CN111432502B - Random access method, base station and terminal equipment - Google Patents

Random access method, base station and terminal equipment Download PDF

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Publication number
CN111432502B
CN111432502B CN201910017998.9A CN201910017998A CN111432502B CN 111432502 B CN111432502 B CN 111432502B CN 201910017998 A CN201910017998 A CN 201910017998A CN 111432502 B CN111432502 B CN 111432502B
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sul carrier
information
random access
terminal equipment
terminal device
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CN111432502A (en
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黄伟
徐绍君
王亮
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Chengdu TD Tech Ltd
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Chengdu TD Tech Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/30—Connection release
    • H04W76/38—Connection release triggered by timers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the invention provides a random access method, a base station and terminal equipment. The method comprises the following steps: receiving a random access request initiated by terminal equipment on a frequency division duplex FDD carrier; and if the base station detects that the inactivity timer of the terminal equipment is overtime, sending a wireless resource release message to the terminal equipment, wherein the wireless resource release message comprises supplementary uplink SUL carrier information so that the terminal equipment initiates random access according to the SUL carrier information. The method of the embodiment of the invention enables the terminal equipment to directly initiate the random access on the SUL carrier, improves the uplink coverage capability and improves the user experience.

Description

Random access method, base station and terminal equipment
Technical Field
The embodiment of the invention relates to the technical field of wireless communication, in particular to a random access method, a base station and terminal equipment.
Background
With the development of wireless communication technology, mobile communication networks gradually evolve to 5G, New Radio (NR) networks. In NR networks, Supplementary UpLink (SUL) carriers in the low frequency band are introduced to enhance UpLink coverage. Generally, the SUL carrier does not correspond to a cell alone, but is paired with a downlink carrier, and belongs to a cell corresponding to the downlink carrier. When a cell is configured with SUL, the cell will have two uplink carriers, one is a SUL carrier and the other is a non-SUL carrier.
In a Frequency Division Duplex (FDD) carrier and SUL carrier networking scenario, a terminal device usually initiates random access on an FDD carrier. When the data transmission amount is large and the channel quality of the FDD carrier is poor, the switching to the SUL carrier is performed.
However, the uplink coverage capability of FDD carriers is weaker than that of SUL carriers. The existing random access method causes the uplink coverage capability to be poor, and further causes the user experience to be poor when the terminal equipment performs uplink service access.
Disclosure of Invention
The embodiment of the invention provides a random access method, a base station and terminal equipment, which are used for solving the problem of poor uplink coverage capability.
In a first aspect, an embodiment of the present invention provides a random access method, applied to a base station, including:
receiving a random access request initiated by terminal equipment on a frequency division duplex FDD carrier;
and if the base station detects that the inactivity timer of the terminal equipment is overtime, sending a wireless resource release message to the terminal equipment, wherein the wireless resource release message comprises supplementary uplink SUL carrier information so that the terminal equipment initiates random access according to the SUL carrier information.
In one possible implementation, the SUL carrier information includes: the SUL carrier frequency point information, the priority information of the SUL carrier frequency points and the configuration information of the SUL cell corresponding to the SUL carrier frequency points.
In a possible implementation manner, before sending the radio resource release message to the terminal device, the method further includes:
and judging whether the terminal equipment supports the SUL carrier.
In a second aspect, an embodiment of the present invention provides a random access method, applied to a terminal device, including:
receiving a wireless resource release message sent by a base station, wherein the wireless resource release message comprises supplementary uplink SUL carrier information;
and the terminal equipment initiates random access according to the SUL carrier information.
In one possible implementation, the SUL carrier information includes: the SUL carrier frequency point information, the priority information of the SUL carrier frequency points and the configuration information of the SUL cell corresponding to the SUL carrier frequency points.
In a possible implementation manner, the initiating, by the terminal device, a random access according to the SUL carrier information includes:
the terminal equipment acquires the SUL carrier frequency point with the highest priority according to the SUL carrier frequency point information and the priority information of the SUL carrier frequency point;
and the terminal equipment initiates random access on the SUL carrier frequency point with the highest priority.
In a third aspect, an embodiment of the present invention provides a base station, including:
a receiving module, configured to receive a random access request initiated by a terminal device on a frequency division duplex FDD carrier;
and the sending module is used for sending a wireless resource release message to the terminal equipment if the inactivity timer of the terminal equipment is detected to be overtime, wherein the wireless resource release message comprises supplementary uplink SUL carrier information so that the terminal equipment initiates random access according to the SUL carrier information.
In a fourth aspect, an embodiment of the present invention provides a terminal device, including:
a receiving module, configured to receive a radio resource release message sent by a base station, where the radio resource release message includes supplementary uplink SUL carrier information;
and the processing module is used for initiating random access according to the SUL carrier information.
In a fifth aspect, an embodiment of the present invention provides a base station, including:
a memory;
a processor; and
a computer program;
wherein the computer program is stored in the memory and configured to be executed by the processor to implement the random access method as defined in any one of the first aspect.
In a sixth aspect, an embodiment of the present invention provides a terminal device, including:
a memory;
a processor; and
a computer program;
wherein the computer program is stored in the memory and configured to be executed by the processor to implement the random access method as claimed in any one of the second aspect.
In a seventh aspect, an embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement the random access method according to any one of the first aspect or the random access method according to any one of the second aspect.
According to the random access method, the base station and the terminal equipment provided by the embodiment of the invention, the random access request initiated by the terminal equipment on the frequency division duplex FDD carrier wave is received, if the base station detects that the inactive timer of the terminal equipment is overtime, the base station sends the wireless resource release message to the terminal equipment, and the wireless resource release message comprises the supplemental uplink SUL carrier wave information, so that the terminal equipment initiates random access according to the SUL carrier wave information, the terminal equipment can directly initiate random access on the SUL carrier wave, the SUL carrier wave resource is fully utilized, the uplink coverage capability is improved, and the user experience is improved. The SUL carrier information is sent to the terminal equipment through the wireless resource release message, the compatibility is high, and the base station sends the wireless resource release message including the SUL carrier information to the terminal equipment only under the condition that the terminal equipment initiates random access on the FDD carrier, so that the utilization rate of air interface resources is improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a flowchart of a random access method according to an embodiment of the present invention;
fig. 2 is a flowchart of another embodiment of a random access method provided in the present invention;
fig. 3 is a flowchart of another embodiment of a random access method provided by the present invention;
fig. 4 is a signaling flowchart of a random access method according to another 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 an embodiment of a terminal device provided in the present invention;
fig. 7 is a schematic structural diagram of a base station according to another embodiment of the present invention;
fig. 8 is a schematic structural diagram of another embodiment of the terminal device provided by the present invention.
With the above figures, certain embodiments of the invention have been illustrated and described in more detail below. The drawings and written description are not intended to limit the scope of the inventive concepts in any manner, but rather to illustrate the inventive concepts to those skilled in the art by reference to specific embodiments.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
The terms "comprising" and "having," and any variations thereof, in the description and claims of this invention are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
The terms "first" and "second" in the present application are used for identification purposes only and are not to be construed as indicating or implying a sequential relationship, relative importance, or implicitly indicating the number of technical features indicated. "plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
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 application. 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. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
It should be noted that the random access method provided by the embodiment of the present invention may be used in the case of FDD carrier and SUL carrier networking. The actual interference situation of the FDD carrier and the SUL carrier is different, so the coverage capability of the two carriers is different. In the prior art, a terminal device first initiates random access on an FDD carrier, and then determines whether to switch to an SUL carrier according to a data transmission amount and channel quality of the FDD carrier, and the SUL carrier resources are not fully utilized, which results in poor uplink coverage capability and poor user experience when the terminal device performs uplink service access. In order to solve the above problem, an embodiment of the present invention provides a random access method, which will be described below by using a specific embodiment.
Fig. 1 is a flowchart of a random access method according to an embodiment of the present invention. The method provided by this embodiment may be applied to a base station, as shown in fig. 1, the method provided by this embodiment may include:
s101, receiving a random access request initiated by terminal equipment on a frequency division duplex FDD carrier.
In this embodiment, after the terminal device is powered on, if there is a service requirement, a random access request is initiated on an FDD carrier, so as to access a corresponding base station.
In this embodiment, after receiving a random access request initiated by a terminal device on an FDD carrier, if the terminal device is allowed to access, a base station allocates a corresponding resource to the terminal device, so that the terminal device can perform communication smoothly.
And S102, if the base station detects that the inactivity timer of the terminal equipment is overtime, sending a wireless resource release message to the terminal equipment, wherein the wireless resource release message comprises supplementary uplink SUL carrier information, so that the terminal equipment initiates random access according to the SUL carrier information.
In order to improve the utilization rate of air interface resources and reduce the power consumption of the terminal device, when there is no data transmission between the terminal device and the base station in uplink and downlink, the radio link resources need to be released. In this embodiment, the base station determines whether to send a radio resource Release message to the terminal device by detecting whether an inactivity timer of the terminal device is overtime, for example, the radio resource Release message may be an RRC Release message. Optionally, after the base station detects that the terminal device has no data to receive or transmit, an inactivity timer of the terminal device is started. And when the inactivity timer of the terminal equipment is overtime, sending a wireless resource release message to the terminal equipment.
Optionally, in this embodiment, the time length value of the inactivity timer of the terminal device may be determined according to configuration information sent by the terminal device. For example, the base station may determine the duration value of the inactivity timer of the terminal device according to the duration value of the RRC inactivity timer carried in the MAC-MainConfig-NB signaling sent by the terminal device and/or the type of the terminal device. Wherein, the time length value of the RRC inactivity timer can be carried in the RRCinagetizer-timeout-R13 signaling parameter in the MAC-MainConfig-NB signaling. The time length value of the inactivity timer of the terminal equipment is determined according to the configuration information sent by the terminal equipment, and a reasonable time length value of the RRC inactivity timer can be determined for each terminal, so that normal transmission of data can be ensured, and the power consumption of the terminal can be reduced to a certain extent.
In this embodiment, when the terminal device initiates random access on the FDD carrier, the radio resource release message sent by the base station to the terminal device may include supplementary uplink SUL carrier information, so that after receiving the radio resource release message, the terminal device determines the SUL carrier information according to the radio resource release message, and then initiates random access according to the SUL carrier information, thereby implementing that the terminal device directly initiates random access on the SUL carrier. It can be understood that, if the terminal device initiates random access on the SUL carrier, the terminal device already knows the SUL carrier information, and in this case, the base station may not include the SUL carrier information in the radio resource release message sent to the terminal device, so as to save air interface resources and improve the utilization rate of the air interface resources.
In the embodiment, the SUL carrier information is sent to the terminal equipment through the wireless resource release message, no new message type needs to be additionally added, and the SUL carrier information can be compatible with the existing communication system to the maximum extent.
In the random access method provided by this embodiment, a random access request initiated by a terminal device on a frequency division duplex FDD carrier is received, and if a base station detects that an inactive timer of the terminal device is overtime, a radio resource release message is sent to the terminal device, where the radio resource release message includes supplementary uplink SUL carrier information, so that the terminal device initiates random access according to the SUL carrier information, and thus the terminal device can directly initiate random access on the SUL carrier, the SUL carrier resources are fully utilized, the uplink coverage capability is improved, and user experience is improved. The SUL carrier information is sent to the terminal equipment through the wireless resource release message, the compatibility is high, and the base station sends the wireless resource release message including the SUL carrier information to the terminal equipment only under the condition that the terminal equipment initiates random access on the FDD carrier, so that the utilization rate of air interface resources is improved.
Optionally, the SUL carrier information may include: the SUL carrier frequency point information, the priority information of the SUL carrier frequency points and the configuration information of the SUL cell corresponding to the SUL carrier frequency points. The SUL carrier frequency point information may include a frequency point which can be used when the terminal device initiates random access from the SUL carrier; the priority information of the SUL carrier frequency points indicates the use priority of each SUL carrier frequency point, and the use priority may include high, medium and low, and may also be represented by priority values; and the configuration information of the SUL cell corresponding to the SUL carrier frequency point indicates the configuration information of the SUL cell corresponding to each SUL carrier frequency point.
In some embodiments, to further improve utilization rate of air interface resources, in the random access method provided in this embodiment, before the base station sends the radio resource release message to the terminal device, the method further includes: and judging whether the terminal equipment supports the SUL carrier. If the terminal equipment supports the SUL carrier, sending a wireless resource release message comprising SUL carrier information to the terminal equipment; if the terminal device does not support the SUL carrier, the base station may send a radio resource release message to the terminal device according to the implementation manner in the prior art. Whether the terminal device supports the SUL carrier or not can be informed to the registered base station when the terminal device registers information to the base station.
Fig. 2 is a flowchart of a random access method according to another embodiment of the present invention. The method provided by this embodiment may be applied to a base station, as shown in fig. 2, the method provided by this embodiment may include:
s201, receiving a random access request initiated by a terminal device on a frequency division duplex FDD carrier.
S202, the base station communicates with the terminal equipment.
In this embodiment, after receiving a random access request initiated by a terminal device on an FDD carrier, if the terminal device is allowed to access, a base station allocates a corresponding Resource to the terminal device, and the terminal device enters an RRC connection state by a Radio Resource Control (RRC) idle state, so that the base station communicates with the terminal device.
S203, judging whether the inactivity timer of the terminal equipment is overtime. If yes, continuing to execute S204; if not, S202 is executed.
In this embodiment, when the base station detects that there is no data transmission in both uplink and downlink of the terminal device, the inactivity timer of the terminal device is started.
S204, judging whether the terminal equipment supports the SUL carrier. If yes, continuing to execute S205; and if not, sending the RRC Release message to the terminal equipment by adopting the prior art.
In this embodiment, the base station may determine whether the terminal device supports the SUL carrier according to a capability parameter of the terminal device in the registration information of the base station. By judging the SUL supporting capability of the terminal equipment, the problem of air interface resource waste caused by sending SUL carrier information to the terminal equipment which does not support SUL carriers can be avoided.
S205, sending a wireless resource release message including the supplementary uplink SUL carrier information to the terminal equipment so that the terminal equipment initiates random access according to the SUL carrier information.
Based on the foregoing embodiment, the random access method provided in this embodiment sends a radio resource release message including information of an uplink SUL carrier to a terminal device that supports the SUL carrier and has an inactive timer that is overtime by sending a random access request initiated on an FDD carrier, so that the terminal device initiates random access according to the SUL carrier information, and thus the terminal device can directly initiate random access on the SUL carrier, which not only makes full use of SUL carrier resources, improves uplink coverage capability, and improves user experience, but also has high compatibility and high utilization rate of air interface resources.
Fig. 3 is a flowchart of another embodiment of a random access method provided by the present invention. The method provided by this embodiment may be applied to a terminal device, as shown in fig. 3, and the method provided by this embodiment may include:
s301, receiving a wireless resource release message sent by the base station, wherein the wireless resource release message comprises supplementary uplink SUL carrier information.
In this embodiment, after receiving a radio resource release message including SUL carrier information sent by a base station, a terminal device may determine corresponding SUL carrier information according to the radio resource release message.
Optionally, the SUL carrier information may include: the SUL carrier frequency point information, the priority information of the SUL carrier frequency points and the configuration information of the SUL cell corresponding to the SUL carrier frequency points.
And S302, the terminal equipment initiates random access according to the SUL carrier information.
In this embodiment, after acquiring the SUL carrier information, the terminal device may directly initiate random access on the SUL carrier according to the SUL carrier information when a service requirement is subsequently met.
According to the random access method provided by the embodiment, the wireless resource release message which is sent by the base station and comprises the information of the supplementary uplink SUL carrier is received, and the random access is initiated according to the information of the SUL carrier, so that the terminal equipment directly initiates the random access on the SUL carrier, the SUL carrier resources are fully utilized, the uplink coverage capability is improved, and the user experience is improved.
In some embodiments, one implementation manner of the terminal device initiating the random access according to the SUL carrier information may be: the terminal equipment acquires the SUL carrier frequency point with the highest priority according to the SUL carrier frequency point information and the priority information of the SUL carrier frequency point; and the terminal equipment initiates random access on the SUL carrier frequency point with the highest priority.
Optionally, the SUL carrier frequency points may be arranged according to the priority information of the SUL carrier frequency points and the priority information of the SUL carrier frequency points from high to low. The terminal equipment firstly initiates random access on the SUL carrier frequency point with the highest priority, if the access fails, the next SUL carrier frequency point can be selected from high to low according to the priority to initiate random access, and so on.
Fig. 4 is a signaling flowchart of a random access method according to another embodiment of the present invention. As shown in fig. 4, the method provided by this embodiment may include:
s401, the terminal equipment initiates a random access request on the FDD carrier.
S402, the base station communicates with the terminal equipment.
S403, the base station judges whether the inactivity timer of the terminal equipment is overtime. If yes, continuing to execute S404; otherwise, execution continues with S402.
S404, the base station judges whether the terminal equipment supports the SUL carrier. If yes, continuing to execute S405; otherwise, a radio resource release message is sent to the terminal device according to the prior art.
S405, the base station sends a wireless resource release message including SUL carrier information to the terminal equipment.
S406, the terminal equipment initiates a random access request on the SUL carrier.
It should be noted that, after receiving the radio resource release message including the SUL carrier information sent by the base station, the terminal device may directly initiate random access on the SUL carrier when there is a subsequent service requirement. In addition, for the case that the terminal device initiates random access on the SUL carrier, the base station may not need to send the SUL carrier information to the terminal device any more.
Fig. 5 shows a base station, which is only illustrated in fig. 5, and the embodiment of the present invention does not show that the present invention is limited thereto. Fig. 5 is a schematic structural diagram of a base station according to an embodiment of the present invention. As shown in fig. 5, the base station 50 provided in the present embodiment includes: a receiving module 501 and a sending module 502.
A receiving module 501, configured to receive a random access request initiated by a terminal device on a frequency division duplex FDD carrier;
a sending module 502, configured to send a radio resource release message to the terminal device if it is detected that the inactivity timer of the terminal device is overtime, where the radio resource release message includes supplemental uplink SUL carrier information, so that the terminal device initiates random access according to the SUL carrier information.
The apparatus of this embodiment may be used to implement the technical solution of the method embodiment shown in fig. 1, and the implementation principle and the technical effect are similar, which are not described herein again.
Optionally, the SUL carrier information may include: the SUL carrier frequency point information, the priority information of the SUL carrier frequency points and the configuration information of the SUL cell corresponding to the SUL carrier frequency points.
Optionally, before sending the radio resource release message to the terminal device, the method further includes: and judging whether the terminal equipment supports the SUL carrier.
Fig. 6 shows a terminal device, which is only illustrated in fig. 6, and the embodiment of the present invention does not show that the present invention is limited thereto. Fig. 6 is a schematic structural diagram of an embodiment of a terminal device provided in the present invention. As shown in fig. 6, the terminal device 60 provided in this embodiment may include: a receiving module 601 and a processing module 602.
A receiving module 601, configured to receive a radio resource release message sent by a base station, where the radio resource release message includes supplementary uplink SUL carrier information;
a processing module 602, configured to initiate random access according to the SUL carrier information.
The apparatus of this embodiment may be used to implement the technical solution of the method embodiment shown in fig. 3, and the implementation principle and the technical effect are similar, which are not described herein again.
Optionally, the SUL carrier information includes: the SUL carrier frequency point information, the priority information of the SUL carrier frequency points and the configuration information of the SUL cell corresponding to the SUL carrier frequency points.
Optionally, the processing module 602 is specifically configured to obtain an SUL carrier frequency point with the highest priority according to the SUL carrier frequency point information and the priority information of the SUL carrier frequency point; and initiating random access on the SUL carrier frequency point with the highest priority.
Fig. 7 shows a base station, which is only illustrated in fig. 7, and the embodiment of the present invention does not show that the present invention is limited thereto. Fig. 7 is a schematic structural diagram of a base station according to another embodiment of the present invention. As shown in fig. 7, the base station 70 provided in this embodiment includes: memory 701, processor 702, and bus 703. The bus 703 is used to realize the connection between the elements.
The memory 701 stores a computer program, and when executed by the processor 702, the computer program can implement any of the above-described technical solutions applied to the embodiments of the random access method for the base station.
Wherein, the memory 701 and the processor 702 are electrically connected directly or indirectly to realize data transmission or interaction. For example, these components may be electrically connected to each other via one or more communication buses or signal lines, such as bus 703. The memory 701 stores therein a computer program for implementing a random access method applied to a base station, including at least one software functional module that can be stored in the memory 701 in the form of software or firmware, and the processor 702 executes various functional applications and data processing by running the software program and module stored in the memory 701.
The Memory 701 may be, but is not limited to, a Random Access Memory (RAM), a Read Only Memory (ROM), a Programmable Read-Only Memory (PROM), an Erasable Read-Only Memory (EPROM), an electrically Erasable Read-Only Memory (EEPROM), and the like. The memory 701 is used for storing programs, and the processor 702 executes the programs after receiving execution instructions. Further, the software programs and modules within the memory 701 may also include an operating system, which may include various software components and/or drivers for managing system tasks (e.g., memory management, storage device control, power management, etc.), and may communicate with various hardware or software components to provide an operating environment for other software components.
The processor 602 may be an integrated circuit chip having signal processing capabilities. The Processor 602 may be a general-purpose Processor, and includes a Central Processing Unit (CPU), a Network Processor (NP), and so on. The various methods, steps, and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. It will be appreciated that the configuration of fig. 6 is merely illustrative and may include more or fewer components than shown in fig. 6 or have a different configuration than shown in fig. 6. The components shown in fig. 6 may be implemented in hardware and/or software.
Fig. 8 shows a terminal device, which is provided in the embodiment of the present invention, and the embodiment of the present invention is only described with reference to fig. 8 as an example, which does not mean that the present invention is limited thereto. Fig. 8 is a schematic structural diagram of another embodiment of the terminal device provided by the present invention. The terminal device may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc. As shown in fig. 8, the terminal device provided in this embodiment may include one or more of the following components: a processing component 801, a memory 802, a power component 804, a multimedia component 806, an audio component 803, an input/output (I/O) interface 808, a sensor component 807, and a communication component 805.
The processing component 801 generally controls the overall operation of the terminal device, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 801 may include one or more processors 8011 that execute instructions to perform all or part of the steps of the methods described above. Further, the processing component 801 may include one or more modules that facilitate interaction between the processing component 801 and other components. For example, the processing component 801 may include a multimedia module to facilitate interaction between the multimedia component 806 and the processing component 801.
The memory 802 is configured to store various types of data to support operations at the terminal device. Examples of such data include instructions for any application or method operating on the terminal device, contact data, phonebook data, messages, pictures, videos, etc. The memory 802 may be implemented by any type or combination of volatile and non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks. In this embodiment, a computer program is stored in the memory 802, and the computer program can be executed by the processor 8011 to implement any of the above-described technical solutions applied to the embodiments of the random access method of the terminal device.
The power supply component 804 provides power to the various components of the terminal device. The power components 804 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the terminal device.
The multimedia component 806 includes a screen providing an output interface between the terminal device and the user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 806 includes a front facing camera and/or a rear facing camera. When the terminal device is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera can receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.
The audio component 803 is configured to output and/or input audio signals. For example, the audio component 803 may include a Microphone (MIC) configured to receive external audio signals when the terminal device is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal may further be stored in the memory 802 or transmitted via the communication component 805. In this embodiment, a voice signal of a user performing voice control on the terminal device may be collected by the microphone, and then sent to the cloud server via the communication component 805. In some embodiments, audio component 803 further includes a speaker for outputting audio signals. In this embodiment, the prompt information for the user may be played through the speaker.
The I/O interface 808 provides an interface between the processing component 801 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.
The sensor component 807 includes one or more sensors for providing various aspects of status assessment for the terminal device. For example, the sensor component 807 may detect the open/closed state of the terminal device, the relative positioning of components, such as a display and keypad of the terminal device, the sensor component 807 may also detect a change in the position of the terminal device or a component of the terminal device, the presence or absence of user contact with the terminal device, orientation or acceleration/deceleration of the terminal device, and a change in the temperature of the terminal device. Sensor assembly 807 may comprise a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact. The sensor assembly 807 can also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 807 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 805 is configured to facilitate communication between the terminal device and other devices in a wired or wireless manner. In this embodiment, the communication component 805 is used to implement interaction between the terminal device and the cloud server. The terminal device may access a wireless network based on a communication standard, such as WiFi, 2G, 3G, or 4G, or a combination thereof. In an exemplary embodiment, the communication component 805 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 805 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.
In an exemplary embodiment, the terminal device may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described methods.
In an exemplary embodiment, a non-transitory computer readable storage medium is also provided, such as the memory 802 including instructions executable by the processor 8011 of the terminal device to perform the above method. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
The terminal device provided in this embodiment may be configured to execute any of the above technical solutions applied to the random access method embodiment of the terminal device, and the implementation principle and the technical effect are similar, which are not described herein again.
The embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, can implement the random access method provided in any of the above method embodiments. The computer-readable storage medium in this embodiment may be any available medium that can be accessed by a computer or a data storage device such as a server, a data center, etc. that is integrated with one or more available media, and the available media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., DVDs), or semiconductor media (e.g., SSDs), etc.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (7)

1. A random access method applied to a base station is characterized by comprising the following steps:
receiving a random access request initiated by terminal equipment on a frequency division duplex FDD carrier;
if the base station detects that an inactive timer of the terminal equipment is overtime, sending a wireless resource release message to the terminal equipment, wherein the wireless resource release message comprises supplementary uplink SUL carrier information so that the terminal equipment initiates random access according to the SUL carrier information, and the time length value of the inactive timer of the terminal equipment is determined according to configuration information sent by the terminal equipment;
the SUL carrier information includes: the method comprises the steps that SUL carrier frequency point information, priority information of SUL carrier frequency points and configuration information of SUL cells corresponding to the SUL carrier frequency points are obtained;
before sending the radio resource release message to the terminal device, the method further includes:
judging whether the terminal equipment supports SUL carrier waves; when the terminal equipment registers information to the base station, the registered base station is informed whether the terminal equipment supports the SUL carrier.
2. A random access method is applied to a terminal device, and is characterized by comprising the following steps:
receiving a wireless resource release message sent by a base station, wherein the wireless resource release message comprises supplementary uplink SUL carrier information;
the terminal equipment initiates random access according to the SUL carrier information;
the SUL carrier information includes: the method comprises the steps that SUL carrier frequency point information, priority information of SUL carrier frequency points and configuration information of SUL cells corresponding to the SUL carrier frequency points are obtained;
the terminal equipment initiates random access according to the SUL carrier information, and the method comprises the following steps:
the terminal equipment acquires the SUL carrier frequency point with the highest priority according to the SUL carrier frequency point information and the priority information of the SUL carrier frequency point;
and the terminal equipment initiates random access on the SUL carrier frequency point with the highest priority.
3. A base station, comprising:
a receiving module, configured to receive a random access request initiated by a terminal device on a frequency division duplex FDD carrier;
a sending module, configured to send a radio resource release message to a terminal device if an inactivity timer of the terminal device is detected to be overtime, where the radio resource release message includes supplementary uplink SUL carrier information, so that the terminal device initiates random access according to the SUL carrier information; the SUL carrier information includes: the method comprises the steps that SUL carrier frequency point information, priority information of SUL carrier frequency points and configuration information of SUL cells corresponding to the SUL carrier frequency points are obtained; wherein the time length value of the inactivity timer of the terminal device is determined according to the configuration information sent by the terminal device;
before the sending the radio resource release message to the terminal device, the method further includes: judging whether the terminal equipment supports the SUL carrier or not; when the terminal equipment registers information to the base station, the registered base station is informed whether the terminal equipment supports the SUL carrier.
4. A terminal device, comprising:
a receiving module, configured to receive a radio resource release message sent by a base station, where the radio resource release message includes supplementary uplink SUL carrier information;
the processing module is used for initiating random access according to the SUL carrier information; the SUL carrier information includes: the method comprises the steps that SUL carrier frequency point information, priority information of SUL carrier frequency points and configuration information of SUL cells corresponding to the SUL carrier frequency points are obtained;
the processing module is specifically configured to obtain an SUL carrier frequency point with the highest priority according to the SUL carrier frequency point information and the priority information of the SUL carrier frequency point; and initiating random access on the SUL carrier frequency point with the highest priority.
5. A base station, comprising:
a memory;
a processor; and
a computer program;
wherein the computer program is stored in the memory and configured to be executed by the processor to implement the random access method of claim 1.
6. A terminal device, comprising:
a memory;
a processor; and
a computer program;
wherein the computer program is stored in the memory and configured to be executed by the processor to implement the random access method of claim 2.
7. A computer-readable storage medium, having stored thereon a computer program for execution by a processor to implement the random access method of claim 1 or the random access method of claim 2.
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