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WO2018028661A1 - Procédé de calcul de marge de puissance d'émetteur, et équipement utilisateur associé - Google Patents

Procédé de calcul de marge de puissance d'émetteur, et équipement utilisateur associé Download PDF

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Publication number
WO2018028661A1
WO2018028661A1 PCT/CN2017/097031 CN2017097031W WO2018028661A1 WO 2018028661 A1 WO2018028661 A1 WO 2018028661A1 CN 2017097031 W CN2017097031 W CN 2017097031W WO 2018028661 A1 WO2018028661 A1 WO 2018028661A1
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WIPO (PCT)
Prior art keywords
user equipment
configuration information
stti
tti
subframe
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Ceased
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PCT/CN2017/097031
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English (en)
Chinese (zh)
Inventor
张萌
刘仁茂
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Sharp Corp
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Sharp Corp
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/30—Transmission power control [TPC] using constraints in the total amount of available transmission power
    • H04W52/36—Transmission power control [TPC] using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/30—Transmission power control [TPC] using constraints in the total amount of available transmission power
    • H04W52/36—Transmission power control [TPC] using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
    • H04W52/365—Power headroom reporting

Definitions

  • the present invention relates to the field of wireless communication technologies, and more particularly, to a method for calculating a transmitter power headroom under a Short Transmission Time Interval (sTTI), and a base station and a user equipment.
  • sTTI Short Transmission Time Interval
  • Modern wireless mobile communication systems present two distinctive features.
  • One is broadband high speed.
  • the fourth generation wireless mobile communication system has a bandwidth of up to 100 MHz and a downlink rate of up to 1 Gbps.
  • the second is mobile internet, which promotes mobile Internet access and mobile video on demand. , emerging services such as online navigation.
  • the Latency Reduction technology will support short-term TTI (sTTI) in both uplink and downlink, where 1 sTTI contains less than 14 OFDM, which can contain 2 OFDM symbols or 7 OFDM symbols, or other numbers less than 14.
  • the downlink channel supported by the project includes a Short Physical Downlink Control Channel (sPDCCH) and a Short Physical Downlink Shared Channel (sPDSCH), and the supported uplink channel has a short-term physical uplink control channel.
  • sPDCCH Short Physical Downlink Control Channel
  • sPDSCH Short Physical Downlink Shared Channel
  • sPDCCH Short Physical Uplink Control Channel
  • sPUSCH Short Physical Uplink Shared Channel
  • sPDCCH, sPDSCH, sPUCCH, and sPUSCH are physical channels with sTTI as the transmission time interval.
  • the sPDCCH is used to transmit downlink control information
  • the sPUSCH is used to transmit downlink control information
  • the sPUSCH is used to transmit uplink data information.
  • TTI refers to a subframe or transmission time interval of LTE/LTE-A with a duration of 1 ms and including 14 OFDM symbols;
  • sTTI refers to a duration of less than 1 ms and contains less than 14 OFDM symbols.
  • Subframe or transmission time interval which may contain 2 OFDM symbols or 7 OFDM symbols, or other numbers less than 14.
  • the calculation method of the first type of PH is to calculate the difference between the maximum transmit power of the UE and the power of the PUSCH; the calculation method of the second type of PH is to calculate the difference between the maximum transmit power of the UE and the sum of the PUCCH and the PUSCH.
  • PH power headroom
  • the problem solved by the present invention is how to define a new PH calculation method and its feedback method when the UE supports both sTTI and TTI.
  • Embodiments of the present invention provide a transmitter power headroom calculation method and user equipment and base station thereof to solve at least some of the above problems.
  • a method for transmitter power headroom calculation includes: receiving configuration information from a base station, the configuration information indicating a channel type transmitted by a user equipment on a short-term transmission time interval sTTI and a channel type transmitted by the user equipment on a transmission time interval TTI; and calculating a transmitter power margin of the user equipment according to the received configuration information.
  • a method for transmitter power headroom calculation comprising: generating configuration information indicating a channel type and a channel type transmitted by a user equipment on a short-term transmission time interval sTTI Determining, by the user equipment, the channel type transmitted on the transmission time interval TTI; and transmitting the configuration information to the user equipment, to calculate, by the user equipment, a transmitter power margin of the user equipment according to the configuration information.
  • a user equipment including: a receiver, for Receiving configuration information from the base station, the configuration information indicating a channel type transmitted by the user equipment on the short-term transmission time interval sTTI and a channel type transmitted by the user equipment on the transmission time interval TTI; and a margin calculation unit for The received configuration information calculates a transmitter power margin of the user equipment.
  • a base station including: a configuration information generating unit, configured to generate configuration information, where the configuration information indicates a channel type transmitted by a user equipment on a short-term transmission time interval sTTI, and the user equipment is transmitting a channel type transmitted on the time interval TTI; and a transmitter, configured to send the configuration information to the user equipment, to calculate, by the user equipment, a transmitter power margin of the user equipment according to the configuration information.
  • a configuration information generating unit configured to generate configuration information, where the configuration information indicates a channel type transmitted by a user equipment on a short-term transmission time interval sTTI, and the user equipment is transmitting a channel type transmitted on the time interval TTI
  • a transmitter configured to send the configuration information to the user equipment, to calculate, by the user equipment, a transmitter power margin of the user equipment according to the configuration information.
  • the above solution of the present invention at least solves the problem of how to define a new PH calculation method when the UE supports sTTI and TTI at the same time.
  • FIG. 1 is a schematic diagram showing a margin calculation scheme according to an embodiment of the present invention
  • FIG. 2 shows a simplified block diagram of a user equipment in accordance with an embodiment of the present invention
  • FIG. 3 shows a simplified block diagram of a base station in accordance with an embodiment of the present invention.
  • TTI refers to a subframe or transmission time interval of LTE/LTE-A with a duration of 1 ms and including 14 OFDM symbols; sTTI refers to a duration of less than 1 ms and contains less than 14 OFDM symbols. Subframe or transmission time interval, which may contain 2 OFDM symbols or 7 OFDM symbols, or other numbers less than 14.
  • Simultaneous transmission of sTTI and TTI means that the two overlap or partially coincide in time.
  • the sTTI subframe with the sequence number k and the TTI subframe with the sequence number i are temporally coincident or partially coincident, that is, the sTTI and the TTI are simultaneously transmitted.
  • i and k can be the same value or different values.
  • FIG. 1 shows a schematic diagram of a PH generation scheme in accordance with an embodiment of the present invention. It should be noted that although the method is shown in FIG. 1 in the form of information exchange between the base station and the user equipment, FIG. 1 may be divided into operations (methods) respectively shown in the base station and in the user equipment. Two different flow charts. . As shown, the method includes the following steps.
  • Step s201 The base station generates configuration information, indicating a channel type that the UE transmits on the sTTI and a channel type that the UE transmits on the TTI.
  • Step s202 The base station sends configuration information to the UE, so that the UE calculates the transmitter power headroom (PH) according to the configuration information.
  • PH transmitter power headroom
  • Step s101 The UE receives configuration information sent by the base station.
  • Step s102 The UE calculates the PH according to the configuration information.
  • the configuration information may be used to indicate that the UE transmits the sPUSCH on the sTTI and the UE transmits the PUSCH on the TTI.
  • sTTI is transmitted simultaneously with TTI.
  • P CMAX,c (i) is the maximum transmit power of the UE at the i-th subframe of the serving cell c;
  • P PUSCH,c (i) is the PUSCH transmit power of the UE at the i-th TTI subframe of the serving cell c, or the unpunctured PUSCH transmit power of the UE at the i-th subframe of the serving cell c;
  • P sPUSCH,c (k) is the sPUSCH transmission power of the UE at the kth sTTI subframe of the serving cell c.
  • the configuration information is used to indicate that the UE transmits the s PUCCH on the sTTI and the UE transmits the PUSCH on the TTI.
  • sTTI is transmitted simultaneously with TTI.
  • P CMAX,c (i) is the maximum transmit power of the UE at the i-th subframe of the serving cell c;
  • P PUSCH,c (i) is the PUSCH transmit power of the UE at the i-th TTI subframe of the serving cell c, or the unpunctured PUSCH transmit power of the UE at the i-th subframe of the serving cell c;
  • P sPUCCH,c (k) is the s PUCCH transmission power of the UE at the kth sTTI subframe of the serving cell c.
  • the configuration information is used to indicate that the UE transmits the sPUSCH on the sTTI and the UE transmits the PUCCH on the TTI.
  • sTTI is transmitted simultaneously with TTI.
  • P CMAX,c (i) is the maximum transmit power of the UE at the i-th subframe of the serving cell c;
  • P PUCCH,c (i) is the PUCCH transmit power of the UE at the i-th TTI subframe of the serving cell c, or the unpunctured PUCCH transmit power of the UE at the i-th subframe of the serving cell c;
  • P sPUSCH,c (k) is the sPUSCH transmission power of the UE at the kth sTTI subframe of the serving cell c.
  • the configuration information is used to indicate that the UE transmits the sPUCCH on the sTTI and the UE transmits the PUCCH on the TTI.
  • sTTI is transmitted simultaneously with TTI.
  • P CMAX,c (i) is the maximum transmit power of the UE at the i-th subframe of the serving cell c;
  • P PUCCH,c (i) is the PUCCH transmit power of the UE at the i-th TTI subframe of the serving cell c, or the unpunctured PUCCH transmit power of the UE at the i-th subframe of the serving cell c;
  • P sPUCCH,c (k) is the s PUCCH transmission power of the UE at the kth sTTI subframe of the serving cell c.
  • the configuration information is used to indicate that the UE transmits the sPUCCH and the sPUSCH on the sTTI and the UE transmits the PUSCH on the TTI.
  • sTTI is transmitted simultaneously with TTI.
  • P CMAX,c (i) is the maximum transmit power of the UE at the i-th subframe of the serving cell c;
  • P PUSCH,c (i) is the PUSCH transmit power of the UE at the i-th TTI subframe of the serving cell c, or the unpunctured PUSCH transmit power of the UE at the i-th subframe of the serving cell c;
  • P sPUCCH,c (k) is the sPUCCH transmit power of the UE at the kth sTTI subframe of the serving cell c;
  • P sPUSCH,c (k) is the sPUSCH transmission power of the UE at the kth sTTI subframe of the serving cell c.
  • the configuration information is used to indicate that the UE transmits the sPUCCH and the sPUSCH on the sTTI and the UE transmits the PUCCH on the TTI.
  • sTTI is transmitted simultaneously with TTI.
  • P CMAX,c (i) is the maximum transmit power of the UE at the i-th subframe of the serving cell c;
  • P PUCCH,c (i) is the PUCCH transmit power of the UE at the i-th TTI subframe of the serving cell c, or the unpunctured PUCCH transmit power of the UE at the i-th subframe of the serving cell c;
  • P sPUCCH,c (k) is the sPUCCH transmit power of the UE at the kth sTTI subframe of the serving cell c;
  • P sPUSCH,c (k) is the sPUSCH transmission power of the UE at the kth sTTI subframe of the serving cell c.
  • the configuration information is used to indicate that the UE transmits the sPUSCH on the sTTI and the UE transmits the PUSCH and the PUCCH on the TTI.
  • sTTI is transmitted simultaneously with TTI.
  • P CMAX,c (i) is the maximum transmit power of the UE at the i-th subframe of the serving cell c;
  • P PUSCH,c (i) is the PUSCH transmit power of the UE at the i-th TTI subframe of the serving cell c, or the unpunctured PUSCH transmit power of the UE at the i-th subframe of the serving cell c;
  • P PUCCH,c (i) is the PUCCH transmit power of the UE at the i-th TTI subframe of the serving cell c, or the unpunctured PUCCH transmit power of the UE at the i-th subframe of the serving cell c;
  • P sPUSCH,c (k) is the sPUSCH transmission power of the UE at the kth sTTI subframe of the serving cell c.
  • the configuration information is used to indicate that the UE transmits the s PUCCH on the sTTI and the UE transmits the PUSCH and the PUCCH on the TTI.
  • sTTI is transmitted simultaneously with TTI.
  • P CMAX,c (i) is the maximum transmit power of the UE at the i-th subframe of the serving cell c;
  • P PUSCH,c (i) is the transmit power of the PUSCH of the UE in the i-th TTI subframe of the serving cell c, or the transmit power of the PUSCH that is not punctured by the UE in the i-th subframe of the serving cell c
  • P PUCCH,c (i) is the transmit power of the PUCCH of the UE in the i-th TTI subframe of the serving cell c, or the transmit power of the unpunctured PUCCH of the UE in the i-th subframe of the serving cell c
  • P sPUCCH,c (k) is the s PUCCH transmission power of the UE at the kth sTTI subframe of the serving cell c.
  • the configuration information is used to indicate that the UE transmits the sPUSCH and the sPUCCH on the sTTI and the UE transmits the PUSCH and the PUCCH on the TTI.
  • sTTI is transmitted simultaneously with TTI.
  • PH P CMAX,c (i)-P PUSCH,c (i)-P PUCCH,c (i)-P sPUSCH,c (k)-P sPUCCH,c (k),
  • P CMAX,c (i) is the maximum transmit power of the UE at the i-th subframe of the serving cell c;
  • P PUSCH,c (i) is the PUSCH transmit power of the UE at the i-th TTI subframe of the serving cell c, or the unpunctured PUSCH transmit power of the UE at the i-th subframe of the serving cell c;
  • P PUCCH,c (i) is the PUCCH transmit power of the UE at the i-th TTI subframe of the serving cell c, or the unpunctured PUCCH transmit power of the UE at the i-th subframe of the serving cell c;
  • P sPUSCH,c (k) is the sPUSCH transmit power of the UE at the kth sTTI subframe of the serving cell c;
  • P sPUCCH,c (k) is the s PUCCH transmission power of the UE at the kth sTTI subframe of the serving cell c.
  • step s102
  • Step s103 The UE generates a message indicating the power headroom calculated in step s102 according to the PH.
  • a PHR MAC Control Element or other existing or newly defined control unit/message may be generated.
  • the generation of the PHR MAC Control Element may be performed by any means used in the prior art to generate the corresponding control unit, and details are not described herein again.
  • Step s104 The UE sends the generated message to the base station, for example, sends a PHR MAC Control Element.
  • the present invention also provides a user equipment and a base station for performing the above method, as shown in Figures 2 and 3, respectively.
  • Figures 2 and 3 are merely schematic block diagrams illustrating the schematic implementation of the present invention at the user equipment and base station, and for the sake of clarity only the components/components relating to the description of the present invention are shown. In particular implementations, other components/components that are commonly used or conceivable to those skilled in the art may also be included.
  • FIG. 2 shows a schematic simplified block diagram of a user equipment in accordance with an embodiment of the present invention.
  • the user equipment includes: a receiver 310, configured to receive configuration information from a base station, where the configuration information indicates a channel type that the user equipment transmits on the sTTI and a channel type that the user equipment transmits on the TTI; and the remaining amount calculation unit 320 uses And calculating, according to the received configuration information, a transmitter power margin of the user equipment.
  • the user equipment can also include a message generation unit 330 for generating a message indicating the transmitter power headroom, and a transmitter 340 for transmitting the generated message to the base station.
  • a message generation unit 330 for generating a message indicating the transmitter power headroom
  • a transmitter 340 for transmitting the generated message to the base station.
  • the user device may also include a memory 350 for storing information and data that the user device needs and/or generates in operation.
  • the margin calculation unit 320 may be configured to: when the sTTI is transmitted simultaneously with the TTI, subtract the transmit power of each channel sent at the subframe on the sTTI from the maximum transmit power of the user equipment at the subframe of the serving cell. And the transmit power of each channel transmitted at the subframe on the TTI.
  • the transmitter power margin of the user equipment may be calculated according to the solution of each embodiment of the foregoing step s102, and details are not described herein again.
  • FIG. 3 shows a schematic simplified block diagram of a base station in accordance with an embodiment of the present invention.
  • the base station includes: a configuration information generator 410, configured to generate configuration information indicating a channel type transmitted by the user equipment on the sTTI and a channel type transmitted by the user equipment on the TTI; and a transmitter 420 for using the user equipment
  • the configuration information is sent to calculate, by the user equipment, the transmitter power margin of the user equipment according to the configuration information.
  • the base station can also include a receiver 430 for receiving a message sent by the user equipment indicating its transmitter power margin.
  • the user equipment may also include a memory 440 for storing information and data that the base station needs and/or generates in operation.
  • the method and apparatus of the present invention have been described above in connection with the preferred embodiments. Those skilled in the art will appreciate that the methods shown above are merely exemplary. The method of the present invention is not limited to the steps and sequences shown above.
  • the network nodes and user equipment shown above may include more modules, for example, may also include modules that may be developed or developed in the future for base stations, MMEs, or UEs, and the like.
  • the various logos shown above are merely exemplary and not limiting, and the invention is not limited to specific cells as examples of such identifications. Many variations and modifications can be made by those skilled in the art in light of the teachings of the illustrated embodiments.
  • the above-described embodiments of the present invention can be implemented by software, hardware, or a combination of both software and hardware.
  • the base station and various components within the user equipment in the above embodiments may be implemented by various devices including, but not limited to, analog circuit devices, digital circuit devices, digital signal processing (DSP) circuits, and programmable processing. , Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs), Programmable Logic Devices (CPLDs), and more.
  • ASICs Application Specific Integrated Circuits
  • FPGAs Field Programmable Gate Arrays
  • CPLDs Programmable Logic Devices
  • base station refers to a mobile communication data and control switching center having a large transmission power and a relatively large coverage area, including resource allocation scheduling, data reception and transmission, and the like.
  • User equipment refers to a user mobile terminal, for example, a terminal device including a mobile phone, a notebook, etc., which can perform wireless communication with a base station or a micro base station.
  • embodiments of the invention disclosed herein may be implemented on a computer program product.
  • the computer program product is a product having a computer readable medium encoded with computer program logic that, when executed on a computing device, provides related operations to implement The above technical solution of the present invention.
  • the computer program logic When executed on at least one processor of a computing system, the computer program logic causes the processor to perform the operations (methods) described in the embodiments of the present invention.
  • Such an arrangement of the present invention is typically provided as software, code and/or other data structures, or such as one or more, that are arranged or encoded on a computer readable medium such as an optical medium (e.g., CD-ROM), floppy disk, or hard disk.
  • Software or firmware or such a configuration may be installed on the computing device such that one or more processors in the computing device perform the technical solutions described in the embodiments of the present invention.
  • each functional module or individual feature of the base station device and the terminal device used in each of the above embodiments may be implemented or executed by circuitry, typically one or more integrated circuits.
  • Circuitry designed to perform the various functions described in this specification can include general purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs) or general purpose integrated circuits, field programmable gate arrays (FPGAs), or others.
  • a general purpose processor may be a microprocessor, or the processor may be an existing processor, controller, microcontroller, or state machine.
  • the above general purpose processor or each circuit may be configured by a digital circuit or may be configured by a logic circuit.
  • the present invention can also use integrated circuits obtained by using the advanced technology.
  • the program running on the device according to the present invention may be a program that causes a computer to implement the functions of the embodiments of the present invention by controlling a central processing unit (CPU).
  • the program or information processed by the program may be temporarily stored in a volatile memory (such as a random access memory RAM), a hard disk drive (HDD), a non-volatile memory (such as a flash memory), or other memory system.
  • a program for realizing the functions of the embodiments of the present invention can be recorded on a computer readable recording medium.
  • the corresponding functions can be realized by causing a computer system to read programs recorded on the recording medium and execute the programs.
  • the so-called "computer system” herein may be a computer system embedded in the device, and may include an operating system or hardware (such as a peripheral device).
  • “Computer” can The read recording medium may be a semiconductor recording medium, an optical recording medium, a magnetic recording medium, a recording medium of a short-term dynamic storage program, or any other recording medium readable by a computer.
  • circuitry e.g., monolithic or multi-chip integrated circuits.
  • Circuitry designed to perform the functions described in this specification can include general purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs), or other programmable logic devices, discrete Gate or transistor logic, discrete hardware components, or any combination of the above.
  • DSPs digital signal processors
  • ASICs application specific integrated circuits
  • FPGAs field programmable gate arrays
  • a general purpose processor may be a microprocessor or any existing processor, controller, microcontroller, or state machine.
  • the above circuit may be a digital circuit or an analog circuit.
  • One or more embodiments of the present invention may also be implemented using these new integrated circuit technologies in the context of new integrated circuit technologies that have replaced existing integrated circuits due to advances in semiconductor technology.
  • the present invention is not limited to the above embodiment. Although various examples of the embodiments have been described, the invention is not limited thereto.
  • Fixed or non-mobile electronic devices installed indoors or outdoors can be used as terminal devices or communication devices such as AV devices, kitchen devices, cleaning devices, air conditioners, office equipment, vending machines, and other home appliances.

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

Abstract

La présente invention concerne un équipement utilisateur, une station de base et un procédé correspondant pour calculer une marge de puissance d'un émetteur. Le procédé comprend les étapes suivantes : recevoir des informations de configuration provenant d'une station de base, les informations de configuration indiquant un type de canal transmis par un équipement utilisateur sur un intervalle de temps de transmission court (sTTI) et un type de canal transmis par l'équipement utilisateur sur un intervalle de temps de transmission (TTI) ; et calculer une marge de puissance d'un émetteur de l'équipement utilisateur selon les informations de configuration reçues. La solution de la présente invention résout le problème de la manière de définir un nouveau procédé de calcul de PH lorsqu'un UE prend en charge à la fois un sTTI et un TTI.
PCT/CN2017/097031 2016-08-12 2017-08-11 Procédé de calcul de marge de puissance d'émetteur, et équipement utilisateur associé Ceased WO2018028661A1 (fr)

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CN201610663602.4A CN107734625A (zh) 2016-08-12 2016-08-12 发射机功率余量计算方法及其用户设备
CN201610663602.4 2016-08-12

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CN102742331A (zh) * 2010-04-01 2012-10-17 Lg电子株式会社 在无线接入系统中控制上行功率的方法和装置
CN104641684A (zh) * 2013-04-12 2015-05-20 华为技术有限公司 一种传输间隔tti类型切换方法、设备及系统
WO2015139795A1 (fr) * 2014-03-21 2015-09-24 Telefonaktiebolaget L M Ericsson (Publ) Procédé, système et dispositif de commutation d'un intervalle de temps de transmission
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