CN101159516B - Method of testing terminal channel gain characteristic - Google Patents

Method of testing terminal channel gain characteristic Download PDF

Info

Publication number
CN101159516B
CN101159516B CN 200710182032 CN200710182032A CN101159516B CN 101159516 B CN101159516 B CN 101159516B CN 200710182032 CN200710182032 CN 200710182032 CN 200710182032 A CN200710182032 A CN 200710182032A CN 101159516 B CN101159516 B CN 101159516B
Authority
CN
China
Prior art keywords
terminal
base station
power
subchannel
step
Prior art date
Application number
CN 200710182032
Other languages
Chinese (zh)
Other versions
CN101159516A (en
Inventor
胡杨
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to CN 200710182032 priority Critical patent/CN101159516B/en
Publication of CN101159516A publication Critical patent/CN101159516A/en
Application granted granted Critical
Publication of CN101159516B publication Critical patent/CN101159516B/en

Links

Abstract

A method for testing the gain characteristics of terminal subchannels is provided, which comprises: after determining the access of the terminal to the base station, the road loss is increased to allow the measurement of distance between the terminal and the base station unsuccessful, and the current uplink transmission power of the terminal is used as the reference power; the base station calculates the bandwidth capacity of each uplink subchannel based on the system configuration parameters; the road loss is reduced to allow the access of the terminal to the base station, and the base station distributes the terminal with the calculated bandwidth capacity of the uplink subchannel; the base station increases the transmission power of the terminal until the transmission power reaches the maximum limit, and the current transmission power of the terminal is used as measured power; and the basic power and the measured power are compared to judge whether the terminal has the subchannel gain characteristics based on the comparison result. The invention can evaluate whether the WiMAX terminal has the subchannel gain characteristics, without using the special radio-frequency test instrument and complex measurement of radio-frequency signal power. Additionally, the invention has no strict environmental requirement, is convenient to operate, and has high test efficiency.

Description

测试终端子信道增益特性的方法 Terminal subchannel gain characteristic test method

技术领域 FIELD

[0001] 本发明涉及通信领域,并且特别地,涉及一种测试终端子信道增益特性的方法。 [0001] The present invention relates to the field of communications, and in particular, relates to a method for testing a terminal subchannel gain characteristics.

背景技术 Background technique

[0002] 随着微波接入全球互通(Worldwide Interoperability forMicrowave Access,WiMAX)产品与技术的成熟,WiMAX网络的覆盖与优化问题日益突出。 [0002] As the WiMAX (Worldwide Interoperability forMicrowave Access, WiMAX) coverage and optimization of mature products and technologies, WiMAX networks have become increasingly prominent. 然而,在现实应用中,反向受限的情况则是比较常见的,根据IEEE 802. 16协议,在没有功控指令的情况下,WiMAX终端保持发射功率谱密度不变,也就是说,终端的发射功率随基站分配给它的子信道数量的变化而按比例变化,分配的子信道数量少,终端发射功率也减小,这样,就必须通过功控提升终端的发射功率密度,使得当基站给终端分配较少的子信道数量的同时,终端的发射功率能够得到提升。 However, in practical application, the reverse situation is limited more common, in accordance with IEEE 802. 16 protocol, in the case without power control instruction, WiMAX terminal transmit power spectral density remains constant, i.e., the terminal the transmit power with the base station number of subchannels allocated to it changes proportionally change the number of subchannels allocated less, terminal transmit power is reduced, so that it is necessary to enhance the power density of the transmit power control by a terminal, such that when the base station while the number of subchannels allocated to the smaller terminal, transmit power of the terminal can be improved. 因此,上行信道的平均子载波功率会有较大提升,进而得到一个最大的子载波平均功率,这利于基站侧对上行信号的检测和解调,从而避免出现反向受限的情况。 Thus, the average power of the uplink sub-carrier channel will be greatly improved, and thus to obtain a maximum average power of the subcarriers, which facilitates the detection of the uplink signal and demodulating a base station side, thereby to avoid reverse appears limited.

[0003] 这样,对于终端而言,在上行最大发射功率有限的情况下,能否将全部发射功率集中到一个子信道上就成为问题的关键。 [0003] Thus, for the terminal, at the maximum uplink transmission power limited situation, the ability to focus on all transmit power to a subchannel become key issues. 因此,对WiMAX终端是否具备子信道增益特性进行测试和验证十分重要,然而,由于动态带宽分配机制的存在和子信道所包含子载波的频率离散性,简单有效并且准确直观的WiMAX终端子信道增益特性测试技术在目前仍属空白。 Therefore, the WiMAX terminal has subchannel gain characteristic test and validate important, however, since the frequency of presence of discrete subcarriers and subchannels dynamic bandwidth allocation mechanism contained, simple, effective and accurate and intuitive subchannel gain characteristic of the WiMAX terminal in the current testing technology is still a blank.

发明内容 SUMMARY

[0004] 考虑到上述问题而做出本发明,为此,本发明的主要目的在于提供一种测试终端 [0004] The present invention is made in consideration of the above problems, therefore, the main object of the present invention is to provide a test terminal

子信道增益特性的方案,其能够简单快速地判定WiMAX终端是否具备相应的子信道增益能 Program subchannel gain characteristics, which can be determined quickly and easily WiMAX terminal has a respective subchannel gains can

力,使其能够在实际网络环境中使用并避免出现上行受限的问题。 Force, and it can be used to avoid the problem of limited upstream appear in the actual network environments.

[0005] 根据本发明的实施例,提供了一种测试终端子信道增益特性的方法。 [0005] According to an embodiment of the present invention, there is provided a method for testing a terminal subchannel gain characteristics.

[0006] 该方法包括:步骤S102,确认终端能够接入基站后,增大路损,使终端与所述基站 [0006] The method comprises: step S102, after the confirmation terminal to access the base station, the path loss is increased, so that the terminal and the base station

测距失败,将此时终端的发射功率作为基准功率记录;步骤S104,基站根据系统配置参数 Ranging failure, the transmit power of the terminal at this time as a reference recording power; step S104, the base station system configuration parameters

计算单个上行子信道的带宽容量;步骤S106,通过减小路损使终端接入基站,基站对终端 Calculate a single upstream bandwidth capacity of subchannels; step S106, so that the path loss by reducing the terminal accesses the base station, the terminal

分配计算得出的单个上行子信道的带宽容量;步骤S108,基站通过向终端发送功率上升指 Calculated allocation of uplink bandwidth capacity of a single subchannel; step S108, the base station transmits to the terminal through the power ramp-up means

令提高终端的发射功率,直到该发射功率不能提高为止,并将此时终端的发射功率作为测 So increase the transmission power of the terminal, until the transmit power can not be increased so far, and at this time as measured transmit power of terminal

量功率记录;以及步骤S110,将基准功率和测量功率进行对比,在基准功率与测量功率的 Recording the amount of power; and a step S110, the measured power and the reference power are compared with the measured power of the reference power

对比结果为相等的情况下,判断终端具备子信道增益特性。 The comparison result is equal, the terminal includes a subchannel gain characteristic determination.

[0007] 其中,在步骤S106中,基站以先时域后频域的方式向终端按帧主动分配带宽容 [0007] wherein, in the step S106, the base station as to the time and frequency domain after the first active frame by receiving the bandwidth allocation to the terminal

[0008] 此外,在步骤S102、步骤S104、步骤S106、和步骤S108,保证终端与基站之间存在数据传输。 [0008] Further, in step S102, step S104, step S106, step S108, to ensure the presence of data transmission between the terminal and the base station. 此时,在步骤S106中,终端利用带宽容量传输特定调制编码方式下的数据包来保证与基站的应用服务器之间存在数据传输。 In this case, in step S106, the terminal uses the packet data transmission bandwidth capacity of a particular modulation and coding scheme to guarantee data transmission between the base station and the application server. 其中,上述特定调制编码方式是四相移相键控,编码率是1/2。 Wherein the specific modulation and coding scheme is quadrature phase shift keying, the coding rate is 1/2.

3[0009] 另外,该方法中的上述系统参数至少包括:傅立叶变化点数、子信道偏置方式、上下行符号比。 3 [0009] Further, the system parameters of the method comprises at least: Fourier transform points, subchannel offset mode, the ratio of downlink symbols.

[0010] 通过本发明的上述技术方案,能够评估WiMAX终端是否具备子信道增益特性;并且,在实现时不涉及专用射频测试仪器的使用和对射频信号功率的复杂测量,对环境要求低,操作简便易行,具有很高的测试效率。 [0010] By the above aspect of the present invention can assess whether the WiMAX terminal includes a subchannel gain characteristic; and does not involve the use of dedicated and complex RF test instruments measuring RF signal power in achieving low environmental requirements, operation easy to use with high test efficiency.

附图说明 BRIEF DESCRIPTION

[0011] 此处所说明的附图用来提供对本发明的进一步理解,构成本申请的一部分,本发明的示意性实施例及其说明用于解释本发明,并不构成对本发明的不当限定。 [0011] The drawings described herein are provided for further understanding of the present invention, constitute a part of this application, exemplary embodiments of the present invention are used to explain the present invention without unduly limiting the present invention. 在附图中: [0012] 图1是根据本发明实施例的测试终端子信道增益特性的方法的流程图; [0013] 图2是实现根据本发明实施例的测试终端子信道增益特性的方法的测试环境实例的框图;以及 In the drawings: [0012] FIG. 1 is a flowchart of a method for testing a terminal subchannel gain characteristic of the embodiment of the present invention; [0013] FIG. 2 is a method for testing a terminal implemented subchannel gain characteristic according to an embodiment of the present invention a block diagram of an example of a test environment; and

[0014] 图3是实现根据本发明实施例的测试终端子信道增益特性的方法。 [0014] FIG. 3 is a method for testing a terminal implemented embodiment subchannel gain characteristics according to an embodiment of the present invention. 具体实施方式 Detailed ways

[0015] 在本实施例中,提供了一种测试终端子信道增益特性的方法。 [0015] In the present embodiment, there is provided a method for testing a terminal subchannel gain characteristics. 其中,该方法将终端使用的子信道个数予以量化,在此基础上调整并测试终端支持的上行发射功率的大小,确认该终端是否具备子信道增益特性。 Wherein, the method will be used by the terminal number of subchannels quantization, resize and tested on this basis supports the terminal uplink transmission power, to confirm whether the terminal includes a subchannel gain characteristics. 在本文中,终端子信道增益特性是指终端是否具备子信道满功率发射能力,即,终端将全部功率集中到基站(BS)对其分配的最少一个子信道所含子载波上来的能力。 As used herein, refers to a terminal subchannel gain characteristic subchannel terminal has transmitted at full power capability, i.e., full power will focus on the terminal to the base station (BS) a minimum capacity of subchannels allocated thereto subcarriers contained up.

[0016] 如图1所示,根据本发明实施例的测试终端子信道增益特性的方法包括:步骤S102,确认终端能够接入基站后,不断增大路损,使终端与基站测距(Range)失败,将此时终端的上行发射功率作为基准功率记录;步骤S104,基站根据系统配置参数计算单个上行子信道的带宽容量;步骤S106,通过减小路损使终端接入基站,基站对终端分配(步骤S104 中)计算得出的单个上行子信道的带宽容量;步骤S108,基站提高终端的发射功率,直到提高的发射功率不能提高为止(例如,达到了终端的最大发射功率),并将此时终端的发射功率作为测量功率记录;以及步骤S110,将基准功率和测量功率进行对比,根据对比结果判断终端是否具备子信道增益特性。 [0016] 1, according to the method of testing a terminal subchannel gain characteristic of the embodiment of the present invention comprises: step S102, after the confirmation terminal to access the base station, increasing path loss, ranging with the base station that the terminal (Range) fails, at this time the uplink transmit power of the terminal as a reference recording power; step S104, the base station calculates a single upstream bandwidth capacity of a subchannel according to a system configuration parameter; step S106, so that the path loss by reducing the terminal accesses the base station, the base station assigned to the terminal (step S104) calculated upstream bandwidth capacity of a single subchannel; step S108, the base station increase the transmission power of the terminal, until the increased transmission power can not be increased so far (e.g., reached the maximum transmit power of the terminal), and this transmit power at the terminal as the recording power measurement; and step S110, the measured power and the reference power are compared, it is judged whether the terminal includes a subchannel gain characteristics according to comparison results.

[0017] 其中,在步骤S106中,基站以先时域后频域的方式向终端按帧主动分配带宽容量容量,并且不响应终端发出的带宽请求。 [0017] wherein, in the step S106, as to the base station after the first time and frequency domain in frame capacity bandwidth capacity allocated to the active terminal, and does not respond to the bandwidth request sent from the terminal.

[0018] 另外,在步骤S108中,基站通过向终端发送功率上升指令来提高终端的发射功率。 [0018] Further, in step S108, the base station sends commands to the terminal rises to increase the transmission power of the power of the terminal.

[0019] 在步骤SllO中,在基准功率与测量功率的对比结果为相等的情况下,则终端具备子信道增益特性。 [0019] In step SllO, the comparison result of the reference power and the measured power is equal to the case, the terminal includes a subchannel gain characteristics.

[0020] 此外,在步骤S102、步骤S104、步骤S106、和步骤S108,保证终端与基站之间存在数据传输。 [0020] Further, in step S102, step S104, step S106, step S108, to ensure the presence of data transmission between the terminal and the base station. 此时,在步骤S106中,终端利用带宽容量传输特定调制编码方式下数据包来保证与基站的应用服务器之间存在数据传输(例如,从应用服务器做文件下载)。 In this case, in step S106, the terminal uses the transmission bandwidth capacity of a particular modulation and coding scheme to ensure that data packets transmitted between the base station and the application server (e.g., make a file downloaded from the application server). 其中,上述特定调制编码方式是四相移相键控(QPSK),编码率是1/2。 Wherein the specific modulation and coding scheme is quadrature phase shift keying (QPSK), the coding rate is 1/2.

[0021] 另外,该方法中的上述系统参数至少包括:傅立叶变化点数、子信道偏置方式、上下行符号比。 [0021] Further, the system parameters of the method comprises at least: Fourier transform points, subchannel offset mode, the ratio of downlink symbols. 应当注意,在计算带宽容量时使用的系统参数有多个,而上下行符号比是最主要应用到的一个。 It should be noted that the system parameters used in calculating a plurality of bandwidth capacity, the ratio of downlink symbols is applied to a main.

[0022] 在实际实现根据本发明实施例的方法时,具体可以执行以下步骤: [0022] When the method according to embodiments of the present invention, the actual implementation, the following particular steps may be performed:

[0023] (1)建立有效的测试环境,使终端接入基站,建立上下行业务流,获取IP地址并 [0023] (1) establishing an effective test environment, so that the terminal accesses the base station to establish uplink and downlink traffic flow, obtain the IP address and

ping通应用服务器,其中,测试环境的结构如图2所示; ping the server application, wherein the structure of the test environment shown in Figure 2;

[0024] (2)增大路损,记录接入测距失败过程中终端用户界面上的最大功率作为终端的最大上行发射功率参考数值(即,上述基准功率); [0024] (2) path loss increases, the maximum recording power terminal user interface on maximum uplink transmission power reference value (i.e., the reference power) is used as an access terminal during a ranging failure;

[0025] (3)根据系统配置参数,尤其是上下行符号比计算特定调制编码方式下上行单个子信道的带宽容量,将计算的带宽容量作为基站分配给终端的带宽值; [0025] (3) system configuration parameter value of the bandwidth, especially at the upper and lower row symbols are calculated ratio specific modulation and coding scheme upstream bandwidth capacity of a single subchannel, calculated as the base station bandwidth capacity allocated to the terminal according to;

[0026] (4)减少路损,使终端接入基站,基站按照先时域后频域的方式,给终端分配特定的上行带宽,终端使用这个带宽,并使用特定的调制编码方式连接应用服务器进行数据传输; [0026] (4) reduce the path loss, so that the terminal accesses the base station, the base station in accordance with the first embodiment when the frequency domain after the domain, upstream bandwidth allocation specific to the terminal, the terminal uses the bandwidth and specific modulation and coding scheme application server connected data transmission;

[0027] (5)基站侧向终端侧发送功率上升指令,逐步提升MS的发射功率至最大功率,并记录。 [0027] (5) side to the terminal side base station transmission power increase command, gradually increase the transmission power of the MS to the maximum power, and recording.

[0028] (6)根据终端界面显示的最大发射总功率数值判定终端是否具备子信道增益特性。 [0028] (6) determines whether or not the terminal includes a subchannel gain characteristics in accordance with the maximum total transmit power of the terminal interface display value.

[0029] 下面结合具体测试场景来对本发明的上述处理进行详细说明。 [0029] Next to be described in detail the above-described process of the present invention in connection with specific test scenario. [0030] 图2是本发明所述测试方法的测试环境示意图。 [0030] FIG. 2 is a schematic diagram of the test environment test method of the invention.

[0031] 在步骤(1)中,如图2所示,上述有效测试环境包括:终端、基站、接入网关、AAA服 [0031] In step (1) in FIG. 2, the active test environment comprising: a terminal, a base station, an access gateway, the AAA server

务器和应用服务器、和OMC后台。 Service and application servers, and OMC background. 其中,AAA服务器与应用服务器可以共用,OMC后台为可选 Wherein, AAA servers and application servers can share, OMC optional background

部分。 section. 终端使用的用户名必须在AAA上注册,接入网关需要具备IP地址分配和管理能力, Username terminal used must be registered on the AAA, access gateway requires IP address allocation and management capabilities,

应用服务器需要配置反向路由或网关。 You need to configure the application server or gateway reverse route. 使Ping包能够正确返回到终端侧。 So Ping packet to return to the correct side of the terminal.

[0032] 在步骤(1)中,建立有效测试环境的含义是:终端安装并使用正确的驱动和用户 [0032] In step (1), the meaning of establishing an effective test environment are: the terminal mounting and use the correct driver and user

界面软件,基站系统正常工作,终端与基站具有相同的工作频点和带宽。 Interface software, the system work station, a terminal and a base station having the same operating frequency and bandwidth. 终端与基站建立同 Establishing the same terminal and the base

步,接入过程遵循802. 16e协议的定义,所建立的业务流可以是任意类型的Qos业务流,所 Step 802. 16e defined access procedure follows the protocol established traffic flow may be any type of Qos of traffic flow, the

获取的IP地址可以是DHCP方式获得,也可以是静态绑定MAC地址的方式。 Obtain an IP address can be obtained through DHCP, or static MAC address binding way. 并且,终端与基 Further, the terminal group

站之间的链路可以是无线信道也可以是有线连接。 The station may be a link between a wireless channel may be a wired connection. 如果是无线信道,通过调整天线与终端 If the wireless channel, and by adjusting the antenna terminal

之间的距离和位置控制路损,如果是有线连接,则通过调节衰减器的衰减量控制路损大小。 And a distance between the position control path loss, if the wired connection, the amount of attenuation through the adjustable attenuator control the size of the path loss.

[0033] 另外,在步骤(1)中,将待测终端接入基站后,建立上下行业务流,获取IP地址,此 [0033] Further, in step (1), the base station after the access terminal to be tested, to establish the uplink and downlink traffic flow, obtain an IP address, this

时,如果能够持续ping通应用服务器,则可以确认整个测试环境工作正常。 When, if we can continue to ping the application server, you can confirm the entire test environment to work properly.

[0034] 在步骤(2)中,加大信道衰减,使终端接入基站Range失败,记录Range失败时终 [0034] In step (2), increasing channel attenuation, so that the terminal accesses the base station Range fails, the recording end time of failure Range

端用户软件界面上的终端最大发射功率,一般为23dbm.作为后续最大发射功率的参考数值。 Maximum transmit power on the terminal end of the software user interface, typically 23dBm. Reference value as the maximum transmit power follow.

[0035] 并且,在步骤(2)中,终端的Range过程是在协议要求的固定6个子信道上前3个符号内完成的,在信道路损较大以致无法Range成功的情况下,终端自己,同时基站也将持续的要求终端提升Range功率,终端按照设定的步长提升Range功率直到最大功率,此时, 也就是Range结束时的终端发射功率,该功率被分布到Range使用的6个子信道上。 [0035] Further, in the step (2), the terminal processes within Range 3 symbols protocol requirements fixed six subchannels approached completion, large letter path loss that can not Range is successful, the terminal itself , while the base station will continue to enhance the Range power request terminal, the terminal step is set in accordance with a power up to a maximum lifting power Range, this time, that is, at the end of the terminal Range transmit power, the power is distributed to the sub-Range 6 using channel. [0036] 之后,减小信道衰减,使终端接入基站成功,记录成功获取IP地址后的终端上行发射功率,此时,设定期望的上行CINR数值,例如,可设置为10db,启动FTP数据上传,待传 After [0036], channel attenuation is reduced, so that the terminal accesses the base station is successful, the success of the terminal after obtaining the IP address of the uplink transmitting power, at this time, a desired uplink CINR value is set, for example, may be set to 10dB, the data start FTP upload, to be transferred

5输稳定后,观察此时终端的发射功率,发现终端上行发射功率有所提升,数据传输完毕或停止传输之后,观察终端发射功率会有降低,这样就说明终端在保证上行CINR数值基本不变的情况下,使用的子信道数量多,则发射功率有增加,使用的子信道数量少,发射功率有减少。 After 5 lost stability was observed at this time the transmit power of the terminal, the uplink transmit power of the terminal has found lifting, after the data transfer is complete or stop transmission, there is observed a terminal transmit power is reduced, so that description of the terminal substantially constant ensuring uplink CINR value in the case where, the number of subchannels, the transmit power is increased, a small number of subchannels, a decrease in transmit power.

[0037] 另外,在步骤(3)中的计算过程如下:以TDD双工方式中10M带宽1024点傅立叶变换、PUSC使用全部子信道、5ms帧情况下的上下行符号比31 : 15为例计算,去掉3个符号的range开销,此时,上行一个子信道对应的有效负荷slot数量是,1 X (15-3)/3 = 4,每个slot含48个子载波,QPSK 1/2调制方式下,可携带的byte数为6个,这样,QPSK 1/2 下,一个子信道对应的带宽为24字节。 [0037] Further, the calculation process at step (3) is as follows: in the TDD duplex mode 10M bandwidth of 1024-point Fourier transform, using the PUSC all subchannels, symbols in the downlink than 5ms frame case 31: Calculation Example 15 removed overhead range 3 symbols, in which case, the uplink subchannel effective amount of a load corresponding slot includes, 1 X (15-3) / 3 = 4, containing 48 sub-carriers per slot, QPSK 1/2 modulation scheme , the byte number of six portable, so that, under the QPSK 1/2, corresponding to a subchannel bandwidth of 24 bytes.

[0038] 步骤(4)中,带宽可以由终端申请,申请的方式包括带宽申请码,带宽申请字头, 并且也可以由基站主动分配带宽。 [0038] Step (4), the bandwidth may be filed by the terminal, the application manner include bandwidth request code, the bandwidth request header, and the bandwidth may be assigned by the base station active. 为了确保测试使用的带宽只有一个信道,测试采用基站每帧主动分配指定带宽的方式,带宽的分配上,基站需要符合协议要求的上行先时域后频域的方法。 To ensure that the bandwidth used to test only one channel, the base station autonomously test using a specified bandwidth per frame mode, the bandwidth allocation method of the base station need to meet the protocol requirements the uplink time domain to the frequency domain. 连接应用服务器进行文件传输的作用是让终端使用这个带宽进行上行发射。 Operatively connected to the application server file transfer using the terminal is to transmit an uplink bandwidth. 图3为基站上行子信道的分配示意图,其中,Test slot(测试时隙)得到的增益最大为15. 4db(101og35)。 FIG 3 is a schematic diagram of a base station uplink allocation subchannels, wherein, Test slot (test slots) is the maximum gain obtained 15. 4db (101og35).

[0039] 对以上步骤进行确认后,对基站进行配置,使能功控,并使基站每帧主动分配步骤3计算的带宽给接入的终端。 [0039] After the above steps to confirm the configuration of the base station, power control is enabled, and the step of the base station autonomously to the access terminal calculates a bandwidth of 3 per frame.

[0040] 在步骤(5)中,基站向终端发送功率上升指令,基站需要按照协议要求的功率步长0.25db连续发送命令。 [0040] In step (5), the base station transmission power increase instruction to the terminal, the base station needs to send a command in accordance with the protocol requires continuous power step 0.25db. 使用的方式包括PMC消息、FPC消息、或者Power Control IE方式。 PMC embodiment include a message, the message an FPC, or the Power Control IE embodiment. 终端需要正确解析并执行功率上升的指令直到达到最大发射功率。 Terminal needs to properly parse and execute instructions power rises until it reaches the maximum transmit power. 终端当前的上行发射功率显示在终端用户软件界面上。 Current uplink transmit power of terminal software interface displayed on the end user. 每执行一条功率上升指令则确认和记录该功率数值, 直到不再变化为止。 Each performs a power-up instruction is confirmed and the recording power values, up until no change. 实施过程中需要保证基站接收到的信号功率不达到基站接收功率的饱和点,避免终端上行信号恶化而脱网。 The need to ensure implementation of the base station the received signal power does not reach the saturation point of the base station receive power, the terminal to avoid deterioration of the uplink signal off the network.

[0041] 最后,在步骤(6)确认步骤5中记录的最大发射功率与步骤2中记录的最大发射功率是否一致,如果一致,则说明被测试的WiMAX终端具备子信道增益处理能力;如果不一致,则说明测试终端不具备子信道增益处理能力。 [0041] Finally, the maximum transmit power in the step of confirming in step (6) in step 5 maximum transmit power 2 recorded are the same, if they are consistent, then the tested subchannel gain WiMAX terminal includes a processing capacity; if not , then the terminal does not have a test subchannel gain processing capabilities.

[0042] 需要说明的是,终端具有子信道增益特性,并不代表系统能够直接利用这个特性解决反向受限的问题,从前面的分析可以知道。 [0042] Incidentally, the terminal having a subchannel gain characteristic, does not represent the system can directly use this feature to resolve the problem of limited reverse, can be known from the preceding analysis. 实际系统对终端子信道增益的利用需要基站带宽分配机制的配合,在终端发射功率受限的时候,调度减少分配给该终端的子信道个数以利于终端子载波功率的提升。 When the actual use of the system requires the terminal fitting subchannel gain bandwidth allocation mechanism base station, transmit power is limited in the terminal, the scheduling to reduce the number of subchannels allocated to the terminal to facilitate the lifting of the terminal subcarrier power.

[0043] 综上所述,本发明通过量化基站分配给终端的子信道个数,利用功控指令,测试 Subchannel number [0043] To sum up, the present invention is assigned to the terminal by the base station quantization using power control instructions, the test

WiMAX终端在使用基站分配给其使用的子信道上的发射功率的动态范围,评估WiMAX终端 WiMAX terminal using the base station assigned to the dynamic range of the transmission power of a subchannel its use to assess the WiMAX terminal

是否具备子信道增益特性。 Whether it has the subchannel gain characteristics. 在实现过程中,本发明不涉及专用射频测试仪器的使用和对射 In implementation, the present invention does not involve the use of special RF test instruments and the radio

频信号功率的复杂测量,对环境要求低,操作简便易行,极大的提升了测试的效率。 Complex measurements of pilot signal power, low environmental requirements, easy operation, greatly enhancing the efficiency of the test.

[0044] 以上所述仅为本发明的优选实施例而已,并不用于限制本发明,对于本领域的技 [0044] The above description is only preferred embodiments of the present invention only, the present invention is not intended to limit the present art technology

术人员来说,本发明可以有各种更改和变化。 Artisan, the present invention may have various modifications and changes. 凡在本发明的精神和原则之内,所作的任何修 Any repair within the spirit and principles of the present invention, made

改、等同替换、改进等,均应包含在本发明的保护范围之内。 Change, equivalent replacement, improvement, etc., should be included within the scope of the present invention.

6 6

Claims (6)

  1. 一种测试终端子信道增益特性的方法,其特征在于,包括:步骤S102,确认终端能够接入基站后,增大路损,使所述终端与所述基站测距失败,将此时所述终端的上行发射功率作为基准功率记录;步骤S104,所述基站根据系统配置参数计算单个上行子信道的带宽容量;步骤S106,通过减小路损使所述终端接入所述基站,所述基站对所述终端分配计算得出的所述单个上行子信道的带宽容量;步骤S108,所述基站通过向所述终端发送功率上升指令提高所述终端的发射功率,直到所述发射功率不能提高为止,并将此时所述终端的发射功率作为测量功率记录;以及步骤S110,将所述基准功率和所述测量功率进行对比,在所述基准功率与所述测量功率对比结果为相等的情况下,判断所述终端具备子信道增益特性。 A method of testing a terminal subchannel gain characteristic, characterized by comprising: step S102, after the confirmation terminal to access the base station, path loss is increased, so that the terminal and the base station ranging fails, the terminal case uplink transmission power as the reference power of the recording; step S104, the base station calculates the uplink subchannel bandwidth capacity of a single system configuration parameters; step S106, the path loss by reducing the access terminal to the base station, the base station the terminal allocation calculated upstream bandwidth capacity of the single subchannel; step S108, the lift command to the base station by transmitting power to the terminal increase the transmission power of the terminal, until the transmit power can not be increased so far, at this time, and transmit power of the terminal as a measurement recording power; and a step S110, the power of the reference and comparing the measured power, the power in the reference comparison with the measurement result of the power being equal, the terminal includes a determining subchannel gain characteristics.
  2. 2. 根据权利要求1所述的方法,其特征在于,在所述步骤S106中,所述基站以先时域后频域的方式向所述终端按帧主动分配所述带宽容量。 2. The method according to claim 1, wherein, in the step S106, the base station after the first time in the manner and frequency domain according to the allocated bandwidth capacity active frames to the terminal.
  3. 3. 根据权利要求1至2中任一项所述的方法,其特征在于,在所述步骤S102、所述步骤S104、所述步骤S106、和所述步骤S108,保证所述终端与所述基站之间存在数据传输。 3. A method according to any one of claims 2 claim, wherein, in the step S102, the step S104, the step S106, and the step S108, the terminal and the guarantee data transmission between the base station exists.
  4. 4. 根据权利要求3所述的方法,其特征在于,在所述步骤S106中,所述终端利用所述带宽容量传输特定调制编码方式下的数据包来保证与所述基站的应用服务器之间存在数据传输。 4. The method according to claim 3, wherein, in the step S106, the base station between the application server and the terminal using a packet data transmission in the bandwidth capacity of a particular modulation and coding scheme to guarantee there is data transmission.
  5. 5. 根据权利要求4所述的方法,其特征在于,所述特定调制编码方式是四相移相键控, 编码率为1/2。 The method according to claim 4, characterized in that the specific modulation and coding scheme is quadrature phase shift keying, the coding rate is 1/2.
  6. 6. 根据权利要求1至2中任一项所述的方法,其特征在于,所述系统参数至少包括:傅立叶变换点数、子信道偏置方式、上下行符号比。 6. The method according to claim 2, characterized in that the system parameters comprising at least: a Fourier transform points, subchannel offset mode, the ratio of downlink symbols.
CN 200710182032 2007-10-24 2007-10-24 Method of testing terminal channel gain characteristic CN101159516B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200710182032 CN101159516B (en) 2007-10-24 2007-10-24 Method of testing terminal channel gain characteristic

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200710182032 CN101159516B (en) 2007-10-24 2007-10-24 Method of testing terminal channel gain characteristic

Publications (2)

Publication Number Publication Date
CN101159516A CN101159516A (en) 2008-04-09
CN101159516B true CN101159516B (en) 2010-06-02

Family

ID=39307457

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200710182032 CN101159516B (en) 2007-10-24 2007-10-24 Method of testing terminal channel gain characteristic

Country Status (1)

Country Link
CN (1) CN101159516B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102917452B (en) * 2011-08-02 2018-01-09 中兴通讯股份有限公司 Access phase Poewr control method and device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1698274A (en) 2002-07-30 2005-11-16 美商智慧财产授权股份有限公司 System and method for multiple-input multiple-output (MIMO) radio communication
CN1949678A (en) 2005-10-12 2007-04-18 株式会社日立制作所 Wireless data communication system, wireless data communication method and communication apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1698274A (en) 2002-07-30 2005-11-16 美商智慧财产授权股份有限公司 System and method for multiple-input multiple-output (MIMO) radio communication
CN1949678A (en) 2005-10-12 2007-04-18 株式会社日立制作所 Wireless data communication system, wireless data communication method and communication apparatus

Also Published As

Publication number Publication date
CN101159516A (en) 2008-04-09

Similar Documents

Publication Publication Date Title
US8018911B2 (en) Method for requesting and reporting channel quality information in wireless portable internet system
KR101263627B1 (en) Channel sounding for improved system performance
CN102665266B (en) Power in schedulable wireless communication terminal controls
CN1310439C (en) Power control with signal quality estimation for smart antenna array communication systems
AU2009243503B2 (en) Measurement Support for a Smart Antenna in a Wireless Communication System
CN101044700B (en) In time division duplex mobile communication apparatus and method for adaptively changing an uplink power control scheme according to mobile status
TWI578743B (en) Control signaling in wireless communications
RU2477021C2 (en) System of mobile communication, base station, user terminal and method to control user terminal
US8274903B2 (en) Methods and apparatus for switching between a base channel and a 60 GHz channel
US7804797B2 (en) Communication control device and communication control method
US7583645B2 (en) Adaptive MAC architecture for wireless networks
CN101390429B (en) Apparatus and method for controlling channel switching in wireless networks
KR20180091969A (en) Method and apparatus for power savings in a wireless local area network
CN1977479B (en) Method for clear channel assessment optimization in a wireless local area network
US8462706B2 (en) Method for requesting and reporting channel quality information in wireless system and apparatus thereof
JP5307895B2 (en) Method and apparatus for performing transmission power control in a wireless network
US20140112405A1 (en) Methods and apparatus for managing wireless medium utilization
DE60213583T2 (en) Momentary common transmission control and connection adaptation for rts / cts based channel access
US20090067374A1 (en) Method for Traffic Indication and Channel Adaptation for Sleep Mode Terminals, and an Apparatus Thereof
US8503413B2 (en) Mobile communication system, mobile station apparatus, base station apparatus and random access channel transmitting method
US7813291B2 (en) Method and apparatus for requesting and reporting channel quality information in mobile communication system
TWI466568B (en) Multiple carriers communication system bandwidth request methods and mobile stations using the same
CN101116265B (en) Wireless device and sending power control based interfere preventing method
CN101595655B (en) Apparatus and method for processing bandwidth request in multihop relay broadband wireless access (bwa) communication system
JP2005531968A (en) Link adaptation

Legal Events

Date Code Title Description
C06 Publication
C10 Entry into substantive examination
C14 Grant of patent or utility model
CF01