WO2011050669A1 - Procédé et dispositif pour la gestion de ressources dans la communication entre machines - Google Patents

Procédé et dispositif pour la gestion de ressources dans la communication entre machines Download PDF

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Publication number
WO2011050669A1
WO2011050669A1 PCT/CN2010/077196 CN2010077196W WO2011050669A1 WO 2011050669 A1 WO2011050669 A1 WO 2011050669A1 CN 2010077196 W CN2010077196 W CN 2010077196W WO 2011050669 A1 WO2011050669 A1 WO 2011050669A1
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WIPO (PCT)
Prior art keywords
terminal
dedicated channel
service
service dedicated
channel
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Application number
PCT/CN2010/077196
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English (en)
Chinese (zh)
Inventor
秦钧
邓永锋
赵旸
舒兵
Original Assignee
华为技术有限公司
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to BR112012010175-7A priority Critical patent/BR112012010175B1/pt
Publication of WO2011050669A1 publication Critical patent/WO2011050669A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/18—Interfaces between hierarchically similar devices between terminal devices

Definitions

  • the present invention relates to the field of wireless communication technologies, and in particular, to a resource management method and apparatus for M2M (machine to machine) communication.
  • M2M machine to machine
  • M2M communication refers to the transfer of data from one terminal to another, that is, the dialogue between the machine and the machine.
  • installing a module that can monitor the operating parameters of the distribution network in the power equipment, real-time monitoring, control, management and maintenance of the power distribution system through the module installing a module that can collect information on the working condition of the oil well in the petroleum equipment, The module remotely adjusts and controls the oil well equipment, timely and accurately understands the working condition of the oil well equipment; assembles and collects the vehicle information terminal, the remote monitoring system, etc. in the automobile, monitors the running state of the vehicle through the terminal, etc.;
  • For M2M terminals, and the process of transmitting data by these M2M terminals is an M2M communication process.
  • the communication of the M2M service can adopt the same radio resource management and data transmission method as the existing H2H (human to human) communication, for example, in the GERAN (GSM/EDGE Radio Access Network) network through the PS domain (data domain)
  • the channel or the CS domain (circuit bearer domain) channel transmits the data of the M2M service
  • the network side allocates the radio frame to the M2M terminal through the uplink scheduling
  • the M2M terminal transmits the data in the allocated radio frame.
  • Embodiments of the present invention provide a resource management method and apparatus for M2M communication.
  • a resource management method for M2M communication including:
  • a resource management device for M2M communication comprising:
  • An allocating unit configured to allocate an M2M service dedicated channel to one or more M2M terminals, where the one or more M2M terminals are M2M terminals sharing the M2M service dedicated channel
  • a sending unit configured to send the M2M service dedicated channel Access information to an M2M terminal sharing the dedicated channel of the M2M service
  • a receiving unit configured to receive data sent by the M2M terminal sharing the M2M service dedicated channel through the M2M service dedicated channel.
  • a resource management method for M2M communication including:
  • a resource management device for M2M communication comprising:
  • a receiving unit configured to receive access information of an M2M service dedicated channel, where the M2M service dedicated channel is shared by one or more M2M terminals;
  • a sending unit configured to access the M2M service dedicated channel according to the M2M service dedicated channel access information, and send data by using the M2M service dedicated channel.
  • a resource management method for M2M communication including:
  • An M2M terminal receives the frame indication information, where the frame indication information indicates that the M2M terminal in the M2M terminal group where the M2M terminal is located corresponds to a frame in the channel that initiates the access request, and the M2M terminal group includes at least one M2M terminal. ;
  • the one terminal initiates an access request in a frame indicated by the frame indication information.
  • a resource management device for M2M communication comprising:
  • a receiving unit configured to receive frame indication information, where the frame indication information indicates a frame corresponding to an M2M terminal in an M2M terminal group in which the M2M terminal is located, and the M2M terminal group includes at least one M2M terminal;
  • a sending unit configured to initiate an access request in a frame indicated by the frame indication information.
  • a resource management method for M2M communication including:
  • the M2M terminal includes at least two groups of M2M terminals, at least one frame is allocated to each group of M2M terminals in the channel that initiates the access request;
  • Each group of M2M terminals is instructed to initiate an access request in the allocated frame.
  • the resource management method and device for M2M communication provided by the embodiment of the present invention, because the M2M service dedicated channel is allocated for the M2M service, and the M2M service communication is performed through the M2M service dedicated channel, so that other channels in the network are It can be used for existing H2H communication to ensure normal H2H communication. Even if a large number of M2M services appear at the same time, it will not preempt other non-M2M service dedicated channels, and H2H communication can be performed through other channels to ensure H2H. Communication is proceeding normally.
  • the M2M service uses a dedicated channel for data transmission, it facilitates the operator to separately manage the M2M service and the H2H service.
  • FIG. 1 is a flowchart of a method for managing an M2M communication resource according to Embodiment 1 of the present invention
  • FIG. 2 is a block diagram of an M2M communication resource management apparatus according to Embodiment 1 of the present invention
  • FIG. 3 is a flowchart of another M2M communication resource management method according to Embodiment 1 of the present invention
  • FIG. 4 is a block diagram of another M2M communication resource management apparatus according to Embodiment 1 of the present invention
  • FIG. 5b is a block diagram of another M2M communication resource management apparatus according to Embodiment 1 of the present invention
  • FIG. 5c is a flowchart of another M2M communication resource management method according to Embodiment 1 of the present invention
  • FIG. 7 is a flowchart of a method for managing an M2M communication resource according to Embodiment 3 of the present invention
  • FIG. 8 is a flowchart of a method for managing an M2M communication resource according to Embodiment 4 of the present invention
  • Figure 9 is a structural diagram of frame allocation in an embodiment of the present invention.
  • FIG. 10 is a structural diagram of another frame allocation according to an embodiment of the present invention.
  • FIG. 11 is a structural diagram of a third frame allocation in an embodiment of the present invention.
  • FIG. 12 is a flowchart of a method for managing an M2M communication resource according to Embodiment 5 of the present invention
  • FIG. 13 is a block diagram of an M2M communication resource management apparatus according to Embodiment 6 of the present invention.
  • FIG. 14 is a schematic diagram of an M2M communication resource management system according to Embodiment 6 of the present invention.
  • FIG. 15 is a block diagram of an M2M communication resource management apparatus according to Embodiment 7 of the present invention.
  • the application of the M2M service requires large-scale deployment of M2M terminals in a certain area, and since most M2M services have the characteristics of small data volume, scattered data transmission, frequent data transmission times, and various service types, a large number of M2M terminals simultaneously send access requests.
  • the access request is prone to conflicts, which increases the impact on the GERAN network; and once a large number of M2M services occupy network resources, the existing H2H communication cannot be performed normally.
  • the CS domain channel of the GERAN is an exclusive service channel, and can only be used by one user at a time. Once the M2M service is initiated, the CS domain channel will occupy more or all of the CS domain channels, which will cause the existing H2H communication to fail.
  • the CS domain channel is frequently allocated and managed, which has a significant impact on the system capacity of the original network.
  • a PS domain channel can only support up to 7 users for simultaneous multiplexing.
  • M2M terminals send data, they will occupy more radio resources, affecting the normal operation of existing H2H communications and affecting system capacity.
  • the embodiment of the present invention discloses an M2M communication resource management method, where the network side generally needs to allocate an M2M service dedicated channel for the M2M service in a cell unit, and is used to share the transmission data by multiple M2M terminals, as shown in FIG. 1 .
  • the method includes:
  • the network side allocates an M2M service dedicated channel to one or more M2M terminals in the cell, where the M2M service dedicated channel can be shared by the one or more M2M terminals, and the M2M terminals share the same M2M service dedicated channel to transmit data.
  • the access information of the M2M service dedicated channel is sent to the M2M terminal sharing the M2M service dedicated channel, so that the M2M terminal can access the M2M service dedicated channel;
  • the M2M terminal may send data through the M2M service dedicated channel, and the network side may receive data sent by the M2M terminal.
  • the embodiment of the present invention further provides a resource management apparatus for M2M communication.
  • the management apparatus includes: an allocating unit 21, a sending unit 22, and a receiving unit 23.
  • the allocating unit 21 is configured to allocate an M2M service dedicated channel to one or more M2Ms.
  • a terminal, the M2M service dedicated channel may be shared by the one or more M2M terminals, and the M2M terminals share the same M2M service dedicated channel transmission data;
  • the sending unit 22 is configured to send the access information of the M2M service dedicated channel.
  • the receiving unit 23 is configured to receive the M2M service dedicated channel, the M2M terminal, and the M2M service dedicated channel. The data sent.
  • the embodiment of the present invention further provides a resource management method for M2M communication.
  • an M2M service dedicated channel is allocated for the M2M service in units of cells.
  • the method includes:
  • the embodiment of the present invention further provides a resource management apparatus for M2M communication.
  • the apparatus includes: a receiving unit 41 and a sending unit 42.
  • the receiving unit 41 is configured to receive access information of an M2M service dedicated channel, so as to be able to access the M2M service dedicated channel by using the access information, where the M2M service dedicated channel is shared by one or more M2M terminals;
  • the transmitting unit 42 is configured to access the M2M service dedicated channel according to the M2M service dedicated channel access information, and send data through the M2M service dedicated channel.
  • the embodiment of the present invention further provides a resource management method for M2M communication, as shown in FIG. 5a.
  • the method includes:
  • an M2M terminal receives the frame indication information, where the frame indication information indicates that the M2M terminal in the M2M terminal group where the M2M terminal is located corresponds to a frame in the channel that initiates the access request, and the M2M terminal group includes at least one The M2M terminal; in general, the channel for initiating the access request is a random access channel or an M2M service dedicated channel, and may also be For other channels that are allowed to initiate an access request.
  • the one terminal initiates an access request in the frame indicated by the frame indication information, so that the M2M terminal can initiate an access request according to the frame corresponding to the packet, so that many M2M terminals can simultaneously initiate an access request.
  • the embodiment of the present invention further provides a resource management apparatus for M2M communication.
  • the apparatus includes: a receiving unit 51 and a sending unit 52.
  • the receiving unit 51 is configured to receive frame indication information, where the frame indication information indicates a frame corresponding to an M2M terminal in an M2M terminal group in which the M2M terminal is located, and the M2M terminal group includes At least one M2M terminal; the sending unit 52 is configured to initiate an access request in the frame indicated by the frame indication information, so that the M2M terminal initiates an access request according to the frame corresponding to the group, to prevent the M2M terminal from simultaneously starting the access request. There is a blocking condition.
  • the embodiment of the present invention further provides a resource management method for M2M communication. As shown in FIG. 5c, the method includes:
  • the embodiment of the present invention may divide the M2M terminal into at least two packets; the grouping manner here includes but is not limited to : grouping according to the service characteristics of the M2M terminal, grouping according to the number of M2M terminals, grouping according to the service urgency of the M2M terminal, and the like, and allocating at least one frame for each group of M2M terminals in the channel for initiating the access request.
  • the channel is a random access channel or an M2M service dedicated channel, and may also be other channels that allow an access request to be initiated.
  • the resource management method, device and system for M2M communication provided by the embodiment of the present invention, because the M2M service dedicated channel is allocated for the M2M service, and the M2M service communication is performed through the M2M service dedicated channel, so that the other in the network
  • the channel can be provided to the existing H2H communication to ensure that the H2H communication is carried out normally; even if a large number of The M2M service will not preempt other non-M2M service dedicated channels, and H2H communication can be performed through other channels to ensure normal H2H communication.
  • the M2M service uses a dedicated channel for data transmission, it facilitates the operator to separately manage the M2M service and the H2H service.
  • the M2M service in the cell is used as an example to describe the resource management method of the M2M communication.
  • the network side allocates the M2M service dedicated channel for the M2M service in the cell unit.
  • Accessing the M2M service dedicated channel in the embodiment of the present invention, the channel access information of the M2M service dedicated channel needs to be sent to the M2M terminal in the system message or other common channel, and the M2M service dedicated channel is currently occupied.
  • the status or idle status information is sent to the M2M terminal.
  • the method specifically includes:
  • the M2M terminal When an M2M service is initiated, the M2M terminal initiates access to a BSS (Base Station Subsystem, a base station subsystem, equivalent to an access network) on the network side according to channel access information obtained from a system message or other common channel.
  • the request that is, the access request may be initiated to the BSS through the allocated M2M service dedicated channel.
  • the access request in the embodiment of the present invention may further indicate information such as the requested M2M service type, the amount of data to be sent, and the like.
  • multiple M2M terminals may simultaneously initiate an access request in a cell, and after receiving the uplink access request of the M2M terminal, the BSS will firstly access the M2M terminal corresponding to the first normally received access request.
  • the uplink channel of the M2M service dedicated channel is assigned to the selected M2M terminal; of course, when the uplink channel is assigned, the selected M2M terminal can be instructed to exit the service immediately after the service data transmission is completed. Or indicating that the selected M2M terminal accesses the information sent by the BSS after the service data transmission is completed. It is assumed that the selected M2M terminal directly exits the service after the service data transmission is completed in the embodiment, and the specific application is as follows.
  • the BSS of the embodiment of the present invention needs to send the uplink channel to the other M2M terminals through the downlink channel of the M2M service dedicated channel. Information to instruct other M2M terminals not to send access requests at this time. In this way, the useless access request initiated by the M2M terminal can be reduced, and the amount of access request processing of the BSS can be reduced, and the load of the BSS is reduced.
  • the other M2M terminals always listen to the downlink of the dedicated channel when the data has not been transmitted, and after receiving the information occupied by the uplink channel, no longer initiate an access request until the selected M2M terminal transmits the service data and the M2M service
  • the uplink channel of the dedicated channel returns to the idle state again, and the M2M terminal in the cell can continue to initiate the access request.
  • the service data is sent to the BSS through the uplink channel of the M2M service dedicated channel, and the message for sending the service data is not limited in this embodiment.
  • the message sends service data, and can also send service data by defining a new dedicated message.
  • the service data can be sent through the application data message, and in the packet domain, the service data can be sent through the wireless data block. The same applies to the transmission of service data in other embodiments of the present invention.
  • the BSS After receiving the service data sent by the selected M2M terminal, the BSS forwards the service data to the core network, so that the M2M terminal completes an M2M communication.
  • the selected M2M terminal in the embodiment of the present invention exits the M2M service dedicated channel by itself after completing the transmission of the service data. After the selected M2M terminal performs the transmission of the service data, the embodiment of the present invention releases the uplink channel of the M2M service dedicated channel.
  • the process needs to determine whether the selected M2M terminal needs to continue listening to the downlink, and will determine The result is sent to the selected M2M terminal; if it is determined that the downlink is not required to be listened to, the M2M terminal directly exits the M2M service dedicated channel after receiving the indication; if it is determined that the downlink needs to be heard, the M2M terminal exits the M2M service after receiving the downlink data. Dedicated channel.
  • the BSS of the embodiment of the present invention needs to send an uplink channel idle message to the M2M terminal through the downlink channel of the M2M service dedicated channel, indicating that the current uplink channel is not occupied, and needs to send service data.
  • the M2M terminal can send an access request.
  • the M2M terminal that listens to the downlink initiates an access request, and the processing of the specific access request may return to the 601 process for processing.
  • the network side may also send some network side data and/or response messages on the downlink channel, and the M2M terminal obtains the information by listening to the downlink.
  • the network side can send some instruction information, and the M2M can determine the subsequent operation by using the instruction information.
  • the network side can send a frequency indicating when the subsequent service is initiated and initiated, and the M2M terminal stores the information after receiving the information.
  • the service is re-initiated next time according to the service initiation time indicated by the network.
  • the data sent by the network side may be shared by the M2M terminal on the dedicated channel, or may carry an identifier in the data to indicate that it is sent to a certain or a specific type of M2M terminal.
  • the BSS may send an indication to the M2M terminal in the downlink channel to indicate that the configuration of the M2M service dedicated channel of the M2M terminal has changed, and the terminal is required.
  • the M2M terminal Re-reading the system message, the M2M terminal re-listens the system message to obtain new channel access information, and accesses the newly configured M2M service dedicated channel according to the new channel access information; the BSS can also directly indicate the new M2M on the downlink.
  • the channel access information of the service dedicated channel the M2M terminal can directly access the new M2M service dedicated channel according to the channel access information.
  • the network side may always reserve an M2M service dedicated channel for the M2M service, and the access information of the dedicated channel is broadcasted in a public downlink such as a system message.
  • the network side can also establish an M2M service dedicated channel for it and broadcast it in the system message only when the M2M service is initiated.
  • the network side may also assign the M2M service dedicated channel to the normal H2H service for use. That is, the dedicated channel can be dynamically established.
  • the channel can also be dynamically released during the M2M service.
  • the network side may send an indication on the downlink channel to request an M2M terminal that has not yet sent service data.
  • the response is sent. If no response is received, the service data of all the M2M terminals has been sent.
  • the network side may choose to release the M2M service dedicated channel, so that the M2M service dedicated channel can be used for other services. Provide services.
  • the M2M service dedicated channel is allocated for the M2M service, and the M2M service communication is performed through the M2M service dedicated channel, so that other channels in the network can be provided to the existing H2H communication.
  • M2M services are classified into many types, such as M2M services in the power monitoring field, M2M services in the public transportation system, etc. If all M2M terminals in a cell share an M2M service dedicated channel, it may cause different The conflict between the services, the embodiment of the present invention may also allocate multiple M2M service dedicated channels for the M2M service, and the same type of M2M terminal shares the same M2M service dedicated channel; of course, if a certain M2M service is in a cell If there are a large number of M2M terminals, the terminals of the M2M service can be divided into several groups, and the M2M terminals in each group separately share one M2M service dedicated channel. For this reason, the embodiment of the present invention may also be optimized, and the specific optimization scheme may also adopt, but is not limited to, the following solutions:
  • the M2M terminal is divided into different groups, and each group is assigned a different M2M service dedicated channel; for example, an M2M service is allocated for a service with a particularly high latency requirement (such as an emergency service).
  • the dedicated channel allocates another M2M service dedicated channel for the M2M service with low delay requirement. This can avoid the situation that the service data with high delay requirement cannot be sent in time due to the low-latency service occupying the channel.
  • the embodiment of the present invention may further divide the M2M terminal sharing the same M2M service dedicated channel into at least two packets, and send a message to the M2M terminal sharing the same M2M service dedicated channel through the BSS to indicate that the M2M service is currently allowed to be accessed.
  • M2M terminal grouping of the dedicated channel thereby realizing time-divisional access sharing the same M2M service dedicated channel, and alleviating the conflict of the M2M service dedicated channel.
  • the embodiment of the present invention can share the same
  • the M2M terminal of the M2M service dedicated channel is divided into at least two packets, and a priority is defined for each packet.
  • the BSS needs to perform the following control according to the definition of the priority: the network side broadcasts the priority of the M2M terminal currently occupying the uplink channel in the downlink, When the priority of the packet of the M2M terminal that is currently occupied by the M2M service dedicated channel is smaller than the priority of the M2M terminal that initiates the access request, the M2M terminal that currently occupies the M2M service dedicated channel is sent to the M2M terminal that initiates the access request.
  • the M2M terminal also needs to save its corresponding priority
  • the M2M terminal also needs to perform the following control according to the definition of the priority: The priority of the packet where the M2M terminal currently occupies the M2M service dedicated channel is smaller than the priority needs to be initiated.
  • the M2M terminal that needs to initiate the access request initiates an access request on the RACH channel.
  • the M2M service dedicated channel can be allocated to the higher priority M2M terminal as much as possible.
  • the embodiment of the present invention needs the BSS to send a message to the M2M terminal that shares the same M2M service dedicated channel, to indicate that the M2M terminal group that is currently allowed to access the M2M service dedicated channel and/or currently occupy the M2M service.
  • an M2M service initiated by an M2M terminal in a cell is taken as an example, and a resource management method for M2M communication is specifically described.
  • the network side does not have an M2M service in advance.
  • the M2M service dedicated channel is allocated. As shown in FIG. 7, the method specifically includes:
  • the M2M terminal When an M2M service is initiated, the M2M terminal initiates an access request to the BSS on the network side by using a random access channel (RACH).
  • RACH random access channel
  • the access request in the embodiment of the present invention may further indicate the requested M2M service type and location. Information such as the amount of data to be sent.
  • the BSS After receiving the access request, the BSS allocates an M2M service dedicated channel for the M2M service.
  • multiple M2M terminals may simultaneously initiate an access request in a cell, and after receiving the uplink access request of the M2M terminal, the BSS will firstly access the M2M terminal corresponding to the first normally received access request.
  • the uplink channel of the M2M service dedicated channel is assigned to the selected M2M terminal; of course, when the uplink channel is assigned, the selected M2M terminal can be instructed to exit immediately after the service data transmission is completed.
  • the service, or the selected M2M terminal accesses the information sent by the BSS after the service data transmission is completed. It is assumed that the mode of directly exiting the service after the selected M2M terminal service data transmission is completed in this embodiment, and the specific application is as follows.
  • the BSS sends the channel access information of the M2M service dedicated channel to the M2M terminal in the system message or other common channel.
  • the BSS of the embodiment of the present invention also needs to send the information occupied by the uplink channel to other M2M terminals on the downlink channel of the M2M service dedicated channel, so as to indicate that other M2M terminals do not need to send the access at the moment. request. In this way, the useless access request initiated by the M2M terminal can be reduced, and the amount of access request processing of the BSS can be reduced, and the load of the BSS is reduced.
  • the other M2M terminal After receiving the information that the uplink channel is occupied, the other M2M terminal does not initiate the access request until the selected M2M terminal transmits the service data and the uplink channel of the M2M service dedicated channel returns to the idle state again.
  • the M2M terminal in the cell can continue to initiate an access request to the BSS. 705.
  • the selected M2M terminal After receiving the assignment of the M2M service dedicated channel, the selected M2M terminal sends the service data to the BSS through the uplink channel of the M2M service dedicated channel.
  • the BSS After receiving the service data sent by the selected M2M terminal, the BSS forwards the service data to the core network, so that the M2M terminal completes the M2M communication.
  • the selected M2M terminal in the embodiment of the present invention exits the M2M service dedicated channel by itself after completing the transmission of the service data.
  • the embodiment of the present invention also needs to release the uplink channel of the M2M service dedicated channel.
  • the process needs to determine whether the selected M2M terminal needs to continue listening to the downlink, and sends the judgment result. If the M2M terminal is determined to not need to listen to the downlink, the M2M terminal directly exits the M2M service dedicated channel after receiving the indication; if it is determined that the downlink is not required to be listened to, the M2M terminal exits the M2M service after receiving the downlink data. channel.
  • the BSS of the embodiment of the present invention needs to pass the downlink channel of the M2M service dedicated channel to the M2M terminal, because the other M2M terminal is instructed not to initiate the access request in the process of the previous 704, in order to ensure that the released M2M service dedicated channel can be utilized.
  • the message that the uplink channel is idle is sent, indicating that the current uplink channel is not occupied, and the M2M terminal that needs to send the service data can send the access request.
  • the M2M terminal that listens to the downlink receives the indication and then initiates the access request. Since the other M2M terminals obtain the channel access information at this time, the subsequent process can be performed according to the method provided in Embodiment 2.
  • the network side may also send some network side data and/or response messages on the downlink channel, and the M2M terminal obtains the information by listening to the downlink.
  • the network side can send some instruction information, and the M2M can determine the subsequent operation by using the instruction information.
  • the network side can send a frequency indicating when the subsequent service is initiated and initiated, and the M2M terminal stores the information after receiving the information.
  • the service is re-initiated next time according to the service initiation time indicated by the network.
  • Data sent by the network side can be Therefore, it is shared by the M2M terminal on the dedicated channel, and the identifier may also be carried in the data to indicate that it is sent to a certain type or a specific terminal.
  • the M2M service dedicated channel is allocated for the M2M service, and the M2M service communication is performed through the M2M service dedicated channel, so that other channels in the network can be provided to the existing H2H communication.
  • M2M service dedicated channels are allocated in the same 'h area
  • the M2M terminal is divided into multiple groups, and the M2M terminal group and the priority group that share the same M2M service dedicated channel are used.
  • the specific implementation scheme provided in Embodiment 2 can be adopted for the dynamic allocation and release of the dedicated channel.
  • the M2M service in the cell initiates the M2M service as an example, and the resource management method of the M2M communication is specifically described.
  • the network side allocates an M2M service dedicated channel for the M2M service in a cell unit, where the M2M service is dedicated.
  • the channel includes an M2M service dedicated access channel and an M2M service dedicated traffic channel.
  • the M2M service dedicated channel needs to be sent in the system message or other common channel in the embodiment of the present invention.
  • the channel access information, and the information that the M2M service dedicated channel is currently in an occupied state or an idle state is sent to the M2M terminal.
  • the method specifically includes:
  • the M2M terminal initiates an access request to the BSS on the network side according to the dedicated access channel access information obtained from the system message or other common channel, that is, the M2M service dedicated access channel may be adopted.
  • the access request is initiated to the BSS.
  • the access request in the embodiment of the present invention may further indicate information such as the requested M2M service type, the amount of data to be sent, and the like.
  • multiple M2M terminals may simultaneously initiate an access request in a cell, and the BSS receives the first normally received access after receiving the access request of the M2M terminal.
  • the terminal quits the service immediately after the service data is sent, or indicates that the selected M2M terminal accesses the information sent by the BSS after the service data transmission is completed. It is assumed that the mode of directly exiting the service after the selected M2M terminal service data transmission is completed in this embodiment, and the specific application is as follows.
  • the uplink channel of the dedicated service channel of the M2M service has been assigned to the selected M2M terminal, so that other M2M terminals in the cell cannot use the M2M service dedicated service channel to send service data at the same time, in order to ensure The other M2M terminals do not initiate useless access requests in this case.
  • the BSS in the embodiment of the present invention also needs to send the M2M service to other M2M terminals on the downlink channel through the M2M service dedicated access channel and/or the dedicated service channel.
  • the information on the upstream channel of the dedicated traffic channel is occupied to indicate that other M2M terminals are not to send access requests at this time. In this way, the useless access request initiated by the M2M terminal can be reduced, and the amount of access request processing of the BSS can be reduced, and the load of the BSS can be alleviated.
  • the other M2M terminal After receiving the information of the uplink channel occupied by the dedicated traffic channel of the M2M service, the other M2M terminal does not initiate the access request until the selected M2M terminal transmits the service data and the uplink channel of the M2M service dedicated service channel is again Returning to the idle state, at this time, the M2M terminal in the small area can continue to initiate an access request to the BSS through the M2M service dedicated access channel.
  • the M2M terminal accesses the dedicated channel according to the access information of the dedicated service channel broadcasted in the system message, and sends the service data, and sends the service data message.
  • the patent is not limited, and may be sent by using an existing message or by defining a new dedicated message.
  • the service data may be sent through the application data message, and in the packet domain, the service data may be sent through the wireless data block.
  • the BSS After receiving the service data sent by the selected M2M terminal, the BSS performs the service. The data is forwarded to the core network, and as a result, the M2M terminal completes an M2M communication.
  • the selected M2M terminal in the embodiment of the present invention exits the M2M service dedicated service channel by itself after completing the transmission of the service data.
  • the embodiment of the present invention also needs to release the uplink channel of the M2M service-dedicated service channel.
  • the M2M terminal selected in the 802 process accesses the information sent by the BSS after the service data transmission is completed, it is determined in the process whether the selected M2M terminal needs to continue listening to the downlink, and the judgment result is sent.
  • the selected M2M terminal if it is determined that the downlink is not required to be listened to, the M2M terminal directly exits the M2M service dedicated service channel after receiving the indication; if it is determined that the downlink is not required to be listened to, the M2M terminal exits the M2M service after receiving the downlink service data.
  • Dedicated traffic channel if it is determined that the downlink is not required to be listened to, the M2M terminal exits the M2M service after receiving the downlink service data.
  • the BSS of the embodiment of the present invention needs to pass the downlink channel of the dedicated access channel of the M2M service, because the other M2M terminal is instructed not to initiate the access request in the process of the previous 803, in order to ensure that the released M2M service dedicated service channel can be utilized.
  • the M2M terminal that listens to the downlink initiates an access request through the M2M service dedicated access channel, and the processing of the specific access request may return to the 801 process for processing.
  • the access information of the M2M dedicated traffic channel can also be directly sent in the downlink of the dedicated access channel, which can reduce the burden of the system message, and the terminal can directly listen to the downlink of the dedicated access channel to obtain the access of the dedicated service channel. information.
  • the network side may also send some network side data and/or response messages on the downlink channel, and the M2M terminal obtains the information by listening to the downlink.
  • the network side can send some instruction information, and the M2M can determine the subsequent operations by using the instruction information.
  • the network side can send a frequency indicating when the subsequent service is initiated and initiated, and the M2M terminal stores the information after receiving the information. The next time, the service is initiated again according to the service initiation time indicated by the network.
  • the data sent by the network side may be shared by the M2M terminal on the dedicated channel, or may carry an identifier in the data to indicate that it is sent to a certain type or a specific terminal.
  • the network side may always reserve an M2M service dedicated channel for the M2M service, and the access information of the dedicated channel is broadcasted in a public downlink such as a system message.
  • the network side can also establish an M2M service dedicated channel for it and broadcast it in the system message only when the M2M service is initiated.
  • the network side may also assign the M2M service dedicated channel to the normal H2H service for use. That is, the dedicated channel can be dynamically established.
  • the channel can also be dynamically released during the M2M service.
  • the network side may send an indication on the downlink channel, and request that the M2M terminal that has not yet sent the service data sends a response when the uplink of the M2M service dedicated channel is idle. If no response is received, the service data of all the M2M terminals has been sent. At this time, the network side may choose to release the M2M service dedicated channel, so that the M2M service dedicated channel can provide services for other services.
  • the embodiment can be further optimized.
  • the dedicated traffic channel is occupied, since the dedicated traffic channel and the dedicated access channel are two different physical channels, even when the dedicated traffic channel is occupied, the service data needs to be transmitted.
  • the terminal can still send an access request on the dedicated access channel.
  • the network side may assign uplinks to the terminals in advance. For example, the terminal that requests the sending of the access request needs to notify the terminal of the size of the service data to be sent, and determines the starting time of the next uplink idle, and carries the initial occupation time.
  • the upstream channel is assigned to the terminal that sends the access request on the access channel. The terminal will start to occupy the uplink when the initial occupation time is reached.
  • the BSS may send a message to the M2M terminal in the downlink channel of the M2M service dedicated access channel to indicate the M2M service dedicated channel of the M2M terminal.
  • the configuration changes the M2M terminal needs the idle state to reacquire the channel access information, and accesses the newly configured M2M service dedicated channel according to the new channel access information; the BSS can also directly indicate the new M2M service dedicated channel on the downlink.
  • Channel access information the M2M terminal can directly access the new M2M service dedicated channel according to the channel access information.
  • an M2M service dedicated channel is allocated for the M2M service, and the dedicated channel includes an M2M service dedicated access channel and an M2M service dedicated service channel, and an access request is initiated by using the M2M service dedicated access channel.
  • the M2M service data is sent through the dedicated service channel of the M2M service, so that other channels in the network can be provided to the existing H2H communication to ensure normal H2H communication; even if a large number of M2M services appear at the same time, It will not preempt other non-M2M service dedicated channels, and can perform H2H communication through other channels to ensure normal H2H communication.
  • the indication sent to the M2M terminal in the process of the embodiment 803, 807 is sent in the M2M service dedicated access channel, and the above indication may also be sent on the M2M service dedicated service channel.
  • the dedicated channel for the M2M service is allocated, and in the same manner as in the third embodiment, the M2M service dedicated channel is allocated after receiving the access request through the RACH.
  • the method in Embodiment 2 may be adopted. The specific implementation provided.
  • each frame in the figure indicates a packet corresponding to the frame, and different frames of a channel for initiating an access request may be allocated to different groups by using frame indication information, and the M2M terminal is in a frame corresponding to the group to which it belongs.
  • Sending an access request on the number can greatly reduce the collision of a large number of terminals simultaneously sending access requests in the same frame.
  • the manner of grouping may be as described in Embodiment 2, or may be grouped according to a certain algorithm according to a terminal identifier (such as IMSI).
  • the packet information may be indicated by the network by signaling or may be pre-configured.
  • the manner in which the packet sends the access request can be further optimized, and the high-priority service can be allowed to send the access request more frequently, so as to ensure that the M2M high-priority/emergency service data can be sent in time, as shown in FIG. 10
  • Group1 is a high-priority alarm service.
  • Group2 and Group3 are common services. Therefore, Groupl has more frequent access requests than other groups:
  • the manner in which the packet sends the access request can be further optimized, and some frame number resources are reserved for the high-priority service, so that the M2M terminal sends the high-priority/emergency service data, as shown in FIG.
  • the reserved frame number resources, these reserved frame numbers are used to send emergency alarm data for the M2M terminal to send high priority/emergency service data, and the M2M terminal may not be restricted by the above group when transmitting such data.
  • the M2M service in the cell initiates the M2M service as an example, and the resource management method of the M2M communication is specifically described.
  • the network side allocates the M2M service dedicated channel for the M2M service by using the cell as the unit; The method specifically includes:
  • the M2M terminal After the M2M terminal initiates the M2M service or successfully camps on a new cell, the M2M terminal initiates a registration request to the BSS on the network side, where the registration request may include the terminal identifier, the ID of the currently camped cell, and the like, and the service saves the information.
  • the information is prepared for subsequent access scheduling.
  • the M2M terminal and the BSS can perform a periodic heartbeat detection process, so that the BSS can obtain the M2M terminal that is currently active in the cell.
  • the BSS performs polling scheduling on the M2M terminals according to the number of currently active terminals acquired by the 1202 process, and uses the downlink channel of the M2M service dedicated channel.
  • the M2M terminal sends scheduling information, where the scheduling information includes information indicating a time interval for transmitting the service data.
  • the scheduling information includes an M2M terminal identifier and a radio block number, and the radio block number indication station The terminal corresponding to the M2M terminal identifier sends the service data in the time interval corresponding to the radio block number; or the scheduling information includes the M2M terminal identifier and the frame number, where The frame number indicates that the terminal corresponding to the M2M terminal identifier sends service data in a time interval corresponding to the frame number.
  • the M2M terminal listens to the downlink acquisition scheduling information of the M2M service dedicated channel, so as to obtain a time interval for transmitting the service data by itself; when the M2M service is initiated, the service data can be sent to the BSS through the M2M service dedicated channel in the time interval indicated by the scheduling information.
  • timing of initiating M2M services includes but is not limited to the following:
  • the service initiation may be
  • the BSS After receiving the service data sent by the M2M terminal, the BSS forwards the service data to the core network, so that the M2M terminal completes an M2M communication.
  • the embodiment of the present invention may also allocate multiple M2M service dedicated channels in the same cell, divide the M2M terminal into multiple groups, and share the M2M terminal grouping and setting priorities of the same M2M service dedicated channel.
  • the specific implementation provided in Embodiment 2 can be employed.
  • the M2M service dedicated channel is allocated for the M2M service, and the M2M service communication is performed through the M2M service dedicated channel, so that other channels in the network can be provided to the existing H2H communication.
  • the embodiment of the present invention provides a resource management apparatus for M2M communication.
  • the apparatus includes: an allocating unit 131, an assigning unit 132, a receiving unit 133, and a sending unit 134.
  • the allocation unit 131 is configured to allocate an M2M service dedicated channel, and the M2M service dedicated channel can be shared by multiple M2M terminals.
  • the M2M terminals share the same M2M service dedicated channel transmission data, and after the M2M service dedicated channel is allocated, the Sending unit After the M2M service dedicated channel is allocated, the access information of the M2M service dedicated channel is sent to the M2M terminal sharing the M2M service dedicated channel, so that the M2M terminal can correctly access the M2M service dedicated channel;
  • the unit 22 is configured to assign an M2M service dedicated channel to an M2M terminal selected from the M2M terminals sharing the M2M service dedicated channel, and the selected M2M terminal may be selected but not limited to: dedicated to the M2M service.
  • the channel is assigned to an M2M terminal selected from the M2M terminals sharing the M2M service dedicated channel.
  • the selected M2M terminal is the first to correctly send the access request to the network side;
  • the receiving unit 133 is configured to receive data sent by the selected M2M terminal through the M2M service dedicated channel, and the sending unit 134 is configured to forward the data sent by the selected M2M terminal to the core network.
  • the assignment unit 132 needs to receive the access request sent by the M2M terminal before the process of assigning the M2M service dedicated channel to the selected M2M terminal, and the M2M terminal sends the access request, but is not limited to the following two types. Method to realize:
  • the allocated M2M service dedicated channel may be after receiving the access request of the M2M terminal, so that the M2M terminal does not allocate the M2M service dedicated channel when sending the access request, so the receiving unit 133 is
  • the access request received before the M2M service dedicated channel is allocated is: an access request initiated by the M2M terminal through the random access channel.
  • the allocating the M2M service dedicated channel may be before the access request of the M2M terminal is received, so that the M2M service has allocated the M2M service dedicated channel when the access request is sent, so the receiving unit 133 is allocating
  • the access request received before the M2M service dedicated channel is: an access request initiated by the M2M terminal through the M2M service dedicated channel.
  • the sending unit 134 in the embodiment of the present invention needs to indicate that the current M2M service dedicated channel of other M2M terminals is occupied. status.
  • the foregoing two implementation manners of the present invention allow at least two M2M terminals to share the same M2M service dedicated channel.
  • the M2M terminal sharing the same M2M service dedicated channel can be divided into at least two packets; M2M terminals in the same group are sending
  • the allocation unit 131 in the embodiment of the present invention is further configured to allocate at least one frame for each packet from the channel that initiates the access request, where the M2M terminal in each packet is in the allocated frame. Initiate an access request.
  • the sending unit 134 is further configured to indicate, to the M2M terminal sharing the same M2M service dedicated channel, the M2M terminal packet that is currently allowed to access the M2M service dedicated channel, so that the M2M terminal performs packet scheduling, and does not appear. conflict.
  • the embodiment of the present invention may also be optimized, specifically: defining a priority for each packet, the device further includes: a releasing unit 135; the releasing unit 135 is configured to occupy the M2M service dedicated channel at present When the priority of the packet where the uplink M2M terminal is located is smaller than the priority of the packet where the M2M terminal that initiates the access request is located, the M2M terminal that currently occupies the M2M service dedicated channel is sent to the M2M terminal that initiates the access request.
  • the sending unit 134 is further configured to: to the M2M terminal sharing the same M2M service dedicated channel, to indicate at least one of the following information: The priority of the M2M terminal group that is allowed to access the M2M service dedicated channel, the packet where the M2M terminal that currently occupies the uplink of the M2M service dedicated channel, and the group where the M2M terminal that currently occupies the uplink of the M2M service dedicated channel is located;
  • the M2M service dedicated channel may include an M2M service dedicated access channel and an M2M service dedicated traffic channel, so that the receiving unit 133 may receive the M2M terminal through the M2M service dedicated access channel.
  • the initiated access request and receives the data sent by the M2M terminal through the M2M service dedicated service channel.
  • the embodiment of the present invention further provides a resource management system for M2M communication.
  • the system includes an M2M terminal 141, an access network 142, and a core network 143.
  • the access network 142 needs to share the same M2M.
  • the M2M terminal 141 of the service dedicated channel allocates an M2M service dedicated channel, and also needs to select one M2M terminal 141' from all the M2M terminals 141, and the selected M2M terminal 141' is an M2M terminal that shares the M2M service dedicated channel.
  • the selected access request initiated by the M2M terminal 141 ′ is the first normally received access request, and
  • the specific application is as follows:
  • the M2M terminal 141 When there is an M2M service in the cell, the M2M terminal 141 is configured to initiate an access request; the access network 142 is configured to receive an access request initiated by the M2M terminal 141, and assign an M2M service dedicated channel to initiate the connection.
  • the scheme for allocating the dedicated channel of the M2M service in the embodiment of the present invention may adopt, but is not limited to, the following solutions:
  • the M2M terminal 141 initiates an access request through a random access channel; after receiving the access request, the access network 142 allocates an M2M service dedicated channel to the M2M terminal 141 sharing the same M2M service dedicated channel. And transmitting the access information of the M2M service dedicated channel to the M2M terminal 141.
  • the access network 142 allocates an M2M service dedicated channel to the M2M terminal 141 sharing the same M2M service dedicated channel before the M2M terminal receives the access request, and access information of the M2M service dedicated channel. And sent to the M2M terminal 141; the M2M terminal 141 initiates an access request through the M2M service dedicated channel.
  • the resource management method, device and system for M2M communication provided by the embodiment of the present invention, because the M2M service dedicated channel is allocated for the M2M service, and the M2M service communication is performed through the M2M service dedicated channel, so that the other in the network
  • the channel can be used for existing H2H communication to ensure normal H2H communication. Even if a large number of M2M services appear at the same time, other non-M2M service dedicated channels will not be preempted, and H2H communication can be performed through other channels.
  • the H2H communication is normally performed.
  • the embodiment of the present invention provides a resource management apparatus for M2M communication.
  • the apparatus includes: a receiving unit 151 and a sending unit 152.
  • the receiving unit 151 is configured to receive access information of an M2M service dedicated channel, so as to be able to Accessing the M2M service dedicated channel through the access information, the M2M service dedicated channel is shared by one or more M2M terminals; the sending unit 152 is configured to access the information according to the M2M service dedicated channel access information.
  • the M2M service dedicated channel is described, and data is transmitted through the M2M service dedicated channel.
  • the receiving unit 151 is further configured to receive information about whether the current uplink channel of the M2M service dedicated channel is occupied, in order to prevent the other M2M from re-issuing the access request and causing waste of resources when the data bit service data is sent by the sending unit.
  • the implementation manner of sending data by using the M2M service dedicated channel in the embodiment of the present invention includes but is not limited to the following two modes:
  • the network side assigns the M2M service dedicated channel to the first terminal that initiates the access request
  • the receiving unit 151 is further configured to receive the assignment information, where the assignment information indicates that the uplink of the M2M service dedicated channel is allocated.
  • the channel in this way, the sending unit 152 can send the service data through the assigned M2M service dedicated channel.
  • the receiving unit 151 receives scheduling information before transmitting data through the M2M service dedicated channel, where the scheduling information indicates a time interval in which each M2M terminal sharing the channel transmits data; the sending unit 152 passes the The M2M service dedicated channel transmits service data in the time interval.
  • the M2M terminal sends an access request, but is not limited to the following two implementation manners: 1.
  • the sending unit 152 initiates an access request through the random access channel before receiving the access information of the M2M service dedicated channel; 2.
  • the sending unit 152 is After receiving the access information of the M2M service dedicated channel, the access request is initiated through the M2M service dedicated channel.
  • the M2M terminal may be divided into multiple groups, and the receiving unit 151 receives frame indication information when the M2M terminal includes at least two groups of M2M terminals, and the frame indication information is represented. At least one frame is allocated to each group of M2M terminals in the channel that initiates the access request; the sending unit 152 initiates an access request in the allocated frame according to the frame indication information.
  • the receiving unit 151 is further configured to share the same M2M service dedicated channel
  • the M2M terminal includes at least two sets of M2M terminals, it receives an indication of an M2M terminal packet that is currently allowed to access the M2M service dedicated channel, so as to determine whether it currently accesses the M2M service dedicated channel by itself.
  • the embodiment of the present invention may further perform optimization, specifically: defining a priority for each packet, where the receiving unit 151 is further configured to include at least two M2M terminals that share the same M2M service dedicated channel.
  • the M2M terminal is configured to define a priority for each group of M2M terminals, at least one of the following information is received: an M2M terminal packet that is currently allowed to access the M2M service dedicated channel, and an M2M terminal that currently occupies the uplink of the M2M service dedicated channel.
  • the priority of the packet in which the M2M terminal currently occupies the uplink of the M2M service dedicated channel is located; the sending unit 152 is further configured to: the priority of the packet where the M2M terminal currently occupies the M2M service dedicated channel is smaller than the need to initiate the access When the priority of the requested M2M terminal is set, an access request is initiated.
  • the embodiments of the present invention are mainly used in various communication networks that provide services for M2M services, such as: GERAN networks, third generation mobile communication networks, and the like.
  • the present invention can be implemented by means of software plus necessary general hardware, and of course, by hardware, but in many cases, the former is a better implementation. .
  • the technical solution of the present invention which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a readable storage medium, such as a computer.
  • a floppy disk, hard disk or optical disk, etc. includes instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform the methods described in various embodiments of the present invention.

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Abstract

La présente invention concerne un procédé et un dispositif pour la gestion de ressources dans la communication entre machines (M2M), elle se rapporte au domaine technique de la communication M2M et elle permet de résoudre le problème de l'impact de la communication M2M sur la communication de personne à personne (H2H) qui pouvait se produire dans l'art antérieur. Le mode de réalisation de la présente invention est le suivant : une voie de données spécialisée réservée au service M2M est affectée à un ou plusieurs terminaux M2M pour la communication M2M, ce ou ces terminaux M2M étant les terminaux M2M qui partagent ladite voie de données spécialisée réservée au service M2M; des informations d'accès de la voie de données spécialisée réservée au service M2M sont envoyées aux terminaux M2M qui partagent ladite voie de données; et les terminaux M2M qui partagent la voie de données reçoivent les données envoyées par l'intermédiaire de cette même voie. Le mode de réalisation de la présente invention est principalement utilisé dans le réseau de communication qui assure le service M2M.
PCT/CN2010/077196 2009-10-29 2010-09-21 Procédé et dispositif pour la gestion de ressources dans la communication entre machines WO2011050669A1 (fr)

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