Contention based uplink transmitting method and system

A transmission method and mapping relationship technology, applied in the field of communication, can solve problems affecting system performance, retransmission conflicts, delayed uplink, etc.

Active Publication Date: 2011-08-17
ZTE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] In the prior art, the contention-based uplink transmission process has not yet clarified whether it supports HARQ and the specific mechanism of HARQ. The first transmission of uplink transmission may cause resource conflicts, resulting in delay and system performance degradation. If HARQ retransmission is supported, then retransmission Further conflicts may occur and cause problems such as greater delay and uplink interference, which seriously affect system performance

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  • Contention based uplink transmitting method and system
  • Contention based uplink transmitting method and system
  • Contention based uplink transmitting method and system

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Embodiment Construction

[0078] The technical solutions of the present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments.

[0079] In order to reduce resource conflicts in the contention-based uplink transmission process, the present invention provides a contention-based uplink transmission method, such as image 3 As shown, it mainly includes the following steps:

[0080] In step 301, the network side device broadcasts or configures one or more CB-RNTIs to the terminal, and allocates uplink resources corresponding to the one or more CB-RNTIs to the terminal.

[0081] In step 302, the terminal selects from uplink resources corresponding to one or more CB-RNTIs according to preset conditions, and performs uplink transmission according to the selected uplink resources.

[0082] Wherein, the network side device in the present invention refers to a base station. The preset condition may be pre-specified, or broadcast or configured to the te...

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Abstract

The invention discloses a contention based uplink transmitting method. The method comprises the following steps that: network side equipment broadcasts or configures one or more cell broadcast radio network temporary identifiers (CB-RNTI) to a terminal and allocates uplink resources corresponding to one or more CB-RNTI to the terminal; and the terminal selects the uplink resource from the uplink resources corresponding to one or more CB-RNTI according to the preset conditions and carries out uplink transmission according to the selected uplink resource. The invention also discloses a contention based uplink transmitting system. The method and the system have the beneficial effects of reducing resource conflicts in the contention based uplink transmitting process and improving the system performance.

Description

technical field [0001] The present invention relates to resource allocation technology in the communication field, in particular to a contention-based uplink transmission method and system. Background technique [0002] In a long-term evolution (LTE, Long Term Evolution) wireless system, a terminal (UE, User Equipment) may request uplink resources from the network side, that is, to the Evolved Universal Terrestrial Radio Access Network (E-UTRAN, Evolved Universal Terrestrial Radio Access Network) This is accomplished by sending a Scheduling Request (SR, Scheduling Request) on a Physical Uplink Control Channel (PUCCH, Physical Uplink Control Channel) through an air interface (Radio Interface) or by triggering a random access process. The former is used for terminals that are in the radio resource control connected state (RRC_CONNECTED) and are in synchronization with the network when dedicated PUCCH resources are configured; the latter is used for terminals that need to acces...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W48/10H04W72/04H04L1/00
Inventor 张健喻斌黄亚达
Owner ZTE CORP
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