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Frame structure, frame processing method and equipment and system for multi-hop access network

A construction method and wireless access network technology, applied in the field of broadband wireless access networks, can solve the problems of complex handover operations, mutual interference, and need for resynchronization of subscriber stations, and achieve simplified handover operations, guaranteed synchronization, and reduced delay. Effect

Active Publication Date: 2007-10-31
ALCATEL LUCENT SHANGHAI BELL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Moreover, when a base station with a relay station is deployed adjacent to a common base station, this solution will bring additional frequency planning overhead, and at the same time, the subscriber station also requires complex handover operations when moving
This is because the joint frame may not be aligned with the common frame, causing mutual interference, and this scheme may also cause the user station to resynchronize when it crosses the zone

Method used

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  • Frame structure, frame processing method and equipment and system for multi-hop access network
  • Frame structure, frame processing method and equipment and system for multi-hop access network
  • Frame structure, frame processing method and equipment and system for multi-hop access network

Examples

Experimental program
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example 1

[0086] Example 1: A two-hop application system where the frequency of the base station and the relay station are the same, as shown in Figure 15.

[0087] The base station 1500 in FIG. 15 has four relay stations having the same frequency as it, denoted as 1501, 1502, 1503 and 1504 respectively. In addition, the system has a subscriber station 1505 that communicates directly with the base station and a subscriber station 1506 that communicates with the base station 1500 through a relay station 1502 .

[0088] For the application shown in FIG. 15 , the frame construction method according to the embodiment of the present invention is used to construct the frame used for communication between the base station, the relay station and the user station. For the convenience of description, the frame structure in FIG. 16 is used for description. The frame structure in FIG. 16 is the result obtained by using the frame construction method of the embodiment of the present invention in the ...

example 2

[0094] Example 2: A two-hop application system with different frequencies of the base station and the relay station, as shown in FIG. 17 .

[0095] Base station 1700 in FIG. 17 uses frequency f0 and has four relay stations with different frequencies, denoted as 1701, 1702, 1703 and 1704 respectively. The frequencies used by these four relay stations are f1, f2, f3 and f4 in sequence. In addition, the system has a subscriber station 1705 that communicates directly with the base station and a subscriber station 1706 that communicates with the base station 1700 through a relay station 1702 .

[0096] For the example shown in FIG. 17 , the frame construction method according to the embodiment of the present invention is used to construct the frame used for communication between the base station, the relay station and the user station. For the convenience of description, the frame structure in FIG. 18 is used for description. The frame structure in FIG. 18 is the result obtained by...

example 3

[0101] Example 3: A three-hop application system in which the frequency of the base station and the relay station are the same, as shown in FIG. 19 .

[0102] The base station 1900 in FIG. 19 has four two-hop relay stations with the same frequency, respectively denoted as 1901, 1902, 1903 and 1904, and each relay station has two next-hop relay stations. Among them, the two next-hop relay stations of relay station 1901 are respectively 1901-1 and 1901-2, the two next-hop relay stations of relay station 1902 are respectively 1902-1 and 1902-2, and the two next-hop relay stations of relay station 1903 are respectively are 1903-1 and 1903-2, and the two next-hop relay stations of relay station 1904 are 1904-1 and 1904-2 respectively. These next-hop relay stations constitute the eight three-hop relay stations of the system. In addition, the system has a subscriber station 1905 that communicates directly with the base station and a subscriber station 1906 that communicates with the...

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Abstract

The invention discloses a frame building method for multi-jumping switch network that includes following steps: determining the relay station and the user's station in the field of base station; setting the descending sub-frame; setting the ascending sub-frame; and building the completed frame according to the ascending sub-frame and the descending sub-frame, in the step of setting the descending sub-frame that includes the steps of setting the descending relay sub-frame of descending relay information; and in the step of setting the ascending sub-frame that includes the steps of setting the ascending relay sub-frame of ascending relay information. The invention also discloses the frame processing method and equipment to realize the method, base station, relay station and system. According to the invention, it can make sure the synchronization of all network, and reducing the switching operation. It can support the base station and the relay station with different frequency. Additionally, it reduces the delay of business transmission.

Description

technical field [0001] The present invention relates to a broadband wireless access network, in particular to a frame construction method and a processing method in a broadband wireless access network with a multi-hop relay station (RS), and a device, a base station, a relay station and a system for realizing the method. Background technique [0002] The Institute of Electrical and Electronics Engineers (IEEE) has proposed a series of standards for wireless access technology applications, such as IEEE 802.11 for wireless local area networks and IEEE 802.15 for short-range interconnection based on Bluetooth specifications. The IEEE 802.16 currently being studied is the standard for the air interface of the IEEE wireless metropolitan area network. As a core technology of broadband wireless access, it is attracting widespread attention. arouse the interest of the industry. [0003] Since IEEE 802.16j aims to introduce a relay station (RS) into the wireless access network on th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/26H04B7/14H04Q7/30H04B17/02H04B17/40H04W16/26H04W72/12H04W84/04H04W84/18
CPCH04W72/1263H04W84/047H04B7/2606H04W16/26H04W88/04H04B7/14H04W56/00
Inventor 冷晓冰张凯宾沈钢邹伟
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD
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