30results about How to "Solve the problem of dropped calls" patented technology

The invention discloses an address distribution method and an address distribution device, which are applied to a system containing a dynamic host configuration protocol (DHCP) server and a DHCP client side. The address distribution method includes that: the DHCP server receives contract extension requests sent by the DHCP client side; the DHCP server judges whether addresses requesting for contract extension are contained in a conflict lease recorded by itself, the DHCP server returns a DHCP-negative acknowledge (NAK) message to the DHCP client side and collects the addresses requesting for contract extension in a DHCP address pool on yes judgment; and the DHCP server selects addresses from the DHCP address pool for performing matching when the DHCP server receives address acquiring requests sent by the DHCP client side later. On premises of not adding additional memory expense, the address distribution method and the address distribution device solve problems of disorder in address distribution and even dropping of constant users caused by lease loss of stand-alone devices.

The invention relates to the field of remote teaching and especially relates to a remote learning system. The remote learning system comprises a collecting device, a cloud terminal, a content dispatching network system and a terminal, wherein the collecting device comprises a video collecting device and an audio collecting device; the video collecting device is used for collecting the video information of the teacher having a lesson and sending to the cloud terminal; the audio collecting device is used for collecting the video information of the teacher having a lesson and sending to the cloud terminal; the content dispatching network system is arranged between the cloud terminal and the terminal; the content dispatching network system comprises a plurality of service nodes; the content dispatching network system is used for dispatching the video information and audio information received by the cloud terminal to the service nodes; the terminal is connected with the optimal service node according to the distances away from the service nodes and the loading conditions of the service nodes. The remote learning system is capable of solving the problems of network jam, delaying, blocking or offline of the present remote learning system when a large amount of users are online.

The present invention provides a method for preventing user disconnecting in static migration, wherein the method in the executing course of static migration comprises the following procedures: receiving radio link control RLC sequence number information transmitted by a service radio network controller SRNC corresponding with user equipment UE by a drifting radio network controller DRNC; and processing the protocol data unit PDU sequence transmitted by UE by DRNC with the RLC sequence number information. The invention also provides a system for preventing user disconnecting in static migration and a radio network controller RNC. The application of the invention can settle the problem of user disconnecting when PDU sequence is transmitted by UE to DRNC and increase the user experience in the period when the RLC sequence number information sustained by UE and DRNC is not consistent in the static migration.

The invention provides a content synchronization method, a WLAN (Wireless Local Area Network) device and a vehicle-mounted mobile Internet device. The method is applied to the vehicle-mounted mobile Internet device, and comprises steps: when the WLAN device works in a wireless access point (AP) mode, WLAN signals are scanned; if a service area identifier for a synchronization network configured by the AP is scanned, broadcasting signals for the synchronization network are detected; if the broadcasting signal strength is detected to exceed a threshold, a terminal STA mode connected in the wireless network is switched; and content synchronization is started. Thus, on the basis of not increasing the hardware cost, the problem of user disconnection in the case of content synchronization of the vehicle-mounted mobile Internet device can be solved.

The invention provides a service management method and a service management system. The method comprises that: a master control board establishes a cell on a first baseband board; when a terminal accesses the cell for a service, the master control board establishes a private communication context associated with the cell on a second baseband board, so that the terminal performs the service by the private communication context; the master control board judges whether the first baseband board fails or not; and when the first baseband board fails, the master control board reserves the private communication context established on the second baseband board, so that the terminal continues performing the service by the private communication context. By the method and the system, the problem of call drop caused by a failure of the baseband board in the prior art is solved, the call stability of a user is ensured, the performance of a NodeB system is improved and user experiences are improved.

The invention relates to a method for refreshing region, which comprises: a, user terminal sends region refresh request; b, wireless network controller receives the request and feedbacks refresh confirmation to the user terminal; c, user terminal via the confirmation sends answer message to the controller; wireless network controller receives the answer message to manage the user terminal and complete the refresh process. In one region refresh process, the region refresh confirmation feedback from wireless network controller carries same mark.

The invention discloses a network coverage hole call drop processing method, a micro node B and relevant equipment, and aims to solve the problem of coverage hole call drop and increase the capacity of the micro node B. The method comprises the following steps that: the micro node B receives measurement information reported by user equipment (UE), and judges whether actual measurement information matched with the measurement information exists in an actual measurement information set or not; if the actual measurement information matched with the measurement information exists, the micro node B determines a target cell from adjacent cells according to the measurement information or the actual measurement information matched with the measurement information; and the micro node B performs a switching negotiation with a target node B, and sends a cell switching command to the UE if the negotiation succeeds in order that the UE is switched from a service cell to the target cell. The invention also provides the micro node B and the relevant equipment. The micro node B and the relevant equipment have functions of implementing the method.

The invention discloses a digital repeater and a downlink signal processing method thereof. The method comprises the following steps of: S1, receiving a downlink signal transmitted by a base station and separating a downlink radio-frequency signal from the downlink signal; S2, detecting the downlink radio-frequency signal and extracting a base station signal of a base station with highest signal intensity; S3, generating a pseudo-pilot signal and a pseudo-synchronous signal, wherein the pseudo-pilot signal and the pseudo-synchronous signal are respectively the same as a corresponding pseudo-pilot signal and a corresponding pseudo-synchronous signal in the extracted base station signal; S4,combining the pseudo-pilot signal and the pseudo-synchronous signal with the downlink radio-frequency signal to form a selectively amplified downlink radio-frequency signal; and S5, processing the selectively amplified downlink radio-frequency signal and transmitting a processed downlink signal to a mobile terminal. The method reduces pilot pollution, eliminates a self-excitation loop, makes engineering installation and debugging become simpler, and also solves the problem of low call completion rate and handoff drop call.

Radio frequency remote method, device and systems are disclosed. The RRU is added on the basis of the original coverage area of the base station system, the RRU accesses the original base station system by using the radio bearer between the UE and the base station system. The RRU can be deployed movably or fixedly according to actual needs, and forms complementary coverage area with the original base station system, supplements the coverage blind spot area, and solves the call dropping problem after the UE enters the coverage blind spot area of the original base station system. The radio frequency remote method comprises the following steps: a first radio frequency remote unit RRU receives a communication address sent by a first user equipment UE, wherein, the communication address is obtained after the first UE accesses a base station system; according to the communication address, the first RRU establishes a new cell using a radio bearer between the first UE and the base station system as a transmission link, the base station system comprising a base station, a baseband processing unit BBU and a second RRU.

The invention provides a voice service processing method and device, a storage medium and an electronic device. The method comprises the steps that a measurement request is sent to a first terminal and/or a second terminal, and the measurement request is used for indicating the first terminal and/or the second terminal to measure the signal quality of a network allowed to be registered, wherein atleast one piece of same identity recognition information exists between the first terminal and the second terminal, and an ongoing voice service exists between the first terminal and the network sidenetwork element; information resources for the voice service are transferred according to the measurement report, and the measurement report comprises at least one of a first measurement report thatthe first terminal performs measurement according to the measurement request and a second measurement report that the second terminal performs measurement according to the measurement request. Throughadoption of the voice service switching method and device, the problem of voice service call drop caused by incapability of realizing network switching in time when a user needs to perform network switching on the voice service in related technologies is solved, and the effect of ensuring the voice service of the user is achieved.

The present invention relates to an arrangement, a communication network node and a method of saving radio resources during handover in a communication network system comprising a plurality of communication network nodes (15a, 15b, 15c) communicating with one or more user equipments (18). Each network node (15a, 15b, 15c) is serving at least one cell (19) through and in which the user equipments (18) are moving. The method and arrangement is based on: collection of long term handover statistics (1); selective triggering of Multiple Cell Preparation (2); definition of a Secondary Target Cell List (3); exclusion from the Secondary Target Cell List of cells rarely used (4); preparation of the cells on the Secondary Target Cell List for handover (5).

The invention discloses a voice data transmission method and related equipment. Voice data can be transmitted through a first wireless network; when the signal strength of the first wireless network does not meet a preset strength condition, triggering a network request switching operation from the first wireless network to a second wireless network, the signal strength of the second wireless network meeting the preset strength condition; in response to the network request switching operation, pausing reporting of pilot frequency measurement information; and performing network switching from the first wireless network to the second wireless network based on a pause operation so as to transmit the voice data through the second wireless network after the network switching is completed. According to the invention, the method can effectively solve the problem of call drop caused by the switching of the pilot frequency internal evolution base station in the process of switching from the first wireless network to the second wireless network from the source through controlling the reporting of the pilot frequency measurement information, and improves the voice call experience of a user.