WO2013056624A1 - 多频网络中功率降额的方法和装置 - Google Patents

多频网络中功率降额的方法和装置 Download PDF

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Publication number
WO2013056624A1
WO2013056624A1 PCT/CN2012/082664 CN2012082664W WO2013056624A1 WO 2013056624 A1 WO2013056624 A1 WO 2013056624A1 CN 2012082664 W CN2012082664 W CN 2012082664W WO 2013056624 A1 WO2013056624 A1 WO 2013056624A1
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Prior art keywords
station cell
capacity station
cell
power
transmit power
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PCT/CN2012/082664
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English (en)
French (fr)
Inventor
张舜卿
杭海存
张伟
吴晔
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华为技术有限公司
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Publication of WO2013056624A1 publication Critical patent/WO2013056624A1/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
    • H04W52/06TPC algorithms
    • H04W52/14Separate analysis of uplink or downlink
    • H04W52/143Downlink 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
    • H04W52/30TPC 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
    • 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

Definitions

  • the invention relates to the field of communication technology.
  • it relates to a method and apparatus for power derating in a multi-frequency network. Background technique
  • Multi-frequency network technology refers to the use of different radio frequency bands in the same mobile network, and allows different frequency bands to perform service sharing reasonably.
  • the main application of multi-frequency network is
  • Dual-frequency networks are one of the multi-frequency network technologies and one of the most widely used technologies in multi-frequency network technology.
  • Fig. 1 shows a schematic diagram of two inter-frequency coverage cells F1, F2 in a dual-frequency network, wherein for the sake of explanation, two identical coverage cells are shown separately.
  • the user can perform cell selection, reselection, and handover between the two cells F1 and F2.
  • the dual-band network based on two frequency bands can be planned independently, with different spectrum ranges, different wireless propagation rules, different coverage areas, etc., and in the networking mode, there is no need to change the original network.
  • device resources of different cells can be shared, and multiple inter-frequency cells can be gradually introduced according to capacity requirements and traffic distribution.
  • UMTS Universal Mobile Telecommunications System
  • the dual-frequency network composed of UMTS R99 and HSDPA systems is a typical dual-frequency network; multi-frequency networks account for 90% of UMTS networks, the most important of which is dual-band.
  • the network accounts for 40% to 50%, followed by tri-band networks and quad-band networks.
  • UMTS R99 has a center frequency of 2100MHz, which is mainly used as a coverage station to meet coverage requirements.
  • the HSDPA system is mainly used as a capacity station. Its center frequency can be 2100MHz or 900MHz, which is mainly used to improve system capacity.
  • FIG. 2 shows the traffic distribution of a base station in a typical scenario of an existing network. It can be seen that about 50% of the base station traffic is below 5%, that is, the traffic volume is extremely low, and nearly 40% of the site traffic is below 45%, that is, the traffic volume is medium. and also That is to say, the load of most base stations is not very embarrassing.
  • the smart wave breaking technology in the prior art can be used to save energy.
  • the traffic volume is medium, there is no relevant energy-saving mechanism at present, so that the base station always maintains a relatively low transmission power and consumes a large amount of energy.
  • a method and apparatus for power derating in a multi-frequency network is provided in an embodiment of the present invention.
  • a method for power derating in a multi-frequency network comprising: acquiring a first negative 3 ⁇ 4* of a coverage station cell and a second negative 3 ⁇ 4* of a capacity station cell, and based on the first negative sum The second negative 3 ⁇ 4* determines a transmission power variation requirement of the capacity station cell according to a predetermined determination criterion; processing the user service by using a service processing manner according to the change of the transmission power of the capacity station cell; and transmitting according to the leg capacity station cell
  • the power change requires processing of the transmit power of the capacity station cell.
  • a power derating apparatus comprising: a transmit power change determining unit, configured to acquire a first load quantity of a coverage station cell and a second load quantity of a capacity station cell, and based on the first load The quantity and the second negative determine the transmission power change requirement of the capacity station cell according to the predetermined determination criterion; the user service processing unit is configured to process the user service by using the service processing manner according to the change of the transmission power of the capacity station cell; And a transmit power processing unit, configured to process, according to a transmit power variation requirement of the capacity station cell, a transmit power of the capacity station cell.
  • the transmission power of the capacity station cell is reduced according to the service, thereby significantly reducing the actual power consumption of the base station.
  • the difference between the user and the service is also processed, so the system performance and the user experience are less affected.
  • Figure 1 shows a schematic diagram of two inter-frequency and coverage cells in a dual-frequency network.
  • Figure 2 shows the traffic distribution of the base station in a typical scenario of the existing network.
  • FIG. 3 shows a flow chart of a method of performing power derating in accordance with one embodiment of the present invention.
  • FIG. 4 is a flow chart showing the determination of a transmit power variation requirement for a capacity station cell in accordance with an embodiment of the present invention.
  • Figure 5 illustrates a flow diagram for processing a user and/or service in accordance with an embodiment of the present invention.
  • FIG. 6 shows the case where the power amplifier voltage regulation technique is used and the power amplifier voltage regulation technique is not used.
  • FIG. 7 shows a flow chart of a method of performing power derating in accordance with another embodiment of the present invention.
  • FIG. 8 shows a schematic structural diagram of a power derating device according to an embodiment of the present invention.
  • FIG. 9 shows a schematic structural diagram of a power derating device according to another embodiment of the present invention.
  • the coverage station cell is mainly used to ensure the coverage area, and the capacity station area is used to improve the system capacity.
  • both the coverage station cell and the capacity station cell are transmitted according to the maximum power to ensure the service in each cell; when the service load decreases, the transmission power of the coverage station cell is kept unchanged. At the same time, the transmission power of the capacity station cell can be reduced to save energy.
  • CELL1 is used to indicate a coverage station cell
  • CELL2 is a capacity station cell, unless otherwise stated.
  • FIG. 3 shows a flow chart of a method of power derating in a dual frequency network, in accordance with one embodiment of the present invention. It can be seen that the method includes the following steps.
  • Step 310 Obtain a second negative 3 ⁇ 4* of the first negative and the capacity station cell of the coverage station cell, and determine, according to the predetermined determination criterion, a change of the transmit power of the capacity station cell CELL2 based on the first load quantity and the second load quantity.
  • the term load amount indicates resource occupancy in a cell.
  • the load can be reflected by different indicators according to actual needs. For example, it can be reflected by the indicators of traffic volume and number of users. Therefore, the judgment criterion can be selected accordingly to determine the transmission power variation requirement of the capacity station cell CELL2.
  • the transmit power variation requirements may be: Lifting the transmit power of CELL2 and the transmit power value that needs to be extracted, reducing the transmit power of CELL2 and allowing the reduced transmit power value, and keeping the transmit power of CELL2 unchanged. Regarding how to specifically determine the transmission power variation requirement, it will be specifically described below in conjunction with FIG.
  • Step 320 The user and/or the service are processed by using a service processing manner according to the change of the transmit power of the capacity station cell CELL2.
  • the processing manner used may be determined according to actual needs, including but not limited to: processing for priority services, processing for low priority services, and processing for dual cell (DC) users, the purpose of which is to minimize Impact on system performance and user experience.
  • processing for priority services processing for low priority services
  • DC dual cell
  • Step 330 Perform a transmit power of the capacity station cell according to a change requirement of a transmit power of the capacity station cell CELL2. deal with.
  • the above power derating method can be performed periodically, for example, a timer can be provided in the base station to periodically trigger the above method.
  • a ⁇ 3 ⁇ 4 power derating method can be performed every 100ms.
  • the traffic QoS based load amount is used in step 310 to determine the transmit power change requirement of CELL2, it is assumed that the user in the capacity station cell CELL2 is processed first based on the service QoS before step 310. Specifically, it is handled according to the user's variability and the priority of the business. For ⁇ Priority Users and Dedicated Channel (DCH) users, their services are still guaranteed, that is, they remain unchanged, while for low-priority services, the rate is reduced and only the basic ratio (GBR) is guaranteed, and the real-time rate is not guaranteed. .
  • DCH Dedicated Channel
  • the transmission power of the capacity station cell is adjusted according to the load of the cell, thereby solving the problem of energy saving for the medium service in the prior art, and significantly reducing the actual power consumption of the base station.
  • the difference between the user and the service is also processed, so the system performance and the user experience are less affected.
  • determining the transmission power variation requirement of the CELL2 of the capacity station cell according to the cell load quantity specifically includes:
  • Step 410 Acquire a first load quantity L1 of the coverage station cell CELL1, and compare the first load quantity L1 with the first threshold value Thl.
  • the load amount can be reflected by different indicators according to actual needs, for example, by the traffic volume and the number of users, so that the first threshold value Thl used can be selected accordingly.
  • the traffic volume is used to reflect the load, it is assumed that the total amount of traffic that CELL1 can carry is A, and the Thl is set to A*80%.
  • the load is reflected by the number of users, it is assumed that the number of users that CELL1 can accommodate is B, and Thl is set to B*80%.
  • the first threshold value Thl is related to the transmission power P1 of the coverage station cell CELL1. For example, when the transmission power P1 of the coverage station cell is larger, the total amount of traffic A that CELL1 can carry is also larger, or the number of users B that can be accommodated is larger, and the like.
  • Step 420 When the first load quantity L1 is greater than the first threshold value Th1, determine that the capacity station cell CELL2 needs to raise the transmission power, and accordingly determine the transmit power value that needs to be extracted.
  • L1>Thl it indicates that the negative of the coverage station cell CELL1 is too large, so it is necessary to improve the transmission power of the capacity station cell CELL2 in order to meet the capacity requirement of the service.
  • the transmission power of the capacity station cell CELL2 is boosted to the required power value.
  • the transmission power of the capacity station cell CELL2 can be divided into N levels (N is a natural number determined according to needs), and according to hardware limitations such as power amplifier, it is assumed that the maximum transmission power of the capacity station cell CELL2 is P, and then the power is classified and transmitted.
  • the power difference between each level can be determined as needed, and is not necessarily required identical.
  • the transmission power is upgraded according to the level.
  • Step 430 When the first load amount L1 is lower than the first threshold value Thl, acquire the second load amount L2 of the capacity station cell CELL2, and compare the second load amount L2 with the second threshold value Th2. Since when the L1 is below Thl, it indicates that the CELL1 of the coverage station is not large, it is further determined whether the transmission power of the CELL2 of the capacity station needs to be adjusted.
  • the second threshold value Th2 used may be selected correspondingly according to the index reflecting the negative. For example, if the traffic volume is used to reflect the load, it is assumed that the total amount of traffic that CELL2 can carry is B, and Th2 is set to B*20%.
  • Th2 is set to B*20%.
  • the 20% here is also given as an example, and those skilled in the art can specify according to the actual situation.
  • the second threshold Th2 is also related to the transmit power P2 of the capacity station cell CELL2.
  • Step 440 When the second load amount L2 is less than the second threshold value Th2, it is determined that the capacity station cell CELL2 allows to reduce the transmission power, and accordingly determines the allowed transmission power value.
  • L2 ⁇ Th2 it indicates that the capacity of the capacity station cell CELL2 is small, so the transmission power of CELL2 can be reduced to save power consumption.
  • the third threshold value Th3 is a predetermined value.
  • the second load is less than the third threshold Th3, it indicates that the traffic of the capacity station cell is small, and the carrier can be turned off.
  • the closed fiber wave also turns off the cell, including turning off pilot information, broadcast information, and the like in the common channel of the cell.
  • the carrier turn-off technique is prior art and will not be described in detail herein. If the second load amount L2 is above the third threshold value Th3, the bank carrier is not turned off. In order to avoid the influence on the user as much as possible, it is determined that the method of stepwise reduction is adopted when the transmission power is lowered.
  • the level division that has been set in step 420 may be employed, or a different level division may be employed.
  • Step 450 When the second load quantity L2 is greater than the second threshold value Th2, it indicates that the coverage station cell CELL1 and the capacity station cell CELL2 are in an appropriate working state, that is, in a stable working state, so that the capacity station cell CELL2 is determined to remain. The transmit power is unchanged.
  • the load based on the coverage station cell and the capacity station cell is determined by using corresponding threshold values, so that the working state of the cell can be accurately classified, so as to further control the capacity station cell. Transmit power.
  • FIG. 5 is a flow chart showing the processing of users and/or services by means of service processing in accordance with the change in transmit power of the capacity station cell CELL2, in accordance with an embodiment of the present invention. As seen in Figure 5, processing users and/or services includes the following steps.
  • Step 510 Acquire a transmission power variation requirement of the CELL2 of the capacity station cell.
  • the above-described transmission power variation requirement can be obtained from the method described in connection with FIG.
  • Step 520 When it is determined that the capacity station cell CELL2 allows to reduce the transmission power, and accordingly determines the allowed transmission power value, modify the cell handover threshold value of the peripheral user in the capacity station cell according to the allowed reduced transmission power value.
  • the user in the connected state of the peripheral user is switched to the cell of the coverage station, and after the user is in the idle state, the power is reduced, and the cell is automatically reselected to the coverage station cell.
  • the meaning of the peripheral user is that the user is originally in the coverage of the capacity station cell CELL2, but is not in the coverage area after reducing the transmission power of the capacity station cell. Therefore, the peripheral user can be determined and the cell handover threshold can be modified based on the allowed transmit power value.
  • the user's handoff threshold can be modified by the Radio Network Controller (RNC).
  • RNC Radio Network Controller
  • the coverage of CELL2 decreases accordingly.
  • Peripheral users who are within the coverage of CELL2 may not be able to continue to attach to CELL2. Therefore, by modifying the switching thresholds of these peripheral users, these users can be considered The signal strength of CELL2 cannot meet the communication requirements, and thus switches to the coverage station cell CELL1 in advance, thereby avoiding the subsequent adjustment of the transmission power of CELL2 to affect the peripheral users.
  • Step 530 classify other users except the peripheral users in the capacity station cell CELL2, and perform corresponding processing according to the user category.
  • the ⁇ priority service can be switched to the coverage station cell CELL1 to ensure the service of the priority service; the low priority service can be reduced in rate and the basic ratio can be guaranteed, thereby reducing the transmission of the capacity station cell CELL2.
  • the impact on the capacity of the capacity station cell CELL2 is reduced as much as possible; and the dual cell (DC) user can select the coverage station cell CELL1 as its primary cell, since the DC user simultaneously uses two cells, by using the coverage station cell As the primary cell, CELL1 can also reduce the impact of the transmission power reduction of the capacity station cell CELL2 as the secondary cell to the DC user to a minimum.
  • the user and/or the service are processed before the transmission power of the capacity station cell CELL2 is changed, so that the influence on the system performance and the user experience is small.
  • the power amplifier voltage regulation technology can dynamically adjust the working voltage of the power amplifier according to the actual output power value of the power amplifier to ensure that the power amplifier always works at the most appropriate voltage.
  • Figure 6 shows the relationship between the power amplifier output power and the power amplifier operating efficiency using the power amplifier voltage regulation technology and the power amplifier voltage regulation technology. It can be seen that, especially for the case where the output power of the power amplifier is relatively small, the power amplifier voltage regulation technology can improve the working efficiency of the power amplifier.
  • the power amplifier voltage regulation technology can be used to dynamically adjust the working voltage of the power amplifier of the station according to the actual output power value of the power amplifier.
  • the power amplifier voltage regulation technology is used to adjust the operating voltage of the station according to the power value required.
  • the RNC can inform the base station to use the power amplifier voltage regulation technique when reducing the transmission power.
  • FIG. 7 is a flow chart showing a method of performing power derating in a multi-frequency network comprising more than three inter-frequency and coverage cells, in accordance with another embodiment of the present invention. It can be seen that the lung method includes the following steps:
  • Step 710 Acquire a first load quantity of the coverage station cell and a second load quantity of each capacity station cell, according to the first load quantity and the second load quantity of the most priority capacity station cell according to a predetermined determination criterion.
  • the transmission power variation requirement of the most priority capacity station cell is determined.
  • priority can be set for the capacity station cell, and the most priority capacity station cell can be selected. Transmit power adjustment.
  • the priority can be set based on the size of the traffic, and the smaller the traffic, the greater the possibility that the capacity station cell is derated by power, so the priority can be set to be higher.
  • the priority can also be set based on the quality of service QoS of the service. If the service is small after processing some users based on QoS, it means that the capacity of the capacity station cell is degraded by power, so the priority can be set to be higher.
  • a second threshold value Th2 is preset for each capacity station cell.
  • the second threshold value is related to the transmission power of the corresponding capacity station cell. Therefore, according to an embodiment of the present invention, the second threshold value Th 2i of the i-th capacity station cell and the negative 3 ⁇ 4* of the capacity station cell may be used.
  • a transmit power change request is determined for the most prioritized capacity station cell (assumed to be CELL2i).
  • Step 720 The user and/or the service are processed by using a service processing manner according to the change of the transmit power of the capacity station cell CELL2i.
  • Step 730 Process the transmit power of the capacity station cell according to the change of the transmit power of the capacity station cell CELL2i.
  • Steps 720 and 730 are the same as steps 320 and 330 in the previous embodiment, and are not described herein again.
  • the appropriate capacity station cell when more than three inter-frequency and coverage cells are included in the multi-frequency network, the appropriate capacity station cell can be effectively selected for power adjustment, so that the power consumption of the base station can be reduced.
  • the method according to an embodiment of the present invention can be used for an omnidirectional cell, and can also be used for a directional cell, and can be used in various systems of multi-frequency systems, such as Global System for Mobile Communications (GSM), Universal Mobile Telecommunications System (U TS). Long-Term Evolution System (LTE), WiMax systems, etc., including multi-frequency systems of the same standard and multi-frequency systems of heterogeneous systems.
  • GSM Global System for Mobile Communications
  • U TS Universal Mobile Telecommunications System
  • LTE Long-Term Evolution System
  • WiMax systems etc.
  • FIG. 8 shows a schematic block diagram of a power derating device in accordance with one embodiment.
  • the device includes: a transmit power change determining unit 810, configured to acquire a first load quantity of the coverage station cell and a second load quantity of the capacity station cell, and determine according to the first load quantity and the second load quantity according to the predetermined The determining criterion determines a transmit power change requirement of the capacity station cell; the user service processing unit 820 is configured to process the user service by using a service processing manner according to the change of the transmit power of the capacity station cell; and the transmit power processing unit 830, Transmitting the transmit power of the capacity station cell according to the change of the transmit power of the capacity station cell.
  • the transmit power change determining unit 810 is further configured to: acquire a first load quantity of the coverage station cell, compare the first load quantity with a first threshold value, when the first load quantity is greater than the first threshold value, Determining the capacity station cell needs to raise the transmission power, and correspondingly determining the transmit power value that needs to be extracted; when the first negative 3 ⁇ 4* is below the first threshold, acquiring the second load of the capacity station cell, Comparing the second load amount with the second threshold value, when the second load amount is less than the second threshold value, determining that the capacity station cell is allowed to reduce the transmit power, and correspondingly determining the allowable reduced transmit power value, when the second load amount is When the second threshold is above, it is determined that the capacity station cell keeps the transmission power unchanged.
  • the transmit power change determining unit 810 is further configured to: determine to raise the transmit power of the capacity station cell by a predetermined level, or determine to directly boost the transmit power of the capacity station cell to a maximum that can be achieved. According to an implementation form, the transmit power change determining unit 810 is further configured to: determine whether the second load quantity is less than a third threshold value, and if the second load quantity is less than the third threshold value, determine to turn off the transmit power of the capacity station cell. Otherwise, it is determined that the transmission power is lowered by a predetermined level.
  • the user service processing unit 820 is further configured to: when determining that the capacity station cell is allowed to reduce the transmit power, modify a cell handover threshold of the peripheral user in the capacity station cell according to the allowed transmit power value, so that The peripheral user switches to the cell of the coverage station; and classifies other users except the peripheral user in the capacity station cell, and performs corresponding processing according to the user's category.
  • the user service processing unit 820 is further configured to: switch the ⁇ priority service to the coverage station cell, lower the low priority service rate to guarantee its basic bit rate, and enable the dual cell user to select the coverage station cell as its Primary cell.
  • Fig. 9 shows a schematic structural diagram of a power derating device according to another embodiment. It can be seen that the power derating device further includes a pre-processing unit 840 for processing the user based on the quality of service, securing the service for the priority user and the dedicated channel user, reducing the rate for the low priority service and only guaranteeing the basic bit rate.
  • a pre-processing unit 840 for processing the user based on the quality of service, securing the service for the priority user and the dedicated channel user, reducing the rate for the low priority service and only guaranteeing the basic bit rate.
  • the power derating device further includes a power amplifier voltage regulating unit 850, configured to enable the power amplifier voltage regulating function to dynamically adjust the power amplifier according to the actual output power value of the power amplifier in the base station when determining that the capacity station cell is allowed to reduce the transmission power. Operating Voltage.
  • the transmission power change determining unit further comprises a priority determining unit (not shown) for determining the priority of the capacity station cell based on the transmit power of the capacity station cell and the negative.
  • the power derating device further comprises a timing unit 860 for periodically triggering operation of the power derating device.
  • the device module in the embodiment of the present invention is divided into work bins, and the actual specific structure may be split or merged of the ⁇ 3 ⁇ 4 function modules.

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Abstract

本发明实施例公开了一种多频网络中功率降额的方法和装置。所述方法包括:获取覆盖站小区的第一负载量和容量站小区的第二负载量,并基于所述第一负载量和第二负载量根据预先确定的判断准则确定容量站小区的发射功率变化要求;根据所述容量站小区的发射功率变化要求利用业务处理方式对用户业务进行处理;以及根据所述容量站小区的发射功率变化要求对容量站小区的发射功率进行处理。由于在本发明实施例的方案中,根据业务降低了容量站小区的发射功率,从而显著降低了基站的实际功耗。另外,在本发明实施例的方案中还针对用户及业务的差异性进行处理,因此对系统性能和用户体验影响较小。

Description

多频网络中功率降额的方法和装置
本申请要求于 2011 年 10 月 19 日提交中国专利局、 申请号为 201110318274.1 , 发明名称为 "多频网络中功率降额的方法和装置 ", 上述专 利的全部内容通过引用结合在本申请中。 技术领域
本发明涉及通信技术领域。 具体而言, 涉及一种多频网络中功率降额的方法和装置。 背景技术
随着移动通信网络用户数量的迅速增长,网络不断扩容,部分地区已出现频段资源紧 张、 话务密度过大等现象。 网络容量的需求急剧增加, 频率资源的有限性和无线信道容量 的不足已经成为网络发展的重要瓶颈, 于是引入了多频网技术。 多频网技术是指同一移动 网采用不同的无线频段, 并让不同的频段合理地进行业务分担。 目前多频网的主要应用是
GSM900与 DCS1800系统构成的时分多址接入 (TD A)数字移动网、 UMTS R99与下行髙速分 组接入 (HSDPA)系统构成的网络等。双频网络是多频网技术的一种, 也是多频网技术中应 用最为广泛的技术之一。
图 1示出了在双频网络中两个异频同覆盖小区 Fl、 F2的示意图,其中为了说明起见, 将两个同覆盖小区分别示出。 用户可以在两小区 Fl、 F2之间进行小区选择、 重选和切换。 双频网络的基于两个频段的小区可以独^ ¾擁率规划, 有着不同的频谱范围, 不同的无 线传播规律, 不同的覆盖范围等, 而在组网方式上, 不需要改变原有网络的整体结构, 不 同的小区的设备资源可以共享, 同时根据容量的需求及话务分布情况, 还可以逐步引入多 个异频小区。
在多频网络中,通常有一个小区主要用于保证覆盖面积,称为覆盖站,其他的用于提 髙容量的小区称为容量站。 容量站主要用于提髙系统容量。 在现有的通用移动通信系统 (UMTS) 网络中, UMTS R99与 HSDPA系统构成的双频网络是一种典型的双频网络; 多频网 络占 UMTS网络的 90%, 其中最主要的是双频网络占 40%~50%, 其次是三频网络、 四频网络 等。 其中, UMTS R99中心频点为 2100MHz, 主要作为覆盖站, 满足覆盖要求, 而 HSDPA系 统主要作为容量站, 其中心频点可为 2100MHz或者 900MHz, 主要用于提髙系统容量。
图 2示出了现有网络的典型场景下基站的业务量分布情况。可见, 大约有 50%的基站 业务量在 5%以下, 即业务量极低, 近 40%的站点业务量在 45%以下, 即业务量为中等。也 就是说, 绝大多数基站的负载并不是很髙。
当业务量极低时,可以采用现有技术中的智會纖波关断技术来节能。然而, 当业务量 为中等时, 目前还没有相关的节能机制, 从而基站总是保持较髙的发射功率, 能耗较大。
发明内容
本发明实施例中提供了一种多频网络中功率降额的方法和装置。
根据一个方面,提出了一种多频网络中进行功率降额的方法,包括:获取覆盖站小区 的第一负¾*和容量站小区的第二负¾*, 并基于所述第一负 和第二负¾*根据预先 确定的判断准则确定容量站小区的发射功率变化要求; 根据所述容量站小区的发射功率变 化要求利用业务处理方式对用户业务进行处理; 以及根据腿容量站小区的发射功率变化 要求对容量站小区的发射功率进行处理。
根据另一个方面,提出了一种功率降额装置, 包括: 发射功率变化确定单元, 用于获 取覆盖站小区的第一负载量和容量站小区的第二负载量, 并基于所述第一负载量和第二负 根据预先确定的判断准则确定容量站小区的发射功率变化要求; 用户业务处理单元, 用于根据所述容量站小区的发射功率变化要求利用业务处理方式对用户业务进行处理; 以 及发射功率处理单元, 用于根据所述容量站小区的发射功率变化要求对容量站小区的发射 功率进行处理。
由于在本发明实施例的方案中,根据业务降低了容量站小区的发射功率,从而显著降 低了基站的实际功耗。 另外, 在本发明实施例的方案中还针对用户及业务的差异性进行处 理, 因此对系统性能和用户体验影响较小。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例中所需要 使用的附图作简单地介绍, 显而易见地, 下面描述中的附图仅仅是本发明的一些实施例, 对于本领域普通技术人员来讲, 在不付出创造性劳动的前提下, 还可以根据这些附图获得 其他的附图。
图 1示出了在双频网络中两个异频同覆盖小区的示意图。
图 2示出了现有网络的典型场景下基站的业务量分布情况。
图 3示出了根据本发明的一个实施例的进行功率降额的方法的流程图。
图 4示出了根据本发明实施例的确定容量站小区的发射功率变化要求的流程图。 图 5示出了根据本发明实施例的对用户和 /或业务进行处理的流程图。
图 6示出了使用功放调压技术和未使用功放调压技术的情况。 图 7示出了根据本发明的另一个实施例的进行功率降额的方法的流程图。 图 8示出了根据本发明实施例的功率降额装置的示意性结构图。
图 9示出了根据本发明另一实施例的功率降额装置的示意性结构图。
具体实肺式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整的 描述, 显然, 所描述的实施例仅仅是本发明一部分实施例, 而不是全部的实施例。基于本 发明中的实施例, 本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实 施例, 都属于本发明 W的范围。
如上面提及的那样,在多频网络中,覆盖站小区主要用于保证覆盖面积,而容量站小 区用于提髙系统容量。 当多频网络中的负载量较髙时, 覆盖站小区和容量站小区均按照最 大功率进行发射, 以保证各小区中的服务; 当业务负载下降时, 则保持覆盖站小区的发射 功率不变, 同时可以降低容量站小区的发射功率以节能。
在下面的实施例中, 在没有另外说明的情况下, 用 CELL1表示覆盖站小区, CELL2表 示容量站小区。
图 3示出了根据本发明的一个实施例的在双频网络中进行功率降额的方法的流程图。 可见, 法包括如下步骤。
步骤 310、获取覆盖站小区的第一负 和容量站小区的第二负¾*, 并基于所述第 一负载量和第二负载量根据预先确定的判断准则确定容量站小区 CELL2的发射功率变化要 求。 在本发明实施例中, 负载量这一术语表示小区中的资源占用情况。 本领域技术人员知 道, 负载量可以根据实际需要通过不同指标来反映, 例如可以通过业务量、 用户数这些指 标来反映, 因此可以相应地选择判断准则来确定容量站小区 CELL2的发射功率变化要求。 发射功率变化要求可以是: 提髙 CELL2的发射功率和需要提髙的发射功率值、 降低 CELL2 的发射功率和允许降低的发射功率值、 以及保持 CELL2的发射功率不变。 关于具体如何确 定发射功率变化要求, 在下文中将结合图 4具体描述。
步骤 320、 根据容量站小区 CELL2的发射功率变化要求利用业务处理方式对用户和 / 或业务进行处理。 在此, 所使用的处理方式可以根据实际需要来确定, 包括但不限于: 对 髙优先级业务处理、 对低优先级业务处理以及对双小区(DC)用户处理, 其目的是为了尽 可能降低对系统性能和用户体验影响。 关于具体如何对用户业务进行处理, 在下文中将结 合图 5具体描述。
步骤 330、根据容量站小区 CELL2的发射功率变化要求对容量站小区的发射功率进行 处理。
雌的是,上述功率降额方法可以周期性地执行,例如,为此可以在基站中设置有定 时器, 以周期性地触发上述方法。 例如, 可以每 100ms执行一次±¾功率降额方法。
另外,若在步骤 310中采用基于业务 QoS的负载量来确定 CELL2的发射功率变化要求, 则鶴的是, 在步骤 310之前基于业务 QoS对容量站小区 CELL2中的用户先进行处理。 具 体而言, 根据用户的差异性以及业务的优先级来进行处理。 对于髙优先级用户和专用信道 (DCH)用户, 仍然保障其业务, 即维持不变, 而对于低优先级业务, 降低速率并仅仅保障 其基本比 ¾率 (GBR), 而并不保证实时速率。 通过基于业务 QoS预先降低了低优先级业 务的速率, 从而降低了 CELL2中的负载量 L2,使得在随后的步骤 310中基于 QoS的负载量 来确定 CELL2的发射功率变化要求时,具有更大的可能得到降低 CELL2的发射功率的要求, 从 W 利于节省基站的功耗。
在本实施例的方法中,根据小区的负载量来调整容量站小区的发射功率,从而解决了 现有技术中对于中等业务 *¾法节能的问题, 显著降低了基站的实际功耗。 另外, 在本发 明实施例的方案中还针对用户及业务的差异性进行处理, 因此对系统性能和用户体验影响 较小。
图 4示出了根据本发明实施例的基于覆盖站小区和容量站小区的负载量根据预先确 定的判断准则确定容量站小区的发射功率变化要求的流程图。 从图 4可见, 根据小区负载 量确定容量站小区 CELL2的发射功率变化要求具体包括:
步骤 410、 获取覆盖站小区 CELL1的第一负载量 Ll, 将第一负载量 L1与第一门限值 Thl 比较。 如前面的实施例中所描述的, 负载量可以根据实际需要通过不同指标来反映, 例如可以通过业务量、 用户数这些指¾反映, 因此可以相应地选择所使用的第一门限值 Thl。例如, 通过业务量来反映负载量的情况下, 假定 CELL1可以承载的业务总量为 A, 设 定 Thl为 A*80%。 或者, 通过用户数来反映负载量的情况下, 假定 CELL1可以容纳的用户 数为 B, 设定 Thl为 B*80%。当然这里的 80%仅仅是作为例子来给出, 本领域技术人员可以 根据实际情况来具体设定。第一门限值 Thl与覆盖站小区 CELL1的发射功率 P1有关。例如, 当覆盖站小区的发射功率 P1越大,则 CELL1可承载的业务总量 A也越大,或者可容纳的用 户数 B越多, 等等。
步骤 420、 当第一负载量 L1大于第一门限值 Thl时, 确定容量站小区 CELL2需要提 髙发射功率, 并相应地确定需要提髙的发射功率值。 当 Ll>Thl时, 表明覆盖站小区 CELL1 的负 太大, 因此需要提髙容量站小区 CELL2的发射功率, 以便满足业务的容量需求。 当确定容量站小区 CELL2需要提髙发射功率时, 将容量站小区 CELL2的发射功率提髙至所 需功率值。 为此可以将容量站小区 CELL2的发射功率分为 N个等级 (N为根据需要确定的 自然数), 根据功放等硬件限制, 假定容量站小区 CELL2的最大发射功率为 P 则功率分 级后, 其发射功率分别记为 Ρ^ Ρ^ ,ν, Ρ^ (其中 Ρ2, =Ρ Ρ2, Ν >0)Ο 这里, 每个等级 之间的功率差可以根据需要来确定, 而并不一定要求是相同的。 在提髙发射功率时, 将发 射功率按照等级来提髙。 这里也并非要求是逐级提髙, 而是可以根据实际情况来确定提髙 一个或者若干个等级, 以便满足业务的容量需求。 由于存在突发业务的情况, 因此在提髙 发射功率时雌将发射功率直接提髙至能够实现的最大值 Ρ 以避免出现系统容量不能 满足业务需求的情况。
步骤 430、 当第一负载量 L1在第一门限值 Thl以下时, 获取容量站小区 CELL2的第 二负载量 L2, 将第二负载量 L2与第二门限值 Th2比较。 由于当 L1在 Thl以下时, 表明覆 盖站小区 CELL1的负 不大, 因此可以进一步判断容量站小区 CELL2的发射功率是否需 要调整。 如上所述的那样, 也可以根据反映负 的指标相应地选择所使用的第二门限值 Th2。例如, 通过业务量来反映负载量的情况下, 假定 CELL2可以承载的业务总量为 B, 设 定 Th2为 B*20%。 或者, 通过用户数来反映负载量的情况下, 假定 CELL2可以容纳的用户 数为 B, 设定 Th2为 B*20%。这里的 20%也仅仅是作为例子来给出, 本领域技术人员可以根 据实际情况来具体设定。 第二门限值 Th2同样与容量站小区 CELL2的发射功率 P2有关。
步骤 440、 当第二负载量 L2小于第二门限值 Th2时, 确定容量站小区 CELL2允许降 低发射功率, 并相应地确定允许降低的发射功率值。 当 L2<Th2时, 说明容量站小区 CELL2 的负载量较小, 因此可以降低 CELL2的发射功率以节省功耗。 为此, 可以进一步判断容量 站小区 CELL2的第二负载量 L2是否小于第三门限值 Th3, 如果第二负载量 L2小于第三门 限值 ¾3, 则确定允许关断容量站小区的发射功率, 否则确定允许将发射功率降低预先确 定的等级。在此,第三门限值 Th3是预先设定的值。当第二负载量小于第三门限值 Th3时, 说明该容量站小区的业务负 很小, 可以进行载波关断。 关纖波也即关断小区, 包括 关断该小区公共信道中的导频信息、 广播信息等。 载波关断技术是现有技术, 这里不再详 细描述。如果第二负载量 L2在第三门限值 Th3以上时,不倉 行载波关断,为了尽可能避 免对用户的影响,确定在降低发射功率时采用逐步降低的方法。在此,可以采用在步骤 420 中已经设定的等级划分, 也可以采用不同的等级划分。 等级之间的功率差可以根据需 要来确定, 而并不一定要求是相同的。 在降低发射功率时, 将发射功率按照等级来降低。 这里也并非要求是逐级降低, 而是可以根据实际情况来确定降低一个或 干个等级。 步骤 450、 当第二负载量 L2在第二门限值 Th2以上时, 表明覆盖站小区 CELL1和容 量站小区 CELL2都处于合适的工作状态, 即处于稳定的工作状态, 因此确定容量站小区 CELL2保持发射功率不变。
可见,在根据本实施例的方案中,基于覆盖站小区和容量站小区的负载量利用相应的 门限值进行判断, 从而可以准确地对小区的工作状态进行分类, 以便进一步控制容量站小 区的发射功率。
图 5示出了根据本发明实施例的、根据容量站小区 CELL2的发射功率变化要求利用业 务处理方式对用户和 /或业务进行处理的流程图。 从图 5可见, 对用户和 /或业务进行处理 包括以下步骤。
步骤 510、获取容量站小区 CELL2的发射功率变化要求。在此, 可以从结合图 4所描 述的方法中获得上述发射功率变化要求。
步骤 520、当确定容量站小区 CELL2允许降低发射功率, 并相应地确定允许降低的发 射功率值时, 根据该允许降低的发射功率值来修改容量站小区中的外围用户的小区切换门 限值, 使得外围用户中处于连接状态的用户切换至覆盖站的小区中, 而处于空闲状态用户 待功率降低后, 自动重选至覆盖站小区。 在本发明实施例中, 外围用户的含义是, 原来在 容量站小区 CELL2的覆盖范围中, 然而在降低容量站小区的发射功率之后并不处于其覆盖 范围中的用户。 因此, 可以根据允许降低的发射功率值来确定外围用户并对其小区切换门 限值进行修改。针对切换的用户, 例如, 可以通过无线网络控制器(RNC)来修改用户的小 区切换门限值。 由于 CELL2的发射功率降低时, CELL2覆盖范围相应减小, 原属于 CELL2 的覆盖范围内的外围用户可能不能继续附着在 CELL2中, 因此通过修改这些外围用户的切 换门限值, 可以使得这些用户认为 CELL2的信号强度不能满足通信要求, 从而提前切换到 覆盖站小区 CELL1中, 由此避免了后续对 CELL2的发射功率的调整影响外围用户。
步骤 530、对容量站小区 CELL2中除外围用户之外的其他用户进行分类, 并根据用户 的类别进行相应处理。 例如, 可以将髙优先级业务切换至覆盖站小区 CELL1中, 从而保证 髙优先级业务的服务; 可以将低优先级业务降低速率并保障其基本比 ¾率, 从而在降低 容量站小区 CELL2的发射功率之后, 尽可能地减少对容量站小区 CELL2的容量的影响; 以 及可以使得双小区(DC)用户选择覆盖站小区 CELL1作为其主小区, 由于 DC用户同时使用 两个小区, 通过将覆盖站小区 CELL1作为主小区, 同样可以使得作为辅小区的容量站小区 CELL2的发射功率降低对于 DC用户的影响减少到最小。
如果确定容量站小区 CELL2的发射功率需要增大或者保持不变, 则无需对用户和 /或 业务进行±¾处理。
可见,在根据本实施例的方案中,在改变容量站小区 CELL2的发射功率之前对用户和 /或业务进行了处理, 从而使得对于系统性能和用户体验的影响较小。
另外,发明人注意到,功放的工作效率与功放的输出功率有关,功放的输出功率越低, 功放的工作效率越低。 功放调压技术可以根据功放实际的输出功率数值, 动态地调整功放 的工作电压, 保证功放始终工作在最恰当的电压下。 图 6示出了使用功放调压技术和未使 用功放调压技术的功放输出功率与功放工作效率的关系。 可见, 尤其是针对功放的输出功 率比较小的情况, 功放调压技术可以提升功放的工作效率。 为此, 在本发明的实施例中, 当确定容量站小区 CELL2允许降低发射功率时, 可以使用功放调压技术, 根据功放实际的 输出功率数值, 动态地调 ¾¾站的功放的工作电压,当容量站小区 CELL2需要增加功率时, 使用功放调压技术, 使得根据需要提髙的功率值调 ¾¾站的工作电压。 例如, 可以由 RNC 通知基站在降低发射功率时使用功放调压技术。
可见,在功率调节 i¾中,通过在提髙发射功率时直接将发射功率提髙至最大值,而 在降低发射功率时按照预先确定的等级进行, 避免了系统容量不能满足业务需求的情况, 并且可以避免降低功率对用户的影响。 另外, 通过使用功放调压技术, 即做 CELL2的发 射功率降低到较低水平时, 功放的工作效率也不会很低, 使得功放得到充分利用, 从 省了功率资源。
当多频网络中包含 2个异频同覆盖小区时,可以直接使用前面的实施例的方案。而当 存在 3个以上的异频同覆盖小区时, 需要进一步的设计。 图 7示出了根据本发明的另一个 实施例的在包括 3个以上的异频同覆盖小区的多频网络中进行功率降额的方法的流程图。 可见, 肺法包括如下步骤:
步骤 710、获取覆盖站小区的第一负载量和各容量站小区的第二负载量,基于所述第 一负载量和优先级最髙的容量站小区的第二负载量根据预先确定的判断准则确定优先级最 髙的容量站小区的发射功率变化要求。 在存在 3个以上的异频同覆盖小区时, 除了覆盖站 小区之外还存在多个容量站小区, 因此, 可以对容量站小区设置优先级, 并选择优先级最 髙的容量站小区来进行发射功率调整。 例如, 可以基于业务量大小来设置优先级, 业务量 越小, 说明该容量站小区被功率降额的可能性越大, 因此可以将其优先级设为越髙。 也可 以基于业务的服务质量 QoS来设置优先级。 如果基于 QoS对部分用户进行处理之后, 业务 小, 则说明该容量站小区被功率降额的可能性越大, 因此可以将其优先级设为越髙。 在结合图 4所描述的实施例中可知, 对于每个容量站小区都预先设置有第二门限值 Th2, 该第二门限值与相应容量站小区的发射功率有关, 因此根据本发明的一个实施形式, 可以 根据第 i个容量站小区的第二门限值 Th2i和该容量站小区的负 ¾*L2i来确定优先级。例如, 可以设置为优先级 Pri=Th2i/L2i。 由此, 在步骤 710中, 针对优先级最髙的容量站小区(假 定为 CELL2i)来确定发射功率变化要求。
步骤 720、根据容量站小区 CELL2i的发射功率变化要求利用业务处理方式对用户和 / 或业务进行处理。
步骤 730、根据容量站小区 CELL2i的发射功率变化要求对容量站小区的发射功率进 行处理。
步骤 720和 730与前面实施例中的步骤 320、 330相同, 这里不再赘述。
通过该实施例所提供的方案,在多频网络中包含 3个以上的异频同覆盖小区时,可以 有效地选择合适的容量站小区进行功率调整, 因此可以降低基站的功耗。
根据本发明实施例的方法可以用于全向小区,也可以用于定向小区,并且可以用于各 种制式的多频系统, 例如全球移动通信系统(GSM)、通用移动通信系统(U TS)、长期演进 系统(LTE)、 WiMax系统等等, 包括同制式的多频系统以及异制式的多频系统。
相应地,根据本发明的一个实施例,还提出了一种功率降额装置。图 8示出了根据一 个实施例的功率降额装置的一个示意性结构图。 可见, 该装置包括: 发射功率变化确定单 元 810, 用于获取覆盖站小区的第一负载量和容量站小区的第二负载量, 并基于所述第一 负载量和第二负载量根据预先确定的判断准则确定容量站小区的发射功率变化要求; 用户 业务处理单元 820, 用于根据所述容量站小区的发射功率变化要求利用业务处理方式对用 户业务进行处理; 以及发射功率处理单元 830, 用于根据所述容量站小区的发射功率变化 要求对容量站小区的发射功率进行处理。
根据一个实施形式,发射功率变化确定单元 810进一步用于:获取覆盖站小区的第一 负载量, 将第一负载量与第一门限值比较, 当第一负载量大于第一门限值时, 确定容量站 小区需要提髙发射功率, 并相应地确定需要提髙的发射功率值; 当第一负¾*在第一门限 值以下时, 获取容量站小区的第二负载量, 将第二负载量与第二门限值比较, 当第二负载 量小于第二门限值时, 确定容量站小区允许降低发射功率, 并相应地确定允许降低的发射 功率值, 当第二负载量在第二门限值以上时, 确定容量站小区保持发射功率不变。
根据一个实施形式,发射功率变化确定单元 810进一步用于:确定将容量站小区的发 射功率提髙预先确定的等级, 或者确定将容量站小区的发射功率直接提髙至能够实现的最 大值。 根据一个实施形式,发射功率变化确定单元 810进一步用于:判断第二负载量是否小 于第三门限值, 如果第二负载量小于第三门限值, 则确定关断容量站小区的发射功率, 否 则确定将发射功率降低预先确定的等级。
根据一个实施形式,用户业务处理单元 820进一步用于:当确定容量站小区允许降低 发射功率时, 根据允许降低的发射功率值来修改容量站小区中的外围用户的小区切换门限 值, 使得所述外围用户切换至覆盖站的小区中; 以及对容量站小区中除外围用户之外的其 他用户进行分类, 并根据用户的类别进行相应处理。
根据一个实施形式,用户业务处理单元 820进一步用于:将髙优先级业务切换至覆盖 站小区中, 将低优先级业务降低速率保障其基本比特速率, 以及使得双小区用户选择覆盖 站小区作为其主小区。
图 9示出了根据另一个实施例的功率降额装置的示意性结构图。可见,功率降额装置 还包括预处理单元 840, 用于基于服务质量处理用户, 对于髙优先级用户和专用信道用户 保障其业务, 对于低优先级业务降低其速率并仅仅保障基本比特速率。
根据一个实施形式, 功率降额装置还包括功放调压单元 850, 用于在确定容量站小区 允许降低发射功率时, 启用功放调压功能, 以根据基站中功放实际的输出功率数值动态调 整功放的工作电压。
根据一个实施形式, 发射功率变化确定单元还包括优先级确定单元(未示出), 用于 根据容量站小区的发射功率和负 确定容量站小区的优先级。
根据一个实施形式, 功率降额装置还包括定时单元 860, 用于周期性地触发所述功率 降额装置的工作。
本领域技术人员应该理解,本发明实施例中装置模块的划分为功倉 分,实际具体结 构可以为±¾功能模块的拆分或合并。
上述本发明实施例序号仅仅为了描述, 不代表实施例的优劣。
权利要求的内容记载的方案也是本发明实施例的保护范围。
本领域普通技术人员可以理解上述实施例方法中的全部或部分处理是可以通过 来指令相关的硬件完成, 的 可以存储于一种计 可读存储介质中。
以上所述仅为本发明的较佳实施例而已,并非用于限定本发明的保护范围。凡在本发 明的精神和原则之内, 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。

Claims

权 利 要 求
1.一种多频网络中进行功率降额的方法, 包括:
获^ ϋ站小区的第一负栽量和容量站小区的第二负栽量, 并基于所述第一负栽量和 第二负栽量根据预先确定的判断准则确定容量站小区的发射功率变化要求;
根据所述容量站小区的发射功率变化要求利用业务处理方式对用户业务进行处理; 以 及
根据所述容量站小区的发射功率变化要求对容量站小区的发射功率进行处理。
2. 根据权利要求 1所述的方法,其中所述获取 盖站小区的第一负栽量和容量站小区 的第二负栽量, 并基于所述第一负栽量和第二负栽量根据预先确定的判断准则确定容量站 小区的发射功率变化要求包括:
获^ ϋ站小区的第一负栽量, 将第一负栽量与第一门限值比较, 当第一负栽量大于 第一门限值时,确定容量站小区需要提高发射功率,并相应地确定需要提高的发射功率值; 当第一负栽量在第一门限值以下时, 获^^量站小区的第二负栽量, 将第二负栽量与 第二门限值比较, 当第二负栽量小于第二门限值时, 确定容量站小区允许降« ^射功率, 并相应地确定允许降低的发射功率值, 而当第二负栽量在第二门限值以上时, 确定容量站 小区保持发射功率不变。
3. 根据权利要求 2所述的方法,其中确定容量站小区需要提高发射功率,并相应地确 定需要提高的发射功率值具体包括:
确定将容量站小区的发射功率提高预先确定的等级, 或者确定将容量站小区的发射功 率直接提高至能够实现的最大值。
4. 根据权利要求 2所述的方法,其中确定容量站小区允许降低发射功率,并相应地确 定允许降低的发射功率值具体包括:
判断第二负栽量是否小于第三门限值, 如果第二负栽量小于第三门限值, 则确定关断 容量站小区的发射功率, 否则确定将发射功率降低预先确定的等级。
5. 根据权利要求 2所述的方法,其中所述根据所述容量站小区的发射功率变化要求利 用业务处理方式对用户业务进行处理包括:
当确定容量站小区允许降低发射功率时, 根据允许降低的发射功率值来修改容量站小 区中的外围用户的小区切换门限值, 使得所 卜围用户切换至覆盖站的小区中; 以 Sjt†容 量站小区中除外围用户之外的其他用户进行分类, 并根据用户的类别进行相应处理。
6. 根据权利要求 5所述的方法,其中所述根据用户的类别进行相应处理包括:将高优 先级业务切换至覆盖站小区中, 将低优先级业务降低速率保障其基本比特速率, 以及使得 双小区用户选择覆盖站小区作为其主小区。
7. 根据权利要求 1所述的方法,其中在所述获取覆盖站小区的第一负栽量和容量站小 区的第二负载量, 并基于所述第一负栽量和第二负载量根据预先确定的判断准则确定容量 站小区的发射功率变化要求之前, 还包括:
基于服务质量处理用户, 对于高优先级用户和专用信道用户保障其业务, 对于低优先 务降低其速率并仅仅保障^ ^比特速率。
8. 根据权利要求 2所述的方法,其中在确定容量站小区允许降低发射功率时,启用功 放调压功能, 以根据^^中功放实际的输出功率数值动态调整功放的工作电压。
9. 根据权利要求 1所述的方法,其中当存在多于两个异频同 ¾ϋ的容量站小区时,首 先针对优先级高的容量站小区进行处理, 其中根据容量站小区的发射功率和负栽量确定容 量站小区的优先级。
10.—种功率降额装置, 包括:
发射功率变化确定单元, 用于获 ^¾J1站小区的第一负载量和容量站小区的第二负栽 量, 并基于所述第一负栽量和第二负栽量根据预先确定的判断准则确定容量站小区的发射 功率变化要求;
用户业务处理单元, 用于根据所述容量站小区的发射功率变化要求利用业务处理方式 对用户业务进行处理; 以及
发射功率处理单元, 用于根据所^量站小区的发射功率变化要求对容量站小区的发 射功率进行处理。
11. 根据权利要求 10所述的装置, 其中所述发射功率变化确定单元进一步用于: 获^ ϋ站小区的第一负栽量, 将第一负栽量与第一门限值比较, 当第一负栽量大于 第一门限值时,确定容量站小区需要提高发射功率,并相应地确定需要提高的发射功率值; 当第一负栽量在第一门限值以下时, 获^^量站小区的第二负栽量, 将第二负栽量与 第二门限值比较, 当第二负栽量小于第二门限值时, 确定容量站小区允许降«>射功率, 并相应地确定允许降低的发射功率值, 当第二负栽量在第二门限值以上时, 确定容量站小 区保持发射功率不变。
12. 根据权利要求 11所述的装置, 其中所述发射功率变化确定单元进一步用于: 确定将容量站小区的发射功率提高预先确定的等级, 或者确定将容量站小区的发射功 率直接提高至能够实现的最大值。
13. 根据权利要求 11所述的方法, 其中所述发射功率变化确定单元进一步用于: 判断第二负栽量是否小于第三门限值, 如果第二负栽量小于第三门限值, 则确定关断 容量站小区的发射功率, 否则确定将发射功率降低预先确定的等级。
14. 根据权利要求 11所述的装置, 其中所述用户业务处理单元进一步用于: 当确定容量站小区允许降«_射功率时, 根据允许降低的发射功率值来修^量站小 区中的外围用户的小区切换门限值, 使得所 ^卜围用户切换至 ¾ϋ站的小区中; 以 5对容 量站小区中除外围用户之外的其他用户进行分类, 并根据用户的类别进行相应处理。
15. 根据权利要求 14所述的装置,其中所述用户业务处理单元进一步用于:将高优先 ^Jk务切换至 ¾ϋ站小区中, 将低优先^ 务降低速率保障其^ ^比特速率, 以及使得双 小区用户选择覆盖站小区作为其主小区。
16. 根据权利要求 10所述的装置, 还包括预处理单元, 用于基于服务盾量处理用户, 对于高优先级用户和专用信道用户保障其业务, 对于低优先级业务降低其速率并仅仅保障 比特速率。
17. 根据权利要求 11所述的装置,还包括功放调压单元,用于在确定容量站小区允许 降低发射功率时, 启用功放调压功能, 以根据基站中功放实际的输出功率数值动态调整功 放的工作电压。
18. 根据权利要求 10所述的装置,其中所述发射功率变化确定单元还包括优先级确定 单元, 用于根据容量站小区的发射功率和负栽量确定容量站小区的优先级。
19. 根据权利要求 10至 18之一 的装置, 还包括定时单元, 用于周期性地触发所 述功率降额装置的工作。
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