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Method, network control node and user equipment for realizing equipment straight-through relay selection

A technology of user equipment and relay nodes, applied in the field of D2D communication, can solve problems such as no solution for selecting a relay node and undetermined solutions

Active Publication Date: 2016-12-07
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing method does not determine the corresponding solution for the D2D user equipment in scenario 1, which mainly discovers the other party by sending or receiving discovery signals / information, scenarios 2 and 3, that is, does not give a solution for selecting a relay node

Method used

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  • Method, network control node and user equipment for realizing equipment straight-through relay selection
  • Method, network control node and user equipment for realizing equipment straight-through relay selection
  • Method, network control node and user equipment for realizing equipment straight-through relay selection

Examples

Experimental program
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Effect test

Embodiment 1

[0827] Officers A, B, C, and D (Officers A, B, C, and D generally refer to staff using user equipment) use public safety user equipment (UE) 1, UE2, UE3, and UE4 with D2D functions. Officers A, B, C, and D all subscribe to public safety services. At the rescue site, UE1 and UE2 are in a state of network coverage, while UE3 and UE4 are in a state of no network coverage. Considering that the adjacent base stations are damaged, both UE1 and UE2 with network coverage are interested in becoming relay nodes to provide relay services for UE3 and UE4 without coverage. For example, both UE1 and UE2 are interested in becoming terminal-to-network relay ( UE-to-network relay) are interested.

[0828] At this time, UE1 and UE2 can send D2D relay-related information to the network control node (the base station is used as the network control node as an example for illustration below), which includes an indication of interest in the relay, and the desired relay type (which can be UE-to -ne...

Embodiment 2

[0833] Mary, John and Peter own UE1, UE2 and UE3 with D2D communication and relay functions. UE1 and UE2 are within the D2D communication range of each other, UE2 and UE3 are within the D2D communication range of each other, and UE1 and UE3 are not within the D2D communication range of each other. UE1, UE2 and UE2 can obtain the D2D relay receiving resource pool information through pre-configuration, and can also receive the D2D relay resource pool information sent by the base station through broadcast or dedicated signaling. Assuming that UE1 wants to send a data packet to UE3 which is not within the D2D communication range by way of relay, UE1 may use resources in the D2D relay resource pool to send a broadcast message for searching for a D2D relay. Assuming that UE2 has the intention / interest to become a relay node, UE2 can monitor the D2D relay resource pool to check whether there is a UE looking for a D2D relay.

[0834] Assuming that UE2 listens to the information sent ...

Embodiment 3

[0838] Officers A, B, C and D use public safety UE1, UE2, UE3 and UE4 with D2D functions. Officers A, B, C, and D all subscribe to public safety services. At the rescue site, UE1 and UE2 are in a state of network coverage, while UE3 and UE4 are in a state of no network coverage. Considering that the adjacent base stations are damaged, both UE1 and UE2 with network coverage are interested in becoming relay nodes to provide relay services for UEs without coverage, such as UE1 and UE2 are both interested in becoming UE-to-network relay.

[0839] UE1 and UE2 can send measurement reports on the current cell and neighboring cells to the base station, where the measurement reports include the measurement results RSRP and RSRQ measurement values ​​of the current cell and / or neighboring cells, Figure 16 It is a schematic diagram of information interaction for implementing D2D relay selection in the third embodiment of the present invention, as shown in Figure 16 As shown, after rec...

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Abstract

The invention discloses a method, network control node and user equipment for realizing equipment straight-through relay selection. The method comprises the following steps: network control nodes receiving relay correlation information sent by user equipment and determining relay nodes; and the network control nodes sending straight-through relay configuration information to the determined relay nodes. According to the invention, through sending the relay correlation information in a network, the relay nodes are selected or configured, a corresponding solving method is provided for a scene not providing relay selection, and selection of the relay nodes is realized.

Description

technical field [0001] The present application relates to D2D communication technology, in particular to a method for implementing D2D relay selection, a network control node and user equipment. Background technique [0002] With the development of wireless multimedia services, people's demand for high data rate and user experience is increasing, which puts forward higher requirements on the system capacity and coverage of traditional cellular networks. On the other hand, application scenarios such as public security, social networks, short-distance data sharing, and local advertising have gradually increased the demand for Proximity Services (ProSe), which can understand and communicate with nearby people or things. The traditional base station-centric cellular network has obvious limitations in high data rate and proximity service support. Device-to-Device (D2D) technology, which represents a new direction for the development of future communication technology, is in this ...

Claims

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Application Information

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IPC IPC(8): H04W4/00H04W8/00H04W40/22H04W4/80H04W4/50H04W76/14
CPCH04W76/14H04W88/04H04W8/005H04W4/80H04W4/00H04W4/50H04W72/30H04W24/10H04W72/02
Inventor 陈琳吴栓栓戴博郁光辉谢峰黄莹
Owner ZTE CORP
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