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Bearer management method and bearer management device in equipment direct-communication system

A technology for device direct connection and management method, which is applied in connection management, wireless communication, electrical components, etc.

Active Publication Date: 2016-11-23
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The existing technology does not provide a systematic and complete solution for the bearer configuration between the remote D2D user equipment and the relay device in the relay transmission mode of the second and third scenarios

Method used

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  • Bearer management method and bearer management device in equipment direct-communication system
  • Bearer management method and bearer management device in equipment direct-communication system
  • Bearer management method and bearer management device in equipment direct-communication system

Examples

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Effect test

example 1

[0202] In the public security scenario, Officer A and Officer B use public security UE1 and UE2 with D2D functions. Officer A and Officer B both subscribe to public security services. At the rescue site, UE1 is in a state with network coverage, while UE2 is in a state without network coverage. UE2 wants to communicate with the network, finds that UE1 can be used as a relay node or receives an advertisement broadcast by UE1 that can be used as a relay node, UE2 tries to establish a connection with UE1 and completes the bearer configuration, through the relay UE1 (UE-to- network Relay) communicates with the network for forwarding data.

[0203] After the remote UE2 establishes a connection with the relay UE1, if UE2 has data to send to the network, UE2 sends a D2D bearer configuration request message to UE1 to request UE1 to configure a D2D data bearer, such as Figure 4shown. The D2D bearer configuration request information includes at least one of QCI, allocation and reserv...

example 2

[0209] In the public security scenario, Officer A and Officer B use public security UE1 and UE2 with D2D functions. Officer A and Officer B both subscribe to public security services. At the rescue site, UE1 is in a state with network coverage, while UE2 is in a state without network coverage. UE2 wants to communicate with the network, finds that UE1 can be used as a relay node or receives an advertisement broadcast by UE1 that can be used as a relay node, UE2 tries to establish a connection with UE1 and completes the bearer configuration, through the relay UE1 (UE-to- network Relay) communicates with the network for forwarding data.

[0210] In addition to the scenario where the connection establishment process between the remote UE2 and the relay UE1 is performed independently of the D2D data bearer configuration process between them, it can also be considered to combine the bearer configuration process into the connection establishment process, which can reduce the distanc...

example 3

[0212] When the network has data to be sent to a remote UE that has established a connection with the relay node through the relay node, the relay node maps the service data to the D2D bearer according to the downlink TFT information of the remote UE obtained from the Prose function, If the mapping is successful, the resource load of the relay node is used to determine whether to configure a new D2D bearer for the remote UE, and if configured, the relay node sends a bearer configuration / reconfiguration message to the remote UE. The specific process is as Figure 6 shown.

[0213] If there are not enough available resources to establish a new D2D bearer, if the QoS parameters of the bearer to be established have a high Allocation Reservation Priority (ARP) and are preemptible, you can consider preempting the established low ARP priority and can be preempted resources corresponding to the bearer of the specified ARP priority to establish the bearer with high ARP priority.

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Abstract

The invention provides a bearer management method and a bearer management device in an equipment direct-communication system. The method comprises the steps as follows: remote UE receives D2D bearer configuration information sent by a relay node; and the remote UE completes D2D bearer configuration according to the D2D bearer configuration information.

Description

technical field [0001] The present invention relates to the field of communications, and in particular to a management method and device carried in a D2D system. 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 networking, short-distance data sharing, and local advertising have gradually increased people's demand for understanding and communicating with nearby people or things (Proximity Services). The traditional base station-centered cellular network has obvious limitations in terms of high data rate and proximity service support. Against this background of demand, D2D (Device-to-Device, device-to- equipment) technology came into being. The application of D2D technology can reduce the burd...

Claims

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Application Information

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IPC IPC(8): H04W76/02H04W76/04H04W76/06
Inventor 汪梦珍陈琳黄莹
Owner ZTE CORP
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