Upward auess-in method and apparatus

A technology for access requests and users, applied in the field of communication, can solve the problems that high-priority users cannot be guaranteed to receive services first, and achieve the effect of avoiding priority occupation of channels

Active Publication Date: 2006-10-25
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] The present invention provides an uplink access method and device to solve the problem in the prior ...

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  • Upward auess-in method and apparatus
  • Upward auess-in method and apparatus

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Embodiment Construction

[0032] In this embodiment, the GT800 system is taken as an example for description.

[0033] At present, the priority service of the GT800 system is only used in the preemption of the voice channel. Through the preemption, the high-priority user forcibly occupies the voice channel of the low-priority user to ensure the call right of the high-priority user.

[0034] In the current 3GPP 44018 protocol, if a terminal device waits for 100ms after sending an uplink access request and does not receive a response from the network side, it considers that an uplink collision occurs (that is, 100ms is the maximum time for a terminal device to receive a network response by default), and an uplink collision occurs. All colliding users randomly delay the uniform time slice 0-20ms to re-initiate a second uplink access request.

[0035] In priority services, when a low-priority user is speaking, a high-priority user may also preempt while a high-priority user is preempting, and preemption co...

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Abstract

After collision occurs on up going access request initiated by terminal device, the method generates random time interval of retransmission based on users' priorities. Random time interval of retransmission for user in high priority is smaller than random time interval of retransmission for user in low priority. After delaying the random time interval, terminal device retransmits up going access request. The invention also discloses a terminal device including following units: sending unit in use for sending up going access request; generation unit of time interval in use for generating random time interval of retransmission for controlling the sending unit to retransmit up going access request. Based on priorities of users, the invention controls user's second access time so as to prevent user in low priority from preempting channel. The invention guarantees preemption of user in high priority.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to an uplink access method and device. Background technique [0002] Based on the TDMA technology system, GT800 digital trunking system integrates the large capacity and rich personal services in the public mobile network with the features of fast calling, shared channels and powerful dispatching functions in the digital trunking technology, which can fully meet the needs of private and public trunking network users need. Based on mature GSM technology, GT800 digital trunking system refers to the business characteristics of existing mature trunking systems in the world, optimizes and expands the call flow and network structure of the existing GSM network, so that GT800 system has the characteristics of a professional trunking dispatching system Performance metrics and scheduling capabilities. [0003] Compared with the existing trunking system, GT800 is richer in bu...

Claims

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Application Information

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IPC IPC(8): H04W74/08
CPCH04W74/0875
Inventor 杨长东
Owner HUAWEI TECH CO LTD
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