WO2009046589A1 - Network adaptive adapting method of multimode mobile telephone - Google Patents

Network adaptive adapting method of multimode mobile telephone Download PDF

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Publication number
WO2009046589A1
WO2009046589A1 PCT/CN2007/003527 CN2007003527W WO2009046589A1 WO 2009046589 A1 WO2009046589 A1 WO 2009046589A1 CN 2007003527 W CN2007003527 W CN 2007003527W WO 2009046589 A1 WO2009046589 A1 WO 2009046589A1
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Prior art keywords
network
value
rssi
mobile phone
ber
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English (en)
French (fr)
Inventor
Zemin Wang
Xin Yang
Youpeng Gu
Tongliang Zou
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ZTE Corp
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ZTE Corp
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/18Selecting a network or a communication service
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/16Discovering, processing access restriction or access information

Definitions

  • the present invention relates to the field of communications, and in particular, to a network adaptive adaptation method for a multimode mobile phone.
  • the mobile communication network system may be in an overloaded state. This final result will cause the mobile phone to be prone to similar faults such as dropped calls, crosstalk, poor voice quality, and difficulty in accessing the Internet. .
  • GSM Global System for Mobile Communication
  • CDMA Code Division Multiple Access
  • GSM/CDMA dual-mode mobile phones can be used to switch between GSM network and CDMA network. This can effectively avoid problems such as dropped calls, difficult calls, and poor sound quality in the past, which is more convenient than previous calls using only a single GSM network.
  • the primary task of multi-mode mobile phones is to avoid faults such as dropped calls, crosstalk, poor voice quality, and difficulty in accessing the Internet, and to provide satisfactory wireless service to mobile phone users.
  • the current multi-mode mobile phone is mainly a dual-mode mobile phone.
  • the mode used by the dual-mode mobile phone is set by the user in advance. The starting point of this situation is mainly considering that the two networks of the dual-mode mobile phone are waiting at the same time.
  • the problem that the radio frequency may interfere with each other, such as the GSM1800, PHS1900, and CDMA2100 frequency bands, because the frequency points are relatively close, it is necessary to consider that the frequency band is close to each other, which will cause mutual interference, resulting in a call loss situation, and the user selects the network. This problem can be avoided.
  • the technical problem to be solved by the present invention is to provide a network adaptive adaptation method for a multi-mode mobile phone, which can satisfy the basic voice call, short message operation, STK (SIM APPLICATION TOOLKIT, User Identification Module Application Toolkit), etc.
  • STK SIM APPLICATION TOOLKIT, User Identification Module Application Toolkit
  • the present invention provides a network adaptive adaptation method for a multimode mobile phone, which includes the following steps:
  • step (b) when the multi-mode mobile phone performs a wireless communication service, comparing the wireless environment quality parameter of the current network or the user-designated network with a corresponding threshold, and determining whether the wireless environment quality meets the wireless environment quality requirement of the network, such as Performing the service on the current network or the user-specified network, and ending, otherwise enabling the network adaptive adaptation function, and proceeding to step (c);
  • the multimode mobile phone sequentially acquires wireless environment quality parameters of other mode networks and compares them with corresponding thresholds. If it is determined that the wireless environment quality meets the requirements of the network, the network is selected as the current service usage network, and the network ends.
  • step (c) if the quality of the wireless environment of the other Mo network does not meet the requirements, continue with the following steps:
  • the wireless environment quality parameter is a signal strength indicator RSSI, and when the RSSI value is greater than its domain value, the network performance is considered to meet the set wireless environment quality requirement.
  • the wireless environment quantity parameter includes a signal strength indication RSSI and a bit error rate BER.
  • RSSI signal strength indication
  • BER bit error rate
  • the multimode mobile phone compares the relative signal strength indication values in the respective mode networks, and the network with the largest relative signal strength indication value is used as the wireless environment quality optimal.
  • the network conducts current business.
  • the foregoing method may further have the following feature.
  • the network with the smallest relative error rate value is selected as the network with the best wireless environment quality for current service.
  • the multimode mobile phone selects a network with the highest relative signal strength indication value and the smallest relative error rate value in all supported modes as the network with the best wireless environment quality. Conduct current business.
  • step the user enables the network adaptive adaptation function by setting the open network adaptive adaptation indication switch to on.
  • step (a) a method for selecting the RSSI and the BfiR threshold is:
  • the RSSI threshold is chosen to be equal to one-half the difference between the maximum value of the RSSI supported by the network and the minimum value of the RSSI supported by the network;
  • the threshold BER is chosen to be equal to one-half the difference between the maximum value of the BER reached by the network and the minimum value of the BER reached by the network.
  • the relative signal strength indication value and the relative error rate value are selected as follows:
  • the relative signal strength indication value is equal to the RSSI value of the current network and the minimum RSSI supported by the network.
  • the difference in value is greater than the maximum RSSI supported by the network and the minimum RSSI supported by the network. The ratio of the difference in value;
  • the relative error rate value is equal to the difference between the difference between the BER value of the current network and the minimum value of the BER reached by the network, and the difference between the maximum value of the BER reached by the network and the minimum value of the BER reached by the network.
  • step (c) the multi-mode mobile phone sends an AT+CSQ command to the network to obtain the signal strength of the network, and if the multi-mode mobile phone does not receive the network return within the set time, In response, or the network returns information indicating that the network query failed or the network has a problem, then the network mode of the multimode mobile phone is repeated to repeat the operation of step (c).
  • the invention provides a network adaptive adaptation method in a multi-mode mobile phone, which automatically selects a better network of a multi-mode mobile phone in the current situation when the designated network or the current network cannot provide a good quality wireless network service.
  • the communication service the user does not need to perform the manual operation of the preferred network selection and thus the time waiting;
  • the network adaptive adaptation method of the multi-mode mobile phone can avoid the occurrence of the similarity of the dropped line, the crosstalk and the voice quality to the greatest extent. It is not good, it is difficult to access the Internet and other faults.
  • the wireless interface module in the mobile phone has to detect and report the performance index values of RSSI and BER, which avoids the extra resource overhead of the mobile phone system.
  • Figure 1 is a schematic diagram of the role of the dual-mode mobile phone service server in the mobile phone software.
  • FIG. 2 is a schematic diagram of a process for selecting a current operating network by using a network adaptive adaptation method according to an embodiment of the present invention.
  • FIG. 3 is a specific flowchart of the adaptive adaptation step of the dual-mode mobile phone network in FIG. 2 .
  • Preferred embodiment of the invention
  • the invention relates to a network adaptive adaptation method in a multi-mode mobile phone, which belongs to the field of mobile terminal software, and more specifically to a multi-mode mobile phone, which performs basic voice call, short message operation, STK application, etc. in the terminal user.
  • the network service quality is automatically selected from the network that the multi-mode mobile phone can access to meet the user service requirement or the current quality is optimal.
  • the network to provide the best wireless service to end users.
  • This embodiment takes a dual mode mobile phone as an example.
  • the wireless interface module is located between the operating system and the application in the mobile phone and acts as a wireless application interface.
  • the main functions provided by the wireless interface module are: receiving a wireless communication request sent by the application, receiving a command response sent from the wireless module of the base station, receiving a notification message sent from the wireless module of the base station, and ensuring the real-time and command of the sending and receiving commands. Priority control, parallel processing of commands, exception handling of commands, data buffering, and establishment of data call link connections.
  • the wireless interface module exchanges data with the wireless network through the modem, as shown in Figure 1.
  • the mobile phone wireless interface module interacts with the upper layer application, it needs to process the interaction between the application and the wireless network.
  • the network adaptive adaptation function of the dual mode mobile phone needs to be implemented by the wireless interface module of the mobile phone, specifically, by wireless.
  • the telephone service server in the interface module is completed.
  • the network adaptive adaptation configuration file needs to be set in the dual-mode mobile phone.
  • the configuration file is set by the mobile phone manufacturer before the mobile phone is shipped from the factory, including RSSI (Received Signal Strength Indicator) and BER in the two modes of the network. Threshold information of (Bit Error Rate), and network adaptive adaptation indicator switch (bNetWorkAtuoSel) variable.
  • the RSSI threshold and the BER value can be determined as the RSSI value and the BER value of the wireless network service shield or the quality of the wireless environment. The selection of these two values can be based on different situations or standards. In this embodiment, one half of the maximum value of the RSSI supported by the network - the minimum value of the RSSI supported by the network is taken as the RSSI threshold, (the maximum value of the BER reached by the network - the minimum value of the BER reached by the network) Half of it is the BER threshold.
  • the RSSI threshold is used to measure the strength of the broadband receiving power in the entire channel band, which is less than the threshold, indicating that the coverage of the network base station is not good here, and the quality of the network wireless environment is poor, and conversely, the threshold is greater than the threshold, indicating that the The wireless base station here is excellent in the quality of the wireless environment.
  • the BER value is used to measure the quality of the wireless transmission shield. If the value is greater than the threshold, it indicates that the information is greatly damaged during the wireless transmission, which may result in dropped calls, failed data transmission, etc., which is less than the threshold, indicating that it is in the wireless. The information received during the transmission is less damaged and does not affect user communication.
  • the network adaptive adaptation indication switch variable is used to indicate whether the network adaptive adaptation function of the mobile phone is activated, and whether the switch is turned on or not is manually set by the mobile phone user when in use.
  • the embodiment includes the following steps:
  • Step 110 The user sets a network adaptive adaptation indication switch (bNetWorkAtuoSel);
  • Step 120 When the user performs a basic voice call, a short message operation, an STK application, and the like, the application sends a related message to the telephone service server;
  • Step 130 The Han model mobile phone determines whether the network adaptive adaptation indication switch bNetWorkAtuoSel is enabled. If bNetWorkAtuoSel indicates that the network adaptive adaptation is enabled, the process proceeds to step 140. Otherwise, step 160 is performed, and the current network or the user-specified network is used for the user. If the bNetWorkAtuoSel indicates that the network adaptive adaptation is off, the telephony service server converts the command sent by the application into an AT (Attention, a string command from the terminal device to the terminal adaptation layer for starting the command line), The current network or the modem corresponding to the user-specified network is sent to the current network or a user-specified network. This situation has the drawbacks described in the background art.
  • Step 140 The dual-mode mobile phone acquires the RSSI and the BER of the current network or the user-specified network.
  • the RSSI and BER values can be directly obtained in the mobile phone software telephony service server.
  • Step 150 the dual-mode mobile phone determines whether the value of RSSI and BER satisfies the RSSI value above its threshold and the BER value is below its threshold, and if so, proceeds to step 160, otherwise, proceeds to step 170;
  • the comparison between the values of RSSI and BER and their respective thresholds is determined.
  • the present invention may also adopt other parameters and methods, such as determining whether the RSSI value is at its threshold. on.
  • the telephone service server selects the network for the user-selected wireless service. ; conversely, if or the current RSSI value If the current BER value is greater than the BER threshold, it indicates that the base station coverage of the current network in the lot is not good, resulting in poor signal strength, or the current network is busy, and the transmission error rate is high, that is, the network cannot currently Provide users with a better wireless environment shield.
  • Step 160 to continue on the current network designated by the user or network-related service, end; step 170, a mobile phone network mode 3 and the adaptive adaptation.
  • step 170 includes:
  • Step 210 Calculate the current capability ratio of the network according to the current network or the RSSI and BER of the user-specified network. RatioRssil and RatioBerl;
  • the relative RSSI value that is, RatioRssi is equal to (the RSSI value of the current network - the minimum value of the RSSI supported by the network), the ratio of the maximum value of the RSSI supported by the network - the minimum value of the RSSI supported by the network;
  • the BER value, RatioBer is equal to the ratio of (the BER of the current network - the minimum value of the BER reached by the network) to the maximum value of the BER reached by the network - the minimum value of the BER reached by the network.
  • Step 220 The dual-mode mobile phone obtains the RSSI and BER performance parameters reported by the network in the other mode of the dual-mode mobile phone, and determines whether the RSSI and BER values of the network satisfy the RSSI value above the threshold and the BER value is at its threshold. Next, if yes, go to step 260, otherwise go to step 230;
  • the subsequent relative comparison steps may not be performed, and the current network or the current network is still selected. It is the user-specified network to perform related services. After detecting the RSSI and BER performance parameters of another mode network of the dual-mode mobile phone, if it is found that there is no upper 4 ⁇ , it can be acquired by interacting with the wireless protocol module by the modem on the mobile phone side.
  • the telephone service server sends an AT+CSQ (Command Signal Quality) command to the network side through the modem to request the signal strength of the network, if it is not received within a certain period of time (such as 500 milliseconds).
  • AT+CSQ Common Signal Quality
  • Step 230 Calculate, according to the obtained RSSI of the network in another mode, the ratio of the current capability of the network, RatioRssi2;
  • Step 240 the dual-mode mobile phone compares the two networks that can be accessed. If RatioRssil is better than RatioRssi2, proceed to step 250, otherwise proceed to step 260;
  • Step 250 Select a current network or a user-specified network to perform related services, and end;
  • Step 260 Select another mode network to perform related services, and end.
  • RatioRssi of the two networks If the RatioRssi of the two networks is equal, you can further compare the RatioBer of the two networks and select a network access with a smaller RatioBer.
  • the selected network can be saved as the current network used by the user next time, and the mobile phone display interface is notified, so that the adaptive adaptation time of the network can be saved in the next operation.
  • This embodiment takes a multimode mobile phone including three or more communication networks as an example, and assumes that a multimode mobile phone is supported.
  • the number of communication networks held is N.
  • the network adaptive adaptation function of the multimode mobile phone needs to be implemented by the wireless interface module of the mobile phone, specifically, by the telephone service server in the wireless interface module.
  • the network adaptive adaptation configuration file needs to be set in the multi-mode mobile phone.
  • the configuration file is set by the mobile phone manufacturer before the mobile phone is shipped from the factory, including RSSI (Received Signal Strength Indicator) and BER in the N mode network. Threshold information of (Bit Error Rate), and network adaptive adaptation indicator switch (bNetWorkAtuoSel) variable.
  • the selection criteria for the RSSI threshold and the BER threshold are the same as in the first embodiment.
  • Step 310 The user sets a network adaptive adaptation indication switch (bNetWorkAtuoSel); Step 320, the user performs basic voice call, short message operation, When a STK application or the like needs to exchange services with the network, the application sends a related message to the telephone service server;
  • Step 320 the user performs basic voice call, short message operation, When a STK application or the like needs to exchange services with the network, the application sends a related message to the telephone service server;
  • Step 330 The multi-mode mobile phone determines whether the network adaptive adaptation indication switch bNetWorkAtuoSel is enabled. If bNetWorkAtuoSel indicates that the network adaptive adaptation is enabled, the process proceeds to step 340. Otherwise, the current network or the user-specified network is used for user service.
  • Step 340 The multi-mode mobile phone obtains the RSSI and the BER of the current network or the user-specified network; and the multi-mode mobile phone obtains the RSSI and the BER of the current network or the user-specified network in the same manner as the first embodiment.
  • Step 350 The multimode mobile phone determines whether the values of RSSI and BER satisfy the RSSI value above its threshold and the BER value is below its threshold. If yes, go to step 360. Otherwise, go to step 370. Similarly, this embodiment is The result of comparing the values of RSSI and BER with their respective thresholds is judged. However, when determining whether the quality of the wireless environment meets the requirements, the present invention may also adopt other parameters and methods, such as determining whether the RSSI value is above its threshold.
  • Step 360 Continue to perform related services on the current network or the user-specified network, and end; Step 370, perform adaptive adaptation of the multi-mode mobile phone network.
  • step 370 includes:
  • Step 410 Calculate the network according to the current network or the RSSI and BER of the user-specified network.
  • the current ratio of capabilities reached RatioRssil and RatioBerl;
  • RatioRssi and RatioBer are the same as those in the first embodiment.
  • Step 420 The multimode mobile phone acquires the RSSI and BER performance parameters reported by the network in another mode of the multimode mobile phone. If the RSSI and BER values of the network satisfy the RSSI value above the threshold and the BER value is below the threshold, Then select the network to perform related services, and the process ends; otherwise, the process proceeds to step 430;
  • the wireless protocol module After detecting the RSSI and BER performance parameters of another mode network of the multimode mobile phone, if it is found that it is not reported, it can be obtained by interacting with the wireless protocol module by the modem on the mobile phone side.
  • the signal strength of the network if it does not receive a response from the network within a certain period of time (such as 500 milliseconds), or the network returns
  • step 440 If the network query fails or there is a problem with the network, go to step 440.
  • the command returns the RSSI and BER performance parameter values to the telephony service server.
  • Step 430 calculating, according to the obtained RSSI and BER of the network in the second mode, the ratios of the currently achieved capabilities of the network, RatioRssi (m) and RatioBer (m);
  • n is a natural number from 2 to N.
  • Step 440 repeat step 420, until the N network traversal is completed, proceed to step 450;
  • Step 450 the multi-mode mobile phone compares the N networks that the multi-mode mobile phone can access, and selects
  • the RatioRssi optimal network performs related services and ends.
  • the RatioBer indicator can be further compared.
  • the network with the smallest RatioBer is selected as the network with the best quality of the wireless environment in the multiple networks.
  • the selected network is saved as the current network used by the user next time, and the mobile phone display interface is notified, so as to save the adaptive adaptation time of the next operation network.
  • the above embodiment effectively implements the network adaptive adaptation of the multi-mode mobile phone, and provides the mobile phone user with the network environment in which the wireless environment shield network service quality meets the user service requirement or the current quality is optimal.
  • the user may have to select the rest of the network after multiple attempts to access the Internet because the network cannot meet the wireless service requirements.
  • the reporting of the RSSI and BER performance parameters is periodic, no additional process is required. Therefore, there will be no major changes to the flow of the multi-mode mobile phone, and no additional mobile phone system resources will be consumed.
  • the invention provides a network adaptive adaptation method in a multi-mode mobile phone, which automatically selects a better network of a multi-mode mobile phone in the current situation when the designated network or the current network cannot provide a good quality wireless network service.
  • the communication service the user does not need to perform the manual operation of the preferred network selection and thus the time waiting;
  • the network adaptive adaptation method of the multi-mode mobile phone can avoid the occurrence of the similarity of the dropped line, the crosstalk and the voice quality to the greatest extent. It is not good, it is difficult to access the Internet and other faults.
  • the wireless interface module in the mobile phone has to detect and report the performance index values of RSSI and BER, which avoids the extra resource overhead of the mobile phone system. Therefore, it has industrial applicability.

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Description

一种多模手机的网络自适应适配方法
技术领域
本发明涉及通信领域, 特别涉及一种多模手机的网络自适应适配方法。
背景技术
由于手机用户数量激增,导致了手机通信网络系统可能处于超负荷运转 状态, 这最终的结果将导致手机在通信时良容易出现类似于掉线、 串音、 话 音质量不好、难以上网等故障现象。现在有越来越多的手机运营商和生产商 开始意识到这一点, 并不断采取相关措施来进一步扩容手机网络系统,提高 手机通信时的语音质量,于是不少手机生产商在成熟的 GSM( Global System for Mobile Communication, 全球移动通讯系统)网络基础之上, 又推出了同 时支持 GSM网络和 CDMA ( Code Division Multiple Access, 码分多址接入) 网络的手机, 或者从用户的费用消费考虑, 推出了支持费用低廉的 PHS ( Personnal Handyphone System, 低功率通讯系统) 的手机。 这样, 使用支 持两种以上通信网络的多模手机,用户可以在多模手机的各个通信网络之间 自由切换,例如使用 GSM/CDMA双模手机,用户可以在 GSM网络与 CDMA 网络之间自由切换,这样可以有效地避免以往可能存在的掉线、通话难和音 质差等问题, 较以前只使用单一 GSM网络的通话更加方便。
目前, 各种无线网络正处在高速发展和演化时期, 对多模的良好支持是 手机终端软件最紧迫的任务之一。 简单说来, 多模手机可以让同一个应用在 不同的网络上完成, 用户可以感觉不到这些差异。 例如, 对于 GSM/CDMA 双模手机, 一个拨打电话的应用, 根据用户的偏好设置, 既可以选择 GSM 网络也可以选择 CDMA网络打出, 甚至用户对选择 GSM网络还是 CDMA 网络根本不关心,只要能够保证良好的通话质量、良好的无线服务就可以了。 因此, 多模手机的首要任务是避免出现类似于掉线、 串音、 话音质量不好、 难以上网等故障现象, 最大程度的为手机用户提供满意的无线业务服务。 目前的多模手机中主要是双模手机,双模手机所使用的模式是由使用者 事先设定的, 这种情况的出发点主要是考虑到双模手机的两个网络同时待 机, 射频可能会互相干扰的难题, 比如 GSM1800和 PHS1900、 CDMA2100 这几个频段由于频点比较靠近, 需要考虑频段接近的情况下会互相干扰, 导 致呼损的情况发生, 由用户进行网络选择, 可以避免该问题。
但是, 用户指定了网络, 就可能出现这样的问题: 在某一个地段的某一 个时间段, 由于用户指定网络的覆盖问题(大多是城郊, 由于用户少, 一般 基站布置少)或者是用户指定网络的繁忙问题(比如商业区和特定的时间段, 用户大量激增的情况) , 可能导致通话质量差、拨号失败或者无法接入等情 况, 让终端用户不得不重新指定网络, 给用户带来麻烦。 发明内容
本发明要解决的技术问题是提供一种多模手机的网络自适应适配方法, 最大限度的满足用户的基本语音呼叫、 短消息操作、 STK ( SIM APPLICATION TOOLKIT, 用户识别模块应用工具包)等无线应用的网络服 务质量。
为解决上述问题, 本发明提出了一种多模手机的网络自适应适配方法, 包括以下步骤:
( a )在所述多模手机中为所有模式对应网络设定一无线环境质量要求 , 包括无线环境质量参数及其应满足的相应阈值;
( b )所述多模手机进行无线通信业务时, 将当前网络或用户指定网络 的所述无线环境质量参数与相应的阈值进行比较,判断无线环境质量是否符 合本网络的无线环境质量要求,如是, 在该当前网络或用户指定网络上进行 所述业务, 结束, 否则启用网络自适应适配功能, 进入步骤(c ) ;
( c )所述多模手机依次获取其它模式网络的无线环境质量参数并与相 应的阔值进行比较,如判断有无线环境质量符合要求的网络, 则选择该网络 作为当前业务使用网络, 结束。
进一步地, 上述方法还可具有以下特点, 所述步骤(c ) 中, 如果其它 莫式网络的无线环境质量都不符合要求, 则继续以下步骤:
( d )计算并比较多模手机各个模式网络的相对无线环境质量参数值, 选择无线环境质量最优的网络进行当前业务, 结束。
进一步地, 上述方法还可具有以下特点, 所述无线环境质量参数为信号 强度指示 RSSI, 当 RSSI值大于其域值时,认为该网络性能符合设定的无线 环境质量要求。
进一步地, 上述方法还可具有以下特点, 所述无线环境廣量参数包括信 号强度指示 RSSI和误码率 BER, 当 RSSI值大于其域值且 BER值小于其域 值时, 认为该网络性能符合设定的无线环境质量要求。
进一步地, 上述方法还可具有以下特点, 所述步骤(d ) 中, 多模手机 比较各个模式网絡中的相对信号强度指示值,将相对信号强度指示值最大的 网络作为无线环境质量最优的网络进行当前业务。
进一步地, 上述方法还可具有以下特点, 所述步骤(d ) 中, 若相对信 号强度指示值相等,则选择相对误码率值最小的网络作为无线环境质量最优 的网络进行当前业务。
进一步地, 上述方法还可具有以下特点, 所述步骤(d ) 中, 多模手机 选择所有支持模式中相对信号强度指示值最大、相对误码率值最小的网络作 为无线环境质量最优的网络进行当前业务。
进一步地, 上述方法还可具有以下特点, 步骤 ) 中, 用户通过将开 启网络自适应适配指示开关设置为开, 来启用网络自适应适配功能。
进一步地, 上述方法还可具有以下特点, 步骤(a ) 中, 所述 RSSI和 BfiR阔值的一种选取方式为:
对于信号强度指示 RSSI, 选取 RSSI阔值等于该网络支持的 RSSI的最 大值与该网络支持的 RSSI的最小值的差的二分之一;
对于误码率 BER,选取阈值 BER等于该网络达到的 BER的最大值与该 网络达到的 BER的最小值的差的二分之一。
进一步地, 上述方法还可具有以下特点, 所述相对信号强度指示值和相 对误码率值的一种选取方式为: 相对信号强度指示值等于当前网络的 RSSI值与该网络支持的 RSSI的 最小值的差比上该网络支持的 RSSI的最大值与该网络支持的 RSSI的最小 值的差的比例值;
相对误码率值等于当前网络的 BER值与该网络达到的 BER的最小值的 差比上该网络达到的 BER的最大值与该网络达到的 BER的最小值的差的比 例值。
进一步地, 上述方法还可具有以下特点, 步骤(c ) 中, 多模手机向网 络发送 AT+CSQ命令要求获取网络的信号强度, 若在设定时间内多模模手 机没有接收到网络返回的响应,或是网络返回指示网络查询失败或是该网络 存在问题的信息, 则转入多模手机的另一个模式网络重复步骤(c )的操作。
本发明提供了一种多模手机中的网络自适应适配方法,该方法在指定网 络或当前网络不能提供良好质量的无线网络服务时, 自动选择当前情况下多 模手机的较优网络进行用户的通信业务,用户无需进行较优网络选取的手动 操作和因此的时间等待; 而且, 这种多模手机的网络自适应适配方法可以最 大程度的避免出现类似于掉线、 串音、话音质量不好、难以上网等故障现象, 同时由于手机中的无线接口模块本来就要对 RSSI和 BER的性能指标值进行 检测上报, 避免了手机系统额外的资源开销。
附图概述
图 1为双模手机电话业务服务器在手机软件中的位置作用示意图。
图 2 为本发明实施例中用网络自适应适配方法选择当前操作网络的处 理示意图。
图 3为图 2中进行双模手机网络自适应适配步骤的具体流程图。 本发明的较佳实施方式
本发明涉及一种多模手机中的网络自适应适配方法,它属于手机终端软 件领域, 更具体的说, 是针对多模手机, 在终端用户进行基本语音呼叫、 短 消息操作、 STK应用等需要同无线接口模块交互的操作时, 自动从多模手机 能够接入的网络中选择网络服务质量满足用户业务需求或者当前质量最优 的网络, 以提供给终端用户最佳的无线服务。
下面将结合附图及实施例对本发明的技术方案进行件细的说明。
实施例一
本实施例以双模手机为例。
无线接口模块位于手机中的操作系统与应用程序之间,起到无线应用接 口的作用。无线接口模块主要提供的功能有:接收应用发来的无线通讯请求, 接收从基站的无线模块发来的命令响应 ,接收从基站的无线模块发来的通知 消息, 保证收发命令的实时性、 命令的优先级控制、 命令的并行处理、 命令 的异常处理、数据緩沖和建立数据呼叫链路连接等。无线接口模块通过调制 解调器同无线网络进行数据交换, 如图 1所示。
考虑到手机无线接口模块同上层应用交互,需要处理应用同无线网络的 交互,这样, 双模手机的网络自适应适配功能就需要放到手机的无线接口模 块来实现, 具体地, 是由无线接口模块中的电话业务服务器来完成的。
首先, 需要在双模手机中设置网络自适应适配的配置文件, 配置文件由 手机生产厂家在手机出厂前设置, 包括两种模式网络中的 RSSI ( Received Signal Strength Indicator, 信号强度指示)和 BER ( Bit Error Rate, 误码率) 的阈值信息, 以及网络自适应适配指示开关 (bNetWorkAtuoSel ) 变量。
RSSI阈值和 BER阔值为可以断定为无线网络服务盾量或者无线环境质 量优良的 RSSI值和 BER值,这两种阅值的选取可根据不同的情况或标准有 多种方式。 本实施例中, 以 (该网络支持的 RSSI的最大值 - 该网络支 持的 RSSI的最小值) 的一半作为 RSSI阈值, 以 (该网络达到的 BER的最 大值 ― 该网络达到的 BER的最小值) 的一半作为 BER阈值。
RSSI阈值用于衡量整个信道频带内的宽带接收功率强弱, 小于该阈值, 表明该网络基站的覆盖范围在此处不佳, 网络无线环境强度的质量较差, 反 之, 大于该阈值, 表明该网络基站在此处的无线环境强度质量优良。 BER 阁值用于衡量无线传输盾量优劣, 大于该阈值,表明在无线传输过程中信息 受到较大的损害, 可能会导致掉线、 数据发送失败等情况, 小于该阔值, 表 明在无线传输过程中信息受到的损害较小, 不影响用户通信。 网络自适应适配指示开关变量用于指示手机的网络自适应适配功能是 否启动, 该开关开启与否由手机用户在使用时手动设置。
如图 2、 图 3所示, 为了完成双模手机中的网络自适应适配功能, 本实 施例包括如下步骤:
步骤 110, 用户设置网络自适应适配指示开关 (bNetWorkAtuoSel ) ; 步骤 120, 用户进行基本语音呼叫、 短消息操作、 STK应用等需要同网 络交互的业务时, 应用发送相关消息到电话业务服务器;
步骤 130, 汉模手机判断网络自适应适配指示开关 bNetWorkAtuoSel是 否开启,如果 bNetWorkAtuoSel指示网络自适应适配开启,则进入步骤 140, 否则, 执行步骤 160, 使用当前网络或是用户指定的网络进行用户业务; 如果 bNetWorkAtuoSel指示网络自适应适配关闭,电话业务服务器把应 用发送的命令转换为 AT ( Attention, 从终端设备发往终端适配层的用于启 动命令行的字符串命令)命令后, 通过当前网络或是用户指定网络对应的调 制解调器发送到当前网络或是用户指定的网络,这种情况存在背景技术中描 述的缺陷。
步骤 140,双模手机获取当前网络或是用户指定网络的 RSSI以及 BER; 获取当前网络或是用户指定网络的 RSSI以及 BER时,由于手机当前网 络都需要在手机显示屏窗口显示信号强度指示,所以在手机軟件电话业务服 务器中可以直接获取 RSSI和 BER的数值。
步骤 150, 双模手机判断 RSSI和 BER的值是否满足 RSSI值在其阔值 之上且 BER值在其阈值之下, 如果是, 则进入步骤 160, 否则, 进入步骤 170;
本实施例是判断 RSSI和 BER的值同其各自阈值的比较结果,但是本发 明在判断无线环境盾量是否符合要求时,也可以采用其它参数和方式, 如只 判断 RSSI值是否在其阈值之上。
如果当前的 RSSI值大于 RSSI阈值,并且当前的 BER值小于 BER阈值, 表示当前网络或是用户指定网络的信号强度很好,误码率很低, 电话业务服 务器选择该网络进行用户选择的无线业务; 反之, 如果或者当前的 RSSI值 小于 RSSI阈值, 或者当前的 BER值大于 BER阈值, 表示或者是该地段当 前网络的基站覆盖不好, 导致信号强度差, 或者是目前该网络繁忙, 传输的 误码率高, 即该网络目前不能为用户提供较好的无线环境盾量。
步骤 160, 继续在当前网络或是用户指定网络上进行相关业务, 结束; 步骤 170, 进行3又模手机网络自适应适配。
如图 3所示, 步骤 170的具体流程包括:
步骤 210, 根据当前网络或是用户指定网络的 RSSI和 BER计算该网络 目前达到的能力比例 RatioRssil和 RatioBerl;
两个模式下网络的无线环境盾量的比较由于网络环境的差别,是很难直 接比较其 RSSI和 BER的性能指标参数值的大小的; 此时, 可以采取相对比 较的方法来进行判断, 通过比较各自网络的相对 RSSI值以及相对 BER值, 从中相对准确的选出目前接收信号强度指示高,误码率低的网络,作为当前 环境下能够提供无线环境质量最优的网络进行用户的无线相关业务, 如图 3 所示。
此处, 相对 RSSI值即 RatioRssi等于 (当前网络的 RSSI值 - 该网 络支持的 RSSI的最小值) 占 (该网络支持的 RSSI的最大值 - 该网络 支持的 RSSI的最小值)的比例值; 相对 BER值即 RatioBer等于(当前网络 的 BER值 - 该网络达到的 BER的最小值) 占 (该网络达到的 BER的 最大值 - 该网络达到的 BER的最小值) 的比例值。 通过比较上述相对 比例值可以较为准确的判断无线环境质量的优劣。
步骤 220,双模手机获取该双模手机另外一个模式下的网络上报的 RSSI 和 BER性能参数,判断该网络的 RSSI和 BER值是否满足 RSSI值在其阈值 之上且 BER值在其阔值之下, 如果是, 执行步骤 260, 否则执行步骤 230;
同样地, 在其它实施方式中, 该处也可以只判断 RSSI值是否在相应的 阈值之上。
另外, 在另一模式网络的 RSSI小于相应阈值或 BER大于相应阈值, 即 两个模式网络的无线环境质量都没有达到要求时,也可以不再执行后续的相 对比较的步骤, 仍选择当前网络或是用户指定网络进行相关业务。 启动双模手机另外一个模式网络的 RSSI和 BER性能参数的检测后,如 果发现没有上 4艮,可以通过手机側的调制解调器同无线协议模块进行交互来 进行获取。
根据 GSM标准协议规定, 电话业务服务器通过调制解调器向网络侧发 送 AT+CSQ ( Command Signal Quality , 信号强度查询命令)命令要求获取 该网络的信号强度, 如果在一定时间内 (比如 500毫秒)没有接收到网络返 回来的响应, 或是网络返回
+CME ERROR:<err>
表明网络查询失败或是该网络存在问题,从而当前网络或是用户指定网 络是双模手机能够接入的网络中最好的网络, 不进行下述步骤。
而操作成功, 网络侧通过
+ CSQ: <rssi>,<ber>
OK
命令来返回 RSSI和 BER性能参数值给电话业务服务器, 如图 1所示。 步骤 230, 根据获得的另外一个模式下网络的 RSSI计算该网络目前达 到的能力比例 RatioRssi2;
步骤 240, 双模手机对能够接入的两个网絡进行比较, 如果 RatioRssil 优于 RatioRssi2, 则进入步骤 250, 否则进入步骤 260;
步骤 250, 选择当前网络或是用户指定网络进行相关业务, 结束; 步骤 260, 选择另一个模式网络进行相关业务, 结束。
若两个网络的 RatioRssi相等,可以进一步将两者的 RatioBer进行比较, 选择 RatioBer较小的网络接入。
最后, 还可以把选出的网络作为用户下次使用的当前网络保存起来, 并 且通知手机显示界面, 这样下次操作时往往可以节省网络的自适应适配时 间。
实施例二
本实施例以包含三种及以上通信网络的多模手机为例,假设多模手机支 持的通信网络数目为 N。
同实施例一,多模手机的网络自适应适配功能也需要放到手机的无线接 口模块来实现, 具体地, 是由无线接口模块中的电话业务服务器来完成的。
首先, 需要在多模手机中设置网络自适应适配的配置文件, 配置文件由 手机生产厂家在手机出厂前设置, 包括 N种模式网络中的 RSSI ( Received Signal Strength Indicator, 信号强度指示)和 BER ( Bit Error Rate, 误码率) 的阈值信息, 以及网络自适应适配指示开关( bNetWorkAtuoSel ) 变量。
RSSI阈值和 BER阔值的选择标准同实施例一。
为了完成多模手机中的网络自适应适配功能, 本实施例包括如下步骤: 步骤 310, 用户设置网络自适应适配指示开关 (bNetWorkAtuoSel ) ; 步骤 320, 用户进行基本语音呼叫、 短消息操作、 STK应用等需要同网 络交互的业务时, 应用发送相关消息到电话业务^^务器;
步骤 330, 多模手机判断网络自适应适配指示开关 bNetWorkAtuoSel是 否开启,如果 bNetWorkAtuoSel指示网络自适应适配开启,则进入步骤 340, 否则, 使用当前网络或是用户指定的网络进行用户业务;
步骤 340,多模手机获取当前网络或是用户指定网络的 RSSI以及 BER; 多模手机获取当前网络或是用户指定网络的 RSSI以及 BER的方式同实 施例一。
步骤 350, 多模手机判断 RSSI和 BER的值是否满足 RSSI值在其阈值 之上且 BER值在其阈值之下,如是, 则进入步骤 360, 否则, 进入步骤 370; 同样地, 本实施例是判断 RSSI和 BER的值同其各自阈值的比较结果, 但是本发明在判断无线环境质量是否符合要求时,也可以采用其它参数和方 式, 如只判断 RSSI值是否在其阔值之上。
步骤 360, 继续在当前网络或是用户指定网络上进行相关业务, 结束; 步骤 370, 进行多模手机网絡自适应适配。
步骤 370的具体流程包括:
步骤 410, 根据当前网絡或是用户指定网络的 RSSI和 BER计算该网络 目前达到的能力比例 RatioRssil和 RatioBerl;
RatioRssi和 RatioBer的计算方法同实施例一。
步骤 420, 多模手机获取该多模手机另一个模式下的网络上报的 RSSI 和 BER性能参数,如果该网络的 RSSI和 BER值满足 RSSI值在其阈值之上 且 BER值在其阈值之下, 则选择该网络进行相关业务, 结束, 否则进入步 驟 430;
同样地, 在其它实施方式中, 该处也可以只判断 RSSI值是否在相应的 阚值之上。
启动多模手机另外一个模式网络的 RSSI和 BER性能参数的检测后,如 果发现没有上报,可以通过手机侧的调制解调器同无线协议模块进行交互来 进行获取。 该网络的信号强度, 如果在一定时间内 (比如 500毫秒)没有接收到网络返 回来的响应, 或是网络返回
+CME ERROR:<err>
表明网络查询失败或是该网络存在问题, 进入步骤 440。
而操作成功, 网络侧通过
+ CSQ: <rssi>,<ber>
OK
命令来返回 RSSI和 BER性能参数值给电话业务服务器。
步骤 430, 根据获得的第二个模式下网络的 RSSI和 BER计算该网络目 前达到的能力比例 RatioRssi ( m )和 RatioBer ( m ) ;
其中, m为 2到 N的自然数。
步骤 440, 重复步骤 420, 直到 N个网络遍历完毕, 进入步骤 450; 步骤 450, 多模手机对多模手机能够接入的 N个网络进行比较, 选择
RatioRssi最优的网络进行相关业务, 结束。 此外, 若多个网络的 RatioRssi相等, 可以进一步比较 RatioBer指标, 选择 RatioBer最小的网络为该多个网络中无线环境质量最优的网络。
最后,还可以同实施例一一样,把选出的网络作为用户下次使用的当前 网络保存起来, 并且通知手机显示界面, 以期节省下次操作网络的自适应适 配时间。
可见, 上述实施例有效的实现了多模手机的网络自适应适配, 尽可能的 为手机用户提供了当前环境下无线环境盾量网络服务质量满足用户业务需 求或者当前质量最优的网络,节省了用户可能因为一个网络不能够满足无线 业务需求而不得不在多次尝试接入不成功后选择其余网络的时间; 同时, 由 于 RSSI和 BER性能参数的上报是周期性的, 不需要增加额外的流程,从而 对多模手机的流程不会有大的更改, 也不会消耗额外的手机系统资源。
值得注意的是, 对基于本发明思想的实施例的简单变形, 也属于本发明 的范围, 例如: 先获取多模手机所有可选网络的信号强度指示 RSSI和误码 率 BER, 比较之后从中选出无线环境质量最优的网络作为当前业务使用网 络, 并将该网络保存作为用户下次使用的当前网络。
当然, 本发明还可有其他多种实施例,在不背离本发明精神及其实质的 情况下, 熟悉本领域的技术人员当可根据本发明作出各种相应的改变和变 形, 但这些相应的改变和变形都应属于本发明所附的权利要求的保护范围。
工业实用性
本发明提供了一种多模手机中的网络自适应适配方法,该方法在指定网 络或当前网络不能提供良好质量的无线网络服务时, 自动选择当前情况下多 模手机的较优网络进行用户的通信业务,用户无需进行较优网络选取的手动 操作和因此的时间等待; 而且, 这种多模手机的网络自适应适配方法可以最 大程度的避免出现类似于掉线、 串音、话音质量不好、难以上网等故障现象, 同时由于手机中的无线接口模块本来就要对 RSSI和 BER的性能指标值进行 检测上报, 避免了手机系统额外的资源开销。 因此, 其具有工业实用性。

Claims

权 利 要 求 书
1、 一种多模手机中的网络自适应适配方法, 其特征在于, 包括以下步 骤: ,
( a )在所述多模手机中为所有模式对应网络设定一无线环境质量要求, 包括无线环境质量参数及其应满足的相应阔值;
( b )所述多模手机进行无线通信业务时, 将当前网络或用户指定网络 的所述无线环境质量参数与相应的阁值进行比较,判断无线环境质量是否符 合本网络的无线环境盾量要求,如是,在该当前网络或用户指定网络上进行 所述业务, 结束, 否则启用网络自适应适配功能, 进入步骤(c ) ;
( c ) 所述多模手机依次获取其它模式网络的无线环境质量参数并与相 应的阈值进行比较, 如判断有无线环境盾量符合要求的网络, 则选择该网络 作为当前业务使用网络, 结束。
2、 如权利要求 1所述的方法, 其特征在于, 所述步骤(c )中, 如果其 它模式网络的无线环境质量都不符合要求, 则继续以下步骤:
( d )计算并比较多模手机各个模式网络的相对无线环境质量参数值, 选择无线环境质量最优的网络进行当前业务, 结束。
3、 如权利要求 1所述的方法, 其特征在于, 所述无线环境盾量参数为 信号强度指示 RSSI, 当 RSSI值大于其域值时,认为该网络性能符合设定的 无线环境质量要求。
4、 如权利要求 1所述的方法, 其特征在于, 所述无线环境盾量参数包 括信号强度指示 RSSI和误码率 BER, 当 RSSI值大于其域值且 BER值小于 其域值时, 认为该网络性能符合设定的无线环境质量要求。
5、 如权利要求 2所述的方法, 其特征在于, 所述步骤(d )中, 多模手 机比较各个模式网络中的相对信号强度指示值,将相对信号强度指示值最大 的网络作为无线环境质量最优的网络进行当前业务。
6、 如权利要求 5所述的方法, 其特征在于, 所述步骤(d )中, 若相对 信号强度指示值相等,则选择相对误码率值最小的网络作为无线环境质量最 优的网络进行当前业务。
7、 如权利要求 2所述的方法, 其特征在于, 所述步骤(d )中, 多模手 机选择所有支持模式中相对信号强度指示值最大、相对误码率值最小的网络 作为无线环境质量最优的网络进行当前业务。
8、 如权利要求 1所述的方法, 其特征在于, 步骤(a )中, 用户通过将 开启网络自适应适配指示开关设置为开, 来启用网络自适应适配功能。
9、 如权利要求 1或 3或 4所述的方法, 其特征在于, 步骤(a )中, 所 述 RSSI和 BER阈值的一种选取方式为:
对于信号强度指示 RSSI, 选取 RSSI阔值等于该网絡支持的 RSSI的最 大值与该网络支持的 RSSI的最小值的差的二分之一;
对于误码率 BER,选取阈值 BER等于该网络达到的 BER的最大值与该 网络达到的 BER的最小值的差的二分之一。
10、 如权利要求 5或 6或 7所述的方法,其特征在于, 所述相对信号强 度指示值和相对误码率值的一种选取方式为:
相对信号强度指示值等于当前网络的 RSSI值与该网络支持的 RSSI的 最小值的差比上该网络支持的 RSSI的最大值与该网络支持的 RSSI的最小 值的差的比例值;
相对误码率值等于当前网絡的 BER值与该网络达到的 BER的最小值的 差比上该网络达到的 BER的最大值与该网络达到的 BER的最小值的差的比 例值。
11、 如权利要求 1所述的方法, 其特征在于, 步骤(c ) 中, 多模手机 向网络发送 AT+CSQ命令要求获取网络的信号强度, 若在设定时间内多模 模手机没有接收到网络返回的响应,或是网络返回指示网络查询失败或是该 网络存在问题的信息, 则转入多模手机的另一个模式网络重复步骤(c ) 的 操作。
PCT/CN2007/003527 2007-10-12 2007-12-11 Network adaptive adapting method of multimode mobile telephone Ceased WO2009046589A1 (en)

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