TW201230737A - Method, network device and terminal device for paging terminal devices - Google Patents

Abstract

The present invention proposes a new method, a network device, and a terminal device of paging a terminal device in a communication system. The present invention determines the paged object based on the group ID and/or the device ID of the paged terminal device, further, defines a specific paging occasion for the terminal device having group function; at the specific paging occasion paging message comprising the group ID and/or the device ID of the paged terminal device is sent; further, paging reason is inserted into the paging message; wherein the terminal device receives the paging message at the specific paging occasion defined by the system; and further reads the paging reason and responds accordingly to complete the paging procedure after the group ID and/or the device ID of its own is read. This paging mechanism of this invention solves the problem of paging a group of terminal devices. It can meet the requirement of paging a specific or a group of terminal devices. The paging efficiency is thereby improved, and no negative impact on the paging of the current network terminal device is introduced.

Description

201230737 VI. Description of the Invention: [Technical Field] The present invention relates to mobile communication technologies, and in particular, to a method for paging a terminal device in a communication system, a network device thereof, and a terminal device. [Prior Art] According to the definition of the existing communication system specification, the paging for the terminal device determines the object to be paged by the device identification of the terminal device. This is because the starting point for designing an existing communication system is to support human-to-Human (hereinafter referred to as H2H) communication. Communication between a single calling user and a single called user is the primary communication requirement in everyday life. However, when communication technology is rapidly developing and communication applications are becoming more and more abundant, communication between a single calling user and multiple called users is getting more and more attention, especially for machine type communication (MTC) services. Even more so, in short, a user (including individual users and business users) wants to be able to communicate simultaneously with multiple called users, or to trigger the same actions of multiple called users. At this point, if paging techniques and processes in existing communication systems are used, one possible implementation is to initiate multiple independent paging procedures for the multiple called users, which results in wasted system resources. In addition, one situation that needs to be considered is that the industry generally believes that machine-type communication services have more terminal equipment than human-to-human communication in traditional cellular networks. When the MTC enters the existing communication system, the design of the paging mechanism has more challenges, and it needs to meet the 201230737 of the paging-only MTC device capability without negatively affecting the paging of the existing system. The paging mechanism for existing H2H user equipment cannot be directly used for MTC services. The reason is that, first of all, the existing paging mechanism cannot only page the MTC device. Secondly, if the existing H2H user equipment and the MTC equipment are simultaneously called, then a large number of H2H user equipments and MTC equipment need to wake up at the same paging occasion (hereinafter referred to as PO), and finally discover the current paging user of the network. The device is not itself, which means that not only is the terminal wasting power, but the system's false alarm rate is also greatly increased. Finally, although the existing paging mechanism can page multiple user equipments in the same PO, each paging user equipment identifier needs to be sent in the paging message of the empty intermediate plane, which is inefficient. SUMMARY OF THE INVENTION In order to solve the above-mentioned shortcomings in the prior art, the present invention proposes a new method, a network device, and a terminal device for paging a terminal device in a communication system. The invention determines the paged object according to the packet identifier and/or the device identifier of the called terminal device, and defines a dedicated paging occasion for the terminal device with the grouping function; and sends the paging message at the dedicated paging occasion, The paging message carries the packet identifier and/or the device identifier of the specifically called terminal device; further, the paging message is also carried in the paging message; the terminal device receives the paging message at the system-defined dedicated paging occasion; After the packet identification and/or the device identification, the paging reason is further read and a response corresponding to the paging reason is performed to complete the paging process. The paging mechanism of the invention solves the paging problem of the group terminal device, and can

-6- S 201230737 Effective and flexible paging only for specified terminal devices or terminal device groups ‘ Improved paging efficiency and no negative impact on paging of existing network terminal devices. Specifically, according to an embodiment of the present invention, a method for paging a terminal device in a communication system is provided, where the communication system includes a network device and a terminal device, and the method includes: the network device receives information for initiating paging; The device determines the paging device to be called: the network device determines the paging occasion; the time network device corresponding to the paging occasion sends the physical layer paging flag and the paging message, and the terminal device checks the physical layer paging flag at the paging occasion; further, corresponding The paging occasion checks that the terminal device of the physical layer paging flag receives the paging message. According to an optional embodiment of the present invention, the information for initiating paging includes a packet identifier and/or a device identifier of the called terminal device, and the paging terminal device may determine according to the group identifier or the device identifier; The paging occasion is determined according to the group identifier of the terminal device: the network device sends the packet identifier and/or the device identifier of the paged terminal device to the terminal device by using a paging message; and the terminal device receiving the paging message checks whether the paging message is checked. Contains its group ID or device ID. According to an optional embodiment of the present invention, the information of the initiating paging is transmitted to the root paging and the information sent by the LuXinzhi network to the paging is sent. The sub-area of the sub-area of the sub-area of the sub-area of the sub-area is only included and the call is terminated: the packet is transmitted by the area and the message is 201230737. According to an optional embodiment of the present invention, the information for initiating paging further includes a paging reason; according to the paging reason in the information of the originating paging, the network device further includes a corresponding paging reason in the paging message, and informs the paging The terminal device needs to perform the operation; the terminal device that checks the packet identifier or the device identifier in the paging message further acquires the paging cause in the paging message, and performs corresponding operations according to the paging reason, according to one of the present invention. In an embodiment, the information for initiating the paging is from the upstream network device; the reason for the paging is the call setup or the uplink report; if the paging cause is the call setup, the terminal device initiates a call setup process to the network; if the paging cause is an uplink report, the terminal The device returns an upstream report. According to an optional embodiment of the present invention, the information for initiating the paging is from the operation and management device of the communication system; the reason for the paging is acquiring the system message, and the terminal device performs the corresponding operation according to the paging reason to read System message. According to an optional embodiment of the present invention, the communication system supports a machine type communication service, the acquisition system message is a system message for machine type communication, and the terminal device is a terminal device supporting machine type communication. According to an embodiment of the present invention, a network device for transmitting a paging message in a communication system is provided, the communication system further comprising at least one terminal device with a packet identifier and a device identifier, the network device including

The S 201230737 receiving device is configured to receive the information for initiating the paging, where the information for initiating the paging includes the group identifier of the called terminal device and/or the device identifier t paging object determining device, configured to determine, according to the received information of the initiated paging The paging terminal device, the paging terminal device may be determined according to the group identifier or the device identifier; the paging timing computing device is configured to calculate a paging occasion according to the group identifier of the paging device being called; the physical layer data generating device is configured to: Generating physical layer control information including a physical layer paging flag; paging message generating means for generating a paging message including a packet identifier and/or a device identifier of the called terminal device; and transmitting means for transmitting at a time corresponding to the paging occasion The physical layer information and the paging message. According to an optional embodiment of the present invention, the information of the initiated paging received by the receiving device further includes a paging cause; and the paging message generating device further carries the paging reason in the paging message. According to an optional embodiment of the present invention, the information of the initiated paging received by the receiving device is from the upper-level network device of the network device; the paging reason is call setup or uplink reporting. In accordance with an alternative embodiment of the present invention, the information of the originating page received by the receiving device is from the operating and management device of the communication system; the reason for the paging is to obtain a system message. According to an optional embodiment of the present invention, further, the information about the initiated paging received by the network-9 - 201230737 device further includes area information of the called terminal device; the network device further includes a paging area determining And a device, configured to determine, according to the area information of the called terminal device, a paging area for transmitting the paging message; and the sending device sends the physical layer information and the paging message only to the paging area according to the paging area output by the paging area determining device. According to an alternative embodiment of the present invention, the communication system supports a machine type communication service, the network device being an access network device supporting a machine type communication service; and the terminal device being a terminal device supporting machine type communication. According to an embodiment of the present invention, a terminal device is provided, including: a paging timing computing device, configured to calculate a paging occasion; a first receiving device, configured to receive a physical layer paging flag from a network device at a paging occasion; And means for receiving the paging message after the first receiving device receives the physical layer paging flag. According to an optional embodiment of the present invention, the method further includes: a device identity identifying device, configured to identify an identity of the terminal device, including a packet identifier and/or a device identifier, and a device identity checking device, configured to check whether the paging message is used in the paging message The paging device and/or the device identifier of the terminal device are included. Further, the paging timing calculation device is configured to calculate a paging occasion according to the group identifier of the terminal device. According to an optional embodiment of the present invention, the method further includes: a paging cause reading device: configured to check when the device identity check device

-10- S 201230737 The reason for the paging in the paging message is read when the terminal device's own packet identification and/or device identification is found; the paging reason processing device is configured to perform corresponding processing according to the paging reason. According to an alternative embodiment of the invention, when the reason for the paging is the call setup, the paging cause processing means initiates a call setup procedure to the network. According to an optional embodiment of the present invention, when the paging cause is an uplink report, the paging cause processing means returns an uplink report. In accordance with an alternative embodiment of the present invention, the paging cause processing device reads the system message when the paging reason is to read the system message. According to an alternative embodiment of the invention, the terminal device is a terminal device supporting machine type communication; the packet identification of the terminal device is a packet identification of a machine type communication service. [Embodiment] Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings. It should be noted that the technical solution of the present invention is mainly applicable to a communication system for supporting a terminal device having a packet function, in particular, as applicable to an MTC-based communication system, that is, the terminal device is an MTC terminal device, and the MTC terminal device is Grouping is grouped by the type of application they support. It also applies to other communication systems and their terminal equipment. Figure 1 shows a schematic diagram of a three layer paging mechanism in accordance with an embodiment of the present invention. It is applied to the terminal equipment with grouping function, carrying the identifiable grouping -11 - identification group label, and referring to the argument 201230737 and equipment identification of the frame in which the MTC call is not used in this picture. Thus, in the present invention, the identification and/or device identification is used to determine that the paged object has a three-layer paging mechanism. In the first layer, the present invention defines a paging occasion for transmitting a specific radio frame of a certain device or a group of devices. In the invention, the paging occasion utilizes a packet of the terminal device to give a paging diagram according to an embodiment of the present invention. The following is an example of the MTC terminal device that pages the MTC service. The paging occasion of the MTC is back to the MTC paging period, which is an integer multiple of the radio frame. MTC paging period 〖 The network can configure the MTC service and the existing H2H machine. The MTC paging occasion uses the MTC packet identifier to perform the following method, the system frame label of the radio frame (calculated, and the subframe identifier is calculated by the formula (2 SFN mod T = (T/N) * (group ID mod N), I_s = (group ID/N) mod Ns, where T is the paging period, n is the number of transmissions of the network configuration 'i_s is the subframe number, and Ns is a wireless number. The specific calculation method for determining the paging occasion is not. The network device sends the real terminal device at the time corresponding to the paging occasion. On this basis, the specific time frame of the call timing is specifically determined by the identifier. The machine and the paging cycle are used as examples to perform the example ring strength, paging & network configuration. , the communication different transmission determination, for example, SFN) is defined by the formula). (1) (2) The paging in the paging period is the paging layer of the present invention.

-12- S 201230737: The MTC device in the idle state wakes up at the MTC paging occasion corresponding to the packet identifier to which it belongs, and checks the paging flag of the physical layer. If the paging flag is not found, the paging process ends. If a paging flag is found, the second layer of paging operations and procedures are performed. At a specific paging occasion, only the terminal device corresponding to the specific paging occasion wakes up and checks the paging flag of the physical layer, the purpose of which is to reduce the paging range to only the specific MTC device paging; other terminals that are not paging The device remains idle and does not waste power. It should be noted that the MTC device has its own user identity, just like the existing H2H user device. And according to different groups, there is an associated group identifier, and the MTC device can know the MTC packet to which the MTC device belongs, and the group identifier is stored in the SIM card of the device; the grouping principle of the MTC can be assigned different according to the application of the MTC service. The MTC grouping, for example, smart meter reading, vending machine or public safety, is not limited to this and is not within the scope of the present invention. At the second level, on the paging, the paging message is sent on the empty intermediate plane to page the target device. In the sent paging message, the packet identifier of the called object and/or the user identifier of the terminal device are carried, and only the terminal device that reads the MTC packet identifier or its own device identifier that belongs to the third layer paging operation is entered. This will narrow the paging range. A plurality of terminal device packets or a plurality of terminal devices may be indicated in the same paging message. 'This paging message may be transmitted through a Radio Resource Control (RRC) signal. It is a packet identifier carrying only the paged object or a device identifier carrying only the paged object or both, depending on the cellular structure design of the paging message-13-201230737, which may be grouped by a group of devices. Primary cells, then the device is identified as a second-level cell; it is also possible that the grouping and device identification are independent, flat cells. The design of the present invention can be applied to the cell structure design of various paging messages, and will not be described herein. Further, at the second layer, the paging area for transmitting the paging message is determined according to the geographical area information of the called object, and the network can send the paging message only in the determined paging area. Geographical area information of the paging object, including, for example, community identification, tracking area (TA) identification, location area (LA) identification, or routing area (RA) identification. TA, RA, and LA are areas of core network layer mobility management, which are used to enable the core network device to track, identify, and control the location area where the terminal device is located, usually including one or more communities. The MTC terminal device is also taken as an example. The paging message carries the MTC packet identification and/or the subscriber identity of the MTC device such that the paging range is further reduced. Multiple MTC packets or multiple MTC devices can be paged at the same MTC paging occasion, at which level, which packets or which devices are paged are indicated. If the paging message carries the MTC packet identifier, all MTC devices belonging to the indicated packet need to respond to the paging message; one or more MTC devices can also be paged by the MTC device identifier carried by the paging message. If the paging message carries the MTC device identifier, only the instructed MTC device needs to respond to the paging message; that is, the paging process is performed only when the MTC terminal device of the MTC packet identifier or its own device identifier is found in the paging message. Layer 3 paging operation; if the MTC device does not find its own location in the paging message

-14- S 201230737 belongs to the MTC group identifier or its own device identifier, and the paging process ends. At the third level, the called terminal device is informed that the network needs their operation. That is, this layer informs all the devices that are being paged, and the network initiates the paging process: the terminal device responds accordingly. The reason for paging is included in the paging message. Possible reasons for paging include: call setup 'upline report or system message. Other reasons for paging are not excluded here. If the reason for the paging is call setup, the paged terminal device initiates a call setup procedure to the network. If the paging reason is the uplink report, it means that the network wants the paging device to give back a report; if the paging reason is to obtain the system message, it indicates that the network requires the terminal device to read the system message. Taking the MTC terminal device as an example, the MTC terminal device that finds the MTC packet identifier and/or its own device identifier that belongs to the paging message in the second layer further reads the paging reason in the paging message, and if the paging reason is the uplink report, That means that the network wants to be reported by the paging MTC device; if the paging reason is to obtain the MTC system message, it indicates that the network requires the MTC device to read the MTC system message in order to obtain, for example, reconfiguration information for the MTC service. Next, the detailed process of applying the present invention to different systems will be respectively described in four embodiments. Embodiment 1 describes a paging procedure for accessing a general terminal device having a packet function in a WCDMA system. In this example, the same grouping terminal device is paged and informed of changes to existing system messages. -15- 201230737 illustrates the behavior of the network side in conjunction with FIG. 3: In step S301, the network equipment base station receives a paging message from an operation and management (OAM) device of the WCDMA system, and the message carries the paging object information and the reason for the paging. . Among them, the paging object information is the group identification of a group of terminal devices: the reason for paging is to read general system messages. In step S302, the base station determines the paging object according to the group identifier of the group of terminal devices; in step S303, the base station calculates the paging occasion according to the group identifier of the terminal device; in step S304, the base station generates a paging message, in the paging The message carries the group identifier of the paged object; and the system message change flag in the paging message is set by using the method in the prior art; in step S3 05, the base station calculates the obtained paging occasion according to all the communities managed by the base station. Send an empty mediation paging message based on the terminal grouping. And the base station sets a corresponding physical layer paging flag and sends it on the physical layer paging indication channel. Referring to FIG. 4, the behavior of the terminal device is explained: In step S40 1 'the terminal device calculates the paging occasion of the device according to the terminal group identifier to which it belongs; in step S402, the terminal device in the idle state wakes up at the paging timing of its specific terminal. . At other times, the idle terminal device can turn off the receiver to save power. The waking terminal device monitors the physical layer control channel PDCCH; in step S403', the terminal device checks whether a paging flag is found, such as -16 -

S 201230737 No, the terminal device ends the operation of the paging process, returns to and waits to wake up to monitor the physical layer at the next paging occasion] PDCCH: if the paging flag is found, the terminal device executes ί t. In step S404, the terminal device reads Receiving a paging message; in step S405, the terminal device checks the device identifier and/or the packet identifier in the paging message, and if not, the operation of the terminal device paging process returns to the idle state and waits for the next wake-up monitoring entity layer control channel PDCCH; if the backup identifier and/or the packet identifier are read, the terminal device performs step S406. In step S406, the terminal device reads the system message to become the corresponding to the paging, and the terminal device reads the corresponding information transmitted in the system message system message. parameter. Embodiment 2 describes a paging procedure for a general terminal device that accesses the functions of the LTE (Long Term Evolution) system group. In this example, one or more terminal devices of a packet are paged and are called to establish a call. Referring to FIG. 3, the behavior of the network side is illustrated: In step S301, the network equipment enhanced base station (eNB, NodeB) receives a paging message from the upstream network device mobility management entity, and the message carries the paging object information and paging: It also indicates that the paging reason is call setup. The paging is the device identifier of one or more terminal devices and the group identifier to which they belong. 'The paging area information is one or more TA identifiers. The dad channel is idle. Step S404. Do you have your own design to end the paging occasion? The I-mark, and update the scores in the system belong to the same-associated network enhanced (MME) regional information object information device group, which is a list of -17-201230737 Τ A. In step S302, the enhanced base station determines the paging object according to the device identifier of the one or more terminal devices; and determines the corresponding community for transmitting the paging message according to the paging area information. In step S303, the enhanced base station identifies the group identifier according to the terminal device. Calculating the paging occasion; in step S304, the enhanced base station further determines that the paging cause is call setup; and the enhanced base station generates a paging message, and carries the packet identifier of the paging object and/or the device of one or more terminal devices in the paging message The identification and the reason for the paging of the call establishment; in step S3 0 5 'enhance the base station according to the 列表A list information in all the corresponding communities, 'in the calculated paging occasions, the short mediation paging message based on the terminal group is sent, the corresponding community refers to All communities included in the indicated TA range. And the enhanced base station sets a corresponding physical layer paging flag and sends the PDCCH on the physical layer control channel PDCCH. Referring to FIG. 4, the behavior of the terminal device is illustrated: In step S401, the terminal device calculates the paging occasion of the device according to the terminal group identifier to which it belongs; in step S402, the terminal device in the idle state makes a paging occasion at its specific terminal. wake up. At other times, the idle terminal device can turn off the receiver to save power. The waking terminal device monitors the physical layer control channel PDCCH; in step S403, the terminal device checks whether the paging flag is found, and if not, the terminal device ends the operation of the paging process and returns to the idle state -18-

S 201230737 and waits to wake up at the next paging occasion to monitor the physical layer control channel PDCCH; if the paging flag is found, the terminal device performs step S404 t. In step S404, the terminal device reads the paging message; in step S405, the terminal device checks the paging message. Whether there is its own device identification and/or group identification. If not, the terminal device ends the operation of the paging process, returns to the idle state and waits for the next paging occasion to wake up to monitor the physical layer control channel PDCCH; if it reads itself The device identifier and/or the packet identifier, the terminal device performs step S406; in step S406, the terminal device reads the specific paging cause, and the paging cause is found to be the call setup. As a response to the paging, the terminal device initiates a call setup procedure to the network. Embodiment 3 describes a paging procedure for accessing an MTC device in a WCDMA system. In this example, a group of MTC devices are paged and are required to read MTC system messages. Referring to FIG. 3, the behavior of the network is illustrated: In step S301, the network device RNC (Radio Network Controller) receives a paging message from an Operation and Management (OAM) device of the WCDMA system, the message carrying the paging object, and The reason for paging. The paging object information contains the MTC device grouping identifier to which the MTC device belongs. The reason for paging is to read the MTC system message. In step S302, the RNC determines the paging object based on the packet identification of the terminal device: and determines the corresponding community that transmits the paging message based on the paging area information. -19 - 201230737, in step S3 03, the RNC calculates a paging occasion according to the packet identifier of the terminal device; in step S304, the RNC further determines that the paging reason is to read the MTC system message; and, the RNC generates a paging message, and carries the paged message in the paging message The MTC device group identifier, and the paging cause indicated by the paging message is a read Μ TC system message. In step S3 05, the RNC sends an empty inter-media paging message at the calculated paging occasion in all communities it manages. And the RNC sets a corresponding paging flag on the physical layer paging indication channel and sends a physical layer paging indication channel. The behavior of the MTC terminal device is described in conjunction with FIG. 4': in step S401, the MTC terminal device calculates the paging occasion of the device according to the terminal group identifier to which it belongs; in step S402, the idle state MTC terminal device makes a paging occasion at its specific terminal. wake up. At other times, the idle state MTC terminal device can turn off the receiver to save power. The waking MTC terminal device monitors the physical layer paging indication channel: In step S403, the MTC terminal device checks whether the paging flag is found. 'If no' the MTC terminal device ends the operation of the paging process, returns to the idle state and waits for the next paging occasion. Wake up to monitor the physical layer paging means no channel; if the paging flag is found, the TC terminal device performs step S404; in step S404, the MTC terminal device reads the paging message; in step S405, the MTC terminal device checks whether there is any paging message

-20- S 201230737 own device identification and / or group identification, if not, the MT c terminal device ends the operation of the paging process 'return to idle state and wait for the next paging occasion to wake up to monitor the physical layer paging indication channel; After reading the device identifier and/or the packet identifier, the MTC terminal device performs step S406. In step S4, the MTC terminal device reads the specific paging cause. At this time, the reason for the paging is found to be the MTC system message; The paging TC terminal device performs the system message acquisition process, reads the μ TC system message and updates the corresponding parameters transmitted in the system message. Embodiment 4 describes a paging procedure for accessing an MTC device in an LTE system. In this example, the MTC server wishes to page a group of MTC terminal devices in a specific paging area, the paging object information is an MTC terminal device group identifier, and the paging area information is one or more ΤΑ identifiers, that is, a ΤΑ list; This group of MTC terminal devices is required to return information to the MTC server, that is, an uplink report. Referring to FIG. 3, the behavior of the network is illustrated: In step S301, the enhanced base station receives the paging message from the conference, and the message carries the paging object information and the paging area information, and the paging object information is the MTC terminal device group identifier, and the paging area information. Is one or more ΤΑ identifiers, that is, a ΤΑ list; and requires the group of MTC terminal devices to feed back information to the MTC server; in step S302, the enhanced base station determines the paging object according to the group identifier of the terminal device; and according to the paging area information Determine the corresponding community that sends the paging message. -21 - 201230737, in step S3 03, the enhanced base station calculates a paging occasion according to the group identity of the terminal device; in step S3 04, the enhanced base station further determines that the paging cause is an uplink report; and the enhanced base station generates a paging message, The paging message carries the packet identifier of the called MTC device, and the paging reason indicated by the paging message is an uplink report. In step S305, the base station is enhanced according to the TA identifier, and the empty intermediaries paging message is sent at the calculated paging occasion. The corresponding community refers to all the communities included in the indicated TA range. And the enhanced base station sets a corresponding paging flag on the physical layer control channel PDCCH and transmits the PDCCH. The behavior of the terminal device is described with reference to FIG. 4: In step S401, the MTC terminal device calculates the paging occasion of the device according to the terminal group identifier to which it belongs; in step S402, the terminal device in the idle state wakes up at the paging timing of the specific terminal. . At other times, the idle terminal device can turn off the receiver to save power. The waking terminal device monitors the physical layer control channel PDCCH; in step S403, the terminal device checks whether the paging flag is found, and if not, the terminal device ends the operation of the paging process, returns to the idle state, and waits for the next paging occasion to wake up to monitor The physical layer controls the channel PDCCH; if the paging flag is found, the terminal device performs step S404 » in step S4〇4, the terminal device reads the paging message;

-22-S 201230737 In step S4〇5, the terminal device checks whether the paging message has its own device identifier and/or group identifier. If not, the terminal device ends the operation of the paging process, returns to the open state and waits for the next A paging occasion wakes up to monitor the physical layer control channel PDCCH; if the device identifier and/or the packet identifier is read, the terminal device performs step S406; in step S406, the MTC terminal device reads the specific paging reason, and The reason for the paging is that the paging report is the uplink report, and the paging TC terminal device generates the data required for the report and sends it to the MTC server. It should be further noted that, for the reason that the paging reason is that the terminal device needs to perform the uplink report, the terminal device may send the reported data generating instant reply message to the target server of the communication system. Specifically, after the terminal device receives the paging message from the network device, the access stratum (AS) detects whether the device identifier and/or the group identifier included in the paging message and the device identifier of the terminal device belong to / or group identification matches. If yes, the device identifier and/or the packet identifier and the paging cause indication information in the paging message are sent to a non-access stratum (NAS). After receiving the information from the access layer, the non-access layer of the terminal device detects whether the received device identifier and/or the group identifier are consistent with the information stored by itself, and if they are consistent, according to the paging reason indication information, the reported data is Generate an instant reply message to the target server. The target server may be an MTC server; the terminal device may be a smart meter, a vending machine, an in-vehicle device, or the like. When the terminal device is a smart meter, the reported data may be the number of meter readings; when the terminal device is a -23-201230737 vending machine, the reported data is information of products that can be out of stock; when the terminal device is an in-vehicle device The information reported may be the location information of the vehicle, and the like. The terminal device can send an instant reply message to the target server through a short message service (SMS) form or a multimedia message service (MMS). 〇 Specifically, the terminal device can select the form of sending the instant reply message according to the default application. For example, when the data reported by the terminal device is the number of meter readings, the instant reply message can be sent to the target server through the short message service form; when the data reported by the terminal device is the video monitoring information, the multimedia message service can be used. The form sends an instant reply message to the target server. Optionally, the information of the target server can be stored in the terminal device in a pre-configured manner. In this way, the paged terminal device can know which server it should send the instant reply message to. It should be noted that the manner in which the terminal device sends an instant reply message to the target server may be in a manner existing in the prior art. For example, in an LTE/SAE system, the terminal device can send an instant reply message to the server through an enhanced base station and through an interface between the MME and the MSC based on the mode of the attached network, or Instant reply messages can be sent to the server via the IP network. In a circuit-switched WCDMA system, the terminal device can send an instant reply message to the server through the base station, the radio network controller, the MS C and the SMS entity; in the WCDMA system based on packet switching, -24-

S 201230737 The terminal device can send an instant reply message to the server through the UTRAN' SGSN and SMS entity. In the GSM system, the terminal device can send an instant reply message to the server through the base station, the base station controller, the MS C and the SMS entity. This is understood by those skilled in the art and will not be described here for the sake of brevity. Figures 5a, 5b show schematic diagrams of the structure of a network device in accordance with two embodiments of the present invention. The network device can be a base station, an enhanced base station, or a network controller, as well as other network devices suitable for use with the present invention. Referring to FIG. 5a, the network device 500 includes a detecting device receiving device 501, a paging object determining device 502, a paging timing calculating device 503, a physical layer data generating device 504, a paging message generating device 505, and a transmitting device 506. Specifically, the receiving device 501 For receiving the information of the initiated paging, the information for initiating the paging includes the group identifier and/or the device identifier of the paging device being called. The information for initiating the paging may be from the operation and management (OAM) device of the communication system of the network device 500, or may be from the upstream network device of the network device 500. For the Long Term Evolution (LTE), the upstream network The device is a Mobility Management Entity (MME). For the packet switched domain of the WCDMA system, the upstream network device is a Serving GPRS Support Node (SGSN). For the circuit switched domain of the WCDMA system, the upstream network device is a mobile services switching center. (MSC); the paging object determining device 502 is configured to determine, according to the information of the initiated paging received by the receiving device 501, the called terminal device, and the paged end device can be determined according to the group identifier or the device identifier. The paging timing computing device 503 is configured to calculate a paging occasion according to the group identifier of the paging device being called; the physical layer data generating device 504 is configured to generate physical layer control information including the physical layer paging identifier: the paging message generating device 505 For generating a packet identifier of the called terminal device determined by the paging object determining device 502 And the paging message of the device identifier; the sending device 506, configured to send the physical layer information generated by the physical layer data generating device 504 and the paging message generating device 505 to generate the paging message according to the time corresponding to the paging occasion calculated by the paging timing calculating device 503. Further, the information about the initiated paging received by the receiving device 501 further includes the paging reason information, and the paging message generating device 505 further carries the paging reason in the paging message, and the possible reasons for the paging include: the call setup 'uplink report or acquisition System messages, other reasons for paging are not excluded here. If the reason for the paging is call setup, the uplink report, the information for initiating the paging is generally from the upstream network device of the network device; if the reason for the paging is to obtain the system message, the information for initiating the paging generally comes from the OAM device of the system. The network device shown in FIG. 5b includes a detecting device receiving device 501, a paging object determining device 502, a paging timing calculating device 503, a physical layer data generating device 504, a paging message generating device 505, and a transmitting device 506, and further includes a paging area. Determining device 507, network device 510

The information of the initiated paging received by the receiving device 501 of the -26-S 201230737 further includes the geographical area information of the called terminal device, the geographical area information, including, for example, the community identifier, the tracking area (TA) identifier, and the location area (LA). ) Identification or routing area (RA) identification. TA, RA, and LA are areas of core network layer mobility management, which are used to enable the core network device to track, identify, and control the location area of the terminal device, usually including one or more communities. The paging area determining means 〇7 is configured to determine, according to the area information of the called terminal device, the paging area for transmitting the paging message; and output the paging area information to the transmitting device 506; the transmitting device 506 determines the output of the device according to the paging area The paging area sends physical layer information and paging messages only to the paging area. 6a, 6b, and 6c respectively show the structure of a terminal device according to three embodiments of the present invention. In FIG. 6a, the terminal device 610 includes a paging timing calculation device 601 for calculating a paging occasion; the first receiving device 702 is configured to wake up at a paging occasion to receive a physical layer paging flag from the network device; and the second receiving device 603 And for receiving the paging message after the first receiving device receives the physical layer paging flag. In Figure 6b, the terminal device 620 paging timing computing device 601, the first receiving device 602, the second receiving device 603, further includes: a device identity identifying device 604 for identifying the identity of the terminal device by using the packet identifier and the device identifier; If the MTC device is the same as the existing H2H user device, it has its own device identifier. And according to different groups, there is an associated group identifier, and the MTC device can know that the MTC packet 'packet identifier to which the -27-201230737 belongs can be stored in the SIM card of the device through the OAM method. And the paging timing computing device 601 calculates a paging occasion according to the group identifier of the terminal device; the device identity checking device 605' is configured to check whether the paging message received by the second receiving device 603 includes the terminal device's own packet identifier and/or device. Logo. In Figure 6c, the terminal device 63 0 paging timing computing device 601, the first receiving device 602, the second receiving device 603, the device identity identifying device 604, the device identity checking device 605, further includes: a paging cause reading device 606: For detecting the paging cause in the paging message when the device identity checking device detects the packet identifier and/or the device identifier of the terminal device, the paging cause processing device 607 is configured to perform corresponding processing according to the paging reason. When the paging reason is the call setup, the paging cause processing device 607 initiates a call setup process to the network; when the paging cause is an uplink report, the paging cause processing device 607 returns an uplink report; when the paging reason is reading the system message, the paging cause processing Device 607 reads the system message and updates the parameters in the system message. Further, an instant reply message generating device 608 is further included. For the case where the paging cause is that the terminal device needs to perform the uplink report, the instant reply message generating device 608 can generate an instant reply message to the reported data and pass the sending device 60 9 . Send to the target server of the communication system. The terminal device can send an instant reply message to the target server in the form of a short message service (SMS) or a multimedia message service (MMS). The generation and transmission of instant reply messages have been described in detail above.

-28- S 201230737 will not be repeated here. The present invention provides a viable method for paging a terminal device, particularly an MTc terminal device. The method provided by the present invention divides the paging process into three layers 'step by step narrowing the paging range. The method can be paged to one or more terminal devices or to one or more terminal devices of a group of terminal devices or a group of terminal devices. Paging for multiple end devices can be implemented in a single . paging message without adding extra signal load to the system. The idle terminal device wakes up according to the specific paging occasion in which the packet identifier to which it belongs belongs. The packet identifier ' used to calculate the paging occasion can correspond to the application of the terminal device, and different service packets are assigned to different applications. The new method of the present invention solves the problem of the existing paging mechanism' and provides an efficient and flexible paging method for the terminal device supporting the packet function. The advantages are: 1) paging can only be performed for specific terminal devices with grouping functions; 2) no negative impact on paging of H2 devices in existing networks; 3) paging for one or more terminal devices It is also possible to page a terminal device of one or more of a group of terminal devices or a group of terminal devices. The invention can be implemented in hardware, software, firmware, and combinations thereof. Those skilled in the art will recognize that the present invention can also be embodied in a statistical machine product disposed on a signal bearing medium for use by any suitable data processing system. Such signal bearing media can be a transmission medium or a recordable medium for machine readable information, including magnetic media, optical media or its appropriate media. Examples of recordable media include: magnetic or floppy disks in a hard disk drive, optical disks for optical disk drives, magnetic tape, and other media as will occur to those of skill in the art. Those skilled in the art will recognize that any communication device having suitable programming means will be capable of performing the steps of the method of the present invention as embodied in a program product. It will be understood from the above description that modifications and variations of the various embodiments of the invention may be made without departing from the spirit of the invention. The description in the specification is for illustrative purposes only and should not be considered as limiting. The scope of the invention is only limited by the scope of the patent application. In addition, it is to be understood that the term "comprising" does not exclude other elements or steps. The singular does not exclude the plural. The plurality of units or devices recited in the system claims can also be implemented by a unit or device by software or hardware. The first, second, etc. words are used to denote names and do not denote any particular order. BRIEF DESCRIPTION OF THE DRAWINGS The above and other features, objects, and advantages of the present invention will become more apparent and understood from the Detailed Description of Description A schematic diagram of a three-layer paging mechanism in accordance with an embodiment of the present invention. Fig. 2 shows a schematic diagram of paging occasions and paging periods in accordance with an embodiment of the present invention. Figure 3 is a flow chart showing the process of paging a network device in accordance with an embodiment of the present invention. -30-

S 201230737 FIG. 4 is a flow chart showing a paging process of a terminal device according to an embodiment of the present invention. Fig. 5 is a diagram showing the structure of a network device in accordance with an embodiment of the present invention. Fig. 6 is a view showing the structure of a terminal device according to an embodiment of the present invention. In all of the above figures, the same reference numerals indicate the same or similar features or functions. [Description of main component symbols] 5〇〇: Network device 5 〇1: Receiving device 502: paging object determining device 5 03: paging timing computing device 504: physical layer data generating device 505: paging message generating device 506: transmitting device 5 07: paging area determining means 510: network device 601: paging timing calculating means 602: first receiving means 603: second receiving means: device identity identifying means 6: 5: device identity checking means - 31 - 201230737 606: paging Reason reading device 607: paging cause processing device 6 1 0 : terminal device 620 : terminal device 6 3 0 : terminal device

Claims (1)

201230737 VII. Patent application scope: 1. A method for paging a terminal device in a communication system, the communication system comprising a network device and a terminal device, the method comprising: the network device receiving the information for initiating paging; the network device determining The paging device determines the paging occasion; the network device sends the physical layer paging flag and the paging message at the paging time corresponding to the paging occasion, and the terminal device checks the physical layer paging flag at the paging occasion; further 'checks the corresponding paging occasion The terminal device to the physical layer paging flag receives the paging message. The method according to claim 1, wherein the information for initiating paging includes a packet identifier and/or a device identifier of the called terminal device, and the paging terminal device can be based on the group identifier or device Determining to determine; the paging occasion is determined according to the group identifier of the terminal device; the network device sends the packet identifier and/or the device identifier of the paged terminal device to the terminal device by using the paging message; and the terminal device receiving the paging message checks The method of claim 2, wherein the information of the initiating paging further includes area information of the called terminal device; the network device is based on The area information of the paged terminal device determines the paging area for transmitting the paging message; and only sends the physical layer paging flag and the paging message to the paging area. 4. The method according to any one of claims 1 to 3, wherein the information of the initiating paging further includes a reason for paging; according to the reason for the paging in the information of the initiating paging, the network The device further includes a corresponding paging cause in the paging message, and notifies the called terminal device of the operation that needs to be performed; and the terminal device that checks the packet identifier or the device identifier in the paging message further acquires the paging reason in the paging message, and Perform the corresponding operation according to the reason of the paging. 5. The method of claim 4, wherein the information for initiating paging is from an upstream network device; the reason for the paging is call setup or uplink reporting; and if the paging cause is call setup, the terminal device initiates to the network. The call setup process; if the paging cause is an uplink report, the terminal device returns an uplink report. 6. The method according to claim 4, wherein the information for initiating paging is from an operation and management device of the communication system; the reason for the paging is obtaining a system message, and the terminal device performs corresponding operations according to the paging reason. To read system messages. 7. The method according to any one of claims 1 to 6, wherein the communication system supports a machine type communication service, the acquisition system message being a system message of a machine type communication, the terminal device being a support machine class Terminal equipment for communication. 8. A network device for transmitting a paging message in a communication system, the communication system further comprising at least one terminal device with a packet identifier and a device identifier, the network device comprising: receiving means for receiving information for initiating paging The information for initiating the paging includes the group identifier and/or the device identifier of the called terminal device: -34- S 201230737 paging object determining device, configured to determine, according to the received information of the initiated paging, the called terminal device is called The terminal device may be determined according to its group identifier or device identifier; the paging timing computing device is configured to calculate a paging occasion according to the group identifier of the called terminal device; and the entity layer data generating device is configured to generate an entity including the physical layer paging flag a layer control information; a paging message generating device, configured to generate a paging message including a packet identifier and/or a device identifier of the called terminal device; and a sending device, configured to send the entity layer information and the paging message at a time corresponding to the paging occasion. 9. According to the network described in claim 8 Preparation, wherein 'the receiving means initiates paging information further includes paging reasons; the paging message generating means further carried in the paging message paging reasons. The network device according to claim 9, wherein the information received by the receiving device for initiating paging is from a higher-level network device of the network device; the reason for the paging is call setup or uplink reporting. The network device of claim 9, wherein the information received by the receiving device for originating paging is from a communication and management device of the communication system; the reason for the paging is obtaining a system message. The network device according to any one of the preceding claims, wherein, further, the information that the network device receives the initiated paging further includes the area of the called terminal device. The network device further includes paging area determining means for determining a paging area for transmitting the paging message according to the -35-201230737 area information of the called terminal device; and the transmitting device determines the paging area output by the device according to the paging area, The physical layer information and the paging message are sent to the paging area. The network device according to any one of claims 8 to 12, wherein the communication system supports a machine type communication service, the network device being an access network device supporting a machine type communication service The terminal device is a terminal device that supports machine type communication. A terminal device, comprising: a paging timing computing device, configured to calculate a paging occasion; a first receiving device, configured to receive a physical layer paging flag from a network device at a paging occasion; and a second receiving device, configured to be the first The receiving device receives the paging message after receiving the physical layer paging flag. The terminal device according to claim 14, wherein the device further includes: a device identity device: an identity for identifying the terminal device, including a group identifier and a device identifier: a device identity check device, Checking whether the paging device includes its own packet identifier and/or device identifier in the paging message; further 'the paging timing computing device is configured to calculate a paging occasion according to the packet identifier of the terminal device. The terminal device according to claim 14 or 15 of the patent application, further comprising: a paging cause reading device: for detecting the terminal device when the device identity checking device detects -36-S 201230737 When the packet identifier and/or the device identifier are used, the reason for the paging in the paging message is read; the paging cause processing device is configured to perform corresponding processing according to the paging reason. The terminal device according to claim 16, wherein when the paging cause is call establishment, the paging cause processing device initiates a call setup procedure to the network. 18. The terminal device according to claim 16, wherein when the paging cause is an uplink report, the paging cause processing device returns ~ uplink reports. The terminal device according to claim 16, wherein the reason for the paging is to read the system message 'the paging cause processing device reads the system message. The terminal device according to any one of claims 14 to 19, wherein the terminal device is a terminal device supporting machine type communication; the group identification of the terminal device is a group identification of a machine type communication service. -37-