58results about How to "Save time and frequency resources" patented technology

The invention discloses a multi-subframe uplink scheduling method of a time division multiplexing system. The method comprises the following steps that: when a grouping factor Ng of a PHICH is equal to 1, a base station reserves N PHICH groups in a downlink subframe, selects a downlink feedback mode from a multi-ACK / NACK feedback mode and a bundling-ACK / NACK feedback mode according to the number of uplink users NUE to be scheduled currently and / or the number of the uplink users using 1 or 2 uplink subframes for data transmission in the NUE uplink users, and informs each uplink user to be scheduled of the selected downlink feedback mode through an uplink scheduling authority, wherein the N rounds up a result obtained by dividing a product of the Ng and an NRB by 8 and the NRB represents the number of downlink resource blocks. Due to the adoption of the method, time frequency resource which is in the downlink subframe and is used for PHICH transmission can be saved.

The invention discloses a network coding method of hybrid automatic request retransmission for a long-term evolution system. Two adjacent transmission blocks are selectively subjected to network coding by a transmitting end according to transmission results of two adjacent transmission blocks; coding results are retransmitted; retransmission of two transmission blocks can be finished in a transmission process; and thus, time-frequency resource occupied during retransmission of the transmission blocks can be obviously reduced and transmission passing rate can be increased under the condition of not nearly damaging transmission performance of the two transmission blocks. When the received transmission block is in a retransmission state, only a coding block which is not temporarily or correctly decoded in a previous transmission process is decoded, the coding block which has been correctly decoded in the previous transmission process is ignored, and the decoder resource can be greatly saved.

The present invention provides a data re-transmitting method comprising the steps of firstly, sending ascending transmission resource indication signaling by a sender, wherein, the ascending transmission resource indication signaling is provided with an ACK / NACK begin index domain; secondly, according to the ACK / NACK begin index domain and ascending index of the ascending transmission resource indication signaling, obtaining corresponding ACK / NACK information by a receiver; finally, performing data re-transmission according to the corresponding ACK / NACK information. The present invention also discloses a sender and a receiver of the device for ACK / NACK information indication and data re-transmission and a indication method of the ACK / NACK information. According to the present invention, by using the ascending transmission resource indication signaling provided with an ACK / NACK begin index domain, ACK / NACK information of ascending sub-frames corresponding to users can be obtained, therefore, time-frequency resources of the system can be saved.

The invention provides a random access response method and device, a base station and a terminal. The method includes the steps that the terminal sends a random access response message, wherein the MAC PDU (media access control protocol data unit ) of the random access response message includes at least one MAC subPDU (medium access control sub-protocol data unit), and each MAC subPDU includes a MAC sub-head and a possible MAC RAR (media access control random access response) corresponding to the MAC sub-head; when there are at least two MAC subPDUs, at least two MAC sub-PDUs are sequentiallyarranged in the MAC PDU. According to the present invention, the method enables a base station gNB to quickly respond to random access requests from multiple terminals and in multiple demands, and also enables a single terminal UE to quickly receive and parse the response to the random access request sent by the terminal, thereby reducing the time delay of random access, and saving the power of the terminal.

The embodiment of the invention provides a clock synchronization method, a communication device and communication equipment. The method comprises the following steps: enabling terminal equipment to receive first time information from network equipment; receiving a downlink signal from the network device; sending an uplink signal to the network device; receiving second time information from the network equipment, wherein the second time information is used for determining a receiving moment when the network equipment receives the uplink signal; determining a sending moment of the downlink signal according to the reference time point and a time sequence relationship between the uplink signal and the downlink signal; and determining the clock skew of the terminal equipment according to the sending moment and the receiving moment of the downlink signal and the sending moment and the receiving moment of the uplink signal. The sending moment of the synchronization message is calculated through the terminal device, the network device does not need to carry the sending moment of the synchronization message by sending the following message to the terminal device, time-frequency resources ina wireless network are saved, and the complexity of scheduling the time-frequency resources by the network device is reduced.

A downlink control signaling transmission method in wireless communication system is provided, which comprises following steps: base stations in public control signaling through transmitting downlink physical control channel distribution combination index indicates downlink physical control channel type and the number of downlink physical control channel in various types transmitted in current transmission time intervals; base stations transmitted various downlink physical control channels. The invention compared to other downlink control signaling transmission methods, reduces public control signaling bit cost, decreases time-frequency resources occupied by public control signaling, thus improving system spectrum utilization.

The invention discloses a full-duplex orthogonal frequency division communication method for a large-scale antenna system. The method mainly solves the problems that in the system, in a traditional FDM mode, the amount of feedback information is large, and a traditional TDM mode is difficult to adapt to the fast change characteristic of a channel. The method comprises the steps that (1) a transmission band of a signal is divided into a plurality of mutually orthogonal subcarriers by utilizing the OFDM thought; (2) the divided subcarriers are distributed to uplinks and downlinks in a specific mode; (3) terminals send pilot signals in the distributed uplinks, and a base station acquires channel state information at all the subcarriers according to received pilot signals; (4) on the basis of the channel state information, the base station and the terminals respectively transmit data on the distributed downlink subcarriers and uplink subcarriers. The full-duplex orthogonal frequency division communication method has the advantages of no feedback, simultaneous receiving and sending, low delay and large coverage, thereby being capable of being used for full-duplex communication of the large-scale antenna system in a high-speed mobile scenario.

The invention discloses a transmitting method of control signallings and reference signals based on a broadband single carrier system, and a transmitting signal unit in terms of a subframe, wherein, each subframe comprises one or more long data blocks and short data blocks for transmitting control signallings or reference signals. The method comprises following steps: utilizing a first short data block to transmit control signallings at the most front end of each subframe; after the first short data block, utilizing a second short data block to transmit reference signals; after the second short data block, utilizing the first, the second, the third, the fourth, the fifth long data blocks to transmit user data or signallings relating with data transmission; after the fifth long data block, utilizing the third short data block to transmit reference signals; after the third short data block, utilizing the fourth short data block to transmit control signallings or user data. The disadvantages of too long delay time of control signalling demodulation and resource waste in the prior art are overcame by using the method of the invention.

The embodiment of the invention provides a system message sending method and equipment, and relates to the communication field. A network time frequency resource waste problem caused by sending the system message through multiple dedicated signaling can be solved. The method comprises the following steps: when the network side equipment receives a system message request sent by the UE, and the system message request is used for requesting a first system message, the network side equipment can send a group identifier, or the group identifier and the time frequency resource to the UE requestingthe first system message, thereby sending the first system message to the UE requesting the first system message in a multicast way; or the network side equipment broadcasts the first system message.The sending method and equipment provided by the embodiment of the invention are used for sending On-demand SI to the UE by the network side equipment.

The invention relates to a method for realizing channel in multi-carrier system. Wherein, in the region, keeping the frequency complex factor as 1; at the edge of region, using frequency group to reduce the interference between regions; setting distribution instruct channels at main and sub frequencies; the distribution instruct channel at main frequency distributes the main frequency, while the sub one distributes the sub frequency, to reduce the time domain resource, and reduce the main frequency resource for distribution instruct channel. And the mobile terminal can detect the distribution instruct channel based on itself occupied frequency, to reduce the load.

The invention discloses an awakening method and device, a storage medium and a terminal. The awakening method comprises the following steps: monitoring an awakening PDCCH; if the awakening PDCCH is detected, or, if it is detected that the awakening PDCCH exists and awakening indication information in downlink control information transmitted by the awakening PDCCH indicates that the PDCCH enters anawakening state, determining that the PDCCH enters the awakening state, wherein the awakening state refers to starting of a working duration timer and / or starting of a DRX deactivation timer. According to the technical scheme of the invention, the awakening signaling can be optimally designed in a narrowband system.

The invention discloses a D2D (Device-to-Device) device identification label processing method and a D2D device identification label processing device. The method includes the following steps: a D2D device sends a D2D temporary identification label application; the D2D device receives a D2D temporary identification label authorization information corresponding to the D2D temporary identification label application, and obtains a D2D temporary identification label; the D2D device broadcasts the received D2D temporary identification label, which is used to achieve the purpose that the D2D device can be discovered by a discovering end D2D device during the D2D discovery process. The communication safety of D2D devices is improved through the invention.

The embodiment of the invention provides sending and receiving methods and devices for an uplink tracking signal. The sending method for the uplink tracking signal comprises the steps as follows: whenuser equipment (UE) in a connected state does not have data transmission within detection time, the UE stops sending a sounding reference signal (SRS) and is changed to send the uplink tracking signal, so that a network side tracks the position of the UE according to the uplink tracking signal, and thus network side equipment can accurately determine the position of the UE according to the uplinktracking signal; furthermore, the bandwidth occupied by the uplink tracking signal is less than that occupied by the SRS, so that time frequency resources occupied to send the uplink tracking signalis saved, and the energy consumption of the UE can be reduced.

The invention discloses a transmitting method of control signallings and reference signals based on a broadband single carrier system, and a transmitting signal unit in terms of a subframe, wherein, each subframe comprises one or more long data blocks and short data blocks for transmitting control signallings or reference signals. The method comprises following steps: utilizing a first short data block to transmit control signallings at the most front end of each subframe; after the first short data block, utilizing a second short data block to transmit reference signals; after the second short data block, utilizing the first, the second, the third, the fourth, the fifth long data blocks to transmit user data or signallings relating with data transmission; after the fifth long data block, utilizing the third short data block to transmit reference signals; after the third short data block, utilizing the fourth short data block as a switching guard interval. The disadvantages of too long delay time of control signalling demodulation and resource waste in the prior art are overcame by using the method of the invention.

The disclosure provides a method for processing a Multimedia Broadcast Multicast Service (MBMS) counting message. The method includes: a network side configures counting message for performing feedback counting on an MBMS service; and the network side determines a Multimedia Broadcast Multicast Service Single Frequency Network (MBSFN) area to which the counted MBMS belongs and a Multimedia Control Channel (MCCH) which corresponds to the MBSFN area, and transmits the counting message to user equipment (UE) through the MCCH which corresponds to the MBSFN area, or transmits the counting message to the UE through a Broadcast Control Channel (BCCH). The disclosure also discloses an apparatus for processing an MBMS counting message. By using the method and the apparatus provided by the disclosure, the network side can know the reception situation of the MBMS service in the MBSFN area.

The invention discloses a multi-antenna wireless communication system and a transmitting method thereof. The method comprises the following steps of: dividing a plurality of antennae into two transmitting antenna groups; transmitting reference signals and data signals of the first transmitting antenna group in a mode that time frequencies of reference signals of transmitting antennae in the firsttransmitting antenna group are not superposed; and transmitting reference signals of the second transmitting antenna group in a mode that reference signals of the second transmitting antenna group are superposed on the transmitting signals of the first transmitting antenna group.

The invention discloses a transmitting method of control signallings and reference signals based on a broadband single carrier system, and a transmitting signal unit in terms of a subframe, wherein, each subframe comprises one or more long data blocks and short data blocks for transmitting control signallings or reference signals. The method comprises following steps: utilizing a first short data block to transmit control signallings at the most front end of each subframe; utilizing a second short data block to transmit reference signals; utilizing a third short data block to transmit control signallings or user data; utilizing the first, the second, the third, the fourth long data blocks to transmit user data or signallings relating with data transmission; utilizing the fourth short data block to transmit reference signals; utilizing the fifth long data block to transmit user data or signallings relating with data transmission. The disadvantages of too long delay time of control signalling demodulation and resource waste in the prior art are overcame by using the method of the invention.

An embodiment of the invention discloses a large-scale multi-input-and-output channel estimation method and device. The method includes receiving pilot signals on a plurality of sub carriers; according to high relevance among antennas, restoring a frequency domain channel matrix of sub carriers with pilot occupancy through a compressed sensing algorithm and restoring channel matrix of all the sub carriers by utilizing a feature of time domain sparsity of channels. By adopting the method and device provided by the invention, channel time frequency resource occupied by the pilot signals during a channel estimation process is saved.

The invention discloses a transmitting method of control signallings and reference signals based on a broadband single carrier system, and a transmitting signal unit in terms of a subframe, wherein, each subframe comprises one or more long data blocks and short data blocks for transmitting control signallings or reference signals. The method comprises following steps: utilizing a first short data block to transmit control signallings at the most front end of each subframe; utilizing a second short data block to transmit reference signals; utilizing a third short data block to transmit control signallings or user data; utilizing the first, the second, the third, the fourth long data blocks to transmit user data or signallings relating with data transmission; utilizing the fourth short data block to transmit reference signals; utilizing the fifth long data block as a switching guard interval. The disadvantages of too long delay time of control signalling demodulation and resource waste in the prior art are overcame by using the method of the invention.

The invention discloses a communication method, a base station, and a communication system used for massive MIMO. The communication method comprises: the base station performs beam forming by employing massive MIMO to form a plurality of beams; and the base station sends channel state information reference signals CSI-RS through the beams after beam forming, and the channel state information reference signals are multiplexed between different beams. According to the method, the base station, and the system, time frequency resources occupied by the channel state information reference signals are reduced, and the cost of the channel state information reference signals is lowered.

The embodiment of the invention provides an antenna system and network equipment. The antenna system comprises a baseband processing unit, a control unit, at least one radio frequency channel, an array selection switch, at least two sub-arrays and a lens antenna, and is characterized in that the baseband processing unit is used for converting a bit stream signal needing to be sent to user equipment (UE) into an analog signal and sending information of a cell to which the UE belongs to the control unit; the control unit is used for determining a first channel for processing the analog signal from the at least one radio frequency channel and sending information of the first channel to the baseband processing unit; the baseband processing unit is also used for receiving the information of thefirst channel and sending the analog signal to the first channel for processing according to the information of the first channel; and the first sub-array is used for focusing and transmitting the signal received from the first channel through the lens antenna. By adopting the embodiment of the invention, multi-beam high-gain directional coverage can be realized.

The present invention discloses a communication method for a large-scale antenna, a base station and a communication system. The communication method includes the following steps that: a base station performs beamforming by using the large-scale antenna so as to form a plurality of beams; and the base station transmits common reference signals through the formed beams, wherein the common reference signals can be multiplexed between different beams. With the communication method adopted, time-frequency resources occupied by the common reference signals can be decreased, and the overhead of the common reference signals can be reduced.

The invention provides a CSI measurement method and device. In the method, a terminal can send a first RS occupying a plurality of frequency domain resource segments on a time domain unit to a networkdevice, the plurality of frequency domain resource segments are discontinuously distributed on a frequency band of the terminal, and the network device receives the first RS on a corresponding frequency domain resource segment and measures CSI according to the first RS. At present, in order to avoid channel aging, one used method is to shorten the period of the SRS. However, because the frequencydomain resources occupied by the SRS are continuously distributed on the whole frequency band, the method may cause a waste of time-frequency resources. In the method disclosed by the invention, thefirst RS is discontinuously distributed on the frequency band of the terminal, so that the occupied time frequency resources are less. Therefore, the period of the first RS can be made shorter, thereby avoiding channel aging. The invention relates to the technical field of communication.

The invention discloses a synchronous broadcast information sending method and device and a synchronous broadcast information detection method and device. The method comprises the steps that first equipment generates a straight-through link-synchronous signal and a physical broadcast channel block S-SSB, wherein the S-SSB at least comprises a straight-through link-primary synchronization signal S-PSS, a straight-through link-secondary synchronization signal S-SSS and a physical straight-through link broadcast channel PSBCH signal, and does not comprise a demodulation reference signal DMRS; thefirst device sends the S-SSB; according to the method disclosed in the invention, the same S-SSB is realized under the CP-OFDM waveform and the DFT-s-OFDM waveform.

The invention discloses a sending method and a receiving method of communication physical frame control information. Wherein the physical frame control information adopts a two-stage structure; the control information structure is divided into an SIG domain and a PHR domain, through the control information structure, proper control information modulation coding and / or diversity interleaving and other sending parameters can be adaptively selected according to indexes such as communication quality and communication success rate, and the control information is correspondingly and efficiently demodulated and received at a receiving end; when the signal transmission quality of two communication parties is good; the sending end can select a modulation and coding mode with higher spectral efficiency; on the premise of ensuring that the receiving end can correctly demodulate the control information; time-frequency resources occupied by control information in a physical frame can be greatly reduced, the defects that in the prior art, channel quality cannot be adaptively adapted, the physical frame length is fixed, system resource redundancy cannot be adaptively reduced and the like are overcome, and the highest utilization efficiency of the time-frequency resources is achieved on the premise that communication of the whole control information segment is successful.

The invention discloses a method and apparatus for entering a sleep state, a storage medium, and user equipment. The method comprises the steps: monitoring a PDCCH, and determining whether a sleep state needs to be entered, wherein the sleep state is to ignore a part of PDCCH monitoring opportunities or to modify PDCCH configuration. According to the technical scheme of the invention, the sleep signaling can be optimally designed in a narrowband system.

The invention provides a downlink beam management method, a base station and a terminal. The method comprises the following steps: receiving an access request sent by a target terminal through a first SSB beam; under the condition that the number of the accessed terminals does not exceed the threshold value, allocating a target CSI-RS resource to the target terminal, and sending the target CSI-RS to the target terminal through the first SSB beam; and sending the downlink service information and the control signaling to the target terminal through the first SSB beam. According to the downlink beam management method, the base station and the terminal provided by the invention, the SSB beam sent by the base station does not carry the CSI-RS, and the base station sends the target CSI-RS to the target terminal through the first SSB beam and sends the downlink service information and the control signaling to the target terminal through the first SSB beam, so that when the downlink beam is managed, less time-frequency resources are occupied, interference to an adjacent region can be avoided, and the communication quality of 5G NR can be improved.

The invention discloses a method and device for processing discovery messages and belongs to the field of communication. The method comprises the steps that a first wireless network device receives the discovery messages sent by a second wireless network device; if the first wireless network device is in the state of RRC connection or an RRC connection requirement, the first wireless network device sends feedback messages corresponding to the discovery messages to the second wireless device. The method and device have the advantage of saving time-frequency resources.