Abstract: A signal relay apparatus, method, application program, and computer readable medium adapted for wireless network are capable of saving power consumption due to failure of adjusting amplifying gain dynamically and solving the difficulty of demodulation since noise is also amplified during relay. For wireless access network, the present invention decreases the transmission power of mobile devices so that the battery of the mobile devices may keep working longer and the interference inside is reduced.

Abstract: A communication apparatus, a method, and a computer readable medium for adjusting the number of communication identifications (CID) are provided. The communication apparatus comprises a database, a quality of service (QoS) scheduler, and a CID adjustment engine. The database stores first service information and second service information which respectively comprise a corresponding CID. The QoS scheduler determines whether an operating load thereof reaches to a threshold value. If yes, the CID adjustment engine unifies the CIDs of the first service information and the second service information. The QoS scheduler schedules the first service information and the second service information in response to the unified CID.

Abstract: A wireless communication system, an apparatus, and a method for transmitting information to describe network topology of the wireless communication system in a mobile multi-hop relay standard are disclosed. The system can either be a two-hop relay station system or a multi-hop relay station system. The apparatus can use a CDMA ranging code set to transmit information and manage other apparatuses of the wireless communication system under a mobile multi-hop relay standard. The CDMA ranging code set comprises a mobile station (MS) code set and a relay station (RS) code set. The MS code set is used to transmit information from the MS to the base station (BS). Likewise, the RS code set is used to transmit information from the RS and the BS.

Abstract: A frame structure for an IEEE 802.16j standard, a wireless communication apparatus and a method for assigning the same in a wireless communication system are provided. The wireless communication system comprises a base station (BS), a mobile station (MS), and a relay station (RS). The frame structure comprises an MS sub-frame and an RS sub-frame. The MS sub-frame is used for transmitting data between the RS and the MS. The RS sub-frame is used for transmitting data between the RS and the BS.

Abstract: A wireless communication system, a method, and a tangible machine-readable medium thereof for transmitting data based on a frame structure of a multi-hop relay standard are provided. The wireless communication system comprises a base station (BS), a relay station (RS), and a mobile station (MS). The frame structure comprises a relay station map (RS-MAP) frame and an MS sub-frame. The RS-MAP frame describes the frame structure. The MS sub-frame is used for transmitting the first data between the BS and the MS and is used for transmitting a second data between the RS and the MS according to the content of the RS-MAP frame. A part of the second data is the same as the first data.

Abstract: A method for co-channel interference suppression in Orthogonal Frequency Division Multiplexing (OFDM) systems with multiple receiving antennas is provided, wherein the co-channel interference (CCI) in different directions is suppressed by the spatial technique provided by the antenna arrays, and the interference to a desired carrier caused by other sub-carriers is also taken into consideration, that is, the interference of other sub-carriers is cancelled by means of a multistage interference cancellation, thereby the performance for interference suppression is improved.

Abstract: A method for a wireless communication system and a system adapted for wireless communication are provided. The wireless communication system comprises a base station, a first terminal apparatus and a second terminal apparatus. The base station determines whether the first terminal apparatus and the second terminal apparatus conform to a condition. If yes, the base station transmits a datum to the first terminal apparatus, and requests the first terminal apparatus to transmit the datum to the second terminal apparatus.

Abstract: A method for efficient channel access by using partial error detection code is utilized in a centralized wireless communication system. The partial error detection code is derived from the error detection codes of the transport layer to act as the reference of the error detection of a protocol data unit. This method performs a data validation test in a data-link layer. If an error is found, the proceeding data transmission will be stopped immediately to avoid unnecessary waste of the bandwidth resource of a web channel.

Abstract: A wireless communication system, method for transmitting a frame, and computer program product thereof are provided. The system comprises a base station and a subscriber station. The frame comprises a MAP area and a user area. The MAP area comprises a broadcast test area. The method and the computer program product thereof operate: the base station initially transmitting a first burst in the user area by a first transmission module; determining whether the first burst that is transmitted by the first transmission module fits a special situation; and if yes, the base station transmitting test information in the broadcast test area by a second transmission module or asking the subscriber station to transmit data by a second transmission module.

Abstract: A method for direct link in wireless communication system is provided, which is applied in a base station with functions for broadcast and time division duplex (TDD), the method comprising the following steps: receiving connection request signalings including position information from a plurality of subscriber stations (SSs) with global positioning systems (GPSs); determining the SSs which can carry out the direct link, according to the connection request signalings; allocating time slots to each SS which can carry out direct link in the scheduling; calculating a relative distance between the two SSs according to the position information; determining an initial transmit power for the transmitting SS, and adjusting it many times; finally, adding the adjusted transmit power value and the time slot information allocated to the SSs in the scheduling into the broadcast message.

Abstract: Adaptive communication method and apparatus are provided for third generation mobile transmission system (UMTS). A third layer module is provided to dominate transmission resources. A second layer module is provided to perform quality control. A first layer module is provided to perform signal transmission and reception. It is detected whether the first layer module supports a high speed protocol. If the first layer module supports the high speed protocol, the high speed protocol is used for transmission. If the first layer module does not support the high speed protocol, a conventional protocol is used for the transmission.

Abstract: A method of generating key data for successful communications during a network link, which is applied in two information devices with wireless fidelity (WiFi) wireless modules. The two information devices use identical non-private key data (SSID and WEP private key) to achieve an initial connection, and exchange their own unique network card ID numbers. The first information device and the second information device both generate new key data by utilizing the first unique ID number and the second unique ID number to ensure security of the network link.