40results about How to "Avoid signaling storms" patented technology

The invention discloses a method and a system for transmitting heartbeat messages, a terminal and network equipment. The method comprises the following steps: extracting the load of any of a plurality of heartbeat messages having the same effects to be transmitted in a preset time interval by using the terminal, extracting the head information of the heartbeat messages, connecting the head information end to end to form an integrated head, and forming an integrated heartbeat package by using the integrated head and the load; transmitting the integrated heartbeat package to the network equipment; splitting the head of the integrated heartbeat package into multiple pieces of separate head information by using the network equipment, duplicating the load of the integrated heartbeat package, and constructing each load and one piece of split head information into a heartbeat message respectively; transmitting each heartbeat message to a corresponding application server according to an address in the head information of each heartbeat message respectively. According to the method, frequent transmission of the heartbeat messages can be avoided, and the pressure of the heartbeat messages on the network are lowered.

An embodiment of the invention discloses a disaster tolerance method which is applied to a serving-call session control function S-CSCF network element side. The method comprises the following steps: receiving a user called request message; and when determining that a session border controller SBC and / or a proxy-call session control function P-CSCF corresponding to the user are / is in a state of failure according to the user called request message, sending a server assignment request SAR message to a home subscriber server HSS so as to implement a disaster tolerance process according to the SAR message, wherein the SAR message carries a P-CSCF disaster tolerance identifier. Other embodiments of the invention disclose a network element and a server.

The invention discloses a method for dynamically controlling a channel allocating and scheduling strategy on a base station side based on satisfaction of user service experiences. The method comprises the following steps that (A) service types of user services are determined according to characteristics of the user services; (B) control channel resources of the corresponding types are allocated to the user services according to the service types; (C) corresponding types of scheduling modes are used for the user services according to the service types. The invention further discloses base station equipment using the method.

The invention discloses a communication method and a wireless communication device, and the method comprises the steps that the wireless communication device sends a first request message to a first cell, and the first request message is used for requesting to release the wireless connection between a first user and the first cell; the wireless communication device receives a response message fromthe first cell, wherein the response message is used for responding to the first request message; and the wireless communication device sends a second request message to the second cell, wherein thesecond request message is used for requesting to establish the wireless connection between the second user and the second cell.

The invention provides a method for packet-based cell access and selection in M2M communication. The method includes Machine Type Communications Devices (MTCD)s are grouped according to service characteristics of the MTCDs, and a head MTCD is determined for each group; the head MTCD devices send access request signaling to a base station, and the base station broadcast its own status information after receiving the access request signaling, wherein the status information includes available subcarrier and remaining power space of each subcarrier; and the head MTCD judge whether to request access to the base station according to the status information and the service characteristics of all the MTCDs of its group. According to the method for packet-based cell access and selection in M2M communication, the MTCDs which have the same service and are close in distance are grouped, application and selection of cell access are performed using group as a unit, a signaling storm generated in mass separate application of MTCDs can be avoided, and congestion of a PUCCH is effectively avoided.

The invention discloses a method for cell switchover suitable for a TD-LTE public network trunking system. The method for cell switchover suitable for the TD-LTE public network trunking system comprises the steps that when a group composed of a plurality of mobile radio stations conducts cross-cell switchover, a temporary small network is constituted by the mobile radio stations needing switchover according to a preset threshold; a bridge group user is selected from the small network, wherein two sets of transceivers are assembled to the bridge group user so that communication can be conducted on networks at two different frequencies at the same time; information sent by a source base station is transmitted to other group users in the temporary small network by the bridge group user. Switchover from the source access station to a target access station is achieved through the bridge group user and after the bridge group user enters a target network, the other group users sequentially enter the target access station through negotiation between the bridge group user and the target access station. According to the scheme, collision in the process of switchover of the group is remarkably reduced, so that time of interruption of services of the mobile radio stations is reduced, and the mobile radio stations are compatible with an existing wireless network.

The embodiment of the invention provides a cluster communication method, a cluster communication device, a dispatcher, a terminal and a system. The method comprises the following steps: a group establishment notification message is sent according to a group establishment request message, the group establishment notification message comprises a group identifier of the group to be established and atemporary mobile group identifier TMGI of a multicast channel of the group to be established, and the TMGI is allocated to the dispatcher and sends group data in a multicast mode on the multicast channel corresponding to the TMGI. According to the method provided by the embodiment of the invention, the TBCP connection message is not sent to the group user in a unicast manner during group establishment, so that the group establishment time delay is reduced, the signaling storm is avoided, dispatching system resources are saved, and the reliability of cluster communication is improved.

The embodiment of the invention relates to a paging optimization method, device and system. The method comprises the following steps of: obtaining historical residence information of UE to be paged; and optimizing a paging message sending range according to the historical residence information of the UE to be paged and a pre-set optimization policy. In the embodiment of the method, device, and system, a more optimal paging policy can be provided according to the historical residence information of the UE to be paged; therefore, excess consumption of wireless resources can be avoided to a certain degree while the signalling storm generated by paging can be prevented; and thus, the paging experience of terminal users and the consumption of the wireless resources achieve a good balance.

The invention discloses a message routing method and device, and belongs to the field of communications. The method comprises the steps that a first wrong response sent by downstream equipment is received, wherein the first wrong response at least carries an identifier of routing equipment through which the first wrong response passes; according to the identifier of the routing equipment through which the first wrong response passes and a locally-stored identifier of routing equipment through which a first request message corresponding to the first wrong response passes, next-hop equipment through which the first request message does not pass is selected for the first request message; the first request message is sent to the next-hop equipment. The message routing device comprises a receiving module, a selecting module and a sending module. According to the message routing method and device, the phenomenon that a large number of signals and a signal storm are generated in a network can be avoided.

An embodiment of the invention discloses a registration method for a hierarchical network. The method is applied to the hierarchical network composed of a ground network and at least one layer of air network. The method is characterized by comprising steps that a wireless network node acquires a registration result of an air network node, wherein the wireless network node is disposed in the ground network while the air network node is disposed in the air network and covers the wireless network node, and the registration result includes the attribute information and wave beam information of the air network node; the wireless network node broadcasting the registration result to mobile users covered by the wireless network node. The air network in the invention can be a satellite network and the hierarchical network is composed of the satellite network and the ground wireless network. The air network in the invention can be a balloon network and the hierarchical network is composed of the balloon network and the ground wireless network.

The invention discloses a paging optimization method, including the following step: presetting a corresponding relationship between user equipment (UE) to be paged and tracking area (TA) information,a corresponding relationship between the TA information and a base station, and a corresponding relationship between the base station and a subordinate cell; the method further includes the followingsteps: acquiring location information of the UE to be paged; determining the range of the base station in which a paging message needs to be sent according to the obtained location information of theUE to be paged and the preset various corresponding relationships; determining the corresponding relationship between each base station subordinate cell and the TA information according to the corresponding relationship between the TA information and the base station and the corresponding relationship between the base station and the subordinate cell; and optimizing the range of cells delivered bythe paging message within the determined range of the base station according to the TA information corresponding to the UE to be paged and the corresponding relationship between each base station subordinate cell and the TA information. The invention also discloses a paging optimization device at the same time.

The invention provides a tracking area updating device, system and method. The method includes the following steps that: first information is obtained through using user equipment adopted as a tracking area updating device, wherein the first information is used for determining waiting time; if it is determined that a tracking area updating process is required to be carried out, a processing module determines the waiting time according to the first information; and after waiting for the waiting time, the user equipment sends a tracking area updating request message to a core network device which is adopted as a tracking area updating device. With the tracking area updating device, system and method adopted, as for user equipment which moves at a high speed, for example, UE which communicates in a high-speed railway scene, each UE is configured to wait for a certain time, and thereafter, carry out a tracking area updating process, and therefore, signaling storm caused by a situation that a certain number of UE intensively trigger tracking area updating processes in a short time can be avoided, and network congestion can be avoided.

The invention provides a control method and device for connecting an eMTC terminal to a base station. The method comprises the steps of: when the base station of an eMTC system is prepared to be accessed randomly, randomly generating the first connection time; and, after the first connection time is delayed, sending a random access request to the base station of the eMTC system. By means of the method, the signalling storm due to the fact that a large number of eMTC terminals simultaneously initiate random access requests can be avoided; therefore, the eMTC network congestion probability is reduced; the success rate of randomly accessing the eMTC terminal to the base station is effectively increased; and the control method and device provided by the invention have relatively low complexity, and have better optimization and improvement effects on congestion control of the eMTC system.

The invention relates to a passive optical access network and a flow scheduling method thereof. The network comprises an OpenFlow controller, an optical line terminal node OF-OLT having an OpenFlow protocol proxy function, and an optical network unit ONU, wherein the OpenFlow controller is connected with the at least one optical line terminal node OF-OLT through a metropolitan area network; and the optical line terminal node OF-OLT is connected with at least one optical network unit ONU. According to the passive optical access network provided by the invention, resource scheduling is realized by the OF-OLT and the ONU, thereby reducing the cost and avoiding signaling storm. Meanwhile, bandwidth resource allocation and unified dynamic scheduling of users among a plurality of network domains are realized by the centralized OpenFlow controller so as to guarantee the quality of service and realize the optimized configuration of network resources, and the problem of low network resource utilization rate can be effectively solved.

The invention provides a trunked communication system, monitoring terminals and a joining method thereof. The joining method comprises the steps that when a monitoring terminal located in a current cell detects paging information from a network side, a cluster joining periodic value C is obtained from the paging information; when the monitoring terminal detects that a cluster is activated, the cluster is monitored, and a random value T is randomly selected from 0 to C; and the monitoring terminal launches a cluster joining process in a delayed mode to the network side according to the random value T. According to the joining method, the monitoring terminal launches the cluster joining process in the delayed mode to the network side according to the random value T, cluster joining moments of the monitoring terminals are evenly distributed in time to the greatest extent, signalling storm caused by a plurality of monitoring terminals joining a cluster at the same time is avoided, and therefore normal operation of a trunked communication service is guaranteed.

The invention discloses a PCC (policy control and charging) control method and system in an eHRPD (evolution high rate packet data) network. The PCC control method includes that in the eHRPD network, a PCC control contracting attribute value of a user is preset in an HSS to show whether PCC control is started or not so as to differentiate whether the user needs to execute a PCRF (policy and charging rule function) strategy or not, so that a load-bearing and strategy-executing network element is enabled to request an interaction process through business authentication so as to acquire an indicating message corresponding to the contracting attribute value; when PCC control is not started, the load-bearing and strategy-executing network element uses a pre-configured default control strategy, so that by the technical scheme, for many users who only need to use the pre-configured default control strategy, unnecessary information interaction processes for acquiring the control strategy from the PCRF can be avoided, signaling storm is avoided, and access process of the users is simplified.

The invention discloses a method and device for determining the state of a network element. The method comprises the steps: receiving a request message sent by the network element, wherein the requestmessage comprises at least one of a registration request message, a subscription request message, an update service request message and a notification confirmation request message; if the request message is not received within the set time interval, sending the request message; when the number of times that the request message is not received within the set time interval is greater than or equalto the set threshold value, determining that the network element state is a lost state. According to the invention, by setting the time interval and the number of times, the network element can be prevented from sending a large number of messages, and the signaling load of the network element is reduced, thereby avoiding the generation of signaling storms.

The method and device related to the wireless communication technology field, and particularly relate to a method and device for managing the terminal. The method and device of the invention can solve a problem in a prior art that a load of a core network can be increased to cause a signaling storm with increasing of a terminal quantity of machine types is solved. A DSC functional entity can perform management on EPs in a cluster after obtaining authorization of the core network, wherein the DSC function entity is connected to each EP of a corresponding cluster; because the DSC function entity can manage the EPs in the cluster, the load on the core network is not increased after the terminal quantity of the machine types is increased, and the signaling storm caused by overload of the core network can be avoided.

The invention discloses a method for dynamically controlling a channel allocating and scheduling strategy on a base station side based on satisfaction of user service experiences. The method comprises the following steps that (A) service types of user services are determined according to characteristics of the user services; (B) control channel resources of the corresponding types are allocated to the user services according to the service types; (C) corresponding types of scheduling modes are used for the user services according to the service types. The invention further discloses base station equipment using the method.

The invention discloses a positioning processing method and device. The method comprises the steps that a mobile terminal receives a positioning request, wherein at least one mobile distance demand is carried in the positioning request; and the mobile terminal judges whether to report a current position of the mobile terminal or not at least according to whether the distance between the current position and a position reported at the last time satisfies the mobile distance demand or not. Through application of the method and the device, the problem existing in a positioning report of the prior art is solved, the occurrence of a signal storm is avoided, and the network stability is improved to a certain degree.

Embodiments of the present invention provide a trunking communication method, device, scheduler, terminal, and system. The method includes: sending a group establishment notification message according to a group establishment request message, where the group establishment notification message includes a group identification of the group to be established and a temporary mobile group identification TMGI of a multicast channel of the group to be established, where the TMGI is Assigned by the scheduler, on the multicast channel corresponding to the TMGI, multicast group data is sent. In the method of the embodiment of the present invention, when a group is established, the TBCP connection message of the call burst control protocol is not unicast to the group users, which not only reduces the group establishment delay, avoids the generation of signaling storms, but also saves Scheduling system resources to improve the reliability of cluster communication.

The present invention provides a cell switching method and an optical line terminal, and relates to the communication field. In a scene of using a passive optical network (PON) to bear a return business of a micro base station, and when a UE switches the cells, the signaling interaction of switching or reselection among the UE, the base station and a core network is avoided, thereby substantially reducing the number of the signaling interaction, and relieving the burdens of the core network. The cell switching method comprises the steps of using the optical line terminal to receive a migration demand message; according to the identifiers of a source base station and a destination base station, querying a pre-stored base station management table, and determining whether the switching of the UE is a local relevant switching business; recording the identifiers of all local lower band base stations in the base station management table, and using the local lower band base stations to carry out the return businesses with the core network equipment via the optical line terminal; if the optical line terminal determines that the switching of the UE is the local relevant switching business, forwarding the migration demand message to the destination base station, so that the destination base station is convenient to distribute wireless channel resources to the UE.

The embodiment of the invention provides a cell reselection method and system, a base station transceiver and a base station controller. The method comprises the following steps: receiving at least two messages of a value indicating specific physical quantity from the base station controller, wherein the specific physical quantity indicates an idle user terminal in a cell to select the target cell; and changing the value of the specific physical quantity according to the value of the specific physical quantity indicated by each message of the at least two messages so that the value of the specific physical quantity respectively reaches the value of the specific physical quantity indicated by each message in different times, and the idle user terminals in the cell selects an adjacent cell in batches according to the value of the specific physical quantity. Base on the above technical scheme, the cell reselection of numerous user terminals can be effectively avoided, the occurrence of signaling storms and signaling congestions can be effectively prevented, the network performance reduction caused by signaling storms is avoided, and the network performance can be further improved.

The present invention relates to a VoLTE service recovery method, system and device. In this method, after confirming at the calling side P-CSCF that the calling side PCRF itself or its route fails, the calling side P-CSCF can be invoked to send the first message containing the calling side PCRF failure information to the calling side UE. A message, so that after receiving this message, the UE can autonomously initiate corresponding fault contingency measures to restore the VoLTE session service. Compared with the recovery process of the VoLTE session service in the existing 3GPP protocol specification, the method provided by the embodiment of the present invention changes the signaling transmission process in the recovery process, and can directly send the fault information to the UE so that the UE can perform the service spontaneously Recovery, so as to reduce the number of nodes passed through when the fault information is forwarded, reduce transmission delay, avoid signaling storms caused by inconsistent processing capabilities of each node, and ensure that VoLTE session services can return to normal as soon as possible.

The invention provides a technical scheme of sensor network group mobility management, which comprises steps as follows: when a sensor network node moves, an access network gateway corresponding to the sensor network node determines whether the sensor network group of the node moves, and requires a control device at the network side to carry out position updating on the network gateway corresponding to the sensor node in the sensor network group; and the network gateway carries out local position updating according to the confirmation message of the control device, and updates the addressable information of the sensor node in the sensor network group corresponding to the sensor network as well as the mapping relationship between the addressable information in the access network. The technical scheme implements mobile management on the sensor network group on the basis of the network side, does not need to implement related mobile management signaling on the sensor node, and is applicable to sensor nodes with limited power consumption and capacity.

The present invention provides a cell switching method and an optical line terminal, and relates to the communication field. In a scene of using a passive optical network (PON) to bear a return business of a micro base station, and when a UE switches the cells, the signaling interaction of switching or reselection among the UE, the base station and a core network is avoided, thereby substantially reducing the number of the signaling interaction, and relieving the burdens of the core network. The cell switching method comprises the steps of using the optical line terminal to receive a migration demand message; according to the identifiers of a source base station and a destination base station, querying a pre-stored base station management table, and determining whether the switching of the UE is a local relevant switching business; recording the identifiers of all local lower band base stations in the base station management table, and using the local lower band base stations to carry out the return businesses with the core network equipment via the optical line terminal; if the optical line terminal determines that the switching of the UE is the local relevant switching business, forwarding the migration demand message to the destination base station, so that the destination base station is convenient to distribute wireless channel resources to the UE.

The invention provides a trunked communication system, monitoring terminals and a joining method thereof. The joining method comprises the steps that when a monitoring terminal located in a current cell detects paging information from a network side, a cluster joining periodic value C is obtained from the paging information; when the monitoring terminal detects that a cluster is activated, the cluster is monitored, and a random value T is randomly selected from 0 to C; and the monitoring terminal launches a cluster joining process in a delayed mode to the network side according to the random value T. According to the joining method, the monitoring terminal launches the cluster joining process in the delayed mode to the network side according to the random value T, cluster joining moments of the monitoring terminals are evenly distributed in time to the greatest extent, signalling storm caused by a plurality of monitoring terminals joining a cluster at the same time is avoided, and therefore normal operation of a trunked communication service is guaranteed.

The invention discloses a method and device for determining the state of a network element, which receives a request message sent by the network element, and the request message includes at least one of a registration request message, a subscription request message, an update service request message, and a notification confirmation request message, If the request message is not received within the set time interval, and the number of times the request message is not received within the set time interval is greater than or equal to the set threshold, it is determined that the state of the network element is disconnected. By setting the time interval and The number of times can prevent the network element from sending a large number of messages, reduce the signaling load of the network element, and thus avoid the occurrence of signaling storms.

The invention belongs to the field of LTE communication, particularly relates to a method, a system and a device for receiving wireless broadband cluster data service by an idle-state called cluster terminal, and aims to solve the problems that a non-speaking-right user in an RRC idle state receives data packets discontinuously in a cross-cell manner and signaling storm is generated due to retransmission of lost data packets through a special bearer. The method comprises the following steps: after cell reselection, whether data packet loss exists or not is judged based on a PDCP serial numberof the last packet of valid data received by a non-speaking right user in a source cell and a PDCP serial number of a first packet of valid data received by a target cell; if so, a PRACH preamble corresponding to the lost data packet is obtained and the PRACH preamble is sent to the base station side of the target cell; and the base station side retransmits the lost data packet to the user according to the PRACH preamble. According to the invention, the continuity of receiving data packets is ensured, the signaling storm of an air interface is avoided, and the utilization rate of air interfaceresources is improved.