34results about How to "Improve uplink transmission efficiency" patented technology

The invention relates to a DCI (Downlink Control Information) sending method, system and device as well as an transmission uplink method, system and device, relating to the technical field of wireless communication and aiming at solving the problem that a network side is difficult to dispatch a user terminal to carry out uplink transmission because the traditional DCI does not support an LTE-A (Long Term Evolution-Advanced) system in the prior art. The DCI sending method disclosed by the embodiment of the invention comprises the following steps that: the network side generates the DCI used for dispatching the uplink transmission; the network side sends the generated DCI, wherein the DCI comprises the following information: resource indication information, modulation indication information, data indication information, mapping indication information and precoding indication information, wherein the resource indication information is used for indicating the positions of allocated resources; the modulation indication information is used for indicating a modulation coding order of a transmission block; the data indication information is used for indicating whether the transmission block transmits new data or not; the mapping indication information is used for indicating the corresponding relationship of the transmission block and a code word; and the precoding indication information is used for indicating the size of an uplink transmission order and an index of a used precoding code word. The DCI sending method can be used for enhancing the efficiency of the uplink transmission.

The invention provides a method and a device for measuring distance in a passive optical network, and relates to the field of communication. The method comprises the following steps of: acquiring route time delay (RTD) between an optical line terminal (OLT) and an optical network unit (ONU); and opening a quite window for measuring distance for the ONU according to the RTD to measure the distance for the ONU.

The invention discloses an uplink data transmission method and equipment and is used for improving resource allocation flexibility and uplink transmission efficiency of a terminal. The uplink data transmission method comprises the steps that the terminal receives a scheduling signal sent by network equipment, wherein the scheduling signal is used for indicating at least one frequency domain discrete structure; the terminal determines the at least one frequency domain discrete structure according to the scheduling instruction, wherein a size value of the at least one frequency domain discrete structure belongs to a set comprising the size values of a plurality of frequency domain discrete structures, the set comprises the size value of a first frequency domain discrete structure and the size value of a second frequency domain discrete structure, or the set comprises the size value of the second frequency domain discrete structure, and the size value of the second frequency domain discrete structure is smaller than that of the first frequency domain discrete structure; and the terminal initiates uplink data transmission through utilization of the at least one frequency domain discrete structure.

The embodiment of the invention discloses an uplink transmission method on an unlicensed frequency band and terminal equipment. The problems that in the prior art, the transmission mode on an unauthorized frequency band is single, and the transmission efficiency is low are solved. The method is applied to terminal equipment, and the terminal equipment is frame-based equipment FBE (Fiber Bragg Element), and comprises the following steps of: monitoring the idle and busy states of an uplink transmission channel or detecting a channel occupation time sharing indication according to a time domain position relationship between uplink resources and a fixed frame period FFP (Fiber Bragg Period) of the FBE; and determining whether to use the uplink resources to perform uplink transmission or not according to the interception result or the detection result. According to the technical scheme, each uplink transmission does not need to be based on indication of the base station, and signaling overhead can be reduced; and the flexibility of interception or detection operation during FBE uplink transmission can be realized, so that the uplink transmission efficiency is improved.

The invention discloses an MCS-grade determination method and equipment. The method comprises steps that, second SINR of a PUSCH signal is calculated by the base station equipment according to first SINR obtained through SRS signal measurement at the k0 moment; the first MSC grade is determined by the base station equipment according to the second SINR; the really scheduled PRB quantity and the really-used second MCS grade are calculated by the base station equipment according to the first MCS grade and really-needed user transmission data quantity. Through the method, the MCS grade corresponding to PUSCH calling certain PRB quantity can be precisely calculated, the MCS grade of the PUSCH is made to be in matching with the real SINR of the PUSCH channel, PUSCH reception performance is effectively guaranteed, so uplink transmission efficiency of an LTE system is improved, uplink transmission efficiency of district edge users is facilitated to improve, PUSCH transmission performance of the district edge users with large path loss is guaranteed, and the uplink business rate of the edge users is facilitated to improve.

The embodiment of the invention discloses a resource scheduling method and device. The method in the embodiment of the invention comprises the following steps: receiving an uplink scheduling request sent by user equipment (UE); acquiring a modulation and coding scheme (MCS) value; transmitting the MCS value to the UE in order that the UE transmits uplink data according to the MCS value and transmits a cache state report; if the received cache state report instructs the UE that data to be transmitted exists, determining that the adjustment times of the MCS value do not surpass a preset threshold value; acquiring the MCS value; performing upward adjustment on the MCS value; and transmitting the adjusted MCS value to the UE in order that the UE transmits uplink data according to the adjusted MCS value. Through adoption of the resource scheduling method and device, the uplink transmission efficiency of the UE is effectively increased.

The invention provides a communication method, device, equipment and system and a storage medium. The communication method comprises the steps that the network equipment sends indication information to the terminal equipment, after the terminal equipment receives the indication information, whether a first time-frequency resource indicated by the indication information is overlapped with a secondtime-frequency resource bearing N uplink channels to be sent by the terminal equipment or not is judged, and if yes, sending of the N uplink channels is adjusted. For example, the N uplink channels carried on the second time-frequency resource are discarded, or the uplink channels carried on the time-frequency resource overlapped with the first time-frequency resource in the second time-frequencyresource are discarded. Therefore, the interference of the information carried on the second time-frequency resource on the information carried on the first time-frequency resource can be avoided, theaccurate transmission of the information on the first time-frequency resource is ensured, and the uplink transmission efficiency of the communication system is improved.

The embodiment of the invention provides a resource scheduling method, a resource scheduling device and a resource scheduling system. The resource scheduling method comprises the following steps that: a first terminal acquires first training sequence indication information and a first uplink state identifier, wherein a training sequence of the first terminal, which is indicated by the first training sequence indication information is different from training sequences of other terminals scheduled by the first uplink state identifier, and the first uplink state identifier is used for scheduling the first terminal and the other terminals to transmit data on an uplink wireless block corresponding to the first uplink state identifier; the first terminal receives scheduling information, wherein the scheduling information comprises the first uplink state identifier; and the first terminal transmits the data on the uplink wireless block corresponding to the first uplink state identifier through the training sequence indicated by the first training sequence indication information. By the method, the uplink data transmission efficiency can be improved.

The invention discloses a method and a system for synchronizing uplink transmission in a passive optical network (PON). The method comprises the following steps that: an optical line terminal (OLT) determines the maximum equalization delay (EqDmax) according to the maximum round trip delay (RTDmax) of all on-line optical network units (ONU) in a PON system, and calculates the values of the EqD of all the ONUs according to the EqDmax; when the RTDmax is updated, the OLT calculates EqD updating information according to the updated RTDmax; and the OLT sends EqD updating information to all on-line ONUs, and after updating the EqD according to the received EqD updating information, the ONUs synchronize uplink transmission according to the updated EqD. The OLT can update the RTDmax of all on-line ONUs timely and updates the EqD of each ONU according to the RTDmax dynamically, so that uplink transmission efficiency can be improved.

The invention provides a channel conflict processing method and device, equipment and a storage medium. The channel conflict processing method comprises the steps of: determining a transmission cancelstarting position of a low-priority uplink channel when transmission resource time domains of a high-priority uplink channel and a low-priority uplink channel of the same UE are overlapped; and cancelling transmission resources of the low-priority uplink channel according to the cancelling start position. According to the channel conflict processing method and the device provided by the embodiment of the invention, when the channels conflict, the influence of the high-priority uplink channel on the low-priority uplink channel is reduced by determining the transmission cancel starting positionof the low-priority uplink channel, and the transmission efficiency of the low-priority uplink channel is improved.

Provided are a code channel selection method and device, which can increase the uplink transmission efficiency during an operation where a variable bandwidth is set to zero. The method comprises: acquiring a bandwidth contraction-expansion factor and the bit number of a first sequence of channel coding; according to the bandwidth contraction-expansion factor, the bit number of the first sequence of the channel coding and a pre-set first set, determining the first bit number of a second sequence, wherein the second sequence is an output sequence after rate matching is conducted on the first sequence of the channel coding according to the bandwidth contraction-expansion factor; according to the first bit number of the second sequence, acquiring first information about the second sequence, wherein the first information comprises a first spectrum spreading factor of each code channel in at least one physical channel code channel corresponding to the second sequence; and according to the first spectrum spreading factor of each code channel and the bandwidth contraction-expansion factor, determining a spectrum spreading code corresponding to each code channel. The present invention is applied to the field of communications.

The invention provides an uplink transmission method and a terminal. The uplink transmission method comprises the steps of determining a terminal behavior mode according to at least one of configuration information of a terminal, received downlink control information, whether a serving cell where first information is located is an authorized frequency band or not, and whether a serving cell wherefirst uplink transmission is located is an authorized frequency band or not; and performing uplink transmission based on the terminal behavior mode. According to the embodiment of the invention, the uplink transmission opportunity of the terminal can be increased, the throughput and time delay of uplink transmission are improved, and the uplink transmission efficiency is improved.

Disclosed are an optical splitter and a passive optical network system. The optical splitter of the embodiments of the present invention comprises a trunk waveguide and a branch waveguide; and the trunk waveguide comprises a trunk single-mode waveguide, a trunk tapered waveguide and a trunk multi-mode waveguide which are coupled in sequence, wherein the trunk multi-mode waveguide comprises a light absorbing material region and a fibre Bragg grating (FBG) region, the light absorbing material region being coupled to the trunk tapered waveguide, and the FBG region being coupled to the branch waveguide. The embodiments of the present invention solve the problem in the prior art of an optical loss caused by light leaking of an optical splitter in an uplink direction, which reduces the optical loss in the uplink direction and improves the uplink transmission efficiency.

The invention discloses a terminal timing advance reporting method, and the method comprises the following steps: configuring information used for indicating a format of a timing advance reporting request signaling and a mode of transmitting timing advance, wherein the timing advance report request signaling is used for triggering transmission of the timing advance; and transmitting the timing advance in a corresponding resource according to the mode of transmitting the timing advance. The invention further comprises a device applying the method. The invention solves the problem of low uplink transmission efficiency of the existing method and equipment, and is particularly suitable for a mobile communication network.