WO2021063042A1 - 解调参考信号端口的分配指示方法、装置、基站及终端 - Google Patents

解调参考信号端口的分配指示方法、装置、基站及终端 Download PDF

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Publication number
WO2021063042A1
WO2021063042A1 PCT/CN2020/097910 CN2020097910W WO2021063042A1 WO 2021063042 A1 WO2021063042 A1 WO 2021063042A1 CN 2020097910 W CN2020097910 W CN 2020097910W WO 2021063042 A1 WO2021063042 A1 WO 2021063042A1
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Prior art keywords
dmrs
indication information
reference signal
demodulation reference
indication
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PCT/CN2020/097910
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English (en)
French (fr)
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苏昕
高雪媛
高秋彬
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大唐移动通信设备有限公司
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048Allocation of pilot signals, i.e. of signals known to the receiver
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signaling, i.e. of overhead other than pilot signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation

Definitions

  • This application relates to the field of communication technology, and specifically relates to a method, device, base station, and terminal for assigning a demodulation reference signal port.
  • URLLC Ultra Reliable Low Latency Communications
  • AR Augmented Reality
  • VR Virtual Reality
  • Traffic control requirements including remote driving, and power distribution control requirements.
  • URLLC services have higher requirements for reliability, delay, and performance.
  • the embodiments of the present application propose a method, device, base station, and terminal for assigning a demodulation reference signal port.
  • an embodiment of the present application proposes a method for assigning a demodulation reference signal port, including:
  • the indication signaling carries indication information of a DMRS allocation table configured by a higher layer; or,
  • the indication signaling carries the indication information of the transmission mode configured by the higher layer, the indication information of the DMRS type of the demodulation reference signal, and the indication information of the maximum number of preamble DMRS symbols.
  • an embodiment of the present application also proposes a method for assigning demodulation reference signal ports, including:
  • the indication signaling carries indication information of a DMRS allocation table configured by a higher layer; or,
  • the indication signaling carries the indication information of the transmission mode configured by the higher layer, the indication information of the DMRS type of the demodulation reference signal, and the indication information of the maximum number of preamble DMRS symbols.
  • an embodiment of the present application proposes a demodulation reference signal port allocation indication device, including:
  • the signaling sending module is configured to send indication signaling to the terminal UE, so that the UE determines the allocation of the demodulation reference signal DMRS port according to the indication information;
  • the indication signaling carries indication information of a DMRS allocation table configured by a higher layer; or,
  • the indication signaling carries the indication information of the transmission mode configured by the higher layer, the indication information of the DMRS type of the demodulation reference signal, and the indication information of the maximum number of preamble DMRS symbols.
  • an embodiment of the present application also proposes a demodulation reference signal port allocation indication device, including:
  • the signaling receiving module is configured to receive the indication signaling sent by the base station, and determine the allocation of the demodulation reference signal DMRS port according to the indication information;
  • the indication signaling carries indication information of a DMRS allocation table configured by a higher layer; or,
  • the indication signaling carries the indication information of the transmission mode configured by the higher layer, the indication information of the DMRS type of the demodulation reference signal, and the indication information of the maximum number of preamble DMRS symbols.
  • an embodiment of the present application also proposes a base station, including:
  • At least one processor At least one processor
  • At least one memory communicatively connected with the processor, wherein:
  • the memory stores program instructions that can be executed by the processor, and the processor can execute the following methods by invoking the program instructions:
  • the indication signaling carries indication information of a DMRS allocation table configured by a higher layer; or,
  • the indication signaling carries the indication information of the transmission mode configured by the higher layer, the indication information of the DMRS type of the demodulation reference signal, and the indication information of the maximum number of preamble DMRS symbols.
  • an embodiment of the present application also proposes a terminal, including:
  • At least one processor At least one processor
  • At least one memory communicatively connected with the processor, wherein:
  • the memory stores program instructions that can be executed by the processor, and the processor can execute the following methods by invoking the program instructions:
  • the indication signaling carries indication information of a DMRS allocation table configured by a higher layer; or,
  • the indication signaling carries the indication information of the transmission mode configured by the higher layer, the indication information of the DMRS type of the demodulation reference signal, and the indication information of the maximum number of preamble DMRS symbols.
  • the embodiments of the present application also propose a non-transitory computer-readable storage medium, the non-transitory computer-readable storage medium storing a computer program, and the computer program causes the computer to execute the following method:
  • the indication signaling carries indication information of a DMRS allocation table configured by a higher layer; or,
  • the indication signaling carries the indication information of the transmission mode configured by the higher layer, the indication information of the DMRS type of the demodulation reference signal, and the indication information of the maximum number of preamble DMRS symbols.
  • the embodiments of the present application also propose a non-transitory computer-readable storage medium, the non-transitory computer-readable storage medium storing a computer program, and the computer program causes the computer to execute the following method:
  • the indication signaling carries indication information of a DMRS allocation table configured by a higher layer; or,
  • the indication signaling carries the indication information of the transmission mode configured by the higher layer, the indication information of the DMRS type of the demodulation reference signal, and the indication information of the maximum number of preamble DMRS symbols.
  • the embodiment of the present application directly indicates the DMRS allocation table or indicates the agreed DMRS allocation table through parameters by carrying indication information in the signaling, which can effectively reduce the overhead of DMRS port indication.
  • 1A and 1B are schematic diagrams of 1 coincidence and 2 symbols in DMRS pilot type 1 provided in the prior art, respectively;
  • 2A and 2B are schematic diagrams of 1 coincidence and 2 symbols in DMRS pilot type 2 provided in the prior art
  • FIG. 3 is a schematic flowchart of a method for assigning a demodulation reference signal port on the base station side according to an embodiment of the application;
  • FIG. 4 is a schematic flowchart of a method for assigning a demodulation reference signal port on the terminal side according to an embodiment of the application;
  • FIG. 5 is a schematic structural diagram of a demodulation reference signal port allocation indication device on the base station side according to an embodiment of the application;
  • FIG. 6 is a schematic structural diagram of an allocation indicating device for a demodulation reference signal port on the terminal side according to an embodiment of the application;
  • FIG. 7 is a logical block diagram of a base station provided by an embodiment of this application.
  • Fig. 8 is a logical block diagram of a base station provided by an embodiment of the application.
  • the multi-point coordinated transmission technology based on multiple TRP/PANEL mainly includes the following two types:
  • each TRP can be divided into several relatively independent antenna panels, so the shape and number of ports of the entire array can be flexibly adjusted according to deployment scenarios and business requirements.
  • the antenna panels or TRPs can also be connected by optical fibers for more flexible distributed deployment. In the millimeter wave band, as the wavelength decreases, the blocking effect generated by obstacles such as human bodies or vehicles will become more significant. In this case, from the perspective of ensuring the robustness of the link connection, the cooperation between multiple TRPs or panels can also be used to transmit/receive multiple beams from multiple angles, thereby reducing the blocking effect. Negative Effects.
  • the coordinated multi-point transmission technology can be divided into two types: coherent and non-coherent transmission.
  • coherent transmission each data layer will be mapped onto multiple TRPs/panels through a weighted vector.
  • non-coherent transmission each data stream is only mapped to part of the TRP/panel.
  • Coherent transmission has higher requirements for the synchronization between transmission points and the transmission capacity of the backhaul link, so it is more sensitive to many non-ideal factors in actual deployment conditions. Relatively speaking, incoherent transmission is less affected by the above factors, so it is a key consideration for multipoint transmission technology.
  • NC-JT transmission can use a single PDCCH (Physical Downlink Control Channel) to schedule a single PDSC (Physical Downlink Shared Channel, physical downlink shared channel) (single-PDCCH), or multiple PDCCHs, each scheduled separately Corresponding PDSCH mode (multi-PDCCH).
  • PDSC Physical Downlink Shared Channel, physical downlink shared channel
  • multi-PDCCH Corresponding PDSCH mode
  • multi-point collaboration technology is of great significance for improving the reliability of URLLC service transmission.
  • the blocking effect may cause a temporary interruption of communication.
  • the cooperative transmission of multiple transmission points/panels can be used to reduce the probability of the signal being blocked.
  • multiple transmission points/panels can be repeated or diversified to improve the reliability of transmission.
  • the DMRS port adopts the FDM (Frequency Division Multiplexing, frequency division multiplexing) + CDM (Code Division Multiplexing, code division multiplexing) method for multiplexing.
  • FDM Frequency Division Multiplexing, frequency division multiplexing
  • CDM Code Division Multiplexing, code division multiplexing
  • Each CDM group is divided into multiple ports by orthogonal code division multiplexing (Orthogonal Cover Code, OCC), and the CDM groups are distinguished by FDM.
  • NR supports two pilot types, and the pilot type used is configured through high-level signaling. The multiplexing and configuration methods of the two pilot types are described as follows:
  • each group of comb resources supports 2-port multiplexing through OCC;
  • each OFDM can support 4 ports.
  • one OFDM subcarrier is divided into three groups, each group is composed of two adjacent subcarriers, and FDM multiplexing between groups supports up to 6 ports, as shown in Figure 2A, where each group of resources Support 2-port multiplexing through OCC mode;
  • each CDM group supports a maximum of 4 orthogonal ports, as shown in Fig. 2B, so a maximum of 12 ports are supported in 3 CDM groups.
  • the port allocation method of DMRS is defined in TS38.212 as follows:
  • the URLLC enhancement schemes based on multi-point cooperative transmission include the following:
  • Solution 1 (SDM, Spatial Division Multiplexing): On overlapping time-frequency resources in a slot, each transmission opportunity (transmission occasion, actually refers to the signal sent by a TRP on a resource) corresponds to One associated TCI state and a set of data layers of a set of DMRS ports;
  • each frequency domain resource is associated with a TCI state, and the frequency domain resources do not overlap each other;
  • Solution 3 mini-slot level TDM (Time Division Multiplexing, time division multiplexing): In a slot, each time domain resource is associated with a TCI state, and the time domain resources do not overlap each other.
  • One of the time domain resources refers to a group (there can be only one in each group) mini slot;
  • Each time domain resource is associated with a TCI state, and the time domain resources do not overlap each other.
  • One of the time domain resources refers to a group (there can be only one slot in each group).
  • FIG. 3 shows a schematic flowchart of a method for assigning demodulation reference signal ports on the base station side according to this embodiment, including:
  • S301 Send indication signaling to the terminal UE, so that the UE determines the allocation of the demodulation reference signal DMRS port according to the indication information.
  • the indication signaling carries indication information of a DMRS allocation table configured by a higher layer; or,
  • the indication signaling carries the indication information of the transmission mode configured by the higher layer, the indication information of the DMRS type of the demodulation reference signal, and the indication information of the maximum number of preamble DMRS symbols.
  • the overhead of the DMRS port indication can be effectively reduced.
  • the DMRS allocation table only includes single-user and single-codeword DMRS ports Distribution.
  • the DMRS allocation table When performing enhanced mobile broadband eMBB service, URLLC service transmission, or using high-overhead control signaling, the DMRS allocation table includes single-user and multi-user, and/or, single-code and double-code word DMRS port allocation.
  • the DMRS port is allocated and instructed according to the original DMRS allocation table (Table 1-4).
  • the DMRS port allocation and instructions are performed according to the DMRS allocation table (Table 5-8) provided in this embodiment.
  • the DMRS port allocation and instruction are performed according to the DMRS allocation table (Table 9-12) provided in this embodiment.
  • high-level signaling can directly configure/instruct the use of the original DMRS allocation table (Table 1-4), or the DMRS allocation table (Table 5-8 or Table 9-12) provided in this embodiment for DMRS port allocation and Instructions.
  • all DMRS ports in the DMRS allocation table belong to one code division multiplexing CDM group;
  • all DMRS ports in the DMRS allocation table belong to 1 or 2 CDM groups.
  • All DMRS ports belong to a CDM group, such as CDM group 0;
  • the number of CDM groups without data can be 1, 2 or 3 (the specific maximum number depends on the parameter configuration of the DMRS, so the number of each table may be different);
  • MU-MIMO is not supported, and users can assume that users who are not co-scheduled with it use the same time-frequency resources.
  • DMRS port allocation requires 2bit instructions; when using Table 6, DMRS port allocation requires 3bit instructions; when using Table 7, DMRS port allocation requires 3bit instructions; when using Table 8, DMRS port allocation requires 4bit Instructions.
  • Table 5 when using Table 5, DMRS port allocation requires 2bit instructions; when using Table 6, DMRS port allocation requires 3bit instructions; when using Table 7, DMRS port allocation requires 3bit instructions; when using Table 8, DMRS port allocation requires 4bit Instructions.
  • All DMRS ports belong to 1 or 2 CDM groups, such as CDM group 0 or CDM groups 0 and 1;
  • the number of CDM groups without data can be 1, 2 or 3 (the specific maximum number depends on the parameter configuration of the DMRS, so the number of each table may be different);
  • MU-MIMO is not supported, and users can assume that users who are not co-scheduled with it use the same time-frequency resources.
  • DMRS port assignment requires 3bit indication
  • DMRS port assignment requires 3bit indication
  • DMRS port assignment requires 3bit indication
  • DMRS port assignment requires 3bit indication
  • DMRS port assignment requires 4bit Instructions.
  • the indication signaling also carries the indication information of the number of CDM groups without data in the corresponding DMRS allocation table, the indication information of the DMRS port set, and the actual used pre-DMRS symbols Number of instructions.
  • the DMRS allocation table to be used is determined, it is necessary to determine the specific table to be used according to the type of DMRS and the configuration of the maximum number of preamble DMRS symbols.
  • the base station After determining the specific table to be used, the base station indicates "the number of CDM groups without data”, “the set of DMRS ports", and “the number of pre-DMRS symbols actually used” through the Value in the table.
  • the terminal determines the corresponding parameter according to the indicated value, and receives it.
  • the URLLC service transmission adopts
  • the low-overhead DMRS port allocation indication method and the low-overhead DMRS port allocation table (Table 5-12) and its design principles are used.
  • the new DMRS In the instruction table functions such as dual codewords and multiple users that are not required for URLLC transmission are removed, which can effectively reduce the overhead of DMRS port instructions.
  • FIG. 4 shows a schematic flowchart of a method for assigning a demodulation reference signal port on the terminal side according to this embodiment, including:
  • S401 Receive the indication signaling sent by the base station, and determine the allocation of the demodulation reference signal DMRS port according to the indication information.
  • the indication signaling carries indication information of a DMRS allocation table configured by a higher layer; or,
  • the indication signaling carries the indication information of the transmission mode configured by the higher layer, the indication information of the DMRS type of the demodulation reference signal, and the indication information of the maximum number of preamble DMRS symbols.
  • the indication information in the signaling directly indicating the DMRS allocation table or indicating the agreed DMRS allocation table through parameters, the overhead of the DMRS port indication can be effectively reduced.
  • the DMRS allocation table only includes single-user and single-codeword DMRS ports Distribution.
  • the DMRS allocation table when performing enhanced mobile broadband eMBB service, URLLC service transmission or using high-overhead control signaling, includes single user and multi-user, and/or single code The allocation of DMRS ports for words and double code words.
  • all DMRS ports in the DMRS allocation table belong to one code division multiplexing CDM group;
  • all DMRS ports in the DMRS allocation table belong to 1 or 2 CDM groups.
  • the indication signaling also carries the indication information of the number of CDM groups without data in the corresponding DMRS allocation table, the indication information of the DMRS port set, and the actual used pre-DMRS symbols Number of instructions.
  • FIG. 5 shows a schematic structural diagram of an allocation indicating device for demodulation reference signal ports on the base station side provided by this embodiment.
  • the device includes: a signaling sending module 501, wherein:
  • the signaling sending module 501 is configured to send indication signaling to the terminal UE, so that the UE determines the allocation of the demodulation reference signal DMRS port according to the indication information.
  • the indication signaling carries indication information of a DMRS allocation table configured by a higher layer; or,
  • the indication signaling carries the indication information of the transmission mode configured by the higher layer, the indication information of the DMRS type of the demodulation reference signal, and the indication information of the maximum number of preamble DMRS symbols.
  • the device for indicating the allocation of the demodulation reference signal port described in this embodiment can be used to execute the corresponding method embodiment described above, and its principle and technical effect are similar, and will not be repeated here.
  • FIG. 6 shows a schematic structural diagram of an allocation indicating device for a demodulation reference signal port on the terminal side according to this embodiment.
  • the device includes: a signaling receiving module 601, wherein:
  • the signaling receiving module 601 is configured to receive the indication signaling sent by the base station, and determine the allocation of the demodulation reference signal DMRS port according to the indication information;
  • the indication signaling carries indication information of a DMRS allocation table configured by a higher layer; or,
  • the indication signaling carries the indication information of the transmission mode configured by the higher layer, the indication information of the DMRS type of the demodulation reference signal, and the indication information of the maximum number of preamble DMRS symbols.
  • the device for indicating the allocation of the demodulation reference signal port described in this embodiment can be used to execute the corresponding method embodiment described above, and its principle and technical effect are similar, and will not be repeated here.
  • the base station includes: a processor 701, a memory 702, and a bus 703;
  • the processor 701 and the memory 702 communicate with each other through the bus 703;
  • the processor 701 is configured to call program instructions in the memory 702 to execute the following methods:
  • the indication signaling carries indication information of a DMRS allocation table configured by a higher layer; or,
  • the indication signaling carries the indication information of the transmission mode configured by the higher layer, the indication information of the DMRS type of the demodulation reference signal, and the indication information of the maximum number of preamble DMRS symbols.
  • the DMRS allocation table only includes single-user and single-codeword DMRS ports Distribution situation.
  • the DMRS allocation table when performing enhanced mobile broadband eMBB service, URLLC service transmission or using high-overhead control signaling, includes single user and multi-user, and/or single codeword And the allocation of dual codeword DMRS ports.
  • a maximum of 2 DMRS ports are allocated in the DMRS allocation table, single codeword transmission is supported at most, and multi-user-multi-input multiple-output MU-MIMO is not supported;
  • all DMRS ports in the DMRS allocation table belong to one code division multiplexing CDM group;
  • all DMRS ports in the DMRS allocation table belong to 1 or 2 CDM groups.
  • the indication signaling also carries the indication information of the number of CDM groups without data in the corresponding DMRS allocation table, the indication information of the DMRS port set, and the actual number of pre-DMRS symbols used. Instructions.
  • the base station described in this embodiment can be used to execute the corresponding method embodiments described above, and its principles and technical effects are similar, and will not be repeated here.
  • the terminal includes: a processor (processor) 801, a memory (memory) 802, and a bus 803;
  • the processor 801 and the memory 802 communicate with each other through the bus 803;
  • the processor 801 is configured to call program instructions in the memory 802 to execute the following methods:
  • the indication signaling carries indication information of a DMRS allocation table configured by a higher layer; or,
  • the indication signaling carries the indication information of the transmission mode configured by the higher layer, the indication information of the DMRS type of the demodulation reference signal, and the indication information of the maximum number of preamble DMRS symbols.
  • the DMRS allocation table only includes single-user and single-codeword DMRS ports Distribution situation.
  • the DMRS allocation table when performing enhanced mobile broadband eMBB service, URLLC service transmission or using high-overhead control signaling, includes single user and multi-user, and/or single codeword And the allocation of dual codeword DMRS ports.
  • a maximum of 2 DMRS ports are allocated in the DMRS allocation table, single codeword transmission is supported at most, and multi-user-multi-input multiple-output MU-MIMO is not supported;
  • all DMRS ports in the DMRS allocation table belong to one code division multiplexing CDM group;
  • all DMRS ports in the DMRS allocation table belong to 1 or 2 CDM groups.
  • the indication signaling also carries the indication information of the number of CDM groups without data in the corresponding DMRS allocation table, the indication information of the DMRS port set, and the actual number of pre-DMRS symbols used. Instructions.
  • the terminal described in this embodiment can be used to execute the corresponding method embodiments described above, and its principles and technical effects are similar, and will not be repeated here.
  • the computer program product includes a computer program stored on a non-transitory computer-readable storage medium.
  • the computer program includes program instructions. When the program instructions are executed by a computer, the computer Able to perform the following methods:
  • the indication signaling carries indication information of a DMRS allocation table configured by a higher layer; or,
  • the indication signaling carries the indication information of the transmission mode configured by the higher layer, the indication information of the DMRS type of the demodulation reference signal, and the indication information of the maximum number of preamble DMRS symbols.
  • the computer program product includes a computer program stored on a non-transitory computer-readable storage medium.
  • the computer program includes program instructions. When the program instructions are executed by a computer, the computer Able to perform the following methods:
  • the indication signaling carries indication information of a DMRS allocation table configured by a higher layer; or,
  • the indication signaling carries the indication information of the transmission mode configured by the higher layer, the indication information of the DMRS type of the demodulation reference signal, and the indication information of the maximum number of preamble DMRS symbols.
  • the device embodiments described above are merely illustrative.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in One place, or it can be distributed to multiple network units.
  • Some or all of the modules can be selected according to actual needs to achieve the objectives of the solutions of the embodiments. Based on the content of the present disclosure, those of ordinary skill in the art can understand and implement the technical solutions disclosed in this application without creative work.
  • an embodiment of the present application provides a computer software product, which can be stored in a computer-readable storage medium, such as ROM/RAM, magnetic disk, optical disk, etc., and includes several instructions to make a computer
  • a device for example, a personal computer, a server, or a network device, etc. executes the method described in each embodiment or some parts of the embodiment.

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Abstract

本申请实施例公开了解调参考信号端口的分配指示方法、装置、基站及终端,方法包括:向终端UE发送指示信令,以使UE根据所述指示信息确定解调参考信号DMRS端口的分配情况;其中,所述指示信令携带有高层配置的DMRS分配表的指示信息;或,所述指示信令携带有高层配置的传输模式的指示信息、解调参考信号DMRS类型的指示信息以及最大前置DMRS符号数的指示信息。本申请实施例通过在信令中携带指示信息,直接指示DMRS分配表或通过参数指示已约定的DMRS分配表,能够有效降低DMRS端口指示的开销。

Description

解调参考信号端口的分配指示方法、装置、基站及终端
相关申请的交叉引用
本申请要求于2019年9月30日提交的申请号为201910941824.1,发明名称为“解调参考信号端口的分配指示方法、装置、基站及终端”的中国专利申请的优先权,其通过引用方式全部并入本文。
技术领域
本申请涉及通信技术领域,具体涉及解调参考信号端口的分配指示方法、装置、基站及终端。
背景技术
目前对于URLLC(Ultra Reliable Low Latency Communications,超高可靠低时延通信)业务的需求主要有几种典型应用场景,包括AR(Augmented Reality,增强现实)/VR(Virtual Reality,虚拟现实)的娱乐工业,工业自动化,远程驾驶在内的交通控制需求,以及电力分布控制需求等。这些URLLC业务对可靠性、时延和性能等方面有更高要求。
现有的基于多点协作的URLLC增强方案中,并没有专门设计的单独的DMRS端口分配和指示方案。
发明内容
由于现有方法存在上述问题,本申请实施例提出解调参考信号端口的分配指示方法、装置、基站及终端。
在第一方面,本申请实施例提出一种解调参考信号端口的分配指示方法,包括:
向终端UE发送指示信令,以使UE根据所述指示信息确定解调参考信号DMRS端口的分配情况;
其中,所述指示信令携带有高层配置的DMRS分配表的指示信息;或,
所述指示信令携带有高层配置的传输模式的指示信息、解调参考信号DMRS类型的指示信息以及最大前置DMRS符号数的指示信息。
在第二方面,本申请实施例还提出一种解调参考信号端口的分配指示 方法,包括:
接收基站发送的指示信令,并根据所述指示信息确定解调参考信号DMRS端口的分配情况;
其中,所述指示信令携带有高层配置的DMRS分配表的指示信息;或,
所述指示信令携带有高层配置的传输模式的指示信息、解调参考信号DMRS类型的指示信息以及最大前置DMRS符号数的指示信息。
在第三方面,本申请实施例提出一种解调参考信号端口的分配指示装置,包括:
信令发送模块,配置成向终端UE发送指示信令,以使UE根据所述指示信息确定解调参考信号DMRS端口的分配情况;
其中,所述指示信令携带有高层配置的DMRS分配表的指示信息;或,
所述指示信令携带有高层配置的传输模式的指示信息、解调参考信号DMRS类型的指示信息以及最大前置DMRS符号数的指示信息。
在第四方面,本申请实施例还提出一种解调参考信号端口的分配指示装置,包括:
信令接收模块,配置成接收基站发送的指示信令,并根据所述指示信息确定解调参考信号DMRS端口的分配情况;
其中,所述指示信令携带有高层配置的DMRS分配表的指示信息;或,
所述指示信令携带有高层配置的传输模式的指示信息、解调参考信号DMRS类型的指示信息以及最大前置DMRS符号数的指示信息。
在第五方面,本申请实施例还提出一种基站,包括:
至少一个处理器;以及
与所述处理器通信连接的至少一个存储器,其中:
所述存储器存储有可被所述处理器执行的程序指令,所述处理器调用所述程序指令能够执行以下方法:
向终端UE发送指示信令,以使UE根据所述指示信息确定解调参考信号DMRS端口的分配情况;
其中,所述指示信令携带有高层配置的DMRS分配表的指示信息;或,
所述指示信令携带有高层配置的传输模式的指示信息、解调参考信号DMRS类型的指示信息以及最大前置DMRS符号数的指示信息。
在第六方面,本申请实施例还提出一种终端,包括:
至少一个处理器;以及
与所述处理器通信连接的至少一个存储器,其中:
所述存储器存储有可被所述处理器执行的程序指令,所述处理器调用所述程序指令能够执行以下方法:
接收基站发送的指示信令,并根据所述指示信息确定解调参考信号DMRS端口的分配情况;
其中,所述指示信令携带有高层配置的DMRS分配表的指示信息;或,
所述指示信令携带有高层配置的传输模式的指示信息、解调参考信号DMRS类型的指示信息以及最大前置DMRS符号数的指示信息。
在第七方面,本申请实施例还提出一种非暂态计算机可读存储介质,所述非暂态计算机可读存储介质存储计算机程序,所述计算机程序使所述计算机执行以下方法:
向终端UE发送指示信令,以使UE根据所述指示信息确定解调参考信号DMRS端口的分配情况;
其中,所述指示信令携带有高层配置的DMRS分配表的指示信息;或,
所述指示信令携带有高层配置的传输模式的指示信息、解调参考信号DMRS类型的指示信息以及最大前置DMRS符号数的指示信息。
第八方面,本申请实施例还提出一种非暂态计算机可读存储介质,所述非暂态计算机可读存储介质存储计算机程序,所述计算机程序使所述计算机执行以下方法:
接收基站发送的指示信令,并根据所述指示信息确定解调参考信号DMRS端口的分配情况;
其中,所述指示信令携带有高层配置的DMRS分配表的指示信息;或,
所述指示信令携带有高层配置的传输模式的指示信息、解调参考信号DMRS类型的指示信息以及最大前置DMRS符号数的指示信息。
由上述技术方案可知,本申请实施例通过在信令中携带指示信息,直接指示DMRS分配表或通过参数指示已约定的DMRS分配表,能够有效降低DMRS端口指示的开销。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本申请的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些图获得其他的附图。
图1A和图1B分别为现有技术提供的DMRS导频类型1中1个符合和2个符号的示意图;
图2A和图2B分别为现有技术提供的DMRS导频类型2中1个符合和2个符号的示意图;
图3为本申请一实施例提供的基站侧的解调参考信号端口的分配指示方法的流程示意图;
图4为本申请一实施例提供的终端侧的解调参考信号端口的分配指示方法的流程示意图;
图5为本申请一实施例提供的基站侧的解调参考信号端口的分配指示装置的结构示意图;
图6为本申请一实施例提供的终端侧的解调参考信号端口的分配指示装置的结构示意图;
图7为本申请一实施例提供的基站的逻辑框图;
图8为本申请一实施例提供的基站的逻辑框图。
具体实施方式
下面结合附图,对本申请的具体实施方式作进一步描述。以下实施例仅用于更加清楚地说明本申请的技术方案,而不能以此来限制本申请的保护范围。
具体地,基于多TRP/PANEL间的多点协作传输技术主要包括以下两种:
1)multi-TRP/panel传输技术
为了改善小区边缘的覆盖,在服务区内提供更为均衡的服务质量,多点协作在NR系统中仍然是一种重要的技术手段。从网络形态角度考虑,以大量的分布式接入点+基带集中处理的方式进行网络部署将更加有利于提供均衡的用户体验速率,并且显著的降低越区切换带来的时延和信令开销。随着频段的升高,从保证网络覆盖的角度出发,也需要相对密集的接 入点部署。而在高频段,随着有源天线设备集成度的提高,将更加倾向于采用模块化的有源天线阵列。每个TRP的天线阵可以被分为若干相对独立的天线面板,因此整个阵面的形态和端口数都可以随部署场景与业务需求进行灵活的调整。而天线面板或TRP之间也可以由光纤连接,进行更为灵活的分布式部署。在毫米波波段,随着波长的减小,人体或车辆等障碍物所产生的阻挡效应将更为显著。这种情况下,从保障链路连接鲁棒性的角度出发,也可以利用多个TRP或面板之间的协作,从多个角度的多个波束进行传输/接收,从而降低阻挡效应带来的不利影响。
根据发送信号流到多个TRP/面板上的映射关系,多点协作传输技术可以分为相干和非相干传输两种。其中,相干传输时,每个数据层会通过加权向量映射到多个TRP/面板之上。而非相干传输时,每个数据流只映射到部分的TRP/面板上。相干传输对于传输点之间的同步以及回程链路的传输能力有着更高的要求,因而对现实部署条件中的很多非理想因素较为敏感。相对而言,非相干传输受上述因素的影响较小,因此是多点传输技术的重点考虑方案。
NC-JT传输可以采用单PDCCH(Physical Downlink Control Channel,物理下行控制信道)调度单个PDSC(Physical Downlink Shared Channel,物理下行共享信道)的方式(single-PDCCH),也可以采用多个PDCCH,各自调度对应的PDSCH的方式(multi-PDCCH)。除了eMBB业务之外,多点协作技术对于提升URLLC业务传输的可靠性具有很重要的意义。例如,在高频段,阻挡效应可能造成通信的暂时中断。这种情况下,可以通过多个传输点/面板的协作发送,降低信号被阻挡的概率。此外,还可以通过多个传输点/面板的重复或分集发送,提高传输的可靠性。
2)DMRS(Demodulation Reference Signal,解调参考信号)设计方案
DMRS端口采用FDM(Frequency Division Multiplexing,频分复用)+CDM(Code Division Multiplexing,码分复用)的方式进行复用。在每个CDM组内通过正交码分复用方式(Orthogonal Cover Code,OCC)分为多个端口,CDM组之间通过FDM的方式进行区分。NR支持两种导频类型,通过高层信令配置所使用的导频类型。两种导频类型的复用和配置方式具体描述如下:
DMRS导频类型1,如图1A和图1B所示:
单OFDM符号时,共两组频分的梳状资源,最多支持4个端口,如图1A所示,其中每组梳状资源内部通过OCC方式支持2端口复用;
双OFDM符号时,最多支持8个端口,如图1B所示,其中每个OFDM可支持端口数为4。
DM-RS导频类型2,如图2A和图2B所示:
单OFDM符号时,将一个OFDM的子载波分为三组,每组由相邻的两个子载波构成,组间FDM复用,最多支持6个端口,如图2A所示,其中每组资源内部通过OCC方式支持2端口复用;
双OFDM符号时,每个CDM组内支持最多4个正交端口,如图2B所示,因此3个CDM组中最多支持12个端口。
DMRS的端口分配方式在TS38.212中有如下定义:
表1:Antenna port(s)(1000+DMRS port),dmrs-Type=1,maxLength=1
Figure PCTCN2020097910-appb-000001
表2:Antenna port(s)(1000+DMRS port),dmrs-Type=1,maxLength=2
Figure PCTCN2020097910-appb-000002
Figure PCTCN2020097910-appb-000003
表3:Antenna port(s)(1000+DMRS port),dmrs-Type=2,maxLength=1
Figure PCTCN2020097910-appb-000004
Figure PCTCN2020097910-appb-000005
表4:Antenna port(s)(1000+DMRS port),dmrs-Type=2,maxLength=2
Figure PCTCN2020097910-appb-000006
Figure PCTCN2020097910-appb-000007
Figure PCTCN2020097910-appb-000008
3)基于多点协作传输的URLLC增强方案
目前可能采用的基于多点协作传输的URLLC增强方案包括以下几种:
方案1(SDM,Spatial Division Multiplexing,空分复用):在一个slot内重叠的时频资源上,每个传输机会(transmission occasion,实际上指一个TRP在一份资源上发送的信号)对应于所关联的一个TCI state以及一组DMRS端口的一组数据层;
方案2(FDM):在一个slot内,每一份频域资源都关联到一个TCI state,各份频域资源之间互不重叠;
方案3(mini-slot级别的TDM(Time Division Multiplexing,时分复用)):在一个slot内,每一份时域资源都关联到一个TCI state,各份时域资源之间互不重叠。其中一份时域资源指一组(每组中可以只有一个)mini slot;
方案4(slot级别的TDM):每一份时域资源都关联到一个TCI state,各份时域资源之间互不重叠。其中一份时域资源指一组(每组中可以只有一个)slot。
以上方式之间还可以进一步进行组合,例如FDM+TDM方式。
如果URLLC业务沿用现有的eMBB(Enhanced Mobile Broadband,增强移动宽带)业务设计的DMRS端口分配及指示方案,如表1-4所示,则存在大量冗余信息,无法降低下行控制信道的信令开销,因此本申请提出以下DMRS端口分配表5-12:
表5:Antenna port(s)(1000+DMRS port),dmrs-Type=1,maxLength=1
Figure PCTCN2020097910-appb-000009
表6:Antenna port(s)(1000+DMRS port),dmrs-Type=1,maxLength=2
Figure PCTCN2020097910-appb-000010
表7:Antenna port(s)(1000+DMRS port),dmrs-Type=2,maxLength=1
Figure PCTCN2020097910-appb-000011
表8:Antenna port(s)(1000+DMRS port),dmrs-Type=2,maxLength=2
Figure PCTCN2020097910-appb-000012
表9:Antenna port(s)(1000+DMRS port),dmrs-Type=1,maxLength=1
Figure PCTCN2020097910-appb-000013
表10:Antenna port(s)(1000+DMRS port),dmrs-Type=1,maxLength=2
Figure PCTCN2020097910-appb-000014
表11:Antenna port(s)(1000+DMRS port),dmrs-Type=2,maxLength=1
Figure PCTCN2020097910-appb-000015
表12:Antenna port(s)(1000+DMRS port),dmrs-Type=2,maxLength=2
Figure PCTCN2020097910-appb-000016
图3示出了本实施例提供的一种基站侧的解调参考信号端口的分配指示方法的流程示意图,包括:
S301:向终端UE发送指示信令,以使UE根据所述指示信息确定解调参考信号DMRS端口的分配情况。
其中,所述指示信令携带有高层配置的DMRS分配表的指示信息;或,
所述指示信令携带有高层配置的传输模式的指示信息、解调参考信号DMRS类型的指示信息以及最大前置DMRS符号数的指示信息。
本实施例通过在信令中携带指示信息,直接指示DMRS分配表或通过参数指示已约定的DMRS分配表,能够有效降低DMRS端口指示的开销。
进一步地,在上述方法实施例的基础上,当进行超高可靠超低时延通 信URLLC业务传输或使用低开销控制信令时,所述DMRS分配表仅包括单用户和单码字的DMRS端口的分配情况。
当进行增强移动宽带eMBB业务、URLLC业务传输或使用高开销控制信令时,所述DMRS分配表包括单用户和多用户,和/或,单码字和双码字的DMRS端口的分配情况。
具体地,如果URLLC业务沿用现有的eMBB(Enhanced Mobile Broadband,增强移动宽带)业务设计的DMRS端口分配及指示方案则存在大量冗余信息,无法降低下行控制信道的信令开销,因此本实施提出以下方案:
根据高层信令的配置/指示,确定传输方案为eMBB业务时,根据原有的DMRS分配表(表1-4)进行DMRS端口的分配及指示。
根据高层信令的配置/指示,确定传输方案为FDM或TDM时,根据本实施例提供的DMRS分配表(表5-8)进行DMRS端口的分配及指示。
根据高层信令的配置/指示,确定传输方案为SDM时,根据本实施例提供的DMRS分配表(表9-12)进行DMRS端口的分配及指示。
或者,高层信令可直接配置/指示使用原有的DMRS分配表(表1-4),或本实施例提供的DMRS分配表(表5-8或表9-12)进行DMRS端口的分配及指示。
进一步地,在上述方法实施例的基础上,所述DMRS分配表中最多分配2个DMRS端口,最大支持单码字传输,且不支持多用户-多输入多输出MU-MIMO;
当传输模式为频分复用FDM或时分复用TDM时,所述DMRS分配表中所有的DMRS端口属于1个码分复用CDM组;
当传输模式为空分复用SDM时,所述DMRS分配表中所有的DMRS端口属于1或2个CDM组。
具体地,针对FDM与TDM设计的DMRS分配表中:
所有的DMRS端口都属于1个CDM组中,例如CDM组0;
只支持最大rank2的传输,即最多分配2个DMRS端口;
最大只支持单码字传输;
针对不同的DMRS估计可靠性要求,没有数据的CDM组数可以为1、 2或3个(具体最大的数目取决于DMRS的参数配置,因此每张表的数目可能不同);
不支持MU-MIMO,及用户可以假设没有与之共同调度的用户与其使用相同的时频资源。
举例来说,使用表5时,DMRS端口分配需要2bit指示;使用表6时,DMRS端口分配需要3bit指示;使用表7时,DMRS端口分配需要3bit指示;使用表8时,DMRS端口分配需要4bit指示。相对于表1-4有了大幅度的开销节省。
另一方面,针对SDM设计的DMRS分配表中:
所有的DMRS端口都属于1或2个CDM组中,例如CDM组0或CDM组0与1;
只支持最大rank2的传输,即最多分配2个DMRS端口;
最大只支持单码字传输;
针对不同的DMRS估计可靠性要求,没有数据的CDM组数可以为1、2或3个(具体最大的数目取决于DMRS的参数配置,因此每张表的数目可能不同);
不支持MU-MIMO,及用户可以假设没有与之共同调度的用户与其使用相同的时频资源。
举例来说,使用表9时,DMRS端口分配需要3bit指示;使用表10时,DMRS端口分配需要3bit指示;使用表11时,DMRS端口分配需要3bit指示;使用表12时,DMRS端口分配需要4bit指示。相对于表1-4有了大幅度的开销节省。
进一步地,在上述方法实施例的基础上,所述指示信令还携带有对应的DMRS分配表中没有数据的CDM组数的指示信息、DMRS端口集合的指示信息以及实际使用的前置DMRS符号数的指示信息。
具体地,如果确定使用的DMRS分配表,则需要根据DMRS的类型及最大前置DMRS符号数配置,确定具体使用的表格。
确定了具体使用的表格之后,基站通过表格中的Value值对“没有数据的CDM组数”、“DMRS端口集合”、“实际使用的前置DMRS符号数”进行指示。终端根据所指示的value,确定相应参数,并进行接收。
本实施例根据网络侧的配置,在URLLC业务传输采用
FDM/TDM/SDM方案时,使用低开销的DMRS端口分配指示方式和低开销的DMRS端口分配表(表5-12)及其设计原则,在进行TDM和FDM的URLLC传输时,在新的DMRS指示表中,去掉了URLLC传输所不需要双码字与多用户等功能,从而可以有效降低DMRS端口指示的开销。
图4示出了本实施例提供的一种终端侧的解调参考信号端口的分配指示方法的流程示意图,包括:
S401、接收基站发送的指示信令,并根据所述指示信息确定解调参考信号DMRS端口的分配情况。
其中,所述指示信令携带有高层配置的DMRS分配表的指示信息;或,
所述指示信令携带有高层配置的传输模式的指示信息、解调参考信号DMRS类型的指示信息以及最大前置DMRS符号数的指示信息。本实施例通过在信令中携带指示信息,直接指示DMRS分配表或通过参数指示已约定的DMRS分配表,能够有效降低DMRS端口指示的开销。
进一步地,在上述方法实施例的基础上,当进行超高可靠超低时延通信URLLC业务传输或使用低开销控制信令时,所述DMRS分配表仅包括单用户和单码字的DMRS端口的分配情况。
进一步地,在上述方法实施例的基础上,当进行增强移动宽带eMBB业务、URLLC业务传输或使用高开销控制信令时,所述DMRS分配表包括单用户和多用户,和/或,单码字和双码字的DMRS端口的分配情况。
进一步地,在上述方法实施例的基础上,所述DMRS分配表中最多分配2个DMRS端口,最大支持单码字传输,且不支持多用户-多输入多输出MU-MIMO;
当传输模式为频分复用FDM或时分复用TDM时,所述DMRS分配表中所有的DMRS端口属于1个码分复用CDM组;
当传输模式为空分复用SDM时,所述DMRS分配表中所有的DMRS端口属于1或2个CDM组。
进一步地,在上述方法实施例的基础上,所述指示信令还携带有对应的DMRS分配表中没有数据的CDM组数的指示信息、DMRS端口集合的指示信息以及实际使用的前置DMRS符号数的指示信息。
本实施例所述的终端侧的解调参考信号端口的分配指示方法与基站侧的解调参考信号端口的分配指示方法的原理和技术效果类似,此处不再赘述。
图5示出了本实施例提供的一种基站侧的解调参考信号端口的分配指示装置的结构示意图,所述装置包括:信令发送模块501,其中:
所述信令发送模块501,配置成向终端UE发送指示信令,以使UE根据所述指示信息确定解调参考信号DMRS端口的分配情况。
其中,所述指示信令携带有高层配置的DMRS分配表的指示信息;或,
所述指示信令携带有高层配置的传输模式的指示信息、解调参考信号DMRS类型的指示信息以及最大前置DMRS符号数的指示信息。
本实施例所述的解调参考信号端口的分配指示装置可以用于执行上述对应的方法实施例,其原理和技术效果类似,此处不再赘述。
图6示出了本实施例提供的一种终端侧的解调参考信号端口的分配指示装置的结构示意图,所述装置包括:信令接收模块601,其中:
所述信令接收模块601配置成接收基站发送的指示信令,并根据所述指示信息确定解调参考信号DMRS端口的分配情况;
其中,所述指示信令携带有高层配置的DMRS分配表的指示信息;或,
所述指示信令携带有高层配置的传输模式的指示信息、解调参考信号DMRS类型的指示信息以及最大前置DMRS符号数的指示信息。
本实施例所述的解调参考信号端口的分配指示装置可以用于执行上述对应的方法实施例,其原理和技术效果类似,此处不再赘述。
参照图7,所述基站,包括:处理器(processor)701、存储器(memory)702和总线703;
其中,
所述处理器701和存储器702通过所述总线703完成相互间的通信;
所述处理器701用于调用所述存储器702中的程序指令,以执行以下方法:
向终端UE发送指示信令,以使UE根据所述指示信息确定解调参考信号DMRS端口的分配情况;
其中,所述指示信令携带有高层配置的DMRS分配表的指示信息;或,
所述指示信令携带有高层配置的传输模式的指示信息、解调参考信号DMRS类型的指示信息以及最大前置DMRS符号数的指示信息。
进一步地,在上述实施例的基础上,当进行超高可靠超低时延通信URLLC业务传输或使用低开销控制信令时,所述DMRS分配表仅包括单用户和单码字的DMRS端口的分配情况。
进一步地,在上述实施例的基础上,当进行增强移动宽带eMBB业务、URLLC业务传输或使用高开销控制信令时,所述DMRS分配表包括单用户和多用户,和/或,单码字和双码字的DMRS端口的分配情况。
进一步地,在上述实施例的基础上,所述DMRS分配表中最多分配2个DMRS端口,最大支持单码字传输,且不支持多用户-多输入多输出MU-MIMO;
当传输模式为频分复用FDM或时分复用TDM时,所述DMRS分配表中所有的DMRS端口属于1个码分复用CDM组;
当传输模式为空分复用SDM时,所述DMRS分配表中所有的DMRS端口属于1或2个CDM组。
进一步地,在上述实施例的基础上,所述指示信令还携带有对应的DMRS分配表中没有数据的CDM组数的指示信息、DMRS端口集合的指示信息以及实际使用的前置DMRS符号数的指示信息。
本实施例所述的基站可以用于执行上述对应的方法实施例,其原理和技术效果类似,此处不再赘述。
参照图8,所述终端,包括:处理器(processor)801、存储器(memory)802和总线803;
其中,
所述处理器801和存储器802通过所述总线803实现相互间的通信;
所述处理器801被配置成调用所述存储器802中的程序指令,以执行以下方法:
接收基站发送的指示信令,并根据所述指示信息确定解调参考信号DMRS端口的分配情况;
其中,所述指示信令携带有高层配置的DMRS分配表的指示信息;或,
所述指示信令携带有高层配置的传输模式的指示信息、解调参考信号 DMRS类型的指示信息以及最大前置DMRS符号数的指示信息。
进一步地,在上述实施例的基础上,当进行超高可靠超低时延通信URLLC业务传输或使用低开销控制信令时,所述DMRS分配表仅包括单用户和单码字的DMRS端口的分配情况。
进一步地,在上述实施例的基础上,当进行增强移动宽带eMBB业务、URLLC业务传输或使用高开销控制信令时,所述DMRS分配表包括单用户和多用户,和/或,单码字和双码字的DMRS端口的分配情况。
进一步地,在上述实施例的基础上,所述DMRS分配表中最多分配2个DMRS端口,最大支持单码字传输,且不支持多用户-多输入多输出MU-MIMO;
当传输模式为频分复用FDM或时分复用TDM时,所述DMRS分配表中所有的DMRS端口属于1个码分复用CDM组;
当传输模式为空分复用SDM时,所述DMRS分配表中所有的DMRS端口属于1或2个CDM组。
进一步地,在上述实施例的基础上,所述指示信令还携带有对应的DMRS分配表中没有数据的CDM组数的指示信息、DMRS端口集合的指示信息以及实际使用的前置DMRS符号数的指示信息。
本实施例所述的终端可以用于执行上述对应的方法实施例,其原理和技术效果类似,此处不再赘述。
本实施例公开一种计算机程序产品,所述计算机程序产品包括存储在非暂态计算机可读存储介质上的计算机程序,所述计算机程序包括程序指令,当所述程序指令被计算机执行时,计算机能够执行以下方法:
向终端UE发送指示信令;
其中,所述指示信令携带有高层配置的DMRS分配表的指示信息;或,
所述指示信令携带有高层配置的传输模式的指示信息、解调参考信号DMRS类型的指示信息以及最大前置DMRS符号数的指示信息。
本实施例公开一种计算机程序产品,所述计算机程序产品包括存储在非暂态计算机可读存储介质上的计算机程序,所述计算机程序包括程序指令,当所述程序指令被计算机执行时,计算机能够执行以下方法:
接收基站发送的指示信令;
其中,所述指示信令携带有高层配置的DMRS分配表的指示信息;或,
所述指示信令携带有高层配置的传输模式的指示信息、解调参考信号DMRS类型的指示信息以及最大前置DMRS符号数的指示信息。
以上所描述的装置实施例仅仅是示意性的,其中所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部模块来实现本实施例方案的目的。基于本公开的内容,本领域普通技术人员在不付出创造性的劳动的情况下,即可以理解并实施本申请公开的技术方案。
通过以上的实施方式的描述,本领域的技术人员可以清楚地了解到各实施方式可借助软件结合所需的通用硬件平台的方式来实现,当然也可以通过硬件。由此,本申请的一个实施例提供一种计算机软件产品,该计算机软件产品可以存储在计算机可读存储介质中,如ROM/RAM、磁碟、光盘等,包括若干指令用以使得一台计算机设备(例如,个人计算机,服务器,或者网络设备等)执行各个实施例或者实施例的某些部分所述的方法。
应说明的是:以上实施例仅用以说明本申请的技术方案,而非对其限制;尽管参照前述实施例对本申请进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本申请各实施例技术方案的精神和范围。

Claims (24)

  1. 一种解调参考信号端口的分配指示方法,其特征在于,包括:
    向终端UE发送指示信令,以使UE根据所述指示信息确定解调参考信号DMRS端口的分配情况;
    其中,所述指示信令携带有高层配置的DMRS分配表的指示信息;或,
    所述指示信令携带有高层配置的传输模式的指示信息、解调参考信号DMRS类型的指示信息以及最大前置DMRS符号数的指示信息。
  2. 根据权利要求1所述的解调参考信号端口的分配指示方法,其特征在于,当进行超高可靠超低时延通信URLLC业务传输或使用低开销控制信令时,所述DMRS分配表仅包括单用户和单码字的DMRS端口的分配情况。
  3. 根据权利要求1所述的解调参考信号端口的分配指示方法,其特征在于,当进行增强移动宽带eMBB业务、URLLC业务传输或使用高开销控制信令时,所述DMRS分配表包括单用户和多用户,和/或,单码字和双码字的DMRS端口的分配情况。
  4. 根据权利要求2所述的解调参考信号端口的分配指示方法,其特征在于,所述DMRS分配表中最多分配2个DMRS端口,最大支持单码字传输,且不支持多用户-多输入多输出MU-MIMO;
    当传输模式为频分复用FDM或时分复用TDM时,所述DMRS分配表中所有的DMRS端口属于1个码分复用CDM组;
    当传输模式为空分复用SDM时,所述DMRS分配表中所有的DMRS端口属于1或2个CDM组。
  5. 根据权利要求1-4任一项所述的解调参考信号端口的分配指示方法,其特征在于,所述指示信令还携带有对应的DMRS分配表中没有数据的CDM组数的指示信息、DMRS端口集合的指示信息以及实际使用的前置DMRS符号数的指示信息。
  6. 一种解调参考信号端口的分配指示方法,其特征在于,包括:
    接收基站发送的指示信令,并根据所述指示信息确定解调参考信号DMRS端口的分配情况;
    其中,所述指示信令携带有高层配置的DMRS分配表的指示信息;或,
    所述指示信令携带有高层配置的传输模式的指示信息、解调参考信号DMRS类型的指示信息以及最大前置DMRS符号数的指示信息。
  7. 根据权利要求6所述的解调参考信号端口的分配指示方法,其特征在于,当进行超高可靠超低时延通信URLLC业务传输或使用低开销控制信令时,所述DMRS分配表仅包括单用户和单码字的DMRS端口的分配情况。
  8. 根据权利要求6所述的解调参考信号端口的分配指示方法,其特征在于,当进行增强移动宽带eMBB业务、URLLC业务传输或使用高开销控制信令时,所述DMRS分配表包括单用户和多用户,和/或,单码字和双码字的DMRS端口的分配情况。
  9. 根据权利要求7所述的解调参考信号端口的分配指示方法,其特征在于,所述DMRS分配表中最多分配2个DMRS端口,最大支持单码字传输,且不支持多用户-多输入多输出MU-MIMO;
    当传输模式为频分复用FDM或时分复用TDM时,所述DMRS分配表中所有的DMRS端口属于1个码分复用CDM组;
    当传输模式为空分复用SDM时,所述DMRS分配表中所有的DMRS端口属于1或2个CDM组。
  10. 根据权利要求6-9任一项所述的解调参考信号端口的分配指示方法,其特征在于,所述指示信令还携带有对应的DMRS分配表中没有数据的CDM组数的指示信息、DMRS端口集合的指示信息以及实际使用的前置DMRS符号数的指示信息。
  11. 一种解调参考信号端口的分配指示装置,其特征在于,包括:
    信令发送模块,配置为向终端UE发送指示信令,以使UE根据所述指示信息确定解调参考信号DMRS端口的分配情况;
    其中,所述指示信令携带有高层配置的DMRS分配表的指示信息;或,
    所述指示信令携带有高层配置的传输模式的指示信息、解调参考信号DMRS类型的指示信息以及最大前置DMRS符号数的指示信息。
  12. 一种解调参考信号端口的分配指示装置,其特征在于,包括:
    信令接收模块,配置为接收基站发送的指示信令,并根据所述指示信息确定解调参考信号DMRS端口的分配情况;
    其中,所述指示信令携带有高层配置的DMRS分配表的指示信息;或,
    所述指示信令携带有高层配置的传输模式的指示信息、解调参考信号DMRS类型的指示信息以及最大前置DMRS符号数的指示信息。
  13. 一种基站,包括存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序,其特征在于,所述处理器执行所述程序时执行如下步骤:
    向终端UE发送指示信令,以使UE根据所述指示信息确定解调参考信号DMRS端口的分配情况;
    其中,所述指示信令携带有高层配置的DMRS分配表的指示信息;或,
    所述指示信令携带有高层配置的传输模式的指示信息、解调参考信号DMRS类型的指示信息以及最大前置DMRS符号数的指示信息。
  14. 根据权利要求13所述的基站,其特征在于,当进行超高可靠超低时延通信URLLC业务传输或使用低开销控制信令时,所述DMRS分配表仅包括单用户和单码字的DMRS端口的分配情况。
  15. 根据权利要求13所述的基站,其特征在于,当进行增强移动宽带eMBB业务、URLLC业务传输或使用高开销控制信令时,所述DMRS分配表包括单用户和多用户,和/或,单码字和双码字的DMRS端口的分配情况。
  16. 根据权利要求14所述的基站,其特征在于,最多分配2个DMRS端口,所述DMRS分配表中最大支持单码字传输,且不支持多用户-多输入多输出MU-MIMO;
    当传输模式为频分复用FDM或时分复用TDM时,所述DMRS分配表中所有的DMRS端口属于1个码分复用CDM组;
    当传输模式为空分复用SDM时,所述DMRS分配表中所有的DMRS端口属于1或2个CDM组。
  17. 根据权利要求13-16任一项所述的基站,其特征在于,所述指示信令还携带有对应的DMRS分配表中没有数据的CDM组数的指示信息、DMRS端口集合的指示信息以及实际使用的前置DMRS符号数的指示信息。
  18. 一种终端,包括存储器、处理器及存储在存储器上并可在处理器 上运行的计算机程序,其特征在于,所述处理器执行所述计算机程序时执行如下步骤:
    接收基站发送的指示信令,并根据所述指示信息确定解调参考信号DMRS端口的分配情况;
    其中,所述指示信令携带有高层配置的DMRS分配表的指示信息;或,
    所述指示信令携带有高层配置的传输模式的指示信息、解调参考信号DMRS类型的指示信息以及最大前置DMRS符号数的指示信息。
  19. 根据权利要求18所述的终端,其特征在于,当进行超高可靠超低时延通信URLLC业务传输或使用低开销控制信令时,所述DMRS分配表仅包括单用户和单码字的DMRS端口的分配情况。
  20. 根据权利要求18所述的终端,其特征在于,当进行增强移动宽带eMBB业务、URLLC业务传输或使用高开销控制信令时,所述DMRS分配表包括单用户和多用户,和/或,单码字和双码字的DMRS端口的分配情况。
  21. 根据权利要求19所述的终端,其特征在于,所述DMRS分配表中最多分配2个DMRS端口,最大支持单码字传输,且不支持多用户-多输入多输出MU-MIMO;
    当传输模式为频分复用FDM或时分复用TDM时,所述DMRS分配表中所有的DMRS端口属于1个码分复用CDM组;
    当传输模式为空分复用SDM时,所述DMRS分配表中所有的DMRS端口属于1或2个CDM组。
  22. 根据权利要求18-21任一项所述的终端,其特征在于,所述指示信令还携带有对应的DMRS分配表中没有数据的CDM组数的指示信息、DMRS端口集合的指示信息以及实际使用的前置DMRS符号数的指示信息。
  23. 一种非暂态计算机可读存储介质,其上存储有计算机程序,其特征在于,该计算机程序被处理器执行时实现如权利要求1至5任一所述的解调参考信号端口的分配指示方法。
  24. 一种非暂态计算机可读存储介质,其上存储有计算机程序,其特征在于,该计算机程序被处理器执行时实现如权利要求6至10任一所述 的解调参考信号端口的分配指示方法。
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