CN105900492B

CN105900492B - A kind of control node, network node and the method for accessing network

Info

Publication number: CN105900492B
Application number: CN201480072595.XA
Authority: CN
Inventors: 蒋广健; 王艺; 黄磊
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2014-06-24
Filing date: 2014-06-24
Publication date: 2019-07-19
Anticipated expiration: 2034-06-24
Also published as: CN105900492A; WO2015196358A1

Abstract

A kind of control node, network node and the method for accessing network, this method comprises: the networking request message that the network node for receiving the high frequency network to be accessed is sent；Determine at least one neighbor node of the network node；The first high frequency measurement reference signal auxiliary information is sent to the network node, and sends the second high frequency measurement reference signal auxiliary information to the neighbor node, so that the network node or the neighbor node carry out the measurement of high frequency reference signal；Receive the high frequency reference signal measurement result that the network node or the neighbor node are sent；The alternative access node of the network node is selected according to the high frequency reference signal measurement result；The high frequency return link between the alternative access node and the network node is established to the alternative access node request, so that the network node accesses high frequency network by the alternative access node.It may be implemented, so that new network node be made to access high frequency network by its neighbor node.

Description

Control node, network node and network access method

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a control node, a network node, and a method for accessing a network.

Background

The development of technology and society will bring about a proliferation of mobile and wireless traffic, and ten years later, mobile broadband traffic will reach more than thousand times today. The prior art is difficult to meet this demand by improving the spectral efficiency, and the use of a large bandwidth of a high frequency band is a necessary trend.

The high frequency signal has a shorter transmission distance because it has a higher propagation loss and a lower penetration ability than the low frequency signal. The future high-frequency network is an ultra-dense network and is characterized in that: the distance between the nodes is short and the density is large. Because of the large number of nodes, the high cost of fiber deployment limits the deployment of such dense networks if each node is routed back to the core network over wired fiber. Therefore, when the network is deployed, a preferable scheme may be to select several nodes in the plurality of nodes to access the core network through the wired optical fiber, and most other nodes are connected to the nodes of the several wired backhauls through the high-frequency wireless backhauls, so as to access the core network, so that the optical fiber deployment cost can be saved. However, no solution exists in the prior art how to establish a high frequency wireless backhaul link between nodes in a high frequency system.

In the prior art, there is a scheme for a new network node to access a network in a low frequency wireless communication system, and the main contents of the scheme are as follows: when a new cell RS (Relay Station) accesses a network, scanning lead codes of neighbor nodes, firstly selecting an access point RS1 to access the network according to a scanning result, feeding the scanning result back to a Multi-hop Relay Base Station MR-BS (Multi-hop Base Station) through an RS1, after the MR-BS receives an RS neighbor measurement report fed back by the RS, selecting a new access point RS2 for the RS according to a network state (such as congestion and load conditions) and the scanning result fed back by the RS, sending lead code information of the new access point RS2 to the RS, after receiving the information sent by the MR-BS, feeding a confirmation response back to the MR-BS by the RS, simultaneously detecting whether the received lead code information is the lead code of the current access point RS1, and if not, accessing the network through the new access point RS 2.

The above scheme in the prior art is still a scheme in a low frequency system, and an omnidirectional antenna is used for transceiving, and when a new network element is added, signals of all neighbor nodes can be scanned, so that the signals of the neighbor nodes are firstly scanned and then fed back to a control base station.

Disclosure of Invention

The embodiment of the invention provides a control node, a network node and a method for accessing a network, which can realize that a new network node can access a high-frequency network through a neighbor node of the new network node.

A first aspect of the present invention provides a control node, comprising:

the first receiving unit is used for receiving a network access request message sent by a network node which is to be accessed to a high-frequency network; the network access request message comprises attribute information of the network node;

a first determining unit, configured to determine at least one neighbor node of the network node according to attribute information of the network node;

a first sending unit, configured to send first high-frequency measurement reference signal auxiliary information to the network node, and send second high-frequency measurement reference signal auxiliary information to a neighboring node of the network node, so that the network node or the neighboring node performs measurement of a high-frequency reference signal;

a second receiving unit, configured to receive a high-frequency reference signal measurement result sent by the network node or the neighboring node;

a selecting unit, configured to select an alternative access node of the network node from the neighboring nodes according to the high-frequency reference signal measurement result;

a requesting unit, configured to request the candidate access node to establish a high-frequency backhaul link between the candidate access node and the network node, so that the network node accesses a high-frequency network through the candidate access node.

In a first possible implementation manner of the first aspect, the control node further includes:

the first synchronization unit is used for completing synchronization with the network node through a low-frequency network;

and the second sending unit is used for sending a network access agreement confirmation message to the network node.

In a second possible implementation manner of the first aspect, the control node further includes:

a second determining unit, configured to determine a generation time, a generation period, and a generation manner of a high-frequency transmission beam of the network node, and determine a generation time, a generation period, and a generation manner of a high-frequency reception beam of the neighbor node;

the first high frequency measurement reference signal side information includes: attribute information of the neighbor node, generation time, generation period and generation mode of a high-frequency transmission beam of the network node;

the second high frequency measurement reference signal side information includes: attribute information of the network node, generation time, generation period and generation mode of the high-frequency receiving wave beam of the neighbor node.

In a third possible implementation manner of the first aspect, the control node further includes:

a third determining unit, configured to determine a generation time, a generation period, and a generation manner of a high-frequency reception beam of the network node, and determine a generation time, a generation period, and a generation manner of a high-frequency transmission beam of the at least one neighbor node;

the first high frequency measurement reference signal side information includes: attribute information of the neighbor node, generation time, generation period and generation mode of a high-frequency receiving wave beam of the network node;

the second high frequency measurement reference signal side information includes: attribute information of the network node, generation time, generation period and generation mode of the high-frequency transmission beam of the neighbor node.

With reference to the first aspect or any one of the possible implementation manners of the first aspect, in a fourth possible implementation manner of the first aspect, the requesting unit includes:

a first sending subunit, configured to send, to the alternative access node, a request for establishing a high-frequency backhaul link between the alternative access node and the network node;

a first receiving subunit, configured to receive first acknowledgement information sent by the alternative access node; the first acknowledgement information indicates that the alternative access node agrees to establish the high-frequency backhaul link;

a second sending subunit, configured to send second acknowledgement information to the network node, so that the network node establishes the high-frequency backhaul link; the second acknowledgement information indicates that the alternative access node agrees to establish the high frequency backhaul link.

A second aspect of the present invention provides a network node, comprising:

a third sending unit, configured to send a network access request message requesting access to the high-frequency network to the control node; the network access request message comprises attribute information of the network node;

a third receiving unit, configured to receive first high-frequency sounding reference signal auxiliary information sent by the control node;

the first measurement unit is used for sending or receiving a high-frequency measurement reference signal according to the first high-frequency measurement reference signal auxiliary information, and measuring the high-frequency reference signal with a neighbor node so as to enable the control node to obtain a measurement result of the high-frequency reference signal;

a first establishing unit, configured to establish a high-frequency backhaul link with an alternative access node according to the instruction of the control node, so as to access a high-frequency network through the alternative node; the alternative access node is a node selected by the control node from the neighbor nodes according to the measurement result of the high-frequency reference signal.

In a first possible implementation manner of the second aspect, the network node further includes:

the second synchronization unit is used for completing synchronization with the control node through a low-frequency network;

and the fourth receiving unit is used for receiving the network access agreement confirmation message sent by the control node.

In a second possible implementation manner of the second aspect, the first high frequency measurement reference signal side information includes: attribute information of the neighbor node, generation time, generation period and generation mode of a high-frequency transmission beam of the network node;

the first measurement unit includes:

a first angle determining subunit, configured to determine a generation angle of the high-frequency transmission beam according to the attribute information of the neighbor node;

a first beam generating subunit, configured to generate a high-frequency transmission beam at the generating angle according to a generating time, a generating period, and a generating manner of the high-frequency transmission beam;

a third transmitting subunit, configured to transmit a high-frequency reference signal to the neighboring node on the high-frequency transmission beam, so that the neighboring node performs measurement using the high-frequency reference signal and transmits the high-frequency reference signal measurement result to the control node.

In a third possible implementation manner of the second aspect, the first high frequency measurement reference signal side information includes: attribute information of the neighbor node, generation time, generation period and generation mode of a high-frequency transmission beam of the network node;

the first measurement unit includes:

the first direction determining subunit is used for determining the beam direction of the high-frequency transmission beam according to the attribute information of the neighbor node;

the second beam generating subunit is used for generating the high-frequency transmission beam in a round-robin manner on all possible beam angles included in the beam direction according to the generation time, the generation period and the generation mode of the high-frequency transmission beam;

a fourth transmitting subunit, configured to transmit a high-frequency reference signal to the neighboring node on the high-frequency transmission beam so that the neighboring node performs measurement using the high-frequency reference signal and transmits the high-frequency reference signal measurement result to the control node.

In a fourth possible implementation manner of the second aspect, the first high frequency measurement reference signal side information includes: attribute information of the neighbor node, generation time, generation period and generation mode of a high-frequency receiving wave beam of the network node;

the first measurement unit includes:

a second angle determining subunit, configured to determine a generation angle of the high-frequency receive beam according to the attribute information of the neighboring node;

a third beam generation subunit configured to generate a high-frequency reception beam at the generation angle in accordance with a generation time, a generation period, and a generation manner of the high-frequency reception beam;

a second receiving subunit, configured to receive, on the high-frequency receiving beam, a high-frequency reference signal sent by the neighboring node;

a first measurement subunit, configured to perform measurement by using the high-frequency reference signal, and obtain a high-frequency reference signal measurement result;

a fifth transmitting subunit, configured to transmit the high-frequency reference signal measurement result to the control node.

In a fifth possible implementation manner of the second aspect, the first high frequency measurement reference signal side information includes: attribute information of the neighbor node, generation time, generation period and generation mode of a high-frequency receiving wave beam of the network node;

the first measurement unit includes:

a second direction determining subunit, configured to determine a beam direction of the high-frequency receive beam according to the attribute information of the neighbor node;

a fourth beam generating subunit, configured to generate high-frequency receive beams in round trips at all possible beam angles included in the beam azimuth according to the generation time, the generation period, and the generation manner of the high-frequency receive beams;

a third receiving subunit, configured to receive, on the high-frequency receiving beam, a high-frequency reference signal sent by the neighboring node;

a second measurement subunit, configured to perform measurement by using the high-frequency reference signal, and obtain a high-frequency reference signal measurement result;

a sixth transmitting subunit, configured to transmit the high-frequency reference signal measurement result to the control node.

With reference to the second aspect or any one of the possible implementation manners of the second aspect, in a sixth possible implementation manner of the second aspect, the first establishing unit includes:

the first receiving subunit is configured to receive second acknowledgement information sent by the control node; the second acknowledgement information indicates that the alternative access node agrees to establish a high-frequency backhaul link between the alternative access node and the network node;

a first establishing subunit, configured to establish a high-frequency backhaul link with the alternative access node, so as to access a high-frequency network through the alternative node.

A third aspect of the present invention provides a network node, comprising:

a fifth receiving unit, configured to receive second high-frequency sounding reference signal auxiliary information sent by the control node;

the second measurement unit is used for sending or receiving a high-frequency measurement reference signal according to the second high-frequency measurement reference signal auxiliary information, and measuring the high-frequency reference signal between the second measurement unit and a new network node to be added into the network so that the control node can obtain the measurement result of the high-frequency reference signal;

and the second establishing unit is used for establishing a high-frequency return link with the new network node according to the instruction of the control node so as to enable the new network node to access the high-frequency network.

In a first possible implementation manner of the third aspect, the second high frequency measurement reference signal side information includes: attribute information of the new network node, generation time, generation period and generation mode of a high-frequency receiving wave beam of the network node;

the second measurement unit includes:

a third angle determining subunit, configured to determine a generation angle of the high-frequency receive beam according to the attribute information of the new network node;

a fifth beam generating subunit, configured to generate a high-frequency receive beam at the generation angle according to the generation time, the generation period, and the generation manner of the high-frequency receive beam;

a fifth receiving subunit, configured to receive, on the high-frequency receiving beam, a high-frequency reference signal sent by the new network node;

a third measurement subunit, configured to perform measurement by using the high-frequency reference signal, and obtain a high-frequency reference signal measurement result;

a seventh transmitting subunit, configured to transmit the high-frequency reference signal measurement result to the control node.

In a second possible implementation manner of the third aspect, the second high frequency measurement reference signal side information includes: attribute information of the new network node, generation time, generation period and generation mode of a high-frequency receiving wave beam of the network node;

the second measurement unit includes:

a third direction determining subunit, configured to determine a beam direction of the high-frequency receive beam according to the attribute information of the new network node;

a sixth beam generating subunit, configured to generate high-frequency receive beams in round-robin manner over all possible beam angles included in the beam azimuth according to the generation time, the generation period, and the generation manner of the high-frequency receive beams;

a sixth receiving subunit, configured to receive, on the high-frequency receive beam, a high-frequency reference signal sent by the network node;

a fourth measurement subunit, configured to perform measurement by using the high-frequency reference signal, and obtain a high-frequency reference signal measurement result;

an eighth transmitting subunit, configured to transmit the high-frequency reference signal measurement result to the control node.

In a third possible implementation manner of the third aspect, the second high frequency measurement reference signal side information includes: attribute information of the new network node, generation time, generation period and generation mode of a high-frequency transmission beam of the network node;

the second measurement unit includes:

a fourth angle determining subunit, configured to determine a generation angle of the high-frequency transmission beam according to the attribute information of the new network node;

a seventh beam generating subunit, configured to generate a high-frequency transmission beam at the generating angle according to the generating time, the generating period, and the generating manner of the high-frequency transmission beam;

a ninth transmitting subunit, configured to transmit a high-frequency reference signal to the new network node on the high-frequency transmission beam, so that the new network node performs measurement using the high-frequency reference signal and transmits a high-frequency reference signal measurement result to the control node.

In a fourth possible implementation manner of the third aspect, the second high frequency measurement reference signal side information includes: attribute information of the new network node, generation time, generation period and generation mode of a high-frequency transmission beam of the network node;

the second measurement unit includes:

a fourth orientation determining subunit configured to determine a beam orientation of the high-frequency transmission beam according to the attribute information of the new network node;

an eighth beam generating subunit, configured to generate high-frequency transmission beams in round-robin manner over all possible beam angles included in the beam azimuth according to the generation time, the generation period, and the generation manner of the high-frequency transmission beams;

a tenth transmitting subunit, configured to transmit a high-frequency reference signal to the new network node on the high-frequency transmission beam, so that the new network node performs measurement using the high-frequency reference signal and transmits a high-frequency reference signal measurement result to the control node.

With reference to the third aspect or any one of possible implementation manners of the third aspect, in a fifth possible implementation manner of the third aspect, the second establishing unit includes:

a seventh receiving subunit, configured to receive a high-frequency backhaul link establishment request sent by the control node; the high frequency backhaul link establishment request is for requesting establishment of a high frequency backhaul link between the network node and the new network node;

an eleventh transmitting subunit, configured to transmit the first acknowledgement information to the control node; the first acknowledgement information indicates agreement to establish a high frequency backhaul link with the new network node;

a second establishing subunit, configured to establish a high-frequency backhaul link with the new network node, so that the new network node accesses the high-frequency network.

A fourth aspect of the present invention provides a method for accessing a network, the method comprising:

receiving a network access request message sent by the network node to be accessed to the high-frequency network; the network access request message comprises attribute information of the network node;

determining at least one neighbor node of the network node according to the attribute information of the network node;

sending first high-frequency measurement reference signal auxiliary information to the network node and sending second high-frequency measurement reference signal auxiliary information to a neighbor node of the network node so that the network node or the neighbor node can measure a high-frequency reference signal;

receiving a high-frequency reference signal measurement result sent by the network node or the neighbor node;

selecting an alternative access node of the network node from the neighbor nodes according to the high-frequency reference signal measurement result;

requesting the alternative access node to establish a high-frequency backhaul link between the alternative access node and the network node, so that the network node accesses a high-frequency network through the alternative access node.

In a first possible implementation manner of the fourth aspect, before the receiving the network access request message sent by the network node intending to access the high frequency network, the method further includes:

the synchronization with the network node is completed through a low-frequency network;

after the receiving the network access request message sent by the network node intending to access the high-frequency network, the method further includes:

and sending a network access agreement confirmation message to the network node.

In a second possible implementation of the fourth aspect, before the sending of the first high frequency measurement reference signal assistance information to the network node and the sending of the second high frequency measurement reference signal assistance information to the neighbor nodes of the network node, the method further comprises:

determining the generation time, the generation period and the generation mode of a high-frequency transmission beam of the network node, and determining the generation time, the generation period and the generation mode of a high-frequency receiving beam of the neighbor node;

In a third possible implementation of the fourth aspect, before the sending of the first high frequency measurement reference signal assistance information to the network node and the sending of the second high frequency measurement reference signal assistance information to the neighbor nodes of the network node, the method further comprises:

determining the generation time, the generation period and the generation mode of a high-frequency receiving wave beam of the network node, and determining the generation time, the generation period and the generation mode of a high-frequency transmission wave beam of the neighbor node;

the first high frequency measurement reference signal side information includes: attribute information of the neighbor node, generation time, generation period and generation mode of a high-frequency receiving wave beam of the network node; the second high frequency measurement reference signal side information includes: attribute information of the network node, generation time, generation period and generation mode of the high-frequency transmission beam of the neighbor node.

With reference to the fourth aspect or any one of the possible implementations of the fourth aspect, in a fourth possible implementation of the fourth aspect, the requesting, from the alternative access node, establishment of a high-frequency backhaul link between the alternative access node and the network node includes:

sending a request for establishing a high-frequency backhaul link between the alternative access node and the network node to the alternative access node;

receiving first confirmation information sent by the alternative access node; the first acknowledgement information indicates that the alternative access node agrees to establish the high-frequency backhaul link;

sending second acknowledgement information to the network node to cause the network node to establish the high frequency backhaul link; the second acknowledgement information indicates that the alternative access node agrees to establish the high frequency backhaul link.

A fifth aspect of the present invention provides a method for accessing a network, the method comprising:

sending a network access request message for requesting to access a high-frequency network to a control node; the network access request message comprises attribute information of the network node;

receiving first high-frequency measurement reference signal auxiliary information sent by the control node;

sending or receiving a high-frequency measurement reference signal according to the first high-frequency measurement reference signal auxiliary information, and measuring the high-frequency measurement reference signal with a neighbor node so that the control node obtains a measurement result of the high-frequency measurement reference signal;

according to the indication of the control node, establishing a high-frequency return link with an alternative access node so as to access a high-frequency network through the alternative node; and the alternative access node is a node selected by the control node from the neighbor nodes according to the measurement result of the high-frequency reference signal.

In a first possible implementation manner of the fifth aspect, before the sending, to the control node, the network entry request message requesting access to the high frequency network, the method further includes:

the synchronization with the control node is completed through a low-frequency network;

after the sending of the network access request message requesting access to the high frequency network to the control node, the method further comprises:

and receiving a network access agreement confirmation message sent by the control node.

In a second possible implementation manner of the fifth aspect, the first high frequency measurement reference signal side information includes: attribute information of the neighbor node, generation time, generation period and generation mode of a high-frequency transmission wave beam of the node;

the sending or receiving a high-frequency measurement reference signal according to the first high-frequency measurement reference signal auxiliary information, and performing measurement on the high-frequency measurement reference signal with a neighbor node, so that the control node obtains a measurement result of the high-frequency measurement reference signal includes:

determining the generation angle of the high-frequency transmission wave beam according to the attribute information of the neighbor node;

generating a high-frequency transmission beam on the generating angle according to the generating time, the generating period and the generating mode of the high-frequency transmission beam;

transmitting a high frequency reference signal to the neighbor node on the high frequency transmission beam to cause the neighbor node to perform measurement using the high frequency reference signal and transmit the high frequency reference signal measurement result to the control node.

In a third possible implementation manner of the fifth aspect, the first high frequency measurement reference signal side information includes: attribute information of the neighbor node, generation time, generation period and generation mode of a high-frequency transmission wave beam of the node;

determining the beam direction of the high-frequency transmission beam according to the attribute information of the neighbor node;

generating high-frequency transmission beams in a round-robin manner at all possible beam angles included in the beam directions according to the generation time, the generation period and the generation mode of the high-frequency transmission beams;

In a fourth possible implementation manner of the fifth aspect, the first high frequency measurement reference signal side information includes: attribute information of the neighbor node, generation time, generation period and generation mode of a high-frequency receiving wave beam of the node;

determining the generation angle of the high-frequency receiving wave beam according to the attribute information of the neighbor node;

generating a high-frequency receiving beam on the generating angle according to the generating time, the generating period and the generating mode of the high-frequency receiving beam;

receiving a high-frequency reference signal sent by the neighbor node on the high-frequency receiving beam;

performing measurement by using the high-frequency reference signal to obtain a high-frequency reference signal measurement result;

sending the high frequency reference signal measurement to the control node.

In a fifth possible implementation manner of the fifth aspect, the first high frequency measurement reference signal side information includes: attribute information of the neighbor node, generation time, generation period and generation mode of a high-frequency receiving wave beam of the node;

determining the beam direction of the high-frequency receiving beam according to the attribute information of the neighbor node;

generating high-frequency receiving beams in turn on all possible beam angles included in the beam directions according to the generation time, the generation period and the generation mode of the high-frequency receiving beams;

sending the high frequency reference signal measurement to the control node.

With reference to the fifth aspect or any one of the possible implementation manners of the fifth aspect, in a sixth possible implementation manner of the fifth aspect, the establishing a high-frequency backhaul link with an alternative access node according to the instruction of the control node to access a high-frequency network through the alternative node includes:

receiving second confirmation information sent by the control node; the second acknowledgement information indicates that the alternative access node agrees to establish a high-frequency backhaul link between the alternative access node and the network node;

and establishing a high-frequency backhaul link with the alternative access node to access a high-frequency network through the alternative node.

A sixth aspect of the present invention provides a method for accessing a network, the method comprising:

receiving second high-frequency measurement reference signal auxiliary information sent by a control node;

sending or receiving a high-frequency measurement reference signal according to the second high-frequency measurement reference signal auxiliary information, and measuring the high-frequency reference signal between the control node and a new network node to be added into the network so as to enable the control node to obtain a measurement result of the high-frequency reference signal;

and establishing a high-frequency backhaul link with the new network node according to the indication of the control node, so that the new network node is accessed into a high-frequency network.

In a first possible implementation manner of the sixth aspect, the second high frequency measurement reference signal side information includes: attribute information of the network node, generation time, generation period and generation mode of a high-frequency receiving wave beam of the node;

the sending or receiving a high-frequency measurement reference signal according to the second high-frequency measurement reference signal auxiliary information, and measuring the high-frequency reference signal between the control node and a new network node to be added into the network, so that the control node obtains a measurement result of the high-frequency reference signal, including:

determining the generation angle of the high-frequency receiving wave beam according to the attribute information of the new network node;

receiving a high-frequency reference signal sent by the new network node on the high-frequency receiving beam;

sending the high frequency reference signal measurement to the control node.

In a second possible implementation manner of the sixth aspect, the second high frequency measurement reference signal side information includes: attribute information of the new network node, generation time, generation period and generation mode of a high-frequency receiving wave beam of the new network node;

receiving a high-frequency reference signal transmitted by the network node on the high-frequency receive beam;

sending the high frequency reference signal measurement to the control node.

In a third possible implementation manner of the sixth aspect, the second high frequency measurement reference signal side information includes: attribute information of the new network node, generation time, generation period and generation mode of a high-frequency transmission beam of the new network node;

determining a generation angle of the high-frequency transmission wave beam according to the attribute information of the new network node;

transmitting a high frequency reference signal to the new network node on the high frequency transmission beam, so that the new network node performs measurement using the high frequency reference signal and transmits a high frequency reference signal measurement result to the control node.

In a fourth possible implementation manner of the sixth aspect, the second high frequency measurement reference signal side information includes: attribute information of the new network node, generation time, generation period and generation mode of a high-frequency transmission beam of the new network node;

determining a beam position of the high-frequency transmission beam according to the attribute information of the new network node;

With reference to the sixth aspect or any one of the possible implementation manners of the sixth aspect, in a fifth possible implementation manner of the sixth aspect, the establishing a high-frequency backhaul link with the new network node according to the instruction of the control node, so that the new network node accesses a high-frequency network includes:

receiving a high-frequency return link establishment request sent by the control node; the high-frequency return link establishing request is used for requesting to establish a high-frequency return link between the node and the new network node;

sending first confirmation information to the control node; the first acknowledgement information indicates agreement to establish a high frequency backhaul link with the new network node;

establishing a high frequency backhaul link with the new network node to enable the new network node to access a high frequency network.

A seventh aspect of the present invention provides a computer storage medium, which may store a program that, when executed, includes the steps of the fourth aspect or any one of the possible implementations of the fourth aspect.

An eighth aspect of the present invention provides a computer storage medium, which may store a program that, when executed, includes the steps of any one of the possible implementations of the fifth aspect or the fifth aspect.

A ninth aspect of the present invention provides a computer storage medium, which may store a program that, when executed, includes the steps of the sixth aspect or any one of the possible implementations of the sixth aspect.

A tenth aspect of the present invention provides a control node, comprising a first memory and a first processor connected to a bus;

the first memory is used for storing execution instructions;

the first processor is used for communicating with the first memory, and the execution of the execution instruction causes the control node to execute the following method:

An eleventh aspect of the invention provides a network node comprising a second memory and a second processor connected to a bus;

the second memory is used for storing execution instructions;

the second processor, configured to communicate with the second memory, and execute the execution instructions to cause the network node to perform the following method:

A twelfth aspect of the invention provides a network node comprising a third memory and a third processor connected to a bus;

the third memory is used for storing execution instructions;

the third processor, configured to communicate with the third memory, and execute the execution instructions to cause the network node to perform the method of:

According to the scheme, the new network node firstly communicates with the control node through the low-frequency network to determine the neighbor node, beam alignment and channel measurement between the new network node and the neighbor node are achieved, the control node screens the alternative access node for the new network node according to the measurement result, and the new network node establishes the high-frequency return link with the alternative access node to access the high-frequency network.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic architecture diagram of a system for accessing a network according to an embodiment of the present invention;

fig. 2 is a first schematic diagram of a structure of a control node according to an embodiment of the present invention;

fig. 3 is a second schematic diagram of a structure of a control node according to an embodiment of the present invention;

fig. 4 is a third schematic diagram of a structure of a control node according to an embodiment of the present invention;

fig. 5 is a fourth schematic diagram of a structure of a control node according to an embodiment of the present invention;

fig. 6 is a first schematic diagram of a structure of a network node 200 according to an embodiment of the present invention;

fig. 7 is a second schematic diagram of a structure of a network node 200 according to an embodiment of the present invention;

fig. 8 is a third schematic diagram of a structure of a network node 200 according to an embodiment of the present invention;

fig. 9 is a fourth schematic diagram illustrating a structure of a network node 200 according to an embodiment of the present invention;

fig. 10 is a fifth schematic diagram illustrating a structure of a network node 200 according to an embodiment of the present invention;

fig. 11 is a sixth schematic diagram of a structure of a network node 200 according to an embodiment of the present invention;

fig. 12 is a first schematic diagram of a structure of a network node 300 according to an embodiment of the present invention;

fig. 13 is a second schematic diagram of a structure of a network node 300 according to an embodiment of the present invention;

fig. 14 is a third schematic diagram of a structure of a network node 300 according to an embodiment of the present invention;

fig. 15 is a fourth schematic diagram illustrating a structure of a network node 300 according to an embodiment of the present invention;

fig. 16 is a fifth schematic diagram of a structure of a network node 300 according to an embodiment of the present invention;

fig. 17 is a flowchart illustrating a method for accessing a network according to an embodiment of the present invention;

fig. 18 is a flowchart illustrating another method for accessing a network according to an embodiment of the present invention;

fig. 19 is a schematic structural diagram of a control node according to an embodiment of the present invention;

fig. 20 is a schematic structural diagram of a network node according to an embodiment of the present invention;

fig. 21 is a schematic structural diagram of a network node according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Fig. 1 is a schematic architecture diagram of a system for accessing a network according to an embodiment of the present invention, where the system in fig. 1 includes: the control node 100, a plurality of network nodes 300 which have joined the high-frequency network, and a network node 200 which requests to join the high-frequency network (i.e. a new network node), wherein the control node 100 can be used as a central control node to control the joining and routing of each network node. In fig. 1, the solid lines between the network nodes represent the established high-frequency backhaul links, and the dotted lines may represent the request for new high-frequency backhaul links.

The control node 100 may be, for example, a macro base station or other network node suitable as a control node.

As shown in fig. 2, the control node 100 may include:

a first receiving unit 101, configured to receive a network access request message sent by a network node 200 that wants to access a high-frequency network;

wherein, the network access request message includes attribute information of the network node 200;

for example, the attribute information of the network node 200 may include information such as location information and load information of the network node 200;

preferably, the attribute information of the network node 200 may further include information such as antenna position and antenna orientation;

a first determining unit 102, configured to determine at least one neighbor node of the network node 200 according to the attribute information of the network node 200;

for example, the first determining unit 102 may determine at least one neighboring node of the network node 200 according to the location of the network node 200, e.g., determine one or more nodes closest to the network node 200 as the neighboring node;

it should be noted that, in order for the network node 200 to access the high frequency network through the determined neighbor nodes, the neighbor nodes determined by the first determining unit 102 for the network node should be nodes that have already accessed the high frequency network;

a first sending unit 103, configured to send first high-frequency measurement reference signal assistance information to the network node 200, and to send second high-frequency measurement reference signal assistance information to a neighboring node of the network node 200, so that the network node 200 or its neighboring node performs measurement of a high-frequency reference signal;

a second receiving unit 104, configured to receive a high-frequency reference signal measurement result sent by the network node 200 or a neighboring node thereof;

a selecting unit 105, configured to select an alternative access node of the network node 200 from the neighbor nodes according to the high-frequency reference signal measurement result;

wherein, the alternative access nodes can be one or more;

a requesting unit 106, configured to request the candidate access node to establish a high-frequency backhaul link between the candidate access node and the network node 200, so that the network node 200 accesses the high-frequency network through the candidate access node.

Preferably, as shown in fig. 3, the control node 100 may further include:

a first synchronization unit 107 for performing synchronization with the network node 200 via the low frequency network.

Specifically, in the synchronization process, the Network node 200 may obtain a system message, where the system message may include a downlink system bandwidth, a MBSFN (Multicast Broadcast Single Frequency Network) subframe number, a PHICH (Physical Hybrid ARQ Indicator Channel) time domain length, and other contents, and related contents may refer to contents in the prior art and are not described herein again;

a second sending unit 108, configured to send a network admission agreement confirmation message to the network node 200.

The grant network access confirmation message may be used as a feedback to the network access request message sent by the network node 200, and the grant network access confirmation message may include: resource allocation information for uplink data transmission, an allocated temporary cell RNTI (radio Network temporary Identity), information for time synchronization, and the like.

For example, in one embodiment, in the measurement process of the high frequency reference signals of the new network node and the neighbor nodes, the new network node generates a high frequency transmission beam, the neighbor nodes generate high frequency receiving beams, and the new network node transmits the high frequency reference signals to the neighbor nodes, then:

as shown in fig. 4, the control node 100 may further include:

a second determining unit 109, configured to determine a generation time, a generation period, and a generation manner of the high-frequency transmission beam of the network node 200, and determine a generation time, a generation period, and a generation manner of the high-frequency reception beam of the neighboring node 300;

the control node 100 may determine the generation time, the generation period, and the generation manner of the high-frequency transmission beam, and the generation time, the generation period, and the generation manner of the high-frequency reception beam according to the scheduling requirement, and related contents belong to the prior art and are not described herein again.

Accordingly, the first high frequency sounding reference signal side information may include: attribute information of the neighbor node 300, generation time, generation cycle, and generation manner of the high frequency transmission beam of the network node.

Accordingly, the second high frequency sounding reference signal side information includes: attribute information of the network node 200, generation time, generation cycle, and generation manner of the high-frequency reception beam of the neighbor node 300.

For example, in another embodiment, in the measurement process of the high frequency reference signals of the new network node and the neighbor node, the new network node generates a high frequency receiving beam, the neighbor node generates a high frequency transmitting beam, and the neighbor node transmits the high frequency reference signal to the new network node, then:

as shown in fig. 5, the control node 100 may further include:

a third determining unit 110, configured to determine a generation time, a generation period, and a generation manner of a high-frequency receiving beam of the network node 200, and determine a generation time, a generation period, and a generation manner of a high-frequency transmitting beam of the neighboring node 300;

the control node 100 may determine the generation time, the generation period, and the generation manner of the high-frequency receiving beam, and the generation time, the generation period, and the generation manner of the high-frequency transmitting beam according to the scheduling requirement, and related contents belong to the prior art and are not described herein again.

Accordingly, the first high frequency sounding reference signal side information includes: attribute information of the neighbor node 300, generation time, generation cycle, and generation manner of the high-frequency reception beam of the network node 200;

the second high frequency sounding reference signal side information includes: attribute information of the network node 200, generation time, generation cycle, and generation manner of the high-frequency transmission beam of the neighbor node 300.

For example, the high frequency reference signal measurement may include any one or more of the following: signal-to-noise ratio, Signal-to-interference-and-noise ratio, or RSRP (Reference Signal Receiving Power).

For example, the selection unit 105 may select an alternative access node of the network node 200 from the at least one neighbor node according to any one or more of the following criteria:

1. the signal to noise ratio is higher than a predetermined first threshold;

2. the signal to noise ratio is higher than a predetermined second threshold;

3. the RSRP is greater than a predetermined third threshold.

It should be noted that specific values of the first threshold, the second threshold, and the third threshold may be set by those skilled in the art, and the specific values are not limited herein.

Preferably, the selecting unit may further select the candidate access node of the network node 200 according to the load status of the neighbor node, and the selecting principle is to preferably select the neighbor node with a small load as the candidate access node.

Of course, the selecting unit 105 may also select the candidate access node of the network node 200 according to other suitable criteria, for example, a weight value is assigned to each of the signal-to-noise ratio, the signal-to-interference-and-noise ratio, the RSRP, and the load, where a weight value with a high signal-to-interference-and-noise ratio is high, a weight value with a high RSRP is high, a weight value with a low load is high, a sum of the weight values of the signal-to-noise ratio, the signal-to-interference-and-noise ratio, the RSRP, and the load is calculated as a total weight value of the neighbor nodes, and then the.

For example, the request unit 106 may include:

a first sending subunit, configured to send, to the alternative access node, a request for establishing a high-frequency backhaul link between the alternative access node and the network node 200;

a first receiving subunit, configured to receive first acknowledgement information sent by the alternative access node; the first acknowledgement information indicates that the candidate access node agrees to establish the high frequency backhaul link;

a second sending subunit, configured to send a second acknowledgement message to the network node, so that the network node establishes the high-frequency backhaul link; the second acknowledgement information indicates that the candidate access node agrees to establish the high frequency backhaul link.

As shown in fig. 6, the network node 200 may include:

a third sending unit 201, configured to send a network access request message requesting to access the high-frequency network to the control node 100; the network access request message includes attribute information of the network node 200;

a third receiving unit 202, configured to receive the first high frequency sounding reference signal auxiliary information sent by the control node 100;

a first measurement unit 203, configured to transmit or receive a high-frequency sounding reference signal according to the first high-frequency sounding reference signal auxiliary information, and measure the high-frequency sounding reference signal with a neighboring node 300, so that the control node 100 obtains a measurement result of the high-frequency sounding reference signal;

a first establishing unit 204, configured to establish a high-frequency backhaul link with an alternative access node according to an instruction of the control node 100, so as to access a high-frequency network through the alternative access node; the candidate access node is a node selected by the control node 100 among the neighbor nodes 300 according to the measurement result of the high frequency reference signal.

Preferably, as shown in fig. 7, the network node 200 may further include:

a second synchronization unit 205, configured to complete synchronization with the control node 100 through a low frequency network;

a fourth receiving unit 206, configured to receive the network admission approval confirmation message sent by the control node 100.

For example, in an embodiment, in the measurement process of the high frequency reference signals of the new network node 200 and the neighbor node 300, the new network node 200 generates a high frequency transmission beam, the neighbor node 300 generates a high frequency reception beam, and the new network node 200 transmits the high frequency reference signal to the neighbor node 300, then:

the first high frequency sounding reference signal side information includes: attribute information of the neighbor node 300, generation time, generation cycle, and generation manner of the high-frequency transmission beam of the network node 200;

the generating method of the high-frequency transmission beam may include: one narrow beam at a time, or multiple narrow beams at a time.

If the control node 100 obtains the information of the network node 200 and the neighboring node 300, the antenna position and the antenna orientation, the attribute information of the neighboring node 300 included in the first high frequency measurement reference signal auxiliary information may include: information such as the position, antenna orientation, etc. of the neighbor node 300;

accordingly, as shown in fig. 8, the first measurement unit 203 includes:

a first angle determining subunit 203a, configured to determine a generating angle of the high-frequency transmission beam according to the attribute information of the neighboring node 300;

specifically, the first angle determining subunit 203a may determine the generating angle of the high-frequency transmission beam according to the position, the antenna orientation of the network node 200, and the positions, the antenna positions, and the antenna orientations of the neighboring nodes, and how to determine the generating angle, the related contents belong to the well-known technologies in the art, and are not described herein again;

a first beam generating subunit 203b, configured to generate a high-frequency transmission beam at the determined generating angle according to the generating time, generating cycle, and generating manner of the high-frequency transmission beam;

a third transmitting subunit 203c, configured to transmit a high-frequency reference signal to the neighboring node 300 on the high-frequency transmission beam, so that the neighboring node 300 performs measurement by using the high-frequency reference signal and transmits the high-frequency reference signal measurement result to the control node 100.

If the control node 100 only obtains the location information of the network node 200 and the neighboring node 300 thereof, and does not obtain the location, the orientation, and other information of the antenna, the attribute information of the neighboring node included in the first high frequency measurement reference signal auxiliary information may include: location information of the neighbor node 300;

accordingly, as shown in fig. 9, the first measurement unit 203 includes:

a first direction determining subunit 203d, configured to determine a beam direction of the high-frequency transmission beam according to the attribute information of the neighboring node 300;

since the attribute information of the neighboring node 300 does not include the position and orientation information of the antenna, the network node 200 can determine the beam orientation of the high-frequency transmission beam only according to the position of the node and the position of the neighboring node 300, and it is difficult to determine the generation angle of the high-frequency transmission beam;

a second beam generating subunit 203e, configured to generate high-frequency transmission beams in round trips at all possible beam angles included in the beam azimuth according to the generation time, the generation period, and the generation manner of the high-frequency transmission beams;

since the beam angle cannot be determined, the network node 200 generates high-frequency transmission beams in a round-robin manner over all possible beam angles included in the beam azimuth to align with the high-frequency reception beams generated by the neighboring nodes;

a fourth transmitting subunit 203f, configured to transmit a high-frequency reference signal to the neighboring node 300 on the high-frequency transmission beam so that the neighboring node 300 performs measurement using the high-frequency reference signal and transmits the high-frequency reference signal measurement result to the control node 100.

For example, in another embodiment, in the measurement process of the high frequency reference signals of the new network node 200 and the neighbor node 300, the new network node 200 generates a high frequency receiving beam, the neighbor node 300 generates a high frequency transmitting beam, and the neighbor node 300 transmits the high frequency reference signal to the new network node 200, then:

the first high frequency measurement reference signal side information includes: attribute information of the neighbor node 300, generation time, generation period, and generation manner of the high-frequency reception beam of the network node 200;

accordingly, as shown in fig. 10, the first measurement unit 203 may include:

a second angle determining subunit 203g, configured to determine a generating angle of the high-frequency receive beam according to the attribute information of the neighboring node 300;

specifically, the network node 200 may determine the generation angle of the high-frequency reception beam according to the position, the antenna orientation of the neighboring node 300, and the information such as the position, the antenna orientation, and the like of the node;

a third beam generation subunit 203h configured to generate a high-frequency reception beam at the determined generation angle according to the generation time, the generation cycle, and the generation method of the high-frequency reception beam;

a second receiving subunit 203i, configured to receive, on the high-frequency receiving beam, a high-frequency reference signal sent by the neighboring node 300;

a first measurement subunit 203j, configured to perform measurement by using the high-frequency reference signal, and obtain a high-frequency reference signal measurement result;

for example, the high frequency reference signal measurements may include: signal-to-noise ratio, signal-to-interference-and-noise ratio, reference signal received power and the like;

a fifth transmitting subunit 203k, configured to transmit the high frequency reference signal measurement result to the control node 100.

accordingly, as shown in fig. 11, the first measurement unit 203 includes:

a second direction determining subunit 2031, configured to determine a beam direction of the high-frequency receive beam according to the attribute information of the neighboring node 300;

a fourth beam generating subunit 203m, configured to generate high-frequency reception beams in round trips at all possible beam angles included in the beam azimuth according to the generation time, the generation period, and the generation manner of the high-frequency reception beams;

a third receiving subunit 203n, configured to receive, on the high-frequency receiving beam, a high-frequency reference signal sent by the neighboring node 300;

a second measurement subunit 203o, configured to perform measurement by using the high-frequency reference signal, and obtain a high-frequency reference signal measurement result;

a sixth transmitting subunit 203p, configured to transmit the high-frequency reference signal measurement result to the control node 100.

For example, the first establishing unit 204 may include:

a first receiving subunit, configured to receive second acknowledgement information sent by the control node 100; the second acknowledgement information indicates that the candidate access node agrees to establish a high-frequency backhaul link between the candidate access node and the network node 200;

and the first establishing subunit is configured to establish a high-frequency backhaul link with the candidate access node, so as to access a high-frequency network through the candidate access node.

As shown in fig. 12, the network node 300 (neighbor node) may include:

a fifth receiving unit 301, configured to receive the second high frequency sounding reference signal auxiliary information sent by the control node 100;

a second measurement unit 302, configured to send or receive a high frequency sounding reference signal according to the second high frequency sounding reference signal auxiliary information, and measure the high frequency sounding reference signal with a new network node 200 that is about to join the network, so that the control node 100 obtains a measurement result of the high frequency sounding reference signal;

a second establishing unit 303, configured to establish a high-frequency backhaul link with the new network node 200 according to an instruction of the control node 100, so that the new network node 200 accesses the high-frequency network.

the second high frequency sounding reference signal side information includes: attribute information of the new network node 200, generation time, generation cycle, and generation manner of the high-frequency reception beam of the network node 300;

if the controlling node 100 obtains the information of the positions of the new network node 200 and its neighboring nodes 300, the positions and the orientations of the antennas, and the like, the attribute information of the new network node 200 included in the second hf srs assistance information may include: information such as the position, antenna azimuth, etc. of the new network node 200;

accordingly, as shown in fig. 13, the second measurement unit 302 may include:

a third angle determining subunit 302a, configured to determine a generation angle of the high-frequency receive beam according to the attribute information of the new network node 200;

specifically, the generation angle of the high-frequency reception beam may be determined based on information such as the position, the antenna position, and the antenna azimuth of the new network node 200 and the own node;

a fifth beam generating subunit 302b, configured to generate a high-frequency receive beam at the determined generating angle according to the generating time, generating cycle, and generating manner of the high-frequency receive beam;

a fifth receiving subunit 302c, configured to receive, on the high-frequency receiving beam, the high-frequency reference signal sent by the new network node 200;

a third measurement subunit 302d, configured to perform measurement by using the high-frequency reference signal, and obtain a high-frequency reference signal measurement result;

a seventh transmitting subunit 302e, configured to transmit the high frequency reference signal measurement result to the control node 100.

If the controlling node 100 only obtains the location information of the new network node 200 and its neighboring node 300, and does not obtain the location and direction of the antenna, the attribute information of the new network node 200 included in the second hf srs assistance information may include: location information of the new network node 200;

accordingly, as shown in fig. 14, the second measurement unit 302 may include:

a third direction determining subunit 302f, configured to determine a beam direction of the high-frequency reception beam according to the attribute information of the new network node 200;

a sixth beam generating subunit 302g, configured to generate high-frequency receive beams in round trips at all possible beam angles included in the beam azimuth according to the generation time, the generation period, and the generation manner of the high-frequency receive beams;

a sixth receiving subunit 302h, configured to receive, on the high-frequency receiving beam, the high-frequency reference signal sent by the new network node 200;

a fourth measurement subunit 302i, configured to perform measurement by using the high-frequency reference signal, and obtain a high-frequency reference signal measurement result;

an eighth transmitting subunit 302j, configured to transmit the high frequency reference signal measurement result to the control node 100.

the second high frequency measurement reference signal side information includes: attribute information of the new network node 200, generation time, generation cycle, and generation manner of the high-frequency transmission beam of the network node 300;

accordingly, as shown in fig. 15, the second measurement unit 302 may include:

a fourth angle determining subunit 302k, configured to determine a generation angle of the high-frequency transmission beam according to the attribute information of the new network node 200;

a seventh beam generating subunit 3021 configured to generate the rf transmission beam at the generating angle according to the generation time, the generation period, and the generation method of the rf transmission beam;

a ninth transmitting subunit 302m, configured to transmit a high-frequency reference signal to a new network node 200 on the high-frequency transmission beam, so that the new network node 200 performs measurement by using the high-frequency reference signal and transmits a high-frequency reference signal measurement result to the control node 100.

accordingly, as shown in fig. 16, the second measurement unit 302 includes:

a fourth orientation determining subunit 302n, configured to determine a beam orientation of the high-frequency transmission beam according to the attribute information of the new network node;

an eighth beam generating subunit 302o, configured to generate high-frequency transmission beams in round trips at all possible beam angles included in the beam azimuth according to the generation time, the generation period, and the generation manner of the high-frequency transmission beams;

a tenth transmitting subunit 302p, configured to transmit a high-frequency reference signal to the new network node 200 on the high-frequency transmission beam, so that the new network node 200 performs measurement using the high-frequency reference signal and transmits a high-frequency reference signal measurement result to the control node 100.

For example, the second establishing unit 303 may include:

a seventh receiving subunit, configured to receive a high-frequency backhaul link establishment request sent by the control node 100; the high frequency backhaul link establishment request is for requesting establishment of a high frequency backhaul link between the network node 300 and the new network node 200;

an eleventh transmitting subunit, configured to transmit the first acknowledgement information to the control node 100; the first acknowledgement information indicates agreement to establish a high frequency backhaul link with the new network node 200;

a second establishing subunit for establishing a high frequency backhaul link with the new network node 200 for the new network node 200 to access the high frequency network.

For example, in one embodiment, as shown in fig. 17, in the network architecture shown in fig. 1, a method for accessing a network by a new network node 200 to access a high frequency network may include:

401. the new network node 200 and the control node 100 complete synchronization in the low-frequency network;

402. the new network node 200 transmits a network entry request message to the control node 100; the network entry request message includes attribute information of the new network node 200, which may specifically include information such as a location and a load of the new network node 200;

it should be noted that, since the new network node 200 has not yet accessed the high-frequency network, some other messages such as a network access request message may be sent to the control node 100 through the low-frequency network;

403. the control node 100 transmits a network admission approval message to the new network node 200;

the grant network access confirmation message may serve as feedback for the network access request message sent by the new network node 200, and the content of the grant network access confirmation message may include resource allocation information for uplink data transmission, an allocated temporary cell RNTI, information for time synchronization, and the like;

404. the control node 100 determines at least one neighbor node 300 of the new network node 200 among the network nodes having accessed the high frequency network, according to the attribute information of the new network node 200;

405. the control node 100 determines the generation time, generation cycle, and generation manner of the high-frequency transmission beam of the new network node 200, and determines the generation time, generation cycle, and generation manner of the high-frequency reception beam of the neighbor node 300;

406. the control node transmits first high frequency measurement reference signal assistance information to the new network node 200 and transmits second high frequency measurement reference signal assistance information to the neighbor node 300 of the new network node 200;

the first high frequency measurement reference signal side information includes: attribute information of the neighbor node 300 and information of generation time, generation cycle, generation mode, and the like of the high-frequency transmission beam of the new network node 200;

the second high frequency measurement reference signal side information includes: attribute information of the new network node 200, and information such as generation time, generation cycle, generation mode, and the like of the high-frequency reception beam of the neighbor node 300;

407. the new network node 200 determines the beam angle or the beam azimuth of the high-frequency transmission beam according to the attribute information of the neighbor node 300;

if the attribute information of the neighbor node 300 further includes the antenna position and the antenna orientation, the new network node may determine a beam angle of the high-frequency transmission beam by combining the position, the antenna orientation of the new network node 200 and the position, the antenna position, and the antenna orientation of the neighbor node 300, and the beam angle of the high-frequency transmission beam and the beam angle of the high-frequency reception beam are corresponding, so that the high-frequency transmission beam and the high-frequency reception beam may be aligned to transmit information;

if the antenna position and the antenna azimuth are not included in the attribute information of the neighbor node 300, the new network node 200 may determine a beam azimuth of the high-frequency transmission beam, which causes the high-frequency transmission beam to strike the position of the neighbor node 300, only in conjunction with the position of the new network node 200 and the position of the neighbor node 300;

wherein, the beam orientation may refer to the angular range in the horizontal and vertical directions, such as horizontal: (-30 °, 30 °), vertical: -30 °, which defines the range of beam directions;

408. the neighbor node 300 determines the beam angle or the beam azimuth of the high-frequency receiving beam according to the attribute information of the new network node 200;

if the attribute information of the new network node 200 further includes the antenna position and the antenna orientation, the new network node may determine the beam angle of the high-frequency reception beam by combining the position, the antenna orientation of the new network node 200 and the position, the antenna position, and the antenna orientation of the neighbor node 300;

if the antenna position and the antenna azimuth are not included in the new network node 200 attribute information, the neighbor node 300 may determine a beam azimuth of the high-frequency reception beam, which causes the high-frequency reception beam to strike the position of the new network node 200, only in conjunction with the position of the new network node 200 and the position of the neighbor node 300;

409. the new network node 200 generates the high-frequency transmission beam at the determined beam angle of the high-frequency transmission beam according to the beam generation time, the generation period and the generation mode of the high-frequency transmission beam; or,

according to the beam generating time, the generating period and the generating mode of the high-frequency transmission beam, the high-frequency transmission beam is generated by round-going over all possible beam angles included in the determined beam azimuth of the high-frequency transmission beam;

410. the neighbor node 300 generates a high-frequency reception beam at the determined beam angle of the high-frequency reception beam according to the beam generation time, the generation period, and the generation manner of the high-frequency reception beam; or,

according to the beam generating time, the generating period and the generating mode of the high-frequency receiving beam, generating the high-frequency receiving beam by round walking on all possible beam angles included in the determined beam azimuth of the high-frequency receiving beam;

411. the new network node 200 transmits a high frequency reference signal to the neighbor node 300 on the high frequency transmission beam;

it should be noted that, if only the generating directions of the high-frequency transmission beam and the high-frequency reception beam can be determined, the high-frequency transmission beam and the high-frequency reception beam are generated by polling at all possible angles included in the generating directions until the high-frequency reception beam is aligned with the high-frequency transmission beam, the neighbor node 300 receives the reference signal sent by the new network node, and the generating angles of the high-frequency transmission beam and the high-frequency reception beam are also determined;

412. the neighbor node 300 receives the high-frequency reference signal sent by the new network node 200 on the high-frequency receiving beam, and performs measurement by using the high-frequency reference signal to obtain a high-frequency reference signal measurement result;

413. the neighbor node 300 transmits the high frequency reference signal measurement result to the control node 100;

414. the control node 100 receives the measurement result of the high-frequency reference signal sent by the neighbor node 300, and selects an alternative access node for the new network node 200 according to the measurement result of the high-frequency reference signal;

the alternative access nodes are one or more of the neighboring nodes 300, and the specific selection criteria may be any one or more of the following criteria:

1. the signal to noise ratio is higher than a predetermined first threshold;

2. the signal to noise ratio is higher than a predetermined second threshold;

3. RSRP is greater than a predetermined third threshold;

it should be noted that specific values of the first threshold, the second threshold, and the third threshold may be set by those skilled in the art, and the specific values are not limited herein;

preferably, the control node 100 may also select an alternative access node according to the load of the neighbor node, that is, preferentially select a neighbor node with a small load as an alternative access node;

415. the control node 100 sends a request to the alternative access node to establish a high frequency backhaul link between the alternative access node and the new network node 200;

416. the alternative access node sends first confirmation information to the control node 100, wherein the first confirmation information indicates that the alternative node agrees to establish the high-frequency backhaul link;

417. the control node 100 sends second acknowledgement information to the new network node 200, where the second acknowledgement information indicates that the alternative access node agrees to establish the high-frequency backhaul link;

418. the new network node 200 establishes a high frequency backhaul link with the alternative access node at the determined beam angle to access the high frequency network through the alternative access node.

In the embodiment shown in fig. 17, in the high frequency reference signal measurement process of the new network node 200 and the neighbor node 300, the new network node 200 generates a high frequency transmission beam, the neighbor node 300 thereof generates a high frequency reception beam, and the new network node 200 transmits a high frequency reference signal to the neighbor node 300 thereof.

Another embodiment is described below using fig. 18, in which, in the high frequency reference signal measurement process of the new network node 200 and the neighbor node 300, the new network node 200 generates a high frequency reception beam, the neighbor node 300 generates a high frequency transmission beam, and the neighbor node 300 transmits a high frequency reference signal to the new network node 200.

For example, in another embodiment, as shown in fig. 18, in the network architecture shown in fig. 18, a method for accessing a network by a new network node 200 to access a high frequency network may include:

501. the new network node 200 and the control node 100 complete synchronization in the low-frequency network;

502. the new network node 200 transmits a network entry request message to the control node 100; the network entry request message includes attribute information of the new network node 200, which may specifically include information such as a location and a load of the new network node 200;

503. the control node 100 transmits a network admission approval message to the new network node 200;

504. the control node 100 determines at least one neighbor node of the new network node 200 among the network nodes having accessed the high frequency network, according to the attribute information of the new network node 200;

505. the control node 100 determines the generation time, generation cycle, and generation manner of the high-frequency reception beam of the new network node 200, and determines the generation time, generation cycle, and generation manner of the high-frequency transmission beam of the neighbor node 300;

506. the control node 100 transmits first high frequency measurement reference signal assistance information to the new network node 200 and transmits second high frequency measurement reference signal assistance information to the neighbor node 300 of the new network node 200;

the first high frequency measurement reference signal side information includes: attribute information of the neighbor node 300 and information of generation time, generation cycle, generation mode, and the like of the high-frequency reception beam of the new network node 200;

the second high frequency measurement reference signal side information includes: attribute information of the new network node 200, and information such as generation time, generation cycle, generation mode, and the like of the high-frequency transmission beam of the neighbor node 300;

507. the new network node 200 determines the beam angle or the beam azimuth of the high-frequency receiving beam according to the attribute information of the neighbor node 300;

508. the neighbor node 300 determines the beam angle or the beam azimuth of the high-frequency transmission beam according to the attribute information of the new network node 200;

509. the new network node 200 generates a high-frequency reception beam at the beam angle of the high-frequency reception beam that has been determined, in accordance with the beam generation time, the generation period, and the generation manner of the high-frequency reception beam; or,

510. the neighbor node 300 generates a high-frequency transmission beam at the determined beam angle of the high-frequency transmission beam according to the beam generation time, the generation period and the generation mode of the high-frequency transmission beam; or,

511. the neighbor node 300 transmits a high frequency reference signal to the new network node 200 on the high frequency transmission beam;

it should be noted that, if only the generating directions of the high-frequency transmission beam and the high-frequency reception beam can be determined, the high-frequency transmission beam and the high-frequency reception beam are generated by polling at all possible angles included in the generating directions until the high-frequency reception beam is aligned with the high-frequency transmission beam, the new network node 200 receives the reference signal sent by the neighboring node 300, and the generating angles of the high-frequency transmission beam and the high-frequency reception beam are also determined;

512. the neighbor node 300 receives the high-frequency reference signal sent by the new network node 200 on the high-frequency receiving beam, and performs measurement by using the high-frequency reference signal to obtain a high-frequency reference signal measurement result;

513. the neighbor node 300 transmits the high frequency reference signal measurement result to the control node 100;

514. the control node 100 receives the measurement result of the high-frequency reference signal sent by the neighbor node 300, and selects an alternative access node for the new network node 200 according to the measurement result of the high-frequency reference signal;

the alternative access nodes may be one or more of the neighboring nodes 300, and the specific selection criteria may be any one or more of the following criteria:

1. the signal to noise ratio is higher than a predetermined first threshold;

2. the signal to noise ratio is higher than a predetermined second threshold;

3. RSRP is greater than a predetermined third threshold;

515. the control node 100 sends a request to the alternative access node to establish a high frequency backhaul link between the alternative access node and the new network node 200;

516. the alternative access node sends first confirmation information to the control node 100, wherein the first confirmation information indicates that the alternative node agrees to establish the high-frequency backhaul link;

517. the control node 100 sends second acknowledgement information to the new network node, where the second acknowledgement information indicates that the alternative access node agrees to establish the high-frequency backhaul link;

518. the new network node 200 establishes a high frequency backhaul link with the alternative access node at the determined beam angle to access the high frequency network through the alternative access node.

In the above solution, the new network node first performs communication with the control node through the low frequency network to determine the neighbor node, thereby implementing beam alignment and channel measurement between the new network node and the neighbor node, and the control node screens the alternative access node for the new network node according to the measurement result, so that the new network node establishes a high frequency backhaul link with the alternative access node to access the high frequency network.

An embodiment of the present invention further provides a computer storage medium, where the computer storage medium may store a program, and the program may include the following steps when executed:

As shown in fig. 19, an embodiment of the present invention further provides a control node 600, which includes a first memory 602 and a first processor 603 connected to a bus 601;

wherein, the first memory 602 is used for storing execution instructions;

specifically, the first memory 602 may store a first program 604, and the first program 604 may include a program code including an execution instruction;

for example, the first memory 602 may include a high-speed RAM memory, and may further include a non-volatile memory (non-volatile memory), such as at least one disk memory;

a first processor 603 configured to communicate with the first memory 602, execution of the execution instructions causing the control node 600 to perform the method of:

As shown in fig. 20, an embodiment of the present invention further provides a network node 700, where the network node 700 includes a second memory 702 and a second processor 703 connected to a bus 701;

a second memory 702 for storing execution instructions;

specifically, the second memory 702 may store a second program 704, and the second program 704 may include a program code including an execution instruction;

for example, the second memory 702 may comprise a high-speed RAM memory, and may further comprise a non-volatile memory (non-volatile memory), such as at least one disk memory;

a second processor 703, configured to communicate with the second memory 702, and to execute the execution instructions to cause the network node 700 to perform the following method:

As shown in fig. 21, an embodiment of the present invention further provides a network node 800, where the network node 800 includes a third memory 802 and a third processor 803 which are connected to the bus 801;

the third memory 802 is used for storing execution instructions;

specifically, the third memory 802 may store a third program 804, and the third program 804 may include a program code including an execution instruction;

for example, the third memory 602 may comprise a high-speed RAM memory, and may further comprise a non-volatile memory (non-volatile memory), such as at least one disk memory;

a third processor 803 for communicating with the third memory 802, execution of the instructions causing the network node 800 to perform the method of:

Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.

The foregoing detailed description is directed to a control node, a network node, and a method for accessing a network according to embodiments of the present invention, and specific examples are applied herein to illustrate principles and embodiments of the present invention, and the description of the foregoing embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims

1. A control node, comprising:

2. The control node according to claim 1, characterized in that the control node further comprises:

3. The control node according to claim 1, characterized in that the control node further comprises:

4. The control node according to claim 1, characterized in that the control node further comprises:

5. The control node according to any of claims 1-4, wherein the requesting unit comprises:

6. A network node, characterized in that the network node comprises:

a first establishing unit, configured to establish a high-frequency backhaul link with an alternative access node according to the instruction of the control node, so as to access a high-frequency network through the alternative access node; the alternative access node is a node selected by the control node from the neighbor nodes according to the measurement result of the high-frequency reference signal.

7. The network node of claim 6, wherein the network node further comprises:

8. The network node of claim 6, wherein the first high frequency measurement reference signal assistance information comprises: attribute information of the neighbor node, generation time, generation period and generation mode of a high-frequency transmission beam of the network node;

the first measurement unit includes:

9. The network node of claim 6, wherein the first high frequency measurement reference signal assistance information comprises: attribute information of the neighbor node, generation time, generation period and generation mode of a high-frequency transmission beam of the network node;

the first measurement unit includes:

10. The network node of claim 6, wherein the first high frequency measurement reference signal assistance information comprises: attribute information of the neighbor node, generation time, generation period and generation mode of a high-frequency receiving wave beam of the network node;

the first measurement unit includes:

11. The network node of claim 6, wherein the first high frequency measurement reference signal assistance information comprises: attribute information of the neighbor node, generation time, generation period and generation mode of a high-frequency receiving wave beam of the network node;

the first measurement unit includes:

12. The network node according to any of claims 6-11, wherein the first establishing unit comprises:

a first establishing subunit, configured to establish a high-frequency backhaul link with the alternative access node, so as to access a high-frequency network through the alternative access node.

13. A network node, characterized in that the network node comprises:

14. The network node of claim 13, wherein the second high frequency measurement reference signal assistance information comprises: attribute information of the new network node, generation time, generation period and generation mode of a high-frequency receiving wave beam of the network node;

the second measurement unit includes:

15. The network node of claim 13, wherein the second high frequency measurement reference signal assistance information comprises: attribute information of the new network node, generation time, generation period and generation mode of a high-frequency receiving wave beam of the network node;

the second measurement unit includes:

16. The network node of claim 13, wherein the second high frequency measurement reference signal assistance information comprises: attribute information of the new network node, generation time, generation period and generation mode of a high-frequency transmission beam of the network node;

the second measurement unit includes:

17. The network node of claim 13, wherein the second high frequency measurement reference signal assistance information comprises: attribute information of the new network node, generation time, generation period and generation mode of a high-frequency transmission beam of the network node;

the second measurement unit includes:

18. The network node according to any of claims 13-17, wherein the second establishing unit comprises:

19. A method for accessing a network, comprising:

receiving a network access request message sent by a network node to be accessed into a high-frequency network; the network access request message comprises attribute information of the network node;

20. The method according to claim 19, wherein before the receiving the network access request message sent by the network node intending to access the high frequency network, the method further comprises:

21. The method according to claim 19, wherein before the sending of first high frequency measurement reference signal assistance information to the network node and second high frequency measurement reference signal assistance information to a neighbor node of the network node, the method further comprises:

22. The method according to claim 19, wherein before the sending of first high frequency measurement reference signal assistance information to the network node and second high frequency measurement reference signal assistance information to a neighbor node of the network node, the method further comprises:

23. The method according to any of claims 19-22, wherein said requesting the alternative access node to establish a high frequency backhaul link between the alternative access node and the network node comprises:

24. A method for accessing a network, the method comprising:

according to the indication of the control node, establishing a high-frequency return link with the alternative access node so as to access a high-frequency network through the alternative access node; and the alternative access node is a node selected by the control node from the neighbor nodes according to the measurement result of the high-frequency reference signal.

25. The method of claim 24, wherein prior to sending the network entry request message to the control node requesting access to the high frequency network, the method further comprises:

26. The method of claim 24, wherein the first high frequency sounding reference signal side information comprises: attribute information of the neighbor node, generation time, generation period and generation mode of a high-frequency transmission wave beam of the node;

27. The method of claim 24, wherein the first high frequency sounding reference signal side information comprises: attribute information of the neighbor node, generation time, generation period and generation mode of a high-frequency transmission wave beam of the node;

28. The method of claim 24, wherein the first high frequency sounding reference signal side information comprises: attribute information of the neighbor node, generation time, generation period and generation mode of a high-frequency receiving wave beam of the node;

sending the high frequency reference signal measurement to the control node.

29. The method of claim 24, wherein the first high frequency sounding reference signal side information comprises: attribute information of the neighbor node, generation time, generation period and generation mode of a high-frequency receiving wave beam of the node;

sending the high frequency reference signal measurement to the control node.

30. The method according to any of claims 24-29, wherein said establishing a high frequency backhaul link with an alternative access node for accessing a high frequency network via said alternative access node according to the indication of said control node comprises:

and establishing a high-frequency backhaul link with the alternative access node to access a high-frequency network through the alternative access node.

31. A method for accessing a network, the method comprising:

32. The method of claim 31, wherein the second high frequency sounding reference signal side information comprises: attribute information of the new network node, generation time, generation period and generation mode of a high-frequency receiving wave beam of the new network node;

sending the high frequency reference signal measurement to the control node.

33. The method of claim 31, wherein the second high frequency sounding reference signal side information comprises: attribute information of the new network node, generation time, generation period and generation mode of a high-frequency receiving wave beam of the new network node;

determining a beam position of the high-frequency receiving beam according to the attribute information of the new network node;

sending the high frequency reference signal measurement to the control node.

34. The method of claim 31, wherein the second high frequency sounding reference signal side information comprises: attribute information of the new network node, generation time, generation period and generation mode of a high-frequency transmission beam of the new network node;

35. The method of claim 31, wherein the second high frequency sounding reference signal side information comprises: attribute information of the new network node, generation time, generation period and generation mode of a high-frequency transmission beam of the new network node;

36. The method according to any of the claims 31-35, wherein said establishing a high frequency backhaul link with the new network node according to the indication of the control node to enable the new network node to access a high frequency network comprises:

37. A computer storage medium, characterized in that the computer storage medium can store a program which, when executed, comprises the steps of any of claims 19-23.

38. A computer storage medium, characterized in that the computer storage medium can store a program which, when executed, comprises the steps of any of claims 24-30.

39. A computer storage medium, characterized in that the computer storage medium can store a program which, when executed, comprises the steps of any of claims 31-36.

40. A control node comprising a first memory and a first processor coupled to a bus;

the first memory is used for storing execution instructions;

41. A network node comprising a second memory and a second processor connected to a bus;

the second memory is used for storing execution instructions;

42. A network node comprising a third memory and a third processor connected to a bus;

the third memory is used for storing execution instructions;