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A random access method, base station, user equipment and system

A user equipment, random access technology, applied in electrical components, synchronization devices, wireless communication, etc., can solve problems such as UE random access failure, affecting user experience on the network, prolonging access time, etc., to reduce access time, improve user experience, and improve processing power

Active Publication Date: 2016-08-10
CHINA MOBILE GRP GUANGDONG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the increase of the number of users in the network and the increase of user activity, it is easy for multiple UEs to initiate random access procedures in a short period of time. In this case, it is limited by the existing TD-SCDMA system The processing method of the access process is likely to cause UE random access failure, prolong its access time, and seriously affect the user's experience in using the network

Method used

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  • A random access method, base station, user equipment and system
  • A random access method, base station, user equipment and system
  • A random access method, base station, user equipment and system

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Experimental program
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Embodiment approach

[0159] As a preferred implementation manner, the sending unit may include:

[0160] The FPACH message generation unit is used to extract the signature sequence of the UE from the synchronization request sent by each UE; from the extracted signature sequences, select the signature sequence that has only appeared once; the signature sequence that has only appeared once The corresponding UE, as a related UE, fills the UpPCH of the related UE according to the filling position POS , construct and obtain the FPACH message.

[0161] Please refer to Figure 8 , a UE provided by an embodiment of the present invention may specifically include:

[0162] a sending unit, configured to send an uplink synchronization request to the base station through the UpPCH, the uplink synchronization request carrying the signature sequence of the UE;

[0163] a receiving unit, configured to receive a system message and an FPACH message sent by the base station, wherein the system message carries the...

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Abstract

The invention provides a random access method, a base station, user equipment and a system. The method comprises the following steps: the base station receives uplink synchronization requests sent by all user equipment; the base station confirms to receive the UpPCHPOS of each user equipment, and determines the corresponding filling positions of signature sequence numbers of all user equipment as per predefined rules; the base station fills the UpPCHPOS of each user equipment as per the filling positions to generate FPACH information and send the information; and the base station broadcasts signature sequence numbers of related user equipment and corresponding Transmit power commands (TPLC) on RACH through system information. According to the invention, the random access processing capacity of a TD-SCDMA system is improved, the possibility of random access failure is reduced, and the use experience of a user to the network is improved.

Description

technical field [0001] The present invention relates to the field of time division synchronous code division multiple access (TD-SCDMA, Time Division-Synchronous Code Division Multiple Access) communication technology, in particular to TD-SCDMA system and its random access method, base station (NodeB)) and user equipment (UE, User Equipment) Background technique [0002] The TD-SCDMA standard is one of the third-generation mobile communication (3G) standards. The TD-SCDMA system supports services with asymmetric uplink and downlink rates, and integrates Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA) and Frequency Division Multiple Access. At the same time, the TD-SCDMA system also uses smart antenna technology, relay handover technology between hard handover and soft handover, and can use multi-user detection technology in the user equipment receiver, making this project The 3G solution has many special advantages. [0003] The initial procedure...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W56/00H04W74/08
Inventor 许时彰吴朝健许鑫燕孔祥刚
Owner CHINA MOBILE GRP GUANGDONG CO LTD