WO2016197761A1

WO2016197761A1 - Beam recognition method and system and network node

Info

Publication number: WO2016197761A1
Application number: PCT/CN2016/081161
Authority: WO
Inventors: 刘星; 毕峰; 刘文豪; 苗婷; 郁光辉
Original assignee: 中兴通讯股份有限公司
Priority date: 2015-06-08
Filing date: 2016-05-05
Publication date: 2016-12-15
Also published as: CN106304120A

Abstract

A beam recognition method and system and a network node. The method comprises: a first network node sends, to a second network node, one or a group of beam recognition auxiliary information items; and the beam recognition auxiliary information items correspond to one or a group of high-frequency sites and is used to indicate, to the second network node, beam information required for accessing a high-frequency site.

Description

Beam identification method, system and network node

Technical field

This document relates to, but is not limited to, the field of communications, and in particular to a beam identification method, system and network node.

Background technique

With the continuous development of radio technology, a variety of radio services have emerged in large numbers, and the spectrum resources supported by radio services are limited. In the face of increasing demand for bandwidth, traditional commercial communications mainly use 300MHz to 3GHz. The spectrum resources between them show extremely tight conditions and are no longer able to meet the needs of future wireless communications.

In the future wireless communication, communication will be carried out using a carrier frequency higher than that of the 4G (fourth generation) communication system, such as 28 GHz, 45 GHz, etc., which has a large free propagation loss. It is easily absorbed by oxygen and is greatly affected by rain attenuation, which seriously affects the coverage performance of high-frequency communication systems. However, since the carrier frequency corresponding to the high-frequency communication has a shorter wavelength, it is possible to ensure that more antenna elements can be accommodated per unit area, and more antenna elements mean that beamforming can be used to improve the antenna gain. Thereby ensuring the coverage performance of high frequency communication.

After the beamforming method, the transmitting end can concentrate the transmitting energy in a certain direction, and the energy is small or absent in other directions, that is, each beam has its own directivity, and each beam can only cover To a terminal in a certain direction, the transmitting end, that is, the base station needs to transmit multiple beams to complete the full coverage. If a better beamforming weight is to be obtained, then for the base station, the terminal needs to measure and feed back the downlink channel state information or weight; for the terminal, the base station needs to measure and feed back the uplink channel state information or right. The value is used to ensure that the base station can transmit the downlink service by using the optimal beam, and the terminal can also use the optimal beam to send the uplink service.

However, on the one hand, the beam transmission capability of the high-frequency station is different. For example, some cells contain 16 beams, some cells contain 32 beams; some high-frequency stations support simultaneous transmission of all beams in the cell, and some high-frequency sites only support simultaneous transmission. Partial beam; on the other hand, beam areas at different high frequency sites The sub-dimensions may be different, that is, some high-frequency stations distinguish different beams by frequency domain, and some high-frequency stations distinguish different beams by time domain, and some high-frequency stations use different code domain resources to distinguish different beams.

In addition, there may be quite a number of different combinations of high frequency stations with different beam transmission capabilities and different beam discrimination dimensions. For terminals without any prior information, this will greatly increase the downlink synchronization and the delay to the optimal beam identification process, which will seriously affect the access speed of the terminal to the high frequency station; and this will also increase the terminal to optimal beam identification. The complexity reduces the accuracy of the identification and even causes the terminal to not recognize the optimal beam.

The above technical problem does not give an achievable solution for beam identification based on high frequency communication in the related art.

Summary of the invention

The following is an overview of the topics detailed in this document. This Summary is not intended to limit the scope of the claims.

Embodiments of the present invention provide a beam identification method, system, and network node, which can reduce downlink synchronization and delay for an optimal beam identification process.

The embodiments of the present invention adopt the following technical solutions.

A beam identification method comprising:

The first network node sends one or a set of beam identification assistance information to the second network node; wherein the beam identification assistance information corresponds to one or a group of high frequency stations for indicating high access to the second network node Beam information required by the frequency station.

Optionally, the sending, by the first network node, one or a group of beam identification auxiliary information to the second network node includes:

Transmitting, by the first network node, the beam identification auxiliary information saved by the first network node to the second network node;

The link includes at least one of: a cellular communication network link, a high frequency network link, a device to device D2D network link, an Institute of Electrical and Electronics Engineers IEEE system network link, an ad hoc network link.

Optionally, the first network node sends one or a group of beam identification assistants to the second network node. Help information includes:

The first network node sends beam identification auxiliary information to the second network node by using one or more of the following modes: a broadcast message mode, a multicast message mode, and a unicast message mode;

The broadcast message mode includes: the first network node broadcasting transmit beam identification auxiliary information to all second network nodes residing in the network or its coverage;

The multicast message mode includes: the first network node sending the same beam identification auxiliary information to a specific group of second network nodes;

The unicast message mode includes: the first network node sending beam identification auxiliary information to a specific second network node.

Optionally, when the first network node is a base station, the sending, by the first network node, one or a group of beam identification auxiliary information to the second network node includes:

The base station sends beam identification auxiliary information to all the second network nodes residing in the own network by using a system broadcast message on the existing carrier; or the base station controls the RRC signaling to the specific second network node by using radio resource control Transmitting beam identification assistance information; or, the base station groups the second network node, assigns a group identity, and transmits beam identification assistance information to the second network node in the specific packet;

When the first network node is a D2D device, the sending, by the first network node, one or a group of beam identification auxiliary information to the second network node includes:

The D2D device broadcasts beam-assisted identification information; or the D2D device is connected to the second network node by a D2D link, and sends beam-assisted identification information to the connected second network node;

When the first network node is an access point of the IEEE system, the sending, by the first network node, one or a group of beam identification auxiliary information to the second network node includes:

The access point of the IEEE system is connected to the second network node via an IEEE system communication link, and transmits beam-assisted identification information to the connected second network node.

Optionally, the beam identification auxiliary information includes one or more of the following information:

Identification information of the high frequency station, working frequency bandwidth, number of high frequency station beams, spatial distribution of high frequency station beams, beam identification signal transmission mode in different beam directions, and beam identification signal transmission configuration information.

Optionally, the spatial distribution manner of the high-frequency station beam is spatially distributed by each of the subordinates of the high-frequency station, and includes one of the following distribution modes: horizontal distribution, vertical distribution, horizontal and vertical combination distribution;

The beam identification signal is: a signal sequence sent by the high frequency station in each beam direction for the second network node to identify an optimal beam;

The method for transmitting the beam identification signal in the different beam directions includes one of the following modes: time division mode, frequency division mode, code division mode, time division code division combination mode, frequency division code division combination mode, time division frequency division combination mode, time division Frequency division code division and combination method;

The transmission configuration information of the beam identification signal includes one or more of the following information: index information of each beam, a resource set of the beam identification signal transmitted by the high frequency station, a transmission period of the beam identification signal, and a high frequency station at each Time domain resources, frequency domain resources, and sequence resources respectively occupied by the beamforming signals in the beam direction.

Optionally, the time division manner includes: a manner of distinguishing different beam directions only by different time domain resources occupied by the transmit beam identification signal;

The frequency division mode includes: a method of distinguishing different beam directions only by different frequency domain resources occupied by the transmission beam identification signal;

The code division manner includes: a manner of distinguishing different beam directions only by using different beam identification signals;

The time division code combining manner includes: different ways of distinguishing different beam directions according to different beam identification signals used, and/or different time domain resources occupied by beam identification signals;

The frequency division code division combining manner includes: different ways of different beam directions according to different beam identification signals used, and/or different frequency domain resources occupied by beam identification signals;

The time division frequency division combining manner includes: distinguishing different beam directions by different time domain resources occupied by the beam identification signal, and/or different frequency domain resources occupied by the beam identification signal;

The time division frequency division code combination method includes: a method for distinguishing different beam directions according to one or more of the following parameters: a time domain resource used for transmitting a beam identification signal, a frequency domain resource, and a used Beam identification signal.

Optionally, the first network node includes one or more of the following network nodes: a base station, a relay, a D2D network user equipment, an access point AP of an IEEE system, a station STA of an IEEE system, and an ad hoc network device. , the network element side network element, and the core network side network element;

The second network node is a network element device having a capability of accessing a high frequency network, including a terminal, or a relay node, or a base station.

A beam identification method comprising:

The second network node acquires one or a set of beam identification auxiliary information;

The second network node identifies an optimal beam of the high frequency station based on the obtained beam identification assistance information.

Optionally, the identifying, by the second network node, the optimal beam of the high frequency station according to the obtained beam identification auxiliary information includes:

The second network node transmits the time domain, the frequency domain, and the sequence resource information occupied by the beam identification signal in each beam direction according to the obtained high frequency station indicated in the beam identification auxiliary information, and respectively respectively signals for each beam direction Intensity is measured;

Select one beam with the highest signal strength as the optimal beam; or select a group of beams as the optimal beam according to the order of signal strength from high to low; or select one or more beams that meet the predefined signal strength requirements as the optimal beam. .

Optionally, the second network node acquires the beam identification auxiliary information by one or more of the following methods: reading a broadcast message, receiving a multicast message, and receiving a unicast message.

Optionally, the acquiring, by the second network node, the beam identification auxiliary information includes one or more of the following manners:

The second network node reads a system broadcast message acquisition under a cellular communication network;

The second network node receives a multicast message of a base station in a cellular communication network;

Receiving, by the second network node, radio resource control RRC signaling sent by a base station in a cellular communication network;

The second network node monitors surrounding D2D network user settings in a device-to-device D2D network Broadcast message to be sent;

The second network node receives through a D2D link;

The second network node is received by an Institute of Electrical and Electronics Engineers IEEE system communication link.

Optionally, the second network node is a network element device having a capability of accessing a high frequency network, including a terminal, or a relay node, or a base station;

The acquiring, by the second network node, the beam identification auxiliary information includes:

The second network node acquires beam identification auxiliary information through the current network.

A beam identification system includes: a first network node and a second network node;

The first network node is configured to send one or a set of beam identification assistance information to the second network node; the beam identification assistance information corresponds to one or a group of high frequency stations for the second network node Indicates the beam information required to access the high frequency station;

The second network node is configured to acquire one or a group of the beam identification auxiliary information from the first network node, and identify an optimal beam of the high frequency station according to the obtained beam identification auxiliary information.

Optionally, the first network node comprises one or more of the following network nodes: a base station, a relay, a device-to-device D2D network user equipment, an Institute of Electrical and Electronics Engineers IEEE system access point AP, an IEEE system Site STA, self-organizing network device, network management side network element, and core network side network element.

Optionally, the second network node is a network element device having a capability of accessing a high frequency network, including a terminal, or a relay node, or a base station.

The link between the first network node and the second network node includes at least one of: a cellular communication network link, a high frequency network link, a D2D network link, an IEEE system network link, an ad hoc network Link.

Optionally, the first network node sends beam identification assistance information to the second network node by using one or more of the following manners: a broadcast message mode, a multicast message mode, and a unicast message mode.

Optionally, the second network node includes:

An acquiring module, configured to acquire the beam identification auxiliary information by one or more of the following methods: reading a broadcast message, receiving a multicast message, and receiving a unicast message;

The processing module is configured to: according to the time domain, the frequency domain, and the sequence resource information occupied by the high frequency station in the beam identification auxiliary information obtained by the obtaining module, transmitting the beam identification signal in each beam direction, respectively The signal strength of the beam direction is measured; one beam with the highest signal strength is selected as the optimal beam; or a group of beams is selected as the optimal beam according to the signal strength from high to low; or, the selection meets the requirements of the predefined signal strength. One or more beams are used as the optimal beam.

Optionally, the obtaining module is further configured to: initiate a request for requesting beam identification auxiliary information to the first network node.

A network node, comprising: a transmitting module, configured to send one or a group of beam identification auxiliary information to another network node; the beam identification auxiliary information corresponding to one or a group of high frequency stations for The network node indicates the beam information required to access the high frequency station.

Optionally, the network node comprises one or more of the following network nodes: a base station, a relay, a device-to-device D2D network user equipment, an Institute of Electrical and Electronics Engineers IEEE system access point AP, an IEEE system site STA, self-organizing network device, network management side network element, and core network side network element.

A network node, including:

Obtaining a module, configured to obtain one or a group of beam identification auxiliary information;

And a processing module, configured to identify an optimal beam of the high frequency station according to the beam identification auxiliary information obtained by the acquiring module.

Optionally, the acquiring module acquiring one or a group of beam identification auxiliary information includes:

The acquiring module acquires the beam identification auxiliary information by one or more of the following methods: reading a broadcast message, receiving a multicast message, and receiving a unicast message.

Optionally, the processing module, according to the beam identification auxiliary information obtained by the acquiring module, identifying an optimal beam of the high frequency station includes:

And the processing module performs time domain, frequency domain, and sequence resource information occupied by the beam identification signal in each beam direction according to the beam identification auxiliary information obtained by the acquiring module, respectively, for each beam direction The signal strength is measured; one beam with the highest signal strength is selected as the optimal beam; or one set of beams is selected as the optimal beam in order of high to low signal strength; or one or more selected to meet the predefined signal strength requirements The beams are used as the optimal beam.

Optionally, the obtaining module is further configured to: initiate a request for requesting beam identification auxiliary information to the another network node.

Optionally, the network node is a network element device having a capability of accessing a high frequency network, including a terminal, or a relay node, or a base station.

A computer readable storage medium storing computer executable instructions for performing the above method.

Compared with the related art, the technical solution provided by the embodiment of the present invention includes, on the one hand, the first network node sending one or a group of beam identification auxiliary information to the second network node, where the beam identification auxiliary information corresponds to one or a group of high frequency a station, configured to indicate, to the second network node, beam information required for accessing the high frequency station; and, on the other hand, the second network node acquires one or a group of beam identification auxiliary information, and identifies the high frequency according to the obtained beam identification auxiliary information The optimal beam for the site. In the technical solution provided by the embodiment of the present invention, since the second network node obtains the beam identification auxiliary information required for the beam identification process, the range of detection in the access process is reduced, and the manner of accessing the high frequency station through blind detection is Ratio, reducing the complexity of optimal beam identification, reducing downlink synchronization and optimal beam identification The delay of the process, which in turn increases the access speed to the high frequency site.

In an alternative embodiment of the present invention, since the second network node obtains beam identification auxiliary information, such as the number of beams and the resources occupied by the beam identification signal, it is ensured that the location of the beam identification signal can be found, thereby avoiding the possibility. The occurrence of the optimal beam due to the difference in the high frequency station is not recognized, and the complexity of the optimal beam identification is also reduced, and the accuracy of beam identification is improved.

Other aspects will be apparent upon reading and understanding the drawings and detailed description.

BRIEF abstract

1(a) is a flowchart of a beam identification method on a first network node side according to an embodiment of the present invention;

1(b) is a flowchart of a beam identification method on a second network node side according to an embodiment of the present invention;

2 is a schematic diagram of an application scenario corresponding to the first embodiment and the second embodiment of the present invention;

3 is a schematic flow chart of a first embodiment of the present invention;

4 is a schematic diagram of time-frequency resources occupied by each beam identification signal corresponding to the first embodiment of the present invention;

FIG. 5 is a schematic flowchart of a second embodiment of the present invention; FIG.

FIG. 6 is a schematic diagram of time-frequency resources occupied by each beam identification signal according to a second embodiment of the present invention; FIG.

FIG. 7 is a schematic diagram of an application scenario corresponding to a third embodiment of the present invention; FIG.

8 is a schematic flow chart of a third embodiment and a fourth embodiment of the present invention;

FIG. 9 is a schematic diagram of time-frequency resources occupied by each beam identification signal according to a third embodiment of the present invention; FIG.

FIG. 10 is a schematic diagram of an application scenario corresponding to a fourth embodiment of the present invention; FIG.

FIG. 11 is a schematic diagram of time-frequency resources occupied by each beam identification signal according to a fourth embodiment of the present invention; FIG.

FIG. 12 is a schematic diagram of an application scenario corresponding to a fifth embodiment, a sixth embodiment, and a seventh embodiment of the present invention;

13 is a schematic flowchart of a fifth embodiment, a sixth embodiment, and a seventh embodiment of the present invention;

FIG. 14 is a schematic diagram of time-frequency resources occupied by each beam identification signal according to a fifth embodiment of the present invention; FIG.

15 is a schematic diagram of a scene in which a high-frequency station beam is spatially distributed vertically according to a sixth embodiment of the present invention;

FIG. 16 is a schematic diagram of time-frequency resources occupied by each beam identification signal according to a sixth embodiment of the present invention; FIG.

17 is a schematic diagram of a scene in which a horizontal and vertical combination of high-frequency station beams is spatially distributed according to a seventh embodiment of the present invention;

FIG. 18 is a schematic diagram of time-frequency resources occupied by each beam identification signal according to a seventh embodiment of the present invention; FIG.

FIG. 19 is a schematic diagram of an application scenario corresponding to an eighth embodiment of the present invention; FIG.

20 is a schematic flow chart of an eighth embodiment of the present invention;

FIG. 21 is a schematic diagram of an application scenario corresponding to a ninth embodiment of the present invention;

22 is a schematic flow chart of a ninth embodiment of the present invention;

23 is a schematic structural diagram of a beam identification system according to an embodiment of the present invention;

24 is a schematic diagram of a first network node according to an embodiment of the present invention;

FIG. 25 is a schematic diagram of a second network node according to an embodiment of the present invention.

Embodiments of the invention

It should be noted that, in the case of no conflict, the features in the embodiments and the embodiments in the present application may be arbitrarily combined with each other.

1(a) and (b) are flowcharts of a beam identification method according to an embodiment of the present invention. As shown in FIG. 1(a), for the first network node side, the beam identification method includes step 100:

Step 100: The first network node sends one or a group of beam identification auxiliary information to the second network node, where the beam identification auxiliary information corresponds to one or a group of high frequency stations, and is used to indicate to the second network node. Beam information required to access the high frequency station.

Optionally, the first network node includes one or more of the following network nodes: a base station, Relay, D2D (Device-to-Device) network user equipment, AP (Access Point, access point) of IEEE (Institute of Electrical and Electronics Engineers) system, STA of IEEE system ( Site), self-organizing network equipment, network management side network element, core network side network element, and so on.

The first network node stores beam identification auxiliary information required for accessing the relevant high frequency station, and may send the beam identification auxiliary information saved by the second network node to the The second network node.

Optionally, the link between the first network node and the second network node includes at least one of the following: an existing cellular communication network link (such as GSM (Global System for Mobile Communication), UMTS (Universal Mobile) Telecommunications System, Universal Mobile Telecommunications System, CDMA95/CDMA2000 (Code Division Multiple Access 95/Code Division Multiple Access 2000, CDMA (Long Term Evolution), LTE-A) (Long Term Evolution Advanced, system network, etc.), high-frequency network link, D2D network link, IEEE system network (such as WPAN (wireless personal area network) system network, WLAN (wireless local area network) system network, WMAN (wireless city) Domain network) System network, WRAN (wireless area network) system network, etc.) Linked, self-organizing network links.

It should be noted that, typically, the link between the first network node and the second network node is one of the above links. In addition, for a UE (User Equipment, user equipment, or terminal) to access a high frequency station, the UE may seek multiple possible live networks to obtain beam identification auxiliary information, assuming that the current state of the UE is camped on the cellular. The communication network also has links with other D2D devices. At this time, when the UE has high frequency network access requirements, the UE may request beam identification auxiliary information to the cellular communication network and the D2D device, respectively.

Optionally, the sending, by the first network node, beam identification assistance information to the second network node includes:

The first network node sends beam identification assistance information to the second network node by one or more of the following methods: a broadcast message mode, a multicast message mode, and a unicast message mode.

among them,

The method for broadcasting a message includes: the first network node broadcasts and transmits beam identification auxiliary information to all second network nodes in the network that it resides or in its coverage;

Here, multicast refers to sending a message to a group of second network nodes. The information refers to that the occupied physical resources and the carried content are the same, and are not separately sent for multiple second network nodes in the same group. As an example, an eNB (Evolved Node B) carries the multicast beam identification auxiliary information on a certain resource of the PDSCH (Physical Downlink Shared Channel) and is indicated by a PDCCH (Physical Downlink Control Channel). The location of the PDSCH carrying the multicast beam identification auxiliary information, the content indicated in the PDCCH can only be solved by the group ID (group identifier), that is, the UE can obtain the information by decoding the PDCCH with the group ID of the group in which the group is located. The location in the PDSCH.

It should be noted that there may be multiple notification modes in the same network. For example, for the beam identification auxiliary information of a certain high-frequency site at a specific location, the first network node sends the second network node to the second through multicast or unicast. The network node; at the same time, for the beam identification auxiliary information of other high frequency stations, the first network node may send the message to the second network node by means of a broadcast message. In the view of the second network node, it is possible to obtain beam identification auxiliary information of different high frequency stations through different message modes.

Optionally,

When the first network node is a base station, the base station may send the beam identification auxiliary information by using the system broadcast message on the existing carrier to transmit the beam identification auxiliary information to all the second network nodes that are in the subordinate; or the base station may also pass the RRC (Radio Resource Control, wireless) Resource control) signaling to transmit beam identification assistance information to a specific second network node; or, the base station may also group, allocate, and allocate the second network node The group identifies and transmits beam identification assistance information to a second network node within a particular packet.

When the first network node is a D2D device, the D2D device may broadcast beam-assisted identification information; or it may be connected to the second network node through a D2D link, and send beam-assisted identification information to the connected second network node;

When the first network node is an access point of the IEEE system, the access point of the IEEE system may be connected to the second network node through the IEEE system communication link, and send beam-assisted identification information to the connected second network node.

Optionally, the beam identification auxiliary information in step 100 includes one or more of the following information:

Optionally, the spatial distribution pattern of the high-frequency site beam is: a spatial distribution pattern of each beam subordinate to the high-frequency station, including one of the following distribution modes: horizontal distribution, vertical distribution, and horizontal and vertical combination distribution.

The beam identification signal is: a signal sequence sent by the high frequency station in each beam direction for the second network node to identify the optimal beam.

The method for transmitting the beam identification signal in the different beam directions includes one of the following modes: time division mode, frequency division mode, code division mode, time division code division combination mode, frequency division code division combination mode, time division frequency division combining mode , time division frequency code division and combination.

Optionally,

The time division method includes: different ways of distinguishing different beam directions by different time domain resources occupied by the transmission beam identification signal, that is, dividing the resources of the beam identification signal into multiple time domain resources or time domain resource groups, and the high frequency station is not Sending beam identification signals to different beam directions simultaneously on the domain resource or different time domain resource groups;

The frequency division method includes: different ways of distinguishing different beam directions by different frequency domain resources occupied by the transmission beam identification signal, that is, the frequency of the signal for transmitting the beam identification signal is divided into multiple frequency domain resources or frequency domain resource groups, and the high frequency station is Sending beam identification signals to different beam directions on different frequency domain resources or different frequency domain resource groups;

The code division method includes: a method of distinguishing different beam directions only by using different beam identification signals, that is, a high frequency station transmits different beam identification signals to different beam directions on resources for transmitting beam identification signals;

The time division code combining method includes: different ways of distinguishing different beam directions according to different beam identification signals used, and/or different time domain resources occupied by beam identification signals;

The time division frequency division combining manner includes: different ways of different time domain resources occupied by the transmission beam identification signal, and/or different frequency domain resources occupied by the beam identification signal transmission, to distinguish different beam directions;

The time division frequency division code division combination method includes: different ways of distinguishing different beam directions according to one or more of the following parameters: time domain resources used for transmitting beam identification signals, frequency domain resources, and beam identification used signal.

The transmission configuration information of the beam identification signal includes one or more of the following information: index information of each beam, a resource set of a beam identification signal transmitted by a high frequency station, a transmission period of the beam identification signal, and a high frequency station. The time domain resources, frequency domain resources, and sequence resources respectively occupied by the beam identification signals are transmitted in each beam direction.

As shown in FIG. 1(b), for the second network node side, the beam identification method includes steps 101-102:

Step 101: The second network node acquires one or a group of beam identification auxiliary information.

Step 102: The second network node identifies an optimal beam of the high frequency station according to the obtained beam identification auxiliary information.

Optionally, the second network node is a network element device having the capability of accessing a high frequency network, and includes one or more of the following network nodes: a terminal, a relay node, and a base station.

The acquiring, by the second network node, the beam identification auxiliary information comprises: acquiring, by the second network node, beam identification auxiliary information by using a network where the network node is currently located.

Optionally, the second network node may obtain the beam identification auxiliary information by one or more of the following methods: reading a broadcast message, receiving a multicast message, and receiving a unicast message.

The second network node receives RRC signaling sent by a base station in a cellular communication network;

Listening to the broadcast message sent by the surrounding D2D network user equipment in the second network node D2D network;

The second network node receives through a D2D link;

The second network node is received over an IEEE system communication link.

Optionally, the identifying the optimal beam of the high frequency station according to the obtained beam identification auxiliary information includes:

In the technical solution provided by the embodiment of the present invention, since the second network node obtains the beam identification auxiliary information required for the beam identification process, the range of detection in the access process is reduced, and the manner of accessing the high frequency station through blind detection is Compared, the complexity of the optimal beam identification is reduced, the downlink synchronization and the delay of the optimal beam identification process are reduced, and the access speed to the high frequency station is improved. In addition, since the second network node obtains beam identification auxiliary information, such as the number of beams and the resources occupied by the beam identification signal, it is ensured that the position where the beam identification signal is located can be found, and the possible difference due to the high frequency station is avoided. The result is that the optimal beam cannot be identified, and the complexity of the optimal beam identification is also reduced, and the accuracy of beam identification is improved.

2 is a schematic diagram of an application scenario corresponding to the first embodiment and the second embodiment of the present invention. As shown in FIG. 2, in the first embodiment, it is assumed that the UE resides on a network of a BS (base station). Obtaining beam identification auxiliary information by reading a system broadcast message sent by the BS, and assisting according to beam identification Help information for beam identification. In the first embodiment, the LTE network in the related art is taken as an example, and the corresponding first network node is a base station, for example, an eNB, and other cellular communication networks, such as GSM, UMTS, CDMA95/CDMA2000, and LTE-A networks, are also applicable. . FIG. 3 is a schematic flowchart of the first embodiment of the present invention. As shown in FIG. 3, the method includes steps 300-302:

Step 300: The eNB sends a system broadcast message, where the beam identification auxiliary information of the high frequency neighboring area is carried.

In the first embodiment, the high-frequency neighboring cell of the eNB is considered to be a high-frequency site cell with overlapping coverage or adjacent coverage with the eNB, and has a neighbor relationship with the eNB; that is, the eNB subordinate UE may enter through handover or cell reselection. High frequency neighboring area, as shown in FIG. 2, it is assumed that two high frequency stations HBS1, HBS2 are included in this embodiment;

For the high-frequency neighboring area, the eNB adds a SIB (System Information Block) such as SIBx to indicate the high-frequency neighbor list information, that is, beam identification auxiliary information; in Table 1, the relevant beam information is given for HBS1 and HBS2, respectively. . The contents of the beam identification auxiliary information are shown in Table 1:

Table 1, beam identification auxiliary information

FIG. 4 is a schematic diagram of time-frequency resources occupied by each beam identification signal corresponding to the first embodiment of the present invention. FIG. 4 is a schematic diagram showing time-frequency resources occupied by each beam identification signal of the HBS1 shown in FIG. Each beam transmits the same sequence d ₀ at the respective time-frequency resources, and different beams are distinguished only in a time division manner. The beam transmission period refers to the period in which the HBS1 completes all beam transmissions, that is, the UE can complete the identification of all the beams in one beam identification period, where the beam identification period is 8 subframes; the next period is the repetition of the previous period. . The structure of HBS2 is similar.

In the first embodiment, the number of beams of the high-frequency station is 16 and 8 respectively; the spatial distribution of the beams is horizontal, that is, each beam direction is spatially distributed horizontally, and beams of different beam directions are used. For example, a UE covering different azimuth ranges is taken as an example.

Step 301: The UE performs optimal beam identification, including:

First, the identification of the high-frequency station: HBS1 and HBS2 work at different frequency points, and the UE can judge the nearby high-frequency station according to the energy detected in the frequency band where HBS1 and HBS2 are located. In the embodiment, it is assumed that the UE is in the vicinity of HBS1, and attempts to perform optimal beam identification on the beam of HBS1.

Then, optimal beam identification is performed: the UE needs to first find the time domain location where each beam identification signal is located, that is, downlink synchronization with HBS ₁ , and identify the position of each subframe (subframe), thereby finding the first time of each subframe. Gap and beam identification signals on the second time slot symbols 2, 3; measuring the operating band of the HBS ₁ (ie, in the frequency domain of the center frequency 32.5 GHz, bandwidth 500 MHz, the time of each beam previously found In the frequency resource position, the sequence d _{0 is} used to correlate with the received signal, and the beam with the highest beam identification signal strength is obtained as the optimal beam. In this embodiment, the beam on the second time slot of subframe3 is the most. The optimal beam, the corresponding beam index is 0111, completes the identification process of the downlink optimal beam.

Step 302: The UE initiates a random access to the HBS1, and sends the identified optimal beam index 0111 to the HBS1, instructs the HBS1 to use the beam to be used when the UE sends the downlink message, and completes the random access procedure.

It should be noted that, in this embodiment, the eNB sends the beam identification auxiliary information to the UE by using a system broadcast message, where the beam identification auxiliary information is loaded in the SIB, and the SIB message may be as described in this embodiment. For the new SIBx (for example, the existing LTE R12 version has SIB1-SIB17, and in addition to these existing SIBs, the new SIB18 is used for the transmission of the beam identification auxiliary information described in this embodiment); In a certain SIB of the existing SIB1-SIB17, the beam identification auxiliary information described in this embodiment is added (for example, if added in the existing SIB5, the UE supporting the high frequency network access can acquire the beam by reading the SIB5. Identify auxiliary information).

The eNB may also send by means of a multicast message, that is, the eNB pre-groups the UE, such as based on the geographic location, and assigns a group ID to each packet, and the group ID is used to decode the multicast message. The eNB sends the beam identification auxiliary information of the HBS in the vicinity of the UE group to the UE group according to the location distribution of the HBS, and all UEs in the UE group can decode the multicast message by using the group ID to obtain beam identification. Supplementary information.

It should be emphasized that, after the UE accesses the high-frequency network, the embodiment does not limit whether the UE disconnects from the eNB, that is, after the UE accesses the high-frequency network, the UE may be in the form of carrier aggregation. Or the form of the double link is connected to the high frequency station HBS and the eNB at the same time; or it may be composed of only the high frequency station HBS. Subsequent other embodiments do not limit the chain after the UE accesses the high frequency network. Connection form.

As shown in FIG. 2, in the second embodiment, it is assumed that the UE camps on the network of the BS, and the beam identification auxiliary information is obtained by reading the system broadcast message sent by the BS, and beam identification is performed according to the beam identification auxiliary information. In the second embodiment, taking the LTE network in the related art as an example, the corresponding first network node is a base station, which is assumed to be an eNB, and other cellular communication networks such as GSM, UMTS, CDMA95/CDMA2000, and LTE-A networks are also applicable. . FIG. 5 is a schematic flowchart of a second embodiment of the present invention. As shown in FIG. 5, the method includes the following steps:

Step 500: The UE sends a beam identification assistance information request to an eNB in the network in which it resides.

In the second embodiment, it is assumed that the UE has a high frequency network access requirement, such as a large amount of data to be transmitted, or a large bandwidth service requirement, and it is desired to identify and access the high frequency station, and therefore, to the current camp. The eNB sends a beam identification auxiliary information request message to acquire related information of a high frequency station that it may access, thereby initiating access to the HBS.

Step 501: The eNB sends an RRC message including beam identification auxiliary information to the UE to indicate the beam information of the high frequency neighboring area to the UE.

In the second embodiment, the high-frequency neighboring cell of the eNB is considered to be a high-frequency site cell with overlapping coverage or adjacent coverage with the eNB, and the neighboring cell relationship with the eNB, that is, the eNB subordinate UE may enter the high through handover or cell reselection. The frequency neighboring area, as shown in FIG. 2, is assumed to include the high frequency station HBS1 in this embodiment. The contents of the beam identification auxiliary information are shown in Table 2:

Table 2, beam identification auxiliary information

FIG. 6 is a schematic diagram of a time-frequency resource occupied by each beam identification signal corresponding to a second embodiment of the present invention; FIG. 6 is a schematic diagram of a time-frequency resource occupied by each beam identification signal of the HBS1, as shown in FIG. Frequency division is used to distinguish different beams. Therefore, each beam occupies the same time domain resource in each beam identification period, that is, symbols 2, 3, and 4 of each time slot. The beam transmission period refers to a period in which the HBS1 completes all beam transmissions, that is, the UE can complete identification of all beams in one beam identification period, where the beam identification period is 1 time slot (assumed to be 1 ms); the next period It is a repetition of the previous cycle.

In the second embodiment, each beam occupies a different 6 RBs in the frequency domain, and each beam transmits the same sequence d ₀ in the respective time-frequency resources, and different beams are distinguished only in a frequency division manner.

Step 502: The UE performs optimal beam identification, including:

The UE measures the working frequency band of the HBS1 (that is, determines the frequency domain position of the RB of the beam index number 30 in the frequency domain range of the center frequency point of 32.5 GHz and the bandwidth of 500 MHz, and each of the six RBs is one wave. The frequency domain resource of the beam is subjected to sliding correlation on the frequency domain resources occupied by the beam identification signal, and the time domain position where the beam identification signal is located is found, and is sequentially correlated with the sequence of 16 beams to obtain a beam with the highest signal strength. As an optimal beam, in this embodiment, it is assumed that the beam index of the determined optimal beam is 0111. The process of identifying the optimal beam of the downlink is completed.

Step 503: The UE initiates a random access to the HBS1, and sends the identified optimal beam index 0111 to the HBS1, instructs the downlink beam that the HBS1 should adopt for the UE, and completes the random access procedure.

It should be noted that, in this embodiment, the UE may continuously measure the beam identification signals of multiple periods and perform a combining process to improve the accuracy of the identification.

In addition, if the UE in this embodiment is an omnidirectional receiving antenna, the determination of the intensity of all beam signals is completed within one beam identification period. When the UE is a directional receiving antenna, the UE may complete the identification of each beam through the first receiving antenna direction in the first time slot of the subframe 0; the second time slot of the subframe 0 is completed by the second receiving antenna direction. The identification of each beam, and so on, after all the receiving antenna directions are identified for all beams, the highest signal strength is found as the optimal downlink transmitting beam. Correspondingly, in this case, the receiving antenna mode of the UE is also Optimal receive antenna direction.

It should be emphasized that the implementation manner of distinguishing different beams by the frequency division method in the second embodiment is only an optional embodiment, and other manners of transmitting the identification signals of different beams by frequency division are applicable to the embodiments of the present invention.

FIG. 7 is a schematic diagram of an application scenario corresponding to the third embodiment of the present invention. As shown in FIG. 7, in the third embodiment, it is assumed that the UE1 and the UE2 are user equipments of the D2D network; The beam information of the site HBS, and the beam identification auxiliary information is transmitted through the D2D network broadcast, and the UE2 reads the D2D broadcast message sent by the UE1, and performs beam identification according to the beam identification auxiliary information. FIG. 8 is a schematic flowchart of a third embodiment of the present invention. As shown in FIG. 8, the method includes steps 800-802:

Step 800: The UE2 reads the broadcast message sent by the surrounding D2D network user equipment UE1, where the beam identification auxiliary information is included.

In this embodiment, both UE2 and UE1 support the D2D function, and UE2 obtains the information sent by UE1. The beam identification auxiliary information is known to have a high frequency station around it; since the D2D network is a short distance coverage network, UE1 transmits high frequency station information in its vicinity, and the D2D device capable of receiving UE1 broadcast should also be in the high frequency. Near the site HBS. The contents of the beam identification auxiliary information are shown in Table 3:

Table 3, beam identification auxiliary information

table 3

FIG. 9 is a schematic diagram of a time-frequency resource occupied by each beam identification signal corresponding to a third embodiment of the present invention, and FIG. 9 is a schematic diagram showing time-frequency resources occupied by each beam identification signal of the HBS, and in the third embodiment, Since different beams are distinguished by code division, the sequence resources used by each beam are orthogonal to each other, and each beam can occupy the same time-frequency resource in each beam identification period, that is, the sequence of each beam. Both are transmitted on symbols 2, 3, 4 of the first time slot of each subframe. The beam transmission period refers to a period in which the HBS completes all beam transmissions, that is, the UE can complete identification of all beams in one beam identification period, where the beam transmission period is 1 subframe (assumed to be 1 ms); the next period is Repeat the previous cycle.

Step 801: UE2 performs optimal beam identification, including:

UE2 measures the working frequency band of the HBS (ie, finds the frequency domain location where the middle 20 RBs are located in the frequency domain range of the center frequency of 32.5 GHz and the bandwidth of 500 MHz), and uses the sequence d ₀ to correlate with the received signal to obtain a beam. A beam with the highest signal strength is identified as the optimal beam. In this embodiment, it is assumed that the beam index of the determined optimal beam is 0111. The process of identifying the optimal beam of the downlink is completed.

Step 802: The UE2 initiates a random access to the HBS, and sends the identified optimal beam index 0111 to the HBS, instructs the HBS to use the beam to be used when the UE2 sends the downlink message, and completes the random access procedure.

It should be noted that, in this embodiment, the UE2 can continuously measure the beam identification signals of multiple periods and perform a combining process to improve the accuracy of the identification.

Since the UE1 and the UE2 perform the beamforming auxiliary information interaction through the D2D network, the distance between the UE1 and the UE2 is very close (for example, on the order of several tens of meters). Therefore, if the UE1 has entered the HBS, the downlink beam that the UE1 is receiving should be The D2D device (such as UE2) that can receive the message sent by the UE1 is similar, or is the adjacent beam of the downlink beam corresponding to the UE1. Therefore, when transmitting the beam identification auxiliary information, the UE1 can select the partial beam direction information to broadcast to the surrounding. The D2D device (including UE2) reduces the detection range of UE2 and reduces the complexity of UE2 beam identification. It should be noted that other scenarios may also reduce the detection range of the second network node by sending partial beam direction information, thereby reducing the complexity of the optimal beam identification of the second network node.

It should be noted that the implementation of distinguishing different beams by means of code division is given in this embodiment. The mode is only an optional embodiment, and other manners of transmitting the identification signals of different beams by code division are applicable to the embodiments of the present invention.

FIG. 10 is a schematic diagram of an application scenario corresponding to the fourth embodiment of the present invention. As shown in FIG. 10, in the fourth embodiment, it is assumed that the UEs UE1 and UE2 are D2D network user devices; different from the third embodiment. In this embodiment, it is assumed that the UE1 stores the beam information of the high frequency station HBS, and transmits the beam identification auxiliary information through the D2D link with the UE2, and the UE2 performs beam identification according to the beam identification auxiliary information. The flow chart of the fourth embodiment is also shown in FIG. 8, which is different from the third embodiment.

In step 800, the embodiment is that the UE2 receives the broadcast message sent by the D2D network user equipment UE1, and includes beam identification auxiliary information.

In this embodiment, except that UE2 and UE1 support the D2D function, UE2 obtains the beam identification auxiliary information sent by UE1, and knows that there is a high frequency station around it; since the D2D network is a short-distance coverage network, UE1 sends the vicinity thereof. The information of the high frequency station HBS, and the D2D device that can receive the broadcast of the UE1 should also be in the vicinity of the high frequency station HBS. The HBS in this embodiment corresponds to the optimal downlink beam of the UE2 and the downlink beam direction corresponding to the UE1. It should be very similar, ie the optimal downlink beam of UE1, or one or more adjacent beams. Therefore, UE1 transmits partial beam information for UE2. In this embodiment, the index of the HBS optimal downlink beam corresponding to the UE1 is 0011, and the UE1 sends the identification information of each of the three beams (0000, 0001, 0010, 0011, 0100, 0101, 0110) adjacent to the 0011 and its left and right. For UE2, the contents of the beam identification auxiliary information are as shown in Table 4:

Table 4, beam identification auxiliary information

FIG. 11 is a schematic diagram of time-frequency resources occupied by each beam identification signal corresponding to the fourth embodiment of the present invention, and FIG. 11 is a schematic diagram showing time-frequency resources occupied by each beam identification signal of the HBS shown in FIG. 11, in the fourth embodiment, Since different beams are distinguished by combining time division codes, the sequence resources used by each beam on the same time-frequency resource are orthogonal to each other, and the sequences on different time domain resources may be the same. In this embodiment, there are two time-frequency resources in one beam identification period, such as symbols 2, 3, and 4 of the first slot of subframe 0; symbols 2, 3, and 4 of the first slot of Subframe 1; 20 RBs in the middle of the system bandwidth. The odd-numbered beams are transmitted on the odd-numbered sub-frames, and mutually orthogonal sequences are used; the even-numbered beams are transmitted on the even-numbered sub-frames, and each of the even-numbered beams adopts a mutually orthogonal sequence; the inter-parity inter-beam sequences may be the same or different , no special restrictions. In the beam identification signal transmission mode, the beam transmission period (that is, the period in which the HBS completes all beam transmissions) is 2 subframes (assumed to be 1 ms), that is, the UE can complete the knowledge of all the beams in 2 ms. do not.

Different from the step 801 in the third embodiment, the UE2 measures the working frequency band of the HBS (that is, finds the frequency domain location where the middle 20 RB is located in the frequency domain range of the center frequency of 32.5 GHz and the bandwidth of 500 MHz), and uses the sequence d. _{The n is} respectively associated with the received signal, and the beam with the highest beam identification signal strength is obtained as the optimal beam. In this embodiment, the determined optimal beam sequence is d ₀₁₀ , and the optimal beam appears on the subframe 1. Therefore, the corresponding optimal beam index is 0101, and the process of identifying the downlink optimal beam is completed.

Different from the step 802 in the third embodiment, in this embodiment, the UE 2 sends the identified optimal beam index 0101 to the HBS, and indicates the beam that the HBS should use when sending the downlink message to the UE2, and completes the random connection. Into the process.

It should be noted that the implementation manner of distinguishing different beams by the time-division code division combining manner given in this embodiment is only an optional embodiment, and other manners of transmitting the identification signals of different beams by time division code division are applicable to the present invention. Example.

FIG. 12 is a schematic diagram of an application scenario corresponding to the fifth embodiment, the sixth embodiment, and the seventh embodiment of the present invention. As shown in FIG. 12, in the fifth embodiment, it is assumed that the terminal UE supports the IEEE network at the same time. (such as IEEE802.11 WLAN network), as well as high frequency networks. It is assumed that the current terminal in the present embodiment is a link between the STA and the AP in the IEEE network, and can receive the message sent by the AP. In this scenario, the UE sends the beam identification auxiliary information corresponding to the high frequency station HBS according to the AP. Perform beam identification. FIG. 13 is a schematic flowchart of a fifth embodiment, a sixth embodiment, and a seventh embodiment of the present invention. As shown in FIG. 13, the method includes steps 1300 to 1302:

Step 1300: The UE receives a beam identification auxiliary message sent by the AP. The contents of the beam identification auxiliary information are shown in Table 5:

Table 5, beam identification auxiliary information

FIG. 14 is a schematic diagram of time-frequency resources occupied by each beam identification signal corresponding to a fifth embodiment of the present invention, and FIG. 14 is a schematic diagram showing time-frequency resources occupied by each beam identification signal of the HBS shown in FIG. Since different beams are distinguished by combining time division frequency division, the identification signals of the beams with odd index numbers are transmitted in the first time slot symbols 2, 3, and 4 of each subframe, and the occupied frequency domain resources start from The initial RB index number satisfies the following formula

30 denotes the starting RB index number of the beam 0000, and N denotes the number of RBs of the frequency domain resources occupied by each beam. In this embodiment, N=6 is assumed; n denotes a beam index. For example, a beam with a beam index of 0111 is used to start the frequency domain resource.

The number of occupied RBs is 6.

The identification signal of the beam with the even-numbered beam index is transmitted in the second time slot symbols 2, 3, and 4 of each subframe. The method for determining the frequency domain resources occupied by the beam is the same as the above, and is known to those skilled in the art. The above description is easy to implement based on the above description and will not be described here.

The transmission period of the beam identification signal is a subframe.

Step 1301: The UE performs optimal beam identification, including:

The UE measures the working frequency band of the HBS (ie, finds the time-frequency resource location where each beam is located in the frequency domain range of the center frequency of 32.5 GHz and the bandwidth of 500 MHz), and uses the sequence d ₀₀₀₀ to correlate with the received signal, respectively. A beam with the highest beam identification signal strength is obtained as the optimal beam. In this embodiment, the beam with the frequency domain resource of 42-48 RB is the optimal beam in the second time slot, and the corresponding beam index is 0101, and the downlink optimal is completed. Beam identification process.

Step 1302: The UE initiates a random access to the HBS, and sends the identified optimal beam index 0101 to the HBS, instructs the HBS to use the beam to be used when the UE sends the downlink message, and completes the random access procedure.

It should be noted that the implementation manner of distinguishing different beams by the time division frequency division combining manner given in this embodiment is only an optional embodiment, and other methods for transmitting different beam identification signals by time division frequency division combining manner are applicable. In the embodiment of the invention.

For example, the application scenario shown in FIG. 12 is taken as an example. FIG. 15 is a schematic diagram of a scenario in which a high-frequency site beam is vertically distributed in a space according to a sixth embodiment of the present invention. The implementation process is consistent with the fifth embodiment, as shown in FIG. As shown, the difference is that the beam identification signal is transmitted in a frequency division code division mode, and the high frequency station beam is spatially distributed in a vertical manner, which is embodied in the content of the beam identification auxiliary information, as shown in Table 6:

Table 6, beam identification auxiliary information

FIG. 16 is a schematic diagram of time-frequency resources occupied by each beam identification signal according to the sixth embodiment of the present invention, and FIG. 16 is a schematic diagram showing time-frequency resources occupied by each beam identification signal of the HBS shown in FIG. 16, in the sixth embodiment, Since different beams are distinguished by means of frequency division code division, different beams are distinguished by different frequency domains or code domains.

As shown in FIG. 16, the eight beams of 0000 to 0111 are transmitted on the first slot symbols 2, 3, 4, and RB30-40 of each subframe; and the eight beams of 1000 to 1111 are transmitted on the RB40-50; Each beam uses a different transmission sequence d _n .

It should be noted that the same sequence can be used for the beams transmitted in different frequency domains. For example, the beam 0000 and the beam 1000 can transmit the same sequence. When the beams transmitted in different frequency domains adopt the same sequence, the beams of the frequency resources are transmitted by using mutually orthogonal beam sequences for better identification.

The transmission period of the beam identification signal is a subframe.

The spatial distribution of the beams is vertical, and the vertical distribution refers to beams in different directions of the high-frequency station for covering UEs of different height ranges.

Different from the step 1301 in the fifth embodiment, the UE measures the working frequency band of the HBS (that is, finds the time-frequency resource location where each beam is located in the frequency domain range of the center frequency of 32.5 GHz and the bandwidth of 500 MHz). The sequence d _{n is} respectively correlated with the received signal, and the beam with the highest beam identification signal strength is obtained as the optimal beam. In the sixth embodiment, the beam with the frequency domain resource of 40-50 RB on the second time slot is The optimal beam, the corresponding beam index is 1101, completes the identification process of the downlink optimal beam.

Different from step 1302 in the fifth embodiment, in this embodiment, the UE initiates random access to the HBS, and sends the identified optimal beam index 1101 to the HBS, indicating that the HBS should send the downlink message to the UE. The beam is used and the random access process is completed.

It should be noted that the implementation manner of distinguishing different beams by means of frequency division code division in the embodiment is only an optional embodiment, and other methods for transmitting different beam identification signals by frequency division code division and combination are applicable. In the embodiment of the invention.

For example, the application scenario shown in FIG. 12 is taken as an example. FIG. 17 is a schematic diagram of a horizontal and vertical combined distribution manner of a high-frequency station beam in space according to a seventh embodiment of the present invention, and the implementation process is consistent with the fifth embodiment. As shown in FIG. 17, the difference is that the beam identification signal is transmitted in time division frequency division. The code division is combined, and the high-frequency site beam is spatially distributed in a horizontal and vertical combination. Reflected in the content of the beam identification auxiliary information, the high frequency station has a total of 16 beams, and is divided into two layers (layer A, layer B) in the vertical direction, for covering different height UEs, each layer has 8 The beam distribution of horizontal distribution, the beam identification auxiliary information is shown in Table 7:

Table 7, beam identification auxiliary information

In the seventh embodiment, the beam identification signal is transmitted in a time division frequency division code division combination manner, that is, differentiating different one or more dimensions of the time domain resource, the frequency domain resource, and the code domain resource occupied by the beam transmission Beam.

FIG. 18 is a schematic diagram of time-frequency resources occupied by each beam identification signal corresponding to the seventh embodiment of the present invention, and FIG. 18 is a schematic diagram showing time-frequency resources occupied by each beam identification signal of the HBS, and in the seventh embodiment, The 16 time-band resources of the 16-beam multiplexed beam-recognition signal of the high-frequency station HBS, that is, 4 beam-multiplexed 1 time-frequency resource transmission, the 4 beams need to be transmitted by mutually orthogonal sequences, so that the UE can Accurately identify different beams. The transmission period of the beam identification signal is a subframe.

It should be noted that the implementation process of distinguishing different beams by using the time-frequency code combination manner in the embodiment is only an optional embodiment, and other methods for transmitting different beam identification signals by using a time-frequency code combination method are applicable to Embodiments of the invention.

It should be noted that, in this embodiment, the manner of transmitting the different beam identification auxiliary information is performed, for example, by the system broadcast message broadcast transmission of the base station in the related art, and the RRC signaling of the base station or the relay node in the related art, the D2D network device Broadcast transmission, unicast transmission by D2D network equipment, information transmission of access point AP in IEEE system network, and transmission methods of different beam identification signals, such as frequency division method, code division method, time division code division method, frequency division Code division method, The time division frequency division combination method, the time division frequency division code division combination method, etc., an optional implementation manner is given, and the scheme formed by the combination of any other beam identification auxiliary information transmission method and beam identification signal transmission mode is also applicable. In the embodiment of the invention.

FIG. 19 is a schematic diagram of an application scenario corresponding to an eighth embodiment of the present invention. As shown in FIG. 19, in the eighth embodiment, it is assumed that the first network node is an LTE base station eNB, and the second network node is a relay node Relay, and It is assumed that the relay currently resides in the eNB subordinate network, and the beam identification auxiliary information is obtained by receiving the RRC signaling sent by the eNB, and beam identification is performed according to the beam identification auxiliary information. FIG. 20 is a schematic flowchart of an eighth embodiment of the present invention. As shown in FIG. 20, the method includes steps 2000-2002:

Step 2000: The eNB sends RRC signaling to the Relay, where the beam identification auxiliary information of the high frequency neighboring area is carried.

Because the capacity of the wireless backhaul link between the relay and the eNB is limited, in this embodiment, the eNB sends beam identification auxiliary information to the relay, and the relay measures and identifies the optimal beam of the high frequency station HBS, and accesses the high frequency station. The high-frequency network where the HBS is located, thereby achieving the purpose of offloading for the eNB. It should be noted that, in this embodiment, only the optional triggering reason for the relay to access the HBS is given, and any other reason is applicable, and details are not described herein again.

The content of the beam identification auxiliary information is the same as the content sent by the eNB to the UE in the second embodiment, and details are not described herein again.

Step 2001: The relay performs optimal beam identification and accesses the high frequency network.

The relay accesses the high frequency station HBS in the identity of the UE; the implementation process is identical to the identification of the optimal beam by the UE in step 502 and step 503 in the second embodiment, and the access process to the high frequency station HBS is completely consistent. , no longer repeat them here.

It should be noted that, in this embodiment, the relay obtains the beam identification auxiliary information through the RRC signaling sent by the eNB, and the manner in which any other relay obtains the beam identification auxiliary information is applicable to the embodiment of the present invention.

It should be emphasized that, after the relay is connected to the high-frequency network, the embodiment of the present invention does not limit whether the relay disconnects from the eNB, that is, after the relay accesses the high-frequency network, it may be in the form of carrier aggregation, or The form of the double link is simultaneously connected to the high frequency station HBS, eNB; or it can be composed only with the high frequency station HBS.

FIG. 21 is a schematic diagram of an application scenario corresponding to a ninth embodiment of the present invention. As shown in FIG. 21, in the ninth embodiment, a second network node is assumed to be a base station BS, and a wireless backhaul chain is expected to be established with an adjacent high frequency station. The road obtains beam identification auxiliary information by receiving the message sent by the first network node, and performs beam identification according to the beam identification auxiliary information; it is assumed that two high frequency stations HBS1, HBS2 are included in this embodiment. FIG. 22 is a schematic flowchart of a ninth embodiment of the present invention. As shown in FIG. 22, the method includes steps 2200 to 2202:

Step 2200: The first network node sends a message carrying the beam identification auxiliary information of the high frequency neighboring area to the base station BS.

At this time, the BS needs to establish a beam-based wireless backhaul link with the adjacent high-frequency station, and needs to acquire beam-related information of the adjacent high-frequency station, thereby selecting the high-frequency station and the most between the high-frequency station and the high-frequency station. Excellent beam direction.

In this embodiment, since the second network node that obtains the beam identification auxiliary information is a BS, the first network node may be any other network node that has an interface relationship with the BS, such as: another base station, a subordinate terminal, or an access point. The network element of the access network, such as the access point AP and the station STA, in the IEEE system; the core network side network element such as the MME, the S-GW, the P-GW, and the network element side network element such as OAM, EMS, NMS, etc.

The content of the beam identification auxiliary information is the same as the content sent by the eNB to the UE in the first embodiment, and details are not described herein again.

Step 2201: The BS performs high frequency station identification, optimal beam identification, and accesses a high frequency network, and establishes a wireless backhaul link with the high frequency station;

The BS accesses the high frequency station HBS1 as the UE. The implementation process is consistent with the UE's identification of the optimal beam in step 301 and step 302 in the first embodiment, and the access process to the high-frequency station HBS1, which is not described herein.

In this embodiment, the BS adopts the same procedure and method as the UE accesses the HBS in the identity of the UE, implements access to the high frequency station HBS1, and completes the configuration of the wireless backhaul link. The BS may also establish a wireless backhaul link with the HBS1 in any other manner. This embodiment focuses on the BS acquiring beam identification auxiliary information, and performs optimal beam identification according to the beam identification auxiliary information.

23 is a schematic structural diagram of a beam identification system according to an embodiment of the present invention. As shown in FIG. 23, the beam identification system includes at least a first network node 231 and a second network node 232.

The first network node 231 is configured to send one or a set of beam identification assistance information to the second network node 232; wherein the beam identification assistance information corresponds to one or a group of high frequency sites for the second Network node 232 indicates beam information required to access the high frequency station;

The second network node 232 is configured to acquire one or a set of the beam identification assistance information from the first network node 231 and identify an optimal beam of the high frequency station based on the obtained beam identification assistance information.

Optionally, the first network node includes one or more of the following network nodes: a base station, a relay, a D2D network user equipment, an AP of an IEEE system, an STA of an IEEE system, an ad hoc network device, and a network management side network. Yuan, core network side network elements, etc.

The link between the first network node and the second network node includes at least one of: an existing cellular communication network link (such as GSM, UMTS, CDMA95/CDMA2000, LTE, LTE-A system network, etc.), a high frequency network link , D2D network link, IEEE system network (such as WPAN system network, WLAN system network, WMAN system network, WRAN system network, etc.) links, self-organizing network links.

Optionally, the first network node sends the beam identification auxiliary information to the second network node by using one or more of the following methods: a broadcast message mode, a multicast message mode, and a unicast message mode.

The beam identification signal is a signal sequence sent by the high frequency station in each beam direction for the second network node to identify the optimal beam.

The method for transmitting the beam identification signal in the different beam directions includes at least one of the following methods: time division mode, frequency division mode, code division mode, time division code division combination mode, frequency division code division combination mode, time division frequency division combination mode, Time division frequency division code division method.

Some implementation details of the first network node and the second network node in the system can be found in the following embodiments. Further implementation details of the system can be found in the above embodiments.

The embodiment of the present invention further provides a first network node, as shown in FIG. 24, including:

The sending module 241 is configured to send one or a group of beam identification auxiliary information to another network node; the beam identification auxiliary information corresponds to one or a group of high frequency stations, and is used to indicate that the access is high to the another network node Beam information required by the frequency station.

Optionally, the first network node further includes:

a storage module, configured to save the beam identification auxiliary information;

The sending module 241 sends one or a group of beam identification auxiliary information to another network node, including:

The sending module 241 sends the beam identification auxiliary information saved by the storage module to the another network node by using a link with another network node.

Further implementation details of the first network node can be found in the above embodiments.

The first network node can be applied to the beam identification system shown in FIG.

The embodiment of the present invention further provides a second network node. As shown in FIG. 25, the second network node includes an obtaining module 251 and a processing module 252.

The acquiring module 251 is configured to acquire one or a group of beam identification auxiliary information, and optionally, the acquiring module acquires the beam identification auxiliary information by one or more of the following manners: reading a broadcast message, and receiving Multicast message, receiving unicast messages.

The processing module 252 is configured to identify an optimal beam of the high frequency station according to the beam identification auxiliary information obtained by the obtaining module 251, and optionally, the processing module according to the obtained high frequency station indicated in the beam identification auxiliary information The time domain, the frequency domain, and the sequence resource information occupied by the beamforming signal in each beam direction are respectively measured for the signal strength of each beam direction; the one beam with the highest signal strength is selected as the optimal beam; or, according to the signal A set of beams is selected as the optimal beam from high to low in order; or one or more beams that meet the predefined signal strength requirements are selected as the optimal beam.

Optionally, the obtaining module 251 is further configured to: initiate a request for requesting beam identification assistance information to the first network node.

Further implementation details of the second network node can be found in the above embodiments.

The second network node can be applied to the beam identification system shown in FIG.

The embodiment of the invention further provides a computer readable storage medium storing computer executable instructions for performing the beam identification method described above.

Industrial applicability

In the technical solution provided by the embodiment of the present invention, since the second network node obtains the beam identification auxiliary information required for the beam identification process, the range of detection in the access process is reduced, and the manner of accessing the high frequency station through blind detection is Compared, the complexity of the optimal beam identification is reduced, the downlink synchronization and the delay of the optimal beam identification process are reduced, and the access speed to the high frequency station is improved.

Claims

A beam identification method comprising:

The first network node sends one or a set of beam identification assistance information to the second network node; wherein the beam identification assistance information corresponds to one or a group of high frequency stations for indicating high access to the second network node Beam information required by the frequency station.
The beam identification method according to claim 1, wherein the transmitting, by the first network node, one or a group of beam identification auxiliary information to the second network node comprises:

Transmitting, by the first network node, the beam identification auxiliary information saved by the first network node to the second network node;

The link includes at least one of: a cellular communication network link, a high frequency network link, a device to device D2D network link, an Institute of Electrical and Electronics Engineers IEEE system network link, an ad hoc network link.
The beam identification method according to claim 1, wherein the transmitting, by the first network node, one or a group of beam identification auxiliary information to the second network node comprises:

The first network node sends beam identification auxiliary information to the second network node by using one or more of the following modes: a broadcast message mode, a multicast message mode, and a unicast message mode;

The broadcast message mode includes: the first network node broadcasting transmit beam identification auxiliary information to all second network nodes residing in the network or its coverage;

The multicast message mode includes: the first network node sending the same beam identification auxiliary information to a specific group of second network nodes;

The unicast message mode includes: the first network node sending beam identification auxiliary information to a specific second network node.
The beam identification method according to claim 3, wherein when the first network node is a base station, the transmitting, by the first network node, one or a group of beam identification assistance information to the second network node comprises:

The base station transmits beam identification auxiliary information to all the second network nodes residing in the own network by using a system broadcast message on the existing carrier; or the base station controls the RRC signaling by using the radio resource Transmitting beam identification assistance information to a specific one of the second network nodes; or, the base station grouping the second network nodes, assigning a group identity, and transmitting beam identification assistance information to the second network node in the specific packet;

When the first network node is a D2D device, the sending, by the first network node, one or a group of beam identification auxiliary information to the second network node includes:

The D2D device broadcasts beam-assisted identification information; or the D2D device is connected to the second network node by a D2D link, and sends beam-assisted identification information to the connected second network node;

When the first network node is an access point of the IEEE system, the sending, by the first network node, one or a group of beam identification auxiliary information to the second network node includes:

The access point of the IEEE system is connected to the second network node via an IEEE system communication link, and transmits beam-assisted identification information to the connected second network node.
The beam identification method according to any one of claims 1 to 4, wherein the beam identification assistance information comprises one or more of the following information:

Identification information of the high frequency station, working frequency bandwidth, number of high frequency station beams, spatial distribution of high frequency station beams, beam identification signal transmission mode in different beam directions, and beam identification signal transmission configuration information.
The beam identification method according to claim 5, wherein

The spatial distribution manner of the high-frequency station beam is spatially distributed by each of the subordinates of the high-frequency station, and includes one of the following distribution modes: horizontal distribution, vertical distribution, horizontal and vertical combination distribution;

The beam identification signal is: a signal sequence sent by the high frequency station in each beam direction for the second network node to identify an optimal beam;

The method for transmitting the beam identification signal in the different beam directions includes one of the following modes: time division mode, frequency division mode, code division mode, time division code division combination mode, frequency division code division combination mode, time division frequency division combination mode, time division Frequency division code division and combination method;

The transmission configuration information of the beam identification signal includes one or more of the following information: index information of each beam, a resource set of the beam identification signal transmitted by the high frequency station, a transmission period of the beam identification signal, and a high frequency station at each Time domain occupied by transmitting beam identification signals in the beam direction Resources, frequency domain resources, sequence resources.
The beam identification method according to claim 6, wherein

The time division manner includes: a manner of distinguishing different beam directions only by different time domain resources occupied by the transmission beam identification signal;

The frequency division mode includes: a method of distinguishing different beam directions only by different frequency domain resources occupied by the transmission beam identification signal;

The code division manner includes: a manner of distinguishing different beam directions only by using different beam identification signals;

The time division code combining manner includes: different ways of distinguishing different beam directions according to different beam identification signals used, and/or different time domain resources occupied by beam identification signals;

The frequency division code division combining manner includes: different ways of different beam directions according to different beam identification signals used, and/or different frequency domain resources occupied by beam identification signals;

The time division frequency division combining manner includes: distinguishing different beam directions by different time domain resources occupied by the beam identification signal, and/or different frequency domain resources occupied by the beam identification signal;

The time division frequency division code combination method includes: a method for distinguishing different beam directions according to one or more of the following parameters: a time domain resource used for transmitting a beam identification signal, a frequency domain resource, and a used Beam identification signal.
The beam identification method according to claim 1 or 2, wherein the first network node comprises one or more of the following network nodes: a base station, a relay, a D2D network user equipment, an access point AP of an IEEE system The STA of the IEEE system, the self-organizing network device, the network element side network element, and the core network side network element;

The second network node is a network element device having a capability of accessing a high frequency network, including a terminal, or a relay node, or a base station.
A beam identification method comprising:

The second network node acquires one or a set of beam identification auxiliary information;

The second network node identifies an optimal wave of the high frequency station according to the obtained beam identification auxiliary information bundle.
The beam identification method according to claim 9, wherein the identifying, by the second network node, the optimal beam of the high frequency station according to the obtained beam identification auxiliary information comprises:

The second network node transmits the time domain, the frequency domain, and the sequence resource information occupied by the beam identification signal in each beam direction according to the obtained high frequency station indicated in the beam identification auxiliary information, and respectively respectively signals for each beam direction Intensity is measured;

Select one beam with the highest signal strength as the optimal beam; or select a group of beams as the optimal beam according to the order of signal strength from high to low; or select one or more beams that meet the predefined signal strength requirements as the optimal beam. .
The beam identification method according to claim 9 or 10, wherein the second network node acquires the beam identification auxiliary information by one or more of the following methods: reading a broadcast message, receiving a multicast message, and receiving Unicast message.
The beam identification method according to claim 11, wherein the acquiring, by the second network node, the beam identification auxiliary information comprises one or more of the following manners:

The second network node reads a system broadcast message acquisition under a cellular communication network;

The second network node receives a multicast message of a base station in a cellular communication network;

Receiving, by the second network node, radio resource control RRC signaling sent by a base station in a cellular communication network;

The second network node listens to the broadcast message sent by the surrounding D2D network user equipment in the device-to-device D2D network;

The second network node receives through a D2D link;

The second network node is received by an Institute of Electrical and Electronics Engineers IEEE system communication link.
The beam identification method according to claim 9 or 10, wherein the second network node is a network element device having a capability of accessing a high frequency network, including a terminal, or a relay node, or a base station;

The acquiring, by the second network node, the beam identification auxiliary information includes:

The second network node acquires beam identification auxiliary information through the current network.
A beam identification system includes: a first network node and a second network node;

The first network node is configured to send one or a set of beam identification assistance information to the second network node; the beam identification assistance information corresponds to one or a group of high frequency stations for the second network node Indicates the beam information required to access the high frequency station;

The second network node is configured to acquire one or a group of the beam identification auxiliary information from the first network node, and identify an optimal beam of the high frequency station according to the obtained beam identification auxiliary information.
The beam identification system of claim 14, wherein the first network node comprises one or more of the following network nodes: base station, relay, device-to-device D2D network user equipment, Institute of Electrical and Electronics Engineers IEEE The access point AP of the system, the STA of the IEEE system, the self-organizing network device, the network element side network element, and the core network side network element.
The beam identification system according to claim 14, wherein said second network node is a network element device having access to a high frequency network capability, including a terminal, or a relay node, or a base station.
The beam identification system according to any one of claims 14 to 16, wherein the transmitting, by the first network node, one or a set of beam identification assistance information to the second network node comprises:

Transmitting, by the first network node, the beam identification auxiliary information saved by the first network node to the second network node;

The link between the first network node and the second network node includes at least one of: a cellular communication network link, a high frequency network link, a D2D network link, an IEEE system network link, an ad hoc network link.
The beam identification system according to any one of claims 14 to 16, wherein the first network node transmits beam identification assistance information to the second network node by one or more of the following methods: a broadcast message mode, Multicast message mode and unicast message mode.
The beam identification system according to any one of claims 14 to 16, wherein the beam identification assistance information comprises one or more of the following information:

Identification information of the high frequency station, working frequency bandwidth, number of high frequency station beams, spatial distribution of high frequency station beams, beam identification signal transmission mode in different beam directions, and beam identification signal transmission configuration information.
A beam identification system according to any one of claims 14 to 16, wherein said The two network nodes include:

An acquiring module, configured to acquire the beam identification auxiliary information by one or more of the following methods: reading a broadcast message, receiving a multicast message, and receiving a unicast message;

The processing module is configured to: according to the time domain, the frequency domain, and the sequence resource information occupied by the high frequency station in the beam identification auxiliary information obtained by the obtaining module, transmitting the beam identification signal in each beam direction, respectively The signal strength of the beam direction is measured; one beam with the highest signal strength is selected as the optimal beam; or a group of beams is selected as the optimal beam according to the signal strength from high to low; or, the selection meets the requirements of the predefined signal strength. One or more beams are used as the optimal beam.
The beam identification system of claim 20, wherein the acquisition module is further configured to initiate a request to the first network node to request beam identification assistance information.
A network node, comprising: a transmitting module, configured to send one or a group of beam identification auxiliary information to another network node; the beam identification auxiliary information corresponding to one or a group of high frequency stations for The network node indicates the beam information required to access the high frequency station.
The network node according to claim 22, wherein said network node comprises one or more of the following network nodes: base station, relay, device-to-device D2D network user equipment, and Institute of Electrical and Electronics Engineers IEEE system Incoming AP, site STA of the IEEE system, self-organizing network device, network management side network element, and core network side network element.
A network node, including:

Obtaining a module, configured to obtain one or a group of beam identification auxiliary information;

And a processing module, configured to identify an optimal beam of the high frequency station according to the beam identification auxiliary information obtained by the acquiring module.
The network node according to claim 24, wherein the acquiring module acquiring one or a group of beam identification auxiliary information comprises:

The acquiring module acquires the beam identification auxiliary information by one or more of the following methods: reading a broadcast message, receiving a multicast message, and receiving a unicast message.
The network node according to claim 24, wherein the processing module identifies the optimal beam of the high frequency station according to the beam identification auxiliary information obtained by the obtaining module, including:

And the processing module performs time domain, frequency domain, and sequence resource information occupied by the beam identification signal in each beam direction according to the beam identification auxiliary information obtained by the acquiring module, respectively, for each beam direction The signal strength is measured; one beam with the highest signal strength is selected as the optimal beam; or one set of beams is selected as the optimal beam in order of high to low signal strength; or one or more selected to meet the predefined signal strength requirements The beams are used as the optimal beam.
The network node of claim 24, wherein the acquisition module is further configured to initiate a request to the another network node for requesting beam identification assistance information.
The network node according to any one of claims 24 to 27, wherein the network node is a network element device having access to a high frequency network, including a terminal, or a relay node, or a base station.