Huawei Technologies Co., Limited

Yuqing Zhao

Lei Zhang

Jiayin Zhang

Bin Wang

Zhidong Bai

Chunxi Zhu

Chenghui Peng

Yi Tong Wang

Yuhua Chen

Jianjun Wu

Xiaocheng Liu

Guangzhu Zeng

Meixin Lin

Zhen Xu

Yi Wang

Defu Liao

Huailin Wen

Chenglin You

A method and a terminal device for keeping a subscriber identity module card in a standby state, including receiving an enabling request to enable dual standby of a first subscriber identity module (SIM) card and a second SIM card in the terminal device, wherein the first SIM card is software-implemented, and wherein the second SIM card is hardware-implemented, accessing a first network for the first SIM card by invoking a third-party interface of an operating system of the terminal and using a data file associated with the first SIM card, and implementing a dual standby of the first SIM card and the second SIM card.

Method and terminal for keeping subscriber identity module card in standby state

A method and a terminal device for keeping a subscriber identity module card in a standby state, where the method for keeping a subscriber identity module card in a standby state includes receiving, by a terminal device, an enabling request, where the enabling request is used for requesting simultaneous standby of a first subscriber identity module card and a second subscriber identity module card; invoking a third-party invocation interface provided by an operating system of the terminal device; performing interaction with a subscriber identity module card control module, so as to complete a network access process of the first subscriber identity module card on the basis of a data file of the first subscriber identity module card; and keeping the first subscriber identity module card and the second subscriber identity module card in a standby state at the same time according to the enabling request.

Disclosed are a test apparatus and a testable asynchronous circuit. The test apparatus includes: a first input end, a second input end, a third input end, a fourth input end, a fifth input end, a first selector, a second selector, a D flip-flop, and a first output end. The first input end is configured to input a data signal or a test result of a previous circuit under test; the second input end is configured to input a test excitation signal or a test result that is output by a previous test apparatus; the third input end is configured to input a clock signal; the fourth input end is configured to input a selection signal; and the fifth input end is configured to input a selection signal.

Test apparatus and testable asynchronous circuit

A D2D link discovery method, which includes: obtaining, by UE, a neighboring UE list from a server, where the neighboring UE list includes related information of M neighboring UEs, and the related information is information required by the UE to determine whether a D2D connection to corresponding neighboring UE can be established by using a multiple-antenna technology; extracting, by the UE, the related information of the M neighboring UEs from the neighboring UE list, and determining N neighboring UEs from the M neighboring UEs based on the related information of the M neighboring UEs, where the N neighboring UEs are UEs to which D2D connections can be established by the UE by using the multiple-antenna technology; and performing, by the UE based on the multiple-antenna technology, link mapping between the UE and the N neighboring UEs to obtain respective links corresponding to the N neighboring UEs.

D2D link discovery method

The present invention discloses a method and a relevant apparatus for achieving localized roaming of a mobile terminal. In the present invention, the mobile terminal sends real SIM card information to apply for a virtual SIM card to obtain a corresponding mobile terminal number of a roaming region, and registers user information to activate the virtual SIM card to serve as a calling party or a called party, so as to set up a called communication connection of a real SIM card. The mobile terminal applies for a virtual SIM card from a communication network of a roaming country to obtain a corresponding mobile terminal number of the roaming region through allocation, so that the user does not need to purchase a new SIM card in the roaming region, thereby saving the charges for purchasing the SIM card, ensuring a convenient operation and satisfying the demand of the user.

Method and apparatus for setting up communication connection

A board includes: a baseband unit, multiple transmitters, multiple receivers, a multi-antenna array, a correction transceiver, a correction calculation unit, a bidirectional coupler, and a combiner-splitter. The bidirectional coupler is configured to couple radio frequency signals output by the multiple transmitters and then transmit the coupled radio frequency signals to the combiner-splitter, and to couple receiver correction reference signals obtained by performing division by the combiner-splitter and then send the coupled receiver correction reference signals to the multiple receivers; and the combiner-splitter is configured to combine transmitter radio frequency signals coupled by the bidirectional coupler and then transmit the combined transmitter radio frequency signals to the correction transceiver, and to divide a receiver correction reference signal sent by the correction transceiver and then send receiver correction reference signals obtained by performing division to the coupler. Accuracy of channel reciprocity correction of a transmitter and a receiver can be ensured.

Board, wireless communications system, and method for channel correction inside or outside board

A method and a terminal device for keeping a subscriber identity module card in a standby state are provided. The method for keeping a subscriber identity module card in a standby state includes receiving, by a terminal device, an enabling request, where the enabling request is used for requesting simultaneous standby of a first subscriber identity module card and a second subscriber identity module card; invoking a third-party invocation interface provided by an operating system of the terminal device; performing interaction with a subscriber identity module card control module, so as to complete a network access process of the first subscriber identity module card on the basis of a data file of the first subscriber identity module card; and keeping the first subscriber identity module card and the second subscriber identity module card in a standby state at the same time according to the enabling request.

Method and terminal device for keeping subscriber identity module card in standby state

A method for activating a soft SIM card, a method for a soft SIM card to join network, a terminal and a network access device are provided. The method for activating includes: acquiring information on a terminal in which a soft SIM card is located of a bounding object corresponding to the soft SIM card; generating first key information according to information of the soft SIM card and the information on the terminal in which the soft SIM card is located of the bounding object and according to a predefined encryption policy; comparing whether the first key information is consistent with preset key information corresponding to the soft SIM card, if consistent, allowing an activation of the soft SIM card, so as to enable a user to perform network communication via the soft SIM card. The technical solutions are beneficial for improving the application security of the soft SIM card.

Method for activating soft SIM card, method for soft SIM card to join network, terminal and network access device

The present invention provides a signal transmission method for a multiple-user multiple-input multiple-output system, includes: in a signal sending time slot, sending a signal to user terminals through each antenna via preset subcarriers in a signal sending time slot; sending a first public information signal to the user terminals through each antenna via the preset subcarriers in a public information sending time slot. According to the technical solution provided by the present invention, the problem that signal transmission delay of a multiple-user multiple-input multiple-output system where a channel changes rapidly is too long is solved.

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Hangzhou, China

Yuqing Zhao