Priority-based competitive ranging method and device for mobile terminals

A mobile terminal and priority technology, applied in wireless communication, network traffic/resource management, electrical components, etc., can solve problems such as inability to differentiate user terminals and inability to guarantee CSG user service quality

Inactive Publication Date: 2015-01-28
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The existing CSG-open femtocell cells cannot provide differentiated services for the user terminals in them, and for the user terminals in the CSG-open femtocell cells, the service quality of CSG users cannot be guaranteed

Method used

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  • Priority-based competitive ranging method and device for mobile terminals
  • Priority-based competitive ranging method and device for mobile terminals
  • Priority-based competitive ranging method and device for mobile terminals

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0082] This example is applicable to ranging performed by CSG user terminals and non-CSG (non-CSG) user terminals under the CSG-Open femtocell BS.

[0083] The system configures the initial, handover, periodic, and bandwidth request ranging areas. The so-called ranging area is the time-frequency resource area selected by the user terminal when sending the ranging code, that is, the user terminal should carry the ranging code in the system subframe Area. Dedicated ranging code sets are configured for different ranging purposes. In this example, the CSG user terminal and the non-CSG user terminal share the initial ranging area and the initial ranging code set, and the CSG user terminal and the non-CSG user terminal perform initial ranging, and will randomly select the ranging code from the ranging code set, And the selected ranging code is carried in the ranging area, and the ranging code is sent to the base station side through the corresponding channel, and the base station s...

Embodiment 2

[0095] This example applies to ranging performed by CSG user terminals and non-CSG user terminals under the CSG-Open femtocell BS.

[0096] The implementation of ranging in this example is basically the same as that in Embodiment 1. The difference is that when the user receives the ranging response and the status is "Continue", the CSG user terminal adopts a random selection method on one or more subframes. A ranging opportunity is randomly selected in the ranging area, and a non-CSG user randomly selects a ranging opportunity in a periodic ranging area within a backoff window in a random backoff manner.

[0097] When no ranging response is received, if it is a CSG user terminal, the user terminal randomly selects a ranging opportunity in an initial ranging area within a backoff window in a random backoff mode; if the user is a non-CSG user, The user expands the original backoff window by a factor of 2 to the power of n (n>=1), and randomly selects a ranging opportunity in the...

Embodiment 3

[0100] This example applies to ranging performed by CSG user terminals and non-CSG user terminals under the CSG-Open femtocell BS. The implementation of ranging in this example is basically the same as that in Embodiment 1. The difference is that when the user terminal does not receive a ranging response, the CSG user terminal and the non-CSG user terminal perform the initial ranging Select a ranging opportunity within the range area.

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Abstract

A priority-based contention ranging method for mobile terminals is provided by the present invention, which relates to the ranging technology for subscriber terminals, and is proposed for solving the problem that the ranging service difference can not be embodied on the prioritized subscriber terminals. The used technical solution includes the following steps: according to the owned priorities, the subscriber terminals send selected ranging codes on selected opportunities, and perform ranging. The invention also disclosed a ranging apparatus for the method above. The invention advantageously ensures the communication service quality of different subscriber terminals, and embodies the different services in communication better.

Description

technical field [0001] The present invention relates to uplink ranging technology of user terminals, in particular to a priority-based contention ranging method and device for CSG user terminals and non-CSG user terminals located in a semi-open CSG cell. Background technique [0002] In order to make up for the weakness of indoor coverage and low throughput of macro base stations, femtocells, which provide services for individual users or group users, appear in mobile communication systems in order to provide mobile user terminals with higher quality and higher throughput. Efficient wireless access. Users can purchase or install a Femtocell Base Station (Femtocell BS, Femtocell Base Station) by themselves. Femtocell BSs can be further divided into three types according to the types of users served by picocell base stations. One is CSG-closed femtocell BS (Closed Subscriber Group-closed femtocell BS). And only provide services to its authorized users; the second type is par...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W74/08
CPCH04W28/16
Inventor 吕开颖曲红云鲁照华刘颖刘扬谢峰
Owner ZTE CORP
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