Abstract: A modulation mapping method and device for Discontinuous Transmission (DTX) bits are provided. The method includes: receiving binary symbols from a downlink physical channel; replacing symbol values of DTX bits in the binary symbols with symbol values of non-DTX bits, to obtained updated binary symbols; and performing modulation mapping on the updated binary symbols. Using the DTX bits to replicate the non-DTX bits, the DTX bits are supplied to a receiving end as redundant information of the non-DTX bits, such that the performance for demodulating the non-DTX bits by the receiving end is improved. In addition, when the binary symbols on one branch are all DTX bits, modulation mapping is performed on the binary symbols on the same branch and then a real value 0 is output. That is, when the input symbols on only one branch are all DTX bits, the transmission channel for this branch may be closed down alone, and thus the system transmission power is lowered.

Abstract: A data transmission method in an enhanced CELL_FACH state, a network system, and a corresponding device are provided. The method includes the following steps. A radio transceiver receives information indicating a capability category of a UE. The radio transceiver acquires the capability category of the UE according to the information indicating the capability category of the UE. The radio transceiver performs data transmission to or from the UE according to the capability category of the UE. Since the information indicating the capability category of the UE is sent to the radio transceiver during the enhanced CELL_FACH data transmission, the radio transceiver performs the data transmission based on the capability category of a target UE, instead of the lowest capability category of the UE, thereby increasing the data transmission rate in the enhanced CELL_FACH state.

Abstract: A signal encoding method and device and a method for encoding a joint feedback signal are provided. The signal encoding method includes the following steps. When two carriers are configured with multiple-input and multiple-output (MIMO), Hybrid Automatic Repeat Request-Acknowledgement (HARQ-ACK) signals of the two carriers are combined into a joint feedback signal. The joint feedback signal is mapped into a codeword according to a predetermined mapping relationship between signals and codewords. Therefore, through the method for combining and encoding feedback signals of two carriers for transmission on a code channel in a dual cell (DC)-MIMO mode, bit error ratio (BER) and detection error cost are decreased, power overhead is saved, and a cubic metric (CM) value of the system is not affected, thereby enhancing the performance of the system.

Abstract: A method and apparatus for encoding feedback signals is provided. The method includes: encoding feedback signals of three carriers to output a bit sequence; and transmitting the bit sequence on a High Speed-Dedicated Physical Control Channel (HS-DPCCH). The step of encoding the feedback signals of the three carriers may specifically include: mapping the feedback signals of the three carriers into a codeword, in which the codeword can be selected from a codebook, and codewords in the codebook satisfy a particular code distance relationship. The method for jointly encoding feedback signals of three carriers in a Ternary Cell (TC) mode is provided. Feedback signals are transmitted over a single code channel. Therefore, power overhead is reduced, and system performance is improved.

Abstract: A method and system for processing correction field information are provided. The method includes: receiving a packet, and obtaining a first correction value carried by the packet; obtaining first time information and second time information; obtaining a second correction value according to the first correction value and the first time information; setting the second correction value in the packet; setting the second time information in the packet; obtaining third time information and fourth time information; obtaining a third correction value according to the second correction value, the second time information, the third time information, and the fourth time information; and setting the third correction value in the packet. The processing of the time information and the processing of the correction field information are performed with a set of processing mechanism, and the implementation is simpler.

Abstract: A method for implementing a predetermined operation in device management, being based on a DM system defined by OMA, includes: sending by the device management system a second predetermined operation based on a trigger condition to a terminal device and storing by the terminal device the received second predetermined operation; and obtaining by the terminal device from itself the second predetermined operation and executing the second predetermined operation when the trigger condition is satisfied. The present invention also discloses an apparatus for implementing a predetermined operation in device management.

Abstract: A sequence distributing and sequence processing method and apparatus in a communication system are provided. The sequence distributing method includes the following steps of: generating sequence groups including a number of sequences, the sequences in the sequence groups are determined according to the sequence time frequency resource occupation manner which is supported by the system; distributing the sequence groups to cells. The method avoids the phenomenon that signaling transmission is needed to distribute the sequences to the cells for different time frequency resource occupation manner, and saves in so far as possible the wireless network transmission resource occupied during the process of distributing the sequences through distributing the sequence groups comprising a number of sequences to the cells.

Abstract: A method for establishing a hierarchical network with Backbone Provider Bridges includes: dividing the network into a plurality of layers, and partitioning each layer into at least one domain; each domain assigning a service tag for itself; a local domain sending a mapping request including a user type ID to a further domain in the same layer; the further domain in the same layer returning a service tag corresponding to the user type ID to the local domain; the local domain establishing and saving a mapping relationship; and edge devices of each domain learning MAC addresses. Further, a system and device having the same are also provided in the disclosure.

Abstract: A method for realizing many to many protection switching operation of ring network including: determining information of a switch request of M:N protection switching of the ring network, a destination node of the switch request, a source node of the switch request, a flag of long or short path, a status of bridging and switching, a channel number of protected working channel, and utilization condition of protection channels; carrying the information in a signaling and transferring it on the ring network; upon receipt of the signaling, performing the M:N protection switching of the ring network by a ring network node according to the information in the signaling. Therefore, the format of APS protocol signaling provided in this invention includes the information necessary for protection switching. This invention also provides an effective transmission approach of APS protocol signaling for protection switching.

Abstract: A system for line powering includes at least one office-end PSU, one standby PSU and one power switching unit. The office-end PSU provides power for a group of subscriber lines in a centralized manner. The power switching unit monitors the power supply status of the office-end PSU and controls the switching between the office-end PSU and standby PSU. In embodiments of the invention, different rectifier/boost circuits and different step-down circuits need not be set for each pair of subscriber lines between the office-end PSU and the remote device. When an office-end PSU fails to supply power, the standby PSU can be switched over quickly to supply power for the remote device, which cuts down the cost for designing the office-end PSU and the standby PSU while ensuring the reliability of power supply for the remote device.

Abstract: A method of ensuring call processing for an intelligent user, including: upon receiving a call, judging, by a first Service Switching Point (SSP), whether traffic between the first SSP and a Service Control Point (SCP) is abnormal; if the traffic is abnormal, turning off, by the first SSP, intelligent triggers located in itself and related to the call, and performing an ordinary call connection; otherwise, performing an intelligent call connection, and terminating the process. In the embodiments of the present invention, normal communications can be ensured between intelligent users, even if the traffic between the SSP and the SCP is abnormal.

Abstract: The invention discloses a method for acquiring MBMS access information comprising: in a modification period, upon receiving an MBMS access information message transmitted from a network a UE initiating a corresponding procedure according to its state; if completing the corresponding procedure successfully, the UE stopping receiving a further MBMS access information messages; if not completing the corresponding procedure successfully the UE continuing acquiring further MBMS access information messages. The method facilitates the UE to automatically control MBMS access information acquiring procedure, and further reduces energy consumption of the UE to the maximum extent.

Abstract: The invention discloses a method for implementing Calling Tapping at Flash, which includes the steps of: when there is a new voice message for a user, actively initiating an SIP message carrying the description information of the voice message by a Voice Mail Application Server; sending the SIP message to the user terminal or the home network device of the user by the Voice Mail Application Server, and notifying the user by the user terminal or the network device; converting the SIP message into an inter-exchange signaling message in CS domain and transmitting it to the CS domain where the user accesses by a Media Gateway Control Unit (MGCU), and notifying the user by a switching control unit in the CS domain in accordance with the prompt means of Calling Tapping at Flash of the user. The invention also discloses a communication system for implementing Calling Tapping at Flash service.

Abstract: A charging method in One Number Links You (ONLY) service includes: delivering information of simultaneous ringing numbers bonded with an ONLY number to a Service Switching Point (SSP) by a Service Control Point (SCP) of an Intelligent Network when the SCP receives a request for calling the ONLY number; initiating a call to the simultaneous ringing numbers and detecting an off-hook-and-answering number among the simultaneous ringing numbers by the SSP; and calculating charges of the off-hook-and-answering number after the call is terminated. With the charging method provided, accurate charging between an ONLY number and its bonded simultaneous ringing numbers can be implemented.

Abstract: A ranging method and system for passive optical network, and an optical network unit are provided. The ranging method includes: sending an initial ranging signal to a splitter loop-back device and recording a current sending time as a first time; receiving a loop-back ranging signal from the splitter loop-back device, and determining whether the loop-back ranging signal is a return signal of the initial ranging signal; if the loop-back ranging signal is a return signal of the initial ranging signal, recording a current receiving time as a second time; and obtaining ranging information by calculating a difference between the first time and the second time, and performing a ranging on the basis of the ranging information.

Abstract: System and method for negotiating device information and device thereof are disclosed by the various embodiments of the present disclosure. The method includes the processes as follows: sending, by a network entity initiating a data synchronization process, a data synchronization initialization request carrying the identifier of the network entity initiating a data synchronization process to a destination network entity of the data synchronization process; accessing, by the destination network entity of the data synchronization process, the network entity for storing device information according to the identifier, acquiring the device information corresponding to the identifier according to the stored corresponding relation and the stored device information, and sending out a response to the network entity initiating the data synchronization process.

Abstract: A method and device for improving clock stability are provided. The method includes: determining whether a difference between a current sender timestamp (ST) and a current receiver timestamp (RT) is a mutated value; pre-processing the ST and RT, if the difference between the ST and RT is a mutated value; acquiring a service clock according to the pre-processed ST and RT; and sending time division multiplex (TDM) data according to the service clock. Through the embodiments of the present disclosure, a packet delay variance (PDV) may be smoothed, the impairment of the PDV on clock recovery may be reduced, the quality of the clock recovery may be improved, and the problem of clock synchronization may be solved through the mutation processing on the timestamps.

Abstract: The method includes: receiving a first Non Return to Zero (NRZ) data signal and a synchronous clock signal, and performing Return to Zero (RZ) processing to generate a first complementary RZ data signal pair; receiving a second NRZ data signal and a synchronous clock signal, and performing RZ processing to generate a second complementary RZ data signal pair; and modulating the first complementary RZ data signal pair and the second complementary RZ data signal pair on light to generate an RZ-Differential Quadrature Phase Shift Keying (RZ-DQPSK) optical signal. Through the method and device, RZ processing are performed on the NRZ data signals to generate the complementary RZ data signal pairs, and the complementary RZ data signal pairs are modulated on the light, thereby reducing the cost and the insertion loss of the entire device, lowering the requirements for input optical power and reducing the complexity of loop circuit control.

Abstract: A method for indicating discontinuous data scheduling includes receiving discontinuous reception (DRX) indication information on an Iur interface; and sending discontinuous scheduling indication information to a base station according to the DRX indication information. A communication system and a radio network control device for implementing the method are also provided.

Abstract: A method for updating a key in an active state is disclosed according to the embodiments of the present invention. The method includes steps of: initiating a key update by a user equipment in the active state or a network side when a pre-defined condition is met; updating the key by the network side and the user equipment, and negotiating an activation time of the new keys. An apparatus for updating a key in an active state is also disclosed according to the present invention. With the present invention, the user equipment in an active state and the network side may actively initiate the key update procedure in different cases, thereby solving the problem concerning the key update for a session in an active state.