CN107360600B - Method and equipment for selecting cell - Google Patents

Method and equipment for selecting cell Download PDF

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Publication number
CN107360600B
CN107360600B CN201710565771.9A CN201710565771A CN107360600B CN 107360600 B CN107360600 B CN 107360600B CN 201710565771 A CN201710565771 A CN 201710565771A CN 107360600 B CN107360600 B CN 107360600B
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cell
service
type
user equipment
scrambling code
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CN107360600A (en
Inventor
谢超唯
陈东
徐小英
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN201710565771.9A priority Critical patent/CN107360600B/en
Priority to CN2012100586625A priority patent/CN103313318A/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/16Performing reselection for specific purposes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0055Transmission and use of information for re-establishing the radio link
    • H04W36/0061Transmission and use of information for re-establishing the radio link of neighbor cell information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0055Transmission and use of information for re-establishing the radio link
    • H04W36/0072Transmission and use of information for re-establishing the radio link of resource information of target access point
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0055Transmission and use of information for re-establishing the radio link
    • H04W36/0077Transmission and use of information for re-establishing the radio link of access information of target access point
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/08Reselecting an access point

Abstract

The invention discloses a method and equipment for cell selection, which relate to the technical field of wireless communication, and can realize that user equipment is more accurately connected to a cell capable of providing service for the service to complete a service process when initiating the service or switching, thereby reducing the signaling overhead load of a network side and improving the user experience. The method comprises the following steps: acquiring the service type of cell service and the signal quality corresponding to the cell; and selecting at least one cell capable of providing the service for the user equipment according to the service type of the cell service, the signal quality corresponding to the cell and the service type of the service initiated by the user equipment. The embodiment of the invention is mainly applied to the process of cell selection when the user equipment initiates the service and switches.

Description

Method and equipment for selecting cell
The present application claims a divisional application of the chinese patent application having the patent office china, application number 201210058662.5, entitled "method and apparatus for cell selection", filed on month 07/03/2012, the entire contents of which are incorporated herein by reference.
Technical Field
The present invention relates to the field of wireless communications technologies, and in particular, to a method and an apparatus for cell selection.
Background
Wireless communication has entered the period of explosive growth of data traffic, and operators need to solve two problems simultaneously: providing higher network capacity and reducing transmission cost per bit. Currently, the use of hetnets (heterogeneous networks) is an important solution to the above-mentioned problems. Hetnet is a network of different sized, different types of cells together. By deploying the cells in the Hetnet, the system capacity which is nearly 10 times that of the area with dense telephone traffic can be provided, and the low construction cost and the low management cost of the cells in the Hetnet can effectively reduce the construction cost and the operation cost of an operator network. Currently, in Hetnet, when a user equipment performs cell reselection or inter-cell handover, the user equipment or a network side selects a new cell only according to signal quality, but because the service type of the new cell may have limitations, a service required or being processed by the user equipment cannot be provided, which causes the network side to control the user equipment to perform redirection or a handover process, thereby increasing signaling overhead load of a network and reducing user experience.
Disclosure of Invention
Aspects of the present invention provide a method and device for cell selection, which can reduce signaling overhead load on a network side and improve user experience.
In an aspect of the present invention, a method for cell selection is provided, including: acquiring the service type of cell service and the signal quality corresponding to the cell; and selecting at least one cell capable of providing the service for the user equipment according to the service type of the cell service, the signal quality corresponding to the cell and the service type of the service initiated by the user equipment.
In another aspect of the present invention, a method for notifying a service type is provided, including: and sending a type indication message to user equipment so that the user equipment determines the service type of the cell service according to the type indication message.
In another aspect of the present invention, a method for notifying a measurement mode is provided, including: acquiring a measuring mode; and sending measurement configuration parameters to user equipment, wherein the measurement configuration parameters comprise the measurement mode, so that the user equipment measures the signal quality corresponding to the cell according to the measurement mode.
In another aspect of the present invention, a user equipment is provided, including: an obtaining unit, configured to obtain a service type of a cell service and a signal quality corresponding to the cell; and the selecting unit is used for selecting at least one cell capable of providing the service for the user equipment according to the service type of the cell service acquired by the acquiring unit, the signal quality corresponding to the cell and the service type of the service initiated by the user equipment.
In another aspect of the present invention, a network-side device is provided, including: an obtaining unit, configured to obtain a service type of a cell service and a signal quality corresponding to the cell; and the selecting unit is used for selecting at least one cell capable of providing the service for the user equipment according to the service type of the cell service acquired by the acquiring unit, the signal quality corresponding to the cell and the service type of the service initiated by the user equipment.
In another aspect of the present invention, a network-side device is provided, including: an obtaining unit, configured to obtain any one of a cell type, a service type of a cell service, a correspondence between a scrambling code segment and the cell type, and a correspondence between the scrambling code segment and the service type; and the sending unit is used for constructing a type indication message according to the information obtained by the obtaining unit and sending the type indication message to the user equipment so that the user equipment can determine the service type of the cell service according to the type indication message.
In another aspect of the present invention, a network-side device is provided, including: an acquisition unit for acquiring a measurement mode; a sending unit, configured to send a measurement configuration parameter to a user equipment, where the measurement configuration parameter includes the measurement mode, so that the user equipment measures the signal quality corresponding to the cell according to the measurement mode.
The cell selection method and the cell selection equipment can reduce the signaling overhead load of the network side and improve the user experience.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flowchart of a method of cell selection according to an embodiment of the present invention;
fig. 2 is a flowchart of a method of cell selection according to an embodiment of the present invention;
fig. 3 is a flow chart of another method of cell selection in an embodiment of the present invention;
fig. 4 is a flow chart of another method of cell selection in an embodiment of the present invention;
fig. 5 is a flow chart of another method of cell selection in an embodiment of the present invention;
fig. 6 is a block diagram of a ue according to an embodiment of the present invention;
fig. 7 is a block diagram of another ue in an embodiment of the present invention;
fig. 8 is a block diagram of another ue in an embodiment of the present invention;
fig. 9 is a block diagram of another ue in an embodiment of the present invention;
fig. 10 is a block diagram of another ue in an embodiment of the present invention;
fig. 11 is a block diagram of a network device according to an embodiment of the present invention;
fig. 12 is a block diagram of another network-side device according to an embodiment of the present invention;
fig. 13 is a block diagram of another network-side device according to an embodiment of the present invention;
fig. 14 is a block diagram of another network-side device according to an embodiment of the present invention;
fig. 15 is a block diagram of another network-side device in the embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the following description, for purposes of explanation and not limitation, specific details are set forth such as the particular system architecture, interfaces, techniques, etc., in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
The techniques described herein may be used in various communication systems, such as current 2G, 3G communication systems and next generation communication systems, such as Global System for Mobile communications (GSM), Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Wideband Code Division Multiple Access (WCDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), FDMA (SC-FDMA), General Packet Radio Service (GPRS), General Packet Radio Service (FDMA), Long Term Evolution (LTE, Long Term Evolution), and other types of communication systems.
Various aspects are described herein in connection with a user equipment and/or a base station controller.
A user equipment, which may be a wireless terminal or a wired terminal, may refer to a device that provides voice and/or data connectivity to a user, a handheld device having wireless connection capability, or other processing device connected to a wireless modem. Wireless terminals, which may be mobile terminals such as mobile telephones (or "cellular" telephones) and computers having mobile terminals, such as portable, pocket, hand-held, computer-included, or vehicle-mounted mobile devices, may communicate with one or more core networks via a Radio Access Network (e.g., RAN). For example, Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), and the like. A wireless Terminal may also be referred to as a system, a Subscriber Unit (Subscriber Unit), a Subscriber Station (Subscriber Station), a Mobile Station (Mobile), a Remote Station (Remote Station), an Access Point (Access Point), a Remote Terminal (Remote Terminal), an Access Terminal (Access Terminal), a User Terminal (User Terminal), a User Agent (User Agent), a User Device (User Device), or a User Equipment (User Equipment).
A base station (e.g., access point) can refer to a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminals. The base station may be configured to interconvert received air frames and IP packets as a router between the wireless terminal and the rest of the access network, which may include an Internet Protocol (IP) network. The base station may also coordinate management of attributes for the air interface. For example, the Base Station may be a Base Transceiver Station (BTS) in GSM or CDMA, a Base Station (NodeB) in WCDMA, or an evolved Node B (NodeB or eNB or e-NodeB) in LTE, and the present invention is not limited thereto.
The base station Controller may be a Base Station Controller (BSC) in GSM or CDMA, or may be a Radio Network Controller (RNC) in WCDMA, and the present invention is not limited thereto.
Additionally, the terms "system" and "network" are often used interchangeably herein. 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. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
An embodiment of the present invention provides a method for cell selection, as shown in fig. 1.
101. The user equipment obtains the service type of the cell service and the signal quality corresponding to the cell.
The cell is a cell where the user equipment is located and a neighboring cell of the cell where the user equipment is located. For example, 1) when the ue obtains from the neighbor list in the system message, the cell refers to the serving cell and all neighbors of the serving cell; 2) when the user equipment obtains the system broadcast message of the adjacent cell, the cell refers to the adjacent cell which is scanned by the service cell and the user equipment in an idle state and can correctly analyze the system message; 3) when the user equipment acquires the dedicated message, the cell refers to the serving cell and all the neighboring cells of the serving cell.
The service type includes any one of a CS (circuit switch) service and a PS (packet switch) service, where the CS service includes a voice service, a circuit data service, and the like, for example, 64K, fax, and the like; the PS service includes data service and the like, such as streaming media service and the like.
The PS service may be further subdivided into four service types, namely, a session (conversation) service, a streaming (streaming) service, an interactive (interactive) service, and a background (background) service. Based on the service classification of the PS service, the service types of the cell service may also be divided into five service types, namely, a CS conversation service, a PS streaming service, a PS interactive service, and a PS background service. The division of the service types of the cell services may be specifically set according to actual needs.
The service type may also be an application type, such as video phone, QQ, microblog, and the like.
Wherein the traffic types may also be divided on a different rate basis.
The signal quality may be, but is not limited to, information such as signal strength, signal to noise ratio, and the like, which is not limited in this embodiment of the present invention.
102. And selecting at least one cell capable of providing the service for the user equipment according to the service type of the cell service, the signal quality corresponding to the cell and the service type of the service initiated by the user equipment.
Wherein the step of selecting at least one cell capable of providing the service for the UE is triggered by UE when initiating service or by measurement report reporting.
The embodiment of the invention provides a cell selection method, wherein user equipment selects at least one cell capable of providing a service for the user equipment by acquiring the service type of cell service and the signal quality corresponding to the cell and according to the type of the service initiated by the user equipment and the acquired service type and signal quality of the cell service, so that the user equipment can be connected to the cell capable of providing the service for the service to complete a service process when initiating the service or switching, the signaling overhead load of a network side is reduced, and the user experience is improved.
An embodiment of the present invention provides a cell selection method, which is mainly applied to a cell reselection process of a user equipment, and as shown in fig. 2, the method is a method on a user equipment side.
201. And acquiring the service type of cell service and the signal quality corresponding to the cell.
The descriptions of the cell, the service type, and the signal quality are the same as the descriptions in step 101, and are not repeated again in this embodiment of the present invention.
The obtaining of the service type of the cell service may be implemented by the following three methods, a1, a2, and A3, which are specifically described below.
Method A1: and receiving a type indication message sent by a network side, and determining the service type of the cell service according to the type indication message.
Method A2: and acquiring the scrambling code of the cell, and determining the service type of the cell service according to the preset corresponding relation between the scrambling code segment and the service type and the scrambling code of the cell.
Method A3: and acquiring the scrambling code of the cell, determining the cell type of the cell according to the preset corresponding relation between the scrambling code segment and the cell type and the scrambling code of the cell, and determining the service type of the cell service according to the cell type of the cell.
And the equipment bearing the network side is a base station or a base station controller.
How the methods a1, a2, and A3 are implemented, respectively, is explained below.
Method A1: and receiving a type indication message sent by a network side, and determining the service type of the cell service according to the type indication message.
Wherein the type indication message is a system broadcast message or a dedicated message. The type indication message carries one of the following indication information, wherein the indication information comprises a cell type, a service type of a cell service, a corresponding relation between a scrambling code segment and the cell type and a corresponding relation between the scrambling code segment and the service type.
The system broadcast message and the dedicated message may be set by using a format specified by the system broadcast message and the dedicated message in the prior art, or may use a format of another message that can be applied under a heterogeneous network framework, which is not limited in this embodiment of the present invention. If the type indication message uses a System Broadcast message in the prior art, the indication Information carried in the type indication message may be set in SIB3(System Information Broadcast 3, System message Broadcast 3), or in a neighbor list.
Wherein the cell type is any one of a macro cell, a pico cell, and a femto cell.
Wherein, in the method a1, the determining the traffic type served by the cell can be realized by the following four methods a11, a12, a13 and a 14.
Method A11: and acquiring the service type of the cell service from the type indication message.
Method A12: and acquiring the cell type of the cell from the type indication message, and determining the service type of the cell service according to the cell type of the cell.
Method A13: acquiring the corresponding relation between the scrambling code segment and the service type from the type indication message; and acquiring the scrambling code of the cell, and determining the service type of the cell service according to the corresponding relation and the scrambling code of the cell.
Method A14: acquiring the corresponding relation between the scrambling code segment and the cell type from the type indication message; acquiring a scrambling code of the cell, and determining the cell type of the cell according to the corresponding relation and the scrambling code of the cell; and determining the service type of the cell service according to the cell type of the cell.
Based on the above four methods a11, a12, a13, and a14, when the type indication message is set as a system broadcast message of a network side, the system broadcast message is periodically sent to the user equipment by the network side, and then the user equipment directly analyzes the received system broadcast message when needing to acquire the service type of the cell service, so as to obtain the indication information carried by the system broadcast message, and acquire the service type of the cell service according to the indication information.
It should be noted that, in the method for acquiring the indication information of the neighbor cell type of the cell in which the ue is located in the cell, in addition to analyzing the system broadcast message corresponding to the neighbor cell and acquiring the service type of the neighbor cell service according to the indication information carried in the system broadcast message, the method may also acquire the service type of the neighbor cell by analyzing a neighbor cell list in the system broadcast message of the cell in which the ue is located and according to the indication information corresponding to the neighbor cell carried in the neighbor cell list.
Based on the above four methods a11, a12, a13, and a14, the type indication message may also be set as a dedicated message, which is sent by the network side to the ue when the ue is connected to the network side, and the ue parses the dedicated message to obtain the type indication message of the cell after receiving the dedicated message. .
It should be noted that, in the methods a2, A3, a13 and a14, the scrambling code is scrambling information that is set for each cell to prevent a plurality of pieces of information from interfering with each other when the information is transmitted to other cells or user equipments, and the scrambling information of each cell is independent; the scrambling code segment contains one or more scrambling codes, and may be continuous or discontinuous, for example, the scrambling code segment may be in the form of a scrambling code list. The correspondence between the scrambling code segment and the cell type may be set according to actual needs, which is not limited in the embodiment of the present invention. The method for acquiring the scrambling code of one of the cells can be implemented by descrambling the received system broadcast message of the one cell by the user equipment to acquire the scrambling code of the one cell.
In the above methods A12 and A14, the determination of the traffic type served by the cell according to the cell type of the cell can be implemented by the following two methods A15 and A16,
method A15: and determining the service type of the cell service according to the cell type of the cell and the preset corresponding relation between the cell type and the service type.
Method A16: receiving the corresponding relation between the cell type and the service type sent by the network side, and determining the service type of the cell service according to the cell type of the cell and the corresponding relation between the cell type and the service type sent by the network side.
In the methods a15 and a16, the correspondence between the cell type and the service type is that the macro cell corresponds to the CS service, and the micro cell corresponds to the PS service, which may also be set according to the actual situation, and this is not limited in the embodiment of the present invention.
Method A2: and acquiring the scrambling code of the cell, and determining the service type of the cell service according to the preset corresponding relation between the scrambling code segment and the service type and the scrambling code of the cell.
For example, assuming that the correspondence between the scrambling code segment and the service type is 001 to 010 corresponding to the CS service, if the cell scrambling code obtained by analyzing the broadcast message of the serving cell system is 001, the service type served by the cell may be determined to be the CS service according to the correspondence.
Method A3, obtaining the scrambling code of the cell, determining the cell type of the cell according to the preset corresponding relation between the scrambling code segment and the cell type and the scrambling code of the cell, and determining the service type of the cell according to the cell type of the cell.
For example, assuming that the correspondence between the scrambling code segment and the cell type is 001 to 010 correspondence to the microcell, and the service type of the cell service is the PS service, if the cell scrambling code obtained by analyzing the broadcast message of the serving cell system is 010, the service type of the cell may be determined to be the PS service according to the correspondence.
In the above methods a15, a2, and A3, the correspondence between the cell type and the scrambling code segment and the correspondence between the service type and the scrambling code segment are preset and stored in the user equipment according to the networking situation of the network side, and generally, a cell set as the same scrambling code segment corresponds to one cell type or the same scrambling code segment corresponds to one service type.
In another embodiment of the present invention, the acquiring the signal quality corresponding to the cell may be performed by the following two methods B1 and B2, which specifically include:
method B1: and acquiring measurement configuration parameters, wherein the measurement configuration parameters comprise measurement modes. And measuring the cell according to the measuring mode to obtain the signal quality corresponding to the cell. The measurement mode is any one of a periodic measurement mode and a measurement mode when a service is initiated.
The obtaining of the measurement configuration parameters may be implemented by the following method, specifically: and receiving the measurement configuration parameters sent by the network measurement. Or, obtaining from the preset measurement configuration parameters. The preset measurement configuration parameters are stored in the user equipment, and can be modified correspondingly according to the measurement configuration parameters sent by the network side.
Method B2: and searching the signal quality corresponding to the cell from the stored signal quality.
The stored signal quality is obtained for the user equipment using method B1 described above and stored in the user equipment.
202. And selecting at least one cell capable of providing the service for the user equipment according to the service type of the cell service, the signal quality corresponding to the cell and the service type of the service initiated by the user equipment.
The implementation method of step 202 is as follows.
2021. And selecting a cell which has the same service type as the service type of the service initiated by the user equipment and the corresponding signal quality exceeding a first threshold value from the cells, and determining the cell as the cell capable of providing the service for the user equipment.
If a cell cannot be selected in step 2021, perform step 2022; if at least one cell can be selected in step 2021, step 203 is performed.
2022. And selecting a cell which has a service type similar to the service type of the service initiated by the user equipment and the corresponding signal quality exceeding a first threshold value from the cells, determining the cell as a cell capable of providing the service for the user equipment, and executing step 203.
The service types are similar, that is, the service type of the cell service is different from the service type of the service initiated by the user equipment, but the cell can provide the service initiated by the user equipment. For example, when the service type of the service initiated by the ue is CS switching service, and the service types of the service of the serving cell and the neighboring cell thereof are both PS switching service, since the serving cell and the neighboring cell thereof can provide voice service, the selection method set forth in step 2022 may be performed in the serving cell and the neighboring cell thereof.
203. A cell is selected as a cell for providing services to the ue, and the implementation method is specifically described as follows.
When the cell capable of providing the service for the user equipment has only one cell, the cell is selected to provide the service for the user equipment.
When the cell capable of providing the service for the user equipment has at least two cells, selecting one cell from the at least two cells according to a selection standard to provide the service for the user equipment.
The selection criteria include one or more of the following criteria, where the criteria include signal quality of the cell, size of service rate, priority information, operating system, wireless access mode, and service load. Based on the selection criteria, when there are at least two cells in the cell capable of providing the service for the ue, the method for selecting one cell from the at least two cells as the cell providing the service for the ue according to the selection criteria is as follows.
And selecting a cell with the strongest signal quality from the at least two cells as a cell for providing service for the user equipment.
Or selecting a cell with the highest priority from the at least two cells as a cell for providing service for the user equipment.
Or, one cell belonging to a specific access mode is selected from the at least two cells as a cell providing a service for the ue, for example, belonging to an LTE (Long Term Evolution) system.
Or selecting one cell which is consistent with a preset frequency point or has the smallest difference with the preset frequency point from the at least two cells as the cell for providing the service for the user equipment.
Or, selecting a cell with the minimum traffic from the at least two cells as a cell providing service for the user equipment.
Or selecting a cell with a service rate consistent with or the smallest difference with the service rate initiated by the user equipment from the at least two cells as the cell for providing the service by the user equipment.
Of course, the embodiment of the present invention is not limited to only one of the above selection criteria for selection, and may also perform combined selection according to a plurality of the above criteria, for example, when there are at least two cells in the cell capable of providing service for the user equipment, a cell with a signal quality exceeding a second threshold and a highest priority and belonging to an LTE standard is selected from the at least two cells as the cell capable of providing service for the service.
Or, when there are at least two cells in the cell capable of providing the service, selecting a cell with signal quality exceeding a second threshold, highest priority, belonging to an LTE standard, and smallest service load from the at least two cells as the cell capable of providing the service.
It should be noted that, a specific setting method of the combination of the criteria is selected, and the embodiment of the present invention is not limited to this.
It is worth mentioning that, the second threshold may be sent by the network to the user equipment, wherein the criterion according to the type of service to be initiated and the access technology of the cell to be selected may be sent by the network to the user equipment, wherein the criterion according to the type of service to be initiated and the priority of the cell to be selected may be sent by the network to the user equipment, and wherein the criterion according to the service load condition of the service to be initiated and the cell to be selected may be sent by the network to the user equipment. The selection criteria may also be set in advance in the user equipment.
In addition, it should be noted that when it is determined that there is no cell capable of providing the service for the user equipment according to the service type of the cell service, the signal quality corresponding to the cell, and the service type of the service initiated by the user equipment, the cell where the user equipment is currently located is selected to initiate the service.
Further, the correspondence between the cell type, the service type and the measurement parameter type may be, but is not limited to, the content in table 1 below.
Table 1 correspondence between cell type, service type and measurement parameter type
Among them, wcdma (wideband Code Division Multiple access) is wideband Code Division Multiple access. N is an integer greater than 2.
In addition, it should be noted that, if the user equipment moves during the service process or a cell providing service for the user equipment is not optimal, the user equipment needs to perform cell handover to ensure that the user equipment can continuously process the service or better complete the service, an embodiment of the present invention further provides a cell selection method when the user equipment performs cell handover, as shown in fig. 3, the method includes:
301. and acquiring the service type of cell service and the signal quality corresponding to the cell.
The descriptions of the cell, the service type, and the signal quality are the same as the descriptions in step 101, and are not repeated again in this embodiment of the present invention.
The implementation method in step 301 is the same as the implementation method in step 201, and is not described in detail in this embodiment of the present invention.
302. And selecting at least one cell capable of providing the service for the user equipment according to the service type of the cell service, the signal quality corresponding to the cell and the service type of the service initiated by the user equipment.
Therein, step 302 may be implemented by methods C1 and C2.
Method C1, the user equipment selects at least one cell capable of providing the service for the user equipment according to the service type of the cell service and the signal quality corresponding to the cell obtained in step 301 and the service type of the service initiated by the user equipment, and sends the signal quality of the selected cell to the network side, so that the network side can select a cell with the best signal quality as the target cell according to the signal quality. The method set forth in step 2021 and step 2022 may be used by the network side to select a cell with the best signal quality as a target cell according to the service type served by the cell and the signal quality corresponding to the cell.
Method C2, sending the service type of the cell service and the signal quality corresponding to the cell to the network side, so that the network side can select at least one cell capable of providing the service for the user equipment according to the service type of the cell service, the signal quality corresponding to the cell and the service type of the service initiated by the user equipment, and select a cell with the best signal quality as the target cell according to the signal quality. The method for selecting, by the network side, at least one cell capable of providing the service for the ue according to the service type of the cell service, the signal quality corresponding to the cell, and the service type of the service initiated by the ue may use the methods set forth in step 2021 and step 2022, or may use methods with the same selection function, which is not limited in this embodiment of the present invention.
In addition, it should be noted that when it is determined that there is no cell capable of providing the service for the user equipment according to the service type of the cell service, the signal quality corresponding to the cell, and the service type of the service initiated by the user equipment, only one cell with the best signal quality is selected as the target cell according to the signal quality.
An embodiment of the present invention further provides a method for cell selection, as shown in fig. 4, the method is a method on a network side, and specifically includes:
401. the network side obtains the service type of the cell service and the signal quality corresponding to the cell.
The descriptions of the cell, the service type, and the signal quality are the same as the descriptions in step 101, and are not repeated again in this embodiment of the present invention.
The specific implementation steps of the network side acquiring the service type of the cell service and the signal quality corresponding to the cell are as follows.
The user equipment obtains the service type of the cell service and the signal quality corresponding to the cell.
And the user equipment sends the acquired service type of the cell service and the signal quality corresponding to the cell to a network side.
And the network side receives the service type of the cell service and the signal quality corresponding to the cell sent by the user equipment and acquires the service type and the signal quality of the cell.
The service type of the cell service and the signal quality corresponding to the cell may be sent to the network side through a measurement report.
402. And the network side selects at least one cell capable of providing the service for the user equipment according to the service type of the cell service, the signal quality corresponding to the cell and the service type of the service initiated by the user equipment.
The implementation method of step 402 is the same as the implementation method of step 202, and is not described in detail in this embodiment of the present invention.
The embodiment of the invention also provides a method for notifying the service type, which is completed by the network side and has the following implementation method:
and sending a type indication message to user equipment so that the user equipment determines the service type of the cell service according to the type indication message. The type indication message sent to the user equipment may be a network periodic broadcast type indication message, or may be actively issued to the user equipment when the user equipment initiates a service, which is not limited in this embodiment of the present invention.
Wherein, the type indication message is a system broadcast message or a special message; the type indication message carries any one of the following: the cell type, the service type of the cell service, the corresponding relation between the scrambling code segment and the cell type and the corresponding relation between the scrambling code segment and the service type.
Wherein, the implementation of sending the type indication message to the user equipment includes two methods of D1 and D2, as follows:
method D1, sending a traffic type indication message to the user equipment.
The description of the service type is the same as the description in step 101, and is not repeated again in this embodiment of the present invention.
Method D2, sending a cell type indication message to the user equipment.
Wherein the cell type is any one of a macro cell, a pico cell, and a femto cell.
In the method D1, the sending the type indication message to the user equipment may be implemented in the following three ways.
And D11, carrying the service types corresponding to the cells in the system broadcast messages of the cells.
And D12, configuring the service type of the neighbor cell service of each cell in the neighbor cell list of each cell.
D13, carrying the corresponding relation between the scrambling code segment and the service type in the system broadcast of each cell.
It should be noted that, when the network side uses the method D11 to perform the service type indication, the ue may receive the system broadcast messages of multiple cells, and perform parsing processing on the system broadcast messages of the multiple cells to obtain service types of respective services of the multiple cells, where the multiple cells are all cells that the ue scans in an idle state and can correctly parse the system broadcast messages, including a serving cell where the ue is located and an adjacent cell thereof.
When the network side uses the method D12 to perform the service type selection indication, the ue may directly query the service type of the neighbor cell service of the cell where the ue is located in the neighbor cell list of the cell where the ue is located.
When the network side uses the mode D13 to perform the service type selection indication, the correspondence between the scrambling code segment and the service type is configured by the network side according to the actual network architecture, and after receiving the system broadcast message of multiple cells, the user equipment may obtain the correspondence between the scrambling code segment and the service type from the system broadcast message of any cell, and obtain the service type of each cell service according to the scrambling code of each cell and the obtained correspondence between the scrambling code segment and the service type.
In the method D2, the sending the type indication message to the user equipment may be implemented in the following three ways.
D21, carrying the corresponding cell type in the system broadcast message of each cell.
And D22, configuring the cell type of the adjacent cell of each cell in the adjacent cell list of each cell.
D23, carrying the corresponding relation between the scrambling code segment and the cell type in the system broadcast of each cell.
It should be noted that the implementation of the method for indicating the cell type is similar to that of the method for indicating the service type, and this is not described in detail in this embodiment of the present invention.
The implementation method for determining the service type of the cell service by the user equipment according to the type indication message is the same as the implementation method set forth in step 201, and details of this embodiment of the present invention are omitted here.
It should be noted that, when the type indication message, such as the correspondence between the scrambling code segment and the service type, is preset and stored in the user equipment, the network side does not need to send the system broadcast message carrying the correspondence between the scrambling code segment and the service type to the user equipment that has set the correspondence between the scrambling code segment and the service type.
The embodiment of the invention also provides a method for informing the measuring mode, which is finished by the network side and has the following realization method:
acquiring a measuring mode;
and sending measurement configuration parameters to user equipment, wherein the measurement configuration parameters comprise the measurement mode, so that the user equipment measures the signal quality corresponding to the cell according to the measurement mode.
The measurement modes comprise a periodic measurement mode and a measurement mode when a service is initiated, and can be configured through an operation maintenance platform.
It should be noted that, if the measurement mode is set as one of the periodic measurement mode and the measurement mode at the time of service initiation and is stored in the ue, the network side does not need to send the measurement configuration parameters to the ue to which the measurement mode is set.
An embodiment of the present invention provides a user equipment, as shown in fig. 5, where the user equipment includes: an acquisition unit 51 and a selection unit 52.
An obtaining unit 51, configured to obtain a service type of a cell service and a signal quality corresponding to the cell.
A selecting unit 52, configured to select at least one cell capable of providing the service for the user equipment according to the service type of the cell service and the signal quality corresponding to the cell acquired by the acquiring unit 51, and the service type of the service initiated by the user equipment.
Optionally, as shown in fig. 6, the obtaining unit 51 includes: a first obtaining module 511, a first determining module 512, a second obtaining module 513, and a second determining module 514.
A first obtaining module 511, configured to obtain a scrambling code of the cell.
A first determining module 512, configured to determine a service type of the cell service according to a preset corresponding relationship between a scrambling code segment and the service type and a scrambling code of the cell of the first obtaining module 511.
A second obtaining module 513, configured to obtain a scrambling code of the cell.
A second determining module 514, configured to determine a cell type of the cell according to a preset correspondence between scrambling code segments and cell types and the scrambling code of the cell of the second obtaining module 513, and determine a service type of the cell service according to the cell type of the cell.
The type indication message carries one of the following indication information, wherein the indication information comprises a cell type, a service type of a cell service, a corresponding relation between a scrambling code segment and the cell type, and a corresponding relation between the scrambling code segment and the service type.
Optionally, as shown in fig. 7, the obtaining unit 51 further includes: a receiving module 515 and a third determining module 516.
A receiving module 515, configured to receive a type indication message sent by the network side.
A third determining module 516, configured to determine a service type of the cell service according to the type indication message received by the receiving module 515.
Optionally, as shown in fig. 8, the third determining module 516 specifically includes: an acquisition sub-module 5161 and a determination sub-module 5162.
An obtaining sub-module 5161, configured to obtain the service type of the cell service from the type indication message.
The obtaining sub-module 5161 is configured to obtain the cell type of the cell from the type indication message.
A determining submodule 5162, configured to determine a service type of the cell service according to the cell type acquired by the acquiring submodule 5161.
The obtaining sub-module 5161 is configured to obtain, from the type indication message, a corresponding relationship between a scrambling code segment and a service type, and obtain a scrambling code of the cell.
The determining submodule 5162 is configured to determine the service type of the cell service according to the correspondence obtained by the obtaining submodule 5161 and the scrambling code of the cell.
The obtaining sub-module 5161 is configured to obtain, from the type indication message, a corresponding relationship between a scrambling code segment and a cell type, and obtain a scrambling code of the cell.
The determining submodule 5162 is configured to determine a cell type of the cell according to the correspondence obtained by the obtaining submodule 5161 and the scrambling code of the cell, and determine a service type of the cell service according to the cell type determined by the third determining module.
Optionally, the determining submodule 5162 is specifically configured to determine the service type of the cell service according to the cell type of the cell and a preset correspondence between the cell type and the service type; or receiving a corresponding relation between a cell type and a service type sent by a network side, and determining the service type of the cell service according to the cell type of the cell and the corresponding relation between the cell type and the service type sent by the network side.
Optionally, as shown in fig. 9, the obtaining unit 51 further includes: a third obtaining module 517, a measuring module 518, and a searching module 519.
A third obtaining module 517, configured to obtain measurement configuration parameters, where the measurement configuration parameters include a measurement mode.
A measuring module 518, configured to measure the cell according to the measurement manner received by the third obtaining unit 517, so as to obtain the signal quality corresponding to the cell. The measurement mode is any one of a periodic measurement mode and a measurement mode when a service is initiated.
A searching module 519, configured to search the stored signal quality for the signal quality corresponding to the cell.
Optionally, as shown in fig. 10, the user equipment further includes: a second selection unit 53.
A second selecting unit 53, configured to select, when there is only one cell in the cells capable of providing the service for the service, the one cell as a cell capable of providing the service for the user equipment; when the cell capable of providing the service has at least two cells, selecting one cell from the at least two cells as a cell capable of providing the service for the user equipment according to a selection criterion.
The selection criteria include one or more of the following criteria, where the criteria include signal quality, priority information, operating system, radio access mode, and traffic load of the cell.
An embodiment of the present invention provides a network side device, and as shown in fig. 11, the network side device includes: an acquisition unit 111 and a selection unit 112.
An obtaining unit 111, configured to obtain a service type of a cell service and a signal quality corresponding to the cell.
Wherein the acquiring unit 111 includes: a receiving module 1111 and an obtaining module 1112.
A receiving module 1111, configured to receive a measurement report sent by a user equipment, where the measurement report includes a service type of a cell service acquired by the user equipment and a signal quality corresponding to the cell.
An obtaining module 1112, configured to parse the measurement report received by the receiving module 1111, and obtain a service type served by a cell and a signal quality corresponding to the cell.
A selecting unit 112, configured to select at least one cell capable of providing the service for the user equipment according to the service type of the cell service and the signal quality corresponding to the cell acquired by the acquiring unit 111, and the service type of the service initiated by the user equipment.
An embodiment of the present invention provides a network side device, as shown in fig. 12, including: an acquisition unit 121 and a transmission unit 122.
An obtaining unit 121, configured to obtain any one of a cell type, a service type of a cell service, a correspondence between a scrambling code segment and the cell type, and a correspondence between the scrambling code segment and the service type.
The cell type and the service type of the cell service can be configured through an operation maintenance platform; the corresponding relation between the scrambling code segment and the cell type and the corresponding relation between the scrambling code segment and the service type can be preset in the network side equipment or can be configured through an operation maintenance platform.
A sending unit 122, configured to construct a type indication message according to the information obtained by the obtaining unit, and send the type indication message to a user equipment, so that the user equipment determines a service type of a cell service according to the type indication message.
The type indication message may be a system broadcast message or a dedicated message, and carries any one of the following: the cell type, the service type of the cell service, the corresponding relation between the scrambling code segment and the cell type and the corresponding relation between the scrambling code segment and the service type.
Optionally, as shown in fig. 13, the network side device further includes: and a second transmitting unit 123.
A second sending unit 123, configured to send a selection criterion to a user equipment, so that the user equipment selects a cell from cells capable of providing a service for a service initiated by the user equipment according to the selection criterion. The selection criteria include one or more of the following criteria, and the selection criteria include signal quality, priority information, working system, wireless access mode and traffic load of the cell.
An embodiment of the present invention provides a network side device, as shown in fig. 14, including: acquisition section 141, and transmission section 142.
The obtaining unit 141 is configured to obtain a measurement mode.
A sending unit 142, configured to send a measurement configuration parameter to the ue, where the measurement configuration parameter includes the measurement mode, so that the ue measures the signal quality corresponding to the cell according to the measurement mode.
In the acquiring unit 141 and the sending unit 142, the measurement modes include a periodic measurement mode and a measurement mode at the time of service initiation, and may be configured by an operation maintenance platform.
Optionally, as shown in fig. 15, the network side device further includes: and a second transmitting unit 143.
A second sending unit 143, configured to send a selection criterion to a user equipment, so that the user equipment selects a cell from cells capable of providing a service for a service initiated by the user equipment according to the selection criterion. The selection criteria include one or more of the following criteria, and the selection criteria include signal quality, priority information, working system, wireless access mode and traffic load of the cell.
The embodiment of the invention provides two kinds of cell selection equipment, which comprise user equipment and network side equipment, wherein the user equipment selects at least one cell capable of providing service for the service by acquiring the service type of the cell service and the signal quality corresponding to the cell, and according to the type and the signal quality of the service initiated by the user equipment and the acquired service type of the cell service, so that the user equipment can be accurately connected to the cell capable of providing service for the service to complete the service process when initiating the service or switching, the signaling overhead load of the network side is reduced, and the user experience is improved.
In addition, in the embodiment, the user equipment may use multiple methods for acquiring the service type of the cell service and multiple methods for selecting a cell capable of providing a service for initiating the service by the user equipment, so that the user equipment can be more accurately connected to the cell capable of providing the service for the service when initiating the service to complete a service flow, thereby reducing signaling overhead load on a network side and improving user experience.
It will be 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 performed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to perform 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 several instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) or a processor (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: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (21)

1. A method of cell selection, comprising:
user equipment acquires the service type of cell service and the signal quality corresponding to the cell;
the user equipment selects at least one cell capable of providing the service for the user equipment according to the service type of the cell service, the signal quality corresponding to the cell and the service type of the service initiated by the user equipment;
the method for acquiring the service type of the cell service by the user equipment specifically comprises the following steps: the user equipment acquires the scrambling code of the cell, and determines the service type of the cell service according to the preset corresponding relation between the scrambling code segment and the service type and the scrambling code of the cell; or, the user equipment acquires the scrambling code of the cell and determines the cell type of the cell according to the preset corresponding relation between the scrambling code segment and the cell type; the user equipment determines the service type of the cell service according to the cell type of the cell; or, the user equipment receives a type indication message from a network side, and determines the service type of the cell service according to the type indication message.
2. The method of claim 1, wherein the type indication message carries any one of the following: the cell type, the service type of the cell service, the corresponding relation between the scrambling code segment and the cell type and the corresponding relation between the scrambling code segment and the service type.
3. The method of claim 1, wherein the determining the traffic type of the cell service according to the type indication message specifically comprises:
acquiring the service type of the cell service from the type indication message; alternatively, the first and second electrodes may be,
acquiring the corresponding relation between the scrambling code segment and the service type from the type indication message; and acquiring the scrambling code of the cell, and determining the service type of the cell service according to the corresponding relation and the scrambling code of the cell.
4. The method of claim 1, wherein the determining the traffic type of the cell service according to the type indication message specifically comprises:
acquiring the cell type of the cell from the type indication message, and determining the service type of the cell service according to the cell type of the cell; alternatively, the first and second electrodes may be,
acquiring the corresponding relation between the scrambling code segment and the cell type from the type indication message; acquiring a scrambling code of the cell, and determining the cell type of the cell according to the corresponding relation and the scrambling code of the cell; and determining the service type of the cell service according to the cell type of the cell.
5. The method of claim 4, wherein the determining the service type served by the cell according to the cell type of the cell specifically comprises:
determining the service type of the cell service according to the cell type of the cell and the preset corresponding relation between the cell type and the service type; alternatively, the first and second electrodes may be,
receiving the corresponding relation between the cell type and the service type sent by the network side, and determining the service type of the cell service according to the cell type of the cell and the corresponding relation between the cell type and the service type sent by the network side.
6. The method according to claim 1, wherein the obtaining the signal quality corresponding to the cell specifically comprises:
acquiring measurement configuration parameters, wherein the measurement configuration parameters comprise measurement modes, and measuring the cell according to the measurement modes to obtain the signal quality corresponding to the cell;
or searching the signal quality corresponding to the cell from the stored signal quality.
7. The method according to claim 6, wherein the measurement mode is any one of a periodic measurement mode and a measurement mode at the time of service initiation.
8. The method of claim 1, further comprising:
when the cell capable of providing the service for the user equipment has only one cell, selecting the cell as the cell providing the service for the user equipment; alternatively, the first and second electrodes may be,
when the cell capable of providing the service for the user equipment has at least two cells, selecting one cell from the at least two cells as the cell providing the service for the user equipment according to a selection standard.
9. The method of claim 8, wherein the selection criteria comprises one or more of the following criteria, the criteria comprising signal quality, priority information, operating mode, radio access mode, and traffic load of the cell.
10. A method for notifying a service type, comprising:
sending a type indication message to user equipment so that the user equipment determines the service type of cell service according to the type indication message, and selecting at least one cell capable of providing the service for the user equipment according to the service type of the cell service, the signal quality corresponding to the cell and the service type of the service initiated by the user equipment.
11. The method of claim 10, wherein the type indication message carries any one of the following: the cell type, the service type of the cell service, the corresponding relation between the scrambling code segment and the cell type and the corresponding relation between the scrambling code segment and the service type.
12. A user device, comprising:
an obtaining unit, configured to obtain a service type of a cell service and a signal quality corresponding to the cell;
a selecting unit, configured to select at least one cell capable of providing the service for the user equipment according to the service type of the cell service acquired by the acquiring unit, the signal quality corresponding to the cell, and the service type of the service initiated by the user equipment;
the acquiring unit specifically includes: the device comprises a first acquisition module and a first determination module; or, a second obtaining module and a second determining module; or, the receiving module and the third determining module;
the first obtaining module is configured to obtain a scrambling code of the cell;
the first determining module is configured to determine the service type of the cell service according to a preset corresponding relationship between a scrambling code segment and the service type and the scrambling code of the cell acquired by the first acquiring module;
the second obtaining module is configured to obtain a scrambling code of the cell;
the second determining module is configured to determine the cell type of the cell according to a preset correspondence between scrambling code segments and cell types and the scrambling code of the cell acquired by the second acquiring module, and determine the service type of the cell service according to the cell type of the cell;
the receiving module is used for receiving a type indication message from a network side;
the third determining module determines the service type of the cell service according to the type indication message received by the receiving module.
13. The UE of claim 12, wherein the type indication message carries any one of the following: the cell type, the service type of the cell service, the corresponding relation between the scrambling code segment and the cell type and the corresponding relation between the scrambling code segment and the service type.
14. The ue of claim 12, wherein the third determining module specifically comprises:
an obtaining submodule, configured to obtain a service type of the cell service from the type indication message;
the obtaining submodule is used for obtaining the corresponding relation between the scrambling code segment and the service type from the type indication message and obtaining the scrambling code of the cell;
and the determining submodule is used for determining the service type of the cell service according to the corresponding relation acquired by the acquiring submodule and the scrambling code of the cell.
15. The UE of claim 14, wherein the obtaining sub-module is further configured to obtain a cell type of the cell from the type indication message;
the determining submodule is further configured to determine a service type of the cell service according to the cell type acquired by the second acquiring submodule;
the obtaining submodule is further configured to obtain a correspondence between a scrambling code segment and a cell type from the type indication message, and obtain a scrambling code of the cell;
the determining submodule is further configured to determine a cell type of the cell according to the correspondence obtained by the obtaining submodule and the scrambling code of the cell, and determine a service type of the cell service according to the cell type.
16. The ue according to claim 15, wherein the determining sub-module is specifically configured to determine the service type of the cell service according to the cell type of the cell and a preset correspondence between the cell type and the service type; or receiving a corresponding relation between a cell type and a service type sent by a network side, and determining the service type of the cell service according to the cell type of the cell and the corresponding relation between the cell type and the service type sent by the network side.
17. The ue of claim 12, wherein the obtaining unit further comprises:
a third obtaining module, configured to obtain measurement configuration parameters, where the measurement configuration parameters include a measurement mode;
the measurement module is used for measuring the cell according to the measurement mode received by the third acquisition module to obtain the signal quality corresponding to the cell;
and the searching module is used for searching the signal quality corresponding to the cell from the stored signal quality.
18. The UE of claim 17, wherein the measurement mode is any one of a periodic measurement mode and a measurement mode at service initiation.
19. The user equipment of claim 12, further comprising:
a second selecting unit, configured to select the cell as a cell capable of providing the service for the user equipment when there is only one cell in the cell capable of providing the service for the user equipment; when there are at least two cells in the cell capable of providing the service for the user equipment, selecting one cell from the at least two cells as a cell capable of providing the service for the user equipment according to a selection criterion.
20. The UE of claim 19, wherein the selection criteria comprises one or more of the following criteria, the criteria comprising signal quality, priority information, operating mode, radio access mode, and traffic load of the cell.
21. A network-side device, comprising a storage medium for storing program code and a processor for executing the program code to implement the method according to claim 10 or 11.
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