WO2018058456A1 - 信道状态信息参考信号发送方法与接收方法及设备 - Google Patents

信道状态信息参考信号发送方法与接收方法及设备 Download PDF

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Publication number
WO2018058456A1
WO2018058456A1 PCT/CN2016/100878 CN2016100878W WO2018058456A1 WO 2018058456 A1 WO2018058456 A1 WO 2018058456A1 CN 2016100878 W CN2016100878 W CN 2016100878W WO 2018058456 A1 WO2018058456 A1 WO 2018058456A1
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Prior art keywords
antenna port
csi
resource
antenna
cdm
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PCT/CN2016/100878
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English (en)
French (fr)
Inventor
贺传峰
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201680089327.8A priority Critical patent/CN109716797A/zh
Priority to PCT/CN2016/100878 priority patent/WO2018058456A1/zh
Publication of WO2018058456A1 publication Critical patent/WO2018058456A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services

Definitions

  • the present application relates to the field of wireless communications, and in particular, to a channel state information reference signal transmitting method and receiving method and device.
  • a terminal device In a communication system, a terminal device usually needs to use a channel state information reference signal (CSI-RS) transmitted by a network device to implement channel estimation or channel measurement.
  • CSI-RS channel state information reference signal
  • the network device In order for the terminal device to know which time-frequency signals are used for transmitting the CSI-RS, the network device needs to configure the CSI-RS resources for transmitting the CSI-RS for the terminal device before transmitting the reference signal.
  • the CSI-RS resource contains a certain number of antenna ports.
  • the number of antenna ports included in the CSI-RS resource may be 1, 2, 4, or 8; in LTE R13, the number of antenna ports included in the CSI-RS resource may be 12 or 16; in LTE R14
  • the number of antenna ports included in the CSI-RS resource is 20, 24, 28, or 32.
  • the CSI-RS of each antenna port needs to occupy a resource element (RE) in each resource block (RB).
  • the CSI-RS of one port can be sent through a set of REs, and the CSI-RSs of different ports can be code division multiplexing.
  • the method referred to as CDM) is multiplexed on a group of identical REs.
  • the antenna ports in the CSI-RS resources configured by the network device to the terminal device adopt the same CDM type, and then the CSI-RSs of the respective antenna ports implement CDM according to the CDM type.
  • the CSI-RSs of the 2 antenna ports of the terminal device are multiplexed on 2 REs by orthogonal codes of length 2
  • the CDM type configured by the network device is CDM4.
  • the CSI-RSs of the four antenna ports are multiplexed on the four REs by orthogonal codes of length 4.
  • the antenna port of the CSI-RS resource configured by the network device to the terminal device adopts a unified CDM type, it may cause The results obtained by using CSI-RS for channel estimation or channel measurement are affected.
  • the present application provides a channel state information reference signal sending method and receiving method and device, which can reduce the degree to which the result of channel estimation or channel measurement of the CSI-RS is affected by configuring a unified CDM type.
  • the present application provides a channel state information reference signal sending method, including: determining, by a network device, a number of antenna ports corresponding to a channel state information reference signal CSI-RS resource; the network device corresponding to the number of antenna ports The antenna port is divided into at least two antenna port sets; the network device determines a code division multiplexing CDM type corresponding to each of the at least two antenna port sets; the network device sends the terminal device to the terminal device CSI-RS resource configuration information, where the CSI-RS resource configuration information is used to indicate CSI-RS resources and CDM types corresponding to antenna ports in each of the at least two antenna port sets; the network The device sends the CSI-RS of the antenna port in the antenna port set according to the CDM type and the CSI-RS resource corresponding to each of the antenna ports.
  • the time-frequency resource density corresponding to the antenna port in the different antenna port sets is different.
  • the time-frequency resource corresponding to the antenna port in the first antenna port set of the at least two antenna port sets The density is higher than a time-frequency resource density corresponding to the antenna port of the second antenna port set of the at least two antenna port sets, and the first antenna port set corresponds to a CDM length lower than the second antenna port set. Corresponding CDM length.
  • the antenna port of each of the at least two antenna port sets contains 4 or 8 antenna ports.
  • a third possible implementation manner of the first aspect if the CSI-RS resource density of the antenna port in the antenna port set is If 1, the CDM length configured for the antenna port set is 2 or 4; or, if the CSI-RS resource density of the antenna port in the antenna port set is less than 1, the CDM length configured for the antenna port set It is 4 or 8.
  • the present application further provides a channel state information reference signal receiving method, including:
  • the CSI-RS resource configuration information is used to indicate a CSI-RS resource corresponding to an antenna port in each of the at least two antenna port sets.
  • a code division multiplexing CDM type the terminal device receives a CSI-RS of each antenna port in the antenna port set according to a CSI-RS resource and a CDM type corresponding to an antenna port in each of the antenna port sets.
  • the terminal device performs channel measurement according to the CSI-RS.
  • the antenna port corresponding to the different antenna port sets The time-frequency resource density is different.
  • the time-frequency resource density corresponding to the antenna port in the first antenna port set of the at least two antenna port sets a time-frequency resource density corresponding to an antenna port of the second antenna port set of the at least two antenna port sets, where the CDM length corresponding to the first antenna port set is lower than the second antenna port set The length of the CDM.
  • a third possible implementation manner of the first aspect if the CSI-RS resource density of the antenna port in the antenna port set is If 1, the CDM length configured for the antenna port set is 2 or 4; or, if the CSI-RS resource density of the antenna port in the antenna port set is less than 1, the CDM length configured for the antenna port set It is 4 or 8.
  • the present application further provides a channel state information reference signal sending apparatus, where the apparatus may include a receiving module, a processing module, and a sending module, and the like, for performing the method steps in the various implementation manners of the first aspect.
  • the receiving unit transceiver may be implemented by a transceiver of the network device, or may be implemented by a processor, and the transceiver unit may also be implemented by a transceiver of the network device.
  • the transceiver implementation may be controlled by a processor; the processing unit transceiver may be implemented by the processor.
  • the present application further provides a channel state information reference signal receiving apparatus, where the apparatus may include a receiving module, a processing module, and a receiving module, and the like, for performing the method steps in the various implementation manners of the first aspect.
  • the receiving unit transceiver may be implemented by a transceiver of the terminal device, or may be implemented by a processor, and the transceiver unit may also be sent and received by the terminal device.
  • the processor may be implemented, or may be controlled by a processor; the processing unit transceiver may be implemented by the processor.
  • the present application further provides a wireless communication system, which may include the network device described in the foregoing third aspect or the terminal device described in the foregoing fourth aspect.
  • the present application further provides a storage medium, where the computer storage medium may store a program, and when the program is executed, the channel state information reference signal sending method or the channel state information reference signal receiving method provided by the present application may be implemented. Some or all of the steps in the examples.
  • FIG. 1 is a schematic flowchart of an embodiment of a method for transmitting a channel state information reference signal according to the present application
  • FIG. 2 is a schematic diagram of an embodiment of a CSI-RS resource distribution according to the present application.
  • FIG. 3 is a schematic flowchart of an embodiment of a correspondence between a CSI-RS resource and a CDM type according to the present application;
  • FIG. 4 is a schematic flowchart of an embodiment of a method for receiving a channel state information reference signal according to the present application
  • FIG. 5 is a schematic structural diagram of an embodiment of a network device according to the present application.
  • FIG. 6 is a schematic structural diagram of an embodiment of a terminal device according to the present application.
  • FIG. 7 is a schematic structural diagram of another embodiment of a network device according to the present application.
  • FIG. 8 is a schematic structural diagram of another embodiment of a terminal device according to the present application.
  • the embodiments of the present invention can be applied to a wireless communication system including a terminal device or a terminal device.
  • a wireless communication system including a terminal device or a terminal device.
  • an LTE system or other wireless communication system using various radio access technologies, for example, using code division multiple access, frequency division multiple access, time division multiple access, orthogonal frequency division multiple access, single carrier frequency division multiple access, etc.
  • the subsequent evolution system such as the fifth generation (5G) system.
  • the embodiment of the present invention is applicable to data transmission between a terminal device and a network device, data transmission between the terminal device and the terminal device, or data transmission between the network device and the network device.
  • the terminal device can be a device that provides voice and or data connectivity to the user, a handheld device with wireless connectivity, or other processing device that is 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 mobile terminal.
  • RAN radio access network
  • the computer for example, can be a portable, pocket, handheld, computer built-in or in-vehicle mobile device that exchanges language and or data with the wireless access network.
  • a wireless terminal may also be referred to as a system, a subscriber unit (SU), a subscriber station (SS), a mobile station (MS), a remote station (RS), and an access station.
  • Point (access point, AP for short) remote terminal (RT), access terminal (AT), user terminal (UT), user agent (UA) User equipment, or user equipment (UE).
  • the network device involved in the embodiments of the present invention may be a base station, or an access point, or may refer to a device in the access network that communicates with the wireless terminal through one or more sectors on the air interface.
  • the base station can be used to convert the received air frame and the IP packet into a router between the wireless terminal and the rest of the access network, wherein the rest of the access network can include an Internet Protocol (IP) network.
  • IP Internet Protocol
  • the base station can also coordinate attribute management of the air interface.
  • the base station may be a Base Transceiver Station (BTS) in GSM or CDMA, or may be a base station (NodeB) in WCDMA, or may be an evolved base station (eNodeB) in LTE.
  • BTS Base Transceiver Station
  • NodeB base station
  • eNodeB evolved base station
  • FIG. 1 it is a flowchart of an embodiment of a reference signal sending method of the present application.
  • the method steps shown in this embodiment may be performed by a network device. If shown in FIG. 1, the embodiment may include the following steps:
  • Step 101 The network device determines the number of antenna ports corresponding to the CSI-RS resource.
  • the CSI-RS resource refers to a time-frequency resource allocated by the network device for transmitting the respective antenna ports CSI-RS.
  • the number of antenna ports may also be different according to the number of antenna ports supported by the network device, the capability of the terminal device, and the CSI measurement.
  • the number of antenna ports of the CSI-RS resource may be 20, 24, and 28 Or 32.
  • the network device may first determine the number of antenna ports of the CSI-RS resource according to the number of supported antenna ports, the capabilities of the terminal device, and the requirements of CSI measurement.
  • Step 102 The network device divides the antenna port corresponding to the number of antenna ports of the CSI-RS resource into at least two antenna port sets.
  • the network device divides the antenna port into at least two antenna port sets according to the number of the antenna ports, and the sum of the number of antenna ports in each antenna port set is the CSI-RS resource.
  • Each antenna port set may include at least one antenna port, and the number of antenna ports in each antenna port set may be equal or unequal.
  • a CSI-RS resource of a high number of ports is usually generated by aggregation of a low number of port CSI-RS resources, for example, when the number of antenna ports of the CSI-RS resource is 12 or more, the terminal device is configured.
  • the CSI-RS resource is aggregated by a 4-port CSI-RS resource or an 8-port CSI-RS resource. Since the CSI-RS resources of the high number of ports are usually generated by the aggregation of the low number of port CSI-RS resources, the number of antenna port sets and the antennas included in each antenna port set can be determined according to the aggregation manner of the CSI-RS resources. The number of ports.
  • the number of antenna ports of the CSI-RS can be configured to be 12 or 16, that is, the CSI-RS supports a maximum of 16 antenna ports, and the CSI-RS resources of the 16 antenna ports can adopt two 8-port CSIs.
  • the RS resources are aggregated.
  • the CSI-RS resources of the 12 antenna ports can be aggregated by using three 4-port CSI-RS resources. Therefore, when dividing the port set, if the number of the antenna ports is 16, all the antenna ports of the terminal can be divided into two antenna port sets, wherein each antenna port set includes 8 antenna ports. If the number of antenna ports is 12, all antenna ports of the terminal may be divided into three antenna port sets, wherein each antenna port set includes 4 antenna ports.
  • the number of antenna ports in each of the antenna port sets may be 4 or 8.
  • Step 103 The network device determines a code division multiplexing CDM type corresponding to each of the at least two antenna port sets.
  • the network device configures one CDM type for each of the antenna port sets.
  • the CDM types corresponding to the respective antenna port sets may be the same or different.
  • the CDM type includes CDM2, CDM4, and CDM8, and different types of CDMs have different lengths. Generally, the CDM length of CDM8 is greater than the CDM length of CDM4, and the CDM length of CDM4 is greater than the CDM length of CDM2.
  • Other CDM types can be deduced by analogy.
  • the CSI-RS resource density can usually be reduced from the frequency domain.
  • the CSI-RS resource density refers to the ratio between the number of REs of the CSI-RSs used to carry a group of antenna ports and the system bandwidth, as the density of the group of antenna ports. If the antenna port in the CSI-RS resource is not transmitted in the CDM mode, the CSI-RS of each antenna port is carried by one RE. Therefore, the CSI-RS resource density can also be expressed, and the first type of RB and the total number of RBs are The ratio, where the first type of RB refers to an RB in which an RE for carrying a CSI-RS exists, and its unit can be generally expressed as: RE/RB/port.
  • a CSI-RS resource density of 1 RE/RB/port means that for each antenna port in a port set, there is one RE in each RB for transmitting the CSI-RS of the antenna port.
  • the CSI-RS resource density of 0.5RE/RB/port means that for each antenna port in a port set, only one RE in every two RBs is used to transmit the CSI-RS of the antenna port, that is, The RE transmitting the CSI-RS does not appear in every RB, but only one of the 2 RBs has an RE for CSI-RS transmission.
  • the CSI-RSs of a group of antenna ports are carried by a group of REs, so the CSI-RS resource density of the group of antenna ports may also be represented as the group of antenna ports.
  • the density of the CSI-RS corresponding to the first antenna port set may be set to 1 RE/RB/port, and the second antenna port set and The density of the corresponding CSI-RS of the third antenna port set may be 0.5 RE/RB/port. If there are 8 antenna ports in each antenna port set, only 16 REs can be carried in each RB to carry CSI-RS, so that the radio resource overhead for supporting CSI-RS with antenna port number 24 can be reduced.
  • each square represents an RE
  • the REs having the same RE filling manner as indicated by 201 are used to transmit the RE of the CSI-RS of the antenna port in the first antenna port set
  • the RE indicated by 202 The REs of the same filling mode are used to transmit the REs of the CSI-RSs of the antenna ports in the second antenna port set; the REs of the same manner as the RE filling manner indicated by 203 are used to transmit the CSI-RSs of the antenna ports in the third antenna port set.
  • RE It should be noted that only two RBs of the nth RB and the n+1th RB are shown in FIG. 4, and in practice, more RBs or fewer RBs may be included.
  • the network device may configure the code division multiplexing CDM type corresponding to the antenna port set according to the CSI-RS resource density corresponding to the antenna port in the antenna port set.
  • the CDM length of the antenna port with a low CSI-RS resource density can be made higher than the CDM length of the antenna port with a high CSI-RS resource density, thereby compensating for the loss of CSI measurement performance due to the low CSI-RS resource density.
  • the time-frequency resource density corresponding to the antenna port in the first antenna port set of the at least two antenna port sets is higher than the antenna port corresponding to the second antenna port set in the at least two antenna port sets
  • the time-frequency resource density, the CDM length corresponding to the first antenna port set is lower than the CDM length corresponding to the second antenna port set degree.
  • the CDM type configured for the antenna port set may be CDM for sharing with the UEs of R12 and R13. 2 or 4, to ensure that it can be shared with the UEs of R12 and R13; for the port where the CSI-RS resource density of the antenna port in the antenna port set is less than 1RE/RB/port, the CDM type configured for the antenna port set may be It is CDM4 or 8, so that the antenna port in the antenna port set obtains higher transmission power to compensate for the performance loss of CSI measurement caused by the CSI-RS resource density reduction.
  • CDM8 can be used to obtain higher transmission power.
  • the antenna port in the first port set in the CSI-RS resource configuration adopts CDM4, and the antenna port in the second and third port set adopts CDM 8.
  • REs of the same letter represent RE groups according to the same CDM.
  • the CDM lengths of A and B are equivalent, the CDM lengths of C and D are equal, and the CDM lengths of A and B are smaller than the CDM lengths of C and D.
  • a and B can be CDM4, while C and D can be CDM8.
  • Step 104 The network device sends the CSI-RS resource configuration information to the terminal device, where the CSI-RS resource configuration information is used to indicate the CSI corresponding to the antenna port in each of the at least two antenna port sets.
  • RS resources and CDM types are used to indicate the CSI corresponding to the antenna port in each of the at least two antenna port sets.
  • the network device may send CSI-RS resource configuration information to the terminal device, where the CSI-RS resource configuration information is used to indicate the CSI-RS resources and CDM types corresponding to antenna ports in each of the at least two antenna port sets.
  • the CSI-RS resource corresponding to the antenna port in the antenna port set may include the CSI-RS resource used to transmit each antenna port in the antenna port set.
  • the CSI-RS resource configuration information may be used to indicate: a CSI-RS corresponding to an antenna port in the first antenna port set.
  • Step 105 The network device sends the CSI-RS of the antenna port in the antenna port set according to the CDM type and the CSI-RS resource corresponding to each of the antenna port sets.
  • the network device After the CSI-RS resource configuration information is sent, since the CSI-RS resources corresponding to each antenna port have been determined, the network device according to the CDM type and CSI corresponding to each of the antenna port sets.
  • the RS resource transmits a CSI-RS of an antenna port in the set of antenna ports. The specific sending process will not be described here.
  • the antenna port in the CSI-RS resource By dividing the antenna port in the CSI-RS resource into different antenna port sets and configuring different CDM types for the CSI-RS resource configuration in each port set, it may be in the port set with low CSI-RS resource density.
  • the port configures a higher CDM length to obtain higher transmit power, which is used to compensate for the performance loss of CSI measurement caused by the CSI-RS resource density reduction.
  • the CSI measurement performance of the ports of different densities in the CSI-RS resources can be similar, the accuracy of the CSI measurement is improved, and the downlink throughput of the system is improved.
  • FIG. 4 it is a schematic flowchart of an embodiment of a channel state information reference signal receiving method according to the present application. As shown in FIG. 4, the method may include:
  • Step 401 The terminal device receives the channel state information reference signal CSI-RS resource configuration information, where the CSI-RS resource configuration information is used to indicate an antenna port corresponding to each antenna port set in the at least two antenna port sets.
  • CSI-RS resources and CDM types are used to indicate an antenna port corresponding to each antenna port set in the at least two antenna port sets.
  • the terminal device may first receive the CSI-RS resource configuration information, and the related content of the CSI-RS resource configuration information may refer to the foregoing embodiment, and details are not described herein again.
  • Step 402 The terminal device receives, according to the CSI-RS resource and the CDM type corresponding to the antenna port in each of the antenna port sets, a CSI-RS of an antenna port in each of the antenna port sets.
  • the terminal device After receiving the CSI-RS resource configuration information, determining, according to the CSI-RS resource configuration information, a CDM type and a CSI-RS resource corresponding to each antenna port set; and determining a CDM corresponding to each antenna port.
  • Type and CSI-RS resources after the CDM type and CSI-RS resources of each antenna port are determined, the terminal device receives the CSI-RS of each antenna port according to the CDM type of each antenna port and the CSI-RS resource.
  • the channel measurement performed by using the technical solution provided by the present embodiment can make the measurement performance of each antenna port similar, so that the performance difference of the channel measurement can be reduced when the terminal device performs channel measurement.
  • the terminal device may also perform channel measurement according to the reception result of the CSI-RS. Therefore, after step 402, the method may further include:
  • Step 403 The terminal device performs channel measurement according to the CSI-RS.
  • the terminal device may further send the measurement result to the network device, so that the network device performs scheduling and the like according to the measurement result.
  • the channel measurement is performed by using the technical solution provided by the implementation, which may be that the channel measurement result is more accurate.
  • FIG. 5 it is a schematic structural diagram of an embodiment of an application network device.
  • the network device can be used to perform The channel state information reference signal transmission method corresponding to FIG. 1 is performed.
  • the network device may include: a receiving unit 501, a processing unit 502, and a sending unit 503.
  • the processing unit 502 is configured to determine the number of antenna ports corresponding to the CSI-RS resource of the channel state information reference signal, and divide the antenna port corresponding to the number of the antenna ports into at least two antenna port sets; determine the at least two a code division multiplexing CDM type corresponding to each of the antenna port sets in the antenna port set; a sending unit 503, configured to send CSI-RS resource configuration information to the terminal device, where the CSI-RS resource configuration information is used to indicate the a CSI-RS resource and a CDM type corresponding to an antenna port in each of the at least two antenna port sets; and transmitting CSI of the antenna port in the antenna port set according to a CDM type corresponding to each of the antenna ports -RS.
  • the terminal device may be configured to perform the channel state information reference signal receiving method corresponding to FIG. 4. As shown in FIG. 6, the terminal device may include: a receiving unit 601, a processing unit 602, and a sending unit 603.
  • the receiving unit 601 is configured to receive channel state information reference signal CSI-RS resource configuration information, where the CSI-RS resource configuration information is used to indicate an antenna port in each of the at least two antenna port sets.
  • CSI-RS resource configuration information is used to indicate an antenna port in each of the at least two antenna port sets.
  • the processing unit 602 performs channel measurement according to the CSI-RS of the antenna port in each of the antenna port sets.
  • the sending unit 603 is configured to send the measurement result obtained by the channel measurement to the network device.
  • FIG. 7 is a schematic structural diagram of another embodiment of a network device according to the present application.
  • the network device in this embodiment may be used to perform the method steps in the channel sending method shown in FIG. 1.
  • the network device may be composed of a processor 701, a memory 702, a transceiver 703, and the like.
  • the processor 701 is a control center of the network device, and connects various parts of the entire network device by using various interfaces and lines, by running or executing software programs and/or modules stored in the memory, and calling data stored in the memory, Perform various functions of the network device and/or process data.
  • the processor may be a central processing unit (CPU), a network processor (NP) or a combination of a CPU and an NP.
  • the processor may further include a hardware chip.
  • the hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD) or a combination thereof.
  • the above PLD can be complex programmable A complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a general array logic (GAL), or any combination thereof.
  • the memory 702 may include a volatile memory, such as a random access memory (RAM); and may also include a non-volatile memory, such as a flash memory (flash) Memory), hard disk drive (HDD) or solid-state drive (SSD); the memory may also include a combination of the above types of memory.
  • RAM random access memory
  • non-volatile memory such as a flash memory (flash) Memory), hard disk drive (HDD) or solid-state drive (SSD); the memory may also include a combination of the above types of memory.
  • a program or code may be stored in the memory, and the processor in the network element may implement the function of the network element by executing the program or code.
  • the network device may be used to implement various steps of the channel state information reference signal sending method in the foregoing embodiment.
  • the function to be implemented by the receiving unit 501 may be implemented by the transceiver 703 of the terminal device or by the transceiver 703 controlled by the processor 701; the function to be implemented by the sending unit 503 may also be implemented by the terminal.
  • the transceiver 703 of the device is implemented or can also be implemented by the transceiver 703 controlled by the processor 701; the functions to be implemented by the processing unit 502 can be implemented by the processor 701.
  • FIG. 8 is a schematic structural diagram of another embodiment of a terminal device according to the present application.
  • FIG. 8 is a schematic structural diagram of an embodiment of a terminal device according to the present application.
  • the terminal device may be the terminal device in any of the foregoing embodiments, and may be used to perform the method steps in the channel sending method shown in FIG.
  • the terminal device may include a processor 801, a memory 802, and a transceiver 803.
  • the transceiver 803 may include components such as a receiver 8031, a transmitter 8032, and an antenna 8033.
  • the terminal device may also include more or less components, or some components, or different component arrangements, which are not limited by the present invention.
  • the processor 801 is a control center of the terminal device, which connects various parts of the entire terminal device by using various interfaces and lines, by running or executing software programs and/or modules stored in the memory 802, and calling data stored in the memory, To perform various functions of the terminal device and/or process data.
  • the processor 801 may be composed of an integrated circuit (IC), for example, may be composed of a single packaged IC, or may be composed of a plurality of packaged ICs that have the same function or different functions.
  • the processor may include only a central processing unit (CPU), or may be a GPU, a digital signal processor (DSP), and a control chip in the transceiver 803 (for example, a baseband). A combination of chips).
  • the CPU may be a single operation core, and may also include a multi-operation core.
  • the transceiver 803 is configured to establish a communication channel, and enable the terminal device to connect to the receiving device through the communication channel, thereby implementing data transmission between the terminal devices.
  • the transceiver 803 may include a wireless local area network (WLAN) module, a Bluetooth module, a baseband module, and the like, and a radio frequency (RF) circuit corresponding to the communication module.
  • WLAN wireless local area network
  • RF radio frequency
  • WCDMA wideband code division multiple access
  • HSDPA high speed downlink packet access
  • the transceiver 803 is configured to control communication of components in the terminal device and can support direct memory access.
  • the various transceivers 803 in the transceiver 803 are typically in the form of integrated circuit chips and can be selectively combined without necessarily including all of the transceivers 803 and Corresponding antenna group.
  • the transceiver 803 can include only baseband chips, radio frequency chips, and corresponding antennas to provide communication functionality in a cellular communication system.
  • the wireless communication connection established via the transceiver 803, such as wireless local area network access or WCDMA access may be connected to a cellular network or the internet.
  • a communication module, such as a baseband module, in the transceiver 803 can be integrated into the processor, typically an APQ+MDM series platform such as that provided by Qualcomm.
  • the radio frequency circuit is used for receiving and transmitting signals during information transmission and reception or during a call. For example, after the downlink information of the network device is received, it is processed by the processor; in addition, the data designed for the uplink is sent to the network device.
  • the radio frequency circuit includes well-known circuits for performing these functions, including but not limited to an antenna system, a radio frequency transceiver, one or more amplifiers, a tuner, one or more oscillators, a digital signal processor, a codec. (codec) chipset, Subscriber Identity Module (SIM) card, memory, etc.
  • the RF circuit can communicate with the network and other devices through wireless communication.
  • the wireless communication may use any communication standard or protocol, including but not limited to a global system of mobile communication (GSM), a general packet radio service (gprs), and code division multiple access.
  • GSM global system of mobile communication
  • gprs general packet radio service
  • code division multiple access code division multiple access, CDMA for short
  • WCDMA wideband code division multiple access
  • HSUPA high speed uplink packet access
  • LTE long-term evolution
  • SMS short messaging service
  • the terminal device may be used to implement various method steps of the channel state information reference signal receiving method in the foregoing embodiment.
  • the function to be implemented by the receiving unit 601 may be implemented by the transceiver 803 of the terminal device or by the transceiver 803 controlled by the processor 801;
  • the implemented functions may also be implemented by the transceiver 803 of the terminal device, or may also be implemented by the transceiver 803 controlled by the processor 801;
  • the functions to be implemented by the processing unit 802 may be implemented by the processor 601. .
  • the present invention further provides a computer storage medium, wherein the computer storage medium may store a program, where the program may include each of a channel state information reference signal sending method or a channel state information reference signal receiving method provided by the present invention. Some or all of the steps in the examples.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM: ROM) or a random access memory (RAM).
  • the techniques in the embodiments of the present invention can be implemented by means of software plus a necessary general hardware platform. Based on such understanding, the technical solution in the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product, which may be stored in a storage medium such as a ROM/RAM. , a disk, an optical disk, etc., including instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform the methods described in various embodiments of the present invention or portions of the embodiments.
  • a computer device which may be a personal computer, server, or network device, etc.

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Abstract

本申请提供了状态信息参考信号发送方法与接收方法及设备。信道状态信息参考信号发送方法包括：网络设备确定CSI-RS资源所对应天线端口数量；将天线端口划分为至少两个天线端口集合；确定每一个天线端口集合对应的CDM类型；向终端设备发送CSI-RS资源配置信息，CSI-RS资源配置信息用于指示每一个天线端口集合中的天线端口所对应的CSI-RS资源及CDM类型；根据每一个天线端口所对应的CDM类型及CSI-RS资源发送天线端口集合中天线端口的CSI-RS。采用本申请所提供的方法及装置，可以减小因为配置统一的CDM类型导致CSI-RS进行信道估计或信道测量所得的结果受到影响。

Description

信道状态信息参考信号发送方法与接收方法及设备 技术领域
本申请涉及无线通信领域，尤其涉及信道状态信息参考信号发送方法与接收方法及设备。
背景技术
在通信***中，终端设备通常需要使用网络设备发送的信道状态信息参考信号(channel state information reference signal，简称CSI-RS)来实现信道估计或信道测量。为使终端设备得知哪些时频信号用于传输CSI-RS，在传输所述参考信号之前，网络设备需要为终端设备配置用于传输CSI-RS的CSI-RS资源。
由于在长期演进(long term evolution，简称LTE)***中，网络设备会存在多个天线端口，而终端设备对每一个天线端口都需要进行信道估计或信道测量，因此网络设备需要为终端设备配置的CSI-RS资源包含一定数量的天线端口。例如，在LTE R10中，CSI-RS资源包含的天线端口数量可以为1、2、4或8；而在LTE R13中，CSI-RS资源包含的天线端口数可以为12或16；在LTE R14中，CSI-RS资源包含的天线端口数为20、24、28或32。
通常情况下，每一个天线端口的CSI-RS需要在每一个资源块(resource block，简称RB)中都有都占用一个资源元素(resource element，简称RE)。为充分使用发射功率来保证每个端口的CSI-RS的发射功率，一个端口的CSI-RS可以通过一组RE来发送，不同的端口的CSI-RS可以通过码分复用(code division multiplexing，简称CDM)的方式复用在一组相同的RE上。其中，网络设备给终端设备配置的CSI-RS资源中的天线端口采用相同的CDM类型，然后各个天线端口的CSI-RS按照该CDM类型实现CDM。例如，当网络设备配置的CDM类型为CDM2时，所述终端设备2个天线端口的CSI-RS通过长度为2的正交码复用在2个RE上，当网络设备配置的CDM类型为CDM4时，4个天线端口的CSI-RS通过长度为4的正交码复用在4个RE上。
随着终端设备天线端口数量的不断增多，例如天线端口数为32时，如果网络设备给终端设备配置的CSI-RS资源中的天线端口采用统一的CDM类型，可能会导致 使用CSI-RS进行信道估计或信道测量所得的结果受到影响。
发明内容
本申请提供了信道状态信息参考信号发送方法与接收方法及设备，可以以减小因为配置统一的CDM类型导致CSI-RS进行信道估计或信道测量所得的结果受到影响的程度。
第一方面，本申请提供了一种信道状态信息参考信号发送方法，包括：网络设备确定信道状态信息参考信号CSI-RS资源所对应天线端口数量；所述网络设备将所述天线端口数所对应的天线端口划分为至少两个天线端口集合；所述网络设备确定所述至少两个天线端口集合中每一个所述天线端口集合对应的码分复用CDM类型；所述网络设备向终端设备发送CSI-RS资源配置信息，所述CSI-RS资源配置信息用于指示所述至少两个天线端口集合中每一个天线端口集合中的天线端口所对应的CSI-RS资源及CDM类型；所述网络设备根据每一个所述天线端口所对应的CDM类型及CSI-RS资源发送所述天线端口集合中天线端口的CSI-RS。
结合第一方面，在第一方面第一种可能的实现方式中，在所述至少两个天线端口集合中，不同天线端口集合中天线端口所对应的时频资源密度不同。
结合第一方面第一种可能的实现方式，在第一方面第二种可能的实现方式中，如果所述至少两个天线端口集合中第一天线端口集合中的天线端口所对应的时频资源密度高于所述至少两个天线端口集合中第二天线端口集合的天线端口所对应的时频资源密度，那么所述第一天线端口集合所对应CDM长度低于所述第二天线端口集合所对应的CDM长度。
结合第一方面或第一方面第一至二种可能的实现方式其中任意一种，在第一方面第三种可能的实现方式中，所述至少两个天线端口集合中每一个所述天线端口集合中每一个天线端口集合所包含的天线端口数为4或8。
结合第一方面或第一方面第一至二种可能的实现方式其中任意一种，在第一方面第三种可能的实现方式中，如果所述天线端口集合中天线端口的CSI-RS资源密度为1，则为所述天线端口集合配置的CDM长度为2或4；或者，如果所述天线端口集合中天线端口的CSI-RS资源密度小于1，则为所述天线端口集合配置的CDM长度为4或8。
第二方面，本申请还提供了一种信道状态信息参考信号接收方法，包括：终端设 备接收信道状态信息参考信号CSI-RS资源配置信息，所述CSI-RS资源配置信息用于指示所述至少两个天线端口集合中每一个天线端口集合中的天线端口所对应的CSI-RS资源及码分复用CDM类型；所述终端设备根据每一个所述天线端口集合中的天线端口所对应的CSI-RS资源及CDM类型接收每一个所述天线端口集合中天线端口的CSI-RS。
结合第二方面，在第二方面第一种可能的实现方式中，所述终端设备根据所述CSI-RS进行信道测量。
结合第一方面或第一方面第一种可能的实现方式，在第一方面第二种可能的实现方式中，在所述至少两个天线端口集合中，不同天线端口集合中天线端口所对应的时频资源密度不同。
结合第一方面二种可能的实现方式，在第一方面第三种可能的实现方式中，如果所述至少两个天线端口集合中第一天线端口集合中的天线端口所对应的时频资源密度高于所述至少两个天线端口集合中第二天线端口集合的天线端口所对应的时频资源密度，那么所述第一天线端口集合所对应CDM长度低于所述第二天线端口集合所对应的CDM长度。
结合第一方面或第一方面第一至三种可能的实现方式其中任意一种，在第一方面第三种可能的实现方式中，如果所述天线端口集合中天线端口的CSI-RS资源密度为1，则为所述天线端口集合配置的CDM长度为2或4；或者，如果所述天线端口集合中天线端口的CSI-RS资源密度小于1，则为所述天线端口集合配置的CDM长度为4或8。
第三方面，本申请还提供了一种信道状态信息参考信号发送装置，所述装置可以包括用于执行第一方面各种实现方式中方法步骤的接收模块，处理模块及发送模块等单元模块。其中，所述接收单元收发器可以由所述网络设备的收发器实现，或者也可以由处理器控制所述收发器实现；所述发送单元收发器也可以由所述网络设备的收发器实现，或者也可以由处理器控制所述收发器实现；所述处理单元收发器则可以由所述处理器实现。
第四方面，本申请还提供了一种信道状态信息参考信号接收装置，所述装置可以包括用于执行第一方面各种实现方式中方法步骤的接收模块，处理模块及接收模块等单元模块。其中，所述接收单元收发器可以由所述终端设备的收发器实现，或者也可以由处理器控制所述收发器实现；所述发送单元收发器也可以由所述终端设备的收发 器实现，或者也可以由处理器控制所述收发器实现；所述处理单元收发器则可以由所述处理器实现。
第五方面，本申请还提供了一种无线通信***，所述无线通信***可以包括前述第三方面所述的网络设备或前述第四方面所述的终端设备。
第六方面，本申请还提供了一种存储介质，该计算机存储介质可存储有程序，该程序执行时可实现包括本申请提供的信道状态信息参考信号发送方法或信道状态信息参考信号接收方法各实施例中的部分或全部步骤。
采用本发明所提供的方法或设备，可以减小因为配置统一的CDM类型导致CSI-RS进行信道估计或信道测量所得的结果受到影响。
附图说明
为了更清楚地说明本申请的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，对于本领域普通技术人员而言，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为本申请信道状态信息参考信号发送方法一个实施例的流程示意图；
图2为本申请CSI-RS资源分布一个实施例的示意图；
图3为本申请CSI-RS资源与CDM类型对应关系一个实施例的流程示意图；
图4为本申请信道状态信息参考信号接收方法一个实施例的流程示意图；
图5为本申请网络设备一个实施例的结构示意图；
图6为本申请终端设备一个实施例的结构示意图；
图7为本申请网络设备另一个实施例的结构示意图；
图8为本申请终端设备另一个实施例的结构示意图；。
具体实施方式
本发明实施例可以应用于包括网络设备和终端设备(terminal device or terminal equipment)的无线通信***中。例如，LTE***，或其他采用各种无线接入技术的无线通信***，例如采用码分多址，频分多址，时分多址，正交频分多址，单载波频分多址等接入技术的***，后续的演进***，如第五代(5G)***等。
具体地，本发明实施例可应用于终端设备与网络设备之间传输数据，终端设备与终端设备之间传输数据，或者，网络设备与网络设备之间传输数据。终端设备可以是指向用户提供语音和或数据连通性的设备，具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备。无线终端可以经无线接入网(radio access network，简称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、计算机内置的或车载的移动装置，它们与无线接入网交换语言和或数据。例如，个人通信业务(personal communication service，简称PCS)电话、无绳电话、会话发起协议(session initiation protocol，简称SIP)话机、无线本地环路(wireless local loop，简称WLL)站、个人数字助理(personal digital assistant，简称PDA)等设备。无线终端也可以称为***、订户单元(subscriber unit，简称SU)、订户站(subscriber station，简称SS)，移动站(mobile station，简称MS)、远程站(remote station，简称RS)、接入点(access point，简称AP)、远端设备(remote terminal，简称RT)、接入终端(access terminal，简称AT)、用户终端(user terminal，简称UT)、用户代理(user agent，简称UA)、用户设备、或用户装备(user equipment，简称UE)。
本发明实施例所涉及的网络设备，可以是基站，或者接入点，或者可以是指接入网中在空中接口上通过一个或多个扇区与无线终端通信的设备。基站可用于将收到的空中帧与IP分组进行相互转换，作为无线终端与接入网的其余部分之间的路由器，其中接入网的其余部分可包括网际协议(Internet protocol，简称IP)网络。基站还可协调对空中接口的属性管理。例如，基站可以是GSM或CDMA中的基站(Base Transceiver Station，简称BTS)，也可以是WCDMA中的基站(NodeB)，还可以是LTE中的演进型基站(evolutional Node B，简称eNodeB)，本申请并不限定。
参见图1，为本申请参考信号发送方法一个实施例的流程图。该实施例中所示的方法步骤可以由网络设备执行，如果图1所示，该实施例可以包括如下步骤：
步骤101，网络设备确定CSI-RS资源所对应天线端口数量。其中，所述CSI-RS资源是指由网络设备分配用于传输所述各个天线端口CSI-RS的时频资源。
根据网络设备支持的天线端口数、终端设备的能力和CSI测量的需求，所述天线端口的数量也可以不同，例如在LTE R14中，CSI-RS资源的天线端口数可以为20、24、28或32。网络设备可以首先根据支持的天线端口数、终端设备的能力和CSI测量的需求确定CSI-RS资源的天线端口的数量。
步骤102，网络设备将所述CSI-RS资源的天线端口数所对应的天线端口划分为至少两个天线端口集合。
在天线端口的数量确定后，网络设备根据所述天线端口的数量将所述天线端口划分至少两个天线端口集合，各天线端口集合中天线端口的数量之和，即为所述CSI-RS资源的天线端口数量。其中，每一个天线端口集合中可以包括至少一个天线端口，各个天线端口集合中天线端口的数量可以相等也可以不相等。
在LTE中，高数量端口的CSI-RS资源通常由低数量端口CSI-RS资源的聚合产生，例如，当CSI-RS资源的天线端口数量为12或更多时，所述为终端设备配置的CSI-RS资源由4端口的CSI-RS资源或8端口的CSI-RS资源聚合而成。由于高数量端口的CSI-RS资源通常由低数量端口CSI-RS资源的聚合产生，因此可以根据CSI-RS资源的聚合方式来确定天线端口集合的数量及每个天线端口集合中所包含的天线端口数量。
例如，在LTE R13中，CSI-RS的天线端口数可以配置为12、16，即CSI-RS最多支持16个天线端口数，16天线端口的CSI-RS资源可以采用两个8端口的CSI-RS资源聚合而成；12天线端口的CSI-RS资源则可以采用三个4端口的CSI-RS资源聚合而成。因此在划分端口集合时，如果所述天线端口数量为16，那么可以将所述终端的所有天线端口划分为两个天线端口集合，其中每个天线端口集合中包含8个天线端口。如果所述天线端口数量为12，那么可以将所述终端的所有天线端口划分为三个天线端口集合，其中每个天线端口集合中包含4个天线端口。
由于高数量端口的CSI-RS资源通常由4端口CSI-RS资源及8端口CSI-RS资源聚合而成，因此每一个所述天线端口集合中天线端口的数量通常可以为4或8。
步骤103，网络设备确定所述至少两个天线端口集合中每一个所述天线端口集合对应的码分复用CDM类型。
在所述天线端口集合都确定之后，网络设备分别为每一个所述天线端口集合配置一个CDM类型(type)。各个天线端口集合对应的CDM类型可以相同也可以不同。其中，所述CDM type包括CDM2、CDM4、CDM8，不同类型的CDM长度不同。通常情况下可以认为，CDM8的CDM长度大于CDM4的CDM长度，CDM4的CDM长度大于CDM2的CDM长度，其他CDM类型可以以此类推。
为减少参考信号所占用的无线资源，通常可以从频域上减少CSI-RS资源密度， 其中，CSI-RS资源密度是指用于承载一组天线端口的CSI-RS的RE的数量与***带宽之间的比值，作为这一组天线端口的密度。CSI-RS资源中的天线端口如果不采用CDM的方式传输，则每一个天线端口的CSI-RS由一个RE来承载，因此CSI-RS资源密度也可以表示，第一类RB与总RB数量的比值，其中，第一类RB是指存在用于承载CSI-RS的RE的RB，其单位通常可以表示为：RE/RB/port。例如，CSI-RS资源密度为1RE/RB/port表示在对于某端口集合中每个天线端口来说，每一个RB中都有一个RE用来传输该天线端口的CSI-RS。CSI-RS资源密度为0.5RE/RB/port则表示在对于某端口集合中每个天线端口来说，每两个RB中才有一个RE用来传输该天线端口的CSI-RS，即用于传输CSI-RS的RE不是在每个RB都会出现，而是在2个RB中才会有一个RB存在用于CSI-RS传输的RE。对于CSI-RS资源中的天线端口采用CDM的方式传输，则一组天线端口的CSI-RS由一组RE来承载，因此该组天线端口的CSI-RS资源密度也可以表示为该组天线端口占用的RE个数与总RB数量、该组包含的天线端口数的比值。
当所述CSI-RS资源的天线端口被分为3个天线端口集合时，可以设定第一天线端口集合所对应的CSI-RS的密度为1RE/RB/port，而第二天线端口集合及第三天线端口集合的所对应的CSI-RS的密度则可以为0.5RE/RB/port。如果每个天线端口集合中包含8个天线端口，那么可以使得每个RB中只需要16个RE承载CSI-RS，从而可以减少用于支持天线端口数为24的CSI-RS的无线资源开销。
例如如图2所示，每一个方格表示一个RE，与201所指示的RE填充方式相同的RE用于传输第一天线端口集合中天线端口的CSI-RS的RE；与202所指示的RE填充方式相同的RE用于传输第二天线端口集合中天线端口的CSI-RS的RE；与203所指示的RE填充方式相同的RE用于传输第三天线端口集合中天线端口的CSI-RS的RE。在此需要说明的是，图4中仅示出了第n个RB与第n+1个RB这两个RB，在实际中，还可能包括更多个RB或更少个RB。
网络设备可以根据天线端口集合中的天线端口所对应的CSI-RS资源密度来配置该天线端口集合对应的码分复用CDM类型。通常情况下，可以使得CSI-RS资源密度低的天线端口的CDM长度高于CSI-RS资源密度高的天线端口的CDM长度，从而补偿由于CSI-RS资源密度低造成的CSI测量性能的损失。即，如果所述至少两个天线端口集合中第一天线端口集合中的天线端口所对应的时频资源密度高于所述至少两个天线端口集合中第二天线端口集合的天线端口所对应的时频资源密度，那么所述第一天线端口集合所对应CDM长度低于所述第二天线端口集合所对应的CDM长 度。
例如，对于如果所述天线端口集合中天线端口的CSI-RS资源密度为1RE/RB/port的天线端口集合，为了与R12、R13的UE共享，为该天线端口集合配置的CDM类型可以为CDM 2或4，以保证可以与R12、R13的UE共享；对于如果所述天线端口集合中天线端口的CSI-RS资源密度小于1RE/RB/port的port，为该天线端口集合配置的CDM类型可以为CDM4或8，从而使该天线端口集合中的天线端口获得更高的发射功率，以补偿CSI-RS资源密度降低带来的CSI测量的性能损失。由于这部分port不能与R12、R13的UE共享，因此可以采用CDM8来获得更高的发射功率。CSI-RS资源配置中的第一端口集合中的天线端口采用CDM4，第二、三端口集合中的天线端口采用CDM 8。例如图3所示，相同字母的RE代表根据相同CDM的RE组。其中，A与B的CDM长度相当，C与D的CDM长度相等，并且A与B的CDM长度小于于C与D的CDM长度。例如，A与B的可以为CDM4，而C与D则可以为CDM8。
步骤104，网络设备向终端设备发送CSI-RS资源配置信息，所述CSI-RS资源配置信息用于指示所述至少两个天线端口集合中每一个天线端口集合中的天线端口所对应的CSI-RS资源及CDM类型。
在各个天线端口集合中的天线端口所对应的CSI-RS资源及CDM类型都确定之后，网络设备可以向终端设备发送CSI-RS资源配置信息，所述CSI-RS资源配置信息用于指示所述至少两个天线端口集合中每一个天线端口集合中的天线端口所对应的CSI-RS资源及CDM类型。其中，所述天线端口集合中的天线端口所对应的CSI-RS资源可以包括所述用于传输所述天线端口集合中每一个天线端口的CSI-RS资源。
例如，如果所述天线端口集合包括第一天线端口集合与第二天线端口集合，那么所述CSI-RS资源配置信息可以用于指示：第一天线端口集合中的天线端口所对应的CSI-RS资源与第一天线端口集合所对应的CDM类型，以及第二天线端口集合中的天线端口所对应的CSI-RS资源与第二天线端口集合所对应的CDM类型。
步骤105，网络设备根据每一个所述天线端口集合所对应的CDM类型及CSI-RS资源发送所述天线端口集合中天线端口的CSI-RS。
在发送完所述CSI-RS资源配置信息之后，由于每一个天线端口所对应的CSI-RS资源都已经确定，因此所述网络设备根据每一个所述天线端口集合所对应的CDM类型及CSI-RS资源发送所述天线端口集合中天线端口的CSI-RS。具体的发送过程在此就不再赘述。
通过将CSI-RS资源中的天线端口划分为不同的天线端口集合，并为每个port集合中的CSI-RS资源配置采用不同的CDM type，可以为CSI-RS资源密度低的port集合中的port配置更高的CDM长度，以获得更高的发射功率，用于补偿CSI-RS资源密度降低带来的CSI测量的性能损失。可以使CSI-RS资源中不同密度的port的CSI测量性能相近，提高了CSI测量的精度，提高***下行吞吐量。
参见图4，为本申请信道状态信息参考信号接收方法一个实施例的流程示意图。如图4所示，所述方法可以包括：
步骤401，终端设备接收信道状态信息参考信号CSI-RS资源配置信息，所述CSI-RS资源配置信息用于指示所述至少两个天线端口集合中每一个天线端口集合中的天线端口所对应的CSI-RS资源及CDM类型。
终端设备可以首先接收CSI-RS资源配置信息，所述CSI-RS资源配置信息的相关内容可以参见前述实施例，在此就不再赘述。
步骤402，所述终端设备根据每一个所述天线端口集合中的天线端口所对应的CSI-RS资源及CDM类型接收每一个所述天线端口集合中天线端口的CSI-RS。
在接收到所述CSI-RS资源配置信息之后，可以根据所述CSI-RS资源配置信息确定每一个天线端口集合所对应的CDM类型及CSI-RS资源；进而确定每一个天线端口所对应的CDM类型及CSI-RS资源；在各个天线端口的CDM类型及CSI-RS资源都确定之后，终端设备根据各个天线端口的CDM类型及CSI-RS资源接收各个天线端口的CSI-RS。
采用本实施所提供的技术方案进行信道测量，可以使得各个天线端口的测量性能相似，从而可以使终端设备在进行信道测量时，信道测量的性能差距减小。
在各个所述天线端口的CSI-RS之后，终端设备还可以根据CSI-RS的接收结果进行信道测量。因此在步骤402之后，还可以包括：
步骤403，所述终端设备根据所述CSI-RS进行信道测量。
在通过信道测量生成测量结果之后，所述终端设备还可以将所述测量结果发送给所述网络设备，以便于网络设备根据所述测量结果进行下定调度等处理。
采用本实施所提供的技术方案进行信道测量，可以是信道测量结果更加准确。
参见图5，为申请网络设备一个实施例的结构示意图。所述网络设备可以用于执 行图1所对应的信道状态信息参考信号发送方法。如图5所示，所述网络设备可以包括：接收单元501，处理单元502，以及发送单元503。
其中，处理单元502，用于确定信道状态信息参考信号CSI-RS资源所对应天线端口数量；将所述天线端口数所对应的天线端口划分为至少两个天线端口集合；确定所述至少两个天线端口集合中每一个所述天线端口集合对应的码分复用CDM类型；发送单元503，用于向终端设备发送CSI-RS资源配置信息，所述CSI-RS资源配置信息用于指示所述至少两个天线端口集合中每一个天线端口集合中的天线端口所对应的CSI-RS资源及CDM类型；根据每一个所述天线端口所对应的CDM类型发送所述天线端口集合中天线端口的CSI-RS。
参见图6，为申请终端设备一个实施例的结构示意图。所述终端设备可以用于执行图4所对应的信道状态信息参考信号接收方法。如图6所示，所述终端设备可以包括：接收单元601，处理单元602，以及发送单元603。
其中，接收单元601，用于接收信道状态信息参考信号CSI-RS资源配置信息，所述CSI-RS资源配置信息用于指示所述至少两个天线端口集合中每一个天线端口集合中的天线端口所对应的CSI-RS资源及码分复用CDM类型；根据每一个所述天线端口集合中的天线端口所对应的CSI-RS资源及CDM类型接收每一个所述天线端口集合中天线端口的CSI-RS。
可选的，所述处理单元602，根据所述每一个所述天线端口集合中天线端口的CSI-RS进行信道测量。所发送单元603，用于将信道测量所得的测量结果发送给所述网络设备。
参见图7，为本申请网络设备另一个实施例的结构示意图。本实施例中的网络设备可以用于执行图1所示信道发送方法中的方法步骤。图如7所示，所述网络设备可以由处理器701、存储器702及收发器703等组成。
处理器701为网络设备的控制中心，利用各种接口和线路连接整个网络设备的各个部分，通过运行或执行存储在存储器内的软件程序和/或模块，以及调用存储在存储器内的数据，以执行网络设备的各种功能和/或处理数据。所述处理器可以是中央处理器(central processing unit，简称CPU)，网络处理器(network processor，简称NP)或者CPU和NP的组合。处理器还可以进一步包括硬件芯片。上述硬件芯片可以是专用集成电路(application-specific integrated circuit，简称ASIC)，可编程逻辑器件(programmable logic device，简称PLD)或其组合。上述PLD可以是复杂可编程 逻辑器件(complex programmable logic device，简称CPLD)，现场可编程逻辑门阵列(field-programmable gate array，简称FPGA)，通用阵列逻辑(generic array logic,简称GAL)或其任意组合。
所述存储器702可以包括易失性存储器(volatile memory)，例如随机存取内存(random access memory，简称RAM)；还可以包括非易失性存储器(non-volatile memory)，例如快闪存储器(flash memory)，硬盘(hard disk drive，简称HDD)或固态硬盘(solid-state drive，简称SSD)；存储器还可以包括上述种类的存储器的组合。所述存储器中可以存储有程序或代码，网元中的处理器通过执行所述程序或代码可以实现所述网元的功能。
在本申请实施例中，网络设备可以用于实现前述实施例中信道状态信息参考信号发送方法的各个步骤。其中，所述接收单元501所要实现的功能可以由所述终端设备的收发器703实现，或者由处理器701控制的收发器703实现；所述发送单元503所要实现的功能也可以由所述终端设备的收发器703实现，或者也可以由处理器701控制的所述收发器703实现；所述处理单元502所要实现的功能则可以由所述处理器701实现。
参见图8，为本申请终端设备另一个实施例的结构示意图。
参见图8为本申请终端设备一个实施例的结构示意图。所述终端设备可以是前述任意实施例中的终端设备，可以用于执行图4所示信道发送方法中的方法步骤。
如图8所示，所述终端设备可以包括处理器801、存储器802及收发器803，所述收发器803可以包括接收机8031、发射机8032与天线8033等部件。所述终端设备还可以包括更多或更少的部件，或者组合某些部件，或者不同的部件布置，本发明对此不进行限定。
处理器801为终端设备的控制中心，利用各种接口和线路连接整个终端设备的各个部分，通过运行或执行存储在存储器802内的软件程序和/或模块，以及调用存储在存储器内的数据，以执行终端设备的各种功能和/或处理数据。所述处理器801可以由集成电路(integrated circuit，简称IC)组成，例如可以由单颗封装的IC所组成，也可以由连接多颗相同功能或不同功能的封装IC而组成。举例来说，处理器可以仅包括中央处理器(central processing unit，简称CPU)，也可以是GPU、数字信号处理器(digital signal processor，简称DSP)、及收发器803中的控制芯片(例如基带芯片)的组合。在本申请实施方式中，CPU可以是单运算核心，也可以包括多运算核心。
所述收发器803用于建立通信信道，使终端设备通过所述通信信道以连接至接收设备，从而实现终端设备之间的数据传输。所述收发器803可以包括无线局域网(wireless local area network，简称WLAN)模块、蓝牙模块、基带(base band)模块等通信模块，以及所述通信模块对应的射频(radio frequency，简称RF)电路，用于进行无线局域网络通信、蓝牙通信、红外线通信及/或蜂窝式通信***通信，例如宽带码分多重接入(wideband code division multiple access，简称WCDMA)及/或高速下行封包存取(high speed downlink packet access，简称HSDPA)。所述收发器803用于控制终端设备中的各组件的通信，并且可以支持直接内存存取(direct memory access)。
在本申请的不同实施方式中，所述收发器803中的各种收发器803一般以集成电路芯片(integrated circuit chip)的形式出现，并可进行选择性组合，而不必包括所有收发器803及对应的天线组。例如，所述收发器803可以仅包括基带芯片、射频芯片以及相应的天线以在一个蜂窝通信***中提供通信功能。经由所述收发器803建立的无线通信连接，例如无线局域网接入或WCDMA接入，所述终端设备可以连接至蜂窝网(cellular network)或因特网(internet)。在本申请的一些可选实施方式中，所述收发器803中的通信模块，例如基带模块可以集成到处理器中，典型的如高通(Qualcomm)公司提供的APQ+MDM系列平台。射频电路用于信息收发或通话过程中接收和发送信号。例如，将网络设备的下行信息接收后，给处理器处理；另外，将设计上行的数据发送给网络设备。通常，所述射频电路包括用于执行这些功能的公知电路，包括但不限于天线***、射频收发机、一个或多个放大器、调谐器、一个或多个振荡器、数字信号处理器、编解码(codec)芯片组、用户身份模块(SIM)卡、存储器等等。此外，射频电路还可以通过无线通信与网络和其他设备通信。所述无线通信可以使用任一通信标准或协议，包括但不限于全球移动通讯***(global system of mobile communication，简称GSM)、通用分组无线服务(general packet radio service，简称gprs)、码分多址(code division multiple access，简称CDMA)、宽带码分多址(wideband code division multiple access，简称WCDMA)、高速上行行链路分组接入技术(high speed uplink packet access，简称HSUPA)、长期演进(long term evolution，简称LTE)、电子邮件、短消息服务(short messaging service，简称SMS)等。
在本申请实施例中，终端设备可以用于实现前述实施例中信道状态信息参考信号接收方法的各个方法步骤。所述接收单元601所要实现的功能可以由所述终端设备的收发器803实现，或者由处理器801控制的收发器803实现；所述发送单元603所要 实现的功能也可以由所述终端设备的收发器803实现，或者也可以由处理器801控制的所述收发器803实现；所述处理单元802所要实现的功能则可以由所述处理器601实现。
具体实现中，本发明还提供计算机存储介质，其中，该计算机存储介质可存储有程序，该程序执行时可包括本发明提供的信道状态信息参考信号发送方法或信道状态信息参考信号接收方法的各实施例中的部分或全部步骤。所述的存储介质可为磁碟、光盘、只读存储记忆体(英文：read-only memory，简称ROM)或随机存储记忆体(英文：random access memory，简称RAM)等。
本领域的技术人员可以清楚地了解到本发明实施例中的技术可借助软件加必需的通用硬件平台的方式来实现。基于这样的理解，本发明实施例中的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品可以存储在存储介质中，如ROM/RAM、磁碟、光盘等，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本发明各个实施例或者实施例的某些部分所述的方法。
本说明书中各个实施例之间相同相似的部分互相参见即可。尤其，对于网络设备及终端设备实施例而言，由于其基本相似于方法实施例，所以描述的比较简单，相关之处参见方法实施例中的说明即可。
以上所述的本发明实施方式并不构成对本发明保护范围的限定。

Claims (20)

  1. 一种信道状态信息参考信号发送方法，其特征在于，包括：
    网络设备确定信道状态信息参考信号CSI-RS资源所对应天线端口数量；
    所述网络设备将所述天线端口数所对应的天线端口划分为至少两个天线端口集合；
    所述网络设备确定所述至少两个天线端口集合中每一个所述天线端口集合中的天线端口对应的码分复用CDM类型；
    所述网络设备向终端设备发送CSI-RS资源配置信息，所述CSI-RS资源配置信息用于指示所述至少两个天线端口集合中每一个天线端口集合中的天线端口所对应的CSI-RS资源及CDM类型；
    所述网络设备根据每一个所述天线端口所对应的CDM类型及CSI-RS资源发送所述天线端口集合中天线端口的CSI-RS。
  2. 如权利要求1所述的方法，其特征在于，
    在所述至少两个天线端口集合中，不同天线端口集合中天线端口所对应的时频资源密度不同。
  3. 如权利要求2所述的方法，其特征在于，
    如果所述至少两个天线端口集合中第一天线端口集合中的天线端口所对应的时频资源密度高于所述至少两个天线端口集合中第二天线端口集合的天线端口所对应的时频资源密度，那么所述第一天线端口集合所对应CDM长度低于所述第二天线端口集合所对应的CDM长度。
  4. 如权利要求1至3任一项所述的方法，其特征在于，
    所述至少两个天线端口集合中每一个所述天线端口集合所包含的天线端口数为4或8。
  5. 如权利要求1至4任一项所述的方法，其特征在于，
    如果所述天线端口集合中天线端口的CSI-RS资源密度为1，则为所述天线端口集合配置的CDM长度为2或4；或者，
    如果所述天线端口集合中天线端口的CSI-RS资源密度小于1，则为所述天 线端口集合配置的CDM长度为4或8。
  6. 一种信道状态信息参考信号接收方法，其特征在于，包括：
    终端设备接收信道状态信息参考信号CSI-RS资源配置信息，所述CSI-RS资源配置信息用于指示所述至少两个天线端口集合中每一个天线端口集合中的天线端口所对应的CSI-RS资源及码分复用CDM类型；
    所述终端设备根据每一个所述天线端口集合中的天线端口所对应的CSI-RS资源及CDM类型接收每一个所述天线端口集合中天线端口的CSI-RS。
  7. 如权利要求6所述的方法，其特征在于，所述方法还包括：
    所述终端设备根据所述CSI-RS进行信道测量。
  8. 如权利要求6或7所述的方法，其特征在于，
    在所述至少两个天线端口集合中，不同天线端口集合中天线端口所对应的时频资源密度不同。
  9. 如权利要求8所述的方法，其特征在于，
    如果所述至少两个天线端口集合中第一天线端口集合中的天线端口所对应的时频资源密度高于所述至少两个天线端口集合中第二天线端口集合的天线端口所对应的时频资源密度，那么所述第一天线端口集合所对应CDM长度低于所述第二天线端口集合所对应的CDM长度。
  10. 如权利要求6至9任一项所述的方法，其特征在于，
    如果所述天线端口集合中天线端口的CSI-RS资源密度为1，则为所述天线端口集合配置的CDM长度为2或4；或者，
    如果所述天线端口集合中天线端口的CSI-RS资源密度小于1，则为所述天线端口集合配置的CDM长度为4或8。
  11. 一种网络设备，其特征在于，包括：
    处理单元，用于确定信道状态信息参考信号CSI-RS资源所对应天线端口数量；将所述天线端口数所对应的天线端口划分为至少两个天线端口集合；确定所述至少两个天线端口集合中每一个所述天线端口集合对应的码分复用CDM类 型；
    发送单元，用于向终端设备发送CSI-RS资源配置信息，所述CSI-RS资源配置信息用于指示所述至少两个天线端口集合中每一个天线端口集合中的天线端口所对应的CSI-RS资源及CDM类型；根据每一个所述天线端口所对应的CDM类型发送所述天线端口集合中天线端口的CSI-RS。
  12. 如权利要求11所述的网络设备，其特征在于，
    在所述至少两个天线端口集合中，不同天线端口集合中天线端口所对应的时频资源密度不同。
  13. 如权利要求12所述的网络设备，其特征在于，
    如果所述至少两个天线端口集合中第一天线端口集合中的天线端口所对应的时频资源密度高于所述至少两个天线端口集合中第二天线端口集合的天线端口所对应的时频资源密度，那么所述第一天线端口集合所对应CDM长度低于所述第二天线端口集合所对应的CDM长度。
  14. 如权利要求11至13任一项所述的网络设备，其特征在于，
    所述至少两个天线端口集合中每一个所述天线端口集合中每一个天线端口集合所包含的天线端口数为4或8。
  15. 如权利要求11至14任一项所述的网络设备，其特征在于，
    如果所述天线端口集合中天线端口的CSI-RS资源密度为1，则为所述天线端口集合配置的CDM长度为2或4；或者，
    如果所述天线端口集合中天线端口的CSI-RS资源密度小于1，则为所述天线端口集合配置的CDM长度为4或8。
  16. 一种终端设备，其特征在于，包括：
    接收单元，用于接收信道状态信息参考信号CSI-RS资源配置信息，所述CSI-RS资源配置信息用于指示所述至少两个天线端口集合中每一个天线端口集合中的天线端口所对应的CSI-RS资源及码分复用CDM类型；根据每一个所述天线端口集合中的天线端口所对应的CSI-RS资源及CDM类型接收每一个所述天线端口集合中天线端口的CSI-RS。
  17. 如权利要求16所述的终端设备，其特征在于，还包括：
    处理单元，用于根据所述每一个所述天线端口集合中天线端口的CSI-RS进行信道测量。
  18. 如权利要求16或17所述的终端设备，其特征在于，
    在所述至少两个天线端口集合中，不同天线端口集合中天线端口所对应的时频资源密度不同。
  19. 如权利要求18所述的终端设备，其特征在于，
    如果所述至少两个天线端口集合中第一天线端口集合中的天线端口所对应的时频资源密度高于所述至少两个天线端口集合中第二天线端口集合的天线端口所对应的时频资源密度，那么所述第一天线端口集合所对应CDM长度低于所述第二天线端口集合所对应的CDM长度。
  20. 如权利要求16至19任一项所述的终端设备，其特征在于，
    如果所述天线端口集合中天线端口的CSI-RS资源密度为1，则为所述天线端口集合配置的CDM长度为2或4；或者，
    如果所述天线端口集合中天线端口的CSI-RS资源密度小于1，则为所述天线端口集合配置的CDM长度为4或8。
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190273544A1 (en) * 2017-06-15 2019-09-05 Lg Electronics Inc. Method for reporting channel state information in wireless communication system and apparatus therefor
CN111757477A (zh) * 2019-03-28 2020-10-09 华为技术有限公司 一种上报能力的方法及用户设备
CN112398520A (zh) * 2019-08-16 2021-02-23 华为技术有限公司 发送信道状态信息的方法和相关设备
EP3780453A4 (en) * 2018-06-20 2021-05-05 Huawei Technologies Co., Ltd. CSI-RS SENDING PROCESS AND DEVICE, AND BASE STATION
CN114365439A (zh) * 2019-11-06 2022-04-15 Oppo广东移动通信有限公司 一种信息处理方法、终端设备
WO2022252963A1 (zh) * 2021-05-31 2022-12-08 华为技术有限公司 信道状态信息的测量方法和装置
WO2024000607A1 (en) * 2022-07-01 2024-01-04 Nokia Shanghai Bell Co., Ltd. Method and apparatus for reference signal port resource configuration
WO2024051810A1 (zh) * 2022-09-08 2024-03-14 华为技术有限公司 通信方法及相关装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022183378A1 (zh) * 2021-03-02 2022-09-09 Oppo广东移动通信有限公司 码本上报的方法、终端设备和网络设备
CN115016729A (zh) * 2022-05-19 2022-09-06 Oppo广东移动通信有限公司 存储信息的存储方法、装置、终端及存储介质

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102378114A (zh) * 2010-08-16 2012-03-14 ***通信集团公司 信道状态信息参考信号发送方法及装置、接收方法及装置
CN106559199A (zh) * 2015-09-25 2017-04-05 中兴通讯股份有限公司 一种配置信道状态测量导频的方法及装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102378114A (zh) * 2010-08-16 2012-03-14 ***通信集团公司 信道状态信息参考信号发送方法及装置、接收方法及装置
CN106559199A (zh) * 2015-09-25 2017-04-05 中兴通讯股份有限公司 一种配置信道状态测量导频的方法及装置

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
"CSI-RS design for {20,24,28,32} ports", 3GPP TSG RAN WG1 MEETING #86 , R1-166439, 26 August 2016 (2016-08-26), XP051125370 *
"Non-precoded CSI-RS design for up to 32 ports", 3GPP TSG-RAN WG1 #86, R1-166269, 26 August 2016 (2016-08-26), XP051125309 *
HUAWEI, HISILICON: "CSI-RS pattern design for up to 32 ports", 3GPP TSG RAN WG1 MEETING #86, R1-167137, 26 August 2016 (2016-08-26), XP051125734 *

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10630366B2 (en) * 2017-06-15 2020-04-21 Lg Electronics Inc. Method for reporting channel state information in wireless communication system and apparatus therefor
US11121755B2 (en) 2017-06-15 2021-09-14 Lg Electronics Inc. Method for reporting channel state information in wireless communication system and apparatus therefor
US20190273544A1 (en) * 2017-06-15 2019-09-05 Lg Electronics Inc. Method for reporting channel state information in wireless communication system and apparatus therefor
EP3780453A4 (en) * 2018-06-20 2021-05-05 Huawei Technologies Co., Ltd. CSI-RS SENDING PROCESS AND DEVICE, AND BASE STATION
US11483115B2 (en) 2018-06-20 2022-10-25 Huawei Technologies Co., Ltd. CSI-RS sending method and device, and base station
CN111757477A (zh) * 2019-03-28 2020-10-09 华为技术有限公司 一种上报能力的方法及用户设备
CN111757477B (zh) * 2019-03-28 2024-03-29 华为技术有限公司 一种上报能力的方法及用户设备
US11888565B2 (en) 2019-08-16 2024-01-30 Huawei Technologies Co., Ltd. Method for sending channel state information and related device
CN112398520A (zh) * 2019-08-16 2021-02-23 华为技术有限公司 发送信道状态信息的方法和相关设备
CN114365439A (zh) * 2019-11-06 2022-04-15 Oppo广东移动通信有限公司 一种信息处理方法、终端设备
CN114365439B (zh) * 2019-11-06 2024-03-05 Oppo广东移动通信有限公司 一种信息处理方法、终端设备
WO2022252963A1 (zh) * 2021-05-31 2022-12-08 华为技术有限公司 信道状态信息的测量方法和装置
WO2024000607A1 (en) * 2022-07-01 2024-01-04 Nokia Shanghai Bell Co., Ltd. Method and apparatus for reference signal port resource configuration
WO2024051810A1 (zh) * 2022-09-08 2024-03-14 华为技术有限公司 通信方法及相关装置

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