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Method and device of inter-cell switching

A technology of switching commands between cells, applied in the field of communication, can solve problems such as D2D communication interruption

Active Publication Date: 2013-07-10
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Since the current D2D technology is immature, it only supports communication between two or more UEs in the same cell; when two or more UEs switch to another cell at the same time, the D2D communication between UEs will be interrupted

Method used

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  • Method and device of inter-cell switching

Examples

Experimental program
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Embodiment 1

[0029] The embodiment of the present invention provides a method for inter-cell handover, such as figure 1 As shown, the method includes:

[0030] 101. UE1 reports a measurement report to a source base station, and the measurement report is used for the source base station to judge whether UE1 and UE2 currently performing D2D communication can be handed over to a target cell synchronously.

[0031] Specifically, the measurement report is used for the source base station to judge whether UE1 can be handed over to the target cell, and whether the UE1 and UE2 can be handed over to the target cell synchronously, and the measurement report may include measurement information of UE1's neighboring cells , measurement information of adjacent cells of UE2, and path loss information between UE1 and UE2, etc.

[0032] It is worth noting that the embodiment of the present invention is described by taking two UEs performing D2D communication as an example. In actual application, there may...

Embodiment 2

[0037] The embodiment of the present invention provides a method for inter-cell handover, such as figure 2 As shown, the method includes:

[0038] 201. The base station judges whether UE1 and UE2 currently performing D2D communication can be handed over to the target cell synchronously according to the measurement reports reported by UE1 and UE2.

[0039] Specifically, the measurement report may include measurement information of neighboring cells of the UE performing D2D communication, and other information such as path loss information between two or more UEs performing D2D communication, but is not limited thereto.

[0040] Specifically, the base station may judge whether the UE can be handed over to the target cell according to the measurement report reported by the UE, and whether the UE currently performing D2D communication can be handed over to the target cell synchronously. The base station can use but not limited to the following methods to determine whether the UE...

Embodiment 3

[0047] The embodiment of the present invention provides a method for inter-cell handover, such as image 3 As shown, the method includes:

[0048] 301. Perform D2D communication between two or more UEs that are relatively close to each other.

[0049] Specifically, the D2D communication may be a voice call, sharing data or sending files, etc., but not limited thereto.

[0050] For ease of understanding, the embodiment of the present invention is described by taking two UEs performing D2D communication as an example, and the two UEs are marked as UE1 and UE2. It is worth noting that the number of UEs performing D2D communication in practical applications is not limited to two.

[0051] 302. UE1 and UE2 respectively measure neighboring cells and current D2D communication, and report measurement reports according to the measurement results.

[0052] Specifically, the measurement report includes, but is not limited to: measurement results of adjacent cells of the two UEs, and p...

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Abstract

The invention discloses a method, a device and a system of inter-cell switching and relates to the field of communications. The method, the device and the system of the inter-cell switching are used for solving the problem that device-to-device (D2D) communication is interrupted when user equipment carrying out the D2D communication is switched to an adjacent cell. The method includes the following steps: a first set of user equipment submits a measurement report to a source base station, and the measurement report is used for judging whether the first set of user equipment and a second set of user equipment which directly carry out D2D communication among the equipment at present can be switched to a target cell synchronously by the source base station; and when a switching command is received, the first set of user equipment is switched to the target cell from a source cell belonging to the source base station and continues to carry out D2D communication with the second set of user equipment. The method, the device and the system of the inter-cell switching are applicable to the field of communications and used for achieving the inter-cell switching of the D2D communication.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and device for handover between cells. Background technique [0002] In a traditional cellular mobile communication network, the communication between UEs (User Equipment, user equipment) needs to be centrally controlled by the base station, and the base station schedules the wireless resources in the cell, and the user data sent by the UE passes through the base station to the core network. , and then send it to the base station where the target UE is located, and finally send the user data to the target UE through the base station where the target UE is located. [0003] In a traditional cellular network, even when communicating between two very close UEs, user data needs to pass through the base station and the core network. However, with the rapid development of cellular networks, the network capacity in many areas is close to saturation. In order to reduce the lo...

Claims

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Application Information

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IPC IPC(8): H04W36/08H04W24/10H04W88/02H04W88/08
CPCH04W36/0058
Inventor 李亚娟常俊仁
Owner HUAWEI TECH CO LTD
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