WO2018171511A1 - 信道状态信息反馈方法、用户设备和基站 - Google Patents

信道状态信息反馈方法、用户设备和基站 Download PDF

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Publication number
WO2018171511A1
WO2018171511A1 PCT/CN2018/079225 CN2018079225W WO2018171511A1 WO 2018171511 A1 WO2018171511 A1 WO 2018171511A1 CN 2018079225 W CN2018079225 W CN 2018079225W WO 2018171511 A1 WO2018171511 A1 WO 2018171511A1
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Prior art keywords
csi feedback
semi
feedback
persistent scheduling
periodic
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PCT/CN2018/079225
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English (en)
French (fr)
Inventor
张萌
刘仁茂
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夏普株式会社
张萌
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Priority to US16/494,674 priority Critical patent/US20200092849A1/en
Publication of WO2018171511A1 publication Critical patent/WO2018171511A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • 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

Definitions

  • the present invention relates to the field of wireless communication technologies. More specifically, the present invention relates to methods of different types of channel state information feedback and corresponding user equipment and base stations.
  • NTT DOCOMO proposed a new research project on 5G technology standards (see Non-patent literature: RP-160671) :New SID Proposal: Study on New Radio Access Technology), and approved.
  • the goal of the research project is to develop a new wireless (New Radio: NR) access technology to meet all 5G application scenarios, requirements and deployment environments.
  • NR mainly has three application scenarios: Enhanced Mobile Broadband (eMBB), Massive Machine Type Communication (mMTC) and Ultra Reliable and Low Latency Communications (URLLC).
  • eMBB Enhanced Mobile Broadband
  • mMTC Massive Machine Type Communication
  • URLLC Ultra Reliable and Low Latency Communications
  • the standardization of NR is carried out in two phases: the first phase of standardization will be completed in mid-2018; the second phase of standardization will be completed by the end of 2019.
  • the first-stage standard specification is forward-compatible with the second-stage standard specification, while the second-stage standard specification is based on the first-stage standard specification and meets all the requirements of the 5G NR technical standard.
  • UE feedback types for channel state information can be classified into two categories: periodic feedback and aperiodic feedback.
  • the periodic feedback refers to that the UE periodically feeds back the channel state information according to the information of the high-level configuration of the base station, and the aperiodic feedback is the feedback channel state information that the base station uses the trigger mode to make the UE untimed.
  • the UE transmits only aperiodic feedback in the subframe.
  • SPS Semi-Persistent Schedluling
  • the CSI type-1 may include parameters such as a resource selection indication, a precoding matrix indication, and a channel quality feedback, and the feedback accuracy may be slightly lower than the CSI type-2.
  • the CSI type-2 may include higher-precision feedback parameters, such as parameters including analog channel state information feedback, channel covariance matrix, and channel eigenvector.
  • a method performed by a user equipment UE comprising: receiving configuration information from a base station, the configuration information being related to channel state information CSI feedback of the UE, the CSI feedback including periodicity Two or more of CSI feedback, aperiodic CSI feedback, and semi-persistent scheduling CSI feedback; and performing corresponding CSI feedback according to the configuration information.
  • the configuration information is related to periodic CSI feedback and semi-persistent scheduling CSI feedback. If the periodic CSI feedback and the semi-persistent scheduling CSI feedback overlap in a certain time slot within a certain time interval, only semi-persistent scheduling CSI feedback is performed throughout the time interval. Alternatively, if the periodic CSI feedback overlaps with the semi-persistent scheduling CSI feedback in a certain time slot within a certain time interval, only semi-persistent scheduling CSI feedback is performed in the time slot.
  • the periodic CSI feedback and the semi-persistent scheduling CSI feedback overlap in a certain time slot within a certain time interval, if the feedback types of the periodic CSI feedback and the semi-persistent scheduling CSI feedback are different, then at that time Cyclic CSI feedback and semi-persistent scheduling CSI feedback are performed in the slot; and if the feedback types of the periodic CSI feedback and the semi-persistent scheduling CSI feedback are the same, only semi-persistent scheduling CSI feedback is performed in the slot.
  • the configuration information is related to periodic CSI feedback and aperiodic CSI feedback. If the periodic CSI feedback overlaps with the aperiodic CSI feedback in a certain time slot within a certain time interval, if the periodic CSI feedback is different from the feedback type of the aperiodic CSI feedback, then the time slot is executed in the time slot. Periodic CSI feedback and aperiodic CSI feedback; and if the periodic CSI feedback is the same as the feedback type of the aperiodic CSI feedback, only the aperiodic CSI feedback is performed in the time slot.
  • the configuration information is related to aperiodic CSI feedback and semi-persistent scheduling CSI feedback. If the aperiodic CSI feedback overlaps with the semi-persistent scheduling CSI feedback in a certain time slot in a certain time interval, if the feedback type of the aperiodic CSI feedback and the semi-persistent scheduling CSI feedback is not the same, then the time slot is in the time slot. Performing aperiodic CSI feedback and semi-persistent scheduling CSI feedback in the slot, and performing aperiodic CSI feedback or semi-persistent scheduling CSI in the slot if the aperiodic CSI feedback is the same as the feedback type of the semi-persistent scheduling CSI feedback. Feedback.
  • a user equipment UE including a processor and a memory. Instructions are stored on the memory. The instructions, when executed by the processor, perform the methods described in accordance with the present disclosure.
  • a method performed by a base station comprising: generating configuration information related to channel state information CSI feedback of a user equipment UE, the CSI feedback including periodic CSI feedback, Two or more of aperiodic CSI feedback and semi-persistent scheduling CSI feedback; and transmitting the configuration information to the UE.
  • a base station includes a processor and a memory. Instructions are stored on the memory. The instructions, when executed by the processor, perform the methods described in accordance with the present disclosure.
  • 1 is a schematic diagram showing a situation in which collisions occur between different types of channel state information feedback
  • 2(a)-(c) are schematic diagrams illustrating collisions occurring between different types of channel state information feedbacks in accordance with the present disclosure.
  • FIG. 3 is a flow chart showing a method performed by a user equipment in accordance with one embodiment of the present disclosure
  • FIG. 4 is a flow chart showing a method performed by a base station in accordance with an embodiment of the present disclosure
  • FIG. 5(a) is a block diagram showing a user equipment according to an embodiment of the present disclosure
  • FIG. 5(b) is a block diagram showing a base station according to an embodiment of the present disclosure.
  • FIG. 3 is a flow diagram showing a method 300 performed by a user equipment UE, in accordance with one embodiment of the present disclosure.
  • the user equipment receives configuration information from the base station, where the configuration information is related to channel state information CSI feedback of the UE.
  • the CSI feedback may include two or more of periodic CSI feedback, aperiodic CSI feedback, and semi-persistent scheduling CSI feedback.
  • step S320 the user equipment performs corresponding CSI feedback according to the configuration information.
  • the configuration information may consist of periodic CSI feedback and semi-persistent scheduling CSI feedback.
  • the periodic CSI feedback overlaps with the scheduling time interval of the semi-persistent scheduling CSI feedback, as shown in FIG. 1 .
  • the UE may only send semi-persistent scheduling CSI feedback without transmitting periodic CSI feedback, as shown in FIG. 2(a).
  • the periodic CSI feedback is deactivated during the scheduling time interval of the semi-persistent scheduling CSI feedback.
  • the configuration information may consist of periodic CSI feedback and semi-persistent scheduling CSI feedback.
  • the periodic CSI feedback overlaps with the scheduling time interval of the semi-persistent scheduling CSI feedback, as shown in FIG. 1 .
  • the UE only transmits semi-persistent scheduling CSI feedback in the slot/subframe/time interval, instead of Send periodic CSI feedback as shown in Figure 2(b).
  • periodic CSI feedback can be sent as usual.
  • the configuration information may consist of periodic CSI feedback and semi-persistent scheduling CSI feedback.
  • the periodic CSI feedback overlaps with the scheduling time interval of the semi-persistent scheduling CSI feedback, as shown in FIG. 1 .
  • the periodic CSI feedback and the semi-persistent scheduling CSI feedback have different feedback types, then the UE is The slot/subframe/time interval simultaneously transmits periodic CSI feedback and semi-persistent scheduling CSI feedback, as shown in FIG. 2(c).
  • the periodic CSI feedback is the same as the feedback type of the semi-persistent scheduling CSI feedback, the UE transmits only semi-persistent scheduling CSI feedback in the slot/subframe/time interval.
  • the periodic CSI feedback is the parameter of CSI Type I
  • the semi-persistent scheduling CSI feedback feedback is the parameter of CSI Type II
  • the periodic CSI feedback is the parameter of CSI Type II
  • the semi-persistent scheduling CSI feedback feedback is the parameter of CSI Type I
  • the parameters of the periodic CSI feedback and the semi-persistent scheduling CSI feedback are both CSI Type I or CSI Type II, then the UE is in the slot/subframe/time interval. Only semi-persistent scheduling CSI feedback is sent.
  • the configuration information may consist of periodic CSI feedback and aperiodic CSI feedback.
  • periodic CSI feedback and the aperiodic CSI feedback are to be simultaneously transmitted in the same slot/subframe/time interval, if the periodic CSI feedback is different from the feedback type of the aperiodic CSI feedback, then the UE is in the slot.
  • the /subframe/time interval simultaneously transmits periodic CSI feedback and aperiodic CSI feedback.
  • the periodic CSI feedback is the same as the feedback type of the aperiodic CSI feedback
  • the UE transmits only the aperiodic CSI feedback in the slot/subframe/time interval.
  • the periodic CSI feedback is the parameter of CSI Type I
  • the non-periodic CSI feedback feedback is the parameter of CSI Type II
  • the slot/subframe is in the slot/subframe.
  • the UE needs to simultaneously feed back periodic CSI feedback and aperiodic CSI feedback on the time interval.
  • the periodic CSI feedback is a parameter of CSI Type II
  • the non-periodic CSI feedback feedback is a parameter of CSI Type I
  • the UE needs to simultaneously feed back periodic CSI feedback and aperiodic CSI feedback.
  • the UE is in the slot/subframe/time interval. Only aperiodic CSI feedback is sent.
  • the configuration information may consist of semi-persistent scheduling CSI feedback and aperiodic CSI feedback.
  • the semi-persistent scheduling CSI feedback and the aperiodic CSI feedback are to be simultaneously transmitted in the same slot/subframe/time interval, if the feedback type of the semi-persistent scheduling CSI feedback and the aperiodic CSI feedback are not the same, the UE is in the The slot/subframe/time interval needs to simultaneously transmit semi-persistent scheduling CSI feedback and aperiodic CSI feedback.
  • the UE transmits only semi-persistent scheduling CSI feedback or only aperiodic CSI feedback in the slot/subframe/time interval.
  • the semi-persistent scheduling CSI feeds back the parameters of CSI Type I
  • the non-periodic CSI feedback feedback is the parameters of CSI Type II
  • the UE simultaneously performs semi-persistent scheduling CSI feedback and aperiodic CSI feedback.
  • the semi-persistent scheduling CSI feedback is a parameter of CSI Type II
  • the non-periodic CSI feedback feedback is a parameter of CSI Type I.
  • the UE simultaneously performs semi-persistent scheduling CSI feedback and aperiodic CSI feedback.
  • the UE is in the slot/subframe/time.
  • the interval only sends semi-persistent scheduling CSI feedback, or only sends aperiodic CSI feedback.
  • FIG. 4 is a flow chart showing a method 400 performed by a base station (BS) in accordance with an embodiment of the present disclosure.
  • the base station In step S410, the base station generates configuration information related to channel state information CSI feedback of the user equipment UE.
  • the CSI feedback may include two or more of periodic CSI feedback, aperiodic CSI feedback, and semi-persistent scheduling CSI feedback.
  • step S420 the base station transmits configuration information to the UE.
  • FIG. 5(a) is a block diagram showing a user device 50a according to an embodiment of the present disclosure.
  • the user equipment 50a includes a processor 510a and a memory 520a.
  • Processor 510a can include, for example, a microprocessor, a microcontroller, an embedded processor, and the like.
  • the memory 520a may include, for example, a volatile memory (such as a random access memory RAM), a hard disk drive (HDD), a nonvolatile memory (such as a flash memory), or other memory.
  • Program instructions are stored on the memory 520a. The instructions, when executed by processor 510a, can perform the above-described methods performed by the user equipment as described in detail in this disclosure.
  • FIG. 5(b) is a block diagram showing a base station (BS) 50b according to an embodiment of the present disclosure.
  • the BS 50b includes a processor 510b and a memory 520b.
  • Processor 510b can include, for example, a microprocessor, a microcontroller, an embedded processor, and the like.
  • the memory 520b may include, for example, a volatile memory (such as a random access memory RAM), a hard disk drive (HDD), a nonvolatile memory (such as a flash memory), or other memory.
  • Program instructions are stored on the memory 520b. The instructions, when executed by processor 510b, can perform the above-described methods performed by the base station as described in detail in this disclosure.
  • the program running on the device according to the present invention may be a program that causes a computer to implement the functions of the embodiments of the present invention by controlling a central processing unit (CPU).
  • the program or information processed by the program may be temporarily stored in a volatile memory (such as a random access memory RAM), a hard disk drive (HDD), a non-volatile memory (such as a flash memory), or other memory system.
  • a program for realizing the functions of the embodiments of the present invention can be recorded on a computer readable recording medium.
  • the corresponding functions can be realized by causing a computer system to read programs recorded on the recording medium and execute the programs.
  • the so-called "computer system” herein may be a computer system embedded in the device, and may include an operating system or hardware (such as a peripheral device).
  • the "computer readable recording medium” may be a semiconductor recording medium, an optical recording medium, a magnetic recording medium, a recording medium of a short-term dynamic storage program, or any other recording medium readable by a computer.
  • circuitry e.g., monolithic or multi-chip integrated circuits.
  • Circuitry designed to perform the functions described in this specification can include general purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs), or other programmable logic devices, discrete Gate or transistor logic, discrete hardware components, or any combination of the above.
  • DSPs digital signal processors
  • ASICs application specific integrated circuits
  • FPGAs field programmable gate arrays
  • a general purpose processor may be a microprocessor or any existing processor, controller, microcontroller, or state machine.
  • the above circuit may be a digital circuit or an analog circuit.
  • One or more embodiments of the present invention may also be implemented using these new integrated circuit technologies in the context of new integrated circuit technologies that have replaced existing integrated circuits due to advances in semiconductor technology.
  • the present invention is not limited to the above embodiment. Although various examples of the embodiments have been described, the invention is not limited thereto.
  • Fixed or non-mobile electronic devices installed indoors or outdoors can be used as terminal devices or communication devices such as AV devices, kitchen devices, cleaning devices, air conditioners, office equipment, vending machines, and other home appliances.

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Abstract

本公开提供了一种由用户设备UE执行的方法，包括：从基站接收与UE的信道状态信息CSI反馈有关的配置信息，以及根据配置信息执行相应的CSI反馈。CSI反馈包括周期性CSI反馈、非周期性CSI反馈和半静态调度CSI反馈中的两种或更多种。本公开还提供了一种相应的由基站执行的方法，以及一种用户设备和基站。

Description

信道状态信息反馈方法、用户设备和基站 技术领域
本发明涉及无线通信技术领域。更具体地，本发明涉及不同类型信道状态信息反馈的方法以及相应的用户设备和基站。
背景技术
2016年3月，在第三代合作伙伴计划(3rd Generation Partnership Project：3GPP)RAN#71次全会上，NTT DOCOMO提出了一个关于5G技术标准的新的研究项目(参见非专利文献：RP-160671：New SID Proposal：Study on New Radio Access Technology)，并获批准。该研究项目的目的是开发一个新的无线(New Radio：NR)接入技术以满足5G的所有应用场景、需求和部署环境。NR主要有三个应用场景：增强的移动宽带通信(Enhanced Mobile Broadband：eMBB)、大规模机器类通信(massive Machine Type Communication：mMTC)和超可靠低延迟通信(Ultra Reliable and Low Latency Communications：URLLC)。按照该研究项目的规划，NR的标准化分二个阶段进行：第一阶段的标准化工作将于2018年中期完成；第二阶段的标准化工作将于2019年底完成。第一阶段的标准规范要前向兼容于第二阶段的标准规范，而第二阶段的标准规范要建立在第一阶段的标准规范之上，并满足5G NR技术标准的所有要求。
目前，在LTE以及LTE-A中，UE关于信道状态信息(channel state information)的反馈类型可以分为两大类：周期性反馈与非周期性反馈。其中，周期性反馈指的是UE根据基站高层配置的信息来周期性的反馈信道状态信息，非周期性反馈则是基站通过某种触发方式来让UE不定时的反馈信道状态信息。
在LTE以及LTE-A中，当周期性反馈与非周期性反馈出现在同一个子帧时，UE在该子帧内只会传输非周期性反馈。
发明内容
在NR中，除了周期性CSI反馈与非周期性CSI反馈，还会支持半静态调度(SPS，Semi-Persistent Schedluling)CSI反馈。当这三种类型反馈的任意两种或者三种在同一个时隙(slot)/子帧(subframe)/时间区间同时出现时，如何处理它们之间的优先级关系是NR务必要解决的一个问题。
同时，关于CSI反馈的内容在NR中也支持不同的类型。CSI type-1可以包含有资源选择指示、预编码矩阵指示、信道质量反馈等参数，其反馈精度相较于CSI type-2可能略低。CSI type-2可以包含有精度更高的反馈参数，例如可能包含有模拟信道状态信息反馈、信道的协方差矩阵、信道的特征向量等参数。
在三种CSI反馈类型在时间上发生冲突时，它们具体传输的CSI反馈内容也应当纳入考虑。
根据本公开的一个方面，提供了一种由用户设备UE执行的方法，包括：从基站接收配置信息，所述配置信息与所述UE的信道状态信息CSI反馈有关，所述CSI反馈包括周期性CSI反馈、非周期性CSI反馈和半静态调度CSI反馈中的两种或更多种；以及根据所述配置信息，执行相应的CSI反馈。
在一个实施例中，所述配置信息与周期性CSI反馈和半静态调度CSI反馈有关。如果周期性CSI反馈和半静态调度CSI反馈在某个时间区间内的某个时隙中发生重叠，则在整个该时间区间内仅执行半静态调度CSI反馈。备选地，如果周期性CSI反馈与半静态调度CSI反馈在某个时间区间内的某个时隙中发生重叠，则在该时隙中只执行半静态调度CSI反馈。备选地，如果周期性CSI反馈和半静态调度CSI反馈在某个时间区间内的某个时隙中发生重叠，如果周期性CSI反馈和半静态调度CSI反馈的反馈类型不同，则在该时隙中执行周期性CSI反馈和半静态调度CSI反馈；而如果周期性CSI反馈和半静态调度CSI反馈的反馈类型相同，则在该时隙中仅执行半静态调度CSI反馈。
在一个实施例中，所述配置信息与周期性CSI反馈和非周期性CSI反馈有关。如果周期性CSI反馈与非周期性CSI反馈在某个时间区间内的某个时隙中发生重叠，如果周期性CSI反馈与非周期性CSI反馈的反馈类型不相同，那么在该时隙中执行周期性CSI反馈和非周期性CSI反馈；而如果周期性CSI反馈与非周期性CSI反馈的反馈类型相同，则在该时隙中仅执行非周期性CSI反馈。
在一个实施例中，所述配置信息与非周期性CSI反馈和半静态调度CSI反馈有关。如果非周期性CSI反馈与半静态调度CSI反馈在某个时间区间内的某个时隙中发生重叠，如果非周期性CSI反馈与半静态调度CSI反馈的反馈类型不相同，那么在该时隙中执行非周期性CSI反馈和半静态调度CSI反馈；而如果非周期性CSI反馈与半静态调度CSI反馈的反馈类型相同，则在该时隙中仅执行非周期性CSI反馈或者半静态调度CSI反馈。
根据本公开的另一个方面，提供了一种用户设备UE，包括处理器以及存储器。所述存储器上存储有指令。所述指令在由所述处理器运行时执行根据本公开所描述的方法。
根据本公开的另一个方面，提供了一种由基站执行的方法，包括：生成配置信息，所述配置信息与用户设备UE的信道状态信息CSI反馈有关，所述CSI反馈包括周期性CSI反馈、非周期性CSI反馈和半静态调度CSI反馈中的两种或更多种；以及向所述UE发送所述配置信息。
根据本公开的另一个方面，提供了一种基站，包括处理器以及存储器。所述存储器上存储有指令。所述指令在由所述处理器运行时执行根据本公开所描述的方法。
附图说明
通过下文结合附图的详细描述，本公开的上述和其它特征将会变得更加明显，其中：
图1是示出了不同类型信道状态信息反馈之间发生碰撞的情形的示意图；
图2(a)-(c)是示出了根据本公开的解决不同类型信道状态信息反馈之间发生的碰撞的示意图。
图3是示出了根据本公开一个实施例的由用户设备执行的方法的流程图；
图4是示出了根据本公开一个实施例的由基站执行的方法的流程图；
图5(a)是示出了根据本公开一个实施例的用户设备的框图；以及
图5(b)是示出了根据本公开一个实施例的基站的框图。
具体实施方式
下面结合附图和具体实施方式对本公开进行详细阐述。应当注意，本公开不应局限于下文所述的具体实施方式。另外，为了简便起见，省略了对与本公开没有直接关联的公知技术的详细描述，以防止对本公开的理解造成混淆。
下文以LTE移动通信***及其后续的演进版本作为示例应用环境，具体描述了根据本发明的多个实施方式。然而，需要指出的是，本发明不限于以下实施方式，而是可适用于更多其它的无线通信***，例如今后的5G或之后的通信***。
图3是示出了根据本公开一个实施例的由用户设备UE执行的方法300的流程图。
在步骤S310，用户设备从基站接收配置信息，该配置信息与UE的信道状态信息CSI反馈有关。例如，该CSI反馈可以包括周期性CSI反馈、非周期性CSI反馈和半静态调度CSI反馈中的两种或更多种。
在步骤S320，用户设备根据配置信息来执行相应的CSI反馈。
下面，通过若干具体示例来详细描述方法300中的各个步骤的执行。
在一个示例中，该配置信息可以由周期性CSI反馈与半静态调度CSI反馈构成。此时，假设周期性CSI反馈与半静态调度CSI反馈的调度时间区间有重叠，如图1所示。那么，在重叠时间区间内，UE可以只发送半静态调度CSI反馈，而不发送周期性CSI反馈，如图2(a)所示。换句话说，在半静态调度CSI反馈的调度时间区间内，周期性CSI反馈被去激活(deactivated)。
在另一个示例中，该配置信息可以由周期性CSI反馈与半静态调度CSI反馈构成。此时，仍然假设周期性CSI反馈与半静态调度CSI反馈的调度时间区间有重叠，如图1所示。那么，当周期性CSI反馈与半静态调度CSI反馈要在同一个时隙/子帧/时间区间同时传输时，UE在该时隙/子帧/时间区间只发送半静态调度CSI反馈，而不发送周期性CSI反馈，如图2(b)所示。在其他时隙/子帧/时间区间上，周期性CSI反馈可以照常发送。
在另一个示例中，该配置信息可以由周期性CSI反馈与半静态调度CSI反馈构成。此时，仍然假设周期性CSI反馈与半静态调度CSI反馈的调度时间区间有重叠，如图1所示。此时，当周期性CSI反馈与半静态调度CSI 反馈要在同一个时隙/子帧/时间区间同时传输时，如果周期性CSI反馈与半静态调度CSI反馈的反馈类型不相同，那么UE在该时隙/子帧/时间区间同时发送周期性CSI反馈与半静态调度CSI反馈，图2(c)所示。相反，如果周期性CSI反馈与半静态调度CSI反馈的反馈类型相同，那么UE在该时隙/子帧/时间区间只发送半静态调度CSI反馈。
例如，假设在某一时隙/子帧/时间区间上，周期性CSI反馈的是CSI Type I的参数，而半静态调度CSI反馈反馈的是CSI Type II的参数，那么在该时隙/子帧/时间区间上，UE需要同时反馈周期性CSI反馈与半静态调度CSI反馈。相反，假设在某一时隙/子帧/时间区间上，周期性CSI反馈的是CSI Type II的参数，而半静态调度CSI反馈反馈的是CSI Type I的参数，那么在该时隙/子帧/时间区间上，UE需要同时反馈周期性CSI反馈与半静态调度CSI反馈。进一步地，假设在某一时隙/子帧/时间区间上，周期性CSI反馈与半静态调度CSI反馈的参数都是CSI Type I或者CSI Type II，那么UE在该时隙/子帧/时间区间只发送半静态调度CSI反馈。
在另一个示例中，该配置信息可以由周期性CSI反馈与非周期性CSI反馈构成。当周期性CSI反馈与非周期性CSI反馈要在同一个时隙/子帧/时间区间同时传输时，如果周期性CSI反馈与非周期性CSI反馈的反馈类型不相同，那么UE在该时隙/子帧/时间区间同时发送周期性CSI反馈与非周期性CSI反馈。相反，如果周期性CSI反馈与非周期性CSI反馈的反馈类型相同，那么UE在该时隙/子帧/时间区间只发送非周期性CSI反馈。
例如，假设在某一时隙/子帧/时间区间上，周期性CSI反馈的是CSI Type I的参数，而非周期性CSI反馈反馈的是CSI Type II的参数，那么在该时隙/子帧/时间区间上UE需要同时反馈周期性CSI反馈与非周期性CSI反馈。进一步地，假设在某一时隙/子帧/时间区间上，周期性CSI反馈的是CSI Type II的参数，而非周期性CSI反馈反馈的是CSI Type I的参数，那么在该时隙/子帧/时间区间上，UE需要同时反馈周期性CSI反馈与非周期性CSI反馈。相反，假设在某一时隙/子帧/时间区间上，周期性CSI反馈与非周期性CSI反馈的参数如果都是CSI Type I或者CSI Type II，那么UE在该时隙/子帧/时间区间只发送非周期性CSI反馈。
在另一个示例中，该配置信息可以由半静态调度CSI反馈与非周期性CSI反馈构成。当半静态调度CSI反馈与非周期性CSI反馈要在同一个时 隙/子帧/时间区间同时传输时，如果半静态调度CSI反馈与非周期性CSI反馈的反馈类型不相同，那么UE在该时隙/子帧/时间区间需要同时发送半静态调度CSI反馈与非周期性CSI反馈。相反，如果半静态调度CSI反馈与非周期性CSI反馈的反馈类型相同，那么UE在该时隙/子帧/时间区间只发送半静态调度CSI反馈，或者只发送非周期性CSI反馈。
例如，假设在某一时隙/子帧/时间区间上，半静态调度CSI反馈的是CSI Type I的参数，而非周期性CSI反馈反馈的是CSI Type II的参数。那么，在该时隙/子帧/时间区间上，UE同时执行半静态调度CSI反馈与非周期性CSI反馈。进一步地，假设在某一时隙/子帧/时间区间上，半静态调度CSI反馈的是CSI Type II的参数，而非周期性CSI反馈反馈的是CSI Type I的参数。那么，在该时隙/子帧/时间区间上，UE同时执行半静态调度CSI反馈与非周期性CSI反馈。相反，假设在某一时隙/子帧/时间区间上，半静态调度CSI反馈与非周期性CSI反馈的参数如果都是CSI Type I或者CSI Type II，那么UE在该时隙/子帧/时间区间只发送半静态调度CSI反馈，或者只发送非周期性CSI反馈。
图4是示出了根据本公开一个实施例的由基站(BS)执行的方法400的流程图。
在步骤S410，基站生成配置信息，该配置信息与用户设备UE的信道状态信息CSI反馈有关。例如，CSI反馈可以包括周期性CSI反馈、非周期性CSI反馈和半静态调度CSI反馈中的两种或更多种。
在步骤S420，基站向UE发送配置信息。
图5(a)是示出了根据本公开一个实施例的用户设备50a的框图。如图5(a)所示，该用户设备50a包括处理器510a和存储器520a。处理器510a例如可以包括微处理器、微控制器、嵌入式处理器等。存储器520a例如可以包括易失性存储器(如随机存取存储器RAM)、硬盘驱动器(HDD)、非易失性存储器(如闪速存储器)、或其他存储器等。存储器520a上存储有程序指令。该指令在由处理器510a运行时，可以执行本公开详细描述的由用户设备执行的上述方法。
图5(b)是示出了根据本公开一个实施例的基站(BS)50b的框图。如图5(b)所示，该BS 50b包括处理器510b和存储器520b。处理器510b例如可以包括微处理器、微控制器、嵌入式处理器等。存储器520b例如可以包括 易失性存储器(如随机存取存储器RAM)、硬盘驱动器(HDD)、非易失性存储器(如闪速存储器)、或其他存储器等。存储器520b上存储有程序指令。该指令在由处理器510b运行时，可以执行本公开详细描述的由基站执行的上述方法。
运行在根据本发明的设备上的程序可以是通过控制中央处理单元(CPU)来使计算机实现本发明的实施例功能的程序。该程序或由该程序处理的信息可以临时存储在易失性存储器(如随机存取存储器RAM)、硬盘驱动器(HDD)、非易失性存储器(如闪速存储器)、或其他存储器***中。
用于实现本发明各实施例功能的程序可以记录在计算机可读记录介质上。可以通过使计算机***读取记录在所述记录介质上的程序并执行这些程序来实现相应的功能。此处的所谓“计算机***”可以是嵌入在该设备中的计算机***，可以包括操作***或硬件(如***设备)。“计算机可读记录介质”可以是半导体记录介质、光学记录介质、磁性记录介质、短时动态存储程序的记录介质、或计算机可读的任何其他记录介质。
用在上述实施例中的设备的各种特征或功能模块可以通过电路(例如，单片或多片集成电路)来实现或执行。设计用于执行本说明书所描述的功能的电路可以包括通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)、或其他可编程逻辑器件、分立的门或晶体管逻辑、分立的硬件组件、或上述器件的任意组合。通用处理器可以是微处理器，也可以是任何现有的处理器、控制器、微控制器、或状态机。上述电路可以是数字电路，也可以是模拟电路。因半导体技术的进步而出现了替代现有集成电路的新的集成电路技术的情况下，本发明的一个或多个实施例也可以使用这些新的集成电路技术来实现。
此外，本发明并不局限于上述实施例。尽管已经描述了所述实施例的各种示例，但本发明并不局限于此。安装在室内或室外的固定或非移动电子设备可以用作终端设备或通信设备，如AV设备、厨房设备、清洁设备、空调、办公设备、自动贩售机、以及其他家用电器等。
如上，已经参考附图对本发明的实施例进行了详细描述。但是，具体的结构并不局限于上述实施例，本发明也包括不偏离本发明主旨的任何设 计改动。另外，可以在权利要求的范围内对本发明进行多种改动，通过适当地组合不同实施例所公开的技术手段所得到的实施例也包含在本发明的技术范围内。此外，上述实施例中所描述的具有相同效果的组件可以相互替代。

Claims (10)

  1. 一种由用户设备UE执行的方法，包括：
    从基站接收配置信息，所述配置信息与所述UE的信道状态信息CSI反馈有关，所述CSI反馈包括周期性CSI反馈、非周期性CSI反馈和半静态调度CSI反馈中的两种或更多种；以及
    根据所述配置信息，执行相应的CSI反馈。
  2. 根据权利要求1所述的方法，其中，所述配置信息与周期性CSI反馈和半静态调度CSI反馈有关；以及根据所述配置信息执行相应的CSI反馈包括：
    如果周期性CSI反馈和半静态调度CSI反馈在某个时间区间内的某个时隙中发生重叠，则在整个该时间区间内仅执行半静态调度CSI反馈；或者
    如果周期性CSI反馈与半静态调度CSI反馈在某个时间区间内的某个时隙中发生重叠，则在该时隙中只执行半静态调度CSI反馈；或者
    如果周期性CSI反馈和半静态调度CSI反馈在某个时间区间内的某个时隙中发生重叠，如果周期性CSI反馈和半静态调度CSI反馈的反馈类型不同，则在该时隙中执行周期性CSI反馈和半静态调度CSI反馈；而如果周期性CSI反馈和半静态调度CSI反馈的反馈类型相同，则在该时隙中仅执行半静态调度CSI反馈。
  3. 根据权利要求1所述的方法，其中，所述配置信息与周期性CSI反馈和非周期性CSI反馈有关；以及根据所述配置信息执行相应的CSI反馈包括：
    如果周期性CSI反馈与非周期性CSI反馈在某个时间区间内的某个时隙中发生重叠，如果周期性CSI反馈与非周期性CSI反馈的反馈类型不相同，那么在该时隙中执行周期性CSI反馈和非周期性CSI反馈；而如果周期性CSI反馈与非周期性CSI反馈的反馈类型相同，则在该时隙中仅执行非周期性CSI反馈。
  4. 根据权利要求1所述的方法，其中，所述配置信息与非周期性CSI反馈和半静态调度CSI反馈有关；以及根据所述配置信息执行相应的CSI反馈包括：
    如果非周期性CSI反馈与半静态调度CSI反馈在某个时间区间内的某个时隙中发生重叠，如果非周期性CSI反馈与半静态调度CSI反馈的反馈类型不相同，那么在该时隙中执行非周期性CSI反馈和半静态调度CSI反馈；而如果非周期性CSI反馈与半静态调度CSI反馈的反馈类型相同，则在该时隙中仅执行非周期性CSI反馈或者半静态调度CSI反馈。
  5. 一种用户设备UE，包括：
    处理器；以及
    存储器，所述存储器上存储有指令；
    其中，所述指令在由所述处理器运行时执行根据权利要求1-4中任意一项所述的方法。
  6. 一种由基站执行的方法，包括：
    生成配置信息，所述配置信息与用户设备UE的信道状态信息CSI反馈有关，所述CSI反馈包括周期性CSI反馈、非周期性CSI反馈和半静态调度CSI反馈中的两种或更多种；以及
    向所述UE发送所述配置信息。
  7. 根据权利要求6所述的方法，其中，所述配置信息与周期性CSI反馈和半静态调度CSI反馈有关；以及所述配置信息指示所述UE执行以下操作：
    如果周期性CSI反馈和半静态调度CSI反馈在某个时间区间内的某个时隙中发生重叠，则在整个该时间区间内仅执行半静态调度CSI反馈；或者
    如果周期性CSI反馈与半静态调度CSI反馈在某个时间区间内的某个时隙中发生重叠，则在该时隙中只执行半静态调度CSI反馈；或者
    如果周期性CSI反馈和半静态调度CSI反馈在某个时间区间内的某个时隙中发生重叠，如果周期性CSI反馈和半静态调度CSI反馈的反馈类型不同，则在该时隙中执行周期性CSI反馈和半静态调度CSI反馈；而如果周期性CSI反馈和半静态调度CSI反馈的反馈类型相同，则在该时隙中仅执行半静态调度CSI反馈。
  8. 根据权利要求6所述的方法，其中，所述配置信息与周期性CSI反馈和非周期性CSI反馈有关；以及所述配置信息指示所述UE执行以下操作：
    如果周期性CSI反馈与非周期性CSI反馈在某个时间区间内的某个时隙中发生重叠，如果周期性CSI反馈与非周期性CSI反馈的反馈类型不相同，那么在该时隙中执行周期性CSI反馈和非周期性CSI反馈；而如果周期性CSI反馈与非周期性CSI反馈的反馈类型相同，则在该时隙中仅执行非周期性CSI反馈。
  9. 根据权利要求6所述的方法，其中，所述配置信息与非周期性CSI反馈和半静态调度CSI反馈有关；以及所述配置信息指示所述UE执行以下操作：
    如果非周期性CSI反馈与半静态调度CSI反馈在某个时间区间内的某个时隙中发生重叠，如果非周期性CSI反馈与半静态调度CSI反馈的反馈类型不相同，那么在该时隙中执行非周期性CSI反馈和半静态调度CSI反馈；而如果非周期性CSI反馈与半静态调度CSI反馈的反馈类型相同，则在该时隙中仅执行非周期性CSI反馈或者半静态调度CSI反馈。
  10. 一种基站，包括：
    处理器；以及
    存储器，所述存储器上存储有指令；
    其中，所述指令在由所述处理器运行时执行根据权利要求6-9中任意一项所述的方法。
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