CN103188750A

CN103188750A - Switching method, node and system

Info

Publication number: CN103188750A
Application number: CN2011104563488A
Authority: CN
Inventors: 陈东; 徐小英
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2011-12-30
Filing date: 2011-12-30
Publication date: 2013-07-03
Anticipated expiration: 2031-12-30
Also published as: CN103188750B; WO2013097517A1

Abstract

The embodiment of the invention discloses a handover method, node and system, relates to the field of communication technology, and can improve the efficiency and success rate of cell handover. The method of the present invention includes: determining the target cell set identity according to the target cell scrambling code in the measurement report of the user equipment UE; sending the target cell set identity to the target node, so that the target node can determine the target cell set identity according to the target cell set identity A set of candidate target cells. The embodiment of the present invention is mainly used in the process of UE switching cells.

Description

Changing method, node and system

Technical field

The present invention relates to wireless communication field, relate in particular to a kind of changing method, node and system.

Background technology

Wireless communication field is faced with the pressure of data service explosive increase, in order to improve network capacity and to reduce transmission cost, has proposed a kind of heterogeneous network (Heterogeneous Network, Hetnet) technology in the industry.Hetnet is made of together a plurality of different sizes, dissimilar residential quarters, comprising: macrocell (Macro cell) and little class residential quarter.Wherein little class residential quarter comprises: Microcell (Micro cell), picocell (Pico Cell), Femto cell (Femto Cell), far end radio frequency head (Remote Radio Head, RRH) residential quarter of form etc.By disposing more little class residential quarter for the intensive zone of traffic, can effectively improve this regional network capacity, and little class residential quarter is less because of scale, its construction cost (Capital Expenditure, Capax) and operation cost (Operating Expense, Opex) all lower, so Hetnet is subjected to the attention of numerous operators, is an important directions of wireless network evolution.

Switching from macrocell to little class residential quarter refers to subscriber equipment (User Equipment, when UE) residing in macrocell, can send service quality report to source node, source node can switch to better other little class residential quarters of service quality from the macrocell of current service with this UE according to service quality.

In the prior art, because traditional UE does not possess the ability that reads the adjacent area system information, UE can only report the scrambler of Target cell to source control, and can not report Target Cell Identifier.And little class adjacent area quantity of macrocell is a lot, can be very limited for the scrambler that use little class residential quarter, therefore a plurality of little classes residential quarter reuse probably identical scrambler (Primary Scrambling Code, PSC).

Therefore, when source node was received the scrambler of the Target cell that UE reports, therefore this scrambler may can't determine Target cell to a plurality of little classes residential quarter should be arranged, and also can't determine candidate's Target cell set.Source node is according to the comparison of the scrambler of the adjacent little class with all of this scrambler residential quarter, and to sending request for building link message with one of little class residential quarter of this scrambler coupling, causes possibly switching to wrong residential quarter, is difficult to guarantee successfully UE to be switched to Target cell.

Summary of the invention

Many aspects of the present invention provide a kind of changing method, node and system, can improve efficient and the success rate that switch the residential quarter.

An aspect of of the present present invention provides a kind of changing method, comprising: determine the Target cell set identification according to the Target cell scrambler in the measurement report of user equipment (UE); Described Target cell set identification is sent to destination node, so that described destination node is determined candidate's Target cell set according to described Target cell set identification.

Another aspect of the present invention provides a kind of changing method, comprising: the Target cell set identification that the reception sources node sends, determine the Target cell set according to described Target cell set identification; Switching flow is finished in select target residential quarter in described Target cell set.

Another aspect of the present invention provides a kind of source node, comprising: Target cell set identification unit is used for determining the Target cell set identification according to the Target cell scrambler of the measurement report of user equipment (UE); Transmitting element is used for the described Target cell set identification that described Target cell set identification unit generates is sent to destination node, so that described destination node is determined candidate's Target cell set according to described Target cell set identification.

Another aspect of the present invention provides a kind of destination node, comprising: Target cell set determining unit, be used for the Target cell set identification that the reception sources node sends, and determine candidate's Target cell set according to described Target cell set identification; The Target cell selected cell is used for gathering the select target residential quarter at the described Target cell that described Target cell set determining unit is determined, finishes switching flow.

Another aspect of the present invention provides a kind of switched system, it is characterized in that, comprising: source node and destination node.

Described source node is used for determining the Target cell set identification according to the Target cell scrambler of the measurement report of user equipment (UE); Described Target cell set identification is sent to destination node, so that described destination node is determined candidate's Target cell set according to described Target cell set identification.

Described destination node is used for the Target cell set identification that the reception sources node sends, and determines candidate's Target cell set according to described Target cell set identification; Switching flow is finished in select target residential quarter in described Target cell set.

The changing method of foregoing description, node and system, the scope that can dwindle candidate's Target cell improves the residential quarter success rate for switching.

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 some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is the changing method flow chart of source node side in one embodiment of the invention;

Fig. 2 is the changing method flow chart of destination node side in another embodiment of the present invention;

Fig. 3 is the changing method flow chart of source node side in another embodiment of the present invention;

Fig. 4 is the changing method flow chart of destination node side in another embodiment of the present invention;

Fig. 5 is the changing method flow chart of another kind of source node side in another embodiment of the present invention;

Fig. 6 is the changing method flow chart in another embodiment of the present invention;

Fig. 7 is that a kind of source node in another embodiment of the present invention is formed schematic diagram;

Fig. 8 is that the another kind of source node in another embodiment of the present invention is formed schematic diagram;

Fig. 9 is that the another kind of source node in another embodiment of the present invention is formed schematic diagram;

Figure 10 is that a kind of destination node in another embodiment of the present invention is formed schematic diagram;

Figure 11 is that the another kind of destination node in another embodiment of the present invention is formed schematic diagram;

Figure 12 is that the switched system in another embodiment of the present invention is formed schematic diagram.

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 obtains under the creative work prerequisite.

The techniques described herein may be used in various communication systems, current 2G for example, 3G communication system and next generation communication system, global system for mobile communications (GSM for example, Global System for Mobile communications), code division multiple access (CDMA, Code Division Multiple Access) system, time division multiple access (TDMA, Time Division Multiple Access) system, Wideband Code Division Multiple Access (WCDMA) (WCDMA, Wideband Code Division Multiple Access Wireless), frequency division multiple access (FDMA, Frequency Division Multiple Addressing) system, OFDM (OFDMA, Orthogonal Frequency-Division Multiple Access) system, Single Carrier Frequency Division Multiple Access (SC-FDMA) system, GPRS (GPRS, General Packet Radio Service) system, Long Term Evolution (LTE, Long Term Evolution) system, and other these type of communication systems.

In conjunction with terminal and/or base station and/or base station controller various aspects are described herein.

Subscriber equipment, can be that wireless terminal also can be catv terminal, wireless terminal can be to point to the equipment that the user provides voice and/or data connectivity, has the portable equipment of wireless connections function or is connected to other treatment facilities of radio modem.Wireless terminal can be through wireless access network (for example, RAN, Radio Access Network) communicates with one or more core net, wireless terminal can be portable terminal, as mobile phone (or being called " honeycomb " phone) with have the computer of portable terminal, for example, can be portable, pocket, hand-hold type, mobile device built-in computer or vehicle-mounted, they and wireless access network exchange language and/or data.For example, Personal Communications Services (PCS, Personal Communication Service) phone, cordless telephone, Session Initiation Protocol phone, wireless local loop (WLL, Wireless Local Loop) stand, personal digital assistant equipment such as (PDA, Personal Digital Assistant).Wireless terminal also can be called system, subscriber unit (Subscriber Unit), subscriber station (Subscriber Station), mobile radio station (Mobile Station), travelling carriage (Mobile), distant station (Remote Station), access point (Access Point), remote terminal (Remote Terminal), access terminal (Access Terminal), user terminal (User Terminal), user agent (User Agent), subscriber equipment (User Device) or subscriber's installation (User Equipment).

Base station (for example, access point) can refer in the Access Network on the interface aloft the equipment by one or more sectors and wireless terminal communications.Air frame and IP grouping that the base station can be used for receiving are changed mutually, and as the router between the remainder of wireless terminal and Access Network, wherein the remainder of Access Network can comprise Internet protocol (IP) network.The base station also tunable to the attribute management of air interface.For example, the base station can be the base station (BTS, Base Transceiver Station) among GSM or the CDMA, it also can be the base station (NodeB) among the WCDMA, can also be the evolved base station (NodeB or eNB or e-NodeB, evolutional Node B) among the LTE, the present invention limit.

Source node and destination node can be the base station controllers (BSC, base station controller) among GSM or the CDMA, also can be the radio network controllers (RNC Radio Network Controller) among the WCDMA, and the present invention does not limit.

In addition, term " system " and " network " often are used interchangeably in this article herein.Herein term " and/or ", only be a kind of incidence relation of describing affiliated partner, can there be three kinds of relations in expression, for example, A and/or B, can represent: individualism A exists A and B, these three kinds of situations of individualism B simultaneously.In addition, character "/" herein, generally represent forward-backward correlation to as if a kind of " or " relation.

One embodiment of the invention provides a kind of changing method, can be applicable to the source node side, as shown in Figure 1.

101, source node is determined the Target cell set identification according to the Target cell scrambler in the measurement report of user equipment (UE).

In the present embodiment, source node according to the Target cell scrambler in the measurement report of user equipment (UE) determine the Target cell set identification method can for: generate the Target cell set identification according to Target cell scrambler and service macrocell sign; Also can for: according to Target cell scrambler and pre-configured Neighboring Cell List, obtain the Target cell set identification.For example, be provided with macrocell identification index table and little class cell scrambling concordance list in advance at source node.Comprise in this macrocell identification index table the control of described source node the macrocell sign of each macrocell correspondence, and the macrocell index value corresponding with each macrocell sign.The scrambler that comprises any the adjacent little class residential quarter in the macrocell of controlling with described source node in this little class cell scrambling concordance list, and the scrambler index value corresponding with each little class cell scrambling.Wherein each scrambler may be shared by a plurality of little classes residential quarter simultaneously, and a plurality of little class residential quarter that have identical scrambler adjacent with same macrocell can be called a little class set of cells on source node.

Wherein, the service macrocell sign of the Target cell scrambler that sends according to UE and the service macrocell correspondence at the current place of UE, search pre-configured macrocell identification index table and little class cell scrambling concordance list respectively, determine corresponding macrocell index value and scrambler index value, generate the Target cell set identification according to described macrocell index value and scrambler index value.This Target cell set identification correspondence be little class set of cells of one group of candidate, destination node can be chosen Target cell from little class set of cells of candidate.

In the present embodiment, can also generate little class set of cells sign and configuring neighbor cell list in advance on source node, wherein each macrocell correspondence disposes a Neighboring Cell List.For example, comprise information such as the corresponding little class set of cells sign of little class set of cells of and shared identical scrambler adjacent with described service macrocell, destination node marking in the Neighboring Cell List of service macrocell.Inquire about described Neighboring Cell List according to the Target cell scrambler and just can obtain corresponding Target cell set identification.In addition, source node can also receive Neighboring Cell List from network management system, and described Neighboring Cell List comprises the Target cell set identification.Described network management system is the functional software in the Radio Network System, configuration informations such as Neighboring Cell List can be stored in the memory space of arbitrary node, base station or other equipment in the Radio Network System, so that source node or destination node obtain Neighboring Cell List.

Need to prove, described source node can be radio network controller (Radio Network Controller, RNC) or the gateway of little class residential quarter, for example Microcell gateway, picocell gateway, Femto cell gateway etc.

102, source node sends to destination node with described Target cell set identification, so that described destination node is determined candidate's Target cell set according to described Target cell set identification.

For example, source node can directly send request for building link message by control unit interface to destination node for: source node with the method that described Target cell set identification sends to destination node, carries the Target cell set identification in this request for building link message.In the another embodiment of the present invention, source node can also be initiated handover request message to core net for: source node with the method that described Target cell set identification sends to destination node, by core net this handover request message is sent to destination node again, this handover request message can be RELOCATION REQUEST message or residential quarter handover request message etc.

Another embodiment of the present invention also provides a kind of changing method, can be applicable to the destination node side, as shown in Figure 2.

201, the Target cell set identification of destination node reception sources node transmission is determined candidate's Target cell set according to described Target cell set identification.

Wherein, the Target cell set identification that destination node reception sources node sends is determined candidate's Target cell set according to described Target cell set identification.For example, can pre-configured little class cell identification list on destination node, comprise little class set of cells sign of being formed by macrocell index value and scrambler index value in this little class cell identification list, and the corresponding little class set of cells of each little class set of cells sign.The Target cell set is adjacent with same macrocell and a plurality of little class residential quarter of shared identical scrambler, little class cell ID of above-mentioned a plurality of little classes residential quarter is recorded in little class cell identification list, and therefore a little class set of cells sign can corresponding a plurality of little class cell IDs in little class cell identification list.Determine the candidate Target cell set method can for: the Target cell set identification and the little class set of cells sign in this little class cell identification list that receive are compared, obtain at least one corresponding little class cell ID of little class set of cells sign of coupling, thereby determine candidate's Target cell set.Usually each little class set of cells sign can be to should there being a plurality of little class cell IDs, and little class residential quarter of class cell ID correspondence is adjacent with same macrocell slightly for this, and shared identical scrambler.

202, switching flow is finished in destination node select target residential quarter in described Target cell set.

Wherein, each little class residential quarter during destination node can be gathered to Target cell all sends the quality testing indication, so that the service quality of the to be switched UE of each little class cell detection just can select suitable little class residential quarter as Target cell according to the testing result of service quality.In the follow-up switching flow, send request for building link message to Target cell, after repeatedly mutual, UE switched in the Target cell and work on.

The changing method that the embodiment of the invention provides, determine the Target cell set identification according to the Target cell scrambler in the measurement report of UE, determine candidate's Target cell set according to this Target cell set identification, and then from the Target cell set, filter out Target cell, compare as the method for Target cell with little class residential quarter that one of stochastic searching in the prior art is corresponding with scrambler, can dwindle the scope of candidate's Target cell, improve the efficient that switch the residential quarter, and can from the Target cell set, filter out satisfactory Target cell, improve the residential quarter success rate for switching.

Further embodiment of this invention provides a kind of changing method, is applied to the source node side, as shown in Figure 3.

301, source node is mapped as corresponding macrocell index value with the macrocell sign, disposes described macrocell identification index table.

Wherein, source node is mapped as corresponding macrocell index value with the macrocell sign, dispose described macrocell identification index table method can for: according to default macrocell queueing discipline, the macrocell sign of the macrocell correspondence of source node control is mapped as corresponding macrocell index value, disposes described macrocell identification index table.For example, dispose a plurality of macrocells on the source node, obtain the macrocell sign of each macrocell correspondence, according to default macrocell queueing discipline the macrocell sign is sorted, the ordering back is mapped as the macrocell index value in order successively to each macrocell sign.For example, as shown in table 1, the macrocell sign is generally 28 in wireless communication protocol, and the figure place of macrocell index value can be set according to actual needs, for example 4,8,12 etc.In table 1 the macrocell index value is set at 12, each macrocell index value is corresponding one by one with the macrocell sign.

Macrocell index value (12bit)	Macrocell sign (28bit)
		0000 0000 0001	Macrocell sign 1
0000 0000 0002	Macrocell sign 2

Table 1

In addition, default macrocell queueing discipline can be the numerical values recited ordering from small to large according to the macrocell sign, also can sort from big to small for the numerical values recited according to the macrocell sign.Default macrocell queueing discipline can also be other sort methods, and the embodiment of the invention will illustrate no longer one by one.

Need to prove, ordering can be set and generate the script of tabulating and dispose this macrocell identification index table automatically, also can this macrocell identification index table of human configuration, but the mapping relations in the macrocell identification index table on the mapping relations in the macrocell identification index table on the source node and the destination node are identical.

302, source node is mapped as corresponding scrambler index value with little class cell scrambling, disposes described scrambler identification index table.

Wherein, source node is mapped as corresponding scrambler index value with little class cell scrambling, dispose described scrambler identification index table method can for: according to default little class residential quarter queueing discipline, detected little class cell scrambling is mapped as corresponding scrambler index value, disposes described scrambler identification index table.Concrete, source node gets access to adjacent little class cell scrambling from webmaster or continuous little class residential quarter gateway, perhaps adjacent little class cell scrambling is disposed in source control, each scrambler may be shared by a plurality of little classes residential quarter, according to default little class residential quarter queueing discipline little class cell scrambling is sorted, the ordering back is mapped as the scrambler index value in order successively to each little class cell scrambling.For example, as shown in table 2, little class cell scrambling is generally 9 in wireless communication protocol, corresponding scrambler index value also can be set according to actual needs, the length sum of the length of scrambler index value and macrocell index value, be the figure place of little class set of cells sign, so the figure place that the length of scrambler index value can be deducted the macrocell index value by the figure place of little class set of cells sign calculate.For example, the length of little class set of cells sign is 16 in wireless communication protocol, and predefined macrocell index value is 12, and the length of scrambler index value then can be 4 so.

Scrambler index value (4bit)	Little class cell scrambling (9bit)
		0001	Scrambler 1
0002	Scrambler 2

Table 2

In addition, Yu She little class residential quarter queueing discipline can also can sort for the numerical values recited according to little class cell scrambling from big to small for the numerical values recited ordering from small to large according to little class cell scrambling.Default little class residential quarter queueing discipline can also be other sort methods, and the embodiment of the invention will illustrate no longer one by one.

Need to prove, the script that ordering and generation scrambler identification index table can be set disposes this scrambler identification index table automatically, also can this scrambler identification index table of human configuration, but the mapping relations in the scrambler identification index table on the mapping relations in the scrambler identification index table on the source node and the destination node are identical.

In the present embodiment, can there be two kinds to obtain the method for Target cell set identification after pre-configured macrocell identification index table and the scrambler identification index table, a kind of method is that inquiry macrocell identification index table and scrambler identification index table generates little class set of cells sign in pre-configured process, configuring neighbor cell list is in order to directly obtain the Target cell set identification according to Target cell scrambler and Neighboring Cell List after receiving the Target cell scrambler; Another kind is inquiry macrocell identification index table and scrambler identification index table in handoff procedure, generates the Target cell set identification.

Below be presented in inquiry macrocell identification index table and scrambler identification index table in the handoff procedure earlier, generate the method flow of Target cell set identification:

In the present embodiment, step 301-302 is the pre-configured process of relevant entries on the source node, below handover operation on the source node is done specific descriptions.

303, source node receives the measurement report that user equipment (UE) sends, and comprises the Target cell scrambler in the described measurement report.

Wherein, UE itself has the function of the scrambler of measuring neighbor cell, can compare according to the service quality of residential quarter, UE place and neighbor cell, determines the Target cell that switches, and the Target cell scrambler is offered source node with measurement report in form.This measurement report can be quality testing report etc.Because the restriction of UE function only carries the Target cell scrambler, and does not comprise Target Cell Identifier in the measurement report.Source node according to the Target cell scrambler that comprises in the identification information of UE place service macrocell and the measurement report, can switch to UE with to serve macrocell adjacent and use in little class residential quarter of this Target cell scrambler after receiving the measurement report that UE sends.

304, source node is determined target scrambler index value according to scrambler identification index table and described Target cell scrambler, comprises the scrambler index value of little class cell scrambling and each little class cell scrambling correspondence in the wherein said scrambler identification index table.

Wherein, source node according to scrambler identification index table and described Target cell scrambler determine target scrambler index value method can for: according to the pre-configured scrambler identification index table of described Target cell scrambler inquiry, determine target scrambler index value.The composition mode of the scrambler index value in the composition mode of target scrambler index value and the scrambler identification index table is identical.For example, with little class cell scrambling comparison in the Target cell scrambler that receives and the table 2, after the match is successful with little class cell scrambling wherein, obtain the scrambler index value of little class cell scrambling correspondence of coupling, this scrambler index value is exactly target scrambler index value.

305, source node is determined service macrocell index value according to the service macrocell sign of cell ID concordance list and described UE, comprises macrocell sign and the corresponding macrocell index value of each macrocell sign in the wherein said macrocell identification index table.

Wherein, source node according to the service macrocell of cell ID concordance list and described UE sign determine service macrocell index value method can for: according to the pre-configured macrocell identification index table of service macrocell sign inquiry of described UE, determine service macrocell index value.The composition mode of the macrocell identification index value in the composition mode of service macrocell index value and the macrocell identification index table is identical.For example, source node can be determined the macrocell at the current place of UE, obtain corresponding service macrocell sign, service macrocell sign and the macrocell sign in the table 1 are compared, after marking matched success of macrocell wherein, obtain the corresponding macrocell index value of macrocell sign of coupling, this macrocell index value is served the macrocell index value exactly.

306, source node generates the Target cell set identification according to described target scrambler index value and service macrocell index value.

Wherein, the flow process that generates the Target cell set identification is specially: source node obtains the service macrocell sign of the service macrocell correspondence of UE, from the measurement report of UE, obtain the Target cell scrambler, look into macrocell identification index table and obtain serving the corresponding service macrocell index value of macrocell sign, look into scrambler identification index table and obtain target scrambler index value, with scrambler index value and the combination of service macrocell index value, generate the Target cell set identification.For example, as shown in table 3, the length of a Target cell set identification is 16 in wireless communication protocol, formed by two parts, be respectively 4 target scrambler index value and 12 service macrocell index value, the precedence relationship of above-mentioned two index values can be made an appointment, and present embodiment is not done restriction.

Macrocell index value (12bits)	Scrambler index value (4bits)
		0000 0000 0001	0001
0000 0000 0001	0002

Table 3

For example, table look-up 1 and table 2 obtain target scrambler index value 0001 and service macrocell index value 00,000,000 0001, then can obtain Target cell set identification 0,000 0,000 0,001 0001.

307, source node sends to destination node with described Target cell set identification, so that described destination node is determined candidate's Target cell set according to described Target cell set identification.

Wherein, source node with described Target cell set identification send to destination node method can for: send request for building link message to described destination node, carry described Target cell set identification in the described request for building link message.In another embodiment of the present invention, the method that source node sends to destination node with described Target cell set identification also can for: send handover request message to described destination node, this handover request message can be handed down to destination node via core net, can be RELOCATION REQUEST message or residential quarter handover request message etc., carry described Target cell set identification in the described handover request message.

In the another kind of application scenarios of the embodiment of the invention, can also in pre-configured process, inquire about macrocell identification index table and scrambler identification index table and generate little class set of cells sign, configuring neighbor cell list, thus after receiving the Target cell scrambler, directly obtain the Target cell set identification according to Target cell scrambler and Neighboring Cell List.As shown in Figure 4, in the source node side, changing method can also comprise:

308, source node generates little class set of cells and identifies configuring neighbor cell list according to macrocell sign, corresponding little class cell scrambling, described macrocell identification index table and the described scrambler identification index table in little class residential quarter adjacent with described macrocell.

Wherein, comprise the corresponding little class set of cells sign of the corresponding little class cell scrambling in the little class residential quarter adjacent with macrocell and described little class cell scrambling in the described Neighboring Cell List.Macrocell sign and the little class residential quarter corresponding little class cell scrambling adjacent with each macrocell according to the macrocell correspondence on the source node, inquire about described macrocell identification index table and described scrambler identification index table respectively, and the macrocell index value that obtains of query composition and little class cell index value generate little class set of cells sign, is written in the Neighboring Cell List the little class set of cells sign that generates corresponding with little class cell scrambling.The flow process that generates little class set of cells sign is identical with the method for generation Target cell set identification in the step 306, be specially: obtain macrocell sign and the little class cell scrambling adjacent with macrocell on the source node, look into macrocell identification index table and obtain the corresponding macrocell index value of macrocell sign, look into scrambler identification index table and obtain the scrambler index value, scrambler index value with little class residential quarter correspondence, and the combination of the macrocell index value of the macrocell correspondence at place, little class residential quarter, generate little class set of cells sign.

Wherein, each macrocell is to there being a Neighboring Cell List, and what little class set of cells sign was corresponding is adjacent with same macrocell and a plurality of little class residential quarter of shared identical scrambler, i.e. little class set of cells.For example, as shown in table 4 is the Neighboring Cell List of a macrocell, according to little class set of cells sign that the sign of the scrambler of adjacent little class residential quarter and this macrocell generates, the corresponding little class set of cells sign of each little class cell scrambling.

Little class cell scrambling	Node ID	Little class set of cells sign (16bits)
			0001	Node ID 1	0000 0000 0001 0001
0002	Node ID 1	0000 0000 0001 0002

Table 4

In addition, in present wireless network architecture, each source node has only an adjacent destination node, can search the ID of destination node when needs carry out handover operation, can directly the Target cell set identification be sent to the destination node of unique correspondence.Be understandable that, if in other application scenarioss of the embodiment of the invention, when source node has a plurality of adjacent destination node, can in Neighboring Cell List, store the destination node ID of each little class cell scrambling correspondence in advance, thereby in handoff procedure according to Target cell scrambler and Neighboring Cell List, both destination node ID can be obtained, the Target cell set identification can be obtained again.

In the another kind of application scenarios of the embodiment of the invention, also can adopt following method alternative steps 308 configuring neighbor cell lists, the method of this configuring neighbor cell list is: the Target cell set identification that receives little class cell scrambling correspondence from network management system, configuring neighbor cell list perhaps directly receives from network management system and has disposed the Neighboring Cell List of finishing.

309, source node obtains the Target cell set identification according to Target cell scrambler and described Neighboring Cell List.

Wherein, according to Target cell scrambler and described Neighboring Cell List obtain the Target cell set identification method can for: according to the pre-configured Neighboring Cell List of described Target cell set identification inquiry, obtain corresponding Target cell set identification.Concrete, with the little class cell scrambling comparison in the Target cell scrambler that receives in the step 303 and the Neighboring Cell List, obtain the little class set of cells sign corresponding with little class cell scrambling of Target cell scrambler coupling, this little class set of cells sign is the Target cell set identification.For example, according to Target cell scrambler 0001 question blank 4, obtain corresponding Target cell set identification 0,000 0,000 0,001 0001, perhaps also can obtain node ID 1 simultaneously.Then the Target cell set identification that gets access to being sent to destination node gets final product.

Another embodiment of the present invention also provides a kind of changing method, is applied to the destination node side, and as shown in Figure 5, this method comprises:

401, destination node is mapped as corresponding macrocell index value with the macrocell sign, disposes described macrocell identification index table.

Concrete, can the adjacent macro cell sign be mapped as corresponding macrocell index value according to default macrocell queueing discipline, configuration macrocell identification index table.Wherein, the macrocell sign can dispose at destination node, also can be that the little class cell detection of target reports destination node behind adjacent macro cell.

Wherein, the collocation method of macrocell queueing discipline and macrocell identification index table is identical with the collocation method of macrocell identification index table in the step 301 on the destination node, both can dispose by script, also can human configuration, and on the source node that configuration generates with destination node on macrocell identification index table in mapping relations must be identical, could after the Target cell set identification that receives the source node transmission, find corresponding little class set of cells at destination node like this.For example, if the macrocell identification index table that disposes on the source node is table 1, then the content of the macrocell identification index table that configuration obtains on the destination node is also with table 1.

402, the corresponding little class cell scrambling in little class residential quarter that destination node will be adjacent with described macrocell is mapped as corresponding scrambler index value, disposes described scrambler identification index table.

Concrete, destination node can be mapped as corresponding scrambler index value with little class cell scrambling according to default little class residential quarter queueing discipline, configuration scrambler identification index table.Wherein, little class cell scrambling can dispose at destination node, also can report to destination node little class residential quarter.

Wherein, the collocation method of little class residential quarter queueing discipline and scrambler identification index table is identical with the collocation method of scrambler identification index table in the step 302 on the destination node, and on the source node that configuration generates with destination node on macrocell identification index table in mapping relations must be identical, the embodiment of the invention will repeat no more here.For example, if the scrambler identification index table that disposes on the source node is table 2, then the content of the scrambler identification index table that configuration obtains on the destination node is also with table 2.

403, destination node according to described macrocell identify, little class cell scrambling of adjacent little class residential quarter, described scrambler identification index table and described macrocell identification index table, generate little class set of cells sign, according to little class cell ID and the described little class cell identification list of described little class set of cells sign configuration.

Wherein, destination node is inquired about scrambler identification index table and macrocell identification index table respectively according to little class cell scrambling and macrocell sign, obtains macrocell index value and scrambler index value, and combination generates little class set of cells sign.For example, table look-up according to macrocell sign 1 and 1 to obtain macrocell index value 0,000 0,000 0001, tabling look-up according to scrambler 11 obtains scrambler index value 0001, makes up two index values and generates Target cell set identifications 0,000 0,000 0,001 0001, is written in little class cell identification list.Simultaneously, little class cell ID 1 that little class residential quarter correspondence of this little class cell scrambling is provided also is written in the corresponding clauses and subclauses in little class cell identification list.

Table 5

In the present embodiment, step 401-403 has generated macrocell identification index table, scrambler identification index table and little class cell identification list for the relevant entries on the configuration destination node.Following step 404-409 has specifically described the flow process to little class cell identification list real-time update, and wherein step 404-407 is the operation that increases clauses and subclauses, and step 408 and 409 is operations of deletion clauses and subclauses:

404, when little class residential quarter increases, destination node adds the scrambler index value of described little class cell scrambling and correspondence in described scrambler concordance list, by the macrocell sign generation of the little class cell scrambling to be increased that receives and adjacent macro cell little class set of cells sign to be increased.

Wherein, after the start of base station, just increased new little class residential quarter, perhaps in little class cell detection when newly-increased adjacent macro cell is arranged, little class cell detection macrocell sign that should increase newly and scrambler and the little class cell ID that reports this residential quarter to destination node, destination node can add this little class residential quarter in little class cell identification list, upgrade little class cell identification list, simultaneously if described little class cell scrambling sign not in described scrambler identification index table, is added the scrambler index value of described little class cell scrambling and correspondence in described scrambler concordance list.This little class cell ID can be little class cell ID of 28 of broadcasting, also can be short sign, the described little class of the sign residential quarter that this little class cell ID or short sign can be unique.The method of little class set of cells sign that generation is to be increased is identical with the method for the little class set of cells sign of generation in the step 403, gives unnecessary details no longer in detail here.

405, destination node determines whether little class set of cells sign described to be increased has existed in described little class cell identification list, namely judge little class set of cells sign described to be increased whether with described little class cell identification list in arbitrary little class set of cells marking matched; If little class set of cells sign described to be increased is marking matched with arbitrary little class set of cells in described little class cell identification list, then execution in step 406; If the little class set of cells sign in little class set of cells sign described to be increased and the described little class cell identification list does not all match, then execution in step 407.

406, destination node adds little class cell ID to be increased in described little class set of cells to.

Wherein, if little class set of cells sign to be increased is one of existing little class set of cells sign in little class cell identification list, then little class cell ID is added in the corresponding clauses and subclauses, just increased little class residential quarter in little class set of cells of shared identical scrambler.For example, suppose that existing little class set of cells identifies 0,000 0,000 0001 in table 5, and existing little class cell ID 1, this moment, little class residential quarter 4 joined in the network, adds little class cell ID 4 and get final product in little class set of cells identifies the clauses and subclauses of 0,000 0,000 0001 correspondence.

407, destination node adds little class set of cells sign and corresponding little class cell ID described to be increased in described little class set of cells identification list.

Wherein, if little class set of cells to be increased is identified in little class cell identification list and does not have record, then increase clauses and subclauses and be used for storage little class residential quarter that little class set of cells identifies and this set comprises described to be increased.For example, suppose that little class set of cells to be increased is designated 0,000 0,000 0,002 0002, in table 5, do not have record, then increase new clauses and subclauses and store this little class set of cells sign to be increased, little class cell ID 5 of correspondence is added in the corresponding clauses and subclauses.

408, when reduce little class residential quarter, destination node generates little class set of cells sign to be deleted, deletion little class cell ID described to be deleted from little class set of cells of correspondence by the macrocell sign of the little class cell scrambling to be deleted that receives and adjacent macro cell.

Wherein, when little class residential quarter is closed or deleted, when perhaps the scrambler of little class residential quarter is revised, can also cooperate the flow process of little class residential quarter increase when revising for scrambler from little class cell identification list deletion this little class residential quarter, upgrade described little class cell identification list.The method of little class set of cells sign that generation is to be deleted is identical with the method for the little class set of cells sign of generation in the step 403, gives unnecessary details no longer in detail here.

Then, according to the described little class cell identification list of little class set of cells sign inquiry described to be deleted, determine in described little class cell identification list the little class set of cells sign that is complementary with little class set of cells sign described to be deleted.For example, when closing little class residential quarter 1, generate little class set of cells sign according to the scrambler of little class residential quarter 1 and the macrocell sign of adjacent macro cell, in table 5, find corresponding clauses and subclauses, the little class cell ID 1 of deletion from the set that little class cell ID constitutes.

Be understandable that what describe among the step 404-408 is little class residential quarter more new technological process to relevant entries when increasing or reducing, and when increasing or reducing for adjacent macro cell, also can upgrade relevant entries accordingly.Concrete: when adjacent macro cell increases, if described macrocell sign not in described macrocell identification index table, then is increased to described macrocell sign in the described macrocell identification index table; Generate little class set of cells sign to be increased according to the macrocell sign to be increased that receives and little class cell scrambling; If do not have little class set of cells sign described to be increased in described little class cell identification list, then little class cell ID to be increased added in described little class set of cells; If there has been little class set of cells sign described to be increased in described little class cell identification list, then in described little class set of cells identification list, add the corresponding little class cell ID of little class set of cells sign described to be increased.

When macrocell reduces, the little class set of cells sign to be deleted according to the scrambler sign generation of the adjacent macro cell to be deleted that receives and Microcell, deletion little class cell ID to be deleted from little class set of cells of correspondence.

In the present embodiment, step 401-408 is the pre-configured process of relevant entries on the destination node, below handover operation on the destination node is done specific descriptions:

409, the Target cell set identification of destination node reception sources node transmission.

Wherein, destination node receives request for building link message or the handover request message that source node sends, and obtains the Target cell set identification from this request for building link message or handover request message.

410, destination node is determined candidate's Target cell set according to little class cell identification list and described Target cell set identification, comprise little class cell ID of each little class residential quarter correspondence in little class set of cells sign and the corresponding little class set of cells in wherein said little class cell identification list, described little class set of cells be adjacent with same macrocell and the set of at least one little class residential quarter composition of shared identical scrambler.

Wherein, with the little class set of cells sign comparison in Target cell set identification and the little class cell identification list, the match is successful in little class set of cells sign in Target cell set identification and the little class cell identification list one, obtain the corresponding little class set of cells of little class set of cells sign of coupling, this little class set of cells is the Target cell set.For example, the Target cell set identification is 0,000 0,000 0,001 0001, and 5 Target cells that obtain shared Target cell scrambler of then tabling look-up are gathered, and little class cell ID that this Target cell set comprises is: little class cell ID 1 and little class cell ID 4.Identical scrambler is all shared in each little class residential quarter in the Target cell set, and little class cell range of candidate is dwindled, and following step 412 and 413 can select suitable little class residential quarter as Target cell from the Target cell set.

411, destination node sends the quality testing instruction to each the little class residential quarter in the described Target cell set, so that the quality of uplink signal of the to be switched UE of described little class cell detection.

Wherein, quality testing can be for estimating the service quality of little class residential quarter by to be switched UE quality of uplink signal, also can be according to the service quality of throughput, bandwidth or the little class of other parameter evaluations residential quarter, and the embodiment of the invention is not done restriction.For example, destination node determines that candidate's Target cell set is little class residential quarter 1 and little class residential quarter 4, to little class residential quarter 1 and little class residential quarter 4 the quality testing instruction takes place respectively.

412, destination node receives the quality testing result of described little class residential quarter feedback, according to described quality testing select target residential quarter as a result.

Wherein, after each the little class residential quarter in the Target cell set receives the quality testing instruction, detect the quality of uplink signal of UE respectively.The quality testing result that little class residential quarter can obtain detection reports destination node, selects little class residential quarter of quality of uplink signal the best as Target cell by destination node according to the quality testing result.Also can pass judgment on the quality testing result that detection obtains little class residential quarter, pre-establishes the threshold value of signal quality, if quality of uplink signal is lower than the thresholding of appointment, then not to destination node feedback quality testing result; If quality of uplink signal is higher than the thresholding of appointment, just to destination node feedback quality testing result.

413, destination node sends request for building link message to described Target cell, finishes follow-up switching flow.

Wherein, the same in follow-up switching flow and the prior art, destination node sends request for building link message to Target cell, after Target cell and UE carry out repeatedly information interaction, UE switched in the Target cell works on.

Need to prove, described source node and destination node can be radio network controller (Radio Network Controller, RNC) or little class gateway, for example Microcell gateway, picocell gateway, Femto cell gateway, home gateway etc.The specific descriptions of part steps can be with reference to corresponding content in the other embodiments of the invention in the embodiment of the invention, and the embodiment of the invention will be given unnecessary details here no longer one by one.

Another embodiment of the present invention provides a kind of changing method, and source node and destination node are same node in the present embodiment, namely finishes switching at a node.As shown in Figure 6, this method comprises:

501, according to default macrocell queueing discipline, the macrocell sign is mapped as corresponding macrocell index value, configuration macrocell identification index table.

502, according to default little class residential quarter queueing discipline, little class cell scrambling is mapped as corresponding scrambler index value, configuration scrambler identification index table.

503, the macrocell according to little class cell scrambling and adjacent macro cell correspondence identifies, inquire about described scrambler identification index table and described macrocell identification index table respectively and generate little class set of cells sign, dispose little class cell identification list according to described little class set of cells sign and described little class cell ID.

In the present embodiment, step 501-503 is pre-configured relevant entries and generate the process of Target cell set identification on RNC or gateway, has disposed scrambler identification index table and macrocell identification index table at node, has also disposed little class cell identification list.Like this, switch when node receives the quality testing report of UE and begins to carry out, in the process of switching, look into Neighboring Cell List and find that destination node is exactly current source node, just can directly inquire about little class cell identification list, determine the Target cell set and finish switching.Below handover operation on the same node is done specific descriptions:

504, receive the quality testing report that user equipment (UE) sends, comprise the Target cell scrambler in the described quality testing report.

505, according to the pre-configured scrambler identification index table of described Target cell scrambler inquiry, determine target scrambler index value, comprise the scrambler index value of little class cell scrambling and each little class cell scrambling correspondence in the wherein said scrambler identification index table.

506, according to the pre-configured macrocell identification index table of service macrocell sign inquiry of described UE, determine service macrocell index value, comprise macrocell sign and the corresponding macrocell index value of each macrocell sign in the wherein said macrocell identification index table.

507, generate the Target cell set identification by described target scrambler index value and service macrocell index value.

508, determine that source node and destination node are same nodes.

In the present embodiment, the operation of step 504-507 belongs to the function of source node, in step 508 since this destination node information points be present node, so present node should carry out the function of source node, carries out the function of destination node again.Because source node and destination node are same nodes, therefore can remove the forwarding step of Target cell set identification from, directly execution in step 509.

509, according to the pre-configured little class cell identification list of described Target cell set identification inquiry, determine the Target cell set, the little class cell ID that comprises each little class residential quarter correspondence in little class set of cells sign and the corresponding little class set of cells in wherein said little class cell identification list, the set that described little class set of cells is formed at least one little class residential quarter of sharing identical scrambler.

510, each the little class residential quarter in the set of described Target cell sends quality testing instruction, so that the quality of uplink signal of the to be switched UE of described little class cell detection.

511, receive the quality testing result of described little class residential quarter feedback, according to described quality testing select target residential quarter as a result.

512, send request for building link message to described Target cell, finish follow-up switching flow.

In the present embodiment, the operation of step 509-512 belongs to the function of destination node, finishes the relevant handover operation of source node and destination node at same node, realizes the switching from the service macrocell of present node to little class residential quarter of this node with UE.

Need to prove that the specific descriptions of part steps can be with reference to corresponding content in the other embodiments of the invention in the embodiment of the invention, the embodiment of the invention will be given unnecessary details here no longer one by one.

The changing method that the embodiment of the invention provides, service macrocell sign and Target cell scrambler according to UE generate the Target cell set identification, determine candidate's Target cell set according to this Target cell set identification, and then from the Target cell set, filter out Target cell, compare as the method for Target cell with little class residential quarter that one of stochastic searching in the prior art is corresponding with scrambler, can dwindle the scope of candidate's Target cell, improve the efficient that switch the residential quarter, and can from the Target cell set, filter out satisfactory Target cell, improve the residential quarter success rate for switching.

Another embodiment of the present invention provides a kind of source node, as shown in Figure 7, comprising: Target cell set identification unit 61, transmitting element 62.

Target cell set identification unit 61 is used for determining the Target cell set identification according to the Target cell scrambler of the measurement report of user equipment (UE).

Transmitting element 62 is used for the described Target cell set identification that described Target cell set identification unit 61 generates is sent to destination node, so that described destination node is determined candidate's Target cell set according to described Target cell set identification.

As shown in Figure 8, implement in the scene at the another kind of the embodiment of the invention, described Target cell set identification unit 61 also can be used for: receive the measurement report of UE, obtain the Target cell set identification according to the Target cell scrambler in the described measurement report from Neighboring Cell List.

This source node also can comprise: webmaster acquiring unit 63, Neighboring Cell List dispensing unit 64.

Webmaster acquiring unit 63, the measurement report that is used for the 61 reception UE in described Target cell set identification unit, from Neighboring Cell List, obtain before the Target cell set identification according to the Target cell scrambler in the described measurement report, receive the Target cell set identification of little class cell scrambling correspondence from network management system.

Neighboring Cell List dispensing unit 64, be used for before described Target cell set identification unit 61 obtains the Target cell set identification from Neighboring Cell List, according to macrocell sign, little class residential quarter corresponding little class cell scrambling, described macrocell identification index table and the described scrambler identification index table adjacent with described macrocell, generate little class set of cells sign, configuring neighbor cell list comprises the corresponding little class set of cells sign of the corresponding little class cell scrambling in the little class residential quarter adjacent with macrocell and described little class cell scrambling in the described Neighboring Cell List.

As shown in Figure 9, implement in the scene at the another kind of the embodiment of the invention, described Target cell set identification unit 61 also can be used for: generate the Target cell set identification according to Target cell scrambler and service macrocell sign.

Further, described Target cell set identification unit 61 can comprise: receiver module 611, target scrambler index value module 612, service macrocell index value module 613, Target cell set identification module 614.

Receiver module 611 is used for receiving the measurement report that user equipment (UE) sends, and comprises the Target cell scrambler in the described measurement report.

Target scrambler index value module 612, be used for scrambler identification index table and described Target cell scrambler according to described receiver module 611 receptions, determine target scrambler index value, comprise the scrambler index value of little class cell scrambling and little class cell scrambling correspondence in the wherein said scrambler identification index table.

Service macrocell index value module 613, be used for determining service macrocell index value according to the service macrocell sign of macrocell identification index table and described UE, comprise macrocell sign and the corresponding macrocell index value of macrocell sign in the wherein said macrocell identification index table.

Target cell set identification module 614, the described target scrambler index value and the definite described service macrocell index value of described service macrocell index value module that are used for being determined by described target scrambler index value module generate the Target cell set identification.

Further, this source node also comprises: macrocell identification index table dispensing unit 65, scrambler identification index table dispensing unit 66.

Macrocell identification index table dispensing unit 65, be used for before described Target cell set identification unit 61 is according to Target cell scrambler and service macrocell sign generation Target cell set identification, the macrocell sign is mapped as corresponding macrocell index value, disposes described macrocell identification index table.

Scrambler identification index table dispensing unit 66 is used for little class cell scrambling is mapped as corresponding scrambler index value, disposes described scrambler identification index table.

Wherein, described source node is radio network controller (RNC) or little class gateway.

The embodiment of the invention provides a kind of destination node again, as shown in figure 10, comprising: Target cell set determining unit 71, Target cell selected cell 72.

Target cell set determining unit 71 is used for the Target cell set identification that the reception sources node sends, and determines candidate's Target cell set according to described Target cell set identification.

Target cell selected cell 72 is used for gathering the select target residential quarter at the described Target cell that described Target cell set determining unit 71 is determined, finishes switching flow.

Further, as shown in figure 11, described Target cell set determining unit 71 comprises: receiver module 711, Target cell set determination module 712.

Receiver module 711 is used for the Target cell set identification that the reception sources node sends.

Target cell set determination module 712, be used for determining the Target cell set according to the described Target cell set identification of little class cell identification list and 711 receptions of described receiver module, comprise little class cell ID of each little class residential quarter correspondence in little class set of cells sign and the corresponding little class set of cells in wherein said little class cell identification list, described little class set of cells be adjacent with same macrocell and the set of at least one little class residential quarter composition of shared identical scrambler.

Further, this destination node also comprises: macrocell identification index table dispensing unit 73, scrambler identification index table dispensing unit 74, little class cell identification list dispensing unit 75.

Macrocell identification index table dispensing unit 73, be used for the Target cell set identification in the transmission of described Target cell set determining unit 71 reception sources nodes, determine before the Target cell set according to described Target cell set identification, the macrocell sign is mapped as corresponding macrocell index value, configuration macrocell identification index table.

Scrambler identification index table dispensing unit 74, be used for will be adjacent with described macrocell the corresponding little class cell scrambling in little class residential quarter be mapped as corresponding scrambler index value, dispose scrambler identification index table.

Little class cell identification list dispensing unit 75, be used for according to described macrocell sign, little class cell scrambling of adjacent little class residential quarter, described scrambler identification index table and described macrocell identification index table, generate little class set of cells sign, according to little class cell ID and the described little class cell identification list of described little class set of cells sign configuration.

Further, this destination node also comprises: increase unit 76.

Increase unit 76, when being used for increasing in little class residential quarter, generating little class set of cells to be increased by the macrocell sign of the little class cell scrambling to be increased that receives and adjacent macro cell and identify.

Described increase unit 76 also is used in described little class cell scrambling sign during not at described scrambler identification index table, adds described little class cell scrambling and corresponding scrambler index value in described scrambler concordance list.

Described increase unit 76 also is used for when described little class cell identification list exists little class set of cells described to be increased to identify little class cell ID to be increased being added in described little class set of cells.

Described increase unit 76, also be used for when described little class cell identification list does not exist little class set of cells described to be increased to identify, in described little class set of cells identification list, adding little class set of cells sign and corresponding little class cell ID described to be increased.

Further, this destination node also comprises: delete cells 77.

Delete cells 77, when being used for reducing in little class residential quarter, macrocell sign by the little class cell scrambling to be deleted that receives and adjacent macro cell generates little class set of cells sign to be deleted, deletion little class cell ID to be deleted from little class set of cells of correspondence.

Further, described Target cell selected cell 72 comprises: detection module 721, selection module 722, handover module 723.

Detection module 721 is used for sending the quality testing instruction to each little class residential quarter of described Target cell set, so that the quality of uplink signal of the to be switched UE of described little class cell detection.

Select module 722, be used for receiving the quality testing result of described little class residential quarter feedback, according to described quality testing select target residential quarter as a result.

Handover module 723 is used for sending request for building link message to described Target cell, finishes follow-up switching flow.

Further, described destination node is the gateway of radio network controller (RNC) or little class residential quarter.

Need to prove, in the source node that provides in the embodiment of the invention and the destination node specific descriptions of part functional module can reference example 1-embodiment 3 in corresponding content, the embodiment of the invention will be given unnecessary details here no longer one by one.

Another embodiment of the present invention also provides a kind of switched system, as shown in figure 12, comprising: source node 81 and destination node 82.

Described source node 81 is used for generating the Target cell set identification according to Target cell scrambler and service macrocell sign; Described Target cell set identification is sent to destination node 82, so that described destination node 82 is determined candidate's Target cell set according to described Target cell set identification.

Described destination node 82 is used for the Target cell set identification that reception sources node 81 sends, and determines candidate's Target cell set according to described Target cell set identification; Switching flow is finished in select target residential quarter in described Target cell set.

Need to prove that the specific descriptions of partial devices can be with reference to the corresponding content in the other embodiments of the invention in the switched system that provides in the embodiment of the invention, the embodiment of the invention will be given unnecessary details here no longer one by one.

The changing method that a plurality of embodiment of the present invention provides, source node, destination node and switched system, determine the Target cell set identification according to the Target cell scrambler in the measurement report of UE, determine candidate's Target cell set according to this Target cell set identification, and then from the Target cell set, filter out Target cell, compare as the technology of Target cell with little class residential quarter that one of stochastic searching in the prior art is corresponding with scrambler, can dwindle the scope of candidate's Target cell, improve the efficient that switch the residential quarter, and can from the Target cell set, filter out satisfactory Target cell, improve the residential quarter success rate for switching.

The those skilled in the art can be well understood to, be the convenience described and succinct, only the division with above-mentioned each functional module is illustrated, in the practical application, can as required the above-mentioned functions distribution be finished by different functional modules, the internal structure that is about to device is divided into different functional modules, to finish all or part of function described above.The system of foregoing description, the concrete course of work of device and unit can not repeat them here with reference to the corresponding process among the preceding method embodiment.

In several embodiment that the application provides, should be understood that, disclosed system, apparatus and method can realize by other mode.For example, device embodiment described above only is schematic, for example, the division of described module or unit, only be that a kind of logic function is divided, during actual the realization other dividing mode can be arranged, for example a plurality of unit or assembly can in conjunction with or can be integrated into another system, or some features can ignore, or do not carry out.Another point, the shown or coupling each other discussed or directly to be coupled or to communicate to connect can be by some interfaces, the indirect coupling of device or unit or communicate to connect can be electrically, machinery or other form.

Described unit as separating component explanation can or can not be physically to separate also, and the parts that show as the unit can be or can not be physical locations also, namely can be positioned at a place, perhaps also can be distributed on a plurality of network element.Can select wherein some or all of unit to realize the purpose of present embodiment scheme according to the actual needs.

In addition, each functional unit in each embodiment of the present invention can be integrated in the processing unit, also can be that the independent physics in each unit exists, and also can be integrated in the unit two or more unit.Above-mentioned integrated unit both can adopt the form of hardware to realize, also can adopt the form of SFU software functional unit to realize.

If described integrated unit is realized with the form of SFU software functional unit and during as independently production marketing or use, can be stored in the computer read/write memory medium.Based on such understanding, part or all or part of of this technical scheme that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium, comprise that some instructions are with so that a computer equipment (can be personal computer, server, the perhaps network equipment etc.) or processor (processor) carry out all or part of step of the described method of each embodiment of the present invention.And aforesaid storage medium comprises: various media that can be program code stored such as USB flash disk, portable hard drive, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD.

The above, above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.

Claims

1. A switching method, characterized in that, comprising:

Determine the target cell set identity according to the target cell scrambling code in the measurement report of the user equipment UE.

Sending the target cell set identifier to a target node, so that the target node determines a candidate target cell set according to the target cell set identifier.

2. The method according to claim 1, wherein the determining the set identity of the target cell according to the target cell scrambling code in the measurement report of the user equipment UE comprises:

The measurement report of the UE is received, and the set identifier of the target cell is obtained from the neighbor cell list according to the scrambling code of the target cell in the measurement report.

3. The method according to claim 2, characterized in that, before receiving the measurement report of the UE, and obtaining the target cell set identity from the neighbor list according to the target cell scrambling code in the measurement report, further comprising:

Receive the target cell set identifier corresponding to the micro-cell scrambling code from the network management system.

4. The method according to claim 2, wherein, before obtaining the target cell set identity from the neighbor list, further comprising:

According to the macro cell ID, the micro cell scrambling code corresponding to the micro cell adjacent to the macro cell, the macro cell ID index table and the scrambling code ID index table, generate a micro cell set ID, and configure neighboring cells The neighbor cell list includes the micro cell scrambling code corresponding to the micro cell adjacent to the macro cell and the micro cell set identifier corresponding to the micro cell scrambling code.

5. The method according to claim 1, wherein determining the set identity of the target cell according to the scrambling code of the target cell in the measurement report of the UE comprises:

A measurement report of the UE is received, and a target cell set identifier is generated according to the target cell scrambling code and the serving macro cell identifier in the measurement report.

6. The method according to claim 5, wherein the generating the target cell set identity according to the target cell scrambling code and the serving macro cell identity in the measurement report comprises:

receiving a measurement report from the UE, where the measurement report includes the scrambling code of the target cell;

Determine the target scrambling code index value according to the scrambling code identification index table and the target cell scrambling code in the measurement report, wherein the scrambling code identification index table includes the micro-cell scrambling code and the scrambling code index corresponding to the micro-cell scrambling code value;

Determine the serving macro cell index value according to the cell identity index table and the serving macro cell identity of the UE, where the macro cell identity index table includes the macro cell identity and the macro cell index value corresponding to the macro cell identity;

Generate a target cell set identifier according to the target scrambling code index value and the serving macro cell index value.

7. The method according to claim 6, further comprising: before generating the target cell set identity according to the target cell scrambling code and the serving macro cell identity:

Mapping the macro cell identifier to a corresponding macro cell index value, and configuring the macro cell identifier index table;

Map the scrambling codes of the micro-cells to corresponding scrambling code index values, and configure the scrambling code identification index table.

8. The method according to any one of claims 1-7, wherein the node is a radio network controller (RNC) or a gateway of a micro cell.

9. A switching method, characterized in that, comprising:

receiving the target cell set identifier sent by the source node, and determining a candidate target cell set according to the target cell set identifier;

Select a target cell from the set of target cells to complete the handover procedure.

10. The method according to claim 9, wherein the receiving the target cell set identifier sent by the source node, and determining the target cell set according to the target cell set identifier comprises:

receiving the set identifier of the target cell sent by the source node;

Determine a candidate target cell set according to the micro-cell identity list and the target cell set identity, wherein the micro-cell identity list includes the micro-cell set identity and the corresponding micro-cell set in the corresponding micro-cell set A micro-cell identifier, the set of micro-cells is a set of at least one micro-cell adjacent to the same macro cell and sharing the same scrambling code.

11. The method according to claim 10, characterized in that, before receiving the target cell set identifier sent by the source node, and determining the target cell set according to the target cell set identifier, further comprising:

Map the macro cell ID to the corresponding macro cell index value, and configure the macro cell ID index table;

Mapping the micro-cell scrambling code corresponding to the micro-cell adjacent to the macro cell to a corresponding scrambling code index value, and configuring a scrambling code identification index table;

According to the macro cell ID, the micro cell scrambling code of the adjacent micro cell, the scrambling code ID index table and the macro cell ID index table, generate a micro cell set ID, and according to the micro cell ID and the The micro-cell set ID configures the micro-cell ID list.

12. The method of claim 11, further comprising:

When the micro-cell is added, if the micro-cell scrambling code identifier is not in the scrambling code identifier index table, add the micro-cell scrambling code and the corresponding scrambling code index value to the scrambling code index table;

Generate the set identifier of the micro-cell to be added from the received scrambling code of the micro-cell to be added and the macro-cell identifier of the adjacent macro-cell;

If the micro-cell set identifier to be added does not exist in the micro-cell identifier list, add the micro-cell identifier to be added to the micro-cell set;

Or, if the micro-cell set ID to be added already exists in the micro-cell ID list, add the micro-cell set ID to be added and the corresponding micro-cell set ID to the micro-cell set ID list. Class cell ID.

13. The method of claim 11, further comprising:

When the number of micro-cells decreases, according to the received scrambling code of the micro-cells to be deleted and the macro-cell identification of the adjacent macro-cell, the set identification of the micro-cells to be deleted is generated, and the set of micro-cells to be deleted is deleted from the corresponding set of micro-cells. Micro cell ID.

14. The method of claim 11, further comprising:

When an adjacent macro cell is added, if the macro cell ID is not in the macro cell ID index table, add the macro cell ID to the macro cell ID index table;

Generate a micro-cell set identity to be added according to the received macro-cell identity to be added and the micro-cell scrambling code;

If the micro-cell set ID to be added already exists in the micro-cell ID list, add the micro-cell ID corresponding to the micro-cell set ID to be added in the micro-cell set ID list .

15. The method of claim 11, further comprising:

When the number of macro cells decreases, according to the received scrambling code identifiers of adjacent macro cells and micro cells to be deleted, generate a micro-cell set ID to be deleted, and delete the micro-cell ID to be deleted from the corresponding micro-cell set .

16. The method according to claim 9, wherein the selecting a target cell in the set of target cells to complete the handover procedure comprises:

Sending a quality detection instruction to each micro cell in the target cell set, so that the micro cell detects the uplink signal quality of the UE to be handed over;

receiving the quality inspection result fed back by the micro-type cell, and selecting a target cell according to the quality inspection result;

Sending a link establishment request message to the target cell to complete the subsequent handover procedure.

17. A source node, comprising:

The target cell set identification unit is used to determine the target cell set identification according to the target cell scrambling code in the measurement report of the user equipment UE;

A sending unit, configured to send the target cell set identifier generated by the target cell set identifier unit to a target node, so that the target node determines a candidate target cell set according to the target cell set identifier.

18. The source node according to claim 17, wherein the target cell set identification unit is further configured to: receive the measurement report of the UE, and obtain the target cell scrambling code from the neighbor list according to the measurement report Target cell set ID.

19. The source node according to claim 18, further comprising:

The network management obtaining unit is used to receive the measurement report of the UE from the target cell set identification unit, and receive the micro-type cell from the network management system before obtaining the target cell set identification from the neighbor list according to the target cell scrambling code in the measurement report The set identifier of the target cell corresponding to the scrambling code.

20. The source node according to claim 18, further comprising:

A neighboring cell list configuration unit, configured to, before the target cell set identification unit obtains the target cell set identification from the neighboring cell list, according to the macro cell identification, the micro cell interference corresponding to the micro cell adjacent to the macro cell code, the macro cell identification index table, and the scrambling code identification index table, generate a micro cell set ID, configure a neighbor list, and the neighbor list includes the micro class corresponding to the micro cell adjacent to the macro cell A cell scrambling code and a micro-cell set identifier corresponding to the micro-cell scrambling code.

21. The source node according to claim 17, wherein the target cell set identifier unit is further configured to: generate a target cell set identifier according to the target cell scrambling code and the serving macro cell identifier.

22. The source node according to claim 21, wherein the target cell set identification unit comprises:

A receiving module, configured to receive a measurement report sent by a user equipment UE, where the measurement report includes a target cell scrambling code;

A target scrambling code index value module, configured to determine a target scrambling code index value according to the scrambling code identification index table received by the receiving module and the target cell scrambling code, wherein the scrambling code identification index table includes a micro-type cell scrambling code code and the scrambling code index value corresponding to the micro-cell scrambling code;

The serving macro cell index value module is configured to determine the serving macro cell index value according to the macro cell identity index table and the serving macro cell identity of the UE, wherein the macro cell identity index table includes the macro cell identity and the macro cell identity corresponding to the macro cell identity Cell index value;

A target cell set identifier module, configured to generate a target cell set identifier according to the target scrambling code index value determined by the target scrambling code index value module and the serving macro cell index value determined by the serving macro cell index value module.

23. The source node according to claim 22, further comprising:

A macro cell identity index table configuration unit, configured to map the macro cell identity to a corresponding macro cell index value before the target cell set identity unit generates the target cell set identity according to the target cell scrambling code and the serving macro cell identity, and configure the The macro cell identification index table;

The scrambling code identification index table configuration unit maps the micro-cell scrambling codes to corresponding scrambling code index values, and configures the scrambling code identification index table.

24. The source node according to any one of claims 17-23, wherein the source node is a radio network controller (RNC) or a gateway of a micro cell.

25. A target node, characterized in that it comprises:

A target cell set determining unit, configured to receive the target cell set identifier sent by the source node, and determine a candidate target cell set according to the target cell set identifier;

a target cell selection unit, configured to select a target cell from the target cell set determined by the target cell set determination unit, and complete the handover procedure.

26. The target node according to claim 25, wherein the target cell set determining unit comprises:

A receiving module, configured to receive the set identifier of the target cell sent by the source node;

A target cell set determination module, configured to determine a target cell set according to the micro-cell identity list and the target cell set identity received by the receiving module, wherein the micro-cell identity list includes the micro-cell set identity and the corresponding A micro-cell identifier corresponding to each micro-cell in the micro-cell set, where the micro-cell set is a set composed of at least one micro-cell adjacent to the same macro cell and sharing the same scrambling code.

27. The target node according to claim 26, further comprising:

A macro cell identity index table configuration unit, configured to map the macro cell identity to a corresponding macro cell identity before the target cell set determining unit receives the target cell set identity sent by the source node and determines the target cell set according to the target cell set identity Cell index value, configure the macro cell identification index table;

A scrambling code identification index table configuration unit, which maps the micro-cell scrambling code corresponding to the micro-cell adjacent to the macro cell to a corresponding scrambling code index value, and configures the scrambling code identification index table;

A micro-cell identification list configuration unit, configured to generate a micro-cell set according to the macro-cell identification, the micro-cell scrambling code of an adjacent micro-cell, the scrambling code identification index table, and the macro-cell identification index table ID, configuring the micro-cell ID list according to the micro-cell ID and the micro-cell set ID.

28. The target node according to claim 27, further comprising:

The adding unit is used to generate the micro-cell set identifier to be added according to the received scrambling code of the micro-cell to be added and the macro-cell identifier of the adjacent macro-cell when the micro-cell is added;

If the micro-cell scrambling code identifier is not in the scrambling code identifier index table, add the micro-cell scrambling code and the corresponding scrambling code index value to the scrambling code index table;

If the micro-cell set identifier to be added exists in the micro-cell identifier list, adding the micro-cell identifier to be added to the micro-cell set;

If the micro-cell set ID to be added does not exist in the micro-cell ID list, add the micro-cell set ID to be added and the corresponding micro-cell in the micro-cell set ID list logo.

29. The target node according to claim 27, further comprising:

The deletion unit is configured to generate a micro-cell set identifier to be deleted according to the received scrambling code of the micro-cell to be deleted and the macro-cell identifier of the adjacent macro-cell when the number of micro-cells is reduced, and select from the corresponding micro-cell set Delete the ID of the micro-cell to be deleted.

30. The target node according to claim 25, wherein the target cell selection unit comprises:

A detection module, configured to send a quality detection instruction to each micro-type cell in the target cell set, so that the micro-type cell detects the uplink signal quality of the UE to be handed over;

A selection module, configured to receive the quality detection result fed back by the micro-cell, and select a target cell according to the quality detection result;

A handover module, configured to send a link establishment request message to the target cell to complete subsequent handover procedures.

31. The target node according to any one of claims 25-30, wherein the target node is a radio network controller (RNC) or a gateway of a micro cell.

32. A switching system, comprising:

A source node as claimed in any one of claims 17-24; and

A target node as claimed in any one of claims 25-31.