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 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 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 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 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 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.