Abstract:
An air pressure massager includes a cylinder; a piston vertically reciprocating inside the cylinder and a main hose connected to the cylinder as a passage supplying and recovering air by vertical reciprocation of the piston. A valve is connected to the main hose to control the supply of air pressure. An air bag connected to the valve performs acupressure using the transferred air pressure. A driving part provides rotational power. A rotary shaft is coupled to the driving part and to a first eccentric cam. A first press bar has an upper end portion that contacts the lower end portion of the first eccentric cam and a lower end portion coupled to the upper end portion of the piston. A second eccentric cam is coupled to the rotary shaft. A second press bar has a lower end portion that contacts the upper end portion of the second eccentric cam.
Abstract:
A dual modem device is disclosed. The present invention includes a first processor configured to communicate with a first communication network, a second processor configured to communicate with a second communication network, and a subscriber identity module configured to store a user equipment identifier corresponding to the first communication network, at least one authentication parameter corresponding to the first communication network and an authentication algorithm corresponding to the first communication network, the subscriber identity module performing the authentication algorithm corresponding to the first communication network, wherein the subscriber identity module is connected to the second processor. The first communication network is an LTE (long term evolution) communication network. And, the second communication network is an eHRPD (enhanced high-rate packet data) communication network.
Abstract:
A method of performing a ranging process between a base station and a mobile station in sleep mode in a wireless access system, wherein the base station provides the mobile station with an initial notification of a periodic ranging time that occurs during a sleep time interval and during which the mobile station is to perform the ranging process, the initial notification included in a first message, the first message indicating whether the mobile station should terminate sleep mode to receive downlink data, and wherein the base station provides the mobile station with subsequent notifications of periodic ranging times that occur during the sleep time interval, the subsequent notifications indicated in a second message, the second message transmitted to the mobile station as part of the ranging process such that the mobile station performs a plurality of ranging processes within the sleep time interval.
Abstract:
A method of providing security of a relay station is disclosed, by which the security can he provided for the relay station in a broadband wireless access system having the relay station. In a mobile communication system to relay a signal transfer between a base station and a mobile station, the present invention includes the steps of performing a relay station authentication from an authentication server using an authentication protocol, receiving a master key from the authentication server, deriving an authentication key from the received master key, deriving a message authentication code (MAC) key using the derived authentication key, and relaying a signal exchanged between the mobile station and the base station using the derived message authentication code key.
Abstract:
A method uses inter-base station control messages to provide neighbor base station information to mobile subscriber stations in a mobile communication system. The method includes obtaining, at a serving base station, physical channel information of neighbor base stations over a backbone network via, either directly or via a server; periodically transmitting the obtained physical channel information from the serving base station to a mobile subscriber station connected to the serving base station; and measuring, based on the updated physical channel information, signal quality of the at least one neighbor base station at the mobile subscriber station. Thus, the serving base station receives from the neighbor base stations the inter-base station control messages containing the neighbor base station information, updates the information, and provides the updated information to the corresponding mobile subscriber station(s), to be used for a specific purpose such as handover or network entry.
Abstract:
The present invention relates to allocating data regions in an orthogonal frequency division multiplexing access system. The present invention comprises receiving a message comprising information for locating a data region of a data map allocated to a mobile station identified in the message for transmitting and receiving information, and identifying the data region of the data map allocated to the identified mobile station by reading the received message, wherein the data region is identified independent of identifying data regions of another data map.
Abstract:
A method of checking status of a mobile station in sleep mode is provided. The method includes receiving a SLP-REQ message from the mobile station; transmitting a SLP-RSP message in response to the SLP-REQ message, the SLP-RSP message including a first periodic ranging time frame offset indicating when the mobile station transmits a ranging request message; receiving the ranging request message which the mobile station transmits during a time period indicated by the first periodic ranging frame offset; and transmitting a ranging response message in response to the ranging request message, the ranging response message including information required for performing a ranging process, wherein the ranging response message further includes a second periodic ranging time frame offset if the mobile station transmits the ranging request message additionally.
Abstract:
A method of providing security of a relay station is disclosed, by which the security can he provided for the relay station in a broadband wireless access system having the relay station. In a mobile communication system to relay a signal transfer between a base station and a mobile station, the present invention includes the steps of performing a relay station authentication from an authentication server using an authentication protocol, receiving a master key from the authentication server, deriving an authentication key from the received master key, deriving a message authentication code (MAC) key using the derived authentication key, and relaying a signal exchanged between the mobile station and the base station using the derived message authentication code key.
Abstract:
A method of providing neighbor base station information via a mobile subscriber station in a broadband wireless access system is disclosed. In providing neighbor base station information (S316) to a serving base station from a mobile subscriber station in a broadband wireless access system, the present invention includes the steps of performing a scanning and a synchronization (S312, S313) on a mobile base station based on information provided from the serving base station (S311) and transmitting the neighbor base station information acquired from the scanning and the synchronization to the serving base station (S316) regardless of a presence or non-presence of a request from the serving base station. Accordingly, the present invention can efficiently transmit the neighbor base station signal intensity and frame information acquired by the mobile subscriber station.
Abstract:
In a case where the serving base station sets Scan Duration of the MOB-SCN-RSP message to 0 to reject a scan request from the mobile subscriber station as seen from above, the following two problems occur. First, because the mobile subscriber station does not know the reason why the scan request is denied, it may request scanning of neighbor base stations again by sending a scan request message to the serving base station before performing periodic ranging. In this case, the serving base station must reject again the scan request from the mobile subscriber station through a scanning response message, and thus an unnecessary exchange of a MAC message, and thus an unnecessary exchange of station and the serving base station. Such an unnecessary MAC message exchange becomes one of the causes of the waste of wireless resources and deteriorates the MAC processing efficiency. Second, when the serving base station intends to reject the scan request from the mobile subscriber station or stops the scanning of the mobile subscriber station during an Interleaving Interval of periodic scanning, a conventional scanning response message MOB-SCN-RSP has an inefficiency that all message parameters of about 5 bytes, including Scan Duration, Start Frame, Interleaving Interval, Scan iteration, Report Mode, Scan Period, etc. should be set to 0. When the mobile subscriber station requests for a neighbor base station scanning, if a scan duration includes a time point for performing periodic ranging of the mobile subscriber station, it is possible to avoid a periodic ranging operation of a mobile subscriber station from being obstructed by a scanning operation by allowing the mobile subscriber station to request for scanning again through a scan request message after performing a periodic ranging or to perform scanning. Moreover, in a case where the serving base station denies a scan request from the mobile subscriber station, it is possible to reduce it is possible to reduce the size of a scan request message and saving wireless resources by using a flag or scan duration parameter set to 0 representing the approval or denial of scanning instead of setting all scan parameters of a scan request message to 0.