Network device, user device and methods of access signal broadcast

Abstract

The present invention relates to a user device and a network node. The user device (10) comprises a transceiver (11) configured to broadcast an access signal SA when not being connected to any radio communication networks, wherein the access signal SA comprises identity information of the user device (10), receive an access response signal SR from a radio communication network in response to broadcasting the access signal SA, wherein the access response signal SR comprises an indication of at least one assigned frequency spectrum segment for communication in the wireless communication system (30), communicate with at least one network node (20a, 20b,..., 20n) of the radio communication network using the at least one assigned frequency spectrum segment. The network node (20) comprises a transceiver (21) and a processor (22); wherein the transceiver (21) is configured to receive a broadcasted access signal SA from a user device (10), wherein the broadcasted access signal SA comprises identity information of the user device (10); wherein the processor (22) is configured to assign at least one frequency spectrum segment for communication for the user device (10) based on the broadcasted access signal SA and wherein the transceiver (21) is further configured to transmit an access response signal SR to the user device (10), wherein the access response signal SR comprises an indication of the at least one assigned frequency spectrum segment for communication in the wireless communication system (30), that is assigned according to a performance indicator associated to the frequency spectrum segment. The network node may collaborate with other network nodes that provide a further performance indicators associated to a further frequency spectrum segments, so as to select the most appropriate serving network node and frequency spectrum node, so as to maximize overall network performance in terms of throughput and spectrum efficiency and energy consumption.

Description

technical field [0001] The invention relates to a network node and user equipment for a wireless communication system. Furthermore, the invention also relates to a corresponding method, computer program and computer program product. Background technique [0002] To meet the surge in traffic demands and connections, radio technologies for communication systems are gradually shifting towards more flexible utilization of the available spectrum at the network nodes forming the radio access network infrastructure and low power with smaller coverage areas Dense deployment of network nodes. [0003] In this regard, user quality of experience (eg, in terms of average data rate) can be improved by more flexible and dynamic connections established with network nodes that have the potential and resources to provide the desired service. Hence, the user equipment should be connected to a network node that does not necessarily provide the best signal strength but has more available reso...

AI Technical Summary

Problems solved by technology

In turn, the problem of controlling and making flexible spectrum utilization on the network side becomes a problem of associating / connecting a user equipment to a spectrum segment and thus to a corresponding network node that can provide the service desired by the user equipment, rather than guaranteeing a connection with the spectrum segment. Network node connections that provide the best signal strength

However, this is not sufficient to guarantee that the user equipment is connected to or handed over to a network node that has the potential to provide the required service

[0016] A disadvantage of the related art is that when detecting synchronization signals and measuring reference signals associated to one or more network nodes, user equipment tries to access the network at the network node that provides the best signal strength and not necessarily the best service

[0017] However, this requires additional system resources after the initial random access, and the overall procedure can take hundreds of milliseconds before the user equipment finally connects to the network node that can provide the best service

[0018] A second disadvantage of the related art is that it requires the user equipment to first search and detect the presence of the network, rather than the network searching and detecting the presence of the user equipment

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