WO2013166932A1 - 参考信号接收功率的上报方法和设备 - Google Patents

参考信号接收功率的上报方法和设备 Download PDF

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Publication number
WO2013166932A1
WO2013166932A1 PCT/CN2013/075102 CN2013075102W WO2013166932A1 WO 2013166932 A1 WO2013166932 A1 WO 2013166932A1 CN 2013075102 W CN2013075102 W CN 2013075102W WO 2013166932 A1 WO2013166932 A1 WO 2013166932A1
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WO
WIPO (PCT)
Prior art keywords
csi
resource
rsrp
terminal
base station
Prior art date
Application number
PCT/CN2013/075102
Other languages
English (en)
French (fr)
Inventor
马瑞泽大卫
夏亮
周明宇
孙静原
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP13787546.4A priority Critical patent/EP2849481A4/en
Publication of WO2013166932A1 publication Critical patent/WO2013166932A1/zh
Priority to US14/538,571 priority patent/US9479306B2/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048Allocation of pilot signals, i.e. of signals known to the receiver
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613Diversity 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
    • H04B7/0615Diversity 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
    • H04B7/0619Diversity 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
    • H04B7/0621Feedback content
    • H04B7/0626Channel coefficients, e.g. channel state information [CSI]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signaling, i.e. of overhead other than pilot signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0057Physical resource allocation for CQI
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/10Scheduling measurement reports ; Arrangements for measurement reports
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0014Three-dimensional division
    • H04L5/0023Time-frequency-space
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0032Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
    • H04L5/0035Resource allocation in a cooperative multipoint environment

Definitions

  • the present application claims priority to the Chinese Patent Application No. 201210146587.8, filed on May 11, 2012, entitled “Reference Method and Apparatus for Reporting Received Power", the entire contents of which are incorporated herein by reference.
  • the present invention relates to communications technologies, and in particular, to a reporting method and apparatus for receiving power of reference signals.
  • CoMP Coordinated Multiple Point Transmission and Reception
  • one or more access points transmit data for a User Equipment (UE), or receive a message sent by a UE. data.
  • the UE needs to measure and report the channel state information (CSI) of one or more access points to the base station, and the reference signal used to measure the CSI is a channel state information reference signal (CSI).
  • CSI channel state information reference signal
  • CSI channel state information reference signal
  • the UE also needs to measure and report the reference signal receiving power (RSRP) to the base station, and the base station needs to determine the set of access points for providing the service according to the RSRP reported by the UE, or determine according to the RSRP reported by the UE.
  • the UE needs to report the set of access points of the CSI.
  • the UE measures the RSRP and reports the measured RSRP to each of the CSI-RS resources in the RSRP measurement set, and the reported overhead is large.
  • an embodiment of the present invention provides a method for reporting a reference signal received power, including: determining, by a base station, at least one first channel shape for reporting, by a terminal, a reference signal received power RSRP
  • the information reference signal CSI-RS resource, the first CSI-RS resource includes at least one antenna port group, and the antenna port group includes at least one antenna port;
  • the base station sends the first CSI-RS resource configuration information to the terminal, where the first CSI-RS resource configuration information carries the at least one first CSI-RS resource;
  • the base station receives an RSRP of each antenna port group included in the first CSI-RS resource reported by the terminal.
  • the embodiment of the present invention further provides a method for reporting a reference signal received power, including: receiving, by a terminal, a first channel state information reference signal CSI-RS resource configuration information sent by a base station, where the first CSI-RS resource configuration information is carried Transmitting, by the terminal, at least one first CSI-RS resource of the reference signal receiving power RSRP, where the first CSI-RS resource includes at least one antenna port group, and the antenna port group includes at least one antenna port;
  • the terminal measures, according to the first CSI-RS resource configuration information, an RSRP of each antenna port group included in the first CSI-RS resource;
  • the terminal reports the measured RSRP of each antenna port group included in the first CSI-RS resource to the base station.
  • the embodiment of the present invention further provides a base station, including:
  • a configuration unit configured to determine at least one first channel state information reference signal CSI-RS resource used by the terminal to report the reference signal received power RSRP, where the first CSI-RS resource includes at least one antenna port group, and the antenna port group Include at least one antenna port;
  • a transmitter configured to send the first CSI-RS resource configuration information to the terminal, where the first CSI-RS resource configuration information carries the at least one first CSI-RS resource;
  • a receiver configured to receive an RSRP of each antenna port group included in the first CSI-RS resource reported by the terminal.
  • the embodiment of the present invention further provides a terminal, including:
  • a receiver configured to receive a first channel state information reference signal CSI-RS resource configuration information that is sent by the base station, where the first CSI-RS resource configuration information carries at least one part of the terminal reference signal received power RSRP a CSI-RS resource, the first CSI-RS resource includes at least one antenna port group, and the antenna port group includes at least one antenna port;
  • a measuring unit configured to measure, according to the first CSI-RS resource configuration information, an RSRP of each antenna port group included in the first CSI-RS resource;
  • a transmitter configured to report, to the base station, the RSRP of each antenna port group included in the measured first CSI-RS resource.
  • the base station sends the CSI-RS resource configuration information of the antenna port group for reporting the RSRP to the terminal, so that the terminal measures the RSRP in each antenna port group. And reported to the base station to save the overhead of reporting RSRP.
  • the embodiment of the present invention further provides another method for reporting the received power of the reference signal, including:
  • the base station sends the second CSI-RS resource configuration information to the terminal, where the second CSI-RS resource configuration information carries the at least one second CSI-RS resource;
  • the embodiment of the present invention further provides a method for reporting the received power of the reference signal, including: the terminal receiving the second channel state information reference signal CSI-RS resource configuration information sent by the base station, where the second CSI-RS resource configuration information is carried The at least one second CSI-RS resource, the second CSI-RS resource is used by the terminal not to report the reference signal received power RSRP;
  • the terminal measures an RSRP of each of the fourth CSI-RS resources
  • the terminal sends 5 measurements of each fourth CSI-RS resource to the base station.
  • the embodiment of the present invention further provides a base station, including:
  • a configuration unit configured to determine at least one second channel state information reference signal CSI-RS resource used by the terminal not to report the reference signal received power RSRP;
  • a transmitter configured to send the second CSI-RS resource configuration information to the terminal, where the second CSI-RS resource configuration information carries the at least one second CSI-RS resource;
  • a receiver configured to receive an RSRP of each fourth CSI-RS resource reported by the terminal, where the fourth CSI-RS resource is used by the terminal according to the CSI-RS resource available to the terminal, and the second CSI-RS resources are determined.
  • the embodiment of the invention further provides a terminal, including:
  • a receiver configured to receive a second channel state information reference signal CSI-RS resource configuration information that is sent by the base station, where the second CSI-RS resource configuration information carries the at least one second CSI-RS resource, where the second The CSI-RS resource is used by the terminal not to report the reference signal received power RSRP;
  • a processing unit configured to determine, according to the CSI-RS resources available to the terminal and the second CSI-RS resource, a fourth CSI-RS resource used for reporting the RSRP;
  • a measuring unit configured to measure an RSRP of each of the fourth CSI-RS resources
  • a transmitter configured to report the measured RSRP of each fourth CSI-RS resource to the base station.
  • the base station sends the CSI-RS resource configuration information for the terminal not to the terminal, so that the terminal according to the available CSI-RS resources and not reporting
  • the CSI-RS resource of the RSRP is used to determine the CSI-RS resource for reporting the RSRP, and the RSRP is reported to the base station on the determined CSI-RS resource to save the overhead of reporting the RSRP.
  • FIG. 1 is a flowchart of an embodiment of a method for reporting a received power of a reference signal according to the present invention
  • FIG. 2 is a flow chart of still another embodiment of a method for reporting a received power of a reference signal according to the present invention
  • FIG. 3 is a flow chart of still another embodiment of a method for reporting a reference signal received power according to the present invention.
  • FIG. 4 is a flow chart of another embodiment of a method for reporting a reference signal received power according to the present invention.
  • FIG. 5 is a schematic diagram of another embodiment of a method for reporting a reference signal received power according to the present invention
  • FIG. 6 is a schematic diagram of another embodiment of a method for reporting a reference signal received power according to the present invention.
  • FIG. 7 is a schematic diagram of another embodiment of a method for reporting a reference signal received power according to the present invention.
  • FIG. 8 is a schematic structural diagram of an embodiment of a base station according to the present invention.
  • FIG. 9 is a schematic structural diagram of an embodiment of a terminal provided by the present invention.
  • FIG. 10 is a schematic structural diagram of still another embodiment of a base station according to the present invention.
  • FIG. 11 is a schematic structural diagram of still another embodiment of a terminal provided by the present invention.
  • FIG. 1 is a flowchart of an embodiment of a method for reporting a reference signal received power according to the present invention. As shown in FIG. 1, the method includes:
  • the base station determines at least one first channel state information reference signal CSI-RS resource used by the terminal to report the reference signal received power RSRP, where the first CSI-RS resource includes at least one antenna port group, and the antenna port group includes at least one Antenna port.
  • the base station sends the first CSI-RS resource configuration information to the terminal, where the first CSI-RS resource configuration information carries at least one first CSI-RS resource.
  • the base station receives the RSRP of each antenna port group included in the first CSI-RS resource reported by the terminal.
  • the executor of the above steps is a base station, and may be an Evolved Node B (eNB) or a Radio Network Controller (RNC).
  • eNB Evolved Node B
  • RNC Radio Network Controller
  • the RSRP may be received on all resource elements (Resource Elements, REs) carrying corresponding CSI-RSs in a certain Orthogonal Frequency Division Multiplexing (OFDM) symbol.
  • OFDM Orthogonal Frequency Division Multiplexing
  • the average of the signal power Can also refer to RSRP and Received Signal Strength (Received Signal Strength) Indicator, RSSI), the ratio is the Reference Signal Receiving Quality (RSRQ), where RSSI represents all signals received in the OFDM symbol (including pilot signals, data signals, neighboring interference signals) And the noise signal, etc.) The average value of the power.
  • RSRQ N*RSRP/RSSI, where N is the adjustment factor and RSSI can indicate that it is received within the OFDM symbol.
  • the average value of the power of all REs of the CSI-RS (including reference signal power, neighboring interference power, and noise power, etc.) RSRQ can also be the ratio of RSRP to interference noise power, and the interference noise power can include neighboring interference power. Noise power, etc.
  • the CSI-RS resources involved in this embodiment may refer to resources in a time domain, a frequency domain, or a subcarrier. Since each CSI-RS resource can contain 1, 2, 4, 8, or other number of antenna ports, each CSI-RS resource can be mapped to one or more access points (APs), each CSI Each antenna port of the RS resource can be mapped to one or more physical antennas of the AP. Therefore, the base station can map the relationship between the antenna port included in each CSI-RS resource and the physical antenna on the AP, and actual needs. And determining, by the terminal, at least one first CSI-RS resource, where the first CSI-RS resource includes at least one antenna port group, where the antenna port group includes at least one antenna port.
  • APs access points
  • the base station may map the antenna port to the CSI-RS resource on the physical antenna of the different AP that needs to report the RSRP as the first CSI-RS resource, and map the CSI-RS resource to the physical antenna of the same site.
  • the antenna port is an antenna port group, where the number of antenna ports included in each antenna port group may be the number of antenna ports on the physical antenna mapped to the same site in the CSI-RS resource; or the base station may also use the antenna port Mapping the CSI-RS resource on the physical antenna of the different APs that need to report the RSRP as the first CSI-RS resource, and the greatest common divisor of the number of antenna ports on the physical antenna mapped to the same site in the CSI-RS resource.
  • the number of antenna ports included in the antenna port group where the number of antenna port groups included in the CSI-RS resource is equal to the number of antenna ports included in the CSI-RS resource divided by the number of antenna ports included in the antenna port group.
  • the antenna port group is composed of one or more antenna ports of any one of the first CSI-RS resources.
  • An antenna port group may be included in the first CSI-RS resource determined by the base station.
  • all antenna ports in the first CSI-RS resource form an antenna port group;
  • the first CSI-RS resource may also include multiple antenna port groups.
  • one or several antenna ports in the first CSI-RS resource may form one antenna port group. For example, if the first CSI-RS resource includes four antenna ports, each of the two antenna ports may form one antenna port group, and the first CSI-RS resource may include two antenna port groups.
  • the base station divides the determined antenna port included in the first CSI-RS resource used for reporting the RSRP by the terminal into at least one antenna port group, so that the terminal can measure each The RSRP of the antenna port group is reported to the base station, and it is not necessary to measure the RSRP of each antenna port and report it to the base station, thereby saving the overhead of reporting RSRP.
  • the number of antenna ports included in each antenna port group can be determined by the base station.
  • the base station may notify the number of antenna ports included in the terminal antenna port group by using the first CSI-RS resource configuration information.
  • the base station may determine, according to the RSRP of each antenna port group, a set of access points that provide services for the terminal, or determine that the terminal needs to report A collection of CSI access points.
  • the base station determines, according to the RSRP of each antenna port group, a set of access points that provide services for the terminal, or determines that the set of access points for which the CSI needs to be reported by the terminal may be implemented by using an existing method, for example, the base station may
  • the access point corresponding to the largest RSRP reported by the terminal is used as the primary access point
  • the access point corresponding to the RSRP whose difference between the RSRP corresponding to the primary access point is within the threshold is used as the cooperative access point
  • the base station will The primary access point and the cooperative access point are used as a set of access points for providing services by the terminal or a set of access points for CSI to be reported by the terminal.
  • the base station sends the CSI-RS resource configuration information of the antenna port group for the terminal to report the RSRP to the terminal, so that the terminal measures the RSRP and reports it in each antenna port group. To the base station, the overhead of reporting RSRP is saved.
  • FIG. 2 is a flow chart of still another embodiment of a method for reporting a reference signal received power according to the present invention. As shown in FIG. 2, the method includes:
  • the terminal receives the first channel state information reference signal CSI-RS resource configuration information sent by the base station, where the first CSI-RS resource configuration information carries at least one first CSI-RS resource used by the terminal to report the reference signal received power RSRP.
  • the first CSI-RS resource includes at least one antenna port group, and the antenna port group includes at least one antenna port.
  • the terminal measures, according to the first CSI-RS resource configuration information, the first CSI-RS resource inclusion. RSRP for each antenna port group.
  • the terminal reports the RSRP of each antenna port group included in the measured first CS I-RS resource to the base station.
  • the base station may determine that the at least one first CSI-RS resource used for reporting the RSRP by the terminal includes at least one antenna port group according to the mapping relationship between the antenna port included in each CSI-RS resource and the physical antenna on the AP, and the actual needs.
  • the antenna port group includes at least one antenna port.
  • the terminal After receiving the first CSI-RS resource configuration information sent by the base station, the terminal may perform corresponding measurement according to the antenna port group included in the one or more first CSI-RS resources carried in the first CSI-RS resource configuration information. RSRP of the antenna port group.
  • the terminal may directly measure the RSRP of each antenna port group in each of the first CSI-RS resources, and report the RSRP of each antenna port group to the base station;
  • the terminal may measure an RSRP of each first CSI-RS resource and an RSRP of each antenna port group in the first CSI-RS resource, and calculate the first CSI-RS resource. Calculating a difference between the RSRP of each antenna port group of the first CSI-RS resource and the RSRP of each antenna port group of the first CSI-RS resource by the difference between the RSRP and the RSRP of each antenna port group in the first CSI-RS resource And reporting the difference between the RSRP of each of the first CSI-RS resources and the RSRP of each antenna port group in the first CSI-RS resource to the base station;
  • the terminal may further measure an RSRP of any at least one first CSI-RS resource and an RSRP of each antenna port group of all the first CSI-RS resources, and calculate any at least one first CSI-RS.
  • the difference between the RSRP of the resource and the RSRP of each antenna port group in the RSRP of all the first CSI-RS resources, and the RSRP of any at least one first CSI-RS resource and the RSRP of all the first CSI-RS resources The difference between the RSRPs of the antenna port groups is given to the base station.
  • the terminal may obtain the first CSI-RS resource according to the RSRP of each antenna port group.
  • the RSRP sum or average or weighted average of each antenna port group included in the antenna group and report the RSRP sum or average or weighted average of each antenna port group included in the first CSI-RS resource to the base station, thereby making the base station.
  • the terminal total received signal power or the average received signal power may be roughly determined according to the RSRP sum or average or weighted average of each antenna port group included in the first CSI-RS resource.
  • the terminal can detect the first CSI-RS resource that is determined by the base station to report the RSRP, and the manner of dividing the antenna port included in the first CSI-RS resource, so that the terminal can measure the antenna port group formed by the at least one antenna port.
  • the RSRP is connected to the base station without having to measure the RSRP of each antenna port and report it to the base station, thereby saving the overhead of reporting RSRP.
  • the terminal receives the CSI-RS resource configuration information of the antenna port group that is sent by the base station and is used by the terminal to report the RSRP, and measures the RSRP in each antenna port group and reports it to the base station. , to save the overhead of reporting RSRP.
  • the base station may further determine at least one third CSI-RS resource for the terminal to report the RSRP, where the third CSI-RS resource includes at least one antenna port, and send the third CSI-RS resource configuration information to the terminal, the third CSI
  • the RS resource configuration information carries at least one third CSI-RS resource.
  • the terminal After receiving the third CSI-RS resource configuration information sent by the base station, the terminal measures the RSRP of each third CSI-RS resource according to the third CSI-RS resource configuration information, and measures each third CSI-RS resource. The RSRP is reported to the base station.
  • the base station receives the RSRP of each third CSI-RS resource reported by the terminal, and determines, according to the RSRP of each third CSI-RS resource, the set of access points that provide services for the terminal, or determines the CSI that the terminal needs to report. In point collection.
  • the terminal may further obtain the RSRP of each third CSI-RS resource according to the RSRP of each third CSI-RS resource.
  • the sum or average or weighted average is reported, and the RSRP sum or average or weighted average of each third CSI-RS resource is reported to the base station.
  • the terminal may also measure and aggregate the sum or average or weighted average of the RSRP of each antenna port group in each first CSI-RS resource and the RSRP of each third CSI-RS resource.
  • the base station may send the first CSI-RS resource configuration information and the third CSI-RS resource configuration information used by the terminal to report the RSRP to the terminal, as another feasible implementation manner, as shown in FIG. 3 and FIG.
  • an implementation manner is provided in which the base station sends the second CSI-RS resource configuration information that the terminal does not report the RSRP to the terminal.
  • FIG. 3 is a flowchart of another embodiment of a method for reporting a reference signal received power according to the present invention. As shown in FIG. 3, the method includes: S301.
  • the base station determines at least one second channel state information reference signal CSI-RS resource used by the terminal not to report the reference signal received power RSRP.
  • the base station sends the second CSI-RS resource configuration information to the terminal, where the second CSI-RS resource configuration information carries at least one second CSI-RS resource.
  • the base station receives the RSRP of each fourth CSI-RS resource reported by the terminal, and the fourth CSI-RS resource is determined by the terminal according to the CSI-RS resource available to the terminal and the second CSI-RS resource.
  • the base station may determine, by the terminal, the at least one second CSI-RS resource that does not report the RSRP, and send the second CSI-RS resource configuration information to the terminal, where the second CSI-RS resource configuration information carries the at least one second CSI-RS resource. .
  • the base station may determine one or more of the multiple CSI-RS resources mapped to the same access point as the second CSI-RS resource. After receiving the second CSI-RS resource configuration information sent by the base station, the terminal can learn that the RSRP measurement is not performed on the at least one second CSI-RS resource in the second CSI-RS resource configuration information, thereby further saving the reported RSRP. Overhead.
  • the method for reporting the received power of the reference signal sends the CSI-RS resource configuration information for the terminal not reporting the RSRP to the terminal, so that the terminal according to the available CSI-RS resources and the CSI-RS resources that do not report the RSRP.
  • the CSI-RS resource for reporting the RSRP is determined, and the RSRP is reported to the base station on the determined CSI-RS resource to save the overhead of reporting the RSRP.
  • FIG. 4 is a flow chart of another embodiment of a method for reporting a reference signal received power according to the present invention. As shown in FIG. 4, the method includes:
  • the terminal receives the second channel state information reference signal CSI-RS resource configuration information that is sent by the base station, where the second CSI-RS resource configuration information carries at least one second CSI-RS resource, where the second CSI-RS resource is used for the terminal.
  • the reference signal received power RSRP is reported.
  • the terminal determines the fourth CSI-RS resource used for reporting the RSRP according to the CSI-RS resource and the second CSI-RS resource that are available to the terminal.
  • the terminal measures an RSRP of each fourth CSI-RS resource.
  • the terminal sends the measured RSRP of each fourth CSI-RS resource to the base station.
  • the terminal may be configured according to the CSI-RS resource available to the terminal, and at least one second included in the second CSI-RS resource configuration information.
  • the CSI-RS resource determines a fourth CSI-RS resource for reporting the RSRP to the base station.
  • the terminal may measure the RSRP on each fourth CSI-RS resource, and measure the RSRP on each fourth CSI-RS resource to the base station.
  • the process of measuring, by the terminal, the RSRP on each of the fourth CSI-RS resources is similar to the process of measuring the RSRP on the third CSI-RS resource by the terminal. For details, refer to the foregoing embodiment. Related description.
  • FIG. 5 is a schematic diagram of another embodiment of a method for reporting a reference signal received power according to the present invention. This embodiment describes a method for performing a reporting method of a reference signal received power in a specific implementation scenario.
  • the implementation scenario involves three APs, namely, AP0, AP1, and AP2, and these APs may be a cell, a node corresponding to a cell, a remote radio head (RRH), and a radio remote unit. (Radio Remote Unit, RRU) or Antenna Unit (AU).
  • Each AP includes two physical antennas.
  • four CSI-RS resources are involved, which are CSI-RS resources (resource) 0, CSI-RS resource1, CSI-RS resource2, and CSI-RS resource3.
  • the above CSI-RS resources include 2, 2, 2 and 4 antenna ports in sequence.
  • the four antenna ports included in the CSI-RS resource3 are mapped to the four physical antennas on AP1 and AP2, respectively.
  • the first CSI-RS resource includes CSI-RS resource 3, and the second CSI-RS resource includes CSI-RS resource 1 and CSI-RS resource 2, and the third CSI- The RS resource includes CSI-RS resource 0.
  • the CSI-RS resource 3 includes two antenna port groups. Since the CSI-RS resource 3 includes 4 antenna ports, each antenna port group includes 2 antenna ports.
  • the terminal may measure the RSRP of the antenna port group formed by each of the two antenna ports in the CSI-RS resource 3, and report the two antenna ports included in the CSI-RS resource 3 to the base station. Group of RSRP.
  • the terminal may also measure the RSRP of the CSI-RS resource 3 and the RSRP of the CSI-RS resource 3, respectively. The difference from the RSRP of each antenna port group in the CSI-RS resource 3 is reported to the base station.
  • the terminal may use the CSI-RS resource available to the terminal. And determining, by the second CSI-RS resource, a fourth CSI-RS resource for reporting the RSRP. At the same time, the terminal does not have to measure RSRP on CSI-RS resource 1 and CSI-RS resource 2. The terminal may measure the RSRP on the determined fourth CSI-RS resource and report it to the base station.
  • the terminal may measure the RSRP on the CSI-RS resource 0, and the CSI- The RSRP of RS resource 0 is reported to the base station.
  • the existing CSI-RS resource configuration information includes physical layer downlink sharing, whether it is CSI-RS resource configuration information for reporting CSI or various CSI-RS resource configuration information for reporting RSRP.
  • the second CSI-RS resource configuration information may not include a ratio of an EPRE of the PDSCH to an EPRE of the CSI-RS.
  • At least one of the first CSI-RS resource configuration information and the third CSI-RS resource configuration information may not include a ratio of an EPRE of the PDSCH to an EPRE of the CSI-RS.
  • the number of ports in the CSI-RS resource configuration information corresponding to the CSI-RS resource used by the base station to report the RSRP may be predefined by the base station.
  • FIG. 6 is a schematic diagram of still another embodiment of a method for reporting a reference signal received power according to the present invention. This embodiment describes a process for reporting a method for reporting received power of a reference signal in a specific implementation scenario.
  • CSI-RS resource 0 is a CSI-RS resource for measuring and reporting RSRP
  • CSI-RS resource 1 CSI-RS resource 2
  • CSI-RS resource 3 are CSIs for measuring and reporting CSI.
  • Each AP contains two physical antennas.
  • the two antenna ports included in CSI-RS resource 0 are mapped to physical antenna 0 on AP1 and AP2, respectively.
  • CSI-RS The four antenna ports included in resource 3 are mapped to the four physical antennas on AP1 and AP2, respectively.
  • each antenna port in the terminal CSI-RS resource 0 is used as an antenna port group, the terminal needs to measure and report the RSRP of each antenna port in the CSI-RS resource 0, and the base station according to the two The RSSI can select the CSI-RS resources that the terminal needs to measure and report the CSI in the CSI-RS resource 1, the CSI-RS resource 2, and the CSI-RS resource 3.
  • the terminal needs to measure and report the RSRP of the antenna port group, and the base station according to the RSRP of the antenna port group is in CSI-RS resource 1, CSI-RS.
  • the resource 2 and the CSI-RS resource 3 select the terminal to measure and report the CSI-RS resource of the CSI.
  • the reporting method of the received power of the reference signal may meet at least one of the following conditions:
  • the number of antenna ports included in the first CSI-RS resource determined by the base station is less than or equal to the number of antenna ports included in the CSI-RS resource used for reporting the CSI by the terminal, and is included in the first CSI-RS resource determined by the base station.
  • the maximum number of antenna ports is smaller than the maximum number of candidate antenna ports in the CSI-RS resource for reporting the CSI, and the set of the number of antenna ports included in the first CSI-RS resource determined by the base station is smaller than that for the terminal.
  • the minimum number of candidate antenna ports in the CSI-RS resource of the CSI is reported, and the minimum value of the period candidate value of the first CSI-RS resource determined by the base station is greater than the minimum value of the period candidate value of the CSI-RS resource used by the terminal to report the CSI.
  • the period of the first CSI-RS resource determined by the base station is greater than or equal to the period of the CSI-RS resource used for the terminal.
  • the reporting method of the reference signal received power provided by the embodiment may further meet the following conditions. at least one:
  • the number of antenna ports included in the first CSI-RS resource and the third CSI-RS resource determined by the base station is less than or equal to the number of antenna ports included in the CSI-RS resource used for reporting the CSI by the terminal, and the first CSI determined by the base station
  • the maximum value of the number of antenna ports included in the -RS resource and the third CSI-RS resource is smaller than the maximum value of the number of candidate antenna ports in the CS I-RS resource for reporting the CS I by the terminal, and the first CSI determined by the base station
  • the set of the number of antenna ports included in the -RS resource and the third CSI-RS resource is smaller than the set of candidate antenna ports in the CSI-RS resource for reporting the CSI by the terminal, the first CSI-RS resource determined by the base station, and the third
  • the minimum value of the period candidate value of the CSI-RS resource is greater than the minimum value of the period candidate value of the CSI-RS resource used for the terminal to report the CSI, and the first determined by the base station The period
  • the base station may configure a plurality of smaller port numbers for measuring and reporting the CSI-RS resources of the RSRP for the terminal, and the same one is used for the same.
  • the measurement and reporting of all the antenna ports included in the CSI-RS resource of the RSRP can be mapped to the same AP. This saves signaling overhead and enables more flexible RSRP measurement reporting.
  • the number of candidate antenna ports in the CSI-RS resource for the terminal to report the RSRP may be ⁇ 1, 2 ⁇ , and the number of candidate antenna ports in the CSI-RS resource used for reporting the CSI by the terminal is ⁇ 1, 2, 4, 8), at this time, only one bit is required to indicate the number of ports in the configuration information corresponding to the CSI-RS resource for the terminal to report the RSRP, thereby saving signaling overhead, and the base station can configure the number of the smaller antenna ports for the terminal.
  • all the antenna ports included in the same CSI-RS resource for measuring and reporting the RSRP can be mapped to the same AP, thereby implementing more flexible RSRP measurement reporting and lowering.
  • the overhead of the CSI-RS resource configuration information sent by the base station may be ⁇ 1, 2 ⁇ , and the number of candidate antenna ports in the CSI-RS resource used for reporting the CSI by the terminal is ⁇ 1, 2, 4, 8), at this time, only one bit is required to indicate the number of ports in the configuration information corresponding to the CSI-
  • FIG. 7 is a schematic diagram of another embodiment of a method for reporting a reference signal received power according to the present invention. This embodiment describes a method for performing a reporting method of a reference signal received power in a specific implementation scenario.
  • CSI-RS resource 0, CSI-RS resource 1 and CSI-RS resource 2 are CSI-RS resources for measuring and reporting RSRP, and CSI-RS resource 1, CSI-RS resources 2 and 3 are CSI-RS resources used to measure and report CSI.
  • the terminal only needs to measure and report the RSRP of CSI-RS resource 0, CSI-RS resource 1 and CSI-RS resource 2, and the base station can be in CSI-RS resource 0, CSI-RS according to the three RSRPs.
  • the resource 1 and the CSI-RS resource 2 select the terminal to measure and report the CSI-RS of the CSI.
  • the number of antenna ports included in the CSI-RS resource used for measuring and reporting the RSRP is six, and the number of antenna ports included in the CSI-RS resource used for measuring and reporting CSI is eight, that is, used for measurement and The number of antenna ports included in the CSI-RS resource for reporting the RSRP is smaller than the number of antenna ports included in the CSI-RS resource used for measuring and reporting the CSI.
  • FIG. 8 is a schematic structural diagram of an embodiment of a base station according to the present invention. As shown in FIG. 8, the base station includes: a configuration unit 1 1 , a transmitter 12 , and a receiver 13 ;
  • the configuration unit 1 1 is configured to determine at least one used by the terminal to report the reference signal received power RSRP
  • the first channel state information reference signal CSI-RS resource, the first CSI-RS resource includes at least one antenna port group, and the antenna port group includes at least one antenna port;
  • the transmitter 12 is configured to send the first CSI-RS resource configuration information to the terminal, where the first CSI-RS resource configuration information carries at least one first CSI-RS resource determined by the configuration unit 111;
  • the receiver 13 is configured to receive an RSRP of each antenna port group included in the first CSI-RS resource reported by the terminal.
  • the configuration unit 1 may be further configured to: determine at least one third CSI-RS resource used by the terminal to report the RSRP, where the third CSI-RS resource includes at least one antenna port;
  • the transmitter 12 is further configured to: send the third CSI-RS resource configuration information to the terminal, where the third CSI-RS resource configuration information carries at least one third CSI-RS resource;
  • the receiver 13 is further configured to: receive an RSRP of each third CSI-RS resource reported by the terminal.
  • the first CSI-RS resource configuration information does not include a ratio of the resource element EPRE of the physical layer downlink shared channel PDSCH to the EPRE of the CSI-RS.
  • At least one of the first CSI-RS resource configuration information and the third CSI-RS resource configuration information does not include a ratio of an EPRE of the PDSCH to an EPRE of the CSI-RS.
  • the configuration unit 1 1 can satisfy at least one of the following conditions:
  • the number of antenna ports included in the first CSI-RS resource determined by the configuration unit 1 1 is less than or equal to the number of antenna ports included in the CSI-RS resource used for reporting CSI by the terminal, and the first CSI determined by the configuration unit 11
  • the maximum value of the number of antenna ports included in the RS resource is smaller than the maximum number of candidate antenna ports in the CSI-RS resource used for the terminal to report CSI, and is included in the first CSI-RS resource determined by the configuration unit 11.
  • the set of the number of antenna ports is smaller than the set of the number of candidate antenna ports in the CSI-RS resource used for the terminal to report the CSI, and the minimum value of the period candidate value of the first CSI-RS resource determined by the configuration unit 11 is greater than that used by the terminal to report the CSI.
  • the minimum value of the period candidate value of the CSI-RS resource, and the period of the first CSI-RS resource determined by the configuration unit 11 is greater than or equal to the period of the CSI-RS resource for the CSI on the terminal.
  • the configuration unit 1 1 can also satisfy at least one of the following conditions:
  • the number of antenna ports included in the first CSI-RS resource and the third CSI-RS resource determined by the configuration unit 1 is less than or equal to the number of antenna ports included in the CSI-RS resource used for reporting CSI by the terminal, and the configuration unit 1
  • the maximum value of the number of included antenna ports in the first CSI-RS resource and the third CSI-RS resource is smaller than the number of candidate antenna ports in the CSI-RS resource used for the terminal to report CSI.
  • a maximum value, the set of the number of antenna ports included in the first CSI-RS resource and the third CSI-RS resource determined by the configuration unit 1 is smaller than the set of candidate antenna ports in the CSI-RS resource used for the terminal to report the CSI.
  • the minimum value of the period candidate value of the first CSI-RS resource and the third CSI-RS resource determined by the configuration unit 11 is greater than the minimum value of the period candidate value of the CSI-RS resource used for the terminal to report the CSI, and the configuration unit 1 1
  • the period of the determined first CSI-RS resource and the third CSI-RS resource is greater than or equal to a period of the CSI-RS resource used by the terminal to report the CSI.
  • the base station provided by the embodiment of the present invention corresponding to the reporting method of the reference signal receiving power provided by the embodiment of the present invention, is an apparatus for performing the reporting method of the reference signal receiving power provided by the present invention, and the reporting method for performing the reference signal receiving power
  • the process of the present invention refer to the method embodiments provided by the present invention, and details are not described herein again.
  • the base station provided by the embodiment of the present invention sends the CSI-RS resource configuration information of the antenna port group for the terminal to report the RSRP to the terminal, so that the terminal measures the RSRP in each antenna port group and reports it to the base station, thereby saving the reported RSRP. s expenses.
  • FIG. 9 is a schematic structural diagram of an embodiment of a terminal provided by the present invention. As shown in FIG. 9, the terminal includes: a receiver 21, a measuring unit 22, and a transmitter 23;
  • the receiver 21 is configured to receive a first channel state information reference signal CSI-RS resource configuration information that is sent by the base station, where the first CSI-RS resource configuration information carries at least one first CSI that is used by the terminal to report the reference signal received power RSRP.
  • An RS resource where the first CSI-RS resource includes at least one antenna port group number and an antenna port group, and the antenna port group includes at least one antenna port;
  • the measuring unit 22 is configured to measure, according to the first CSI-RS resource configuration information received by the receiver 21, an RSRP of each antenna port group included in the first CSI-RS resource;
  • the transmitter 23 is configured to report the RSRP of each antenna port group included in the first CSI-RS resource measured by the measurement unit 22 to the base station.
  • the measuring unit 22 is specifically configured to: directly measure the RSRP of each antenna port group, and the transmitter 23 is specifically configured to: send each antenna port group 5 to the base station;
  • the measuring unit 22 is specifically configured to: measure an RSRP of each first CSI-RS resource and an RSRP of each antenna port group in the first CSI-RS resource; the transmitter 23 is specifically configured to: the first CSI- The difference between the RSRP of the RS resource and the RSRP of each antenna port group in the first CSI-RS resource is sent to the base station, and the RSRP of the first CSI-RS resource includes each antenna port group in the first CSI-RS resource.
  • the measuring unit 22 is specifically configured to: measure an RSRP of any at least one first CSI-RS resource and an RSRP of each antenna port group of all the first CSI-RS resources;
  • the transmitter 23 is specifically configured to: The difference between the RSRP of a CSI-RS resource and the RSRP of each antenna port group in the RSRP of all the first CSI-RS resources is reported to the base station, and the RSRP of the first CSI-RS resource includes each of the first CSI-RS resources.
  • the average value of the RSRP of the antenna port group is specifically configured to: measure an RSRP of any at least one first CSI-RS resource and an RSRP of each antenna port group of all the first CSI-RS resources;
  • the transmitter 23 is specifically configured to: The difference between the RSRP of a CSI-RS resource and the RSRP of each antenna port group in the RSRP of all the first CSI-RS resources is reported to the base station, and the RSRP of the first
  • the measuring unit 22 is further configured to: obtain, according to the RSRP of each antenna port group, a sum of RSRPs of each antenna port group included in the first CSI-RS resource or each included in the first CSI-RS resource.
  • the transmitter 23 is further configured to: average or first the RSRP of each antenna port group included in the first CSI-RS resource or the RSRP of each antenna port group included in the first CSI-RS resource The weighted average of the RSRPs of each antenna port group included in the CSI-RS resource is reported to the base station.
  • the receiver 21 is further configured to: receive third CSI-RS resource configuration information that is sent by the base station, where the third CSI-RS resource configuration information carries at least one third CSI-RS resource that is used by the terminal to report the RSRP,
  • the third CSI-RS resource includes at least one antenna port;
  • the measuring unit 22 is further configured to: measure, according to the third CSI-RS resource configuration information, an RSRP of each third CSI-RS resource;
  • the transmitter 23 is further configured to: report the RSRP of each third CSI-RS resource measured by the measurement unit 22 to the base station.
  • the measuring unit 22 is further configured to: obtain, according to an RSRP of each third CSI-RS resource, an average value or a third of an RSRP of each third CSI-RS resource or an RSRP of a third CSI-RS resource. A weighted average of the RSRP of the CSI-RS resource;
  • the transmitter 23 is further configured to: report the average or weighted average of the RSRP sum of the third CSI-RS resources or the RSRP of the third CSI-RS resource to the base station.
  • the terminal provided by the embodiment of the present invention corresponding to the reporting method of the reference signal receiving power provided by the embodiment of the present invention, is an apparatus for performing the reporting method of the reference signal receiving power provided by the present invention, and the reporting method for performing the reference signal receiving power
  • the process of the present invention refer to the method embodiments provided by the present invention, and details are not described herein again.
  • the terminal provided by the embodiment of the present invention receives the RSRP sent by the base station and is used by the terminal to report the RSRP.
  • the CSI-RS resource configuration information of the antenna port group so that the terminal measures the RSRP in each antenna port group and reports it to the base station, thereby saving the overhead of reporting the RSRP.
  • FIG. 10 is a schematic structural diagram of an embodiment of a base station according to the present invention.
  • the base station includes: a configuration unit 31, a transmitter 32, and a receiver 33;
  • the configuration unit 31 is configured to determine at least one second channel state information reference signal CSI-RS resource used by the terminal not to report the reference signal received power RSRP;
  • the transmitter 32 is configured to send the second CSI-RS resource configuration information to the terminal, where the second CSI-RS resource configuration information carries at least one second CSI-RS resource;
  • the receiver 33 is configured to receive an RSRP of each fourth CSI-RS resource reported by the terminal, where the fourth CSI-RS resource is determined by the terminal according to the CSI-RS resource available to the terminal and the second CSI-RS resource.
  • the base station provided in this embodiment is related to the reporting method of the reference signal receiving power provided by the embodiment of the present invention, and is an apparatus for performing the reporting method of the reference signal receiving power provided by the present invention, which performs the reporting method of the reference signal receiving power.
  • the process reference may be made to the method embodiments provided by the present invention, and details are not described herein again.
  • the base station provided in this embodiment sends the CSI-RS resource configuration information for the terminal not reporting the RSRP to the terminal, so that the terminal determines, according to the available CSI-RS resources and the CSI-RS resources that do not report the RSRP, the RSRP-received RSRP.
  • the CSI-RS resource is used to measure the RSRP reported to the base station on the determined CSI-RS resource, thereby saving the overhead of reporting the RSRP.
  • FIG. 1 is a schematic structural diagram of an embodiment of a terminal provided by the present invention. As shown in FIG. 11, the terminal includes: a receiver 41, a processing unit 42, a measuring unit 43, and a transmitter 44;
  • the receiver 41 is configured to receive, by the base station, a second channel state information reference signal CSI-RS resource configuration information, where the second CSI-RS resource configuration information carries at least one second CSI-RS resource, where the second CSI-RS resource is used. Not reporting the reference signal received power RSRP at the terminal;
  • the processing unit 42 is configured to determine, according to the CSI-RS resources available to the terminal and the second CSI-RS resource, the fourth CSI-RS resource used for reporting the RSRP;
  • the measuring unit 43 is configured to measure an RSRP of each fourth CSI-RS resource
  • the transmitter 44 is configured to report the measured RSRP of each fourth CSI-RS resource to the base station.
  • the terminal provided in this embodiment corresponding to the reporting method of the reference signal receiving power provided by the embodiment of the present invention, is an apparatus for performing the reporting method of the reference signal receiving power provided by the present invention, and the method for reporting the reference signal receiving power is performed.
  • the process can be referred to the method embodiment provided by the present invention. I will not repeat them here.
  • the terminal receives the CSI-RS resource configuration information that is sent by the base station and does not report the RSRP, and determines the CSI-RS for reporting the RSRP according to the available CSI-RS resources and the CSI-RS resources that do not report the RSRP.
  • the resource is measured, and the RSRP is reported to the base station on the determined CSI-RS resource to save the overhead of reporting the RSRP.

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Abstract

本发明实施例提供一种参考信号接收功率的上报方法和设备。基站确定用于终端上报参考信号接收功率RSRP的至少一个第一信道状态信息参考信号CSI-RS资源,第一CSI-RS资源包含至少一个天线端口组,天线端口组包含至少一个天线端口;基站向终端发送第一CSI-RS资源配置信息,第一CSI-RS资源配置信息中携带至少一个第一CSI-RS资源;基站接收终端上报的第一CSI-RS资源包含的每个天线端口组的RSRP。本发明实施例实现节省上报RSRP的开销。

Description

参考信号接收功率的上报方法和设备
本申请要求了于 2012年 5月 11日提交中国专利局,申请号为 201210146587.8、 发明名称为 "参考信号接收功率的上报方法和设备" 的中国申请的优先权, 其全部内容通过引用结合在本申请中。 技术领域 本发明涉及通信技术, 尤其涉及一种参考信号接收功率的上报方法和设 备。 背景技术 在协同多点收发 ( Coordinated Multiple Point Transmission and Reception, CoMP ) ***中, 一个或多个接入点 (Access Point, AP )为用 户设备(User Equipment, UE )发送数据, 或接收 UE发送的数据。 UE需要 测量并向基站上报一个或多个接入点的信道状态信息 (Chan nel-State Information , CSI) , 用于测量 CSI的参考信号是信道状态信息参考信号 ( Channel-State Information Reference Signal, CSI-RS ) 。 通常情况下, UE还需要测量和向基站上报参考信号接收功率( Reference Signal Receiving Power, RSRP ) , 基站需要根据 UE上报的 RSRP为 UE确定提供服务的接入 点集合, 或者根据 UE上报的 RSRP确定 UE需要上报 CSI的接入点集合。 现有技术中, UE根据 RSRP测量集合中每一个 CSI-RS资源中的每一个天 线端口,分别测量 RSRP并向基站上报所测量的 RSRP,这种方法上报开销大。 发明内容 本发明实施例提供一种参考信号接收功率的上报方法和设备, 实现节省 上报 RSRP的开销。 一方面, 本发明实施例提供一种参考信号接收功率的上报方法, 包括: 基站确定用于终端上报参考信号接收功率 RSRP的至少一个第一信道状 态信息参考信号 CSI-RS资源, 所述第一 CSI-RS资源包含至少一个天线端口 组, 所述天线端口组包含至少一个天线端口;
所述基站向所述终端发送第一 CSI-RS资源配置信息, 所述第一 CSI-RS 资源配置信息中携带所述至少一个第一 CSI-RS资源;
所述基站接收所述终端上报的所述第一 CSI-RS资源包含的每个天线端口 组的 RSRP。
本发明实施例还提供一种参考信号接收功率的上报方法, 包括: 终端接收基站发送的第一信道状态信息参考信号 CSI-RS资源配置信息, 所述第一 CSI-RS资源配置信息中携带用于所述终端上报参考信号接收功率 RSRP的至少一个第一 CSI-RS资源, 所述第一 CSI-RS资源包含至少一个天线 端口组, 所述天线端口组包含至少一个天线端口;
所述终端根据所述第一 CSI-RS资源配置信息,测量所述第一 CSI-RS资源 包含的每个天线端口组的 RSRP;
所述终端将测量得到的所述第一 CSI-RS资源包含的每个天线端口组的 RSRP上报至所述基站。
另一方面, 本发明实施例还提供一种基站, 包括:
配置单元,用于确定用于终端上报参考信号接收功率 RSRP的至少一个第 一信道状态信息参考信号 CSI-RS资源,所述第一 CSI-RS资源包含至少一个天 线端口组, 所述天线端口组包含至少一个天线端口;
发送器, 用于向所述终端发送第一 CSI-RS资源配置信息, 所述第一 CSI-RS资源配置信息中携带所述至少一个第一 CSI-RS资源;
接收器, 用于接收所述终端上报的所述第一 CSI-RS资源包含的每个天线 端口组的 RSRP。
另一方面, 本发明实施例还提供一种终端, 包括:
接收器, 用于接收基站发送的第一信道状态信息参考信号 CSI-RS资源配 置信息, 所述第一 CSI-RS资源配置信息中携带用于所述终端上报参考信号接 收功率 RSRP的至少一个第一 CSI-RS资源, 所述第一 CSI-RS资源包含至少一 个天线端口组, 所述天线端口组包含至少一个天线端口;
测量单元, 用于根据所述第一 CSI-RS资源配置信息, 测量所述第一 CSI-RS资源包含的每个天线端口组的 RSRP; 发送器, 用于将测量得到的所述第一 CSI-RS资源包含的每个天线端口组 的 RSRP上报至所述基站。
本发明实施例提供的参考信号接收功率的上报方法和设备, 基站将用于 终端上报 RSRP的包括天线端口组的 CSI-RS资源配置信息发送给终端, 从而 使终端在每个天线端口组测量 RSRP并上报给基站, 实现节省上报 RSRP的开 销。
再一方面, 本发明实施例还提供另一种参考信号接收功率的上报方法, 包括:
基站确定用于终端不上报参考信号接收功率 RSRP的至少一个第二信道 状态信息参考信号 CSI-RS资源;
所述基站向所述终端发送第二 CSI-RS资源配置信息, 所述第二 CSI-RS 资源配置信息中携带所述至少一个第二 CSI-RS资源;
所述基站接收所述终端上报的每个第四 CSI-RS资源的 RSRP, 所述第四 CSI-RS资源由所述终端根据所述终端可用的 CS I-RS资源以及所述第二 CSI-RS资源确定。
本发明实施例还提供又一种参考信号接收功率的上报方法, 包括: 终端接收基站发送的第二信道状态信息参考信号 CSI-RS资源配置信息, 所述第二 CSI-RS资源配置信息中携带所述至少一个第二 CSI-RS资源,所述第 二 CSI-RS资源用于所述终端不上报参考信号接收功率 RSRP;
所述终端根据所述终端可用的 CSI-RS资源以及所述第二 CSI-RS资源确 定用于上报 RSRP的第四 CSI-RS资源;
所述终端测量每个所述第四 CSI-RS资源的 RSRP;
所述终端将测量得到的每个第四 CSI-RS资源的 5 上^艮给所述基站。 另一方面, 本发明实施例还提供一种基站, 包括:
配置单元,用于确定用于终端不上报参考信号接收功率 RSRP的至少一个 第二信道状态信息参考信号 CSI-RS资源;
发送器, 用于向所述终端发送第二 CSI-RS资源配置信息, 所述第二 CSI-RS资源配置信息中携带所述至少一个第二 CSI-RS资源;
接收器, 用于接收所述终端上报的每个第四 CSI-RS资源的 RSRP, 所述 第四 CSI-RS资源由所述终端根据所述终端可用的 CSI-RS资源以及所述第二 CSI-RS资源确定。
本发明实施例还提供一种终端, 包括:
接收器, 用于接收基站发送的第二信道状态信息参考信号 CSI-RS资源配 置信息, 所述第二 CSI-RS资源配置信息中携带所述至少一个第二 CSI-RS资 源, 所述第二 CSI-RS资源用于所述终端不上报参考信号接收功率 RSRP;
处理单元, 用于根据所述终端可用的 CSI-RS资源以及所述第二 CSI-RS 资源确定用于上报 RSRP的第四 CSI-RS资源;
测量单元, 用于测量每个所述第四 CSI-RS资源的 RSRP;
发送器, 用于将测量得到的每个第四 CSI-RS资源的 RSRP上报给所述基 站。
本发明实施例提供的参考信号接收功率的上报方法和设备, 基站将用于 终端不上¾1 81^的 CSI-RS资源配置信息发送给终端, 从而使终端根据可用的 CSI-RS资源以及不上报 RSRP的 CSI-RS资源确定用于上报 RSRP的 CSI-RS资 源, 并在确定的 CSI-RS资源上测量 RSRP上报给基站, 实现节省上报 RSRP的 开销。 附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案, 下面将对实 施例或现有技术描述中所需要使用的附图作简单地介绍, 显而易见地, 下面 描述中的附图是本发明的一些实施例, 对于本领域普通技术人员来讲, 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为本发明提供的参考信号接收功率的上报方法一个实施例的流程图; 图 2为本发明提供的参考信号接收功率的上报方法又一个实施例的流程 图;
图 3为本发明提供的参考信号接收功率的上报方法又一个实施例的流程 图;
图 4为本发明提供的参考信号接收功率的上报方法另一个实施例的流程 图;
图 5为本发明提供的参考信号接收功率的上报方法另一个实施例的示意 图; 图 6为本发明提供的参考信号接收功率的上报方法另一个实施例的示意 图;
图 7为本发明提供的参考信号接收功率的上报方法另一个实施例的示意 图;
图 8为本发明提供的基站一个实施例的结构示意图;
图 9为本发明提供的终端一个实施例的结构示意图;
图 10为本发明提供的基站又一个实施例的结构示意图;
图 11为本发明提供的终端又一个实施例的结构示意图。
具体实施方式
为使本发明实施例的目的、 技术方案和优点更加清楚, 下面将结合本发 明实施例中的附图, 对本发明实施例中的技术方案进行清楚、 完整地描述, 显然, 所描述的实施例是本发明一部分实施例, 而不是全部的实施例。 基于 本发明中的实施例, 本领域普通技术人员在没有做出创造性劳动前提下所获 得的所有其他实施例, 都属于本发明保护的范围。
图 1为本发明提供的参考信号接收功率的上报方法一个实施例的流程图, 如图 1所示, 该方法包括:
5101、 基站确定用于终端上报参考信号接收功率 RSRP的至少一个第一 信道状态信息参考信号 CSI-RS资源,该第一 CSI-RS资源包含至少一个天线端 口组, 所述天线端口组包含至少一个天线端口。
5102、 基站向终端发送第一 CSI-RS资源配置信息, 第一 CSI-RS资源配 置信息中携带至少一个第一 CSI-RS资源。
5103、 基站接收终端上报的第一 CSI-RS资源包含的每个天线端口组的 RSRP。
以上步骤的执行主体为基站, 具体可以是演进型基站 ( Evolved Node B, eNB ) , 也可以是无线网络控制器( Radio Network Controller, RNC )等。
本发明实施例涉及的 RSRP , 可以是指在某两个正交频分复用 ( Orthogonal Frequency Division Multiplexing, OFDM )符号内 载相应的 CSI-RS的所有资源单元(Resource Element, RE )上接收到的信号功率的 平均值。 也可以指 RSRP与接收信号强度指标 (Received Signal Strength Indicator, RSSI ) 的比值, 该比值为参考信号接收质量 ( (Reference Signal Receiving Quality, RSRQ ) 。 其中, RSSI表示在 OFDM符号内接收到的所 有信号 (包括导频信号、 数据信号、 邻区干扰信号和噪音信号等) 功率的平 均值。 由于 RSRP和 RSSI两者测量所基于的带宽可能不同, 因此, RSRQ = N*RSRP/RSSI , 其中, N为调整系数, RSSI可以表示在 OFDM符号内接收到 的 CSI-RS的所有 RE的功率(包括参考信号功率、邻区干扰功率和噪音功率等) 的平均值。 RSRQ也可以是 RSRP和干扰噪声功率的比值, 干扰噪声功率可以 包含邻区干扰功率, 噪音功率等。
本实施例中涉及的 CSI-RS资源, 可以指时域、 频域或子载波等维度的资 源。 由于每个 CSI-RS资源可以包含 1、 2、 4、 8或其它数目个天线端口, 每个 CSI-RS资源可以映射到一个或多个接入点 (Access Point, AP ) 上, 每个 CSI-RS资源的每个天线端口可以映射到 AP的一个或多个物理天线上, 因此, 基站可以根据各 CSI-RS资源所包含的天线端口与 AP上物理天线的映射关系, 以及实际需要等因素,确定用于终端上报 RSRP的至少一个第一 CSI-RS资源, 该第一 CSI-RS资源中包含至少一个天线端口组, 所述天线端口组包含至少一 个天线端口。
具体的, 基站可以将天线端口映射到需要上报 RSRP的不同 AP的物理天 线上的 CSI-RS资源作为第一 CSI-RS资源, 将该 CSI-RS资源中映射到同一站 址的物理天线上的天线端口作为一个天线端口组, 其中, 每个天线端口组包 含的天线端口数目可以是该 CSI-RS资源中映射到同一站址的物理天线上的天 线端口数目; 或者, 基站也可以将天线端口映射到需要上报 RSRP的不同 AP 的物理天线上的 CSI-RS资源作为第一 CSI-RS资源, 将该 CSI-RS资源中映射 到同一站址的物理天线上的天线端口数的最大公约数作为天线端口组包含的 天线端口数目, 其中, 该 CSI-RS资源包含的天线端口组数目等于该 CSI-RS 资源包含的天线端口数目除以天线端口组包含的天线端口数目。 上述仅提供 了几种基站确定第一 CSI-RS资源中包含的至少一个天线端口组的几种可行的 实施方式, 但并不以此作为对本发明实施例的限制。
天线端口组由任意一个第一 CSI-RS资源中的一个或多个天线端口组成。 基站所确定的第一 CSI-RS资源中可以包括一个天线端口组, 在这种实施场景 下, 第一 CSI-RS资源中的所有天线端口组成一个天线端口组; 基站所确定的 第一 CSI-RS资源中也可以包括多个天线端口组, 在这种实施场景下, 第一 CSI-RS资源中的一个或几个天线端口可以组成一个天线端口组。 例如: 第一 CSI-RS资源包括 4个天线端口, 则每两个天线端口可以组成一个天线端口组, 则第一 CSI-RS资源中可以包括 2个天线端口组。
本发明实施例提供的参考信号接收功率的上报方法中, 基站将所确定的 用于终端上报 RSRP的第一 CSI-RS资源中包含的天线端口划分为至少一个天 线端口组,使得终端能够测量每个天线端口组的 RSRP并上报给基站, 而不必 测量每个天线端口的 RSRP并上报给基站, 从而节省了上报 RSRP的开销。
其中, 每个天线端口组包含的天线端口的数量可以由基站确定。 基站可 以通过第一 CSI-RS资源配置信息通知终端天线端口组中包含的天线端口数 。
基站接收到终端上报的第一 CSI-RS资源包含的每个天线端口组的 RSRP 后, 可以根据每个天线端口组的 RSRP, 确定为终端提供服务的接入点集合, 或者, 确定终端需要上报的 CSI的接入点集合。 其中, 基站根据每个天线端口 组的 RSRP, 确定为终端提供服务的接入点集合, 或者, 确定终端需要上报的 CSI的接入点集合可以釆用现有方法来实现, 例如: 基站可以将终端上报的最 大 RSRP对应的接入点作为主接入点, 将与主接入点对应的 RSRP的差值在门 限值之内的 RSRP对应的接入点作为协作接入点,基站将所述主接入点和所述 协作接入点作为终端提供服务的接入点集合或终端需要上报的 CSI的接入点 集合。
本发明实施例提供的参考信号接收功率的上报方法, 基站将用于终端上 报 RSRP的包括天线端口组的 CSI-RS资源配置信息发送给终端, 从而使终端 在每个天线端口组测量 RSRP并上报给基站, 实现节省上报 RSRP的开销。
图 2为本发明提供的参考信号接收功率的上报方法又一个实施例的流程 图, 如图 2所示, 该方法包括:
S201、终端接收基站发送的第一信道状态信息参考信号 CSI-RS资源配置 信息, 第一 CSI-RS资源配置信息中携带用于终端上报参考信号接收功率 RSRP的至少一个第一 CSI-RS资源, 第一 CSI-RS资源包含至少一个天线端口 组, 所述天线端口组包含至少一个天线端口。
S202、 终端根据第一 CSI-RS资源配置信息, 测量第一 CSI-RS资源包含 的每个天线端口组的 RSRP。
S203、 终端将测量得到的第一 CS I-RS资源包含的每个天线端口组的 RSRP上报至基站。
以上步骤的执行主体为 U E。
基站可以根据各 CSI-RS资源所包含的天线端口与 AP上物理天线的映射 关系,以及实际需要等因素,确定用于终端上报 RSRP的至少一个第一 CSI-RS 资源中包含至少一个天线端口组, 所述天线端口组包含至少一个天线端口。
终端接收到基站发送的第一 CSI-RS资源配置信息后, 可以根据第一 CSI-RS资源配置信息中所携带的一个或多个第一 CSI-RS资源所包含的天线 端口组, 对应测量每个天线端口组的 RSRP。
作为一种可行的实施方式, 终端可以直接测量每个第一 CSI-RS资源中的 每个天线端口组的 RSRP, 并将每个天线端口组的 RSRP上报给基站;
作为另一种可行的实施方式, 终端可以测量每个第一 C S I - R S资源的 RSRP和该第一 CSI-RS资源中的每个天线端口组的 RSRP , 并计算该第一 CSI-RS资源的 RSRP与该第一 CSI-RS资源中每个天线端口组的 RSRP的差 值, 计算每个第一 CSI-RS资源的 RSRP与该第一 CSI-RS资源中每个天线端口 组的 RSRP的差值, 再将每个第一 CSI-RS资源的 RSRP与该第一 CSI-RS资源 中每个天线端口组的 RSRP的差值上报给基站;
作为另一种可行的实施方式, 终端还可以测量任意至少一个第一 CSI-RS 资源的 RSRP和所有第一 CSI-RS资源中每个天线端口组的 RSRP, 计算任意 至少一个第一 CSI-RS资源的 RSRP与所有第一 CSI-RS资源的 RSRP中每个天 线端口组的 RSRP的差值, 并将任意至少一个第一 CSI-RS资源的 RSRP与所 有第一 CSI-RS资源的 RSRP中每个天线端口组的 RSRP的差值上 ^艮给基站。
进一步的, 终端根据第一 CSI-RS资源配置信息, 测量第一 CSI-RS资源包 含的每个天线端口组的 RSRP之后, 还可以根据每个天线端口组的 RSRP, 获 得第一 CSI-RS资源中包含的各天线端口组的 RSRP总和或平均值或加权平均 值, 并将第一 CSI-RS资源中包含的各天线端口组的 RSRP总和或平均值或加 权平均值上报至基站, 从而使基站可以根据第一 CSI-RS资源中包含的各天线 端口组的 RSRP总和或平均值或加权平均值,大致确定终端总接收信号功率或 平均接收信号功率。 由于终端能够获知基站确定的用于上报 RSRP的第一 CSI-RS资源, 以及 第一 CSI-RS资源中包含的天线端口的划分方式, 使得终端能够测量由至少一 个天线端口构成的天线端口组的 RSRP并上 4艮给基站,而不必测量每个天线端 口的 RSRP并上报给基站, 从而节省了上报 RSRP的开销。
本发明实施例提供的参考信号接收功率的上报方法, 终端接收到基站发 送的用于终端上报 RSRP的包含天线端口组的 CSI-RS资源配置信息, 在每个 天线端口组测量 RSRP并上报给基站, 实现节省上报 RSRP的开销。 在图 1和图 2提供的实施例的基础上, 进一步的,
基站还可以确定用于终端上报 RSRP的至少一个第三 CSI-RS资源, 该第 三 CSI-RS资源中包括至少一个天线端口,并向终端发送第三 CSI-RS资源配置 信息, 该第三 CSI-RS资源配置信息中携带至少一个第三 CSI-RS资源。 终端接 收基站发送的第三 CSI-RS资源配置信息后, 根据第三 CSI-RS资源配置信息, 测量每个第三 CSI-RS资源的 RSRP, 并将测量得到的每个第三 CSI-RS资源的 RSRP上报至基站。 基站接收终端上报的每个第三 CSI-RS资源的 RSRP, 可 以根据每个第三 CSI-RS资源的 RSRP, 确定为终端提供服务的接入点集合, 或者, 确定终端需要上报的 CSI的接入点集合。
可选的,终端根据第三 CSI-RS资源配置信息测量每个第三 CSI-RS资源的 RSRP之后, 还可以根据每个第三 CSI-RS资源的 RSRP获得各第三 CSI-RS资 源的 RSRP总和或平均值或加权平均值, 并将各第三 CSI-RS资源的 RSRP总 和或平均值或加权平均值上报至基站。
可选的, 终端也可以测量并上 ^艮每个第一 CSI-RS资源中的每个天线端口 组的 RSRP与每个第三 CSI-RS资源的 RSRP的总和或平均值或加权平均值。 上述实施例中, 基站可以将用于终端上报 RSRP的第一 CSI-RS资源配置 信息和第三 CSI-RS资源配置信息发送给终端, 作为另一种可行的实施方式, 图 3和图 4所示的实施例中, 提供了基站将用于终端不上报 RSRP的第二 CSI-RS资源配置信息发送给终端的实施方式。
图 3为本发明提供的参考信号接收功率的上报方法另一个实施例的流程 图, 如图 3所示, 该方法包括: 5301、 基站确定用于终端不上报参考信号接收功率 RSRP的至少一个第 二信道状态信息参考信号 CSI-RS资源。
5302、 基站向终端发送第二 CSI-RS资源配置信息, 第二 CSI-RS资源配 置信息中携带至少一个第二 CSI-RS资源。
5303、基站接收终端上报的每个第四 CSI-RS资源的 RSRP,第四 CSI-RS 资源由终端根据终端可用的 CSI-RS资源以及第二 CSI-RS资源确定。
基站可以确定用于终端不上报 RSRP的至少一个第二 CSI-RS资源, 并向 终端发送第二 CSI-RS资源配置信息,第二 CSI-RS资源配置信息中携带至少一 个第二 CSI-RS资源。
其中, 基站可以将映射到相同接入点的多个 CSI-RS资源中的一个或多个 确定为第二 CSI-RS资源。终端接收到基站发送的第二 CSI-RS资源配置信息之 后,能够获知在第二 CSI-RS资源配置信息中携带至少一个第二 CSI-RS资源上 不进行 RSRP测量, 从而进一步节省了上报 RSRP的开销。
本实施例提供的参考信号接收功率的上报方法,将用于终端不上报 RSRP 的 CSI-RS资源配置信息发送给终端,从而使终端根据可用的 CSI-RS资源以及 不上报 RSRP的 CSI-RS资源确定用于上报 RSRP的 CSI-RS资源, 并在确定的 CSI-RS资源上测量 RSRP上报给基站, 实现节省上报 RSRP的开销。
图 4为本发明提供的参考信号接收功率的上报方法另一个实施例的流程 图, 如图 4所示, 该方法包括:
S401、终端接收基站发送的第二信道状态信息参考信号 CSI-RS资源配置 信息, 第二 CSI-RS资源配置信息中携带至少一个第二 CSI-RS资源, 第二 CSI-RS资源用于终端不上报参考信号接收功率 RSRP。
5402、 终端根据终端可用的 CSI-RS资源以及第二 CSI-RS资源确定用于 上报 RSRP的第四 CSI-RS资源。
5403、 终端测量每个第四 CSI-RS资源的 RSRP。
5404、 终端将测量得到的每个第四 CSI-RS资源的 RSRP上 ^艮给基站。 终端接收到基站发送的用于终端不上报 RSRP的第二 CSI-RS资源配置信 息之后, 终端可以根据终端可用的 CSI-RS资源, 以及第二 CSI-RS资源配置信 息中包括的至少一个第二 CSI-RS资源, 确定用于向基站上报 RSRP的第四 CSI-RS资源。 终端确定用于上报 RSRP的第四 CSI-RS资源后, 可以在每个第四 CSI-RS 资源上测量 RSRP, 并将每个第四 CSI-RS资源上测量得到 RSRP上 ^艮给基站。 其中, 终端测量并上 ^艮每个第四 CSI-RS资源上的 RSRP的过程与终端测量并 上才艮每个第三 CSI-RS资源上的 RSRP的过程类似, 具体可参见前面实施例中 的相关描述。
本实施例提供的参考信号接收功率的上报方法, 接收基站发送的用于终 端不上报 RSRP的 CSI-RS资源配置信息, 根据可用的 CSI-RS资源以及不上报 RSRP的 CSI-RS资源确定用于上报 RSRP的 CSI-RS资源,并在确定的 CSI-RS 资源上测量 RSRP上报给基站, 实现节省上报 RSRP的开销。 图 5为本发明提供的参考信号接收功率的上报方法另一个实施例的示意 图, 本实施例以一个具体的实施场景对参考信号接收功率的上报方法的执行 过程进行描述。
如图 5所示, 该实施场景中涉及 3个 AP, 分别为 AP0、 AP1和 AP2, 这些 AP可以是小区,小区对应的节点,远端射频头(Remote Radio Head , RRH ) , 射频拉远单元 ( Radio Remote Unit, RRU )或天线单元(Antenna Unit, AU ) 等。 每个 AP包含两个物理天线, 该实施场景中涉及 4个 CSI-RS资源, 分别为 CSI-RS资源 ( resource ) 0、 CSI-RS resourcel、 CSI-RS resource2和 CSI-RS resource3。 上述 CSI-RS资源依次包括 2、 2、 2和 4个天线端口。 CSI-RS resource3中包括的 4个天线端口分别映射到 AP1和 AP2上的 4个物理天线上。
本实施例提供的参考信号接收功率的上报方法中, 第一 CSI-RS资源包括 CSI-RS resource 3 , 第二 CSI-RS资源包括 CSI-RS resource 1和 CSI-RS resource 2, 第三 CSI-RS资源包括 CSI-RS resource 0。
基站向终端发送的第一 CSI-RS资源配置信息的实施场景下, 其中, 第一 CSI-RS资源配置信息中包括: CSI-RS resource 3, CSI-RS resource 3中包 含 2个天线端口组。 由于 CSI-RS resource 3中包括 4个天线端口, 因此, 每个 天线端口组中包括 2个天线端口。 终端接收到第一 CSI-RS配置信息后, 可以 测量 CSI-RS resource 3中每 2个天线端口所构成的天线端口组的 RSRP,并向 基站上报 CSI-RS resource 3中包含的两个天线端口组的 RSRP。 或者, 终端 还可以分别测量 CSI-RS resource 3的 RSRP以及 CSI-RS resource 3的 RSRP 与 CSI-RS resource 3中每个天线端口组的 RSRP的差值并上报给基站。
基站向终端发送的第二 CSI-RS资源配置信息的实施场景下, 其中, 第二 CSI-RS资源包括 CSI-RS resource 1和 CSI-RS resource 2, 则终端可以根据 终端可用的 CSI-RS资源以及第二 CSI-RS资源确定用于上报 RSRP的第四 CSI-RS资源。 既, 终端可以不必在 CSI-RS resource 1和 CSI-RS resource 2 上测量 RSRP。 终端可以在确定的第四 CSI-RS资源上测量 RSRP并上报给基 站。
基站向终端发送的第三 CSI-RS资源配置信息的实施场景下, 其中, 第三 CSI-RS资源包括 CSI-RS resource 0, 则终端可以在 CSI-RS resource 0上测 量 RSRP, 并将 CSI-RS resource 0的 RSRP上报给基站。
需要说明的是, 现有的 CSI-RS资源配置信息, 无论是用于上报 CSI的 CSI-RS资源配置信息或是用于上报 RSRP的各种 CSI-RS资源配置信息中均 包括物理层下行共享信道 ( Physical Downlink Shared Channel , PDSCH ) 的每资源元素功率 (Energy Per Resource Element, EPRE ) 与 CSI-RS的 EPRE的比值, 而该比值通常用于测量 CSI。 因此, 为了节省信令开销, 本发 明实施例中, 用于上报 RSRP的第一 CSI-RS资源配置信息可以不包含该 PDSCH的 EPRE与 CSI-RS的 EPRE的比值。
或者, 第二 CSI-RS资源配置信息可以不包含该 PDSCH的 EPRE与 CSI-RS的 EPRE的比值。
或者,第一 CSI-RS资源配置信息和第三 CSI-RS资源配置信息中的至少一 个可以不包含该 PDSCH的 EPRE与 CSI-RS的 EPRE的比值。
另夕卜, 基站确定的用于终端上报 RSRP的 CSI-RS资源对应的 CSI-RS资源 配置信息中的端口数目可以由基站预先定义的。
图 6为本发明提供的参考信号接收功率的上报方法又一个实施例的示意 图, 本实施例以一个具体的实施场景对参考信号接收功率的上报方法的执行 过程进行描述。
如图 6所示, CSI-RS resource 0为用于测量和上报 RSRP的 CSI-RS资源, CSI-RS resource 1、 CSI-RS resource 2和 CSI-RS resource 3为用于测量和 上报 CSI的 CSI-RS资源。每个 AP包含两个物理天线。 CSI-RS resource 0中所 包含的 2个天线端口分别映射到 AP1和 AP2上的物理天线 0上, CSI-RS resource 3中所包含的 4个天线端口分别映射到 AP1和 AP2上的 4个物理天线 上。 在这种实施场景下, 若终端 CSI-RS resource 0中的每个天线端口作为一 个天线端口组, 则终端需要测量和上报 CSI-RS resource 0中每个天线端口的 RSRP,基站根据这 2个 RSRP可以在 CSI-RS resource 1、 CSI-RS resource 2 和 CSI-RS resource 3中选择终端需要测量和上报 CSI的 CSI-RS资源。 若终端 CSI-RS resource 0中的 2个天线端口作为一个天线端口组, 则终端需要测量 和上报该天线端口组的 RSRP , 基站根据该天线端口组的 RSRP在 CSI-RS resource 1、 CSI-RS resource 2和 CSI-RS resource 3中选择终端需要测量和 上报 CSI的 CSI-RS资源。
可选的, 在基站确定第一 CSI-RS资源的实施场景下, 本实施例提供的参 考信号接收功率的上报方法可以满足下述条件中的至少一个:
基站确定的第一 CSI-RS资源中所包含的天线端口数目小于或等于用于终 端上报 CSI的 CSI-RS资源中所包含的天线端口数目, 基站确定的第一 CSI-RS 资源中的所包括的天线端口数目的最大值小于用于终端上报 CSI的 CSI-RS资 源中的候选天线端口数目的最大值, 基站确定的第一 CSI-RS资源中的所包括 的天线端口数目集合小于用于终端上报 CSI的 CSI-RS资源中的候选天线端口 数目集合, 基站确定的第一 CSI-RS资源的周期候选值的最小值大于用于终端 上报 CSI的 CSI-RS资源的周期候选值的最小值, 基站确定的第一 CSI-RS资源 的周期大于或等于用于终端上^艮051的 CSI-RS资源的周期。
可选的,在基站确定第一 CSI-RS资源的基础上还进一步确定第三 CSI-RS 资源的实施场景下, 本实施例提供的参考信号接收功率的上报方法还可以满 足下述条件中的至少一个:
基站确定的第一 CSI-RS资源和第三 CSI-RS资源中所包含的天线端口数 目小于或等于用于终端上报 CSI的 CSI-RS资源中所包含的天线端口数目, 基 站确定的第一 CSI-RS资源和第三 CSI-RS资源中的所包含的天线端口数目的 最大值小于用于终端上报 CS I的 CS I- RS资源中的候选天线端口数目的最大 值,基站确定的第一 CSI-RS资源和第三 CSI-RS资源中的所包含的天线端口数 目集合小于用于终端上报 CSI的 CSI-RS资源中的候选天线端口数目集合, 基 站确定的第一 CSI-RS资源和第三 CSI-RS资源的周期候选值的最小值大于用 于终端上报 CSI的 CSI-RS资源的周期候选值的最小值, 基站确定的第一 CSI-RS资源和第三 CSI-RS资源的周期大于或等于用于终端上报 CSI的 CSI-RS资源的周期。
当用于测量和上报 CSI的 CSI-RS资源映射在多个 AP上时, 基站可以为终 端配置多个更小端口数目的用于测量和上报 RSRP的 CSI-RS资源, 此时同一 个用于测量和上报 RSRP的 CSI-RS资源包含的所有天线端口可以映射到同一 个 AP上, 从而实现节省信令开销, 实现更为灵活的 RSRP测量上报。 例如: 用于终端上报 RSRP的 CSI-RS资源中的候选天线端口数目可以是 {1 , 2}, 用 于终端上报 CSI的 CSI-RS资源中的候选天线端口数目为 {1 , 2, 4, 8}, 此时, 用于终端上报 RSRP的 CSI-RS资源对应的配置信息中只需要 1个比特指示端 口数目, 从而节省信令开销, 同时基站可以为终端配置多个更小天线端口数 目的用于测量和上报 RSRP的 CSI-RS资源, 此时同一个用于测量和上报 RSRP的 CSI-RS资源包含的所有天线端口可以映射到同一个 AP上, 从而实现 更灵活的 RSRP测量上报, 降低基站发送 CSI-RS资源配置信息的开销。
图 7为本发明提供的参考信号接收功率的上报方法另一个实施例的示意 图, 本实施例以一个具体的实施场景对参考信号接收功率的上报方法的执行 过程进行描述。
如图 7所示, CSI-RS resource 0、 CSI-RS resource 1和 CSI-RS resource 2是用于测量和上报 RSRP的 CSI-RS资源, CSI-RS resource 1、 CSI-RS resource 2和 3是用于测量和上报 CSI的 CSI-RS资源。 在这种实施场景下, 终 端只需要测量和上报 CSI-RS resource 0、 CSI-RS resource 1和 CSI-RS resource 2的 RSRP , 基站根据这 3个 RSRP可以在 CSI-RS resource 0、 CSI-RS resource 1和 CSI-RS resource 2中选择终端需要测量和上报 CSI的 CSI-RS。
其中, 用于测量和上报 RSRP的 CSI-RS资源中包含的天线端口数目为 6 个, 用于测量和上报 CSI的 CSI-RS资源中包含的天线端口数目为 8个, 即, 用 于测量和上报 RSRP的 CSI-RS资源中包含的天线端口数目小于用于测量和上 报 CSI的 CSI-RS资源中包含的天线端口数目。
图 8为本发明提供的基站一个实施例的结构示意图, 如图 8所示, 该基站 包括: 配置单元 1 1、 发送器 12和接收器 13;
配置单元 1 1 ,用于确定用于终端上报参考信号接收功率 RSRP的至少一个 第一信道状态信息参考信号 CSI-RS资源,该第一 CSI-RS资源包含至少一个天 线端口组, 天线端口组包含至少一个天线端口;
发送器 12,用于向终端发送第一 CSI-RS资源配置信息,第一 CSI-RS资源 配置信息中携带配置单元 1 1确定的至少一个第一 CSI-RS资源;
接收器 13, 用于接收终端上报的第一 CSI-RS资源包含的每个天线端口组 的 RSRP。
可选的, 配置单元 1 1还可以用于: 确定用于终端上报 RSRP的至少一个第 三 CSI-RS资源, 第三 CSI-RS资源包括至少一个天线端口;
相应的, 发送器 12还可以用于: 向终端发送第三 CSI-RS资源配置信息, 第三 CSI-RS资源配置信息中携带至少一个第三 CSI-RS资源;
接收器 13还可以用于: 接收终端上报的每个第三 CSI-RS资源的 RSRP。 可选的, 第一 CSI-RS资源配置信息不含有物理层下行共享信道 PDSCH 的每资源元素功率 EPRE与 CSI-RS的 EPRE的比值。
可选的,第一 CSI-RS资源配置信息和第三 CSI-RS资源配置信息中的至少 一个不含有 PDSCH的 EPRE与 CSI-RS的 EPRE的比值。
可选的, 配置单元 1 1可以满足下述条件中的至少一个:
配置单元 1 1确定的第一 CSI-RS资源中所包含的天线端口数目小于或等 于用于终端上报 CSI的 CSI-RS资源中所包含的天线端口数目, 配置单元 1 1确 定的第一 CSI-RS资源中的所包括的天线端口数目的最大值小于用于终端上报 CSI的 CSI-RS资源中的候选天线端口数目的最大值, 配置单元 1 1确定的第一 CSI-RS资源中的所包括的天线端口数目集合小于用于终端上报 CSI的 CSI-RS资源中的候选天线端口数目集合,配置单元 1 1确定的第一 CSI-RS资源 的周期候选值的最小值大于用于终端上报 CSI的 CSI-RS资源的周期候选值的 最小值, 配置单元 1 1确定的第一 CSI-RS资源的周期大于或等于用于终端上才艮 CSI的 CSI-RS资源的周期。
可选的, 配置单元 1 1还可以满足下述条件中的至少一个:
配置单元 1 1确定的第一 CSI-RS资源和第三 CSI-RS资源中所包含的天线 端口数目小于或等于用于终端上报 CSI的 CSI-RS资源中所包含的天线端口数 目,配置单元 1 1确定的第一 CSI-RS资源和第三 CSI-RS资源中的所包含的天线 端口数目的最大值小于用于终端上报 CSI的 CSI-RS资源中的候选天线端口数 目的最大值,配置单元 1 1确定的第一 CSI-RS资源和第三 CSI-RS资源中的所包 含的天线端口数目集合小于用于终端上报 CSI的 CSI-RS资源中的候选天线端 口数目集合,配置单元 1 1确定的第一 CSI-RS资源和第三 CSI-RS资源的周期候 选值的最小值大于用于终端上报 CSI的 CSI-RS资源的周期候选值的最小值, 配置单元 1 1确定的第一 CSI-RS资源和第三 CSI-RS资源的周期大于或等于用 于终端上报 CSI的 CSI-RS资源的周期。
本发明实施例提供的基站, 与本发明实施例提供的参考信号接收功率的 上报方法相对应, 为本发明提供的参考信号接收功率的上报方法的执行设备, 其执行参考信号接收功率的上报方法的过程可参见本发明提供的方法实施 例, 在此不再赘述。
本发明实施例提供的基站, 将用于终端上报 RSRP的包括天线端口组的 CSI-RS资源配置信息发送给终端, 从而使终端在每个天线端口组测量 RSRP 并上报给基站, 实现节省上报 RSRP的开销。
图 9为本发明提供的终端一个实施例的结构示意图, 如图 9所示, 该终端 包括: 接收器 21、 测量单元 22和发送器 23;
接收器 21 , 用于接收基站发送的第一信道状态信息参考信号 CSI-RS资源 配置信息, 第一 CSI-RS资源配置信息中携带用于终端上报参考信号接收功率 RSRP的至少一个第一 CSI-RS资源, 第一 CSI-RS资源包含至少一个天线端口 组数目以及天线端口组, 天线端口组包含至少一个天线端口;
测量单元 22, 用于根据接收器 21接收的第一 CSI-RS资源配置信息, 测量 第一 CSI-RS资源包含的每个天线端口组的 RSRP;
发送器 23, 用于将测量单元 22测量得到的第一 CSI-RS资源包含的每个天 线端口组的 RSRP上报至基站。
可选的, 测量单元 22具体用于: 直接测量每个天线端口组的 RSRP, 发送 器 23具体用于: 将每个天线端口组的 5 上^艮给基站;
或者, 测量单元 22具体用于: 测量每个第一 CSI-RS资源的 RSRP和该第 一 CSI-RS资源中每个天线端口组的 RSRP; 发送器 23具体用于: 将该第一 CSI-RS资源的 RSRP与该第一 CSI-RS资源中每个天线端口组的 RSRP的差值 上才艮给基站, 第一 CSI-RS资源的 RSRP包括第一 CSI-RS资源中每个天线端口 组的 RSRP的平均值; 或者,测量单元 22具体用于:测量任意至少一个第一 CSI-RS资源的 RSRP 和所有第一 CSI-RS资源中每个天线端口组的 RSRP; 发送器 23具体用于: 将 任意至少一个第一 CSI-RS资源的 RSRP与所有第一 CSI-RS资源的 RSRP中每 个天线端口组的 RSRP的差值上报给基站, 第一 CSI-RS资源的 RSRP包括第 一 CSI-RS资源中每个天线端口组的 RSRP的平均值。
可选的, 测量单元 22还可以用于: 根据每个天线端口组的 RSRP, 获得第 一 CSI-RS资源中包含的各天线端口组的 RSRP的总和或第一 CSI-RS资源中 包含的各天线端口组的 RSRP的平均值或第一 CSI-RS资源中包含的各天线端 口组的 RSRP的加权平均值;
相应的, 发送器 23还可以用于: 将第一 CSI-RS资源中包含的各天线端口 组的 RSRP总和或第一 CSI-RS资源中包含的各天线端口组的 RSRP的平均值 或第一 CSI-RS资源中包含的各天线端口组的 RSRP的加权平均值上报至基 站。
可选的, 接收器 21还可以用于: 接收基站发送的第三 CSI-RS资源配置信 息, 第三 CSI-RS资源配置信息中携带用于终端上报 RSRP的至少一个第三 CSI-RS资源, 第三 CSI-RS资源包括至少一个天线端口;
相应的, 测量单元 22还可以用于: 根据第三 CSI-RS资源配置信息, 测量 每个第三 CSI-RS资源的 RSRP;
相应的, 发送器 23还可以用于: 将测量单元 22测量得到的每个第三 CSI-RS资源的 RSRP上报至基站。
可选的, 测量单元 22还可以用于: 根据每个第三 CSI-RS资源的 RSRP, 获得各第三 CSI-RS资源的 RSRP总和或第三 CSI-RS资源的 RSRP的平均值或 第三 CSI-RS资源的 RSRP的加权平均值;
相应的, 发送器 23还可以用于: 将各第三 CSI-RS资源的 RSRP总和或第 三 CSI-RS资源的 RSRP的平均值或加权平均值上报至基站。
本发明实施例提供的终端, 与本发明实施例提供的参考信号接收功率的 上报方法相对应, 为本发明提供的参考信号接收功率的上报方法的执行设备, 其执行参考信号接收功率的上报方法的过程可参见本发明提供的方法实施 例, 在此不再赘述。
本发明实施例提供的终端,接收到基站发送的用于终端上报 RSRP的包括 天线端口组的 CSI-RS资源配置信息, 从而使终端在每个天线端口组测量 RSRP并上报给基站, 实现节省上报 RSRP的开销。
图 10为本发明提供的基站一个实施例的结构示意图, 如图 10所示, 该基 站包括: 配置单元 31、 发送器 32和接收器 33;
配置单元 31 ,用于确定用于终端不上报参考信号接收功率 RSRP的至少一 个第二信道状态信息参考信号 CSI-RS资源;
发送器 32,用于向终端发送第二 CSI-RS资源配置信息,第二 CSI-RS资源 配置信息中携带至少一个第二 CSI-RS资源;
接收器 33 , 用于接收终端上报的每个第四 CSI-RS资源的 RSRP , 第四 CSI-RS资源由终端根据终端可用的 CSI-RS资源以及第二 CSI-RS资源确定。
本实施例提供的基站, 与本发明实施例提供的参考信号接收功率的上报 方法相对应, 为本发明提供的参考信号接收功率的上报方法的执行设备, 其 执行参考信号接收功率的上报方法的过程可参见本发明提供的方法实施例, 在此不再赘述。
本实施例提供的基站, 将用于终端不上报 RSRP的 CSI-RS资源配置信息 发送给终端, 从而使终端根据可用的 CSI-RS资源以及不上报 RSRP的 CSI-RS 资源确定用于上报 RSRP的 CSI-RS资源, 并在确定的 CSI-RS资源上测量 RSRP上报给基站, 实现节省上报 RSRP的开销。
图 1 1为本发明提供的终端一个实施例的结构示意图, 如图 1 1所示, 该终 端包括: 接收器 41、 处理单元 42、 测量单元 43和发送器 44;
接收器 41 , 用于接收基站发送的第二信道状态信息参考信号 CSI-RS资源 配置信息, 第二 CSI-RS资源配置信息中携带至少一个第二 CSI-RS资源, 第二 CSI-RS资源用于终端不上报参考信号接收功率 RSRP;
处理单元 42,用于根据终端可用的 CSI-RS资源以及第二 CSI-RS资源确定 用于上报 RSRP的第四 CSI-RS资源;
测量单元 43, 用于测量每个第四 CSI-RS资源的 RSRP;
发送器 44,用于将测量得到的每个第四 CSI-RS资源的 RSRP上报给基站。 本实施例提供的终端, 与本发明实施例提供的参考信号接收功率的上报 方法相对应, 为本发明提供的参考信号接收功率的上报方法的执行设备, 其 执行参考信号接收功率的上报方法的过程可参见本发明提供的方法实施例, 在此不再赘述。
本实施例提供的终端, 接收基站发送的用于终端不上报 RSRP的 CSI-RS 资源配置信息, 根据可用的 CSI-RS资源以及不上报 RSRP的 CSI-RS资源确定 用于上报 RSRP的 CSI-RS资源, 并在确定的 CSI-RS资源上测量 RSRP上报给 基站, 实现节省上报 RSRP的开销。
本领域普通技术人员可以理解: 实现上述方法实施例的全部或部分步骤 可以通过程序指令相关的硬件来完成, 前述的程序可以存储于一计算机可读 取存储介质中, 该程序在执行时, 执行包括上述方法实施例的步骤; 而前述 的存储介质包括: ROM、 RAM, 磁碟或者光盘等各种可以存储程序代码的介
最后应说明的是: 以上各实施例仅用以说明本发明的技术方案, 而非对 其限制; 尽管参照前述各实施例对本发明进行了详细的说明, 本领域的普通 技术人员应当理解: 其依然可以对前述各实施例所记载的技术方案进行修改, 或者对其中部分或者全部技术特征进行等同替换; 而这些修改或者替换, 并 不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims

权 利 要求 书
1、 一种参考信号接收功率的上报方法, 其特征在于, 包括:
基站确定用于终端上报参考信号接收功率 RSRP的至少一个第一信道状态 信息参考信号 CSI-RS资源, 所述第一 CSI-RS资源包含至少一个天线端口组, 所 述天线端口组包含至少一个天线端口;
所述基站向所述终端发送第一 CSI-RS资源配置信息,所述第一 CSI-RS资源 配置信息中携带所述至少一个第一 CSI-RS资源;
所述基站接收所述终端上报的所述第一 CSI-RS资源包含的每个天线端口组 的 RSRP。
2、 根据权利要求 1所述的方法, 其特征在于, 还包括:
所述基站确定用于所述终端上报 RSRP的至少一个第三 CSI-RS资源, 所述 第三 CSI-RS资源包括至少一个天线端口;
所述基站向所述终端发送第三 CSI-RS资源配置信息,所述第三 CSI-RS资源 配置信息中携带所述至少一个第三 CSI-RS资源;
所述基站接收所述终端上报的每个所述第三 CSI-RS资源的 RSRP。
3、 根据权利要求 1或 2所述的方法, 其特征在于, 所述第一 CSI-RS资源配 置信息不含有物理层下行共享信道 PDSCH的每资源元素功率 EPRE与 CSI-RS 的 EPRE的比值。
4、 根据权利要求 2所述的方法, 其特征在于, 所述第一 CSI-RS资源配置信 息和所述第三 CSI-RS资源配置信息中的至少一个不含有 PDSCH的 EPRE与 CSI-RS的 EPRE的比值。
5、 根据权利要求 1 -4任一权利要求所述的方法, 其特征在于, 所述方法满 足下述条件中的至少一个:
所述基站确定的所述第一 CSI-RS资源中所包含的天线端口数目小于或等于 用于所述终端上报 CSI的 CSI-RS资源中所包含的天线端口数目, 所述基站确定 的所述第一 CSI-RS资源中的所包括的天线端口数目的最大值小于用于所述终端 上报 CSI的 CSI-RS资源中的候选天线端口数目的最大值, 所述基站确定的所述 第一 CSI-RS资源中的所包括的天线端口数目集合小于用于所述终端上报 CSI的 CSI-RS资源中的候选天线端口数目集合,所述基站确定的所述第一 CSI-RS资源 的周期候选值的最小值大于用于所述终端上报 CSI的 CSI-RS资源的周期候选值 的最小值, 所述基站确定的所述第一 CSI-RS资源的周期大于或等于用于所述终 端上报 CS I的 CS I-RS资源的周期。
6、 根据权利要求 2或 4所述的方法, 其特征在于, 所述方法满足下述条件中 的至少一个:
所述基站确定的所述第一 CSI-RS资源和第三 CSI-RS资源中所包含的天线 端口数目小于或等于用于所述终端上报 CSI的 CSI-RS资源中所包含的天线端口 数目,所述基站确定的所述第一 CSI-RS资源和第三 CSI-RS资源中的所包含的天 线端口数目的最大值小于用于所述终端上报 CSI的 CSI-RS资源中的候选天线端 口数目的最大值,所述基站确定的所述第一 CSI-RS资源和第三 CSI-RS资源中的 所包含的天线端口数目集合小于用于所述终端上报 CSI的 CSI-RS资源中的候选 天线端口数目集合,所述基站确定的所述第一 CSI-RS资源和第三 CSI-RS资源的 周期候选值的最小值大于用于所述终端上报 CSI的 CSI-RS资源的周期候选值的 最小值,所述基站确定的所述第一 CSI-RS资源和第三 CSI-RS资源的周期大于或 等于用于所述终端上报 CSI的 CSI-RS资源的周期。
7、 一种参考信号接收功率的上报方法, 其特征在于, 包括:
终端接收基站发送的第一信道状态信息参考信号 CSI-RS资源配置信息, 所 述第一 CSI-RS资源配置信息中携带用于所述终端上报参考信号接收功率 RSRP 的至少一个第一 CSI-RS资源, 所述第一 CSI-RS资源包含至少一个天线端口组, 所述天线端口组包含至少一个天线端口;
所述终端根据所述第一 CSI-RS资源配置信息,测量所述第一 CSI-RS资源包 含的每个天线端口组的 RSRP;
所述终端将测量得到的所述第一 CSI-RS资源包含的每个天线端口组的 RSRP上报至所述基站。
8、根据权利要求 7所述的方法,其特征在于,所述终端根据所述第一 CSI-RS 资源配置信息, 测量所述第一 CSI-RS资源包含的每个天线端口组的 RSRP; 所 述终端将测量得到的所述第一 CSI-RS资源包含的每个天线端口组的 RSRP上报 至所述基站, 包括:
所述终端直接测量每个所述天线端口组的 RSRP,并将每个所述天线端口组 的 RSRP上报给所述基站;
或者, 所述终端测量每个所述第一 CSI-RS资源的 RSRP和所述第一 CSI-RS 资源中每个所述天线端口组的 RSRP, 并将所述第一 CSI-RS资源的 RSRP与该 第一 CSI-RS资源中每个所述天线端口组的 RSRP的差值上报给所述基站, 所述 第一 CSI-RS资源的 RSRP包括所述第一 CSI-RS资源中每个所述天线端口组的 RSRP的平均值;
或者, 所述终端测量任意至少一个所述第一 CSI-RS资源的 RSRP和所有所 述第一 CSI-RS资源中每个所述天线端口组的 RSRP, 并将任意至少一个所述第 一 CSI-RS资源的 RSRP与所有所述第一 CSI-RS资源的 RSRP中每个所述天线端 口组的 RSRP的差值上报给所述基站, 所述第一 CSI-RS资源的 RSRP包括所述 第一 CSI-RS资源中每个所述天线端口组的 RSRP的平均值。
9、 根据权利要求 7或 8所述的方法, 其特征在于, 所述终端根据所述第一 CSI-RS资源配置信息, 测量所述第一 CSI-RS资源包含的每个天线端口组的 RSRP之后, 还包括:
所述终端根据每个所述天线端口组的 RSRP, 获得所述第一 CSI-RS资源中 包含的各天线端口组的 RSRP总和或所述第一 CSI-RS资源中包含的各天线端口 组的 RSRP的平均值或所述第一 CSI-RS资源中包含的各天线端口组的 RSRP的 加权平均值;
所述终端将所述第一 CSI-RS资源中包含的各天线端口组的 RSRP总和或所 述第一 CSI-RS资源中包含的各天线端口组的 RSRP的平均值或所述第一 CSI-RS资源中包含的各天线端口组的 RSRP的加权平均值上报至所述基站。
10、 根据权利要求 7-9任一项所述的方法, 其特征在于, 还包括:
所述终端接收所述基站发送的第三 CSI-RS资源配置信息,所述第三 CSI-RS 资源配置信息中携带所述用于所述终端上报 RSRP的至少一个第三 CSI-RS资 源, 所述第三 CSI-RS资源包括至少一个天线端口;
所述终端根据所述第三 CSI-RS资源配置信息, 测量每个所述第三 CSI-RS 资源的 RSRP;
所述终端将测量得到的每个所述第三 CSI-RS资源的 RSRP上报至所述基 站。
1 1、 根据权利要求 10所述的方法, 其特征在于, 所述终端根据所述第三 CSI-RS资源配置信息, 测量每个所述第三 CSI-RS资源的 RSRP之后, 还包括: 所述终端根据每个所述第三 CSI-RS资源的 RSRP, 获得各所述第三 CSI-RS 资源的 RSRP总和或平均值或加权平均值;
所述终端将各所述第三 CSI-RS资源的 RSRP的总和或所述第三 CSI-RS资 源的 RSRP的平均值或所述第三 CSI-RS资源的 RSRP的加权平均值上报至所述 基站。
12、 一种参考信号接收功率的上报方法, 其特征在于, 包括:
基站确定用于终端不上报参考信号接收功率 RSRP的至少一个第二信道状 态信息参考信号 CSI-RS资源;
所述基站向所述终端发送第二 CSI-RS资源配置信息,所述第二 CSI-RS资源 配置信息中携带所述至少一个第二 CSI-RS资源;
所述基站接收所述终端上报的每个第四 CSI-RS资源的 RSRP , 所述第四 CSI-RS资源由所述终端根据所述终端可用的 CSI-RS资源以及所述第二 CSI-RS 资源确定。
13、 一种参考信号接收功率的上报方法, 其特征在于, 包括:
终端接收基站发送的第二信道状态信息参考信号 CSI-RS资源配置信息, 所 述第二 CSI-RS资源配置信息中携带所述至少一个第二 CSI-RS资源, 所述第二 CSI-RS资源用于所述终端不上报参考信号接收功率 RSRP;
所述终端根据所述终端可用的 CSI-RS资源以及所述第二 CSI-RS资源确定 用于上报 RSRP的第四 CSI-RS资源;
所述终端测量每个所述第四 CSI-RS资源的 RSRP;
所述终端将测量得到的每个第四 CSI-RS资源的 5 上^艮给所述基站。
14、 一种基站, 其特征在于, 包括:
配置单元,用于确定用于终端上报参考信号接收功率 RSRP的至少一个第一 信道状态信息参考信号 CSI-RS资源,所述第一 CSI-RS资源包含至少一个天线端 口组, 所述天线端口组包含至少一个天线端口;
发送器, 用于向所述终端发送第一 CSI-RS资源配置信息, 所述第一 CSI-RS 资源配置信息中携带所述配置单元确定的所述至少一个第一 CSI-RS资源;
接收器, 用于接收所述终端上报的所述第一 CSI-RS资源包含的每个天线端 口组的 RSRP。
15、 根据权利要求 14所述的基站, 其特征在于, 所述配置单元还用于: 确 定用于所述终端上报 RSRP的至少一个第三 CSI-RS资源, 所述第三 CSI-RS资源 包括至少一个天线端口;
所述发送器还用于: 向所述终端发送第三 CSI-RS资源配置信息, 所述第三 CSI-RS资源配置信息中携带所述至少一个第三 CSI-RS资源;
所述接收器还用于: 接收所述终端上报的每个所述第三 CSI-RS资源的 RSRP。
16、 根据权利要求 14或 15所述的基站, 其特征在于, 所述第一 CSI-RS资源 配置信息不含有物理层下行共享信道 PDSCH的每资源元素功率 EPRE与 CSI-RS的 EPRE的比值。
17、 根据权利要求 15所述的基站, 其特征在于, 所述第一 CSI-RS资源配置 信息和所述第三 CSI-RS资源配置信息中的至少一个不含有 PDSCH的 EPRE与 CSI-RS的 EPRE的比值。
18、 根据权利要求 14-17任一项所述的基站, 其特征在于, 所述配置单元满 足下述条件中的至少一个:
所述配置单元确定的所述第一 CSI-RS资源中所包含的天线端口数目小于或 等于用于所述终端上报 CSI的 CSI-RS资源中所包含的天线端口数目, 所述配置 单元确定的所述第一 CSI-RS资源中的所包括的天线端口数目的最大值小于用于 所述终端上报 CSI的 CSI-RS资源中的候选天线端口数目的最大值, 所述配置单 元确定的所述第一 CSI-RS资源中的所包括的天线端口数目集合小于用于所述终 端上报 CSI的 CSI-RS资源中的候选天线端口数目集合, 所述配置单元确定的所 述第一 CSI-RS资源的周期候选值的最小值大于用于所述终端上报 CSI的 CSI-RS资源的周期候选值的最小值,所述配置单元确定的所述第一 CSI-RS资源 的周期大于或等于用于所述终端上 "^CSI的 CSI-RS资源的周期。
19、 根据权利要求 15或 17所述的基站, 其特征在于, 所述配置单元满足下 述条件中的至少一个:
所述配置单元确定的所述第一 CSI-RS资源和第三 CSI-RS资源中所包含的 天线端口数目小于或等于用于所述终端上报 CSI的 CSI-RS资源中所包含的天线 端口数目,所述配置单元确定的所述第一 CSI-RS资源和第三 CSI-RS资源中的所 包含的天线端口数目的最大值小于用于所述终端上报 CSI的 CSI-RS资源中的候 选天线端口数目的最大值, 所述配置单元确定的所述第一 CSI-RS资源和第三 CSI-RS资源中的所包含的天线端口数目集合小于用于所述终端上报 CSI的 CSI-RS资源中的候选天线端口数目集合,所述配置单元确定的所述第一 CSI-RS 资源和第三 CSI-RS资源的周期候选值的最小值大于用于所述终端上报 CSI的 CSI-RS资源的周期候选值的最小值,所述配置单元确定的所述第一 CSI-RS资源 和第三 CSI-RS资源的周期大于或等于用于所述终端上报 CSI的 CSI-RS资源的 周期。
20、 一种终端, 其特征在于, 包括:
接收器, 用于接收基站发送的第一信道状态信息参考信号 CSI-RS资源配置 信息, 所述第一 CSI-RS资源配置信息中携带用于所述终端上报参考信号接收功 率 RSRP的至少一个第一 CSI-RS资源, 所述第一 CSI-RS资源包含至少一个天线 端口组, 所述天线端口组包含至少一个天线端口;
测量单元, 用于根据所述接收器接收的第一 CSI-RS资源配置信息, 测量所 述第一 CSI-RS资源包含的每个天线端口组的 RSRP;
发送器, 用于将所述测量单元测量得到的所述第一 CSI-RS资源包含的每个 天线端口组的 RSRP上报至所述基站。
21、 根据权利要求 20所述的终端, 其特征在于, 所述测量单元具体用于: 直接测量每个所述天线端口组的 RSRP, 所述发送器具体用于: 将每个所述天线 端口组的 RSRP上报给所述基站;
或者, 所述测量单元具体用于: 测量每个所述第一 CSI-RS资源的 RSRP和 所述第一 CSI-RS资源中每个所述天线端口组的 RSRP; 所述发送器具体用于: 将所述第一 CSI-RS资源的 RSRP与该第一 CSI-RS资源中每个所述天线端口组 的 RSRP的差值上报给所述基站, 所述第一 CSI-RS资源的 RSRP包括所述第一 CSI-RS资源中每个所述天线端口组的 RSRP的平均值;
或者, 所述测量单元具体用于: 测量任意至少一个所述第一 CSI-RS资源的 RSRP和所有所述第一 CSI-RS资源中每个所述天线端口组的 RSRP; 所述发送 器具体用于: 将任意至少一个所述第一 CSI-RS资源的 RSRP与所有所述第一 CSI-RS资源的 RSRP中每个所述天线端口组的 RSRP的差值上报给所述基站, 所述第一 CSI-RS资源的 RSRP包括所述第一 CSI-RS资源中每个所述天线端口 组的 RSRP的平均值。
22、根据权利要求 20或 21所述的终端, 其特征在于, 所述测量单元还用于: 根据每个所述天线端口组的 RSRP, 获得所述第一 CSI-RS资源中包含的各天线 端口组的 RSRP的总和或所述第一 CSI-RS资源中包含的各天线端口组的 RSRP 的平均值或所述第一 CSI-RS资源中包含的各天线端口组的 RSRP的加权平均 值;
所述发送器还用于: 将所述第一 CSI-RS资源中包含的各天线端口组的 RSRP总和或所述第一 CSI-RS资源中包含的各天线端口组的 RSRP的平均值或 所述第一 CSI-RS资源中包含的各天线端口组的 RSRP的加权平均值上报至所述 基站。
23、 根据权利要求 20-22任一项所述的终端, 其特征在于, 所述接收器还用 于: 接收所述基站发送的第三 CSI-RS资源配置信息, 所述第三 CSI-RS资源配置 信息中携带所述用于所述终端上报 RSRP的至少一个第三 CSI-RS资源, 所述第 三 CSI-RS资源包括至少一个天线端口;
所述测量单元还用于: 根据所述第三 CSI-RS资源配置信息, 测量每个所述 第三 CSI-RS资源的 RSRP;
所述发送器还用于: 将所述测量单元测量得到的每个所述第三 CSI-RS资源 的 RSRP上报至所述基站。
24、 根据权利要求 23所述的终端, 其特征在于, 所述测量单元还用于: 根 据每个所述第三 CSI-RS资源的 RSRP, 获得各所述第三 CSI-RS资源的 RSRP总 和或所述第三 CSI-RS资源的 RSRP的平均值或所述第三 CSI-RS资源的 RSRP的 加权平均值;
所述发送器还用于: 将各所述第三 CSI-RS资源的 RSRP总和或所述第三 CSI-RS资源的 RSRP的平均值或的加权平均值上报至所述基站。
25、 一种基站, 其特征在于, 包括:
配置单元,用于确定用于终端不上报参考信号接收功率 RSRP的至少一个第 二信道状态信息参考信号 CSI-RS资源;
发送器, 用于向所述终端发送第二 CSI-RS资源配置信息, 所述第二 CSI-RS 资源配置信息中携带所述配置单元确定的至少一个第二 CSI-RS资源;
接收器, 用于接收所述终端上报的每个第四 CSI-RS资源的 RSRP, 所述第 四 CSI-RS资源由所述终端根据所述终端可用的 CSI-RS资源以及所述配置单元 确定的至少一个第二 CSI-RS资源确定。
26、 一种终端, 其特征在于, 包括: 接收器, 用于接收基站发送的第二信道状态信息参考信号 CSI-RS资源配置 信息, 所述第二 CSI-RS资源配置信息中携带所述至少一个第二 CSI-RS资源, 所 述第二 CSI-RS资源用于所述终端不上报参考信号接收功率 RSRP;
处理单元, 用于根据所述终端可用的 CSI-RS资源以及所述接收器接收的第 二 CSI-RS资源确定用于上报 RSRP的第四 CSI-RS资源;
测量单元, 用于测量所述处理单元确定的每个所述第四 CSI-RS资源的 RSRP;
发送器, 用于将所述测量单元测量得到的每个第四 CSI-RS资源的 RSRP上 报给所述基站。
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