CN110392428A - The instruction of random access resource and acquisition methods, base station, terminal, readable medium - Google Patents
The instruction of random access resource and acquisition methods, base station, terminal, readable medium Download PDFInfo
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- CN110392428A CN110392428A CN201810345804.3A CN201810345804A CN110392428A CN 110392428 A CN110392428 A CN 110392428A CN 201810345804 A CN201810345804 A CN 201810345804A CN 110392428 A CN110392428 A CN 110392428A
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- 238000000034 method Methods 0.000 title claims abstract description 35
- 230000011664 signaling Effects 0.000 claims description 22
- 230000000977 initiatory effect Effects 0.000 claims description 6
- 238000013468 resource allocation Methods 0.000 claims description 6
- 241000208340 Araliaceae Species 0.000 claims description 3
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 claims description 3
- 235000003140 Panax quinquefolius Nutrition 0.000 claims description 3
- 235000008434 ginseng Nutrition 0.000 claims description 3
- 230000001052 transient effect Effects 0.000 claims 1
- 238000001228 spectrum Methods 0.000 description 14
- 230000004044 response Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 230000000737 periodic effect Effects 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000036963 noncompetitive effect Effects 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0866—Non-scheduled access, e.g. ALOHA using a dedicated channel for access
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Abstract
A kind of instruction of random access resource and acquisition methods, base station, terminal, readable medium, the indicating means of the random access resource comprises determining that idle channel, and generates random access resource configuration information according to the idle channel；The random access resource configuration information is indicated to user terminal by the scrambled DCI of public RNTI.Using above scheme, allow UE to be based on random access resource and access network, avoids the problem that random access resource caused by period instruction random access resource may be available.
Description
Technical field
The present embodiments relate to the instruction of the communications field more particularly to a kind of random access resource and acquisition methods, base
It stands, terminal, readable medium.
Background technique
In a wireless communication system, it when user terminal (User Equipment, UE) needs to access network, needs to initiate
Random access obtains uplink synchronous.UE in connected state is also required to initiate random access in certain scenes.For example, working as uplink
When step-out, if necessary to transmit upstream data, UE needs to send emulative random access (Contention based
Random Access Procedure)；When uplink loss, base station, can be by under physics if necessary to send data to UE
Row control signaling triggering UE executes emulative random access or noncompetitive random access.
In existing (New Radio, NR) agreement of newly eating dishes without rice or wine, base station indicates random access resource by system message,
Such as the available lead code etc. of the running time-frequency resource position, random access where random access, usual random access resource are periodical
Occur.When UE has the demand of access network, random access is initiated according to the random access resource of base station configuration.It is emulative with
The process of machine access includes the following steps: 1, UE random selection lead code (Preamble) and is sent to base station；2, base station is sent
Random access response is to UE；3, UE sends message 3 (MSG3) according to the ascending resource for including in random access response, when UE is initial
When accessing network, MSG3 includes RRC connection request；When UE implements to switch, MSG3 is complete comprising the switching sent to target BS
At；4, base station sends contention resolved, shows the success of UE random access.Noncompetitive random access is used for the UE of connected state,
Preamble distributes to UE by signaling by base station in advance.UE will not be generated by the random access that the Preamble of distribution is executed
Conflict, the Preamble that base station receives UE transmission send random access response later, this random access procedure terminates.
In practical applications, NR network is generally deployed in license (licensed) frequency spectrum that operator possesses, but due to
Frequency spectrum resource is very rare, therefore at networking initial stage, and operator can make full use of the bandwidth of unlicensed (unlicensed) frequency spectrum.
For example, base station can be monitored by listem-before-talk (Listen Before Talk, LBT) mechanism before using 5GHz frequency spectrum
Some frequency band, the frequency band are that WLAN (Wireless Local Area Networks, WLAN) and other operators can
The NR signal that can be disposed is shared, if detecting the frequency band free time, the frequency band can be used as transmission channel and carry out letter
Enable the transmission with data.It using a period of time, such as after 8ms, needs to discharge the frequency spectrum resource, then monitors again under obtaining
The right to use of frequency spectrum.
When NR network is deployed in unlicensed frequency spectrum, due to base station obtain the idle channel right to use opportunity be can not
Know in advance, i.e., cannot obtain the right to use of channel, therefore the periodicity that base station is indicated by system message in the preset time
Random access resource may be available.When the random access resource of system message instruction may be available, UE can not be obtained
Random access resource accesses network, so that influence NR network is successfully accessed rate.
Summary of the invention
The technical issues of embodiment of the present invention solves is how unlicensed frequency spectrum is provided for UE instruction random access
Source allows UE to be based on random access resource and accesses network.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of indicating means of random access resource, the side
Method comprises determining that idle channel, and generates random access resource configuration information according to the idle channel；Added by public RNTI
The DCI disturbed indicates the random access resource configuration information to user terminal.
Optionally, the random access resource configuration information includes: the occupied time interval resource configuration information of random access
With the occupied frequency resource configuration information of random access.
Optionally, described to indicate that the random access resource configuration information includes: to pass through by the scrambled DCI of public RNTI
The public scrambled DCI of RNTI indicates the occupied running time-frequency resource position of random access resource configuration information；Based on it is described with
The occupied running time-frequency resource position of machine access-in resource configuration information indicates the random access resource configuration information by PDSCH.
Optionally, the scrambled DCI of public RNTI is also indicated: user terminal initiates the phase that LBT is executed when random access
Close parameter configuration.
Optionally, the relevant parameter of the LBT includes: the duration of LBT monitor channel.
Optionally, the random access resource configuration information includes: random access relevant parameter configuration index and random
Access occupied time interval resource configuration information.
Optionally, described to indicate also to wrap before the random access resource configuration information by the scrambled DCI of public RNTI
It includes: the relevant parameter configuration of the random access is indicated by system message.
Optionally, the relevant parameter of the random access comprises at least one of the following: the frequency domain position of random access, random
It accesses the maximum retransmission of workable Preamble, Preamble, send power.
Optionally, described to indicate also to wrap before the random access resource configuration information by the scrambled DCI of public RNTI
It includes: the public RNTI is indicated to the user terminal by system message or RRC signaling.
The embodiment of the present invention provides a kind of acquisition methods of random access resource, comprising: it is scrambled to receive public RNTI
DCI；Random access resource configuration information is obtained by the public scrambled DCI of RNTI.
Optionally, the random access resource configuration information includes: the occupied time interval resource configuration information of random access
With the occupied frequency resource configuration information of random access.
It is optionally, described that obtain random access resource configuration information by the scrambled DCI of the public RNTI include: to pass through
The scrambled DCI of public RNTI obtains the occupied running time-frequency resource position of random access resource configuration information；Based on institute
The occupied running time-frequency resource position of random access resource is stated, the random access resource configuration information is obtained by PDSCH.
Optionally, the acquisition methods of the random access resource further include: obtained by the public scrambled DCI of RNTI
Initiate the relevant parameter configuration information that LBT is executed when random access.
Optionally, the relevant parameter of the LBT includes: the duration of LBT monitor channel.
Optionally, the random access resource configuration information includes: random access relevant parameter configuration index and random
Access occupied time interval resource configuration information.
Optionally, before the random access resource configuration information by the public RNTI scrambled DCI acquisition
Further include: receive system message；The relevant parameter configuration of the random access is obtained by the system message.
Optionally, the relevant parameter of the random access comprises at least one of the following: the frequency domain position of random access, random
It accesses the maximum retransmission of workable Preamble, Preamble, send power.
Optionally, before the public scrambled DCI of RNTI of reception further include: receive system message；Pass through the system
Message obtains the public RNTI.
Optionally, before the public scrambled DCI of RNTI of reception further include: receive RRC signaling；Believed by the RRC
It enables and obtains the public RNTI.
The embodiment of the present invention provides a kind of base station, comprising: determination unit is adapted to determine that idle channel, and according to the sky
Idle channel generates random access resource configuration information；First indicating unit is suitable for whole to user by the scrambled DCI of public RNTI
End indicates the random access resource configuration information.
Optionally, the random access resource configuration information includes: the occupied time interval resource configuration information of random access
With the occupied frequency resource configuration information of random access.
Optionally, first indicating unit includes: the first instruction subelement, is suitable for passing through the scrambled DCI of public RNTI
Indicate the occupied running time-frequency resource position of the random access resource configuration information；Second instruction subelement, is suitable for based on described
The occupied running time-frequency resource position of random access resource configuration information indicates the random access resource with confidence by PDSCH
Breath.
Optionally, first indicating unit, be further adapted for initiating by the scrambled DCI indicating user terminal of public RNTI with
The relevant parameter configuration information of LBT is executed when machine accesses.
Optionally, the relevant parameter of the LBT includes: the duration of LBT monitor channel.
Optionally, the random access resource configuration information includes: random access relevant parameter configuration index and random
Access occupied time interval resource configuration information.
Optionally, the base station further include: the second indicating unit, suitable for indicating the random access phase by system message
The parameter configuration of pass.
Optionally, the relevant parameter of the random access comprises at least one of the following: the frequency domain position of random access, random
It accesses the maximum retransmission of workable Preamble, Preamble, send power.
Optionally, the base station further include: third indicating unit is suitable for through system message or RRC signaling to described
User terminal indicates the public RNTI.
The embodiment of the present invention provides a kind of terminal, comprising: the first receiving unit is suitable for receiving the public scrambled DCI of RNTI；
First acquisition unit is suitable for obtaining random access resource configuration information by the public scrambled DCI of RNTI.
Optionally, the random access resource configuration information includes: the occupied time interval resource configuration information of random access
With the occupied frequency resource configuration information of random access.
Optionally, the random access resource further include: Preamble configuration information workable for random access or with
The Preamble configuration information that machine access barred uses.
Optionally, the first acquisition unit includes: the first acquisition subelement, is suitable for scrambled by the public RNTI
DCI obtains the occupied running time-frequency resource position of random access resource configuration information；Second obtains subelement, is suitable for being based on institute
The occupied running time-frequency resource position of random access resource is stated, the random access resource configuration information is obtained by PDSCH.
Optionally, the first acquisition unit is further adapted for obtaining by the public scrambled DCI of RNTI and initiates to connect at random
The fashionable relevant parameter configuration information for executing LBT.
Optionally, the relevant parameter of the LBT includes: the duration of LBT monitor channel.
Optionally, the random access resource configuration information includes: random access relevant parameter configuration index and random
Access occupied time interval resource configuration information.
Optionally, the terminal further include: the second receiving unit is suitable for receiving system message；Second acquisition unit is suitable for
The relevant parameter configuration of the random access is obtained by the system message.
Optionally, the relevant parameter of the random access comprises at least one of the following: the frequency domain position of random access, random
It accesses the maximum retransmission of workable Preamble, Preamble, send power.
Optionally, the terminal further include: the second receiving unit is suitable for receiving system message；Third acquiring unit, is suitable for
The public RNTI is obtained by the system message.
Optionally, the terminal further include: third receiving unit is suitable for receiving RRC signaling；4th acquiring unit, is suitable for
The public RNTI is obtained by the RRC signaling.
The embodiment of the present invention provides a kind of computer readable storage medium, and computer readable storage medium is non-volatile deposits
Storage media or non-transitory storage media, are stored thereon with computer instruction, and the computer instruction executes any of the above-described when running
The step of acquisition methods of the indicating means of the random access resource or any random access resource.
The embodiment of the present invention provides a kind of base station, including memory and processor, and being stored on the memory can be in institute
The computer instruction run on processor is stated, the processor executes any of the above-described described random when running the computer instruction
The step of indicating means of access-in resource.
The embodiment of the present invention provides a kind of terminal, including memory and processor, and being stored on the memory can be in institute
The computer instruction run on processor is stated, the processor executes any of the above-described described random when running the computer instruction
The step of acquisition methods of access-in resource.
Compared with prior art, the technical solution of the embodiment of the present invention has the advantages that
The embodiment of the present invention first by determining idle channel, generates unlicensed frequency spectrum according to idle channel
Random access resource configuration information, then by the scrambled DCI of public RNTI to user terminal dynamic instruction random access resource
Configuration information allows UE to be based on random access resource and accesses network, avoids periodic random access resource due to cannot
The problem of obtaining the channel right to use and not being available.
Further, the relevant parameter configuration of random access is indicated by system message, it is then scrambled by public RNTI
The random access resource configuration information that DCI is indicated to user terminal only include random access relevant parameter configuration index and
The occupied time interval resource configuration information of random access, can effectively reduce the number of bits of DCI.
Detailed description of the invention
Fig. 1 is a kind of flow chart of the indicating means of random access resource provided in an embodiment of the present invention；
Fig. 2 is a kind of flow chart of the acquisition methods of random access resource provided in an embodiment of the present invention；
Fig. 3 is a kind of structural schematic diagram of base station provided in an embodiment of the present invention；
Fig. 4 is a kind of structural schematic diagram of terminal provided in an embodiment of the present invention.
Specific embodiment
In existing realization, when NR network is deployed in unlicensed frequency spectrum, make since base station obtains idle channel
It can not be known in advance with the opportunity of power, i.e., cannot be in the right to use of acquisition of preset time channel, therefore base station passes through system
Message indicates that periodic random access resource may be available.When random access resource possibly of system message instruction can not
In use, UE can not obtain random access resource access network, so that influence NR network is successfully accessed rate.For example, system disappears
There are random access resources in the 1ms in the period of 5ms for breath instruction, but if base station is the of the period every 5ms
1ms can not obtain the right to use of channel always, will result in that random access resource is unavailable always, and UE can not access network.
The embodiment of the present invention is for unlicensed frequency spectrum, first by determining that idle channel, that is, channel is idle, root
Random access resource configuration information is generated according to idle channel, is then dynamically referred to by the scrambled DCI of public RNTI to user terminal
Show random access resource configuration information, allows UE to be based on random access resource configuration information and access network, avoid periodicity
Random access resource due to the problem of cannot obtaining the channel right to use and not being available.
It is understandable to enable above-mentioned purpose of the invention, feature and beneficial effect to become apparent, with reference to the accompanying drawing to this
The specific embodiment of invention is described in detail.
It may include walking as follows the embodiment of the invention provides a kind of indicating means of random access resource referring to Fig. 1
It is rapid:
Step S101 determines idle channel, and generates random access resource configuration information according to the idle channel.
In specific implementation, base station can be deployed in unlicensed frequency spectrum (being referred to as frequency band) and send system message
With paging message etc..When base station deployment is in unlicensed frequency spectrum, the opportunity due to obtaining the idle channel right to use is can not
To know in advance, base station indicates that periodic random access resource may be available by system message, therefore firstly the need of true
Determine idle channel, random access resource configuration information is then generated according to the idle channel.
In specific implementation, base station can monitor by LBT mechanism and determine idle channel.For example, base station passes through
LBT mechanism is monitored and determines idle channel are as follows: the 4ms that time slot n starts, when group intercarrier is divided into 15kHz, and each time slot
Length is 1ms, and base station determines idle channel are as follows: the channel of time slot n to time slot n+3.Free time letter can be used continuously in base station
The duration in road is determined by priority, the maximum time of portfolio and national regulation for needing to transmit etc. of business, such as Japan
Regulation maximum time is 4ms, and other countries can be 8ms or 10ms.Base station is determined to UE data volume transmitted etc. as needed
The duration using channel is needed, as this uses 4ms；3ms may be used next time.Base station according to obtain channel duration and
This random access resource configuration information is arranged in the time interval etc. of the last random access resource of distance, as certain obtains channel
The when a length of 10ms used, base station can be in two time slot configuration random access resources.
In specific implementation, base station can generate random access resource configuration information according to the idle channel.For example, working as
When base station determines that idle channel is the channel of time slot n to time slot n+3, it can indicate that the time slot of random access is time slot n+2.
Step S102 indicates the random access resource configuration information to user terminal by the scrambled DCI of public RNTI.
In specific implementation, public wireless network temporary identifier (Radio Network Temporary can be passed through
Identity, RNTI) scrambled Downlink Control Information (Downlink Control Information, DCI) is to user terminal
The random access resource configuration information is indicated, so that all or part of user terminal in cell can be public by parsing
The total scrambled DCI of RNTI is to obtain the instruction random access resource configuration information.For example, base station is searched public in time slot n
Rope space indicates random access resource configuration by all or part of user terminal of the scrambled DCI of public RNTI into cell
Information.
In specific implementation, the public RNTI can also be directed to for all user terminals setting in cell
Certain customers' terminal setting in cell.For example, base station can distribute different public RNTI for different user terminal groups.
It in specific implementation, can when a public RNTI is arranged to certain customers' terminal in connected state in base station
It is described public to be indicated by wireless heterogeneous networks (Radio Resource Control, RRC) signaling to certain customers' terminal
RNTI, the public RNTI described at this time are shared by this certain customers' terminal.
In specific implementation, when a public RNTI is arranged to all user terminals in cell in base station, Ke Yitong
It crosses all user terminals of the system message into cell and indicates the public RNTI.
In an embodiment of the present invention, described to be connect at random by the scrambled DCI of public RNTI to user terminal instruction is described
Before entering public RNTI described in resource allocation information, it can be indicated by system message or RRC signaling to the user terminal
The public RNTI, so that user terminal can normally receive the scrambled DCI of public RNTI.
In specific implementation, public RNTI can also fix a public RNTI by way of making an appointment.
In specific implementation, the scrambled DCI of public RNTI can directly indicate the random access resource with confidence
It ceases, i.e., the content in the described scrambled DCI of public RNTI includes the random access resource configuration information, can also be indicated indirectly
The random access resource configuration information.
In an embodiment of the present invention, the random access resource of the scrambled DCI instruction of the public RNTI matches confidence
Breath may include: the occupied time interval resource configuration information of random access and the occupied frequency resource of random access with confidence
Breath.For example, the scrambled DCI instruction occupied time interval resource of random access of public RNTI is time slot n+2.
In an embodiment of the present invention, the random access resource of the scrambled DCI instruction of the public RNTI matches confidence
Breath can also include: that the Preamble that Preamble configuration information or random access are forbidden to use workable for random access matches
Confidence breath.
In an embodiment of the present invention, the random access resource of the scrambled DCI instruction of the public RNTI matches confidence
Breath may include: to indicate the occupied running time-frequency resource of random access resource configuration information by the scrambled DCI of public RNTI
Position；Based on the occupied running time-frequency resource position of the random access resource configuration information, channel is shared by downlink physical
(Physical Downlink Shared Channel, PDSCH) indicates the random access resource configuration information, that is, passes through
Random access resource configuration information described in PDSCH transmission.
In specific implementation, when user terminal obtains random access resource configuration information by the scrambled DCI of public RNTI
Later, if the user terminal has random access demand, the access slot according to instruction is needed, such as select in time slot n+2
Preamble initiates random access.Before initiating random access, user terminal needs to be implemented LBT.Due to executing the ginseng of LBT
Number configuration is different, for example, it is desired to the time span of monitor channel can be different, therefore in instruction random access resource configuration information
It can also indicate that the relevant parameter configuration that LBT is needed to be implemented when user terminal initiates random access in the public scrambled DCI of RNTI
Information.
In an embodiment of the present invention, the DCI is also indicated: user terminal initiates the correlation that LBT is executed when random access
Parameter configuration.
In an embodiment of the present invention, the relevant parameter of the LBT includes: the duration parameters of LBT monitor channel.
In specific implementation, after user terminal has sent Preamble, base station is monitored by LBT and obtains the channel right to use
The random access response sent later.If user terminal receives the random access response of base station transmission, channel is obtained by LBT
After the right to use, MSG3 is sent to base station according to the transfer resource of random access response instruction, and receive base station and obtain by LBT
The message 4 (MSG4) sent after the channel right to use is obtained, such user terminal just successfully completes random access.
In specific implementation, the bit number as required for random access resource configuration information is relatively more, in order to save DCI
Expense, the relevant parameter configuration of several possible random access can be indicated in advance in system message, for example, random access
Frequency domain position, the maximum retransmission of available Preamble, Preamble sends one or several kinds of parameters such as power and matches
Set, then by the scrambled DCI of public RNTI to user terminal indicate the relevant parameter configuration index of the random access and with
Machine accesses occupied time interval resource configuration information.
In an embodiment of the present invention, the random access indicated by the scrambled DCI of public RNTI to user terminal
Resource allocation information includes: the relevant parameter configuration index of random access and the occupied time interval resource of random access with confidence
Breath.
It is in specific implementation, described that indicated before the random access resource by the scrambled DCI of public RNTI can be with
It include: that the relevant parameter configuration of the random access is indicated by system message.
In an embodiment of the present invention, the relevant parameter of the random access comprises at least one of the following: random access
The maximum retransmission of Preamble, Preamble workable for frequency domain position, random access send power.
Indicate the relevant parameter configuration of random access by system message, then by the scrambled DCI of public RNTI to
The random access resource configuration information of family terminal instruction only includes the relevant parameter configuration index of random access and connects at random
Enter occupied time interval resource configuration information, the bit number of DCI can be effectively reduced.
Using above scheme, for unlicensed frequency spectrum, first by determining idle channel, generated according to idle channel
Random access resource configuration information, then by the scrambled DCI of public RNTI to user terminal dynamic instruction random access resource
Configuration information, allow user terminal be based on random access resource access network, avoid periodic random access resource by
The problem of random access resource caused by the channel right to use is not available cannot be obtained in LBT.
To better understand those skilled in the art and implementing the present invention, the embodiment of the invention also provides a kind of random
The acquisition methods of access-in resource, as shown in Figure 2.
Referring to fig. 2, the acquisition methods of the random access resource may include steps of:
Step S201 receives the scrambled DCI of public RNTI.
In specific implementation, since base station can be described random to user terminal instruction by the scrambled DCI of public RNTI
Access-in resource configuration information, so that all or part of user terminal in cell can be referred to by parsing public RNTI
Show the DCI of the random access resource configuration information.Therefore user terminal can by receive the scrambled DCI of public RNTI obtain with
Machine access-in resource configuration information.
In specific implementation, public RNTI can both be obtained by system message, can also by way of making an appointment,
A public RNTI is fixed, can also be obtained by RRC signaling.
In an embodiment of the present invention, when base station indicates the public RNTI by system message, the user terminal
Before receiving the public scrambled DCI of RNTI, further includes: receive system message, obtain public RNTI by the system message.
In an embodiment of the present invention, when base station indicates the public affairs to the user terminal in connected state by RRC signaling
When total RNTI, the user terminal is before receiving the public scrambled DCI of RNTI, further includes: receives RRC signaling；By described
RRC signaling obtains the public RNTI.
Step S202 obtains random access resource configuration information by the public scrambled DCI of RNTI.
In specific implementation, the scrambled DCI of public RNTI can also directly indicate the random access resource configuration
Information.
In an embodiment of the present invention, the random access resource configuration information may include: that random access is occupied
Time interval resource configuration information and the occupied frequency resource configuration information of random access.
In an embodiment of the present invention, the random access resource further include: Preamble workable for random access matches
The Preamble configuration information that confidence breath or random access are forbidden to use.
In specific implementation, the scrambled DCI of public RNTI can also indicate the random access resource configuration indirectly
Information.
In an embodiment of the present invention, described that random access resource configuration is obtained by the public scrambled DCI of RNTI
Information includes: to obtain the occupied time-frequency money of the random access resource configuration information by the public scrambled DCI of RNTI
Source position (the i.e. described random access resource configuration information is carried on the occupied running time-frequency resource)；It is connect at random based on described
Enter the occupied running time-frequency resource position of resource, the random access resource configuration information is obtained by PDSCH.
In specific implementation, when user terminal obtains random access resource configuration information by the scrambled DCI of public RNTI
Later, if the user terminal has random access demand, the access slot according to instruction, such as time slot n+2 selection are needed
Preamble initiates random access.Before initiating random access, user terminal needs to be implemented LBT.Due to executing the ginseng of LBT
Number configuration is different, for example, it is desired to the time span of monitor channel can be different, therefore in instruction random access resource configuration information
It can also indicate that the relevant parameter configuration that LBT is needed to be implemented when user terminal initiates random access in the public scrambled DCI of RNTI
Information.
In specific implementation, the acquisition methods of the random access resource further include: scrambled by the public RNTI
DCI obtains the relevant parameter configuration information that LBT is executed when initiating random access.
In an embodiment of the present invention, the relevant parameter of the LBT includes: the duration of LBT monitor channel.
In specific implementation, the duration of the LBT monitor channel can for 25us, 16us, an OFDM symbol length or
0us is equivalent, and the embodiment of the present invention does not constrain.
In specific implementation, the bit number as required for random access resource configuration information is relatively more, in order to save DCI
Expense, base station can indicate the relevant parameter configuration of several possible random access in advance in system message, then pass through
The public scrambled DCI of RNTI indicates the relevant parameter configuration index of the random access and the occupied time interval resource of random access
Configuration information.
In an embodiment of the present invention, the random access resource configuration information includes: that the relevant parameter of random access is matched
Set index and the occupied time interval resource configuration information of random access.
In specific implementation, described that the random access resource is obtained with confidence by the public scrambled DCI of RNTI
Before breath further include: receive system message；The relevant parameter configuration of the random access is obtained by the system message.
In an embodiment of the present invention, the relevant parameter of the random access comprises at least one of the following: random access
The maximum retransmission of Preamble, Preamble workable for frequency domain position, random access send power.
To better understand those skilled in the art and implementing the present invention, the embodiment of the invention also provides one kind can
Realize the base station of the indicating means of above-mentioned random access resource, as shown in Figure 3.
Referring to Fig. 3, the base station 30 may include: determination unit 31 and the first indicating unit 32, in which:
The determination unit 31 is adapted to determine that idle channel, and generates random access resource according to the idle channel and match
Confidence breath.
First indicating unit 32, suitable for being connect at random by the scrambled DCI of public RNTI to user terminal instruction is described
Enter resource allocation information.
In an embodiment of the present invention, the random access resource configuration information includes: the occupied time slot of random access
Resource allocation information and the occupied frequency resource configuration information of random access.
In specific implementation, first indicating unit 32 includes: the first instruction subelement (not shown) and the second instruction
Subelement (not shown), in which:
The first instruction subelement is suitable for indicating the random access resource configuration by the scrambled DCI of public RNTI
The occupied running time-frequency resource position of information.
The second instruction subelement, is suitable for being based on the occupied running time-frequency resource position of the random access resource configuration information
It sets, the random access resource configuration information is indicated by PDSCH.
In specific implementation, first indicating unit 32 is further adapted for indicating that user is whole by the scrambled DCI of public RNTI
Initiate the relevant parameter configuration information that LBT is executed when random access in end.
In an embodiment of the present invention, the relevant parameter of the LBT includes: the duration of LBT monitor channel.
In an embodiment of the present invention, the random access resource configuration information includes: that the relevant parameter of random access is matched
Set index and the occupied time interval resource configuration information of random access.
In specific implementation, the base station 30 further include: the second indicating unit (not shown), suitable for being referred to by system message
Show the relevant parameter configuration of the random access.
In an embodiment of the present invention, the relevant parameter of the random access comprises at least one of the following: random access
The maximum retransmission of Preamble, Preamble workable for frequency domain position, random access send power.
In specific implementation, the base station 30 further include: third indicating unit (not shown), be suitable for through system message or
Person's RRC signaling indicates the public RNTI to the user terminal.
In specific implementation, the workflow and principle of the base station 30 can be with reference to any provided in above-described embodiment
Description in the indicating means of the kind random access resource, details are not described herein again.
To better understand those skilled in the art and implementing the present invention, the embodiment of the invention also provides one kind can
Realize the terminal of the acquisition methods of above-mentioned random access resource, as shown in Figure 4.
Referring to fig. 4, the terminal 40 may include: the first receiving unit 41 and first acquisition unit 42, in which:
First receiving unit 41 is suitable for receiving the public scrambled DCI of RNTI.
The first acquisition unit 42 is suitable for obtaining random access resource configuration by the public scrambled DCI of RNTI
Information.
In an embodiment of the present invention, the random access resource configuration information includes: the occupied time slot of random access
Resource allocation information and the occupied frequency resource configuration information of random access.
In specific implementation, the first acquisition unit 42 may include: the first acquisition subelement (not shown) and second
Obtain subelement (not shown), in which:
Described first obtains subelement, is suitable for obtaining the random access resource by the public scrambled DCI of RNTI
The occupied running time-frequency resource position of configuration information.
Described second obtains subelement, is suitable for being based on the occupied running time-frequency resource position of the random access resource, pass through
PDSCH obtains the random access resource configuration information.
In specific implementation, the first acquisition unit 42 is further adapted for obtaining hair by the public scrambled DCI of RNTI
The relevant parameter configuration information of LBT is executed when playing random access.
In an embodiment of the present invention, the relevant parameter of the LBT includes: the duration of LBT monitor channel.
In an embodiment of the present invention, the random access resource configuration information includes: that the relevant parameter of random access is matched
Set index and the occupied time interval resource configuration information of random access.
In specific implementation, the terminal 40 further include: the second receiving unit (not shown) and second acquisition unit (do not show
Out), in which:
Second receiving unit is suitable for receiving system message.
The second acquisition unit is suitable for obtaining the relevant parameter configuration of the random access by the system message and believe
Breath.
In an embodiment of the present invention, the relevant parameter of the random access comprises at least one of the following: random access
The maximum retransmission of Preamble, Preamble workable for frequency domain position, random access send power.
In specific implementation, the terminal 40 further include: the second receiving unit (not shown) and third acquiring unit (are not shown
Out), in which:
Second receiving unit is suitable for receiving system message.
The third acquiring unit is suitable for obtaining the public RNTI by the system message.
In specific implementation, the terminal 40 further include: third receiving unit (not shown) and the 4th acquiring unit (are not shown
Out), in which:
The third receiving unit is suitable for receiving RRC signaling.
4th acquiring unit is suitable for obtaining the public RNTI by the RRC signaling.
In specific implementation, the workflow of the terminal 40 and principle can be with reference to any provided in above-described embodiment
Description in the acquisition methods of the kind random access resource, details are not described herein again.
The embodiment of the present invention provides a kind of computer readable storage medium, and computer readable storage medium is non-volatile deposits
Storage media or non-transitory storage media, are stored thereon with computer instruction, and the computer instruction executes any of the above-described when running
Step corresponding to the acquisition methods of the indicating means or random access resource of planting the random access resource, it is no longer superfluous herein
It states.
The embodiment of the present invention provides a kind of base station, including memory and processor, and being stored on the memory can be
The computer instruction run on the processor, the processor execute described in any of the above-described kind when running the computer instruction
Step corresponding to the indicating means of random access resource, details are not described herein again.
The embodiment of the present invention provides a kind of terminal, including memory and processor, and being stored on the memory can be
The computer instruction run on the processor, the processor execute described in any of the above-described kind when running the computer instruction
Step corresponding to the acquisition methods of random access resource, details are not described herein again.
Those of ordinary skill in the art will appreciate that all or part of the steps in the various methods of above-described embodiment is can
It is completed with instructing relevant hardware by program, which can be stored in a computer readable storage medium, storage
Medium may include: ROM, RAM, disk or CD etc..
Although present disclosure is as above, present invention is not limited to this.Anyone skilled in the art are not departing from this
It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
Subject to the range of restriction.
Claims (41)
1. a kind of indicating means of random access resource characterized by comprising
It determines idle channel, and random access resource configuration information is generated according to the idle channel；
The random access resource configuration information is indicated to user terminal by the scrambled DCI of public RNTI.
2. the indicating means of random access resource according to claim 1, which is characterized in that the random access resource is matched
Confidence breath includes: the occupied time interval resource configuration information of random access and the occupied frequency resource of random access with confidence
Breath.
3. the indicating means of random access resource according to claim 1, which is characterized in that described to be added by public RNTI
The DCI disturbed indicates that the random access resource configuration information includes:
The occupied running time-frequency resource position of random access resource configuration information is indicated by the scrambled DCI of public RNTI；
Based on the occupied running time-frequency resource position of the random access resource configuration information, indicate described to connect at random by PDSCH
Enter resource allocation information.
4. the indicating means of random access resource according to claim 1, which is characterized in that the public RNTI is scrambled
DCI is also indicated: user terminal initiates the relevant parameter configuration information that LBT is executed when random access.
5. the indicating means of random access resource according to claim 4, which is characterized in that the relevant parameter of the LBT
It include: the duration of LBT monitor channel.
6. the indicating means of random access resource according to claim 1, which is characterized in that the random access resource is matched
Confidence breath includes: the relevant parameter configuration index of random access and the occupied time interval resource configuration information of random access.
7. the indicating means of random access resource according to claim 6, which is characterized in that described to be added by public RNTI
The DCI disturbed is indicated before the random access resource configuration information further include: indicates the random access phase by system message
The parameter configuration of pass.
8. the indicating means of random access resource according to claim 7, which is characterized in that the random access is relevant
Parameter comprises at least one of the following: Preamble, Preamble workable for the frequency domain position of random access, random access are most
Big number of retransmissions sends power.
9. the indicating means of random access resource according to claim 1, which is characterized in that described to be added by public RNTI
The DCI that disturbs is indicated before the random access resource configuration information further include: by system message or RRC signaling to the use
Family terminal indicates the public RNTI.
10. a kind of acquisition methods of random access resource characterized by comprising
Receive the scrambled DCI of public RNTI；
Random access resource configuration information is obtained by the public scrambled DCI of RNTI.
11. the acquisition methods of random access resource according to claim 10, which is characterized in that the random access resource
Configuration information includes: the occupied time interval resource configuration information of random access and the occupied frequency resource of random access with confidence
Breath.
12. the acquisition methods of random access resource according to claim 10, which is characterized in that described by described public
The scrambled DCI of RNTI obtains random access resource configuration information
The occupied running time-frequency resource position of random access resource configuration information is obtained by the public scrambled DCI of RNTI
It sets；
Based on the occupied running time-frequency resource position of the random access resource, the random access resource is obtained by PDSCH and is matched
Confidence breath.
13. the acquisition methods of random access resource according to claim 10, which is characterized in that further include: by described
The public scrambled DCI of RNTI obtains the relevant parameter configuration information that LBT is executed when initiating random access.
14. the acquisition methods of random access resource according to claim 13, which is characterized in that the related ginseng of the LBT
Number includes: the duration of LBT monitor channel.
15. the acquisition methods of random access resource according to claim 10, which is characterized in that the random access resource
Configuration information includes: the relevant parameter configuration index of random access and the occupied time interval resource configuration information of random access.
16. the acquisition methods of random access resource according to claim 15, which is characterized in that described by described public
The scrambled DCI of RNTI is obtained before the random access resource configuration information further include:
Receive system message；
The relevant parameter configuration of the random access is obtained by the system message.
17. the acquisition methods of random access resource according to claim 16, which is characterized in that the random access is related
Parameter comprise at least one of the following: Preamble, Preamble's workable for the frequency domain position of random access, random access
Maximum retransmission sends power.
18. the acquisition methods of random access resource according to claim 10, which is characterized in that described to receive public RNTI
Before scrambled DCI further include:
System message is received, the public RNTI is obtained by the system message.
19. the acquisition methods of random access resource according to claim 10, which is characterized in that described to receive public RNTI
Before scrambled DCI further include:
Receive RRC signaling；
The public RNTI is obtained by the RRC signaling.
20. a kind of base station characterized by comprising
Determination unit is adapted to determine that idle channel, and generates random access resource configuration information according to the idle channel；
First indicating unit is suitable for indicating the random access resource configuration to user terminal by the scrambled DCI of public RNTI
Information.
21. base station according to claim 20, which is characterized in that the random access resource configuration information includes: random
Access occupied time interval resource configuration information and the occupied frequency resource configuration information of random access.
22. base station according to claim 20, which is characterized in that first indicating unit includes:
First instruction subelement is suitable for indicating shared by the random access resource configuration information by the scrambled DCI of public RNTI
Running time-frequency resource position；
Second instruction subelement, is suitable for being based on the occupied running time-frequency resource position of the random access resource configuration information, pass through
PDSCH indicates the random access resource configuration information.
23. base station according to claim 20, which is characterized in that first indicating unit is further adapted for by public
The scrambled DCI indicating user terminal of RNTI initiates the relevant parameter configuration information that LBT is executed when random access.
24. base station according to claim 23, which is characterized in that the relevant parameter of the LBT includes: LBT monitor channel
Duration.
25. base station according to claim 20, which is characterized in that the random access resource configuration information includes: random
Access relevant parameter configuration index and the occupied time interval resource configuration information of random access.
26. base station according to claim 25, which is characterized in that further include: the second indicating unit, suitable for being disappeared by system
Breath indicates the relevant parameter configuration of the random access.
27. base station according to claim 26, which is characterized in that the relevant parameter of the random access include it is following at least
A kind of: the maximum retransmission of Preamble, Preamble workable for the frequency domain position of random access, random access are sent
Power.
28. base station according to claim 20, which is characterized in that further include: third indicating unit, suitable for being disappeared by system
Breath or RRC signaling indicate the public RNTI to the user terminal.
29. a kind of terminal characterized by comprising
First receiving unit is suitable for receiving the public scrambled DCI of RNTI；
First acquisition unit is suitable for obtaining random access resource configuration information by the public scrambled DCI of RNTI.
30. terminal according to claim 29, which is characterized in that the random access resource configuration information includes: random
Access occupied time interval resource configuration information and the occupied frequency resource configuration information of random access.
31. terminal according to claim 29, which is characterized in that the first acquisition unit includes:
First obtains subelement, is suitable for obtaining the random access resource configuration information by the public scrambled DCI of RNTI
Occupied running time-frequency resource position；
Second obtains subelement, is suitable for being based on the occupied running time-frequency resource position of the random access resource, be obtained by PDSCH
The random access resource configuration information.
32. terminal according to claim 29, which is characterized in that the first acquisition unit is further adapted for through the public affairs
The total scrambled DCI of RNTI obtains the relevant parameter configuration information that LBT is executed when initiating random access.
33. terminal according to claim 32, which is characterized in that the relevant parameter of the LBT includes: LBT monitor channel
Duration.
34. terminal according to claim 29, which is characterized in that the random access resource configuration information includes: random
Access relevant parameter configuration index and the occupied time interval resource configuration information of random access.
35. terminal according to claim 34, which is characterized in that further include:
Second receiving unit is suitable for receiving system message；
Second acquisition unit is suitable for obtaining the relevant parameter configuration of the random access by the system message.
36. terminal according to claim 35, which is characterized in that the relevant parameter of the random access include it is following at least
A kind of: the maximum retransmission of Preamble, Preamble workable for the frequency domain position of random access, random access are sent
Power.
37. terminal according to claim 29, which is characterized in that further include:
Second receiving unit is suitable for receiving system message；
Third acquiring unit is suitable for obtaining the public RNTI by the system message.
38. terminal according to claim 29, which is characterized in that further include:
Third receiving unit is suitable for receiving RRC signaling；
4th acquiring unit is suitable for obtaining the public RNTI by the RRC signaling.
39. a kind of computer readable storage medium, computer readable storage medium is non-volatile memory medium or non-transient deposits
Storage media is stored thereon with computer instruction, which is characterized in that the computer instruction run when perform claim require 1 to 9 or
The step of any one of person's claim 10 to 19 the method.
40. a kind of base station, including memory and processor, the meter that can be run on the processor is stored on the memory
Calculation machine instruction, which is characterized in that perform claim requires any one of 1 to 9 institute when the processor runs the computer instruction
The step of stating method.
41. a kind of terminal, including memory and processor, the meter that can be run on the processor is stored on the memory
Calculation machine instruction, which is characterized in that perform claim requires any one of 10 to 19 when the processor runs the computer instruction
The step of the method.
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| CN201810345804.3A CN110392428A (en) | 2018-04-17 | 2018-04-17 | The instruction of random access resource and acquisition methods, base station, terminal, readable medium |
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