CN111885674A - Cell selection method, lightweight terminal and network equipment - Google Patents
Cell selection method, lightweight terminal and network equipment Download PDFInfo
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- CN111885674A CN111885674A CN202010623854.0A CN202010623854A CN111885674A CN 111885674 A CN111885674 A CN 111885674A CN 202010623854 A CN202010623854 A CN 202010623854A CN 111885674 A CN111885674 A CN 111885674A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
- H04J11/0069—Cell search, i.e. determining cell identity [cell-ID]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/20—Selecting an access point
Abstract
The embodiment of the invention discloses a cell selection method, a lightweight terminal and network equipment, which are applied to the technical field of communication and can solve the problem that a lightweight terminal can not be accessed into a cell to cause that service can not be ensured. The method comprises the following steps: the method comprises the steps that a lightweight terminal acquires system information of at least one cell, wherein the system information comprises access priority of each cell in the at least one cell aiming at the lightweight terminal; and the lightweight terminal selects an accessed target cell according to the access priority of each cell in the at least one cell aiming at the lightweight terminal, wherein the target cell is the cell with the highest access priority aiming at the lightweight terminal in the at least one cell.
Description
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to a cell selection method, a lightweight terminal and network equipment.
Background
With the development of mobile communication technology, the types of terminals are increasing. Lightweight terminals (RepCap UEs) have fewer antennas relative to normal terminals and the requirements of the lightweight terminals on bandwidth and delay are lower relative to normal terminals, so some base stations may deny access to such lightweight terminals. For example, when a cell is heavily loaded, it may be denied that a lightweight terminal accesses the cell, or some special base station devices support access of the lightweight terminal, so that the lightweight terminal may not access the cell, which may result in that a service cannot be guaranteed.
Disclosure of Invention
The embodiment of the invention provides a cell selection method, a lightweight terminal and network equipment, which are used for solving the problem that in the prior art, a lightweight terminal can not be accessed into a cell, so that the service can not be ensured. In order to solve the above technical problem, the embodiment of the present invention is implemented as follows:
in a first aspect, a cell selection method is provided, including: the method comprises the steps that a lightweight terminal acquires system information of at least one cell, wherein the system information comprises access priority of each cell in the at least one cell aiming at the lightweight terminal;
and the lightweight terminal selects an accessed target cell according to the access priority of each cell in the at least one cell aiming at the lightweight terminal, wherein the target cell is the cell with the highest access priority aiming at the lightweight terminal in the at least one cell.
As an optional implementation manner, in a first aspect of the embodiment of the present invention, a lightweight terminal acquiring a system message of at least one cell includes:
and starting the lightweight terminal, and searching the cell to acquire the system message of at least one searched cell.
As an optional implementation manner, in a first aspect of the embodiment of the present invention, a lightweight terminal acquiring a system message of at least one cell includes:
the lightweight terminal resides in the current cell, and cell measurement is performed on the current cell and a neighboring cell of the current cell to obtain the searched system message of at least one cell, wherein the system message of at least one cell comprises the system message of the current cell.
As an optional implementation manner, in the first aspect of the embodiment of the present invention, the target cell is a cell with the highest access priority for the lightweight terminal, among at least one cell that satisfies the cell selection criterion.
In a second aspect, a method for cell selection is provided, the method comprising: and broadcasting a system message, wherein the system message comprises access priority information of each cell in at least one cell aiming at the lightweight terminal, so that the lightweight terminal selects an accessed target cell according to the access priority of each cell in the at least one cell aiming at the lightweight terminal, and the target cell is the cell with the highest access priority aiming at the lightweight terminal in the at least one cell.
As an optional implementation manner, in the second aspect of the embodiment of the present invention, the target cell is a cell with the highest access priority for the lightweight terminal, among at least one cell that satisfies the cell selection criterion.
As an optional implementation manner, in the second aspect of the embodiment of the present invention, the method further includes:
and adjusting the access priority of each cell aiming at the light-weight terminal according to the cell load state of each cell in at least one cell.
As an optional implementation manner, in the second aspect of the embodiment of the present invention, adjusting an access priority of each cell for a lightweight terminal according to a cell load status of each cell in at least one cell includes:
and adjusting the access priority of each cell aiming at the lightweight terminal in a preset time period according to the cell load state of each cell in at least one cell.
In a third aspect, a lightweight terminal is provided, including: the system comprises a sending module, a receiving module and a sending module, wherein the sending module is used for obtaining a system message of at least one cell, and the system message comprises the access priority of each cell in the at least one cell aiming at the lightweight terminal;
and the processing module is used for selecting an accessed target cell by the lightweight terminal according to the access priority of each cell aiming at the lightweight terminal in at least one cell, wherein the target cell is the cell with the highest access priority aiming at the lightweight terminal in at least one cell.
In a fourth aspect, a network device is provided, comprising: the sending module is used for broadcasting a system message, wherein the system message comprises the access priority of each cell in at least one cell for the lightweight terminal, so that the lightweight terminal selects an accessed target cell according to the access priority of each cell in the at least one cell for the lightweight terminal, and the target cell is the cell with the highest access priority for the lightweight terminal in the at least one cell.
In a fifth aspect, a lightweight terminal is provided, including: a memory storing executable program code;
a processor coupled to the memory;
the processor calls the executable program code stored in the memory to execute the cell selection method in the first aspect of the embodiment of the present invention.
In a sixth aspect, a network device is provided, comprising: the method comprises the following steps: a memory storing executable program code;
a processor coupled to the memory;
the processor calls the executable program code stored in the memory to execute the cell selection method in the first aspect of the embodiment of the present invention.
In a seventh aspect, a computer-readable storage medium is provided, which stores a computer program, where the computer program enables a computer to execute the cell selection method in the first aspect of the embodiment of the present invention or execute the cell selection method in the second aspect of the embodiment of the present invention. Computer-readable storage media include ROM/RAM, magnetic or optical disks, and the like.
In an eighth aspect, a computer program product is provided, which, when run on a computer, causes the computer to perform the cell selection method of the first aspect of an embodiment of the present invention or the cell selection method of the second aspect of an embodiment of the present invention.
In a ninth aspect, an application distribution platform is provided, where the application distribution platform is configured to distribute a computer program product, where the computer program product, when running on a computer, causes the computer to execute the cell selection method according to the first aspect of the embodiment of the present invention or execute the cell selection method according to the second aspect of the embodiment of the present invention.
Compared with the prior art, the embodiment of the invention has the following beneficial effects:
in the embodiment of the invention, the lightweight terminal can obtain the system message broadcasted by at least one cell, and the system message comprises the access priority of each cell in the at least one cell aiming at the lightweight terminal, so that the lightweight terminal can select the target cell with the highest access priority according to the access priority of each cell in the at least one cell aiming at the lightweight terminal. By the scheme, the lightweight terminal can acquire the access priority of at least one cell for the lightweight terminal through the system information broadcast by the network equipment, and select the cell with the highest priority for access based on the access priority of the at least one cell, so that the lightweight terminal can judge the cell to which the lightweight terminal can access, and the service of the lightweight terminal is ensured.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of an architecture of a wireless communication system according to an embodiment of the present invention;
fig. 2 is a first schematic diagram illustrating a cell selection method according to an embodiment of the present invention;
fig. 3 is a schematic diagram illustrating a cell selection method 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;
fig. 5 is a schematic structural diagram of a base station according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a mobile phone according to an 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 some, not all, embodiments of the present invention. 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.
The terms "comprises," "comprising," and any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, 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 "e.g.," 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.
The embodiment of the invention provides a cell selection method, a lightweight terminal and network equipment, wherein the lightweight terminal can acquire the access priority of at least one cell for the lightweight terminal through a system message broadcast by the network equipment, and selects a cell with the highest priority for access based on the access priority of the at least one cell, so that the lightweight terminal can judge the cells which can be accessed by the lightweight terminal, and the service of the lightweight terminal is ensured.
For example, the cell selection method provided in the embodiment of the present invention may be applied to the wireless communication system shown in fig. 1, where the network device in fig. 1 may broadcast a system message, the terminal device in fig. 1 may be a lightweight terminal, and may receive the system message broadcast by the network device, so as to obtain access priority information of at least one cell served by the network device for the lightweight terminal, and the lightweight terminal may obtain access priority of the at least one cell for the lightweight terminal through the system message broadcast by the network device, and select a cell with the highest priority for access based on the access priority of the at least one cell, so that the lightweight terminal may determine the cell that the lightweight terminal can access, and ensure a service of the lightweight terminal.
It should be noted that only one network device is shown in fig. 1, and in practice, a lightweight terminal may receive a system message broadcast by one or more network devices.
The network device in the embodiment of the present invention may be an LTE system, an NR communication system, or an evolved Node B (eNB or e-NodeB) macro base station, a micro base station (also referred to as a "small base station"), a pico base station, an Access Point (AP), a Transmission Point (TP), a new generation base station (new generation Node B, gNodeB), or the like in an authorized assisted access long term evolution (LAA-LTE) system. The network device may also be another type of network device in a future 5G communication system or a future evolved network.
The lightweight terminal in the embodiment of the present invention may be User Equipment (UE). The lightweight terminal may be a Personal Communication Service (PCS) phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), or the like, and may also be a mobile phone, a Mobile Station (MS), a mobile terminal (mobile terminal), a notebook computer, or the like, and may communicate with one or more core networks through a Radio Access Network (RAN). For example, a lightweight terminal may be a mobile telephone (or "cellular" telephone), or a computer, etc., and may also be a portable, pocket, hand-held, computer-included, or vehicle-mounted mobile device that exchanges voice and/or data with a radio access network. The lightweight terminal may also be a handheld device with wireless communication functionality, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a lightweight terminal in a future 5G network or a lightweight terminal in a future evolved network, etc. The above is merely an example, and the practical application is not limited thereto.
The cell access method provided by the embodiment of the present invention may be implemented through interaction between a lightweight terminal and a network device, and an exemplary description is provided below.
The cell access method provided by the embodiment of the present invention may be applied to a scenario of starting up to access a cell, or may be applied to a scenario of cell reselection (which may be a scenario of cell reselection caused by movement of a lightweight terminal), and the following exemplary descriptions are respectively performed on the two scenarios.
First, start up and access to the scene of the cell
As shown in fig. 2, an embodiment of the present invention provides a cell access method, which may include the following steps:
201. the network device broadcasts a system message.
The system message includes access priority of each cell in at least one cell for the lightweight terminal, so that the lightweight terminal selects an accessed target cell according to the access priority of each cell in the at least one cell for the lightweight terminal, and the target cell is a cell with the highest access priority for the lightweight terminal in the at least one cell.
Optionally, in order to support a lightweight terminal (i.e., a RepCap UE) to reasonably select a cell, it is necessary to configure, in a system information block 1 (SIB 1) of each cell, a priority level supported by a current cell for a RepCap UE broadcast to the RepCap UE that wants to access.
Illustratively, this may be achieved by SIB1 information (message) in the existing standard protocol 38.331, and SIB1 message in 38.331 may be modified as follows:
the underlined and bold content is newly added content, and the rest content is the same as the content in the SIB1 message in the original standard protocol 38.331.
In the protocol, the RepCap UE is written as
The newly added content is access priority information of the RepCap UE, and the access priority can be indicated by a number and can be one of 0, 1, 2 and 3.
Optionally, the access priority is characterized to be higher and higher from 0 to 3, that is, 3 represents the highest access priority, and 0 represents the lowest access priority.
Illustratively, the newly added redcpu-access priority parameter describes:
0 indicates that the cell does not support access for RepCap UEs.
1 denotes a limited service supporting only a RepCap UE, such as an emergency call or the like.
2 denotes the capability to support only basic voice services such as voice calls and emergency calls, but not others. The bandwidth minimum Part (BWP) is allocated to the resource, and only the resource required for meeting the call is allocated when applying for the resource. And scheduling the RepCap UE as less as possible when the call is not carried out in the scheduling, and saving resources for scheduling other normal terminal equipment.
And 3 denotes the complete support of the RedCap UE service capability. Such as the ability to support telephony services, data services, location services, etc.
202. And the lightweight terminal is started and carries out cell search.
203. And the lightweight terminal acquires the system message of the searched at least one cell.
The system message of at least one cell acquired by the lightweight terminal includes the access priority of each cell in the at least one cell for the priority information accessed by the lightweight terminal.
In the embodiment of the present invention, the SIB1 message of each cell may carry the access priority of the cell for the priority information of the lightweight terminal access.
204. And the lightweight terminal selects a target cell for initial access according to the access priority of each cell in at least one cell aiming at the priority information accessed by the lightweight terminal.
The target cell is a cell with the highest access priority of the priorities accessed to the lightweight terminal in at least one cell.
Optionally, the target cell is specifically a cell with the highest access priority for the lightweight terminal in at least one cell that meets the cell selection criterion.
The cell selection criterion is satisfied, which means that a new cell selection S criterion is satisfied.
When the terminal device performs cell selection, it needs to determine whether a cell meets a cell selection S criterion, where the basis of the cell selection S criterion is Reference Single Received Power (RSRP) of a cell reference signal.
The cell selection S criterion is met, and the details are as follows:
Srxlev＞0；
Srxlev＝Qrxlevmeas-(Qrxlevmin+Qrxlevminoffset)-Pcompensation；
Pcompensation＝max(PMax-UE Maximum Outpower,0)。
the meaning of each parameter is as follows:
1. srxlev: the cell selects the S value in dB.
2. Qrxlevmeas, the RSRP value of the measured cell, in dBm.
3. Qrxlevmin-cell minimum receive level in dBm, (this parameter may affect user access).
4. Qrxlevminooffset: reducing ping-pong between Public Land Mobile Networks (PLMNs) and this parameter is only used when the terminal device is camped on a visited PLMN, periodically searching for a higher level PLMN.
5. PMax: the maximum uplink transmission power allowed by the terminal equipment in the cell.
6. UE Maximum Outpower: maximum uplink transmit power determined by the terminal device capabilities.
In the embodiment of the invention, the lightweight terminal can obtain the system message broadcasted by at least one cell in the scene of starting the access cell, and the system message comprises the access priority of each cell in the at least one cell aiming at the lightweight terminal, so that the lightweight terminal can select the target cell with the highest access priority according to the access priority of each cell in the at least one cell aiming at the lightweight terminal. By the scheme, the lightweight terminal can acquire the access priority of at least one cell for the lightweight terminal through the system information broadcast by the network equipment, and select the cell with the highest priority for access based on the access priority of the at least one cell, so that the lightweight terminal can judge the cell to which the lightweight terminal can access, and the service of the lightweight terminal is ensured.
Optionally, based on the description of the redcpu-access priority parameter, in a scenario where the RepCap UE is powered on to access the cell, the cell may be selected according to the following manner:
1. if the priority of the cell is 0, the RedCap UE does not access the cell;
2. if the priority of the cell is 1, the RedCap UE marks the cell as a candidate level of 1 and continues to search other cells, if no other cell with the priority higher than 1 is searched, the cell is selected to reside under the condition that the residence is met, and if a cell with the priority higher than 1 of other cells is searched, other cells are selected to reside.
3. If the priority of the cell is 2, the RedCap UE marks the cell as a candidate level of 2 and continues to search other cells, if no other cell with the priority higher than 2 is searched, the cell is selected to reside under the condition that the residence is met, and if a cell with the priority higher than 2 of other cells is searched, other cells are selected to reside.
4. And if the priority of the cell is 3, marking the candidate level of the cell as 3 by the RedCap UE, and accessing the cell if the cell meets the residence condition.
Wherein the cell satisfying the camping condition may satisfy a cell selection S criterion for the cell.
Second, cell reselection scenario
As shown in fig. 3, an embodiment of the present invention provides a cell access method, which may include the following steps:
301. the network device broadcasts a system message.
The system message includes access priority of each cell in at least one cell for the lightweight terminal, so that the lightweight terminal selects an accessed target cell according to the access priority of each cell in the at least one cell for the lightweight terminal, and the target cell is a cell with the highest access priority for the lightweight terminal in the at least one cell.
302. And the lightweight terminal resides in the current cell and performs cell measurement on the current cell and the adjacent cell of the current cell.
303. And the lightweight terminal acquires the system message of the searched at least one cell.
The system information of at least one cell includes system information of a current cell and system information of a neighboring cell (neighboring cell) of the current cell. The system message of at least one cell acquired by the lightweight terminal includes the access priority of each cell in the at least one cell for the lightweight terminal.
304. And the lightweight terminal selects the target cell as a reselection cell according to the access priority of each cell in at least one cell aiming at the lightweight terminal.
The target cell is a cell with the highest access priority to the lightweight terminal in at least one cell.
305. And the lightweight terminal is switched from the current cell to the target cell.
Optionally, in a cell reselection scenario caused by movement of the lightweight terminal, a manner of selecting a cell is similar to that in a scenario of starting up to access the cell, and details are not repeated here.
Optionally, the embodiment of the present invention may also be applied to a cell load change scenario, and specifically, the priority of the cell may be adjusted according to a cell load condition.
In the embodiment of the invention, in a cell reselection scene, the lightweight terminal can obtain the system message broadcasted by at least one cell, and the system message comprises the access priority of each cell in the at least one cell for the lightweight terminal, so that the lightweight terminal can select the target cell with the highest access priority according to the access priority of each cell in the at least one cell for the lightweight terminal. By the scheme, the lightweight terminal can acquire the access priority of at least one cell for the lightweight terminal through the system information broadcast by the network equipment, and select the cell with the highest priority for access based on the access priority of the at least one cell, so that the lightweight terminal can judge the cell to which the lightweight terminal can access, and the service of the lightweight terminal is ensured.
Third, cell load change scene
In the embodiment of the present invention, the network device may further adjust an access priority of each cell for the lightweight terminal according to a cell load state of each cell in the at least one cell.
Optionally, adjusting the access priority of each cell for the lightweight terminal according to the cell load status of each cell in the at least one cell includes: and adjusting the access priority of each cell aiming at the lightweight terminal in a preset time period according to the cell load state of each cell in at least one cell.
For example, in a specific cell load change scenario, the method for adjusting the access priority of each cell for the lightweight terminal is as follows:
1. if the current cell load overload is of a medium level (for example, normal terminal equipment resource application is slow, scheduling is slow, and users in the cell are many), the redcpu-access priority configuration in the SIB1 is updated, the update priority is 2, the capabilities of all redcpu UE data services and positioning and the like in the cell are limited, and only the normal voice and emergency dialing capabilities are reserved. Therefore, more resources are released to be used by normal terminal equipment, the service capability of other terminal equipment is met, and the basic voice capability of the RedCap UE is reserved. In order to avoid frequent movement of the user (faster movement out of the cell), a reasonable update priority period should be set, for example, after the update priority is 2, the update priority should be 3 at least two hours after meeting the condition of low overload or normal load.
2. If the current cell load overload is high level (for example, normal UE resource application is very slow and there are very many users in the cell), the redcpu-access priority configuration in the system message SIB is updated, the update priority is 1, and only the capabilities of the redmap UE and the like are reserved. Therefore, more resources are released to be used by normal terminal equipment, the service capability of other terminal equipment is met, and meanwhile, the emergency call capability of the RedCap UE is reserved. To avoid frequent updating of the priority due to frequent user movement (more moving out of the cell faster), a reasonable period of updating the priority should be set. For example, after the update priority is 1, the update priority should be 2 or 3 at least two hours apart when the overload is low or the load is normal.
In the embodiment of the invention, the redcapacity-Access priority configuration in the SIB can be updated according to the cell load overload condition, so that the access priority of the cell for the RedCap UE can be flexibly adjusted.
As shown in fig. 4, an embodiment of the present invention provides a lightweight terminal, including:
a receiving module 401, configured to obtain a system message of at least one cell, where the system message includes an access priority of each cell in the at least one cell for a lightweight terminal;
a processing module 402, configured to select, by the lightweight terminal, an accessed target cell according to an access priority of each cell in the at least one cell for the lightweight terminal, where the target cell is a cell with a highest access priority for the lightweight terminal in the at least one cell.
Optionally, the receiving module 401 is specifically configured to control the lightweight terminal to start up, and perform cell search to obtain a system message of at least one searched cell.
Optionally, the receiving module 401 is specifically configured to, when the lightweight terminal resides in the current cell, perform cell measurement on the current cell and a neighboring cell of the current cell to obtain a system message of the searched at least one cell, where the system message of the at least one cell includes the system message of the current cell.
Optionally, the target cell is specifically a cell with the highest access priority for the lightweight terminal in at least one cell that meets the cell selection criterion.
As shown in fig. 5, an embodiment of the present invention provides a network device, including:
the sending module 501 is configured to broadcast a system message, where the system message includes an access priority of each cell in at least one cell for the lightweight terminal, so that the lightweight terminal selects an accessed target cell according to the access priority of each cell in the at least one cell for the lightweight terminal, and the target cell is a cell in the at least one cell with the highest access priority for the lightweight terminal.
Optionally, the target cell is specifically a cell with the highest access priority for the lightweight terminal in at least one cell that meets the cell selection criterion.
Optionally, the method further includes:
a processing module 502, configured to adjust an access priority of each cell for a lightweight terminal according to a cell load status of each cell in at least one cell.
Optionally, the processing module 502 is specifically configured to adjust, according to a cell load state of each cell in the at least one cell, an access priority of each cell for the lightweight terminal at a preset time period.
An embodiment of the present invention further provides a lightweight terminal, which may include:
a memory storing executable program code;
a processor coupled to the memory;
the processor calls the executable program code stored in the memory to execute the cell selection method executed by the network device in each method embodiment.
An embodiment of the present invention further provides a network device, which may include:
a memory storing executable program code;
a processor coupled to the memory;
the processor calls the executable program code stored in the memory to execute the cell selection method executed by the network device in each method embodiment.
As shown in fig. 6, the network device in the embodiment of the present invention may be a base station, where the base station includes:
the transmitter 601 is configured to broadcast a system message, where the system message includes an access priority of each cell in at least one cell for a lightweight terminal, so that the lightweight terminal selects an access target cell according to the access priority of each cell in the at least one cell for the lightweight terminal, and the target cell is a cell in the at least one cell with a highest access priority for the lightweight terminal.
Optionally, the target cell is specifically a cell with the highest access priority for the lightweight terminal in at least one cell that meets the cell selection criterion.
Optionally, the method further includes:
a processor 602, configured to adjust an access priority of each cell for a lightweight terminal according to a cell load status of each cell in at least one cell.
Optionally, the processor 602 is specifically configured to adjust an access priority of each cell for the lightweight terminal according to a cell load state of each cell in the at least one cell, at a preset time period.
The lightweight terminal in the embodiment of the invention can be a mobile phone.
As shown in fig. 7, the mobile phone may include: radio Frequency (RF) circuitry 1110, memory 1120, input unit 1130, display unit 1140, sensors 1150, audio circuitry 1160, wireless fidelity (WiFi) module 1170, processor 1180, and power supply 1190. The rf circuit 1110 includes a receiver 1111 and a transmitter 1112. Those skilled in the art will appreciate that the handset configuration shown in fig. 7 is not intended to be limiting and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
The memory 1120 may be used to store software programs and modules, and the processor 1180 may execute various functional applications and data processing of the mobile phone by operating the software programs and modules stored in the memory 1120. The memory 1120 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 1120 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
The input unit 1130 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the cellular phone. Specifically, the input unit 1130 may include a touch panel 1131 and other input devices 1132. Touch panel 1131, also referred to as a touch screen, can collect touch operations of a user on or near the touch panel 1131 (for example, operations of the user on or near touch panel 1131 by using any suitable object or accessory such as a finger or a stylus pen), and drive corresponding connection devices according to a preset program. Alternatively, the touch panel 1131 may include two parts, namely, a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 1180, and can receive and execute commands sent by the processor 1180. In addition, the touch panel 1131 can be implemented by using various types, such as resistive, capacitive, infrared, and surface acoustic wave. The input unit 1130 may include other input devices 1132 in addition to the touch panel 1131. In particular, other input devices 1132 may include, but are not limited to, one or more of a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like.
The display unit 1140 may be used to display information input by the user or information provided to the user and various menus of the cellular phone. The display unit 1140 may include a display panel 1141, and optionally, the display panel 1141 may be configured in the form of a Liquid Crystal Display (LCD), an organic light-Emitting diode (OLED), or the like. Further, the touch panel 1131 can cover the display panel 1141, and when the touch panel 1131 detects a touch operation on or near the touch panel, the touch panel is transmitted to the processor 1180 to determine the type of the touch event, and then the processor 1180 provides a corresponding visual output on the display panel 1141 according to the type of the touch event. Although in fig. 7, the touch panel 1131 and the display panel 1141 are two independent components to implement the input and output functions of the mobile phone, in some embodiments, the touch panel 1131 and the display panel 1141 may be integrated to implement the input and output functions of the mobile phone.
The handset may also include at least one sensor 1150, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor and a proximity sensor, wherein the ambient light sensor may adjust the brightness of the display panel 1141 according to the brightness of ambient light, and the proximity sensor may turn off the display panel 1141 and/or the backlight when the mobile phone moves to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally, three axes), can detect the magnitude and direction of gravity when stationary, and can be used for applications of recognizing the posture of a mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer and tapping), and the like; as for other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which can be configured on the mobile phone, further description is omitted here.
WiFi belongs to short-distance wireless transmission technology, and the cell phone can help a user to receive and send e-mails, browse webpages, access streaming media and the like through the WiFi module 1170, and provides wireless broadband internet access for the user. Although fig. 7 shows the WiFi module 1170, it is understood that it does not belong to the essential constitution of the handset, and can be omitted entirely as needed within the scope not changing the essence of the invention.
The processor 1180 is a control center of the mobile phone, and is connected to various parts of the whole mobile phone through various interfaces and lines, and executes various functions of the mobile phone and processes data by operating or executing software programs and/or modules stored in the memory 1120 and calling data stored in the memory 1120, thereby performing overall monitoring of the mobile phone. Optionally, processor 1180 may include one or more processing units; preferably, the processor 1180 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated within processor 1180.
The phone also includes a power supply 1190 (e.g., a battery) for powering the various components, and preferably, the power supply may be logically connected to the processor 1180 via a power management system, so that the power management system may manage charging, discharging, and power consumption management functions. Although not shown, the mobile phone may further include a camera, a bluetooth module, etc., which are not described herein.
In this embodiment of the present invention, the RF circuit 1110 is configured to obtain a system message of at least one cell, where the system message includes an access priority of each cell in the at least one cell for a lightweight terminal;
and the processor 1180 is configured to select, by the lightweight terminal, an accessed target cell according to an access priority of each cell in the at least one cell for the lightweight terminal, where the target cell is a cell with a highest access priority for the lightweight terminal in the at least one cell.
Optionally, the RF circuit 1110 is specifically configured to control the lightweight terminal to power on, and perform cell search to obtain a system message of at least one searched cell.
Optionally, the RF circuit 1110 is specifically configured to perform cell measurement on the current cell and a neighboring cell of the current cell when the lightweight terminal resides in the current cell, so as to obtain a system message of the searched at least one cell, where the system message of the at least one cell includes the system message of the current cell.
Optionally, the target cell is specifically a cell with the highest access priority for the lightweight terminal in at least one cell that meets the cell selection criterion.
Embodiments of the present invention provide a computer-readable storage medium storing a computer program, wherein the computer program causes a computer to execute some or all of the steps of the method as in the above method embodiments.
Embodiments of the present invention also provide a computer program product, wherein the computer program product, when run on a computer, causes the computer to perform some or all of the steps of the method as in the above method embodiments.
Embodiments of the present invention further provide an application publishing platform, where the application publishing platform is configured to publish a computer program product, where the computer program product, when running on a computer, causes the computer to perform some or all of the steps of the method in the above method embodiments.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. Those skilled in the art should also appreciate that the embodiments described in this specification are exemplary and alternative embodiments, and that the acts and modules illustrated are not required in order to practice the invention.
The terminal device provided by the embodiment of the present invention can implement each process shown in the above method embodiments, and is not described herein again to avoid repetition.
In various embodiments of the present invention, it should be understood that the sequence numbers of the above-mentioned processes do not imply an inevitable order of execution, and the execution order of the processes should be determined by their functions and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.
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 units, if implemented as software functional units and sold or used as a stand-alone product, may be stored in a computer accessible memory. Based on such understanding, the technical solution of the present invention, which is a part of or contributes to the prior art in essence, or all or part of the technical solution, can be embodied in the form of a software product, which is stored in a memory and includes several requests for causing a computer device (which may be a personal computer, a server, a network device, or the like, and may specifically be a processor in the computer device) to execute part or all of the steps of the above-described method of each embodiment of the present invention.
It will be understood by those skilled in the art that all or part of the steps in the methods of the embodiments described above may be implemented by instructions associated with a program, which may be stored in a computer-readable storage medium, where the storage medium includes Read-Only Memory (ROM), Random Access Memory (RAM), Programmable Read-Only Memory (PROM), Erasable Programmable Read-Only Memory (EPROM), One-time Programmable Read-Only Memory (OTPROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), compact disc-Read-Only Memory (CD-ROM), or other Memory, magnetic disk, magnetic tape, or magnetic tape, Or any other medium which can be used to carry or store data and which can be read by a computer.
Claims (13)
1. A method for cell selection, comprising:
the lightweight terminal acquires a system message of at least one cell, wherein the system message comprises an access priority of each cell in the at least one cell for the lightweight terminal;
and the lightweight terminal selects an accessed target cell according to the access priority of each cell in the at least one cell aiming at the lightweight terminal, wherein the target cell is the cell with the highest access priority aiming at the lightweight terminal in the at least one cell.
2. The method of claim 1, wherein the acquiring, by the lightweight terminal, the system message of at least one cell comprises:
and the lightweight terminal is started up and carries out cell search to acquire the searched system message of at least one cell.
3. The method of claim 1, wherein the acquiring, by the lightweight terminal, the system message of at least one cell comprises:
when the lightweight terminal resides in a current cell, cell measurement is performed on the current cell and a neighboring cell of the current cell to obtain a system message of at least one searched cell, where the system message of the at least one cell includes the system message of the current cell.
4. The method according to any of claims 1 to 3, wherein the target cell is specifically a cell with the highest access priority for the lightweight terminal among the cells of the at least one cell that satisfy the cell selection criterion.
5. A method for cell selection, comprising:
broadcasting a system message, wherein the system message includes an access priority of each cell in at least one cell for the lightweight terminal, so that the lightweight terminal selects an accessed target cell according to the access priority of each cell in the at least one cell for the lightweight terminal, and the target cell is a cell with the highest access priority for the lightweight terminal in the at least one cell.
6. The method of claim 5, wherein the target cell is specifically a cell with the highest access priority for the lightweight terminal among the cells satisfying cell selection criteria in the at least one cell.
7. The method of claim 5 or 6, further comprising:
and adjusting the access priority of each cell aiming at the light-weight terminal according to the cell load state of each cell in the at least one cell.
8. The method of claim 7, wherein the adjusting the access priority of each cell for the lightweight terminal according to the cell load status of each cell of the at least one cell comprises:
and adjusting the access priority of each cell aiming at the lightweight terminal in a preset time period according to the cell load state of each cell in the at least one cell.
9. A lightweight terminal, comprising:
a receiving module, configured to obtain a system message of at least one cell, where the system message includes an access priority of each cell in the at least one cell for the lightweight terminal;
and the processing module is used for selecting an accessed target cell by the lightweight terminal according to the access priority of each cell in the at least one cell aiming at the lightweight terminal, wherein the target cell is the cell with the highest access priority aiming at the lightweight terminal in the at least one cell.
10. A network device, comprising:
a sending module, configured to broadcast a system message, where the system message includes an access priority of each cell in at least one cell for the lightweight terminal, so that the lightweight terminal selects a target cell to be accessed according to the access priority of each cell in the at least one cell for the lightweight terminal, and the target cell is a cell with a highest access priority for the lightweight terminal in the at least one cell.
11. A lightweight terminal, comprising: a memory storing executable program code;
a processor coupled with the memory;
the processor calls the executable program code stored in the memory to perform the method of any of claims 1 to 4.
12. A network device, comprising:
a memory storing executable program code;
a processor coupled with the memory;
the processor calls the executable program code stored in the memory to perform the method of any of claims 5 to 8.
13. A computer-readable storage medium, characterized in that it stores a computer program that causes a computer to perform the method of any of claims 1 to 4 or to perform the method of any of claims 5 to 8.
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