CN112702796B - Random access method, configuration method, device, related equipment and storage medium - Google Patents

Random access method, configuration method, device, related equipment and storage medium Download PDF

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Publication number
CN112702796B
CN112702796B CN201911013563.3A CN201911013563A CN112702796B CN 112702796 B CN112702796 B CN 112702796B CN 201911013563 A CN201911013563 A CN 201911013563A CN 112702796 B CN112702796 B CN 112702796B
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bwp
information
random access
frequency point
terminal
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CN112702796A (en
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刘洋
李男
胡南
徐晓东
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China Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
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China Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
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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
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal
    • 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 invention discloses a random access method, a configuration device, related equipment and a storage medium. The method comprises the following steps: the terminal does not perform a random access procedure on the first BWP; the terminal determines the frequency point of a second BWP by using the first information and performs a random access process on the second BWP; wherein the first information is received on the first BWP; the network device repeatedly broadcasts the second information on the first BWP; the second information is the SSB in the first direction.

Description

Random access method, configuration method, device, related equipment and storage medium
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a random access method, a configuration method, an apparatus, a related device, and a storage medium.
Background
In practical deployment of the fifth generation mobile communication technology (5G) network, occlusion of a building may cause a coverage hole at a certain location in a certain direction, for example, a coverage hole occurs in a corresponding signal direction on a certain BandWidth Part (BWP) (which may be referred to as an original BWP), in which case, the base station repeatedly broadcasts a synchronization signal/physical broadcast channel block (SSB, SS/PBCH block) in the coverage hole direction on a new BWP, and combines diversity gains to improve signal quality of the coverage hole. However, a terminal that should normally perform a random access procedure on an original BWP may perform a random access procedure on a new BWP, thereby causing insufficient random access resources on the new BWP.
Disclosure of Invention
In view of this, embodiments of the present invention provide a random access method, a configuration method, an apparatus, a related device, and a storage medium.
The technical scheme of the embodiment of the invention is realized as follows:
the embodiment of the invention provides a random access method, which is applied to a terminal and comprises the following steps:
not performing a random access procedure on the first BWP;
determining a frequency point of a second BWP by using first information, and performing a random access process on the second BWP; wherein,
receiving the first information on the first BWP; the network device repeatedly broadcasts the second information on the first BWP; the second information is the SSB in the first direction.
In the foregoing solution, the first information includes one of the following information:
frequency point difference information of the second BWP and the first BWP;
frequency point information of the second BWP.
In the above solution, when receiving the first information on the first BWP, the method includes at least one of:
receiving the first information broadcasted by the network equipment through a broadcast message;
receiving the first information sent by a network device through Radio Resource Control (RRC) signaling.
In the foregoing solution, determining not to perform the random access procedure on the first BWP includes:
detecting a signal quality on the first BWP;
determining not to perform a random access procedure on the first BWP when the detected signal quality satisfies at least one of the following conditions:
detecting that SSB and/or Channel State Information-Reference Signal (CSI-RS) Signal quality on the first BWP is greater than a first threshold;
and the detected signal quality of the cell corresponding to the first BWP is greater than a second threshold.
In the above scheme, the method further comprises:
receiving a corresponding threshold sent by the network device on the first BWP.
In the foregoing solution, the receiving the corresponding threshold sent by the network device on the first BWP includes:
a corresponding threshold is broadcast by the receiving network device over the broadcast message on the first BWP.
The embodiment of the invention also provides a random access configuration method, which is applied to network equipment and comprises the following steps:
transmitting first information on a first BWP; the first information is used for the terminal to determine a frequency point of a second BWP, so that a random access process is performed on the second BWP under the condition that the random access process is not performed on the first BWP; wherein,
Repeatedly broadcasting second information on the first BWP, wherein the second information is SSB in the first direction;
in the foregoing solution, the first information includes one of the following information:
frequency point difference information of the second BWP and the first BWP;
frequency point information of the second BWP.
In the foregoing solution, when the first information is sent on the first BWP, the method includes at least one of:
broadcasting the first information through a broadcast message;
the first information is transmitted through radio resource control signaling.
In the above scheme, the method further comprises:
transmitting a respective threshold on the first BWP, the respective threshold comprising at least one of:
a first threshold; the first threshold is used for the terminal to determine whether the detected quality of the SSB and/or CSI-RS signal on the first BWP is greater than the first threshold;
a second threshold; the second threshold is used for the terminal to determine whether the detected signal quality of the cell corresponding to the first BWP is greater than the second threshold.
In the foregoing solution, the sending the corresponding threshold on the first BWP includes:
broadcasting a corresponding threshold on the first BWP via a broadcast message.
An embodiment of the present invention further provides a random access apparatus, including:
The determining unit is configured to determine the frequency point of the second BWP by using the first information under the condition that the terminal does not perform the random access process on the first BWP;
an access unit configured to perform a random access procedure on the second BWP; wherein,
the terminal receiving the first information on the first BWP; the network device repeatedly broadcasts the second information on the first BWP; the second information is the SSB in the first direction.
The embodiment of the invention also provides a configuration device of random access, which comprises:
a first transmitting unit for transmitting first information on a first BWP; the first information is used for the terminal to determine a frequency point of a second BWP, so that a random access process is performed on the second BWP under the condition that the random access process is not performed on the first BWP;
a broadcasting unit, configured to repeatedly broadcast second information on the first BWP, where the second information is SSB in the first direction.
An embodiment of the present invention further provides a terminal, including: a first processor and a first communication interface; wherein,
the first processor is configured to, when the terminal does not perform a random access procedure on a first BWP, determine a frequency point of a second BWP by using first information, and perform the random access procedure on the second BWP through the first communication interface; wherein,
The first communication interface to receive the first information on the first BWP; the network device repeatedly broadcasts the second information on the first BWP; the second information is the SSB in the first direction.
An embodiment of the present invention further provides a network device, including: a second processor and a second communication interface; wherein,
the second communication interface is used for sending first information on a first BWP; the first information is used for the terminal to determine a frequency point of a second BWP, so that a random access process is performed on the second BWP under the condition that the random access process is not performed on the first BWP; wherein,
the second communication interface is further configured to repeatedly broadcast second information on the first BWP, where the second information is SSB in the first direction.
An embodiment of the present invention further provides a terminal, including: a first processor and a first memory for storing a computer program capable of running on the processor,
wherein the first processor is configured to execute the steps of any of the above-mentioned methods at the terminal side when running the computer program.
An embodiment of the present invention further provides a network device, including: a second processor and a second memory for storing a computer program capable of running on the processor,
Wherein the second processor is configured to execute the steps of any one of the methods of the network device side when the computer program is executed.
An embodiment of the present invention further provides a storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of any one of the methods in the terminal side, or implements the steps of any one of the methods in the network device side.
In the random access method, the configuration method, the apparatus, the related device, and the storage medium according to embodiments of the present invention, the network device repeatedly broadcasts the second information on the first BWP, where the second information is SSB in the first direction, and sends the first information on the first BWP, and the terminal determines the frequency point of the second BWP by using the first information received on the first BWP without performing the random access procedure on the first BWP, and performs the random access procedure on the second BWP, and after determining that the random access procedure is not performed on the BWP broadcasting the second information, the terminal knows the first information and determines the frequency point of the second BWP, so that the random access procedure can be performed on the frequency point of the second BWP, and thus, the terminal that should normally perform the random access procedure on the original BWP can be prevented from performing the random access procedure on the new BWP when detecting the new BWP broadcasting SSB in a certain direction, thereby further avoiding unreasonable consumption of access resources for the new BWP.
Drawings
FIG. 1 is a schematic diagram of a network architecture deployment according to an embodiment of the present invention;
FIG. 2 is a diagram illustrating the received signal strength of a terminal according to an embodiment of the present invention;
FIG. 3 is a flow chart of a method for random access according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating a process of determining that a terminal does not perform a random access procedure on a first BWP according to an embodiment of the present invention;
FIG. 5 is a flowchart illustrating a method for random access according to an embodiment of the present invention;
FIG. 6 is a diagram illustrating a random access procedure according to an embodiment of the present invention;
FIG. 7 is a diagram illustrating a random access procedure according to another embodiment of the present invention;
fig. 8 is a schematic structural diagram of a random access apparatus according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a configuration apparatus for random access according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of a terminal according to an embodiment of the present invention;
FIG. 11 is a diagram illustrating a network device according to an embodiment of the present invention;
fig. 12 is a schematic structural diagram of a random access system according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
The application scenario of the embodiment of the present invention is that, as shown in fig. 1, due to the occlusion of the building 11, the base station 12 has a coverage hole in the beam direction 3 (the corresponding BWP is the original BWP), and as shown in fig. 2, the existence of the coverage hole causes the poor quality of the received signal of the terminal, and therefore, the base station 12 repeatedly broadcasts the SSB in the beam direction 3 on the new BWP, and uses the combined diversity gain to improve the signal quality of the coverage hole. For a terminal, if it detects that the signal level of the BWP is higher than a set threshold, the terminal autonomously initiates random access on the BWP. Therefore, in the above scenario, as the terminal moves, it is assumed that the coverage of the beam direction 3 on the original BWP where the terminal is located is good enough, and at this time, if the terminal residing on the new BWP detects that the signal level of the new BWP is higher than the set threshold, the terminal will perform the random access procedure on the new BWP, and once there are a large number of terminals taking the same procedure, the access resource on the new BWP will be exhausted, resulting in waste of the access resource on the new BWP.
Based on this, in various embodiments of the present invention, the terminal does not perform the random access procedure on the first BWP, but receives the first information on the first BWP to determine the frequency point of the second BWP, and performs the random access procedure on the second BWP.
An embodiment of the present invention provides a random access method, which is applied to a terminal, and as shown in fig. 3, the random access method provided by the embodiment of the present invention includes:
step 301: no random access procedure is performed on the first BWP.
Step 302: and determining the frequency point of a second BWP by using the first information, and performing a random access process on the second BWP.
Here, in practical application, the network device refers to a base station, such as a next generation node b (gnb) in a 5G system.
In step 301, the terminal resides on a first BWP and determines not to perform a random access procedure on the first BWP. Wherein for a first BWP, a network device repeatedly broadcasts the second information on the first BWP; the second information is the SSB in the first direction.
Here, by repeatedly broadcasting the SSB in the coverage hole direction on the first BWP by the network device, the signal quality in the coverage hole direction can be improved.
In practical application, the first direction may be a coverage hole direction of a network device, for example, a beam direction 3 shown in fig. 1 is a coverage hole direction of a base station. Specifically, the first direction may be a coverage hole direction on the second BWP.
The coverage hole is relative to the terminal, and when the signal quality detected by the terminal is less than the corresponding threshold, the terminal is considered to be located in the coverage hole direction of the base station signal.
In an embodiment, as shown in fig. 4, the determining, by the terminal, that the random access procedure is not performed on the first BWP includes:
step 401: detecting a signal quality on the first BWP.
Wherein detecting signal quality on the first BWP comprises: detecting a beam signal quality on the first BWP, and/or detecting a cell signal quality on the first BWP.
In practical applications, the beam Signal Quality may be characterized by the SSB and/or CSI-RS Signal Quality on the first BWP, such as the Reference Signal Received Power (RSRP), the Reference Signal Receiving Quality (RSRQ), or the Signal to Interference plus Noise Ratio (SINR) of the beam.
In practical application, the cell signal quality may be RSRP, RSRQ, SINR, or the like of the cell.
Step 402: determining not to perform a random access procedure on the first BWP when the detected signal quality satisfies at least one of the following conditions:
the detected SSB and/or CSI-RS signal quality on the first BWP is greater than a first threshold;
And the detected signal quality of the cell corresponding to the first BWP is greater than a second threshold.
When the detected signal meets at least one of the above conditions, it indicates that the current position of the terminal is already a non-coverage hole area. Accordingly, the terminal may perform a random access procedure on the second BWP.
Here, in practical application, the network device may configure the first threshold and the second threshold for the terminal.
Based on this, in an embodiment, the method further comprises:
the corresponding threshold sent by the network device on the first BWP is received.
In particular, the respective thresholds may comprise a first threshold and/or a second threshold.
As can be seen from the above description, the first threshold is used to determine the signal quality of the SSB and/or CSI-RS on the first BWP, and the second threshold is used to determine the signal quality of the cell on the first BWP. When the signal quality detected by the terminal is greater than the corresponding threshold, the terminal determines not to perform a random access procedure on the first BWP.
On one side of the network device, the threshold may be determined by the following method:
first, a coverage hole on the second BWP may be determined. In practice, the coverage hole on the second BWP may be determined by using relevant software for channel and coverage estimation, and typically, the coverage hole is determined in an area with a signal reception quality less than-80 dBm. And after the coverage hole is determined, determining actual signal values of different positions in the coverage hole. And finally, determining a corresponding threshold according to the determined highest signal value and the determined lowest signal value. In particular, the threshold may be determined from the beam and/or cell perspective. When the threshold is determined from the beam angle, the signal values (such as RSRP, RSRQ, SINR, or the like) of beams at each position of the coverage hole are detected, and the highest signal value of the signal values of the beams is determined from the detected positions, and the signal values of the beams at each position of the non-coverage hole surrounding the coverage hole are detected, and the lowest signal value of the signal values of the beams is determined, so that the beam quality determination threshold of the coverage hole, i.e., the first threshold, is determined according to the highest signal value and the lowest signal value. When the threshold is determined from the cell perspective, signal values (such as RSRP, RSRQ, SINR, or the like) of cells at positions of the coverage hole are detected, and a highest signal value of the signal values of the cells is determined from the detected positions, and signal values of cells at positions of non-coverage holes around the coverage hole are detected, and a lowest signal value of the signal values of the cells is determined, so that a cell quality determination threshold, i.e., a second threshold, of the coverage hole is determined according to the highest signal value and the lowest signal value.
In one embodiment, the network device sends the corresponding threshold on the first BWP, and the terminal receives the corresponding threshold sent by the network device on the first BWP. In practical application, the network device may broadcast the corresponding threshold on the first BWP through the broadcast message, and the terminal receives the broadcast message on the first BWP from the network device in an idle state, that is, in a state where the terminal does not establish an RRC connection with the network device, and obtains the corresponding threshold.
In step 302, the terminal receives the first information on the first BWP.
Here, the first information includes one of the following information:
frequency point difference information of the second BWP and the first BWP;
frequency point information of the second BWP.
The terminal may calculate the frequency point of the second BWP based on the frequency point of the first BWP according to the frequency point difference information between the second BWP and the first BWP.
Here, the bin difference information may be a bin difference value between the second BWP and the first BWP, when actually applied.
Correspondingly, the frequency point information of the second BWP may also be the frequency point value of the second BWP.
In actual application, the network device may broadcast the first information, or may send the first information to the terminal through RRC signaling.
Based on this, in an embodiment, the method comprises at least one of the following when receiving the first information on the first BWP:
receiving the first information broadcasted by the network equipment through a broadcast message;
and receiving the first information sent by the network equipment through RRC signaling.
In practical application, a terminal in an idle state may receive a broadcast message of a network device on a first BWP and obtain first information from the broadcast message; the network device may also send the first information, such as an RRC connection reconfiguration message, to the terminal through RRC signaling.
In practical application, after receiving the first information, the terminal determines the frequency point of the second BWP by using the first information, and then converts (or transfers) the frequency point of the second BWP to the second BWP for performing the random access procedure.
Correspondingly, the embodiment of the invention also provides a random access configuration method, which is applied to network equipment and comprises the following steps:
transmitting first information on a first BWP; the first information is used for the terminal to determine a frequency point of a second BWP, so that a random access process is performed on the second BWP without performing the random access process on the first BWP.
Wherein the network device repeatedly broadcasts the second information on the first BWP; the second information is an SSB of the network device in the direction of the coverage hole. By repeatedly broadcasting the SSB in the coverage hole direction on the first BWP by the network device, the signal quality in the coverage hole direction can be improved.
Here, the first information transmitted by the network device on the first BWP includes one of:
frequency point difference information of the second BWP and the first BWP;
frequency point information of the second BWP.
The network device may send, on the first BWP, frequency point difference information between the second BWP and the first BWP, so that the terminal calculates a frequency point of the second BWP based on the frequency point of the first BWP, where the frequency point difference information may be a frequency point difference value between the second BWP and the first BWP; the network device may also send the frequency point value of the second BWP on the first BWP, and the terminal directly receives the frequency point value of the second BWP on the first BWP.
In an embodiment, when the first information is transmitted on the first BWP, the method includes at least one of:
broadcasting the first information through a broadcast message;
the first information is transmitted through RRC signaling.
In practical application, the network device may broadcast the first information through a broadcast message of the first BWP, and the terminal in the idle state may receive the broadcast message of the network device on the first BWP and obtain the first information therefrom; when the terminal and the network device are in a connected state, the network device may further send the first information to the terminal through RRC signaling.
In practical application, after receiving the first information, the terminal determines the frequency point of the second BWP by using the first information, so that the terminal is switched to the second BWP for the random access process in a frequency hopping manner based on the frequency point of the second BWP.
In an embodiment, the method may further comprise:
transmitting a respective threshold on the first BWP, the respective threshold comprising at least one of:
a first threshold; the first threshold is used for the terminal to determine whether the detected quality of the SSB and/or CSI-RS signal on the first BWP is greater than the first threshold;
a second threshold; the second threshold is used for the terminal to determine whether the detected cell signal quality corresponding to the first BWP is greater than the second threshold.
The network device sends the corresponding threshold on the first BWP, and the terminal receives the corresponding threshold sent by the network device on the first BWP. Further, the network device broadcasts the corresponding threshold on the first BWP through the broadcast message, and the terminal receives the broadcast message of the network device on the first BWP in the idle state, and obtains the corresponding threshold therefrom. When the signal quality detected by the terminal is greater than the corresponding threshold, the terminal determines not to perform a random access procedure on the first BWP.
An embodiment of the present invention provides a random access method, as shown in fig. 5, the method includes:
step 501: the network device repeatedly broadcasts the second information on the first BWP and transmits the first information on the first BWP.
And the second information is the SSB of the network equipment in the direction of the coverage hole.
Step 502: the terminal determines the frequency point of a second BWP by using first information received on a first BWP under the condition of not performing a random access process on the first BWP;
step 503: the terminal performs a random access procedure on a second BWP.
It should be noted that: the specific processing procedures of the network device and the terminal have been described in detail above, and are not described in detail here.
In the embodiment of the invention, the network device repeatedly broadcasts the second information on the first BWP, wherein the second information is SSB in the first direction, and transmits the first information on the first BWP, in case that the terminal does not perform a random access procedure on the first BWP, determining a frequency point of a second BWP using the first information received on the first BWP, and performs a random access procedure on the second BWP, determines that the random access procedure is not performed on the BWP broadcasting the second information, and then determines the frequency point of the second BWP because the terminal knows the first information, therefore, the random access process can be performed on the second BWP frequency point, and thus, the terminal that should perform the random access process on the original BWP normally can be prevented from performing the random access process on the new BWP when detecting the new BWP broadcasting the SSB in a certain direction, thereby further preventing the unreasonable consumption of access resources of the new BWP.
The present invention will be described in further detail with reference to the following application examples.
In an embodiment within application of the present invention, as shown in fig. 1, a User Equipment (UE) is located in a coverage hole area of an original BWP, and as the UE moves, the UE is located in a non-coverage hole area of the original BWP.
Application embodiment 1
In this application embodiment, the UE is in a connected state. Referring to fig. 6, a process of the UE performing the random access procedure includes:
step 601: and the gNB sends the frequency point difference value between the original BWP and the new BWP or sends the frequency point value of the original BWP through RRC signaling on the new BWP, and then executes step 602.
Step 602: the UE resides on the new BWP, measures the signal quality of the new BWP at the current location to be higher than the corresponding threshold, and then determines that the current location is in the non-coverage hole area of the original BWP, and therefore determines not to perform the random access procedure on the new BWP, and then performs step 603.
Step 603: and the UE performs a random access process on the original BWP according to the frequency point values of the original BWP.
Application example two
In this application embodiment, the UE is in an idle state. Referring to fig. 7, a process of the UE performing the random access procedure includes:
step 701: after the gNB broadcasts the frequency point difference value between the original BWP and the new BWP or broadcasts the frequency point value of the original BWP on the new BWP, step 702 is executed.
Step 702: the UE resides on the new BWP, measures the signal quality of the new BWP at the current location to be higher than the corresponding threshold, and then determines that the current location is in the non-coverage hole area of the original BWP, and therefore determines not to perform the random access procedure on the new BWP, and then performs step 703.
Step 703: and the UE performs a random access process on the original BWP according to the frequency point value of the original BWP.
In order to implement the method according to the embodiment of the present invention, an embodiment of the present invention further provides a random access apparatus, which is disposed on a terminal, and as shown in fig. 8, includes: a determination unit 801 and an access unit 802; wherein,
the determining unit 801 is configured to determine a frequency point of a second BWP by using first information under the condition that the terminal does not perform a random access procedure on the first BWP;
the access unit 802, configured to perform a random access procedure on the second BWP; wherein,
the terminal receiving the first information on the first BWP; the network device repeatedly broadcasts the second information on the first BWP; the second information is an SSB of the network device in the direction of the coverage hole.
In an embodiment, the first information comprises one of the following information:
frequency point difference information of the second BWP and the first BWP;
Frequency point information of the second BWP.
In an embodiment, when the terminal receives the first information on the first BWP, the apparatus further includes a receiving unit configured to perform at least one of:
receiving the first information broadcasted by the network equipment through a broadcast message;
and receiving the first information sent by the network equipment through RRC signaling.
In an embodiment, the determining unit 801 is configured to:
detecting a signal quality on the first BWP;
determining not to perform a random access procedure on the first BWP when the detected signal quality satisfies at least one of the following conditions:
the detected signal quality of the SSB and/or the channel state information reference signal (CSI-RS) on the first BWP is greater than a first threshold;
the detected signal quality of the cell corresponding to the first BWP is greater than a second threshold.
In an embodiment, the receiving unit is configured to receive a corresponding threshold sent by the network device on the first BWP.
In an embodiment, the receiving unit is configured to:
the receiving network device broadcasts a corresponding threshold over the first BWP via a broadcast message.
In practical application, the determining unit 1001 and the accessing unit 1002 may be implemented by a processor in a random access device in combination with a communication interface; the receiving unit may be implemented by a communication interface in a random access device.
It should be noted that: in the random access apparatus provided in the above embodiment, only the division of the program modules is exemplified when performing random access, and in practical applications, the above processing may be allocated to different program modules according to needs, that is, the internal structure of the apparatus is divided into different program modules to complete all or part of the above-described processing. In addition, the random access apparatus and the random access method provided by the above embodiments belong to the same concept, and specific implementation processes thereof are described in the method embodiments and are not described herein again.
In order to implement the method on the network device side in the embodiment of the present invention, an embodiment of the present invention further provides a configuration device for random access, which is disposed on a network device, and as shown in fig. 9, the configuration device includes: a first transmission unit 901 and a broadcast unit 902; wherein,
the first sending unit 901 is configured to send first information on a first BWP; the first information is used for the terminal to determine a frequency point of a second BWP, so that a random access process is performed on the second BWP under the condition that the random access process is not performed on the first BWP;
the broadcasting unit 902 is configured to repeatedly broadcast second information on the first BWP, where the second information is SSB in the first direction.
In an embodiment, the first information comprises one of the following information:
frequency point difference information of the second BWP and the first BWP;
frequency point information of the second BWP.
In an embodiment, the first sending unit 901 is configured to, when sending the first information on the first BWP, at least one of the following:
broadcasting the first information through a broadcast message;
the first information is transmitted through RRC signaling.
In one embodiment, the apparatus further comprises:
a second sending unit configured to send a respective threshold on the first BWP, the respective threshold comprising at least one of:
a first threshold; the first threshold is used for the terminal to determine whether the detected quality of the SSB and/or CSI-RS signal on the first BWP is greater than the first threshold;
a second threshold; the second threshold is used for the terminal to determine whether the detected signal quality of the cell corresponding to the first BWP is greater than the second threshold.
In an embodiment, the second sending unit is configured to:
broadcasting a corresponding threshold on the first BWP via a broadcast message.
In practical applications, the first sending unit 901, the broadcasting unit 902, and the second sending unit may be implemented by a processor in a configuration device with random access in combination with a communication interface.
It should be noted that: in the random access configuration device provided in the above embodiment, when performing random access configuration, only the division of each program module is illustrated, and in practical applications, the above processing allocation may be completed by different program modules according to needs, that is, the internal structure of the device is divided into different program modules to complete all or part of the above-described processing. In addition, the configuration apparatus for random access and the configuration method embodiment for random access provided in the above embodiments belong to the same concept, and specific implementation processes thereof are detailed in the method embodiment and are not described herein again.
Based on the hardware implementation of the program module, and in order to implement the method on the terminal side in the embodiment of the present invention, an embodiment of the present invention further provides a terminal, as shown in fig. 10, where the terminal 100 includes:
the first communication interface 101 can perform information interaction with network equipment;
the first processor 102 is connected to the first communication interface 101 to implement information interaction with a network device, and is configured to execute a method provided by one or more technical solutions of the terminal side when running a computer program. And the computer program is stored on the first memory 103.
Specifically, the first processor 102 is configured to, in a case that the terminal does not perform a random access process on a first BWP, determine a frequency point of a second BWP by using first information, and perform the random access process on the second BWP through the first communication interface 101; wherein,
the first communication interface 101, configured to receive the first information on the first BWP; the network device repeatedly broadcasts the second information on the first BWP; the second information is an SSB of the network device in the direction of the coverage hole.
In an embodiment, the first information comprises one of the following information:
frequency point difference information of the second BWP and the first BWP;
frequency point information of the second BWP.
In one embodiment, the first communication interface 101, when receiving the first information on the first BWP, comprises at least one of:
the first communication interface 101 receives the first information broadcast by a network device through a broadcast message;
the first communication interface 101 receives the first information sent by the network device through RRC signaling.
In one embodiment, the terminal determining not to perform the random access procedure on the first BWP includes:
detecting, by the first processor 102, a signal quality on the first BWP;
The terminal determines not to perform a random access procedure on the first BWP when the signal quality detected by the first processor 102 satisfies at least one of the following conditions:
the SSB and/or channel state information reference signal, CSI-RS, signal quality on the first BWP detected by the first processor 122 is greater than a first threshold;
the signal quality of the cell corresponding to the first BWP detected by the first processor 102 is greater than a second threshold.
In an embodiment, the first communication interface 101 is further configured to:
receiving a corresponding threshold sent by the network device on the first BWP.
In one embodiment, the receiving, by the first communication interface 101, the corresponding threshold sent by the network device on the first BWP includes:
the first communication interface 101 receives a corresponding threshold for a network device to broadcast over a broadcast message on a first BWP.
It should be noted that: the specific processing procedures of the first processor 102 and the first communication interface 101 are detailed in the method embodiment, and are not described herein again.
Of course, in practice, the various components in the terminal 100 are coupled together by the bus system 104. It is understood that the bus system 104 is used to enable communications among the components. The bus system 104 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled as bus system 104 in fig. 10.
The first memory 103 in the embodiment of the present invention is used to store various types of data to support the operation of the terminal 100. Examples of such data include: any computer program for operating on the terminal 100.
The method disclosed in the above embodiments of the present invention may be applied to the first processor 102, or implemented by the first processor 102. The first processor 102 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be implemented by integrated logic circuits of hardware or instructions in the form of software in the first processor 102. The first Processor 102 may be a general purpose Processor, a Digital Signal Processor (DSP), or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, etc. The first processor 102 may implement or perform the methods, steps and logic blocks disclosed in the embodiments of the present invention. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed by the embodiment of the invention can be directly implemented by a hardware decoding processor, or can be implemented by combining hardware and software modules in the decoding processor. The software module may be located in a storage medium located in the first memory 103, and the first processor 102 reads the information in the first memory 103 and completes the steps of the foregoing method in combination with its hardware.
In an exemplary embodiment, the terminal 100 may be implemented by one or more Application Specific Integrated Circuits (ASICs), DSPs, Programmable Logic Devices (PLDs), Complex Programmable Logic Devices (CPLDs), Field-Programmable Gate arrays (FPGAs), general purpose processors, controllers, Micro Controllers (MCUs), microprocessors (microprocessors), or other electronic components for performing the aforementioned methods.
Based on the hardware implementation of the program modules, and in order to implement the method on the network device side according to the embodiment of the present invention, as shown in fig. 11, the network device 110 includes:
a second communication interface 111 capable of performing information interaction with a terminal;
and a second processor 112 connected to the second communication interface 111 to implement information interaction with a terminal, and configured to execute a method provided by one or more technical solutions of the network device side when running a computer program. And the computer program is stored on the second memory 113.
Specifically, the second communication interface 111 is configured to send first information on a first BWP; the first information is used for the terminal to determine a frequency point of a second BWP, so that a random access process is performed on the second BWP under the condition that the random access process is not performed on the first BWP; wherein,
The second communication interface 111 is further configured to repeatedly broadcast second information on the first BWP, where the second information is SSB in the first direction.
In an embodiment, the first information comprises one of the following information:
frequency point difference information of the second BWP and the first BWP;
frequency point information of the second BWP.
In an embodiment, said second communication interface 111, when sending the first information on said first BWP, comprises at least one of:
the second communication interface 111 broadcasts the first information through a broadcast message;
the second communication interface 111 transmits the first information through RRC signaling.
In an embodiment, the second communication interface 111 is further configured to:
transmitting a respective threshold on the first BWP, the respective threshold comprising at least one of:
a first threshold; the first threshold is used for the terminal to determine whether the detected quality of the SSB and/or CSI-RS signal on the first BWP is greater than the first threshold;
a second threshold; the second threshold is used for the terminal to determine whether the detected cell signal quality corresponding to the first BWP is greater than the second threshold.
In an embodiment, the sending, by the second communication interface 111, the corresponding threshold on the first BWP includes:
Broadcasting a corresponding threshold on the first BWP via a broadcast message.
It should be noted that: the specific processing procedures of the second processor 112 and the second communication interface 111 are detailed in the method embodiment, and are not described herein again.
Of course, in practice, the various components in network device 110 are coupled together by bus system 114. It will be appreciated that the bus system 114 is used to enable communications among the components. The bus system 114 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled as bus system 114 in FIG. 11.
The second memory 113 in the embodiment of the present invention is used to store various types of data to support the operation of the network device 110. Examples of such data include: any computer program for operating on network device 110.
The method disclosed in the above embodiments of the present invention may be applied to the second processor 112, or implemented by the second processor 112. The second processor 112 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be implemented by integrated logic circuits of hardware or instructions in the form of software in the second processor 112. The second processor 112 described above may be a general purpose processor, a DSP, or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. The second processor 112 may implement or perform the methods, steps and logic blocks disclosed in the embodiments of the present invention. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed by the embodiment of the invention can be directly implemented by a hardware decoding processor, or can be implemented by combining hardware and software modules in the decoding processor. The software module may be located in a storage medium located in the second memory 113, and the second processor 112 reads the information in the second memory 113 and, in conjunction with its hardware, performs the steps of the foregoing method.
In an exemplary embodiment, the network device 110 may be implemented by one or more ASICs, DSPs, PLDs, CPLDs, FPGAs, general-purpose processors, controllers, MCUs, microprocessors, or other electronic components for performing the foregoing methods.
It is understood that the memories (the first memory 103, the second memory 113) of the embodiments of the present invention may be either volatile memory or nonvolatile memory, and may include both volatile and nonvolatile memories. Among them, the nonvolatile Memory may be a Read Only Memory (ROM), a Programmable Read Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), a magnetic random access Memory (FRAM), a Flash Memory (Flash Memory), a magnetic surface Memory, an optical disk, or a Compact Disc Read-Only Memory (CD-ROM); the magnetic surface storage may be disk storage or tape storage. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), Enhanced Synchronous Dynamic Random Access Memory (Enhanced DRAM), Synchronous Dynamic Random Access Memory (SLDRAM), Direct Memory (DRmb Access), and Random Access Memory (DRAM). The described memory for embodiments of the present invention is intended to comprise, without being limited to, these and any other suitable types of memory.
To implement the method according to the embodiment of the present invention, an embodiment of the present invention provides a random access system, as shown in fig. 12, where the system includes: network device 121 and terminal 122; wherein,
the network device 121 repeatedly broadcasts the second information on the first BWP, where the second information is SSB in the first direction, and sends the first information on the first BWP, and the terminal 122 determines the frequency point of the second BWP by using the first information received on the first BWP without performing the random access procedure on the first BWP, and performs the random access procedure on the second BWP, and after determining that the random access procedure is not performed on the BWP broadcasting the second information, because the terminal 122 knows the first information and thus determines the frequency point of the second BWP, the random access procedure can be performed on the frequency point of the second BWP, so that the terminal 122 that should normally perform the random access procedure on the original BWP can be prevented from performing the random access procedure on the new BWP when detecting the new BWP broadcasting SSB in a certain direction, and thus unreasonable consumption of access resources of the new BWP is further avoided.
It should be noted that: the specific processing procedures of the network device 121 and the terminal 122 have been described in detail above, and are not described herein again.
In an exemplary embodiment, the present invention further provides a storage medium, specifically a computer-readable storage medium, for example, including a first memory 103 storing a computer program, which is executable by the first processor 102 of the terminal 100 to perform the steps of the aforementioned terminal-side method. For example, the second memory 113 may store a computer program, which may be executed by the second processor 112 of the network device 110 to perform the steps of the network device side method. The computer readable storage medium may be Memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface Memory, optical disk, or CD-ROM.
It should be noted that: "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
In addition, the technical solutions described in the embodiments of the present invention may be arbitrarily combined without conflict.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.

Claims (18)

1. A random access method is applied to a terminal, and comprises the following steps:
Determining not to perform a random access procedure on the first bandwidth part BWP;
determining a frequency point of a second BWP by using first information, and performing a random access process on the second BWP based on the frequency point of the second BWP; wherein,
receiving the first information on the first BWP; the network device repeatedly broadcasts second information on the first BWP; the second information is a synchronization signal/physical broadcast channel block SSB in a coverage hole direction on the second BWP.
2. The method of claim 1, wherein the first information comprises one of:
frequency point difference information of the second BWP and the first BWP;
frequency point information of the second BWP.
3. The method according to claim 1, wherein said receiving said first information on said first BWP comprises at least one of:
receiving the first information broadcasted by the network equipment through a broadcast message;
and receiving the first information sent by the network equipment through radio resource control signaling.
4. The method of claim 1, wherein determining that the random access procedure is not performed on the first BWP comprises:
Detecting a signal quality on the first BWP;
determining not to perform a random access procedure on the first BWP when the detected signal quality satisfies at least one of the following conditions:
detecting that SSB and/or channel state information reference signal (CSI-RS) signal quality on the first BWP is greater than a first threshold;
and the detected signal quality of the cell corresponding to the first BWP is greater than a second threshold.
5. The method of claim 4, further comprising:
receiving a corresponding threshold sent by the network device on the first BWP.
6. The method of claim 5, wherein receiving the respective threshold for the network device to transmit on the first BWP comprises:
a corresponding threshold is broadcast by the receiving network device over the broadcast message on the first BWP.
7. A configuration method of random access is applied to network equipment and comprises the following steps:
transmitting first information on a first BWP; the first information is used for the terminal to determine a frequency point of a second BWP, so that a random access process is performed on the second BWP based on the frequency point of the second BWP under the condition that the random access process is not performed on the first BWP; wherein,
Repeatedly broadcasting second information on a first BWP, wherein the second information is SSB in a coverage hole direction on a second BWP.
8. The method of claim 7, wherein the first information comprises one of:
frequency point difference information of the second BWP and the first BWP;
frequency point information of the second BWP.
9. The method according to claim 7, wherein said sending the first information on the first BWP comprises at least one of:
broadcasting the first information through a broadcast message;
the first information is transmitted through radio resource control signaling.
10. The method of claim 7, further comprising:
transmitting a respective threshold on the first BWP, the respective threshold comprising at least one of:
a first threshold; the first threshold is used for the terminal to determine whether the detected quality of the SSB and/or CSI-RS signal on the first BWP is greater than the first threshold;
a second threshold; the second threshold is used for the terminal to determine whether the detected cell signal quality corresponding to the first BWP is greater than the second threshold.
11. The method of claim 10, wherein said sending a respective threshold on the first BWP comprises:
Broadcasting a corresponding threshold on the first BWP via a broadcast message.
12. A random access apparatus, comprising:
a determining unit, configured to determine, by using the first information, a frequency point of a second BWP when the terminal determines that the random access process is not performed on the first BWP;
an access unit, configured to perform a random access process on the second BWP based on the frequency point of the second BWP; wherein,
the terminal receiving the first information on the first BWP; the network device repeatedly broadcasts the second information on the first BWP; the second information is SSB in a coverage hole direction on the second BWP.
13. An apparatus for configuring random access, comprising:
a first transmitting unit for transmitting first information on a first BWP; the first information is used for the terminal to determine a frequency point of a second BWP, so that a random access process is performed on the second BWP based on the frequency point of the second BWP under the condition that the random access process is not performed on the first BWP;
a broadcasting unit, configured to repeatedly broadcast second information on a first BWP, where the second information is an SSB in a coverage hole direction on a second BWP.
14. A terminal, comprising: a first processor and a first communication interface; wherein,
the first processor is configured to, when the terminal determines that the random access process is not performed on the first BWP, determine a frequency point of a second BWP by using the first information, and perform the random access process on the second BWP through the first communication interface based on the frequency point of the second BWP; wherein,
the first communication interface to receive the first information on the first BWP; the network device repeatedly broadcasts the second information on the first BWP; the second information is SSB in a coverage hole direction on the second BWP.
15. A network device, comprising: a second processor and a second communication interface;
the second communication interface is used for sending first information on a first BWP; the first information is used for the terminal to determine a frequency point of a second BWP, so that a random access process is performed on the second BWP based on the frequency point of the second BWP under the condition that the random access process is not performed on the first BWP; wherein,
the second communication interface is further configured to repeatedly broadcast second information on the first BWP, where the second information is SSB in the coverage hole direction on the second BWP.
16. A terminal, comprising: a first processor and a first memory for storing a computer program capable of running on the processor,
wherein the first processor is adapted to perform the steps of the method of any one of claims 1 to 6 when running the computer program.
17. A network device, comprising: a second processor and a second memory for storing a computer program capable of running on the processor,
wherein the second processor is adapted to perform the steps of the method of any of claims 7 to 11 when running the computer program.
18. A storage medium having stored thereon a computer program for performing the steps of the method of any one of claims 1 to 6 or for performing the steps of the method of any one of claims 7 to 11 when executed by a processor.
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