| Patent application number | Description | Published |
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| 20090088164 | HANDOVER CONTROL METHOD IN A WIRELESS ACCESS SYSTEM, RELAY STATION AND BASE STATION - The present invention provides a handover control method in a wireless access system, a relay station and a base station for performing handover control in a mobile multi-hop relay wireless access system such that the wireless access system is enabled to cover a wider area. To achieve the above object, the present invention provides a handover control method in a wireless access system, wherein the wireless access system comprises a mobile station and a base station, which receive and send message via a wireless channel, and further comprises a relay station for forwarding message from the mobile station and the base station under control of the base station, characterized in that the method comprising a relay station measure and arbitration step in which the relay station measures the message and arbitrates whether to relay the message, and a base station measure and handover step in which the base station measures the message and arbitrates whether to perform handover. | 04-02-2009 |
| 20090088165 | RELAY STATION, BASE STATION AND METHOD FOR EXTENDING A COVERAGE AREA OF A BASE STATION IN A RADIO NETWORK - A method for extending a coverage of a base station in a wireless communication network is disclosed, characterized in that a relay station transfers control information and communication related information between the base station and the mobile station according to an indication of the base station. | 04-02-2009 |
| 20090097433 | RELAY METHOD OF WIRELESS ACCESS SYSTEMS AND BASE STATION, RELAY DEVICE AND REPLAY SYSTEM THEREOF - The present invention is directed to provide a relay method in a wireless access system, including comprising the following steps: in downlink direction, receiving downlink data from a base station, wherein the downlink data include control information for relay operation; constructing downlink data to be retransmitted; retransmitting the constructed downlink data to wireless communication terminals according to a profile specified by the control information; and, in uplink direction, receiving uplink data from the wireless communication terminals according to a profile specified by the control information; recovering the uplink data of the wireless communication terminals; and retransmitting the uplink data to the base station according to the profile specified by the control information. The present invention further provides the corresponding base station device, relay device and wireless relay system. Through the present invention, the base station is able to perform centralized control of the entire mobile multi-hop relay system, which effectively reduces the complexity of the relay device and can realize a transparent transportation with respect to wireless communication terminals. | 04-16-2009 |
| 20090097434 | Frame Constructing and Frame Processing Methods, Device and System In Multi-Hop Access Network - The present invention discloses a frame constructing method for use in a multi-hop wireless access network, the method comprising the steps of: determining Relay Stations (RSs) and Mobile Stations (MSs); setting a DL sub-frame; setting an UL sub-frame; and constructing a completed frame based on the UL sub-frame and the DL sub-frame; wherein the step of setting the DL sub-frame comprises a step of setting a DL relay sub-frame field for DL relay information sent to the RS; and the step of setting the UL sub-frame comprises a step of setting an UL relay sub-frame field for UL relay information sent from the RS. The present invention further discloses a corresponding frame processing method and a device, base station, relay station and system for implementing the method. According to the present invention, the synchronization in the whole network system is ensured, and the handover operation when the MS moves is simplified. Moreover, the situation that the base station and the relay stations use different frequencies can be supported. Additionally, the delay of traffic transmission is decreased. | 04-16-2009 |
| 20090103472 | METHOD AND DEVICE FOR COOPERATIVE RELAY WITH MULTIPLE RELAY STATIONS IN WIRELESS TELECOMMUNICATION NETWORK - The invention provides a method and device for cooperative relay with multiple relay stations in the wireless telecommunication network. To be specific, according to the invention, in single-hop or multi-hop relay telecommunication link, the relay device and other relay devices within the same hop select space diversity or space multiplexing to carry out cooperative relay operation according to the processing indicating information from the base station, thus obtaining space diversity gain and space multiplexing gain. | 04-23-2009 |
| 20090116423 | METHOD AND DEVICE FOR COOPERATIVE RELAY IN WIRELESS COMMUNICATION NETWORK - The invention provides a method and device for cooperative relay with multiple relay stations in the wireless telecommunication network. The invention is proposed to improve the quality of relayed signals, reduce the resources needed for relaying and solve the problems when performing the switch between relay devices. The method and device according to the invention are characterized in that, the received signals are processed according to the indicating information from a BS, before sending them to the next level network nodes. Compared with the prior art, the present invention can achieve better spatial diversity gain or spatial multiplexing gain, even both of them. Further, the present invention does not require a high level synchronization. Therefore, the performance of the signals received can be considerably improved, the resources needed for relaying are also reduced. Further, the present invention is very practical. | 05-07-2009 |
| 20090310515 | METHOD AND DEVICE FOR SETTING UP CONNECTION BETWEEN MOBILE STATION AND BASE STATION IN MULTI-HOP RELAY NETWORK - The invention relates to methods and devices for setting up connection for wireless relay network, wherein, mobile station utilizes the primary transmission path from itself and relay stations in the initial ranging and network entry procedure to send a request signal to base station. After the base station receives the request signal, it allocates a transmission path for the mobile station, and sends the information to the relay station on the path along the primary transmission path, and sends a response message to the mobile station. When the mobile station and the related relay stations obtain the corresponding response message and transmission path information, the signal sent by the mobile station is sent to the base station via relay stations along the transmission path. | 12-17-2009 |
| 20090313518 | METHOD AND APPARATUS FOR HYBRID AUTOMATIC REPEAT REQUEST - The present invention provides two primary Hybrid Automatic Repeat reQuest (HARQ) mechanisms for a multi-hop network, i.e. an active Mobile Multi-hop Relaying (MMR) HARQ and a passive Mobile Multi-hop Relaying (MMR) HARQ. According to the solution of the present invention, there are provided a method and a device for HARQ retransmission in relay stations of a wireless communication network, wherein in HARQ retransmission, the HARQ procedure is implemented based on resource allocated by a base station; and a method and device for HARQ in a base station, characterized in that a HARQ procedure is implemented in-between one or more relay stations and a mobile station. With the methods of the present invention, the HARQ problems existing in a multi-hop network are overcome, the correction rate of data transmission is improved, while time delay for data transmission is reduced. | 12-17-2009 |
| 20100182946 | METHODS AND DEVICES FOR TRANSMITTING DATA IN THE RELAY STATION AND THE BASE STATION - A new data packet transmission solution is provided in the present invention. Firstly, a source network equipment sends a duplicate of a data packet to a sponsor relay station and other one or more assistant relay stations; then the one or more assistant relay stations transmit the duplicate of the data packet received to the sponsor relay station. After the sponsor relay station receives the duplicate directly transmitted by the source and a plurality of duplicates which are transmitted by one or more assistant relay stations, it applies a joint processing of several duplicates of the data packet, and then transmits the result of the joint processing to a corresponding network equipment. Preferably, after one or more assistant relay stations transmit the duplicates of the data packet to the sponsor relay station, the destination network equipment also receives one or more duplicates, and applies a joint processing of the one or more duplicates and a duplicate of the data packet which is received from the sponsor relay station. | 07-22-2010 |
| 20110007689 | SYSTEM FOR TRANSMITTING INTERACTING DATA BETWEEN NEIGHBORING BSS VIA MS AND METHOD THEREOF - The present invention provides a system for transmitting interacting data between neighboring BSs via a MS and a method thereof The system comprises a first BS which transmits the interacting data to the MS, and a MS which receives the interacting data from the first BS and transmits the received interacting data to a second BS that neighbors to the first BS. The invention also provides a communication system and a method thereof, wherein a MS communicates with a first BS using an established first communication channel, and the MS to communicates with the second BS using an established second communication channel. The system of the invention uses a MS within the overlapped coverage area of neighboring BSs to perform transmission of interacting data such as control information for coordination, so as to reduce latency required for interacting data transmission between neighboring BSs. Compared to legacy BS coordination via a backbone, the BS coordination via a MS of the invention is predictable and requires less latency. | 01-13-2011 |
| 20110038312 | METHOD FOR IDENTIFYING CONNECTION, MOBILE STATION AND BASE STATION - Disclosed are a method for identifying a connection, mobile station and base station. The method comprises the steps of: assigning a MS ID to the mobile station when the mobile station enters into the coverage area of the base station; and assigning a connection ID to a connection when the connection is established between the base station and the mobile station. With the proposed solution, the data overhead could be reduced due to short Connection ID instead of | 02-17-2011 |
| 20110110305 | METHOD AND APPARATUS FOR PROCESSING PROTOCOL DATA UNITS IN A WIRELESS NETWORK - A method and apparatus for processing protocol data units in network devices of wireless networks are provided. In this solution, data corresponding to different logical connections could be carried in the same protocol data unit. As a result, the overheads of processing information in a system that is irrelevant to data are reduced, especially the overheads for MAC Headers and Sub-headers. | 05-12-2011 |
