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Initial access method and transmission method of initial access signaling

A technology of initial access and transmission method, which is applied in the field of wireless communication, and can solve problems such as failure to send, long delay, etc.

Inactive Publication Date: 2012-04-18
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, if the resources authorized by Node B at one time are not enough for the UE to complete the transmission of all MAC-i packets, then the subsequent authorization cannot be sent, and the UE can only re-initiate a new random access to apply for resources, which will bring to a larger delay

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  • Initial access method and transmission method of initial access signaling
  • Initial access method and transmission method of initial access signaling
  • Initial access method and transmission method of initial access signaling

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Embodiment Construction

[0062] The technical solution of the present invention will be described in more detail below with reference to the drawings and embodiments.

[0063] A method for transmitting initial access signaling in a CELL_FACH state, comprising the following steps:

[0064] a. The user equipment sends an enhanced random access request to the Node B, which carries indication information indicating that the data to be transmitted is an initial access signaling and data volume information of the data to be transmitted;

[0065] b. If Node B judges that the data to be transmitted is an initial access signaling according to the above indication information, then use the above data amount information and the maximum number of retransmissions to authorize the user equipment with sufficient resources to transmit the data to be transmitted; wherein, the maximum retransmission The number of transmissions is the number of HARQ retransmissions configured by the upper layer of the network for the si...

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Abstract

The invention relates to a method for transmitting initial access signaling under a cell-forward access channel (CELL-FACH) state and an initial access method, comprising the following steps: UE transmits an enhanced random access request to a node B, wherein the enhanced random access request carries indication information used for indicating that data to be transmitted is the initial access signaling and data quantity information of the data to be transmitted; enough resources for transmitting the data to be transmitted is licensed to the UE by using the data quantity information and the maximum retransmission time if the node B judges the data to be transmitted is the initial access signaling according the indication information; the UE transmits and retransmits the data to be transmitted on the licensed resource, and the UE is succeeded in the initial access if the transmission of the data to be transmitted is successfully completed when the resource authorization comes to an end. The invention can solve the problem that the prior system can not support the sectional transmission of the initial access signaling through an authorization mode of engaging the node B to the initial access signaling, and the invention is simple and practical.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a method for initial access in a CELL_FACH (cell_forward access channel) state and a transmission method for initial access signaling. Background technique [0002] 3GPP (Third Generation Mobile Communications Partnership) is currently working on the standardization of uplink enhancement in the CELL_FACH state. The CELL_FACH state uplink enhancement introduces the E-DCH (Enhanced-Dedicated Transport Channel) transmission channel in the CELL_FACH state to enhance the uplink packet data transmission performance of this state, so that it can obtain smaller packet transmission delay and higher transmission rate. [0003] E-DCH transmission is commonly referred to as HSUPA (High Speed ​​Uplink Packet Access). HSUPA uses advanced physical layer technology to obtain high transmission efficiency. In versions prior to 3GPP Rel-7, E-DCH transmission is only used in the CELL_...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/28H04L12/56H04L1/08
Inventor 陈慧
Owner ZTE CORP