CN102595473B

CN102595473B - Measuring method, positioning server and user equipment

Info

Publication number: CN102595473B
Application number: CN201210039468.2A
Authority: CN
Inventors: 刘劲楠
Original assignee: Huawei Technologies Co Ltd
Current assignee: Liu Jing
Priority date: 2012-02-21
Filing date: 2012-02-21
Publication date: 2014-12-10
Anticipated expiration: 2032-02-21
Also published as: CN102595473A

Abstract

The embodiment of the invention provides a measuring method, a positioning server and user equipment. The method comprises the following steps that: the positioning server obtains respective TA values of at least two service cells determined for the user equipment by a macro base station and at least one micro base station; the positioning server selects the service cell corresponding to the minimal TA value in the TA values as a reference cell; the positioning server generates first exceptedRSTD according to the position information of the base station of the reference cell and the position information of the base station to which a non-reference cell capable of serving the user equipment belongs, and generates a first expectedRSTD-Uncertainty according to the selected TA value; and the positioning server sends positioning auxiliary data message to the user equipment, wherein the positioning auxiliary data message comprises the first exceptedRSTD and the first expectedRSTD-Uncertainty to enable the user equipment to measure the RSTD of the non-reference cell according to the first exceptedRSTD and the first expectedRSTD-Uncertainty. The embodiment of the invention enables the user equipment to measure the RSTD of the non-reference cell, and the method is simple and liable to realize, so that the measuring efficiency is effectively improved.

Description

Method of measurement and location-server, subscriber equipment

Technical field

The present invention relates to the communication technology, relate in particular to a kind of method of measurement and location-server, subscriber equipment.

Background technology

There is carrier aggregation (Carrier Aggregation, abbreviation CA) in the isomery scene of the wireless communication system of characteristic, subscriber equipment can (be operated in the base station on different carrier by current a plurality of Serving cells and a plurality of base station for subscriber equipment service, as macro base station and at least one micro-base station) communicate, be that subscriber equipment can send to macro base station or the micro-base station under each Serving cell by upward signal by each Serving cell, and can also from macro base station or micro-base station under each Serving cell, receive downstream signal by each Serving cell.In order to guarantee that subscriber equipment passes through upward signal that each Serving cell sends and can synchronously arrive macro base station or the micro-base station under each Serving cell, timing advance (Timing Advance the is called for short TA) value of each Serving cell can be determined for subscriber equipment in each macro base station or micro-base station.Because the coverage of different base station differs greatly, and non-same location, may cause differ greatly the pre-set time of upward signal, therefore, different base station can be the different timing advance TA value of same user equipment allocation.

Prior art, as Long Term Evolution (Long Term Evolution, be called for short LTE) support multiple based on subscriber equipment (User Equipment, abbreviation UE) locate mode, wherein that observable arrives time difference (an Observed Time Difference of Arrival is called for short OTDOA) localization method.For supporting OTDOA localization method, increased location reference signals (Position Reference Signal is called for short PRS).OTDOA localization method is to issue OTDOA assistance messages by network, by UE, completes some complementary measurements.Measure PRS/ cell reference signals (Cell Specific Reference Signal, abbreviation CRS) the time of advent is poor, and will measure reference signal time difference (Reference Signal Time Difference, abbreviation RSTD) report to network side, U E position calculation is carried out at terminal positioning center (Enhanced Serving Mobile Location Centre is called for short E-SMLC) by the enhancing of network side.Yet when a plurality of communities may exist different TA, not providing in prior art how above-mentioned subscriber equipment to measure can be the RSTD of a plurality of communities (Serving cell and non-service cell) of subscriber equipment service.

Summary of the invention

The invention provides a kind of method of measurement and location-server, subscriber equipment, in order to realize subscriber equipment, in the isomery scene of wireless communication system, measure the RSTD of non-reference cell.

Provide a kind of method of measurement on the one hand, be applied in the isomery scene of wireless communication system, described method comprises:

Location-server obtains macro base station and at least one micro-base station is at least two definite Serving cells of subscriber equipment TA values separately;

Described location-server, in described TA value, selects Serving cell corresponding to minimum TA value as with reference to community;

Described location-server is according to the positional information of base station under described reference cell and can be the positional information of base station under the non-reference cell of described subscriber equipment service, generate an expectedRSTD, and according to the TA value of selecting, generate an expectedRSTD-Uncertainty;

Described location-server sends positioning assistance data message to described subscriber equipment, in described positioning assistance data message, comprise a described expectedRSTD and a described expectedRSTD-Uncertainty, so that described subscriber equipment is measured the RSTD of described non-reference cell according to a described expectedRSTD and a described expectedRSTD-Uncertainty.

A kind of method of measurement is provided on the other hand, has been applied in the isomery scene of wireless communication system, described method comprises:

Subscriber equipment receives the positioning assistance data message that location-server sends, and comprises an expectedRSTD and an expectedRSTD-Uncertainty in described positioning assistance data message; A described expectedRSTD is that described location-server obtains macro base station and at least one micro-base station is at least two definite Serving cells of described subscriber equipment TA values separately, and in described TA value, select Serving cell corresponding to minimum TA value as with reference to community, according to the positional information of base station under described reference cell with can be that the positional information of base station generates under the non-reference cell of described subscriber equipment service; A described expectedRSTD-Uncertainty is that described location-server generates according to the TA value of selecting;

Described subscriber equipment, according to a described expectedRSTD and a described expectedRSTD-Uncertainty, is measured the RSTD of described non-reference cell.

Subscriber equipment receives the first positioning assistance data message that location-server sends, and in described the first location assistance messages, comprises an expectedRSTD and an expectedRSTD-Uncertainly;

If a described expectedRSTD-Uncertainly is greater than arbitrary TA value that described subscriber equipment obtains, or the CP value sum of arbitrary TA value and reference signal, described subscriber equipment sends positioning assistance data request message to described location-server, comprises Serving cell sign corresponding to TA value minimum in the TA value of described subscriber equipment acquisition in described positioning assistance data request message;

Described subscriber equipment receives the second positioning assistance data message that described location-server sends, and in described the second location assistance messages, comprises the 2nd expectedRSTD and the 2nd expectedRSTD-Uncertainly; To be described location-server select described Serving cell to identify corresponding Serving cell as with reference to community according to described positioning assistance data request message to described the 2nd expectedRSTD, according to the positional information of base station under described reference cell with can be that the positional information of base station generates under the non-reference cell of described subscriber equipment service; Described the 2nd expectedRSTD-Uncertainly is that described location-server generates according to the TA value of described reference cell;

Described subscriber equipment, according to described the 2nd expectedRSTD and described the 2nd expectedRSTD-Uncertainty, is measured the RSTD of described non-reference cell.

Location-server sends the first positioning assistance data message to subscriber equipment, in described the first location assistance messages, comprises an expectedRSTD and an expectedRSTD-Uncertainly;

Described location-server receives the positioning assistance data request message that described subscriber equipment sends, in described positioning assistance data request message, comprise Serving cell sign corresponding to TA value minimum in the TA value of described subscriber equipment acquisition, described positioning assistance data request message is greater than at a described expectedRSTD-Uncertainty arbitrary TA value that described subscriber equipment obtains by described subscriber equipment, or sends during the CP value sum of arbitrary TA value and reference signal;

Described location-server is according to described positioning assistance data request message, select described Serving cell to identify corresponding Serving cell as with reference to community, according to the positional information of base station under described reference cell with can be that the positional information of base station generates the 2nd expectedRSTD under the non-reference cell of described subscriber equipment service, and according to the TA value of described reference cell, generate described the 2nd expectedRSTD-Uncertainly;

Described location-server sends the second positioning assistance data message to described subscriber equipment, in described the second location assistance messages, comprise described the 2nd expectedRSTD and described the 2nd expectedRSTD-Uncertainly, so that described subscriber equipment is measured the RSTD of described non-reference cell according to described the 2nd expectedRSTD and described the 2nd expectedRSTD-Uncertainty.

A kind of location-server is provided on the other hand, has been applied in the isomery scene of wireless communication system, described location-server comprises:

Obtaining unit, is at least two definite Serving cells of subscriber equipment TA values separately for obtaining macro base station and at least one micro-base station;

Selected cell, in described TA value, selects Serving cell corresponding to minimum TA value as with reference to community;

Generation unit, for according to the positional information of base station under described reference cell with can be the positional information of base station under the non-reference cell of described subscriber equipment service, generate an expectedRSTD, and the TA value of selecting according to described selected cell 22, generate an expectedRSTD-Uncertainty;

Transmitting element, for sending positioning assistance data message to described subscriber equipment, in described positioning assistance data message, comprise a described expectedRSTD and a described expectedRSTD-Uncertainty, so that described subscriber equipment is measured the RSTD of described non-reference cell according to a described expectedRSTD and a described expectedRSTD-Uncertainty.

A kind of subscriber equipment is provided on the other hand, has been applied in the isomery scene of wireless communication system, described subscriber equipment comprises:

Receiving element, the positioning assistance data message sending for receiving location-server, comprises an expectedRSTD and an expectedRSTD-Uncertainty in described positioning assistance data message; A described expectedRSTD is that described location-server obtains macro base station and at least one micro-base station is at least two definite Serving cells of described subscriber equipment TA values separately, and in described TA value, select Serving cell corresponding to minimum TA value as with reference to community, according to the positional information of base station under described reference cell with can be that the positional information of base station generates under the non-reference cell of described subscriber equipment service; A described expectedRSTD-Uncertainty is that described location-server generates according to the TA value of selecting;

Measuring unit, for according to a described expectedRSTD and a described expectedRSTD-Uncertainty, measures the RSTD of described non-reference cell.

The first receiving element, the first positioning assistance data message sending for receiving location-server, comprises an expectedRSTD and an expectedRSTD-Uncertainly in described the first location assistance messages;

Request unit, if be greater than for a described expectedRSTD-Uncertainly arbitrary TA value that described subscriber equipment obtains, or the CP value sum of arbitrary TA value and reference signal, to described location-server, send positioning assistance data request message, in described positioning assistance data request message, comprise Serving cell sign corresponding to TA value minimum in the TA value of described subscriber equipment acquisition;

The second receiving element, the second positioning assistance data message sending for receiving described location-server, comprises the 2nd expectedRSTD and the 2nd expectedRSTD-Uncertainly in described the second location assistance messages; To be described location-server select described Serving cell to identify corresponding Serving cell as with reference to community according to described positioning assistance data request message to described the 2nd expectedRSTD, according to the positional information of base station under described reference cell with can be that the positional information of base station generates under the non-reference cell of described subscriber equipment service; Described the 2nd expectedRSTD-Uncertainly is that described location-server generates according to the TA value of described reference cell;

Measuring unit, for according to described the 2nd expectedRSTD and described the 2nd expectedRSTD-Uncertainty, measures the RSTD of described non-reference cell.

The first transmitting element, for send the first positioning assistance data message to subscriber equipment, comprises an expectedRSTD and an expectedRSTD-Uncertainly in described the first location assistance messages;

Receiving element, the positioning assistance data request message sending for receiving described subscriber equipment, in described positioning assistance data request message, comprise Serving cell sign corresponding to TA value minimum in the TA value of described subscriber equipment acquisition, described positioning assistance data request message is greater than at a described expectedRSTD-Uncertainty arbitrary TA value that described subscriber equipment obtains by described subscriber equipment, or sends during the CP value sum of arbitrary TA value and reference signal;

Generation unit, be used for according to described positioning assistance data request message, select described Serving cell to identify corresponding Serving cell as with reference to community, according to the positional information of base station under described reference cell with can be that the positional information of base station generates the 2nd expectedRSTD under the non-reference cell of described subscriber equipment service, and according to the TA value of described reference cell, generate described the 2nd expectedRSTD-Uncertainly;

The second transmitting element, for sending the second positioning assistance data message to described subscriber equipment, in described the second location assistance messages, comprise described the 2nd expectedRSTD and described the 2nd expectedRSTD-Uncertainly, so that described subscriber equipment is measured the RSTD of described non-reference cell according to described the 2nd expectedRSTD and described the 2nd expectedRSTD-Uncertainty.

As shown from the above technical solution, the embodiment of the present invention makes above-mentioned subscriber equipment can measure the RSTD of non-reference cell in the isomery scene of wireless communication system, and method is simple, easily realizes, thereby has effectively improved measurement efficiency.

Accompanying drawing explanation

In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.

The schematic flow sheet of the method for measurement that Fig. 1 provides for one embodiment of the invention;

The schematic flow sheet of the method for measurement that Fig. 2 provides for another embodiment of the present invention;

The schematic flow sheet of the method for measurement that Fig. 3 provides for another embodiment of the present invention;

The schematic flow sheet of the method for measurement that Fig. 4 provides for another embodiment of the present invention;

The structural representation of the location-server that Fig. 5 provides for another embodiment of the present invention;

The structural representation of the subscriber equipment that Fig. 6 provides for another embodiment of the present invention;

The structural representation of the subscriber equipment that Fig. 7 provides for another embodiment of the present invention;

The structural representation of the subscriber equipment that Fig. 8 provides for another embodiment of the present invention;

The structural representation of the location-server that Fig. 9 provides for another embodiment of the present invention.

Embodiment

For making object, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.

Technical scheme of the present invention, can be applied to various cordless communication networks, for example: global system for mobile communications (Global System for Mobile Communications, be called for short GSM), GPRS (General Packet Radio Service, be called for short GPRS) network, code division multiple access (Code Division Multiple Access, be called for short CDMA) network, Wideband Code Division Multiple Access (WCDMA) (Wideband Code Division Multiple Access, be called for short WCDMA) network, Long Term Evolution (Long Term Evolution, be called for short LTE) network or senior (the LTE Advanced of Long Term Evolution, abbreviation LTE-A) network and follow-up evolvement network etc.Term " network " can be replaced mutually with " system ".

Wherein, macro base station can be base station (the Base Transceiver Station in GSM network, GPRS network or cdma network, be called for short BTS), also can be the base station (NodeB) in WCDMA network, it can also be evolved base station in LTE network or LTE-A network (Evolved Node B is called for short eNB) etc.

Wherein, micro-base station can be (the Radio Remote Unit of remote radio in GSM network, GPRS network, cdma network or WCDMA network, be called for short RRU), can also be evolved micro-base station (Pico) in LTE network or LTE-A network, remote radio-frequency heads (Remote Radio Header is called for short RRH) etc.

The schematic flow sheet of the method for measurement that Fig. 1 provides for one embodiment of the invention, can be applied in the isomery scene of wireless communication system, and as shown in Figure 1, the method for measurement of the present embodiment can comprise:

101, location-server acquisition macro base station and at least one micro-base station are at least two definite Serving cells of subscriber equipment TA values separately.

Wherein, above-mentioned Serving cell is the current community for above-mentioned subscriber equipment service.

102, above-mentioned location-server is in above-mentioned TA value, selects Serving cell corresponding to minimum TA value as with reference to community.

103, above-mentioned location-server is according to the positional information of base station under above-mentioned reference cell with can be the positional information of base station under the non-reference cell of above-mentioned subscriber equipment service, generate the first expectation RSTD (expectedRSTD), and according to the TA value of selecting, generate an expectedRSTD uncertainty (expectedRSTD-Uncertainty).

For example: location-server can be according to expectedRSTD_n=(an-b1)/c, generate an expectedRSTD of non-reference cell n, wherein, an is the distance that under non-reference cell n (n can be positive integer), UE desired locations is arrived in base station, under b1 reference cell, base station is to the distance 0 of UE desired locations, and c is the light velocity.Under the scene based on TA, an is reduced to the distance of affiliated base station to reference cell, the affiliated base station of non-reference cell n (n can be positive integer), and b1 is reduced to 0 (desired locations of subscriber equipment is base station under reference cell).

In an execution mode of the present embodiment, above-mentioned positioning service implement body can generate an expectedRSTD-Uncertainty according to the TA value of selecting, and the value of an above-mentioned expectedRSTD-Uncertainty is above-mentioned TA value.

In another execution mode of the present embodiment, above-mentioned positioning service implement body can be according to the TA value of selecting and Cyclic Prefix (the Cyclic Prefix of reference signal, be called for short CP) value, generate an expectedRSTD-Uncertainty, the value of an above-mentioned expectedRSTD-Uncertainty is the CP value sum of above-mentioned TA value and above-mentioned reference signal.Because TA value definite is the most powerful path based in multipath channel, but, the first footpath of the required estimation of RSTD that subscriber equipment is measured, and time difference between most powerful path and first footpath is no more than the CP value of reference signal, therefore, the value of an above-mentioned expectedRSTD-Uncertainty can be the CP value sum of above-mentioned TA value and above-mentioned reference signal, can accurately obtain the size of search window, thereby effectively improve measurement reliability.

Be understandable that: if above-mentioned location-server is according to the TA value of selecting, the value of an expectedRSTD-Uncertainty who generates is above-mentioned TA value, so, in order to guarantee accurately to obtain the size of search window, subscriber equipment can also be using the CP value sum of the value of an expectedRSTD-Uncertainty and above-mentioned reference signal as search window, and effect is identical.

It should be noted that: in agreement LTE system R10, the unit of TA value is 16ts, and CP value is 160ts, the unit of the value of expectedRSTD-Uncertainty is 3ts, for example: TA=12, the value of an above-mentioned expectedRSTD-Uncertainty is CEIL ((12 * 16+160)/3)=118, and wherein, CEIL is the computing that rounds up.

104, above-mentioned location-server sends positioning assistance data message to above-mentioned subscriber equipment, in above-mentioned positioning assistance data message, comprise an above-mentioned expectedRSTD and an above-mentioned expectedRSTD-Uncertainty, so that above-mentioned subscriber equipment is measured the RSTD of above-mentioned non-reference cell according to an above-mentioned expectedRSTD and an above-mentioned expectedRSTD-Uncertainty.

In an execution mode of the present embodiment, before 102, above-mentioned location-server can also further receive the positioning assistance data request message that above-mentioned subscriber equipment sends, in above-mentioned positioning assistance data request message, comprise indication information, in order to ask above-mentioned location-server to redefine above-mentioned reference cell based on TA value, above-mentioned positioning assistance data request message is greater than at the 2nd expectedRSTD-Uncertainty receiving arbitrary TA value that above-mentioned subscriber equipment obtains by above-mentioned subscriber equipment, or sends when arbitrary TA value and above-mentioned CP value sum; Correspondingly, in 102, above-mentioned positioning service implement body can be according to above-mentioned request message, in above-mentioned TA value, selects Serving cell corresponding to minimum TA value as with reference to community.Wherein, the 2nd expectedRSTD-Uncertainty is that location-server is before 201, to other expectedRSTD-Uncertainty that are different from an expectedRSTD-Uncertainty of subscriber equipment transmission.

In an execution mode of the present embodiment, if non-reference cell to be measured is Serving cell, so above-mentioned subscriber equipment can be using synchronization accuracy value correlation time (for example: a numerical value between 10ts～90ts) as search window, according to an above-mentioned expectedRSTD and search window, measure the RSTD of above-mentioned Serving cell, can effectively dwindle the size of search window (being synchronization accuracy value correlation time), thereby further reduce the complexity of measuring; And if non-reference cell to be measured is non-service cell, so above-mentioned subscriber equipment can be using an above-mentioned expectedRSTD-Uncertainty as search window, according to an above-mentioned expectedRSTD and search window, measure the RSTD of above-mentioned non-service cell.

Be understandable that: if above-mentioned location-server is according to the TA value of selecting, the value of an expectedRSTD-Uncertainty who generates is above-mentioned TA value, so, in order to guarantee accurately to obtain the size of search window, subscriber equipment can also be using the CP value sum of the value of an expectedRSTD-Uncertainty and above-mentioned reference signal as search window, according to an above-mentioned expectedRSTD and above-mentioned search window, measure the RSTD of above-mentioned non-service cell.

In the present embodiment, by location-server, at obtained macro base station and at least one micro-base station, be in the TA value separately of at least two definite Serving cells of subscriber equipment, select Serving cell corresponding to minimum TA value as with reference to community, and then according to the positional information of base station under above-mentioned reference cell with can be the positional information of base station under the non-reference cell of above-mentioned subscriber equipment service, to subscriber equipment, sending for measuring can be the positioning assistance data message of the RSTD of subscriber equipment service (Serving cell and non-service cell), make above-mentioned subscriber equipment can measure the RSTD of non-reference cell in the isomery scene of wireless communication system, and method is simple, easily realize, thereby effectively improved measurement efficiency.

The schematic flow sheet of the method for measurement that Fig. 2 provides for another embodiment of the present invention, can be applied in the isomery scene of wireless communication system, and as shown in Figure 2, the method for measurement of the present embodiment can comprise:

201, subscriber equipment receives the positioning assistance data message that location-server sends, and comprises an expectedRSTD and an expectedRSTD-Uncertainty in above-mentioned positioning assistance data message; An above-mentioned expectedRSTD is that above-mentioned location-server obtains macro base station and at least one micro-base station is at least two definite Serving cells of above-mentioned subscriber equipment TA values separately, and in above-mentioned TA value, select Serving cell corresponding to minimum TA value as with reference to community, according to the positional information of base station under above-mentioned reference cell with can be that the positional information of base station generates under the non-reference cell of above-mentioned subscriber equipment service; An above-mentioned expectedRSTD-Uncertainty is that above-mentioned location-server generates according to the TA value of selecting.

It should be noted that: in agreement LTE system R10, the unit of TA value is 16ts, and common CP (Nomal CP) value is 160ts, the unit of the value of expectedRSTD-Uncertainty is 3ts, for example: TA=12, the value of an above-mentioned expectedRSTD-Uncertainty is (12 * 16+160)/3=118.

In an execution mode of the present embodiment, before 201, if the 2nd expectedRSTD-Uncertainly that above-mentioned subscriber equipment receives is greater than arbitrary TA value that above-mentioned subscriber equipment obtains, or arbitrary TA value and above-mentioned CP value sum, above-mentioned subscriber equipment can also further send positioning assistance data request message to above-mentioned location-server, in above-mentioned positioning assistance data request message, comprise indication information, in order to ask above-mentioned location-server to redefine above-mentioned reference cell based on TA value, so that above-mentioned location-server is according to above-mentioned positioning assistance data request message, in above-mentioned TA value, select Serving cell corresponding to minimum TA value as with reference to community.Wherein, the 2nd expectedRSTD-Uncertainty is that location-server is before 201, to other expectedRSTD-Uncertainty that are different from an expectedRSTD-Uncertainty of subscriber equipment transmission.

202, above-mentioned subscriber equipment, according to an above-mentioned expectedRSTD and an above-mentioned expectedRSTD-Uncertainty, is measured the RSTD of above-mentioned non-reference cell.

The schematic flow sheet of the method for measurement that Fig. 3 provides for another embodiment of the present invention, can be applied in the isomery scene of wireless communication system, and as shown in Figure 3, the method for measurement of the present embodiment can comprise:

301, subscriber equipment receives the first positioning assistance data message that location-server sends, and in above-mentioned the first location assistance messages, comprises an expectedRSTD and an expectedRSTD-Uncertainly.

Wherein, the method that location-server generates an above-mentioned expectedRSTD and an expectedRSTD-Uncertainly can, referring to method of the prior art, repeat no more herein.

If 302 above-mentioned expectedRSTD-Uncertainly are greater than arbitrary TA value that above-mentioned subscriber equipment obtains, or the CP value sum of arbitrary TA value and reference signal, above-mentioned subscriber equipment sends positioning assistance data request message to above-mentioned location-server, comprises Serving cell sign corresponding to TA value minimum in the TA value of above-mentioned subscriber equipment acquisition in above-mentioned positioning assistance data request message.

Wherein, to identify corresponding Serving cell be the current community for the service of above-mentioned subscriber equipment in above-mentioned Serving cell.

303, above-mentioned subscriber equipment receives the second positioning assistance data message that above-mentioned location-server sends, and in above-mentioned the second location assistance messages, comprises the 2nd expectedRSTD and the 2nd expectedRSTD-Uncertainly; To be above-mentioned location-server select above-mentioned Serving cell to identify corresponding Serving cell as with reference to community according to above-mentioned positioning assistance data request message to above-mentioned the 2nd expectedRSTD, according to the positional information of base station under above-mentioned reference cell with can be that the positional information of base station generates under the non-reference cell of above-mentioned subscriber equipment service; Above-mentioned the 2nd expectedRSTD-Uncertainly is that above-mentioned location-server generates according to the TA value of above-mentioned reference cell.

For example: location-server can be according to expectedRSTD_n=(an-b1)/c, generate the 2nd expectedRSTD of non-reference cell n, wherein, an is the distance that under non-reference cell n (n can be positive integer), UE desired locations is arrived in base station, under b1 reference cell, base station is to the distance 0 of UE desired locations, and c is the light velocity.Under the scene based on TA, an is reduced to the distance of affiliated base station to reference cell, the affiliated base station of non-reference cell n (n can be positive integer), and b1 is reduced to 0 (desired locations of subscriber equipment is base station under reference cell).

In an execution mode of the present embodiment, above-mentioned positioning service implement body can generate the 2nd expectedRSTD-Uncertainty according to the TA value of selecting, and the value of above-mentioned the 2nd expectedRSTD-Uncertainty is above-mentioned TA value.

In another execution mode of the present embodiment, above-mentioned positioning service implement body can be according to the TA value of selecting and the CP value of reference signal, generate the 2nd expectedRSTD-Uncertainty, the value of above-mentioned the 2nd expectedRSTD-Uncertainty is the CP value sum of above-mentioned TA value and above-mentioned reference signal.Because TA value definite is the most powerful path based in multipath channel, but, the first footpath of the required estimation of RSTD that subscriber equipment is measured, and time difference between most powerful path and first footpath is no more than the CP value of reference signal, therefore, the value of above-mentioned the 2nd expectedRSTD-Uncertainty can be the CP value sum of above-mentioned TA value and above-mentioned reference signal, can accurately obtain the size of search window, thereby effectively improve measurement reliability.

Be understandable that: if above-mentioned location-server is according to the TA value of selecting, the value of the 2nd expectedRSTD-Uncertainty generating is above-mentioned TA value, so, in order to guarantee accurately to obtain the size of search window, subscriber equipment can also be using the CP value sum of the value of the 2nd expectedRSTD-Uncertainty and above-mentioned reference signal as search window, and effect is identical.

It should be noted that: in agreement LTE system R10, the unit of TA value is 16ts, and CP value is 160ts, the unit of the value of expectedRSTD-Uncertainty is 3ts, for example: TA=12, the value of above-mentioned the 2nd expectedRSTD-Uncertainty is (12 * 16+160)/3=118.

304, above-mentioned subscriber equipment, according to above-mentioned the 2nd expectedRSTD and above-mentioned the 2nd expectedRSTD-Uncertainty, is measured the RSTD of above-mentioned non-reference cell.

In an execution mode of the present embodiment, if non-reference cell to be measured is Serving cell, so above-mentioned subscriber equipment can be using synchronization accuracy value correlation time (for example: a numerical value between 10ts～90ts) as search window, according to above-mentioned the 2nd expectedRSTD and search window, measure the RSTD of above-mentioned Serving cell, can effectively dwindle the size of search window (being synchronization accuracy value correlation time), thereby further reduce the complexity of measuring; And if non-reference cell to be measured is non-service cell, so above-mentioned subscriber equipment can be using above-mentioned the 2nd expectedRSTD-Uncertainty as search window, according to above-mentioned the 2nd expectedRSTD and search window, measure the RSTD of above-mentioned non-service cell.

Be understandable that: if above-mentioned location-server is according to the TA value of selecting, the value of the 2nd expectedRSTD-Uncertainty generating is above-mentioned TA value, so, in order to guarantee accurately to obtain the size of search window, subscriber equipment can also be using the CP value sum of the value of the 2nd expectedRSTD-Uncertainty and above-mentioned reference signal as search window, according to above-mentioned the 2nd expectedRSTD and above-mentioned search window, measure the RSTD of above-mentioned non-service cell.

In the present embodiment, by subscriber equipment, to location-server, send the positioning assistance data request message of Serving cell sign corresponding to TA value minimum in the TA value that comprises above-mentioned subscriber equipment acquisition, make location-server select above-mentioned Serving cell to identify corresponding Serving cell as with reference to community according to positioning assistance data request message, and then according to the positional information of base station under above-mentioned reference cell with can be the positional information of base station under the non-reference cell of above-mentioned subscriber equipment service, to subscriber equipment, sending for measuring can be the positioning assistance data message of the RSTD of subscriber equipment service (Serving cell and non-service cell), make above-mentioned subscriber equipment can measure the RSTD of non-reference cell in the isomery scene of wireless communication system, and method is simple, easily realize, thereby effectively improved measurement efficiency.

The schematic flow sheet of the method for measurement that Fig. 4 provides for another embodiment of the present invention, can be applied in the isomery scene of wireless communication system, and as shown in Figure 4, the method for measurement of the present embodiment can comprise:

401, location-server sends the first positioning assistance data message to subscriber equipment, in above-mentioned the first location assistance messages, comprises an expectedRSTD and an expectedRSTD-Uncertainly.

402, above-mentioned location-server receives the positioning assistance data request message that above-mentioned subscriber equipment sends, in above-mentioned positioning assistance data request message, comprise Serving cell sign corresponding to TA value minimum in the TA value of above-mentioned subscriber equipment acquisition, above-mentioned positioning assistance data request message is greater than at an above-mentioned expectedRSTD-Uncertainty arbitrary TA value that above-mentioned subscriber equipment obtains by above-mentioned subscriber equipment, or sends during the CP value sum of arbitrary TA value and reference signal.

403, above-mentioned location-server is according to above-mentioned positioning assistance data request message, select above-mentioned Serving cell to identify corresponding Serving cell as with reference to community, according to the positional information of base station under above-mentioned reference cell with can be that the positional information of base station generates the 2nd expectedRSTD under the non-reference cell of above-mentioned subscriber equipment service, and according to the TA value of above-mentioned reference cell, generate above-mentioned the 2nd expectedRSTD-Uncertainly.

404, above-mentioned location-server sends the second positioning assistance data message to above-mentioned subscriber equipment, in above-mentioned the second location assistance messages, comprise above-mentioned the 2nd expectedRSTD and above-mentioned the 2nd expectedRSTD-Uncertainly, so that above-mentioned subscriber equipment is measured the RSTD of above-mentioned non-reference cell according to above-mentioned the 2nd expectedRSTD and above-mentioned the 2nd expectedRSTD-Uncertainty.

In the present embodiment, by location-server, receive the positioning assistance data request message of Serving cell sign corresponding to TA value minimum in the TA value of comprising of subscriber equipment transmission of above-mentioned subscriber equipment acquisition, make location-server to select above-mentioned Serving cell to identify corresponding Serving cell as with reference to community according to positioning assistance data request message, and then according to the positional information of base station under above-mentioned reference cell with can be the positional information of base station under the non-reference cell of above-mentioned subscriber equipment service, to subscriber equipment, sending for measuring can be the positioning assistance data message of the RSTD of subscriber equipment service (Serving cell and non-service cell), make above-mentioned subscriber equipment can measure the RSTD of non-reference cell in the isomery scene of wireless communication system, and method is simple, easily realize, thereby effectively improved measurement efficiency.

It should be noted that: for aforesaid each embodiment of the method, for simple description, therefore it is all expressed as to a series of combination of actions, but those skilled in the art should know, the present invention is not subject to the restriction of described sequence of movement, because according to the present invention, some step can adopt other orders or carry out simultaneously.Secondly, those skilled in the art also should know, the embodiment described in specification all belongs to preferred embodiment, and related action and module might not be that the present invention is necessary.

In the above-described embodiments, the description of each embodiment is all emphasized particularly on different fields, in certain embodiment, there is no the part of detailed description, can be referring to the associated description of other embodiment.

The structural representation of the location-server that Fig. 5 provides for another embodiment of the present invention, can be applied in the isomery scene of wireless communication system, as shown in Figure 5, the location-server of the present embodiment can comprise acquisition unit 51, selected cell 52, generation unit 53 and transmitting element 54.Wherein, described acquisition unit 51 is at least two definite Serving cells of subscriber equipment TA values separately for obtaining macro base station and at least one micro-base station; Described selected cell 52 is in described TA value, selects Serving cell corresponding to minimum TA value as with reference to community; Described generation unit 53 is for according to the positional information of base station under described reference cell with can be the positional information of base station under the non-reference cell of described subscriber equipment service, generate an expectedRSTD, and the TA value of selecting according to described selected cell 52, generate an expectedRSTD-Uncertainty; Described transmitting element 54 is for sending positioning assistance data message to described subscriber equipment, in described positioning assistance data message, comprise a described expectedRSTD and a described expectedRSTD-Uncertainty, so that described subscriber equipment is measured the RSTD of described non-reference cell according to a described expectedRSTD and a described expectedRSTD-Uncertainty.

In an execution mode of the present embodiment, the TA value that described generation unit 53 specifically can be selected according to described selected cell 52, generates an expectedRSTD-Uncertainty, and the value of an above-mentioned expectedRSTD-Uncertainty is above-mentioned TA value.

In another execution mode of the present embodiment, the TA value that described generation unit 53 specifically can be selected according to described selected cell 52 and the CP value of reference signal, generate an expectedRSTD-Uncertainty, the value of an above-mentioned expectedRSTD-Uncertainty is the CP value sum of above-mentioned TA value and above-mentioned reference signal.Because TA value definite is the most powerful path based in multipath channel, but, the first footpath of the required estimation of RSTD that subscriber equipment is measured, and time difference between most powerful path and first footpath is no more than the CP value of reference signal, therefore, the value of an above-mentioned expectedRSTD-Uncertainty can be the CP value sum of above-mentioned TA value and above-mentioned reference signal, can accurately obtain the size of search window, thereby effectively improve measurement reliability.

Be understandable that: if the TA value that described generation unit 53 is selected according to described selected cell 52, the value of an expectedRSTD-Uncertainty who generates is above-mentioned TA value, so, in order to guarantee accurately to obtain the size of search window, subscriber equipment can also be using the CP value sum of the value of an expectedRSTD-Uncertainty and above-mentioned reference signal as search window, and effect is identical.

In an execution mode of the present embodiment, described selected cell 52 can also further receive the positioning assistance data request message that described subscriber equipment sends, in described positioning assistance data request message, comprise indication information, in order to ask described location-server to redefine described reference cell based on TA value, described positioning assistance data request message is greater than at the 2nd expectedRSTD-Uncertainty receiving arbitrary TA value that described subscriber equipment obtains by described subscriber equipment, or sends when arbitrary TA value and described CP value sum; Correspondingly, described selected cell 52 specifically can be according to described positioning assistance data request message, in described TA value, selects Serving cell corresponding to minimum TA value as with reference to community.

In the present embodiment, the macro base station that location-server obtains in acquisition unit by selected cell and at least one micro-base station are in the TA value separately of at least two definite Serving cells of subscriber equipment, select Serving cell corresponding to minimum TA value as with reference to community, and then by generation unit according to the positional information of base station under above-mentioned reference cell with can be that the positional information of base station generates an expectedRSTD under the non-reference cell of above-mentioned subscriber equipment service, and the TA value of selecting according to selected cell, generate an expectedRSTD-Uncertainty, and send to subscriber equipment, make above-mentioned subscriber equipment can measure the RSTD of non-reference cell in the isomery scene of wireless communication system, and method is simple, easily realize, thereby effectively improved measurement efficiency.

The structural representation of the subscriber equipment that Fig. 6 provides for another embodiment of the present invention, can be applied in the isomery scene of wireless communication system, and as shown in Figure 6, the subscriber equipment of the present embodiment can comprise receiving element 61 and measuring unit 62.Wherein, the positioning assistance data message that described receiving element 61 sends for receiving location-server, comprises an expectedRSTD and an expectedRSTD-Uncertainty in described positioning assistance data message; A described expectedRSTD is that described location-server obtains macro base station and at least one micro-base station is at least two definite Serving cells of described subscriber equipment TA values separately, and in described TA value, select Serving cell corresponding to minimum TA value as with reference to community, according to the positional information of base station under described reference cell with can be that the positional information of base station generates under the non-reference cell of described subscriber equipment service; A described expectedRSTD-Uncertainty is that described location-server generates according to the TA value of selecting; Described measuring unit 62, for according to a described expectedRSTD and a described expectedRSTD-Uncertainty, is measured the RSTD of described non-reference cell.

In an execution mode of the present embodiment, if non-reference cell to be measured is Serving cell, 62 of so described measuring units can be using synchronization accuracy value correlation time (for example: a numerical value between 10ts～90ts) as search window, according to an above-mentioned expectedRSTD and search window, measure the RSTD of above-mentioned Serving cell, can effectively dwindle the size of search window (being synchronization accuracy value correlation time), thereby further reduce the complexity of measuring; And if non-reference cell to be measured is non-service cell, 62 of so described measuring units can be using an above-mentioned expectedRSTD-Uncertainty as search window, according to an above-mentioned expectedRSTD and search window, measure the RSTD of above-mentioned non-service cell.

Be understandable that: if above-mentioned location-server is according to the TA value of selecting, the value of an expectedRSTD-Uncertainty who generates is above-mentioned TA value, so, in order to guarantee accurately to obtain the size of search window, 62 of described measuring units can also be using the CP value sum of the value of an expectedRSTD-Uncertainty and above-mentioned reference signal as search window, according to an above-mentioned expectedRSTD and above-mentioned search window, measure the RSTD of above-mentioned non-service cell.

In an execution mode of the present embodiment, as shown in Figure 7, the subscriber equipment of the present embodiment can further include request unit 71, for the 2nd expectedRSTD-Uncertainly receiving when described subscriber equipment, be greater than arbitrary TA value that described subscriber equipment obtains, or when arbitrary TA value and described CP value sum, can further to described location-server, send positioning assistance data request message, in described positioning assistance data request message, comprise indication information, in order to ask described location-server to redefine described reference cell based on TA value, so that described location-server is according to described positioning assistance data request message, in described TA value, select Serving cell corresponding to minimum TA value as with reference to community.Wherein, the 2nd expectedRSTD-Uncertainty is other expectedRSTD-Uncertainty that are different from an expectedRSTD-Uncertainty that location-server sends to subscriber equipment before.

The structural representation of the subscriber equipment that Fig. 8 provides for another embodiment of the present invention, can be applied in the isomery scene of wireless communication system, as shown in Figure 8, the subscriber equipment of the present embodiment can comprise the first receiving element 81, request unit 82, the second receiving element 83 and measuring unit 84.Wherein, the first positioning assistance data message that described the first receiving element 81 sends for receiving location-server, comprises an expectedRSTD and an expectedRSTD-Uncertainly in described the first location assistance messages; If described request unit 82 is greater than for a described expectedRSTD-Uncertainly arbitrary TA value that described subscriber equipment obtains, or the CP value sum of arbitrary TA value and reference signal, to described location-server, send positioning assistance data request message, in described positioning assistance data request message, comprise Serving cell sign corresponding to TA value minimum in the TA value of described subscriber equipment acquisition; The second positioning assistance data message that described the second receiving element 83 sends for receiving described location-server, comprises the 2nd expectedRSTD and the 2nd expectedRSTD-Uncertainly in described the second location assistance messages; To be described location-server select described Serving cell to identify corresponding Serving cell as with reference to community according to described positioning assistance data request message to described the 2nd expectedRSTD, according to the positional information of base station under described reference cell with can be that the positional information of base station generates under the non-reference cell of described subscriber equipment service; Described the 2nd expectedRSTD-Uncertainly is that described location-server generates according to the TA value of described reference cell; Described measuring unit 84, for according to described the 2nd expectedRSTD and described the 2nd expectedRSTD-Uncertainty, is measured the RSTD of described non-reference cell.

In an execution mode of the present embodiment, if non-reference cell to be measured is Serving cell, 84 of so described measuring units can be using synchronization accuracy value correlation time (for example: a numerical value between 10ts～90ts) as search window, according to above-mentioned the 2nd expectedRSTD and search window, measure the RSTD of above-mentioned Serving cell, can effectively dwindle the size of search window (being synchronization accuracy value correlation time), thereby further reduce the complexity of measuring; And if non-reference cell to be measured is non-service cell, 84 of so described measuring units can be using above-mentioned the 2nd expectedRSTD-Uncertainty as search window, according to above-mentioned the 2nd expectedRSTD and search window, measure the RSTD of above-mentioned non-service cell.

Be understandable that: if above-mentioned location-server is according to the TA value of selecting, the value of the 2nd expectedRSTD-Uncertainty generating is above-mentioned TA value, so, in order to guarantee accurately to obtain the size of search window, 84 of described measuring units can also be using the CP value sum of the value of the 2nd expectedRSTD-Uncertainty and above-mentioned reference signal as search window, according to above-mentioned the 2nd expectedRSTD and above-mentioned search window, measure the RSTD of above-mentioned non-service cell.

In the present embodiment, subscriber equipment sends the positioning assistance data request message of Serving cell sign corresponding to TA value minimum in the TA value that comprises above-mentioned subscriber equipment acquisition to location-server by request unit, make location-server select above-mentioned Serving cell to identify corresponding Serving cell as with reference to community according to positioning assistance data request message, and then according to the positional information of base station under above-mentioned reference cell with can be the positional information of base station under the non-reference cell of above-mentioned subscriber equipment service, to subscriber equipment, sending for measuring can be the positioning assistance data message of the RSTD of subscriber equipment service (Serving cell and non-service cell), make above-mentioned subscriber equipment can measure the RSTD of non-reference cell in the isomery scene of wireless communication system, and method is simple, easily realize, thereby effectively improved measurement efficiency.

The structural representation of the location-server that Fig. 9 provides for another embodiment of the present invention, can be applied in the isomery scene of wireless communication system, as shown in Figure 9, the location-server of the present embodiment can comprise the first transmitting element 91, receiving element 92, generation unit 93 and the second transmitting element 94.Wherein, described the first transmitting element 91, for send the first positioning assistance data message to subscriber equipment, comprises an expectedRSTD and an expectedRSTD-Uncertainly in described the first location assistance messages; The positioning assistance data request message that described receiving element 92 sends for receiving described subscriber equipment, in described positioning assistance data request message, comprise Serving cell sign corresponding to TA value minimum in the TA value of described subscriber equipment acquisition, described positioning assistance data request message is greater than at a described expectedRSTD-Uncertainty arbitrary TA value that described subscriber equipment obtains by described subscriber equipment, or sends during the CP value sum of arbitrary TA value and reference signal; Described generation unit 93 is for according to described positioning assistance data request message, select described Serving cell to identify corresponding Serving cell as with reference to community, according to the positional information of base station under described reference cell with can be that the positional information of base station generates the 2nd expectedRSTD under the non-reference cell of described subscriber equipment service, and according to the TA value of described reference cell, generate described the 2nd expectedRSTD-Uncertainly; Described the second transmitting element 94 is for sending the second positioning assistance data message to described subscriber equipment, in described the second location assistance messages, comprise described the 2nd expectedRSTD and described the 2nd expectedRSTD-Uncertainly, so that described subscriber equipment is measured the RSTD of described non-reference cell according to described the 2nd expectedRSTD and described the 2nd expectedRSTD-Uncertainty.

In an execution mode of the present embodiment, described generation unit 93 specifically can generate the 2nd expectedRSTD-Uncertainty according to the TA value of selecting, and the value of above-mentioned the 2nd expectedRSTD-Uncertainty is above-mentioned TA value.

In another execution mode of the present embodiment, described generation unit 93 specifically can be according to the TA value of selecting and the CP value of reference signal, generate the 2nd expectedRSTD-Uncertainty, the value of above-mentioned the 2nd expectedRSTD-Uncertainty is the CP value sum of above-mentioned TA value and above-mentioned reference signal.Because TA value definite is the most powerful path based in multipath channel, but, the first footpath of the required estimation of RSTD that subscriber equipment is measured, and time difference between most powerful path and first footpath is no more than the CP value of reference signal, therefore, the value of above-mentioned the 2nd expectedRSTD-Uncertainty can be the CP value sum of above-mentioned TA value and above-mentioned reference signal, can accurately obtain the size of search window, thereby effectively improve measurement reliability.

Be understandable that: if described generation unit 93 is according to the TA value of selecting, the value of the 2nd expectedRSTD-Uncertainty generating is above-mentioned TA value, so, in order to guarantee accurately to obtain the size of search window, subscriber equipment can also be using the CP value sum of the value of the 2nd expectedRSTD-Uncertainty and above-mentioned reference signal as search window, and effect is identical.

In the present embodiment, location-server receives the positioning assistance data request message of Serving cell sign corresponding to TA value minimum in the TA value of comprising of subscriber equipment transmission of above-mentioned subscriber equipment acquisition by receiving element, make generation unit to select above-mentioned Serving cell to identify corresponding Serving cell as with reference to community according to positioning assistance data request message, and then according to the positional information of base station under above-mentioned reference cell with can be the positional information of base station under the non-reference cell of above-mentioned subscriber equipment service, to subscriber equipment, sending for measuring can be the positioning assistance data message of the RSTD of subscriber equipment service (Serving cell and non-service cell), make above-mentioned subscriber equipment can measure the RSTD of non-reference cell in the isomery scene of wireless communication system, and method is simple, easily realize, thereby effectively improved measurement efficiency.

Those skilled in the art can be well understood to, for convenience and simplicity of description, the system of foregoing description, the specific works process of device and unit, can, with reference to the corresponding process in preceding method embodiment, not repeat them here.

In the several embodiment that provide in the application, should be understood that, disclosed system, apparatus and method, can realize by another way.For example, device embodiment described above is only schematic, for example, the division of described unit, be only that a kind of logic function is divided, during actual realization, can have other dividing mode, 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, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, indirect coupling or the communication connection of device or unit can be electrically, machinery or other form.

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

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

The integrated unit that the above-mentioned form with SFU software functional unit realizes, can be stored in a computer read/write memory medium.Above-mentioned SFU software functional unit is stored in a storage medium, comprise some instructions with so that computer equipment (can be personal computer, server, or the network equipment etc.) carry out the part steps of method described in each embodiment of the present invention.And aforesaid storage medium comprises: USB flash disk, portable hard drive, read-only memory (Read-Only Memory, be called for short ROM), the various media that can be program code stored such as random access memory (Random Access Memory is called for short RAM), magnetic disc or CD.

Finally it should be noted that: above embodiment only, in order to technical scheme of the present invention to be described, is not intended to limit; Although the present invention is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.

Claims

1. a method of measurement, is applied to, in the isomery scene of wireless communication system, it is characterized in that, described method comprises:

Location-server obtains macro base station and at least one micro-base station is at least two definite Serving cells of subscriber equipment timing advance TA values separately;

Described location-server is according to the positional information of base station under described reference cell and can be the positional information of base station under the non-reference cell of described subscriber equipment service, generate the first expectation reference signal time difference expectedRSTD, and according to the TA value of selecting, generate the first expectation reference signal time difference uncertainty expectedRSTD-Uncertainty;

2. method according to claim 1, is characterized in that, described according to the TA value of selecting, and generates an expectedRSTD-Uncertainty, comprising:

Described location-server, according to the TA value of selecting, generates an expectedRSTD-Uncertainty, and the value of a described expectedRSTD-Uncertainty is described TA value; Or

Described location-server, according to the TA value of selecting and the cyclic prefix CP value of reference signal, generates an expectedRSTD-Uncertainty, and the value of a described expectedRSTD-Uncertainty is the CP value sum of described TA value and described reference signal.

3. method according to claim 1 and 2, is characterized in that,

At described location-server, in described TA value, select Serving cell corresponding to minimum TA value as with reference to before community, also comprise:

Described location-server receives the positioning assistance data request message that described subscriber equipment sends, in described positioning assistance data request message, comprise indication information, in order to ask described location-server to redefine described reference cell based on TA value, described positioning assistance data request message is greater than at the 2nd expectedRSTD-Uncertainty receiving arbitrary TA value that described subscriber equipment obtains by described subscriber equipment, or sends when arbitrary TA value and CP value sum.

4. a method of measurement, is applied to, in the isomery scene of wireless communication system, it is characterized in that, described method comprises:

Subscriber equipment receives the positioning assistance data message that location-server sends, and comprises the first expectation reference signal time difference expectedRSTD and the first expectation reference signal time difference uncertainty expectedRSTD-Uncertainty in described positioning assistance data message; A described expectedRSTD is that described location-server obtains macro base station and at least one micro-base station is at least two definite Serving cells of described subscriber equipment timing advance TA values separately, and in described TA value, select Serving cell corresponding to minimum TA value as with reference to community, according to the positional information of base station under described reference cell with can be that the positional information of base station generates under the non-reference cell of described subscriber equipment service; A described expectedRSTD-Uncertainty is that described location-server generates according to the TA value of selecting;

5. method according to claim 4, is characterized in that, described subscriber equipment, according to a described expectedRSTD and a described expectedRSTD-Uncertainty, is measured the RSTD of described non-reference cell, comprising:

Described subscriber equipment, according to a described expectedRSTD and synchronization accuracy value correlation time, is measured the RSTD of the Serving cell in described non-reference cell; And

Described subscriber equipment, according to a described expectedRSTD and a described expectedRSTD-Uncertainly, is measured the RSTD of the non-service cell in described non-reference cell.

6. according to the method described in claim 4 or 5, it is characterized in that, receive the positioning assistance data message of location-server transmission at described subscriber equipment before, also comprise:

If the 2nd expectedRSTD-Uncertainly that described subscriber equipment receives is greater than arbitrary TA value that described subscriber equipment obtains, or arbitrary TA value and CP value sum, described subscriber equipment sends positioning assistance data request message to described location-server, in described positioning assistance data request message, comprise indication information, in order to ask described location-server to redefine described reference cell based on TA value, so that described location-server is according to described positioning assistance data request message, in described TA value, select Serving cell corresponding to minimum TA value as with reference to community.

7. a method of measurement, is applied to, in the isomery scene of wireless communication system, it is characterized in that, described method comprises:

Subscriber equipment receives the first positioning assistance data message that location-server sends, and comprises the first expectation reference signal time difference expectedRSTD and the first expectation reference signal time difference uncertainty expectedRSTD-Uncertainly in described the first location assistance messages;

If a described expectedRSTD-Uncertainly is greater than arbitrary timing advance TA value that described subscriber equipment obtains, or the CP value sum of arbitrary TA value and reference signal, described subscriber equipment sends positioning assistance data request message to described location-server, comprises Serving cell sign corresponding to TA value minimum in the TA value of described subscriber equipment acquisition in described positioning assistance data request message;

8. method according to claim 7, is characterized in that, described subscriber equipment, according to described the 2nd expectedRSTD and described the 2nd expectedRSTD-Uncertainty, is measured the RSTD of described non-reference cell, comprising:

Described subscriber equipment, according to described the 2nd expectedRSTD and synchronization accuracy value correlation time, is measured the RSTD of the Serving cell in described non-reference cell; And

Described subscriber equipment, according to described the 2nd expectedRSTD and described the 2nd expectedRSTD-Uncertainly, is measured the RSTD of the non-service cell in described non-reference cell.

9. a method of measurement, is applied to, in the isomery scene of wireless communication system, it is characterized in that, described method comprises:

Location-server sends the first positioning assistance data message to subscriber equipment, comprises the first expectation reference signal time difference expectedRSTD and the first expectation reference signal time difference uncertainty expectedRSTD-Uncertainly in described the first location assistance messages;

Described location-server receives the positioning assistance data request message that described subscriber equipment sends, in described positioning assistance data request message, comprise Serving cell sign corresponding to TA value minimum in the timing advance TA value of described subscriber equipment acquisition, described positioning assistance data request message is greater than at a described expectedRSTD-Uncertainty arbitrary TA value that described subscriber equipment obtains by described subscriber equipment, or sends during the cyclic prefix CP value sum of arbitrary TA value and reference signal;

10. a location-server, is applied to, in the isomery scene of wireless communication system, it is characterized in that, described location-server comprises:

Obtaining unit, is at least two definite Serving cells of subscriber equipment timing advance TA values separately for obtaining macro base station and at least one micro-base station;

Generation unit, for according to the positional information of base station under described reference cell with can be the positional information of base station under the non-reference cell of described subscriber equipment service, generate the first expectation reference signal time difference expectedRSTD, and the TA value of selecting according to described selected cell 22, generate the first expectation reference signal time difference uncertainty expectedRSTD-Uncertainty;

11. location-servers according to claim 10, is characterized in that, described generation unit is used for

The TA value of selecting according to described selected cell, generates an expectedRSTD-Uncertainty, and the value of a described expectedRSTD-Uncertainty is described TA value; Or

The TA value of selecting according to described selected cell and the cyclic prefix CP value of reference signal, generate an expectedRSTD-Uncertainty, and the value of a described expectedRSTD-Uncertainty is the CP value sum of described TA value and reference signal.

12. according to the location-server described in claim 10 or 11, it is characterized in that, described selected cell also for

Receive the positioning assistance data request message that described subscriber equipment sends, in described positioning assistance data request message, comprise indication information, in order to ask described location-server to redefine described reference cell based on TA value, described positioning assistance data request message is greater than at the 2nd expectedRSTD-Uncertainty receiving arbitrary TA value that described subscriber equipment obtains by described subscriber equipment, or sends when arbitrary TA value and CP value sum;

Described selected cell is used for

According to described positioning assistance data request message, in described TA value, select Serving cell corresponding to minimum TA value as with reference to community.

13. 1 kinds of subscriber equipmenies, are applied to, in the isomery scene of wireless communication system, it is characterized in that, described subscriber equipment comprises:

Receiving element, the positioning assistance data message sending for receiving location-server, comprises the first expectation reference signal time difference expectedRSTD and the first expectation reference signal time difference uncertainty expectedRSTD-Uncertainty in described positioning assistance data message; A described expectedRSTD is that described location-server obtains macro base station and at least one micro-base station is at least two definite Serving cells of described subscriber equipment timing advance TA values separately, and in described TA value, select Serving cell corresponding to minimum TA value as with reference to community, according to the positional information of base station under described reference cell with can be that the positional information of base station generates under the non-reference cell of described subscriber equipment service; A described expectedRSTD-Uncertainty is that described location-server generates according to the TA value of selecting;

14. subscriber equipmenies according to claim 13, is characterized in that, described measuring unit is used for

According to a described expectedRSTD and synchronization accuracy value correlation time, measure the RSTD of the Serving cell in described non-reference cell; And

According to a described expectedRSTD and a described expectedRSTD-Uncertainly, measure the RSTD of the non-service cell in described non-reference cell.

15. according to the subscriber equipment described in claim 13 or 14, it is characterized in that, described subscriber equipment also comprises request unit, for

If the 2nd expectedRSTD-Uncertainly that described subscriber equipment receives is greater than arbitrary TA value that described subscriber equipment obtains, or arbitrary TA value and CP value sum, to described location-server, send positioning assistance data request message, in described positioning assistance data request message, comprise indication information, in order to ask described location-server to redefine described reference cell based on TA value, so that described location-server is according to described positioning assistance data request message, in described TA value, select Serving cell corresponding to minimum TA value as with reference to community.

16. 1 kinds of subscriber equipmenies, are applied to, in the isomery scene of wireless communication system, it is characterized in that, described subscriber equipment comprises:

The first receiving element, the the first positioning assistance data message sending for receiving location-server, comprises the first expectation reference signal time difference expectedRSTD and the first expectation reference signal time difference uncertainty expectedRSTD-Uncertainly in described the first location assistance messages;

Request unit, if be greater than for a described expectedRSTD-Uncertainly arbitrary timing advance TA value that described subscriber equipment obtains, or the CP value sum of arbitrary TA value and reference signal, to described location-server, send positioning assistance data request message, in described positioning assistance data request message, comprise Serving cell sign corresponding to TA value minimum in the TA value of described subscriber equipment acquisition;

17. subscriber equipmenies according to claim 16, is characterized in that, described measuring unit is used for

According to described the 2nd expectedRSTD and synchronization accuracy value correlation time, measure the RSTD of the Serving cell in described non-reference cell; And

According to described the 2nd expectedRSTD and described the 2nd expectedRSTD-Uncertainly, measure the RSTD of the non-service cell in described non-reference cell.

18. 1 kinds of location-servers, are applied to, in the isomery scene of wireless communication system, it is characterized in that, described location-server comprises:

The first transmitting element, for sending the first positioning assistance data message to subscriber equipment, in described the first location assistance messages, comprise the first expectation reference signal time difference expectedRSTD and the first expectation reference signal time difference uncertainty expectedRSTD-Uncertainly;

Receiving element, the positioning assistance data request message sending for receiving described subscriber equipment, in described positioning assistance data request message, comprise Serving cell sign corresponding to TA value minimum in the timing advance TA value of described subscriber equipment acquisition, described positioning assistance data request message is greater than at a described expectedRSTD-Uncertainty arbitrary TA value that described subscriber equipment obtains by described subscriber equipment, or sends during the cyclic prefix CP value sum of arbitrary TA value and reference signal;