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A method for establishing an RRC connection in a satellite communication system

A satellite communication system and connection establishment technology, applied in the fields of wireless resource management and mobile satellite communication protocol stack, can solve the problems such as failure to establish an RRC connection normally, failure of an AGCH channel to carry an RRCConnectionSetup message, etc.

Inactive Publication Date: 2020-02-28
PANDA ELECTRONICS GROUP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0017] The object of the present invention is, the method for establishing RRC connection in the proposed satellite communication system, the description of related technologies for the establishment of RRC connection in the mobile satellite communication system; solve the problem that the satellite communication system based on the GMR-1 3G protocol standard cannot bear the weight of the AGCH channel and include channel assignment The problem of the RRC Connection Setup message of the information unit, so as to solve the problem that the RRC connection cannot be established normally based on the GMR-1 3G protocol standard, and then successfully complete the RRC connection establishment process

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  • A method for establishing an RRC connection in a satellite communication system
  • A method for establishing an RRC connection in a satellite communication system
  • A method for establishing an RRC connection in a satellite communication system

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Embodiment Construction

[0027]The MES initiates the RRC CONNECTION REQUEST message on the RACH, and the GSS sends the IMMEDIATE ASSIGNMENT message to the MES on the AGCH according to the request reason and other information elements to establish the SRB bearer and assign channel resources. The MES establishes the downlink SRB bearer and receives the RRC CONNECTION SETUP message on the bearer, then enters the RRC-Cell_Shared state or the RRC-Cell_Dedicated state according to the message indication, and completes the sending of the RRC CONNECTIONSETUP COMPLETE message on the uplink SRB. So far, the RRC connection establishment is completed.

[0028] The structure of the RRC CONNECTION SETUP message in the GMR-1 3G protocol standard is shown in Table 1.

[0029] Table 1 RRC CONNECTION SETUP message structure

[0030]

[0031]

[0032] It can be seen from Table 1 that the RRC CONNECTION SETUP message does not contain information elements such as time-frequency information necessary to assign a cha...

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Abstract

The invention provides an RRC connection establishment method in a satellite communication system. IMMEDIATE ASSIGNMENT signaling information containing a channel assignment related information unit is added on the basis of RRC connection establishment procedures of original protocol according to the GMR-13G protocol standard. The signaling information is sent to an MES via a gateway station subsystem (GSS). After receiving the RRC CONNECTION REQUEST information of the MES, the GSS will replies the IMMEDIATE ASSIGNMENT information, and then replies the RRC CONNECTION SETUP information.

Description

[0001] 1. Technical field [0002] The invention relates to the technical field of mobile satellite communication protocol stack and wireless resource management. [0003] 2. Background technology [0004] When the mobile terminal (MES) is in idle mode, when the non-access stratum (NAS) of the MES requests to establish a signaling connection, the MES will initiate an RRC connection establishment process. There is at most one RRC connection per MES. [0005] When the gateway station controller (GSC) receives the RRC CONNECTION REQUEST message of the MES, its radio resource management module (RRM) determines whether to accept or reject the RRC connection establishment request according to a specific algorithm. [0006] In the first generation mobile satellite communication system based on the GMR-1 series of protocol standards, the RR layer allocates radio resources in two forms, namely early assignment and very early assignment. Early assignment, that is, the network first ass...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W76/27H04W84/06
CPCH04W76/27H04W84/06
Inventor 朱礼勇刘剑锋汪小军王鑫肖跃
Owner PANDA ELECTRONICS GROUP