WO2012113245A1

WO2012113245A1 - Service access method, device, and system

Info

Publication number: WO2012113245A1
Application number: PCT/CN2011/082370
Authority: WO
Inventors: 彭江萍; 江建军; 况振东
Original assignee: 中兴通讯股份有限公司
Priority date: 2011-02-23
Filing date: 2011-11-17
Publication date: 2012-08-30
Also published as: CN102651900A

Abstract

Disclosed are a service access method, device, and system. The method comprises: a network side apparatus dividing a predetermined period of time or a predetermined time interval into the predetermined number of time windows; the network side apparatus dividing terminals into a plurality of terminal groups according to a predetermined algorithm, the plurality of terminal groups corresponding to one or more time windows in the predetermined number of time windows respectively; and the network side apparatus sending, to a terminal, a message carrying information of one or more time windows corresponding to a terminal group having the terminal, so that the terminal performs service access in the one or more time windows corresponding to the terminal. Through the present invention, the network congestion rate is reduced.

Description

TECHNICAL FIELD The present invention relates to the field of communications, and in particular to a service access method, apparatus, and system. BACKGROUND OF THE INVENTION Current mobile communication networks, such as: Global System for Mobile Communication (GSM), Universal Mobile Telecommunications System (UMTS), Time Division Synchronous Code Division Multiple Access (Time Division) -Synchronous Code Division Multiple Access (TD-SCDMA for short) provides communication services for human-held mobile terminals. In recent years, with the rise of Internet of Things applications, cellular mobile communication networks have gradually begun to provide communication services for embedded terminals installed on various objects. It breaks through the space-time constraints and geographical barriers of traditional communication methods, freeing enterprises and the public from cable shackles, allowing customers to more effectively control costs, reduce installation costs, and is simple and convenient to use. In addition, the growing demand is driving the continuous development of IoT applications. Contrary to the continuous growth of information processing capabilities and network bandwidth, the means of information acquisition is far behind, and the Internet of Things application satisfies people's needs. Demand, through which people can monitor the external environment in real time, enabling large-scale, automated information collection. Therefore, the Internet of Things can be widely used in industrial applications, home applications, personal applications, and the like. Information sensing devices such as Radio Frequency Identification (RFID), infrared sensors, global positioning systems, and laser scanners installed on various objects are connected through a cellular mobile communication network and an information center for information exchange. And communication to achieve intelligent identification, location, tracking, monitoring and management of objects. Industry applications such as: traffic monitoring, warning systems, marine rescue, vending machines, car payment, etc. Home applications such as: automatic meter reading, temperature control, etc. Personal applications such as: life detection, remote diagnosis, etc. However, if the terminal accesses the service at the same time, the communication system is congested. In view of the problem that the terminal accesses the network system at the same time in the related art, the network system is congested, and no effective solution has been proposed yet. SUMMARY OF THE INVENTION The present invention provides a service access method, apparatus, and system to address at least the problem in the related art, in which the service access of the terminal at the same time causes the network system to be congested. According to an aspect of the present invention, a service access method is provided, including: the network side device divides a predetermined time period or a predetermined time interval into a predetermined number of time windows; and the network side device divides the terminal into multiple terminals according to a predetermined algorithm. a packet, where the plurality of terminal groups respectively correspond to one or more time windows of the predetermined number of time windows; the network side device sends a message carrying the information of the one or more time windows corresponding to the terminal group of the terminal to the terminal, The terminal is used for performing service access in one or more time windows corresponding to the terminal. Preferably, the network side device sends the message carrying the information of the one or more time windows corresponding to the terminal group of the terminal to the terminal, where the network side device sends the terminal group carrying the terminal corresponding to one or more times by using the broadcast message. A message of the window information is sent to the terminal. Preferably, the network side device comprises one of the following: a radio access network device, a core network device, and an Internet of Things information center. Preferably, the predetermined algorithm comprises one of: a modulus method, grouping according to service priority; a message of information of one or more time windows corresponding to the terminal group, including: length of one or more time windows; one or more The start time of the time window; the duration or end time of one or more time windows. According to another aspect of the present invention, a service access method is provided, including: receiving, by a terminal, a message sent by a network side device, where the message carries information of one or more time windows corresponding to a terminal group of the terminal; Determining a terminal group in which the terminal is located according to a predetermined algorithm; the terminal performs service access in one or more time windows corresponding to the terminal group in which the terminal is located. Preferably, the terminal comprises one of the following: a mobile terminal, an Internet of Things terminal. According to another aspect of the present invention, a service access apparatus is further provided, which is applied to a network side device, and includes: a first dividing module, configured to divide a predetermined time period or a predetermined time interval into a predetermined number of time windows; a second dividing module, configured to divide the terminal into a plurality of terminal groups according to a predetermined algorithm, where the plurality of terminal groups respectively correspond to one or more time windows of the predetermined number of time windows; and the sending module is configured to carry the sending A message of the information of one or more time windows corresponding to the terminal group of the terminal where the module is located is sent to the terminal, and the terminal is set to perform service access in one or more time windows corresponding to the terminal. Preferably, the sending module is configured to send, by using a broadcast message, a message carrying information of one or more time windows corresponding to the terminal group of the terminal to the terminal. According to another aspect of the present invention, a service access apparatus is further provided, which is applied to a terminal, and includes: a receiving module, configured to receive a message sent by a network side device, where the message carries a terminal group of the terminal where the receiving module is located Information corresponding to one or more time windows; a determining module, configured to determine the terminal according to a predetermined algorithm The terminal group is located in the service access module, and is configured to perform service access in one or more time windows corresponding to the terminal group of the terminal where the service access module is located. According to another aspect of the present invention, a service access system is further provided, including: the foregoing service access device (applied to a network side device) and the foregoing service access device (applied to a terminal). The network side device divides the predetermined time period or the predetermined time interval into a predetermined number of time windows by using the network side device; the network side device divides the terminal into a plurality of terminal groups according to a predetermined algorithm, where the plurality of terminal groups respectively correspond to the predetermined number of One or more time windows in the time window; the network side device sends a message carrying information of one or more time windows corresponding to the terminal group to the terminal, and is used for the terminal to perform service access within a predetermined time window, and the solution is solved. The problem of network congestion caused by terminal service access, and thus the effect of reducing network congestion. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are set to illustrate,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, In the drawings: FIG. 1 is a first flowchart of an access method according to an embodiment of the present invention; FIG. 2 is a second flowchart of an access method according to an embodiment of the present invention; FIG. 3 is a preferred embodiment according to the present invention. FIG. 4 is a flow chart of a broadcast message according to an embodiment of the present invention; FIG. 5 is a schematic diagram of a network side device assigning a plurality of time windows to a plurality of groups according to an embodiment of the present invention; A first structural block diagram of an access device according to an embodiment of the present invention; FIG. 7 is a second structural block diagram of an access device according to an embodiment of the present invention; and FIG. 8 is a structural block diagram of an access device according to an embodiment of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. The present embodiment provides a service access method. FIG. 1 is a first flowchart of an access method according to an embodiment of the present invention. As shown in FIG. 1, the method includes: Step S102: A network side device will perform a predetermined time period. Or the predetermined time interval is divided into a predetermined number of time windows; Step S104: The network side device divides the terminal into a plurality of terminal groups according to a predetermined algorithm, where the plurality of terminal groups respectively correspond to one or more times of a predetermined number of time windows Step S106: The network side device sends a message carrying the information of one or more time windows corresponding to the terminal group of the terminal to the terminal, where the terminal performs service access in one or more time windows corresponding to the terminal. . In the related art, when multiple services collide at the same time, the terminal is allowed to perform multiple retransmissions, and the time interval between retransmissions is a random value. If the number of IoT terminals that may initiate access in a cell reaches more than 1000, most of the terminals cannot access after multiple collisions, resulting in service access failure. With the service access method of this embodiment, when a large number of terminals are simultaneously accessed, the terminal can be accessed in batches according to the time window, which avoids network congestion and improves the utilization of network resources. Preferably, the network side device sends the message carrying the information of the one or more time windows corresponding to the terminal group of the terminal to the terminal, where: the network side device carries information of one or more time windows corresponding to the terminal group of the terminal. The message is sent to the terminal. With the preferred embodiment, the existing signaling is used for message transmission, which reduces the signaling cost. Preferably, the network side device comprises one of the following: a radio access network device, a core network device, and an Internet of Things information center. With the preferred embodiment, the utility of the service access method is improved. Preferably, the predetermined algorithm comprises one of the following: modulus method, grouping according to service priority. By means of the modulo method of the preferred embodiment, the terminal grouping is implemented by a simple method; by the priority grouping method of the preferred embodiment, the number of time windows and the length of the time window corresponding to the group to which the terminals of different priorities belong Differently, the problem that the probability of successful or failed service access of different priorities of the terminal in the related art is overcome can provide better service quality for high-priority services and improve the fairness and rationality of the system. Preferentially, the message of the information of the one or more time windows corresponding to the terminal group includes: a length of one or more time windows; a start time of one or more time windows; a duration or an end time of one or more time windows . With the preferred embodiment, the flexibility of the terminal to determine the time window method is improved. This embodiment provides a service access method. FIG. 2 is a second flowchart of an access method according to an embodiment of the present invention. As shown in FIG. 2, the method includes: Step S202: The terminal receives the message sent by the network side device, where the message carries information of one or more time windows corresponding to the terminal group of the terminal. Step S204: The terminal determines the terminal group where the terminal is located according to a predetermined algorithm. Step S206: Service access is performed within one or more time windows corresponding to the terminal group in which the terminal is located. Through the above steps, the terminal performs service access according to the time window corresponding to the pre-divided terminal group, which avoids network congestion caused by the service access of the terminal at the same time, reduces network congestion, and achieves network saving. Effect of Resources and Wireless Spectrum Resources Preferably, the terminal comprises one of the following: a mobile terminal, an Internet of Things terminal. With the preferred embodiment, the flexibility of the service access method is improved. It should be noted that the IoT terminal here is also called Machine to Machine (M2M) terminal in the computer and communication industry, and is also called MTC (Machine Type Communication) in the 3rd Generation Partnership Project. )device. In the related art, one method for solving the problem of network resource congestion caused by simultaneous access of a large number of IoT terminals is to increase the network resource configuration in the cell, but the IoT terminal only has a simultaneous access in a small part of the time. Most of the time, the traffic in the cell is not large, which will cause the network resources to be idle most of the time, resulting in waste of network device resources and wireless spectrum resources. Through the method of the embodiment, the Internet of Things terminals are dispersed in multiple time windows, which not only solves the network congestion caused by the terminal service access in the related art, but also achieves the effects of saving network equipment resources and wireless spectrum resources. Embodiment 1 The present invention provides a service access method, and this embodiment combines the above embodiments and preferred embodiments thereof. The method includes the following steps 1 to 3. Step 1: The mobile communication network divides a certain time period into a plurality of time windows, and allocates the time windows to a plurality of terminal groups, and one terminal group may correspond to one or more time windows; Step 2: the mobile communication network notifies the terminal The information of one or more time windows corresponding to the terminal grouping; Step 3: The terminal accesses the network to perform services in the time window corresponding to the terminal group to which the terminal belongs. Preferably, in step 3 above, the terminal may determine that the time point for starting the service itself is the time window start time plus a delay time. However, the point in time at which the service is initiated must be within the corresponding time window of the group. In this embodiment, a method for grouping an Internet of Things terminal in a cell to solve a network resource congestion problem caused by a large number of IoT terminals simultaneously accessing the network in the cell is solved. Embodiment 2 This embodiment provides a service access method. This embodiment combines the foregoing embodiments and preferred embodiments thereof. It should be noted that the hardware module in this embodiment includes the following components: Mobile terminal system side device (referred to as terminal): refers to a mobile terminal held by a human or an Internet of Things terminal. The following is an example of an Internet of Things terminal in the GSM system. Mobile network system network side device (referred to as network side): Refers to all devices except the terminal in the mobile communication system, including radio access network equipment, core network equipment, and Internet of Things information center. The following is an example of a Base Station Subsystem (BSS) in the GSM system. FIG. 3 is a flowchart of an access method according to a preferred embodiment of the present invention. As shown in FIG. 3, the processing method of the flow part in this embodiment includes the following steps S302 to S314. Step S302: The mobile communication system network side device (such as BSS) divides the time into several consecutive time windows. The period of time may be arbitrarily specified, or may be a certain period of time in the mobile communication system, such as a repeat period of a time division multiple access (TDMA) frame number in the GSM system. Step S304: The BSS notifies the packet information to all terminals in the cell by using a broadcast message. The grouping information may include: information of the total time period (start time, duration or end time), length of a single time window, number of packets. 4 is a flow of a broadcast message transmission according to an embodiment of the present invention. As shown in FIG. 4, the broadcast message sending process does not change compared with the broadcast message sending process in the prior art, but the packet information, the terminal and the packet correspondence calculation method are added to the broadcast message. Step S306: The BSS notifies all terminals in the cell by using the broadcast message to calculate the correspondence between the terminal and the packet. The calculation method includes: using the terminal's International Mobile Subscriber Identity (IMSI) or the international mobile equipment identification code (International Mobile) Equipment Identity (IMEI) is used as the terminal identifier to calculate the group to which the terminal belongs. The last m bits (for example, m = 3) of the terminal identifier are used to calculate the group to which it belongs. It should be noted that the BSS can group the terminals according to the priority of the terminal, and group the terminals with the same priority into one group. Before the service access, both the network side and the terminal have learned the priority of the service in the system, and the terminal has specified the priority of the service to be initiated. Therefore, the time window information corresponding to the priority group packet is sent to the terminal. Service access of the terminal can be implemented. Step S308: The terminal receives the correspondence information calculation method of the packet information, the terminal, and the packet by using the broadcast message. Step S310: The terminal calculates the correspondence between the terminal and the packet according to the correspondence between the terminal and the packet, and takes the number of the last m-bit pair of the IMSI or the IMEI. Module, the result is the sequence number of the group to which the terminal belongs. For example: 19988 MOD 3 = 2, then the terminal belongs to the group with sequence number 2. FIG. 5 is a schematic diagram of a network side assigning a plurality of time windows to a plurality of groups according to an embodiment of the present invention. As shown in FIG. 5, a long time is divided into 15 time windows, and 15 time windows are allocated to 3 groups. The time windows 1, 4, 7, 10, 13 are assigned to the terminal group A, the time windows 2, 5, 8, 11, 14 are assigned to the terminal group B, and the time windows 3, 6, 9, 12, 15 are allocated. The terminal group C is given. It should be noted that, in other embodiments, the number of time windows corresponding to different groups and the length of a single time window may be different; time windows of different groups may also partially or completely overlap. When the terminals are grouped according to the service priority, the time window corresponding to the group to which the low-priority service belongs may be included in the time window corresponding to the group to which the high-priority service belongs, so that the time ratio of the high-priority service can occupy the system resources. Low-priority services can take up more time on system resources. Step S312: The terminal calculates the time window to which the terminal belongs according to the group information received in step S308 and the group number of the terminal obtained in step S310, and the start time and end time of each time window. Step S314: The subsequent service initiation and data transmission and reception of the terminal are performed in the time window calculated in step S312. The process ends. With the preferred embodiment, a large number of IoT terminals within a cell are spread across multiple time windows for access. Compared with the method for increasing network resource configuration, the present invention can save network equipment resources and wireless spectrum resources. Compared with the method for randomly delaying service requests for all terminals, the present invention can reduce the number of collisions and reduce the total duration required for all terminals to successfully access. It should be noted that, by using the method in this embodiment, compared with the prior art, the network device resources and the wireless spectrum resources are saved, and the total delay required for all the terminals to successfully access the network is reduced. The present embodiment provides a service access device, which is applied to a network side device. FIG. 6 is a first structural block diagram of an access device according to an embodiment of the present invention. As shown in FIG. 6, the device includes: a first partitioning module. 62. The second dividing module 64 and the transmitting module 66. The above structure will be described in detail below. The first dividing module 62 is configured to divide the predetermined time period or the predetermined time interval into a predetermined number of time windows; the second dividing module 64 is connected to the first dividing module 62, and is configured to divide the terminal into multiple terminals according to a predetermined algorithm. a grouping, wherein the plurality of terminal groups respectively correspond to one or more time windows of the predetermined number of time windows; the sending module 56 is connected to the second dividing module 64, and is configured to group the terminal group carrying the terminal corresponding to one or more The message of the information of the time window is sent to the terminal, and is used for the terminal to perform service access in one or more time windows corresponding to the terminal. Preferably, the sending module 66 is configured to send, by using a broadcast message, a message that carries information of one or more time windows corresponding to the terminal group of the terminal to the terminal. The embodiment provides a service access device, which is applied to the terminal. FIG. 7 is a second structural block diagram of an access device according to an embodiment of the present invention. As shown in FIG. 7, the device includes: a receiving module 72, a determining module 74, and a service access module 76. The foregoing structure is described in detail below. . The receiving module 72 is configured to receive a message sent by the network side device, where the message carries the receiving module

The information of one or more time windows corresponding to the terminal group of the terminal where the terminal is located; the determining module 74 is configured to determine the terminal group where the terminal is located according to a predetermined algorithm; the service access module 76 is connected to the receiving module 72 and the determining module 74, and is configured to The service access is performed in one or more time windows corresponding to the terminal group of the terminal where the service access module 76 is located. The present embodiment provides a service access system. FIG. 8 is a structural block diagram of an access system according to an embodiment of the present invention. As shown in FIG. 8, the system includes: a service access device (applied to a network side device). And the service access device (applied to the terminal) 4, the service access device (applied to the network side device) 2 has a specific structure as shown in FIG. 6, and the specific structure of the service access device (applied to the terminal) 4 is as shown in FIG. Show, no longer repeat here. With the above embodiments, an access method, an apparatus, and a system are provided. The network side device divides a predetermined time period or a predetermined time interval into a predetermined number of time windows. The network side device divides the terminal into multiple terminals according to a predetermined algorithm. a packet, where the plurality of terminal groups respectively correspond to one or more time windows of the predetermined number of time windows; the network side device sends a message carrying the information of the one or more time windows corresponding to the terminal group of the terminal to the terminal, It is used for the terminal to perform service access within a predetermined time window, and solves the problem of network congestion caused by terminal service access, thereby achieving the effect of reducing network congestion. Industrial Applicability The network side device in the technical solution of the present invention divides a predetermined time period or a predetermined time interval into a predetermined number of time windows, and the network side device divides the terminal into a plurality of terminal groups, and the plurality of terminal groups respectively correspond to a predetermined number One or more time windows in the time window, the network side device obtains its corresponding time window, and accesses in the corresponding time window, avoids network congestion caused by terminal service access, and saves network equipment resources and wireless spectrum. The effect of the resource. Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device so that they may be stored in the storage device by the computing device, or they may be separately fabricated into individual integrated circuit modules, or Multiple modules or steps are made into a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software. The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

Claim

1. A service access method, including:

The network side device divides the predetermined time period or the predetermined time interval into a predetermined number of time windows; the network side device divides the terminal into a plurality of terminal groups according to a predetermined algorithm, where the plurality of terminal groups respectively correspond to the predetermined number One or more time windows in a time window;

Transmitting, by the network side device, a message that carries the information of the one or more time windows corresponding to the terminal group of the terminal to the terminal, where the terminal is used by the terminal corresponding to the one or more Service access within the time window.

The method according to claim 1, wherein the sending, by the network side device, the message carrying the information of the one or more time windows corresponding to the terminal group of the terminal to the terminal comprises:

And sending, by the network side device, a message carrying the information of the one or more time windows corresponding to the terminal group of the terminal to the terminal by using a broadcast message.

The method according to claim 1 or 2, wherein the network side device comprises one of the following: a radio access network device, a core network device, and an Internet of Things information center.

The method according to claim 1 or 2, wherein the predetermined algorithm comprises one of: a modulus method, grouping according to a service priority; and the one or more time windows corresponding to the terminal grouping The message of the information includes: a length of the one or more time windows;

a start time of the one or more time windows;

The duration or end time of the one or more time windows.

5. A service access method, including:

The terminal receives the message sent by the network side device, where the message carries information of one or more time windows corresponding to the terminal group of the terminal;

Determining, by the terminal, a terminal group in which the terminal is located according to a predetermined algorithm; The terminal performs service access in the one or more time windows corresponding to the terminal group in which the terminal is located. The method according to claim 5, wherein the terminal comprises one of the following: a mobile terminal, an Internet of Things terminal. A service access device, applied to a network side device, includes:

a first dividing module, configured to divide the predetermined time period or the predetermined time interval into a predetermined number of time windows;

a second dividing module, configured to divide the terminal into a plurality of terminal groups according to a predetermined algorithm, where the plurality of terminal groups respectively correspond to one or more time windows of the predetermined number of time windows; and the sending module is configured to Transmitting, to the terminal, a message that carries the information of the one or more time windows corresponding to the terminal group of the terminal, where the terminal performs a service in the one or more time windows corresponding to the terminal Access. The apparatus according to claim 7, wherein

The sending module is configured to send, by using a broadcast message, a message carrying the information of the one or more time windows corresponding to the terminal group of the terminal to the terminal. A service access device, applied to a terminal, includes:

The receiving module is configured to receive a message sent by the network side device, where the message carries information of one or more time windows corresponding to the terminal group of the terminal where the receiving module is located;

a determining module, configured to determine, according to a predetermined algorithm, a terminal group in which the terminal is located; the service access module, configured to perform service access in the one or more time windows corresponding to the terminal group of the terminal where the service access module is located . A service access system, including:

A service access device according to claim 7 or 8, and a service access device according to claim 9.