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Multi-mode UWB system communication resource dispatching method

A communication resource and system communication technology, applied in the field of multi-mode UWB system communication resource scheduling, can solve problems such as rising, achieve the effect of improving QoS performance and preventing the increase of job unfinished rate

Active Publication Date: 2007-10-24
LENOVO (BEIJING) CO LTD
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Problems solved by technology

[0023] As shown in Figure 4, when the above allocation method is also used in the macro scheduling of the CSM PNC, the job failure rate (JFR, Job Failure Rate) will increase significantly with the increase of the total number of data streams

Method used

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  • Multi-mode UWB system communication resource dispatching method
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  • Multi-mode UWB system communication resource dispatching method

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Embodiment Construction

[0034] The method for scheduling communication resources in a multi-mode UWB system according to the present invention will be specifically described below in conjunction with the structure in which three data streams coexist in FIG. 1 .

[0035] As mentioned above, Figure 1 shows a typical scenario when three data streams coexist. It can be seen that the devices M1, M2, M3 and M4 existing in the network are MBOA devices 20; devices D1, D2, D3 and D4 is the DS-UWB device 10 . In addition, it is assumed that both the MBOA device and the DS-UWB device adopt the 802.15.3 MAC layer protocol, so there are communication resources for the MBOA PNC 20P and the DS-UWB PNC 10P to carry out the internal flow of each MBOA device 20 and DS-UWB device 10 during the communication. Micro-scheduling to arrange time slot resources for each MBOA and DS-UWB internal stream. In addition, the MBOA device 20 and the DS-UWB device 10 can communicate through the CSM mode. The node CSM-PNC that perfo...

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Abstract

The disclosed communication resource scheduling method for multi-mode UWB system comprises: every UWB device reports required communication resource for data flow including UWB and CSM data to relative scheduler; the scheduler calculates required whole resource and the unmet factor relative to UWB data, as well as the CSM-required resource, and sends all results to the system resource scheduler; the latter calculates the requires resource and unmet factor for CSM data flow, allocates communication resource according to all results, and updates the relative unmet factor. This invention improves the QoS.

Description

technical field [0001] The present invention relates to a communication resource scheduling method, in particular to a multi-mode UWB system communication resource scheduling method. Background technique [0002] Ultra-wideband wireless technology (UWB) provides a high-speed short-range wireless connection, such as data streaming media transmission for audio and video. Currently, there are two major UWB standards in the industry, namely DS-UWB (Direct Sequence UWB) standard and MBOA-UWB (Multi-Bandwidth OFDM Alliance UWB) standard. Due to the huge differences in the physical and link layers between the two standards, direct communication between them is not possible. On the other hand, since they work in the same UWB frequency band (3.1GHz-10.6GHz), if they are not well controlled, the interference between the two systems will make it difficult for either party to work well. [0003] Therefore, it is important to design a solution so that they can coexist and interoperate ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/69H04W72/04H04W72/12
Inventor 郭子华王爽
Owner LENOVO (BEIJING) CO LTD
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