WO2012000256A1 - Method and control station for scheduling resource block - Google Patents

Method and control station for scheduling resource block Download PDF

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Publication number
WO2012000256A1
WO2012000256A1 PCT/CN2010/077972 CN2010077972W WO2012000256A1 WO 2012000256 A1 WO2012000256 A1 WO 2012000256A1 CN 2010077972 W CN2010077972 W CN 2010077972W WO 2012000256 A1 WO2012000256 A1 WO 2012000256A1
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Prior art keywords
priority
user
scheduling
paired
single scheduling
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PCT/CN2010/077972
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French (fr)
Chinese (zh)
Inventor
宁迪浩
朱登魁
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中兴通讯股份有限公司
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Publication of WO2012000256A1 publication Critical patent/WO2012000256A1/en

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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
    • H04L5/0037—Inter-user or inter-terminal allocation
    • 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
    • H04L5/0064—Rate requirement of the data, e.g. scalable bandwidth, data priority
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
    • H04W72/566—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient
    • 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
    • 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
    • H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload

Definitions

  • the present invention relates to the field of communications, and in particular to a method and a control station for scheduling resource blocks.
  • BACKGROUND OF THE INVENTION MIMO (Multiple Input Multiple Output) technology is a major breakthrough in smart antenna technology in the field of wireless mobile communications.
  • the technology can multiply the capacity and spectrum utilization of the communication system without increasing the bandwidth; multipath can be used to mitigate multipath fading, and the common channel interference can be effectively eliminated, the reliability of the channel can be improved, and the reliability can be reduced.
  • the bit error rate is a key technology used in the new generation of mobile communication systems.
  • the control station side and the terminal side are configured to configure multiple sets of transmitting/receiving antennas. It is widely used in combination with MIMO signal processing. This method is called SU-MIMO (Single User-MIMO) because it is still BS (Base Station) and MS (Mobile Subscriber). , mobile users) transfer data point-to-point.
  • SU-MIMO Single User-MIMO
  • MS Mobile Subscriber
  • MU-MIMO multi-user MIMO
  • ⁇ ⁇ sends data to multiple users.
  • the channel from the control station to the user terminal is referred to as the downlink channel.
  • the downlink-to-multipoint channel between a BS and an MS is extended to a point-to-multipoint channel between a BS and multiple MSs, caused by spatially dispersed users.
  • the difference in spatial characteristics in the control station side antenna array allows the control station to simultaneously communicate with multiple users in the same frequency channel.
  • the user's scheduling problem is an important issue that determines which users are scheduled on which resource block.
  • the control station determines which users are suitable for user scheduling according to the channel space characteristic information of the user, and the user that can be scheduled on the same resource block is called a pairing user.
  • the scheduling algorithm also determines which users can perform multi-user scheduling (MU scheduling), and which resource block performs MU scheduling. After identifying several users for MU After scheduling, it is necessary to determine the priority of these MU scheduling users.
  • the inventor has found that the scheduling priority calculation method of the related art can only handle the case of a single user, and the scheduling priority of a single user is usually calculated according to the channel quality and service type of the user.
  • all the paired users that jointly schedule a resource block as a scheduling whole cannot be processed by the scheduling priority calculation method of the related art. For example, if there are 4 paired users whose channel quality and service type may be different, the common priority of the 4 paired users cannot be determined.
  • a primary object of the present invention is to provide a method and a control station for scheduling resource blocks to solve at least the above problem of failing to properly schedule resource blocks.
  • a method for scheduling a resource block for a multiple input multiple output MIMO system including: the control station setting a pairing user according to a single scheduling priority of each user of the paired users of the resource block to be scheduled Public priority; The control station schedules resource blocks to be scheduled according to the common priority.
  • a control station for a multiple input multiple output MIMO system, including: a setting module, configured to set a pair according to a single scheduling priority of each user of a paired users of a resource block to be scheduled The public priority of the user; the scheduling module is configured to schedule the resource block to be scheduled according to the public priority set by the setting module.
  • the common priority is set for the paired user, so that the paired user can participate in the scheduling of the resource block as a whole scheduling, and the problem that the resource block cannot be reasonably scheduled in the multi-user MIMO scheduling is solved, thereby achieving reasonable utilization. The effect of the resource.
  • FIG. 1 is a schematic structural diagram of a multi-user MIMO system according to the related art
  • FIG. 2 is a flowchart of a method for scheduling resource blocks according to Embodiment 1 of the present invention
  • 3 is a flowchart of a method for scheduling resource blocks according to Embodiment 2 of the present invention
  • FIG. 1 is a schematic structural diagram of a multi-user MIMO system according to the related art
  • FIG. 2 is a flowchart of a method for scheduling resource blocks according to Embodiment 1 of the present invention
  • 3 is a flowchart of a method for scheduling resource blocks according to Embodiment 2 of the present invention
  • FIG. 1 is a schematic structural diagram of a multi-user MIMO system according to the related art
  • FIG. 2 is a flowchart of a method for scheduling resource blocks according to Embodiment 1 of the present invention
  • 3 is a flowchart of a method for scheduling resource blocks according to Embodiment 2 of the present invention
  • FIG. 1 is
  • FIG. 4 is a flowchart of a method for scheduling resource blocks according to Embodiment 3 of the present invention
  • FIG. 5 is a flowchart according to an embodiment of the present invention.
  • FIG. 6 is a flowchart of a method for scheduling resource blocks according to Embodiment 5 of the present invention;
  • FIG. 7 is a structural block diagram of a control station according to Embodiment 7 of the present invention.
  • the MIMO system includes a control station (for example, a BS or a relay station) and an MS.
  • the control station transmits data to the MS through multiple antennas, and the control station can determine whether there is a paired user according to the channel information fed back by the MS, for example, if several MSs feed back If the channel information is different, you can use these MSs as a pair of paired users.
  • the paired users of the group are simultaneously scheduled to a resource block.
  • There is a wireless connection between the MS and the Control Station which complies with the relevant communication standards.
  • Step S202 The control station is configured according to resources to be scheduled.
  • the single scheduling priority of each user in the paired users of the block sets the common priority of the paired users; when the control station performs the scheduling of the resource blocks, if it is found that the resource blocks to be scheduled have the possibility that the paired users jointly schedule the resource blocks,
  • the public priority will be set for the paired user.
  • the common priority setting can be used in various ways according to the system requirements. For example, if there are a total of K users in the paired users, the control station can first obtain the single user of the paired users.
  • the control station finds the minimum single scheduling priority from the obtained single scheduling priority; sets the minimum unidirectional priority to the public priority of the matching user;
  • the public priority may be compared with the single scheduling priority of the other users of the scheduled users of the resource block to be scheduled except the paired user, according to the comparison result.
  • the scheduling resource block is scheduled for scheduling. For example, when the result of the comparison is that the value of the common priority is greater than the value of the single scheduling priority of other users, the resource block to be scheduled is scheduled to the paired user, that is, all the users in the paired user use the resource block at the same time; The result is that the value of the single scheduling priority of other users has a value greater than the common priority, and the resource block to be scheduled is scheduled to the user with the largest median value of the single scheduling priority of other users.
  • the single scheduling priority of each user in the paired users may be updated according to the scheduling result.
  • the single scheduling priority of other users may also be updated at the same time.
  • the scheduling priority calculation method in the related art can only process the case of a single user, and cannot process the paired user;
  • the single scheduling priority of each user in the user sets the common priority of the pairing user, and the public priority is used as the scheduling priority of the scheduling whole (that is, the pairing user) to participate in the scheduling.
  • the paired user can participate in the scheduling of the resource block as a whole scheduling, and solve the problem that the resource block cannot be reasonably scheduled, thereby achieving the effect of rationally utilizing the resource.
  • Embodiment 2 This embodiment controls In the scheduling process, for a resource block to be scheduled, there are K pairs of users " ⁇ ," 2 , ⁇ " ⁇ jointly scheduling this resource block, see Figure 3, the method of scheduling resource blocks includes the following Step 4: Step S302, at the scheduling time t, the control station acquires a single scheduling priority pt of each user in the paired user P 2 ( .
  • Step S304 the control station finds the maximum single scheduling priority from the acquired single scheduling priority; Step S306, the control station sets the found maximum single scheduling priority to the common priority of the paired user.
  • step S308 the control station will match the common priority of the paired user with the order of other users.
  • the common priority of the paired user is set to the maximum single scheduling priority, so that the paired user can participate in the scheduling of the resource block as a whole scheduling, and the problem that the resource block cannot be properly scheduled is solved. , in order to achieve the effect of rational use of resources.
  • the control station has a possibility that the K paired users MI , M 2 , ... jointly schedule the resource block for a resource block to be scheduled, see FIG. 4, scheduling resource blocks.
  • the method includes the following steps: Step S402: At the scheduling time t, the control station acquires a single scheduling priority of each user in the paired users.
  • the control station has a K pairing user " ⁇ ," 2 , ⁇ " Co-schedule this resource May, 5, scheduled resource blocks method comprising the steps see FIG. 4 Poly: Step S502, at the scheduling time t, the control station acquires a single scheduling priority of each user in the paired users.
  • the single scheduling priority of the user is updated according to the resource block scheduling. This embodiment is set by the multi-user MIMO scheduling.
  • the common priority of the paired users is the average of the single scheduling priorities in the paired users, which enables the paired users to participate in the scheduling of the resource blocks as a whole scheduling, and solves the problem that the resource blocks cannot be properly scheduled, thereby achieving reasonable utilization of resources.
  • Embodiment 5 the control station is in the scheduling process, and for a resource block to be scheduled, there are K pairs of users ⁇ ,, ⁇ 2 , ..., and the possibility of jointly scheduling the resource block, see Figure 6 , scheduling resource blocks
  • Step 4 Poly method comprising: step S602, the scheduling time t, the control station acquires paired users preferred single scheduling each user , P K ( ; Step S604, the control station sets the weighted average value of the acquired single scheduling priority to the common priority of the paired user; that is, ⁇ +...+ ⁇ , where Step S606, the control station compares the common priority of the paired user with the single scheduling priority of other users, and determines the scheduling of the resource block.
  • the single scheduling priority of the user is updated according to the resource block scheduling situation.
  • This embodiment is in multi-user MIMO
  • the control station is in the process of scheduling. For a resource block to be scheduled, there are P groups of matched users, each pair of users has K b K 2 ... K users, users in each group of the P group of paired users may jointly schedule the resource blocks.
  • the control station first obtains the single scheduling priority of all possible scheduled users.
  • One of the provided methods respectively setting the common priority ⁇ ⁇ ⁇ of the i-th group of users; after completing the common priority setting of the group users, compare this The public priority of the group of users is determined according to the result of the comparison.
  • the single-user scheduling priority of the user is updated according to the scheduling of the resource block.
  • the embodiment provides a control station for a multiple input multiple output system, and the control station includes: a setting module 72, configured to prioritize each user according to each user of the paired users of the resource block to be scheduled. Level setting the public priority of the paired user;
  • the scheduling module 74 is coupled to the setting module 72 for scheduling the resource blocks to be scheduled according to the common priority set by the setting module 72.
  • the control station in this embodiment can participate in the scheduling of the resource block by using the common priority for the paired user, and can solve the problem that the resource block cannot be reasonably scheduled when the multi-user MIMO scheduling is performed, thereby effectively and reasonably utilize resource.
  • the setting module 72 can be implemented by one of the following: a first setting unit, configured to acquire a single scheduling priority of each user in the paired user, and find a maximum single scheduling priority from the obtained single scheduling priority; The single scheduling priority is set to the common priority of the paired user; the second setting unit is configured to obtain a single scheduling priority of each user in the paired user, and find the minimum single scheduling priority from the obtained single scheduling priority; The minimum single scheduling priority is set to the public priority of the paired user; the third setting unit is configured to obtain a single scheduling priority of each user in the paired user, and set an average value of the obtained single scheduling priority to the paired user.
  • a first setting unit configured to acquire a single scheduling priority of each user in the paired user, and find a maximum single scheduling priority from the obtained single scheduling priority
  • the single scheduling priority is set to the common priority of the paired user
  • the second setting unit is configured to obtain a single scheduling priority of each user in the paired user, and find the minimum single scheduling priority from the obtained single scheduling priority
  • the public priority is set; the fourth setting unit is configured to obtain a single scheduling priority of each user in the paired user, and set a weighted average value of the obtained single scheduling priority to a common priority of the paired user.
  • the scheduling module 74 includes: an obtaining unit, configured to acquire a single scheduling priority of other users of the scheduled users of the resource block to be scheduled except the pairing user; and a comparing unit, configured to use the public priority with other users The single scheduling priority is compared; the scheduling unit is configured to schedule the resource blocks to be scheduled according to the comparison result.
  • the control station when the result of the comparison is that the value of the common priority is greater than the value of the single scheduling priority of other users, the resource block to be scheduled is scheduled to the paired user; when the result of the comparison is the value of the single scheduling priority of other users, If there is a value greater than the common priority, the resource block to be scheduled is scheduled to the user with the largest median value of the single scheduling priority of other users.
  • the control station In order to ensure that the single scheduling priority of the user matches the current channel quality of the user, the control station needs to update the single scheduling priority after each scheduling is completed. Therefore, the control station further includes: an updating module, configured to use the scheduling result.
  • the paired user When the control station in this embodiment performs resource block scheduling, the paired user is used as a scheduling whole, and a common priority is set for the paired user, so that the paired user can participate in the scheduling of the resource block, and at the same time, after the scheduling is completed, each user is updated in time.
  • the single scheduling priority can make the scheduling of the control station each time based on the current channel quality of the user, and achieve the purpose of reasonably scheduling resource blocks.
  • the pairing user in the above embodiment performs the pairing operation as follows:
  • the control station first calculates the priority corresponding to each user, and sets it to ⁇ ⁇ 2 , ⁇ , ⁇ ⁇ .
  • this embodiment sets the priority of the user Pi to be the maximum
  • the channel quality of the user 1 ⁇ on each resource block to be scheduled is the best, and is set to MCS and greater than the MU-MIMO channel quality threshold TMCS preset by the system (ie, the first threshold;) , so the user will use MU-MIMO mode to transfer data.
  • the control station is the user according to the scheduling criterion.
  • the user group ⁇ allocates resources, and the control station deletes the currently allocated resources in the available resources.
  • the control station saves the UI mode corresponding to each user and the corresponding user group.
  • the control station searches for and paired users in ⁇ ⁇ ,, for example, calculates the channel correlation between each user except ⁇ ⁇ ⁇ ⁇ , which is ⁇ 2,. ⁇ / ⁇ , and each The priority of each user is /? 2 , ⁇ , and then the control station calculates the equivalent priority coefficient corresponding to each user pair: (where ", is
  • the present invention achieves the following technical effects:
  • the single scheduling priority of the paired user is first obtained, and then the common priority of the paired user is set, and then the scheduling is completed.
  • the usage attribution of the current scheduling resource block that is, whether the MU scheduling is performed by the paired user or the single user scheduling (SU scheduling) by other users; meanwhile, after each scheduling is completed, the single scheduling priority of all users is updated, and The user's single scheduling priority is updated in time, and the rational allocation of resources is utilized.
  • a general-purpose computing device which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices.
  • 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.

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Abstract

A method and control station for scheduling resource block are provided in the present invention. The method, used in a Multiple Input Multiple Output (MIMO) system, includes that: a control station, according to the single scheduling priority of each user among the multiple matched users of a resource block waiting for scheduling, sets a public priority of the matched users; and the control station, according to the public priority, schedules the scheduling resource block. By the present invention, the matched users can attend the resource block scheduling as a scheduling unity, the problem that rational scheduling can not be executed to the resource block during Multiple Users MIMO (MU-MIMO) scheduling is solved, and thereby the effect of rational utilization of resources is achieved.

Description

一种调度资源块的方法和控制站 技术领域 本发明涉及通信领域，具体而言， 涉及一种调度资源块的方法和控制站。 背景技术 MIMO ( Multiple Input Multiple Output , 多输入多输出）技术是无线移动 通信领域中智能天线技术的重大突破。 该技术能在不增加带宽的情况下成倍 地提高通信***的容量和频谱利用率； 可以利用多径来减轻多径衰落， 并能 有效地消除共道千扰， 提高信道的可靠性， 降低误码率， 是新一代移动通信 ***釆用的关键技术。 目前在已经成熟或者接近成熟的 3G ( the third generation mobile communications, 第三代移动通信） /B3G ( Beyond 3G, 超 3G ) 无线通信系 统中， 控制站侧和终端侧通过配置多组发射 /接收天线并结合 MIMO信号处 理的方案被广泛的釆用， 这种方法被称为 SU-MIMO ( Single User-MIMO, 单用户 MIMO ), 因为其本质依然是 BS ( Base Station, 基站）与 MS ( Mobile Subscriber , 移动用户） 之间点对点的传输数据。 在新一代的无线通信协议标准中（例如： 3GPP的 LTE-A, IEEE802.16m ) 均支持多用户 MIMO ( MU-MIMO )这一功能，参见图 1所示的多用户 MIMO ***的结构示意图， 其中， 一个天线对应多个用户， 即天线通过信道  TECHNICAL FIELD The present invention relates to the field of communications, and in particular to a method and a control station for scheduling resource blocks. BACKGROUND OF THE INVENTION MIMO (Multiple Input Multiple Output) technology is a major breakthrough in smart antenna technology in the field of wireless mobile communications. The technology can multiply the capacity and spectrum utilization of the communication system without increasing the bandwidth; multipath can be used to mitigate multipath fading, and the common channel interference can be effectively eliminated, the reliability of the channel can be improved, and the reliability can be reduced. The bit error rate is a key technology used in the new generation of mobile communication systems. Currently, in the 3G (the third generation mobile communication) / B3G (Beyond 3G) wireless communication system that is mature or near mature, the control station side and the terminal side are configured to configure multiple sets of transmitting/receiving antennas. It is widely used in combination with MIMO signal processing. This method is called SU-MIMO (Single User-MIMO) because it is still BS (Base Station) and MS (Mobile Subscriber). , mobile users) transfer data point-to-point. In the new generation of wireless communication protocol standards (for example: 3GPP LTE-A, IEEE802.16m), the function of multi-user MIMO (MU-MIMO) is supported. See the structure diagram of the multi-user MIMO system shown in FIG. Wherein one antenna corresponds to multiple users, that is, the antenna passes through the channel
Ηκ向多个用户发送数据。 由控制站到用户终端的信道被称为下行信道。 与下 行 SU-MIMO相比较， 下行 MU-MIMO 4巴一个 BS与一个 MS之间点对点的 信道扩展为一个 BS与多个 MS之间的点对多点的信道， 通过由空间上分散 的用户引起的控制站侧天线阵列中空间特征的差异， 控制站可以在相同的频 率信道中同时与多个用户通信。 用户的调度问题是一个重要的问题， 它决定哪些用户何时在哪个资源块 上被调度。 通常来说， 控制站会根据用户的信道空间特征信息， 决定哪些用 户适合进行用户调度， 这种可以调度在同一资源块上的用户称为配对用户。 在 MU-MIMO***中， 调度算法还决定哪些用户可以进行多用户调度 （MU 调度）， 在哪个资源块上进行 MU调度等问题。 在确定了几个用户进行 MU 调度以后， 就需要确定这几个 MU调度用户的优先级。 发明人发现相关技术的调度优先级计算方法仅能处理单个用户的情况， 单个用户的调度优先级通常依据用户的信道质量和业务类型进行计算。然而， 所有共同调度某资源块的配对用户作为一个调度整体， 相关技术的调度优先 级计算方法不能对该调度整体进行处理。 例如， 有 4个配对用户， 他们的信 道质量和业务类型可能不同， 则无法确定这 4个配对用户的公用优先级。 进 而导致在多用户 MIMO调度时， 无法对资源块进行合理调度。 发明内容 本发明的主要目的在于提供一种调度资源块的方法和控制站， 以至少解 决上述的无法对资源块进行合理调度的问题。 根据本发明的一个方面， 提供了一种调度资源块的方法， 用于多输入多 输出 MIMO***， 包括： 控制站根据待调度资源块的配对用户中每个用户的 单调度优先级设置配对用户的公用优先级； 控制站根据公用优先级对待调度 资源块进行调度。 根据本发明的另一方面， 提供了一种控制站， 用于多输入多输出 MIMO ***， 包括： 设置模块， 用于根据待调度资源块的配对用户中每个用户的单 调度优先级设置配对用户的公用优先级； 调度模块， 用于根据设置模块设置 的公用优先级对待调度资源块进行调度。 通过本发明， 釆用对配对用户设置公用优先级， 可以使配对用户作为一 个调度整体参与资源块的调度，解决了在多用户 MIMO调度时无法对资源块 进行合理调度的问题， 进而达到合理利用资源的效果。 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， 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是根据相关技术的多用户 MIMO***的结构示意图； 图 2是才艮据本发明实施例 1的调度资源块的方法流程图； 图 3是才艮据本发明实施例 2的调度资源块的方法流程图； 图 4是才艮据本发明实施例 3的调度资源块的方法流程图； 图 5是才艮据本发明实施例 4的调度资源块的方法流程图； 图 6是根据本发明实施例 5的调度资源块的方法流程图； 以及 图 7是 居本发明实施例 7的控制站的结构框图。 具体实施方式 下文中将参考附图并结合实施例来详细说明本发明。 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组合。 Η κ sends data to multiple users. The channel from the control station to the user terminal is referred to as the downlink channel. Compared with downlink SU-MIMO, the downlink-to-multipoint channel between a BS and an MS is extended to a point-to-multipoint channel between a BS and multiple MSs, caused by spatially dispersed users. The difference in spatial characteristics in the control station side antenna array allows the control station to simultaneously communicate with multiple users in the same frequency channel. The user's scheduling problem is an important issue that determines which users are scheduled on which resource block. Generally, the control station determines which users are suitable for user scheduling according to the channel space characteristic information of the user, and the user that can be scheduled on the same resource block is called a pairing user. In the MU-MIMO system, the scheduling algorithm also determines which users can perform multi-user scheduling (MU scheduling), and which resource block performs MU scheduling. After identifying several users for MU After scheduling, it is necessary to determine the priority of these MU scheduling users. The inventor has found that the scheduling priority calculation method of the related art can only handle the case of a single user, and the scheduling priority of a single user is usually calculated according to the channel quality and service type of the user. However, all the paired users that jointly schedule a resource block as a scheduling whole cannot be processed by the scheduling priority calculation method of the related art. For example, if there are 4 paired users whose channel quality and service type may be different, the common priority of the 4 paired users cannot be determined. This in turn leads to the inability to properly schedule resource blocks during multi-user MIMO scheduling. SUMMARY OF THE INVENTION A primary object of the present invention is to provide a method and a control station for scheduling resource blocks to solve at least the above problem of failing to properly schedule resource blocks. According to an aspect of the present invention, a method for scheduling a resource block for a multiple input multiple output MIMO system is provided, including: the control station setting a pairing user according to a single scheduling priority of each user of the paired users of the resource block to be scheduled Public priority; The control station schedules resource blocks to be scheduled according to the common priority. According to another aspect of the present invention, a control station is provided for a multiple input multiple output MIMO system, including: a setting module, configured to set a pair according to a single scheduling priority of each user of a paired users of a resource block to be scheduled The public priority of the user; the scheduling module is configured to schedule the resource block to be scheduled according to the public priority set by the setting module. Through the invention, the common priority is set for the paired user, so that the paired user can participate in the scheduling of the resource block as a whole scheduling, and the problem that the resource block cannot be reasonably scheduled in the multi-user MIMO scheduling is solved, thereby achieving reasonable utilization. The effect of the resource. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are set to illustrate,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, In the drawings: FIG. 1 is a schematic structural diagram of a multi-user MIMO system according to the related art; FIG. 2 is a flowchart of a method for scheduling resource blocks according to Embodiment 1 of the present invention; 3 is a flowchart of a method for scheduling resource blocks according to Embodiment 2 of the present invention; FIG. 4 is a flowchart of a method for scheduling resource blocks according to Embodiment 3 of the present invention; FIG. 5 is a flowchart according to an embodiment of the present invention. FIG. 6 is a flowchart of a method for scheduling resource blocks according to Embodiment 5 of the present invention; and FIG. 7 is a structural block diagram of a control station according to Embodiment 7 of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.
MIMO***包括控制站（例如， BS或中继站）和 MS , 控制站通过多个 天线与 MS传输数据， 控制站可以根据 MS反馈的信道信息确定是否有配对 用户存在， 例如， 如果几个 MS反馈的信道信息的差异较大， 则可以将这几 个 MS作为一组配对用户， 在进行资源块调度时， 可以 ^！夺该组配对用户同时 调度到一个资源块上。 MS 与控制站之间为无线连接， 该无线连接遵循相关 通信标准。 本发明下述实施例均以该 MIMO***为例进行说明。 实施例 1 图 2示出了才艮据本发明实施例的调度资源块的方法流程图， 该方法用于 多输入多输出 MIMO***， 包括以下步 4聚： 步骤 S202,控制站根据待调度资源块的配对用户中每个用户的单调度优 先级设置配对用户的公用优先级； 控制站在进行资源块的调度时， 如果发现待调度的资源块存在着配对用 户共同调度此资源块的可能， 将会为配对用户设置公用优先级， 该公用优先 级的设置可以根据***需要釆用多种方式，例如：配对用户中共有 K个用户， 则控制站可以先获取配对用户中每个用户的单调度优先级， 然后从下述方法 中选择一种进行设置： 1 ) 从获取的单调度优先级查找出最大单调度优先级， 将最大单调度优 先 级 设 置 为 配 对 用 户 的 公 用 优 先 级 。 即 PM(t) = Pm i) = ax(Pl(tlp2(tl...,pK(t))； 其中, (t)表示用户 k 当前的单调 度优先级； The MIMO system includes a control station (for example, a BS or a relay station) and an MS. The control station transmits data to the MS through multiple antennas, and the control station can determine whether there is a paired user according to the channel information fed back by the MS, for example, if several MSs feed back If the channel information is different, you can use these MSs as a pair of paired users. When scheduling resource blocks, you can ^! The paired users of the group are simultaneously scheduled to a resource block. There is a wireless connection between the MS and the Control Station, which complies with the relevant communication standards. The following embodiments of the present invention are described by taking the MIMO system as an example. Embodiment 1 FIG. 2 is a flowchart of a method for scheduling resource blocks according to an embodiment of the present invention. The method is used in a multiple input multiple output MIMO system, and includes the following steps: Step S202: The control station is configured according to resources to be scheduled. The single scheduling priority of each user in the paired users of the block sets the common priority of the paired users; when the control station performs the scheduling of the resource blocks, if it is found that the resource blocks to be scheduled have the possibility that the paired users jointly schedule the resource blocks, The public priority will be set for the paired user. The common priority setting can be used in various ways according to the system requirements. For example, if there are a total of K users in the paired users, the control station can first obtain the single user of the paired users. Scheduling the priority, and then selecting one of the following methods to set: 1) Find the maximum single scheduling priority from the obtained single scheduling priority, and set the maximum single scheduling priority to the common priority of the paired users. which is P M (t) = P m i) = a x( Pl (tlp 2 (tl..., p K (t)); where (t) represents the current single scheduling priority of user k;
2) 控制站从获取的单调度优先级查找出最小单调度优先级； 将最小单 调 度 优 先 级 设 置 为 配 对 用 户 的 公 用 优 先 级 ； 即 2) The control station finds the minimum single scheduling priority from the obtained single scheduling priority; sets the minimum unidirectional priority to the public priority of the matching user;
3) 将获取的单调度优先级的平均值设置为配对用户的公用优先级； 即 3) Set the average value of the acquired single scheduling priority to the common priority of the paired users;
Pu^) = P = ( A W + P2 ) +… + P > I K； Pu ^) = P = (AW + P 2) + ... + P>IK;
4 ) 将获取的单调度优先级的加权平均值设置为配对用户的公用优先级； 即 PMi -Pti -mP.it +α2ρ2( β2十…+ ^ ， 其中 !eR (, = 1,2. ) , 3;eR (i = \,2...K) , ai = ^ ； 4) Set the weighted average of the acquired single scheduling priorities to the common priority of the paired users; ie PMi -Pti -mP.it +α 2 ρ 2 ( β2十...+ ^ , where !eR (, = 1, 2. ) , 3 ; eR (i = \, 2...K) , ai = ^ ;
Pl(t) + p2(t) + ... + pK(t) 其中， A )可以釆用比例公平算法 （ proportional fair )得到， 即釆用以 下公式： Pk(t = ^~, 式中， 为自然数， (t)表示第 个用户当前的信道 质量， λ^) = ( -ι》， t 为当前调度时刻， FQ t-i))是上一次调度时刻 后更新的第 k 个用 户 的历 史调度容量的加权平均值； 例如，
Figure imgf000006_0001
步骤 S204 , 控制站 居上述公用优先级对待调度资源块进行调度。 控制站对配对用户的公用优先级进行设置后， 则可以将该公用优先级与 待调度资源块的调度用户中除该配对用户之外的其他用户的单调度优先级进 行比较， 根据比较的结果对待调度资源块进行调度。 例如， 当比较的结果为 该公用优先级的值大于其他用户的单调度优先级的值， 将待调度资源块调度 给配对用户， 即配对用户中的所有用户同时使用该资源块； 当比较的结果为 其他用户的单调度优先级的值中有大于该公用优先级的值， 将待调度资源块 调度给其他用户的单调度优先级的中值最大的用户。 控制站完成本次调度后， 可以根据调度结果更新配对用户中每个用户的 单调度优先级， 当然也可以同时更新其他用户的单调度优先级。 具体单调度 优先级的更新方法， 可以釆用上述 pk(t、 = 实现。 相关技术中的调度优先级计算方法仅能处理单个用户的情况， 不能对配 对用户进行处理； 本实施例依据配对用户中每个用户的单调度优先级设置配 对用户的公用优先级， 将该公用优先级作为一个调度整体 （即指配对用户） 的调度优先级参与调度。 本实施例在多用户 MIMO调度时， 通过对配对用户设置公用优先级， 可 以使配对用户作为一个调度整体参与资源块的调度， 解决了无法对资源块进 行合理调度的问题， 进而达到合理利用资源的效果。 实施例 2 本实施例控制站在调度过程中， 对一个待调度的资源块， 存在着 K个配 对用户 "ι，"2，···"κ共同调度此资源块的可能， 参见图 3 , 调度资源块的方法包 括以下步 4聚： 步骤 S302, 在调度时刻 t, 控制站获取配对用户中每个用户的单调度优 先级 p t P2( . , PK( ; 步骤 S304, 控制站从获取的单调度优先级查找出最大单调度优先级； 步骤 S306,控制站将查找到的最大单调度优先级设置为配对用户的公用 优先级， 即 p t = pmJt) = max(Pl(t\ p2(tl ..., pK(t))。 步骤 S308,控制站将配对用户的公用优先级与其他用户的单调度优先级 进行比较， 确定该资源块的调度。 其中， ^(0可以釆用实施例 1中的方式得到， 即 ( ) = 。 在完成一次调度后，根据资源块调度的情况， 更新用户的单调度优先级。 本实施例在多用户 MIMO调度时，通过设置配对用户的公用优先级为最 大单调度优先级， 可以使配对用户作为一个调度整体参与资源块的调度， 解 决了无法对资源块进行合理调度的问题， 进而达到合理利用资源的效果。 实施例 3 本实施例控制站在调度过程中， 对一个待调度的资源块， 存在着 K个配 对用户 MI,M2,... 共同调度此资源块的可能， 参见图 4, 调度资源块的方法包 括以下步 4聚： 步骤 S402, 在调度时刻 t, 控制站获取配对用户中每个用户的单调度优 先级
Figure imgf000008_0001
,PK( ; 步骤 S404, 控制站从获取的单调度优先级查找出最小单调度优先级； 步骤 S406,控制站将查找到的最小单调度优先级设置为配对用户的公用 优先级， 即 p t = pmm(t) = m(Pl(t\p2(tl...,pK(t))； 步骤 S408,控制站将配对用户的公用优先级与其他用户的单调度优先级 进行比较， 确定该资源块的调度。 其中， ^(0可以釆用实施例 1中的方式得到， 即 A(t) = ^。 在完成一次调度后，根据资源块调度的情况， 更新用户的单调度优先级。 本实施例在多用户 MIMO调度时，通过设置配对用户的公用优先级为最 小单调度优先级， 可以使配对用户作为一个调度整体参与资源块的调度， 解 决了无法对资源块进行合理调度的问题， 进而达到合理利用资源的效果。 实施例 4 本实施例控制站在调度过程中， 对一个待调度的资源块， 存在着 K个配 对用户 "ι，"2，···"κ共同调度此资源块的可能， 参见图 5, 调度资源块的方法包 括以下步 4聚： 步骤 S502, 在调度时刻 t, 控制站获取配对用户中每个用户的单调度优 级
Figure imgf000009_0001
.,pK t ; 步骤 S504,控制站将获取的单调度优先级的平均值设置为配对用户的公 用优先级； 即 pM(t = Pmean(t) = (Pi(t) + p2(t) + ... + pK(t))/K； 步骤 S506,控制站将配对用户的公用优先级与其他用户的单调度优先级 进行比较， 确定该资源块的调度。 其中， ^(0可以釆用实施例 1中的方式得到， 即 ( ) = 。 在完成一次调度后，根据资源块调度的情况， 更新用户的单调度优先级。 本实施例在多用户 MIMO调度时，通过设置配对用户的公用优先级为配 对用户中的单调度优先级的平均值， 可以使配对用户作为一个调度整体参与 资源块的调度， 解决了无法对资源块进行合理调度的问题， 进而达到合理利 用资源的效果。 实施例 5 本实施例控制站在调度过程中， 对一个待调度的资源块， 存在着 K个配 对用户 Μι，Μ2，···^共同调度此资源块的可能， 参见图 6, 调度资源块的方法包 括以下步 4聚： 步骤 S602, 在调度时刻 t, 控制站获取配对用户中每个用户的单调度优
Figure imgf000009_0002
,PK( ; 步骤 S604,控制站将获取的单调度优先级的加权平均值设置为配对用户 的公用 优先级； 即 ；^ 二^ 二 ^ + ^ +…+ ^^^ ， 其 中
Figure imgf000009_0003
步骤 S606,控制站将配对用户的公用优先级与其他用户的单调度优先级 进行比较， 确定该资源块的调度。 其中， ^(0可以釆用实施例 i中的方式得到， pk( = LL。 在完成一次调度后，根据资源块调度的情况， 更新用户的单调度优先级。 本实施例在多用户 MIMO调度时，通过设置配对用户的公用优先级为配 对用户中的单调度优先级的加权平均值， 可以使配对用户作为一个调度整体 参与资源块的调度， 解决了无法对资源块进行合理调度的问题， 进而达到合 理利用资源的效果。 实施例 6 本实施例控制站在调度过程中， 对一个待调度的资源块， 存在着 P组配 对用户， 每组配对用户分别有 KbK2...K/>个用户， 这 P组配对用户的每一组中 的用户都可能共同调度此资源块。 则控制站首先获取所有可能调度用户的单 调度优先级。 依照上述实施例 2-5 中所提供的方法中的一种， 分别设置第 i组共 个 用户的公用优先级 ρκ ή； 在完成这 Ρ组用户的公用优先级设置后， 比较这 Ρ 组用户的公用优先级， 根据比较的结果确定资源块的调度。 在完成一次调度后， 根据资源块调度的情况， 更新用户的单用户调度优 先级。 本实施例在存在多组配对用户的情况下， 通过设置每组配对用户的公用 优先级， 可以使配对用户作为一个调度整体参与资源块的调度， 解决了无法 对资源块进行合理调度的问题， 进而达到合理利用资源的效果。 实施例 7 参见图 7,本实施例提供了一种控制站，用于多输入多输出 ΜΙΜΟ***， 该控制站包括： 设置模块 72 , 用于根据待调度资源块的配对用户中每个用户的单调度优 先级设置配对用户的公用优先级； 调度模块 74 , 连接至设置模块 72 , 用于根据设置模块 72设置的公用优 先级对待调度资源块进行调度。 本实施例的控制站通过对配对用户设置公用优先级， 可以将配对用户作 为一个调度整体参与资源块的调度， 解决了多用户 MIMO调度时， 无法合理 调度资源块的问题， 进而可以有效合理地利用资源。 优选地， 设置模块 72可以通过以下之一实现： 第一设置单元， 用于获取配对用户中每个用户的单调度优先级， 从获取 的单调度优先级查找出最大单调度优先级； 将最大单调度优先级设置为该配 对用户的公用优先级； 第二设置单元， 用于获取配对用户中每个用户的单调度优先级， 从获取 的单调度优先级查找出最小单调度优先级； 将最小单调度优先级设置为该配 对用户的公用优先级； 第三设置单元， 用于获取配对用户中每个用户的单调度优先级， 将获取 的单调度优先级的平均值设置为该配对用户的公用优先级； 第四设置单元， 用于获取配对用户中每个用户的单调度优先级， 将获取 的单调度优先级的加权平均值设置为该配对用户的公用优先级。 优选地， 调度模块 74 包括： 获取单元， 用于获取待调度资源块的调度 用户中除配对用户之外的其他用户的单调度优先级； 比较单元， 用于将该公 用优先级与其他用户的单调度优先级进行比较； 调度单元， 用于根据比较的 结果对待调度资源块进行调度。 例如， 当比较的结果为该公用优先级的值大 于其他用户的单调度优先级的值， 将待调度资源块调度给该配对用户； 当比 较的结果为其他用户的单调度优先级的值中有大于该公用优先级的值， 将待 调度资源块调度给其他用户的单调度优先级的中值最大的用户。 为了保证用户的单调度优先级与用户当前的信道质量匹配， 控制站每次 完成调度后， 需要对单调度优先级进行更新， 因此， 该控制站后还包括： 更 新模块， 用于根据调度结果更新配对用户中每个用户的单调度优先级； 本实施例中用户的单调度优先级按照如下方法得到： 设置第 k个用户当 前的单调度优先级 /^ ) = ^^ , 其中， 为自然数， (t)表示第 个用户当 前的信道质量， λ^) = < -ι》， t 为当前调度时刻， FQ t-l))是上一次 调度时刻后更新的第 个用户的历史调度容量的加权平均值。 本实施例的控制站进行资源块调度时， 将配对用户作为一个调度整体， 为配对用户设置公用优先级， 使配对用户能够参与资源块的调度， 同时在调 度完成后， 及时更新每个用户的单调度优先级， 能够使控制站每次的调度均 是基于用户当前的信道质量进行的， 达到合理调度资源块的目的。 以上实施例中的配对用户是按照如下方法进行配对操作的： Pl (t) + p 2 (t) + ... + p K (t) where A) can be obtained using a proportional fair algorithm, ie using the following formula: Pk (t = ^~, In the natural number, (t) represents the current channel quality of the first user, λ^) = ( -ι), t is the current scheduling time, FQ ti)) is the history of the kth user updated after the last scheduling time a weighted average of the scheduled capacity; for example,
Figure imgf000006_0001
Step S204: The control station performs scheduling on the common priority scheduling resource block. After the control station sets the public priority of the paired user, the public priority may be compared with the single scheduling priority of the other users of the scheduled users of the resource block to be scheduled except the paired user, according to the comparison result. The scheduling resource block is scheduled for scheduling. For example, when the result of the comparison is that the value of the common priority is greater than the value of the single scheduling priority of other users, the resource block to be scheduled is scheduled to the paired user, that is, all the users in the paired user use the resource block at the same time; The result is that the value of the single scheduling priority of other users has a value greater than the common priority, and the resource block to be scheduled is scheduled to the user with the largest median value of the single scheduling priority of other users. After the control station completes the scheduling, the single scheduling priority of each user in the paired users may be updated according to the scheduling result. Of course, the single scheduling priority of other users may also be updated at the same time. The method for updating the specific single scheduling priority may be implemented by using the above p k (t, =. The scheduling priority calculation method in the related art can only process the case of a single user, and cannot process the paired user; The single scheduling priority of each user in the user sets the common priority of the pairing user, and the public priority is used as the scheduling priority of the scheduling whole (that is, the pairing user) to participate in the scheduling. In this embodiment, in the multi-user MIMO scheduling, By setting a common priority for the paired user, the paired user can participate in the scheduling of the resource block as a whole scheduling, and solve the problem that the resource block cannot be reasonably scheduled, thereby achieving the effect of rationally utilizing the resource. Embodiment 2 This embodiment controls In the scheduling process, for a resource block to be scheduled, there are K pairs of users "ι," 2 , ···"κ jointly scheduling this resource block, see Figure 3, the method of scheduling resource blocks includes the following Step 4: Step S302, at the scheduling time t, the control station acquires a single scheduling priority pt of each user in the paired user P 2 ( . , P K ( ; Step S304, the control station finds the maximum single scheduling priority from the acquired single scheduling priority; Step S306, the control station sets the found maximum single scheduling priority to the common priority of the paired user. Level, ie pt = p m Jt) = m a x( Pl (t\ p 2 (tl ..., p K (t)). In step S308, the control station will match the common priority of the paired user with the order of other users. The scheduling priority is compared to determine the scheduling of the resource block, where ^(0 can be obtained by using the method in Embodiment 1, that is, ( ) = . After completing one scheduling, updating the user according to the resource block scheduling situation. Single scheduling priority. In the multi-user MIMO scheduling, the common priority of the paired user is set to the maximum single scheduling priority, so that the paired user can participate in the scheduling of the resource block as a whole scheduling, and the problem that the resource block cannot be properly scheduled is solved. , in order to achieve the effect of rational use of resources. Embodiment 3 In this embodiment, the control station has a possibility that the K paired users MI , M 2 , ... jointly schedule the resource block for a resource block to be scheduled, see FIG. 4, scheduling resource blocks. The method includes the following steps: Step S402: At the scheduling time t, the control station acquires a single scheduling priority of each user in the paired users.
Figure imgf000008_0001
, P K ( ; Step S404, the control station finds the minimum single scheduling priority from the acquired single scheduling priority; Step S406, the control station sets the found minimum single scheduling priority to the common priority of the paired user, that is, pt = p mm (t) = m( Pl (t\p 2 (tl..., p K (t)); Step S408, the control station compares the common priority of the paired user with the single scheduling priority of other users Determining the scheduling of the resource block, where ^(0 can be obtained by using the method in Embodiment 1, that is, A(t) = ^. After completing one scheduling, updating the single scheduling of the user according to the scheduling of the resource block In this embodiment, in the case of multi-user MIMO scheduling, by setting the common priority of the paired user to the minimum single scheduling priority, the paired user can participate in the scheduling of the resource block as a whole scheduling, and the resource block cannot be reasonably solved. The problem of scheduling, and then the effect of rational utilization of resources. Embodiment 4 In this embodiment, the control station has a K pairing user "ι," 2 ,····" Co-schedule this resource May, 5, scheduled resource blocks method comprising the steps see FIG. 4 Poly: Step S502, at the scheduling time t, the control station acquires a single scheduling priority of each user in the paired users.
Figure imgf000009_0001
., p K t; step S504, the control station of the acquired average single scheduling priority paired user to set the priority of the public; i.e. p M (t = Pmean (t ) = (Pi (t) + p 2 ( t) + ... + p K (t)) / K; Step S506, the control station compares the common priority of the paired user with the single scheduling priority of other users, and determines the scheduling of the resource block. 0 can be obtained by the method in Embodiment 1, that is, ( ) = . After the completion of one scheduling, the single scheduling priority of the user is updated according to the resource block scheduling. This embodiment is set by the multi-user MIMO scheduling. The common priority of the paired users is the average of the single scheduling priorities in the paired users, which enables the paired users to participate in the scheduling of the resource blocks as a whole scheduling, and solves the problem that the resource blocks cannot be properly scheduled, thereby achieving reasonable utilization of resources. Embodiment 5 In this embodiment, the control station is in the scheduling process, and for a resource block to be scheduled, there are K pairs of users Μ ,, Μ2 , ..., and the possibility of jointly scheduling the resource block, see Figure 6 , scheduling resource blocks Step 4 Poly method comprising: step S602, the scheduling time t, the control station acquires paired users preferred single scheduling each user
Figure imgf000009_0002
, P K ( ; Step S604, the control station sets the weighted average value of the acquired single scheduling priority to the common priority of the paired user; that is, ^^^^^^^^+...+^^^, where
Figure imgf000009_0003
Step S606, the control station compares the common priority of the paired user with the single scheduling priority of other users, and determines the scheduling of the resource block. Where ^(0 can be obtained by the method in the embodiment i, p k ( = LL . After the completion of one scheduling, the single scheduling priority of the user is updated according to the resource block scheduling situation. This embodiment is in multi-user MIMO When scheduling, by setting the common priority of the paired users to the weighted average of the single scheduling priorities in the paired users, the paired users can participate in the scheduling of the resource blocks as a whole scheduling, and solve the problem that the resource blocks cannot be properly scheduled. In this embodiment, the control station is in the process of scheduling. For a resource block to be scheduled, there are P groups of matched users, each pair of users has K b K 2 ... K users, users in each group of the P group of paired users may jointly schedule the resource blocks. Then the control station first obtains the single scheduling priority of all possible scheduled users. According to the above embodiments 2-5 One of the provided methods, respectively setting the common priority ρ κ共 of the i-th group of users; after completing the common priority setting of the group users, compare this The public priority of the group of users is determined according to the result of the comparison. After the scheduling is completed, the single-user scheduling priority of the user is updated according to the scheduling of the resource block. By setting the common priority of each pair of users, the paired user can participate in the scheduling of resource blocks as a whole scheduling, and solve the problem that the resource blocks cannot be properly scheduled, thereby achieving the effect of rationally utilizing resources. Referring to FIG. 7, the embodiment provides a control station for a multiple input multiple output system, and the control station includes: a setting module 72, configured to prioritize each user according to each user of the paired users of the resource block to be scheduled. Level setting the public priority of the paired user; The scheduling module 74 is coupled to the setting module 72 for scheduling the resource blocks to be scheduled according to the common priority set by the setting module 72. The control station in this embodiment can participate in the scheduling of the resource block by using the common priority for the paired user, and can solve the problem that the resource block cannot be reasonably scheduled when the multi-user MIMO scheduling is performed, thereby effectively and reasonably utilize resource. Preferably, the setting module 72 can be implemented by one of the following: a first setting unit, configured to acquire a single scheduling priority of each user in the paired user, and find a maximum single scheduling priority from the obtained single scheduling priority; The single scheduling priority is set to the common priority of the paired user; the second setting unit is configured to obtain a single scheduling priority of each user in the paired user, and find the minimum single scheduling priority from the obtained single scheduling priority; The minimum single scheduling priority is set to the public priority of the paired user; the third setting unit is configured to obtain a single scheduling priority of each user in the paired user, and set an average value of the obtained single scheduling priority to the paired user. The public priority is set; the fourth setting unit is configured to obtain a single scheduling priority of each user in the paired user, and set a weighted average value of the obtained single scheduling priority to a common priority of the paired user. Preferably, the scheduling module 74 includes: an obtaining unit, configured to acquire a single scheduling priority of other users of the scheduled users of the resource block to be scheduled except the pairing user; and a comparing unit, configured to use the public priority with other users The single scheduling priority is compared; the scheduling unit is configured to schedule the resource blocks to be scheduled according to the comparison result. For example, when the result of the comparison is that the value of the common priority is greater than the value of the single scheduling priority of other users, the resource block to be scheduled is scheduled to the paired user; when the result of the comparison is the value of the single scheduling priority of other users, If there is a value greater than the common priority, the resource block to be scheduled is scheduled to the user with the largest median value of the single scheduling priority of other users. In order to ensure that the single scheduling priority of the user matches the current channel quality of the user, the control station needs to update the single scheduling priority after each scheduling is completed. Therefore, the control station further includes: an updating module, configured to use the scheduling result. Update the single scheduling priority of each user in the paired user; in this embodiment, the single scheduling priority of the user is obtained as follows: Set the current single scheduling priority of the kth user /^) = ^^ , where, is a natural number , (t) indicates the first user The previous channel quality, λ ^) = < -ι》, t is the current scheduling time, FQ tl)) is the weighted average of the historical scheduling capacity of the first user updated after the last scheduling time. When the control station in this embodiment performs resource block scheduling, the paired user is used as a scheduling whole, and a common priority is set for the paired user, so that the paired user can participate in the scheduling of the resource block, and at the same time, after the scheduling is completed, each user is updated in time. The single scheduling priority can make the scheduling of the control station each time based on the current channel quality of the user, and achieve the purpose of reasonably scheduling resource blocks. The pairing user in the above embodiment performs the pairing operation as follows:
1 ) 控制站首先计算每个用户对应的优先级， 设为^ ρ2,···,ρσ。 1) The control station first calculates the priority corresponding to each user, and sets it to ^ ρ 2 ,···, ρ σ .
2) 从计算出的优先级中查找值最大的优先级， 本实施例设查找出的为 用户 的优先级 Pi最大； 2) Finding the highest priority from the calculated priorities, this embodiment sets the priority of the user Pi to be the maximum;
3)计算用户 1^在每个待调度资源块上的信道质量， 选择值最大的信道 质量的资源块作为指定资源块；用户 1^在该资源块上的信道质量大于第一门 限， 则用户 Ui在该指定资源块上使用 MU-MIMO模式传输数据。 本实施例在***可用带宽之中， 用户 在位置（资源块） P上的信道质 量最好， 设为 MCS 且 大于***预先设置的 MU-MIMO信道质量门 限值 TMCS (即第一门限；)， 所以用户 将使用 MU-MIMO模式传输数据。 如果用户 在位置（资源块） P上的信道质量 不大于***预先设 置的 MU-MIMO信道质量门限值 TMCS (即第一门限；)， 则用户 在位置 P上 使用 SU-MIMO传输数据。 4) 将 Ω中除 之外的满足条件： 在位置 P的信道质量大于门限 TMCS 的用户组成一组， 本实施例假设为第一集合 ΩΡΜ ={ 2,...,£^}。 3) Calculating the channel quality of the user 1^ on each resource block to be scheduled, and selecting the resource block with the highest channel quality as the specified resource block; if the channel quality of the user 1^ is greater than the first threshold, the user Ui transmits data using the MU-MIMO mode on the specified resource block. In this embodiment, among the available bandwidth of the system, the channel quality of the user on the location (resource block) P is the best, and is set to MCS and greater than the MU-MIMO channel quality threshold TMCS preset by the system (ie, the first threshold;) , so the user will use MU-MIMO mode to transfer data. If the channel quality of the user on the location (resource block) P is not greater than the system preset MU-MIMO channel quality threshold T MCS (ie, the first threshold;), the user transmits data using the SU-MIMO at location P. 4) Satisfaction condition other than Ω division: A group of users whose channel quality is greater than the threshold T MCS at position P, this embodiment assumes the first set Ω ΡΜ = { 2 , ..., £^}.
5 )控制站在 ΩΡ Μ 中寻找与 Ui配对使用 MU-MIMO的用户，且最终有 K 个用户形成一个使用 MU-MMO的用户组， 表示为 = Ε/2,···,Ε^}。 如果 ^ = 1 ,表示 ΩΡΜυ中没有用户与 成组使用 MU-MIMO,则 使用 SU-MIMO 模式， 否则 M中 个用户使用 MU-MIMO模式。 控制站将 Ω中的用户集合 = { ， C/2 , .··, }删除， 即更新待调度用户集 合为 Ω Ω-Af, 此后， 在调度周期触发时刻， 控制站根据调度准则为该用 户 或者用户组 Λί分配资源， 同时控制站在可用资源中将当前分配的资源 删除。 控制站保存每个用户对应的 ΜΙΜΟ模式以及相应的用户组。 控制站在 ΩΡ Μυ中搜索与 配对的用户，比如：计算 与 ΩΡ Μυ Ω 里 面除 外的每个用户之间的信道相关性， 其值分别为 ^ 2,.··/·^ , 同时每个用 户的优先级分别为 /?2, ^ , 然后控制站计算 与每个用户配对对应的等效 优先级系数： (其中"、 为
Figure imgf000013_0001
5) The control station looks for Ω Ρ Μ to find the user who uses MU-MIMO paired with Ui, and finally K users form a user group using MU-MMO, expressed as = Ε/ 2 ,···,Ε^} . in case ^ = 1 , indicating that there is no user and group in Ω ΡΜυ using MU-MIMO, then SU-MIMO mode is used, otherwise M users in M use MU-MIMO mode. The control station deletes the user set = { , C / 2 , . . . , } in Ω, that is, updates the set of users to be scheduled to Ω Ω-Af. Thereafter, at the triggering time of the scheduling period, the control station is the user according to the scheduling criterion. Or the user group Λί allocates resources, and the control station deletes the currently allocated resources in the available resources. The control station saves the UI mode corresponding to each user and the corresponding user group. The control station searches for and paired users in Ω Ρ ,, for example, calculates the channel correlation between each user except Ω Ρ Μυ Ω, which is ^ 2,.··/·^, and each The priority of each user is /? 2 , ^ , and then the control station calculates the equivalent priority coefficient corresponding to each user pair: (where ", is
Figure imgf000013_0001
实数）， 然后选出 , 2≤ ί≤ 的最大值， 设为 ρ , 则说明 与 Uk配对 使 用 MU-MIMO 发 送 数 据 。 然 后 将 ΩΡΜΕί Ε^,. ,Ε^} Real number), then select the maximum value of 2≤ ί ≤ and set it to ρ, which means that MU-MIMO is used to transmit data in pair with U k . Then Ω ΡΜΕί Ε^,. ,Ε^}
Ω H -AJ更新为 ΩΡΜυ
Figure imgf000013_0002
, 将待调度用户 集合更新为 Ω = {Ε/2, C^+ ^C/^C^+^^C/ }, 进行下一个用户的配对 操作； 对于再次的 MU-MIMO配对， 重复上述过程即可。 重复该 MU-MIMO 配对和调度步骤直至待调度的资源块 N≤ 0或者 Ω为空集。 从以上的描述中可以看出， 本发明实现了如下技术效果： 以上实施例在 多用户 MIMO调度时， 首先获得配对用户的单调度优先级， 然后设置配对用 户的公用优先级， 进而完成调度， 明确了当前调度资源块的使用归属， 即是 由配对用户进行 MU调度， 还是由其他用户进行单用户调度（SU调度）； 同 时， 每次调度完成后， 更新所有用户的单调度优先级， 能够使用户的单调度 优先级得到及时更新， 利用资源的合理分配。 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。 以上所述仅为本发明的优选实施例而已， 并不用于限制本发明， 对于本 领域的技术人员来说， 本发明可以有各种更改和变化。 凡在本发明的 ^"神和 原则之内， 所作的任何修改、 等同替换、 改进等， 均应包含在本发明的保护 范围之内。 Ω H -AJ updated to Ω ΡΜυ
Figure imgf000013_0002
Update the set of users to be scheduled to Ω = {Ε/ 2 , C^+ ^C/^C^+^^C/ } to perform the pairing operation of the next user; for the MU-MIMO pairing again, repeat the above process Just fine. The MU-MIMO pairing and scheduling steps are repeated until the resource block N ≤ 0 or Ω to be scheduled is an empty set. As can be seen from the above description, the present invention achieves the following technical effects: In the above embodiment, in the multi-user MIMO scheduling, the single scheduling priority of the paired user is first obtained, and then the common priority of the paired user is set, and then the scheduling is completed. Defining the usage attribution of the current scheduling resource block, that is, whether the MU scheduling is performed by the paired user or the single user scheduling (SU scheduling) by other users; meanwhile, after each scheduling is completed, the single scheduling priority of all users is updated, and The user's single scheduling priority is updated in time, and the rational allocation of resources is utilized. Obviously, those skilled in the art should understand that the above 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. Thus, the invention is not limited to any specific combination of hardware and software. The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the scope of the present invention are intended to be included within the scope of the present invention.

Claims

权 利 要 求 书 Claim
1. 一种调度资源块的方法， 用于多输入多输出 MIMO***， 其特征在于， 包括： A method for scheduling resource blocks for a multiple input multiple output MIMO system, comprising:
控制站根据待调度资源块的配对用户中每个用户的单调度优先级设 置所述配对用户的公用优先级； 所述控制站 居所述公用优先级对所述待调度资源块进行调度。  The control station sets a common priority of the paired user according to a single scheduling priority of each of the paired users of the resource block to be scheduled; the control station schedules the to-be-scheduled resource block according to the common priority.
2. 根据权利要求 1所述的方法， 其特征在于， 控制站根据待调度资源块的 配对用户中每个用户的单调度优先级设置所述配对用户的公用优先级包 括： 2. The method according to claim 1, wherein the control station sets the common priority of the paired user according to a single scheduling priority of each of the paired users of the resource block to be scheduled:
所述控制站获取所述配对用户中每个用户的单调度优先级， 从获取 的单调度优先级查找出最大单调度优先级； 将所述最大单调度优先级设 置为所述配对用户的公用优先级。  The control station acquires a single scheduling priority of each user in the paired user, and finds a maximum single scheduling priority from the obtained single scheduling priority; and sets the maximum single scheduling priority to be used by the paired user. priority.
3. 根据权利要求 1所述的方法， 其特征在于， 控制站根据待调度资源块的 配对用户中每个用户的单调度优先级设置所述配对用户的公用优先级包 括： The method according to claim 1, wherein the control station sets the common priority of the paired user according to a single scheduling priority of each of the paired users of the resource block to be scheduled:
所述控制站获取所述配对用户中每个用户的单调度优先级， 从获取 的单调度优先级查找出最小单调度优先级； 将所述最小单调度优先级设 置为所述配对用户的公用优先级。  The control station acquires a single scheduling priority of each user in the paired user, and finds a minimum single scheduling priority from the obtained single scheduling priority; and sets the minimum single scheduling priority to be used by the paired user. priority.
4. 根据权利要求 1所述的方法， 其特征在于， 控制站根据待调度资源块的 配对用户中每个用户的单调度优先级设置所述配对用户的公用优先级包 括： The method according to claim 1, wherein the control station sets the common priority of the paired user according to a single scheduling priority of each of the paired users of the resource block to be scheduled:
所述控制站获取所述配对用户中每个用户的单调度优先级， 将获取 的单调度优先级的平均值设置为所述配对用户的公用优先级。  The control station acquires a single scheduling priority of each user in the paired users, and sets an average value of the obtained single scheduling priorities as a common priority of the paired users.
5. 根据权利要求 1所述的方法， 其特征在于， 控制站根据待调度资源块的 配对用户中每个用户的单调度优先级设置所述配对用户的公用优先级包 括： The method according to claim 1, wherein the control station sets the common priority of the paired user according to a single scheduling priority of each of the paired users of the resource block to be scheduled:
所述控制站获取所述配对用户中每个用户的单调度优先级， 将获取 的单调度优先级的加权平均值设置为所述配对用户的公用优先级。 The control station acquires a single scheduling priority of each user in the paired users, and sets a weighted average value of the obtained single scheduling priorities as a common priority of the paired users.
6. 根据权利要求 1-5任一项所述的方法， 其特征在于， 所述控制站根据所 述公用优先级对所述资源块进行调度包括： The method according to any one of claims 1-5, wherein the scheduling of the resource block by the control station according to the common priority comprises:
所述控制站获取所述待调度资源块的调度用户中除所述配对用户之 外的其他用户的单调度优先级； 将所述公用优先级与所述其他用户的单 调度优先级进行比较， 根据比较的结果对所述待调度资源块进行调度。  The control station acquires a single scheduling priority of other users of the scheduled users of the to-be-scheduled resource block except the paired user; and compares the common priority with the single scheduling priority of the other user, The to-be-scheduled resource block is scheduled according to the result of the comparison.
7. 根据权利要求 6所述的方法， 其特征在于， 所述根据比较的结果对所述 待调度资源块进行调度包括： 先级的值， 将所述待调度资源块调度给所述配对用户； The method according to claim 6, wherein the scheduling the resource block to be scheduled according to the result of the comparison comprises: a value of a priority, scheduling the resource block to be scheduled to the paired user ;
当比较的结
Figure imgf000016_0001
When comparing knots
Figure imgf000016_0001
用优先级的值， 将所述待调度资源块调度给所述其他用户的单调度优先 级中值最大的用户。  The resource block to be scheduled is scheduled to the user with the largest median single scheduling priority of the other users by using the value of the priority.
8. 根据权利要求 1-5任一项所述的方法， 其特征在于， 所述控制站根据所
Figure imgf000016_0002
根据调 度结果更新所述配对用户中每个用户的单调度优先级； The method according to any one of claims 1 to 5, wherein the control station is based on
Figure imgf000016_0002
Updating a single scheduling priority of each of the paired users according to the scheduling result;
所述配对用户中每个用户的单调度优先级按照如下方法得到： 设置 所述配对用户中第 A 个用户当前的单调度优先级 (t) = ^"， 其中， k 为自然数， (t)表示所述第 个用户当前的信道质量， λ^) = ( -ι》， t为当前调度时刻， FQ t - 1))是上一次调度时刻后更新的所述第 k个用 户的历史调度容量的加权平均值。 The single scheduling priority of each user in the paired user is obtained as follows: Set the current single scheduling priority of the A user in the paired user (t) = ^", where k is a natural number, (t) Representing the current channel quality of the first user, λ ^) = ( -ι ", t is the current scheduling time, FQ t - 1)) is the historical scheduling capacity of the kth user updated after the last scheduling time Weighted average.
9. 一种控制站， 用于多输入多输出 MIMO***， 其特征在于， 包括： 9. A control station for a multiple input multiple output MIMO system, comprising:
设置模块， 用于根据待调度资源块的配对用户中每个用户的单调度 优先级设置所述配对用户的公用优先级；  a setting module, configured to set a common priority of the paired user according to a single scheduling priority of each user of the paired users of the resource block to be scheduled;
调度模块， 用于根据所述设置模块设置的公用优先级对所述待调度 资源块进行调度。 And a scheduling module, configured to schedule the to-be-scheduled resource block according to a common priority set by the setting module.
0. 根据权利要求 9所述的控制站， 其特征在于， 所述设置模块包括以下之 第一设置单元，用于获取所述配对用户中每个用户的单调度优先级， 从获取的单调度优先级查找出最大单调度优先级； 将所述最大单调度优 先级设置为所述配对用户的公用优先级； The control station according to claim 9, wherein the setting module includes the following first setting unit, configured to acquire a single scheduling priority of each user in the paired user, and obtain a single scheduling from the obtained The priority is used to find the maximum single scheduling priority; the maximum single scheduling priority is set to the common priority of the paired user;
第二设置单元，用于获取所述配对用户中每个用户的单调度优先级， 从获取的单调度优先级查找出最小单调度优先级； 将所述最小单调度优 先级设置为所述配对用户的公用优先级；  a second setting unit, configured to acquire a single scheduling priority of each user in the paired user, and find a minimum single scheduling priority from the obtained single scheduling priority; and set the minimum single scheduling priority to the pairing User's public priority;
第三设置单元，用于获取所述配对用户中每个用户的单调度优先级， 将获取的单调度优先级的平均值设置为所述配对用户的公用优先级； 第四设置单元，用于获取所述配对用户中每个用户的单调度优先级， 将获取的单调度优先级的加权平均值设置为所述配对用户的公用优先 级。  a third setting unit, configured to acquire a single scheduling priority of each user in the paired user, and set an average value of the obtained single scheduling priority to a common priority of the paired user; and a fourth setting unit, configured to: Obtaining a single scheduling priority of each of the paired users, and setting a weighted average of the obtained single scheduling priorities as a common priority of the paired users.
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