WO2012155435A1 - 一种支持多载频接入的方法和基站收发信机及接入终端 - Google Patents
一种支持多载频接入的方法和基站收发信机及接入终端 Download PDFInfo
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- WO2012155435A1 WO2012155435A1 PCT/CN2011/080116 CN2011080116W WO2012155435A1 WO 2012155435 A1 WO2012155435 A1 WO 2012155435A1 CN 2011080116 W CN2011080116 W CN 2011080116W WO 2012155435 A1 WO2012155435 A1 WO 2012155435A1
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- carrier frequency
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
- H04W48/10—Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/18—Selecting a network or a communication service
Definitions
- the present invention relates to the field of wireless communication technologies, and in particular, to a method for multi-carrier frequency access and
- CDMA2000 lx Code Division Multiple Access 2000 lx, code division multiple access 2000 standard lx technology
- CDMA2000 HRPD CDMA 2000 High Rate Packet Data, CDMA 2000 High Rate Packet Data
- CDMA2000 HRPD also known as CDMA2000 lx EV-DO
- the cells in the system use multi-carrier communication.
- the system In the existing CDMA2000 lx EV-DO technology, the system currently supports only one carrier frequency channel list, and the system puts all carrier frequencies in the cell into the same carrier frequency channel list.
- the system BTS periodically broadcasts the overhead message through the overhead channel, and the sector parameter in the broadcasted overhead message carries the carrier channel information in the carrier channel list.
- AT Access Terminal
- the AT can support which carrier frequency communication is determined at the factory, and set one of the carrier frequencies to the default carrier frequency. After the AT is turned on, the default carrier frequency is used for network search. After searching the network, And monitoring the overhead channel, obtaining a carrier frequency channel list from the sector parameters of the overhead message received by the overhead channel, determining a carrier frequency used when accessing the network according to the obtained carrier frequency channel list, and using the carrier frequency to access the network. After searching for the network, the AT uses the idle state protocol to perform a negotiation process with the BTS before determining the carrier frequency used for accessing the network. According to the specific idle state protocol used by the AT, the AT determines the carrier frequency used when accessing the network.
- the strategies are different, mainly including the following two situations:
- the idle state protocol used by the AT is EIDP (Enhanced Idle State Protocol) or QIDP (Quick Idle State Protocol).
- the AT will get the negotiation attribute field SupportedCDMAChannels of the Route Update Protocol, which contains one or more frequency points Channel, and the AT deletes the frequency points in the carrier channel list that are not included in the SupportedCDMAChannels field. Then, a frequency selection algorithm such as a hash algorithm is used to calculate the frequency point that needs to be monitored when accessing the network.
- a frequency selection algorithm such as a hash algorithm is used to calculate the frequency point that needs to be monitored when accessing the network.
- the idle state protocol used by the AT is DIDP (Defult Idle State Protocol).
- the result of the AT protocol is not SupportedCDMAChannels.
- the AT uses the Hash algorithm for all carrier frequencies in the carrier channel list. If the result determined by the Hash algorithm is a carrier frequency that the AT does not support. , AT will not be able to access the network.
- the present invention provides a method for supporting multiple carrier frequency access and a BTS and an access terminal, which are used to solve the problem that the access terminal supporting only part of the carrier frequency in the prior art is prone to failure to successfully access in a system supporting multiple carrier frequencies. Network problems.
- the present invention provides a method for supporting multiple carrier frequency access, the method comprising:
- the BTS acquisition operation and maintenance center is supported by the intra-cell terminal according to the carrier frequency used by the cell in the BTS.
- Basic carrier list and extended carrier list configured with probability;
- the BTS configures an overhead message according to the basic carrier frequency list and the extended carrier frequency list, and the configured overhead message carries the basic carrier frequency list and the information of the carrier frequency in the extended carrier frequency list;
- the BTS broadcasts the configured overhead message to the terminal of the cell in the BTS, and the idle state terminal determines the carrier frequency used when accessing the network according to the overhead message and successfully accesses the network.
- the operation and maintenance center configures the basic carrier frequency list and the extended carrier frequency list according to the probability that the carrier frequency used by the cell in the BTS is supported by the terminal in the cell:
- the carrier frequency is configured in the extended carrier frequency list.
- the BTS configures an overhead message according to the basic carrier frequency list and the extended carrier frequency list:
- the number of basic frequency segments is configured according to the number of carrier frequencies in the basic carrier frequency list, and the frequency points of the basic frequency bands are configured according to the carrier frequency of the basic carrier frequency list;
- the extended carrier frequency list is not empty, configuring the number of extended frequency bands according to the number of carrier frequencies in the extended carrier frequency list, according to the extended carrier frequency list. The frequency of each extended frequency band is configured.
- the method further includes:
- the idle state terminal receives the overhead message of the BTS broadcast, and determines whether the basic carrier frequency list in the overhead message includes the carrier frequency when the negotiation carrier frequency is not negotiated with the BTS;
- the idle state terminal selects a carrier frequency from the carrier frequency in the basic carrier frequency list, and uses the selected carrier frequency to access the network; if the carrier frequency is not included, the idle state terminal Access the network with the carrier frequency currently in use.
- the idle state terminal receives the overhead message of the BTS broadcast, and determines whether the basic carrier frequency list or the extended carrier frequency list in the overhead message includes the carrier frequency when the negotiated carrier frequency is obtained through negotiation with the BTS;
- the idle state terminal first deletes the carrier frequency of the basic carrier frequency list and the extended carrier frequency list, and then selects a carrier frequency by using the frequency selection algorithm, and uses the selected carrier frequency to access. Network; if none of the carrier frequencies are included, the idle state terminal accesses the network using the carrier frequency currently being used.
- the invention also provides an operation and maintenance center device, comprising:
- a configuration unit configured to configure a basic carrier frequency list and an extended carrier frequency list according to a probability that the carrier frequency used by the cell in the BTS is supported by the cell terminal;
- a sending unit configured to send the basic carrier frequency list and the extended carrier frequency list to the BTS.
- the configuration unit is specifically configured to: when determining that a carrier frequency used by a cell in the BTS is supported by all the cells of the cell, configure the carrier frequency in a basic carrier frequency list; and determine a carrier frequency used by the cell in the BTS by the cell part terminal. When supported, the carrier frequency is configured in an extended carrier frequency list.
- the present invention also provides a BTS supporting multiple carrier frequency access, including:
- An information collecting module configured to obtain a basic carrier frequency list and an extended carrier frequency list from the operation and maintenance center;
- a channel unit processing module configured to configure an overhead message according to the basic carrier frequency list and the extended carrier frequency list, where the configured overhead message carries the basic carrier frequency list and the information of the carrier frequency in the extended carrier frequency list;
- the broadcast module is configured to broadcast the configured overhead message to the terminal of the cell in the BTS, and the idle terminal determines the carrier frequency used when accessing the network according to the overhead message and successfully accesses the network.
- the channel unit processing module is specifically configured to:
- the number of basic frequency bands is configured according to the number of carrier frequencies in the basic carrier frequency list, and the frequency points of the basic frequency bands are configured according to the carrier frequency of the basic carrier frequency list; Configuring an extended channel flag according to whether the extended carrier frequency list is empty.
- the extended carrier frequency list is not empty, configuring the number of extended frequency bands according to the number of carrier frequencies in the extended carrier frequency list, according to the extended carrier frequency list. The frequency of each extended frequency band is configured.
- the present invention also provides an access terminal that supports multiple carrier frequency access, including:
- a carrier frequency determining module configured to receive an overhead message of the BTS broadcast, and determine whether the basic carrier frequency list in the overhead message includes a carrier frequency when the carrier frequency is not negotiated through negotiation with the BTS;
- the first carrier frequency selection module is configured to determine a carrier frequency in the basic carrier frequency list when the basic carrier frequency list includes the carrier frequency, select a carrier frequency by using a frequency selection algorithm, and use the selected carrier frequency to access the network. ;
- the second carrier frequency selection module is configured to determine that the basic carrier frequency list does not include the carrier frequency, and access the network by using the currently used carrier frequency.
- the present invention also provides another access terminal that supports multiple carrier frequency access, including:
- a carrier frequency existence determining module configured to receive an overhead message of the BTS broadcast, and determine, by determining a negotiated carrier frequency by negotiating with the BTS, determining whether the basic carrier frequency list or the extended carrier frequency list in the overhead message includes a carrier frequency;
- the carrier frequency calculation module is configured to delete the carrier frequency of the basic carrier frequency list and the extended carrier frequency list without negotiating the carrier frequency when the basic carrier frequency list or the extended carrier frequency list includes the carrier frequency, and then select the carrier frequency selection algorithm by using the frequency selection algorithm. a carrier frequency and access to the network using the selected carrier frequency;
- the current carrier frequency selection module is configured to access the network by using the currently used carrier frequency when both the basic carrier frequency list and the extended carrier frequency list do not include the carrier frequency.
- the present invention also provides a system for supporting multiple carrier frequency access, comprising the operation and maintenance center device as described above, the BTS as described above, and the access terminal of any of the above.
- FIG. 1 is a schematic flowchart of a method for supporting multiple carrier frequency access according to an embodiment of the present invention
- FIG. 2 is a flowchart of a preferred embodiment of the present invention
- FIG. 3 is a schematic diagram of a BTS sending a control channel packet to an AT according to an embodiment of the present invention
- FIG. 4 is a structural diagram of an operation and maintenance center device according to an embodiment of the present invention.
- FIG. 5 is a structural diagram of a base transceiver station according to an embodiment of the present invention.
- FIG. 6 is a schematic diagram of internal information transmission of an operation and maintenance center device according to an embodiment of the present invention
- FIG. 7 is a structural diagram of an access terminal according to an embodiment of the present invention
- FIG. 8 is a structural diagram of another access terminal according to an embodiment of the present invention. detailed description
- the invention is based on a CDMA2000 lx EV-DO mobile communication system, and based on the EV-DO wireless protocol, provides a method for supporting multiple carrier frequency access, by which the system can support multiple different frequency bands after various types of The terminal can access the system normally, improve the system access success rate, and improve the performance of the mobile network.
- the method for supporting multiple carrier frequency access provided by the embodiment of the present invention includes:
- Step S101 The BTS acquires a basic carrier frequency list and an extended carrier frequency list configured by the OMC (Operation Maintenance Center) according to the probability that the carrier frequency used by the cell in the BTS is supported by the intra-cell terminal, and the carrier frequency in the basic carrier frequency list.
- the probability of being supported by the terminal in the cell is greater than the probability that the carrier frequency in the extended carrier frequency list is supported by the terminal in the cell; Which carrier frequencies can be supported by the terminal for communication. It is determined at the factory.
- the terminal supports different carrier frequencies.
- the newer version communication protocol is compatible with the older version of the communication protocol, so support is supported.
- the terminals of the newer communication protocol usually also support the carrier frequency used by the older version of the communication protocol. Therefore, the OMC can determine the probability of each carrier frequency being used by the terminal according to the usage of each carrier frequency in different communication protocol versions.
- Step S102 The BTS configures an overhead message according to the basic carrier frequency list and the extended carrier frequency list, so that the configured overhead message carries the basic carrier frequency list and the carrier frequency information in the extended carrier frequency list.
- the overhead message The sector parameters in the carrier frequency list will carry the carrier frequency information in the carrier frequency list.
- the sector parameter is preferably used to carry the basic carrier frequency list and the carrier frequency in the extended carrier frequency list, and the difference is that The carrier frequency list and the carrier frequency in the extended carrier frequency list are distinguished in the sector parameters, that is, the different parameters in the sector parameters respectively carry the basic carrier frequency list and the information of the carrier frequency in the extended carrier frequency list.
- Step S103 The BTS broadcasts the configured overhead message to the terminal of the cell in the BTS, so that the idle state terminal determines the carrier frequency used when accessing the network according to the overhead message and successfully accesses the network.
- the overhead message carries two types of carrier frequency information, that is, a basic carrier frequency list and carrier frequency information in an extended carrier frequency list, and the BTS broadcasts the carrier frequency list information through the broadcast.
- the overhead message is sent to the AT, and the AT receives the broadcast overhead message. Since the basic carrier frequency list and the carrier frequency in the extended carrier frequency list can be distinguished, the correlation can be obtained according to the BTS negotiation (for example, the AT adopts DIDP, EIDP or QIDP, etc.).
- the BTS negotiation for example, the AT adopts DIDP, EIDP or QIDP, etc.
- the idle state terminal when receiving the overhead message of the BTS broadcast, determines the carrier frequency of the frequency selection operation according to the carrier frequency information in the basic carrier frequency list and the extended carrier frequency list and the related negotiation information negotiated with the BTS. Select one for the determined carrier frequency using the frequency selection algorithm Carrier frequency, and use the selected carrier frequency to access the network. Further, if it is determined that the carrier frequency participating in the frequency selection operation is empty, the idle state terminal accesses the network by using the carrier currently being used.
- the OMC configures the basic carrier frequency list and the extended carrier frequency list, and specifically includes: determining that the carrier frequency used by the cell in the BTS is supported by all terminals in the cell, and configuring the carrier frequency in the basic carrier frequency list. And determining that the carrier frequency used by the cell in the BTS is supported by a part of the terminal in the cell, and configuring the carrier frequency in the extended carrier frequency list.
- the carrier frequency used in the BTS cell is determined, and the OMC determines the oldest version of the communication according to the carrier frequency used in each communication protocol version supported by the BTS.
- the carrier frequency used in the protocol is the carrier frequency supported by all terminals in the cell, and the other carrier frequency is the carrier frequency supported by some terminals in the cell.
- the BTS configures the overhead message according to the basic carrier frequency list and the extended carrier frequency list, and specifically includes the following configurations:
- ExtendedChannellncluded an extended channel flag ( ExtendedChannellncluded) according to whether the extended carrier frequency list is empty, and when the extended carrier frequency list is not empty, configuring the extended frequency band number according to the number of carrier frequencies in the extended carrier frequency list (ExtendedChannelCount) , configure the frequency of each extended band ( ExtendedChannel ) according to the carrier frequency of the extended carrier list.
- the above ChannelCount, Channel, ExtendedChannellncluded, ExtendedChannelCount, ExtendedChannel are configured to be zero.
- the negotiated carrier frequency can be obtained in the embodiment of the present invention, because different idle state terminals use different protocols when negotiating with the BTS before accessing the network. Obtain the terminal that negotiates the carrier frequency and determine the frequency of participation.
- the strategy of calculating the carrier frequency is different, as follows:
- the idle state terminal receives the overhead message of the BTS broadcast, and determines that when the carrier frequency is not negotiated through negotiation with the BTS, the following strategy is used to determine the carrier frequency of the frequency selection operation:
- the idle state terminal uses the carrier frequency in the basic carrier frequency list as a carrier frequency participating in the frequency selection operation, and on the basic carrier frequency list Frequency, select a carrier frequency by using the frequency selection algorithm, and use the selected carrier frequency to access the network; otherwise, the idle state terminal accesses the network by using the carrier currently being used.
- the idle state terminal receives the overhead message of the BTS broadcast, and determines that when the negotiated carrier frequency is negotiated with the BTS, the following strategy is used to determine the carrier frequency of the frequency selection operation:
- the idle state terminal deletes the basic carrier frequency list and the carrier frequency of the extended carrier frequency list that is not the negotiated carrier frequency.
- the carrier frequency as the carrier frequency participating in the frequency selection operation, selects a carrier frequency by using the frequency selection algorithm, and accesses the network using the selected carrier frequency; otherwise, the idle state terminal utilizes the carrier frequency currently used to access the network. .
- the AT uses DIDP, EIDP or QIDP to negotiate with the BTS as an example, and a preferred embodiment of the embodiment of the present invention is provided.
- the method mainly includes the following steps:
- Step S201 the OMC configures a basic carrier frequency list and an extended carrier frequency list, and sends the same to the OMC.
- Step S202 The BTS obtains the basic carrier frequency list and the extended carrier frequency list from the OMC, and updates the sector parameters in the overhead message according to the basic carrier frequency list and the extended carrier frequency list, and repackages the sector parameters in the following manner:
- the ChannelCount of the sector parameter and the Channel field of each basic frequency band are set to corresponding configuration values.
- the ExtendedChannellncluded, ExtendedChannelCount and the ExtendedChannel field of each extended frequency band of the sector parameter message are set to corresponding configuration values.
- the specific configuration method refer to the foregoing embodiment.
- the ChannelCount, Channel, ExtendedChannellncluded, ExtendedChannelCount, and ExtendedChannel of the sector parameter message are set to corresponding configuration values, such as 0.
- Step S203 The BTS periodically inserts an overhead message including a sector parameter into a control channel packet, as shown in FIG. 3, and transmits the data through the control channel.
- Step S204 The AT side of the access terminal searches for the network, and listens to the overhead channel, and receives and processes the overhead message in the control channel packet, and adopts the following processing manner:
- the AT After the AT starts searching for the network, it will listen to the overhead channel. If it is determined according to the Sector Parameters message that the basic carrier frequency list does not contain any carrier frequency, the AT monitors the current carrier frequency. If it is determined that the basic carrier frequency list contains the carrier frequency, the AT uses the Hash algorithm to select a carrier frequency in the basic carrier frequency list and access the network using the selected carrier frequency.
- the AT After the AT starts searching for the network, it will listen to the overhead channel. If it is determined according to the Sector Parameters message that the basic carrier list and the extended carrier list do not contain any carrier frequency, the AT listens to the current The carrier frequency being used; If the basic carrier list or the extended carrier list contains the carrier frequency, the AT first constructs a carrier set S for performing the hash algorithm:
- S1 is a collection of a basic carrier frequency list and an extended carrier frequency list
- the frequency points included in SupportedCDMAChannels remove the frequency points not included in SupportedCDMAChannels from S1, and get S;
- the AT uses the Hash algorithm to select a carrier frequency and access the network using the selected carrier frequency.
- Step S205 The access terminal AT initiates a connection establishment (Connection Request) at the current listening carrier frequency, and successfully accesses the system.
- the embodiment of the present invention is based on a CDMA2000 EV-DO mobile communication system.
- the access network side transmits the frequency band related information to the access terminal through the broadcast overhead message, and the access terminal receives the broadcast overhead message.
- the packet coding mode of the control channel sector parameter overhead message is changed, so that different types of ATs (supporting DIDP, EIDP or QIDP) are processed according to relevant negotiation information and then accessed on an appropriate carrier frequency, which can greatly improve access.
- the success rate of the system is conducive to improving the success rate of system access, increasing the capacity of the entire mobile network, and improving user satisfaction.
- the embodiment of the present invention further provides an operation and maintenance center device, a BTS supporting multiple carrier frequency access, and an access terminal supporting multiple carrier frequency access, because these devices solve the problem.
- the principle is similar to the method for supporting multi-carrier access. Therefore, the implementation of these devices can be referred to the implementation of the method, and the repeated description will not be repeated.
- An embodiment of the present invention provides an operation and maintenance center device, as shown in FIG. 4, including: a configuration unit, configured to configure a basic carrier frequency list and an extended carrier frequency list according to a probability that a carrier frequency used by a cell in a BTS is supported by a cell terminal, Where the carrier frequency in the basic carrier frequency list is used by the cell terminal The probability of being supported is greater than the probability that the carrier frequency in the extended carrier frequency list is supported by the cell terminal; and the sending unit is configured to send the basic carrier frequency list and the extended carrier frequency list to the BTS.
- the configuration unit determines that the carrier frequency used by the cell in the BTS is supported by all the terminals of the cell, and configures the carrier frequency in the basic carrier frequency list; when determining that the carrier frequency used by the cell in the BTS is supported by the cell part terminal, The carrier frequency is configured in an extended carrier frequency list.
- the embodiment of the present invention further provides a BTS that supports multiple carrier frequency access.
- the method includes: an information collecting module, configured to obtain a basic carrier frequency list and an extended carrier frequency list from an operation and maintenance center;
- a channel unit processing module configured to configure an overhead message according to the basic carrier frequency list and the extended carrier frequency list, so that the configured overhead message carries the basic carrier frequency list and the information of the carrier frequency in the extended carrier frequency list;
- the broadcast module is configured to broadcast the configured overhead message to the terminal of the cell in the BTS, so that the idle state terminal determines the carrier frequency used when accessing the network according to the overhead message and successfully accesses the network.
- the channel unit processing module is specifically configured to:
- the number of basic frequency segments is configured according to the number of carrier frequencies in the basic carrier frequency list, and the frequency points of the basic frequency bands are configured according to the carrier frequency of the basic carrier frequency list;
- the extended carrier frequency list is not empty, configuring the number of extended frequency bands according to the number of carrier frequencies in the extended carrier frequency list, according to the extended carrier frequency list. The frequency of each extended frequency band is configured.
- the information collecting module sends a set overhead channel command message (SetFLMOverheadMessageCmd) to the channel unit processing module;
- the channel unit processing module repackages the sector parameter overhead message and sends a set overhead channel command acknowledgement message (SetFLMOverheadMessageAck) to the information collection module.
- An embodiment of the present invention further provides an access terminal that supports multiple carrier frequency access. As shown in FIG. 7, the method includes:
- a carrier frequency determining module configured to receive an overhead message of the BTS broadcast, and determine whether the basic carrier frequency list in the overhead message includes a carrier frequency when the carrier frequency is not negotiated through negotiation with the BTS;
- the first carrier frequency selection module is configured to determine a carrier frequency in the basic carrier frequency list when the basic carrier frequency list includes the carrier frequency, select a carrier frequency by using a frequency selection algorithm, and use the selected carrier frequency to access the network. ;
- the second carrier frequency selection module is configured to determine that the basic carrier frequency list does not include the carrier frequency, and access the network by using the currently used carrier frequency.
- the embodiment of the present invention further provides another access terminal supporting multiple carrier frequency access, as shown in FIG. 8, which includes:
- a carrier frequency existence determining module configured to receive an overhead message of the BTS broadcast, and determine, by determining a negotiated carrier frequency by negotiating with the BTS, determining whether the basic carrier frequency list or the extended carrier frequency list in the overhead message includes a carrier frequency;
- the carrier frequency calculation module is configured to: when the basic carrier frequency list or the extended carrier frequency list includes the carrier frequency, first delete the carrier frequency of the basic carrier frequency list and the extended carrier frequency list that are not the negotiation carrier frequency, and then select the frequency selection algorithm by using the frequency selection algorithm. a carrier frequency and access to the network using the selected carrier frequency;
- the current carrier frequency selection module is configured to access the network by using the currently used carrier frequency when both the basic carrier frequency list and the extended carrier frequency list do not include the carrier frequency.
- the embodiment of the present invention further provides a system for supporting multiple carrier frequency access, including the operation and maintenance center device according to the embodiment of the present invention, the BTS according to the embodiment of the present invention, and any access terminal in the embodiment of the present invention.
- embodiments of the present invention can be provided as a method, system, or computer program product. Therefore, the present invention can be implemented in an entirely hardware embodiment, fully software implemented For example, or in combination with an embodiment of software and hardware aspects. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
- computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
- the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
- the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
- These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
- the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.
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Abstract
本发明公开了一种多载频接入的方法和BTS及接入终端,所述方法包括:BTS获取操作维护中心根据BTS内小区使用的载频被小区内终端支持的概率而配置的基本载频列表和扩展载频列表;BTS根据所述基本载频列表和扩展载频列表配置开销消息,配置后的开销消息携带基本载频列表和扩展载频列表中的载频的信息;BTS将配置后的开销消息广播给BTS内小区的终端,空闲态终端根据所述开销消息确定接入网络时使用的载频并成功接入网络。本发明还公开了一种支持多载频接入的系统,通过应用上述方法使得系统在支持多个频段的情况下,各种类型的终端都可以正常接入,提高了网络接入的成功率及移动网络的接入性能。
Description
一种支持多载频接入的方法和基站收发信机及接入终端 技术领域
本发明涉及无线通信技术领域, 尤其涉及一种多载频接入的方法和
BTS ( Base Transceiver Station, 基站收发信机)及接入终端。 背景技术
随着信息时代的来临, 数据业务向多样性、 大容量性和非对称性方向 发展, CDMA2000 lx( Code Division Multiple Access 2000 lx,码分多址 2000 标准 lx技术) 系统数据业务能力有限, 不能满足未来发展的需求。 为了满 足日益增长的数据业务, 美国高通公司基于 CDMA2000 lx 提出了 CDMA2000 HRPD ( CDMA 2000 High Rate Packet Data, 码分多址 2000标 准高速分组数据技术) 的移动通信技术。 CDMA2000 HRPD 又称 CDMA2000 lx EV-DO, 是一种专为移动数据应用而进行了优化的无线传送 技术, 系统内小区使用多载频通信。
在现有 CDMA2000 lx EV-DO技术中, 目前系统只支持一种载频信道 列表, 系统将小区内所有载频都放入同一种载频信道列表中。 系统 BTS会 定期通过开销信道广播开销消息, 所广播的开销消息中的扇区参数携带了 载频信道列表中的载频信道信息。
AT ( Access Terminal,接入终端 )能够支持哪些载频进行通信在出厂时 已确定, 并设置其中一个载频为缺省载频, AT开机后使用缺省载频进行网 络搜索, 搜索到网络后, 会监听开销信道, 从开销信道接收的开销消息的 扇区参数中获取载频信道列表, 根据获取的载频信道列表确定接入网络时 使用的载频, 并使用该载频接入网络。
AT在搜索到网络后, 在确定接入网络时使用的载频之前, 会使用空闲 态协议与 BTS执行协商过程,根据具体使用的空闲态协议的不同, AT确定 接入网络时使用的载频的策略不同, 主要包括如下两种情况:
1 ) AT使用的空闲状态协议为 EIDP ( Enhanced Idle State Protocol, 增 强空闲状态协议 )或 QIDP ( Quick Idle State Protocol, 快速空闲状态协议)。
如果 AT使用 EIDP或 QIDP,则 AT会得到路由更新协议的协商属性字 段 SupportedCDMAChannels, 该字段包含了一个或多个频点 Channel, AT 据此删除载频信道列表中不包含在 SupportedCDMAChannels 字段中的频 点, 然后利用频点选择算法如哈希 (Hash )算法计算得到接入网络时需要 监听的频点。
2 ) AT使用的空闲状态协议为 DIDP ( Defult Idle State Protocol, 缺省空 闲状态协议)。
如果使用 DIDP协议, AT的协议结果没有 SupportedCDMAChannels , 按照现有协议, AT会对载频信道列表中的所有载频利用 Hash算法进行计 算, 如果 Hash算法确定出的结果是一个 AT不支持的载频, AT将无法接入 网络。
因此, 现有技术中, 在支持多载频的系统中只支持部分载频的接入终 端 AT容易出现无法成功接入网络的情况。 发明内容
本发明提供一种支持多载频接入的方法和 BTS及接入终端, 用以解决 现有技术中只支持部分载频的接入终端在支持多载频的系统中容易出现无 法成功接入网络的问题。
本发明提供一种支持多载频接入的方法, 所述方法包括:
BTS获取操作维护中心根据 BTS内小区使用的载频被小区内终端支持
的概率而配置的基本载频列表和扩展载频列表;
BTS根据所述基本载频列表和扩展载频列表配置开销消息, 配置后的 开销消息携带基本载频列表和扩展载频列表中的载频的信息;
BTS将配置后的开销消息广播给 BTS内小区的终端, 空闲态终端根据 所述开销消息确定接入网络时使用的载频并成功接入网络。
进一步地, 所述操作维护中心根据 BTS内小区使用的载频被小区内终 端支持的概率配置基本载频列表和扩展载频列表为:
确定 BTS内小区使用的载频被小区内所有终端支持时, 将所述载频配 置在基本载频列表;
确定 BTS内小区使用的载频被小区内部分终端支持时, 将所述载频配 置在扩展载频列表。
进一步地, 所述 BTS根据所述基本载频列表和扩展载频列表配置开销 消息为:
当基本载频列表不为空时, 根据基本载频列表中载频个数配置基本频 段个数, 根据基本载频列表的载频配置各基本频段的频点;
根据扩展载频列表是否为空配置扩展信道标志位, 当所述扩展载频列 表不为空时, 根据扩展载频列表中的载频个数配置扩展频段个数, 根据扩 展载频列表的载频配置各扩展频段的频点。
进一步地, 所述方法还包括:
空闲态终端接收到 BTS广播的开销消息,且确定通过与 BTS协商未得 到协商载频时, 确定所述开销消息中的基本载频列表是否包含载频;
如果包含载频, 则空闲态终端对基本载频列表中的载频, 利用频点选 择算法选择出一个载频, 并使用选择出的载频接入网络; 如果不包含载频, 空闲态终端利用当前正在使用的载频接入网络。
进一步地, 所述方法还包括:
空闲态终端接收到 BTS广播的开销消息,且确定通过与 BTS协商得到 协商载频时, 确定所述开销消息中的基本载频列表或扩展载频列表是否包 含载频;
如果包含载频, 则空闲态终端首先删除基本载频列表和扩展载频列表 中不是协商载频的载频, 再利用频点选择算法选择出一个载频, 并使用选 择出的载频接入网络; 如果均不包含载频, 空闲态终端利用当前正在使用 的载频接入网络。
本发明还提供一种操作维护中心装置, 包括:
配置单元, 用于根据 BTS内小区使用的载频被小区终端支持的概率配 置基本载频列表和扩展载频列表;
发送单元, 用于向 BTS发送所述基本载频列表和扩展载频列表。
其中, 所述配置单元, 具体用于在确定 BTS内小区使用的载频被小区 所有终端支持时, 将所述载频配置在基本载频列表; 确定 BTS内小区使用 的载频被小区部分终端支持时, 将所述载频配置在扩展载频列表。
本发明还提供一种支持多载频接入的 BTS, 包括:
信息收集模块, 用于从操作维护中心获取基本载频列表和扩展载频列 表;
信道单元处理模块, 用于根据所述基本载频列表和扩展载频列表配置 开销消息 , 配置后的开销消息携带基本载频列表和扩展载频列表中的载频 的信息;
广播模块, 用于将配置后的开销消息广播给 BTS内小区的终端, 空闲 态终端根据所述开销消息确定接入网络时使用的载频并成功接入网络。
其中, 所述信道单元处理模块具体用于:
当基本载频列表不为空时, 根据基本载频列表中载频个数配置基本频 段个数, 根据基本载频列表的载频配置各基本频段的频点;
根据扩展载频列表是否为空配置扩展信道标志位, 当所述扩展载频列 表不为空时, 根据扩展载频列表中的载频个数配置扩展频段个数, 根据扩 展载频列表的载频配置各扩展频段的频点。
本发明还提供一种支持多载频接入的接入终端, 包括:
载频确定模块, 用于接收到 BTS广播的开销消息, 且确定通过与 BTS 协商未得到协商载频时, 确定所述开销消息中的基本载频列表是否包含载 频;
第一载频选择模块, 用于确定基本载频列表包含载频时, 对基本载频 列表中的载频, 利用频点选择算法选择出一个载频, 并使用选择出的载频 接入网络;
第二载频选择模块, 用于确定基本载频列表未包含载频时, 利用当前 正在使用的载频接入网络。
本发明还提供另一种支持多载频接入的接入终端, 包括:
载频存在确定模块, 用于接收到 BTS广播的开销消息, 且确定通过与 BTS协商得到协商载频时, 确定所述开销消息中的基本载频列表或扩展载 频列表是否包含载频;
载频计算模块, 用于在基本载频列表或扩展载频列表包含载频时, 先 删除基本载频列表和扩展载频列表中不是协商载频的载频, 再利用频点选 择算法选择出一个载频, 并使用选择出的载频接入网络;
当前载频选择模块, 用于在基本载频列表和扩展载频列表均不包含载 频时, 利用当前正在使用的载频接入网络。
本发明还提供一种支持多载频接入的系统, 包括如上所述的操作维护 中心装置、 如上所述的 BTS和上述任一种的接入终端。
本发明有益效果如下: 针对现有 CDMA2000 lx EV-DO技术中, 只支 持部分频段的终端在支持多频段系统中很容易出现无法成功接入网络的问
题, 重点提出了一种多载频接入的方法, 通过应用该方法使得系统在支持 多个频段的情况下, 各种类型的终端都可以正常接入, 提高了网络接入的 成功率及移动网络的接入性能。 附图说明
图 1为本发明实施例提供的支持多载频接入的方法流程示意图; 图 2为本发明实施例的优选实施方式的流程图;
图 3为本发明实施例中 BTS向 AT发送控制信道包示意图;
图 4为本发明实施例提供的一种操作维护中心装置结构图;
图 5为本发明实施例提供的一种基站收发信机结构图;
图 6为本发明实施例提供的操作维护中心装置内部信息传输示意图; 图 7为本发明实施例提供的一种接入终端结构图;
图 8为本发明实施例提供的另一种接入终端结构图。 具体实施方式
下面结合附图和实施例, 对本发明的具体实施方式作进一步详细的描 述。
本发明基于 CDMA2000 lx EV-DO移动通信系统,基于 EV-DO无线协 议基础, 提供了一种支持多载频接入的方法, 通过此方法能够使得系统支 持多个不同频段之后, 各种类型的终端都可以正常接入系统, 提高系统接 入成功率, 提高移动网络的性能, 如图 1 所示, 本发明实施例提供的支持 多载频接入的方法包括:
步驟 S101 , BTS获取 OMC ( Operation Maintenance Center, 操作维护 中心)根据 BTS内小区使用的载频被小区内终端支持的概率而配置的基本 载频列表和扩展载频列表, 基本载频列表中载频被小区内终端支持的概率 大于扩展载频列表中载频被小区内终端支持的概率;
终端能够支持哪些载频进行通信在出厂时已确定, 根据终端通信所支 持的通信协议版本不同, 则终端支持的载频不同, 一般支持较新版本通信 协议兼容较旧版本的通信协议, 因此支持较新通信协议的终端通常也支持 较旧版本通信协议所使用的载频,因此 OMC可以根据各载频在不同通信协 议版本的使用情况, 确定各载频被终端使用的概率大小。
步驟 S102, BTS根据所述基本载频列表和扩展载频列表配置开销消息, 使配置后的开销消息携带基本载频列表和扩展载频列表中的载频的信息; 根据现有机制, 开销消息中的扇区参数 ( Sector Parameters )会携带载 频列表中的载频信息, 则本发明实施例优选采用扇区参数携带基本载频列 表和扩展载频列表中的载频, 不同的是将基本载频列表和扩展载频列表中 的载频在扇区参数中进行区分, 即利用扇区参数中不同的参数分别携带基 本载频列表和扩展载频列表中的载频的信息。
步驟 S103 , BTS将配置后的开销消息广播给 BTS内小区的终端, 以使 空闲态终端根据所述开销消息确定接入网络时使用的载频并成功接入网 络。
本发明实施例提供的支持多载频接入的方法中, 开销消息携带了两类 载频信息, 即基本载频列表和扩展载频列表中的载频信息, BTS 将载频列 表信息通过广播开销消息发送给 AT, AT接收广播的开销消息, 由于可以 区分基本载频列表和扩展载频列表中的载频,因此可以根据与 BTS协商(如 AT采用 DIDP、 EIDP或 QIDP等 )得到的相关协商信息, 决策对哪些载频 进行频点选择运算, 从而使 AT得到的频点为 AT主持的频点的几率更大, 从而能够提高 AT接入的成功率, 提高移动网络的性能。
优选地, 空闲态终端接收到 BTS广播的开销消息时, 根据基本载频列 表和扩展载频列表中的载频信息, 及与 BTS协商得到的相关协商信息, 确 定参与频点选择运算的载频; 对确定的载频利用频点选择算法选择出一个
载频, 并使用选择出的载频接入网络。 进一步地, 如果确定参与频点选择 运算的载频为空, 则空闲态终端利用当前正在使用的载频接入网络。
优选地, 本发明实施例中 OMC配置基本载频列表和扩展载频列表, 具 体包括: 确定 BTS内小区使用的载频被小区内所有终端支持时, 将所述载 频配置在基本载频列表; 确定 BTS内小区使用的载频被小区内部分终端支 持时, 将所述载频配置在扩展载频列表。
对于 OMC来说, BTS所支持哪些通信协议版本是确定的, 因此 BTS 小区内使用的载频是确定的, 则 OMC根据 BTS所支持各通信协议版本中 使用的载频, 确定最旧版本的通信协议中使用的载频为小区内所有终端支 持的载频, 其它载频为小区内部分终端支持的载频。
对于 BTS来说, BTS根据基本载频列表和扩展载频列表配置开销消息 具体包括如下配置:
1 ) 当基本载频列表不为空时, 根据基本载频列表中载频个数配置基本 频段个数( ChannelCount ) , 根据基本载频列表的载频配置各基本频段的频 点 (Channel ) ;
2 ) 根据扩展载频列表是否为 空配置扩展信道标志位 ( ExtendedChannellncluded ) , 当所述扩展载频列表不为空时, 根据扩展载 频列表中的载频个数配置扩展频段个数(ExtendedChannelCount ) , 根据扩 展载频列表的载频配置各扩展频段的频点 ( ExtendedChannel ) 。
优选地, 如果基本载频列表和扩展载频列表均为空, 则将上述 ChannelCount、 Channel、 ExtendedChannellncluded、 ExtendedChannelCount , ExtendedChannel配置为零。
由于不同的空闲态终端在接入网络前与 BTS协商时采用的协议不同, 最终协商得到的相关协商信息也不同, 根据现有的协商协议, 本发明实施 例中协商能够得到协商载频和未得到协商载频的终端, 确定参与频点选择
运算的载频的策略不同, 具体如下:
1 ) 空闲态终端接收到 BTS广播的开销消息, 且确定通过与 BTS协商 未得到协商载频时, 采用如下策略确定参与频点选择运算的载频:
确定所述开销消息中的基本载频列表是否包含载频; 如果是, 则空闲 态终端将基本载频列表中的载频作为参与频点选择运算的载频, 对基本载 频列表中的载频, 利用频点选择算法选择出一个载频, 并使用选择出的载 频接入网络; 否则, 空闲态终端利用当前正在使用的载频接入网络。
2 ) 空闲态终端接收到 BTS广播的开销消息, 且确定通过与 BTS协商 得到协商载频时, 采用如下策略确定参与频点选择运算的载频:
确定所述开销消息中的基本载频列表或扩展载频列表是否包含载频; 如果是, 则空闲态终端将删除基本载频列表和扩展载频列表中不是协商载 频的载频后得到的载频, 作为参与频点选择运算的载频, 利用频点选择算 法选择出一个载频, 并使用选择出的载频接入网络; 否则, 空闲态终端利 用当前正在使用的载频接入网络。
下面以基于 CDMA2000 EV-DO移动通信系统, AT采用 DIDP、 EIDP 或 QIDP与 BTS协商为例, 给出本发明实施例的优选实施方式, 如图 2所 示, 主要包括步驟:
步驟 S201 , OMC 配置基本载频列表和扩展载频列表, 并将其发送给
BTS;
具体地, 如果存在所有终端都支持的载频, 则将这些载频配置到基本 载频列表, 如果不存在所有终端都支持的载频, 则基本载频列表为空; 如 果存在部分终端都支持的载频, 则将这些载频配置到扩展信道列表, 如果 不存在部分终端都支持的载频, 则扩展载频列表为空, 因此, 对于任一终 端都不支持的载频既不会配置在基本载频列表也不会配置在扩展载频列 表。
步驟 S202, BTS从 OMC获取基本载频列表和扩展载频列表, 根据基 本载频列表和扩展载频列表更新开销消息中的扇区参数, 重新对扇区参数 进行如下方式打包:
1 ) 当根据开销消息确定基本载频列表不为空时, 将扇区参数的 ChannelCount和各个基本频段的 Channel字段设置为相应的配置值,具体配 置方法见上述实施例。
2 ) 当根据开销消息确定扩展载频列表不为空时, 将扇区参数消息的 ExtendedChannellncluded 、 ExtendedChannelCount 和各个扩展频段的 ExtendedChannel字段设置为相应的配置值, 具体配置方法见上述实施例。
3 ) 当根据开销消息配置确定基本信道列表和扩展信道列表都为空时, 将扇区参数消息的 ChannelCount , Channel , ExtendedChannellncluded , ExtendedChannelCount和 ExtendedChannel设置为相应的配置值, 如配置为 0。
步驟 S203 , BTS定时将包含扇区参数的开销消息打进控制信道包中, 如图 3所示, 并通过控制信道进行发送。
步驟 S204, 接入终端 AT侧搜索到网络, 并监听开销信道, 接收并处 理控制信道包中的开销消息, 具体采用如下处理方式:
1 )对于支持 DIDP的 AT
AT开机搜索到网络后, 会监听开销信道。 如果根据 Sector Parameters 消息确定基本载频列表没包含任何载频, 则 AT监听当前载频。如果确定基 本载频列表包含载频, 则 AT使用 Hash算法在基本载频列表中选择一个载 频, 并使用选择的载频接入网络。
2 )对于支持 EIDP和 QIDP的 AT
AT开机搜索到网络后, 会监听开销信道。 如果根据 Sector Parameters 消息确定基本载频列表和扩展载频列表都没包含任何载频,则 AT监听当前
正在使用的载频; 如果基本载频列表或扩展载频列表包含载频, AT首先构 造用来执行 Hash算法的载频集合 S:
1 ) S1为基本载频列表与扩展载频列表的合集;
2 ) 根据路 由 更新 ( Route Update ) 协议 的 协 商属 性 ( SupportedCDMAChannels ) , 确定与 BTS 协商得到的协商载频, 即
SupportedCDMAChannels中 包含的频点, 从 S1 中去掉不包含在 SupportedCDMAChannels中的频点, 得到 S;
3 )得到 8后, AT使用 Hash算法选择一个载频, 并使用选择的载频接 入网络。
步驟 S205 , 接入终端 AT在当前监听载频发起连接建立 (Connection Request ) , 成功接入系统。 本发明实施例基于 CDMA2000 EV-DO移动通信系统, 在 EV-DO移动 通信网中, 接入网侧将频段相关信息通过广播开销消息发送给接入终端, 接入终端接收广播的开销消息, 通过改变控制信道扇区参数开销消息的组 包编码方式, 使得不同类型的 AT (支持 DIDP, EIDP或者 QIDP )根据相 关协商信息进行算法处理后在适当的载频上进行接入, 能够大大提高接入 系统的成功率, 有利于提高系统接入成功率, 提高整个移动网络的容量, 提高用户满意度。
基于同一发明构思, 本发明实施例中还提供了一种操作维护中心装置、 一种支持多载频接入的 BTS、 一种支持多载频接入的接入终端, 由于这些 设备解决问题的原理与一种支持多载波接入的方法相似, 因此这些设备的 实施可以参见方法的实施, 重复之处不再赘述。
本发明实施例提供一种操作维护中心装置, 如图 4所示, 包括: 配置单元, 用于根据 BTS内小区使用的载频被小区终端支持的概率配 置基本载频列表和扩展载频列表, 其中, 基本载频列表中载频被小区终端
支持的概率大于扩展载频列表中载频被小区终端支持的概率; 发送单元, 用于向 BTS发送所述基本载频列表和扩展载频列表。
优选地, 所述配置单元确定 BTS内小区使用的载频被小区所有终端支 持时, 将所述载频配置在基本载频列表; 确定 BTS内小区使用的载频被小 区部分终端支持时, 将所述载频配置在扩展载频列表。
本发明实施例还提供一种支持多载频接入的 BTS, 如图 5所示, 包括: 信息收集模块, 用于从操作维护中心获取基本载频列表和扩展载频列 表;
信道单元处理模块, 用于根据所述基本载频列表和扩展载频列表配置 开销消息 , 使配置后的开销消息携带基本载频列表和扩展载频列表中的载 频的信息;
广播模块, 用于将配置后的开销消息广播给 BTS内小区的终端, 以使 空闲态终端根据所述开销消息确定接入网络时使用的载频并成功接入网 络。
优选地, 所述信道单元处理模块具体用于:
当基本载频列表不为空时, 根据基本载频列表中载频个数配置基本频 段个数, 根据基本载频列表的载频配置各基本频段的频点;
根据扩展载频列表是否为空配置扩展信道标志位, 当所述扩展载频列 表不为空时, 根据扩展载频列表中的载频个数配置扩展频段个数, 根据扩 展载频列表的载频配置各扩展频段的频点。
优选地, 如图 6所示, 所述信息收集模块在从操作维护中心获取基本 载频列表和扩展载频列表后, 发送设置开销信道命令消息 ( SetFLMOverheadMessageCmd )给所述信道单元处理模块; 所述信道单元 处理模块重新对扇区参数开销消息进行打包, 并发送设置开销信道命令确 认消息 ( SetFLMOverheadMessageAck )给信息收集模块。
本发明实施例还提供一种支持多载频接入的接入终端, 如图 7所示, 包括:
载频确定模块, 用于接收到 BTS广播的开销消息, 且确定通过与 BTS 协商未得到协商载频时, 确定所述开销消息中的基本载频列表是否包含载 频;
第一载频选择模块, 用于确定基本载频列表包含载频时, 对基本载频 列表中的载频, 利用频点选择算法选择出一个载频, 并使用选择出的载频 接入网络;
第二载频选择模块, 用于确定基本载频列表未包含载频时, 利用当前 正在使用的载频接入网络。
本发明实施例还提供另一种支持多载频接入的接入终端如图 8所示, 包括:
载频存在确定模块, 用于接收到 BTS广播的开销消息, 且确定通过与 BTS协商得到协商载频时, 确定所述开销消息中的基本载频列表或扩展载 频列表是否包含载频;
载频计算模块, 用于在基本载频列表或扩展载频列表包含载频时, 首 先删除基本载频列表和扩展载频列表中不是协商载频的载频, 再利用频点 选择算法选择出一个载频, 并使用选择出的载频接入网络;
当前载频选择模块, 用于在基本载频列表和扩展载频列表均不包含载 频时, 利用当前正在使用的载频接入网络。
本发明实施例还提供一种支持多载频接入的系统, 包括本发明实施例 所述的操作维护中心装置、 本发明实施例所述的 BTS以及本发明实施例中 任一接入终端。
本领域内的技术人员应明白, 本发明的实施例可提供为方法、 系统、 或计算机程序产品。 因此, 本发明可采用完全硬件实施例、 完全软件实施
例、 或结合软件和硬件方面的实施例的形式。 而且, 本发明可采用在一个 或多个其中包含有计算机可用程序代码的计算机可用存储介质 (包括但不 限于磁盘存储器、 CD-ROM、 光学存储器等) 上实施的计算机程序产品的 形式。
本发明是参照根据本发明实施例的方法、 设备(系统)、 和计算机程序 产品的流程图和 /或方框图来描述的。 应理解可由计算机程序指令实现流 程图和 /或方框图中的每一流程和 /或方框、 以及流程图和 /或方框图中 的流程和 /或方框的结合。 可提供这些计算机程序指令到通用计算机、 专 用计算机、 嵌入式处理机或其他可编程数据处理设备的处理器以产生一个 机器, 使得通过计算机或其他可编程数据处理设备的处理器执行的指令产 生用于实现在流程图一个流程或多个流程和 /或方框图一个方框或多个方 框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理 设备以特定方式工作的计算机可读存储器中, 使得存储在该计算机可读存 储器中的指令产生包括指令装置的制造品, 该指令装置实现在流程图一个 流程或多个流程和 /或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备 上, 使得在计算机或其他可编程设备上执行一系列操作步驟以产生计算机 实现的处理, 从而在计算机或其他可编程设备上执行的指令提供用于实现 在流程图一个流程或多个流程和 /或方框图一个方框或多个方框中指定的 功能的步驟。
尽管已描述了本发明的优选实施例, 但本领域内的技术人员一旦得知 了基本创造性概念, 则可对这些实施例作出另外的变更和修改。 所以, 所 附权利要求意欲解释为包括优选实施例以及落入本发明范围的所有变更和 修改。
显然, 本领域的技术人员可以对本发明进行各种改动和变型而不脱离 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
1、 一种支持多载频接入的方法, 其特征在于, 所述方法包括: 基站收发信机 BTS获取操作维护中心根据 BTS内小区使用的载频被小 区内终端支持的概率而配置的基本载频列表和扩展载频列表;
BTS根据所述基本载频列表和扩展载频列表配置开销消息, 配置后的 开销消息携带基本载频列表和扩展载频列表中的载频的信息;
BTS将配置后的开销消息广播给 BTS内小区的终端, 空闲态终端根据 所述开销消息确定接入网络时使用的载频并成功接入网络。
2、 根据权利要求 1所述的方法, 其特征在于, 所述操作维护中心根据 BTS 内小区使用的载频被小区内终端支持的概率配置基本载频列表和扩展 载频列表为:
确定 BTS内小区使用的载频被小区内所有终端支持时, 将所述载频配 置在基本载频列表;
确定 BTS内小区使用的载频被小区内部分终端支持时, 将所述载频配 置在扩展载频列表。
3、根据权利要求 1或 2所述的方法, 其特征在于, 所述 BTS根据所述 基本载频列表和扩展载频列表配置开销消息为:
当基本载频列表不为空时, 根据基本载频列表中载频个数配置基本频 段个数, 根据基本载频列表的载频配置各基本频段的频点;
根据扩展载频列表是否为空配置扩展信道标志位, 当所述扩展载频列 表不为空时, 根据扩展载频列表中的载频个数配置扩展频段个数, 根据扩 展载频列表的载频配置各扩展频段的频点。
4、 根据权利要求 1或 2所述的方法, 其特征在于, 所述方法还包括: 空闲态终端接收到 BTS广播的开销消息,且确定通过与 BTS协商未得 到协商载频时, 确定所述开销消息中的基本载频列表是否包含载频; 如果包含载频, 则空闲态终端对基本载频列表中的载频, 利用频点选 择算法选择出一个载频, 并使用选择出的载频接入网络; 如果不包含载频, 则空闲态终端利用当前正在使用的载频接入网络。
5、 根据权利要求 1或 2所述的方法, 其特征在于, 所述方法还包括: 空闲态终端接收到 BTS广播的开销消息,且确定通过与 BTS协商得到 协商载频时, 确定所述开销消息中的基本载频列表或扩展载频列表是否包 含载频;
如果包含载频, 则空闲态终端先删除基本载频列表和扩展载频列表中 不是协商载频的载频, 再利用频点选择算法选择出一个载频, 并使用选择 出的载频接入网络; 如果均不包含载频, 则空闲态终端利用当前正在使用 的载频接入网络。
6、 一种操作维护中心装置, 其特征在于, 所述装置包括:
配置单元, 用于根据 BTS内小区使用的载频被小区终端支持的概率配 置基本载频列表和扩展载频列表;
发送单元, 用于向 BTS发送所述基本载频列表和扩展载频列表。
7、 如权利要求 6所述的装置, 其特征在于, 所述配置单元, 具体用于 在确定 BTS内小区使用的载频被小区所有终端支持时, 将所述载频配置在 基本载频列表; 确定 BTS内小区使用的载频被小区部分终端支持时, 将所 述载频配置在扩展载频列表。
8、 一种支持多载频接入的 BTS, 其特征在于, 所述 BTS包括: 信息收集模块, 用于从操作维护中心获取基本载频列表和扩展载频列 表;
信道单元处理模块, 用于根据所述基本载频列表和扩展载频列表配置 开销消息 , 配置后的开销消息携带基本载频列表和扩展载频列表中的载频 的信息; 广播模块, 用于将配置后的开销消息广播给 BTS内小区的终端, 空闲 态终端根据所述开销消息确定接入网络时使用的载频并成功接入网络。
9、 如权利要求 8所述的 BTS, 其特征在于, 所述信道单元处理模块具 体用于:
当基本载频列表不为空时, 根据基本载频列表中载频个数配置基本频 段个数, 根据基本载频列表的载频配置各基本频段的频点;
根据扩展载频列表是否为空配置扩展信道标志位, 当所述扩展载频列 表不为空时, 根据扩展载频列表中的载频个数配置扩展频段个数, 根据扩 展载频列表的载频配置各扩展频段的频点。
10、 一种支持多载频接入的接入终端, 其特征在于, 所述接入终端包 括:
载频确定模块, 用于接收到 BTS广播的开销消息, 且确定通过与 BTS 协商未得到协商载频时, 确定所述开销消息中的基本载频列表是否包含载 频;
第一载频选择模块, 用于确定基本载频列表包含载频时, 对基本载频 列表中的载频, 利用频点选择算法选择出一个载频, 并使用选择出的载频 接入网络;
第二载频选择模块, 用于确定基本载频列表未包含载频时, 利用当前 正在使用的载频接入网络。
11、 一种支持多载频接入的接入终端, 其特征在于, 所述接入终端包 括:
载频存在确定模块, 用于接收到 BTS广播的开销消息, 且确定通过与 BTS协商得到协商载频时, 确定所述开销消息中的基本载频列表或扩展载 频列表是否包含载频;
载频计算模块, 用于在基本载频列表或扩展载频列表包含载频时, 先 删除基本载频列表和扩展载频列表中不是协商载频的载频, 再利用频点选 择算法选择出一个载频, 并使用选择出的载频接入网络;
当前载频选择模块, 用于在基本载频列表和扩展载频列表均不包含载 频时, 利用当前正在使用的载频接入网络。
12、 一种支持多载频接入的系统, 其特征在于, 包括权利要求 6或 7 所述的操作维护中心装置、 权利要求 8或 9所述的 BTS、 以及权利要求 10 或 11所述的接入终端。
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