WO2010003351A1 - 一种信息调度方法、装置 - Google Patents

一种信息调度方法、装置 Download PDF

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Publication number
WO2010003351A1
WO2010003351A1 PCT/CN2009/072625 CN2009072625W WO2010003351A1 WO 2010003351 A1 WO2010003351 A1 WO 2010003351A1 CN 2009072625 W CN2009072625 W CN 2009072625W WO 2010003351 A1 WO2010003351 A1 WO 2010003351A1
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Prior art keywords
pilot information
power
information
modulated
uplink
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PCT/CN2009/072625
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English (en)
French (fr)
Inventor
阿布阿黑加·日特
哈斯·哈尔德
潘炜
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2010003351A1 publication Critical patent/WO2010003351A1/zh
Priority to US12/986,710 priority Critical patent/US8718661B2/en

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    • 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
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0473—Wireless resource allocation based on the type of the allocated resource the resource being transmission power

Definitions

  • the present invention relates to the field of wireless communication technologies, and in particular, to an information scheduling method and apparatus. Background technique
  • TDD Time Division Duplex
  • the uplink and downlink communication between a base station and a mobile station uses different time slots of the same frequency channel (ie, carrier) to separate reception and transmission. information.
  • the uplink SRS (Sounding Reference Symbol) is used by the base station to perform uplink resource scheduling for the terminal.
  • the base station configures an uplink SRS for the terminal, and the terminal transmits the SRS to the base station, and the base station acquires uplink information according to the received uplink SRS, as reference information for performing uplink resource scheduling on the terminal.
  • the base station transmits the uplink information to the terminal, and the terminal uses the uplink information to complete uplink data transmission.
  • the uplink information includes a CQI (Channel Quality Indicator), a PMI (Precoding Matrix Indicator), a MCS (Modulation and Coding Scheme), and an RI (Channel Rank Indicator, Rank Indicator). ) and other information.
  • the terminal measures the downlink channel information, and uses the uplink control channel or the uplink data sharing channel to feed back related information such as CQI, PMI, and RI to the base station.
  • the base station determines the precoding matrix used by the terminal according to the downlink PMI and RI.
  • the base station queries the corresponding table of the CQI and the MCS according to the downlink CQI to obtain the MCS level of the terminal, and the base station notifies the terminal of the transmission format of the terminal in the downlink control channel.
  • the response of the uplink channel is the same as the response of the downlink channel, but the interference on the uplink receiving side is different from the interference on the downlink receiving side.
  • the interference information when the base station receives the information, the interference information includes the uplink transmission information of the neighboring cell terminal and the downlink transmission information of the remote base station.
  • the interference information when the terminal receives the information, the interference information includes the downlink transmission information of the base station of the neighboring cell.
  • the terminal sends the SRS information to the base station, and the SRS information received by the base station is as follows:
  • Y is the receiving information of the base station
  • h is the uplink channel response
  • s is the SRS symbol
  • n is the noise of the receiving end of the base station
  • the noise of the receiving end includes the uplink receiving interference information and the background thermal noise for the uplink channel
  • the base station receives the terminal transmitting SRS, calculate the information interference ratio of the uplink channel, and the formula is as follows: Where is the channel gain, which is the transmit power of the SRS, and ⁇ is the uplink interference power measured by the base station, the uplink interference power includes uplink received interference information and background thermal noise, and the base station uses the information interference ratio of the uplink channel of the terminal as a pair.
  • the uplink information of the terminal is used for resource scheduling reference information.
  • the pilot information of the terminal receiving end is:
  • Y is the received information of the terminal
  • h is the uplink channel response
  • s is the SRS symbol
  • n is the noise of the receiving end of the terminal
  • the noise of the receiving end includes the uplink receiving interference information and the background thermal noise.
  • the terminal calculates the information interference ratio of the downlink channel according to the received downlink pilot information, and the formula is as follows:
  • l is the channel gain
  • il is the transmit power of the SRS
  • the downlink interference power includes downlink received interference information and background thermal noise.
  • the terminal calculates the downlink channel quality according to the information interference ratio, and feeds back the downlink channel quality to the base station, and the base station uses the downlink channel quality as reference information for resource scheduling of the downlink of the terminal.
  • this method causes a huge amount of information for the uplink channel feedback because, currently, In the TDD system, the uplink/downlink channels have different channel responses because they are in different frequency bands.
  • the terminal In downlink scheduling, the terminal needs to feed back the information received by the downlink channel to the base station through the uplink channel, thereby causing the uplink channel feedback information. Huge problem.
  • the base station receives the SRS information, and calculates an information interference ratio of the uplink channel according to the power of the SRS and the uplink interference power, that is, the information interference ratio of the uplink channel is equal to the product of 2 and I, and is further divided by 1 1 2 , and the formula is as follows:
  • SINRu is the information-to-interference ratio of the uplink channel, and is the channel gain of the pilot information, which is the transmission power of the pilot information.
  • the product of 2 and i is the power of the pilot information, and 1 3 ⁇ 4 11 2 is the uplink interference power measured by the base station.
  • the uplink interference power includes uplink reception interference information and background thermal noise.
  • the base station uses the information interference ratio of the uplink channel of the terminal as reference information for resource scheduling of the uplink of the terminal, and the base station also uses the information interference ratio of the uplink channel of the terminal as resource scheduling for the downlink of the terminal. Reference Information.
  • the base station uses the information interference ratio of the uplink channel of the terminal as the reference information for resource scheduling of the uplink of the terminal, and the base station also uses the uplink channel information interference ratio of the terminal as the downlink to the terminal.
  • the reference information for resource scheduling reduces the process of feeding back downlink channel information to the base station.
  • the method utilizes the reciprocity of the TDD channel, the information scheduling process is reduced, and the problem of huge amount of feedback information of the uplink channel is solved.
  • the interference information of the downlink channel is not considered, but the downlink channel is not considered.
  • the interference information of the uplink channel is referred to as reference information for uplink resource scheduling of the terminal.
  • the uplink interference information is different from the downlink interference information. Therefore, the quality of the downlink channel information is inaccurate, which reduces the downlink channel transmission. The throughput of the loss.
  • the technical problem to be solved by the embodiments of the present invention is to provide an information scheduling method, which can improve the quality of channel information scheduling.
  • An information scheduling method comprising the following steps:
  • An information scheduling device the device comprising a receiving unit, a calculating unit and a scheduling unit, wherein:
  • the receiving unit is configured to receive the modulated first pilot information
  • the calculating unit is configured to obtain, according to the modulated first pilot information, the power carried by the modulated first pilot information;
  • the scheduling unit is configured to perform uplink or downlink scheduling on the terminal according to the power carried by the first pilot information.
  • the base station obtains the power carried by the modulated first pilot information according to the received modulated first pilot information, and performs uplink or downlink scheduling on the terminal according to the power carried by the first pilot information, so that the downlink scheduling is performed.
  • the modulated first pilot information since the modulated first pilot information is considered, that is, the downlink interference information is considered, the quality of the channel information scheduling can be improved in the uplink or downlink scheduling, and the transmission throughput of the uplink or downlink channel is improved.
  • the power carried by the reference first pilot information is also referenced to the uplink interference power, so the uplink channel information scheduling is more accurate.
  • the base station calculates the power of the modulated first pilot information according to the received modulated first pilot information, and the base station performs downlink information scheduling according to the power carried by the modulated first pilot information, thereby reducing the downlink of the terminal.
  • the information received by the channel is fed back to the base station through the uplink channel, thereby solving the problem that the amount of uplink channel feedback information is huge.
  • FIG. 1 is a schematic flow chart of a first embodiment of an information scheduling method according to the present invention.
  • FIG. 2 is a schematic flow chart of a second embodiment of an information scheduling method according to the present invention.
  • FIG. 3 is a schematic structural diagram of an apparatus for an information scheduling method according to the present invention.
  • FIG. 1 it is a schematic flowchart of a first implementation manner of an information scheduling method according to the present invention, and the method may include the following steps:
  • Step 101 The base station receives the modulated first pilot information.
  • the modulated first pilot information may include:
  • the terminal measures the downlink interference level of the receiving end, and the terminal modulates the downlink interference level of the receiving end obtained by the measurement on the uplink pilot information, that is, the modulated first pilot information is therein, s
  • is the terminal to measure the downlink interference level at the receiving end of the terminal, that is, the downlink interference information.
  • the received information at the base station is equal to h multiplied by , and then added to n.
  • the formula is as follows:
  • Hs where r is the receiving information of the base station, h is the uplink channel response, s is the measured pilot information, n is the noise of the receiving end of the base station, and
  • Step 102 The base station obtains, according to the modulated first pilot information, the power carried by the modulated first pilot information;
  • Xr obtains the power carried by the pilot information after modulation at the receiving end, and the formula is as follows: Wherein, M d is the power carried by the pilot information of the receiving end, and ⁇ " is the channel gain of the pilot information, which is the power of the first pilot information after modulation;
  • Step 103 The base station performs uplink or downlink information scheduling on the terminal according to the power carried by the first pilot information.
  • the base station obtains the power carried by the modulated first pilot information according to the modulated pilot information, and the base station uses the power carried by the modulated first pilot information as reference information for downlink scheduling; the base station according to the modulated The pilot information obtains the power carried by the modulated first pilot information, and the base station uses the power carried by the modulated first pilot information as reference information for uplink scheduling.
  • the base station obtains the power of the modulated first pilot information according to the received first pilot information, and performs uplink or downlink scheduling on the terminal according to the power carried by the first pilot information, so that the downlink scheduling is performed.
  • the downlink interference information is considered by referring to the modulated first pilot information, so that the quality of the channel information scheduling can be improved in the uplink or downlink scheduling, and the transmission throughput of the uplink or downlink channel is improved.
  • the base station performs uplink information scheduling on the terminal according to the power carried by the first pilot information. Includes the following steps:
  • Step 201 The base station receives the modulated first pilot information.
  • Step 202 The base station obtains uplink according to the modulated first pilot information and uplink interference power.
  • Information scheduling interference information may include:
  • the base station obtains uplink interference power l 1 ⁇ 2 l 2 according to the uplink interference level
  • the uplink interference power includes uplink interference information power and background thermal noise power of the receiving end.
  • the base station obtains uplink scheduling reference information according to the uplink interference power and the power carried by the modulated first pilot information, where the reference information of the uplink scheduling is equal to a product of 11 and ft, that is, M d , and is further divided by ⁇ ⁇ .
  • the formula can be:
  • ⁇ is the reference information of the uplink scheduling
  • ⁇ " ⁇ is the channel gain of the pilot information
  • I ll 2 is the uplink interference power calculated according to the interference level of the uplink receiving end.
  • Step 203 The base station performs uplink information scheduling according to the uplink scheduling reference information.
  • the power of the first pilot information is referenced in the uplink scheduling, and the uplink interference power is also referred to, so that the uplink channel information scheduling is more accurate.
  • the base station calculates the power carried by the modulated first pilot information according to the received modulated first pilot information, and performs downlink information scheduling according to the power carried by the modulated first pilot information, thereby reducing the downlink channel of the terminal.
  • the received information is fed back to the base station through the uplink channel, thereby solving the problem that the amount of uplink channel feedback information is huge.
  • FIG. 3 is a structural diagram of an information scheduling apparatus according to an embodiment of the present invention.
  • the apparatus may include: a receiving unit 301, a calculating unit 302, and a scheduling unit 303.
  • the receiving unit 301 is configured to receive the modulated first pilot information.
  • the calculating unit 302 is configured to obtain, according to the modulated first pilot information, the power carried by the modulated first pilot information;
  • the calculating unit 302 can include:
  • the first calculation module 3021 is configured to obtain the modulated first pilot information power according to the modulated first pilot information, and may include:
  • the base station obtains the modulated first pilot information power according to the modulated first pilot information ⁇
  • the second calculating module 3022 is configured to obtain, according to the first pilot information power and the channel gain of the pilot information, the power carried by the first pilot information, and the method may include: adding, by the base station, the channel according to the pilot information.
  • the power carried by the frequency information is the product of l and the formula, which can be:
  • the obtaining module 3023 is configured to obtain uplink interference power.
  • the third calculating module 3024 is configured to perform uplink scheduling on the terminal according to the uplink interference power and the power M D carried by the modulated first pilot information, and may include: The M u is the uplink scheduling reference information, the M D is the power carried by the first pilot information, and the second is the uplink interference power.
  • the scheduling unit 303 is configured to perform on the terminal according to the power carried by the first pilot information. Row or downlink scheduling.
  • the base station obtains the power carried by the modulated first pilot information according to the received modulated first pilot information, and performs uplink or downlink scheduling on the terminal according to the power carried by the first pilot information.
  • the reference to the modulated first pilot information that is, the downlink interference information is considered, so that the quality of the channel information scheduling can be improved in the uplink or downlink scheduling, and the uplink, or downlink is improved.
  • the transmission throughput of the channel in the uplink scheduling, the power carried by the first pilot information is referenced, and the uplink interference power is also referred to, so that the uplink channel information scheduling is more accurate.
  • the base station calculates the power carried by the modulated first pilot information according to the received modulated first pilot information, and the base station performs downlink information scheduling according to the power carried by the modulated first pilot information, thereby reducing the downlink of the terminal.
  • the information received by the channel is fed back to the base station through the uplink channel, thereby solving the problem that the amount of uplink channel feedback information is huge.
  • the present invention can be implemented by means of software and a necessary general hardware platform. Of course, hardware can also be used, but in many cases, the former is better. Implementation. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium, including a plurality of instructions for causing a A computer device (which may be a personal computer, server, or network device, etc.) performs the methods described in various embodiments of the present invention.

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Description

一种信息调度方法、 装置
技术领域
本发明涉及无线通信技术领域， 具体是涉及一种信息调度方法、 装置。 背景技术
TDD (Time Division Duplex, 时分双工模式）是一种通信系统的双工方 式， 基站到移动台之间的上行和下行通信使用同一频率信道（即载波） 的不 同时隙， 来分离接收和传送信息。
在 TDD系统内，上行 SRS (测量导频信息， Sounding Reference Symbol) 用于基站对终端进行上行资源调度。 基站给终端配置上行 SRS, 终端向基站 发射所述 SRS, 基站根据接收到的上行 SRS, 获取上行链路信息， 作为对终 端进行上行资源调度的参考信息。 该基站将所述上行链路信息发送给终端， 该终端利用该上行链路信息完成上行数据传送。所述上行链路信息包括 CQI (信道质量指示， Channel Quality Indicator )、 PMI(预处理矩阵指示， Precoding Matrix Indicator). MCS (编码调制方式， Modulation and Coding Scheme )、 RI (信道秩指示， Rank indicator) 等信息。 该终端测量下行信道信息， 利用 上行控制信道或者上行数据共享信道， 将相关的 CQI、 PMI、 RI 等信息反馈 给基站。 基站根据下行的 PMI、 RI, 决定该终端所使用的预编码矩阵。 基站 根据下行 CQI, 查询 CQI和 MCS的对应表格， 获得该终端的 MCS等级， 基站在下行控制信道中， 将该终端的传输格式通知给终端。
TDD系统内， 因为上行 /下行信道信息具有互易性， 所以上行信道的响 应与下行信道的响应相同，但是上行接收侧的干扰与下行接收侧的干扰是不 同的。
现有技术中， 基站接收信息时， 干扰信息包括邻小区终端的上行发射信 息、 远端基站的下行发射信息； 终端接收信息时， 干扰信息包括邻小区的基 站的下行发射信息。
传统的 TDD系统信息调度方法有以下两种： 第一种是： 终端发送 SRS信息给基站， 基站端接收到的 SRS信息如下:
Y=h*s+n
其中， Y是基站端的接收信息， h是上行信道响应， s是 SRS符号， n 是基站接收端的噪声， 该接收端的噪声包括上行接收干扰信息和背景热噪 对于上行信道， 基站接收到终端发送的 SRS, 计算出上行信道的信息干 扰比， 公式如下：
Figure imgf000004_0001
其中， 是信道增益， 是 SRS的发射功率， ΙΙ^ιι是基站测量的上行 干扰功率， 该上行干扰功率包括上行接收干扰信息和背景热噪声， 基站将该 终端的上行信道的信息干扰比作为对终端的上行链路进行资源调度的参考 信息。
对于下行信道， 终端接收端的导频信息是：
Y=h*s+n
其中， Y是终端的接收信息， h是上行信道响应， s是 SRS符号， n是 终端接收端的噪声， 该接收端噪声包括上行接收干扰信息和背景热噪声。
终端根据接收到的下行导频信息， 计算出下行信道的信息干扰比， 公式 如下：
SINRr
X, 其中， l是信道增益， il 是 SRS的发射功率， 是终端测量的下行 干扰功率， 该下行干扰功率包括下行接收干扰信息和背景热噪声。 终端根据 该信息干扰比计算出下行信道质量， 将该下行信道质量反馈给基站， 基站将 该下行信道质量作为对该终端的下行链路进行资源调度的参考信息。
但是， 这种方法造成上行信道反馈信息量巨大的问题， 因为， 目前在 TDD系统内， 上行 /下行信道由于在不同的频段， 因此具有不同的信道响应， 在下行调度时， 终端需要将下行信道接收到的信息， 通过上行信道反馈给基 站， 从而造成上行信道反馈信息量巨大的问题。
所以， 现有技术中提出了另一种方式， 该方式将上行信道的信息干扰比 作为对终端下行链路进行资源调度的参考信息。
首先， 基站接收到 SRS信息， 根据该 SRS的功率与上行干扰功率计算 出上行信道的信息干扰比， 即上行信道的信息干扰比等于 2与 I 的乘积， 再除以 1 12， 公式如下：
其中， SINRu为上行信道的信息干扰比， 为导频信息的信道增益， 为导频信息的发射功率， 2与 i 的乘积为导频信息的功率， 1¾112是基站测 量的上行干扰功率， 该上行干扰功率包括上行接收干扰信息和背景热噪声。 基站将该终端的上行信道的信息干扰比作为对终端的上行链路进行资源调 度的参考信息， 同时， 基站也将该终端的上行信道的信息干扰比作为对终端 的下行链路进行资源调度的参考信息。
在上行调度时， 基站将该终端的上行信道的信息干扰比作为对终端的上 行链路进行资源调度的参考信息， 同时， 基站也将该终端的上行信道信息干 扰比作为对终端的下行链路进行资源调度的参考信息，减少了将下行信道信 息反馈给基站的过程。
该方法尽管利用 TDD信道的互易性， 减少了信息调度的过程， 解决了 上行信道反馈信息量巨大的问题， 但基站在下行调度的时候， 并未考虑下行 信道的干扰信息， 却在下行信道的调度里， 参考上行信道的干扰信息， 作为 对终端进行上行资源调度的参考信息。上行干扰信息与下行干扰信息是不同 的， 因此， 造成下行信道信息调用质量不准确的问题， 从而降低下行信道传 输的吞吐量。
发明内容
有鉴于此，本发明实施例主要解决的技术问题在于提供了一种信息调度 方法， 可提高信道信息调度的质量。
为达到上述目的， 本发明实施例的技术方案是这样实现的：
一种信息调度方法， 该方法包括以下步骤：
基站接收调制后的第一导频信息；
根据该调制后的第一导频信息获得调制后第一导频信息携带的功率； 基站根据第一导频信息携带的功率对终端进行上行或下行的信息调度。 一种信息调度装置， 该装置包括接收单元、 计算单元以及调度单元， 其 中：
接收单元用于接收调制后的第一导频信息；
计算单元用于根据所述调制后的第一导频信息获得调制后第一导频信 息携带的功率；
调度单元用于根据所述的第一导频信息携带的功率对终端进行上行或 下行的调度。
基站根据接收的调制后的第一导频信息获得调制后第一导频信息携带 的功率； 根据该第一导频信息携带的功率对终端进行上行或下行的调度， 由 此可见， 在下行调度或上行调度时， 因参考调制后的第一导频信息， 即考虑 下行干扰信息， 因此在上行或下行的调度中能提高信道信息调度的质量， 同 时提高上行、 或下行信道的传输吞吐量。 另外， 在上行调度中在参考该第一 导频信息携带的功率还参考了上行干扰功率， 因此上行信道信息调度会更加 准确。 同时， 因基站根据接收的调制后的第一导频信息计算调制后第一导频 信息携带的功率， 基站根据调制后的第一导频信息携带的功率进行下行信息 调度， 减少了终端将下行信道接收到的信息通过上行信道反馈给基站的过 程， 从而解决了上行信道反馈信息量巨大的问题。 附图说明
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， 并不构成对本发明的限定。 在附图中：
图 1为本发明信息调度方法的第一实施方式流程示意图；
图 2为本发明信息调度方法的第二实施方式流程示意图；
图 3为本发明信息调度方法的装置的结构示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行 清楚、 完整的描述， 显然， 所描述的实施例仅仅是本发明一部份实施例， 而 不是全部的实施例。 其于本发明中的实施例， 本领域普通技术人员在没有做 出创造性劳动的前提下所获得的所有其它实施例， 都属于本发明保护的范 围。
如图 1所示， 其为本发明信息调度方法的第一实施方式流程示意图， 该 方法可以包括以下步骤：
步骤 101、 基站接收到调制后的第一导频信息；
该调制后的第一导频信息可以包括：
终端测量接收端的下行干扰电平， 终端将通过测量获得的接收端的下行 干扰电平调制在上行导频信息上， 即调制后的第一导频信息为 其中， s
11 11
为测量导频信息， |¾|为终端测量终端接收端的下行干扰电平， 即下行干扰 信息。
基站端的接收信息等于 h乘以 ， 之后再与 n相加， 公式如下：
Figure imgf000007_0001
hs 其中， r为基站端的接收信息， h为上行信道响应， s为测量导频信息， n 为基站接收端的噪声， |¾|为终端测量终端接收端的下行干扰电平， 即下 行干扰信息。
步骤 102、 基站根据该调制后的第一导频信息， 获得调制后第一导频 息携带的功率；
、 调制后第
Xr 获得接收端调制后导频信息携带的功率， 公式如下:
Figure imgf000008_0001
其中， Md为接收端导频信息携带的功率， ιι"ιι为导频信息的信道增益， 为调制后第一导频信息功率；
Figure imgf000008_0002
步骤 103、 基站根据所述的第一导频信息携带的功率对终端进行上行或 下行的信息调度。
所述基站根据调制后的导频信息， 获得调制后第一导频信息携带的功 率， 基站将该调制后第一导频信息携带的功率作为下行调度的参考信息； 所述基站根据调制后的导频信息， 获得调制后第一导频信息携带的功 率， 基站将该调制后第一导频信息携带的功率作为上行调度的参考信息。
基站根据接收的调制后的第一导频信息获得调制后第一导频信息携带 的功率， 根据该第一导频信息携带的功率对终端进行上行或下行的调度， 由 此可见， 在下行调度或上行调度的时候， 因参考调制后的第一导频信息， 即 考虑下行干扰信息， 因此在上行或下行的调度中能提高信道信息调度的质 量， 同时提高上行、 或下行信道的传输吞吐量。
如图 2所示， 本发明信息调度方法的第二实施方式为， 基站根据所述的 第一导频信息携带的功率对终端进行上行信息调度。 包括以下步骤：
步骤 201、 基站接收调制后第一导频信息；
步骤 202、 基站根据该调制后的第一导频信息与上行干扰功率获得上行 信息调度干扰信息， 可以包括：
A1 )所述基站根据接收端测量的上行干扰电平 | |， 获得上行干扰功率 l½l2。 所述上行干扰功率包括上行干扰信息功率与接收端的背景热噪声功 率。
A2 )所述基站根据该上行干扰功率与该调制后的第一导频信息携带的功 率获得上行调度参考信息， 上行调度的参考信息等于 11 与 ft的乘积即 Md， 再除以 Ι Γ。 公式可以为：
Figure imgf000009_0001
其中， Μυ为上行调度的参考信息， ιι"ιι为导频信息的信道增益， 为 调制后第一导频信息功率， I ll2为根据上行接收端干扰电平计算出的上行 干扰功率。
步骤 203、 基站根据上行调度参考信息进行上行信息调度。
本发明实施例在上行调度中， 参考了该第一导频信息携带的功率， 还参 考了上行干扰功率， 因此上行信道信息调度会更加准确。 同时， 因基站根据 接收的调制后的第一导频信息计算调制后第一导频信息携带的功率， 根据调 制后的第一导频信息携带的功率进行下行信息调度，减少了终端将下行信道 接收到的信息通过上行信道反馈给基站的过程， 从而解决了上行信道反馈信 息量巨大的问题。
基于上述方法， 图 3为本发明实施例的信息调度装置的结构图， 该装置 可以包括： 接收单元 301、 计算单元 302以及调度单元 303。 接收单元 301， 用于接收调制后的第一导频信息；
计算单元 302， 用于根据所述调制后的第一导频信息获得调制后第一导 频信息携带的功率；
其中， 计算单元 302可以包括：
第一计算模块 3021，用于根据所述调制后的第一导频信息获得调制后第 一导频信息功率， 可以包括：
所述基站根据调制后第一导频信息 ^， 获得调制后第一导频信息功率
Figure imgf000010_0001
第二计算模块 3022，用于根据所述第一导频信息功率与导频信息的信道 增益获取第一导频信息携带的功率， 可以包括： 所述基站根据导频信息的信道增
Figure imgf000010_0002
， 获得所述调制后第一导频信息携带的功率 MD， 即所述调制后第一导
Figure imgf000010_0003
频信息携带的功率为 l与 的乘积， 公式可以为:
Figure imgf000010_0004
获取模块 3023， 用于获取上行干扰功率；
第三计算模块 3024，用于根据上行干扰功率与调制后第一导频信息携带 的功率 MD对终端进行上行调度， 可以包括：
Figure imgf000010_0005
其中， Mu为上行调度参考信息， MD为第一导频信息携带的功率， I I 为上行干扰功率。
调度单元 303， 用于根据所述的第一导频信息携带的功率对终端进行上 行或下行的调度。
综上所述，基站根据接收的调制后的第一导频信息获得调制后第一导频 信息携带的功率； 根据该第一导频信息携带的功率对终端进行上行或下行的 调度， 由此可见， 在下行调度或上行调度的时， 因参考调制后的第一导频信 息， 即考虑下行干扰信息， 因此在上行或下行的调度中能提高信道信息调度 的质量， 同时提高上行、 或下行信道的传输吞吐量。 另外， 在上行调度中， 参考了该第一导频信息携带的功率， 还参考了上行干扰功率， 因此上行信道 信息调度会更加准确。 同时， 因基站根据接收的调制后的第一导频信息计算 调制后第一导频信息携带的功率， 基站根据调制后的第一导频信息携带的功 率进行下行信息调度，减少了终端将下行信道接收到的信息通过上行信道反 馈给基站的过程， 从而解决了上行信道反馈信息量巨大的问题。
通过以上的各实施例的描述， 本领域的技术人员可以清楚地了解到本发 明可借助软件及必需的通用硬件平台的方式来实现，当然，也可以通过硬件， 但很多情况下前者是更佳的实施方式。 基于这样的理解， 本发明的技术方案 本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来， 该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算 机设备 （可以是个人计算机， 服务器， 或者网络设备等）执行本发明各个实 施例所述的方法。
虽然通过参照本发明的某些优选实施方式， 已经对本发明进行了图示和 描述， 但本领域的普通技术人员应该明白， 可以在形式上和细节上对其作各 种改变， 而不偏离本发明的精神和范围。

Claims

权利要求书
1、 一种信息调度方法， 其特征在于， 所述方法包括以下步骤： 基站接收调制后的第一导频信息；
根据所述调制后的第一导频信息获得调制后第一导频信息携带的功率； 基站根据所述的第一导频信息携带的功率对终端进行上行或下行的信 息调度。
2、 根据权利要求 1所述的方法， 其特征在于：
所述调制后的第一导频信息包括终端将测量获得的下行干扰电平调制 在上行导频信息上的信息。
3、 根据权利要求 2所述的方法， 其特征在于， 所述终端将测量获得的 下行的干扰电平调制在上行导频信息的方法包括： 导频信息 s乘以上行干扰 电平 ll ll的倒数， 即调制后的第一导频信息为
4、 根据权利要求 1所述的方法， 其特征在于， 所述根据调制后的第一 导频信息获得调制后第一导频信息携带的功率包括：
根据所述调制后的第一导频信息获得调制后第一导频信息功率； 根据所述第一导频信息功率与导频信息的信道增益获取第一导频信息 携带的功率。
5、 根据权利要求 4所述的方法， 其特征在于，
所述根据所述调制后的第一导频信息获得调制后第一导频信息功率包 括：
所述基站根据调制后第一导频信息 ， 获得调制后第一导频信息功率
Figure imgf000012_0001
6、 根据权利要求 1一 5任意一项权利要求所述的方法， 其特征在于： 所述基站根据第一导频信息的功率与导频信息的信道增益获取第一导 频信息携带的功率， 包括: 所述基站根据导频信息的信道增
Figure imgf000013_0001
， 获得所述调制后第一导频信息携带的功率 MD， 即所述调制后第一导
Figure imgf000013_0002
频信息携带的功率为 IMI与 的乘积， 公式如下:
Figure imgf000013_0003
7、 根据权利要求 5所述的方法， 其特征在于， 所述根据所述的第一导 频信息携带的功率对终端进行上行调度还包括：
获得上行干扰功率， 根据所述上行干扰功率与第一导频信息携带的功率 对终端进行上行调度。
8、 根据权利要求 7所述的方法， 其特征在于， 所述获得上行干扰功率 具体包括： 所述基站根据接收端测量的上行干扰电平 |¾|，获得上行干扰功率 11^11 。
9、 根据权利要求 8所述的方法， 其特征在于， 根据所述上行干扰功率 与所述第一导频信息携带的功率对终端进行上行调度包括： 所述第一导频信息携带的功率除以所述上行干扰功率 ， 即
Figure imgf000013_0004
10、 根据权利要求 8所述的方法， 其特征在于， 所述上行干扰功率包括 上行干扰信息功率与接收端的背景热噪声功率。
11、 一种信息调度装置， 其特征在于， 所述装置包括：
接收单元， 用于接收调制后的第一导频信息；
计算单元，用于根据所述调制后的第一导频信息获得调制后第一导频信 息携带的功率； 调度单元，用于根据所述的第一导频信息携带的功率对终端进行上行或 下行的调度。
12、 根据权利要求 11所述的装置， 其特征在于， 所述计算单元包括： 第一计算模块，用于根据所述调制后的第一导频信息获得调制后第一导 频信息功率；
第二计算模块，用于根据所述第一导频信息功率与导频信息的信道增益 获取第一导频信息携带的功率。
13、 根据权利要求 12所述的装置， 其特征在于， 所述第一计算模块获 得调制后第一导频信息携带的功率具体根据如下公式：
所述基站根据调制后第一导频信息 ^， 获得调制后第一导频信息功率
Figure imgf000014_0001
14、 根据权利要求 13所述的装置， 其特征在于， 第二计算模块获取第 一导频信息携带的功率， 包括： 所述基站根据导频信息的信道增益 2、 调制后的第一导频信息功率 获得所述调制后第一导频信息携带的功率 MD， 即所述调制后第一导
Figure imgf000014_0002
频信息携带的功率为 2与 的乘积， 公式如下：
15、 根据权利要求 13所述的装置， 其特征在于， 所述的第一计算单 包括：
获取模块， 用于获取上行干扰功率， 具体包括， 所述基站根据接收端 的上行干扰电平 I J， 获得上行干扰功率 11½12； 第三计算模块，用于根据获取的上行干扰功率与调制后第一导频信息携 带的功率对终端进行上行调度， 具体包括， 所述第一导频信息携带的功率除 以所述上行干扰功率 ll¾ll2， 即
Figure imgf000015_0001
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