CN107333337B - A kind of accidental access method and device based on space grouping - Google Patents
A kind of accidental access method and device based on space grouping Download PDFInfo
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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
- H04W72/00—Local resource management
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- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0833—Random access procedures, e.g. with 4-step access
- H04W74/0841—Random access procedures, e.g. with 4-step access with collision treatment
- H04W74/085—Random access procedures, e.g. with 4-step access with collision treatment collision avoidance
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The embodiment of the invention provides a kind of accidental access methods and device based on space grouping, are applied to the network equipment, comprising: receive the random access request that multiple terminal devices are sent；According to the mark of multiple terminal devices, equipment group belonging to each terminal device in multiple terminal devices is determined respectively；In multiple terminal devices, the first terminal equipment for belonging to target device group is determined；Random access processing is carried out to first terminal equipment.Using the technical solution of the embodiment of the present invention, solves the problems, such as the unjustness in the random access procedure based on time advance information, also the collision probability for reducing random access procedure to a certain extent, improves the rate of being successfully accessed, and reduces the energy consumption of terminal device and the network equipment indirectly.
Description
Technical field
The present invention relates to wireless communication technology field, more particularly to a kind of accidental access method based on space grouping and
Device.
Background technique
Traditional random access procedure is competing by the method progress uplink channel resources that terminal device randomly chooses leader sequence
It strives, to solve the problems, such as limited channel resources distribution.But with the increase of terminal device quantity, collision probability also increases therewith
Add, to affect the resource allocation performance of system.
In order to reduce the collision probability of terminal, there has been proposed a kind of terminals based on the limitation access of time advance information to set
The technical solution of standby quantity, as shown in Figure 1, the program includes the following steps:
Available leader sequence is broadcast to terminal device by the network equipment；
Terminal device is randomly chosen leader sequence, and passes through PRACH (Physical Random Access
Channel, Physical Random Access Channel) to the network equipment send random access request, wherein taken in the random access request
Mark with the terminal device selected leader sequence and the terminal device；
The random access request that the network equipment is sent according to the terminal device passes through PDSCH (Physical
Downlink Shared Channel, Physical Downlink Shared Channel) Xiang Suoshu terminal device transmission RAR (Random-Access-
Response, random access response) information；Wherein, described to send random access response RAR information, packet to the terminal device
It includes:
Described in being determined on the leader sequence according to the autocorrelation performance of the selected leader sequence of the terminal device
Terminal device number；If the terminal device on the leader sequence only one, send the RAR information to the end
End equipment；If the terminal device on the leader sequence has multiple, the RAR information is sent to the terminal device
The terminal device of the time advance information in preset time advance information section；
The terminal device passes through PUSCH (Physical Uplink Shared according to the RAR information received
Channel, Physical Uplink Shared Channel) Xiang Suoshu network equipment transmission scheduling information；
The network equipment sends contention resolution message according to the received scheduling information of institute, Xiang Suoshu terminal device；
After terminal device is successfully accessed, data can be mutually sent with the network equipment.
Wherein, the time advance information in the technical solution is network equipment information transmission between terminal device according to it
Time delay calculated terminal device to the distance of LA Management Room, the siding-to-siding block length in preset time advance information section is by net
Network equipment is determining and constant within the quite a long time, and the start-stop range in preset time advance information section is set by network
The standby basis in its coverage area is uniformly distributed random determination.
Through the above technical solution as can be seen that the random access scheme based on time advance information is mentioned by preset time
The probability that preceding information section makes multiple terminal devices be assigned to same PUSCH substantially reduces, and touches to significantly reduce
Probability is hit, the rate of being successfully accessed is improved.But since the siding-to-siding block length in preset time advance information section is constant, in addition,
As shown in Fig. 2, the terminal device that the remoter range of range network device is covered is more, i.e., when the preset time advance information area
Between start-stop range it is bigger when, the terminal device for falling into the time advance information section is more.Therefore, simple given time mentions
Preceding information section can make probability of the farther away terminal device of range network device in given time advance information section bigger,
It is fiercer to compete, so that the terminal device of distant place has higher collision probability, leads to unjustness problem.
Summary of the invention
The embodiment of the present invention be designed to provide it is a kind of based on space grouping accidental access method, device and calculate
Machine readable storage medium storing program for executing, to solve the problems, such as the unjustness in the random access procedure based on time advance information.
In order to achieve the above objectives, the embodiment of the invention discloses a kind of accidental access method based on space grouping, applications
In the network equipment, which comprises
Receive the random access request that multiple terminal devices are sent, wherein carry in the random access request described
The mark of terminal device；
According to the mark of the multiple terminal device, each terminal device institute in the multiple terminal device is determined respectively
The equipment group of category；
In the multiple terminal device, the first terminal equipment for belonging to target device group, the target device group are determined
It is the equipment group that current time slots have the permission for accessing the network equipment；
Random access processing is carried out to the first terminal equipment.
In a kind of specific embodiment of the invention, the method also includes:
Statistics needs to access each terminal device of the network equipment when accessing the network equipment for the first time respectively
Time advance information；
According to the time advance information of each terminal device, initialization space point is carried out to each terminal device
Group.
In a kind of specific embodiment of the invention, the time advance information according to each terminal device,
The grouping of initialization space is carried out to each terminal device, comprising:
According to the corresponding time advance information of each terminal device, each terminal device is ranked up, is obtained
To the sequence of terminal device；
The sequence of the terminal device is divided into N number of equipment group, each equipment group is included in N number of equipment group
The quantity of terminal device is equal.
Described in each terminal device in a kind of specific embodiment of the invention, determination belongs to target device
Before the first terminal equipment of group, further includes:
Determine that current time slots have the packet sequence number for the permission for accessing the network equipment according to the mode of poll, it will be described
The corresponding equipment group of packet sequence number is as the target device group.
The terminal device choosing is also carried in a kind of specific embodiment of the invention, in the random access request
The leader sequence selected, it is described that access processing is carried out to the first terminal equipment, comprising:
When the number of the first terminal equipment is multiple, determine that each of target leader sequence set is leading respectively
The number of the corresponding first terminal equipment of sequence, the target leader sequence set by the first terminal equipment it is selected before
Lead sequence composition；
If the number of the corresponding first terminal equipment of each leader sequence in the target leader sequence set is 1,
Random access response RAR information is then sent to the first terminal equipment, so that the first terminal equipment accesses the network
Equipment；
If in the target leader sequence set, there are the numbers of the corresponding first terminal equipment of the first leader sequence to be greater than
1, then in the corresponding first terminal equipment of first leader sequence, determine corresponding time advance information in the preset time
Second terminal equipment in Advanced information section sends random access response RAR information to the second terminal equipment, so that institute
It states second terminal equipment and accesses the network equipment.
In order to achieve the above objectives, it the embodiment of the invention also discloses a kind of accidental access device based on space grouping, answers
For the network equipment, described device includes:
Receiving module, for receiving the random access request of multiple terminal devices transmission, wherein the random access request
Carry the mark of the terminal device；
First determining module determines the multiple terminal device for the mark according to the multiple terminal device respectively
In each terminal device belonging to equipment group；
Second determining module, in the multiple terminal device, determining that the first terminal for belonging to target device group is set
Standby, the target device group is the equipment group that current time slots have the permission for accessing the network equipment；
Processing module, for carrying out random access processing to the first terminal equipment.
In a kind of specific embodiment of the invention, described device further include:
Statistical module needs to access each terminal device of the network equipment and is accessing the net for the first time for counting
Time advance information when network equipment；
Grouping module, for the time advance information according to each terminal device, to each terminal device into
Row initialization space grouping.
In a kind of specific embodiment of the invention, the grouping module, comprising:
Sequencing unit, for being set to each terminal according to the corresponding time advance information of each terminal device
It is standby to be ranked up, obtain the sequence of terminal device；
Division unit, it is each in N number of equipment group for the sequence of the terminal device to be divided into N number of equipment group
The quantity for the terminal device that equipment group is included is equal.
In a kind of specific embodiment of the invention, described device further include:
Third determining module, for before determining the first terminal equipment, when determining current according to the mode of poll
Gap has the equipment group sequence number for the permission for accessing the network side equipment, using the corresponding equipment group of the equipment group sequence number as
The target device group.
The terminal device choosing is also carried in a kind of specific embodiment of the invention, in the random access request
The leader sequence selected, the processing module, comprising:
Determination unit, for the number in the first terminal equipment be it is multiple when, respectively determine target preamble sequence set
The number of the corresponding first terminal equipment of each leader sequence in conjunction, the target leader sequence set is by the first terminal
The selected leader sequence composition of equipment；
First processing units, for the corresponding first terminal of each leader sequence in the target leader sequence set
In the case that the number of equipment is 1, random access response RAR information is sent to the first terminal equipment, so that described the
One terminal device accesses the network equipment；
The second processing unit is used in the target leader sequence set, and there are the first leader sequences corresponding first eventually
In the case that the number of end equipment is greater than 1, in the corresponding first terminal equipment of first leader sequence, when determining corresponding
Between second terminal equipment of the Advanced information in preset time advance information section, send random access response RAR information to
The second terminal equipment, so that the second terminal equipment accesses the network equipment.
In order to achieve the above objectives, the embodiment of the invention also discloses a kind of computer readable storage medium, the computers
It is stored with computer program in readable storage medium storing program for executing, any description above is realized when the computer program is executed by processor
Method and step.
As seen from the above technical solution, the embodiment of the invention provides it is a kind of based on space grouping accidental access method and
Device, when connecting for the first time with the network equipment after installing terminal equipment completion, the network equipment counts the terminal and sets
Standby time advance information simultaneously carries out the grouping of initialization space to the terminal device according to the sequence of the time advance information,
And guarantee that the terminal device quantity in each grouping is equal.In the random access procedure, worked as according to the determination of the mode of poll
Preceding time slot has the grouping for the permission for accessing the network equipment, so that there is the terminal of identical quantity to set in equal time interval
The channel resource of standby competition as much, the i.e. different far and near terminal devices of range network device equiprobable can be linked into net
Network equipment solves the problems, such as the unjustness in the random access procedure based on time advance information, also reduces to a certain extent
The collision probability of random access procedure, improves the rate of being successfully accessed, reduces the energy of terminal device and the network equipment indirectly
Consumption.
Certainly, it implements any of the products of the present invention or method must be not necessarily required to reach all the above excellent simultaneously
Point.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the signaling diagram of the radio access technology based on time advance information；
Fig. 2 is the unfair problem schematic diagram generated in the radio access technology based on time advance information；
Fig. 3 is a kind of initialization space grouping of accidental access method based on space grouping provided in an embodiment of the present invention
Flow diagram；
Fig. 4 is that a kind of accidental access method based on space grouping provided in an embodiment of the present invention is applied to the network equipment
Flow diagram；
Fig. 5 is a kind of initialization space grouping of accidental access device based on space grouping provided in an embodiment of the present invention
Structural schematic diagram.
Fig. 6 is that a kind of accidental access device based on space grouping provided in an embodiment of the present invention is applied to the network equipment
Structural schematic diagram；
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Firstly the need of explanation, the heretofore described network equipment includes the equipment that can connect network, such as base
It stands, relay station etc., is also possible to terminal device, being applicable in scene is that all terminal devices and network equipment position are fixed.
To solve the problems, such as unjustness in the prior art, the embodiment of the invention provides it is a kind of based on space grouping with
Machine cut-in method, device and computer readable storage medium.All fixed positions in the program, in network equipment coverage area
Terminal device in first time access network device, the network equipment terminal device can be carried out initialization space grouping.Fig. 3 is
A kind of initialization space of accidental access method based on space grouping provided in an embodiment of the present invention is grouped flow diagram, packet
It includes:
S301: respectively statistics need each terminal device of access network device in first time access network device when
Between Advanced information.
In an implementation, the network equipment can be to the multiple available leader sequences of end-point device broadcast in each time slot, and remember
The time that each leader sequence is broadcasted is recorded, when terminal device wants access network device for the first time after installation is complete,
A leader sequence is then randomly choosed from the multiple available leader sequences received, and is sent on prach to the network equipment
Random access request.The identification information and selected leader sequence of the terminal device are included at least in random access request.Net
Network equipment records the leader sequence in random access request after the random access request for receiving terminal device transmission
Receiving time；According to the leader sequence by the difference of time and the time being broadcasted that the network equipment receives in current time slots
The associated information calculations such as value go out the time advance information of the terminal device；By the time advance information of the terminal device and the terminal
The corresponding storage of the identification information of equipment is into the network equipment.
It should be noted that the time advance information of terminal device is influenced at a distance from LA Management Room by terminal device,
It is unrelated with selected leader sequence.Therefore, in the case where terminal device and fixed network equipment position, each terminal device
An only corresponding time advance information.
Wherein, the calculation method of the time advance information of terminal device is the prior art, is not being repeated herein.
S302: according to the corresponding time advance information of each terminal device, initialization space is carried out to each terminal device
Grouping.
Optionally, the network equipment can be ranked up terminal device according to time advance information, then further according to sequence
As a result terminal device is grouped, correspondingly, when the treatment process of S302 can be such that corresponding according to each terminal device
Between Advanced information, each terminal device is ranked up, the sequence of terminal device is obtained；The sequence of terminal device is divided into N
The quantity of a equipment group, the terminal device that each equipment group is included in N number of equipment group is equal.
In an implementation, the network equipment is first ranked up the time advance information of the terminal device counted on, then will
Corresponding each terminal device is arranged according to the ranking results, obtains the sequence of terminal device.
Wherein, the ordering rule of time advance information can arrange for ascending order, or descending arrangement；N is preset
Grouping group number, the numerical value can be determined by the related technical personnel of this field according to practical application scene.
In addition, the division of terminal device sequence can also have other modes, for example, being set with terminal included in equipment group
It is condition to divide that the difference for the terminal device number that standby number includes with average each equipment group, which is no more than preset difference,.It lifts
Example explanation, it is assumed that a total of 15 terminal devices, N value are 3, and preset difference is 1, then the end that average each equipment group includes
End equipment number is 5.The terminal device for including according to terminal device number included in equipment group and average each equipment group
It is division condition that the difference of number, which is no more than preset difference, 15 terminal devices is divided into 3 groups, then in this 3 groups of equipment groups
The terminal device number for being included can be respectively 4,5,6.
It should be noted that preset size of the difference can be by the related technical personnel of this field according to practical application scene
Be adjusted flexibly, preset difference is smaller, then the terminal device number that each equipment group is included is closer, that is, divide it is more uniform,
Competition in random access procedure between each terminal device is also more fair.
After initializing space grouping, if the terminal device in network equipment coverage area does not change, the grouping
Situation is no longer changed, and can arrange corresponding terminal device according to the grouping situation in subsequent each random access procedure
Access network device.If there is the terminal device newly increased in network equipment coverage area, need to reinitialize space grouping.
Fig. 4 is a kind of flow diagram of accidental access method based on space grouping provided in an embodiment of the present invention, should
Method is applied to the network equipment, comprising:
S401: the random access request that multiple terminal devices are sent is received.
Wherein, the mark of terminal device and the leader sequence of terminal device selection are at least carried in random access request,
Certainly, in practical application, other information can also be carried in the random access request, the application is defined not to this.
In an implementation, each time slot network equipment can all end-point device broadcasts into its coverage area it is available leading
Sequence, the number of leader sequence can have multiple, such as 3GPP LTE provides each cell for competing the leading of random access
Sequence number is no more than 64.Terminal device is after the leader sequence for receiving network equipment broadcast, if currently needing to access net
Network equipment then randomly chooses a leader sequence from the leader sequence received, then carries the leader sequence random
In access request, and then the random access request is sent to the network equipment by PRACH；If terminal device does not need currently to access
The network equipment does not then deal with the leader sequence received.If multiple terminal devices are in same time slot, to the same net
Network equipment sends random access request, then the network equipment can receive the random access request of multiple terminal devices transmission.
It should be noted that when only one terminal device has sent random access request, then in random access procedure
Without other terminal devices and its competitive channel resource, that is, unjustness problem, the radio access technology of the terminal device is not present
Same as the prior art, details are not described herein.
S402: it according to the mark of multiple terminal devices, is determined belonging to each terminal device in multiple terminal devices respectively
Equipment group.
In an implementation, when the grouping of initialization space, the network equipment has the identification information for storing each terminal device, time to mention
Preceding information and grouping situation.After the network equipment receives the random access request of multiple terminal devices, according to random access request
The mark of the terminal device of middle carrying it is compared with the identification information of network device itself storage, so that it is determined that multiple
Grouping, i.e. equipment group belonging to each terminal device in terminal device.
S403: in multiple terminal devices, the first terminal equipment for belonging to target device group is determined.
Wherein, target device group is the equipment group for the permission that current time slots have access network device.
In an implementation, the network equipment, respectively will be belonging to each terminal device in the multiple terminal devices of request access
The target device group for being grouped the permission for having access network device with current time slots compares.If grouping belonging to terminal device is just
It is the target device group for the permission that current time slots have access network device, it is determined that the terminal device is first terminal equipment.Example
Such as, it is assumed that terminal device sequence is divided into 1,2,3 three equipment group when initializing space and being grouped, and the target of current time slots is set
Standby group is the 2nd group, and the network equipment receives the random access request of 5 terminal devices transmission, and mark is respectively a, b, c, d, e.
Wherein, a and b belongs to the 1st group, and c and e belong to the 2nd group, and d belongs to the 3rd group, then current time slots are in this 5 terminal devices received
In, the terminal device for belonging to target device group only has c and e, and the terminal device for belonging to target device group is called first terminal and is set
It is standby.For other be not belonging to the terminal device of target device group or in subsequent access procedure access failure terminal device,
It then needs to wait random access next time.
In practical application, it can determine currently there is the packet sequence number of access authority in the way of poll, it is corresponding to locate
Reason process, which can be such that, determines that current time slots have the packet sequence number of the permission of access network device according to the mode of poll, will
The corresponding equipment group of packet sequence number is as target device group.
In random access procedure, in order to avoid the access of terminal device in the accidental access method based on time advance information
Permission is influenced by distance, and the network equipment each time slot by way of poll, which only assigns an equipment group, access authority.Example
Such as, in first time slot, the network equipment assigns the first grouping access authority, and in second time slot, the network equipment assigns second point
Group access authority, and so on.Therefore, the first grouping is the target device group of first time slot, and second packet is second
The target device group of a time slot.
The access sequence of each equipment group can be consistent with time slot, is also possible to arbitrarily to be arranged by technical staff, for example, false
If terminal device sequence is successively divided into 1,2,3 three equipment group when initializing space and being grouped, then according to the mode of poll
The case where assigning each equipment group access authority has: first time slot assigns the 1st group of access authority, and second time slot assigns the 2nd group
Access authority, third time slot assign the 3rd group of access authority, and the 4th time slot assigns the 1st group of access authority again, and so on；
Or first time slot assigns the 2nd group of access authority, second time slot assigns the 3rd group of access authority, and third time slot assigns the 1st
Group access authority, the 4th time slot assign the 2nd group of access authority, and so on；Or first time slot assigns the 3rd group of access right
Limit, second time slot assign the 1st group of access authority, and third time slot assigns the 2nd group of access authority, and the 4th time slot assigns the 3rd
Group access authority, and so on；
S404: random access processing is carried out to first terminal equipment.
After the network equipment has determined first terminal equipment, random access processing is carried out to first terminal equipment, i.e. network is set
It is standby that random access response RAR information is sent to first terminal terminal device by PDSCH first, it is carried in random access response
The network equipment is the information such as PUSCH mark that first terminal equipment is distributed, for sending scheduling information；Terminal device receives
After random access response RAR information, scheduling information is sent to the network equipment by PUSCH, then the network equipment is according to receiving
Scheduling information to terminal device send contention resolution message, so far random access procedure complete.
Due to scheduling information send and receive and the transmission of contention resolution message is the prior art, it is no longer superfluous herein
It states, the treatment process that the network equipment sends random access response RAR information to terminal device is mainly discussed in detail below.
In this step, after the network equipment, which determines, belongs to the first terminal equipment of target device group, it can also judge the
Whether the number of one terminal device is one, if the number of first terminal equipment be one, to the terminal device carry out with
The method of machine access processing is same as the prior art, and details are not described herein；If the number of first terminal equipment be it is multiple, need
First terminal equipment is further screened according to time advance information section, specific treatment process can be with are as follows: root
Determine the corresponding first terminal of each leader sequence in target leader sequence set respectively according to the autocorrelation performance of leader sequence
The number of equipment, target leader sequence set are made of the selected leader sequence of first terminal equipment；If target leader sequence
The number of the corresponding first terminal equipment of each leader sequence in set is 1, then send random access response RAR information to
First terminal equipment, so that the first terminal equipment access network device；If leading there are first in target leader sequence set
The number of the corresponding first terminal equipment of sequence is greater than 1, then in the corresponding first terminal equipment of the first leader sequence, determining pair
Second terminal equipment of the time advance information answered in preset time advance information section sends random access response RAR
Information gives second terminal equipment, so that second terminal equipment access network device.
In an implementation, since each terminal device is to select leader sequence by random manner, it is thus possible to meeting
There is the case where multiple terminal devices have selected the same leader sequence.So in above-mentioned steps, when first terminal equipment
When number is multiple, then there are two types of situations for target leader sequence set and the relationship of first terminal equipment room:
The first situation, multiple selected leader sequences of first terminal equipment are different, then target preamble sequence set
Each leader sequence in conjunction respectively corresponds 1 first terminal equipment.For example, it is assumed that have 5 first terminals equipment a, b, c, d,
E, each selected leader sequence of first terminal equipment are respectively A, B, C, D, E, then target preamble sequence set be combined into A, B, C, D,
E}。
Second situation has part first terminal equipment to select identical leader sequence in multiple first terminal equipment,
At this point, one or more leader sequences in target leader sequence set have respectively corresponded multiple first terminal equipment.For example, false
Equipped with 5 first terminal equipment a, b, c, d, e, each selected leader sequence of first terminal equipment is respectively A, B, A, B, C, i.e.,
A and c has selected same leader sequence A, b and d to select the same leader sequence B, then target preamble sequence set be combined into A, B,
C}.Wherein, the corresponding 2 first terminal equipment a and c of leader sequence A, leader sequence B corresponding 2 first terminal equipment b and d.?
The leader sequence that multiple first terminal equipment are corresponded in target leader sequence set is known as the first leader sequence.
Due to the corresponding channel resource of each leader sequence, for the first above-mentioned situation, i.e. target preamble sequence set
In conjunction, the corresponding first terminal equipment of each leader sequence, then the network equipment can directly transmit RAR information to corresponding first
Terminal device, so that the first terminal equipment access network device.Therefore, in above-mentioned corresponding example, the network equipment can be distinguished
To terminal device a, b, c, d, e send RAR information.
For above-mentioned second situation, i.e., when corresponding to multiple first terminal equipment in the presence of the first leader sequence, in order to reduce
Collision probability in subsequent access procedure avoids multiple terminal devices from sending information, network on same channel resource as far as possible
Equipment determines corresponding time advance information in the preset time in the corresponding multiple first terminal equipment of the first leader sequence
Second terminal equipment in Advanced information section sends random access response RAR information and gives the second terminal equipment so that this
Two terminal equipment access network equipment.Assume simultaneously in conjunction with corresponding example it is recognised that A and B are the first leader sequence
First terminal equipment of the time advance information in preset time advance information section has a and d, then a and d is second terminal
Equipment.Therefore, in this example embodiment, the network equipment only can send RAR information to terminal device a, d, e.
Wherein, preset time advance information section can be by the related technical personnel of this field according to practical application scene
Determine, alternatively, the network equipment can also be based on preset siding-to-siding block length, in its coverage area according to be uniformly distributed it is random really
It is fixed, and updated in each time slot dynamic, wherein the siding-to-siding block length can be changed no longer under same application scene.
As can be seen that a kind of random access side based on space grouping provided in an embodiment of the present invention from above steps
Method, by carrying out the grouping of initialization space to terminal device, and poll assign each grouping access authority, effective solution base
Unjustness problem in the random access procedure of time advance information；Meanwhile passing through grouping and time advance information section
Dual limitation, further reduced the collision probability in random access procedure, improve the rate of being successfully accessed.
Corresponding with a kind of above-mentioned accidental access method based on space grouping, the embodiment of the invention also provides one kind
Accidental access device based on space grouping.With a kind of initialization of the accidental access method based on space grouping shown in Fig. 3
Space grouping process is corresponding, and Fig. 5 is a kind of the first of accidental access device based on space grouping provided in an embodiment of the present invention
Beginningization space packet configuration schematic diagram, comprising:
In practical applications, grouping module 502 may include sequencing unit and division unit.
Sequencing unit, for arranging each terminal device according to the corresponding time advance information of each terminal device
Sequence obtains the sequence of terminal device；
Division unit, for the sequence of terminal device to be divided into N number of equipment group, each equipment group institute in N number of equipment group
The quantity for the terminal device for including is equal.
It is corresponding applied to the process of the network equipment with a kind of accidental access method based on space grouping shown in Fig. 4,
Fig. 6 is the structural representation that a kind of accidental access device based on space grouping provided in an embodiment of the present invention is applied to the network equipment
Figure, comprising:
Receiving module 601, for receiving the random access request of multiple terminal devices transmission, wherein random access request
Carry the mark of terminal device；
First determining module 602 determines every in multiple terminal devices respectively for the mark according to multiple terminal devices
Equipment group belonging to a terminal device；
Second determining module 603, in multiple terminal devices, determining that the first terminal for belonging to target device group is set
Standby, target device group is the equipment group for the permission that current time slots have access network device；
It in an implementation, further include third determining module before the second determining module 603, for determining that first terminal sets
Before standby, determine that current time slots have the equipment group sequence number of the permission of access network side equipment according to the mode of poll, by equipment
The corresponding equipment group of group sequence number is as target device group.
Processing module 604, for carrying out random access processing to first terminal equipment.
Wherein, processing module 604 can also comprise determining that unit, first processing units or the second processing unit.
Determination unit, for the number in first terminal equipment be it is multiple when, respectively determine target leader sequence set in
The corresponding first terminal equipment of each leader sequence number, target leader sequence set is selected by first terminal equipment
Leader sequence composition；
First processing units, for the corresponding first terminal equipment of each leader sequence in target leader sequence set
Number be 1 in the case where, send random access response RAR information to terminal device so that terminal equipment access network is set
It is standby；
The second processing unit, in target leader sequence set, there are the corresponding first terminals of the first leader sequence
In the case that the number of equipment is greater than 1, in the corresponding first terminal equipment of the first leader sequence, corresponding time advance is determined
It is whole to second to send random access response RAR information for second terminal equipment of the information in preset time advance information section
End equipment, so that second terminal equipment access network device.
The embodiment of the invention also provides a kind of computer readable storage medium, it is stored in computer readable storage medium
Computer program realizes Fig. 3 and a kind of connecing at random based on space grouping shown in Fig. 4 when computer program is executed by processor
Enter the method and step of method.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
Each embodiment in this specification is all made of relevant mode and describes, same and similar portion between each embodiment
Dividing may refer to each other, and each embodiment focuses on the differences from other embodiments.Especially for device reality
For applying example, since it is substantially similar to the method embodiment, so being described relatively simple, related place is referring to embodiment of the method
Part explanation.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the scope of the present invention.It is all
Any modification, equivalent replacement, improvement and so within the spirit and principles in the present invention, are all contained in protection scope of the present invention
It is interior.
Claims (7)
1. a kind of accidental access method based on space grouping, which is characterized in that the method is applied to the network equipment, the side
Method includes:
Receive the random access request that multiple terminal devices are sent, wherein the terminal is carried in the random access request
The mark of equipment；
According to the mark of the multiple terminal device, determined belonging to each terminal device in the multiple terminal device respectively
Equipment group；
In the multiple terminal device, the first terminal equipment for belonging to target device group is determined, the target device group is to work as
Preceding time slot has the equipment group for the permission for accessing the network equipment；
Random access processing is carried out to the first terminal equipment；
Respectively statistics need to access each terminal device of the network equipment when accessing the network equipment for the first time when
Between Advanced information；
According to the time advance information of each terminal device, the grouping of initialization space is carried out to each terminal device；
It is described in each terminal device, determination belong to before the first terminal equipment of target device group, further includes:
Determine that current time slots have the packet sequence number for the permission for accessing the network equipment according to the mode of poll, by the grouping
The corresponding equipment group of sequence number is as the target device group.
2. the method according to claim 1, wherein described believe according to the time advance of each terminal device
Breath carries out the grouping of initialization space to each terminal device, comprising:
According to the corresponding time advance information of each terminal device, each terminal device is ranked up, end is obtained
The sequence of end equipment；
The sequence of the terminal device is divided into N number of equipment group, the terminal that each equipment group is included in N number of equipment group
The quantity of equipment is equal.
3. being set the method according to claim 1, wherein also carrying the terminal in the random access request
The leader sequence of alternative, it is described that access processing is carried out to the first terminal equipment, comprising:
When the number of the first terminal equipment is multiple, each leader sequence in target leader sequence set is determined respectively
The number of corresponding first terminal equipment, the target leader sequence set is by the selected leading sequence of the first terminal equipment
Column composition；
If the number of the corresponding first terminal equipment of each leader sequence in the target leader sequence set is 1, send out
Send random access response RAR information to the first terminal equipment, so that the first terminal equipment accesses the network equipment；
If in the target leader sequence set, there are the numbers of the corresponding first terminal equipment of the first leader sequence to be greater than 1, then
In the corresponding first terminal equipment of first leader sequence, determine corresponding time advance information in preset time advance
Second terminal equipment in information section sends random access response RAR information to the second terminal equipment, so that described the
Two terminal devices access the network equipment.
4. a kind of accidental access device based on space grouping, which is characterized in that described device is applied to the network equipment, the dress
It sets and includes:
Receiving module, for receiving the random access request of multiple terminal devices transmission, wherein the random access request carries
There is the mark of the terminal device；
First determining module determines in the multiple terminal device respectively for the mark according to the multiple terminal device
Equipment group belonging to each terminal device；
Third determining module, for determining that current time slots have access according to the mode of poll before determining first terminal equipment
The equipment group sequence number of the permission of network side equipment, using the corresponding equipment group of equipment group sequence number as target device group；
Second determining module, for determining the first terminal equipment for belonging to target device group, institute in the multiple terminal device
Stating target device group is the equipment group that current time slots have the permission for accessing the network equipment；
Processing module, for carrying out random access processing to the first terminal equipment；
Statistical module needs to access each terminal device of the network equipment and sets accessing the network for the first time for counting
Time advance information when standby；
Grouping module carries out just each terminal device for the time advance information according to each terminal device
The grouping of beginningization space.
5. device according to claim 4, which is characterized in that the grouping module, comprising:
Sequencing unit, for according to the corresponding time advance information of each terminal device, to each terminal device into
Row sequence, obtains the sequence of terminal device；
Division unit, for the sequence of the terminal device to be divided into N number of equipment group, each equipment in N number of equipment group
The quantity of the included terminal device of group is equal.
6. device according to claim 4, which is characterized in that also carry the terminal in the random access request and set
The leader sequence of alternative, the processing module, comprising:
Determination unit, for the number in the first terminal equipment be it is multiple when, respectively determine target leader sequence set in
The corresponding first terminal equipment of each leader sequence number, the target leader sequence set is by the first terminal equipment
Selected leader sequence composition；
First processing units, for the corresponding first terminal equipment of each leader sequence in the target leader sequence set
Number be 1 in the case where, random access response RAR information is sent to the first terminal equipment, so that described first eventually
End equipment accesses the network equipment；
The second processing unit, in the target leader sequence set, there are the corresponding first terminals of the first leader sequence to set
In the case that standby number is greater than 1, in the corresponding first terminal equipment of first leader sequence, determine that the corresponding time mentions
Second terminal equipment of the preceding information in preset time advance information section sends random access response RAR information to described
Second terminal equipment, so that the second terminal equipment accesses the network equipment.
7. a kind of computer readable storage medium, which is characterized in that be stored with computer in the computer readable storage medium
Program realizes claim 1-3 any method and step when the computer program is executed by processor.
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| CN108366421B (en) * | 2018-02-09 | 2021-10-22 | 京信网络系统股份有限公司 | Equipment access method, terminal device and access point device in wireless communication system |
| CN111698069B (en) * | 2019-11-29 | 2021-06-15 | 中国电信股份有限公司 | Method and equipment for random access based on PLMN |
| CN112994763B (en) * | 2019-12-17 | 2022-04-15 | 中国移动通信集团河南有限公司 | Method and device for optimizing antenna array beam forming parameters |
| CN111510286B (en) * | 2020-03-17 | 2022-12-09 | 哈尔滨工业大学 | Error code negotiation method of quantum key distribution system |
| WO2023065336A1 (en) * | 2021-10-22 | 2023-04-27 | Oppo广东移动通信有限公司 | Wireless communication method, terminal device and network device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102264095A (en) * | 2010-05-26 | 2011-11-30 | 电信科学技术研究院 | Method for determining UE (user experiment) position information and network side device |
| CN104039015A (en) * | 2013-03-05 | 2014-09-10 | 华为技术有限公司 | Distribution method, apparatus and system for random access resources |
| CN104053122A (en) * | 2014-06-25 | 2014-09-17 | 东南大学 | Method for MTC devices to have access to cellular network at random |
| CN105307284A (en) * | 2015-11-30 | 2016-02-03 | 东莞酷派软件技术有限公司 | Random access method and user equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105050178B (en) * | 2010-01-12 | 2019-05-03 | 华为技术有限公司 | A kind of determination method and device of timing advance grouping |
-
2017
- 2017-08-02 CN CN201710651853.5A patent/CN107333337B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102264095A (en) * | 2010-05-26 | 2011-11-30 | 电信科学技术研究院 | Method for determining UE (user experiment) position information and network side device |
| CN104039015A (en) * | 2013-03-05 | 2014-09-10 | 华为技术有限公司 | Distribution method, apparatus and system for random access resources |
| CN104053122A (en) * | 2014-06-25 | 2014-09-17 | 东南大学 | Method for MTC devices to have access to cellular network at random |
| CN105307284A (en) * | 2015-11-30 | 2016-02-03 | 东莞酷派软件技术有限公司 | Random access method and user equipment |
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