CN110012551A - User equipment and correlation technique - Google Patents
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- CN110012551A CN110012551A CN201810013347.8A CN201810013347A CN110012551A CN 110012551 A CN110012551 A CN 110012551A CN 201810013347 A CN201810013347 A CN 201810013347A CN 110012551 A CN110012551 A CN 110012551A
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- 230000005540 biological transmission Effects 0.000 claims abstract description 65
- 230000004044 response Effects 0.000 claims abstract description 31
- 230000002708 enhancing effect Effects 0.000 claims description 208
- 230000009194 climbing Effects 0.000 claims description 33
- 230000008569 process Effects 0.000 claims description 21
- 238000005259 measurement Methods 0.000 claims description 4
- 238000011084 recovery Methods 0.000 description 17
- 230000000977 initiatory effect Effects 0.000 description 13
- 230000007246 mechanism Effects 0.000 description 13
- 230000011664 signaling Effects 0.000 description 11
- 238000012913 prioritisation Methods 0.000 description 10
- 230000006870 function Effects 0.000 description 8
- 230000001965 increasing effect Effects 0.000 description 8
- 238000004891 communication Methods 0.000 description 6
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0833—Random access procedures, e.g. with 4-step access
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Abstract
Present disclose provides a kind of methods in user equipment (UE), comprising: in radio resource control RRC layer, determination will initiate early time data transmission EDT；The first instruction information is sent to media access control MAC layer in rrc layer, instruction MAC layer initiates the random access procedure for being used for EDT；And the random access procedure for being used for EDT is initiated in response to receiving the first instruction information in MAC layer.
Description
Technical field
This disclosure relates to wireless communication technology field, more specifically, this disclosure relates to a kind of user equipment and with early issue
According to the relevant method of transmission (EDT).
Background technique
In March, 2017, third generation partner program (3rd Generation Partnership Project:
3GPP) in RAN#75 plenary session, one about narrowband Internet of Things (NarrowBand Internet Of things, NB-IoT)
The new job further enhanced (referring to RP-170852:New WID on Further NB-IoT enhancements)
The new work item further enhanced with one about machine type communication (Machine Type Communication:MTC)
Mesh (referring to non-patent literature: RP-170732:New WID on Even further enhanced MTC for LTE) obtains
Approval.The target of the two research projects first is that enhanced for the transmission of small data packets business, consider small data packets industry
The data volume to be transmitted whithin a period of time of being engaged in is smaller, such as 1000 bits, i.e., is by the transmission block of a physical layer
Can pass, and in current mechanism data transmission all must after completing to carry out RRC connection status with the connection eated dishes without rice or wine ability it is complete
At this makes the signaling overheads for being used for transmission small data packets bigger, it is contemplated that the user terminal data of MTC or NB-IoT is huge
Greatly, more serious signaling overheads is resulted in；Signaling overheads excessive simultaneously also results in unnecessary user terminal energy consumption.In order to
It makes it possible to complete the transmission of small data packets with less signaling overheads, and realizes user terminal (User Equipment, UE)
Energy conservation, version 15 small data transmission enhancing in, propose UE can not enter wireless heterogeneous networks (Radio Resource
Control, RRC) connected state realizes that data are transmitted, such as in the random access procedure by small data and random accessing message 3
It sends together.In the common recognition that current 3GPP reaches, several conditions that UE is sent according to current data are to determine whether using small
Data transmission mechanism carries out data transmission, for example whether network side is configured with whether the parameter of small data transmission, UE support decimal
According to transmission, whether the data volume of small data to be sent is less than or equal to configured threshold value etc..Small data transmission block size
Threshold value is configured by base station, only when the data volume that UE will be transmitted is less than or equal to the transport block size threshold value,
Small data transmission mechanism can be used.Each enhancing covering grade can correspond to a transport block size threshold value.In addition, for small
Data transmit used in random access preamble be also can each enhancing covering grade configured, and with traditional non-small data
Whether random access preamble used in transmission mechanism distinguishes, that is to say, that needed using small data transmission mechanism based on UE institute
Parameter corresponding to corresponding enhancing covering grade judges.In the conclusion that current 3GPP RAN2 meeting is reached, UE RRC
Layer decides whether using small data transmission mechanism, and the enhancing covering grade of UE is determined by MAC layer, in such case
Under, need MAC layer and RRC synergy could be completed whether to use the determination of small data transmission mechanism.
The disclosure aim to solve the problem that based on enhancing covering grade system in how to realize UE MAC layer and rrc layer interaction with
Realize the problem of whether using the decision of small data transmission mechanism.
Summary of the invention
According to the disclosure in a first aspect, providing a kind of method in user equipment (UE), comprising: in wireless heterogeneous networks
Rrc layer, determination will initiate early time data transmission EDT；The first instruction information is sent to media access control MAC layer in rrc layer, is referred to
Show that MAC layer initiates the random access procedure for being used for EDT；And it initiates to be used in response to receiving the first instruction information in MAC layer
The random access procedure of EDT.
In embodiment, it is the Reference Signal Received Power RSRP for being at least partially based on measurement that the determination, which will initiate EDT,
It is performed.
In embodiment, the above method further include: when enhancing covering grade is climbed, in the data that MAC layer will be transmitted
Measure with climb after enhancing covering grade corresponding to transport block size threshold value be compared；And when the data volume to be transmitted
When greater than transport block size threshold value corresponding to the enhancing covering grade after climbing, the second instruction is sent to rrc layer in MAC layer
Information, instruction EDT failure；Or when the data volume to be transmitted is less than or equal to transmission corresponding to enhancing covering grade after climbing
When block size threshold value, EDT is continued to execute in MAC layer.
In embodiment, the above method further include: when enhancing covering grade and climbing, in MAC layer by the enhancing after climbing
Covering grade is compared with the maximum enhancing covering grade of EDT；Enhancing covering grade most increasing higher than EDT after climbing
When strong covering grade, second indication information, instruction EDT failure are sent to rrc layer in MAC layer；Or enhancing covering after climbing
When maximum of the grade less than or equal to EDT enhances covering grade, EDT is continued to execute in MAC layer.
In embodiment, the above method further include: in rrc layer in response to receiving second indication information, return back to non-EDT
Operation.
In embodiment, the above method further include: send third to MAC layer in rrc layer and indicate that information, instruction MAC layer are returned
Fall back on non-EDT operation；And the random access procedure of non-EDT is executed in response to receiving third instruction information in MAC layer.
In embodiment, the maximum enhancing covering grade of the EDT is included in the first instruction information.
In embodiment, the above method further include: when enhancing covering grade is climbed, send the 4th to rrc layer in MAC layer
Indicate the enhancing covering grade after information, instruction are climbed；In rrc layer in response to receiving the 4th instruction information, will transmit
Data volume with climb after enhancing covering grade corresponding to transport block size threshold value be compared；And when the number to be transmitted
When transport block size threshold value corresponding to the enhancing covering grade being greater than after climbing according to amount, third is sent to MAC layer in rrc layer
Indicate information, instruction EDT failure；Or when the data volume to be transmitted is less than or equal to corresponding to enhancing covering grade after climbing
When transport block size threshold value, the 5th instruction information is sent to MAC layer in rrc layer, instruction MAC layer continues to execute EDT.
In embodiment, the above method further include: in MAC layer in response to receiving third instruction information, execute non-EDT's
Random access procedure；Or EDT is continued to execute in response to receiving the 5th instruction information in MAC layer.
According to the second aspect of the disclosure, a kind of user equipment (UE), including transceiver, processor and memory are provided,
The memory stores the executable instruction of the processor, so that the UE executes the method according to above-mentioned first aspect.
Detailed description of the invention
By the detailed description below in conjunction with attached drawing, above and other feature of the disclosure be will become more apparent,
In:
Fig. 1 shows the flow chart of the method in the user equipment (UE) according to the embodiment of the present disclosure；And
Fig. 2 shows the block diagrams according to the user equipment of the embodiment of the present disclosure.
Specific embodiment
According in conjunction with attached drawing to the described in detail below of disclosure exemplary embodiment, other aspects, the advantage of the disclosure
Those skilled in the art will become obvious with prominent features.
In the disclosure, term " includes " and " containing " and its derivative mean including rather than limit；Term "or" is packet
Containing property, mean and/or.
In the present specification, following various embodiments for describing disclosure principle only illustrate, should not be with any
Mode is construed to limitation scope of disclosure.Referring to attached drawing the comprehensive understanding described below that is used to help by claim and its equivalent
The exemplary embodiment for the disclosure that object limits.Described below includes a variety of details to help to understand, but these details are answered
Think to be only exemplary.Therefore, it will be appreciated by those of ordinary skill in the art that without departing substantially from the scope of the present disclosure and spirit
In the case where, embodiment described herein can be made various changes and modifications.In addition, for clarity and brevity,
The description of known function and structure is omitted.In addition, running through attached drawing, same reference numbers are used for identity function and operation.
Hereafter using LTE mobile communication system and its subsequent evolution version as sample application environment, root has been described in detail
According to multiple embodiments of the disclosure.It should be noted, however, that the present disclosure is not limited to following implementation, but it is applicable
In more other wireless communication systems, as can be used for 5G next generation wireless communication in NB-IoT system, in MTC system
In system (New Radio, NR).
Base station in the disclosure can be any type base station, and comprising Node B, enhancing base station eNB, it is logical to be also possible to 5G
Believe system base-station gNB or micro-base station, femto base station, macro base station, Home eNodeB etc.；The cell is also possible to above-mentioned any
Cell under type of base station.In the disclosure, under the premise of without clearly stating, coverage enhancement grade (Coverage
Enhancement level) it is equal to enhancing covering grade (Enhanced Coverage level).
Work can also be combined between different embodiments.
Below first pair this disclosure relates to some concepts and be illustrated.It is worth noting that, in the following description
Some names be only that example is illustrative and not restrictive, other names can also be made.
Enhancing covering user (User Equipment, UE): refer to that the UE in enhancing covering, i.e. UE needs pass through enhancing
Covering function/mechanism is linked into cell or network.
Enhancing covering grade: will need the degree for enhancing covering to be divided into multiple enhancing covering grades in enhancing soverlay technique,
Such as in NB-IoT, enhancing covering grade can be grade 0~3.In some enhancing covering methods, each enhancing covering
Grade can correspond to a set of different wireless parameter configuration, as random access configures (such as PRACH (Physical Random
Access CHannel) resource).In newest 3GPP protocol specification (technical specification 36.321ve40), the media of UE are accessed
(Medium Access Control) layer is controlled when initiating random access, it can be according in measured RSRP and system information
What is received judges the enhancing covering grade of UE for the determining RSRP threshold value for enhancing covering grade, and according to identified increasing
Strong covering grade selects corresponding random access resource (such as random access preamble (referred to as leading)) and parameter (such as random access
Response window size) carry out initiating random access procedure.Each enhancing covering grade can also include a leading maximum transmitted time
Several configurations.In a random access procedure, before being successfully received random access response, when UE is covered using an enhancing
The corresponding random access resource of lid grade n and parameter initiation random access, which send leading number and meet or exceed currently to enhance, to be covered
When leading maximum transmission times corresponding to lid grade n, UE will be considered that current enhancing covering grade is improper, at this point, UE recognizes
Enhancing covering grade for it is that next enhancing covering grade enhances covering grade n+1.In preamble transmission next time, then
Using the corresponding random access resource of enhancing covering grade n+1 and parameter, the increasing in this random access procedure is claimed in the disclosure
Strong covering grade is incremented by enhancing covering grade and climbs (ramp).
Random access response (Random Access Response, RAR): the Article 2 message in random access procedure.
Base station can be after receiving the random access preamble of UE, by sending accidental access response message come to the random access preamble
Reception responded.It include time advance domain, uplink license domain (uplink grant), UE mark in accidental access response message
Field of awareness etc..
Message 3: the Article 3 message in random access procedure.In the disclosure, the system of message 3 refers to that UE includes in RAR
Transmitted uplink on the indicated ascending resource of uplink license.Both can refer in random access procedure competition-based
Article 3 transmission, can also refer to based on first uplink after non-competing random access procedure.
User face prioritization scheme and control plane prioritization scheme:
In fact, the data transmission scheme of two kinds of optimization has been supported in the communication system before R15, to be used to drop
The signaling overheads and UE energy consumption of low data transmission, claim control plane honeycomb evolution packet service to optimize (cp-CIoT-EPS-
Optimisation) and user face honeycomb evolution packet service optimizes (up-CIoT-EPS-Optimisation).In control plane
In honeycomb evolution packet service prioritization scheme, the data of application layer as a Non-Access Stratum (Non Access Stratum,
NAS) data packet is included on the Signaling Radio Bearer (Signalling Radio Bearer, SRB) of control plane and transmits, described
Signaling Radio Bearer refers to SRB1 or SRB1bis before R14, as UE is built after completing random access procedure in RRC connection
It is vertical to complete to be sent in message comprising a NAS data packet.This prioritization scheme may be simply referred to as control plane prioritization scheme or control
Face scheme processed.In the honeycomb evolution packet service prioritization scheme of user face, still applied as the data transmission in legacy system
The data of layer are transmitted on the Data Radio Bearer ((user) Data Radio Bearer, DRB) under RRC connection status, but
After data are transmitted, UE hangs up (suspend) RRC and connect with eNB (to disappear by the inclusion of the RRC Connection Release for hanging up instruction
Breath is to indicate), UE context is saved, into RRC idle state.When UE will carry out data transmission, UE initiates RRC to eNB and connects
It connects and restores process (in the process, UE sends RRC connection recovery request message to base station to initiate the connection recovery, and base station is to UE
Send RRC connection restore message come indicate its restore RRC connection, then UE to base station feedback RRC connection recovery completion message with
Responded) because saving UE context on UE and eNB, its RRC connection, DRB and safety can be restored by the process,
Without re-establishing RRC connection, DRB and safety.This scheme can also abbreviation user face prioritization scheme or user face scheme.Wherein
UE saves the RRC Idle state of UE context, although also referred to as RRC Idle state, can actually regard as a RRC Idle state and
One intermediate state of connected state.This intermediate state, in 5G NR system, it is believed that be the inactive shape of RRC of its definition
State (RRC_inactive).
Early time data transmits (Early Data Transmission, EDT):
Small data transmission prioritization scheme in R15 is done based on above two prioritization scheme and for the characteristic of small data transmission
Further optimization.For transmitting uplink data, the content of optimization is mainly in the random access procedure with message 3
Small data is transmitted together, because can complete at the time of earlier for this optimal way compares conventional data transmission mode
Data transmission, so referred to as early time data transmits, in the disclosure, small data (small data or small packet) can be equal
In early time data (early data).In the cell for supporting EDT prioritization scheme, base station is broadcasted by system information and initiates EDT
Used physical accidental access-in resource such as random access preamble and transport block size (Transport Block Size,
TBS) threshold value.Random access resource used in the TBS threshold value and/or EDT is configured to each enhancing covering grade
, i.e., each enhancing covering grade corresponds to an EDT transport block size threshold value and/or random access parameter (such as physical accidental
Access-in resource or random access preamble group).
The process of EDT is briefly described below.
1. UE judges whether that the condition for meeting EDT, such as the TBS comprising data packet are when UE will carry out uplink
It is no to be less than or equal to TBS threshold value corresponding to current enhancing covering grade, if it is, UE using EDT it is specific it is leading
It is initiated in the specific Physical Random Access Channel resource of EDT (Physical Random Access Channel, PRACH) random
Access procedure.
2. it is specifically leading that base station receives EDT in the specific PRACH resource of EDT, learn that UE is initiating EDT mistake
Journey, then base station can distribute the uplink license that can be used for small data transmission in RAR.
3. after receiving RAR, UE judges whether the license of the uplink in RAR is large enough to hold entire small data packets, if it is,
Small data packets are contained in message 3 UE and RRC information carries out uplink in the corresponding resource of uplink license together；If
No, then UE retracts (fallback) to the non-EDT process of tradition, i.e., small data packets is not included in message 3 and is transmitted together, that is, disappeared
RRC information is only transmitted in breath 3, to request RRC connection foundation/recovery, it is expected that transmitting data after RRC connection foundation/recovery.
Preferably, the entire transmission block comprising small data packets is referred to comprising small data and RRC information in message 3 and its is right
Entire transmission block including the MAC header answered.Alternatively, the entire transmission block comprising small data packets refers to small data packets
Data convergence protocol (Packet Data Covergence Protocol, PDCP) service data unit (Service Data
Unit, SDU) or PDCP PDU and RRC information.
In the following embodiments of the disclosure, (indicate/indication) and notice (notify/ are indicated
Notification) or notify/information (inform/information) can be interchanged.UE can refer to NB-IoT UE, bandwidth drop
Low low complex degree (Bandwidth reduced Low complexity, BL) UE covers (enhanced in enhancing
Coverage UE in), it is also possible to other UE such as 5G NR UE.
UE is specifically described in the following embodiments of the disclosure how based on the enhancing in enhancing covering grade and random process
Covering grade is climbed come the method for determining whether (continuation) using EDT mechanism, and following embodiments through the invention, UE can be with base
Determine whether in current covering grade using EDT, and select corresponding random access resource leading, so that receive leading
Base station according to this it is leading come know UE whether use EDT and its enhancing covering grade, thus in RAR and subsequent transmission process
It distributes suitable uplink license and its configured transmission such as transmits number of repetition.
In the disclosure, the data that will be transmitted refer to data available total amount to be sent in uplink caching,
Or it is described as in uplink caching data to be sent and is formed by its size of MAC PDU plus its caused MAC header.Alternatively
Ground also can refer to the PDCP SDU/PDU in uplink caching.
Fig. 1 shows the flow chart of the method 100 in the user equipment (UE) according to the embodiment of the present disclosure.Method 100 includes
Following steps.
In step S110, in radio resource control RRC layer, determination will initiate early time data transmission EDT.
In step S120, the first instruction information is sent to media access control MAC layer in rrc layer, instruction MAC layer is initiated to use
In the random access procedure of EDT.
The random access procedure for being used for EDT is initiated in MAC layer in response to receiving the first instruction information in step S130.
In a non-limiting example, in step s 110, determination will initiate the reference that EDT can be at least partially based on measurement
Signal reception power RSRP is executed.
In a non-limiting example, for example, see following example 1, method 100 can also include: when enhancing covering grade is climbed
When rising, data volume that MAC layer will be transmitted with climb after enhancing covering grade corresponding to transport block size threshold value into
Row compares.When the data volume to be transmitted is greater than transport block size threshold value corresponding to the enhancing covering grade after climbing,
MAC layer sends second indication information, instruction EDT failure to rrc layer.The increasing after data volume to be transmitted, which is less than or equal to, climbs
When transport block size threshold value corresponding to strong covering grade, EDT is continued to execute in MAC layer.
In a non-limiting example, for example, see following example 3, method 100 can also include: when enhancing covering grade is climbed
When rising, the enhancing covering grade after MAC layer will climb is compared with the maximum enhancing covering grade of EDT.After climbing
When enhancing maximum enhancing covering grade of the covering grade higher than EDT, second indication information, instruction are sent to rrc layer in MAC layer
EDT failure.When maximum of the enhancing covering grade less than or equal to EDT after climbing enhances covering grade, continue to hold in MAC layer
Row EDT.
In a non-limiting example, method 100 can also include: to return in rrc layer in response to receiving second indication information
Fall back on non-EDT operation.
In a non-limiting example, method 100 can also include: to send third instruction information to MAC layer in rrc layer, refer to
Show that MAC layer return back to non-EDT operation；And connecing at random for non-EDT is executed in response to receiving third instruction information in MAC layer
Enter process.
In a non-limiting example, the maximum enhancing covering grade of the EDT can be included in the first instruction information.
In a non-limiting example, for example, see following example 2, method 100 can also include: when enhancing covering grade is climbed
When rising, the 4th instruction information is sent to rrc layer in MAC layer, indicates the enhancing covering grade after climbing；And it is responded in rrc layer
In receive the 4th instruction information, the data volume that will be transmitted with climb after enhancing covering grade corresponding to transport block size
Threshold value is compared.Transport block size thresholding corresponding to enhancing covering grade after the data volume to be transmitted, which is greater than, climbs
When value, third is sent to MAC layer in rrc layer and indicates information, instruction EDT failure.It is climbed when the data volume to be transmitted is less than or equal to
When transport block size threshold value corresponding to the enhancing covering grade after rising, the 5th instruction information is sent to MAC layer in rrc layer,
Instruction MAC layer continues to execute EDT.
In a non-limiting example, method 100 can also include: to hold in MAC layer in response to receiving third instruction information
The random access procedure of the non-EDT of row；Or EDT is continued to execute in response to receiving the 5th instruction information in MAC layer.
The specific implementation of method 100 is described below in conjunction with specific example.
Example 1:
In this example, the UE of EDT is supported to determine whether that the operation carried out data transmission using EDT mechanism includes following one
Or it is multiple:
Operation 1:UE rrc layer determines whether to initiate EDT according at least to measured RSRP.Here, it is determined whether initiate
EDT can also be according to other conditions.
" other conditions " may include the one or more of following conditions, but be not intended to limit following, and UE is at following
It is determined when part meets and initiates EDT:
Condition 1: Non-Access Stratum NAS request is that EDT establishes a RRC connection and UE supports the EDT based on control plane scheme；
Condition 2:NAS request is that EDT restores RRC connection and UE supports EDT and the UE preservation based on user face scheme useful
In the security parameter values of EDT.The security parameter values can be nextHopChainingCount value.
Condition 3:NAS indicates that the request (foundation/recovery RRC connection request) is suitable for EDT.NAS can be asked based on described
The reasons why asking or request type are (as only type, mobile terminating are initiated in data, non-signaling, SMS service, type of call, movement
Type etc.) come determine whether be suitable for EDT.The present disclosure is not limited to these situations.
Condition 4: containing the PRACH configuration for EDT in system information block SIB type 2, i.e. UE resident cell is current
It supports EDT transmission and broadcasts the parameter configuration of EDT transmission.
Condition 5: the data volume to be sent once is transmitted and can have been passed, that is, it is current that the data volume to be sent is less than or equal to UE
Enhancing covering grade corresponding to transport block size threshold value.
The use that the UE current enhancing covering grade can be obtained according to measured RSRP and from system information by RRC
Enhance the RSRP threshold value of covering grade in determination to determine.It is exemplified below: if system supports the range of enhancing covering grade
For 0~N, then if being configured with the RSRP thresholding th_N of enhancing covering grade N and measured RSRP is less than threshold value th_N
And UE supports enhancing covering grade N, then UE or UE rrc layer thinks that it is in enhancing covering grade N；If being otherwise configured with enhancing
The RSRP thresholding th_N-1 of covering grade N-1 and measured RSRP are less than threshold value th_N-1 and UE supports enhancing covering etc.
Grade N-1, then UE or UE rrc layer thinks that it is in enhancing covering grade N-1；If being otherwise configured with enhancing covering grade N-2's
RSRP thresholding th_N and measured RSRP are less than threshold value th_N-2 and UE supports enhancing covering grade N-2, then UE or UE
Rrc layer thinks that it is in enhancing covering grade N-2；And so on, if being otherwise configured with the RSRP thresholding of enhancing covering grade 1
Th_1 and measured RSRP are less than threshold value th_1, then UE or UE rrc layer thinks that it is in enhancing covering grade 1；Otherwise
Think that it is in enhancing covering grade 0.
Operation 2: if RRC determines that initiation EDT, even UE are initiating/carrying out EDT or UE initiating/and carrying out in operation 1
RRC connection recovery/foundation of EDT, then RRC sends the first instruction information to MAC layer.The first instruction information is used for MAC
Layer informs that rrc layer has initiated EDT transmission and/or instruction MAC layer initiates the random access procedure for being used for EDT.It is described that " RRC is sent
First instruction information " also can be described as " RRC sends the instruction of EDT random access " or " RRC informs that MAC layer initiates EDT " etc., this public affairs
It opens and does not limit its description.
Operation 3: if receiving the first instruction information in operation 2 from rrc layer, MAC layer initiate for EDT with
Machine access procedure.It is described to initiate to refer to for the random access procedure of EDT to initiate using the random access parameter for being exclusively used in EDT
Random access procedure.Here random access parameter can be physical accidental access-in resource, random access preamble, RAR window size,
Contention resolved timer, 3 maximum transmitted of message (re-transmission) number, uplink license (or message 3 is transmitted) permitted transmission in RAR
Block size etc..
Because each enhancing covering grade can correspond to one leading group, need when UE MAC layer is led before sending according to current
The enhancing covering grade of UE selects one from corresponding to the enhancing covering grade leading group.In operation 3, it is preferable that institute
The enhancing covering grade for stating current UE can be UE and be increased according to acquired in measured RSRP and system information for determining
The RSRP threshold value of strong covering grade is compared identified (referring to 3GPP technical specification document 36.321ve0), alternatively,
It is also possible to what MAC layer was obtained from rrc layer, i.e., rrc layer can also be by the enhancing of identified current UE in operation 1 in operation 2
Covering grade informs MAC layer.
Operation 4: in the random access procedure for EDT, when RAR receives unsuccessful, if enhancing covering grade occurs
It climbs, it is big that MAC layer compares transmission block corresponding to the data volume that will be transmitted and the enhancing covering grade of current (after climbing) UE
Small threshold value (PRACH-TBS-EDT) determines whether next preamble retransmission is used for EDT.If the data volume that will be transmitted is greater than
When the transport block size threshold value of corresponding enhancing covering grade, MAC layer sends (or instruction) second indication information to rrc layer,
Optionally, MAC layer is in the selection for receiving third instruction information (see operation 5) Shi Jixu random access resource from rrc layer.Institute
State second indication information be used to indicate the above-mentioned total amount of data that will be transmitted can not be into greater than the transport block size threshold value
The case where row EDT, or can also to be directly described as EDT not applicable, needs to be implemented rollback or EDT unsuccessfully etc..If will transmit
Data volume when being less than or equal to the transport block size threshold value of corresponding enhancing covering grade, MAC continues for EDT's
Random access procedure is the selection for continuing random access resource, and MAC layer does not send second indication information to rrc layer at this time.It is above-mentioned
The selection for continuing random access resource in the process further describes are as follows: if MAC layer does not send second indication information to RRC
Layer, then continue the selection (random access resource here refers to the random access resource for EDT) of random access resource, otherwise
Carry out selection (the random access money here of random access resource again when receiving the third from rrc layer and indicating information
Source, which refers to, is not used in the dedicated random access resource of EDT).
The enhancing covering grade, which is climbed, can be described as: as the leading transmission count value (PREAMBLE_ of variable coverage enhancement
TRANSMISSION_COUNTER_CE) it is equal to the maximum leading trial time of enhancing covering corresponding to current UE enhancing covering grade n
When number (maxNumPreambleAttemptCE) adds 1, if UE and serving cell all support next enhancing covering grade n+1,
UE thinks that the enhancing covering grade of current UE is next enhancing covering grade n+1.
Alternatively, the second indication information further includes the enhancing covering grade of current UE.
Operation 5: during being used for the ongoing RRC of EDT at one, the second instruction letter from MAC layer is received
When breath, rrc layer, which determines, executes rollback, cancels the EDT initiated.The rollback is referred to from the current process for EDT
It is return back to the random access procedure and/or RRC connection foundation/recovery process of non-EDT, using the random access stream of the non-EDT of tradition
Journey or RRC connection foundation/recovery process enter RRC connected state to realize that data are transmitted.Alternatively, operation 5 further include RRC to
MAC layer sends third and indicates that information, the third instruction information are used to indicate MAC layer and return back to non-EDT operation.More precisely,
It is used to indicate MAC layer and random access procedure is executed using non-EDT mode of operation (continuation).The third instruction information is alternatively referred to as
Non- EDT random access instruction or the instruction that retracts, the disclosure do not limit its title.
Operation 6: when receiving the third instruction information from rrc layer, MAC execution return back to non-EDT, continues to be used for
The random access procedure of non-EDT.It is described referred to for the random access of non-EDT it is dedicated random using EDT is not used in
Access parameter executes random access procedure.
It alternatively, further include that, if MAC layer has received the first instruction information from rrc layer, MAC layer is recognized in example 1
It is for EDT for random access procedure；Otherwise, if MAC layer does not receive the first instruction information or MAC from rrc layer
Layer has received the instruction information of the third from rrc layer, then MAC layer thinks that random access procedure is not used in EDT.
It is worth noting that, MAC layer is in the traditional random access for returning back to non-EDT from the random access procedure for EDT
When process, the random access procedure is the same random access procedure, i.e., the associated counter in random access procedure is as before
Transmission times etc. is led not reset.
Example 2:
Example 2 is differing principally in that in example 2 when enhancing covering grade occurs and changes/climbs with example 1 according to general
The comparison of the transport block size threshold value of the data volume to be transmitted and corresponding enhancing covering grade determines whether to continue EDT process
Determine that operation is completed in rrc layer, and in example 1, which completed in MAC layer.
In this example, the UE of EDT is supported to determine whether that the operation carried out data transmission using EDT mechanism includes following one
Or it is multiple:
Operation 1:UE rrc layer determines whether to initiate EDT according at least to measured RSRP.Here, it is determined whether initiate
EDT can also be according to other conditions.
" other conditions " may include the one or more of following conditions, but be not intended to limit following, and UE is at following
It is determined when part meets and initiates EDT:
Condition 1: Non-Access Stratum NAS request is that EDT establishes a RRC connection and UE supports the EDT based on user face scheme；
Condition 2:NAS request is that EDT restores RRC connection and UE supports EDT and the UE preservation based on user face scheme useful
In the security parameter values of EDT.The security parameter values can be nextHopChainingCount value.
Condition 3:NAS indicates that the request (foundation/recovery RRC connection request) is suitable for EDT.NAS can be asked based on described
The reasons why asking or request type are (as only type, mobile terminating are initiated in data, non-signaling, SMS service, type of call, movement
Type etc.) come determine whether be suitable for EDT.The present disclosure is not limited to these situations.
Condition 4: containing the PRACH configuration for EDT in system information block SIB type 2, i.e. UE resident cell is current
It supports EDT transmission and broadcasts the parameter configuration of EDT transmission.
Condition 5: the data volume to be sent once is transmitted and can have been passed, i.e., data to be sent add it in uplink caching
Caused MAC header is formed by transmission block corresponding to its size of MAC PDU enhancing covering grade current less than or equal to UE
Size threshold value.
The use that the UE current enhancing covering grade can be obtained according to measured RSRP and from system information by RRC
Enhance the RSRP threshold value of covering grade in determination to determine.It is exemplified below: if system supports the range of enhancing covering grade
For 0~N, then if being configured with the RSRP thresholding th_N of enhancing covering grade N and measured RSRP is less than threshold value th_N
And UE supports enhancing covering grade N, then UE or UE rrc layer thinks that it is in enhancing covering grade N；If being otherwise configured with enhancing
The RSRP thresholding th_N-1 of covering grade N-1 and measured RSRP are less than threshold value th_N-1 and UE supports enhancing covering etc.
Grade N-1, then UE or UE rrc layer thinks that it is in enhancing covering grade N-1；If being otherwise configured with enhancing covering grade N-2's
RSRP thresholding th_N and measured RSRP are less than threshold value th_N-2 and UE supports enhancing covering grade N-2, then UE or UE
Rrc layer thinks that it is in enhancing covering grade N-2；And so on, if being otherwise configured with the RSRP thresholding of enhancing covering grade 1
Th_1 and measured RSRP are less than threshold value th_1, then UE or UE rrc layer thinks that it is in enhancing covering grade 1；Otherwise
Think that it is in enhancing covering grade 0.
Operation 2: if RRC determines that initiation EDT, even UE are initiating/carrying out EDT or UE initiating/and carrying out in operation 1
RRC connection recovery/foundation of EDT, then RRC sends the first instruction information to MAC layer.The first instruction information is used for MAC
Layer informs that rrc layer has initiated EDT transmission and/or instruction MAC layer initiates the random access procedure for being used for EDT.It is described that " RRC is sent
First instruction information " also can be described as " RRC sends the instruction of EDT random access " or " RRC informs that MAC layer initiates EDT " etc., described
First instruction information can be also simply referred to as EDT instruction, and the disclosure does not limit its description.
Operation 3: if receiving the first instruction information in operation 2 from rrc layer, MAC layer initiate for EDT with
Machine access procedure.It is described to initiate to refer to for the random access procedure of EDT to initiate using the random access parameter for being exclusively used in EDT
Random access procedure.Here random access parameter can be physical accidental access-in resource, random access preamble, RAR window size,
Contention resolved timer, 3 maximum transmitted of message (re-transmission) number, uplink license (or message 3 is transmitted) permitted transmission in RAR
Block size etc..
Because each enhancing covering grade can correspond to one leading group, need when UE MAC layer is led before sending according to current
The enhancing covering grade of UE selects one from corresponding to the enhancing covering grade leading group.In operation 3, it is preferable that institute
The enhancing covering grade for stating current UE can be UE and be increased according to acquired in measured RSRP and system information for determining
The RSRP threshold value of strong covering grade is compared identified (referring to 3GPP technical specification document 36.321ve0), alternatively,
It is also possible to what MAC layer was obtained from rrc layer, i.e., rrc layer can also be by the enhancing of identified current UE in operation 1 in operation 2
Covering grade informs MAC layer.
Operation 4: in the random access procedure for EDT, when RAR receives unsuccessful, if enhancing covering grade occurs
It climbs, MAC layer sends (or instruction) the 4th instruction information to rrc layer.The 4th instruction information, which is used to indicate, to be enhanced
Covering grade is changed/is climbed, or is interpreted as whether request continues EDT.Optionally, MAC layer is receiving the third from rrc layer
Indicate the selection of information (see operation 5) Shi Jixu random access resource, that is to say, that MAC layer is before receiving third instruction information
Ongoing random access procedure is interrupted, or is described as the selection that MAC layer postpones random access resource, is come from until receiving
The third of rrc layer indicates information.
The enhancing covering grade, which is climbed, can be described as: as the leading transmission count value (PREAMBLE_ of variable coverage enhancement
TRANSMISSION_COUNTER_CE) it is equal to the maximum leading trial time of enhancing covering corresponding to current UE enhancing covering grade n
When number (maxNumPreambleAttemptCE) adds 1, if UE and serving cell all support next enhancing covering grade n+1,
UE thinks that the enhancing covering grade of current UE is next enhancing covering grade n+1.
Alternatively, the 4th instruction information further includes the enhancing covering grade of current UE.
Operation 5: during being used for the ongoing RRC of EDT at one, the 4th instruction letter from MAC layer is received
When breath, rrc layer compares/reappraises corresponding to the data volume that will be transmitted and the enhancing covering grade of current (after climbing) UE
Whether transport block size threshold value (PRACH-TBS-EDT) is used for EDT with the next random access of determination/RRC process.If will
When the data volume to be transmitted is greater than the transport block size threshold value of corresponding enhancing covering grade, rrc layer determination executes rollback, takes
Disappear the EDT initiated.The rollback refers to that the process for EDT from current return back to the random access procedure of non-EDT
And/or RRC connection foundation/recovery process, using the non-EDT of tradition random access procedure or RRC connection foundation/recovery process into
Enter RRC connected state to realize that data are transmitted.It optionally, further include that third instruction information is sent to MAC layer；The third instruction letter
Breath is used to indicate MAC layer and return back to non-EDT operation.More precisely, MAC layer is used to indicate using non-EDT mode of operation (continuation)
Execute random access procedure.The third instruction information is alternatively referred to as non-EDT random access instruction or the instruction that retracts, and the disclosure is simultaneously
Its title is not limited.If the data volume that will be transmitted is less than or equal to the transport block size threshold value of corresponding enhancing covering grade
When, RRC continues the process for EDT, and to the 5th instruction information of MAC layer instruction, is used to indicate MAC layer and continues on for
The random access procedure of EDT.The 5th instruction information can actually be equal to the first instruction information, contribute to indicate
MAC random access procedure is or to be described as being currently at during EDT for EDT.
Operation 6: when MAC layer receives the instruction information of the third from rrc layer or the 5th instruction information, MAC layer continues
The selection of random access resource continues ongoing random access procedure.Also can be described as, MAC layer postpone (delay) into
The selection of row random access resource, until it receives the instruction information from rrc layer, (third indicates information or the 5th instruction letter
Breath).The selection for continuing random access resource further describes are as follows: if MAC receive the 5th instruction information, continue with
The selection (random access resource here refers to the random access resource for EDT) of machine access-in resource comes if otherwise receiving
Indicating then to carry out the selection of random access resource when information from the third of rrc layer, (random access resource here, which refers to, is not used in EDT
Dedicated random access resource).In this operation, when receiving the third instruction information from rrc layer, MAC execution is return back to
Non- EDT continues the random access procedure for non-EDT.It is described referred to for the random access of non-EDT using not
Random access procedure is executed for the dedicated random access parameter of EDT.
Alternatively, further include in example 2, if MAC layer has received the first instruction information or the 5th instruction from rrc layer
Information, then MAC layer thinks that random access procedure is for EDT；Otherwise, if MAC layer has received the instruction of the third from rrc layer
Information, then MAC layer thinks that random access procedure is not used in EDT.
It is worth noting that, MAC layer is in the traditional random access for returning back to non-EDT from the random access procedure for EDT
When process, the random access procedure is the same random access procedure, i.e., the associated counter in random access procedure is as before
Transmission times etc. is led not reset.
Example 3
Example 3 and example 1 be differing principally in that in example 3 when enhancing covering grade occurs changing/climbing, MAC layer
Determined whether to continue EDT process according to the first instruction information and the enhancing covering grade of current (after climbing) UE；And in example 1
In, MAC is according to the transport block size threshold value of the data volume that will be transmitted and the enhancing covering grade of current (after climbing) UE
Compare to determine whether to continue EDT process.
In this example, the UE of EDT is supported to determine whether that the operation carried out data transmission using EDT mechanism includes following one
Or it is multiple:
Operation 1:UE rrc layer determines whether to initiate EDT according at least to measured RSRP.Here, it is determined whether initiate
EDT can also be according to other conditions.
" other conditions " may include the one or more of following conditions, but be not intended to limit following, and UE is at following
It is determined when part meets and initiates EDT:
Condition 1: Non-Access Stratum NAS request is that EDT establishes a RRC connection and UE supports the EDT based on user face scheme；
Condition 2:NAS request is that EDT restores RRC connection and UE supports EDT and the UE preservation based on user face scheme useful
In the security parameter values of EDT.The security parameter values can be nextHopChainingCount value.
Condition 3:NAS indicates that the request (foundation/recovery RRC connection request) is suitable for EDT.NAS can be asked based on described
The reasons why asking or request type are (as only type, mobile terminating are initiated in data, non-signaling, SMS service, type of call, movement
Type etc.) come determine whether be suitable for EDT.The present disclosure is not limited to these situations.
Condition 4: containing the PRACH configuration for EDT in system information block SIB type 2, i.e. UE resident cell is current
It supports EDT transmission and broadcasts the parameter configuration of EDT transmission.
Condition 5: the data volume to be sent once is transmitted and can have been passed, that is, it is current that the data volume to be sent is less than or equal to UE
Enhancing covering grade corresponding to transport block size threshold value.
The use that the UE current enhancing covering grade can be obtained according to measured RSRP and from system information by RRC
Enhance the RSRP threshold value of covering grade in determination to determine.It is exemplified below: if system supports the range of enhancing covering grade
For 0~N, then if being configured with the RSRP thresholding th_N of enhancing covering grade N and measured RSRP is less than threshold value th_N
And UE supports enhancing covering grade N, then UE or UE rrc layer thinks that it is in enhancing covering grade N；If being otherwise configured with enhancing
The RSRP thresholding th_N-1 of covering grade N-1 and measured RSRP are less than threshold value th_N-1 and UE supports enhancing covering etc.
Grade N-1, then UE or UE rrc layer thinks that it is in enhancing covering grade N-1；If being otherwise configured with enhancing covering grade N-2's
RSRP thresholding th_N and measured RSRP are less than threshold value th_N-2 and UE supports enhancing covering grade N-2, then UE or UE
Rrc layer thinks that it is in enhancing covering grade N-2；And so on, if being otherwise configured with the RSRP thresholding of enhancing covering grade 1
Th_1 and measured RSRP are less than threshold value th_1, then UE or UE rrc layer thinks that it is in enhancing covering grade 1；Otherwise
Think that it is in enhancing covering grade 0.
Operation 2: if RRC determines that initiation EDT, even UE are initiating/carrying out EDT or UE initiating/and carrying out in operation 1
RRC connection recovery/foundation of EDT, then RRC sends the first instruction information to MAC layer.The first instruction information is used for MAC
Layer informs that rrc layer has initiated EDT transmission and/or instruction MAC layer initiates the random access procedure for being used for EDT.It is described that " RRC is sent
First instruction information " also can be described as " RRC sends the instruction of EDT random access " or " RRC informs that MAC layer initiates EDT " etc., this public affairs
It opens and does not limit its description.
In this example, the first instruction information further includes that the maximum enhancing covering grade of EDT can be used.This can be used
The maximum enhancing covering grade of EDT is used to indicate the maximum enhancing that EDT parameter can be used to initiate/continue random access procedure and covers
Lid grade.It is further appreciated that are as follows: if the enhancing covering grade of current UE is less than or equal to the maximum enhancing that EDT can be used
When covering grade, the random access procedure of EDT can be initiated/continue on for, if otherwise the enhancing covering grade of current UE is greater than
When the maximum enhancing covering grade that EDT can be used, the random access procedure of EDT cannot be initiated/continued on for.It is described to adopt
It is received in the data volume and system information that will be transmitted by rrc layer according to current UE with the maximum enhancing covering grade of EDT each
A enhancing covering grade corresponds to transport block size threshold value comparison result to determine.I.e. on the basis for meeting above-mentioned " other conditions "
On, if the data volume that will be transmitted is still big less than or equal to transport block size threshold T n corresponding to enhancing covering grade n
When enhancing transport block size threshold T (n+1) corresponding to covering grade n+1, then RRC thinks that most increasing for EDT can be used
Strong covering grade is n.In another case, if the data volume that will be transmitted is less than or equal to corresponding to enhancing covering grade n
Transport block size threshold T n, when the maximum enhancing covering grade that n is UE and/or serving cell can be supported, then RRC thinks
The maximum enhancing covering grade that EDT can be used is n.
Operation 3: if receiving the first instruction information in operation 2 from rrc layer, MAC layer initiate for EDT with
Machine access procedure.It is described to initiate to refer to for the random access procedure of EDT to initiate using the random access parameter for being exclusively used in EDT
Random access procedure.Here random access parameter can be physical accidental access-in resource, random access preamble, RAR window size,
Contention resolved timer, 3 maximum transmitted of message (re-transmission) number, uplink license (or message 3 is transmitted) permitted transmission in RAR
Block size etc..
Because each enhancing covering grade can correspond to one leading group, need when UE MAC layer is led before sending according to current
The enhancing covering grade of UE selects one from corresponding to the enhancing covering grade leading group.In operation 3, it is preferable that institute
The enhancing covering grade for stating current UE can be UE and be increased according to acquired in measured RSRP and system information for determining
The RSRP threshold value of strong covering grade is compared identified (referring to 3GPP technical specification document 36.321ve0), alternatively,
It is also possible to what MAC layer was obtained from rrc layer, i.e., rrc layer can also be by the enhancing of identified current UE in operation 1 in operation 2
Covering grade informs MAC layer.
Operation 4: in the random access procedure for EDT, when RAR receives unsuccessful, if enhancing covering grade occurs
Climb, the enhancing covering grade of relatively current (after the climbing) UE of MAC layer and the maximum of EDT enhance covering grade (may include
First indicates in information) whether EDT is used for the next preamble retransmission of determination.If the enhancing covering grade of current UE is greater than the
In one instruction information when the included maximum enhancing covering grade that EDT can be used, MAC layer sends (or instruction) the to rrc layer
Two instruction information, optionally, MAC layer are receiving third instruction information (see operation 5) the Shi Jixu random access money from rrc layer
The selection in source.It is not applicable that the second indication information is used to indicate EDT, needs to be implemented rollback or EDT unsuccessfully etc..If current UE
Enhancing covering grade when being less than or equal to the maximum enhancing covering grade that EDT can be used included in the first instruction information,
MAC continues the selection for continuing random access resource for the random access procedure of EDT, and MAC layer is not sent out to rrc layer at this time
Send second indication information.The selection for continuing random access resource in the above process further describes are as follows: if MAC layer is not sent out
Send second indication information to rrc layer, then continuing the selection of random access resource, (random access resource here refers to for EDT
Random access resource), otherwise carry out the choosing of random access resource again when receiving third from rrc layer and indicating information
Select (random access resource here, which refers to, is not used in the dedicated random access resource of EDT).
The enhancing covering grade, which is climbed, can be described as: when the leading transmission count value of variable coverage enhancement
(PREAMBLE_TRANSMISSION_COUNTER_CE) it is equal to enhancing corresponding to current UE enhancing covering grade n
The maximum leading number of attempt (maxNumPreambleAttemptCE) of covering plus when 1, if UE and serving cell all support it is next
Enhance covering grade n+1, then UE thinks that the enhancing covering grade of current UE is next enhancing covering grade n+1.
Alternatively, the second indication information further includes the enhancing covering grade of current UE.
Operation 5: during being used for the ongoing RRC of EDT at one, the second instruction letter from MAC layer is received
When breath, rrc layer, which determines, executes rollback, cancels the EDT initiated.The rollback is referred to from the current process for EDT
It is return back to the random access procedure and/or RRC connection foundation/recovery process of non-EDT, using the random access stream of the non-EDT of tradition
Journey or RRC connection foundation/recovery process enter RRC connected state to realize that data are transmitted.Alternatively, operation 5 further include RRC to
MAC layer sends third and indicates that information, the third instruction information are used to indicate MAC layer and return back to non-EDT operation.More precisely,
It is used to indicate MAC layer and random access procedure is executed using non-EDT mode of operation (continuation).The third instruction information is alternatively referred to as
Non- EDT random access instruction or the instruction that retracts, the disclosure do not limit its title.
Operation 6: when receiving the third instruction information from rrc layer, MAC execution return back to non-EDT, continues to be used for
The random access procedure of non-EDT.It is described referred to for the random access of non-EDT it is dedicated random using EDT is not used in
Access parameter executes random access procedure.
It alternatively, further include that, if MAC layer has received the first instruction information from rrc layer, MAC layer is recognized in example 3
It is for EDT for random access procedure；Otherwise, if MAC layer does not receive the first instruction information or MAC from rrc layer
Layer has received the instruction information of the third from rrc layer, then MAC layer thinks that random access procedure is not used in EDT.
It is worth noting that, MAC layer is in the traditional random access for returning back to non-EDT from the random access procedure for EDT
When process, the random access procedure is the same random access procedure, i.e., the associated counter in random access procedure is as before
Transmission times etc. is led not reset.
Corresponding with the above method 100, present disclose provides a kind of user equipment (UE)s.Fig. 2 shows according to disclosure reality
Apply the block diagram of the UE 200 of example.As shown, UE 200 includes: transceiver 210, processor 220 and memory 230.Transceiver
210 can be used for such as receiving the configuration information of EDT, send random access preamble, receiving random access response.The storage
Device 230 stores the executable instruction of the processor 220, so that the UE 200 executes the above method described in conjunction with Fig. 1
100。
Specifically, the memory 230 stores the executable instruction of the processor 220, so that UE200: wirelessly providing
Source controls rrc layer, and determination will initiate early time data transmission EDT；The first instruction is sent to media access control MAC layer in rrc layer
Information, instruction MAC layer initiate the random access procedure for being used for EDT；And in MAC layer in response to receiving the first instruction information,
Initiate the random access procedure for being used for EDT.
In one example, it is the Reference Signal Received Power for being at least partially based on measurement that the determination, which will initiate EDT,
RSRP is performed.
In one example, the memory 230 also stores the executable instruction of the processor 220, so that UE 200:
When enhancing covering grade is climbed, biography corresponding to the enhancing covering grade in the data volume that MAC layer will be transmitted and after climbing
Defeated block size threshold value is compared；And when the data volume to be transmitted is greater than biography corresponding to enhancing covering grade after climbing
When defeated block size threshold value, second indication information, instruction EDT failure are sent to rrc layer in MAC layer；Or when the data to be transmitted
When amount is less than or equal to transport block size threshold value corresponding to the enhancing covering grade after climbing, continued to execute in MAC layer
EDT。
In one example, the memory 230 also stores the executable instruction of the processor 220, so that UE 200:
When enhancing covering grade is climbed, the maximum enhancing covering grade of enhancing covering grade and EDT after MAC layer will climb is carried out
Compare；When maximum of the enhancing covering grade higher than EDT after climbing enhances covering grade, second is sent to rrc layer in MAC layer
Indicate information, instruction EDT failure；Or maximum enhancing covering grade of enhancing covering grade after climbing less than or equal to EDT
When, EDT is continued to execute in MAC layer.
In one example, the memory 230 also stores the executable instruction of the processor 220, so that UE 200:
In rrc layer in response to receiving second indication information, it return back to non-EDT operation.
In one example, the memory 230 also stores the executable instruction of the processor 220, so that UE 200:
Third, which is sent, to MAC layer in rrc layer indicates that information, instruction MAC layer return back to non-EDT operation；And in MAC layer in response to receiving
Information is indicated to third, executes the random access procedure of non-EDT.
In one example, the maximum enhancing covering grade of the EDT is included in the first instruction information.
In one example, the memory 230 also stores the executable instruction of the processor 220, so that UE 200:
When enhancing covering grade is climbed, the 4th instruction information is sent to rrc layer in MAC layer, indicates the enhancing covering grade after climbing；
Rrc layer in response to receive the 4th instruction information, the data volume that will be transmitted with climb after enhancing covering grade corresponding to
Transport block size threshold value be compared；And when the data volume to be transmitted is greater than corresponding to enhancing covering grade after climbing
Transport block size threshold value when, rrc layer to MAC layer send third indicate information, instruction EDT failure；Or ought be transmitted
When data volume is less than or equal to transport block size threshold value corresponding to the enhancing covering grade after climbing, in rrc layer to MAC layer
The 5th instruction information is sent, instruction MAC layer continues to execute EDT.
In one example, the memory 230 also stores the executable instruction of the processor 220, so that UE 200:
In MAC layer in response to receiving third instruction information, the random access procedure of non-EDT is executed；Or in MAC layer in response to receiving
5th instruction information, continues to execute EDT.
Various aspects, especially example 1~3 described in method 100 are combined above, are also applied for UE200.
The program operated in the equipment according to the disclosure, which can be through control central processing unit (CPU), to be made to calculate
The program of machine realization embodiment of the disclosure function.The program or the information handled by the program can be temporarily stored in volatibility
Memory (such as random access memory ram), hard disk drive (HDD), nonvolatile memory (such as flash memory) or its
In his storage system.
Program for realizing each embodiment function of the disclosure can recorde on a computer readable recording medium.It can lead to
Crossing makes computer system read the program being recorded in the recording medium and executes these programs to realize corresponding function.This
So-called " computer system " at place can be built-in the computer system in the equipment, may include operating system or hardware
(such as peripheral equipment)." computer readable recording medium " can be semiconductor recording medium, optical record medium, magnetic recording and be situated between
Matter, the in short-term recording medium of dynamic memory program or any other computer-readable recording medium.
It can be by circuit (for example, monolithic or more with the various feature or function modules of equipment in the above-described embodiments
Piece integrated circuit) Lai Shixian or execution.The circuit for being designed to carry out this specification described function may include general place
Reason device, digital signal processor (DSP), specific integrated circuit (ASIC), field programmable gate array (FPGA) or other can compile
Any combination of journey logical device, discrete door or transistor logic, discrete hardware component or above-mentioned device.General procedure
Device can be microprocessor, be also possible to any existing processor, controller, microcontroller or state machine.Foregoing circuit can
To be digital circuit, it is also possible to analog circuit.There is the new of the existing integrated circuit of substitution because of the progress of semiconductor technology
Integrated circuit technique in the case where, these new integrated circuit techniques also can be used in one or more other embodiments of the present disclosure
To realize.
In addition, the disclosure is not limited to above-described embodiment.Although it have been described that the various examples of the embodiment, but
The disclosure is not limited thereto.The fixation or non-mobile electronic equipment for being mounted on indoor or outdoors may be used as terminal device or logical
Equipment is believed, such as AV equipment, cooking apparatus, cleaning equipment, air-conditioning, office equipment, automatic vending machine and other household electrical appliance
Deng.
As above, embodiment of the disclosure is described in detail by reference to attached drawing.But specific structure not office
It is limited to above-described embodiment, the disclosure also includes any design change without departing from disclosure purport.Furthermore it is possible in claim
In the range of the disclosure is variously changed, it is obtained by being appropriately combined technological means disclosed in different embodiments
Embodiment is also contained in scope of the presently disclosed technology.In addition, with the component of same effect described in above-described embodiment
It can be substituted for each other.
Claims (10)
1. a kind of method in user equipment (UE), comprising:
In radio resource control RRC layer, determination will initiate early time data transmission EDT；
The first instruction information is sent to media access control MAC layer in rrc layer, instruction MAC layer initiates the random access for being used for EDT
Process；And
In MAC layer in response to receiving the first instruction information, the random access procedure for being used for EDT is initiated.
2. according to the method described in claim 1, wherein, it is the reference for being at least partially based on measurement that the determination, which will initiate EDT,
Signal reception power RSRP is performed.
3. according to the method described in claim 1, further include:
When enhancing covering grade is climbed, corresponding to the enhancing covering grade in the data volume that MAC layer will be transmitted and after climbing
Transport block size threshold value be compared；And
When the data volume to be transmitted is greater than transport block size threshold value corresponding to the enhancing covering grade after climbing, in MAC
Layer sends second indication information, instruction EDT failure to rrc layer；Or
When the data volume to be transmitted is less than or equal to transport block size threshold value corresponding to the enhancing covering grade after climbing,
EDT is continued to execute in MAC layer.
4. according to the method described in claim 1, further include:
When enhancing covering grade is climbed, the maximum enhancing covering grade of enhancing covering grade and EDT after MAC layer will climb
It is compared；
When maximum of the enhancing covering grade higher than EDT after climbing enhances covering grade, second is sent to rrc layer in MAC layer
Indicate information, instruction EDT failure；Or
When maximum of the enhancing covering grade less than or equal to EDT after climbing enhances covering grade, continued to execute in MAC layer
EDT。
5. the method according to claim 3 or 4, further includes:
In rrc layer in response to receiving second indication information, it return back to non-EDT operation.
6. the method according to claim 3 or 4, further includes:
Third, which is sent, to MAC layer in rrc layer indicates that information, instruction MAC layer return back to non-EDT operation；And
In MAC layer in response to receiving third instruction information, the random access procedure of non-EDT is executed.
7. according to the method described in claim 4, wherein, the maximum enhancing covering grade of the EDT is included in the first instruction
In information.
8. method according to claim 1 or 2, further includes:
When enhancing covering grade is climbed, the 4th instruction information is sent to rrc layer in MAC layer, the enhancing after instruction is climbed covers
Grade；
Rrc layer in response to receive the 4th instruction information, the data volume that will be transmitted with climb after enhancing covering grade institute
Corresponding transport block size threshold value is compared；And
When the data volume to be transmitted is greater than transport block size threshold value corresponding to the enhancing covering grade after climbing, in RRC
Layer sends third to MAC layer and indicates information, instruction EDT failure；Or
When the data volume to be transmitted is less than or equal to transport block size threshold value corresponding to the enhancing covering grade after climbing,
The 5th instruction information is sent to MAC layer in rrc layer, instruction MAC layer continues to execute EDT.
9. according to the method described in claim 8, further include:
In MAC layer in response to receiving third instruction information, the random access procedure of non-EDT is executed；Or
In MAC layer in response to receiving the 5th instruction information, EDT is continued to execute.
10. a kind of user equipment (UE), including transceiver, processor and memory, the memory stores the processor and can hold
Capable instruction, so that the UE executes method according to claim 1 to 9.
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| CN201810013347.8A CN110012551A (en) | 2018-01-05 | 2018-01-05 | User equipment and correlation technique |
| PCT/CN2018/124897 WO2019134593A1 (en) | 2018-01-05 | 2018-12-28 | User equipment and related method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810013347.8A CN110012551A (en) | 2018-01-05 | 2018-01-05 | User equipment and correlation technique |
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