Method and device for settling device address collision in UWB system

A technology of device address and implementation method, which is applied in the direction of data exchange through path configuration, etc., can solve conflicting device conflicts, increase device energy consumption and other problems, and achieve the effect of saving energy consumption and reducing the probability of reoccurrence of conflicts

CN101345669AInactive Publication Date: 2009-01-14HUAWEI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2009-01-14
Estimated Expiration
Not applicable · inactive patent

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Abstract

An embodiment of the invention provides an implement method of solving device address conflict in a UWB system, particularly when the device address conflict happens, one of the device is selected to perform address redistribution, while the other device keeps available address unchangeable. According to the embodiment of the technical scheme in the invention, only one of the device is performed with address redistribution in the two devices with device address conflict, while the other device keeps the address unchangable, thereby reducing probability of the conflict device to select the same address to conflict; meanwhile, energy cost is saved since the other device has no address redistribution.
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Description

technical field

[0001] The invention relates to the technical field of wireless communication, in particular to a method and device for solving device address conflicts in a UWB system. Background technique

[0002] UWB (Ultra Wideband) is an ultra-wideband wireless communication technology. In a distributed UWB system, each device is independent and peer-to-peer. There is no central coordinator to coordinate the channel occupancy and communication synchronization of the system, but according to the definition The superframe concept and structure are used to uniformly allocate channel resources and perform communication synchronization.

[0003] A superframe is the basic time division for data exchange between devices, and the channel time is divided into a set of consecutive superframes. like figure 1 Shown is a schematic structural diagram of a superframe, in which the superframe consists of two parts: a beacon period and a data exchange period (other parts except the be...

Examples

Embodiment 1

[0051] Embodiment 1: Taking the communication operation of device A in the UWB system as an example, device A first receives a beacon frame within its beacon period, and then device A parses the received beacon frame to obtain the frame control information Frame Control, the destination address of the beacon frame DestAddr, and the address SrcAddr of the source device that sent the beacon frame; in addition, the beacon slot position information BeaconSlot Number A of device A in the beacon period can also be obtained; it can also be obtained from L1, The information of the information element BPOIE carried by the beacon frame is obtained in the L2, ..., LN field.

[0052] If there is an address DevAddr I in DevAddr N contained in the information element BPOIE that is the same as the address of device A, but in the beacon slot corresponding to DevAddr I, device A does not send a beacon or is in a dormant state, then It is determined that a device address conflict has occurred. ...

Embodiment 2

[0056] Embodiment 2: Still taking the scenario provided in Embodiment 1 as an example, when judging that a device address conflict has occurred, in addition to the judgment method of reassigning the address device described in Embodiment 1 above, a random selection method can also be used to One of the devices is selected for address reassignment. Here, the random selection strategy can be determined according to the usage of the device and the network occupancy.

[0057] If the device A receiving the beacon frame is randomly selected to reassign the address, the device B will not perform the address assignment operation, keep its existing address unchanged, and continue to perform various predetermined operations; if the device B is randomly selected to reassign If the address is reassigned, the device A receiving the beacon frame will keep the existing address unchanged, and continue to perform various predetermined operations.

[0058]In addition, if device A is selected fo...