WO2012110008A1

WO2012110008A1 - Communication method and device for common control channel

Info

Publication number: WO2012110008A1
Application number: PCT/CN2012/071340
Authority: WO
Inventors: 舒兵
Original assignee: 华为技术有限公司
Priority date: 2011-02-18
Filing date: 2012-02-20
Publication date: 2012-08-23
Also published as: CN102647801A; ZA201306953B; RU2540892C1; BR112013021015A2

Abstract

An embodiment of the present invention provides a communication method and device for a common control channel (CCCH). The method comprises: a first terminal receives a message from a network side device, the message comprising information instructing the first terminal to use an assigned CCCH; the first terminal is of a first type and the CCCH assigned to the first terminal is used specifically by terminals of the first type; the first terminal communicates with the network side device on the assigned CCCH according to the information received. The terminal comprises a receiving module and a communication module. The network side device comprises: an allocation module and a transmission module. The solution as put forth in embodiments of the present invention allows for the control of various types of terminals using various CCCHs.

Description

Communication method and device on common control channel

This application claims priority to Chinese Patent Application No. 201110043883.0, entitled "Communication Method and Apparatus on Common Control Channels", filed on February 18, 2011, the entire contents of which are incorporated herein by reference. In the application. 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), if a terminal needs to establish communication with the network, it needs an uplink random access channel through the Common Control Channel (CCCH). The Random Access Channel, referred to as: RACH, sends a message to the network to apply for a signaling channel to the system. The network side device determines the assigned channel type according to the channel request. This certificate sent on the RACH is called Channel Request or EGPRS Packet Chanel Request (CR). After receiving the CR sent by the terminal, the network side device sends an immediate assignment message on the downlink grant channel (Access Grant Channel, AGCH) of the CCCH. After receiving the immediate assignment message, the terminal indicates that the terminal has successfully initiated the connection. In, the terminal establishes a connection with the network side device in the subsequent process, and performs signaling or data transmission.

With the development of network technology, there are not only Human to Human (H2H) terminals, but also a large number of Machine to Machine (M2M) terminals. In addition to the interconnection, the M2M terminal may also be associated with a Machine Type Communication (MTC) server. A large number of M2M terminals will bring some new problems. For example, in the event of a power outage or earthquake in a certain area, these M2M terminals need to report such events to the machine type communication server, and the connection to the network side is activated at the same time. This At this time, the network may suddenly encounter a large number of terminals connected to the terminal, and these terminals may use the CCCH simultaneously with the terminal of the type 2 in the network, which has a great influence on the communication between the terminal of the H2H type and the network side. Summary of the invention

An embodiment of the present invention provides a communication method and device on a common control channel, which is used to control various types of terminals to use the allocated type according to the indications included in the information sent by the network side device.

The CCCH information communicates with the network side device.

In one aspect, the embodiment of the present invention provides a communication method on a common control channel, including: receiving, by a first terminal, a message sent by a network side device, where the message includes information indicating that the first terminal uses the allocated CCCH; The type of the first terminal is a first type, and the CCCH allocated to the first terminal is dedicated by the terminal 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, the embodiment of the present invention further 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 the first terminal that belongs 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 by the terminal 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 another aspect, the embodiment of the present invention further provides a terminal, including:

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

And a communication module, configured to communicate with the network side device on the allocated CCCH according to the information. In another aspect, the embodiment of the present invention further provides a network side device, including:

An allocating 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 the first terminal that belongs 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 used by the first The terminal of the type is dedicated such that the terminal of the first type communicates with the network side device on the assigned CCCH according to the information.

The communication method and device on the common control channel of the embodiment of the present invention sends a message to the terminal through the network side device, where the message carries information indicating that the terminal uses the CCCH allocated to the dedicated terminal, and the terminal uses the information on the allocated CCCH according to the information. The network side device communication can effectively control the different types of terminals to use the CCCH of the type when communicating with the network side, which plays a good role in controlling the terminal accessing the network. DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description of the drawings used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work.

1 is a flowchart of a communication method on a common control channel according to an embodiment of the present invention; FIG. 2 is a flowchart of a communication method on a common control channel according to another embodiment of the present invention; FIG. 3 is still another embodiment of the present invention. A flow chart of a communication method on a common control channel is provided; FIG. 4 is a schematic structural diagram of a terminal according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a network side device according to an embodiment of the present invention. detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is a partial embodiment of the invention, and not all of the embodiments. Based on the embodiments of the present invention, those of ordinary skill in the art obtain the following without creative efforts. All other embodiments obtained are within the scope of the invention.

FIG. 1 is a flowchart of a communication method on a common control channel according to an embodiment of the present invention. As shown in FIG. 1, the method includes:

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

The first terminal is a generic term of the terminal, and generally refers to any terminal in 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 by the terminal of the first type. It should be noted that for the first type of terminal, the first type of terminal may be determined according to one or more of the application, priority, and characteristics of the terminal. That is, the terminal can be classified into different types, such as the first type, the second type, and the like in the embodiment of the present invention, depending on the difference in the terminal application, and/or the difference in the characteristics, and/or the priority. The types are not limited to one type, two types or multiple types, and the terminal types are distinguished according to actual work needs. The application of the terminal can be, but is not limited to, including a smart meter, intelligent transportation, smart home, intelligent monitoring, smart community, cloud computing, mobile payment, sensor network, health care, etc., and the characteristics of the terminal can be, but are not limited to, including groups. Characteristics, 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 be, but is not limited to, including high priority and normal priority. Level, low priority, priority of a level, etc.

The network side device may send the information indicating the terminal using the allocated CCCH to the first terminal by using an air interface message. The air interface message may be System Information (S: SI), Paging Message (Paging Message, or Paging) or Cell Broadcast (CB).

Step 102: The first terminal communicates with the network side device on the allocated CCCH according to the foregoing information. The terminal in the step 102 communicates with the network side device, 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 exists between the terminal and the network side device. Data interaction, etc.

The embodiment of the invention provides a communication method on the CCCH, which is sent by the network side device. The information is carried to the terminal, and the message carries information indicating that the terminal uses the dedicated CCCH. The terminal communicates with the network side device on the allocated CCCH according to the information, and can effectively control different types of terminals to communicate with the network side. When using the CCCH of its type, it plays a good role in controlling the terminal access to the network. For example, the network side device may allocate C0, C2, and C4 for the H2H terminal, and allocate C6 for the M2M terminal, so that the H2H terminal and the M2M terminal can communicate with the network side on the respective dedicated CCCHs without causing mutual congestion.

FIG. 2 is a flowchart of a communication method on a common control channel according to another embodiment of the present invention. As shown in FIG. 2, the method includes:

Step 201: The base station sends an air interface message to the terminal in the coverage of the cell on the existing CCCH. The air interface message carries the indication information, which is used to indicate that the terminal uses the allocated CCCH. The terminal in the coverage of the base station may be multiple. Different types of terminals, for example, the first type may be M2M, the second type may be H2H, and the third type may be Device to Device (D2D for short).

The air interface message can be a system message, a paging message, or a cell broadcast. This embodiment uses an air interface message 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 information, which can be as shown in Table 1 in the prior art:

Table 1

8 bits 7 bits 6 bits 5 bits 4 bits 3 bits 2 bits 1 bit Byte 2

Byte 3

Byte 4

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

8 bits 7 bits 6 bits 5 bits 4 bits 3 bits 2 bits 1 bit Byte 2

Byte 3

Byte 4

The indication information occupies two bit positions, and the meaning of the information represented may be, but is not limited to, Table 3

It should be noted that, in this embodiment, only the control channel description information of the SI3 is used as an example to describe the indication information. In fact, the indication information may be carried on any message and sent to the terminal, and is not limited to passing two bits. The bit is limited. The indication information may be represented by a plurality of bit bits, and the indication information represented by using a plurality of bit bits may be known to the network side device and the terminal.

Step 202: The terminal reads the system message of the cell, and determines whether the system message carries the dedicated CCCH information allocated for the type to which it belongs (that is, indicates that the terminal uses the allocated CCCH information);

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

Step 203: The terminal allocates to the CCCH dedicated to itself according to the type to which the terminal belongs. The information determines its own CCCH packet and communicates with the network side device on the packet of the dedicated CCCH. The terminal is in an idle state before the terminal establishes a connection with the network side, and the group to which the terminal belongs may be, but is not limited to, calculated by 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 available paging blocks for a CCCH corresponding to the terminal type

= number of available paging blocks in a 51TDMA frame multiframe xBS— PA— MFRMS

IMSI = International Mobile Subscriber Identity mod = Modulo Operation

Div = integer division

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

Wherein, 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 as shown in Table 4 below:

Table 4

Communication may be, but is not limited to, including: access network, cell reselection, and the like.

It should be noted here that for the same network side device, the system message can be based on the terminal. The types are divided into multiple sets. For example, the BCCH on the dedicated CCCH assigned to the H2H terminal transmits system messages for the H2H terminal, regardless of the M2M terminal. The BCCH on the dedicated CCCH allocated to the M2M terminal transmits system messages for the M2M terminal, regardless of 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 and mutually influential. For example, the RACH control parameter in the system message is transmitted only for the H2H terminal in the BCCH channel for H2H, and only for the M2M terminal on the BCCH channel for M2M, which brings the advantage to the existing system for the H2H terminal. The message modification is very small, just need to boot the M2M to the specified dedicated CCCH. For example, 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.

Further, in step 203, if the terminal reads the information of the dedicated CCCH corresponding to the type to which the UE belongs, and determines the packet to be in accordance with the foregoing method, the terminal will switch to the type to which the terminal belongs. Corresponding on the dedicated CCCH, and reading the system message on the dedicated CCCH, and communicating with the network according to the system message on the dedicated CCCH. For example, after the system message received by the second type terminal on the CO (including the SI for the first type of terminal and the second type of terminal using the second type CCCH), the terminal enters the second type of terminal-specific CCCH, The SI on the dedicated CCCH is read and communicated with the network based on the SI on the reread dedicated CCCH. Further, when the CCCH configuration changes, the network side device also notifies the second type of terminal, and the second type terminal reselects the CCCH of the type according to the latest notification.

The embodiment of the present invention provides a communication method on the CCCH, where the network side device sends a message to the terminal, where the message carries information indicating that the terminal uses the CCCH allocated to the dedicated terminal, and the terminal uses the network on the allocated CCCH and the network according to the information. The side device communication can effectively control the different types of terminals to use the CCCH of the type when communicating with the network side, which plays a good role in controlling the terminal accessing the network. FIG. 3 is a flowchart of a communication method on a common control channel according to another embodiment of the present invention. As shown in FIG. 3, the method includes:

Step 301: The base station sends an air interface message to the terminal in the coverage of the cell on the CCCH, where the air interface message carries the indication information, and is used to indicate that the terminal uses the allocated CCCH.

The CCCH includes an existing CCCH, such as one or more of the carrier frequencies CO, C2, C4, and C6, and includes a new CCCH, such as one of time slots CI, C3, C5, and C7. Or more than one. The base station sends air interface messages on different CCCHs for different types of terminals. The CCCHs of different types of terminals receiving air interface messages are different. For example, an air interface message may be sent to the H2H terminal on the CCCH on one or more of CO, C2, C4, and C6, and an air interface message is sent to the M2M terminal in the CCCH on one or more of CI, C3, C5, and C7. .

Step 302: The terminal reads the system message of the cell, and determines whether the system message carries the dedicated CCCH information allocated for the type to which it belongs (that is, instructs the terminal to use the allocated CCCH information);

If the system message 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 packet according to the information allocated to its own dedicated CCCH corresponding to the type to which it belongs, and communicates with the network side device on the packet of the dedicated CCCH.

The difference from the foregoing embodiment is that, in this embodiment, the channels for receiving the indication information by different types of terminals are different, and the terminal may perform communication with the network side device by using the CCCH that receives the indication information.

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

The types are divided into multiple sets. For example, the BCCH on the dedicated CCCH assigned to the H2H terminal transmits system messages for the H2H terminal, regardless of the M2M terminal. The BCCH on the dedicated CCCH allocated to the M2M terminal transmits system messages for the M2M terminal, regardless of 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 and do not affect each other. For example, the RACH control parameter in the system message is transmitted only for the H2H terminal in the BCCH channel for H2H, and only for the M2M terminal on the BCCH channel for M2M, which brings the advantage to the existing system for the H2H terminal. The message modification is very small, just need to boot the M2M terminal to the specified dedicated CCCH.

The embodiment of the present invention provides a communication method on the CCCH, where the network side device sends a message to the terminal, where the message carries information indicating that the terminal uses the CCCH allocated to the dedicated terminal, and the terminal uses the network on the allocated CCCH and the network according to the information. The side device communication can effectively control the different types of terminals to use the CCCH of the type when communicating with the network side, which plays a good role in controlling the terminal accessing the network.

FIG. 4 is a schematic structural diagram of a terminal according to an embodiment of the present invention. The terminal is a specific execution subject of the foregoing method embodiment. Therefore, the content of the method embodiment is combined with the embodiment in reference to the embodiment, and details are not described herein. As shown in FIG. 4, the terminal includes: a receiving module 401 and a communication module 402. The receiving module 401 is configured to receive a message sent by the network side device, where the message includes information indicating that the terminal uses the allocated CCCH; the type of the terminal is a first type, and the CCCH allocated to the terminal is used by the first type. Terminal dedicated. The communication module 402 is configured to allocate according to the above information. Communicate with the network side device on the CCCH.

In an 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 may be a group ID (Group ID), an IP address, or an IMSI, etc. A symbol that identifies the terminal.

The terminal of the first type may be determined according to one or more of an application, a priority, and a feature of the terminal.

FIG. 5 is a schematic structural diagram of a network side device according to an embodiment of the present invention. The network side device is a specific execution body of the foregoing method embodiment. Therefore, the content of the method embodiment is combined with the embodiment in a reference manner. Make a comment. As shown in FIG. 5, the network side device includes: an allocation module 501 and a sending module 502. The allocating 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 the first terminal that belongs 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 used by the terminal of the first type. The first type of terminal communicates with the network side device on the allocated CCCH according to the information.

Further, the sending module 502 is further configured to: send a message to the second terminal of the second type, where the message sent to the second terminal is used to indicate that the second terminal is other than the CCCH dedicated to the first terminal. Communicate with the network side device.

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 a CCCH, where a message is sent to a terminal by using a network side device, where the message carries information indicating that the terminal uses the CCCH allocated to the dedicated terminal, and the terminal uses the network on the allocated CCCH and the network according to the information. The side device communication can effectively control the different types of terminals to use the CCCH of the type when communicating with the network side, which plays a good role in controlling the terminal accessing the network.

A person skilled in the art can understand that all or part of the steps of implementing the above method embodiments may be completed by using hardware related to program instructions, and the foregoing program may be stored in a computer readable storage medium, and the program is executed when executed. Including the steps of the above method embodiments; The storage medium includes: ROM, RAM, disk or optical disk, etc. The device embodiments described above can store program codes. The device embodiments described above are merely illustrative, and the units described as separate components may or may not be physically Separately, the components displayed as the unit may or may not be physical units, that is, may be located in one place, or may be distributed to at least two network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment. Those of ordinary skill in the art can understand and implement without deliberate labor.

It should be noted that the above embodiments are only for explaining the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: The technical solutions described in the foregoing embodiments are modified, or some of the technical features are equivalently replaced. The modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

Rights request

A communication method on a common control channel, comprising:

Receiving, by the first terminal, a message sent by the network side device, where the message includes information indicating that the first terminal uses the allocated common control channel CCCH; the type of the first terminal is a first type, and the The CCCH used by the first terminal is dedicated by 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.

The communication method according to claim 2, wherein when the message is system message 3, the information indicating that the first terminal uses the allocated CCCH is carried in a control channel of the system message 3. In the description information.

The communication method according to claim 1, wherein the terminal of the first type is determined according to one or more of an application, a priority, and a characteristic of the terminal.

The communication method according to any one of claims 1 to 4, wherein the CCCH allocated to the terminal of the first type includes one or more of CO, C2, C4, and C6 time slots. CCCH, or the CCCH allocated to the terminal of the first type includes one or more CCCHs on the CI, C3, C5, C7 time slots.

The communication method according to any one of claims 1 to 4, wherein the first terminal communicates with the network side device on the allocated CCCH according to the information:

The first terminal selects one of the CCCHs to communicate with the network side device according to its own identifier, and the identifier includes a group ID, an IP address, or an international mobile subscriber identity IMSI.

7. A communication method on a common 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 the first terminal belonging to the first type, where the message includes the indication of the first terminal Using the information of the allocated CCCH, the CCCH allocated to the first terminal is dedicated by the terminal of the first type, so that the terminal of the first type is connected to the network on the allocated CCCH according to the information. Side device communication.

The communication method according to claim 7, wherein the message is a system message, a paging message or a cell broadcast; and/or, the terminal of the first type is based on an application, a priority, and a characteristic of the terminal. One or more of the determinations.

The communication method according to claim 8, wherein when the message is system message 3, the information indicating that the first terminal uses the allocated CCCH is carried in a control channel of the system message 3. In the description information.

The communication method according to claim 7, further comprising: sending a message to the second terminal belonging to the second type, and the message sent to the second terminal is used to indicate that the second terminal is assigned to the second terminal. Communication with the network side device is performed on other CCCHs other than the terminal-specific CCCH.

The communication method according to claim 10, wherein the message sent to the first terminal is different from the parameter configuration in the message sent to the second terminal.

12. A terminal, comprising:

a receiving module, configured to receive a message sent by the network side device, where the message includes information indicating that the terminal uses the allocated common control channel CCCH; the type of the terminal is a first type, and the terminal is allocated to the terminal. CCCH is dedicated to the first type of terminal;

And a communication module, configured to communicate with the network side device on the allocated CCCH according to the information.

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, where the identifier includes a group ID and an IP address. , or International Mobile Subscriber Identity IMSI.

The terminal according to claim 12 or 13, wherein the terminal of the first type is determined according to one or more of an application, a priority, and a characteristic of the terminal.

15. A network side device, comprising: An allocation module, configured to allocate a dedicated common control channel to the first terminal according to the type of the terminal

CCCH;

a sending module, configured to send a message to the first terminal that belongs 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 used by the first The terminal of the type is dedicated such that the terminal of the first type communicates with the network side device on the assigned CCCH according to the information.

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 send a message to the second terminal to indicate the The two terminals communicate with the network side device on other CCCHs other than the CCCH dedicated to the first terminal.

The network side device according to claim 15 or 16, wherein the network side device is a base station or a base station controller.