WO2017076250A1 - 无线通信设备和无线通信方法 - Google Patents

无线通信设备和无线通信方法 Download PDF

Info

Publication number
WO2017076250A1
WO2017076250A1 PCT/CN2016/103994 CN2016103994W WO2017076250A1 WO 2017076250 A1 WO2017076250 A1 WO 2017076250A1 CN 2016103994 W CN2016103994 W CN 2016103994W WO 2017076250 A1 WO2017076250 A1 WO 2017076250A1
Authority
WO
WIPO (PCT)
Prior art keywords
csi
wireless communication
user equipment
communication device
base station
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2016/103994
Other languages
English (en)
French (fr)
Inventor
徐瑨
刘思綦
高程
金炳丞
陈晋辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to CA3004142A priority Critical patent/CA3004142C/en
Priority to EP16861518.5A priority patent/EP3373632B1/en
Priority to US15/770,664 priority patent/US10651911B2/en
Priority to AU2016350973A priority patent/AU2016350973B2/en
Priority to EP20157362.3A priority patent/EP3678405B1/en
Priority to KR1020187015621A priority patent/KR102714832B1/ko
Publication of WO2017076250A1 publication Critical patent/WO2017076250A1/zh
Anticipated expiration legal-status Critical
Priority to US16/819,171 priority patent/US11223406B2/en
Ceased legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/28—Cell structures using beam steering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices

Definitions

  • the present disclosure generally relates to the field of wireless communications, and more particularly to a wireless communication device and a wireless communication method for a base station side and a user equipment side.
  • a channel information reference signal is defined in Long Term Evolution (LTE) R10, and information that the UE needs to feed back, such as a precoding matrix index (PMI) and a channel quality indicator (CQI), can be calculated by measuring the CSI-RS. ) and rank indication (RI).
  • PMI precoding matrix index
  • CQI channel quality indicator
  • RI rank indication
  • CSI-RS mechanisms such as a beamformed CSI-RS mechanism and a non-precoded CSI-RS mechanism.
  • a wireless communication device for a base station side includes one or more processors.
  • the processor is configured to obtain a distribution of the user equipment and determine a channel state information reference signal CSI-RS mechanism to employ based on the distribution of the user equipment.
  • the processor is further configured to generate indication information for indicating to the user equipment the CSI-RS mechanism to be employed.
  • the processor is further configured to control transmitting the CSI-RS to the user equipment in accordance with the CSI-RS mechanism.
  • a method of wireless communication for a base station side includes the steps of obtaining a distribution of user equipment and determining a channel state information reference signal CSI-RS mechanism to employ based on the distribution of the user equipment. Moreover, the method further includes the step of generating indication information for indicating to the user equipment the CSI-RS mechanism to be employed. Additionally, the method further includes the step of controlling transmission of the CSI-RS to the user equipment in accordance with the CSI-RS mechanism.
  • a wireless communication device for a user equipment side includes one or more processors.
  • the processor is configured to control transmitting an uplink signal providing directional information to the base station, and parsing indication information from the base station, the indication information indicating a channel state information reference signal CSI-RS mechanism to be employed.
  • the processor is further configured to control the measurement of the CSI-RS from the base station in accordance with the indicated CSI-RS mechanism.
  • a wireless communication method for a user equipment side is provided.
  • the method also includes the step of parsing the indication information from the base station, the indication information indicating a channel state information reference signal CSI-RS mechanism to employ.
  • the method also includes the step of controlling the measurement of the CSI-RS from the base station in accordance with the indicated CSI-RS mechanism.
  • the embodiment of the present invention can provide better CSI-RS performance by selecting an appropriate CSI-RS mechanism according to the distribution of user equipment.
  • FIG. 1 is a block diagram showing a configuration example of a wireless communication device for a base station side according to an embodiment of the present invention
  • FIG. 2 is a block diagram showing a configuration example of a wireless communication device for a base station side according to another embodiment
  • FIG. 3 is a flowchart showing an example of a procedure of a wireless communication method for a base station side according to an embodiment of the present invention
  • FIG. 4 is a block diagram showing a configuration example of a wireless communication device for a user equipment side according to an embodiment of the present invention
  • FIG. 5 is a block diagram showing a configuration example of a wireless communication device for a user equipment side according to another embodiment
  • FIG. 6 is a flowchart showing an example of a procedure for a wireless communication method on a user equipment side according to an embodiment of the present invention
  • FIG. 7 is a block diagram showing a configuration example of a wireless communication device for a base station side according to an embodiment of the present invention.
  • FIG. 8 is a block diagram showing a configuration example of a wireless communication device for a user equipment side according to an embodiment of the present invention.
  • FIG. 9 is a block diagram showing an exemplary structure of a computer that implements the method and apparatus of the present disclosure.
  • FIG. 10 is a block diagram showing an example of a schematic configuration of a smartphone that can apply the technology of the present disclosure
  • FIG. 11 is a block diagram showing an example of a schematic configuration of an eNB (Evolved Base Station) to which the technology of the present disclosure can be applied;
  • eNB Evolved Base Station
  • FIG. 12 is a schematic diagram for explaining a distribution of a user equipment and a CSI-RS mechanism
  • FIG. 13 is a schematic diagram for explaining an example of a CSI-RS resource configuration and measurement feedback process performed between a base station and a user equipment;
  • FIG. 14 is a schematic diagram for explaining another example of a CSI-RS resource configuration and measurement feedback process performed between a base station and a user equipment.
  • the wireless communication device 100 includes a processor 110.
  • the processor 110 includes a determining unit 111, a generating unit 113, and a control unit 115. It is to be noted that although the determination unit 111, the generation unit 113, and the control unit 115 are shown in the form of functional modules in the drawings, it should be understood that the functions of the determination unit 111, the generation unit 113, and the control unit 115 may also be performed by the processor 110. It is implemented as a whole, and is not necessarily implemented by separate physical components in processor 110.
  • the communication device 100 may include a plurality of processors, and the functions of the determining unit 111, the generating unit 113, and the control unit 115 may be distributed into a plurality of processors, thereby These functions are performed by multiple processors operating together.
  • the determining unit 111 is configured to obtain a distribution of the user equipment, and is based on the user equipment
  • the distribution case determines the channel state information reference signal (CSI-RS) mechanism to be employed.
  • the distribution of the user equipment can be obtained by estimating the distribution of the user equipment based on the directional information derived from the uplink signal of the user equipment.
  • the uplink signal may include, for example, a sounding reference signal (SRS), and the directivity information may include an angle of arrival (AOA) of the SRS.
  • SRS sounding reference signal
  • AOA angle of arrival
  • determining the CSI-RS mechanism may include selecting at least one of a beamformed CSI-RS and a non-precoded CSI-RS.
  • the determining unit 111 may be configured to select a CSI-RS mechanism suitable for the distribution case according to the distribution of the user equipment.
  • the distribution may be used to reflect the user density, and the distribution of the user equipment may be determined in various manners.
  • the distribution density of the user equipment may be determined, for example, based on a sounding reference signal (SRS) from the user equipment.
  • SRS sounding reference signal
  • the SRS may be periodically sent by the user equipment.
  • SRS is mainly used for uplink channel quality measurement for frequency selective scheduling, and its measurement result can be used as downlink beamforming.
  • 3GPP Protocol 36.211-5.5.3 for the content of the sounding reference signal.
  • the method for determining the CSI-RS mechanism according to the distribution of the user equipment in the embodiment of the present invention may include determining which CSI-RS mechanism to adopt according to whether the user equipment distribution of a certain area is sparse or dense.
  • the determination of whether the user equipment distribution is dense or sparse may be based on whether the density of user equipment within the area is greater than a predetermined threshold. In a densely distributed area of a user (for example, the density of user equipment in the area is higher than a predetermined threshold), if a beamforming CSI-RS mechanism is adopted, since there are too many beams in one area, it may be caused between the beams. Strong interference, which may reduce performance.
  • the determining unit 111 is configured to select a non-precoded CSI-RS if the user density is higher than a predetermined level, and select a beamforming CSI if the user density is lower than a predetermined level. -RS.
  • the predetermined level of user density is related to the spatial resolution of the beamforming CSI-RS.
  • the predetermined level of user density may correspond to an acceptable level of inter-beam interference when using a beamforming CSI-RS mechanism.
  • an area for measuring user density may include an entire cell, and a CSI-RS mechanism is determined for the entire cell. Or, according to an embodiment, may be served at the base station according to the user equipment. For the distribution in the sub-areas of the cell, the corresponding CSI-RS mechanism is selected for each sub-area.
  • the cell can be divided into N partitions.
  • the value of N can be changed with time.
  • the base station can select the value of N according to the specific situation.
  • the cell can be divided into three sectors.
  • partitions are not limited to horizontal partitions, and vertical partitions are also possible. A larger N can be used when more detailed results are needed, that is, a partitioning scheme with a high resolution.
  • the size of the partition can also be related to the coverage of a single beam.
  • the number of user devices in the partition (for example, in units) can be calculated, and the user density (number/partition) of the partition can be calculated and the calculated user density and the predetermined threshold T (for example, units) / partition) for comparison.
  • the value of T can be determined, for example, based on actual system test results.
  • the corresponding T may also be different.
  • T is considered to be densely distributed, and non-precoded CSI-RS may be employed; otherwise, the partition is considered to be sparsely distributed, and beamforming CSI-RS may be employed.
  • N can be increased, and the threshold (or threshold range) corresponding to the improved N is compared.
  • the improvement method of N can be improved step by step or skipped.
  • FIG. 12 shows an example of the distribution of user equipment in a cell.
  • cell 1210 is divided into two sub-regions 1212 and 1214, and the boundary between sub-regions 1212 and 1214 is indicated by dashed line 1201.
  • the user equipments in different sub-areas in the cell 1210 are distributed differently, and the user equipments in some areas are sparsely distributed, and the user equipments in some areas are densely distributed.
  • the beamforming CSI-RS and the non-precoding CSI-RS mechanisms can coexist in one cell, the former is suitable for sparse user equipment distribution, and the latter is suitable for dense user equipment distribution.
  • a non-precoded CSI-RS mechanism may be employed for user equipment within sub-region 1212
  • a beamforming CSI-RS mechanism may be employed for user equipment within sub-region 1214.
  • the distribution of user equipment tends to change over time. Accordingly, the applicable CSI-RS mechanism may also change accordingly, so it may be necessary to switch between different CSI-RS mechanisms.
  • the generating unit 113 is configured to generate indication information for indicating to the user equipment the CSI-RS mechanism to be employed.
  • indication information may be included in Radio Resource Control (RRC) signaling.
  • RRC Radio Resource Control
  • control unit 115 is configured to control the transmission of the CSI-RS to the user equipment according to the CSI-RS mechanism to be employed. Thereby, the user equipment can generate a channel state information (CSI) report based on the CSI-RS.
  • CSI channel state information
  • control unit 115 may also be configured to control reception and/or resolution of channel state information CSI reports from user equipment.
  • the format of the CSI report may also be different for different CSI-RS mechanisms. More specifically, for the non-precoded CSI-RS mechanism, its CSI report format may follow the CSI report format in the current standard; for the beamform CSI-RS mechanism, the current standard does not define the CSI report format under the mechanism.
  • control unit 115 is configured such that for beamforming CSI-RS, the received and/or resolved CSI report may only contain a channel quality indicator (CQI), while for a non-precoded CSI-RS, the CSI
  • CQI channel quality indicator
  • the report may include CQI, rank indication (RI), and precoding matrix indication (PMI).
  • the base station side device notifies the determined CSI-RS mechanism to the user equipment and performs the CSI reporting procedure accordingly according to an embodiment of the present invention. It should be understood that the present invention is not limited to the specific details in the examples below.
  • the base station can notify the user which CSI-RS mechanism is currently taken by the device.
  • the IE physicalConfigDedicated signaling may be modified, and a 1-bit parameter, for example, CSI-RS-MODE, is added to notify the user equipment which CSI-RS mechanism is currently adopted, and correspondingly, the user equipment should adopt Which CSI report format.
  • CSI-RS-MODE is 1, which indicates that the user equipment uses the beamforming CSI-RS mechanism and should feed back in the CSI report format of the beamforming CSI-RS;
  • CSI-RS-MODE is 0, which indicates that the user equipment uses a non-precoded CSI-RS mechanism and should feed back in the CSI report format of the non-precoded CSI-RS.
  • the IE CQI-ReportConfig can be modified.
  • CQI-ReportConfig-r13 can be defined and the corresponding part of CQI-ReportConfig in IE PhysicalConfigDedicated can be modified. Therefore, in PhysicalConfigDedicated-r13, in addition to the defined parameters, newly defined parameters, such as CSI-RS-MODE and CQI-ReportConfig-r13, are included.
  • An example of PhysicalConfigDedicated-r13 is modified as follows:
  • the user equipment in the current standard may only feed back CQI or simultaneously feed back PMI, RI, and CQI according to different requirements, and the content of the feedback is by IE CQI-ReportConfig in RRC. Controlled.
  • the parameter field pmi-RI-Report is not configured at this time (PMIRI does not exist).
  • the parameter field pmi-RI-Report is configured at this time.
  • CQI-ReportConfig-r13, modified pmi-RI-Report and PMIRI can be defined as follows:
  • pmi-RI-Report The descriptions of pmi-RI-Report and PMIRI in the CQI-ReportConfig field have been modified.
  • pmi-RI-Report the following is added to its description in the CQI-ReportConfig field:
  • the UE shall ignore pmi-RI-Report-r9/pmi-RI-Report-r10/pmi-RI-Report-r11 when pmi-RI-Report-r13 is configured for the serving cell on this carrier frequency (when for this carrier frequency)
  • the UE should ignore pmi-RI-Report-r9/pmi-RI-Report-r10/pmi-RI-Report-r11).
  • the wireless communication device for the base station side has been described above with reference to specific examples. With the above embodiments, switching between, for example, a non-precoded CSI-RS mechanism and a beamformed CSI-RS mechanism can be achieved.
  • the non-precoded CSI-RS provides a wide beam covering the whole cell, and the beamforming CSI-RS provides a narrow beam with directivity. Since the beamforming CSI-RS is directional, the user equipment obtains a larger gain than the non-precoded CSI-RS, so the beamforming CSI-RS can provide better service to the device. However, when the distance between the beams pointing to different user equipments is too small, the interference generated between the beams is large, and in this case, the non-precoded CSI-RS is more suitable. Therefore, it is suitable to use beamforming CSI-RS when the user equipment is sparsely distributed, and it is suitable to use non-precoding CSI-RS when dense.
  • corresponding CSI-RS resources can be set for different CSI-RS mechanisms.
  • the wireless communication device 200 for the base station side includes one or more processors 210, and the processor 210 includes a determining unit 211, a generating unit 213, and a control list. Element 215 and setting unit 217.
  • the determination unit 211, the generation unit 213, and the control unit 215 are similar to the determination unit 111, the generation unit 113, and the control unit 115 previously described with reference to FIG. 1, and a detailed description thereof will not be repeated here.
  • the setting unit 217 is configured to set a corresponding CSI-RS resource subset for the beamforming CSI-RS and the non-precoding CSI-RS, respectively.
  • the setting of the corresponding CSI-RS resource subset by the setting unit 217 may include setting respectively for beamforming CSI according to the number of user equipments employing beamforming CSI-RS and non-precoding CSI-RS.
  • the number of ports of the CSI-RS resources of the RS and the non-precoded CSI-RS As is generally understood in the art, the ports of the CSI-RS resources mentioned herein correspond to time-frequency resources for CSI-RS.
  • the generating unit 213 can be configured to generate information indicating the number of ports for the corresponding CSI-RS mechanism to the user equipment.
  • the setting unit 217 is configured to set the CSI-RS resource subsets corresponding to the beamforming CSI-RS and the non-precoding CSI-RS to be orthogonal to each other. With this configuration, it is possible to avoid overlapping of beamforming CSI-RS and non-precoding CSI-RS resources, and achieve orthogonality, thereby eliminating interference of non-precoded CSI-RS on beamforming CSI-RS.
  • CSI-RS resources in the form of the number of ports, for example, a subset of CSI-RS resources orthogonal to each other may be allocated for beamforming CSI-RS and non-precoding CSI-RS in the following manner:
  • the generating unit 213 may be configured to generate a message for indicating to the user equipment that the port is selected from the maximum port number of the CSI-RS resource. make.
  • the following example manners may be adopted:
  • an equalization factor " ⁇ " (0 ⁇ ⁇ ⁇ 1), the value of which depends on the distribution of user equipment. For example, when the number of user equipments suitable for allocating non-precoded CSI-RSs is higher than the proportion of user equipments of the entire cell, ⁇ takes a smaller value, that is, allocates more resources to non-precoded CSI-RSs, and allocates fewer resources to the beam. Shape CSI-RS; when the number of user equipment suitable for assigning beamforming CSI-RS accounts for the whole small When the proportion of the user equipment in the area is high, ⁇ takes a larger value, that is, allocates more resources to the beamforming CSI-RS, and allocates less resources to the non-precoded CSI-RS.
  • the CSI-RS resource can be divided into two groups according to the value of " ⁇ ", for example, group 1 and group 2.
  • group 1 is assigned to a beamforming CSI-RS
  • group 2 is assigned to a non-precoding CSI-RS.
  • the total number of CSI-RS ports corresponding to the CSI-RS resources in the group 1 is recorded as Portcount1
  • the total number of CSI-RS ports corresponding to the CSI-RS resources in the group 2 is recorded as Portcount2.
  • Portcount1 INT( ⁇ *8)
  • Portcount2 INT((1- ⁇ )*8)
  • N is the total number of CSI-RS ports.
  • the user equipment can parse Portcount1 ports from the CSI-RS port with the smallest ID according to the CSI-RS configuration in the existing standard, and the non-precoding CSI-RS mechanism In this case, the user equipment needs to resolve Portcount2 ports in reverse order from the CSI-RS port with the largest ID.
  • the CSI-RS port ID of the current 8-port is 15-22, so the CSI-RS port with the ID (15, 16, ..., 15+Portcount1-1) is assigned to the beamforming CSI-RS mechanism.
  • CSI-RS ports with IDs (22, 21, ..., 22-Portcount2+1) are allocated to group 2 of the non-precoded CSI-RS mechanism, so when the user equipment resolves the allocated ports and resources
  • the user equipment can sequentially parse Portcount1 ports from port 15 according to the CSI-RS configuration mode in the existing standard.
  • the user equipment needs to be reversed from port 22. Portcount 2 ports.
  • the above allocation methods of the non-precoded CSI-RS mechanism and the beamforming CSI-RS mechanism can also be interchanged.
  • a new signaling may be defined to indicate information to the user equipment.
  • the current standard supports that the user equipment starts to correctly analyze the allocated CSI-RS resources and ports from the CSI-RS port with the ID of 15, and does not support the above-mentioned non-pre-coded CSI-RS resource allocation method.
  • the user equipment cannot correctly resolve the allocated CSI-RS resources and ports. Therefore, a new signaling can be defined, for example called NP-portsindicator, which is for example 1 bit.
  • setting the respective subset of CSI-RS resources may include allocating ports for respective CSI-RS mechanisms according to one of a plurality of predetermined manners.
  • a predetermined party for indicating to the user equipment may be generated Instructions.
  • the predetermined manner of resource grouping may include, for example, a cross-packet, a random group, and the like.
  • the base station obtains the distribution of the user equipment by using the SRS periodically sent by the user equipment.
  • the base station may determine the user density of the different areas in the cell according to the distribution of the user equipment, and compare the user density with the predetermined threshold T. When the user density is greater than T, the user may be considered to be densely distributed. Otherwise, the user distribution in the area is considered sparse.
  • the base station can determine which CSI-RS mechanism is applicable to different areas in the cell. When the CSI-RS mechanism of a certain area changes, the base station may notify the user equipment of the area, for example, by RRC signaling.
  • the base station can reconfigure the corresponding CSI-RS resource for the user equipment. The user equipment can measure the allocated CSI-RS resources and feed back the CSI in the corresponding CSI report format.
  • FIG. 13 illustrates an example process for switching from a non-precoded CSI-RS to a beamforming CSI-RS.
  • the base station and the user equipment currently use a non-precoded CSI-RS mechanism.
  • the base station obtains the distribution of the user equipment by using the periodic SRS sent by the user equipment.
  • the base station calculates that the user density is less than the threshold T, that is, the user equipment distribution in the area is changed to sparse, so the base station determines to switch to the beamforming CSI-RS mechanism.
  • the base station notifies the user equipment of the change by, for example, RRC signaling, and reconfigures the corresponding CSI-RS resource for the user equipment.
  • the CSI-RS resource that is, the number of ports currently allocated, can be notified to the user equipment by using the antennaPortsCount parameter in the existing IE AntennaInfo (see 3GPP TS 36.311 6.3.2 for details).
  • the antennaPortsCount parameter in the IE AntennaInfo can be modified to the corresponding port number PortCount1.
  • PortCount2 is used to notify the user equipment of the number of ports allocated for beamforming CSI-RS or non-precoding CSI-RS.
  • the base station transmits a beamforming CSI-RS to the user equipment.
  • the user equipment parses the CSI-RS resource allocated to the measurement, and feeds back CSI (for example, only CQI) in the CSI report format corresponding to the beamforming CSI-RS mechanism in S1313.
  • CSI for example, only CQI
  • FIG. 14 illustrates an example process for switching from a beamformed CSI-RS to a non-precoded CSI-RS.
  • the base station and the user equipment currently use a beamforming CSI-RS mechanism.
  • the base station obtains the distribution of the user equipment by using the periodic SRS sent by the user equipment.
  • the base station calculates that the user density is greater than the threshold T, that is, the user equipment in the area is densely distributed, and the base station decides to switch to the non-precoded CSI-RS mechanism.
  • the base station notifies the user equipment of the change through RRC signaling, and reconfigures the corresponding CSI-RS resource for the user equipment.
  • the number of corresponding CSI-RS ports can be notified to the user equipment through the antennaPortsCount parameter in IE AntennaInfo.
  • the base station transmits a non-precoded CSI-RS to the user equipment.
  • the user equipment parses the CSI-RS resource to which the measurement is allocated, and feeds back CSI (eg, including PMI, CQI, and RI) in S1415 using the CSI report format corresponding to the non-precoded CSI-RS mechanism.
  • CSI eg, including PMI, CQI, and RI
  • a wireless communication method for a base station side includes the following steps:
  • the distribution of the user equipment is obtained, and the channel state information reference signal CSI-RS mechanism to be employed is determined based on the distribution of the user equipment.
  • indication information is generated, which is used to indicate to the user equipment the CSI-RS mechanism to be employed.
  • control transmits a CSI-RS to the user equipment.
  • embodiments of the present invention also include a wireless communication device on the user equipment side and a wireless communication method, and some aspects of these embodiments correspond to the above-described base station side apparatus and method, and thus a detailed description of these aspects is omitted.
  • a wireless communication device 400 for a user equipment side in accordance with one embodiment includes one or more processors 410.
  • the processor 410 includes a parsing unit 411 and a control unit 413.
  • the parsing unit 411 is configured to parse the indication information from the base station, the indication information indicating a CSI-RS mechanism to be employed.
  • the CSI-RS mechanism may be selected from a beamforming CSI-RS and a non-precoding CSI-RS. More specifically, the CSI-RS mechanism may be determined, for example, by the base station side according to the density of users in the area in which the user equipment is located.
  • Control unit 413 is configured to control measurements of CSI-RS from the base station in accordance with the indicated CSI-RS mechanism. Further, the control unit 413 is further configured to control transmission of an uplink signal providing directional information to the base station.
  • control unit 413 may be further configured to control transmitting a sounding reference signal (SRS) to the base station, wherein the SRS includes directionality information of the user equipment.
  • SRS sounding reference signal
  • the SRS can be used by the base station to determine the distribution of user equipment within the predetermined area, thereby determining the CSI-RS mechanism to be employed.
  • control unit 413 can be configured to control to periodically issue an SRS.
  • the base station can also obtain the user equipment distribution through the demodulation reference signal (DMRS) transmitted by the user equipment.
  • DMRS demodulation reference signal
  • the base station may also configure the non-precoded CSI-RS resource for the user equipment, and the user equipment may obtain the user equipment distribution by feeding back the CSI corresponding to the non-precoded CSI-RS resources.
  • control unit 413 may be further configured to perform control to: generate a channel state information CSI report based on the measurement of the CSI-RS from the base station according to the CSI-RS mechanism indicated by the base station .
  • the generated CSI report may include a channel quality indication; for the non-precoded CSI-RS, the generated CSI report may include a channel quality indicator, a rank indication, and a precoding matrix indication.
  • control unit 413 may be further configured to control transmitting the generated CSI report to the base station.
  • the CSI report of the configured CSI-RS resource may be sent according to the indicated CSI-RS mechanism.
  • CSI-RS resource sub-corresponding to beamforming CSI-RS and non-precoding CSI-RS Sets can be orthogonal to each other to reduce interference between different CSI-RS mechanisms.
  • FIG. 5 shows a configuration example of a wireless communication device for a user equipment side according to another embodiment.
  • the wireless communication device 500 for the user equipment side includes one or more processors 510.
  • the processor 410 includes a parsing unit 511, a selecting unit 513, and a control unit 515.
  • the parsing unit 511 and the control unit 515 are respectively similar to the parsing unit 411 and the control unit 413 described above with reference to FIG. 4, and detailed description thereof will not be repeated here.
  • the selecting unit 513 is configured to select a port for transmitting the CSI report based on information from the base station indicating the number of ports of the CSI-RS resource for the corresponding CSI-RS mechanism.
  • the selecting unit 513 may select a port for transmitting the CSI report from the first group of ports from the minimum port number of the CSI-RS resource.
  • the port for transmitting the CSI report may be selected from the second group of ports from the maximum port number of the CSI-RS resource in response to specific signaling from the base station (eg, the aforementioned signaling NP-portindicator).
  • FIG. 6 shows an example of a procedure for a wireless communication method for a user equipment side according to an embodiment of the present invention.
  • control transmits an uplink signal that provides directional information to the base station.
  • the uplink signal includes, for example, an SRS, and the directional information includes, for example, an angle of arrival.
  • the indication information from the base station is parsed, the indication information indicating a channel state information reference signal CSI-RS mechanism to be employed.
  • measurements of CSI-RS from the base station are controlled according to the indicated CSI-RS mechanism.
  • the embodiment of the present invention further includes a wireless communication device for the base station side as shown in FIG. 7, and a wireless communication device for the user equipment side as shown in FIG.
  • a wireless communication device 700 for a base station side includes a determining device 710, a generating device 720, and a controlling device 730.
  • the determining means 710 is configured to determine a channel state information reference signal CSI-RS mechanism to be employed.
  • the generating means 720 is configured to generate indication information for indicating to the user equipment the CSI-RS mechanism to be employed.
  • Control device 730 is configured to control transmitting CSI-RS to the user equipment in accordance with the CSI-RS mechanism.
  • a wireless communication device 800 package for a user equipment side according to an embodiment
  • the analysis device 810 and the control device 820 are included.
  • the parsing device 810 is configured to parse the indication information from the base station, the indication information indicating a channel state information reference signal CSI-RS mechanism to be employed.
  • Control device 820 is configured to control measurements of CSI-RS from the base station in accordance with the indicated CSI-RS mechanism.
  • the various steps of the above methods, as well as the various constituent modules and/or units of the above-described apparatus may be implemented as software, firmware, hardware or a combination thereof.
  • a program constituting software for implementing the above method may be installed from a storage medium or a network to a computer having a dedicated hardware structure (for example, the general-purpose computer 900 shown in FIG. 9), which is installed.
  • a dedicated hardware structure for example, the general-purpose computer 900 shown in FIG. 9
  • an arithmetic processing unit (i.e., CPU) 901 executes various processes in accordance with a program stored in a read only memory (ROM) 902 or a program loaded from a storage portion 908 to a random access memory (RAM) 903.
  • ROM read only memory
  • RAM random access memory
  • data required when the CPU 901 executes various processes and the like is also stored as needed.
  • the CPU 901, the ROM 902, and the RAM 903 are linked to each other via a bus 904.
  • Input/output interface 905 is also linked to bus 904.
  • the following components are linked to an input/output interface 905: an input portion 906 (including a keyboard, a mouse, etc.), an output portion 907 (including a display such as a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and a speaker, etc.)
  • the storage portion 908 (including a hard disk or the like), the communication portion 909 (including a network interface card such as a LAN card, a modem, etc.).
  • the communication section 909 performs communication processing via a network such as the Internet.
  • Driver 910 can also be linked to input/output interface 905 as needed.
  • a removable medium 911 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory or the like is mounted on the drive 910 as needed, so that a computer program read therefrom is installed into the storage portion 908 as needed.
  • a program constituting the software is installed from a network such as the Internet or a storage medium such as the removable medium 911.
  • such a storage medium is not limited to the removable medium 911 shown in FIG. 9 in which a program is stored and distributed separately from the device to provide a program to the user.
  • the detachable medium 911 include a magnetic disk (including a floppy disk (registered trademark)), an optical disk (including a compact disk read only memory (CD-ROM) and a digital versatile disk (DVD)), and a magneto-optical disk (including a mini disk (MD) (registered trademark) )) and semiconductor memory.
  • the storage medium may be a ROM 902, a hard disk included in the storage portion 908, or the like, in which programs are stored, and distributed to the user together with the device containing them.
  • Embodiments of the present invention also relate to a program product for storing a machine readable instruction code.
  • the instruction code is read and executed by a machine, the above-described method according to an embodiment of the present invention can be performed.
  • a storage medium for carrying a program product storing the above-described storage machine readable instruction code is also included in the disclosure of the present invention.
  • the storage medium includes, but is not limited to, a floppy disk, an optical disk, a magneto-optical disk, a memory card, a memory stick, and the like.
  • Embodiments of the present application also relate to the following electronic devices.
  • the electronic device can be implemented as any type of evolved Node B (eNB), such as a macro eNB and a small eNB.
  • the small eNB may be an eNB covering a cell smaller than the macro cell, such as a pico eNB, a micro eNB, and a home (femto) eNB.
  • the electronic device can be implemented as any other type of base station, such as a NodeB and a base transceiver station (BTS).
  • BTS base transceiver station
  • the electronic device can include: a body (also referred to as a base station device) configured to control wireless communication; and one or more remote wireless headends (RRHs) disposed at a different location than the body.
  • a body also referred to as a base station device
  • RRHs remote wireless headends
  • various types of terminals which will be described below, can operate as a base station by performing base station functions temporarily or semi-persistently.
  • the electronic device can be implemented as a mobile terminal (such as a smart phone, a tablet personal computer (PC), a notebook PC, a portable game terminal, a portable/encrypted dog type mobile router, and a digital camera device) or Vehicle terminal (such as car navigation equipment).
  • the electronic device may be a wireless communication module (such as an integrated circuit module including a single or a plurality of wafers) mounted on each of the above terminals.
  • FIG. 10 is a block diagram showing an example of a schematic configuration of a smartphone 2500 to which the technology of the present disclosure can be applied.
  • the smart phone 2500 includes a processor 2501, a memory 2502, a storage device 2503, an external connection interface 2504, an imaging device 2506, a sensor 2507, a microphone 2508, an input device 2509, a display device 2510, a speaker 2511, a wireless communication interface 2512, and one or more An antenna switch 2515, one or more antennas 2516, a bus 2517, a battery 2518, and an auxiliary controller 2519.
  • the processor 2501 may be, for example, a CPU or a system on chip (SoC), and controls the functions of the application layer and the other layers of the smartphone 2500.
  • the memory 2502 includes a RAM and a ROM, and stores data and programs executed by the processor 2501.
  • the storage device 2503 may include a storage medium such as a semiconductor memory and a hard disk.
  • the external connection interface 2504 is an interface for connecting an external device such as a memory card and a universal serial bus (USB) device to the smartphone 2500.
  • USB universal serial bus
  • the image pickup device 2506 includes an image sensor such as a charge coupled device (CCD) and a complementary metal oxide semiconductor (CMOS), and generates a captured image.
  • Sensor 2507 can include a set of sensors, such as a measurement sensor, a gyro sensor, a geomagnetic sensor, and an acceleration sensor.
  • the microphone 2508 converts the sound input to the smartphone 2500 into an audio signal.
  • the input device 2509 includes, for example, a touch sensor, a keypad, a keyboard, a button, or a switch configured to detect a touch on the screen of the display device 2510, and receives an operation or information input from a user.
  • the display device 2510 includes screens such as a liquid crystal display (LCD) and an organic light emitting diode (OLED) display, and displays an output image of the smartphone 2500.
  • the speaker 2511 converts the audio signal output from the smartphone 2500 into a sound.
  • the wireless communication interface 2512 supports any cellular communication scheme (such as LTE and LTE-A) and performs wireless communication.
  • Wireless communication interface 2512 may generally include, for example, a baseband (BB) processor 2513 and radio frequency (RF) circuitry 2514.
  • the BB processor 2513 can perform, for example, encoding/decoding, modulation/demodulation, and multiplexing/demultiplexing, and performs various types of signal processing for wireless communication.
  • the RF circuit 2514 may include, for example, a mixer, a filter, and an amplifier, and transmits and receives a wireless signal via the antenna 2516.
  • the wireless communication interface 2512 can be a chip module on which the BB processor 2513 and the RF circuit 2514 are integrated. As shown in FIG.
  • the wireless communication interface 2512 can include a plurality of BB processors 2513 and a plurality of RF circuits 2514.
  • FIG. 10 illustrates an example in which the wireless communication interface 2512 includes a plurality of BB processors 2513 and a plurality of RF circuits 2514, the wireless communication interface 2512 may also include a single BB processor 2513 or a single RF circuit 2514.
  • wireless communication interface 2512 can support additional types of wireless communication schemes, such as short-range wireless communication schemes, near field communication schemes, and wireless local area network (LAN) schemes.
  • the wireless communication interface 2512 can include a BB processor 2513 and RF circuitry 2514 for each wireless communication scheme.
  • Each of the antenna switches 2515 switches the connection destination of the antenna 2516 between a plurality of circuits included in the wireless communication interface 2512, such as circuits for different wireless communication schemes.
  • Each of the antennas 2516 includes a single or multiple antenna elements (such as multiple antenna elements included in a MIMO antenna) and is used by the wireless communication interface 2512 to transmit and receive wireless signals.
  • smart phone 2500 can include multiple antennas 2516.
  • FIG. 13 shows an example in which the smartphone 2500 includes a plurality of antennas 2516, the smartphone 2500 may also include a single antenna 2516.
  • smart phone 2500 can include an antenna 2516 for each wireless communication scheme.
  • the antenna switch 2515 can be omitted from the configuration of the smartphone 2500.
  • the bus 2517 includes a processor 2501, a memory 2502, a storage device 2503, an external connection interface 2504, an imaging device 2506, a sensor 2507, a microphone 2508, an input device 2509, and a display device.
  • the setting 2510, the speaker 2511, the wireless communication interface 2512, and the auxiliary controller 2519 are connected to each other.
  • Battery 2518 provides power to various blocks of smart phone 2500 shown in FIG. 13 via feeders, which are partially shown as dashed lines in the figure.
  • the secondary controller 2519 operates the minimum required function of the smartphone 2500, for example, in a sleep mode.
  • At least a portion of the functions of the units described with reference to FIGS. 4 and 5 may also be implemented by the processor 2501 or the auxiliary controller 2519.
  • the power consumption of the battery 2518 can be reduced by performing a portion of the functions of the processor 2501 by the auxiliary controller 2519.
  • the processor 2501 or the auxiliary controller 2519 can perform at least a part of the functions of the units described with reference to FIGS. 4 and 5 by executing the program stored in the memory 2502 or the storage device 2503.
  • the eNB 2300 includes one or more antennas 2310 and base station devices 2320.
  • the base station device 2320 and each antenna 2310 may be connected to each other via a radio frequency (RF) cable.
  • RF radio frequency
  • Each of the antennas 2310 includes a single or multiple antenna elements, such as multiple antenna elements included in a multiple input multiple output (MIMO) antenna, and is used by the base station device 2320 to transmit and receive wireless signals.
  • the eNB 2300 may include a plurality of antennas 2310.
  • multiple antennas 2310 can be compatible with multiple frequency bands used by eNB 2300.
  • FIG. 11 illustrates an example in which the eNB 2300 includes a plurality of antennas 2310, the eNB 2300 may also include a single antenna 2310.
  • the base station device 2320 includes a controller 2321, a memory 2322, a network interface 2323, and a wireless communication interface 2325.
  • the controller 2321 can be, for example, a CPU or a DSP, and operates various functions of higher layers of the base station device 2320. For example, controller 2321 generates data packets based on data in signals processed by wireless communication interface 2325 and delivers the generated packets via network interface 2323. The controller 2321 can bundle data from a plurality of baseband processors to generate bundled packets and deliver the generated bundled packets. The controller 2321 may have a logical function that performs control such as radio resource control, radio bearer control, mobility management, admission control, and scheduling. This control can be performed in conjunction with nearby eNBs or core network nodes.
  • the memory 2322 includes a RAM and a ROM, and stores programs executed by the controller 2321 and various types of control data such as a terminal list, transmission power data, and scheduling data.
  • the network interface 2323 is a communication interface for connecting the base station device 2320 to the core network 2324.
  • the controller 2321 can communicate with the core network node or another eNB via the network interface 2323 letter.
  • the eNB 2300 and the core network node or other eNBs may be connected to each other through a logical interface such as an S1 interface and an X2 interface.
  • the network interface 2323 can also be a wired communication interface or a wireless communication interface for wireless backhaul lines. If the network interface 2323 is a wireless communication interface, the network interface 2323 can use a higher frequency band for wireless communication than the frequency band used by the wireless communication interface 2325.
  • the wireless communication interface 2325 supports any cellular communication schemes, such as Long Term Evolution (LTE) and LTE-Advanced, and provides wireless connectivity to terminals located in cells of the eNB 2300 via the antenna 2310.
  • Wireless communication interface 2325 can typically include, for example, BB processor 2326 and RF circuitry 2327.
  • the BB processor 2326 can perform, for example, encoding/decoding, modulation/demodulation, and multiplexing/demultiplexing, and performs layers (eg, L1, Medium Access Control (MAC), Radio Link Control (RLC), and Packet Data Convergence Protocol (PDCP)) Various types of signal processing.
  • BB processor 2326 may have some or all of the above described logic functions.
  • the BB processor 2326 can be a memory that stores a communication control program, or a module that includes a processor and associated circuitry configured to execute the program.
  • the update program can cause the functionality of the BB processor 2326 to change.
  • the module can be a card or blade that is inserted into the slot of the base station device 2320. Alternatively, the module can also be a chip mounted on a card or blade.
  • the RF circuit 2327 may include, for example, a mixer, a filter, and an amplifier, and transmits and receives a wireless signal via the antenna 2310.
  • the wireless communication interface 2325 can include a plurality of BB processors 2326.
  • multiple BB processors 2326 can be compatible with multiple frequency bands used by eNB 2300.
  • the wireless communication interface 2325 can include a plurality of RF circuits 2327.
  • multiple RF circuits 2327 can be compatible with multiple antenna elements.
  • FIG. 11 illustrates an example in which the wireless communication interface 2325 includes a plurality of BB processors 2326 and a plurality of RF circuits 2327, the wireless communication interface 2325 may also include a single BB processor 2326 or a single RF circuit 2327.
  • At least a part of the functions of the units described with reference to FIGS. 1 and 2 may also be controlled by the controller 221.
  • the controller 2321 can perform at least a portion of the functions of the units described with reference to FIGS. 1 and 2 by executing a program stored in the memory 2322.
  • the method of the present invention is not limited to being performed in the chronological order described in the specification, and may be performed in other chronological order, in parallel, or independently. Therefore, the order of execution of the methods described in the present specification does not limit the technical scope of the present invention.

Landscapes

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

Abstract

本公开涉及无线通信设备和无线通信方法。根据一个实施例的用于基站侧的无线通信设备包括一个或更多个处理器。处理器被配置为获得用户设备的分布情况，并且基于用户设备的分布情况确定要采用的信道状态信息参考信号CSI-RS机制。此外，处理器还被配置为生成指示信息，该指示信息用于向用户设备指示所要采用的CSI-RS机制。另外，处理器还被配置为根据该CSI-RS机制控制向用户设备发送CSI-RS。

Description

无线通信设备和无线通信方法 技术领域
本公开一般涉及无线通信领域，更具体地，涉及用于基站侧以及用户设备侧的无线通信设备和无线通信方法。
背景技术
在长期演进(LTE)R10中定义了信道信息参考信号(CSI-RS)，通过对CSI-RS的测量可以计算出UE需要反馈的信息，例如预编码矩阵索引(PMI)、信道质量指示(CQI)以及秩指示(RI)。存在不同的CSI-RS机制，例如基于波束赋形(beamformed)的CSI-RS机制和基于非预编码(non-precoded)的CSI-RS机制等。
发明内容
在下文中给出了关于本发明实施例的简要概述，以便提供关于本发明的某些方面的基本理解。应当理解，以下概述并不是关于本发明的穷举性概述。它并不是意图确定本发明的关键或重要部分，也不是意图限定本发明的范围。其目的仅仅是以简化的形式给出某些概念，以此作为稍后论述的更详细描述的前序。
根据一个实施例，提供一种用于基站侧的无线通信设备，其包括一个或更多个处理器。处理器被配置为获得用户设备的分布情况，并且基于用户设备的分布情况确定要采用的信道状态信息参考信号CSI-RS机制。此外，处理器还被配置为生成指示信息，该指示信息用于向用户设备指示所要采用的CSI-RS机制。另外，处理器还被配置为根据该CSI-RS机制控制向用户设备发送CSI-RS。
根据另一个实施例，提供一种用于基站侧的无线通信方法。该方法包括获得用户设备的分布情况，并且基于用户设备的分布情况确定要采用的信道状态信息参考信号CSI-RS机制的步骤。此外，该方法还包括生成指示信息的步骤，该指示信息用于向用户设备指示所要采用的CSI-RS机制。另外，该方法还包括根据该CSI-RS机制控制向用户设备发送CSI-RS的步骤。
根据又一个实施例，提供一种用于用户设备侧的无线通信设备，其包括一个或更多个处理器。处理器被配置为控制向基站发送提供方向性信息的上行信号，以及解析来自基站的指示信息，该指示信息指示要采用的信道状态信息参考信号CSI-RS机制。此外，处理器还被配置为根据所指示的CSI-RS机制控制对来自基站的CSI-RS的测量。
根据再一个实施例，提供一种用于用户设备侧的无线通信方法。该包括控制向基站发送提供方向性信息的上行信号的步骤。该方法还包括解析来自基站的指示信息的步骤，该指示信息指示要采用的信道状态信息参考信号CSI-RS机制。此外，该方法还包括根据所指示的CSI-RS机制控制对来自基站的CSI-RS的测量的步骤。
本发明实施例通过根据用户设备的分布情况选择适当的CSI-RS机制，能够提供更好的CSI-RS性能。
附图说明
本发明可以通过参考下文中结合附图所给出的描述而得到更好的理解，其中在所有附图中使用了相同或相似的附图标记来表示相同或者相似的部件。所述附图连同下面的详细说明一起包含在本说明书中并且形成本说明书的一部分，而且用来进一步举例说明本发明的优选实施例和解释本发明的原理和优点。在附图中：
图1是示出根据本发明一个实施例的用于基站侧的无线通信设备的配置示例的框图；
图2是示出根据另一个实施例的用于基站侧的无线通信设备的配置示例的框图；
图3是示出根据本发明一个实施例的用于基站侧的无线通信方法的过程示例的流程图；
图4是示出根据本发明一个实施例的用于用户设备侧的无线通信设备的配置示例的框图；
图5是示出根据另一个实施例的用于用户设备侧的无线通信设备的配置示例的框图；
图6是示出根据本发明一个实施例的用于用户设备侧的无线通信方法的过程示例的流程图；
图7是示出根据本发明一个实施例的用于基站侧的无线通信设备的配置示例的框图；
图8是示出根据本发明一个实施例的用于用户设备侧的无线通信设备的配置示例的框图；
图9是示出实现本公开的方法和设备的计算机的示例性结构的框图；
图10是示出可以应用本公开内容的技术的智能电话的示意性配置的示例的框图；
图11是示出可以应用本公开内容的技术的eNB(演进型基站)的示意性配置的示例的框图；
图12是用于说明用户设备的分布情况与CSI-RS机制的示意图；
图13是用于说明在基站和用户设备间进行的CSI-RS资源配置和测量反馈过程示例的示意图；以及
图14是用于说明在基站和用户设备间进行的CSI-RS资源配置和测量反馈过程的另一示例的示意图。
具体实施方式
下面将参照附图来说明本发明的实施例。在本发明的一个附图或一种实施方式中描述的元素和特征可以与一个或更多个其它附图或实施方式中示出的元素和特征相结合。应当注意，为了清楚的目的，附图和说明中省略了与本发明无关的、本领域普通技术人员已知的部件和处理的表示和描述。
如图1所示，根据本实施例的无线通信设备100包括处理器110。处理器110包括确定单元111、生成单元113和控制单元115。需要指出，虽然附图中以功能模块的形式示出了确定单元111、生成单元113和控制单元115，然而应理解，确定单元111、生成单元113和控制单元115的功能也可以由处理器110作为一个整体来实现，而并不一定是通过处理器110中分立的实际部件来实现。另外，虽然图中以一个框示出处理器110，然而通信设备100可以包括多个处理器，并且可以将确定单元111、生成单元113和控制单元115的功能分布到多个处理器中，从而由多个处理器协同操作来执行这些功能。
确定单元111被配置为获得用户设备的分布情况，并且基于用户设备的 分布情况确定要采用的信道状态信息参考信号(CSI-RS)机制。例如，可以通过以下方式获得用户设备的分布情况：基于由用户设备的上行信号得出的方向性信息估计用户设备的分布情况。其中，上行信号例如可以包括探测参考信号(SRS)，方向性信息可以包括SRS的到达角(AOA)。
在实际场景中，基于波束赋形CSI-RS的机制与基于非预编码CSI-RS的机制并不互斥，并且可以同时存在。因此，根据一个实施例，确定CSI-RS机制可以包括选择波束赋形CSI-RS和非预编码CSI-RS至少一个。
更具体地，根据一个实施例，确定单元111可以被配置为根据用户设备的分布情况来选择适合分布情况的CSI-RS机制。
其中，所述分布情况可以用来反映用户密度，可以通过多种方式确定用户设备的分布情况。
例如，根据一个实施例，用户设备的分布密度例如可以是根据来自用户设备的探测参考信号(SRS)确定的。其中，SRS可以是由用户设备周期性的发送的。SRS主要用于上行信道质量测量，以用于频率选择性调度，并且可以将其测量结果用做下行波束赋形。关于SRS的具体参数和配置可参见3GPP协议36.211-5.5.3关于探测参考信号的内容。
本发明实施例根据用户设备的分布情况确定CSI-RS机制的判断方式可以包括根据某区域的用户设备分布为稀疏还是密集来确定采用哪种CSI-RS机制。对用户设备分布是密集还是稀疏的判断可以基于该区域内的用户设备的密度是否大于预定阈值。在某个用户密集分布的区域(例如，该区域内用户设备的密度高于预定阈值)中，如果采用波束赋形CSI-RS机制，则因为一个区域内波束太多，可能使得波束之间的干扰较强，从而有可能降低性能。
相应地，根据一个实施例，确定单元111被配置为在用户密度高于预定水平的情况下，选择非预编码CSI-RS，而在用户密度低于预定水平的情况下，选择波束赋形CSI-RS。
如前所述，该实施例的目的在于避免波束之间的干扰，因此，在该实施例中，用户密度的预定水平与波束赋形CSI-RS的空间分辨率有关。例如，用户密度的该预定水平可以对应于采用波束赋形CSI-RS机制时可接受的波束间干扰水平。
另外，用于衡量用户密度的区域可以包括整个小区，并且针对整个小区确定CSI-RS机制。或者，根据一个实施例，可与根据用户设备在基站所服 务的小区的子区域中的分布情况，分别针对各个子区域选择相应的CSI-RS机制。
具体地，可以将小区分成N个分区。N取值可以是随时间变化的，基站可以根据具体情况选择N的取值。例如，可以将小区分成三个扇区。另外，分区不限制于水平分区，还可能进行垂直分区。在需要比较细致的结果时可以选用较大的N，即对应分辨度高的分区方案。分区的大小还可以与单个波束的覆盖范围有关。
针对每个分区，可以计算该分区中用户设备数(例如，单位为个)，并计算出该分区用户密度(个/分区)并将计算得到的用户密度和预定阈值T(例如，单位为个/分区)进行比较。T的取值例如可以根据实际系统试验结果确定。当小区的分区数N取值不同时，对应的T也可以不同。针对每个区域，大于T时认为该区域分布为密集，并且可以采用非预编码CSI-RS；反之则认为该分区为稀疏分布，并且可以采用波束赋形CSI-RS。
此外，还可以考虑以下示例方式：
将T设置为一个范围，当目标区域的用户密度落入T范围内时，认为该区域为用户密集区域；当用户密度小于T下限时认为该区域为用户稀疏区域；当用户密度大于T上限时，可以认为分区不够细致，在这种情况下，可以提高N，和提高后的N对应的阈值(或阈值范围)进行比较。N的提高方法可以逐级提高也可以跳跃式提高。
图12示出了小区中用户设备的分布情况的示例。在该示例中，小区1210被分成两个子区域1212和1214，子区域1212和1214间的边界由虚线1201所示。如图12所示，小区1210中不同子区域的用户设备分布情况不同，部分区域用户设备分布稀疏，部分区域用户设备分布密集。由于在一个小区中波束赋形CSI-RS和非预编码CSI-RS机制是可以共存的，前者适用于稀疏的用户设备分布，后者适用于密集的用户设备分布。因此，例如，对于子区域1212内的用户设备可以采用非预编码CSI-RS机制，并且对于子区域1214内的用户设备可以采用波束赋形CSI-RS机制。
此外，用户设备分布情况往往随着时间不断变化，相应地，适用的CSI-RS机制也可能随之发生变化，因此可能有必要在不同的CSI-RS机制之间进行切换。
继续参照图1，生成单元113被配置为生成指示信息，该指示信息用于向用户设备指示所要采用的CSI-RS机制。例如，如下面结合具体示例更详 细说明的，该指示信息可以被包含在无线资源控制(RRC)信令中。
另外，控制单元115被配置为根据所要采用的CSI-RS机制，控制向用户设备发送CSI-RS。从而，用户设备能够基于CSI-RS生成信道状态信息(CSI)报告。
此外，根据一个实施例，控制单元115还可以被配置为控制对来自用户设备的信道状态信息CSI报告的接收和/或解析。
对于不同的CSI-RS机制，CSI报告的格式也可能不同。更具体地，对于非预编码CSI-RS机制，其CSI报告格式可以沿用当前标准中的CSI报告格式；对于波束赋形CSI-RS机制，当前标准没有对该机制下的CSI报告格式进行定义。
根据一个实施例，控制单元115被配置为，对于波束赋形CSI-RS，所接收和/或解析的CSI报告可以只包含信道质量指示(CQI)，而对于非预编码CSI-RS，该CSI报告可以包含CQI、秩指示(RI)和预编码矩阵指示(PMI)。
接下来，结合具体示例说明根据本发明实施例的基站侧设备将所确定的CSI-RS机制通知给用户设备并相应地进行CSI报告过程的示例。应理解，本发明不限于以下示例中的具体细节。
为了能够以正确的CSI报告格式进行反馈，当所要采用的CSI-RS机制发生改变后，基站可以通知用户设备当前采取的是哪种CSI-RS机制。例如，可以通过修改IE physicalConfigDedicated信令，在其中添加1bit的参数，例如称为CSI-RS-MODE，用于通知用户设备当前采取的是哪种CSI-RS机制，以及相应地，用户设备应该采用哪种CSI报告格式。
更具体地，可以考虑采用以下示例配置：
CSI-RS-MODE为1，其指示用户设备使用波束赋形CSI-RS机制，并应当以波束赋形CSI-RS的CSI报告格式进行反馈；
CSI-RS-MODE为0，其指示用户设备使用非预编码CSI-RS机制，并应当以非预编码CSI-RS的CSI报告格式进行反馈。
此外，为了支持用户设备具有反馈正确CSI内容和格式的能力，可以对IE CQI-ReportConfig进行修改，例如，可以定义CQI-ReportConfig-r13，并修改CQI-ReportConfig在IE PhysicalConfigDedicated中的对应部分。因此，在PhysicalConfigDedicated-r13中，除了已定义参数以外，包含了新定义的参数，例如CSI-RS-MODE以及CQI-ReportConfig-r13。 PhysicalConfigDedicated-r13的示例修改如下：
Figure PCTCN2016103994-appb-000001
此外，关于向用户设备指示CSI报告格式的具体方式，当前标准中用户设备根据不同的需求，可以只反馈CQI或同时反馈PMI、RI和CQI，反馈的内容是由RRC中的IE CQI-ReportConfig来进行控制的。
现有RRC资源配置流程中，当IE CQI-ReportConfig的参数域pmi-RI-Report不存在时，用户设备只反馈CQI。而pmi-RI-Report是否存在又是由存在条件PMIRI所决定的。
因此，为了使用户设备在使用波束赋形CSI-RS机制(例如，CSI-RS-MODE＝1)时只报告CQI，此时不配置参数域pmi-RI-Report(PMIRI不存在)。为了使用户设备在使用非预编码CSI-RS机制(例如，CSI-RS-MODE＝0)时反馈PMI、RI和CQI，此时配置参数域pmi-RI-Report(PMIRI存在)。因此，可以重定义IE CQI-ReportConfig，其参数域pmi-RI-Report及其存在条件PMIRI来支持波束赋形CSI-RS机制和非预编码CSI-RS机制CSI报告格式的切换和共存。例如，可以如下定义CQI-ReportConfig-r13，修改后的pmi-RI-Report和PMIRI：
Figure PCTCN2016103994-appb-000002
Figure PCTCN2016103994-appb-000003
并对pmi-RI-Report和PMIRI在CQI-ReportConfig域中的描述进行了修改。对于pmi-RI-Report，对它在CQI-ReportConfig域中的描述新增了如下内容：
The UE shall ignore pmi-RI-Report-r9/pmi-RI-Report-r10/pmi-RI-Report-r11 when pmi-RI-Report-r13 is configured for the serving cell on this carrier frequency(当针对此载波频率上的服务小区配置pmi-RI-Report-r13时，UE应忽略pmi-RI-Report-r9/pmi-RI-Report-r10/pmi-RI-Report-r11)。
对于PMIRI，对它在CQI-ReportConfig域中的描述新增了如下内容：
If CSI-RS-MODE is set to 1,this field is not present,and if CSI-RS-MODE is set to 0,this field is present(如果CSI-RS-MODE被设置为1，则存在该字段，如果CSI-RS-MODE被设置为0，则不存在该字段)。
以上结合具体示例说明了根据本发明一个实施例的用于基站侧的无线通信设备。通过上述实施例，能够实现例如非预编码CSI-RS机制和波束赋形CSI-RS机制之间的切换。
非预编码CSI-RS提供的是覆盖全小区的宽波束，波束赋形CSI-RS提供的是具有指向性的窄波束。因为波束赋形CSI-RS具有方向性，所以用户设备获得增益比非预编码CSI-RS时大，因此波束赋形CSI-RS能够给设备提供更好的服务。然而，当指向不同用户设备的波束之间距离过小时，波束间产生的干扰较大，这种情况下更适合使用非预编码CSI-RS。因此，在用户设备分布稀疏时适合使用波束赋形CSI-RS，密集时适合使用非预编码CSI-RS。由于小区中的各个子区域内用户设备分布情况并不一致，不同子区域内可能分别存在密集分布和稀疏分布，本方案能够很好地适应这一点，与单纯的波束赋形CSI-RS和单纯的非预编码CSI-RS相比，本发明实施例能够提供更好的性能。
另外，根据本发明的一个实施例，能够针对不同的CSI-RS机制设置相应的CSI-RS资源。
如图2所示，根据本实施例的用于基站侧的无线通信设备200包括一个或更多个处理器210，处理器210包括确定单元211、生成单元213、控制单 元215以及设置单元217。确定单元211、生成单元213和控制单元215与前面参照图1说明的确定单元111、生成单元113和控制单元115类似，在此不再重复其详细说明。
设置单元217被配置为分别针对波束赋形CSI-RS和非预编码CSI-RS设置相应的CSI-RS资源子集。
根据一个实施例，设置单元217对相应的CSI-RS资源子集的设置可以包括根据采用波束赋形CSI-RS和非预编码CSI-RS的用户设备的数量来设置分别用于波束赋形CSI-RS和非预编码CSI-RS的CSI-RS资源的端口数量。如本领域所一般理解的，这里所提到的CSI-RS资源的端口对应于用于CSI-RS的时频资源。
相应地，生成单元213可以被配置为生成向用户设备指示用于相应CSI-RS机制的端口数量的信息。
此外，根据一个实施例，设置单元217被配置为将与波束赋形CSI-RS和非预编码CSI-RS相对应的CSI-RS资源子集设置为彼此正交。通过该配置，能够避免波束赋形CSI-RS和非预编码CSI-RS资源的相互重叠，实现了正交性，从而消除了非预编码CSI-RS对波束赋形CSI-RS的干扰。
在以端口数量的形式分配CSI-RS资源的情况下，例如可以通过以下方式针对波束赋形CSI-RS和非预编码CSI-RS分配彼此正交的CSI-RS资源子集：
将从CSI-RS资源的最小端口号起的第一组端口分配给波束赋形CSI-RS和非预编码CSI-RS之一，将从CSI-RS资源的最大端口号起的第二组端口分配给波束赋形CSI-RS和非预编码CSI-RS中的另一个。
相应地，在所要采用的CSI-RS机制对应于上述第二组端口的情况下，生成单元213可以被配置为生成用于向用户设备指示从CSI-RS资源的最大端口号起选择端口的信令。
关于设置单元217针对不同CSI-RS机制设置CSI-RS资源子集的分配原则，例如可以采用以下示例方式：
定义一个均衡因子“α”(0≤α≤1)，其取值决定于用户设备分布情况。例如，当适合分配非预编码CSI-RS的用户设备数目占整个小区用户设备比例高时，α取较小值，即分配较多资源给非预编码CSI-RS，分配较少资源给波束赋形CSI-RS；当适合分配波束赋形CSI-RS的用户设备数目占整个小 区用户设备的比例高时，α取较大值，即分配较多资源给波束赋形CSI-RS，分配较少资源给非预编码CSI-RS。
然后，可以依据“α”的取值将CSI-RS资源分成两个分组，例如，组1和组2。其中，例如将组1分配给波束赋形CSI-RS，将组2分配给非预编码CSI-RS。将组1中CSI-RS资源对应的CSI-RS端口的总数记为Portcount1，组2中CSI-RS资源对应的CSI-RS端口总数记为Portcount2。例如，假设CSI-RS端口总数为8，则有Portcount1＝INT(α*8)，Portcount2＝INT((1-α)*8)，并且Portcount1+Portcount2＝N，其中，INT()表示取整，N为CSI-RS总端口数。
此外，例如可以约定波束赋形CSI-RS机制情况下用户设备可以按照已有标准中的CSI-RS配置方式从ID最小的CSI-RS端口正序解析Portcount1个端口，非预编码CSI-RS机制情况下用户设备需要从ID最大的CSI-RS端口倒序解析Portcount2个端口。例如，当前8端口时CSI-RS端口ID为15-22，故将ID为(15,16,...,15+Portcount1-1)的CSI-RS端口分配给波束赋形CSI-RS机制的组1，ID为(22,21,...,22-Portcount2+1)的CSI-RS端口分配给非预编码CSI-RS机制的组2中，因此在用户设备解析分配的端口和资源时，波束赋形CSI-RS机制情况下用户设备可以按照已有标准中的CSI-RS配置方式从端口15顺序解析Portcount1个端口，非预编码CSI-RS机制情况下用户设备需要从端口22倒序解析Portcount2个端口。当然，也可以将非预编码CSI-RS机制和波束赋形CSI-RS机制的上述分配方式互换。
此外，在需要从CSI-RS资源的最大端口号起选择端口的情况下，可以定义一个新的信令来向用户设备指示信息。
具体来说，当前的标准支持用户设备从ID为15的CSI-RS端口开始正序解析所分配的CSI-RS资源和端口，并不支持上述的非预编码CSI-RS资源分配方法中从ID为22的CSI-RS端口倒序解析的情况，故用户设备无法正确解析所分配的CSI-RS资源和端口。因此可以定义一个新的信令，例如称为NP-portsindicator，该信令例如为1bit。例如当使用了非预编码CSI-RS机制时，基站可以将NP-portsindicator(NP-portsindicator＝1)发送给用户设备，以指示用户设备需要从端口22倒序解析Portcount2个端口。
然而，资源分组的方式并不限于上述示例方式。根据一个实施例，设置相应的CSI-RS资源子集可以包括根据多个预定方式之一分配用于相应CSI-RS机制的端口。此外，可以生成用于向用户设备指示所采用的预定方 式的指示信息。资源分组的预定方式例如可以包括交叉分组、随机分组等方式等。
接下来，简要描述根据本发明实施例的基站侧无线通信设备与用户设备进行的处理的示例过程：
首先，基站通过用户设备周期性发送的SRS来获得用户设备的分布情况。基站可以根据用户设备分布情况确定小区中不同区域的用户密度，并且将用户密度与预定阈值T进行比较，当用户密度大于T时，可以认为该区域用户分布密集，否则认为该区域用户分布稀疏。依据用户设备分布情况，基站可以确定小区中的不同区域分别适用哪种CSI-RS机制。当某区域的CSI-RS机制改变时，基站可以例如通过RRC信令将该变化通知给该区域的用户设备。接下来，基站可以为用户设备重配置对应的CSI-RS资源。用户设备可以测量分配到的CSI-RS资源并用对应的CSI报告格式反馈CSI。
接下来，分别参照图13和图14说明从非预编码CSI-RS机制切换至波束赋形CSI-RS机制以及从波束赋形CSI-RS机制切换至非预编码CSI-RS机制的示例过程。
图13示出了从非预编码CSI-RS切换到波束赋形CSI-RS的示例过程。
在S1301，基站和用户设备当前使用非预编码CSI-RS机制。
在S1303，基站通过用户设备发送的周期SRS来获得用户设备的分布情况。
假设在S1305，基站计算出用户密度小于阈值T，即，该区域内用户设备分布转变为稀疏，因此基站确定切换到波束赋形CSI-RS机制。
接下来，在S1307，基站例如通过RRC信令通知用户设备这一变化，为用户设备重配置对应的CSI-RS资源。
其中，可以通过现有IE AntennaInfo中的antennaPortsCount参数(详情见3GPP TS36.311 6.3.2)向用户设备通知CSI-RS资源，即当前分配到的端口数。在CSI-RS资源(端口)被分为两个组，分别分配给波束赋形CSI-RS和非预编码CSI-RS的情况下，可以将IE AntennaInfo中的antennaPortsCount参数修改为对应的端口数目PortCount1或PortCount2用于通知用户设备分配到的用于波束赋形CSI-RS或非预编码CSI-RS的端口数
在S1309，基站向用户设备发送波束赋形CSI-RS。
在S1311，用户设备解析测量分配到的CSI-RS资源，并在S1313用波束赋形CSI-RS机制对应的CSI报告格式反馈CSI(例如，只包括CQI)。
图14示出了从波束赋形CSI-RS切换到非预编码CSI-RS的示例过程。
在S1401，基站和用户设备当前使用波束赋形CSI-RS机制。
在S1403，基站通过用户设备发送的周期SRS来获得用户设备的分布情况。
假设在S1405，基站计算出用户密度大于阈值T，即该区域用户设备分布密集，基站决定切换到非预编码CSI-RS机制。
接下来，在S1407，基站通过RRC信令向用户设备通知这一变化，为用户设备重配置对应的CSI-RS资源。如前所述，例如可以通过IE AntennaInfo中的antennaPortsCount参数向用户设备通知对应的CSI-RS端口数。
此外，在S1409，基站发送信令NP-portindicator(NP-portindicator＝1)以指示用户设备如何分配的资源，例如，指示用户设备需要从端口22倒序解析Portcount2个端口。
在S1411，基站向用户设备发送非预编码CSI-RS。
在S1413，用户设备解析测量分配到的CSI-RS资源，并在S1415用非预编码CSI-RS机制对应的CSI报告格式反馈CSI(例如，包括PMI、CQI和RI)。
以上在对根据本发明的实施例的用于基站侧的无线通信设备的描述中显然也公开了以下方法和过程，接下来，在不重复前面已经描述的细节的情况下给出对于根据本发明实施例的用于基站侧的无线通信方法的说明。
如图3所示，根据本发明的一个实施例，用于基站侧的无线通信方法包括以下步骤：
在S310，获得用户设备的分布情况，并且基于用户设备的分布情况确定要采用的信道状态信息参考信号CSI-RS机制。
接下来，在S320，生成指示信息，该指示信息用于向用户设备指示所要采用的CSI-RS机制。
接下来，在S330，根据所确定的CSI-RS机制，控制向用户设备发送CSI-RS。
另外，本发明的实施例还包括用户设备侧的无线通信设备和无线通信方法，这些实施例的某些方面与前面描述的基站侧的设备和方法相对应，因此省略对这些方面的具体说明。
如图4所示，根据一个实施例的用于用户设备侧的无线通信设备400包括一个或更多个处理器410。处理器410包括解析单元411和控制单元413。
解析单元411被配置为解析来自基站的指示信息，该指示信息指示要采用的CSI-RS机制。
其中，CSI-RS机制可以选自波束赋形CSI-RS和非预编码CSI-RS。更具体地，CSI-RS机制例如可以是由基站侧根据该用户设备所在的区域内的用户密度确定的。
控制单元413被配置为根据所指示的CSI-RS机制，控制对来自基站的CSI-RS的测量。此外，控制单元413还被配置为控制向基站发送提供方向性信息的上行信号。
根据一个实施例，控制单元413还可以被配置为控制向基站发送探测参考信号(SRS)，其中SRS包含用户设备的方向性信息。SRS可以用于基站确定预定区域内的用户设备分布，进而确定所要采用的CSI-RS机制。例如，控制单元413可以被配置为控制周期性地发出SRS。
此外，如前所述，基站也可以通过用户设备发送的解调参考信号(DMRS)获得用户设备分布。或者，基站也可以先给用户设备配置非预编码CSI-RS资源，通过用户设备反馈这些非预编码CSI-RS资源对应的CSI可以获得用户设备分布。
另外，根据一个实施例，控制单元413还可以被配置为进行控制以已进行以下操作：根据由基站指示的CSI-RS机制，基于对来自基站的CSI-RS的测量来生成信道状态信息CSI报告。
其中，对于波束赋形CSI-RS，所生成的CSI报告可以包含信道质量指示；对于非预编码CSI-RS，所生成的CSI报告可以包含信道质量指示、秩指示和预编码矩阵指示。
进一步地，控制单元413还可以被配置为控制向基站发送所生成的CSI报告。其中，可以根据所指示的CSI-RS机制，发送所配置的CSI-RS资源的CSI报告。
并且，与波束赋形CSI-RS和非预编码CSI-RS相对应的CSI-RS资源子 集可以彼此正交，以减小不同CSI-RS机制之间的干扰。
图5示出了根据另一个实施例的用于用户设备侧的无线通信设备的配置示例。
如图4所示，根据该实施例的用于用户设备侧的无线通信设备500包括一个或更多个处理器510。处理器410包括解析单元511、选择单元513和控制单元515。其中，解析单元511和控制单元515分别与前面参照图4说明的解析单元411和控制单元413类似，在此不再重复其详细说明。
选择单元513被配置为基于来自基站的指示用于相应CSI-RS机制的CSI-RS资源的端口数量的信息，选择用于发送CSI报告的端口。
其中，选择单元513可以从CSI-RS资源的最小端口号起的第一组端口中选择用于发送CSI报告的端口。或者，可以响应于来自基站的特定信令(例如，前述信令NP-portindicator)，从CSI-RS资源的最大端口号起的第二组端口选择用于发送CSI报告的端口。
图6示出了根据本发明的一个实施例的用于用于用户设备侧的无线通信方法的过程示例。
在S602，控制向基站发送提供方向性信息的上行信号。该上行信号例如包括SRS，并且该方向性信息例如包括到达角。
在S610，解析来自基站的指示信息，该指示信息指示要采用的信道状态信息参考信号CSI-RS机制。
在S620，根据所指示的CSI-RS机制，控制对来自基站的CSI-RS的测量。
此外，本发明实施例还包括如图7所示的用于基站侧的无线通信设备，以及如图8所示的用于用户设备侧的无线通信设备。
如图7所示，根据一个实施例的用于基站侧的无线通信设备700包括确定装置710、生成装置720以及控制装置730。
确定装置710被配置为确定要采用的信道状态信息参考信号CSI-RS机制。生成装置720被配置为生成指示信息，该指示信息用于向用户设备指示所要采用的CSI-RS机制。控制装置730被配置为根据该CSI-RS机制控制向用户设备发送CSI-RS。
如图8所示，根据一个实施例的用于用户设备侧的无线通信设备800包 括解析装置810以及控制装置820。
解析装置810被配置为解析来自基站的指示信息，该指示信息指示要采用的信道状态信息参考信号CSI-RS机制。控制装置820被配置为根据所指示的CSI-RS机制控制对来自基站的CSI-RS的测量。
作为示例，上述方法的各个步骤以及上述装置的各个组成模块和/或单元可以实施为软件、固件、硬件或其组合。在通过软件或固件实现的情况下，可以从存储介质或网络向具有专用硬件结构的计算机(例如图9所示的通用计算机900)安装构成用于实施上述方法的软件的程序，该计算机在安装有各种程序时，能够执行各种功能等。
在图9中，运算处理单元(即CPU)901根据只读存储器(ROM)902中存储的程序或从存储部分908加载到随机存取存储器(RAM)903的程序执行各种处理。在RAM 903中，也根据需要存储当CPU 901执行各种处理等等时所需的数据。CPU 901、ROM 902和RAM 903经由总线904彼此链路。输入/输出接口905也链路到总线904。
下述部件链路到输入/输出接口905：输入部分906(包括键盘、鼠标等等)、输出部分907(包括显示器，比如阴极射线管(CRT)、液晶显示器(LCD)等，和扬声器等)、存储部分908(包括硬盘等)、通信部分909(包括网络接口卡比如LAN卡、调制解调器等)。通信部分909经由网络比如因特网执行通信处理。根据需要，驱动器910也可链路到输入/输出接口905。可拆卸介质911比如磁盘、光盘、磁光盘、半导体存储器等等根据需要被安装在驱动器910上，使得从中读出的计算机程序根据需要被安装到存储部分908中。
在通过软件实现上述系列处理的情况下，从网络比如因特网或存储介质比如可拆卸介质911安装构成软件的程序。
本领域的技术人员应当理解，这种存储介质不局限于图9所示的其中存储有程序、与设备相分离地分发以向用户提供程序的可拆卸介质911。可拆卸介质911的例子包含磁盘(包含软盘(注册商标))、光盘(包含光盘只读存储器(CD-ROM)和数字通用盘(DVD))、磁光盘(包含迷你盘(MD)(注册商标))和半导体存储器。或者，存储介质可以是ROM 902、存储部分908中包含的硬盘等等，其中存有程序，并且与包含它们的设备一起被分发给用户。
本发明的实施例还涉及一种存储有机器可读取的指令代码的程序产品。所述指令代码由机器读取并执行时，可执行上述根据本发明实施例的方法。
相应地，用于承载上述存储有机器可读取的指令代码的程序产品的存储介质也包括在本发明的公开中。所述存储介质包括但不限于软盘、光盘、磁光盘、存储卡、存储棒等等。
本申请的实施例还涉及以下电子设备。在电子设备用于基站侧的情况下，电子设备可以被实现为任何类型的演进型节点B(eNB)，诸如宏eNB和小eNB。小eNB可以为覆盖比宏小区小的小区的eNB，诸如微微eNB、微eNB和家庭(毫微微)eNB。代替地，电子设备可以被实现为任何其他类型的基站，诸如NodeB和基站收发台(BTS)。电子设备可以包括：被配置为控制无线通信的主体(也称为基站设备)；以及设置在与主体不同的地方的一个或多个远程无线头端(RRH)。另外，下面将描述的各种类型的终端均可以通过暂时地或半持久性地执行基站功能而作为基站工作。
电子设备用于用户设备侧的情况下，可以被实现为移动终端(诸如智能电话、平板个人计算机(PC)、笔记本式PC、便携式游戏终端、便携式/加密狗型移动路由器和数字摄像装置)或者车载终端(诸如汽车导航设备)。此外，电子设备可以为安装在上述终端中的每个终端上的无线通信模块(诸如包括单个或多个晶片的集成电路模块)。
[关于终端设备的应用示例]
图10是示出可以应用本公开内容的技术的智能电话2500的示意性配置的示例的框图。智能电话2500包括处理器2501、存储器2502、存储装置2503、外部连接接口2504、摄像装置2506、传感器2507、麦克风2508、输入装置2509、显示装置2510、扬声器2511、无线通信接口2512、一个或多个天线开关2515、一个或多个天线2516、总线2517、电池2518以及辅助控制器2519。
处理器2501可以为例如CPU或片上系统(SoC)，并且控制智能电话2500的应用层和另外层的功能。存储器2502包括RAM和ROM，并且存储数据和由处理器2501执行的程序。存储装置2503可以包括存储介质，诸如半导体存储器和硬盘。外部连接接口2504为用于将外部装置(诸如存储卡和通用串行总线(USB)装置)连接至智能电话2500的接口。
摄像装置2506包括图像传感器(诸如电荷耦合器件(CCD)和互补金属氧化物半导体(CMOS))，并且生成捕获图像。传感器2507可以包括一组传感器，诸如测量传感器、陀螺仪传感器、地磁传感器和加速度传感器。 麦克风2508将输入到智能电话2500的声音转换为音频信号。输入装置2509包括例如被配置为检测显示装置2510的屏幕上的触摸的触摸传感器、小键盘、键盘、按钮或开关，并且接收从用户输入的操作或信息。显示装置2510包括屏幕(诸如液晶显示器(LCD)和有机发光二极管(OLED)显示器)，并且显示智能电话2500的输出图像。扬声器2511将从智能电话2500输出的音频信号转换为声音。
无线通信接口2512支持任何蜂窝通信方案(诸如LTE和LTE-A)，并且执行无线通信。无线通信接口2512通常可以包括例如基带(BB)处理器2513和射频(RF)电路2514。BB处理器2513可以执行例如编码/解码、调制/解调以及复用/解复用，并且执行用于无线通信的各种类型的信号处理。同时，RF电路2514可以包括例如混频器、滤波器和放大器，并且经由天线2516来传送和接收无线信号。无线通信接口2512可以为其上集成有BB处理器2513和RF电路2514的一个芯片模块。如图10所示，无线通信接口2512可以包括多个BB处理器2513和多个RF电路2514。虽然图10示出其中无线通信接口2512包括多个BB处理器2513和多个RF电路2514的示例，但是无线通信接口2512也可以包括单个BB处理器2513或单个RF电路2514。
此外，除了蜂窝通信方案之外，无线通信接口2512可以支持另外类型的无线通信方案，诸如短距离无线通信方案、近场通信方案和无线局域网(LAN)方案。在此情况下，无线通信接口2512可以包括针对每种无线通信方案的BB处理器2513和RF电路2514。
天线开关2515中的每一个在包括在无线通信接口2512中的多个电路(例如用于不同的无线通信方案的电路)之间切换天线2516的连接目的地。
天线2516中的每一个均包括单个或多个天线元件(诸如包括在MIMO天线中的多个天线元件)，并且用于无线通信接口2512传送和接收无线信号。如图10所示，智能电话2500可以包括多个天线2516。虽然图13示出其中智能电话2500包括多个天线2516的示例，但是智能电话2500也可以包括单个天线2516。
此外，智能电话2500可以包括针对每种无线通信方案的天线2516。在此情况下，天线开关2515可以从智能电话2500的配置中省略。
总线2517将处理器2501、存储器2502、存储装置2503、外部连接接口2504、摄像装置2506、传感器2507、麦克风2508、输入装置2509、显示装 置2510、扬声器2511、无线通信接口2512以及辅助控制器2519彼此连接。电池2518经由馈线向图13所示的智能电话2500的各个块提供电力，馈线在图中被部分地示为虚线。辅助控制器2519例如在睡眠模式下操作智能电话2500的最小必需功能。
在图10所示的智能电话2500中，参照图4和图5描述的各单元的功能的至少一部分也可以由处理器2501或辅助控制器2519实现。例如，可以通过由辅助控制器2519执行处理器2501的部分功能而减少电池2518的电力消耗。此外，处理器2501或辅助控制器2519可以通过执行存储器2502或存储装置2503中存储的程序而执行参照图4和图5描述的各单元的功能的至少一部分。
[关于基站的应用示例]
图11是示出可以应用本公开内容的技术的eNB的示意性配置的示例的框图。eNB 2300包括一个或多个天线2310以及基站设备2320。基站设备2320和每个天线2310可以经由射频(RF)线缆彼此连接。
天线2310中的每一个均包括单个或多个天线元件(诸如包括在多输入多输出(MIMO)天线中的多个天线元件)，并且用于基站设备2320发送和接收无线信号。如图11所示，eNB 2300可以包括多个天线2310。例如，多个天线2310可以与eNB 2300使用的多个频带兼容。虽然图11示出其中eNB2300包括多个天线2310的示例，但是eNB 2300也可以包括单个天线2310。
基站设备2320包括控制器2321、存储器2322、网络接口2323以及无线通信接口2325。
控制器2321可以为例如CPU或DSP，并且操作基站设备2320的较高层的各种功能。例如，控制器2321根据由无线通信接口2325处理的信号中的数据来生成数据分组，并经由网络接口2323来传递所生成的分组。控制器2321可以对来自多个基带处理器的数据进行捆绑以生成捆绑分组，并传递所生成的捆绑分组。控制器2321可以具有执行如下控制的逻辑功能：该控制诸如为无线资源控制、无线承载控制、移动性管理、接纳控制和调度。该控制可以结合附近的eNB或核心网节点来执行。存储器2322包括RAM和ROM，并且存储由控制器2321执行的程序和各种类型的控制数据(诸如终端列表、传输功率数据以及调度数据)。
网络接口2323为用于将基站设备2320连接至核心网2324的通信接口。控制器2321可以经由网络接口2323而与核心网节点或另外的eNB进行通 信。在此情况下，eNB 2300与核心网节点或其他eNB可以通过逻辑接口(诸如S1接口和X2接口)而彼此连接。网络接口2323还可以为有线通信接口或用于无线回程线路的无线通信接口。如果网络接口2323为无线通信接口，则与由无线通信接口2325使用的频带相比，网络接口2323可以使用较高频带用于无线通信。
无线通信接口2325支持任何蜂窝通信方案(诸如长期演进(LTE)和LTE-先进)，并且经由天线2310来提供到位于eNB 2300的小区中的终端的无线连接。无线通信接口2325通常可以包括例如BB处理器2326和RF电路2327。BB处理器2326可以执行例如编码/解码、调制/解调以及复用/解复用，并且执行层(例如L1、介质访问控制(MAC)、无线链路控制(RLC)和分组数据汇聚协议(PDCP))的各种类型的信号处理。代替控制器2321，BB处理器2326可以具有上述逻辑功能的一部分或全部。BB处理器2326可以为存储通信控制程序的存储器，或者为包括被配置为执行程序的处理器和相关电路的模块。更新程序可以使BB处理器2326的功能改变。该模块可以为插入到基站设备2320的槽中的卡或刀片。可替代地，该模块也可以为安装在卡或刀片上的芯片。同时，RF电路2327可以包括例如混频器、滤波器和放大器，并且经由天线2310来传送和接收无线信号。
如图11所示，无线通信接口2325可以包括多个BB处理器2326。例如，多个BB处理器2326可以与eNB 2300使用的多个频带兼容。如图11所示，无线通信接口2325可以包括多个RF电路2327。例如，多个RF电路2327可以与多个天线元件兼容。虽然图11示出其中无线通信接口2325包括多个BB处理器2326和多个RF电路2327的示例，但是无线通信接口2325也可以包括单个BB处理器2326或单个RF电路2327。
在图11所示的eNB 2300中，参照图1和图2描述的各单元的功能的至少一部分也可以由控制器2321。例如，控制器2321可以通过执行存储在存储器2322中的程序而执行参照图1和图2描述的各单元的功能的至少一部分。
在上面对本发明具体实施例的描述中，针对一种实施方式描述和/或示出的特征可以用相同或类似的方式在一个或更多个其它实施方式中使用，与其它实施方式中的特征相组合，或替代其它实施方式中的特征。
应该强调，术语“包括/包含”在本文使用时指特征、要素、步骤或组件的存在，但并不排除一个或更多个其它特征、要素、步骤或组件的存在或附加。
在上述实施例和示例中，采用了数字组成的附图标记来表示各个步骤和/或单元。本领域的普通技术人员应理解，这些附图标记只是为了便于叙述和绘图，而并非表示其顺序或任何其他限定。
此外，本发明的方法不限于按照说明书中描述的时间顺序来执行，也可以按照其他的时间顺序地、并行地或独立地执行。因此，本说明书中描述的方法的执行顺序不对本发明的技术范围构成限制。
尽管上面已经通过对本发明的具体实施例的描述对本发明进行了披露，但是，应该理解，上述的所有实施例和示例均是示例性的，而非限制性的。本领域的技术人员可在所附权利要求的精神和范围内设计对本发明的各种修改、改进或者等同物。这些修改、改进或者等同物也应当被认为包括在本发明的保护范围内。

Claims (28)

  1. 一种用于基站侧的无线通信设备，包括：
    一个或更多个处理器，被配置为
    获得用户设备的分布情况；
    基于所述用户设备的分布情况确定要采用的信道状态信息参考信号CSI-RS机制；
    生成指示信息，所述指示信息用于向用户设备指示所要采用的CSI-RS机制；以及
    根据所述CSI-RS机制，控制向所述用户设备发送CSI-RS。
  2. 根据权利要求1所述的无线通信设备，其中，确定所述CSI-RS机制包括选择波束赋形CSI-RS和非预编码CSI-RS之一。
  3. 根据权利要求2所述的无线通信设备，其中，获得所述用户设备的分布情况包括：基于由所述用户设备的上行信号得出的方向性信息估计所述用户设备的分布情况。
  4. 根据权利要求3所述的无线通信设备，其中，所述上行信号包括探测参考信号，所述方向性信息包括所述探测参考信号的到达角。
  5. 根据权利要求2所述的无线通信设备，其中，所述分布情况指示用户密度，所述选择包括：
    在用户密度高于预定水平的情况下，选择非预编码CSI-RS，在用户密度低于预定水平的情况下，选择波束赋形CSI-RS。
  6. 根据权利要求5所述的无线通信设备，其中，所述预定水平与所述波束赋形CSI-RS的空间分辨率有关。
  7. 根据权利要求3所述的无线通信设备，其中，所述选择包括：
    根据用户设备在所述基站的小区的子区域中的分布情况，分别针对各个子区域选择相应的CSI-RS机制。
  8. 根据权利要求7所述的无线通信设备，其中，所述选择包括：
    对于用户密度高于预定水平的所述子区域，选择非预编码CSI-RS；
    对于用户密度低于预定水平的所述子区域，选择波束赋形CSI-RS。
  9. 根据权利要求2所述的无线通信设备，其中，所述处理器还被配置为：
    控制对来自用户设备的信道状态信息CSI报告的接收和/或解析，其中，对于波束赋形CSI-RS，所述CSI报告包含信道质量指示而不包含秩指示和预编码矩阵指示，对于非预编码CSI-RS，所述CSI报告包含信道质量指示、秩指示和预编码矩阵指示中至少之一。
  10. 根据权利要求2所述的无线通信设备，其中，所述处理器还被配置为：将所述指示信息包含在无线资源控制信令中。
  11. 根据权利要求2所述的无线通信设备，其中，所述处理器还被配置为：
    分别针对波束赋形CSI-RS和非预编码CSI-RS设置相应的CSI-RS资源子集。
  12. 根据权利要求11所述的无线通信设备，其中，设置相应的CSI-RS资源子集包括：
    将针对波束赋形CSI-RS设置的CSI-RS资源子集和针对非预编码CSI-RS设置的CSI-RS资源子集设置为彼此正交。
  13. 根据权利要求11所述的无线通信设备，其中，设置相应的CSI-RS资源子集包括：
    根据采用波束赋形CSI-RS用户设备的数量来设置用于波束赋形CSI-RS的端口数量。
  14. 根据权利要求13所述的无线通信设备，其中，所述处理器还被配置为：
    生成用于向用户设备指示用于相应CSI-RS机制的端口数量的信息。
  15. 根据权利要求11所述的无线通信设备，其中，设置相应的CSI-RS资源子集包括：
    将从CSI-RS资源的最小端口号起的第一组端口分配给波束赋形CSI-RS和非预编码CSI-RS之一，将从CSI-RS资源的最大端口号起的第二组端口分配给波束赋形CSI-RS和非预编码CSI-RS中的另一个。
  16. 根据权利要求15所述的无线通信设备，其中，所述处理器还被配置为：
    在所要采用的CSI-RS机制对应于所述第二组端口的情况下，生成用于向用户设备指示从CSI-RS资源的最大端口号起选择端口的信令。
  17. 根据权利要求11所述的无线通信设备，其中，设置相应的CSI-RS资源子集包括：
    根据多个预定方式之一分配用于相应CSI-RS机制的端口，并且
    所述处理器还被配置为：
    生成用于向用户设备指示所采用的所述预定方式的指示信息。
  18. 一种用于基站侧的无线通信方法，包括：
    获得用户设备的分布情况；
    基于所述用户设备的分布情况确定要采用的信道状态信息参考信号CSI-RS机制；
    生成指示信息，所述指示信息用于向用户设备指示所要采用的CSI-RS机制；以及
    根据所述CSI-RS机制，控制向所述用户设备发送CSI-RS。
  19. 一种用于用户设备侧的无线通信设备，包括：
    一个或更多个处理器，被配置为
    控制向基站发送提供方向性信息的上行信号；
    解析来自基站的指示信息，所述指示信息指示要采用的信道状态信息参考信号CSI-RS机制；以及
    根据所指示的CSI-RS机制，控制对来自所述基站的CSI-RS的测量。
  20. 根据权利要求19所述的无线通信设备，其中，所述CSI-RS机制选自波束赋形CSI-RS和非预编码CSI-RS。
  21. 根据权利要求20所述的无线通信设备，其中，所述上行信号包括探测参考信号。
  22. 根据权利要求20所述的无线通信设备，其中，所述处理器还被配置为：
    根据所指示的CSI-RS机制，基于对来自所述基站的CSI-RS的测量来生成信道状态信息CSI报告，
    其中，对于波束赋形CSI-RS，所述CSI报告包含信道质量指示而不包含秩指示和预编码矩阵指示。
  23. 根据权利要求22所述的无线通信设备，其中，所述处理器还被配置为：
    控制向基站发送所述CSI报告，其中，根据所指示的CSI-RS机制，报告相应CSI-RS资源子集的CSI。
  24. 根据权利要求23所述的无线通信设备，其中，针对波束赋形CSI-RS设置的CSI-RS资源子集和针对非预编码CSI-RS设置的CSI-RS资源子集被设置为彼此正交。
  25. 根据权利要求24所述的无线通信设备，其中，所述处理器还被配置为：
    基于来自所述基站的指示用于相应CSI-RS机制的CSI-RS资源的端口数量的信息，确定所述用户设备分配到的相应CSI-RS机制的CSI-RS端口。
  26. 根据权利要求25所述的无线通信设备，其中，确定所述CSI-RS端口包括：
    从CSI-RS资源的最小端口号起的第一组端口中中确定所述CSI-RS端口；或者
    响应于来自所述基站的特定信令，从CSI-RS资源的最大端口号起的第二组端口中确定所述CSI-RS端口。
  27. 根据权利要求24所述的无线通信设备，其中，所述处理器还被配置为：
    基于来自基站的关于多个预定方式之一的指示信息，根据所指示的预定方式来确定所述用户设备分配到的相应CSI-RS机制的CSI-RS端口。
  28. 一种用于用户设备侧的无线通信方法，包括：
    控制向基站发送提供方向性信息的上行信号；
    解析来自基站的指示信息，所述指示信息指示要采用的信道状态信息参考信号CSI-RS机制；以及
    根据所指示的CSI-RS机制，控制对来自所述基站的CSI-RS的测量。
PCT/CN2016/103994 2015-11-06 2016-10-31 无线通信设备和无线通信方法 Ceased WO2017076250A1 (zh)

Priority Applications (7)

Application Number Priority Date Filing Date Title
CA3004142A CA3004142C (en) 2015-11-06 2016-10-31 Wireless communication device and wireless communication method for channel state information reference signal mechanism selection and measurement
EP16861518.5A EP3373632B1 (en) 2015-11-06 2016-10-31 Wireless communication device and wireless communication method
US15/770,664 US10651911B2 (en) 2015-11-06 2016-10-31 Wireless communication device and wireless communication method
AU2016350973A AU2016350973B2 (en) 2015-11-06 2016-10-31 Wireless communication device and wireless communication method
EP20157362.3A EP3678405B1 (en) 2015-11-06 2016-10-31 Wireless communication device and wireless communication method
KR1020187015621A KR102714832B1 (ko) 2015-11-06 2016-10-31 무선 통신 디바이스 및 무선 통신 방법
US16/819,171 US11223406B2 (en) 2015-11-06 2020-03-16 Wireless communication device and wireless communication method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510753149.1A CN106686620B (zh) 2015-11-06 2015-11-06 无线通信设备和无线通信方法
CN201510753149.1 2015-11-06

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US15/770,664 A-371-Of-International US10651911B2 (en) 2015-11-06 2016-10-31 Wireless communication device and wireless communication method
US16/819,171 Division US11223406B2 (en) 2015-11-06 2020-03-16 Wireless communication device and wireless communication method

Publications (1)

Publication Number Publication Date
WO2017076250A1 true WO2017076250A1 (zh) 2017-05-11

Family

ID=58661647

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/103994 Ceased WO2017076250A1 (zh) 2015-11-06 2016-10-31 无线通信设备和无线通信方法

Country Status (7)

Country Link
US (2) US10651911B2 (zh)
EP (2) EP3373632B1 (zh)
KR (1) KR102714832B1 (zh)
CN (1) CN106686620B (zh)
AU (1) AU2016350973B2 (zh)
CA (1) CA3004142C (zh)
WO (1) WO2017076250A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116326044A (zh) * 2020-10-02 2023-06-23 苹果公司 信道状态信息报告

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017075821A1 (zh) * 2015-11-06 2017-05-11 华为技术有限公司 一种信道状态信息的测量与反馈方法、用户设备及基站
JP7242161B2 (ja) * 2017-06-14 2023-03-20 ソニーグループ株式会社 通信装置、通信制御方法及びコンピュータプログラム
WO2019061260A1 (zh) 2017-09-29 2019-04-04 华为技术有限公司 一种测量方法、网络设备和终端设备
US11108476B2 (en) * 2017-10-17 2021-08-31 Intel Corporation Techniques in beam measurement
CN110289896A (zh) * 2018-03-15 2019-09-27 索尼公司 电子装置、无线通信方法以及计算机可读介质
CN110958042A (zh) 2018-09-26 2020-04-03 索尼公司 网络侧设备、用户设备、无线通信方法和存储介质
WO2020154832A1 (en) * 2019-01-28 2020-08-06 Qualcomm Incorporated Hybrid channel state feedback
CN113748632B (zh) * 2019-04-25 2023-05-05 华为技术有限公司 信道状态信息参考信号的配置方法和装置
US10797762B1 (en) * 2019-07-31 2020-10-06 Sprint Spectrum L.P. Beamforming in massive MIMO networks
US12301495B2 (en) 2020-02-12 2025-05-13 Nokia Solutions And Networks Oy Method and apparatus for controlling operation of user device
US11785637B2 (en) * 2020-04-29 2023-10-10 Qualcomm Incorporated Multiple channel state feedback reports for MU-MIMO scheduling assistance
CN117880902A (zh) * 2020-10-22 2024-04-12 大唐移动通信设备有限公司 小区切换方法、终端、基站、装置和存储介质
CN113298971B (zh) * 2021-05-08 2022-09-02 西安图迹信息科技有限公司 考虑多设备间无线信号干扰的发电厂巡检方法和系统
US12512891B2 (en) 2022-03-10 2025-12-30 Samsung Electronics Co., Ltd. Wireless communication device transmitting and receiving data using channel state information feedback and operating method thereof
CN115119314A (zh) * 2022-06-30 2022-09-27 西安交通大学 一种卫星通信系统的动态波束资源分配方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101714897A (zh) * 2009-11-12 2010-05-26 普天信息技术研究院有限公司 探测参考信号的配置方法
CN102448088A (zh) * 2010-09-30 2012-05-09 华为技术有限公司 测量资源指示的方法、测量方法和装置
CN103891183A (zh) * 2011-09-06 2014-06-25 Lg电子株式会社 用于测量无线通信系统中的干扰的方法和设备
CN105991222A (zh) * 2015-02-12 2016-10-05 中兴通讯股份有限公司 配置信息通知方法、获取方法、装置、基站及终端

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101417084B1 (ko) * 2008-07-02 2014-08-07 엘지전자 주식회사 상향링크 전송을 위한 기준신호 전송 방법
US20110244877A1 (en) * 2009-10-08 2011-10-06 Qualcomm Incorporated Method and apparatus for using channel state information reference signal in wireless communication system
CN102158874B (zh) * 2010-02-12 2014-04-30 华为技术有限公司 信道测量的方法和装置
WO2011115421A2 (en) 2010-03-17 2011-09-22 Lg Electronics Inc. Method and apparatus for providing channel state information-reference signal (csi-rs) configuration information in a wireless communication system supporting multiple antennas
JP5345111B2 (ja) * 2010-08-16 2013-11-20 株式会社エヌ・ティ・ティ・ドコモ Ｃｓｉ−ｒｓのシグナリング方法及び基地局装置
CA2834270C (en) * 2011-05-02 2016-11-15 Blackberry Limited Methods and systems of wireless communication with remote radio heads
KR101767997B1 (ko) * 2011-06-24 2017-08-14 삼성전자 주식회사 직교 주파수 분할 다중 접속 이동통신 시스템을 기반으로 하는 분산 안테나 시스템에서 하향링크 간섭 측정 방법 및 장치
US20130064216A1 (en) * 2011-09-12 2013-03-14 Research In Motion Limited DMRS Association and Signaling for Enhanced PDCCH in LTE Systems
US9363056B2 (en) * 2011-09-28 2016-06-07 Lg Electronics Inc. Method and apparatus for setting plurality of reference signal configurations in wireless communication system
WO2013111422A1 (ja) * 2012-01-26 2013-08-01 ソニー株式会社 無線通信装置及び無線通信方法、並びに無線通信システム
JP6097766B2 (ja) * 2012-01-27 2017-03-15 インターデイジタル パテント ホールディングス インコーポレイテッド マルチキャリアベースおよび／または疑似照合ネットワークにおいてｅｐｄｃｃｈを提供するためのシステムおよび／または方法
US9544876B2 (en) * 2012-03-16 2017-01-10 Intel Corporation Downlink control information (DCI) validation for enhanced physical downlink control channel (ePDCCH)
US9414371B2 (en) * 2012-04-16 2016-08-09 Samsung Electronics Co., Ltd. Hierarchical channel sounding and channel state information feedback in massive MIMO systems
US9681425B2 (en) * 2012-05-11 2017-06-13 Qualcomm Incorporated Rank-specific feedback for improved MIMO support
US8982693B2 (en) * 2012-05-14 2015-03-17 Google Technology Holdings LLC Radio link monitoring in a wireless communication device
US9198070B2 (en) * 2012-05-14 2015-11-24 Google Technology Holdings LLC Radio link monitoring in a wireless communication device
US20130343299A1 (en) * 2012-06-21 2013-12-26 Samsung Electronics Co., Ltd Method for cqi feedback without spatial feedback (pmi/ri) for tdd coordinated multi-point and carrier aggregation scenarios
US9225478B2 (en) * 2012-07-02 2015-12-29 Intel Corporation Supporting measurments and feedback for 3D MIMO with data transmission optimization
US20140029458A1 (en) * 2012-07-24 2014-01-30 Acer Incorporated Apparatuses and methods for signaling coordinated multi-point (comp) measurement configuration
US9106386B2 (en) * 2012-08-03 2015-08-11 Intel Corporation Reference signal configuration for coordinated multipoint
US9184889B2 (en) * 2012-08-08 2015-11-10 Blackberry Limited Method and system having reference signal design for new carrier types
US9439096B2 (en) * 2012-08-13 2016-09-06 Samsung Electronics Co., Ltd. Method and apparatus to support channel refinement and multi-stream transmission in millimeter wave systems
US9520963B2 (en) * 2013-03-22 2016-12-13 Telefonaktiebolaget Lm Ericsson (Publ) Modulation and coding scheme selection for link adaptation
JP6374510B2 (ja) * 2013-09-11 2018-08-15 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． チャネル状態情報参照信号を構成するための方法、および基地局
US9973249B2 (en) * 2014-12-23 2018-05-15 Samsung Electronics Co., Ltd. Channel state information feedback schemes for FD-MIMO
EP3269046A4 (en) * 2015-03-13 2018-04-25 Samsung Electronics Co., Ltd. Advanced feedback and reference signal transmissions for mimo wireless communication systems
US10547366B2 (en) * 2015-09-04 2020-01-28 Samsung Electronics Co., Ltd. Method and apparatus for CSI reporting on PUCCH

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101714897A (zh) * 2009-11-12 2010-05-26 普天信息技术研究院有限公司 探测参考信号的配置方法
CN102448088A (zh) * 2010-09-30 2012-05-09 华为技术有限公司 测量资源指示的方法、测量方法和装置
CN103891183A (zh) * 2011-09-06 2014-06-25 Lg电子株式会社 用于测量无线通信系统中的干扰的方法和设备
CN105991222A (zh) * 2015-02-12 2016-10-05 中兴通讯股份有限公司 配置信息通知方法、获取方法、装置、基站及终端

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3373632A4 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116326044A (zh) * 2020-10-02 2023-06-23 苹果公司 信道状态信息报告

Also Published As

Publication number Publication date
US20200220599A1 (en) 2020-07-09
EP3373632A1 (en) 2018-09-12
EP3373632A4 (en) 2018-09-12
US20180316404A1 (en) 2018-11-01
US10651911B2 (en) 2020-05-12
KR20180079412A (ko) 2018-07-10
CN106686620A (zh) 2017-05-17
AU2016350973B2 (en) 2021-04-01
KR102714832B1 (ko) 2024-10-10
EP3678405A1 (en) 2020-07-08
CN106686620B (zh) 2021-06-22
EP3678405B1 (en) 2021-12-08
CA3004142C (en) 2022-06-21
CA3004142A1 (en) 2017-05-11
US11223406B2 (en) 2022-01-11
EP3373632B1 (en) 2020-05-06
AU2016350973A1 (en) 2018-04-12

Similar Documents

Publication Publication Date Title
CN106686620B (zh) 无线通信设备和无线通信方法
US20250317176A1 (en) Electronic device, method and storage medium for wireless communication system
EP4114083A1 (en) Electronic device and method for wireless communication, and computer-readable storage medium
US12143188B2 (en) Network device, user equipment, wireless communication method and storage medium
CN106470096B (zh) 用于无线通信的基站侧和用户设备侧的装置及方法
US10574304B2 (en) Method, system and apparatus of beam selection
US20210083914A1 (en) Electronic device and method for wireless communication, and computer-readable storage medium
CN107636991B (zh) 信息传输方法、信息处理方法、基站以及移动台
WO2019029515A1 (zh) 用于无线通信的电子设备、方法和介质
CA3048935A1 (en) Electronic device, method and storage medium for wireless communication system
CN106416346B (zh) 设备和方法
CN106559120A (zh) 无线通信系统中的电子设备和无线通信方法
JP7268676B2 (ja) 電子装置
WO2016155571A1 (zh) 用于无线通信的装置和方法
JP2021532657A (ja) ユーザ機器、電子機器、無線通信方法及び記憶媒体
WO2022037467A1 (zh) 电子设备、无线通信方法和计算机可读存储介质
WO2021027802A1 (zh) 用于无线通信系统的电子设备、方法和存储介质

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16861518

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2016350973

Country of ref document: AU

Date of ref document: 20161031

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 15770664

Country of ref document: US

ENP Entry into the national phase

Ref document number: 3004142

Country of ref document: CA

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 20187015621

Country of ref document: KR

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 2016861518

Country of ref document: EP