WO2008025282A1 - Station de base, station relais, système de communication à relais hertzien et procédé correspondant - Google Patents

Station de base, station relais, système de communication à relais hertzien et procédé correspondant Download PDF

Info

Publication number
WO2008025282A1
WO2008025282A1 PCT/CN2007/070483 CN2007070483W WO2008025282A1 WO 2008025282 A1 WO2008025282 A1 WO 2008025282A1 CN 2007070483 W CN2007070483 W CN 2007070483W WO 2008025282 A1 WO2008025282 A1 WO 2008025282A1
Authority
WO
WIPO (PCT)
Prior art keywords
base station
relay station
relay
terminal
station
Prior art date
Application number
PCT/CN2007/070483
Other languages
English (en)
Chinese (zh)
Inventor
Shulan Feng
Original Assignee
Huawei Technologies Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Publication of WO2008025282A1 publication Critical patent/WO2008025282A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/26—Cell enhancers or enhancement, e.g. for tunnels, building shadow

Definitions

  • Base station Base station, relay station, wireless relay communication system and method
  • the present invention relates to the field of wireless communications, and in particular, to a base station, a relay station, a wireless relay communication system, and a method.
  • the system consists of two parts: a base station and a terminal.
  • the terminal is responsible for initiating and generating a service request of the user, and receiving the service from the base station.
  • the base station receives the service request from the terminal, and the service request is sent to the backbone network, and the service from the backbone network is delivered to the terminal.
  • the base station manages and controls one or more terminals.
  • FIG. 2 A structure of a broadband wireless access system in which a relay station is set is shown in FIG. 2.
  • the design of the relay station is very critical.
  • a simple relay station is a repeater, and after receiving all the downlink signals of the base station, the relay station The downlink signal of the base station is forwarded to the terminal without any modification. After receiving all the uplink signals of the terminal, the peer sends the uplink signal to the base station without any modification. Therefore, the relay station only has a forwarding function.
  • Another relay station in the prior art adds some simple and necessary measurement functions based on the forwarding function, and can further add certain scheduling functions. This type of relay will perform some scheduling based on the base station and its own link status.
  • An object of the present invention is to provide a base station, a relay station, a wireless relay communication system, and a method, thereby implementing In the wireless system, a simple design of a relay station is used to expand the coverage of the base station and improve the capacity of the base station.
  • a base station of a wireless communication system comprising:
  • a resource allocation module configured to allocate uplink physical resources and downlink physical resources to each relay station and a terminal controlled by each relay station, and send the allocated physical resource information
  • a link establishment module configured to establish a wireless link between the base station and each relay station
  • a communication module configured to communicate with each of the relay stations by using a physical link established by the link establishment module and a physical link allocated by the resource allocation module.
  • a relay station of a wireless communication system comprising:
  • the synchronization adjustment signaling receiving module is configured to receive, by using a radio link with the base station, the inter-turn difference between the receiving and receiving downlink services and the downlink service sent by the base station, receiving the uplink service, and transmitting the uplink service.
  • the signaling of the difference information acquires and stores the inter-turn difference between the received downlink service and the transmitted downlink service, and the inter-turn difference information of the received uplink service and the transmitted uplink service in the signaling;
  • the physical resource location signaling receiving module is configured to receive, by using a radio link with the base station, signaling that carries the location information of the downlink physical resource and the uplink physical resource that is sent by the base station, and obtains and saves the signaling in the signaling. Location information of downlink physical resources and uplink physical resources;
  • the forwarding service signaling receiving module is configured to receive, by using a radio link with the base station, signaling that is carried by the base station and carries the service information that needs to be forwarded by the relay station, and acquires and saves the relay in the signaling that needs to be forwarded by the relay station. Business information.
  • a wireless relay communication system including a base station and a relay station,
  • the base station is configured to allocate physical resources to terminals controlled by each relay station and each relay station, establish a wireless link with each relay station, and communicate between the wireless link and each relay station.
  • the relay station is configured to forward the downlink service sent by the base station to the terminal, and forward the uplink service sent by the terminal to the base station by using the radio link and the base station to perform communication.
  • a wireless relay communication method comprising the steps of:
  • the relay station transmits the terminal through the wireless link between the base station and the base station by using the physical resources allocated by the base station.
  • the message is forwarded to the base station;
  • the base station generates the corresponding response information after receiving the message, and sends the response information to the relay station by using the wireless link between the relay station and the relay station;
  • the relay station forwards the response information to the terminal by using physical resources allocated by the base station.
  • the present invention provides a complete wireless relay communication system by detailed design of the main functions of the base station, the relay station, and the synchronization process between the base station and the relay station. .
  • the invention only adds limited functions to the base station, expands the coverage of the base station, and improves the capacity of the base station.
  • the relay station has the characteristics of simple design and low price, and has no change to the function of the terminal.
  • the terminal can be fully compatible with the existing non-relay system.
  • FIG. 1 is a schematic diagram of a network topology structure of a broadband wireless access system in the prior art
  • FIG. 2 is a schematic structural diagram of a broadband wireless access system in which a relay station is set in the prior art
  • FIG. 3 is a schematic structural diagram of an embodiment of a wireless relay communication system according to the present invention.
  • FIG. 4 is a schematic diagram of a synchronization process between a relay station and a base station in the embodiment of the present invention.
  • the present invention provides a base station, a relay station, a wireless relay communication system and a method.
  • the present invention provides detailed design of a base station, a main function of a relay station, and a synchronization process between a base station and a relay station. Adding limited functions to the base station, the relay station has the characteristics of simple design and low price. The function of the terminal is unchanged, and it can be fully compatible with the existing non-relay system.
  • the structure of the embodiment of the wireless relay communication system of the present method is as shown in FIG. 3, and includes a base station, a relay station, and a terminal.
  • a base station, a relay station, and a terminal are referred to as nodes of a relay forwarding network.
  • a base station supporting relay forwarding may be referred to as a relay base station.
  • the base station is defined as a node with a hop count of 0, and the hop count of the link is increased by one hop for each node added according to the direction from the base station node to the terminal.
  • the node at the Nth hop position is the Nth hop node.
  • the base station is a parent node of a node that is directly connected to the base station and has a hop count of 1, that is, a node directly connected to the base station and having a hop count of 1 is a child node of the base station.
  • the node that is connected to the node n and whose hop count is smaller than the hop count of the node n is the parent node of the node n, and is directly connected to the node n and the hop count is greater than
  • the node of the hop count of the node n is a child node of the node n.
  • the base station in the wireless relay communication system of the present invention includes the following modules:
  • the resource allocation module 01 is configured to allocate physical resources for each relay station and terminals controlled by each relay station, and send the allocated physical resource information to the relay station and the terminal.
  • a physical resource assigned to a relay station can be one or more resource regions.
  • the physical resources allocated to the relay station may also overlap, that is, one resource area may also be shared by multiple relay stations.
  • the foregoing physical resources include uplink physical resources and downlink physical resources.
  • the service sending and receiving module 02 is configured to generate a downlink service from the base station to the relay station and the base station to the terminal, and receive the physical resource transmitted by the resource allocation module 01, and send the downlink to the relay station and the terminal according to the physical resource.
  • the service receives the uplink service of the terminal or the relay station in the physical resource transmitted by the resource allocation module 01.
  • the link establishment module 03 is configured to establish a wireless link with each relay station, and the base station communicates with each relay station through the wireless link.
  • the communication module 04 is used for communication between the wireless link established by the link establishment module 03 and each relay station.
  • the communication process includes: the base station sends signaling to the relay station to adjust the relay station synchronization, notify the physical resource location of the relay station, notify the relay station of the service to be forwarded, adjust the transmission power of the relay station, etc.; receive and process the relay station to report the measurement result to the base station, receive and process The relay station reports the access request and the ranging request of the terminal it controls to the base station.
  • the base station may further include an identity assignment module 09 for assigning each relay station an identification identifier or a special link identifier.
  • the identification identifier or the link identifier needs to be carried in a signaling or message sent by the relay station to the base station or the terminal to distinguish each relay station.
  • the foregoing communication module 04 specifically includes: a synchronization adjustment signaling delivery module 05, a physical resource location signaling delivery module 06 , a forwarding service signaling delivery module 07, and a reporting processing module 08.
  • the synchronization adjustment signaling issuance module 05 is configured to send the DL_Rel a y_Del a y of each relay station by using the wireless link established by the link establishment module 03 (receive between the downlink service and the downlink service)
  • the inter-frame difference), UL_Rel a y_Del a y (receiving the inter-turn difference between the uplink service and the uplink service) is signaled to each relay station.
  • the base station adjusts the forwarding entanglement of each relay station by using the DL_Relay_Delay and the UL_Relay_Delay described above, so that each relay station and the base station are synchronized.
  • the concept of synchronization between each relay station and the base station means: the deviation between the relay stations with the same hop count and the moment when the physical resource starts to be engraved and receives the physical resource from the base station is fixed, that is, the hops are the same.
  • the DL_Relay_Delay of the relay station is the same as the UL_Relay_Delay.
  • the frequency at which the relay stations with the same number of hops forward a certain physical resource is the same as the frequency at which the base station receives the physical resource.
  • the present invention provides an embodiment of the synchronization process between the relay station and the base station.
  • the synchronization process between the relay station and the base station in this embodiment is as shown in FIG.
  • the relay station 1, the relay station 2, and the relay station 3 are relay stations having the same hop count, the relay station 1 or the relay station 3 forwards downlink pilot signals and signaling, and the relay station 2 does not transmit downlink pilot signals and signaling.
  • the relay station 1 or the relay station 2 or the relay station 3 receives the same difference between the downlink service and the downlink service, and the relay station 1 or
  • the relay station 2 or the relay station 3 receives the same difference between the uplink service and the uplink service.
  • the relay station 1 and the relay station 3 start transmitting the daytime synchronization of the downlink pilots.
  • the base station can broadcast the above DL_Relay_Delay and UL_Relay_Delay
  • the physical resource location signaling sending module 06 is configured to send, by using the wireless link established by the link establishing module 03, signaling for carrying the location information of the downlink and uplink physical resources of each relay station to each relay station.
  • the location information of the downlink physical resource delivered by the base station is the actual location of the downlink service transmitted by the base station, but the location information of the uplink physical resource sent by the base station is the location where the relay station receives the uplink service, instead of the base station receiving the uplink service. position.
  • the start time of the uplink service received by the base station is Allocation_Start_Time_BS
  • the start time of the uplink service received by the relay station is Allocation_Sta rt_Time_RS
  • the forwarding service signaling sending module 07 is configured to send the signaling of the service information that needs to be forwarded by each relay station to each relay station by using the wireless link established by the link establishing module 03.
  • the services that the relay station needs to forward include broadcast messages, multicast and broadcast services, relays controlled by the relay station, or all services of the terminal.
  • the report processing module 08 is configured to receive and process the measurement result reported by the relay station to the base station.
  • the relay station in the wireless relay communication system of the present invention passes the wireless link and base between the base station and the base station The communication between the stations forwards the downlink service delivered by the base station and the uplink service sent by the terminal.
  • the relay station includes the following modules: a signaling receiving module 10, a downlink forwarding module 14, an uplink forwarding module 15, a downlink pilot or signaling module 16 and a measurement reporting module 17.
  • the signaling receiving module 10 is configured to receive various signalings sent by the base station by using the wireless link established between the base station and the base station.
  • the method includes: a synchronization adjustment signaling receiving module 12, a physical resource location signaling receiving module 11 and a forwarding service signaling receiving module 13.
  • the synchronization adjustment signaling receiving module 12 is configured to receive signaling of carrying DL_Relay_Delay and UL_Relay_Delay information sent by the base station, and obtain and save the DL_Relay_Delay and UL_Relay_Delay among the established radio link between the base station and the base station. information.
  • the physical resource location signaling receiving module 11 is configured to receive, by using the foregoing established wireless link with the base station, signaling that carries the downlink and uplink physical resource location information sent by the base station, and obtains and saves the Downstream and uplink physical resource location information.
  • the forwarding service signaling receiving module 13 is configured to receive, by using the foregoing established wireless link with the base station, signaling that carries the service information that needs to be forwarded by the base station, and acquires and stores the required information. Business information forwarded by itself.
  • the downlink forwarding module 14 receives the downlink physical resource location information saved by the physical resource location signaling receiving module 11 and receives the downlink service delivered by the base station at the corresponding location, and after receiving the synchronization, adjusts the signaling receiving module 12 according to the synchronization.
  • the saved DL_Rel a y_Del a y information is forwarded to the downlink service.
  • the modulation and coding mode used by the relay station to forward the downlink service is the same as the downlink signal modulation and coding mode of the base station.
  • the uplink forwarding module 15 receives the uplink physical resource location information saved by the physical resource location signaling receiving module 11, and receives the uplink service of the terminal at the corresponding location, and after the receiving is completed, according to the synchronization adjustment signaling receiving module 12
  • the UL_Rel a y_Del a y message is used to forward the uplink service.
  • the modulation and coding mode used by the relay station to forward the uplink service is the same as the uplink signal modulation and coding mode of the terminal.
  • the downlink pilot or signaling sending module 16 is configured to send downlink pilot or signaling sent by the base station. And the downlink pilots or signaling sent by the same relay station of all the parent nodes are the same. This module is an optional module. Whether the relay station transmits downlink pilot or signaling and which pilot is used can be controlled by the base station. When the system of the present invention is applied in an existing non-relay system, after receiving the signaling of the base station, the relay station needs to use Ranging or BW therein. The symbol offset in the request is reduced by UL_Relay_Delay before being forwarded.
  • Measurement reporting module 17 Used to measure the received signal quality of the terminal and the fixed offset of the terminal to the relay station.
  • the wireless relay communication system of the present invention does not change the function of the terminal, and the function of the terminal is completely compatible with the existing non-relay system.
  • An embodiment of a wireless relay communication method provided by the present invention includes the following steps:
  • the relay station receives an initial access request message of the terminal in a customized access area, and forwards the initial access request message to the base station by using a radio link between the relay station and the base station.
  • a radio link between the relay station and the base station.
  • the terminal initial access request message transmitted between the relay station and the base station includes: the power of the terminal obtained by the relay station measurement, and the fixed offset of the terminal relative to the relay station And the frame number and the initial access gap of the terminal initial access signal received by the relay station, the access status of the terminal, and other access status are successfully included in the ranging request by the terminal.
  • the physical layer, the terminal initial access request message transmitted between the relay station and the base station includes: the power of the terminal obtained by the relay station measurement, and the fixed offset of the terminal relative to the relay station
  • the initial access code used by the terminal the initial access gap used by the terminal, and the access state of the terminal.
  • the relay station receives a periodic adjustment request message of the terminal, and forwards the periodic adjustment request message to the base station by using a radio link between the relay station and the base station.
  • the terminal periodic adjustment request message transmitted between the relay station and the base station includes: the power of the terminal obtained by the relay station measurement, the fixed offset of the terminal relative to the relay station, The adjustment status of the terminal and the messages included in the periodic adjustment request by other terminals.
  • the terminal periodic access request message transmitted between the relay station and the base station includes: the power of the terminal obtained by the relay station measurement, the fixed offset of the terminal relative to the relay station, and the terminal usage
  • the periodic access code, the periodic access gap used by the terminal, and the periodic adjustment of the terminal are too.
  • the base station After receiving the periodic adjustment request message, the base station generates corresponding response information, by using the sum The wireless link between the relay stations delivers the response information to the relay station.
  • the relay station forwards the response information to the terminal.
  • the method may further comprise the steps of:
  • the relay station After receiving the adjustment or bandwidth request signaling sent by the base station, the relay station reduces the symbol offset in the signaling and subtracts the inter-turn difference between the downlink service and the downlink service, and then forwards the signal to the terminal.
  • the location of the bandwidth request signaling allocated by the base station to the terminal is the location where the base station actually receives the terminal signal and then subtracts the inter-turn difference between the received downlink service and the transmitted downlink service.
  • the method may further comprise the steps of:
  • the initial ranging process of the relay station includes the following steps:
  • the relay station first establishes downlink synchronization with the base station, and obtains downlink and uplink transmission parameters.
  • the relay station randomly selects a slotted ranging access slot to send a ranging request message from the initial ranging interval sent by the base station, and the ranging request message includes a MAC address of the relay station, a quality requirement of the downlink signal to be transmitted, and a relay station. Logo, etc.
  • the relay station also adds a signaling to the above ranging request message to indicate that the relay station is accessing, not the normal terminal access, and the signaling is:
  • Type of Access Station 0: Relay Station
  • the base station If the base station receives the initial ranging request message of the relay station but cannot decode, the base station sends a ranging response to the relay station by using a broadcast message, where the message includes the required relay station's fixed frequency, frequency and power adjustment amount, and ranging status, And the frame number and the crevice number of the relay station sending the access request.
  • the relay station After receiving the broadcast message, the relay station determines the response message sent to itself by determining the access request frame number and the crevice number in the response message. Then, according to the adjustment amount determined by the base station, the next ranging request message is resent.
  • the base station If the base station successfully receives the initial ranging request message of the relay station, the base station allocates a link identifier to the relay station, and sends a ranging request response message to the relay station, where the ranging response message includes the required adjustment amount and power of the relay station. Correction amount, frequency adjustment amount, MAC address of the relay station, link identifier assigned to the relay station, ranging status, and the like. After receiving the response message, the relay station determines that the message belongs to itself through the MAC address therein. If the ranging status is successful, the ranging request process is ended.
  • the relay station releases the current channel after receiving the ranging response message, and transfers to the next physical channel to restart the initial ranging process.
  • the relay station waits for a certain time after transmitting the ranging and does not receive the above ranging response message, the relay station transmits a re-randomly selected one of the ranging codes in the next suitable initial ranging slot, and transmits the power. Raise until the transmit power reaches a maximum and then return to the minimum transmit power. If the relay station does not wait for the ranging response after retransmitting a certain number of initial ranging requests, the relay station considers that the downlink channel is unavailable and starts scanning for the new downlink channel.
  • the initial ranging process of the relay station includes the following steps:
  • the relay station first establishes downlink synchronization with the base station, and obtains downlink and uplink transmission parameters.
  • the relay station randomly selects a ranging code from the initial ranging code domain, randomly selects an initial ranging gap from the initial ranging gap sent by the base station, and transmits the selected ranging code in the selected ranging slot. .
  • the relay station also adds a signaling to the above ranging code to indicate that the relay station is accessing, not the ordinary terminal access, and the signaling is:
  • Type of Access Station 0: Relay Station
  • the base station After successfully receiving the ranging code of the relay station, if the base station determines that the status is successful, the base station sends a ranging response message to the relay station, and the ranging code and the ranging access gap in the ranging response message are set as the initial initial transmission of the relay station.
  • the ranging code and the ranging gap of the ranging, and the required relay station frequency, frequency and power correction amount, and the base station allocates bandwidth for the relay station so that the relay station transmits the ranging request.
  • the base station After the base station successfully receives the ranging code of the relay station, if the status is determined to continue, the base station sends a ranging signal.
  • the message should be sent to the terminal, and the ranging code and the ranging access gap in the ranging response message are set as the ranging code and the ranging gap of the initial transmission of the initial station by the relay station, and include the required relay station frequency, frequency and power. Correction
  • the relay station After receiving the ranging response message with the status of continuing, the relay station performs correction according to the requirement of the ranging response message, and randomly selects the ranging gap transmission from the available initial ranging area from the periodic ranging code field. A randomly selected ranging code.
  • the relay station waits for a certain time after transmitting the ranging code and does not receive the ranging response, transmits a re-randomly selected one of the ranging codes in the next suitable initial ranging slot, and increases the transmission power until the transmission The power reaches a maximum and then returns to the minimum transmit power. If the relay station does not wait for the ranging response after retransmitting a certain number of initial ranging requests, the relay station considers that the downlink channel is unavailable and starts scanning for a new downlink channel.
  • the relay station and the base station use the ranging request and the ranging response message for periodic ranging to maintain the link quality between the relay station and the base station.
  • the ranging may be triggered by the base station, that is, the base station actively sends a ranging response to the relay station or the base station actively allocates bandwidth to the relay station.
  • the periodic ranging process of the relay station includes the following steps:
  • the base station For each relay station, the base station maintains a fixed buffer. When the fixed buffer overflows, the base station allocates bandwidth to the relay station and resets the fixed buffer. Each time the base station allocates bandwidth to the relay station, the timer is reset.
  • the relay station If the relay station does not receive the bandwidth allocation of the base station within the specific inter-turn interval, the relay station considers that the uplink is not available and will reselect the new downlink channel and re-access.
  • the base station determines whether the uplink signal of the relay station is received. If the uplink signal is not received multiple times, the base station considers that the relay station is unavailable, and terminates the management of the relay station link. If the uplink signal of the relay station is received, the base station determines the signal quality. If the signal quality can be received and the ranging data includes the ranging request message, the base station sends the test to the status of 'success'. From the response message. If the signal quality is unacceptable, the base station sends a ranging response message with a status of 'continue' to the relay station, and the necessary correction information is included in the ranging response message and sent to the relay station. If the base station transmits the correction message many times and the signal quality of the SS is still unacceptable, the base station transmits a ranging response message with a status of 'abandon' to the relay station, and terminates the management of the relay station.
  • the relay station shall respond to each upstream bandwidth assignment assigned to him. If the status of the recently received ranging response message is 'continue', the uplink data is sent to the relay station according to the correction request given by the ranging response message, and the transmitted data includes a ranging request message. If the recently received ranging response message status is 'success', the relay station will transmit its own data for the permanently allocated upstream bandwidth. If there is no data to transmit, the relay station uses padding data transmission. If the status of the recently received ranging response message is 'discarded', the relay station terminates the reception of the base station and re-enters the new channel.
  • the periodic ranging process of the relay station is similar to the initial ranging process, except that the relay station needs to randomly select the ranging code from the periodic ranging code domain and transmit it in the periodic ranging gap.
  • the initial access procedure forwarded by the terminal through the relay station within the control range of the relay station includes the following steps:
  • the relay station After receiving the signaling of the base station, the relay station reduces the symbol offset in the ranging or bandwidth request Ranging or BW request in the signaling by UL_Rel a y_Del a y and forwards it to the terminal.
  • the relay station receives the initial access request message of the terminal in the customized access area. Its function is equivalent to the processing in the same situation as the base station set in the existing non-relay system.
  • the relay station sends a corresponding initial access request message of the received terminal to the base station by using a link between the established relay station and the base station.
  • this message includes the power of the terminal measured by the relay station, the fixed offset result of the terminal relative to the relay station, the frame number, the initial access gap, the access status (continuation or success), and other terminals.
  • Message in RNG-REQ if the access status is successful.
  • OFDMA Orthogonal Frequency Division Multiple Access
  • the base station After receiving the corresponding initial access request message sent by the relay station and receiving the corresponding initial access request message, the base station generates corresponding response information. If the uplink bandwidth needs to be allocated to the terminal, the base station needs to send the corresponding synchronization adjustment signaling and resource physical location signaling to the relay station, and the relay station forwards the received signaling to the terminal.
  • the periodic adjustment process of the terminal forwarding through the relay station within the control range of the relay station is as follows:
  • the relay station receives a periodic adjustment request message of the terminal, and forwards the periodic adjustment request message to the base station by using a radio link between the relay station and the base station; the base station receives the periodicity After the request message is adjusted, corresponding response information is generated, and the response information is sent to the relay station by using a wireless link between the relay station and the base station, and the relay station forwards the response information to the terminal;
  • the periodic adjustment process of the terminal ends.
  • the base station allocates bandwidth to the terminal for periodic adjustment.
  • the adjustment process is fully compatible with the non-relay system in the prior art. If the uplink bandwidth needs to be allocated to the terminal, the base station needs to send the corresponding The synchronization adjustment signaling and the resource physical location signaling are sent to the relay station, and the relay station forwards the received signaling to the terminal.
  • the periodic adjustment process of the terminal is similar to the initial access procedure forwarded by the terminal through the relay station, except that the access gap used by the terminal is a periodic access gap.
  • the access code used is the code in the periodic access code domain.

Abstract

La présente invention concerne une station de base, une station relais, un système de communication à relais hertzien et un procédé correspondant, le système de communication à relais hertzien comprenant une station de base et une station relais. La station de base est utilisée pour attribuer la ressource physique à chaque station relais et aux terminaux commandés par chaque station relais; établir les liaisons hertziennes entre la station de base et chaque station relais; puis communiquer avec chaque station relais par les liaisons hertziennes. La station relais est utilisée pour communiquer avec la station de base par les liaisons hertziennes, et transmettre la transaction de liaison descendante envoyée par la station de base et la transaction de liaison ascendante envoyée par les terminaux.
PCT/CN2007/070483 2006-08-25 2007-08-15 Station de base, station relais, système de communication à relais hertzien et procédé correspondant WO2008025282A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200610109985.7 2006-08-25
CN2006101099857A CN101132564B (zh) 2006-08-25 2006-08-25 基站、中继站、无线中继通信系统和方法

Publications (1)

Publication Number Publication Date
WO2008025282A1 true WO2008025282A1 (fr) 2008-03-06

Family

ID=39129654

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2007/070483 WO2008025282A1 (fr) 2006-08-25 2007-08-15 Station de base, station relais, système de communication à relais hertzien et procédé correspondant

Country Status (2)

Country Link
CN (1) CN101132564B (fr)
WO (1) WO2008025282A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8295222B2 (en) 2010-04-21 2012-10-23 Huawei Device Co., Ltd. Wireless connection method and device
US10805874B1 (en) 2019-02-25 2020-10-13 Sprint Communications Company L.P. Frequency channel lock in wireless data relays

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8902805B2 (en) * 2008-10-24 2014-12-02 Qualcomm Incorporated Cell relay packet routing
JP5131155B2 (ja) * 2008-10-28 2013-01-30 アイコム株式会社 無線通信システム、無線通信方法、中継装置及び無線端末装置
CN101790245B (zh) * 2009-01-22 2015-05-13 中兴通讯股份有限公司 分布式中继站控制信息发送、接收方法及收发系统
CN101790241B (zh) * 2009-01-22 2015-05-13 中兴通讯股份有限公司 分布式中继站控制信息发送、接收方法及收发系统
CN101867872B (zh) * 2009-04-20 2012-12-12 电信科学技术研究院 一种通过基站向中继节点转发数据的方法和系统
CN101895987B (zh) * 2009-05-22 2013-05-08 中兴通讯股份有限公司 回程链路上行资源配置指示及数据传输的方法及系统
CN101932102B (zh) * 2009-06-19 2013-01-23 华为技术有限公司 业务承载映射方法及通信设备
CN101931961A (zh) 2009-06-23 2010-12-29 华为技术有限公司 实现中继系统回程链路控制信道传输的方法、系统和设备
US20100329188A1 (en) * 2009-06-29 2010-12-30 Yu-Chih Jen Method for Handling Transmission Status and Related Communication Device
CN102036386B (zh) * 2009-09-29 2014-12-10 中兴通讯股份有限公司 Lte-a系统及其中继链路的物理下行控制信道的资源分配方法
CN102111214A (zh) * 2009-12-28 2011-06-29 中兴通讯股份有限公司 基站、中继节点、中继子帧配置信息的通知方法及系统
CN102143576B (zh) * 2010-01-29 2014-12-10 中兴通讯股份有限公司 终端定位系统和终端定位方法
CN102149196B (zh) * 2010-02-09 2014-11-05 北京邮电大学 带宽分配方法、基站和中继装置
JPWO2011099508A1 (ja) * 2010-02-12 2013-06-13 三菱電機株式会社 移動体通信システム
JP5581975B2 (ja) * 2010-07-07 2014-09-03 ソニー株式会社 通信制御装置、通信制御方法、通信システム及び通信装置
CN103249155B (zh) * 2013-04-22 2016-01-06 东南大学 一种ofdm无线中继网络系统的资源分配方法
CN103491634B (zh) * 2013-09-13 2016-06-22 宁波大学 多用户协作中继系统中基于功率最小化的资源分配方法
CN105451271B (zh) * 2014-09-05 2019-07-02 中兴通讯股份有限公司 一种资源管理方法及装置
CN104702350B (zh) * 2015-03-31 2017-03-08 中国航空无线电电子研究所 一种航空无线通信系统中的无线电测距系统
US10687309B2 (en) * 2015-05-08 2020-06-16 Texas Instruments Incorporated Enhanced broadcast transmission in unslotted channel hopping medium access control
US10567069B2 (en) * 2016-04-28 2020-02-18 Netgear, Inc. Repeater bandwidth, radio configuration, and ADC clock speed adjustment
WO2017221874A1 (fr) * 2016-06-20 2017-12-28 日本電信電話株式会社 Dispositif de transmission optique, et procédé d'attribution de largeur de bande
CN108235404B (zh) * 2016-12-22 2020-12-25 上海未来宽带技术股份有限公司 一种无线网络中继的实现方法及系统
CN108924962B (zh) * 2017-03-24 2021-05-04 华为技术有限公司 信息指示的方法和装置
CN110798262B (zh) * 2019-10-23 2023-02-24 中国海洋大学 一种水下无线光通信网络

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1203007A (zh) * 1995-12-22 1998-12-23 英国电讯公司 移动无线电系统
FR2784257A1 (fr) * 1998-10-02 2000-04-07 Thomson Csf Procede de transmission de donnees entre un serveur et des mobiles au sein d'un systeme de transmission de donnees
CN1283053A (zh) * 1999-08-02 2001-02-07 阿尔卡塔尔公司 具有被链接的基站控制器的移动远程通信网络
WO2005067173A1 (fr) * 2003-12-30 2005-07-21 Nokia Corporation Systeme de communication reposant sur l'utilisation de stations de base relais a liaisons de donnees asymetriques
KR20060057471A (ko) * 2004-11-23 2006-05-26 삼성전자주식회사 릴레이 방식을 사용하는 셀룰라 통신 시스템에서 스케쥴링장치 및 방법

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006074621A (ja) * 2004-09-03 2006-03-16 Oki Electric Ind Co Ltd 通信システム、中継用通信端末、通信方法および通信プログラム

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1203007A (zh) * 1995-12-22 1998-12-23 英国电讯公司 移动无线电系统
FR2784257A1 (fr) * 1998-10-02 2000-04-07 Thomson Csf Procede de transmission de donnees entre un serveur et des mobiles au sein d'un systeme de transmission de donnees
CN1283053A (zh) * 1999-08-02 2001-02-07 阿尔卡塔尔公司 具有被链接的基站控制器的移动远程通信网络
WO2005067173A1 (fr) * 2003-12-30 2005-07-21 Nokia Corporation Systeme de communication reposant sur l'utilisation de stations de base relais a liaisons de donnees asymetriques
KR20060057471A (ko) * 2004-11-23 2006-05-26 삼성전자주식회사 릴레이 방식을 사용하는 셀룰라 통신 시스템에서 스케쥴링장치 및 방법

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8295222B2 (en) 2010-04-21 2012-10-23 Huawei Device Co., Ltd. Wireless connection method and device
US8295223B2 (en) 2010-04-21 2012-10-23 Huawei Device Co., Ltd. Wireless connection method and device
US10805874B1 (en) 2019-02-25 2020-10-13 Sprint Communications Company L.P. Frequency channel lock in wireless data relays

Also Published As

Publication number Publication date
CN101132564A (zh) 2008-02-27
CN101132564B (zh) 2011-09-14

Similar Documents

Publication Publication Date Title
WO2008025282A1 (fr) Station de base, station relais, système de communication à relais hertzien et procédé correspondant
JP5098555B2 (ja) 無線通信システム
US8243662B2 (en) Method, system and apparatus for implementing bandwidth allocation based on a relay station
FI113223B (fi) Menetelmä, laite ja televerkko törmäysten välttämiseksi radioliikenteessä
US8514822B2 (en) Efficient acknowledgement messaging in wireless communications
JP4615566B2 (ja) 透過リレー方法および装置
CN101317347B (zh) 在移动通信系统中启动共用信道上的通信的方法和设备
US9320060B2 (en) Method, devices and system for local collision avoidance for random access in relay networks
KR101078673B1 (ko) 중계 시스템과 대역폭 할당 및 스케줄링 방법
US8515437B2 (en) Wireless resource allocation method, wireless mobile station and wireless base station in wireless communication system
JP2020529158A (ja) 搬送波を選択する方法及びこれをサポートする装置
US20090201874A1 (en) Radio base station, relay station , and band allocation method
WO2007053949A1 (fr) Systeme et procede pour fournir des communications dissymetriques sans fil au moyen de reseaux de relais
CN111264080A (zh) 在无线通信系统中触发发送载波选择的方法和设备
US20090245165A1 (en) Method and system for resource scheduling in wireless system
WO2009086744A1 (fr) Procédé de transmission de message de diffusion d'une station relais dans un réseau relais à sauts multiples
GB2346779A (en) Random access request over a common CDMA channel using a preamble with a selected signature
TW200826538A (en) Centralized-scheduler relay station for MMR-extended 802.16E system
CN101366203A (zh) 用于在多跳中继无线接入通信系统中管理连接标识符的方法和设备
CN101262696A (zh) 一种实现系统间通信的方法和系统以及终端设备
WO2008108591A2 (fr) Procédé de communication d'urgence dans un système de communication mobile et station mobile associée
TW200904043A (en) Apparatus and method for processing transmission information of broadcast message constituted by relay station (RS) in multihop relay broadband wireless access (BWA) communication system
KR101781193B1 (ko) 무선 망에서 노드들에게 시간 동기 전달을 지원하는 통신 방법
WO2009132477A1 (fr) Procédé de demande et d’allocation de bande passante dans un système de communication sans fil et appareil à cet effet
US20080043747A1 (en) Apparatus, method, system and software product for a scheduling synchronization mechanism in a multi-hop environment

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07800959

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

NENP Non-entry into the national phase

Ref country code: RU

122 Ep: pct application non-entry in european phase

Ref document number: 07800959

Country of ref document: EP

Kind code of ref document: A1