Abstract: A method, a wireless communication system, a tangible machine-readable medium, and a communication apparatus for transmitting downlink hybrid automatic repeat request (HARQ) packets based on a multi-hop relay standard are provided. The wireless communication system comprises a BS, an SS, and a plurality of RSs. The BS transmits a plurality of first downlink HARQ packets to the RSs. After receiving one of the first downlink HARQ packets, at least one of the RSs replies a first ACK to the BS and retrieves a second downlink HARQ packet in the first downlink HARQ packet. Then, the at least one of the RSs transmits the second downlink HARQ packet to the SS. And the second downlink HARQ packet is the same as a part of one of the first downlink HARQ packets.

Abstract: An apparatus, a transmission method, and a tangible machine-readable medium thereof for relaying a data signal in a multi-hop relay network are provided, wherein the multi-hop relay network comprising a plurality of relay stations. The apparatus comprises a storage module, a receiving module, and a transmission module. The storage module is configured to store a message of the multi-hop relay network, the message indicating a relation between the apparatus and the relay stations. The receiving module is configured to receive the data signal. The transmission module is configured to transmit the data signal and a first response signal according to the message in response to the data signal, wherein the first response signal relates to a correctness of the data signal.

Abstract: An apparatus, a transmission method, and a tangible machine-readable medium thereof for relaying a data signal in a multi-hop relay network are provided, wherein the multi-hop relay network comprising a plurality of relay stations. The apparatus comprises a storage module, a receiving module, and a transmission module. The storage module is configured to store a message of the multi-hop relay network, the message indicating a relation between the apparatus and the relation stations. The receiving module is configured to receive the data signal. The transmission module is configured to transmit the data signal and a first response signal according to the message in response to the data signal, wherein the first response signal relates to a correctness of the data signal.

Abstract: A method, a wireless communication system, a tangible machine-readable medium, and a communication apparatus for transmitting and relaying a channel descriptor based on a multi-hop relay standard are provided. The wireless communication system comprises a BS and at least one RS. The BS divides the channel descriptor into a common channel descriptor and at least one particular channel descriptor. Then the BS broadcasts/multicasts the common channel descriptor to the at least one RS and transmits the at least one particular channel descriptor to the same. The at least one RS combines the common channel descriptor and the at least one particular channel descriptor to generate the channel descriptor.

Abstract: A method, a wireless communication system, a tangible machine-readable medium, and a communication apparatus for transmitting a bandwidth (BW) allocation based on a multi-hop relay standard are provided. The wireless communication system comprises a BS and at least one RS. The BS transmits the at least one particular channel descriptor to the at least one RS. The least one RS transmits at least one Ack to the BS for replying the at least one particular channel descriptor. Finally, the BS transmits the at least one BW allocation to the at least one RS according to the at least one Ack in a predetermined interval.

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 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 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 wireless communication system using channel access based on a contention approach and method thereof is disclosed, which allocates plural sets of time slots in a predetermined contention interval, wherein each set of time slots further includes plural adjacent overlapped time slots. A channel requester transmits a contention message to a channel allocator at a time slot based on an interleaved method after the channel requester completes count down of a predetermined time, so that the positions of the headers of the contention messages in the adjacent time slots of each set of time slot are different. Thus, if the contention message transmitted by the channel requester collides with the contention message of the adjacent time slot, the channel allocator can parse the headers of the collided contention messages and respectively allocate plural special channel times for communicating with the channel requesters.