CN107733501A

CN107733501A - Wave beam management method and device

Info

Publication number: CN107733501A
Application number: CN201610659046.3A
Authority: CN
Inventors: 杨立
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2016-08-10
Filing date: 2016-08-10
Publication date: 2018-02-23
Also published as: WO2018028426A1

Abstract

The invention provides a kind of wave beam management method and device.Wherein, this method includes：Establish and space/time-frequency in maintenance and target transmission receiving point TRP between a plurality of object beam tracks synchronously；If exception occurs for the wave beam in the TRP of source, after the order of master control anchor base station transmission is received, on the object beam in beam switchover to target TRP out of the source TRP.By the present invention, solve the problems, such as that correlation technique medium wave interfascicular mobile handoff time larger caused UE data throughputs are relatively low, reached the technique effect of mobile handoff time between reduction wave beam.

Description

Beam management method and device

Technical Field

The present invention relates to the field of communications, and in particular, to a method and an apparatus for beam management.

Background

In a New Radio access (New RAT/Radio, abbreviated to NR) system of the future (3rd Generation Partnership Project (abbreviated to 3GPP 5G), utilization and operation of high-frequency band Radio carrier resources will play an increasingly important role, and wider high-frequency carrier resources can be fully aggregated and utilized by means of carrier aggregation, tight coupling multiple connections and the like, so as to improve capacity and throughput performance of the NR system. As shown in fig. 1, under the wide coverage of a low frequency macro base station cell, an operator may perform capacity enhancement on a part of hot spot Hotspot regions through a high frequency (mmWave) small base station cell. Unlike the coverage of the conventional Omni-Directional or Sector cell, in order to increase the uplink and downlink wireless coverage and channel performance, the TX/RX side generally needs to perform Beamforming operation, that is, transmit/receive beams directionally by using the multi-antenna phase technique, so as to converge the transmit power and reduce interference. The Cluster (Cluster) of Transmit Receive Points (TRP) in fig. 1 transmits signals in the form of multiple Beams (> 1).

In fig. 1, a deployment manner of a small cell of a Beamforming (BF) high-frequency communication base station may be mapped to a data transmission architecture in which the high-frequency and low-frequency communication base stations are tightly coupled and multi-connected as shown in fig. 2: in fig. 2, a thin arrow line of an air interface between a base station and a User Equipment (UE) in fig. 2 represents Uu interface control plane signaling, and a thick arrow line represents User plane data. A low frequency macro base station serving cell provides basic wireless coverage, a high frequency cell in BF mode provides data offloading, and when a UE moves within the same macro base station serving cell, handover between high frequency micro cells or data transmission of more connections may occur.

Taking the past Universal Mobile telecommunications system/Long Term Evolution (UMTS/LTE) UMTS/LTE system as an example, since the UMTS/LTE UMTS/UMTS system mainly works in a low frequency band (<6GHz), a Transmit Receive Point (Transmit Receive Point, TRP) corresponding to a base station usually adopts an Omni-Directional and Sector (Sector) mode Transmit and Receive mode, so that a corresponding downlink common channel/signal has a wider coverage area, that is, when a user equipment UE enters a specific radius with the Transmit Receive Point TRP as a center of a circle, the downlink common channel/signal can be received in any time/place/direction, so as to achieve basic operations such as downlink time-frequency synchronization, cell discovery, system message reading, uplink random access, pilot measurement and the like.

Since the Path loss (Path loss) and attenuation of the high frequency band channel are quite serious, in order to implement long-distance coverage and space/time frequency signal interference isolation with small transmission power, the NR high frequency base station TRP usually adopts a Beamforming transmit-receive mode, so that the corresponding downlink common channel/signal has a narrower coverage area (the corresponding serving cell is narrower), that is, when the UE enters a specific radius with the TRP as a center, the downlink common channel/signal can be received only through space Search (Spatial Search) in a specific time/place/direction, so as to implement the above basic functions. With the movement of the UE in the horizontal and vertical directions, the UE is easily out of coverage of Beams, which is called space/time frequency out-of-step (assuming that TRP/UE cannot realize fast Beam tracking with each other), and after the space/time frequency out-of-step, the UE is equivalent to the UE moving to a weak coverage area, and cannot effectively maintain uplink and downlink time frequency synchronization/uplink random access/high-efficiency data transmission, so the UE must re-search and measure a suitable cell/Beam and the like as soon as possible to recover the space/time frequency synchronization state.

Assuming that there is only one beamforming chain (RF chain) within the TRP node, the TRP transmits any downlink channel/signal in a periodic circular sweep. When the UE successfully tracks and resides in a serving cell of the high frequency Beamforming, if there is a data transmission requirement, the UE needs to establish and maintain a Radio Link (RL) with the TRP first, and enter a Radio Resource Control connection (RRC _ CONNECTED) mode. And then the TRP allocates a special time-frequency resource for the UE, and transmits uplink and downlink data blocks based on a scheduling mode.

In the downlink direction, on one hand, the UE needs to keep the best tracking State of space/time/frequency through the downlink common synchronization signal transmitted by the TRP, and on the other hand, the UE needs to measure and feed back Channel State Information (CSI) through the downlink dedicated reference signal transmitted by the TRP.

In the uplink direction, the TRP needs to keep the best tracking state of space/time frequency through the uplink common synchronization signal transmitted by the UE, and on the other hand, the TRP needs to measure the CSI through the uplink dedicated reference signal transmitted by the UE.

In the meaning, the uplink and downlink dedicated reference signals are used for measuring and/or demodulating the dedicated channel, but whether the dedicated reference signals can serve the purpose of Beam tracking, namely, whether the UE can only monitor and receive the downlink dedicated reference signals transmitted by TRP in the downlink direction or not is judged to keep the optimal tracking state of the downlink space, time frequency and time frequency; in the uplink direction, whether the TRP can only monitor and receive the uplink special reference signal transmitted by the UE is kept in the best tracking state of uplink space/time frequency. When Radio Link Failure (RLF) occurs (for example, block or hidden Failure is encountered), the uplink and downlink of the UE automatically enter a space/time out-of-sync sub-state (still in the RRC _ CONNECTED mode), at this time, the UE still needs to continue to monitor the downlink dedicated reference signal of the source serving TRP near the space/time out-of-sync point, and the source TRP still needs to continue to monitor the uplink dedicated reference signal near the space/time out-of-sync point, so that the UE tries to quickly recover the beam sync sub-state between the source serving TRP and the UE. If the UE cannot recover the beam synchronization sub-state within a specific time, the UE needs to exit the RRC _ CONNECTED state first, and re-monitor the downlink common channels/signals of the receiving source serving TRP and other adjacent TRPs, at this time, the UE may camp in the serving cells of other adjacent TRPs, and then re-establish and maintain the dedicated RL.

Taking the following direction as an example, when the TRP transmits the BF synchronization training signal, it starts to transmit according to a specific discrete angle (e.g., the rule of 0, 30, 60, 90, 120 …, 360 degrees), and the UE may also receive according to the specific discrete angle orientation. After the initial coarse synchronization training, the TRP and the UE can approximately determine the optimal discrete angle of the other party, and then can further enter a fine synchronization training stage, so that the TRP and the UE can more accurately determine the continuous angle of the other party (the horizontal angle adjustment granularity of the fine synchronization training is smaller than that of the previous loop scan transmission), and the fine synchronization training minimizes the path loss Pathloss. Then, with the movement of the UE, the TRP and the UE need to continuously fine-tune the transmitting and receiving angles according to the BF synchronous training signal transmitted by the other side. The above process is shown in fig. 3:

the fine synchronization training is an optional optimization function realized locally based on communication node hardware, after the fine synchronization training is completed, the TRP and the UE side can ensure the best Radio Resource Management (RRM) quantity result and the most reliable measurement precision of a Beam interference signal (Beam Reference signal, abbreviated as BRS) and the best receiving and demodulating performance result of a Radio Link (RL) proprietary signal, so that the mobile terminal can be in the best RRM measurement mode and the data transmission mode, and at this time, the TX-end signal transmission efficiency and the RX-end received signal-to-noise ratio are the largest; otherwise, according to simulation, if the precision result of the space/time frequency synchronization training is not enough, the receiving signal-to-noise ratio is reduced, the TRP and the UE cannot be in the best RRM measurement mode and data transmission mode, and even worse, the TRP and the UE have space/time frequency synchronization loss, and the TRP and the UE can only be in the worst RRM measurement mode and data transmission mode. Therefore, in order to ensure the quality and accuracy of RRM measurement of the UE on the downlink reference signal of the beamforming communication base station, the UE must establish and maintain a "BF coarse (fine) synchronization sub-state" for the Beams governed by the target BF communication base station, otherwise the RRM measurement result obtained by the measurement is inaccurate and unreliable.

In the moving process of the UE in the multi-connection data transmission mode, the anchor communication base station in the non-BF mode generally needs to select and configure the best target BF mode shunting base station TRP for the UE based on the RRM measurement report result of the UE, or perform mobile handover between TRPs, or add and configure more TRPs, and perform data transmission for more connections. According to the LTE prior art RRM measurement evaluation model, as shown in fig. 4: for a specific measurement object (LTE target cell or specific Beam under TRP) and a measurement evaluation quantity, a is a preliminary measurement sampling value measured by the UE according to internal implementation, B is an intermediate measurement sampling value obtained by the UE after being filtered by a Layer 1filter (Layer 1Filtering) module Layer 1 in a certain sampling period, C is a dynamic analysis evaluation value obtained by the UE after being filtered by a Layer 3filter (Layer 3Filtering) module Layer 3 in a certain sampling period, C' is a comparison analysis evaluation value (having the same measurement evaluation dimension as C), and D is a content result value reported by the UE in a MeasurementReport measurement report Message (MR). In the old RRM measurement model, behaviors and parameter usage modes of the layer 3filtering processing module and the Evaluation and reporting Criteria (Evaluation of reporting Criteria) module are standardized by the LTE protocol, and related configuration parameters are from configuration signaling of Radio Resource Control (RRC) air interface messages.

The current LTE protocol has defined multiple RRM measurement Event types for different mobile handover and multi-connection configuration operation purposes, such as Event a1(Event a1) Event representation: the UE dynamically analyzes an evaluation value result (processed by layer 3filtering) of the measurement of the Reference Signal Receiving Power (RSRP) or the Reference Signal Receiving Quality (RSRQ) of the pilot Signal strength of the current LTE serving cell (which can be one or more) and the Reference Signal Receiving Quality (RSRQ), and the result is better (a nerve buffer offset value Hys is arranged in the middle) compared with a threshold value Thresh configured by RRC air interface signaling by the source base station eNB and lasts for more than a trigger time TTT (time to trigger) of an event, so that the UE triggers a local generation A1 event to trigger MR reporting; otherwise the a1 event cannot be generated. The specific meaning of various other Event events may refer to the LTE protocol. The old RRM measurement model and definition described above has the following characteristics: for a certain RRM measurement event, only a certain determined source Cell and/or a certain determined neighbor Cell (Neighbour Cell) are associated, forming a 1-to-1 Cell measurement versus evaluation Pair.

For the shunted micro base station TRP in the beamforming working mode, the working characteristic modes of multiple Beams (>1) governed inside the shunted micro base station TRP are greatly different from those of multiple LTE serving cells governed in the conventional LTE base station, as described above. If the RRM Measurement and evaluation mechanism in the LTE prior art is used, when the RRM Measurement result corresponding to the target service Beam governed by a certain target TRP2 is significantly better than the source service Beam governed by a certain source TRP1, the UE will probably trigger a corresponding certain mobility event, and Report the mobility event to the anchor point control macro base station through a Measurement Report (MR) message. Thereafter, the anchor point control macro base station will let the UE establish and maintain the radio link RL with the target service Beam governed by the target TRP2 (because the link quality of the target service Beam is better) through the RRC reconfiguration message, and delete the RL of the source service Beam governed by the source TRP1 (because the link quality of the source service Beam is worse) before the UE, as shown in fig. 5. The UE is originally in a dual-connection data transmission state of a main base station macro service cell MeNB and a certain source service Beam of TRP1, and is switched by an anchor point to be reconfigured to the dual-connection data transmission state of the MeNB and the certain Beam of TRP2 due to movement of the UE.

Since multiple serving Beams are typically configured and activated within each of the split base stations TRP (scanning towards different physical locations for signal coverage in a specific manner), and the UE performs the above-mentioned coarse (fine) spatial time-frequency tracking synchronization attempt and the associated RRM measurement on different Beams to establish and maintain the "BF coarse (fine) synchronization sub-state" so as to obtain a more precise and reliable RRM measurement result, the UE may frequently perform a Beam switching (Beam Switch) mobile switching operation within the same TRP or between different TRPs. That is, in the same TRP internal scene, from a source service Beam1 with a bad signal, the UE is allowed to locally decide and automatically switch to another target Beam2 with a better signal, and this process requires the UE to consume a certain synchronous switching transition time, so that after the "BF coarse (fine) synchronization sub-state" is established and maintained with the target service Beam2, the suspended data transmission on the RL can be resumed; under the scene among different TRPs, a source Beam1 with a bad signal in a source TRP1 is switched to a target Beam2 with a better signal in a target TRP2 by an RRC command, the process not only needs a certain synchronous switching transition time consumed by UE, but also needs to execute switching preparation and coordination processes between the source service TRP1 and the target service TRP2, and after the UE and the target service Beam2 establish and maintain and complete a 'BF coarse (fine) synchronous sub-state' and the UE and the target service TRP2 establish and maintain and complete a new RL, suspended data transmission on the source RL can be recovered on the new RL.

The conventional inter-Beam mobile handover method described above indicates that data transmission of the UE is forced to be suspended for a period of time, and the duration of the interruption depends on the total time for the UE and the target service TRP/Beam to establish and maintain the complete "BF coarse (fine) synchronization substate" and the new RL with the target TRP.

Aiming at the problem of low UE data throughput rate caused by long inter-beam mobile switching time in the related art, no effective solution is provided.

Disclosure of Invention

The embodiment of the invention provides a beam management method and a beam management device, which are used for at least solving the problem of low UE data throughput rate caused by longer time for mobile switching between beams in the related technology.

According to an embodiment of the present invention, there is provided a beam management method including: establishing and maintaining space/time frequency tracking synchronization between a plurality of target beams in a target transmitting and receiving point TRP; if the beam in the source TRP is abnormal, after receiving a command sent by a main control anchor point base station, switching the beam in the source TRP to a target beam in the target TRP.

Alternatively, if no abnormality occurs in the beam within the source TRP and the target beam within the target TRP satisfies a specified condition, the target beam is additionally added and activated for use.

Optionally, before establishing and maintaining the space/time-frequency tracking synchronization with the target beam in the target transmission reception point TRP, the method further includes: acquiring first optimal beam information with the best measurement result and second optimal beam information with the second best measurement result in a plurality of target TRPs according to a Radio Resource Management (RRM) measurement evaluation model; sending the first optimal beam information and the second optimal beam information to a master anchor base station through a Measurement Report (MR)/Radio Resource Control (RRC) message, so that the master anchor base station performs resource pre-configuration and beam association creation on downlink and uplink beams in the target TRP; wherein the first optimal beam information and the second optimal beam information each include: the method comprises the steps of working frequency point bandwidth, physical logic identification of wave beams and azimuth characteristic values of a service cell governed by the TRP.

Optionally, the establishing and maintaining the space/time frequency tracking synchronization with the target beam in the target transmission reception point TRP includes: when the target TRP is a source TRP and the wave beam to be switched or added is a first optimal wave beam, establishing and maintaining space/time frequency tracking synchronization with a second optimal wave beam in the source TRP, wherein the second optimal wave beam is in a state of being temporarily inactivated for use; or, when the target TRP is a TRP except a source TRP, establishing and maintaining space/time frequency tracking synchronization with a first optimal beam in the target TRP, wherein the first optimal beam is in a state of being temporarily not activated for use; or when the target TRP is a TRP except a source TRP, establishing and maintaining space/time frequency tracking synchronization with a second optimal beam in the target TRP, wherein the second optimal beam is in a state of being temporarily not activated for use.

Optionally, when the target TRP is a TRP other than the source TRP, establishing and maintaining and shunting an additional radio link RL which is deactivated between the base stations.

Optionally, the switching from the beam within the source TRP to the target beam within the target TRP comprises: when the target TRP is a source TRP and a current serving beam is a first optimal beam, after a command sent by a main control anchor point base station is received, switching from the first optimal beam of the source TRP to a second optimal beam in the source TRP; or, when the target TRP is a TRP other than a source TRP, after receiving a command sent by a master anchor base station, switching from a first optimal beam of the source TRP to a first optimal beam within the target TRP; or, when the target TRP is a TRP except a source TRP, after a command sent by a main control anchor base station is received, switching from a first optimal beam of the source TRP to a second optimal beam in the target TRP.

Optionally, the additionally adding and activating use of the target beam comprises: when the target TRP is a source TRP and a current serving wave beam is a first optimal wave beam, after a command sent by a main control anchor point base station is received, keeping the first optimal wave beam of the source TRP unchanged, and adding and activating to use a second optimal wave beam in the source TRP; or, when the target TRP is a TRP other than the source TRP, after receiving a command sent by the master anchor base station, keeping the first and second optimal beams of the source TRP unchanged, and adding and activating the use of the first and second optimal beams in the target TRP.

Optionally, when fast switching is performed from the first best beam of the source TRP to or additionally adding a first best beam within the target TRP, or switching is performed from the first best beam of the source TRP to or additionally adding a second best beam within the target TRP, the method further includes: an additional RL between base stations is activated and offloaded, wherein the RL is established in advance and is in a deactivated state.

Optionally, after switching from a beam within the source TRP to a target beam within the target TRP, further comprising: maintaining a beam within the source TRP such that the beam is in a normal state.

Optionally, the anomaly comprises: the method comprises the steps that a hardware used for receiving and sending beams by a shunting base station TRP or user equipment UE fails, the out-of-step sub-state occurs in the space of uplink and downlink beams or time frequency of the current service, and the signal intensity or quality of radio resource management RRM is lower than a preset threshold value.

According to another embodiment of the present invention, there is also provided a beam management method including: judging whether the wave beam in a source sending receiving point TRP is abnormal or not; if the wave beam in the source TRP is abnormal, indicating User Equipment (UE) to switch from the wave beam in the source TRP to a target wave beam in a target TRP; if the beam in the source TRP is not abnormal and the target beam in the target TRP meets the specified condition, indicating the UE to additionally add and activate the target beam; wherein the target beam is in a state of established and maintained spatial/time-frequency tracking synchronization.

According to another embodiment of the present invention, there is provided a beam management apparatus including: the system comprises an establishing module, a receiving module and a processing module, wherein the establishing module is used for establishing and maintaining space/time frequency tracking synchronization between a plurality of target beams in a target transmitting and receiving point TRP; and the switching module is used for switching the beam in the source TRP to a target beam in the target TRP after receiving a command sent by a main control anchor point base station if the beam in the source TRP is abnormal.

Optionally, the apparatus further comprises: and the adding module is used for additionally adding and activating the target beam when the beam in the source TRP is not abnormal and the target beam in the target TRP meets the specified condition.

Optionally, the apparatus further comprises: the acquisition module is used for acquiring first optimal beam information with the best measurement result and second optimal beam information with the second best measurement result in a plurality of target TRPs according to a radio resource management RRM measurement evaluation model before establishing and maintaining space/time-frequency tracking synchronization with target beams in the target transmission receiving points TRP; a sending module, configured to send the first optimal beam information and the second optimal beam information to a master anchor base station through a measurement report MR/radio resource control RRC message, so that the master anchor base station performs resource pre-configuration and beam association creation on downlink and uplink beams in the target TRP; wherein the first optimal beam information and the second optimal beam information each include: the method comprises the steps of working frequency point bandwidth, physical logic identification of wave beams and azimuth characteristic values of a service cell governed by the TRP.

Optionally, the establishing module includes: a first establishing unit, configured to establish and maintain spatial/time-frequency tracking synchronization with a second optimal beam in a source TRP when the target TRP is the source TRP and a beam to be switched or added is a first optimal beam, where the second optimal beam is in a state where the second optimal beam is not activated for use temporarily; or, a second establishing unit, configured to establish and maintain spatial/time-frequency tracking synchronization with a first optimal beam within the target TRP when the target TRP is a TRP other than the source TRP, where the first optimal beam is in a state where it is temporarily not activated for use; or, a third establishing unit, configured to establish and maintain spatial/time-frequency tracking synchronization with a second best beam within the target TRP when the target TRP is a TRP other than the source TRP, where the second best beam is in a state where it is not activated for use temporarily.

Optionally, the establishing module further includes: and a fourth establishing unit, configured to establish and maintain and offload an additional radio link RL that is deactivated between base stations when the target TRP is a TRP other than the source TRP.

Optionally, the switching module includes: a first switching unit, configured to switch, when the target TRP is a source TRP and a currently serving beam is a first optimal beam, from the first optimal beam of the source TRP to a second optimal beam within the source TRP after receiving a command sent by a master anchor base station; or, when the target TRP is a TRP other than the source TRP, after receiving a command sent by the master anchor base station, switching from the first optimal beam of the source TRP to the first optimal beam within the target TRP; or, when the target TRP is a TRP other than the source TRP, after receiving a command sent by the master anchor base station, switching from the first optimal beam of the source TRP to the second optimal beam within the target TRP.

Optionally, the adding module includes: a first adding unit, configured to, when the target TRP is a source TRP and a currently serving beam is a first optimal beam, after receiving a command sent by a master anchor base station, keep the first optimal beam of the source TRP unchanged, and add and activate to use a second optimal beam in the source TRP; or, when the target TRP is a TRP other than the source TRP, after receiving a command sent by the master anchor base station, keeping the first and second optimal beams of the source TRP unchanged, and adding and activating use of the first and second optimal beams in the target TRP.

Optionally, the apparatus further comprises: an activation module, configured to activate and offload an additional RL between base stations when switching from the first optimal beam of the source TRP to or additionally adding a first optimal beam within the target TRP, or switching from the first optimal beam of the source TRP to or additionally adding a second optimal beam within the target TRP, wherein the RL is established in advance and is in a deactivated state.

Optionally, the apparatus further comprises: a maintaining module for maintaining the beam within the source TRP to be in a normal state after switching from the beam within the source TRP to a target beam within the target TRP.

According to another embodiment of the present invention, there is also provided a beam management apparatus including: the judging module is used for judging whether the wave beam in the TRP of the source sending receiving point is abnormal or not; the first indication module is used for indicating the UE to switch from the beam in the source TRP to the target beam in the target TRP when the beam in the source TRP is abnormal; a second indicating module, configured to indicate the UE to additionally add and activate the target beam when the beam within the source TRP is not abnormal and the target beam within the target TRP satisfies a specified condition; wherein the target beam is in a state of established and maintained spatial/time-frequency tracking synchronization.

According to still another embodiment of the present invention, there is also provided a storage medium. The storage medium is configured to store program code for performing the steps of:

establishing and maintaining space/time frequency tracking synchronization between a plurality of target beams in a target transmitting and receiving point TRP; if the beam in the source TRP is abnormal, after receiving a command sent by a main control anchor point base station, switching the beam in the source TRP to a target beam in the target TRP.

According to the invention, the space/time frequency tracking synchronization between a plurality of target beams in the TRP is established and maintained; if the beam in the source TRP is abnormal, after receiving a command sent by a main control anchor point base station, switching the beam in the source TRP to a target beam in the target TRP. That is, the invention solves the problem of low UE data throughput rate caused by large inter-beam mobile switching time in the related technology by establishing and maintaining the beam management method of space/time-frequency tracking synchronization between a plurality of target beams in a target sending receiving point TRP before the beam in a source TRP is abnormal or before the beam in the source TRP is not abnormal and the target beam in the target TRP meets the specified conditions, and achieves the technical effect of reducing the inter-beam mobile switching time.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

fig. 1 is a schematic diagram illustrating Beamforming operation of a high-frequency small cell in the related art;

fig. 2 is a diagram of a data transmission architecture in which a high-frequency and low-frequency communication base station makes multiple connections through tight coupling in the related art;

FIG. 3 is a diagram illustrating a procedure from "coarse synchronization training" to "fine synchronization training" in the related art;

fig. 4 is a model of LTE RRM measurement evaluation in the related art;

fig. 5 is a diagram illustrating a handover between a source/target TRP in dual connectivity data transmission by a UE in the related art;

fig. 6 is a flow chart of a beam management method according to an embodiment of the present invention;

fig. 7 is a schematic diagram illustrating a seamless handover between source/target beams in dual connectivity data transmission by a UE according to an embodiment of the present invention;

fig. 8 is a schematic diagram (one) of a beam management method according to an embodiment of the present invention;

fig. 9 is a schematic diagram (two) of a beam management method according to an embodiment of the present invention;

fig. 10 is a schematic diagram (three) of a beam management method according to an embodiment of the present invention;

fig. 11 is a block diagram of a beam management apparatus according to an embodiment of the present invention;

fig. 12 is a block diagram (one) of the structure of a beam management apparatus according to an embodiment of the present invention;

fig. 13 is a block diagram of the structure of a beam management apparatus according to an embodiment of the present invention (ii);

fig. 14 is a block diagram (three) of the structure of a beam management apparatus according to an embodiment of the present invention;

fig. 15 is a block diagram (iv) of the structure of a beam management apparatus according to an embodiment of the present invention;

fig. 16 is a block diagram (v) of the structure of a beam management apparatus according to an embodiment of the present invention;

fig. 17 is a block diagram (six) of the structure of a beam management apparatus according to an embodiment of the present invention;

fig. 18 is a block diagram (seventh) of the structure of a beam management apparatus according to an embodiment of the present invention;

fig. 19 is a block diagram (eight) of the structure of a beam management apparatus according to an embodiment of the present invention;

fig. 20 is a flow chart of another beam management method according to an embodiment of the present invention;

fig. 21 is a block diagram of another beam management apparatus according to an embodiment of the present invention.

Detailed Description

The invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

Example 1

In this embodiment, a beam management method is provided, and fig. 6 is a flowchart of a beam management method according to an embodiment of the present invention, as shown in fig. 6, the flowchart includes the following steps:

step S602, establishing and maintaining space/time frequency tracking synchronization between a plurality of target beams in a target transmitting and receiving point TRP;

step S604, if the beam in the source TRP is abnormal, after receiving the command sent by the main control anchor point base station, switching the beam in the source TRP to the target beam in the target TRP;

optionally, in this embodiment, synchronization between space/time frequency tracking and multiple target beams in the target transmission reception point TRP is established and maintained; if the beam in the source TRP is abnormal, after receiving a command sent by a main control anchor point base station, switching the beam in the source TRP to a target beam in the target TRP. That is to say, in this embodiment, by establishing and maintaining a beam management method of synchronizing with space/time-frequency tracking between multiple target beams in a target transmission and reception point TRP before a beam in a source TRP is abnormal, a problem of low UE data throughput rate caused by a long inter-beam mobile handover time in the related art is solved, and a technical effect of reducing the inter-beam mobile handover time is achieved.

The present embodiment will be described below with reference to specific examples.

The main scenario solved by the present embodiment is shown in fig. 2: a Radio Bearer (SRB for short) for RRC control Signaling and a plurality of user plane Data bearers (drb (s)) have been established by a UE and a non-BF mode master anchor base station (which may be an MeNB or NR base station node). The main control anchor base station and a plurality of shunting base station TRP nodes (mainly deployed at high frequency, but not excluding the condition that middle and low frequency base stations apply BF operation) in BF mode are connected with each other through a standardized interface (which can be LTE X2 or NR Xnew interface) between communication base stations, so that DRB(s) user data can be subjected to uplink and downlink bypass user data shunting and parallel multi-connection data transmission.

Before the UE and any BF mode offload base station TRP establish an RL (i.e., the UE has not entered the multi-connection data transmission mode), the master anchor base station configures the UE with relevant measurement parameters through RRC signaling, and the UE, based on these parameters, performing downlink space/time frequency tracking and synchronization and downlink RRM measurement on all or a plurality of Beams (>1) governed by a target BF shunting base station TRP, namely, the UE needs to perform downlink space/time frequency synchronization training and downlink time frequency synchronization attempt on Beams first, through the process of downlink beam training, the optimal emission angle of a common downlink channel/signal (including a downlink space/time frequency synchronization training signal, a BRS pilot signal, a system broadcast message signal and the like) of a target TRP and the optimal receiving angle of the UE are tried to be found, then downlink RRM measurement is carried out, and accurate RRM measurement results corresponding to each candidate service beam are obtained.

The UE performs an RRM measurement evaluation operation according to the RRM measurement evaluation model illustrated in fig. 4 or other enhanced RRM evaluation models, samples and records the RRM measurement result (such as the sampled signal strength or quality of the BRS pilot) corresponding to each entry target candidate service Beam, and then analyzes and evaluates the first optimal Beam1 and the second optimal Beam2 in each target candidate service TRP.

The UE needs to report, by measuring and reporting MR or other RRC related messages, first optimal Beam1 and second optimal Beam2 related information in multiple target candidate service TRPs of the master anchor base station, including but not limited to a working frequency bandwidth of the TRP, a physical logic identifier, a high-level logic identifier, a physical logic identifier of Beams, and an orientation feature value.

Based on the RRM measurement information reported by the UE, the master anchor base station performs the following specific operations:

through RRC message (re) configuration and command: the UE and the first best Beam1 within the first best target service TRP1 attempt to establish or maintain spatial/time-frequency tracking synchronization, enter or maintain in a "BF coarse (fine) synchronization substate", and establish and activate a new RL1 with the first best target service TRP 1; meanwhile, the UE and the second best Beam2 within the first best target service TRP1 also try to establish or maintain spatial/time-frequency tracking synchronization, enter in advance or maintain in a "BF coarse (fine) synchronization substate"; meanwhile, optionally, the UE and the first best Beam1 in the second best target service TRP2 also try to establish or maintain spatial/time-frequency tracking synchronization, enter or maintain in "BF coarse (fine) synchronization sub-state" in advance, and prepare to establish in advance with the second best target service TRP2 but deactivate the new RL2 (only for data offload transmission after being activated). Further optionally, the UE may also attempt to establish or maintain spatial/time-frequency tracking synchronization with the second best Beam2 within the second best target service TRP2, entering or maintaining in advance a "BF coarse (fine) synchronization substate".

The UE records the operating states of the target service Beams by using a local variable table, for example, as shown in table 1:

table 1 pre-coarse (fine) synchronization/configuration/activation of multi-target service Beams of the present invention

In a normal state, the UE and the first best target service TRP1 establish and activate a new RL1 (which can be used for data offloading), and the UE is in a BF coarse/fine synchronization sub-state on the first best Beam1 in the first best target service TRP1, so that the UE can perform high-quality data offloading on the RL1 (at this time, the UE is in a high-low frequency tight coupling dual connection operation); when the UE has a BF out-of-sync sub-state on the first best Beam1 in the first best target service TRP1 or the RRM signal strength quality is not good, the UE locally and quickly switches to the second best Beam2 in the first best target service TRP1 already in the BF coarse/fine sync sub-state (the UE has done spatial time-frequency synchronization operation in advance), so that the data offloading transmission on the RL1 does not need to be suspended. When the BF out-of-sync sub-state occurs simultaneously on both the first best Beam1 and the second best Beam2 within the first best target service TRP1 by the UE or the RRM signal strength quality is not good, the master anchor base station commands the UE to switch to the first best Beam1 within the second best target service TRP2 already in the BF coarse/fine sync sub-state through RRC message reconfiguration and activates the RL2 that has been previously preconfigured, so that the UE can continue high quality data offloading transmission on the RL2 without a pause in the data offloading transmission (the UE is still in high and low frequency tightly coupled dual connectivity operation at this time, and the master anchor base station can delete or deactivate the source RL 1). When the UE has a BF out-of-sync sub-state on the first best Beam1 within the second best target service TRP2 or the RRM signal strength quality is not good, the UE locally and quickly switches to the second best Beam2 within the second best target service TRP2 already in the BF coarse/fine sync sub-state (because the UE has done the spatial time frequency synchronization operation in advance), so the data offloading transmission on RL2 does not need to be suspended. As shown in fig. 7, the UE is in a dual-connection data transmission state, and there may be several target candidate Beams that are pre-configured and complete in space time-frequency synchronization.

With the present embodiment, the UE needs to perform BF spatial time frequency synchronization operation in advance with 2 (within TRP), or 3 (between TRPs), or 4 (between TRPs) target candidate service Beams, and try to establish and maintain BF coarse/fine synchronization sub-state. The master anchor base station can configure and activate one RL for the UE to serve the current data offloading operation, and can also pre-configure and deactivate another backup RL. And when the specific condition is met, the master control anchor point base station activates the pre-configured backup RL through an RRC reconfiguration command or a physical layer control command. Therefore, the UE can realize the fast mobile switching between beams in/between TRPs, and the pause interruption time and the packet loss rate of user data transmission are greatly reduced.

In an alternative embodiment, the target beam is additionally added and activated for use if no beam anomaly occurs in the source TRP and the target beam within the target TRP satisfies a specified condition. By additionally adding and activating the use of the target beam, data can be transmitted in parallel.

In an optional embodiment, before establishing and maintaining the space/time frequency tracking synchronization between the target beams in the target transmission receiving point TRP, the method further includes the following steps:

step S11, obtaining first optimal beam information with an optimal measurement result and second optimal beam information with a second optimal measurement result from a plurality of target TRPs according to the RRM measurement evaluation model;

step S12, sending the first optimal beam information and the second optimal beam information to a master anchor base station through a measurement report MR/radio resource control RRC message, so that the master anchor base station performs resource pre-configuration and beam association creation on downlink and uplink beams in the target TRP; wherein the first optimal beam information and the second optimal beam information both include: the method comprises the steps of working frequency point bandwidth, physical logic identification of wave beams and azimuth characteristic values of a service cell governed by the TRP.

Through the steps S11 to S12, the first optimal beam information with the best measurement result and the second optimal beam information with the second best measurement result are obtained from the plurality of beams governed by the best measurable target TRP, and the first optimal beam information and the second optimal beam information are sent to the master anchor base station, so that the fast moving switching between the beams is further realized.

In an optional embodiment, establishing and maintaining spatial/time-frequency tracking synchronization between target beams in a target transmission reception point TRP comprises the following steps:

step S21, when the target TRP is the source TRP and the beam to be switched or added is the first best beam, establishing and maintaining the space/time frequency tracking synchronization with the second best beam in the source TRP, wherein the second best beam is in the state of being temporarily not activated for use; or,

step S22, when the target TRP is a TRP other than the source TRP, establishing and maintaining spatial/time-frequency tracking synchronization with a first optimal beam within the target TRP, wherein the first optimal beam is in a state of being temporarily inactive for use; or,

step S23, when the target TRP is a TRP other than the source TRP, establishing and maintaining spatial/time-frequency tracking synchronization with a second best beam within the target TRP, wherein the second best beam is in a state of being temporarily inactive for use.

Note that, the TRPs other than the source TRP referred to in step S22 and step S23 include: one or more target TRPs with better signal quality, which may be measured in addition to the source TRP, are not limited herein.

By enabling the UE to implement fast mobile handover between beams within/between TRPs through the above-described steps S21 or S22 or S23, the pause interruption time and packet loss rate of user data transmission will be greatly reduced.

Optionally, when the target TRP is a TRP other than the source TRP, an additional radio link RL deactivated between the base stations may be established and maintained and shunted in advance so that the UE performs data transmission after handover.

In an alternative embodiment, switching from a beam within the source TRP to a target beam within the target TRP comprises the steps of:

step S31, when the target TRP is a source TRP and the currently serving beam is a first optimal beam, after receiving a command sent by a master anchor base station, switching from the first optimal beam of the source TRP to a second optimal beam within the source TRP; or,

step S32, when the target TRP is a TRP other than a source TRP, switching from the first optimal beam of the source TRP to a first optimal beam within the target TRP after receiving a command sent by a master anchor base station; or,

step S33, when the target TRP is a TRP other than a source TRP, after receiving a command sent by a master anchor base station, switching from the first optimal beam of the source TRP to a second optimal beam within the target TRP.

Through the above steps S31, S32, or S33, the terminal may switch from the first optimal beam of the source TRP to the second optimal beam within the source TRP, or switch from the first optimal beam of the source TRP to the first optimal beam within the target TRP, or switch from the first optimal beam of the source TRP to the second optimal beam within the target TRP, thereby further achieving fast mobile switching between beams.

In an optional embodiment, the additional adding and activating of the use of the target beam comprises the steps of:

step S41, when the target TRP is the source TRP and the currently serving beam is the first optimal beam, after receiving the command sent by the master anchor base station, keeping the first optimal beam of the source TRP unchanged, and adding and activating the second optimal beam in the source TRP; or,

step S42, when the target TRP is a TRP other than the source TRP, after receiving the command sent by the master anchor base station, keeping the first and second optimal beams of the source TRP unchanged, and adding and activating the first and second optimal beams within the target TRP.

Through the steps S41-S42, data transmission can be carried out in parallel, and the data transmission speed is improved.

In an optional embodiment, when fast switching is performed from the first best beam of the source TRP to or additionally adding a first best beam in the target TRP, or switching is performed from the first best beam of the source TRP to or additionally adding a second best beam in the target TRP, an additional RL between base stations is activated and shunted, wherein the RL is established in advance and is in a deactivated state.

Optionally, after switching from the beam in the source TRP to the target beam in the target TRP, the method further includes: the beam within the source TRP is maintained such that the beam is in a normal state.

Optionally, the abnormality includes: the method comprises the steps that a hardware used for receiving and sending beams by a shunting base station TRP or user equipment UE fails, the out-of-step sub-state occurs in the space of uplink and downlink beams or time frequency of the current service, and the signal intensity or quality of radio resource management RRM is lower than a preset threshold value.

Alternative embodiment 1

As shown in fig. 8, mainly the UE is in a dual connectivity data transmission state, and there may be several target candidate Beams pre-configured in advance and completing space time frequency synchronization.

This is explained in detail below with reference to fig. 8.

An operator deploys and utilizes high-low frequency tight coupling to carry out double-connection DC operation, service macro cell coverage of a Pcell is covered on a certain authorized carrier where a low-frequency main control anchor point base station MeNB is located, a remote end is connected with a SeNB high-frequency shunt base station TRP node through an X2 interface, 2 TRPs including TRP1/TRP2 are arranged on the certain high-frequency authorized carrier where the SeNB node is located, and the operator manages 2 service Beams for capacity enhancement of a hotspot area.

Initially, the UE is only under the coverage of Pcell and therefore only forms a single connection operation with the MeNB. Along with the movement of the UE, the UE gradually approaches to a public coverage area of Pcell + TRP1-Beams, so that the MeNB decides to configure RRM measurement parameters of related high-frequency target service TRP1/2 nodes for the UE, the UE carries out downlink RRM measurement on the target TRP1/2-Beams, and by default, the UE needs to firstly carry out downlink space/time frequency tracking synchronization attempt on the target TRP 1/2-Beams. The non-BF low frequency MeNB node and the BF high frequency SeNB-TRP1/2 node and the UE support the content capability of the present invention. The method comprises the following specific implementation steps:

step 101: the main control anchor point base station MeNB is configured to the UE through RRC message RRC Connection Reconfiguration;

and respectively carrying out RRM measurement parameters on the target candidate service TRP1/2 nodes, and enabling the UE to carry out downlink RRM related measurement on the target TRP 1/2-Beams.

Step 102: the UE carries out training tracking, space/time frequency synchronization and RRM measurement on target Beams based on RRM measurement parameters configured by the MeNB, Beam training tracking is carried out through downlink common synchronization signals transmitted by 2 Beams respectively governed by TRP1/2, after a period of synchronous training, the UE firstly obtains a downlink BF fine synchronization sub-state with a first optimal TRP1-Beam1, after a period of synchronous training, the UE further obtains a downlink BF fine synchronization sub-state with a first optimal TRP1-Beam2, after a period of synchronous training, the UE further obtains a downlink BF coarse synchronization sub-state with a second optimal TRP2-Beam1, and due to UE capacity limitation or RRM measurement configuration parameter constraint, the UE does not realize the downlink BF coarse/fine synchronization sub-state with the TRP2-Beam 2.

Step 103: according to the RRM evaluation model shown in fig. 4 in the background art, the UE performs layer 1filtering on the preliminary downlink RRM Measurement sample values obtained by tracking the synchronized service TRP1-Beam1, TRP1-Beam2, and TRP2-Beam1 to obtain intermediate Measurement sample values, performs layer 3filtering to obtain dynamic analysis evaluation values, and reports the dynamic analysis evaluation values to the RRM Measurement results of each target candidate Beams of the MeNB through an RRC message Measurement Report, where the contents may include: the real-time "BF coarse/fine synchronization substate" of the UE and each target candidate beam, and the related RRM mobility event evaluation results and measurement results.

Step 104: the MeNB learns that the UE and the first best TRP1-Beam1 realize the downlink BF fine synchronization sub-state based on the result reported by the UE, and other conditions of the TRP1 node meet preset condition requirements, and determines to establish high-low frequency DC dual-connection operation for the served UE and the SeNB-TRP1, so that RL1 is established on the TRP1-Beam1 according to the existing dual-connection operation establishment flow similar to LTE, and uplink and downlink data shunt transmission is performed. At the same time, the MeNB continues to command the UE to maintain the downlink "BF fine synchronization substate" already in with TRP1-Beam 2. According to the content of the invention, the MeNB also needs to be prepared with the TRP2-Beam1 to establish the RL2 in advance, but is in a deactivated state, and can not carry out uplink and downlink data shunt transmission; the MeNB continues to command the UE to maintain the downlink "BF coarse/fine synchronization substate" already in with TRP2-Beam 1.

Step 105: the SeNB receives a high and low frequency DC dual connectivity operation Addition Request message SeNB Addition Request sent by the MeNB and configuration information respectively established by the activated target RL 1/the deactivated target RL2 through an X2 interface, the SeNB can judge that the TRP1 and the served UE have achieved an uplink "BF fine synchronization sub-state" at Beam1/2 and the measurement result of the related uplink RRM is good, the SeNB can judge that the TRP2 and the served UE have also achieved an uplink "BF fine synchronization sub-state" at Beam1 and the measurement result of the related uplink RRM is good, and therefore the SeNB feeds back to the MeNB Addition Request Ack through the X2 interface, agrees to perform a high and low frequency DC dual connectivity establishment operation, agrees to establish and activate RL1 on TRP1-Beam1, and prepares to establish deactivation but RL2 on TRP2-Beam1 in advance.

Step 106: the MeNB configures the UE for high-low frequency close coupling DC dual-Connection operation through RRC message RRC Connection Reconfiguration, and then the UE can simultaneously transmit data from user services of uplink and downlink on two radio links of the MeNB-RL and the SeNB-TRP1-RL 1. With the movement of the UE, the SeNB-TRP1-RL1 can perform the back-and-forth movement switching without data transmission pause interruption between the TRP1-Beam1 and the TRP1-Beam2, and the UE can also perform the back-and-forth movement switching without data transmission pause interruption between the TRP1 and the TRP 2; RL1 may be simultaneously deactivated after RL2 is activated by RRC signaling issued by the MeNB, and vice versa. As the UE moves outside of various large ranges or the radio environment changes, the MeNB may repeat the flow actions of step 101 and step 106.

Alternative embodiment 2

As shown in fig. 9, mainly the UE is in a dual connectivity data transmission state, and there may be several target candidate Beams pre-configured in advance and completing space time frequency synchronization.

This is explained in detail below with reference to fig. 9.

An operator deploys and utilizes high-low frequency tight coupling to carry out double-connection DC operation, service macro cell coverage of Pcell is arranged on a certain authorized carrier where a low-frequency main control anchor point base station NRBS is located, a TRP node of a high-frequency shunt base station NR BS is connected at a far end through an Xnew interface, 2 TRPs, namely TRP1/TRP2 are arranged on a certain high-frequency authorized carrier where the high-frequency shunt base station NR BS node is located, and the operator is respectively administered with deployment of 2 service Beams and is used for enhancing capacity of a hot spot area. Initially, the UE is only under Pcell coverage and therefore only forms a single connection operation with the low frequency master anchor base station NR BS. Along with the movement of the UE, the UE gradually approaches to a public coverage area of Pcell + TRP1-Beams, so that the low-frequency main control anchor point base station NR BS determines to configure RRM measurement parameters of a related high-frequency target service TRP1/2 node for the UE, the UE carries out downlink RRM measurement on the target TRP1/2-Beams, and the UE needs to carry out downlink space/time frequency tracking synchronization attempt on the target TRP1/2-Beams by default. The NRBS node and the NR BS-TRP1/2 node of the high-frequency shunt base station and the UE both support the content capability of the invention. The method comprises the following specific implementation steps:

step 201: the low-frequency main control anchor point base station NR BS configures RRM measurement parameters of target candidate service TRP1/2 nodes for the UE through RRC message RRC connectionReconfiguration, and enables the UE to perform downlink RRM related measurement on the target TRP 1/2-Beams.

Step 202: the UE carries out searching and tracking, space time frequency synchronization and RRM measurement on a target Beam based on RRM measurement parameters configured by a low-frequency master anchor point base station NR BS, Beam training and tracking are carried out through downlink common synchronization signals emitted by 2 Beams respectively governed by TRP1/2, after a period of synchronous training, the UE firstly obtains a downlink BF coarse synchronization sub-state with a first optimal TRP1-Beam2, after a period of synchronous training, the UE further obtains a downlink BF coarse synchronization sub-state with the first optimal TRP1-Beam1, after a period of synchronous training, the UE further obtains a downlink BF fine synchronization sub-state with a second optimal TRP2-Beam2, and due to the limitation of the UE capacity or the constraint of RRM measurement configuration parameters, the UE does not realize the downlink BF coarse/fine synchronization sub-state with the TRP2-Beam 1.

Step 203: according to a certain new RRM evaluation model specified in an NR system, the UE obtains intermediate Measurement sampling values after filtering processing of a layer 1 for the preliminary downlink RRM Measurement sampling values obtained by tracking synchronous services TRP1-Beam1, TRP1-Beam2 and TRP2-Beam2, obtains dynamic analysis evaluation values after filtering processing of a layer 3, and reports RRM Measurement results of target candidate Beams of a low-frequency master anchor point base station NR BS through an RRC message Measurement Report, wherein the contents of the RRM Measurement results include: the real-time "BF coarse/fine synchronization substate" of the UE and each target candidate beam, and the related RRM mobility event evaluation results and measurement results.

Step 204: based on the result reported by the UE, the low-frequency main control anchor point base station NR BS learns that the UE and the first optimal TRP1-Beam2 realize the downlink BF coarse synchronization sub-state, and other conditions of the TRP1 node meet the preset condition requirements, and determines to establish high-frequency and low-frequency DC dual-connection operation for the served UE and the high-frequency shunt base station NR BS-TRP1, so that according to the dual-connection operation establishment flow specified by the NR system, RL1 is established on the TRP1-Beam2, and uplink and downlink data shunt transmission is performed. Meanwhile, the low frequency master anchor base station NR BS continues to command the UE to maintain the downlink "BF coarse synchronization substate" already in with TRP1-Beam 1. According to the content of the invention, the low-frequency main control anchor point base station NR BS also needs to be prepared with TRP2-Beam2 to establish RL2 in advance, but is in a deactivated state and cannot perform uplink and downlink data shunt transmission; the low frequency master anchor base station NR BS continues to command the UE to maintain the downlink "BF coarse/fine synchronizer state" already in with TRP2-Beam 2.

Step 205: the high-frequency shunting base station NR BS receives a high-frequency and low-frequency DC dual-connection operation adding Request message NR BS Addition Request sent by the low-frequency master anchor base station NR BS and configuration information related to the respective establishment of an activated target RL 1/a deactivated target RL2 through an Xnew interface, the high-frequency shunting base station NR BS can judge that the TRP1 and a served UE realize an uplink BF coarse synchronization substate at the Beam1/2 and the measurement result of related uplink RRM is good, the high-frequency shunting base station NR BS can also judge that the TRP2 and the served UE realize an uplink BF fine synchronization substate at the Beam2 and the measurement result of related RRM is good, therefore, the high-frequency shunting base station NR BS feeds back the low-frequency master anchor base station NR BS message NR BS Addition Request Ack through the Xnew interface, agrees to perform high-low-frequency DC dual-connection establishment operation and agrees to establish and activate the RL1 on the TRP1-Beam2, RL2 is pre-established but deactivated on TRP2-Beam 2.

Step 206: the low-frequency main control anchor point base station NR BS configures high-frequency and low-frequency tight coupling DC dual-connection operation for the UE through RRC message RRC connection reconfiguration, and then the UE can simultaneously transmit data of uplink and downlink user services on two wireless links of the low-frequency main control anchor point base station NR BS-RL and the high-frequency shunt base station NR BS-TRP1-RL 1. With the movement of the UE, the TRP1-RL1 can perform the back-and-forth movement switching without data transmission pause interruption between the TRP1-Beam2 and the TRP1-Beam1, and the UE can also perform the back-and-forth movement switching without data transmission pause interruption between the TRP1 and the TRP 2; RL1 may be simultaneously deactivated after RL2 is activated by physical layer signaling issued by master anchor base station NR BS and vice versa. As the UE moves out of the wide range or the wireless environment changes, the low frequency master anchor base station NR BS may repeat the flow of step 201 and step 206.

Alternative embodiment 3

As shown in fig. 10, mainly the UE is in a three-connection data transmission state, and there may be several target candidate Beams pre-configured in advance and completing space time frequency synchronization.

This is explained in detail below with reference to fig. 10.

An operator deploys and utilizes high-low frequency tight coupling to perform multi-connection MC operation, service macro cell coverage of a Pcell is covered on a certain authorized carrier where a low-frequency main control anchor point base station NRBS is located, a TRP node of a high-frequency shunt base station NR BS is connected at a far end through an Xnew interface, 2 TRPs, namely TRP1/TRP2, are arranged on a certain high-frequency authorized carrier where the high-frequency shunt base station NR BS node is located, and the operator is respectively administered with deployment of 2 service Beams and used for capacity enhancement of a hot spot area. Initially, the UE is only under Pcell coverage and therefore only forms a single connection operation with the low frequency master anchor base station NR BS. Along with the movement of the UE, the UE gradually approaches to a public coverage area of Pcell + TRP1/2-Beams, so that the low-frequency main control anchor point base station NR BS determines to configure RRM measurement parameters of a related high-frequency target service TRP1/2 node for the UE, the UE carries out downlink RRM measurement on the target TRP1/2-Beams, and by default, the UE needs to carry out downlink space/time frequency tracking synchronization attempt on the target TRP 1/2-Beams. The low-frequency main control anchor point base station NR BS node, the high-frequency shunt base station NR BS-TRP1/2 node and the UE support the content capability of the invention. The method comprises the following specific implementation steps:

step 301: the low-frequency main control anchor point base station NR BS configures RRM measurement parameters of target candidate service TRP1/2 nodes for the UE through RRC message RRC connectionReconfiguration, and enables the UE to perform downlink RRM related measurement on the target TRP 1/2-Beams.

Step 302: the UE carries out searching and tracking, space time frequency synchronization and RRM measurement on a target Beam based on RRM measurement parameters configured by a low-frequency master anchor point base station NR BS, Beam training and tracking are carried out through downlink common synchronization signals emitted by 2 Beams respectively governed by TRP1/2, after a period of synchronous training, the UE firstly obtains a downlink BF coarse synchronization sub-state with a first optimal TRP1-Beam2, after a period of synchronous training, the UE further obtains a downlink BF coarse synchronization sub-state with the first optimal TRP1-Beam1, after a period of synchronous training, the UE further obtains a downlink BF fine synchronization sub-state with a second optimal TRP2-Beam2, and after a period of synchronous training, the UE further obtains a downlink BF fine synchronization sub-state with the second optimal TRP2-Beam 1.

Step 303: according to a certain new RRM evaluation model specified in an NR system, the UE obtains intermediate Measurement sample values after filtering processing of layer 1 for preliminary Measurement sample values of downlink RRM obtained by tracking synchronous service TRP1-Beam1, TRP1-Beam2, TRP2-Beam1 and TRP2-Beam2, obtains dynamic analysis and evaluation values after filtering processing of layer 3, and reports RRM Measurement results of target candidate Beams of a low-frequency master anchor point NR BS through an RRC message Measurement Report, wherein the RRM Measurement results comprise: the real-time "BF coarse/fine synchronization substate" of the UE and each target candidate beam, and the related RRM mobility event evaluation results and measurement results.

Step 304: based on the result reported by the UE, the low-frequency main control anchor point base station NR BS learns that the UE and the first optimal TRP1-Beam2 realize the downlink BF coarse synchronization sub-state, and other conditions of the TRP1 node meet preset condition requirements, and simultaneously learns that the UE and the second optimal TRP2-Beam2 realize the downlink BF fine synchronization sub-state, and other conditions of the TRP2 node meet preset condition requirements, so that the high-frequency and low-frequency MC triple-connection operation is determined to be established between the served UE and the high-frequency shunt base station NR BS-TRP1/2, and according to a triple-connection operation establishment flow specified by an NR system, RL1 is established on the TRP1-Beam2, RL2 is established on the TRP2-Beam2, and uplink and downlink data shunt transmission is performed. Meanwhile, the low-frequency master anchor base station NR BS continues to command the UE and the TRP1-Beam1 to be maintained in the existing downlink BF coarse synchronization sub-state, and commands the UE and the TRP2-Beam1 to be maintained in the existing downlink BF fine synchronization sub-state. According to the invention, RL1 and RL2 established by the low-frequency master anchor point base station NR BS for UE can be in an activated state, and uplink and downlink data shunt transmission is carried out at the same time.

Step 305: the high-frequency shunting base station NR BS receives a high-frequency and low-frequency MC three-connection operation Addition Request message NR BS Addition Request sent by the low-frequency master anchor base station NR BS and configuration information related to the respective establishment of an activated target RL 1/an activated target RL2 through an Xnew interface, the high-frequency shunting base station NR BS can judge that the TRP1 and the served UE realize an uplink BF coarse synchronization sub-state at the Beam1/2 and the measurement result of related uplink RRM is good, the high-frequency shunting base station NRBS can also judge that the TRP2 and the served UE realize an uplink BF fine synchronization sub-state at the Beam1/2 and the measurement result of related RRM is good, therefore, the high-frequency shunting base station NR BS feeds back the low-frequency master anchor base station NR BS message NR BS Addition Request Ack through the Xnew interface, agrees to perform high-low-frequency MC three-connection establishment operation and agrees to establish and activate the RL1 on the TRP1-Beam2, RL2 was established and activated on TRP2-Beam 2.

Step 306: the low-frequency main control anchor point base station NR BS configures high-frequency and low-frequency tight coupling MC three-connection operation for the UE through RRC message RRC connection reconfiguration, and then the UE can simultaneously transmit data from user services of uplink and downlink on three wireless links of the low-frequency main control anchor point base station NR BS-RL and the high-frequency shunt base station NR BS-TRP1-RL1 and TRP2-RL 2. With the movement of the UE, the TRP1-RL1 can perform the back-and-forth movement switching without data transmission pause interruption between the TRP1-Beam2 and the TRP1-Beam1, and the TRP2-RL2 can perform the back-and-forth movement switching without data transmission pause interruption between the TRP2-Beam2 and the TRP2-Beam 1. As the UE moves out of the wide range or the wireless environment changes, the low frequency master anchor base station NR BS may repeat the flow of step 301 and step 306.

Through the above description of the embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but the former is a better implementation mode in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.

Example 2

In this embodiment, a beam management apparatus is further provided, and the apparatus is used to implement the foregoing embodiments and preferred embodiments, and details are not repeated for what has been described. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.

Fig. 11 is a block diagram of a beam management apparatus according to an embodiment of the present invention, as shown in fig. 11, the apparatus including:

1) an establishing module 112, configured to establish and maintain space/time frequency tracking synchronization between multiple target beams in a target transmission reception point TRP;

2) a switching module 114, configured to switch a beam in a source TRP to a target beam in a target TRP after a beam in the source TRP is abnormal and a command sent by a master anchor base station is received;

optionally, in this embodiment, synchronization between space/time frequency tracking and multiple target beams in the target transmission reception point TRP is established and maintained; if the beam in the source TRP is abnormal, after receiving a command sent by a main control anchor point base station, switching the beam in the source TRP to a target beam in the target TRP. That is to say, in this embodiment, by establishing and maintaining the beam management device synchronized with the space/time-frequency tracking between multiple target beams in the target transmission and reception point TRP before the beam in the source TRP is abnormal, the problem of low UE data throughput rate caused by long inter-beam mobile switching time in the related art is solved, and the technical effect of reducing inter-beam mobile switching time is achieved.

Fig. 12 is a block diagram (a) of a beam management apparatus according to an embodiment of the present invention, and as shown in fig. 12, the apparatus includes, in addition to the apparatus shown in fig. 11:

1) an adding module 122, configured to additionally add and activate the target beam when no abnormality occurs in the beam within the source TRP and the target beam within the target TRP satisfies a specified condition.

By the apparatus shown in fig. 12, a target beam is additionally added and activated to be used so that data can be transmitted in parallel.

Fig. 13 is a block diagram (ii) of a beam management apparatus according to an embodiment of the present invention, and as shown in fig. 13, the apparatus includes, in addition to the apparatus shown in fig. 11:

1) an obtaining module 132, configured to obtain, according to a RRM measurement evaluation model, first optimal beam information with an optimal measurement result and second optimal beam information with a second optimal measurement result in a plurality of target TRPs before establishing and maintaining space/time-frequency tracking synchronization with target beams in the target transmission reception point TRP;

2) a sending module 134, configured to send the first optimal beam information and the second optimal beam information to a master anchor base station through a measurement report MR/radio resource control RRC message, so that the master anchor base station performs resource pre-configuration and beam association creation on downlink and uplink beams in the target TRP; wherein the first optimal beam information and the second optimal beam information both include: the method comprises the steps of working frequency point bandwidth, physical logic identification of wave beams and azimuth characteristic values of a service cell governed by the TRP.

Through the apparatus shown in fig. 13, the first optimal beam information with the best measurement result and the second optimal beam information with the second best measurement result in the plurality of beams governed by the best measurable target TRP are obtained and sent to the master anchor base station, so that fast mobile handover between beams is further achieved.

Fig. 14 is a block diagram (three) of the beam management apparatus according to the embodiment of the present invention, and as shown in fig. 14, the establishing module 122 includes:

1) a first establishing unit 142, configured to establish and maintain spatial/time-frequency tracking synchronization with a second optimal beam in the TRP when the target TRP is the TRP and the beam to be switched or added is the first optimal beam, where the second optimal beam is in a state where it is temporarily not activated for use; or,

equally replacing the first establishing unit 142 with a second establishing unit, wherein the second establishing unit is configured to establish and maintain spatial/time-frequency tracking synchronization with a first optimal beam in the target TRP when the target TRP is a TRP other than the source TRP, wherein the first optimal beam is in a state of being temporarily inactive for use; or,

the first establishing unit 142 is equivalently replaced by a third establishing unit, which is used for establishing and maintaining space/time-frequency tracking synchronization with a second best beam in the target TRP when the target TRP is a TRP other than the source TRP, wherein the second best beam is in a state of being temporarily inactivated for use.

By the apparatus shown in fig. 14, enabling the UE to implement fast mobile handover between beams inside/between TRPs, the pause interruption time and packet loss rate of user data transmission will be greatly reduced.

Fig. 15 is a block diagram (iv) of a beam management apparatus according to an embodiment of the present invention, and as shown in fig. 14, the establishing module 122 further includes:

1) a fourth establishing unit 152, configured to establish and maintain and offload an additional radio link RL deactivated between base stations when the target TRP is a TRP other than the source TRP.

Fig. 16 is a block diagram (v) of the beam management apparatus according to the embodiment of the present invention, and as shown in fig. 16, the switching module 124 includes:

1) a first switching unit 162, configured to switch from a first optimal beam of the source TRP to a second optimal beam in the source TRP after receiving a command sent by a master anchor base station when the target TRP is the source TRP and a currently serving beam is the first optimal beam; or,

equally replacing the first switching unit 162 with a second switching unit, wherein the second switching unit is configured to switch from the first best beam of the source TRP to the first best beam in the target TRP after receiving a command sent by the master anchor base station when the target TRP is a TRP other than the source TRP; or,

and the first switching unit 162 is equivalently replaced by a third switching unit, wherein the third switching unit is configured to switch from the first optimal beam of the source TRP to the second optimal beam in the target TRP after receiving a command sent by the master anchor base station when the target TRP is a TRP other than the source TRP.

By the apparatus shown in fig. 16, the terminal may switch from the first optimal beam of the source TRP to the second optimal beam within the source TRP, or switch from the first optimal beam of the source TRP to the first optimal beam within the target TRP, or switch from the first optimal beam of the source TRP to the second optimal beam within the target TRP, thereby further realizing fast mobile handover between beams.

Fig. 17 is a block diagram (six) of a beam management apparatus according to an embodiment of the present invention, and as shown in fig. 17, adding the module 122 includes:

1) a first adding unit 172, configured to, when the target TRP is a source TRP and a currently serving beam is a first optimal beam, after receiving a command sent by a master anchor base station, keep the first optimal beam of the source TRP unchanged, and add and activate to use a second optimal beam in the source TRP; or,

and replacing the first adding unit 172 with a second adding unit, wherein the second adding unit is configured to keep the first and second optimal beams of the source TRP unchanged after receiving a command sent by the master anchor base station when the target TRP is a TRP other than the source TRP, and add and activate to use the first and second optimal beams in the target TRP.

By the apparatus shown in fig. 17, data transmission can be performed in parallel, and the data transmission speed is increased.

Fig. 18 is a block diagram (seventh) of a beam management apparatus according to an embodiment of the present invention, as shown in fig. 18, the apparatus includes, in addition to the modules shown in fig. 11:

1) an activating module 182, configured to activate and offload an additional RL between base stations when switching from the first optimal beam of the source TRP to or additionally adding a first optimal beam within the target TRP, or switching from the first optimal beam of the source TRP to or additionally adding a second optimal beam within the target TRP, wherein the RL is established in advance and in a deactivated state.

Fig. 19 is a block diagram (eight) of the structure of a beam management apparatus according to an embodiment of the present invention, and as shown in fig. 19, the apparatus includes, in addition to the modules shown in fig. 11:

1) a maintaining module 192, configured to maintain the beam within the source TRP to be in a normal state after switching from the beam within the source TRP to the target beam within the target TRP.

Optionally, the abnormality includes: the method comprises the steps that a hardware used for receiving and sending beams by a shunting base station TRP or a terminal UE fails, the out-of-step sub-state occurs in the space of uplink and downlink beams or time frequency of the current service, and the signal intensity or the quality of a radio resource management RRM is lower than a preset threshold value.

It should be noted that, the above modules may be implemented by software or hardware, and for the latter, the following may be implemented, but not limited to: the modules are all positioned in the same processor; alternatively, the modules are respectively located in different processors in any combination.

Example 3

In this embodiment, a beam management method is provided, and fig. 20 is a flowchart of another beam management method according to an embodiment of the present invention, as shown in fig. 20, the flowchart includes the following steps:

step S2002, judging whether the beam in the TRP of the source sending receiving point is abnormal or not;

step S2004, if the beam in the source TRP is abnormal, the UE is instructed to switch from the beam in the source TRP to the target beam in the target TRP;

step S2006, if the beam in the source TRP is not abnormal and the target beam in the target TRP satisfies a specified condition, indicating the UE to additionally add and activate the target beam;

wherein the target beam is in a state of established and maintained space/time frequency tracking synchronization.

Optionally, in this embodiment, when a beam in the source TRP is abnormal, the base station instructs the UE to switch from the beam in the source TRP to a target beam in the target TRP, and when the beam in the source TRP is not abnormal and the target beam in the target TRP meets a specified condition, the UE is instructed to additionally add and activate the target beam, where the target beam is in a state where space/time-frequency tracking synchronization is established and maintained, a problem of low UE data throughput rate due to a long inter-beam mobile switching time in the related art is solved, and a technical effect of reducing inter-beam mobile switching time is achieved.

Example 4

Fig. 21 is a block diagram of another beam management apparatus according to an embodiment of the present invention, as shown in fig. 21, the apparatus including:

1) a judging module 2102, configured to judge whether a beam in a TRP of a source transmission receiving point is abnormal;

2) a first indicating module 2104 for indicating a user equipment UE to switch from a beam within a source TRP to a target beam within a target TRP when a beam within the source TRP is abnormal;

3) a second indicating module 2106, configured to instruct the UE to additionally add and activate use of the target beam when the beam within the source TRP is not abnormal and the target beam within the target TRP satisfies a specified condition;

wherein the target beam is in a state of established and maintained spatial/time-frequency tracking synchronization.

With the apparatus shown in fig. 21, when a beam in a source TRP is abnormal, a base station instructs a user equipment UE to switch from the beam in the source TRP to a target beam in a target TRP, and when the beam in the source TRP is not abnormal and the target beam in the target TRP satisfies a specified condition, the base station instructs the UE to additionally add and activate the target beam, wherein the target beam is in a state of establishing and maintaining space/time frequency tracking synchronization, which solves the problem of low UE data throughput rate caused by long inter-beam mobile switching time in the related art, and achieves the technical effect of reducing inter-beam mobile switching time.

Example 5

The embodiment of the invention also provides a storage medium. Alternatively, in the present embodiment, the storage medium may be configured to store program codes for performing the following steps:

s1, establishing and maintaining the space/time frequency tracking synchronization between a plurality of target beams in a target sending and receiving point TRP;

s2, if the beam in the source TRP is abnormal, after receiving the command sent by the master anchor base station, switching from the beam in the source TRP to the target beam in the target TRP.

Optionally, the storage medium may be further configured to store program code for performing the following steps:

s3, judging whether the beam in the TRP of the source sending receiving point is abnormal or not;

s4, if the beam in the source TRP is abnormal, the user equipment UE is instructed to switch from the beam in the source TRP to the target beam in the target TRP;

s5, if the beam in the source TRP is not abnormal and the target beam in the target TRP meets the specified conditions, the UE is instructed to additionally add and activate the target beam; wherein the target beam is in a state of established and maintained space/time frequency tracking synchronization.

Optionally, in this embodiment, the storage medium may include, but is not limited to: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.

Alternatively, in the present embodiment, the processor executes the above steps S1, S2 according to program codes already stored in the storage medium.

Alternatively, in the present embodiment, the processor performs the above steps S3, S4, and S5 according to program codes already stored in the storage medium.

Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation manners, and this embodiment is not described herein again.

It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method of beam management, comprising:

establishing and maintaining space/time frequency tracking synchronization between a plurality of target beams in a target transmitting and receiving point TRP;

if the beam in the source TRP is abnormal, after receiving a command sent by a main control anchor point base station, switching the beam in the source TRP to a target beam in the target TRP.

2. The method of claim 1, further comprising:

if no beam abnormality occurs in the source TRP and the target beam in the target TRP satisfies a specified condition, the target beam is additionally added and activated for use.

3. The method according to claim 1, further comprising, before establishing and maintaining spatial/time-frequency tracking synchronization with target beams in a target transmission reception point TRP:

acquiring first optimal beam information with the best measurement result and second optimal beam information with the second best measurement result in a plurality of target TRPs according to a Radio Resource Management (RRM) measurement evaluation model;

sending the first optimal beam information and the second optimal beam information to a master anchor base station through a Measurement Report (MR)/Radio Resource Control (RRC) message, so that the master anchor base station performs resource pre-configuration and beam association creation on downlink and uplink beams in the target TRP; wherein the first optimal beam information and the second optimal beam information each include: the method comprises the steps of working frequency point bandwidth, physical logic identification of wave beams and azimuth characteristic values of a service cell governed by the TRP.

4. The method of claim 3, wherein establishing and maintaining spatial/time-frequency tracking synchronization with a target beam in a target transmission reception point TRP comprises:

when the target TRP is a source TRP and the wave beam to be switched or added is a first optimal wave beam, establishing and maintaining space/time frequency tracking synchronization with a second optimal wave beam in the source TRP, wherein the second optimal wave beam is in a state of being temporarily inactivated for use; or,

when the target TRP is a TRP except a source TRP, establishing and maintaining space/time frequency tracking synchronization with a first optimal beam in the target TRP, wherein the first optimal beam is in a state of being temporarily not activated for use; or,

when the target TRP is a TRP except a source TRP, establishing and maintaining space/time frequency tracking synchronization with a second optimal beam in the target TRP, wherein the second optimal beam is in a state of being not activated for use temporarily.

5. The method of claim 4, further comprising:

and when the target TRP is a TRP except the source TRP, establishing and maintaining and shunting an additional radio link RL which is deactivated between the base stations.

6. The method of claim 1, wherein the switching from the beam within the source TRP to the target beam within the target TRP comprises:

when the target TRP is a source TRP and a current serving beam is a first optimal beam, after a command sent by a main control anchor point base station is received, switching from the first optimal beam of the source TRP to a second optimal beam in the source TRP; or,

when the target TRP is a TRP except a source TRP, switching from a first optimal beam of the source TRP to a first optimal beam in the target TRP after receiving a command sent by a main control anchor point base station; or,

when the target TRP is a TRP except a source TRP, switching from a first optimal beam of the source TRP to a second optimal beam in the target TRP after receiving a command sent by a main control anchor point base station.

7. The method of claim 2, wherein the additionally adding and activating use of a target beam comprises:

when the target TRP is a source TRP and a current serving wave beam is a first optimal wave beam, after a command sent by a main control anchor point base station is received, keeping the first optimal wave beam of the source TRP unchanged, and adding and activating to use a second optimal wave beam in the source TRP; or,

when the target TRP is a TRP except a source TRP, after a command sent by a main control anchor point base station is received, keeping a first optimal beam and a second optimal beam of the source TRP unchanged, and adding and activating to use the first optimal beam and the second optimal beam in the target TRP.

8. The method as claimed in claim 6 or 7, further comprising, when switching fast from or adding additionally to a first best beam within the target TRP from the first best beam of the source TRP or switching from or adding additionally to a second best beam within the target TRP from the first best beam of the source TRP:

an additional RL between base stations is activated and offloaded, wherein the RL is established in advance and is in a deactivated state.

9. The method of claim 1, further comprising, after switching from a beam within the source TRP to a target beam within the target TRP:

maintaining a beam within the source TRP such that the beam is in a normal state.

10. The method of any one of claims 1 to 9, wherein the anomaly comprises: the method comprises the steps that a hardware used for receiving and sending beams by a shunting base station TRP or user equipment UE fails, the out-of-step sub-state occurs in the space of uplink and downlink beams or time frequency of the current service, and the signal intensity or quality of radio resource management RRM is lower than a preset threshold value.

11. A method of beam management, comprising:

judging whether the wave beam in a source sending receiving point TRP is abnormal or not;

if the wave beam in the source TRP is abnormal, indicating User Equipment (UE) to switch from the wave beam in the source TRP to a target wave beam in a target TRP;

if the beam in the source TRP is not abnormal and the target beam in the target TRP meets the specified condition, indicating the UE to additionally add and activate the target beam;

12. A beam management apparatus, comprising:

the system comprises an establishing module, a receiving module and a processing module, wherein the establishing module is used for establishing and maintaining space/time frequency tracking synchronization between a plurality of target beams in a target transmitting and receiving point TRP;

and the switching module is used for switching the beam in the source TRP to a target beam in the target TRP after receiving a command sent by a main control anchor point base station if the beam in the source TRP is abnormal.

13. The apparatus of claim 12, further comprising:

and the adding module is used for additionally adding and activating the target beam when the beam in the source TRP is not abnormal and the target beam in the target TRP meets the specified condition.

14. The apparatus of claim 12, further comprising:

the acquisition module is used for acquiring first optimal beam information with the best measurement result and second optimal beam information with the second best measurement result in a plurality of target TRPs according to a radio resource management RRM measurement evaluation model before establishing and maintaining space/time-frequency tracking synchronization with target beams in the target transmission receiving points TRP;

a sending module, configured to send the first optimal beam information and the second optimal beam information to a master anchor base station through a measurement report MR/radio resource control RRC message, so that the master anchor base station performs resource pre-configuration and beam association creation on downlink and uplink beams in the target TRP; wherein the first optimal beam information and the second optimal beam information each include: the method comprises the steps of working frequency point bandwidth, physical logic identification of wave beams and azimuth characteristic values of a service cell governed by the TRP.

15. The apparatus of claim 14, wherein the establishing means comprises:

a first establishing unit, configured to establish and maintain spatial/time-frequency tracking synchronization with a second optimal beam in a source TRP when the target TRP is the source TRP and a beam to be switched or added is a first optimal beam, where the second optimal beam is in a state where the second optimal beam is not activated for use temporarily; or,

a second establishing unit, configured to establish and maintain spatial/time-frequency tracking synchronization with a first optimal beam within the target TRP when the target TRP is a TRP other than the source TRP, where the first optimal beam is in a state where it is temporarily not actively used; or,

and a third establishing unit, configured to establish and maintain spatial/time-frequency tracking synchronization with a second best beam within the target TRP when the target TRP is a TRP other than the source TRP, where the second best beam is in a state where it is not activated for use temporarily.

16. The apparatus of claim 15, wherein the establishing module further comprises:

and a fourth establishing unit, configured to establish and maintain and offload an additional radio link RL that is deactivated between base stations when the target TRP is a TRP other than the source TRP.

17. The apparatus of claim 12, wherein the switching module comprises:

a first switching unit, configured to switch, when the target TRP is a source TRP and a currently serving beam is a first optimal beam, from the first optimal beam of the source TRP to a second optimal beam within the source TRP after receiving a command sent by a master anchor base station; or,

a second switching unit, configured to switch, when the target TRP is a TRP other than a source TRP, from a first optimal beam of the source TRP to a first optimal beam within the target TRP after receiving a command sent by a master anchor base station; or,

and a third switching unit, configured to switch, when the target TRP is a TRP other than the source TRP, from the first optimal beam of the source TRP to a second optimal beam within the target TRP after receiving a command sent by the master anchor base station.

18. The apparatus of claim 13, wherein the adding module comprises:

a first adding unit, configured to, when the target TRP is a source TRP and a currently serving beam is a first optimal beam, after receiving a command sent by a master anchor base station, keep the first optimal beam of the source TRP unchanged, and add and activate to use a second optimal beam in the source TRP; or,

and a second adding unit, configured to, when the target TRP is a TRP other than the source TRP, keep the first and second optimal beams of the source TRP unchanged after receiving a command sent by the master anchor base station, and add and activate use of the first and second optimal beams in the target TRP.

19. The apparatus of claim 17 or 18, further comprising:

an activation module, configured to activate and offload an additional RL between base stations when switching from the first optimal beam of the source TRP to or additionally adding a first optimal beam within the target TRP, or switching from the first optimal beam of the source TRP to or additionally adding a second optimal beam within the target TRP, wherein the RL is established in advance and is in a deactivated state.

20. The apparatus of claim 12, further comprising:

a maintaining module for maintaining the beam within the source TRP to be in a normal state after switching from the beam within the source TRP to a target beam within the target TRP.

21. The apparatus of any one of claims 12 to 20, wherein the anomaly comprises: the method comprises the steps that a hardware used for receiving and sending beams by a shunting base station TRP or user equipment UE fails, the out-of-step sub-state occurs in the space of uplink and downlink beams or time frequency of the current service, and the signal intensity or quality of radio resource management RRM is lower than a preset threshold value.

22. A beam management apparatus, comprising:

the judging module is used for judging whether the wave beam in the TRP of the source sending receiving point is abnormal or not;

the first indication module is used for indicating the UE to switch from the beam in the source TRP to the target beam in the target TRP when the beam in the source TRP is abnormal;

a second indicating module, configured to indicate the UE to additionally add and activate the target beam when the beam within the source TRP is not abnormal and the target beam within the target TRP satisfies a specified condition;