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Resource allocation for D2D communication

A communication resource and dedicated communication technology, applied in wireless communication, connection management, electrical components, etc., can solve problems such as the impossibility to guarantee the interference level, and achieve the effect of low signaling overhead and saving control signaling

Inactive Publication Date: 2014-06-04
BROADCOM CORP
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AI Technical Summary

Problems solved by technology

[0036] On the other hand, in the case where all D2D pairs / clusters can autonomously decide resource usage, it is impossible to guarantee an appropriate interference level, since the resource allocation of cellular users changes dynamically (e.g. due to fast scheduling with 1 ms interval, etc.)

Method used

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  • Resource allocation for D2D communication
  • Resource allocation for D2D communication
  • Resource allocation for D2D communication

Examples

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Embodiment Construction

[0058] Hereinafter, examples and embodiments of the present invention are described with reference to the accompanying drawings. In order to illustrate the invention, examples and embodiments will be described in connection with a cellular communication network based on the 3GPP LTE system.

[0059] It will however be noted that the invention is not limited to application using this type of communication system, but is also applicable in other types of communication systems and the like.

[0060] The basic system architecture of a communication network may include a known architecture of a communication system including a wired or wireless access network subsystem and a core network. Such an architecture may include one or more access network control units, radio access network elements, access service network gateways or basic transceiver stations, such as base stations (BS) or eNBs, communicating via one or more channels Or a device, such as a UE or another device with simi...

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Abstract

There is provided a mechanism for allocating communication resources of a cellular communication network to a D2D communication. After an eNB has configured a number of resource pools indicating a set of resources usable in the D2D communication, D2D clusters which share a same resource pool are enabled to obtain resources for their respective D2D communication. By detecting the current resource utilization state in the allocated resource pool by measurement on the UE side, it is decided whether suitable resources are available or not. An overload situation is signalled to the eNB if no suitable resource can be detected.

Description

technical field [0001] The present invention relates to a mechanism that can be used to allocate communication resources (such as frequency channels, time slots, etc.) of a communication network to a device-to-device communication connection between two or more communication network elements or devices (such as user equipment, etc.) . In particular, the present invention relates to apparatus, methods and computer program products that provide a mechanism by which resource allocation for device-to-device communication can be achieved with high resource efficiency and low signaling overhead. Background technique [0002] The following meanings for abbreviations used in this specification apply: [0003] BS: base station [0004] CDM: Channel Division Multiplexing [0005] CH: cluster head [0006] CQI: channel quality indicator [0007] D2D: Device to Device [0008] DL: downlink [0009] eNB: Enhanced Node B [0010] FDM: frequency division multiplexing [0011] ID: ...

Claims

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Application Information

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IPC IPC(8): H04W76/02
CPCH04W72/121H04W72/048H04W72/04H04W72/51
Inventor 高春艳汪海明S·J·阿科拉T·科斯克拉
Owner BROADCOM CORP
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