CN102647801A - Communication method and equipment on common control channel (CCCH) - Google Patents

Abstract

Embodiments of the present invention provide a communication method and device on a common control channel. The method includes: the first terminal receives a message sent by a network side device, the message includes information indicating that the first terminal uses the allocated common control channel CCCH; the type of the first terminal is the first type, and is allocated to The CCCH used by the first terminal is dedicated to the first type of terminal; the first terminal communicates with the network side device on the allocated CCCH according to the information. The terminal includes a receiving module and a communication module. The network side equipment includes: a distribution module and a sending module. The solutions provided by the embodiments of the present invention can control various types of terminals to use different CCCHs.

Description

Communication method and device on common control channel

technical field

The embodiments of the present invention relate to communication technologies, and in particular to a communication method and device on a common control channel.

Background technique

In the Global System for Mobile Communications (GSM for short), if the terminal needs to establish communication with the network, it needs to pass the uplink random access channel (CCCH) of the Common Control Channel (Common Control Channel, CCCH for short). Random Access Channel, referred to as: RACH) sends a message to the network to apply for a signaling channel to the system, and the network side device will determine the allocated channel type according to the channel request. The message sent on the RACH is called a channel request (Channel Request or EGPRS Packet Chanel Request, referred to as: CR). After receiving the CR sent by the terminal, the network side device will send an immediate assignment message on the downlink Access Grant Channel (AGCH for short) of the CCCH. After receiving the immediate assignment message, the terminal indicates that the terminal has successfully initiated the access grant channel. Input, the terminal will establish a connection with the network side device in the subsequent process, and perform signaling or data transmission.

With the development of network technology, there are not only user-to-user (Human to Human, abbreviated as: H2H) terminals, but also a large number of machine-to-machine (abbreviated as: M2M) terminals. In addition to interconnection, the M2M terminal may also be connected to a Machine Type Communication (MTC for short) server. A large number of M2M terminals will bring some new problems. For example, once a fault such as a power outage or an earthquake occurs in a certain area, these M2M terminals need to report such events to the machine type communication server, and the connection with the network side will be activated at the same time. At this time, the network may suddenly encounter a large number of connections of M2M terminals, and these M2M terminals will use the CCCH at the same time as the H2H terminals in the network, which will have a great impact on the communication between the H2H terminals and the network side.

Contents of the invention

Embodiments of the present invention provide a communication method and device on a common control channel, which are used to control various types of terminals to communicate with network-side equipment according to the information contained in the information sent by the network-side equipment indicating that their own type uses the allocated CCCH.

On the one hand, an embodiment of the present invention provides a communication method on a common control channel, including:

The first terminal receives a message sent by the network side device, the message includes information indicating that the first terminal uses the allocated CCCH; the type of the first terminal is the first type, and the allocation to the first terminal The CCCH used is dedicated to terminals of the first type;

The first terminal communicates with the network side device on the allocated CCCH according to the information.

On the other hand, an embodiment of the present invention also provides a communication method on a common control channel, including:

The network side device allocates a dedicated CCCH to the first terminal according to the type of the terminal;

sending a message to a first terminal belonging to the first type, where the message includes information indicating that the first terminal uses the allocated CCCH, and the CCCH allocated to the first terminal is dedicated to the terminal of the first type, making the terminal of the first type communicate with the network side device on the allocated CCCH according to the information.

In another aspect, an embodiment of the present invention also provides a terminal, including:

The receiving module is configured to receive a message sent by the network side device, the message includes information indicating that the terminal uses the allocated CCCH; the type of the terminal is the first type, and the CCCH allocated to the terminal is used by Dedicated to terminals of the first type;

A communication module, configured to communicate with the network side device on the assigned CCCH according to the information.

In yet another aspect, an embodiment of the present invention also provides a network side device, including:

An allocation module, configured to allocate a dedicated CCCH to the first terminal according to the type of the terminal;

A sending module, configured to send a message to a first terminal of the first type, where the message includes information indicating that the first terminal uses a CCCH allocated to the first terminal, and the CCCH allocated to the first terminal is used by the first terminal. is dedicated to terminals of the first type, so that the terminal of the first type communicates with the network-side device on the allocated CCCH according to the information.

In the communication method and device on the common control channel of the embodiment of the present invention, the network side device sends a message to the terminal, and the message carries information instructing the terminal to use the dedicated CCCH allocated to it, and the terminal communicates with the allocated CCCH according to the information Network-side device communication can effectively control various types of terminals to use their type-specific CCCHs when communicating with the network side, which plays a good role in controlling terminal access to the network.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

FIG. 1 is a flowchart of a communication method on a common control channel provided by an embodiment of the present invention;

FIG. 2 is a flowchart of a communication method on a common control channel provided by another embodiment of the present invention;

FIG. 3 is a flowchart of a communication method on a common control channel provided by another embodiment of the present invention;

FIG. 4 is a schematic diagram of a terminal structure provided by an embodiment of the present invention;

Fig. 5 is a schematic structural diagram of a network side device provided by an embodiment of the present invention.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

Fig. 1 is a flowchart of a communication method on a common control channel provided by an embodiment of the present invention, as shown in Fig. 1 , including:

Step 101: the first terminal receives a message sent by the network side device, and the message includes information indicating that the first terminal uses the allocated CCCH;

Wherein, the first terminal generally refers to a terminal, and generally refers to any terminal within the coverage of the network side device. The type of the first terminal is the first type, and the CCCH allocated to the first terminal is dedicated to the first type of terminal. For the first type of terminal, it should be noted that the first type of terminal may be determined according to one or more of terminal applications, priorities, and characteristics. That is, terminals can be classified into different types according to different terminal applications, and/or characteristics, and/or priorities, etc., such as the first type, the second type, etc. in the embodiment of the present invention, and the type The types are not limited to one, two or more types, and the terminal types are distinguished according to actual work needs. Among them, the application of the terminal can include but not limited to smart metering, smart transportation, smart home, smart monitoring, smart community, cloud computing, mobile payment, sensor network, health care, etc. The characteristics of the terminal can include but not limited to group Features, delay sensitivity, low mobility, time control, data service, small data service, terminal initiated service, alarm, monitoring service, location trigger, etc. The priority of the terminal can include but is not limited to high priority, normal priority level, low priority, a certain level of priority, etc.

The network side device may send the above information instructing the terminal to use the allocated CCCH to the first terminal through an air interface message. The air interface message may be a system message (System Information, abbreviated as: SI), a paging message (abbreviated as: Paging) or a cell broadcast (CellBroadcast, abbreviated as: CB).

Step 102: The first terminal communicates with the network side device on the allocated CCCH according to the above information.

The communication between the terminal and the network-side device referred to in step 102 includes many kinds, for example, the terminal listens to the cell broadcast on the allocated CCCH but does not send any data to the network-side device, or there is a communication between the terminal and the network-side device. Data interaction, etc.

The embodiment of the present invention provides a communication method on the CCCH. The network side device sends a message to the terminal. The message carries information instructing the terminal to use the dedicated CCCH allocated to it. The terminal communicates with the network on the allocated CCCH according to the information. The side device communication can effectively control various types of terminals to use their type-specific CCCHs when communicating with the network side, which plays a good role in controlling the terminal's access to the network. For example, the network-side device can allocate C0, C2, and C4 to H2H terminals, and allocate C6 to M2M terminals, so that H2H terminals and M2M terminals can communicate with the network side on their respective dedicated CCCHs without causing mutual congestion.

Fig. 2 is a flowchart of a communication method on a common control channel provided by another embodiment of the present invention. As shown in Fig. 2, the method includes:

Step 201: the base station sends an air interface message on the existing CCCH to terminals within the coverage of its cell, and the air interface message carries indication information for instructing the terminal to use the allocated CCCH;

The terminals within the coverage of the base station can be various types of terminals. For example, the first type can be M2M, the second type can be H2H, and the third type can also include device-to-device (Device to Device, D2D for short), etc. wait.

The air interface message may be a system message, a paging message or a cell broadcast. In this embodiment, an air interface message is taken as a system message as an example for description. Taking the system message SI3 as an example, the system message SI3 includes control channel description (Control Channel Description) information, and the control channel description information can be shown in Table 1 in the prior art:

Table 1

In this embodiment, the indication information is added to the control channel description information, mainly by using the vacant 4th and 5th bits in byte 3 of the control channel description information, as shown in Table 2:

Table 2

The indication information occupies two bits, and the meaning of the information represented can be but not limited to as shown in Table 3:

table 3

It should be noted here that this embodiment only uses the control channel description information of SI3 as an example to illustrate the indication information. In fact, the indication information can be carried in any message and sent to the terminal, and it is not limited to two bits position is limited. Multiple bits may be used to represent the indication information, and the indication information represented by multiple bits may be known to the network side device and the terminal.

Step 202: The terminal reads the system information of the cell, and judges whether the system information carries dedicated CCCH information allocated for its own type (that is, instructs the terminal to use the allocated CCCH information);

If the system information carries the dedicated CCCH information allocated for the type to which it belongs, step 203 is performed.

Step 203: The terminal determines its own CCCH group according to the information of its dedicated CCCH corresponding to its type, and communicates with the network side device on the dedicated CCCH group.

Among them, before the terminal establishes a connection with the network side, the terminal is in an idle state, and the group to which the terminal belongs can be calculated by but not limited to the following formula (1):

CCCH_GROUP(0..BS_CC_CHANS-1)=((IMSI mod 1000)mod(BS_CC_CHANS x N)) div N (1)

In the above formula:

N = number of paging blocks available for a CCCH corresponding to the terminal type

= Number of available paging blocks in a 51TDMA frame multiframe × BS_PA_MFRMS

IMSI = International Mobile Subscriber Identity (International Mobile Subscriber Identity)

mod = modular operation

div = integer division

It should be noted that the IMSI is only one of the identifiers of the terminal itself. Here, only the IMSI is used as an example for illustration. The identifier of the terminal itself can also be one of a group ID (Group ID), an IPv6 or IPv4 address, or Various.

Among them, BS_CC_CHANS in the above formula (1) needs to be defined according to the indication information. Taking the indication information shown in Table 3 as an example, BS_CC_CHANS is shown in Table 4 below:

Table 4

The communication may include, but is not limited to: network access, cell reselection, and the like.

It should be noted here that, for the same network-side device, the system messages can be divided into multiple sets according to the type of the terminal. For example, the BCCH on the dedicated CCCH allocated to H2H terminals transmits system messages for H2H terminals, regardless of M2M terminals. However, the BCCH on the dedicated CCCH allocated to the M2M terminal transmits the system information for the M2M terminal without considering the H2H terminal. In this way, the network side device can send two sets of system messages in the same cell, and the two sets of system messages are independent of each other and do not affect each other. For example, the RACH control parameters in the system message are sent on the BCCH channel for H2H only for H2H terminals, and sent on the BCCH channel for M2M only for M2M terminals. The benefit brought by this is that the existing system for H2H terminals The message modification is very minor and only needs to steer the M2M to the designated dedicated CCCH. Another example is that two sets of system messages can define different CCCH configuration parameters, such as different BS-AG-BLKS-RES or BS-PA-MFRMS, so that the CCCH structures corresponding to different types of terminals are also different, which is convenient for adapting to different types of terminals. need.

What needs to be further explained here for step 203 is that if the terminal reads the information of the dedicated CCCH corresponding to its type in the C0 time slot, and determines the group it is in according to the above method, the terminal will turn to its own type on the corresponding dedicated CCCH, and read the system information on the dedicated CCCH, and communicate with the network according to the system information on the dedicated CCCH. For example, after the second type of terminal receives the system message (including the SI for the first type of terminal and the guidance message for the second type of terminal to use the second type of CCCH) on C0, it enters the dedicated CCCH of the second type of terminal, and restarts Read the SI on the dedicated CCCH, and communicate with the network according to the re-read SI on the dedicated CCCH. Furthermore, when the configuration of different types of CCCHs changes, the network side equipment will also notify the second type of terminals, and the second type of terminals will reselect the dedicated CCCHs of this type according to the latest notification.

The embodiment of the present invention provides a communication method on the CCCH. The network side device sends a message to the terminal. The message carries information instructing the terminal to use the dedicated CCCH allocated to it. The terminal communicates with the network on the allocated CCCH according to the information. The side device communication can effectively control various types of terminals to use their type-specific CCCHs when communicating with the network side, which plays a good role in controlling the terminal's access to the network.

Fig. 3 is a flowchart of a communication method on a common control channel provided by another embodiment of the present invention. As shown in Fig. 3, the method includes:

Step 301: the base station sends an air interface message on the CCCH to terminals within the coverage of its cell, the air interface message carries indication information for instructing the terminal to use the allocated CCCH;

Wherein, the CCCH includes the existing CCCH, such as on one or more of the carrier frequencies C0, C2, C4 and C6, and also includes the newly added CCCH, such as one of the time slots C1, C3, C5 and C7 or more. The base station sends air interface messages on different CCCHs for different types of terminals, and different types of terminals receive different CCCHs for receiving air interface messages. For example, CCCHs on one or more of C0, C2, C4 and C6 can send air interface messages to H2H terminals, and CCCHs on one or more of C1, C3, C5 and C7 can send air interface messages to M2M terminals .

Step 302: The terminal reads the system information of the cell, and judges whether the system information carries dedicated CCCH information allocated for its own type (that is, instructs the terminal to use the allocated CCCH information);

If the system information carries the dedicated CCCH information allocated for the type to which it belongs, step 303 is performed.

Step 303: The terminal determines its own CCCH group according to the information allocated to its own dedicated CCCH corresponding to its type, and communicates with the network side device on the dedicated CCCH group.

Wherein, different from the above-mentioned embodiment, in this embodiment, different types of terminals receive the above-mentioned indication information on different channels, and the terminal can use the CCCH that receives the above-mentioned indication information to communicate with the network side equipment.

The grouping method can be similar to the method in step 203, which is calculated according to C1, C3, C5 and C7. The M2M dedicated CCCH configuration can be shown in Table 5:

table 5

It should be noted here that, for the same network-side device, the system messages can be divided into multiple sets according to the type of the terminal. For example, the BCCH on the dedicated CCCH allocated to H2H terminals transmits system messages for H2H terminals, regardless of M2M terminals. However, the BCCH on the dedicated CCCH allocated to the M2M terminal transmits the system information for the M2M terminal without considering the H2H terminal. In this way, the same network-side device sends two sets of system messages, and the two sets of system messages are independent of each other and do not affect each other. For example, the RACH control parameters in the system message are sent on the BCCH channel for H2H only for H2H terminals, and sent on the BCCH channel for M2M only for M2M terminals. The benefit brought by this is that the existing system for H2H terminals The modification of the message is very small, and it only needs to guide the M2M terminal to the designated dedicated CCCH.

The embodiment of the present invention provides a communication method on the CCCH. The network side device sends a message to the terminal. The message carries information instructing the terminal to use the dedicated CCCH allocated to it. The terminal communicates with the network on the allocated CCCH according to the information. The side device communication can effectively control various types of terminals to use their type-specific CCCHs when communicating with the network side, which plays a good role in controlling the terminal's access to the network.

Fig. 4 is a schematic structural diagram of a terminal provided by an embodiment of the present invention. The terminal is the specific execution subject of the above-mentioned method embodiment. Therefore, the content of the method embodiment is combined with this embodiment by reference, and details are not repeated here. As shown in FIG. 4 , the terminal includes: a receiving module 401 and a communication module 402 . Wherein, the receiving module 401 is used to receive a message sent by the network side equipment, the message includes information indicating that the terminal uses the allocated CCCH; the type of the terminal is the first type, and the CCCH allocated to the terminal is used by the first type Exclusively for the terminal. The communication module 402 is configured to communicate with the network side device on the allocated CCCH according to the above information.

In one embodiment, the communication module 402 is configured to: select one of the CCCHs to communicate with the network side device according to the identifier of the terminal, where the identifier can be a group ID (Group ID), an IP address, or an IMSI, etc. for uniqueness The symbol that identifies this terminal.

Wherein, the terminal of the first type may be determined according to one or more of terminal applications, priorities, and characteristics.

Figure 5 is a schematic structural diagram of a network-side device provided by an embodiment of the present invention. The network-side device is the specific execution subject of the above-mentioned method embodiment. Therefore, the content of the method embodiment is combined with this embodiment by reference, and is not described here. Do repeat. As shown in FIG. 5 , the network side device includes: an allocation module 501 and a sending module 502 . Wherein, the allocation module 501 is configured to allocate a dedicated CCCH to the first terminal according to the type of the terminal. The sending module 502 is configured to send a message to a first terminal of the first type, where the message includes information indicating that the first terminal uses a CCCH allocated to the first terminal, and the CCCH allocated to the first terminal is dedicated to a terminal of the first type, So that the terminal of the first type communicates with the network side device on the assigned CCCH according to the information.

Further, the sending module 502 may also be configured to: send a message to a second terminal of the second type, and the message sent to the second terminal is used to indicate that the second terminal has other CCCHs than the CCCH dedicated to the first terminal communicate with network-side devices.

Wherein, the network side device may be a base station, or a base station controller.

An embodiment of the present invention provides a communication device on the CCCH. The network side device sends a message to the terminal. The message carries information instructing the terminal to use the dedicated CCCH allocated to it. The terminal communicates with the network on the allocated CCCH according to the information. The side device communication can effectively control various types of terminals to use their type-specific CCCHs when communicating with the network side, which plays a good role in controlling the terminal's access to the network.

Those of ordinary skill in the art can understand that all or part of the steps for realizing the above-mentioned method embodiments can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium. When the program is executed, the It includes the steps of the above method embodiments; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk and other various media that can store program codes.

The device embodiments described above are only illustrative, and the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place , or can also be distributed to at least two network elements. Part or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. It can be understood and implemented by those skilled in the art without any creative effort.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims (17)

1. A communication method on a common control channel, comprising: The first terminal receives a message sent by the network side device, the message includes information indicating that the first terminal uses the allocated common control channel CCCH; the type of the first terminal is the first type, and the allocated to the The CCCH used by the first terminal is dedicated to the first type of terminal; The first terminal communicates with the network side device on the allocated CCCH according to the information. 2. The communication method according to claim 1, wherein the message is a system message, a paging message or a cell broadcast. 3. The communication method according to claim 2, wherein when the message is a system message 3, the information indicating that the first terminal uses the allocated CCCH is carried in the control channel of the system message 3 in the description information. 4. The communication method according to claim 1, wherein the terminal of the first type is determined according to one or more of terminal applications, priorities, and characteristics. 5. The communication method according to any one of claims 1 to 4, characterized in that, the CCCHs allocated to the first type of terminals include one or more of C0, C2, C4, and C6 time slots CCCH, or, the CCCH allocated to the first type of terminal includes one or more than two CCCHs on C1, C3, C5, and C7 time slots. 6. The communication method according to any one of claims 1 to 4, wherein the communication between the first terminal and the network-side device on the assigned CCCH according to the information is specifically: The first terminal selects one of the CCCHs to communicate with the network-side device according to its identifier, where the identifier includes a group ID, an IP address, or an International Mobile Subscriber Identity (IMSI). 7. A communication method on a public control channel, comprising: The network side device allocates a dedicated common control channel CCCH to the first terminal according to the type of the terminal; sending a message to a first terminal belonging to the first type, where the message includes information indicating that the first terminal uses the allocated CCCH, and the CCCH allocated to the first terminal is dedicated to the terminal of the first type, making the terminal of the first type communicate with the network side device on the allocated CCCH according to the information. 8. The communication method according to claim 7, wherein the message is a system message, a paging message or a cell broadcast; and/or, the first type of terminal is based on the application, priority and characteristics of the terminal One or more of the identified. 9. The communication method according to claim 8, wherein when the message is a system message 3, the information indicating that the first terminal uses the allocated CCCH is carried in the control channel of the system message 3 in the description information. 10. The communication method according to claim 7, further comprising: sending a message to a second terminal belonging to the second type, the message sent to the second terminal is used to indicate that the second terminal is assigned to the second terminal A terminal communicates with the network-side device on CCCHs other than the CCCH dedicated to the terminal. 11. The communication method according to claim 10, wherein the parameter configuration in the message sent to the first terminal is different from that in the message sent to the second terminal. 12. A terminal, characterized in that, comprising: The receiving module is configured to receive a message sent by the network side device, the message includes information indicating that the terminal uses the allocated common control channel CCCH; the type of the terminal is the first type, and the allocation is for the terminal to use The CCCH is dedicated to the terminal of the first type; A communication module, configured to communicate with the network side device on the assigned CCCH according to the information. 13. The terminal according to claim 12, wherein the communication module is configured to: select one of the CCCHs to communicate with the network-side device according to an identifier of the terminal, the identifier including a group ID and an IP address , or the International Mobile Subscriber Identity IMSI. 14. The terminal according to claim 12 or 13, wherein the terminal of the first type is determined according to one or more of application, priority and characteristics of the terminal. 15. A network side device, characterized in that it comprises: An allocation module, configured to allocate a dedicated common control channel CCCH to the first terminal according to the type of the terminal; A sending module, configured to send a message to a first terminal of the first type, where the message includes information indicating that the first terminal uses a CCCH allocated to the first terminal, and the CCCH allocated to the first terminal is used by the first terminal. is dedicated to terminals of the first type, so that the terminal of the first type communicates with the network-side device on the allocated CCCH according to the information. 16. The network side device according to claim 15, wherein the sending module is further configured to: send a message to a second terminal belonging to the second type, and the message sent to the second terminal is used to indicate that the first The second terminal communicates with the network side device on a CCCH other than the dedicated CCCH allocated to the first terminal. 17. The network-side device according to claim 15 or 16, wherein the network-side device is a base station or a base station controller.

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