CN108347789A - A kind of accidental access method and device - Google Patents
A kind of accidental access method and device Download PDFInfo
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- CN108347789A CN108347789A CN201710060118.7A CN201710060118A CN108347789A CN 108347789 A CN108347789 A CN 108347789A CN 201710060118 A CN201710060118 A CN 201710060118A CN 108347789 A CN108347789 A CN 108347789A
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- 230000002159 abnormal effect Effects 0.000 description 4
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- 238000010295 mobile communication Methods 0.000 description 4
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Classifications
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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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
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Abstract
This application discloses a kind of accidental access method and device, the network equipment determines that terminal accesses the network equipment by Random Access, wherein the terminal is that the terminal of enhancement mode is converted to by normal mode；The network equipment sends enhancement mode information to the terminal, and the enhancement mode information is used to indicate the terminal in the random access procedure according to the network equipment described in the enhancement mode information access.
Description
Technical field
This application involves mobile communication technology field more particularly to a kind of accidental access methods and device.
Background technology
Currently, in order to improve the business experience of terminal, it is proposed that in wireless heterogeneous networks (Radio Resource
Control, RRC) during connected state, according to situation or the business feature etc. of eating dishes without rice or wine, dynamic configurating terminal is from normal mode
Be converted to enhancement mode.Such as when carrying out voice or video traffic, since covering is deteriorated, base station configurating terminal is by normal mode
(normal mode) is converted to Physical Uplink Shared Channel (Physical Uplink Shared Channel, PUSCH) enhancing
Pattern (enhancement mode), so that terminal obtains better covering in the enhanced mode.For another example, base station according to
The ability of terminal and done type of service, configurating terminal is by traditional (legacy) Transmission Time Interval (Transmission Time
Interval, TTI) pattern is converted to Transmission Time Interval (shortened TTI) pattern of shortening, to obtain shorter industry
Business time delay.Base station can be converted to another subcarrier spacings with configurating terminal by a subcarrier spacings for another example, to obtain
Obtain different rates and business experience.
After terminal enters enhancement mode, it may occur that some abnormal conditions, such as Radio Link Failure (Radio
Link Failure, RLF) or the abnormal conditions such as uplink loss.After the generation of these abnormal conditions, terminal can be initiated to connect at random
Enter (Random Access), to be connected by random access procedure to be established with base station.
After how terminal is there are when enhancement mode, to realize that terminal establishes connection by Random Access and base station, also
There is no total solution.
Invention content
The application provides a kind of accidental access method and device, to solve how in terminal there are when enhancement mode, make
It obtains terminal and the problem of connecting is established by Random Access and base station.
In a first aspect, the embodiment of the present application provides a kind of accidental access method, this method includes：
The network equipment determines that terminal accesses the network equipment by Random Access, wherein the terminal is by just
Norm formula is converted to the terminal of enhancement mode；
The network equipment sends enhancement mode information to the terminal, and the enhancement mode information is used to indicate the end
End is in the random access procedure according to the network equipment described in the enhancement mode information access.
According to method provided by the embodiments of the present application, the network equipment determines that terminal needs to access institute by Random Access
After stating the network equipment, enhancement mode message is sent to terminal, to indicate the terminal in the random access procedure according to institute
The network equipment described in enhancement mode information access is stated, is connected so that terminal can be established with enhancement mode and the network equipment,
Make terminal be always maintained at enhancement mode to real, improves the efficiency of system.
Optionally, the enhancement mode information includes following one or more：
The number of repetition of message 3；
The length of Transmission Time Interval TTI；
Subcarrier spacing；
Physical Random Access Channel PRACH numbers of repetition；
The time-frequency resource indication information of PRACH.
Optionally, the network equipment sends enhancement mode information to the terminal, including：
The network equipment sends the enhancement mode information by random access response RAR message to the terminal；Or
Person
The network equipment sends the enhancing by physical downlink control channel commands PDCCH order to the terminal
Pattern information.
Optionally, the enhancement mode information includes the number of repetition of message 3, and the number of repetition of the message 3 is located at institute
In the uplink grant for stating RAR message；Or
The enhancement mode information includes the length of TTI, and the length of the TTI is located at the uplink of the RAR message
In mandate；Or
The enhancement mode information includes subcarrier spacing, and the subcarrier spacing is located at the uplink of the RAR message
During road authorizes；Or
The enhancement mode information includes PRACH numbers of repetition and the time-frequency resource indication information of PRACH, described
PRACH numbers of repetition and the time-frequency resource indication information of the PRACH are located in the PDCCH order.
Optionally, before the network equipment determines that terminal accesses the network equipment by Random Access, further include：
The network equipment determines that uplink loss occurs for the terminal.
Optionally, the Random Access is non-competing random access.
Second aspect, the embodiment of the present application provide a kind of accidental access method, and this method includes：
Terminal receives the enhancement mode information that the network equipment is sent, and the enhancement mode information is used to indicate the terminal and exists
According to the network equipment described in the enhancement mode information access in random access procedure, wherein the terminal is by normal mode
Be converted to the terminal of enhancement mode；
The terminal accesses the network equipment according to enhancement mode information by Random Access.
According to method provided by the embodiments of the present application, after terminal receives the enhancement mode information that the network equipment is sent,
According to the network equipment described in the enhancement mode information access in random access procedure, so as to be set with enhancement mode and network
For connection is established, makes terminal be always maintained at enhancement mode to real, improve the efficiency of system.
Optionally, the enhancement mode information includes following one or more：
The number of repetition of message 3；
The length of Transmission Time Interval TTI；
Subcarrier spacing；
Physical Random Access Channel PRACH numbers of repetition；
The time-frequency resource indication information of PRACH.
Optionally, the terminal receives the enhancement mode information that the network equipment is sent, including：
The terminal receives the enhancement mode by the random access response RAR message that the network equipment is sent and believes
Breath；Or
The physical downlink control channel commands PDCCH that the network equipment described in the terminal is sent by the network equipment
Order receives the enhancement mode information.
Optionally, the enhancement mode information includes the number of repetition of message 3, and the number of repetition of the message 3 is located at institute
In the uplink grant for stating RAR message；Or
The enhancement mode information includes the length of TTI, and the length of the TTI is located at the uplink of the RAR message
In mandate；Or
The enhancement mode information includes subcarrier spacing, and the subcarrier spacing is located at the uplink of the RAR message
During road authorizes；Or
The enhancement mode information includes PRACH numbers of repetition and the time-frequency resource indication information of PRACH, described
PRACH numbers of repetition and the time-frequency resource indication information of the PRACH are located in the PDCCH order.
The third aspect, the embodiment of the present application provide a kind of accidental access method, and this method includes：
Terminal determines the Random Access access network device by competing, wherein the terminal is by normal mode
Be converted to the terminal of enhancement mode；
The terminal retracts normal mode, and accesses the network equipment by the Random Access of the competition.
According to method provided by the embodiments of the present application, terminal is random by what is competed determining when in enhancement mode
After access way access network device, normal mode is retracted, and the net is accessed by the Random Access of the competition
Network equipment, to avoid due to network equipment nonrecognition terminal, cause terminal with enhancement mode carry out caused by random access with
Machine access failure, to improve the success rate of terminal random access.
Optionally, the terminal retracts normal mode, including：
The terminal retracts normal mode before initiating random access；Or
The terminal retracts normal mode after receiving the random access response RAR message that the network equipment is sent.
Fourth aspect, the embodiment of the present application provide a kind of accidental access device, including：
Processing unit, for determining that terminal accesses the network equipment by Random Access, wherein the terminal is
The terminal of enhancement mode is converted to by normal mode；
Transmit-Receive Unit, for sending enhancement mode information to the terminal, the enhancement mode information is used to indicate described
Terminal is in the random access procedure according to the network equipment described in the enhancement mode information access.
Optionally, the enhancement mode information includes following one or more：
The number of repetition of message 3；
The length of Transmission Time Interval TTI；
Subcarrier spacing；
Physical Random Access Channel PRACH numbers of repetition；
The time-frequency resource indication information of PRACH.
Optionally, the Transmit-Receive Unit is specifically used for：
By random access response RAR message the enhancement mode information is sent to the terminal；Or
By physical downlink control channel commands PDCCH order the enhancement mode information is sent to the terminal.
Optionally, the enhancement mode information includes the number of repetition of message 3, and the number of repetition of the message 3 is located at institute
In the uplink grant for stating RAR message；Or
The enhancement mode information includes the length of TTI, and the length of the TTI is located at the uplink of the RAR message
In mandate；Or
The enhancement mode information includes subcarrier spacing, and the subcarrier spacing is located at the uplink of the RAR message
During road authorizes；Or
The enhancement mode information includes PRACH numbers of repetition and the time-frequency resource indication information of PRACH, described
PRACH numbers of repetition and the time-frequency resource indication information of the PRACH are located in the PDCCH order.
Optionally, the processing unit is additionally operable to：
Determine that uplink loss occurs for the terminal.
Optionally, the Random Access is non-competing random access.
5th aspect, the embodiment of the present application provide a kind of accidental access device, including：
Transmit-Receive Unit, the enhancement mode information for receiving network equipment transmission, the enhancement mode information are used to indicate
The terminal is in the random access procedure according to the network equipment described in the enhancement mode information access, wherein the terminal is
The terminal of enhancement mode is converted to by normal mode；
Processing unit, for accessing the network equipment by Random Access according to enhancement mode information.
Optionally, the enhancement mode information includes following one or more：
The number of repetition of message 3；
The length of Transmission Time Interval TTI；
Subcarrier spacing；
Physical Random Access Channel PRACH numbers of repetition；
The time-frequency resource indication information of PRACH.
Optionally, the Transmit-Receive Unit is specifically used for：
The enhancement mode information is received by the random access response RAR message that the network equipment is sent；Or
The network equipment is received by the physical downlink control channel commands PDCCH order that the network equipment is sent
The enhancement mode information.
Optionally, the enhancement mode information includes the number of repetition of message 3, and the number of repetition of the message 3 is located at institute
In the uplink grant for stating RAR message；Or
The enhancement mode information includes the length of TTI, and the length of the TTI is located at the uplink of the RAR message
In mandate；Or
The enhancement mode information includes subcarrier spacing, and the subcarrier spacing is located at the uplink of the RAR message
During road authorizes；Or
The enhancement mode information includes PRACH numbers of repetition and the time-frequency resource indication information of PRACH, described
PRACH numbers of repetition and the time-frequency resource indication information of the PRACH are located in the PDCCH order.
6th aspect, the embodiment of the present application provide a kind of accidental access device, including：
Processing unit, for determining the Random Access access network device by competing, wherein the terminal is served as reasons
Normal mode is converted to the terminal of enhancement mode；
Transmit-Receive Unit for retracting normal mode, and accesses the network by the Random Access of the competition and sets
It is standby.
Optionally, the Transmit-Receive Unit is specifically used for：
Normal mode is retracted before initiating random access；Or
After receiving the random access response RAR message that the network equipment is sent, normal mode is retracted.
7th aspect, the embodiment of the present application provide a kind of accidental access device, including：
Processor, for determining that terminal accesses the network equipment by Random Access, wherein the terminal is served as reasons
Normal mode is converted to the terminal of enhancement mode；
Transceiver, for sending enhancement mode information to the terminal, the enhancement mode information is used to indicate the end
End is in the random access procedure according to the network equipment described in the enhancement mode information access.
Optionally, the enhancement mode information includes following one or more：
The number of repetition of message 3；
The length of Transmission Time Interval TTI；
Subcarrier spacing；
Physical Random Access Channel PRACH numbers of repetition；
The time-frequency resource indication information of PRACH.
Optionally, the transceiver is specifically used for：
By random access response RAR message the enhancement mode information is sent to the terminal；Or
By physical downlink control channel commands PDCCH order the enhancement mode information is sent to the terminal.
Optionally, the enhancement mode information includes the number of repetition of message 3, and the number of repetition of the message 3 is located at institute
In the uplink grant for stating RAR message；Or
The enhancement mode information includes the length of TTI, and the length of the TTI is located at the uplink of the RAR message
In mandate；Or
The enhancement mode information includes subcarrier spacing, and the subcarrier spacing is located at the uplink of the RAR message
During road authorizes；Or
The enhancement mode information includes PRACH numbers of repetition and the time-frequency resource indication information of PRACH, described
PRACH numbers of repetition and the time-frequency resource indication information of the PRACH are located in the PDCCH order.
Optionally, the processor is additionally operable to：
Determine that uplink loss occurs for the terminal.
Optionally, the Random Access is non-competing random access.
Eighth aspect, the embodiment of the present application provide a kind of accidental access device, including：
Transceiver, the enhancement mode information for receiving network equipment transmission, the enhancement mode information are used to indicate institute
Terminal is stated in the random access procedure according to the network equipment described in the enhancement mode information access, wherein the terminal is served as reasons
Normal mode is converted to the terminal of enhancement mode；
Processor, for accessing the network equipment by Random Access according to enhancement mode information.
Optionally, the enhancement mode information includes following one or more：
The number of repetition of message 3；
The length of Transmission Time Interval TTI；
Subcarrier spacing；
Physical Random Access Channel PRACH numbers of repetition；
The time-frequency resource indication information of PRACH.
Optionally, the transceiver is specifically used for：
The enhancement mode information is received by the random access response RAR message that the network equipment is sent；Or
The network equipment is received by the physical downlink control channel commands PDCCH order that the network equipment is sent
The enhancement mode information.
Optionally, the enhancement mode information includes the number of repetition of message 3, and the number of repetition of the message 3 is located at institute
In the uplink grant for stating RAR message；Or
The enhancement mode information includes the length of TTI, and the length of the TTI is located at the uplink of the RAR message
In mandate；Or
The enhancement mode information includes subcarrier spacing, and the subcarrier spacing is located at the uplink of the RAR message
During road authorizes；Or
The enhancement mode information includes PRACH numbers of repetition and the time-frequency resource indication information of PRACH, described
PRACH numbers of repetition and the time-frequency resource indication information of the PRACH are located in the PDCCH order.
9th aspect, the embodiment of the present application provide a kind of accidental access device, including：
Processor, for determining the Random Access access network device by competing, wherein the terminal is by just
Norm formula is converted to the terminal of enhancement mode；
Transceiver accesses the network equipment for retracting normal mode, and by the Random Access of the competition.
Optionally, the transceiver is specifically used for：
Normal mode is retracted before initiating random access；Or
After receiving the random access response RAR message that the network equipment is sent, normal mode is retracted.
Tenth aspect, provides a kind of computer readable storage medium, is stored in the computer readable storage medium
Instruction, when run on a computer so that computer executes the method described in above-mentioned various aspects.
Tenth on the one hand, provide it is a kind of comprising instruction computer program product make when run on a computer
It obtains computer and executes the method described in above-mentioned various aspects.
Description of the drawings
Fig. 1 is a kind of random access procedure schematic diagram of competition in the prior art；
Fig. 2 is a kind of non-competing random access procedure schematic diagram in the prior art；
Fig. 3 is a kind of accidental access method flow diagram provided by the embodiments of the present application；
Fig. 4 is a kind of accidental access method flow diagram provided by the embodiments of the present application；
Fig. 5 is a kind of accidental access device structural schematic diagram provided by the embodiments of the present application；
Fig. 6 is a kind of network equipment infrastructure schematic diagram provided by the embodiments of the present application；
Fig. 7 is a kind of accidental access device structural schematic diagram provided by the embodiments of the present application；
Fig. 8 is a kind of terminal structure schematic diagram provided by the embodiments of the present application；
Fig. 9 is a kind of accidental access device structural schematic diagram provided by the embodiments of the present application；
Figure 10 is a kind of terminal structure schematic diagram provided by the embodiments of the present application.
Specific implementation mode
The application is described in further detail below in conjunction with attached drawing.
The embodiment of the present application can be applied to various mobile communication system, such as：New wireless (New Radio, NR) system,
Global system for mobile telecommunications (Global System of Mobile communication, GSM) system, CDMA (Code
Division Multiple Access, CDMA) system, wideband code division multiple access (Wideband Code Division
Multiple Access, WCDMA) system, General Packet Radio Service (General Packet Radio Service,
GPRS), long term evolution (Long Term Evolution, LTE) system, advanced long term evolution (Advanced long term
Evolution, LTE-A) system, Universal Mobile Communication System (Universal Mobile Telecommunication
System, UMTS), other shiftings such as long term evolution (evolved Long Term Evolution, eLTE) system, 5G of evolution
Dynamic communication system.
Hereinafter, the part term in the application is explained, in order to those skilled in the art understand that.
1), terminal, also referred to as user equipment (User Equipment, UE), be one kind provide a user voice and/or
The equipment of data connectivity, for example, portable equipment, mobile unit etc. with wireless connecting function.Common terminal is for example
Including：Mobile phone, tablet computer, laptop, palm PC, mobile internet device (mobile internet device,
MID), wearable device, such as smartwatch, Intelligent bracelet, pedometer etc..
2), the network equipment can be common base station (such as Node B or eNB), can be new wireless controller (New
Radio controller, NR controller), it can be the gNode B (gNB) in 5G systems, can be centralized network element
(Centralized Unit) can be new wireless base station, can be radio frequency remoto module, can be micro-base station, in being
After (relay), it can be distributed net element (Distributed Unit), can be receiving point (Transmission
Reception Point, TRP) or transfer point (Transmission Point, TP) or any other radio reception device,
But the embodiment of the present application is without being limited thereto.
3), message 3 (Msg3), three the random access procedure competition-based the step of in, terminal disappears to what base station was sent
Breath.Msg3 can be L2 message or L3 message, L2 message may be media access control (Media Access Control,
MAC cell) is controlled, L3 message can be RRC information (request or RRC connection re-establishments etc. are established in RRC connections), this is terminal
First upstream data sent on reverse link traffic channel.
Certainly, message 3 may also mean that in non-competing random access, first upper line number that terminal is sent to base station
According to.
4), enhancement mode, relative to normal mode, enhancement mode is the signal cover, propagation delay time, work(to terminal
The pattern that consumption, transmission rate etc. are enhanced meets the mesh such as business demand, raising business experience, raising power system capacity to reach
's.
The embodiment of the present application can be applied to the random access of competition, can also be applied to non-competing random access.Such as
Shown in Fig. 1, for a kind of random access procedure schematic diagram of competition in the prior art.
S101：Terminal to the network equipment send random access lead code (preamble), the preamble be physics with
It is sent on machine access channel (Physical Random Access Channel, PRACH) PRACH channels.The message also may be used
To be referred to as message 1 (Msg1).
S102：The network equipment is to terminal replies random access response (Random Access Response, RAR) message.
The message can also be referred to as message 2 (Msg2).
S103：Terminal sends Msg3 to the network equipment, and Msg3 can be L2 message or L3 message.
L2 message may be MAC control cells, and L3 message can establish request message or RRC connection re-establishments with RRC connections
The message such as message.
S104：The feedback contention-based solution message of the network equipment is to terminal, and the message can (such as RRC connections be established with RRC information
Deng), which can also be referred to as message 4 (Msg4).
Above-mentioned flow is the random access competed, and the network equipment can not identify terminal according to preamble in the flow.
As shown in Fig. 2, for a kind of non-competing random access procedure schematic diagram in the prior art.
S201：The network equipment is terminal distribution preamble.
S202：Terminal sends random access lead code to the network equipment, which sent on PRACH channels
's.
S203：The network equipment is to terminal replies RAR message.
S204：Terminal sends Msg3 to the network equipment, and Msg3 can be L2 message or L3 message.
In above-mentioned flow, for non-competing random access, the random access lead code that terminal is initiated is network equipment station
Distribution, the network equipment can recognize that this terminal after the preamble for receiving terminal transmission, and can use
The terminal is dispatched in the configuration of the saved terminal.
In conjunction with the description of front, referring to Fig. 3, for a kind of accidental access method flow signal provided by the embodiments of the present application
Figure.This method includes：
S301：The network equipment determines that terminal accesses the network equipment by Random Access, wherein the terminal is
The terminal of enhancement mode is converted to by normal mode.
S302：The network equipment sends enhancement mode information to the terminal, and the enhancement mode information is used to indicate
The terminal is in the random access procedure according to the network equipment described in the enhancement mode information access.
S303：Terminal receives the enhancement mode information that the network equipment is sent.
S304：The terminal accesses the network equipment according to enhancement mode information by Random Access.
Before S301, terminal is converted to enhancement mode by normal mode.For example, terminal is carrying out voice or video traffic
When, since covering is deteriorated, network equipments configuration terminal is converted to enhancement mode by normal mode, so that terminal is in enhancing mould
Preferably covering is obtained under formula.For another example, ability and done type of service of the network equipment according to terminal, configurating terminal is by tradition
TTI patterns are converted to shortened TTI patterns, to obtain shorter service delay.The network equipment can also match for another example
It sets terminal and is converted to another subcarrier spacings by a subcarrier spacings, to obtain different rates and business experience.
Certainly above only example, terminal can also be converted to enhancement mode by normal mode in other cases, herein
No longer illustrate one by one.
In S301, after the network equipment determines that uplink loss occurs for the terminal, it may be determined that terminal needs pass through
Random Access accesses the network equipment again.At this point, the network equipment can pass through Physical Downlink Control Channel
(Physical Downlink Control Channel, PDCCH) order (order) instruction terminal is initiated non-competing random
Access, so that terminal re-starts uplink synchronous.
Since network equipment instruction terminal initiates non-competing random access, for non-competing random access, the net
Network equipment can identify terminal, therefore terminal can be continuing with enhancement mode in the random access procedure.
In order to enable terminal is in the enhanced mode by non-competing Random Access access network device, in S302
In, the network equipment needs to send enhancement mode information to terminal.
In the embodiment of the present application, the enhancement mode information may include following one or more：
The number of repetition of message 3 is used to indicate terminal and repeats to send the maximum times of message 3 in the random access procedure；
The length of TTI is used to indicate the length that terminal sends the TTI used when message 3 in the random access procedure；
Subcarrier spacing is used to indicate terminal and sends the subcarrier spacing used when message 3 in the random access procedure；
PRACH numbers of repetition；
The time-frequency resource indication information of the time-frequency resource indication information of PRACH, PRACH indicates the time-frequency shared by PRACH
Resource.
The network equipment can send enhancement mode information to terminal in several ways.
In the first possible realization method, the network equipment can be sent by PDCCH order to the terminal
The enhancement mode information.
For example, the enhancement mode information includes PRACH numbers of repetition and the time-frequency resource indication letter of PRACH
Breath, the network equipment can send PRACH numbers of repetition by PDCCH order and the time-frequency resource indication of PRACH is believed
Breath.Specifically, the network equipment can be by passing through Cell Radio Network Temporary Identifier/Identity, Cell-RNTI (Cell Radio in PDCCH
Network Temporary Identifier, C-RNTI) scrambled Downlink Control Information (Downlink Control
Information, DCI) increase m bit in format (format) 1A, it is used for transmission PRACH numbers of repetition；Meanwhile it is described
The network equipment can increase n bit by passing through in PDCCH in the scrambled DCI format 1A of C-RNTI, be used for transmission
The time-frequency resource indication information of PRACH, m and n are the positive integer more than 0.
In second of possible realization method, the network equipment can be by RAR message to described in terminal transmission
Enhancement mode information.
Specifically, the network equipment can authorize (grant) by the uplink (uplink, UL) in RAR message
The enhancement mode information is sent to the terminal.
The format of existing UL grant can be as shown in table 1：
Table 1
For example, the enhancement mode information includes the number of repetition of message 3, and the network equipment can will be described
" to the transmission power control command of Physical Uplink Shared Channel " field in the UL grant of RAR message redefines, weight
" to the transmission power control command of Physical Uplink Shared Channel " field after definition is changed to " number of repetition of message 3 " word
Section, is used to indicate the number of repetition of message 3.At this point, the format of UL grant can be as shown in table 2：
Table 2
In conjunction with above description, when using the voice technology of coverage enhancement, if terminal is abnormal and uplink occurs
After step-out, the network equipment can through the above way notify the number of repetition of message 3 to terminal, to allow terminal can be
When sending message 3, the transmission of message 3 is carried out using the number of repetition.
In the embodiment of the present application, the format of existing UL grant can also be modified, in existing UL grant
Format in increase the repetition time field of a message 3, to by the repetition time field of message 3 to terminal instruction message
3 number of repetition.For example, the format of existing UL grant can also be as shown in table 3：
Table 3
In order to transmit enhancement mode information, the format of UL grant in conjunction with described in table 1 can be by message 3 on PUSCH
Narrowband index value, the resource allocation of the upper message of PUSCH 3, transmitting power control, message 3 or message 4 machine type communication physics
Down control channel narrowband index value mends the fields deletion such as 0, and increases fixed size resource block assignments field and message 3
Repetition time field, obtain the format of UL grant as shown in table 4：
Table 4
Again for example, the enhancement mode information includes the length or subcarrier spacing of the TTI of message 3, the network
K bit in " assignment of fixed size resource block " in UL grant is used to indicate the length or subcarrier of TTI by equipment
Interval, k are the integer more than 0 and less than 10.At this point, the format of UL grant can be as shown in table 5：
Table 5
In conjunction with above description, in the scene of shortened TTI patterns, it may be used above method transmission TTI's
Length；In the pattern scene of subcarrier spacing change, above method transmission subcarrier spacing may be used.
Certainly, the above only example, can also use other modes to send enhancement mode information, details are not described herein.
In S303, terminal receives the enhancement mode that the network equipment is sent by PDCCH order or RAR message and believes
Breath.
The particular content for the enhancement mode information that terminal receives can refer to the description in S301 to S302, herein no longer
It repeats.Correspondingly, position of the enhancement mode information in PDCCH order or RAR message can also refer to S301 to S302
In description, details are not described herein.
Finally in S304, terminal in the random access procedure, according to the enhancement mode information access network equipment.For example,
Enhancement mode information includes the number of repetition of message 3, the length of TTI and subcarrier spacing, and terminal is in random access procedure
The middle maximum times for repeating transmission message 3 are the number of repetition for the message 3 that enhancement mode information includes, and terminal is connecing at random
The length of the TTI used when sending message 3 during entering is the length for the TTI that enhancement mode information includes, terminal with
The subcarrier spacing used when sending message 3 in machine access procedure is the subcarrier spacing that enhancement mode information includes.
In conjunction with the description of front, referring to Fig. 4, for a kind of accidental access method flow signal provided by the embodiments of the present application
Figure.This method includes：
S401：Terminal determines the Random Access access network device by competing, wherein the terminal is by normal
Pattern is converted to the terminal of enhancement mode；
S402：The terminal retracts normal mode, and accesses the network by the Random Access of the competition and set
It is standby.
Before S401, terminal can then initiate the random access of competition in case of RLF；Alternatively, terminal is in case of upper
Row step-out, it is same that the network equipment by the random access of competition may re-start uplink by PDCCH order instruction terminals
Step.Random access competition-based, the network equipment can not identify the mark of terminal in the random access procedure stage.
In S401, terminal is if it is determined that have occurred RLF, it is determined that the Random Access by competing is needed to access network
Equipment；Alternatively, if terminal receives the instruction that the network equipment is sent by PDCCH order, instruction terminal passes through competition
Random access re-starts uplink synchronous, needs the Random Access by competing to access net then terminal can also determine
Network equipment
In S402, the terminal can retract normal mode before initiating random access；Or the terminal is receiving
After the RAR message that the network equipment is sent, normal mode is retracted.
It should be noted that in the embodiment of the present application, the network equipment all uses non-reinforcing pattern to competition random access.
Based on the same technical idea, the embodiment of the present application also provides a kind of accidental access device, on the device is executable
State embodiment of the method.
As shown in figure 5, providing a kind of accidental access device structural schematic diagram for the embodiment of the present application.
Referring to Fig. 5, which includes：
Processing unit 501, for determining that terminal accesses the network equipment by Random Access, wherein the end
End is the terminal that enhancement mode is converted to by normal mode；
Transmit-Receive Unit 502, for sending enhancement mode information to the terminal, the enhancement mode information is used to indicate institute
Terminal is stated in the random access procedure according to the network equipment described in the enhancement mode information access.
Optionally, the enhancement mode information includes following one or more：
The number of repetition of message 3；
The length of Transmission Time Interval TTI；
Subcarrier spacing；
Physical Random Access Channel PRACH numbers of repetition；
The time-frequency resource indication information of PRACH.
Optionally, the Transmit-Receive Unit 502 is specifically used for：
By random access response RAR message the enhancement mode information is sent to the terminal；Or
By physical downlink control channel commands PDCCH order the enhancement mode information is sent to the terminal.
Optionally, the enhancement mode information includes the number of repetition of message 3, and the number of repetition of the message 3 is located at institute
In the uplink grant for stating RAR message；Or
The enhancement mode information includes the length of TTI, and the length of the TTI is located at the uplink of the RAR message
In mandate；Or
The enhancement mode information includes subcarrier spacing, and the subcarrier spacing is located at the uplink of the RAR message
During road authorizes；Or
The enhancement mode information includes PRACH numbers of repetition and the time-frequency resource indication information of PRACH, described
PRACH numbers of repetition and the time-frequency resource indication information of the PRACH are located in the PDCCH order.
Optionally, the processing unit 501 is additionally operable to：
Determine that uplink loss occurs for the terminal.
Optionally, the Random Access is non-competing random access.
It should be understood that the division of above each unit is only a kind of division of logic function, it in actual implementation can be whole
Or be partially integrated on a physical entity, it can also be physically separate.In the embodiment of the present application, Transmit-Receive Unit 502 can be by
Transceiver realizes that processing unit 501 can be realized by processor.As shown in fig. 6, the network equipment 600 may include processor
601, transceiver 602 and memory 603.Wherein, the journey that memory 603 can be used for pre-installing when storage networking device 600 dispatches from the factory
Sequence/code can also store the code etc. when being executed for processor 601.
Based on the same technical idea, the embodiment of the present application also provides a kind of accidental access device, on the device is executable
State embodiment of the method.
As shown in fig. 7, providing a kind of accidental access device structural schematic diagram for the embodiment of the present application.
Referring to Fig. 7, which includes：
Transmit-Receive Unit 701, the enhancement mode information for receiving network equipment transmission, the enhancement mode information is for referring to
Show the terminal in the random access procedure according to the network equipment described in the enhancement mode information access, wherein the terminal
To be converted to the terminal of enhancement mode by normal mode；
Processing unit 702, for accessing the network equipment by Random Access according to enhancement mode information.
Optionally, the enhancement mode information includes following one or more：
The number of repetition of message 3；
The length of Transmission Time Interval TTI；
Subcarrier spacing；
Physical Random Access Channel PRACH numbers of repetition；
The time-frequency resource indication information of PRACH.
Optionally, the Transmit-Receive Unit 701 is specifically used for：
The enhancement mode information is received by the random access response RAR message that the network equipment is sent；Or
The network equipment is received by the physical downlink control channel commands PDCCH order that the network equipment is sent
The enhancement mode information.
Optionally, the enhancement mode information includes the number of repetition of message 3, and the number of repetition of the message 3 is located at institute
In the uplink grant for stating RAR message；Or
The enhancement mode information includes the length of TTI, and the length of the TTI is located at the uplink of the RAR message
In mandate；Or
The enhancement mode information includes subcarrier spacing, and the subcarrier spacing is located at the uplink of the RAR message
During road authorizes；Or
The enhancement mode information includes PRACH numbers of repetition and the time-frequency resource indication information of PRACH, described
PRACH numbers of repetition and the time-frequency resource indication information of the PRACH are located in the PDCCH order.
It should be understood that the division of above each unit is only a kind of division of logic function, it in actual implementation can be whole
Or be partially integrated on a physical entity, it can also be physically separate.In the embodiment of the present application, Transmit-Receive Unit 701 can be by
Transceiver realizes that processing unit 702 can be realized by processor.As shown in figure 8, terminal 800 may include processor 801, receive
Send out device 802 and memory 803.Wherein, memory 803 can be used for storing the program/code pre-installed when terminal 800 is dispatched from the factory,
The code etc. when being executed for processor 801 can be stored.
Based on the same technical idea, the embodiment of the present application also provides a kind of accidental access device, on the device is executable
State embodiment of the method.
As shown in figure 9, providing a kind of accidental access device structural schematic diagram for the embodiment of the present application.
Referring to Fig. 9, which includes：
Processing unit 901, for determining the Random Access access network device by competing, wherein the terminal
To be converted to the terminal of enhancement mode by normal mode；
Transmit-Receive Unit 902 accesses the network for retracting normal mode, and by the Random Access of the competition
Equipment.
Optionally, the Transmit-Receive Unit 902 is specifically used for：
Normal mode is retracted before initiating random access；Or
After receiving the random access response RAR message that the network equipment is sent, normal mode is retracted.
It should be understood that the division of above each unit is only a kind of division of logic function, it in actual implementation can be whole
Or be partially integrated on a physical entity, it can also be physically separate.In the embodiment of the present application, Transmit-Receive Unit 902 can be by
Transceiver realizes that processing unit 901 can be realized by processor.As shown in Figure 10, terminal 1000 may include processor 1001,
Transceiver 1002 and memory 1003.Wherein, memory 1003 can be used for storing the program/generation pre-installed when terminal 1000 is dispatched from the factory
Code, can also store the code etc. when being executed for processor 1001.
In the embodiment of the present application, transceiver can be wireline transceiver, wireless transceiver or combinations thereof.Wireline transceiver example
It such as can be Ethernet interface.Ethernet interface can be optical interface, electrical interface or combinations thereof.Wireless transceiver for example can be
Wireless lan transceiver, cellular network transceiver or combinations thereof.Processor can be central processing unit (English：central
Processing unit, abbreviation：CPU), network processing unit (English：Network processor, abbreviation：NP) or CPU and
The combination of NP.Processor can further include hardware chip.Above-mentioned hardware chip can be application-specific integrated circuit (English：
Application-specific integrated circuit, abbreviation：ASIC), programmable logic device (English：
Programmable logic device, abbreviation：PLD) or combinations thereof.Above-mentioned PLD can be Complex Programmable Logic Devices
(English：Complex programmable logic device, abbreviation：CPLD), field programmable gate array (English：
Field-programmable gate array, abbreviation：FPGA), Universal Array Logic (English：generic array
Logic, abbreviation：GAL) or it is arbitrarily combined.Memory may include volatile memory (English：Volatile memory),
Such as random access memory (English：Random-access memory, abbreviation：RAM)；Memory can also include non-volatile
Property memory (English：Non-volatile memory), such as read-only memory (English：Read-only memory, abbreviation：
ROM), flash memory (English：Flash memory), hard disk (English：Hard disk drive, abbreviation：) or solid-state HDD
Hard disk (English：Solid-state drive, abbreviation：SSD)；Memory can also include the combination of the memory of mentioned kind.
Wherein, can also include bus interface in Fig. 6, Fig. 8 and Figure 10, bus interface may include any number of interconnection
Bus and bridge, specifically by processor represent one or more processors and memory represent memory various electrical chains
It is connected together.Bus interface can also be by various other electricity of such as peripheral equipment, voltage-stablizer and management circuit or the like
Road links together, and these are all it is known in the art, and therefore, it will not be further described herein.Bus interface
Interface is provided.
The embodiment of the present application also provides a kind of computer readable storage mediums, and above-mentioned processor institute is executed for being stored as
The computer software instructions that need to be executed, it includes for executing the program executed needed for above-mentioned processor.
It should be understood by those skilled in the art that, embodiments herein can be provided as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the application
Apply the form of example.Moreover, the application can be used in one or more wherein include computer usable program code computer
The shape for the computer program product implemented in usable storage medium (including but not limited to magnetic disk storage, optical memory etc.)
Formula.
The application be with reference to according to the present processes, equipment (system) and computer program product flow chart and/or
Block diagram describes.It should be understood that each flow that can be realized by computer program instructions in flowchart and/or the block diagram and/or
The combination of flow and/or box in box and flowchart and/or the block diagram.These computer program instructions can be provided to arrive
All-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices processor to generate one
Machine so that the instruction executed by computer or the processor of other programmable data processing devices generates flowing
The device for the function of being specified in one flow of journey figure or multiple flows and/or one box of block diagram or multiple boxes.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that instruction generation stored in the computer readable memory includes referring to
Enable the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one box of block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device so that count
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, in computer or
The instruction executed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Obviously, those skilled in the art can carry out the application essence of the various modification and variations without departing from the application
God and range.In this way, if these modifications and variations of the application belong to the range of the application claim and its equivalent technologies
Within, then the application is also intended to include these modifications and variations.
Claims (24)
1. a kind of accidental access method, which is characterized in that the method includes：
The network equipment determines that terminal accesses the network equipment by Random Access, wherein the terminal is by normal mode
Formula is converted to the terminal of enhancement mode；
The network equipment sends enhancement mode information to the terminal, and the enhancement mode information is used to indicate the terminal and exists
According to the network equipment described in the enhancement mode information access in random access procedure.
2. according to the method described in claim 1, it is characterized in that, the enhancement mode information includes following one or more：
The number of repetition of message 3；
The length of Transmission Time Interval TTI；
Subcarrier spacing；
Physical Random Access Channel PRACH numbers of repetition；
The time-frequency resource indication information of PRACH.
3. method according to claim 1 or 2, which is characterized in that the network equipment sends enhancing mould to the terminal
Formula information, including：
The network equipment sends the enhancement mode information by random access response RAR message to the terminal；Or
The network equipment sends the enhancement mode by physical downlink control channel commands PDCCH order to the terminal
Information.
4. according to the method described in claim 3, it is characterized in that, the enhancement mode information includes the number of repetition of message 3,
The number of repetition of the message 3 is located in the uplink grant of the RAR message；Or
The enhancement mode information includes the length of TTI, and the length of the TTI is located at the uplink grant of the RAR message
In；Or
The enhancement mode information includes subcarrier spacing, and the uplink that the subcarrier spacing is located at the RAR message is awarded
Quan Zhong；Or
The enhancement mode information includes PRACH numbers of repetition and the time-frequency resource indication information of PRACH, the PRACH weights
Again the time-frequency resource indication information of number and the PRACH are located in the PDCCH order.
5. method according to any one of claims 1 to 4, which is characterized in that the network equipment determines that terminal passes through random access
Mode accesses before the network equipment, further includes：
The network equipment determines that uplink loss occurs for the terminal.
6. method according to any one of claims 1 to 5, which is characterized in that the Random Access be it is non-competing with
Machine accesses.
7. a kind of accidental access method, which is characterized in that the method includes：
Terminal receives the enhancement mode information that the network equipment is sent, and the enhancement mode information is used to indicate the terminal random
According to the network equipment described in the enhancement mode information access in access procedure, wherein the terminal is to be converted by normal mode
For the terminal of enhancement mode；
The terminal accesses the network equipment according to enhancement mode information by Random Access.
8. the method according to the description of claim 7 is characterized in that the enhancement mode information includes following one or more：
The number of repetition of message 3；
The length of Transmission Time Interval TTI；
Subcarrier spacing；
Physical Random Access Channel PRACH numbers of repetition；
The time-frequency resource indication information of PRACH.
9. method according to claim 7 or 8, which is characterized in that the terminal receives the enhancing mould that the network equipment is sent
Formula information, including：
The terminal receives the enhancement mode information by the random access response RAR message that the network equipment is sent；Or
Person
The physical downlink control channel commands PDCCH order that the network equipment described in the terminal is sent by the network equipment
Receive the enhancement mode information.
10. according to the method described in claim 9, it is characterized in that, the enhancement mode information includes the repetition time of message 3
Number, the number of repetition of the message 3 are located in the uplink grant of the RAR message；Or
The enhancement mode information includes the length of TTI, and the length of the TTI is located at the uplink grant of the RAR message
In；Or
The enhancement mode information includes subcarrier spacing, and the uplink that the subcarrier spacing is located at the RAR message is awarded
Quan Zhong；Or
The enhancement mode information includes PRACH numbers of repetition and the time-frequency resource indication information of PRACH, the PRACH weights
Again the time-frequency resource indication information of number and the PRACH are located in the PDCCH order.
11. a kind of accidental access method, which is characterized in that the method includes：
Terminal determines the Random Access access network device by competing, wherein the terminal is to be converted by normal mode
For the terminal of enhancement mode；
The terminal retracts normal mode, and accesses the network equipment by the Random Access of the competition.
12. according to the method for claim 11, which is characterized in that the terminal retracts normal mode, including：
The terminal retracts normal mode before initiating random access；Or
The terminal retracts normal mode after receiving the random access response RAR message that the network equipment is sent.
13. a kind of accidental access device, which is characterized in that described device includes：
Processing unit, for determining that terminal accesses the network equipment by Random Access, wherein the terminal is by just
Norm formula is converted to the terminal of enhancement mode；
Transmit-Receive Unit, for sending enhancement mode information to the terminal, the enhancement mode information is used to indicate the terminal
In the random access procedure according to the network equipment described in the enhancement mode information access.
14. device according to claim 13, which is characterized in that the enhancement mode information includes following one or more
：
The number of repetition of message 3；
The length of Transmission Time Interval TTI；
Subcarrier spacing；
Physical Random Access Channel PRACH numbers of repetition；
The time-frequency resource indication information of PRACH.
15. the device according to claim 13 or 14, which is characterized in that the Transmit-Receive Unit is specifically used for：
By random access response RAR message the enhancement mode information is sent to the terminal；Or
By physical downlink control channel commands PDCCH order the enhancement mode information is sent to the terminal.
16. device according to claim 15, which is characterized in that the enhancement mode information includes the repetition time of message 3
Number, the number of repetition of the message 3 are located in the uplink grant of the RAR message；Or
The enhancement mode information includes the length of TTI, and the length of the TTI is located at the uplink grant of the RAR message
In；Or
The enhancement mode information includes subcarrier spacing, and the uplink that the subcarrier spacing is located at the RAR message is awarded
Quan Zhong；Or
The enhancement mode information includes PRACH numbers of repetition and the time-frequency resource indication information of PRACH, the PRACH weights
Again the time-frequency resource indication information of number and the PRACH are located in the PDCCH order.
17. according to any device of claim 13 to 15, which is characterized in that the processing unit is additionally operable to：
Determine that uplink loss occurs for the terminal.
18. according to any device of claim 13 to 17, which is characterized in that the Random Access is non-competing
Random access.
19. a kind of accidental access device, which is characterized in that described device includes：
Transmit-Receive Unit, the enhancement mode information for receiving network equipment transmission, the enhancement mode information are used to indicate described
Terminal is in the random access procedure according to the network equipment described in the enhancement mode information access, wherein the terminal is by just
Norm formula is converted to the terminal of enhancement mode；
Processing unit, for accessing the network equipment by Random Access according to enhancement mode information.
20. device according to claim 19, which is characterized in that the enhancement mode information includes following one or more
：
The number of repetition of message 3；
The length of Transmission Time Interval TTI；
Subcarrier spacing；
Physical Random Access Channel PRACH numbers of repetition；
The time-frequency resource indication information of PRACH.
21. the device according to claim 19 or 20, which is characterized in that the Transmit-Receive Unit is specifically used for：
The enhancement mode information is received by the random access response RAR message that the network equipment is sent；Or
Described in the physical downlink control channel commands PDCCH order that the network equipment is sent by the network equipment are received
Enhancement mode information.
22. device according to claim 21, which is characterized in that the enhancement mode information includes the repetition time of message 3
Number, the number of repetition of the message 3 are located in the uplink grant of the RAR message；Or
The enhancement mode information includes the length of TTI, and the length of the TTI is located at the uplink grant of the RAR message
In；Or
The enhancement mode information includes subcarrier spacing, and the uplink that the subcarrier spacing is located at the RAR message is awarded
Quan Zhong；Or
The enhancement mode information includes PRACH numbers of repetition and the time-frequency resource indication information of PRACH, the PRACH weights
Again the time-frequency resource indication information of number and the PRACH are located in the PDCCH order.
23. a kind of accidental access device, which is characterized in that described device includes：
Processing unit, for determining the Random Access access network device by competing, wherein the terminal is by normal
Pattern is converted to the terminal of enhancement mode；
Transmit-Receive Unit accesses the network equipment for retracting normal mode, and by the Random Access of the competition.
24. device according to claim 23, which is characterized in that the Transmit-Receive Unit is specifically used for：
Normal mode is retracted before initiating random access；Or
After receiving the random access response RAR message that the network equipment is sent, normal mode is retracted.
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