CN112235087B - Demodulation reference signal configuration method, terminal and network side equipment - Google Patents
Demodulation reference signal configuration method, terminal and network side equipment Download PDFInfo
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- CN112235087B CN112235087B CN201910635821.5A CN201910635821A CN112235087B CN 112235087 B CN112235087 B CN 112235087B CN 201910635821 A CN201910635821 A CN 201910635821A CN 112235087 B CN112235087 B CN 112235087B
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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
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
Abstract
The invention provides a demodulation reference signal configuration method, a terminal and network side equipment, belonging to the technical field of wireless communication, wherein the demodulation reference signal configuration method applied to the network side equipment comprises the following steps: and sending configuration information to the terminal, wherein the configuration information is used for configuring time-frequency resources of the pre-demodulation reference signal and the additional demodulation reference signal, and the time-frequency resources of the additional demodulation reference signal occupy at least one continuous symbol in a time domain and are distributed at intervals in a frequency domain. The embodiment of the invention provides a new DMRS configuration scheme, and the additional demodulation reference signals are configured while the pre-demodulation reference signals are configured, and the additional demodulation reference signals are distributed at intervals on a frequency domain, so that the channel estimation precision can be improved through interpolation, the data transmission rate can be improved, the resource expenditure caused by the additional DMRS can be reduced, and the system performance can be improved.
Description
Technical Field
The present invention relates to the field of wireless communications technologies, and in particular, to a demodulation reference signal configuration method, a terminal, and a network side device.
Background
The fifth generation mobile communication technology (5G) -New Radio (abbreviated as NR) system uses a demodulation reference signal (Demodulation Reference Signal, abbreviated as DMRS) with a full bandwidth and a single symbol as shown in fig. 1 or a DMRS with a full bandwidth and a double symbol as shown in fig. 2 to demodulate downlink data, so as to rapidly demodulate physical downlink shared channel (Physical Downlink Shared CHannel, abbreviated as PDSCH) data in an Ultra-Reliable and Low Latency Communications, abbreviated as URLLC, scenario. When the full-bandwidth single-symbol or double-symbol DMRS is adopted, the terminal does not need to completely receive the whole time slot (slot) data, and only the demodulated first DMRS is required to sequentially demodulate the PDSCH signal of each subsequent symbol through extrapolation, so that the aim of rapidly demodulating the PDSCH data can be fulfilled. However, in a 5G NR system, this DMRS design may cause a downlink rate drop, for example, when a full-bandwidth single-symbol DMRS configuration is adopted, that is, only 1 DMRS is configured, a downlink rate drop of 20% -30% is caused in a outfield test. The reason is that when the DMRS of the 5G NR is configured as 1 DMRS, an extrapolation algorithm is required to demodulate the PDSCH, and compared with the method that the channel information is acquired between two DMRS by adopting an interpolation algorithm, the performance is greatly reduced. Under a more complex channel environment such as a large-bandwidth and large-scale antenna, for example, in an enhanced mobile broadband (Enhance Mobile Broadband, abbreviated as EMBB) scene, the channel estimation of the symbol bit of the PDSCH data domain is inaccurate, so that the uplink and downlink performance of the 5G NR system is more degraded.
Therefore, in the current implementation of commercial terminals under the common scene of the outfield test, all terminals adopt an additional (additional) DMRS applied to the high-speed scene for PDSCH channel demodulation, that is, channel information of a middle symbol (symbol) PDSCH data domain is obtained by two DMRS interpolation modes, the reference signal distribution mode is as shown in fig. 3, the terminal rate after the additional DMRS is added is increased to a normal level, but the resource overhead is 8%, if the rate is calculated according to the full bandwidth limit rate, the rate occupies about 120Mbps of the 100M bandwidth, and the higher overhead causes a larger reduction of the system performance.
Disclosure of Invention
In view of this, the present invention provides a demodulation reference signal configuration method, a terminal and a network side device, which are used for solving the problems that the downlink rate is reduced and higher resource overhead is caused after adding additional DMRS in the current 1 DMRS configuration.
In order to solve the above technical problem, in a first aspect, the present invention provides a demodulation reference signal configuration method, which is applied to a network side device, and includes:
and sending configuration information to the terminal, wherein the configuration information is used for configuring time-frequency resources of the pre-demodulation reference signal and the additional demodulation reference signal, and the time-frequency resources of the additional demodulation reference signal occupy at least one continuous symbol in a time domain and are distributed at intervals in a frequency domain.
Optionally, the configuration information includes the number of resource blocks or the number of resource elements spaced in the frequency domain by the additional demodulation reference signal.
Optionally, the configuration information is sent through radio resource control information.
Optionally, the configuration information is further used for configuring ports corresponding to the pre-demodulation reference signal and the additional demodulation reference signal, where the number of ports corresponding to the pre-demodulation reference signal and the additional demodulation reference signal is the same, and the positions of the ports in the frequency domain are corresponding.
Optionally, the time-frequency resource of the additional demodulation reference signal includes a plurality of resource groups distributed at intervals, each of the resource groups is distributed according to one of frequency division, time division and time-frequency division, the frequency division distribution is that each of the resource groups occupies a plurality of continuous resource elements or resource blocks in a frequency domain and occupies only one symbol in a time domain, the time division distribution is that each of the resource groups occupies a plurality of continuous symbols in a time domain and occupies only one of the continuous resource elements or resource blocks in the frequency domain, and the time-frequency distribution is that each of the resource groups occupies a plurality of continuous symbols in the time domain and occupies a plurality of continuous resource elements or resource blocks in the frequency domain.
In a second aspect, the present invention further provides a demodulation reference signal configuration method, applied to a terminal, including:
and receiving configuration information sent by network side equipment, wherein the configuration information is used for configuring time-frequency resources of a pre-demodulation reference signal and an additional demodulation reference signal, and the time-frequency resources of the additional demodulation reference signal occupy at least one continuous symbol in a time domain and are distributed at intervals in a frequency domain.
Optionally, the configuration information includes the number of resource blocks or the number of resource elements spaced in the frequency domain by the additional demodulation reference signal.
Optionally, the configuration information is sent through radio resource control information.
Optionally, the configuration information is further used for configuring ports corresponding to the pre-demodulation reference signal and the additional demodulation reference signal, where the number of ports corresponding to the pre-demodulation reference signal and the additional demodulation reference signal is the same, and the positions of the ports in the frequency domain are corresponding.
Optionally, the time-frequency resource of the additional demodulation reference signal includes a plurality of resource groups distributed at intervals, each of the resource groups is distributed according to one of frequency division, time division and time-frequency division, the frequency division distribution is that each of the resource groups occupies a plurality of continuous resource elements or resource blocks in a frequency domain and occupies only one symbol in a time domain, the time division distribution is that each of the resource groups occupies a plurality of continuous symbols in a time domain and occupies only one of the continuous resource elements or resource blocks in the frequency domain, and the time-frequency distribution is that each of the resource groups occupies a plurality of continuous symbols in the time domain and occupies a plurality of continuous resource elements or resource blocks in the frequency domain.
In a third aspect, the present invention further provides a network side device, including:
the configuration module is used for sending configuration information to the terminal, the configuration information is used for configuring time-frequency resources of the pre-demodulation reference signal and the additional demodulation reference signal, and the time-frequency resources of the additional demodulation reference signal occupy at least one continuous symbol in a time domain and are distributed at intervals in a frequency domain.
Optionally, the configuration information includes the number of resource blocks or the number of resource elements spaced in the frequency domain by the additional demodulation reference signal.
Optionally, the configuration information is sent through radio resource control information.
Optionally, the configuration information is further used for configuring ports corresponding to the pre-demodulation reference signal and the additional demodulation reference signal, where the number of ports corresponding to the pre-demodulation reference signal and the additional demodulation reference signal is the same, and the positions of the ports in the frequency domain are corresponding.
Optionally, the time-frequency resource of the additional demodulation reference signal includes a plurality of resource groups distributed at intervals, each of the resource groups is distributed according to one of frequency division, time division and time-frequency division, the frequency division distribution is that each of the resource groups occupies a plurality of continuous resource elements or resource blocks in a frequency domain and occupies only one symbol in a time domain, the time division distribution is that each of the resource groups occupies a plurality of continuous symbols in a time domain and occupies only one of the continuous resource elements or resource blocks in the frequency domain, and the time-frequency distribution is that each of the resource groups occupies a plurality of continuous symbols in the time domain and occupies a plurality of continuous resource elements or resource blocks in the frequency domain.
In a fourth aspect, the present invention further provides a terminal, including:
the receiving module is used for receiving configuration information sent by the network side equipment, the configuration information is used for configuring time-frequency resources of the pre-demodulation reference signal and the additional demodulation reference signal, and the time-frequency resources of the additional demodulation reference signal occupy at least one continuous symbol in a time domain and are distributed at intervals in a frequency domain.
Optionally, the configuration information includes the number of resource blocks or the number of resource elements spaced in the frequency domain by the additional demodulation reference signal.
Optionally, the configuration information is sent through radio resource control information.
Optionally, the configuration information is further used for configuring ports corresponding to the pre-demodulation reference signal and the additional demodulation reference signal, where the number of ports corresponding to the pre-demodulation reference signal and the additional demodulation reference signal is the same, and the positions of the ports in the frequency domain are corresponding.
Optionally, the time-frequency resource of the additional demodulation reference signal includes a plurality of resource groups distributed at intervals, each of the resource groups is distributed according to one of frequency division, time division and time-frequency division, the frequency division distribution is that each of the resource groups occupies a plurality of continuous resource elements or resource blocks in a frequency domain and occupies only one symbol in a time domain, the time division distribution is that each of the resource groups occupies a plurality of continuous symbols in a time domain and occupies only one of the continuous resource elements or resource blocks in the frequency domain, and the time-frequency distribution is that each of the resource groups occupies a plurality of continuous symbols in the time domain and occupies a plurality of continuous resource elements or resource blocks in the frequency domain.
In a fifth aspect, the present invention further provides a network side device, including: a transceiver and a processor;
the transceiver is configured to send configuration information to a terminal, where the configuration information is used to configure time-frequency resources of a pre-demodulation reference signal and an additional demodulation reference signal, and the time-frequency resources of the additional demodulation reference signal occupy at least one continuous symbol in a time domain and are distributed at intervals in a frequency domain.
Optionally, the configuration information includes the number of resource blocks or the number of resource elements spaced in the frequency domain by the additional demodulation reference signal.
Optionally, the configuration information is sent through radio resource control information.
Optionally, the configuration information is further used for configuring ports corresponding to the pre-demodulation reference signal and the additional demodulation reference signal, where the number of ports corresponding to the pre-demodulation reference signal and the additional demodulation reference signal is the same, and the positions of the ports in the frequency domain are corresponding.
Optionally, the time-frequency resource of the additional demodulation reference signal includes a plurality of resource groups distributed at intervals, each of the resource groups is distributed according to one of frequency division, time division and time-frequency division, the frequency division distribution is that each of the resource groups occupies a plurality of continuous resource elements or resource blocks in a frequency domain and occupies only one symbol in a time domain, the time division distribution is that each of the resource groups occupies a plurality of continuous symbols in a time domain and occupies only one of the continuous resource elements or resource blocks in the frequency domain, and the time-frequency distribution is that each of the resource groups occupies a plurality of continuous symbols in the time domain and occupies a plurality of continuous resource elements or resource blocks in the frequency domain.
In a sixth aspect, the present invention further provides a terminal, including: a transceiver and a processor;
the transceiver is configured to receive configuration information sent by a network side device, where the configuration information is used to configure time-frequency resources of a pre-demodulation reference signal and an additional demodulation reference signal, and the time-frequency resources of the additional demodulation reference signal occupy at least one continuous symbol in a time domain and are distributed at intervals in a frequency domain.
Optionally, the configuration information includes the number of resource blocks or the number of resource elements spaced in the frequency domain by the additional demodulation reference signal.
Optionally, the configuration information is sent through radio resource control information.
Optionally, the configuration information is further used for configuring ports corresponding to the pre-demodulation reference signal and the additional demodulation reference signal, where the number of ports corresponding to the pre-demodulation reference signal and the additional demodulation reference signal is the same, and the positions of the ports in the frequency domain are corresponding.
Optionally, the time-frequency resource of the additional demodulation reference signal includes a plurality of resource groups distributed at intervals, each of the resource groups is distributed according to one of frequency division, time division and time-frequency division, the frequency division distribution is that each of the resource groups occupies a plurality of continuous resource elements or resource blocks in a frequency domain and occupies only one symbol in a time domain, the time division distribution is that each of the resource groups occupies a plurality of continuous symbols in a time domain and occupies only one of the continuous resource elements or resource blocks in the frequency domain, and the time-frequency distribution is that each of the resource groups occupies a plurality of continuous symbols in the time domain and occupies a plurality of continuous resource elements or resource blocks in the frequency domain.
In a seventh aspect, the present invention further provides a network side device, including a memory, a processor, and a computer program stored on the memory and executable on the processor; the processor implements any one of the above demodulation reference signal configuration methods applied to the network side device when executing the computer program.
In an eighth aspect, the present invention also provides a terminal comprising a memory, a processor and a computer program stored on the memory and executable on the processor; the processor, when executing the computer program, implements any one of the above demodulation reference signal configuration methods applied to the terminal.
In a ninth aspect, the present invention also provides a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of any of the demodulation reference signal configuration methods described above.
The technical scheme of the invention has the following beneficial effects:
the embodiment of the invention provides a new DMRS configuration scheme, wherein the pre-demodulation reference signal is configured, and meanwhile, the additional demodulation reference signal is also configured, and the additional demodulation reference signal is distributed at intervals on a frequency domain, namely, the additional demodulation reference signal is not distributed on the whole bandwidth of a data domain, but is sparsely distributed on the bandwidth of the data domain, so that the channel estimation precision can be improved through interpolation, the data transmission rate can be improved, the resource overhead caused by the additional DMRS can be reduced, and the system performance can be improved. The DMRS configuration scheme provided by the embodiment of the invention is mainly applicable to medium-low speed common scenes.
Drawings
Fig. 1 is a schematic diagram of a distribution of demodulation reference signals of a full bandwidth single symbol;
fig. 2 is a schematic diagram of a distribution of demodulation reference signals of full bandwidth dual symbols;
fig. 3 is a schematic diagram of a demodulation reference signal distribution including a preamble demodulation reference signal and an additional demodulation reference signal;
fig. 4 is a flowchart of a demodulation reference signal configuration method according to a first embodiment of the present invention;
fig. 5 is a schematic diagram of a distribution of additional demodulation reference signals of a frequency division in an embodiment of the present invention;
fig. 6 is a schematic diagram of a distribution of additional demodulation reference signals for time division in an embodiment of the present invention;
fig. 7 is a schematic diagram of a distribution of additional demodulation reference signals of a time-frequency division in an embodiment of the present invention;
fig. 8 is a flow chart of a demodulation reference signal configuration method in the second embodiment of the invention;
fig. 9 is a schematic structural diagram of a network side device in a third embodiment of the present invention;
fig. 10 is a schematic structural diagram of a terminal according to a fourth embodiment of the present invention;
fig. 11 is a schematic structural diagram of a network side device in a fifth embodiment of the present invention;
fig. 12 is a schematic structural diagram of a terminal in a sixth embodiment of the present invention;
Fig. 13 is a schematic structural diagram of a network side device in a seventh embodiment of the present invention;
fig. 14 is a schematic structural diagram of a terminal according to an eighth embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which are obtained by a person skilled in the art based on the described embodiments of the invention, fall within the scope of protection of the invention.
At present, the additional DMRS is mainly applied to a high-speed scene, because in the high-speed scene, the channel changes rapidly, and the frequency offset tracking performance and the demodulation performance need to be improved by encrypting the DMRS. However, in the normal scene of medium and low speed, in order to improve the channel estimation accuracy and further improve the transmission rate, additional DMRS may be added, so that the channel estimation accuracy may be improved by interpolating between two DMRS. In view of the technical problem that adding DMRS causes higher resource overhead, in a normal scene with medium and low speed, the channel change is slower, and the channel state of the data domain does not need to be acquired by configuring an additional DMRS with full bandwidth like a high-speed scene. Therefore, the present invention proposes a new DMRS configuration scheme, which is specifically described below.
Referring to fig. 4, fig. 4 is a flowchart of a demodulation reference signal configuration method according to a first embodiment of the present invention, where the method is applied to a network side device, and includes the following steps:
step 41: the network side equipment sends configuration information to the terminal, wherein the configuration information is used for configuring time-frequency resources of a pre-demodulation reference signal and an additional demodulation reference signal, and the time-frequency resources of the additional demodulation reference signal occupy at least one continuous symbol in a time domain and are distributed at intervals in a frequency domain.
That is, the time-frequency resources of the additional demodulation reference signal include a plurality of Resource groups discontinuous in the frequency domain, each of which occupies one or more continuous symbols in the time domain, one or more continuous Resource Elements (REs) or Resource Blocks (RBs) in the frequency domain.
The embodiment of the invention provides a new DMRS configuration scheme, wherein the pre-demodulation reference signal is configured, and meanwhile, the additional demodulation reference signal is also configured, and the additional demodulation reference signal is distributed at intervals on a frequency domain, namely, the additional demodulation reference signal is not distributed on the whole bandwidth of a data domain, but is sparsely distributed on the bandwidth of the data domain, so that the channel estimation precision can be improved through interpolation, the data transmission rate can be improved, the resource overhead caused by the additional DMRS can be reduced, and the system performance can be improved. The DMRS configuration scheme provided by the embodiment of the invention is mainly suitable for medium-low-speed common scenes, such as EMBB scenes.
It should be noted that, the DMRS configuration method provided by the embodiment of the present invention may be applicable to not only downlink DMRS but also uplink DMRS, which is not limited herein.
The above demodulation reference signal configuration method is exemplified as follows.
Specifically, in some embodiments, the configuration information may explicitly include time-frequency resource information of the pre-demodulation reference signal and the additional demodulation reference signal. In other embodiments, the pre-demodulation reference signal and the time-frequency resource information of the additional demodulation reference signal may be implicitly configured, for example, the terminal and the network side device may also agree on several pre-demodulation reference signals and/or several additional demodulation reference signals in advance, so that when the network side device issues DMRS configuration information to the terminal, only the identifier information of one of the pre-demodulation reference signals may be required to be issued, the terminal may obtain the time-frequency resource information of the pre-demodulation reference signal, only the identifier information of one of the additional demodulation reference signals may be required to be issued, and the terminal may obtain the time-frequency resource information of the additional demodulation reference signal. Of course, the time-frequency resource information of the pre-demodulation reference signal and the additional demodulation reference signal may also be configured by other implicit configuration manners, which is not limited herein.
Optionally, the configuration information includes the number of resource blocks or the number of resource elements spaced in the frequency domain by the additional demodulation reference signal.
In the embodiment of the invention, the additional demodulation reference signals can be uniformly distributed on the bandwidth of the data domain by configuring the number of the resource blocks or the number of the resource particles which are spaced on the frequency domain by the additional demodulation reference signals.
In addition, the network side device can also adjust the time domain interval between the pre-demodulation reference signal and the additional demodulation reference signal so that all the demodulation reference signals are uniformly distributed on the time-frequency resource of the data domain to obtain the channel state information of different symbols.
Of course, in other alternative embodiments, the frequency domain interval between two adjacent resource groups of the time-frequency resource of the additional demodulation reference signal may also be different.
Optionally, the configuration information is sent via radio resource control information (Radio Resource Control, abbreviated RRC). Specifically, the configuration information may be a DMRS downlink configuration (DMRS-downlink config) message or a DMRS uplink configuration (DMRS-uplink config) message in the RRC message. Or the number of the resource blocks or the number of the resource elements of the additional demodulation reference signal, which are spaced on the frequency domain, is carried by a DMRS-downlinkConfig message or a DMRS-UplinkConfig message in the RRC message.
Optionally, the configuration information is further used for configuring ports corresponding to the pre-demodulation reference signal and the additional demodulation reference signal, where the number of ports corresponding to the pre-demodulation reference signal and the additional demodulation reference signal is the same, and the positions of the ports in the frequency domain are corresponding.
In the embodiment of the invention, the number of the ports corresponding to the pre-demodulation reference signals and the additional demodulation reference signals is configured to be the same, and the positions of the frequency domains of the ports are corresponding, so that channel estimation of different ports and channel interpolation of different ports can be obtained.
Optionally, the time-frequency resources of the additional demodulation reference signal include a plurality of resource groups distributed at intervals, and each of the resource groups is distributed according to one of frequency division, time division and time-frequency division. Specifically, the frequency division distribution manner is that each of the resource groups occupies a plurality of continuous resource elements or resource blocks in a frequency domain, occupies only one symbol in a time domain, for example, the additional demodulation reference signal shown in fig. 5 occupies only the 8 th symbol in one slot; the time division distribution manner is that each resource group occupies a plurality of continuous symbols in a time domain, and occupies only one resource element or resource block in a frequency domain, for example, an additional demodulation reference signal shown in fig. 6, and each resource group occupies only the 0 th subcarrier in one RB; the time-frequency distribution manner is that each of the resource groups occupies a plurality of continuous symbols in a time domain and occupies a plurality of continuous resource elements or resource blocks in a frequency domain, such as the additional demodulation reference signals shown in fig. 7, and each of the resource groups occupies the 7 th and 8 th symbols in one slot and the 0 th and 1 st subcarriers in one RB.
In the embodiment of the invention, the additional demodulation reference signals are distributed in frequency division, so that the channel state information can be rapidly acquired to demodulate the data information; the additional demodulation reference signals are distributed in a time division mode and can be used for obtaining frequency offset estimation.
Referring to fig. 8, fig. 8 is a flowchart of a demodulation reference signal configuration method according to a second embodiment of the present invention, where the method is applied to a terminal and includes the following steps:
step 81: the terminal receives configuration information sent by network side equipment, wherein the configuration information is used for configuring time-frequency resources of a pre-demodulation reference signal and an additional demodulation reference signal, and the time-frequency resources of the additional demodulation reference signal occupy at least one continuous symbol in a time domain and are distributed at intervals in a frequency domain.
The embodiment of the invention provides a new DMRS configuration scheme, wherein the pre-demodulation reference signal is configured, and meanwhile, the additional demodulation reference signal is also configured, and the additional demodulation reference signal is distributed at intervals on a frequency domain, namely, the additional demodulation reference signal is not distributed on the whole bandwidth of a data domain, but is sparsely distributed on the bandwidth of the data domain, so that the channel estimation precision can be improved through interpolation, the data transmission rate can be improved, the resource overhead caused by the additional DMRS can be reduced, and the system performance can be improved. The DMRS configuration scheme provided by the embodiment of the invention is mainly applicable to medium-low speed common scenes.
Optionally, the configuration information includes the number of resource blocks or the number of resource elements spaced in the frequency domain by the additional demodulation reference signal.
Optionally, the configuration information is sent through radio resource control information.
Optionally, the configuration information is further used for configuring ports corresponding to the pre-demodulation reference signal and the additional demodulation reference signal, where the number of ports corresponding to the pre-demodulation reference signal and the additional demodulation reference signal is the same, and the positions of the ports in the frequency domain are corresponding.
Optionally, the time-frequency resource of the additional demodulation reference signal includes a plurality of resource groups distributed at intervals, each of the resource groups is distributed according to one of frequency division, time division and time-frequency division, the frequency division distribution is that each of the resource groups occupies a plurality of continuous resource elements or resource blocks in a frequency domain and occupies only one symbol in a time domain, the time division distribution is that each of the resource groups occupies a plurality of continuous symbols in a time domain and occupies only one of the continuous resource elements or resource blocks in the frequency domain, and the time-frequency distribution is that each of the resource groups occupies a plurality of continuous symbols in the time domain and occupies a plurality of continuous resource elements or resource blocks in the frequency domain.
The embodiment of the present invention provides a technical solution corresponding to the first embodiment and having the same inventive concept, and can achieve the same technical effects, and the detailed description thereof will not be repeated herein with reference to the first embodiment.
Referring to fig. 9, fig. 9 is a schematic structural diagram of a network side device according to a third embodiment of the present invention, where the network side device 90 includes:
a configuration module 91, configured to send configuration information to a terminal, where the configuration information is used to configure time-frequency resources of a pre-demodulation reference signal and an additional demodulation reference signal, where the time-frequency resources of the additional demodulation reference signal occupy at least one continuous symbol in a time domain and are distributed at intervals in a frequency domain.
The embodiment of the invention provides a new DMRS configuration scheme, wherein the pre-demodulation reference signal is configured, and meanwhile, the additional demodulation reference signal is also configured, and the additional demodulation reference signal is distributed at intervals on a frequency domain, namely, the additional demodulation reference signal is not distributed on the whole bandwidth of a data domain, but is sparsely distributed on the bandwidth of the data domain, so that the channel estimation precision can be improved through interpolation, the data transmission rate can be improved, the resource overhead caused by the additional DMRS can be reduced, and the system performance can be improved. The DMRS configuration scheme provided by the embodiment of the invention is mainly applicable to medium-low speed common scenes.
Optionally, the configuration information includes the number of resource blocks or the number of resource elements spaced in the frequency domain by the additional demodulation reference signal.
Optionally, the configuration information is sent through radio resource control information.
Optionally, the configuration information is further used for configuring ports corresponding to the pre-demodulation reference signal and the additional demodulation reference signal, where the number of ports corresponding to the pre-demodulation reference signal and the additional demodulation reference signal is the same, and the positions of the ports in the frequency domain are corresponding.
Optionally, the time-frequency resource of the additional demodulation reference signal includes a plurality of resource groups distributed at intervals, each of the resource groups is distributed according to one of frequency division, time division and time-frequency division, the frequency division distribution is that each of the resource groups occupies a plurality of continuous resource elements or resource blocks in a frequency domain and occupies only one symbol in a time domain, the time division distribution is that each of the resource groups occupies a plurality of continuous symbols in a time domain and occupies only one of the continuous resource elements or resource blocks in the frequency domain, and the time-frequency distribution is that each of the resource groups occupies a plurality of continuous symbols in the time domain and occupies a plurality of continuous resource elements or resource blocks in the frequency domain.
The embodiment of the present invention is a product embodiment corresponding to the first embodiment of the above method, so that the detailed description thereof will be omitted herein.
Referring to fig. 10, fig. 10 is a schematic structural diagram of a terminal according to a fourth embodiment of the present invention, where the terminal 100 includes:
the receiving module 101 is configured to receive configuration information sent by a network side device, where the configuration information is used to configure time-frequency resources of a pre-demodulation reference signal and an additional demodulation reference signal, and the time-frequency resources of the additional demodulation reference signal occupy at least one continuous symbol in a time domain and are distributed at intervals in a frequency domain.
The embodiment of the invention provides a new DMRS configuration scheme, wherein the pre-demodulation reference signal is configured, and meanwhile, the additional demodulation reference signal is also configured, and the additional demodulation reference signal is distributed at intervals on a frequency domain, namely, the additional demodulation reference signal is not distributed on the whole bandwidth of a data domain, but is sparsely distributed on the bandwidth of the data domain, so that the channel estimation precision can be improved through interpolation, the data transmission rate can be improved, the resource overhead caused by the additional DMRS can be reduced, and the system performance can be improved. The DMRS configuration scheme provided by the embodiment of the invention is mainly applicable to medium-low speed common scenes.
Optionally, the configuration information includes the number of resource blocks or the number of resource elements spaced in the frequency domain by the additional demodulation reference signal.
Optionally, the configuration information is sent through radio resource control information.
Optionally, the configuration information is further used for configuring ports corresponding to the pre-demodulation reference signal and the additional demodulation reference signal, where the number of ports corresponding to the pre-demodulation reference signal and the additional demodulation reference signal is the same, and the positions of the ports in the frequency domain are corresponding.
Optionally, the time-frequency resource of the additional demodulation reference signal includes a plurality of resource groups distributed at intervals, each of the resource groups is distributed according to one of frequency division, time division and time-frequency division, the frequency division distribution is that each of the resource groups occupies a plurality of continuous resource elements or resource blocks in a frequency domain and occupies only one symbol in a time domain, the time division distribution is that each of the resource groups occupies a plurality of continuous symbols in a time domain and occupies only one of the continuous resource elements or resource blocks in the frequency domain, and the time-frequency distribution is that each of the resource groups occupies a plurality of continuous symbols in the time domain and occupies a plurality of continuous resource elements or resource blocks in the frequency domain.
The embodiment of the present invention is a product embodiment corresponding to the second embodiment of the method, so that the description is omitted herein, and reference is made to the second embodiment in detail.
Referring to fig. 11, fig. 11 is a schematic structural diagram of a network side device according to a fifth embodiment of the present invention, where the network side device 110 includes: a transceiver 111 and a processor 112;
the transceiver 111 is configured to send configuration information to a terminal, where the configuration information is used to configure time-frequency resources of a pre-demodulation reference signal and an additional demodulation reference signal, and the time-frequency resources of the additional demodulation reference signal occupy at least one continuous symbol in a time domain and are distributed at intervals in a frequency domain.
The embodiment of the invention provides a new DMRS configuration scheme, wherein the pre-demodulation reference signal is configured, and meanwhile, the additional demodulation reference signal is also configured, and the additional demodulation reference signal is distributed at intervals on a frequency domain, namely, the additional demodulation reference signal is not distributed on the whole bandwidth of a data domain, but is sparsely distributed on the bandwidth of the data domain, so that the channel estimation precision can be improved through interpolation, the data transmission rate can be improved, the resource overhead caused by the additional DMRS can be reduced, and the system performance can be improved. The DMRS configuration scheme provided by the embodiment of the invention is mainly applicable to medium-low speed common scenes.
Optionally, the configuration information includes the number of resource blocks or the number of resource elements spaced in the frequency domain by the additional demodulation reference signal.
Optionally, the configuration information is sent through radio resource control information.
Optionally, the configuration information is further used for configuring ports corresponding to the pre-demodulation reference signal and the additional demodulation reference signal, where the number of ports corresponding to the pre-demodulation reference signal and the additional demodulation reference signal is the same, and the positions of the ports in the frequency domain are corresponding.
Optionally, the time-frequency resource of the additional demodulation reference signal includes a plurality of resource groups distributed at intervals, each of the resource groups is distributed according to one of frequency division, time division and time-frequency division, the frequency division distribution is that each of the resource groups occupies a plurality of continuous resource elements or resource blocks in a frequency domain and occupies only one symbol in a time domain, the time division distribution is that each of the resource groups occupies a plurality of continuous symbols in a time domain and occupies only one of the continuous resource elements or resource blocks in the frequency domain, and the time-frequency distribution is that each of the resource groups occupies a plurality of continuous symbols in the time domain and occupies a plurality of continuous resource elements or resource blocks in the frequency domain.
The embodiment of the present invention is a product embodiment corresponding to the first embodiment of the above method, so that the detailed description thereof will be omitted herein.
Referring to fig. 12, fig. 12 is a schematic structural diagram of a terminal according to a sixth embodiment of the present invention, where the terminal 120 includes: a transceiver 121 and a processor 122;
the transceiver 121 is configured to receive configuration information sent by a network side device, where the configuration information is used to configure time-frequency resources of a pre-demodulation reference signal and an additional demodulation reference signal, and the time-frequency resources of the additional demodulation reference signal occupy at least one continuous symbol in a time domain and are distributed at intervals in a frequency domain.
The embodiment of the invention provides a new DMRS configuration scheme, wherein the pre-demodulation reference signal is configured, and meanwhile, the additional demodulation reference signal is also configured, and the additional demodulation reference signal is distributed at intervals on a frequency domain, namely, the additional demodulation reference signal is not distributed on the whole bandwidth of a data domain, but is sparsely distributed on the bandwidth of the data domain, so that the channel estimation precision can be improved through interpolation, the data transmission rate can be improved, the resource overhead caused by the additional DMRS can be reduced, and the system performance can be improved. The DMRS configuration scheme provided by the embodiment of the invention is mainly applicable to medium-low speed common scenes.
Optionally, the configuration information includes the number of resource blocks or the number of resource elements spaced in the frequency domain by the additional demodulation reference signal.
Optionally, the configuration information is sent through radio resource control information.
Optionally, the configuration information is further used for configuring ports corresponding to the pre-demodulation reference signal and the additional demodulation reference signal, where the number of ports corresponding to the pre-demodulation reference signal and the additional demodulation reference signal is the same, and the positions of the ports in the frequency domain are corresponding.
Optionally, the time-frequency resource of the additional demodulation reference signal includes a plurality of resource groups distributed at intervals, each of the resource groups is distributed according to one of frequency division, time division and time-frequency division, the frequency division distribution is that each of the resource groups occupies a plurality of continuous resource elements or resource blocks in a frequency domain and occupies only one symbol in a time domain, the time division distribution is that each of the resource groups occupies a plurality of continuous symbols in a time domain and occupies only one of the continuous resource elements or resource blocks in the frequency domain, and the time-frequency distribution is that each of the resource groups occupies a plurality of continuous symbols in the time domain and occupies a plurality of continuous resource elements or resource blocks in the frequency domain.
The embodiment of the present invention is a product embodiment corresponding to the second embodiment of the method, so that the description is omitted herein, and reference is made to the second embodiment in detail.
Referring to fig. 13, fig. 13 is a schematic structural diagram of a network side device according to a seventh embodiment of the present invention, where the network side device 130 includes a processor 131, a memory 132, and a computer program stored in the memory 132 and capable of running on the processor 131; the processor 131, when executing the computer program, performs the following steps:
and sending configuration information to the terminal, wherein the configuration information is used for configuring time-frequency resources of the pre-demodulation reference signal and the additional demodulation reference signal, and the time-frequency resources of the additional demodulation reference signal occupy at least one continuous symbol in a time domain and are distributed at intervals in a frequency domain.
The embodiment of the invention provides a new DMRS configuration scheme, wherein the pre-demodulation reference signal is configured, and meanwhile, the additional demodulation reference signal is also configured, and the additional demodulation reference signal is distributed at intervals on a frequency domain, namely, the additional demodulation reference signal is not distributed on the whole bandwidth of a data domain, but is sparsely distributed on the bandwidth of the data domain, so that the channel estimation precision can be improved through interpolation, the data transmission rate can be improved, the resource overhead caused by the additional DMRS can be reduced, and the system performance can be improved. The DMRS configuration scheme provided by the embodiment of the invention is mainly applicable to medium-low speed common scenes.
Optionally, the configuration information includes the number of resource blocks or the number of resource elements spaced in the frequency domain by the additional demodulation reference signal.
Optionally, the configuration information is sent through radio resource control information.
Optionally, the configuration information is further used for configuring ports corresponding to the pre-demodulation reference signal and the additional demodulation reference signal, where the number of ports corresponding to the pre-demodulation reference signal and the additional demodulation reference signal is the same, and the positions of the ports in the frequency domain are corresponding.
Optionally, the time-frequency resource of the additional demodulation reference signal includes a plurality of resource groups distributed at intervals, each of the resource groups is distributed according to one of frequency division, time division and time-frequency division, the frequency division distribution is that each of the resource groups occupies a plurality of continuous resource elements or resource blocks in a frequency domain and occupies only one symbol in a time domain, the time division distribution is that each of the resource groups occupies a plurality of continuous symbols in a time domain and occupies only one of the continuous resource elements or resource blocks in the frequency domain, and the time-frequency distribution is that each of the resource groups occupies a plurality of continuous symbols in the time domain and occupies a plurality of continuous resource elements or resource blocks in the frequency domain.
The specific working process of the embodiment of the present invention is the same as that of the first embodiment of the method, so that the detailed description thereof will be omitted herein.
Referring to fig. 14, fig. 14 is a schematic structural diagram of a terminal according to an eighth embodiment of the present invention, where the terminal 140 includes a processor 141, a memory 142, and a computer program stored in the memory 142 and executable on the processor 141; the processor 141, when executing the computer program, performs the following steps:
and receiving configuration information sent by network side equipment, wherein the configuration information is used for configuring time-frequency resources of a pre-demodulation reference signal and an additional demodulation reference signal, and the time-frequency resources of the additional demodulation reference signal occupy at least one continuous symbol in a time domain and are distributed at intervals in a frequency domain.
The embodiment of the invention provides a new DMRS configuration scheme, wherein the pre-demodulation reference signal is configured, and meanwhile, the additional demodulation reference signal is also configured, and the additional demodulation reference signal is distributed at intervals on a frequency domain, namely, the additional demodulation reference signal is not distributed on the whole bandwidth of a data domain, but is sparsely distributed on the bandwidth of the data domain, so that the channel estimation precision can be improved through interpolation, the data transmission rate can be improved, the resource overhead caused by the additional DMRS can be reduced, and the system performance can be improved. The DMRS configuration scheme provided by the embodiment of the invention is mainly applicable to medium-low speed common scenes.
Optionally, the configuration information includes the number of resource blocks or the number of resource elements spaced in the frequency domain by the additional demodulation reference signal.
Optionally, the configuration information is sent through radio resource control information.
Optionally, the configuration information is further used for configuring ports corresponding to the pre-demodulation reference signal and the additional demodulation reference signal, where the number of ports corresponding to the pre-demodulation reference signal and the additional demodulation reference signal is the same, and the positions of the ports in the frequency domain are corresponding.
Optionally, the time-frequency resource of the additional demodulation reference signal includes a plurality of resource groups distributed at intervals, each of the resource groups is distributed according to one of frequency division, time division and time-frequency division, the frequency division distribution is that each of the resource groups occupies a plurality of continuous resource elements or resource blocks in a frequency domain and occupies only one symbol in a time domain, the time division distribution is that each of the resource groups occupies a plurality of continuous symbols in a time domain and occupies only one of the continuous resource elements or resource blocks in the frequency domain, and the time-frequency distribution is that each of the resource groups occupies a plurality of continuous symbols in the time domain and occupies a plurality of continuous resource elements or resource blocks in the frequency domain.
The specific working process of the embodiment of the present invention is identical to that of the second embodiment of the method, so that the detailed description thereof will be omitted herein, and reference is made to the description of the method steps in the second embodiment.
A ninth embodiment of the present invention provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the demodulation reference signal configuration method of any one of the first or second embodiments. For details, reference is made to the description of the method steps in the corresponding embodiments above.
The network side device in the embodiment of the present invention may be a base station (Base Transceiver Station, BTS) in global mobile communications (Global System of Mobile communication, GSM for short) or code division multiple access (Code Division Multiple Access, CDMA for short), a base station (NodeB, NB for short) in wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA for short), an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, a relay station or access point, or a base station in a future 5G network, etc., which are not limited herein.
The terminal in the embodiment of the invention can be a wireless terminal or a wired terminal, and the wireless terminal can be a device for providing voice and/or other service data connectivity for a user, a handheld device with a wireless connection function or other processing devices connected to a wireless modem. A wireless terminal may communicate with one or more core networks via a radio access network (Radio Access Network, RAN for short), which may be mobile terminals such as mobile phones (or "cellular" phones) and computers with mobile terminals, e.g., portable, pocket, hand-held, computer-built-in or vehicle-mounted mobile devices that exchange voice and/or data with the radio access network. Such as personal communication services (Personal Communication Service, PCS) phones, cordless phones, session initiation protocol (Session Initiation Protocol, SIP) phones, wireless local loop (Wireless Local Loop, WLL) stations, personal digital assistants (Personal Digital Assistant, PDA) and the like. A wireless Terminal may also be referred to as a system, subscriber Unit (Subscriber Unit), subscriber Station (Subscriber Station), mobile Station (Mobile Station), remote Station (Remote Station), remote Terminal (Remote Terminal), access Terminal (Access Terminal), user Terminal (User Terminal), user Agent (User Agent), terminal (User Device or User Equipment), without limitation.
Such computer-readable storage media, including both non-transitory and non-transitory, removable and non-removable media, may be implemented in any method or technology for information storage. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of storage media for a computer include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium, which can be used to store information that can be accessed by a computing device.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the present invention.
Claims (13)
1. A demodulation reference signal configuration method applied to a network side device, comprising:
transmitting configuration information to a terminal, wherein the configuration information is used for configuring time-frequency resources of a pre-demodulation reference signal and an additional demodulation reference signal, and the time-frequency resources of the additional demodulation reference signal occupy at least one continuous symbol in a time domain and are distributed at intervals in a frequency domain;
the time-frequency resource of the additional demodulation reference signal comprises a plurality of resource groups which are distributed at intervals, each resource group is distributed according to one of frequency division, time division and time-frequency division, the frequency division distribution mode is that each resource group occupies a plurality of continuous resource particles or resource blocks in a frequency domain and occupies only one symbol in a time domain, the time division distribution mode is that each resource group occupies a plurality of continuous symbols in the time domain and occupies only one resource particle or resource block in the frequency domain, and the time-frequency distribution mode is that each resource group occupies a plurality of continuous symbols in the time domain and occupies a plurality of continuous resource particles or resource blocks in the frequency domain;
the configuration information is further used for configuring ports corresponding to the pre-demodulation reference signals and the additional demodulation reference signals, the number of the ports corresponding to the pre-demodulation reference signals and the additional demodulation reference signals is the same, and the positions of the ports in the frequency domain are corresponding.
2. The method of claim 1, wherein the configuration information comprises a number of resource blocks or a number of resource elements spaced apart in a frequency domain of the additional demodulation reference signal.
3. The method of claim 1, wherein the configuration information is transmitted via radio resource control information.
4. A demodulation reference signal configuration method, applied to a terminal, comprising:
receiving configuration information sent by network side equipment, wherein the configuration information is used for configuring time-frequency resources of a pre-demodulation reference signal and an additional demodulation reference signal, and the time-frequency resources of the additional demodulation reference signal occupy at least one continuous symbol in a time domain and are distributed at intervals in a frequency domain;
the time-frequency resource of the additional demodulation reference signal comprises a plurality of resource groups which are distributed at intervals, each resource group is distributed according to one of frequency division, time division and time-frequency division, the frequency division distribution mode is that each resource group occupies a plurality of continuous resource particles or resource blocks in a frequency domain and occupies only one symbol in a time domain, the time division distribution mode is that each resource group occupies a plurality of continuous symbols in the time domain and occupies only one resource particle or resource block in the frequency domain, and the time-frequency distribution mode is that each resource group occupies a plurality of continuous symbols in the time domain and occupies a plurality of continuous resource particles or resource blocks in the frequency domain;
The configuration information is further used for configuring ports corresponding to the pre-demodulation reference signals and the additional demodulation reference signals, the number of the ports corresponding to the pre-demodulation reference signals and the additional demodulation reference signals is the same, and the positions of the ports in the frequency domain are corresponding.
5. The method of claim 4, wherein the configuration information comprises a number of resource blocks or a number of resource elements spaced apart in a frequency domain of the additional demodulation reference signal.
6. The method of claim 4, wherein the configuration information is transmitted via radio resource control information.
7. A network side device, comprising:
the configuration module is used for sending configuration information to the terminal, wherein the configuration information is used for configuring time-frequency resources of a pre-demodulation reference signal and an additional demodulation reference signal, and the time-frequency resources of the additional demodulation reference signal occupy at least one continuous symbol in a time domain and are distributed at intervals in a frequency domain;
the time-frequency resource of the additional demodulation reference signal comprises a plurality of resource groups which are distributed at intervals, each resource group is distributed according to one of frequency division, time division and time-frequency division, the frequency division distribution mode is that each resource group occupies a plurality of continuous resource particles or resource blocks in a frequency domain and occupies only one symbol in a time domain, the time division distribution mode is that each resource group occupies a plurality of continuous symbols in the time domain and occupies only one resource particle or resource block in the frequency domain, and the time-frequency distribution mode is that each resource group occupies a plurality of continuous symbols in the time domain and occupies a plurality of continuous resource particles or resource blocks in the frequency domain;
The configuration information is further used for configuring ports corresponding to the pre-demodulation reference signals and the additional demodulation reference signals, the number of the ports corresponding to the pre-demodulation reference signals and the additional demodulation reference signals is the same, and the positions of the ports in the frequency domain are corresponding.
8. A terminal, comprising:
the receiving module is used for receiving configuration information sent by network side equipment, the configuration information is used for configuring time-frequency resources of a pre-demodulation reference signal and an additional demodulation reference signal, and the time-frequency resources of the additional demodulation reference signal occupy at least one continuous symbol in a time domain and are distributed at intervals in a frequency domain;
the time-frequency resource of the additional demodulation reference signal comprises a plurality of resource groups which are distributed at intervals, each resource group is distributed according to one of frequency division, time division and time-frequency division, the frequency division distribution mode is that each resource group occupies a plurality of continuous resource particles or resource blocks in a frequency domain and occupies only one symbol in a time domain, the time division distribution mode is that each resource group occupies a plurality of continuous symbols in the time domain and occupies only one resource particle or resource block in the frequency domain, and the time-frequency distribution mode is that each resource group occupies a plurality of continuous symbols in the time domain and occupies a plurality of continuous resource particles or resource blocks in the frequency domain;
The configuration information is further used for configuring ports corresponding to the pre-demodulation reference signals and the additional demodulation reference signals, the number of the ports corresponding to the pre-demodulation reference signals and the additional demodulation reference signals is the same, and the positions of the ports in the frequency domain are corresponding.
9. A network side device, comprising: a transceiver and a processor;
the transceiver is configured to send configuration information to a terminal, where the configuration information is used to configure time-frequency resources of a pre-demodulation reference signal and an additional demodulation reference signal, and the time-frequency resources of the additional demodulation reference signal occupy at least one continuous symbol in a time domain and are distributed at intervals in a frequency domain;
the time-frequency resource of the additional demodulation reference signal comprises a plurality of resource groups which are distributed at intervals, each resource group is distributed according to one of frequency division, time division and time-frequency division, the frequency division distribution mode is that each resource group occupies a plurality of continuous resource particles or resource blocks in a frequency domain and occupies only one symbol in a time domain, the time division distribution mode is that each resource group occupies a plurality of continuous symbols in the time domain and occupies only one resource particle or resource block in the frequency domain, and the time-frequency distribution mode is that each resource group occupies a plurality of continuous symbols in the time domain and occupies a plurality of continuous resource particles or resource blocks in the frequency domain;
The configuration information is further used for configuring ports corresponding to the pre-demodulation reference signals and the additional demodulation reference signals, the number of the ports corresponding to the pre-demodulation reference signals and the additional demodulation reference signals is the same, and the positions of the ports in the frequency domain are corresponding.
10. A terminal, comprising: a transceiver and a processor;
the transceiver is configured to receive configuration information sent by a network side device, where the configuration information is used to configure time-frequency resources of a pre-demodulation reference signal and an additional demodulation reference signal, and the time-frequency resources of the additional demodulation reference signal occupy at least one continuous symbol in a time domain and are distributed at intervals in a frequency domain;
the time-frequency resource of the additional demodulation reference signal comprises a plurality of resource groups which are distributed at intervals, each resource group is distributed according to one of frequency division, time division and time-frequency division, the frequency division distribution mode is that each resource group occupies a plurality of continuous resource particles or resource blocks in a frequency domain and occupies only one symbol in a time domain, the time division distribution mode is that each resource group occupies a plurality of continuous symbols in the time domain and occupies only one resource particle or resource block in the frequency domain, and the time-frequency distribution mode is that each resource group occupies a plurality of continuous symbols in the time domain and occupies a plurality of continuous resource particles or resource blocks in the frequency domain;
The configuration information is further used for configuring ports corresponding to the pre-demodulation reference signals and the additional demodulation reference signals, the number of the ports corresponding to the pre-demodulation reference signals and the additional demodulation reference signals is the same, and the positions of the ports in the frequency domain are corresponding.
11. A network side device comprising a memory, a processor and a computer program stored on the memory and executable on the processor; a demodulation reference signal configuration method as claimed in any one of claims 1 to 3 when said computer program is executed by said processor.
12. A terminal comprising a memory, a processor and a computer program stored on the memory and executable on the processor; -characterized in that the processor, when executing the computer program, implements the demodulation reference signal configuration method according to any one of claims 4 to 6.
13. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the demodulation reference signal configuration method according to any one of claims 1 to 6.
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| CN116506093B (en) * | 2023-06-26 | 2023-08-18 | 北京智芯微电子科技有限公司 | Method, device, equipment, chip and medium for configuring downlink demodulation reference signals |
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