WO2015149581A1 - 定位方法和用于定位的基站及用户设备 - Google Patents

定位方法和用于定位的基站及用户设备 Download PDF

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Publication number
WO2015149581A1
WO2015149581A1 PCT/CN2015/071843 CN2015071843W WO2015149581A1 WO 2015149581 A1 WO2015149581 A1 WO 2015149581A1 CN 2015071843 W CN2015071843 W CN 2015071843W WO 2015149581 A1 WO2015149581 A1 WO 2015149581A1
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WIPO (PCT)
Prior art keywords
user equipment
positioning
information
base station
positioning signal
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PCT/CN2015/071843
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English (en)
French (fr)
Inventor
张应余
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华为技术有限公司
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Publication of WO2015149581A1 publication Critical patent/WO2015149581A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/029—Location-based management or tracking services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information

Definitions

  • the present invention relates to the field of wireless communication technologies, and in particular, to a positioning method and a base station and user equipment for positioning.
  • M2M communication based on long term evolution (LTE) system cellular technology has been paid more and more attention by the industry.
  • M2M communication is aimed at a wide range of fields, such as mobile point of sales (POS) terminals, supply chain automation, and intelligent transportation. Geographic location information has important reference significance in most M2M applications. Therefore, it is necessary for the M2M terminal to support basic cellular positioning technology.
  • POS mobile point of sales
  • the existing cell location technology of the M2M terminal includes an enhanced cell ID (ECID) positioning technology, an uplink time difference of arrival (UTDOA) positioning technology, and an observed time difference of arrival (OTDOA) positioning.
  • ECID enhanced cell ID
  • UTDOA uplink time difference of arrival
  • OTDOA observed time difference of arrival
  • A-GPS assisted global positioning system
  • M2M terminals have a large number of terminals. Therefore, the M2M terminal generates a large number of signaling interactions during the positioning process, causing signaling congestion.
  • the embodiment of the invention provides a positioning method and a base station and user equipment for positioning to avoid signaling congestion.
  • a positioning method comprising:
  • the base station configures positioning information, where the positioning information includes configuration information required for locating the user equipment;
  • the base station sends the positioning information to the user equipment in an idle state by using a broadcast mode, where the user equipment in the idle state includes a user equipment that does not establish an air interface connection with the base station by using a radio resource control (RRC) protocol;
  • RRC radio resource control
  • the base station receives, by the base station, the measurement result of the downlink positioning signal according to the positioning information, and positioning the user equipment according to the measurement result of the downlink positioning signal, where the downlink positioning signal is sent by the base station; or
  • the base station measures an uplink positioning signal that is sent by the user equipment according to the positioning information, and locates the user equipment according to the measurement result of the uplink positioning signal.
  • a base station for positioning is also provided, the base station comprising:
  • a positioning information configuration module configured to configure positioning information, where the positioning information includes configuration information required to locate the user equipment;
  • the positioning information sending module is coupled to the positioning information configuration module, configured to send the positioning information to the user equipment in an idle state by using a broadcast mode, where the user equipment in the idle state includes not passing the radio resource control (RRC) protocol.
  • the base station establishes a user equipment that is connected by an air interface;
  • the downlink positioning signal sending module is configured to send a downlink positioning signal
  • the downlink measurement result receiving module is configured to receive, by the user equipment, the downlink positioning according to the positioning information.
  • the measurement result of the signal; or the uplink positioning signal measurement module configured to measure an uplink positioning signal sent by the user equipment according to the positioning information;
  • the locating module is configured to locate the user equipment according to the measurement result of the downlink positioning signal, or locate the user equipment according to the measurement result of the uplink positioning signal.
  • a positioning method comprising:
  • the user equipment in the idle state acquires the positioning information that is configured by the base station and is sent by the broadcast mode, where the user equipment in the idle state includes the user equipment that does not establish an air interface connection with the base station by using a radio resource control (RRC) protocol,
  • RRC radio resource control
  • the positioning information includes configuration information required to locate the user equipment
  • the user equipment measures the downlink positioning signal sent by the base station to locate the user equipment according to the positioning information; or the user equipment sends an uplink positioning signal according to the positioning information to locate the user equipment.
  • a user equipment for positioning is also provided, the user equipment comprising:
  • a positioning information receiving module when the user equipment does not establish an air interface connection with the base station by using a radio resource control (RRC) protocol, the positioning information receiving module acquires positioning information that is configured by the base station and is sent by using a broadcast manner, where the positioning information is Including the configuration information required to locate the user equipment;
  • RRC radio resource control
  • the downlink positioning signal measurement module is configured to measure the downlink positioning signal sent by the base station according to the positioning information; or the uplink positioning signal sending module is configured to send an uplink positioning signal according to the positioning information.
  • the user equipment can directly obtain the positioning information configured by the base station in the idle state, and the user equipment does not need to establish the RRC air interface connection with the base station first. To get the configuration information needed for positioning. Therefore, the user equipment can perform positioning according to the positioning information in the idle state, which saves signaling interactions generated during the process of establishing a RRC air interface connection between the base station and the user equipment, and avoids signaling congestion.
  • FIG. 1 is a flow chart showing a positioning method according to an embodiment of the present invention
  • FIG. 2 is another flow chart of a positioning method according to an embodiment of the present invention.
  • FIG. 3 is a flow chart showing a positioning method according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a user equipment measuring a downlink positioning signal at a triggering time according to positioning information according to an embodiment of the present invention
  • FIG. 5 is another schematic diagram of a user equipment measuring a downlink positioning signal at a triggering time according to positioning information according to an embodiment of the present invention
  • FIG. 6 is a schematic diagram of a user equipment transmitting an uplink positioning signal at a triggering time according to positioning information according to an embodiment of the present invention
  • FIG. 7 is another schematic diagram of a user equipment transmitting an uplink positioning signal at a triggering time according to positioning information according to an embodiment of the present invention
  • FIG. 8 is a schematic structural diagram of a base station for positioning according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of a user equipment for positioning according to an embodiment of the present invention.
  • the technical solution of the present invention can be applied to various communication systems, such as: GSM, code division multiple access (CDMA) system, wideband code division multiple access wireless (WCDMA) system, and universal A general packet radio service (GPRS) system, a long term evolution (LTE) system, and the like.
  • GSM Global System for Mobile communications
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access wireless
  • GPRS universal A general packet radio service
  • LTE long term evolution
  • a user equipment which may also be called a mobile terminal, a mobile user equipment, or the like, may communicate with one or more core networks via a radio access network (RAN).
  • the device may be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal, for example, a portable, pocket, handheld, computer built-in or in-vehicle mobile device that is connected to the wireless device.
  • Network exchange language and / or data.
  • the base station may be a base transceiver station (BTS) in GSM or CDMA, or a base station (NodeB) in WCDMA, or an evolved base station (eNB or e-NodeB) in LTE.
  • BTS base transceiver station
  • NodeB base station
  • eNB evolved base station
  • e-NodeB evolved base station
  • FIG. 1 is a flow chart 100 of a positioning method in accordance with one embodiment of the present invention.
  • the method of Figure 1 is performed by a base station.
  • Figure 1 discloses certain specific steps, these steps are merely examples. The invention is equally applicable to variations or other steps of the steps shown in FIG.
  • step 102 the base station configures positioning information.
  • the location information includes configuration information required to locate the user equipment.
  • the positioning information includes configuration information required to locate the user equipment through the OTDOA positioning technology, or configuration information required for positioning by the ECID positioning technology, or configuration information required to locate the user equipment through the UTDOA positioning technology, or positioning by A-GPS. Technology assists in the identification of user equipment.
  • the configuration information of the OTDOA positioning technology includes configuration information of the downlink pilot signal.
  • the downlink pilot signals include, but are not limited to, a positioning reference signal (PRS) or a downlink physical synchronization signal.
  • the configuration information of the PRS includes, but is not limited to, transmission bandwidth information, frequency point information, or transmission subframe configuration information of the PRS.
  • the configuration information of the PRS may also include the type of cyclic prefix used by the PRS, for example, a normal type or an extended type.
  • the configuration information of the PRS may also include a deviation of system time between a plurality of base stations, for example, a slot offset or a subframe offset.
  • the downlink physical synchronization signals include a primary synchronization signal (PSS) and a secondary synchronization signal (SSS).
  • PSS primary synchronization signal
  • SSS secondary synchronization signal
  • Configuration information of the PSS or SSS includes, but is not limited to, a working frequency point, a cyclic prefix type, or a PCI.
  • the configuration information of the ECID positioning technology or the configuration information of the UTDOA positioning technology includes configuration information of a downlink pilot signal or configuration information of an uplink pilot signal.
  • the downlink pilot signals include, but are not limited to, a cell reference signal (CRS).
  • the uplink pilot signals include, but are not limited to, a sounding reference signal (SRS), a demodulation reference signal (DMRS), and a physical random access channel (PRACH).
  • SRS sounding reference signal
  • DMRS demodulation reference signal
  • PRACH physical random access channel
  • the configuration information of the CRS includes, but is not limited to, the system bandwidth, the working frequency, the cyclic prefix type, the physical cell identifier (PCI) of the site where the user equipment is located, or the reference signal receiving power (RSRP) and Reference parameter of reference signal receiving quality (RSRQ).
  • the configuration information of the SRS, the DMRS, and the PRACH includes, but is not limited to, a physical resource location (such as a frequency domain RB location, a time domain subframe number, or a system frame number), a sequence derived parameter (such as a root sequence label, a cyclic shift), or a cyclic prefix type. Wait.
  • a physical resource location such as a frequency domain RB location, a time domain subframe number, or a system frame number
  • a sequence derived parameter such as a root sequence label, a cyclic shift
  • a cyclic prefix type such as a cyclic prefix type.
  • the auxiliary information of the A-GPS positioning technology includes global positioning system (GPS) auxiliary information
  • the GPS auxiliary information includes GNSS-reference time in GNSS-common assist data, GNSS-reference location, GNSS-ionospheric model or GNSS-earth orientation parameter.
  • the GPS assistance information includes GNSS identity (GNSS ID), SBAS identity (SBAS ID), GNSS time models, GNSS differential correction (GNSS differential) in the GNSS-Generic Assist Data Element. Corrections), GNSS navigation model, GNSS real time integrity, GNSS GNSS data bit assistance, GNSS acquisition assistance, GNSS almanac, GNSS UTC model or GNSS auxiliary information.
  • the positioning information may further include first trigger configuration information.
  • the first trigger configuration information is used to indicate that the user equipment measures any one of a measurement start time, a measurement duration, or a measurement period of the downlink positioning signal.
  • the user equipment measures the downlink positioning signal (the following pilot signal) at the triggering time according to the first trigger configuration information. Therefore, the base station implements control of positioning of the user equipment by using the first trigger configuration information.
  • the positioning information may further include second trigger configuration information.
  • the second trigger configuration information is used to indicate any one of a sending start time, a sending duration, or a sending period of the uplink positioning signal sent by the user equipment.
  • the user equipment sends an uplink positioning signal (such as an uplink pilot signal) at the triggering time according to the second trigger configuration information. Therefore, the base station implements control of positioning of the user equipment by using the second trigger configuration information.
  • the base station sends the positioning information to the user equipment in the idle state by using a broadcast manner.
  • the user equipment in the idle state includes a user equipment that does not establish an air interface connection with the base station by using a radio resource control (RRC) protocol.
  • the user equipment in the idle state further includes establishing an air interface connection with the base station through the RRC protocol and failing to pass the light presentation protocol (LPP) and the enhanced-serving mobile location center (E-SMLC). Establish user equipment for high-level connections.
  • RRC radio resource control
  • LPP light presentation protocol
  • E-SMLC enhanced-serving mobile location center
  • the base station When the user equipment is in an idle state, the base station sends the positioning information to the user equipment by means of broadcast. For example, the base station sends the location information to the user equipment through the system message. Further, the user equipment can obtain configuration information from the cell system information in which the user equipment resides. In this manner, the location information may be cell level configuration information, that is, user equipments in the same cell use the same configuration information. Alternatively, the base station sends the positioning information to the user equipment through the multicast channel. An area consists of several cells. In this way, the positioning information can be regional-level The information is that the user equipments of the cells in the same area use the same configuration information. For example, in an area of the same multicast broadcast single frequency network (MBSFN), the base station provides positioning configuration information to the user equipment through a physical multicast channel (PMCH).
  • PMCH physical multicast channel
  • the base station When the location information includes configuration information of a downlink positioning signal (eg, a downlink pilot signal), the base station performs step 106.
  • the base station receives the measurement result of the downlink positioning signal measured by the user equipment according to the positioning information, and locates the user equipment according to the measurement result of the downlink positioning signal.
  • the downlink positioning signal is transmitted by the base station.
  • the base station When the positioning information includes configuration information of an uplink positioning signal (eg, an uplink pilot signal), the base station performs step 108.
  • the base station measures an uplink positioning signal sent by the user equipment according to the positioning information, and locates the user equipment according to the measurement result of the uplink positioning signal.
  • the user equipment can directly obtain the positioning information configured by the base station in the idle state, and the user equipment does not need to establish a RRC air interface connection with the base station to obtain the configuration information required for the positioning. . Therefore, the user equipment can perform positioning according to the positioning information in the idle state, which saves signaling interactions generated during the process of establishing a RRC air interface connection between the base station and the user equipment, and avoids signaling congestion. In addition, the power consumption consumed by the base station to locate the user equipment is also reduced.
  • FIG. 2 is a flow chart 200 of a positioning method in accordance with one embodiment of the present invention. The method of Figure 2 is performed by a base station. Figure 2 will be described in conjunction with Figure 1.
  • step 202 the base station configures positioning information.
  • step 204 the base station sends the positioning information to the user equipment in the idle state by using a broadcast manner.
  • Steps 202 and 204 are the same as steps 102 and 104 in FIG. 1 respectively, and details are not described herein again.
  • step 205 the base station performs step 205.
  • step 205 can be performed concurrently with steps 202 or 204.
  • the base station sends trigger indication information to the user equipment.
  • the trigger indication information includes first trigger indication information or second trigger indication information.
  • the first trigger indication information is used to indicate whether the user equipment measures a downlink positioning signal (eg, a downlink pilot signal) at a later time (eg, in a subsequent frame or subframe).
  • the second trigger indication information is used to indicate whether the user equipment sends an uplink positioning signal (eg, an uplink pilot signal) at a later time (eg, in a subsequent frame or subframe).
  • the base station sends the trigger indication information to the user equipment through the paging channel; or the base station sends the trigger information to the user equipment through a physical downlink control channel (PDCCH) or an enhanced physical downlink control channel (EPDCCH).
  • the trigger indication information is sent; or the base station sends the trigger indication information to the user equipment by using media access control (MAC) layer signaling.
  • MAC media access control
  • the user equipment may indicate whether the downlink positioning signal is measured in a subsequent frame (or subframe) by using several bits (1 or 2 bits) of information.
  • the base station sends the first trigger indication information to the user equipment by using the PDCCH or the EPDCCH
  • the user equipment may indicate whether the downlink positioning signal is measured in a subsequent frame (or subframe) by using several bits (1 or 2 bits) of information.
  • the base station sends the first trigger indication information to the user equipment by using the MAC layer signaling
  • the MAC layer signaling included in the data block transmitted by the downlink data channel may be used to indicate that the user equipment is in a subsequent frame (or subframe). Whether to measure the downlink positioning signal.
  • the user equipment may indicate whether the uplink positioning signal is sent in a subsequent frame (or subframe) by using a number of bits (1 or 2 bits) of information.
  • the base station sends the second trigger indication information to the user equipment by using the PDCCH or the EPDCCH
  • the user equipment may indicate whether the uplink positioning signal is sent in a subsequent frame (or subframe) by using a number of bits (1 or 2 bits) of information.
  • the MAC layer signaling included in the data block transmitted by the downlink data channel may be used to indicate that the user equipment is in a subsequent frame (or Whether the uplink positioning signal is transmitted within the subframe).
  • the base station indicates whether the downlink positioning signal is measured by the user equipment at a certain moment after the first trigger indication information, or indicates whether the user equipment sends an uplink positioning signal at a certain moment after the second trigger indication information, so as to implement control on positioning of the user equipment.
  • FIG. 3 is a flow chart 300 of a positioning method in accordance with one embodiment of the present invention.
  • the method of FIG. 3 is performed by a user equipment and corresponds to the method of FIG. Therefore, the repeated description will be omitted as appropriate.
  • the user equipment in the idle state acquires positioning information configured by the base station and sent by broadcast.
  • the user equipment in the idle state includes a user equipment that does not establish an air interface connection with the base station through the RRC protocol.
  • the location information includes configuration information required to locate the user equipment.
  • the positioning information includes configuration information required to locate the user equipment through the OTDOA positioning technology, or configuration information required to locate the user equipment through the ECID positioning technology, or configuration information required to locate the user equipment through the UTDOA positioning technology, or through A- GPS positioning technology locates the auxiliary information required by the user equipment.
  • the step 302 may include: acquiring, by the user equipment, the positioning information that is sent by the base station by using a system message; or, the user equipment acquiring the positioning information that is sent by the base station by using the multicast channel.
  • the user equipment When the location information includes configuration information of a downlink positioning signal (eg, a downlink pilot signal), the user equipment performs step 304.
  • the user equipment measures the downlink positioning signal sent by the base station according to the positioning information to locate the user equipment.
  • the positioning information further includes first trigger configuration information.
  • the first trigger configuration information is used to indicate that the user equipment measures any one of a measurement start time, a measurement duration, or a measurement period of the downlink positioning signal.
  • the user equipment includes a timer and a measurement module, and the timer is timed according to the first trigger configuration information, and the measurement module is triggered to measure the downlink positioning signal at the triggering time.
  • the user equipment measures the downlink setting at the triggering time according to the first trigger configuration information. The operation of the bit signal will be further described in conjunction with FIG.
  • the user equipment receives the first trigger indication information sent by the base station.
  • the first trigger indication information is used to indicate whether the user equipment measures the downlink positioning signal at a later time (for example, within a certain frame or subframe). The operation of the user equipment to measure the downlink positioning signal at the triggering time according to the first trigger indication information will be further described in conjunction with FIG. 5.
  • the user equipment When the location information includes configuration information of an uplink positioning signal (eg, an uplink pilot signal), the user equipment performs step 306. In step 306, the user equipment sends an uplink positioning signal according to the positioning information to locate the user equipment.
  • an uplink positioning signal eg, an uplink pilot signal
  • the positioning information further includes second trigger configuration information.
  • the second trigger configuration information is used to indicate any one of a sending start time, a sending duration, or a sending period of the uplink positioning signal sent by the user equipment.
  • the user equipment includes a timer and a sending module, and the timer counts according to the second trigger configuration information, and triggers the sending module to send an uplink positioning signal at the triggering time. The operation of the user equipment to send the uplink positioning signal at the triggering time according to the second trigger configuration information will be further described in conjunction with FIG. 6.
  • the user equipment receives the second trigger indication information sent by the base station.
  • the second trigger indication information is used to indicate whether the user equipment sends an uplink positioning signal at a later time (for example, in a subsequent frame or subframe).
  • the operation of the user equipment to send the uplink positioning signal at the triggering time according to the second trigger indication information will be further described in conjunction with FIG. 7.
  • the user equipment can directly obtain the positioning information configured by the base station in the idle state, the user equipment does not need to establish a RRC air interface connection with the base station to obtain the configuration information required for the positioning. Therefore, the user equipment can perform positioning according to the positioning information in an idle state, which saves signaling interaction generated during the process of establishing a RRC air interface connection between the user equipment and the base station, and avoids signaling congestion. In addition, the power consumption of user equipment positioning is also reduced.
  • the positioning information further includes first trigger configuration information.
  • the first trigger configuration information is used to indicate that the user equipment measures the measurement start time, the measurement duration, or Measure any of the parameters in the cycle.
  • User equipment includes a timer.
  • step 402 the user equipment acquires first trigger configuration information from the location information.
  • step 404 the timer counts based on the first trigger configuration information and determines if the timer has timed out. When the timer expires, it indicates that the trigger time is reached, and the process proceeds to step 406.
  • step 406 the user equipment measures the downlink positioning signal.
  • FIG. 5 shows another schematic diagram 304_B of step 304 in accordance with one embodiment of the present invention.
  • the user equipment receives the first trigger indication information sent by the base station.
  • the first trigger indication information is used to indicate whether the downlink positioning signal is measured by the user equipment at a later time (for example, a subsequent frame or subframe).
  • the user equipment receives the first trigger indication information sent by the base station through the paging channel; or the user equipment receives the first trigger indication information that is sent by the base station through the physical downlink control channel; or the user equipment receives the base station sends the MAC layer signaling.
  • the first trigger indication information is used to indicate whether the downlink positioning signal is measured by the user equipment at a later time (for example, a subsequent frame or subframe).
  • the user equipment receives the first trigger indication information sent by the base station through the paging channel; or the user equipment receives the first trigger indication information that is sent by the base station through the physical downlink control channel; or the user equipment receives the base station sends the MAC layer signaling.
  • the first trigger indication information is used to indicate whether the downlink positioning signal is measured by the user
  • step 504 the user equipment determines, according to the first trigger indication information, whether the downlink positioning signal is measured in a subsequent time (for example, a subsequent frame or subframe). If the first trigger indication information indicates that the user equipment measures the downlink positioning signal at a later time, then proceed to step 506.
  • step 506 the user equipment measures the downlink positioning signal.
  • Figure 6 shows a schematic 306_A of step 306 in accordance with one embodiment of the present invention.
  • the positioning information further includes second trigger configuration information.
  • the second trigger configuration information is used to indicate that the user equipment sends any one of a sending start time, a sending duration, or a sending period of the uplink positioning signal.
  • User equipment includes a timer.
  • step 602 the user equipment acquires second trigger configuration information from the positioning information.
  • step 604 the timer counts according to the second trigger configuration information and determines whether the timer has timed out. When the timer expires, it indicates that the trigger time is reached, and the process proceeds to step 606.
  • step 606 the user equipment sends an uplink positioning signal.
  • FIG. 7 shows another schematic 306_B of step 306 in accordance with one embodiment of the present invention.
  • the user equipment receives the second trigger indication information sent by the base station.
  • the second trigger indication information is used to indicate whether the user equipment sends an uplink positioning signal in a subsequent time (eg, a subsequent frame or subframe). For example, the user equipment receives the second trigger indication information sent by the base station through the paging channel; or the user equipment receives the second trigger indication information that is sent by the base station through the physical downlink control channel; or the user equipment receives the base station sends the MAC layer signaling through the MAC layer.
  • the second trigger indication information is used to indicate whether the user equipment sends an uplink positioning signal in a subsequent time (eg, a subsequent frame or subframe).
  • the user equipment receives the second trigger indication information sent by the base station through the paging channel; or the user equipment receives the second trigger indication information that is sent by the base station through the physical downlink control channel; or the user equipment receives the base station sends the MAC layer signaling through the MAC layer.
  • the second trigger indication information is used to indicate whether the
  • step 704 the user equipment determines, according to the second trigger indication information, whether to send an uplink positioning signal in a subsequent time (for example, a subsequent frame or subframe). If the second trigger indication information indicates that the user equipment sends the uplink positioning signal at a later time, proceed to step 806.
  • step 706 the user equipment sends an uplink positioning signal.
  • FIG. 8 is a block diagram showing the structure of a base station 800 for positioning according to an embodiment of the present invention. FIG. 8 will be described in conjunction with FIGS. 1 through 2.
  • the base station 800 includes a positioning information configuration module 802, a positioning information transmitting module 804, and a positioning module 814.
  • a location information transmitting module 804 is coupled to the location information configuration module 802.
  • the location information configuration module 802 and the location module 814 can be implemented by a base station controller (BSC) of the base station 800.
  • the location information sending module 804 can be implemented by a base transceiver station (BTS) of the base station 800.
  • BSC base station controller
  • the location information sending module 804 can be implemented by a base transceiver station (BTS) of the base station 800.
  • the base station 800 further includes a downlink positioning signal sending module 808 and a downlink measurement result receiving module 810.
  • base station 800 also includes an uplink positioning signal measurement module 812.
  • the downlink positioning signal sending module 808, the downlink measurement result receiving module 810, and the uplink positioning signal measuring module 812 can all be implemented by the base transceiver station of the base station 800.
  • the location information configuration module 802 is configured to configure location information and The positioning information is sent to the positioning information sending module 804.
  • the location information includes configuration information required to locate the user equipment.
  • the positioning information includes configuration information required to locate the user equipment through the OTDOA positioning technology, or configuration information required for positioning by the ECID positioning technology, or configuration information required to locate the user equipment through the UTDOA positioning technology, or positioning by A-GPS. Technology assists in the identification of user equipment.
  • the positioning information may further include first trigger configuration information.
  • the first trigger configuration information is used to indicate that the user equipment measures any one of a measurement start time, a measurement duration, or a measurement period of the downlink positioning signal.
  • the user equipment measures the downlink positioning signal (the following pilot signal) at the triggering time according to the first trigger configuration information.
  • the positioning information may further include second trigger configuration information.
  • the second trigger configuration information is used to indicate any one of a sending start time, a sending duration, or a sending period of the uplink positioning signal sent by the user equipment.
  • the user equipment sends an uplink positioning signal (such as an uplink pilot signal) at the triggering time according to the second trigger configuration information.
  • the positioning information sending module 804 is configured to send the positioning information to the user equipment in the idle state by using a broadcast manner.
  • the user equipment in the idle state includes a user equipment that does not establish an air interface connection with the base station through the RRC protocol.
  • the user equipment in the idle state further includes a user equipment that does not establish an air interface connection with the base station through the RRC protocol and does not establish a high-level connection with the E-SMLC through the LPP.
  • the location information sending module 804 sends the location information to the user equipment in the idle state through the system message.
  • the location information sending module 804 sends the location information to the user equipment in the idle state through the multicast channel.
  • the downlink positioning signal sending module 808 is configured to send a downlink positioning signal.
  • the positioning information includes the configuration information of the downlink positioning signal (for example, the downlink pilot signal)
  • the downlink measurement result receiving module 810 receives the measurement result of the downlink positioning signal measured by the user equipment according to the positioning information, and locates the downlink.
  • the measurement result of the signal is sent to the positioning module 814.
  • the positioning module 814 locates the user equipment according to the measurement result of the downlink positioning signal.
  • the uplink positioning signal measurement module 812 measures the uplink positioning signal sent by the user equipment according to the positioning information, and sends the measurement result of the uplink positioning signal to the positioning module. 814.
  • the positioning module 814 locates the user equipment according to the measurement result of the uplink positioning signal.
  • the user equipment can directly obtain the positioning information configured by the base station 800 in the idle state, and the user equipment does not need to establish a RRC air interface connection with the base station 800 to obtain the positioning required. Configuration information. Therefore, the user equipment can perform positioning according to the positioning information in the idle state, which saves the signaling interaction generated during the process of establishing the RRC air interface connection between the base station 800 and the user equipment, and avoids signaling congestion. In addition, the power consumption consumed by the base station 800 to locate the user equipment is also reduced.
  • base station 800 also includes a trigger indication information transmitting module 806.
  • the trigger indication information transmitting module 806 can be implemented by the base transceiver station of the base station 800.
  • the trigger indication information sending module 806 is configured to send trigger indication information to the user equipment.
  • the trigger indication information includes first trigger indication information or second trigger indication information.
  • the first trigger indication information is used to indicate whether the user equipment measures a downlink positioning signal (eg, a downlink pilot signal) at a later time (eg, in a subsequent frame or subframe).
  • the second trigger indication information is used to indicate whether the user equipment sends an uplink positioning signal (eg, an uplink pilot signal) at a later time (eg, in a subsequent frame or subframe).
  • the trigger indication information sending module 806 sends the trigger indication information to the user equipment through the paging channel; or the trigger indication information sending module 806 sends the trigger indication information to the user equipment by using the PDCCH or the EPDCCH; or the trigger indication information sending module 806 passes the MAC address.
  • the layer signaling sends trigger indication information to the user equipment.
  • the trigger indication information sending module 806 sends the first trigger indication information to the user equipment through the paging channel
  • whether the user equipment measures in a subsequent frame (or subframe) can be indicated by several bits (1 or 2 bits) information.
  • Downlink positioning signal When the trigger indication information sending module 806 sends a first trigger indication to the user equipment by using a PDCCH or an EPDCCH
  • the user equipment may indicate whether the downlink positioning signal is measured in a subsequent frame (or subframe) by a number of bits (1 or 2 bits) of information.
  • the trigger indication information sending module 806 sends the first trigger indication information to the user equipment by using the MAC layer signaling
  • the MAC layer signaling included in the data block transmitted by the downlink data channel may be used to indicate that the user equipment is in a subsequent frame ( Whether the downlink positioning signal is measured within the subframe or the subframe.
  • the user equipment may indicate whether the uplink positioning is sent by the user equipment in a subsequent frame (or subframe) by using several bits (1 or 2 bits) of information. signal.
  • the trigger indication information sending module 806 sends the second trigger indication information to the user equipment by using the PDCCH or the EPDCCH, whether the user equipment is in a subsequent frame (or subframe) may be indicated by several bits (1 or 2 bits) information. Send an uplink positioning signal.
  • the MAC layer signaling included in the data block transmitted by the downlink data channel may be used to indicate that the user equipment is in a subsequent frame (or sub Whether to send an uplink positioning signal within the frame).
  • FIG. 9 is a block diagram showing the structure of a user equipment 900 for positioning according to an embodiment of the present invention. FIG. 9 will be described in conjunction with FIGS. 3 through 7.
  • the user equipment 900 includes a positioning information receiving module 902, an uplink positioning signal sending module 906, or a downlink positioning signal measuring module 908.
  • the location information receiving module 902 can be implemented by a receiver of the user equipment 900.
  • the uplink positioning signal transmitting module 906 can be implemented by a transmitter of the user equipment 900.
  • the downlink positioning signal measurement module 908 can be implemented by a processor of the user equipment 900.
  • the location information includes configuration information required to locate the user equipment.
  • the positioning information includes configuration information required for positioning the user equipment by using the OTDOA positioning technology, or positioning the user equipment by using an ECID positioning technology.
  • the location information receiving module 902 receives the location information sent by the base station through the system message; or the location information receiving module 902 receives the location information sent by the base station through the multicast channel.
  • the downlink positioning signal measurement module 908 measures the downlink positioning signal sent by the base station according to the positioning information to locate the user equipment.
  • user device 900 also includes a timer 910.
  • the positioning information also includes first trigger configuration information.
  • the first trigger configuration information is used to indicate that the user equipment 900 measures any one of a measurement start time, a measurement duration, or a measurement period of the downlink positioning signal.
  • the timer 910 is timed according to the first trigger configuration information. When the timer 910 times out, the downlink positioning signal measurement module 908 measures the downlink positioning signal at the triggering time.
  • the user equipment 900 further includes a trigger indication information receiving module 904.
  • the trigger indication information receiving module 904 can also be implemented by a receiver of the user equipment 900.
  • the trigger indication information receiving module 904 receives the first trigger indication information sent by the base station.
  • the first trigger indication information is used to indicate whether the user equipment 900 measures the downlink positioning signal at a later time (eg, within a certain frame or subframe).
  • the downlink positioning signal measurement module 908 measures the downlink positioning signal at the triggering time according to the first trigger indication information.
  • the uplink positioning signal sending module 906 sends an uplink positioning signal according to the positioning information to locate the user equipment.
  • the positioning information further includes second trigger configuration information.
  • the second trigger configuration information is used to indicate that the user equipment 900 sends any one of a sending start time, a sending duration, or a sending period of the uplink positioning signal.
  • the timer 910 is timed according to the second trigger configuration information. When the timer 910 times out, the uplink positioning signal sending module 906 sends the triggering time. Uplink positioning signal.
  • the trigger indication information receiving module 904 receives the second trigger indication information sent by the base station.
  • the second trigger indication information is used to indicate whether the user equipment 900 sends an uplink positioning signal at a later time (eg, within a certain frame or subframe).
  • the uplink positioning signal sending module 906 sends the uplink positioning signal at the triggering time according to the second triggering indication information.
  • the user equipment 900 can directly obtain the positioning information configured by the base station in the idle state, the user equipment 900 does not need to establish a RRC air interface connection with the base station to obtain the configuration information required for the positioning. Therefore, the user equipment 900 can implement positioning according to the positioning information in the idle state, which saves signaling interaction generated during the process of establishing the RRC air interface connection between the user equipment 900 and the base station, and avoids signaling congestion. In addition, the power consumption consumed by the positioning of the user equipment 900 is also reduced.

Abstract

提供了一种定位方法，包括：基站配置定位信息，该定位信息包括定位用户设备所需的配置信息；基站通过广播方式向处于空闲态的用户设备发送该定位信息，处于空闲态的用户设备包括未通过RRC协议与基站建立空口连接的用户设备；基站接收用户设备根据定位信息测量下行定位信号的测量结果，或者测量用户设备根据定位信息发送的上行定位信号，从而定位用户设备。釆用本发明的定位方法，用户设备可在空闲态下根据定位信息实现定位，节省了用户设备与基站建立RRC空口连接的过程中产生的信令交互，避免了信令拥塞。此外，还提供了用于定位的基站和用户设备。

Description

定位方法和用于定位的基站及用户设备
本申请要求于2014年4月4日提交中国专利局、申请号为201410135901.1、发明名称为“定位方法和用于定位的基站及用户设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及无线通讯技术领域，具体涉及一种定位方法和用于定位的基站和用户设备。
背景技术
随着物联网(machine to machine，M2M)技术的发展，基于长期演进(long term evolution，LTE)系统蜂窝技术的M2M通信越来为产业界所重视。M2M通信面向的领域广泛，例如：移动销售点(point of sales,POS)终端、供应链自动化、智能化运输等。地理位置信息在多数的M2M应用中具有重要的参考意义。因此，M2M终端有必要支持基本的蜂窝定位技术。
M2M终端现有的蜂窝定位技术包括增强小区标识(enhanced cell ID，ECID)定位技术、上行到达时间差(uplink time difference of arrival，UTDOA)定位技术、观察到达时间差(observed time difference of arrival，OTDOA)定位技术以及辅助全球卫星定位系统(assisted-global Positioning System，A-GPS)定位技术等。然而，M2M终端具有终端数量庞大的特点。因此，M2M终端在定位过程中产生大量的信令交互，造成信令拥塞。
发明内容
本发明实施例提供了一种定位方法和用于定位的基站及用户设备，以避免信令拥塞。
本发明实施例具体可以通过如下技术方案实现：
一方面，提供了一种定位方法，该方法包括：
基站配置定位信息，所述定位信息包括定位用户设备所需的配置信息；
所述基站通过广播方式向处于空闲态的用户设备发送所述定位信息，所述处于空闲态的用户设备包括未通过无线资源控制(RRC)协议与所述基站建立空口连接的用户设备；及
所述基站接收所述用户设备根据所述定位信息测量下行定位信号的测量结果,并根据所述下行定位信号的测量结果定位所述用户设备，所述下行定位信号是由所述基站发送；或者，所述基站测量所述用户设备根据所述定位信息发送的上行定位信号,并根据所述上行定位信号的测量结果定位所述用户设备。
还提供了一种用于定位的基站，该基站包括：
定位信息配置模块，用于配置定位信息，所述定位信息包括定位用户设备所需的配置信息；
定位信息发送模块，耦合至所述定位信息配置模块，用于通过广播方式将定位信息发送至处于空闲态的用户设备，所述处于空闲态的用户设备包括未通过无线资源控制(RRC)协议与所述基站建立空口连接的用户设备；
下行定位信号发送模块和下行测量结果接收模块,所述下行定位信号发送模块用于发送下行定位信号，所述下行测量结果接收模块用于接收所述用户设备根据所述定位信息测量所述下行定位信号的测量结果；或者，上行定位信号测量模块，用于测量所述用户设备根据所述定位信息发送的上行定位信号；
定位模块，用于根据所述下行定位信号的测量结果定位用户设备，或根据上行定位信号的测量结果定位用户设备。
另一方面，还提供了一种定位方法，该方法包括：
处于空闲态的用户设备获取由基站配置并通过广播方式发送的定位信息，所述处于空闲态的用户设备包括未通过无线资源控制(RRC)协议与所述基站建立空口连接的用户设备，所述定位信息包括定位所述用户设备所需的配置信息；及
所述用户设备根据所述定位信息测量所述基站发送的下行定位信号，以定位所述用户设备；或者，所述用户设备根据所述定位信息发送上行定位信号，以定位所述用户设备。
还提供了一种用于定位的用户设备，该用户设备包括：
定位信息接收模块，当所述用户设备未通过无线资源控制(RRC)协议与基站建立空口连接，所述定位信息接收模块获取由所述基站配置并通过广播方式发送的定位信息，所述定位信息包括定位用户设备所需的配置信息；
下行定位信号测量模块，用于根据所述定位信息测量所述基站发送的下行定位信号；或者，上行定位信号发送模块，用于根据所述定位信息发送上行定位信号。
采用上述实施例提供的方案，由于基站通过广播方式向处于空闲态的用户设备发送定位信息，用户设备可在空闲态下直接获取由基站配置的定位信息，用户设备无需先与基站建立RRC空口连接以获取定位所需的配置信息。因此，用户设备可在空闲态下根据定位信息实现定位，节省了基站与用户设备建立RRC空口连接的过程中产生的信令交互，避免了信令拥塞。
附图说明
为了更清楚地说明本发明实施例的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲， 在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1所示为根据本发明一个实施例的定位方法的流程图；
图2所示为根据本发明一个实施例的定位方法的另一流程图；
图3所示为根据本发明一个实施例的定位方法的流程图；
图4所示为根据本发明一个实施例的用户设备根据定位信息在触发时刻测量下行定位信号的示意图；
图5所示为根据本发明一个实施例的用户设备根据定位信息在触发时刻测量下行定位信号的另一示意图；
图6所示为根据本发明一个实施例的用户设备根据定位信息在触发时刻发送上行定位信号的示意图；
图7所示为根据本发明一个实施例的用户设备根据定位信息在触发时刻发送上行定位信号的另一示意图；
图8所示为根据本发明一个实施例的用于定位的基站的结构示意图；及
图9所示为根据本发明一个实施例中的用于定位的用户设备的结构示意图。
具体实施方式
为使本发明的目的、技术方案、及优点更加清楚明白，下面结合附图并举实施例，对本发明提供的技术方案进一步详细描述。
本发明的技术方案，可以应用于各种通信系统，例如：GSM，码分多址(code division multiple access，CDMA)系统，宽带码分多址(wideband code division multiple access wireless，WCDMA)系统，通用分组无线业务(general packet radio service，GPRS)系统，长期演进(long term evolution，LTE)系统等。
用户设备(user equipment，UE)，也可称之为移动终端(mobile terminal)、移动用户设备等，可以经无线接入网(RAN，radio access network)与一个或多个核心网进行通信，用户设备可以是移动终端，如移动电话(或称为“蜂窝”电话)和具有移动终端的计算机，例如，可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置，它们与无线接入网交换语言和/或数据。
基站，可以是GSM或CDMA中的基站(base transceiver station，BTS)，也可以是WCDMA中的基站(NodeB)，还可以是LTE中的演进型基站(evolutional Node B，eNB或e-NodeB)。
图1所示为根据本发明一个实施例的定位方法的流程图100。图1的方法由基站执行。尽管图1公开了某些特定的步骤，但这些步骤仅仅作为示例。本发明同样适用于图1所示步骤的变形或其他步骤。
在步骤102中，基站配置定位信息。
在一个实施例中，定位信息包括定位用户设备所需的配置信息。例如，定位信息包括通过OTDOA定位技术定位用户设备所需的配置信息、或通过ECID定位技术定位所需的配置信息、或通过UTDOA定位技术定位用户设备所需的配置信息、或通过A-GPS定位技术定位用户设备所需的辅助信息。
其中，OTDOA定位技术的配置信息包括下行导频信号的配置信息。下行导频信号包括但不限于定位参考信号(positioning reference signal,PRS)或下行物理同步信号。
PRS的配置信息包括但不限于PRS的传输带宽信息、频点信息或传输子帧配置信息。此外，PRS的配置信息还可包括PRS使用的循环前缀的类型，例如，正常(normal)类型或延长(extended)类型。考虑到多基站配置的多个PRS并非同步，PRS的配置信息还可包括多个基站之间系统时间的偏差，例如，时隙偏差或子帧偏差。
下行物理同步信号包括主同步信号(primary synchronization signal，PSS)和副同步信号(secondary synchronization signal，SSS)。PSS或SSS的配置信息包括但不限于工作频点、循环前缀类型或PCI。
ECID定位技术的配置信息或UTDOA定位技术的配置信息包括下行导频信号的配置信息或上行导频信号的配置信息。下行导频信号包括但不限于小区参考信号(cell reference signal,CRS)。上行导频信号包括但不限于探测参考信号(sounding reference signal,SRS)、解调参考信号(demodulation reference signal,DMRS)和物理随机接入信道(physical random access channel，PRACH)。
CRS的配置信息包括但不限于用户设备所在站点的系统带宽、工作频点、循环前缀类型、物理小区标识(physical cell identifier，PCI)，或如参考信号接收功率(reference signal receiving power，RSRP)和参考信号接收质量(reference signal receiving quality，RSRQ)的测量参数。
SRS、DMRS和PRACH的配置信息包括但不限于物理资源位置(如频域RB位置，时域子帧号或者系统帧号)、序列派生参数(如根序列标号，循环移位)或循环前缀类型等。
A-GPS定位技术的辅助信息包括全球定位系统(global positioning system，GPS)辅助信息，例如GPS辅助信息包括GNSS公共辅助数据(GNSS-common assist data)中的GNSS参考时间(GNSS-reference time)、GNSS参考位置(GNSS-reference location)、GNSS电离层模型(GNSS-ionospheric model)或GNSS地球定向参数(GNSS-earth orientation parameter)。或者，GPS辅助信息包括GNSS通用辅助数据元件(GNSS-Generic Assist Data Element)中的GNSS身份(GNSS ID)、SBAS身份(SBAS ID)、GNSS时间模型(GNSS time models)、GNSS差分修正(GNSS differential corrections)、GNSS导航模型(GNSS navigation model)、GNSS实时完好性(GNSS real time integrity)、GNSS 数据位辅助(GNSS data bit assistance)、GNSS获取辅助(GNSS acquisition assistance)、GNSS历书(GNSS almanac)、GNSS UTC模型(GNSS UTC model)或GNSS辅助信息(GNSS auxiliary information)。
在一个实施例中，定位信息还可以包括第一触发配置信息。例如，第一触发配置信息用于指示用户设备测量下行定位信号的测量起始时刻、测量时长或测量周期中的任一参数。用户设备根据该第一触发配置信息在触发时刻测量下行定位信号(如下行导频信号)。因此，基站通过第一触发配置信息实现对用户设备定位的控制。
在另一个实施例中，定位信息还可以包括第二触发配置信息。例如，第二触发配置信息用于指示用户设备发送上行定位信号的发送起始时刻、发送时长或发送周期中的任一参数。用户设备根据该第二触发配置信息在触发时刻发送上行定位信号(如上行导频信号)。因此，基站通过第二触发配置信息实现对用户设备定位的控制。
在步骤104中，基站通过广播方式向处于空闲态的用户设备发送定位信息。其中，处于空闲态的用户设备包括未通过无线资源控制(radio resource control,RRC)协议与基站建立空口连接的用户设备。处于空闲态的用户设备还包括未通过RRC协议与基站建立空口连接并且未通过轻量级表示协议(light presentation protocol,LPP)与增强服务移动定位中心(enhanced-serving mobile location center,E-SMLC)建立高层连接的用户设备。
在用户设备处于空闲态下，基站通过广播的方式向用户设备发送定位信息。例如，基站通过系统消息向用户设备发送定位信息。进而，用户设备可由其所驻留的小区系统信息中获取配置信息。在此方式下，定位信息可以是小区级的配置信息，即，处于同一小区内的用户设备使用相同的配置信息。或者，基站通过多播信道向用户设备发送定位信息。一个区域由若干个小区构成。在此方式下，定位信息可以是区域级的配 置信息，即，处于同一区域内各小区的用户设备使用相同的配置信息。例如，在同一多播广播单频网络(multicast broadcast single frequency network,MBSFN)的区域内，基站通过物理多播信道(physical multicast channel，PMCH)向用户设备提供定位配置信息。
当定位信息包括下行定位信号(如，下行导频信号)的配置信息时，基站执行步骤106。在步骤106中，基站接收用户设备根据定位信息测量下行定位信号的测量结果，并根据下行定位信号的测量结果定位用户设备。该下行定位信号是由基站发送。
当定位信息包括上行定位信号(如，上行导频信号)的配置信息时，基站执行步骤108。在步骤108中，基站测量用户设备根据定位信息发送的上行定位信号，并根据上行定位信号的测量结果定位用户设备。
由于基站通过广播方式向处于空闲态的用户设备发送定位信息，用户设备可在空闲态下直接获取由基站配置的定位信息，用户设备无需先与基站建立RRC空口连接以获取定位所需的配置信息。因此，用户设备可在空闲态下根据定位信息实现定位，节省了基站与用户设备建立RRC空口连接的过程中产生的信令交互，避免了信令拥塞。此外，还降低了基站定位用户设备所消耗的能耗。
图2所示为根据本发明一个实施例的定位方法的流程图200。图2的方法由基站执行。图2将结合图1进行描述。
在步骤202中，基站配置定位信息。
在步骤204中，基站通过广播方式向处于空闲态的用户设备发送定位信息。步骤202、204分别与图1中的步骤102、104相同，在此不再赘述。
在图2的实施例中，基站执行步骤204后，执行步骤205。然而，本发明并不受此限制，在其他实施例中，步骤205可与步骤202或204同时执行。
在步骤205中，基站向用户设备发送触发指示信息。触发指示信息包括第一触发指示信息或第二触发指示信息。其中，第一触发指示信息用于指示用户设备在后续某一时刻(例如，后续某一帧或子帧内)是否测量下行定位信号(如，下行导频信号)。第二触发指示信息用于指示用户设备在后续某一时刻(例如，后续某一帧或子帧内)是否发送上行定位信号(如，上行导频信号)。
例如，基站通过寻呼信道向用户设备发送触发指示信息；或者，基站通过物理下行控制信道(physical downlink control channel，PDCCH)或增强型物理下行控制信道(enhanced physical downlink control channel，EPDCCH)向用户设备发送触发指示信息；或者，基站通过媒体访问控制(media access control，MAC)层信令向用户设备发送触发指示信息。
例如，当基站通过寻呼信道向用户设备发送第一触发指示信息，可通过若干比特(1或2比特)信息指示用户设备在后续某一帧(或子帧)内是否测量下行定位信号。当基站通过PDCCH或EPDCCH向所述用户设备发送第一触发指示信息时，可通过若干比特(1或2比特)信息指示用户设备在后续某一帧(或子帧)内是否测量下行定位信号。当基站通过MAC层信令向用户设备发送第一触发指示信息时，可通过下行数据信道所传输数据块中所包含的MAC层信令来指示用户设备在后续某一帧(或子帧)内是否测量下行定位信号。
当基站通过寻呼信道向用户设备发送第二触发指示信息，可通过若干比特(1或2比特)信息指示用户设备在后续某一帧(或子帧)内是否发送上行定位信号。当基站通过PDCCH或EPDCCH向所述用户设备发送第二触发指示信息时，可通过若干比特(1或2比特)信息指示用户设备在后续某一帧(或子帧)内是否发送上行定位信号。当基站通过MAC CE向用户设备发送第二触发指示信息时，可通过下行数据信道所传输数据块中所包含的MAC层信令来指示用户设备在后续某一帧(或 子帧)内是否发送上行定位信号。
因此，基站通过第一触发指示信息指示用户设备后续某一时刻是否测量下行定位信号，或通过第二触发指示信息指示用户设备后续某一时刻是否发送上行定位信号，实现对用户设备定位的控制。
图3所示为根据本发明一个实施例的定位方法的流程图300。图3的方法由用户设备执行，并且与图1的方法相对应。因此，将适当省略重复的描述。
在步骤302中，处于空闲态的用户设备获取由基站配置并通过广播方式发送的定位信息。其中，处于空闲态的用户设备包括未通过RRC协议与基站建立空口连接的用户设备。
在一个实施例中，定位信息包括定位用户设备所需的配置信息。例如，定位信息包括通过OTDOA定位技术定位用户设备所需的配置信息、或通过ECID定位技术定位用户设备所需的配置信息、或通过UTDOA定位技术定位用户设备所需的配置信息、或通过A-GPS定位技术定位用户设备所需的辅助信息。
举例来说，步骤302可包括：用户设备获取基站通过系统消息发送的所述定位信息；或者，用户设备获取基站通过多播信道发送的定位信息。
当定位信息包括下行定位信号(如，下行导频信号)的配置信息时，用户设备执行步骤304。在步骤304中，用户设备根据定位信息测量基站发送的下行定位信号，以定位用户设备。
在一个实施例中，定位信息还包括第一触发配置信息。该第一触发配置信息用于指示用户设备测量下行定位信号的测量起始时刻、测量时长或测量周期中的任一参数。例如，用户设备包含计时器和测量模块，计时器根据该第一触发配置信息计时，在触发时刻触发测量模块测量下行定位信号。用户设备根据第一触发配置信息，在触发时刻测量下行定 位信号的操作将结合图4进一步描述。
在另一个实施例中，用户设备接收基站发送的第一触发指示信息。该第一触发指示信息用于指示用户设备在后续某一时刻(例如，后续某一帧或子帧内)是否测量下行定位信号。用户设备根据第一触发指示信息，在触发时刻测量下行定位信号的操作将结合图5进一步描述。
当定位信息包括上行定位信号(如，上行导频信号)的配置信息时，用户设备执行步骤306。在步骤306中，用户设备根据定位信息发送上行定位信号，以定位所述用户设备。
在一个实施例中，定位信息还包括第二触发配置信息。该第二触发配置信息用于指示用户设备发送上行定位信号的发送起始时刻、发送时长或发送周期中的任一参数。例如，用户设备包含计时器和发送模块，计时器根据该第二触发配置信息计时，在触发时刻触发发送模块发送上行定位信号。用户设备根据第二触发配置信息，在触发时刻发送上行定位信号的操作将结合图6进一步描述。
在另一个实施例中，用户设备接收基站发送的第二触发指示信息。该第二触发指示信息用于指示用户设备在后续某一时刻(例如，后续某一帧或子帧内)是否发送上行定位信号。用户设备根据第二触发指示信息，在触发时刻发送上行定位信号的操作将结合图7进一步描述。
由于用户设备可在空闲态下直接获取由基站配置的定位信息，用户设备无需先与基站建立RRC空口连接以获取定位所需的配置信息。因此，用户设备可在空闲态下根据定位信息实现定位，节省了用户设备与基站建立RRC空口连接的过程中产生的信令交互，避免了信令拥塞。此外，还降低了用户设备定位所消耗的能耗。
图4所示为根据本发明一个实施例的步骤304的示意图304_A。在图4的实施例中，定位信息还包括第一触发配置信息。该第一触发配置信息用于指示用户设备测量下行定位信号的测量起始时刻、测量时长或 测量周期中的任一参数。用户设备包括计时器。
如图4所示，在步骤402中，用户设备从定位信息中获取第一触发配置信息。
在步骤404中，计时器根据第一触发配置信息计时，并判断计时器是否超时。当计时器超时，表示到达触发时刻，前进至步骤406。
在步骤406中，用户设备测量下行定位信号。
图5所示为根据本发明一个实施例的步骤304的另一示意图304_B。
在步骤502中，用户设备接收基站发送的第一触发指示信息。第一触发指示信息用于指示用户设备在后续某一时刻(例如，后续某一帧或子帧)内是否测量下行定位信号。例如，用户设备接收基站通过寻呼信道发送的第一触发指示信息；或者，用户设备接收基站通过物理下行控制信道发送的第一触发指示信息；或者，用户设备接收基站通过MAC层信令发送的第一触发指示信息。
在步骤504中，用户设备根据第一触发指示信息，判断在后续某一时刻(例如，后续某一帧或子帧)内是否测量下行定位信号。如果第一触发指示信息指示用户设备在后续某一时刻内测量下行定位信号，则前进至步骤506。
在步骤506中，用户设备测量下行定位信号。
图6所示为根据本发明一个实施例的步骤306的示意图306_A。在图6的实施例中，定位信息还包括第二触发配置信息。该第二触发配置信息用于指示用户设备发送所述上行定位信号的发送起始时刻、发送时长或发送周期中的任一参数。用户设备包括计时器。
如图6所示，在步骤602中，用户设备从定位信息中获取第二触发配置信息。
在步骤604中，计时器根据第二触发配置信息计时，并判断计时器是否超时。当计时器超时，表示到达触发时刻，前进至步骤606。
在步骤606中，用户设备发送上行定位信号。
图7所示为根据本发明一个实施例的步骤306的另一示意图306_B。
在步骤702中，用户设备接收基站发送的第二触发指示信息。第二触发指示信息用于指示用户设备在后续某一时刻(如，后续某一帧或子帧)内是否发送上行定位信号。例如，用户设备接收基站通过寻呼信道发送的第二触发指示信息；或者，用户设备接收基站通过物理下行控制信道发送的第二触发指示信息；或者，用户设备接收基站通过MAC层信令发送的第二触发指示信息。
在步骤704中，用户设备根据第二触发指示信息，判断在后续某一时刻(例如，后续某一帧或子帧)内是否发送上行定位信号。如果第二触发指示信息指示用户设备在后续某一时刻内发送上行定位信号，则前进至步骤806。
在步骤706中，用户设备发送上行定位信号。
图8所示为根据本发明一个实施例的用于定位的基站800的结构示意图。图8将结合图1至图2进行描述。
在图8所示的实施例中，基站800包括定位信息配置模块802、定位信息发送模块804，以及定位模块814。定位信息发送模块804耦合至所述定位信息配置模块802。其中，定位信息配置模块802和定位模块814可由基站800的基站控制器(base station controller,BSC)实现；定位信息发送模块804可由基站800的基站收发台(base transceiver station,BTS)实现。在一个实施例中，基站800还包括下行定位信号发送模块808和下行测量结果接收模块810。在另一个实施例中，基站800还包括上行定位信号测量模块812。下行定位信号发送模块808、下行测量结果接收模块810和上行定位信号测量模块812均可由基站800的基站收发台实现。
在一个实施例中，定位信息配置模块802用于配置定位信息，并将 该定位信息发送至定位信息发送模块804。定位信息包括定位用户设备所需的配置信息。例如，定位信息包括通过OTDOA定位技术定位用户设备所需的配置信息、或通过ECID定位技术定位所需的配置信息、或通过UTDOA定位技术定位用户设备所需的配置信息、或通过A-GPS定位技术定位用户设备所需的辅助信息。
在一个实施例中，定位信息还可以包括第一触发配置信息。例如，第一触发配置信息用于指示用户设备测量下行定位信号的测量起始时刻、测量时长或测量周期中的任一参数。用户设备根据该第一触发配置信息在触发时刻测量下行定位信号(如下行导频信号)。
在另一个实施例中，定位信息还可以包括第二触发配置信息。例如，第二触发配置信息用于指示用户设备发送上行定位信号的发送起始时刻、发送时长或发送周期中的任一参数。用户设备根据该第二触发配置信息在触发时刻发送上行定位信号(如上行导频信号)。
定位信息发送模块804用于通过广播方式将定位信息发送至处于空闲态的用户设备。其中，处于空闲态的用户设备包括未通过RRC协议与基站建立空口连接的用户设备。处于空闲态的用户设备还包括未通过RRC协议与基站建立空口连接且未通过LPP与E-SMLC建立高层连接的用户设备。
例如，定位信息发送模块804通过系统消息将定位信息发送至处于空闲态的用户设备。或者，定位信息发送模块804通过多播信道将定位信息发送至处于空闲态的用户设备。
下行定位信号发送模块808用于发送下行定位信号。在一个实施例中，当定位信息包括下行定位信号(如，下行导频信号)的配置信息时，下行测量结果接收模块810接收用户设备根据定位信息测量下行定位信号的测量结果，并将下行定位信号的测量结果发送至定位模块814。定位模块814根据下行定位信号的测量结果定位用户设备。
当定位信息包括上行定位信号(如，上行导频信号)的配置信息时，上行定位信号测量模块812测量用户设备根据定位信息发送的上行定位信号，并将上行定位信号的测量结果发送至定位模块814。定位模块814根据上行定位信号的测量结果定位用户设备。
由于基站800通过广播方式向处于空闲态的用户设备发送定位信息，用户设备可在空闲态下直接获取由基站800配置的定位信息，用户设备无需先与基站800建立RRC空口连接以获取定位所需的配置信息。因此，用户设备可在空闲态下根据定位信息实现定位，节省了基站800与用户设备建立RRC空口连接的过程中产生的信令交互，避免了信令拥塞。此外，还降低了基站800定位用户设备所消耗的能耗。
在一个实施例中，基站800还包括触发指示信息发送模块806。触发指示信息发送模块806可由基站800的基站收发台实现。触发指示信息发送模块806用于向用户设备发送触发指示信息。触发指示信息包括第一触发指示信息或第二触发指示信息。其中，第一触发指示信息用于指示用户设备在后续某一时刻(例如，后续某一帧或子帧内)是否测量下行定位信号(如，下行导频信号)。第二触发指示信息用于指示用户设备在后续某一时刻(例如，后续某一帧或子帧内)是否发送上行定位信号(如，上行导频信号)。
例如，触发指示信息发送模块806通过寻呼信道向用户设备发送触发指示信息；或者，触发指示信息发送模块806通过PDCCH或EPDCCH向用户设备发送触发指示信息；或者，触发指示信息发送模块806通过MAC层信令向用户设备发送触发指示信息。
例如，当触发指示信息发送模块806通过寻呼信道向用户设备发送第一触发指示信息，可通过若干比特(1或2比特)信息指示用户设备在后续某一帧(或子帧)内是否测量下行定位信号。当触发指示信息发送模块806通过PDCCH或EPDCCH向所述用户设备发送第一触发指示 信息时，可通过若干比特(1或2比特)信息指示用户设备在后续某一帧(或子帧)内是否测量下行定位信号。当触发指示信息发送模块806通过MAC层信令向用户设备发送第一触发指示信息时，可通过下行数据信道所传输数据块中所包含的MAC层信令来指示用户设备在后续某一帧(或子帧)内是否测量下行定位信号。
当触发指示信息发送模块806通过寻呼信道向用户设备发送第二触发指示信息，可通过若干比特(1或2比特)信息指示用户设备在后续某一帧(或子帧)内是否发送上行定位信号。当触发指示信息发送模块806通过PDCCH或EPDCCH向所述用户设备发送第二触发指示信息时，可通过若干比特(1或2比特)信息指示用户设备在后续某一帧(或子帧)内是否发送上行定位信号。当触发指示信息发送模块806通过MAC CE向用户设备发送第二触发指示信息时，可通过下行数据信道所传输数据块中所包含的MAC层信令来指示用户设备在后续某一帧(或子帧)内是否发送上行定位信号。
图9所示为根据本发明一个实施例的用于定位的用户设备900的结构示意图。图9将结合图3至图7进行描述。
在图9所示的实施例中，用户设备900包括定位信息接收模块902、上行定位信号发送模块906或下行定位信号测量模块908。定位信息接收模块902可由用户设备900的接收器实现。上行定位信号发送模块906可由用户设备900的发射器实现。下行定位信号测量模块908可由用户设备900的处理器实现。
在一个实施例中，当用户设备未通过RRC协议与基站建立空口连接时，用户设备处于空闲态，此时定位信息接收模块902获取由基站配置并通过广播方式发送的定位信息。在一个实施例中，定位信息包括定位用户设备所需的配置信息。例如，定位信息包括通过OTDOA定位技术定位用户设备所需的配置信息、或通过ECID定位技术定位用户设备所 需的配置信息、或通过UTDOA定位技术定位用户设备所需的配置信息、或通过A-GPS定位技术定位用户设备所需的辅助信息。
举例来说，当用户设备处于空闲态时，定位信息接收模块902接收基站通过系统消息发送的所述定位信息；或者，定位信息接收模块902接收基站通过多播信道发送的定位信息。
当定位信息包括下行定位信号(如，下行导频信号)的配置信息时，下行定位信号测量模块908根据定位信息测量基站发送的下行定位信号，以定位用户设备。
在一个实施例中，用户设备900还包括计时器910。定位信息还包括第一触发配置信息。该第一触发配置信息用于指示用户设备900测量下行定位信号的测量起始时刻、测量时长或测量周期中的任一参数。计时器910根据该第一触发配置信息计时，当计时器910超时，下行定位信号测量模块908在触发时刻测量下行定位信号。
在另一个实施例中，用户设备900还包括触发指示信息接收模块904。触发指示信息接收模块904也可由用户设备900的接收器实现。触发指示信息接收模块904接收基站发送的第一触发指示信息。该第一触发指示信息用于指示用户设备900在后续某一时刻(例如，后续某一帧或子帧内)是否测量下行定位信号。下行定位信号测量模块908根据第一触发指示信息，在触发时刻测量下行定位信号。
当定位信息包括上行定位信号(如，上行导频信号)的配置信息时，上行定位信号发送模块906根据定位信息发送上行定位信号，以定位所述用户设备。
在一个实施例中，定位信息还包括第二触发配置信息。该第二触发配置信息用于指示用户设备900发送上行定位信号的发送起始时刻、发送时长或发送周期中的任一参数。计时器910根据该第二触发配置信息计时，当计时器910超时，上行定位信号发送模块906在触发时刻发送 上行定位信号。
在另一个实施例中，触发指示信息接收模块904接收基站发送的第二触发指示信息。该第二触发指示信息用于指示用户设备900在后续某一时刻(例如，后续某一帧或子帧内)是否发送上行定位信号。上行定位信号发送模块906根据第二触发指示信息，在触发时刻发送上行定位信号。
由于用户设备900可在空闲态下直接获取由基站配置的定位信息，用户设备900无需先与基站建立RRC空口连接以获取定位所需的配置信息。因此，用户设备900可在空闲态下根据定位信息实现定位，节省了用户设备900与基站建立RRC空口连接的过程中产生的信令交互，避免了信令拥塞。此外，还降低了用户设备900定位所消耗的能耗。
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。

Claims (16)

  1. 一种定位方法，其特征在于，包括：
    基站配置定位信息，所述定位信息包括定位用户设备所需的配置信息；
    所述基站通过广播方式向处于空闲态的用户设备发送所述定位信息，所述处于空闲态的用户设备包括未通过无线资源控制(RRC)协议与所述基站建立空口连接的用户设备；及
    所述基站接收所述用户设备根据所述定位信息测量下行定位信号的测量结果,并根据所述下行定位信号的测量结果定位所述用户设备，所述下行定位信号是由所述基站发送；或者，所述基站测量所述用户设备根据所述定位信息发送的上行定位信号,并根据所述上行定位信号的测量结果定位所述用户设备。
  2. 根据权利要求1所述的定位方法，其特征在于，所述定位信息还包括第一触发配置信息，所述第一触发配置信息用于指示所述用户设备测量所述下行定位信号的测量起始时刻、测量时长或测量周期中的任一参数。
  3. 根据权利要求1所述的定位方法，其特征在于，所述定位信息还包括第二触发配置信息，所述第二触发配置信息用于指示所述用户设备发送所述上行定位信号的发送起始时刻、发送时长或发送周期中的任一参数。
  4. 根据权利要求1所述的定位方法，其特征在于，所述方法还包括：
    所述基站向所述用户设备发送触发指示信息；
    所述触发指示信息包括第一触发指示信息或第二触发指示信息，所述第一触发指示信息用于指示所述用户设备在后续某一时刻内是否测 量下行定位信号，所述第二触发指示信息用于指示所述用户设备在后续某一时刻内是否发送上行定位信号。
  5. 一种定位方法，其特征在于，包括：
    处于空闲态的用户设备获取由基站配置并通过广播方式发送的定位信息，所述处于空闲态的用户设备包括未通过无线资源控制(RRC)协议与所述基站建立空口连接的用户设备，所述定位信息包括定位所述用户设备所需的配置信息；及
    所述用户设备根据所述定位信息测量所述基站发送的下行定位信号，以定位所述用户设备；或者，所述用户设备根据所述定位信息发送上行定位信号，以定位所述用户设备。
  6. 根据权利要求5所述的定位方法，其特征在于，所述定位信息还包括第一触发配置信息，所述第一触发配置信息用于指示所述用户设备测量所述下行定位信号的测量起始时刻、测量时长或测量周期中的任一参数；
    所述用户设备根据所述定位信息测量下行定位信号，包括：
    所述用户设备根据所述第一触发配置信息在触发时刻测量所述下行定位信号。
  7. 根据权利要求5所述的定位方法，其特征在于，所述定位信息还包括第二触发配置信息，所述第二触发配置信息用于指示所述用户设备发送所述上行定位信号的发送起始时刻、发送时长或发送周期中的任一参数；
    所述用户设备根据所述定位信息发送上行定位信号，包括：
    所述用户设备根据所述第二触发配置信息在触发时刻发送所述上行定位信号。
  8. 根据权利要求5所述的定位方法，其特征在于，所述方法还包括：
    所述用户设备接收所述基站发送的触发指示信息；
    所述触发指示信息包括第一触发指示信息或第二触发指示信息，所述第一触发指示信息用于指示所述用户设备在后续某一时刻内是否测量下行定位信号，所述第二触发指示信息用于指示所述用户设备在后续某一时刻内是否发送上行定位信号。
  9. 一种用于定位的基站，其特征在于，包括：
    定位信息配置模块，用于配置定位信息，所述定位信息包括定位用户设备所需的配置信息；
    定位信息发送模块，耦合至所述定位信息配置模块，用于通过广播方式将所述定位信息发送至处于空闲态的用户设备，所述处于空闲态的用户设备包括未通过无线资源控制(RRC)协议与所述基站建立空口连接的用户设备；
    下行定位信号发送模块和下行测量结果接收模块,所述下行定位信号发送模块用于发送下行定位信号，所述下行测量结果接收模块用于接收所述用户设备根据所述定位信息测量所述下行定位信号的测量结果；或者，上行定位信号测量模块，用于测量所述用户设备根据所述定位信息发送的上行定位信号；
    定位模块，用于根据所述下行定位信号的测量结果定位所述用户设备，或根据所述上行定位信号的测量结果定位所述用户设备。
  10. 根据权利要求9所述的基站，其特征在于，所述定位信息还包括第一触发配置信息，所述第一触发配置信息用于指示所述用户设备测量所述下行定位信号的测量起始时刻、测量时长或测量周期中的任一参数。
  11. 根据权利要求9所述的基站，其特征在于，所述定位信息还包括第二触发配置信息，所述第二触发配置信息用于指示所述用户设备发送所述上行定位信号的发送起始时刻、发送时长或发送周期中的任一参 数。
  12. 根据权利要求9所述的基站，其特征在于，所述基站还包括：
    触发指示信息发送模块，用于向所述用户设备发送触发指示信息；
    所述触发指示信息包括第一触发指示信息或第二触发指示信息，所述第一触发指示信息用于指示所述用户设备在后续某一时刻内是否测量下行定位信号，所述第二触发指示信息用于指示所述用户设备在后续某一时刻内是否发送上行定位信号。
  13. 一种用于定位的用户设备，其特征在于，包括：
    定位信息接收模块，当所述用户设备未通过无线资源控制(RRC)协议与基站建立空口连接时，所述定位信息接收模块获取由所述基站配置并通过广播方式发送的定位信息，所述定位信息包括定位用户设备所需的配置信息；
    下行定位信号测量模块，用于根据所述定位信息测量所述基站发送的下行定位信号；或者，上行定位信号发送模块，用于根据所述定位信息发送上行定位信号。
  14. 根据权利要求13所述的用户设备，其特征在于，所述定位信息还包括第一触发配置信息，所述第一触发配置信息用于指示所述用户设备测量所述下行定位信号的测量起始时刻、测量时长或测量周期中的任一参数；
    所述用户设备还包括计时器，所述计时器根据所述第一触发配置信息计时，当所述计时器超时，所述下行定位信号测量模块在触发时刻测量所述下行定位信号。
  15. 根据权利要求13所述的用户设备，其特征在于，所述定位信息还包括第二触发配置信息，所述第二触发配置信息用于指示所述用户设备发送所述上行定位信号的发送起始时刻、发送时长或发送周期中的任一参数；
    所述用户设备还包括计时器，所述计时器根据所述第二触发配置信息计时，当所述计时器超时，所述上行定位信号发送模块在触发时刻发送所述上行定位信号。
  16. 根据权利要求13所述的用户设备，其特征在于，所述定位设备还包括：
    触发指示信息接收模块，用于接收所述基站发送的触发指示信息；
    所述触发指示信息包括第一触发指示信息或第二触发指示信息，所述第一触发指示信息用于指示所述用户设备在后续某一时刻内是否测量下行定位信号，所述第二触发指示信息用于指示所述用户设备在后续某一时刻内是否发送上行定位信号。
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