CN110708726B - Random access resource using method, network side equipment and user terminal - Google Patents
Random access resource using method, network side equipment and user terminal Download PDFInfo
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- CN110708726B CN110708726B CN201810750587.6A CN201810750587A CN110708726B CN 110708726 B CN110708726 B CN 110708726B CN 201810750587 A CN201810750587 A CN 201810750587A CN 110708726 B CN110708726 B CN 110708726B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access, e.g. scheduled or random access
- H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
- H04W74/0833—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure
Abstract
The invention provides a random access resource using method, network side equipment and a user terminal, and belongs to the technical field of wireless communication. The random access resource using method applied to the user terminal comprises the following steps: and when the detected quality of the wave beam corresponding to the public random access resource exceeds a preset quality threshold, initiating random access by using the public random access resource. The technical scheme of the invention can accelerate the access process of the UE in the target cell.
Description
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to a method for using random access resources, a network side device, and a user terminal.
Background
In the handover process of a 5G NR (New Radio, New air interface) system, a target base station may configure, in a handover command, a dedicated resource and/or a common resource used by initiating a random access at the target base station and a quality threshold of a beam used by initiating the random access for a UE (User Equipment). If the quality of the beam corresponding to the dedicated resource of the UE is higher than the threshold requirement, the UE should preferentially use the dedicated resource and cannot use the common resource, that is, the UE preferentially uses the beam corresponding to the dedicated random access resource which is not lower than the quality threshold to initiate random access.
In the future, the 5G system often works in a high frequency band, the beam quality is unstable, the order in which the beams corresponding to the dedicated random access resource and the common random access resource reach the UE is uncertain, and if the UE always waits for the beam corresponding to the dedicated random access resource, the beam corresponding to the common random access resource with better quality is likely to be missed, thereby causing a longer random access process time of the UE in a target cell.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a method for using random access resources, a network side device and a user terminal, which can accelerate the access process of a UE in a target cell.
To solve the above technical problem, embodiments of the present invention provide the following technical solutions:
in one aspect, a method for using random access resources is provided, and is applied to a network side device, and the method includes:
and sending a switching command to the user terminal, wherein the switching command carries the quality threshold of the wave beam corresponding to the public random access resource.
Further, the quality threshold is at least one of:
a Reference Signal Received Power (RSRP) threshold;
a Reference Signal Received Quality (RSRQ) threshold;
a signal to interference plus noise ratio SINR threshold.
The embodiment of the invention also provides a random access resource using method, which is applied to the user terminal and comprises the following steps:
and when the detected quality of the wave beam corresponding to the public random access resource exceeds a preset quality threshold, initiating random access by using the public random access resource.
Further, the method further comprises:
and receiving a switching command sent by network side equipment, wherein the switching command carries the quality threshold.
Further, the quality threshold is at least one of:
a Reference Signal Received Power (RSRP) threshold;
a Reference Signal Received Quality (RSRQ) threshold;
a signal to interference plus noise ratio SINR threshold.
The embodiment of the invention also provides a random access resource using method, which is applied to network side equipment and comprises the following steps:
and sending a switching command to the user terminal, wherein the switching command carries the time length of preferentially using the special random access resource.
The embodiment of the invention also provides a random access resource using method, which is applied to the user terminal and comprises the following steps:
when a wave beam corresponding to the special random access resource meeting the use condition exists in a preset time length, initiating random access by using the special random access resource corresponding to the wave beam meeting the use condition; when the wave beam corresponding to the special random access resource meeting the use condition does not exist, initiating random access by using the public random access resource corresponding to the wave beam meeting the use condition;
and outside the preset time length, initiating random access by using the public random access resource corresponding to the beam meeting the use condition.
Further, the method further comprises:
and receiving a switching command sent by network side equipment, wherein the switching command carries the time length.
Further, the initiating random access by using the dedicated random access resource corresponding to the beam meeting the use condition includes:
sequencing the special random access resources corresponding to the beams meeting the use conditions according to a preset sequence; or the beams meeting the use condition are sequenced from good to bad according to the quality of the beams;
and sequentially initiating random access by using the special random access resources corresponding to the beams meeting the use conditions according to the sequence.
Further, the initiating random access by using the common random access resource corresponding to the beam meeting the use condition includes:
sequencing the public random access resources corresponding to the beams meeting the use conditions according to a preset sequence; or the beams meeting the use condition are sequenced from good to bad according to the quality of the beams;
and sequentially initiating random access by using the public random access resources corresponding to the beams meeting the use conditions according to the sequence.
The embodiment of the invention also provides a network side device, which comprises a processor and a transceiver,
the transceiver is used for sending a switching command to the user terminal, wherein the switching command carries the quality threshold of the wave beam corresponding to the public random access resource.
Further, the quality threshold is at least one of:
a Reference Signal Received Power (RSRP) threshold;
a Reference Signal Received Quality (RSRQ) threshold;
a signal to interference plus noise ratio SINR threshold.
The embodiment of the invention also provides a user terminal, which comprises a processor and a transceiver,
the processor is configured to initiate random access using the public random access resource when the detected quality of the beam corresponding to the public random access resource exceeds a preset quality threshold.
Further, the transceiver is configured to receive a handover command sent by a network side device, where the handover command carries the quality threshold.
Further, the quality threshold is at least one of:
a Reference Signal Received Power (RSRP) threshold;
a Reference Signal Received Quality (RSRQ) threshold;
a signal to interference plus noise ratio SINR threshold.
The embodiment of the invention also provides a network side device, which comprises a processor and a transceiver,
the transceiver is used for sending a switching command to the user terminal, wherein the switching command carries the time length of preferentially using the special random access resource.
The embodiment of the invention also provides a user terminal, which comprises a processor and a transceiver,
the processor is used for initiating random access by using the special random access resource corresponding to the beam meeting the use condition when the beam corresponding to the special random access resource meeting the use condition exists in the preset time length; when the wave beam corresponding to the special random access resource meeting the use condition does not exist, initiating random access by using the public random access resource corresponding to the wave beam meeting the use condition;
and outside the preset time length, initiating random access by using the public random access resource corresponding to the beam meeting the use condition.
Further, the transceiver is configured to receive a handover command sent by a network side device, where the handover command carries the time length.
Further, the processor is specifically configured to rank, according to a preset order, the dedicated random access resources corresponding to the beams that satisfy the use condition; or the beams meeting the use condition are sequenced from good to bad according to the quality of the beams;
and initiating random access by using the special random access resources corresponding to the beams meeting the use conditions according to the sequence.
Further, the processor is specifically configured to sort, according to a preset order, the common random access resources corresponding to the beams that satisfy the use condition; or the beams meeting the use condition are sequenced from good to bad according to the quality of the beams;
and sequentially initiating random access by using the public random access resources corresponding to the beams meeting the use conditions according to the sequence.
The embodiment of the invention also provides network side equipment, which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor; the processor, when executing the program, implements the random access resource usage method as described above.
The embodiment of the invention also provides a user terminal, which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor; the processor, when executing the program, implements the random access resource usage method as described above.
An 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, implements the steps in the random access resource using method as described above.
The embodiment of the invention has the following beneficial effects:
in the above scheme, a method for using random access resources is provided, so that a user terminal can also use public random access resources to initiate random access under a specific condition, thereby avoiding missing beams corresponding to the public random access resources with better quality in the process of waiting for beams corresponding to dedicated random access resources, and accelerating the access process of the UE in the target cell.
Drawings
Fig. 1 and fig. 3 are schematic flow charts of methods for using random access resources, which are applied to a network side device according to an embodiment of the present invention;
fig. 2 and fig. 4 are schematic flow charts of methods for using random access resources applied to a user equipment according to embodiments of the present invention;
fig. 5 is a schematic structural diagram of a network-side device according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a user terminal according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved by the embodiments of the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
The embodiment of the invention provides a random access resource using method, network side equipment and a user terminal, which can accelerate the access process of UE in a target cell.
An embodiment of the present invention provides a method for using random access resources, which is applied to a network side device, and as shown in fig. 1, the method includes:
step 101: and sending a switching command to the user terminal, wherein the switching command carries the quality threshold of the wave beam corresponding to the public random access resource.
Further, the quality threshold is at least one of:
RSRP (Reference Signal Receiving Power) threshold;
RSRQ (Reference Signal Receiving Quality) threshold;
SINR (Signal to Interference plus Noise Ratio) threshold.
A network side device, such as a target base station, may configure corresponding thresholds for one or more of the quality, RSRP, RSRQ, and SINR.
An embodiment of the present invention further provides a method for using random access resources, which is applied to a user terminal, and as shown in fig. 2, the method includes:
step 201: and when the detected quality of the wave beam corresponding to the public random access resource exceeds a preset quality threshold, initiating random access by using the public random access resource.
If the quality of beam corresponding to the public random access resource detected by the UE exceeds the threshold, the public random access resource corresponding to the beam can be directly used for initiating a contention-based random access process without considering whether a dedicated random access resource is available.
In this embodiment, a method for using random access resources is provided, so that a user terminal may also use a public random access resource to initiate random access under a specific condition, so as to avoid missing a beam corresponding to the public random access resource with better quality in a process of waiting for a beam corresponding to a dedicated random access resource, and accelerate an access process of a UE in a target cell.
Further, the method further comprises:
and receiving a switching command sent by network side equipment, wherein the switching command carries the quality threshold.
Further, the quality threshold is at least one of:
an RSRP threshold;
an RSRQ threshold;
and (4) an SINR threshold.
An embodiment of the present invention further provides a method for using random access resources, which is applied to a network side device, and as shown in fig. 3, the method includes:
step 301: and sending a switching command to the user terminal, wherein the switching command carries the time length of preferentially using the special random access resource.
An embodiment of the present invention further provides a method for using random access resources, which is applied to a user terminal, and as shown in fig. 4, the method includes:
step 401: when a wave beam corresponding to the special random access resource meeting the use condition exists in a preset time length, initiating random access by using the special random access resource corresponding to the wave beam meeting the use condition; when the wave beam corresponding to the special random access resource meeting the use condition does not exist, initiating random access by using the public random access resource corresponding to the wave beam meeting the use condition;
and outside the preset time length, initiating random access by using the public random access resource corresponding to the beam meeting the use condition.
In this embodiment, a method for using random access resources is provided, so that a user terminal may also use a public random access resource to initiate random access under a specific condition, so as to avoid missing a beam corresponding to the public random access resource with better quality in a process of waiting for a beam corresponding to a dedicated random access resource, and accelerate an access process of a UE in a target cell.
Further, the method further comprises:
and receiving a switching command sent by network side equipment, wherein the switching command carries the time length.
Further, the initiating random access by using the dedicated random access resource corresponding to the beam meeting the use condition includes:
sequencing the special random access resources corresponding to the beams meeting the use conditions according to a preset sequence; or the beams meeting the use condition are sequenced from good to bad according to the quality of the beams;
and sequentially initiating random access by using the special random access resources corresponding to the beams meeting the use conditions according to the sequence.
Further, the initiating random access by using the common random access resource corresponding to the beam meeting the use condition includes:
sequencing the public random access resources corresponding to the beams meeting the use conditions according to a preset sequence; or the beams meeting the use condition are sequenced from good to bad according to the quality of the beams;
and sequentially initiating random access by using the public random access resources corresponding to the beams meeting the use conditions according to the sequence.
Specifically, the network side device, such as the target base station, carries a time length T for preferentially using the dedicated random access resource in the handover command, and after receiving T, the UE:
A. the UE preferentially uses the beam corresponding to the special random access resource meeting the threshold requirement at the time or before the expiration of the timer;
specifically, the order in which the UE uses the dedicated random access resources is set in advance by the UE, or may be sorted from good to bad according to the quality of the received beam.
If the UE has tried all dedicated random access resources before the timer expires, then random access may be initiated using the common random access resources that meet the threshold requirement (if the network is configured); or sequentially trying the beams of the common random access resource from good to bad according to the quality of the beams.
B. After the time or the timer expires, whether the beam of the special random access resource meeting the threshold requirement exists or not, the public random access resource can be used for initiating random access;
if the network side is configured with a beam quality threshold of the public random access resource, the UE tries to use beams meeting the threshold requirement, and the sequence is set in advance by the UE or tries in sequence from good to bad according to the beam quality;
if the network side does not configure the beam quality threshold of the public random access resource, the UE tries the beams of the public random access resource in sequence according to the quality of the beams from good to bad or in a sequence set in advance by the UE.
An embodiment of the present invention further provides a network-side device, as shown in fig. 5, including a processor 51 and a transceiver 52,
the transceiver 52 is configured to send a handover command to the user equipment, where the handover command carries a quality threshold of a beam corresponding to the common random access resource.
Further, the quality threshold is at least one of:
an RSRP threshold;
an RSRQ threshold;
and (4) an SINR threshold.
An embodiment of the present invention further provides a user terminal, as shown in fig. 6, including a processor 61 and a transceiver 62,
the processor 61 is configured to initiate random access using the public random access resource when the detected quality of the beam corresponding to the public random access resource exceeds a preset quality threshold.
In this embodiment, a method for using random access resources is provided, so that a user terminal may also use a public random access resource to initiate random access under a specific condition, so as to avoid missing a beam corresponding to the public random access resource with better quality in a process of waiting for a beam corresponding to a dedicated random access resource, and accelerate an access process of a UE in a target cell.
Further, the transceiver 62 is configured to receive a handover command sent by a network side device, where the handover command carries the quality threshold.
Further, the quality threshold is at least one of:
an RSRP threshold;
an RSRQ threshold;
and (4) an SINR threshold.
An embodiment of the present invention further provides a network-side device, as shown in fig. 5, including a processor 51 and a transceiver 52,
the transceiver 52 is configured to send a handover command to the ue, where the handover command carries a time length for preferentially using the dedicated random access resource.
An embodiment of the present invention further provides a user terminal, as shown in fig. 6, including a processor 61 and a transceiver 62,
the processor 61 is configured to initiate random access by using the dedicated random access resource corresponding to the beam meeting the use condition when the beam corresponding to the dedicated random access resource meeting the use condition exists within a preset time length; when the wave beam corresponding to the special random access resource meeting the use condition does not exist, initiating random access by using the public random access resource corresponding to the wave beam meeting the use condition;
and outside the preset time length, initiating random access by using the public random access resource corresponding to the beam meeting the use condition.
In this embodiment, a method for using random access resources is provided, so that a user terminal may also use a public random access resource to initiate random access under a specific condition, so as to avoid missing a beam corresponding to the public random access resource with better quality in a process of waiting for a beam corresponding to a dedicated random access resource, and accelerate an access process of a UE in a target cell.
Further, the transceiver 62 is configured to receive a handover command sent by a network side device, where the handover command carries the time length.
Further, the processor 61 is specifically configured to rank, according to a preset order, the dedicated random access resources corresponding to the beams that satisfy the use condition; or the beams meeting the use condition are sequenced from good to bad according to the quality of the beams;
and sequentially initiating random access by using the special random access resources corresponding to the beams meeting the use conditions according to the sequence.
Further, the processor 61 is specifically configured to rank, according to a preset order, the common random access resources corresponding to the beams that satisfy the use condition; or the beams meeting the use condition are sequenced from good to bad according to the quality of the beams;
and sequentially initiating random access by using the public random access resources corresponding to the beams meeting the use conditions according to the sequence.
The embodiment of the invention also provides network side equipment, which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor; the processor, when executing the program, implements the random access resource usage method as described above.
The embodiment of the invention also provides a user terminal, which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor; the processor, when executing the program, implements the random access resource usage method as described above.
An 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, implements the steps in the random access resource using method as described above.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (7)
1. A method for using random access resources is applied to a network side device, and the method comprises the following steps:
sending a switching command to a user terminal, wherein the switching command carries the time length of preferentially using the special random access resource;
the handover command indicates: when a wave beam corresponding to the special random access resource meeting the use condition exists in a preset time length, initiating random access by using the special random access resource corresponding to the wave beam meeting the use condition; when the wave beam corresponding to the special random access resource meeting the use condition does not exist, initiating random access by using the public random access resource corresponding to the wave beam meeting the use condition; outside the preset time length, initiating random access by using a public random access resource corresponding to the wave beam meeting the use condition;
wherein the initiating random access by using the dedicated random access resource corresponding to the beam meeting the use condition comprises:
sequencing the special random access resources corresponding to the beams meeting the use conditions according to a preset sequence; or the beams meeting the use condition are sequenced from good to bad according to the quality of the beams; sequentially initiating random access by using the special random access resources corresponding to the beams meeting the use conditions according to the sequence;
the initiating random access by using the common random access resource corresponding to the beam meeting the use condition comprises:
sequencing the public random access resources corresponding to the beams meeting the use conditions according to a preset sequence; or the beams meeting the use condition are sequenced from good to bad according to the quality of the beams; and sequentially initiating random access by using the public random access resources corresponding to the beams meeting the use conditions according to the sequence.
2. A method for using random access resources, applied to a user terminal, the method comprising:
receiving a switching command sent by network side equipment, wherein the switching command carries a time length for preferentially using a special random access resource;
initiating random access according to the switching command;
the initiating random access according to the handover command comprises:
when a wave beam corresponding to the special random access resource meeting the use condition exists in a preset time length, initiating random access by using the special random access resource corresponding to the wave beam meeting the use condition; when the wave beam corresponding to the special random access resource meeting the use condition does not exist, initiating random access by using the public random access resource corresponding to the wave beam meeting the use condition;
outside the preset time length, initiating random access by using a public random access resource corresponding to the wave beam meeting the use condition;
the initiating random access by using the dedicated random access resource corresponding to the beam meeting the use condition comprises:
sequencing the special random access resources corresponding to the beams meeting the use conditions according to a preset sequence; or the beams meeting the use condition are sequenced from good to bad according to the quality of the beams; sequentially initiating random access by using the special random access resources corresponding to the beams meeting the use conditions according to the sequence;
the initiating random access by using the common random access resource corresponding to the beam meeting the use condition comprises:
sequencing the public random access resources corresponding to the beams meeting the use conditions according to a preset sequence; or the beams meeting the use condition are sequenced from good to bad according to the quality of the beams; and sequentially initiating random access by using the public random access resources corresponding to the beams meeting the use conditions according to the sequence.
3. A network side device, comprising a processor and a transceiver,
the transceiver is used for sending a switching command to the user terminal, wherein the switching command carries the time length of preferentially using the special random access resource;
the handover command indicates: when a wave beam corresponding to the special random access resource meeting the use condition exists in a preset time length, initiating random access by using the special random access resource corresponding to the wave beam meeting the use condition; when the wave beam corresponding to the special random access resource meeting the use condition does not exist, initiating random access by using the public random access resource corresponding to the wave beam meeting the use condition; outside the preset time length, initiating random access by using a public random access resource corresponding to the wave beam meeting the use condition;
wherein the initiating random access by using the dedicated random access resource corresponding to the beam meeting the use condition comprises:
sequencing the special random access resources corresponding to the beams meeting the use conditions according to a preset sequence; or the beams meeting the use condition are sequenced from good to bad according to the quality of the beams; sequentially initiating random access by using the special random access resources corresponding to the beams meeting the use conditions according to the sequence;
the initiating random access by using the common random access resource corresponding to the beam meeting the use condition comprises:
sequencing the public random access resources corresponding to the beams meeting the use conditions according to a preset sequence; or the beams meeting the use condition are sequenced from good to bad according to the quality of the beams; and sequentially initiating random access by using the public random access resources corresponding to the beams meeting the use conditions according to the sequence.
4. A user terminal, comprising a processor and a transceiver,
the transceiver is used for receiving a switching command sent by network side equipment, and the switching command carries the time length of preferentially using the special random access resource;
the processor is used for initiating random access according to the switching command;
the processor is used for initiating random access by using the special random access resource corresponding to the beam meeting the use condition when the beam corresponding to the special random access resource meeting the use condition exists in the preset time length; when the wave beam corresponding to the special random access resource meeting the use condition does not exist, initiating random access by using the public random access resource corresponding to the wave beam meeting the use condition; outside the preset time length, initiating random access by using a public random access resource corresponding to the wave beam meeting the use condition;
the processor is specifically configured to rank, according to a preset order, the dedicated random access resources corresponding to the beams that satisfy the use condition; or the beams meeting the use condition are sequenced from good to bad according to the quality of the beams; initiating random access by using the special random access resources corresponding to the beams meeting the use conditions according to the sequence;
the processor is specifically configured to sort, according to a preset order, the common random access resources corresponding to the beams that satisfy the use condition; or the beams meeting the use condition are sequenced from good to bad according to the quality of the beams; and sequentially initiating random access by using the public random access resources corresponding to the beams meeting the use conditions according to the sequence.
5. A network-side device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor; wherein the processor, when executing the program, implements the method of random access resource usage of claim 1.
6. A user terminal comprising a memory, a processor and a computer program stored on the memory and executable on the processor; wherein the processor, when executing the program, implements the method of random access resource usage of claim 2.
7. A computer readable storage medium, having stored thereon a computer program, characterized in that the program, when being executed by a processor, carries out the steps in the method for random access resource usage according to any of the claims 1-2.
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