CN102223727A - Method and system for realizing initial access of user equipment - Google Patents
Method and system for realizing initial access of user equipment Download PDFInfo
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- CN102223727A CN102223727A CN2011101754712A CN201110175471A CN102223727A CN 102223727 A CN102223727 A CN 102223727A CN 2011101754712 A CN2011101754712 A CN 2011101754712A CN 201110175471 A CN201110175471 A CN 201110175471A CN 102223727 A CN102223727 A CN 102223727A
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Abstract
The invention provides a method and a system for realizing initial access of user equipment. The method comprises the following steps: storing a first connection establishment request message and first cell identifier information transmitted by the user equipment and transmitting the first connection establishment request message to the user equipment after distributing system resources for the user equipment; judging whether the user equipment is positioned at the same cell when receiving a second connection establishment request message and second cell identifier information transmitted by the user equipment, if so, retransmitting the first connection establishment request message, and if not, redistributing the system resources for the user equipment and transmitting the second connection establishment request message; and receiving a connection establishment finished message returned by the user equipment according to the connection establishment of the first connection establishment request message or the second connection establishment request message. By adopting the embodiment of the invention, when the user equipment is not positioned in the same cell, a connection establishment message transmitted by the system can be still received, so as to carry out the initial access process and improve the success rate of the initial access.
Description
Technical field
The present invention relates to the mobile communication technology field, relate to a kind of initial method and system that inserts of subscriber equipment of realizing in particular.
Background technology
In the mobile communication system, the existing corresponding techniques regulation of the initial access process of UE (User Equipment, subscriber equipment), along with the continuous development of 3G (Third Generation) Moblie technology, the initial access method of UE is also in constantly developing.
At UMT S (Universal Mobile Telecommunications System, universal mobile telecommunications system) in the system, in the existing realization UE initial access method, normally UE uses PRACH (Physical Random Access Channel on cell main carrier, Physical Random Access Channel) sends RRC (Radio Resource Control, Radio Resource control) connection request message, after network side is received this RRC connection request message, send the RRC connection and set up message, UE is at SCCPCH (Secondary Common Control Physical Channel, auxilliary public physic channel) goes up this RRC connection of reception and set up message, finish the foundation operation according to message content, and, promptly having finished initial access process to network side transmission RRC connection setup complete message, UE can carry out transmission of Information in this sub-district.
But the initial access method of existing this realization UE, network side receives UE transmission RRC connection and sets up request message, set up message during this period of time to successfully sending the RRC connection, network side need be set up message to the RRC connection and handle, distribution network side resource, interface-free resources, set up sequence of operations such as dedicated channel, this needs long period of time, if being positioned at sub-district A and having sent the RRC connection, UE sets up request message, receive this request and processing during this period of time at network side, UE may enter sub-district B, message is set up in the complete RRC connection that causes UE may not receive networking side transmission, UE can resend the RRC connection and set up request message at this moment, but network side still sends the RRC connection to sub-district A according to user ID and sets up message, UE can't receive still that this RRC connects and set up message, and UE still can continue to send to connect and sets up request message, is released to the sub-district A access-in resource that UE distributes until network side.Therefore existing this method makes that the initial success rate that inserts is very low.
Summary of the invention
In view of this, the invention provides a kind of initial method and system that inserts of subscriber equipment of realizing, solved subscriber equipment and initially inserted the low problem of success rate.
For achieving the above object, the invention provides following technical scheme:
A kind of initial method that inserts of subscriber equipment that realizes, described method comprises:
Preserve first connection of subscriber equipment transmission and set up the request message and first cell identity information, and after being user equipment allocation system resource, sending first connection to subscriber equipment and set up message;
After the request message and second cell identity information are set up in second connection that receives the subscriber equipment transmission, judge according to described first cell identity information and second cell identity information whether subscriber equipment is positioned at same sub-district, if, then resend described first connection and set up message, if not, then redistribute system resource and send second and connect and to set up message for subscriber equipment;
The reception subscriber equipment sets up message according to described first connection or the connection setup complete message that returns after message connects is set up in second connection.
Preferably, described when subscriber equipment is positioned at same sub-district, resend described first and connect and to set up message and comprise:
Judge the movement position relation of subscriber equipment and described sub-district;
Determine that described subscriber equipment is positioned at described cell edge and enters described sub-district, or when described cell edge is done tangential motion, resend first connection and set up message;
When determining that described subscriber equipment is positioned at described cell edge and leaves described sub-district, finish this initial access process.
Preferably, deflection information and the received signal code power that request message comprises that subscriber equipment carries set up in described connection, determines that then described subscriber equipment is positioned at cell edge and enters described sub-district, or does tangential motion in described sub-district and comprise:
When the difference of twice deflection less than first preset value, twice received signal code power successively decreases and difference during greater than second preset value, determines that then subscriber equipment is positioned at cell edge and enters described sub-district;
When the difference of twice deflection greater than the 3rd preset value, and the difference of twice received signal code power is less than the 4th preset value, determines that then subscriber equipment does tangential motion at this cell edge.
Preferably, described definite described subscriber equipment is positioned at cell edge and comprises away from described sub-district:
When the difference of twice deflection less than the 5th preset value, twice received signal code power increases progressively and difference during greater than the 6th preset value, determines that then subscriber equipment is positioned at cell edge and leaves described sub-district.
Preferably, described connection is set up request message and is also comprised user totem information, and described method also comprises:
Determine according to described user totem information whether request message is set up in the connection of described subscriber equipment transmission is that request message is set up in second connection.
A kind of initial system that inserts of subscriber equipment that realizes is characterized in that described system comprises:
First receiving element is used to receive that subscriber equipment sends first connects and set up request message and first cell identity information or second and connect and set up the request message and second cell identity information;
Preserve the unit, be used to preserve the information that described first receiving element receives;
First judging unit is used for judging according to described first cell identity information and second cell identity information whether subscriber equipment is positioned at same sub-district;
Allocation units are used for connecting and being user equipment allocation system resource after setting up request message receiving first, maybe connect to set up and are user equipment allocation system resource when request message and subscriber equipment are positioned at different districts again when receiving second;
Transmitting element is used for sending after for user equipment allocation system resource first and connects and set up message and maybe send second connection set up message when redistributing system resource for subscriber equipment after;
Second receiving element is used to receive subscriber equipment and connects according to first and set up message or second and connect and set up the connection setup complete message that returns after message connects.
Preferably, described system also comprises:
Second judging unit, be used for when the first judging unit result when being, judge that the subscriber equipment and the movement position of described sub-district concern;
End unit is used for determining that described subscriber equipment is positioned at cell edge and during away from described sub-district, finishing this initial access process when described second judging unit;
Then, described transmitting element specifically is used for determining that when described second judging unit described subscriber equipment is positioned at described cell edge and enters described sub-district, or when doing tangential motion in described sub-district, send first connection and set up message, or when the described first judging unit result for not the time, send second and connect and sets up message.
Preferably, deflection information and the received signal code power that request message comprises that subscriber equipment carries set up in described connection, then,
Described second judging unit specifically is used to judge the variation size of deflection information and received signal code power, when the difference of twice deflection less than first preset value, twice received signal code power successively decreases and difference during greater than second preset value, determines that then subscriber equipment is positioned at cell edge and enters described sub-district; When the difference of twice deflection greater than the 3rd preset value, and the difference of twice received signal code power is less than the 4th preset value, determines that then subscriber equipment does tangential motion at this cell edge; When the difference of twice deflection less than the 5th preset value, twice received signal code power increases progressively and difference during greater than the 6th preset value, determines that then subscriber equipment is positioned at cell edge and leaves described sub-district.
Via above-mentioned technical scheme as can be known, compared with prior art, the invention provides a kind of initial method and system that inserts of subscriber equipment of realizing, subscriber equipment sends and connects when setting up request message, the cell identity information at place when system can preserve subscriber equipment and sends this connection and set up request message, when request message is set up in the connection that receives this subscriber equipment once more, whether the cell identity information of judging twice is consistent, judge promptly whether subscriber equipment is positioned at same sub-district, if be positioned at same sub-district, then system can think that subscriber equipment is interfered not receive to connect and sets up message, can resend first connection and set up message, if not being positioned at same sub-district, then system can be this user equipment allocation resource again, therefore can send second connection to the sub-district at its current place and set up message, therefore when subscriber equipment during not in same sub-district, message is set up in the connection that the system that still can receive sends, thereby can finish the process of initial access, has improved the success rate of initial access.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiments of the invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to the accompanying drawing that provides.
Fig. 1 realizes the flow chart of the initial method embodiment 1 that inserts of subscriber equipment for the present invention is a kind of;
Fig. 2 realizes the flow chart of the initial method embodiment 2 that inserts of subscriber equipment for the present invention is a kind of;
Fig. 3 realizes the structural representation of the initial system embodiment 1 that inserts of subscriber equipment for the present invention is a kind of;
Fig. 4 realizes the structural representation of the initial system embodiment 2 that inserts of subscriber equipment for the present invention is a kind of.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
The embodiment of the invention discloses a kind of initial method and system that inserts of subscriber equipment of realizing, subscriber equipment sends and connects when setting up request message, system can preserve the cell identity information at subscriber equipment place, when request message is set up in the connection that receives this subscriber equipment once more, whether the cell identity information of judging twice is consistent, judge promptly whether subscriber equipment is positioned at same sub-district, if be positioned at same sub-district, then system can think that subscriber equipment is interfered not receive to connect and sets up message, can resend first connection and set up message, if not being positioned at same sub-district, then system can be this user equipment allocation resource again, therefore can send second connection to the sub-district at its current place and set up message, by the embodiment of the invention, when subscriber equipment during not in same sub-district, message is set up in the connection that the system that still can receive sends, thereby can finish the process of initial access, improve the success rate of initial access.
Referring to Fig. 1, show a kind of flow chart of realizing the initial method embodiment 1 that inserts of subscriber equipment of the present invention, can may further comprise the steps:
Step 101: the request message and first cell identity information are set up in first connection of preserving the subscriber equipment transmission, and after being user equipment allocation system resource, sending first connection to subscriber equipment and set up message.
Subscriber equipment is in the sub-district, sub-district A for example, send first connection and set up request message, the cell identity information that request message carries sub-district A is set up in described first connection, the identification information of sub-district A is to know according to the carrier frequency information of sub-district A, network side is kept in the cell identity information that request message and sub-district, described subscriber equipment place are set up in first connection after receiving this message, be system resources such as user equipment allocation network side resource, interface-free resources, send first connection to subscriber equipment then and set up message.
What wherein, subscriber equipment sent first connects and sets up request message and also comprised deflection information and receiving code signal power.Deflection information measures in physical layer by Node B, and the receiving code signal power is that subscriber equipment carries in signaling message.
Step 102: after the request message and second cell identity information are set up in second connection that receives the subscriber equipment transmission, judge according to described first cell identity information and second cell identity information whether subscriber equipment is positioned at same sub-district, if, then enter step 103, if not, then enter step 104.
Set up request message in first connection that receives the subscriber equipment transmission, after the user equipment allocation corresponding system resources, promptly connect sub-district A transmission first connection of setting up request message and set up message to subscriber equipment transmission first, because subscriber equipment may move, system asks transmission first connection to set up message during this period of time from receiving the first connection foundation, subscriber equipment may be sub-district A or be positioned at the edge of sub-district A no longer, and cause subscriber equipment not receive connecting to set up message or message is set up in complete connection, at this moment, subscriber equipment promptly can send to connect once more sets up request message, i.e. request message is set up in second connection.
Receive that subscriber equipment sends second connect set up the request message and second cell identity information after, judge whether first cell identity information and second cell identity information be consistent, thereby determine subscriber equipment and whether be positioned at same sub-district, if it is consistent, show that then subscriber equipment is be positioned at that same sub-district sends first connects and set up request message and second and connect and set up request message, otherwise, show that then subscriber equipment is positioned at different districts and sends.
Need illustrate, subscriber equipment sends to connect sets up request message, the user totem information that has comprised subscriber equipment, system has preserved described user ID, connect when setting up request message when receiving, can determine that according to user totem information this subscriber equipment is that request message is set up in the connection that sends for the first time or request message is set up in the connection of retransmitting.
Step 103: send described first connection to subscriber equipment again and set up message.
When definite subscriber equipment is positioned at same sub-district, think that then subscriber equipment owing to be positioned at cell edge, has been subjected to interference, cause successfully receiving first connection and set up message, set up message so resend described first connection.
Step 104: redistribute system resource and send second for subscriber equipment and connect and to set up message.
When determining that sending first and second connections sets up request message, subscriber equipment is positioned at different districts, for example, subscriber equipment sends first and connects when setting up request message, be positioned at sub-district A, connect when setting up request message and send second, be positioned at sub-district B, twice sub-district, front and back is inconsistent, distributed system resources when then the first connection request message will be deleted by system, again be user equipment allocation system resource, and set up message to the sub-district at subscriber equipment place B transmission second connection, subscriber equipment can receive this second connection and set up message.
Need to prove, subscriber equipment is positioned at different sub-districts, and its pairing system resource is different, carries out transmission of Information thereby just can be implemented in different districts, if subscriber equipment then needs to redistribute system resource for subscriber equipment not in same sub-district.
Step 105: the reception subscriber equipment sets up message according to described first connection or the connection setup complete message that returns after message connects is set up in second connection.
Subscriber equipment receive connect set up message after, after setting up message and require to connect according to connection, send connection setup complete message, system receives this connection setup complete message, realized the initial access process of subscriber equipment, subscriber equipment can carry out transmission of Information in the sub-district, place.
If subscriber equipment still is positioned at same sub-district, then set up and return first connection setup complete message after message connects according to first connection that receives again, if subscriber equipment not in same sub-district, is then set up according to second connection that receives and is returned second connection setup complete message after message connects.
Need to prove that the process that specifically connects of subscriber equipment is same as the prior art, does not repeat them here.
In embodiments of the present invention, subscriber equipment sends first and connects when setting up request message, the cell identity information at place when system can preserve subscriber equipment and sends this connection and set up request message, when request message is set up in second connection that receives this subscriber equipment, whether the cell identity information of judging twice is consistent, judge promptly whether subscriber equipment is positioned at same sub-district, if be positioned at same sub-district, then system can think that subscriber equipment is interfered not receive to connect and sets up message, can resend to connect and set up message, if not being positioned at same sub-district, then system can be this user equipment allocation resource again, therefore can send to the sub-district at its current place to connect and set up message, by the embodiment of the invention, when subscriber equipment not in same sub-district, message is set up in the connection that the system that still can receive sends, thereby can finish the process of initial access, improve the success rate of initial access.
Referring to Fig. 2, show a kind of flow chart of realizing the initial method embodiment 2 that inserts of subscriber equipment of the present invention, can may further comprise the steps:
Step 201: the request message and first cell identity information are set up in first connection of preserving the subscriber equipment transmission, and after being user equipment allocation system resource, sending first connection to subscriber equipment and set up message.
This step can be identical with method embodiment 1, do not repeat them here.
Step 202: after the request message and second cell identity information are set up in second connection that receives the subscriber equipment transmission, judge according to first cell identity information and second cell identity information whether subscriber equipment is positioned at same sub-district, if, then enter step 203, if not, then enter step 206.
Wherein, subscriber equipment sends to connect sets up request message, the user totem information that has comprised subscriber equipment, system preserves described user ID, whether connect when setting up request message when receiving, can determine according to user totem information is that request message is set up in the connection that this subscriber equipment sends for the second time.
Subscriber equipment sends and connects when setting up request message, the cell identity information at place when system can preserve subscriber equipment and sends this connection and set up request message, when request message is set up in second connection that receives this subscriber equipment transmission, whether the cell identity information of judging twice is consistent, can determine whether subscriber equipment is positioned at same sub-district.
Step 203: the movement position relation of judging subscriber equipment and described sub-district.
When subscriber equipment is positioned at cell edge, may causes subscriber equipment not receive connection and set up message, at this moment, subscriber equipment has three kinds of directions of motion for described sub-district: enter this sub-district, leave this sub-district and do tangential motion at this cell edge.
When definite subscriber equipment is positioned at same sub-district, think that then subscriber equipment is owing to be positioned at cell edge, be subjected to interference, cause successfully to receive first connection and set up message, resend to the user first connect set up message before, need judge at first that the movement position of subscriber equipment and described sub-district concerns.
Request message is set up in first connection that subscriber equipment sends and request message is set up in second connection, has comprised deflection information and received signal code power.System has preserved these information, according to the deflection information of twice preservation and the variation of received signal code power, can judge the movement position relation of subscriber equipment with respect to described sub-district, and concrete deterministic process can be described below:
When the difference of twice deflection less than first preset value, twice received signal code power successively decreases and difference during greater than second preset value, determines that then subscriber equipment is positioned at cell edge and enters described sub-district;
When the difference of twice deflection greater than the 3rd preset value, the difference of twice received signal code power is less than the 4th preset value, determines that then subscriber equipment does tangential motion at this cell edge;
When the difference of twice deflection less than the 5th preset value, and twice received signal code power increases progressively and difference during greater than the 6th preset value, determines that then subscriber equipment is positioned at cell edge and leaves described sub-district.
Need to prove, in the above-mentioned deterministic process, received signal code successively decrease and difference greater than second preset value, illustrate that received signal code power reduces rapidly, received signal code increase progressively and difference greater than the 6th preset value, illustrate that received signal code power increases rapidly.Then direction angle or received signal code power change greatly or change little other situations greater than a certain preset value or less than a certain preset value.Wherein, described first preset value, second preset value, the 3rd preset value, the 4th preset value, the 5th preset value and the 6th preset value are set according to practical situations is concrete.
With the subscriber equipment that is positioned on the motor vehicles is example, because motor vehicles move comparatively fast, suppose that its speed of service is 10m/s, when the area coverage of current area is 5km, then described first preset value, the 3rd preset value and the 5th preset value are identical numerical value 0.003, second preset value, the numerical value of the 4th preset value and the 5th preset value is 0, that is to say, the difference and 0.003 that is positioned at before and after the subscriber equipment on the motor vehicles twice deflection is made comparisons, before and after twice received signal code power difference and 0 make comparisons, can judge that the subscriber equipment that draws in these motor vehicles and the movement position of current area concern.
In above-mentioned example, first preset value, the 3rd preset value and the 5th preset value, the comparison value of promptly judging the deflection difference are identical numerical value 0.003; Second preset value, the 4th preset value and the 6th preset value judge that promptly the comparison value of received signal code power difference also is identical numerical value 0.It will be appreciated by persons skilled in the art that in other practical applications described preset value can be set to different numerical value as the case may be.
Need to prove that above-mentioned example just describes with the subscriber equipment that is arranged in motor vehicles, for other actual conditions, as handheld device of pedestrian etc., because the different speeds of service of subscriber equipment, then the preset value of She Dinging is also different, gives unnecessary details no longer one by one at this.
In addition, preferably, in the practical application scene, can be directly according to the size of twice received signal code power in front and back, can judge that drawing subscriber equipment is to enter or away from current area, promptly when twice received signal code power in front and back successively decreased, expression entered current area, when twice received signal power in front and back increased progressively, expression was away from current area.
Step 204: determine that described subscriber equipment is positioned at described cell edge and enters described sub-district, or when described cell edge is done tangential motion, resend first connection and set up message.
Subscriber equipment is positioned at cell edge, and is just entering this sub-district, perhaps does tangential motion at this cell edge, thinks that then subscriber equipment owing to be interfered, cause successfully receiving first connection and sets up message, then resends first connection and sets up message.
Step 205: when determining that described subscriber equipment is positioned at cell edge and leaves described sub-district, then delete distributing system resource, and finish this initial access process.
Though subscriber equipment is positioned at cell edge, but just leaving this sub-district, then will be away from this sub-district owing to judging subscriber equipment, then request message is set up in connection for the second time and do not done response, delete distributed system resources, and finishing this initial access process, request message is set up in connection to wait for next time.
Step 206: redistribute system resource and send second for subscriber equipment and connect and to set up message.
When determining that sending first and second connections sets up request message, subscriber equipment is positioned at different districts, for example, subscriber equipment sends first and connects when setting up request message, is positioned at sub-district A, connect when setting up request message and send second, be positioned at sub-district B, twice sub-district, front and back is inconsistent, distributed system resources when then the first connection request message will be deleted by system, again be user equipment allocation system resource, and set up message to the sub-district at subscriber equipment place B transmission second connection.
Step 207: the reception subscriber equipment sets up message according to described first connection or the connection setup complete message that returns after message connects is set up in second connection.
Subscriber equipment receive connect set up message after, set up the message requirement according to connection, after connecting, send connection setup complete message, after system receives this connection setup complete message, promptly realized the initial access process of subscriber equipment, subscriber equipment can carry out transmission of Information in this sub-district.
In embodiments of the present invention, subscriber equipment sends first and connects when setting up request message, the cell identity information at place when system can preserve subscriber equipment and sends this connection and set up request message, when request message is set up in second connection that receives this subscriber equipment, whether the cell identity information of judging twice is consistent, judge promptly whether subscriber equipment is positioned at same sub-district, if be positioned at same sub-district, the movement position relation of subscriber equipment and this sub-district can be judged by system, according to different movement relations, whether decision resends first connection and sets up message, if not being positioned at same sub-district, then system is this user equipment allocation resource again, therefore can send second connection to the sub-district at its current place and set up message, passes through the embodiment of the invention, when subscriber equipment during not in same sub-district, message is set up in the connection that the system that still can receive sends, thereby can finish the process of initial access, has improved the success rate of initial access.Owing to improved the success rate of initial access, therefore reduced network allocation unnecessary system resource.
A practical situations of the present invention is at UMTS (Universal Mobile Telecommunications System, universal mobile telecommunications system) in the system, UE (User Equipment, subscriber equipment) initial access process generally is RRC (Radio Resource Control, Radio Resource control) process is set up in connection, promptly sets up a RRC and connects.Connect and to set up request message and be RRC and connect and set up request message, connect and set up message and be RRC and connect and set up message, connection setup complete message is the RRC connection setup complete message.UE is at PRACH (Physical Random Access Channel, Physical Random Access Channel) sends the RRC connection and set up request message, RSCP (Received Signal Code Power, received signal code power) promptly be on this channel, to receive signal code power, AOA (Angle ofArrival, deflection information) is that Node B measures in physical layer.Process is set up in the RRC connection specifically can be referring to mentioned above.
Referring to Fig. 3, show a kind of structural representation of realizing the initial system embodiment 1 that inserts of subscriber equipment of the present invention, can comprise:
First receiving element 301: be used to receive that subscriber equipment sends first connects and set up request message and first cell identity information or second and connect and set up the request message and second cell identity information;
Preserve unit 302, be used to preserve the information that described first receiving element 301 receives;
First judging unit 303 is used for judging according to described first cell identity information and second cell identity information whether subscriber equipment is positioned at same sub-district;
Cell identity information according to twice judges whether unanimity, can learn that sending first connects and set up request message and second and connect whether subscriber equipment is positioned at same sub-district when setting up request message.
Allocation units 304 are used for connecting and being user equipment allocation system resource after setting up request message receiving first, maybe connect to set up and are user equipment allocation system resource when request message and subscriber equipment are positioned at different districts again when receiving second.
When receiving connection request message, allocation units 304 are user equipment allocation system resource, concrete is, and to be used for when receiving first connection be system resources such as user equipment allocation network side resource, interface-free resources when setting up request message, when receiving the second connection request message and judging subscriber equipment is not when being positioned at the second connection request message of same sub-district transmission, deleting distributed system resources, is the new system resource of user equipment allocation again.
Transmitting element 305 is used for sending after for user equipment allocation system resource first and connects and set up message and maybe send second connection set up message when redistributing system resource for subscriber equipment after.
Set up request message in the connection that receives the subscriber equipment transmission, promptly first connects and to set up request message or second and connect and set up request message, and transmitting element 305 promptly sends first according to cell identity information and connects and set up message or second and connect and set up message in this sub-district.
Second receiving element 306 is used to receive subscriber equipment and connects according to first and set up message or second and connect and set up the connection setup complete message that returns after message connects.
Subscriber equipment sets up message according to first connection or message content is set up in second connection, finishes and sets up operation, sends connection setup complete message on allocated channel, and second receiving element 306 promptly receives this connection setup complete message.Thereby realized the initial access process of subscriber equipment, subscriber equipment can carry out transmission of Information in the sub-district, place.
In embodiments of the present invention, subscriber equipment sends first and connects when setting up request message, the cell identity information at place when system can preserve subscriber equipment and sends this connection and set up request message, when request message is set up in second connection that receives this subscriber equipment, whether the cell identity information of judging twice is consistent, judge promptly whether subscriber equipment is positioned at same sub-district, if be positioned at same sub-district, then system can think that subscriber equipment is interfered not receive to connect and sets up message, can resend to connect and set up message, if not being positioned at same sub-district, then system can be this user equipment allocation resource again, therefore can send to the sub-district at its current place to connect and set up message, by the embodiment of the invention, when subscriber equipment during not in same sub-district, message is set up in the connection that the system that still can receive sends, thereby can finish the process of initial access, improve the success rate of initial access.
Referring to Fig. 4, show a kind of structural representation of realizing the initial system embodiment 2 that inserts of subscriber equipment of the present invention, can comprise:
First receiving element 401 is used to receive that subscriber equipment sends first connects and set up request message and first cell identity information or second and connect and set up the request message and second cell identity information.
First judging unit 403 is used for judging according to described first cell identity information and second cell identity information whether subscriber equipment is positioned at same sub-district.
Second judging unit 404: be used for when first judging unit, 403 results when being, judge that the subscriber equipment and the movement position of this sub-district concern.
Wherein, deflection information and the received signal code power that request message comprises that subscriber equipment carries set up in the connection that the user sends, then described second judging unit 404 specifically is used to judge the variation size of deflection information and received signal code power, when the difference of twice deflection less than first preset value, twice received signal code power successively decreases and difference during greater than second preset value, determines that then subscriber equipment is positioned at cell edge and enters described sub-district; When the difference of twice deflection greater than the 3rd preset value, and the difference of twice received signal code power is less than the 4th preset value, determines that then subscriber equipment does tangential motion at this cell edge; When the difference of twice deflection less than the 5th preset value, twice received signal code power increases progressively and difference during greater than the 6th preset value, determines that then subscriber equipment is positioned at cell edge and leaves described sub-district.
Transmitting element 406 is used for sending after for user equipment allocation system resource first and connects and set up message and maybe send second connection set up message when redistributing system resource for subscriber equipment after.
Wherein, transmitting element 406 specifically is used for determining that when described second judging unit 404 described subscriber equipment is positioned at described cell edge and enters described sub-district, or when doing tangential motion in described sub-district, send first connection and set up message, or when described first judging unit, 403 results for not the time, send second and connect and sets up message.
Second receiving element 407 is used to receive subscriber equipment and connects according to first and set up message or second and connect and set up the connection setup complete message that returns after message connects.
In embodiments of the present invention, subscriber equipment sends and connects when setting up request message, the cell identity information at place when system can preserve subscriber equipment and sends this connection and set up request message, when request message is set up in second connection that receives this subscriber equipment, whether the cell identity information of judging twice is consistent, judge promptly whether subscriber equipment is positioned at same sub-district, if be positioned at same sub-district, the movement position relation of subscriber equipment and this sub-district can be judged by system, according to different movement relations, whether decision resends first connection and sets up message, if not being positioned at same sub-district, then system is this user equipment allocation resource again, therefore can send second connection to the sub-district at its current place and set up message, by the embodiment of the invention, improved the success rate of initial access.Owing to improved the success rate of initial access, therefore reduced the unnecessary system resource of network allocation.
It specifically can be the equipment of network side for the initial system that inserts of realization subscriber equipment provided by the present invention, a practical application scene of the present invention is in the UMTS system, then the initial system that inserts of this realization subscriber equipment specifically can be the RNC (Radio Network Controller, radio network controller) in a kind of mobile communication system.
Need to prove, system embodiment described above only is schematic, wherein said unit as the separating component explanation can or can not be physically to separate also, the parts that show as the unit can be or can not be physical locations also, promptly can be positioned at a place, perhaps also can be distributed on a plurality of network element.Can select wherein some or all of module to realize the purpose of present embodiment scheme according to the actual needs.Those of ordinary skills promptly can understand and implement under the situation of not paying creative work.
Each embodiment adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.For the disclosed device of embodiment, because it is corresponding with the embodiment disclosed method, so description is fairly simple, relevant part partly illustrates referring to method and gets final product.
At last, also need to prove, in this article, relational terms such as first and second grades only is used for an entity or operation are made a distinction with another entity or operation, and not necessarily requires or hint and have the relation of any this reality or in proper order between these entities or the operation.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby make and comprise that process, method, article or the equipment of a series of key elements not only comprise those key elements, but also comprise other key elements of clearly not listing, or also be included as this process, method, article or equipment intrinsic key element.Do not having under the situation of more restrictions, the key element that limits by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises described key element and also have other identical element.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (8)
1. realize the initial method that inserts of subscriber equipment for one kind, it is characterized in that described method comprises:
Preserve first connection of subscriber equipment transmission and set up the request message and first cell identity information, and after being user equipment allocation system resource, sending first connection to subscriber equipment and set up message;
After the request message and second cell identity information are set up in second connection that receives the subscriber equipment transmission, judge according to described first cell identity information and second cell identity information whether subscriber equipment is positioned at same sub-district, if, then resend described first connection and set up message, if not, then redistribute system resource and send second and connect and to set up message for subscriber equipment;
The reception subscriber equipment sets up message according to described first connection or the connection setup complete message that returns after message connects is set up in second connection.
2. method according to claim 1 is characterized in that, and is described when subscriber equipment is positioned at same sub-district, resends described first and connects and to set up message and comprise:
Judge the movement position relation of subscriber equipment and described sub-district;
Determine that described subscriber equipment is positioned at described cell edge and enters described sub-district, or when described cell edge is done tangential motion, resend first connection and set up message;
When determining that described subscriber equipment is positioned at described cell edge and leaves described sub-district, finish this initial access process.
3. method according to claim 2, it is characterized in that, deflection information and the received signal code power that request message comprises that subscriber equipment carries set up in described connection, determines that then described subscriber equipment is positioned at cell edge and enters described sub-district, or does tangential motion in described sub-district and comprise:
When the difference of twice deflection less than first preset value, twice received signal code power successively decreases and difference during greater than second preset value, determines that then subscriber equipment is positioned at cell edge and enters described sub-district;
When the difference of twice deflection greater than the 3rd preset value, and the difference of twice received signal code power is less than the 4th preset value, determines that then subscriber equipment does tangential motion at this cell edge.
4. method according to claim 3 is characterized in that, described definite described subscriber equipment is positioned at cell edge and comprises away from described sub-district:
When the difference of twice deflection less than the 5th preset value, twice received signal code power increases progressively and difference during greater than the 6th preset value, determines that then subscriber equipment is positioned at cell edge and leaves described sub-district.
5. method according to claim 1 is characterized in that, described connection is set up request message and also comprised user totem information, and described method also comprises:
Determine according to described user totem information whether request message is set up in the connection of described subscriber equipment transmission is that request message is set up in second connection.
6. realize the initial system that inserts of subscriber equipment for one kind, it is characterized in that described system comprises:
First receiving element is used to receive that subscriber equipment sends first connects and set up request message and first cell identity information or second and connect and set up the request message and second cell identity information;
Preserve the unit, be used to preserve the information that described first receiving element receives;
First judging unit is used for judging according to described first cell identity information and second cell identity information whether subscriber equipment is positioned at same sub-district;
Allocation units are used for connecting and being user equipment allocation system resource after setting up request message receiving first, maybe connect to set up and are user equipment allocation system resource when request message and subscriber equipment are positioned at different districts again when receiving second;
Transmitting element is used for sending after for user equipment allocation system resource first and connects and set up message and maybe send second connection set up message when redistributing system resource for subscriber equipment after;
Second receiving element is used to receive subscriber equipment and connects according to first and set up message or second and connect and set up the connection setup complete message that returns after message connects.
7. system according to claim 6 is characterized in that, described system also comprises:
Second judging unit, be used for when the first judging unit result when being, judge that the subscriber equipment and the movement position of described sub-district concern;
End unit is used for determining that described subscriber equipment is positioned at cell edge and during away from described sub-district, finishing this initial access process when described second judging unit;
Then, described transmitting element specifically is used for determining that when described second judging unit described subscriber equipment is positioned at described cell edge and enters described sub-district, or when doing tangential motion in described sub-district, send first connection and set up message, or when the described first judging unit result for not the time, send second and connect and sets up message.
8. system according to claim 7 is characterized in that, deflection information and the received signal code power that request message comprises that subscriber equipment carries set up in described connection, then,
Described second judging unit specifically is used to judge the variation size of deflection information and received signal code power, when the difference of twice deflection less than first preset value, twice received signal code power successively decreases and difference during greater than second preset value, determines that then subscriber equipment is positioned at cell edge and enters described sub-district; When the difference of twice deflection greater than the 3rd preset value, and the difference of twice received signal code power is less than the 4th preset value, determines that then subscriber equipment does tangential motion at this cell edge; When the difference of twice deflection less than the 5th preset value, twice received signal code power increases progressively and difference during greater than the 6th preset value, determines that then subscriber equipment is positioned at cell edge and leaves described sub-district.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110175471.2A CN102223727B (en) | 2011-06-27 | 2011-06-27 | Method and system for realizing initial access of user equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110175471.2A CN102223727B (en) | 2011-06-27 | 2011-06-27 | Method and system for realizing initial access of user equipment |
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| CN102223727A true CN102223727A (en) | 2011-10-19 |
| CN102223727B CN102223727B (en) | 2014-10-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111818662A (en) * | 2014-05-09 | 2020-10-23 | 华为技术有限公司 | User equipment, base station, access base station and wireless link monitoring method |
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| CN101175298A (en) * | 2006-11-01 | 2008-05-07 | 大唐移动通信设备有限公司 | Descending response message transmission method and system of accidental access stage |
| CN101466132A (en) * | 2007-12-20 | 2009-06-24 | 大唐移动通信设备有限公司 | Access method and system for changing district by user in high speed circumstance |
| CN101500279A (en) * | 2008-02-03 | 2009-08-05 | 中兴通讯股份有限公司 | Wireless link recovery method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101175298A (en) * | 2006-11-01 | 2008-05-07 | 大唐移动通信设备有限公司 | Descending response message transmission method and system of accidental access stage |
| CN101466132A (en) * | 2007-12-20 | 2009-06-24 | 大唐移动通信设备有限公司 | Access method and system for changing district by user in high speed circumstance |
| CN101500279A (en) * | 2008-02-03 | 2009-08-05 | 中兴通讯股份有限公司 | Wireless link recovery method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111818662A (en) * | 2014-05-09 | 2020-10-23 | 华为技术有限公司 | User equipment, base station, access base station and wireless link monitoring method |
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