28 results about "Multi access" patented technology

The application discloses a modulation and coding adaptive selection method for a mobile ad hoc network based on separation of a control plane and a data plane. In the mobile ad hoc network based on separation of the control plane and the data plane, a carrier sense multiple access (CSMA) mechanism is adopted in a control time slot to compete for sending fused situation information of itself, so as to complete survey and perception of neighbor nodes. The situation information includes link transmission quality and node queue length. In the data plane, the CSMA mechanism is also adopted, but the situation information of the control plane needs to be utilized to form certain 'network order', so as to reduce the decline of throughput caused by error packets and collision. On the basis of a traditional rate adaptive algorithm based on a signal-to-noise ratio (SNR), the algorithm is improved and applied to a mobile ad hoc network device based on separation of the control plane and the data plane.

A method can include sending, by a core network device comprising an access and mobility management function (AMF) to a wireless device, a first non-access stratum (NAS) message via a first base station of a first access of the wireless device. The method can also include sending, by the AMF to the wireless device, a second NAS message via a second base station of a second access of the wireless device. The method can further include receiving, by the AMF from the first base station of the first access, first radio resource control (RRC) configuration parameters of the wireless device for the first access. The method can additionally include sending, by the AMF to the second base station of the second access, the first RRC configuration parameters of the wireless device for the first access while maintaining the first access and the second access for the wireless device.

At least one aspect of the technical solutions is directed to a system. The system can include a first access point configured to generate a preamble for a network packet of a wireless local area network (WLAN). The first AP can be configured to include, into the common field of the preamble, one or more basic service sets (BSS) colors associated with the first AP and the second AP. The first AP can be configured to include, into a subfield of the user field for indicating error correction coding, an indication of association of the client device with the first AP or the second AP based on the one or more BSS colors. The first AP can be configured to transmit the network packet to be processed by the client device for CBF communication of the network packet according to the one or more BSS colors and the indication.

Disclosed herein are systems, methods, and computer-readable media for enhancements to 5G Access Transport Steering Switching & Splitting (ATSSS) rules. In one aspect, a method includes receiving, at a network controller, a request for a Multi-Access Protocol Data Unit (MA-PDU) session from a user device, the request including a “Multi access multi PLMN” flag for requesting multiple Public Land Mobile Network (PLMN) sessions; generating, at the network controller, an access transport steering switching and splitting (ATSSS) rule for steering traffic associated with the user device between at least two PLMNs once the multiple PLMN sessions are established between the user device and the at least two PLMNs; and sending the steering rule to the user device to be used for splitting uplink network traffic transmitted between the user device and the at least two PLMNs.

A computer-implemented method for an IEEE 802.15.4 device is provided based on a suspendable carrier sense multiple access with collision avoidance (CSMA / CA) control program and a standard CSMA / CA control program for an IEEE 802.15.4 network consisting of IEEE 802.15.4 devices. The computer-implemented method is provided on the IEEE 802.15.4 device and causes a processor of the IEEE 802.15.4 device to perform steps including determining permission for back-off suspend and an intention of the IEEE 802.15.4 device to execute a back-off suspend, and selecting a suspendable CSMA / CA control program if back-off suspend is permitted and the IEEE 802.15.4 device intends to execute a back-off suspend. The suspendable CSMA / CA control program is configured to perform active CCA within each unit backoff period, suspend backoff if the channel is detected to be busy, perform CCA if the backoff is completed, transmit a frame if the detected channel condition is clear, increment a number of backoffs (NB) if the detected channel condition is busy, determine whether NB exceeds a threshold macMaxCSMABackoffs, increment a number of retransmissions (NR) if NB exceeds the threshold macMaxCSMABackoffs, and discard the frame if NR exceeds a threshold macMaxFrameRetries.

A computer-implemented method for an IEEE 802.15.4 device is provided based on a suspendable carrier sense multiple access with collision avoidance (CSMA / CA) control program and a standard CSMA / CA control program for an IEEE 802.15.4 network consisting of IEEE 802.15.4 devices. The computer-implemented method is provided on the IEEE 802.15.4 device and causes a processor of the IEEE 802.15.4 device to perform steps including determining permission for back-off suspend and an intention of the IEEE 802.15.4 device to execute a back-off suspend, and selecting a suspendable CSMA / CA control program if back-off suspend is permitted and the IEEE 802.15.4 device intends to execute a back-off suspend. The suspendable CSMA / CA control program is configured to perform active CCA within each unit backoff period, suspend backoff if the channel is detected to be busy, perform CCA if the backoff is completed, transmit a frame if the detected channel condition is clear, increment a number of backoffs (NB) if the detected channel condition is busy, determine whether NB exceeds a threshold macMaxCSMABackoffs, increment a number of retransmissions (NR) if NB exceeds the threshold macMaxCSMABackoffs, and discard the frame if NR exceeds a threshold macMaxFrameRetries.

Aspects of the present disclosure are directed to a hybrid structure for switching between traffic-first mode and access point-first mode when coordinating traffic transmission among access points in a wireless network. In one aspect, a multi-access point coordination method includes determining, at an access point, whether a triggering condition exists for switching between a traffic-first mode and an access point-first mode or vice-versa when coordinating traffic transmission with other neighboring access points, wherein the triggering condition is associated with Start Time Protection Rules (STPRs) of the access point and the other neighboring access points; and switching from one of the traffic-first mode and the access point-first mode to another one of the traffic-first mode and the access point-first mode upon detecting the triggering condition.

Disclosed herein are systems, methods, and computer-readable media for enhancements to 5G Access Transport Steering Switching & Splitting (ATSSS) rules. In one aspect, a method includes receiving, at a network controller, a request for a Multi-Access Protocol Data Unit (MA-PDU) session from a user device, the request including a “Multi access multi PLMN” flag for requesting multiple Public Land Mobile Network (PLMN) sessions; generating, at the network controller, an access transport steering switching and splitting (ATSSS) rule for steering traffic associated with the user device between at least two PLMNs once the multiple PLMN sessions are established between the user device and the at least two PLMNs; and sending the steering rule to the user device to be used for splitting uplink network traffic transmitted between the user device and the at least two PLMNs.

Systems and methods for facilitating an inroute transmission of data are disclosed. A system may include a processor and a memory storing instructions, which when executed by the processor, may cause the processor to receive information pertaining to a bandwidth capacity of a communication channel for an inroute transmission of data from a terminal of a plurality of terminals. The processor may determine, based on the received information and using an asynchronous scrambled coded multiple access (ASCMA) technique, a bandwidth allocation for the inroute transmission of data. The inroute to transmission may be in a form of ASCMA transmission of one or more encapsulated group burst packets.

The present disclosure relates to 5G or 6G communication systems for supporting higher data transmission rates than 4G communication systems such as Long-Term Evolution (LTE). According to an embodiment of the present disclosure, a proxy device for supporting a multi-access connection may generate a first connection between a client and the proxy device, and a second connection between the proxy device and a server, receive first data packets from the client via at least one subflow constituting the first connection, obtain, based on at least one piece of subflow identification information included in a header of the first data packets, at least one piece of sequence identification information corresponding to the at least one piece of subflow identification information, generate a second data packet consisting of a header including the at least one piece of sequence identification information, and a payload of the first data packets, and transmit the second data packet to the server via the second connection.

Aspects of the present disclosure are directed to a hybrid structure for switching between traffic-first mode and access point-first mode when coordinating traffic transmission among access points in a wireless network. In one aspect, a multi-access point coordination method includes determining, at an access point, whether a triggering condition exists for switching between a traffic-first mode and an access point-first mode or vice-versa when coordinating traffic transmission with other neighboring access points, wherein the triggering condition is associated with Start Time Protection Rules (STPRs) of the access point and the other neighboring access points; and switching from one of the traffic-first mode and the access point-first mode to another one of the traffic-first mode and the access point-first mode upon detecting the triggering condition.

Various aspects of the present disclosure relate to single-carrier sparse code multiple access (SC-SCMA), where multiple user equipment (UE) are multiplexed over one carrier frequency and multi-dimensional codewords are transmitted over multiple time units, e.g., symbols, slots, and so forth. Two or more UEs can spread their associated multi-dimensional codewords over the same time symbols or slots. At the receiver side, frequency domain equalizer (FDE) and a modified multi-UE detection architecture can be used to efficiently detect and decode each UE's data.

A method can include sending, by a wireless device, a first registration request message comprising a first access identifier for a first access path. The method can also include receiving, after the registration request message is sent, a registration accept message indicating allowance of a second access path. The method can further include determining a second access identifier based on the registration accept message indicating support of registration of the second access path. The method can additionally include sending, after the registration accept message is received, a second registration request message comprising the second access identifier for the second access path.

The invention discloses a resource optimization and access protocol design method for dual-medium communication, which comprises the following steps: a relay node broadcasts a beacon frame carrying synchronization information, and a source node sends a management frame carrying priority information to the relay node; the source node selects a power line communication channel or a wireless communication channel through a channel evaluation algorithm according to the service type; the source node accesses the relay node based on a first frame structure, the first frame structure comprises a random access stage, and an access mode of the source node is confirmed based on priority information; the relay node dynamically determines a relay scheme based on a signal-to-noise ratio and double thresholds, and feeds back a decision through a first field in an ACK frame structure; a relay node sends data to a destination node through a superframe formed by mixing a carrier sense multiple access / collision avoidance (CSMA / CA) protocol and a time division multiple access protocol, wherein the superframe comprises a non-competitive stage and a competitive stage. Thus, the data is processed based on the priority, the flexibility of the relay scheme is enhanced, and the reliability and efficiency of data transmission are improved.

The present disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. According to one embodiment, a method by user equipment (UE) in a wireless communication system may include the steps of: transmitting a request message for establishing a protocol data unit (PDU) session, which includes IP version information of the UE, to a network entity; and receiving an acceptance message for establishing the PDU session from the network entity.

Examples described herein relate to a network device that includes at least one network interface and circuitry. In some examples, the circuitry is to transmit one or more packets for Integrated Access Backhaul (IAB) via a 3rd Generation Partnership Project (3GPP)-consistent wireless network and transmit one or more other packets for IAB to Multi Access Management Services (MAMS) over Generic Multi-Access (GMA) over a second network.

This application provides a method, terminal, and network for establishing session multiple access, relating to the field of communication technology. The method includes: a proxy call session control function node receiving a SIP message from an IMS target session and determining the media component information of the IMS target session; sending a policy authorization request message carrying the media component information to a policy control function node; the policy control function node generating policy control and charging rules based on the policy authorization request message and sending them to a session management function node; the session management function node generating access traffic redirection, handover, and separation ATSSS rules for the IMS target session and N4 rules for the user plane function node based on the policy control and charging rules, thereby enabling the terminal and user plane function node to perform media stream splitting. This method can establish multiple access links for IMS session services, improving the data transmission quality of multiple media services.

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.

A method can include establishing, by a wireless device, a first RRC connection over a first access and a second RRC connection over a second access. The method can also include releasing, by the wireless device, the first RRC connection over the first access while staying in a CM connected state based on maintaining or keeping the second RRC connection over the second access. The method can further include transitioning, by the wireless device, from the CM connected state to a CM idle state in response to releasing the second RRC connection over the second access while the first RRC connection over the first access being released.

Provided is a computer-implemented method for an IEEE 802.15. 4 device, the computer-implemented method being used for an IEEE 802.15. 4 network composed of the IEEE 802.15. 4 device based on a suspensible carrier sense multiple access / collision avoidance (CSMA / CA) control program and a standard CSMA / CA control program. The computer-implemented method is provided on an IEEE 802.15. 4 device, and causes a processor of the IEEE 802.15. 4 device to perform the steps including determining permission of a backoff suspend and an intention of the IEEE 802.15. 4 device to perform the backoff suspend, and selecting a suspend CSMA / CA control program if the backoff suspend is permitted and the IEEE 802.15. 4 device intends to perform the backoff suspend. The suspend CSMA / CA control program is configured to perform active CCA in each unit backoff period, and suspend backoff if a channel is detected to be busy, perform CCA when backoff is completed, transmit a frame when a detected channel state is an idle state, or increments a number of backoff (NB) when the detected channel state is a busy state, determine whether the NB exceeds macMaxCSMABackoff, and transmit a frame when the detected channel state is an idle state. The number of retransmissions (NR) is incremented when the NB exceeds the macMaxCSMABacks, and the frame is discarded when the NR exceeds the macMaxFrameRetries.

The present disclosure relates to method and device for performing Multi Access Point Coordination (MAPC). The method includes determining, by a first Access Point (AP) (102), occurrence of at least one of a plurality of MAPC scenarios based on a correlation of one or more network parameters of the first AP and one or more network parameters received from a second AP (104). Further, one of a plurality of MAPC techniques applicable for MAPC with the second AP is selected based on the determined at least one MAPC scenario. Subsequently, the MAPC is performed using the selected MAPC technique for sharing a Transmission Opportunity (TXOP) with the second AP. The present disclosure intelligently and opportunistically selects between the MAPC techniques based on a real-time network scenario for reducing interference.

A target is outputted to an ideal position in 3D space. A viewer indicates the apparent position of the target, and the indication is sensed. An offset between the ideal and apparent positions is determined, and an adjustment determined from the offset such that the apparent position of the ideal position with the adjustment matches the ideal position without the adjustment. The adjustment is made to the first entity and / or a second entity, such that the entities appear to the viewer in the ideal position. The indication may be monocular with a separate indication for each eye, or binocular with a single viewer indication for both eyes. The indication also may serve as communication, such as a PIN input, so that calibration is transparent to the viewer. The method may be continuous, intermittent, or otherwise ongoing over time.

The invention discloses an SOC (system on chip) multi-access cache subsystem based on a TDM (time division multiplexing) technology in the technical field of data storage. The SOC multi-access cache subsystem comprises an access source module, an address decoding preprocessing module, a TDM control module and an SRAM (static random access memory) group module, wherein the access source module comprises a plurality of access sources; the SRAM group module comprises a plurality of SRAM banks; the access source initiates an access request, the address decoding preprocessing module converts a source access logic address into an address form convenient to manage by the TDM control module, the TDM control module schedules cache access of each access source and performs cyclic access in banks and between banks according to a time slot access sequence, and point-to-point connection between each access source and a cache is realized. According to the SOC multi-access cache subsystem, the access sources and the cache are connected in a point-to-point mode through the time division multiplexing technology, different access sources are accessed in a staggered mode, the continuous high-bandwidth capacity of the cache subsystem can be greatly improved, data link transmission delay is greatly reduced, and resource consumption of the cache subsystem is greatly reduced.

The invention belongs to the technical field of wireless communication networks, and particularly relates to a monitoring data transmission method and system based on a wireless network, and the method comprises the steps: collecting the internal force data of a steel support and the electromagnetic interference data of a channel environment; determining the initial sending probability of each wireless sensor node; constructing a historical time window sliding queue of the wireless sensor nodes, and determining an interference time sequence smoothing factor and a final sending probability; and performing access control and data transmission scheduling on the wireless sensor nodes by using the optimized p-persistent carrier monitoring multi-channel access algorithm. According to the invention, by analyzing the numerical value change characteristics of the steel support internal force data and the electromagnetic interference data, the transmission probability of the wireless sensor node is adaptively optimized, continuous strong mechanical electromagnetic interference is effectively avoided, the network anti-interference capability is enhanced, and the low-delay, safe and stable transmission of the engineering high-risk early warning monitoring data is ensured.

The invention relates to a solution for securing data transmission when multiple client applications (11-1n) in a network access at least one central service (3) provided by a server (2) via an optical multiple access channel (MAC) (4). For this purpose, the client applications (11-1n) are grouped into application groups, at least in pairs. Each client application (11-1n) in an application group superimposes its optical carrier signal, before modulating it with the data to be transmitted to the server (2), with a photonic signal of a quantum state, forming a quantum-classical signal. This photonic signal is entangled with at least one quantum state whose photonic signal is used by another client application (11-1n) of the same application group to superimpose its carrier signal used for data transmission to the server (2).In server (2), a quantum mechanical signal component is separated from the incoming, data-modulated quantum-classical signals. The separated quantum mechanical signal components of each application group are checked in server (2) by means of a quantum mechanical measurement to ensure that the entanglement of their quantum states persists, thus confirming the integrity of the transmitted data.