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Uplink resource allocation for relay node based communication

A link resource and resource technology, applied in the field of wireless communication systems, can solve problems such as low output power and system gain reduction

Active Publication Date: 2017-08-25
CONVIDA WIRELESS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually there is enough system gain in the downlink (base station to terminal equipment) to support MTC equipment (or user equipment UE) (MTC-UE) at the cell edge of the macrocell of the eNodeB (eNB), but due to the low output of the MTC equipment power, the system gain in the uplink (end-device to base station) is significantly reduced compared to the downlink

Method used

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  • Uplink resource allocation for relay node based communication
  • Uplink resource allocation for relay node based communication
  • Uplink resource allocation for relay node based communication

Examples

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Embodiment Construction

[0083] First refer to Figure 1A and 1B , provides a comparison of the symmetric uplink / downlink single-hop signaling case and the asymmetric uplink / downlink signaling case when applied to a relay network. Figure 1A A symmetrical uplink / downlink situation is shown, where communication is in the downlink 10a from the base station 7a to a plurality of terminal devices 9a via the relay device 8a, and from the terminal device 9a to the base station via the relay device 8a The uplink 11a of 7a hops on both. Figure 1B An asymmetric uplink / downlink situation is shown, where communication is directly on the downlink 10b from the base station 7b to the terminal device 9b, but on the uplink 10b from the terminal device 9b to the base station 7b via a relay device 8b Single hop on link 11b. The base station 7b can also be on the downlink 12b (in Figure 1B The dotted line in ) transmits control signaling to the relay device 8b to control the operation of the relay device 8b. It shou...

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Abstract

A wireless communication system is described which includes a base station, a relay device and a terminal device. The terminal device is operable to receive from the base station an allocation of uplink resources for transmitting uplink data to the relay device, and to transmit uplink data to the relay device using the uplink resources allocated to the terminal device. relay device. The relay device is operable to receive transmitted uplink data from a terminal device on allocated resources, to relay received uplink data to the base station to receive an allocation of uplink resources, and to use The uplink resource allocated to the relay device transmits the received uplink data to the base station.

Description

technical field [0001] The present invention relates to wireless communication systems and methods. Another aspect of the invention relates to a base station, a relay device, a terminal device and a computer program. Background technique [0002] As a new trend of wireless communication network application technology that generally does not require human-computer interaction, Machine Type Communication (MTC) is discussed in various wireless communication standards. [0003] The broad definition of MTC is an automated communication network for sending and receiving between machines. A major class of MTC devices is expected to have very low power consumption, little data transfer, and many terminals. An example of an MTC that falls into this category could be, for example, the monitoring of energy consumption of household appliances for smart grid systems. [0004] Uplink-only relaying is a network topology that addresses transmit power limitations in low-cost machine-type ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/04
CPCH04W84/047H04W72/04H04W74/0833H04W72/23H04L5/0094H04W72/1263H04W74/006H04W88/04H04W72/21H04B7/155
Inventor 蒂莫西·詹姆斯·斯佩特保罗·威廉·皮格金
Owner CONVIDA WIRELESS LLC