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42results about How to "Implement retransmission" patented technology

Method for monitoring and sending paging messages and paging terminal, and base station and terminal

The invention provides a method for monitoring and sending paging messages and paging a terminal, and a base station and the terminal. The method for monitoring the paging messages includes that the terminal generates a first paging monitoring recognition message; the terminal determines the paging superframe requiring monitoring of the terminal according to the first paging monitoring recognition message and monitoring the paging message on the paging superframe.
Owner:ZTE CORP

Wireless data retransmission method

The invention relates to the technical field of wireless communication, in particular to a wireless data retransmission method, which comprises the following steps: S100, master equipment receives a data packet, slave equipment does not successfully receive the data packet, and the slave equipment sends a receiving failure signal; S200, after receiving the receiving failure signal of the slave device, the master device maintains the current carrier frequency and broadcasts the received data packet in the next time slot, and if the slave device receives the data packet of the master device, the slave device sends a receiving success signal in the next time slot; and if the slave device does not receive the data packet of the master device, the slave device sends a receiving failure signal in the next time slot, and the step S200 is executed again. According to the wireless data retransmission method provided by the invention, wireless data retransmission can be realized more stably and reliably, and the system design requirement can be reduced.
Owner:WU QI TECH INC

Method, equipment and system for transmission control on user equipment

The invention aims to provide a method, equipment and a system for transmission control on user equipment. The method includes: when the user equipment forms dual connectivity with a corresponding macro eNB and a small eNB, determining transmission status information corresponding to a DRB (data radio bearer) established with the user equipment through the user equipment, sending the transmission status information to the macro eNB, then determining transmission configuration information corresponding to the user equipment through the macro eNB according to the transmission status information, and performing transmission configuration on the user equipment according to the transmission configuration information. Compared with the prior art, the method, equipment and system has the advantages that on the basis of dual connectivity, PDU needing transmission or retransmission is acquired according to the transmission status information of the user equipment or the macro eNB performs traffic control on the user equipment according to transmission status information, so that connection establishment and switching of the user equipment, the macro eNB and the small eNB are guaranteed, reliability in data transmission is improved, efficiency of resource allocation of the system is improved, power consumption of the system is lowered and the like.
Owner:ALCATEL LUCENT SHANGHAI BELL CO LTD +1

Wireless communication method, system and device thereof

The invention discloses a wireless communication system comprising a relay node and a base station, wherein the relay node is used for determining the uplink subframe configuration and the downlink subframe configuration of a return trip link; a downlink subframe m of the return trip link receives the uplink transmission order of the base station; the uplink subframe n (n=m+k, k is more than 0) of the return trip link sends the uplink data according to the uplink transmission order, wherein k represents the number of subframes. The base station sends the uplink transmission order to the relay node on the downlink subframe m of the return trip link and receives the uplink data transmission of the relay node on the uplink subframe n of the return trip link. The invention can realize the safety and reliability communication of the base station and RN.
Owner:DATANG MOBILE COMM EQUIP CO LTD

Data transmission method and equipment

The invention discloses data transmission method and equipment. The data transmission method comprises the following steps of: acquiring the importance indication information of a subsequent data packet of a current data packet, wherein the importance indication information is used for indicating the importance of the subsequent data packet; acquiring the HARQ (Hybrid Automatic Repeat reQuest) maximum retransmission times of the subsequent data packet which corresponds to the importance indication information; and carrying out physical layer retransmission on the subsequent data packet according to the HARQ maximum retransmission times. The embodiment of the invention can reduce the retransmission time delay.
Owner:HUAWEI TECH CO LTD

Retransmission method, device and system for packet loss

InactiveCN108282277AImplement retransmissionSolve the problem of not being able to retransmitError prevention/detection by using return channelPacket lossData transmission
The invention provides a retransmission method, a retransmission device and a retransmission system for packet loss, which relate to the field of data transmission and can solve the problem that existing multicast packet loss cannot be retransmitted. The specific technical solution comprises the following steps of: receiving a data packet sent by a sending device through a multicast link, and storing the data packet in a receiving queue; detecting whether the data packet in the receiving queue is continuous; sending a retransmission request that includes an identifier of a retransmitted data packet to the sending device through a unicast link when detecting that the data packet in the receiving queue is discontinuous; and receiving the retransmitted data packet sent by the sending device through the unicast link. The invention is used for data retransmission.
Owner:XIAN WANXIANG ELECTRONICS TECH CO LTD

Control method, control system, transmitting end device and receiving end device for hybrid automatic repeat request

The invention discloses a control method for a hybrid automatic repeat request. The method comprises the step of transmitting information of NACK (Negative Acknowledgments) and UL Grant (Uplink Grant) when a base station receives wrong uplink decoded data from an RS (relay station). The UL Grant information comprises control indication information for indicating the base station as a subframe of a repeat resource that the RS allocates. The invention also discloses a control system and a transmitting end device for a hybrid automatic repeat request. A setting unit is used for setting the control indication information which is used for indicating the base station as the subframe of the repeat resource that the RS allocates in the UL Grant information. The invention also comprises a receiving end device for a hybrid automatic repeat request, and the RS realizes transmission of uplink data according to the indication of the control indication information. The employment of the control method, the control system, the transmitting end device and the receiving end device all for a hybrid automatic repeat request can control an uplink asynchronous hybrid automatic repeat request of a relay link.
Owner:ZTE CORP

Fax system and method based on satellite mobile communication

The invention discloses a fax system and method based on satellite mobile communication. The fax system comprises a first fax machine, a satellite mobile terminal, a mobile communication satellite, agateway station subsystem, a core network, a relay media gateway, a public switched telephone network (PSTN) and a second fax machine. The faxing method comprises the following steps: a data fax method between two first fax machines and a data fax method between the first fax machines and a second fax machine. By using the fax method, the fax service application problem based on a satellite mobilecommunication network can be solved, the fax service interconnection and intercommunication problem of the satellite mobile communication network and a traditional PSTN network is solved, and alternate transmission of voice services and fax services is achieved. In conclusion, the system has the advantages of being complete, high in intelligent degree, convenient to use and the like.
Owner:军事科学院系统工程研究院网络信息研究所

Data packet transmission method, sending end device and receiving end device

The embodiment of the invention provides a data packet transmission method, a sending end device and receiving end devices. The method comprises the following steps: after sending first batch of raw data packet to each receiving end device, receiving data packet loss information reported by each receiving end device; according to a lost packet set of each receiving end device, determining a total lost data packet set of all the receiving end devices; according to the total lost data packet set, determining the number of times for retransmitting a coded data packet; according to the number of times and the number of sent raw data packet, improving Vandermonde matrix to encode the coded data packet and determining the coded data packet retransmitted each time; and based on the determined coded data packet retransmitted each time, retransmitting corresponding coded data packet to each receiving end device when transmitting each time. By adopting the data packet transmission method, the sending end device and the receiving end device provided in the embodiment, the lost data packet can be retransmitted efficiently; and the timeliness and the reliability of the data transmission of a multicast communication system can be improved.
Owner:AGRICULTURAL BANK OF CHINA

Data retransmission method, data receiving method, terminal and network equipment

An embodiment of the invention provides a data retransmission method, a data receiving method, a terminal and network equipment. The method at the terminal side comprises the steps: transmitting a random access request message of a random access flow to the network equipment, wherein the random access request message comprises a pilot frequency and a physical uplink shared channel (PUSCH); receiving a random access response message issued by the network device; resending the PUSCH in the random access request message according to the random access response message. According to the method disclosed in the solution of the invention, the retransmission of the PUSCH in the MsgA in the RACH can be realized, and transmission reliability of the data is improved.
Owner:CHINA MOBILE COMM LTD RES INST +1

Data transmission method and system based on OFDMA mode

The invention discloses a data transmission method and system based on an OFDMA mode. The method comprises the following steps of: sequentially transmitting to-be-retransmitted data packets corresponding to the I frame, the P frame and the B frame, so that the retransmission of the data packets which are not successfully transmitted is realized. The importance degrees of the I-frame data packet, the P-frame data packet and the B-frame data packet are sequentially reduced; the priorities are also reduced in sequence; according to the method, transmission is carried out according to the importance degree of the data types, the important data types (I-frame data packets) are firstly transmitted, and then the second important data types are sequentially transmitted, so that the data transmission quality of a network system is improved, data resources are allocated and transmitted in a classified manner, and the data transmission efficiency of the system is also improved.
Owner:浙江云朵网科技股份有限公司

Data transmission method of reader-writer, data receiver and storage medium

The invention discloses a data transmission method of a reader-writer, a data receiver and a storage medium. The method comprises the steps that a receiving end receives a data packet from a sending end, wherein the data packet comprises a first specific time sequence; the receiving end judges whether a previous data packet of the data packets is received or not according to the first specific time sequence; if the last data packet is not received, the receiving end stores the first specific time sequence into a supplementary transmission buffer area; the supplementary transmission buffer area is scanned regularly, when it is determined that the supplementary transmission buffer area contains the specific time sequence with the storage duration larger than or equal to the timeout duration, a supplementary transmission command is sent to the sending end, wherein the supplementary transmission command contains the specific time sequence with the storage duration larger than or equal to the timeout duration. By adopting the mode, the receiving end does not need to send a receiving confirmation message once when the sending end sends a data packet, so the data interaction can be greatly reduced, the bandwidth can be saved, and the jamming is not easy to occur under the condition of large data volume. Meanwhile, retransmission of packet loss data can be realized.
Owner:深圳市成为信息股份有限公司

Distributed network equipment software intelligent upgrading method and equipment

The embodiment of the invention discloses a distributed network equipment software intelligent upgrading method and equipment. The method and the equipment are used for solving the problems of low efficiency, high cost, inconvenience in unified management, need of manual execution and high maintenance difficulty of distributed network equipment during system software upgrading in the prior art. The scheme comprises the following steps: publishing version upgrading information of specified software in a specified database; obtaining version upgrading information in the specified database through non-master control equipment; judging whether the local specified software needs to be upgraded or not according to the local version information of the specified software and the version upgrading information through the non-master control equipment; if yes, returning an upgrade confirmation message to the specified database through the non-master control equipment; detecting an upgrade confirmation message through the main control equipment, and issuing software upgrade data corresponding to the specified software in the specified database; acquiring the software upgrading data through the non-master control equipment, and upgrading the local specified software after the software upgrading data passes the verification.
Owner:浪潮思科网络科技有限公司

Uplink/downlink retransmission method based on time division duplex system in wireless communication and system thereof

The invention discloses an uplink / downlink data retransmission method and a system thereof. In the downlink data retransmission method, the mapping relationship between three uplink physical frames of an uplink transmission block and three downlink physical frames of a downlink transmission block is configured in advance; a base station uses the downlink physical frame of the downlink transmission block to send one or a plurality of data sub-packets to one or a plurality of terminals; the terminal demodulates the data sub-packets received; based on demodulation results, the terminal sends a reply message used for indicating whether the data sub-packets are successfully demodulated through the corresponding uplink physical frame among the three uplink physical frames of the uplink transmission block after the downlink transmission block; the base station demodulates the reply message and judges whether the data sub-packets are successfully demodulated according to the reply message; and for the data sub-packets unsuccessfully demodulated, the base station sends the retransmitted data sub-packets through the corresponding downlink physical frame in next downlink transmission block.
Owner:ZTE CORP

Method for monitoring and sending paging, terminal, base station and storage medium

The invention discloses a method for monitoring, sending paging and paging a terminal, a base station and the terminal. The paging monitoring method comprises the steps that a terminal generates first paging monitoring identification information; and the terminal determines a paging superframe needing to be monitored by the terminal according to the first paging monitoring identification information, and monitors paging on the paging superframe.
Owner:ZTE CORP

Uplink/downlink retransmission method and system based on wireless communication time division duplex system

The invention discloses a downstream data retransmitting method, which comprises the following steps: a mapping relationship between an upstream physical frame and a downstream physical frame is preliminarily configured; a base station sends one or more data sub-packages to one or more terminals by using the downstream physical frame of downstream transmission blocks; the terminal demodulates the received data sub-packages of the downstream physical frame; according to the demodulating result and the mapping relationship, the terminal sends a response message that represents whether the data sub-package demodulation succeeds by using the corresponding upstream physical frame of upstream transmission blocks after the downstream transmission blocks; the base station demodulates the response message and judges whether the data sub-package demodulation succeeds according to the response message, and for the downstream physical frame with failed data sub-package demodulation, the base station sends a retransmitting data sub-package of the data sub-package with failed demodulation in the next corresponding downstream physical frame of the downstream transmission blocks. The invention further provides a downstream data retransmitting system, an upstream data retransmitting method and an upstream data retransmitting system.
Owner:ZTE CORP

Uplink/downlink retransmission method and system based on wireless communication time division duplex system

The invention discloses upstream and downstream data retransmitting methods and systems, and in the downstream data retransmitting method, a mapping relationship between an upstream physical frame and a downstream physical frame group is preliminarily configured; wherein, each downstream physical frame group comprises three adjacent downstream physical frames, and each downstream transmission block is equally divided into three downstream physical frame groups; a base station sends one or more data sub-packages to one or more terminals by using the downstream physical frame group of the downstream transmission blocks; the terminal demodulates the received data sub-packages of the downstream physical frame group; according to the demodulating result and the mapping relationship, the terminal sends a response message that represents whether the data sub-package demodulation succeeds by using the corresponding upstream physical frame of upstream transmission blocks after the downstream transmission blocks; the base station demodulates the response message and judges whether the data sub-package demodulation succeeds according to the response message, and for the downstream physical frame group with failed data sub-package demodulation, the base station sends a retransmitting data sub-package of the data sub-package with failed demodulation in the next corresponding downstream physical frame group of the downstream transmission blocks.
Owner:ZTE CORP

Control method, control system, transmitting end device and receiving end device for hybrid automatic repeat request

The invention discloses a control method for a hybrid automatic repeat request. The method comprises the step of transmitting information of NACK (Negative Acknowledgments) and UL Grant (Uplink Grant) when a base station receives wrong uplink decoded data from an RS (relay station). The UL Grant information comprises control indication information for indicating the base station as a subframe of a repeat resource that the RS allocates. The invention also discloses a control system and a transmitting end device for a hybrid automatic repeat request. A setting unit is used for setting the control indication information which is used for indicating the base station as the subframe of the repeat resource that the RS allocates in the UL Grant information. The invention also comprises a receiving end device for a hybrid automatic repeat request, and the RS realizes transmission of uplink data according to the indication of the control indication information. The employment of the control method, the control system, the transmitting end device and the receiving end device all for a hybrid automatic repeat request can control an uplink asynchronous hybrid automatic repeat request of a relay link.
Owner:ZTE CORP

Transmission method for conversation data in group broad cast / broadcast service

This invention discloses a transmission method for conversation data in multicast service. After a communication terminal finds out there are conversation data in multicast service. After a communication terminal finds out there are conversation data that have not been received by it, it sends a re-sent request to a belonged wireless network controller, which receives the request to deliver the re-sent request carried with conversation information to belonged service support enter which fetches necessary repeat conversation data then to send a conversation data start information to the network controller, which receives the start information to feed back the data start to the support center to receive response and set up planar resource to re-transmit conversation data via the planar resource.
Owner:HUAWEI TECH CO LTD

Uplink/downlink retransmission method based on wireless communication time division duplexing system

The invention discloses an uplink / downlink data retransmission method, wherein a downlink retransmission method comprises the following treatments that: a mapping relationship between uplink physical frames and downlink physical frames is preset so as to make the first three downlink physical frames in a downlink transmission block correspond to a first physical frame in an uplink transmission block and make the last three downlink physical frames in the downlink transmission block correspond to a second physical frame in the uplink transmission block; a base station uses the downlink physical frames in the downlink transmission block to send one or more data sub-packages to one or more terminals; the terminals demodulate the received data sub-packages; based on the demodulation results and according to the preset mapping relationship, the terminals send reply messages in the corresponding uplink physical frames in the uplink transmission block after the downlink transmission block; the base station demodulates the reply messages and judges whether the data sub-packages are successfully demodulated or not according to the reply messages; and regarding the data sub-packages failingto be demodulated, the base station sends the retransmitted data sub-packages in the corresponding downlink physical frames in a subsequent downlink transmission block.
Owner:ZTE CORP

Method and system for downlink retransmission based on wireless communication time division duplex system

The invention discloses a method and a system for retransmitting downlink data. In the method for retransmitting downlink data, a mapping relation between downlink physical frames and uplink physical frames is preset; a base state uses a downlink physical frame of a current downlink transmission block to send one or more data subpackets; a terminal demodulates the received data subpackets of the downlink physical frame; based on the result of the demodulation and the mapping relation, the terminal sends a response message for representing whether the data subpackets are successfully demodulated through a corresponding uplink physical frame in a first uplink transmission block following the current downlink transmission block or a second uplink transmission block following the current downlink transmission block; and the base station demodulates the response message and judges if the data subpackets are successfully demodulated according to the response message, and for the data subpackets that are not demodulated, the base station sends retransmission data subpackets of the data subpackets that are not demodulated through a corresponding downlink physical frame in a first downlink transmission block following the current downlink transmission block or a second downlink transmission block following the current downlink transmission block.
Owner:ZTE CORP

A data packet transmission method, sending end device and receiving end device

The embodiment of the invention provides a data packet transmission method, a sending end device and receiving end devices. The method comprises the following steps: after sending first batch of raw data packet to each receiving end device, receiving data packet loss information reported by each receiving end device; according to a lost packet set of each receiving end device, determining a total lost data packet set of all the receiving end devices; according to the total lost data packet set, determining the number of times for retransmitting a coded data packet; according to the number of times and the number of sent raw data packet, improving Vandermonde matrix to encode the coded data packet and determining the coded data packet retransmitted each time; and based on the determined coded data packet retransmitted each time, retransmitting corresponding coded data packet to each receiving end device when transmitting each time. By adopting the data packet transmission method, the sending end device and the receiving end device provided in the embodiment, the lost data packet can be retransmitted efficiently; and the timeliness and the reliability of the data transmission of a multicast communication system can be improved.
Owner:AGRICULTURAL BANK OF CHINA

Uplink/downlink retransmission method and system based on wireless communication time division duplex system

The invention discloses upstream and downstream data retransmitting methods and systems, and in the downstream data retransmitting method, a mapping relationship between an upstream physical frame and a downstream physical frame group is preliminarily configured; wherein, each downstream physical frame group comprises two adjacent downstream physical frames, and each downstream transmission blockis equally divided into four downstream physical frame groups; a base station sends one or more data sub-packages to one or more terminals by using the downstream physical frame group of the downstream transmission blocks; the terminal demodulates the received data sub-packages of the downstream physical frame group; according to the demodulating result and the mapping relationship, the terminal sends a response message that represents whether the data sub-package demodulation succeeds by using the corresponding upstream physical frame of upstream transmission blocks after the downstream transmission blocks; the base station demodulates the response message and judges whether the data sub-package demodulation succeeds according to the response message, and for the downstream physical frame group with failed data sub-package demodulation, the base station sends a retransmitting data sub-package of the data sub-package with failed demodulation in the next corresponding downstream physical frame group of the downstream transmission blocks.
Owner:ZTE CORP

Uplink/downlink retransmission method and system based on wireless communication time division duplex system

The invention discloses upstream and downstream data retransmitting methods and systems, and in the downstream data retransmitting method, a mapping relationship between an upstream physical frame and a downstream physical frame group is preliminarily configured; wherein, each downstream physical frame group comprises two adjacent downstream physical frames, and each downstream transmission blockis equally divided into four downstream physical frame groups; a base station sends one or more data sub-packages to one or more terminals by using the downstream physical frame group of the downstream transmission blocks; the terminal demodulates the received data sub-packages of the downstream physical frame group; according to the demodulating result and the mapping relationship, the terminal sends a response message that represents whether the data sub-package demodulation succeeds by using the corresponding upstream physical frame of upstream transmission blocks after the downstream transmission blocks; the base station demodulates the response message and judges whether the data sub-package demodulation succeeds according to the response message, and for the downstream physical frame group with failed data sub-package demodulation, the base station sends a retransmitting data sub-package of the data sub-package with failed demodulation in the next corresponding downstream physical frame group of the downstream transmission blocks.
Owner:ZTE CORP
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