CN113260003B - Method for switching network cells and electronic equipment - Google Patents

Method for switching network cells and electronic equipment Download PDF

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Publication number
CN113260003B
CN113260003B CN202010090697.1A CN202010090697A CN113260003B CN 113260003 B CN113260003 B CN 113260003B CN 202010090697 A CN202010090697 A CN 202010090697A CN 113260003 B CN113260003 B CN 113260003B
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access terminal
cell
nsa
serving cell
capability
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CN113260003A (en
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夏龙根
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China Mobile Communications Group Co Ltd
China Mobile Group Guangdong Co Ltd
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China Mobile Communications Group Co Ltd
China Mobile Group Guangdong Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/00837—Determination of triggering parameters for hand-off
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data

Abstract

The invention discloses a method for switching network cells and electronic equipment, which are used for solving the problem of unreasonable network resource utilization in the prior art. The scheme comprises the following steps: the serving cell obtains NSA capability of the access terminal; if the NSA capability of the access terminal does not match the NSA capability of the serving cell, performing cell switching of the access terminal under the condition that the signal strength of the access terminal in the serving cell is lower than a first switching threshold; and if the NSA capability of the access terminal is matched with the NSA capability of a serving cell, performing cell switching of the access terminal under the condition that the signal strength of the access terminal in the serving cell is lower than a second switching-out threshold, wherein the first switching-out threshold is higher than the second switching-out threshold. Helping to leave the resources of the serving cell to the matched terminals. The use experience of the user is optimized, the waste of network resources is avoided, the reasonable distribution of the network resources is realized, and the network resources are fully utilized.

Description

Method for switching network cells and electronic equipment
Technical Field
The present invention relates to the field of communications, and in particular, to a method and an electronic device for switching network cells.
Background
In the field of communications, different network architectures may meet different communications requirements. Non-independent Networking (NSA) is a network architecture based on a variety of networks. For example, as shown in fig. 1, the non-independent networking may include a 4G (the 4th generation mobile communication technology) network and a 5G (the 5th generation mobile communication technology) network, where the signaling of 5G is carried by the 4G network, and the Radio resources of the 5G NR (New Radio) base station are allocated by the 4G control. Wherein the 4G base station used to control allocation of 5G NR resources may be referred to as an anchor point.
In the early stage of 5G networking, coverage of 5G base stations is often smaller than that of 4G or other networks, and 5G network resources are relatively limited. How to reasonably switch network cells of a mobile terminal so as to reasonably utilize network resources is a technical problem to be solved by the application.
Disclosure of Invention
An embodiment of the application aims to provide a method and electronic equipment for switching network cells, which are used for solving the problem of unreasonable network resource utilization in the prior art.
In a first aspect, a method for switching network cells is provided, including:
the serving cell obtains NSA capability of the access terminal;
if the NSA capability of the access terminal does not match the NSA capability of the serving cell, performing cell switching of the access terminal under the condition that the signal strength of the access terminal in the serving cell is lower than a first switching threshold;
and if the NSA capability of the access terminal is matched with the NSA capability of a serving cell, performing cell switching of the access terminal under the condition that the signal strength of the access terminal in the serving cell is lower than a second switching-out threshold, wherein the first switching-out threshold is higher than the second switching-out threshold.
In a second aspect, there is provided an electronic device comprising:
an acquisition module for acquiring NSA capability of the access terminal;
a first handover module that performs a cell handover of the access terminal if the NSA capability of the access terminal does not match the NSA capability of a serving cell, if the signal strength of the access terminal at the serving cell is below a first handover threshold;
and if the NSA capability of the access terminal is matched with the NSA capability of a serving cell, performing cell switching of the access terminal under the condition that the signal strength of the access terminal in the serving cell is lower than a second switching-out threshold, wherein the first switching-out threshold is higher than the second switching-out threshold.
In a third aspect, there is provided a mobile terminal comprising a processor, a memory and a computer program stored on the memory and executable on the processor, which when executed by the processor performs the steps of the method as in the first aspect.
In a fourth aspect, there is provided a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method as in the first aspect.
In the embodiment of the application, a serving cell acquires NSA capability of an access terminal; if the NSA capability of the access terminal does not match the NSA capability of the serving cell, performing cell switching of the access terminal under the condition that the signal strength of the access terminal in the serving cell is lower than a first cut-out threshold; if the NSA capability of the access terminal matches the NSA capability of the serving cell, performing cell handoff of the access terminal if the signal strength of the access terminal at the serving cell is below a second handoff threshold, wherein the first handoff threshold is higher than the second handoff threshold. Because the first cut-out threshold is higher than the second cut-out threshold in this embodiment, cell switching is easier to be performed when the NSA capability of the access terminal is not matched with the NSA capability of the serving cell, and thus resources of the serving cell are reserved for the matched terminal. In addition, when the NSA capability of the access terminal is matched with the NSA capability of the serving cell, the cell switching is difficult to be performed, so that the time of the access terminal residing in the current serving cell is prolonged, and the use experience of a user is optimized. And the network resources of the anchor point cell are prevented from being wasted, so that reasonable distribution of the network resources is realized, and the network resources are fully utilized.
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 specification, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
FIG. 1 is a schematic diagram of a non-independent networking architecture according to an embodiment of the present invention.
Fig. 2 is a schematic coverage diagram of an NSA network anchor base station and a 5G base station provided in an embodiment of the present invention;
fig. 3 is a schematic flow chart of a method for switching network cells according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a cell handover condition according to an embodiment of the present invention;
fig. 5 is a second flowchart of a method for switching network cells according to an embodiment of the present invention;
fig. 6 is a third flowchart of a method for switching network cells according to an embodiment of the present invention;
fig. 7 is a second schematic diagram of a cell handover condition according to an embodiment of the present invention;
fig. 8 is a flowchart of a method for switching network cells according to an embodiment of the present invention;
fig. 9 is a schematic diagram of a switching policy selection flow provided in an embodiment of the present invention;
fig. 10 is a schematic diagram of network resource allocation according to an embodiment of the present invention;
fig. 11 is a schematic structural view of an electronic device of the present application.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention. The reference numerals in the present application are only used to distinguish the steps in the scheme, and are not used to limit the execution sequence of the steps, and the specific execution sequence controls the description in the specification.
The scheme provided in this embodiment may be applied to various Non-independent Networking (NSA), and fig. 1 shows a Non-independent networking architecture, where EPC (Evolved Packet Core) is a 4G core network and LTE (long Term Evolution ) is a 4G base station. The dashed line may refer to the control plane, which may be a channel used to send signaling needed to manage, schedule resources. The solid line refers to the user plane, which may refer to the particular data channel of the sending user.
The non-independent networking architecture shown in fig. 1 is a 5G network architecture attached to a 4G network, where the network architecture carries 5G signaling by the 4G network, and controls allocation of radio resources of 5G NR base stations through the 4G, where the 4G base stations used to control allocation of 5G NR resources are called anchor points. Fig. 2 is a schematic diagram of NSA network anchor base station and 5G base station coverage, where dotted hatching shows 5G base station signal coverage.
In the NSA network architecture, a terminal with NSA capability can realize the access and mobility management of a 5G NR network through a 4G anchor point. For example, a better-coverage FDD1800 cell can be used as an anchor cell of the NSA network, so as to improve the network access capability of the NSA terminal and reduce the handover.
Because the NSA network is accessed by adopting a 4G anchor point mode, the coverage area of the 5G NR base station is far inferior to that of the FDD1800 network and 4G other networks in the initial stage of 5G network construction. Therefore, in the area with incomplete coverage of the NSA network, a part of FDD1800 cells are configured as NSA network anchor points and can access the 5G network; while a part of FDD1800 cells are not equipped with NSA network anchor points and cannot access 5G base stations. This makes it impossible for NSA terminals located partly in the vicinity of 5G NR base stations to use the 5G network because there is no anchor cell to camp on.
In addition, even in areas where NSA network coverage is relatively complete, anchor cell coverage is generally greater than coverage of 5G NR base stations due to frequency bands. Referring to fig. 2, the NSA terminal is located at the edge of the 5G NR base station, and the anchor cell signal is still strong, so that the NSA terminal is not switched to the adjacent 5G NR base station in time, thereby causing the problem of reduced sensing of the NSA terminal.
In order to solve the problems in the prior art, an embodiment of the present application provides a method for switching network cells, as shown in fig. 3, including the following steps:
s31: the serving cell obtains NSA capability of the access terminal;
s32: if the NSA capability of the access terminal does not match the NSA capability of the serving cell, performing cell switching of the access terminal under the condition that the signal strength of the access terminal in the serving cell is lower than a first switching threshold;
s33: and if the NSA capability of the access terminal is matched with the NSA capability of a serving cell, performing cell switching of the access terminal under the condition that the signal strength of the access terminal in the serving cell is lower than a second switching-out threshold, wherein the first switching-out threshold is higher than the second switching-out threshold.
In the solution provided in the embodiment of the present application, the serving cell may be a cell in which the access terminal currently resides. In step S31, the serving cell may obtain NSA capability information of the access terminal, for example, according to registration information of the access terminal, so as to determine whether the access terminal has NSA capability.
The signal strength RSRP of the access terminal in the serving cell may be affected by factors such as location and building, in this embodiment, the signal strength change curve of the access terminal in the serving cell is shown in fig. 4, where the abscissa is time T, the ordinate is the signal strength RSRP of the access terminal in the serving cell, and the first cut-out threshold is M 1 The second cut-out threshold is M 2 . For convenience of explanation, in the embodiment of the present application, the serving cell with NSA capability is abbreviated as an anchor cell, the serving cell without NSA capability is abbreviated as a non-anchor cell, the access terminal with NSA capability is abbreviated as an NSA terminal, and the access terminal without NSA capability is abbreviated as a non-NSA terminal. The following details the present scheme:
case one: the NSA capability of the access terminal does not match the NSA capability of the serving cell.
Specifically, case one of the present embodiments may include an access terminal having NSA capability and a serving cell not having NSA capability, and an access terminal not having NSA capability and a serving cell having NSA capability.
When the NSA capability of the access terminal does not match the NSA capability of the serving cell, the experience of the access terminal is often poor, and the resources of the serving cell cannot be reasonably utilized. Specifically, when the non-NSA terminal accesses the anchor cell, the non-NSA terminal cannot utilize the 5G resources of the anchor cell, thereby wasting the 5G resources. When the NSA terminal accesses the non-anchor cell, the non-anchor cell can not provide 5G resources, so that the NSA terminal has no 5G resources available.
In order to avoid resource waste and optimize user experience, the signal strength of the access terminal in the service cell is lower than that of the first schemeAnd executing the cell switching of the access terminal under the condition of the cut-out threshold. Referring to FIG. 4, M 1 For the first cut-out threshold, then at T 1 After the moment, a cell handover of the access terminal may be performed.
And a second case: the NSA capability of the access terminal matches the NSA capability of the serving cell.
Specifically, the first case of this embodiment may include an access terminal having NSA capability and a serving cell also having NSA capability, and an access terminal not having NSA capability and a serving cell also not having NSA capability.
When the NSA capability of the access terminal is matched with the NSA capability of the serving cell, the experience of the access terminal is often better, and the resources of the serving cell can be reasonably utilized. Specifically, when a non-NSA terminal accesses a non-anchor cell, the non-NSA terminal uses 4G resources with the non-anchor cell. When the NSA terminal accesses the anchor point cell, the NSA terminal uses 5G resources by using the anchor point cell. In this case, the functions supported by the terminal match those provided by the cell.
In order to keep the access terminal and the serving cell in a matched state as much as possible, the scheme performs cell switching of the access terminal under the condition that the signal strength of the serving cell is lower than a second cut-out threshold. Referring to FIG. 4, M 2 For the second cut-out threshold, then at T 2 After the moment, cell switching of the access terminal is performed again.
From an analysis of the above two cases, it can be known that, by the scheme provided in this embodiment, the time for performing cell handover can be determined according to whether the NSA capability of the access terminal matches the NSA capability of the serving cell. For access terminals and serving cells with mismatched capabilities, at T 1 And after the moment, the cell switching can be executed, so that the access terminal cuts out the cell as soon as possible. And for a capability-matched access terminal and serving cell, at T 2 And after the moment, the cell switching is executed, so that the residence time of the access terminal in the service cell is prolonged as far as possible. This allows resources to be fully utilized and the network-aware experience of the access terminal to be optimized.
Based on the solution provided in the foregoing embodiment, preferably, as shown in fig. 5, the solution provided in this embodiment further includes the following steps:
s51: the service cell obtains NSA capability of the adjacent target cell;
wherein, step S32 above is executed if the NSA capability of the access terminal does not match the NSA capability of the serving cell, where the cell handover of the access terminal is executed under the condition that the signal strength of the access terminal in the serving cell is lower than the first handover threshold, including:
s52: if the NSA capability of the access terminal is not matched with the NSA capability of the service cell, executing the cell switching of the access terminal according to the NSA capability of the adjacent target cell under the condition that the signal strength of the access terminal in the service cell is lower than a first switching threshold;
wherein, step S33 above is executed if the NSA capability of the access terminal matches the NSA capability of the serving cell, where the cell handover of the access terminal is executed if the signal strength of the access terminal in the serving cell is lower than the second handover threshold, including:
s53: and if the NSA capability of the access terminal is matched with the NSA capability of the service cell, performing cell switching of the access terminal according to the NSA capability of the adjacent target cell under the condition that the signal strength of the access terminal in the service cell is lower than a second cut-out threshold.
In the solution provided in this embodiment, the cell handover of the access terminal is performed according to the situation of the neighboring target cell, while depending on whether the function of the access terminal matches the function of the serving cell. In general, there are often a plurality of neighboring cells around a serving cell, and the cell switching of the access terminal is performed according to the capabilities of the neighboring cells, so that the access terminal can be switched to the neighboring cells matched with the capabilities of the access terminal NSA as much as possible.
In the case that the function of the access terminal is matched with the function of the serving cell, the scheme provided by the embodiment can enable the access terminal to be switched to the serving cell matched with the access terminal as much as possible, and ensures that the network sensing experience of the access terminal is better.
For the situation that the function of the access terminal is not matched with the function of the service cell, the scheme provided by the embodiment can enable the access terminal to be switched to the service cell matched with the access terminal as soon as possible, optimize the network sensing experience of the access terminal, and enable the network resources to be fully utilized.
Based on the solution provided in the foregoing embodiment, preferably, as shown in fig. 6, step S52, if the NSA capability of the access terminal does not match the NSA capability of the serving cell, performs cell handover of the access terminal according to the NSA capability of the neighboring target cell under the condition that the signal strength of the access terminal in the serving cell is lower than the first handover threshold, where the step S includes:
s62: if the NSA capability of the access terminal does not match the NSA capability of the serving cell and the NSA capability of the access terminal matches the NSA capability of the neighboring target cell, then a cell handoff of the access terminal is performed if the signal strength of the access terminal at the serving cell is below a first hand-in threshold and the signal strength of the neighboring target cell is above a first hand-in threshold.
Specifically, referring to fig. 7, an A5 event triggered handover policy may be adopted, that is, cell handover is performed according to the serving cell signal strength RSRPscell and the neighbor cell signal strength RSRPncell measured by the terminal. When the serving cell RSRPscell is below an a51 threshold a5thr1_rsrp_limit and the neighbor cell RSRPncell is above an a52 threshold a5thr2_rsrp_limit, a handover condition is triggered.
Based on the solution provided in the foregoing embodiment, preferably, as shown in fig. 6, step S53, if the NSA capability of the access terminal matches with the NSA capability of the serving cell, performs cell handover of the access terminal according to the NSA capability of the neighboring target cell under the condition that the signal strength of the access terminal in the serving cell is lower than the second handover threshold, where the step S includes:
s63: and if the NSA capability of the access terminal is matched with the NSA capability of a serving cell and the NSA capability of the access terminal is not matched with the NSA capability of a neighboring target cell, performing cell switching of the access terminal on the condition that the signal strength of the access terminal in the serving cell is lower than a second cut-in threshold and the signal strength of the access terminal in the neighboring target cell is higher than a second cut-in threshold, wherein the first cut-in threshold is lower than the second cut-in threshold.
The present solution is illustrated below in terms of both the serving cell and the neighbor cells of the serving cell:
(1) Serving cell handover conditions:
for NSA terminal, if the serving cell is the anchor cell, then normal handover threshold is executed, i.e. the a51 threshold is a5thr1_rsrp_limit, as shown in fig. 7 (2); if the serving cell is a non-anchor cell, the handover from the non-anchor cell is started in advance, i.e. the a51 threshold is a5thr1_rsrp_limit+a5thr_rsrp_nsaoffset, as shown in (1) of fig. 7.
For a non-NSA terminal, if the serving cell is an anchor cell, the switching of the anchor cell is started in advance, so that resources are vacated for the anchor cell, and resource waste is avoided. I.e., the a51 threshold is a5thr1_rsrp_limit+a5thr_rsrp_nsaoffset, as shown in (1) of fig. 7; if the serving cell is a non-anchor cell, a normal handover threshold is performed, i.e., the a51 threshold is a5thr1_rsrp_limit, as shown in (2) of fig. 7.
(2) Neighboring cell hand-in condition:
for the NSA terminal, if the neighboring cell is the anchor cell, a normal handover threshold is executed, that is, the a52 threshold is a5thr2_rsrp_limit, as shown in (5) in fig. 7; if the serving cell is a non-anchor cell, the handover to the neighbor cell is delayed, i.e., the a52 threshold is adjusted to a5thr1_rsrp_limit+a5thr_rsrp_nsaoffset, and the duration of the stay in the anchor cell is increased, as shown in (6) of fig. 7.
For the non-NSA terminal, if the neighboring cell is an anchor cell, switching to the neighboring cell is delayed, that is, the a52 threshold is adjusted to be a5thr2_rsrp_limit+a5thr_rsrp_nsaoffset, so that the occupation of resources to the anchor cell is reduced, as shown in (6) in fig. 7; if the serving cell is a non-anchor cell, then a normal handover condition is performed, i.e., the a52 threshold is a5thr1_rsrp_limit, as shown in (6) of fig. 7.
And if the terminal simultaneously meets the serving cell cut-out condition A51 threshold and the adjacent cell cut-in condition A52 threshold, executing the cell switching operation of the access terminal.
By the scheme provided by the embodiment, for the case that the access terminal has NSA capability and the serving cell is a non-anchor cell, the access terminal cannot use 5G network resources, and network perception is poor. By the scheme provided by the embodiment, under the condition that the adjacent cells comprise anchor cells, the NSA terminal can be preferentially switched to the adjacent cells with NSA functions, and network experience of the NSA terminal is optimized.
For the case that the access terminal does not have NSA capability, the serving cell is the anchor cell, and the 5G resources of the anchor cell are wasted. By the scheme provided by the embodiment, the non-NSA terminal can be switched to the non-anchor cell, so that resource waste is avoided, and the load of the anchor cell is reduced.
For the case that the access terminal has NSA capability, the serving cell is an anchor cell, and the case that the access terminal does not have NSA capability, the serving cell is a non-anchor cell, by the scheme provided by the embodiment, the access terminal can be switched to a matched adjacent cell, the network perception experience of the access terminal is ensured to be stable, and network resources are not wasted.
Based on the solution provided in the foregoing embodiment, preferably, as shown in fig. 8, in step S51, the serving cell obtains NSA capability of a neighboring target cell, including:
s81: the service cell acquires NSA capability of at least one adjacent cell;
s82: when the at least one neighboring cell includes a neighboring cell that matches the NSA capability of the access terminal, the NSA capability of the neighboring cell that matches the NSA capability of the access terminal is determined as the NSA capability of the neighboring target cell.
In general, the serving cell has a plurality of neighboring cells for the access terminal to perform cell switching, and by using the scheme provided in this embodiment, the serving cell can select, as the neighboring target cell, a neighboring cell that matches the NSA capability of the access terminal by acquiring the NSA capabilities of the plurality of neighboring cells. So that after performing a cell switch, the access terminal can be switched to a neighboring cell that matches the NSA capability of the access terminal as much as possible. The scheme provided by the embodiment can optimize the network sensing experience of the access terminal, reduce the condition of network resource waste and ensure that the network resource is fully utilized.
For example, referring to fig. 9, when the serving cell is an anchor cell and the access terminal has NSA capability, the NSA anchor base station of the serving cell may issue measurement information including NSA neighbor cells, and determine whether the neighbor cells have NSA capability according to the acquired UE capability information. If the neighboring cell does not have NSA capability, i.e. the neighboring cell is a non-anchor cell, the cell handover is performed according to the normal handover strategy. If the NSA-capable cell is a neighboring cell, it can be determined that the neighboring cell's functionality matches the access terminal's functionality, and the access terminal is preferentially handed over to the anchor cell.
Based on the method provided by the foregoing embodiment, preferably, the solution provided by this embodiment further includes:
in the event that the NSA capability of the access terminal matches the NSA capability of the serving cell, network resources are allocated to the access terminal according to at least one of: the signal to interference plus noise ratio, SINR, of the serving cell, the load of the serving cell, the traffic of the access terminal.
Where SINR (Signal to Interference plus Noise Ratio) is the signal to interference plus noise ratio and refers to the ratio of the strength of the received useful signal to the strength of the received interfering signal (noise and interference).
Specifically, referring to fig. 10, when the NSA terminal resides in the anchor cell, signaling is completed through the 4G anchor cell, and the service may pass through the 5G NR base station or through the 4G anchor cell. However, if the 4G anchor cell or the 5G NR cell is too many to let the NR cell carry packet service, the advantages of NR large bandwidth and high rate cannot be exerted on the premise that the radio resources are limited. However, the performance of the NR cell can rapidly decrease below the 4G anchor cell at the cell edge due to the limited frequency band problem, and if the NR cell resource is allocated to the user in this scenario, the network perception will be poor.
In fig. 10, CSI-SINR is related to cell load, and PRB utilization may refer to physical resource utilization.
The scheme provided by the embodiment starts from service awareness, when the SINR is good and the cell load is low, NR resources are preferentially allocated to large packet service, and small packet service allocates 4G resources. When the NR cell is a high-frequency networking, uplink and downlink decoupling can be realized through the strategy, namely, the uplink SINR of NR is considered to be poor, and uplink resources of LTE are preferentially allocated to the terminal; and the downlink coverage is better, NR resources are preferentially allocated to the terminal, and uplink and downlink decoupling is realized.
Based on the solution provided in the foregoing embodiment, preferably, in a case where the NSA capability of the access terminal matches the NSA capability of the serving cell, network resources are allocated to the access terminal according to at least one of the following: the signal-to-interference-plus-noise ratio SINR of the serving cell, the load of the serving cell, the traffic of the access terminal, comprising:
and when the serving cell has NSA capability, allocating 5G network resources to the target terminal under the condition that the signal-to-interference-plus-noise ratio of the serving cell is larger than a first standard value and the utilization rate of the serving cell is lower than a second standard value.
Referring to fig. 10, csi-SINR is a signal to interference plus noise ratio of a cell, nsa_sinr_limit is a first standard value, PRB utilization is a load of the cell, and nr_prb_limit is a second standard value.
A. When the CSI-SINR of the NR cell is higher than the NSA_SINR_LIMIT threshold, the wireless environment of the NR cell is good, the environment with good terminal perception is provided, and the B is executed; otherwise, executing the step D.
B. Judging the PRB utilization rate of an NR cell, and when the PRB utilization rate is lower than NR_PRB_LIMIT, indicating that the wireless resources of the NR cell are sufficient, and allocating resources to NSA terminals of the large packet service by the NR cell; otherwise, executing C.
C. When the utilization of the PRB of the NR cell is higher than the utilization of the NR_PRB_LIMIT, the NR cell allocates resources to the NSA terminal of the packet service.
D. When the SI-SINR of the NR cell is lower than NSA_SINR_LIMIT threshold, the NR cell wireless environment is not good, and the terminal executes E at the edge of the cell.
E. When the signal strength RSRP of the anchor LTE cell is larger than A51THR_RSRP_LIMIT, the wireless environment of the anchor LTE cell is good, and LTE resources are distributed to the large-packet service terminal; otherwise, executing F.
F. When the signal strength RSRP of the anchor LTE cell is smaller than a51thr_rsrp_limit, it is indicated that the wireless environment of the anchor LTE cell is not good, and the handover procedure is performed.
The uplink and downlink decoupling can be realized by respectively executing the uplink and downlink of the flow.
In addition, terminal reselection may be performed based on the above scheme. Specifically, the terminal automatically adopts different cell priority strategies according to whether the terminal has an NSA function or not. Namely, for NSA terminals, an anchor point cell is set as a reselecting high-priority cell, and a non-anchor point cell is set as a reselecting low-priority cell; for non-NSA terminals, the non-anchor cells are set to be reselected to be high priority, and the anchor cells are set to be reselected to be low priority.
The differentiated implementation of reselection is as follows:
for NSA terminals, when non-anchor cells reside, the adjacent cell frequency points are measured all the time, and when the adjacent cells are searched to be anchor cells and the signal strength RSRPancell is higher than the NSA_RSRP_XHIGH threshold, the target anchor cells are reselected; when the anchor point cell is resided, the serving cell RSRPscell starts to start neighbor cell measurement when the serving cell RSRPscell is lower than NSA_RSRP_SERVICNGLOW, and when the neighbor cell is searched to be a non-anchor point cell and the signal strength RSRPncell is higher than the NSA_RSRP_LOW threshold, the target anchor point cell is reselected.
For a non-NSA terminal, when an anchor point cell is resided, the frequency point of a neighboring cell is measured all the time, and when the neighboring cell is searched to be the non-anchor point cell and the signal strength RSRPancell is higher than the NSA_RSRP_XHIGH threshold, the target anchor point cell is reselected; when the non-anchor point cell is resided, the serving cell RSRPscell is lower than NSA_RSRP_SERVICNGLOW, neighbor cell measurement starts to be started, and when the neighbor cell is searched to be the anchor point cell and the signal strength RSRPncell is higher than the NSA_RSRP_LOW threshold, the target anchor point cell is reselected.
Other cases implement the same priority reselection strategy.
According to the scheme provided by the embodiment of the application, differentiated reselection and switching strategies are realized for the NSA terminal and the non-NSA terminal, so that the purposes that the NSA terminal prefers anchor cells and the NSA terminal residents in the NSA network is achieved; meanwhile, the occupation and residence of non-NSA terminals to the resources of the anchor point cell are reduced, and the wireless resource utilization efficiency of the anchor point cell is improved.
The scheme also realizes that the large packet service preferentially occupies NR resources with low load and good SINR by comprehensively considering the coverage, quality and load level of the NR cells; the packet service occupies low bandwidth and low SINR wireless resources, and realizes the comprehensive improvement of the integral performance of the NSA cell.
In addition, the method and the strategy for the differentiated preferential reselection and the switching to the target anchor point cell of the NSA terminal can effectively improve the network residence capacity of the NSA terminal, exert the performance of an NR network and provide better quality 5G service for the NSA terminal. The NSA resource allocation method and strategy taking the coverage, the SINR and the load into consideration can balance the wireless resource allocation of the NSA network LTE and the NR cell to the maximum extent, promote the benefit maximization allocation of the wireless resource and promote the overall network perception. In the early NSA networking stage, the perception performance of the NSA terminal is comprehensively improved in the aspects of network resource scheduling and management, so that the brand image of 5G is improved.
In order to solve the problems in the prior art, an embodiment of the present application further provides an electronic device, as shown in fig. 11, including:
an obtaining module 1101, configured to obtain NSA capability of an access terminal;
a first handover module 1102 that performs a cell handover of the access terminal if the NSA capability of the access terminal does not match the NSA capability of a serving cell, if the signal strength of the access terminal at the serving cell is below a first handover threshold;
a second handover module 1103 performs a cell handover of the access terminal if the NSA capability of the access terminal matches the NSA capability of a serving cell, if the signal strength of the access terminal at the serving cell is below a second handover threshold, wherein the first handover threshold is higher than the second handover threshold.
Based on the electronic device provided in the foregoing embodiment, preferably, the electronic device further includes:
a second acquisition module for acquiring NSA capability of the adjacent target cell;
the first cutting module is used for:
if the NSA capability of the access terminal is not matched with the NSA capability of the service cell, executing the cell switching of the access terminal according to the NSA capability of the adjacent target cell under the condition that the signal strength of the access terminal in the service cell is lower than a first switching threshold;
the second cutting module is used for:
and if the NSA capability of the access terminal is matched with the NSA capability of the service cell, performing cell switching of the access terminal according to the NSA capability of the adjacent target cell under the condition that the signal strength of the access terminal in the service cell is lower than a second cut-out threshold.
Based on the electronic device provided in the foregoing embodiment, preferably, the first cutting module is configured to:
if the NSA capability of the access terminal does not match the NSA capability of the serving cell and the NSA capability of the access terminal matches the NSA capability of the neighboring target cell, then a cell handoff of the access terminal is performed if the signal strength of the access terminal at the serving cell is below a first hand-in threshold and the signal strength of the neighboring target cell is above a first hand-in threshold.
Based on the electronic device provided in the foregoing embodiment, preferably, the second cutting module is configured to:
and if the NSA capability of the access terminal is matched with the NSA capability of a serving cell and the NSA capability of the access terminal is not matched with the NSA capability of a neighboring target cell, performing cell switching of the access terminal on the condition that the signal strength of the access terminal in the serving cell is lower than a second cut-in threshold and the signal strength of the access terminal in the neighboring target cell is higher than a second cut-in threshold, wherein the first cut-in threshold is lower than the second cut-in threshold.
Based on the electronic device provided in the foregoing embodiment, preferably, the obtaining module is configured to:
acquiring NSA capability of at least one adjacent cell;
when the at least one neighboring cell includes a neighboring cell that matches the NSA capability of the access terminal, the NSA capability of the neighboring cell that matches the NSA capability of the access terminal is determined as the NSA capability of the neighboring target cell.
Based on the electronic device provided in the foregoing embodiment, preferably, the electronic device further includes:
an allocation module that allocates network resources for the access terminal in the event that the NSA capability of the access terminal matches the NSA capability of the serving cell according to at least one of: the signal to interference plus noise ratio, SINR, of the serving cell, the load of the serving cell, the traffic of the access terminal.
Based on the electronic device provided in the foregoing embodiment, preferably, the allocation module is configured to:
and when the serving cell has NSA capability, allocating 5G network resources to the target terminal under the condition that the signal-to-interference-plus-noise ratio of the serving cell is larger than a first standard value and the utilization rate of the serving cell is lower than a second standard value.
In the embodiment of the application, an acquisition module acquires NSA capability of an access terminal; if the NSA capability of the access terminal does not match the NSA capability of the serving cell, performing cell switching of the access terminal under the condition that the signal strength of the access terminal in the serving cell is lower than a first cut-out threshold; if the NSA capability of the access terminal matches the NSA capability of the serving cell, performing cell handoff of the access terminal if the signal strength of the access terminal at the serving cell is below a second handoff threshold, wherein the first handoff threshold is higher than the second handoff threshold. Because the first cut-out threshold is higher than the second cut-out threshold in this embodiment, cell switching is easier to be performed when the NSA capability of the access terminal is not matched with the NSA capability of the serving cell, and thus resources of the serving cell are reserved for the matched terminal. In addition, when the NSA capability of the access terminal is matched with the NSA capability of the serving cell, the cell switching is difficult to be performed, so that the time of the access terminal residing in the current serving cell is prolonged, and the use experience of a user is optimized. And the network resources of the anchor point cell are prevented from being wasted, so that reasonable distribution of the network resources is realized, and the network resources are fully utilized.
Preferably, the embodiment of the present invention further provides a mobile terminal, including a processor, a memory, and a computer program stored in the memory and capable of running on the processor, where the computer program when executed by the processor implements each process of the above embodiment of a method for switching a network cell, and the same technical effects can be achieved, and for avoiding repetition, a description is omitted herein.
The embodiment of the present invention further provides a computer readable storage medium, on which a computer program is stored, where the computer program when executed by a processor implements each process of the above-mentioned method embodiment for switching network cells, and the same technical effects can be achieved, and for avoiding repetition, a detailed description is omitted herein. Wherein the computer readable storage medium is selected from Read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), magnetic disk or optical disk.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present invention.
The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the claims, which are to be protected by the present invention.

Claims (10)

1. A method of switching network cells, comprising:
the serving cell obtains NSA capability of the access terminal;
if the NSA capability of the access terminal does not match the NSA capability of the serving cell, performing cell switching of the access terminal under the condition that the signal strength of the access terminal in the serving cell is lower than a first switching threshold;
and if the NSA capability of the access terminal is matched with the NSA capability of a serving cell, performing cell switching of the access terminal under the condition that the signal strength of the access terminal in the serving cell is lower than a second switching-out threshold, wherein the first switching-out threshold is higher than the second switching-out threshold.
2. The method as recited in claim 1, further comprising:
the service cell obtains NSA capability of the adjacent target cell;
wherein if the NSA capability of the access terminal does not match the NSA capability of the serving cell, performing a cell handover of the access terminal if the signal strength of the access terminal at the serving cell is below a first handover threshold, comprising:
if the NSA capability of the access terminal is not matched with the NSA capability of the service cell, executing the cell switching of the access terminal according to the NSA capability of the adjacent target cell under the condition that the signal strength of the access terminal in the service cell is lower than a first switching threshold;
wherein if the NSA capability of the access terminal matches the NSA capability of the serving cell, performing a cell handover of the access terminal if the signal strength of the access terminal at the serving cell is below a second handover threshold, comprising:
and if the NSA capability of the access terminal is matched with the NSA capability of the service cell, performing cell switching of the access terminal according to the NSA capability of the adjacent target cell under the condition that the signal strength of the access terminal in the service cell is lower than a second cut-out threshold.
3. The method of claim 2, wherein if the NSA capability of the access terminal does not match the NSA capability of a serving cell, performing a cell handoff of the access terminal based on the NSA capability of the neighboring target cell if the signal strength of the access terminal is below a first handoff threshold for the serving cell, comprising:
if the NSA capability of the access terminal does not match the NSA capability of the serving cell and the NSA capability of the access terminal matches the NSA capability of the neighboring target cell, then a cell handoff of the access terminal is performed if the signal strength of the access terminal at the serving cell is below a first hand-in threshold and the signal strength of the neighboring target cell is above a first hand-in threshold.
4. The method of claim 3, wherein if the NSA capability of the access terminal matches the NSA capability of a serving cell, performing a cell handoff of the access terminal based on the NSA capability of the neighboring target cell if the signal strength of the access terminal is below a second handover threshold, comprising:
and if the NSA capability of the access terminal is matched with the NSA capability of a serving cell and the NSA capability of the access terminal is not matched with the NSA capability of a neighboring target cell, performing cell switching of the access terminal on the condition that the signal strength of the access terminal in the serving cell is lower than a second cut-in threshold and the signal strength of the access terminal in the neighboring target cell is higher than a second cut-in threshold, wherein the first cut-in threshold is lower than the second cut-in threshold.
5. The method according to any one of claims 2 to 4, wherein the serving cell obtains NSA capability of a neighboring target cell, comprising:
the service cell acquires NSA capability of at least one adjacent cell;
when the at least one neighboring cell includes a neighboring cell that matches the NSA capability of the access terminal, the NSA capability of the neighboring cell that matches the NSA capability of the access terminal is determined as the NSA capability of the neighboring target cell.
6. The method as recited in claim 1, further comprising:
in the event that the NSA capability of the access terminal matches the NSA capability of the serving cell, network resources are allocated to the access terminal according to at least one of: the signal to interference plus noise ratio, SINR, of the serving cell, the load of the serving cell, the traffic of the access terminal.
7. The method of claim 4, wherein in the event that the NSA capability of the access terminal matches the NSA capability of a serving cell, allocating network resources for the access terminal in accordance with at least one of: the signal-to-interference-plus-noise ratio SINR of the serving cell, the load of the serving cell, the traffic of the access terminal, comprising:
and when the serving cell has NSA capability, allocating the 5G network resource to the target terminal under the condition that the signal-to-interference-plus-noise ratio of the serving cell is larger than a first standard value and the utilization rate of the serving cell is lower than a second standard value.
8. An electronic device, comprising:
an acquisition module for acquiring NSA capability of the access terminal;
a first handover module that performs a cell handover of the access terminal if the NSA capability of the access terminal does not match the NSA capability of a serving cell, if the signal strength of the access terminal at the serving cell is below a first handover threshold;
and if the NSA capability of the access terminal is matched with the NSA capability of a serving cell, performing cell switching of the access terminal under the condition that the signal strength of the access terminal in the serving cell is lower than a second switching-out threshold, wherein the first switching-out threshold is higher than the second switching-out threshold.
9. An electronic device, comprising: memory, a processor and a computer program stored on the memory and executable on the processor, which when executed by the processor, performs the steps of the method according to any one of claims 1 to 7.
10. A computer-readable storage medium, on which a computer program is stored which, when executed by a processor, implements the steps of the method according to any one of claims 1 to 7.
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