CN101562858A - User access method and device thereof - Google Patents
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Abstract
The invention provides a user access method. The method comprises the following steps: A. obtaining position information of an antenna of a user terminal in a cell; and B. judging whether the antenna is located on the border of the cell, and if not, accessing the user terminal to the current cell; otherwise, accessing the user terminal to an cell adjacent to the antenna of the user terminal. The invention further provides a user access device. The method and the device can help effectively determine the cell connected with user terminal access radio resource control, realize user access in high speed environment, eliminate influence on call instructions caused by expansion of cell coverage, and determines cells to hold radio access bearers according to the position information of the antenna and motion direction of the user terminal.
Description
Technical Field
The present invention relates to the field of mobile communications technologies, and in particular, to a user access method and apparatus in a high-speed environment.
Background
With the rapid development of magnetic levitation, high-speed railways and highways, mobile communication in a high-speed environment becomes a crucial problem. In a high-speed environment, because the moving speed of the user is high and the coverage radius of a common antenna cell is limited, the residence time of the user in each cell is very short, and is probably only ten seconds to tens of seconds.
For example, the highest speed is 430 km/h, namely the movement is about 120 m/s, of the magnetic levitation railway in business at Shanghai; according to the results of the external field test, the time for one MOC (Mobile organic Call)/MTC (Mobile Terminal Call) is about 5-6 seconds. In this period of time, the user has moved out of the distance of about 600-800 meters, and is likely to have left the original access cell, and if the user still accesses the original cell at this time, the call will fail; if the situation is the same in each cell along the high-speed environment, the user can not start and end calls all the time in the whole high-speed environment, and the high-speed line becomes a blind area.
The main solution to the above problem is to enlarge the coverage area of the cell and increase the movement time of the user in the cell. In order to increase the coverage area of a cell, methods such as increasing the transmitting power of an antenna, increasing physical equipment such as a repeater station and a remote antenna, adjusting the direction of the antenna and the like can be adopted; the adoption of the distributed remote antenna is a main method adopted at present, and as shown in fig. 1, the distributed remote antenna technology expands the radius of a cell, so that the residence time of the UE in each cell is longer, and the access is easier; however, although this method can expand the coverage of the cell to some extent, there are some other problems: the PCCPCH RSCP (primary common Control physical channel received signal chip power) value cannot be used to determine whether the cell edge is reached, and at the same time, the AOA (Angle of Arrival direction) measurement result cannot reflect the location of the UE, and the like, which may cause RRC (Radio Resource Control) Access failure, RAB (Radio Access Bearer) setup failure, handover failure, and the like, not only increase call loss, but also cause call delay and decrease of Radio Resource utilization. That is, it cannot be determined whether the cell change access and the handover trigger are possible according to the PCCPCH RSCP value, and it cannot be determined whether the cell change access and the handover trigger are possible according to the AOA value.
Disclosure of Invention
In view of this, the present invention provides a user access method and apparatus, which implement user access in a high-speed environment.
In order to solve the above problems, the technical scheme provided by the invention is as follows:
a user access method comprises the following steps:
A. acquiring the position information of an antenna of a user terminal in a cell;
B. judging whether the position of the antenna is in the edge area of the cell, if not, accessing the user terminal in the current cell; otherwise, accessing the user terminal in the cell adjacent to the antenna of the user terminal.
Preferably, the acquiring the location information of the antenna to which the user terminal belongs in the cell specifically includes:
a1, receiving a user access request message carrying antenna channel number information;
and A2, extracting antenna channel number information from the request message, and determining the position information of the antenna in the cell by using the channel number information.
Preferably, the antenna channel number information is located in a bit field occupied by the angle of arrival AOA in the FP frame.
Preferably, the antenna channel number information is located in an idle field in the FP frame.
Preferably, whether the position of the antenna is in the edge area of the cell is judged by the following steps:
if the obtained antenna channel number is the same as the antenna channel number of the edge area in the cell, determining that the antenna is positioned in the edge area of the cell; otherwise, the antenna is determined not to be in the edge area of the cell.
Preferably, when the antenna is in the edge area of the cell, the step B includes:
b1, returning a response of refusing access, and indicating to send the access request again after delaying for a period of time;
b2, when requesting access again, if the cell is changed, accessing the user terminal in the new cell; if the cell is not changed and the antenna channel number is changed, accessing the user terminal in the cell; if neither the cell nor the antenna path number has changed, the process returns to step B1.
Preferably, the step B further comprises:
b3, presetting a threshold, when the number of times of antenna request access identified by the same antenna channel number in the same cell reaches the threshold, accessing the user terminal in the cell.
Preferably, the cell adjacent to the antenna to which the user terminal belongs is a new cell in which the user terminal is located after access is requested again.
Preferably, the method further comprises:
C. acquiring and recording a channel number of an antenna;
D. determining and recording the movement direction of the user terminal according to the channel number of the antenna;
E. if the antenna channel number indicates that the antenna is an antenna adjacent to an adjacent cell in the moving direction, establishing a radio access bearer RAB in the adjacent cell; otherwise, establishing RAB in current cell.
Preferably, the step C includes:
c1, initiating a request for initializing the AOA special period measurement of the arrival angle to the Node B, wherein the request comprises the information of the antenna to which the user terminal belongs;
c2, receiving AOA special measurement report returned by Node B, the report includes the channel number information of the user antenna;
c3, extracting the channel number of the antenna from the report.
Preferably, the antenna channel number occupies the position of the AOA parameter.
Preferably, the step D specifically includes:
determining and recording the movement direction according to the sequence of antenna channel numbers obtained by periodic measurement; and if the antenna channel number and the cell acquired by periodic measurement are the same, recording the moving direction as an invalid value.
Preferably, the step E specifically includes:
e1, judging whether the antenna to which the current user belongs is the antenna of the cell edge area according to the channel number of the antenna, if not, establishing RAB in the cell; if not, then,
e2, if the antenna channel number indicates that the antenna is an antenna which is about to enter a neighboring cell in the moving direction, establishing an RAB in the neighboring cell; otherwise, establishing RAB in current cell.
Preferably, the step E further comprises:
and if the moving direction is an invalid value, establishing RAB in the current cell.
Preferably, the method further comprises: and after the user access is finished, sending a release message to the service cell and all the adjacent cells to indicate the user to release the resources.
A user access apparatus, comprising: a first acquisition unit and a first access unit; wherein,
the first obtaining unit is used for: acquiring the position information of an antenna of a user terminal in a cell and informing the first access unit;
the first access unit is configured to: judging whether the position of the antenna is in the edge area of the cell according to the notification of the first acquisition unit, and accessing the user terminal in the current cell if the position of the antenna is not in the edge area of the cell; otherwise, accessing the user terminal in the cell adjacent to the antenna of the user terminal.
Preferably, the first acquiring unit includes: a first receiving unit and a first extracting unit; wherein,
the first receiving unit is used for: receiving a user access request message carrying antenna channel number information;
the first extraction unit is configured to: and extracting antenna channel number information from the request message received by the first receiving unit, and determining the position information of the antenna in the cell by using the channel number information.
Preferably, the first access unit further comprises: the system comprises a first judgment unit, a first sending unit and an access determination unit; wherein the first judging unit is configured to: judging whether the position of the antenna is in the edge area of the cell, if so, informing the first sending unit;
the first sending unit is configured to: sending response of rejecting user access request to Node B according to the notification of the first judging unit and the first determining unit, and sending access request again after indicating a certain time delay;
the access determination unit is configured to: receiving a user access request sent again by the Node B, and determining to access the user terminal in a new cell if the cell changes at the moment; if the cell is not changed and the antenna channel number is changed, determining to access the user terminal in the cell; and if the cell and the antenna channel number are not changed at the moment, informing the first sending unit.
Preferably, the access determining unit further includes: a presetting unit: the method is used for presetting a threshold value, and accessing the user terminal in the cell when the number of times of antenna request access identified by the same antenna channel number in the same cell reaches the threshold value.
Preferably, the apparatus further comprises: the device comprises a second acquisition unit, a direction determination unit and an establishment unit; wherein the second obtaining unit is configured to: acquiring and recording a channel number of an antenna;
the direction determination unit is configured to: determining and recording the movement direction of the user terminal according to the channel number of the antenna acquired by the second acquisition unit;
the establishing unit is used for: when the antenna channel number indicates that the antenna is an antenna adjacent to an adjacent cell in the moving direction, establishing a radio access bearer RAB in the adjacent cell; otherwise, establishing RAB in current cell.
Preferably, the second acquiring unit includes: the second sending unit, the second receiving unit and the second extracting unit; wherein,
the second sending unit is configured to: initiating a special periodic measurement initialization request of an arrival angle AOA containing antenna information of a user terminal to a Node B;
the second receiving unit is configured to: receiving an AOA special measurement report which is returned by the Node B and contains the information of the antenna channel number of the user;
the second extraction unit is configured to: extracting a channel number of the antenna from the report received by the second receiving unit.
Preferably, the establishing unit includes: a second judgment unit and an establishment determination unit; wherein,
the second judgment unit is configured to: judging whether the antenna to which the current user belongs is the antenna of the cell edge area or not according to the antenna channel number extracted by the second extraction unit, and if not, informing the establishment determination unit to establish RAB in the cell; if not, continuing to judge whether the antenna channel number indicates that the antenna is an antenna which is about to enter an adjacent cell in the moving direction, if so, informing the establishment determination unit to establish RAB in the adjacent cell; otherwise, informing the establishment determination unit to establish RAB in the current cell;
the establishment determination unit is configured to: and establishing RAB in the cell after receiving the notification of the second judgment unit.
Preferably, the apparatus further comprises: and the releasing unit is used for sending a releasing message to the service cell and all the adjacent cells after the user access is finished and indicating the user to release the resources.
It can be seen that, by adopting the method and the device of the invention, the cell of the user terminal accessing the radio resource control connection is determined by acquiring the position information of the antenna of the user terminal in the cell and determining the different positions of the antenna in the cell according to the position information, thereby realizing the user access in the high-speed environment and eliminating the influence on the call index brought by the expanded cell coverage; then, the cell for establishing the wireless access bearer is determined according to the position information of the antenna and the movement direction of the user terminal.
Drawings
Fig. 1 is a schematic diagram of distributed antenna cell coverage in the prior art;
FIG. 2 is a schematic flow chart of the method of example 1 of the present invention;
FIG. 3 is a partial structure diagram of an FP frame in the prior art;
fig. 4 is a schematic diagram of a partial structure of an FP frame carrying antenna channel number information in the method according to embodiment 1 of the present invention;
fig. 5 is another schematic diagram of a partial structure of an FP frame carrying antenna channel number information in the method according to embodiment 1 of the present invention;
fig. 6 is a schematic diagram of a distributed antenna and a cell in the method of embodiment 2 of the present invention;
fig. 7 is a flowchart illustrating a method for determining an access cell in embodiment 2 of the present invention;
fig. 8 is a flow chart of a method including limiting access times in embodiment 2 of the present invention;
fig. 9 is a flowchart illustrating a method for establishing RAB according to embodiment 3 of the present invention;
fig. 10 is a flowchart illustrating a method for obtaining an antenna channel number according to embodiment 3 of the present invention;
fig. 11 is a schematic block diagram of a subscriber access device according to embodiment 4 of the present invention.
Detailed Description
The basic idea of the invention is to obtain the position information of the antenna of the user terminal in the cell, then determine the cell of the user terminal access wireless resource control connection according to the different positions of the antenna in the cell, to realize the user access in the high speed environment; then, according to the position information of the antenna and the movement direction of the user terminal, the cell for establishing the wireless access bearer is determined.
In order that those skilled in the art will better understand the present invention, the method of the present invention will be described in detail below with reference to the accompanying drawings and specific examples.
The method provided by the embodiment of the invention can be applied to the networking condition of the existing high-speed environment such as magnetic suspension, high-speed railway, highway and the like (but is not limited to the networking condition); under the networking condition, each high-speed along-line cell is only configured with two adjacent cells, and the cells are serially networked according to a certain sequence, wherein the attribute of each adjacent cell indicates that the adjacent cell is a forward adjacent cell or a backward adjacent cell; meanwhile, under the networking requirement, the Node B (base station) adopts distributed antennas, each antenna has a channel number, and the antennas are sequentially arranged along a high-speed line from small to large or from large to small according to the channel numbers.
Based on the networking situation, as shown in fig. 2, embodiment 1 of the present invention provides a user access method, including:
step 201: acquiring the position information of an antenna of a user terminal in a cell;
it should be noted that, the embodiment of the present invention proposes to obtain channel number information from a Frame Protocol (FP) Frame carrying an RRC Connection Request message, so as to determine a location of an antenna in a cell, but is not limited to this, and the location information of the antenna in the cell may also be obtained by other manners in the prior art, and is not described herein again;
under the condition of adopting distributed antennas, each antenna has a coverage range, and the coverage range of the antenna in which the UE is positioned can be easily judged according to the signal intensity of the user terminal received by each antenna, namely the specific information of the antenna to which the user terminal belongs can be easily determined; however, in the prior art, there is no standard message that can notify the RNC of the channel number of the antenna (hereinafter, referred to as a main control antenna) covering the UE, that is, the antenna channel number information cannot be obtained; therefore, in this embodiment, corresponding information is added to an FP frame of an RACH (Random Access Channel) Channel, and a main control antenna Channel number when the UE accesses from the RACH is brought to the RNC, that is, antenna Channel number information is obtained through the FP frame; two ways can also be used here:
(1) the first mode proposed by the embodiment of the present invention is to obtain the antenna channel number information by using the bits of the AOA in the FP frame, because the distributed antenna is adopted, but the distributed antenna cannot measure the AOA (angle of arrival); fig. 3 shows a part of a frame structure of a FP frame in the prior art, where the AOA value of the AOA parameter area (i.e. AOA and AOA (cont) fields in the figure) in the frame structure part schematic diagram must be an invalid value, so that the present embodiment fills in antenna channel number information at the AOA parameter bit position, as shown in fig. 4, and the network side acquires the channel number information of the antenna from the FP frame carrying the antenna channel number information; the value of the antenna channel number can be 0-17 (usually 6), so that only 5 bits are occupied, and the AOA parameter area in the original FP frame occupies 10 bits (0-1024 values can be stored), so that reporting (network side acquires) the antenna channel number information is completely feasible; in addition, the specific FP frame reporting scheme can be implemented by other methods in the prior art, and is not described herein again;
(2) as shown in fig. 5, the AOA and AOA (cont) fields in the existing standard protocol frame structure are kept unchanged, but antenna channel number information is filled in the idle fields (including the Sapre Bits and Spare Extension fields), and the antenna channel number information may also be taken as 0 to 17 (or other values, of course) in the above manner, that is, only 5 Bits need to be occupied, and the idle fields are 14 Bits (Sapre Bits are 6 Bits and Spare Extension is 8 Bits), so that it is completely feasible to report (acquire) the antenna channel number information by using 5 Bits (the remaining Bits are Sapre Bits and/or Spare Extension fields) in the idle fields;
the position of the antenna in the cell can be easily determined by the acquired channel number of the antenna and the characteristics of the distributed antenna.
Step 202: judging whether the position of the antenna is in the edge area of the cell, if not, accessing the user terminal in the current cell; otherwise, accessing the user terminal in a cell adjacent to the antenna to which the user terminal belongs;
the cell is a reporting cell of an RRC Connection Request message, and the position information of the antenna in the cell can be determined according to the antenna channel number information; if the antenna is located in the non-edge area of the cell, the user radio resource control connection is directly accessed in the cell; if the antenna is positioned in the non-edge area of the cell, returning an access refusing response, and indicating to request access again after delaying for a period of time; when access is requested again, if the cell identification changes, the user terminal is indicated to move into a new cell range, and the cell corresponding to the new cell identification is accessed to the user radio resource control connection; if the cell identification is not changed and the antenna channel number is changed, indicating that the current antenna is not in the edge area of the cell, accessing the user radio resource control connection in the cell; the following is illustrated by example 2:
a cell formed by distributed antennas can be divided into a plurality of small areas according to the channel number of the antennas, and the small areas are called single antenna areas; the single antenna areas on both sides of the cell may be referred to as edge areas; as shown in fig. 6, the 0 single antenna area and the 17 single antenna area of Cell 2(Cell2) are edge areas, and the 17 single antenna area of Cell1 and the 0 single antenna area of Cell 3 are also edge cells; a specific method for determining an access cell is shown in fig. 7, and includes the following steps:
step 701: receiving an RRC Connection Request message, determining whether a channel number carried therein is equal to an antenna channel number (channels 0 and 17) of a cell edge area, if so, performing step 703; otherwise, go to step 702:
step 702: directly accessing RRC in the cell and establishing the RRC in a DCH state;
step 703: refusing to access to the radio resource control connection, and recording Cell ID (Cell identification) and the antenna channel number; then returning an RRC Connection Reject message, wherein the message carries a parameter Wait time (delay time), the parameter indicates a pre-configured time value, and indicates the user terminal to reinitiate an RRC establishment process after the pre-configured time;
step 704: after the Wait Time is overtime, receiving an RRC connection request message initiated by the user terminal again, wherein the message also carries a Cell ID and an antenna channel number; comparing the received Cell ID and antenna channel number with the originally recorded Cell ID and channel number;
step 705: if the Cell IDs are different, directly accessing the RRC in a new Cell, and establishing the RRC in a DCH state; at this point, only Cell IDs need to be compared, and no channel numbers need to be compared, since channel numbers are only valid within one Cell range, since the Cell has changed, there is no need to compare channel numbers: specifically, if the Cell IDs are different, it is sufficient to indicate the movement direction of the UE (i.e., the UE moves forward or backward), that is, the new Cell ID indicates that the UE moves into the new Cell of the request, so that the RRC is directly accessed in the new Cell without additionally determining the channel number;
step 706: if the Cell IDs are the same but the channel numbers are different, then the RRC is directly accessed in the original Cell and is established in a DCH state;
specifically, if the Cell IDs are the same, it indicates that the UE is still in the original Cell, and the original antenna channel number indicates that the antenna is in the edge area of the Cell, and if the channel number is different from the original channel number, it indicates that the antenna is not in the edge area of the Cell, and at this time, the RRC may be directly accessed in the Cell;
step 707: if the Cell ID and the channel number are the same, returning to execute the step 703;
in addition, the present embodiment proposes that, in the above-mentioned flow, a step of limiting the number of accesses may be further added, as shown in fig. 8, specifically as follows:
step 708: a threshold value nsinglearemaxacc is preset, the threshold value indicates the maximum number of times of accessing the same single antenna region, when the number of times of trying to access the same Cell ID and channel number reaches nsinglearemaxacc, the step 703 is not executed again, and the RRC can be directly accessed in the Cell, so that the problem that a stationary or low-speed moving object cannot start calling can be prevented.
It is worth noting that the user access method provided by the above embodiment of the present invention can ensure that the user terminal can normally access the RRC in a high speed environment; when a user needs to initiate a call or other similar services, an RAB (Radio Access Bearer) needs to be established on the basis of the method of the above embodiment; for this reason, based on the idea of the foregoing embodiment method, as shown in fig. 9, embodiment 3 of the present invention further proposes that the method of the foregoing embodiment may further include the following steps:
step 801: acquiring and recording a channel number of an antenna;
initiating special measurement of a channel number (AOA) after RRC establishment is finished in order to acquire corresponding judgment parameters in the RAB establishment process; currently, in the prior art, there is no measurement report dedicated to a channel number, and since a distributed antenna does not measure AOA, this embodiment proposes to obtain an antenna channel number by combining AOA-dedicated periodic measurement, that is, to measure a channel number of an antenna area of a report list by using AOA (certainly, the channel number of an antenna may also be obtained by other methods, which is not limited to this, and is not described again), and the specific process is shown in fig. 10;
1) sending a dedicate Measurement Initiation Request (special Measurement Initiation) Request message to a Node B, wherein the Request message comprises information of an antenna to which a user terminal belongs;
2) after receiving the response message, the Node B returns a successful response message, wherein the report comprises the channel number information of the antenna to which the user belongs;
3) node B starts measurement according to the requirement of the measurement initialization message, and reports Dedicated measurement Report to RNC;
it should be noted that: because the distributed antenna cannot measure AOA, but this embodiment is proposed for distributed antenna networking, the reporting of the channel number is performed by using a reporting mode of periodic measurement of AOA, that is: indicating Node B to measure AOA in the measurement initialization message, wherein actually, the antenna channel number needs to be obtained, and Node B in the distributed antenna network can not measure AOA, therefore, Node B can be understood as indicating the measurement channel number after receiving the indication; in the measurement report reported after the measurement is finished, Node B fills the measurement result of the channel number in the position of the AOA measurement result; the channel number ranges from 0 to 17, and the AOA ranges from 0 to 719, so that the filling of the channel number measurement result in the AOA parameter position does not change the structure of the original measurement report, and the implementation is easy;
step 802: determining and recording the movement direction of the user terminal according to the channel number of the antenna;
specifically, the moving direction is obtained according to different results of the antenna channel numbers measured periodically: if the channel numbers or Cell IDs obtained in the above steps are different, the movement direction can be judged according to the sequence of the different Cell IDs or channel numbers, and then the movement direction is recorded; for example, as shown in fig. 1, if the direction of motion is forward from Cell1 to Cell2, if the direction of motion is backward from 14 single antenna areas of Cell2 to 10 single antenna areas of Cell2, and so on; if the motion direction can not be judged, recording the motion direction as an invalid value: for example, if the channel number has not changed, the moving direction of the user terminal cannot be determined according to the channel number, and at this time, the moving direction is recorded as an invalid value;
step 803: if the antenna channel number indicates that the antenna is an adjacent antenna in the adjacent cell in the moving direction, establishing RAB in the adjacent cell; otherwise, establishing RAB in the local cell;
the antennas adjacent to the neighboring cell in the moving direction are located in an edge area of the cell, and the antennas in the edge area of the cell further include an antenna that is accessing the cell, and meanwhile, the present embodiment determines whether the antenna is located in the edge area by using an antenna channel number, so that the present embodiment performs two-step determination:
1) and if the current antenna channel number is the edge channel number, judging the specific position of the antenna according to the movement direction of the user terminal: if the antenna channel number indicates that the antenna is an antenna which is about to enter a certain adjacent cell in the moving direction, the antenna is an antenna adjacent to the adjacent cell in the moving direction, so that the RAB access activation time is set to be a larger value, the cell access is changed, namely RAB is established in the adjacent cell; if the antenna channel number indicates that the antenna is the antenna entering the cell in the moving direction, directly establishing RAB in the cell; in addition, after the RAB process is finished, if the subsequent process does not need channel number information measurement any more, the periodic channel number (AOA) measurement is terminated;
2) if the current antenna channel number is not the edge channel number, the RAB can be directly established in the cell; similarly, after the RAB process is finished, if the AOA measurement is not needed in the subsequent process any more, the periodic AOA measurement is terminated;
wherein, the embodiment also considers the situation that the moving direction of the user terminal cannot be determined in the above steps; therefore, when the moving direction cannot be determined (the moving direction is not obtained), it cannot be determined in which cell the RAB should be accessed, and the RAB can be directly established in the cell;
in addition, it should be noted that, on the basis of any of the above embodiments, the method may further include the step of RRC release:
after the RRC access is completed, according to the neighbor cell list of the cell where the UE is currently located, an RRC Release (radio resource control Release) message is sent to the serving cell and all neighbor cells, where the serving cell sends a Release command on a dedicated channel and the neighbor cells send Release commands on a common channel, so as to ensure that the user can receive the RRC Release message and Release resources.
It can be seen that, the method of the present invention is adopted to easily determine the cell of the user terminal accessing the radio resource control connection, realize the user access in the high speed environment, and simultaneously eliminate the influence on the call index brought by the expanding area coverage; moreover, the method is realized according to the existing protocol, and the protocol does not need to be modified.
It will be understood by those skilled in the art that all or part of the steps in the method for implementing the above embodiments may be implemented by hardware associated with program instructions, and the program is stored in a specific storage medium.
Based on the above idea, embodiment 4 of the present invention further provides a user access apparatus, as shown in fig. 11, including: a first acquisition unit 1101 and a first access unit 1102; wherein,
the first obtaining unit 1101 is configured to: acquiring the location information of the antenna of the ue in the cell and notifying the first access unit 1102;
the first access unit 1102 is configured to: judging whether the position of the antenna is in the edge area of the cell according to the notification of the first obtaining unit 1101, and if not, accessing the user terminal in the current cell; otherwise, accessing the user terminal in the cell adjacent to the antenna of the user terminal.
Further, the first acquisition unit includes: a first receiving unit and a first extracting unit; wherein the first receiving unit is configured to: receiving a user access request message carrying antenna channel number information; the first extraction unit is configured to: and extracting antenna channel number information from the request message received by the first receiving unit, and determining the position information of the antenna in the cell by using the channel number information.
Furthermore, the first access unit further comprises: the system comprises a first judgment unit, a first sending unit and an access determination unit; wherein the first judging unit is configured to: judging whether the position of the antenna is in the edge area of the cell, if so, informing the first sending unit; the first sending unit is configured to: sending response of rejecting user access request to Node B according to the notification of the first judging unit and the first determining unit, and sending access request again after indicating a certain time delay; the access determination unit is configured to: receiving a user access request sent again by the Node B, and determining to access the user terminal in a new cell if the cell changes at the moment; if the cell is not changed and the antenna channel number is changed, determining to access the user terminal in the cell; and if the cell and the antenna channel number are not changed at the moment, informing the first sending unit.
Furthermore, the access determination unit further includes: a presetting unit: the method is used for presetting a threshold value, and accessing the user terminal in the cell when the number of times of antenna request access identified by the same antenna channel number in the same cell reaches the threshold value.
It should be noted that the apparatus may further comprise: the device comprises a second acquisition unit, a direction determination unit and an establishment unit; wherein the second obtaining unit is configured to: acquiring and recording a channel number of an antenna;
the direction determination unit is configured to: determining and recording the movement direction of the user terminal according to the channel number of the antenna acquired by the second acquisition unit; the establishing unit is used for: when the antenna channel number indicates that the antenna is an antenna adjacent to an adjacent cell in the moving direction, establishing a radio access bearer RAB in the adjacent cell; otherwise, establishing RAB in current cell.
Wherein the second acquisition unit includes: the second sending unit, the second receiving unit and the second extracting unit; wherein the second sending unit is configured to: initiating a special periodic measurement initialization request of an angle of arrival (AOA) to a Node B, wherein the request comprises information of an antenna to which a user terminal belongs; the second receiving unit is configured to: receiving an AOA special measurement report which is returned by the Node B and contains the information of the antenna channel number of the user; the second extraction unit is configured to: extracting a channel number of the antenna from the report received by the second receiving unit.
In addition, the establishing unit includes: a second judgment unit and an establishment determination unit; wherein the second determination unit is configured to: judging whether the antenna to which the current user belongs is the antenna of the cell edge area or not according to the antenna channel number extracted by the second extraction unit, and if not, informing the establishment determination unit to establish RAB in the cell; if not, continuing to judge whether the antenna channel number indicates that the antenna is an antenna which is about to enter an adjacent cell in the moving direction, if so, informing the establishment determination unit to establish RAB in the adjacent cell; otherwise, informing the establishment determination unit to establish RAB in the current cell; the establishment determination unit is configured to: and establishing RAB in the cell after receiving the notification of the second judgment unit.
In addition, the apparatus further comprises: and the releasing unit is used for sending a releasing message to the service cell and all the adjacent cells after the user access is finished and indicating the user to release the resources.
Those of skill in the art would understand that information, messages, and signals may be represented using any of a variety of different technologies and techniques. For example, the messages and information mentioned in the above description can be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or any combination thereof.
Those of skill would further appreciate that the various illustrative components and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (23)
1. A user access method, comprising:
A. acquiring the position information of an antenna of a user terminal in a cell;
B. judging whether the position of the antenna is in the edge area of the cell, if not, accessing the user terminal in the current cell; otherwise, accessing the user terminal in the cell adjacent to the antenna of the user terminal.
2. The method according to claim 1, wherein the obtaining the location information of the antenna to which the ue belongs in the cell specifically includes:
a1, receiving a user access request message carrying antenna channel number information;
and A2, extracting antenna channel number information from the request message, and determining the position information of the antenna in the cell by using the channel number information.
3. The method of claim 2, wherein:
and the antenna channel number information is located in a bit field occupied by the angle of arrival AOA in the FP frame.
4. The method of claim 2, wherein:
the antenna channel number information is located in an idle field in the FP frame.
5. The method of claim 2, wherein the determining whether the position of the antenna is in the edge area of the cell is performed by:
if the obtained antenna channel number is the same as the antenna channel number of the edge area in the cell, determining that the antenna is positioned in the edge area of the cell; otherwise, the antenna is determined not to be in the edge area of the cell.
6. The method of claim 5, wherein the step B comprises, when the antenna is in an edge region of the cell:
b1, returning a response of refusing access, and indicating to send the access request again after delaying for a period of time;
b2, when requesting access again, if the cell is changed, accessing the user terminal in the new cell; if the cell is not changed and the antenna channel number is changed, accessing the user terminal in the cell; if neither the cell nor the antenna path number has changed, the process returns to step B1.
7. The method of claim 6, wherein step B further comprises:
b3, presetting a threshold, when the number of times of antenna request access identified by the same antenna channel number in the same cell reaches the threshold, accessing the user terminal in the cell.
8. The method of claim 1, wherein:
and the cell adjacent to the antenna to which the user terminal belongs is a new cell in which the user terminal is located after access is requested again.
9. The method of claim 1, further comprising:
C. acquiring and recording a channel number of an antenna;
D. determining and recording the movement direction of the user terminal according to the channel number of the antenna;
E. if the antenna channel number indicates that the antenna is an antenna adjacent to an adjacent cell in the moving direction, establishing a radio access bearer RAB in the adjacent cell; otherwise, establishing RAB in current cell.
10. The method of claim 9, wherein step C comprises:
c1, initiating a request for initializing the AOA special period measurement of the arrival angle to the Node B, wherein the request comprises the information of the antenna to which the user terminal belongs;
c2, receiving AOA special measurement report returned by Node B, the report includes the channel number information of the user antenna;
c3, extracting the channel number of the antenna from the report.
11. The method of claim 10, wherein:
the antenna channel number occupies the position of the AOA parameter.
12. The method according to claim 9, wherein step D specifically comprises:
determining and recording the movement direction according to the sequence of antenna channel numbers obtained by periodic measurement; and if the antenna channel number and the cell acquired by periodic measurement are the same, recording the moving direction as an invalid value.
13. The method according to claim 12, wherein step E specifically comprises:
e1, judging whether the antenna to which the current user belongs is the antenna of the cell edge area according to the channel number of the antenna, if not, establishing RAB in the cell; if not, then,
e2, if the antenna channel number indicates that the antenna is an antenna which is about to enter a neighboring cell in the moving direction, establishing an RAB in the neighboring cell; otherwise, establishing RAB in current cell.
14. The method of claim 13, wherein step E further comprises:
and if the moving direction is an invalid value, establishing RAB in the current cell.
15. The method of any one of claims 1 to 14, further comprising:
and after the user access is finished, sending a release message to the service cell and all the adjacent cells to indicate the user to release the resources.
16. A subscriber access device, comprising: a first acquisition unit and a first access unit; wherein,
the first obtaining unit is used for: acquiring the position information of an antenna of a user terminal in a cell and informing the first access unit;
the first access unit is configured to: judging whether the position of the antenna is in the edge area of the cell according to the notification of the first acquisition unit, and accessing the user terminal in the current cell if the position of the antenna is not in the edge area of the cell; otherwise, accessing the user terminal in the cell adjacent to the antenna of the user terminal.
17. The apparatus of claim 16, wherein the first obtaining unit comprises: a first receiving unit and a first extracting unit; wherein,
the first receiving unit is used for: receiving a user access request message carrying antenna channel number information;
the first extraction unit is configured to: and extracting antenna channel number information from the request message received by the first receiving unit, and determining the position information of the antenna in the cell by using the channel number information.
18. The apparatus of claim 17, wherein the first access unit further comprises: the system comprises a first judgment unit, a first sending unit and an access determination unit; wherein,
the first judging unit is used for: judging whether the position of the antenna is in the edge area of the cell, if so, informing the first sending unit;
the first sending unit is configured to: sending response of rejecting user access request to Node B according to the notification of the first judging unit and the first determining unit, and sending access request again after indicating a certain time delay;
the access determination unit is configured to: receiving a user access request sent again by the Node B, and determining to access the user terminal in a new cell if the cell changes at the moment; if the cell is not changed and the antenna channel number is changed, determining to access the user terminal in the cell; and if the cell and the antenna channel number are not changed at the moment, informing the first sending unit.
19. The apparatus of claim 18, wherein the access determination unit further comprises: a presetting unit: the method is used for presetting a threshold value, and accessing the user terminal in the cell when the number of times of antenna request access identified by the same antenna channel number in the same cell reaches the threshold value.
20. The apparatus of claim 16, further comprising: the device comprises a second acquisition unit, a direction determination unit and an establishment unit; wherein,
the second obtaining unit is configured to: acquiring and recording a channel number of an antenna;
the direction determination unit is configured to: determining and recording the movement direction of the user terminal according to the channel number of the antenna acquired by the second acquisition unit;
the establishing unit is used for: when the antenna channel number indicates that the antenna is an antenna adjacent to an adjacent cell in the moving direction, establishing a radio access bearer RAB in the adjacent cell; otherwise, establishing RAB in current cell.
21. The apparatus of claim 20, wherein the second obtaining unit comprises: the second sending unit, the second receiving unit and the second extracting unit; wherein,
the second sending unit is configured to: initiating a special periodic measurement initialization request of an arrival angle AOA containing antenna information of a user terminal to a Node B;
the second receiving unit is configured to: receiving an AOA special measurement report which is returned by the Node B and contains the information of the antenna channel number of the user;
the second extraction unit is configured to: extracting a channel number of the antenna from the report received by the second receiving unit.
22. The apparatus of claim 21, wherein the establishing unit comprises: a second judgment unit and an establishment determination unit; wherein,
the second judgment unit is configured to: judging whether the antenna to which the current user belongs is the antenna of the cell edge area or not according to the antenna channel number extracted by the second extraction unit, and if not, informing the establishment determination unit to establish RAB in the cell; if not, continuing to judge whether the antenna channel number indicates that the antenna is an antenna which is about to enter an adjacent cell in the moving direction, if so, informing the establishment determination unit to establish RAB in the adjacent cell; otherwise, informing the establishment determination unit to establish RAB in the current cell;
the establishment determination unit is configured to: and establishing RAB in the cell after receiving the notification of the second judgment unit.
23. The apparatus of any one of claims 16 to 22, further comprising:
and the releasing unit is used for sending a releasing message to the service cell and all the adjacent cells after the user access is finished and indicating the user to release the resources.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101044641A CN101562858B (en) | 2008-04-18 | 2008-04-18 | User access method and device thereof |
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| CN2008101044641A CN101562858B (en) | 2008-04-18 | 2008-04-18 | User access method and device thereof |
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| CN101562858A true CN101562858A (en) | 2009-10-21 |
| CN101562858B CN101562858B (en) | 2011-04-13 |
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| CN2008101044641A Active CN101562858B (en) | 2008-04-18 | 2008-04-18 | User access method and device thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2012130079A1 (en) * | 2011-04-01 | 2012-10-04 | 华为技术有限公司 | Cell access method and node device |
| CN103167583A (en) * | 2011-12-16 | 2013-06-19 | 鼎桥通信技术有限公司 | User accessing method and radio network controller |
| CN103313424A (en) * | 2012-03-07 | 2013-09-18 | 电信科学技术研究院 | Method and equipment for UE access control |
| CN107852668A (en) * | 2015-08-14 | 2018-03-27 | 华为技术有限公司 | Access the method, apparatus and equipment of multiaerial system |
| CN108476431A (en) * | 2016-01-11 | 2018-08-31 | 索尼移动通讯有限公司 | The selectivity of connection request is refused |
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| CN1315339C (en) * | 2003-09-19 | 2007-05-09 | 华为技术有限公司 | Plot switchover decision method in linear covering network |
| EP1562332A1 (en) * | 2004-02-06 | 2005-08-10 | Siemens Mobile Communications S.p.A. | Mapping adhoc MAC protocol layer onto existing formats of the slotted channel |
| CN1852568B (en) * | 2005-08-29 | 2010-05-05 | 华为技术有限公司 | Small-zone switching-over method |
| CN100471322C (en) * | 2006-05-01 | 2009-03-18 | 华为技术有限公司 | Method for switching residence in linear covering network |
| CN100588129C (en) * | 2007-06-07 | 2010-02-03 | 上海交通大学 | Single frequency network signal line style coverage method for rail traffic |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2012130079A1 (en) * | 2011-04-01 | 2012-10-04 | 华为技术有限公司 | Cell access method and node device |
| CN102740398A (en) * | 2011-04-01 | 2012-10-17 | 华为技术有限公司 | Method and node device for cell access |
| CN102740398B (en) * | 2011-04-01 | 2016-03-30 | 华为技术有限公司 | Cell accessing method and node device |
| CN103167583A (en) * | 2011-12-16 | 2013-06-19 | 鼎桥通信技术有限公司 | User accessing method and radio network controller |
| CN103167583B (en) * | 2011-12-16 | 2015-09-16 | 鼎桥通信技术有限公司 | User access method and radio network controller |
| CN103313424A (en) * | 2012-03-07 | 2013-09-18 | 电信科学技术研究院 | Method and equipment for UE access control |
| CN103313424B (en) * | 2012-03-07 | 2016-03-23 | 电信科学技术研究院 | The connection control method of a kind of UE and equipment |
| CN107852668A (en) * | 2015-08-14 | 2018-03-27 | 华为技术有限公司 | Access the method, apparatus and equipment of multiaerial system |
| CN107852668B (en) * | 2015-08-14 | 2020-10-09 | 诸暨市尚诺五金经营部 | Method, device and equipment for accessing multi-antenna system |
| CN108476431A (en) * | 2016-01-11 | 2018-08-31 | 索尼移动通讯有限公司 | The selectivity of connection request is refused |
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| CN101562858B (en) | 2011-04-13 |
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