WO2019158036A1 - Procédé et appareil permettant de déterminer un motif de signal de référence - Google Patents

Procédé et appareil permettant de déterminer un motif de signal de référence Download PDF

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Publication number
WO2019158036A1
WO2019158036A1 PCT/CN2019/074815 CN2019074815W WO2019158036A1 WO 2019158036 A1 WO2019158036 A1 WO 2019158036A1 CN 2019074815 W CN2019074815 W CN 2019074815W WO 2019158036 A1 WO2019158036 A1 WO 2019158036A1
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Prior art keywords
pattern
dmrs
port
offset
prb0
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PCT/CN2019/074815
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English (en)
Chinese (zh)
Inventor
石靖
夏树强
梁春丽
韩祥辉
任敏
林伟
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中兴通讯股份有限公司
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Publication of WO2019158036A1 publication Critical patent/WO2019158036A1/fr

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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
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present disclosure relates to the field of communication technologies, for example, to a method and apparatus for determining a reference signal pattern.
  • the 4th Generation mobile communication technology (4G) Long-Term Evolution (LTE)/Long-Term Evolution Advance (LTE-Advance/LTE-A) and the fifth generation mobile The 5th Generation mobile communication technology (5G) faces increasing demands.
  • 4G and 5G systems are researching features that support enhanced mobile broadband, ultra-high reliability, ultra-low latency transmission, and massive connectivity.
  • DMRS Demodulation Reference Signal
  • the data part may rate match the DMRS of the legacy UE, but the DMRS used by the URLLC may collide with the DMRS of the legacy UE.
  • the DMRS used by the URLLC collides with the DMRS of the legacy UE, which results in a lower system spectrum efficiency.
  • the present disclosure provides a method and apparatus for determining a reference signal pattern to at least solve the problem of low spectral efficiency of a system caused by a collision between a DMRS used by a URLLC service and a DMRS of a legacy UE in the related art.
  • the present disclosure provides a method for determining a reference signal pattern, including: determining a demodulation reference signal DMRS offset pattern, wherein the DMRS offset pattern is a preset pattern relative to a Long Term Evolution LTE/Enhanced Long Term Evolution (LTE-A) system The pattern after the DMRS offset.
  • LTE-A Long Term Evolution LTE/Enhanced Long Term Evolution
  • the present disclosure further provides a determining device for determining a reference signal pattern, comprising: a first determining module, configured to determine a demodulation reference signal DMRS offset pattern, wherein the DMRS offset pattern is a preset pattern relative to Long Term Evolution (LTE) / Enhance the DMRS offset pattern of the Long Term Evolution LTE-A system.
  • a determining device for determining a reference signal pattern comprising: a first determining module, configured to determine a demodulation reference signal DMRS offset pattern, wherein the DMRS offset pattern is a preset pattern relative to Long Term Evolution (LTE) / Enhance the DMRS offset pattern of the Long Term Evolution LTE-A system.
  • LTE Long Term Evolution
  • the present disclosure also provides a storage medium having stored therein a computer program, wherein the computer program is configured to perform a determination method of any one of the above-described reference signal patterns at runtime.
  • the present disclosure also provides an electronic device comprising a memory and a processor, wherein the memory stores a computer program, the processor being arranged to execute the computer program to perform a determination method of any one of the reference signal patterns described above.
  • FIG. 1 is a block diagram showing a hardware structure of a mobile terminal for determining a reference signal pattern according to an embodiment
  • FIG. 2 is a flow chart of a method for determining a reference signal pattern according to an embodiment
  • FIG. 3 is a schematic diagram of an LTE DMRS pattern according to an embodiment
  • FIG. 5 is a baseline DMRS pattern provided by an embodiment
  • 6 is a DMRS shift pattern provided by an embodiment
  • FIG. 8 is another DMRS shift pattern provided by an embodiment
  • FIG. 9 is another DMRS shift pattern provided by an embodiment
  • FIG. 10 is a structural block diagram of a determining apparatus for determining a reference signal according to an embodiment
  • FIG. 11 is a structural block diagram of another apparatus for determining a reference signal pattern according to an embodiment.
  • FIG. 1 is a block diagram showing the hardware structure of a mobile terminal for determining a reference signal pattern according to an embodiment.
  • mobile terminal 10 may include one or more (only one of which is shown in FIG. 1) processor 102 (processor 102 may include, but is not limited to, a Microcontroller Unit (MCU) or a programmable logic device.
  • MCU Microcontroller Unit
  • a processing device such as a Field-Programmable Gate Array (FPGA) and a memory 104 provided to store data.
  • the mobile terminal may further include a transmission device 106 configured as a communication function and an input and output device 108.
  • FPGA Field-Programmable Gate Array
  • FIG. 1 is merely illustrative and does not limit the structure of the above mobile terminal.
  • the mobile terminal 10 may also include more or fewer components than those shown in FIG. 1, or have a different configuration than that shown in FIG.
  • the memory 104 may be configured to store a computer program, such as a software program of a application software and a module, such as a computer program corresponding to the determination method of the reference signal pattern in the embodiment, the processor 102 running the computer program stored in the memory 104, Thereby performing at least one functional application and data processing, ie implementing the above method.
  • Memory 104 may include high speed random access memory, and may also include non-volatile memory such as one or more magnetic storage devices, flash memory, or other non-volatile solid state memory.
  • memory 104 can include memory remotely located relative to processor 102, which can be connected to mobile terminal 10 over a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.
  • Transmission device 106 is arranged to receive or transmit data via a network.
  • the network instance described above may include a wireless network provided by a communication provider of the mobile terminal 10.
  • transmission device 106 includes a network interface controller (NIC) that can be coupled to other network devices via a base station to communicate with the Internet.
  • NIC network interface controller
  • the transmission device 106 can be a Radio Frequency (RF) module, and the transmission device 106 is configured to communicate with the Internet wirelessly.
  • RF Radio Frequency
  • FIG. 2 is a flow chart of a method for determining a reference signal pattern according to an embodiment. As shown in FIG. 2, the process includes the following steps.
  • Step S202 determining a demodulation reference signal DMRS offset pattern, where the DMRS offset pattern is a pattern of the preset pattern relative to the DMRS offset of the Long Term Evolution (LTE)/Enhanced Long Term Evolution (LTE) system.
  • LTE Long Term Evolution
  • LTE Enhanced Long Term Evolution
  • the preset pattern may be a DMRS pattern used in a sub-slot sTTI in a Short Transmission Time Interval (TTI), and there are two DMRS patterns, respectively Baseline DMRS pattern and sub-slot sTTI shift DMRS (sub-slot shift DMRS) pattern.
  • TTI Short Transmission Time Interval
  • Baseline DMRS pattern and sub-slot sTTI shift DMRS (sub-slot shift DMRS) pattern.
  • the execution body of the foregoing steps may be a base station, a terminal, or the like, but is not limited thereto.
  • a demodulation reference signal DMRS offset pattern is determined, wherein the DMRS offset pattern is a pattern of the preset pattern relative to the DMRS offset of the Long Term Evolution (LTE)/Enhanced Long Term Evolution (LTE) system.
  • LTE Long Term Evolution
  • LTE Enhanced Long Term Evolution
  • the above method further comprises the following steps.
  • Step S110 Determine, according to at least one of the following manners, the use of the DMRS offset pattern: Radio Resource Control (RRC) signaling configuration, Downlink Control Information (DCI) indication, and preset rules.
  • RRC Radio Resource Control
  • DCI Downlink Control Information
  • the DMRS resource of the legacy UE is prevented from being preempted by the URLLC, and the legacy UE can obtain an accurate channel estimation, thereby solving the DMRS used by the URLLC and the DMRS of the legacy UE in the related art.
  • the problem of low spectral efficiency of the system caused by collisions has achieved the technical effect of improving the spectral efficiency of the system.
  • the frequency domain subcarrier position occupied by the DMRS offset pattern includes at least one of the following: port 7/8 is in two physical resource blocks.
  • k 2, 9 in PRB1; where k is a subcarrier number index in a PRB, and the value is 0-11.
  • the frequency domain subcarrier position occupied by the DMRS offset pattern includes at least one of the following:
  • the vshift is an offset value used when generating a cell-specific reference signal (CRS) pattern, and the value includes 0, 1, and 2.
  • determining the use of the DMRS offset pattern according to the RRC signaling configuration and/or the DCI indication comprises one of: using 1 bit in the RRC signaling configuration to indicate that the use is relative to the LTE DMRS.
  • determining, according to the preset rule, that the use of the DMRS offset pattern comprises at least one of: only sTTI#2 uses the DMRS offset pattern; sTTI#2 and sTTI#4 use the DMRS offset pattern; All sTTIs use the DMRS offset pattern; the configured or indicated sTTI uses the DMRS offset pattern; the sTTI without the cell-specific pilot CRS or the configured Channel State Information-Reference Signals (CSI) -RS)
  • the DMRS offset pattern is used by the non-conflicting sTTI; the DMRS offset pattern is used only by sTTI#5; the DMRS offset pattern is used by sTTI#1 and sTTI#5; the DMRS offset cannot be used by the sTTI of the baseline pattern pattern.
  • the DMRS offset pattern is only used for sTTI#2, or for sTTI#2 and sTTI#4, or all sTTIs use the DMRS shift pattern. Or sTTI for configuration or indication, or for sTTI without CRS or sTTI that does not conflict with configured CSI-RS.
  • the DMRS offset pattern is only used for sTTI#5, or for sTTI#1 and sTTI#5, Or all sTTIs use the DMRS shift pattern, or sTTI for configuration or indication, or sTTI for which a baseline pattern cannot be used.
  • the above background description of the present disclosure is only one case, but is not limited thereto.
  • the method provided in this embodiment can also be used in the case that the LTE system supports the collision of the service transmission of the enhanced mobile broadband (eMBB) terminal and the URLLC terminal, and the URLLC avoids preempting the DMRS of the eMBB. It can also be used in the case where the eMBB-enabled terminal collides with the service transmission of the URLLC terminal in the 5G New Radio (NR) system, and the URLLC avoids preempting the DMRS of the eMBB. It can also be used in the LTE system to preempt the short TTI service, for example, to preempt the 1-slot TTI. In this case, the URLLC avoids preempting the DMRS used by the 1-slot service.
  • eMBB enhanced mobile broadband
  • PRB physical resource block
  • the URLLC service is implemented in an LTE system, for example, based on a short TTI.
  • sub-slot sTTI there are two DMRS patterns based on DMRS transmission, which are called baseline DMRS pattern and sub-slot sTTI shift DMRS pattern. Therefore, how to describe the two DMRS patterns are described below through two embodiments. Avoid preempting the legacy UE's DMRS, that is, how to offset.
  • the base station scheduling terminal A repeatedly transmits downlink data in the TTI, and uses a Short Physical Downlink Shared Channel (sPDSCH) channel.
  • sPDSCH Short Physical Downlink Shared Channel
  • the number of Orthogonal Frequency Division Multiplexing (OFDM) symbols included in the TTI is small, for example, not more than 7 OFDM symbols, but is not limited thereto.
  • OFDM Orthogonal Frequency Division Multiplexing
  • This embodiment is described in the short TTI structure in the LTE system, that is, the TTI is a short TTI (sort TTI, sTTI), but is not limited thereto.
  • the downlink (DL) short TTI frame structure is as shown in FIG.
  • the service of the terminal A is a URLLC service
  • the sPDSCH is configured to use a DMRS based (DMRS based) transmission mode.
  • the legacy UE B is already transmitting the Physical Downlink Shared Channel (PDSCH) service and occupies all or most of the frequency domain resources. In this case, there is not enough resources for transmitting the URLLC service of the terminal A. .
  • the base station schedules the URL LC service of the terminal A to use the sPDSCH to preempt the downlink resources of the legacy UE B being transmitted. In order to enable the legacy UE to obtain an accurate channel estimate and thus provide the possibility of correctly demodulating the data, it is necessary to avoid preempting the legacy UE's DMRS.
  • the TTI DMRS is located in the first two symbols of the sTTI in the time domain.
  • the premise that the baseline pattern can be used is that the sTTI has no CRS or does not conflict with the Channel State Information (CSI) configuration. In this case, only the LTE DMRS is offset.
  • CSI Channel State Information
  • the foregoing offsetting the LTE DMRS may be to offset the LTE DMRS port 7/8/9/10, or only to the LTE DMRS Port 7/8.
  • the foregoing offsetting the LTE DMRS may be to offset the LTE DMRS port 7/8/9/10, or only to the LTE DMRS Port 7/8.
  • LTE DMRS Port 7/8 is offset, it means that the resources occupied by the LTE DMRS Port 9/10 can be punctured.
  • the DMRS offset pattern is applicable to sTTI #2.
  • sTTI#2 there is no CRS, there is DMRS of LTE legacy UE, and there may be CSI-RS. Therefore, when the configured CSI-RS does not conflict with the baseline pattern, or when no CSI-RS is configured, the baseline pattern is used.
  • 4 transmit antennas (Transmit, Tx) are taken as an example (CSI configuration #0-9 is available), and CSI-RS configuration #0, 5 in sTTI#2 conflicts with the baseline pattern, and the remaining CSI configurations are configured. In sTTI#4/5, there is no conflict with sTTI#2 using the baseline pattern.
  • the possible DMRS shift pattern at this time is one of Case 1 (alt. 1), Case 2 (alt. 2), and Case 3 (alt. 3) as shown in FIG. 6.
  • Alt.2 The moved DMRS pattern is kept at equal intervals in the frequency domain. That is, for the same port, the subcarrier position occupied by the port in the frequency domain is 1 subcarrier occupied in every 6 subcarriers. For example, by moving the DMRS position on the basis of the mode 1, the DMRS interval after the movement is more uniform, and the subcarriers occupied by the same port are separated by 5 subcarriers.
  • the CSI-RS available configuration of Alt. 2 is more than the available configuration of the CSI-RS of Alt.
  • the DMRS shift pattern is only used for sTTI#2, or for sTTI#2 and sTTI#4, or all sTTIs use the DMRS shift pattern, or The sTTI configured or indicated, or used for sTTI without CRS or without conflict with the configured CSI-RS.
  • whether the terminal uses the DMRS shift pattern is configured by the base station through RRC signaling, or the DCI indication, or the DMRS shift pattern is used by default.
  • whether to use the DMRS shift pattern at this time may be configured or indicated according to whether the legacy UE uses the DMRS based transmission mode, for example, whether the RRC configuration may be used, or according to the current Whether the PDSCH of the legacy UE actually preempted in the subframe uses the DMRS to dynamically indicate whether the URLLC UE uses the DMRS shift pattern.
  • the Evolved NodeB dynamically indicates the DMRS usage of the sPDSCH.
  • DMRS shift pattern when the sPDSCH carrying the URLLC service uses the DMRS based transmission mode and preempts the PDSCH resource of the legacy UE at sTTI#2, and the legacy UE uses the DMRS based transmission mode, the Evolved NodeB (eNB) dynamically indicates the DMRS usage of the sPDSCH. DMRS shift pattern.
  • the method for determining the reference signal pattern in the embodiment may be implemented to prevent the LTE legacy UE resource from being preempted by the URLLC, and to avoid preempting the legacy UE's DMRS resource, and ensuring that the legacy UE can obtain an accurate channel estimation.
  • the simultaneously moved URLLC DMRS is used to provide channel estimation for the URLLC service. This ensures that the legacy UE obtains accurate channel estimation and thus provides the possibility of correctly demodulating the data while improving the performance of the URLLC, thereby improving the spectrum efficiency of the system.
  • the base station scheduling terminal A repeatedly transmits downlink data in the TTI, and uses the sPDSCH channel.
  • the TTI includes a small number of OFDM symbols, for example, no more than 7 OFDM symbols, but is not limited thereto.
  • This embodiment is described in the short TTI structure in the LTE system, that is, the TTI is sTTI, but is not limited thereto.
  • the DL short TTI frame structure is as shown in the sub-slot case of FIG. 4, and includes 6 DL short TTIs in a 1 ms subframe.
  • the sPDSCH is configured to start from OFDM symbol #1 or #3, Pattern1 is used; when sPDSCH is When configured to start from OFDM symbol #2, use Pattern2.
  • the OFDM symbol number here starts from 0, that is, there are 14 OFDM symbols in the 1 ms subframe, and the sequence numbers are #0 to #13.
  • the service of the terminal A is a URLLC service
  • the sPDSCH is configured to use the DMRS based transmission mode.
  • the legacy UE B is already transmitting the PDSCH service and occupies all or most of the frequency domain resources. In this case, there is not enough resources for transmitting the URLLC service of the terminal A.
  • the base station schedules the URL LC service of the terminal A to use the sPDSCH to preempt the downlink resources of the legacy UE B being transmitted. In order to enable the legacy UE to obtain an accurate channel estimate and thus provide the possibility of correctly demodulating the data, it is necessary to avoid preempting the legacy UE's DMRS.
  • Sub-slot sTTI The DMRS is located in the first two symbols of the sTTI in the time domain.
  • the condition for using the sTTI shift DMRS pattern is that the sTTI cannot be used because of the existence of CRS or the configuration CSI-RS conflicts with the baseline pattern.
  • the sTTI shift DMRS pattern needs to be offset from the LTE DMRS.
  • the foregoing LTE DMRS is offset, and the LTE DMRS Port 7/8/9/10 may be offset, or only the LTE DMRS Port 7/8 may be offset.
  • the LTE DMRS Port 7/8 is offset, it means that the resources occupied by the LTE DMRS Port 9/10 can be punctured.
  • the DMRS offset pattern is applicable to sTTI #5.
  • sTTI#5 there is CRS, there is DMRS of LTE legacy UE, and there may be CSI-RS. Therefore, sTTI#5 cannot use the baseline pattern in the non-Multimedia Broadcast Multicast Service Single Frequency Network (non-MBSFN) subframe, and uses the sTTI shift DMRS pattern.
  • the location where the sTTI shift DMRS pattern conflicts with the LTE DMRS is as follows.
  • Vshift 0 sTTI shift
  • the offset pattern is at least one of the following:
  • the DMRS shift pattern after the LTE DMRS offset is used only for sTTI#5, or for sTTI#1 and sTTI#5, or all sTTIs use the same DMRS shift pattern, either for configuration or indication of sTTI, or for sTTI that cannot use baseline pattern.
  • whether the terminal uses the DMRS shift pattern is configured by the base station through RRC signaling, or the DCI indication, or the DMRS shift pattern is used by default. For example, if the UE transmitting the URLLC is using the DMRS based transmission mode, whether to use the DMRS shift pattern at this time may be configured or indicated according to whether the legacy UE uses the DMRS based transmission mode, for example, whether the RRC configuration may be used, or according to the current subframe. Whether the actually preempted legacy UE's PDSCH uses the DMRS to dynamically indicate whether the URLLC UE uses the DMRS shift pattern.
  • the eNB dynamically instructs the DMRS of the sPDSCH to use the DMRS shift pattern.
  • the method for determining the reference signal pattern in the embodiment may be implemented to prevent the legacy DMRS resource from being preempted by the URLLC, and to ensure that the legacy UE can obtain an accurate channel estimation, and the URLLC DMRS after the mobile station is moved.
  • Channel estimation for providing URLLC services so as to ensure the accuracy of the URL LC, the legacy UE can obtain accurate channel estimation to provide the possibility of correctly demodulating data, and improve the system spectrum efficiency.
  • the method according to the foregoing embodiment may be implemented by means of software plus a general hardware platform, or may be implemented by hardware.
  • the technical solution of the present disclosure may be embodied in the form of a software product stored in a storage medium (such as Read-Only Memory (ROM) / Random Access Memory (Random Access Memory). , RAM, disk, CD-ROM, including a plurality of instructions for causing a terminal device (which may be a cell phone, a computer, a server, or a network device, etc.) to perform the method described in any of the embodiments of the present disclosure.
  • ROM Read-Only Memory
  • Random Access Memory Random Access Memory
  • a determining device for determining a reference signal pattern is also provided in the embodiment, and the device is used to implement the above-described embodiments, and the description thereof has been omitted.
  • the term "module” may implement a combination of software and/or hardware of a predetermined function.
  • the devices described in the following embodiments may be implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.
  • FIG. 10 is a structural block diagram of a device for determining a reference signal pattern according to an embodiment.
  • the device includes: a first determining module 102 configured to determine a DMRS offset pattern of a demodulation reference signal, where The DMRS offset pattern is a pattern of a preset pattern relative to a DMRS offset of a Long Term Evolution (LTE)/Enhanced Long Term Evolution (LTE-A) system.
  • LTE Long Term Evolution
  • LTE-A Enhanced Long Term Evolution
  • the preset pattern may be a DMRS pattern used in a sub-slot sTTI in the LTE short TTI.
  • DMRS patterns There are two types of DMRS patterns, namely a baseline DMRS pattern and a sub-slot sTTI shift DMRS pattern.
  • the demodulation reference signal DMRS offset pattern is determined by the apparatus shown in FIG. 10, wherein the DMRS offset pattern is a pattern of the preset pattern relative to the DMRS offset of the Long Term Evolution (LTE)/Enhanced Long Term Evolution (LTE) system.
  • LTE Long Term Evolution
  • LTE Enhanced Long Term Evolution
  • the LTE legacy UE resource is preempted while the legacy network resource is preempted, and the legacy DMRS resource is prevented from being preempted, so that the legacy UE can obtain an accurate channel estimation, thereby solving the DMRS and legacy used by the URLLC in the related art.
  • the problem of low spectral efficiency of the system caused by the collision of the DMRS of the UE achieves the technical effect of improving the spectrum efficiency of the system.
  • FIG. 11 is a structural block diagram of another apparatus for determining a reference signal pattern according to an embodiment.
  • the device includes, in addition to the module shown in FIG. 10, a second determining module 112, configured to determine the use of the DMRS offset pattern according to at least one of the following manners: radio resource control RRC signaling Configuration, downlink control information DCI indication, and preset rules.
  • the apparatus shown in FIG. 11 is configured to prevent the preemption of legacy DMRS resources while ensuring that the URLLC preempts the LTE legacy UE resources, and ensures that the legacy UE can obtain an accurate channel estimation, thereby solving the DMRS used by the URLLC and the DMRS of the legacy UE in the related art.
  • the problem of low spectral efficiency of the system caused by collisions has achieved the technical effect of improving the spectral efficiency of the system.
  • the foregoing multiple modules may be implemented by software or hardware.
  • the foregoing may be implemented by, but not limited to, the foregoing multiple modules are all located in the same processor; Modules are located in different processors in any combination.
  • the embodiment further provides a storage medium in which a computer program is stored, wherein the computer program is set to perform a determination method of the reference signal pattern in any of the above embodiments at runtime.
  • the storage medium may be configured to store a computer program for performing the following steps.
  • DMRS offset pattern is a pattern of a preset pattern relative to a DMRS offset of a Long Term Evolution, LTE/Enhanced Long Term Evolution (LTE) system.
  • the foregoing storage medium may include, but is not limited to, at least one medium that can store a computer program, such as a USB flash drive, a ROM, a RAM, a mobile hard disk, a magnetic disk, or an optical disk.
  • a computer program such as a USB flash drive, a ROM, a RAM, a mobile hard disk, a magnetic disk, or an optical disk.
  • the embodiment further provides an electronic device comprising a memory and a processor, wherein the memory stores a computer program, the processor being arranged to execute a computer program to perform the determination method of the reference signal pattern in any of the above embodiments.
  • the electronic device may further include a transmission device and an input and output device, wherein the transmission device is connected to the processor, and the input and output device is connected to the processor.
  • the above processor may be arranged to perform the following steps by a computer program.
  • DMRS offset pattern is a pattern of a preset pattern relative to a DMRS offset of a Long Term Evolution, LTE/Enhanced Long Term Evolution (LTE) system.
  • the at least one module or at least one of the steps described above may be implemented by a general-purpose computing device, which may be centralized on a single computing device or distributed over a network of multiple computing devices.
  • the at least one module or at least one step may be implemented by program code executable by the computing device, such that the at least one module or at least one step may be stored in the storage device by the computing device or
  • the at least one module or the at least one step is separately fabricated into at least one integrated circuit module, or the at least one module or the plurality of modules or steps in at least one step are fabricated into a single integrated circuit module.
  • the disclosure is not limited to any specific combination of hardware and software.

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

L'invention concerne un procédé et un appareil permettant de déterminer un motif de signal de référence. Le procédé consiste à déterminer un motif de décalage de signal de référence de démodulation (DMRS), le motif de décalage DMRS étant un motif d'un motif prédéfini par rapport au décalage DMRS d'un système d'évolution à long terme (LTE)/évolution à long terme avancé (LTE-A).
PCT/CN2019/074815 2018-02-13 2019-02-12 Procédé et appareil permettant de déterminer un motif de signal de référence WO2019158036A1 (fr)

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CN201810150151.3A CN110166199A (zh) 2018-02-13 2018-02-13 参考信号图样的确定方法及装置

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QUALCOMM INCORPORATED: "DMRS Design for sPDSCH", 3GPP TSG RAN WG1 #89, R1-1708777, 6 May 2017 (2017-05-06), XP051262652, Retrieved from the Internet <URL:https://www.3gpp.org/ftp/tsg_ran/wg1_rl1/tsgr1_89/docs/R1-1708777.zip> *

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