WO2009082928A1 - A method for determining paging slot by base station with cdma trunking service - Google Patents

A method for determining paging slot by base station with cdma trunking service Download PDF

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Publication number
WO2009082928A1
WO2009082928A1 PCT/CN2008/073533 CN2008073533W WO2009082928A1 WO 2009082928 A1 WO2009082928 A1 WO 2009082928A1 CN 2008073533 W CN2008073533 W CN 2008073533W WO 2009082928 A1 WO2009082928 A1 WO 2009082928A1
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Prior art keywords
slot
mobile station
base station
index
ptt
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PCT/CN2008/073533
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English (en)
French (fr)
Inventor
Chuanxi Wu
Original Assignee
Zte Corporation
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Publication date
Application filed by Zte Corporation filed Critical Zte Corporation
Priority to EP08866806.6A priority Critical patent/EP2224777B1/en
Priority to US12/747,913 priority patent/US8249041B2/en
Publication of WO2009082928A1 publication Critical patent/WO2009082928A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W68/00User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/02Arrangements for increasing efficiency of notification or paging channel
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/22Processing or transfer of terminal data, e.g. status or physical capabilities

Definitions

  • the present invention relates to the field of communications, and in particular, to a method for determining a paging slot of a base station of a code division multiple access (CDMA) cluster service.
  • CDMA code division multiple access
  • Background Art Currently, there are two paging modes in a CDMA system: a slotted mode and a non-slotted mode.
  • the non-slot mode refers to: the mobile station continuously monitors the Forward-Paging Channel (F-PCH), instead of listening to the specified time slot.
  • F-PCH Forward-Paging Channel
  • the mobile station When operating in the slot mode, the mobile station does not continuously monitor the F-PCH in the idle state, but receives the F-PCH in a specified period of time at regular intervals according to certain rules, in each of the two intercepts.
  • the mobile station is equivalent to being in a dormant state, that is, the baseband processor and the radio frequency circuit are reduced in operation or even stopped, so that power consumption can be reduced.
  • the basic unit of the split time is the slot of the F-PCH (slot), and the duration of one slot is 80 ms, that is, four 20 ms paging channel frames.
  • a mobile station in slotted mode usually listens to the F-PCH at regular intervals in an idle state.
  • This time interval is called a Slot Cycle, and usually monitors one or two in one slot period.
  • the user can adjust the length of the desired slot period by setting the slot period index of the mobile station by itself, and the adjustment will pass the parameter.
  • the number change registration, call, page response and other messages are reported to the system.
  • the user's adjustment range for the slot cycle is limited by the current network configuration.
  • the mobile station in the slot mode, the mobile station only listens for paging at a certain time, and generally only listens to one or two time periods in the paging channel slot period, thereby saving power consumption of the mobile station. Extends battery life.
  • the mobile station needs to listen to all paging time periods.
  • the Push To Talk (PTT) Slot Cycle Index (PTT Max Slot Cycle Index) is introduced, which specifies the current Parameters such as the maximum slot cycle index allowed in the PTT system.
  • PTT Push To Talk
  • PTT Max Slot Cycle Index specifies the current Parameters such as the maximum slot cycle index allowed in the PTT system.
  • the present invention has been made in view of the problem of slow access of a mobile station after the mobile station is turned on in the related art, and the main object of the present invention is to provide an improved CDMA trunking service base station paging slot determination scheme, At least one of the above problems in the related art is solved.
  • a method for determining a paging slot of a CDMA trunking service base station is provided.
  • the method for determining a paging slot of a CDMA trunking service base station includes: if the base station determines that the PTT version number of the mobile station is greater than or equal to a predetermined value, and the base station obtains the negative slot information of the mobile station, the maximum PTT slot period The index, the PTT slot cycle index, the maximum slot cycle index, and the minimum value in the slot cycle index are used as the first slot cycle index, and the base station pages the mobile station with the slot cycle based on the first slot cycle index If the base station determines that the PTT version number of the mobile station is greater than or equal to a predetermined value, and if the base station does not obtain the negative slot information of the mobile station, the base station uses the maximum PTT slot period index, the maximum slot.
  • the period index and the minimum value of the slot period index are used as the second slot period index, and the base station pages the mobile station with the slot period based on the second slot period index; if the base station determines the PTT protocol version number of the mobile station If the value is less than the predetermined value, the base station uses the minimum value of the maximum slot period index and the slot period index as the third slot period index, and the base station pages the mobile station with the slot period based on the third slot period index; When the base station cannot determine whether the mobile station operates in a slot manner or cannot determine the slot period index of the mobile station, the slot period index has a value of 1, and then performs calculations according to the above three methods.
  • the PTT version number of the mobile station corresponds to the function of the mobile station.
  • the mobile station's PTT version number is 1, it corresponds to the PTT enhanced group call; if the mobile station's PTT version number is 2, it corresponds to supporting the mobile station fast access call; if the mobile station's PTT version If the number is 3, it corresponds to supporting the mobile station large group paging; if the mobile station's PTT version number is 5. Then it corresponds to the first stage of supporting the mobile station negative slot paging and the PPT traditional group call; if the mobile station's PTT version number is 6, it corresponds to supporting the mobile station negative slot paging and the PPT traditional group call second stage. Further, the predetermined value is any one of 1 to 9.
  • the above mobile station may include a mobile terminal, a fixed station, and a radio station, and is not limited to these devices.
  • the base station determines the slot period index of the paging slot by using the negative slot, and finally determines the paging slot period according to the index, which can solve the problem that the mobile station existing in the related art is turned on.
  • the problem of slow access to the called party can improve the speed of booting.
  • FIG. 3 P23523 1 is a flowchart of a method for determining a paging slot of a CDMA cluster service base station according to an embodiment of the present invention
  • FIG. 2 is a flowchart illustrating a method for determining a paging slot of a CDMA cluster service base station according to an embodiment of the present invention
  • FIG. 3 is a diagram of a method for determining a paging slot of a CDMA trunking service base station according to an embodiment of the present invention, when performing a non-cluster service
  • FIG. 4 is a method for determining a paging slot of a CDMA trunking service base station according to an embodiment of the present invention, and searching for a mobile station supporting a negative time slot corresponding to the base station A flow chart of a method for determining a time slot.
  • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT The present invention provides an improved CDMA trunking service base station paging time slot determination scheme in consideration of the problem that the mobile station is slow to access after the mobile station is powered on.
  • a negative time slot is first used, then the base station determines the slot cycle index of the paging slot, and finally determines the paging slot period based on the index.
  • FIG. 1 is a diagram of a method for determining a paging slot of a CDMA cluster service base station according to an embodiment of the present invention. As shown in FIG.
  • a method for determining a paging slot of a CDMA cluster service base station includes: a) In the case that the base station determines that the mobile station is operating in a time slot manner, the paging time slot may be determined according to one of the following manners one to three: Mode 1, if the base station determines that the mobile station's PTT version number is greater than Or equal to the predetermined value (this
  • the base station obtains the negative slot information of the mobile station, the maximum PTT slot period index, the PTT slot period index, the maximum slot period index, and the slot period
  • the minimum value in the index is used as the first slot cycle index, and the base station pages the mobile station with the slot period determined by the first slot cycle index; and second, if the base station determines that the PTT version number of the mobile station is greater than or Equal to the predetermined value, and the base station does not obtain the negative slot information of the mobile station, the base station uses the minimum value of the maximum PTT slot cycle index, the maximum slot cycle index, and the slot cycle index as the second slot cycle index.
  • the base station pages the mobile station by the slot period determined by the second slot cycle index; mode 3, if the base station determines that the PTT protocol version number of the mobile station is less than a predetermined value, the base station uses the maximum slot cycle index to And a minimum value in the slot cycle index as a third slot cycle index, the base station searching for the mobile station with the slot cycle determined by the third slot cycle index ;
  • the slot period index has a value of 1, and then follows the above three modes (ie, mode one to mode three) ) Calculation.
  • the base station determines whether the mobile station can work in a time slot manner, and Table 1 shows the mobile station protocol version number. Correspondence with the function of the mobile station. Table 1
  • the mobile station's PTT version number is 1, it corresponds to the PTT enhanced group call; if the mobile station's PTT version number is 2, it corresponds to supporting the mobile station fast access call If the mobile station's PTT version number is 3, it corresponds to supporting mobile station large group paging; if the mobile station's PTT version number is 5, it corresponds to supporting mobile station negative time slot paging and PPT traditional group call The first stage; if the mobile station's PTT version number is 6, it corresponds to supporting mobile
  • the second slot of the negative slot paging and the PPT traditional group call Specifically, when the present invention is implemented, if the paging channel of the mobile station of the slot cycle index and the forward common control channel slot are given, the base station selects a PGSLOT using a hash function, and the input of the hash function includes registration based on the mobile station.
  • the mobile station 2 shows the method of determining the paging slot of the CDMA cluster service base station according to the embodiment of the present invention, and the non-supporting negative slot corresponding to the base station is not supported.
  • the flow of the paging slot determination method of the mobile station As shown in Fig. 2, if the user instructs the mobile station to modify the slot cycle index, the mobile station will perform parameter change registration. In the case that the mobile station does not support negative slot paging, if the system identification number and the network identification number of the base station do not match any of the system identification number and the network identification number list, the mobile station A value not greater than the maximum slot cycle index and the smaller of 1 is used as the slot cycle index, otherwise the mobile station will use the slot cycle index not greater than the slot cycle index. Additionally, in the method, the system identification number and the network identification number are stored in a system parameter message or an ANSI-41 system parameter message.
  • FIG. 4 shows a mobile station supporting a negative slot corresponding to the base station after determining the paging slot of the CDMA cluster service base station according to the embodiment of the present invention.
  • the paging index is calculated by taking the minimum value among the four parameters of the period index, the PTT slot period index, the maximum slot period index, and the slot period index; Case 2, if the mobile station receives the overhead message of the paging channel To the negative slot paging cycle information, but the mobile station does not store the negative slot paging cycle information, then the mobile station passes the maximum PTT slot cycle index, the maximum slot cycle index, and the slot week.
  • the minimum value is obtained from the three parameters of the index to calculate the paging slot; Case 3, if the mobile station does not receive the negative slot paging cycle information on the overhead message of the paging channel, but the mobile station saves the negative time slot search Referring to the period information, the mobile station calculates the paging slot by obtaining the minimum value from the three parameters of the PTT slot cycle index, the maximum slot cycle index, and the slot cycle index; and the fourth case, if the mobile station is looking for The negative slot paging cycle information is not received on the overhead message of the paging channel, and the mobile station does not save the negative slot paging cycle information, and the mobile station obtains the minimum value from the maximum slot cycle index and the slot cycle index. Calculate the paging slot.
  • FIG. 3 is a flowchart showing a method for determining a paging time slot of a base station when a non-cluster service is performed after determining a paging slot of a CDMA cluster service base station according to an embodiment of the present invention. As shown in FIG.
  • the method for determining, by the base station, the paging slot when performing the non-cluster service includes: if the base station determines that the mobile station works in a slot manner, and determines the preferred slot cycle index of the mobile station, the mobile station prefers the time The smaller of the slot period index and the maximum slot period index is used as the fourth slot period index, and the base station pages the mobile station with the slot period based on the fourth slot period index; and when the base station cannot determine whether the mobile station is Working in time slot mode or not determining the slot period of the mobile station
  • the mobile station's preferred slot cycle index and the smaller one of the values are used as the fifth slot period index, and the base station pages the mobile station with the slot period based on the fifth slot period index.
  • the determination process of the CDMA trunking service base station paging slot and its associated mobile station paging slot according to the embodiment of the present invention will be described below with reference to specific examples.
  • Example 1 On the PTT terminal side, when multiple terminals such as A and B are in the same group and both belong to the base station C, the slot cycle of the terminal A and the base station C is determined.
  • the Max PTT Slot Cycle Index value of the base station C side is 4, the current PTT Slot Cycle Index value is ⁇ 1, the Slot Cycle Index value is 4, and the Max Slot Cycle Index value is 6.
  • the terminal A is powered on, registers for power-on, receives system parameter messages, and after receiving it, can determine its own time slot according to these parameters. If terminal A receives the information of the negative slot paging cycle on the overhead message of the paging channel (the Max PTT Slot Cycle Index is obtained from the PTT system parameter message), and terminal A itself stores the negative slot paging cycle. Information (for example, PTT Slot Cycle Index), terminal A calculates the paging time slot according to Min (Max PTT Slot Cycle Index, PTT Slot Cycle Index, Max Slot Cycle Index, Slot Cycle Index), that is, at (4, -1) , 6, 4) take the minimum value, and take _ 1 as its paging slot period. After that, the paging slot of the base station C is determined.
  • Min Max PTT Slot Cycle Index, PTT Slot Cycle Index, Max Slot Cycle Index, Slot Cycle Index
  • the base station C If the PTT version number sent by the terminal A to the base station C is equal to 5 and the Slot Cycle Index value of the terminal A is -1, the base station C according to the formula Min (Max PTT Slot Cycle Index, PTT Slot Cycle Index, Max Slot Cycle Index, Slot Cycle Index) The determined slot cycle index is used to page terminal A. That is, the minimum value is taken from (4, -1, 6, -1), so that the slot period index is determined to be _1 to page terminal A.
  • Example 2 On the PTT terminal side, when terminals A and B are in the same group and both belong to the base station C, the slot cycle of the terminal A and the base station C is determined.
  • terminal A is powered on, performs boot registration, and receives system parameter messages. After receiving the message, terminal A can determine its own time slot according to these parameters. If terminal A does not receive the information of the negative slot paging cycle on the overhead message of the paging channel,
  • the terminal A itself stores the negative slot paging cycle information, so the terminal A calculates the paging slot according to the formula Min (PTT Slot Cycle Index, Max Slot Cycle Index, Slot Cycle Index), that is, at (1, 6, The minimum value is selected in 4) to determine that the current paging slot period is 1. After that, the paging slot is determined on the side of the base station C. If the PTT version number sent by the terminal A to the base station C is equal to 6, and the Slot Cycle Index value of the terminal A is 1, the base station C is based on the formula Min (Max PTT Slot Cycle Index). , PTT Slot Cycle Index, Max Slot Cycle Index, Slot Cycle Index ) The slot cycle of terminal A is paged.
  • Min PTT Slot Cycle Index, Max Slot Cycle Index, Slot Cycle Index
  • embodiments may be implemented in hardware, software, firmware, middleware, microcode, hardware description languages, or a combination thereof.
  • program code or code segments for performing the necessary tasks may be stored in a machine readable medium, such as a storage medium.
  • the (multiple) processor can perform the necessary tasks.
  • a code segment can represent any combination of processes, functions, subroutines, programs, routines, subroutines, modules, objects, packages, classes, or instructions, data structures, or programming languages.
  • a code segment is coupled to another code segment or hardware circuit by transmitting and/or receiving information, data, arguments, or stored content.
  • Information, arguments, parameters, data, etc. may be communicated, transmitted, or transmitted via any suitable means including memory sharing, messaging, token passing, network transmission, and the like.
  • the base station determines the slot cycle index of the paging slot by using the negative slot, and finally determines the paging slot according to the index, which can solve the problem in the related art.
  • the problem that the called party is slow to access after the mobile station is powered on can improve the speed of the power-on access, and can determine the paging time slot for the base station and the terminal that do not support the negative slot paging.

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  • Computer Networks & Wireless Communication (AREA)
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Description

CDMA集群业务基站确定寻呼时隙的方法 技术领域 本发明涉及通信领域, 并且特别地, 涉及码分多址 ( Code Division Multiple Access, 简称为 CDMA ) 集群业务基站寻呼时隙的确定方法。 背景技术 目前, CDMA***中存在两种寻呼模式: 时隙模式 ( Slotted Mode ) 和 非时隙模式 ( Non- Slotted Mode )。 其中, 非时隙模式是指: 移动台对前向寻 呼信道 ( Forward-Paging Channel, 简称为 F-PCH )进行连续监听, 而不是按 照指定的时隙进行监听的工作模式。 由于移动台需要对 F-PCH连续地进行解调和解码, 并处理 F-PCH中的 消息, 这样会导致电池中的电量消耗得很快; 而且, 在 F-PCH上没有寻呼的 情况下, ***会循环广播***参数消息, 对于已经正确获得了这些参数而且 处于空闲状态的移动台来说, 重复接收这些参数也是一种浪费。 因 iH , 为了减少移动台对 F-PCH不必要的监听、 并且延长电池在空闲 状态下的使用时间, 在 IS-95 中规定了时隙模式, 该模式可与非时隙模式对 应。 在工作于时隙模式时, 移动台在空闲状态下并不连续地监听 F-PCH, 而 是根据一定的规则, 每隔一定时间在指定的时间段内接收 F-PCH, 在每两次 监听 F-PCH的间隔之中, 移动台相当于处于休眠状态, 即基带处理器和射频 电路减少工作、 甚至停止工作, 这样就能够降低耗电量。 在时隙模式中, 划分时间的基本单位为 F-PCH的时隙 ( slot ) , —个时 隙的持续时间为 80ms, 也就是 4个 20ms的寻呼信道帧。 处于时隙模式的移 动台通常在空闲状态下每隔一定的时间才去监听一次 F-PCH, 这个时间间隔 叫故时隙周期(Slot Cycle ), 并且在一个时隙周期内通常监听一或两个时隙。 时隙周期的长度以 1.28s ( =16 X 80ms ) 计, 它必须是 1.28s的 1、 2、 4、 8、 16、 32、 64、 或 128倍, 若以 T表示时隙周期长度, 则 T=1.28 x 2's, 其中, i为时隙周期指数 ( Slot Cycle Index ), 其取值可以为 0到 7的整数, 而时隙 周期的最大值可为 2048 个时隙, 即, 163.84s。 并且, 用户可以通过自行设 置移动台的时隙周期指数来调整其希望的时隙周期的长短, 调整后将通过参
1 P23523 数变更登记、 起呼、 寻呼响应等消息报告给***。 此外, 用户对时隙周期的调整范围受到当前网络配置情况的限制。 在广 播服务区内的移动台的***参数消息中有一个参数, 即, 最大时隙周期指数 ( Max Slot Cycle Index ), 该指数规定了当前***允许使用的最大的时隙周 期, 移动台实际使用的时隙周期指数还需要才艮据实际情况确定。 如上所述, 在时隙模式下, 移动台只在某个特定的时间监听寻呼, 一般 只监听寻呼信道时隙周期中的一个或两个时间段, 节省了移动台的耗电量, 延长了电池寿命。 另一方面, 在非时隙工作模式下, 移动台则需要监听所有 的寻呼时间段。 在集群***下, 除了原***的时隙周期指数等参数外, 还引入了最大即 按即说 ( Push To Talk, 简称为 PTT ) 时隙周期指数 ( PTT Max Slot Cycle Index ), 它规定了当前 PTT***中允许使用的最大的时隙周期指数等参数。 此外, 在 PTT ***中, 存在多种原因导致移动台开机后被叫接入曼的 问题, 使得 PTT呼叫等功能受到了限制。 然而, 目前尚未提出能够解决该问 题的技术方案。 发明内容 考虑到相关技术中存在的移动台开机后被叫接入慢的问题而做出本发 明,本发明的主要目的在于提供一种改进的 CDMA集群业务基站寻呼时隙的确 定方案, 以解决相关技术中的上述问题至少之一。 为了达到上述目的, 根据本发明的一个方面, 提供了一种 CDMA集群 业务基站寻呼时隙的确定方法。 根据本发明的 CDMA集群业务基站寻呼时隙的确定方法包括: 如果基 站判断移动台的 PTT版本号大于或等于预定的值,且基站得到移动台的负时 隙信息,将最大 PTT时隙周期指数、 PTT时隙周期指数、最大时隙周期指数、 以及时隙周期指数中的最小值作为第一时隙周期指数, 基站以基于第一时隙 周期指数的时隙周期对移动台进行寻呼; 如果基站判断移动台的 PTT版本号大于或等于预定的值, 且如果基站 没有得到移动台的负时隙信息, 则基站以最大 PTT时隙周期指数、 最大时隙
2 P23523 周期指数、 以及时隙周期指数中的最小值作为第二时隙周期指数, 基站以基 于第二时隙周期指数的时隙周期对移动台进行寻呼; 如果基站判断移动台的 PTT协议版本号小于预定的值, 则基站以最大 时隙周期指数以及时隙周期指数中的最小值作为第三时隙周期指数, 基站以 基于第三时隙周期指数的时隙周期对移动台进行寻呼; 当基站不能确定移动台是否以时隙方式工作或者不能确定移动台的时 隙周期指数时, 时隙周期指数的取值为 1 , 然后再按照上述三种方式进行计 算。 其中, 移动台的 PTT版本号与移动台的功能相对应。 并且, 如果移动台的 PTT版本号为 1 , 则其对应于 PTT增强式组呼; 如果移动台的 PTT版本号为 2 , 则其对应于支持移动台快速接入呼叫; 如果 移动台的 PTT版本号为 3 , 则其对应于支持移动台大组寻呼; 如果移动台的 PTT版本号为 5。 则其对应于支持移动台负时隙寻呼以及 PPT传统式组呼第 一阶段; 如果移动台的 PTT版本号为 6, 则其对应于支持移动台负时隙寻呼 以及 PPT传统式组呼第二阶段。 此外, 该预定的值为 1至 9中的任一值。 另外, 上述移动台可包括移动终端、 固定台、 以及车载台且并不限于这 些设备。 借助于本发明的上述技术方案, 通过使用负时隙, 基站确定寻呼时隙的 时隙周期指数, 最后根据该指数来确定寻呼时隙周期, 能够解决相关技术中 存在的移动台开机后被叫接入慢的问题, 从而能够提高开机接入的速度。 本发明的其它特征和优点将在随后的说明书中阐述, 并且, 部分地从说 明书中变得显而易见, 或者通过实施本发明而了解。 本发明的目的和其他优 点可通过在所写的说明书、 权利要求书、 以及附图中所特別指出的结构来实 现和获得。 附图说明 附图用来提供对本发明的进一步理解, 并且构成说明书的一部分, 与本 发明的实施例一起用于解释本发明, 并不构成对本发明的限制。 在附图中:
3 P23523 图 1是根据本发明实施例的 CDMA集群业务基站寻呼时隙的确定方法 的流程图; 图 2是釆用根据本发明实施例的 CDMA集群业务基站寻呼时隙的确定 方法后,与基站对应的不支持负时隙的移动台的寻呼时隙确定方法的流程图; 图 3是釆用根据本发明实施例的 CDMA集群业务基站寻呼时隙的确定 方法后, 执行非集群业务时基站寻呼时隙的确定方法的流程图; 以及 图 4是釆用根据本发明实施例的 CDMA集群业务基站寻呼时隙的确定 方法后, 与基站对应的支持负时隙的移动台的寻呼时隙确定方法的流程图。 具体实施方式 功能相无述 考虑到相关技术中存在的移动台开机后被叫接入慢的问题,本发明的实 施例提出了一种改进的 CDMA集群业务基站寻呼时隙的确定方案,在本发明的 实施例中, 首先使用负时隙, 然后基站确定寻呼时隙的时隙周期指数, 最后 才艮据该指数来确定寻呼时隙周期。 以下结合附图对本发明的优选实施例进行说明, 应当理解, 此处所描述 的优选实施例仅用于说明和解释本发明, 并不用于限定本发明。如果不冲突, 本发明实施例以及实施例中的特征可以相互组合。 需要说明的是, 本发明实施例中提到的移动台可包括移动终端、 固定台 以及车载台等。 才艮据本发明的实施例提供了一种 CDMA集群业务基站寻呼时隙的确定方 法。 图 1示出了根据本发明实施例的 CDMA集群业务基站寻呼时隙的确定 方法, 如图 1 所示, #居本发明实施例的 CDMA集群业务基站寻呼时隙的 确定方法包括: (一)在基站确定移动台以时隙方式进行工作的情况下, 可以才艮据以下 方式一至方式三中的一种来确定寻呼时隙: 方式一, 如果基站判断移动台的 PTT版本号大于或等于预定的值 (该
4 P23523 预定的值为 1 至 9 中的任一自然数), 且基站得到移动台的负时隙信息, 则 将最大 PTT时隙周期指数、 PTT时隙周期指数、 最大时隙周期指数、 以及时 隙周期指数中的最小值作为第一时隙周期指数, 基站以由该第一时隙周期指 数所确定的时隙周期对移动台进行寻呼; 方式二, 如果基站判断移动台的 PTT版本号大于或等于预定的值, 且 基站没有得到移动台的负时隙信息, 则基站以最大 PTT时隙周期指数、 最大 时隙周期指数、 以及时隙周期指数中的最小值作为第二时隙周期指数, 基站 以由该第二时隙周期指数所确定的时隙周期对移动台进行寻呼; 方式三, 如果基站判断移动台的 PTT协议版本号小于预定的值, 则基 站以最大时隙周期指数以及时隙周期指数中的最小值作为第三时隙周期指 数, 基站以由该第三时隙周期指数所确定的时隙周期对移动台进行寻呼;
(二 )在基站不能确定移动台是否以时隙方式工作或者不能确定移动台 的时隙周期指数时, 时隙周期指数的取值为 1 , 然后再按照上述三种方式(即 方式一至方式三) 进行计算。 在上述三种方式中, 才艮据移动台的 PTT版本号与移动台的功能之间的 对应关系, 基站判断移动台是否能够以时隙方式进行工作, 表 1示出了移动 台协议版本号与移动台的功能之间的对应关系。 表 1
Figure imgf000007_0001
具体地, 如表 1所示, 如果移动台的 PTT版本号为 1 , 则其对应于 PTT 增强式组呼; 如果移动台的 PTT版本号为 2 , 则其对应于支持移动台快速接 入呼叫; 如果移动台的 PTT版本号为 3 , 则其对应于支持移动台大组寻呼; 如果移动台的 PTT版本号为 5 , 则其对应于支持移动台负时隙寻呼以及 PPT 传统式组呼第一阶段; 如果移动台的 PTT版本号为 6 , 则其对应于支持移动
5 P23523 台负时隙寻呼以及 PPT传统式组呼第二阶段。 具体地, 执行本发明时, 如果已给定时隙周期指数的移动台的寻呼信道 和前向公共控制信道时隙, 则基站使用 hash 函数选择一个 PGSLOT, hash 函数的输入包括基于移动台注册的国际移动台身份码 (International Mobile Subscriber Identity, 简称为 IMSI ) 的 IMSI— S以及寻呼信道或者公共控制信 道时隙的最大值, 其中, 为移动台分配的寻呼信道或者前向公共控制信道时 隙 口下:
( [t/4]~ PGSLOT ) mod ( 16 T ) = 0, 其中, t是帧中的***时间, T是时隙循环长度, 单位是 1.28秒, T =2' , i是时隙周期指数。 釆用本发明的基站寻呼时隙确定方法后,对与基站对应的终端侧的寻呼 时隙的确定也带来一定影响, 以下分別针对两种移动台描述寻呼时隙的确定 方法: ( 1 ) 不支持负时隙寻呼的移动台; (2 ) 支持负时隙寻呼的移动台。 下 面许细说明这两种方法。 ( 1 ) 移动台不支持负时隙寻呼的情况 图 2示出了釆用根据本发明实施例的 CDMA集群业务基站寻呼时隙的 确定方法后, 与基站对应的不支持负时隙的移动台的寻呼时隙确定方法的流 程。 如图 2所示, 如果用户指示移动台修改了时隙周期指数, 则移动台将执 行参数改变登记。 在移动台不支持负时隙寻呼的情况下, 如果基站的***识 別号和网络识別号与***识別号和网络识別号列表中的任一项都不匹配, 则 移动台以不大于最大时隙周期指数和 1中较小值的值作为时隙周期指数, 否 则移动台将使用不大于时隙周期指数的时隙周期指数。 此外, 在该方法中, ***识別号和网络识別号存储在***参数消息或 ANSI-41 ***参数消息中。
( 2 ) 移动台支持负时隙寻呼的情况 图 4示出了釆用根据本发明实施例的 CDMA集群业务基站寻呼时隙的 确定方法后,与基站对应的支持负时隙的移动台的寻呼时隙确定方法的流程。
6 P23523 如图 4所示, 首先, 如果用户指示移动台爹改了时隙周期指数, 则移动 台将执行参数改变登记; 然后, 在移动台支持负时隙寻呼的情况下, 如果基站的***识別号和网 络识別号与***识別号和网络识別号列表中的任一项都不匹配, 则移动台以 不大于最大时隙周期指数和 1中较小值的值作为时隙周期指数, 否则: 情况一, 如果移动台在寻呼信道的开销消息上收到负时隙寻呼周期信 息, 且移动台保存有负时隙寻呼周期信息, 则移动台通过从最大 PTT时隙周 期指数、 PTT时隙周期指数, 最大时隙周期指数、 以及时隙周期指数这四个 参数中获取最小值来计算寻呼时隙; 情况二, 如果移动台在寻呼信道的开销消息上收到负时隙寻呼周期信 息, 但移动台没有保存有负时隙寻呼周期信息, 则移动台通过从最大 PTT时 隙周期指数、 最大时隙周期指数、 时隙周期指数这三个参数中获取最小值来 计算寻呼时隙; 情况三,如果移动台在寻呼信道的开销消息上没有收到负时隙寻呼周期 信息, 但移动台保存有负时隙寻呼周期信息, 则移动台通过从 PTT时隙周期 指数、 最大时隙周期指数、 以及时隙周期指数这三个参数中获取最小值来计 算寻呼时隙; 以及 情况四,如果移动台在寻呼信道的开销消息上没有收到负时隙寻呼周期 信息, 且移动台也没有保存负时隙寻呼周期信息, 移动台通过从最大时隙周 期指数、 时隙周期指数中获取最小值来计算寻呼时隙。 釆用本发明的方法后 ,对执行非集群业务时基站确定寻呼时隙的方法也 会带来一定影响, 详述如下。 图 3示出了釆用根据本发明实施例的 CDMA集群业务基站寻呼时隙的 确定方法后, 执行非集群业务时基站寻呼时隙的确定方法的流程。 如图 3所示, 执行非集群业务时基站确定寻呼时隙的方法包括: 若基站 确定移动台以时隙方式工作, 并且确定移动台首选的时隙周期指数时, 将移 动台首选的时隙周期指数和最大时隙周期指数中较小值作为第四时隙周期指 数, 并且基站以基于第四时隙周期指数的时隙周期对移动台进行寻呼; 以及 当基站不能确定移动台是否以时隙方式工作或者不能确定移动台的时隙周期
7 P23523 指数时, 将移动台首选的时隙周期指数和 1中较小的值作为第五时隙周期指 数, 并且基站以基于第五时隙周期指数的时隙周期对移动台进行寻呼。 下面结合具体实例描述才艮据本发明实施例的 CDMA集群业务基站寻呼 时隙以及与其相关联的移动台寻呼时隙的确定过程。 实例 1 在 PTT终端侧, A、 B 等多个终端为同一个群组, 并均隶属于基站 C 的情况下,确定终端 A和基站 C的时隙周期。 支设基站 C侧的 Max PTT Slot Cycle Index值为 4, 当前 PTT Slot Cycle Index值为― 1 , Slot Cycle Index值 为 4, Max Slot Cycle Index值为 6。 首先, 终端 A开机, 进行开机登记, 接收***参数消息, 收到后就可 以才艮据这些参数确定其本身的时隙了。 如果终端 A在寻呼信道的开销消息上 收到负时隙寻呼周期的信息(由 PTT***参数消息中的中得到 Max PTT Slot Cycle Index ), 且终端 A 自身保存有负时隙寻呼周期信息 (例如, PTT Slot Cycle Index ), 终端 A根据 Min ( Max PTT Slot Cycle Index, PTT Slot Cycle Index, Max Slot Cycle Index, Slot Cycle Index )来计算寻呼时隙, 即, 在(4, - 1 , 6, 4 ) 中取最小值, 从而取 _ 1为其的寻呼时隙周期。 之后, 确定基站 C的寻呼时隙, 假如终端 A发送给基站 C的 PTT版本 号等于 5以及终端 A的 Slot Cycle Index值为 - 1 ,基站 C才艮据公式 Min( Max PTT Slot Cycle Index, PTT Slot Cycle Index, Max Slot Cycle Index, Slot Cycle Index ) 确定的时隙周期指数对终端 A进行寻呼。 即, 从 (4, - 1 , 6, - 1 ) 中取最小值, 从而可确定时隙周期指数为 _ 1 , 以对终端 A进行寻呼。 实例 2 在 PTT终端侧, A、 B等终端为同一个群组, 且均隶属于基站 C的情况 下, 确定终端 A和基站 C的时隙周期。 i设基站 C侧的 Max PTT Slot Cycle Index值为 4, 当前 PTT Slot Cycle Index值为 1 , Slot Cycle Index值为 4, Max Slot Cycle Index值为 6。 首先, 终端 A开机, 进行开机登记, 接收***参数消息, 收到该消息 后, 终端 A就可以才艮据这些参数确定其本身的时隙。 如果终端 A在寻呼信道的开销消息上没有收到负时隙寻呼周期的信息,
8 P23523 但是终端 A自身保存有负时隙寻呼周期信息,所以终端 A根据公式 Min( PTT Slot Cycle Index, Max Slot Cycle Index, Slot Cycle Index ) 来计算寻呼时隙, 即, 在 ( 1 , 6, 4 ) 中选择最小值, 从而确定当前的寻呼时隙周期为 1。 之后, 在基站 C侧确定寻呼时隙, 假如终端 A发送给基站 C的 PTT版 本号等于 6、以及终端 A的 Slot Cycle Index值为 1 ,基站 C才艮据公式 Min( Max PTT Slot Cycle Index, PTT Slot Cycle Index, Max Slot Cycle Index, Slot Cycle Index ) 的时隙周期对终端 A 进行寻呼。 也即, 从(4, 1 , 6, 1 ) 里面取最 小值, 最后, 确定时隙周期指数为 1 , 从而基站 C根据该时隙周期指数对终 端 A进行寻呼。 另外, 可以通过硬件、 软件、 固件、 中间件、 微码、 硬件描述语言或其 组合来实现实施例。 当用软件、 固件、 中间件或 4啟码来实现时, 可以在诸如 存储介质的机器可读介质中存储用于执行必要任务的程序代码或码段。 (多 个) 处理器可以执行必要任务。 码段可以表示进程、 函数、 子程序、 程序、 例行程序、 子例行程序、 模块、 对象、 软件包、 类、 或指令、 数据结构、 或 程序语言的任意组合。 通过传输和 /或接收信息、 数据、 自变量、 或存储内容 来将码段耦合到另一码段或硬件电路。 信息、 自变量、 参数、 数据等可以经 由包括存储器共享、 消息传递、 令牌传递、 网络传输等的任意合适方式来传 递、 传输、 或传送。 综上所述, 借助于本发明的上述技术方案, 通过使用负时隙, 基站确定 寻呼时隙的时隙周期指数, 最后根据该指数来确定寻呼时隙, 能够解决相关 技术中存在的移动台开机后被叫接入慢的问题, 能够提高开机接入的速度, 并且能够为不支持负时隙寻呼的基站和终端确定寻呼时隙。 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 领域的技术人员来说, 本发明可以有各种更改和变^^ 凡在本发明的^^申和 原则之内, 所作的任何修改、 等同替换、 改进等, 均应包含在本发明的保护 范围之内。
9 P23523

Claims

权 利 要 求 书
1. 一种 CDMA集群业务基站确定寻呼时隙的方法, 其特征在于, 包括: 如果基站判断移动台的 PTT 版本号大于或等于预定的值, 且基站 得到移动台的负时隙信息, 将最大 PTT时隙周期指数、 PTT时隙周期指 数、 最大时隙周期指数、 以及时隙周期指数中的最小值作为第一时隙周 期指数, 所述基站以由所述第一时隙周期指数所确定的时隙周期对所述 移动台进行寻呼;
如果所述基站判断移动台的 PTT 版本号大于或等于预定的值, 且 如果所述基站没有得到所述移动台的负时隙信息, 则所述基站以所述最 大 PTT时隙周期指数、 所述最大时隙周期指数、 以及所述时隙周期指数 中的最小值作为第二时隙周期指数, 所述基站由所述第二时隙周期指数 所确定的时隙周期对所述移动台进行寻呼; 以及
如果所述基站判断移动台的 PTT 协议版本号小于预定的值, 则所 述基站以所述最大时隙周期指数以及所述时隙周期指数中的最小值作为 第三时隙周期指数, 所述基站由所述第三时隙周期指数所确定的时隙周 期对所述移动台进行寻呼; 其中, 当所述基站不能确定移动台是否以时隙方式工作或者不能确 定所述移动台的时隙周期指数时, 所述时隙周期指数的取值为 1。
2. 根据权利要求 1所述的方法, 其特征在于, 所述移动台的 PTT版本号与 所述移动台的功能相对应。
3. 根据权利要求 2所述的方法, 其特征在于, 如果所述移动台的 PTT版本 号为 1 , 则其对应于 PTT增强式组呼; 如果所述移动台的 PTT版本号为 2 , 则其对应于支持所述移动台快速接入呼叫; 如果所述移动台的 PTT 版本号为 3 , 则其对应于支持所述移动台大组寻呼; 如果所述移动台的 PTT版本号为 5 , 则其对应于支持所述移动台负时隙寻呼以及 PPT传统 式组呼第一阶段; 如果所述移动台的 PTT版本号为 6, 则其对应于支持 所述移动台负时隙寻呼以及 PPT传统式组呼第二阶段。
4. 才艮据上述权利要求中任一项所述的方法, 其特征在于, 所述预定的值为 1至 9中的任一值。
10 P23523 根据权利要求中 1至 4中任一项所述的方法, 其特征在于, 所述移动台 包括移动终端、 固定台、 以及车载台。
11 P23523
PCT/CN2008/073533 2007-12-21 2008-12-16 A method for determining paging slot by base station with cdma trunking service WO2009082928A1 (en)

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