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WO2019191972A1 - Procédé et appareil de détermination d'informations, et système de communication - Google Patents

Procédé et appareil de détermination d'informations, et système de communication Download PDF

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Publication number
WO2019191972A1
WO2019191972A1 PCT/CN2018/082014 CN2018082014W WO2019191972A1 WO 2019191972 A1 WO2019191972 A1 WO 2019191972A1 CN 2018082014 W CN2018082014 W CN 2018082014W WO 2019191972 A1 WO2019191972 A1 WO 2019191972A1
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WO
WIPO (PCT)
Prior art keywords
reference signal
scheduled
ports
terminal device
phase tracking
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2018/082014
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English (en)
Chinese (zh)
Inventor
张国玉
宋磊
张磊
王昕�
陈哲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to PCT/CN2018/082014 priority Critical patent/WO2019191972A1/fr
Publication of WO2019191972A1 publication Critical patent/WO2019191972A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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

Definitions

  • Figure 7 is a schematic diagram of an information determining apparatus according to Embodiment 5 of the present invention.
  • network side refers to one side of the network, which may be a certain base station, and may also include one or more network devices as above.
  • user side or “terminal side” or “terminal device side” refers to a side of a user or a terminal, which may be a certain UE, or may include one or more terminal devices as above.
  • FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present invention.
  • the terminal device and the network device are exemplarily illustrated.
  • the communication system 100 may include a network device 101 and a terminal device 102.
  • FIG. 1 is only described by taking one terminal device and one network device as an example, but the embodiment of the present invention is not limited thereto.
  • network device 101 may have multiples to form multiple TRP transmissions or multiple panel transmissions.
  • an existing service or a service that can be implemented in the future can be performed between the network device 101 and the terminal device 102.
  • these services may include, but are not limited to, enhanced mobile broadband (eMBB), massive machine type communication (mMTC), and high reliability low latency communication (URLLC, Ultra-Reliable and Low). -Latency Communication), and so on.
  • the terminal device When the number of indicated PTRS ports is 1, and the DMRS ports scheduled for the terminal device are from 2 DMRS port groups, the terminal device considers the PTRS ports to be shared by the two DMRS port groups. And the PTRS port and all ports in the DMRS port group containing the DMRS port associated therewith have a quasi-homologous relationship of ⁇ QCL-TypeA and QCL-TypeD ⁇ ; the PTRS port and the DMRS port not including the DMRS port associated therewith All ports in the group have a quasi-homologous relationship of QCL-TypeB.
  • the terminal device determines that the number of scheduled PTRS ports is less than or equal to the number of scheduled DMRS port groups, that is, does not decode PTRSs larger than the number of scheduled DMRS port groups; the number of decoded PTRSs can be maintained with the scheduling of network devices. Consistent, thereby not disabling the scheduling of network devices and reducing or avoiding resource waste and energy consumption.
  • Step 402 The network device sends downlink control information to the terminal device, where the downlink control information is used to schedule the downlink data channel.
  • the downlink control information may be used to indicate at least the number of the scheduled DMRS port groups.
  • the port of the scheduled DMRS is used to send a DMRS for demodulating the downlink data channel.
  • the DMRS, the downlink data channel, and the PTRS sent by the scheduled PTRS port are in the same time interval, and the time interval may be at least one of: a time slot, a subframe, and a frame; but the present invention is not limited thereto. This can also be other time lengths or time units.
  • Step 405 The terminal device determines the number of scheduled PTRS ports according to the number of scheduled DMRS port groups, where the number of scheduled PTRS ports is less than or equal to the number of scheduled DMRS port groups. For example, in the case where the number of scheduled DMRS port groups is 1, the terminal device determines that the number of scheduled PTRS ports is one.
  • Step 407 The terminal device receives data in the downlink data channel (or may also be referred to as a receiving downlink data channel) based on the downlink control information.
  • the PDSCH can be decoded according to DCI.
  • the DMRS transmitted to the DMRS port group of the terminal device determined in step 404 is used to demodulate the data. Therefore, only one DMRS port group is scheduled to the terminal device, and the corresponding number of PTRS ports scheduled to the terminal device is also 1. This enables the number of decoded PTRSs to be consistent with the scheduling of the network device, so that the scheduling of the network device does not lose flexibility, especially if the scheduling interval is less than the TresholdSchedOffset; in addition, it does not cause waste of resources and energy consumption of the terminal device. .
  • the downlink control channel is, for example, a PDCCH
  • the downlink data channel is, for example, a PDSCH
  • the present invention is not limited thereto, and may be, for example, an enhanced PDCCH or an enhanced PDSCH, and the like.
  • FIG. 4 only schematically illustrates the embodiment of the present invention, but the present invention is not limited thereto.
  • the order of execution between the various steps can be appropriately adjusted, and other steps can be added or some of the steps can be reduced.
  • Those skilled in the art can appropriately modify the above based on the above contents, and are not limited to the above description of FIG.
  • the terminal device when the number of PTRS ports is indicated by a signal other than DCI (for example, a default TCI state), if the number of DMRS port groups scheduled by the DCI is less than the number of indicated PTRS ports, the terminal device considers that the number of scheduled PTRS ports may be equal to The number of scheduled DMRS port groups, that is, the DCI has a scheduling priority.
  • DCI for example, a default TCI state
  • the number of PTRS ports is indicated by a TCI state activated by a CORESET, and the number of PTRS ports in the TCI state is configured to be 2. If the scheduling DCI indicates that only one set of DMRS ports is scheduled to transmit data information by the terminal device, the terminal device considers that only There is a PTRS port that sends a PTRS and the PTRS port is associated with one of the set of DMRS ports.
  • the number of PTRS ports is indicated by a default TCI state; and the default TCI state
  • the included parameter for indicating the number of PTRS ports is configured to be 1.
  • one or more TCI states of the CORESET configured for the terminal device include parameters (eg, nrofPorts) for indicating the number of PTRS ports configured to be one.
  • the QCL of the DMRS port of the scheduled PDSCH is assumed to be indicated by a TCI state in which the CORESET is activated
  • the data of the PDSCH is from the same TRP
  • the terminal device considers that the QSCH indicated by the TCI state assumes that the received PDSCH is the same One PDSCH.
  • the time slot in which the DCI is located contains the activated TCI state of the lowest or largest CORESET of one or more CORESETs in the search space;
  • the relationship between the number of PTRS ports and the set of reference signals (RS set) can be as follows:
  • the information determining unit 601 can be used to:
  • the number of ports of the phase tracking reference signal is indicated by a default manner and/or the downlink data is received. Quasi-homogenous information of the channel.
  • one or more transmission configuration indications for the set of control resources configured for the terminal device indicate that the parameter included in the state for indicating the number of ports of the phase tracking reference signal is configured to be 1 or not configured. .
  • the transmission configuration configured or activated by the higher layer signaling indicates the transmission configuration indication state with the smallest or largest number in the state
  • FIG. 7 is a schematic diagram of an information determining apparatus according to an embodiment of the present invention. As shown in FIG. 7, the information determining apparatus 700 includes:
  • the information determining apparatus 700 may further include:
  • the information determining apparatus 700 may also include other components or modules, and for the specific content of these components or modules, reference may be made to related art.
  • the network device determines the number of scheduled PTRS ports according to the number of scheduled DMRS port groups; the number of scheduled PTRS ports is less than or equal to the number of scheduled DMRS port groups. Therefore, the terminal device does not decode the PTRS larger than the number of scheduled DMRS port groups, and the number of decoded PTRSs can be consistent with the scheduling of the network device, thereby not causing the scheduling of the network device to lose flexibility, and the resources can be reduced or avoided. Waste and energy consumption.
  • the embodiment of the present invention further provides a communication system.
  • the communication system 100 can include:
  • a network device 101 configured with the information determining apparatus 700 as described in Embodiment 4;
  • the embodiment of the present invention further provides a network device, which may be, for example, a base station, but the present invention is not limited thereto, and may be other network devices.
  • a network device which may be, for example, a base station, but the present invention is not limited thereto, and may be other network devices.
  • FIG. 8 is a schematic structural diagram of a network device according to an embodiment of the present invention.
  • network device 800 can include a processor 810 (eg, a central processing unit CPU) and memory 820; and memory 820 is coupled to processor 810.
  • the memory 820 can store various data; in addition, a program 830 for information processing is stored, and the program 830 is executed under the control of the processor 810.
  • the processor 810 can be configured to execute the program 830 to implement the information determining method as described in embodiment 2.
  • the processor 810 can be configured to perform control of determining the number of ports of the scheduled phase tracking reference signal based on the number of port groups of the scheduled demodulation reference signals; the number of ports of the scheduled phase tracking reference signal is less than Or the number of port groups equal to the scheduled demodulation reference signal.
  • the network device 800 may further include: a transceiver 840, an antenna 850, and the like; wherein the functions of the foregoing components are similar to the prior art, and details are not described herein again. It should be noted that the network device 800 does not have to include all the components shown in FIG. 8; in addition, the network device 800 may also include components not shown in FIG. 8, and reference may be made to the prior art.
  • the processor 910 can be configured to execute a program to implement the information determining method as described in Embodiment 1.
  • the processor 910 can be configured to perform control of determining a number of ports of the scheduled phase tracking reference signal according to the number of port groups of the scheduled demodulation reference signals; the number of ports of the scheduled phase tracking reference signal is less than Or the number of port groups equal to the scheduled demodulation reference signal.
  • the embodiment of the present invention further provides a storage medium storing a computer readable program, wherein the computer readable program causes the terminal device to execute the information determining method described in Embodiment 1.
  • the method/apparatus described in connection with the embodiments of the invention may be embodied directly in hardware, a software module executed by a processor, or a combination of both.
  • one or more of the functional blocks shown in the figures and/or one or more combinations of the functional blocks may correspond to the various software modules of the computer program flow or to the various hardware modules.
  • These software modules may correspond to the respective steps shown in the figures.
  • These hardware modules can be implemented, for example, by curing these software modules using a Field Programmable Gate Array (FPGA).
  • FPGA Field Programmable Gate Array
  • the software module can reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art.
  • a storage medium can be coupled to the processor to enable the processor to read information from, and write information to, the storage medium; or the storage medium can be an integral part of the processor.
  • the processor and the storage medium can be located in an ASIC.
  • the software module can be stored in the memory of the mobile terminal or in a memory card that can be inserted into the mobile terminal.
  • the software module can be stored in the MEGA-SIM card or a large-capacity flash memory device.
  • One or more of the functional blocks described in the figures and/or one or more combinations of functional blocks may be implemented as a general purpose processor, digital signal processor (DSP) for performing the functions described herein.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • One or more of the functional blocks described with respect to the figures and/or one or more combinations of functional blocks may also be implemented as a combination of computing devices, eg, a combination of a DSP and a microprocessor, multiple microprocessors One or more microprocessors in conjunction with DSP communication or any other such configuration.
  • Attachment 1 a method for determining information, including:
  • the terminal device Determining, by the terminal device, a number of ports of the scheduled phase tracking reference signal according to the number of port groups of the scheduled demodulation reference signals; the number of ports of the scheduled phase tracking reference signal is less than or equal to the scheduled demodulation reference signal The number of port groups.
  • the terminal device receives downlink control information sent by the network device, where the downlink control information is used to indicate at least a port group number of the scheduled demodulation reference signal.
  • the terminal device receives the phase tracking reference signal based on at least a number of ports of the scheduled phase tracking reference signal
  • the default mode indicates the number of ports of the phase tracking reference signal.
  • the default mode comprises indication by a transmission configuration indication state configuration information, the transmission configuration indication state state information included in the state configuration information for indicating the phase tracking reference signal
  • the parameter number of the port is configured as 1.
  • an activated transmission configuration indication state that includes a minimum or maximum number of control resource sets in one or more control resource sets of the search space
  • the network device sends downlink control information in the downlink control channel to the terminal device, where the downlink control information is used to schedule the downlink data channel;
  • the network device transmits data in the downlink data channel to the terminal device.
  • the number of ports of the scheduled phase tracking reference signal is different from the number of ports of the indicated phase tracking reference signal.
  • the network device determines the number of ports of the scheduled phase tracking reference signal according to the number of port groups of the scheduled demodulation reference signal; the number of ports of the scheduled phase tracking reference signal is less than or equal to the port of the scheduled demodulation reference signal Number of groups;
  • the number of ports of the scheduled phase tracking reference signal is different from the number of ports of the indicated phase tracking reference signal.
  • the time interval includes the following At least one of: time slot, subframe, frame.

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

Abstract

La présente invention concerne un procédé et un appareil de détermination d'informations, et un système de communication. Le procédé comprend les étapes suivantes : un dispositif terminal détermine le nombre de ports d'un signal de référence de suivi de phase programmé (PTRS) en fonction du nombre de groupes de ports d'un signal de référence de démodulation programmé (DMRS), le nombre de ports de PTRS programmé étant inférieur ou égal au nombre de groupes de ports de DMRS programmé. De cette manière, le dispositif terminal ne décode pas les PTRS ayant un nombre de ports supérieur au nombre de groupes de ports de DMRS programmé, et le nombre de PTRS décodés peut coïncider avec la programmation d'un dispositif de réseau, ce qui permet d'éviter une perte de flexibilité dans la programmation d'un dispositif de réseau, et de réduire ou d'éviter le gaspillage de ressources et la consommation d'énergie.
PCT/CN2018/082014 2018-04-04 2018-04-04 Procédé et appareil de détermination d'informations, et système de communication Ceased WO2019191972A1 (fr)

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PCT/CN2018/082014 WO2019191972A1 (fr) 2018-04-04 2018-04-04 Procédé et appareil de détermination d'informations, et système de communication

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PCT/CN2018/082014 WO2019191972A1 (fr) 2018-04-04 2018-04-04 Procédé et appareil de détermination d'informations, et système de communication

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220217729A1 (en) * 2019-05-02 2022-07-07 Lg Electronics Inc. Method for transmitting and receiving data channel in wireless communication system, and apparatus therefor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105122871A (zh) * 2013-04-17 2015-12-02 华为技术有限公司 无线网络中自适应传输的系统和方法
WO2017188591A1 (fr) * 2016-04-25 2017-11-02 엘지전자 주식회사 Procédé de transmission de signaux permettant d'estimer un bruit de phase dans un système de communication sans fil

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105122871A (zh) * 2013-04-17 2015-12-02 华为技术有限公司 无线网络中自适应传输的系统和方法
WO2017188591A1 (fr) * 2016-04-25 2017-11-02 엘지전자 주식회사 Procédé de transmission de signaux permettant d'estimer un bruit de phase dans un système de communication sans fil

Non-Patent Citations (1)

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Title
"Physical Layer Procedures for Data (Release 15", 3GPP TS 38. 214, no. V15.0.0, 3 January 2018 (2018-01-03), XP051392264 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220217729A1 (en) * 2019-05-02 2022-07-07 Lg Electronics Inc. Method for transmitting and receiving data channel in wireless communication system, and apparatus therefor
US12193043B2 (en) * 2019-05-02 2025-01-07 Lg Electronics Inc. Method for transmitting and receiving data channel in wireless communication system, and apparatus therefor

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