CN111416692B - Configuration method and device - Google Patents
Configuration method and device Download PDFInfo
- Publication number
- CN111416692B CN111416692B CN201910010611.7A CN201910010611A CN111416692B CN 111416692 B CN111416692 B CN 111416692B CN 201910010611 A CN201910010611 A CN 201910010611A CN 111416692 B CN111416692 B CN 111416692B
- Authority
- CN
- China
- Prior art keywords
- dmrs
- configuration
- target
- terminal
- sequence
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 65
- 238000004590 computer program Methods 0.000 claims description 5
- 238000013507 mapping Methods 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims 1
- 238000004891 communication Methods 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 8
- 238000012545 processing Methods 0.000 description 5
- 230000011664 signaling Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 206010042135 Stomatitis necrotising Diseases 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 201000008585 noma Diseases 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- GVVPGTZRZFNKDS-JXMROGBWSA-N geranyl diphosphate Chemical compound CC(C)=CCC\C(C)=C\CO[P@](O)(=O)OP(O)(O)=O GVVPGTZRZFNKDS-JXMROGBWSA-N 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000004549 pulsed laser deposition Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Images
Classifications
-
- 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
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
-
- 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
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
-
- 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
Abstract
The embodiment of the invention provides a configuration method and equipment, which relate to the technical field of communication and are used for solving the problem that the port number borne by the existing DMRS scheme cannot meet the user demand, wherein the method comprises the following steps: the terminal receives first indication information from the network equipment, wherein the first indication information is used for indicating target demodulation reference signal (DMRS) configuration used by the terminal; and the terminal generates a target DMRS sequence according to the target DMRS configuration. In the embodiment of the invention, the terminal determines the target DMRS configuration according to the first indication information sent by the network equipment, and generates the target DMRS sequence according to the target DMRS configuration, so that the port number of the DMRS can meet the requirement of a user.
Description
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to a configuration method and device.
Background
Referring to fig. 1, a demodulation reference signal (Demodulation Reference Signal, DMRS) design of a physical uplink shared channel (Physical Uplink Share Channel, PUSCH) in a fifth generation communication technology (5G) is shown. Under this scheme, up to 12 DMRS ports may be carried on time-frequency resources of 1 physical resource block (Physical Resource Block, PRB) and 2 orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbols. Taking code division multiplexing group (Code Division Multiplexing group, CDM group) 0 as an example, 8 Resource Elements (REs) are occupied on the time-frequency Resource. The 8 REs carry 4 DMRS ports through an orthogonal mask (Orthogonal Cover Code, OCC) of length 4.
To further improve the spectrum utilization efficiency and the number of users supported by 5G systems, the third generation partnership project (third Generation Partnership Project,3 GPP) discusses the introduction of Non-orthogonal multiple access (Non-Orthogonal Multiple Access, NOMA) techniques in the 5G standard. The NOMA technology can allocate a block of resources to a plurality of users, and then combines the techniques of serial interference elimination of a receiving end and the like to realize correct demodulation.
However, due to the increase of the number of uplink access users after the NOMA technology is introduced, the number of ports carried by the existing DMRS scheme cannot meet the user requirements.
Disclosure of Invention
The embodiment of the invention provides a configuration method and device, which solve the problem that the port number borne by the existing DMRS scheme cannot meet the user demand.
According to a first aspect of an embodiment of the present invention, there is provided a configuration method, applied to a terminal, the method including: receiving first indication information from a network device, wherein the first indication information is used for indicating target demodulation reference signal (DMRS) configuration used by the terminal; generating a target DMRS sequence according to the target DMRS configuration; wherein the target DMRS configuration includes a first configuration scheme or a second configuration scheme of DMRS of a second configuration type configuration type.
Optionally, the manners of dividing the resource elements RE contained in each CDM group by the first configuration scheme and the second configuration scheme are the same;
optionally, the first configuration scheme corresponds to a frequency domain orthogonal sequence of a first length, and the second configuration scheme corresponds to a frequency domain orthogonal sequence of a second length.
Optionally, the generating a target DMRS sequence according to the target DMRS configuration includes: and calculating the target DMRS sequence through a DMRS sequence generation algorithm corresponding to the target DMRS configuration.
Optionally, the DMRS sequence generating algorithm is a DMRS symbol of the DMRS port calculated by using a frequency domain orthogonal sequence, a time domain orthogonal sequence, and a DMRS symbol sequence.
Optionally, when the target DMRS is configured as the first configuration scheme, the DMRS sequence generation algorithm is:
k＝6n+k′+Δ；
k′＝0,1；
wherein ,
representing DMRS port +.>
DMRS symbols of (a); μ denotes a subcarrier spacing configuration; />
For the starting OFDM symbol position carrying DMRS, l' =0, 1; n is a natural number, j=0, 1, &..v-1, v is the total number of DMRS ports; w (w) f (k') represents a frequency domain orthogonal sequence; w (w) t (l') represents a time domain orthogonal sequence; r (2n+k') represents a DMRS symbol sequence; delta represents the subcarrier offset.
Optionally, when the target DMRS is configured in the second configuration scheme, the DMRS sequence generation algorithm is:
k′＝0,1；k″＝0,1,2,3；
wherein ,
representing DMRS ports mapped on subcarrier k, OFDM symbol l>
DMRS symbols of (a); μ denotes a subcarrier spacing configuration; />
For the starting OFDM symbol position carrying DMRS, l' =0, 1; n is a natural number; j=0, 1, &.. v-1, v is the total number of DMRS ports; w (w) f (k ") represents a frequency domain orthogonal sequence; w (w) t (l') represents a time domain orthogonal sequence; r (2n+k ") represents a DMRS symbol sequence; delta represents the subcarrier offset.
Optionally, after the generating the target DMRS sequence according to the target DMRS configuration, the method further includes: receiving second indication information from the network device, wherein the second indication information is used for indicating a target DMRS port; determining a target DMRS symbol from the target DMRS sequence according to the target DMRS port; and mapping the target DMRS symbol on an RE corresponding to the target DMRS port, and sending the DMRS to the network equipment.
According to a second aspect of an embodiment of the present invention, there is provided a configuration method applied to a network device, the method including: transmitting first indication information to a terminal, wherein the first indication information is used for indicating target DMRS configuration used by the terminal, and generating a target DMRS sequence by the terminal according to the target DMRS configuration; wherein the target DMRS configuration includes a first configuration scheme or a second configuration scheme of the DMRS of configuration type.
Optionally, the first configuration scheme and the second configuration scheme divide the resource elements RE contained in each CDM group in the same manner.
Optionally, the first configuration scheme corresponds to a frequency domain orthogonal sequence of a first length, and the second configuration scheme corresponds to a frequency domain orthogonal sequence of a second length.
Optionally, after the first indication information is sent to the terminal, the method further includes: transmitting second indication information to the terminal, where the second indication information is used to indicate a target DMRS port used by the terminal, and the terminal determines a target DMRS symbol from the target DMRS sequence according to the target DMRS port, and maps the target DMRS symbol on an RE corresponding to the target DMRS port; and receiving the DMRS sent by the terminal.
According to a third aspect of an embodiment of the present invention, there is provided a terminal including: a first transceiver and a first processor, wherein the first transceiver is configured to receive first indication information from a network device, the first indication information being configured to indicate a target demodulation reference signal DMRS configuration used by the terminal; the first processor is configured to generate a target DMRS sequence according to the target DMRS configuration; wherein the target DMRS configuration includes a first configuration scheme or a second configuration scheme of the DMRS of configuration type.
Optionally, the manners of dividing the resource elements RE contained in each CDM group by the first configuration scheme and the second configuration scheme are the same;
optionally, the first configuration scheme corresponds to a frequency domain orthogonal sequence of a first length, and the second configuration scheme corresponds to a frequency domain orthogonal sequence of a second length.
Optionally, the first processor is further configured to calculate, through a DMRS sequence generation algorithm corresponding to the target DMRS configuration, the target DMRS sequence.
Optionally, the DMRS sequence generating algorithm is a DMRS symbol of the DMRS port calculated by using a frequency domain orthogonal sequence, a time domain orthogonal sequence, and a DMRS symbol sequence.
Optionally, when the target DMRS is configured as the first configuration scheme, the DMRS sequence generation algorithm is:
k＝6n+k′+Δ；
k′＝0,1；
wherein ,
representing DMRS port +.>
DMRS symbols of (a); μ denotes a subcarrier spacing configuration; />
For the starting OFDM symbol position carrying DMRS, l' =0, 1; n is a natural number, j=0, 1, &..v-1, v is the total number of DMRS ports; w (w) f (k') represents a frequency domain orthogonal sequence; w (w) t (l') represents a time domain orthogonal sequence; r (2n+k') represents a DMRS symbol sequence; delta represents the subcarrier offset.
Optionally, when the target DMRS is configured in the second configuration scheme, the DMRS sequence generation algorithm is:
k′＝0,1；k″＝0,1,2,3；
wherein ,
representing DMRS ports mapped on subcarrier k, OFDM symbol l>
DMRS symbols of (a); μ denotes a subcarrier spacing configuration; />
For the starting OFDM symbol position carrying DMRS, l' =0, 1; n is a natural number; j=0, 1, &.. v-1, v is the total number of DMRS ports; w (w) f (k ") represents a frequency domain orthogonal sequence; w (w) t (l') represents a time domain orthogonal sequence; r (2n+k ") represents a DMRS symbol sequence; delta represents the subcarrier offset.
Optionally, the first transceiver is further configured to receive second indication information from the network device, where the second indication information is used to indicate a target DMRS port; the first processor is further configured to determine, according to the target DMRS port, a target DMRS symbol from the target DMRS sequence; the first processor is further configured to map the target DMRS symbol on an RE corresponding to the target DMRS port, and send a DMRS to the network device.
According to a fourth aspect of an embodiment of the present invention, there is provided a network device, including: a network device, comprising: the system comprises a second transceiver and a second processor, wherein the second transceiver is used for sending first indication information to a terminal, the first indication information is used for indicating target DMRS configuration used by the terminal, and the terminal generates a target DMRS sequence according to the target DMRS configuration, and the target DMRS configuration comprises a first configuration scheme or a second configuration scheme of the DMRS of configuration type.
Optionally, the first configuration scheme and the second configuration scheme divide the resource elements RE contained in each CDM group in the same manner.
Optionally, the first configuration scheme corresponds to a frequency domain orthogonal sequence of a first length, and the second configuration scheme corresponds to a frequency domain orthogonal sequence of a second length.
Optionally, the second transceiver is further configured to send second indication information to the terminal, where the second indication information is used to indicate a target DMRS port used by the terminal, and the terminal determines a target DMRS symbol from the target DMRS sequence according to the target DMRS port, and maps the target DMRS symbol on an RE corresponding to the target DMRS port; the second transceiver is further configured to receive DMRS sent by the terminal
According to a fifth aspect of an embodiment of the present invention, there is provided a terminal comprising a processor, a memory and a program stored on the memory and executable on the processor, the program implementing the steps of the configuration method according to the first aspect when being executed by the processor.
According to a sixth aspect of embodiments of the present invention, there is provided a network device comprising a processor, a memory and a program stored on the memory and executable on the processor, the program when executed by the processor implementing the steps of the configuration method according to the second aspect.
According to a seventh aspect of an embodiment of the present invention, there is provided a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, which when executed by a processor, implements the steps of the configuration method according to the first aspect, or the steps of the configuration method according to the second aspect.
In the embodiment of the invention, the terminal determines the target DMRS configuration according to the first indication information sent by the network equipment, and generates the target DMRS sequence according to the target DMRS configuration, so that the port number of the DMRS can meet the requirement of a user.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a conventional DMRS structure;
fig. 2 is a schematic diagram of an architecture of a wireless communication system according to an embodiment of the present invention;
FIG. 3 is a schematic flow chart of a configuration method according to an embodiment of the present invention;
fig. 4a is a schematic diagram of first indication information provided in an embodiment of the present invention;
fig. 4b is a schematic diagram of DMRS structure provided in an embodiment of the present invention;
FIG. 5 is a second flow chart of a configuration method according to an embodiment of the present invention;
FIG. 6 is a third flow chart of a configuration method according to an embodiment of the present invention;
fig. 7a is one of application scenarios provided in an embodiment of the present invention;
FIG. 7b is a second embodiment of the present invention;
FIG. 8 is a flow chart of a configuration method according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a terminal according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of a network device according to an embodiment of the present invention;
FIG. 11 is a second schematic diagram of a terminal according to an embodiment of the present invention;
fig. 12 is a second schematic structural diagram of a network device according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 2, an embodiment of the present invention provides a wireless communication system. As shown in fig. 2, the wireless communication system may include: network-side equipment 21 and a terminal 22. In practical application, the connection between the devices may be wireless connection, and for convenience and intuitionistic representation of the connection relationship between the devices, a solid line is used for illustration in fig. 2.
It should be noted that the communication system may include a plurality of terminals, and the network-side device may communicate (transmit signaling or transmit data) with the plurality of terminals.
The network-side device may be a device such as a next generation base station (next generation node base station, gNB) or a transmission and reception point (transmission and reception point, TRP) in a 5G (Fifth generation mobile communication technology) system.
The terminal can be a Mobile phone, a tablet computer, a notebook computer, an Ultra-Mobile PersonalComputer, UMPC, a netbook or a personal digital assistant (Personal Digital Assistant, PDA) and the like.
Referring to fig. 3, an embodiment of the present invention provides a configuration method, where an execution body of the method is a terminal, and specific steps are as follows:
step 301: receiving first indication information from a network device;
in the embodiment of the present invention, the first indication information is used to indicate the target DMRS configuration used by the terminal, and optionally, the first indication information is carried in radio resource control (Radio Resource Control, RRC) signaling.
Further, the target DMRS configures a first configuration scheme or a second configuration scheme of the DMRS including a second configuration type (configuration type 2).
The method for dividing REs contained in each CDM group by the first configuration scheme and the second configuration scheme is the same; the first configuration scheme corresponds to a frequency domain orthogonal sequence of a first length, and the second configuration scheme corresponds to a frequency domain orthogonal sequence of a second length.
Specifically, referring to fig. 4a, the network device sends an RRC signaling to the terminal, where the RRC signaling is DMRS-uplink config, the first indication information is a DMRS-Type field in the signaling, and the terminal determines a target DMRS configuration to be used according to the content of the DMRS-Type field.
Step 302: generating a target DMRS sequence according to the target DMRS configuration;
in the embodiment of the invention, the terminal generates the target DMRS sequence in different modes according to different target DMRS configurations indicated by the network equipment.
Specifically, the terminal calculates the target DMRS sequence through a DMRS sequence generation algorithm corresponding to the target DMRS configuration.
With continued reference to fig. 4a, when the DMRS-Type field is configured as Type2, it indicates that the target DMRS is configured as a first configuration scheme, and a frequency domain orthogonal sequence of a first length is adopted on REs corresponding to each CDM group, for example: the first length is 4;
referring to fig. 4b, when the DMRS-Type field is configured as Type2E, it indicates that the target DMRS is configured as a second configuration scheme, and a frequency domain orthogonal sequence of a second length is adopted on REs corresponding to each CDM group, for example: the second length is 8.
It can be understood that when the length of the frequency domain orthogonal sequence is 8 on the RE of each CDM group, the total number of DMRS ports that can be carried on the same time-frequency resource can be increased to 24, so as to meet the port requirements of more users.
Optionally, the DMRS sequence generating algorithm is a DMRS symbol of the DMRS port calculated from the frequency domain orthogonal sequence, the time domain orthogonal sequence, and the DMRS symbol sequence.
Further, when the target DMRS is configured as the first configuration scheme, the DMRS sequence generation algorithm is:
k＝6n+k′+Δ；
k′＝0,1；
wherein ,
representing DMRS ports mapped on subcarrier k, OFDM symbol l>
DMRS symbols of (a); μ denotes a subcarrier spacing configuration; />
For the starting OFDM symbol position carrying DMRS, l' =0, 1; n is a natural number, j=0, 1,.. V-1, v is the total number of DMRS ports, v is a positive integer, j is a natural number; w (w) f (k') represents a frequency domain orthogonal sequence; w (w) t (l') represents a time domain orthogonal sequence; r (2n+k') represents a DMRS symbol sequence; delta represents the subcarrier offset.
The corresponding values of the parameters in the algorithm can be referred to in table 1:
TABLE 1
Further, when the target DMRS is configured in the second configuration scheme, the DMRS sequence generation algorithm is:
k′＝0,1；k″＝0,1,2,3；
wherein ,
representing DMRS ports mapped on subcarrier k, OFDM symbol l>
DMRS symbols of (a); μ denotes a subcarrier spacing configuration; />
For the starting OFDM symbol position carrying DMRS, l' =0, 1; n is a natural number; j=0, 1, &.. v-1, v is DMRS portThe total number v is a positive integer, and j is a natural number; w (w) f (k ") represents a frequency domain orthogonal sequence; w (w) t (l') represents a time domain orthogonal sequence; r (2n+k ") represents a DMRS symbol sequence; delta represents the subcarrier offset.
The corresponding values of the parameters in the algorithm can be referred to in table 2:
TABLE 2
Referring to fig. 5, an embodiment of the present invention provides a configuration method, where an execution body of the method is a network device, and specific steps are as follows:
step 501: sending first indication information to a terminal;
in the embodiment of the present invention, the first indication information is used to indicate the target DMRS configuration used by the terminal, and the terminal generates the target DMRS sequence according to the target DMRS configuration, and the specific generation process may refer to the descriptions of step 301 and step 302 in fig. 3, which are not repeated herein.
In the embodiment of the invention, the terminal determines the target DMRS configuration according to the first indication information sent by the network equipment, and generates the target DMRS sequence according to the target DMRS configuration, so that the port number of the DMRS can meet the requirement of a user.
Referring to fig. 6, an embodiment of the present invention provides a configuration method, where an execution body of the method is a terminal, and specific steps are as follows:
step 601: receiving first indication information from a network device;
step 602: generating a target DMRS sequence according to the target DMRS configuration;
the description of steps 601 and 602 above may refer to the description of steps 301 and 302 in fig. 3.
Step 603: receiving second indication information from the network device;
in the embodiment of the present invention, the second indication information is used to indicate the target DMRS port, optionally, the second indication information is carried in an Uplink grant (UL grant) message or a Configured grant (Configured grant) message, and further, the second indication information is antenna port (antenna port) information.
Step 604: determining a target DMRS symbol from the target DMRS sequence according to the target DMRS port;
in the embodiment of the invention, the terminal determines a target DMRS symbol corresponding to a target DMRS port in a target DMRS sequence according to the target DMRS port.
Specifically, taking the example that the target DMRS port is port 3 (port 3), port 3 represents
The terminal calculates corresponding DMRS symbols according to the DMRS sequence generation algorithm>
Step 605: and mapping the target DMRS symbol on the RE corresponding to the target DMRS port, and sending the DMRS to the network equipment.
In the embodiment of the present invention, referring to fig. 7a, the DMRS symbol generated by port 3 and the location of the corresponding RE are shown when the first indication information indicates that the frequency domain orthogonal sequence of the first length is adopted on the RE of each CDM group.
Referring to fig. 7b, the DMRS symbol generated by port 3 and the location of the corresponding RE are shown when the first indication information indicates that the frequency domain orthogonal sequence of the second length is employed on the RE of each CDM group.
Referring to fig. 8, an embodiment of the present invention provides a configuration method, where an execution body of the method is a network device, and specific steps are as follows:
step 801: sending first indication information to a terminal;
the above description of step 801 may refer to the description of step 501 in fig. 5, and will not be repeated herein.
Step 802: sending second indication information to the terminal;
in the embodiment of the present invention, the second indication information is used to indicate the target DMRS port used by the terminal, the terminal determines the target DMRS symbol from the target DMRS sequence according to the target DMRS port, and maps the target DMRS symbol on the RE corresponding to the target DMRS port, and the specific process may refer to the descriptions of step 603 and step 605 in fig. 6 and will not be repeated here.
Step 803: receiving a DMRS sent by a terminal;
in the embodiment of the invention, after the terminal generates the target DMRS sequence, the target DMRS port is determined according to the second indication information sent by the network equipment, the corresponding target DMRS symbol is determined through the target DMRS port, the target DMRS symbol is mapped on the RE corresponding to the target DMRS port, and the DMRS is sent to the network equipment, so that the requirement of using the DMRS port by a user is met.
Referring to fig. 9, an embodiment of the present invention provides a terminal 900, including: a first transceiver 901 and a first processor 902;
wherein the first transceiver 901 is configured to receive first indication information from a network device, where the first indication information is used to indicate a target DMRS configuration used by the terminal;
the first processor 902 is configured to generate a target DMRS sequence according to the target DMRS configuration.
Wherein the target DMRS configuration includes a first configuration scheme or a second configuration scheme of the DMRS of configuration type.
Optionally, the first configuration scheme and the second configuration scheme divide the resource elements RE contained in each CDM group in the same manner.
Optionally, the first configuration scheme corresponds to a frequency domain orthogonal sequence of a first length, and the second configuration scheme corresponds to a frequency domain orthogonal sequence of a second length.
Optionally, the first processor 902 is further configured to calculate, by using a DMRS sequence generation algorithm corresponding to the target DMRS configuration, the target DMRS sequence.
Optionally, the DMRS sequence generating algorithm is a DMRS symbol of the DMRS port calculated by using a frequency domain orthogonal sequence, a time domain orthogonal sequence, and a DMRS symbol sequence.
Optionally, when the target DMRS configuration indicates that the frequency domain orthogonal sequence of the first length is adopted on the RE of each CDM group, the DMRS sequence generation algorithm is:
k＝6n+k′+Δ；
k′＝0,1；
wherein ,
representing DMRS ports mapped on subcarrier k, OFDM symbol l>
DMRS symbols of (a); μ denotes a subcarrier spacing configuration; />
For the starting OFDM symbol position carrying DMRS, l' =0, 1; n is a natural number, j=0, 1, &..v-1, v is the total number of DMRS ports; w (w) f (k') represents a frequency domain orthogonal sequence; w (w) t (l') represents a time domain orthogonal sequence; r (2n+k') represents a DMRS symbol sequence; delta represents the subcarrier offset.
Optionally, when the target DMRS configuration indicates that the frequency domain orthogonal sequences of the second length are adopted on REs of each CDM group, the DMRS sequence generation algorithm is:
k′＝0,1；k″＝0,1,2,3；
wherein ,
representing DMRS ports mapped on subcarrier k, OFDM symbol l>
DMRS symbols of (a); μ denotes a subcarrier spacing configuration; />
For the starting OFDM symbol position carrying DMRS, l' =0, 1; n is a natural number; j=0, 1, &.. v-1, v is the total number of DMRS ports; w (w) f (k ") represents a frequency domain orthogonal sequence; w (w) t (l') represents a time domain orthogonal sequence; r (2n+k ") represents a DMRS symbol sequence; delta represents the subcarrier offset.
Optionally, the first transceiver 901 is further configured to receive second indication information from a network device, where the second indication information is used to indicate a target DMRS port;
the first processor 902 is further configured to determine, according to the target DMRS port, a target DMRS symbol from the target DMRS sequence;
the first processor 902 is further configured to map the target DMRS symbol on an RE corresponding to the target DMRS port, and send a DMRS to the network device;
in the embodiment of the invention, the terminal determines the target DMRS configuration according to the first indication information sent by the network equipment, and generates the target DMRS sequence according to the target DMRS configuration, so that the port number of the DMRS can meet the requirement of a user.
Referring to fig. 10, an embodiment of the present invention provides a network device 1000, including: a second transceiver 1001 and a second processor 1002;
the second transceiver 1001 is configured to send first indication information to a terminal, where the first indication information is used to indicate a target DMRS configuration used by the terminal, and the terminal generates a target DMRS sequence according to the target DMRS configuration.
Wherein the target DMRS configuration includes a first configuration scheme or a second configuration scheme of the DMRS of configuration type.
Optionally, the first configuration scheme and the second configuration scheme divide the resource elements RE contained in each CDM group in the same manner.
Optionally, the first configuration scheme corresponds to a frequency domain orthogonal sequence of a first length, and the second configuration scheme corresponds to a frequency domain orthogonal sequence of a second length.
Optionally, the second transceiver 1001 is further configured to send second indication information to the terminal, where the second indication information is used to indicate a target DMRS port used by the terminal, determine, by the terminal, a target DMRS symbol from the target DMRS sequence according to the target DMRS port, and map the target DMRS symbol on an RE corresponding to the target DMRS port;
the second transceiver 1001 is further configured to receive DMRS sent by the terminal.
In the embodiment of the invention, the terminal determines the target DMRS configuration according to the first indication information sent by the network equipment, and generates the target DMRS sequence according to the target DMRS configuration, so that the port number of the DMRS can meet the requirement of a user.
Referring to fig. 11, an embodiment of the present invention provides another terminal 1100, including: at least one processor 1101, a memory 1102, a user interface 1103 and at least one network interface 1104. The various components in terminal 1100 are coupled together by bus system 1105.
It is to be appreciated that bus system 1105 is used to enable connected communications between these components. The bus system 1105 includes a power bus, a control bus, and a status signal bus in addition to a data bus. But for clarity of illustration, the various buses are labeled as bus system 1105 in fig. 11.
The user interface 1103 may include, among other things, a display, keyboard, or pointing device (e.g., a mouse, trackball, touch pad, or touch screen, etc.).
It will be appreciated that memory 1102 in embodiments of the invention can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM) which acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (Double Data Rate SDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), and Direct memory bus RAM (DRRAM). The memory 1102 described in embodiments of the present invention is intended to comprise, without being limited to, these and any other suitable types of memory.
In some implementations, the memory 1102 stores the following elements, executable modules or data structures, or a subset thereof, or an extended set thereof: an operating system 11021 and application programs 11022.
The operating system 11021 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, for implementing various basic services and processing hardware-based tasks. The application 11022 includes various application programs such as a media player, a browser, and the like for implementing various application services. A program for implementing the method of the embodiment of the present invention may be included in the application program 11022.
In an embodiment of the present invention, the terminal 1100 may further include: a program stored on the memory 1102 and executable on the processor 1101, which when executed by the processor 1101, implements the steps of the method provided by embodiments of the present invention.
The method disclosed in the above embodiment of the present invention may be applied to the processor 1101 or implemented by the processor 1101. The processor 1101 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuitry in hardware in the processor 1101 or instructions in software. The processor 1101 described above may be a general purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be embodied directly in the execution of a hardware decoding processor, or in the execution of a combination of hardware and software modules in a decoding processor. The software modules may be located in a computer readable storage medium well known in the art such as random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, and the like. The computer readable storage medium is located in the memory 1102, and the processor 1101 reads information in the memory 1102 and performs the steps of the above method in combination with its hardware. In particular, the computer readable storage medium has a computer program stored thereon.
It is to be understood that the embodiments of the invention described herein may be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof. For a hardware implementation, the processing units may be implemented within one or more ASICs, DSPs, digital signal processing Devices (DSPs), programmable logic devices (Programmable Logic Device, PLDs), FPGAs, general purpose processors, controllers, microcontrollers, microprocessors, other electronic units used to perform the functions described herein, or a combination thereof.
Referring to fig. 12, an embodiment of the present invention provides another network device 1200, including: a processor 1201, a transceiver 1202, a memory 1203, and a bus interface.
The processor 1201 may be responsible for managing the bus architecture and general processing, among other things. The memory 1203 may store data used by the processor 1201 in performing operations.
In an embodiment of the present invention, the network device 1200 may further include: a program stored on the memory 1203 and executable on the processor 1201, which when executed by the processor 1201, implements the steps of the method provided by the embodiments of the present invention.
In fig. 12, a bus architecture may be comprised of any number of interconnected buses and bridges, and in particular, one or more processors represented by the processor 1201 and various circuits of memory represented by the memory 1203. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., all as are well known in the art and, therefore, further description of embodiments of the present invention will not be provided. The bus interface provides an interface. The transceiver 1202 may be a number of elements, i.e., include a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium.
The embodiment of the invention also provides a computer readable storage medium, on which a computer program is stored, which when executed by a processor, implements the processes of the above method embodiment, and can achieve the same technical effects, and in order to avoid repetition, the description is omitted here. Wherein the computer readable storage medium is selected from Read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), magnetic disk or optical disk.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus 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 apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the claims, which are to be protected by the present invention.
Claims (19)
1. A configuration method applied to a terminal, the method comprising:
receiving first indication information from a network device, wherein the first indication information is used for indicating target demodulation reference signal (DMRS) configuration used by the terminal;
generating a target DMRS sequence according to the target DMRS configuration;
wherein the target DMRS configuration includes a first configuration scheme or a second configuration scheme of DMRS of a second configuration type configuration type;
the first configuration scheme and the second configuration scheme divide the resource elements RE contained in each code division multiplexing group CDM group in the same way;
the first configuration scheme corresponds to a frequency domain orthogonal sequence of a first length, and the second configuration scheme corresponds to a frequency domain orthogonal sequence of a second length.
2. The method of claim 1, wherein the generating a target DMRS sequence from the target DMRS configuration comprises:
and calculating the target DMRS sequence through a DMRS sequence generation algorithm corresponding to the target DMRS configuration.
3. The method of claim 2, wherein the step of determining the position of the substrate comprises,
the DMRS sequence generation algorithm is used for calculating the DMRS symbols of the DMRS ports through the frequency domain orthogonal sequences, the time domain orthogonal sequences and the DMRS symbol sequences.
4. The method of claim 3, wherein the step of,
when the target DMRS is configured as the first configuration scheme, the DMRS sequence generation algorithm is:
k＝6n+k ′ +Δ；
k′＝0,1；
wherein ,
representing DMRS port +.>
DMRS symbols of (a); μ denotes a subcarrier spacing configuration; />
For the starting OFDM symbol position carrying DMRS, l' =0, 1; n is a natural number, j=0, 1, &..v-1, v is the total number of DMRS ports; w (w) f (k') represents a frequency domain orthogonal sequence; w (w) t (l') represents a time domain orthogonal sequence; r (2n+k') represents a DMRS symbol sequence; delta represents the subcarrier offset.
5. The method of claim 3, wherein the step of,
when the target DMRS is configured as the second configuration scheme, the DMRS sequence generation algorithm is:
k′＝0,1；k″＝0,1,2,3；
wherein ,
representing DMRS ports mapped on subcarrier k, OFDM symbol l>
DMRS symbols of (a); μ denotes a subcarrier spacing configuration; />
For the starting OFDM symbol position carrying DMRS, l' =0, 1; n is a natural number; j=0, 1, &.. v-1, v is the total number of DMRS ports; w (w) f (k ") represents a frequency domain orthogonal sequence; w (w) t (l') represents a time domain orthogonal sequence; r (2n+k ") represents a DMRS symbol sequence; delta represents the subcarrier offset.
6. The method of claim 1, wherein after the generating a target DMRS sequence according to the target DMRS configuration, the method further comprises:
receiving second indication information from the network device, wherein the second indication information is used for indicating a target DMRS port;
determining a target DMRS symbol from the target DMRS sequence according to the target DMRS port;
and mapping the target DMRS symbol on an RE corresponding to the target DMRS port, and sending the DMRS to the network equipment.
7. A configuration method applied to a network device, the method comprising:
transmitting first indication information to a terminal, wherein the first indication information is used for indicating target DMRS configuration used by the terminal, and generating a target DMRS sequence by the terminal according to the target DMRS configuration;
wherein the target DMRS configuration includes a first configuration scheme or a second configuration scheme of the DMRS of configuration type;
the first configuration scheme and the second configuration scheme divide the resource elements RE contained in each code division multiplexing group CDM group in the same way;
the first configuration scheme corresponds to a frequency domain orthogonal sequence of a first length, and the second configuration scheme corresponds to a frequency domain orthogonal sequence of a second length.
8. The method of claim 7, wherein after the sending the first indication information to the terminal, the method further comprises:
transmitting second indication information to the terminal, where the second indication information is used to indicate a target DMRS port used by the terminal, and the terminal determines a target DMRS symbol from the target DMRS sequence according to the target DMRS port, and maps the target DMRS symbol on an RE corresponding to the target DMRS port;
and receiving the DMRS sent by the terminal.
9. A terminal, comprising: a first transceiver and a first processor, wherein,
the first transceiver is configured to receive first indication information from a network device, where the first indication information is used to indicate a target DMRS configuration used by the terminal;
the first processor is configured to generate a target DMRS sequence according to the target DMRS configuration;
wherein the target DMRS configuration includes a first configuration scheme or a second configuration scheme of the DMRS of configuration type;
the first configuration scheme and the second configuration scheme divide the resource elements RE contained in each code division multiplexing group CDM group in the same way;
the first configuration scheme corresponds to a frequency domain orthogonal sequence of a first length, and the second configuration scheme corresponds to a frequency domain orthogonal sequence of a second length.
10. The terminal of claim 9, wherein the terminal comprises a base station,
the first processor is further configured to calculate, through a DMRS sequence generation algorithm corresponding to the target DMRS configuration, the target DMRS sequence.
11. The terminal of claim 10, wherein the terminal comprises a base station,
the DMRS sequence generation algorithm is used for calculating the DMRS symbols of the DMRS ports through the frequency domain orthogonal sequences, the time domain orthogonal sequences and the DMRS symbol sequences.
12. The terminal of claim 11, wherein the terminal comprises a base station,
when the target DMRS is configured as the first configuration scheme, the DMRS sequence generation algorithm is:
k＝6n+k′+Δ；
k′＝0,1；
wherein ,
representing DMRS ports mapped on subcarrier k, OFDM symbol l>
DMRS symbols of (a); μ denotes a subcarrier spacing configuration; />
For the starting OFDM symbol position carrying DMRS, l' =0, 1; n is a natural number, j=0, 1, &..v-1, v is the total number of DMRS ports; w (w) f (k') represents a frequency domain orthogonal sequence; w (w) t (l') represents a time domain orthogonal sequence; r (2n+k') represents a DMRS symbol sequence; delta represents the subcarrier offset.
13. The terminal of claim 11, wherein the terminal comprises a base station,
when the target DMRS is configured as the second configuration scheme, the DMRS sequence generation algorithm is:
k′＝0,1；k″＝0,1,2,3；
wherein ,
representing DMRS ports mapped on subcarrier k, OFDM symbol l>
DMRS symbols of (a); μ denotes a subcarrier spacing configuration; />
For the starting OFDM symbol position carrying DMRS, l' =0, 1; n is a natural number; j=0, 1, &.. v-1, v is the total number of DMRS ports; w (w) f (k ") represents a frequency domain orthogonal sequence; w (w) t (l') represents a time domain orthogonal sequence; r (2n+k ") represents a DMRS symbol sequence; delta represents the subcarrier offset.
14. The terminal of claim 9, wherein the terminal comprises a base station,
the first transceiver is further configured to receive second indication information from a network device, where the second indication information is used to indicate a target DMRS port;
the first processor is further configured to determine, according to the target DMRS port, a target DMRS symbol from the target DMRS sequence;
the first processor is further configured to map the target DMRS symbol on an RE corresponding to the target DMRS port, and send a DMRS to the network device.
15. A network device, comprising: a second transceiver and a second processor, wherein,
the second transceiver is configured to send first indication information to a terminal, where the first indication information is used to indicate a target DMRS configuration used by the terminal, and the terminal generates a target DMRS sequence according to the target DMRS configuration;
wherein the target DMRS configuration includes a first configuration scheme or a second configuration scheme of the DMRS of configuration type;
the first configuration scheme and the second configuration scheme divide the resource elements RE contained in each code division multiplexing group CDM group in the same way;
the first configuration scheme corresponds to a frequency domain orthogonal sequence of a first length, and the second configuration scheme corresponds to a frequency domain orthogonal sequence of a second length.
16. The network device of claim 15, wherein the network device,
the second transceiver is further configured to send second indication information to the terminal, where the second indication information is used to indicate a target DMRS port used by the terminal, and the terminal determines a target DMRS symbol from the target DMRS sequence according to the target DMRS port, and maps the target DMRS symbol on an RE corresponding to the target DMRS port;
the second transceiver is further configured to receive the DMRS sent by the terminal.
17. A terminal comprising a processor, a memory and a program stored on the memory and executable on the processor, which when executed by the processor implements the steps of the configuration method according to any one of claims 1 to 6.
18. A network device comprising a processor, a memory and a program stored on the memory and executable on the processor, which when executed by the processor implements the steps of the configuration method of any of claims 7 to 8.
19. A computer-readable storage medium, on which a computer program is stored, which computer program, when being executed by a processor, implements the steps of the configuration method according to any one of claims 1 to 6, or the steps of the configuration method according to any one of claims 7 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910010611.7A CN111416692B (en) | 2019-01-07 | 2019-01-07 | Configuration method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910010611.7A CN111416692B (en) | 2019-01-07 | 2019-01-07 | Configuration method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111416692A CN111416692A (en) | 2020-07-14 |
| CN111416692B true CN111416692B (en) | 2023-05-09 |
Family
ID=71494165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910010611.7A Active CN111416692B (en) | 2019-01-07 | 2019-01-07 | Configuration method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111416692B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114080031A (en) * | 2020-08-13 | 2022-02-22 | 华为技术有限公司 | Communication method and device |
| CN116707724A (en) * | 2022-02-24 | 2023-09-05 | 维沃移动通信有限公司 | Demodulation reference signal information determining method, indicating method and related equipment |
| WO2023186158A1 (en) * | 2022-04-02 | 2023-10-05 | 维沃移动通信有限公司 | Demodulation reference signal transmission method and apparatus, terminal, and network side device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107040354B (en) * | 2016-02-04 | 2020-10-27 | 中兴通讯股份有限公司 | Configuration method and network element of uplink DMRS (demodulation reference signal), and transmission method and device of uplink DMRS |
| CN107294682A (en) * | 2016-04-01 | 2017-10-24 | 中兴通讯股份有限公司 | DMRS sending method and device |
| CN109150472B (en) * | 2017-06-19 | 2021-03-09 | 维沃移动通信有限公司 | Sending method and receiving method of demodulation reference signal, terminal and network side equipment |
| CN108809609B (en) * | 2017-08-11 | 2019-07-09 | 华为技术有限公司 | A kind of DMRS instruction and method of reseptance, transmitting terminal and receiving end |
| CN108111283B (en) * | 2017-11-03 | 2021-12-14 | 中兴通讯股份有限公司 | Transmission method and equipment of reference signal |
-
2019
- 2019-01-07 CN CN201910010611.7A patent/CN111416692B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN111416692A (en) | 2020-07-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110661601B (en) | Positioning reference signal configuration method, network side equipment and terminal equipment | |
| US20190097779A1 (en) | Uplink control information scheduling method and wireless communications apparatus | |
| CN114339987B (en) | Transmission method and device of positioning reference signal, storage medium and terminal | |
| WO2016107430A1 (en) | Method and device for transferring uplink data | |
| CN110719643B (en) | Method and equipment for scheduling physical downlink shared channel in cross-carrier mode | |
| CN111416692B (en) | Configuration method and device | |
| CN110311764B (en) | Method for transmitting demodulation reference signal, terminal equipment and network side equipment | |
| CN109792727B (en) | Communication method, terminal and network equipment | |
| CN110351834B (en) | Transmission method of uplink transmission cancellation signaling, network side equipment and user equipment | |
| WO2017215642A1 (en) | Resource allocation method, network apparatus, and terminal apparatus | |
| CN110890948A (en) | Transmission method of demodulation reference signal, network side equipment and user equipment | |
| CN109802751B (en) | Indication method of system information type, network equipment and terminal equipment | |
| EP3648390A1 (en) | Communication method and device | |
| EP3989507A1 (en) | Sidelink rate matching and resource mapping method and device | |
| RU2728762C1 (en) | Method of transmitting information, network device and end device | |
| CN111435863B (en) | Method and apparatus for multi-transmission receiving point transmission | |
| US20190174515A1 (en) | Physical Channel Sending Method and Receiving Method, Terminal Device, and Network Device | |
| JP2022166320A (en) | Pucch transmission method, terminal, and network-side device | |
| CN111107032B (en) | Reference signal generation method, terminal equipment and network side equipment | |
| CN112654086B (en) | Resource allocation method and terminal equipment | |
| CN109150426B (en) | DCI format information transmission method, related equipment and system | |
| WO2018082365A1 (en) | Transmission control method, device, and system, and storage medium | |
| WO2019095946A1 (en) | Multi-slot transmission method and device | |
| CN113037429A (en) | Uplink control information transmission method, terminal equipment and network side equipment | |
| CN109286478B (en) | DCI format message sending method, DCI format message receiving method, related equipment and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |