41results about How to "Increase transmission opportunities" patented technology

The invention discloses a sounding reference signal transmitting method and device, a sounding reference signal receiving method and device, UE and a base station. The sounding reference signal transmitting method comprises the steps of determining a resource used for transmitting sounding reference signals (SRS) on an unlicensed carrier; and transmitting the SRS according to the determined resource. According to the invention, a problem of little transmission opportunity for transmitting the SRS on the unlicensed carrier in related technologies is solved, and thus the effect of improving the opportunity for transmitting the SRS on the unlicensed carrier is achieved.

The invention discloses a method for combination of a multichannel MAC (Media Access Control) protocol and TDMA (Time Division Media Access) in IOV (Internet of Vehicles), which overcomes the problems of low time slot utilization rate of a control channel CCH and a service channel SCH and high expense of channels in the prior art. The specific thought of the method is as follows: firstly , setting channel initialization; then, by a roadside unit RSU, negotiating time slot with a node, updating the time slot length of the control channel CCH based on a feedback condition of the node, and maintaining time slot distribution of two channel lists; and finally switching to the service channel SCH for data transmission. According to the method for combination of the multichannel MAC protocol and the TDMA in the IOV, as the roadside unit RSU controls the time slot length of the control channel CCH and the time slot distribution, the problems of low utilization rate of the channel and high channel expense under the condition of a varying vehicle density can be avoided efficiently, the throughput of the channel is increased , and the channel expense is reduced.

The invention provides an LTE unlicensed band network LAA and WiFi coexistence method and coexistence system, and provides a power-based LAA and WiFi coexistence method and coexistence system, which are used for overcoming the problem that the LAA and WiFi coexistence network capacity cannot meet the communication requirement. The LAA and WiFi coexistence method includes that Firstly, the channelstate is judged; when no idle channel exists, the LAA sends SR signaling to the central controller, the central controller collects, gathers and processes channel information between the LAA and theWiFi AC, controls the weight to be redistributed and transferred to achieve load balancing, and the LAA BS is'started 'in the channel balancing process to conduct data transmission in a power multiplexing mode. According to the invention, information of different users is transmitted through different powers on the same channel at the same time aiming at an LAA'opening 'time period, and the different powers are distributed to the different users, so that coexistence of a heterogeneous network is realized, the network performance is improved with relatively low complexity, the LAA system throughput and transmission efficiency are improved, and the spectrum utilization rate is improved.

To suitably perform information transfer, while suppressing interference to other terminal stations, and preventing a reduction of a transmission opportunity of other terminal stations.

A terminal station estimates a distance of another terminal station (within a receivable range), from an MCS or RSSI, for example, and controls a transmission power of itself, in accordance with a value weighted with respect to distance. For example, in the case where it is estimated that a number of terminal stations with a far distance has increased, from the value weighted with respect to distance, a transmission power of itself is lowered. As a result of this, transmission by multi-hop is explicitly performed, and it is possible to suppress electric wave interference of a multi-hop destination.

The invention discloses a transmission control method and a transmission control device of buffer state report (BSR), wherein the method and device are used for adjusting physical resources which transmit BSR to increase transmission chances of the BSR, so that the transmission success rate of the BSR is improved. The transmission control method of BSR comprises the steps of: distributing a physical uplink shared channel (PUSCH) resource for a terminal when a schedule requirement (SR) transmitted by the terminal is received, and sending a UL-GRANT which carries a PUSCH resource indication distributed for the terminal to the terminal; detecting a decoding result of BSR transmitted by the terminal via the PUSCH resource; judging whether the sending of the UL-GRANT is continued or not, and adjusting PUSCH resource positions distributed for the terminal.

The invention relates to the technical field of communication, and provides a method for selecting and grouping users in a multi-antenna system. The method comprises the following steps of: receiving access link channel state information by a control node, wherein the access link channel state information is transmitted by at least two users; determining scheduling priorities of at least two users according to the access link channel state information, and selecting the user with the highest scheduling priority as a reference user in a user group; determining a spatial character value between the reference user and the user of the at least two users except for the reference user; determining a grouping function value of the user of the at least two users except for the reference user according to the spatial character value and the scheduling priority of the user of the at least two users except for the reference user; and determining the group of the user according to the grouping function value of the user of the at least two users except for the reference user. According to the scheme provided by the embodiment of the invention, channel orthogonality and throughput among users are fully considered, transmission chance of the users is improved, and system throughput and spectrum efficiency are greatly promoted.

The invention discloses a method and device for updating or modifying a NAV (network allocation vector), and relates to the field of information, and the transmission opportunity of SR (spatial reuse) data can be improved. The method comprises the following steps: a node of a first link firstly monitors physical layer convergence process protocol data unit PPDU for node sending in an overlay basic service set OBSS, wherein the node in the OBSS comprises a sending end node of a second link and a receiving end node of the second link, wherein the first link is a spatial reuse link, and the second link is the link in communicating; and then the network allocation vector NAV is updated or modified according to the PPDU, and/or the receiving power of the PPDU. The method disclosed by the invention is suitable for the NAV updating or modification through the sending end node of the SR link and the receiving end node of the SR link.

A method for transmitting a medium access control (MAC) protocol data unit (PDU) by a user equipment (UE) in a wireless communication system is disclosed. The method comprises steps of receiving information about a first grant and a second grant; generating the MAC PDU for the first grant; storing the MAC PDU in a first Hybrid automatic repeat request (HARQ) buffer associated with the first grant and a second HARQ buffer associated with the second grant; performing listen before talk (LBT) procedure for the first grant and the second grant; and transmitting the MAC PDU on a grant for which the LBT succeeds firstly among the first grant and the second grant.

A format that includes a BSSID of a transmitting station within a preamble of the frame is an HE format, and a format that does not include a BSSID within the preamble but includes a BSSID in a MAC header is a Non-HE format; and a wireless station in the BSS includes a control part which checks a format of a frame received at a predetermined receiver sensitivity or above, and continues demodulation of the received frame if the format is HE format and the BSSID in the received frame is consistent with its own BSS, and stops the demodulation of the received frame if the HE format and the BSSID in the received frame is not consistent with its own BSS.

The disclosure provides a method and a device in a User Equipment (UE) and base station for wireless communication. In one embodiment, the user equipment performs a first listening in a first time domain resource of a first frequency domain resource, transmits a second wireless signal in a second time domain resource of the first frequency domain resource, performs a first supplementary listening in a third time domain resource of the first frequency domain resource, and transmits a first wireless signal in a fourth time domain resource of the first frequency domain resource; wherein the first supplementary listening includes decrementing a first counter based on the first listening. This disclosure can increase the transmission opportunity, thereby improving transmission efficiency and spectrum utilization.

The invention provides a method for data transmission. The method comprises the following steps: sending information of frequency domain resources of at least one sub-band for executing carrier monitoring to UE; performing carrier monitoring on the at least one sub-band; allocating idle resources in one or more sub-frequency bands to the UE; and transmitting control information indicating the resources allocated to the UE to the UE. The invention also provides a method for HARQ-ACK transmission, a method for transmitting OFDM symbols, a corresponding base station, UE and a computer readable medium.

The embodiment of the invention provides an information transmission method, terminal equipment and network equipment. The method comprises the steps that terminal equipment receives first indicationinformation sent by network equipment and determines a target comb tooth group from a current candidate set according to the first indication information; furthermore, the information is sent to the network equipment through a target comb tooth group, wherein the current candidate set comprises a first candidate set, the first candidate set comprises at least two first comb tooth groups, each first comb tooth group comprises at least one first comb tooth, and each first comb tooth comprises one RB in each first RBG in at least two first RBGs in a first bandwidth. Therefore, the method not onlycan be suitable for information transmission of different bandwidths, but also can improve the transmitting power of the information through a comb-tooth-shaped resource allocation mode, thereby improving the transmission opportunity and transmission performance of the information.

The invention discloses a method and an apparatus in a node used for wireless communication. The node sends a first signal, a first reference signal and a second reference signal on a first channel; the small-scale fading channel parameter experienced by the second reference signal is used for deducing the small-scale fading channel parameter experienced by the first signal; the first reference signal is associated to at least one antenna port of the second reference signal, a first modulation coding scheme is used for determining the density of the first reference signal in a time domain, and the first modulation coding scheme is different from a modulation coding scheme of the first signal. According to the method and the device, the reference modulation coding mode of the phase tracking reference signal during resource mapping is decorrelated with the modulation coding mode adopted by the data, so that the mapping of the uplink transmission phase tracking reference signal based on non-scheduling is more easily obtained by the base station side, and the overall performance of the system is further improved.

The invention relates to a communication method and device of a physical direct communication data channel and a storage medium. The communication method based on the physical direct communication data channel is applied to a terminal and comprises the steps that the physical direct communication data channel is determined, and the physical direct communication data channel comprises a plurality of sending starting positions of direct communication signals; the direct communication signals are transmitted on the unlicensed frequency band based on the plurality of transmission starting positions. According to the present disclosure, based on the plurality of start sending positions, the direct communication signals are sent on the unlicensed frequency band, so that the transmission opportunity that a physical direct connection communication data channel can be performed after LBT succeeds can be increased.