WO2018082696A1 - Procédé et dispositif basés sur un livre de codes, pour un retour d'informations d'état de canal - Google Patents

Procédé et dispositif basés sur un livre de codes, pour un retour d'informations d'état de canal Download PDF

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Publication number
WO2018082696A1
WO2018082696A1 PCT/CN2017/109561 CN2017109561W WO2018082696A1 WO 2018082696 A1 WO2018082696 A1 WO 2018082696A1 CN 2017109561 W CN2017109561 W CN 2017109561W WO 2018082696 A1 WO2018082696 A1 WO 2018082696A1
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Prior art keywords
quasi
terminal device
access network
network device
type
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PCT/CN2017/109561
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English (en)
Chinese (zh)
Inventor
纪刘榴
黄逸
任海豹
李元杰
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华为技术有限公司
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Priority claimed from CN201710687305.8A external-priority patent/CN108024274B/zh
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP17867615.1A priority Critical patent/EP3534637B1/fr
Priority to BR112019008817A priority patent/BR112019008817A2/pt
Publication of WO2018082696A1 publication Critical patent/WO2018082696A1/fr
Priority to US16/401,802 priority patent/US11463132B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/04—Arrangements for maintaining operational condition

Definitions

  • the present application relates to the field of wireless communication technologies, and in particular, to a data transmission method, apparatus, and system in a wireless communication system.
  • a transmission point Transmit-Receiving Point, abbreviated: TRP
  • TRP Transmission-Receiving Point
  • the channel large-scale characteristic parameters are divided into different categories according to functions, corresponding to different quasi-co-location types, and multiple groups are configured for each quasi-co-location type.
  • the configuration parameter is configured to notify the terminal device by using a plurality of configuration parameters configured by the at least two quasi-co-location types, so that the terminal device learns at least two antenna ports corresponding to the co-location of the large-scale characteristic parameters of different types of channels, thereby
  • the configuration of quasi-co-location in the communication system is more suitable for cooperative transmission in the 5G new wireless technology, and has greater flexibility.
  • the present invention provides a wireless communication data transmission method, including: a radio access network device sends a first signaling to a terminal device, where the first signaling includes a first quasi co-location type, The first quasi co-location type is associated with the at least one set of configuration parameters, and the first signaling further includes the at least one set of configuration parameters associated with the first quasi co-location type; the first quasi co-location type is preset One of at least two quasi-co-location types, and each of the pre-set quasi-co-location types is associated with at least one channel large-scale characteristic parameter; the first quasi-co-location type is associated with the first a channel-like large-scale characteristic parameter, the first-type channel large-scale characteristic parameter includes at least one channel large-scale characteristic parameter; and the radio access network device passes the first signaling to facilitate the first quasi-co-location
  • the first group of configuration parameters of the at least one set of configuration parameters associated with the type are applied by the terminal device, thereby facilitating quasi-common in the case of at least one channel large-scale characteristic parameter
  • the radio access network device after the radio access network device sends the first signaling to the terminal device, the radio access network device sends the second signaling to the terminal device.
  • the second signaling includes a second quasi co-location type, the second quasi co-location type is associated with at least one set of configuration parameters, and the second signaling further includes the second quasi co-location type associated with Determining at least one set of configuration parameters; the second quasi co-location type is one of the preset at least two quasi co-location types; and the second quasi co-location type is associated with a second type channel large scale characteristic parameter
  • the second type channel large-scale characteristic parameter includes at least one channel large-scale characteristic parameter; the radio access network device passes the first signaling and the second signaling to facilitate the first group configuration
  • the parameter, and the second set of configuration parameters of the at least one set of configuration parameters associated with the second quasi co-location type are all applied by the terminal device, such that, in the case of the first type channel large-scale characteristic parameter At least two antennas of quasi co-location Port, and at least two
  • the design divides the large-scale characteristic parameters of the channel into different categories according to functions, corresponding to different quasi-co-location types, and configures multiple sets of configuration parameters for each quasi-co-location type, and configures at least two quasi-co-location types.
  • the configuration parameter informs the terminal device by signaling, so that the terminal device can learn at least two quasi-co-located antenna ports corresponding to large-scale characteristic parameters of different types of channels, thereby making the configuration of the quasi-co-location in the communication system more suitable for the 5G new wireless technology. Cooperative transmission in the middle, with greater flexibility.
  • the effective time refers to the time when the QCL configuration information can be applied by the terminal device.
  • the method for obtaining the information of the effective time of the terminal is not limited.
  • the configuration information feature associated with the quasi co-location type includes the feature of the configuration information of the reference signal associated with the configuration information associated with the quasi co-location type, and may be a type of the reference signal, an ID, a time-frequency resource location, a time-frequency resource density, Pilot pattern, etc.
  • the signaling overhead is large for the system, and the physical layer bearer causes the system to be burdened too much, and the system configuration
  • the information may not need to be valid in real time, so at least one of the first signaling and the second signaling may be implemented by using high layer signaling.
  • the access network device after the radio access network device sends the second signaling to the terminal device, the access network device sends the second indication information to the terminal device,
  • the second indication information is used to instruct the terminal device to apply the second group configuration parameter from the at least one set of configuration parameters associated with the second quasi co-location type.
  • the network side indicates that the terminal device can select and apply a set of suitable configuration parameters from the plurality of sets of configuration parameters associated with the second quasi co-location type.
  • the first set of configuration parameters that are applied carries the first effective time index
  • the first effective time indication information is used to indicate the effective time of the first set of configuration parameters of the terminal device, so that at least two antenna ports are quasi-co-located in the case of the first type of large-scale characteristic parameters.
  • the effective time of the terminal device is known by the terminal device; and/or the second set of configuration parameters is used to carry the second effective time indication information, where the second effective time indication information is used to indicate the terminal device
  • the effective time of the second set of configuration parameters is such that the effective time of at least two antenna port quasi-co-locations is known by the terminal device in the case of the second type of large-scale characteristic parameters.
  • the first-type channel large-scale characteristic parameter is a parameter that characterizes a beam space feature, and includes any one or any combination of the following: an Angle of Arival (AoA). , Angle of Arival Apread (AoAS), Angle of Departure (AoD), Angle of departure spread (AoDS), Receive Antenna Spatial Correlation (Receiving Antenna Spatial Correlation) ).
  • AoA Angle of Arival Apread
  • AoD Angle of Departure
  • AoDS Angle of departure spread
  • Receive Antenna Spatial Correlation Receive Antenna Spatial Correlation
  • Time-expansion, Doppler spread, Doppler shift, average channel gain, and average delay are used to decouple the groupings to form a parameter set with no overlapping QCL types.
  • the distinguishing of the function by the configuration information of the reference signal may mean that the function of the reference signal can be distinguished according to the reported configuration information associated with the reference signal.
  • the reference signal when the reference signal is configured to report the RSRP, the reference signal is a signal for beam management; when the reference signal is configured with a CSI information reporting indication, the reference signal is used to obtain signal quality.
  • the reference signal can be distinguished based on other configuration information associated with the reference signal. For example, when the period configured according to the reference signal, the time-frequency resource density, and the like, it can be known that the reference signal is a reference signal for functions such as frequency offset/timing estimation, channel estimation, and the like.
  • at least one channel large-scale characteristic parameter associated with the quasi-co-location type has a corresponding relationship with a reference signal corresponding to the configuration information in the quasi-co-location type.
  • the terminal device further receives, from the radio access network device, a second signaling, where the second signaling includes a second quasi co-location type, the second quasi co-location type is associated with at least one set of configuration parameters, and the second signaling further includes the second quasi co-location
  • the design divides the large-scale characteristic parameters of the channel into different categories according to functions, corresponding to different quasi-co-location types, and configures multiple sets of configuration parameters for each quasi-co-location type, and configures at least two quasi-co-location types.
  • the configuration parameter informs the terminal device by signaling, so that the terminal device can learn at least two quasi-co-located antenna ports corresponding to large-scale characteristic parameters of different types of channels, thereby making the configuration of the quasi-co-location in the communication system more suitable for the 5G new wireless technology. Cooperative transmission in the middle, with greater flexibility.
  • the signaling overhead is large for the system, and the physical layer bearer causes the system to be burdened too much, and the system configuration
  • the information may generally not need to be valid in real time, so at least one of the first signaling and the second signaling may be implemented by employing higher layer signaling in a wireless communication system.
  • the terminal device after the terminal device receives the first signaling sent by the radio access network device, the terminal device further receives the device from the access network. Transmitting the first indication information, the first indication information is used to indicate that the terminal device applies the first group configuration parameter from the first quasi co-location type associated with the at least one set of configuration parameters. In this way, the terminal device can select and apply a set of suitable configuration parameters from the plurality of sets of configuration parameters associated with the first quasi co-location type through the indication information sent by the network side.
  • the terminal device further receives the device from the access network.
  • the second indication information is used to instruct the terminal device to apply the second group configuration parameter from the at least one set of configuration parameters associated with the second quasi co-location type.
  • the terminal device can select and apply a set of suitable configuration parameters from the plurality of sets of configuration parameters associated with the second quasi co-location type through the indication information sent by the network side.
  • the first indication information and the second indication information are carried in the high layer signaling, and the terminal device receives the high layer signaling sent by the radio access network device to obtain the first indication.
  • the information and the second indication information for example, the indication information of the similar function, are sent to the terminal device by using Radio Resource Control (RRC), which is carried in an LTE-like system.
  • RRC Radio Resource Control
  • the first set of configuration parameters is used to carry the first effective time indication information, where the first effective time indication information is used to indicate the first group of the terminal device.
  • Setting the effective time of the parameter so that the terminal knows the effective time of at least two antenna port quasi co-locations in the case of the first type of large-scale characteristic parameter; and/or, the second set of configuration parameters to be carried in the application a second effective time indication information, where the second effective time indication information is used to indicate an effective time of the second set of configuration parameters of the terminal device, so that the terminal learns at least the second type of large-scale characteristic parameters
  • the effective time of the quasi-co-location of the two antenna ports is used to carry the first effective time indication information, where the first effective time indication information is used to indicate the first group of the terminal device.
  • the terminal device further receives the first effective time indication signaling sent by the access network device, where the first effective time indication signaling is used to indicate the terminal device
  • the first set of configuration parameters The effective time of the terminal device, so that the terminal device can know the effective time of at least two antenna port quasi co-locations in the case of the first type of large-scale characteristic parameters; and/or the terminal device further receives the access a second effective time indication signaling sent by the network device, where the second effective time indication signaling is used to indicate an effective time of the second set of configuration parameters of the terminal device, so that the terminal device can learn the The effective time of at least two antenna port quasi co-locations in the case of the second type of large-scale characteristic parameters.
  • the present application provides a radio access network device including at least one processor, a transceiver, a memory, a bus, the at least one processor, the transceiver and the memory through the bus
  • the transceiver is configured to communicate between the wireless access network device and other devices
  • the memory is configured to store instructions, when the wireless access network device is in operation, the at least one processor performs the An instruction stored in the memory to cause the wireless access network device to perform any of the methods of the first aspect.
  • the application provides a terminal device including at least one processor, a transceiver, a memory, a bus, the at least one processor, the transceiver and the memory are communicated through the bus, and the transceiver Means for communicating between the terminal device and other devices, the memory for storing instructions, when the terminal device is running, the at least one processor executes an instruction stored in the memory, so that the terminal device Performing any of the methods of the second aspect.
  • the present application provides a system chip for use in a radio access network device, the system chip including at least one processor, a communication interface, a memory, a bus, the at least one processor, the communication interface, and the communication interface Communicating via the bus, the communication interface for communicating between the system chip and other devices, the memory for storing instructions, the at least one processor executing the memory when the system chip is running An instruction stored in the radio access network device to perform any of the methods of the first aspect.
  • the present application provides a communication system, comprising the radio access network device and the terminal device according to the third aspect and the fourth aspect.
  • the present application provides a computer storage medium for storing computer software instructions for use in the wireless access network device, comprising a program designed to perform the method of any of the above first aspects.
  • the present application provides a computer storage medium for storing computer software instructions for use in the terminal device, comprising a program designed to perform the method of any of the above second aspects.
  • Two devices having the same functions as the above-mentioned radio access network device and terminal device can be applied to communication design between a typical wireless base station and a mobile phone, or can be applied to a device to device (D2D) or machine pair.
  • the communication design in the Machine to Machine (M2M) scenario can also be applied between network side devices.
  • Communication such as communication design between a macro base station and an access point.
  • FIG. 2 is a schematic flowchart of a method for transmitting wireless communication data according to an embodiment of the present application
  • FIG. 3 is a schematic diagram of a QCL configuration in a wireless communication data transmission method according to an embodiment of the present disclosure
  • FIG. 5 is a schematic block diagram of a radio access network device according to an embodiment of the present application.
  • FIG. 6 is a schematic block diagram of a terminal device according to an embodiment of the present application.
  • FIG. 8 is a schematic block diagram of a terminal device according to an embodiment of the present application.
  • the network architecture and the service scenario described in the embodiments of the present application are for the purpose of more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute a limitation of the technical solutions provided by the embodiments of the present application.
  • the technical solutions provided by the embodiments of the present application are equally applicable to similar technical problems.
  • the techniques described in this application can be applied to LTE systems and subsequent evolved systems such as the 5th Generation mobile communication (5G), etc., or other Orthogonal Frequency Division Multiplexing (OFDM) access.
  • the technical wireless communication system is especially suitable for communication systems involving antenna port quasi-co-location design.
  • FIG. 1 it is a schematic diagram of a possible application scenario of the present application.
  • the terminal device when the terminal device is a user equipment (User Equipment, UE for short)
  • the user equipment (such as the figure: 101) accesses the network side device (such as the icon: 102) through the wireless interface for communication, and can also communicate with another user equipment, such as Device to Device (D2D) or Communication in a Machine to Machine (M2M) scenario.
  • the network side device (102) can communicate with the user equipment or with another network side device, such as communication between the macro base station and the access point.
  • the terminal device referred to in the present application may include various handheld devices having wireless communication functions, in-vehicle devices, wearable devices, computing devices, control devices, or other processing devices connected to the wireless modem, and defined in existing communication protocols.
  • Various types of user equipment User Equipment, UE for short
  • MS mobile station
  • terminal Terminal
  • Terminal Equipment Terminal Equipment
  • Terminal Equipment Terminal Equipment
  • the radio access network device involved in the present application may be a transmission point, a base station (BS), a network controller, or a mobile switching center.
  • the device that directly communicates with the user equipment through the wireless channel is usually a base station.
  • the base station may include various forms of macro base stations, micro base stations, relay stations, access points, or Radio Radio Units (RRUs), etc., of course, wireless communication with the user equipment may also be other wireless communication functions.
  • the network side device is not limited to this application.
  • the name of a device with base station function may be different.
  • eNB evolved NodeB
  • 3G the 3rd Generation
  • the base station In the next generation communication system, such as 5G system, the base station is also called gNB.
  • the technical solution provided by the present application may be applied to uplink data transmission and/or downlink data transmission.
  • the data sending device may be a user equipment, and the data receiving device may be a network side device, such as a base station;
  • the data transmitting device may be a network side device, such as a base station, and the data receiving device may be a user device.
  • data generally refers to service data, but may also include signaling, messages, and the like that the system needs to transmit, for example, reference signals, uplink and downlink control messages, etc., and the specific meaning may be adopted by the term.
  • the scene and context are determined.
  • the quasi-co-location (QCL) concept referred to in the present application generally considers that when the channel large-scale characteristic parameter of the second antenna port can be derived from the channel large-scale characteristic parameter of the first antenna port, Called these two antenna ports quasi co-location.
  • the channel large-scale characteristic parameter between the two antenna ports is the same, and the channel large-scale characteristic parameter includes one of delay spread, Doppler spread, Doppler shift, average gain, and average delay.
  • the terminal device can use the information of the known reference signal to compensate the reference signal to be processed, thereby improving the performance of equivalent channel measurement, data demodulation, etc., for example, the terminal device obtains quasi-co-location configuration information.
  • the large-scale information indicated by the quasi co-location includes: "delay spread, Doppler spread, Doppler shift, average gain, and average delay”. That is, delay spread, Doppler spread, Doppler shift, average channel gain, and average delay.
  • the UE assumes the QCL relationship of the large-scale characteristics corresponding to the antenna port according to the QCL behavior and the indication information configured by the network side device.
  • Two types of QCL configurations are defined for the transmission mode (Transmission Mode, TM: 10): Type A (Type-A) and Type B (Type-B), whether Type-A or Type-B is applied, High-level signaling qcl-Operation to configure.
  • Type-A all Cell-specific Reference Signals (CRSs), DMRSs, and CSI-RS antenna ports are considered to satisfy the QCL relationship.
  • Type-B the network-side base station first passes RRC signaling.
  • qcl-CSI-RS-ConfigNZPId-r11 configured with an indication of up to four NZP CSI-RS IDs, and then the base station uses physical layer signaling to control the information format 2D (Downlink Control Information Format 2D, referred to as DCIformat2D)
  • DCIformat2D Downlink Control Information Format
  • the PDSCH RE Mapping and Quasi-Co-Location Indicator (PQI) indicated by the two bits indicates which set of QCL parameters the terminal should use, as shown in Table 1:
  • the values of the PDSCH RE mapping and the quasi-co-location indication may be four, which are used to indicate which set of configuration parameters are specifically applied by the terminal, as defined in Table 1, when PDSCH RE mapping and quasi-co-location
  • the value of the two bits is '00', it is used to indicate that the terminal applies the first group of configuration parameters; when the two bits of the PDSCH RE mapping and the quasi-co-location indication are '01', it is used to indicate that the terminal applies the second Group configuration parameter; when the two bits of the PDSCH RE mapping and the quasi-co-location indication are '10', it is used to indicate that the terminal applies the third group configuration parameter; when the PDSCH RE mapping and the quasi-co-location indication are two values '11' is used to instruct the terminal to apply the fourth set of configuration parameters.
  • Each group of parameters involved in QCL includes:
  • crs-PortsCount-r11. refers to the port number of the CRS
  • qcl-CSI-RS-ConfigNZPId-r11 refers to the NZP CSI-RS resource number indicated by the QCL, that is, the non-zero power CSI-
  • the RS resouce number can be used to inform the UE which non-zero power CSI-RS is currently co-located with the DMRS.
  • the LTE downlink transmission mode technology has the following disadvantages: 1.
  • the scheme considers that all DMRS ports in the same TRP are QCL, but in the 5G NR, the same TRP may have different antenna panels and belong within the same TPR.
  • the DMRS ports of different antenna panels may be non-QCL. In this way, when the cooperation between the different panels is performed, the QCL configuration of the Type-A and Type-B does not solve the problem, which may result in performance loss and cannot support a more flexible transmission mode. 2.
  • the method currently indicated by the PQI is insufficient. Flexible, if you want to support more TRP cooperation in 5G NR, it will lead to more complex PQI indication and increase signaling overhead. The current solution is not easy to extend to NR.
  • FIG. 2 shows a schematic flowchart of a wireless communication data transmission method 200 according to an embodiment of the present application, which is described from the perspective of device interaction.
  • the method 200 can be used in a communication system for communicating over a wireless air interface, which can include a wireless access network device and a terminal device.
  • the communication system can be a similar wireless communication system 100 as shown in FIG.
  • the method 200 is described in detail by taking the interaction between the radio access network device and the terminal device as an example.
  • the method includes the following steps:
  • Step 201 The radio access network device sends the first signaling to the terminal device, where the first signaling includes a first quasi co-location type, and the first quasi co-location type is associated with at least one set of configuration parameters, the first signaling Also including the first quasi co-location type Associated with the at least one set of configuration parameters; the first quasi-co-location type is one of at least two quasi-co-location types preset, and each of the preset quasi-co-location types is quasi-co-shared Each of the address types is associated with at least one channel large-scale characteristic parameter; the first quasi-co-location type is associated with the first-type channel large-scale characteristic parameter, and the first-type channel large-scale characteristic parameter includes at least one channel large-scale characteristic parameter; The radio access network device passes the first signaling, so that the first group of configuration parameters of the at least one set of configuration parameters associated with the first quasi co-location type are applied by the terminal device, thereby facilitating the At least two antenna ports of the quasi co-location are known by the terminal device in the case of at least
  • the channel large-scale characteristic parameter may be classified according to a preset rule, and different types of channel large-scale characteristic parameters respectively correspond to different quasi-co-location types, and different quasi-co-location types
  • the associated channel large-scale characteristic parameters may or may not overlap.
  • the QCL type formation and configuration method 300 defines 1, 2, 3, ..., K QCL types (K can be a positive integer greater than or equal to 1), each QCL Types are associated with at least one parameter, such as QCL type 1, associated with at least ⁇ parameter 1>, ⁇ parameter 2>, ⁇ parameter 3>, ⁇ parameter 4>, ... and other parameters, and for QCL type 1 also configured multiple sets of configuration parameters, such as configuration 1, configuration 2, ... and so on. And so on.
  • each QCL type configuration signaling includes at least the following information: information indicating an antenna port, and whether to assume information of the QCL.
  • the configuration expresses whether the antenna port corresponds to a large-scale characteristic of the QCL group in which the configuration is located is QCL.
  • the large-scale characteristic parameters of the QCL are grouped according to the function of the reference signal, and the parameters between the groups overlap, as shown in Table 2 below:
  • the channel large-scale characteristic parameters of the QCL are divided into five QCL groups with parameter overlap, which are called QCL types 1-5.
  • the grouping of large-scale characteristic parameters of the channel can be further subdivided or expanded into more QCL types according to the function and characteristics of the port, or group combination is performed, resulting in lower complexity.
  • the QCL type indication is included in the QCL types 1-5.
  • a reference signal port (Bam management RS, referred to as BRS) for beam management can be configured.
  • BRS can be a standalone RS or reuse other RSs.
  • One type or multiple configuration information may be configured in Type 1, for example, "Configuration 1" includes multiple BRS ports, indicating that the large-scale characteristic indicating the beam arrival angle or other characterizing beam space information of these BRS ports is QCL.
  • the BRS port included in this configuration may be a BRS port used in whole or in part.
  • the reference signal for beam management multiplexes other RSs, and other RSs that are multiplexed may be a CSI-RS, a synchronization signal (SS), and a synchronization signal of a specific configuration. Any one or any of the units.
  • the configuration information includes information about at least one signal, and the signal may be any one or any of the following: a cell reference signal, a non-zero power CSI-RS, a zero-power CSI-RS, and a synchronization signal SS (Synchronization) Signal), DMRS in PDSCH, DMRS in PBCH (physical broadcasting channel), zero-power DMRS, channel reference signal SRS, random access channel PRACH, DMRS in PUSCH, DMRS in PUCCH And a tracking reference signal (tracking RS) for time, and/or frequency domain synchronization tracking.
  • a cell reference signal a non-zero power CSI-RS, a zero-power CSI-RS, and a synchronization signal SS (Synchronization) Signal
  • DMRS in PDSCH DMRS in PBCH (physical broadcasting channel)
  • PBCH physical broadcasting channel
  • zero-power DMRS channel reference signal SRS
  • random access channel PRACH random access channel PRACH
  • one or more configuration information configurable in Type 1 may be a QCL relationship between a set of antenna ports regarding spatial information parameters.
  • the base station carries the following information in the RRC message to the terminal:
  • the identifier of the CSI-RS signal such as the resource ID of the CSI-RS
  • the RRC message carries the cell QCL information, in which the base station indicates a plurality of signals to the UE, such as the CSI-RS, SS, DMRS, and SRS, for indicating the indication indicated by the UE.
  • the antenna ports corresponding to these signals satisfy the QCL relationship of the large-scale parameter space information of type 1 both.
  • the base station performs the following level configuration in the RRC message:
  • the base station configures the QCL relationship between multiple signal pairs.
  • the CSI-RS and the synchronization signal SS are one signal pair
  • the CSI-RS and the DMRS are another signal pair.
  • the QCL relationship between the pair of signals can indicate the QCL relationship between the two signals by configuring information of the other signal in one of the signals.
  • the UE can learn the QCL relationship between the SS block and the CSI-RS, the QCL relationship between the CSI-RS and the DMRS, and the like.
  • the base station may configure multiple sets of configurations for the UE in the RRC message, where each group configuration includes a QCL relationship between the multiple signals, and the specific configuration may be implemented by one of the foregoing two methods.
  • the base station activates or triggers one or more sets of configuration information in the MAC cell and or the downlink control information. If the base station uses the above two methods, multiple sets of configuration information are configured in the RRC message, and each group of information includes a QCL relationship between multiple signals:
  • Configuration 2 CSI-RS resource2, SS block time index 2, DMRS port group2
  • Configuration 4 CSI-RS resource4, SS block time index 3, DMRS port group4
  • the CSI-RS resource 1 to 4, the SS block time index 1 to 4, and the DMRS port group 1 to 4 are signal identifiers of the CSI-RS, the SS, and the DMRS, respectively, except for the resource identifier, the time domain identifier, and the antenna port. In addition to the group identification, it may be replaced by other identifiers as described above.
  • the base station indicates one of the configurations in the DCI, such as one of the configurations 1 to 4 indicated in the DCI. Or the base station indicates multiple sets of configurations in the DCI, such as two of the configurations 1 to 4 indicated in the DCI. For example, if the base station indicates that configuration 1 and configuration 2 are effective, the UE obtains a QCL relationship between the DMRS antenna port in the DMRS port group 1 and the CSI-RS antenna port of the CSI-RS resource 1 and the SS signal in the SS block time index 1 , and the DMRS The DMRS antenna port in port group2 has a QCL relationship with the CSI-RS antenna port of CSI-RS resource 2 and the SS signal in SS block time index 2.
  • the base station obtains a QCL relationship between the plurality of sets of signals regarding the spatial information by using at least one of an RRC message, a MAC cell, and downlink control information.
  • Type 2 For QCL Type 2, one or more Type 2 configurations can be configured. For example: set 2 configurations for type 2, among them, Configuration 1 is that all antenna ports used for phase noise estimation are QCL; configuration 2 is non-QCL for all antenna ports used for phase noise.
  • the base station When the base station indicates that the UE uses configuration 1 in type 2, the UE needs to assume that all phase noise estimation information on the antenna port for phase noise estimation is consistent, and the phase noise information estimated by the UE on one antenna port may be Push to other antenna ports, that is, use one antenna port for phase noise estimation.
  • the base station indicates that the UE uses configuration 2 in type 2, the UE cannot assume that the antenna port used for phase noise estimation is QCL, so the phase noise result estimated by the UE in one antenna port is not available to other antenna ports.
  • the base station configures the configuration 2 corresponding to the QCL type 2, and the UE performs phase noise estimation on each antenna port.
  • one or more corresponding configuration information is configured in QCL types 3 to 5.
  • Each configuration corresponds to an RS type and a port number indicating the large-scale characteristic to the UE, and the UE is informed of the QCL relationship of the large-scale information in the QCL type corresponding to the ports.
  • Step 202 After the radio access network device sends the first signaling to the terminal device, the radio access network device further sends a second signaling to the terminal device, as shown in FIG.
  • the second signaling includes a second quasi co-location type, the second quasi co-location type is associated with at least one set of configuration parameters, and the second signaling further includes the second quasi co-location type associated with the At least one set of configuration parameters;
  • the second quasi co-location type is one of the preset at least two quasi co-location types;
  • the second quasi co-location type is associated with a second type channel large scale characteristic parameter,
  • the second type channel large-scale characteristic parameter includes at least one channel large-scale characteristic parameter;
  • the radio access network device uses the first signaling and the second signaling to facilitate the first group of configuration parameters And the second set of configuration parameters of the at least one set of configuration parameters associated with the second quasi co-location type are all applied by the terminal device, so that the first type of channel large-scale characteristic parameter is Co-located at least two antenna ports to And at least
  • the design divides the large-scale characteristic parameters of the channel into different categories according to functions, corresponding to different quasi-co-location types, and configures multiple sets of configuration parameters for each quasi-co-location type, and configures at least two quasi-co-location types.
  • the configuration parameter informs the terminal device by signaling, so that the terminal device can learn at least two quasi-co-located antenna ports corresponding to large-scale characteristic parameters of different types of channels, thereby making the configuration of the quasi-co-location in the communication system more suitable for the 5G new wireless technology. Cooperative transmission in the middle, with greater flexibility.
  • the signaling overhead is large for the system, and the physical layer bearer may cause the system to be burdened too much, and the system
  • the configuration information may not need to be valid in real time, so at least one of the first signaling and the second signaling may be implemented by using high layer signaling.
  • the access network device after the radio access network device sends the first signaling to the terminal device, the access network device sends the first indication information to the terminal device,
  • the first indication information is used to instruct the terminal device to apply the first group configuration parameter from the first quasi co-location type associated with at least one set of configuration parameters.
  • the network side indicates that the terminal device can select and apply a set of suitable configuration parameters from the plurality of sets of configuration parameters associated with the first quasi co-location type.
  • the cell when corresponding to Table 3, can be interpreted as a large-scale parameter group containing spatial parameters, which is referred to herein as Group 1 in Table 2.
  • Group 1 when the cell is configured to be 0, it indicates that there is no large-scale parameter configuration between the antenna ports regarding the spatial information parameters, otherwise, it indicates that there is a large-scale parameter configuration between the antenna ports regarding the spatial information parameters.
  • the base station performs the following level configuration in the RRC message:
  • the CSI-RS resource 1 to 4, the SS block time index 1 to 4, and the DMRS port group 1 to 4 are signal identifiers of the CSI-RS, the SS, and the DMRS, respectively, except for the resource identifier, the time domain identifier, and the antenna port. In addition to the group identification, it may be replaced by other identifiers as described above.
  • the base station indicates one of the configurations in the DCI, such as one of the configurations 1 to 4 indicated in the DCI. Or the base station indicates multiple sets of configurations in the DCI, such as two of the configurations 1 to 4 indicated in the DCI. For example, if the base station indicates that configuration 1 and configuration 2 are effective, the UE obtains a QCL relationship between the DMRS antenna port in the DMRS port group 1 and the CSI-RS antenna port of the CSI-RS resource 1 and the SS signal in the SS block time index 1 , and the DMRS The DMRS antenna port in port group2 has a QCL relationship with the CSI-RS antenna port of CSI-RS resource 2 and the SS signal in SS block time index 2.
  • a possible design optionally, a method involving non-overlapping large-scale characteristic parameters between quasi-co-location types as shown in Table 4, splitting the parameters in the QCL into more fine-grained categories.
  • QCL type Channel large scale characteristic parameter 1 Beam arrival angle or other parameters characterizing beam space information 2 Average channel gain 3 Doppler shift 4 Doppler expansion 5 Average delay 6 Delay spread
  • a possible design optionally, a design method for large-scale characteristic parameters between quasi-co-location types as shown in Table 5, the method of splitting and combining the classification methods in Tables 2, 3, and 4 .
  • one or more QCL configuration information may be configured under each QCL type, and each configuration information includes at least information indicating an antenna port, and the base station indicates to each group of QCL type current UEs.
  • the signal may be indicated by an antenna port number of the indication signal, an antenna port number, a pilot pattern, a pilot sequence, a time domain resource location, a frequency domain resource location, a resource identifier, a precoding identifier, and the like.
  • the time domain resource location may be a frame, a subframe, a time slot, a mini slot, an OFDM symbol, or the like.
  • the base station configures a group or a high-level RRC message. QCL configuration for multiple sets of signals.
  • one or more configuration information configurable in Type 1 may be a QCL relationship between a set of antenna ports regarding spatial information parameters.
  • the base station may perform the configuration by using any one of an RRC message, a MAC layer cell, and downlink control information, and send the configuration information to the terminal device.
  • the method for configuring by using an RRC message may adopt any one of the following methods:
  • the base station carries the following information in the RRC message to the terminal:
  • the identifier of the CSI-RS signal such as the resource ID of the CSI-RS
  • Signal identifier of the DMRS such as the identifier of the antenna port (group) of the DMRS
  • the RRC message carries the cell QCL information, in which the base station indicates a plurality of signals to the UE, such as the CSI-RS, SS, DMRS, and SRS, for indicating the indication indicated by the UE.
  • the antenna ports corresponding to these signals satisfy the QCL relationship of the large-scale parameter space information of type 1 both.
  • Configuration 2 CSI-RS resource2, SS block time index 2, DMRS port group2
  • Configuration 4 CSI-RS resource4, SS block time index 3, DMRS port group4
  • the base station obtains a QCL relationship between the plurality of sets of signals regarding the spatial information by using at least one of an RRC message, a MAC cell, and downlink control information.
  • the base station can configure one or more sets of signal QCL relationships for the UE.
  • the signals include DMRS, TRS (tracking RS), synchronization signals, and the like.
  • TRS is a reference signal for the UE to perform time and frequency synchronization, and the TRS may be a separate TRS, or a specific configured CSI-RS.
  • the base station can configure the following information in the RRC message.
  • the base station configures the QCL relationship of the spatial information about one or more sets of signals to the UE, and/or one or more sets of signals about Doppler shift, Doppler spread, and average delay.
  • the QCL relationship of delay extension Specifically, the base station configures one or more sets of configuration information about the spatial information QCL for the UE, and configures one for the UE about Doppler frequency shift, Doppler spread, average delay, and delay spread QCL. Group or groups of configuration information.
  • the base station may indicate in the same signaling domain that the UE uses one or more configurations of one or more sets of configuration information about the QCL relationship of the spatial information, and/or the UE uses about Doppler One or more of one or more sets of configuration information for frequency shift, Doppler spread, average delay, and delay extended QCL relationships. That is, the indication information is sent by using a signaling domain in the downlink control information, one or more sets of one quasi co-location type that one signaling domain can indicate, or one signaling domain can indicate multiple quasi co-location types. One or more sets of configurations, or multiple signaling domains, are used to indicate one or more sets of configurations of a plurality of quasi co-location types.
  • Table 6 may employ a configuration in which QCL for Type 1 regarding QCL relationships in spatial information, Type 3 for Doppler shift, Doppler spread, average delay, and delay spread.
  • the QCL relationship in the relationship, type 4, for spatial information, Doppler shift, Doppler spread, average delay, and delay spread, the base station configures the QCL configuration of one or more sets of signals in the high layer RRC message.
  • the configuration information includes information about at least one signal, and the signal may be any one or any of the following: a cell reference signal, a non-zero power CSI-RS, a zero-power CSI-RS, and a synchronization signal SS (Synchronization) Signal), DMRS in PDSCH, DMRS in PBCH (physical broadcasting channel), zero-power DMRS, channel reference signal SRS, random access channel PRACH, DMRS in PUSCH, DMRS in PUCCH And a tracking reference signal (tracking RS) for time, and/or frequency domain synchronization tracking.
  • a cell reference signal a non-zero power CSI-RS, a zero-power CSI-RS, and a synchronization signal SS (Synchronization) Signal
  • DMRS in PDSCH DMRS in PBCH (physical broadcasting channel)
  • PBCH physical broadcasting channel
  • zero-power DMRS channel reference signal SRS
  • random access channel PRACH random access channel PRACH
  • the base station can configure one or more sets of configuration information for the UE in the RRC message.
  • the set of configuration information may include a configuration of one or more of the foregoing signals; or a configuration including one or more of the foregoing signals and at least one large-scale parameter of type 4.
  • the base station configures indications of more than two signals in the same signaling domain; or, the base station configures two pairs of indications of multiple pairs of signal pairs.
  • the base station configures one or more sets of configurations of Type 1, Type 3, and Type 4 in the RRC message, and the base station may further indicate one or more of the MAC cells, and/or the downlink control information. Group configuration. Specifically, the base station may respectively indicate that the UE uses one or more configurations of one or more sets of configuration information regarding a QCL relationship of spatial information, and/or the UE uses about Doppler shift, Doppler spread, One or more of one or more sets of configuration information for an average delay, delay extended QCL relationship, and/or UE usage with respect to spatial information, Doppler shift, Doppler spread, average delay One or more of one or more sets of configuration information for a QCL relationship that is extended by time delay.
  • the base station may indicate in the same signaling domain that the UE uses one or more configurations of one or more sets of configuration information about the QCL relationship of the spatial information, and/or the UE uses about Doppler One or more of one or more sets of configuration information for frequency shift, Doppler spread, average delay, delay extended QCL relationship, and/or UE One or more of one or more sets of configuration information for spatial information, Doppler shift, Doppler spread, average delay, delay spread QCL relationship. That is, the indication information is sent by using a signaling domain in the downlink control information, one or more sets of one quasi co-location type that one signaling domain can indicate, or one signaling domain can indicate multiple quasi co-location types. One or more sets of configurations, or multiple signaling domains, are used to indicate one or more sets of configurations of a plurality of quasi co-location types.
  • the definition of QCL in this embodiment may refer to the definition in LTE, that is, the signal sent from the antenna port of the QCL will undergo the same large-scale fading, and the large-scale fading includes one or more of the following: delay extension, Doppler Le expansion, Doppler shift, average channel gain, and average delay.
  • the definition of QCL in the embodiment of the present application can also refer to the definition of QCL in 5G.
  • the definition of QCL is similar to that of the LTE system, but the spatial information is added, such as the signal sent from the antenna port of the QCL.
  • the specific content included in the "channel large-scale characteristic parameter" recited in the present application is merely illustrative and should not be construed as limiting the invention.
  • the present invention does not exclude "large-scale characteristics" in future standards.
  • the content of the included content may be modified or expanded. For example, as the system evolves in the future, the large-scale characteristic parameters of the channel representing the spatial information may also add new characteristic parameters on a current basis as needed.
  • the function of the indication information is that the terminal device applies at least one set of configuration parameters from at least one set of configuration parameters associated with the quasi co-location type, so when there is only one set of configuration parameters in the quasi co-location type, the indication may be omitted.
  • the information is used to instruct the terminal to apply a certain set of parameters in the quasi-address type, and the terminal uses a set of configuration parameters in the quasi-co-location type by default.
  • the present invention does not limit the number of groups of configuration parameters indicated by the indication information, and does not limit the number of quasi-co-location types corresponding to the configuration parameters indicated by the indication information.
  • the size of the sequence numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be taken to the embodiments of the present invention.
  • the implementation process constitutes any limitation.
  • FIG. 6 is a schematic block diagram of a terminal device 600 according to an embodiment of the present invention. As shown in FIG. 5, the terminal device 600 includes a receiving unit 610 and a processing unit 620.
  • the terminal device 600 may correspond to various possible designed terminal devices involved in the method 200 for wireless communication data transmission according to embodiments of the present application, the terminal device 500 having a method that can be used to perform the method of FIG. Corresponding units of various designs performed by the terminal devices involved in 200.
  • each unit in the terminal device 600 and the other operations and/or functions described above are respectively configured to implement the corresponding processes and various feasible designs involved in the method 200 of FIG. 2, and are not described herein again for brevity.
  • FIG. 7 is a schematic block diagram of a radio access network device 700 in accordance with another embodiment of the present invention.
  • the network device 700 includes a transceiver 710, a processor 720, a memory 730, and a bus system 740.
  • the transceiver 740, the processor 720 and the memory 730 are connected by a bus system 740 for storing instructions for executing instructions stored in the memory 730 to control the transceiver 710 to send and receive signals, and
  • the radio access network device 700 is configured to perform the method 200 for data transmission and various designs involved in the embodiments of the present invention.
  • the memory 730 may be configured in the processor 720 or may be independent of the processor 720.
  • Embodiment 1 A method for transmitting wireless communication data, comprising:
  • the radio access network device sends the first signaling to the terminal device, where the first signaling includes a first quasi co-location type, and the first quasi co-location type is associated with at least one set of configuration parameters, the first signaling And the at least one set of configuration parameters associated with the first quasi co-location type; the first quasi co-location type is one of at least two quasi co-location types preset, and the preset Each quasi co-location type of the quasi co-location type is associated with at least one channel large-scale characteristic parameter; the first quasi co-location type is associated with a first-class channel large-scale characteristic parameter, and the first-type channel large-scale characteristic The parameter includes at least one channel large-scale characteristic parameter; the radio access network device passes the first signaling to facilitate a first one of the at least one set of configuration parameters associated with the first quasi-co-location type The parameter is applied by the terminal device, so that at least two antenna ports of the quasi-co-location are known by the terminal device when the at least one channel large-scale characteristic parameter associated with the first quasi-co-location type
  • Embodiment 2 The wireless communication data transmission method according to Embodiment 1, comprising: the radio access network device transmitting second signaling to the terminal device, where the second signaling includes a second quasi co-location a type, the second quasi co-location type is associated with at least one set of configuration parameters, and the second signaling further includes the at least one set of configuration parameters associated with the second quasi co-location type;
  • the second quasi co-location type is one of the preset at least two quasi co-location types
  • the second quasi co-location type is associated with a second type channel large-scale characteristic parameter, and the second type channel large-scale characteristic parameter includes at least one channel large-scale characteristic parameter;
  • the radio access network device uses the first signaling and the second signaling to facilitate the first set of configuration parameters and the at least one set of configuration parameters associated with the second quasi co-location type
  • the second set of configuration parameters are all applied by the terminal device, thereby facilitating at least two antenna ports of quasi-co-location in the case of the large-scale characteristic parameters of the first type channel, and large-scale characteristic parameters of the second type channel In the case, at least two antenna ports of the quasi-co-location are known by the terminal device.
  • the access network device sends the first indication information to the terminal device, where the first indication information is used to indicate that the terminal device applies the first group from the at least one set of configuration parameters associated with the first quasi co-location type Configuration parameters.
  • the wireless communication data transmission method comprising:
  • the access network device sends the second indication information to the terminal device, where the second indication information is used to indicate that the terminal device applies the second group from the at least one set of configuration parameters associated with the second quasi-co-location type Configuration parameters.
  • the first indication information and the second indication information are sent by the radio access network device to the terminal device in physical layer signaling.
  • the first indication information and the second indication information are carried in the high layer signaling by the radio access network device. Send to the terminal device.
  • the first set of configuration parameters is used to carry the first effective time indication information, where the first effective time indication information is used to indicate the effective time of the first set of configuration parameters of the terminal device;
  • the second set of configuration parameters is used to carry the second effective time indication information, where the second effective time indication information is used to indicate the effective time of the second set of configuration parameters of the terminal device.
  • the access network device sends a first effective time indication signaling to the terminal device, where the first effective time indication signaling is used to indicate an effective time of the first set of configuration parameters of the terminal device;
  • the access network device sends a second effective time indication signaling to the terminal device, where the second effective time indication signaling is used to indicate an effective time of the second set of configuration parameters of the terminal device.
  • the first type channel large-scale characteristic parameter is a parameter characterizing the beam space characteristic, and includes any one or any combination of the following: a reception angle of arrival, an angle of arrival extension, a transmission departure angle, a departure angle extension, a spatial correlation of the reception antenna, and , transmit and receive beamforming.
  • Embodiment 10 A radio access network device, comprising: at least one processor, a transceiver, a memory, a bus, the at least one processor, the transceiver and the memory are communicated by the bus, Transceivers for communicating between the radio access network device and other devices, the memory for storing instructions, the at least one processor executing instructions stored in the memory when the radio access network device is operating So that the radio access network device performs the method as described in any of embodiments 1 to 9.
  • Embodiment 11 is a wireless communication data transmission method, including:
  • the terminal device receives the first signaling from the radio access network device, where the first signaling includes a first quasi co-location type, and the first quasi co-location type is associated with at least one set of configuration parameters, the first The command further includes the at least one set of configuration parameters associated with the first quasi co-location type;
  • the first quasi co-location type is one of at least two quasi co-location types preset, and each of the pre-set quasi co-location types is associated with at least one channel large scale Characteristic parameter
  • the first quasi co-location type is associated with a first type channel large-scale characteristic parameter, and the first type channel large-scale characteristic parameter includes at least one channel large-scale characteristic parameter;
  • the terminal device by using the first signaling, to apply the first group configuration parameter of the at least one set of configuration parameters associated with the first quasi co-location type, to learn that at least the first quasi co-location type is associated with At least two antenna ports of quasi-co-located in the case of one channel large-scale characteristic parameter.
  • Embodiment 12 The method for transmitting wireless communication data according to Embodiment 11, comprising:
  • the terminal device receives the second signaling from the radio access network device, where the second signaling includes a second quasi co-location type, and the second quasi co-location type is associated with at least one set of configuration parameters.
  • the second signaling further includes the at least one set of configuration parameters associated with the second quasi co-location type;
  • the second quasi co-location type is one of the preset at least two quasi co-location types
  • the second quasi co-location type is associated with a second type channel large-scale characteristic parameter, and the second type channel large-scale characteristic parameter includes at least one channel large-scale characteristic parameter;
  • the network device 700 can correspond to a method 200 for data transmission and various designs of radio access network devices in accordance with embodiments of the present invention
  • the radio access network device 700 can include The physical unit of the method performed by the method 200 and the various designed radio access network devices involved therein.
  • the details of the process and the design of the method 200 in FIG. 2 are omitted for the sake of brevity, and the other operations and/or functions of the wireless access network device 700 are respectively omitted.
  • Embodiments of the present invention also provide a computer readable storage medium storing one or more programs, the one or more programs including instructions that are portable electronic devices that include a plurality of applications When executed, the portable electronic device can be caused to perform the method of the embodiment shown in FIG.

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Abstract

La présente invention concerne un procédé de transmission de données de radiocommunication. Le procédé comprend les étapes suivantes : un dispositif de réseau d'accès radio transmet une première signalisation à un dispositif terminal, la première signalisation contenant un premier type de quasi-colocalisation et au moins un ensemble de paramètres de configuration associés à celui-ci, le premier type de quasi-colocalisation étant l'un d'au moins deux types de quasi-colocalisation prédéfinis, et chaque type de quasi-colocalisation des types de quasi-colocalisation prédéfinis étant associé à au moins un paramètre caractéristique à grande échelle de canal; le dispositif terminal applique un ensemble de paramètres de configuration dudit ensemble de paramètres de configuration associés au premier type de quasi-colocalisation, ce qui permet d'apprendre au moins deux ports d'antenne quasi-colocalisés selon ledit au moins un paramètre caractéristique à grande échelle de canal associé au premier type de quasi-colocalisation.
PCT/CN2017/109561 2016-11-04 2017-11-06 Procédé et dispositif basés sur un livre de codes, pour un retour d'informations d'état de canal WO2018082696A1 (fr)

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BR112019008817A BR112019008817A2 (pt) 2016-11-04 2017-11-06 método e dispositivo de feedback de informações de estado de canal baseado em livro de códigos
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