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Method for distributing uplink resource

A resource and message technology, applied in the communication between multiple stations, radio/induction link selection arrangement, selection device and other directions, can solve the problem of poor transmission quality, the base station cannot correctly receive specific uplink messages, and the base station cannot detect and other issues to achieve the best performance

Inactive Publication Date: 2007-10-03
HUAWEI TECH CO LTD
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AI Technical Summary

Problems solved by technology

[0006] However, there are disadvantages in the base station's method of allocating fixed-width uplink time slots for these uplink messages: first, these specific uplink messages are based on contention, and there will be multiple user equipments in the allocated corresponding uplink time slots to send When the base station sends these specific uplink messages, conflicts are likely to occur, especially when there are many user equipments residing on a base station, which will make the base station unable to correctly receive the specific uplink messages sent by all user equipments; secondly, when these specific When the time slot occupied by the uplink message is affected by multipath and noise, the base station cannot detect when the transmission quality is relatively poor; thirdly, when the time slot occupied by these specific uplink messages is interfered by the LU, the transmission quality is poor, The base station cannot detect and cannot reallocate the corresponding time slot

Method used

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  • Method for distributing uplink resource
  • Method for distributing uplink resource

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Embodiment Construction

[0035] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail by giving specific embodiments and referring to the accompanying drawings.

[0036] In order to enable the base station to dynamically allocate uplink resources for specific uplink messages according to the performance of the current license-free system, the invented base station calculates the collision rate of specific uplink messages in the current frame, and judges whether the calculated collision rate reaches a preset threshold range, and if so, Then adjust the uplink time slot or / and sending backoff window occupied by the specific uplink message in the next frame.

[0037]Specifically, the base station of the present invention detects in the current frame whether the uplink time slots allocated to the user equipment to send these specific uplink messages meet the requirements, that is, the multiple specific uplin...

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Abstract

A method for distributing uplink resource includes calculating collision rate of specific uplink message current frame sent from multiple user device by base station, judging whether calculated out collision rate is in scope of set threshold or not, regulating uplink time slot and sending-backspace window occupied by next frame specific uplink information and sending information of regulated time slot and sending-backspace window to user device through downlink message at next frame as well as sending out specific uplink message by user device in next frame through regulated time slot and sending-backspace if it is not.

Description

technical field [0001] The present invention relates to a method for allocating wireless resources, in particular to a method for allocating uplink resources. Background technique [0002] Currently there are some license-exempt systems, such as wireless area network (WRAN) systems. Among them, WRAN technology is an emerging network technology that provides high-bandwidth and wide-range coverage for remote areas and low-density population areas. WRAN is a license-free operating network, that is, its operating frequency band does not require authorization. It uses cognitive radio technology to find the current free frequency band occupied by unlicensed users (LU) for communication, such as wireless digital television (DTV) Among the licensed frequency bands, an unoccupied frequency band is searched for as the bearer frequency band of the WRAN. [0003] WRAN uses Orthogonal Frequency Division Multiple Access (OFDMA) technology based on Time Division Duplex (TDD) for communic...

Claims

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Application Information

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IPC IPC(8): H04B7/26H04Q7/38
Inventor 吕林军揭明维
Owner HUAWEI TECH CO LTD
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