186 results about "Repetition Number" patented technology

A random access channel transmission method in which a user terminal selects a preamble pattern from among a plurality of known preamble patterns and transmits that preamble pattern to a base station, where that transmission method comprises: a step of dividing a cell into a plurality of areas, and setting one or more preamble patterns and the number of repetitions for transmitting the preamble pattern for each area; and a step wherein a user terminal that exists in an are close to the base station transmits a specified preamble pattern one time, and a user terminal that exists in an area far from the base station transmits another specified preamble pattern a plurality of times.

A control channel transmission method, transmission processing method, communication node and terminal communication node, said control channel transmission method comprising: determining, in accordance with predefined information, control channel transmission resources; repeatedly transmitting, multiple times, the control channel on the determined control channel transmission resources; said predefined information includes at least one of the following types of information: control channel repetition number, control channel type, service channel type and service channel start position. The present invention solves a technical problem existing in LTE systems, whereby a down-link control channel is not able to engage in repeated sending, and thus allows a network side, when coverage enhancement is needed, to engage in control channel repeated sending, in order to ensure that a terminal requiring enhanced coverage can correctly receive control information issued by a base station, thus ensuring the corresponding data transmission.

Disclosed is a method for determining handover of a mobile station by a mobile station in a mobile communication system. The method includes measuring a downlink reference signal intensity of a serving base station; determining to perform scanning for measurement of reference signal intensities of the serving base station and neighbor base stations, when the measured downlink reference signal intensity of the serving base station is less than a reference value, negotiating with the serving base station for a scanning period and the number of scanning repetitions, measuring the reference signal intensities of the serving base station and the neighbor base stations, and resetting the reference value when a reference signal intensity of the serving base station is greater than or equal to reference signal intensities of neighbor base stations.

A method of handling coverage enhancement for a user equipment (UE) of a wireless communication system includes determining whether the UE is in an enhanced coverage mode according to the number of repetitions of a downlink transmission based on which the UE successfully decodes a system information block (SIB); and performing an uplink transmission with repetitions or without repetitions based on whether the UE is in the enhanced coverage mode.

Provided is a wireless communication apparatus by which the maximum throughput can be obtained while satisfying required reception qualities in multicarrier communication. In the apparatus, a coding section (101) performs error correction coding to all of the plurality of resource blocks at a same coding rate, modulating sections (103-1 to 103-n) generate data symbols by modulating coding data for each of the resource blocks (1 to n), and repetition sections (104-1 to 104-n) repeat the data symbols inputted from the modulation section (103) for each of the resource blocks (1 to n) to generate a plurality of same data symbols. Namely, while the coding rate is same in all of the resource blocks, modulation system and the number of repetitions differ by resource block.

A method and apparatus for allocating resources for a machine type communication user equipment (MTC UE) in a wireless communication system is provided. A base station indicates a transport block size (TBS) directly, adapts a code rate according to repetition numbers across multiple subframes in a MTC physical downlink shared channel (M-PDSCH) for the MTC UE, and allocates resources for the M-PDSCH by using the indicated transport block size and the adapted code rate. The TBS may be determined based on a modulation and coding scheme (MCS) only.

A mobile station that wirelessly transmits to a base station by DS-CDMA a signal spread by multiplying a spreading code includes a chip-pattern generating unit that generates a predetermined chip pattern by performing chip repetition for a predetermined number of repetitions to a spreading chip sequence, and a multiplying unit that multiplies to a signal including the predetermined chip pattern generated by the generating unit a phase specific to the mobile station.

The invention provides a method, a device and a system for achieving resource scheduling. The method comprises the following steps: receiving a PDCCH (physical downlink control channel) command sent by a base station; acquiring the moment for applying resources according to the preset moment for activating the resources; and carrying out data transmission according to the resource instruction in the PDCCH command when the current moment is the moment for applying the resources, so as to achieve the resource scheduling. By presetting the moment for activating the resources, the moment for applying the resources is not related to the moment and repeating times for the base station to send the PDCCH command, so the operations for repeatedly overwriting are not required when the repeated PDCCH commands are received continuously. Therefore, the invention can achieve the resource scheduling of the base station on UE (user equipment) and reduce the time delay of the UE caused by repeated operations.

The invention relates to an android re-packed application detection method based on an application programming interface. The android re-packed application detection method based on the application programming interface comprises the following steps of firstly processing an application program file to obtain a smali code file; for each file folder, extracting the use situation of the application programming interface of android from smali codes, and counting frequency information; clustering through mutual comparison of the file folders, and utilizing the file folders with high similarity degree and more repetition numbers as a third party library; after removing the interference of the third party library, by utilizing the application program file as the unit, clustering program files with the high similarity degree; finally combining signing information of a writer, judging whether the re-package relationship exists in the application programs or not. By utilizing the technical scheme of the method provided by the invention, in application with a large-scale application market stage, re-packed applications can be automatically detected; the efficiency and the accuracy are very high.

The invention relates to a method and a system for synchronously inserting network time. The method comprises the following steps: S1, a client generating an NTP (Network Time Protocol) timestamp query information packet and sending the NTP timestamp query information packet to an optimal time server, wherein the optimal time server is a time server selected by the client according to an optimal time server algorithm; S2, the client receiving an NTP timestamp answer information packet generated by the optimal time server according to the NTP timestamp query information packet; S3, repeating S1 and S2, and executing S4 when the repeated times is N, wherein N is more than or equal to 5 and less than or equal to 10, the repeated time interval is t, and t is more than or equal to 10s and less than or equal to 30s; S4, the client calculating a time difference data mean by adopting an information packet filter algorithm; S5, the client calibrating the client time according to the time difference data mean; and S6,the client displaying the calibrated client time. By adopting the method and the system, the calibrating precision is high, the system is small, the scheme is easy to realize, and the hardware cost is relatively low.

A communications device including a receiver configured to receive a plurality of sub-units of an encoded transport block of data in a plurality of time-divided units within frequency resources of a wireless access interface allocated to the mobile terminal, each of the sub-units being received a repeated number of times within a repetition cycle; and circuitry configured to combine a same sub-unit received the repeated number of times to form a composite sub-unit to recover the transport block.

The invention relates to transmission and reception of data in a wireless communication system. In particular, the predetermined number of repetitions of the same data portion is transmitted over the wireless interface. The receiving device receives the repetitions, attempts their decoding and checks whether the decoding was successful. If the decoding was successful after the predetermined number of repetitions or less, a positive acknowledgement is generated. In addition, a feedback including a bundle size information is generated and transmitted. The bundle size information includes a number of repetitions, smaller or equal to the predetermined number, after which the decoding was successful. The feedback is transmitted to the data transmitting device which may adapt the predetermined number of repetitions accordingly. The invention enables efficient control of the number of repetitions applied which is particularly advantageous for coverage enhancement purposes.

According to an embodiment of the present specification, a method for transmitting uplink data in a machine type communication (MTC) device is provided. The method may comprise the steps of: initially transmitting repetitive bundles of physical uplink shared channel (PUSCH) data including identical uplink data in a plurality of uplink subframes to a base station; receiving a hybrid automatic repeat request (HARQ) response signal with respect to the repetitive bundles of PUSCH; if the HARQ response signal is a negative-acknowledgement (NACK), determining the number of repetitions of the PUSCH including identical uplink data; and re-transmitting the PUSCH bundles repeatedly for the determined number of times on the plurality of uplink subframes to the base station.

A multimedia optical disc including data area and index area is provided. The data area includes objects each of which includes video data. The index area includes sub-areas. Each sub-area includes addresses of objects selected from the objects in the date area, a flag indicating a random reproduction of the objects selected, and a number of repeats of the random reproduction.

The invention discloses a mapping method and a device for a physical hybrid automatic repeat request indicator channel and solves the problem of mapping of the physical hybrid automatic repeat request indicator channel of out-of-band mobile relay or higher version terminal to time-frequency resource in high speed mobile environments. According to the mapping method and the device, the reliability and stability of the physical hybrid automatic repeat request indicator channel (PHICH) transmission can be guaranteed by increasing times of repetition of the PHICH and/or increasing spreading factors of the PHICH and/or repeating finally obtained K resource element groups (REGs) on time domain, thereby a receiving end can accurately receive the PHICH, and the transmission efficiency of an entire communication system can be improved.

The invention discloses a communication system and a communication method provided with combined frequency domain repetition and mixed automatic retransmission. At first, one receiving end receives a communication signal, and makes an analysis treatment to the communication signal to obtain a channel quality estimation message and SINR messages of resource blocks that the communication signal corresponds to, then a modulation code format and retransmission times are determined according to the channel quality estimation message and the SINR messages of the resource blocks, finally a sending end makes a corresponding code modulation as well as combined frequency domain repetition and mixture with corresponding times to the communication signal to be transmitted according to the determined modulation code format and retransmission times, then the communication signal is sent. Thus, the transmission time delay of the air interface can be effectively decreased, the repetition times are jointly optimized based on the requirement of the service quality, the frequency domain resource allocation and the time-domain mixed automatic retransmission can be realized, and the packet schedule based on the quality of the channel can also be supported at the same time.

A base station apparatus capable of effectively distributing resources of a wireless communication system, enhancing the throughput and increasing the number of users accommodated in the communication system. This apparatus increases or reduces, in accordance with the traffic of the communication system, the repetition number of transport data addressed to a mobile station being under a soft handover. For example, when the resource usage rates of BS1, BS2 and BS3 are low, intermediate and high, respectively, the repetition number for MS1 being under a soft handover is set, in accordance with the resource usage rates, for example, to four for BS1, to two for BS2 and to one for BS3.

An OFDM communication apparatus that can set an optimum repetition number to data to be transmitted, thereby improving the error rate characteristic and hence the communication quality. In this apparatus, a repetition number deciding part (153) decides, based on quality information outputted from a quality information extracting part (152), a required repetition number. A systematic bit repetition number deciding part (154) decides, based on the repetition number notified of by the repetition number deciding part (153), an optimum repetition number for the systematic bit. A parity bit repetition number deciding part (155) operates similarly. Repetition parts (103-1, 103-2) repeat the bits in accordance with instructions from the systematic bit repetition number deciding part (154) and from the parity bit repetition number deciding part (155).

Method and apparatus for congestion control in a wireless communication system. Individual target data rate values are assigned individual access terminals. The individual data rates of the access terminals are adjusted to achieve the corresponding individual target data rate values. If the target values are not achieved within a predetermined number of iterations, the individual data rate is adjusted. In one embodiment, the status of a congestion bit indicates the type of adjustment, such as increase or decrease, wherein the status of the congestion bit is determined by comparing a congestion parameter to a predetermined threshold. One embodiment implements an outerloop threshold having a margin with respect to the desired congestion metric threshold. According to one embodiment, a congestion indicator includes multiple bits, wherein at least one bit instructs the mobile station to use target values or else to adjust without regard to a target value.