WO2018137688A1 - Procédé de production et de réception de rs, et terminal et station de base - Google Patents

Procédé de production et de réception de rs, et terminal et station de base Download PDF

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Publication number
WO2018137688A1
WO2018137688A1 PCT/CN2018/074199 CN2018074199W WO2018137688A1 WO 2018137688 A1 WO2018137688 A1 WO 2018137688A1 CN 2018074199 W CN2018074199 W CN 2018074199W WO 2018137688 A1 WO2018137688 A1 WO 2018137688A1
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WIPO (PCT)
Prior art keywords
time unit
time
slot
parameter
type
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PCT/CN2018/074199
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English (en)
Chinese (zh)
Inventor
梁津垚
纪刘榴
李元杰
秦熠
吴宁
李新县
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华为技术有限公司
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Publication of WO2018137688A1 publication Critical patent/WO2018137688A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management

Definitions

  • the present application relates to the field of mobile communications technologies, and in particular, to an RS generation and reception method, a terminal, and a base station.
  • the basic unit of scheduling is a slot (ie, a time slot).
  • the reference signal (RS) is generated by using the RS formula defined by the LTE protocol, for example, a Channel State Information Reference Signal (CSI-RS) and a Demodulation Reference Signal (DMRS). ), the cell-specific reference signal (CRS), the frequency hopping of the uplink RS, etc., and the formulas for generating these RSs are all one of the parameters of the slot number.
  • CSI-RS Channel State Information Reference Signal
  • DMRS Demodulation Reference Signal
  • CRS cell-specific reference signal
  • the frequency hopping of the uplink RS etc.
  • 5G for example, New Radio (NR)
  • 5G communication the scheduled time unit is no longer a slot, but other time units, such as mini-slot, one of which The mini-slot contains fewer symbols than the slot.
  • One slot can be divided into multiple mini-slots, and multiple mini-slots can share one RS.
  • the present application provides an RS generation and reception method, a terminal, and a base station, which are used to provide an RS sequence generation method suitable for a 5G communication system.
  • the application provides an RS generating method, where the method includes:
  • the terminal generates an RS sequence according to the reference signal sequence initialization value.
  • the terminal may determine the reference signal sequence initialization value according to the first parameter set, and generate an RS sequence according to the reference signal sequence initialization value, and specifically, may be applied to the CSI-RS sequence generation, the CRS sequence generation, and the DMRS.
  • the generation of the sequence and the generation of other RS sequences wherein the parameters included in the first parameter set may refer to the parameters used in the existing existing RS sequence generation formula, for example, for the generation of the CSI-RS sequence, the used A parameter set may refer to a parameter set in a formula used in generating a CSI-RS sequence in LTE, but different from a parameter set used in an LTE generated CSI-RS sequence, the first used in the embodiment of the present application
  • the parameter set contains the time number, and the number of symbols included in the time unit is less than the number of symbols included in one slot.
  • the time unit used in generating the CSI-RS sequence in LTE is the slot itself, due to the 5G.
  • the time unit no longer uses the slot, but uses less time units than the number of symbols included in the slot, so in order to adapt Planted communications standards can be accurately generating the RS sequence, application of the present embodiment when generating the RS sequence, in a time unit in the communication standard RS sequence is generated, thus guaranteeing the correct RS sequence can be generated at the communications standard.
  • the number of the time unit is determined according to a number of a time unit that includes the location of the RS time domain, or according to the location of the same RS time domain. At least two time unit numbers are determined.
  • an RS time domain location may be exclusive to one time unit, or may be shared by multiple time units.
  • the time unit number in the first parameter set is equal to the number of the time unit including the RS time domain position; when multiple time units (at least two) share one RS time domain position, the time unit number in the first parameter set may be Determined based on multiple time unit numbers.
  • the number of the time unit is determined according to at least two time unit numbers that share the same RS time domain location, including The number of the time unit is equal to the smallest time unit number of the at least two time unit numbers, or the number of the time unit is equal to the largest time unit number of the at least two time unit numbers.
  • mini-slot#even represents a set of even-numbered time units
  • mini-slot#even+1 represents an even number of each time unit in the set of even-numbered time units plus one.
  • n s min(mini-slot#odd+1, mini-slot#even)
  • the calculation manner is similar, and is not described here again.
  • the method for obtaining the event unit number in the first parameter set according to the number of multiple time units sharing the same RS time domain position in the embodiment of the present application is not limited to the above. In several ways, the above is only an example. Any method that can obtain the time unit number in the first parameter set according to the number of multiple time units sharing the same RS time domain location can be used in the embodiment of the present application.
  • the terminal receives signaling from a base station, where the signaling includes information indicating a number n s of the time unit.
  • the terminal directly receives the signaling sent by the base station, where the signaling includes the time unit number in the first parameter set used by the terminal, where the signaling may be Radio Resource Control (RRC), Downlink Control Information (DCI) signaling configuration.
  • RRC Radio Resource Control
  • DCI Downlink Control Information
  • the signaling carries a parameter RSgeneratorSlotnumber and a specific value corresponding to the parameter.
  • the value is used to indicate the number of the time unit. For example, the value ranges from 0 to 59, and 59 is an example, indicating LTE.
  • the slot number is 0 to 19 (in a radio frame). If a slot contains 3 time units, there are 60 time units.
  • the terminal receives signaling from a base station, where The signaling includes information indicating at least two time unit numbers sharing the same RS time domain location.
  • the terminal can learn, according to the received signaling, which time units share the same RS time domain location, and then determine the number of the time unit in the first parameter set according to the number of the time units, for example, the base station sends the same to the terminal.
  • the signaling carries the number of the time unit, for example, (0, 1, 2, 3).
  • the terminal After receiving the signaling, the terminal obtains the number 0, 1, 2, and 3 of the time unit, and then obtains the operation result.
  • the parameter value of the number of the time unit in the first parameter set, and the specific calculation method, refer to the above description, and details are not described herein again.
  • the first parameter set further includes a number of time units sharing the RS sequence in one or more time slots.
  • an embodiment of the present application provides a terminal, where the terminal includes a processor, and is configured to:
  • An RS sequence is generated based on the reference signal sequence initialization value.
  • the number of the time unit is determined according to a number of a time unit that includes the location of the RS time domain, or according to the location of the same RS time domain. At least two time unit numbers are determined.
  • the number of the time unit is determined according to at least two time unit numbers that share the same RS time domain location, including :
  • the number of the time unit is equal to the smallest time unit number of the at least two time unit numbers, or the number of the time unit is equal to the largest time unit number of the at least two time unit numbers.
  • the method further includes: the terminal further includes: a transceiver, configured to: receive signaling from the base station, where the signaling includes The number of the unit information.
  • the terminal further includes a transceiver, configured to: The signaling is received from the base station, the signaling including information indicating at least two time unit numbers sharing the same RS time domain location.
  • the first parameter set further includes a number of time units sharing the RS sequence in one or more time slots.
  • the terminal provided by the present application may include a module for performing the behavior of the terminal station in the method design of the first aspect described above.
  • the module can be software and/or hardware.
  • an embodiment of the present application provides a method for receiving a reference signal RS, where the method includes:
  • the terminal receives signaling from the base station, where the signaling is used to indicate an RS time domain location used by one or at least two time units, where the number of symbols of the time unit is less than the number of symbols of one slot slot;
  • the terminal receives an RS from the base station according to the signaling.
  • the terminal can receive signaling from the base station, thereby knowing the specific symbol position of the mapped RS according to the signaling, and receiving the RS from the obtained symbol position. Thereby achieving correct reception of the RS from the base station.
  • the protocol may pre-define or share the symbol locations of the RSs by multiple time units that share the same RS time domain location, such that the terminal may receive the RS from the pre-defined symbol locations of the protocol.
  • the signaling is used to indicate an RS time domain location used by one or at least two time units, including:
  • the signaling includes information of a symbol K, or information including a time unit L and information of a symbol P on the time unit L;
  • the information of the symbol K is information of symbols corresponding to RS time domain positions shared by consecutive or discontinuous N time units, and the time unit L is continuous or discontinuous sharing the same RS time domain position.
  • the Lth time unit of the N time units, the symbol P is the Pth symbol in the Lth time unit, K is an integer, N is a positive integer, and L is a positive integer not greater than N, P It is no more than the number of symbols contained in the time unit.
  • consecutive or discontinuous N time units can share the RS sequence.
  • N may pre-define its value in the protocol, or the signaling sent by the base station to the terminal may include information of N, such as a value indicating N.
  • the terminal can obtain channel information that needs to be measured according to the received RS sequence and the locally generated RS sequence.
  • an embodiment of the present application provides a terminal, including a processor, configured to receive signaling from a base station, where the signaling is used to indicate an RS time domain location used by one or at least two time units, where the time is The number of symbols of the unit is less than the number of symbols of one slot;
  • a transceiver configured to receive an RS from the base station according to the signaling.
  • the signaling is used to indicate an RS time domain location used by one or at least two time units, including: the signaling includes a symbol K Information, or information including time unit L and information of symbol P on said time unit L;
  • the information of the symbol K is information of symbols corresponding to RS time domain positions shared by consecutive or discontinuous N time units, and the time unit L is continuous or discontinuous sharing the same RS time domain position.
  • the Lth time unit of the N time units, the symbol P is the Pth symbol in the Lth time unit, K is an integer, N is a positive integer, and L is a positive integer not greater than N, P It is no more than the number of symbols contained in the time unit.
  • the terminal provided by the present application may include a module for performing the behavior of the terminal station in the method design of the above third aspect.
  • the module can be software and/or hardware.
  • the embodiment of the present application provides a reference signal RS sending method, where the method includes:
  • the base station generates an RS sequence according to the reference signal sequence initialization value.
  • the reference signal is generated according to the RS sequence, and the reference signal sequence is subjected to operations such as mapping to generate a reference signal, and the generated reference signal is sent to the terminal.
  • the number of the time unit is determined according to a number of a time unit that includes the location of the RS time domain, or according to the location of the same RS time domain. At least two time unit numbers are determined.
  • the number of the time unit is determined according to at least two time unit numbers that share the same RS time domain location, including :
  • the number of the time unit is equal to the smallest time unit number of the at least two time unit numbers, or the number of the time unit is equal to the largest time unit number of the at least two time unit numbers.
  • the first parameter set further includes a number of time units sharing the RS sequence in one or more time slots.
  • an embodiment of the present application provides a base station, where the base station includes:
  • a processor configured to determine a reference signal sequence initialization value according to the first parameter set, where the first parameter set includes a time unit number, where the number of symbols included in the time unit is less than a symbol included in one slot number;
  • An RS sequence is generated based on the reference signal sequence initialization value.
  • the number of the time unit is determined according to a number of a time unit that includes an RS time domain location, or according to a shared time domain location of the same RS. At least two time unit numbers are determined.
  • the number of the time unit is determined according to at least two time unit numbers that share the same RS time domain location, including :
  • the number of the time unit is equal to the smallest time unit number of the at least two time unit numbers, or the number of the time unit is equal to the largest time unit number of the at least two time unit numbers.
  • the first parameter set further includes a number of time units sharing the RS sequence in one or more time slots.
  • the terminal provided by the present application may include a module corresponding to the behavior of the terminal station in performing the method design of the above fifth aspect.
  • the module can be software and/or hardware.
  • the embodiment of the present application provides a reference signal RS generating method, where the method includes:
  • the second parameter set includes a first parameter, where the first parameter is a parameter related to a number of a time unit, and the number of the time unit is Related to the type of the time unit; or the second parameter set includes a second parameter and a third parameter, the second parameter is a parameter related to a type of the time unit, and the third parameter is a time unit Number-related parameter; wherein, a time unit contains one or more symbols, and different time unit types contain different numbers of symbols;
  • the first device generates an RS sequence according to the reference signal sequence initialization value.
  • the first device may determine the reference signal sequence initialization value according to the second parameter set, and generate an RS sequence according to the reference signal sequence initialization value, where the second parameter set includes the first parameter, or includes the second parameter and the a three parameter, wherein the first parameter is a parameter related to the number of the time unit, the second parameter is a parameter related to the type of the time unit, and the third parameter is a parameter related to the number of the time unit, thereby being based on the number of the time unit Or the RS sequence is obtained based on the type of the time unit and the number of the time unit.
  • the number of the time unit is related to the type of the time unit, including:
  • the first device determines the number of the time unit according to the type of the time unit.
  • the type of the time unit is determined according to the number of symbols included in the time unit. For example, if the time unit includes 7 symbols or 14 symbols, the time unit including 7 symbols is one type, and the time unit including 14 symbols is A type.
  • the first device determines the number of the time unit according to the type of the time unit, including:
  • the type of the reference time unit is a signaling configured or a predefined time unit type, and the reference time unit is a time unit corresponding to the type of the reference time unit.
  • the reference time unit is a time unit including a specific number of symbols, for example, a time unit including 7 symbols as a reference time or the like.
  • determining the number of the time unit according to the number of the reference time unit corresponding to the time unit including:
  • the number of the time unit is the Qth number of the reference time unit corresponding to the time unit;
  • Q is a positive integer and Q is configured on the network side or predefined.
  • determining the number of the time unit according to the number of the reference time unit corresponding to the time unit includes:
  • the time unit corresponds to one or more sub-units, each sub-unit corresponding to one reference time unit, each sub-unit having the number of the corresponding reference time unit.
  • a time unit can be divided into a plurality of sub-units according to the reference unit, and each sub-unit includes the same number of symbols as one reference time unit, so that one time unit can correspond to multiple numbers, and each number represents the time.
  • the number of a subunit of the unit is the same number of symbols as one reference time unit, so that one time unit can correspond to multiple numbers, and each number represents the time.
  • the third parameter is a parameter related to a number of a time unit, including:
  • the third parameter is a number of the time unit, and the number of the time unit is sequentially numbered by a natural number, or
  • the third parameter is determined according to the number of the time unit, the number of symbols corresponding to the type of the time unit, and the number of symbols corresponding to the type of the reference time unit, and the number of the time unit is according to the number of symbols corresponding to the type of the time unit.
  • the number interval is determined according to the type of the time unit and the type of the reference time unit, and the type of the reference time unit is a network side configuration or a predefined time unit type;
  • the second parameter is a parameter related to a type of a time unit, including:
  • the first device determines the second parameter according to the type of the time unit.
  • the first device is a network side device or a terminal or a relay.
  • the embodiment of the present application provides a device, where the device may be a terminal or a base station, including:
  • a processor configured to determine a reference signal sequence initialization value according to the second parameter set, where the second parameter set includes a first parameter, where the first parameter is a parameter related to a number of a time unit, the time unit The number is related to the type of the time unit; or the second parameter set includes a second parameter and a third parameter, the second parameter is a parameter related to a type of the time unit, and the third parameter is a number-related parameter of a time unit; wherein, one time unit contains one or more symbols, and different time unit types contain different numbers of symbols;
  • An RS sequence is generated based on the reference signal sequence initialization value.
  • the processor is specifically configured to:
  • the number of the time unit is determined according to the type of the time unit.
  • the processor is specifically configured to:
  • the type of the reference time unit is a signaling configured or a predefined time unit type, and the reference time unit is a time unit corresponding to the type of the reference time unit.
  • determining the number of the time unit according to the number of the reference time unit corresponding to the time unit including:
  • the number of the time unit is the Qth number of the reference time unit corresponding to the time unit;
  • Q is a positive integer and Q is configured on the network side or predefined.
  • determining the number of the time unit according to the number of the reference time unit corresponding to the time unit includes:
  • the time unit corresponds to one or more sub-units, each sub-unit corresponding to one reference time unit, each sub-unit having the number of the corresponding reference time unit.
  • the third parameter is a parameter related to a number of a time unit, including:
  • the third parameter is a number of the time unit, and the number of the time unit is sequentially numbered by a natural number, or
  • the third parameter is determined according to the number of the time unit, the number of symbols corresponding to the type of the time unit, and the number of symbols corresponding to the type of the reference time unit, and the number of the time unit is according to the number of symbols corresponding to the type of the time unit.
  • the number interval is determined according to the type of the time unit and the type of the reference time unit, and the type of the reference time unit is a network side configuration or a predefined time unit type;
  • the processor is specifically configured to: determine the second parameter according to a type of the time unit.
  • the device is a network side device or terminal or relay.
  • the first device provided by the present application may comprise a module for performing the behavior of the terminal station in the method design of the seventh aspect above.
  • the module can be software and/or hardware.
  • the embodiment of the present application provides a reference signal RS generating method, where the method includes:
  • the first device determines a reference signal sequence initialization value according to the type of the time unit, wherein the type of the different time unit includes different numbers of symbols, and the time unit includes one or more symbols;
  • the first device generates an RS sequence according to the reference signal sequence initialization value.
  • the determining, by the first device, the reference signal sequence initialization value according to the type of the time unit includes:
  • the first device determines a reference signal sequence initialization value according to the number of the time unit; or the first device determines the reference signal sequence initialization value according to the type of the time unit and the number of the time unit.
  • the first device determines the number of the time unit according to the type of the time unit, including:
  • the first device determines the number of the time unit in the radio frame according to the number of symbols corresponding to the type of the time unit.
  • the first device determines the number of the time unit according to the type of the time unit, including:
  • the number interval is determined by the first device according to the number of symbols corresponding to the type of the time unit and the number of symbols corresponding to the type of the reference time unit, and the type of the reference time unit is configured or predefined on the base station side.
  • the first device is based on the type of the time unit and the number of the time unit. Determine the reference signal sequence initialization value, including:
  • the first parameter is a parameter related to a number of the time unit, and the type of the reference time unit is configured or predefined on a base station side;
  • the first device determines a reference signal sequence initialization value according to the second parameter and the third parameter.
  • the first device determines the number of the time unit according to the type of the time unit, including:
  • the type of the reference time unit is configured or predefined on the base station side.
  • the time unit corresponds to one or more sub-units, and each sub-unit corresponds to one reference time unit, and each sub-unit The number with the corresponding reference time unit.
  • the first device determines the reference signal sequence according to the number of the time unit Initialization values, including:
  • the first device determines a reference signal sequence initialization value according to the first parameter.
  • the first device is a base station or a terminal Or relay.
  • the embodiment of the present application provides a device, which may be a terminal or a base station or a relay, and includes:
  • a processor configured to determine a reference signal sequence initialization value according to a type of the time unit, wherein a type of the different time unit includes a different number of symbols, the time unit includes one or more symbols; and according to the The RS sequence is generated by referring to the signal sequence initialization value.
  • the processor is specifically configured to:
  • the reference signal sequence initialization value is determined according to the number of the time unit; or the first device determines the reference signal sequence initialization value according to the type of the time unit and the number of the time unit.
  • the processor is configured to: determine, according to the number of symbols corresponding to the type of the time unit, determine the wireless The number of the time unit in the frame.
  • the processor is specifically configured to: the number of symbols and the number interval corresponding to the type of the time unit Determining a number of the time unit in the radio frame;
  • the number interval is determined by the first device according to the number of symbols corresponding to the type of the time unit and the number of symbols corresponding to the type of the reference time unit, and the type of the reference time unit is configured or predefined on the base station side.
  • the processor is specifically configured to:
  • the first parameter is a parameter related to the number of the time unit, and the type of the reference time unit is configured or predefined on the base station side;
  • the processor is specifically configured to: the number of symbols and the reference time corresponding to the type of the time unit Determining the number of symbols corresponding to the type of the unit, determining the number of the time unit in the radio frame;
  • the type of the reference time unit is configured or predefined on the base station side.
  • the time unit corresponds to one or more subunits, and each subunit corresponds to one reference time unit, and each subunit The number with the corresponding reference time unit.
  • the processor is specifically configured to: according to the number of the time unit, Determining a first parameter, the first parameter being a parameter related to a number of the time unit;
  • a reference signal sequence initialization value is determined based on the first parameter.
  • the device is a base station or a terminal or a relay .
  • the apparatus provided herein may comprise a module for performing the behavior of the end station in the method design of the ninth aspect above.
  • the module can be software and/or hardware.
  • an apparatus for implementing the method as described in any of the above aspects or possible implementations.
  • the above apparatus includes one or more processors and communication units.
  • the one or more processors are configured to support the apparatus in performing the corresponding functions of a base station or a relay (a base station or a relay may be collectively referred to as a network device) in the above method. For example, an RS sequence is generated.
  • the communication unit is configured to support the device to communicate with other devices to implement receiving and/or transmitting functions.
  • the apparatus may further comprise one or more memories for coupling with the processor, which store program instructions and/or data necessary for the network device.
  • the one or more memories may be integrated with the processor or may be separate from the processor. This application is not limited.
  • the device may be a base station, a gNB or a TRP, etc.
  • the communication unit may be a transceiver, or a transceiver circuit.
  • the transceiver may also be an input/output circuit or an interface.
  • the device can also be a communication chip.
  • the communication unit may be an input/output circuit or interface of a communication chip.
  • the above apparatus includes a transceiver, a processor, and a memory.
  • the processor is configured to control a transceiver transceiver signal for storing a computer program for executing a computer program in a memory, such that the apparatus performs the fifth aspect, the seventh aspect, or the ninth aspect or A method of base station or device completion in any of the possible implementations of any of the fifth, seventh, or nine aspects.
  • the above apparatus includes one or more processors and communication units.
  • the one or more processors are configured to support the apparatus to perform the corresponding functions of the terminal in the above method. For example, an RS sequence is generated.
  • the communication unit is configured to support the device to communicate with other devices to implement receiving and/or transmitting functions.
  • the apparatus may further comprise one or more memories for coupling with the processor, which store program instructions and/or data necessary for the device.
  • the one or more memories may be integrated with the processor or may be separate from the processor. This application is not limited.
  • the device may be a smart terminal or a wearable device or the like, and the communication unit may be a transceiver or a transceiver circuit.
  • the transceiver may also be an input/output circuit or an interface.
  • the device can also be a communication chip.
  • the communication unit may be an input/output circuit or interface of a communication chip.
  • the above apparatus includes a transceiver, a processor, and a memory.
  • the processor is for controlling a transceiver transceiver signal for storing a computer program for executing a computer program in the memory, such that the apparatus performs the first aspect, the third aspect, the seventh aspect, or the ninth aspect Any of the aspects, or the method of completing the terminal or device in any of the first, third, seventh, or nine aspects.
  • a system comprising the above terminal and network device.
  • the embodiment of the present application provides a computer storage medium for storing computer software instructions for a base station, a terminal, or a device provided by the foregoing aspects, including a program designed to perform the foregoing aspects.
  • the present application also provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the methods described in the above aspects.
  • FIG. 1 is a flowchart of a method for generating an RS according to an embodiment of the present application
  • FIG. 2 is a schematic diagram of a mini-slot provided by the present application.
  • FIG. 3 is a flowchart of a method for generating an RS according to an embodiment of the present application
  • FIG. 4 is a flowchart of a method for receiving an RS according to an embodiment of the present application.
  • FIG. 5 is a flowchart of a method for generating an RS according to an embodiment of the present application
  • FIG. 6 is a first slot numbering manner provided by an embodiment of the present application.
  • FIG. 7 is a second slot numbering manner provided by an embodiment of the present application.
  • FIG. 8 is a third slot numbering manner provided by an embodiment of the present application.
  • FIG. 9 is a fourth slot numbering manner provided by an embodiment of the present application.
  • FIG. 10 is a schematic diagram of frequency domain resource numbers provided by an embodiment of the present application.
  • FIG. 11 is a schematic diagram of a base station according to an embodiment of the present application.
  • FIG. 12 is a schematic diagram of a terminal according to an embodiment of the present application.
  • FIG. 13 is a schematic diagram of an apparatus according to an embodiment of the present application.
  • the embodiment of the present application can be applied to a 5G (fifth generation mobile communication system) system, such as an access network using a new radio access technology (New RAT); a CRAN (Cloud Radio Access Network) Communication systems such as networks) can also be used for communication systems of more than 5G in the future.
  • 5G next generation mobile communication system
  • New RAT new radio access technology
  • CRAN Cloud Radio Access Network
  • a terminal also called a User Equipment (UE) is a device that provides voice and/or data connectivity to a user, for example, a handheld device with a wireless connection function, an in-vehicle device, and the like.
  • UE User Equipment
  • Common terminals include, for example, mobile phones, tablets, notebook computers, PDAs, mobile internet devices (MIDs), wearable devices such as smart watches, smart bracelets, pedometers, and the like.
  • MIDs mobile internet devices
  • wearable devices such as smart watches, smart bracelets, pedometers, and the like.
  • a base station also known as a radio access network (RAN) device
  • RAN radio access network
  • eNB evolved Node B
  • RNC Radio network controller
  • NB Node B
  • BSC Base Station Controller
  • BBU Base Transceiver Station
  • HNB BaseBand Unit
  • BBU Base Station
  • TRP Transmitting and Receiving Point
  • TP Transmitting Point
  • AP Wifi Access Point
  • RS sequences are all generated according to a slot number, for example, for a reference signal for indicating downlink channel state information, such as a channel state information reference (channel state information reference)
  • CSI-RS channel state information reference
  • n s is the slot number of the radio frame
  • m is the resource block (RB) number of the reference signal mapping
  • l is the symbol number.
  • c() is a reference signal initialization function defined by the protocol (for example, a pseudo-random number generation function or a non-pseudo-random number generation function, etc.)
  • c init is a c() function.
  • the initialization value called the reference signal initialization value, and:
  • n' s is a reference related to the slot number, which is calculated according to the slot number, specifically,
  • n uses the above values, otherwise the following values are used.
  • N CP is a cylic prefix (CP) identifier, The value configured for the base station through high layer signaling.
  • the default value is the cell identifier (ID).
  • c init is obtained according to n s , that is, the slot number, thereby making the RS sequence It is also based on the slot number, but in 5G, for the time unit, the slot is no longer used, but a time unit containing fewer symbols than the slot, specifically called a mini-slot, for example, a mini -slot contains 2, 4, etc., and a slot contains 7 or 14 symbols, so the number of symbols contained in the mini-slot is less than the number of symbols contained in the slot, and, in one A wireless frame can contain only one type of mini-slot or a mixture of multiple types of mini-slots.
  • a generation criterion of a cell-specific reference signal is:
  • n uses the above values, otherwise the following values are used.
  • n s is the slot number of the radio frame
  • m is the resource block (Resource Block, RB time) number of the reference signal mapping
  • l is the symbol number.
  • c() is the reference signal initialization function defined by the protocol (for example, a pseudo random number generation function or a non-pseudo random number generation function, etc.)
  • c init is an initialization value of the c() function, which is called reference signal initialization.
  • N CP is the CP logo, Indicates the cell ID.
  • c init is obtained according to n s , that is, the slot number, thereby making the RS sequence It is also based on the slot number.
  • DMRS downlink demodulation reference signal
  • c() is a reference signal initialization function defined by the protocol (for example, a pseudo random number generation function or a non-pseudo random number generation) Function, etc.), c init is the initialization value of the c() function, called the reference signal initialization value.
  • PDSCH downlink shared physical channel
  • the RS sequence r(m) is determined by the following formula:
  • the generator of the pseudo-random sequence c(i) is initialized by c init .
  • n SCID is the scrambling identifier.
  • c init is obtained according to n s , that is, the slot number, thereby making the RS sequence It is also based on the slot number.
  • the slot number is divided by 2 and rounded down, in order to generate the same RS sequence on the adjacent slot, so as to use the orthogonal cover code (Orthogonal Cover Code, OCC) keeps the RSs on adjacent slots orthogonal.
  • orthogonal cover code Orthogonal Cover Code, OCC
  • the uplink RS sequence is generated based on a ZC sequence (Zadoff-Chu sequence), and the generation of the ZC sequence does not depend on the slot number in the LTE protocol.
  • ZC sequence Zadoff-Chu sequence
  • the uplink RS generated by the ZC sequence is frequency hopping or mapped, the frequency hopping or mapping is related to the slot number, and the following formula is generated:
  • u denotes a sequence group number
  • f gh (n s ) denotes a group hopping pattern
  • f ss denotes a sequence shift pattern
  • c() represents a pseudo-random sequence
  • i is an integer value from 0 to 7
  • gh represents group hopping
  • n s represents the number of the slot.
  • the RS generation formula in the prior art adopts the RS formula defined in the LTE protocol, whether it is a downlink CSI-RS generation formula, a DMRS generation formula, a CRS generation formula, or an uplink sequence mapping, Use the slot number as one of the parameters.
  • the slot is divided into smaller time units in the current 5G communication, which is collectively referred to as a mini-slot in the embodiment of the present application, and since the mini-slot is a smaller unit than the slot, If the formula for generating RS is used without change, the RS sequence corresponding to multiple mini-slots in the same slot will be the same, thus affecting the randomization of interference.
  • an RS generation method is provided in the embodiment of the present application. As shown in FIG. 1 , the method is performed by the terminal side, and specifically includes:
  • Step 101 The terminal determines, according to the first parameter set, a reference signal sequence initialization value, where the first parameter set includes a number of time units, where the number of symbols included in the time unit is less than a symbol included in a time slot. number.
  • Step 102 The terminal generates an RS sequence according to the initialization value of the reference signal sequence.
  • the first reference set includes n RNTI , and the number of the time unit, which is still represented by n s in the embodiment of the present application.
  • the first parameter set is correspondingly a set of other parameters, but no matter what formula is generated RS, the first parameter set used contains the parameter of the time unit number.
  • the method of obtaining the parameters is changed. For example, taking the parameter of the time unit number as an example, the method of obtaining is no longer using the slot number as the value of the parameter n s , but according to The number of time units is obtained.
  • mini-slot will be used in the embodiment of the present application to indicate the time unit to which the embodiment of the present application applies.
  • the reference signal sequence initialization value is in a specific implementation manner, that is, the calculation method of c init appearing in the above formula.
  • the calculation of c init is not limited to the above several forms, and other calculation methods for c init also include Within the scope of protection of this application.
  • the following describes how to determine the number of time units in the first parameter set, that is, how to determine the value of n s in each RS sequence generation formula.
  • n s is the number of a mini-slot.
  • the number of the mini-slot may be notified to the terminal by the base station by means of signaling, for example, the signaling carries a parameter containing the number of the mini-slot, and the signaling carries a parameter RSgeneratorSlotnumber and a specific value corresponding to the parameter.
  • the value is used to indicate the number of the time unit. For example, the value ranges from 0 to 59, and 59 is an example.
  • the terminal can share multiple minis according to the same RS time domain location.
  • the number of the -slot is calculated to obtain the value of n s ; or the number of the multiple mini-slots sharing the location of one RS time domain is sent by the base station to the terminal, so that the terminal is based on the received multiple mini-slots.
  • the number is calculated to get the value of n s .
  • the signaling may be a radio resource control (RRC), a downlink control information (DCI), a MAC control (MAC CE) signaling, etc., of course, Other signalings are not limited in this embodiment of the present application.
  • RRC radio resource control
  • DCI downlink control information
  • MAC CE MAC control
  • FIG. 2 is a schematic diagram of a possible mini-slot provided by an embodiment of the present application, where an example is that each mini-slot includes 4 symbols, and mini-slot#0 and mini-slot.
  • #1 shares an RS time domain location
  • mini-slot#2 and mini-slot#3 share an RS time domain location
  • the terminal uses the time unit number when generating the RS sequence. This parameter may be based on sharing the RS.
  • the number of the time unit of the time domain location is determined, and the number of the time unit sharing the same RS time domain location may be a protocol pre-defined or the base station is sent by signaling, and is shared by mini-slot#0 and mini-slot#1.
  • the mini-slot#0 and mini-slot#1 may be sent by the base station through signaling or protocol pre-defined, when mini-slot#0 and mini-slot#1 are received by the terminal.
  • the signaling is obtained, after obtaining the signaling, the mini-slot#0 and the mini-slot#1 are obtained therefrom, and the parameter of the time unit number in the first parameter set (ie, n s ) is further obtained by the operation.
  • n s min(mini-slot#), where mini-slot# indicates the number of all time units sharing the same RS time domain location.
  • mini-slot#even represents the set of even numbers of time units
  • mini-slot#even+1 represents the even number of each time unit in the set of even numbers of time units.
  • the method for obtaining the event unit number in the first parameter set according to the number of multiple time units sharing the same RS time domain location in the embodiment of the present application is not limited to the foregoing.
  • the foregoing is only an example. Any method that can obtain the event unit number in the first parameter set according to the number of multiple time units sharing the same RS time domain location can be used in the embodiment of the present application.
  • the formula used in calculating the RS sequence is also time-dependent.
  • the numbering parameters of the unit are processed accordingly. For example, the number of the time unit is divided by 2 and then rounded down to ensure that the adjacent two slots can generate the same RS sequence.
  • n s is divided by 2 and rounded down.
  • the embodiment of the present application may appropriately modify the above formula according to the specific situation of the mini-slot sharing RS time domain location.
  • the numerology is a 2-symbol mini-slot
  • the first parameter set includes not only the number of the time unit, but further, the number of time units sharing the RS sequence in one or more time slots, that is, the M described above. Value.
  • M is equal to the number of time units sharing the RS sequence.
  • the multiple time slots may be consecutive multiple time slots, or may be multiple consecutive time slots.
  • a plurality of consecutive time slots may be two consecutive time slots, and a plurality of consecutive time slots are a plurality of time slots numbered discontinuous.
  • a plurality of slots that are not consecutive may also share an RS sequence, for example, slots 1 and 3 share an RS sequence located on slot 1 and the like.
  • DMRS design is to not use OCC, so there is no need for RS alignment of adjacent slots.
  • n SCID is the scrambling ID used by different users when the user is in the cell, and can only be configured as 0, 1,
  • the above description is for how to generate the RS sequence on the terminal side, and the base station side may generate the RS sequence by the same method, which will be described below.
  • FIG. 3 it is a schematic diagram of a method for generating an RS according to an embodiment of the present disclosure.
  • Step 301 The base station determines, according to the first parameter set, a reference signal sequence initialization value, where the first parameter set includes a time unit number, where the number of symbols included in the time unit is less than the number of symbols included in one slot. ;
  • Step 302 The base station generates an RS sequence according to the initialization value of the reference signal sequence.
  • the number of the time unit is determined according to the number of a time unit including the RS time domain location, or is determined according to at least two time unit numbers sharing the same RS time domain location.
  • the number of the time unit is determined according to at least two time unit numbers sharing the same RS time domain location, including:
  • the number of the time unit is equal to the smallest time unit number of the at least two time unit numbers, or the number of the time unit is equal to the largest time unit number of the at least two time unit numbers.
  • the first parameter set further includes a number of time units sharing the RS sequence in one or more time slots.
  • the method for generating the RS sequence on the base station side is the same as that on the terminal side, and is not described here.
  • the method for generating the RS sequence on the terminal side refers to the method for generating the RS sequence on the terminal side.
  • the base station side after generating the RS sequence, the base station side generates a reference signal according to the RS sequence, generates a reference signal by performing operations such as mapping on the reference signal sequence, and sends the generated reference signal to the terminal.
  • the terminal can obtain channel information that needs to be measured according to the received RS sequence and the locally generated RS sequence.
  • a receiving method of the reference signal RS is also included, as shown in FIG. 4, including:
  • Step 401 The terminal receives signaling from the base station, where the signaling is used to indicate an RS time domain location used by one or at least two time units, where the number of symbols of the time unit is less than the number of symbols of one slot. .
  • Step 402 The terminal receives the RS from the base station according to the signaling.
  • the terminal can receive signaling from the base station, thereby knowing the specific symbol position of the mapped RS according to the signaling, and receiving the RS from the obtained symbol position. Thereby achieving correct reception of the RS from the base station.
  • the implementation may be performed by multiple implementation manners.
  • the signaling may include information of the symbol K, where the information of the symbol K is continuous or discontinuous N time units.
  • the information of the symbol corresponding to the shared RS time domain location, in one possible design, the RS sequence may be shared by consecutive or discontinuous N time units.
  • N may pre-define its value in the protocol, or the signaling sent by the base station to the terminal may include information of N, such as a value indicating N.
  • the signaling includes a value of K
  • the terminal side pre-defines by the protocol or the base station sends out the number of the multiple time units sharing the same RS time domain location by using the signaling, for example, mini-slot# 0, mini-slot#1, mini-slot#2, mini-slot#3, and K is 10 (as an example), then the terminal is from mini-slot#0, mini-slot#1, mini-slot# 2.
  • the first symbol in mini-slot#3 starts, and the 10th symbol position in the future is the symbol position of the base station mapping RS sequence, so the terminal can receive the RS sequence on the base station side from the location.
  • the signaling sent by the base station may also be information including the time unit L and the information of the symbol P on the time unit L.
  • the time unit L is a continuous time domain location sharing the same RS.
  • the symbol P is the Pth symbol in the Lth time unit
  • K is an integer
  • N is a positive integer
  • L is not greater than N
  • P is not more than the number of symbols contained in the time unit.
  • the signaling indicates that the value of L is 2, and the value of P is 4, indicating that N time units sharing the same RS time domain location (eg, mini-slot#0, mini-slot#1)
  • the fourth symbol position of the second time unit in mini-slot#2 and mini-slot#3) is the symbol position of the base station mapping RS sequence, so the terminal receives the RS sequence of the base station side from the position.
  • N may pre-define its value in the protocol, or the signaling sent by the base station to the terminal may include information of N, such as a value indicating N.
  • a signaling may be separately sent for each mini-slot to indicate the RS time domain location information applicable to the mini-slot.
  • the signaling can be in the form of RRC, DCI or MAC CE.
  • the terminal may obtain channel information that needs to be measured according to the received RS sequence and the locally generated RS sequence.
  • the terminal side and the base station side generate an RS sequence in the same manner, and the base station also maps the generated RS sequence to a certain symbol position, and then sends the RS sequence to the terminal, and the terminal finds the symbol position and receives the base station side.
  • the RS sequence and further based on the received RS sequence of the base station side and the locally generated RS sequence, obtain channel information that needs to be measured.
  • the symbol locations of the RSs may be received by a plurality of time units pre-defined by the protocol or sharing the same RS time domain location, so that the terminal may receive the RS from the symbol positions predefined by the protocol.
  • the terminal may determine the reference signal sequence initialization value according to the first parameter set, and generate an RS sequence according to the reference signal sequence initialization value, and specifically, may be applied to the CSI-RS sequence generation, the CRS sequence generation, and the DMRS sequence.
  • the parameters included in the first parameter set may refer to parameters used in the existing existing RS sequence generation formula, for example, for the generation of the CSI-RS sequence
  • the first used The parameter set may refer to the parameter set in the formula used in generating the CSI-RS sequence in the LTE, but different from the parameter set used by the LTE to generate the CSI-RS sequence, the first parameter used in the embodiment of the present application
  • the set contains the time number, and the number of symbols included in the time unit is less than the number of symbols included in one slot, and the time unit used in generating the CSI-RS sequence in LTE is the slot itself, due to the 5G communication.
  • the time unit no longer uses the slot, but uses less time units than the number of symbols included in the slot, so in order to adapt to one In the communication system, the RS sequence can be correctly generated.
  • the RS sequence when the RS sequence is generated, the RS sequence is generated by the time unit in the communication system, so that the RS sequence can be correctly generated under the communication system.
  • the embodiment of the present application further provides a reference signal RS generating method, where the method is performed by a network side device (such as a base station), or a relay, or a terminal, including:
  • Step 501 The first device determines, according to the second parameter set, a reference signal sequence initialization value.
  • Step 502 The first device generates an RS sequence according to the reference signal sequence initialization value.
  • the embodiment of the present application is still based on the formula of the RS sequence generated in the existing protocol.
  • the second parameter set is related to the time unit related parameters, which can be divided into two situations.
  • the second parameter set includes the first parameter
  • the first parameter is a parameter related to the number of the time unit, and the number of the time unit is related to the type of the time unit. Wherein, one time unit contains one or more symbols, and different time unit types contain different numbers of symbols.
  • the definition of the time unit in the RS generation method shown in FIG. 5 is different from the definition of the time unit in the RS generation method of FIGS. 1 and 3, and in FIG. 1 and FIG. 3, the time unit The number of symbols included is less than the number of symbols included in the slot.
  • the number of symbols included in the time unit may be equal to the number of symbols in the slot, or may be greater than the number of slots, or may be smaller than the number of slots.
  • the slot contains 7 symbols or contains 14 symbols.
  • the type of the time unit is determined according to the number of symbols included in the time unit. For example, if the time unit contains 7 symbols or 14 symbols, the time unit containing 7 symbols is one type, and the time unit containing 14 symbols is A type.
  • n 's of the present application is the first parameter of the second embodiment of the parameter set, the parameter is determined according to the number of time units, and the number of time units is determined according to the type of time unit.
  • the second parameter set includes the second parameter and the third parameter
  • the second parameter is a parameter related to the type of the time unit
  • the third parameter is a parameter related to the number of the time unit.
  • the third parameter is similar to the first parameter in the first case, and is a parameter related to the number of the time unit, that is, n' s in the above formula (of course, the above formula is only an example, and is not limited to the above formula).
  • the second parameter may be represented by N slot .
  • the case where the type of the time unit includes 7 symbols and includes 14 symbols is taken as an example.
  • the case where the type of the time unit includes 7 symbols and includes 14 symbols is taken as an example.
  • the first device may determine the reference signal sequence initialization value according to the second parameter set, and generate an RS sequence according to the reference signal sequence initialization value, where the second parameter set includes the first parameter, or includes the second parameter and the a three parameter, wherein the first parameter is a parameter related to the number of the time unit, the second parameter is a parameter related to the type of the time unit, and the third parameter is a parameter related to the number of the time unit, thereby being based on the number of the time unit Or the RS sequence is obtained based on the type of the time unit and the number of the time unit.
  • the manner of generating the corresponding RS sequence is different in the numbering manner of different time units. Therefore, the numbering manner of the time unit in the embodiment of the present application is first described below.
  • the time unit is exemplified by a slot, and the number of symbols included in one slot is 7 or 14 as an example.
  • the slot containing the 7 symbols is referred to as a reference slot (or a reference slot unit).
  • the time unit including the number of other symbols may be used as a reference slot, which is not limited in this embodiment of the present application. It can be understood that the embodiment of the present invention can also be applied to a time unit other than a slot.
  • a time unit includes a time unit with fewer symbols than a slot, such as a mini-slot, and details are not described herein.
  • the type of the reference time unit is a network side configuration or a predefined time unit type.
  • the first device determines the number of the time unit according to the type of the time unit.
  • the first slot numbering method determines the number of the slot in the radio frame according to the number of symbols corresponding to the type of the slot, or the number of symbols corresponding to the type of the slot, and the slot number.
  • the sequence number of the subframe determines the number of the slot in the radio frame.
  • the slot containing 7 symbols and the slot containing 14 symbols are numbered sequentially, specifically, for a slot containing 7 symbols, it is sequentially numbered 0, 1, 2, 3, 4, 5,... ..., likewise, for a slot containing 14 symbols, it is also numbered 0, 1, 2, 3, 4, 5, ....
  • a radio frame has 10 subframes, each subframe contains 2 slots, and each slot contains the same symbol (for example, 7 symbols or 14 symbols), and the 2nd subframe is the 2nd subframe.
  • a second slot numbering manner is provided according to an embodiment of the present application.
  • the numbering manner is to determine the slot number according to the number of symbols corresponding to the type of the slot and the number of symbols corresponding to the type of the reference slot; or, according to the slot.
  • the time unit is mixed with the reference time unit, for example, for a time unit containing 7 symbols, it is numbered sequentially, and for a time unit including 14 symbols, since two sub-units are included, one reference time unit is respectively corresponding. Therefore, it can correspond to two numbers.
  • the number is specific, one of them can be selected as the number of the time unit.
  • the number of the time unit if the first number is selected as the number of the time unit, of course, other numbers may be selected as the number of the time unit. Referring to FIG. 7, for the slot containing 7 symbols, the numbers are 0, 1, respectively.
  • the slot containing 14 symbols includes two subunits, and thus can correspond to two numbers, for example, 2 and 3, respectively.
  • the time slot (slot) may be numbered 2 or 3, depending on the actual situation.
  • a third slot numbering manner is provided in the embodiment of the present disclosure.
  • the numbering manner is to determine the number of the slot in the radio frame according to the number of symbols and the number interval corresponding to the type of the slot; or, according to the type of the slot.
  • the number of the symbol, the sequence number of the subframe in which the slot is located, and the number interval, and the number of the slot in the radio frame is determined.
  • the number interval is determined by the first device according to the number of symbols corresponding to the type of the slot and the number of symbols corresponding to the type of the reference slot.
  • the type of reference time unit is configured or predefined on the base station side.
  • N symbol is the number of symbols contained in the slot.
  • N symbol is the number of symbols contained in the slot.
  • one slot may correspond to one or more time units, and each subunit corresponds to one reference time unit, and each subunit has a corresponding one.
  • the number of the time unit specifically, determining the number of the slot according to the number of symbols corresponding to the type of the slot; or,
  • the number of the slot is determined according to the number of symbols corresponding to the type of the slot and the sequence number of the subframe in which the slot is located.
  • each subunit corresponds to a number.
  • the reference signal sequence initialization value may be further determined according to the slot after the numbering.
  • the first parameter is a parameter related to the number of time units to generate the CSI-RS Equation an example, the first parameter in which the n 's, i.e. according to the numbering unit time, is determined n' s, and further The reference signal sequence initialization value is determined according to the determined n 's and other parameters in the second parameter set.
  • the calculation method of the first case is applicable to the slot number 2 and the slot numbering manner 4 described above. Specifically, the formula for generating the initialization value of the reference signal sequence in the existing protocol may still be used, that is,
  • n' s is the first parameter
  • the first parameter is determined according to the number of the time unit
  • the number of the time unit is determined according to the above numbering mode 2 and numbering mode 4.
  • the above description is based on the CSI-RS generation formula.
  • the present invention is not limited to the CSI-RS generation formula, and may be applied to other RS sequence generation formulas.
  • the second parameter set includes the second parameter and the third parameter
  • the third parameter is a number of the time unit, the number of the time unit is sequentially numbered by a natural number, or the third parameter is corresponding to the type of the time unit according to the number of the time unit.
  • the number of symbols and the number of symbols corresponding to the type of the reference time unit are determined, and the number of the time unit is determined according to the number of symbols and the number interval corresponding to the type of the time unit, and the number interval is according to the type and location of the time unit.
  • the type of the reference time unit is determined, and the type of the reference time unit is configured or predefined on the base station side.
  • the second parameter is determined according to the type of the time unit.
  • the third parameter is the number of the time unit, it corresponds to the above numbering mode one, and correspondingly, the generating manner of c init in the CSI-RS generating formula can be modified to:
  • n' s is the third parameter, and n' s is equal to the number of the time unit, and N slot is the second parameter, which is based on the time list.
  • the type of meta is determined.
  • the third parameter is a number of time units, the number of time units corresponding to the symbol type, and the type of the corresponding reference symbol time unit determines, as a possible design, the third parameter is determined using the following equation n 's:
  • slot is the number of the time unit.
  • the embodiment of the present application further provides a method for calculating a reference signal sequence initialization value, and taking CSI-RS as an example, the calculation formula of the CSI-RS in the existing protocol:
  • a schematic diagram of a frequency domain resource number provided by an embodiment of the present application takes CSI-RS as an example.
  • subcarrier spacings e.g, 15 kHz, 30 kHz
  • PRB physical resource block
  • Sub6GHz is taken as an example, and 15 kHz is selected as a reference numerology or a reference subcarrier interval, and a reference signal sequence is determined according to a maximum RB number (maximum system bandwidth) corresponding to 15 kHz.
  • the pilot value on the RE is determined according to the relationship between the current 30 kHz and the reference numerology/subcarrier spacing, ie, 30 kHz and 15 kHz, as shown in FIG. 10, for the second RB on 30 kHz.
  • the frequency value is the same as the pilot value on the third RB of 15 kHz.
  • a CSI-RS mapping method provided in LTE is:
  • the number of RBs for the maximum bandwidth of the downlink For the number of RBs of the system bandwidth, m' is the sequence number of the reference signal sequence element within the system bandwidth, m is the sequence number of the reference signal sequence element within the maximum downlink bandwidth, and w l" is the orthogonal cover code coefficient, Is the signal mapped to the reference signal RE.
  • mapping method can be:
  • n is the subcarrier spacing of the current pilot and f ref is the reference subcarrier spacing.
  • the embodiments of the present application support pilot mapping in different subcarriers, Frequency Division Multiplexing (FDM), and ensure that sequences on different RBs are different.
  • FDM Frequency Division Multiplexing
  • the RBs in the system bandwidth in which different subcarrier intervals exist simultaneously may be numbered, and the number is guaranteed to be non-repetitive.
  • the embodiment of the present application further provides a base station 1100.
  • FIG. 11 it is a schematic structural diagram of a base station 1100.
  • the base station 1100 can be applied to perform the methods shown in FIG. 3 and FIG. 5.
  • the base station 1100 includes one or more remote radio units (RRUs) 1101 and one or more baseband units (BBUs) 1102.
  • RRUs remote radio units
  • BBUs baseband units
  • the RRU 1101 may be referred to as a transceiver unit, a transceiver, a transceiver circuit, or a transceiver, etc., which may include at least one antenna 11011 and a radio frequency unit 11012.
  • the RRU 1101 is mainly used for transmitting and receiving radio frequency signals and converting radio frequency signals and baseband signals, for example, for transmitting the signaling indications described in the foregoing embodiments to user equipments (ie, terminals).
  • the BBU 1102 part is mainly used for performing baseband processing, controlling a base station, and the like.
  • the RRU 1101 and the BBU 1102 may be physically disposed together or physically separated, that is, distributed base stations.
  • the BBU 1102 is a control center of a base station, and may also be referred to as a processing unit, and is mainly used to perform baseband processing functions such as channel coding, multiplexing, modulation, spreading, and the like.
  • the BBU processing unit
  • the BBU 1102 may be composed of one or more boards, and multiple boards may jointly support a single access standard radio access network (such as an LTE network), or may separately support different access modes of wireless. Access Network.
  • the BBU 1102 also includes a memory 11021 and a processor 11022.
  • the memory 11021 is used to store necessary instructions and data.
  • the memory 11021 stores the parameter set (including the first parameter set and the second parameter set) in the above embodiment, and the generated RS sequence.
  • the processor 11022 is configured to control the base station to perform necessary actions, such as for controlling the actions of the base station as shown in FIG. 3 and FIG. 5.
  • the memory 11021 and the processor 11022 can serve one or more boards. That is, the memory and processor can be individually set on each board. It is also possible that multiple boards share the same memory and processor.
  • the necessary circuits are also provided on each board.
  • user equipment 1200 is a schematic structural diagram of the user equipment UE, as shown in FIG.
  • Figure 12 shows only the main components of the user equipment.
  • user equipment 1200 includes a processor, a memory, a control circuit, an antenna, and input and output devices.
  • the processor is mainly used for processing the communication protocol and the communication data, and controlling the entire user equipment, executing the software program, and processing the data of the software program, for example, for supporting the UE to execute FIG. 1, FIG. 4, and FIG.
  • the memory is primarily used to store software programs and data, such as the codebooks described in the above embodiments.
  • the control circuit is mainly used for converting baseband signals and radio frequency signals and processing radio frequency signals.
  • the control circuit together with the antenna can also be called a transceiver, and is mainly used for transmitting and receiving RF signals in the form of electromagnetic waves.
  • it can be used to perform part 402 of FIG. 4, and receive signaling indications and/or reference signals sent by the base station.
  • Input and output devices such as touch screens, display screens, keyboards, etc., are primarily used to receive user input data and output data to the user.
  • the processor can read the software program in the storage unit, interpret and execute the instructions of the software program, and process the data of the software program.
  • the processor performs baseband processing on the data to be sent, and then outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit performs radio frequency processing on the baseband signal, and then sends the radio frequency signal to the outside through the antenna in the form of electromagnetic waves.
  • the RF circuit receives the RF signal through the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to the processor, which converts the baseband signal into data and processes the data.
  • FIG. 12 shows only one memory and processor for ease of illustration. In an actual user device, there may be multiple processors and memories.
  • the memory may also be referred to as a storage medium or a storage device, and the like.
  • the processor may include a baseband processor and a central processing unit, and the baseband processor is mainly used to process communication protocols and communication data, and the central processing unit is mainly used to control and execute the entire user equipment.
  • the processor in FIG. 12 integrates the functions of the baseband processor and the central processing unit.
  • the baseband processor and the central processing unit can also be independent processors and interconnected by technologies such as a bus.
  • the user equipment may include a plurality of baseband processors to accommodate different network standards, and the user equipment may include a plurality of central processors to enhance its processing capabilities, and various components of the user equipment may be connected through various buses.
  • the baseband processor can also be expressed as a baseband processing circuit or a baseband processing chip.
  • the central processing unit can also be expressed as a central processing circuit or a central processing chip.
  • the functions of processing the communication protocol and the communication data may be built in the processor, or may be stored in the storage unit in the form of a software program, and the processor executes the software program to implement the baseband processing function.
  • the antenna and control circuit having the transceiving function can be regarded as the transceiving unit 1201 of the UE 1200, and the processor having the processing function is regarded as the processing unit 1202 of the UE 1200.
  • the UE 1200 includes a transceiver unit 1201 and a processing unit 1202.
  • the transceiver unit can also be referred to as a transceiver, a transceiver, a transceiver, and the like.
  • the device for implementing the receiving function in the transceiver unit 1201 can be regarded as a receiving unit, and the device for implementing the sending function in the transceiver unit 1201 is regarded as a sending unit, that is, the transceiver unit 1201 includes a receiving unit and a sending unit.
  • the receiving unit may also be referred to as a receiver, a receiver, a receiving circuit, etc.
  • the transmitting unit may be referred to as a transmitter, a transmitter, or a transmitting circuit.
  • the embodiment of the present application further provides an apparatus, which may be a base station or a UE.
  • the apparatus at least includes a processor 1301 and a memory 1302, and further includes a transceiver. 1303, and may also include a bus 1304.
  • the processor 1301, the memory 1302, and the transceiver 1303 are all connected by a bus 1304;
  • the memory 1302 is configured to store a computer execution instruction
  • the processor 1301 is configured to execute a computer execution instruction stored by the memory 1302.
  • the processor 1301 executes a computer-executed instruction stored in the memory 1302, so that the device 1300 performs the steps performed by the base station in the content request method provided by the embodiment of the present application, or causes the base station to Deploy the functional unit corresponding to this step.
  • the processor 1301 executes a computer execution instruction stored in the memory 1302, so that the device 1300 performs the steps performed by the terminal in the content request method provided by the embodiment of the present application, or causes the terminal to Deploy the functional unit corresponding to this step.
  • the processor 1301 may include different types of processors 1301 or include the same type of processor 1301; the processor 1301 may be any one of the following: a central processing unit (CPU), an ARM processor, and a field. A device with computational processing capability, such as a Field Programmable Gate Array (FPGA) or a dedicated processor. In an optional implementation manner, the processor 1301 may also be integrated into a many-core processor.
  • processors 1301 may be any one of the following: a central processing unit (CPU), an ARM processor, and a field.
  • a device with computational processing capability such as a Field Programmable Gate Array (FPGA) or a dedicated processor.
  • FPGA Field Programmable Gate Array
  • the processor 1301 may also be integrated into a many-core processor.
  • the memory 1302 may be any one or any combination of the following: a random access memory (RAM), a read only memory (ROM), a non-volatile memory (non-volatile memory). , referred to as NVM), Solid State Drives (SSD), mechanical hard disks, disks, disk arrays and other storage media.
  • RAM random access memory
  • ROM read only memory
  • NVM non-volatile memory
  • SSD Solid State Drives
  • the transceiver 1303 is configured to perform data interaction between the device 1300 and other devices; for example, if the device 1300 is a base station, the base station can perform the method described in FIG. 3 and FIG. 5; the base station performs data interaction with the terminal through the transceiver 1303; 1300 is a terminal, the terminal may perform the method described in FIG. 1 , FIG. 4 and FIG. 5; the terminal performs data interaction with the base station through the transceiver 1303; the transceiver 1303 may be any one or any combination of the following: a network A device with network access function such as an interface (such as an Ethernet interface) or a wireless network card.
  • a network A device with network access function such as an interface (such as an Ethernet interface) or a wireless network card.
  • the bus 1304 can include an address bus, a data bus, a control bus, etc., for ease of representation, Figure 13 shows the bus with a thick line.
  • the bus 1304 may be any one or any combination of the following: an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, and an extended industry standard structure ( Extended Industry Standard Architecture (EISA) bus and other devices for wired data transmission.
  • ISA Industry Standard Architecture
  • PCI Peripheral Component Interconnect
  • EISA Extended Industry Standard Architecture
  • the embodiment of the present application provides a computer-readable storage medium, where the computer-readable storage medium stores a computer-executed instruction; the processor of the base station or the terminal executes the computer to execute the instruction, so that the base station or the terminal performs the foregoing method provided by the embodiment of the present application.
  • Embodiments of the present application provide a computer program product comprising computer executed instructions stored in a computer readable storage medium.
  • the processor of the base station or the terminal can read the computer to execute the instruction from the computer readable storage medium; the processor executes the computer to execute the instruction, so that the base station or the terminal performs the steps performed by the base station or the terminal in the foregoing method provided by the embodiment of the present application, Or, the base station or the terminal is configured to deploy the functional unit corresponding to the step.
  • a general purpose processor may be a microprocessor.
  • the general purpose processor may be any conventional processor, controller, microcontroller, or state machine.
  • the processor may also be implemented by a combination of computing devices, such as a digital signal processor and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a digital signal processor core, or any other similar configuration. achieve.
  • the steps of the method or algorithm described in the embodiments of the present invention may be directly embedded in hardware, a software unit executed by a processor, or a combination of the two.
  • the software unit can be stored 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 in the art.
  • the storage medium can be coupled to the processor such that the processor can read information from the storage medium and can write information to the storage medium.
  • the storage medium can also be integrated into the processor.
  • the processor and the storage medium may be disposed in an ASIC, and the ASIC may be disposed in the UE. Alternatively, the processor and the storage medium may also be located in different components in the UE.
  • the above-described functions described in the embodiments of the present invention may be implemented in hardware, software, firmware, or any combination of the three. If implemented in software, these functions may be stored on a computer readable medium or transmitted as one or more instructions or code to a computer readable medium.
  • Computer readable media includes computer storage media and communication media that facilitates the transfer of computer programs from one place to another.
  • the storage medium can be any available media that any general purpose or special computer can access.
  • Such computer-readable media can include, but is not limited to, RAM, ROM, EEPROM, CD-ROM or other optical disk storage, disk storage or other magnetic storage device, or any other device or data structure that can be used for carrying or storing Other media that can be read by a general purpose or special computer, or a general purpose or special processor.
  • any connection can be appropriately defined as a computer readable medium, for example, if the software is from a website site, server or other remote source through a coaxial cable, fiber optic computer, twisted pair, digital subscriber line (DSL) Or wirelessly transmitted in, for example, infrared, wireless, and microwave, is also included in the defined computer readable medium.
  • DSL digital subscriber line
  • the disks and discs include compact disks, laser disks, optical disks, DVDs, floppy disks, and Blu-ray disks. Disks typically replicate data magnetically, while disks typically optically replicate data with a laser. Combinations of the above may also be included in a computer readable medium.

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

Abstract

L'invention concerne un procédé de production et de réception de RS, un terminal et une station de base. Un terminal peut déterminer une valeur d'initialisation d'une séquence de signaux de référence selon un premier ensemble de paramètres, et produire une séquence de RS en fonction de la valeur d'initialisation de la séquence de signaux de référence. Le premier ensemble de paramètres utilisé dans les modes de réalisation de la présente invention comprend un numéro de série d'une unité de temps, et le nombre de symboles inclus dans l'unité de temps est inférieur au nombre de symboles inclus dans un créneau. La séquence de RS fournie dans les modes de réalisation de la présente invention est applicable à des systèmes de communication 5G ou futurs.
PCT/CN2018/074199 2017-01-25 2018-01-25 Procédé de production et de réception de rs, et terminal et station de base WO2018137688A1 (fr)

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