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Cell reselecting method and equipment

A cell reselection, cell technology, applied in access restriction, electrical components, wireless communication and other directions, can solve problems such as MBMS interruption

Active Publication Date: 2011-11-09
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the home base station does not provide MBMS service, the MBMS that UE is receiving will be interrupted

Method used

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  • Cell reselecting method and equipment
  • Cell reselecting method and equipment
  • Cell reselecting method and equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0087]In this embodiment, in order to avoid reselection to HeNB (CSG cell) in general cell reselection evaluation, UE not only sets MBMS CC as the highest priority, but also forbids UE to reselect CSG cell with low priority.

[0088] Step 1: When the terminal receives MBMS data or determines that there is currently an MBMS it is interested in, set the priority of the frequency point where the MBMS transmission is located to the highest priority;

[0089] Step 2: The terminal selects the cell for reselection according to the existing cell reselection rules according to the set frequency point priority; if the selected cell for reselection is a CSG cell, the UE will not consider it as a candidate cell for reselection, and It is to reselect other cells as reselection candidate cells.

[0090] Optionally, when the network side stops sending the MBMS data or the terminal determines that it is not interested in the MBMS, the terminal restores the priority of the frequency point wher...

Embodiment 2

[0092] In this embodiment, in order to avoid reselection to HeNB (CSG cell) in the evaluation of CSG cell reselection, the UE not only sets the MBMS CC as the highest priority, but also disables the CSG automatic search function of the UE. Because the CSG automatic search function of the UE allows the UE to search for CSG cells without being restricted by the cell reselection priority, as long as the signal conditions are met and the CSG cells of which the UE is a member can be reselected, so even if the cell reselection priority is set to is the highest, the UE may still reselect to the CSG cell according to the current specification, resulting in interruption of MBMS data reception.

[0093] Step 1: When the terminal receives MBMS data or currently has an MBMS it is interested in, set the priority of the frequency point where the MBMS transmission is located to the highest priority, and disable its own CSG automatic search function;

[0094] Step 2: The terminal performs cel...

Embodiment 3

[0098] In this embodiment, in order to avoid reselection to HeNB (CSG cell) in CSG cell reselection evaluation, UE not only sets MBMS CC as the highest priority, but also prohibits UE from reselecting and prohibiting low priority CSG cell UE's CSG automatic search function.

[0099] Step 1: When the terminal receives MBMS data or currently has an MBMS it is interested in, set the priority of the frequency point where the MBMS transmission is located to the highest priority, and disable its own CSG automatic search function;

[0100] Step 2: The terminal selects the cell for reselection according to the existing cell reselection rules according to the set frequency point priority; if the selected cell for reselection is a CSG cell, the UE will not consider it as a candidate cell for reselection, and It is to reselect other cells as reselection candidate cells.

[0101] Optionally, when the network side stops sending the MBMS data or the terminal determines that it is not inter...

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Abstract

The embodiment of the invention discloses a cell reselecting method and equipment, relating to the technical field of wireless communication, and beings used for improving the continuity when user equipment (UE) receives multimedia broadcast multicast service (MBMS) data. In the cell reselecting method, when receiving the MBMS data or determining that MBMS data in which a terminal is interested exists currently, the terminal sets the priority level of the frequency point at which the MBMS data are transmitted to be highest, and forbids the MBMS data to be reselected to a closed user group (CSG) cell and / or forbids the automatic CSG search function, thus the continuity when the UE receives MBMS data is improved.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a cell reselection method and equipment. Background technique [0002] Multimedia Broadcast Multicast Service (MBMS) is used to provide multimedia broadcast and multicast services for users in wireless cells. In the Long Term Evolution (LTE) system, MBMS can be provided on both the frequency layer dedicated to MBMS and the frequency layer shared with non-MBMS services. An LTE cell supporting MBMS can be an MBMS dedicated cell or an MBMS / unicast hybrid cell. The MBMS service can be transmitted in a single cell or in multiple cells. The multi-cell transmission of MBMS needs to support the multicast single frequency network (MBSFN) transmission mode. [0003] The so-called MBSFN transmission mode refers to synchronous transmission in multiple cells at the same frequency at the same time, that is to say, the cells in the same MBSFN area are cells with the same frequen...

Claims

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Application Information

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IPC IPC(8): H04W4/06H04W36/26H04W48/02
Inventor 彦楠梁靖谌丽
Owner DATANG MOBILE COMM EQUIP CO LTD
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