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Uplink access method, device and system

An access method and technology for head-end equipment, applied in the field of communications, can solve problems such as resource waste, and achieve the effects of avoiding resource waste, stabilizing relative relationships, and improving data throughput

Active Publication Date: 2013-01-30
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the wired system, since the relative relationship between the terminal and the head-end equipment is stable, more uplink access resources are kept for uplink access, which will inevitably cause unnecessary waste of resources

Method used

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  • Uplink access method, device and system
  • Uplink access method, device and system

Examples

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Embodiment Construction

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0031] figure 1 It is a flowchart of an uplink access method provided by an embodiment of the present invention. like figure 1 As shown, the uplink access method provided in this embodiment can be specifically applied to the detection process of an OFDMA system for an uplink access user. The OFDMA system can specifically be a point-to-multipoint...

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PUM

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Abstract

Embodiments of the invention provide an uplink access method, device and system. The uplink access method comprises setting the reservation resources and sending the reservation resource notification information to at least one terminal; receiving the reservation signals transmitted by at least one terminal via the reservation resources; and sending the uplink access resource allocation message to the at least one terminal according to the reservation signals, so that the at least one terminal performs uplink access by means of the uplink access resources corresponding to the access resource allocation message. According to the uplink access method, device and system of the invention, a head-end device allocates the reservation resources at first and then allocates the uplink access resources to the terminal only after the reservation signals transmitted by the terminal is received, thereby preventing unnecessary resource waste which may be caused by the fact that many uplink access resources are always kept for uplink detection.

Description

technical field [0001] Embodiments of the present invention relate to communication technologies, and in particular to an uplink access method, device and system. Background technique [0002] Orthogonal Frequency Division Multiple Access (OFDMA) system is based on multiple access technology, which divides the transmission bandwidth into a series of orthogonal non-overlapping subcarrier sets, and assigns different subcarrier sets to Different users implement multiple access. The OFDM system can dynamically allocate available bandwidth resources to users in need, and it is easy to realize optimal utilization of system resources. Since different users occupy non-overlapping subcarrier sets, the system has no multi-user interference under ideal synchronization conditions. [0003] At present, the uplink access of the OFDMA system is mainly to allocate a fixed time-frequency block for uplink access. In order to ensure that different users use the same orthogonal sequence to re...

Claims

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Application Information

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IPC IPC(8): H04W72/04H04L27/26
CPCH04W28/26
Inventor 张晓风石操
Owner HUAWEI TECH CO LTD
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