CN112118082B - Uplink transmission indication method, device and communication equipment - Google Patents

Uplink transmission indication method, device and communication equipment Download PDF

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Publication number
CN112118082B
CN112118082B CN201910544753.1A CN201910544753A CN112118082B CN 112118082 B CN112118082 B CN 112118082B CN 201910544753 A CN201910544753 A CN 201910544753A CN 112118082 B CN112118082 B CN 112118082B
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transmission
indication information
terminal
beams
reference signal
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CN112118082A (en
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左君
王爱玲
王森
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China Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
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China Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0408—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more beams, i.e. beam diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

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

Abstract

The invention provides an uplink transmission indication method and device and communication equipment, and belongs to the technical field of wireless communication. The uplink transmission indication method is applied to network side equipment and comprises the following steps: sending indication information to a terminal, wherein the indication information indicates any one of the following: an index of at least one sounding reference signal resource; the transmission configuration indicates a state index. By the technical scheme of the invention, the reliability and the transmission rate of uplink transmission can be improved.

Description

Uplink transmission indication method, device and communication equipment
Technical Field
The present invention relates to the field of wireless communications technologies, and in particular, to an uplink transmission indication method, an uplink transmission indication device, and a communication device.
Background
In the existing communication system, a multi-antenna system adopts a mixed architecture of a digital domain and an analog domain to take transmission performance and complexity into consideration. When the base station side and the user side configure a plurality of beams (antenna weights), beam management is required to ensure that the user and the base station communicate using a beam pair with better channel quality to ensure the transmission rate. In the related communication protocol, the spatial relationship (beam information) of an uplink control channel (PUCCH) is configured by a higher layer, the spatial relationship of an uplink data channel (PUSCH) is notified to a terminal through a Sounding Reference Signal (SRS) resource indication (SRI), and an SRI field is indicated by Downlink Control Information (DCI) or configured by a higher layer. And the terminal uses the spatial relation (beam information) of the SRS resource indicated by the SRI to carry out uplink transmission.
In the current communication standard, in a non-codebook based transmission scheme, each layer of an uplink data channel (PUSCH) can use only one beam for transmission; in the codebook-based transmission scheme, only one beam can be used for multi-layer transmission, which limits the reliability and transmission rate of uplink transmission and cannot meet the uplink transmission with lower delay, higher reliability and higher transmission rate.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide an uplink transmission indication method, an apparatus and a communication device, which can improve the reliability and transmission rate of uplink transmission.
To solve the above technical problem, embodiments of the present invention provide the following technical solutions:
the embodiment of the invention provides an uplink transmission indication method, which is applied to network side equipment and comprises the following steps:
sending indication information to a terminal, wherein the indication information indicates any one of the following:
an index of at least one sounding reference signal resource;
the transmission configuration indicates a state index.
Optionally, the sending the indication information to the terminal includes:
and sending the indication information to the terminal through downlink control information or high-level signaling.
Optionally, when the indication information indicates an index of at least one sounding reference signal resource, and an uplink data channel is based on non-codebook transmission, the number of bits occupied by the indication information is determined by the maximum number of beams or the number of transmission layers that can be sent during single-layer transmission by the terminal.
OptionallyThe bit number occupied by the indication information is
Figure BDA0002103601430000021
Wherein N isSRSFor detecting the number of reference signal resources, when the number of transmission layers L is equal to 1, NTxIs the maximum number of beams for single layer transmission; when the number L of transmission layers is greater than 1, NTx＝L。
Optionally, when the indication information indicates an index of at least one sounding reference signal resource, and an uplink data channel is based on codebook transmission, the number of bits occupied by the indication information is determined by the maximum number of beams that can be used by the terminal for simultaneous transmission.
Optionally, the number of bits occupied by the indication information is
Figure BDA0002103601430000022
Wherein N isSRSFor the number of sounding reference signal resources, NTxIs the maximum number of beams that the terminal can use for simultaneous transmission.
The embodiment of the invention also provides an uplink transmission indication method, which is applied to a terminal and comprises the following steps:
receiving indication information of a network side device, wherein the indication information indicates any one of the following:
an index of at least one sounding reference signal resource;
the transmission configuration indicates a state index.
Optionally, the receiving the indication information of the network-side device includes:
and receiving downlink control information or high-level signaling of the network side equipment, wherein the downlink control information or the high-level signaling carries the indication information.
Optionally, when the indication information indicates an index of at least one sounding reference signal resource, and an uplink data channel is based on non-codebook transmission, the number of bits occupied by the indication information is determined by the maximum number of beams or the number of transmission layers that can be sent during single-layer transmission by the terminal.
Optionally, the number of bits occupied by the indication information is
Figure BDA0002103601430000031
Wherein N isSRSFor detecting the number of reference signal resources, when the number of transmission layers L is equal to 1, NTxIs the maximum number of beams for single layer transmission; when the number L of transmission layers is greater than 1, NTx＝L。
Optionally, when the indication information indicates an index of at least one sounding reference signal resource, and an uplink data channel is based on codebook transmission, the number of bits occupied by the indication information is determined by the maximum number of beams that can be used by the terminal for simultaneous transmission.
Optionally, the number of bits occupied by the indication information is
Figure BDA0002103601430000032
Wherein N isSRSFor the number of sounding reference signal resources, NTxIs the maximum number of beams that the terminal can use for simultaneous transmission.
Optionally, the method further comprises:
and when the indication information comprises a transmission configuration indication state index, sending an uplink data channel according to spatial information used by downlink transmission.
The embodiment of the invention also provides an uplink transmission indicating device, which is applied to network side equipment and comprises a processor and a transceiver,
the transceiver is used for sending indication information to a terminal, and the indication information indicates any one of the following:
an index of at least one sounding reference signal resource;
the transmission configuration indicates a state index.
Optionally, the transceiver is specifically configured to send the indication information to the terminal through downlink control information or a higher layer signaling.
Optionally, when the indication information indicates an index of at least one sounding reference signal resource, and an uplink data channel is based on non-codebook transmission, the number of bits occupied by the indication information is determined by the maximum number of beams or the number of transmission layers that can be sent during single-layer transmission by the terminal.
Optionally, the number of bits occupied by the indication information is
Figure BDA0002103601430000033
Wherein N isSRSFor detecting the number of reference signal resources, when the number of transmission layers L is equal to 1, NTxIs the maximum number of beams for single layer transmission; when the number L of transmission layers is greater than 1, NTx＝L。
Optionally, when the indication information indicates an index of at least one sounding reference signal resource, and an uplink data channel is based on codebook transmission, the number of bits occupied by the indication information is determined by the maximum number of beams that can be used by the terminal for simultaneous transmission.
Optionally, the number of bits occupied by the indication information is
Figure BDA0002103601430000041
Wherein N isSRSFor the number of sounding reference signal resources, NTxIs the maximum number of beams that the terminal can use for simultaneous transmission.
The embodiment of the invention also provides an uplink transmission indicating device which is applied to a terminal and comprises a processor and a transceiver,
the transceiver is used for receiving indication information of a network side device, wherein the indication information indicates any one of the following:
an index of at least one sounding reference signal resource;
the transmission configuration indicates a state index.
Optionally, the transceiver is specifically configured to receive downlink control information or a high-level signaling of the network-side device, where the downlink control information or the high-level signaling carries the indication information.
Optionally, when the indication information indicates an index of at least one sounding reference signal resource, and an uplink data channel is based on non-codebook transmission, the number of bits occupied by the indication information is determined by the maximum number of beams or the number of transmission layers that can be sent during single-layer transmission by the terminal.
Optionally, the number of bits occupied by the indication information is
Figure BDA0002103601430000042
Wherein N isSRSFor detecting the number of reference signal resources, when the number of transmission layers L is equal to 1, NTxIs the maximum number of beams for single layer transmission; when the number L of transmission layers is greater than 1, NTx＝L。
Optionally, when the indication information indicates an index of at least one sounding reference signal resource, and an uplink data channel is based on codebook transmission, the number of bits occupied by the indication information is determined by the maximum number of beams that can be used by the terminal for simultaneous transmission.
Optionally, the number of bits occupied by the indication information is
Figure BDA0002103601430000043
Wherein N isSRSFor the number of sounding reference signal resources, NTxIs the maximum number of beams that the terminal can use for simultaneous transmission.
Optionally, the transceiver is further configured to send an uplink data channel according to spatial information used for downlink transmission when the indication information includes a transmission configuration indication state index.
An embodiment of the present invention further provides a communication device, including: a memory, a processor and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps in the uplink transmission indication method as described above.
An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps in the uplink transmission indicating method are implemented.
The embodiment of the invention has the following beneficial effects:
in the above scheme, the network side device sends indication information to the terminal, where the indication information indicates any one of the following: an index of at least one sounding reference signal resource; the transmission configuration indicates a state index. When the indication information indicates the index of at least one sounding reference signal resource, the technical scheme of the invention supports the terminal to simultaneously use a plurality of beams to send uplink data information, thereby improving the reliability and transmission rate of uplink transmission; when the indication information indicates the transmission configuration indication state index, the technical scheme of the invention can directly indicate the spatial relationship of uplink transmission through the spatial relationship of downlink transmission, thereby reducing the time delay of beam indication and improving the reliability and transmission rate of uplink transmission.
Drawings
Fig. 1 is a flowchart illustrating an uplink transmission indication method applied to a network side device according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating an uplink transmission indication method applied to a terminal according to an embodiment of the present invention;
fig. 3 is a block diagram of an uplink open-loop power control apparatus applied to a network side device according to an embodiment of the present invention;
fig. 4 is a block diagram of an uplink open-loop power control apparatus applied to a terminal according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved by the embodiments of the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
In the existing communication system, a multi-antenna system adopts a mixed architecture of a digital domain and an analog domain to take transmission performance and complexity into consideration. When the base station side and the user side configure a plurality of beams (antenna weights), beam management is required to ensure that the user and the base station communicate using a beam pair with better channel quality to ensure the transmission rate. In the related communication protocol, the spatial relationship (beam information) of an uplink control channel (PUCCH) is configured by a higher layer, the spatial relationship of an uplink data channel (PUSCH) is notified to a terminal through a Sounding Reference Signal (SRS) resource indication (SRI), and an SRI field is indicated by Downlink Control Information (DCI) or configured by a higher layer. And the terminal uses the spatial relation (beam information) of the SRS resource indicated by the SRI to carry out uplink transmission.
Currently, in uplink transmission based on non-codebook, a network side may configure 1 SRS resource set (SRS resource set) with usage "non-codebook", and indicate SRI by means of DCI or high-layer configuration, where SRI identifier is mapped to 1 or more SRS resources in the set. The mapping relation between the SRI identifier and the SRS resource is related to the number of transmission layers and the number of the SRS resource. When the SRI is indicated through the DCI, the number of bits occupied by the SRI domain is also related to the number of transmission layers and the number of SRS resources, and the specific number of bits is as follows:
Figure BDA0002103601430000061
during single-layer transmission, the corresponding relationship between SRI and SRS resource is:
Figure BDA0002103601430000062
in the Codebook-based uplink transmission, the network side may configure 1 SRS resource set (SRS resource set) with usage "Codebook" and indicate SRI by means of DCI or higher layer configuration. The SRI identifies the 1 SRS resource mapped to the set. When the SRI is indicated through the DCI, the number of bits occupied by the SRI domain is
Figure BDA0002103601430000063
When NSRS is 2, the SRI and SRS resource correspond as follows:
Bitfield mapped to index SRI(s)，NSRS＝2
0 0
1 1
in the current communication standard, in a non-codebook based transmission scheme, each layer of an uplink data channel (PUSCH) can use only one beam for transmission; in the codebook-based transmission scheme, only one beam can be used for multi-layer transmission, which limits the reliability and transmission rate of uplink transmission. However, some terminal types (such as an unmanned aerial vehicle) have more uplink transmission requirements and more serious uplink interference conditions, and in order to meet the uplink transmission with lower delay, higher reliability and higher transmission rate, a more flexible and effective uplink transmission scheme needs to be adopted. In addition, in downlink transmission, the base station can instruct a transmission beam for downlink transmission to the terminal by a transmission configuration instruction state (TCI state), and when there is channel diversity, the base station can perform communication using the same beam pair as the downlink, that is, the beam for the terminal to receive downlink information is the same as the beam for transmitting uplink information.
Embodiments of the present invention provide an uplink transmission indication method, an uplink transmission indication device, and a communication device, which can improve reliability and transmission rate of uplink transmission.
An embodiment of the present invention provides an uplink transmission indication method, which is applied to a network side device, as shown in fig. 1, and includes:
step 101: sending indication information to a terminal, wherein the indication information indicates any one of the following:
an index of at least one sounding reference signal resource;
the transmission configuration indicates a state index.
In this embodiment, the network side device sends instruction information to the terminal, where the instruction information indicates any one of the following: an index of at least one sounding reference signal resource; the transmission configuration indicates a state index. When the indication information indicates the index of at least one sounding reference signal resource, the technical scheme of the invention supports the terminal to simultaneously use a plurality of beams to send uplink data information, thereby improving the reliability and transmission rate of uplink transmission; when the indication information indicates the transmission configuration indication state index, the technical scheme of the invention can directly indicate the spatial relationship of uplink transmission through the spatial relationship of downlink transmission, thereby reducing the time delay of beam indication and improving the reliability and transmission rate of uplink transmission.
Optionally, the sending the indication information to the terminal includes:
and sending the indication information to the terminal through downlink control information or high-level signaling.
Optionally, when the indication information indicates an index of at least one sounding reference signal resource, and an uplink data channel is based on non-codebook transmission, the number of bits occupied by the indication information is determined by the maximum number of beams or the number of transmission layers that can be sent during single-layer transmission by the terminal.
Optionally, the number of bits occupied by the indication information is
Figure BDA0002103601430000081
Wherein N isSRSFor detecting the number of reference signal resources, the network side device may be configured, and when the number of transmission layers L is equal to 1, N isTxThe maximum number of beams for single-layer transmission can be reported by a terminal or configured by network side equipment; when the number L of transmission layers is greater than 1, NTx＝L。
Optionally, when the indication information indicates an index of at least one sounding reference signal resource, and an uplink data channel is based on codebook transmission, the number of bits occupied by the indication information is determined by the maximum number of beams that can be used by the terminal for simultaneous transmission.
Optionally, the number of bits occupied by the indication information is
Figure BDA0002103601430000082
Wherein N isSRSFor the number of sounding reference signal resources, NTxIs the maximum number of beams that the terminal can use for simultaneous transmission.
An embodiment of the present invention further provides an uplink transmission indication method, which is applied to a terminal, and as shown in fig. 2, the method includes:
step 201: receiving indication information of a network side device, wherein the indication information indicates any one of the following:
an index of at least one sounding reference signal resource;
the transmission configuration indicates a state index.
In this embodiment, the network side device sends instruction information to the terminal, where the instruction information indicates any one of the following: an index of at least one sounding reference signal resource; the transmission configuration indicates a state index. When the indication information indicates the index of at least one sounding reference signal resource, the technical scheme of the invention supports the terminal to simultaneously use a plurality of beams to send uplink data information, thereby improving the reliability and transmission rate of uplink transmission; when the indication information indicates the transmission configuration indication state index, the technical scheme of the invention can directly indicate the spatial relationship of uplink transmission through the spatial relationship of downlink transmission, thereby reducing the time delay of beam indication and improving the reliability and transmission rate of uplink transmission.
Optionally, the receiving the indication information of the network-side device includes:
and receiving downlink control information or high-level signaling of the network side equipment, wherein the downlink control information or the high-level signaling carries the indication information.
Optionally, when the indication information indicates an index of at least one sounding reference signal resource, and an uplink data channel is based on non-codebook transmission, the number of bits occupied by the indication information is determined by the maximum number of beams or the number of transmission layers that can be sent during single-layer transmission by the terminal.
Optionally, the number of bits occupied by the indication information is
Figure BDA0002103601430000091
Wherein N isSRSFor detecting the number of reference signal resources, when the number of transmission layers L is equal to 1, NTxIs the maximum number of beams for single layer transmission; when the number L of transmission layers is greater than 1, NTx＝L。
Optionally, when the indication information indicates an index of at least one sounding reference signal resource, and an uplink data channel is based on codebook transmission, the number of bits occupied by the indication information is determined by the maximum number of beams that can be used by the terminal for simultaneous transmission.
Optionally, the number of bits occupied by the indication information is
Figure BDA0002103601430000092
Wherein N isSRSFor the number of sounding reference signal resources, NTxIs the maximum number of beams that the terminal can use for simultaneous transmission.
Optionally, the method further comprises:
and when the indication information comprises a transmission configuration indication state index, sending an uplink data channel according to spatial information used by downlink transmission.
The technical scheme of the invention is further described by combining the specific embodiments as follows:
example one
In this embodiment, the uplink data channel is uplink transmission based on a codebook, and the indication information indicates SRS resource index information.
In order to improve the reliability of PUSCH transmission, a terminal may use at most 2 beams for single-layer transmission, where the number of bits occupied by the indication information is:
Figure BDA0002103601430000101
wherein N isSRSIs the number of SRS resources, NTxThe number of the transmission beams simultaneously used by the terminal during uplink transmission. When N is presentSRSWhen the number is equal to 2, 3, and 4, the mapping relationship between the indication information and the indicated SRS resource is as follows:
Figure BDA0002103601430000102
in NSRSEqual to 2, when the SRS resources 0 and 1 are included and the indication information is 0, the SRS resource 0 is indicated; when the indication information is 1, indicating that the SRS resource is 1; when the indication information is 2, SRS resources 0 and 1 are indicated.
In NSRSEqual to 3, when the SRS resources 0, 1 and 2 are included and the indication information is 0, the SRS resource 0 is indicated; when the indication information is 1, indicating that the SRS resource is 1; when the indication information is 2, the SRS resource 2 is indicated; when the indication information is 3, SRS resources 0 and 1 are indicated; when the indication information is 4, the SRS resources 0 and 2 are indicated; when the indication information is 5, SRS resources 1 and 2 are indicated.
In NSRSEqual to 4, when the SRS resources 0, 1, 2 and 3 are included and the indication information is 0, the SRS resource 0 is indicated; when the indication information is 1, indicating that the SRS resource is 1; when the indication information is 2, the SRS resource 2 is indicated; when the indication information is 3, the SRS resource 3 is indicated; when the indication information is 4, SRS resources 0 and 1 are indicated; when the indication information is 5, SRS resources 0 and 2 are indicated; when the indication information is 6, SRS resources 0 and 3 are indicated; when the indication information is 7, the SRS resources 1 and 2 are indicated; when the indication information is 8, the SRS resources 1 and 2 are indicated; when the indication information is 9, SRS resources 2 and 3 are indicated.
Example two
In this embodiment, the uplink data channel uses codebook-based uplink transmission, and the number of bits occupied by the indication information is min { N }SRS,NTxWhen N is reachedSRS＝NTxWhen the SRS resource is 2, the mapping relationship between the indication information and the indicated SRS resource is as follows:
Bit field mapped to index SRI(s),NSRS＝2
0 0
1 1
2 0,1
3 Reserved
in NSRSEqual to 2, when the SRS resources 0 and 1 are included and the indication information is 0, the SRS resource 0 is indicated; when the indication information is 1, indicating that the SRS resource is 1; when the indication information is 2, SRS resources 0 and 1 are indicated.
EXAMPLE III
In this embodiment, the network side device sends DCI to the terminal, where the indication information in the DCI indicates a TCI state index, and after receiving the indication information, the terminal sends a PUSCH according to spatial information used for receiving downlink transmission, so that the delay of beam indication can be reduced.
The embodiment of the present invention further provides an uplink transmission indicating apparatus, which is applied to a network side device, as shown in fig. 3, and includes a processor 31 and a transceiver 32,
the transceiver 32 is configured to send indication information to the terminal, where the indication information indicates any one of the following:
an index of at least one sounding reference signal resource;
the transmission configuration indicates a state index.
In this embodiment, the network side device sends instruction information to the terminal, where the instruction information indicates any one of the following: an index of at least one sounding reference signal resource; the transmission configuration indicates a state index. When the indication information indicates the index of at least one sounding reference signal resource, the technical scheme of the invention supports the terminal to simultaneously use a plurality of beams to send uplink data information, thereby improving the reliability and transmission rate of uplink transmission; when the indication information indicates the transmission configuration indication state index, the technical scheme of the invention can directly indicate the spatial relationship of uplink transmission through the spatial relationship of downlink transmission, thereby reducing the time delay of beam indication and improving the reliability and transmission rate of uplink transmission.
Optionally, the transceiver 32 is specifically configured to send the indication information to the terminal through downlink control information or a higher layer signaling.
Optionally, when the indication information indicates an index of at least one sounding reference signal resource, and an uplink data channel is based on non-codebook transmission, the number of bits occupied by the indication information is determined by the maximum number of beams or the number of transmission layers that can be sent during single-layer transmission by the terminal.
Optionally, the number of bits occupied by the indication information is
Figure BDA0002103601430000121
Wherein N isSRSFor detecting the number of reference signal resources, when the number of transmission layers L is equal to 1, NTxIs the maximum number of beams for single layer transmission; when the number L of transmission layers is greater than 1, NTx＝L。
Optionally, when the indication information indicates an index of at least one sounding reference signal resource, and an uplink data channel is based on codebook transmission, the number of bits occupied by the indication information is determined by the maximum number of beams that can be used by the terminal for simultaneous transmission.
Optionally, the number of bits occupied by the indication information is
Figure BDA0002103601430000122
Wherein N isSRSFor the number of sounding reference signal resources, NTxIs the maximum number of beams that the terminal can use for simultaneous transmission.
The embodiment of the present invention further provides an uplink transmission indicating device, which is applied to a terminal, and as shown in fig. 4, includes a processor 41 and a transceiver 42,
the transceiver 42 is configured to receive indication information of a network-side device, where the indication information indicates any one of the following:
an index of at least one sounding reference signal resource;
the transmission configuration indicates a state index.
In this embodiment, the network side device sends instruction information to the terminal, where the instruction information indicates any one of the following: an index of at least one sounding reference signal resource; the transmission configuration indicates a state index. When the indication information indicates the index of at least one sounding reference signal resource, the technical scheme of the invention supports the terminal to simultaneously use a plurality of beams to send uplink data information, thereby improving the reliability and transmission rate of uplink transmission; when the indication information indicates the transmission configuration indication state index, the technical scheme of the invention can directly indicate the spatial relationship of uplink transmission through the spatial relationship of downlink transmission, thereby reducing the time delay of beam indication and improving the reliability and transmission rate of uplink transmission.
Optionally, the transceiver 42 is specifically configured to receive downlink control information or a high-level signaling of the network-side device, where the downlink control information or the high-level signaling carries the indication information.
Optionally, when the indication information indicates an index of at least one sounding reference signal resource, and an uplink data channel is based on non-codebook transmission, the number of bits occupied by the indication information is determined by the maximum number of beams or the number of transmission layers that can be sent during single-layer transmission by the terminal.
Optionally, the number of bits occupied by the indication information is
Figure BDA0002103601430000131
Wherein N isSRSFor detecting the number of reference signal resources, when the number of transmission layers L is equal to 1, NTxIs the maximum number of beams for single layer transmission; when the number L of transmission layers is greater than 1, NTx＝L。
Optionally, when the indication information indicates an index of at least one sounding reference signal resource, and an uplink data channel is based on codebook transmission, the number of bits occupied by the indication information is determined by the maximum number of beams that can be used by the terminal for simultaneous transmission.
Optionally, the number of bits occupied by the indication information is
Figure BDA0002103601430000132
Wherein N isSRSFor the number of sounding reference signal resources, NTxIs the maximum number of beams that the terminal can use for simultaneous transmission.
Optionally, the transceiver 42 is further configured to send an uplink data channel according to spatial information used for downlink transmission when the indication information includes a transmission configuration indication state index.
An embodiment of the present invention further provides a communication device, including: a memory, a processor and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps in the uplink transmission indication method as described above.
An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps in the uplink transmission indicating method are implemented.
It is to be understood that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or any combination thereof. For a hardware implementation, the Processing units may be implemented within one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), general purpose processors, controllers, micro-controllers, microprocessors, other electronic units configured to perform the functions described herein, or a combination thereof.
For a software implementation, the techniques described herein may be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described herein. The software codes may be stored in a memory and executed by a processor. The memory may be implemented within the processor or external to the processor.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing terminal to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing terminal to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing terminal to cause a series of operational steps to be performed on the computer or other programmable terminal to produce a computer implemented process such that the instructions which execute on the computer or other programmable terminal provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.
It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims.

Claims (12)

1. An uplink transmission indication method is applied to a network side device, and includes:
sending indication information for indicating uplink transmission to a terminal, wherein the indication information comprises an index of at least one sounding reference signal resource and a transmission configuration indication state index; the index of the at least one sounding reference signal resource supports a terminal to simultaneously use a plurality of beams to transmit uplink data information, and the transmission configuration indication state index indicates that an uplink data channel is transmitted according to spatial information used by downlink transmission;
the bit number occupied by the indication information is
Figure FDA0003475549960000011
When the uplink data channel is based on non-codebook transmission, the bit number occupied by the indication information is determined by the maximum number of beams or the number of transmission layers which can be sent when the terminal transmits in a single layer, and N isSRSFor detecting the number of reference signal resources, when the number of transmission layers L is equal to 1, NTxIs the maximum number of beams for single layer transmission; when the number L of transmission layers is greater than 1, NTx＝L；
When the uplink data channel is codebook-based transmission, the bit number occupied by the indication information is determined by the maximum number of beams which can be used for simultaneous transmission by the terminal, NSRSFor the number of sounding reference signal resources, NTxIs the maximum number of beams that the terminal can use for simultaneous transmission.
2. The uplink transmission indicating method according to claim 1, wherein the sending the indication information to the terminal comprises:
and sending the indication information to the terminal through downlink control information or high-level signaling.
3. An uplink transmission indication method is applied to a terminal, and includes:
receiving indication information used for indicating uplink transmission of network side equipment, wherein the indication information comprises an index of at least one sounding reference signal resource and a transmission configuration indication state index; the index of the at least one sounding reference signal resource supports a terminal to simultaneously use a plurality of beams to transmit uplink data information, and the transmission configuration indication state index indicates that an uplink data channel is transmitted according to spatial information used by downlink transmission;
the bit number occupied by the indication information is
Figure FDA0003475549960000012
When the uplink data channel is based on non-codebook transmission, the bit number occupied by the indication information is determined by the maximum number of beams or the number of transmission layers which can be sent when the terminal transmits in a single layer, and N isSRSFor detecting the number of reference signal resources, when the number of transmission layers L is equal to 1, NTxIs the maximum number of beams for single layer transmission; when the number L of transmission layers is greater than 1, NTx＝L；
When the uplink data channel is codebook-based transmission, the bit number occupied by the indication information is determined by the maximum number of beams which can be used for simultaneous transmission by the terminal, NSRSFor the number of sounding reference signal resources, NTxIs the maximum number of beams that the terminal can use for simultaneous transmission.
4. The uplink transmission indication method according to claim 3, wherein the receiving the indication information of the network side device comprises:
and receiving downlink control information or high-level signaling of the network side equipment, wherein the downlink control information or the high-level signaling carries the indication information.
5. The uplink transmission indication method according to claim 3, further comprising:
and when the indication information comprises a transmission configuration indication state index, sending an uplink data channel according to spatial information used by downlink transmission.
6. An uplink transmission indicating device is applied to a network side device and comprises a processor and a transceiver,
the transceiver is configured to send, to a terminal, indication information indicating uplink transmission, where the indication information includes: an index of at least one sounding reference signal resource, and a transmission configuration indication state index; the index of the at least one sounding reference signal resource supports a terminal to simultaneously use a plurality of beams to send uplink data information, and the transmission configuration indication state index indicates that an uplink data channel is sent according to spatial information used by downlink transmission;
the bit number occupied by the indication information is
Figure FDA0003475549960000021
When the uplink data channel is based on non-codebook transmission, the bit number occupied by the indication information is determined by the maximum number of beams or the number of transmission layers which can be sent when the terminal transmits in a single layer, and N isSRSFor detecting the number of reference signal resources, when the number of transmission layers L is equal to 1, NTxIs the maximum number of beams for single layer transmission; when the number L of transmission layers is greater than 1, NTx＝L；
When the uplink data channel is codebook-based transmission, the bit number occupied by the indication information is determined by the maximum number of beams which can be used for simultaneous transmission by the terminal, NSRSFor the number of sounding reference signal resources, NTxIs the maximum number of beams that the terminal can use for simultaneous transmission.
7. The apparatus according to claim 6, wherein the transceiver is specifically configured to send the indication information to the terminal through downlink control information or higher layer signaling.
8. An uplink transmission indicating device is applied to a terminal and comprises a processor and a transceiver,
the transceiver is configured to receive indication information used for indicating uplink transmission of a network side device, where the indication information includes: an index of at least one sounding reference signal resource, and a transmission configuration indication state index; the index of the at least one sounding reference signal resource supports a terminal to simultaneously use a plurality of beams to send uplink data information, and the transmission configuration indication state index indicates that an uplink data channel is sent according to spatial information used by downlink transmission;
the bit number occupied by the indication information is
Figure FDA0003475549960000031
When the uplink data channel is based on non-codebook transmission, the bit number occupied by the indication information is determined by the maximum number of beams or the number of transmission layers which can be sent when the terminal transmits in a single layer, and N isSRSFor detecting the number of reference signal resources, when the number of transmission layers L is equal to 1, NTxIs the maximum number of beams for single layer transmission; when the number L of transmission layers is greater than 1, NTx＝L；
When the uplink data channel is codebook-based transmission, the bit number occupied by the indication information is determined by the maximum number of beams which can be used for simultaneous transmission by the terminal, NSRSFor the number of sounding reference signal resources, NTxIs the maximum number of beams that the terminal can use for simultaneous transmission.
9. The apparatus according to claim 8, wherein the transceiver is specifically configured to receive downlink control information or higher layer signaling of the network side device, and the downlink control information or higher layer signaling carries the indication information.
10. The apparatus of claim 8, wherein the transceiver is further configured to transmit an uplink data channel according to spatial information used for downlink transmission when the indication information includes a transmission configuration indication status index.
11. A communication device, comprising: memory, a processor and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps in the method of uplink transmission indication according to any of claims 1 to 5.
12. A computer-readable storage medium, having stored thereon a computer program which, when being executed by a processor, carries out the steps of the method for indicating an uplink transmission according to any one of claims 1 to 5.
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