Huawei Technologies Co., Limited

Wenliang Liang

Lei Lu

Liang Gu

Bojie Li

Wei Zhang

Jianjun Wu

Haihua Shen

Liang Zhuang

Jinfang Zhang

Xianhui He

Chenghui Peng

Yuhua Chen

Yong Xie

Gang Huang

Dai Shi

Chengyan Feng

Ganghua Yang

Jianyong Li

Yuankui Zhao

Shougang Chai

Embodiments of this application provide a channel configuration method. The method includes: determining, by a base station, a quantity of system flows based on a random access channel detection result; configuring, by the base station, an uplink channel and a downlink channel based on the quantity of system flows, where the uplink channel is a radio frequency channel used for uplink transmission, and the downlink channel is a radio frequency channel used for downlink transmission; and transmitting, by the base station, data based on the configured uplink channel and the configured downlink channel. Therefore, while system transmission performance is ensured, a communication requirement can be flexibly met, and system processing resources and transmission resources can be saved.

Channel configuration method and base station

Embodiments of the present invention provide a signal processing method and apparatus. The method includes: performing M-way filtering on an input signal to obtain M filtered signals, performing extraction on M filtered signals separately to obtain M extracted signals, performing fast Fourier transform (FFT) on the M extracted signals separately to obtain M frequency-domain signals, and finally determining output signals according to the M frequency-domain signals. According to the embodiments of the present invention, signal filtering and extraction are performed and then FFT is performed.

Signal processing method and apparatus

The present disclosure provides a data format conversion apparatus and method, and a buffer chip. The data format conversion apparatus is disposed on the buffer chip in a memory; a control module is disposed for sending a control instruction to a conversion module when obtaining a data copy command; and a conversion module is disposed for completing data format conversion and storage address mapping on to-be-converted data according to the received control instruction. In this way, a prior-art problem of additionally occupying computing resources and computation time of an accelerated computation unit due to a data format conversion unit disposed in the accelerated computation unit is avoided, the amount of data transmission between a main memory and a device memory is reduced without additionally occupying computing resources, and the computation precision is ensured while the computation efficiency is improved.

Data format conversion apparatus and method and buffer chip

Embodiments of the present invention disclose an electronic device and a graphics processing unit card, which can improve data input and output capabilities. The electronic device includes a graphics processing unit card and a mainboard. The graphics processing unit card includes a main chip and M first PCIe interfaces electrically connected to the main chip, where M is an integer greater than or equal to 2. The mainboard includes a processing unit and M second PCIe interfaces connected to the processing unit, and the M second PCIe interfaces are respectively connected to the M first PCIe interfaces.

Electronic device and graphics processing unit card

Embodiments of the present invention provide a data transmission method and apparatus. ROHC packets that use a same Context ID are encapsulated into MAC PDU, wherein the MAC PDU is formed by a MAC PDU packet header and a MAC PDU payload. The Context ID of the ROHC packets is carried in the MAC PDU packet header, and the Context ID is not carried in the ROHC packets. The MAC PDU is sent. In this way, transmission resources are saved, and transmission efficiency is improved.

Data transmission method and apparatus

The present invention provides a data transmission method, apparatus and system, which relate to the field of the wireless network technology. The data transmission method provided in the embodiment of the present invention includes: acquiring a downlink data packet sent to a terminal, in which the downlink data packet does not have a high layer protocol stack header; sending the downlink data packet to the terminal through an air interface; Through the present invention, the data amount in the air interface transmission is reduced to a great extent, the efficiency of air interface transmission is substantially enhanced, and the air interface resource is saved, thereby facilitating the enrichment and development of wireless services and satisfying the demands of users. The present invention is applicable to a scenario of air interface transmission in a wireless network.

Data transmission method, apparatus and system

A method for obtaining feedback delay includes: obtaining a target time elapsed in a process from when a remote radio end receives uplink data sent from a user end to when the remote radio end sends out feedback information responsive to the uplink data to the user end, wherein the feedback information responsive to the uplink data is fed back by a processing node to the remote radio end; calculating a feedback delay by adding the target time and an air interface transmission propagation delay, wherein the air interface transmission propagation delay is a transmission time of the uplink data from the user end to the remote radio end; and configuring, by the processing node, an uplink hybrid automatic repeat request (HARQ) ACK/NACK feedback interval to be the feedback delay.

Method and apparatus for obtaining feedback delay

The AAA server generates and delivers a new HA-RK before expiry of the old HA-RK, thus eliminating the time gap between expiry of the old HA-RK and obtaining of the new HA-RK and making the MIP registration seamless. In the system, if the remaining lifetime of the old HA-RK is less than or equal to the lifecycle of the MSK in the EAP process, a new HA-RK is delivered; otherwise, no new HA-RK needs to be delivered. If both a new HA-RK and an old HA-RK are valid on the network entity at a time, then only the old HA-RK applies and the new HA-RK is not active until expiry of the old HA-RK. Alternatively, both the new HA-RK and the old HA-RK are active concurrently, and are differentiated by an SPI.

Mobile internet protocol system and method for updating home agent root key

A mobile station (MS) reattaching method, an MS reattaching system, a gateway, and a base station (BS) are provided. The method includes: determining, according to mobility restriction information, whether an MS is allowed to access a target BS; and if the MS is allowed to access the target BS, returning a handover response (HO_Rsp) indicating that MS reattachment is allowed to the MS. An MS reattaching system, a gateway, and a BS are further provided. An access service network-gateway (ASN-GW) or a serving BS determines, according to mobility restriction information, whether a current target BS is an appropriate target BS to allow the MS to access, so as to satisfy the mobility restriction.

Mobile station reattaching method, system, gateway and base station

A communication method and a related apparatus for header compression by using an automatic retransmission mechanism are disclosed. The method comprises determining with a receive end parameters required for performing header compression and an ARQ through negotiation, constructing a lower-layer PDU that comprises header compression information, and sending the PDU to a receive end. By using methods provided in the embodiments of the present invention, combination of a header compression mechanism and an ARQ mechanism may be implemented, thereby improving header compression efficiency and accuracy, and saving air interface resources.

Communication method and apparatus for header compression

A method and system for generating and distributing a mobile IP key are provided. The method mainly includes the following steps. During the course of access validation or re-authorization and re-authentication, a sub-key between a mobile node (MN) and an authentication, authorization, and accounting (AAA) server is computed, and an authentication extension (AE) between the MN and the AAA server is computed according to the sub-key. The AE is carried in a mobile IP registration request or a binding update (BU) request initiated by the MN, a home agent (HA) requests the key from the AAA server according to the AE in the registration request or the BU request, and the AAA server distributes the key to the HA. By using the present invention, a PMIP-client can compute the AE between the MN and the AAA server (MN-AAA-AE) without the need of distributing the key between the MN and the AAA server.

Method and system for generating and distributing mobile IP key

A method determines mobility of a roaming user terminal. A visited access service network (ASN) authenticator receives an Access-Accept message sent from a visited network authentication, authorization and accounting (V-AAA) server. The authenticator determines a mobility access classifier of the terminal according to a mobility restriction policy of a visited ASN, and sends the mobility access classifier of the terminal to a base station (BS). A device for determining mobility of a roaming user terminal is also provided. With the method and device for determining mobility of a roaming user terminal, after the user terminal roams to a visited network with mobility restriction or to a network without mobility restriction from a network with mobility restriction, the mobility restriction type of the user terminal can be determined in time, and the visited network can acquire the mobility restriction information of the user terminal.

Method and device for determining mobility of roaming user terminal

A multicast broadcast service (MBS) management method, device, and system are provided, so that a service/content provision server is enabled to manage an MBS operated by the service/content provision server itself. The method includes: a universal service interface (USI) receives a management operation request message from a service/content provision server; the management operation request message is sent to a multicast and broadcast service (MCBCS) server/controller to enable the MCBCS server/controller to perform corresponding operations according to the management operation request message. The device includes a first receiving module and a second receiving module. Another device includes a receiving module and a request processing module. The system includes an MCBCS server/controller and a USI connected to the MCBCS server/controller in a communication mode.

Multicast broadcast service management method, device, and system

A method for authentication includes: a Gateway Mobile Station (G-MS) receives an authentication trigger message from a host, and sends the authentication trigger message to an authentication server through an Ethernet Convergence Sublayer (Eth-CS) to trigger authentication. A network system includes a G-MS, which is connected to a host and an authentication server in communicable mode. The G-MS is configured to: receive an authentication trigger message from the host and send the authentication trigger message to the authentication server through the Eth-CS. The authentication server is configured to: receive the authentication trigger message that the G-MS sends through the Eth-CS, and authenticate the host. A G-MS includes: a receiving unit, configured to receive an authentication trigger message from the host; and a sending unit, configured to send the authentication trigger message received by the receiving unit to the authentication server through the Eth-CS.

Method, device, and system for authentication

A method for generating and distributing MIP security key after Re-Authentication, including: an AAA Server generates an EMSK during a Re-Authentication process; the MS generate a new first MIP security key for the MS according to the EMSK, and replaces the corresponding old first MIP security key with the new first MIP security key; and a HA receives new second MIP security key information for the HA which is sent by the AAA Server actively, or requests from the AAA Server the new second MIP security key information for the HA, and replaces the corresponding old second MIP security key that is locally stored with the new second MIP security key that is sent by the AAA Server actively or requested from the AAA Server. The present invention ensures execution of MIP Registration process after Re-Authentication.

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Shanghai, China

Wenliang Liang