Abstract: The present disclosure relates to a data flow forwarding abnormality detection method. In one example method, a switching device through which a to-be-detected data flow passes is determined by a controller. At least one flow entry in the switching device that matches the to-be-detected data flow is obtained. The at least one flow entry comprises actual traffic and a match field. The actual traffic is a value of a counter corresponding to the match field. An overdetermined equation set is established based on the actual traffic and theoretical traffic of a data flow in the switching device that matches the match field. Based on the overdetermined equation set, a determination is made on whether the at least one flow entry is abnormal.

Abstract: Embodiments provide a switching threshold setting method and apparatus, and a device, applied to a wireless local area network. A switching threshold of a terminal and a switching threshold of a wireless access device that match each other are set, so that when the wireless access device is to release an association with the terminal, the terminal has started roaming to find a target wireless access device.

Abstract: A radio frequency (RF) antenna unit is described. The RF antenna unit includes a feed portion, at least first and second selective grounding portions each configured to selectively enable or disable an electrical coupling to a substrate, and at least first and second conductive arms. The first conductive arm provides electrical conduction between the feed portion and the first grounding portion, extending from the first grounding portion towards and beyond the feed portion. The second conductive arm provides electrical conduction between the feed portion and the second grounding portion, extending from the second grounding portion towards and beyond the feed portion. First and second inverted F antenna (IFA) elements are defined by the feed portion, the respective first or second grounding portion and the respective first or second conductive arm. The feed portion is common to both the first and second IFA elements.

Abstract: This application provides a synchronization signal sending method and receiving method, and an apparatus. In the method, a base station determines a frequency domain position of a target frequency resource based on a frequency interval of synchronization channels, wherein the frequency interval of synchronization channels is 2m times a predefined frequency resource of a physical resource block, and m is a preset nonnegative integer. The base station sends a synchronization signal by using the target frequency resource.

Abstract: Methods and devices are provided to enable a cooperating group of user equipments (UEs) to access a second spectrum band as frame based equipment (FBE) for device-to-device (D2D) sidelink transmission within the group. In an embodiment, a UE operating as a cooperating UE (CUE) in a cooperating group of UEs receives a group-specific CPC message from the network over a first spectrum band, the group-specific CPC message comprising information related to channel access for transmission of traffic intended for a target UE (TUE). The UE receives traffic intended for the TUE from the network over the first spectrum band and accesses a second spectrum band as FBE in accordance with a set of channel access parameters corresponding to the traffic to relay the traffic to the TUE via D2D sidelink transmission over the second spectrum band.

Abstract: An improved method of computer communication and networking with error-correction encoding and transmission using a punctured polar code construction that is based on polar code decomposition is provided. Advantageously, this allows sorting of a reliability sequence to be performed for a reduced-length vector to identify the information bit positions in the reduced-length polar code vector. Polar code decomposition is used to determine a number of information bits allocated to given reduced-length vector (e.g., K0 and K1). The polar code construction is a function of a puncturing pattern. In some embodiments, the puncturing pattern is a shortening pattern.

Abstract: A method and apparatus for supporting node-level tunneling for mobile user equipment (UE) in a wireless communication network such as a 5th generation network.

Abstract: A method includes: allocating, by an eNB, a same uplink shared resource to m UEs, where m?2; sending, by the UE to the eNB by using the uplink shared resource, uplink data that includes an identifier of the UE and/or buffer status information corresponding to the UE; generating according to successfully received uplink data, feedback information that includes the UE identifier and/or an uplink scheduling grant; and sending, by the eNB, the feedback information by using a MAC PDU, or sending acknowledgement information by using a downlink resource indicated by a combination of an agreed feedback location and an offset. A problem that an eNB cannot correctly send feedback information to each UE when the multiple UEs send uplink data by using a same uplink shared resource and DM-RS is resolved, so that each UE is clear about whether the uplink data of the UE is successfully sent.

Abstract: Current HARQ procedures for grant-based uplink transmissions may not be suitable for implementations in which a UE can simultaneously transmit multiple transport blocks (TBs) to a base station. However, in some scenarios, such as in some grant-free uplink transmission schemes, a UE may simultaneously transmit multiple TBs. Systems and methods are disclosed herein for performing HARQ for situations in which a UE simultaneously transmits multiple TBs to a base station. By using the systems and methods described herein, HARQ may therefore be performed in such situations.

Abstract: Embodiments of the present disclosure disclose an SDN-based ARP implementation method and apparatus. The method includes: receiving, by a controller, an ARP request sent by a first switch, and when it is determined that no ARP entry corresponding to the ARP request exists locally, sending, to the first switch, an instruction configured to instruct the first switch to flood the ARP request. In this way, the ARP request can be broadcast to an entire network by means of message forwarding between switches.

Abstract: A data transmission method, a wireless network device, and a communications system are provided. The method includes: sending, by a first wireless network device, at least two channels for common information on a same carrier, where the at least two channels for common information include a first channel for common information and a second channel for common information, the first channel for common information and the second channel for common information are on different subbands of the same carrier, and the common information includes at least one of a synchronization signal, a broadcast signal, or a system message.

Abstract: This application relates to the field of wireless communications technologies, and in particular, to a terminal device, an access network device, an air interface configuration method, and a wireless communications system, so as to establish a connection between a terminal device and two radio access network devices. A second access network device in a radio access network determines air interface configuration information of an air interface between a terminal device and the radio access network, and sends a first air interface configuration message comprising the air interface configuration information to a first access network device in the radio access network, where the first access network device and the second access network device use different wireless communications standards.

Abstract: A call hold method includes receiving a call hold request sent from a peer end; returning a 200 OK message to the peer end; receiving a user instruction for sending a call hold request to the peer end; determining whether an acknowledgement message based on the call hold request of the peer end is received from the peer end; and processing, based on an acknowledgement message determining result, the user instruction for sending a call hold request to the peer end. Accordingly, when a user has a call hold request, a mobile terminal first determines whether a procedure based on the call hold request of the peer end is completed at the peer end, and then determines to process the call hold request of the user, thereby preventing a call drop.

Abstract: When a Real-Time Transport Protocol (RTP) packet receiving manner of a user equipment (UE) is switched between a unicast transmission manner and a multicast transmission manner, a group communication service application server (GCS AS) obtains a time difference between a time at which the UE receives a first RTP packet before the switching and a time at which the UE receives a second RTP packet after the switching. The GCS AS calculates a delay difference, according to the time difference, of RTP packet transmissions in different transmission manners, and adjusts, according to the delay difference, timing for RTP packet transmission in the unicast transmission manner.

Abstract: A data communication method, a communication system, and related devices are configured to establish a transaction identifier (TI) in a user equipment (UE). The data communication method includes the following steps. A mobility management entity (MME) receives a request message and obtains ability information of the UE. If the UE has an ability to access a Universal Terrestrial Radio Access Network/GSM/EDGE Radio Access Network (UTRAN/GERAN), the MME generates the TI. A communication system and related devices are also provided. Thus, the TI is effectively established in the UE, so as to ensure normal processing of the UE.

Abstract: Networks use channel state information reference signals (CSI-RSs) to measure channel conditions between a user equipment (UE) and a transmit/receive point (TRP) in a cell. The resources configured for the transmission of a CSI-RS may be indicated to the UE using higher layer signaling. Measurement results for a CSI-RS are transmitted by the UE in the form of a measurement report. A need exists for signaling designs that aim to provide more flexible and efficient signaling of CSI-RS resource configurations and measurement reports. In some embodiments, CSI-RS resource configurations and measurement reports are resource-specific. The CSI-RS resource configurations may be independent from an identifier of the cell that the CSI-RS is transmitted from, and the measurement reports do not necessarily include the identifier of the cell. Advantages may include allowing the network to freely allocate CSI-RS resources without the need for reconfiguration at the UE side.

Abstract: The disclosure relates to user equipment (UE) (700), comprising: a transceiver (701) configured to transceive radio resource control (RRC) messages between the UE (700) and a radio access network (RAN); and a radio resource controller (702) configured to activate an operation mode of the UE (700) responsive to processing a first sequence (328) of RRC messages when a non-congestion situation is indicated by the RAN, wherein the radio resource controller (702) is configured to activate the operation mode of the UE (700) responsive to processing a second sequence (525, 625) of RRC messages when a special situation, in particular a congestion situation or a power saving situation to reduce the energy consumption, is indicated by the RAN, wherein a latency for processing the second sequence (525, 625) of RRC messages is less than a latency for processing the first sequence (328) of RRC messages.

Abstract: A NAT entry management method and a NAT device are disclosed. The method includes: receiving and storing, by a NAT device, a connection parameter, where the connection parameter includes an address of a controller; receiving a packet sent by a network device, where a source address of the packet is a private address of the network device and a destination address of the packet is the address of the controller; performing NAT on the packet, where an after-NAT source address of the packet is a public address; and when a static entry condition is met, generating a target static NAT entry, where the static entry condition includes that the destination address of the packet is the address of the controller. This can prevent aging of the NAT entry from affecting communication between the network device and the controller.

Abstract: The disclosure relates to a control node. The first control node comprises a transceiver configured to receive a first set of Channel State Information, CSI, comprising CSI for radio channels between a plurality of first remote radio heads and a plurality of user devices, a processor configured to determine a first association based on the first set of CSI, wherein the first association comprises an association between the plurality of first remote radio heads and the first control node. Furthermore, the disclosure also relates to a corresponding method, a cellular wireless communication system, and a non-transitory computer readable medium.