CN111988867B - Communication method with limited radio resource control and terminal equipment - Google Patents
Communication method with limited radio resource control and terminal equipment Download PDFInfo
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- CN111988867B CN111988867B CN202010894707.7A CN202010894707A CN111988867B CN 111988867 B CN111988867 B CN 111988867B CN 202010894707 A CN202010894707 A CN 202010894707A CN 111988867 B CN111988867 B CN 111988867B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/27—Transitions between radio resource control [RRC] states
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/25—Maintenance of established connections
Abstract
The embodiment of the invention discloses a communication method with limited radio resource control, terminal equipment and a computer readable storage medium, which are used for carrying out RRC connection on other cells if the RRC connection of a first cell is limited under a communication scene of new radio NR or communication priority higher than NR, so that the reliability of the RRC connection is ensured to a certain extent, and the user experience is improved. The method provided by the embodiment of the invention comprises the following steps: under the communication scene of new wireless NR or communication priority higher than NR, if the Radio Resource Control (RRC) connection of a first cell is limited, selecting a second cell to perform RRC connection, wherein the second cell is a neighbor cell of the first cell.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a communication method with limited radio resource control, a terminal device, and a computer-readable storage medium.
Background
In the terminal device, it is normally based on the 3GPP protocol specification, and when a uniform Access Control list (UAC Barring Info Set list) is explicitly configured in a System Information Block one (SIB 1) parameter of a cell System in which the terminal device resides, and there is corresponding restriction Information, such as an Access Identity (Access Identity) Set to 3-caller signaling (MO-signaling); or 4 caller Voice call (MO-Voice call); or 7 calling data (MO-data), the decision of access control is entered when initiating the corresponding service request.
Once the access is determined to be forbidden, the requests of the terminal, such as signaling, voice, call, data service, and the like, are limited within a certain time, even continuously for multiple times. In the above scenario limited by the network device, various services cannot be normally performed, resulting in poor user experience.
Disclosure of Invention
The embodiment of the invention provides a communication method with limited radio resource control, terminal equipment and a computer readable storage medium, which are used for carrying out RRC connection on other cells if the RRC connection of a first cell is limited in a communication scene with new radio NR or communication priority higher than NR, so that the reliability of the RRC connection is ensured to a certain extent, and the user experience is improved.
In view of the above, a first aspect of the present invention provides a radio resource control-limited communication method, which may include: under the communication scene of new wireless NR or communication priority higher than NR, if the Radio Resource Control (RRC) connection of a first cell is limited, selecting a second cell to perform RRC connection, wherein the second cell is a neighbor cell of the first cell.
A second aspect of the present invention provides a terminal device, which may include:
and the processing module is used for selecting a second cell to perform RRC connection if the RRC connection in the first cell is limited under the communication scene of new wireless NR or the communication priority higher than the NR, wherein the second cell is a neighbor cell of the first cell.
A third aspect of the embodiments of the present invention provides a terminal device, which may include:
a memory storing executable program code;
and a processor coupled to the memory;
the processor calls the executable program code stored in the memory for performing the method according to the first aspect of the embodiment of the present invention.
A fourth aspect of embodiments of the present invention provides a computer-readable storage medium, on which a computer program is stored, which, when executed by a processor, implements the method according to the first aspect of embodiments of the present invention.
A fifth aspect of the embodiments of the present invention discloses a computer program product, which, when running on a computer, causes the computer to execute the method of the first aspect of the embodiments of the present invention.
A sixth aspect of the embodiments of the present invention discloses an application publishing platform, where the application publishing platform is configured to publish a computer program product, where when the computer program product runs on a computer, the computer is enabled to execute the method according to the first aspect of the embodiments of the present invention.
According to the technical scheme, the embodiment of the invention has the following advantages:
in the embodiment of the present invention, in a communication scenario where a new wireless NR or a communication priority is higher than the NR, if RRC connection in radio resource control of a first cell is limited, a second cell is selected for RRC connection, where the second cell is a neighboring cell of the first cell. Namely, in a communication scene of a new wireless NR or a communication priority higher than NR, if the RRC connection in the first cell is limited, the RRC connection can be performed in other cells, so that the reliability of the RRC connection is ensured to a certain extent, and the user experience is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the embodiments and the drawings used in the description of the prior art, and obviously, the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained according to the drawings.
Fig. 1 is a system architecture diagram of a wireless communication system to which an embodiment of the present invention is applied;
fig. 2 is a schematic diagram of an embodiment of a communication method with limited rrc in an embodiment of the present invention;
fig. 3 is a schematic diagram of another embodiment of a communication method with limited radio resource control according to an embodiment of the present invention;
fig. 4 is a schematic diagram of another embodiment of a communication method with limited radio resource control according to an embodiment of the present invention;
FIG. 5 is a diagram of an embodiment of a terminal device in an embodiment of the present invention;
fig. 6 is a schematic diagram of another embodiment of the terminal device in the embodiment of the present invention.
Detailed Description
The embodiment of the invention provides a communication method with limited radio resource control, terminal equipment and a computer readable storage medium, which are used for carrying out RRC connection on other cells if the RRC connection of a first cell is limited in a communication scene with new radio NR or communication priority higher than NR, so that the reliability of the RRC connection is ensured to a certain extent, and the user experience is improved.
In order to make the technical solutions of the present invention better understood by those skilled in the art, the technical solutions in the embodiments of the present invention will be 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 embodiments. The embodiments based on the present invention should fall into the protection scope of the present invention.
The following is a brief description of the related art to which this application relates, as follows:
the 5G protocol specification has a stricter protocol specification about the terminal initiated service and access control than Long Term Evolution (LTE), and a clear definition is given to a service request event triggered by an upper layer of a 5G terminal and access control thereof in 4.5Unified access control in 24.501:
when a Non-Access stratum (NAS) detects one of the above events, the NAS needs to map the request type to one or more Access identities, and an Access class and lower layer performs an Access restriction check on the request according to the determined Access identity and Access type.
After a Primary Cell (PCell) of a Radio Resource Control (RRC) connection is changed, a User Equipment (UE) should defer an access restriction check until it obtains SIB1 from a target Cell.
As shown in tables 1 and 2 below, mapping tables of the RRC part are involved for access restriction.
TABLE 1
TABLE 2
The two tables are mapping tables of access limitation related RRC part, especially the last column, when UAC _ BarringInfoSet list exists in SIB1 of New Radio (NR) serving cell and relevant limitation information (for example, detailed UAC blocking factor (UAC-BarringFactor) exists for 3 MO-Signalling, 4 MO-Voice call and 7 Mo data), the terminal device enters access detection (access check).
The terminal device behavior is summarized as follows:
firstly, whether the random number is smaller than a set threshold (uac-BarringFactor) or not is tried to be calculated, and if the random number is larger than the threshold, access is limited for a certain time (T390, specifically, the random number is calculated by a formula); if the threshold cannot be passed continuously, the continuous access is limited.
Checking threshold details:
drawing a uniformly distributed random number rand within the range of rand <1 > to be more than or equal to 0;
if 'rand' is smaller than the value indicated by the uac BarringFactor contained in the "uac Barringparameter": the access attempt is deemed to be allowed;
else: consider the access attempt to be prohibited;
if the access attempt is deemed prohibited:
2 random numbers 'rand' uniformly distributed in the range of 0-1;
2> start the timer T390 for the access category using the uac BarringTime contained in the "AC barringparameter", the timer value is calculated as follows:
t390= (0.7 +0.6 × rand) × uac limit time.
In the prior art, from the perspective of a terminal device user, in the above scenario limited by a network device, various services cannot be normally developed. Particularly, in the case of voice service, if the user cannot dial the voice continuously due to the RRC limitation of the network, the user experience is poor. Such network scenes often appear in areas with more people and relatively limited resources, and are common pain points encountered by consumers.
Fig. 1 is a diagram illustrating a system architecture of a wireless communication system to which an embodiment of the present invention is applied. The system comprises network equipment and terminal equipment. The network device may further include an access network device and a core network device. I.e. the wireless communication system further comprises a plurality of core networks for communicating with the access network devices.
The access network device may be a long-term evolution (LTE) system, a New Radio (NR) system, or an evolved base station (evolved Node B) in an authorized assisted access long-term evolution (LAA-LTE) system, which may be an eNB or an 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), or a new generation base station (gNodeB).
A terminal device may be referred to as a User Equipment (UE), a Mobile Station (MS), a mobile terminal (mobile terminal), an intelligent terminal, and the like, and the terminal device may communicate with one or more core networks through a Radio Access Network (RAN). For example, the terminal equipment may be a mobile phone (or so-called "cellular" phone), a computer with a mobile terminal, etc., and the terminal equipment may also be a portable, pocket, hand-held, computer-included or car-mounted mobile device and terminal equipment in future NR networks, which exchange voice or data with the radio access network. Description of terminal device: in this application, the terminal device may further include a Relay, and the terminal device and the base station that can perform data communication may be regarded as the terminal device, which will be introduced in this application by the UE in a general sense.
The following further describes the technical solution of the present invention by way of an embodiment, as shown in fig. 2, which is a schematic diagram of an embodiment of a communication method with limited radio resource control in an embodiment of the present invention, and the method may include:
201. and under the communication scene of new wireless NR or communication priority higher than NR, if the Radio Resource Control (RRC) connection in the first cell is limited, selecting a second cell for RRC connection, wherein the second cell is a neighbor cell of the first cell.
It should be noted that, the terminal device obtains signal parameters of multiple cells and information of SIB1, obtains relevant parameters using an S (survivable) criterion from SIB1, determines types of the multiple cells according to the S criterion (whether the S criterion is satisfied), and calculates priorities of the multiple cells according to the signal parameters of the multiple cells and the types of the multiple cells to determine priorities of the first cell and the second cell. The signal parameters of the multiple cells may be parameters such as signal strength, signal frequency points, and the like. The types of the plurality of cells include a receivable cell (receivable cell), a suitable cell (capable cell), a barred cell (barred cell), and a reserved cell (reserved cell), wherein only the receivable cell and the suitable cell allow the terminal device to camp on the terminal device. The receivable cell provides the limited service for the terminal equipment, and only the terminal equipment can be supported to make an emergency call, and the emergency call is not always prioritized. The suitable cell provides conventional service for the terminal equipment, can meet the communication related service requirements of the terminal equipment such as signaling transmission, voice call, video call, data transmission and the like, and is a cell type with priority to reside. The S criterion may determine whether the type of the cell is a suitable cell, that is, if the parameter included in the SIB1 of the cell satisfies the criterion of the S criterion, the cell is a suitable cell.
Optionally, if the terminal device currently resides in a certain cell, determining the currently residing certain cell as the first cell; if the terminal equipment does not reside in any cell at present, the multiple cells can be sequentially arranged according to the sequence from strong signal strength to weak signal strength, whether the multiple cells are suitable cells or not is judged, the cell with the strongest signal strength in the suitable cells is determined to be the first cell, and the highest priority is given to the first cell. The number of the neighbor cells of the first cell may include a plurality of cells, and the cell having the highest priority among the plurality of neighbor cells is selected as the second cell.
Generally, when a terminal device needs to perform communication related services such as signaling transmission, voice call, video call, and data transmission, the terminal device sends an RRC connection request to a currently camped first cell, where the RRC connection request is used to establish an RRC connection with the first cell, and then an RRC layer allocates, to the terminal device, a resource corresponding to the RRC connection request.
In the embodiment of the present invention, in a communication scenario where a new wireless NR or a communication priority is higher than the NR, if a radio resource control RRC connection of a terminal device in a first cell is limited, the terminal device selects a second cell to perform RRC connection, where the second cell is a neighboring cell of the first cell.
Optionally, the terminal device decreases the priority of the first cell, and the priority of the second cell is higher than the priority of the first cell after the priority is decreased.
Optionally, the terminal device sets the first cell as a forbidden cell, and sets a duration of the first cell as the forbidden cell as a first preset limited duration.
It can be understood that, in the embodiments of the present invention, under a condition that a restriction condition of an original cell of a network, that is, a first cell, is fully considered, reselection may be attempted to another NR neighboring cell, and a software design may minimize a priority of the first cell and set the first cell as a barred cell (barred cell) within a certain time, and a terminal device may continue to reselect another next neighboring good cell using a measurement reselection standard of the 3 GPP.
Illustratively, in a new wireless NR or a communication scenario in which the communication priority is higher than the NR, the terminal device is in a restricted cell of the 5G NR, that is, there is UAC _ BarringInfoSet list in SIB1 of the cell, and there is related restriction information. For example, the Access Identity is set to 3, which indicates that the limited detection of the calling signaling (MO-signaling) is performed; the Access Identity is set to 4, which indicates that the limited detection of the calling Voice call (MO-Voice call) is carried out; the Access Identity is set to 7, indicating that limited detection of the calling data (Mo data) is performed. Then, when the Access Identity is set to 3, 4, or 7, the Access control decision is entered. An exemplary description of UAC _ BarringInfoSetlist is as follows:
among them, for example: the restriction MO-Signalling is as follows:
it can be understood that uac-Barring Factor = p05, indicating that the terminal device has only a 5% probability of passing through the access Barring check; uac-BarringTime = s256, indicating that the duration of the restriction is 256s; and the uac-barringforAccess identity =3, which indicates that the limited service is MO-signaling.
202. And if the RRC connection in the second cell is limited, reselecting the first cell for the RRC connection.
Optionally, if the RRC connection in the second cell is limited, reselecting the first cell for RRC connection may include: and if the RRC connection of the second cell is limited and the state of the limited RRC connection of the first cell lasts for a first preset limited time, reselecting the first cell to carry out the RRC connection.
Optionally, after the RRC connection of the second cell is limited, the priority of the second cell is reduced.
Optionally, after the radio resource control, RRC, connection of the first cell is limited, the method further includes: reducing the priority of the first cell, wherein the priority of the second cell is higher than the priority of the first cell after the priority is reduced; if the RRC connection in the second cell is limited, reselecting the first cell for RRC connection may include: and if the RRC connection in the second cell is limited, recovering the priority of the first cell, and reselecting the first cell to carry out the RRC connection.
Further optionally, if the RRC connection in the second cell is limited, recovering the priority of the first cell, and reselecting the first cell for RRC connection, may include: and if the RRC connection of the second cell is limited and the state of the limited RRC connection of the first cell lasts for a first preset limited time, recovering the priority of the first cell and reselecting the first cell for the RRC connection.
203. And under the condition that the limited times of the RRC connection of the first cell reach a first preset time, skipping the limited detection of the RRC connection and carrying out the RRC connection in the first cell.
It can be understood that, in the case that the neighboring cell does not satisfy the Suitable camping (able) cell, the original cell is retried after the preset limited duration, that is, the first cell performs the RRC connection, and the first cell is no longer set to the bar cell. For example, the first preset number of times may be two times, and then, in a case that the number of times of the RRC connection limitation of the first cell reaches two times, the limited detection (access barring) of the RRC connection is skipped, and the RRC connection is performed in the first cell, that is, the RRC connection is allowed to be established for signaling.
Wherein the suitable camping cell may be a cell in which the signal quality is greater than a preset signal quality threshold in the mobile cell, and/or the cell is not barred by the network, etc.
In the embodiment of the invention, under a communication scene of new wireless NR or communication priority higher than NR, if the RRC connection in the first cell is limited, the RRC connection can be carried out on other adjacent cells; if the RRC connection in other adjacent cells is limited, the first cell can be reselected for RRC connection; and skipping the limited detection of the RRC connection under the condition that the limited times of the RRC connection of the first cell reach a first preset time, and performing the RRC connection in the first cell. Therefore, the embodiment of the invention can intelligently select other adjacent cells or bypass access check, and ensure the reliability of RRC connection to a certain extent, thereby achieving the effect of quickly recovering services and improving user experience.
As shown in fig. 3, a schematic diagram of another embodiment of a communication method with limited radio resource control in an embodiment of the present invention may include:
301. and under the communication scene of new wireless NR or communication priority higher than NR, if the Radio Resource Control (RRC) connection in the first cell is limited, selecting a second cell for RRC connection, wherein the second cell is a neighbor cell of the first cell.
302. And if the RRC connection in the second cell is limited, reselecting the first cell for RRC connection.
303. And under the condition that the limited times of the RRC connection of the first cell reach a first preset time, skipping the limited detection of the RRC connection and carrying out the RRC connection in the first cell.
It is understood that, in the embodiment of the present invention, steps 301 to 303 are similar to steps 101 to 103 in the embodiment shown in fig. 2, and are not described herein again.
After the RRC connection is established, steps 304 and 305 may be performed if the terminal device is in an idle state, and step 306 may be performed if the terminal device is in a connected state.
304. After the RRC connection is established, if the terminal equipment is in an idle state and the voice connection in the first cell is limited, the second cell is selected to carry out the voice connection.
It can be understood that the signaling transmission performed by the terminal device in the cell is a basis for the terminal device to perform other communication related services such as voice call, video call, and data transmission.
Implementation mode 1: and after the RRC connection is established, if the terminal equipment is in an idle state and the voice connection in the first cell is limited, selecting the second cell to carry out voice connection.
Optionally, the terminal device decreases the priority of the first cell, and the priority of the second cell is higher than the priority of the first cell after the priority is decreased.
Optionally, the terminal device sets the first cell as a forbidden cell, and sets a duration of the first cell as the forbidden cell as a second preset limited duration.
Optionally, after the RRC connection is established, if the terminal device is in an idle state and the voice connection in the first cell is limited, skipping the limited detection of the voice connection, and performing the voice connection in the first cell.
Implementation mode 2: and after the RRC connection is established, if the terminal equipment is in an idle state and the video connection in the first cell is limited, selecting the second cell to carry out video connection.
Optionally, the terminal device decreases the priority of the first cell, and the priority of the second cell is higher than the priority of the first cell after the priority is decreased.
Optionally, the terminal device sets the first cell as a forbidden cell, and sets a duration of the first cell as the forbidden cell as a third preset limited duration.
Optionally, after the RRC connection is established, if the terminal device is in an idle state and the video connection in the first cell is limited, the limited detection of the voice connection is skipped, and the video connection is performed in the first cell.
For example: the limit MO-Voice call is as follows:
it can be understood that uac-Barring Factor = p05, indicating that the terminal device has only a 5% probability of passing through the access Barring check; uac-BarringTime = s64, indicating that the limited time length is 64s; the uac-BarringForAccessIdentity =4, which indicates that the limited service is MO-Voice call.
For example: the MO-Video call is limited as follows:
it can be understood that uac-Barring Factor = p05, indicating that the terminal device has only a 5% probability of passing through the access Barring check; uac-BarringTime = s64, indicating that the limited time length is 64s; and the uac-BarringForAccess identity =5, which indicates that the limited service is MO-Video call.
305. And if the voice connection in the second cell is limited, skipping the limited detection of the voice connection and performing the voice connection in the first cell.
Implementation mode 1:
optionally, if the voice connection in the second cell is limited, reselecting the first cell for voice connection may include: and if the voice connection of the second cell is limited and the voice connection of the first cell is in a limited state for a second preset limited time duration, reselecting the first cell for voice connection.
Optionally, after the voice connection of the first cell is limited, the method further includes: reducing the priority of the first cell, wherein the priority of the second cell is higher than the priority of the first cell after the priority is reduced; if the voice connection in the second cell is limited, reselecting the first cell for voice connection may include: and if the voice connection in the second cell is limited, recovering the priority of the first cell, and reselecting the first cell for voice connection.
Further optionally, if the voice connection in the second cell is limited, recovering the priority of the first cell, and reselecting the first cell for voice connection, may include: and if the voice connection of the second cell is limited and the state of the limited voice connection of the first cell lasts for a second preset limited time length, restoring the priority of the first cell and reselecting the first cell for voice connection.
Optionally, if the limited detection of the voice connection is skipped, after the voice connection in the first cell fails, a fallback operation is performed, and a voice connection with a communication priority lower than that in the NR scenario is established.
Implementation mode 2:
optionally, if the video connection in the second cell is limited, reselecting the first cell for video connection may include: and if the video connection of the second cell is limited and the video connection of the first cell continues for a third preset limited time, reselecting the first cell for video connection.
Optionally, after the video connection of the first cell is limited, the method further includes: reducing the priority of the first cell, wherein the priority of the second cell is higher than the priority of the first cell after the priority is reduced; if the video connection in the second cell is limited, reselecting the first cell for video connection may include: and if the video connection in the second cell is limited, recovering the priority of the first cell and reselecting the first cell for video connection.
Further optionally, if the video connection in the second cell is limited, recovering the priority of the first cell, and reselecting the first cell for video connection may include: and if the video connection of the second cell is limited and the video connection of the first cell continues for a third preset limited time, recovering the priority of the first cell and reselecting the first cell for video connection.
Optionally, if the limited detection of the video connection is skipped, after the video connection in the first cell fails, a fallback operation is performed, and a video connection or a voice connection with a communication priority lower than that in the NR scenario is established.
Optionally, after the voice connection or the video connection of the second cell is limited, the priority of the second cell is reduced.
306. After the RRC connection is established, if the terminal equipment is in a connected state and the voice connection in the first cell is limited, a fallback operation is executed, and the voice connection under the scene that the communication priority is lower than NR is established.
Implementation mode 1: after the RRC connection is established, if the terminal equipment is in a connected state and the voice connection in the first cell is limited, executing a fallback operation and establishing the voice connection under the situation that the communication priority is lower than the NR. For example: in a 5G scene, after RRC connection of the terminal equipment is established, if the terminal equipment is in a connected state and the voice connection in the first cell is limited, a fallback operation is executed, and the voice connection in a 4G scene is established.
Implementation mode 2: after the RRC connection is established, if the terminal equipment is in a connected state and the voice connection in the first cell is limited, executing a fallback operation, and establishing a video connection or a voice connection with a communication priority lower than that in the NR scene. For example: in a 5G scene, after RRC connection of terminal equipment is established, if the terminal equipment is in a connected state and video connection in the first cell is limited, a fallback operation is executed, and video connection or voice connection in a 4G scene is established.
It can be understood that, in the case that the neighboring cell does not satisfy the Suitable camping (capable) cell, the original cell is retried after the preset limited duration, that is, the first cell performs voice connection, and the first cell is no longer set as a barred cell. For example, the first preset number may be two times, and then, in a case that the number of times of the RRC connection limitation of the first cell reaches two times, skip the limitation detection (access barring check) of the voice connection, and perform the voice connection in the first cell.
Wherein the suitable camping cell may be a cell in which the signal quality is greater than a preset signal quality threshold in the mobile cell, and/or the cell is not forbidden by the network, etc.
Illustratively, the optimization is also done when the network device limits the VoNR, i.e. voice traffic in NR scenarios. The voice service is the most relevant to the user and is also an important target of optimization, and under the above setting conditions, the terminal equipment only has a 5% probability of dialing the VoNR telephone through the barring check. In the call scenario, further, the explanation may be separately performed according to different states of the terminal device, as follows:
a, a user dials a VoNR voice telephone in a 5G idle state, immediately tries to reselect a suboptimal NR 5G cell and dials the VoNR voice telephone after discovering the uac-Barring For Access Identity limitation; if no other adjacent cells meeting the conditions exist, the current 5G cell bypasses barring check to detect the dialing of the voice call. If the call cannot be successfully made, reporting the call to the NAS according to the protocol, and backing to VoLTE through the related protocol of the NAS, namely, dialing the voice call on the voice service in the LTE scene.
And B, the user dials the VoNR voice call in the 5G connection state, finds that the uac-Barring For Access Identity is bar, considers that the network equipment cannot judge that the terminal equipment has obvious cheating factors, does not forcibly reselect the second cell by the terminal equipment, and executes an Evolved Packet System (EPS) to fall back to the VoLTE cell to dial the voice call.
In the embodiment of the invention, when the mobile phone is limited to access the voice or video connection by the NR network or the network with higher communication priority, a proper cell can be intelligently selected or access check can be bypassed, so that the effect of quickly recovering the service is achieved, and the user experience under the scene that the NR network or the network with higher communication priority is limited is improved.
As shown in fig. 4, a schematic diagram of another embodiment of a communication method with limited radio resource control in an embodiment of the present invention may include:
401. and under the communication scene of new wireless NR or communication priority higher than NR, if the RRC connection of the first cell is limited, selecting a second cell for RRC connection, wherein the second cell is a neighbor cell of the first cell.
402. And if the RRC connection in the second cell is limited, reselecting the first cell for the RRC connection.
403. And under the condition that the limited times of the RRC connection of the first cell reach a first preset time, skipping the limited detection of the RRC connection and carrying out the RRC connection in the first cell.
It is understood that, in the embodiment of the present invention, steps 401 to 403 are similar to steps 101 to 103 in the embodiment shown in fig. 2, and are not described herein again.
404. And if the data connection in the first cell is limited, selecting a second cell for data connection.
Optionally, the terminal device decreases the priority of the first cell, and the priority of the second cell is higher than the priority of the first cell after the priority is decreased.
Optionally, the terminal device sets the first cell as a forbidden cell, and sets a duration of the first cell as the forbidden cell as a fourth preset limited duration.
For example: the constraint Mo data, as follows:
it can be understood that uac-Barring Factor = p05, indicating that the terminal device has only a 5% probability of passing through the access Barring check; uac-BarringTime = s256, indicating that the duration of the restriction is 256s; uac-BarringForAccessIdentity =7, indicating that the restricted traffic is Mo data.
405. And if the data connection in the second cell is limited, reselecting the first cell for data connection.
Optionally, if the data connection in the second cell is limited, reselecting the first cell for data connection may include: and if the data connection of the second cell is limited and the state of the limited data connection of the first cell lasts for a fourth preset limited time, reselecting the first cell for data connection.
Optionally, after the data connection of the first cell is limited, the method further includes: the priority of the first cell is reduced, and the priority of the second cell is higher than the priority of the first cell after the priority is reduced; if the data connection in the second cell is limited, reselecting the first cell for data connection may include: and if the data connection in the second cell is limited, recovering the priority of the first cell and reselecting the first cell for data connection.
Further optionally, if the data connection in the second cell is limited, recovering the priority of the first cell, and reselecting the first cell for data connection may include: and if the data connection of the second cell is limited and the state of the limited data connection of the first cell lasts for a fourth preset limited time, recovering the priority of the first cell and reselecting the first cell for data connection.
Optionally, after the data connection of the second cell is limited, the priority of the second cell is lowered.
406. And under the condition that the limited times of the data connection of the first cell reach a second preset time, skipping the limited detection of the data connection and performing the data connection in the first cell.
It can be understood that, in the case that the neighboring cell does not satisfy the Suitable camping (capable) cell, the original cell is retried after the preset limited duration, that is, the first cell performs data connection, and the first cell is no longer set as barred cell. For example, the second preset number may be two times, and then, in a case that the number of times of the RRC connection limitation of the first cell reaches two times, the limited detection (access barring) of the data connection is skipped, and the data connection is performed in the first cell.
Wherein the suitable camping cell may be a cell in which the signal quality is greater than a preset signal quality threshold in the mobile cell, and/or the cell is not forbidden by the network, etc.
It will be appreciated that the same optimization is done when the network device limits the VoNR and Data. The difference is that as a VoNR caller, a too slow successful dialing is worse in user experience, so the magnitude of the optimization is more relaxed; and if the real-time requirement of the data is lower, the optimization condition is stricter. For example, the fourth preset limited duration is greater than the second preset limited duration, or the fourth preset limited duration is greater than the third preset limited duration.
In the embodiment of the invention, when the terminal equipment is limited to access data connection by an NR (noise-and-noise) network or a network with higher communication priority, compared with the acceptable time limits of voice connection and video connection, the limited detection of the data connection is not directly skipped when the data connection is limited, but the second cell is tried to be reselected first, when the data connection of the second cell is still limited, the limited detection of the data connection is skipped under the condition that the limited number of the data connection of the first cell reaches a second preset number, and the data connection is carried out in the first cell. The data connection can be carried out in the cell with the optimal signal as far as possible, and the integrity of data transmission is ensured. The method can intelligently select a proper cell, and improves the user experience under the limited scene of the NR network or the network with higher communication priority.
As shown in fig. 5, which is a schematic diagram of an embodiment of a terminal device in an embodiment of the present invention, the terminal device may include:
a processing module 501, configured to select a second cell for RRC connection if RRC connection in a first cell is limited in a communication scenario where a new wireless NR or a communication priority is higher than the NR, where the second cell is a neighboring cell of the first cell.
Optionally, the processing module 501 is further configured to reselect the first cell to perform RRC connection if the RRC connection in the second cell is limited; and under the condition that the limited times of the RRC connection of the first cell reach a first preset time, skipping the limited detection of the RRC connection, and performing the RRC connection in the first cell.
Optionally, the processing module 501 is specifically configured to reselect the first cell to perform RRC connection if the RRC connection of the second cell is limited and the state of the limited RRC connection of the first cell continues to preset a limited duration.
Optionally, the processing module 501 is further configured to reduce the priority of the first cell, where the priority of the second cell is higher than the priority of the first cell after the priority is reduced;
the processing module 501 is specifically configured to, if the RRC connection in the second cell is limited, restore the priority of the first cell and reselect the first cell for RRC connection.
Optionally, the processing module 501 is specifically configured to, if the RRC connection of the second cell is limited and the state of the limited RRC connection of the first cell continues to preset a limited duration, restore the priority of the first cell and reselect the first cell for RRC connection.
Optionally, the processing module 501 is further configured to, after the RRC connection is established, select the second cell for voice connection if the terminal device is in an idle state and the voice connection in the first cell is limited; and if the voice connection in the second cell is limited, skipping the limited detection of the voice connection and performing the voice connection in the first cell.
Optionally, the processing module 501 is further configured to, after the RRC connection is established, if the terminal device is in a connected state and the voice connection in the first cell is limited, execute a fallback operation to establish the voice connection with a communication priority lower than that in the NR scenario.
Optionally, the processing module 501 is further configured to, after the RRC connection is established, select the second cell for video connection if the terminal device is in an idle state and the video connection in the first cell is limited; and if the video connection in the second cell is limited, skipping the limited detection of the video connection, and performing video connection or voice connection in the first cell.
Optionally, the processing module 501 is further configured to, after the RRC connection is established, if the terminal device is in a connected state and the voice connection in the first cell is limited, execute a fallback operation to establish a video connection or a voice connection with a communication priority lower than that in the NR scenario.
Optionally, the processing module 501 is further configured to select a second cell for data connection if data connection in the first cell is limited; if the data connection in the second cell is limited, reselecting the first cell for data connection; and under the condition that the limited times of the data connection of the first cell reach a second preset time, skipping the limited detection of the data connection and performing the data connection in the first cell.
As shown in fig. 6, which is a schematic diagram of another embodiment of the terminal device in the embodiment of the present invention, the method may include:
fig. 6 is a block diagram illustrating a partial structure of a mobile phone related to a terminal device provided in an embodiment of the present invention. Referring to fig. 6, the handset includes: radio Frequency (RF) circuit 610, memory 620, input unit 630, display unit 640, sensor 650, audio circuit 660, wireless fidelity (WiFi) module 670, processor 680, and power supply 690. The RF circuitry 610 may include, among other things, a receiver 614 and a transmitter 612. Those skilled in the art will appreciate that the handset configuration shown in fig. 6 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 following describes each component of the mobile phone in detail with reference to fig. 6:
the RF circuit 610 may be used for receiving and transmitting signals during information transmission and reception or during a call, and in particular, receives downlink information of a base station and then processes the received downlink information to the processor 680; in addition, data for designing uplink is transmitted to the base station. In general, RF circuit 610 includes, but is not limited to, an antenna, at least one Amplifier, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like. In addition, the RF circuitry 610 may also communicate with networks and other devices via wireless communications. The wireless communication may use any communication standard or protocol, including but not limited to Global System for Mobile communication (GSM), general Packet Radio Service (GPRS), code Division Multiple Access (CDMA), wideband Code Division Multiple Access (WCDMA), long Term Evolution (LTE), email, short Messaging Service (SMS), etc.
The memory 620 may be used to store software programs and modules, and the processor 680 may execute various functional applications of the mobile phone and data processing by operating the software programs and modules stored in the memory 620. The memory 620 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 620 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 630 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 630 may include a touch panel 631 and other input devices 632. The touch panel 631, also referred to as a touch screen, can collect touch operations of a user (e.g., operations of the user on the touch panel 631 or near the touch panel 631 by using any suitable object or accessory such as a finger, a stylus, etc.) thereon or nearby, and drive the corresponding connection device according to a preset program. Alternatively, the touch panel 631 may include two parts of 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 680, and can receive and execute commands sent by the processor 680. In addition, the touch panel 631 may be implemented using various types, such as resistive, capacitive, infrared, and surface acoustic wave. The input unit 630 may include other input devices 632 in addition to the touch panel 631. In particular, other input devices 632 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like.
The display unit 640 may be used to display information input by a user or information provided to the user and various menus of the mobile phone. The Display unit 640 may include a Display panel 641, and optionally, the Display panel 641 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 631 can cover the display panel 641, and when the touch panel 631 detects a touch operation thereon or nearby, the touch panel is transmitted to the processor 680 to determine the type of the touch event, and then the processor 680 provides a corresponding visual output on the display panel 641 according to the type of the touch event. Although in fig. 6, the touch panel 631 and the display panel 641 are two independent components to implement the input and output functions of the mobile phone, in some embodiments, the touch panel 631 and the display panel 641 may be integrated to implement the input and output functions of the mobile phone.
The handset may also include at least one sensor 650, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor that adjusts the brightness of the display panel 641 according to the brightness of ambient light, and a proximity sensor that turns off the display panel 641 and/or the backlight when the mobile phone is moved 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 gesture of the mobile phone (such as horizontal and vertical screen switching, related games, magnetometer gesture 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 mobile phone can help a user to receive and send e-mails, browse webpages, access streaming media and the like through the WiFi module 670, and provides wireless broadband Internet access for the user. Although fig. 6 shows the WiFi module 670, 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 680 is a control center of the mobile phone, and connects various parts of the entire mobile phone by using various interfaces and lines, and performs various functions of the mobile phone and processes data by operating or executing software programs and/or modules stored in the memory 620 and calling data stored in the memory 620, thereby performing overall monitoring of the mobile phone. Optionally, processor 680 may include one or more processing units; preferably, the processor 680 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 into processor 680.
The handset also includes a power supply 690 (e.g., a battery) for powering the various components, which may preferably be logically coupled to the processor 680 via a power management system, such that the power management system may manage charging, discharging, and power consumption.
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 processor 680 included in the terminal device further has the following functions:
under the communication scene of new wireless NR or communication priority higher than NR, if the Radio Resource Control (RRC) connection of a first cell is limited, selecting a second cell to perform RRC connection, wherein the second cell is a neighbor cell of the first cell.
Optionally, the processor 680 further has the following functions:
if the RRC connection in the second cell is limited, reselecting the first cell for RRC connection;
and skipping the limited detection of the RRC connection under the condition that the limited times of the RRC connection of the first cell reach a first preset time, and performing the RRC connection in the first cell.
Optionally, the processor 680 further has the following functions:
and if the RRC connection of the second cell is limited and the state of the limited RRC connection of the first cell lasts for a preset limited time, reselecting the first cell to carry out the RRC connection.
Optionally, the processor 680 further has the following functions: the priority of the first cell is reduced, and the priority of the second cell is higher than the priority of the first cell after the priority is reduced;
and if the RRC connection in the second cell is limited, recovering the priority of the first cell and reselecting the first cell for the RRC connection.
Optionally, the processor 680 further has the following functions:
and if the RRC connection of the second cell is limited and the state of the limited RRC connection of the first cell lasts for a preset limited time, recovering the priority of the first cell and reselecting the first cell to carry out the RRC connection.
Optionally, the processor 680 further has the following functions:
after the RRC connection is established, if the terminal equipment is in an idle state and the voice connection in the first cell is limited, selecting the second cell to carry out voice connection;
and if the voice connection in the second cell is limited, skipping the limited detection of the voice connection and performing the voice connection in the first cell.
Optionally, the processor 680 further has the following functions:
after the RRC connection is established, if the terminal equipment is in a connected state and the voice connection in the first cell is limited, executing a fallback operation and establishing the voice connection under the situation that the communication priority is lower than the NR.
Optionally, the processor 680 further has the following functions:
after the RRC connection is established, if the terminal equipment is in an idle state and the video connection in the first cell is limited, selecting the second cell for video connection;
and if the video connection in the second cell is limited, skipping the limited detection of the video connection, and performing video connection or voice connection in the first cell.
Optionally, the processor 680 further has the following functions:
after the RRC connection is established, if the terminal equipment is in a connected state and the voice connection in the first cell is limited, executing a fallback operation, and establishing a video connection or a voice connection with a communication priority lower than that in the NR scene.
Optionally, the processor 680 further has the following functions:
if the data connection in the first cell is limited, selecting a second cell for data connection;
if the data connection in the second cell is limited, reselecting the first cell for data connection;
and under the condition that the limited times of the data connection of the first cell reach a second preset time, skipping the limited detection of the data connection and performing the data connection in the first cell.
In the above embodiments, all or part of the implementation may be realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product.
The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the invention to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that a computer can store or a data storage device, such as a server, a data center, etc., that includes one or more available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid State Disk (SSD)), among others.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments provided in the present invention, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) 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 should 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 (8)
1. A method of radio resource control limited communication, comprising:
under a communication scene that a new wireless NR or a communication priority is higher than the NR, if the Radio Resource Control (RRC) connection in a first cell is limited, selecting a second cell to perform RRC connection, wherein the second cell is a neighbor cell of the first cell;
the system information I of the first cell has a unified access control list and relevant limiting information, wherein the relevant limiting information comprises at least one of a unified access control UAC blocking factor, a UAC limiting duration and a limiting service identifier;
after the RRC connection is established, if the terminal equipment is in an idle state and the voice connection in the first cell is limited, selecting the second cell to carry out voice connection; if the voice connection in the second cell is limited, skipping the limited detection of the voice connection in the first cell, and performing the voice connection in the first cell; if the terminal equipment is in a connected state and the voice connection in the first cell is limited, executing a fallback operation and establishing the voice connection with the communication priority lower than that in the NR scene;
after the RRC connection is established, if the terminal equipment is in an idle state and the video connection in the first cell is limited, selecting the second cell for video connection; if the video connection in the second cell is limited, skipping the limited detection of the video connection in the first cell, and performing video connection or voice connection in the first cell; if the terminal equipment is in a connected state and the voice connection in the first cell is limited, executing a fallback operation and establishing a video connection or a voice connection with a communication priority lower than that in the NR scene;
if the data connection in the first cell is limited, selecting a second cell for data connection; if the data connection in the second cell is limited, reselecting the first cell for data connection; and under the condition that the limited times of the data connection of the first cell reach a second preset time, skipping the limited detection of the data connection and performing the data connection in the first cell.
2. The method of claim 1, further comprising:
if the RRC connection in the second cell is limited, reselecting the first cell to carry out the RRC connection;
and under the condition that the limited times of the RRC connection of the first cell reach a first preset time, skipping the limited detection of the RRC connection, and performing the RRC connection in the first cell.
3. The method of claim 2, wherein the reselecting the first cell for the RRC connection if the RRC connection in the second cell is restricted comprises:
and if the RRC connection of the second cell is limited and the state of the limited RRC connection of the first cell continues to preset limited duration, reselecting the first cell for RRC connection.
4. The method according to any of claims 1-3, wherein after the radio resource control, RRC, connection of the first cell is restricted, the method further comprises:
reducing the priority of the first cell, wherein the priority of the second cell is higher than the priority of the first cell after the priority is reduced;
if the RRC connection in the second cell is limited, reselecting the first cell for RRC connection, including:
and if the RRC connection in the second cell is limited, recovering the priority of the first cell and reselecting the first cell for the RRC connection.
5. The method of claim 4, wherein if the RRC connection in the second cell is limited, restoring the priority of the first cell and reselecting the first cell for the RRC connection comprises:
and if the RRC connection of the second cell is limited and the state of the limited RRC connection of the first cell lasts for a preset limited time, recovering the priority of the first cell and reselecting the first cell to carry out the RRC connection.
6. A terminal device, comprising:
a processing module, configured to select a second cell for RRC connection if RRC connection in a first cell is limited in a communication scenario where a new wireless NR or a communication priority is higher than the NR, where the second cell is a neighboring cell of the first cell;
the processing module is further configured to select the second cell for voice connection if the terminal device is in an idle state and the voice connection in the first cell is limited after the RRC connection is established; if the voice connection in the second cell is limited, skipping the limited detection of the voice connection in the first cell, and performing the voice connection in the first cell; if the terminal equipment is in a connected state and the voice connection in the first cell is limited, executing a fallback operation and establishing the voice connection with the communication priority lower than that in the NR scene;
the processing module is further configured to select the second cell for video connection if the terminal device is in an idle state and the video connection in the first cell is limited after the RRC connection is established; if the video connection in the second cell is limited, skipping the limited detection of the video connection in the first cell, and performing video connection or voice connection in the first cell; if the terminal equipment is in a connected state and the voice connection in the first cell is limited, executing a fallback operation and establishing a video connection or a voice connection with a communication priority lower than that in the NR scene;
the processing module is further configured to select a second cell for data connection if data connection in the first cell is limited; if the data connection in the second cell is limited, reselecting the first cell for data connection; skipping the limited detection of the data connection under the condition that the limited times of the data connection of the first cell reach a second preset time, and performing the data connection in the first cell;
the system information I of the first cell has a unified access control list and relevant limiting information, wherein the relevant limiting information comprises at least one of a unified access control UAC blocking factor, a UAC limiting duration and a limiting service identifier.
7. A terminal device, comprising:
a memory storing executable program code;
and a processor coupled to the memory;
the processor calls the executable program code stored in the memory for performing the method of any of claims 1-5.
8. A computer-readable storage medium comprising instructions that, when executed on a computer, cause the computer to perform the method of any one of claims 1-5.
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