CN107277897A - RA-RNTI collocation method and device - Google Patents
RA-RNTI collocation method and device Download PDFInfo
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- CN107277897A CN107277897A CN201610212365.XA CN201610212365A CN107277897A CN 107277897 A CN107277897 A CN 107277897A CN 201610212365 A CN201610212365 A CN 201610212365A CN 107277897 A CN107277897 A CN 107277897A
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- rnti
- random access
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0803—Configuration setting
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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
- H04W74/002—Transmission of channel access control information
- H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal
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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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention provides a kind of RA RNTI collocation method and device, wherein, methods described includes：Base station is to user equipment send configuration information, wherein, the configuration information is used to be all random access guidings in same PRACH, configure at least two different RA RNTI, user equipment selects RA RNTI according to the random access guiding sent on PRACH, and receives RAR information based on selected RA RNTI.Using above-mentioned technological means, solve in correlation technique, user equipment, which must be parsed, to be included the RAR information of multiple RAR units and can just get the RAR units of itself needs and then cause the problem of user equipment power consumption is very big, and then reduction user equipment power consumption has been reached, extend the effect of battery life.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of random access radio network temporary mark (RA-RNTI,
Random Access Radio Network Temporary Identity) collocation method and device.
Background technology
Machinery compartment (M2M, Machine to Machine) communication is the 5th third-generation mobile communication technology (5G, 5th Generation)
The important topic studied at present, is also an important applied field of future wireless system.In M2M problems,
For the low cost and poor throughput characteristic of terminal, 3GPP proposes arrowband Internet of Things (NB-IoT, Narow Band
Internet of Things) the sub- problem of systematic research, target is one and Long Term Evolution of structure in 200KHz frequency band
(LTE, Long-Term Evolution) similar system, the wireless telecommunications clothes of poor throughput are provided for low cost terminals
Business.It is descending still to use OFDM (OFDMA, Orthogonal Frequency Division Multiple Access)
Technology, up use single-carrier frequency division multiple access (SC-FDMA, Single-Carrier Frequency Division Multiple
Access) technology, and reuse as far as possible or simplify existing functional module in LTE system.Subcarrier width is except continuing to use LTE
Outside system 15KHz subcarrier width, up increase 3.75KHz subcarrier width is to further enhance machine terminal
Up covering power.Currently, related technical standard is just studied in 3GPP International Organization for standardization.
In traditional LTE system, different RACHs is to use different random access radio network temporary marks
(RA-RNTI, Random Access Radio Network Temporary Identity) is distinguished.User terminal
Use and send Physical Random Access Channel (PRACH, Physical the Random Access of random access guiding
Channel the RA-RNTI corresponding to) carried out in follow-up accidental access response window accidental access response (RAR,
Random Access Response) reception.During this, the RA-RNTI that user terminal is used is according to transmission
First subframe numbers (0~9) where the PRACH of random access guiding, the PRACH for sending random access guiding exists
Index (0~5) on frequency domain carries out calculating what is obtained.It can be seen that, traditional RA-RNTI computational methods are with transmission
The subframe numbers of first subframe and PARCH frequency indices number shared by the PARCH of random access guiding enter for parameter
What row was calculated, it could support up Physical Random Access Channel (PRACH, the Physical Random in the range of a 10ms frame
Access Channel) identification.
Because different user may be sent in different random access guidings, a RAR message in identical PRACH
Often include multiple RAR units, each RAR units include random access guiding mark (RAPID,
RandomAccess Preamble Identity) it is used to refer to the targeted customer of the RAR units.
In summary, in traditional LTE system, user is after random access guiding is sent, it is necessary in defined RAR
All PDCCH of detection in window.And if the RA-RNTI corresponding to PRACH is used in some PDCCH
It has been successfully decoded after some DCI information, in addition it is also necessary to which all RAR received according to the DCI information in RAR message are mono-
Member.The RAR units of oneself are just finally found according to the RAPID of RAR units.During this, user equipment consumption
Can be a lot.Because NB IoT systems wished the service life of user side battery more than 10 years, the design of power saving just seems
It is particularly important.
For in correlation technique, user equipment, which must be parsed, to be included the RAR information of multiple RAR units and could obtain
To itself need RAR units so that cause the problem of user equipment power consumption is very big, not yet propose effective solution party
Case.
The content of the invention
The invention provides the collocation method of RA-RNTI a kind of and device, at least to solve the above problems.
According to an aspect of the invention, there is provided a kind of RA-RNTI collocation method, including：Base station is set to user
Preparation send configuration information, wherein, the configuration information is used to be all random access guidings in same PRACH, configuration
At least two different RA-RNTI, user equipment selects RA-RNTI according to the random access guiding sent on PRACH,
And RAR information is received based on selected RA-RNTI.
Further, the configuration information, is additionally operable to as all random access guidings distribution on same PRACH respectively
The RA-RNTI differed.
Further, the base station sends the RAR information on physical down control information PDCCH.
Further, the configuration information is sent by least one mode：Carry to broadcast the message in system message and send out
Send；Pass through specified value protocol conventions.
According to another aspect of the present invention, a kind of RA-RNTI collocation method is additionally provided, including：User equipment
The configuration information that base station is sent is received, wherein, the configuration information is used to be same Physical Random Access Channel PRACH
In all random access guidings, configure at least two different RA-RNTI；The user equipment is sent out according on PRACH
The random access guiding selection RA-RNTI sent, and RAR information is received based on selected RA-RNTI.
Further, the configuration information, is additionally operable to as all random access guidings distribution on same PRACH respectively
The RA-RNTI differed.
Further, the configuration information is sent by least one mode：Carry to broadcast the message in system message and send out
Send；Pass through specified value protocol conventions.
Further, methods described also includes：If the user equipment does not receive the RAR within a specified time
Information, the user equipment receives the rollback transmitted by least one of in the following manner the base station and indicates (BI, Back off
Indication) BI information：The BI information is sent by system message module SIB；Pass through Physical Downlink Control Channel
PDCCH sends BI information.
Further, BI information is sent by PDCCH, including：Sent by the public search space in PDCCH
BI information.
Further, the BI information is sent in PDCCH, the BI information is faced by specified cell-radio network
When mark C-RNTI carry out scrambler.
Further, methods described also includes：After the user equipment judges current random access procedure failure, according to
At least situations below judges whether to start the random access procedure of next round：Whether timer time reaches；Reference signal connects
Receive power RSRP situation of change；The load condition of current PRACH channels.
Further, the duration of the timer is determined by least one of in the following manner parameter：What base station was sent matches somebody with somebody confidence
Breath；The number of times of the user equipment random access failure.
According to another aspect of the present invention, a kind of RA-RNTI configuration device is additionally provided, applied to base station, bag
Include：
Sending module, for user equipment send configuration information, wherein, the configuration information be used for for same physics with
All random access guidings in machine access channel PRACH, configure at least two different RA-RNTI, wherein, user
Equipment selects RA-RNTI according to the random access guiding sent on PRACH, and is connect based on selected RA-RNTI
Receive RAR information.
According to another aspect of the present invention, a kind of RA-RNTI configuration device is additionally provided, applied to user equipment,
Including：First receiving module, the configuration information for receiving base station transmission, wherein, the configuration information is used for be same
All random access guidings in Physical Random Access Channel PRACH, configure at least two different RA-RNTI；Selection
Module, for selecting RA-RNTI according to the random access guiding sent on PRACH；Second receiving module, for base
RAR information is received in selected RA-RNTI.
By the present invention, using all random access guidings in same PRACH, configuration at least two is different
RA-RNTI technological means, the i.e. random access guiding for different RA-RNTI, user equipment only need to be received from
The RAR information of body, the RAR information without receiving other users equipment, using above-mentioned technological means, solves correlation
In technology, user equipment, which must be parsed, to be included the RAR information of multiple RAR units and can just get itself needs
RAR units and then cause the problem of user equipment power consumption is very big, and then reached reduction user equipment power consumption, extend
The effect of battery life.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, the present invention
Schematic description and description be used for explain the present invention, do not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the flow chart of RA-RNTI according to embodiments of the present invention collocation method；
Fig. 2 is another flow chart of RA-RNTI according to embodiments of the present invention collocation method；
Fig. 3 is the structured flowchart of RA-RNTI according to embodiments of the present invention configuration device；
Fig. 4 is another structured flowchart of RA-RNTI according to embodiments of the present invention configuration device；
Fig. 5 is the another structured flowchart of RA-RNTI according to embodiments of the present invention configuration device；
The letter that Fig. 6 is indicated for the RA-RNTI collocation methods based on RA access leads of the preferred embodiment of the present invention
Make flow chart；
Fig. 7 receives the RA-RNTI collocation methods based on RA access leads for the user of the preferred embodiment of the present invention and indicated
Processing procedure figure afterwards；
Fig. 8 is successfully carried out for RA-RNTI collocation methods of the use based on RA access leads of the preferred embodiment of the present invention
The signaling process figure of Stochastic accessing；
Fig. 9 carries out random for RA-RNTI collocation methods of the use based on RA access leads of the preferred embodiment of the present invention
Base station fails to detect the leading signaling process figures of RA during access.
Embodiment
Describe the present invention in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that in the feelings not conflicted
Under condition, the feature in embodiment and embodiment in the application can be mutually combined.
It should be noted that term " first ", " second " in description and claims of this specification and above-mentioned accompanying drawing
Etc. being for distinguishing similar object, without for describing specific order or precedence.
A kind of RA-RNTI collocation method is provided in the present embodiment, and Fig. 1 is according to embodiments of the present invention
The flow chart of RA-RNTI collocation method, as shown in figure 1, the flow comprises the following steps：
Step S102, base station to user equipment send configuration information, wherein, the configuration information be used for be same PRACH
In all random access guidings, configure at least two different RA-RNTI, wherein, user equipment is according on PRACH
The random access guiding selection RA-RNTI of transmission, and RAR information is received based on selected RA-RNTI.
It is in same PRACH before all Stochastic accessings by base station and the intermediate step S102 of user equipment execution
Lead, configure at least two different RA-RNTI, the i.e. random access guiding for different RA-RNTI, user equipment
Only need to receive the RAR information of itself, the RAR information without receiving other users equipment, using above-mentioned technological means,
Solve in correlation technique, user equipment, which must be parsed, to be included the RAR information of multiple RAR units and can just get
RAR units that itself needs and then cause the problem of user equipment power consumption is very big, and then reach reduction user equipment
Power consumption, extends the effect of battery life.In order to improve above-mentioned technical proposal, by taking user equipment side as an example, in the present embodiment
In additionally provide a kind of RA-RNTI collocation method, Fig. 2 is RA-RNTI according to embodiments of the present invention configuration side
Another flow chart of method, as shown in Fig. 2 the flow comprises the following steps：
Step S202, user equipment receives the configuration information that base station is sent, wherein, the configuration information is used for be same
All random access guidings in PRACH, configure at least two different RA-RNTI；
Step S204, above-mentioned user equipment selects RA-RNTI according to the random access guiding sent on PRACH, and
RAR information is received based on selected RA-RNTI.
By base station and the intermediate step S202 to step S204 of user equipment execution, user equipment receives what base station was sent
Configuration information, the configuration information is used for being all random access guidings in same PRACH, and configuration at least two is different
RA-RNTI, i.e. the random access guiding for different RA-RNTI, user equipment only needs to receive the RAR of itself
Information, the RAR information without receiving other users equipment, using above-mentioned technological means, is solved in correlation technique,
User equipment must parse include multiple RAR units RAR information can just get itself needs RAR it is mono-
Member so cause the technical scheme of the problem of user equipment power consumption is very big, the i.e. embodiment of the present invention by optimizing Stochastic accessing
Configuration and process reduce the power consumption of user as far as possible, to support longer battery life.
Base station is can be seen that for all random access guidings from above-mentioned steps S102 and step S202, configuration at least two
Individual different RA-RNTI, i.e. base station are that one or more random access guidings provide an identical RA-RNTI, are led to
The ratio of efficient message in RAR message can be controlled by overregulating the number of shared identical RA-RNTI random access guiding.
, although need for carrying out RAPID instruction in each RAR units, but its shared bit number is still in this case
It can greatly reduce.
For above-mentioned technical proposal, base station is that the RA-RNTI that random access guiding is configured can include various configurations mode,
It is how random according to what is sent on PRACH below in conjunction with the above-mentioned configuration mode of example explanation, and user equipment
Access lead selects RA-RNTI.
When a PRACH includes five random access guidings, the first two random access guiding correspondence first can be configured
RA-RNTI, the 2nd RA-RNTI of rear three random access guidings correspondence, above-mentioned corresponding relation can be informed user by base station
Equipment, can be specifically that user equipment is informed in base station by broadcast message or specified signaling method, user equipment is received
After random access guiding, the corresponding relation sent according to base station obtains the random access guiding received corresponding
RA-RNTI。
In embodiments of the present invention, also there is various configurations mode, for example, the first two is random in five random access guidings
Access lead correspondence the first RA-RNTI, the 3rd twoth RA-RNTI corresponding with the 4th, the 5th correspondence the 3rd
RA-RNTI, base station is sent this corresponding relation to user equipment by broadcast message or specified signaling method, may be used also
To be the correspondence of first three in 7 random access guidings the first RA-RNTI, rear four correspondences the 2nd RA-RNTI, base station
This corresponding relation is sent by broadcast message or specified signaling method to user equipment, it is necessary to illustrate, it is above-mentioned
Example is only used for illustrating the technical scheme of the embodiment of the present invention, is not intended to limit the present invention embodiment.
In order to preferably realize the technique effect for reducing power consumption, above-mentioned configuration information is used for for the institute on same PRACH
Have all random access guidings distribution that random access guiding distributed on different RA-RNTI, i.e. PRACH is
Different RA-RNTI, can save energy to greatest extent two-by-two.
Certainly, because the RA-RNTI of random access guiding is different, the RAR information of different user just can be complete
It is distinguished, the RAR units only needed in each RAR information comprising user, can not includes in RAR information
RAPID continues to indicate that RAR units, the i.e. bit number of RAR information can also greatly reduce, and therefore, base station can be with
RAR information is sent on PDCCH, at this moment, can be directly using corresponding to the random access guiding sent
RA-RNTI is scrambled to the RAR message.
For the sending method of above-mentioned configuration information, two kinds of implementations are provided in the optional example of the embodiment of the present invention：
Carry to broadcast the message in system message and send；Pass through specified value protocol conventions.
Alternatively, the above method also includes：If user equipment does not receive RAR information, user within a specified time
Equipment receives the rollback transmitted by least one of in the following manner base station and indicates BI information：Pass through system message module SIB
Send BI information；BI information is sent by physical downlink control channel PDCCH, wherein it is possible to pass through PDCCH
In public search space send BI information, in optional example, in PDCCH send BI information, the BI letter
Breath carries out scrambler by the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI specified.
When the Stochastic accessing that user equipment side has carried out the maximum times of base station defined is retransmitted and can not be received all the time corresponding
RAR information after, user equipment judges the failure of current random access procedure, and herein, user equipment side can also be held
Row following technical scheme：Judged whether to start the random access procedure of next round according at least situations below：Timer time
Whether reach；Reference Signal Received Power RSRP situation of change；The load condition of current PRACH channels, enters one
Step ground, the duration of above-mentioned timer is determined by least one of in the following manner parameter：The configuration information that base station is sent；User
The number of times of equipment random access failure.
In summary, the technical scheme that the embodiment of the present invention is proposed：RA-NTI collocation methods based on random access guiding,
I.e. base station provides different RA-RNTI values, Yong Hushe for the different random access lead sent in same PRACH
It is standby after a random access guiding is sent, the reception with regard to carrying out follow-up RAR with corresponding RA-RNTI.So,
The RAR message of different user devices just can be with completely separable.One user equipment only needs to receive the RAR message of oneself,
RAR message without receiving other users equipment.Also, because each RAR message is only comprising a RAR
Unit, RAPID can be without being indicated again.
The embodiment of the present invention to above-mentioned technical proposal further improvement is that, base station can indicate RA in system broadcasts
- RNTI collocation methods are the processing streams for being also based on random access guiding of traditional handling process based on PRACH
Journey, user equipment carries out specific random access operation according to the instruction received.If RA-RNTI collocation methods are indicated
It is based on random access guiding, then to carry out follow-up RA operations by the method for the embodiment of the present invention.Otherwise, by tradition side
Method carries out follow-up RA operations.
After user equipment sends random access guiding, if not receiving RAR message, it is necessary to receive returning for base station
Move back instruction BI.Generally, the user equipment of random access guiding is sent in same PRACH to be needed to receive and uses phase
Same BI indicates to carry out follow-up rollback operation.Therefore, the embodiment of the present invention also proposed following several BI information transmission sides
Method：
1) BI information is put into SIB, if user equipment in RAR windows if the RAR that can not receive oneself disappears
Breath, the transmission with regard to being further continued for random access guiding next time after directly being retracted using the BI values in SIB.
2) public search space that base station can be in PDCCH sends BI information.The information can also merge at other
In public information, base station can specify a special RNTI (being for example properly termed as BI-RNTI) for each PRACH
The transmission of BI information in PDCCH is carried out, in an optional example, the BI information can be located in RAR windows
In last PDCCH.
When the Stochastic accessing that user equipment has carried out the maximum times of base station defined is retransmitted and can not be received all the time corresponding
After RAR information, user equipment judges random access failure.User equipment can start a timer, and at this
Restart the random access procedure of a new round after timer expiry, that is, reselect PRACH, and connect at random
Enter leading transmission and repeating transmission.Optionally, the information that the duration that the timer is configured can be sent according to base station is determined；
The duration of the timer can be configured according to standard agreement regulation；The duration that the timer is configured can be according to random
Access failure number of times carries out dynamic configuration by user equipment.
Optionally, user equipment can continue to monitoring or periodically the received base station signal RSRP of monitoring change,
And decide whether to restart the random access procedure of a new round according to base station signal RSRP change, that is, reselect
PRACH, and carry out the transmission and repeating transmission of random access guiding.Certainly, user equipment can also be according to present channel
Load condition decides whether to restart the random access procedure of a new round.
The above-mentioned technical proposal of the embodiment of the present invention：Including the RA-RNTI configurations based on random access guiding and accordingly
BI Notification Methods.Because user equipment only needs to receive the RAR units of oneself, same PRACH is used without receiving
Other users equipment RAR units, it is possible to reduce power consumption, extend battery life.Secondly, base station can not
With the instruction that RAPID is carried out for RAR units, the information for needing to transmit is reduced, that further reduces power consumption.Most
Afterwards, BI indicating means is optimized the embodiment of the present invention, to adapt to proposed Stochastic accessing.
Through the above description of the embodiments, those skilled in the art can be understood that according to above-described embodiment
Method the mode of required general hardware platform can be added to realize by software, naturally it is also possible to by hardware, but a lot
In the case of the former be more preferably embodiment.Understood based on such, technical scheme is substantially in other words to existing
The part for having technology to contribute can be embodied in the form of software product, and the computer software product is stored in one
In storage medium (such as ROM/RAM, magnetic disc, CD), including some instructions are make it that a station terminal equipment (can
To be mobile phone, computer, server, or network equipment etc.) perform method described in each embodiment of the invention.
A kind of RA-RNTI configuration device is additionally provided in the present embodiment, and applied to base station, the device is used to realize
Above-described embodiment and preferred embodiment, had carried out repeating no more for explanation.As used below, term " mould
Block " can realize the combination of the software and/or hardware of predetermined function.Although the device described by following examples is preferably
Realized with software, but hardware, or the realization of the combination of software and hardware is also that may and be contemplated.
Fig. 3 is the structured flowchart of RA-RNTI according to embodiments of the present invention configuration device, as shown in figure 3, the dress
Put including：
Sending module 30, for user equipment send configuration information, wherein, the configuration information is used to be same physics
All random access guidings in RACH PRACH, configure at least two different RA-RNTI, wherein, use
Family equipment selects RA-RNTI according to the random access guiding sent on PRACH, and based on selected RA-RNTI
Receive RAR information.
It is all random access guidings in same PRACH by the execution of sending module 30, configuration at least two
Different RA-RNTI, the i.e. random access guiding for different RA-RNTI, user equipment only need to receive itself
RAR information, the RAR information without receiving other users equipment, using above-mentioned technological means, solves correlation technique
In, user equipment, which must be parsed, to be included the RAR information of multiple RAR units and can just get the RAR of itself needs
Unit and then cause the problem of user equipment power consumption is very big, and then reached reduction user equipment power consumption, extend the battery longevity
The effect of life.
Wherein, the configuration information in sending module 30, is additionally operable to as before all Stochastic accessings on same PRACH
Lead and distribute different RA-RNTI.
A kind of RA-RNTI configuration device is additionally provided in the present embodiment, and applied to user equipment, the device is used for
Above-described embodiment and preferred embodiment are realized, repeating no more for explanation had been carried out.As used below, term
" module " can realize the combination of the software and/or hardware of predetermined function.Although device described by following examples compared with
Realized goodly with software, but hardware, or the realization of the combination of software and hardware is also that may and be contemplated.
Fig. 4 is another structured flowchart of RA-RNTI according to embodiments of the present invention configuration device, as shown in figure 4,
The device includes：
First receiving module 40, the configuration information for receiving base station transmission, wherein, the configuration information is used for be same
All random access guidings in Physical Random Access Channel PRACH, configure at least two different RA-RNTI；
Selecting module 42, for selecting RA-RNTI according to the random access guiding sent on PRACH；
Second receiving module 44, for receiving RAR information based on selected RA-RNTI.
By the effect of above-mentioned module, the configuration information that base station is sent is received, the configuration information is used for being same PRACH
In all random access guidings, configure at least two different RA-RNTI, i.e., for different RA-RNTI at random connecing
Enter it is leading, user equipment only need to receive the RAR information of itself, the RAR information without receiving other users equipment,
Using above-mentioned technological means, solve in correlation technique, user equipment, which must be parsed, includes multiple RAR units
RAR information can just get the RAR units of itself needs and then cause the problem of user equipment power consumption is very big, i.e., originally
The technical scheme of inventive embodiments reduces the power consumption of user by the configuration and process that optimize Stochastic accessing as far as possible, to prop up
Hold longer battery life.
Wherein, the configuration information of the first receiving module 40, is additionally operable to as all Stochastic accessings on same PRACH
The different RA-RNTI of leading distribution, configuration information is sent by least one mode：Carrying disappears in system
Breath broadcast message is sent；Pass through specified value protocol conventions.
Fig. 5 is the another structured flowchart of RA-RNTI according to embodiments of the present invention configuration device, as shown in figure 5,
Also include：3rd receiving module 46, for not receiving RAR information, Yong Hushe within a specified time in user equipment
It is standby to receive the BI that base station is transmitted by least one of in the following manner：BI information is sent by system message module SIB；It is logical
Cross physical downlink control channel PDCCH and send BI information.
Said apparatus also includes：Judge module 48, for after user equipment judges the failure of current random access procedure, root
Judge whether to start the random access procedure of next round according at least situations below：Whether timer time reaches；Reference signal
Receiving power RSRP situation of change；The load condition of current PRACH channels, in optional example, above-mentioned timing
The duration of device is determined by least one of in the following manner parameter：The configuration information that base station is sent；User equipment Stochastic accessing loses
The number of times lost.
It should be noted that above-mentioned modules can be by software or hardware to realize, for the latter, Ke Yitong
Cross in the following manner realization, but not limited to this：Above-mentioned module is respectively positioned in same processor；Or, above-mentioned module distinguishes position
In multiple processors.
Above-mentioned technical proposal is explained below in conjunction with preferred embodiment, but is not used in the restriction embodiment of the present invention.
The letter that Fig. 6 is indicated for the RA-RNTI collocation methods based on RA access leads of the preferred embodiment of the present invention
Flow chart is made, as shown in fig. 6, its implementation process comprises the following steps：
Step S602:Base station is referred to by system broadcast message to the RA-RNTI collocation methods based on RA access leads
Show.Optionally, the instruction can be the unified instruction for all PRACH；The instruction can be with special instructions at certain
The RA-RNTI collocation methods based on RA access leads are used in one or several PRACH.
Specific RA-RNTI configuration informations can also be included in above-mentioned steps S602, i.e. base station passes through system broadcast information
User equipment random access guiding and RA-RNTI corresponding relation are informed, can be one or more random access guidings
The same RA-RNTI of the correspondence or different RA-RNTI of all random access guiding correspondences；It is optional
, RA-RNTI configuration informations can also in advance be arranged by standard agreement, at this moment avoid the need for extra system
Broadcast notifies that the specific RA-RNTI configuration informations of specific RA-RNTI collocation methods can also be by RRC signaling
Inform user equipment.
Step S604:Method of the user after the instruction is received in accordance with the instructions carries out follow-up random access procedure.
Fig. 7 receives the RA-RNTI collocation methods based on RA access leads for the user of the preferred embodiment of the present invention and indicated
Processing procedure figure afterwards.As shown in fig. 7, its implementation process comprises the following steps：
Step S702:User receives the system broadcast message related to the RA-RNTI collocation methods based on RA access leads.
Step S704:User judges whether to receive the instruction of the RA-RNTI collocation methods based on RA access leads.If
Receive in the instruction, follow-up random access procedure just according to the RA-RNTI collocation methods selection in RA access leads
Corresponding RA-RNTI carries out the reception of RAR message；Otherwise, according to traditional LTE system in terms of PRACH positions
Calculate the reception that RA-RNTI values carry out RAR message.
Step S706:If not receiving the instruction, traditional RA-RNTI computational methods based on PRACH positions are used
Carry out follow-up RA processes.
Step S708:If receiving the instruction, continue to the specific RA-RNTI based on RA access leads and match somebody with somebody confidence
Breath.Optionally, the information can be arranged by standard agreement.Then indicate to match somebody with somebody with related according to the configuration received
Confidence breath carries out follow-up RA processes.
Fig. 8 is successfully carried out for RA-RNTI collocation methods of the use based on RA access leads of the preferred embodiment of the present invention
The signaling process figure of Stochastic accessing, as shown in figure 8, its implementation process comprises the following steps：
Step S802：Base station sends Stochastic accessing relevant configuration, includes each PRACH deployment information.
Step S804：Base station is sent to be indicated based on RA-RANTI collocation methods leading RA, optionally, base station hair
Send based on RA-RANTI configuration informations leading RA；It can be led to based on the leading RA-RANTI configuration informations of RA
Standard agreement is crossed in advance to be arranged；The RA-RANTI collocation methods that base station is sent indicate that RA-RANTI can be included
Include random access guiding and RA-RANTI configuration relation in configuration information, the RA-RANTI configuration informations, can
To be the one or more random access guidings same RA-RNTI of correspondence or all random access guidings pair
Answer different RA-RNTI.
Step S806：User selects PRACH and RA leading, and transmission should in selected PRACH
RA is leading.
Step S808：User is used after RA-RNTI progress according to the transmitted leading selection RA-RNTI of RA
Continuous RAR reception.
Step S810：Base station, which is that the RA that detects is leading in each PRACH, sends single RAR message.
Step S812：Base station and user traditionally continue follow-up RA processes.
Fig. 9 carries out random for RA-RNTI collocation methods of the use based on RA access leads of the preferred embodiment of the present invention
Base station fails to detect the leading signaling process figures of RA during access.As shown in figure 9, its implementation process comprises the following steps：
Step S902:Base station sends Stochastic accessing relevant configuration, includes each PRACH deployment information.
Step S904:Base station is sent to be indicated based on RA-RANTI collocation methods leading RA, and optionally, base station is sent
Based on the RA-RANTI configuration informations that RA is leading；It can be passed through based on the leading RA-RANTI configuration informations of RA
Standard agreement is arranged in advance；The RA-RANTI collocation methods that base station is sent indicate including RA-RANTI to match somebody with somebody
Confidence is ceased, and random access guiding and RA-RANTI configuration relation are included in the RA-RANTI configuration informations, can be with
It is the same RA-RNTI of one or more random access guiding correspondences or all random access guiding correspondences
Different RA-RNTI.
Step S906:User selects PRACH and RA leading, and sends in selected PRACH the RA
It is leading.
Step S908:User is used after RA-RNTI progress according to the transmitted leading selection RA-RNTI of RA
Continuous RAR reception.Except transmitted RA is leading, RA-RNTI selection can also consider other factors and enter
Row selection, such as position of PRACH channels, including subframe position and/or frequency domain position etc..
Step S910:Base station sends a single BI message.Used when user is not detected by the RAR windows of agreement
During the RAR message of selected RA-RNTI scramblings, user carries out the reception of foregoing BI message.Optionally, base station can be with
Single BI message is transmitted in RAR windows.At this moment, user can first receive the BI message, but ought only use
Family just uses the message when RAR message using selected RA-RNTI scramblings is not detected by the RAR windows of agreement.
Step S912:User carries out rollback operation by the instruction of BI message.Then the new Stochastic accessing mistake of a wheel is restarted
Journey.
Embodiments of the invention additionally provide a kind of storage medium.Alternatively, in the present embodiment, above-mentioned storage medium can
The program code for performing following steps to be arranged to storage to be used for：
S1, base station to user equipment send configuration information, wherein, the configuration information is used for for institute in same PRACH
There is random access guiding, configure at least two different RA-RNTI, user equipment is random according to what is sent on PRACH
Access lead selects RA-RNTI, and receives RAR information based on selected RA-RNTI.
Embodiments of the invention additionally provide a kind of storage medium.Alternatively, in the present embodiment, above-mentioned storage medium can
The program code for performing following steps to be arranged to storage to be used for：
S1, user equipment receives the configuration information that base station is sent, wherein, the configuration information is used to be same physical accidental
All random access guidings in channel PRACH are accessed, at least two different RA-RNTI are configured；
S2, above-mentioned user equipment selects RA-RNTI according to the random access guiding sent on PRACH, and based on selected
The RA-RNTI selected receives RAR information.
Alternatively, in the present embodiment, above-mentioned storage medium can include but is not limited to：USB flash disk, read-only storage (ROM,
Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk,
Magnetic disc or CD etc. are various can be with the medium of store program codes.
Alternatively, in the present embodiment, processor performs above-mentioned according to the program code stored in storage medium
RA-RNTI configuration flow.
Alternatively, the specific example in the present embodiment may be referred to showing described in above-described embodiment and optional embodiment
Example, the present embodiment will not be repeated here.
Obviously, those skilled in the art should be understood that above-mentioned each module of the invention or each step can be with general
Computing device realizes that they can be concentrated on single computing device, or is distributed in multiple computing devices and is constituted
Network on, alternatively, the program code that they can be can perform with computing device be realized, it is thus possible to by they
Storage is performed by computing device in the storage device, and in some cases, can be to be held different from order herein
They, are either fabricated to each integrated circuit modules or will be many in them by the shown or described step of row respectively
Individual module or step are fabricated to single integrated circuit module to realize.So, the present invention is not restricted to any specific hardware
Combined with software.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the technology of this area
For personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made is any
Modification, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (14)
1. a kind of random access radio network temporary mark RA-RNTI collocation method, it is characterised in that including：
Base station to user equipment send configuration information, wherein, the configuration information be used for for same physical accidental access
All random access guidings in channel PRACH, configure at least two different RA-RNTI, user equipment according to
The random access guiding selection RA-RNTI sent on PRACH, and RAR letters are received based on selected RA-RNTI
Breath.
2. according to the method described in claim 1, it is characterised in that the configuration information, it is additionally operable to as same PRACH
On all random access guidings distribute different RA-RNTI.
3. according to the method described in claim 1, it is characterised in that the base station is in physical down control information PDCCH
It is upper to send the RAR information.
4. according to the method described in claim 1, it is characterised in that the configuration information is sent out by least one mode
Send：Carry to broadcast the message in system message and send；Pass through specified value protocol conventions.
5. a kind of random access radio network temporary mark RA-RNTI collocation method, it is characterised in that including：
User equipment receives the configuration information that base station is sent, wherein, the configuration information is used to be same physical accidental
All random access guidings in channel PRACH are accessed, at least two different RA-RNTI are configured；
The user equipment selects RA-RNTI according to the random access guiding sent on PRACH, and based on selected
RA-RNTI receive RAR information.
6. method according to claim 5, it is characterised in that the configuration information, is additionally operable to as same PRACH
On all random access guidings distribute different RA-RNTI.
7. method according to claim 5, it is characterised in that the configuration information is sent out by least one mode
Send：Carry to broadcast the message in system message and send；Pass through specified value protocol conventions.
8. method according to claim 5, it is characterised in that methods described also includes：
If the user equipment does not receive the RAR information within a specified time, the user equipment receives institute
State the rollback transmitted by least one of in the following manner base station and indicate BI information：Sent by system message module SIB
The BI information；BI information is sent by physical downlink control channel PDCCH.
9. method according to claim 8, it is characterised in that BI information is sent by PDCCH, including：Pass through
Public search space in PDCCH sends BI information.
10. method according to claim 8, it is characterised in that the BI information, BI letters are sent in PDCCH
Breath carries out scrambler by the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI specified.
11. method according to claim 5, it is characterised in that methods described also includes：
After the user equipment judges current random access procedure failure, judge whether to open according at least situations below
The random access procedure of dynamic next round：Whether timer time reaches；Reference Signal Received Power RSRP change
Situation；The load condition of current PRACH channels.
12. method according to claim 11, it is characterised in that the duration of the timer passes through at least in the following manner
One of parameter determine：The configuration information that base station is sent；The number of times of the user equipment random access failure.
13. a kind of random access radio network temporary mark RA-RNTI configuration device, applied to base station, it is characterised in that
Including：
Sending module, for user equipment send configuration information, wherein, the configuration information is used to be same thing
All random access guidings in RACH PRACH are managed, at least two different RA-RNTI are configured, wherein,
User equipment selects RA-RNTI according to the random access guiding sent on PRACH, and based on selected RA-RNTI
Receive RAR information.
14. a kind of random access radio network temporary mark RA-RNTI configuration device, it is characterised in that set applied to user
It is standby, including：
First receiving module, the configuration information for receiving base station transmission, wherein, the configuration information is used for be same
All random access guidings in individual Physical Random Access Channel PRACH, configure at least two different RA-RNTI；
Selecting module, for selecting RA-RNTI according to the random access guiding sent on PRACH；
Second receiving module, for receiving RAR information based on selected RA-RNTI.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610212365.XA CN107277897A (en) | 2016-04-07 | 2016-04-07 | RA-RNTI collocation method and device |
| PCT/CN2017/073174 WO2017173883A1 (en) | 2016-04-07 | 2017-02-09 | Method and device for ra-rnti configuration |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610212365.XA CN107277897A (en) | 2016-04-07 | 2016-04-07 | RA-RNTI collocation method and device |
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| CN201610212365.XA Pending CN107277897A (en) | 2016-04-07 | 2016-04-07 | RA-RNTI collocation method and device |
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| WO (1) | WO2017173883A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019095927A1 (en) * | 2017-11-17 | 2019-05-23 | 华为技术有限公司 | Random access method, network device and terminal |
| US10383150B2 (en) * | 2016-05-11 | 2019-08-13 | Ofinno, Llc | Random access process in a wireless device and wireeless network |
| CN110831223A (en) * | 2018-08-07 | 2020-02-21 | 华为技术有限公司 | Random access method and device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP3843492A4 (en) * | 2018-07-25 | 2022-01-05 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Random access method and communication device |
| US20230106898A1 (en) * | 2020-03-09 | 2023-04-06 | Beijing Xiaomi Mobile Software Co., Ltd. | Communication method and apparatus, and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9210711B2 (en) * | 2011-05-05 | 2015-12-08 | Telefonaktiebolaget L M Ericsson (Publ) | Methods and arrangements for adapting random access allocation of resources to user equipments |
| CN102883459B (en) * | 2011-07-12 | 2016-05-25 | 华为技术有限公司 | The reception of accidental access response and sending method, subscriber equipment, base station and system |
| CN102264150B (en) * | 2011-08-01 | 2018-01-02 | 中兴通讯股份有限公司 | PRACH transmission methods and device in carrier aggregation |
| CN103298121B (en) * | 2012-03-02 | 2016-07-06 | 普天信息技术有限公司 | A kind of terminal frequency point maps and collocation method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10383150B2 (en) * | 2016-05-11 | 2019-08-13 | Ofinno, Llc | Random access process in a wireless device and wireeless network |
| US11109418B2 (en) | 2016-05-11 | 2021-08-31 | Ofinno, Llc | Multiple preamble transmission for random access in a wireless device and wireless network |
| WO2019095927A1 (en) * | 2017-11-17 | 2019-05-23 | 华为技术有限公司 | Random access method, network device and terminal |
| CN109803438A (en) * | 2017-11-17 | 2019-05-24 | 华为技术有限公司 | Accidental access method, the network equipment and terminal |
| US11706807B2 (en) | 2017-11-17 | 2023-07-18 | Huawei Technologies Co., Ltd. | Random access method, network device, and terminal |
| CN109803438B (en) * | 2017-11-17 | 2023-11-10 | 华为技术有限公司 | Random access method, network equipment and terminal |
| CN110831223A (en) * | 2018-08-07 | 2020-02-21 | 华为技术有限公司 | Random access method and device |
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| WO2017173883A1 (en) | 2017-10-12 |
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