CN112383946B - Network switching method and network equipment - Google Patents
Network switching method and network equipment Download PDFInfo
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- CN112383946B CN112383946B CN202011392146.7A CN202011392146A CN112383946B CN 112383946 B CN112383946 B CN 112383946B CN 202011392146 A CN202011392146 A CN 202011392146A CN 112383946 B CN112383946 B CN 112383946B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/14—Reselecting a network or an air interface
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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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
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0058—Transmission of hand-off measurement information, e.g. measurement reports
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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
- H04W36/0085—Hand-off measurements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W36/24—Reselection being triggered by specific parameters
- H04W36/26—Reselection being triggered by specific parameters by agreed or negotiated communication parameters
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- H—ELECTRICITY
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- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
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Abstract
The invention provides a network switching method and network equipment, relates to the field of communication, and can provide reasonable and stable pilot frequency/pilot system switching in a high-interference network scene and effectively ensure user perception of a network edge area. The method comprises the following steps: the network equipment determines whether a service cell is a high-interference cell or not according to the downlink average channel quality and the uplink average interference noise of the cell; if the serving cell is a high-interference cell, the network equipment receives a Timing Advance (TA) and a Reference Signal Received Power (RSRP) uploaded by user equipment; the network equipment issues a network measurement command to user equipment according to the TA and the RSRP; and starting network switching according to the network measurement result corresponding to the network measurement command.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a network switching method and a network device.
Background
When the user equipment enters the coverage area of another cell from the coverage area of one cell, in order to enable the user to obtain continuous network service during the mobile conversation, and in order to make the network performance more excellent, the network is switched. With the continuous richness of network systems and network architectures, network scenes are increasingly diverse, and network boundaries are increasingly complex. Conventional network measurement and handover events generally use RSRP (reference signal receiving power), RSRQ (reference signal receiving quality), or SINR (signal to interference plus noise ratio), or a combination thereof as evaluation criteria for cell network quality.
The three evaluation criteria have certain disadvantages: RSRP can only evaluate signal strength and cannot accurately evaluate signal interference; the RSRQ is not only related to the signal strength, but also depends heavily on the current system load, and the system load does not influence the cell switching; although the SINR can evaluate signal interference, current network tests show that, on one hand, SINR fluctuation is large, and stable network switching judgment basis cannot be provided, and on the other hand, SINR reported by different terminals in the same scene may be different, resulting in inconsistent switching opportunities of different terminals. If the network switching is not timely or unreasonable, the signal quality of the user in the cell edge area is deteriorated, and the perception is reduced.
Disclosure of Invention
The application provides a network switching method and network equipment, which can provide reasonable and stable pilot frequency/pilot system switching under a high-interference network scene and effectively ensure user perception of a network edge area.
In order to achieve the purpose, the technical scheme is as follows:
in a first aspect, the present application provides a network handover method, which may include: the network equipment determines whether a service cell is a high-interference cell or not according to the downlink average channel quality and the uplink average interference noise of the cell; if the serving cell is a high-interference cell, the network equipment receives a Timing Advance (TA) and a Reference Signal Received Power (RSRP) uploaded by user equipment; the network equipment issues a network measurement command to user equipment according to the TA and the RSRP; and starting network switching according to the network measurement result corresponding to the network measurement command.
In a second aspect, the present application provides a network device, comprising: the device comprises a determining module, a receiving module, a sending module and a processing module. The determining module is used for determining whether the serving cell is a high-interference cell according to the downlink average channel quality and the uplink average interference noise of the cell; a receiving module, configured to receive a timing advance TA and a reference signal received power RSRP that are uploaded by a user equipment if the serving cell is a high interference cell; a sending module, configured to issue a network measurement command to user equipment according to the TA and the RSRP; and the processing module is used for starting network switching according to the network measurement result corresponding to the network measurement command.
In a third aspect, the present application provides a network device, comprising: a processor, a communication interface, and a memory. The memory is configured to store computer execution instructions, and when the network device runs, the processor executes the computer execution instructions stored in the memory, so that the network device executes the network handover method according to any one of the first aspect and various optional implementation manners thereof.
In a fourth aspect, the present application provides a computer-readable storage medium, in which one or more programs are stored, the one or more programs including computer-executable instructions, and when a processor of the network device executes the computer-executable instructions, the network device executes the network handover method according to any one of the first aspect and various optional implementations thereof.
In a fifth aspect, the present application provides a communication system comprising a user equipment, a server and a network device as described in any of the third and its various alternative implementations.
According to the network switching method and the network equipment, the network equipment determines whether a service cell is a high-interference cell or not according to the downlink average channel quality and the uplink average interference noise of the cell; if the serving cell is a high-interference cell, the network equipment receives a Timing Advance (TA) and a Reference Signal Received Power (RSRP) uploaded by the user equipment, issues a network measurement command to the user equipment according to the TA and the RSRP, and starts network switching according to a network measurement result corresponding to the network measurement command. Compared with the prior art, the base station adopts the RSRP as the network switching evaluation criterion. According to the network switching method provided by the invention, the network equipment firstly determines whether the service cell is a high-interference cell. If the serving cell is a high-interference cell, the network equipment combines TA and RSRP as criteria for starting or closing pilot frequency/inter-system measurement, so that timely switching of users in the edge area of the high-interference cell can be guaranteed, reasonable and stable pilot frequency/inter-system switching under a high-interference network scene is provided, and user perception of the edge area of the network is effectively guaranteed.
Drawings
Fig. 1 is a schematic view of a communication network structure of a network switching method and a network device application according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a network handover method according to an embodiment of the present invention;
fig. 3 is a first schematic structural diagram of a network device according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a network device according to an embodiment of the present invention.
Detailed Description
The network handover method, the network device and the system provided by the embodiment of the invention are described in detail below with reference to the accompanying drawings.
The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone.
The terms "first" and "second" and the like in the description of the present invention and the drawings are used for distinguishing different objects or for distinguishing different processes for the same object, and are not used for describing a specific order of the objects.
Furthermore, to the extent that the terms "includes" and "having," and any variants thereof, are used in the description of the present invention, it is intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be noted that, in the embodiments of the present invention, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described as "exemplary" or "such as" in an embodiment of the present invention is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.
In the description of the present invention, the meaning of "a plurality" means two or more unless otherwise specified.
First, technical terms involved in the embodiments of the present application are explained:
network switching: when a User Equipment (UE) continuously moves in the network, the signal quality at the edge of the cell may gradually decrease, and in order to maintain continuous communication service, the UE needs to trigger event reporting according to the signal measurement results of the serving cell and the neighboring cells, so as to switch to a cell with better signal quality.
Inter-frequency measurement/handover: and if the frequency point of the serving cell where the UE is currently located is different from the main frequency point of the adjacent cell, the UE is represented to be in the environment of the different-frequency networking. If the UE moves among the pilot frequency cells, the UE needs to measure the pilot frequency cells so as to acquire the signal quality of the pilot frequency cells, and whether the UE needs to be switched to the pilot frequency adjacent cells with better signal quality is considered. Because the pilot frequency measurement is performed, during the measurement, the mobile terminal needs to interrupt the service with the current serving cell and then switch to other frequency points for measurement.
Inter-system measurement/handover: if the network system of the current serving cell of the UE is different from the network system of the neighboring cell, for example, the network of the current serving cell is an LTE network and the neighboring cell is a TD-SCDMA network, when the signal quality of the serving cell is not good, the network quality measurement of the neighboring cell of the different system is needed, and whether to switch to the neighboring cell of the different system with better signal quality is considered. As with inter-frequency measurement/handover, inter-system handover also requires service interruption with the current serving cell and handover to other systems for measurement.
Network measurement, handover event: the measurement and handover events of the LTE/5G network mainly include an A1 event, an A2 event, an A3 event, an A4 event, an A5 event, a B1 event, and a B2 event. The A1 event represents that the quality of the signal of the service cell is higher than a certain threshold, and when the event meeting the condition is reported, the base station stops the measurement of the different frequency/different system. The A2 event represents that the signal quality of the service cell is lower than a certain threshold, and when the event meeting the condition is reported, the base station starts the measurement of the different frequency/different system. The A3 event represents that the signal quality of the same-frequency adjacent cell is higher than that of the service cell by a certain threshold, and when the event meeting the condition is reported, the base station starts the same-frequency switching. The A4 event shows that the quality of the pilot frequency adjacent cell signal is higher than a certain threshold, and when the event meeting the condition is reported, the base station starts pilot frequency switching. The A5 event shows that the signal quality of the service cell is lower than a certain threshold and the signal quality of the pilot frequency adjacent cell is higher than a certain threshold, and when the event meeting the condition is reported, the base station starts pilot frequency switching. The B1 event represents that the quality of the adjacent cell signal of the different system is higher than a certain threshold, and when the event meeting the condition is reported, the base station starts the switching request of the different system. The B2 event represents that the signal quality of the service cell is lower than a certain threshold and the signal quality of the adjacent cell of the different system is higher than a certain threshold, and when the event meeting the condition is reported, the base station starts the different system switching.
Timing Advance (TA): generally, for uplink transmission of a UE, in order to make an uplink packet of the UE arrive at a base station at a desired time, radio frequency transmission delay caused by distance is estimated, and a data packet is sent out at a corresponding time in advance, so that an approximate distance between the UE and the base station can be estimated by using a TA.
The network handover method provided in the embodiment of the present invention may be applied to the communication network shown in fig. 1, where the communication network may be a fifth generation (5th generation, 5g) mobile communication network, and may also be a fourth generation (4th generation, 4g) (e.g., an Evolved Packet System (EPS) mobile communication network, and may also be a future sixth generation (6th generation, 6g) mobile communication network or other actual mobile communication networks, which is not limited by the present invention.
As shown in fig. 1, the communication network may comprise: user equipment 101, network equipment 102, data network 103. The user equipment 101 in fig. 1 may be configured to connect to an access network device deployed by an operator through a wireless air interface, and then access to a data network; the network device 102 may be a base station, and is mainly configured to implement a wireless physical layer function, resource scheduling and wireless resource management, radio access control, and a mobility management function; the data network 103 may include servers, routers, and the like, and is mainly used for providing data services for terminal devices. It should be noted that fig. 1 is only an exemplary architecture diagram, and the network architecture may include other functional units besides the functional units shown in fig. 1, which is not limited in this embodiment of the present invention.
The UE 101 may be a User Equipment (UE), such as: cell phones, computers, and may also be cellular phones, cordless phones, session Initiation Protocol (SIP) phones, smart phones, wireless Local Loop (WLL) stations, personal Digital Assistants (PDAs), laptop computers, handheld communication devices, handheld computing devices, satellite radios, wireless modem cards, set Top Boxes (STBs), customer Premises Equipment (CPE), and/or other devices used to communicate over a wireless system.
The network switching method provided by the embodiment of the invention is applied to the wireless transmission of the communication network shown in fig. 1, and when the user equipment is in a pilot frequency networking scene or a different system networking scene, the reasonable and stable pilot frequency/different system switching under a high-interference network scene can be provided, and the user perception of a network edge area is effectively ensured. The reason is that when the network handover is performed, the handover is performed, and the stability is that for a cell, the signal quality is poor, the area where the network handover is performed is always concentrated in a certain sector or a ring area, and there is no difference that the device a is handed over at a certain place and the device B is not handed over.
An embodiment of the present invention provides a network switching method, and as shown in fig. 2, the method may include S101 to S104:
s101, the network equipment determines whether the service cell is a high-interference cell or not according to the downlink average channel quality and the uplink average interference noise of the cell.
Illustratively, the network device may be the network device in fig. 1, and specifically, may be a base station. In fig. 1, the ue stays in the appropriate cell for an appropriate time (1 second), and then can determine the interference level of the serving cell.
The cell downlink average channel quality can be a cell downlink average Channel Quality Indicator (CQI), which is an integer with a value range of 0-15 and is measured by the UE and reported to the base station. The CQI mainly relates to the reception quality of the downlink reference signal, for example, the UE estimates the CQI according to the SINR value and uploads the CQI to the base station in a periodic or aperiodic manner. The larger the CQI value is, the better the downlink channel quality of the cell is. The average interference noise of the cell uplink is measured by the base station, represents the average value of the uplink interference level detected on each physical resource block of the system, and is mainly used for evaluating the uplink interference strength.
In a possible implementation manner, the network device determines whether the serving cell is a high-interference cell based on the cell downlink average channel quality and the uplink average interference noise by:
if the cell downlink average channel quality is < alpha or the cell uplink average interference noise is > beta, determining that the serving cell is a high interference cell; and if the downlink average channel quality of the cell is greater than alpha and the uplink average interference noise of the cell is less than beta, determining that the serving cell is a non-high interference cell.
Wherein α is a cell downlink average channel quality determination threshold, and β is a cell uplink average interference noise determination threshold.
In one example, preset α =9, β = -105. And when the downlink average CQI of the certain cell A =7 and the uplink average interference noise is-110, the cell A is judged to be a high-interference cell.
In another example, a =9, β = -105 is preset. And when the downlink average CQI of a certain cell B =10 and the uplink average interference noise is-110, judging that the cell B is a non-high interference cell.
If the downlink channel quality of the serving cell is too poor or the uplink interference noise is too large, it is determined that the serving cell is a high interference cell, and then step S102 (a) is performed. If the downlink channel quality of the serving cell meets the standard and the uplink interference noise is not large, it is determined that the serving cell is a non-high interference cell, and then step S102 (b) is performed.
And S102 (a), if the serving cell is a high-interference cell, the network equipment receives the TA and the RSRP uploaded by the user equipment.
Optionally, the network device may obtain the TA and RSRP uploaded by the user equipment by issuing the measurement instruction, and may also receive the TA and RSRP periodically uploaded by the user equipment, which is not limited in this application.
In the prior art, the inter-frequency/inter-system measurement requires a measurement gap (measurement gap), and the UE performs the inter-frequency or inter-system measurement in the measurement gap. The A1 event and the A2 event are respectively used as a shutdown event and a startup event for inter-frequency/inter-system measurement, and in the prior art, signal RSRP quality is generally used as a judgment basis for reporting the A1 event or the A2 event: when the RSRP of the serving cell is higher than a preset threshold, the base station closes the pilot frequency/pilot system measurement by removing the measurement gap; and when the RSRP of the serving cell is lower than a preset threshold, starting the inter-frequency/inter-system measurement by activating a measurement gap. However, in a network scenario with high interference, as RSRP cannot reflect interference, if only the RSRP quality of a signal is used as a start/stop criterion for pilot frequency/inter-system measurement, pilot frequency measurement and handover may be initiated when user experience is very poor, handover cannot be completed in time, and a risk of disconnection exists, thereby affecting user perception. Therefore, according to the technical scheme of the application, on the premise that the interference of the serving cell is high, the TA is introduced to represent the distance between the UE and the base station, and the distance between the UE and the base station and the RSRP are jointly used as the pilot frequency/pilot system measurement criterion, so that the user perception of the cell edge area is improved.
Then, step S103 (a) is executed.
And S102 (b), if the serving cell is a non-high interference cell, the network equipment receives the RSRP uploaded by the user equipment.
Optionally, the network device may obtain RSRP uploaded by the user equipment by issuing a measurement instruction, and may also receive RSRP periodically uploaded by the user equipment, which is not limited in this application. Then, step S103 (b) is executed.
And S103 (a), the network equipment issues a network measurement command to the user equipment according to the TA and the RSRP.
In a possible implementation manner, the network device issues a network measurement command to the user equipment according to the TA and RSRP in the following manner:
TA if high interference cell>γ 1 And RSRP<δ 1 If so, issuing a pilot frequency measurement command to the user equipment; TA if high interference cell>γ 2 And RSRP<δ 2 And then issuing a different system measurement command to the user equipment.
Wherein, γ 2 Measuring event TA threshold, delta, for high interference cell inter-system 2 And measuring an event RSRP threshold for the high-interference cell different system. Wherein, γ 1 Measurement of event TA threshold, delta, for high interference cell inter-frequency 1 And the RSRP threshold is the pilot frequency measurement event RSRP threshold of the high-interference cell.
For a high-interference cell, it should not only rely on RSRP to determine whether inter-frequency/inter-system measurement is needed, and user equipment in a cell edge area, that is, user equipment far away from a base station, should perform network measurement and handover preferentially when interference is high. Therefore, the TA is selected as the distance evaluation criterion of the user equipment and the base station, and the timely switching of the user equipment in the edge area can be ensured in a high-interference scene.
Then, step S104 (a) is executed.
And S104 (a), if the network measurement result corresponding to the pilot frequency measurement command meets the event threshold of pilot frequency switching A4 or A5, the network equipment starts the pilot frequency switching.
Illustratively, if the network device starts inter-frequency measurement, and receives an event that the quality of an inter-frequency neighbor cell signal reported by the user equipment is higher than a preset threshold, or the quality of a serving cell signal is lower than the preset threshold and the quality of the inter-frequency neighbor cell signal is higher than the preset threshold, the network device sends an inter-frequency handover request and starts inter-frequency handover; if the network equipment starts the inter-system measurement, and receives an event that the signal quality of the inter-system neighbor cell reported by the user equipment is higher than a preset threshold, or the signal quality of the serving cell is lower than the preset threshold and the signal quality of the inter-system neighbor cell is higher than the preset threshold, the network equipment sends an inter-system switching request and starts inter-system switching.
In one example, γ is preset 1 ＝6，δ 1 ＝-105，γ 2 ＝7，δ 2 And (c) = -110. If a user equipment under a high-interference cell A reports TA =7 and RSRP = -110, the user equipment meets an pilot frequency measurement starting threshold, and if the user equipment meets an A4 or A5 event after pilot frequency measurement, pilot frequency switching can be executed. If a user equipment under a high-interference cell A reports TA =8 and RSRP = -115, the user equipment meets an inter-system measurement starting threshold, and if the user equipment meets a B1 or B2 event after performing inter-system measurement, inter-system handover can be executed.
And S103 (b), the network equipment issues a network measurement command to the user equipment according to the RSRP.
In a possible implementation manner, the network device issues a network measurement command to the user equipment according to RSRP in the following manner:
RSRP of non-high interference cell<δ 3 If yes, sending a pilot frequency measurement command to the user equipment; RSRP of non-high interference cell<δ 4 And then issuing a different system measurement command to the user equipment.
Wherein, delta 3 A non-high interference cell pilot frequency measurement event RSRP threshold; wherein, delta 4 And measuring an event RSRP threshold for the non-high interference cell different system. A
Then, step S104 (b) is performed.
And S104 (B), if the network measurement result corresponding to the inter-system measurement command meets the event threshold of inter-system switching B1 or B2, the network equipment starts inter-system switching.
Illustratively, if the network device starts inter-frequency measurement, and receives an event that the quality of an inter-frequency neighbor cell signal reported by the user equipment is higher than a preset threshold, or the quality of a serving cell signal is lower than the preset threshold and the quality of the inter-frequency neighbor cell signal is higher than the preset threshold, the network device sends an inter-frequency handover request and starts inter-frequency handover; if the network equipment starts the inter-system measurement, and receives an event that the signal quality of the inter-system neighbor cell reported by the user equipment is higher than a preset threshold, or the signal quality of the serving cell is lower than the preset threshold and the signal quality of the inter-system neighbor cell is higher than the preset threshold, the network equipment sends an inter-system switching request and starts inter-system switching.
In one example, δ is preset 3 ＝-105，δ 4 And (c) = -110. And if the user equipment meets the event of A4 or A5 after carrying out pilot frequency measurement, the pilot frequency switching can be executed. And reporting RSRP = -115 by certain user equipment in the non-high interference cell B, wherein the user equipment meets an inter-system measurement starting threshold, and if the user equipment meets a B1 or B2 event after performing inter-system measurement, inter-system switching can be executed.
According to the network switching method provided by the application, the network equipment determines whether a service cell is a high-interference cell or not according to the downlink average channel quality and the uplink average interference noise of the cell; if the serving cell is a high-interference cell, the network equipment receives a Timing Advance (TA) and a Reference Signal Received Power (RSRP) uploaded by the user equipment, issues a network measurement command to the user equipment according to the TA and the RSRP, and starts network switching according to a network measurement result corresponding to the network measurement command. Compared with the prior art, the base station adopts the RSRP as the network switching evaluation criterion. According to the network switching method provided by the invention, the network equipment firstly determines whether the service cell is a high-interference cell. If the serving cell is a high-interference cell, the network equipment combines TA and RSRP as criteria for starting or closing pilot frequency/inter-system measurement, so that timely switching of users in the edge area of the high-interference cell can be guaranteed, reasonable and stable pilot frequency/inter-system switching under a high-interference network scene is provided, and user perception of the edge area of the network is effectively guaranteed.
The above description mainly introduces the scheme provided by the embodiment of the present invention from the perspective of network devices. It is understood that the network device comprises corresponding hardware structures and/or software modules for performing the respective functions in order to realize the above functions. Those of skill in the art will readily appreciate that the present invention can be implemented in hardware or a combination of hardware and computer software for performing the exemplary network devices and algorithm steps described in connection with the embodiments disclosed herein. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the embodiment of the present invention, the network device may be divided into the functional modules or the functional units according to the above method examples, for example, each functional module or functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module may be implemented in a form of hardware, or may be implemented in a form of a software functional module or a functional unit. The division of the modules or units in the embodiments of the present invention is schematic, and is only a logic function division, and there may be another division manner in actual implementation.
Fig. 3 shows a schematic diagram of a possible structure of the network device according to the foregoing embodiment, in a case where each functional module is divided according to each function. The network device comprises a determining module 201, a receiving module 202, a sending module 203 and a processing module 204.
The determining module 201 is configured to determine whether a serving cell is a high interference cell according to the downlink average channel quality and the uplink average interference noise of the cell.
The receiving module 202 is configured to receive a timing advance TA and a reference signal received power RSRP uploaded by the user equipment if the serving cell is a high interference cell.
The sending module 203 is configured to issue a network measurement command to the user equipment according to the TA and the RSRP.
The processing module 204 is configured to start network handover according to a network measurement result corresponding to the network measurement command.
The determining module is specifically configured to: and if the downlink average channel quality of the cell is smaller than a preset cell downlink average channel quality judgment threshold, or the uplink average interference noise of the cell is larger than a preset cell uplink average interference noise judgment threshold, determining that the serving cell is a high-interference cell.
The sending module is specifically configured to: if the TA of the high-interference cell is greater than a TA threshold of a preset high-interference cell pilot frequency measurement event and the RSRP is less than an RSRP threshold of the preset high-interference cell pilot frequency measurement event, issuing a pilot frequency measurement command to the user equipment; and if the TA of the high-interference cell is greater than a TA threshold of a preset high-interference cell different-system measurement event and the RSRP is less than a RSRP threshold of a preset high-interference cell different-frequency measurement event, issuing a different-system measurement command to the user equipment.
The processing module is specifically configured to: if the network measurement result corresponding to the pilot frequency measurement command meets the pilot frequency switch A4 or A5 event threshold, starting pilot frequency switch; and if the network measurement result corresponding to the inter-system measurement command meets the inter-system switching B1 or B2 event threshold, starting inter-system switching.
The network device provided by the embodiment of the invention determines whether a serving cell is a high-interference cell according to the downlink average channel quality and the uplink average interference noise of the cell; and if the serving cell is a high-interference cell, receiving a Timing Advance (TA) and a Reference Signal Received Power (RSRP) uploaded by the user equipment, issuing a network measurement command to the user equipment according to the TA and the RSRP, and starting network switching according to a network measurement result corresponding to the network measurement command. Compared with the prior art, the base station adopts RSRP as a network switching evaluation criterion. The network equipment provided by the invention firstly determines whether the service cell is a high-interference cell. If the serving cell is a high-interference cell, TA and RSRP are combined to be used as criteria for starting or closing pilot frequency/inter-system measurement, timely switching of users in the edge area of the high-interference cell can be guaranteed, reasonable and stable pilot frequency/inter-system switching under a high-interference network scene is provided, and user perception of the edge area of the network is effectively guaranteed.
Fig. 4 shows a schematic diagram of another possible structure of the network device involved in the above embodiments. The network device includes: a processor 302, and a communication interface 303. Processor 302 is configured to control and manage the actions of the network devices, e.g., to perform the steps performed by determination module 201, processing module 204, and/or other processes for performing the techniques described herein. The communication interface 303 is used for supporting communication between the network device and other network entities, for example, the steps performed by the receiving module 202 and the sending module 203 are performed. The network device may further comprise a memory 301 and a bus 304, the memory 301 being used for storing program codes and data of the network device.
Wherein the memory 301 may be a memory in a network device or the like, which may include volatile memory, such as random access memory; the memory may also include non-volatile memory, such as read-only memory, flash memory, a hard disk, or a solid state disk; the memory may also comprise a combination of memories of the kind described above.
The processor 302 may be implemented or performed with various illustrative logical blocks, modules, and circuits described in connection with the disclosure. The processor may be a central processing unit, general purpose processor, digital signal processor, application specific integrated circuit, field programmable gate array or other programmable logic device, transistor logic device, hardware component, or any combination thereof. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. The processor may also be a combination of computing functions, e.g., comprising one or more microprocessors, DSPs, and microprocessors, among others.
The bus 304 may be an Extended Industry Standard Architecture (EISA) bus or the like. The bus 304 may be divided into an address bus, a data bus, a control bus, and the like. For ease of illustration, only one thick line is shown in FIG. 4, but this does not indicate only one bus or one type of bus.
The embodiment of the invention provides a communication system, which can comprise user equipment, network equipment and a data network, wherein the network equipment is mainly used for realizing the functions of a wireless physical layer, resource scheduling and wireless resource management, wireless access control and mobility management so as to execute the network switching method provided by the embodiment of the invention. For the description of the user equipment, the network device, and the data network, reference may be specifically made to the related descriptions in the method embodiment and the apparatus embodiment described above, and details are not described here again.
The embodiments of the present application further provide a computer program product containing instructions, which when run on a computer, causes the computer to execute the network handover method described in the above method embodiments.
An embodiment of the present invention further provides a computer-readable storage medium, where one or more programs are stored in the computer-readable storage medium, and the one or more programs include instructions, and when a processor of the network device executes the instructions, the network device executes each step executed by the network device in the method flow shown in the foregoing method embodiment.
The computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a Read-Only Memory (ROM), an Erasable Programmable Read-Only Memory (EPROM), a register, a hard disk, an optical fiber, a portable Compact Disc Read-Only Memory (CD-ROM), an optical storage device, a magnetic storage device, any suitable combination of the above, or any other form of computer readable storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an Application Specific Integrated Circuit (ASIC). In embodiments of the present application, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
Through the above description of the embodiments, it is clear to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be completed by different functional modules according to needs, that is, the internal structure of the device may be divided into different functional modules to complete all or part of the above described functions. For the specific working processes of the system, the apparatus and the unit described above, reference may be made to the corresponding processes in the foregoing method embodiments, and details are not described here again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules or units is only one logical division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or may be 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.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) or a processor to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: flash memory, removable hard drive, read only memory, random access memory, magnetic or optical disk, and the like.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. A method for network handover, comprising:
the network equipment determines whether a service cell is a high-interference cell or not according to the downlink average channel quality and the uplink average interference noise of the cell;
if the serving cell is a high-interference cell, the network equipment receives a Timing Advance (TA) and a Reference Signal Received Power (RSRP) uploaded by user equipment;
the network equipment issues a network measurement command to user equipment according to the TA and the RSRP;
the network equipment starts network switching according to the network measurement result corresponding to the network measurement command;
the issuing a network measurement command to the user equipment according to the TA and the RSRP specifically includes:
if the TA of the high-interference cell is greater than a TA threshold of a preset high-interference cell pilot frequency measurement event and the RSRP is less than an RSRP threshold of the preset high-interference cell pilot frequency measurement event, issuing a pilot frequency measurement command to user equipment;
and if the TA of the high-interference cell is greater than a TA threshold of a preset high-interference cell different system measurement event and the RSRP is less than an RSRP threshold of the preset high-interference cell different system measurement event, issuing a different system measurement command to the user equipment.
2. The method according to claim 1, wherein the determining whether the serving cell is a high interference cell according to the cell downlink average channel quality and the cell uplink average interference noise specifically includes:
and if the downlink average channel quality of the cell is smaller than a preset cell downlink average channel quality judgment threshold, or the uplink average interference noise of the cell is larger than a preset cell uplink average interference noise judgment threshold, determining that the serving cell is a high-interference cell.
3. The method according to claim 1, wherein the initiating network handover according to the network measurement result corresponding to the network measurement command comprises:
if the network measurement result corresponding to the pilot frequency measurement command meets the pilot frequency switching A4 or A5 event threshold, the network equipment starts the pilot frequency switching;
and if the network measurement result corresponding to the inter-system measurement command meets the inter-system switching B1 or B2 event threshold, the network equipment starts inter-system switching.
4. A network device, comprising:
a determining module, configured to determine whether a serving cell is a high interference cell according to the downlink average channel quality and the uplink average interference noise of the cell;
a receiving module, configured to receive a timing advance TA and a reference signal received power RSRP that are uploaded by a user equipment if the serving cell is a high interference cell;
the sending module is used for issuing a network measurement command to the user equipment according to the TA and the RSRP;
the processing module is used for starting network switching according to the network measurement result corresponding to the network measurement command;
the sending module is specifically configured to:
if the TA of the high-interference cell is greater than a TA threshold of a preset high-interference cell pilot frequency measurement event and the RSRP is less than an RSRP threshold of the preset high-interference cell pilot frequency measurement event, issuing a pilot frequency measurement command to the user equipment;
and if the TA of the high-interference cell is greater than a preset TA threshold of the inter-system measurement event of the high-interference cell and the RSRP is less than a preset RSRP threshold of the inter-system measurement event of the high-interference cell, issuing an inter-system measurement command to the user equipment.
5. The network device of claim 4, wherein the determining module is specifically configured to:
and if the downlink average channel quality of the cell is smaller than a preset cell downlink average channel quality judgment threshold, or the uplink average interference noise of the cell is larger than a preset cell uplink average interference noise judgment threshold, determining that the serving cell is a high-interference cell.
6. The network device of claim 4, wherein the processing module is specifically configured to:
if the network measurement result corresponding to the pilot frequency measurement command meets the pilot frequency switch A4 or A5 event threshold, starting pilot frequency switch;
and if the network measurement result corresponding to the inter-system measurement command meets the inter-system switching B1 or B2 event threshold, starting inter-system switching.
7. A network device, characterized in that the network device comprises: a processor, a communication interface, and a memory; wherein the communication interface is used for communication between the network equipment and other network entities; the memory is used for storing one or more programs, the one or more programs include computer-executable instructions, and when the network device runs, the processor executes the computer-executable instructions stored in the memory to enable the network device to execute the network switching method of any one of claims 1 to 3.
8. A computer-readable storage medium, wherein instructions are stored in the computer-readable storage medium, and when the instructions are executed by a computer, the computer performs the network handover method according to any one of claims 1 to 3.
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| CN114786223B (en) * | 2022-05-11 | 2023-05-30 | 大连市共进科技有限公司 | Frequency point switching method and device, mobile base station system and storage medium |
| CN117202280A (en) * | 2022-05-30 | 2023-12-08 | 维沃软件技术有限公司 | Measurement processing method, device, communication equipment and readable storage medium |
| CN115499950A (en) * | 2022-09-22 | 2022-12-20 | 展讯半导体(成都)有限公司 | Cellular communication method and device |
| WO2024164307A1 (en) * | 2023-02-10 | 2024-08-15 | Apple Inc. | Technologies for handling timing advances in wireless networks |
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