WO2012075746A1 - 资源管理方法及基站 - Google Patents

资源管理方法及基站 Download PDF

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Publication number
WO2012075746A1
WO2012075746A1 PCT/CN2011/071562 CN2011071562W WO2012075746A1 WO 2012075746 A1 WO2012075746 A1 WO 2012075746A1 CN 2011071562 W CN2011071562 W CN 2011071562W WO 2012075746 A1 WO2012075746 A1 WO 2012075746A1
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Prior art keywords
user
segment
sector
level information
adjacent
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PCT/CN2011/071562
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English (en)
French (fr)
Inventor
张晓�
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中兴通讯股份有限公司
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Publication of WO2012075746A1 publication Critical patent/WO2012075746A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/30TPC using constraints in the total amount of available transmission power
    • H04W52/36TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
    • H04W52/362Aspects of the step size
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/06TPC algorithms
    • H04W52/14Separate analysis of uplink or downlink
    • H04W52/146Uplink power control
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/18TPC being performed according to specific parameters
    • H04W52/26TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service]
    • H04W52/265TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service] taking into account the quality of service QoS
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/30TPC using constraints in the total amount of available transmission power
    • H04W52/34TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
    • H04W52/343TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading taking into account loading or congestion level

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a resource management method and a base station. Background technique
  • the uplink physical layer of the Long Term Evolution (LTE) system uses Single-Carrier Frequency Division Multiplexing (SC-FDMA) technology to keep the traffic signals of users belonging to the same cell from each other. Orthogonal, so as to avoid mutual interference of users in the same cell, and ensure the accuracy of service signal transmission and reception.
  • SC-FDMA Single-Carrier Frequency Division Multiplexing
  • the frequency reuse factor is one, that is, all cells in the coverage of the entire system use the same frequency band to provide services for users in the cell, interference between cells still exists, and in particular, it is serious for edge users. Small interval interference.
  • the frequency division multiplexing technology cannot eliminate the interference between users in neighboring cells, so reducing the interference between cells as much as possible becomes a key point in the research of LTE uplink system.
  • Inter-Cell Interference Coordination is proposed to understand the inter-cell interference problem of LTE systems. Its core is to rationally allocate resources between multiple cells, so that the resources of the edge users of neighboring cells are as orthogonal as possible, thereby reducing the interference of users at the edge of adjacent cells.
  • the prior art related to the present invention provides a method for performing power control by using an indication of an overload indication indication (01, Overload Indication), which may be summarized as follows:
  • the base station is in a frequency band, and the measurement resource is interfered by users in the neighboring base station. Size, when the interference exceeds a certain threshold, the base station periodically or triggerly sends 01 level information to the neighboring base station, indicating the degree of interference overload.
  • the base station that receives the 01 level information will query the resource usage in the past period of time, and use the method of reducing the transmission power or changing the resource scheduling for the user equipment that uses the frequency band corresponding to the interference overload indication to achieve the purpose of reducing system interference. .
  • the inventor also found that when the system power control is performed by using the 01 level information, the inventor adjusts the power of the user only according to the historical resource occupation situation, and does not consider the user occupying the resource block at the current time.
  • the level of interference is also not considered to adjust the 01 level according to the resource utilization of the system, resulting in the 01 level judgment being inaccurate and the power adjustment performance being degraded. Summary of the invention
  • a main object of the present invention is to provide a resource management method and a base station, which solve the problem of performance loss caused by power adjustment using only user history resource scheduling information and 01 level information in the prior art.
  • a resource management method which includes:
  • the base station acquires the comprehensive sector level information of the adjacent sector received by the user in the sector at the current time;
  • the user is not Synchronous long power adjustment.
  • the base station acquires, by the user in the sector, that the user receives the RB segment at the current time.
  • the comprehensive 01 level information of the adjacent sectors in the statistical window length includes:
  • the base station acquires 01 level information on each RB segment of the sector, sends 01 level information on each RB segment to the adjacent sector, and receives the adjacent fan sent by the adjacent sector through the local sector. 01 level information on each RB segment of the zone;
  • the adjusting the 01 level information on each RB segment of the adjacent sector includes:
  • Determining whether the interference estimation value exceeds a threshold if yes, maintaining a level of 01 transmitted by the neighboring sector at a resource location occupied by the user, if the threshold is lower than the threshold, lowering the adjacent fan The level of 01 sent by the zone at the resource location occupied by the user.
  • the calculating, according to the 01 level information on each RB segment of each adjusted adjacent sector, the comprehensive 01 level information of all adjacent sectors on the occupied RB segment of the user specifically: according to each adjustment
  • the 01 level on each RB segment sent by the adjacent sector calculates the comprehensive 01 level information of all adjacent RB segments occupied by the user, and then calculates the entire RB occupied by the user according to the 01 level occupied by the user on each RB segment.
  • the invention also provides a base station, comprising:
  • a level information acquiring unit configured to acquire comprehensive 01 level information of a neighboring sector received by the user in the current time occupied by the RB segment within the statistical window length;
  • a quality information obtaining unit configured to obtain a user's service quality satisfaction
  • a time ratio obtaining unit configured to acquire a time ratio of the user occupying the RB segment within the statistical window length
  • a power adjustment unit configured to: according to the comprehensive 01 level information of the adjacent sectors received by the user occupying the RB segment at the current time in the statistical window length, the user's service quality satisfaction, and the user within the statistical window length
  • the time ratio of occupying the RB segment is used to perform asynchronous power adjustment for the user.
  • the level information acquiring unit includes:
  • a level information sending and receiving subunit configured to acquire 01 level information on each RB segment of the sector, send 01 level information on each RB segment of the sector to an adjacent sector, and receive phase through the sector 01 level information on each RB segment of the adjacent sector transmitted by the neighboring sector;
  • a level information adjusting subunit configured to adjust 01 level information on each RB segment of the adjacent sector to obtain 01 level information on each RB segment of the adjusted adjacent sector
  • a level information calculation subunit configured to calculate comprehensive 01 level information of all adjacent sectors on the entire RB segment occupied by the user according to the 01 level information on each RB segment of each adjusted adjacent sector.
  • the level information sending and receiving subunit is further configured to classify the 01 level information on each RB segment of all the received neighboring sectors.
  • the level information adjusting subunit includes:
  • a resource location information obtaining module configured to traverse all users of the sector, and obtain resource location information occupied by users at the current time in the sector;
  • An interference estimation module configured to calculate a interference estimation value of a target strong interference neighboring sector and each user to the strong interference neighboring sector at a current time of each user; a level determination processing module, configured to determine whether the interference estimation value exceeds a threshold, and if yes, maintaining a level of 01 sent by the neighboring sector at a resource location occupied by the user, if the threshold is lower than the threshold , the level of 01 sent by the neighboring sector at the resource location occupied by the user is reduced.
  • the level information calculation sub-unit is configured to calculate comprehensive 01 level information of all adjacent sectors on the occupied RB segment of the user according to the 01 level on each RB segment sent by each adjusted adjacent sector, and then The comprehensive 01 level information on the entire RB segment occupied by the user is calculated according to the comprehensive 01 level of all adjacent sectors on the occupied RB segment of the user.
  • the technical solution of the present invention has the following beneficial effects:
  • the resource management method and the base station provided by the present invention adjust the 01 level more accurately and effectively according to the interference size of the current time of the user to the adjacent sector, and simultaneously occupy the current resource according to the user time.
  • the time ratio and the user's quality of service satisfaction adjust the user's transmit power, effectively solving the performance loss problem caused by power adjustment using only the user history resource scheduling information and the 01 level information indication in the prior art, and improving the power adjustment performance.
  • FIG. 1 is a flowchart of a method according to an embodiment of the present invention
  • step S110 of FIG. 1 is a specific flowchart of step S110 of FIG. 1;
  • FIG. 3 is a specific flowchart of step S112 of FIG. 2;
  • FIG. 4 is a schematic structural diagram of a base station according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a level information acquiring unit of FIG. 4;
  • FIG. 6 is a schematic structural diagram of the level information adjustment subunit of FIG. 5. detailed description
  • the embodiment of the invention provides a resource management method. As shown in FIG. 1, the method includes the following steps:
  • the base station acquires comprehensive 01 level information of a neighboring sector received by a user in the sector at a current time in a radio bearer (RB, Radio Bearer) segment within a statistical window length;
  • RB Radio Bearer
  • each sector transmits the 01 level information of the sector to all the adjacent sectors, and simultaneously receives the 01 level information sent by the base stations of other adjacent sectors.
  • one sector is selected as a reference, and the steps of the method are performed, but the steps of the method are applied to each sector in the network.
  • the step S110 includes the following steps:
  • the base station acquires 01 level information on each RB segment of the sector, and sends 01 level information on each RB segment of the sector to the adjacent sector, and receives the adjacent sector sent by the adjacent sector. 01 level information on RB segments;
  • the base station adjusts the 01 level information on each RB segment of the adjacent sector to obtain 01 level information on each RB segment of the adjacent sector.
  • the base station calculates, according to the adjusted 01 level information on each RB segment of each adjacent sector, the comprehensive 01 level information of all neighboring sectors on the occupied RB segment of the user. More specifically, the step S113 includes:
  • the base station receives the 01 level information on each RB segment of the adjacent sector sent by the adjacent sector, and then further includes: The 01 level information on each RB segment of the adjacent sector is hierarchically divided.
  • S120 Acquire a satisfaction degree of the user's service quality.
  • the service quality satisfaction of the user is obtained mainly by using each parameter calculation method.
  • S130. Obtain a time ratio of the user occupying the RB segment in the statistical window length. In this embodiment, the time that the user occupies the RB segment in the statistical window length is obtained by using each parameter calculation method. ratio.
  • step S112 the base station adjusts the 01 level information on each RB segment of the adjacent sector, as shown in FIG.
  • each sector sends the 01 level information of the current sector to all adjacent sectors, and each sector also receives the other neighboring areas and sends a 01 level, and the neighbors are adjacent according to the current time of the user.
  • the interference condition of the sector is more accurately and effectively adjusted to the 01 level, and the user is not synchronized with the long power adjustment according to the user's service quality satisfaction and the time ratio of the user occupying the RB segment within the statistical window length, effectively solving the problem.
  • only the user history resource scheduling information and the indication of the 01 level information are used to perform performance adjustment caused by power adjustment, and the performance of power adjustment is improved.
  • each sector transmits 01 level information of the sector to all adjacent sectors, and the 01 level information indicates the neighboring sector pairs of the sector that are counted for a period of time.
  • the Interference on all RB segments of the sector therefore, sector k can receive all other K-1 adjacent sectors (sector 1, sector 2, ... sector kl, sector k+l , ... sector K)
  • the 01 level information on each RB segment sent, after processing the received 01 level information of all adjacent sectors, the user in the sector according to the current time resource occupancy probability and its own quality Satisfaction for power control.
  • the sector 1 is taken as an example below for specific description:
  • Step 1 Each sector measures the IoT (Interference over Thermal) size on each RB segment of the sector, divides the 01 level, and sends 01 level information to all adjacent sectors.
  • IoT Interference over Thermal
  • Step 3 Determine by * that the strongly interfered RB segment in sector k is ⁇ , in the interfered
  • the RB segment indication, the weakly affected RB segment indication, and the almost undisturbed RB segment finger are opened as follows:
  • N ⁇ N is the statistical window length, and the statistical window length is N transmission time intervals ( ⁇ , Transmission Time Interval), ⁇ 1 ';
  • the path loss value of the user UE to the adjacent sector k when the i th is is the transmit power value of the user UE when operating at the i th TTI, ", is the weighting factor.
  • the high interference indication sent by sector k to sector 1 is caused by the user UE in sector 1. If yes, the indication of the 01 level information on the RB segment occupied by the user remains unchanged; if not, the indication of the 01 level information on the corresponding RB segment of the received sector k is changed; If the indication of the 01 level information is "high” (high) or "medium” (middle), the indication of the 01 level information sent by the sector k on the RB segment is changed to null (empty), and the processing is as follows:
  • Step 5 Let the length of the RB segment occupied by the user UE be X, calculate the ratio of the different 01 strength indication values sent by the sector k in the RB segment, and the value of the medium 1 in the total length, p "> k , and p are as follows:
  • the indication of the interference strength of the RB segment occupied by the user to the sector k is determined.
  • the RB segment indicated by the strong interference is indicated by the RB segment indicated by the interference, the RB segment indicated by the weak interference, and the RB segment indicated by the almost uninterrupted.
  • the indication level with the largest ratio in a certain RB segment is greater than a certain threshold, the 01 level information of the RB segment is the level; otherwise, the proportion of each level is not much different, then the ratio is proportional.
  • the three highest levels are used to determine the indication level of the 01 level information of the RB segment occupied by the user UE.
  • the sector ratio in the interference is , the ratio of the sector with weak interference is , and the fan is almost uninterrupted null
  • the algorithm for calculating the interference size of adjacent sectors in the statistical window length of the RB segment occupied by the user according to the ratio of the interference strength in all sectors is: 01 indicates that the level information is The maximum interference level of all adjacent sectors received by the user on the RB segment.
  • Step 7 Calculate the quality satisfaction of the user UE.
  • Step 8 Calculate the time ratio in which the user UE occupies the RB segment in the history of the statistical window length.
  • N is the statistical window length
  • Less than the threshold indicates that the probability of the user occupying the RB segment within the statistical window length is small, and vice versa.
  • Step 9 According to the user attribute (ie, the user's quality of service satisfaction), the ratio of the current RB segment occupied by the user (ie, the time ratio of the user occupying the RB segment within the statistical window length) and the user phase
  • the interference size of the neighboring sector is 0/ m ' (that is, the user integrates the 01 level information of the adjacent sector on the RB segment in the statistical window length), and performs power adjustment on the user.
  • RBG medium ⁇ ⁇
  • step, step, 3 ⁇ 4 step, 3 ⁇ 4 ⁇ A are the power down step, the small step, the small step, and the big step.
  • the down step size can be configured to be larger than the up step, and the specific value is determined according to system performance.
  • An embodiment of the present invention further provides a base station.
  • the base station includes:
  • the level information acquiring unit 210 is configured to acquire, according to the neighboring sector integrated 01 level information received by the user in the current sector, the RB segment received at the current time;
  • the quality information obtaining unit 220 is configured to acquire the service quality satisfaction degree of the user, and the time ratio obtaining unit 230 is configured to acquire a time ratio of the user occupying the RB segment within the statistical window length;
  • the power adjustment unit 240 is configured to: according to the comprehensive 01 level information of the neighboring sector received by the user occupying the RB segment at the current time in the statistical window length, the user's quality of service satisfaction, and the user in the statistical window length
  • the time ratio of occupying the RB segment within the user is unsynchronized and long power adjustment.
  • the level information acquiring unit 210 includes:
  • a level information sending and receiving subunit 211 configured to acquire 01 level information on each RB segment of the sector, and send 01 level information on each RB segment of the sector to an adjacent sector, and the sector receiving phase 01 level information on each RB segment of the adjacent sector transmitted by the neighboring sector;
  • the level information adjusting subunit 212 adjusts the 01 level information on each RB segment of the adjacent sector to obtain 01 level information on each RB segment of the adjusted adjacent sector;
  • the unit 213 is configured to calculate comprehensive 01 level information of all adjacent sectors on the entire RB segment occupied by the user according to the 01 level information on each RB segment of each adjusted adjacent sector.
  • the level information sending and receiving subunit 211 is further configured to classify the 01 level information on each RB segment of all the received adjacent sectors.
  • the level information adjusting sub-unit 212 includes:
  • the resource location information obtaining module 2121 is configured to traverse all users of the sector, and obtain resource location information occupied by the user at the current time in the sector;
  • the interference estimation module 2122 is configured to calculate a interference estimation value of the target strong interference neighboring sector and each user to the strong interference neighboring sector at the current moment of each user; a level determination processing module 2123, configured to determine whether the interference estimation value exceeds a threshold, and if yes, maintaining a level of 01 transmitted by the neighboring sector at a resource location occupied by the user, if the value is lower than the The threshold reduces the level of 01 sent by the neighboring sector at the resource location occupied by the user.
  • the level information calculation sub-unit 213 is configured to calculate, according to the 01 level on each RB segment sent by each adjusted adjacent sector, all adjacent sectors are occupied by the user in the RB.
  • the integrated 01 level information on the segment is then used to calculate the comprehensive 01 level information on the entire RB segment occupied by the user according to the comprehensive 01 level of all adjacent sectors on the occupied RB segment of the user.
  • the base station provided by the foregoing embodiment adjusts the 01 level more accurately and effectively according to the interference situation of the current time of the user to the adjacent sector, and according to the satisfaction of the user's service quality and the user occupying the RB segment within the statistical window length.
  • the time ratio is used for the unsynchronized power adjustment of the user, which effectively solves the performance loss problem caused by the power adjustment by using only the user history resource scheduling information and the 01 level information indication in the prior art, and improves the power adjustment performance.

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
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  • Mobile Radio Communication Systems (AREA)

Abstract

本发明公开了一种资源管理方法,包括:基站获取本扇区内的用户在当前时刻占用无线承载RB段上收到的相邻扇区在统计窗长内的综合过载指示OI等级信息;获取用户的服务质量满意度;获取用户在所述统计窗长内占用所述RB段的时间比率;根据所述用户在当前时刻占用RB段上收到的相邻扇区在统计窗长内的综合OI等级信息、用户的服务质量满意度和用户在所述统计窗长内占用所述RB段的时间比率对用户进行不同步长的功率调整。本发明同时公开了一种使用上述方法的基站。本发明有效解决了现有技术中仅利用用户历史资源调度信息和OI等级信息的指示进行功率调整带来的性能损失问题,提高了功率调整的性能。

Description

资源管理方法及基站 技术领域
本发明涉及通信技术领域, 具体是资源管理方法及基站。 背景技术
长期演进( LTE, Long Term Evolution ) 系统的上行物理层釆用单载波 频分复用技术 ( SC-FDMA, Single-carrier Frequency Division Multiplexing ), 使得属于同一个小区的用户彼此之间的业务信号保持正交, 从而避免同一 个小区的用户相互干扰, 保证业务信号收发的准确性。 但是, 由于频率复 用因子为一, 即整个系统覆盖范围内的所有小区使用相同的频带为本小区 内的用户提供服务, 因此小区间的干扰依旧存在, 特别地, 对于边缘用户 会造成严重的小区间干扰。 频分复用技术无法消除相邻小区用户之间的干 扰, 因此尽可能的减小小区间的干扰成为 LTE上行系统研究的关键点。
干扰协调技术( ICIC , Inter-Cell Interference Coordination )就是为了解 决 LTE系统的小区间干扰问题而提出的。 它的核心是通过多个小区间资源 的合理分配, 使得相邻小区的边缘用户的资源尽量正交, 从而减小相邻小 区边缘用户的干扰。
与本发明有关的现有技术提供了一些利用干扰过载指示信息 ( 01 , Overload Indication )指示进行功率控制的方法, 具体可总结为: 基站以频 带为单位, 测量资源上受到邻基站内用户的干扰大小, 当干扰超过一定门 限时, 基站周期性或触发性地向邻基站发送 01等级信息, 指明干扰过载的 程度大小。 收到 01等级信息的基站, 将查询过去一段时间内的资源使用情 况, 对使用过干扰过载指示所对应频带的用户设备, 釆取降低发射功率或 更改资源调度的方法,达到降低系统干扰的目的。如文献: 3GPP , R1 -072971 , "Cluster based overload indication" , Nokia Siemens Networks中给出的方法。 发明人在研究现有技术的时候发现, 现有技术大多都是以牺牲系统内 少部分用户的服务质量来降低系统干扰, 提升系统整体的容量的。 即基于 网络端考虑, 对整网的性能进行提升。 而没有考虑用户的服务质量。 在实 际的网络服务中, 同一小区内不同业务的用户对服务质量要求不尽相同, 有的允许一定的干扰存在, 有的对干扰很敏感。
发明人在研究现有技术的时候还发现, 现有技术在利用 01等级信息进 行系统功率控制时, 仅根据历史资源占用情况调整用户的功率, 没有考虑 用户在当前时刻占用资源块上对周围的干扰水平, 也没有考虑根据系统的 资源利用率等调整 01等级, 导致 01等级判断不够准确, 功率调整性能下 降。 发明内容
本发明的主要目的是提供一种资源管理方法和基站, 解决了现有技术 中仅利用用户历史资源调度信息和 01等级信息进行功率调整带来的性能损 失问题。
本发明解决其技术问题所釆用的技术方案是:
一种资源管理方法, 其包括:
基站获取本扇区内的用户在当前时刻占用 RB段上收到的相邻扇区综 合 01等级信息;
获取用户的服务质量满意度;
获取用户在所述统计窗长内占用所述 RB段的时间比率;
根据所述用户在当前时刻占用 RB段上收到的相邻扇区综合 01等级信 息、用户的服务质量满意度和用户在所述统计窗长内占用所述 RB段的时间 比率对用户进行不同步长的功率调整。
优选地,所述基站获取本扇区内的用户在当前时刻占用 RB段上收到的 相邻扇区在统计窗长内的综合 01等级信息, 具体包括:
基站获取本扇区每个 RB段上 01等级信息, 将所述每个 RB段上 01 等级信息发送给相邻扇区, 以及通过所述本扇区接收相邻扇区发送的该相 邻扇区每个 RB段上的 01等级信息;
对所述该相邻扇区每个 RB段上的 01等级信息进行调整, 得到调整后 的该相邻扇区每个 RB段上的 01等级信息;
根据所述调整后的各相邻扇区每个 RB段上的 01等级信息计算所有相 邻扇区在用户占用的整个 RB段上的综合 01等级信息。
优选地, 所述接收相邻扇区发送的该相邻扇区每个 RB段上的 01等级 信息; 之后, 进一步包括: 并对所述接收到的所有相邻扇区每个 RB段上的 01等级信息进行等级划分。
优选地,所述对所述该相邻扇区每个 RB段上的 01等级信息进行调整, 具体包括:
遍历该本扇区的所有用户, 获取所述扇区中当前时刻用户占用的资源 位置信息;
计算每个用户当前时刻的目标强干扰相邻扇区和每个用户到所述强干 扰相邻扇区的干扰估计值;
判断所述干扰估计值是否超过门限, 若超过, 则保持所述相邻扇区发 送的在该用户占用的资源位置上的 01等级不变, 若低于所述门限, 则降低 该相邻扇区发送的在该用户占用的资源位置上的 01等级。
优选地, 所述根据所述调整后的各相邻扇区每个 RB段上的 01等级信 息计算所有相邻扇区在用户占用 RB段上的综合 01等级信息, 具体包括: 根据各调整后相邻扇区发送的每个 RB段上的 01等级计算所有相邻在 用户占用 RB段上的综合 01等级信息, 然后根据所述用户占用每个 RB段 上的 01等级计算用户占用的整个 RB段上的综合 01等级信息。 本发明还提供一种基站, 其包括:
等级信息获取单元,用于获取本扇区内的用户在当前时刻占用 RB段上 收到的相邻扇区在统计窗长内的综合 01等级信息;
质量信息获取单元, 用于获取用户的服务质量满意度;
时间比率获取单元,用于获取用户在所述统计窗长内占用所述 RB段的 时间比率;
功率调整单元,用于根据所述用户在当前时刻占用 RB段上收到的相邻 扇区在统计窗长内的综合 01等级信息、 用户的服务质量满意度和用户在所 述统计窗长内占用所述 RB段的时间比率对用户进行不同步长的功率调整。
优选地, 所述等级信息获取单元, 包括:
等级信息发送接收子单元,用于获取本扇区每个 RB段上 01等级信息, 将所述扇区每个 RB段上 01等级信息发送给相邻扇区, 以及通过所述扇区 接收相邻扇区发送的该相邻扇区每个 RB段上的 01等级信息;
等级信息调整子单元, 对所述该相邻扇区每个 RB段上的 01等级信息 进行调整, 得到调整后的该相邻扇区每个 RB段上的 01等级信息;
等级信息计算子单元,用于根据所述调整后的各相邻扇区每个 RB段上 的 01等级信息计算所有相邻扇区在用户占用的整个 RB段上的综合 01等 级信息。
优选地, 所述等级信息发送接收子单元, 还用于对所述接收到的所有 相邻扇区每个 RB段上的 01等级信息进行等级划分。
优选地, 所述等级信息调整子单元, 包括:
资源位置信息获取模块, 用于遍历该扇区的所有用户, 获取所述扇区 中当前时刻用户占用的资源位置信息;
干扰估计模块, 用于计算每个用户当前时刻的目标强干扰相邻扇区和 每个用户到所述强干扰相邻扇区的干扰估计值; 等级判断处理模块, 用于判断所述干扰估计值是否超过门限, 若超过, 则保持所述相邻扇区发送的在该用户占用的资源位置上的 01等级不变, 若 低于所述门限, 则降低该相邻扇区发送的在该用户占用的资源位置上的 01 等级。
优选地, 所述等级信息计算子单元, 用于根据各调整后相邻扇区发送 的每个 RB段上的 01等级计算所有相邻扇区在用户占用 RB段上的综合 01 等级信息, 然后根据所述所有相邻扇区在用户占用 RB段上的综合 01等级 计算用户占用的整个 RB段上的综合 01等级信息。
实施本发明的技术方案, 具有以下有益效果: 本发明提供的资源管理 方法和基站, 根据用户当前时刻对相邻扇区的干扰大小更准确有效的调整 01等级, 同时根据用户时刻占用当前资源的时间比率和用户的服务质量满 意度调整用户发射功率, 有效解决现有技术中仅利用用户历史资源调度信 息和 01等级信息的指示进行功率调整带来的性能损失问题, 提高了功率调 整的性能。 附图说明
图 1为本发明实施例提供的方法流程图;
图 2为图 1的步骤 S110的具体流程图;
图 3为图 2的步骤 S112的具体流程图;
图 4为本发明实施例提供的基站的结构示意图;
图 5为图 4的等级信息获取单元的结构示意图;
图 6为图 5的等级信息调整子单元的结构示意图。 具体实施方式
为了使本发明的目的、 技术方案及优点更加清楚明白, 以下结合附图 及实施例, 对本发明进行进一步详细说明。 应当理解, 此处所描述的具体 实施例仅仅用以解释本发明, 并不用于限定本发明。
本发明实施例提供一种资源管理方法, 如图 1所示, 该方法包括步骤:
5110、 基站获取本扇区内的用户在当前时刻占用无线承载( RB , Radio Bearer )段上收到的相邻扇区在统计窗长内的综合 01等级信息;
网络中有 K个扇区,每个扇区发送本扇区的 01等级信息给所有的相邻 扇区, 同时接收其他相邻扇区基站发送的 01等级信息。 在此实施例中, 选 取一个扇区作为参照, 进行该方法的步骤, 但是该方法的步骤适用于网络 中的每个扇区。
在本实施例中, 具体的, 如图 2所示, 该步骤 S110包括步骤:
5111、基站获取本扇区每个 RB段上 01等级信息,将所述扇区每个 RB 段上 01等级信息发送给相邻扇区, 以及接收相邻扇区发送的该相邻扇区每 个 RB段上的 01等级信息;
5112、 基站对所述该相邻扇区每个 RB段上的 01等级信息进行调整, 得到调整后的该相邻扇区每个 RB段上的 01等级信息;
5113、 基站根据所述调整后的各相邻扇区每个 RB段上的 01等级信息 计算所有相邻扇区在用户占用 RB段上的综合 01等级信息。 更为具体的, 该步骤 S113包括:
根据各调整后相邻扇区发送的每个 RB段上的 01等级计算所有相邻扇 区在用户占用 RB段上的综合 01等级信息,然后根据所述用户占用每个 RB 段上的 01等级计算用户占用的整个 RB段上的综合 01等级信息。
另外, 在其他的实施例中, 所述步骤 Sl l l、 基站接收相邻扇区发送的 该相邻扇区每个 RB段上的 01等级信息, 之后, 进一步包括: 对所述接收 到的所有相邻扇区每个 RB段上的 01等级信息进行等级划分。
S120、 获取用户的服务质量满意度; 在本实施例中, 主要通过各个参 数计算的方法获取该用户的服务质量满意度。 S130、获取用户在所述统计窗长内占用所述 RB段的时间比率;在本实 施例中, 主要通过各个参数计算的方法获取该用户在所述统计窗长内占用 所述 RB段的时间比率。
S140、根据所述用户在当前时刻占用 RB段上收到的相邻扇区在统计窗 长内的综合 01等级信息、 用户的服务质量满意度和用户在所述统计窗长内 占用所述 RB段的时间比率对用户进行不同步长的功率调整。
在上述实施例中, 更为具体地, 所述步骤 S112、 基站对所述该相邻扇 区每个 RB段上的 01等级信息进行调整, 如图 3所示, 具体包括:
51121、 遍历该本扇区的所有用户, 获取所述扇区中当前时刻用户占用 的资源位置信息;
51122、 计算每个用户当前时刻的目标强干扰相邻扇区和每个用户到所 述强干扰相邻扇区的干扰估计值;
51123、 判断所述干扰估计值是否超过门限, 若超过, 则保持所述相邻 扇区发送的在该用户占用的资源位置上的 01等级不变, 若低于所述门限, 则降低该相邻扇区发送的在该用户占用的资源位置上的 01等级。
上述实施例提供的资源管理方法, 每个扇区发送本扇区的 01等级信息 给所有的相邻扇区, 每个扇区也收到其他邻区发送 01等级, 根据用户当前 时刻对相邻扇区的干扰情况更准确有效的调整 01等级, 同时根据用户的服 务质量满意度和用户在所述统计窗长内占用所述 RB段的时间比率对用户 进行不同步长的功率调整, 有效解决现有技术中仅利用用户历史资源调度 信息和 01等级信息的指示进行功率调整带来的性能损失问题, 提高了功率 调整的性能。
下面提供更为具体的实施例, 对本发明提供的方法进行更详细的描述。 该网络中有 K个扇区,每个扇区发送本扇区的 01等级信息给所有的相 邻扇区, 该 01等级信息指示了一段时间内统计的该扇区的各相邻扇区对该 扇区的所有 RB段上的干扰情况, 因此, 扇区 k可以接收到其他所有 K-1 个相邻扇区(分别为扇区 1、 扇区 2、 …扇区 k-l、 扇区 k+l、 …扇区 K )发 送的每个 RB段上的 01等级信息, 对接收到的所有相邻扇区的 01等级信 息进行处理后, 扇区内的用户根据当前时刻资源占用概率和自身的质量满 意度进行功率控制。 下面以扇区 1为例, 进行具体说明:
步骤一: 每个扇区测量本扇区每个 RB段上的 IoT ( Interference over Thermal ) 大小, 划分 01等级, 发送 01等级信息给所有相邻扇区。
步骤二: 扇区 1收到扇区 k ( k=2, 3 , ...K )发送的 01等级信息6 为一个数列,数列中的元素 01' 指示了扇区 k的第 i个 RB段上受相邻扇 区干扰的强弱程度。
步骤三: 由 *确定扇区 k中受干扰强的 RB段指示 ^ 、 受干扰中的
D n
RB段指示 、 受干扰弱的 RB段指示 和几乎不受干扰的 RB段指 开, , 其方法如下: dium
Figure imgf000010_0001
步骤四: 遍历扇区 1 中的用户, 获得扇区 1 中的用户 UEu ( u=l , 2, ...UeNum ) 占用的 RB段位置, 其中 UeNum为扇区 1中调度到得用户 总数。
计算扇区 1中的用户 UE到扇区 k的等效干扰大小 N ^ , 其中 N为统计窗长, 统计窗长为 N个传输 时间间隔 (ΤΉ, Transmission Time Interval ), ρ1' ;
为第 i个 ΤΤΙ时用户 UE到相邻扇区 k的路损值, 为用户 UE在第 i 个 TTI工作时的发射功率值, "、 为权重因子。
根据等效干扰 ^的大小,判断扇区 k发送给扇区 1的高干扰指示是否 是扇区 1内的用户 UE造成的。 若是, 则该用户占用的 RB段上的 01等级 信息的指示保持不变; 若不是, 则更改收到的扇区 k相应 RB段上的 01等 级信息的指示; 此时若某 RB段上的 01等级信息的指示为 "high" (高)或 "medium" (中 ), 则将此 RB段上扇区 k发送的 01等级信息的指示更改为 null (空 ), 处理如下:
Figure imgf000011_0001
fQ j ―
RB;
保持, else
步骤五: 设用户 UE占用的 RB段长度为 X, 计算此 RB段中的扇区 k 发送的不同 01强度指示值 、 、 和 中为 1的值在总长 度中占用的比例 、 p">k 、 和 p 其方法如下:
1 x
Figure imgf000011_0002
根据不同强度的 01等级信息占用的比率, 确定该用户占用的 RB段整 体对扇区 k的干扰强弱指示。其中受干扰强的 RB段指示为 受干扰 中的 RB段指示为 、 受干扰弱的 RB段指示为 、 几乎不受干 扰的 RB段指示为 。
在本实施例中,若某一 RB段内比例最大的指示等级大于某一阔值, 则 此 RB段的 01等级信息即为此等级; 否则, 各等级所占比例相差不大, 则 按照比例最大的三个等级(分别为 y , z , 其中 z可能为空) 来确定本 用户 UE占用的 RB段的 01等级信息的指示等级。几种情况分别简述如下: ( 1 )¾ ihiSh' medium) , 若 ζ为空, 即此 RB段只有 、 medium两 个等级, 则此 RB段 01等级信息的指示为 (选所占比例较大者); 若 z不 为空, 即 z为 fow或 // , 则此 RB段 01等级信息的指示为 medium。
( 2 )、 X,yG imedium' low} , 若 z为空, 即此 RB段只有 medium、 fow两个 等级, 则此 RB段 01等级信息的指示为 (选所占比例较大者); 若 z不为 空, 务 z为 high , 则此 RB段 01等级信息的指示为^ 画; 若 ζ为 则 此 RB段 01等级信息的指示为 (低)。
( 3 )、 , //} , 若2为空, 即此 RB段只有 fow、 層 //两个等级, 则此 RB段 01等级信息的指示为 ^ (选所占比例较大者); 若 z不为空, 即 z 为 high或 medium , 则此 RB段 01等级信息的指示为 。
( 4 )、
Figure imgf000012_0001
则此!^段01等级信息的指示为 画。 ( 5 )、 x' y≡{hi≠' , 若 z为空或 x、 所占比例不等, 则选择靠近最 大比例的等级, 即: 若 ^ hiSh , 此 RB段 01等级信息的指示为^^画; 若 X为 // , 此 RB段 01等级信息的指示为 fow。 若 z不为空且 x、 所占比例 相等, 则此 RB段 01等级信息的指示为 z。 ( 6 )、 x, y {medium, null} ^ 则此 RB0I等级信息的指示为 /ow。 步骤六: 计算扇区 1的所有相邻扇区 k ( k=2, 3...K )对用户 UE所占 RB段上的不同干扰指示所占的比率, 其中受干扰强的扇区比率为^ " 受
, ^ medium ^ low
干扰中的扇区比率为 、 受干扰弱的扇区比率为 、 几乎不受干扰的扇 null
区比率为?" , 其方法如下所示:
medium 11 κ ^ - - ^medium
u -jy n,k '
k=2 " 4έ腐:" 根据所有扇区中受干扰强弱的比率计算该用户所占 RB段上统计窗长 内对相邻扇区的干扰大小情况 算法是: 01等级信息的指示为在该用 户所占 RB段上接收到得所有相邻扇区的最大干扰等级。
null
Figure imgf000013_0001
), else 步骤七: 计算用户 UE的质量满意度。
步骤八:计算用户 UE在统计窗长内历史占用该段 RB段的时间比率 其中,
Figure imgf000013_0002
, N为统计窗长, ^ "为用户历史占用 RB段位置信息, 若用户 UE占用该 RB段则 ^"^, 否则为 Ηπ"=0。 小于门限则表示用户 在统计窗长内占用该段 RB段的概率很小, 反之亦然。
步骤九: 根据用户属性(即: 用户的服务质量满意度)、 用户当前时刻 占用该 RB段的比率(即: 用户在所述统计窗长内占用所述 RB段的时间比 率)和用户对相邻扇区的干扰大小 0/m' (即: 用户在统计窗长内占用 RB 段上对相邻扇区综合 01等级信息), 对用户进行功率调整。 具体为:
(1)、 RBGMg" =
u 1 , 且用户质量满意, 则
Figure imgf000014_0001
RBQhign = i
(2)、右 " ,且用户质量不满意, "小于门限,则 ρ"¾ = u x +step3
RBQhign = 1 Tx _ ρΤχ
(3)、 右 " , 且用户质量不满意, "大于门限, 则 u *
RBGmedium =
(4)、 且用户质量满意, 则^ = Ί^2 ;
RBGmedium = χ ρΤχ
(5)、 ,且用户质量不满意, "小于门限,则 ρχ = u + step A
RBGmedium = ― pTx
(6)、 且用户质量不满意, ^大于门限, 则 u
(7)、 ^tRBG'0W =l
且用户质量满意, 则 ρ"¾=ρ"¾
(8)、若 RBG' = 1
且用户质量不满意, 小于门限,则 = u + step4
(9)、 + step3
Figure imgf000014_0002
(10)、 若 " = 小于门限, 则
(12)、 若 '= 大于门限, 则^ =^+ 3;
其中, step、、 step, ¾ step, ¾ ^A分别为功率的下调大步长、 下调小步长、 上调小步长、 上调大步长。 为了使功率的调整遵循快降慢升的原则, 下调 步长可配置成比上调步长较大, 具体数值根据系统性能确定。
本发明实施例还提供一种基站, 如图 4所示, 该基站包括:
等级信息获取单元 210, 用于获取本扇区内的用户在当前时刻占用 RB 段上收到的相邻扇区综合 01等级信息; 质量信息获取单元 220, 用于获取用户的服务质量满意度; 时间比率获取单元 230, 用于获取用户在所述统计窗长内占用所述 RB 段的时间比率;
功率调整单元 240, 用于根据所述用户在当前时刻占用 RB段上收到的 相邻扇区在统计窗长内的综合 01等级信息、 用户的服务质量满意度和用户 在所述统计窗长内占用所述 RB段的时间比率对用户进行不同步长的功率 调整。
在上述实施例中,更为具体的,如图 5所示,该等级信息获取单元 210, 包括:
等级信息发送接收子单元 211 , 用于获取本扇区每个 RB段上 01等级 信息, 将所述扇区每个 RB段上 01等级信息发送给相邻扇区, 以及所述扇 区接收相邻扇区发送的该相邻扇区每个 RB段上的 01等级信息;
等级信息调整子单元 212, 对所述该相邻扇区每个 RB段上的 01等级 信息进行调整, 得到调整后的该相邻扇区每个 RB段上的 01等级信息; 等级信息计算子单元 213 , 用于根据所述调整后的各相邻扇区每个 RB 段上的 01等级信息计算所有相邻扇区在用户占用的整个 RB段上的综合 01 等级信息。
在上述实施例中, 所述等级信息发送接收子单元 211 , 还用于对所述接 收到的所有相邻扇区每个 RB段上的 01等级信息进行等级划分。
在上述实施例中, 更为具体的, 如图 6所示, 所述等级信息调整子单 元 212, 包括:
资源位置信息获取模块 2121 , 用于遍历该扇区的所有用户, 获取所述 扇区中当前时刻用户占用的资源位置信息;
干扰估计模块 2122, 用于计算每个用户当前时刻的目标强干扰相邻扇 区和每个用户到所述强干扰相邻扇区的干扰估计值; 等级判断处理模块 2123 , 用于判断所述干扰估计值是否超过门限, 若 超过, 则保持所述相邻扇区发送的在该用户占用的资源位置上的 01等级不 变, 若低于所述门限, 则降低该相邻扇区发送的在该用户占用的资源位置 上的 01等级。
在上述实施例中, 更为具体的, 所述等级信息计算子单元 213 , 用于根 据各调整后相邻扇区发送的每个 RB段上的 01等级计算所有相邻扇区在用 户占用 RB段上的综合 01等级信息, 然后根据所述所有相邻扇区在用户占 用 RB段上的综合 01等级计算用户占用的整个 RB段上的综合 01等级信息。
上述实施例提供的基站, 根据用户当前时刻对相邻扇区的干扰情况更 准确有效的调整 01等级, 同时根据用户的服务质量满意度和用户在所述统 计窗长内占用所述 RB段的时间比率对用户进行不同步长的功率调整,, 有 效解决现有技术中仅利用用户历史资源调度信息和 01等级信息的指示进行 功率调整带来的性能损失问题, 提高了功率调整的性能。
以上仅为本发明的较佳实施例而已, 并不用以限制本发明, 凡在本发 明的精神和原则之内所作的任何修改、 等同替换和改进等, 均应包含在本 发明的保护范围之内。

Claims

权利要求书
1、 一种资源管理方法, 其特征在于, 所述方法包括:
基站获取本扇区内的用户在当前时刻占用无线承载 RB段上收到的相 邻扇区在统计窗长内的综合过载指示 01等级信息;
获取用户的服务质量满意度;
获取用户在所述统计窗长内占用所述 RB段的时间比率;
根据所述用户在当前时刻占用 RB段上收到的相邻扇区在统计窗长内 的综合 01等级信息、 用户的服务质量满意度和用户在所述统计窗长内占用
2、 根据权利要求 1所述方法, 其特征在于, 所述基站获取本扇区内的 用户在当前时刻占用 RB段上收到的相邻扇区在统计窗长内的综合 01等级 信息, 具体包括:
基站通过获取本扇区每个 RB段上 01等级信息,将所述本扇区每个 RB 段上 01等级信息发送给相邻扇区, 以及通过所述本扇区接收相邻扇区发送 的该相邻扇区每个 RB段上的 01等级信息;
对所述该相邻扇区每个 RB段上的 01等级信息进行调整, 得到调整后 的该相邻扇区每个 RB段上的 01等级信息;
根据所述调整后的各相邻扇区每个 RB段上的 01等级信息计算所有相 邻扇区在用户占用的整个 RB段上的综合 01等级信息。
3、 根据权利要求 2所述方法, 其特征在于, 所述接收相邻扇区发送的 该相邻扇区每个 RB段上的 01等级信息; 之后, 所述方法进一步包括: 对所述接收到的所有相邻扇区每个 RB段上的 01等级信息进行等级划 分。
4、 根据权利要求 2所述方法, 其特征在于, 所述对所述该相邻扇区每 个 RB段上的 01等级信息进行调整, 具体包括: 遍历该扇区的所有用户, 获取所述本扇区中当前时刻用户占用的资源 位置信息;
计算每个用户当前时刻的目标强干扰相邻扇区和每个用户到所述强干 扰相邻扇区的干扰估计值;
判断所述干扰估计值是否超过门限, 若超过, 则保持所述相邻扇区发 送的在该用户占用的资源位置上的 01等级不变, 若低于所述门限, 则降低 该相邻扇区发送的在该用户占用的资源位置上的 01等级。
5、 根据权利要求 2所述方法, 其特征在于, 所述根据所述调整后的各 相邻扇区每个 RB段上的 01等级信息计算所有相邻扇区在用户占用的整个 RB段上的综合 01等级信息, 具体包括:
根据各调整后相邻扇区发送的每个 RB段上的 01等级计算用户占用 RB 段上的所有相邻扇区的综合 01等级信息, 然后根据所述用户占用每个 RB 段上的所有相邻扇区的综合 01等级计算用户占用的整个 RB段上的综合 01 等级。
6、 一种基站, 其特征在于, 包括:
等级信息获取单元,用于获取本扇区内的用户在当前时刻占用 RB段上 收到的相邻扇区在统计窗长内的综合 01等级信息;
质量信息获取单元, 用于获取用户的服务质量满意度;
时间比率获取单元,用于获取用户在所述统计窗长内占用所述 RB段的 时间比率;
功率调整单元,用于根据所述用户在当前时刻占用 RB段上收到的相邻 扇区在统计窗长内的综合 01等级信息、 用户的服务质量满意度和用户在所 述统计窗长内占用所述 RB段的时间比率对用户进行不同步长的功率调整。
7、 根据权利要求 1所述基站, 其特征在于, 所述等级信息获取单元, 包括: 等级信息发送接收子单元,用于获取本扇区每个 RB段上 01等级信息, 将所述本扇区每个 RB段上 01等级信息发送给相邻扇区, 以及通过所述本 扇区接收相邻扇区发送的该相邻扇区每个 RB段上的 01等级信息;
等级信息调整子单元, 对所述该相邻扇区每个 RB段上的 01等级信息 进行调整, 得到调整后的该相邻扇区每个 RB段上的 01等级信息;
等级信息计算子单元,用于根据所述调整后的各相邻扇区每个 RB段上 的 01等级信息计算所有相邻扇区在用户占用的整个 RB段上的综合 01等 级信息。
8、 根据权利要求 7所述基站, 其特征在于, 所述等级信息发送接收子 单元, 还用于对所述接收到的所有相邻扇区每个 RB段上的 01等级信息进 行等级划分。
9、根据权利要求 7所述基站,其特征在于, 所述等级信息调整子单元, 包括:
资源位置信息获取模块, 用于遍历该本扇区的所有用户, 获取所述本 扇区中当前时刻用户占用的资源位置信息;
干扰估计模块, 用于计算每个用户当前时刻的目标强干扰相邻扇区和 每个用户到所述强干扰相邻扇区的干扰估计值;
等级判断处理模块, 用于判断所述干扰估计值是否超过门限, 若超过, 则保持所述相邻扇区发送的在该用户占用的资源位置上的 01等级不变, 若 低于所述门限, 则降低该相邻扇区发送的在该用户占用的资源位置上的 01 等级。
10、 根据权利要求 7所述基站, 其特征在于, 所述等级信息计算子单 元, 用于根据各调整后相邻扇区发送的每个 RB段上的 01等级计算所有相 邻扇区在用户占用 RB段上的综合 01等级信息, 然后根据所述所有相邻扇 区在用户占用 RB段上的综合 01等级计算用户占用的整个 RB段上的综合 等级信息。
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