Abstract: This application provides a key distribution and authentication method, system, and an apparatus. The method includes: a service center server distributes different keys to terminal devices, and then the terminal devices perform mutual authentication with the network authentication server based on respective keys and finally obtain communication keys for communication between the terminal devices and a functional network element. This provides a method for establishing a secure communication channel for the terminal device, having a broad application range.

Abstract: A method for devices without SIM card (SD) to communicate directly with a core network. The method may be performed in the following matter. The SD registers with the core network through a cellular device (MD) in order to obtain a credential for the SD. The credential comprises Access ID, key, and control parameters. The SD then performs a mutual authentication directly with the core network using the credential. If the SD authenticates successfully with the core network, the SD is granted access to the servers via the core network.

Abstract: Embodiments of the invention provide methods and apparatuses for session key generation, which use Diffie-Hellman procedure in both user equipment and network to prevent an attacker from breaking the session key by simply listening to signal exchanges passively when the attacker possesses credentials of a USIM card.

Abstract: In various embodiments, a method of controlling a station may be provided. The method may include receiving a first signal from an access point, the first signal including information indicating a time period. The method may further include deactivating the station after receiving the first signal and before expiry of the time period. The method may also include activating the station upon expiry of the time period.

Abstract: According to various embodiments, a radio communication device may be provided. The radio communication device may include: a transmitter configured to transmit a null data packet. The null data packet may include acknowledgement data indicating acknowledgements for a plurality of packets. The null data packet may include a cyclic redundancy check field configured to provide information based on which the null data packet or acknowledgements may be checked for errors. The null data packet may include further information based on which the acknowledgements may be checked for errors.

Abstract: The present invention is directed to a compression device including an identifier determination circuit configured to determine a first identifier value identifying a first communication terminal of a network, and a second identifier value identifying a second communication terminal of the network; a differential determination circuit configured to determine a differential value based on a difference between the first identifier value and the second identifier value; and a compressed string generation circuit configured to insert the differential value into a compressed string. A compression method, a decompression device and a decompression method are also disclosed.

Abstract: The present invention is directed to a compression device including an identifier determination circuit configured to determine a first identifier value identifying a first communication terminal of a network, and a second identifier value identifying a second communication terminal of the network; a differential determination circuit configured to determine a differential value based on a difference between the first identifier value and the second identifier value; and a compressed string generation circuit configured to insert the differential value into a compressed string. A compression method, a decompression device and a decompression method are also disclosed.

Abstract: According to various embodiments, a communication method may be provided. The communication method may include: at least one of sending a first data unit including a physical layer (PHY) header or receiving a first data unit including a PHY header. The PHY header may include at least a field to indicate whether a response data unit is intended to follow the first data unit, and to indicate the type of the response data unit, when a response data unit is intended to follow the first data unit. The type of the response data unit may be used to estimate the duration of the response data unit.

Abstract: A temporary MAC address-based access method, apparatus, and system is provided. A method includes performing wireless communication access authentication on a base station for a non-base station device (STA) by sending, from the base station to the STA, a message indicating whether the base station supports the STA in using a temporary MAC address (TMA), receiving, at the base station, an authentication message in response to the message. The authentication message is sent by the STA to the base station by using the TMA in response to determining that the message indicates that the base station supports the STA in using the TMA. The method further includes parsing out the TMA by using the authentication message and sending an authentication response message to the STA according to the authentication message. The authentication response message indicates whether the base station allows the STA to use the TMA for communication.

Abstract: The present invention is directed to a compression device including an identifier determination circuit configured to determine a first identifier value identifying a first communication terminal of a network, and a second identifier value identifying a second communication terminal of the network; a differential determination circuit configured to determine a differential value based on a difference between the first identifier value and the second identifier value; and a compressed string generation circuit configured to insert the differential value into a compressed string. A compression method, a decompression device and a decompression method are also disclosed.

Abstract: There is provided a method for performing direct mobile-to-mobile communication in a cellular mobile communication system, the cellular mobile communication system having at least two mobile stations and a communication network. The method includes associating a first mobile station and a second mobile station with at least one base station of the communication network, performing neighbor discovery between the first mobile station and the second mobile station for reporting to the at least one base station, detecting the feasibility of direct communication between the first mobile station and the second mobile station, establishing a direct communication link between the at least two mobile stations, allocating identification for communication and flow and resources for a flow between the first mobile station and the second mobile station, synchronizing the flow between the first mobile station and the second mobile station, and sending automatic repeat requests (ARQ) messages.

Abstract: The present invention is directed to a base station including a transceiver configured to communicate with another base station using a radio resource, wherein the radio resource is allocated to the base station to serve communication devices located in a radio cell operated by the base station. A method of operating a base station is also disclosed.

Abstract: A compression device which may include: a subset determination circuit configured to determine a subset of a traffic indication map, the traffic indication map including a plurality of bits, each bit indicating whether data to be transmitted to a respective pre-determined radio communication terminal is present in an access point; a pre-determined bit value determination circuit configured to determine whether the subset includes a bit of a pre-determined bit value; and a compressed string generation circuit configured to insert, if the subset includes a bit of the pre-determined bit value, into a compressed string the subset and an indicator indicating that the subset includes a bit of the pre-determined bit value, and further configured to include, if the subset does not includes a bit of the pre-determined bit value, into the compressed string an indicator indicating that the subset does not include a bit of the pre-determined bit value.

Abstract: According to various embodiments, an access point may be provided. The access point may include: a transmitter configured to transmit restricted access window parameters. The restricted access window parameters may include at least one parameter selected from a list of parameters consisting of: a type parameter indicating which type of restricted access window parameters is represented by the restricted access window parameters; a same group indicator parameter indicating whether a group field is present; and a channel indication presence parameter indicating whether a channel indication is present.

Abstract: A method for enabling a forwarding to network operation in a cellular mobile communication system is described, the cellular mobile communication system comprising a plurality of mobile stations and at least one base station, the method comprising: reporting forwarding capability of a first mobile station of the plurality of mobile stations with the at least one base station; discovering neighboring mobile stations to the first mobile station; selecting a second mobile station from the neighboring mobile stations and establishing a forwarding link between the first mobile station and the second mobile station; allocating radio resources for a link between the first mobile station and the second mobile station; and synchronizing the link between the first mobile station and the second mobile station to establish the forwarding network.

Abstract: A infrastructure station in a cellular mobile communication system, the infrastructure station includes a infrastructure station core configured to provide infrastructure station functionality to a plurality of dependent stations, a topographer configured to discover a network topology and designate a failover topology from the network topology for use in the event that the infrastructure station fails thereby no longer being capable of providing infrastructure station functionality to the plurality of dependent stations, the failover topology comprising failover stations, and a synchronizer configured to periodically provide timing estimates of dependent stations to the failover stations such that network reentry after infrastructure station failure is shorter than normal network entry.

Abstract: According to various embodiments, a radio communication device may be provided. The radio communication device may include: a transmitter configured to transmit a null data packet. The null data packet may include acknowledgement data indicating acknowledgements for a plurality of packets. The null data packet may include a cyclic redundancy check field configured to provide information based on which the null data packet or acknowledgements may be checked for errors. The null data packet may include further information based on which the acknowledgements may be checked for errors.

Abstract: According to various embodiments, an access point may be provided. The access point may include: a transmitter configured to transmit scheduling information for a page. The page may include one or more segments of a Traffic Indication Map (TIM). The scheduling information may include at least one of the following information: an explicit indication of an interval of one or more recurrences of subsequent transmissions of the scheduling information for the page; or information indicating scheduling of transmission of segments of the page including at least: an offset between the transmission of the first segment included in the page scheduling and the transmission of the scheduling information; and the number of blocks in each segment of the page, wherein a block contains a predetermined number of bits of the TIM.

Abstract: According to various embodiments, a communication method may be provided. The communication method may include: at least one of sending a first data unit including a physical layer (PHY) header or receiving a first data unit including a PHY header. The PHY header may include at least a field to indicate whether a response data unit is intended to follow the first data unit, and to indicate the type of the response data unit, when a response data unit is intended to follow the first data unit. The type of the response data unit may be used to estimate the duration of the response data unit.

Abstract: According to various embodiments, a communication method may be provided. The communication method may include: at least one of sending a data unit or receiving a data unit; wherein the data unit is a null-data packet (NDP) and includes at least a physical layer (PHY) header; wherein the PHY header includes a plurality of fields; and wherein the plurality of fields include a sub-type field with at least 3 bits indicating a NDP sub-type of the data unit.