Patent application number | Description | Published |
20090047949 | METHOD, SYSTEM AND MSC FOR LOAD REALLOCATION UNDER A-FLEX ARCHITECTURE - A load reallocation method operable under A-FLEX architecture includes: determining from configuration information, by an MSC, whether an MS needs to move out of the controlled range of the MSC; and transmitting, by the MSC, a registration request message to a BSC when determining that the MS needs to move out of the controlled range of the MSC, the BSC configured to instruct the MS to initiate a new registration so as to register with a new MSC. In cases where the loading balance changes when a service is ongoing, after the MSC completes the service, the MS is required to initiate a new location registration to a new MSC so that the loading of the present MSC may be reduced as soon as possible and the loading across the MSCs may be rebalanced after connection is established. The disclosure also provides a load reallocation system and an MSC operable under the A-FLEX architecture. | 02-19-2009 |
20090147754 | USER EQUIPMENT, CALL CONTINUITY APPLICATION SERVER, AND NETWORK HANDOVER METHOD - A network handover method applicable to network handover in ringing/ring back tone (RBT) or call hold is provided. According to this method, in ringing/RBT, one party performs a session negotiation with an Other End Point (OEP) via a call continuity application server, and then sends an off-hook signal to the OEP via the call continuity application server after the negotiation succeeds. Further, a call continuity application server and a user equipment (UE) are provided. According to the present disclosure, in ringing/RBT or call hold, even if the network coverage is not good, the UE may also be handed over to another network through call continuity, so as to effectively prevent the UE from dropping a call in ringing/RBT or call hold and thus improve the conversation quality of the user. | 06-11-2009 |
20100011220 | AUTHENTICATION AND KEY AGREEMENT METHOD, AUTHENTICATION METHOD, SYSTEM AND DEVICE - An AKA method, and authentication method and related devices are disclosed so that a user card not supporting storing of a SQN can resist replay attacks during an AKA procedure. In an AKA method, a second device generates a fourth sequence number for a user according to system time of the second device if the second device determines that the fourth sequence number for the user is not stored in the second device and synchronizing a third sequence number of the user that is stored by a first device with the fourth sequence number by interacting with the first device. The second device and the first device may perform an anti-replay protection in authentication using the synchronized third sequence number and the fourth sequence numbers. In the AKA method, a terminal can generate a SQN based on the system time and a random number which makes the SQN value more random. Even if an attacker knows the time value or even controls the system time of the terminal, the attacker is unable to predict the SQN generated by the terminal so that a replay attack is improbable. The security is thus enhanced. | 01-14-2010 |
20120063420 | METHOD AND SYSTEM FOR CONTROLLING A CALL HANDOVER BETWEEN TELECOMMUNICATION NETWORKS - A method for controlling a call handover between telecommunication networks includes determining whether a User Equipment (UE), in communication with a first network, is engaged in a call attempt when the UE is to be transferred from the first network to a second network, if the UE is engaged in a call attempt, maintaining the UE communicating with the first network, and if the UE is not engaged in a call attempt, initiating the handover from the first network to the second network. | 03-15-2012 |
Patent application number | Description | Published |
20080286646 | Electrolytes for Lithium Ion Batteries and Their Fabrication Methods - Electrolytes for lithium ion batteries are provided. The electrolytes include lithium salts, organic solvents and additives. In particular, the additives include halogeno-benzene and/or its homologs, the S═O bond compounds, biphenyl and/or its homologs, phenylcyclohexane and/or its homologs, teraklylbenzenes, and di-cycladipate and/or its homologs. Lithium ion batteries using said electrolytes exhibit improved overcharging safety properties, high temperature storage stability properties and cycle life properties simultaneously. | 11-20-2008 |
20090042103 | ADDITIVE MIXTURE FOR ELECTROLYTE OF LITHIUM ION SECONDARY BATTERY AND ELECTROLYTE OF LITHIUM ION SECONDARY BATTERY COMPRISING THE SAME - An additive mixture of the electrolyte of lithium ion secondary batteries and the electrolyte of lithium ion secondary batteries including the said additive mixture, characterizing in that the additive mixture includes 0.5-95.4 wt % biphenyl based compound, 0.1-93.8 wt % cyclohexylbenzene based compound, 0.4-93.2 wt % vinylene carbonate, 0.5-96.5 wt % t-alkyl benzene based compound and 0.5-95.8 wt % ethenyl sulfonyl benzene, based on the whole weight of the additive mixture. | 02-12-2009 |
20090305130 | TYPE OF NON-AQUEOUS ELECTROLYTE - This invention relates to non-aqueous electrolytes, in particular, a non-aqueous electrolyte for lithium-ion secondary batteries. The electrolyte comprises regular organic solvents and electrolyte saline. The special characteristics are: the electrolyte also comprises mixed additives, said mixed additives comprising at least one of those of compound group A, at least one of those of compound group B, and one of those of compound group C wherein: compound group A are selected from inorganic saline including Li2CO3, Li2SO4, Li2 SO3, LiNO3; compound group B are selected from vinylene carbonate, propylene carbonate; and compound group C are selected from ES, PS, DMS, DES, DMSO. The weight ratio can be (Group I). | 12-10-2009 |
Patent application number | Description | Published |
20100195596 | Resource and admission control method and a resource and admission control sub-system - A resource and admission control method and a resource and admission control sub-system are provided in the present invention. The method is: the subscription information during the subscription process between a user and a network attachment sub-system including: an adaptive Quality of Service (QoS) parameter of a media type or a service, the adaptive QoS parameter representing the maximum value for the resource and admission control sub-system regulating the resource occupancy of the media type or the service; during the process of the resource and admission control, when the current resource cannot satisfy the service resource request initiated by the user, the resource and admission control sub-system judges whether to regulate the resource occupancy of the media type or the service to satisfy the resource request according to the adaptive QoS parameters of the various different media types or services included in the user session; in the case of the judging result being ‘yes’, the resource and admission control sub-system reduces the resource occupancy of the media type or the service with the adaptive QoS parameter from low to high according to the priority of the media type or the service and accepts the resource request, otherwise rejects the resource request. | 08-05-2010 |
20100333171 | A METHOD FOR SELECTING POLICY DECISION FUNCTIONAL ENTITY IN A RESOURCE AND ADMISSION CONTROL SYSTEM - The present invention discloses a method for selecting policy decision functional entity in the Resource and Admission Control System. The method includes that: for resource and admission control in the PULL mode, after the Transport Resource Control Function Entity (TRC-FE) receives a resource request message from the Customer Premises Equipment (CPE) or after the Policy Enforcement Function Entity (PE-FE) receives a transport layer signaling sent by CPE, if the TRC-FE or PE-FE is interacting with more than one Policy Decision Functional Entities (PD-FEs), the TRC-FE or the PE-FE may select a PD-FE according to the stored identification information of PD-FE or statically configured PD-FE, and send a resource decision request message to the selected PD-FE. With the application of the present invention, in resource and admission control in the PULL mode, after receiving the resource request initiated by CPE through the transport layer signaling message, the TRC-FE or PE-FE may select the exact PD-FE to implement the resource reservation process, thereby resolving the problem in prior art that during the resource and admission control process the TRC-FE or PE-FE can not select the exact PD-FE to send resource decision requests. | 12-30-2010 |
20110138235 | Method and system for reporting the policy installation failure - A method and a system are provided for reporting policy installation failures in the field of communications. The method and system enable the policy decision functional entity (PD-FE) to accurately obtain detailed information of policy installation failures of the policy enforcement functional entity (PE-FE), thus enhancing the efficiency of sending the next policy for installation. The method includes: when the installation of a policy sent from the PD-FE to the PE-FE is failed, the PE-FE generates a feedback message to be sent to the PD-FE, and the feedback message includes the error reason of the policy failed in installation. | 06-09-2011 |
20110138237 | Feedback method and processing system for policy installation failures - A feedback method and a processing system for policy installation failures are applied in communication technical field, which is favorable for an Access Resource Admission Control Function (A-RACF) to accurately grasp the detailed information of policy installation failure enforced by the Resource Control Enforcement Function (RCEF), therefore the efficiency of downwardly sending the policies for installation next time is improved. The method includes: when the installation of the policies downwardly sent from the A-RACF to the RCEF is failed, the RCEF generates a feedback message to be sent to the A-RACF, wherein the feedback message includes error reasons of the policy installation failures. | 06-09-2011 |
20110145389 | METHOD AND POLICY ENFORCEMENT FUNCTIONAL ENTITY FOR IMPLEMENTING QUALITY OF SERVICE REQUEST INFORMATION - The present invention discloses a method and policy enforcement functional entity (PE-FE) for implementing quality of service (QoS) request information. The method comprises the following steps: a PE-FE sends a policy decision functional entity (PD-FE) a QoS request message including predetermined parameters which are used to represent the QoS request information of the transport layer. The technical solutions mentioned above enable the QoS request information of the transport layer to be accurately represented, and implement the resource request process in the pull mode. | 06-16-2011 |
20110145416 | Method and system for resource admission control - A method and system for resource admission control are disclosed. During a resource request process in the scenario of customer roaming, a visited location PD-FE sends a modified QoS policy or acceptable QoS policy information to a home location PD-FE when it cannot accept a resource request sent by the home location PD-FE, and the home location PD-FE makes a resource policy decision again and requests resources again according to the modified QoS policy, or when the home location PD-FE receives the next service request, it makes a resource policy decision according to the QoS policy information acceptable to the visited location PD-FE and sends a resource request to the visited location PD-FE. Both resource requests in the two cases are made based on the resource condition of the visited location PD-FE, therefore the visited location PD-FE generally can accept the requests after receiving them, thereby improving the success possibility of resource requests. | 06-16-2011 |
20110261690 | Method and system for resource and admission control in an NGN home network - The present disclosure discloses a method and system for resource and admission control in an NGN home network. Through setting up an Rh interface between the Policy Decision Function Entity of the NGN service provider and the Home Gateway Enforcement Function Entity in the customer premise network, the Policy Decision Function Entity of the service provider makes the resource and admission control policy for the customer premises network and sends down the policy rules to the customer premises network through the interface. Thus the quality of service of the network that the users use could be ensured well. | 10-27-2011 |
20120158936 | Resource and Admission Control Method - The present invention provides a resource and admission control method applied to nomadicity and wholesale scenarios, which clarifies an interaction process between a PD-FE of a NGN home operator/NGN retail service provider and a PE-FE of a NGN home operator/NGN retail service provider, puts forward a resource request process, resource modification process and resource release process of the resource and admission control method applied to the nomadicity and wholesale scenarios, and solves problems existing in the related art. | 06-21-2012 |
20120275407 | Method and System for Pull Mode Resource and Admission Control under Wholesale Scene - A method for resource and admission control in a pull mode and a system thereof are provided, and the method includes: after receiving a resource request sent by an application function entity, a resource and admission control platform of a retail service provider making a quality of service resource grant decision to this resource request according to user subscription information and a policy rule of the retail service provider, and if the resource request is admitted, sending the resource request to the resource and admission control platform of the wholesale service provider, which makes a quality of service resource grant decision to this resource request, and sends a result of the quality of service resource grant decision to the resource and admission control platform of the retail service provider which sends the received result of the quality of service resource grant decision to the application function entity. | 11-01-2012 |
20130035094 | Method and System for Implementing Single Radio Voice Call Continuity - Disclosed in the present invention are a resource policy decision method and system in a roaming scenario, for improving the accuracy of the resources allocated to the user. The method includes: after having received an available resource query message from a mobility management and control function MMCF entity, a resource and admission control function RACF entity of a visited network acquiring degrade information of current service of a user from a resource and admission control platform, and according to a candidate access network list in the available resource query message, checking current availability of resource of each candidate access network in the candidate access network list, so as to obtain resource availability information of each candidate access network; the RACF entity of the visited network carrying out resource decision according to the degrade information, the resource availability information and user information of the user. | 02-07-2013 |
20130137426 | Method and System for Resource Policy Decision in Roaming Scene - Disclosed in the present invention are a resource policy decision method and system in a roaming scenario, for improving the accuracy of the resources allocated to the user. The method includes: after having received an available resource query message from a mobility management and control function MMCF entity, a resource and admission control function RACF entity of a visited network acquiring degrade information of current service of a user from a resource and admission control platform, and according to a candidate access network list in the available resource query message, checking current availability of resource of each candidate access network in the candidate access network list, so as to obtain resource availability information of each candidate access network; the RACF entity of the visited network carrying out resource decision according to the degrade information, the resource availability information and user information of the user. | 05-30-2013 |
20130160073 | Method and system for resource and admission control of home network - The disclosure provides a method for resource and admission control of a home network, the RACF of an NGN retail service provider formulates an initial policy rule according to a resource request after receiving the resource request sent by an SCF; a CPN performs authorization check on one or more resource requests after receiving them, each of which includes the initial policy rule and is sent by an RACF of a respective NGN retail service provider, formulates a final policy rule after the authorization check is passed, and executes the final policy rule. The disclosure further provides a system for resource and admission control of a home network correspondingly, since a CGPE-FE executes corresponding operation according to the decision result of an HPD-FE, the disclosure can avoid resource control errors such as resource desynchrony or resource inconsistence, and can improve system stability. | 06-20-2013 |
20150215780 | Method and device for transmitting data - A method and device for data transmission are provided. The method includes: a TWAG receives a fixed network gateway identity transmitted by a fixed network gateway; and, the TWAG transmits to the fixed network gateway, on the basis of the fixed network gateway identity, a downlink data packet that P-GW transmitted to the TWAG. The present invention implements correct routing and forwarding of a downlink data service, thus allowing for the achievement of the effect that smooth deployment of a terminal UE service is ensured. | 07-30-2015 |
20150223041 | Accounting Method and Device - An accounting method and device are disclosed in the disclosure. The method includes that: a BNG transmits a second Accounting-Request message to an AAA server after receiving a first Accounting-Request message from an AC, wherein the first Accounting-Request message is used for activating the BNG to execute an accounting operation; and the BNG transmits a second Accounting-Stop message to the AAA server after receiving a first Accounting-Stop message from the AC, wherein the first Accounting-Stop message is used for activating the BNG to stop the accounting operation. By the disclosure, the problem that the function division of the AC and the BNG is not yet clear during the accounting operation in the related art is solved, so that functions of the AC and the BNG are clearly divided during the accounting operation, an accounting operation flow is further made clear, and the accounting efficiency is improved. | 08-06-2015 |
20150237594 | METHOD AND SYSTEM FOR NOTIFYING ACCESS NETWORK POSITION INFORMATION - A method and a system for notifying access network location information are provided. The method includes that in a PMIPv6 architecture, a Mobile Access Gateway (MAG) sends a circuit ID to a Local Mobility Anchor (LMA) by carrying the circuit ID in a proxy binding update message; and in a GTP architecture, a local GTP peer sends a circuit ID to a correspondent GTP peer by carrying the circuit ID in a Create Session Request message, a Modify Bearer Request message or a Delete Session Request message. In the disclosure, an MAG can notify an LMA of access network location information of a UE in a PMIPv6 architecture, and a GTP peer can notify a correspondent GTP peer of access network location information of a UE in a GTP architecture. | 08-20-2015 |
20150282226 | Method and system for mobile user to access fixed network - Disclosed is a method for a mobile user to access a fixed network, comprising: after a BNG and a TWAG establish a multi-protocol label switching (MPLS) tunnel and/or pseudowire, or a layer 2 tunneling protocol (L2TP) tunnel and/or session, the TWAG establishes a GPRS tunneling protocol (GTP)/proxy mobile internet protocol (PMIP) connection with a mobile network gateway according to user information, and acquires the address and service parameter of the user; and the TWAG transmits the service parameter of the user to the BNG via an MPLS control message or an L2TP control message. Also disclosed is a system for a mobile user to access a fixed network. The present invention standardizes user QoS security after the introduction of a TWAG, and can provide a user with better communication service, thus improving user experience. | 10-01-2015 |
20150304246 | BNG-pool-based response method, system and related device - A Broadband Network Gateway (BNG) pool based responding method is described, including that a BNG device in the BNG pool receives a user access request, and the BNG device responds according to the user access request and a delayed response strategy corresponding to the BNG device. A BNG device, a user equipment and a BNG pool based responding system are also described. Thus a BNG device in a BNG pool can respond to a user access request according to a delayed response strategy, then a user equipment can take a BNG device corresponding to a first response message received as a server, thereby being capable of ensuring system stability. | 10-22-2015 |
Patent application number | Description | Published |
20120224324 | ELCTRONIC DEVICE WITH HEAT AND DUST DISSIPATION MECHANISM - An electronic device includes a housing defining at least one outlet, a number of electronic components accommodated in the housing, at least one fan comprising an intake side and an opposite exhaust side, and a pipe defining a center hole and a number of small holes in the peripheral wall. The pipe includes a number of segments each being mounted adjacent to one of the electronic components. The exhaust side of the fan faces the outlet, and the intake side is coupled to the pipe for communicating with the center hole. When the fan is actuated, heat generated by the electronic components and dust retained within the housing is drawn into the pipe through the small holes and the center hole, and are finally exhausted out of the housing through the at least one outlet. | 09-06-2012 |
20130162540 | INPUT DEVICE WITH DIFFERENT INPUT FUNCTIONS - A multifunctional input device includes a keyboard body defining a recess, a flexible touch panel movably received in the recess of the keyboard body, and a switching sensor. The switching sensor generates a first mode signal or a second mode signal. Only the keyboard body works when the switching sensor generates the first mode signal, and only the flexible touch panel works when the switching sensor generates the second mode signal. | 06-27-2013 |
20130222291 | TOUCHSCREEN AND ELECTRONIC DEVICE USING SAME - A touchscreen for an electronic device includes an input surface, a number of temperature sensors, and a processor connected to the temperature sensors. The temperature sensors senses temperatures of positions on the input surface and outputs corresponding sensing signals to the processor. The processor receives the sensing signals and determines whether the input surface is touched based on the sensing signals. | 08-29-2013 |
20130238317 | VOCABULARY LOOK UP SYSTEM AND METHOD USING SAME - A vocabulary look up in an electronic apparatus includes a voiceprint acquiring module, a matching module, a reminding module, and a spelling module. The voiceprint acquiring module analyzes sounds collected by an audio collector to acquire voiceprints from the collected sounds. The matching module retrieves vocabulary information of a word associated with an acquired voiceprint in a lookup table. The reminding module displays a pop-up window to get the user to spell out the word to be looked up when more than one word is associated with the acquired voiceprint in the lookup table. The spelling module acquires the voiceprints of the letters constituting the word to be looked up to determine and displays the word to be looked up. | 09-12-2013 |
20130243249 | ELECTRONIC DEVICE AND METHOD FOR RECOGNIZING IMAGE AND SEARCHING FOR CONCERNING INFORMATION - A method for recognizing an image of an object and searching for concerning information is provided. The method includes: capturing an image of an object; analyzing the image to extract characteristic from the image, and generating a request for searching for further information associated with the image; searching for further information associated with the image from a searchable database according to the request and the extracted characteristic of the image; and displaying all of the information which has been found. A related electronic device is also provided. | 09-19-2013 |
20150229744 | Method and Device for Service Analysis - Embodiments of the present invention provide a method and device for service analysis. The method for service analysis of the present invention includes obtaining deep packet inspection DPI information of a terminal, where the DPI information of the terminal is obtained by performing DPI on a first data packet transmitted between the terminal and a service provider; obtaining call history record CHR information of the terminal, where the CHR information of the terminal is obtained by performing call recording on an air interface link established between the terminal and a base station controller; and performing, according to the DPI information of the terminal and the CHR information of the terminal, analysis on a service transmitted between the terminal and the service provider. | 08-13-2015 |
Patent application number | Description | Published |
20110009120 | Domain Transferring Method for Single Radio Voice Call Continuity - A domain transferring method for the single radio voice call continuity, a UE accesses via an LTE/SAE network, and sets up an IMS session anchored at a VCC AS with a remote node; when an S-IWF receives a handover request used to transfer the session to make the session access from a CS domain, the method comprises: the LTE/SAE network sends a handover command to the UE, the UE sends a handover complete message to a target access device after receiving the handover command; after the UE sends the handover complete message, or after the S-IWF receives the handover complete message, a release session notification message is sent to a VCC AS; after receiving the session release notification message, the VCC AS releases the session resources of the session. | 01-13-2011 |
20110009121 | METHOD FOR USER EQUIPMENT REALIZING HANDOVER ACROSS ACCESS NETWORKS IN ACTIVE STATE - A method for user equipment realizing handover across access networks in active state includes: during the process for a user equipment in active state handing over from an evolved packet system to a universal mobile telecommunications system or a global system for mobile communications, an evolved universal mobile telecommunication system radio access network notifies the user equipment whether this handover is a handover due to an incoming call of a circuit switched domain before informing the user equipment of performing the handover or when informing the user equipment of performing the handover; the user equipment will send a paging response message to a mobile switching center/visitor location register after handing over to the universal mobile telecommunications system or the global system for mobile communications if this handover is a handover due to an incoming call of the circuit switched domain. By using the present invention, it will help to the successful establishment of the circuit switched call after handover, and it can avoid the waste of circuit switched network resources. | 01-13-2011 |
20110165856 | EMERGENCY SERVICE HANDOVER METHOD - The present invention discloses an emergency service handover method which is applied in a single radio voice service system. A UE has established an emergency session between an IMS domain and an emergency call center via LTE/SAE network, wherein the emergency session is anchored to a service centralization and continuity application server, SCC AS, at a visited location. When MSC obtains information that the UE having established the emergency session needs to be switched to a CS domain, an enhanced MSC initiates a session establishment request to the visited SCC AS for performing a handover from the IMS domain to the CS domain on a service layer. | 07-07-2011 |
20120178466 | Home Base Station Access Method, Home Base Station System and Home Base Station Access Point - The present invention discloses a home NodeB access method comprising: during initialization, a home NodeB access point selecting a home NodeB gateway connected to one of core networks which the home NodeB access point has right to access as a serving home NodeB gateway; the home NodeB access point registering in the serving home NodeB gateway, registering user information with the serving home NodeB gateway after receiving a non-access layer message sent from a user equipment, and forwarding the non-access layer message to the serving home NodeB gateway; and the serving home NodeB gateway forwarding the non-access layer message to a core network corresponding to a network access identifier of the user equipment according to the identifier after receiving the non-access layer message; and the core network interacting with the user equipment to complete access of the user equipment; so as to achieve share of the home NodeB. | 07-12-2012 |
20140177530 | Access method and system and mobile intelligent access point - An access method is disclosed. The method includes: a mobile intelligent access point is attached to a core network and acquires an address of a 3rd Generation Partnership Project Authentication, Authorization and Accounting (3GPP AAA) server of a User Equipment (UE) from the core network; the UE requests the mobile intelligent access point and the 3GPP AAA server selected by the mobile intelligent access point for the UE to perform an Extensible Authentication Protocol (EAP) authentication on the UE; the UE initiates an access process to the mobile intelligent access point and acquires an Internet Protocol (IP) address of the UE; and the mobile intelligent access point selects a Packet Data Network Gateway (P-GW) for the UE and establishes an underlying access tunnel for the UE. Correspondingly, an access system and a mobile intelligent access point are further disclosed. With the disclosure, network authentication can be implemented to facilitate an operator to control the number of access users and to guarantee the network of the operator. Furthermore, a broadband mobile network is taken as a backhaul network, so as to reduce the reliability on a fixed network and improve the utilization of the broadband mobile network. | 06-26-2014 |
20140189838 | Access method,and system and mobile intelligent access point - An access method is disclosed. The method includes: a mobile intelligent access point accesses a network through at least two wireless technologies; a User Equipment (UE) establishes a connection with the mobile intelligent access point; and the UE acquires access authentication from the network through the mobile intelligent access point. An access system and a mobile intelligent access point are further disclosed. With the disclosure, network authentication can be implemented to facilitate an operator to control the number of access users and to guarantee the network of the operator. Furthermore, a broadband mobile network is taken as a backhaul network, so as to reduce the reliability on a fixed network and improve the utilization of the broadband mobile network. | 07-03-2014 |
20140204758 | Multi-mode intelligent access method, device and system - A multi-mode intelligent access method, device and system are disclosed. The method includes that: a multi-mode mobile intelligent access device is added into a communication network; and the multi-mode mobile intelligent access device employs a way including flow mobility between different access networks, so as to enable a terminal to access a core network gateway through multiple kinds of access networks. By means of the multi-mode intelligent access technology of the disclosure, a terminal can use multiple kinds of access networks at the same time, and the flow mobility between the different access networks can be implemented, so as to utilize wireless bandwidths optimally and improve the transmission speed while reducing the cost of a mobile terminal and enhancing service experience for a subscriber. | 07-24-2014 |
20150358795 | Browser emergency call method, system, and mobile device in real-time communication - Disclosed is an emergency call method for a real-time communication browser. A signaling server acquires location information of a user who makes an emergency call through a browser, determines an emergency communication server connected between the signaling server and a PSAP nearest to the user according to the location information, and sends an emergency service request to the emergency communication server or returns an emergency call request response to the browser that then sends an emergency service request to the emergency communication server. The emergency communication server forwards the emergency service request to the PSAP. An emergency call system for a real-time communication browser and a mobile device are disclosed. Through solutions of the disclosure, an emergency communication server may be deployed or a mobile communication network may be selected to initiate a browser emergency call, so as to implement a cross-region emergency call for an RTCWEB system. | 12-10-2015 |