28 results about "Channel contention" patented technology

Provided are a wireless communication method and device, an AP having an uplink multi-user detection capability in a channel competition stage, so that the AP can reasonably select to grant a TXOP to an STA or the AP based on an uplink service demand quantity and a downlink service demand quantity, thereby reducing the time delay of uplink and downlink data transmission, and alleviating time delay jitter. The wireless communication method comprises: a first STA sending a first PPDU, the first STA having uplink data to be transmitted; wherein the first PPDU comprises a first MAC frame and a first identification field, the first MAC frame is used for competing for a channel, and the first identification field is used for indicating an AID of the first STA; or, the first PPDU comprises a second MAC frame, the second MAC frame is used for competing for a channel, and the second MAC frame is also used for triggering all STAs receiving the second MAC frame to feed back whether a medium needs to be acquired to transmit uplink data.

The present application provides a communication method and apparatus for use in providing a contention channel mechanism suitable for NearLink communication technology. The method comprises: a first node determining M measurement time domain resources; determining M time domain resources on the basis of the M measurement time domain resources; and on the basis of a state of the first node on a k-th time domain resource and / or a channel state measurement result on a k-th measurement time domain resource, determining a channel contention result of the first node in a first contention channel period, wherein the M measurement time domain resources are used for measuring channel states, M is an integer greater than 1, the k-th time domain resource is one of the M time domain resources, and the k-th measurement time domain resource is one of the M measurement time domain resources. There are many measurement time domain resources within the first contention channel period, so that a channel contention result can be more accurately determined by comprehensively considering a plurality of channel state measurement results, and the first node is also provided with more opportunities to contend for a channel, thereby increasing the probability that the first node obtains the channel.

The embodiment of the invention provides a wireless communication method and equipment, an STA grouping function is introduced in channel competition, the distribution of TXOP is more efficient, and the use frequency of multi-user uplink (MU UL) is improved, so that the time delay of uplink and downlink data transmission is reduced, and the time delay jitter is relieved. The wireless communication method is applied to an STA, the STA has uplink data to be transmitted, and the method comprises the following steps: the STA sends a first MAC frame; wherein the first MAC frame is used for competing for a channel, and a channel competition result corresponding to the first MAC frame is associated with grouping information of the STA.

The invention discloses a network access control method and system for a multi-band wireless local area network, and belongs to the technical field of wireless communication. The method comprises: on a first frequency band, an access point sends a probe response frame carrying a neighbor report element to a station device, the element comprising target beacon transmission time TBTT offset or target wake-up time TWT offset information of the access point on a second frequency band, and access permission information; and the site equipment calculates accurate scanning starting time based on the offset information, and executes a controlled access process according to the access permission information. According to the invention, by constructing a double-layer architecture of an auxiliary transfer layer and a target service layer and utilizing a cross-band accurate time sequence calibration and authority control mechanism, the problems of low discovery efficiency, high scanning power consumption, serious channel competition conflict, uneven load and the like of a 6GHz band network in the prior art are solved; and the access efficiency, the resource utilization rate and the user experience of the multi-band network are remarkably improved.

A method and a communication device for communication can be applied to a WLAN system supporting IEEE 802.11ax next-generation Wi-Fi protocol, such as 802.11be, again such as 802.11bn, again such as 802.11bn next-generation, and the like 802.11 series protocol, and can also be applied to a wireless personal area network system based on UWB and a sensing system. In the method, when a first station detects interaction of an OBSS station about unavailable information, the first station can enable NPCA based on the length of a PPDU, that is, in the case of detecting a PPDU meeting the condition of triggering NPCA, switching from a main channel to an NPCA main channel, and switching back to the main channel based on the end time of the PPDU, so as to switch back to the main channel in time for channel competition, and avoid wasting transmission resources of the main channel.

The present application provides a communication method and a related apparatus. The method is applied to a power line communication-based communication network. In a frame transmitted to a first communication apparatus, a second communication apparatus not only occupies a first frequency resource, but also occupies a second frequency resource, so that a third communication apparatus easily detects that a channel corresponding to the frame is occupied, thereby reducing the probability of collisions during channel contention.

The application supports the related standards of IEEE (Institute of Electrical and Electronic Engineers), such as IEEE 802.11be, IEEE 802.11bn, IEEE 802.11bf, IEEE 802.15, Wi-Fi (Wireless Fidelity) 7, Wi-Fi 8, EHT, UHR, IMMW, UWB (Ultra Wide Band) or perception protocols, and also can support a spark link / nearlink standard protocol. Provided are a communication method and a communication device, a second station can learn an end moment when a first station is unavailable through first information, and learn that the first station needs the second station to assist in recovering medium synchronization based on second information. Therefore, the second station sends the first frame to the first station after the first station is unavailable, so that the first station can be assisted to recover the medium synchronization state more quickly, the first station can normally participate in channel competition, and possible transmission opportunities are prevented from being lost.

The invention provides a communication method and device, and is used for providing a competition channel mechanism suitable for a satellite flash communication technology. The method comprises the following steps: a first node determines M measurement time domain resources, determines M segments of time domain resources according to the M measurement time domain resources, determines a channel competition result of the first node in a first competition channel period according to a state of the first node on the kth segment of time domain resource and / or a channel state measurement result on the kth measurement time domain resource, the M measurement time domain resources are used for measuring the channel state, M is an integer greater than 1, the kth time domain resource is one of the M time domain resources, and the kth measurement time domain resource is one of the M measurement time domain resources. In the embodiment of the invention, the measurement time domain resources in the first competition channel period are more, multiple channel state measurement results can be comprehensively considered, the channel competition result can be more accurately determined, and the chance of the first node to compete for the channel is more, so that the first node has higher probability to compete for the channel.

This application provides a communication method and apparatus, relating to the field of communication technology, for ensuring fairness between an ML entity and an SL entity in channel contention. The communication method is applied to an ML entity, which supports a master link and at least one slave link. A backoff counter is configured on the master link, while no backoff counter is configured on the slave links. The communication method includes: the ML entity executing a backoff procedure for the master link based on the backoff counter; when the backoff counter value is 0, the ML entity transmits a first PPDU on each of K first links, where the K first links include the master link and K-1 first slave links, and the first slave links are in an idle state during a first inter-frame interval before the backoff counter value reaches 0. This application is applicable to multi-link channel access processes.

This application provides a channel contention method and a related apparatus. The method includes: After data transmission on a first link is completed or a block acknowledgment corresponding to data is received on the first link, a first non-access point station of a first multi-link device performs clear channel assessment CCA detection on a second link in a first time period, where a start moment corresponding to the first time period is the same as a moment at which the data transmission on the first link is completed; and when the CCA detection on the second link fails, the first non-access point station performs channel contention on the second link based on a second time period.

Embodiments of the present application provide a wireless communication method and a device. An AP has the uplink multi-user sounding capability in a channel contention phase, so that the AP can reasonably select, on the basis of an uplink service demand quantity and a downlink service demand quantity, to grant a TXOP to an STA or an AP, thereby reducing the delay of uplink and downlink data transmission and relieving the delay jitter. The wireless communication method comprises: a first STA sends a first PPDU, the first STA having uplink data to be transmitted, wherein the first PPDU comprises a first MAC frame and a first identification field, the first MAC frame is used for contending for a channel, and the first identification field is used for indicating an AID of the first STA; or, the first PPDU comprises a second MAC frame, the second MAC frame is used for contending for a channel, and the second MAC frame is further used for triggering all STAs receiving the second MAC frame to feed back whether a medium needs to be acquired so as to transmit uplink data.

The application relates to a channel competition method and device, which can limit the station from frequently initiating competition, thereby reducing interference on other devices. In the method, a station acquires a channel competition rule and performs channel competition according to the channel competition rule, and the channel competition rule is a first rule, a second rule, a third rule or a fourth rule. The first rule comprises that the number of RTS frames sent during the running of each competition timer in a plurality of competition timers is less than or equal to a first threshold value; the second rule comprises that channel competition is performed after a target time length; the third rule comprises that the station is prohibited from sending a clear to send (CTS) frame with a destination address of the station; and the fourth rule comprises that the station transmits an RTS frame as an initial frame to start a TXOP before the MSD timer expires, and the number of started TXOPs is less than or equal to a second threshold value. The fourth rule further comprises at least one of the following: a CCA-ED threshold before the MSD timer expires is dot11OFDMEDThreshold, or a condition for resetting the MSD timer to 0 is not set.

The application provides a 5G terminal power consumption optimization method and device based on discontinuous reception and a medium. The method comprises the following steps: constructing a Markov decision model according to the discontinuous reception state cycle length of a 5G terminal and the terminal state transition action, and obtaining the corresponding system time delay and energy saving trade-off benefit based on different terminal state transition actions; obtaining the target discontinuous reception activation state cycle length and the target terminal short sleep cycle length corresponding to the maximum state value of the Markov decision model according to the system time delay and the energy saving trade-off benefit, and constructing the optimal discontinuous reception cycle parameters corresponding to the 5G terminal; and sending the optimal discontinuous reception cycle parameters to the 5G terminal, so that the 5G terminal performs power consumption optimization adjustment according to the optimal discontinuous reception cycle parameters. The application reduces the additional power consumption and time delay overhead caused by beam search and channel competition of the 5G terminal in the unlicensed frequency band.

This application provides a channel contention method and a related apparatus.SOLUTION: The method includes: After data transmission on a first link is completed, or after a block acknowledgement corresponding to data on the first link is received, a first non-access point station of a first multi-link device performs clear channel assessment CCA detection on a second link within first duration, where a start moment corresponding to the first duration is the same as a moment at which the data transmission on the first link is completed, and when the CCA detection on the second link fails, the first non-access point station performs channel contention on the second link based on second duration. By means of implementation of the embodiments of this application, collision and interference between frames are avoided during channel contention.SELECTED DRAWING: Figure 8

The embodiment of the invention provides a communication method and device. The method comprises the steps that a first node determines M measurement time domain resources which are not overlapped in a first competition channel period; the first node determines a channel competition result of the first node in the first competition channel period according to a channel state measurement result on at least one measurement time domain resource in the M measurement time domain resources; the first competition channel period comprises L time domain resource units, each time domain resource unit comprises P continuous first symbols and Q continuous second symbols, and the P continuous first symbols are located before the Q continuous second symbols; each measurement time domain resource comprises N time domain resource units; m, P and Q are positive integers, L is an integer greater than N, and N is an integer greater than or equal to 2. According to the method, the first node can effectively perform channel measurement in a competition channel period, compete for a channel according to a channel measurement result, and use the channel obtained by competition for communication.

The invention relates to the technical field of data transmission, and discloses a service-based wireless Internet of Things terminal adaptive channel competition and scheduling method, which comprises the following steps of: after service data is acquired, matching service priority, processing data volume and resource calling volume; determining a first channel competition coefficient based on the service priority, marking a to-be-selected channel, and calculating a second channel competition coefficient by combining the average data volume and the average call volume of the service data in the to-be-selected channel; and weighting to obtain a comprehensive competition coefficient, selecting a final channel according to the sequence, and selecting a channel of which the transmission frequency is lower than a reference value if the difference is equal. According to the method, service differentiation self-adaptive scheduling is realized, the transmission quality of high-priority services is guaranteed preferentially, the channel conflict probability is effectively reduced, the utilization rate of wireless spectrum and channel resources is improved, and the network transmission efficiency and reliability are optimized.

The present application provides a communication method and a related apparatus. The method is applied to a power line communication-based communication network. In a frame transmitted to a first communication apparatus, a second communication apparatus not only occupies a first frequency resource, but also occupies a second frequency resource, so that a third communication apparatus easily detects that a channel corresponding to the frame is occupied, thereby reducing the probability of collisions during channel contention.

This disclosure describes methods, systems, and devices for wireless communications in which a transmitting device using a shared radio frequency spectrum can perform a listen-before-talk (LBT) procedure for at least a minimum defer time and, after successfully completing the LBT procedure, can occupy the spectrum for a duration of a channel occupancy time (COT). The transmitting device can interrupt transmission for a gap period during the COT and resume transmission after the gap period without performing another LBT procedure. The minimum defer time can be based on a periodicity of channel reservation signals transmitted by one or more other devices using the shared radio frequency spectrum. In some cases, the transmitting device can schedule one or more receiving devices with resources for transmission during the COT, and the receiving devices can perform LBT that is not adjacent to associated transmissions.

Provided is a method for wireless communication. The method is performed by a station (STA) having uplink (UL) data to be transmitted, and includes: transmitting a first medium access control (MAC) frame, wherein the first MAC frame is configured for channel contention, and a channel contention result corresponding to the first MAC frame is associated with grouping information of the STA.

Embodiments of the present disclosure provide a method, device, storage medium and program product for determining bandwidth. In the method for determining bandwidth of the present disclosure, a first device receives a physical layer protocol data unit (PPDU) from a second device, wherein the PPDU is used to determine a scrambling sequence and a service field, a first set of bits in the scrambling sequence and a second set of bits in the service field are used to indicate bandwidth. Subsequently, if the second set of bits is checked to be wrong, the first device determines the bandwidth of the communication between the first device and the second device based on the first set of bits. Embodiments of the present disclosure do not give up the determination of the bandwidth used for communication in the case that the second set of bits is checked to be wrong, thereby avoiding unwanted retransmission or channel contention.

The invention relates to the technical field of wireless communication, in particular to a method for optimizing a WIFI7 wireless router CSMA-CA back-off algorithm based on RSSI (Received Signal Strength Indicator). The method comprises the following steps: a wireless terminal continuously monitors the state of a wireless channel through a carrier monitoring multi-channel access mechanism, immediately sends a data frame when judging that the channel is in an idle state, and triggers initialization of a backoff process when detecting that the channel is in a busy state; and acquiring a received signal strength indication (RSSI) value of the wireless terminal in real time, and performing discretization processing based on an absolute value of the RSSI value. According to the invention, a self-adaptive channel competition mechanism based on a physical layer state is constructed by introducing received signal strength indication (RSSI) into a backoff window value calculation kernel. Specifically, a discretization function Round (RSSI / 10) is adopted to quantize a signal quality level, and a random disturbance factor bound with an MAC address is superposed, so that a high-quality terminal dynamically obtains a smaller backoff window value.

The invention provides a communication method and device, which are used for reducing the channel competition influence of a first STA on a scheduled STA in an OBSS by limiting the channel access of the first STA in a BSS where a first AP is located, so as to improve the success rate of the scheduled STA in the OBSS to obtain a channel. In the method, a first AP generates a first frame, the first frame comprises r-TWT SP information and first indication information, and the first indication information is used for indicating that the r-TWT SP information is r-TWT SP information of an OBSS of a BSS where the first AP is located; wherein the r-TWT SP information of the OBSS is used for indicating whether a first STA stops TXOP at a starting moment indicated by the r-TWT SP information of the OBSS, and the first STA is an STA in a BSS where the first AP is located; and the first AP sends the first frame. The application is applied to a wireless local area network system supporting a next generation WiFi protocol of IEEE 802.11 ax, such as 802.11 be, or an 802.11 series protocol of EHT and the like.

The present invention provides a communication method and communication device that optimize channel access parameters. [Solution] The first station sends a request frame to the access point. The request frame is used to request preferential access to the channel. The request frame carries a first parameter set. The first parameter set includes Multi-User Extended Distributed Channel Access (MU EDCA) parameters that the first station intends to use to perform channel contention. The first station, which is an Emergency Alert Communications Service (EPCS) station, also receives a response frame to the request frame and performs channel access by using the MU EDCA mechanism.

The application belongs to the technical field of speech recognition and processing, and relates to a whole-house intelligent speech control method based on semantic compression and dynamic priority. A large language model is used to analyze user speech instructions to obtain a control intention, a target device and an adjustment parameter. The control intention and the adjustment parameter are analyzed to determine an instruction priority. The control intention and the adjustment parameter are encoded to generate a compressed code. When the whole-house network load exceeds a set threshold, the instruction priority is mapped to a channel access parameter of a medium access control layer, and the channel competition priority of a compressed data packet is dynamically adjusted. The transmission timing is determined according to the adjusted priority, and the data packet is sent to the target device based on a 2.4G wireless protocol according to the timing. If the response instruction data packet is lost, the instruction priority is improved, and the channel access parameter is remapped. Through the cooperation of semantic compression and dynamic priority, the transmission is lightweight and real-time while the semantic understanding depth is maintained.

The invention provides a communication method and device, which are used for reducing the channel competition influence of a first STA on a scheduled STA in an OBSS by limiting the channel access of the first STA in a BSS where a first AP is located, so as to improve the success rate of the scheduled STA in the OBSS to obtain a channel. In the method, a first AP generates a first frame, the first frame comprises r-TWT SP information and first indication information, and the first indication information is used for indicating that the r-TWT SP information is r-TWT SP information of an OBSS of a BSS where the first AP is located; wherein the r-TWT SP information of the OBSS is used for indicating whether a first STA stops TXOP at a starting moment indicated by the r-TWT SP information of the OBSS, and the first STA is an STA in a BSS where the first AP is located; and the first AP sends the first frame. The application is applied to a wireless local area network system supporting a next generation WiFi protocol of IEEE 802.11 ax, such as 802.11 be, or an 802.11 series protocol of EHT and the like.

Provided is a wireless communication method and a device. In the wireless communication method, a first STA sends a first PPDU, the first STA having uplink data to be transmitted, the first PPDU includes a first MAC frame and a first identification field, the first MAC frame is used for channel contention, and the first identification field is used for indicating an AID of the first STA; or, the first PPDU includes a second MAC frame, the second MAC frame is used for channel contention, and triggering all STAs receiving the second MAC frame to feed back whether a medium needs to be acquired so as to transmit uplink data.

The invention relates to intelligent equipment, a distributed communication method and device and a medium, and the method comprises the steps: responding to a data transmission instruction used for transmitting target data, and determining a corresponding communication priority according to the equipment type of local intelligent equipment; the data transmission state of the communication bus is determined in real time by carrying out carrier monitoring detection on a physical layer signal of a local communication interface accessed to the communication bus; when the data transmission state is busy, triggering a corresponding channel competition strategy based on the communication priority, and completing transmission of target data transmission after retreating or preempting a channel according to the corresponding communication priority; and when the data transmission state is idle, directly transmitting the target data to the communication bus. According to the invention, centerless and priority-based self-adaptive intelligent communication can be realized in an intelligent home network.