CN108024278B

CN108024278B - mobility management method, user terminal and network side equipment

Info

Publication number: CN108024278B
Application number: CN201610965988.4A
Authority: CN
Inventors: 刘佳敏; 皮埃尔; 许芳丽
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2016-11-04
Filing date: 2016-11-04
Publication date: 2019-12-06
Anticipated expiration: 2036-11-04
Also published as: CN108024278A

Abstract

the invention provides a mobility management method, a user terminal and network side equipment, wherein the method comprises the following steps: the method comprises the steps that a user terminal measures a first-level reference signal in a connected state to obtain a measurement result, wherein the first-level reference signal comprises a transmission node-level reference signal and/or a beam-level reference signal; the user terminal generates a reporting result according to the measurement result; and the user terminal sends the report result to network side equipment, wherein the report result is used for the network side equipment to carry out mobility management on a service set of the user terminal, and the service set comprises transmission nodes and/or beams. The embodiment of the invention can improve the efficiency of mobility management.

Description

Mobility management method, user terminal and network side equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a mobility management method, a user terminal, and a network side device.

Background

In the future development of mobile communication systems, in order to better meet user requirements and greatly improve network capacity and throughput, more transmission nodes and larger transmission bandwidth must be introduced. However, in the current mobile communication system, a single transmission node is often formed into a cell, and mobility management is mainly managed by the following method:

when a User Equipment (UE) in an idle state operates across cells, it needs to re-read system messages and perform necessary cell reselection operations, and for a UE in a connected state, the UE needs to perform a handover procedure across cells and update security parameters.

however, in a mobile communication system (for example, a 5G network or other networks), there may be a large number of transmission nodes, so that if the nodes are also managed by using the existing mobility management method, the efficiency of mobility management is low. It can be seen that the efficiency of mobility management is low in the current communication system.

disclosure of Invention

the invention aims to provide a mobility management method, a user terminal and network side equipment, which solve the problem of low mobility management efficiency in a communication system.

In order to achieve the above object, an embodiment of the present invention provides a mobility management method, including:

The method comprises the steps that a user terminal measures a first-level reference signal in a connected state to obtain a measurement result, wherein the first-level reference signal comprises a transmission node-level reference signal and/or a beam-level reference signal;

the user terminal generates a reporting result according to the measurement result;

and the user terminal sends the report result to network side equipment, wherein the report result is used for the network side equipment to carry out mobility management on a service set of the user terminal, and the service set comprises transmission nodes and/or beams.

optionally, the method further includes:

The user terminal measures the reference signal of the cell level and resides in the cell according to the measurement result;

And the user terminal measures the surrounding reference signals of the first level in a random access process or a connection establishment process and reports the measured reference signals to the network side equipment.

Optionally, the reference signal at the level of the transmission node includes: the specific reference signals sent by each transmission node are different;

the beam level reference signals include: a unique reference signal is transmitted by each beam, and the unique reference signals transmitted by different beams are different;

The cell-level reference signal includes: multiple transmission nodes and/or beams within the same cell transmit the same reference signal.

optionally, the reference signal of the first level includes one or more of the following information:

An identity of a transmission node or beam, a cell identity and an identity of a transmission node or beam within a cell.

optionally, the transmission nodes and/or beams included in the service set belong to the same cell; or

the transmission nodes and/or beams comprised by the service set belong to two or more cells.

optionally, the measuring, by the user terminal in the connected state, the reference signal of the first level includes one or more of:

the terminal measures a first level of reference signals transmitted by transmission nodes and/or beams included in the service set in a connected state;

the terminal measures a first level of reference signals sent by transmission nodes and/or beams of the same cell, which do not belong to the service set, in a connected state;

and the terminal measures the reference signals of the first level sent by the transmission nodes and/or beams of the adjacent cells in the connected state.

optionally, the generating, by the user terminal, a report result according to the measurement result includes:

the user terminal selects a reporting result from the measurement results of layer three according to the triggered reporting parameter configuration of each transmission node and/or beam, wherein the measurement results of layer three comprise:

And the layer three receives the measurement result reported by the layer one, and carries out three-layer filtering on the measurement result to obtain a reported result, wherein the measurement reported by the layer one comprises the measurement result of the layer one or the measurement result of the layer one to the measurement result after one layer of filtering.

optionally, the report result includes one or more of the following items:

the service set comprises measurement results of transmission nodes and/or beams with link quality deterioration meeting a first threshold and lasting for a first time, and the measurement results are used for the network side equipment to delete the measurement results from the service set;

a measurement result of an adjacent transmission node and/or beam, where the measurement result is used for the network side device to add the measurement result into the service set, and the link quality of the adjacent transmission node and/or beam is higher than the link quality of the transmission node and/or beam in the service set by a second threshold and lasts for a second duration, but does not belong to the service set in the same cell, or the link quality of the adjacent transmission node and/or beam is higher than a third threshold and lasts for a third duration;

and a measurement result of the transmission node and/or beam of the neighboring cell, where the measurement result is used for the network side device to add the measurement result to the service set, and the link quality of the transmission node and/or beam of the neighboring cell is higher than the link quality of the transmission node and/or beam in the service set by a fourth threshold and lasts for a fourth time, or the link quality of the transmission node and/or beam of the neighboring cell is higher than a fifth threshold and lasts for a fifth time.

optionally, the service set includes:

The transmission node and/or beam initially accessed by the user terminal and the adjacent transmission node and/or beam meeting a preset threshold added in the service set by the network side equipment according to the measurement result of the user terminal for the reference signal of the first level; or

And the network side equipment selects the transmission node and/or the beam meeting the preset threshold according to the measurement result of the adjacent transmission node and/or beam reported by the user terminal in the initial access process.

Optionally, the method further includes:

The user terminal receives a measurement configuration sent by the network side device, wherein the measurement configuration includes one or more of the following:

frequency point bandwidth for searching and measuring;

Resource locations where searching and measurements are made;

A characteristic of a reference signal of a first level to be measured;

triggering and reporting parameter configuration of measurement results of transmission nodes and/or beams in a service set;

triggering and reporting parameter configuration of measurement results of transmission nodes and/or beams of the same cell outside a service set;

and reporting the parameter configuration for triggering of the measurement result of the transmission node and/or the beam of the adjacent cell outside the service set.

optionally, the measuring, by the ue, the reference signal of the first level in the connected state includes:

the user terminal searches and measures the reference signal of the first level according to the parameter of the parameter signal of the first level in the measurement configuration or the special signaling when in a connection state; or

And the user terminal searches and measures the reference signal of the first level according to the parameter of the parameter signal of the pre-configured first level in the connection state.

Optionally, the mobility management includes:

and the user terminal performs switching in the same cell range between the transmission nodes and/or beams in the service set, wherein the switching in the same cell range keeps the transmission state of the protocols of the layer two and more than the layer two, and only updates and resets the configuration of the layer one.

Optionally, the mobility management includes:

switching a service set of an original cell of the user terminal into a service set of a target cell, and sending the service set of the target cell to the user terminal, wherein the user terminal can disconnect the service set of the original cell and initiate an access process to the service set of the target cell; or

And adding part of transmission nodes and/or beams of a target cell into a service set of the user terminal, wherein the configuration of the part of transmission nodes and/or beams of the target cell is determined by the target cell, and the user terminal operates in the service set of the user terminal and is determined by negotiation between the target cell and an original cell.

the user terminal searches for the reference signal of the target cell at the cell level, acquires downlink synchronization with the target cell, and searches and measures the reference signal of the first level in the target cell based on the downlink synchronization; or

and the user terminal directly searches and measures the reference signal of the first level in the target cell.

optionally, the method further includes:

the user terminal receives the system message of the target cell which is issued by the network side equipment together with the switching command in a special signaling mode;

and if the user terminal does not establish downlink synchronization with the transmission node and/or the beam of the target cell when receiving the switching command, reading the reference signal of the cell level of the target cell to establish downlink synchronization, and initiating a random access process to the transmission node and/or the beam of the target cell.

Optionally, the mobility management further includes:

The user terminal performs cross-cell switching between transmission nodes and/or beams in the service set, wherein if the original cell and the target cell cannot share a high-level Protocol, the cross-cell switching needs to reconfigure or reset a layer two or more protocols, and a layer two transmission state of the user terminal only maintains a Packet Data Convergence Protocol (PDCP) layer state.

an embodiment of the present invention further provides a mobility management method, including:

the method comprises the steps that network side equipment obtains a reporting result sent by a user terminal, wherein the reporting result is generated by measuring a first-level reference signal when the user terminal is in a connected state, and the first-level reference signal comprises a transmission node-level reference signal and/or a beam-level reference signal;

And the network side equipment performs mobility management on a service set of the user terminal according to the report result, wherein the service set comprises transmission nodes and/or beams.

Optionally, the method further includes:

And the network side equipment receives a measurement result of measuring the first-level reference signals around the user terminal in a random access process or a connection establishment process, and selects a service set for the user terminal according to the measurement result.

optionally, the report result includes one or more of the following items:

optionally, the service set includes:

Optionally, the method further includes:

the network side equipment sends measurement configuration to the user terminal, wherein the measurement configuration comprises one or more of the following items:

Frequency point bandwidth for searching and measuring;

Resource locations where searching and measurements are made;

a characteristic of a reference signal of a first level to be measured;

Optionally, the mobility management includes:

optionally, the mobility management further includes:

And the user terminal performs cross-cell switching between transmission nodes and/or beams in the service set, wherein if the original cell and the target cell cannot share a high-layer protocol, the cross-cell switching needs to reconfigure or reset protocols of a layer two or more, and a layer two transmission state of the user terminal only keeps a PDCP layer state.

an embodiment of the present invention further provides a user terminal, including:

the first measurement module is used for measuring a first level of reference signals in a connected state to obtain a measurement result, wherein the first level of reference signals comprise transmission node level reference signals and/or beam level reference signals;

The generating module is used for generating a reporting result according to the measuring result;

A first sending module, configured to send the report result to a network side device, where the report result is used for the network side device to perform mobility management on a service set of the user equipment, where the service set includes a transmission node and/or a beam.

Optionally, the user terminal further includes:

A second measurement module, configured to measure a reference signal at a cell level, and camp on a cell according to a measurement result;

and a second sending module, configured to measure the surrounding reference signals of the first level in a random access procedure or a connection establishment procedure, and report the measured reference signals to the network side device.

optionally, the generating module is configured to select a reporting result from measurement results of layer three according to a triggered reporting parameter configuration of each transmission node and/or beam, where the measurement result of layer three includes:

Optionally, the report result includes one or more of the following items:

optionally, the service set includes:

optionally, the user terminal further includes:

A first receiving module, configured to receive a measurement configuration sent by the network-side device, where the measurement configuration includes one or more of the following:

Frequency point bandwidth for searching and measuring;

Resource locations where searching and measurements are made;

a characteristic of a reference signal of a first level to be measured;

Optionally, the first measurement module is configured to search and measure a reference signal of a first level according to a parameter of a parameter signal of the first level in a measurement configuration or dedicated signaling in a connected state; or

The first measurement module is used for searching and measuring the reference signal of the first level according to the parameter of the parameter signal of the pre-configured first level in the connection state.

optionally, the mobility management includes:

Optionally, the mobility management includes:

Optionally, the first measurement module is configured to search for a cell-level reference signal of the target cell, acquire downlink synchronization with the target cell, and search and measure a first-level reference signal in the target cell based on the downlink synchronization; or

The first measurement module is used for directly searching and measuring a first level reference signal in the target cell.

optionally, the user terminal further includes:

A second receiving module, configured to receive a system message of the target cell, where the system message is issued by the network side device together with the handover command in a dedicated signaling manner;

Optionally, the mobility management further includes:

and the user terminal performs cross-cell switching between transmission nodes and/or beams in the service set, wherein if the original cell and the target cell cannot share a high-layer protocol, the cross-cell switching needs to reconfigure or reset protocols of a layer two or more, and a layer two transmission state of the user terminal only keeps a Packet Data Convergence Protocol (PDCP) layer state.

an embodiment of the present invention further provides a network side device, including:

an obtaining module, configured to obtain a reporting result sent by a user terminal, where the reporting result is generated by measuring, by the user terminal in a connected state, a first-level reference signal, where the first-level reference signal includes a transmission node-level reference signal and/or a beam-level reference signal;

and the management module is used for carrying out mobility management on a service set of the user terminal according to the report result, wherein the service set comprises transmission nodes and/or beams.

Optionally, the network side device further includes:

a receiving module, configured to receive a measurement result obtained by measuring, by the user equipment, the surrounding reference signals of the first class in a random access process or a connection establishment process, and select a service set for the user equipment according to the measurement result.

Optionally, the report result includes one or more of the following items:

a measurement result of a transmission node and/or a beam of a neighboring cell, where the measurement result is used for the network side device to add the measurement result to the service set, and the link quality of the transmission node and/or the beam of the neighboring cell is higher than the link quality of the transmission node and/or the beam in the service set by a fourth threshold and lasts for a fourth duration, or the link quality of the transmission node and/or the beam of the neighboring cell is higher than a fifth threshold and lasts for a fifth duration:

Optionally, the network side device further includes:

a sending module, configured to send a measurement configuration to the user terminal, where the measurement configuration includes one or more of the following:

frequency point bandwidth for searching and measuring;

resource locations where searching and measurements are made;

a characteristic of a reference signal of a first level to be measured;

Optionally, the mobility management includes:

optionally, the mobility management includes:

Optionally, the mobility management further includes:

the technical scheme of the invention at least has the following beneficial effects:

In the embodiment of the invention, a user terminal measures a first-level reference signal in a connected state to obtain a measurement result, wherein the first-level reference signal comprises a transmission node-level reference signal and/or a beam-level reference signal; the user terminal generates a reporting result according to the measurement result; and the user terminal sends the report result to network side equipment, wherein the report result is used for the network side equipment to carry out mobility management on a service set of the user terminal, and the service set comprises transmission nodes and/or beams. Therefore, the mobility management of the service set of the user terminal can be realized according to the report result of the user terminal, and compared with the prior art that the mobility management can be only realized on one node, the embodiment of the invention can improve the efficiency of the mobility management.

drawings

FIG. 1 is a schematic diagram of a network architecture to which embodiments of the present invention are applicable;

fig. 2 is a flowchart illustrating a mobility management method according to an embodiment of the present invention;

fig. 3 is a schematic diagram of a network scenario according to an embodiment of the present invention;

fig. 4 is a flowchart illustrating another mobility management method according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a user terminal according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of another ue according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of another ue according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of another ue according to an embodiment of the present invention;

Fig. 9 is a schematic structural diagram of a network-side device according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of another network-side device according to an embodiment of the present invention;

fig. 11 is a schematic structural diagram of another network-side device according to an embodiment of the present invention;

fig. 12 is a schematic structural diagram of another ue according to an embodiment of the present invention;

Fig. 13 is a schematic structural diagram of another network-side device according to an embodiment of the present invention.

Detailed Description

in order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.

referring to fig. 1, fig. 1 is a schematic diagram of a network structure to which the embodiment of the present invention is applicable, and as shown in fig. 1, the network structure includes a UE11, a transmission node 12, and a network-side Device 13, where the UE11 may be a terminal-side Device such as a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer), a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), or a Wearable Device (Wearable Device), and it should be noted that a specific type of the UE11 is not limited in the embodiment of the present invention. The transmitting node 12 may be understood as a Transmission Reception Point (TRP), which may be a transmitting node with a complete protocol, such as: the base station or the node may be a transmission node having only layer 1 and/or layer 2, or may be a transmission node having layer 3. It should be noted that the specific type of the transmission node is not limited in the embodiment of the present invention. In addition, one or more source transmission nodes may be included in the network structure. The network side device 13 may be a centralized transmission node (CU), or the network side device 13 may be a transmission node, and the network side device 13 may be a transmission node with a complete protocol, for example: the base station or the node may be a transmission node having only layer 1 and/or layer 2, or may be a transmission node having layer 3. It should be noted that the specific type of the network-side device 13 is not limited in the embodiment of the present invention.

Referring to fig. 2, an embodiment of the present invention provides a mobility management method, as shown in fig. 2, including the following steps:

201. the method comprises the steps that a user terminal measures a first-level reference signal in a connected state to obtain a measurement result, wherein the first-level reference signal comprises a transmission node-level reference signal and/or a beam-level reference signal;

202. The user terminal generates a reporting result according to the measurement result;

203. And the user terminal sends the report result to network side equipment, wherein the report result is used for the network side equipment to carry out mobility management on a service set of the user terminal, and the service set comprises transmission nodes and/or beams.

in this embodiment of the present invention, the Beam (Beam) may be a Beam transmitted by a transmission node, for example: a transmission node transmits beams in the high frequency band and a transmission node may transmit one or more beams at high frequency. The reference signal at the level of the transmission node may be a reference signal transmitted by the transmission node at a low frequency, and a transmission node may transmit one or more reference signals at a low frequency, for example: when a transmission node is an omni-directional antenna, the reference signals are at the transmission node level, when the transmission node is a sector antenna, each sector antenna has different reference signals, when the TRP is in a Beam scanning (Beam scanning) Beam scanning form, the reference signals are at the Beam granularity, namely each Beam has different first level reference signals, and the user terminal distinguishes different beams by the different first level reference signals. In addition, in the embodiment of the present invention, the reference signal of the first level may be denoted by Sync 3. In addition, reference signals can also be understood as measurement signals.

in the above step, the ue may measure reference signals of one or more transmission nodes and/or beams in the connected state, and generate the report result according to the measurement result. The report result may be selected from the measurement results in step 201, or may be generated, which is not limited in this embodiment of the present invention.

in addition, the performing mobility management on the service set of the user terminal may include deleting, adding, or switching transmission nodes and/or beams in the set, and may further include controlling the user terminal to perform switching between transmission nodes and/or beams in the set, and the like.

it should be noted that, in the embodiment of the present invention, a transmission node and/or a beam indicates any one of the transmission node, the beam, and the transmission node and the beam.

in the embodiment of the invention, the steps can be implemented, so that the user terminal can complete various mobility management processes by measuring the reference signal of the first level and adopting different measurement parameters, the complexity and the expense are reduced, the system efficiency is improved, and good user experience is ensured.

optionally, the method further includes:

In this embodiment, the measurement of the reference signal at the cell level may be performed, and the camping to the cell may be performed according to the measurement result. In the embodiment of the present invention, a cell may be understood as a cell formed by a plurality of transmission nodes and/or beams, and the cell may be a cell visible to a user terminal in an Idle state (Idle state), and the cell may also be referred to as an Idle cell. In the cell, the system information may be the same and continuously valid, and the reference signal is transmitted in a broadcast manner, that is, the reference signal at the cell level is transmitted in a broadcast manner, which may be denoted as Sync1 and Sync 2. In addition, while idle UEs move within the area, cell selection and reselection, etc. may be performed based on measurements of Syc1 and Sync 2.

in addition, the above-mentioned camping on the cell may be a cell where the user terminal camps after being turned on, or may be a cell where the user terminal migrates from one cell to another cell. For example: the user terminal is started, cell initial search is carried out, cell residence is carried out after a cell suitable for residence is found, and in the process, search and measurement of Sync1 and Sync2 are mainly carried out; when the user terminal finds that the original cell does not meet the residence condition any more or a more proper cell is worth to reside in the moving process, the user terminal can be moved to a new cell to reside in the new cell, and the process is also based on the measurement of Sync1 and Sync2 of the original cell and the target cell and the determination of the comparison of the measurement results and other operations; when a user terminal has a data transmission requirement and needs to enter a connection state, the user terminal needs to perform a random access process and a connection establishment process first, and in the random access process or the connection establishment process, the user terminal can perform measurement and report based on Sync3 on transmission nodes and/or beams around the user terminal, that is, the user terminal reports the signal reception or quality level of the user terminal to the transmission nodes and/or beams around the user terminal to a network side device, so that the network side device can select a proper service set for the user terminal, for example: a serving transmission node and/or a set of beams, which may also be referred to as a serving TRP/Beam set.

in addition, in the embodiment of the present invention, the selection of the service set may consider basic link quality requirements, for example, the signal reception level between the user terminal and the transmission node and/or Beam or the quality meets a certain threshold, and on the basis of meeting the threshold, the network side selects N with the best quality from the N to configure to the user terminal as the TRP/Beam set.

In this embodiment, the reference signal at the level of the transmission node may be sent by a single transmission node, and each transmission node may send a unique reference signal different from other transmission nodes, where this reference signal may carry an identifier of the transmission node, an identifier of a cell to which the transmission node belongs, and may further include identifiers of transmission nodes within the cell.

Similarly, the reference signal at the beam level may be transmitted by a single beam, and each beam may transmit a specific reference signal different from other transmission nodes, where the reference signal may carry an identifier of the beam, an identifier of a cell to which the beam belongs, and may further include an identifier of the beam in the cell.

When the UE searches for the Sync3 signal, the Sync3 signal may carry the following information:

The identity of a transmission node or beam may be a globally unique identity identifying a particular transmission node or beam; the cell identity may be used to indicate to which cell the transmitting node or beam belongs; the identity of the transmission nodes or beams within a cell may be one that uniquely identifies one transmission node or beam within one cell;

The user terminal can know whether the newly measured transmission node or beam belongs to the same IDLE cell as the transmission node or beam in the current service set or not through the identification information, if the newly measured transmission node or beam belongs to the same cell, the measurement result is processed and reported by using the parameter configuration of the same cell, and if the newly measured transmission node or beam does not belong to the same cell, the parameter configuration of different cells is used.

in addition, in the embodiment of the present invention, the cell-level reference signals may be transmitted by multiple transmission nodes and/or beams in synchronization in the entire cell, for example, Sync1 and Sync2, which are similar to PSS and SSS of LTE and may be used for the user terminal to acquire basic downlink synchronization. In addition, the ue may also perform cell-level received signal detection based on such signals, and select a better cell from the detected signals for camping, i.e., perform cell selection and reselection procedures.

in addition, the embodiment of the present invention further provides a reference signal specific to the user terminal, where such a signal may be a measurement signal configured exclusively by the network side to the user terminal, and may be used for the user terminal to accurately measure a specific transmission node and/or beam. This reference signal is configured based on the user terminals, that is, each user terminal may see a different reference signal due to different configuration. In the embodiment of the invention, the user terminal can also measure and report the specific reference signal of the user terminal in the method, and the network side equipment can carry out mobility management on the service set of the user terminal according to the report result.

in this embodiment, it can be realized that, for the user terminal, the service set configured to the user terminal by the network side may be regarded as or constitute a connected cell of the connected user terminal, that is, the user terminal may perform data transmission with all or part of the transmission nodes and/or beams in the service set. And the transmission nodes and/or beams within the serving set may be transmission nodes and/or beams in one or more cells. For example: as shown in fig. 3, there are 3 TRPs in the connected cell of UE1, 5 TRPs in the connected cell of UE2, and so on. Generally, the transmission nodes and/or beams in the connected cells of the user terminals belong to the same cell, i.e. have the same cell identity, system message and Sync1, Sync2, etc., such as UE2, UE6, etc. in the figure. But it is also possible that TRP/Beam in a connected cell of a user terminal belongs to two or more IDLE cells, e.g. UE3 in the figure.

in this embodiment, the measurement may be performed on the reference signal of the first level sent by the transmission node and/or the beam in the service set, so as to determine whether the link quality of the service transmission node and/or the beam is suitable for continuing to serve the user terminal, and when it is measured that the link quality degradation of a certain transmission node and/or beam satisfies a certain threshold and lasts for a certain duration, the user terminal may report the degradation to the network side device, and the network side device deletes the degradation from the service set.

In addition, the above measurements may also be performed on other transmission nodes and/or beams within the same cell, which may be understood as neighboring transmission nodes and/or beams, i.e. neighboring transmission nodes and/or beams within the serving set. The measurement performed by other transmission nodes and/or beams may be used to determine whether other transmission nodes and/or beams outside the service set have satisfied the condition for serving the user terminal, so as to facilitate the update of the service set at the network side. For example: when the link quality of other neighboring transmission nodes and/or beams not in the current service set is higher than that of other transmission nodes and/or beams in the service set, which satisfy a certain threshold, the service set can be updated, and better other transmission nodes and/or beams can be replaced.

in addition, in this embodiment, the transmission node and/or beam of the neighboring cell may also be measured, where the measurement may be performed on other neighboring transmission nodes and/or beams across the cell, and may also be used to determine whether other neighboring transmission nodes and/or beams outside the service set have satisfied the condition for serving the user terminal, so as to facilitate the network side to update the service set. But may have different parameters than the transmission nodes and/or beams in the same cell in terms of measurement trigger determination conditions, e.g., other neighboring transmission nodes and/or beams across the cell whose measurements need to meet higher thresholds, the timer needs to be maintained longer, mainly because the update service set procedure across the cell is more complicated and therefore needs to be carefully performed to improve communication performance.

in this embodiment, the serving transmission node and/or beam of the connected UE can be continuously updated and switched through the above measurement, so as to ensure that the UE always has the transmission node and/or beam with better link quality to provide data transmission service for the UE as the UE moves.

in this embodiment, different trigger reporting parameter configurations may be provided for different transmission nodes or beams, and these trigger reporting parameter configurations may be preconfigured, or may be issued by a network side device to a user equipment, and so on, for example: the triggering reporting parameter configuration in the service set may be that the link quality deterioration satisfies a first threshold and lasts for a first time period, that is, the measurement result of the transmission node and/or the beam satisfying the condition needs to be reported; the triggering reporting parameter configuration which does not belong to the service set in the same cell may be that the link quality is higher than the link quality of the transmission node and/or the beam in the service set by a second threshold and lasts for a second time period, or the link quality of the adjacent transmission node and/or the beam is higher than a third threshold and lasts for a third time period; the parameter configuration for triggering reporting of the neighboring cell not belonging to the same cell and not belonging to the service set may be that the link quality is higher than the link quality of the transmission node and/or the beam in the service set by a fourth threshold for a fourth duration, or the link quality of the transmission node and/or the beam in the neighboring cell is higher than a fifth threshold for a fifth duration. In an embodiment of the present invention, the first threshold to the fifth threshold and the first time duration to the fifth time duration are not limited.

in addition, the Sync3 signal searched by the ue is measured, generally, the layer one, i.e. the physical layer, may have relatively frequent measurement operations, e.g. 10ms measures a value, and the layer one may also perform certain filtering on the measurement value, e.g. take the average of 4 measurement values within 40ms as the layer one measurement value, report the layer one measurement value to the layer three, i.e. the RRC layer, and the RRC layer measurement processing period will be longer, e.g. 200ms, and perform layer three filtering on the measurement value in 200ms, thereby forming a layer three measurement value. The layer three measurement values are compared with various measurement trigger parameters, for example, above or below a threshold, above the serving transport node and/or the beam measurement value satisfying the threshold requirement, and for a certain duration, when these measurement trigger conditions are satisfied, the measurement reporting is triggered.

Optionally, the report result includes one or more of the following items:

Wherein the link quality of the neighboring transmission node and/or beam is higher than the link quality of the transmission node and/or beam in the service set by a second threshold and lasts for a second duration, where the link quality of the neighboring transmission node and/or beam is higher than the link quality of the transmission node and/or beam with the highest link quality in the service set by the second threshold and lasts for the second duration, for example: the second duration is higher than 3 dB; or may be a second threshold higher than the link quality of the transmission node and/or beam currently served by the user terminal for a second duration, although a second threshold higher than the average link quality in the serving set is also possible. The same is true for the measurement results of the transmission nodes and/or beams of the neighboring cells, which is not described in detail.

in this embodiment, effective mobility management of the service set may be implemented according to the report result, for example: add, delete, or switch these managements. For example: when the measurement report meets the trigger condition, the user terminal performs the measurement report to the network side, the network side receives the measurement report of the user terminal, processes the measurement report, reconfigures the service set of the UE according to the requirement, removes the transmission nodes and/or beams which are not suitable for serving the user terminal, and may add new transmission nodes and/or beams for serving the user terminal. In addition, the user terminal may also receive a service set change message sent by the network side, remove the old transmission node and/or beam, add a new transmission node and/or beam, and possibly perform a re-access and uplink synchronization process to the new transmission node and/or beam, and then perform normal data transmission.

It should be noted that, in the embodiment of the present invention, the user terminal may perform automatic detection and measurement of the Sync3 of the neighboring transmission nodes and/or beams according to preconfigured or a priori information. According to the characteristics of the Sync3, such as belonging to the inside of the service set, belonging to the outside of the service set but in the same cell, or being located in different Idle cells, distinguishing different levels, processing the measurement result of the Sync3 and triggering the corresponding measurement event, and reporting the triggered measurement result to the network side. The network side changes the service set according to the measurement report of the UE, including removing transmission nodes and/or beams in the service set, adding service transmission nodes and/or beams in the cell, and updating the service set across the cells.

optionally, the service set includes:

In this embodiment, it may be achieved that after the user terminal enters the connected state, a basic serving transport node and/or beam configuration may be obtained. That is, one transmission node and/or beam initially accessed by the user terminal is used as an initial service set of the user terminal, and then other adjacent transmission nodes and/or beams meeting the threshold requirement are added into the service set according to the step-by-step measurement of the adjacent transmission node and/or beam Sync3 by the user terminal. In addition, the UE may also report the measurement result of Sync3 for neighboring transmission nodes and/or beams in the initial access process, and the network side selects the first N transmission nodes and/or beams that meet the threshold requirement as the service set of the UE and configures the service set to the UE. Here, the neighboring transmission node and/or beam may be a neighboring transmission node and/or beam to the transmission node and/or beam served before the initial procedure.

Optionally, the method further includes:

frequency point bandwidth for searching and measuring;

resource locations where searching and measurements are made;

A characteristic of a reference signal of a first level to be measured;

The frequency point bandwidth for searching and measuring can be used for indicating the frequency point bandwidth on which the user terminal searches and measures; the resource locations for searching and measuring can be used to indicate which resource locations the user terminal searches and measures; the characteristics of the reference signal of the first level requiring measurement can be used to indicate which characteristics the Sync3 signal requiring measurement of the user terminal has, for example, a specific Sync3 signal can be configured to be measured; the parameter configuration for triggering reporting of the measurement result of the transmission node and/or the beam in the service set may be parameter configuration of the measurement result and the triggering manner of the transmission node and/or the beam in the service set, for example, reporting when the measurement result is lower than the threshold M1 and lasts for a time T1; the parameter configuration for triggering reporting of the measurement result of the transmission node and/or the beam in the same cell outside the service set may be parameter configuration of the measurement result and the triggering manner of the transmission node and/or the beam outside the service set but belonging to the same cell, for example, reporting when the measurement result is higher than the threshold M2 and lasts for a time T2; the parameter configuration for triggering reporting of the measurement result of the transmission node and/or beam of the neighboring cell outside the service set may be the parameter configuration of the measurement result and the triggering manner for the transmission node and/or beam outside the service set but belonging to a different cell, for example, reporting when the measurement result is higher than the threshold M3 and lasts for a time T3.

the user terminal can accurately detect the reference signal of the first level through the measurement configuration and reasonably report the reference signal.

in this embodiment, two measurement modes for the reference signal of the first level are provided, one is that the network side informs the user terminal to search for the parameters of the Sync3 signal, such as the precise resource location, the period, etc. of the Sync3 signal in the measurement configuration or other dedicated signaling; the other is that the UE obtains the basic parameters of the Sync3 signal according to a pre-configured manner, such as standard specification or reading in broadcast, for example, the location where the Sync3 signal may appear, and the UE performs a full search and blind detection on all possible locations. Through the two modes, the measurement of the reference signal of the first level can be flexibly carried out.

optionally, the mobility management includes:

in this embodiment, handover within the cell of the user can be achieved without reconfiguration or resetting of layer two and more than layer two protocols, for example: radio Link Control (RLC) and above protocols are reconfigured or reset, the high-level transmission state of the UE is continued, and only the configuration of the physical layer needs to be updated and reset. In addition, the user terminal switches within the range of the cell, generally without interface signaling at the base station (NB) level, but it is not excluded that there will be interface signaling messages between different TRPs within the NB or between a CU and a distributed transmission node (DU, Distribution Unit) node. Thereby reducing overhead of system signaling.

it should be noted that the above-mentioned handover is only a part of the mobility management, and the mobility management may also include deleting, adding or switching transmission nodes and/or beams within the service set.

Optionally, the mobility management includes:

In this embodiment, it is possible to switch the service set of the original cell to the service set of the target cell. In this way, the original cell and the target cell can perform a handover preparation process, that is, the original cell informs the target cell of information such as a measurement result of the user terminal and the configuration of the original cell, after the target cell successfully accepts, the configuration of the user terminal in the target cell (i.e., the new cell) is sent to the user terminal through the original cell, then the user terminal disconnects the connection with the original service set in the original cell, an access process is initiated to the new service set in the target cell, and then normal data transmission is started in the target cell.

in addition, the network side can also add part of the transmission nodes and/or beams of the target cell into the service set of the user terminal, which is equivalent to the transmission nodes and/or beams of at least two cells in the service set of the user terminal. In this way, the original cell may negotiate with the target cell, and the configuration of the transmission node and/or beam under the target cell is determined by the target cell. And the user terminal operates in the new service set, and is also negotiated and decided by the target cell and the original cell. In addition, here, the target cell may be a neighboring cell of the original cell, and the original cell may be a cell where the terminal camps before handover.

In addition, it should be noted that the network side device may issue the measurement configuration parameters of the same cell and the measurement configuration parameters of the cross-cell together when issuing the measurement configuration, so that the energy of the user terminal may be timely performed in the cross-cell handover process or measurement.

Optionally, in this embodiment, the measuring, by the ue in the connected state, the reference signal of the first level includes:

In this embodiment, two embodiments of searching and measuring are provided, one is signal searching of the user terminal advanced Sync1 and Sync2 to obtain basic downlink synchronization with a target cell, and then searching and measuring of Sync3 are performed; the other is that the user terminal directly searches and measures the Sync3 signal, in which case the measurement events of the user terminal can be reduced, but the Sync3 signal needs to be designed to resist a certain difference of downlink received signals, which means that the local cell and the target cell have a certain difference of downlink received signals.

Similarly, the measurement signal processing across the cell may also have different parameters than the measurement of the same cell, such as different layer one measurement periods, layer three measurement periods, or different thresholds and different duration requirements. Mainly because of the handover across cells, the process is more complex and requires careful decision.

optionally, the method further includes:

in this embodiment, since the ue operates in a new transmission node and/or beam in the target cell, basic system information needs to be obtained for the connected transmission operation. In order to enable the ue to operate in a new transmission node and/or beam in the target cell as soon as possible, the relevant system messages required for the operation in the connected state are sent to the ue in a dedicated signaling manner together with the handover command. The user terminal receives the command, if the downlink synchronization is not established with the new transmission node and/or the beam in the target cell, the user terminal firstly reads the Sync1 and the Sync2 of the target cell to establish the downlink synchronization, then initiates a random access process to the new transmission node and/or the beam in the target cell to obtain the uplink synchronization, and starts working after mutually notifying with the network.

Optionally, the mobility management further includes:

In this embodiment, the user terminal can be switched between cells, and when the original cell and the target cell belong to different NBs, interface signaling interaction at NB level is required. For the user terminal, switching is carried out in a cross-cell range, if the original cell and the target cell cannot share the higher layer protocol, the protocol of RLC and the following protocol needs to be reconfigured or reset, and the L2 transmission state of the UE is continued only in the PDCP layer, so that the overhead of system signaling is reduced.

it should be noted that, in the embodiment of the present invention, various optional implementations described above may be implemented in combination with each other, or may be implemented separately, and the embodiment of the present invention is not limited thereto.

Referring to fig. 4, an embodiment of the present invention provides another mobility management method, as shown in fig. 4, including the following steps:

401. The method comprises the steps that network side equipment obtains a reporting result sent by a user terminal, wherein the reporting result is generated by measuring a first-level reference signal when the user terminal is in a connected state, and the first-level reference signal comprises a transmission node-level reference signal and/or a beam-level reference signal;

402. and the network side equipment performs mobility management on a service set of the user terminal according to the report result, wherein the service set comprises transmission nodes and/or beams.

optionally, the method further includes:

Optionally, the report result includes one or more of the following items:

Optionally, the service set includes:

Optionally, the method further includes:

Frequency point bandwidth for searching and measuring;

Resource locations where searching and measurements are made;

a characteristic of a reference signal of a first level to be measured;

optionally, the mobility management includes:

Optionally, the mobility management includes:

optionally, the mobility management further includes:

It should be noted that, this embodiment is used as an implementation of the network side device corresponding to the embodiment shown in fig. 2, and for a specific implementation of this embodiment, reference may be made to the relevant description of the embodiment shown in fig. 2, so as to avoid repeated description, and this embodiment is not described again. In this embodiment, the efficiency of mobility management is also improved.

referring to fig. 5, an embodiment of the present invention provides a user terminal, where the user terminal 500 includes the following modules:

A first measurement module 501, configured to measure a first level of reference signals in a connected state to obtain a measurement result, where the first level of reference signals includes a transmission node level reference signal and/or a beam level reference signal;

a generating module 502, configured to generate a reporting result according to the measurement result;

A first sending module 503, configured to send the report result to a network side device, where the report result is used for the network side device to perform mobility management on a service set of the user equipment, where the service set includes a transmission node and/or a beam.

Optionally, as shown in fig. 6, the user terminal 500 further includes:

a second measurement module 504, configured to measure a cell-level reference signal, and camp on a cell according to a measurement result;

a second sending module 505, configured to measure the surrounding reference signals of the first level in a random access procedure or a connection establishment procedure, and report the measured reference signals to the network side device.

optionally, the generating module 502 is configured to select a reporting result from measurement results of layer three according to a triggered reporting parameter configuration of each transmission node and/or beam, where the measurement result of layer three includes:

Optionally, the report result includes one or more of the following items:

optionally, the service set includes:

Optionally, as shown in fig. 7, the user terminal 500 further includes:

a first receiving module 506, configured to receive a measurement configuration sent by the network side device, where the measurement configuration includes one or more of the following:

frequency point bandwidth for searching and measuring;

Resource locations where searching and measurements are made;

a characteristic of a reference signal of a first level to be measured;

optionally, the first measurement module 501 is configured to search and measure a reference signal of a first level according to a parameter of a parameter signal of the first level in a measurement configuration or dedicated signaling in a connected state; or

The first measurement module 501 is configured to search and measure a first level of reference signals according to a parameter of a preconfigured first level of parameter signals in a connected state.

Optionally, the mobility management includes:

optionally, the mobility management includes:

optionally, the first measurement module 501 is configured to search for a cell-level reference signal of the target cell, acquire downlink synchronization with the target cell, and search and measure a first-level reference signal in the target cell based on the downlink synchronization; or

The first measurement module 501 is configured to directly search for and measure a first level of reference signals in the target cell.

optionally, as shown in fig. 8, the user terminal 500 further includes:

a second receiving module 507, configured to receive a system message of the target cell, where the system message is issued by the network side device together with the handover command in a dedicated signaling manner;

Optionally, the mobility management further includes:

It should be noted that, in this embodiment, the UE 500 may be a UE in any implementation manner in the method embodiment of the present invention, and any implementation manner of the UE in the method embodiment of the present invention may be implemented by the UE 500 in this embodiment, so as to achieve the same beneficial effects, and details are not described here.

Referring to fig. 9, an embodiment of the present invention provides a network side device, where the network side device 900 includes the following modules:

An obtaining module 901, configured to obtain a reporting result sent by a user terminal, where the reporting result is generated by measuring, by the user terminal in a connected state, a first-level reference signal, where the first-level reference signal includes a transmission node-level reference signal and/or a beam-level reference signal;

A management module 902, configured to perform mobility management on a service set of the ue according to the report result, where the service set includes a transmission node and/or a beam.

optionally, as shown in fig. 10, the network-side device 900 further includes:

a receiving module 903, configured to receive a measurement result obtained by measuring, by the ue, the surrounding reference signals of the first level in a random access process or a connection establishment process, and select a service set for the ue according to the measurement result.

optionally, the report result includes one or more of the following items:

Optionally, the service set includes:

Optionally, as shown in fig. 11, the network-side device 900 further includes:

A sending module 904, configured to send a measurement configuration to the ue, where the measurement configuration includes one or more of the following:

frequency point bandwidth for searching and measuring;

resource locations where searching and measurements are made;

A characteristic of a reference signal of a first level to be measured;

optionally, the mobility management includes:

optionally, the mobility management further includes:

It should be noted that, in this embodiment, the network side device 900 may be a network side device according to any implementation manner in the method embodiment of the present invention, and any implementation manner of the UE in the method embodiment of the present invention may be implemented by the network side device 900 in this embodiment, so as to achieve the same beneficial effects, which is not described herein again.

Referring to fig. 12, there is shown a structure of a user terminal including: a processor 1200, a transceiver 1210, a memory 1220, a user interface 1230, and a bus interface, wherein:

A processor 1200 for reading the program in the memory 1220 and executing the following processes:

measuring, by the transceiver 1210, a first level of reference signals in a connected state to obtain a measurement result, the first level of reference signals including transmission node level reference signals and/or beam level reference signals;

generating a reporting result according to the measuring result;

Sending the report result to a network side device through a transceiver 1210, where the report result is used for the network side device to perform mobility management on a service set of the user terminal, where the service set includes a transmission node and/or a beam.

among other things, a transceiver 1210 for receiving and transmitting data under the control of the processor 1200.

in fig. 12, the bus architecture may include any number of interconnected buses and bridges, with various circuits being linked together, particularly one or more processors represented by processor 1200 and memory represented by memory 1220. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 1210 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. For different user devices, the user interface 1230 may also be an interface capable of interfacing with a desired device externally, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 1200 is responsible for managing the bus architecture and general processing, and the memory 1220 may store data used by the processor 1200 in performing operations.

optionally, the processor 1200 is further configured to:

Measuring a reference signal of a cell level through the transceiver 1210 and camping on a cell according to a result of the measurement;

And measuring the surrounding reference signals of the first level in a random access process or a connection establishment process through the transceiver 1210, and reporting the measured reference signals to the network side device.

Optionally, the generating a report result according to the measurement result includes:

selecting a reporting result from measurement results of a layer three according to the triggered reporting parameter configuration of each transmission node and/or beam, wherein the measurement results of the layer three include:

optionally, the report result includes one or more of the following items:

Optionally, the service set includes:

optionally, the processor 1200 is further configured to:

Receiving, by the transceiver 1210, a measurement configuration sent by the network-side device, where the measurement configuration includes one or more of:

Frequency point bandwidth for searching and measuring;

Resource locations where searching and measurements are made;

a characteristic of a reference signal of a first level to be measured;

Optionally, the measuring the reference signal of the first level in the connected state includes:

Searching and measuring a reference signal of a first level according to a parameter of a parameter signal of the first level in a measurement configuration or a dedicated signaling in a connected state; or

And searching and measuring the reference signal of the first level according to the parameter of the pre-configured parameter signal of the first level in the connection state.

optionally, the mobility management includes:

searching the reference signal of the target cell at the cell level, acquiring downlink synchronization with the target cell, and searching and measuring the reference signal of the first level in the target cell based on the downlink synchronization; or

searching and measuring directly for a first level of reference signals within the target cell.

optionally, the processor 1200 is further configured to:

Receiving the system message of the target cell issued by the network side equipment together with the switching command in a special signaling mode;

optionally, the mobility management further includes:

it should be noted that, in this embodiment, the user terminal may be a user terminal in any implementation manner in the method embodiment of the present invention, and any implementation manner of the user terminal in the method embodiment of the present invention may be implemented by the user terminal in this embodiment, and the same beneficial effects are achieved, and details are not described here.

referring to fig. 13, there is shown a structure of a transmission node, which is a target transmission node, the transmission node including: a processor 1300, a transceiver 1310, a memory 1320, a user interface 1330, and a bus interface, wherein:

A processor 1300, for reading the program in the memory 1320, for executing the following processes:

obtaining a reporting result sent by a user equipment through a transceiver 1310, where the reporting result is generated by measuring a first-level reference signal by the user equipment in a connected state, and the first-level reference signal includes a transmission node-level reference signal and/or a beam-level reference signal;

And performing mobility management on a service set of the user terminal according to the report result, wherein the service set comprises transmission nodes and/or beams.

among other things, the transceiver 1310 is used for receiving and transmitting data under the control of the processor 1300.

In fig. 13, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 1300 and various circuits of memory represented by memory 1320 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 1310 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. User interface 1330 may also be an interface capable of interfacing with a desired device for different user devices, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 1300 is responsible for managing the bus architecture and general processing, and the memory 1320 may store data used by the processor 1300 in performing operations.

optionally, the processor 1300 is further configured to:

receiving, by the transceiver 1310, a measurement result of the ue measuring the surrounding first level of reference signals in a random access procedure or a connection establishment procedure, and selecting a service set for the ue according to the measurement result.

optionally, the report result includes one or more of the following items:

optionally, the service set includes:

optionally, the processor 1300 is further configured to:

transmitting, by the transceiver 1310, a measurement configuration to the user terminal, wherein the measurement configuration comprises one or more of:

frequency point bandwidth for searching and measuring;

resource locations where searching and measurements are made;

a characteristic of a reference signal of a first level to be measured;

optionally, the mobility management includes:

Optionally, the mobility management includes:

Optionally, the mobility management further includes:

it should be noted that, in this embodiment, the network-side device may be a network-side device in any implementation manner in the method embodiment of the present invention, and any implementation manner of the network-side device in the method embodiment of the present invention may be implemented by the network-side device in this embodiment, so as to achieve the same beneficial effects, and details are not described here.

In the several embodiments provided in the present application, it should be understood that the disclosed method and apparatus may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be physically included alone, or two or more units may be integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.

The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) to execute some steps of the transceiving method according to various embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

while the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A mobility management method, comprising:

the user terminal sends the report result to a network side device, and the report result is used for the network side device to perform mobility management on a service set of the user terminal, wherein the service set comprises transmission nodes and/or beams;

wherein the mobility management comprises:

The user terminal performs switching in the same cell range between transmission nodes and/or beams in the service set, wherein the switching in the same cell range keeps the transmission state of protocols of layer two and more than layer two, and only updates and resets the configuration of layer one; or

2. the method of claim 1, wherein the method further comprises:

3. The method of claim 2, wherein transmitting the node-level reference signal comprises: the specific reference signals sent by each transmission node are different;

4. The method of claim 3, wherein the first level of reference signals comprises one or more of:

5. the method according to claim 1, wherein the serving set comprises transmission nodes and/or beams belonging to the same cell; or

6. the method of any one of claims 1-5, wherein the user terminal measuring the first level of reference signals while in a connected state comprises one or more of:

7. the method of any one of claim 6, wherein the generating, by the UE, a report result according to the measurement result comprises:

8. The method of claim 7, wherein the reporting result comprises one or more of:

9. The method of any of claims 1-5, wherein the set of services comprises:

10. The method of any one of claims 1-5, further comprising:

Frequency point bandwidth for searching and measuring;

resource locations where searching and measurements are made;

A characteristic of a reference signal of a first level to be measured;

11. The method of claim 10, wherein the measuring of the first level of reference signals by the user terminal while in a connected state comprises:

12. the method of claim 1, wherein the user terminal measuring the reference signals of the first level while in the connected state comprises:

13. the method of claim 1, wherein the method further comprises:

14. the method of claim 1, wherein the mobility management further comprises:

15. A mobility management method, comprising:

The network side equipment performs mobility management on a service set of the user terminal according to the report result, wherein the service set comprises transmission nodes and/or beams;

wherein the mobility management comprises:

16. The method of claim 15, wherein the method further comprises:

17. the method of claim 16, wherein transmitting the node-level reference signal comprises: the specific reference signals sent by each transmission node are different;

the beam level reference signals include: a unique reference signal is transmitted by each beam and the unique reference signals transmitted by different beams are different.

18. The method of claim 17, wherein the first level of reference signals comprises one or more of:

19. the method according to claim 15, wherein the serving set comprises transmission nodes and/or beams belonging to the same cell; or

20. the method of any one of claims 15-19, wherein the reporting result comprises one or more of:

21. the method of any one of claims 15-19, wherein the set of services comprises:

22. the method of any one of claims 15-19, further comprising:

frequency point bandwidth for searching and measuring;

Resource locations where searching and measurements are made;

A characteristic of a reference signal of a first level to be measured;

23. the method of claim 15, wherein the mobility management further comprises:

24. a user terminal, comprising:

A first sending module, configured to send the report result to a network side device, where the report result is used for the network side device to perform mobility management on a service set of the user equipment, where the service set includes a transmission node and/or a beam;

wherein the mobility management comprises:

25. the user terminal of claim 24, wherein the user terminal further comprises:

26. The user terminal of claim 25, wherein the transmission node level reference signal comprises: the specific reference signals sent by each transmission node are different;

27. the user terminal of claim 26, wherein the first level of reference signals comprises one or more of the following information:

28. The user terminal according to claim 24, wherein the serving set comprises transmission nodes and/or beams belonging to the same cell; or

29. The user terminal of any of claims 24-28, wherein the user terminal measuring the reference signal of the first level while in the connected state comprises one or more of:

30. The ue of claim 29, wherein the generating module is configured to select the reporting result from layer three measurement results according to a triggered reporting parameter configuration of each transmission node and/or beam, where the layer three measurement results include:

31. the ue of claim 30, wherein the reporting result comprises one or more of the following:

32. The user terminal of any of claims 24-28, wherein the set of services comprises:

33. the user terminal according to any of claims 24-28, wherein the user terminal further comprises:

Frequency point bandwidth for searching and measuring;

Resource locations where searching and measurements are made;

a characteristic of a reference signal of a first level to be measured;

34. The ue according to claim 33, wherein the first measurement module is configured to search and measure the reference signal of the first level according to a parameter of the parameter signal of the first level in a measurement configuration or dedicated signaling in the connected state; or

35. the ue of claim 24, wherein the first measurement module is configured to search for a reference signal at a cell level of the target cell, acquire downlink synchronization with the target cell, and search for and measure a reference signal at a first level in the target cell based on the downlink synchronization; or

36. The user terminal of claim 24, wherein the user terminal further comprises:

37. The user terminal of claim 24, wherein the mobility management further comprises:

38. A network-side device, comprising:

A management module, configured to perform mobility management on a service set of the user equipment according to the report result, where the service set includes a transmission node and/or a beam;

wherein the mobility management comprises:

39. The network-side device of claim 38, wherein the network-side device further comprises:

40. the network-side device of claim 39, wherein the transmitting node-level reference signal comprises: the specific reference signals sent by each transmission node are different;

41. the network-side device of claim 40, wherein the first level of reference signals comprises one or more of the following information:

42. The network-side device of claim 38, wherein the serving set includes transmission nodes and/or beams belonging to a same cell; or

43. the network-side device of any one of claims 38 to 42, wherein the reporting result includes one or more of the following:

44. The network-side device of any one of claims 38-42, wherein the set of services comprises:

45. The network-side device of any one of claims 38-42, wherein the network-side device further comprises:

frequency point bandwidth for searching and measuring;

Resource locations where searching and measurements are made;

A characteristic of a reference signal of a first level to be measured;

46. The network-side device of claim 38, wherein the mobility management further comprises: