CN109842954A - A kind of accidental access method and device - Google Patents
A kind of accidental access method and device Download PDFInfo
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- CN109842954A CN109842954A CN201711192217.7A CN201711192217A CN109842954A CN 109842954 A CN109842954 A CN 109842954A CN 201711192217 A CN201711192217 A CN 201711192217A CN 109842954 A CN109842954 A CN 109842954A
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Abstract
A kind of accidental access method and device, to solve the problems, such as that accidental access method leads to that signaling overheads is larger, time delay is higher in the prior art.In the method, base station has been pre-configured with the ascending resource that terminal device sends random access information, terminal device is set to without waiting for retransmiting random access information after base station returns to random access response, and then the leader sequence and random access information for sending base station according to terminal device, the random access response comprising contention resolution message is returned to terminal device, to notify the success of terminal device random access, the waiting time of random access information must could be sent until receiving random access response by saving terminal device relative to existing accidental access method, and feedback contention-based solution message and random access response are also fed back to terminal device by base station together, also turn-on time is further saved, to which process is reduced for existing random access procedure, signaling overheads can be reduced, reduce time delay.
Description
Technical field
This application involves field of communication technology more particularly to a kind of accidental access methods and device.
Background technique
In long term evolution (long term evolution, LTE) system, random access procedure is terminal device to base station
The process of access is requested, terminal device establishes connection by random access and cell and obtains uplink synchronous.Wherein, the LTE
Random access in system is divided into random access competition-based and based on non-competing two kind of random access, but uses and be based on
The scene of the random access of competition is commonplace.
Currently, the basic procedure of random access competition-based is divided into following steps, completed at random by following step
Access:
1, terminal device obtains the random access configuration information of base station broadcast, includes more in the random access configuration information
A leader sequence (preamble) and the corresponding index value of the multiple leader sequence for random access, and send
The running time-frequency resource position of corresponding leader sequence, the terminal device randomly choosed in the multiple leader sequence one it is leading
Sequence sends the leader sequence of selection by corresponding running time-frequency resource position to the base station, with notify the base station have with
Machine access request；
2, after the base station detects the leader sequence, Xiang Suoshu terminal device return random access response, it is described with
Mark comprising the leader sequence and the ascending resource for terminal device transmission random access information distribution in machine access response；
3, after the terminal device receives the random access response, confirm the mark and itself hair of the leader sequence
When the index value of the leader sequence sent is identical, the base station Xiang Suoshu sends the random access of the mark comprising the terminal device
Information；
4, after the base station receives the random access information, determine that the terminal device is competing based on contention resolution strategy
Success is striven, Xiang Suoshu terminal device returns to the contention resolution message of the mark comprising the terminal device, to notify the terminal
The success of equipment random access.
But when completing random access by above-mentioned accidental access method, terminal device can only receive the random of base station
It just can be carried out follow-up process after access response, it is clear that process CIMS is more, will cause that signaling overheads is larger, and time delay is higher in this way.
Summary of the invention
The application provides a kind of accidental access method and device, leads to letter to solve accidental access method in the prior art
Enable that expense is larger, the higher problem of time delay.
In a first aspect, this application provides a kind of accidental access methods, this method comprises:
Base station configuration is comprising sending the running time-frequency resource position of leader sequence and the ascending resource for sending random access information
Random access configuration information, and to random access configuration information described in end-point device broadcast；The terminal device is according to acquisition base
Stand broadcast random access configuration information, determine in the random access configuration information comprising send leader sequence running time-frequency resource
When the ascending resource of position and transmission random access information, leader sequence is sent to base station based on the running time-frequency resource position, and
Before receiving the random access response that the base station returns, sent to the base station comprising described based on the ascending resource
The random access information of the mark of terminal device；Then when the base station determines the leader sequence and the random access information
When receiving successfully, the base station sends the first random access comprising the first contention resolution message to the terminal device and rings
It answers, the Terminal Equipment Identifier that first contention resolution message includes is the mark of the terminal device.
By the above method, base station has been pre-configured with the ascending resource that terminal device sends random access information, so that eventually
End equipment can without waiting for retransmiting random access information after base station returns to random access response, and then allow base station root
According to leader sequence and random access information that terminal device is sent, connecing at random comprising contention resolution message is returned to terminal device
Enter response, to notify the success of terminal device random access, in this way, saving terminal relative to existing accidental access method and setting
It is standby could to send the waiting time of random access information until receiving random access response, and base station can also will be anti-
Feedback contention resolution message and random access response feed back to terminal device together, may further also save turn-on time, thus
Process is reduced for random access procedure compared with the existing technology, it is possible to reduce signaling overheads reduces time delay.
In a possible design, when the base station determines the leader sequence reception failure, and the random access
When information is received successfully, the base station can return to the response message comprising random back value to the terminal device, wherein institute
It states random back value and is used to indicate the time interval that the terminal device retransmits the leader sequence；Then, the terminal device
It can be according to the random back value, after the upper time point for once sending the leader sequence after the time interval
Again the leader sequence is sent to the base station, and when the leader sequence retransmits successfully, receives what the base station returned
The second random access response comprising the second contention resolution message, the Terminal Equipment Identifier that second contention resolution message includes
For the mark of the terminal device.
By the above method, terminal device can without waiting for retransmiting and connecing at random after base station returns to random access response
Enter information, in this way, can save terminal device must ring until receiving random access relative to existing accidental access method
When should could send the waiting time of random access information, and the waiting for waiting leader sequence to retransmit may further be saved
Between, so as to reduce signaling overheads, time delay can be reduced.
In a possible design, the terminal device can send the leader sequence to the base station, and synchronous
Send the random access information to the base station, i.e., the described terminal device to leader sequence described in the base station simultaneous transmission and
The random access information；The terminal device first can also send the leader sequence to the base station, then receive
Any time before the random access response that the base station returns sends the random access information to the base station.
By the above method, it terminal device can be saved must could send until receiving random access response and connect at random
Enter the waiting time of information, so as to reduce signaling overheads, time delay can be reduced.
In a possible design, the terminal device can pass through Physical Random Access Channel (physical
Random access channel, PRACH) to the base station transmission leader sequence, Physical Uplink Shared Channel can also be passed through
The base station Xiang Suoshu (physical uplink shared channel, PUSCH) sends the random access information.It in this way can be with
Caused by when the leader sequence and the random access information being avoided to transmit in the same channel due to preempting resources caused by
Collision, while available channel resource can be made full use of, and then the success rate of transmission can be improved, it is random so as to improve
It is successfully accessed rate.
Second aspect, present invention also provides a kind of terminal device, which, which has, is realized in above method example
The function of terminal device behavior.The function can also execute corresponding software realization by hardware realization by hardware.
The hardware or software include one or more modules corresponding with above-mentioned function.
It include transceiver and processor, the transceiver in the structure of the terminal device in a possible design
For sending and receiving data；The processor is configured to the base station is supported to execute corresponding function in the above method.
It is described including transceiver, memory and processor in the structure of the terminal device in a kind of possible design
Transceiver is for sending and receiving data；The processor is configured to it is corresponding in the above method to support that the terminal device executes
Function.The memory is coupled with the processor, saves the necessary program instruction of the terminal device and data.
The third aspect, present invention also provides a kind of base station, which, which has, realizes base station behavior in above method example
Function.The function can also execute corresponding software realization by hardware realization by hardware.The hardware is soft
Part includes one or more modules corresponding with above-mentioned function.
It include transceiver and processor in the structure of the base station in a possible design, the transceiver is used for
Send and receive data；The processor is configured to the base station is supported to execute corresponding function in the above method.
It include transceiver, memory and processor, the transmitting-receiving in the structure of the base station in a kind of possible design
Device is for sending and receiving data；The processor is configured to the base station is supported to execute corresponding function in the above method.
The memory is coupled with the processor, saves the necessary program instruction in the base station and data.
Fourth aspect, present invention also provides a kind of communication system, the communication system includes referring in above-mentioned design
The terminal device referred at least one base station and multiple above-mentioned designs.
5th aspect, present invention also provides a kind of computer storage medium, is stored in the computer storage medium
Computer executable instructions, the computer executable instructions by the computer when being called for executing the computer
Any of the above-described kind of method.
6th aspect, present invention also provides a kind of computer program products comprising instruction, when it is transported on computers
When row, so that computer executes any of the above-described kind of method.
7th aspect, present invention also provides a kind of chip, the chip is connected with memory, for reading and executing institute
The program instruction stored in memory is stated, to realize any of the above-described kind of method.
Detailed description of the invention
Fig. 1 is a kind of architecture diagram of communication system provided by the present application；
Fig. 2 is a kind of flow chart of accidental access method provided by the present application；
Fig. 3 is a kind of schematic diagram for sending leader sequence and random access information provided by the present application；
Fig. 4 is a kind of schematic diagram of common radio resources configuration information provided by the present application；
Fig. 5 is a kind of structure chart of terminal device provided by the present application；
Fig. 6 is a kind of structure chart of base station provided by the present application；
Fig. 7 is the structure chart of another terminal device provided by the present application；
Fig. 8 is the structure chart of another base station provided by the present application.
Specific embodiment
The application is described in further detail below in conjunction with attached drawing.
The embodiment of the present application provides a kind of accidental access method and device, to solve accidental access method in the prior art
Lead to that signaling overheads is larger, the higher problem of time delay.Wherein, herein described method and apparatus based on the same inventive concept, by
It is similar in the principle that method and device solves the problems, such as, therefore the implementation of apparatus and method can repeat place no longer with cross-reference
It repeats.
Hereinafter, the part term in the application is explained, in order to those skilled in the art understand that.
1), terminal device, also referred to as user equipment (user equipment, UE), are that one kind provides a user data
The equipment of connectivity, for example, handheld device, mobile unit, wearable device, calculating equipment with wireless connecting function,
Mobile station (mobile station, MS) or other processing equipments for being connected to radio modem etc., and through accessing net
The mobile terminal communicated with one or more core nets.
2), base station (base station, BS) is not that the equipment of wirelessly access is provided for terminal device, including but not
Be limited to: evolved node B (evolved Node B, eNB), radio network controller (radio network controller,
RNC), node B (Node B, NB), base station controller (base station controller, BSC), base transceiver station (base
Transceiver station, BTS), Home eNodeB (for example, home evolved NodeB or home Node B, HNB),
Base Band Unit (base band unit, BBU), access point (access point, AP), wireless access point (wireless
Fidelity access point, WiFi AP), worldwide interoperability for microwave accesses (worldwide interoperability
For microwave access, WiMAX) BS etc..
3), " multiple " in the embodiment of the present application, refer to two or more.
4), in the description of the present application, the vocabulary such as " first ", " second " are only used for distinguishing the purpose of description, and cannot manage
Solution is indication or suggestion relative importance, can not be interpreted as indication or suggestion sequence.
In order to more clearly from describe the technical solution of the embodiment of the present application, with reference to the accompanying drawing, to the embodiment of the present application
The accidental access method and device of offer are described in detail.
Fig. 1 shows a kind of applicable possible communication system of accidental access method provided by the embodiments of the present application, described
The framework of communication system includes: that (terminal device 1, terminal device 2, terminal are set as illustrated in the drawing for base station and multiple terminal devices
For 3 and terminal device 4).Wherein:
The base station, the terminal device in cell for controlling for the base station provide wirelessly access.For example, figure
Shown in 1, the base station controls cell 1 and cell 2, the terminal device (terminal device 1 as shown in figure 1 in the respectively described cell 1
With terminal device 2) and the cell 2 in terminal device (terminal device 3 and terminal device 4 as shown in figure 1) offer wirelessly connect
Enter service.
The multiple terminal device, for carrying out data service by the base station of cell ownership where access.For example, Fig. 1
Middle terminal device 1, terminal device 2 in the coverage area of the cell 1 of base station control, access the base station and are counted
According to business；Terminal device 3, terminal device 4 in the coverage area of the cell 2 of base station control, access the base station
Carry out data service.
Specifically, the multiple terminal device needs to establish connection by random access procedure and the base station, so that institute
Multiple terminal devices are stated to realize by accessing the base station progress data service.
It should be noted that communication system shown in FIG. 1 as just an example, is not limited to include shown in Fig. 1
Base station and multiple terminal devices.The communication system can also include multiple base stations and other equipment, specifically no longer arrange herein
It lifts.
A kind of accidental access method provided by the embodiments of the present application, suitable for communication system as shown in Figure 1, refering to Fig. 2
Shown, the detailed process of this method includes:
Step 201: base station configuration is comprising sending the running time-frequency resource position of leader sequence and sending the upper of random access information
The random access configuration information of row resource, and to random access configuration information described in end-point device broadcast.
Under normal conditions, base station can match confidence for the terminal equipment configuration random access in the cell of base station control
Breath, so that terminal device carries out random access according to the random access configuration information that base station configures.In a kind of optional embodiment party
In formula, when determining in current scene, the terminal device in multiple cells that the base station is controlled is connecing at random for the base station
It is fashionable, when may not need the random access response for waiting the base station to return can send random access information, the base station
It can be by the way that in random access configuration information, in addition to configuration sends the video resource position of leader sequence, transmission can also be configured
The ascending resource of random access information can be such that terminal device recognizes in this way and lead before sending when carrying out random access
Other than sequence, the base station described in the forward direction for receiving the random access response of the base station sends random access information, Jin Erxiang
For existing accidental access method, can save terminal device must could send at random until receiving random access response
The waiting time of access information, so as to reduce time delay.
For example, when a possibility that colliding between terminal device when above-mentioned described scene can be random access is very low, according to
It so will cause the scene of unnecessary time delay using existing accidental access method；It is also possible to base station and determines certain business needs
When low time delay, the scene of the configuration of random access information is carried out for setting business.Certainly, above-mentioned scene can also be other more
Kind scene, wherein can be the applicable various scenes of existing accidental access method, the application is not construed as limiting this.
Step 202: terminal device obtains the random access configuration information of the base station broadcast, determines that the random access is matched
Comprising sending the running time-frequency resource position of leader sequence and sending the ascending resource of random access information in confidence breath.
Specifically, the base station controls multiple cells, set in each cell in multiple cells comprising at least one terminal
Standby, the base station, for the random access configuration information for the terminal device for including in the cell, is in quilt to each Cell Broadcast CB
The available random access configuration information to the base station broadcast of any terminal equipment in broadcast cell.In the application
In, the terminal device gets the random access configuration information of the base station broadcast, can be used for illustrating that any one is small
Any one terminal device in area obtains the process of the random access configuration information of the correspondence of the base station broadcast cell.
In a kind of optional embodiment, the terminal device is by determining the random access got with confidence
Comprising sending the running time-frequency resource position of leader sequence and sending the ascending resource of random access information in breath, the end can be determined
End equipment returns to random access response when carrying out random access, without waiting for the base station, so that it may which the base station Xiang Suoshu is sent
The random access information, i.e., described terminal device can determination can carry out random access by executing step 203.
Step 203: the terminal device is based on the running time-frequency resource position and sends leader sequence to base station, and is receiving
Before the random access response that the base station returns, being sent based on the ascending resource to the base station includes the terminal device
Mark random access information.
Specifically, containing multiple leader sequences for random access and transmission pair in the random access configuration information
The running time-frequency resource position for the leader sequence answered, therefore, the terminal device are based on running time-frequency resource position and send leading sequence to base station
Column specific method can be with are as follows: the terminal device randomly chooses a leader sequence in the multiple leader sequence and passes through selection
The corresponding running time-frequency resource position of the leader sequence, the base station Xiang Suoshu sends the leader sequence of selection.The terminal device is logical
It crosses and sends a leader sequence to the base station to notify the base station to have random access request.
Further, since the leader sequence that the terminal device is sent to the base station in practice is the terminal
Equipment is randomly selected, the leading sequence that the leader sequence of the terminal device selection may be selected with other terminal devices
It arranges identical, and the competition between multiple terminal devices is caused, so it includes the end that the terminal device is sent to the base station
The random access information of the mark of end equipment, to notify the base station to send the mark of the terminal device of the leader sequence, with
The terminal device is set to determine the terminal device of competition triumph in the subsequent competition solved between multiple terminal devices.
In a kind of optional embodiment, when the terminal device executes step 203, specific method can be with are as follows:
First method: the terminal device can send the leader sequence to the base station, and synchronous to the base
It stands and sends the random access information, i.e., the described terminal device is to leader sequence described in the base station simultaneous transmission and described random
Access information；
Second method: the terminal device first can also send the leader sequence to the base station, then receive
Any time before the random access response returned to the base station sends the random access information to the base station.Its
In, specifically, usually the time window for returning to random access response to the terminal device has been preset in the base station, and can will preset
The information (length of initial position and the time window including the time window) of the time window broadcast the terminal and set
Standby, optionally, the information of the time window can be broadcast to the end by the random access configuration information by the base station
End equipment, therefore, the transmission of terminal device base station described in the forward direction for receiving the random access response is described to be connect at random
Enter information, can be any time before the time window of the random access response starts to the base station send it is described with
Machine access information.
In a kind of optional embodiment, the terminal device sends the leader sequence, Yi Jixiang to the base station
When the base station sends the random access information, specific method can be with are as follows: the terminal device is sent by PRACH to base station
The leader sequence, and the random access information is sent to the base station by PUSCH, lead to respectively for example, Fig. 3 is shown
Cross a kind of schematic diagram that the PRACH and PUSCH sends the leader sequence and the random access information.Pass through this side
Method, when can be transmitted in the same channel to avoid the leader sequence and the random access information caused by due to preempting resources
Caused by collide, while available channel resource can be made full use of, and then the success rate of transmission can be improved, so as to mention
High random access success rate.
Further, in a kind of optional embodiment, the base station can be in common radio resources configuration information
In the PUSCH resource common configuration (pusch-configcommon) configured in (radio resource configcommon),
It adds two field instructions to exempt to dispatch (grant free) transmission, as the PUSCH in Fig. 4 exempts from scheduling configuration index (pusch-
Grant free-ConfigIndex) field and PUSCH exempt to dispatch frequency deviation biasing (pusch-grant free-
Frequencyoffset) shown in field.Wherein, since the common radio resources configuration information is in addition to above-mentioned field, other words
The existing field of Duan Junyu is identical, therefore other fields are no longer discussed in detail herein.Described in being got when the terminal device
When the above-mentioned common radio resources configuration information of base station configuration, the terminal device is being sent out by the PUSCH to the base station
When sending the random access information, the random access information can be carried out exempting to adjust by the PUSCH based on above-mentioned configuration
Degree transmission.
Step 204: described when the base station determines the leader sequence and the random access information receives successfully
Base station sends the first random access response comprising the first contention resolution message, first contention resolved to the terminal device
The Terminal Equipment Identifier that message includes is the mark of the terminal device.
Specifically, after the base station receives the leader sequence and the random access information, by identifying the end
The leader sequence that end equipment is sent determines one in multiple leader sequences that the leader sequence is base station configuration,
The terminal for sending the leader sequence is determined by the mark for the terminal device for including in the random access information simultaneously
Equipment, and when determining that the terminal device is competed successfully based on contention resolution strategy, the mark of the terminal device is included in
In first contention resolution message, then carries and be sent to the terminal device in first random access response, with
When the terminal device being made to receive first random access response, by the determination first contention resolution message
When the mark for the terminal device for including and the mark of itself match, determines and oneself compete successfully, i.e. random access success.
It can also include that wireless heterogeneous networks connect in a kind of optional embodiment, in the random access information
(radio resource control, RRC) connection request can also include RRC connection in first random access response
Response；It can also include mark (the random access preamble of the leader sequence in the random access information
ID, RAPID) so that mark and the leader sequence after the base station receives the leader sequence, by the leader sequence
It is matched；It can also include the mark (RAPID) of the leader sequence recognized in first random access response, so that institute
The mark for stating the leader sequence that the RAPID that terminal device determines that the base station is sent is sent with itself matches, and
Determine receiving random access response success；It can also include buffer status report (buffer in the random access information
Status report, BSR), correspondingly, can also include uplink authorization (upload in first random access response
Grant, UL grant) information, so that the subsequent progress data transmission of the terminal device.Apart from the above description, described first with
It can also include Timing Advance (time advance, TA) in machine access response, so that the terminal device is subsequent according to institute
It states TA and sends data to the base station in advance.Certainly, in the random access information and the first random access response information
It can also include other information, will not enumerate herein.
After the terminal device has sent the leader sequence and the random access information to the base station, in addition to upper
State the base station receive the leader sequence and the random access information it is successful except in the case of, it is also possible to there are following three kinds
Situation:
The first situation: the leader sequence reception failure, the random access information receive successfully；
Second situation: the leader sequence receives successfully, the random access information reception failure；
The third situation: the leader sequence and the equal reception failure of the random access information.
It is in the first case described above, described when the leader sequence reception failure in a kind of optional embodiment
When random access information is received successfully, it includes random back value (backoff that the base station is returned to the terminal device
Indicator, BI) response message, wherein the random back value, which is used to indicate the terminal device, retransmits the leading sequence
The time interval of column；When the terminal device receives the response message, the terminal device can recognize the base
It stood and does not receive the leader sequence, and according to the random back value, at the upper time point for once sending the leader sequence
The leader sequence is retransmitted to the base station after the time interval later；The base station receives the terminal device weight
When the leader sequence passed, Xiang Suoshu terminal device sends the second random access response comprising the second contention resolution message,
The Terminal Equipment Identifier that second contention resolution message includes is the mark of the terminal device.Optionally, in the terminal
After equipment retransmits the leader sequence, the base station receives the leader sequence and still fails, i.e., the described leader sequence, which retransmits, to be lost
It loses, the base station sends the corresponding message comprising the random back value to the terminal device again, so that the terminal is set
Standby to retransmit the leader sequence again, the terminal device repeats above-mentioned retransmissions steps.If reaching the terminal device to retransmit
When the maximum retransmission of the leader sequence, the base station no longer sends instruction to the terminal device and retransmits leader sequence
Response message, but the successfully random access information is received before discharging, so that the terminal device restarts to execute
Random access procedure.
Wherein, second contention resolution message can be identical as first contention resolution message, and described second is random
Access response can be identical as first random access response.
It is described when the leader sequence receives successfully under above-mentioned second situation in a kind of optional embodiment
When random access information reception failure, the base station can return according to existing accidental access method to the terminal device random
Access response, then the terminal device sends the random access to the base station again after receiving the random access response
Information.Since in that case, random access procedure is identical as existing random access procedure, specific details are not described herein again.
In a kind of optional embodiment, in the third case described above, the leader sequence and the random access
When the equal reception failure of information, in the time window of random access response, the base station will not return any to the terminal device
Accidental access response message, i.e., the described terminal device do not receive the random response message of base station, Jin Ersuo within the time
203 can be re-execute the steps by stating terminal device, i.e., retransmit the leader sequence and the random access information to the base station, after
Afterflow journey is identical as the process that above-mentioned steps 203 to step 204 are related to, and it is no longer repeated herein.
Using accidental access method provided by the embodiments of the present application, base station has been pre-configured with terminal device and has sent random access
The ascending resource of information, so that terminal device can without waiting for retransmiting random access after base station returns to random access response
Information, and then the leader sequence and random access information for sending base station according to terminal device are returned to terminal device and are wrapped
Random access response containing contention resolution message, to notify the success of terminal device random access, in this way, relative to existing random
Cut-in method, saving terminal device must be until the waiting of random access information could be sent by receiving random access response
Between, and feedback contention-based solution message and random access response can also be fed back to together terminal device by base station, also further
Turn-on time is saved, so that process is reduced for random access procedure compared with the existing technology, it is possible to reduce signaling overheads,
Reduce time delay.
Based on above embodiments, the embodiment of the present application also provides a kind of terminal device, which is applied to such as Fig. 1
Shown in communication system, for realizing the function of terminal device in accidental access method as shown in Figure 2.As shown in fig.5, should
Terminal device 500 includes: transceiver 501 and processor 502, in which:
It is connected with each other between the transceiver 501, the processor 502.Optionally, the transceiver 501, the processing
Device 502 is connected with each other by bus 503；The bus 503 can be Peripheral Component Interconnect standard (Peripheral
Component Interconnect, PCI) bus or expanding the industrial standard structure (Extended Industry Standard
Architecture, EISA) bus etc..The bus can be divided into address bus, data/address bus, control bus etc..For convenient for
It indicates, is only indicated with a thick line in Fig. 5, it is not intended that an only bus or a type of bus.
When realizing accidental access method as shown in Figure 2, the processor 502 passes through described the terminal device 500
Transceiver 501 obtains the random access configuration information of base station broadcast, determines in the random access configuration information to include before sending
It leads the running time-frequency resource position of sequence and sends the ascending resource of random access information；When being based on described by the transceiver 501
Frequency resource location sends leader sequence to base station, and receives the random access that the base station returns in the transceiver 501 and ring
Before answering, the random access information of the mark comprising the terminal device is sent to the base station based on the ascending resource；When
When the leader sequence and the random access information are sent successfully, the base station is received by the transceiver 501 and is returned
The first random access response comprising the first contention resolution message, the terminal device mark that first contention resolution message includes
Know the mark for the terminal device.
In a kind of optional embodiment, fail when the leader sequence is sent, the random access information send at
When function, the processor 502 also receives the response comprising random back value that the base station returns by the transceiver 501 and disappears
Breath, wherein the random back value is used to indicate the time interval that the terminal device retransmits the leader sequence；According to described
Random back value, again to the base after the time interval after the upper time point for once sending the leader sequence
It stands and sends the leader sequence, and when the re-transmission leader sequence retransmits successfully, receive the base station return includes second
Second random access response of contention resolution message, the Terminal Equipment Identifier that second contention resolution message includes are the end
The mark of end equipment.
In a kind of optional embodiment, the processor 502 is being sent by the transceiver 701 to the base station
The leader sequence, and to the base station send the random access information when, can by PRACH to base station send described in
Leader sequence, and the random access information is sent to the base station by PUSCH.
Specifically, the processor 502 can be central processing unit (central processing unit, CPU), net
The combination of network processor (network processor, NP) or CPU and NP.The processor 502 can further include
Hardware chip.Above-mentioned hardware chip can be specific integrated circuit (application-specific integrated
Circuit, ASIC), programmable logic device (programmable logic device, PLD) or combinations thereof.Above-mentioned PLD can
To be Complex Programmable Logic Devices (complex programmable logic device, CPLD), field programmable logic
Gate array (field-programmable gate array, FPGA), Universal Array Logic (generic array logic,
GAL) or any combination thereof.When the processor 502 states function in realization, hardware realization can be passed through, naturally it is also possible to logical
It crosses hardware and executes corresponding software realization.
Using terminal device provided by the embodiments of the present application, by determining that base station has been pre-configured with transmission random access information
Ascending resource, it may not be necessary to retransmit random access information after waiting base station to return to random access response, and then make base station
The leader sequence and random access information that can be sent according to terminal device, return to terminal device comprising contention resolution message
Random access response, to notify the success of terminal device random access, in this way, being saved relative to existing accidental access method
Terminal device must could send the waiting time of random access information until receiving random access response, and base station may be used also
Feedback contention-based solution message and random access response are fed back to terminal device together, turn-on time is also further saved,
To which process is reduced for random access procedure compared with the existing technology, it is possible to reduce signaling overheads reduces time delay.
Based on above embodiments, the embodiment of the present application also provides a kind of base station, which leads in as shown in Figure 1
Letter system, for realizing the function of base station in accidental access method as shown in Figure 2.As shown in fig.6, the base station 600 includes:
Transceiver 601 and processor 602, in which:
It is connected with each other between the transceiver 601, the processor 602.The transceiver 601, the processor 602 are logical
Cross the interconnection of bus 603；The bus 603 can be pci bus or eisa bus etc..It is total that the bus can be divided into address
Line, data/address bus, control bus etc..Only to be indicated with a thick line in Fig. 6 convenient for indicating, it is not intended that only one total
Line or a type of bus.
When realizing accidental access method as shown in Figure 2, the configuration of processor 602 is comprising sending for the base station 600
The random access configuration information of the ascending resource of the running time-frequency resource position and transmission random access information of leader sequence, by described
Transceiver 601 is to random access configuration information described in end-point device broadcast；And the terminal is received by the transceiver 601 and is set
What it is for the leader sequence sent based on the running time-frequency resource position and based on ascending resource transmission includes the terminal device
Mark random access information；When determining that the leader sequence and the random access information receive successfully, pass through institute
State transceiver 601 to the terminal device send include the first contention resolution message the first random access response, described first
The Terminal Equipment Identifier that contention resolution message includes is the mark of the terminal device.
In a kind of optional embodiment, when determining the leader sequence reception failure, the random access information is connect
When harvest function, the processor 602 returns to the response comprising random back value to the terminal device by the transceiver 601
Message, wherein the random back value is used to indicate the time interval that the terminal device retransmits the leader sequence；Correspondingly,
The processor 602 also by the transceiver 601 receive the terminal device according to the random back value, in upper primary hair
Send the leader sequence retransmitted after the time interval after time point of the leader sequence, and then to the terminal
Equipment sends the second random access response comprising the second contention resolution message, the terminal that second contention resolution message includes
Device identification is the mark of the terminal device.
In a kind of optional embodiment, the processor 602 is set receiving the terminal by the transceiver 601
When the leader sequence and the random access information that preparation is sent, it can receive what the terminal device was sent by PRACH
The leader sequence, and the random access information sent by PUSCH.
Specifically, the processor 602 can be the combination of CPU, NP or CPU and NP.The processor 602 can be with
It further comprise hardware chip.Above-mentioned hardware chip can be ASIC, PLD or combinations thereof.Above-mentioned PLD can be CPLD, FPGA,
GAL or any combination thereof.When the processor 602 states function in realization, hardware realization can be passed through, naturally it is also possible to pass through
Hardware executes corresponding software realization.
Using base station provided by the embodiments of the present application, it is pre-configured with the uplink money that terminal device sends random access information
Source so that terminal device can without waiting for retransmiting random access information after base station returns to random access response, and then makes
The leader sequence and random access information that base station can be sent according to terminal device, return to terminal device and disappear comprising contention resolved
The random access response of breath, to notify the success of terminal device random access, in this way, relative to existing accidental access method, section
The waiting time of random access information, and base station must could be sent until receiving random access response by having saved terminal device
Feedback contention-based solution message and random access response can also be fed back to terminal device together, when also further saving access
Between, so that process is reduced for random access procedure compared with the existing technology, it is possible to reduce signaling overheads reduces time delay.
Based on above embodiments, the embodiment of the present application also provides a kind of terminal device, the terminal device is applied to such as
Communication system shown in FIG. 1, for realizing the function of terminal device in accidental access method as shown in Figure 2.Refering to Fig. 7 institute
Show, the terminal device 700 includes: transceiver 701, processor 702 and memory 703, and the processor 702 can be
The combination of CPU, NP or CPU and NP.The processor 702 can further include hardware chip.Above-mentioned hardware chip can
To be ASIC, PLD or combinations thereof.Above-mentioned PLD can be CPLD, FPGA, GAL or any combination thereof.
It is connected with each other between the transceiver 701, the processor 702 and the memory 703.Optionally, described
Transceiver 701, the processor 702 and the memory 703 are connected with each other by bus 704；The bus 704 can be
Peripheral Component Interconnect standard (Peripheral Component Interconnect, PCI) bus or expanding the industrial standard structure
(Extended Industry Standard Architecture, EISA) bus etc..It is total that the bus can be divided into address
Line, data/address bus, control bus etc..Only to be indicated with a thick line in Fig. 7 convenient for indicating, it is not intended that only one total
Line or a type of bus.
For the terminal device 700 when realizing accidental access method as shown in Figure 2, the transceiver 701 receives and hair
Send data；The processor 702 is determined for obtaining the random access configuration information of base station broadcast by the transceiver 701
Comprising sending the running time-frequency resource position of leader sequence and sending the uplink of random access information in the random access configuration information
Resource；The running time-frequency resource position is based on by the transceiver 701 and sends leader sequence to base station, and is receiving the base
It stands before the random access response returned, the mark comprising the terminal device is sent to the base station based on the ascending resource
Random access information；When the leader sequence and the random access information are sent successfully, pass through the transceiver 701
Receive the first random access response comprising the first contention resolution message that the base station returns, first contention resolution message
The Terminal Equipment Identifier for including is the mark of the terminal device.
In a kind of optional embodiment, the processor 702 is also used to: fail when the leader sequence is sent, institute
When stating random access information and sending successfully, by the transceiver 701 receive that the base station returns comprising random back value
Response message, wherein the random back value is used to indicate the time interval that the terminal device retransmits the leader sequence；Root
According to the random back value, passed through institute after the time interval after the upper time point for once sending the leader sequence
It states transceiver 701 and sends the leader sequence to the base station again, and when the leader sequence retransmits successfully, by described
Transceiver 701 receives the second random access response comprising the second contention resolution message that the base station returns, and described second is competing
Strive the mark for solving that the Terminal Equipment Identifier that message includes is the terminal device.
In a kind of optional embodiment, the processor 702, which is based on the transceiver 701, can pass through physical accidental
It accesses channel PRACH and sends the leader sequence to base station, and sent out by Physical Uplink Shared Channel PUSCH to the base station
Send the random access information.
The memory 703, for storing program etc..Specifically, program may include program code, the program code packet
Include computer operation instruction.The memory 703 may include RAM, it is also possible to further include nonvolatile memory (non-
Volatile memory), a for example, at least magnetic disk storage.The processor 702 executes the memory 703 and is stored
Application program, above-mentioned function is realized, to realize accidental access method as shown in Figure 2.
Using terminal device provided by the embodiments of the present application, by determining that base station has been pre-configured with transmission random access information
Ascending resource, it may not be necessary to retransmit random access information after waiting base station to return to random access response, and then make base station
The leader sequence and random access information that can be sent according to terminal device, return to terminal device comprising contention resolution message
Random access response, to notify the success of terminal device random access, in this way, being saved relative to existing accidental access method
Terminal device must could send the waiting time of random access information until receiving random access response, and base station may be used also
Feedback contention-based solution message and random access response are fed back to terminal device together, turn-on time is also further saved,
To which process is reduced for random access procedure compared with the existing technology, it is possible to reduce signaling overheads reduces time delay.
Based on above embodiments, the embodiment of the present application also provides a kind of base station, the base station applies are in as shown in Figure 1
Communication system, for realizing the function of base station in accidental access method as shown in Figure 2.As shown in fig.8, the base station 800
Include: transceiver 801, processor 802 and memory 803, wherein the processor 802 can be CPU, NP or CPU and
The combination of NP.The processor 802 can further include hardware chip.Above-mentioned hardware chip can be ASIC, PLD or its
Combination.Above-mentioned PLD can be CPLD, FPGA, GAL or any combination thereof.
It is connected with each other between the transceiver 801, the processor 802 and the memory 803.Optionally, described
Transceiver 801, the processor 802 and the memory 803 are connected with each other by bus 804；The bus 804 can be
Peripheral Component Interconnect standard (Peripheral Component Interconnect, PCI) bus or expanding the industrial standard structure
(Extended Industry Standard Architecture, EISA) bus etc..It is total that the bus can be divided into address
Line, data/address bus, control bus etc..Only to be indicated with a thick line in Fig. 8 convenient for indicating, it is not intended that only one total
Line or a type of bus.
When realizing accidental access method as shown in Figure 2, the transceiver 801 sends and receivees number for the base station 800
According to；The processor 802 includes running time-frequency resource position and the transmission random access information for sending leader sequence for configuring
The random access configuration information of row resource, and confidence is matched to random access described in end-point device broadcast by the transceiver 801
Breath；The leader sequence and be based on that the terminal device is sent based on the running time-frequency resource position are received by the transceiver 801
The random access information for the mark comprising the terminal device that the ascending resource is sent；When determining the leader sequence and institute
When stating random access information and receiving successfully, is sent by the transceiver 801 to the terminal device and solved comprising the first competition
Certainly the first random access response of message, the Terminal Equipment Identifier that first contention resolution message includes are the terminal device
Mark.
In a kind of optional embodiment, the processor 802 is also used to: being lost when determining that the leader sequence receives
It loses, when the random access information is received successfully, being returned by the transceiver 801 to the terminal device includes random back
The response message of value, wherein the random back value was used to indicate between the time that the terminal device retransmits the leader sequence
Every；The terminal device, which is received, by the transceiver 801 once sends the leading sequence according to the random back value, upper
The leader sequence retransmitted after the time interval after the time point of column, and by the transceiver 801 to described
Terminal device sends the second random access response comprising the second contention resolution message, and second contention resolution message includes
Terminal Equipment Identifier is the mark of the terminal device.
In a kind of optional embodiment, the processor 802 receives the terminal device by the transceiver 801
When the leader sequence and the random access information that send, it can be connect by receiving the terminal device by physical accidental
Enter the leader sequence of channel PRACH transmission, and the random access sent by Physical Uplink Shared Channel PUSCH
Information.
The memory 803, for storing program etc..Specifically, program may include program code, the program code packet
Include computer operation instruction.The memory 803 may include RAM, it is also possible to further include nonvolatile memory (non-
Volatile memory), a for example, at least magnetic disk storage.The processor 802 executes the memory 803 and is stored
Application program, above-mentioned function is realized, to realize accidental access method as shown in Figure 2.
Using base station provided by the embodiments of the present application, it is pre-configured with the uplink money that terminal device sends random access information
Source so that terminal device can without waiting for retransmiting random access information after base station returns to random access response, and then makes
The leader sequence and random access information that base station can be sent according to terminal device, return to terminal device and disappear comprising contention resolved
The random access response of breath, to notify the success of terminal device random access, in this way, relative to existing accidental access method, section
The waiting time of random access information, and base station must could be sent until receiving random access response by having saved terminal device
Feedback contention-based solution message and random access response can also be fed back to terminal device together, when also further saving access
Between, so that process is reduced for random access procedure compared with the existing technology, it is possible to reduce signaling overheads reduces time delay.
In conclusion providing a kind of accidental access method by the embodiment of the present application and device, base station have been pre-configured with end
End equipment sends the ascending resource of random access information, so that terminal device can without waiting for base station and return to random access sound
Should after retransmit random access information, and then the leader sequence and random access that send base station according to terminal device are believed
Breath returns to the random access response comprising contention resolution message to terminal device, to notify the success of terminal device random access, this
Sample, relative to existing accidental access method, saving terminal device must could send until receiving random access response
The waiting time of random access information, and base station can also feed back together feedback contention-based solution message and random access response
To terminal device, turn-on time is also further saved, so that process subtracts for random access procedure compared with the existing technology
It is few, it is possible to reduce signaling overheads reduces time delay.
It should be understood by those skilled in the art that, embodiments herein can provide 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, it wherein includes the computer of computer usable program code that the application, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
The application is referring to method, the process of equipment (system) and computer program product according to the embodiment of the present application
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or 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 counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart 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 various modification and variations without departing from this Shen to the embodiment of the present application
Please embodiment range.In this way, if these modifications and variations of the embodiment of the present application belong to the claim of this application and its wait
Within the scope of technology, then the application is also intended to include these modifications and variations.
Claims (15)
1. a kind of accidental access method characterized by comprising
Terminal device obtains the random access configuration information of base station broadcast, determines in the random access configuration information comprising sending
The running time-frequency resource position of leader sequence and the ascending resource for sending random access information；
The terminal device is based on the running time-frequency resource position and sends leader sequence to base station, and returns receiving the base station
Random access response before, based on the ascending resource to the base station send comprising the terminal device mark it is random
Access information；
When the leader sequence and the random access information are sent successfully, the terminal device receives the base station and returns
The first random access response comprising the first contention resolution message, the terminal device mark that first contention resolution message includes
Know the mark for the terminal device.
2. the method as described in claim 1, which is characterized in that the method also includes:
Fail when the leader sequence is sent, when the random access information is sent successfully, the terminal device receives the base
It stands the response message comprising random back value returned, wherein the random back value is used to indicate terminal device re-transmission institute
State the time interval of leader sequence；
The terminal device passed through institute according to the random back value after the upper time point for once sending the leader sequence
The leader sequence is sent to the base station again after stating time interval, and when the leader sequence retransmits successfully, receives institute
The second random access response comprising the second contention resolution message of base station return is stated, second contention resolution message includes
Terminal Equipment Identifier is the mark of the terminal device.
3. method according to claim 1 or 2, which is characterized in that the terminal device sends described leading to the base station
Sequence, and the random access information is sent to the base station, comprising:
The terminal device sends the leader sequence to base station by Physical Random Access Channel PRACH, and passes through physics
Uplink Shared Channel PUSCH sends the random access information to the base station.
4. a kind of accidental access method characterized by comprising
Running time-frequency resource position of the base station configuration comprising transmission leader sequence is random with the ascending resource for sending random access information
Configuration information is accessed, and to random access configuration information described in end-point device broadcast；
The base station receives the leader sequence that the terminal device is sent based on the running time-frequency resource position and based on the uplink
The random access information for the mark comprising the terminal device that resource is sent；
When the base station determines the leader sequence and the random access information receives successfully, the base station is to the end
End equipment sends the first random access response comprising the first contention resolution message, the end that first contention resolution message includes
End equipment is identified as the mark of the terminal device.
5. method as claimed in claim 4, which is characterized in that the method also includes:
When the base station determines the leader sequence reception failure, when the random access information is received successfully, the base station to
The terminal device returns to the response message comprising random back value, sets wherein the random back value is used to indicate the terminal
The standby time interval for retransmitting the leader sequence；
The base station receive the terminal device according to the random back value, in the upper time for once sending the leader sequence
The leader sequence retransmitted after the time interval after point, and send to the terminal device comprising the second competition solution
Certainly the second random access response of message, the Terminal Equipment Identifier that second contention resolution message includes are the terminal device
Mark.
6. method as described in claim 4 or 5, which is characterized in that the base station receives the described of the terminal device transmission
Leader sequence and the random access information, comprising:
The base station receives the leader sequence that the terminal device is sent by Physical Random Access Channel PRACH, and
The random access information sent by Physical Uplink Shared Channel PUSCH.
7. a kind of terminal device characterized by comprising
Memory, for storing program instruction；
Transceiver, for sending and receiving data；
Processor, for calling the program instruction of storage in the memory to execute following methods:
The random access configuration information that base station broadcast is obtained by the transceiver, determines and wraps in the random access configuration information
Ascending resource containing the running time-frequency resource position and transmission random access information that send leader sequence；
The running time-frequency resource position is based on by the transceiver and sends leader sequence to base station, and is returned receiving the base station
Return random access response before, based on the ascending resource to the base station send comprising the terminal device mark with
Machine access information；
When the leader sequence and the random access information are sent successfully, the base station is received by the transceiver and is returned
The first random access response comprising the first contention resolution message returned, the terminal device that first contention resolution message includes
It is identified as the mark of the terminal device.
8. terminal device as claimed in claim 7, which is characterized in that the processor is also used to:
Fail when the leader sequence is sent, when the random access information is sent successfully, by described in transceiver reception
The response message comprising random back value that base station returns retransmits wherein the random back value is used to indicate the terminal device
The time interval of the leader sequence；
According to the random back value, after the upper time point for once sending the leader sequence after the time interval
The leader sequence is sent to the base station again by the transceiver, and when the leader sequence retransmits successfully, is passed through
The transceiver receives the second random access response comprising the second contention resolution message that the base station returns, and described second is competing
Strive the mark for solving that the Terminal Equipment Identifier that message includes is the terminal device.
9. terminal device as claimed in claim 7 or 8, which is characterized in that the processor is passing through the transceiver to institute
When stating base station and send the leader sequence, and sending the random access information to the base station, it is specifically used for:
The leader sequence is sent to base station by Physical Random Access Channel PRACH, and passes through Physical Uplink Shared Channel
PUSCH sends the random access information to the base station.
10. a kind of base station characterized by comprising
Memory, for storing program instruction；
Transceiver, for sending and receiving data；
Processor, for calling the program instruction of storage in the memory to execute following methods:
Random access of the configuration comprising sending the running time-frequency resource position of leader sequence and the ascending resource of transmission random access information
Configuration information, and by the transceiver to random access configuration information described in end-point device broadcast；
Leader sequence that the terminal device is sent based on the running time-frequency resource position is received by the transceiver and based on institute
State the random access information of the mark comprising the terminal device of ascending resource transmission；
When determining that the leader sequence and the random access information receive successfully, by the transceiver to the terminal
Equipment sends the first random access response comprising the first contention resolution message, the terminal that first contention resolution message includes
Device identification is the mark of the terminal device.
11. base station as claimed in claim 10, which is characterized in that the processor is also used to:
When determining the leader sequence reception failure, when the random access information is received successfully, by the transceiver to institute
It states terminal device and returns to the response message comprising random back value, wherein the random back value is used to indicate the terminal device
Retransmit the time interval of the leader sequence；
The terminal device, which is received, by the transceiver once sends the leader sequence according to the random back value, upper
Time point after the leader sequence that is retransmitted after the time interval, and set by the transceiver to the terminal
Preparation send the second random access response comprising the second contention resolution message, and the terminal that second contention resolution message includes is set
The standby mark for being identified as the terminal device.
12. base station as described in claim 10 or 11, which is characterized in that the processor passes through described in transceiver reception
When the leader sequence and the random access information that terminal device is sent, it is specifically used for:
The leader sequence that the terminal device is sent by Physical Random Access Channel PRACH is received, and passes through physics
The random access information that Uplink Shared Channel PUSCH is sent.
13. a kind of computer storage medium, which is characterized in that be stored with the executable finger of computer in the computer storage medium
It enables, the computer executable instructions by the computer when being called for making the computer perform claim that 1-6 be required to appoint
Method described in one.
14. a kind of computer program product comprising instruction, which is characterized in that when the computer program product on computers
When operation, so that computer perform claim requires the described in any item methods of 1-6.
15. a kind of chip, which is characterized in that the chip is connected with memory, deposits for reading and executing in the memory
The program instruction of storage, to realize method described in any one of claims 1-6.
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| CN201711192217.7A CN109842954A (en) | 2017-11-24 | 2017-11-24 | A kind of accidental access method and device |
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| CN201711192217.7A CN109842954A (en) | 2017-11-24 | 2017-11-24 | A kind of accidental access method and device |
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Application publication date: 20190604 |