WO2012079357A1 - 一种无线通信系统中基站服务质量保证方法和装置 - Google Patents

一种无线通信系统中基站服务质量保证方法和装置 Download PDF

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Publication number
WO2012079357A1
WO2012079357A1 PCT/CN2011/076200 CN2011076200W WO2012079357A1 WO 2012079357 A1 WO2012079357 A1 WO 2012079357A1 CN 2011076200 W CN2011076200 W CN 2011076200W WO 2012079357 A1 WO2012079357 A1 WO 2012079357A1
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Prior art keywords
base station
data packet
rate
congested
gateway
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PCT/CN2011/076200
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English (en)
French (fr)
Inventor
陈琳
谢峰
黄莹
祝建建
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中兴通讯股份有限公司
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Publication of WO2012079357A1 publication Critical patent/WO2012079357A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/16Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18Negotiating wireless communication parameters
    • H04W28/22Negotiating communication rate
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08Access point devices
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/16Gateway arrangements

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a base station service quality assurance method and apparatus in a wireless communication system. Background technique
  • a base station refers to a device that provides services to a terminal, and the base station and the terminal perform wireless communication by electromagnetic waves.
  • the wireless communication system can provide wireless coverage for a certain geographical range of terminals through a base station, and this geographical range is called a cell.
  • wireless communication systems need to deploy base stations with a large coverage in order to be able to provide wireless communication to users on a large scale.
  • a base station is often referred to as a macro base station (Macro BS), and the area covered by it is often referred to as a Macro Cell.
  • the wireless communication system needs to provide users with higher quality wireless communication services in certain environments or scenarios, taking into account different needs of users and different usage environments.
  • Some base stations with small coverage and low transmission power are thus used.
  • These small base stations include a small base station (Micro BS), a micro base station (Pico BS), and a child base station (Femto BS) (which may also be referred to as a home base station, a personal base station).
  • a macro base station can cover a maximum area of 2-3 km, while the coverage of the base station does not exceed 30 meters. Due to the large difference in their coverage, a large number (several hundred or even thousands) of base stations may be deployed within the coverage of the macro base station to improve the quality of communication services in the room, as shown in Fig. 1.
  • next-generation wireless base stations have high-speed data transmission capabilities to meet the increasing demand for speed, such as the current LTE and WiMAX standards can reach tens of megabytes to hundreds of megabytes of air interface bandwidth.
  • the high rate of air interface brings about the transmission rate between the base station and the gateway/base station controller.
  • the connection must support the uplink and downlink data of the base station.
  • the connection between the base station and the gateway/base station controller usually uses the optical transmission access mode of the E1/STM-1/Ethernet interface, such as SDH, GPON, and the like.
  • the dedicated transport connection is configured to accommodate data transmission between the base station and the gateway/base station controller based on the traffic requirements of the base station and the gateway/base station controller.
  • the base station In the environment of the home base station, for example, the base station, as shown in FIG. 3, the base station is accessed through a public telephone network, such as a DSL network line inside the home.
  • the transmission between the base station and the child base station gateway is transmitted via DSL.
  • Home DSL networks typically provide only a few megabits of bandwidth, and these megabits of bandwidth also provide connectivity for notebooks or other end devices that are wired in the home.
  • the real bandwidth of DSL is often affected by backbone network congestion and cell traffic. For example, neighbor P2P downloads will occupy most of the bandwidth of the cell exit. Therefore, the bandwidth that can be used to transmit uplink and downlink data between the child base station and the child base station gateway is usually much smaller than the air interface bandwidth and fluctuates from time to time.
  • the present invention provides a method and a device for guaranteeing quality of a base station in a wireless communication system, which are used to solve the problem that the transmission bandwidth of the base station, especially the home base station, is fluctuating greatly in the prior art, and the data packet is easily lost.
  • the present invention provides a method for guaranteeing quality of a base station in a wireless communication system, including:
  • a data packet is transmitted between the base station and the gateway, and the base station detects whether the current transmission network is congested, and if so, controls the access request of the new service and/or the currently accessed service.
  • the manner in which the base station detects whether the current transmission network is congested includes:
  • the rate at which the data transmitting end sends the data packet and the data receiving end receives the corresponding data packet when the base station acquires the transmission data, and detects the current transmission network based on the sending and receiving rates of the data packet. Whether it is congested.
  • the detecting, by the base station, whether the current transmission network is congested based on the sending and receiving rates of the data packet includes:
  • the base station compares the sending rate and the receiving rate of the data packet to obtain a difference R, and determines whether the R reaches a preset congestion threshold. If yes, it determines that the current transmission network is congested.
  • the rate at which the data transmitting end sends the data packet and the data receiving end receives the corresponding data packet when the base station acquires the transmission data includes one of the following manners:
  • the base station sends a bandwidth detection data packet to the gateway at a fixed rate, and receives a bandwidth detection data packet reception rate message fed back by the gateway; or, in a second manner, the base station triggers the gateway to send the bandwidth detection data packet to the base station at a fixed rate, the base station Obtaining a rate of receiving the bandwidth detection data packet by itself; or, in a third manner, the base station and the gateway exchange service data packets, the base station statistics the rate at which the service data packet is sent and received, and receives the gateway transmission and reception service reported by the gateway. The rate message for the packet.
  • the triggering condition for transmitting the data packet between the base station and the gateway includes one or more of the following manners:
  • the base station When the set timing time arrives; the base station receives a request for the terminal to establish a new connection; or, when the base station receives the access request of the terminal.
  • the base station obtains the current transmission available bandwidth between the base station and the gateway according to the fixed rate of the bandwidth detection data packet sent by the data transmitting end and the receiving rate fed back by the data receiving end.
  • the method for controlling the access request of the new service and/or the currently accessed service by the base station in the method of the present invention specifically includes:
  • the base station After detecting that the current transmission network is congested, the base station controls the currently accessed service, including:
  • the base station uplink scheduling When the base station uplink scheduling is triggered, the base station according to the current transmission available bandwidth and the terminal The bandwidth request allocates the uplink air interface resource to the terminal, where the sum of the allocated uplink air interface resources is less than or equal to the upper limit of the currently available transmission bandwidth.
  • controlling the access request of the new service includes:
  • the base station determines whether the current transmission available bandwidth supports the minimum transmission rate required by the new connection request, and if so, accepts the request of the terminal to establish a new connection, otherwise, rejects the connection. request.
  • controlling the access request of the new service further includes: adding, by the base station, a cell prohibition identifier to the system message, to indicate that the terminal is prohibited from accessing.
  • controlling the currently accessed service further includes: the base station broadcasts a message to the currently accessed terminal, notifying each terminal that the current transmission network is congested, and each terminal may select to switch to Other base stations; or,
  • the base station When the currently congested transmission network cannot support the service of the currently accessed terminal, the base station sends a message to the terminal to notify the terminal to perform the base station handover.
  • the invention also provides a base station, comprising:
  • a congestion detection module configured to detect whether the current transmission network is congested when transmitting a data packet between the base station and the gateway;
  • the service control module is configured to control, when the congestion detection module detects the congestion of the transmission network, the access request for the new service and/or the currently accessed service.
  • the data can be exchanged between the base station and the gateway, and the current transmission belt can be used.
  • the wide congestion state is judged, which provides a basis for the access of the new service request and the reasonable control of the accessed service.
  • the loss of the data packet at the base station is avoided, which is guaranteed to a certain extent.
  • the solution of the present invention can also perform the transmission of the bandwidth detection data packet at a specific rate between the base station and the gateway to obtain the current available bandwidth.
  • This method enables the base station to adaptively allocate air interface resources according to the transmission bandwidth, such as When the uplink bandwidth is reduced, the base station can reduce the uplink bandwidth allocation to the air interface of the user terminal. When the bandwidth continues to decrease, the base station can temporarily refuse to establish a new connection or access a new terminal according to the situation.
  • the adaptive allocation of air interface resources according to the transmission bandwidth avoids the loss of the data packet at the child base station and reduces the delay of the terminal data access, thereby ensuring the quality of service of the terminal accessing the base station.
  • FIG. 1 is a schematic diagram of a structure deployment of a wireless communication system in the prior art
  • FIG. 2 is a schematic diagram of a network structure of an LTE in the prior art
  • FIG. 3 is a schematic structural diagram of a network of a child base station in the prior art
  • FIG. 4 is a schematic flowchart of a method for guaranteeing a base station service quality in a wireless communication system according to the present invention
  • FIG. 5 is a schematic flowchart of a method for guaranteeing quality of a base station in a wireless communication system according to Embodiment 1 of the present invention.
  • FIG. 6 is a schematic flowchart of a method for guaranteeing a base station service quality in a wireless communication system according to Embodiment 2 of the present invention
  • 7 is a schematic flowchart of a method for guaranteeing a base station service quality in a wireless communication system according to Embodiment 3 of the present invention
  • FIG. 8 is a schematic flowchart of a method for guaranteeing quality of a base station in a wireless communication system according to Embodiment 4 of the present invention.
  • FIG. 9 is a schematic structural diagram of a base station provided by the present invention. detailed description
  • the present invention provides a method and apparatus for guaranteeing quality of a base station in a wireless communication system, where the solution detects whether a transmission bandwidth between a base station and a gateway is congested, and requests a base station for a new service.
  • the access and the services that have been accessed are provided with reasonable control, thereby ensuring the quality of service of the base station.
  • the present invention provides a method for guaranteeing quality of a base station in a wireless communication system, including:
  • Step 401 Transmit a data packet between the base station and the gateway.
  • Step 402 the base station detects whether the current transmission network is congested, and if so, step 403 is performed; otherwise, step 404 is performed;
  • Step 403 The base station controls the access request of the new service and/or the currently accessed service, and ends the current process.
  • Step 404 The base station performs normal service operations.
  • the manner in which the base station detects whether the current transmission network is congested includes: when the base station acquires the transmission data, the data sending end sends the data packet and the data receiving end receives the pair.
  • the current transmission network is checked for congestion based on the rate of the data packet and based on the transmission and reception rates of the data packet.
  • the rate at which the data transmitting end sends the data packet and the data receiving end receives the corresponding data packet when the base station acquires the transmission data includes one of the following manners:
  • the base station sends a bandwidth detection data packet to the gateway at a fixed rate, and receives a bandwidth detection data packet reception rate message fed back by the gateway; or, in a second manner, the base station triggers the gateway to send the bandwidth detection data packet to the base station at a fixed rate, the base station Obtaining a rate of receiving the bandwidth detection data packet by itself; or, in a third manner, the base station and the gateway exchange service data packets, the base station statistics the rate at which the service data packet is sent and received, and receives the gateway transmission and reception service reported by the gateway. The rate message for the packet.
  • the triggering condition for transmitting the data packet between the base station and the gateway includes one or more of the following manners when the mode 1 or the mode 2 is used:
  • the base station When the set timing time arrives; the base station receives a request for the terminal to establish a new connection; or, when the base station receives the access request of the terminal.
  • the base station obtains the current transmission available bandwidth between the base station and the gateway according to the fixed rate of the bandwidth detection data packet sent by the data transmitting end and the receiving rate fed back by the data receiving end.
  • this embodiment provides a method for guaranteeing a base station service quality in a wireless communication system, including:
  • Step 501 The base station sends a bandwidth detection data packet to the gateway at a fixed rate
  • Step 502 The gateway receives the bandwidth detection data packet, and collects the received rate to the secondary base station. Feedback
  • Step 503 The base station receives the receiving rate of the feedback from the gateway.
  • Step 504 The base station detects whether the transmission network is congested according to the transmission rate and the receiving rate of the bandwidth detection data packet, and acquires the available transmission bandwidth of the uplink data of the child base station to the gateway.
  • the step is specifically as follows: Suppose that the fixed rate of the bandwidth detection packet sent by the child base station is B1, the receiving rate of the gateway feedback is B2, and the difference between B1 and B2 is obtained to obtain the difference R. If R reaches the preset congestion threshold, it is determined. The transmission network is in a congested state, otherwise it is not congested.
  • Step 505 The base station controls the access request of the new service and/or the currently accessed service when the transmission network is congested.
  • the embodiment provides a method for guaranteeing a base station service quality in a wireless communication system, including:
  • Step 601 The base station triggers the gateway to send the bandwidth detection data packet to the child base station at a fixed rate.
  • the manner in which the child base station triggers the gateway includes the child base station sending a notification message to the gateway, where the message carries a fixed rate at which the requesting gateway sends the data packet.
  • Step 602 The base station receives the bandwidth detection data packet, and collects the receiving rate.
  • Step 603 The base station detects whether the transmission network is congested according to the transmission rate and the receiving rate of the bandwidth detection data packet, and acquires the available transmission bandwidth of the downlink data of the gateway to the child base station;
  • the step is specifically as follows: Suppose that the fixed rate of the bandwidth detection packet sent by the child base station is B1, the receiving rate sent by the gateway is B2, and the difference between B1 and B2 is obtained to obtain the difference R. If R reaches the preset congestion threshold, it is determined. The transmission network is in a congested state, otherwise it is not congested.
  • Step 604 The base station controls the access request of the new service and/or the currently accessed service when the transmission network is congested.
  • the conditions for transmitting the data packet between the trigger base station and the gateway include one or more of the following manners, but are not limited to the following: When the set timing time arrives, the trigger base station interacts with the gateway to obtain the congestion of the transmission network and the available bandwidth; or
  • the base station When receiving the request for the terminal to establish a new connection, the base station triggers the child base station to interact with the gateway to obtain the congestion of the transmission network and the available bandwidth; or
  • the base station When receiving the access request of the terminal, the base station triggers the child base station to interact with the gateway to obtain the congestion of the transmission network and the available bandwidth.
  • the base station when the transmission network is congested, controls the access request of the new service and/or the currently accessed service, and the specific performance is as follows:
  • the secondary base station adjusts the uplink air interface resources allocated to the terminal according to the bandwidth request of the terminal and the available bandwidth of the uplink transmission. Specifically, the sum of the uplink air interface resources allocated to the terminal should be smaller than the uplink transmission. The upper limit of the bandwidth, so the child base station can appropriately reduce the allocation of the uplink air interface resources. When the bandwidth of the uplink transmission network increases, the uplink air interface resources allocated to the terminal are appropriately increased.
  • the base station receives a request for a new connection sent by the terminal or other network element, if the available transmission bandwidth monitored by the child base station is less than the minimum rate required for the new connection, the base station refuses to establish a new connection; if the base station monitors The available transmission bandwidth meets the minimum rate required for the new connection, and the base station accepts the establishment of a new connection;
  • the method further includes:
  • the base station adds a cell prohibition identifier to the base station system message to indicate that the new user terminal is prohibited from accessing.
  • the cell prohibition identifier added in the child base station system message indicates that the new user terminal is allowed to access.
  • the new user terminal scans the base station system message, if the cell prohibition flag in the message to the child base station system is instructed to prohibit the new user terminal from accessing, the new user terminal abandons the access request to the child base station; otherwise, the user terminal may select The child base station accesses;
  • the child base station supports the self-organizing network function, the child base station informs the user terminal to transmit network congestion through the self-organizing network broadcast message, and after receiving the self-organizing network broadcast message sent by the child base station, the user terminal may choose to switch to another base station; After the terminal switches to another base station, if the base station is subsequently scanned, it is found that the transmission network indicates that it is no longer congested, and the handover back to the base station can be reselected.
  • the base station may also initiate a handover request, requesting the terminal to switch to another base station, and the terminal receiving the handover request scans the neighboring base station to find a target base station suitable for handover. Finally, the user equipment sends a handover response to the target base station and switches to the target base station.
  • the embodiment provides a method for guaranteeing quality of a base station in a wireless communication system.
  • a data packet for bandwidth detection is no longer used for detecting a data packet, but is based on actual between a base station and a gateway.
  • the interactive business data is detected as follows:
  • Step 701 The base station sends a service data packet to the gateway, and statistics the rate at which the service data packet is sent.
  • Step 702 The gateway receives the service data packet, and processes the service data packet to feed back the processing result data packet to the child base station.
  • Step 703 The base station receives the processing result data packet fed back by the gateway, and collects the receiving rate.
  • Step 704 The child base station detects whether the transmission network is congested according to the sending rate of the service data packet and the receiving rate of the feedback result data packet.
  • the step is specifically as follows: suppose the rate at which the child base station sends the service data packet is B11, and the receiving rate of the processing result packet fed back by the receiving gateway is B12, and the difference between B11 and B12 is obtained to obtain the difference R, if the R reaches the preset congestion. Threshold, it is determined that the transmission network is in a congested state, otherwise, it is not congested.
  • Step 705 The base station controls the access request of the new service and/or the currently accessed service when the transmission network is congested.
  • the embodiment provides a method for monitoring a transmission bandwidth in a wireless communication system.
  • a data packet for bandwidth detection is no longer used for detecting a bandwidth packet, but is based on actual interaction between a base station and a gateway.
  • the business data is tested as follows:
  • Step 801 The gateway sends a service data packet to the child base station, and collects a rate of sending the service data packet.
  • Step 802 The base station receives the service data packet, and processes the service data packet to feed back the processing result data packet to the gateway.
  • Step 803 The gateway receives the processing result data packet fed back by the child base station, and collects the receiving rate.
  • Step 804 The gateway reports the service data packet sending rate and the receiving rate to the child base station.
  • Step 805 The sending base station according to the sending rate of the service data packet The result of receiving the data packet is received, and detecting whether the transmission network is congested;
  • the step is specifically as follows: the rate at which the gateway sends the service data packet is B11, and the receiving rate of the processing result packet fed back by the secondary base station is B12, and the difference between B11 and B12 is obtained to obtain the difference R, if the R reaches the preset congestion threshold. Then, it is determined that the transmission network is in a congested state, otherwise, it is not congested.
  • Step 806 The base station controls the access request of the new service and/or the currently accessed service when the transmission network is congested.
  • the base station controls the access request of the new service and/or the currently accessed service when the transmission network is congested, and the specific performance is as follows:
  • the method further includes:
  • the base station prohibits the new user terminal from being accessed.
  • the cell prohibition identifier added in the base station system message indicates that the new user terminal is allowed to access.
  • the new user terminal scans the base station system message, if the cell prohibition flag in the message to the child base station system is instructed to prohibit the new user terminal from accessing, the user terminal abandons the access request to the child base station; otherwise, the user may select the child The base station performs access;
  • the child base station supports the self-organizing network function, the child base station informs the user terminal to transmit network congestion through the self-organizing network broadcast message, and after receiving the self-organizing network broadcast message sent by the child base station, the user terminal may choose to switch to another base station; After the terminal switches to another base station, if the base station is subsequently scanned, it is found that the transmission network indicates that it is no longer congested, and the handover back to the base station can be reselected.
  • the base station may also initiate a handover request, requesting the terminal to switch to another base station, and the terminal receiving the handover request scans the neighboring base station to find a target base station suitable for handover. Finally, the user equipment sends a handover response to the target base station and switches to the target base station.
  • the method of the present invention can determine the congestion status of the current transmission network by interacting with the data between the base station and the gateway, thereby making reasonable access to the new service request and the accessed service.
  • Control provides the basis, through the control of the child base station service, avoiding the loss of the data packet in the child base station, and ensuring the service quality of the child base station to a certain extent;
  • the method of the present invention can also obtain a current transmission available bandwidth according to a specific rate of bandwidth detection data packet transmission between the child base station and the network management system.
  • This method enables the child base station to adaptively allocate air interface resources according to the transmission bandwidth. For example, when the uplink bandwidth is reduced, the child base station can reduce the uplink bandwidth allocation to the air interface of the user terminal. When the bandwidth continues to decrease, the child base station can temporarily refuse to establish a new connection or access a new terminal according to the situation.
  • the child base station can adaptively allocate air interface resources according to the transmission bandwidth, avoid the loss of the data packet in the child base station, and reduce the delay of the terminal data access, thereby ensuring the service quality of the terminal accessing the child base station.
  • the present invention further provides a base station, including:
  • a congestion detection module configured to detect whether the current transmission network is congested when transmitting a data packet between the base station and the gateway;
  • the service control module is configured to control, when the congestion detection module detects the congestion of the transmission network, the access request for the new service and/or the currently accessed service.
  • the congestion detecting module is configured to: when the data is transmitted, the data sending end sends the data packet and the data receiving end receives the corresponding data packet, and detects whether the current transmission network is congested based on the sending and receiving rates of the data packet.
  • the congestion detecting module performs a difference between the sending rate and the receiving rate of the data packet to obtain a difference R, and determines whether the R reaches a preset congestion threshold, and if so, determines that the current transmission network is congested.

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  • Computer Networks & Wireless Communication (AREA)
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Description

一种无线通信系统中基站服务质量保证方法和装置 技术领域
本发明涉及通信技术领域, 尤其涉及一种无线通信系统中基站服务质 量保证方法和装置。 背景技术
无线通信系统中, 基站是指给终端提供服务的设备, 基站与终端之间 通过电磁波进行无线通信。 无线通信系统通过基站可以为一定地理范围的 终端提供无线覆盖, 这个地理范围称为小区。
通常, 无线通信系统为了能够大范围的为用户提供无线通信, 需要部 署覆盖范围大的基站。 这种基站通常称为宏基站(Macro BS ), 其覆盖的小 区通常称为宏区 (Macro Cell )。 同时, 无线通信系统考虑到用户的不同需 求和不同使用环境, 需要在某些环境或者场景下为用户提供更高质量的无 线通信服务, 一些覆盖范围小、 发射功率较低的基站因而被釆用。 这些小 型基站包括小基站( Micro BS )、 微基站 (Pico BS )和仔基站( Femto BS ) (也可以称为家庭基站、 个人基站)。 一个宏基站最大可覆盖方圓 2-3公里 的区域,而仔基站的覆盖范围不超过 30米。由于它们覆盖范围的巨大差别, 在宏基站的覆盖范围内可能部署有大量 (几百甚至上千) 的仔基站以改善 室内的通信服务质量, 如图 1所示。
随着无线空口技术的发展, 下一代无线基站拥有高速数据传输能力以 满足人们对速率日益增长的需求, 如目前的 LTE以及 WiMAX标准可达到 几十兆到几百兆的空口带宽。 空口的高速率带来了对基站与网关 /基站控制 器之间的传输速率的要求, 如图 2所示, 基站(eNodeB, eNB )与服务网 关( Serving GW, S-GW )之间的传输连接必须支持基站上行及下行数据的 转发。 基站与网关 /基站控制器之间的连接通常釆用 E1/STM-1/以太网接口 使用光传输接入的方式, 如 SDH、 GPON等。 在系统部署时, 根据基站与 网关 /基站控制器的流量需求, 该专用传输连接被配置成能满足基站与网关 / 基站控制器之间的数据传输。
而在家庭基站的环境中, 例如: 仔基站, 如图 3 所示, 仔基站通过公 共电话网接入, 如住宅内部的 DSL网线。 仔基站与仔基站网关之间的传输 要经过 DSL的传输。 家庭 DSL网线通常仅能提供几兆的带宽, 而且这几兆 的带宽同时还要为家庭中通过有线方式接入的笔记本或其他终端设备提供 连接服务。 此外 DSL的真实带宽往往还会受到骨干网络拥塞以及小区流量 的影响, 如邻居的 P2P下载就会占掉小区出口的大部分带宽。 因此, 能用 于仔基站与仔基站网关之间传输上行及下行数据的带宽通常远小于空口带 宽并且时常波动。 由此可见, 仔基站的空口带宽与传输带宽之间存在较大 的差异, 当传输带宽拥塞时数据包极有可能在仔基站丟失。 当然, 宏基站 在进行大量的数据业务时, 也可能会存在上述问题。 发明内容
有鉴于此, 本发明提供一种无线通信系统中基站服务质量保证方法和 装置, 用以解决现有技术中基站尤其是家庭基站传输带宽占用波动较大, 导致数据包易丟失的问题。
为解决上述技术问题, 具体的, 本发明提供一种无线通信系统中基站 服务质量保证方法, 包括:
基站与网关间传输数据包, 所述基站检测当前传输网络是否拥塞, 若 是, 对新业务的接入请求和 /或当前已接入的业务进行控制。
其中, 所述基站检测当前传输网络是否拥塞的方式包括:
所述基站获取传输数据时数据发送端发送数据包和数据接收端接收对 应数据包的速率, 并基于所述数据包的发送和接收速率检测当前传输网络 是否拥塞。
其中, 所述基站基于所述数据包的发送和接收速率检测当前传输网络 是否拥塞具体包括:
所述基站将所述数据包的发送速率和接收速率做差, 得到一差值 R, 并判断该 R是否达到预设的拥塞门限, 若是, 判定当前传输网络拥塞。
本发明所述方法中, 所述基站获取传输数据时数据发送端发送数据包 和数据接收端接收对应数据包的速率包括下述方式中的一种:
方式一, 基站以固定速率向网关发送带宽检测数据包, 并接收所述网 关反馈的带宽检测数据包接收速率消息; 或者, 方式二, 基站触发网关以 固定速率向基站发送带宽检测数据包, 基站获取自身接收所述带宽检测数 据包的速率; 或者, 方式三, 基站与网关间交互业务数据包, 所述基站统 计自身发送和接收业务数据包的速率, 并接收网关上报的网关发送和接收 业务数据包的速率消息。
进一步的, 当釆用所述方式一或者方式二时, 所述基站与网关间传输 数据包的触发条件包括下述方式中的一种或几种:
设定的定时时间到达时; 基站接收到终端建立新连接的请求时; 或者, 基站接收到终端的接入请求时。
进一步的, 在釆用所述方式一或方式二时, 所述基站还根据数据发送 端发送带宽检测数据包的固定速率和数据接收端反馈的接收速率获取基站 与网关间当前的传输可用带宽。
本发明所述方法中所述基站对新业务的接入请求和 /或当前已接入的业 务进行控制具体包括:
所述基站检测到当前传输网络拥塞后, 对当前已接入的业务进行控制 包括:
在基站上行调度被触发时, 所述基站根据当前传输可用带宽和终端的 带宽请求为所述终端分配上行空口资源, 其中, 分配的上行空口资源总和 小于等于当前可用传输带宽的上限。
所述基站检测到当前传输网络拥塞后, 对新业务的接入请求进行控制 包括:
当基站接收到终端建立新连接的请求时, 所述基站判断当前的传输可 用带宽是否支持所述新连接请求所需要的最小传输速率, 若是, 接受终端 建立新连接的请求, 否则, 拒绝该连接请求。
所述基站检测到当前传输网络拥塞后, 对新业务的接入请求进行控制 还包括: 所述基站在系统消息中添加小区禁止标识, 用以指示禁止终端接 入。
所述基站检测到当前传输网络拥塞后, 对当前已接入的业务进行控制 还包括: 所述基站向当前已经接入的终端广播消息, 通知各终端当前传输 网络拥塞, 各终端可选择切换到其他基站; 或者,
所述基站在当前拥塞的传输网络不能支持当前已经接入的终端的业务 时, 向部分终端发送通知终端进行基站切换的消息。
本发明还提供一种基站, 包括:
拥塞检测模块, 用于在基站与网关间传输数据包时, 检测当前传输网 络是否拥塞;
业务控制模块, 用于在所述拥塞检测模块检测到传输网络拥塞时, 对 新业务的接入请求和 /或当前已接入的业务进行控制。
其中, 所述拥塞检测模块获取传输数据时数据发送端发送数据包和数 据接收端接收对应数据包的速率, 并基于所述数据包的发送和接收速率检 测当前传输网络是否拥塞。
与现有技术相比, 本发明有益效果如下:
本发明所述方案, 通过基站与网关间的数据交互, 即可对当前传输带 宽的拥塞状态进行判断, 进而为新业务请求的接入以及已接入的业务进行 合理的控制提供依据, 通过对基站业务的控制, 避免了数据包在基站的丟 失, 从一定程度上保证了基站的服务质量;
进一步的, 本发明所述方案, 还可以根据基站与网关间进行特定速率 的带宽检测数据包的传输, 获取当前传输可用带宽, 这种方法使得基站能 自适应的根据传输带宽分配空口资源, 如当上行带宽降低时, 基站可减少 对用户终端的空口的上行带宽分配, 当带宽继续降低时, 基站可根据情况 暂时拒绝建立新的连接或是接入新的终端, 这种方式使得基站能自适应的 根据传输带宽分配空口资源, 避免数据包在仔基站的丟失, 降低终端数据 访问的时延, 从而保证终端接入基站的服务质量。 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 实施例或现有技术描述中所需要使用的附图作一简单地介绍, 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性的前提下, 还可以根据这些附图获得其他的 附图。
图 1为现有技术中无线通信系统结构部署示意图;
图 2为现有技术中 LTE的网络结构示意图;
图 3为现有技术中仔基站网络结构示意图;
图 4为本发明提供的一种无线通信系统中基站服务质量保证方法流程 示意图;
图 5 为本发明实施例一提供的无线通信系统中基站服务质量保证方法 流程示意图;
图 6为本发明实施例二提供的无线通信系统中基站服务质量保证方法 流程示意图; 图 7为本发明实施例三提供的无线通信系统中基站服务质量保证方法 流程示意图;
图 8为本发明实施例四提供的无线通信系统中基站服务质量保证方法 流程示意图;
图 9为本发明提供的基站结构示意图。 具体实施方式
下面将结合本发明实施例中的附图, 对本发明实施例中的技术方案进 行清楚、 完整地描述, 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 有做出创造性劳动前提下所获得的所有其他实施例, 都属于本发明保护的 范围。
为了解决现有技术中存在的问题, 本发明提供一种无线通信系统中基 站服务质量保证方法和装置, 所述方案通过检测基站与网关之间的传输带 宽是否拥塞, 为基站对新业务请求的接入以及已接入的业务进行合理的控 制提供依据, 进而保证了基站的服务质量。
具体的, 如图 4所示, 本发明提供一种无线通信系统中基站服务质量 保证方法, 包括:
步骤 401、 基站与网关间传输数据包;
步骤 402、 基站检测当前传输网络是否拥塞, 若是, 执行步骤 403 ; 否 则, 执行步骤 404;
步骤 403、基站对新业务的接入请求和 /或当前已接入的业务进行控制, 结束当前流程;
步骤 404、 基站进行正常的业务操作。
上述步骤 402中, 所述基站检测当前传输网络是否拥塞的方式包括: 所述基站获取传输数据时数据发送端发送数据包和数据接收端接收对 应数据包的速率, 并基于所述数据包的发送和接收速率检测当前传输网络 是否拥塞。
进一步的, 所述基站获取传输数据时数据发送端发送数据包和数据接 收端接收对应数据包的速率包括下述方式中的一种:
方式一, 基站以固定速率向网关发送带宽检测数据包, 并接收所述网 关反馈的带宽检测数据包接收速率消息; 或者, 方式二, 基站触发网关以 固定速率向基站发送带宽检测数据包, 基站获取自身接收所述带宽检测数 据包的速率; 或者, 方式三, 基站与网关间交互业务数据包, 所述基站统 计自身发送和接收业务数据包的速率, 并接收网关上报的网关发送和接收 业务数据包的速率消息。
其中, 当釆用所述方式一或者方式二时, 所述基站与网关间传输数据 包的触发条件包括下述方式中的一种或几种:
设定的定时时间到达时; 基站接收到终端建立新连接的请求时; 或者, 基站接收到终端的接入请求时。
进一步的, 在釆用所述方式一或方式二时, 所述基站还根据数据发送 端发送带宽检测数据包的固定速率和数据接收端反馈的接收速率获取基站 与网关间当前的传输可用带宽。
下面根据图 5〜图 8给出本发明几个较佳的实施例,并结合对实施例的 描述, 进一步给出本发明的技术细节, 使其能够更好地说明本发明所述方 法的具体实现过程, 为了清楚描述, 下面以仔基站为例进行说明。
实施例一
如图 5 所示, 本实施例提供一种无线通信系统中基站服务质量保证方 法, 包括:
步骤 501、 仔基站以固定速率向网关发送带宽检测数据包;
步骤 502、 网关接收带宽检测数据包, 并统计得到接收速率后向仔基站 反馈;
步骤 503、 仔基站接收到网关反馈的接收速率;
步骤 504、仔基站根据带宽检测数据包的发送速率和接收速率,检测传 输网络是否拥塞, 并获取仔基站到网关的上行数据的传输可用带宽;
该步骤具体为: 假设仔基站发送带宽检测数据包的固定速率的为 B1 , 网关反馈的接收速率为 B2,将 B1与 B2做差得到差值 R,若 R达到预设的 拥塞门限, 则判定传输网络处于拥塞状态, 否则, 不拥塞。
步骤 505、 仔基站在传输网络拥塞时, 对新业务的接入请求和 /或当前 已接入的业务进行控制。
实施例二
如图 6所示, 本实施例提供一种无线通信系统中基站服务质量保证方 法, 包括:
步骤 601、 仔基站触发网关以固定速率向仔基站发送带宽检测数据包; 其中, 仔基站触发网关的方式包括仔基站向网关发送通知消息, 消息 中携带请求网关发送数据包的固定速率。
步骤 602、 仔基站接收带宽检测数据包, 并统计接收速率;
步骤 603、仔基站根据带宽检测数据包的发送速率和接收速率,检测传 输网络是否拥塞, 并获取网关到仔基站的下行数据的传输可用带宽;
该步骤具体为: 假设仔基站发送带宽检测数据包的固定速率的为 B1 , 网关发送的接收速率为 B2,将 B1与 B2做差得到差值 R,若 R达到预设的 拥塞门限, 则判定传输网络处于拥塞状态, 否则, 不拥塞。
步骤 604、 仔基站在传输网络拥塞时, 对新业务的接入请求和 /或当前 已接入的业务进行控制。
上述实施例一、 二中, 触发仔基站与网关间传输数据包的条件包括下 述方式的一种或几种, 但不仅限于以下几种: 设定的定时时间到达时, 触发仔基站与网关交互, 获取传输网络拥塞 情况及可用带宽; 或者,
仔基站接收到终端建立新连接的请求时, 触发仔基站与网关交互, 获 取传输网络拥塞情况及可用带宽; 或者,
仔基站接收到终端的接入请求时, 触发仔基站与网关交互, 获取传输 网络拥塞情况及可用带宽。
进一步的, 上述实施例一、 二中, 仔基站在传输网络拥塞时, 对新业 务的接入请求和 /或当前已接入的业务进行控制, 具体表现为:
当检测结果为上行传输网络拥塞时:
若仔基站的上行调度被触发, 则仔基站根据终端的带宽请求和上行传 输可用带宽, 合理的调整分配给终端的上行空口资源; 具体的说, 分配给 终端的上行空口资源总和应当小于上行传输带宽的上限, 因此仔基站可适 当降低上行空口资源的分配, 当上行传输网络带宽增加时, 再适当的增加 分配给终端的上行空口资源;
若仔基站收到终端或其他网元发送的创建新连接的请求时, 如果仔基 站监测到的可用传输带宽小于新连接需要的最小速率, 则仔基站拒绝建立 新连接; 如果仔基站监测到的可用传输带宽满足新连接需要的最小速率, 则仔基站接受建立新连接;
当检测结果为上行传输网络拥塞时, 还包括:
仔基站通过在仔基站系统消息中添加小区禁止标识, 指示禁止新的用 户终端接入, 当传输带宽拥塞消失时, 在仔基站系统消息中添加的小区禁 止标识指示允许新的用户终端接入; 其中, 新的用户终端在扫描仔基站系 统消息时, 若扫描到仔基站系统消息中的小区禁止标识指示为禁止新用户 终端接入时, 放弃向该仔基站发起接入请求; 否则, 可选择该仔基站进行 接入; 当仔基站支持自组织网络功能时, 仔基站通过自组织网络广播消息告 知用户终端传输网络拥塞, 用户终端收到仔基站发送的自组织网络广播消 息后, 可选择切换到其他基站; 当然, 当终端切换到其他基站后, 若后续 扫描所述仔基站时, 发现传输网络指示为不再拥塞时, 可重新选择切换回 仔基站。
当传输网络拥塞到不能支持现有仔基站连接时, 仔基站还可主动发起 切换请求, 请求终端切换到其他基站, 接收到切换请求的终端对邻区基站 进行扫描, 找出适合切换的目标基站, 最后用户设备发送切换响应给目标 基站, 并切换到目标基站。
实施例三
如图 7所示, 本实施例提供一种无线通信系统中基站服务质量保证方 法, 该实施例中, 进行带宽检测的数据包不再釆用带宽检测数据包, 而是 根据基站与网关间实际交互的业务数据进行检测, 具体如下:
步骤 701、仔基站向网关发送业务数据包, 并统计发送业务数据包的速 率;
步骤 702、 网关接收所述业务数据包, 并对业务数据包进行处理后向仔 基站反馈处理结果数据包;
步骤 703、 仔基站接收网关反馈的处理结果数据包, 并统计接收速率; 步骤 704、仔基站根据业务数据包的发送速率和反馈结果数据包的接收 速率, 检测传输网络是否拥塞;
该步骤具体为:假设仔基站发送业务数据包的速率的为 B11 ,接收网关 反馈的处理结果数据包的接收速率为 B12,将 B11与 B12做差得到差值 R, 若 R达到预设的拥塞门限, 则判定传输网络处于拥塞状态, 否则, 不拥塞。
步骤 705、 仔基站在传输网络拥塞时, 对新业务的接入请求和 /或当前 已接入的业务进行控制。 实施例四
如图 8所示, 本实施例提供一种无线通信系统中传输带宽监测方法, 该实施例中, 进行带宽检测的数据包不再釆用带宽检测数据包, 而是根据 基站与网关间实际交互的业务数据进行检测, 具体如下:
步骤 801、 网关向仔基站发送业务数据包, 并统计发送业务数据包的速 率;
步骤 802、仔基站接收所述业务数据包, 并对业务数据包进行处理后向 网关反馈处理结果数据包;
步骤 803、 网关接收仔基站反馈的处理结果数据包, 并统计接收速率; 步骤 804、 网关将业务数据包发送速率和接收速率上报至仔基站; 步骤 805、仔基站根据业务数据包的发送速率和反馈结果数据包的接收 速率, 检测传输网络是否拥塞;
该步骤具体为:假设网关发送业务数据包的速率的为 B11 ,仔基站反馈 的处理结果数据包的接收速率为 B12, 将 B11与 B12做差得到差值 R, 若 R达到预设的拥塞门限, 则判定传输网络处于拥塞状态, 否则, 不拥塞。
步骤 806、 仔基站在传输网络拥塞时, 对新业务的接入请求和 /或当前 已接入的业务进行控制。
进一步的, 上述实施例三、 四中, 仔基站在传输网络拥塞时, 对新业 务的接入请求和 /或当前已接入的业务进行控制, 具体表现为:
当检测结果为上行传输网络拥塞时, 还包括:
仔基站通过在基站系统消息中添加小区禁止标识, 指示禁止新的用户 终端接入, 当传输带宽拥塞消失时, 在基站系统消息中添加的小区禁止标 识指示允许新的用户终端接入; 其中, 新的用户终端在扫描仔基站系统消 息时, 若扫描到仔基站系统消息中的小区禁止标识指示为禁止新用户终端 接入时, 放弃向该仔基站发起接入请求; 否则, 可选择该仔基站进行接入; 当仔基站支持自组织网络功能时, 仔基站通过自组织网络广播消息告 知用户终端传输网络拥塞, 用户终端收到仔基站发送的自组织网络广播消 息后, 可选择切换到其他基站; 当然, 当终端切换到其他基站后, 若后续 扫描所述仔基站时, 发现传输网络指示为不再拥塞时, 可重新选择切换回 仔基站。
当传输网络拥塞到不能支持现有仔基站连接时, 仔基站还可主动发起 切换请求, 请求终端切换到其他基站, 接收到切换请求的终端对邻区基站 进行扫描, 找出适合切换的目标基站, 最后用户设备发送切换响应给目标 基站, 并切换到目标基站。
综上所述, 本发明所述方法, 通过仔基站与网关间的数据交互, 即可 对当前传输网络的拥塞状态进行判断, 进而为新业务请求的接入以及已接 入的业务进行合理的控制提供依据, 通过对仔基站业务的控制, 避免了数 据包在仔基站的丟失, 从一定程度上保证了仔基站的服务质量;
进一步的, 本发明所述方法, 还可以根据仔基站与网管间进行特定速 率的带宽检测数据包的传输, 获取当前传输可用带宽, 这种方法使得仔基 站能自适应的根据传输带宽分配空口资源, 如当上行带宽降低时, 仔基站 可减少对用户终端的空口的上行带宽分配, 当带宽继续降低时, 仔基站可 根据情况暂时拒绝建立新的连接或是接入新的终端, 这种方式使得仔基站 能自适应的根据传输带宽分配空口资源, 避免数据包在仔基站的丟失, 降 低终端数据访问的时延, 从而保证终端接入仔基站的服务质量。
如图 9所示, 本发明还提供一种基站, 包括:
拥塞检测模块, 用于在基站与网关间传输数据包时, 检测当前传输网 络是否拥塞;
业务控制模块, 用于在所述拥塞检测模块检测到传输网络拥塞时, 对 新业务的接入请求和 /或当前已接入的业务进行控制。 其中, 所述拥塞检测模块, 获取传输数据时数据发送端发送数据包和 数据接收端接收对应数据包的速率, 并基于所述数据包的发送和接收速率 检测当前传输网络是否拥塞。
进一步的, 所述拥塞检测模块将所述数据包的发送速率和接收速率做 差, 得到一差值 R, 并判断该 R是否达到预设的拥塞门限, 若是, 判定当 前传输网络拥塞。 本发明的精神和范围。 这样, 倘若本发明的这些修改和变型属于本发明权 利要求及其等同技术的范围之内, 则本发明也意图包含这些改动和变型在 内。

Claims

权利要求书
1、 一种无线通信系统中基站服务质量保证方法, 其特征在于, 包括: 基站与网关间传输数据包, 所述基站检测当前传输网络是否拥塞, 若 是, 对新业务的接入请求和 /或当前已接入的业务进行控制。
2、 如权利要求 1所述的方法, 其特征在于, 所述基站检测当前传输网 络是否拥塞的方式包括:
所述基站获取传输数据时数据发送端发送数据包和数据接收端接收对 应数据包的速率, 并基于所述数据包的发送和接收速率检测当前传输网络 是否拥塞。
3、 如权利要求 2所述的方法, 其特征在于, 所述基站基于所述数据包 的发送和接收速率检测当前传输网络是否拥塞具体包括:
所述基站将所述数据包的发送速率和接收速率做差, 得到一差值 R, 并判断该 R是否达到预设的拥塞门限, 若是, 判定当前传输网络拥塞。
4、 如权利要求 2或 3所述的方法, 其特征在于, 所述基站获取传输数 据时数据发送端发送数据包和数据接收端接收对应数据包的速率包括下述 方式中的一种:
方式一, 基站以固定速率向网关发送带宽检测数据包, 并接收所述网 关反馈的带宽检测数据包接收速率消息; 或者,
方式二, 基站触发网关以固定速率向基站发送带宽检测数据包, 基站 获取自身接收所述带宽检测数据包的速率; 或者,
方式三, 基站与网关间交互业务数据包, 所述基站统计自身发送和接 收业务数据包的速率, 并接收网关上报的网关发送和接收业务数据包的速 率消息。
5、 如权利要求 4所述的方法, 其特征在于, 当釆用所述方式一或者方 或几种:
设定的定时时间到达时; 基站接收到终端建立新连接的请求时; 或者, 基站接收到终端的接入请求时。
6、 如权利要求 4所述的方法, 其特征在于, 在釆用所述方式一或方式 二时, 所述基站还根据数据发送端发送带宽检测数据包的固定速率和数据 接收端反馈的接收速率获取基站与网关间当前的传输可用带宽。
7、 如权利要求 6所述的方法, 其特征在于, 所述基站检测到当前传输 网络拥塞后, 对当前已接入的业务进行控制包括:
在基站上行调度被触发时, 所述基站根据当前传输可用带宽和终端的 带宽请求为所述终端分配上行空口资源, 其中, 分配的上行空口资源总和 小于等于当前可用传输带宽的上限。
8、 如权利要求 6所述的方法, 其特征在于, 所述基站检测到当前传输 网络拥塞后, 对新业务的接入请求进行控制包括:
当基站接收到终端建立新连接的请求时, 所述基站判断当前的传输可 用带宽是否支持所述新连接请求所需要的最小传输速率, 若是, 接受终端 建立新连接的请求, 否则, 拒绝该连接请求。
9、 如权利要求 1、 2或 3所述的方法, 其特征在于, 所述基站检测到 当前传输网络拥塞后, 对新业务的接入请求进行控制还包括: 所述基站在 系统消息中添加 'J、区禁止标识, 用以指示禁止终端接入。
10、 如权利要求 1、 2或 3所述的方法, 其特征在于, 所述基站检测到 当前传输网络拥塞后, 对当前已接入的业务进行控制还包括:
所述基站向当前已经接入的终端广播消息, 通知各终端当前传输网络 拥塞, 各终端可选择切换到其他基站; 或者,
所述基站在当前拥塞的传输网络不能支持当前已经接入的终端的业务 时, 向部分终端发送通知终端进行基站切换的消息。
11、 一种基站, 其特征在于, 包括:
拥塞检测模块, 用于在基站与网关间传输数据包时, 检测当前传输网 络是否拥塞;
业务控制模块, 用于在所述拥塞检测模块检测到传输网络拥塞时, 对 新业务的接入请求和 /或当前已接入的业务进行控制。
12、 如权利要求 11所述的基站, 其特征在于, 所述拥塞检测模块获取 传输数据时数据发送端发送数据包和数据接收端接收对应数据包的速率, 并基于所述数据包的发送和接收速率检测当前传输网络是否拥塞。
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