WO2012155520A1 - 一种干扰测量参考信息的通知方法、干扰测量方法及装置 - Google Patents

一种干扰测量参考信息的通知方法、干扰测量方法及装置 Download PDF

Info

Publication number
WO2012155520A1
WO2012155520A1 PCT/CN2011/085023 CN2011085023W WO2012155520A1 WO 2012155520 A1 WO2012155520 A1 WO 2012155520A1 CN 2011085023 W CN2011085023 W CN 2011085023W WO 2012155520 A1 WO2012155520 A1 WO 2012155520A1
Authority
WO
WIPO (PCT)
Prior art keywords
interference measurement
reference information
interference
reference signal
measurement
Prior art date
Application number
PCT/CN2011/085023
Other languages
English (en)
French (fr)
Inventor
李儒岳
陈艺戬
孙云锋
徐俊
Original Assignee
中兴通讯股份有限公司
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 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to EP11865564.6A priority Critical patent/EP2763480A4/en
Priority to US14/364,701 priority patent/US9629014B2/en
Publication of WO2012155520A1 publication Critical patent/WO2012155520A1/zh

Links

Classifications

    • 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
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a notification method, an interference measurement method, and an apparatus for interference measurement reference information. Background technique
  • Channel State Information which reflects the status of the downlink physical channel, mainly includes three parts: Channel Quality Indication (CQI).
  • CQI Channel Quality Indication
  • PMI Pre-coding Matrix Indicator
  • RI Rank Indicator
  • CQI is an indicator to measure the quality of downlink channels.
  • CQI is represented by integer values from 0 to 15, which respectively represent different CQI levels.
  • Different CQIs correspond to their respective modulation and coding schemes (MCS), which are divided into 16 In this case, it can be represented by 4-bit information, as shown in Table 1 below:
  • the meaning of the feedback of CQI is:
  • the UE selects an appropriate transport block modulation coding level to recommend to the base station according to the channel quality, so that the base station can perform the modulation transmission of the channel according to the information to best utilize the transmission capability of the channel.
  • CQI can also be understood as the quantization of channel quality information. If the quality is good, it can support higher-order modulation and coding methods to obtain higher speed. If the quality is poor, it can only be performed in lower order modulation and coding. Transmission to ensure transmission robustness; in MIMO (Multiple Input and Multiple Output), the recommended CQI is generally assumed as follows:
  • the base station simultaneously transmits RI data using the recommended RI as the number of layers of spatial multiplexing, and uses the layer mapping method specified in the protocol;
  • the receiving algorithm actually used by the terminal is used to calculate the CQI based on the SINR (signal to interference and noise ratio) obtained by the receiving algorithm.
  • RI, PMI, and CQI are more mature algorithms, such as using the largest capacity criterion to select the best RI, PMI and CQI.
  • RI/PMI/CQI are not independent of each other, and the selection algorithm is generally a uniform choice.
  • the accuracy of RI/PMI/CQI calculations and selection is affected by two aspects: channel measurement and interference noise measurement.
  • the channel measurement may be based on a CRS (Common Reference Signal) in the LTE/LTE-A system or a CSI-RS (Channel. State Information-Reference Signal), currently speaking, A better pilot design can measure more accurate channels through CRS or CSI-RS.
  • CRS Common Reference Signal
  • CSI-RS Channel Reference Signal
  • Interference noise measurement is a technical bottleneck.
  • the wrong interference information may cause the number of layers to not match the actual channel quality. For example, it can only support 2 layers. However, due to measurement errors of interference noise information, it is misjudged to support 4 layers. This can result in a high bit error rate. Or, in practice, only low-order code modulation methods can be supported, and the misjudgment can support high-order code modulation, which also causes the bit error rate to be too high. On the contrary, it is possible to support multi-layer and high-order code modulation, but only use less layer and lower-order coding to transmit, resulting in waste of transmission resources.
  • the measurement of noise is generally relatively simple, since noise is generally caused by the device itself.
  • the interference situation mainly comes from other cells or other nodes, and the transmission technology of other cells or transmission nodes is different, for example, different precoding, or different transmission signals may cause changes in interference conditions. Therefore, the measurement of interference is the main technical problem that needs to be solved in the prior art.
  • interference measurement methods including three types: interference measurement based on CRS and interference measurement based on CSI-RS, and interference measurement based on proprietary demodulation pilot or transmission data.
  • the CRS-based interference measurement is based on the interference received by the CRS as a data signal (Data).
  • Data data signal
  • This method is currently a mainstream method. It is generally considered that the interference situation of CRS and data is similar, and because of the high density of CRS, according to the correlation of the channel, the information of interference information and reference signal can be distinguished to some extent. Therefore, the performance of channel estimation is also better. However, there are often problems with the same pattern of CRS between cells (caused by higher density).
  • Another method is to perform interference measurement according to CSI-RS. Since the CSI-RS density is relatively sparse when performing interference measurement according to CSI-RS, the interference performance is slightly poor, but there are often the same problem of CRS pattern between cells ( The reason for the higher density is caused by the fact that some of the CRS measurements are pilot interference from other cells rather than data interference, and there are some inaccuracies from this perspective. However, since CSI-RS has a low pilot density and does not have this problem, it is possible to use CSI-RS for interference measurement.
  • the interference measured based on the proprietary demodulation pilot or transmission data for interference measurement is more accurate and accurate. But its implementation is more complicated and needs to depend on the previous downlink data. Transmission, and the transmission of downlink data often does not exist in every subframe. In the frequency domain, only some locations have downlink data.
  • interference measurement based on CRS and interference measurement based on CSI-RS, and method for performing interference measurement based on proprietary demodulation pilot or transmission data is not limited, and the terminal can be used arbitrarily. It is believed that one of the preferred methods for performing interference measurements can also use other methods not mentioned.
  • any of the interference measurement techniques mentioned above may be suitable for interference measurement in conventional cells as well as in conventional antenna configurations, so the base station may not limit the interference measurement to the terminal.
  • the problem that the system does not limit the terminal interference measurement method is that it is not suitable for the distributed antenna system. Summary of the invention
  • the CRS configuration of the distributed antenna system uses the SFN (Single Frequency Network) configuration method.
  • One or two antennas are virtualized into one CRS Port per port.
  • the CSI-RS uses the Local (local) configuration method, and each transport node is configured with a set of CSI-RS.
  • the distributed antenna system In order to obtain the spatial split gain, the distributed antenna system often uses the multi-user space division multiplexing transmission mode, and the transmission node with the same frequency position does not serve multiple different users. As shown in FIG. 2, multiple transmission nodes belong to the same cell.
  • interference measurement based on CRS does not reflect other transmissions in the same-frequency transmission resource location cell. The interference caused by the node for the UE. Therefore, a better way is to use CSI-RS for interference measurement.
  • some UEs are antennas of all nodes and are combined into a terminal service using the same SFN method as the CRS port.
  • the excess interference is calculated based on CSI-RS measurement, so interference measurement based on CRS is more suitable.
  • the base station needs to limit the interference measurement to the terminal, and notifies the terminal of the corresponding interference measurement reference information.
  • the technical problem to be solved by the present invention is to provide a notification method, an interference measurement, and a device for interference measurement reference information, and the base station notifies the terminal of the reference information of the interference measurement.
  • the present invention provides a notification method for interference measurement reference information, the base station notifies the terminal of interference measurement reference information, and the reference signal used for specifying the interference measurement in the interference measurement reference information, and/or the reference of the interference measurement Resource location.
  • the reference signal used by the interference measurement specified in the interference measurement reference information comprises: a common reference signal (CRS), or a channel state information measurement reference signal (CSI-RS).
  • CRS common reference signal
  • CSI-RS channel state information measurement reference signal
  • the reference resource location of the interference measurement specified in the interference measurement reference information is a set of partial resource units (REs) within one or more transmission time intervals (TTIs).
  • REs partial resource units
  • TTIs transmission time intervals
  • the set of REs is a set of a plurality of incompletely consecutive REs.
  • the base station notifies the terminal of the interference measurement reference information by using high layer signaling, and specifies, in the high layer signaling, a reference signal used by the interference measurement, and/or a reference resource location of the interference measurement.
  • the interference measurement reference information is lbit, and is used to indicate: performing interference measurement according to CRS, or performing interference measurement according to CSI-RS; or
  • the interference measurement reference information is 2 bits, and is used to indicate: perform interference measurement according to CRS, perform interference measurement according to CSI-RS, perform interference measurement according to DMRS, or perform interference measurement according to data.
  • the base station jointly encodes the reference signal used by the interference measurement together with the channel measurement reference information indication.
  • the invention also provides an interference measurement method, the method comprising:
  • the terminal receives the interference measurement reference information notified by the base station, and performs interference measurement according to the reference signal used by the interference measurement specified in the interference measurement reference information, and/or the reference resource position of the interference measurement.
  • the present invention further provides a notification device for interference measurement reference information, which is applied to a base station, and the device includes: a reference information notification unit,
  • the reference information notification unit is configured to: notify the terminal to interfere with the measurement reference information, wherein the interference measurement reference information specifies a reference signal used by the interference measurement, and/or a reference resource location of the interference measurement.
  • the reference information notification unit is configured to: refer to the interference measurement reference information
  • the reference signal used for the interference measurement is as follows: Common Reference Signal (CRS), or Channel State Information Measurement Reference Signal (CSI-RS).
  • CRS Common Reference Signal
  • CSI-RS Channel State Information Measurement Reference Signal
  • the reference information notification unit is configured to: the reference resource location of the interference measurement specified in the interference measurement reference information is a set of partial REs within one or more TTIs; wherein, the RE A collection is a collection of multiple REs that are not completely contiguous.
  • the reference information notification unit is configured to: notify the terminal of the interference measurement reference information by using high layer signaling, and specify, in the high layer signaling, a reference signal used by the interference measurement, and/or a reference for interference measurement. Resource location.
  • the reference information notification unit is set to:
  • Passing the interference measurement reference information of the lbit in the high layer signaling indicating: performing interference measurement according to CRS, or performing interference measurement according to CSI-RS;
  • the interference measurement reference information of the lbit in the high-layer signaling indicating: performing interference measurement according to CRS, performing interference measurement according to CSI-RS, performing interference measurement according to DMRS, or performing interference measurement according to the data;
  • the reference signal used for the interference measurement and the channel measurement reference information indication are jointly encoded together.
  • the present invention further provides an interference measurement apparatus, which is applied to a terminal, and includes: a reference information receiving unit and an interference measurement unit, where the reference information receiving unit is configured to: receive interference measurement reference information notified by the base station, where the interference The reference signal used for the interference measurement, and/or the reference resource location of the interference measurement are specified in the measurement reference information;
  • the interference measurement unit is configured to: perform interference measurement according to a reference signal used by the interference measurement specified in the interference measurement reference information, and/or a reference resource position of the interference measurement.
  • the base station specifies the reference signal used by the terminal interference measurement and/or the reference resource position of the interference measurement by using the interference measurement reference message; after receiving the interference measurement reference information, the base station according to the base station Interference measurement is performed on the specified reference signal, and/or the reference resource location of the interference measurement.
  • FIG. 1 is a schematic diagram of a CRS configuration of a distributed antenna system
  • FIG. 2 is a schematic diagram of a CSI-RS configuration and a service relationship of a distributed antenna system
  • FIG. 3 is a schematic diagram of a reference resource location for notifying interference measurement according to an embodiment of the present invention. Preferred embodiment of the invention
  • the embodiment provides a notification method for interference measurement reference information, including:
  • the base station notifies the terminal of the interference measurement reference information, wherein the interference measurement reference information specifies a reference signal used for the interference measurement, and/or a reference resource location of the interference measurement.
  • the reference signal used by the interference measurement specified in the interference measurement reference information includes: CRS, or CSI-RS.
  • the reference resource location of the interference measurement specified in the interference measurement reference information is a set of partial REs (Resource Element) within one or more TTK Transmission Time Intervals.
  • the partial RE set in the TTI is a set of multiple incomplete contiguous REs (Resource Element), where RE is a minimum resource unit defined by LTE.
  • the terminal performs interference measurement according to the reference signal used by the interference measurement specified in the interference measurement reference information notified by the base station, and/or the reference resource position of the interference measurement.
  • the base station uses the high layer signaling to notify the terminal of the reference signal used by the interference measurement, and/or the reference resource location of the interference measurement.
  • the interference measurement reference information may be lbit or 2 bit indication information.
  • the base station may further jointly encode the reference signal used by the interference measurement and the channel measurement reference information indication.
  • the scenario described in this embodiment is based on a distributed multi-antenna system, wherein the configuration of the antenna and the antenna port is as shown in FIG. 2.
  • the base station determines that the channel measurement reference pilot of one terminal is a CSI-RS, and the terminal selects a service node, such as UE1, according to the CSI-RS, and selects a service node as a remote radio head (RRH1), and the RRH1 is At the same co-frequency location of UE1 service, RRH2 is also serving UE2, RRH3 is also serving UE3, and Macro (macro base station) is also serving UE4. At this time, the UE is interfered by the signals transmitted by RRH2, RRH3, and Macro.
  • a service node such as UE1
  • RRH1 remote radio head
  • the measurement and reporting of the channel quality information is mainly for data transmission. Therefore, the base station selects the CSI-RS as the reference signal for interference measurement, and informs the terminal of the interference measurement reference information through the high layer signaling.
  • the terminal After receiving the interference measurement reference information, the terminal performs interference measurement according to the CSI-RS.
  • the scenario described in this embodiment is based on a distributed multi-antenna system, wherein the configuration of the antenna and the antenna port is as shown in FIG. 2.
  • the base station determines that the channel measurement reference pilot of one terminal is CRS, which is in TDD mode, and the terminal does not feed back PMI and RI, and only feeds back CQL.
  • the terminal measures the RSRP (channel information of large-scale fading, reflecting the distance between the user and the transmission node) according to the CSI-RS, and selects the serving node, for example, UE1, and selects the serving node as RRH1, and the RRH1 serves the simultaneous frequency position of the UE1, and the RRH2 also In serving UE2, RRH3 is also serving UE3, and Macro is also serving UE4.
  • the UE is interfered by the signal transmitted by RRH2, RRH3, and Macro. The interference of these transmitted signals not only interferes with the data of UE1, but also interferes with the CSI-RS of UE1.
  • CRS cannot reflect the interference of user data.
  • the measurement and reporting of the channel quality information is mainly for data transmission. Therefore, the base station selects the CSI-RS as the reference signal for interference measurement, and informs the terminal of the interference measurement reference information through the high layer signaling.
  • the terminal After receiving the interference measurement reference information, the terminal performs interference measurement according to the CSI-RS.
  • the scenario described in this embodiment is based on a distributed multi-antenna system, wherein the configuration of the antenna and the antenna port is as shown in FIG. 2.
  • the base station determines that the channel measurement reference pilot of one terminal is CRS, and the demodulation pilot is also CRS.
  • each node sends data to the same user using the same SFN merge method as CRS.
  • all the nodes on the same frequency only serve the same user, and there is no interference caused by the node transmission signal in the cell, and only the interference caused by the signal transmitted by the node outside the cell exists.
  • the interference from the nodes in the cell can be detected according to the CSI-RS, but in fact, the data does not receive the interference of the nodes in the cell, and the nodes in the small area transmit useful data for them, therefore, the CRI-RS cannot be very Good characterization of the interference situation.
  • the base station selects the CRS as the reference signal for the interference measurement, and notifies the terminal of the interference measurement reference information through the high layer signaling.
  • the terminal After receiving the interference measurement reference information, the terminal performs interference measurement according to the CRS.
  • the lbit information when the base station notifies the terminal of the reference signal used for the interference measurement by using the interference measurement reference information, the lbit information may be used to represent two states, as shown in Table 2 below:
  • 2bit information can be used to represent 4 states, as shown in Table 3 below:
  • Table 3 Interference measurement reference information table 2
  • the base station jointly encodes the channel measurement reference information indication and the interference measurement reference information, for example, a case where 2 bits can be used, as shown in Table 4 below, respectively, indicating four states:
  • the base station may replace the manner of notifying the interference measurement reference pilot by notifying the reference resource location of the interference measurement.
  • the transport block structure diagram, one subframe in the time domain, and one RB (Resource Block, LTE-defined resource block) in the time-frequency domain are each RE.
  • the base station may employ a set of REs within the specified one or more TTIs when notifying the reference resource location of the interference measurement.
  • the base station notifies the UE that the reference resource location of the interference is within the TTI as the following RE
  • the base station notifies the UE that the reference resource location of the interference is within the TTI as the following RE
  • (k,l) denotes an RE
  • the set is ⁇ (0,5), (0,6), (0,12), (0,13), (1,5), (1,6), (1 , 12), (1,13), (5,5), (5,6), (5,12), (5,13), (6,5), (6,6), (6,12), (6 ,13), (10,5), (10,6), (10,12) : (10,13), (11,12), (11,5), (11,6), (11,13 ) ⁇ .
  • the base station notifies the UE that the reference resource location of the interference is within the TTI as the following RE
  • the embodiment of the present invention further provides a notification device for interference measurement reference information, which is applied to a base station, and the device mainly includes: a reference information notification unit,
  • the reference information notification unit is configured to notify the terminal of the interference measurement reference information, where the reference measurement signal used in the interference measurement reference information and/or the reference resource location of the interference measurement is specified.
  • the reference information notification unit is configured to: in the interference measurement reference information, specify a reference signal used by the interference measurement as follows: a common reference signal (CRS), or a channel state information measurement reference signal (CSI-RS) .
  • a reference signal used by the interference measurement as follows: a common reference signal (CRS), or a channel state information measurement reference signal (CSI-RS) .
  • CRS common reference signal
  • CSI-RS channel state information measurement reference signal
  • the reference information notification unit is configured to: the reference resource location of the interference measurement specified in the interference measurement reference information is a set of partial REs within one or more TTIs; wherein, the RE A collection is a collection of multiple REs that are not completely contiguous.
  • the reference information notification unit is configured to: notify the terminal of the interference measurement reference information by using high layer signaling, and specify, in the high layer signaling, a reference signal used by the interference measurement, and/or a reference for interference measurement. Resource location.
  • the reference information notification unit is configured to:
  • Passing the interference measurement reference information of the lbit in the high layer signaling indicating: performing interference measurement according to CRS, or performing interference measurement according to CSI-RS;
  • the interference measurement reference information of the lbit in the high-layer signaling indicating: performing interference measurement according to the CRS, performing interference measurement according to the CSI-RS, performing interference measurement according to a Demodulation Reference Signal (DMRS), Or make interference measurements based on the data;
  • DMRS Demodulation Reference Signal
  • the reference signal used for the interference measurement and the channel measurement reference information indication are jointly encoded together.
  • an embodiment of the present invention further provides an interference measurement apparatus, which is applied to a terminal, and includes: a reference information receiving unit, and an interference measuring unit,
  • the reference information receiving unit is configured to receive interference measurement reference information that is notified by the base station, where the interference measurement reference information specifies a reference signal used by the interference measurement, and/or a reference resource location of the interference measurement;
  • the interference measurement unit is configured to perform interference measurement according to a reference signal used by the interference measurement specified in the interference measurement reference information, and/or a reference resource position of the interference measurement.
  • modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps are fabricated as a single integrated circuit module.
  • the invention is not limited to any particular combination of hardware and software.
  • the base station specifies the reference signal used by the terminal interference measurement and/or the reference resource location of the interference measurement by using the interference measurement reference message; after receiving the interference measurement reference information, the terminal receives the interference measurement reference information.
  • the interference measurement is performed according to the reference signal specified by the base station, and/or the reference resource location of the interference measurement.

Abstract

本发明公开了一种干扰测量参考信息的通知方法、干扰测量方法及装置，基站通知终端干扰测量参考信息，干扰测量参考信息中指定干扰测量使用的参考信号、和/或干扰测量的参考资源位置。根据本发明方案，在分布式天线系统中，基站通过干扰测量参考消息，指定终端干扰测量使用的参考信号、和/或干扰测量的参考资源位置；终端收到干扰测量参考信息后，根据基站指定的参考信号、和/或干扰测量的参考资源位置进行干扰测量。

Description

一种干扰测量参考信息的通知方法、 干扰测量方法及装置
技术领域
本发明涉及通信技术领域，尤其涉及一种干扰测量参考信息的通知方法、 干扰测量方法及装置。 背景技术
在长期演进系统（Long Term Evolution, 简称为 LTE )中， 反映下行物理 信道状态的信息（ Channel State Information, 简称为 CSI )主要包括 3部分内 容： 信道质量指示 （ Channels Quality Indication, 简称为 CQI ) 、 预编码矩阵 指示 （ Pre-coding Matrix Indicator, 简称为 PMI ) 、 秩指示 （ Rank Indicator, 简称为 RI )
CQI为衡量下行信道质量好坏的一个指标。 在 3GPP TS 36.213协议中 CQI用 0 ~ 15的整数值来表示， 分别代表了不同的 CQI等级， 不同 CQI对应 着各自的调制方式和编码技术（ Modulation and Coding Scheme,简称为 MCS ), 共分 16种情况， 可以釆用 4比特信息来表示， 如下表 1所示：
CQI索引与 MCS之间关系
Figure imgf000003_0001
8 16QAM 490 1.9141
9 16QAM 616 2.4063
10 64QAM 466 2.7305
11 64QAM 567 3.3223
12 64QAM 666 3.9023
13 64QAM 772 4.5234
14 64QAM 873 5.1152
15 64QAM 948 5.5547
在 LTE中， CQI的反馈的含义是： UE根据信道质量， 选择一种合适的 传输块调制编码等级推荐给基站， 使得基站根据该信息进行调制编码可以最 好程度发挥其信道的传输能力。
从另外一个角度 CQI也可以理解为信道质量信息的量化， 如果质量好， 可以支持较高阶的调制编码方式， 获得更高的速度， 如果质量差， 只能以较 低阶的调制编码方式进行传输，以保障传输的鲁棒性；在 MIMO( Multiple Input and Multiple Output, 多输入多输出技术 ) 中， 一般来说推荐的 CQI有如下假 设：
(1)基站使用推荐的 RI作为空间复用的层数同时传输 RI个数据， 并使用 协议中规定的层映射方式；
(2)用推荐的 PMI对信号预编码处理；
(3)干扰和噪声由 UE测量得到。
根据 (1)、 （2)、 （3)并釆用终端实际使用的接收算法， 根据该接收算法处理 后得到的 SINR (信干噪比）来计算 CQI。
RI, PMI, 和 CQI的计算是有较成熟算法的， 比如利用容量最大准则选 取最佳的 RI, PMI和 CQI。 一般来讲， RI/PMI/CQI不是互相独立的选择的， 选择算法一般是统一的选择。 RI/PMI/CQI计算和选择的准确程度受到两个个 方面的影响： 信道测量和干扰噪声测量。 信道测量可以是根据 LTE/LTE-A 系统中的 CRS ( Common Reference Signal, 公共参考信号）或者是 CSI-RS ( Channel. State Information-Reference Signal, 信道状态信息测量参考信号）， 目前来讲， 由于较好的导频设计， 可 以通过 CRS或 CSI-RS测得较为准确的信道。
干扰噪声测量则是一个技术瓶颈， 错误的干扰信息可能导致层数与实际 信道质量状况不匹配， 比如实际只能支持 2层， 却由于干扰噪声信息的测量 错误， 误判为能够支持 4层， 这样可能导致误码率很高。 或者是， 实际只能 支持低阶的编码调制方式， 而误判为可以支持高阶编码调制， 也会导致误码 率过高。 反之， 则有可能能够支持多层及高阶编码调制， 但实际只使用了较 少层和低阶编码方式进行传输， 导致传输资源的浪费。
噪声的测量一般相对来说比较简单， 因为噪声一般由器件本身的原因产 生。 而干扰情况主要来自于其它小区或其它节点， 且由于其它小区或传输节 点的传输技术不同， 例如预编码不同、 或者发射信号不同都可能导致干扰情 况的变化。 因此， 干扰的测量是现有技术中需要解决的主要技术问题。
现有的干扰测量方法有很多种， 主要包括三种： 基于 CRS进行干扰测量 和基于 CSI-RS进行干扰测量， 基于专有解调导频或传输数据进行干扰测量。
基于 CRS的干扰测量， 其思想是， 根据 CRS受到的干扰作为数据信号 ( Data )受到的干扰。 这种方法是目前的一种主流方法， 一般认为 CRS和数 据受到的干扰情况相似， 且由于 CRS的密度较高， 根据信道的相关性， 可以 一定程度的分辨出干扰信息和参考信号的信息， 所以信道估计的性能也是比 较好的。但是经常存在 CRS在小区间的图样相同问题（密度较高的原因造成）。
另外一种方法即根据 CSI-RS进行干扰测量， 由于根据 CSI-RS进行干扰 测量时， CSI-RS密度较为稀疏一些， 所以干扰性能略差， 但是由于经常存在 CRS在小区间的图样相同问题（密度较高的原因造成） ， 因此， CRS测量到 的有一部分是来自其它小区的导频干扰而不是数据干扰， 从这个角度来讲会 有一些不准确。 而 CSI-RS则由于导频密度较低， 不存在该问题， 因而可以选 择使用 CSI-RS进行干扰测量。
基于专有解调导频或传输数据进行干扰测量的方法测到的干扰能比较准 确， 精度也较高。 但是其实现比较复杂， 并且需要依赖于之前的下行数据的 传输， 而下行数据的传输往往不是每个子帧都存在， 在频域上也只是部分位 置会有下行数据。
在目前的 LTE/LTE-A标准中，基于 CRS进行干扰测量和基于 CSI-RS进 行干扰测量， 基于专有解调导频或传输数据进行干扰测量的方法并没有进行 限定， 终端可以任意的使用其认为较佳的一种进行干扰测量也可以使用其它 未提及的方法。
上文中提到的干扰测量技术， 任意一种均可适合在传统的小区以及传统 的天线配置中的干扰测量， 因此基站可以不对终端做干扰测量的限定。 但现 有技术中系统不限定终端干扰测量方法存在的问题在于， 不适合分布式天线 系统。 发明内容
如图 1所示， 分布式天线系统的 CRS配置釆用 SFN ( Single Frequency Network, 单频网）的配置方法， 由每个传输节点取 1根或 2根天线虚拟为一 个 CRS Port (端口） ； 而 CSI-RS则釆用 Local (本地 ) 的配置方法， 每个传 输节点配置一套 CSI-RS。
为了获得空间分裂增益， 分布式天线系统经常釆用多用户空分复用的传 输方式， 同时同频位置不通的传输节点服务多个不同用户。 如图 2所示， 其 中的多个传输节点是属于同一个小区的， 经过进一步的分析发现， 在这种系 统中， 基于 CRS进行干扰测量， 并不能反映同时同频传输资源位置小区内其 它传输节点为 UE造成的干扰。因此较好的方式是使用 CSI-RS进行干扰测量。
类似的，有一些 UE是所有节点的天线釆用与 CRS端口相同的 SFN方式 合并为某个终端服务，基于 CSI-RS测量会计算出多余的干扰，所以基于 CRS 进行干扰测量会更加合适。
但现有技术中还存在如下技术问题： 针对分布式天线系统， 基站需要对 终端做干扰测量的限定， 并将相应的干扰测量参考信息通知给终端。
本发明解决的技术问题是提供一种干扰测量参考信息的通知方法、 干扰 测量及装置， 基站将干扰测量的参考信息通知给终端。 为解决上述技术问题，本发明提供了一种干扰测量参考信息的通知方法， 基站通知终端干扰测量参考信息， 所述干扰测量参考信息中指定干扰测 量使用的参考信号、 和 /或干扰测量的参考资源位置。
优选地，所述干扰测量参考信息中指定的所述干扰测量使用的参考信号， 包括： 公共参考信号（CRS ) 、 或者信道状态信息测量参考信号（CSI-RS ) 。
优选地， 所述干扰测量参考信息中指定的所述干扰测量的参考资源位置 为， 一个或多个传输时间间隔 （TTI ) 内的部分资源单元（RE ) 的集合。
优选地， 所述 RE的集合为多个不完全连续的 RE的集合。
优选地， 基站釆用高层信令通知终端所述干扰测量参考信息， 在所述高 层信令中指定所述干扰测量使用的参考信号、 和 /或干扰测量的参考资源位 置。
优选地， 所述干扰测量参考信息为 lbit, 用于指示： 根据 CRS做干扰测 量、 或者根据 CSI-RS做干扰测量； 或者，
所述干扰测量参考信息为 2bit, 用于指示： 根据 CRS做干扰测量、 根据 CSI-RS做干扰测量、 根据 DMRS做干扰测量、 或者根据数据做干扰测量。
优选地， 所述基站将所述干扰测量使用的参考信号和信道测量参考信息 指示一起联合编码。
本发明还提供了一种干扰测量方法， 所述方法包括：
终端接收基站通知的干扰测量参考信息， 并根据所述干扰测量参考信息 中指定的干扰测量使用的参考信号、 和 /或干扰测量的参考资源位置进行干扰 测量。
此外， 本发明还提供了一种干扰测量参考信息的通知装置， 应用于基站， 所述装置包括： 参考信息通知单元，
所述参考信息通知单元设置为： 通知终端干扰测量参考信息， 所述干扰 测量参考信息中指定干扰测量使用的参考信号、 和 /或干扰测量的参考资源位 置。
优选地， 所述参考信息通知单元设置为： 在所述干扰测量参考信息中指 定如下所述干扰测量使用的参考信号： 公共参考信号 （CRS ) 、 或者信道状 态信息测量参考信号 （CSI-RS ) 。
优选地， 所述参考信息通知单元设置为： 在所述干扰测量参考信息中指 定的所述干扰测量的参考资源位置为， 一个或多个 TTI内的部分 RE的集合； 其中， 所述 RE的集合为多个不完全连续的 RE的集合。
优选地， 所述参考信息通知单元设置为： 釆用高层信令通知终端所述干 扰测量参考信息， 在所述高层信令中指定所述干扰测量使用的参考信号、 和 / 或干扰测量的参考资源位置。
优选地， 所述参考信息通知单元设置为：
通过所述高层信令中 lbit的所述干扰测量参考信息， 指示： 根据 CRS做 干扰测量、 或者根据 CSI-RS做干扰测量；
或者， 通过所述高层信令中 lbit的所述干扰测量参考信息， 指示： 根据 CRS做干扰测量、 根据 CSI-RS做干扰测量、 根据 DMRS做干扰测量、 或者 根据数据做干扰测量；
或者， 将所述干扰测量使用的参考信号和信道测量参考信息指示一起联 合编码。
此外， 本发明还提供了一种干扰测量装置， 应用于终端， 包括： 参考信 息接收单元和干扰测量单元， 所述参考信息接收单元设置为： 接收基站通知的干扰测量参考信息， 其 中所述干扰测量参考信息中指定了干扰测量使用的参考信号、 和 /或干扰测量 的参考资源位置；
所述干扰测量单元设置为： 根据所述干扰测量参考信息中指定的干扰测 量使用的参考信号、 和 /或干扰测量的参考资源位置进行干扰测量。
根据本发明上述方案， 在分布式天线系统中， 基站通过干扰测量参考消 息， 指定终端干扰测量使用的参考信号、 和 /或干扰测量的参考资源位置； 终 端收到干扰测量参考信息后， 根据基站指定的参考信号、 和 /或干扰测量的参 考资源位置进行干扰测量。 附图概述
此处所说明的附图用来提供对本发明的进一步理解， 构成本申请的一部 分， 本发明的示意性实施例及其说明用于解释本发明， 并不构成对本发明的 不当限定。 在附图中：
图 1为分布式天线系统的 CRS配置示意图；
图 2为分布式天线系统的 CSI-RS配置与服务关系的示意图；
图 3为本发明实施例的通知干扰测量的参考资源位置的示意图。 本发明的较佳实施方式
本实施方式提供了一种干扰测量参考信息的通知方法， 包括：
基站通知终端干扰测量参考信息， 所述干扰测量参考信息中指定了干扰 测量使用的参考信号、 和 /或干扰测量的参考资源位置。
其中， 所述干扰测量参考信息中指定的所述干扰测量使用的参考信号， 包括： CRS、 或者 CSI-RS。
所述干扰测量参考信息中指定的所述干扰测量的参考资源位置， 为一个 或多个 TTK Transmission Time Interval,传输时间间隔）内的部分 REs( Resource Element, 资源单元） 的集合。
其中，所述的 TTI内的部分 RE集合，为多个不完全连续的 REs( Resource Element, 资源单元） 集合， 其中 RE为 LTE定义的最小资源单位。
进一步的， 终端根据基站通知的干扰测量参考信息中指定的干扰测量使 用的参考信号、 和 /或干扰测量的参考资源位置进行干扰测量。
进一步的， 基站釆用高层信令通知终端所述干扰测量使用的参考信号、 和 /或干扰测量的参考资源位置。
进一步的， 所述干扰测量参考信息可以为 lbit或 2bit的指示信息。
进一步的， 所述基站还可以将所述干扰测量使用的参考信号和信道测量 参考信息指示一起联合编码。
为使本发明的目的、 技术方案和优点更加清楚明白， 下文中将结合附图 对本发明的实施例进行详细说明。 需要说明的是， 在不冲突的情况下， 本申 请中的实施例及实施例中的特征可以相互任意组合。
实施例一
本实施例描述的场景基于分布式多天线系统， 其中， 天线与天线端口的 配置如图 2所示。
首先， 基站确定一个终端的信道测量参考导频为 CSI-RS , 该终端根据 CSI-RS选择服务节点，例如 UE1 ,选择服务节点为 RRH1( Remote Radio Head, 远端射频收发模块 ) , 该 RRH1为 UE1服务的同时同频位置， RRH2也在为 UE2服务， RRH3也在为 UE3服务， Macro (宏基站 )也在为 UE4服务。 此 时 UE有受到 RRH2,RRH3, Macro发射的信号干扰。
这些发射信号的干扰不仅对 UE1的数据有干扰， 同时对 UE1的 CSI-RS 也有干扰。 但是， 由于 CRS的位置 RRH2, RRH3 , Macro是不发数据的， RRHl,RRH2,RRH3,Macro共同发射 CRS参考信号， 进行 SFN合并， 因此， CRS不能体现用户数据受到的干扰。
而信道质量信息的测量和上报主要是为了数据的传输， 因此， 此时基站 选择 CSI-RS为干扰测量的参考信号，并通过高层信令将干扰测量参考信息通 知终端。
终端收到所述干扰测量参考信息后， 根据 CSI-RS来进行干扰测量。
实施例二
本实施例描述的场景基于分布式多天线系统， 其中， 天线与天线端口的 配置如图 2所示。
首先，基站确定一个终端的信道测量参考导频为 CRS, 为 TDD模式， 终 端不反馈 PMI和 RI,只反馈 CQL
但该终端根据 CSI-RS测量 RSRP (大尺度衰落的信道信息， 体现用户与 传输节点距离）选择服务节点， 例如 UE1 , 选择服务节点为 RRH1 , 该 RRH1 为 UE1服务的同时同频位置 , RRH2也在为 UE2服务， RRH3也在为 UE3服 务， Macro也在为 UE4服务。 此时 UE有受到 RRH2,RRH3, Macro发射的信 号干扰。 这些发射信号的干扰不光对 UE1的数据有干扰， 同时对 UE1的 CSI-RS 有干扰。 但是， 由于 CRS 的位置 RRH2,RRH3,Macro 是不发数据的， RRHl,RRH2,RRH3,Macro共同发射 CRS参考信号， 进行 SFN合并， 因此， CRS不能体现用户数据受到的干扰。
而信道质量信息的测量和上报主要是为了数据的传输， 因此， 此时基站 选择 CSI-RS为干扰测量的参考信号，并通过高层信令将干扰测量参考信息通 知终端。
终端收到该干扰测量参考信息后， 根据 CSI-RS来进行干扰测量。
实施例三
本实施例描述的场景基于分布式多天线系统， 其中， 天线与天线端口的 配置如图 2所示。
首先， 基站确定一个终端的信道测量参考导频为 CRS, 且解调导频也为 CRS。数据传输时，各节点釆用与 CRS相同的 SFN合并方式为同一用户发送 数据。 此时， 同时同频上所有节点只为同一个用户服务， 不存在小区内的节 点发射信号带来的干扰， 只存在小区外的节点发射信号带来的干扰。
此时， 根据 CSI-RS可以测到来自小区内节点的干扰， 但是实际上， 数据 没有收到小区内节点的干扰， 小区内节点为其发射的都是有用数据， 因此， CRI-RS不能很好的表征干扰情况。 此时基站选择 CRS为干扰测量的参考信 号， 并通过高层信令将干扰测量参考信息通知终端。
终端收到该干扰测量参考信息后， 根据 CRS来进行干扰测量。
具体地， 上述实施例一、 二、 三中， 基站通过干扰测量参考信息来通知 终端干扰测量使用的参考信号时， 可釆用 lbit信息， 分别代表 2个状态， 具 体如下表 2所示：
干扰测量参考信息表一
Figure imgf000011_0001
另外也可釆用 2bit信息， 分别代表 4个状态， 具体如下表 3所示: 表 3 干扰测量参考信息表二
Figure imgf000012_0001
实施例四
本实施例中， 基站将信道测量参考信息指示和干扰测量参考信息一起联 合编码， 例如可釆用 2bit的情况， 如下表 4所示， 分别表示 4个状态：
表 4 干扰测量参考信息表三
Figure imgf000012_0002
实施例五
本实施例中， 基站可以通过通知干扰测量的参考资源位置的方式， 来代 替上述通知干扰测量参考导频的方式。
如图 3所示的传输块结构图， 时域一个子帧， 时频域一个 RB ( Resource Block, LTE定义的资源块）每个格栅为一个 RE。 基站在通知干扰测量的参 考资源位置时， 可釆用指定的一个或多个 TTI内的 RE的集合。
比如， 基站通知 UE, 干扰的参考资源位置， 在一个 TTI内的为以下 RE
{(0,0), (0,1), (3,0), (3,1), (6,0), (6,1), (9,0), (9,1) }。
比如， 基站通知 UE, 干扰的参考资源位置， 在一个 TTI内的为以下 RE
(k,l)表示一个 RE, 集合为 {(0,5), (0,6), (0,12), (0,13), (1,5), (1,6), (1,12), (1,13), (5,5), (5,6), (5,12), (5,13), (6,5), (6,6), (6,12), (6,13), (10,5), (10,6), (10,12): (10,13), (11,12), (11,5), (11,6), (11,13)}。
比如， 基站通知 UE, 干扰的参考资源位置， 在一个 TTI内的为以下 RE
{(8,9), (8,10), (9,9), (9,10)}。
此外， 本发明实施例中还提供了一种干扰测量参考信息的通知装置， 应 用于基站， 该装置主要包括： 参考信息通知单元，
所述参考信息通知单元用于， 通知终端干扰测量参考信息， 所述干扰测 量参考信息中指定干扰测量使用的参考信号、 和 /或干扰测量的参考资源位 置。
进一步地， 所述参考信息通知单元用于， 在所述干扰测量参考信息中指 定如下所述干扰测量使用的参考信号： 公共参考信号 （CRS ) 、 或者信道状 态信息测量参考信号 （CSI-RS ) 。
进一步地， 所述参考信息通知单元用于， 在所述干扰测量参考信息中指 定的所述干扰测量的参考资源位置为， 一个或多个 TTI内的部分 RE的集合； 其中， 所述 RE的集合为多个不完全连续的 RE的集合。
进一步地， 所述参考信息通知单元用于， 釆用高层信令通知终端所述干 扰测量参考信息， 在所述高层信令中指定所述干扰测量使用的参考信号、 和 / 或干扰测量的参考资源位置。
进一步地， 所述参考信息通知单元用于，
通过所述高层信令中 lbit的所述干扰测量参考信息， 指示： 根据 CRS做 干扰测量、 或者根据 CSI-RS做干扰测量；
或者， 通过所述高层信令中 lbit的所述干扰测量参考信息， 指示： 根据 CRS做干扰测量、根据 CSI-RS做干扰测量、根据解调参考信号（ Demodulation Reference Signal, DMRS )做干扰测量、 或者根据数据做干扰测量；
或者， 将所述干扰测量使用的参考信号和信道测量参考信息指示一起联 合编码。
此外， 本发明实施例中还提供了一种干扰测量装置， 应用于终端， 包括： 参考信息接收单元， 和干扰测量单元，
所述参考信息接收单元用于， 接收基站通知的干扰测量参考信息， 其中 所述干扰测量参考信息中指定了干扰测量使用的参考信号、 和 /或干扰测量的 参考资源位置；
所述干扰测量单元用于， 根据所述干扰测量参考信息中指定的干扰测量 使用的参考信号、 和 /或干扰测量的参考资源位置进行干扰测量。
以上仅为本发明的优选实施案例而已， 并不用于限制本发明， 本发明还 可有其他多种实施例， 在不背离本发明精神及其实质的情况下， 熟悉本领域 的技术人员可根据本发明做出各种相应的改变和变形， 但这些相应的改变和 变形都应属于本发明所附的权利要求的保护范围。
显然， 本领域的技术人员应该明白， 上述的本发明的各模块或各步骤可 以用通用的计算装置来实现， 它们可以集中在单个的计算装置上， 或者分布 在多个计算装置所组成的网络上， 可选地， 它们可以用计算装置可执行的程 序代码来实现， 从而， 可以将它们存储在存储装置中由计算装置来执行， 并 且在某些情况下， 可以以不同于此处的顺序执行所示出或描述的步骤， 或者 将它们分别制作成各个集成电路模块， 或者将它们中的多个模块或步骤制作 成单个集成电路模块来实现。 这样， 本发明不限制于任何特定的硬件和软件 结合。 工业实用性 本发明实施例的方案在分布式天线系统中 ,基站通过干扰测量参考消息 , 指定终端干扰测量使用的参考信号、 和 /或干扰测量的参考资源位置； 终端收 到干扰测量参考信息后， 根据基站指定的参考信号、 和 /或干扰测量的参考资 源位置进行干扰测量。

Claims

权 利 要 求 书
1、 一种干扰测量参考信息的通知方法， 其中，
基站通知终端干扰测量参考信息， 所述干扰测量参考信息中指定干扰测 量使用的参考信号、 和 /或干扰测量的参考资源位置。
2、 如权利要求 1所述的方法， 其中，
所述干扰测量参考信息中指定的所述干扰测量使用的参考信号， 包括： 公共参考信号 （CRS ) 、 或者信道状态信息测量参考信号 （CSI-RS ) 。
3、 如权利要求 1所述的方法， 其中，
所述干扰测量参考信息中指定的所述干扰测量的参考资源位置为， 一个 或多个传输时间间隔 （TTI ) 内的部分资源单元（RE ) 的集合。
4、 如权利要求 3所述的方法， 其中，
所述 RE的集合为多个不完全连续的 RE的集合。
5、 如权利要求 1、 2、 3或 4之任一项所述的方法， 其中，
基站釆用高层信令通知终端所述干扰测量参考信息， 在所述高层信令中 指定所述干扰测量使用的参考信号、 和 /或干扰测量的参考资源位置。
6、 如权利要求 5所述的方法， 其中，
所述干扰测量参考信息为 1比特， 用于指示： 根据 CRS做干扰测量、 或 者根据 CSI-RS做干扰测量； 或者，
所述干扰测量参考信息为 2比特， 用于指示： 根据 CRS做干扰测量、 根 据 CSI-RS做干扰测量、 根据解调参考信号（DMRS )做干扰测量、 或者根据 数据做干扰测量。
7、 如权利要求 5所述的方法， 其中，
所述基站将所述干扰测量使用的参考信号和信道测量参考信息指示一起 联合编码。
8、 一种干扰测量方法， 所述方法包括：
终端接收基站通知的干扰测量参考信息， 并根据所述干扰测量参考信息 中指定的干扰测量使用的参考信号、 和 /或干扰测量的参考资源位置进行干扰 测量。
9、 一种干扰测量参考信息的通知装置， 应用于基站， 所述装置包括： 参 考信息通知单元，
所述参考信息通知单元设置为： 通知终端干扰测量参考信息， 所述干扰 测量参考信息中指定干扰测量使用的参考信号、 和 /或干扰测量的参考资源位 置。
10、 如权利要求 9所述的装置， 其中，
所述参考信息通知单元设置为： 在所述干扰测量参考信息中指定如下所 述干扰测量使用的参考信号： 公共参考信号 （CRS ) 、 或者信道状态信息测 量参考信号 （ CSI-RS ) 。
11、 如权利要求 9所述的装置， 其中，
所述参考信息通知单元设置为： 在所述干扰测量参考信息中指定的所述 干扰测量的参考资源位置为， 一个或多个传输时间间隔（TTI )内的部分资源 单元（RE )的集合； 其中， 所述 RE的集合为多个不完全连续的 RE的集合。
12、 如权利要求 9、 10或 11之任一项所述的装置， 其中，
所述参考信息通知单元设置为： 釆用高层信令通知终端所述干扰测量参 考信息， 在所述高层信令中指定所述干扰测量使用的参考信号、 和 /或干扰测 量的参考资源位置。
13、 如权利要求 12所述的装置， 其中， 所述参考信息通知单元设置为： 通过所述高层信令中 1比特的所述干扰测量参考信息， 指示： 根据 CRS 做干扰测量、 或者根据 CSI-RS做干扰测量；
或者， 通过所述高层信令中 1 比特的所述干扰测量参考信息， 指示： 根 据 CRS做干扰测量、 根据 CSI-RS做干扰测量、 根据解调参考信号（DMRS ) 做干扰测量、 或者根据数据做干扰测量；
或者， 将所述干扰测量使用的参考信号和信道测量参考信息指示一起联 合编码。
14、 一种干扰测量装置， 应用于终端， 包括： 参考信息接收单元和干扰 测量单元，
所述参考信息接收单元设置为： 接收基站通知的干扰测量参考信息， 其 中所述干扰测量参考信息中指定了干扰测量使用的参考信号、 和 /或干扰测量 的参考资源位置；
所述干扰测量单元设置为： 根据所述干扰测量参考信息中指定的干扰测 量使用的参考信号、 和 /或干扰测量的参考资源位置进行干扰测量。
PCT/CN2011/085023 2011-07-15 2011-12-30 一种干扰测量参考信息的通知方法、干扰测量方法及装置 WO2012155520A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP11865564.6A EP2763480A4 (en) 2011-07-15 2011-12-30 METHOD FOR NOTIFYING INTERFERENCE MEASUREMENT REFERENCE INFORMATION, AND INTERFERENCE MEASURING METHOD AND DEVICE
US14/364,701 US9629014B2 (en) 2011-07-15 2011-12-30 Method for notifying interference measurement reference information, method and device for measuring interference

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201110199384.0A CN102300244B (zh) 2011-07-15 2011-07-15 一种干扰测量参考信息的通知方法、干扰测量方法及装置
CN201110199384.0 2011-07-15

Publications (1)

Publication Number Publication Date
WO2012155520A1 true WO2012155520A1 (zh) 2012-11-22

Family

ID=45360337

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2011/085023 WO2012155520A1 (zh) 2011-07-15 2011-12-30 一种干扰测量参考信息的通知方法、干扰测量方法及装置

Country Status (4)

Country Link
US (1) US9629014B2 (zh)
EP (1) EP2763480A4 (zh)
CN (1) CN102300244B (zh)
WO (1) WO2012155520A1 (zh)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9923649B2 (en) 2013-04-08 2018-03-20 Zte Corporation Interference measurement method, network-side device and terminal device for improving the interference measurement effect and thus the demodulation performance of data and control channels
US10554281B2 (en) 2011-08-12 2020-02-04 Interdigital Patent Holdings, Inc. Interference measurement in wireless networks
US11039329B2 (en) 2012-06-04 2021-06-15 Interdigital Patent Holdings, Inc. Communicating channel state information (CSI) of multiple transmission points
US11540156B2 (en) 2013-05-08 2022-12-27 Interdigital Patent Holdings, Inc. Methods, systems and apparatuses for network assisted interference cancellation and/or suppression (NAICS) in long-term evolution (LTE) systems
US11621743B2 (en) 2011-01-07 2023-04-04 Interdigital Patent Holdings, Inc. Communicating channel state information (CSI) of multiple transmission points

Families Citing this family (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102300244B (zh) 2011-07-15 2019-02-05 中兴通讯股份有限公司 一种干扰测量参考信息的通知方法、干扰测量方法及装置
WO2013110220A1 (en) * 2012-01-29 2013-08-01 Nokia Corporation Interference measurement among multiple transmission points
US9008585B2 (en) 2012-01-30 2015-04-14 Futurewei Technologies, Inc. System and method for wireless communications measurements and CSI feedback
US9819462B2 (en) 2012-01-30 2017-11-14 Alcatel Lucent Method and apparatus for signaling to support flexible reference signal configuration
CN103959846B (zh) * 2012-02-01 2018-01-02 富士通株式会社 一种干扰测量方法和装置
CN108282325B (zh) * 2012-03-19 2022-03-08 北京三星通信技术研究有限公司 一种lte tdd的特殊子帧信号传输方法和设备
WO2013166657A1 (zh) * 2012-05-08 2013-11-14 富士通株式会社 参考信号的测量方法、基站及用户设备
AU2013260212B2 (en) 2012-05-10 2015-12-10 Telefonaktiebolaget L M Ericsson (Publ) Methods and arrangements for CSI reporting
CN103391124B (zh) * 2012-05-10 2018-06-19 中兴通讯股份有限公司 信道状态信息的配置方法、反馈方法、基站和终端
US9537638B2 (en) * 2012-05-11 2017-01-03 Qualcomm Incorporated Method and apparatus for performing coordinated multipoint feedback under multiple channel and interference assumptions
CN103517313B (zh) * 2012-06-21 2016-10-05 中国移动通信集团设计院有限公司 一种检测干扰信号的方法和装置
WO2014007512A1 (ko) * 2012-07-02 2014-01-09 엘지전자 주식회사 무선 통신 시스템에서 채널상태정보 보고 방법 및 장치
US10645599B2 (en) 2012-07-02 2020-05-05 Lg Electronics Inc. Method and device for reporting channel state information in wireless communication system
JP6091816B2 (ja) * 2012-09-11 2017-03-08 株式会社Ｎｔｔドコモ 無線通信システム、基地局装置、移動端末装置、及び干渉測定方法
US8923880B2 (en) * 2012-09-28 2014-12-30 Intel Corporation Selective joinder of user equipment with wireless cell
CN103716078B (zh) * 2012-09-29 2019-03-12 中兴通讯股份有限公司 一种信道状态信息的处理方法及装置
CN103891337B (zh) * 2012-09-29 2018-05-29 华为技术有限公司 干扰测量方法、基站和用户设备
CN104782181A (zh) * 2012-10-06 2015-07-15 爱立信(中国)通信有限公司 CoMP下EPDCCH/PDSCH解调的CRS干扰减轻
KR102018316B1 (ko) * 2013-02-28 2019-09-05 삼성전자 주식회사 무선 통신 시스템에서 간섭 측정을 위한 제어정보의 전송 방법 및 장치
CN104038320B (zh) 2013-03-04 2019-03-01 中兴通讯股份有限公司 资源映射、接收方法及装置、信令通知、获取方法及装置
CN104284361A (zh) * 2013-07-08 2015-01-14 中兴通讯股份有限公司 一种干扰测量方法、网络侧设备及终端侧设备
US11019620B2 (en) 2014-05-19 2021-05-25 Qualcomm Incorporated Apparatus and method for inter-band pairing of carriers for time division duplex transmit- and receive-switching and its application to multiplexing of different transmission time intervals
US11432305B2 (en) 2014-05-19 2022-08-30 Qualcomm Incorporated Apparatus and method for synchronous multiplexing and multiple access for different latency targets utilizing thin control
CN106171030B (zh) * 2014-11-06 2020-03-10 华为技术有限公司 参考信号测量方法及装置
CN105680999B (zh) * 2014-11-17 2019-05-21 电信科学技术研究院 一种信道状态信息测量方法、终端和网络设备
CN105828377A (zh) * 2014-12-01 2016-08-03 财团法人资讯工业策进会 包含同时同频全双工通信的无线通信系统与方法
GB2534572A (en) * 2015-01-27 2016-08-03 Kathrein Werke Kg Analysis of blocking interferers
CN105991231B (zh) * 2015-02-28 2021-07-30 中兴通讯股份有限公司 获取信道状态信息csi的方法及装置
CN106559807B (zh) * 2015-09-25 2021-08-20 华为技术有限公司 一种数据传输方法以及相关设备
EP3411973B1 (en) * 2016-02-03 2020-10-14 NTT DoCoMo, Inc. User equipment and method for selection of csi reference signal and csi reporting in a beam forming system with multiple beams
WO2018059478A1 (zh) * 2016-09-30 2018-04-05 华为技术有限公司 Csi测量方法及装置
CN107888268B (zh) 2016-09-30 2023-03-31 华为技术有限公司 Csi测量方法及装置
CN108023701B (zh) * 2016-11-04 2021-07-20 华为技术有限公司 一种信息传输方法、装置和系统
EP3547575A4 (en) * 2016-12-07 2019-12-11 Mitsubishi Electric Corporation TRANSMISSION DEVICE, COMMUNICATION SYSTEM AND TRANSMISSION METHOD
CN108289311B (zh) * 2017-01-09 2022-10-14 中兴通讯股份有限公司 干扰测量方法及装置和定时偏差测量方法
CA3057541A1 (en) * 2017-03-24 2018-09-27 Huawei Technologies Co., Ltd. Interference measurement method and related device
US11595841B2 (en) * 2017-03-31 2023-02-28 Nec Corporation Method and device for interference measurement
WO2018227391A1 (en) * 2017-06-13 2018-12-20 Nec Corporation Methods, terminal device, network devices and apparatuses for interference measurement
CN110741595B (zh) * 2017-06-14 2023-04-25 株式会社Ntt都科摩 频率资源分配的方法
CN109150337B (zh) 2017-06-16 2020-09-11 华为技术有限公司 一种干扰功率测量方法及设备
CN109600199B (zh) * 2017-09-30 2021-01-08 维沃移动通信有限公司 反馈多用户信道状态信息的方法及装置
CN110049510B (zh) * 2018-01-16 2021-01-15 中国移动通信有限公司研究院 交叉链路干扰测量通知方法、网络侧设备及移动通信终端
US20230072049A1 (en) * 2019-02-15 2023-03-09 Telefonaktiebolaget Lm Ericsson (Publ) Timing alignment for wireless device to wireless device measurements
WO2021163942A1 (zh) * 2020-02-19 2021-08-26 华为技术有限公司 一种干扰测量方法及装置
WO2022151328A1 (en) * 2021-01-15 2022-07-21 Zte Corporation Methods, apparatus and systems for channel state information measurement and report
CN115730676A (zh) * 2021-08-31 2023-03-03 中兴通讯股份有限公司 自适应编码调制方法、装置、电子设备和存储介质

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101931957A (zh) * 2009-06-22 2010-12-29 大唐移动通信设备有限公司 一种控制下行测量参考信号干扰的方法和设备
WO2011013989A2 (en) * 2009-07-28 2011-02-03 Lg Electronics Inc. Method and apparatus for transmitting reference signal in multiple input multiple output communication system
CN102006603A (zh) * 2009-08-28 2011-04-06 中兴通讯股份有限公司 发射功率获取方法、信道质量/干扰强度测量方法及系统
CN102300244A (zh) * 2011-07-15 2011-12-28 中兴通讯股份有限公司 一种干扰测量参考信息的通知方法、干扰测量方法及装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8300596B2 (en) * 2006-10-30 2012-10-30 Nokia Corporation Apparatus, method and computer program product providing extended measurement control signal for handoff measurement under interference coordination
US8358979B2 (en) * 2009-02-04 2013-01-22 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for measuring interference in a telecommunications system
KR20090094752A (ko) * 2008-03-03 2009-09-08 엘지전자 주식회사 무선 통신 시스템에서 간섭 정보 신호를 전송하는 방법
US8351367B2 (en) * 2008-04-24 2013-01-08 Marvell World Trade Ltd. Signaling of unused resources
EP2228914B1 (en) * 2009-03-11 2020-09-02 Electronics and Telecommunications Research Institute Methods for controlling inter cell interference in cellular mobile system
US8472539B2 (en) * 2009-04-07 2013-06-25 Lg Electronics Inc. Method of transmitting power information in wireless communication system
US8983479B2 (en) * 2009-04-28 2015-03-17 Electronics And Telecommunications Research Institute Method for transmitting dedicated reference signal, and method for receiving dedicated reference signal
KR101819502B1 (ko) * 2010-02-23 2018-01-17 엘지전자 주식회사 간섭 측정 방법 및 단말과, 간섭 정보 수신 방법 및 기지국
US8929291B2 (en) * 2010-03-21 2015-01-06 Lg Electronics Inc. Apparatus and method for transmitting/receiving uplink power control information

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101931957A (zh) * 2009-06-22 2010-12-29 大唐移动通信设备有限公司 一种控制下行测量参考信号干扰的方法和设备
WO2011013989A2 (en) * 2009-07-28 2011-02-03 Lg Electronics Inc. Method and apparatus for transmitting reference signal in multiple input multiple output communication system
CN102006603A (zh) * 2009-08-28 2011-04-06 中兴通讯股份有限公司 发射功率获取方法、信道质量/干扰强度测量方法及系统
CN102300244A (zh) * 2011-07-15 2011-12-28 中兴通讯股份有限公司 一种干扰测量参考信息的通知方法、干扰测量方法及装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2763480A4 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11621743B2 (en) 2011-01-07 2023-04-04 Interdigital Patent Holdings, Inc. Communicating channel state information (CSI) of multiple transmission points
US10554281B2 (en) 2011-08-12 2020-02-04 Interdigital Patent Holdings, Inc. Interference measurement in wireless networks
US11316572B2 (en) 2011-08-12 2022-04-26 Interdigital Patent Holdings, Inc. Interference measurement in wireless networks
US11039329B2 (en) 2012-06-04 2021-06-15 Interdigital Patent Holdings, Inc. Communicating channel state information (CSI) of multiple transmission points
US9923649B2 (en) 2013-04-08 2018-03-20 Zte Corporation Interference measurement method, network-side device and terminal device for improving the interference measurement effect and thus the demodulation performance of data and control channels
US11540156B2 (en) 2013-05-08 2022-12-27 Interdigital Patent Holdings, Inc. Methods, systems and apparatuses for network assisted interference cancellation and/or suppression (NAICS) in long-term evolution (LTE) systems
US11889338B2 (en) 2013-05-08 2024-01-30 Interdigital Patent Holdings, Inc. Methods, systems and apparatuses for network assisted interference cancellation and/or suppression (NAICS) in long-term evolution (LTE) systems

Also Published As

Publication number Publication date
CN102300244A (zh) 2011-12-28
EP2763480A1 (en) 2014-08-06
EP2763480A4 (en) 2015-04-15
US9629014B2 (en) 2017-04-18
US20150124717A1 (en) 2015-05-07
CN102300244B (zh) 2019-02-05

Similar Documents

Publication Publication Date Title
WO2012155520A1 (zh) 一种干扰测量参考信息的通知方法、干扰测量方法及装置
US9641233B2 (en) Reference signal measurement method and apparatus for use in wireless communication system including plural base stations with distributed antennas
CN111095844B (zh) 移动通信系统中用于支持重复的csi-rs资源传输的方法和设备
EP2770770B1 (en) Interference measurement signalling notification, interference measurement and feedback method and device thereof
KR102520403B1 (ko) 무선 통신 시스템에서 채널 상태 정보 보고 방법 및 장치
US10454554B2 (en) Interference measurement method and apparatus for use in mobile communication system
CN102291212B (zh) 信道状态信息的反馈方法和设备
US10341080B2 (en) Method and apparatus for determining quantity of channel quality indicators (CQI)
CN109155693B (zh) 低复杂度多配置csi报告
TWI587658B (zh) 在無線通訊系統中用於發送通道回饋訊息的方法和裝置以及用於接收通道回饋訊息的方法和裝置
WO2014161183A1 (zh) 接收和发送参考信号的方法及装置、用户设备和基站
US9794818B2 (en) Method for acquiring channel quality indicator, user equipment, evolved node B and system
WO2014008779A1 (zh) 上报信道状态信息的方法和装置
WO2012062197A1 (zh) 一种信道质量信息的上报方法及其装置
WO2022048497A1 (zh) 信道状态信息发送方法、信道状态信息接收方法、信令信息传输方法、节点和介质
JP2019515531A (ja) 伝送モードについての情報を伝送するための方法及びシステム、ネットワークデバイス、並びに端末デバイス
CN113852986A (zh) 信息上报方法、装置、电子设备及可读存储介质
WO2014107981A1 (zh) 反馈控制装置、反馈装置及多用户mimo反馈方法
US11888773B2 (en) Method and apparatus for reporting beam information in next-generation communication system
US11564237B2 (en) Methods and devices for configuration of interference measurement parameters
JP7216813B2 (ja) チャネル状態情報を決定するための方法および装置
WO2019051796A1 (zh) 一种信道解调方法及相关设备

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: 11865564

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

REEP Request for entry into the european phase

Ref document number: 2011865564

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2011865564

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 14364701

Country of ref document: US