WO2019029426A1 - Method and apparatus used for transmitting reference signals - Google Patents
Method and apparatus used for transmitting reference signals Download PDFInfo
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- WO2019029426A1 WO2019029426A1 PCT/CN2018/098289 CN2018098289W WO2019029426A1 WO 2019029426 A1 WO2019029426 A1 WO 2019029426A1 CN 2018098289 W CN2018098289 W CN 2018098289W WO 2019029426 A1 WO2019029426 A1 WO 2019029426A1
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- csi
- rss
- indication information
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
- H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2647—Arrangements specific to the receiver only
- H04L27/2655—Synchronisation arrangements
- H04L27/2656—Frame synchronisation, e.g. packet synchronisation, time division duplex [TDD] switching point detection or subframe synchronisation
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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
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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
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
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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
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
- H04L5/0057—Physical resource allocation for CQI
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
Definitions
- the present disclosure relates to the field of wireless communication technologies, and in particular, to a method and apparatus for transmitting a reference signal.
- the related technology is mainly based on the tracking reference signal sent by the base station after the user equipment synchronizes according to the Primary Synchronization Signal (PSS) and the Secondary Synchronization Signal (SSS) sent by the base station.
- PSS Primary Synchronization Signal
- SSS Secondary Synchronization Signal
- TRS Tracking Reference Signal
- the terminal performs time-frequency tracking on the data transmitted by the received base station according to a cell-specific reference signal (CRS) sent by the base station, that is, the TRS in the LTE system is a CRS.
- CRS cell-specific reference signal
- the base station sends the CRS to the terminal, it will continue to transmit all the time, resulting in a large amount of signaling overhead and pilot pollution in the entire communication system.
- the present disclosure provides a method for transmitting a reference signal, including: determining first indication information, the first indication information being used to indicate at least two Channel State Information (CSI) to a first terminal.
- the time-frequency resource of the CSI Reference Signal (CSI-RS), the at least two CSI-RSs are used for time-frequency tracking; and the first indication information is sent to the first terminal.
- CSI-RS CSI Reference Signal
- the present disclosure provides an apparatus for transmitting a reference signal
- the apparatus may implement the method for transmitting a reference signal of the first aspect
- the apparatus may be a network device, in one possible design
- the device includes a determining unit and a sending unit, where: a determining unit, configured to determine first indication information, where the first indication information is used to indicate video resources of at least two CSI-RSs, where the at least two CSI-RSs are used for time-frequency
- a sending unit configured to send the first indication information to the first terminal.
- the network device in the present disclosure sends the first indication information to the first terminal, and informs the CSI-RS that is subsequently sent by the first terminal to include the CSI-RS for time-frequency tracking, so that the first terminal receives the After the first indication information, the CSI-RS for time-frequency tracking can be acquired for time-frequency tracking.
- the existing pilot signal By using the existing pilot signal, the existing pilot signaling can be reduced according to the existing signaling, and the pilot signal used for other purposes can be used as the time-frequency tracking, which is reduced. Corresponding pilot overhead.
- the first indication information is used to indicate, to the first terminal, time-frequency resources of at least two CSI-RSs in the first CSI-RS resource set.
- the first indication information is used to indicate to the first terminal, the time-frequency resource of the CSI-RS of the at least one CSI-RS group in the second CSI-RS resource set; wherein each CSI-RS group is used for the time-frequency Tracking, each CSI-RS group includes at least two CSI-RSs.
- the foregoing first CSI-RS resource set includes, but is not limited to, a set of resource configuration information of a CSI-RS
- the foregoing second CSI-RS resource set includes, but not limited to, a CSI-RS of a CSI-RS group.
- Resource configuration information Exemplarily, the foregoing first CSI-RS resource set and the second CSI-RS resource set may be a set of CSI-RS resources agreed by the network side and the terminal side in advance by a pre-agreed manner (for example, an existing protocol).
- the CSI-RS resource set of the CSI-RS for acquiring channel state information configured for the terminal in advance for the network device may also be used.
- the foregoing first indication information is used to indicate, to the first terminal, an identifier of at least two CSI-RSs in the first CSI-RS resource set, where the identifier of the CSI-RS is used to indicate a time frequency of the CSI-RS.
- the first indication information is used to indicate to the first terminal the group number of the at least one CSI-RS group in the second CSI-RS resource set, where the group number of the CSI-RS group is used to indicate the CSI of the CSI-RS group. -RS time-frequency resources.
- the resource configuration information of the foregoing CSI-RS includes at least one of the following information: a period of a CSI-RS, a subframe offset value of a CSI-RS, and a resource block (RB) occupied by a CSI-RS.
- a period of a CSI-RS a subframe offset value of a CSI-RS
- a resource block (RB) occupied by a CSI-RS Location, the number of resource unit REs occupied by the CSI-RS in the RB, the number of antenna ports of the CSI-RS, the sequence initialization parameters of the CSI-RS, and the pattern information of the RE occupied by the CSI-RS to carry the CSI-SR Carrier type.
- the first indication information in the disclosure includes: pattern information of the at least two CSI-RSs (Resource Element, RE) .
- the technical solution provided by the first aspect further includes: sending an indication information directly to the first terminal, to indicate at least two pre-configured CSIs. -RS and instruct it to be used for time-frequency tracking.
- the first indication information in the technical solution includes: resource configuration information of a CSI-RS corresponding to the at least two CSI-RSs, where the resource configuration information of the CSI-RS is used to indicate at least two pre-configured CSIs. -RS and instruct it to be used for time-frequency tracking.
- the technical solution provided by the first aspect further includes: the network device may further select at least two CSI-RSs before determining the first indication information. , thereby reducing the overhead of notification signaling.
- the device further comprises a selection unit. Wherein: the selection unit is used to select at least two CSI-RSs.
- the technical solution provided by the first aspect further includes: using the CSI-RS for time-frequency tracking for other purposes, to reduce the correspondence. Pilot overhead.
- the technical solution further includes at least one of the following: the solution A: sending the second indication information to the second terminal; the solution B: sending the third indication information to the third terminal; and the scenario C: sending the fourth terminal to the fourth terminal Four instructions.
- the sending unit is further configured to implement at least one of the following steps: Step A: sending second indication information to the terminal; Step B: transmitting third indication information to the terminal; Step C : Send the fourth indication information to the terminal.
- the second indication information is used to indicate that the second terminal performs rate matching according to the at least two CSI-RSs.
- the third indication information is used to indicate that the third terminal is configured according to any one of the at least two CSI-RSs.
- the RS performs beam management; the foregoing fourth indication information is used to instruct the fourth terminal to acquire channel state information according to any CSI-RS of the at least two CSI-RSs.
- the present disclosure provides a method for transmitting a reference signal, including: receiving first indication information, where the first indication information is used to indicate, to a first terminal, time-frequency resources of at least two CSI-RSs, where At least two CSI-RSs are used for time-frequency tracking; at least two CSI-RSs are determined according to the first indication information.
- the present disclosure is an apparatus for transmitting a reference signal
- the apparatus may implement the method for transmitting a reference signal of the second aspect
- the apparatus may be a terminal
- the apparatus includes a receiving unit and a determining unit, wherein: the receiving unit is configured to receive first indication information, where the first indication information is used to indicate time-frequency resources of at least two CSI-RSs to the first terminal, and the determining unit is configured to use, according to the first The indication information determines at least two CSI-RSs.
- the technical solution provided by the second aspect further includes: determining a first CSI-RS resource set, where the foregoing first indication information is used to Determining, by the first terminal, a time-frequency resource of at least two CSI-RSs in the first CSI-RS resource set; or determining a second CSI-RS resource set, where the foregoing first indication information is used to indicate to the first terminal a time-frequency resource of a CSI-RS of at least one CSI-RS group in the second CSI-RS resource set; wherein each CSI-RS group is used for time-frequency tracking, and each CSI-RS group includes at least two CSIs -RS.
- the determining unit is further configured to determine a first CSI-RS resource set or a second CSI-RS resource set.
- the foregoing first CSI-RS resource set and the second CSI-RS resource set are CSI-RS sets that are agreed in advance by the network side and the terminal side in a pre-agreed manner (for example, an existing protocol).
- the technical solution provided by the second aspect further includes: performing time-frequency on the data sent by the received network device according to the at least two CSI-RSs track.
- the apparatus further includes: a time-frequency tracking unit, configured to perform time-frequency tracking on the data sent by the received network device according to the at least two CSI-RSs.
- the technical solution provided by the second aspect further includes: using the CSI-RS for time-frequency tracking for other purposes, for example, rate matching To reduce the corresponding pilot overhead.
- the technical solution further includes: receiving second indication information, where the second indication information is used to indicate that the terminal performs rate matching according to the at least two CSI-RSs, and performs rate matching according to the second indication information and the at least two CSI-RSs. .
- the receiving unit is further configured to receive second indication information, where the second indication information is used to indicate that the terminal performs rate matching according to the at least two CSI-RSs; the terminal further includes: a rate And a matching unit, configured to perform rate matching according to the second indication information and the at least two CSI-RSs.
- the technical solution provided by the second aspect further includes: using the CSI-RS for time-frequency tracking for other purposes, for example, beam management.
- the technical solution further includes: receiving third indication information, where the third indication information is used to indicate that the terminal performs beam management according to any one of the at least two CSI-RSs, according to the third indication information, and Beam management is performed on any of the at least two CSI-RSs.
- the receiving unit is further configured to receive third indication information, where the third indication information is used to indicate that the terminal performs beam management according to any one of the at least two CSI-RSs.
- the apparatus further includes: a beam management unit, configured to perform beam management according to the third indication information and any one of the at least two CSI-RSs.
- the technical solution provided by the second aspect further includes: using the CSI-RS for time-frequency tracking for other purposes, for example, a channel state. Information acquisition to reduce the corresponding pilot overhead.
- the technical solution further includes: receiving fourth indication information, the fourth indication information is used to instruct the terminal to acquire channel state information according to any CSI-RS in the at least two CSI-RSs, according to the fourth indication information and the at least two CSIs - Any CSI-RS in the RS acquires channel state information.
- the receiving unit is further configured to receive fourth indication information, where the fourth indication information is used to indicate that the terminal acquires a channel state according to any one of the at least two CSI-RSs.
- the device further includes: a channel detecting unit, configured to acquire channel state information according to the fourth indication information and any CSI-RS of the at least two CSI-RSs.
- a method for transmitting a reference signal includes: determining a time-frequency resource of at least two CSI-RSs in a preset third CSI-RS resource set, or determining a pre-configured fourth CSI a time-frequency resource of a CSI-RS in at least one CSI-RS group in the RS resource set, wherein each CSI-RS group includes at least two CSI-RSs; using time-frequency resources of the at least two CSI-RSs The first terminal transmits a CSI-RS, wherein the CSI-RS is used for time-frequency tracking.
- the present disclosure provides an apparatus for transmitting a reference signal
- the apparatus may implement the method for transmitting a reference signal of the first aspect
- the apparatus may be a network device, in one possible design
- the apparatus includes a determining unit and a sending unit, where: the determining unit is configured to determine a time-frequency resource of at least two CSI-RSs in the preset third CSI-RS resource set, or to determine a pre-configured fourth CSI a time-frequency resource of a CSI-RS in at least one CSI-RS group in the RS resource set; wherein each CSI-RS group includes at least two CSI-RSs; a transmitting unit for using at least two CSI-RSs
- the time-frequency resource sends a CSI-RS to the first terminal; wherein the CSI-RS is used for time-frequency tracking.
- the CSI-RS may be sent to the first terminal according to the time-frequency resource. Since these CSI-RSs are pre-agreed CSI-RSs on the network side and the terminal side, the network side does not need to send indication information to the terminal side for indication.
- the technical solution provided by the third aspect further includes: determining the time-frequency resource of the at least two CSI-RSs in the preset third CSI-RS resource set.
- the method includes: determining, according to the network parameter information, a time-frequency resource of at least two CSI-RSs in the third CSI-RS resource set; or determining the at least one CSI-RS in the pre-configured fourth CSI-RS resource set.
- the time-frequency resource of the CSI-RS in the group includes: determining, according to the network parameter information, a time-frequency resource of at least two CSI-RSs in the third CSI-RS resource set.
- the determining unit when determining the time-frequency resources of the at least two CSI-RSs in the preset third CSI-RS resource set, is specifically configured to: determine, according to the network parameter information, the advance a time-frequency resource of at least two CSI-RSs in the configured third CSI-RS resource set; or the determining unit determines CSI-RS in at least one of the pre-configured fourth CSI-RS resource sets
- the time-frequency resource is specifically configured to: determine time-frequency resources of the CSI-RS in the at least one CSI-RS group in the pre-configured fourth CSI-RS resource set according to the network matching information.
- the network parameter information includes at least one of the following information: a cell ID of a cell managed by the network device, and a mapping relationship between the cell and a time-frequency resource of the CSI-RS, where the cell of the cell managed by the network device is located The mapping between the area ID and the time-frequency resource of the area and the CSI-RS, and the number of CSI-RS resources in the CSI-RS set configured by the CSI-RS resource set.
- the technical solution provided by the third aspect further includes: using the CSI-RS for time-frequency tracking for other purposes, for example, rate matching , beam management, channel state information acquisition to reduce the corresponding pilot overhead.
- the CSI-RS for time-frequency tracking for other purposes, for example, rate matching , beam management, channel state information acquisition to reduce the corresponding pilot overhead.
- the disclosure provides a method for transmitting a reference signal, including: determining a time-frequency resource of at least two CSI-RSs in a preset third CSI-RS resource set, or determining a pre-configured Time-frequency resources of CSI-RSs in at least one CSI-RS group in the fourth CSI-RS resource set, wherein each CSI-RS group includes at least two CSI-RSs; time-frequency using at least two CSI-RSs The resource receives a CSI-RS, wherein the CSI-RS is used for time-frequency tracking.
- the apparatus may implement the method for transmitting a reference signal of the first aspect, for example, the apparatus may be a terminal, and in one possible design, the terminal a determining unit and a receiving unit, where: a determining unit, configured to determine a unit, configured to determine a time-frequency resource of at least two CSI-RSs in a preset third CSI-RS resource set, or determine a pre-configured first a time-frequency resource of a CSI-RS in at least one CSI-RS group of the four CSI-RS resource sets, wherein each CSI-RS group includes at least two CSI-RSs; and a receiving unit that uses at least two CSI- The time-frequency resource of the RS receives the CSI-RS, wherein the CSI-RS is used for time-frequency tracking.
- a determining unit configured to determine a unit, configured to determine a time-frequency resource of at least two CSI-RSs in a preset third CSI-RS resource set, or determine a pre-configured first a
- the technical solution provided by the fourth aspect further includes: determining the time-frequency resource of the at least two CSI-RSs in the preset third CSI-RS resource set.
- the method includes: determining time-frequency resources of at least two CSI-RSs in the third CSI-RS resource set according to the network parameter information; determining the at least one CSI-RS group in the pre-configured fourth CSI-RS resource set
- the time-frequency resource of the CSI-RS includes: determining, according to the network parameter information, a time-frequency resource of at least two CSI-RSs in the third CSI-RS resource set.
- the determining unit when determining the time-frequency resources of the at least two CSI-RSs in the preset third CSI-RS resource set, is specifically configured to: determine, according to the network parameter information, Time-frequency resources of at least two CSI-RSs in the three CSI-RS resource sets; or, when the determining unit determines the CSI-RSs in at least one of the pre-configured fourth CSI-RS resource sets
- the frequency resource is specifically configured to: determine time-frequency resources of at least two CSI-RSs in the third CSI-RS resource set according to the network parameter information.
- the network parameter information includes at least one of the following information: a serving cell ID of the first terminal, and a mapping relationship between the cell and the time-frequency resource of the CSI-RS, and an area ID of the area where the server cell of the first terminal is located. And a mapping relationship between the area and the time-frequency resource of the CSI-RS, and the number of CSI-RS resources in the CSI-RS set configured by the CSI-RS resource set.
- the technical solution provided by the fourth aspect further includes: performing time-frequency on the data sent by the received network device according to the at least two CSI-RSs track.
- the apparatus further includes: a time-frequency tracking unit, configured to perform time-frequency tracking on the data sent by the received network device according to the at least two CSI-RSs.
- the technical solution provided by the fourth aspect further includes: using the CSI-RS for time-frequency tracking for other purposes, for example, rate matching, beam management, and channel Status information is obtained to reduce the corresponding pilot overhead.
- the CSI-RS for time-frequency tracking for other purposes, for example, rate matching, beam management, and channel Status information is obtained to reduce the corresponding pilot overhead.
- first terminal, the second terminal, the third terminal, and the fourth terminal in the disclosure may be the same terminal, or may be different terminals, which is not limited in this disclosure.
- the apparatus can include a processor and a memory.
- the processor is configured to support the apparatus to perform the corresponding functions of the methods of the corresponding aspects described above.
- the memory is for coupling with a processor that holds the programs and data necessary for the device.
- the apparatus can also include a communication interface for supporting communication between the apparatus and other network elements.
- the communication interface can be a transceiver.
- the present disclosure also provides a computer storage medium having stored thereon a computer program that, when executed on a computer, causes the computer to perform the method of any of the above aspects.
- the present disclosure also provides a computer program product, when run on a computer, causing the computer to perform the method of any of the above aspects.
- the present disclosure also provides a communication chip in which instructions are stored that, when run on a network device or terminal, cause the network device or terminal to perform the methods described in the various aspects above.
- any of the devices or computer storage media or computer program products provided above are used to perform the corresponding methods provided above, and therefore, the beneficial effects that can be achieved can be referred to the beneficial effects in the corresponding methods. , will not repeat them here.
- FIG. 1 is a structural diagram of a communication system to which the technical solution provided by the embodiment of the present disclosure is applied;
- FIG. 2 is a schematic flowchart diagram of a method for transmitting a reference signal according to an embodiment of the present disclosure
- FIG. 3 is a pilot diagram provided by an embodiment of the present disclosure.
- FIG. 4 is another pilot diagram provided by an embodiment of the present disclosure.
- FIG. 5 is a schematic flowchart of still another method for transmitting a reference signal according to an embodiment of the present disclosure
- FIG. 6 is a schematic flowchart diagram of another method for transmitting a reference signal according to an embodiment of the present disclosure
- FIG. 7 is a schematic flowchart diagram of still another method for transmitting a reference signal according to an embodiment of the present disclosure.
- FIG. 8 is a schematic flowchart diagram of another method for transmitting a reference signal according to an embodiment of the present disclosure.
- FIG. 9 is a schematic structural diagram of a network device according to an embodiment of the present disclosure.
- FIG. 10 is a schematic structural diagram of a base station according to an embodiment of the present disclosure.
- FIG. 11 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure.
- FIG. 12 is a schematic structural diagram of another terminal according to an embodiment of the present disclosure.
- the words “first”, “second”, etc. are used to distinguish the same or similar items whose functions or functions are substantially the same, in the field.
- the skilled person will understand that the words “first”, “second” and the like do not limit the number and order of execution.
- the technical solutions provided by the present disclosure can be applied to various communication systems, for example, a 5G communication system, a future evolution system, or a plurality of communication fusion systems, and the like.
- M2M machine to machine
- eMBB enhanced mobile broadband
- uRLLC ultra high reliability and ultra low latency communication
- mMTC massive machine type communication
- Embodiments of the present disclosure may be applied to communication with a network device and a terminal in a 5G communication system, or communication between a terminal and a terminal, or communication between a network device and a network device.
- FIG. 1 is a schematic diagram showing a possible structure of a communication system according to an embodiment of the present disclosure.
- the communication system includes at least one network device 100 (only one is shown in FIG. 1) and one or more terminals 200 to which each network device 100 is connected.
- the network device 100 may be a base station, a core network device, a transmission reference point (TRP), a relay station, or an access point.
- TRP transmission reference point
- the network device 100 may be a base transceiver station (BTS) in a global system for mobile communication (GSM) or a code division multiple access (CDMA) network, or may be a broadband
- the NB (NodeB) in the code division multiple access (WCDMA) may also be an eNB or an eNodeB (evolutional NodeB) in LTE.
- the network device 100 may also be a wireless controller in a cloud radio access network (CRAN) scenario.
- the network device 100 may also be a network device in a 5G communication system or a network device in a future evolved network; it may also be a wearable device or an in-vehicle device or the like.
- the terminal 200 can be a wireless terminal or a wired terminal, and the wireless terminal can be a device that provides voice and/or other service data connectivity to the user, a handheld device with wireless communication capabilities, a computing device, or other processing connected to the wireless modem.
- the wireless terminal can communicate with one or more core networks via a Radio Access Network (RAN), which can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal.
- RAN Radio Access Network
- the wireless terminal can also be a mobile device or a user device ( User equipment, UE), UE terminal, access terminal, wireless communication device, terminal unit, terminal station, mobile station, mobile station, remote station (Remote Station), remote station, remote terminal (Remote) Terminal), Subscriber Unit, Subscriber Station, User Generation (User Agent), the terminal device and the like.
- UE User equipment
- UE terminal access terminal
- wireless communication device terminal unit, terminal station, mobile station, mobile station, remote station (Remote Station), remote station, remote terminal (Remote) Terminal), Subscriber Unit, Subscriber Station, User Generation (User Agent), the terminal device and the like.
- the above is merely an example, and the actual application is not limited thereto.
- the user equipment In order to maintain the traffic transmission in the communication system and alleviate the time offset and frequency offset of the signals transmitted in the communication system, the user equipment needs to perform the synchronization operation according to the reference signal sent by the network device.
- the synchronization is further divided into initial coarse synchronization and time-frequency tracking fine synchronization, and the initial coarse synchronization is performed according to a Primary Synchronization Signal (PSS) and a Secondary Synchronization Signal (SSS) sent by the base station, and
- PSS Primary Synchronization Signal
- SSS Secondary Synchronization Signal
- TRS Tracking Reference Signal
- the TRS for time-frequency tracking is CRS.
- the time-frequency tracking can be divided into two parts according to the time domain and the frequency domain: 1) time domain tracking and delay spread estimation: the tracking range depends on the frequency domain density of the TRS, and the tracking accuracy depends on the frequency domain bandwidth of the TRS; Frequency domain tracking and Doppler spread estimation: The tracking range depends on the time domain density of the TRS, and the tracking accuracy depends on the time domain period of the TRS.
- the present disclosure implements time-frequency tracking by constructing a new TRS using existing reference signals (ie, pilot signals).
- existing reference signals ie, pilot signals
- the CSI-RS used in the present disclosure for constructing a new TRS is only one possible way for other existing pilot signals (eg, CRS, reduced cell-specific reference signals).
- CRS reduced cell-specific reference signals
- PSS PSS
- SSS SSS
- PRS PRS
- the construction process of constructing a new TRS using the existing pilot signals in the present disclosure does not perform any processing on the original pilot signals, but only by transmitting at least two pilot signals in the time domain at the time of transmission.
- the aggregation is performed, so that the opposite terminal performs time-frequency tracking according to the received at least two pilot signals.
- the essence is simply to transmit at least two pilot signals as TRS.
- Embodiment 1 is a diagrammatic representation of Embodiment 1:
- FIG. 2 is a schematic flow chart of a method for transmitting a reference signal provided by the present disclosure. The method specifically includes:
- the network device determines first indication information.
- the network device sends the first indication information to the first terminal.
- the peer first terminal receives the first indication information.
- the foregoing network device may be a network device in the communication system shown in FIG. 1, for example, a base station; and the foregoing first terminal may be a terminal device in the communication system shown in FIG. 1.
- the first indication information in the disclosure is used to indicate to the first terminal time-frequency resources of at least two CSI-RSs, and the at least two CSI-RSs are used for time-frequency tracking.
- the first indication information is specifically used to indicate that the first terminal performs time-frequency tracking using the received tracking reference signal (ie, the disclosure indicates that at least two CSI-RSs indicated by the first indication information are TRS) until receiving. Go to the next tracking reference signal.
- the reference signal used for time-frequency tracking carried on the sub-carrier is referred to as a tracking reference signal in the present disclosure, that is, the present disclosure refers to at least two CSI-RSs used for time-frequency tracking as a time-frequency tracking signal.
- the tracking reference signal in the present disclosure is commanded according to the inherent logic function of the reference signal. Therefore, the tracking reference signal in the present disclosure may have other names, and the name cannot be defined as an embodiment of the present disclosure.
- the base station in the LTE system sends the CRS to the UE for time-frequency tracking, it will continue to transmit continuously, resulting in a large amount of signaling overhead and pilot pollution in the entire communication system. If you design a new TRS for time-frequency tracking, you need to design a new pilot model or pattern, and use new signaling to notify, which introduces a large reference signal overhead, further reducing the efficiency of resource utilization. At the same time, the new pilot signal cannot be taken with other pilot signals, it can only be used as time-frequency tracking, and other functions cannot be implemented.
- the network device in the present disclosure sends the first indication information to the terminal to notify the terminal that the CSI-RS sent by the terminal includes the CSI-RS for time-frequency tracking, so that the terminal according to the received first indication information.
- the CSI-RS for time-frequency tracking can be acquired for time-frequency tracking.
- the existing pilot signal By using the existing pilot signal, the corresponding pilot overhead can be reduced according to the existing signaling notification, and the pilot signal used for other purposes can also be used as the time-frequency tracking, which reduces the correspondence. Pilot overhead.
- the following two implementation manners may be determined. specific:
- the first indication information sent by the network device includes: resource configuration information of CSI-RS corresponding to at least two CSI-RSs for time-frequency tracking.
- the resource configuration information of the CSI-RS is used to indicate at least two CSI-RSs and is indicated for time-frequency tracking.
- the base station selects CSI-RS1 and CSI-RS2 to jointly perform time-frequency tracking, and the CSI-RS transmitted by the base station to the terminal does not include CSI-RS1 dedicated to channel state information acquisition.
- the base station selects CSI-RS1 and CSI-RS2 to jointly perform time-frequency tracking, and the CSI-RS transmitted by the base station to the terminal does not include CSI-RS1 dedicated to channel state information acquisition.
- the network side may directly send the first indication information to the terminal to indicate at least two pre-configured CSI-RSs, and indicate them for time-frequency tracking.
- the first indication information is used to indicate to the first terminal, the time-frequency resource of the at least two CSI-RSs in the first CSI-RS resource set; or the first indication information is used to indicate the second terminal to the first terminal.
- Each CSI-RS group is used for time-frequency tracking, and each CSI-RS group includes at least two CSI-RSs.
- the foregoing first CSI-RS resource set and the second CSI-RS resource set are existing existing network device configured for the first terminal for acquiring channel state information (or other uses, such as beam management).
- the CSI-RS resource set of the CSI-RS because the CSI-RS resource set is a CSI-RS resource set of the CSI-RS that the network device is configured for the first terminal. Therefore, the disclosure may directly send the first indication information to the first terminal to indicate the pre-configured at least two CSI-RSs, and indicate that they are used for time-frequency tracking, and the terminal may be in the first indication information after receiving the first indication information.
- the configured CSI-RS resource set searches for the corresponding time-frequency resource to receive the CSI-RS for time-frequency tracking, and does not need to configure a dedicated TRS time-frequency resource for the first terminal, and can directly use the network side as the medium time. Frequency resources, reducing signaling overhead.
- the pilot map of the CSI-RS transmitted by the base station to the terminal shown in FIG. 4 where the pilot map embodies the RE positions of the four CSI-RS1s, that is, the base station sends the channel status information to the terminal.
- the pilot map embodies the RE positions of the four CSI-RS1s, that is, the base station sends the channel status information to the terminal.
- There are 4 CSI-RS1s ie, CSI-RS1, CSI-RS2, CSI-RS3, and CSI-RS4
- CSI-RS1 and CSI-RS2 are CSI-RSs selected by the base station for time-frequency tracking.
- the first indication information includes: pattern information of the occupied REs of the at least two CSI-RSs.
- Manner 3 The network side and the terminal test pre-configure the CSI-RS resource set for the two parties according to the agreed manner, and then send the first indication information to instruct the terminal to find the corresponding CSI-RS from the pre-configured CSI-RS resource set. Time-frequency resources.
- the foregoing first indication information is used to indicate, to the first terminal, time-frequency resources of at least two CSI-RSs in the first CSI-RS resource set; or, the first indication information is used to indicate to the first terminal.
- the foregoing first CSI-RS resource set and the second CSI-RS resource set are: the network side and the terminal measure a CSI-RS resource set pre-configured according to a predetermined manner (eg, an existing protocol), Therefore, the network device may directly send the first indication information to the terminal to indicate which CSI-RSs or CSI-RS groups in the CSI-RS set configured by the pre-configured CSI-RS resource set are used for time-frequency tracking.
- a predetermined manner eg, an existing protocol
- the first indication information includes: pattern information of the occupied REs of the at least two CSI-RSs.
- the first indication information in the foregoing manners 1 and 2 is used to indicate, to the first terminal, an identifier of at least two CSI-RSs in the first CSI-RS resource set, where the identifier of the CSI-RS is used.
- the time-frequency resource indicating the CSI-RS is used to indicate, to the first terminal, a group number of at least one CSI-RS group in the second CSI-RS resource set; wherein the group number of the CSI-RS group is used A time-frequency resource indicating a CSI-RS of the CSI-RS group.
- the first indication information includes: pattern information of the occupied REs of the at least two CSI-RSs.
- the resource configuration information of the CSI-RS included in the first CSI-RS resource set and the second CSI-RS resource set includes at least one of the following: a period of the CSI-RS, and a subframe of the CSI-RS.
- Offset value location of occupied RB of CSI-RS, number of resource unit REs occupied by RRC in CSI-RS, number of antenna ports of CSI-RS, sequence initialization parameters of CSI-RS, CSI-RS occupation
- the pattern information of the RE to carry the carrier type of the CSI-SR.
- the period of the CSI-RS and the subframe offset value may be used to indicate the subframe information occupied by the CSI-RS.
- the subframe information occupied by the CSI-RS may be represented by a bit mapping manner.
- the pattern information of the RE occupied by the CSI-RS includes the pattern index of the RE occupied by the CSI-RS, so that the terminal can determine the RE occupied by the CSI-RS in one RB according to the pattern index and the preset pattern, but The present disclosure is not limited to this.
- the network side and the terminal side may preset the partial resource configuration information of the CSI-RS.
- the CSI-RS may be preset to occupy a few RBs of the system bandwidth, or the period or the occupied CSI-RS may be preset. The number of RBs, and so on.
- the network side and the terminal side may preset at least one pattern of REs occupied by the CSI-RS in one RB.
- the network device in the present disclosure selects at least two CSI-RSs for time-frequency tracking
- the network device may select according to a preset rule, thereby reducing the overhead of the notification signaling.
- the preset rule for the CSI-RS that selects the time-frequency tracking can be preset, for example, set in advance by a protocol, or configured in advance by signaling.
- the foregoing predetermined rules are only an example. In an actual application, as long as the CSI-RS that can satisfy the condition of reducing the signaling overhead is selected, it is not limited herein.
- the network device sends at least two CSI-RSs to the first terminal.
- Each CSI-RS sent by the network device corresponds to one precoding matrix information, and each precoding matrix information may be beam information of the CSI-RS, and the terminal may implement beam management, channel state information acquisition, and channel information based on the beam information. Rate matching. For example, when the network device sends at least two CSI-RSs to the first terminal, at least one set of reference signals may be sent to the terminal in N time units in one time unit, and each set of reference signals includes time-frequency tracking. At least two CSI-RSs.
- the foregoing time unit set may be a restricted measurement subframe set configured by the network device for the terminal, and the network device sends, to the UE, the M sets of reference signals in the N subframes in the restricted measurement subframe set, where the N
- the subframes may be N consecutive subframes or N consecutive subframes, which are not limited herein.
- the base station sends at least one set of reference signals to the terminal in each subframe, and after receiving the reference signal, the terminal performs corresponding time-frequency tracking, beam management, channel state information acquisition, and the like according to the reference signal in the subframe. Rate matching.
- the first terminal determines, according to the first indication information, at least two CSI-RSs.
- the terminal determines, according to the received first indication information, the location of the RE occupied by the at least two CSI-RSs for time-frequency tracking, and receives the at least two CSI-RSs based on the location of the occupied RE.
- the first terminal performs time-frequency tracking on the data sent by the received network device according to the at least two CSI-RSs.
- the terminal after receiving the at least two CSI-RSs for time-frequency tracking, selects any two CSI-RSs from the CSI-RSs, and then determines the two CSI-RSs. Phase deviation and time interval, then, based on the phase deviation and time interval between the two CSI-RSs, estimate the corresponding frequency deviation, and perform joint time-offset estimation on the two CSI-RSs to estimate the corresponding Time deviation, finally, frequency compensation based on the estimated frequency deviation, time offset based on the estimated time deviation, thereby completing time-frequency tracking, real-time frequency synchronization, eliminating interference, thereby enabling normal communication between the network device and the terminal To improve the user experience.
- the network test can also use the CSI-RS for time-frequency tracking for other purposes to reduce the corresponding pilot overhead. For example, rate matching, beam management, and channel state information acquisition.
- Embodiment 2 is a diagrammatic representation of Embodiment 1:
- FIG. 5 is a schematic flow chart of a method for transmitting a reference signal provided by the present disclosure. The method specifically includes:
- the network device determines time-frequency resources of at least two CSI-RSs in the preset third CSI-RS resource set, or determines at least one CSI-RS group in the pre-configured fourth CSI-RS resource set.
- the network device sends the CSI-RS to the first terminal by using the time-frequency resources of the at least two CSI-RSs.
- the CSI-RS is used for time-frequency tracking.
- determining, in the foregoing step S301, the time-frequency resources of the at least two CSI-RSs in the preset third CSI-RS resource set includes:
- the network device determines, according to the network parameter information, a time-frequency resource of at least two CSI-RSs in the preset third CSI-RS resource set.
- the time-frequency resource of the CSI-RS in the at least one CSI-RS group in the fourth CSI-RS resource set that is configured in the foregoing step S301 is:
- the network device determines a time-frequency resource of the CSI-RS in the at least one CSI-RS group in the pre-configured fourth CSI-RS resource set according to the network matching information.
- the parameter information in the foregoing S301a and S301b includes at least one of the following: a cell ID of a cell managed by the network device, and a mapping relationship between the cell and a time-frequency resource of the CSI-RS, and a cell of the cell managed by the network device.
- the first terminal determines a time-frequency resource of at least two CSI-RSs in the preset third CSI-RS resource set, or determines at least one CSI-RS group in the pre-configured fourth CSI-RS resource set.
- the first terminal receives the CSI-RS by using time-frequency resources of the at least two CSI-RSs, where the CSI-RS is used for time-frequency tracking.
- determining the time-frequency resources of the at least two CSI-RSs in the preset third CSI-RS resource set in the foregoing step S303 including:
- the first terminal determines time-frequency resources of at least two CSI-RSs in the third CSI-RS resource set according to the network parameter information.
- the optional time-frequency resource of the CSI-RS in the at least one CSI-RS group in the fourth CSI-RS resource set, which is included in the foregoing step S303, includes:
- the first terminal determines time-frequency resources of at least two CSI-RSs in the fourth CSI-RS resource set according to the network parameter information.
- the network parameter information in step S303a and step S303b includes at least one of the following information: a serving cell ID of the first terminal, and a mapping relationship between the cell and the time-frequency resource of the CSI-RS, where the server cell of the terminal is located.
- the number of CSI-RS resources in the CSI-RS set configured corresponding to the second CSI-RS resource set is 1.
- determining, according to the foregoing CSI-RS resource quantity 1, a unique CSI-RS group included in the second CSI-RS resource set is a CSI-RS group used for time-frequency tracking.
- the network device does not need to send the first indication information to the terminal side for indication.
- the first terminal performs time-frequency tracking on the data sent by the received network device according to the at least two CSI-RSs.
- step S302 in this embodiment may refer to step S203 in the embodiment.
- step S305 in this embodiment reference may be made to the step S205 of the embodiment. That is, the description related to the first embodiment of the present embodiment can refer to the content in the embodiment, and details are not described herein again.
- Embodiment 3 is a diagrammatic representation of Embodiment 3
- FIG. 6 is a schematic flowchart diagram of another method for transmitting a reference signal according to the present disclosure.
- the terminal when the network device needs to perform actual scheduling on the terminal, the terminal may be instructed to use the time-frequency tracking.
- CSI-RS performs rate matching.
- the steps S201-S204 in the first embodiment are referred to, or the steps S301-S304 in the second embodiment are referenced.
- the method further includes:
- the network device sends the second indication information to the terminal, where the second indication information is used to indicate that the second terminal performs rate matching according to the at least two CSI-RSs.
- the second terminal receives the second indication information.
- the second terminal performs rate matching according to the second indication information and the at least two CSI-RSs.
- rate matching means that bits on the transmission channel are repeated or punctured (puncturing is to destroy the current bit, and the subsequent bits are sequentially advanced) One bit, to match the carrying capacity of the physical channel, and achieve the bit rate required by the transmission format when the channel is mapped.
- the terminal calculates the number of output bits on the transmission channel between the network side and the terminal side according to the pilot patterns of the CSI-RSs, if input The number of bits is less than the number of output bits, that is, using the repetition; if the number of input bits is more than the number of output bits, it is puncturing.
- rate matching technology mentioned in this embodiment is prior art, and therefore, the present disclosure does not limit the specific implementation of rate matching.
- step S202 and step S401 can be simultaneously sent.
- a signaling may be sent, where the first indication information is carried in the signaling, and the second indication information is also carried, and may also be separately sent.
- the order of execution is not limited.
- Embodiment 4 is a diagrammatic representation of Embodiment 4:
- FIG. 7 is a schematic flowchart diagram of another method for transmitting a reference signal provided by the present disclosure.
- any CSI for time-frequency tracking may be used.
- the RS is configured to be used as a pilot resource for beam management by the terminal or other terminal.
- the steps S201-S204 in the first embodiment are referred to, or the steps S301-S304 in the second embodiment are referenced.
- the method further includes:
- the network device sends third indication information to the terminal, where the third indication information is used to instruct the third terminal to perform beam management according to any one of the at least two CSI-RSs.
- the third terminal receives the third indication information.
- the third terminal performs beam management according to the third indication information and any one of the at least two CSI-RSs.
- beam management includes beam calibration and beam tracking.
- performing beam management by using the CSI-RS may include: after receiving the at least two CSI-RSs for time-frequency tracking, the terminal may observe any CSI-RS corresponding to at least two CSI-RSs. Signal strength on the beam for beam calibration and/or beam tracking. It should be noted that the beam management technology mentioned in this embodiment is prior art, and therefore, the present disclosure does not limit the specific implementation of beam management.
- step S202 and step S501 may be sent.
- a signaling may be sent, where the first indication information is carried in the signaling, and the third indication information is also carried, and may also be separately sent.
- the order of execution is not limited.
- Embodiment 5 is a diagrammatic representation of Embodiment 5:
- FIG. 8 is a schematic flowchart diagram of another method for transmitting a reference signal according to the present disclosure.
- any CSI for time-frequency tracking may be used.
- the RS is configured as a pilot resource obtained by the terminal or other terminal as channel state information.
- the steps S201-S204 in the first embodiment are referred to, or the steps S301-S304 in the second embodiment are referenced.
- the method further includes:
- the network device sends fourth indication information to the terminal, where the fourth indication information is used to indicate that the fourth terminal acquires channel state information according to any one of the at least two CSI-RSs.
- the fourth terminal of the opposite end receives the fourth indication information.
- the fourth terminal acquires channel state information according to the fourth indication information and any CSI-RS of the at least two CSI-RSs.
- the channel state information is information that can reflect the channel state, such as a Precoding Matrix Indicator (PMI), a Rank Indication (RI), a Channel Quality Indicator (CQI), and the like.
- the CQI is used to indicate the channel quality of the Physical Downlink Shared Channel (PDSCH)
- the RI is used to indicate the effective data layer of the PDSCH
- the PMI is used to indicate the index of the codebook set.
- acquiring the channel state information by using the CSI-RS may include: after receiving the at least two CSI-RSs for time-frequency tracking, the terminal may observe any CSI-RS of the at least two CSI-RSs. Corresponding to the signal strength on the beam to obtain channel state information.
- step S202 and step S601 may be sent.
- a signaling may be sent, where the first indication information is carried in the signaling, and the fourth indication information is also carried, and may also be separately sent.
- the order of execution is not limited.
- channel state information acquisition technology mentioned in this embodiment is a prior art. Therefore, the specific implementation of the channel state information acquisition is not limited in the present disclosure.
- Embodiment 1 or Embodiment 2 may be combined with any subsequent Embodiment 3 to Embodiment 5, that is, using CSI for time-frequency tracking.
- the RS can also implement at least one of the applications such as rate matching, beam management, and channel state information acquisition, which are not limited herein. It should be noted that although the present disclosure provides only three uses, functions that can be implemented by the CSI-RS for time-frequency tracking provided by the present disclosure are all within the scope of the present disclosure.
- first terminal, the second terminal, the third terminal, and the fourth terminal in the disclosure may be the same terminal or different terminals, which is not limited in this disclosure. It should be noted that the first terminal in the first embodiment and the second embodiment may also be replaced with other terminals, which is not limited herein.
- the present disclosure does not limit the sequence of the above steps performed by the network device and the terminal.
- the order of execution of the above steps should be determined by its function and internal logic, that is, the size of the sequence of the above steps should not be implemented in the embodiment of the present disclosure. Form any limit.
- each of the foregoing network devices or terminals includes a hardware structure and/or a software module corresponding to each function.
- the present disclosure can be implemented in a combination of hardware or hardware and computer software in combination with the algorithm steps of the various examples described in the embodiments disclosed herein. Whether a function is implemented in hardware or computer software to drive hardware depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present disclosure.
- the embodiment of the present disclosure may divide the function module into the network device and the terminal according to the foregoing method example.
- each function module may be divided according to each function, or two or more functions may be integrated into one processing module.
- the above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of the modules in the embodiments of the present disclosure is schematic, and only one logical function is divided, and the actual implementation may have another division manner.
- FIG. 9 is a schematic diagram of a possible configuration of a network device provided by the present disclosure.
- the network device may include: determining unit 701, sending Unit 702, wherein:
- the determining unit 701 is configured to support the network device to execute S201 and S301 shown in FIG. 2 .
- the sending unit 702 is configured to support the network device to perform S202, S302 in FIG. 2, S401 in FIG. 6, S501 in FIG. 7, and step S601 in FIG.
- the network device further includes a selecting unit 703 for supporting the network device to implement the selection process of selecting the required pilot signal according to a predetermined rule as described above.
- FIG. 10 shows a schematic diagram of a simplified base station structure.
- the base station includes a 801 part and an 802 part.
- the 801 part is mainly used for the transmission and reception of radio frequency signals and the conversion of radio frequency signals and baseband signals; the 802 part is mainly used for baseband processing and control of base stations.
- Section 801 can be generally referred to as a transceiver unit, a transceiver, a transceiver circuit, or a transceiver.
- the 802 portion is typically the control center of the base station and may generally be referred to as a processing unit for controlling the base station to perform the steps performed above with respect to the network device. For details, please refer to the description of the relevant part above.
- the transceiver unit of the 801 part which may also be called a transceiver, or a transceiver, etc., includes an antenna and a radio frequency unit, wherein the radio frequency unit is mainly used for radio frequency processing.
- the device for implementing the receiving function in the 801 part may be regarded as a receiving unit
- the device for implementing the transmitting function may be regarded as a transmitting unit, that is, the 801 portion includes a receiving unit and a transmitting unit.
- the receiving unit may also be referred to as a receiver, a receiver, or a receiving circuit, etc.
- the transmitting unit may be referred to as a transmitter, a transmitter, or a transmitting circuit or the like.
- the 802 portion may include one or more boards, each of which may include one or more processors and one or more memories for reading and executing programs in the memory to implement baseband processing functions and for base stations control. If multiple boards exist, the boards can be interconnected to increase processing power. As an optional implementation manner, multiple boards share one or more processors, or multiple boards share one or more memories, or multiple boards share one or more processes at the same time.
- the memory and the processor may be integrated or independently.
- the 801 portion and the 802 portion may be integrated or may be independently arranged.
- all the functions in the 802 part may be implemented in one chip, or may be partially integrated in one chip to realize another part of the function integration in another one or more chips, which is not limited in the disclosure.
- the processing unit is configured to perform the steps performed by the network device in S201, S203 shown in FIG. 2, and/or other in the present disclosure.
- the transceiver unit is configured to perform the steps performed by the network device in S202, S204 in FIG. 2, and/or other steps in the disclosure.
- the transceiver unit is configured to perform the steps performed by the network device in S401 in FIG. 6, and/or other steps in the disclosure.
- the transceiver unit is configured to perform the steps performed by the network device in S501 in FIG. 7, and/or other steps in the disclosure.
- transceiver unit is configured to perform the steps performed by the network device in S601 in FIG. 8, and/or other steps in the disclosure.
- the processing unit is configured to perform the steps performed by the network device in S301 of FIG. 5, and/or other steps in the disclosure.
- the transceiver unit is configured to perform the steps performed by the network device in S302 of FIG. 5, and/or other steps in the disclosure.
- the transceiver unit is configured to perform the steps performed by the network device in S401 in FIG. 6, and/or other steps in the disclosure.
- the transceiver unit is configured to perform the steps performed by the network device in S501 in FIG. 7, and/or other steps in the disclosure.
- transceiver unit is configured to perform the steps performed by the network device in S601 in FIG. 8, and/or other steps in the disclosure.
- FIG. 11 is a schematic diagram of a possible structure of a terminal provided by the present disclosure.
- the terminal may include: a receiving unit 901 and a determining unit 902. ,among them:
- the receiving unit 901 is configured to support the terminal to receive the indication information, the reference signal, and the data sent by the network side, and to support the terminal to execute S304 in FIG. 5.
- the determining unit 902 is configured to support the terminal to execute S204 in FIG. 2, and S303 in FIG. 5.
- the terminal further includes: a time-frequency tracking unit 903, a rate matching unit 904, a beam management unit 905, and a channel detecting unit 906, where:
- the time-frequency tracking unit 903 is configured to support the terminal to execute S305 shown in FIG. 5.
- the rate matching unit 904 is configured to support the terminal to execute S402 shown in FIG. 6.
- the beam management unit 905 is configured to support the terminal to execute S502 shown in FIG. 7.
- the channel detecting unit 906 is configured to support the terminal to execute S602 shown in FIG. 8.
- the embodiment of the present disclosure further provides a terminal under the adopted integrated unit.
- Figure 12 shows a simplified schematic diagram of the terminal structure. It is convenient for understanding and illustration.
- the terminal uses a mobile phone as an example.
- the terminal includes a processor, a memory, a radio frequency circuit, an antenna, and an input and output device.
- the processor is mainly used for processing communication protocols and communication data, and controlling terminals, executing software programs, processing data of software programs, and the like.
- Memory is primarily used to store software programs and data.
- the RF circuit is mainly used for the conversion of the baseband signal and the RF signal and the processing of the RF signal.
- the antenna is mainly used to transmit and receive RF signals in the form of electromagnetic waves.
- Input and output devices such as touch screens, display screens, keyboards, etc.
- touch screens touch screens
- display screens keyboards
- etc. are primarily used to receive user input data and output data to the user. It should be noted that some types of terminals may not have input and output devices.
- the memory and the processor may be integrated or independently.
- the processor When the data needs to be sent, the processor performs baseband processing on the data to be sent, and 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.
- the memory may also be referred to as a storage medium or a storage device or the like.
- the memory may be independent of the processor settings, or may be integrated with the processor, and the embodiment of the present disclosure does not limit this.
- the antenna and the radio frequency circuit having the transceiving function can be regarded as the transceiving unit of the terminal, and the processor having the processing function is regarded as the processing unit of the terminal.
- the terminal includes a transceiver unit 1001 and a processing unit 1002.
- the transceiver unit may also be referred to as a transceiver (including a transmitter and/or receiver), a transceiver, a transceiver, and the like.
- the processing unit may also be referred to as a processor, a processing board, a processing module, a processing device, and the like.
- the device for implementing the receiving function in the transceiver unit 1001 can be regarded as a receiving unit, and the device for implementing the sending function in the transceiver unit 1001 is regarded as a sending unit, that is, the transceiver unit 1001 includes a receiving unit and a sending unit.
- the transceiver unit may also be referred to as a transceiver, a transceiver, or a transceiver circuit.
- the receiving unit may also be referred to as a receiver, a receiver, or a receiving circuit or the like.
- the transmitting unit may also be referred to as a transmitter, a transmitter, or a transmitting circuit, and the like.
- the transceiver unit 1001 and the processing unit 1002 may be integrated or independently.
- all the functions in the processing unit 1002 may be implemented in one chip, or may be partially integrated into one chip to implement another part of the function integration in another one or more chips, which is not limited in the disclosure.
- the transceiving unit 1001 is configured to perform the steps of the terminal performing information transceiving, and/or other steps in the present disclosure.
- Processing unit 1002 is operative to perform S204, S205, and/or other steps in the present disclosure in FIG.
- processing unit 1002 is configured to perform S402 in FIG. 6, and/or other steps in the present disclosure.
- processing unit 1002 is configured to perform S502 in FIG. 7, and/or other steps in the present disclosure.
- processing unit 1002 is configured to perform S602 in FIG. 8, and/or other steps in the present disclosure.
- the transceiving unit 1001 is configured to support the terminal to perform S304 in FIG. 5, and/or other steps in the present disclosure.
- Processing unit 1002 is for performing S303 in FIG. 5, and/or other steps in the present disclosure.
- processing unit 1002 is configured to perform S402 in FIG. 6, and/or other steps in the present disclosure.
- processing unit 1002 is configured to perform S502 in FIG. 7, and/or other steps in the present disclosure.
- processing unit 1002 is configured to perform S602 in FIG. 8, and/or other steps in the present disclosure.
- the processor mentioned above may be a processor or a general term for multiple processing elements.
- the processor is a central processing unit (CPU), may be an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement embodiments of the present disclosure.
- ASIC application specific integrated circuit
- DSPs digital signal processors
- FPGAs field programmable gate arrays
- the processor can perform various functions of the network function node by running or executing a software program stored in the memory and calling data stored in the memory.
- the above memory may be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM) or a device that can store information and instructions.
- Other types of dynamic storage devices may also be electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical disc storage.
- EEPROM electrically erasable programmable read-only memory
- CD-ROM compact disc read-only memory
- Optical disc storage including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.
- magnetic disk storage media or other magnetic storage devices or capable of carrying or storing desired program code in the form of instructions or data structures and capable of Any other medium accessed by a computer, but is not limited thereto.
- the memory can exist independently or be connected to the processor via a communication bus.
- the memory can also be integrated with the processor.
- the memory is used to store a software program that executes the solution provided by
- embodiments of the present disclosure can be provided as a method, system, or computer program product.
- embodiments of the present disclosure can take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware aspects.
- embodiments of the present disclosure may take the form of a computer program product embodied on one or more computer usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
- Embodiments of the present disclosure are described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the present disclosure. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG.
- These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device.
- the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
- the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
- These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
- the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.
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Abstract
Disclosed by the present disclosure are a method and apparatus used for transmitting reference signals. The method comprises: determining first indication information which is used to indicate to a first terminal a time-frequency resource for at least two Channel State Information-Reference Signals (CSI-RS), wherein the at least two CSI-RSes are used for time-frequency tracking; and sending the first indication information to the first terminal.
Description
相关申请的交叉引用Cross-reference to related applications
本公开主张在2017年8月8日在中国提交的中国专利申请号No.201710672897.6的优先权,其全部内容通过引用包含于此。The present disclosure claims priority to Chinese Patent Application No. 201710672897.6, filed on Jan. 8, 2017, the entire content of
本公开涉及无线通信技术领域,特别涉及一种用于传输参考信号的方法及装置。The present disclosure relates to the field of wireless communication technologies, and in particular, to a method and apparatus for transmitting a reference signal.
多普勒效应、中心频率偏移、相位噪声等问题,会引起通信系统中传输的数据信号产生较大的频偏和时偏,从而带来较大干扰,进而导致通信系统的性能下降,甚至无法工作。为了解决这一问题,相关技术主要通过在用户设备根据基站发送的主同步信号(Primary Synchronization Signal,PSS)和辅同步信号(Secondary Synchronization Signal,SSS)达到同步后,基于基站发送的跟踪参考信号(Tracking Reference Signal,TRS)对基站发送的数据信号进行时频跟踪,来对通信系统中传输的信号进行频率和时间的补偿,减弱通信系统中存在时域偏移和频域偏移。Problems such as Doppler effect, center frequency offset, phase noise, etc., may cause large frequency offsets and time offsets in the data signals transmitted in the communication system, thereby causing large interference, which in turn leads to degradation of the performance of the communication system, and even can not work. In order to solve this problem, the related technology is mainly based on the tracking reference signal sent by the base station after the user equipment synchronizes according to the Primary Synchronization Signal (PSS) and the Secondary Synchronization Signal (SSS) sent by the base station. Tracking Reference Signal (TRS) performs time-frequency tracking on the data signals transmitted by the base station to compensate the frequency and time of the signals transmitted in the communication system, and weakens the time domain offset and the frequency domain offset in the communication system.
但是,由于在LTE系统中,终端是根据基站发送的小区特定参考信号(Cell-specific Reference Signal,CRS)来对接收到的基站发送的数据进行时频跟踪的,即LTE系统中的TRS为CRS,而基站在向终端发送CRS时,会持续一直发送,从而导致整个通信系统中存在大量的信令开销以及导频污染。However, in the LTE system, the terminal performs time-frequency tracking on the data transmitted by the received base station according to a cell-specific reference signal (CRS) sent by the base station, that is, the TRS in the LTE system is a CRS. When the base station sends the CRS to the terminal, it will continue to transmit all the time, resulting in a large amount of signaling overhead and pilot pollution in the entire communication system.
发明内容Summary of the invention
第一方面,本公开提供一种用于传输参考信号的方法,包括:确定第一指示信息,该第一指示信息用于向第一终端指示至少两个信道状态信息(Channel State Information,CSI)参考信号(CSI Reference Signal,CSI-RS)的时频资源,该至少两个CSI-RS用于时频跟踪;向第一终端发送第一指示信 息。In a first aspect, the present disclosure provides a method for transmitting a reference signal, including: determining first indication information, the first indication information being used to indicate at least two Channel State Information (CSI) to a first terminal. The time-frequency resource of the CSI Reference Signal (CSI-RS), the at least two CSI-RSs are used for time-frequency tracking; and the first indication information is sent to the first terminal.
相应的,本公开提供一种用于传输参考信号的装置,该装置可以实现第一方面的用于传输参考信号的方法,例如,该装置可以为网络设备,在一种可能的设计中,该装置包括确定单元和发送单元,其中:确定单元,用于确定第一指示信息,该第一指示信息用于指示至少两个CSI-RS的视频资源,该至少两个CSI-RS用于时频跟踪;发送单元,用于向第一终端发送第一指示信息。Accordingly, the present disclosure provides an apparatus for transmitting a reference signal, the apparatus may implement the method for transmitting a reference signal of the first aspect, for example, the apparatus may be a network device, in one possible design, The device includes a determining unit and a sending unit, where: a determining unit, configured to determine first indication information, where the first indication information is used to indicate video resources of at least two CSI-RSs, where the at least two CSI-RSs are used for time-frequency And a sending unit, configured to send the first indication information to the first terminal.
这样本公开中的网络设备通过向第一终端发送第一指示信息,来告知第一终端后续发送的CSI-RS中包含了用于时频跟踪的CSI-RS,从而使得第一终端根据接收到的第一指示信息后能够获取用于时频跟踪的CSI-RS,以进行时频跟踪。这样通过利用已有的导频信号,则可以按照已有的信令通知,从而减少了相应的导频开销,同时,则可以将用作其他用途的导频信号用作时频跟踪,减少了对应的导频开销。Thus, the network device in the present disclosure sends the first indication information to the first terminal, and informs the CSI-RS that is subsequently sent by the first terminal to include the CSI-RS for time-frequency tracking, so that the first terminal receives the After the first indication information, the CSI-RS for time-frequency tracking can be acquired for time-frequency tracking. By using the existing pilot signal, the existing pilot signaling can be reduced according to the existing signaling, and the pilot signal used for other purposes can be used as the time-frequency tracking, which is reduced. Corresponding pilot overhead.
可选的,在第一方面提供的技术方案的一种可能的设计中,第一指示信息用于向第一终端指示第一CSI-RS资源集合中的至少两个CSI-RS的时频资源;或者,第一指示信息用于向第一终端指示第二CSI-RS资源集合中的至少一个CSI-RS组的CSI-RS的时频资源;其中,每个CSI-RS组用于时频跟踪,每个CSI-RS组包括至少两个CSI-RS。其中,上述的第一CSI-RS资源集合包括但不限于:CSI-RS的资源配置信息的集合;上述的第二CSI-RS资源集合中包括但不限于:CSI-RS组的CSI-RS的资源配置信息。示例性的,上述的第一CSI-RS资源集合以及第二CSI-RS资源集合可以为网络侧与终端侧通过预先约定的方式(如,现有协议)提前约定好的CSI-RS资源集合,也可以为网络设备预先为终端配置的用于获取信道状态信息的CSI-RS的CSI-RS资源集合。Optionally, in a possible design of the technical solution provided by the first aspect, the first indication information is used to indicate, to the first terminal, time-frequency resources of at least two CSI-RSs in the first CSI-RS resource set. Or the first indication information is used to indicate to the first terminal, the time-frequency resource of the CSI-RS of the at least one CSI-RS group in the second CSI-RS resource set; wherein each CSI-RS group is used for the time-frequency Tracking, each CSI-RS group includes at least two CSI-RSs. The foregoing first CSI-RS resource set includes, but is not limited to, a set of resource configuration information of a CSI-RS, and the foregoing second CSI-RS resource set includes, but not limited to, a CSI-RS of a CSI-RS group. Resource configuration information. Exemplarily, the foregoing first CSI-RS resource set and the second CSI-RS resource set may be a set of CSI-RS resources agreed by the network side and the terminal side in advance by a pre-agreed manner (for example, an existing protocol). The CSI-RS resource set of the CSI-RS for acquiring channel state information configured for the terminal in advance for the network device may also be used.
进一步可选的,上述的第一指示信息用于向第一终端指示第一CSI-RS资源集合中的至少两个CSI-RS的标识,CSI-RS的标识用于指示CSI-RS的时频资源;或者,第一指示信息用于向第一终端指示第二CSI-RS资源集合中的至少一个CSI-RS组的组号,CSI-RS组的组号用于指示CSI-RS组的CSI-RS的时频资源。Further, the foregoing first indication information is used to indicate, to the first terminal, an identifier of at least two CSI-RSs in the first CSI-RS resource set, where the identifier of the CSI-RS is used to indicate a time frequency of the CSI-RS. The first indication information is used to indicate to the first terminal the group number of the at least one CSI-RS group in the second CSI-RS resource set, where the group number of the CSI-RS group is used to indicate the CSI of the CSI-RS group. -RS time-frequency resources.
示例的,上述的CSI-RS的资源配置信息包括以下信息中至少一项:CSI-RS的周期、CSI-RS的子帧偏置值、CSI-RS的占用的资源块(Resource Block,RB)的位置、CSI-RS的在RB中占用的资源单元RE的个数、CSI-RS的天线端口数目、CSI-RS的序列初始化参数、CSI-RS占用的RE的图样信息以承载该CSI-SR的载波类型。For example, the resource configuration information of the foregoing CSI-RS includes at least one of the following information: a period of a CSI-RS, a subframe offset value of a CSI-RS, and a resource block (RB) occupied by a CSI-RS. Location, the number of resource unit REs occupied by the CSI-RS in the RB, the number of antenna ports of the CSI-RS, the sequence initialization parameters of the CSI-RS, and the pattern information of the RE occupied by the CSI-RS to carry the CSI-SR Carrier type.
可选的,在第一方面或第一方面的任一种可能的设计中,本公开中的第一指示信息包括:该至少两个CSI-RS的所占(Resource Element,RE)的图样信息。Optionally, in the first aspect or any possible design of the first aspect, the first indication information in the disclosure includes: pattern information of the at least two CSI-RSs (Resource Element, RE) .
可选的,在第一方面或第一方面的任一种可能的设计中,第一方面提供的技术方案还包括:直接向第一终端发送一个指示信息,以指示预先配置的至少两个CSI-RS,并指示其用于时频跟踪。示例性的,该技术方案中的第一指示信息包括:该至少两个CSI-RS对应的CSI-RS的资源配置信息,该CSI-RS的资源配置信息用于指示预配置的至少两个CSI-RS,并指示其用于时频跟踪。Optionally, in any one of the first aspect or the first aspect, the technical solution provided by the first aspect further includes: sending an indication information directly to the first terminal, to indicate at least two pre-configured CSIs. -RS and instruct it to be used for time-frequency tracking. For example, the first indication information in the technical solution includes: resource configuration information of a CSI-RS corresponding to the at least two CSI-RSs, where the resource configuration information of the CSI-RS is used to indicate at least two pre-configured CSIs. -RS and instruct it to be used for time-frequency tracking.
可选的,在第一方面或第一方面的任一种可能的设计中,第一方面提供的技术方案还包括:网络设备在确定第一指示信息之前,还可以选择至少两个CSI-RS,从而减少通知信令的开销。相应的,在一种可能的设计中,该装置还包括选择单元。其中:该选择单元用于选择至少两个CSI-RS。示例性的,网络设备可以按照预定规则选择至少两个CSI-RS,其中,该预定规则可以满足下述条件中的至少一种:频域密度大于等于X(X>=1),网络设备天线端口数小于等于Y(Y<=4),时间域符号数小于等于Z(Z<=2)。Optionally, in any one of the possible aspects of the first aspect or the first aspect, the technical solution provided by the first aspect further includes: the network device may further select at least two CSI-RSs before determining the first indication information. , thereby reducing the overhead of notification signaling. Correspondingly, in one possible design, the device further comprises a selection unit. Wherein: the selection unit is used to select at least two CSI-RSs. Exemplarily, the network device may select at least two CSI-RSs according to a predetermined rule, where the predetermined rule may satisfy at least one of the following conditions: the frequency domain density is greater than or equal to X (X>=1), the network device antenna The number of ports is less than or equal to Y (Y<=4), and the number of symbols in the time domain is less than or equal to Z (Z<=2).
可选的,在第一方面或上述第一方面的任一种可能的设计中,第一方面提供的技术方案还包括:将用于时频跟踪的CSI-RS用作其他用途,以减少对应的导频开销。具体的,该技术方案还包括以下方案的至少一种:方案A:向第二终端发送第二指示信息;方案B:向第三终端发送第三指示信息;方案C:向第四终端发送第四指示信息。相应的,在一种可能的设计中,该发送单元还用于实现下述步骤中的至少一个:步骤A:向终端发送第二指示信息;步骤B:向终端发送第三指示信息;步骤C:向终端发送第四指示信息。其中,上述的第二指示信息用于指示第二终端根据至少两个CSI-RS进行速率匹配;上述的第三指示信息用于指示第三终端根据至少两个CSI-RS中的任一 CSI-RS进行波束管理;上述的第四指示信息用于指示第四终端根据至少两个CSI-RS中的任一CSI-RS获取信道状态信息。Optionally, in the first aspect or any one of the foregoing possible configurations, the technical solution provided by the first aspect further includes: using the CSI-RS for time-frequency tracking for other purposes, to reduce the correspondence. Pilot overhead. Specifically, the technical solution further includes at least one of the following: the solution A: sending the second indication information to the second terminal; the solution B: sending the third indication information to the third terminal; and the scenario C: sending the fourth terminal to the fourth terminal Four instructions. Correspondingly, in a possible design, the sending unit is further configured to implement at least one of the following steps: Step A: sending second indication information to the terminal; Step B: transmitting third indication information to the terminal; Step C : Send the fourth indication information to the terminal. The second indication information is used to indicate that the second terminal performs rate matching according to the at least two CSI-RSs. The third indication information is used to indicate that the third terminal is configured according to any one of the at least two CSI-RSs. The RS performs beam management; the foregoing fourth indication information is used to instruct the fourth terminal to acquire channel state information according to any CSI-RS of the at least two CSI-RSs.
第二方面,本公开提供了一种用于传输参考信号的方法,包括:接收第一指示信息,该第一指示信息用于向第一终端指示至少两个CSI-RS的时频资源,该至少两个CSI-RS用于时频跟踪;根据第一指示信息确定至少两个CSI-RS。相应的,本公开一种用于传输参考信号的装置,该装置可以实现第二方面的用于传输参考信号的方法,例如,该装置可以为终端,在一种可能的设计中,该装置包括接收单元和确定单元,其中:接收单元,用于接收第一指示信息,该第一指示信息用于向第一终端指示至少两个CSI-RS的时频资源;确定单元,用于根据第一指示信息确定至少两个CSI-RS。In a second aspect, the present disclosure provides a method for transmitting a reference signal, including: receiving first indication information, where the first indication information is used to indicate, to a first terminal, time-frequency resources of at least two CSI-RSs, where At least two CSI-RSs are used for time-frequency tracking; at least two CSI-RSs are determined according to the first indication information. Accordingly, the present disclosure is an apparatus for transmitting a reference signal, the apparatus may implement the method for transmitting a reference signal of the second aspect, for example, the apparatus may be a terminal, and in one possible design, the apparatus includes a receiving unit and a determining unit, wherein: the receiving unit is configured to receive first indication information, where the first indication information is used to indicate time-frequency resources of at least two CSI-RSs to the first terminal, and the determining unit is configured to use, according to the first The indication information determines at least two CSI-RSs.
可选的,在第二方面提供的技术方案的一种可能的设计中,第二方面提供的技术方案还包括:确定第一CSI-RS资源集合,其中,上述的第一指示信息用于向第一终端指示第一CSI-RS资源集合中的至少两个CSI-RS的时频资源;或者,确定第二CSI-RS资源集合,其中,上述的第一指示信息用于向第一终端指示第二CSI-RS资源集合中的至少一个CSI-RS组的CSI-RS的时频资源;其中,每个CSI-RS组用于时频跟踪,该每个CSI-RS组包括至少两个CSI-RS。相应的,在一种可能的设计中,该确定单元,还用于确定第一CSI-RS资源集合或第二CSI-RS资源集合。示例性的,上述的第一CSI-RS资源集合以及第二CSI-RS资源集合为网络侧与终端侧通过预先约定的方式(如,现有协议)提前约定好的CSI-RS集合,也可以为网络设备预先为终端配置的用于获取信道状态信息的CSI-RS的CSI-RS资源集合。Optionally, in a possible design of the technical solution provided by the second aspect, the technical solution provided by the second aspect further includes: determining a first CSI-RS resource set, where the foregoing first indication information is used to Determining, by the first terminal, a time-frequency resource of at least two CSI-RSs in the first CSI-RS resource set; or determining a second CSI-RS resource set, where the foregoing first indication information is used to indicate to the first terminal a time-frequency resource of a CSI-RS of at least one CSI-RS group in the second CSI-RS resource set; wherein each CSI-RS group is used for time-frequency tracking, and each CSI-RS group includes at least two CSIs -RS. Correspondingly, in a possible design, the determining unit is further configured to determine a first CSI-RS resource set or a second CSI-RS resource set. Exemplarily, the foregoing first CSI-RS resource set and the second CSI-RS resource set are CSI-RS sets that are agreed in advance by the network side and the terminal side in a pre-agreed manner (for example, an existing protocol). A CSI-RS resource set of a CSI-RS for acquiring channel state information configured for a terminal in advance for a network device.
可选的,在第二方面或第二方面的任一种可能的设计中,第二方面提供的技术方案还包括:根据至少两个CSI-RS对接收到的网络设备发送的数据进行时频跟踪。相应的,在一种可能的设计中,该装置还包括:时频跟踪单元,用于根据至少两个CSI-RS对接收到的网络设备发送的数据进行时频跟踪。Optionally, in any one of the possible aspects of the second aspect or the second aspect, the technical solution provided by the second aspect further includes: performing time-frequency on the data sent by the received network device according to the at least two CSI-RSs track. Correspondingly, in a possible design, the apparatus further includes: a time-frequency tracking unit, configured to perform time-frequency tracking on the data sent by the received network device according to the at least two CSI-RSs.
可选的,在第二方面或第二方面的任一种可能的设计中,第二方面提供的技术方案还包括:将用于时频跟踪的CSI-RS用作其他用途,例如,速率匹配,以减少对应的导频开销。具体的,该技术方案还包括:接收第二指示信息,该第二指示信息用于指示终端根据至少两个CSI-RS进行速率匹配,根据 第二指示信息以及至少两个CSI-RS进行速率匹配。相应的,在一种可能的设计中,该接收单元,还用于接收第二指示信息,该第二指示信息用于指示终端根据至少两个CSI-RS进行速率匹配;该终端还包括:速率匹配单元,用于根据第二指示信息以及至少两个CSI-RS进行速率匹配。Optionally, in any one of the possible aspects of the second aspect or the second aspect, the technical solution provided by the second aspect further includes: using the CSI-RS for time-frequency tracking for other purposes, for example, rate matching To reduce the corresponding pilot overhead. Specifically, the technical solution further includes: receiving second indication information, where the second indication information is used to indicate that the terminal performs rate matching according to the at least two CSI-RSs, and performs rate matching according to the second indication information and the at least two CSI-RSs. . Correspondingly, in a possible design, the receiving unit is further configured to receive second indication information, where the second indication information is used to indicate that the terminal performs rate matching according to the at least two CSI-RSs; the terminal further includes: a rate And a matching unit, configured to perform rate matching according to the second indication information and the at least two CSI-RSs.
可选的,在第二方面或第二方面的任一种可能的设计中,第二方面提供的技术方案还包括:将用于时频跟踪的CSI-RS用作其他用途,例如,波束管理,以减少对应的导频开销。具体的,该技术方案还包括:接收第三指示信息,该第三指示信息用于指示终端根据所述至少两个CSI-RS中的任一CSI-RS进行波束管理,根据第三指示信息以及至少两个CSI-RS中的任一CSI-RS进行波束管理。相应的,在一种可能的设计中,该接收单元,还用于接收第三指示信息,该第三指示信息用于指示终端根据至少两个CSI-RS中的任一CSI-RS进行波束管理;该装置还包括:波束管理单元,用于根据第三指示信息以及至少两个CSI-RS中的任一CSI-RS进行波束管理。Optionally, in the second aspect or any possible design of the second aspect, the technical solution provided by the second aspect further includes: using the CSI-RS for time-frequency tracking for other purposes, for example, beam management. To reduce the corresponding pilot overhead. Specifically, the technical solution further includes: receiving third indication information, where the third indication information is used to indicate that the terminal performs beam management according to any one of the at least two CSI-RSs, according to the third indication information, and Beam management is performed on any of the at least two CSI-RSs. Correspondingly, in a possible design, the receiving unit is further configured to receive third indication information, where the third indication information is used to indicate that the terminal performs beam management according to any one of the at least two CSI-RSs. The apparatus further includes: a beam management unit, configured to perform beam management according to the third indication information and any one of the at least two CSI-RSs.
可选的,在第二方面或第二方面的任一种可能的设计中,第二方面提供的技术方案还包括:将用于时频跟踪的CSI-RS用作其他用途,例如,信道状态信息获取,以减少对应的导频开销。该技术方案还包括:接收第四指示信息,该第四指示信息用于指示终端根据至少两个CSI-RS中的任一CSI-RS获取信道状态信息,根据第四指示信息以及至少两个CSI-RS中的任一CSI-RS获取信道状态信息。相应的,在一种可能的设计中,该接收单元,还用于接收第四指示信息,该第四指示信息用于指示终端根据至少两个CSI-RS中的任一CSI-RS获取信道状态信息;该装置还包括:信道检测单元,用于根据第四指示信息以及至少两个CSI-RS中的任一CSI-RS获取信道状态信息。Optionally, in any one of the possible aspects of the second aspect or the second aspect, the technical solution provided by the second aspect further includes: using the CSI-RS for time-frequency tracking for other purposes, for example, a channel state. Information acquisition to reduce the corresponding pilot overhead. The technical solution further includes: receiving fourth indication information, the fourth indication information is used to instruct the terminal to acquire channel state information according to any CSI-RS in the at least two CSI-RSs, according to the fourth indication information and the at least two CSIs - Any CSI-RS in the RS acquires channel state information. Correspondingly, in a possible design, the receiving unit is further configured to receive fourth indication information, where the fourth indication information is used to indicate that the terminal acquires a channel state according to any one of the at least two CSI-RSs. The device further includes: a channel detecting unit, configured to acquire channel state information according to the fourth indication information and any CSI-RS of the at least two CSI-RSs.
第三方面,提供一种用于传输参考信号的方法,包括:确定预先配置的第三CSI-RS资源集合中的至少两个CSI-RS的时频资源,或者,确定预先配置的第四CSI-RS资源集合中的至少一个CSI-RS组中CSI-RS的时频资源,其中,每个CSI-RS组包括至少两个CSI-RS;使用该至少两个CSI-RS的时频资源向第一终端发送CSI-RS,其中,CSI-RS用于时频跟踪。相应的,本公开提供一种用于传输参考信号的装置,该装置可以实现第一方面的用于传输参考信号的方法,例如,该装置可以为网络设备,在一种可能的设计中,该 装置包括确定单元和发送单元,其中:确定单元,用于确定预先配置的第三CSI-RS资源集合中的至少两个CSI-RS的时频资源,或者,用于确定预先配置的第四CSI-RS资源集合中的至少一个CSI-RS组中CSI-RS的时频资源;其中,每个CSI-RS组包括至少两个CSI-RS;发送单元,用于使用至少两个CSI-RS的时频资源向第一终端发送CSI-RS;其中,该CSI-RS用于时频跟踪。In a third aspect, a method for transmitting a reference signal includes: determining a time-frequency resource of at least two CSI-RSs in a preset third CSI-RS resource set, or determining a pre-configured fourth CSI a time-frequency resource of a CSI-RS in at least one CSI-RS group in the RS resource set, wherein each CSI-RS group includes at least two CSI-RSs; using time-frequency resources of the at least two CSI-RSs The first terminal transmits a CSI-RS, wherein the CSI-RS is used for time-frequency tracking. Accordingly, the present disclosure provides an apparatus for transmitting a reference signal, the apparatus may implement the method for transmitting a reference signal of the first aspect, for example, the apparatus may be a network device, in one possible design, The apparatus includes a determining unit and a sending unit, where: the determining unit is configured to determine a time-frequency resource of at least two CSI-RSs in the preset third CSI-RS resource set, or to determine a pre-configured fourth CSI a time-frequency resource of a CSI-RS in at least one CSI-RS group in the RS resource set; wherein each CSI-RS group includes at least two CSI-RSs; a transmitting unit for using at least two CSI-RSs The time-frequency resource sends a CSI-RS to the first terminal; wherein the CSI-RS is used for time-frequency tracking.
这样本公开中的网络侧在确定出预先配置的第三CSI-RS资源集合中的至少两个CSI-RS的时频资源后,便可基于该时频资源向第一终端发送CSI-RS,由于这些CSI-RS是网络侧与终端侧预先约定的CSI-RS,因此,网络侧无需向终端侧发送指示信息进行指示。After the network side in the present disclosure determines the time-frequency resources of the at least two CSI-RSs in the preset third CSI-RS resource set, the CSI-RS may be sent to the first terminal according to the time-frequency resource. Since these CSI-RSs are pre-agreed CSI-RSs on the network side and the terminal side, the network side does not need to send indication information to the terminal side for indication.
可选的,在第三方面的一种可能的设计中,第三方面提供的技术方案还包括:该确定预先配置的第三CSI-RS资源集合中的至少两个CSI-RS的时频资源,包括:根据网络参数信息,确定第三CSI-RS资源集合中的至少两个CSI-RS的时频资源;或者,该确定预先配置的第四CSI-RS资源集合中的至少一个CSI-RS组中CSI-RS的时频资源,包括:根据网络参数信息,确定第三CSI-RS资源集合中的至少两个CSI-RS的时频资源。相应的,在一种可能的设计中,该确定单元在确定预先配置的第三CSI-RS资源集合中的至少两个CSI-RS的时频资源时具体用于:根据网络参数信息,确定预先配置的第三CSI-RS资源集合中的至少两个CSI-RS的时频资源;或者,确定单元在确定预先配置的第四CSI-RS资源集合中的至少一个CSI-RS组中CSI-RS的时频资源时具体用于:根据网络匹配信息,确定预先配置的第四CSI-RS资源集合中的至少一个CSI-RS组中CSI-RS的时频资源。其中,上述的网络参数信息包括以下信息中的至少一种:网络设备管理的小区的小区ID以及小区与CSI-RS的时频资源间的映射关系,网络设备管理的小区的小区所处区域的区域ID以及区域与CSI-RS的时频资源间的映射关系,CSI-RS资源集合所配置CSI-RS集合内CSI-RS资源数量。Optionally, in a possible design of the third aspect, the technical solution provided by the third aspect further includes: determining the time-frequency resource of the at least two CSI-RSs in the preset third CSI-RS resource set. The method includes: determining, according to the network parameter information, a time-frequency resource of at least two CSI-RSs in the third CSI-RS resource set; or determining the at least one CSI-RS in the pre-configured fourth CSI-RS resource set. The time-frequency resource of the CSI-RS in the group includes: determining, according to the network parameter information, a time-frequency resource of at least two CSI-RSs in the third CSI-RS resource set. Correspondingly, in a possible design, when determining the time-frequency resources of the at least two CSI-RSs in the preset third CSI-RS resource set, the determining unit is specifically configured to: determine, according to the network parameter information, the advance a time-frequency resource of at least two CSI-RSs in the configured third CSI-RS resource set; or the determining unit determines CSI-RS in at least one of the pre-configured fourth CSI-RS resource sets The time-frequency resource is specifically configured to: determine time-frequency resources of the CSI-RS in the at least one CSI-RS group in the pre-configured fourth CSI-RS resource set according to the network matching information. The network parameter information includes at least one of the following information: a cell ID of a cell managed by the network device, and a mapping relationship between the cell and a time-frequency resource of the CSI-RS, where the cell of the cell managed by the network device is located The mapping between the area ID and the time-frequency resource of the area and the CSI-RS, and the number of CSI-RS resources in the CSI-RS set configured by the CSI-RS resource set.
可选的,在第三方面或第三方面的任一种可能的设计中,第三方面提供的技术方案还包括:将用于时频跟踪的CSI-RS用作其他用途,例如,速率匹配,波束管理,信道状态信息获取,以减少对应的导频开销。具体实现可参照第一方面的相关描述,这里不再赘述。Optionally, in any one of the possible aspects of the third aspect or the third aspect, the technical solution provided by the third aspect further includes: using the CSI-RS for time-frequency tracking for other purposes, for example, rate matching , beam management, channel state information acquisition to reduce the corresponding pilot overhead. For specific implementation, refer to the related description of the first aspect, and details are not described herein again.
第四方面,本公开提供了一种用于传输参考信号的方法,包括:确定预先配置的第三CSI-RS资源集合中的至少两个CSI-RS的时频资源,或者,确定预先配置的第四CSI-RS资源集合中的至少一个CSI-RS组中CSI-RS的时频资源,其中,每个CSI-RS组包括至少两个CSI-RS;使用至少两个CSI-RS的时频资源接收CSI-RS,其中,所述CSI-RS用于时频跟踪。相应的,本公开提供一种用于传输参考信号的装置,该装置可以实现第一方面的用于传输参考信号的方法,例如,该装置可以为终端,在一种可能的设计中,该终端包括确定单元和接收单元,其中:确定单元,用于确定单元,用于确定预先配置的第三CSI-RS资源集合中的至少两个CSI-RS的时频资源,或者,确定预先配置的第四CSI-RS资源集合中的至少一个CSI-RS组中CSI-RS的时频资源,其中,每个CSI-RS组包括至少两个CSI-RS;接收单元,用于使用至少两个CSI-RS的时频资源接收CSI-RS,其中,CSI-RS用于时频跟踪。In a fourth aspect, the disclosure provides a method for transmitting a reference signal, including: determining a time-frequency resource of at least two CSI-RSs in a preset third CSI-RS resource set, or determining a pre-configured Time-frequency resources of CSI-RSs in at least one CSI-RS group in the fourth CSI-RS resource set, wherein each CSI-RS group includes at least two CSI-RSs; time-frequency using at least two CSI-RSs The resource receives a CSI-RS, wherein the CSI-RS is used for time-frequency tracking. Accordingly, the present disclosure provides an apparatus for transmitting a reference signal, the apparatus may implement the method for transmitting a reference signal of the first aspect, for example, the apparatus may be a terminal, and in one possible design, the terminal a determining unit and a receiving unit, where: a determining unit, configured to determine a unit, configured to determine a time-frequency resource of at least two CSI-RSs in a preset third CSI-RS resource set, or determine a pre-configured first a time-frequency resource of a CSI-RS in at least one CSI-RS group of the four CSI-RS resource sets, wherein each CSI-RS group includes at least two CSI-RSs; and a receiving unit that uses at least two CSI- The time-frequency resource of the RS receives the CSI-RS, wherein the CSI-RS is used for time-frequency tracking.
可选的,在第四方面的一种可能的设计中,第四方面提供的技术方案还包括:该确定预先配置的第三CSI-RS资源集合中的至少两个CSI-RS的时频资源,包括:根据网络参数信息,确定第三CSI-RS资源集合中的至少两个CSI-RS的时频资源;该确定预先配置的第四CSI-RS资源集合中的至少一个CSI-RS组中CSI-RS的时频资源,包括:根据网络参数信息,确定第三CSI-RS资源集合中的至少两个CSI-RS的时频资源。相应的,在一种可能的设计中,该确定单元在确定预先配置的第三CSI-RS资源集合中的至少两个CSI-RS的时频资源时具体用于:根据网络参数信息,确定第三CSI-RS资源集合中的至少两个CSI-RS的时频资源;或者,该确定单元在确定预先配置的第四CSI-RS资源集合中的至少一个CSI-RS组中CSI-RS的时频资源时具体用于:根据网络参数信息,确定第三CSI-RS资源集合中的至少两个CSI-RS的时频资源。其中,上述的网络参数信息包括以下信息中的至少一种:第一终端的服务小区ID以及小区与CSI-RS的时频资源间的映射关系,第一终端的服务器小区所处区域的区域ID以及区域与CSI-RS的时频资源间的映射关系,CSI-RS资源集合所配置CSI-RS集合内CSI-RS资源数量。Optionally, in a possible design of the fourth aspect, the technical solution provided by the fourth aspect further includes: determining the time-frequency resource of the at least two CSI-RSs in the preset third CSI-RS resource set. The method includes: determining time-frequency resources of at least two CSI-RSs in the third CSI-RS resource set according to the network parameter information; determining the at least one CSI-RS group in the pre-configured fourth CSI-RS resource set The time-frequency resource of the CSI-RS includes: determining, according to the network parameter information, a time-frequency resource of at least two CSI-RSs in the third CSI-RS resource set. Correspondingly, in a possible design, when determining the time-frequency resources of the at least two CSI-RSs in the preset third CSI-RS resource set, the determining unit is specifically configured to: determine, according to the network parameter information, Time-frequency resources of at least two CSI-RSs in the three CSI-RS resource sets; or, when the determining unit determines the CSI-RSs in at least one of the pre-configured fourth CSI-RS resource sets The frequency resource is specifically configured to: determine time-frequency resources of at least two CSI-RSs in the third CSI-RS resource set according to the network parameter information. The network parameter information includes at least one of the following information: a serving cell ID of the first terminal, and a mapping relationship between the cell and the time-frequency resource of the CSI-RS, and an area ID of the area where the server cell of the first terminal is located. And a mapping relationship between the area and the time-frequency resource of the CSI-RS, and the number of CSI-RS resources in the CSI-RS set configured by the CSI-RS resource set.
可选的,在第四方面或第四方面的任一种可能的设计中,第四方面提供的技术方案还包括:根据至少两个CSI-RS对接收到的网络设备发送的数据进 行时频跟踪。相应的,在一种可能的设计中,该装置还包括:时频跟踪单元,用于根据至少两个CSI-RS对接收到的网络设备发送的数据进行时频跟踪。Optionally, in any one of the possible configurations of the fourth aspect or the fourth aspect, the technical solution provided by the fourth aspect further includes: performing time-frequency on the data sent by the received network device according to the at least two CSI-RSs track. Correspondingly, in a possible design, the apparatus further includes: a time-frequency tracking unit, configured to perform time-frequency tracking on the data sent by the received network device according to the at least two CSI-RSs.
可选的,在第四方面的一种可能的设计中,第四方面提供的技术方案还包括:将用于时频跟踪的CSI-RS用作其他用途,例如,速率匹配,波束管理,信道状态信息获取,以减少对应的导频开销。具体实现可参照第二方面的相关描述,这里不再赘述。Optionally, in a possible design of the fourth aspect, the technical solution provided by the fourth aspect further includes: using the CSI-RS for time-frequency tracking for other purposes, for example, rate matching, beam management, and channel Status information is obtained to reduce the corresponding pilot overhead. For a specific implementation, refer to the related description of the second aspect, and details are not described herein again.
需要说明的是,本公开中的第一终端、第二终端、第三终端以及第四终端可以为同一终端,也可以为不同终端,本公开对此不做限定。It should be noted that the first terminal, the second terminal, the third terminal, and the fourth terminal in the disclosure may be the same terminal, or may be different terminals, which is not limited in this disclosure.
上述第一方面、第二方面、第三方面以及第四方面提供的任一装置可以通过软件、硬件、或者通过硬件执行相应的软件实现上述方法。该装置可以包括处理器和存储器。该处理器被配置为支持该装置执行上述对应方面的方法中相应的功能。存储器用于与处理器耦合,其保存该装置必要的程序和数据。另外该装置还可以包括通信接口,用于支持该装置与其他网元之间的通信。该通信接口可以是收发器。Any of the devices provided by the first aspect, the second aspect, the third aspect, and the fourth aspect may implement the above method by software, hardware, or by executing corresponding software by hardware. The apparatus can include a processor and a memory. The processor is configured to support the apparatus to perform the corresponding functions of the methods of the corresponding aspects described above. The memory is for coupling with a processor that holds the programs and data necessary for the device. Additionally, the apparatus can also include a communication interface for supporting communication between the apparatus and other network elements. The communication interface can be a transceiver.
本公开还提供了一种计算机存储介质,其上储存有计算机程序,当该程序在计算机上运行时,使得计算机执行上述任一方面所述的方法。The present disclosure also provides a computer storage medium having stored thereon a computer program that, when executed on a computer, causes the computer to perform the method of any of the above aspects.
本公开还提供了一种计算机程序产品,当其在计算机上运行时,使得计算机执行上述任一方面所述的方法。The present disclosure also provides a computer program product, when run on a computer, causing the computer to perform the method of any of the above aspects.
本公开还提供了一种通信芯片,其中存储有指令,当其在网络设备或终端上运行时,使得网络设备或终端执行上述各方面所述的方法。The present disclosure also provides a communication chip in which instructions are stored that, when run on a network device or terminal, cause the network device or terminal to perform the methods described in the various aspects above.
可以理解地,上述提供的任一种装置或计算机存储介质或计算机程序产品均用于执行上文所提供的对应的方法,因此,其所能达到的有益效果可参考对应的方法中的有益效果,此处不再赘述。It is to be understood that any of the devices or computer storage media or computer program products provided above are used to perform the corresponding methods provided above, and therefore, the beneficial effects that can be achieved can be referred to the beneficial effects in the corresponding methods. , will not repeat them here.
图1为本公开实施例提供的技术方案所适用的一种通信系统架构图;FIG. 1 is a structural diagram of a communication system to which the technical solution provided by the embodiment of the present disclosure is applied;
图2为本公开实施例提供的一种传输参考信号的方法的流程示意图;FIG. 2 is a schematic flowchart diagram of a method for transmitting a reference signal according to an embodiment of the present disclosure;
图3为本公开实施例提供的一种导频图;FIG. 3 is a pilot diagram provided by an embodiment of the present disclosure;
图4为本公开实施例提供的另一种导频图;FIG. 4 is another pilot diagram provided by an embodiment of the present disclosure;
图5为本公开实施例提供的又一种传输参考信号的方法的流程示意图;FIG. 5 is a schematic flowchart of still another method for transmitting a reference signal according to an embodiment of the present disclosure;
图6为本公开实施例提供的另一种传输参考信号的方法的流程示意图;FIG. 6 is a schematic flowchart diagram of another method for transmitting a reference signal according to an embodiment of the present disclosure;
图7为本公开实施例提供的又一种传输参考信号的方法的流程示意图;FIG. 7 is a schematic flowchart diagram of still another method for transmitting a reference signal according to an embodiment of the present disclosure;
图8为本公开实施例提供的另一种传输参考信号的方法的流程示意图FIG. 8 is a schematic flowchart diagram of another method for transmitting a reference signal according to an embodiment of the present disclosure.
图9为本公开实施例提供的一种网络设备的结构示意图;FIG. 9 is a schematic structural diagram of a network device according to an embodiment of the present disclosure;
图10为本公开实施例提供的一种基站的结构示意图;FIG. 10 is a schematic structural diagram of a base station according to an embodiment of the present disclosure;
图11为本公开实施例提供的一种终端的结构示意图;FIG. 11 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure;
图12为本公开实施例提供的另一种终端的结构示意图。FIG. 12 is a schematic structural diagram of another terminal according to an embodiment of the present disclosure.
本文中术语“和/或”,仅仅是一种描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。另外,本文中字符“/”,一般表示前后关联对象是一种“或”的关系;在公式中,字符“/”,表示前后关联对象是一种“相除”的关系。。如果不加说明,本文中的“多个”是指两个或两个以上。The term "and/or" in this context is merely an association describing the associated object, indicating that there may be three relationships, for example, A and/or B, which may indicate that A exists separately, and both A and B exist, respectively. B these three situations. In addition, the character "/" in this article generally indicates that the contextual object is an "or" relationship; in the formula, the character "/" indicates that the contextual object is a "divide" relationship. . Unless otherwise stated, "multiple" in this document refers to two or more.
为了便于清楚描述本公开实施例的技术方案,在本公开的实施例中,采用了“第一”、“第二”等字样对功能或作用基本相同的相同项或相似项进行区分,本领域技术人员可以理解“第一”、“第二”等字样并不对数量和执行次序进行限定。In order to facilitate the clear description of the technical solutions of the embodiments of the present disclosure, in the embodiments of the present disclosure, the words "first", "second", etc. are used to distinguish the same or similar items whose functions or functions are substantially the same, in the field. The skilled person will understand that the words "first", "second" and the like do not limit the number and order of execution.
需要说明的是,本公开实施例中,“示例性的”或者“例如”等词用于表示作例子、例证或说明。本公开实施例中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更优选或更具优势。确切而言,使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念。It should be noted that, in the embodiments of the present disclosure, the words "exemplary" or "such as" are used to mean an example, an illustration, or a description. Any embodiment or design described as "exemplary" or "for example" in the disclosed embodiments should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of the words "exemplary" or "such as" is intended to present the concepts in a particular manner.
需要说明的是,本公开实施例中,除非另有说明,“多个”的含义是指两个或两个以上。It should be noted that, in the embodiments of the present disclosure, the meaning of "a plurality" means two or more unless otherwise stated.
需要说明的是,本公开实施例中,“的(英文:of)”,“相应的(英文:corresponding,relevant)”和“对应的(英文:corresponding)”有时可以混用,应当指出的是,在不强调其区别时,其所要表达的含义是一致的。It should be noted that, in the embodiments of the present disclosure, "(English: of)", "corresponding (relevant)" and "corresponding" may sometimes be mixed. It should be noted that When the difference is not emphasized, the meaning to be expressed is the same.
本公开提供的技术方案可以应用于各种通信系统,例如,5G通信系统,未来演进系统或者多种通信融合系统等等。可以包括多种应用场景,例如,机器对机器(machine to machine,M2M)、D2M、宏微通信、增强型移动互联网(enhance mobile broadband,eMBB)、超高可靠性与超低时延通信(ultra reliable&low latency communication,uRLLC)以及海量物联网通信(massive machine type communication,mMTC)等场景。这些场景包括但不限于:终端与终端之间的通信,或网络设备与网络设备之间的通信,或网络设备与终端间的通信等场景中。本公开实施例可以应用于与5G通信系统中的网络设备与终端之间的通信,或终端与终端之间的通信,或网络设备与网络设备之间的通信。The technical solutions provided by the present disclosure can be applied to various communication systems, for example, a 5G communication system, a future evolution system, or a plurality of communication fusion systems, and the like. Can include a variety of application scenarios, such as machine to machine (M2M), D2M, macro communication, enhanced mobile broadband (eMBB), ultra high reliability and ultra low latency communication (ultra Reliable & low latency communication (uRLLC) and massive machine type communication (mMTC) scenarios. These scenarios include, but are not limited to, communication between the terminal and the terminal, or communication between the network device and the network device, or communication between the network device and the terminal. Embodiments of the present disclosure may be applied to communication with a network device and a terminal in a 5G communication system, or communication between a terminal and a terminal, or communication between a network device and a network device.
图1示出了本公开实施例所涉及的通信系统的一种可能的结构示意图。如图1所示,该通信系统包括至少一个网络设备100(图1中仅示出一个)以及每个网络设备100所连接的一个或多个终端200。其中,上述的网络设备100可以为基站、核心网设备、传输节点(transmission reference point,TRP)、中继站或接入点等。网络设备100可以是全球移动通信系统(global system for mobile communication,GSM)或码分多址(code division multiple access,CDMA)网络中的基站收发信台(base transceiver station,BTS),也可以是宽带码分多址(wideband code division multiple access,WCDMA)中的NB(NodeB),还可以是LTE中的eNB或eNodeB(evolutional NodeB)。网络设备100还可以是云无线接入网络(cloud radio access network,CRAN)场景下的无线控制器。网络设备100还可以是5G通信系统中的网络设备或未来演进网络中的网络设备;还可以是可穿戴设备或车载设备等。FIG. 1 is a schematic diagram showing a possible structure of a communication system according to an embodiment of the present disclosure. As shown in FIG. 1, the communication system includes at least one network device 100 (only one is shown in FIG. 1) and one or more terminals 200 to which each network device 100 is connected. The network device 100 may be a base station, a core network device, a transmission reference point (TRP), a relay station, or an access point. The network device 100 may be a base transceiver station (BTS) in a global system for mobile communication (GSM) or a code division multiple access (CDMA) network, or may be a broadband The NB (NodeB) in the code division multiple access (WCDMA) may also be an eNB or an eNodeB (evolutional NodeB) in LTE. The network device 100 may also be a wireless controller in a cloud radio access network (CRAN) scenario. The network device 100 may also be a network device in a 5G communication system or a network device in a future evolved network; it may also be a wearable device or an in-vehicle device or the like.
终端200可以为无线终端也可以为有线终端,该无线终端可以是指向用户提供语音和/或其他业务数据连通性的设备,具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备、未来5G网络中的终端或者未来演进的PLMN网络中的终端等。无线终端可以经无线接入网(Radio Access Network,RAN)与一个或多个核心网进行通信,无线终端可以是移动终端,如移动电话(或称为“蜂窝”电话)和具有移动终端的计算机,例如,可以是便携式、袖珍式、手持式、计算机内置的 或者车载的移动装置,它们与无线接入网交换语言和/或数据,以及个人通信业务(Personal Communication Service,PCS)电话、无绳电话、会话发起协议(Session Initiation Protocol,SIP)话机、无线本地环路(Wireless Local Loop,WLL)站、个人数字助理(Personal Digital Assistant,PDA)等设备,无线终端也可以为移动设备、用户设备(user equipment,UE)、UE终端、接入终端、无线通信设备、终端单元、终端站、移动站(Mobile Station)、移动台(Mobile)、远程站(Remote Station)、远方站、远程终端(Remote Terminal)、订户单元(Subscriber Unit)、订户站(Subscriber Station)、用户代理(User Agent)、终端装置等。上述仅仅是一种示例,实际应用中不限于此。The terminal 200 can be a wireless terminal or a wired terminal, and the wireless terminal can be a device that provides voice and/or other service data connectivity to the user, a handheld device with wireless communication capabilities, a computing device, or other processing connected to the wireless modem. Devices, in-vehicle devices, wearable devices, terminals in future 5G networks, or terminals in a future evolved PLMN network. The wireless terminal can communicate with one or more core networks via a Radio Access Network (RAN), which can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal. For example, it can be a portable, pocket, handheld, computer built-in or in-vehicle mobile device that exchanges language and/or data with a wireless access network, as well as personal communication service (PCS) phones, cordless phones. a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), etc., and the wireless terminal can also be a mobile device or a user device ( User equipment, UE), UE terminal, access terminal, wireless communication device, terminal unit, terminal station, mobile station, mobile station, remote station (Remote Station), remote station, remote terminal (Remote) Terminal), Subscriber Unit, Subscriber Station, User Generation (User Agent), the terminal device and the like. The above is merely an example, and the actual application is not limited thereto.
为了维持通信系统中的业务传输,缓解通信系统中传输的信号的时偏和频偏问题,用户设备需要根据网络设备发送的参考信号进行同步操作。其中,同步又分为初始粗同步和时频跟踪精同步,初始粗同步是根据基站发送的主同步信号(Primary Synchronization Signal,PSS)和辅同步信号(Secondary Synchronization Signal,SSS)来完成的,而用于时频跟踪(Time/Frequency Tracking)精同步的参考信号称为跟踪参考信号(Tracking Reference Signal,TRS),例如,在LTE系统中,用于时频跟踪的TRS为CRS。具体的,时频跟踪可以按照时域和频域划分为两部分:1)时域跟踪和时延扩展估计:跟踪范围取决于TRS的频域密度,跟踪精度取决于TRS的频域带宽;2)频域跟踪和多普勒扩展估计:跟踪范围取决于TRS的时域密度,跟踪精度取决于TRS的时域周期。In order to maintain the traffic transmission in the communication system and alleviate the time offset and frequency offset of the signals transmitted in the communication system, the user equipment needs to perform the synchronization operation according to the reference signal sent by the network device. The synchronization is further divided into initial coarse synchronization and time-frequency tracking fine synchronization, and the initial coarse synchronization is performed according to a Primary Synchronization Signal (PSS) and a Secondary Synchronization Signal (SSS) sent by the base station, and The reference signal used for time synchronization tracking (Time/Frequency Tracking) is called Tracking Reference Signal (TRS). For example, in the LTE system, the TRS for time-frequency tracking is CRS. Specifically, the time-frequency tracking can be divided into two parts according to the time domain and the frequency domain: 1) time domain tracking and delay spread estimation: the tracking range depends on the frequency domain density of the TRS, and the tracking accuracy depends on the frequency domain bandwidth of the TRS; Frequency domain tracking and Doppler spread estimation: The tracking range depends on the time domain density of the TRS, and the tracking accuracy depends on the time domain period of the TRS.
本公开通过使用已有的参考信号(即导频信号)构造新的TRS,以实现时频跟踪。但是,需要说明的是,本公开中提及的用于构造新的TRS的CSI-RS仅仅是一种可能的方式,对于已有的其他导频信号(如,CRS,减少的小区特定参考信号(Reduced CRS,RCRS),PSS,SSS,PRS)也可以用来构造TRS。The present disclosure implements time-frequency tracking by constructing a new TRS using existing reference signals (ie, pilot signals). However, it should be noted that the CSI-RS used in the present disclosure for constructing a new TRS is only one possible way for other existing pilot signals (eg, CRS, reduced cell-specific reference signals). (Reduced CRS, RCRS), PSS, SSS, PRS) can also be used to construct TRS.
应注意的是,本公开中使用已有的导频信号构造新的TRS的构造过程,并不对原始导频信号进行任何处理,仅仅是在发送时通过将至少两个导频信号在时域上聚合进行发送,使得对端终端根据接收到的至少两个导频信号进行时频跟踪。其实质仅仅是将至少两个导频信号作为TRS进行发送。It should be noted that the construction process of constructing a new TRS using the existing pilot signals in the present disclosure does not perform any processing on the original pilot signals, but only by transmitting at least two pilot signals in the time domain at the time of transmission. The aggregation is performed, so that the opposite terminal performs time-frequency tracking according to the received at least two pilot signals. The essence is simply to transmit at least two pilot signals as TRS.
下面将结合本公开实施例的说明书附图,从参考信号传输方法的角度对本公开提供的技术方案进行说明。显然,所描述的是本公开的一部分实施例,而不是全部的实施例。需要说明的是,下文所提供的任意多个技术方案中的部分或全部技术特征在不冲突的情况下,可以结合使用,形成新的技术方案。The technical solutions provided by the present disclosure will be described from the perspective of a reference signal transmission method in conjunction with the drawings of the embodiments of the present disclosure. It is apparent that what is described is a part of the embodiments of the present disclosure, and not all of the embodiments. It should be noted that some or all of the technical features of any of the various technical solutions provided below may be combined to form a new technical solution without conflict.
实施例一:Embodiment 1:
图2示出了本公开提供的一种传输参考信号的方法的流程示意图。该方法具体包括:FIG. 2 is a schematic flow chart of a method for transmitting a reference signal provided by the present disclosure. The method specifically includes:
S201、网络设备确定第一指示信息。S201. The network device determines first indication information.
S202、网络设备向第一终端发送第一指示信息。S202. The network device sends the first indication information to the first terminal.
相应的,对端第一终端接收第一指示信息。Correspondingly, the peer first terminal receives the first indication information.
其中,上述的网络设备可以为图1所示通信系统中的网络设备,例如,基站;上述的第一终端可以为图1所示的通信系统中的终端设备。The foregoing network device may be a network device in the communication system shown in FIG. 1, for example, a base station; and the foregoing first terminal may be a terminal device in the communication system shown in FIG. 1.
本公开中的第一指示信息用于向第一终端指示至少两个CSI-RS的时频资源,该至少两个CSI-RS用于时频跟踪。示例的,该第一指示信息具体用于指示第一终端使用接收到的跟踪参考信号(即本公开将第一指示信息所指示的至少两个CSI-RS当做TRS)进行时频跟踪,直到接收到下一个跟踪参考信号。The first indication information in the disclosure is used to indicate to the first terminal time-frequency resources of at least two CSI-RSs, and the at least two CSI-RSs are used for time-frequency tracking. For example, the first indication information is specifically used to indicate that the first terminal performs time-frequency tracking using the received tracking reference signal (ie, the disclosure indicates that at least two CSI-RSs indicated by the first indication information are TRS) until receiving. Go to the next tracking reference signal.
应该理解的是,本公开中将子载波上承载的用于时频跟踪的参考信号称为跟踪参考信号,即本公开将用于时频跟踪的至少两个CSI-RS称为时频跟踪信号,本公开中的跟踪参考信号是按照该参考信号的内在逻辑功能命令的,因此,本公开中的跟踪参考信号也可以有其他的名字,起名字不能成为对本公开实施例的限定。It should be understood that the reference signal used for time-frequency tracking carried on the sub-carrier is referred to as a tracking reference signal in the present disclosure, that is, the present disclosure refers to at least two CSI-RSs used for time-frequency tracking as a time-frequency tracking signal. The tracking reference signal in the present disclosure is commanded according to the inherent logic function of the reference signal. Therefore, the tracking reference signal in the present disclosure may have other names, and the name cannot be defined as an embodiment of the present disclosure.
由于LTE系统中的基站向UE发送CRS进行时频跟踪时,会一直持续不断的发送,从而导致整个通信系统中存在大量的信令开销以及导频污染。如果设计一个全新的TRS来进行时频跟踪,就需要对其设计全新的导频模型或图样,并使用新的信令进行通知,从而引入较大的参考信号开销,进一步降低资源的使用效率,同时,新的导频信号无法与其他导频信号服用,仅仅只能用作时频跟踪,无法实现其他的功能。When the base station in the LTE system sends the CRS to the UE for time-frequency tracking, it will continue to transmit continuously, resulting in a large amount of signaling overhead and pilot pollution in the entire communication system. If you design a new TRS for time-frequency tracking, you need to design a new pilot model or pattern, and use new signaling to notify, which introduces a large reference signal overhead, further reducing the efficiency of resource utilization. At the same time, the new pilot signal cannot be taken with other pilot signals, it can only be used as time-frequency tracking, and other functions cannot be implemented.
这样本公开中的网络设备通过向终端发送第一指示信息,来告知终端后 续发送的CSI-RS中包含了用于时频跟踪的CSI-RS,从而使得终端根据接收到的第一指示信息后能够获取用于时频跟踪的CSI-RS,以进行时频跟踪。这样利用已有的导频信号,则可以按照已有的信令通知,来减少了相应的导频开销,同时,还可以将用作其他用途的导频信号用作时频跟踪,减少了对应的导频开销。Thus, the network device in the present disclosure sends the first indication information to the terminal to notify the terminal that the CSI-RS sent by the terminal includes the CSI-RS for time-frequency tracking, so that the terminal according to the received first indication information. The CSI-RS for time-frequency tracking can be acquired for time-frequency tracking. By using the existing pilot signal, the corresponding pilot overhead can be reduced according to the existing signaling notification, and the pilot signal used for other purposes can also be used as the time-frequency tracking, which reduces the correspondence. Pilot overhead.
可选的,在确定第一指示信息时,可以按照下述的两种实现方式来确定。具体的:Optionally, when determining the first indication information, the following two implementation manners may be determined. specific:
方式1:网络设备发送的第一指示信息中包含:用于时频跟踪的至少两个CSI-RS对应的CSI-RS的资源配置信息。该CSI-RS的资源配置信息用于指示至少两个CSI-RS,并指示其用于时频跟踪。举例说明,假设基站选择CSI-RS1和CSI-RS2联合进行时频跟踪,基站向终端发送的CSI-RS的并不包含专用于信道状态信息获取的CSI-RS1,此时,参照图3所示的基站向终端发送的CSI-RS的导频图,该导频图中仅包含用于时频跟踪的CSI-RS1和CSI-RS2。Mode 1: The first indication information sent by the network device includes: resource configuration information of CSI-RS corresponding to at least two CSI-RSs for time-frequency tracking. The resource configuration information of the CSI-RS is used to indicate at least two CSI-RSs and is indicated for time-frequency tracking. For example, it is assumed that the base station selects CSI-RS1 and CSI-RS2 to jointly perform time-frequency tracking, and the CSI-RS transmitted by the base station to the terminal does not include CSI-RS1 dedicated to channel state information acquisition. A pilot map of a CSI-RS transmitted by a base station to a terminal, the pilot map including only CSI-RS1 and CSI-RS2 for time-frequency tracking.
举例说明,假设基站选择CSI-RS1和CSI-RS2联合进行时频跟踪,基站向终端发送的CSI-RS的并不包含专用于信道状态信息获取的CSI-RS1,此时,参照图3所示的基站向终端发送的CSI-RS的导频图,该导频图中仅包含用于时频跟踪的CSI-RS1和CSI-RS2。For example, it is assumed that the base station selects CSI-RS1 and CSI-RS2 to jointly perform time-frequency tracking, and the CSI-RS transmitted by the base station to the terminal does not include CSI-RS1 dedicated to channel state information acquisition. A pilot map of a CSI-RS transmitted by a base station to a terminal, the pilot map including only CSI-RS1 and CSI-RS2 for time-frequency tracking.
方式2:网络侧可以直接向终端发送第一指示信息,以指示预先配置的至少两个CSI-RS,并指示其用于时频跟踪。Manner 2: The network side may directly send the first indication information to the terminal to indicate at least two pre-configured CSI-RSs, and indicate them for time-frequency tracking.
示例性的,第一指示信息用于向第一终端指示第一CSI-RS资源集合中的至少两个CSI-RS的时频资源;或者,第一指示信息用于向第一终端指示第二CSI-RS资源集合中的至少一个CSI-RS组的CSI-RS的时频资源。其中,每个CSI-RS组用于时频跟踪,每个CSI-RS组包括至少两个CSI-RS。在方式1中,上述的第一CSI-RS资源集合以及第二CSI-RS资源集合为网络设备为第一终端配置的已有的用于获取信道状态信息(或其他用途,如波束管理)的CSI-RS的CSI-RS资源集合,由于该CSI-RS资源集合为网络设备为第一终端已经配置好的用于其他用途的CSI-RS的CSI-RS资源集合。因此,本公开可以直接向第一终端发送第一指示信息,以指示预先配置的至少两个CSI-RS,并指示 其用于时频跟踪,而终端在接收到第一指示信息后便可在已配置的CSI-RS资源集合查找对应的时频资源,以接收用于时频跟踪的CSI-RS,无需为第一终端配置专门的TRS的时频资源,可以直接利用网络侧为中的时频资源,减少了信令开销。For example, the first indication information is used to indicate to the first terminal, the time-frequency resource of the at least two CSI-RSs in the first CSI-RS resource set; or the first indication information is used to indicate the second terminal to the first terminal. A time-frequency resource of a CSI-RS of at least one CSI-RS group in the CSI-RS resource set. Each CSI-RS group is used for time-frequency tracking, and each CSI-RS group includes at least two CSI-RSs. In the mode 1, the foregoing first CSI-RS resource set and the second CSI-RS resource set are existing existing network device configured for the first terminal for acquiring channel state information (or other uses, such as beam management). The CSI-RS resource set of the CSI-RS, because the CSI-RS resource set is a CSI-RS resource set of the CSI-RS that the network device is configured for the first terminal. Therefore, the disclosure may directly send the first indication information to the first terminal to indicate the pre-configured at least two CSI-RSs, and indicate that they are used for time-frequency tracking, and the terminal may be in the first indication information after receiving the first indication information. The configured CSI-RS resource set searches for the corresponding time-frequency resource to receive the CSI-RS for time-frequency tracking, and does not need to configure a dedicated TRS time-frequency resource for the first terminal, and can directly use the network side as the medium time. Frequency resources, reducing signaling overhead.
举例说明,参照图4所示的基站向终端发送的CSI-RS的导频图,该导频图体现了4个CSI-RS1的RE位置,即基站向终端发送的用于信道状态信息获取的CSI-RS1有4个(即CSI-RS1、CSI-RS2、CSI-RS3和CSI-RS4),其中,CSI-RS1和CSI-RS2为基站选择的用于时频跟踪的CSI-RS。For example, refer to the pilot map of the CSI-RS transmitted by the base station to the terminal shown in FIG. 4, where the pilot map embodies the RE positions of the four CSI-RS1s, that is, the base station sends the channel status information to the terminal. There are 4 CSI-RS1s (ie, CSI-RS1, CSI-RS2, CSI-RS3, and CSI-RS4), where CSI-RS1 and CSI-RS2 are CSI-RSs selected by the base station for time-frequency tracking.
在一种示例中,该第一指示信息包括:该至少两个CSI-RS的所占RE的图样信息。In an example, the first indication information includes: pattern information of the occupied REs of the at least two CSI-RSs.
方式3:网络侧与终端测按照约定方式为双方预配置CSI-RS资源集合,然后,通过发送第一指示信息以指示终端从预配置的CSI-RS资源集合中查找到对应的CSI-RS的时频资源。Manner 3: The network side and the terminal test pre-configure the CSI-RS resource set for the two parties according to the agreed manner, and then send the first indication information to instruct the terminal to find the corresponding CSI-RS from the pre-configured CSI-RS resource set. Time-frequency resources.
示例性的,上述的第一指示信息用于向第一终端指示第一CSI-RS资源集合中的至少两个CSI-RS的时频资源;或者,第一指示信息用于向第一终端指示第二CSI-RS资源集合中的至少一个CSI-RS组的CSI-RS的时频资源,其中,每个CSI-RS组用于时频跟踪,每个CSI-RS组包括至少两个CSI-RS。在方式2中,上述的第一CSI-RS资源集合以及第二CSI-RS资源集合为;网络侧与终端测按照预先预定的方式(如,已有协议)预先配置的CSI-RS资源集合,因此,网络设备可以直接向终端发送第一指示信息来指示预先配置的CSI-RS资源集合所配置的CSI-RS集合中哪些CSI-RS或哪些CSI-RS组用于时频跟踪。For example, the foregoing first indication information is used to indicate, to the first terminal, time-frequency resources of at least two CSI-RSs in the first CSI-RS resource set; or, the first indication information is used to indicate to the first terminal. a time-frequency resource of a CSI-RS of at least one CSI-RS group in the second CSI-RS resource set, wherein each CSI-RS group is used for time-frequency tracking, and each CSI-RS group includes at least two CSI- RS. In the mode 2, the foregoing first CSI-RS resource set and the second CSI-RS resource set are: the network side and the terminal measure a CSI-RS resource set pre-configured according to a predetermined manner (eg, an existing protocol), Therefore, the network device may directly send the first indication information to the terminal to indicate which CSI-RSs or CSI-RS groups in the CSI-RS set configured by the pre-configured CSI-RS resource set are used for time-frequency tracking.
在一种示例中,该第一指示信息包括:该至少两个CSI-RS的所占RE的图样信息。In an example, the first indication information includes: pattern information of the occupied REs of the at least two CSI-RSs.
进一步可选的,在上述方式1与方式2中的第一指示信息用于向第一终端指示第一CSI-RS资源集合中的至少两个CSI-RS的标识,该CSI-RS的标识用于指示CSI-RS的时频资源。在上述方式1与方式2中的第一指示信息用于向第一终端指示第二CSI-RS资源集合中的至少一个CSI-RS组的组号;其中,CSI-RS组的组号用于指示CSI-RS组的CSI-RS的时频资源。Further, the first indication information in the foregoing manners 1 and 2 is used to indicate, to the first terminal, an identifier of at least two CSI-RSs in the first CSI-RS resource set, where the identifier of the CSI-RS is used. The time-frequency resource indicating the CSI-RS. The first indication information in the foregoing manners 1 and 2 is used to indicate, to the first terminal, a group number of at least one CSI-RS group in the second CSI-RS resource set; wherein the group number of the CSI-RS group is used A time-frequency resource indicating a CSI-RS of the CSI-RS group.
在一种示例中,该第一指示信息包括:该至少两个CSI-RS的所占RE的图样信息。In an example, the first indication information includes: pattern information of the occupied REs of the at least two CSI-RSs.
其中,上述的第一CSI-RS资源集合以及第二CSI-RS资源集合中包含的CSI-RS的资源配置信息包括以下参考中至少一项:该CSI-RS的周期、CSI-RS的子帧偏置值、CSI-RS的占用的RB的位置、CSI-RS的在RB中占用的资源单元RE的个数、CSI-RS的天线端口数目、CSI-RS的序列初始化参数、CSI-RS占用的RE的图样信息以承载该CSI-SR的载波类型。上述的CSI-RS的周期和子帧偏置值可以表示该CSI-RS占用的子帧信息;可选的,可以通过比特映射的方式表示CSI-RS占用的子帧信息。举例来说,用1和0分别表示一个子帧上有CSI-RS和一个子帧上没有CSI-RS,可选的,该比特数可以是5、10、20或40等等。但本公开不限于于此。上述的CSI-RS占用的RE的图样信息包括CSI-RS占用的RE的图样索引,这样,终端可以根据该图样索引和预设的图样来确定该CSI-RS在一个RB中占用的RE,但本公开不限于此。The resource configuration information of the CSI-RS included in the first CSI-RS resource set and the second CSI-RS resource set includes at least one of the following: a period of the CSI-RS, and a subframe of the CSI-RS. Offset value, location of occupied RB of CSI-RS, number of resource unit REs occupied by RRC in CSI-RS, number of antenna ports of CSI-RS, sequence initialization parameters of CSI-RS, CSI-RS occupation The pattern information of the RE to carry the carrier type of the CSI-SR. The period of the CSI-RS and the subframe offset value may be used to indicate the subframe information occupied by the CSI-RS. Optionally, the subframe information occupied by the CSI-RS may be represented by a bit mapping manner. For example, 1 and 0 respectively indicate that there is a CSI-RS on one subframe and no CSI-RS on one subframe. Alternatively, the number of bits may be 5, 10, 20 or 40, and the like. However, the present disclosure is not limited to this. The pattern information of the RE occupied by the CSI-RS includes the pattern index of the RE occupied by the CSI-RS, so that the terminal can determine the RE occupied by the CSI-RS in one RB according to the pattern index and the preset pattern, but The present disclosure is not limited to this.
当然,网络侧和终端侧可以预先设置该CSI-RS的部分资源配置信息,例如,可以预先设置该CSI-RS占用系统带宽中的几个RB,或预先设置该CSI-RS的周期或占用的RB的数目,等等。相应地,网络侧和终端侧可以预先设置该CSI-RS在一个RB中占用的RE的至少一个图样。Certainly, the network side and the terminal side may preset the partial resource configuration information of the CSI-RS. For example, the CSI-RS may be preset to occupy a few RBs of the system bandwidth, or the period or the occupied CSI-RS may be preset. The number of RBs, and so on. Correspondingly, the network side and the terminal side may preset at least one pattern of REs occupied by the CSI-RS in one RB.
可选的,本公开中网络设备在选取用于时频跟踪的至少两个CSI-RS时,可以按照预设规则进行选择,从而减少通知信令的开销。对于选择进行时频跟踪的CSI-RS的预设规则是可以预先设置好的,例如预先通过协议设置的,或者预先通过信令配置的。示例性的,该预设规则可以满足下述条件中的至少一种:频域密度大于等于X(X>=1),网络侧天线端口数小于等于Y(Y<=4),时间域符号数小于等于Z(Z<=2)。当然,上述的几种预定规则仅仅是一种示例,在实际应用中,只要可以满足减少通知信令开销的条件的CSI-RS均可以选取,这里不做限定。Optionally, when the network device in the present disclosure selects at least two CSI-RSs for time-frequency tracking, the network device may select according to a preset rule, thereby reducing the overhead of the notification signaling. The preset rule for the CSI-RS that selects the time-frequency tracking can be preset, for example, set in advance by a protocol, or configured in advance by signaling. Exemplarily, the preset rule may satisfy at least one of the following conditions: the frequency domain density is greater than or equal to X (X>=1), the number of network side antenna ports is less than or equal to Y (Y<=4), and the time domain symbol The number is less than or equal to Z (Z <= 2). Certainly, the foregoing predetermined rules are only an example. In an actual application, as long as the CSI-RS that can satisfy the condition of reducing the signaling overhead is selected, it is not limited herein.
S203、网络设备向第一终端发送至少两个CSI-RS。S203. The network device sends at least two CSI-RSs to the first terminal.
网络设备发送的每个CSI-RS对应一个预编码矩阵信息,而每个预编码矩阵信息可以是该CSI-RS的波束信息,终端基于波束信息便可对信道实现波束管理、信道状态信息获取以及速率匹配。示例性的,网络设备向第一终端发 送至少两个CSI-RS时,可以在一个时间单元内的N个时间单元向终端发送至少一套参考信号,每套参考信号包括用于时频跟踪的至少两个CSI-RS。其中,上述的时间单元集可以是网络设备为终端配置的一个限制性测量子帧集,网络设备在该限制性测量子帧集内的N个子帧向UE发送M套参考信号,其中,该N个子帧可以是N个连续的子帧或N个不连续的子帧,在此不做限定。具体的,基站在每个子帧向终端发送至少一套参考信号,而终端在接收到参考信号后,便根据参考信号在该子帧内进行相应的时频跟踪、波束管理、信道状态信息获取以及速率匹配。Each CSI-RS sent by the network device corresponds to one precoding matrix information, and each precoding matrix information may be beam information of the CSI-RS, and the terminal may implement beam management, channel state information acquisition, and channel information based on the beam information. Rate matching. For example, when the network device sends at least two CSI-RSs to the first terminal, at least one set of reference signals may be sent to the terminal in N time units in one time unit, and each set of reference signals includes time-frequency tracking. At least two CSI-RSs. The foregoing time unit set may be a restricted measurement subframe set configured by the network device for the terminal, and the network device sends, to the UE, the M sets of reference signals in the N subframes in the restricted measurement subframe set, where the N The subframes may be N consecutive subframes or N consecutive subframes, which are not limited herein. Specifically, the base station sends at least one set of reference signals to the terminal in each subframe, and after receiving the reference signal, the terminal performs corresponding time-frequency tracking, beam management, channel state information acquisition, and the like according to the reference signal in the subframe. Rate matching.
S204、第一终端根据第一指示信息确定至少两个CSI-RS。S204. The first terminal determines, according to the first indication information, at least two CSI-RSs.
示例性的,终端根据接收到的第一指示信息确定出用于时频跟踪的至少两个CSI-RS所占RE的位置,基于其所占RE的位置接收到该至少两个CSI-RS。Exemplarily, the terminal determines, according to the received first indication information, the location of the RE occupied by the at least two CSI-RSs for time-frequency tracking, and receives the at least two CSI-RSs based on the location of the occupied RE.
S205、第一终端根据至少两个CSI-RS对接收到的网络设备发送的数据进行时频跟踪。S205. The first terminal performs time-frequency tracking on the data sent by the received network device according to the at least two CSI-RSs.
在一种示例中,终端在接收到用于时频跟踪的至少两个CSI-RS后,会从这些CSI-RS中选择出任意两个CSI-RS,然后确定出这两个CSI-RS之间的相位偏差及时间间隔,接着,基于这两个CSI-RS之间的相位偏差及时间间隔,估算相应的频率偏差,以及对这两个CSI-RS进行联合时偏估计,估算出相应的时间偏差,最后,基于估算出的频率偏差进行频率补偿,基于估算出的时间偏差进行时间偏移,从而完成时频跟踪,即时频同步,消除干扰,从而使得网络设备与终端之间能够正常通信,提高用户体验。In an example, after receiving the at least two CSI-RSs for time-frequency tracking, the terminal selects any two CSI-RSs from the CSI-RSs, and then determines the two CSI-RSs. Phase deviation and time interval, then, based on the phase deviation and time interval between the two CSI-RSs, estimate the corresponding frequency deviation, and perform joint time-offset estimation on the two CSI-RSs to estimate the corresponding Time deviation, finally, frequency compensation based on the estimated frequency deviation, time offset based on the estimated time deviation, thereby completing time-frequency tracking, real-time frequency synchronization, eliminating interference, thereby enabling normal communication between the network device and the terminal To improve the user experience.
此外,网络测还可以将用于时频跟踪的CSI-RS用作其他用途,以减少对应的导频开销。例如,速率匹配、波束管理以及信道状态信息获取。In addition, the network test can also use the CSI-RS for time-frequency tracking for other purposes to reduce the corresponding pilot overhead. For example, rate matching, beam management, and channel state information acquisition.
实施例二:Embodiment 2:
图5示出了本公开提供的一种传输参考信号的方法的流程示意图。该方法具体包括:FIG. 5 is a schematic flow chart of a method for transmitting a reference signal provided by the present disclosure. The method specifically includes:
S301、网络设备确定预先配置的第三CSI-RS资源集合中的至少两个CSI-RS的时频资源,或者,确定预先配置的第四CSI-RS资源集合中的至少一个CSI-RS组中CSI-RS的时频资源,其中,每个CSI-RS组包括至少两个CSI-RS。S301. The network device determines time-frequency resources of at least two CSI-RSs in the preset third CSI-RS resource set, or determines at least one CSI-RS group in the pre-configured fourth CSI-RS resource set. A time-frequency resource of a CSI-RS, wherein each CSI-RS group includes at least two CSI-RSs.
S302、网络设备使用至少两个CSI-RS的时频资源向第一终端发送CSI-RS;其中,CSI-RS用于时频跟踪。S302. The network device sends the CSI-RS to the first terminal by using the time-frequency resources of the at least two CSI-RSs. The CSI-RS is used for time-frequency tracking.
可选的,上述步骤S301中确定预先配置的第三CSI-RS资源集合中的至少两个CSI-RS的时频资源包括:Optionally, determining, in the foregoing step S301, the time-frequency resources of the at least two CSI-RSs in the preset third CSI-RS resource set includes:
S301a、网络设备根据网络参数信息,确定预先配置的第三CSI-RS资源集合中的至少两个CSI-RS的时频资源。S301a. The network device determines, according to the network parameter information, a time-frequency resource of at least two CSI-RSs in the preset third CSI-RS resource set.
可选的,上述步骤S301中确定预先配置的第四CSI-RS资源集合中的至少一个CSI-RS组中CSI-RS的时频资源包括:Optionally, the time-frequency resource of the CSI-RS in the at least one CSI-RS group in the fourth CSI-RS resource set that is configured in the foregoing step S301 is:
S301b、网络设备根据网络匹配信息,确定预先配置的第四CSI-RS资源集合中的至少一个CSI-RS组中CSI-RS的时频资源。S301b: The network device determines a time-frequency resource of the CSI-RS in the at least one CSI-RS group in the pre-configured fourth CSI-RS resource set according to the network matching information.
其中,上述S301a、S301b中的参数信息包括以下信息中的至少一种:网络设备管理的小区的小区ID以及小区与CSI-RS的时频资源间的映射关系,网络设备管理的小区的小区所处区域的区域ID以及区域与CSI-RS的时频资源间的映射关系,CSI-RS资源集合所配置CSI-RS集合内CSI-RS资源数量。The parameter information in the foregoing S301a and S301b includes at least one of the following: a cell ID of a cell managed by the network device, and a mapping relationship between the cell and a time-frequency resource of the CSI-RS, and a cell of the cell managed by the network device. The area ID of the area and the mapping relationship between the area and the time-frequency resource of the CSI-RS, and the number of CSI-RS resources in the CSI-RS set configured by the CSI-RS resource set.
S303、第一终端确定预先配置的第三CSI-RS资源集合中的至少两个CSI-RS的时频资源,或者,确定预先配置的第四CSI-RS资源集合中的至少一个CSI-RS组中CSI-RS的时频资源;其中,每个CSI-RS组包括至少两个CSI-RS。S303. The first terminal determines a time-frequency resource of at least two CSI-RSs in the preset third CSI-RS resource set, or determines at least one CSI-RS group in the pre-configured fourth CSI-RS resource set. A time-frequency resource of a medium CSI-RS; wherein each CSI-RS group includes at least two CSI-RSs.
S304、第一终端使用至少两个CSI-RS的时频资源接收CSI-RS;其中,CSI-RS用于时频跟踪。S304. The first terminal receives the CSI-RS by using time-frequency resources of the at least two CSI-RSs, where the CSI-RS is used for time-frequency tracking.
可选的,上述步骤S303中确定预先配置的第三CSI-RS资源集合中的至少两个CSI-RS的时频资源,包括:Optionally, determining the time-frequency resources of the at least two CSI-RSs in the preset third CSI-RS resource set in the foregoing step S303, including:
S303a、第一终端根据网络参数信息,确定第三CSI-RS资源集合中的至少两个CSI-RS的时频资源。S303a. The first terminal determines time-frequency resources of at least two CSI-RSs in the third CSI-RS resource set according to the network parameter information.
可选的上述步骤S303中确定预先配置的第四CSI-RS资源集合中的至少一个CSI-RS组中CSI-RS的时频资源,包括:The optional time-frequency resource of the CSI-RS in the at least one CSI-RS group in the fourth CSI-RS resource set, which is included in the foregoing step S303, includes:
S303b、第一终端根据网络参数信息,确定第四CSI-RS资源集合中的至少两个CSI-RS的时频资源。S303b: The first terminal determines time-frequency resources of at least two CSI-RSs in the fourth CSI-RS resource set according to the network parameter information.
其中,步骤S303a与步骤S303b中的网络参数信息包括以下信息中的至 少一种:第一终端的服务小区ID以及小区与CSI-RS的时频资源间的映射关系,终端的服务器小区所处区域的区域ID以及区域与CSI-RS的时频资源间的映射关系,CSI-RS资源集合所配置CSI-RS集合内CSI-RS资源数量。The network parameter information in step S303a and step S303b includes at least one of the following information: a serving cell ID of the first terminal, and a mapping relationship between the cell and the time-frequency resource of the CSI-RS, where the server cell of the terminal is located. The area ID and the mapping relationship between the area and the time-frequency resource of the CSI-RS, and the number of CSI-RS resources in the CSI-RS set configured by the CSI-RS resource set.
在一种示例中,假如该第二CSI-RS资源集合仅包含一个CSI-RS组时,则对应第二CSI-RS资源集合所配置CSI-RS集合内CSI-RS资源数量为1,此时,根据上述的CSI-RS资源数量1直接确定该第二CSI-RS资源集合中所包含的唯一的CSI-RS组为用于时频跟踪的CSI-RS组。在这种场景下,网络设备无需向终端侧发送第一指示信息进行指示。In an example, if the second CSI-RS resource set includes only one CSI-RS group, the number of CSI-RS resources in the CSI-RS set configured corresponding to the second CSI-RS resource set is 1. And determining, according to the foregoing CSI-RS resource quantity 1, a unique CSI-RS group included in the second CSI-RS resource set is a CSI-RS group used for time-frequency tracking. In this scenario, the network device does not need to send the first indication information to the terminal side for indication.
305、第一终端根据至少两个CSI-RS对接收到的网络设备发送的数据进行时频跟踪。305. The first terminal performs time-frequency tracking on the data sent by the received network device according to the at least two CSI-RSs.
需要说明的时,本实施例中步骤S302可参照实施例中的步骤S203。本实施例中步骤S305可参照实施例一种的步骤S205.即本实施例与实施例一相关的描述均可参照实施例中的内容,这里不再赘述。For the description, step S302 in this embodiment may refer to step S203 in the embodiment. For the step S305 in this embodiment, reference may be made to the step S205 of the embodiment. That is, the description related to the first embodiment of the present embodiment can refer to the content in the embodiment, and details are not described herein again.
实施例三:Embodiment 3:
图6示出了本公开提供的另一种传输参考信号的方法的流程示意图,在本实施例三中,当网络设备需要对终端进行实际调度时,则可以指示终端使用用于时频跟踪的CSI-RS进行速率匹配。FIG. 6 is a schematic flowchart diagram of another method for transmitting a reference signal according to the present disclosure. In the third embodiment, when the network device needs to perform actual scheduling on the terminal, the terminal may be instructed to use the time-frequency tracking. CSI-RS performs rate matching.
如图6所示,引用实施例一中的步骤S201-S204,或者,引用实施例二中的步骤S301-S304,在此基础上,该方法还包括:As shown in FIG. 6, the steps S201-S204 in the first embodiment are referred to, or the steps S301-S304 in the second embodiment are referenced. On the basis of the method, the method further includes:
S401、网络设备向终端发送第二指示信息,该第二指示信息用于指示第二终端根据至少两个CSI-RS进行速率匹配。相应的,对端第二终端接收该第二指示信息。S401. The network device sends the second indication information to the terminal, where the second indication information is used to indicate that the second terminal performs rate matching according to the at least two CSI-RSs. Correspondingly, the second terminal receives the second indication information.
S402、第二终端根据第二指示信息以及至少两个CSI-RS进行速率匹配。S402. The second terminal performs rate matching according to the second indication information and the at least two CSI-RSs.
在步骤S306中,速率匹配(Rate matching)是指传输信道上的比特被重发(repeated)或者被打孔(punctured)(打孔就是将当前的比特打掉,同时将后面的比特依次前移一位),以匹配物理信道的承载能力,信道映射时达到传输格式所要求的比特速率。示例的,终端在接收到用于时频跟踪的至少两个CSI-RS后,根据这些CSI-RS的导频模式,计算出网络侧与终端侧间的传输信道上的输出比特数,若输入比特数少于输出比特数,那就是用repetition; 如果输入比特数多于输出比特数,那就是用puncturing。In step S306, rate matching means that bits on the transmission channel are repeated or punctured (puncturing is to destroy the current bit, and the subsequent bits are sequentially advanced) One bit, to match the carrying capacity of the physical channel, and achieve the bit rate required by the transmission format when the channel is mapped. For example, after receiving the at least two CSI-RSs for time-frequency tracking, the terminal calculates the number of output bits on the transmission channel between the network side and the terminal side according to the pilot patterns of the CSI-RSs, if input The number of bits is less than the number of output bits, that is, using the repetition; if the number of input bits is more than the number of output bits, it is puncturing.
应注意,本实施例提及的速率匹配技术为现有技术,因此,本公开对于速率匹配的具体实现并不做限定。It should be noted that the rate matching technology mentioned in this embodiment is prior art, and therefore, the present disclosure does not limit the specific implementation of rate matching.
需要说明的是,上述的步骤S202和步骤S401可以同时发送,示例的,可以发送一信令,该信令中即携带第一指示信息,还携带第二指示信息,也可以分别发送,本公开并不限定其执行的先后顺序。It should be noted that the foregoing step S202 and step S401 can be simultaneously sent. For example, a signaling may be sent, where the first indication information is carried in the signaling, and the second indication information is also carried, and may also be separately sent. The order of execution is not limited.
实施例四:Embodiment 4:
图7示出了本公开提供的另一种传输参考信号的方法的流程示意图,在本实施例三中,当网络设备需要对终端进行实际调度时,可以将用于时频跟踪的任一CSI-RS配置给本终端或其他终端作为波束管理的导频资源。FIG. 7 is a schematic flowchart diagram of another method for transmitting a reference signal provided by the present disclosure. In the third embodiment, when the network device needs to perform actual scheduling on the terminal, any CSI for time-frequency tracking may be used. - The RS is configured to be used as a pilot resource for beam management by the terminal or other terminal.
如图7所示,引用实施例一中的步骤S201-S204,或者,引用实施例二中的步骤S301-S304,在此基础上,该方法还包括:As shown in FIG. 7, the steps S201-S204 in the first embodiment are referred to, or the steps S301-S304 in the second embodiment are referenced. On the basis of the method, the method further includes:
S501、网络设备向终端发送第三指示信息,该第三指示信息用于指示第三终端根据至少两个CSI-RS中的任一CSI-RS进行波束管理。相应的,对端第三终端接收第三指示信息。S501. The network device sends third indication information to the terminal, where the third indication information is used to instruct the third terminal to perform beam management according to any one of the at least two CSI-RSs. Correspondingly, the third terminal receives the third indication information.
S502、第三终端根据第三指示信息以及至少两个CSI-RS中的任一CSI-RS进行波束管理。S502. The third terminal performs beam management according to the third indication information and any one of the at least two CSI-RSs.
其中,波束管理包括波束校准和波束追踪。Among them, beam management includes beam calibration and beam tracking.
在一种示例中,利用CSI-RS进行波束管理可以包括:终端在接收到用于时频跟踪的至少两个CSI-RS后,可以观测至少两个CSI-RS中的任一CSI-RS对应波束上的信号强度,以进行波束校准和/或波束追踪。应注意,本实施例提及的波束管理技术为现有技术,因此,本公开对于波束管理的具体实现并不做限定。In an example, performing beam management by using the CSI-RS may include: after receiving the at least two CSI-RSs for time-frequency tracking, the terminal may observe any CSI-RS corresponding to at least two CSI-RSs. Signal strength on the beam for beam calibration and/or beam tracking. It should be noted that the beam management technology mentioned in this embodiment is prior art, and therefore, the present disclosure does not limit the specific implementation of beam management.
需要说明的是,上述的步骤S202和步骤S501可以发送,示例的,可以发送一信令,该信令中即携带第一指示信息,还携带第三指示信息,也可以分别发送,本公开并不限定其执行的先后顺序。It should be noted that the foregoing step S202 and step S501 may be sent. For example, a signaling may be sent, where the first indication information is carried in the signaling, and the third indication information is also carried, and may also be separately sent. The order of execution is not limited.
实施例五:Embodiment 5:
图8示出了本公开提供的另一种传输参考信号的方法的流程示意图,在本实施例三中,当网络设备需要对终端进行实际调度时,可以将用于时频跟 踪的任一CSI-RS配置给本终端或其他终端作为信道状态信息获取的导频资源。FIG. 8 is a schematic flowchart diagram of another method for transmitting a reference signal according to the present disclosure. In the third embodiment, when the network device needs to perform actual scheduling on the terminal, any CSI for time-frequency tracking may be used. - The RS is configured as a pilot resource obtained by the terminal or other terminal as channel state information.
如图8所示,引用实施例一中的步骤S201-S204,或者,引用实施例二中的步骤S301-S304,在此基础上,该方法还包括:As shown in FIG. 8, the steps S201-S204 in the first embodiment are referred to, or the steps S301-S304 in the second embodiment are referenced. On the basis of the method, the method further includes:
S601、网络设备向终端发送第四指示信息,第四指示信息用于指示第四终端根据至少两个CSI-RS中的任一CSI-RS获取信道状态信息。相应的,对端第四终端接收第四指示信息。S601. The network device sends fourth indication information to the terminal, where the fourth indication information is used to indicate that the fourth terminal acquires channel state information according to any one of the at least two CSI-RSs. Correspondingly, the fourth terminal of the opposite end receives the fourth indication information.
S602、第四终端根据第四指示信息以及至少两个CSI-RS中的任一CSI-RS获取信道状态信息。S602. The fourth terminal acquires channel state information according to the fourth indication information and any CSI-RS of the at least two CSI-RSs.
其中,信道状态信息为能够反映信道状态的信息,例如:预编码矩阵指示(Precoding Matrix Indicator,PMI)、秩指示(Rank Indication,RI)、信道质量指示(Channel Quality Indicator,CQI)等,其中,CQI用来反映物理下行共享信道(Physical Downlink Shared Channel,PDSCH)的信道质量,RI用来指示PDSCH的有效的数据层数,PMI用来指示码本集合的index。The channel state information is information that can reflect the channel state, such as a Precoding Matrix Indicator (PMI), a Rank Indication (RI), a Channel Quality Indicator (CQI), and the like. The CQI is used to indicate the channel quality of the Physical Downlink Shared Channel (PDSCH), the RI is used to indicate the effective data layer of the PDSCH, and the PMI is used to indicate the index of the codebook set.
在一种示例中,利用CSI-RS获取信道状态信息可以包括:终端在接收到用于时频跟踪的至少两个CSI-RS后,可以观测至少两个CSI-RS中的任一CSI-RS对应波束上的信号强度,以获取信道状态信息。In an example, acquiring the channel state information by using the CSI-RS may include: after receiving the at least two CSI-RSs for time-frequency tracking, the terminal may observe any CSI-RS of the at least two CSI-RSs. Corresponding to the signal strength on the beam to obtain channel state information.
需要说明的是,上述的步骤S202和步骤S601可以发送,示例的,可以发送一信令,该信令中即携带第一指示信息,还携带第四指示信息,也可以分别发送,本公开并不限定其执行的先后顺序。It should be noted that the foregoing step S202 and step S601 may be sent. For example, a signaling may be sent, where the first indication information is carried in the signaling, and the fourth indication information is also carried, and may also be separately sent. The order of execution is not limited.
应注意,本实施例提及的信道状态信息获取技术为现有技术,因此,本公开对于信道状态信息获取的具体实现并不做限定。It should be noted that the channel state information acquisition technology mentioned in this embodiment is a prior art. Therefore, the specific implementation of the channel state information acquisition is not limited in the present disclosure.
需要说明的是,本公开在实现上述实施例一或实施例二后,实施例一或实施例二可以与后续的实施例三至实施例五进行任意组合,即利用用于时频跟踪的CSI-RS还可以实现例如速率匹配、波束管理以及信道状态信息获取等用途中的至少一种,这里不做限定。应注意的是,虽然本公开仅提供了三种用途,但只要本公开提供的用于时频跟踪的CSI-RS可以实现的功能都属于本公开保护的范围。It should be noted that after the implementation of the foregoing Embodiment 1 or Embodiment 2, Embodiment 1 or Embodiment 2 may be combined with any subsequent Embodiment 3 to Embodiment 5, that is, using CSI for time-frequency tracking. The RS can also implement at least one of the applications such as rate matching, beam management, and channel state information acquisition, which are not limited herein. It should be noted that although the present disclosure provides only three uses, functions that can be implemented by the CSI-RS for time-frequency tracking provided by the present disclosure are all within the scope of the present disclosure.
需要说明的是,本公开中的第一终端、第二终端、第三终端、第四终端 可以为同一终端,也可以为不同终端,本公开对此不作限定。应注意,实施例一与实施例二中的第一终端也可以更换为其他终端,这里不做限定。It should be noted that the first terminal, the second terminal, the third terminal, and the fourth terminal in the disclosure may be the same terminal or different terminals, which is not limited in this disclosure. It should be noted that the first terminal in the first embodiment and the second embodiment may also be replaced with other terminals, which is not limited herein.
本公开并不对网络设备以及终端执行的上述步骤的先后顺序进行限定,上文中个步骤的执行顺序应以其功能和内在逻辑确定,即上述步骤的序号的大小不应对本公开实施例的实施过程构成任何限定。The present disclosure does not limit the sequence of the above steps performed by the network device and the terminal. The order of execution of the above steps should be determined by its function and internal logic, that is, the size of the sequence of the above steps should not be implemented in the embodiment of the present disclosure. Form any limit.
上述主要从网络设备与终端之间交互的角度对本公开实施例提供的方案进行了介绍。可以理解的是,上述的各个网络设备或终端为了实现上述功能,其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到,结合本文中所公开的实施例描述的各示例的算法步骤,本公开能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本公开的范围。The solution provided by the embodiment of the present disclosure is mainly introduced from the perspective of interaction between the network device and the terminal. It can be understood that, in order to implement the above functions, each of the foregoing network devices or terminals includes a hardware structure and/or a software module corresponding to each function. Those skilled in the art will readily appreciate that the present disclosure can be implemented in a combination of hardware or hardware and computer software in combination with the algorithm steps of the various examples described in the embodiments disclosed herein. Whether a function is implemented in hardware or computer software to drive hardware depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present disclosure.
本公开实施例可以根据上述方法示例对网络设备、终端进行功能模块的划分,例如,可以对应各个功能划分各个功能模块,也可以将两个或两个以上的功能集成在一个处理模块中。上述集成的模块既可以采用硬件的形式实现,也可以采用软件功能模块的形式实现。需要说明的是,本公开实施例中对模块的划分是示意性的,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式。The embodiment of the present disclosure may divide the function module into the network device and the terminal according to the foregoing method example. For example, each function module may be divided according to each function, or two or more functions may be integrated into one processing module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of the modules in the embodiments of the present disclosure is schematic, and only one logical function is divided, and the actual implementation may have another division manner.
在采用对应各个功能划分各个功能模块的情况下,图9示出了本公开提供的网络设备的一种可能的结构示意图,如图9所示,该网络设备,可以包括:确定单元701、发送单元702,其中:FIG. 9 is a schematic diagram of a possible configuration of a network device provided by the present disclosure. As shown in FIG. 9, the network device may include: determining unit 701, sending Unit 702, wherein:
确定单元701,用于支持网络设备执行图2所示S201、S301。The determining unit 701 is configured to support the network device to execute S201 and S301 shown in FIG. 2 .
发送单元702,用于支持网络设备执行图2中的S202、S302,图6中的S401,图7中的S501,图8中的步骤S601。The sending unit 702 is configured to support the network device to perform S202, S302 in FIG. 2, S401 in FIG. 6, S501 in FIG. 7, and step S601 in FIG.
如图9所示,该网络设备还包括选择单元703,选择单元703,用于支持网络设备实现上文所述的按照预定规则选择所需的导频信号的选择过程。As shown in FIG. 9, the network device further includes a selecting unit 703 for supporting the network device to implement the selection process of selecting the required pilot signal according to a predetermined rule as described above.
需要说明的是,上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述,在此不再赘述。It should be noted that all the related content of the steps involved in the foregoing method embodiments may be referred to the functional descriptions of the corresponding functional modules, and details are not described herein again.
在采用集成的单元下,本公开实施例还提供了一种网络设备,例如基站,图10示出了一种简化基站结构示意图。基站包括801部分以及802部分。801部分主要用于射频信号的收发以及射频信号与基带信号的转换;802部分主要用于基带处理,对基站进行控制等。801部分通常可以称为收发单元、收发机、收发电路、或者收发器等。802部分通常是基站的控制中心,通常可以称为处理单元,用于控制基站执行上文中关于网络设备所执行的步骤。具体可参见上述相关部分的描述。Under the integrated unit, the embodiment of the present disclosure further provides a network device, such as a base station, and FIG. 10 shows a schematic diagram of a simplified base station structure. The base station includes a 801 part and an 802 part. The 801 part is mainly used for the transmission and reception of radio frequency signals and the conversion of radio frequency signals and baseband signals; the 802 part is mainly used for baseband processing and control of base stations. Section 801 can be generally referred to as a transceiver unit, a transceiver, a transceiver circuit, or a transceiver. The 802 portion is typically the control center of the base station and may generally be referred to as a processing unit for controlling the base station to perform the steps performed above with respect to the network device. For details, please refer to the description of the relevant part above.
801部分的收发单元,也可以称为收发机,或收发器等,其包括天线和射频单元,其中射频单元主要用于进行射频处理。可选的,可以将801部分中用于实现接收功能的器件视为接收单元,将用于实现发送功能的器件视为发送单元,即801部分包括接收单元和发送单元。接收单元也可以称为接收机、接收器、或接收电路等,发送单元可以称为发射机、发射器或者发射电路等。The transceiver unit of the 801 part, which may also be called a transceiver, or a transceiver, etc., includes an antenna and a radio frequency unit, wherein the radio frequency unit is mainly used for radio frequency processing. Alternatively, the device for implementing the receiving function in the 801 part may be regarded as a receiving unit, and the device for implementing the transmitting function may be regarded as a transmitting unit, that is, the 801 portion includes a receiving unit and a transmitting unit. The receiving unit may also be referred to as a receiver, a receiver, or a receiving circuit, etc., and the transmitting unit may be referred to as a transmitter, a transmitter, or a transmitting circuit or the like.
802部分可以包括一个或多个单板,每个单板可以包括一个或多个处理器和一个或多个存储器,处理器用于读取和执行存储器中的程序以实现基带处理功能以及对基站的控制。若存在多个单板,各个单板之间可以互联以增加处理能力。作为一中可选的实施方式,也可以是多个单板共用一个或多个处理器,或者是多个单板共用一个或多个存储器,或者是多个单板同时共用一个或多个处理器。其中,存储器和处理器可以是集成在一起的,也可以是独立设置的。在一些实施例中,801部分和802部分可以是集成在一起的,也可以是独立设置的。另外,802部分中的全部功能可以集成在一个芯片中实现,也可以部分功能集成在一个芯片中实现另外一部分功能集成在其他一个或多个芯片中实现,本公开对此不进行限定。The 802 portion may include one or more boards, each of which may include one or more processors and one or more memories for reading and executing programs in the memory to implement baseband processing functions and for base stations control. If multiple boards exist, the boards can be interconnected to increase processing power. As an optional implementation manner, multiple boards share one or more processors, or multiple boards share one or more memories, or multiple boards share one or more processes at the same time. Device. The memory and the processor may be integrated or independently. In some embodiments, the 801 portion and the 802 portion may be integrated or may be independently arranged. In addition, all the functions in the 802 part may be implemented in one chip, or may be partially integrated in one chip to realize another part of the function integration in another one or more chips, which is not limited in the disclosure.
例如,在一种实现方式中,对应于上文提供的用于传输参考信号的方法,处理单元用于执行图2所示S201、S203中网络设备执行的步骤,和/或本公开中的其他步骤。收发单元用于执行图2中的S202、S204中网络设备执行的步骤,和/或本公开中的其他步骤。For example, in one implementation, corresponding to the method for transmitting a reference signal provided above, the processing unit is configured to perform the steps performed by the network device in S201, S203 shown in FIG. 2, and/or other in the present disclosure. step. The transceiver unit is configured to perform the steps performed by the network device in S202, S204 in FIG. 2, and/or other steps in the disclosure.
进一步的,收发单元用于执行图6中的S401中网络设备执行的步骤,和/或本公开中的其他步骤。Further, the transceiver unit is configured to perform the steps performed by the network device in S401 in FIG. 6, and/or other steps in the disclosure.
进一步的,收发单元用于执行图7中的S501中网络设备执行的步骤,和/或本公开中的其他步骤。Further, the transceiver unit is configured to perform the steps performed by the network device in S501 in FIG. 7, and/or other steps in the disclosure.
进一步的,收发单元用于执行图8中的S601中网络设备执行的步骤,和/或本公开中的其他步骤。Further, the transceiver unit is configured to perform the steps performed by the network device in S601 in FIG. 8, and/or other steps in the disclosure.
例如,在一种实现方式中,对应于上文提供的用于传输参考信号的方法,处理单元用于执行图5中的S301中的网络设备执行的步骤,和/或本公开中的其他步骤。收发单元用于执行图5中的S302中网络设备执行的步骤,和/或本公开中的其他步骤。For example, in one implementation, corresponding to the method for transmitting a reference signal provided above, the processing unit is configured to perform the steps performed by the network device in S301 of FIG. 5, and/or other steps in the disclosure. . The transceiver unit is configured to perform the steps performed by the network device in S302 of FIG. 5, and/or other steps in the disclosure.
进一步的,收发单元用于执行图6中的S401中网络设备执行的步骤,和/或本公开中的其他步骤。Further, the transceiver unit is configured to perform the steps performed by the network device in S401 in FIG. 6, and/or other steps in the disclosure.
进一步的,收发单元用于执行图7中的S501中网络设备执行的步骤,和/或本公开中的其他步骤。Further, the transceiver unit is configured to perform the steps performed by the network device in S501 in FIG. 7, and/or other steps in the disclosure.
进一步的,收发单元用于执行图8中的S601中网络设备执行的步骤,和/或本公开中的其他步骤。Further, the transceiver unit is configured to perform the steps performed by the network device in S601 in FIG. 8, and/or other steps in the disclosure.
在采用对应各个功能划分各个功能模块的情况下,图11示出了本公开提供的终端的一种可能的结构示意图,如图11所示,该终端,可以包括:接收单元901、确定单元902,其中:FIG. 11 is a schematic diagram of a possible structure of a terminal provided by the present disclosure. As shown in FIG. 11 , the terminal may include: a receiving unit 901 and a determining unit 902. ,among them:
接收单元901,用于支持终端接收网络侧发送的指示信息、参考信号以及数据,及用于支持终端执行图5中的S304。The receiving unit 901 is configured to support the terminal to receive the indication information, the reference signal, and the data sent by the network side, and to support the terminal to execute S304 in FIG. 5.
确定单元902,用于支持终端执行图2中的S204,图5所示S303。The determining unit 902 is configured to support the terminal to execute S204 in FIG. 2, and S303 in FIG. 5.
进一步的,该终端还包括:时频跟踪单元903、速率匹配单元904、波束管理单元905、信道检测单元906,其中:Further, the terminal further includes: a time-frequency tracking unit 903, a rate matching unit 904, a beam management unit 905, and a channel detecting unit 906, where:
时频跟踪单元903,用于支持终端执行图5所示S305。The time-frequency tracking unit 903 is configured to support the terminal to execute S305 shown in FIG. 5.
速率匹配单元904,用于支持终端执行图6所示S402。The rate matching unit 904 is configured to support the terminal to execute S402 shown in FIG. 6.
波束管理单元905,用于支持终端执行图7所示S502。The beam management unit 905 is configured to support the terminal to execute S502 shown in FIG. 7.
信道检测单元906,用于支持终端执行图8所示S602。The channel detecting unit 906 is configured to support the terminal to execute S602 shown in FIG. 8.
需要说明的是,上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述,在此不再赘述。It should be noted that all the related content of the steps involved in the foregoing method embodiments may be referred to the functional descriptions of the corresponding functional modules, and details are not described herein again.
在采用集成的单元下,本公开实施例还提供了一种终端。图12示出了一 种简化的终端结构示意图。便于理解和图示方便,图12中,终端以手机作为例子。如图12所示,终端包括处理器、存储器、射频电路、天线以及输入输出装置。处理器主要用于对通信协议以及通信数据进行处理,以及对终端进行控制,执行软件程序,处理软件程序的数据等。存储器主要用于存储软件程序和数据。射频电路主要用于基带信号与射频信号的转换以及对射频信号的处理。天线主要用于收发电磁波形式的射频信号。输入输出装置,例如触摸屏、显示屏,键盘等主要用于接收用户输入的数据以及对用户输出数据。需要说明的是,有些种类的终端可以不具有输入输出装置。其中,存储器和处理器可以是集成在一起的,也可以是独立设置的。The embodiment of the present disclosure further provides a terminal under the adopted integrated unit. Figure 12 shows a simplified schematic diagram of the terminal structure. It is convenient for understanding and illustration. In Fig. 12, the terminal uses a mobile phone as an example. As shown in FIG. 12, the terminal includes a processor, a memory, a radio frequency circuit, an antenna, and an input and output device. The processor is mainly used for processing communication protocols and communication data, and controlling terminals, executing software programs, processing data of software programs, and the like. Memory is primarily used to store software programs and data. The RF circuit is mainly used for the conversion of the baseband signal and the RF signal and the processing of the RF signal. The antenna is mainly used to transmit and receive RF signals in the form of electromagnetic waves. 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. It should be noted that some types of terminals may not have input and output devices. The memory and the processor may be integrated or independently.
当需要发送数据时,处理器对待发送的数据进行基带处理后,输出基带信号至射频电路,射频电路将基带信号进行射频处理后将射频信号通过天线以电磁波的形式向外发送。当有数据发送到终端时,射频电路通过天线接收到射频信号,将射频信号转换为基带信号,并将基带信号输出至处理器,处理器将基带信号转换为数据并对该数据进行处理。为便于说明,图12中仅示出了一个存储器和处理器。在实际的终端产品中,可以存在一个或多个处理器和一个或多个存储器。存储器也可以称为存储介质或者存储设备等。存储器可以是独立于处理器设置,也可以是与处理器集成在一起,本公开实施例对此不做限制。When the data needs to be sent, the processor performs baseband processing on the data to be sent, and 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. When data is sent to the terminal, 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. For ease of illustration, only one memory and processor are shown in FIG. In an actual end product, there may be one or more processors and one or more memories. The memory may also be referred to as a storage medium or a storage device or the like. The memory may be independent of the processor settings, or may be integrated with the processor, and the embodiment of the present disclosure does not limit this.
在本公开实施例中,可以将具有收发功能的天线和射频电路视为终端的收发单元,将具有处理功能的处理器视为终端的处理单元。如图12所示,终端包括收发单元1001和处理单元1002。收发单元也可以称为收发器(包括发射机和/或接收器)、收发机、收发装置等。处理单元也可以称为处理器,处理单板,处理模块、处理装置等。可选的,可以将收发单元1001中用于实现接收功能的器件视为接收单元,将收发单元1001中用于实现发送功能的器件视为发送单元,即收发单元1001包括接收单元和发送单元。收发单元有时也可以称为收发机、收发器、或收发电路等。接收单元有时也可以称为接收机、接收器、或接收电路等。发送单元有时也可以称为发射机、发射器或者发射电路等。在一些实施例中,收发单元1001和处理单元1002可以是集成在一起的,也可以是独立设置的。另外,处理单元1002中的全部功能可以集 成在一个芯片中实现,也可以部分功能集成在一个芯片中实现另外一部分功能集成在其他一个或多个芯片中实现,本公开对此不进行限定。In the embodiment of the present disclosure, the antenna and the radio frequency circuit having the transceiving function can be regarded as the transceiving unit of the terminal, and the processor having the processing function is regarded as the processing unit of the terminal. As shown in FIG. 12, the terminal includes a transceiver unit 1001 and a processing unit 1002. The transceiver unit may also be referred to as a transceiver (including a transmitter and/or receiver), a transceiver, a transceiver, and the like. The processing unit may also be referred to as a processor, a processing board, a processing module, a processing device, and the like. Optionally, the device for implementing the receiving function in the transceiver unit 1001 can be regarded as a receiving unit, and the device for implementing the sending function in the transceiver unit 1001 is regarded as a sending unit, that is, the transceiver unit 1001 includes a receiving unit and a sending unit. The transceiver unit may also be referred to as a transceiver, a transceiver, or a transceiver circuit. The receiving unit may also be referred to as a receiver, a receiver, or a receiving circuit or the like. The transmitting unit may also be referred to as a transmitter, a transmitter, or a transmitting circuit, and the like. In some embodiments, the transceiver unit 1001 and the processing unit 1002 may be integrated or independently. In addition, all the functions in the processing unit 1002 may be implemented in one chip, or may be partially integrated into one chip to implement another part of the function integration in another one or more chips, which is not limited in the disclosure.
例如,在一种实现方式中,基于上文提供的用于传输参考信号的方法,收发单元1001用于执行终端执行信息收发的步骤,和/或本公开中的其他步骤。处理单元1002用于执行图2中的S204、S205,和/或本公开中的其他步骤。For example, in one implementation, based on the method for transmitting a reference signal provided above, the transceiving unit 1001 is configured to perform the steps of the terminal performing information transceiving, and/or other steps in the present disclosure. Processing unit 1002 is operative to perform S204, S205, and/or other steps in the present disclosure in FIG.
进一步的,处理单元1002用于执行图6中的S402,和/或本公开中的其他步骤。Further, the processing unit 1002 is configured to perform S402 in FIG. 6, and/or other steps in the present disclosure.
进一步的,处理单元1002用于执行图7中的S502,和/或本公开中的其他步骤。Further, the processing unit 1002 is configured to perform S502 in FIG. 7, and/or other steps in the present disclosure.
进一步的,处理单元1002用于执行图8中的S602,和/或本公开中的其他步骤。Further, the processing unit 1002 is configured to perform S602 in FIG. 8, and/or other steps in the present disclosure.
例如,在一种实现方式中,基于上文提供的用于传输参考信号的方法,收发单元1001用于支持终端执行图5中的S304,和/或本公开中的其他步骤。处理单元1002用于执行图5中的S303,和/或本公开中的其他步骤。For example, in one implementation, based on the method for transmitting a reference signal provided above, the transceiving unit 1001 is configured to support the terminal to perform S304 in FIG. 5, and/or other steps in the present disclosure. Processing unit 1002 is for performing S303 in FIG. 5, and/or other steps in the present disclosure.
进一步的,处理单元1002用于执行图6中的S402,和/或本公开中的其他步骤。Further, the processing unit 1002 is configured to perform S402 in FIG. 6, and/or other steps in the present disclosure.
进一步的,处理单元1002用于执行图7中的S502,和/或本公开中的其他步骤。Further, the processing unit 1002 is configured to perform S502 in FIG. 7, and/or other steps in the present disclosure.
进一步的,处理单元1002用于执行图8中的S602,和/或本公开中的其他步骤。Further, the processing unit 1002 is configured to perform S602 in FIG. 8, and/or other steps in the present disclosure.
上述提供的任一种通信装置中相关内容的解释及有益效果均可参考上文提供的对应的方法实施例,此处不再赘述。For the explanation and beneficial effects of the related content in any of the above-mentioned communication devices, reference may be made to the corresponding method embodiments provided above, and details are not described herein again.
上文提及的处理器,可以是一个处理器,也可以是多个处理元件的统称。例如,处理器是一个中央处理器(central processing unit,CPU),也可以是特定集成电路(application specific integrated circuit,ASIC),或者是被配置成实施本公开实施例的一个或多个集成电路,例如:一个或多个微处理器(digital signal processor,DSP),或,一个或者多个现场可编程门阵列(field programmable gate array,FPGA)。其中,处理器可以通过运行或执行存储在 存储器内的软件程序,以及调用存储在存储器内的数据,执行网络功能节点的各种功能。The processor mentioned above may be a processor or a general term for multiple processing elements. For example, the processor is a central processing unit (CPU), may be an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement embodiments of the present disclosure. For example: one or more digital signal processors (DSPs), or one or more field programmable gate arrays (FPGAs). The processor can perform various functions of the network function node by running or executing a software program stored in the memory and calling data stored in the memory.
上文中的存储器可以是只读存储器(read-only memory,ROM)或可存储静态信息和指令的其他类型的静态存储设备,随机存取存储器(random access memory,RAM)或者可存储信息和指令的其他类型的动态存储设备,也可以是电可擦可编程只读存储器(electrically erasable programmable read-only memory,EEPROM)、只读光盘(compact disc read-only memory,CD-ROM)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质,但不限于此。存储器可以独立存在,也可以通过通信总线与处理器相连接。存储器也可以和处理器集成在一起。其中,所述存储器用于存储执行本公开实施例提供的方案的软件程序,并由处理器来控制执行。The above memory may be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM) or a device that can store information and instructions. Other types of dynamic storage devices may also be electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical disc storage. Optical disc storage (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or capable of carrying or storing desired program code in the form of instructions or data structures and capable of Any other medium accessed by a computer, but is not limited thereto. The memory can exist independently or be connected to the processor via a communication bus. The memory can also be integrated with the processor. The memory is used to store a software program that executes the solution provided by the embodiment of the present disclosure, and is controlled by a processor.
本领域内的技术人员应明白,本公开实施例可提供为方法、系统、或计算机程序产品。因此,本公开实施例可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且,本公开实施例可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。Those skilled in the art will appreciate that embodiments of the present disclosure can be provided as a method, system, or computer program product. Thus, embodiments of the present disclosure can take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware aspects. Moreover, embodiments of the present disclosure may take the form of a computer program product embodied on one or more computer usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
本公开实施例是参照根据本公开实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器,使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。Embodiments of the present disclosure are described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the present disclosure. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中,使得存储在该计算机可读存储器 中的指令产生包括指令装置的制造品,该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上,使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理,从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.
显然,本领域的技术人员可以对本公开实施例进行各种改动和变型而不脱离本公开的精神和范围。这样,倘若本公开实施例的这些修改和变型属于本公开权利要求及其等同技术的范围之内,则本公开也意图包含这些改动和变型在内。It will be apparent to those skilled in the art that various modifications and changes can be made in the embodiments of the present disclosure without departing from the spirit and scope of the disclosure. Thus, the present disclosure is intended to cover such modifications and variations as the modifications and variations of the embodiments of the present disclosure.
Claims (46)
- 一种用于传输参考信号的方法,包括:A method for transmitting a reference signal, comprising:确定第一指示信息,所述第一指示信息用于向第一终端指示至少两个信道状态信息参考信号CSI-RS的时频资源,所述至少两个CSI-RS用于时频跟踪;Determining first indication information, where the first indication information is used to indicate, to the first terminal, time-frequency resources of at least two channel state information reference signals CSI-RS, where the at least two CSI-RSs are used for time-frequency tracking;向所述第一终端发送所述第一指示信息。Sending the first indication information to the first terminal.
- 如权利要求1所述的方法,其中,The method of claim 1 wherein所述第一指示信息用于向所述第一终端指示第一CSI-RS资源集合中的至少两个CSI-RS的时频资源;The first indication information is used to indicate to the first terminal, a time-frequency resource of at least two CSI-RSs in the first CSI-RS resource set;或者,所述第一指示信息用于向所述第一终端指示第二CSI-RS资源集合中的至少一个CSI-RS组的CSI-RS的时频资源;其中,每个CSI-RS组用于时频跟踪,所述每个CSI-RS组包括至少两个CSI-RS。Or the first indication information is used to indicate, to the first terminal, a time-frequency resource of a CSI-RS of at least one CSI-RS group in the second CSI-RS resource set; where, each CSI-RS group is used by For time-frequency tracking, each CSI-RS group includes at least two CSI-RSs.
- 如权利要求1所述的方法,其中,所述方法还包括:The method of claim 1 wherein the method further comprises:选择至少两个CSI-RS。Select at least two CSI-RSs.
- 如权利要求1-3任一项所述的方法,其中,所述方法还包括:The method of any of claims 1-3, wherein the method further comprises:向第二终端发送第二指示信息,所述第二指示信息用于指示所述第二终端根据所述至少两个CSI-RS进行速率匹配;Transmitting, to the second terminal, second indication information, where the second indication information is used to indicate that the second terminal performs rate matching according to the at least two CSI-RSs;和/或,and / or,向第三终端发送第三指示信息,所述第三指示信息用于指示所述第三终端根据所述至少两个CSI-RS中的任一CSI-RS进行波束管理;Sending third indication information to the third terminal, where the third indication information is used to indicate that the third terminal performs beam management according to any one of the at least two CSI-RSs;和/或,and / or,向第四终端发送第四指示信息,所述第四指示信息用于指示所述第四终端根据所述至少两个CSI-RS中的任一CSI-RS获取信道状态信息。The fourth indication information is sent to the fourth terminal, where the fourth indication information is used to indicate that the fourth terminal acquires channel state information according to any one of the at least two CSI-RSs.
- 如权利要求1-3任一项所述的方法其中,所述第一指示信息包括:所述至少两个CSI-RS对应的CSI-RS的资源配置信息。The method according to any one of claims 1-3, wherein the first indication information comprises resource configuration information of a CSI-RS corresponding to the at least two CSI-RSs.
- 如权利要求1-3任一项所述的方法其中,所述第一指示信息包括:所述至少两个CSI-RS的所占RE的图样信息。The method according to any one of claims 1-3, wherein the first indication information comprises: pattern information of the occupied REs of the at least two CSI-RSs.
- 如权利要求2所述的方法,其中,所述第一指示信息用于向所述第一 终端指示第一CSI-RS资源集合中的至少两个CSI-RS的标识,所述CSI-RS的标识用于指示所述CSI-RS的时频资源;The method according to claim 2, wherein the first indication information is used to indicate to the first terminal, an identifier of at least two CSI-RSs in a first CSI-RS resource set, where the CSI-RS Identifying a time-frequency resource used to indicate the CSI-RS;或者,所述第一指示信息用于向所述第一终端指示第二CSI-RS资源集合中的至少一个CSI-RS组的组号;其中,所述CSI-RS组的组号用于指示所述CSI-RS组的CSI-RS的时频资源。Or the first indication information is used to indicate, to the first terminal, a group number of at least one CSI-RS group in the second CSI-RS resource set; where the group number of the CSI-RS group is used to indicate Time-frequency resources of the CSI-RS of the CSI-RS group.
- 一种用于传输参考信号的方法,包括:A method for transmitting a reference signal, comprising:接收第一指示信息,所述第一指示信息用于向第一终端指示至少两个信道状态信息参考信号CSI-RS的时频资源,所述至少两个CSI-RS用于时频跟踪;Receiving first indication information, where the first indication information is used to indicate, to the first terminal, time-frequency resources of at least two channel state information reference signals CSI-RS, where the at least two CSI-RSs are used for time-frequency tracking;根据所述第一指示信息确定所述至少两个CSI-RS。Determining the at least two CSI-RSs according to the first indication information.
- 如权利要求8所述的方法,其中,所述方法还包括:The method of claim 8 wherein the method further comprises:确定第一CSI-RS资源集合;其中,所述第一指示信息用于向所述第一终端指示所述第一CSI-RS资源集合中的至少两个CSI-RS的时频资源;Determining a first CSI-RS resource set, where the first indication information is used to indicate, to the first terminal, a time-frequency resource of at least two CSI-RSs in the first CSI-RS resource set;或者,or,确定第二CSI-RS资源集合;其中,所述第一指示信息用于向所述第一终端指示所述第二CSI-RS资源集合中的至少一个CSI-RS组的CSI-RS的时频资源;其中,每个CSI-RS组用于时频跟踪,所述每个CSI-RS组包括至少两个CSI-RS。Determining a second CSI-RS resource set, where the first indication information is used to indicate, to the first terminal, a time frequency of a CSI-RS of the at least one CSI-RS group in the second CSI-RS resource set Resources; wherein each CSI-RS group is used for time-frequency tracking, and each CSI-RS group includes at least two CSI-RSs.
- 如权利要求8所述的方法,其中,所述方法还包括:The method of claim 8 wherein the method further comprises:根据所述至少两个CSI-RS对接收到的网络设备发送的数据进行时频跟踪。Time-frequency tracking is performed on the data sent by the received network device according to the at least two CSI-RSs.
- 如权利要求8-10任一项所述的方法,其中,所述方法还包括:The method of any of claims 8-10, wherein the method further comprises:接收第二指示信息,所述第二指示信息用于指示所述第一终端根据所述至少两个CSI-RS进行速率匹配;根据所述第二指示信息以及所述至少两个CSI-RS进行速率匹配;And receiving the second indication information, where the second indication information is used to indicate that the first terminal performs rate matching according to the at least two CSI-RSs; according to the second indication information and the at least two CSI-RSs Rate matching和/或,and / or,接收第三指示信息,所述第三指示信息用于指示所述第一终端根据所述至少两个CSI-RS中的任一CSI-RS进行波束管理;根据所述第三指示信息以及所述至少两个CSI-RS中的任一CSI-RS进行波束管理;And receiving the third indication information, where the third indication information is used to indicate that the first terminal performs beam management according to any one of the at least two CSI-RSs; according to the third indication information and the Performing beam management on any of the at least two CSI-RSs;和/或,and / or,接收第四指示信息,所述第四指示信息用于指示所述第一终端根据所述至少两个CSI-RS中的任一CSI-RS获取信道状态信息;根据所述第四指示信息以及所述至少两个CSI-RS中的任一CSI-RS获取信道状态信息。Receiving fourth indication information, where the fourth indication information is used to indicate that the first terminal acquires channel state information according to any one of the at least two CSI-RSs; according to the fourth indication information and the Any of the at least two CSI-RSs acquires channel state information.
- 如权利要求8-10任一项所述的方法,其中,所述第一指示信息包括:所述至少两个CSI-RS对应的CSI-RS的资源配置信息。The method according to any one of claims 8 to 10, wherein the first indication information comprises: resource configuration information of a CSI-RS corresponding to the at least two CSI-RSs.
- 如权利要求8-10任一项所述的方法,其中,所述第一指示信息包括:所述至少两个CSI-RS的所占RE的图样信息。The method according to any one of claims 8 to 10, wherein the first indication information comprises: pattern information of the occupied REs of the at least two CSI-RSs.
- 如权利要求9所述的方法,其中,所述第一指示信息用于向所述第一终端指示第一CSI-RS资源集合中的至少两个CSI-RS的标识,所述CSI-RS的标识用于指示所述CSI-RS的时频资源;The method according to claim 9, wherein the first indication information is used to indicate to the first terminal, an identifier of at least two CSI-RSs in a first CSI-RS resource set, where the CSI-RS Identifying a time-frequency resource used to indicate the CSI-RS;或者,所述第一指示信息用于向所述第一终端指示第二CSI-RS资源集合中的至少一个CSI-RS组的组号;其中,所述CSI-RS组的组号用于指示所述CSI-RS组的CSI-RS的时频资源。Or the first indication information is used to indicate, to the first terminal, a group number of at least one CSI-RS group in the second CSI-RS resource set; where the group number of the CSI-RS group is used to indicate Time-frequency resources of the CSI-RS of the CSI-RS group.
- 一种网络设备,包括:A network device, including:确定单元,用于确定第一指示信息,所述第一指示信息用于向第一终端指示至少两个信道状态信息参考信号CSI-RS的时频资源,所述至少两个CSI-RS用于时频跟踪;a determining unit, configured to determine first indication information, where the first indication information is used to indicate, to the first terminal, time-frequency resources of at least two channel state information reference signals CSI-RS, where the at least two CSI-RSs are used Time-frequency tracking发送单元,用于向所述第一终端发送所述第一指示信息。And a sending unit, configured to send the first indication information to the first terminal.
- 如权利要求15所述的网络设备,其中,The network device according to claim 15, wherein所述第一指示信息用于向所述第一终端指示第一CSI-RS资源集合中的至少两个CSI-RS的时频资源;The first indication information is used to indicate to the first terminal, a time-frequency resource of at least two CSI-RSs in the first CSI-RS resource set;或者,所述第一指示信息用于向所述第一终端指示第二CSI-RS资源集合中的至少一个CSI-RS组的CSI-RS的时频资源;其中,每个CSI-RS组用于时频跟踪,所述每个CSI-RS组包括至少两个CSI-RS。Or the first indication information is used to indicate, to the first terminal, a time-frequency resource of a CSI-RS of at least one CSI-RS group in the second CSI-RS resource set; where, each CSI-RS group is used by For time-frequency tracking, each CSI-RS group includes at least two CSI-RSs.
- 如权利要求15所述的网络设备,其中,所述网络设备还包括:The network device of claim 15, wherein the network device further comprises:选择单元,用于选择至少两个CSI-RS。A selection unit for selecting at least two CSI-RSs.
- 如权利要求15-17任一项所述的网络设备,其中,A network device according to any one of claims 15-17, wherein所述发送单元,还用于:The sending unit is further configured to:向所述终端发送第二指示信息,所述第二指示信息用于指示第二终端根据所述至少两个CSI-RS进行速率匹配;Sending the second indication information to the terminal, where the second indication information is used to indicate that the second terminal performs rate matching according to the at least two CSI-RSs;和/或,and / or,向所述终端发送第三指示信息,所述第三指示信息用于指示所述第二终端根据所述至少两个CSI-RS中的任一CSI-RS进行波束管理;Sending the third indication information to the terminal, where the third indication information is used to indicate that the second terminal performs beam management according to any one of the at least two CSI-RSs;和/或,and / or,向所述终端发送第四指示信息,所述第四指示信息用于指示所述第二终端根据所述至少两个CSI-RS中的任一CSI-RS获取信道状态信息。Transmitting the fourth indication information to the terminal, where the fourth indication information is used to indicate that the second terminal acquires channel state information according to any one of the at least two CSI-RSs.
- 如权利要求15-17任一项所述的网络设备,其中,所述第一指示信息包括:所述至少两个CSI-RS对应的CSI-RS的资源配置信息。The network device according to any one of claims 15-17, wherein the first indication information comprises resource configuration information of a CSI-RS corresponding to the at least two CSI-RSs.
- 如权利要求15-17任一项所述的网络设备,其中,所述第一指示信息包括:所述至少两个CSI-RS的所占RE的图样信息。The network device according to any one of claims 15-17, wherein the first indication information comprises: pattern information of the occupied REs of the at least two CSI-RSs.
- 如权利要求16所述的网络设备,其中,所述第一指示信息用于向所述第一终端指示第一CSI-RS资源集合中的至少两个CSI-RS的标识,所述CSI-RS的标识用于指示所述CSI-RS的时频资源;The network device according to claim 16, wherein the first indication information is used to indicate, to the first terminal, an identifier of at least two CSI-RSs in a first CSI-RS resource set, the CSI-RS The identifier of the CSI-RS is used to indicate the time-frequency resource of the CSI-RS;或者,所述第一指示信息用于向所述第一终端指示第二CSI-RS资源集合中的至少一个CSI-RS组的组号;其中,所述CSI-RS组的组号用于指示所述CSI-RS组的CSI-RS的时频资源。Or the first indication information is used to indicate, to the first terminal, a group number of at least one CSI-RS group in the second CSI-RS resource set; where the group number of the CSI-RS group is used to indicate Time-frequency resources of the CSI-RS of the CSI-RS group.
- 一种第一终端,包括:A first terminal includes:接收单元,用于接收第一指示信息,所述第一指示信息用于向第一终端指示至少两个信道状态信息参考信号CSI-RS的时频资源,所述至少两个CSI-RS用于时频跟踪;a receiving unit, configured to receive first indication information, where the first indication information is used to indicate, to the first terminal, time-frequency resources of at least two channel state information reference signals CSI-RS, where the at least two CSI-RSs are used Time-frequency tracking确定单元,用于根据所述第一指示信息确定所述至少两个CSI-RS。And a determining unit, configured to determine the at least two CSI-RSs according to the first indication information.
- 如权利要求22所述的第一终端,其中,The first terminal of claim 22, wherein所述确定单元,还用于确定第一CSI-RS资源集合;其中,所述第一指示信息用于向所述第一终端指示所述第一CSI-RS资源集合中的至少两个CSI-RS的时频资源;或者,还用于确定第二CSI-RS资源集合;其中,所述第一指示信息用于向所述第一终端指示所述第二CSI-RS资源集合中的至少一个CSI-RS组的CSI-RS的时频资源;其中,每个CSI-RS组用于时频跟踪, 所述每个CSI-RS组包括至少两个CSI-RS。The determining unit is further configured to determine a first CSI-RS resource set, where the first indication information is used to indicate, to the first terminal, at least two CSIs in the first CSI-RS resource set. a time-frequency resource of the RS; or, configured to determine a second CSI-RS resource set; wherein the first indication information is used to indicate, to the first terminal, at least one of the second CSI-RS resource set Time-frequency resources of CSI-RSs of the CSI-RS group; wherein each CSI-RS group is used for time-frequency tracking, and each CSI-RS group includes at least two CSI-RSs.
- 如权利要求22所述的第一终端,其中,所述第一终端还包括:The first terminal of claim 22, wherein the first terminal further comprises:时频跟踪单元,用于根据所述至少两个CSI-RS对接收到的网络设备发送的数据进行时频跟踪。The time-frequency tracking unit is configured to perform time-frequency tracking on the data sent by the received network device according to the at least two CSI-RSs.
- 如权利要求22-24任一项所述的第一终端,其中,A first terminal according to any one of claims 22 to 24, wherein所述接收单元,还用于接收第二指示信息,所述第二指示信息用于指示所述第一终端根据所述至少两个CSI-RS进行速率匹配;The receiving unit is further configured to receive the second indication information, where the second indication information is used to indicate that the first terminal performs rate matching according to the at least two CSI-RSs;所述第一终端还包括:速率匹配单元,用于根据所述第二指示信息以及所述至少两个CSI-RS进行速率匹配;The first terminal further includes: a rate matching unit, configured to perform rate matching according to the second indication information and the at least two CSI-RSs;和/或,and / or,所述接收单元,还用于接收第三指示信息,所述第三指示信息用于指示所述第一终端根据所述至少两个CSI-RS中的任一CSI-RS进行波束管理;The receiving unit is further configured to receive third indication information, where the third indication information is used to indicate that the first terminal performs beam management according to any one of the at least two CSI-RSs;所述第一终端还包括:波束管理单元,用于根据所述第三指示信息以及所述至少两个CSI-RS中的任一CSI-RS进行波束管理;The first terminal further includes: a beam management unit, configured to perform beam management according to the third indication information and any one of the at least two CSI-RSs;和/或,and / or,所述接收单元,还用于接收第四指示信息,所述第四指示信息用于指示所述第一终端根据所述至少两个CSI-RS中的任一CSI-RS获取信道状态信息;The receiving unit is further configured to receive fourth indication information, where the fourth indication information is used to indicate that the first terminal acquires channel state information according to any one of the at least two CSI-RSs;所述第一终端还包括:信道检测单元,用于根据所述第四指示信息以及所述至少两个CSI-RS中的任一CSI-RS获取信道状态信息。The first terminal further includes: a channel detecting unit, configured to acquire channel state information according to the fourth indication information and any one of the at least two CSI-RSs.
- 如权利要求22-24任一项所述的第一终端,其中,所述第一指示信息包括:所述至少两个CSI-RS对应的CSI-RS的资源配置信息。The first terminal according to any one of claims 22 to 24, wherein the first indication information comprises: resource configuration information of a CSI-RS corresponding to the at least two CSI-RSs.
- 如权利要求22-24任一项所述的第一终端,其中,所述第一指示信息包括:所述至少两个CSI-RS的所占RE的图样信息。The first terminal according to any one of claims 22 to 24, wherein the first indication information comprises: pattern information of the occupied REs of the at least two CSI-RSs.
- 如权利要求23所述的第一终端,其中,The first terminal of claim 23, wherein所述第一指示信息用于向所述第一终端指示第一CSI-RS资源集合中的至少两个CSI-RS的标识,所述CSI-RS的标识用于指示所述CSI-RS的时频资源;The first indication information is used to indicate, to the first terminal, an identifier of at least two CSI-RSs in the first CSI-RS resource set, where the identifier of the CSI-RS is used to indicate the time of the CSI-RS Frequency resource或者,所述第一指示信息用于向所述第一终端指示第二CSI-RS资源集合中的至少一个CSI-RS组的组号;其中,所述CSI-RS组的组号用于指示所述 CSI-RS组的CSI-RS的时频资源。Or the first indication information is used to indicate, to the first terminal, a group number of at least one CSI-RS group in the second CSI-RS resource set; where the group number of the CSI-RS group is used to indicate Time-frequency resources of the CSI-RS of the CSI-RS group.
- 一种用于传输参考信号的方法,包括:A method for transmitting a reference signal, comprising:确定预先配置的第三CSI-RS资源集合中的至少两个CSI-RS的时频资源,或者,确定预先配置的第四CSI-RS资源集合中的至少一个CSI-RS组中CSI-RS的时频资源;其中,每个CSI-RS组包括至少两个CSI-RS;Determining time-frequency resources of at least two CSI-RSs in the preset third CSI-RS resource set, or determining CSI-RSs in at least one of the pre-configured fourth CSI-RS resource sets Time-frequency resources; wherein each CSI-RS group includes at least two CSI-RSs;使用所述至少两个CSI-RS的时频资源向第一终端发送CSI-RS;其中,所述CSI-RS用于时频跟踪。And transmitting, by using the time-frequency resources of the at least two CSI-RSs, a CSI-RS to the first terminal; wherein the CSI-RS is used for time-frequency tracking.
- 如权利要求29所述的方法,其中,所述确定预先配置的第三CSI-RS资源集合中的至少两个CSI-RS的时频资源包括:根据网络参数信息,确定预先配置的第三CSI-RS资源集合中的至少两个CSI-RS的时频资源;The method of claim 29, wherein the determining the time-frequency resources of the at least two CSI-RSs in the preset third CSI-RS resource set comprises: determining the pre-configured third CSI according to the network parameter information - a time-frequency resource of at least two CSI-RSs in the RS resource set;所述确定预先配置的第四CSI-RS资源集合中的至少一个CSI-RS组中CSI-RS的时频资源包括:根据网络匹配信息,确定预先配置的第四CSI-RS资源集合中的至少一个CSI-RS组中CSI-RS的时频资源;Determining the time-frequency resource of the CSI-RS in the at least one CSI-RS group in the pre-configured fourth CSI-RS resource set includes: determining, according to the network matching information, at least at least one of the pre-configured fourth CSI-RS resource sets Time-frequency resources of CSI-RS in a CSI-RS group;其中,所述参数信息包括以下信息中的至少一种:所述网络设备管理的小区的小区ID以及小区与CSI-RS的时频资源间的映射关系,所述网络设备管理的小区的小区所处区域的区域ID以及区域与CSI-RS的时频资源间的映射关系,CSI-RS资源集合所配置CSI-RS集合内CSI-RS资源数量。The parameter information includes at least one of the following: a cell ID of a cell managed by the network device, and a mapping relationship between a cell and a time-frequency resource of the CSI-RS, and a cell of the cell managed by the network device. The area ID of the area and the mapping relationship between the area and the time-frequency resource of the CSI-RS, and the number of CSI-RS resources in the CSI-RS set configured by the CSI-RS resource set.
- 如权利要求29或30所述的方法,其中,所述方法还包括:The method of claim 29 or 30, wherein the method further comprises:向第二终端发送第二指示信息,所述第二指示信息用于指示所述第二终端根据所述至少两个CSI-RS进行速率匹配;Transmitting, to the second terminal, second indication information, where the second indication information is used to indicate that the second terminal performs rate matching according to the at least two CSI-RSs;和/或,and / or,向第三终端发送第三指示信息,所述第三指示信息用于指示所述第三终端根据所述至少两个CSI-RS中的任一CSI-RS进行波束管理;Sending third indication information to the third terminal, where the third indication information is used to indicate that the third terminal performs beam management according to any one of the at least two CSI-RSs;和/或,and / or,向第四终端发送第四指示信息,所述第四指示信息用于指示所述第四终端根据所述至少两个CSI-RS中的任一CSI-RS获取信道状态信息。The fourth indication information is sent to the fourth terminal, where the fourth indication information is used to indicate that the fourth terminal acquires channel state information according to any one of the at least two CSI-RSs.
- 一种用于传输参考信号的方法,包括:A method for transmitting a reference signal, comprising:确定预先配置的第三CSI-RS资源集合中的至少两个CSI-RS的时频资源,或者,确定预先配置的第四CSI-RS资源集合中的至少一个CSI-RS组中 CSI-RS的时频资源;其中,所述每个CSI-RS组包括至少两个CSI-RS;Determining time-frequency resources of at least two CSI-RSs in the preset third CSI-RS resource set, or determining CSI-RSs in at least one of the pre-configured fourth CSI-RS resource sets a time-frequency resource; wherein each of the CSI-RS groups includes at least two CSI-RSs;使用所述至少两个CSI-RS的时频资源接收CSI-RS;其中,所述CSI-RS用于时频跟踪。The CSI-RS is received using time-frequency resources of the at least two CSI-RSs; wherein the CSI-RS is used for time-frequency tracking.
- 如权利要求32所述的方法,其中,The method of claim 32, wherein所述确定预先配置的第三CSI-RS资源集合中的至少两个CSI-RS的时频资源,包括:根据网络参数信息,确定所述第三CSI-RS资源集合中的至少两个CSI-RS的时频资源;Determining the time-frequency resource of the at least two CSI-RSs in the preset third CSI-RS resource set, including: determining, according to the network parameter information, at least two CSIs in the third CSI-RS resource set. RS time-frequency resources;所述确定预先配置的第四CSI-RS资源集合中的至少一个CSI-RS组中CSI-RS的时频资源,包括:根据网络参数信息,确定所述第三CSI-RS资源集合中的至少两个CSI-RS的时频资源;Determining the time-frequency resource of the CSI-RS in the at least one CSI-RS group in the pre-configured fourth CSI-RS resource set, including: determining, according to the network parameter information, at least the third CSI-RS resource set Time-frequency resources of two CSI-RSs;其中,所述网络参数信息包括以下信息中的至少一种:所述第一终端的服务小区ID以及小区与CSI-RS的时频资源间的映射关系,所述终端的服务器小区所处区域的区域ID以及区域与CSI-RS的时频资源间的映射关系,CSI-RS资源集合所配置CSI-RS集合内CSI-RS资源数量。The network parameter information includes at least one of the following information: a mapping relationship between the serving cell ID of the first terminal and a time-frequency resource of the CSI-RS, where the server cell of the terminal is located The mapping between the area ID and the time-frequency resource of the area and the CSI-RS, and the number of CSI-RS resources in the CSI-RS set configured by the CSI-RS resource set.
- 如权利要求32所述的方法,其中,所述方法还包括:The method of claim 32, wherein the method further comprises:根据所述至少两个CSI-RS对接收到的网络设备发送的数据进行时频跟踪。Time-frequency tracking is performed on the data sent by the received network device according to the at least two CSI-RSs.
- 如权利要求32-34任一项所述的方法,其中,A method according to any of claims 32-34, wherein接收第二指示信息,所述第二指示信息用于指示所述第一终端根据所述至少两个CSI-RS进行速率匹配;根据所述第二指示信息以及所述至少两个CSI-RS进行速率匹配;And receiving the second indication information, where the second indication information is used to indicate that the first terminal performs rate matching according to the at least two CSI-RSs; according to the second indication information and the at least two CSI-RSs Rate matching和/或,and / or,接收第三指示信息,所述第三指示信息用于指示所述第一终端根据所述至少两个CSI-RS中的任一CSI-RS进行波束管理;根据所述第三指示信息以及所述至少两个CSI-RS中的任一CSI-RS进行波束管理;And receiving the third indication information, where the third indication information is used to indicate that the first terminal performs beam management according to any one of the at least two CSI-RSs; according to the third indication information and the Performing beam management on any of the at least two CSI-RSs;和/或,and / or,接收第四指示信息,所述第四指示信息用于指示所述第一终端根据所述至少两个CSI-RS中的任一CSI-RS获取信道状态信息;根据所述第四指示信息以及所述至少两个CSI-RS中的任一CSI-RS获取信道状态信息。Receiving fourth indication information, where the fourth indication information is used to indicate that the first terminal acquires channel state information according to any one of the at least two CSI-RSs; according to the fourth indication information and the Any of the at least two CSI-RSs acquires channel state information.
- 一种网络设备,包括:A network device, including:确定单元,用于确定预先配置的第三CSI-RS资源集合中的至少两个CSI-RS的时频资源,或者,用于确定预先配置的第四CSI-RS资源集合中的至少一个CSI-RS组中CSI-RS的时频资源;其中,每个CSI-RS组包括至少两个CSI-RS;a determining unit, configured to determine a time-frequency resource of at least two CSI-RSs in the preset third CSI-RS resource set, or used to determine at least one CSI in the pre-configured fourth CSI-RS resource set Time-frequency resources of CSI-RSs in the RS group; wherein each CSI-RS group includes at least two CSI-RSs;发送单元,用于使用所述至少两个CSI-RS的时频资源向第一终端发送CSI-RS;其中,所述CSI-RS用于时频跟踪。And a sending unit, configured to send, by using a time-frequency resource of the at least two CSI-RSs, a CSI-RS to the first terminal, where the CSI-RS is used for time-frequency tracking.
- 如权利要求36所述的网络设备,其中,The network device according to claim 36, wherein所述确定单元在确定预先配置的第三CSI-RS资源集合中的至少两个CSI-RS的时频资源时具体用于:根据网络参数信息,确定预先配置的第三CSI-RS资源集合中的至少两个CSI-RS的时频资源;或者,The determining unit is configured to determine, according to the network parameter information, the pre-configured third CSI-RS resource set, when determining the time-frequency resource of the at least two CSI-RSs in the preset third CSI-RS resource set. Time-frequency resources of at least two CSI-RSs; or,所述确定单元在确定预先配置的第四CSI-RS资源集合中的至少一个CSI-RS组中CSI-RS的时频资源时具体用于:根据网络匹配信息,确定预先配置的第四CSI-RS资源集合中的至少一个CSI-RS组中CSI-RS的时频资源;And determining, by the determining unit, the time-frequency resource of the CSI-RS in the at least one CSI-RS group in the fourth CSI-RS resource set that is configured in advance: determining, according to the network matching information, the pre-configured fourth CSI- a time-frequency resource of a CSI-RS in at least one CSI-RS group in the RS resource set;其中,所述参数信息包括以下信息中的至少一种:所述网络设备管理的小区的小区ID以及小区与CSI-RS的时频资源间的映射关系,所述网络设备管理的小区的小区所处区域的区域ID以及区域与CSI-RS的时频资源间的映射关系,CSI-RS资源集合所配置CSI-RS集合内CSI-RS资源数量。The parameter information includes at least one of the following: a cell ID of a cell managed by the network device, and a mapping relationship between a cell and a time-frequency resource of the CSI-RS, and a cell of the cell managed by the network device. The area ID of the area and the mapping relationship between the area and the time-frequency resource of the CSI-RS, and the number of CSI-RS resources in the CSI-RS set configured by the CSI-RS resource set.
- 如权利要求36或37所述的网络设备,其中,A network device according to claim 36 or 37, wherein所述发送单元,还用于:The sending unit is further configured to:向第二终端发送第二指示信息,所述第二指示信息用于指示所述第二终端根据所述至少两个CSI-RS进行速率匹配;Transmitting, to the second terminal, second indication information, where the second indication information is used to indicate that the second terminal performs rate matching according to the at least two CSI-RSs;和/或,and / or,向第三终端发送第三指示信息,所述第三指示信息用于指示所述第三终端根据所述至少两个CSI-RS中的任一CSI-RS进行波束管理;Sending third indication information to the third terminal, where the third indication information is used to indicate that the third terminal performs beam management according to any one of the at least two CSI-RSs;和/或,and / or,向第四终端发送第四指示信息,所述第四指示信息用于指示所述第四终端根据所述至少两个CSI-RS中的任一CSI-RS获取信道状态信息。The fourth indication information is sent to the fourth terminal, where the fourth indication information is used to indicate that the fourth terminal acquires channel state information according to any one of the at least two CSI-RSs.
- 一种第一终端,包括:A first terminal includes:确定单元,用于确定预先配置的第三CSI-RS资源集合中的至少两个CSI-RS的时频资源,或者,确定预先配置的第四CSI-RS资源集合中的至少一个CSI-RS组中CSI-RS的时频资源;其中,所述每个CSI-RS组包括至少两个CSI-RS;a determining unit, configured to determine a time-frequency resource of at least two CSI-RSs in the preset third CSI-RS resource set, or determine at least one CSI-RS group in the pre-configured fourth CSI-RS resource set a time-frequency resource of a medium CSI-RS; wherein each of the CSI-RS groups includes at least two CSI-RSs;接收单元,用于使用所述至少两个CSI-RS的时频资源接收CSI-RS;其中,所述CSI-RS用于时频跟踪。And a receiving unit, configured to receive, by using a time-frequency resource of the at least two CSI-RSs, where the CSI-RS is used for time-frequency tracking.
- 如权利要求39所述的第一终端,其中,A first terminal according to claim 39, wherein所述确定单元在确定预先配置的第三CSI-RS资源集合中的至少两个CSI-RS的时频资源时具体用于:根据网络参数信息,确定所述第三CSI-RS资源集合中的至少两个CSI-RS的时频资源;And determining, by the determining unit, the time-frequency resources of the at least two CSI-RSs in the third CSI-RS resource set that are configured in advance: determining, according to the network parameter information, the third CSI-RS resource set Time-frequency resources of at least two CSI-RSs;所述确定单元在确定预先配置的第四CSI-RS资源集合中的至少一个CSI-RS组中CSI-RS的时频资源时具体用于:根据网络参数信息,确定所述第四CSI-RS资源集合中的至少两个CSI-RS的时频资源;And determining, by the determining unit, the time-frequency resource of the CSI-RS in the at least one CSI-RS group in the fourth CSI-RS resource set that is configured in advance: determining, according to the network parameter information, the fourth CSI-RS Time-frequency resources of at least two CSI-RSs in the resource set;其中,所述网络参数信息包括以下信息中的至少一种:所述终端的服务小区ID以及小区与CSI-RS的时频资源间的映射关系,所述第一终端的服务器小区所处区域的区域ID以及区域与CSI-RS的时频资源间的映射关系,CSI-RS资源集合所配置CSI-RS集合内CSI-RS资源数量。The network parameter information includes at least one of the following: a serving cell ID of the terminal, and a mapping relationship between the cell and a time-frequency resource of the CSI-RS, where the server cell of the first terminal is located The mapping between the area ID and the time-frequency resource of the area and the CSI-RS, and the number of CSI-RS resources in the CSI-RS set configured by the CSI-RS resource set.
- 如权利要求39所述的第一终端,其中,所述终端还包括:The first terminal of claim 39, wherein the terminal further comprises:时频跟踪单元,用于根据所述至少两个CSI-RS对接收到的网络设备发送的数据进行时频跟踪。The time-frequency tracking unit is configured to perform time-frequency tracking on the data sent by the received network device according to the at least two CSI-RSs.
- 如权利要求39-41任一项所述的第一终端,其中,A first terminal according to any one of claims 39 to 41, wherein所述接收单元,还用于接收第二指示信息,所述第二指示信息用于指示所述第一终端根据所述至少两个CSI-RS进行速率匹配;The receiving unit is further configured to receive the second indication information, where the second indication information is used to indicate that the first terminal performs rate matching according to the at least two CSI-RSs;所述第一终端还包括:速率匹配单元,用于根据所述第二指示信息以及所述至少两个CSI-RS进行速率匹配;The first terminal further includes: a rate matching unit, configured to perform rate matching according to the second indication information and the at least two CSI-RSs;和/或,and / or,所述接收单元,还用于接收第三指示信息,所述第三指示信息用于指示所述第一终端根据所述至少两个CSI-RS中的任一CSI-RS进行波束管理;The receiving unit is further configured to receive third indication information, where the third indication information is used to indicate that the first terminal performs beam management according to any one of the at least two CSI-RSs;所述第一终端还包括:波束管理单元,用于根据所述第三指示信息以及 所述至少两个CSI-RS中的任一CSI-RS进行波束管理;The first terminal further includes: a beam management unit, configured to perform beam management according to the third indication information and any one of the at least two CSI-RSs;和/或,and / or,所述接收单元,还用于接收第四指示信息,所述第四指示信息用于指示所述第一终端根据所述至少两个CSI-RS中的任一CSI-RS获取信道状态信息;The receiving unit is further configured to receive fourth indication information, where the fourth indication information is used to indicate that the first terminal acquires channel state information according to any one of the at least two CSI-RSs;所述第一终端还包括:信道检测单元,用于根据所述第四指示信息以及所述至少两个CSI-RS中的任一CSI-RS获取信道状态信息。The first terminal further includes: a channel detecting unit, configured to acquire channel state information according to the fourth indication information and any one of the at least two CSI-RSs.
- 一种网络设备,包括处理器、存储器以及存储于所述存储器上并可在所述处理器上运行的计算机程序,所述处理器执行所述计算机程序时实现如权利要求1至7、29至31中任一项所述的传输参考信号的方法的步骤。A network device comprising a processor, a memory, and a computer program stored on the memory and operable on the processor, the processor executing the computer program as claimed in claims 1 to 7, 29 The method of the method of transmitting a reference signal according to any of the preceding claims.
- 一种第一终端,包括处理器、存储器以及存储于所述存储器上并可在所述处理器上运行的计算机程序,所述处理器执行所述计算机程序时实现如权利要求8至14、32至35中任一项所述的用于传输参考信号的方法的步骤。A first terminal comprising a processor, a memory, and a computer program stored on the memory and operable on the processor, the processor executing the computer program as claimed in claims 8 to 14, 32 The method of the method for transmitting a reference signal as described in any one of 35.
- 一种计算机可读存储介质,其中,所述计算机可读存储介质上存储有计算机程序,所述计算机程序被处理器执行时实现如权利要求1至7、29至31中任一项所述的用于传输参考信号的方法的步骤。A computer readable storage medium, wherein the computer readable storage medium stores a computer program, the computer program being executed by a processor to implement the method of any one of claims 1 to 7, 29 to 31 The steps of the method for transmitting a reference signal.
- 一种计算机可读存储介质,其中,所述计算机可读存储介质上存储有计算机程序,所述计算机程序被处理器执行时实现如权利要求8至14、32至35中任一项所述的用于传输参考信号的方法的步骤。A computer readable storage medium, wherein the computer readable storage medium stores a computer program, the computer program being executed by a processor to implement the method of any one of claims 8 to 14, 32 to 35 The steps of the method for transmitting a reference signal.
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