WO2010078806A1 - 辅助检测信令发送方法 - Google Patents

辅助检测信令发送方法 Download PDF

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Publication number
WO2010078806A1
WO2010078806A1 PCT/CN2009/075998 CN2009075998W WO2010078806A1 WO 2010078806 A1 WO2010078806 A1 WO 2010078806A1 CN 2009075998 W CN2009075998 W CN 2009075998W WO 2010078806 A1 WO2010078806 A1 WO 2010078806A1
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WO
WIPO (PCT)
Prior art keywords
base station
femto
auxiliary detection
carrier frequency
detection signaling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2009/075998
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English (en)
French (fr)
Inventor
刘锟
鲁照华
刘颖
谢峰
刘扬
曲红云
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ZTE Corp
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ZTE Corp
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Filing date
Publication date
Application filed by ZTE Corp filed Critical ZTE Corp
Priority to EP09837363.2A priority Critical patent/EP2375837B1/en
Priority to JP2011544772A priority patent/JP5655007B2/ja
Priority to US13/143,198 priority patent/US8977253B2/en
Publication of WO2010078806A1 publication Critical patent/WO2010078806A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H04W4/08—User group management
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of mobile communication technologies, and in particular, to a method for transmitting an auxiliary detection signal in a wireless communication system. Background technique
  • a base station refers to a device that provides services to a terminal, and the base station communicates with the terminal through uplink and downlink.
  • the downlink (DL) refers to a direction from the base station to the terminal, which is also called a forward chain.
  • Uplink (UpLink, UL) refers to the direction of the terminal to the base station, also known as the reverse link.
  • a plurality of terminals can simultaneously transmit data to the base station through the uplink, or can simultaneously receive data from the base station through the downlink.
  • the quality of wireless coverage in a mobile network is key to determining that a terminal enjoys high-speed data, voice, and video services.
  • Macro Base Macro BS can also be called Macro Cell; the other is to install a home base station indoors (Femto Small base stations with low transmission power such as BS or Femto Cell), small base station (Micro BS or Micro Cell), and micro base station (Pico BS or Pico Cell).
  • the home base station is also called a personal base station.
  • the traditional macro base station is close to the capacity limit of frequency use, and then increasing the number of macro base stations with higher power will only cause more radiation pollution, and significantly improve indoor coverage; but using Femto BS Small base stations such as Pico BS can not only solve the coverage problem indoors and hotspots well, but also increase the system capacity more in the existing spectrum resources.
  • Femto BS can provide services to all users, or only a specific group of grants.
  • the right user provides the service. Due to signal fading, interference, or higher quality of service
  • a mobile terminal may move from an air interface of one base station (called a serving base station) to an air interface of another base station (referred to as a target base station). This process is switching.
  • a serving base station an air interface of another base station
  • a target base station an air interface of another base station
  • This process is switching.
  • the terminal may need to switch between Macro BS, Femto BS, and Pico BS.
  • the BS recorded in the area list is switched, and the handover method has a large signaling overhead.
  • the MS may search for a large number of Femto BSs and Pico BSs according to the neighbor list information, and these base stations may not be suitable for the MS.
  • the other is that the MS automatically searches for Femto BS and Pico BS suitable for handover. Since Femto BS and Pico BS may work at different carrier frequencies with the Macro BS, and the number is more than 4, the method will increase the search complexity of the MS. And is not conducive to saving electricity. Summary of the invention
  • the present invention provides a method for transmitting auxiliary detection signaling, which is used to solve the problem of large signaling overhead and MS search in the prior art when the MS switches between the Macro BS, the Femto BS, the Micro BS, and the Pico BS. A more complex issue.
  • An auxiliary detection signaling sending method each base station in a base station group respectively determines that it is a first base station, and the method includes:
  • the base stations other than the first base station in the base station group respectively send auxiliary detection signaling on the carrier frequency of the first base station.
  • the set of base stations includes all or part of base stations within a predetermined range.
  • the predetermined range of base stations includes:
  • the carrier frequency includes: one or more carrier frequencies at which the first base station operates.
  • the location of the time-frequency resource for sending the auxiliary detection signaling is determined by any of the following methods: by a standard default configuration;
  • the upper layer network element includes one of the following: a base station controller, an access service network, a connection service network, and a core network gateway.
  • the method further includes:
  • the first base station sends the location information of the time-frequency resource to the terminal in a predetermined manner, where the predetermined manner includes one of the following: unicast, multicast, or broadcast.
  • the method further includes: sending, by the upper layer network element, the location information to the first base station.
  • the time-frequency resource is located in a downlink subframe, or is located in a transition interval between an uplink subframe and a downlink subframe.
  • the auxiliary detection signaling is sent in a signaling format agreed with the terminal, and the content carried by the auxiliary detection signaling is content agreed with the terminal.
  • the content carried by the auxiliary detection signaling sent by one of the other base stations includes one of the following or any combination thereof: a pilot sequence of the base station, a synchronization channel of the base station, a type of the base station, and an index of the base station No., an access restriction condition of the base station to the terminal, indication information of whether the base station can provide a service, and indication information of whether the base station allows more terminal access.
  • the restriction condition includes: a type of the terminal that the base station allows access, and/or a terminal identifier that allows access, and/or a terminal group identification that allows access.
  • the time-frequency resources occupied by the other base station transmitting the auxiliary detection signaling on the carrier frequency of the first base station are all the same or partially identical or completely different.
  • the time-frequency resources occupied by the auxiliary detection signaling on the carrier frequency of the first base station is the same; and the auxiliary detection signaling sent by each base station is mutually orthogonal or quasi-orthogonal Codeword sequence.
  • the auxiliary detection signaling sent by each base station is a predetermined sequence as a spreading code.
  • the method further includes:
  • the terminal receives all or part of the auxiliary detection signaling sent by the other base station.
  • the method further includes:
  • the terminal determines the target base station for handover according to the received all or part of the auxiliary detection signaling.
  • the method further includes:
  • the terminal sends a request to the current serving base station to request related information of the target base station.
  • a method for assisting detection signaling is sent, including:
  • the base station For a base station within a base station group, the base station transmits auxiliary detection signaling on a common carrier frequency.
  • the set of base stations includes all or part of base stations within a predetermined range.
  • the base station of the predetermined range includes:
  • a plurality of base stations operating on all or part of available carrier frequency resources including home base stations, small base stations, micro base stations or macro base stations.
  • the common carrier frequency includes: one or more carrier frequencies that the base station in the base station group can send signaling.
  • the location information of the time-frequency resource that the base station in the base station group separately transmits the auxiliary detection signaling is determined by any one of the following methods:
  • the upper layer network element includes one of the following: a base station controller, an access service network, a connection service network, and a core network gateway.
  • the method further includes:
  • the base station transmits the information of the common carrier frequency in a predetermined manner, where the predetermined manner includes one of the following: unicast, multicast, or broadcast.
  • the method further includes: sending, by the upper layer network element, information about the common carrier frequency to the base station.
  • the time-frequency resource is located in a downlink subframe, or is located in a transition interval between an uplink subframe and a downlink subframe.
  • the auxiliary detection signaling is sent in a signaling format agreed with the terminal, and the content carried by the auxiliary detection signaling is content agreed with the terminal.
  • the content carried by the auxiliary detection signaling includes one or any combination of the following: a pilot sequence of the base station;
  • the type of the base station is the type of the base station
  • the base station can provide indication information of the service
  • the base station allows indication information of more terminal access.
  • the restriction condition includes: a type of the terminal that the base station allows access, and/or a terminal identifier that allows access, and/or a terminal group identification that allows access.
  • the time-frequency resources occupied by the base stations in the base station group transmitting the auxiliary detection signaling on the same common carrier frequency are identical or partially identical or completely different.
  • the time-frequency resources used by the base stations in the base station group to transmit the auxiliary detection signaling are the same on the same common carrier frequency, and the auxiliary detection signaling sent by each base station is a mutually orthogonal or quasi-orthogonal code sequence.
  • the time-frequency resources used by the base stations in the base station group to transmit the auxiliary detection signaling are the same on the same common carrier frequency, and the auxiliary detection signaling sent by each base station is to expand the preset information by using a predetermined sequence as a spreading code.
  • the method further includes:
  • the terminal under the base station group receives the auxiliary detection signaling on the common carrier frequency.
  • the method further includes:
  • the terminal determines the target base station to be handed over according to the received auxiliary detection signaling. After the terminal receives the auxiliary detection signaling on the common carrier frequency, the method further includes Determining, by the terminal, the target base station that needs to acquire information according to the received auxiliary detection signaling;
  • the terminal sends a request to the current serving base station to request related information of the target base station.
  • the auxiliary detection signaling is sent on the working carrier frequency or the common carrier frequency of the other base station by each base station in the wireless communication network, so that the MS only needs to search for one carrier frequency, and each base station can be obtained.
  • the auxiliary detection signaling is sent to implement channel estimation for each base station, and performs handover according to the channel estimation result, which solves the problem that the signaling overhead existing in the handover is large and the complexity of the MS search is high in the prior art. The problem is that the signaling overhead is saved, the complexity of the MS search is reduced, and the power saving is facilitated.
  • FIG. 1 is a flowchart of a method for transmitting auxiliary detection signaling according to an embodiment of the present invention
  • FIG. 2 is a flowchart of another method for transmitting auxiliary detection signaling according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram of a method for transmitting a secondary detection signaling in the wireless communication system in the embodiment
  • FIG. 5 is a schematic diagram of a method for transmitting auxiliary detection signaling in Embodiment 2;
  • FIG. 6 is a schematic diagram of a method for transmitting auxiliary detection signaling in Embodiment 3.
  • FIG. 7 is a schematic diagram of another base station and terminal distribution in a wireless communication system according to an embodiment of the present invention
  • FIG. 8 is a schematic diagram of a method for transmitting auxiliary detection signaling in Embodiment 4;
  • FIG. 9 is a schematic diagram of a method for transmitting auxiliary detection signaling in Embodiment 5.
  • FIG. 10 is a schematic diagram of a method for transmitting auxiliary detection signaling in Embodiment 6;
  • FIG. 11 is a schematic diagram of a method for transmitting auxiliary detection signaling in Embodiment 7; 12 is a schematic diagram of a method for transmitting auxiliary detection signaling in Embodiment 8;
  • FIG. 13 is a schematic diagram of a method for transmitting auxiliary detection signaling in Embodiment 9;
  • FIG. 14 is a schematic diagram of a method for transmitting auxiliary detection signaling in Embodiment 10.
  • FIG. 15 is a schematic diagram of a method for transmitting an auxiliary detection signaling in Embodiment 11;
  • FIG. 16 is a schematic diagram of a method for transmitting auxiliary detection signaling in Embodiment 12;
  • FIG. 17 is a flowchart of a method for transmitting and receiving auxiliary detection signaling in Embodiment 13;
  • FIG. 18 is a schematic diagram showing another distribution of a base station and a terminal in a wireless communication system according to an embodiment of the present invention;
  • Figure 19 is a flow chart showing a method of transmitting and receiving auxiliary detection signaling in Embodiment 14.
  • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention provide a supplementary detection signaling transmission scheme for the problem that the signaling overhead of the prior art is high when the handover is performed in the wireless communication system or the complexity of the MS search is high.
  • the solution has two implementation modes, one mode is each base station in a base station group in a predetermined range, and other base stations in the base station group respectively send auxiliary detection signaling on a working carrier frequency thereof.
  • the MS can obtain the auxiliary detection signaling sent by each base station in the foregoing base station group on its working carrier frequency, thereby obtaining related information of each base station; and another manner is in the base station group within a predetermined range.
  • Each base station sends auxiliary detection signaling on one or more common carrier frequencies, and the MS scans on one or more common carrier frequencies to obtain auxiliary detection signaling sent by each base station in the base station group, thereby obtaining each base station.
  • the predetermined range may be set according to specific needs.
  • the predetermined range may include: a base station and all Femto BSs, Pico BSs, and Micro BSs within the coverage of the base station, or the predetermined range includes All base stations (including Femto BS, Pico BS, Micro BS) operating on currently available carrier frequency resources.
  • a method for transmitting auxiliary detection signaling is first provided.
  • FIG. 1 is a flowchart of a method for transmitting auxiliary detection signaling according to an embodiment of the present invention.
  • a method for transmitting auxiliary detection signaling according to an embodiment of the present invention mainly includes the following processing (step S101 - step S103 ) :
  • Step S101 For each base station in the base station group, the other base stations in the base station group respectively send auxiliary detection signaling on the carrier frequency of the base station, where the base station group includes some or all base stations in the predetermined range;
  • Step S103 The MS receives all or part of the auxiliary detection signaling sent by each base station in the foregoing base station group.
  • H ⁇ includes four base stations A, B, C, and D within a predetermined range
  • the base station group in the embodiment of the present invention includes all base stations in the predetermined range, where
  • the working carrier frequency is Fl
  • the working frequency of B is F2
  • the working carrier frequency of C is F3
  • the working carrier frequency of D is F4.
  • the base station group including the four base stations A, B, C, and D is taken as an example, and the base stations A, B, C, and D respectively send auxiliary detections on the working carrier frequency F1 of the base station A.
  • the base station B the three base stations A, C and D respectively send auxiliary detection signaling on the working carrier frequency F2 of the base station B; for the base station C, the three base stations A, B and D respectively work at the base station C
  • the auxiliary detection signaling is sent on the carrier frequency F3; for the base station D, the three base stations A, B and C respectively send the auxiliary detection signaling on the working carrier frequency F4 of the base station D.
  • the base station in the foregoing predetermined range is a base station working on a currently available carrier frequency resource, and includes: Femto BS, Pico BS, Macro BS, or Micro BS.
  • the determining manner of the location of the time-frequency resource block in which the base station sends the auxiliary detection signaling includes but is not limited to the following:
  • A is determined.
  • the base station B, C, and D are at the base station A.
  • the location of the time-frequency resource block on which the auxiliary detection signaling is transmitted on the frequency F1 can be determined by mutual agreement between the base station A and the base stations B, C and D.
  • the upper layer network element includes but is not limited to: a base station controller, an access service network, a connection monthly service network, and a core network gateway.
  • the upper layer network element negotiates with the current base station to determine, by using the predetermined range of the four base stations including A, B, C, and D as an example, for the base station A, the base stations B, C, and D transmit the time frequency of the auxiliary detection signaling.
  • the location of the resource block is determined by the base station A and the upper layer network element.
  • the base station group including the four base stations A, B, C, and D is taken as an example.
  • the base stations B, C, and D are in the The location of the time-frequency resource block for transmitting the auxiliary detection signaling on the carrier frequency F1 of the base station A may be determined by the base station A, the base stations B, C, D and the upper layer network element.
  • the location of the time-frequency resource block in which each base station sends the auxiliary detection signaling may also be determined according to a pre-configured standard.
  • the serving base station may send a request to other base stations to obtain the location information of the time-frequency resource block, and then send the location information to the MS. Or after the upper layer network element determines the location of the time-frequency resource block, the location information is sent to the serving base station of the MS, and then sent by the serving base station to the MS, so that the MS scans the base station in the base station group on the public carrier frequency. Auxiliary detection signaling transmitted on the common carrier frequency.
  • the time-frequency resource block that sends the auxiliary detection signaling may be located in the downlink subframe or in the transition interval between the uplink subframe and the downlink subframe.
  • the auxiliary detection signaling sent by each base station of the base station group can be sent by using the signaling format agreed by the MS, and the content carried by the auxiliary detection signaling is also the content agreed with the MS in advance.
  • auxiliary detection signaling sent by each base station of the base station group may also carry specific content, and may specifically include one or any combination of the following:
  • a pilot sequence of a base station that transmits auxiliary detection signaling specifically, a base station group including four base stations A, B, C, and D as an example.
  • base station B is at carrier frequency F1 of base station A.
  • the content carried by the upper auxiliary detection signaling includes the pilot sequence of the base station B, and the content carried by the base station C on the carrier frequency F1 of the base station A, the content carried by the auxiliary detection signaling includes the pilot sequence of the base station C.
  • the base station D is The content carried by the auxiliary detection signaling on the carrier frequency F1 of the base station A includes the pilot sequence of the base station D;
  • a type of base station that transmits auxiliary detection signaling (Femto BS or Pico BS or Macro BS or Micro BS), specifically, a base station group including four base stations A, B, C, and D as an example, for a base station A, the content carried by the base station B on the carrier frequency F1 of the base station A, the content carried by the auxiliary detection signaling includes the type of the base station B, and the content carried by the base station C on the carrier frequency F1 of the base station A, the content carried by the auxiliary detection signaling, includes the type of the base station C.
  • the content carried by the base station D on the carrier frequency F1 of the base station A for transmitting the auxiliary detection signaling includes the type of the base station D;
  • the type of the base station means that the base station is a Femto BS, a Pico BS, a Macro BS, or a Micro BS.
  • the auxiliary detection signaling includes the cell ID of the base station, or the BS ID
  • the base station group including the four base stations A, B, C, and D as an example, for the base station A, the content carried by the base station B on the carrier frequency F1 of the base station A, the content carried by the auxiliary detection signaling includes the Cell ID or the BS ID of the base station B, and the content carried by the base station C on the carrier frequency F1 of the base station A is included in the auxiliary detection signaling.
  • the Cell ID or the BS ID of the base station C, the content carried by the base station D on the carrier frequency F1 of the base station A, and the content carried by the auxiliary detection signaling includes the Cell ID or the BS ID of the base station D;
  • the restriction condition may include: a type of the MS that the base station is allowed to access (that is, whether the base station only allows a special type of MS to access. And/or, the identity of the MS to which the base station is allowed to access, and/or the terminal group identity to which the base station is permitted to access.
  • the time-frequency resources occupied by the respective base stations in the predetermined range for transmitting the auxiliary detection signaling on the carrier frequency of the current base station may all be the same or partially the same or completely different, when there are multiple base stations.
  • the time-frequency resources occupied by the auxiliary detection signaling are the same, in order to facilitate the MS to distinguish the auxiliary detection signaling sent by different base stations, the auxiliary detection signaling sent by the base stations on the time-frequency resource needs to meet one of the following requirements:
  • the auxiliary detection signaling sent by each base station on the time-frequency resource is a sequence of codewords that are orthogonal or quasi-orthogonal to each other;
  • base stations B, C, and D transmit auxiliary detection signaling on carrier frequency F1 of base station A to be mutually orthogonal or quasi-orthogonal.
  • the sequence of codewords are regarded as orthogonal or quasi-orthogonal.
  • the auxiliary detection signaling sent by each base station on the time-frequency resource is the signaling generated by spreading the predetermined information by using a predetermined sequence as a spreading code, wherein the predetermined sequence is orthogonal or quasi-orthogonal to each other. Orthogonal codeword sequence.
  • the foregoing preset information is required to be carried by the auxiliary detection signaling. Content, for example, the type of base station, index number, etc.
  • the MS may scan according to the location information, and decode each Auxiliary detection signaling sent by the base stations on the common carrier frequency.
  • the MS scans on its working carrier frequency only to scan the auxiliary detection signaling sent by each base station on the carrier frequency.
  • the MS may determine whether to perform handover according to the acquired auxiliary detection signaling of each base station, if the handover is to be performed. Then, the target base station of the handover is determined. After determining the target base station for handover, the MS may send a request to its current serving base station to acquire related information of the target base station, thereby performing handover. Moreover, the MS may determine whether to acquire related information of one of the base stations according to the daily auxiliary detection signaling of each base station on the acquisition date, and when determining that the related information of a certain base station needs to be acquired, the MS may send the information to the current serving base station. Request, request to obtain information about the base station.
  • the MS can search only on its working carrier frequency, which reduces the complexity of the search.
  • auxiliary detection signaling is further provided.
  • FIG. 2 is a flowchart of another method for transmitting auxiliary detection signaling according to an embodiment of the present invention. As shown in FIG. 2, the transmission method mainly includes the following steps (step S201 - step S203):
  • Step S201 Each base station in the base station group in the predetermined range sends the auxiliary detection signaling on the common carrier frequency.
  • Step S203 The MS receives the auxiliary detection signaling sent by each base station in the base station group on the common carrier frequency. Details of each of the above processes are further described below.
  • the common carrier frequency may be a carrier frequency resource that can be sent by all base stations (Macro BS and/or Femto BS and/or Pico BS and/or Micro BS) in the current wireless communication system, and also It may be a carrier frequency resource capable of signaling for a group of base stations (Macro BS and/or Femto BS and/or Pico BS and/or Micro BS).
  • common carrier frequencies for example, two common carrier frequencies F1 and F2
  • different common base stations may use different public Carrier frequency (for example, base stations A, B use F1, base stations C, D use F2).
  • the base station in the predetermined range is a base station working on the currently available carrier frequency resource, and includes: Femto BS, Pico BS, Macro BS or Micro BS.
  • the determining manner of the location of the time-frequency resource block in which the base station sends the auxiliary detection signaling includes but is not limited to the following:
  • the base station that sends the auxiliary detection signaling determines that, by using the predetermined range of the four base stations including A, B, C, and D as an example, the location of the time-frequency resource block in which the base station A sends the auxiliary detection signaling may be determined by the base station A. The determination may also be determined by four base stations A, B, C and D.
  • the upper layer network element includes but is not limited to: a base station controller, an access service network, a connection monthly service network, and a core network gateway.
  • the upper layer network element negotiates with the base station that sends the auxiliary detection signaling to determine, by using the predetermined range of the four base stations including A, B, C, and D as an example, the base station A sends the time-frequency resource block of the auxiliary detection signaling.
  • the location is determined by the base station A and the upper layer network element, or by the base A, B, C, and D and the upper layer network element.
  • the serving base station if the location of the time-frequency resource block is determined by the current serving base station of the MS, the serving base station, after determining the location of the time-frequency resource block, will be in the form of unicast, multicast, or broadcast.
  • the information of the common carrier frequency is sent to the MS, and the MS scans on the common carrier frequency according to the information, so as to obtain the auxiliary detection signaling sent by the base station in the base station group on the common carrier frequency.
  • the serving base station may send a request to the other base station to obtain the information of the common carrier frequency, and then send the information to the MS.
  • the information of the common carrier frequency is sent to the serving base station of the MS, and then sent by the serving base station to the MS, so that the MS scans the base station group on the public carrier frequency.
  • Auxiliary detection signaling sent by the base station on the common carrier frequency is a signal sent by the base station on the common carrier frequency.
  • the time-frequency resource block that sends the auxiliary detection signaling may be located in the downlink subframe or in the transition interval between the uplink subframe and the downlink subframe.
  • the auxiliary detection signaling sent by each base station of the base station group can be sent by using the signaling format agreed by the MS, and the content carried by the auxiliary detection signaling is also the content agreed with the MS in advance.
  • auxiliary detection signaling sent by each base station of the base station group may also carry specific content, and may specifically include one or any combination of the following:
  • auxiliary detection signaling Femto BS or Pico BS or Macro BS or Micro BS
  • an index number of the base station transmitting the auxiliary detection signaling (including the Cell ID of the base station, or a BS ID);
  • the restriction condition may include: a type of the MS that the base station allows access (ie, whether the base station only allows The special type of MS access), and/or the number of MSs that the base station is allowed to access.
  • each base station in the base station group may send the auxiliary detection signaling on the same common carrier frequency to occupy the same time-frequency resource, or may be partially the same or different.
  • the base stations are on the same time-frequency resource of the common carrier frequency.
  • the auxiliary detection signaling sent needs to meet one of the following requirements:
  • the auxiliary detection signaling sent by each base station on the same time-frequency resource of the same common carrier frequency is a mutually orthogonal or quasi-orthogonal codeword sequence
  • the base stations A, B, C, and D transmit the auxiliary detection signaling.
  • the auxiliary detection signaling sent by each base station on the same time-frequency resource of the same common carrier frequency is the signaling generated by spreading the preset information by using a predetermined sequence as a spreading code, wherein the predetermined sequence is A sequence of codewords that are mutually orthogonal or quasi-orthogonal.
  • the preset information is the content that the auxiliary detection signaling needs to carry, for example, the type of the base station, the index number, and the like.
  • the MS may perform the information on one or more common carrier frequencies according to the information. Scanning, decoding the auxiliary detection signaling sent by each base station on each common carrier frequency.
  • the MS may determine, according to the acquired auxiliary detection signaling of each base station, If the handover is to be performed, the target base station to be handed over is determined. After determining the target base station for handover, the MS may send a request to its current serving base station to acquire related information of the target base station, thereby performing handover. Moreover, the MS may determine whether to acquire related information of one of the base stations according to the daily auxiliary detection signaling of each base station on the acquisition date, and when determining that the related information of a certain base station needs to be acquired, the MS may send the information to the current serving base station. Request, request to obtain information about the base station.
  • the MS can perform the search only on the common carrier frequency, which reduces the complexity of the search and reduces the signaling used in the handover.
  • a Macro BS1 is present in a wireless communication system, and the carrier frequency used is F1, Femto BS2, and the carrier frequency used is F2, Femto BS3, and the carrier frequency used is F3, Femto BS4, The carrier frequency used is F4, and the serving base station of the terminal MS 1 is Macro BS1, as shown in FIG.
  • Macro BS1 transmits auxiliary detection signaling on resource blocks with appropriate carrier frequencies of F2, F3, and F4, and Femto BS2 transmits auxiliary detection signaling on resource blocks with appropriate carrier frequencies of F1, F3, and F4, Femto BS3 transmits auxiliary detection signaling on resource blocks with appropriate carrier frequencies of F1, F2, and F4, and Femto BS4 transmits auxiliary detection signaling on resource blocks with appropriate carrier frequencies of F1, F2, and F3.
  • the Macro BS1 informs the Femto BS2, the Femto BS3, and the Femto BS4 to send the location information of the resource block of the auxiliary detection signaling on the carrier frequency F1 by corresponding signaling, as shown in FIG.
  • S21, S31, and S41 are auxiliary detection signalings transmitted by the Femto BS2, Femto BS3, and Femto BS4 on the carrier frequency F1, respectively, and S21, S31, and S41 are respectively a set of pilot sequences, and S21, S31, and S41 are occupied.
  • T1, ⁇ 2, ⁇ 3, and ⁇ 4 may be the same or different.
  • the Macro BS1 informs the MS1 to scan the time slot T1 on the F1 carrier frequency by corresponding signaling, decodes the auxiliary detection signaling, performs channel estimation according to the pilot information in the auxiliary detection signaling, and evaluates Femto BS2 and Femto BS3. And whether the channel quality of Femto BS4 is suitable for handover. It is assumed that in the present embodiment, the terminal MS1 determines that the Femto BS2 is the target base station for handover by decoding the auxiliary detection signals S21, S31 and S41.
  • the terminal MS 1 can obtain the basic information of the Femto BS2 through the current serving base station Macro BS1, and prepare to perform the handover operation; or directly scan the carrier frequency F2 of the Femto BS2 to obtain the basic information of the Femto BS2, and initiate a handover operation.
  • a Macro BS1 exists in a wireless communication system, and the carrier frequency used is F1, Femto BS2, the carrier frequency used is F2, Femto BS3, and the carrier frequency used is F3, Femto BS4, and the carrier frequency used is F4, the serving base station of the terminal MS1 is Macro BS1, as shown in FIG.
  • the Macro BS1 sends the auxiliary detection signaling on the resource blocks with the F2, F3, and F4 carrier frequencies
  • the Femto BS2 sends the auxiliary detection signaling on the F1, F3, and F4 carrier frequency appropriate resource blocks, Femto BS3.
  • the auxiliary detection signaling is transmitted on the resource blocks of the F1, F2, and F4 carrier frequencies
  • the Femto BS4 transmits the auxiliary detection signaling on the resource blocks of the F1, F2, and F3 carrier frequencies.
  • the Macro BS1 informs the Femto BS2, the Femto BS3, and the Femto BS4 to send the location information of the resource block of the auxiliary detection signaling on the carrier frequency F1 by corresponding signaling, as shown in FIG. 5.
  • S21, S31, and S41 are auxiliary detection signalings transmitted by the Femto BS2, Femto BS3, and Femto BS4 on the carrier frequency F1, respectively, and S21, S31, and S41 are respectively a set of pilot sequences, and S21, S31, and S41 are respectively Occupies different time slots T2, ⁇ 3 And T4.
  • the time slot resources occupied by the auxiliary detection signaling sent by each base station on the carrier frequencies of other base stations may be the same or different.
  • the Macro BS1 informs the MS1 to scan the time slots T2, ⁇ 3, and ⁇ 4 on the F1 carrier frequency through corresponding signaling, decodes the auxiliary detection signaling, performs channel estimation according to the pilot information, and evaluates Femto BS2, Femto BS3, and Femto BS4. Whether the channel quality is suitable for switching. It is assumed that the terminal MS1 in the present embodiment determines that the Femto BS2 is the target base station for handover by decoding the auxiliary detection signals S21, S31 and S41.
  • the terminal MS 1 can obtain the basic information of the Femto BS2 through the current serving base station Macro BS1, and prepare to perform the handover operation; or directly scan the carrier frequency F2 of the Femto BS2 to acquire the basic information of the Femto BS2, thereby initiating the handover operation.
  • a Macro BS1 exists in a wireless communication system, and the carrier frequency used is F1, Femto BS2, the carrier frequency used is F2, Femto BS3, and the carrier frequency used is F3, Femto BS4, and the carrier frequency used.
  • F4 the monthly base station of the terminal MS1 is Macro BS1, as shown in FIG.
  • the Macro BS1 sends the auxiliary detection signaling on the resource blocks with the F2, F3, and F4 carrier frequencies
  • the Femto BS2 sends the auxiliary detection signaling on the F1, F3, and F4 carrier frequency appropriate resource blocks, Femto BS3.
  • the auxiliary detection signaling is transmitted on the resource blocks of the F1, F2, and F4 carrier frequencies
  • the Femto BS4 transmits the auxiliary detection signaling on the resource blocks of the F1, F2, and F3 carrier frequencies.
  • the Macro BS1 informs the Femto BS2, the Femto BS3, and the Femto BS4 to send the location information of the resource block of the auxiliary detection signaling on the carrier frequency F1 by corresponding signaling, as shown in FIG. 6.
  • S21, S31, and S41 are auxiliary detection signalings transmitted by the Femto BS2, Femto BS3, and Femto BS4 on the carrier frequency F1, respectively, S21, S31, and S41 occupy the same time slot T1, and S21, S31, and S41 are respectively A predetermined sequence of code subsequences of a set of orthogonal or quasi-orthogonal code subsequences.
  • the Macro BS1 informs the MS1 to scan the time slot on the F1 carrier frequency through corresponding signaling.
  • the terminal MS1 determines the Femto BS2 as the target base station for handover by decoding the auxiliary handover signalings S21, S31 and S41 in this embodiment. Then, the terminal MS 1 can obtain the basic information of the Femto BS2 through the current serving base station Macro BS1, and prepare to perform the handover operation; or directly scan the carrier frequency F2 of the Femto BS2 to obtain the basic information of the Femto BS2, and initiate a handover operation.
  • a Macro BS1 exists in a wireless communication system, and the carrier frequency used is F1, Femto BS2, the carrier frequency used is F2, Femto BS3, and the carrier frequency used is F3, Femto BS4, and the carrier frequency used.
  • the serving base station of the terminal MS2 is Femto BS2, as shown in FIG.
  • each base station sends the auxiliary detection signaling on the appropriate resource block of the carrier frequency of the base station described in the neighboring cell list of the local base station;
  • the neighboring cell list of Macro BS1 includes Femto BS2, Femto BS3, Femto BS 4; the neighboring cell list of Femto BS2 includes Macro BS1 and Femto BS3; the neighboring cell list of Femto BS3 includes Macro BS1 and Femto BS2; Femto BS4 includes the Macro BS 1 in the neighbor list; then the Macro BS 1 transmits the auxiliary detection signaling on the appropriate resource blocks of the F2, F3, and F4 carrier frequencies, and the Femto BS2 is on the appropriate resource blocks of the Fl and F3 carrier frequencies.
  • the auxiliary detection signaling is sent, and the Femto BS3 transmits the auxiliary detection signaling on the resource blocks of the F1 and F2 carrier frequencies, and the Femto BS4 transmits the auxiliary detection signaling on the resource block with the F1 carrier frequency.
  • the Femto BS2 passes the corresponding signaling. Informing the Macro BS1 and the Femto BS3 of the location information of the resource block for transmitting the auxiliary detection signaling on the carrier frequency F2.
  • S12 and S32 are the auxiliary detection signaling sent by the Macro BS1 and the Femto BS3 on the carrier frequency F2, respectively.
  • S12 and S32 occupy the same time slot T2, S12 and S32 are respectively a set of pilot sequences, and S12 and S32 are orthogonal to each other.
  • the time slot T1 occupied by the other base stations on the Macro BS 1 for the auxiliary detection signaling is in Femto
  • the Femto BS2 informs the MS2 to scan the time slot T2 on the F2 carrier frequency by corresponding signaling, decodes the auxiliary detection signaling, performs channel estimation according to the pilot information, and evaluates whether the channel quality of the Macro BS1 and the Femto BS3 is suitable for handover. It is assumed that the terminal MS2 in the present embodiment determines that the Macro BS1 is the target base station for handover by decoding the auxiliary detection signalings S12, S32.
  • the terminal MS2 can obtain the basic information of the Macro BS1 through the current serving base station Femto BS2, and prepare to perform the handover operation; or directly scan the carrier frequency F1 of the Macro BS1 to acquire the basic information of the Macro BS1, and initiate the handover operation.
  • a Macro BS1 exists in a wireless communication system, and the carrier frequency used is F1, Femto BS2, the carrier frequency used is F2, Femto BS3, and the carrier frequency used is F3, Femto BS4, and the carrier frequency used.
  • the serving base station of the terminal MS2 is Femto BS2, as shown in FIG.
  • each base station transmits auxiliary detection signaling on an appropriate resource block of the carrier frequency of the base station described in the neighbor list of the base station.
  • the neighboring cell list of Macro BS 1 includes Femto BS2, Femto BS3, Femto BS 4; the neighboring cell list of Femto BS2 includes Macro BS1 and Femto BS3; the neighboring cell list of Femto BS3 includes Macro BS1 and Femto BS2; Femto BS4 in the neighbor list
  • the Macro BS1 is included; then the Macro BS1 transmits the auxiliary detection signaling on the appropriate resource blocks of the F2, F3, and F4 carrier frequencies, and the Femto BS2 transmits the auxiliary detection signaling on the appropriate resource blocks of the F1 and F3 carrier frequencies, and the Femto BS3 is in the Fl,
  • the auxiliary detection signaling is transmitted on the appropriate resource block of the F2 carrier frequency, and the Femto BS4 transmits the auxiliary detection signaling on the appropriate resource block of the F1 carrier frequency.
  • the Femto BS2 informs the Macro BS1 and the Femto BS3 of the location information of the resource block of the auxiliary detection signaling on the carrier frequency F2 by corresponding signaling, as shown in FIG.
  • S12 and S32 are auxiliary detection signalings transmitted by the carrier BS2 and the Femto BS3 on the carrier frequency F2, respectively.
  • S12 and S32 are respectively a set of pilot sequences, and S12 and S32 respectively occupy different time slots T1 and T3.
  • the time slot resources occupied by the auxiliary detection signaling sent by the base station on the carrier frequency of the base station described in the neighboring cell list may be the same or different.
  • the Femto BS2 informs the MS 2 to scan the time slots T1 and T3 on the F 2 carrier frequency by corresponding signaling, decodes the auxiliary detection signaling, performs channel estimation according to the pilot information, and evaluates the channel quality of the Macro BS1 and the Femto BS3. Is it suitable for switching? It is assumed that the terminal MS2 in the present embodiment determines that the Macro BS1 is the target base station for handover by decoding the auxiliary detection signalings S12, S32.
  • the terminal MS2 can obtain the basic information of the Macro BS1 through the current serving base station Femto BS2, and prepare to perform the handover operation; or directly scan the carrier frequency F1 of the Macro BS1 to obtain the basic information of the Macro BS1, and initiate a handover operation.
  • a Macro BS1 exists in a wireless communication system, and the carrier frequency used is F1, Femto BS2, the carrier frequency used is F2, Femto BS3, and the carrier frequency used is F3, Femto BS4, and the carrier frequency used.
  • the serving base station of the terminal MS2 is Femto BS2, as shown in FIG.
  • the base station sends the auxiliary detection signaling on the appropriate resource block of the carrier frequency of the base station described in the neighboring cell list of the local base station.
  • the neighboring cell list of Macro BS1 includes Femto BS2, Femto BS3, Femto BS4;
  • the neighboring cell list of Femto BS2 includes Macro BS1 and Femto BS3;
  • the neighboring cell list of Femto BS3 includes Macro BS1 and Femto BS2;
  • Femto BS4 includes the Macro BS1 in the neighbor list;
  • the Macro BS 1 sends the auxiliary detection signaling on the appropriate resource blocks of the F2, F3, and F4 carrier frequencies, and the Femto BS2 transmits on the F1 and F3 carrier frequency appropriate resource blocks.
  • Auxiliary detection signaling, Femto BS3 sends auxiliary detection signaling on the appropriate resource blocks of Fl, F2 carrier frequency, and Femto BS4 sends auxiliary detection signaling on the
  • the Femto BS2 informs the Macro BS1 and the Femto BS3 of the location information of the resource block of the auxiliary detection signaling on the carrier frequency F2 by corresponding signaling, as shown in FIG.
  • S12 and S32 are auxiliary detection signalings transmitted by the carrier BS2 and the Femto BS3 on the carrier frequency F2, respectively.
  • S12 and S32 occupy the same time slot T2, and S12 and S32 are respectively a predetermined set of orthogonal or quasi-orthogonal codes. A sequence of code sequences in a sequence.
  • T1, ⁇ 2, ⁇ 3, and ⁇ 4 may be the same or different.
  • the Femto BS2 informs the MS2 to scan the time slot T2 on the F2 carrier frequency by corresponding signaling, and evaluates whether the channel quality of the Macro BS1 and the Femto BS3 is suitable for handover by decoding the auxiliary detection signaling. It is assumed that the terminal MS2 determines that the Macro BS1 is the target base station for handover by decoding the auxiliary detection signalings S12, S32 in this embodiment. Then, the terminal MS2 can obtain the basic information of the Macro BS1 through the current serving base station Femto BS2, and prepare to perform the handover operation; or directly scan the carrier frequency F1 of the Macro BS1 to acquire the basic information of the Macro BS1, and initiate a handover operation.
  • a Macro BS1 exists in a wireless communication system, and the carrier frequency used is F1, Femto BS2, and the carrier frequency used is F2, Femto BS 3, and the carrier frequency used is F3.
  • Fc is a common carrier frequency resource, and Macro BS1, Femto BS2, Femto BS3, and Femto BS4 can all send messages on the Fc.
  • Macro BS1, Femto BS2, Femto BS3, and Femto BS4 transmit auxiliary detection signaling on appropriate resource blocks of carrier frequency Fc.
  • the upper layer network element informs the Macro BS1, the Femto BS2, the Femto BS3, and the Femto BS4 to send the location information of the resource block of the auxiliary detection signaling on the carrier frequency Fc by corresponding signaling, as shown in FIG. 11, Slc, S2c, S3c, and S4c are auxiliary detection signalings transmitted by the carrier BSc, Femto BS2, Femto BS3, and Femto BS4 on the carrier frequency Fc, respectively, and Slc, S2c, S3c, and S4c are respectively a set of pilot sequences, Slc, S2c, and S3c. S4c occupies the same time slot Tc, and Slc, S2c, S3c, and S4c are orthogonal to each other.
  • the time slot resources Tc occupied by the auxiliary detection signaling sent by the base station on different common carrier frequencies may be the same or different.
  • the Macro BS1 informs the MS1 to scan the time slot Tc on the Fc carrier frequency by corresponding signaling, decodes the auxiliary detection signaling, performs channel estimation according to the pilot information, and evaluates the channel quality of the Femto BS2, the Femto BS3, and the Femto BS4. Is it suitable for switching? It is assumed that the terminal MS1 determines the Femto BS2 as the target base station for handover by decoding the auxiliary detection signals S2c, S3c and S4c in this embodiment.
  • the terminal MS 1 can obtain the basic information of the Femto BS2 through the current serving base station Macro BS 1 to prepare for the handover operation, or directly scan the carrier frequency F2 of the Femto BS2 to obtain the basic information of the Femto BS2, and initiate a handover operation.
  • a Macro BS1 exists in a wireless communication system, and the carrier frequency used is F1, Femto BS2, the carrier frequency used is F2, Femto BS3, and the carrier frequency used is F3, Femto BS4, and the carrier frequency used.
  • the monthly base station of the terminal MS1 is Macro BS1, as shown in FIG.
  • Fc is a common carrier frequency resource, Macro BS1, Femto BS2, Femto BS3 and Femto BS4 can both send messages on the Fc.
  • Macro BS1, Femto BS2, Femto BS3, and Femto BS4 transmit auxiliary detection signaling on appropriate resource blocks of carrier frequency Fc.
  • the upper layer network element informs the Macro BS1, the Femto BS2, the Femto BS3, and the Femto BS4 of the location information of the resource block for transmitting the auxiliary detection signaling on the carrier frequency Fc by corresponding signaling, as shown in FIG. 12, Slc, S2c.
  • S3c and S4c are auxiliary detection signalings transmitted by the carrier BSc, Femto BS2, Femto BS3, Femto BS4 on the carrier frequency Fc, respectively
  • Slc, S2c, S3c and S4c are respectively a set of pilot sequences
  • Slc, S2c, S3c And S4c occupy different time slots T1, ⁇ 2, ⁇ 3, and ⁇ 4, respectively.
  • the time slot resources occupied by the auxiliary detection signaling sent by the base station on different common carrier frequencies may be the same or different.
  • the Macro BS1 informs the MS1 to scan the time slots T2, ⁇ 3, and ⁇ 4 on the Fc carrier frequency by corresponding signaling, decodes the auxiliary detection signaling, performs channel estimation based on the pilot information, and evaluates Femto BS2, Femto BS3, and Femto. Whether the channel quality of BS4 is suitable for handover.
  • the terminal MS1 determines that the Femto BS2 is the target base station for handover by decoding the auxiliary handover signalings S2c, S3c, and S4c.
  • the terminal MS1 can obtain the basic information of the Femto BS2 through the current serving base station Macro BS1, and prepare to perform the handover operation; or directly scan the carrier frequency F2 of the Femto BS2 to obtain the basic information of the Femto BS2, and initiate a handover operation.
  • a Macro BS1 exists in a wireless communication system, and the carrier frequency used is F1, Femto BS2, the carrier frequency used is F2, Femto BS3, and the carrier frequency used is F3, Femto BS4, and the carrier frequency used.
  • the monthly base station of the terminal MS1 is Macro BS1, as shown in FIG. Fc is a common carrier frequency resource, and Macro BS1, Femto BS2, Femto BS3, and Femto BS4 can all transmit information on Fc.
  • Macro BS1, Femto BS2, Femto BS3, and Femto BS4 are Auxiliary detection signaling is transmitted on the appropriate resource block of the carrier frequency Fc.
  • the upper layer network element informs the Macro BS1, the Femto BS2, the Femto BS3, and the Femto BS4 to transmit the location information of the resource block of the auxiliary detection signaling on the carrier frequency Fc by corresponding signaling, as shown in FIG.
  • Slc, S2c, S3c, and S4c are auxiliary detection signalings transmitted by the carrier BSc, Femto BS2, Femto BS3, and Femto BS4 on the carrier frequency Fc, respectively, and Slc, S2c, S3c, and S4c occupy the same time slot Tc, and Slc, S2c, and S3c And S4c are respectively a code subsequence of a predetermined set of orthogonal or quasi-orthogonal code subsequences.
  • the time slot resources occupied by the auxiliary detection signaling sent by the base station on different common carrier frequencies may be the same or different.
  • the Macro BS1 informs the MS1 to scan the time slot Tc on the Fc carrier frequency by corresponding signaling, and evaluates whether the channel quality of the Femto BS2, the Femto BS3, and the Femto BS4 is suitable for handover by decoding the auxiliary detection signaling. It is assumed that the terminal MS1 in the present embodiment determines that the Femto BS2 is the target base station for handover by decoding the auxiliary detection signals S2c, S3c and S4c.
  • the terminal MS1 can obtain the basic information of the Femto BS2 through the current serving base station Macro BS1, and prepare to perform the switching operation; or directly scan the carrier frequency F2 of the Femto BS2 to obtain the basic information of the Femto BS2, and initiate a handover operation.
  • a Macro BS1 exists in a wireless communication system, and the carrier frequency used is F1, Femto BS2, the carrier frequency used is F2, Femto BS3, and the carrier frequency used is F3, Femto BS4, and the carrier frequency used.
  • the monthly base station of the terminal MS1 is Macro BS1, as shown in FIG.
  • Fcl is a common carrier frequency resource, Macro BS1, Femto BS2 can send messages on Fcl;
  • Fc2 is another common carrier frequency resource, Femto BS3 and Femto BS4 can send messages on Fc2.
  • Macro BS1, Femto BS2 transmit auxiliary detection signaling on appropriate resource blocks of carrier frequency Fcl;
  • Femto BS3 and Femto BS4 are on appropriate resource blocks of carrier frequency Fc2 Send auxiliary detection signaling.
  • the upper layer network element informs the Macro BS1 and the Femto BS2 to send the location information of the resource block for the auxiliary detection signaling on the carrier frequency Fcl by corresponding signaling, and informs the Femto BS3 and the Femto BS4 to send the auxiliary detection on the carrier frequency Fc2.
  • the location information of the resource blocks of the signaling as shown in FIG. 14, Slcl, S2cl, S3c2, and S4c2 are auxiliary detection signalings transmitted by Macro BS1, Femto BS2, Femto BS3, and Femto BS4, respectively.
  • Slcl, S2cl, S3c2, and S4c2 are respectively a set of pilot sequences.
  • Slcl and S2cl occupy the same time slot Tel, and Slcl and S2cl are orthogonal to each other; S3c2 and S4c2 occupy the same time slot Tc2, and S3c2 and S3c2 are orthogonal to each other. .
  • the time slot resources occupied by the auxiliary detection signaling sent by the base station on different common carrier frequencies may be the same or different.
  • the Macro BS1 informs the MS1 to scan the time slot Tel on the Fcl carrier frequency and the time slot Tc2 on the carrier frequency of the Fc2 by corresponding signaling, decode the auxiliary detection signaling, perform channel estimation according to the pilot information, and evaluate Femto. Whether the channel quality of BS2, Femto BS3 and Femto BS4 is suitable for handover. It is assumed that the terminal MS1 determines the Femto BS2 as the target base station for handover by decoding the auxiliary detection signals S2cl, S3c2 and S4c2 in this embodiment.
  • the terminal MS 1 can obtain the basic information of the Femto BS2 through the current serving base station Macro BS1, and prepare to perform the handover operation; or directly scan the carrier frequency F2 of the Femto BS2 to obtain the basic information of the Femto BS2, and initiate the handover operation.
  • a Macro BS1 exists in a wireless communication system, and the carrier frequency used is F1, Femto BS2, the carrier frequency used is F2, Femto BS3, and the carrier frequency used is F3, Femto BS4, and the carrier frequency used.
  • the monthly base station of the terminal MS1 is Macro BS1, as shown in FIG.
  • Fcl is a common carrier frequency resource, Macro BS1, Femto BS2 can send messages on Fcl;
  • Fc2 is another common carrier frequency resource, Femto BS3 and Femto BS4 can send messages on Fc2.
  • Macro BS1, Femto BS2 transmit the auxiliary detection signaling on the appropriate resource block of carrier frequency Fcl; Femto BS3 and Femto BS4 transmit the auxiliary detection signaling on the appropriate resource block of carrier frequency Fc2.
  • the upper layer network element informs the Macro BS1 and the Femto BS2 to send the location information of the resource block for the auxiliary detection signaling on the carrier frequency Fcl by corresponding signaling, and informs the Femto BS3 and the Femto BS4 to send the auxiliary detection on the carrier frequency Fc2.
  • the location information of the resource blocks of the signaling as shown in FIG. 15, Slcl, S2cl, S3c2, and S4c2 are auxiliary detection signalings transmitted by Macro BS1, Femto BS2, Femto BS3, and Femto BS4, respectively.
  • Slcl, S2cl, S3c2, and S4c2 are respectively a set of pilot sequences.
  • Slcl and S2cl occupy different time slots Tlcl and T2cl, respectively;
  • S3c2 and S4c2 occupy different time slots T3c2 and T4c2, respectively.
  • the time slot resources occupied by the auxiliary detection signaling sent by the base station on different common carrier frequencies may be the same or different.
  • the Macro BS1 informs the MS1 to scan the time slots Tcl1, T2cl on the Fcl carrier frequency and the time slots T3c2 and T4c2 on the carrier frequency of the Fc2 by corresponding signaling, decode the auxiliary detection signaling, and perform channel according to the pilot information. It is estimated that it is evaluated whether the channel quality of Femto BS2, Femto BS 3 and Femto BS4 is suitable for handover. It is assumed that the terminal MS1 determines the Femto BS2 as the target base station for handover by decoding the auxiliary detection signalings S2cl, S3c2 and S4c2 in this embodiment.
  • the terminal MS1 can obtain the basic information of the Femto BS2 through the current serving base station Macro BS1, and prepare for the handover operation; or directly scan the carrier frequency F2 of the Femto BS2 to obtain the basic information of the Femto BS2, and initiate a handover operation.
  • a Macro BS1 exists in a wireless communication system, and the carrier frequency used is F1, Femto BS2, the carrier frequency used is F2, Femto BS3, and the carrier frequency used is F3, Femto BS4, and the carrier frequency used.
  • the monthly base station of the terminal MS1 is Macro BS1, as shown in FIG.
  • Fcl is a common carrier frequency resource, Macro BS1, Femto BS2 can be on Fcl Sending a message;
  • Fc2 is another common carrier frequency resource, and Femto BS3 and Femto BS4 can send messages on Fc2.
  • Macro BS1, Femto BS2 transmit auxiliary detection signaling on the appropriate resource block of carrier frequency Fcl; Femto BS3 and Femto BS4 transmit auxiliary detection signaling on the appropriate resource block of carrier frequency Fc2.
  • the upper layer network element informs the Macro BS1 and the Femto BS2 to send the location information of the resource block for the auxiliary detection signaling on the carrier frequency Fcl by corresponding signaling, and informs the Femto BS3 and the Femto BS4 to send the auxiliary detection on the carrier frequency Fc2.
  • the location information of the resource blocks of the signaling as shown in FIG. 16, Slcl, S2cl, S3c2, and S4c2 are auxiliary detection signalings transmitted by Macro BS1, Femto BS2, Femto BS3, and Femto BS4, respectively.
  • Slcl, S2cl, S3c2, and S4c2 are respectively a code subsequence of a predetermined set of orthogonal or quasi-orthogonal code subsequences.
  • Slcl and S2cl occupy the same time slot Tel;
  • S3c2 and S4c2 occupy the same time slot Tc2.
  • the time slot resources occupied by the auxiliary detection signaling sent by the base station on different common carrier frequencies may be the same or different.
  • the Macro BS1 informs the MS1 to scan the time slot Tel on the Fcl carrier frequency and the time slot Tc2 on the Fc2 carrier frequency by corresponding signaling, decode the auxiliary detection signaling, and evaluate the Femto BS2, the Femto BS3, and the Femto BS4. Whether the channel quality is suitable for switching. It is assumed that the terminal MS1 in the present embodiment determines that the Femto BS2 is the target base station for handover by decoding the auxiliary detection signals S2cl, S3c2 and S4c2.
  • the terminal MS1 can obtain the basic information of the Femto BS2 through the current serving base station Macro BS1, and prepare to perform the handover operation; or directly scan the carrier frequency F2 of the Femto BS2 to obtain the basic information of the Femto BS2, and initiate a handover operation.
  • a Macro BS1 exists in a wireless communication system, and the carrier frequency used is F1, Femto BS2, the carrier frequency used is F2, Femto BS3, and the carrier frequency used is F3, Femto BS4, and the carrier frequency used.
  • the terminal MS1's monthly service base station is Macro BS1, as shown in Figure 3. Shown.
  • the Macro BS1 sends the auxiliary detection signaling on the resource blocks with the F2, F3, and F4 carrier frequencies
  • the Femto BS2 sends the auxiliary detection signaling on the F1, F3, and F4 carrier frequency appropriate resource blocks, Femto BS3.
  • the auxiliary detection signaling is transmitted on the resource blocks of the F1, F2, and F4 carrier frequencies
  • the Femto BS4 transmits the auxiliary detection signaling on the resource blocks of the F1, F2, and F3 carrier frequencies.
  • FIG. 17 is a specific flowchart of the auxiliary detection signaling transmission and reception in the embodiment. As shown in FIG. 17, in the embodiment, the auxiliary detection signaling is used.
  • the sending and receiving methods mainly include:
  • Step 701 The Macro BS1 notifies the Femto BS2, the Femto BS3, and the Femto BS4 to send the location information of the resource block of the auxiliary detection signaling on the carrier frequency F1 by backhaul.
  • S21, S31, and S41 are Femto BS2 and Femto, respectively.
  • BS3, Femto BS4 auxiliary detection signaling transmitted on carrier frequency F1 S21, S31 and S41 are respectively a set of pilot sequences, S21, S31 and S41 occupy the same time slot T1, and S21, S31 and S41 are orthogonal to each other .
  • T1, ⁇ 2, ⁇ 3, and ⁇ 4 may be the same or different.
  • Step 703 The Macro BS1 sends the relevant signaling through the broadcast channel to inform the base station of the time-frequency resource block location information occupied by the auxiliary detection signaling sent by the terminal F1 on the carrier frequency.
  • Step 705 Femto BS2, Femto BS3 and Femto BS4 send auxiliary detection signaling on carrier frequency F1.
  • Step 707 The MS1 scans the time slot T1 on the F1 carrier frequency, decodes the auxiliary detection signalings S21, S31, and S41, performs channel estimation according to the obtained pilot information, and evaluates whether the channel quality of the Femto BS2, the Femto BS3, and the Femto BS4 is suitable. Switch.
  • Step 709 The terminal MS1 determines by decoding the auxiliary detection signalings S21, S31 and S41.
  • the Femto BS2 is the target base station for handover, and transmits handover request information to the current serving base station Macro BS1.
  • Step 711 After receiving the handover request information, the Macro BS1 sends the basic information of the Femto BS2 to the terminal MS1.
  • Step 713 The MS1 initiates a handover operation according to the basic information of the received Femto BS2.
  • the Femto BS1 in a wireless communication system uses a carrier frequency of F1 and Femto BS2, and the carrier frequency used is F2 and Femto BS3.
  • the carrier frequency used is F3 and Femto BS4, and the carrier frequency used is F4.
  • the serving base station of the terminal MS1 is Femto BS1, as shown in FIG. 18.
  • Femto BS1 sends auxiliary detection signaling on resource blocks with appropriate carrier frequencies of F2, F3, and F4, and Femto BS2 transmits auxiliary detection signaling on resource blocks with appropriate carrier frequencies of F1, F3, and F4, Femto BS3.
  • the auxiliary detection signaling is transmitted on the resource blocks of the F1, F2, and F4 carrier frequencies, and the Femto BS4 transmits the auxiliary detection signaling on the resource blocks of the F1, F2, and F3 carrier frequencies.
  • FIG. 17 is a specific flowchart of the auxiliary detection signaling transmission and reception in the embodiment. As shown in FIG. 17, in the embodiment, the auxiliary detection signaling is sent. And receiving methods mainly include:
  • Step 901 The upper layer network element notifies the Femto BS2, the Femto BS3, and the Femto BS4 of the location information of the resource block of the auxiliary detection signaling on the carrier frequency F1 by corresponding signaling;
  • S21, S31, and S41 are auxiliary detection signalings sent by the Femto BS2, Femto BS3, and Femto BS4 on the carrier frequency F1, respectively, and S21, S31, and S41 are respectively a set of pilot sequences, S21, S31, and S41 occupies the same time slot T1, and S21, S31, and S41 are orthogonal to each other.
  • Step 903 The Femto BS1 sends the relevant signaling through the broadcast channel to inform the lower terminal of the base station, and the time-frequency resource block location information occupied by the auxiliary detection signaling sent on the F1 carrier frequency.
  • Step 905 Femto BS2, Femto BS3 and Femto BS4 send auxiliary detection signaling on carrier frequency F1.
  • Step 907 MS1 scans the time slot T1 on the F1 carrier frequency, and decodes the auxiliary detection signalings S21, S31 and S41;
  • Step 909 The MS1 performs channel estimation according to the obtained pilot information, and determines whether the channel quality of the Femto BS2, the Femto BS3, and the Femto BS4 is suitable for handover, and the terminal MS1 determines that the Femto BS2 is the handover by decoding the auxiliary detection signalings S21, S31, and S41. Target base station, and sending handover request information to the current serving base station Femto BS 1;
  • Step 911 Femto BS1 sends basic information of Femto BS2 to MS1;
  • Step 913 The MS1 initiates a handover operation according to the basic information of the received Femto BS2.
  • Example 15 The MS1 initiates a handover operation according to the basic information of the received Femto BS2.
  • a Macro BS1 is present in a wireless communication system, and the carrier frequency used is F1, Femto BS2, and the carrier frequency used is F2, Femto BS3, and the carrier frequency used is F3, Femto BS4, The carrier frequency used is F4, and the serving base station of the terminal MS 1 is Macro BS1, as shown in FIG.
  • Macro BS1 transmits auxiliary detection signaling on resource blocks with appropriate carrier frequencies of F2, F3, and F4, and Femto BS2 transmits auxiliary detection signaling on resource blocks with appropriate carrier frequencies of F1, F3, and F4, Femto BS3 transmits auxiliary detection signaling on resource blocks with appropriate carrier frequencies of F1, F2, and F4, and Femto BS4 transmits auxiliary detection signaling on resource blocks with appropriate carrier frequencies of F1, F2, and F3.
  • the Macro BS1 informs the Femto BS2, the Femto BS3, and the Femto BS4 of the location information of the resource block of the auxiliary detection signaling on the carrier frequency F1 by corresponding signaling, as shown in the figure.
  • S21, S31 and S41 are auxiliary detection signaling sent by the Femto BS2, Femto BS3, and Femto BS4 on the carrier frequency F1, respectively, and occupy different Time-frequency resource block.
  • S21, S31 and S41 respectively contain indication information of whether Femto BS2, Femto BS3, Femto BS4 allow more new terminals to access.
  • a bit "1" indicates that the corresponding base station allows the new terminal to access; and a bit “0" indicates that the corresponding base station does not allow the new terminal to access.
  • the Femto BS2 and the Femto BS3 allow the new terminal to access, and the corresponding bit of the auxiliary detection signaling S21, S31 is "1"; if the Femto BS4 does not allow the new terminal to access, the auxiliary detection signaling S41 The corresponding bit is "0";
  • the macro BS1 informs the MSI Femto BS2, the Femto BS3, and the Femto BS4 to send the location information of the time-frequency resource block of the auxiliary detection signaling by corresponding signaling, and the terminal MS1 decodes the auxiliary detection signaling to determine the Femto BS2 and the Femto.
  • BS3 is a target base station that can be accessed. Then, the terminal MS 1 can obtain basic information of Femto BS2 and Femto BS3 through the current serving base station Macro BS 1.
  • a Macro BS1 is present in a wireless communication system, and the carrier frequency used is F1, Femto BS2, and the carrier frequency used is F2, Femto BS3, and the carrier frequency used is F3, Femto BS4, The carrier frequency used is F4, and the serving base station of the terminal MS 1 is Macro BS1, as shown in FIG.
  • Macro BS1 transmits auxiliary detection signaling on resource blocks with appropriate carrier frequencies of F2, F3, and F4, and Femto BS2 transmits auxiliary detection signaling on resource blocks with appropriate carrier frequencies of F1, F3, and F4, Femto BS3 transmits auxiliary detection signaling on resource blocks with appropriate carrier frequencies of F1, F2, and F4, and Femto BS4 transmits auxiliary detection signaling on resource blocks with appropriate carrier frequencies of F1, F2, and F3.
  • the Macro BS1 informs the Femto BS2, the Femto BS3, and the Femto BS4 to send the location information of the resource block of the auxiliary detection signaling on the carrier frequency F1 by corresponding signaling, as shown in FIG.
  • S21, S31, and S41 are auxiliary detection signalings transmitted by the Femto BS2, Femto BS3, and Femto BS4 on the carrier frequency F1, respectively, and occupy different time-frequency resource blocks.
  • S21, S31 and S41 contain Femto BS2, Femto BS3, Femto BS4, respectively The index number and instructions for allowing more new terminals to access.
  • the index numbers of Femto BS2, Femto BS3, and Femto BS4 are respectively "01""10""11", and a bit "1" indicates that the corresponding base station allows new terminal access; The corresponding base station does not allow access to the new terminal.
  • the Femto BS2 and the Femto BS 3 allow the new terminal to access, and the corresponding bit in the auxiliary detection signaling S21, S31 is "1"; if the Femto BS4 does not allow the new terminal to access, the auxiliary detection signaling S41
  • the corresponding bit is "0"; that is, S21, S31, and S41 are "01 1""101""110", respectively.
  • the Macro BS1 informs the MS1 to detect the location information of the time-frequency resource block sent by the signaling by the corresponding signaling, and the terminal MS1 decodes the auxiliary detection signaling to determine the target of the base station index number being "01" "10".
  • the base station is an accessible base station. Then, the terminal MS1 can obtain the basic information of the base station with the index number "01" "10", that is, the basic information of the Femto BS2 and the Femto BS3, through the current serving base station Macro BS1.
  • a Macro BS1 is present in a wireless communication system, and the carrier frequency used is F1, Femto BS2, and the carrier frequency used is F2, Femto BS3, and the carrier frequency used is F3, Femto BS4, The carrier frequency used is F4, and the serving base station of the terminal MS 1 is Macro BS1, as shown in FIG.
  • Macro BS1 transmits auxiliary detection signaling on resource blocks with appropriate carrier frequencies of F2, F3, and F4, and Femto BS2 transmits auxiliary detection signaling on resource blocks with appropriate carrier frequencies of F1, F3, and F4, Femto BS3 transmits auxiliary detection signaling on resource blocks with appropriate carrier frequencies of F1, F2, and F4, and Femto BS4 transmits auxiliary detection signaling on resource blocks with appropriate carrier frequencies of F1, F2, and F3.
  • the Macro BS1 informs the Femto BS2, the Femto BS3, and the Femto BS4 to send the location information of the resource block of the auxiliary detection signaling on the carrier frequency F1 by corresponding signaling, as shown in FIG. 4 .
  • S21, S31, and S41 are auxiliary detection signalings sent by the Femto BS2, Femto BS3, and Femto BS4 on the carrier frequency F1, respectively, and occupy different Time-frequency resource block.
  • S21, S31, and S41 respectively include indication information of whether Femto BS2, Femto BS3, Femto BS4 allows more new terminals to access, and indication information for access terminal type restrictions.
  • a bit "1" indicates that the corresponding base station allows the new terminal to access
  • a bit "0" indicates that the corresponding base station does not allow the new terminal to access.
  • the corresponding bits of the auxiliary detection signaling S21, S31 are "1”. If the Femto BS4 does not allow the new terminal to access, the corresponding bit of the auxiliary detection signaling S41 is "0".
  • the bit “11” indicates that the corresponding base station has restrictions on the access terminal, and the bit “00” indicates that the corresponding base station has no restriction on the access terminal. It is assumed that the Femto BS2 and the Femto BS4 have no restrictions on the access terminal. Then, the corresponding bit of the auxiliary detection signaling S21, S41 is "00"; assuming that the Femto BS3 has a restriction condition for the access terminal, the corresponding bit of the auxiliary detection signaling S31 is "11" and the terminal group that is allowed to access is attached. The logo is "0101".
  • the macro BS1 informs the MSI Femto BS2, the Femto BS3, and the Femto BS4 to send the location information of the time-frequency resource block of the auxiliary detection signaling by corresponding signaling, and the terminal MS1 decodes the auxiliary detection signaling, and first determines the Femto BS2.
  • the Femto BS3 is an accessible target base station, and then it is determined that the Femto BS2 has no restrictions on the access terminal, and the Femto BS4 has restrictions on the access terminal and the terminal group identifier must be "0101" to access.
  • the MS1 can obtain the basic information of the Femto BS2 and the Femto BS3 through the current serving base station Macro BS1; assuming that the group identifier of the terminal MS1 is not "0101", the MS1 passes the current serving base station.
  • Macro BS1 obtains basic information about Femto BS2.
  • a Macro BS1 is present in a wireless communication system, and the carrier frequency used is F1, Femto BS2, and the carrier frequency used is F2, Femto BS3, and the carrier frequency used is F3, Femto BS4, The carrier frequency used is F4, and the serving base station of the terminal MS 1 is Macro BS1, as shown in FIG.
  • Macro BS1 transmits auxiliary detection signaling on resource blocks with appropriate carrier frequencies of F2, F3, and F4, and Femto BS2 transmits auxiliary detection signaling on resource blocks with appropriate carrier frequencies of F1, F3, and F4, Femto BS3 transmits auxiliary detection signaling on resource blocks with appropriate carrier frequencies of F1, F2, and F4, and Femto BS4 transmits auxiliary detection signaling on resource blocks with appropriate carrier frequencies of F1, F2, and F3.
  • the Macro BS1 informs the Femto BS2, the Femto BS3, and the Femto BS4 to send the location information of the resource block of the auxiliary detection signaling on the carrier frequency F1 by corresponding signaling, as shown in FIG. 6.
  • S21, S31, and S41 are auxiliary detection signaling transmitted by the Femto BS2, Femto BS3, and Femto BS4 on the carrier frequency F1, respectively, and occupy the same time-frequency resource block.
  • S21, S31 and S41 other division containing 1 J Femto BS2, Femto BS3, Femto BS4 more whether to allow a new indication information for terminal access and information indicating the type of the access terminal restriction.
  • a bit "1" indicates that the corresponding base station allows the new terminal to access
  • a bit "0" indicates that the corresponding base station does not allow the new terminal to access.
  • the corresponding bits of the auxiliary detection signaling S21, S31 are "1”. If the Femto BS4 does not allow the new terminal to access, the corresponding bit of the auxiliary detection signaling S41 is "0".
  • the bit “11” indicates that the corresponding base station has a restriction condition on the access terminal
  • the bit "00" indicates that the corresponding base station has no restriction on the access terminal. It is assumed that the Femto BS2 and the Femto BS4 have no restrictions on the access terminal. Then, the corresponding bit of the auxiliary detection signaling S21, S41 is "00"; assuming that the Femto BS3 has a restriction condition for the access terminal, the corresponding bit of the auxiliary detection signaling S31 is "11" and the terminal group that is allowed to access is attached. The logo is "0101".
  • Femto BS2, Femto BS3, Femto BS4 respectively spread S21, S31 and S41 by using different codeword sequences in a set of orthogonal codeword sequences, and then transmit on F1 carrier frequency, and Macro BS1 is known as Femto BS2, Femto The codeword sequence used by BS3 and Femto BS4.
  • the macro BS1 informs the MSI Femto BS2, the Femto BS3, and the Femto BS4 to send the location information of the time-frequency resource block of the auxiliary detection signaling and the adopted codeword sequence by corresponding signaling, and the terminal MS1 decodes the auxiliary detection signal.
  • Order first determine Femto BS2, Femto BS3 For the target base station that can be accessed, it is then determined that the Femto BS2 has no restrictions on the access terminal, and the Femto BS4 has restrictions on the access terminal and the terminal group identifier must be "0101" to access.
  • the MS1 can obtain the basic information of the Femto BS2 and the Femto BS3 through the current serving base station Macro BS1; assuming that the group identifier of the terminal MS1 is not "0101", the MS1 passes the current serving base station.
  • Macro BS1 obtains basic information about Femto BS2.
  • a Macro BS1 is present in a wireless communication system, and the carrier frequency used is F1, Femto BS2, and the carrier frequency used is F2, Femto BS3, and the carrier frequency used is F3, Femto BS4, The carrier frequency used is F4, and the serving base station of the terminal MS 1 is Macro BS1, as shown in FIG.
  • Macro BS1 transmits auxiliary detection signaling on resource blocks with appropriate carrier frequencies of F2, F3, and F4, and Femto BS2 transmits auxiliary detection signaling on resource blocks with appropriate carrier frequencies of F1, F3, and F4, Femto BS3 transmits auxiliary detection signaling on resource blocks with appropriate carrier frequencies of F1, F2, and F4, and Femto BS4 transmits auxiliary detection signaling on resource blocks with appropriate carrier frequencies of F1, F2, and F3.
  • the Macro BS1 informs the Femto BS2, the Femto BS3, and the Femto BS4 of the location information of the resource block for the auxiliary detection signaling on the carrier frequency F1 by corresponding signaling, S21, S31.
  • S41 are auxiliary detection signaling sent by the Femto BS2, Femto BS3, and Femto BS4 on the carrier frequency F1, where S21 and S31 occupy the same time-frequency resource block, and S41 occupies different time-frequency resource blocks from S21 and S31.
  • S21, S31, and S41 respectively include indication information of whether Femto BS2, Femto BS3, Femto BS4 allows more new terminals to access, and indication information for access terminal type restrictions.
  • a bit "1" indicates that the corresponding base station allows new terminal access
  • a bit "0" indicates that the corresponding base station does not allow new terminal access.
  • the corresponding bit of the auxiliary detection signaling S21, S31 is "1"
  • the auxiliary detection signal is Let the corresponding bit of S41 be "0".
  • the bit “11” indicates that the corresponding base station has restrictions on the access terminal, and the bit “00” indicates that the corresponding base station has no restriction on the access terminal. It is assumed that the Femto BS2 and the Femto BS4 have no restrictions on the access terminal. Then, the corresponding bit of the auxiliary detection signaling S21, S41 is "00"; assuming that the Femto BS3 has a restriction condition for the access terminal, the corresponding bit of the auxiliary detection signaling S31 is "11" and the terminal group that is allowed to access is attached. The logo is "0101".
  • Femto BS2 and Femto BS3 respectively spread S21 and S3 by using different codeword sequences in a set of orthogonal codeword sequences, and then transmit them on the carrier frequency of F1, and Macro BS1 knows the codewords used by Femto BS2 and Femto BS3. sequence.
  • Macro BS1 informs MSI Femto BS2, Femto by corresponding signaling.
  • the BS3 and Femto BS4 transmit the location information of the time-frequency resource block of the auxiliary detection signaling and the codeword sequence adopted by the Femto BS2 and the Femto BS3, and the terminal MS1 decodes the auxiliary detection signaling, and first determines that the Femto BS2 and the Femto BS3 are accessible. The target base station then determines that the Femto BS2 has no restrictions on the access terminal, and the Femto BS4 has restrictions on the access terminal and the terminal group identification must be "0101" to access.
  • the MS1 can obtain the basic information of the Femto BS2 and the Femto BS3 through the current serving base station Macro BS1; if the group identifier of the terminal MSI is not "0101", the MS1 passes the current service.
  • the base station Macro BS1 acquires basic information of the Femto BS2.
  • a Macro BS1 is present in a wireless communication system, and the carrier frequency used is F1, Femto BS2, and the carrier frequency used is F2, Femto BS3, and the carrier frequency used is F3, Femto BS4, The carrier frequency used is F4, and the serving base station of the terminal MS 1 is Macro BS1, as shown in FIG. Fc is a common carrier frequency resource, and Macro BS1, Femto BS2, Femto BS3, and Femto BS4 can all send messages on Fc.
  • Macro BS1, Femto BS2, Femto BS3, and Femto BS4 are Auxiliary detection signaling is transmitted on the appropriate resource block of the carrier frequency Fc.
  • the upper layer network element informs the Macro BS1, the Femto BS2, the Femto BS3, and the Femto BS4 to send the location information of the resource block for the auxiliary detection signaling on the carrier frequency Fc by corresponding signaling, as shown in FIG. 11, Slc, S2c.
  • S3c and S4c are auxiliary detection signaling transmitted by the Macro BS1, the Femto BS2, the Femto BS3, and the Femto BS4 on the carrier frequency Fc, respectively, and occupy different time-frequency resource blocks.
  • Slc, S2c, S3c, and S4c respectively contain indication information of whether Macro BS1, Femto BS2, Femto BS3, and Femto BS4 allow more new terminals to access.
  • a bit “1" indicates that the corresponding base station allows new terminal access; and a bit “0" indicates that the corresponding base station does not allow new terminal access.
  • the Macro BS1, the Femto BS2, and the Femto BS3 allow the new terminal to access, and the corresponding bits of the auxiliary detection signalings Slc, S2c, and S3c are "1"; if the Femto BS4 does not allow the new terminal to access, the auxiliary The corresponding bit of the detection signaling S4c is "0";
  • the macro BS1 informs the MSI Femto BS2, the Femto BS3, and the Femto BS4 to send the location information of the time-frequency resource block of the auxiliary detection signaling by corresponding signaling, and the terminal MS1 decodes the auxiliary detection signaling to determine the Femto BS2 and the Femto.
  • BS3 is a target base station that can be accessed. Then, the terminal MS 1 can obtain basic information of Femto BS2 and Femto BS3 through the current serving base station Macro BS 1.
  • a Macro BS1 is present in a wireless communication system, and the carrier frequency used is F1, Femto BS2, and the carrier frequency used is F2, Femto BS3, and the carrier frequency used is F3, Femto BS4, The carrier frequency used is F4, and the serving base station of the terminal MS 1 is Macro BS1, as shown in FIG. Fc is a common carrier frequency resource, and Macro BS1, Femto BS2, Femto BS3, and Femto BS4 can all send messages on Fc.
  • Macro BS1, Femto BS2, Femto BS3, and Femto BS4 transmit auxiliary detection signaling on appropriate resource blocks of carrier frequency Fc.
  • the upper layer network element notifies the Macro BS1, the Femto BS2, and the Femto by corresponding signaling.
  • BS3 and Femto BS4 transmit the location information of the resource block of the auxiliary detection signaling on the carrier frequency Fc.
  • Slc, S2c, S3c and S4c are the carrier frequencies of Macro BS1, Femto BS2, Femto BS3 and Femto BS4, respectively.
  • Slc, S2c, S3c, and S4c respectively contain index numbers of Macro BS1, Femto BS2, Femto BS3, Femto BS4, and indication information as to whether more new terminals are allowed to access.
  • the index numbers of Macro BS1, Femto BS2, Femto BS3, and Femto BS4 are respectively "00""01""10""11", and a bit "1" indicates that the corresponding base station allows new terminal access; A bit "0" indicates that the corresponding base station does not allow access to the new terminal.
  • the Macro BS1, the Femto BS2, and the Femto BS3 allow the new terminal to access, and the corresponding bits in the auxiliary detection signalings Slc, S2c, and S3c are "1"; if the Femto BS4 does not allow the new terminal to access, the auxiliary The corresponding bit of the detection signaling S4c is "0"; that is, Slc, S2c, S3c and S4c are respectively "00 1""011""”101""110".
  • the Macro BS1 informs the MS1 to detect the location information of the time-frequency resource block sent by the signaling by the corresponding signaling, and the terminal MS1 decodes the auxiliary detection signaling to determine the target of the base station index number being "01" "10".
  • the base station is an accessible base station. Then, the terminal MS1 can obtain the basic information of the base station with the index number "01" "10", that is, the basic information of the Femto BS2 and the Femto BS3, through the current serving base station Macro BS1.
  • a Macro BS1 is present in a wireless communication system, and the carrier frequency used is F1, Femto BS2, and the carrier frequency used is F2, Femto BS3, and the carrier frequency used is F3, Femto BS4, The carrier frequency used is F4, and the serving base station of the terminal MS 1 is Macro BS1, as shown in FIG. Fc is a common carrier frequency resource, and Macro BS1, Femto BS2, Femto BS3, and Femto BS4 can all send messages on Fc.
  • Macro BS1, Femto BS2, Femto BS3, and Femto BS4 transmit auxiliary detection signaling on appropriate resource blocks of the carrier frequency FC.
  • the upper layer network element informs the Macro BS1, the Femto BS2, the Femto BS3, and the Femto BS4 to send the location information of the resource block for the auxiliary detection signaling on the carrier frequency Fc by corresponding signaling, as shown in FIG. 11, Slc, S2c.
  • S3c and S4c are auxiliary detection signaling transmitted by the Macro BS1, the Femto BS2, the Femto BS3, and the Femto BS4 on the carrier frequency Fc, respectively, and occupy different time-frequency resource blocks.
  • Slc, S2c, S3c, and S4c respectively contain indication information of whether Macro BS1, Femto BS2, Femto BS3, Femto BS4 allows more new terminals to access, and indication information for access terminal type restrictions.
  • a bit “1" indicates that the corresponding base station allows the new terminal to access
  • a bit "0" indicates that the corresponding base station does not allow the new terminal to access.
  • the corresponding bit of the auxiliary detection signaling Slc, S2c, S3c is "1"
  • the auxiliary detection signaling S4c The corresponding bit is "0".
  • the bit "11” indicates that the corresponding base station has a restriction condition on the access terminal
  • the bit "00” indicates that the corresponding base station has no restriction on the access terminal
  • the corresponding bit of the auxiliary detection signaling Slc, S2c, S4c is "00"; assuming that the Femto BS3 has restrictions on the access terminal, the corresponding bit of the auxiliary detection signaling S3c is "11" and is allowed
  • the terminal group ID of the access is "0101".
  • the macro BS1 informs the MSI Femto BS2, the Femto BS3, and the Femto BS4 to send the location information of the time-frequency resource block of the auxiliary detection signaling by corresponding signaling, and the terminal MS1 decodes the auxiliary detection signaling, and first determines the Femto BS2.
  • the Femto BS3 is an accessible target base station, and then it is determined that the Femto BS2 has no restrictions on the access terminal, and the Femto BS4 has restrictions on the access terminal and the terminal group identifier must be "0101" to access.
  • the MS1 can obtain the basic information of the Femto BS2 and the Femto BS3 through the current serving base station Macro BS1; assuming that the group identifier of the terminal MS1 is not "0101", the MS1 passes the current serving base station.
  • Macro BS1 obtains basic information about Femto BS2.
  • a Macro BS1 is present in a wireless communication system, and the carrier frequency used is F1, Femto BS2, and the carrier frequency used is F2, Femto BS3, and the carrier frequency used is F3, Femto BS4, The carrier frequency used is F4, and the serving base station of the terminal MS 1 is Macro BS1, as shown in FIG. Fc is a common carrier frequency resource, and Macro BS1, Femto BS2, Femto BS3, and Femto BS4 can all send messages on Fc.
  • Macro BS1, Femto BS2, Femto BS3, and Femto BS4 transmit auxiliary detection signaling on appropriate resource blocks of carrier frequency Fc.
  • the upper layer network element informs the Macro BS1, the Femto BS2, the Femto BS3, and the Femto BS4 to send the location information of the resource block for the auxiliary detection signaling on the carrier frequency Fc by corresponding signaling, as shown in FIG. 11, Slc, S2c.
  • S3c and S4c are auxiliary detection signaling transmitted by the Macro BS1, the Femto BS2, the Femto BS3, and the Femto BS4 on the carrier frequency Fc, respectively, and occupy the same time-frequency resource block.
  • Slc, S2c, S3c, and S4c respectively contain indication information of whether Macro BS1, Femto BS2, Femto BS3, Femto BS4 allow more new terminals to access, and indication information for access terminal type restrictions.
  • a bit “1" indicates that the corresponding base station allows the new terminal to access
  • a bit "0" indicates that the corresponding base station does not allow the new terminal to access.
  • the corresponding bits of the auxiliary detection signalings Slc, S2c, S3c are "1", and if the Femto BS4 does not allow the new terminal to access, the auxiliary detection signaling S4c
  • the corresponding bit is "0".
  • the bit "11” indicates that the corresponding base station has a restriction condition on the access terminal
  • the bit "00” indicates that the corresponding base station has no restriction on the access terminal, and it is assumed that the Macro BS1, the Femto BS2, and the Femto BS4 do not have access terminals.
  • the corresponding bit of the auxiliary detection signaling Slc, S2c, S4c is "00"; assuming that the Femto BS3 has restrictions on the access terminal, the corresponding bit of the auxiliary detection signaling S3c is "11" and is allowed
  • the terminal group ID of the access is "0101".
  • Macro BS1, Femto BS2, Femto BS3, Femto BS4 use a known set of The different codeword sequences in the orthogonal codeword sequence set spread Slic, S2c, S3c, and S4c and then transmit on the carrier frequency of the Fc.
  • the macro BS1 informs the MSI Femto BS2, the Femto BS3, and the Femto BS4 to send the location information of the time-frequency resource block of the auxiliary detection signaling and the adopted codeword sequence by corresponding signaling, and the terminal MS1 decodes the auxiliary detection signal.
  • the Femto BS2 and the Femto BS3 are the target base stations that can be accessed, and then it is determined that the Femto BS2 has no restrictions on the access terminal, and the Femto BS4 has restrictions on the access terminal and the terminal group identifier must be "0101".
  • the terminal can access.
  • the MS1 can obtain the basic information of the Femto BS2 and the Femto BS3 through the current serving base station Macro BS1; assuming that the group identifier of the terminal MS1 is not "0101", the MS1 passes the current serving base station.
  • Macro BS1 obtains basic information about Femto BS2.
  • a Macro BS1 is present in a wireless communication system, and the carrier frequency used is F1, Femto BS2, and the carrier frequency used is F2, Femto BS3, and the carrier frequency used is F3, Femto BS4, The carrier frequency used is F4, and the serving base station of the terminal MS 1 is Macro BS1, as shown in FIG. Fc is a common carrier frequency resource, and Macro BS1, Femto BS2, Femto BS3, and Femto BS4 can all send messages on Fc.
  • Macro BS1, Femto BS2, Femto BS3, and Femto BS4 transmit auxiliary detection signaling on appropriate resource blocks of carrier frequency Fc.
  • the upper layer network element informs Macro BS1, Femto BS2, and Femto by corresponding signaling.
  • BS3 and Femto BS4 transmit the location information of the resource blocks of the auxiliary detection signaling on the carrier frequency Fc
  • Slc, S2c, S3c and S4c are the auxiliary detections of the Macro BS1, the Femto BS2, the Femto BS3, and the Femto BS4 transmitted on the carrier frequency Fc, respectively.
  • Slc, S2c, S3c and S4c contain Macro BS1, Femto BS2, Femto BS3, Femto BS4 respectively Indication information for multiple new terminal access and indication information for access terminal type restrictions.
  • a bit "1" indicates that the corresponding base station allows the new terminal to access
  • a bit "0" indicates that the corresponding base station does not allow the new terminal to access.
  • the corresponding bits of the auxiliary detection signalings Slc, S2c, S3c are "1", and if the Femto BS4 does not allow the new terminal to access, the auxiliary detection signaling S4c
  • the corresponding bit is "0".
  • the bit "11” indicates that the corresponding base station has restrictions on the access terminal
  • the bit "00” indicates that the corresponding base station has no restriction on the access terminal, assuming that the Macro BS 1, the Femto BS2, and the Femto BS4 are connected to the access terminal.
  • the corresponding bits of the auxiliary detection signaling Slc, S2c, S4c are "00"; assuming that the Femto BS3 has restrictions on the access terminal, the corresponding bit of the auxiliary detection signaling S3c is "11" and is attached The terminal group ID that is allowed to access is "0101".
  • Macro BS1, Femto BS2, Femto BS3 respectively spread Slc, S2c, S3c and transmit them on the carrier frequency of Fc by using different codeword sequences in a set of known orthogonal codeword sequences.
  • the Macro BS1 informs the MSI Femto BS2, Femto BS3, Femto BS4 to transmit the location information of the time-frequency resource block of the auxiliary detection signaling and the codeword sequence adopted by the Femto BS3 by the corresponding signaling, and the terminal MS1 Decoding the auxiliary detection signaling, first determining that the Femto BS2 and the Femto BS3 are the target base stations that can be accessed, and then determining that the Femto BS2 has no restrictions on the access terminal, and the Femto BS4 has restrictions on the access terminal and the terminal group identifier must be The terminal of "0101" can be accessed.
  • the MS1 can obtain the basic information of the Femto BS2 and the Femto BS3 through the current serving base station Macro BS1; if the group identifier of the terminal MSI is not "0101", the MS1 passes the current service.
  • the base station Macro BS1 acquires basic information of the Femto BS2.
  • each base station in the wireless communication network sends auxiliary detection signaling on the working carrier frequency or the common carrier frequency of other base stations, so that the MS only needs to search for one carrier frequency,
  • the auxiliary detection signaling sent by each base station can be obtained, thereby implementing channel estimation for each base station, and switching according to the channel estimation result, and solving the prior art
  • the problem of large signaling overhead during handover and high complexity of MS search saves signaling overhead, reduces the complexity of MS search, and is conducive to power saving.

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Description

辅助检测信令发送方法 技术领域
本发明涉及移动通信技术领域， 尤其涉及无线通信系统中辅助检测信 令的发送方法。 背景技术
无线通信系统中， 基站是指给终端提供服务的设备， 基站通过上下行 链路与终端进行通信， 其中， 下行链路（Downlink, DL )是指基站到终端 的方向， 也称作前向链路； 上行链路（UpLink, UL )是指终端到基站的方 向， 也称作反向链路。 多个终端可同时通过上行链路向基站发送数据， 也 可以通过下行链路同时从基站接收数据。
移动网络中的无线覆盖质量是确定终端享受高速数据、 语音和视频服 务的关键。 目前， 为实现无线网络的无缝覆盖， 需要重点解决室内、 热点 地区的覆盖问题。 目前， 解决上述问题主要有两种方案： 一种是增加宏基 站（ Macro Base Station, Macro BS ) 的数量和密度， Macro BS也可称为 Macro Cell; 另一种是在室内安装家庭基站 （ Femto BS或 Femto Cell )、 小 基站 （ Micro BS或 Micro Cell )及微基站（ Pico BS或 Pico Cell )等发射功 率较低的小基站。 其中， 家庭基站也称作个人基站。
根据 Shannon法则， 目前， 采用传统的宏基站已经接近频语使用的容 量极限， 再增加功率较大的宏基站的数量， 只会造成更多的辐射污染， 而 显著改善室内覆盖； 但利用 Femto BS、 Pico BS等小基站不但可以很好地解 决室内、 热点地区的覆盖问题， 而且在现有的频谱资源上能更大地提高系 统容量。
其中， Femto BS可以给所有用户提供服务， 也可以只给一组特定的授 权用户提供服务。 由于信号衰落、 受干扰影响或者要求更高的服务质量
( Quality of Service, QoS )等原因， 移动终端 ( Mobil Station, MS )可能 从一个基站 （称为服务基站） 的空中接口 （Air Interface )移动到另一个基 站 （称为目标基站） 的空中接口， 这个过程就是切换。 当一个系统中既存 在 Macro BS又存在 Femto BS、Pico BS时，终端可能需要在 Macro BS、Femto BS、 Pico BS之间进行切换。 目前， 主要有两种切换方式： 一种是由 Macro BS广播邻区列表信息（该信息指示 Macro BS附近可用的 BS的一些相关基 本信息）， MS根据该含邻区列表信息， 搜索该含邻区列表中记录的 BS, 从 而进行切换， 这种切换方法信令开销很大， 并且， MS根据邻区列表信息可 能搜索到大量的 Femto BS、 Pico BS,而这些基站对于该 MS可能并不适合； 另一种是由 MS自动搜索适合切换的 Femto BS、 Pico BS, 由于 Femto BS、 Pico BS可能与 Macro BS工作在不同载频， 并且数目 4艮多， 使用该方法会 增加 MS的搜索复杂度， 并且不利于节电。 发明内容
有鉴于此， 本发明提供了辅助检测信令的传输方法， 用以解决现有技 术中 MS在 Macro BS、 Femto BS、 Micro BS和 Pico BS之间切换时信令的 开销较大以及 MS搜索的复杂度较高的问题。
一种辅助检测信令发送方法， 基站组内的每个基站均分别确定自身为 第一基站， 该方法包括：
针对所述基站组内的第一基站而言， 该基站组内除该第一基站之外的 其他基站分别在该第一基站的载频上发送辅助检测信令。
所述基站组包括预定范围内全部或部分基站。
所述预定范围的基站包括：
一个或多个基站以及所述一个或多个基站覆盖范围内的家庭基站、 和 / 或小基站、 和 /或微基站； 或者， 工作在全部或部分可用载频资源上的多个基站， 包括家庭基站、 小基 站、 微基站或宏基站。
所述载频包括： 所述第一基站工作的一个或多个载频。
发送所述辅助检测信令的时频资源的位置， 通过以下任一方式确定： 由标准缺省配置；
由所述第一基站确定；
由所述第一基站与所述其它基站协商确定；
由所述基站组中的基站的上层网元确定；
由所述上层网元与所述第一基站协商确定；
由所述上层网元、 所述第一基站和所述其它基站共同协商确定。
所述上层网元包括以下之一： 基站控制器、 接入服务网、 连接服务网、 核心网网关。
在发送所述辅助检测信令之后， 该方法还包括：
所述第一基站以预定方式向终端发送所述时频资源的位置信息， 其中， 所述预定方式包括以下之一： 单播、 组播或广播。
在所述第一基站向所述终端发送所述位置信息之前， 所述方法还包括： 所述上层网元向所述第一基站发送所述位置信息。
所述时频资源位于下行子帧内， 或者位于上行子帧和下行子帧的转换 间隔内。
所述辅助检测信令以与终端约定的信令格式发送， 且所述辅助检测信 令携带的内容为与所述终端约定的内容。
所述其它基站中的一个基站发送的所述辅助检测信令携带的内容包括 以下之一或其任意组合： 该基站的导频序列、 该基站的同步信道、 该基站 的类型、 该基站的索引号、 该基站对终端的接入限制条件、 该基站是否能 够提供服务的指示信息、 该基站是否允许更多终端接入的指示信息。 所述限制条件包括： 所述基站允许接入的终端的类型， 和 /或允许接入 的终端标识， 和 /或允许接入的终端组标识。
所述其它基站在所述第一基站的所述载频上发送所述辅助检测信令所 占用的时频资源全部相同或部分相同或完全不同。
所述其它基站在所述第一基站的所述载频上发送所述辅助检测信令所 占用的时频资源相同； 且每个基站发送的辅助检测信令为相互正交或准正 交的码字序列。
所述其它基站在所述第一基站的所述载频上发送所述辅助检测信令所 占用的时频资源块相同； 且每个基站发送的辅助检测信令为以预定序列作 为扩频码对预设信息进行扩频后生成的信令， 其中， 所述预定序列为相互 正交或准正交的码字序列。
在发送所述辅助检测信令之后， 所述方法还包括：
终端接收所述其它基站发送的全部或部分辅助检测信令。
在所述终端接收到所述全部或部分辅助检测信令之后， 所述方法还包 括：
所述终端根据接收到的所述全部或部分辅助检测信令确定切换的目标 基站。
在所述终端接收到所述全部或部分辅助检测信令之后， 所述方法还包 括：
所述终端根据接收到的所述全部或部分辅助检测信令， 确定需要获取 信息的目标基站；
所述终端向当前的服务基站发送请求， 请求所述目标基站的相关信息。 一种辅助检测信令发送方法， 包括：
对于基站组内的基站， 所述基站在公共载频上发送辅助检测信令。 所述基站组包括预定范围内全部或部分基站。 所述预定范围的所述基站包括：
一个或多个基站以及所述基站覆盖范围内的家庭基站、 和 /或小基站、 和 /或微基站； 或者，
工作在全部或部分可用载频资源上的多个基站， 包括家庭基站、 小基 站、 微基站或宏基站。
所述公共载频包括： 所述基站组内基站能够发送信令的一个或多个载 频。
基站组内的基站分别发送所述辅助检测信令的时频资源的位置信息通 过以下任一方式确定：
由标准缺省配置；
由发送所述辅助检测信令的基站确定；
由所述基站组内的基站的上层网元确定；
由所述上层网元与发送所述辅助检测信令的基站协商确定。
所述上层网元包括以下之一： 基站控制器、 接入服务网、 连接服务网、 核心网网关。
在所述基站发送所述辅助检测信令之后， 所述方法还包括：
所述基站以预定方式发送所述公共载频的信息， 其中， 所述预定方式 包括以下之一： 单播、 组播或广播。
在所述基站发送所述公共载频的信息之前， 所述方法还包括： 所述上层网元向所述基站发送所述公共载频的信息。
所述时频资源位于下行子帧内， 或者位于上行子帧和下行子帧的转换 间隔内。
所述辅助检测信令以与终端约定的信令格式发送， 且所述辅助检测信 令携带的内容为与所述终端约定的内容。
所述辅助检测信令携带的内容包括以下之一或其任意组合： 所述基站的导频序列；
所述基站的同步序列；
所述基站的类型；
所述基站的索引号；
所述基站对终端的接入限制条件；
所述基站是否能够提供服务的指示信息；
所述基站是否允许更多终端接入的指示信息。
所述限制条件包括： 所述基站允许接入的终端的类型， 和 /或允许接入 的终端标识， 和 /或允许接入的终端组标识。
所述基站组内的基站在同一公共载频上发送辅助检测信令占用的时频 资源完全相同或部分相同或完全不同。
所述基站组内的基站在同一公共载频上发送所述辅助检测信令占用的 时频资源相同， 且每个基站发送的辅助检测信令为相互正交或准正交的码 字序列。
所述基站组内的基站在同一公共载频上发送辅助检测信令占用的时频 资源相同， 且每个基站发送的辅助检测信令为以预定序列作为扩频码对预 设的信息进行扩频后生成的信令， 其中， 所述预定序列为相互正交或准正 交的码字序列。
在发送所述辅助检测信令之后， 所述方法还包括：
基站组下的终端在所述公共载频上接收辅助检测信令。
所述终端在所述公共载频上接收到辅助检测信令之后， 所述方法还包 括：
所述终端根据接收到的所述辅助检测信令， 确定切换的目标基站。 所述终端在所述公共载频上接收到辅助检测信令之后， 所述方法还包 所述终端根据接收到的所述辅助检测信令， 确定需要获取信息的目标 基站；
所述终端向当前的服务基站发送请求， 请求所述目标基站的相关信息。 通过本发明的上述至少一个方案， 通过无线通信网络中的各个基站在 其它基站的工作载频或公共载频上发送辅助检测信令， 使得 MS 只需要搜 索一个载频， 便可得到每个基站发送的辅助检测信令， 从而实现对每个基 站的信道估计， 并根据信道估计结果进行切换， 解决了现有技术中在切换 时存在的信令开销较大以及 MS搜索的复杂度较高的问题， 节约了信令开 销， 降低了 MS搜索的复杂度， 有利于节电。
本发明的其它特征和优点将在随后的说明书中阐述， 并且， 部分地从 说明书中变得显而易见， 或者通过实施本发明而了解。 本发明的目的和其 他优点可通过在所写的说明书、 权利要求书、 以及附图中所特别指出的结 构来实现和获得。 附图说明
图 1为根据本发明实施例的一种辅助检测信令的传输方法的流程图； 图 2为根据本发明实施例的另一种辅助检测信令的传输方法的流程图； 图 3为本发明实施例中无线通信系统中一种基站和终端分布示意图； 图 4为实施例 1中辅助检测信令发送方法的示意图；
图 5为实施例 2中辅助检测信令发送方法的示意图；
图 6为实施例 3中辅助检测信令发送方法的示意图；
图 7为本发明实施例中无线通信系统中又一种基站和终端分布示意图； 图 8为实施例 4中辅助检测信令发送方法的示意图；
图 9为实施例 5中辅助检测信令发送方法的示意图；
图 10为实施例 6中辅助检测信令发送方法的示意图；
图 11为实施例 7中辅助检测信令发送方法的示意图； 图 12为实施例 8中辅助检测信令发送方法的示意图；
图 13为实施例 9中辅助检测信令发送方法的示意图；
图 14为实施例 10中辅助检测信令发送方法的示意图；
图 15为实施例 11中辅助检测信令发送方法的示意图；
图 16为实施例 12中辅助检测信令发送方法的示意图；
图 17为实施例 13中辅助检测信令发送与接收方法的流程图； 图 18 为本发明实施例中无线通信系统中又一种基站和终端分布示意 图；
图 19为实施例 14中辅助检测信令发送与接收方法的流程图。 具体实施方式 本发明实施例针对现有技术在无线通信系统中切换时存在的信令开销 大或 MS搜索的复杂度较高的问题， 提出了一种辅助检测信令发送方案。 在本发明实施例中， 该方案有两种实现方式， 一种方式为预定范围内的基 站组中的每个基站， 该基站组中的其它基站分别在其工作载频上发送辅助 检测信令， 而 MS 可以获取在上述基站组内的每个基站在其工作载频上发 送的辅助检测信令， 从而获得每个基站的相关信息； 另一种方式为在预定 范围内的基站组中的每个基站在一个或多个公共载频上发送辅助检测信 令， MS在一个或多个公共载频上进行扫描， 获取基站组内每个基站发送的 辅助检测信令， 从而获得每个基站的相关信息。
在本发明实施例中， 上述预定范围可以根据具体需要进行设置， 比如， 该预定范围可以包括： 一个基站以及该基站覆盖范围内的所有 Femto BS、 Pico BS、 Micro BS, 或者， 该预定范围包括工作在当前可用载频资源上的 所有基站（包括 Femto BS、 Pico BS、 Micro BS )。
在不沖突的情况下， 本申请中的实施例及实施例中的特征可以相互组 合。 以下结合附图对本发明的优选实施例进行说明， 应当理解， 此处所描 述的优选实施例仅用于说明和解释本发明， 并不用于限定本发明。
为了便于理解， 下面分别对本发明实施例提供的辅助检测信令发送与 接收方案的两种实现方式进行说明。
根据本发明实施例， 首先提供了一种辅助检测信令的传输方法。
图 1为根据本发明实施例的辅助检测信令的传输方法的流程图，如图 1 所示，根据本发明实施例的辅助检测信令的传输方法主要包括以下处理（步 骤 S101-步骤 S103 ):
步骤 S101: 对于基站组内的每个基站， 该基站组内的其它基站分别在 该基站的载频上发送辅助检测信令， 其中， 上述基站组包括该预定范围内 的部分或全部基站；
步骤 S103: MS接收上述基站组中每个基站发送的全部或部分辅助检 测信令。
以下进一步描述上述各处理的细节。
为了便于描述， 在以下面的描述中， H殳预定范围内包括 A、 B、 C和 D 四个基站， 而本发明实施例中的基站组包括该预定范围内的全部基站， 其中， A的工作载频为 Fl , B的工作载频为 F2, C的工作载频为 F3 , D的 工作载频为 F4.
(一） 步骤 S101
在具体实施过程中， 以上述包括 A、 B、 C和 D四个基站的基站组为例， 对于基站 A, B、 C和 D三个基站分别在基站 A的工作载频 F1上发送辅助 检测信令； 而对于基站 B, A、 C和 D三个基站分别在基站 B的工作载频 F2上发送辅助检测信令； 对于基站 C, A、 B和 D三个基站分别在基站 C 的工作载频 F3上发送辅助检测信令； 对于基站 D, A、 B和 C三个基站分 别在基站 D的工作载频 F4上发送辅助检测信令。 在具体实施过程， 上述预定范围内的基站为工作在当前可用载频资源 上的基站， 包括： Femto BS、 Pico BS、 Macro BS或 Micro BS。
在具体实施过程中， 基站发送辅助检测信令的时频资源块的位置的确 定方式包括但不限于以下几种：
( 1 ) 由当前基站确定， 以上述包括 A、 B、 C和 D四个基站的预定范 围为例， 对于基站 A, B、 C和 D发送辅助检测信令的时频资源块的位置为 基站 A确定。
( 2 )由当前基站与发送辅助检测信令的基站确定， 以上述包括 A、 B、 C和 D四个基站的预定范围为例， 对于基站 A, 基站 B、 C、 D在基站 A 的载频 Fl上发送辅助检测信令的时频资源块的位置可以通过基站 A与基站 B、 C和 D相互协商确定。
( 3 ) 由基站组内的基站的上层网元确定；
在具体实施过程中， 上层网元包括但不限于： 基站控制器、 接入服务 网、 连接月良务网和核心网网关。
( 4 ) 由上层网元与当前基站协商确定， 以上述包括 A、 B、 C和 D四 个基站的预定范围为例， 对于基站 A, 基站 B、 C和 D发送辅助检测信令 的时频资源块的位置为基站 A和上层网元协商确定。
( 5 ) 由上层网元、 当前基站和发送辅助检测信令共同协商确定， 以上 述包括 A、 B、 C和 D四个基站的基站组为例， 对于基站 A, 基站 B、 C和 D在基站 A的载频 F1上发送辅助检测信令的时频资源块的位置可以由基站 A、 基站 B、 C、 D和上层网元共同协商确定。
( 6 )按照标准缺省配置。
在具体实施过程中， 也可以按照预先配置的标准， 确定每个基站发送 辅助检测信令的时频资源块的位置。
在具体实施过程中， 如果上述时频资源块的位置的确定没有某一 MS 当前的服务基站参与， 则该服务基站可以向其它基站发送请求， 以获取该 时频资源块的位置信息， 然后再将该位置信息发送给 MS。 或者， 在上层网 元确定时频资源块的位置后， 将位置信息发送给 MS 的服务基站， 再由服 务基站发送给 MS ,使得 MS在上述公共作载频上扫描基站组内的基站在该 公共载频上发送的辅助检测信令。
在具体实施过程中， 发送辅助检测信令的时频资源块可以位于下行子 帧内， 也可以位于上行子帧和下行子帧的转换间隔内。
并且， 基站组的每个基站发送的辅助检测信令可以通过以 MS 约定的 信令格式发送， 且该辅助检测信令携带的内容也为预先与 MS约定的内容。
另外， 基站组的每个基站发送的辅助检测信令也可以携带具体的内容， 具体可以包括以下之一或其任意组合：
( 1 )发送辅助检测信令的基站的导频序列， 具体地， 以上述包括 A、 B、 C和 D四个基站的基站组为例， 对于基站 A, 基站 B在基站 A的载频 F1上发送辅助检测信令携带的内容包括基站 B的导频序列， 而基站 C在基 站 A的载频 F1上发送辅助检测信令携带的内容包括基站 C的导频序列， 同理， 基站 D在基站 A的载频 F1上发送辅助检测信令携带的内容包括基 站 D的导频序列；
( 2 )发送辅助检测信令的基站的类型（ Femto BS或 Pico BS或 Macro BS 或 Micro BS ), 具体地， 以上述包括 A、 B、 C和 D四个基站的基站组为例， 对于基站 A, 基站 B在基站 A的载频 F1上发送辅助检测信令携带的内容 包括基站 B的类型， 而基站 C在基站 A的载频 F1上发送辅助检测信令携 带的内容包括基站 C的类型， 同理， 基站 D在基站 A的载频 F1上发送辅 助检测信令携带的内容包括基站 D的类型；
具体地， 基站的类型是指该基站为 Femto BS、 Pico BS、 Macro BS或 Micro BS。 ( 3 )发送辅助检测信令的基站的索引号 （包括该基站的 Cell ID, 或 BS ID ), 具体地， 以上述包括 A、 B、 C和 D四个基站的基站组为例， 对于 基站 A, 基站 B在基站 A的载频 F1上发送辅助检测信令携带的内容包括 基站 B的 Cell ID或 BS ID, 而基站 C在基站 A的载频 Fl上发送辅助检测 信令携带的内容包括基站 C的 Cell ID或 BS ID, 同理，基站 D在基站 A的 载频 F1上发送辅助检测信令携带的内容包括基站 D的 Cell ID或 BS ID;
( 4 )发送辅助检测信令的基站对接入的 MS的限制条件， 具体地， 该 限制条件可以包括： 该基站允许接入的 MS 的类型 （即该基站是否只允许 特殊类型的 MS接入）， 和 /或， 该基站允许接入的 MS的标识， 和 /或该基 站允许接入的终端组标识。
( 5 )发送辅助检测信令的基站是否能够提供服务的指示信息。
( 6 )该基站是否允许更多终端接入的指示信息。
在辅助检测信令携带上述内容的情况下， 预定范围内的各个基站在当 前基站的载频上发送辅助检测信令占用的时频资源可以全部相同或部分相 同或完全不同， 当有多个基站发送辅助检测信令占用的时频资源相同时， 为了便于 MS 分辨出不同基站发送的辅助检测信令， 这些基站在该时频资 源上发送的辅助检测信令需要满足以下之一的要求：
( 1 )每个基站在该时频资源上发送的辅助检测信令为相互正交或准正 交的码字序列；
以上述包括 A、 B、 C和 D四个基站的预定范围为例， 对于基站 A, 基 站 B、 C和 D在基站 A的载频 F1上发送辅助检测信令为相互正交或准正交 的码字序列。
( 2 )每个基站在该时频资源上发送的辅助检测信令为以预定序列作为 扩频码对预设信息进行扩频后生成的信令， 其中， 上述预定序列为相互正 交或准正交的码字序列。 其中， 上述预设信息为辅助检测信令需要携带的 内容， 比如， 基站的类型、 索引号等。
(二） 步骤 S103
在具体实施过程中， 如果 MS从其当前的服务基站获取到上述基站组 内每个基站发送辅助检测信令的时频资源块的位置信息， 则 MS 可以根据 该位置信息进行扫描， 解码出每个基站在该公共载频上发送的辅助检测信 令。
如果该 MS没有接收到上述位置信息，则该 MS在其工作载频上进行扫 描， 只至扫描到每个基站在该载频上发送的辅助检测信令。
MS 在获取到上述基站组中每个基站在其工作载频上发送的辅助检测 信令后， 该 MS 可以根据获取的每个基站的辅助检测信令， 确定是否要进 行切换， 如果要进行切换， 则确定切换的目标基站， 在确定切换的目标基 站之后， 该 MS 可以向其当前的服务基站发送请求， 以获取该目标基站的 相关信息， 从而进行切换。 并且， 该 MS 可以根据获取日每个基站日辅助 检测信令， 确定是否需要获取其中某个基站的相关信息， 在确定需要获取 某个基站的相关信息时， 该 MS 可以向其当前服务基站发送请求， 请求获 取该基站的相关信息。
根据本发明实施例提供的上述辅助检测信令的传输方法，可以使得 MS 只在其工作载频上进行搜索， 降低了搜索的复杂度。
根据本发明实施例， 还提供了另一种辅助检测信令的传输方法。
图 2为根据本发明实施例的另一种辅助检测信令的传输方法的流程图， 如图 2所示， 该传输方法主要包括以下步骤（步骤 S201-步骤 S203 ):
步骤 S201: 预定范围内的基站组中的每个基站在该公共载频上发送辅 助检测信令；
步骤 S203: MS在上述公共载频上接收该基站组内的每个基站发送的 辅助检测信令。 以下进一步描述上述各处理的细节。
(一） 步骤 S201
在本发明实施例中， 上述公共载频可以为当前无线通信系统中所有基 站（ Macro BS和 /或 Femto BS和 /或 Pico BS和 /或 Micro BS )都能发送信令 的载频资源， 也可以是一组基站（ Macro BS和 /或 Femto BS和 /或 Pico BS 和 /或 Micro BS ) 的都能发送信令的载频资源。
在具体实施过程中， 以包括 A、 B、 C和 D四个基站的基站组为例， 基 站 A、 B、 C和 D四个基站分别在一个或多个公共载频上发送辅助检测信令， 并且， 当基站 A、 B、 C和 D四个基站在多个公共载频（比如， 两个公共载 频 F1和 F2 )上发送辅助检测信令，可以由其中的不同基站使用不同的公共 载频 （比如， 基站 A、 B使用 F1 , 基站 C、 D使用 F2 )。
并且， 上述预定范围内的基站为工作在当前可用载频资源上的基站， 包括： Femto BS、 Pico BS、 Macro BS或 Micro BS。
在具体实施过程中， 基站发送辅助检测信令的时频资源块的位置的确 定方式包括但不限于以下几种：
( 1 ) 由发送辅助检测信令的基站确定， 以上述包括 A、 B、 C和 D四 个基站的预定范围为例， 基站 A发送辅助检测信令的时频资源块的位置可 以由基站 A确定， 也可以由基站 A、 B、 C和 D四个基站协商确定。
( 2 ) 由预设范围内的基站的上层网元确定；
在具体实施过程中， 上层网元包括但不限于： 基站控制器、 接入服务 网、 连接月良务网和核心网网关。
( 3 )由上层网元与发送辅助检测信令的基站协商确定，以上述包括 A、 B、 C和 D四个基站的预定范围为例， 基站 A发送辅助检测信令的时频资 源块的位置为基站 A和上层网元协商确定， 或由基 A、 B、 C和 D与上 层网元确定。 ( 4 )按照标准缺省配置。
在具体实施过程中， 如果上述时频资源块的位置的确定有 MS 当前的 服务基站参与， 则该服务基站在确定时频资源块的位置后， 将以单播、 组 播或广播的形式将公共载频的信息发送给 MS, MS根据该信息在上述公共 载频上进行扫描， 从而获取到基站组内的基站在该公共载频上发送的辅助 检测信令。
如果上述时频资源块的位置的确定没有 MS 当前的服务基站参与， 则 该服务基站可以向其它基站发送请求， 以获取公共载频的信息， 然后再将 该信息发送给 MS。 或者， 在上层网元确定时频资源块的位置后， 将公共载 频的信息发送给 MS的服务基站， 再由服务基站发送给 MS, 使得 MS在上 述公共作载频上扫描基站组内的基站在该公共载频上发送的辅助检测信 令。
在具体实施过程中， 发送辅助检测信令的时频资源块可以位于下行子 帧内， 也可以位于上行子帧和下行子帧的转换间隔内。
并且， 基站组的每个基站发送的辅助检测信令可以通过以 MS 约定的 信令格式发送， 且该辅助检测信令携带的内容也为预先与 MS约定的内容。
另外， 基站组的每个基站发送的辅助检测信令也可以携带具体的内容, 具体可以包括以下之一或其任意组合：
( 1 )发送辅助检测信令的基站的导频序列；
( 2 )发送辅助检测信令的基站的类型（ Femto BS或 Pico BS或 Macro BS 或 Micro BS );
( 3 )发送辅助检测信令的基站的索引号 （包括该基站的 Cell ID, 或 BS ID );
( 4 )发送辅助检测信令的基站对接入的 MS的限制条件， 具体地， 该 限制条件可以包括： 该基站允许接入的 MS 的类型 （即该基站是否只允许 特殊类型的 MS接入 ), 和 /或， 该基站允许接入的 MS的数量。
( 5 )发送辅助检测信令的基站是否能够提供服务的指示信息。
( 6 )发送辅助检测信令日基站是否允许更多终端接入的指示信息。 在辅助检测信令携带上述内容的情况下， 基站组内的各个基站在同一 公共载频上发送辅助检测信令占用日时频资源可以完全相同， 也可以部分 相同， 也可以完成不同。 当有多个基站在同一公共载频的相同时频资源上 发送辅助检测信令时， 为了便于 MS分辨出不同基站发送的辅助检测信令， 这些基站在该公共载频的相同时频资源上发送的辅助检测信令需要满足以 下之一的要求：
( 1 )每个基站在同一公共载频的相同时频资源上发送的辅助检测信令 为相互正交或准正交的码字序列；
以上述包括 A、 B、 C和 D四个基站的基站组为例， 如果这四个基站都 在同一公共载频的同一时隙发送， 则基站 A、 B、 C和 D发送辅助检测信令 为相互正交或准正交的码字序列。
( 2 )每个基站在同一公共载频的同一时频资源上发送的辅助检测信令 为以预定序列作为扩频码对预设信息进行扩频后生成的信令， 其中， 上述 预定序列为相互正交或准正交的码字序列。 其中， 上述预设信息为辅助检 测信令需要携带的内容， 比如， 基站的类型、 索引号等。
(二） 步骤 S203
在具体实施过程中， 如果 MS从其当前的服务基站获取到基站组内每 个基站发送辅助检测信令的公共载频的信息， 则 MS 可以根据该信息在一 个或多个公共载频上进行扫描， 解码出每个基站在各个公共载频上发送的 辅助检测信令。
MS 在获取到上述基站组中每个基站在各个公共工作载频上发送的辅 助检测信令后， 该 MS 可以根据获取的每个基站的辅助检测信令， 确定是 否要进行切换， 如果要进行切换， 则确定切换的目标基站， 在确定切换的 目标基站之后， 该 MS 可以向其当前的服务基站发送请求， 以获取该目标 基站的相关信息， 从而进行切换。 并且， 该 MS 可以根据获取日每个基站 日辅助检测信令， 确定是否需要获取其中某个基站的相关信息， 在确定需 要获取某个基站的相关信息时， 该 MS 可以向其当前服务基站发送请求， 请求获取该基站的相关信息。
根据本发明实施例提供的上述辅助检测信令的传输方法，可以使得 MS 只在公共载频上进行搜索， 降低了搜索的复杂度， 减少了切换时使用的信 令。
为了进一步描述本发明实施例提供的技术方案的具体实施方式， 以下 以具体地实施例对本发明实施例提供的技术方案进行说明。
实施例 1
在本实施例中，一个无线通信系统中同时存在 Macro BS1 ,其使用的载 频为 Fl、 Femto BS2, 其使用的载频为 F2、 Femto BS3, 其使用的载频为 F3、 Femto BS4, 其使用的载频为 F4, 终端 MS 1的服务基站为 Macro BS1 , 如图 3所示。
在该无线通信系统中， Macro BSl在 F2、 F3、 F4载频适当的资源块上 发送辅助检测信令， Femto BS2在 Fl、 F3、 F4载频适当的资源块上发送辅 助检测信令， Femto BS3在 Fl、 F2、 F4载频适当的资源块上发送辅助检测 信令， Femto BS4在 Fl、 F2、 F3载频适当的资源块上发送辅助检测信令。
本实施例中， 以 Macro BS1的载频 F1为例， Macro BS1通过相应信令 告知 Femto BS2、 Femto BS3和 Femto BS4在载频 Fl上发送辅助检测信令 的资源块的位置信息， 如图 4所示， S21、 S31和 S41分别是 Femto BS2、 Femto BS3、 Femto BS4在载频 Fl上发送的辅助检测信令， S21、 S31和 S41 分别为一组导频序列， 且 S21、 S31和 S41占有相同的时隙 T1 , 因此， S21、 S31和 S41相互正交。
在 Femto BS2上其它基站发送辅助检测信令占用的时隙 T2、 在 Femto BS3上其它基站发送辅助检测信令占用的时隙 T3、 在 Femto BS4上其它基 站发送辅助检测信令占用的时隙 T4, 其中， Tl、 Τ2、 Τ3和 Τ4可以相同或 者不同。
在本实施例中， Macro BS1通过相应信令告知 MS1扫描 F1载频上的时 隙 T1 ,解码辅助检测信令，根据辅助检测信令中的导频信息进行信道估计， 评估 Femto BS2、 Femto BS3和 Femto BS4的信道质量是否适合于切换。 假 设在本实施例中终端 MS1通过解码辅助检测信令 S21、 S31和 S41 , 确定 Femto BS2为切换的目标基站。则终端 MS 1可以通过当前的服务基站 Macro BS1获取 Femto BS2的基本信息， 准备进行切换操作； 或者直接扫描 Femto BS2的载频 F2获取 Femto BS2的基本信息， 发起切换操作。
实施例 2
在本实施例中一个无线通信系统中同时存在 Macro BS1 , 使用的载频 为 Fl、 Femto BS2,使用的载频为 F2、 Femto BS3,使用的载频为 F3、 Femto BS4, 使用的载频为 F4, 终端 MS1的服务基站为 Macro BS1 , 如图 3所示。
在本实施例中， Macro BSl在 F2、 F3、 F4载频适当的资源块上发送辅 助检测信令， Femto BS2在 Fl、 F3、 F4载频适当的资源块上发送辅助检测 信令， Femto BS3在 Fl、 F2、 F4载频适当的资源块上发送辅助检测信令， Femto BS4在 Fl、 F2、 F3载频适当的资源块上发送辅助检测信令。
本实施例中， 以 Macro BS1的载频 F1为例， Macro BS1通过相应信令 告知 Femto BS2、 Femto BS3和 Femto BS4在载频 F1上发送辅助检测信令 的资源块的位置信息， 如图 5所示， S21、 S31和 S41分别是 Femto BS2、 Femto BS3、 Femto BS4在载频 Fl上发送的辅助检测信令， S21、 S31和 S41 分别为一组导频序列， 并且 S21、 S31和 S41分别占有不同的时隙 T2、 Τ3 和 T4。
其中， 每个基站在其它基站的载频上发送的辅助检测信令占用的时隙 资源可以相同或不同。
本实施例中， Macro BS1通过相应信令告知 MS1扫描 F1载频上的时隙 T2、 Τ3和 Τ4,解码辅助检测信令，根据导频信息进行信道估计，评估 Femto BS2、 Femto BS3和 Femto BS4的信道质量是否适合切换。 假设本实施例中 终端 MS1通过解码辅助检测信令 S21、 S31和 S41 ,确定 Femto BS2为切换 的目标基站。 则终端 MS 1可以通过当前的服务基站 Macro BS1获取 Femto BS2的基本信息， 准备进行切换操作； 或者直接扫描 Femto BS2的载频 F2 以获取 Femto BS2的基本信息， 从而发起切换操作。
实施例 3
在本实施例中， 一个无线通信系统中同时存在 Macro BS1 , 使用的载 频为 Fl、 Femto BS2, 使用的载频为 F2、 Femto BS3, 使用的载频为 F3、 Femto BS4, 使用的载频为 F4, 终端 MS1的月良务基站为 Macro BS1 , 如图 3 所示。
在本实施例中， Macro BSl在 F2、 F3、 F4载频适当的资源块上发送辅 助检测信令， Femto BS2在 Fl、 F3、 F4载频适当的资源块上发送辅助检测 信令， Femto BS3在 Fl、 F2、 F4载频适当的资源块上发送辅助检测信令， Femto BS4在 Fl、 F2、 F3载频适当的资源块上发送辅助检测信令。
本实施例中， 以 Macro BS1的载频 F1为例， Macro BS1通过相应信令 告知 Femto BS2、 Femto BS3和 Femto BS4在载频 Fl上发送辅助检测信令 的资源块的位置信息， 如图 6所示， S21、 S31和 S41分别是 Femto BS2、 Femto BS3、 Femto BS4在载频 Fl上发送的辅助检测信令， S21、 S31和 S41 占有相同的时隙 T1 , 并且 S21、 S31和 S41分别为预先确定的一组正交或 准正交码子序列中的一个码子序列。 在 Femto BS2上其它基站发送辅助检测信令占用的时隙 T2、 在 Femto BS3上其它基站发送辅助检测信令占用的时隙 T3、 在 Femto BS4上其它基 站发送辅助检测信令占用的时隙 T4, 其中， Tl、 Τ2、 Τ3和 Τ4可以相同或 者不同。
本实施例中 , Macro BS1通过相应信令告知 MS1扫描 F1载频上的时隙
T1 , 通过解码辅助检测信令， 进行信道估计， 评估 Femto BS2、 Femto BS3 和 Femto BS4的信道质量是否适合切换。 假设本实施例中终端 MS1通过解 码辅助切换信令 S21、 S31和 S41 , 确定 Femto BS2为切换的目标基站。 则 终端 MS 1可以通过当前的服务基站 Macro BS1获取 Femto BS2的基本信息， 准备进行切换操作； 或者直接扫描 Femto BS2的载频 F2获取 Femto BS2的 基本信息， 发起切换操作。
实施例 4
在本实施例中，一个无线通信系统中同时存在 Macro BS1 ,使用的载频 为 Fl、 Femto BS2,使用的载频为 F2、 Femto BS3,使用的载频为 F3、 Femto BS4, 使用的载频为 F4, 终端 MS2的服务基站为 Femto BS2, 如图 7所示。
在本实施例中， 每个基站在本基站邻区列表里描述的基站的载频的适 当资源块上发送辅助检测信令；
在本实施例中假设 Macro BS1 的邻区列表中包含 Femto BS2、 Femto BS3、 Femto BS 4； Femto BS2的邻区列表中包含 Macro BS1和 Femto BS3; Femto BS3的邻区列表中包含 Macro BS1和 Femto BS2; Femto BS4的邻区 列表中包含 Macro BS 1； 则 Macro BS 1在 F2、 F3、 F4载频适当的资源块上 发送辅助检测信令， Femto BS2在 Fl、 F3载频适当的资源块上发送辅助检 测信令， Femto BS3在 Fl、 F2载频适当的资源块上发送辅助检测信令， Femto BS4在 F1载频适当的资源块上发送辅助检测信令。
本实施例中， 以 Femto BS2的载频 F2为例， Femto BS2通过相应信令 告知 Macro BS1、 Femto BS3在载频 F2上发送辅助检测信令的资源块的位 置信息， 如图 8所示， S12、 S32分别是 Macro BS1、 Femto BS3在载频 F2 上发送的辅助检测信令， S12、 S32占有相同的时隙 T2, S12、 S32分别为一 组导频序列， 并且 S12和 S32相互正交。
在 Macro BS 1上其它基站发送辅助检测信令占用的时隙 T1、 在 Femto
BS3上其它基站发送辅助检测信令占用的时隙 T3、 在 Femto BS4上其它基 站发送辅助检测信令占用的时隙 T4, 其中， Tl、 Τ2、 Τ3和 Τ4可以相同或 者不同。
本实施例中， Femto BS2通过相应信令告知 MS2扫描 F2载频上的时隙 T2,解码辅助检测信令，根据导频信息进行信道估计，评估 Macro BS1、 Femto BS3的信道质量是否适合切换。 假设本实施例中终端 MS2通过解码辅助检 测信令 S12、 S32, 确定 Macro BS1为切换的目标基站。 则终端 MS2可以通 过当前的服务基站 Femto BS2获取 Macro BS1的基本信息， 准备进行切换 操作； 或者直接扫描 Macro BS1的载频 F1获取 Macro BS1的基本信息， 发 起切换操作。
实施例 5
在本实施例中， 一个无线通信系统中同时存在 Macro BS1 , 使用的载 频为 Fl、 Femto BS2, 使用的载频为 F2、 Femto BS3, 使用的载频为 F3、 Femto BS4, 使用的载频为 F4, 终端 MS2的服务基站为 Femto BS2, 如图 7 所示。
在本实施例中， 每个基站在本基站邻区列表里描述的基站的载频的适 当资源块上发送辅助检测信令。
本实施例中假设 Macro BS 1的邻区列表中包含 Femto BS2、 Femto BS3、 Femto BS 4； Femto BS2的邻区列表中包含 Macro BS1和 Femto BS3; Femto BS3的邻区列表中包含 Macro BS1和 Femto BS2; Femto BS4的邻区列表中 包含 Macro BS1 ; 则 Macro BS1在 F2、 F3、 F4载频适当的资源块上发送辅 助检测信令， Femto BS2在 Fl、 F3载频适当的资源块上发送辅助检测信令， Femto BS3在 Fl、 F2载频适当的资源块上发送辅助检测信令， Femto BS4 在 F1载频适当的资源块上发送辅助检测信令。
本实施例中， 以 Femto BS2的载频 F2为例， Femto BS2通过相应信令 告知 Macro BS1、 Femto BS3在载频 F2上发送辅助检测信令的资源块的位 置信息， 如图 9所示， S12、 S32分别是 Macro BS1、 Femto BS3在载频 F2 上发送的辅助检测信令， S12、 S32 分别是一组导频序列， 并且 S12、 S32 分别占有不同的时隙 T1和 T3。
其中， 每个基站在其邻区列表中描述的基站的载频上发送的辅助检测 信令占用的时隙资源可以相同或不同。
本实施例中， Femto BS2通过相应信令告知 MS 2扫描 F 2载频上的时 隙 T1和 T3, 解码辅助检测信令， 根据导频信息进行信道估计， 评估 Macro BS1、 Femto BS3的信道质量是否适合切换。 假设本实施例中终端 MS2通 过解码辅助检测信令 S12、 S32, 确定 Macro BS1为切换的目标基站。 则终 端 MS2可以通过当前的服务基站 Femto BS2获取 Macro BS1的基本信息， 准备进行切换操作；或者直接扫描 Macro BS1的载频 F1获取 Macro BS1的 基本信息， 发起切换操作。
实施例 6
在本实施例中， 一个无线通信系统中同时存在 Macro BS1 , 使用的载 频为 Fl、 Femto BS2, 使用的载频为 F2、 Femto BS3, 使用的载频为 F3、 Femto BS4, 使用的载频为 F4, 终端 MS2的服务基站为 Femto BS2, 如图 7 所示。
在本实施例中， 基站在本基站邻区列表里描述的基站的载频的适当资 源块上发送辅助检测信令。 在本实施例中， 假设 Macro BS1的邻区列表中包含 Femto BS2、 Femto BS3、 Femto BS4; Femto BS2的邻区列表中包含 Macro BS1和 Femto BS3; Femto BS3的邻区列表中包含 Macro BS1和 Femto BS2; Femto BS4的邻区 列表中包含 Macro BS1； 则 Macro BS 1在 F2、 F3、 F4载频适当的资源块上 发送辅助检测信令， Femto BS2在 Fl、 F3载频适当的资源块上发送辅助检 测信令， Femto BS3在 Fl、 F2载频适当的资源块上发送辅助检测信令， Femto BS4在 F1载频适当的资源块上发送辅助检测信令。
本实施例中， 以 Femto BS2的载频 F2为例， Femto BS2通过相应信令 告知 Macro BS1、 Femto BS3在载频 F2上发送辅助检测信令的资源块的位 置信息， 如图 10所示， S12、 S32分别是 Macro BS1、 Femto BS3在载频 F2 上发送的辅助检测信令， S12、 S32占有相同的时隙 T2, 并且 S12、 S32分 别为预先确定的一组正交或准正交码子序列中的一个码子序列。
在 Macro BS1上其它基站发送辅助检测信令占用的时隙 T1、 在 Femto BS3上其它基站发送辅助检测信令占用的时隙 T3、 在 Femto BS4上其它基 站发送辅助检测信令占用的时隙 T4,其中， Tl、 Τ2、 Τ3和 Τ4可以相同或者 不同。
在本实施例中， Femto BS2通过相应信令告知 MS2扫描 F2载频上的时 隙 T2, 通过解码辅助检测信令， 评估 Macro BS1、 Femto BS3的信道质量 是否适合切换。假设本实施例中终端 MS2通过解码辅助检测信令 S12、 S32, 确定 Macro BS1为切换的目标基站。 则终端 MS2可以通过当前的服务基站 Femto BS2获取 Macro BS1的基本信息， 准备进行切换操作；或者直接扫描 Macro BS1的载频 F1获取 Macro BS1的基本信息， 发起切换操作。
实施例 7
在本实施例中， 一个无线通信系统中同时存在 Macro BS1 , 使用的载 频为 Fl、 Femto BS2, 使用的载频为 F2、 Femto BS 3, 使用的载频为 F3、 Femto BS4, 使用的载频为 F4, 终端 MSI的月良务基站为 Macro BS1 , 如图 3 所示。 Fc为一个公用的载频资源， Macro BS1、 Femto BS2、 Femto BS3和 Femto BS4都可以在 Fc上发送消息。
在本实施例中， Macro BS1、 Femto BS2、 Femto BS3和 Femto BS4在 载频 Fc的适当的资源块上发送辅助检测信令。
在本实施例中， 上层网元通过相应信令告知 Macro BS1、 Femto BS2、 Femto BS3和 Femto BS4在载频 Fc上发送辅助检测信令的资源块的位置信 息， 如图 11所示， Slc、 S2c、 S3c和 S4c分别是 Macro BSl、 Femto BS2、 Femto BS3、 Femto BS4在载频 Fc上发送的辅助检测信令， Slc、 S2c、 S3c 和 S4c分别是一组导频序列， Slc、 S2c、 S3c和 S4c占有相同的时隙 Tc, 并且 Slc、 S2c、 S3c和 S4c相互正交。
其中， 基站在不同公共载频上发送的辅助检测信令占用的时隙资源 Tc 可以相同或不同。
在本实施例中， Macro BS1通过相应信令告知 MS1扫描 Fc载频上的时 隙 Tc, 解码辅助检测信令， 根据导频信息进行信道估计， 评估 Femto BS2、 Femto BS3和 Femto BS4的信道质量是否适合切换。 假设本实施例中终端 MS1通过解码辅助检测信令 S2c、 S3c和 S4c, 确定 Femto BS2为切换的目 标基站。 则终端 MS 1可以通过当前的服务基站 Macro BS 1获取 Femto BS2 的基本信息， 准备进行切换操作； 或者直接扫描 Femto BS2的载频 F2获取 Femto BS2的基本信息， 发起切换操作。
实施例 8
在本实施例中， 一个无线通信系统中同时存在 Macro BS1 , 使用的载 频为 Fl、 Femto BS2, 使用的载频为 F2、 Femto BS3, 使用的载频为 F3、 Femto BS4, 使用的载频为 F4, 终端 MS1的月良务基站为 Macro BS1 , 如图 3 所示。 Fc为一个公用的载频资源， Macro BS1、 Femto BS2、 Femto BS3和 Femto BS4都可以在 Fc上发送消息。
在本实施例中， Macro BS1、 Femto BS2、 Femto BS3和 Femto BS4在 载频 Fc的适当的资源块上发送辅助检测信令。
在本实施例中， 上层网元通过相应信令告知 Macro BS1、 Femto BS2、 Femto BS3和 Femto BS4在载频 Fc上发送辅助检测信令的资源块的位置信 息如图 12所示， Slc、 S2c、 S3c和 S4c分别是 Macro BS1、 Femto BS2、 Femto BS3、 Femto BS4在载频 Fc上发送的辅助检测信令， Slc、 S2c、 S3c和 S4c 分别是一组导频序列， 并且 Slc、 S2c、 S3c和 S4c分别占有不同的时隙 Tl、 Τ2、 Τ3和 Τ4。
其中， 基站在不同公共载频上发送的辅助检测信令占用的时隙资源可 以相同或不同。
在本实施例中， Macro BS1通过相应信令告知 MS1扫描 Fc载频上的时 隙 T2、 Τ3和 Τ4, 解码辅助检测信令， 根据导频信息进行信道估计， 评估 Femto BS2、 Femto BS3和 Femto BS4的信道质量是否适合切换。 4叚设本实 施例中终端 MS1通过解码辅助切换信令 S2c、 S3c和 S4c, 确定 Femto BS2 为切换的目标基站。 则终端 MS1可以通过当前的服务基站 Macro BS1获取 Femto BS2的基本信息， 准备进行切换操作； 或者直接扫描 Femto BS2的载 频 F2获取 Femto BS2的基本信息， 发起切换操作。
实施例 9
在本实施例中， 一个无线通信系统中同时存在 Macro BS1 , 使用的载 频为 Fl、 Femto BS2, 使用的载频为 F2、 Femto BS3, 使用的载频为 F3、 Femto BS4, 使用的载频为 F4, 终端 MS1的月良务基站为 Macro BS1 , 如图 3 所示。 Fc为一个公用的载频资源， Macro BS1、 Femto BS2、 Femto BS3和 Femto BS4都可以在 Fc上发送信息。
在本实施例中， Macro BS1、 Femto BS2、 Femto BS3和 Femto BS4在 载频 Fc的适当的资源块上发送辅助检测信令。
在本实施例中， 上层网元通过相应信令告知 Macro BS1、 Femto BS2、 Femto BS3和 Femto BS4在载频 Fc上发送辅助检测信令的资源块的位置信 息， 如图 13所示， Slc、 S2c、 S3c和 S4c分别是 Macro BSl、 Femto BS2、 Femto BS3、 Femto BS4在载频 Fc上发送的辅助检测信令， Slc、 S2c、 S3c 和 S4c占有相同的时隙 Tc, 并且 Slc、 S2c、 S3c和 S4c分别为预先确定的 一组正交或准正交码子序列中的一个码子序列。
其中， 基站在不同公共载频上发送的辅助检测信令占用的时隙资源可 以相同或不同。
在本实施例中， Macro BS1通过相应信令告知 MS1扫描 Fc载频上的时 隙 Tc, 通过解码辅助检测信令， 评估 Femto BS2、 Femto BS3和 Femto BS4 的信道质量是否适合切换。 假设本实施例中终端 MS1通过解码辅助检测信 令 S2c、 S3c和 S4c, 确定 Femto BS2为切换的目标基站。 则终端 MS1可以 通过当前的服务基站 Macro BS1获取 Femto BS2的基本信息， 准备进行切 换操作； 或者直接扫描 Femto BS2的载频 F2获取 Femto BS2的基本信息， 发起切换操作。
实施例 10
在本实施例中， 一个无线通信系统中同时存在 Macro BS1 , 使用的载 频为 Fl、 Femto BS2, 使用的载频为 F2、 Femto BS3, 使用的载频为 F3、 Femto BS4, 使用的载频为 F4, 终端 MS1的月良务基站为 Macro BS1 , 如图 3 所示。 Fcl为一个公用的载频资源， Macro BS1、 Femto BS2可以在 Fcl上 发送消息； Fc2为另一个公用的载频资源， Femto BS3和 Femto BS4可以在 Fc2上发送消息。
在本实施例中， Macro BS1、 Femto BS2在载频 Fcl的适当的资源块上 发送辅助检测信令； Femto BS3和 Femto BS4在载频 Fc2的适当的资源块上 发送辅助检测信令。
在本实施例中， 上层网元通过相应信令告知 Macro BS1、 Femto BS2在 载频 Fcl上发送辅助检测信令的资源块的位置信息以及告知 Femto BS3、 Femto BS4在载频 Fc2上发送辅助检测信令的资源块的位置信息， 如图 14 所示， Slcl、 S2cl、 S3c2和 S4c2分别是 Macro BS1、 Femto BS2、 Femto BS3、 Femto BS4发送的辅助检测信令。 Slcl、 S2cl、 S3c2和 S4c2分别是一组导 频序列， Slcl、 S2cl占有相同的时隙 Tel ,并且 Slcl、 S2cl相互正交; S3c2 和 S4c2占有相同的时隙 Tc2, 并且 S3c2、 S3c2相互正交。
其中， 基站在不同公共载频上发送的辅助检测信令占用的时隙资源可 以相同或不同。
在本实施例中， Macro BS1通过相应信令告知 MS1分别扫描 Fcl载频 上的时隙 Tel和 Fc2载频上的时隙 Tc2, 解码辅助检测信令， 根据导频信息 进行信道估计， 评估 Femto BS2、 Femto BS3和 Femto BS4的信道质量是否 适合切换。 假设本实施例中终端 MS1 通过解码辅助检测信令 S2cl、 S3c2 和 S4c2 , 确定 Femto BS2为切换的目标基站。 则终端 MS 1可以通过当前的 服务基站 Macro BS1获取 Femto BS2的基本信息， 准备进行切换操作； 或 者直接扫描 Femto BS2的载频 F2获取 Femto BS2的基本信息，发起切换操 作。
实施例 11
在本实施例中， 一个无线通信系统中同时存在 Macro BS1 , 使用的载 频为 Fl、 Femto BS2, 使用的载频为 F2、 Femto BS3, 使用的载频为 F3、 Femto BS4, 使用的载频为 F4, 终端 MS1的月良务基站为 Macro BS1 , 如图 3 所示。 Fcl为一个公用的载频资源， Macro BS1、 Femto BS2可以在 Fcl上 发送消息； Fc2为另一个公用的载频资源， Femto BS3和 Femto BS4可以在 Fc2上发送消息。 在本实施例中， Macro BS1、 Femto BS2在载频 Fcl的适当的资源块上 发送辅助检测信令； Femto BS3和 Femto BS4在载频 Fc2的适当的资源块上 发送辅助检测信令。
在本实施例中， 上层网元通过相应信令告知 Macro BS1、 Femto BS2在 载频 Fcl上发送辅助检测信令的资源块的位置信息以及告知 Femto BS3、 Femto BS4在载频 Fc2上发送辅助检测信令的资源块的位置信息， 如图 15 所示， Slcl、 S2cl、 S3c2和 S4c2分别是 Macro BS1、 Femto BS2、 Femto BS3、 Femto BS4发送的辅助检测信令。 Slcl、 S2cl、 S3c2和 S4c2分别是一组导 频序列， Slcl、 S2cl分别占有不同的时隙 Tlcl和 T2cl; S3c2和 S4c2分别 占有不同的时隙 T3c2和 T4c2。
其中， 基站在不同公共载频上发送的辅助检测信令占用的时隙资源可 以相同或不同。
在本实施例中， Macro BS1通过相应信令告知 MS1分别扫描 Fcl载频 上的时隙 Tlcl、 T2cl 以及 Fc2载频上的时隙 T3c2、 T4c2, 解码辅助检测 信令， 根据导频信息进行信道估计， 评估 Femto BS2、 Femto BS 3和 Femto BS4的信道质量是否适合切换。 假设本实施例中终端 MS1通过解码辅助检 测信令 S2cl、 S3c2和 S4c2, 确定 Femto BS2为切换的目标基站。 则终端 MS1可以通过当前的服务基站 Macro BS1获取 Femto BS2的基本信息， 准 备进行切换操作； 或者直接扫描 Femto BS2的载频 F2获取 Femto BS2的基 本信息， 发起切换操作。
实施例 12
在本实施例中， 一个无线通信系统中同时存在 Macro BS1 , 使用的载 频为 Fl、 Femto BS2, 使用的载频为 F2、 Femto BS3, 使用的载频为 F3、 Femto BS4, 使用的载频为 F4, 终端 MS1的月良务基站为 Macro BS1 , 如图 3 所示。 Fcl为一个公用的载频资源， Macro BS1、 Femto BS2可以在 Fcl上 发送消息； Fc2为另一个公用的载频资源， Femto BS3和 Femto BS4可以在 Fc2上发送消息。
在本实施例中， Macro BS1、 Femto BS2在载频 Fcl的适当的资源块上 发送辅助检测信令； Femto BS3和 Femto BS4在载频 Fc2的适当的资源块上 发送辅助检测信令。
在本实施例中， 上层网元通过相应信令告知 Macro BS1、 Femto BS2在 载频 Fcl上发送辅助检测信令的资源块的位置信息以及告知 Femto BS3、 Femto BS4在载频 Fc2上发送辅助检测信令的资源块的位置信息， 如图 16 所示， Slcl、 S2cl、 S3c2和 S4c2分别是 Macro BS1、 Femto BS2、 Femto BS3、 Femto BS4发送的辅助检测信令。 Slcl、 S2cl、 S3c2和 S4c2分别为预先确 定的一组正交或准正交码子序列中的一个码子序列。 Slcl、 S2cl 占有相同 的时隙 Tel; S3c2和 S4c2占有相同的时隙 Tc2。
其中， 基站在不同公共载频上发送的辅助检测信令占用的时隙资源可 以相同或不同。
在本实施例中， Macro BS1通过相应信令告知 MS1分别扫描 Fcl载频 上的时隙 Tel以及 Fc2载频上的时隙 Tc2, 解码辅助检测信令， 评估 Femto BS2、 Femto BS3和 Femto BS4的信道质量是否适合切换。 假设本实施例中 终端 MS1通过解码辅助检测信令 S2cl、 S3c2和 S4c2, 确定 Femto BS2为 切换的目标基站。 则终端 MS1 可以通过当前的服务基站 Macro BS1获取 Femto BS2的基本信息， 准备进行切换操作； 或者直接扫描 Femto BS2的载 频 F2获取 Femto BS2的基本信息， 发起切换操作。
实施例 13
在本实施例中， 一个无线通信系统中同时存在 Macro BS1 , 使用的载 频为 Fl、 Femto BS2, 使用的载频为 F2、 Femto BS3, 使用的载频为 F3、 Femto BS4, 使用的载频为 F4, 终端 MS1的月良务基站为 Macro BS1 , 如图 3 所示。
在本实施例中， Macro BSl在 F2、 F3、 F4载频适当的资源块上发送辅 助检测信令， Femto BS2在 Fl、 F3、 F4载频适当的资源块上发送辅助检测 信令， Femto BS3在 Fl、 F2、 F4载频适当的资源块上发送辅助检测信令， Femto BS4在 Fl、 F2、 F3载频适当的资源块上发送辅助检测信令。
在本实施例中， 以 Macro BS1的载频 F1为例， 图 17为本实施例中辅 助检测信令发送与接收的具体流程图， 如图 17所示， 在本实施例中辅助检 测信令发送与接收方法主要包括：
步骤 701: Macro BS1通过 backhaul通知 Femto BS2、 Femto BS3和 Femto BS4在载频 F1上发送辅助检测信令的资源块的位置信息，如图 4所示， S21、 S31和 S41分别是 Femto BS2、 Femto BS3、 Femto BS4在载频 Fl上发送的 辅助检测信令， S21、 S31和 S41分别为一组导频序列， S21、 S31和 S41 占有相同的时隙 T1, 并且 S21、 S31和 S41相互正交。
在 Femto BS2上其它基站发送辅助检测信令占用的时隙 T2、 在 Femto BS3上其它基站发送辅助检测信令占用的时隙 T3、 在 Femto BS4上其它基 站发送辅助检测信令占用的时隙 T4,其中， Tl、 Τ2、 Τ3和 Τ4可以相同或者 不同。
步骤 703: Macro BS1通过广播信道发送相关信令告知本基站下终端 F1 载频上发送的辅助检测信令占用的时频资源块位置信息。
步骤 705: Femto BS2、 Femto BS3和 Femto BS4在载频 Fl上发送辅助 检测信令。
步骤 707: MS1扫描 F1载频上的时隙 T1 ,解码辅助检测信令 S21、 S31 和 S41 , 根据获得的导频信息进行信道估计， 评估 Femto BS2、 Femto BS3 和 Femto BS4的信道质量是否适合于切换。
步骤 709: 终端 MS1通过解码辅助检测信令 S21、 S31和 S41 , 确定 Femto BS2为切换的目标基站，并向当前服务基站 Macro BS1发送切换请求 信息。
步骤 711: 接收到切换请求信息后， Macro BS1将 Femto BS2的基本信 息发送给终端 MS1。
步骤 713: MS1根据接收到的 Femto BS2的基本信息发起切换操作。 实施例 14
在本实施例中， 一个无线通信系统中 Femto BS1 , 使用的载频为 F1、 Femto BS2, 使用的载频为 F2、 Femto BS3, 使用的载频为 F3、 Femto BS4, 使用的载频为 F4, 终端 MS1的服务基站为 Femto BS1 , 如图 18所示。
在本实施例中， Femto BSl在 F2、 F3、 F4载频适当的资源块上发送辅 助检测信令， Femto BS2在 Fl、 F3、 F4载频适当的资源块上发送辅助检测 信令， Femto BS3在 Fl、 F2、 F4载频适当的资源块上发送辅助检测信令， Femto BS4在 Fl、 F2、 F3载频适当的资源块上发送辅助检测信令。
本实施例中， 以 Femto BS1的载频 Fl为例， 图 17为本实施例中辅助 检测信令发送与接收的具体流程图， 如图 17所示， 在本实施例中辅助检测 信令发送与接收方法主要包括：
步骤 901 :上层网元通过相应信令通知 Femto BS2、 Femto BS3和 Femto BS4在载频 Fl上发送辅助检测信令的资源块的位置信息；
如图 4所示， S21、S31和 S41分别是 Femto BS2、 Femto BS3、 Femto BS4 在载频 Fl上发送的辅助检测信令， S21、 S31和 S41分别为一组导频序列， S21、 S31和 S41占有相同的时隙 T1, 并且 S21、 S31和 S41相互正交。
在 Femto BS2上其它基站发送辅助检测信令占用的时隙 T2、 在 Femto BS3上其它基站发送辅助检测信令占用的时隙 T3、 在 Femto BS4上其它基 站发送辅助检测信令占用的时隙 T4,其中， Tl、 Τ2、 Τ3和 Τ4可以相同或者 不同。 步骤 903: Femto BS1通过广播信道发送相关信令告知本基站下终端， F1载频上发送的辅助检测信令占用的时频资源块位置信息。
步骤 905: Femto BS2、 Femto BS3和 Femto BS4在载频 Fl上发送辅助 检测信令。
步骤 907: MS1扫描 F1载频上的时隙 T1 ,解码辅助检测信令 S21、 S31 和 S41;
步骤 909: MS1根据获得的导频信息进行信道估计， 评估 Femto BS2、 Femto BS3和 Femto BS4的信道质量是否适合于切换， 终端 MS1通过解码 辅助检测信令 S21、 S31和 S41 , 确定 Femto BS2为切换的目标基站， 并向 当前服务基站 Femto BS 1发送切换请求信息；
步骤 911: Femto BS1将 Femto BS2的基本信息发送给 MS1 ;
步骤 913: MS1根据接收到的 Femto BS2的基本信息发起切换操作。 实施例 15
在本实施例中，一个无线通信系统中同时存在 Macro BS1 ,其使用的载 频为 Fl、 Femto BS2, 其使用的载频为 F2、 Femto BS3, 其使用的载频为 F3、 Femto BS4, 其使用的载频为 F4, 终端 MS 1的服务基站为 Macro BS1 , 如图 3所示。
在该无线通信系统中， Macro BSl在 F2、 F3、 F4载频适当的资源块上 发送辅助检测信令， Femto BS2在 Fl、 F3、 F4载频适当的资源块上发送辅 助检测信令， Femto BS3在 Fl、 F2、 F4载频适当的资源块上发送辅助检测 信令， Femto BS4在 Fl、 F2、 F3载频适当的资源块上发送辅助检测信令。
在本实施例中， 以 Macro BS1的载频 F1为例， Macro BS1通过相应信 令告知 Femto BS2、 Femto BS3和 Femto BS4在载频 Fl上发送辅助检测信 令的资源块的位置信息， 如图 4所示， S21、 S31和 S41分别是 Femto BS2、 Femto BS3、 Femto BS4在载频 Fl上发送的辅助检测信令，并且占用不同的 时频资源块。 S21、 S31和 S41分别含有 Femto BS2、 Femto BS3、 Femto BS4 是否允许更多新终端接入的指示信息。 本实施例中以一个比特 "1" 表示相 应基站允许新终端接入； 以一个比特 "0"表示相应基站不允许新终端接入。 本实施例中假设 Femto BS2、 Femto BS3允许新终端接入， 则辅助检测信令 S21、 S31的相应比特位为 "1" ; 假设 Femto BS4不允许新终端接入， 则辅 助检测信令 S41的相应比特位为 "0" ;
在本实施例中， Macro BS1通过相应信令告知 MSI Femto BS2、 Femto BS3、 Femto BS4发送辅助检测信令的时频资源块的位置信息， 则终端 MS1 解码辅助检测信令， 确定 Femto BS2、 Femto BS3为可接入的目标基站。 则 终端 MS 1可以通过当前的服务基站 Macro BS 1获取 Femto BS2、 Femto BS3 的基本信息。
实施例 16
在本实施例中，一个无线通信系统中同时存在 Macro BS1 ,其使用的载 频为 Fl、 Femto BS2, 其使用的载频为 F2、 Femto BS3, 其使用的载频为 F3、 Femto BS4, 其使用的载频为 F4, 终端 MS 1的服务基站为 Macro BS1 , 如图 3所示。
在该无线通信系统中， Macro BSl在 F2、 F3、 F4载频适当的资源块上 发送辅助检测信令， Femto BS2在 Fl、 F3、 F4载频适当的资源块上发送辅 助检测信令， Femto BS3在 Fl、 F2、 F4载频适当的资源块上发送辅助检测 信令， Femto BS4在 Fl、 F2、 F3载频适当的资源块上发送辅助检测信令。
本实施例中， 以 Macro BS1的载频 F1为例， Macro BS1通过相应信令 告知 Femto BS2、 Femto BS3和 Femto BS4在载频 Fl上发送辅助检测信令 的资源块的位置信息， 如图 4所示， S21、 S31和 S41分别是 Femto BS2、 Femto BS3、 Femto BS4在载频 Fl上发送的辅助检测信令，并且占用不同的 时频资源块。 S21、 S31和 S41分别含有 Femto BS2、 Femto BS3、 Femto BS4 的索引号以及是否允许更多新终端接入的指示信息。 本实施例中 Femto BS2、 Femto BS3、 Femto BS4的索引号分别为 "01" "10" "11" , 并且以一 个比特 "1" 表示相应基站允许新终端接入； 以一个比特 "0" 表示相应基 站不允许新终端接入。 本实施例中假设 Femto BS2、 Femto BS 3允许新终端 接入， 则辅助检测信令 S21、 S31中相应比特位为 "1" ; 假设 Femto BS4不 允许新终端接入， 则辅助检测信令 S41的相应比特位为 "0" ; 即 S21、 S31 和 S41分别为 "01 1" "10 1" "11 0"。
在本实施例中， Macro BSl通过相应信令告知 MS1辅助检测信令发送 的时频资源块的位置信息， 则终端 MS1解码辅助检测信令， 确定基站索引 号为 "01" "10" 的目标基站为可接入基站。 则终端 MS1 可以通过当前的 服务基站 Macro BSl获取索引号为 "01" "10"的基站的基本信息，即 Femto BS2、 Femto BS3的基本信息。
实施例 17
在本实施例中，一个无线通信系统中同时存在 Macro BS1 ,其使用的载 频为 Fl、 Femto BS2, 其使用的载频为 F2、 Femto BS3, 其使用的载频为 F3、 Femto BS4, 其使用的载频为 F4, 终端 MS 1的服务基站为 Macro BS1 , 如图 3所示。
在该无线通信系统中， Macro BSl在 F2、 F3、 F4载频适当的资源块上 发送辅助检测信令， Femto BS2在 Fl、 F3、 F4载频适当的资源块上发送辅 助检测信令， Femto BS3在 Fl、 F2、 F4载频适当的资源块上发送辅助检测 信令， Femto BS4在 Fl、 F2、 F3载频适当的资源块上发送辅助检测信令。
本实施例中， 以 Macro BSl的载频 Fl为例， Macro BSl通过相应信令 告知 Femto BS2、 Femto BS3和 Femto BS4在载频 Fl上发送辅助检测信令 的资源块的位置信息， 如图 4所示， S21、 S31和 S41分别是 Femto BS2、 Femto BS3、 Femto BS4在载频 Fl上发送的辅助检测信令，并且占用不同的 时频资源块。 S21、 S31和 S41分别含有 Femto BS2、 Femto BS3、 Femto BS4 是否允许更多新终端接入的指示信息以及对于接入终端类型限制的指示信 息。 本实施例中以一个比特 "1" 表示相应基站允许新终端接入， 以一个比 特 "0" 表示相应基站不允许新终端接入。 假设 Femto BS2、 Femto BS3允 许新终端接入，则辅助检测信令 S21、 S31的相应比特位为 "1" ,假设 Femto BS4不允许新终端接入， 则辅助检测信令 S41 的相应比特位为 "0"。 本实 施例中以比特 "11" 表示相应基站对接入终端有限制条件， 以比特 "00" 表示相应基站对接入终端没有限制条件， 假设 Femto BS2、 Femto BS4对接 入终端没有限制条件， 则辅助检测信令 S21、 S41 的相应比特位为 "00" ; 假设 Femto BS3对接入终端有限制条件， 则辅助检测信令 S31的相应比特 位为 "11" 并且附带允许接入的终端组标识为 "0101"。
在本实施例中， Macro BS1通过相应信令告知 MSI Femto BS2、 Femto BS3、 Femto BS4发送辅助检测信令的时频资源块的位置信息， 则终端 MS1 解码辅助检测信令，首先确定 Femto BS2、 Femto BS3为可接入的目标基站， 然后确定 Femto BS2对于接入终端没有限制条件， 而 Femto BS4对于接入 终端有限制条件且为终端组标识必须是 "0101" 的终端才能接入。 假设终 端 MS1的组标识为 "0101" , 则 MS1可以通过当前的服务基站 Macro BS1 获取 Femto BS2、 Femto BS3 的基本信息； 假设终端 MS1 的组标识不为 "0101" , 则 MS1通过当前的服务基站 Macro BS1获取 Femto BS2的基本 信息。
实施例 18
在本实施例中，一个无线通信系统中同时存在 Macro BS1 ,其使用的载 频为 Fl、 Femto BS2, 其使用的载频为 F2、 Femto BS3, 其使用的载频为 F3、 Femto BS4, 其使用的载频为 F4, 终端 MS 1的服务基站为 Macro BS1 , 如图 3所示。 在该无线通信系统中， Macro BSl在 F2、 F3、 F4载频适当的资源块上 发送辅助检测信令， Femto BS2在 Fl、 F3、 F4载频适当的资源块上发送辅 助检测信令， Femto BS3在 Fl、 F2、 F4载频适当的资源块上发送辅助检测 信令， Femto BS4在 Fl、 F2、 F3载频适当的资源块上发送辅助检测信令。
本实施例中， 以 Macro BS1的载频 F1为例， Macro BS1通过相应信令 告知 Femto BS2、 Femto BS3和 Femto BS4在载频 Fl上发送辅助检测信令 的资源块的位置信息， 如图 6所示， S21、 S31和 S41分别是 Femto BS2、 Femto BS3、 Femto BS4在载频 Fl上发送的辅助检测信令，并且占用相同的 时频资源块。 S21、 S31和 S41分另1 J含有 Femto BS2、 Femto BS3、 Femto BS4 是否允许更多新终端接入的指示信息以及对于接入终端类型限制的指示信 息。 本实施例中以一个比特 "1" 表示相应基站允许新终端接入， 以一个比 特 "0" 表示相应基站不允许新终端接入。 假设 Femto BS2、 Femto BS3允 许新终端接入，则辅助检测信令 S21、 S31的相应比特位为 "1" ,假设 Femto BS4不允许新终端接入， 则辅助检测信令 S41 的相应比特位为 "0"。 本实 施例中以比特 "11"表示相应基站对接入终端有限制条件， 以比特 "00" 表 示相应基站对接入终端没有限制条件， 假设 Femto BS2、 Femto BS4对接入 终端没有限制条件， 则辅助检测信令 S21、 S41 的相应比特位为 "00" ; 假 设 Femto BS3对接入终端有限制条件， 则辅助检测信令 S31的相应比特位 为 "11" 并且附带允许接入的终端组标识为 "0101"。
Femto BS2、 Femto BS3、 Femto BS4分别采用一组正交码字序列集合中 不同的码字序列将 S21、 S31和 S41扩频后在 F1的载频上发送，并且 Macro BS1已知 Femto BS2、 Femto BS3、 Femto BS4采用的码字序列。
在本实施例中， Macro BS1通过相应信令告知 MSI Femto BS2、 Femto BS3、 Femto BS4发送辅助检测信令的时频资源块的位置信息及采用的码字 序列， 则终端 MS 1解码辅助检测信令， 首先确定 Femto BS2、 Femto BS3 为可接入的目标基站， 然后确定 Femto BS2对于接入终端没有限制条件， 而 Femto BS4对于接入终端有限制条件且为终端组标识必须是 "0101" 的 终端才能接入。 假设终端 MS1的组标识为 "0101" , 则 MS1可以通过当前 的服务基站 Macro BS1获取 Femto BS2、 Femto BS3的基本信息； 假设终端 MS1的组标识不为 "0101" , 则 MS1通过当前的服务基站 Macro BS1获取 Femto BS2的基本信息。
实施例 19
在本实施例中，一个无线通信系统中同时存在 Macro BS1 ,其使用的载 频为 Fl、 Femto BS2, 其使用的载频为 F2、 Femto BS3, 其使用的载频为 F3、 Femto BS4, 其使用的载频为 F4, 终端 MS 1的服务基站为 Macro BS1 , 如图 3所示。
在该无线通信系统中， Macro BSl在 F2、 F3、 F4载频适当的资源块上 发送辅助检测信令， Femto BS2在 Fl、 F3、 F4载频适当的资源块上发送辅 助检测信令， Femto BS3在 Fl、 F2、 F4载频适当的资源块上发送辅助检测 信令， Femto BS4在 Fl、 F2、 F3载频适当的资源块上发送辅助检测信令。
本实施例中， 以 Macro BS1的载频 F1为例， Macro BS1通过相应信令 告知 Femto BS2、 Femto BS3和 Femto BS4在载频 Fl上发送辅助检测信令 的资源块的位置信息， S21、S31和 S41分别是 Femto BS2、 Femto BS3、 Femto BS4在载频 Fl上发送的辅助检测信令， 其中， S21、 S31占用相同的时频资 源块， S41占用与 S21、 S31不同的时频资源块。 S21、 S31和 S41分别含有 Femto BS2、 Femto BS3、 Femto BS4是否允许更多新终端接入的指示信息以 及对于接入终端类型限制的指示信息。 本实施例中以一个比特 "1" 表示相 应基站允许新终端接入， 以一个比特 "0"表示相应基站不允许新终端接入。 假设 Femto BS2、 Femto BS3允许新终端接入， 则辅助检测信令 S21、 S31 的相应比特位为 "1" , 假设 Femto BS4不允许新终端接入， 则辅助检测信 令 S41 的相应比特位为 "0"。 本实施例中以比特 "11" 表示相应基站对接 入终端有限制条件， 以比特 "00" 表示相应基站对接入终端没有限制条件， 假设 Femto BS2、 Femto BS4对接入终端没有限制条件， 则辅助检测信令 S21、 S41的相应比特位为 "00" ; 假设 Femto BS3对接入终端有限制条件， 则辅助检测信令 S31 的相应比特位为 "11" 并且附带允许接入的终端组标 识为 "0101"。
Femto BS2、 Femto BS3分别采用一组正交码字序列集合中不同的码字 序列将 S21、S3扩频后在 F1的载频上发送，并且 Macro BS1已知 Femto BS2、 Femto BS3采用的码字序列。
在本实施例中， Macro BS1通过相应信令告知 MSI Femto BS2、 Femto
BS3、 Femto BS4发送辅助检测信令的时频资源块的位置信息及 Femto BS2、 Femto BS3 采用的码字序列， 则终端 MS1 解码辅助检测信令， 首先确定 Femto BS2、 Femto BS3为可接入的目标基站， 然后确定 Femto BS2对于接 入终端没有限制条件， 而 Femto BS4对于接入终端有限制条件且为终端组 标识必须是 "0101" 的终端才能接入。 H殳终端 MS1的组标识为 "0101" , 则 MS1可以通过当前的服务基站 Macro BS1获取 Femto BS2、 Femto BS3 的基本信息； 假设终端 MSI的组标识不为 "0101" , 则 MS1通过当前的服 务基站 Macro BS1获取 Femto BS2的基本信息。
实施例 20
在本实施例中，一个无线通信系统中同时存在 Macro BS1 ,其使用的载 频为 Fl、 Femto BS2, 其使用的载频为 F2、 Femto BS3, 其使用的载频为 F3、 Femto BS4, 其使用的载频为 F4, 终端 MS 1的服务基站为 Macro BS1 , 如图 3所示。 Fc为一个公用的载频资源， Macro BS1、 Femto BS2、 Femto BS3 和 Femto BS4都可以在 Fc上发送消息。
在本实施例中， Macro BS1、 Femto BS2、 Femto BS3和 Femto BS4在 载频 Fc的适当的资源块上发送辅助检测信令。
本实施例中，上层网元通过相应信令告知 Macro BS1、 Femto BS2、 Femto BS3和 Femto BS4在载频 Fc上发送辅助检测信令的资源块的位置信息， 如 图 11所示， Slc、 S2c、 S3c和 S4c分别是 Macro BS1、 Femto BS2、 Femto BS3、 Femto BS4在载频 Fc上发送的辅助检测信令，并且占用不同的时频资源块。 Slc、 S2c、 S3c和 S4c分别含有 Macro BSl、 Femto BS2、 Femto BS3、 Femto BS4是否允许更多新终端接入的指示信息。 本实施例中以一个比特 "1" 表 示相应基站允许新终端接入； 以一个比特 "0" 表示相应基站不允许新终 端接入。 本实施例中假设 Macro BS1、 Femto BS2、 Femto BS3允许新终端 接入，则辅助检测信令 Slc、 S2c、 S3c的相应比特位为 "1" ;假设 Femto BS4 不允许新终端接入， 则辅助检测信令 S4c的相应比特位为 "0" ;
在本实施例中， Macro BS1通过相应信令告知 MSI Femto BS2、 Femto BS3、 Femto BS4发送辅助检测信令的时频资源块的位置信息， 则终端 MS1 解码辅助检测信令， 确定 Femto BS2、 Femto BS3为可接入的目标基站。 则 终端 MS 1可以通过当前的服务基站 Macro BS 1获取 Femto BS2、 Femto BS3 的基本信息。
实施例 21
在本实施例中，一个无线通信系统中同时存在 Macro BS1 ,其使用的载 频为 Fl、 Femto BS2, 其使用的载频为 F2、 Femto BS3, 其使用的载频为 F3、 Femto BS4, 其使用的载频为 F4, 终端 MS 1的服务基站为 Macro BS1 , 如图 3所示。 Fc为一个公用的载频资源， Macro BS1、 Femto BS2、 Femto BS3 和 Femto BS4都可以在 Fc上发送消息。
在本实施例中， Macro BS1、 Femto BS2、 Femto BS3和 Femto BS4在 载频 Fc的适当的资源块上发送辅助检测信令。
本实施例中，上层网元通过相应信令告知 Macro BS1、 Femto BS2、 Femto BS3和 Femto BS4在载频 Fc上发送辅助检测信令的资源块的位置信息， 如 图 11所示， Slc、 S2c、 S3c和 S4c分别是 Macro BSl , Femto BS2、 Femto BS3、 Femto BS4在载频 Fc上发送的辅助检测信令，并且占用不同的时频资源块。 Slc、 S2c、 S3c和 S4c分别含有 Macro BSl、 Femto BS2、 Femto BS3、 Femto BS4的索引号以及是否允许更多新终端接入的指示信息。本实施例中 Macro BS1、 Femto BS2、 Femto BS3、 Femto BS4的索引号分别为 "00" "01" "10" "11" , 并且以一个比特 "1" 表示相应基站允许新终端接入； 以一个比特 "0" 表示相应基站不允许新终端接入。本实施例中假设 Macro BSl、 Femto BS2、 Femto BS3允许新终端接入， 则辅助检测信令 Slc、 S2c、 S3c中相应 比特位为 "1" ; 假设 Femto BS4不允许新终端接入， 则辅助检测信令 S4c 的相应比特位为 "0" ; 即 Slc、 S2c、 S3c和 S4c分别为 "00 1" "01 1" "10 1" "11 0"。
在本实施例中， Macro BSl通过相应信令告知 MS1辅助检测信令发送 的时频资源块的位置信息， 则终端 MS1解码辅助检测信令， 确定基站索引 号为 "01" "10" 的目标基站为可接入基站。 则终端 MS1 可以通过当前的 服务基站 Macro BSl获取索引号为 "01" "10"的基站的基本信息，即 Femto BS2、 Femto BS3的基本信息。
实施例 22
在本实施例中，一个无线通信系统中同时存在 Macro BS1 ,其使用的载 频为 Fl、 Femto BS2, 其使用的载频为 F2、 Femto BS3, 其使用的载频为 F3、 Femto BS4, 其使用的载频为 F4, 终端 MS 1的服务基站为 Macro BS1 , 如图 3所示。 Fc为一个公用的载频资源， Macro BSl , Femto BS2、 Femto BS3 和 Femto BS4都可以在 Fc上发送消息。
在本实施例中， Macro BS1、 Femto BS2、 Femto BS3和 Femto BS4在 载频 FC的适当的资源块上发送辅助检测信令。 本实施例中，上层网元通过相应信令告知 Macro BS1、 Femto BS2、 Femto BS3和 Femto BS4在载频 Fc上发送辅助检测信令的资源块的位置信息， 如 图 11所示， Slc、 S2c、 S3c和 S4c分别是 Macro BS1、 Femto BS2、 Femto BS3、 Femto BS4在载频 Fc上发送的辅助检测信令，并且占用不同的时频资源块。 Slc、 S2c、 S3c和 S4c分别含有 Macro BSl、 Femto BS2、 Femto BS3、 Femto BS4 是否允许更多新终端接入的指示信息以及对于接入终端类型限制的指 示信息。 本实施例中以一个比特 "1" 表示相应基站允许新终端接入， 以一 个比特 "0" 表示相应基站不允许新终端接入。假设 Macro BS1、 Femto BS2、 Femto BS3允许新终端接入， 则辅助检测信令 Slc、 S2c、 S3c的相应比特位 为 " 1" , 假设 Femto BS4不允许新终端接入， 则辅助检测信令 S4c的相应 比特位为 "0"。 本实施例中以比特 "11" 表示相应基站对接入终端有限制 条件， 以比特 "00" 表示相应基站对接入终端没有限制条件， 假设 Macro BS1、 Femto BS2、 Femto BS4对接入终端没有限制条件， 则辅助检测信令 Slc、 S2c、 S4c的相应比特位为 "00" ; 假设 Femto BS3对接入终端有限制 条件， 则辅助检测信令 S3c 的相应比特位为 "11" 并且附带允许接入的终 端组标识为 "0101"。
在本实施例中， Macro BS1通过相应信令告知 MSI Femto BS2、 Femto BS3、 Femto BS4发送辅助检测信令的时频资源块的位置信息， 则终端 MS1 解码辅助检测信令，首先确定 Femto BS2、 Femto BS3为可接入的目标基站， 然后确定 Femto BS2对于接入终端没有限制条件， 而 Femto BS4对于接入 终端有限制条件且为终端组标识必须是 "0101" 的终端才能接入。 假设终 端 MS1的组标识为 "0101" , 则 MS1可以通过当前的服务基站 Macro BS1 获取 Femto BS2、 Femto BS3 的基本信息； 假设终端 MS1 的组标识不为 "0101" , 则 MS1通过当前的服务基站 Macro BS1获取 Femto BS2的基本 信息。 实施例 23
在本实施例中，一个无线通信系统中同时存在 Macro BS1 ,其使用的载 频为 Fl、 Femto BS2, 其使用的载频为 F2、 Femto BS3, 其使用的载频为 F3、 Femto BS4, 其使用的载频为 F4, 终端 MS 1的服务基站为 Macro BS1 , 如图 3所示。 Fc为一个公用的载频资源， Macro BS1、 Femto BS2、 Femto BS3 和 Femto BS4都可以在 Fc上发送消息。
在本实施例中， Macro BS1、 Femto BS2、 Femto BS3和 Femto BS4在 载频 Fc的适当的资源块上发送辅助检测信令。
本实施例中，上层网元通过相应信令告知 Macro BS1、 Femto BS2、 Femto BS3和 Femto BS4在载频 Fc上发送辅助检测信令的资源块的位置信息， 如 图 11所示， Slc、 S2c、 S3c和 S4c分别是 Macro BS1、 Femto BS2、 Femto BS3、 Femto BS4在载频 Fc上发送的辅助检测信令，并且占用相同的时频资源块。 Slc、 S2c、 S3c和 S4c分别含有 Macro BSl、 Femto BS2、 Femto BS3、 Femto BS4 是否允许更多新终端接入的指示信息以及对于接入终端类型限制的指 示信息。 本实施例中以一个比特 "1" 表示相应基站允许新终端接入， 以一 个比特 "0" 表示相应基站不允许新终端接入。假设 Macro BS1、 Femto BS2、 Femto BS3允许新终端接入， 则辅助检测信令 Slc、 S2c、 S3c的相应比特位 为 "1" , 假设 Femto BS4不允许新终端接入， 则辅助检测信令 S4c的相应 比特位为 "0"。 本实施例中以比特 "11" 表示相应基站对接入终端有限制 条件， 以比特 "00" 表示相应基站对接入终端没有限制条件， 假设 Macro BS1、 Femto BS2、 Femto BS4对接入终端没有限制条件， 则辅助检测信令 Slc、 S2c、 S4c的相应比特位为 "00" ; 假设 Femto BS3对接入终端有限制 条件， 则辅助检测信令 S3c 的相应比特位为 "11" 并且附带允许接入的终 端组标识为 "0101"。
Macro BS1 , Femto BS2、 Femto BS3、 Femto BS4分别采用一组已知的 正交码字序列集合中不同的码字序列将 Slc、 S2c、 S3c和 S4c扩频后在 Fc 的载频上发送。
在本实施例中， Macro BS1通过相应信令告知 MSI Femto BS2、 Femto BS3、 Femto BS4发送辅助检测信令的时频资源块的位置信息及采用的码字 序列， 则终端 MS 1解码辅助检测信令， 首先确定 Femto BS2、 Femto BS3 为可接入的目标基站， 然后确定 Femto BS2对于接入终端没有限制条件， 而 Femto BS4对于接入终端有限制条件且为终端组标识必须是 "0101" 的 终端才能接入。 假设终端 MS1的组标识为 "0101" , 则 MS1可以通过当前 的服务基站 Macro BS1获取 Femto BS2、 Femto BS3的基本信息； 假设终端 MS1的组标识不为 "0101" , 则 MS1通过当前的服务基站 Macro BS1获取 Femto BS2的基本信息。
实施例 24
在本实施例中，一个无线通信系统中同时存在 Macro BS1 ,其使用的载 频为 Fl、 Femto BS2, 其使用的载频为 F2、 Femto BS3, 其使用的载频为 F3、 Femto BS4, 其使用的载频为 F4, 终端 MS 1的服务基站为 Macro BS1 , 如图 3所示。 Fc为一个公用的载频资源， Macro BS1、 Femto BS2、 Femto BS3 和 Femto BS4都可以在 Fc上发送消息。
在本实施例中， Macro BS1、 Femto BS2、 Femto BS3和 Femto BS4在 载频 Fc的适当的资源块上发送辅助检测信令。
本实施例中，上层网元通过相应信令告知 Macro BS1、 Femto BS2、 Femto
BS3和 Femto BS4在载频 Fc上发送辅助检测信令的资源块的位置信息， Slc、 S2c、 S3c和 S4c分别是 Macro BS1、 Femto BS2、 Femto BS3、 Femto BS4 在载频 Fc上发送的辅助检测信令， 其中， Slc、 S2c、 S3c占用相同的时频 资源块， S4c占用与 Slc、 S2c、 S3c不同的时频资源块。 Slc、 S2c、 S3c和 S4c分别含有 Macro BSl、 Femto BS2、 Femto BS3、 Femto BS4是否允许更 多新终端接入的指示信息以及对于接入终端类型限制的指示信息。 本实施 例中以一个比特 "1" 表示相应基站允许新终端接入， 以一个比特 "0" 表 示相应基站不允许新终端接入。 假设 Macro BS1、 Femto BS2、 Femto BS3 允许新终端接入， 则辅助检测信令 Slc、 S2c、 S3c 的相应比特位为 "1" , 假设 Femto BS4不允许新终端接入， 则辅助检测信令 S4c的相应比特位为 "0"。 本实施例中以比特 "11" 表示相应基站对接入终端有限制条件， 以 比特 "00" 表示相应基站对接入终端没有限制条件，假设 Macro BS 1、 Femto BS2、 Femto BS4对接入终端没有限制条件，则辅助检测信令 Slc、 S2c、 S4c 的相应比特位为 "00" ; 假设 Femto BS3对接入终端有限制条件， 则辅助检 测信令 S3c的相应比特位为" 11"并且附带允许接入的终端组标识为 "0101"。
Macro BS1、 Femto BS2、 Femto BS3分别采用一组已知正交码字序列集 合中不同的码字序列将 Slc、 S2c、 S3c扩频后在 Fc的载频上发送。
在本实施例中， Macro BS1通过相应信令告知 MSI Femto BS2、 Femto BS3、 Femto BS4发送辅助检测信令的时频资源块的位置信息及 Femto BS2、 Femto BS3 采用的码字序列， 则终端 MS1 解码辅助检测信令， 首先确定 Femto BS2、 Femto BS3为可接入的目标基站， 然后确定 Femto BS2对于接 入终端没有限制条件， 而 Femto BS4对于接入终端有限制条件且为终端组 标识必须是 "0101" 的终端才能接入。 H殳终端 MS1的组标识为 "0101" , 则 MS1可以通过当前的服务基站 Macro BS1获取 Femto BS2、 Femto BS3 的基本信息； 假设终端 MSI的组标识不为 "0101" , 则 MS1通过当前的服 务基站 Macro BS1获取 Femto BS2的基本信息。
如上所述， 借助本发明实施例提供的术方案， 通过无线通信网络中的 各个基站在其它基站的工作载频或公共载频上发送辅助检测信令，使得 MS 只需要搜索一个载频， 便可得到每个基站发送的辅助检测信令， 从而实现 对每个基站的信道估计， 并根据信道估计结果进行切换， 解决了现有技术 中在切换时存在的信令开销较大以及 MS搜索的复杂度较高的问题， 节约 了信令开销， 降低了 MS搜索的复杂度， 有利于节电。
以上所述仅为本发明的优选实施例而已， 并不用于限制本发明， 对于 本领域的技术人员来说， 本发明可以有各种更改和变化。 凡在本发明的精 神和原则之内， 所作的任何修改、 等同替换、 改进等， 均应包含在本发明 的保护范围之内。

Claims

权利要求书
1.一种辅助检测信令发送方法， 其特征在于， 基站组内的每个基站均 分别确定自身为第一基站， 该方法包括：
针对所述基站组内的第一基站而言， 该基站组内除该第一基站之外的 其他基站分别在该第一基站的载频上发送辅助检测信令。
2.根据权利要求 1 所述的方法， 其特征在于， 所述基站组包括预定范 围内全部或部分基站。
3.根据权利要求 2所述的方法， 其特征在于， 所述预定范围的基站包 括：
一个或多个基站以及所述一个或多个基站覆盖范围内的家庭基站、 和 / 或小基站、 和 /或微基站； 或者，
工作在全部或部分可用载频资源上的多个基站， 包括家庭基站、 小基 站、 微基站或宏基站。
4.根据权利要求 1 所述的方法， 其特征在于， 所述载频包括： 所述第 一基站工作的一个或多个载频。
5.根据权利要求 1至 4中任一项所述的方法， 其特征在于， 发送所述 辅助检测信令的时频资源的位置， 通过以下任一方式确定：
由标准缺省配置；
由所述第一基站确定；
由所述第一基站与所述其它基站协商确定；
由所述基站组中的基站的上层网元确定；
由所述上层网元与所述第一基站协商确定；
由所述上层网元、 所述第一基站和所述其它基站共同协商确定。
6.根据权利要求 5所述的方法， 其特征在于， 所述上层网元包括以下 之一： 基站控制器、 接入服务网、 连接服务网、 核心网网关。
7.根据权利要求 5所述的方法， 其特征在于， 在发送所述辅助检测信 令之后， 该方法还包括：
所述第一基站以预定方式向终端发送所述时频资源的位置信息， 其中， 所述预定方式包括以下之一： 单播、 组播或广播。
8.根据权利要求 7所述的方法， 其特征在于， 在所述第一基站向所述 终端发送所述位置信息之前， 所述方法还包括：
所述上层网元向所述第一基站发送所述位置信息。
9.根据权利要求 5所述的方法， 其特征在于， 所述时频资源位于下行 子帧内， 或者位于上行子帧和下行子帧的转换间隔内。
10. 根据权利要求 1至 4中任一项所述的方法， 其特征在于， 所述辅 助检测信令以与终端约定的信令格式发送， 且所述辅助检测信令携带的内 容为与所述终端约定的内容。
11. 根据权利要求 1至 4中任一项所述的方法， 其特征在于， 所述其 它基站中的一个基站发送的所述辅助检测信令携带的内容包括以下之一或 其任意组合： 该基站的导频序列、 该基站的同步信道、 该基站的类型、 该 基站的索引号、 该基站对终端的接入限制条件、 该基站是否能够提供服务 的指示信息、 该基站是否允许更多终端接入的指示信息。
12. 根据权利要求 11所述的方法， 其特征在于， 所述限制条件包括： 所述基站允许接入的终端的类型， 和 /或允许接入的终端标识， 和 /或允许接 入的终端组标识。
13. 根据权利要求 11 所述的方法， 其特征在于， 所述其它基站在所 述第一基站的所述载频上发送所述辅助检测信令所占用的时频资源全部相 同或部分相同或完全不同。
14. 根据权利要求 13所述的方法， 其特征在于， 所述其它基站在所 述第一基站的所述载频上发送所述辅助检测信令所占用的时频资源相同； 且每个基站发送的辅助检测信令为相互正交或准正交的码字序列。
15. 根据权利要求 13所述的方法， 其特征在于， 所述其它基站在所 述第一基站的所述载频上发送所述辅助检测信令所占用的时频资源块相 同； 且每个基站发送的辅助检测信令为以预定序列作为扩频码对预设信息 进行扩频后生成的信令， 其中， 所述预定序列为相互正交或准正交的码字 序列。
16. 根据权利要求 1至 4中任一项所述的方法， 其特征在于， 在发送 所述辅助检测信令之后， 所述方法还包括：
终端接收所述其它基站发送的全部或部分辅助检测信令。
17. 根据权利要求 16所述的方法， 其特征在于， 在所述终端接收到 所述全部或部分辅助检测信令之后， 所述方法还包括：
所述终端根据接收到的所述全部或部分辅助检测信令确定切换的目标 基站。
18. 根据权利要求 16所述的方法， 其特征在于， 在所述终端接收到 所述全部或部分辅助检测信令之后， 所述方法还包括：
所述终端根据接收到的所述全部或部分辅助检测信令， 确定需要获取 信息的目标基站；
所述终端向当前的服务基站发送请求， 请求所述目标基站的相关信息。
19. 一种辅助检测信令发送方法， 其特征在于， 包括：
对于基站组内的基站， 所述基站在公共载频上发送辅助检测信令。
20. 根据权利要求 19所述的方法， 其特征在于， 所述基站组包括预 定范围内全部或部分基站。
21. 根据权利要求 20所述的方法， 其特征在于， 所述预定范围的所 述基站包括：
一个或多个基站以及所述基站覆盖范围内的家庭基站、 和 /或小基站、 和 /或微基站； 或者，
工作在全部或部分可用载频资源上的多个基站， 包括家庭基站、 小基 站、 微基站或宏基站。
22. 根据权利要求 19所述的方法， 其特征在于， 所述公共载频包括： 所述基站组内基站能够发送信令的一个或多个载频。
23. 根据权利要求 19至 22中任一项所述的方法， 其特征在于， 基站 组内的基站分别发送所述辅助检测信令的时频资源的位置信息通过以下任 一方式确定：
由标准缺省配置；
由发送所述辅助检测信令的基站确定；
由所述基站组内的基站的上层网元确定；
由所述上层网元与发送所述辅助检测信令的基站协商确定。
24. 根据权利要求 23所述的方法， 其特征在于， 所述上层网元包括 以下之一： 基站控制器、 接入服务网、 连接服务网、 核心网网关。
25. 根据权利要求 23所述的方法， 其特征在于， 在所述基站发送所 述辅助检测信令之后， 所述方法还包括：
所述基站以预定方式发送所述公共载频的信息， 其中， 所述预定方式 包括以下之一： 单播、 组播或广播。
26. 根据权利要求 25所述的方法， 其特征在于， 在所述基站发送所 述公共载频的信息之前， 所述方法还包括：
所述上层网元向所述基站发送所述公共载频的信息。
27. 根据权利要求 23所述的方法， 其特征在于， 所述时频资源位于 下行子帧内， 或者位于上行子帧和下行子帧的转换间隔内。
28. 根据权利要求 19至 22中任一项中所述的方法， 其特征在于， 所 述辅助检测信令以与终端约定的信令格式发送， 且所述辅助检测信令携带 的内容为与所述终端约定的内容。
29. 根据权利要求 19至 22中任一项中所述的方法， 其特征在于， 所 述辅助检测信令携带的内容包括以下之一或其任意组合：
所述基站的导频序列；
所述基站的同步序列；
所述基站的类型；
所述基站的索引号；
所述基站对终端的接入限制条件；
所述基站是否能够提供服务的指示信息；
所述基站是否允许更多终端接入的指示信息。
30. 根据权利要求 29所述的方法， 其特征在于， 所述限制条件包括： 所述基站允许接入的终端的类型， 和 /或允许接入的终端标识， 和 /或允许接 入的终端组标识。
31. 根据权利要求 29所述的方法， 其特征在于， 所述基站组内的基 站在同一公共载频上发送辅助检测信令占用的时频资源完全相同或部分相 同或完全不同。
32. 根据权利要求 31所述的方法， 其特征在于， 所述基站组内的基 站在同一公共载频上发送所述辅助检测信令占用的时频资源相同， 且每个 基站发送的辅助检测信令为相互正交或准正交的码字序列。
33. 根据权利要求 31所述的方法， 其特征在于， 所述基站组内的基 站在同一公共载频上发送辅助检测信令占用的时频资源相同， 且每个基站 发送的辅助检测信令为以预定序列作为扩频码对预设的信息进行扩频后生 成的信令， 其中， 所述预定序列为相互正交或准正交的码字序列。
34. 根据权利要求 19至 22中任一项中所述的方法， 其特征在于， 在 发送所述辅助检测信令之后， 所述方法还包括： 基站组下的终端在所述公共载频上接收辅助检测信令。
35. 根据权利要求 34所述的方法， 其特征在于， 所述终端在所述公 共载频上接收到辅助检测信令之后， 所述方法还包括：
所述终端根据接收到的所述辅助检测信令， 确定切换的目标基站。
36. 根据权利要求 34所述的方法， 其特征在于， 所述终端在所述公 共载频上接收到辅助检测信令之后， 所述方法还包括：
所述终端根据接收到的所述辅助检测信令， 确定需要获取信息的目标 基站；
所述终端向当前的服务基站发送请求， 请求所述目标基站的相关信息。
PCT/CN2009/075998 2009-01-07 2009-12-24 辅助检测信令发送方法 Ceased WO2010078806A1 (zh)

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