WO2007045164A1 - Procede d’identification de cellules de co-frequences, procede de combinaison des services et terminal utilisateur correspondant - Google Patents

Procede d’identification de cellules de co-frequences, procede de combinaison des services et terminal utilisateur correspondant Download PDF

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Publication number
WO2007045164A1
WO2007045164A1 PCT/CN2006/002731 CN2006002731W WO2007045164A1 WO 2007045164 A1 WO2007045164 A1 WO 2007045164A1 CN 2006002731 W CN2006002731 W CN 2006002731W WO 2007045164 A1 WO2007045164 A1 WO 2007045164A1
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WIPO (PCT)
Prior art keywords
frequency
same
cell
user terminal
broadcast multicast
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PCT/CN2006/002731
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English (en)
French (fr)
Inventor
Liyan Yin
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Huawei Technologies Co., Ltd.
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Publication date
Priority claimed from CN200510109066A external-priority patent/CN1953598B/zh
Priority claimed from CNB2005101090650A external-priority patent/CN100415053C/zh
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Priority to EP06804950A priority Critical patent/EP1950986A4/en
Publication of WO2007045164A1 publication Critical patent/WO2007045164A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/30Resource management for broadcast services

Definitions

  • the present invention relates to a cell identification technology in a third generation mobile communication system (3G, The 3rd Generation), and in particular, to a method for identifying an intra-frequency cell, a service merging method, and a user terminal thereof.
  • 3G Third generation mobile communication system
  • Background technique
  • the Universal Mobile Telecommunications System is a third-generation mobile communication system using WCDMA air interface technology, mainly developed in the CDMA/GSM Global Standards Organization 3GPP.
  • the user terminal can be classified into an idle (Idle) mode and an RRC connected (Connected) mode: where the terrestrial wireless is not common with the UMTS.
  • the access terminal UTRA, Universal Terrestrial Radio Access Network
  • the user terminal in this mode can only be distinguished by the non-access stratum (NAS, Non-Access Stratum); An International Mobile Subscriber Identity (IMSI) distinguishes; wherein the user terminal that establishes an RRC connection with the UTRAN is in an RRC Connected mode, and the user terminal in the mode is assigned a radio network temporary identifier (RNTI, Radio network temporary) Identity ) as the identity of the user terminal on the common transport channel.
  • NAS Non-Access stratum
  • IMSI International Mobile Subscriber Identity
  • the user terminal may be divided into different states according to the RRC connection level and the transport channel type that the user terminal can use: where the CELL_PCH state, the CELL_FACH state, and the CELLJDCH state are in the cell.
  • the CELL_PCH state the CELL_FACH state
  • the CELLJDCH state are in the cell.
  • user terminals in the URAJPCH state can be distinguished at the UTRAN URRAN register area.
  • the user terminal in the CELL-DCH state is assigned a dedicated physical channel, and the user terminal can use a dedicated transport channel and a shared channel and a combination thereof;
  • the user terminal in the CELL_FACH state continuously monitors a common transport channel (FACH, Forward Access Channel) in the downlink, and is assigned a default common channel (RACH, Reverse Access Channel) in the uplink; CELL-PCH and URA-PCH states.
  • the user terminal uses a discontinuous reception (DRX) method to monitor a paging channel (PCH, Page Channel) through a related paging indicator channel (PICH, Page Indicator Channel).
  • DRX discontinuous reception
  • a user terminal needs to measure a co-frequency neighboring cell.
  • HCS hierarchical cell structure
  • the user terminal may choose not to perform the same frequency measurement
  • the user terminal performs the same frequency measurement.
  • the parameter Sintrasearch in the above criterion represents an intra-frequency measurement threshold, which is transmitted by the current serving cell of the user terminal through the system broadcast.
  • the above-mentioned parameters Sx respectively represent the following meanings:
  • Squal Q qualmeas -Qqualmin
  • S criterion referred to the formula in the 3GPP specifications
  • Sx stands for Srxlev, where: A Qrxlevmin - Pcompensation; (referred to as the S criterion in the 3GPP specification)
  • the minimum quality level required in the Qqualmin area is only applicable to the FDD community.
  • the above-mentioned intra-frequency measurement criterion is only applicable to the same-frequency measurement processing when the user terminal UE is in the idle, URA_PCH and CELL_PCH states; when the UE is in the CELL_FACH state, the identified intra-frequency cell should be continuously measured and the new co-frequency is searched.
  • the user terminal UE In the Idle, U A_PCH, CELL-PCH and CELL_FACH states, the user terminal UE only needs to consider the intra-frequency cell that is forcibly measured according to the above-mentioned same-frequency measurement criterion as the intra-frequency measurement cell to be considered when the cell is reselected.
  • the criteria for the same frequency measurement by the user terminal are as follows:
  • the user terminal UE measures all of the same-frequency cells and the inter-frequency cells; otherwise if (Sx>Sin rasearch), the user The terminal only compares all the same-frequency cells and the inter-frequency cells with the highest priority of the HCS of the current serving cell; if (Sx ⁇ Sintrasearch), the user terminal selects the same-frequency cell and the different frequency with the HCS priority of the current serving cell. The cell or all the same-frequency cells and the inter-frequency cells with higher priority than the current serving cell have the same measurement.
  • the user terminal performs the same-frequency measurement on all the same-frequency cells, and performs inter-frequency measurement on all the inter-frequency cells with the highest HCS priority of the current serving cell.
  • the user terminal measures all the same frequency cells and the inter-frequency cells.
  • the user The terminal measures all co-frequency cells and inter-frequency cells. Otherwise, for other cases, the user terminal performs measurement on the same-frequency cell and the inter-frequency cell with the same HCS priority of the current serving cell or all the same-frequency cells and the inter-frequency cell with lower HCS priority than the current serving cell.
  • the parameter Sintrasearch in the above-mentioned intra-frequency measurement criterion represents the same-frequency measurement threshold
  • the parameter Sintersearch represents the inter-frequency measurement value
  • the parameter SsearchHCS represents the measurement threshold in the HCS, wherein the parameters Sintrasearch, Sintersearch and SsearchHCS are respectively broadcast by the current serving cell system. send. '
  • the same-frequency measurement criterion is also applicable to the same-frequency measurement processing when the user terminal UE is in the idle, URA_PCH, and CELL_PCH states; when the UE is in the CELLJFACH state, the identified same-frequency cell should be continuously measured and searched for new ones.
  • the user terminal UE In the Idle, URAJPCH, CELL_PCH and CELL-FACH states, the user terminal UE only needs to consider the intra-frequency cell that is forcibly measured according to the above-mentioned same-frequency measurement criterion as the intra-frequency measurement cell to be considered when the cell is reselected.
  • the user's demand for mobile communication services is no longer satisfied with the voice service, because the third generation mobile communication system can provide higher data transmission rate than the second generation mobile communication system. Therefore, a large number of multimedia services have emerged, such as: video phones, picture downloads, high-speed browsing Internet services and other services.
  • multimedia services such as: video phones, picture downloads, high-speed browsing Internet services and other services.
  • some application services require multiple users to receive the same data at the same time, such as: video on demand, TV broadcast, video conferencing, online education, interactive games and other services.
  • the third generation mobile communication system introduces the concept of multicast and broadcast, which is a technology for transmitting the same data from one data source to multiple targets. Therefore, WCDMA GSM Global Standards Organization 3GPP proposes Multimedia Broadcast/Multicast Service (MBMS), which is a point in the mobile communication network that provides a data source to send the same data to multiple users. Point business, to Realize the sharing of network resources and improve the utilization of network resources, especially the utilization of air interface resources.
  • MBMS Multimedia Broadcast/Multicast Service
  • the data transmission mode of the MBMS service between the UE and the UTRAN can be divided into two types: a Point to Point (PTP) mode and a Point to Multipoint (PTM) mode.
  • the PTP mode is used in the multicast mode of the MBMS, and the user terminal in the RRC connected mode in the multicast mode receives the control information through a Dedicated Control Channel (DCCH) and the Dedicated Traffic Channel (DTCH). Receive data information.
  • the PTM mode is used for the broadcast or multicast mode of the MBMS.
  • the user terminal in this mode receives data information through the MBMS point-to-multipoint traffic channel (MTCH, MBMS) and multipoint through MBMS.
  • the control channel (MCCH, MBMS point-to-multipoint Control Channel) receives control information.
  • the control information of the MBMS service in the PTM mode is delivered by the MCCH.
  • the MBMS control information sent and received on the MCCH includes service information, access information, and radio bearer information.
  • the control information is simply referred to as "MCCH information”.
  • the MCCH information is classified into two types: critical information and non-critical information: the critical information includes MBMS neighbor cell information, MBMS service information, and MBMS radio bearer information; and the non-critical information is MBMS access information.
  • the user terminal in the cell obtains the available MBMS service information by receiving the MCCH information; and obtains the access information of the service of interest by receiving the MBMS access information in the MCCH information, and sends a request to the UTRAN based on the access information.
  • the user terminal may combine the MBMS PTM services received from different cells in a combined manner, that is, the user terminal may receive the same MBMS RB bit stream from different cells, and The received MBMS RB bit stream is combined.
  • the user terminal may perform the combining process on the same MBMS PTM service received from different cells by using two combining modes: selecting merge and soft combining.
  • Soft integration may also include partial soft consolidation.
  • the selection merge is performed at the Radio Link Control (RLC) layer, and the soft combining is performed at the physical layer.
  • RLC Radio Link Control
  • These two merge modes are applied to user terminals from different cells.
  • the soft combining is often applied to the delay difference between different cells that can receive the same MBMS PTM service, which is at most one transmission time interval ( ⁇ , Transmission Time Interval) +1.
  • Transmission Time Interval
  • the selection combining is often applied to a case where the delay difference is larger than the difference between the different cells in which the soft combining is located.
  • the UTRAN shall send the MBMS neighbor cell information of the neighboring cell to the user terminal UE, where the MBMS neighbor cell information of the neighboring cell is included for selecting merge or soft, if the inter-cell selection combining or soft combining of the same MBMS PTM service is performed.
  • the MBMS neighboring cell information sent by the UTRAN further includes physical layer (U) merge scheduling information, which is used to indicate the specific moment of the same MBMS PTM service sent by the UE to the soft merge neighboring cell and the current serving cell. .
  • U physical layer
  • the UE can receive the data information carried on the MTCH of the neighboring cell without receiving the control information carried on the MCCH of the neighboring cell.
  • the UE may determine a suitable neighboring cell for subsequent selective combining or soft combining processing based on the measured signal quality. If the user terminal UE decides to perform selective combining or soft combining processing on the neighboring cell, and the user terminal UE has the correct MBMS neighbor cell information of the corresponding neighboring cell at this time, the user terminal performs the MBMS PTM service on the current serving cell and the neighboring cell.
  • merge or soft merge processing is the choice of merge or soft merge processing.
  • the UTRAN In order to support the merging process of the MBMS PTM service, the UTRAN needs to periodically send one or more MBMS Neighboring Cell PTM RB informatio information, which is the MBMS neighbor cell point-to-multipoint radio bearer information, to notify the UE of the current neighbor cell usage.
  • the MBMS priority frequency layer refers to the user terminal preferentially selecting the MBMS service to receive certain MBMS services in order to use resources efficiently.
  • the UTRAN sends the MBMS service on the frequency layer, and the priority frequency layer of each MBMS service is specifically indicated by the UTRAN to the user terminal.
  • the user terminal receiving the MBMS service should be stationed in the priority frequency layer cell indicated by the UTRAN as much as possible.
  • the user terminal performs cell reselection processing in the process of receiving the MBMS service.
  • the FDD terminal in the idle, CELL-PCH, URA_PCH, and CELL_FACH states, and receiving the MBMS PTM service carried on the MTCH is capable of identifying the same-frequency cell being measured, and will recognize the The same-frequency cell is used for MBMS PTM service merge processing carried on the MTCH.
  • the identified intra-frequency cells need to be sorted according to the reception quality of the MTCH, so as to select the MTCH receiving shield according to the sorted result.
  • the corresponding co-frequency cell with better quantity is used for the merging process of the MBMS PTM service carried on the MTCH.
  • the FDD terminal identifies the co-frequency cell in the measurement process, and uses the identified intra-frequency cell for the MBMS PTM service merging process carried on the MTCH.
  • the main implementation process is as follows:
  • the FDD terminal receives the system information indicated by the UTRAN (including system measurement control information, neighbor cell PTM information of the MBMS service, etc.), and measures the reception quality of the currently serving cell (where the reception quality of the current serving cell is measured)
  • the obtained measurement results are the values of Qq Ua imeas and Q kvmeas in the upper grid.
  • the Qquakiiin and Qrxlevmin values in the above grid are sent to the FDD terminal by the UTRAN through system measurement control information.
  • Pcompensation and its inclusion are included.
  • the parameter value is known internally to the FDD terminal itself);
  • the FDD terminal performs measurement according to the measurement result obtained by the above measurement and the same-frequency measurement threshold issued by the UTRAN, based on the same-frequency measurement criterion mentioned above, and measures the same-frequency cell that meets the condition of the same-frequency measurement criterion, and the result includes:
  • All intra-frequency cells are in compliance with the same-frequency measurement criteria, so the same-frequency measurement is performed for all the same-frequency cells;
  • the FDD terminal will not identify the measured intra-frequency cell.
  • the cell is identified, and the identified intra-frequency cells are sorted according to the reception quality of the MTCH, so that the corresponding intra-frequency cells with better MTCH reception quality are selected according to the sorted result, and used for the MBMS PTM carried on the MTCH. Merger processing of business.
  • the same-frequency cell identified by the FDD terminal is only the same-frequency cell that meets the requirements of the same-frequency measurement criterion, that is, the FDD terminal can only identify the same-frequency cell that meets the requirements of the same-frequency measurement criterion, and is used for the MTCH.
  • the technical problem to be solved by the present invention is to provide an intra-frequency cell identification method and a service merging method thereof for enabling a user terminal to perform effective merging processing on a broadcast multicast service in a co-frequency cell and improve broadcasting.
  • the combined effect and coverage of multicast services is to provide an intra-frequency cell identification method and a service merging method thereof for enabling a user terminal to perform effective merging processing on a broadcast multicast service in a co-frequency cell and improve broadcasting.
  • the present invention further provides a user terminal corresponding to the above method.
  • a method for identifying a same-frequency cell includes the following steps: a user terminal that is in a state of receiving a broadcast multicast service learns a co-frequency cell that participates in a broadcast multicast service merging process that is received by itself; and performs the same-frequency on the learned intra-frequency cell The measurement process is to identify an unidentified co-frequency cell in the learned co-frequency cell.
  • a user terminal comprising: a same-frequency cell learning unit, configured to: when receiving a broadcast multicast service state, knowing a same-frequency cell that is involved in receiving a broadcast multicast service combining process; and a measurement and identification unit, configured to be used by Each intra-frequency cell learned by the same-frequency cell learning unit performs the same-frequency measurement process to identify an unidentified co-frequency cell in the learned co-frequency cell.
  • a method for merging a broadcast multicast service includes the following steps: The user terminal that is in the state of receiving the broadcast multicast service performs the same-frequency measurement on the same-frequency cell that participates in the broadcast multicast service merging process that is received by itself; the same frequency measured by the user terminal Selecting an intra-frequency cell in the cell; and performing a merge process on the broadcast multicast service received by the same-frequency cell based on the selected same-frequency cell.
  • a user terminal comprising: an intra-frequency measurement unit, configured to perform intra-frequency measurement processing on a same-frequency cell that is involved in a broadcast multicast service combining process received by a user terminal; and a selecting unit, configured to be measured by the same-frequency measurement unit The same-frequency cell is selected in the same-frequency cell; the service merging unit is configured to perform a merging process on the broadcast multicast service received by the user terminal based on the same-frequency cell selected by the selecting unit.
  • An intra-frequency cell identification method includes the following steps:
  • the UTRAN delivers system measurement control information that ensures that the same-frequency cell that is involved in the broadcast multicast service combining process received by the user terminal meets the same-frequency measurement criterion;
  • the system measures the control information, and performs the same-frequency measurement on the same-frequency cell that meets the same-frequency measurement criterion, so as to identify the unidentified cell in the same-frequency cell that meets the same-frequency measurement criterion.
  • a user terminal comprising: means for receiving system measurement control information that is sent by the UTRAN to ensure that the same-frequency cell that is involved in the broadcast multicast service combining process received by the user terminal meets the same-frequency measurement criterion;
  • the obtained system measures the control information, and performs the same-frequency measurement on the same-frequency cell that meets the same-frequency measurement criterion, so as to identify the unidentified cell unit in the same-frequency cell that meets the same-frequency measurement criterion.
  • a method for merging a broadcast multicast service includes the following steps: UTRAN delivers system measurement control information that ensures that the same-frequency cell that is involved in the process of combining the broadcast multicast services received by the user terminal meets the same-frequency measurement criteria; System measurement control information, performing on-frequency measurement on the same-frequency cell that meets the same-frequency measurement criterion, to identify an unidentified cell in the same-frequency cell that meets the same-frequency measurement criterion; the user terminal is based on the preset selection condition And selecting a corresponding intra-frequency cell in the same-frequency cell identified by the same-frequency cell that meets the same-frequency measurement criterion; and performing a merge process on the broadcast multicast service received by the same-frequency cell based on the selected same-frequency cell.
  • a user terminal comprising: receiving the UTRAN to ensure that the participating user terminal receives The same-frequency cell that is processed by the broadcast multicast service merges the unit of the system measurement control information that meets the same-frequency measurement criterion; and is used for the same-frequency cell that meets the same-frequency measurement criterion to perform the same frequency according to the received system measurement control information.
  • the device of the present invention learns the same-frequency cell that participates in the broadcast multicast service combining process that is received by the user terminal that is in the state of receiving the broadcast multicast service, and performs the same-frequency measurement process on each of the learned same-frequency cells, so as to obtain the same An unidentified co-frequency cell is identified in the frequency cell, so that the user terminal can subsequently select a corresponding intra-frequency cell based on the same-frequency cell identified by the same-frequency cell participating in the broadcast multicast service combining process received by the user, and Performing a merge process on the broadcast multicast service received by the same-frequency cell based on the selected co-frequency cell, so that the user terminal can perform effective merge processing on the broadcast multicast service in multiple intra-frequency cells, thereby improving the broadcast multicast service.
  • the combined effect also improves the coverage of the broadcast multicast service.
  • FIG. 1 is a flowchart of a main implementation principle of a method for identifying a co-frequency cell according to the present invention
  • FIG. 2 is a block diagram showing the main components of a user terminal according to the present invention.
  • FIG. 3 is a block diagram showing a specific structure of a same-frequency cell learning unit in a user terminal according to the present invention
  • FIG. 4 is a flowchart of a main implementation principle of a method for merging a broadcast multicast service according to the present invention
  • FIG. 5 is a flowchart of processing an embodiment of a method for merging a broadcast multicast service according to the present invention
  • FIG. 6 is a block diagram showing the main components of another user terminal according to the present invention.
  • FIG. 7 is a block diagram of a first embodiment of a specific configuration of a selection unit in a user terminal according to the present invention
  • FIG. 8 is a block diagram of a second embodiment of a specific configuration of a selection unit in a user terminal according to the present invention
  • Detailed block diagram of the composition 10 is a flowchart of a main implementation principle of another method for identifying an intra-frequency cell according to the present invention
  • FIG. 11 is a flow chart showing the main implementation principle of another method for merging broadcast multicast services according to the present invention. detailed description
  • the solution of the present invention is to prevent the user terminal from performing the effective merging process between the intra-frequency cells of the MBMS PTM service received from the same-frequency cell, which may result in the reduction of the MBMS service combining effect and the reduction of the MBMS service coverage.
  • the user terminal In the process of performing measurement and identification on the same-frequency cell when receiving the MBMS PTM service, the user terminal enables the user terminal to perform measurement and identification on the same-frequency cell that is involved in the MBMS PTM service merging process, without considering the constraint of the same-frequency measurement criterion. Therefore, based on the same-frequency cell identification method, the user terminal can perform effective service combining processing on the received MBMS PTM service to facilitate coverage of the MBMS service.
  • FIG. 1 is a flowchart of the main implementation principle of the method for identifying a co-frequency cell according to the present invention.
  • the main implementation process is as follows:
  • the user terminal UE that is in the state of receiving the broadcast multicast service first learns the same-frequency cell that may participate in the broadcast multicast service combining process that is received by itself; wherein the UE may use the control information carried by the UTRAN on the broadcast multicast service control channel. Obtaining the same-frequency cell participating in the combined processing of the broadcast multicast service received by itself;
  • S20 The UE performs the same-frequency measurement process on each of the learned intra-frequency cells to identify an unidentified co-frequency cell in the learned intra-frequency cell.
  • the broadcast multicast service mentioned in the above process includes, but is not limited to, multicast point-to-multipoint service (MBMS PTM service) for multimedia broadcasting;
  • the mentioned user terminal UE includes but is not limited to a frequency division duplex mode. Terminal (FDD terminal) and time division duplex mode terminal (TDD terminal).
  • FIG. 2 is a block diagram of the main components of the user terminal of the present invention.
  • the main components thereof include the same-frequency cell learning unit 10 and the measurement identification unit 20.
  • the main functions of the two components are as follows:
  • the same-frequency cell learning unit 10 is mainly used when the user terminal is in the state of receiving the broadcast multicast service, and learns the same-frequency cell that is involved in the received broadcast multicast service combining process;
  • the measurement identification unit 20 is configured to perform the same-frequency measurement processing on each of the same-frequency cells learned by the same-frequency cell learning unit 10, so as to identify that the same-frequency cell learned by the same-frequency cell learning unit 10 is different. Co-frequency cell.
  • FIG. 3 is a block diagram of a specific component structure of a same-frequency cell learning unit in a user terminal according to the present invention, the main components of which include a control information receiving sub-unit 110 and an intra-frequency cell obtaining sub-unit 120, which are composed of two parts.
  • the main functions are as follows:
  • the control information receiving subunit 110 is mainly configured to receive control information carried by the UTRAN on the broadcast multicast service control channel;
  • the intra-frequency cell learning sub-unit 120 is mainly configured to learn, according to the control information received by the control information receiving sub-unit 110, the intra-frequency cells of the broadcast multicast service combining process received by the user terminal.
  • the above-mentioned broadcast multicast service mentioned in the user terminal includes but is not limited to multicast multicast point-to-multipoint service (MBMS PTM service;); the user terminal UE can work in frequency division duplex mode (FDD) ), can also work in time division duplex mode (TDD).
  • FDD frequency division duplex mode
  • TDD time division duplex mode
  • the present invention combines the above-mentioned same-frequency cell identification method, and further proposes a broadcast multicast service merging method.
  • FIG. 4 the figure is a flowchart of the main implementation principle of the broadcast multicast service merging method of the present invention, which mainly The implementation process is as follows:
  • the user terminal (such as a TDD terminal or an FDD terminal) that is in the state of receiving the broadcast multicast service performs intra-frequency measurement on the same-frequency cell that participates in the broadcast multicast service combining process that is received by itself; wherein the user terminal can broadcast multicast according to the UTRAN.
  • the control information carried on the service control channel is used to learn the same-frequency cell that participates in the broadcast multicast service combining process received by itself, and performs the same-frequency measurement process on the learned intra-frequency cell;
  • the user terminal may perform intra-frequency measurement only on the same-frequency cell that participates in the broadcast multicast service combining process received by itself under the condition of the same-frequency measurement criterion.
  • S200 The user terminal selects an intra-frequency cell in the measured same-frequency cell.
  • the process of selecting the same-frequency cell in the same-frequency cell measured above may be, but is not limited to, the following process:
  • the user terminal selects a corresponding co-frequency cell in the measured same-frequency cell according to the set selection condition
  • the co-frequency cell selection condition preset therein may be, but is not limited to,:
  • the same frequency cell with higher receiving quality of the N broadcast multicast service channels is selected for performing subsequent combining processing on the received broadcast multicast service, where N is a natural number.
  • the user terminal performs a combining process on the broadcast multicast service that is received by the user terminal based on the selected intra-frequency cell.
  • the user terminal proposed by the method of the present invention performs the process of combining the broadcast multicast services received from the intra-frequency cells with the MBMS PTM service received by the user terminal in the prior art.
  • the TDD terminal can directly select the same-frequency cell that is processed by the thousand subsequent merging in the measured intra-frequency cell, and does not require that the selected co-frequency cell must be the same-frequency cell that has been identified by the TDD terminal.
  • the main reason why the TDD terminal can be processed in this way is that, in the current UMTS system, the SCCPCH channel carrying the MBMS service information in the TDD mode is transmitted in a certain downlink time slot, and the TDD terminal receiving the MBMS service can directly come in the current serving cell.
  • Information so it is possible to search for the same frequency neighboring cell to carry the MBMS industry by measuring the same frequency neighboring cell.
  • the user terminal may also identify an unidentified co-frequency cell in the measured intra-frequency cell, and select a corresponding intra-frequency cell based on the identified co-frequency cell to use for the broadcast multicast service received by itself. Perform the merge process.
  • the specific processing procedure for the user terminal to select the same-frequency cell in the measured intra-frequency cell may include:
  • the user terminal performs identification processing on the unidentified co-frequency cell in the measured same-frequency cell; and selects the corresponding intra-frequency cell in the same-frequency cell identified by the user.
  • the process of selecting the same-frequency cell in the same-frequency cell identified by the UI may be, but is not limited to, the following process:
  • the user terminal selects a corresponding intra-frequency cell in the identified same-frequency cell according to the set selection condition
  • the co-frequency cell selection condition preset therein may be, but is not limited to,:
  • the same frequency of the N broadcast multicast service channel receiving quality is relatively high; the cell is used to perform the merge processing on the received broadcast multicast service, where N is a natural number.
  • the broadcast multicast service mentioned in the above process can be, but is not limited to, multimedia multicast multicast point-to-multipoint service (MBMS PTM service).
  • MBMS PTM service multimedia multicast multicast point-to-multipoint service
  • the following takes the TDD terminal as an example to illustrate the main implementation process of performing service merge processing on MBMS PTM services received from intra-frequency cells after applying the solution of the present invention:
  • the TDD terminal receives the system information sent by the UTRAN, and measures the received amount of the current serving cell;
  • the TDD terminal that is receiving the MBMS PTM service carried on the MTCH performs measurement on the same-frequency cell that participates in the MBMS PTM service combining process that is received by itself;
  • the TDD terminal sorts the measured intra-frequency cells according to the reception quality of their respective MTCHs, and selects several intra-frequency cells with relatively high MTCH reception amount in the sorted intra-frequency cells for MBMS PTM received by itself.
  • Business execution merge processing In the foregoing steps 2 and 3, the TDD terminal measures the intra-frequency cell used for the combining process for performing the combining process on the MBMS PTM service received by the TDD terminal, and the other is to fully identify the measured intra-frequency cell. After that, the same-frequency cell for service merging is selected from the other, and the other is to directly select the same-frequency cell for service merging after measuring the same-frequency cell participating in the service merging process, without completely recognizing that it is not The identified intra-frequency cell.
  • FIG. 5 is a flowchart of an embodiment of a method for merging broadcast multicast services according to the present invention.
  • the main implementation process is as follows:
  • a selection condition is set in the user terminal UE in advance; wherein the selected selection condition may be, but is not limited to:
  • the user terminal that is in the state of receiving the broadcast multicast service learns the same-frequency cell that participates in the broadcast multicast service combining process that is received by the user terminal.
  • the user terminal can learn to participate according to the control information carried by the UTRAN on the broadcast multicast service control channel.
  • S130 The user terminal performs the same-frequency measurement process on each of the learned intra-frequency cells to identify an unidentified co-frequency cell in the learned intra-frequency cell.
  • S140 The user terminal selects a corresponding intra-frequency cell in the same-frequency cell that is identified by the learned co-frequency cell according to the preset selection condition, that is, according to the foregoing selection condition, each identified intra-frequency cell is determined according to the The receiving quality of the broadcast multicast service channel is sorted, and the same frequency radio cell with the higher receiving quality of the N broadcast multicast service channels is selected in the sorting result for performing subsequent combining processing on the broadcast multicast service received by the broadcast multicast service.
  • the user terminal performs a merge process on the broadcast multicast service received by the UE based on the selected intra-frequency cell.
  • the broadcast multicast service mentioned in the above process includes but is not limited to multimedia broadcast multicast.
  • Point-to-multipoint service (MBMS PTM service) the user terminal UE mentioned includes, but is not limited to, a frequency division duplex mode terminal (FDD terminal) and a time division duplex mode terminal (TDD terminal).
  • FDD terminal frequency division duplex mode terminal
  • TDD terminal time division duplex mode terminal
  • FIG. 6 is a block diagram of a main component structure of another user terminal according to the present invention, which mainly includes an intra-frequency measurement unit 100, a selection unit 200, and a service merging unit 300.
  • the main functions of these components are as follows:
  • the intra-frequency measurement unit 100 is configured to perform intra-frequency measurement processing on the same-frequency cell that is involved in the broadcast multicast service combining process received by the user equipment;
  • the selecting unit 200 is configured to select a co-frequency cell in the same-frequency cell measured by the intra-frequency measurement unit 100;
  • the service merging unit 300 is configured to perform a merging process on the broadcast multicast service received by the user terminal based on the same-frequency cell selected by the selecting unit 200.
  • the selection unit 200 mainly includes a first selection condition setting subunit 2001 and a first selection subunit 2002.
  • the main functions of the section are as follows:
  • the first selection condition setting sub-unit 2001 is configured to preset a first selection condition; wherein the first selection condition preset in the first selection condition setting sub-unit 2001 may be, but is not limited to, being measured by the same-frequency measurement unit 100.
  • the same-frequency cells are sorted according to the number of connections of their respective broadcast multicast industries;
  • a first selection sub-unit 2002 configured to select a corresponding intra-frequency cell in the same-frequency cell measured by the intra-frequency measurement unit 100 according to the first selection condition preset in the first selection condition setting sub-unit 2001, that is, according to the above
  • the first selection condition setting sub-unit 2001 pre-sets the selection condition
  • the first selection sub-unit 2002 herein will combine the same-frequency cells of the broadcast multicast service received by the participating user terminals measured by the same-frequency measurement unit 100 according to their respective
  • the receiving quality of the broadcast multicast service channel is sorted, and the receiving quality of the broadcast multicast service channel is selected according to the sorting result.
  • the high co-frequency cell is used by the subsequent service combining unit 300 to perform a merge process on the received broadcast multicast service.
  • FIG. 8 is a block diagram of a second embodiment of a specific component structure of a selection unit in a user terminal according to the present invention.
  • the selection unit 200 mainly includes an identification subunit 2003 and a selection subunit 2004.
  • the main functions of the two components are as follows:
  • the identification subunit 2003 is configured to identify an unidentified co-frequency cell in the same-frequency cell measured by the intra-frequency measurement unit 100;
  • the selecting subunit 2004 is configured to select a corresponding intra-frequency cell in the same-frequency cell identified by the foregoing identifying sub-unit 2003 for the subsequent service combining unit 300 to perform a combining process on the received broadcast multicast service.
  • FIG. 9 is a block diagram of a specific structural structure of the selection subunit in FIG. 8 , wherein the selection subunit 2004 specifically includes a second selection condition setting subunit and a second selection subunit, and the main functions of the two components are as follows: :
  • a second selection condition setting subunit configured to preset a second selection condition; wherein the second selection condition preset in the second selection condition setting subunit may be, but is not limited to:
  • the same-frequency cell newly identified by the identification sub-unit 2003 and the same-identified cell that has been identified are sorted according to the reception quality of each broadcast multicast service channel;
  • N broadcast multicast service channels are selected to receive the same frequency band with high quality, where N is a natural number;
  • a second selection sub-unit configured to select, according to the second selection condition preset by the second selection condition setting sub-unit, the same-frequency cell newly identified by the identification sub-unit 2003 and the same-identified cell that has been identified.
  • the same-frequency cell that is, the selection condition pre-set by the sub-unit is set according to the second selection condition, and the second selection sub-unit here will identify the same-frequency cell newly identified by the identification sub-unit 2003 and the same-identified cell that has been identified.
  • the receiving quality of the respective broadcast multicast service channels is sorted, and the N broadcast cells of the broadcast multicast service channel having a relatively high reception quality are selected according to the # sequence result, and the subsequent service combining unit 300 performs the broadcast multicast service for the received broadcast multicast service. Merge processing.
  • the above-mentioned broadcast multicast service mentioned in the user terminal includes but is not limited to multimedia Multicast point-to-multipoint service (MBMS PTM service); the user terminal UE can operate in frequency division duplex mode (FDD) or in time division duplex mode (TDD).
  • MBMS PTM service multimedia Multicast point-to-multipoint service
  • FDD frequency division duplex mode
  • TDD time division duplex mode
  • Embodiment 1 The implementation of the solution of the present invention is implemented on an FDD terminal to implement an effective merge process for the MBMS PTM service carried on the MTCH:
  • the FDD terminal is receiving the MBMS PTM service carried on the MTCH, and knows the same-frequency cell that participates in the MBMS PTM service merge processing received by itself according to the control information carried on the MCCH channel;
  • the FDD terminal performs the same-frequency measurement on the same-frequency cells that are known to participate in the MBMS PTM service combining process that is received by the FDD terminal, regardless of whether the learned intra-frequency cell meets the requirements of the same-frequency measurement criterion;
  • the FDD terminal that receives the MBMS PTM service carried on the MTCH identifies and identifies the unidentified co-frequency cell in the same-frequency cell that is learned;
  • the FDD terminal sorts the same-frequency cells identified in the above-mentioned known intra-frequency cells according to their respective MTCH reception qualities, and selects several 'inter-frequency cells with good MTCH reception quality based on the ranking result. Perform a merge process on the MBMS PTM service carried on the MTCH.
  • Embodiment 2 The solution of the present invention is applied to implement an effective merge process for MBMS PTM services carried on an MTCH on a TDD terminal:
  • the TDD terminal is receiving the MBMS PTM service carried on the MTCH, and learns the same-frequency cell that participates in the MBMS PT service combined processing received by the MBCH channel according to the control information carried on the MCCH channel;
  • the TDD terminal performs the same-frequency measurement on the same-frequency cells that are known to participate in the MBMS PTM service combining process received by the TDD terminal, regardless of whether the learned intra-frequency cell meets the requirements of the same-frequency measurement criterion;
  • the TDD terminal that receives the MBMS PTM service carried on the MTCH performs identification processing on the unidentified co-frequency cell in the learned intra-frequency cell;
  • the TDD terminal sorts the same-frequency cells identified in the same-frequency cell learned by the above-mentioned ones according to their respective MTCH connections, and selects the MTCH receiving quality based on the sorting result.
  • Several intra-frequency cells are used to perform a merge process on the MBMS PTM services carried on the MTCH.
  • the present invention also proposes another method for identifying the same-frequency cell, which can also be used to identify the same-frequency cell participating in the received broadcast multicast service combining process when the user terminal is in the state of receiving the broadcast multicast service.
  • the present invention proposes a corresponding broadcast multicast service merging method, so that the user terminal can select a number of intra-frequency cells identified by the same-frequency cell participating in the received broadcast multicast service merging process.
  • the appropriate intra-frequency cell is used to perform the merging process on the received broadcast multicast service, and the user terminal is configured to perform effective combining processing on the broadcast multicast service received by the user terminal to enhance the coverage of the broadcast multicast service.
  • FIG. 10 is a flowchart of a main implementation principle of another method for identifying an intra-frequency cell proposed by the present invention.
  • the main implementation process is as follows:
  • the UTRAN delivers system measurement control information that ensures that the same-frequency cells that are involved in the broadcast multicast service combining process received by the user terminal meet the same-frequency measurement criteria;
  • S510 The user equipment performs intra-frequency measurement on the same-frequency cell that meets the same-frequency measurement criterion according to the system measurement control information sent by the UTRAN, to identify an unidentified cell in the same-frequency cell that meets the same-frequency measurement criterion.
  • the UTRAN can transmit the system measurement control information that does not include the same-frequency measurement threshold (Sintrasearch) to the current serving cell of the user terminal when the cell hierarchy (HCS) is not applied, so that the broadcast that is received by the user terminal can be ensured.
  • the same-frequency cells processed by the multicast service are in compliance with the same-frequency measurement criteria.
  • the UTRAN may send system measurement control information that does not include the same-frequency measurement threshold (Sintrasearch) to the current serving cell of the user terminal during the cell hierarchy (HCS) application, and the transmission does not include the cell hierarchical structure measurement.
  • the combined frequency cells are in compliance with the same frequency measurement criteria.
  • the UTRAN can also send the same-frequency measurement threshold (Sintrasearch) by the current service to the user terminal when the HCS is not applied, which is greater than the current serving cell of the user terminal.
  • the system measurement control information of the received quality value calculated by the s criterion can ensure that the same frequency frequency of the broadcast multicast service combining processing received by the user terminal is consistent with the same frequency measurement criterion. .
  • the UTRAN may also transmit, by the current serving cell of the user terminal, a system including a cell layered structure measurement threshold (SearchHCS) greater than a received bandwidth value calculated by the S criterion of the current serving cell of the user terminal.
  • the control information is measured, or when the user terminal is an FDD terminal, the system measurement control information including the inter-frequency measurement threshold (Sintersearch) greater than the reception quality value calculated by the S-criteria of the current serving cell of the user terminal is transmitted.
  • the same-frequency cells participating in the broadcast multicast service combining process received by the user terminal are all in compliance with the same-frequency measurement criteria.
  • the broadcast multicast service mentioned in the foregoing process includes, but is not limited to, multicast point-to-multipoint service (MBMS PTM service) for multimedia broadcasting;
  • the mentioned user terminal UE includes but is not limited to a frequency division duplex mode terminal. (FDD terminal) and time division duplex mode terminal (TDD terminal).
  • FDD terminal frequency division duplex mode terminal
  • TDD terminal time division duplex mode terminal
  • a broadcast multicast service merging method is proposed correspondingly.
  • the figure is another broadcast multicast service merging method proposed by the present invention.
  • the main implementation principle flow chart, the main implementation process is as follows:
  • a selection condition is set in the user terminal in advance, wherein the selected selection condition may be, but is not limited to:
  • the UTRA delivers system measurement control information that ensures that the same-frequency cells that are involved in the broadcast multicast service combining process received by the user terminal meet the same-frequency measurement criteria;
  • S620 The user equipment performs the same-frequency measurement on the same-frequency cell that meets the same-frequency measurement criterion according to the system measurement control information sent by the UTRAN, to identify the unidentified cell in the same-frequency cell that meets the same-frequency measurement criterion.
  • the user terminal selects a corresponding intra-frequency cell in the same-frequency cell identified by the same-frequency cell that meets the same-frequency measurement criterion according to the foregoing preset selection condition, that is, according to the foregoing selection condition, each identified frequency is identified.
  • the cells are sorted according to the receiving quality of the respective broadcast multicast service channels, and the same frequency of the N broadcast multicast service channels is selected in the sorting result to perform subsequent merge processing on the broadcast multicast services received by the cells. ;
  • the user terminal performs a merge process on the broadcast multicast service received by itself according to the selected intra-frequency cell.
  • the UTRAN can send the system measurement control information that does not include the Sintrasearch to the current serving cell of the user terminal when the HCS is not applied, so that the same-frequency cell that ensures the broadcast multicast service combining process received by the user terminal can be consistent with the same frequency. Measurement criteria.
  • the UTRAN may send system measurement control information that does not include Sintmsearch to the current serving cell of the user terminal, or send system measurement control information that does not include SearchHCS, or when the user terminal is an FDD terminal, the UTRAN may not include the HCS application.
  • Sintersearch's system measurement control information can achieve the same frequency measurement criteria for ensuring that the same-frequency cells of the broadcast multicast service combining process received by the user terminal are processed.
  • the UTRAN may also send, by the current serving cell of the user terminal, a reception quality value calculated by using an S-tradition that is greater than the current serving cell of the user terminal (the S-standard is specifically described in the prior art) when the HCS is not applied.
  • the system measures the control information, so that the same-frequency cells that ensure the broadcast multicast service combining process received by the participating user terminals can meet the same-frequency measurement criteria.
  • the UTRAN may also send, to the current serving cell of the user equipment, system measurement control information including a received quality value calculated by performing S criterion calculation on the current serving cell of the user terminal, or FDD in the user terminal.
  • system measurement control information including a received quality value calculated by performing S criterion calculation on the current serving cell of the user terminal, or FDD in the user terminal.
  • the broadcast multicast service mentioned in the above process includes but is not limited to multimedia broadcast multicast.
  • Point-to-multipoint service (MBMS PTM service) the mentioned user terminal UE includes but is not limited to a frequency division duplex mode terminal (FDD terminal) and a time division duplex mode terminal (TDD terminal ⁇ )

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Description

同频小区的识别方法、 业务合并方法及其用户终端 技术领域
本发明涉及第三代移动通信系统( 3G, The 3rd Generation ) 中的小区识 别技术, 尤其涉及一种同频小区的识别方法、 业务合并方法及其用户终端。 背景技术
通用移动通信系统 ( UMTS , Universal Mobile Telecommunications System ) 是采用 WCDMA 空中接口技术的第三代移动通信系统, 主要是在 CDMA/GSM全球标准化组织 3GPP中发展。
其中在 3GPP UMTS标准中, 根据无线资源控制 (RRC, Radio Resource Control )连接是否建立, 可以将用户终端分为空闲 (Idle )模式和 RRC连接 ( Connected )模式两种: 其中未与 UMTS通用陆地无线接入网 (UTRA , Universal Terrestrial Radio Access Network )建立 RRC连接的用户终端处于 Idle 模式, 该模式下的用户终端只能通过非接入层( NAS , Non-Access Stratum ) ; 标识来区分, 如通过国际移动台识别号( IMSI, International Mobile subscriber identity )来区分; 其中巳与 UTRAN建立 RRC连接的用户终端处于 RRC Connected模式, 该模式下的用户终端被分配了无线网络临时标识(RNTI, Radio network temporary identity ), 以作为该用户终端在公共传输信道上的标 识。
而对于 RRC Connected模式的用户终端, 又可根据 RRC连接的层次和用 户终端能使用的传输信道类型将用户终端划分为不同状态: 其中 CELL_PCH 状态、 CELL—FACH状态和 CELLJDCH状态下的用户终端在小区层次上可以 区分, URAJPCH状态下的用户终端在 UTRAN登记区( URA, UTRAN Register Area )层次上可以区分。 其中 CELL一 DCH状态下的用户终端被分配了专用的 物理信道, 用户终端可使用专用传输信道和共享信道以及它们的组合; CELL_FACH状态下的用户终端在下行要连续监控一个公共传输信道( FACH, Forward Access Channel ), 在上行被分配缺省的公共信道(RACH, Reverse Access Channel ); CELL— PCH和 URA— PCH状态下的用户终端采用不连续接 收(DRX, Discontinuous Reception )方式通过相关的寻呼指示信道(PICH, Page Indicator Channel )监控一个寻呼信道( PCH, Page Channel ), 这两种状 态下的用户终端没有任何上行活动。
在 3GPP规范中,规定用户终端需要对同频邻小区进行测量。其中在小区 分层结构(HCS, hierarchy cell structure )不使用的情况下, 用户终端进行同 频测量的准则如下:
如果 Sx>Sintrasearch, 则用户终端可能选择不执行同频测量;
如果 Sx≤Sintrasearch, 则用户终端执行同频测量;
如果当前服务小区不发送 Sintrasearch, 则用户终端执行同频测量。
其中上述准则中的参数 Sintrasearch代表同频测量阈值, 该同频测量阀值 由用户终端的当前服务小区通过系统广播发送。
其中在上述同频测量准则中, 根据用户终端当前所工作在的小区类型不. 同, 上述参数 Sx分别代表下列含义:
用户终端当前所工作在的小区类型为 FDD小区时, Sx代表 Squal,其中: Squal=Qqualmeas-Qqualmin; (在 3GPP规范中将该公式称之为 S准则 ) 用户终端当前所工作在的小区类型为 TDD小区时, Sx代表 Srxlev,其中:
Figure imgf000004_0001
一 Qrxlevmin― Pcompensation; (在 3GPP规范中将该公式 称之为 S准则)
上述两个公式中各个参数的具体含义如下表所示: Squal 小区选择盾量, 只适用于 FDD小区
Srxlev 小区选择接收水平
Qqualmeas 测量到的小区质量, 只适用于 FDD小区
Qrxlevmeas 测量到的小区接收水平
Qqualmin 小区内所要求的最小质量水平, 只适用于 FDD小区
Qrxlevmin 小区内所要求的最小接收水平
Pcompensation Max ( UE TXPWR MAX RACH-P MAX, 0 )
UE一 TXPWR— MAX—RACH UE通过 RACH接入小区时可能使用的最大发射功率
P_MAX UE最大射频发射功率
以上同频测量准则只适用于用户终端 UE 处于 idle , URA_PCH 和 CELL_PCH状态下时的同频测量处理; 其中 UE处于 CELL_FACH状态下时 应该不断地测量已识别到的同频小区并搜索新的同频小区; 在 Idle , U A_PCH, CELL— PCH和 CELL_FACH状态下时, 用户终端 UE只需考虑根 据以上同频测量准则进行强制测量的同频小区作为小区重选时要考虑的同频 测量小区。
在 HCS使用的情况下, 用户终端进行同频测量的准则如下:
对于未处于高速移动的用户终端而言:
如果 ( Srxlev≤SsearchHCS ) 或 (如果用户终端是 FDD 模式终端且 Sx<Sintersearch ), 则用户终端 UE对所有的同频小区和异频小区都进行测量; 否则如果(Sx>Sin rasearch ), 则用户终端只对比当前服务小区的 HCS优先级 高的所有同频小区和异频小区进行测量; 如果( Sx≤Sintrasearch ), 则用户终 端对与当前服务小区的 HCS优先级相等的同频小区和异频小区或比当前服务 小区的 HCS优先级高的所有同频小区和异频小区进行测量。
如果当前服务小区不发送 Sintrasearch, 则用户终端对所有同频小区进行 同频测量, 并对比当前服务小区的 HCS优先级高的所有异频小区进行异频测 量。
如果当前服务小区不发送 SearchHCS, 或用户终端为 FDD模式终端时且 当前服务小区不发送 Sintersearch, 则用户终端对所有同频小区和异频小区进 行测量。
对于处于高速移动的用户终端而言: 如果 ( Srxlev≤SsearchHCS ) 或 (如杲用户终端是 FDD 模式终端且 Sx<Sintersearch ), 或当前服务小区不发送 SearchHCS, 或用户终端是 FDD模 式终端时且当前服务小区不发送 Sintei'search, 则用户终端对所有的同频小区 和异频小区进行测量。否则对于其他情况,用户终端对与当前服务小区的 HCS 优先级相等的同频小区和异频小区或比当前服务小区的 HCS优先级低的所有 同频小区和异频小区进行测量。
其中上述同频测量准则中的参数 Sintrasearch表示同频测量阈值, 参数 Sintersearch表示异频测量阁值, 参数 SsearchHCS表示 HCS时的测量阈值, 其中参数 Sintrasearch, Sintersearch和 SsearchHCS都分别由当前服务小区系 统进行广播发送。 '
上述同频测量准则也只适用于用户终端 UE 处于 idle, URA_PCH和 CELL_PCH状态下时的同频测量处理; 其中 UE处于 CELLJFACH状态下时 应该不断地测量已识别到的同频小区并搜索新的同频小区; 在 Idle , URAJPCH, CELL_PCH和 CELL—FACH状态下时, 用户终端 UE只需考虑根 据以上同频测量准则进行强制测量的同频小区作为小区重选时要考虑的同频 测量小区。
同时, 伴随着第三代移动通信技术的发展, 用户对移动通信业务的需求 已不再满足于语音业务, 由于第三代移动通信系统可以提供比第二代移动通 信系统更高的数据传输速率, 因此大量的多媒体业务便涌现出来, 比如: 视 频电话、 图片下载、 高速浏览 Internet网络等服务。 其中, 一些应用业务要求 多个用户能同时接收相同的数据, 比如: 视频点播、 电视广播、 视频会议、 网上教育、 互动游戏等业务。
为了有效利用移动通信网络资源, 笫三代移动通信系统引入了组播和广 播的概念, 组播和广播业务是一种从一个数据源向多个目标传送相同数据的 技术。 由此, WCDMA GSM全球标准化组织 3GPP提出了多媒体广播 /组播业 务( MBMS, Multimedia Broadcast/Multicast Service ), 所谓 MBMS就是在移 动通信网络中提供一个数据源向多个用户发送相同数据的点到多点业务, 以 实现网络资源共享, 提高网络资源的利用率, 尤其是空口接口资源的利用率。
MBMS业务在 UE和 UTRAN之间的数据传输模式可分为两种: 点到点 ( PTP, Point to Point )模式和点到多点(PTM, Point to Multipoint )模式。 其中 PTP模式用于 MBMS的组播模式, 组播模式下的 RRC连接模式下的用 户终端通过专用控制信道( DCCH, Dedicated Control Channel )接收控制信息、 及通过专用业务信道(DTCH, Dedicated Traffic Channel )接收数据信息。 而 PTM模式用于 MBMS的广播或组播模式, 该模式下的用户终端通过 MBMS 点到多点业务信道(MTCH, MBMS point-to-multipoint Traffic Channel )接收 数据信息、 及通过 MBMS 点到多点控制信道 ( MCCH , MBMS point-to-multipoint Control Channel )接收控制信息。
其中 MBMS业务在 PTM模式下的控制信息是通过 MCCH下发的, 在 MCCH上下发的 MBMS控制信息包括业务信息、接入信息和无线承载信息等, 为简单起见,以下将在 MCCH上发送的 MBMS控制信息简称为" MCCH信息"。 MCCH信息分为临界信息和非临界信息两种:临界信息包括 MBMS邻小区信 息、 MBMS业务信息和 MBMS无线承载信息; 非临界信息为 MBMS接入信 息。
在小区内用户终端通过接收 MCCH信息来获取可得的 MBMS业务信息; 还通过接收 MCCH信息中的 MBMS接入信息来获知感兴趣业务的接入信息, 并基于该接入信息向 UTRAN发送请求。
为了提高用户终端接收 MBMS PTM业务的增益和增强覆盖,用户终端可 以采用合并方式来对从不同小区接收的 MBMS PTM业务进行合并处理,即用 户终端可以接收来自不同小区的相同 MBMS RB比特流, 并对接收的 MBMS RB比特流进行合并处理。
其中用户终端可以对从不同小区接收的相同 MBMS PTM业务采用两种 合并方式进行合并处理: 选择合并和软合并。 其中软合并中还可能包含部分 软合并情况。 选择合并是在无线链路控制(RLC, Radio Link Control )层执行 的, 软合并是在物理层执行的。 这两种合并方式应用在用户终端从不同小区 接收相同 MBMS PTM业务的小区间时间差不同的情况下,其软合并常常应用 于可以接收相同 MBMS PTM业务的不同小区间的时延差最大为一个发射时 间间隔(ΤΉ, Transmission Time Interval ) +1时隙 [即 1TTI + 1时隙]的情况, 其选择合并常常应用于比软合并所处不同小区间时延差更大的情况。
若发送相同 MBMS PTM业务的不同小区间选择合并或软合并可执行时, UTRAN应该向用户终端 UE下发邻小区的 MBMS邻小区信息, 该下发的 MBMS邻小区信息包含用于选择合并或软合并处理的邻小区的无线承载配置 信息。 同时当部分软合并应用时, UTRAN下发的 MBMS邻小区信息中还包 含物理层(U )合并调度信息, 用于指示 UE进行软合并邻小区和当前服务 小区发送的相同 MBMS PTM业务的具体时刻。
具有了 MBMS邻小区信息, UE就能够接收邻小区的 MTCH上承载的数 据信息, 而不用接收该邻小区的 MCCH上承载的控制信息。 当用户终端 UE 接收到 UTRAN下发的邻小区的 MBMS邻小区信息时, UE可以基于测量得 到的信号质量决定出合适的邻小区用于后续的选择合并或软合并处理。 如果 用户终端 UE决定了对邻小区进行选择合并或软合并处理时, 并且用户终端 UE此时具有相应邻小区的正确 MBMS邻小区信息, 用户终端就会对当前服 务小区和邻小区执行 MBMS PTM业务的选择合并或软合并处理。
其中为了支持 MBMS PTM业务的合并处理 , UTRAN需要周期性的下发 一个或多个 MBMS Neighboring cell PTM RB informatio 信息, 此信息即 MBMS邻小区点到多点无线承载信息, 以通知 UE 目前邻小区使用的用于软 合并或选择合并的一个或多个 MBMS业务的 PTM承载信息。
对于 MBMS业务,为保证资源的有效利用,在 3GPP规范中引入了 MBMS 优先频率层的概念, 其中 MBMS优先频率层即指为了有效的利用资源, UTRAN侧要求接收某种 MBMS业务的用户终端优先选择到某个频率层上, 在此频率层上 UTRAN发送此 MBMS业务, 每个 MBMS业务的优先频率层 具体由 UTRAN指示给用户终端。 其中接收 MBMS业务的用户终端要尽可能 的驻扎在 UTRAN所指示的优先频率层小区中。 此外为了保证用户终端的移 动性, 用户终端会在接收 MBMS业务的过程中进行小区重选处理。
其中在当前的研究中,处于 idle, CELL— PCH, URA_PCH和 CELL_FACH 状态,且正在接收 MTCH上承载的 MBMS PTM业务的 FDD终端是能够对正 在测量的同频小区进行识别的, 并将识别出的同频小区用于 MTCH上承载的 MBMS PTM业务合并处理。 此外, 如果当 FDD终端识别出的同频小区数目 超出 FDD终端的合并能力时,则需要将识别出的各个同频小区按照 MTCH的 接收质量进行排序, 以按照排序后的结果选择出 MTCH接收盾量较好的相应 同频小区用于 MTCH上承载的 MBMS PTM业务的合并处理。
目前 FDD终端对测量过程中的同频小区进行识别, 并将识别出的同频小 区用于 MTCH上承载的 MBMS PTM业务合并处理的主要实现过程如下:
1、 FDD终端接收 UTRAN指示的系统信息(包括系统测量控制信息, MBMS业务的邻小区 PTM信息等), 并对当前所在的服务小区的接收质量进 行测量(其中对当前服务小区的接收质量进行测量所得到的测量结果就是上 格中的 QqUaimeas和 Q kvmeas值,上述耒格中的 Qquakiiin和 Qrxlevmin值由 UTRAN 通过系统测量控制信息下发给 FDD 终端, 另外上述表格中, Pcompensation及其内包含的参数值是 FDD终端自身内部已知的);
2、 FDD终端根据上述测量得到的测量结果和 UTRAN下发的同频测量阀 值, 基于上述提及的同频测量准则, 对符合同频测量准则条件的同频小区进 行测量, 其结果包括:
所有同频小区都不符合同频测量准则, 所以对所有同频小区均不执行同 频测量; 或
所有同频小区都符合同频测量准则, 所以对所有同频小区均执行同频测 量; 或
只有部分同频小区符合同频测量准则, 所以只对符合同频测量准则的同 频小区执行同频测量;
3、 如果 FDD终端在对同频小区执行同频测量过程中正处于接收 MTCH 上承载的 MBMS PTM业务状态, 则 FDD终端会将测量的同频小区中未识别 的小区识别出,并将已识别的各个同频小区按照 MTCH的接收质量进行排序, 以按照排序后的结果选择出 MTCH接收质量较好的相应同频小区, 以用于 MTCH上承载的 MBMS PTM业务的合并处理。
但是在上述过程中, FDD终端识别出的同频小区仅仅是满足同频测量准 则要求的同频小区, 即 FDD终端只能将符合同频测量准则要求的同频小区识 别出, 以用于 MTCH上承载的 MBMS PTM业务合并处理; 但是通常情况下 UTRAN通过 MCCH控制信息指示给 FDD终端可用于 MTCH上承载的 MBMS PTM业务的同频小区最多可达 32个, 而 UTRAN指示的这些同频小区中会有部 分或全部同频小区由于不符合同频测量准则, 而无法被 FDD终端识别出以用 于 MTCH上承载的 MBMS PTM业务合并处理, 这样就会导致 FDD终端不能对 接收的 MBMS PTM业务执行有效的合并处理,从而会降低 MBMS PTM业务的 合并效果, 并会降低 MBMS业务的覆盖范围。 发明内容
本发明要解决的技术问题在于提出一种同频小区的识別方法及其业务合 并方法, 以用于使用户终端能够对同频小区中的广播組播业务执行有效的合 并处理, 并提高广播组播业务的合并效果和覆盖范围。
相应的, 本发明对应上述方法还提出了一种用户终端。
为解决上述问题, 本发明提出的技术方案如下:
一种同频小区的识别方法, 包括步骤: 处于接收广播组播业务状态的用 户终端获知参与自身接收的广播组播业务合并处理的同频小区; 以及对所获 知的各个同频小区执行同频测量处理, 以在获知的同频小区中识别出未识别 的同频小区。
一种用户终端, 包括: 同频小区获知单元, 用于处在接收广播组播业务 状态下时, 获知参与接收的广播组播业务合并处理的同频小区; 测量识别单 元, 用于对所迷同频小区获知单元所获知的各个同频小区执行同频测量处理, 以在获知的同频小区中识别出未识别的同频小区。 一种广播组播业务合并方法, 包括步骤: 处于接收广播组播业务状态的 用户终端对参与自身接收的广播组播业务合并处理的同频小区进行同频测 量; 用户终端在所测量的同频小区中选择同频小区; 以及基于所选择的同频 小区对自身接收的广播组播业务执行合并处理。
一种用户终端, 包括: 同频测量单元, 用于对参与用户终端接收的广播 组播业务合并处理的同频小区进行同频测量处理; 选择单元, 用于在所述同 频测量单元所测量的同频小区中选择同频小区; 业务合并单元, 用于基于所 述选择单元所选择的同频小区对用户终端接收的广播组播业务执行合并处 理。
一种同频小区的识别方法, 包括步驟: UTRAN下发确保参与用户终端接 收的广播组播业务合并处理的同频小区均符合同频测量准则的系统测量控制 信息; 用户终端根据 UTRAN 下发的系统测量控制信息, 对符合同频测量准 则的同频小区进行同频测量, 以在符合同频测量准则的同频小区中识别出未 识别的小区。
一种用户终端, 包括: 用于接收 UTRAN 下发的确保参与用户终端接收 的广播组播业务合并处理的同频小区均符合同频测量准则的系统测量控制信 息的单元; 用于才艮据接收到的系统测量控制信息, 对符合同频测量准则的同 频小区进行同频测量, 以在符合同频测量准则的同频小区中识别出未识别的 小区的单元。
一种广播组播业务合并方法, 包括步骤: UTRAN下发确保参与用户终 端接收的广播组播业务合并处理的同频小区均符合同频测量准则的系统测量 控制信息; 用户终端 >据 UTRAN下发的系统测量控制信息, 对符合同频测 量准则的同频小区进行同频测量, 以在符合同频测量准则的同频小区中识别 出未识别的小区; 用户终端根据预设的选择条件在基于符合同频测量准则的 同频小区识别出的同频小区中选择对应的同频小区; 以及基于选择的同频小 区对自身接收的广播组播业务执行合并处理。
一种用户终端, 包括: 用于接收 UTRAN 下发的确保参与用户终端接收 的广播组播业务合并处理的同频小区均符合同频测量准则的系统测量控制信 息的单元; 用于才 据接收到的系统测量控制信息, 对符合同频测量准则的同 频小区进行同频测量, 以在符合同频测量准则的同频小区中识别出未识别的 小区的单元; 用于根据预设的选择条件在识別出的同频小区中选择对应同频 小区的单元; 和用于基于选择的同频小区对用户终端接收的广播組播业务执 行合并处理的单元。
本发明能够达到的有益效果如下:
本发明方案通过处于接收广播组播业务状态的用户终端获知参与自身接 收的广播组播业务合并处理的同频小区 , 并对所获知的各个同频小区执行同 频测量处理, 以在获知的同频小区中识别出未识別的同频小区, 从而使得用 户终端后续可以基于在参与自身接收的广播组播业务合并处理的同频小区识 别出的同频小区中选取相应的同频小区, 并基于选择的同频小区对自身接收 的广播组播业务执行合并处理, 从而可以实现用户终端能够对多个同频小区 中的广播组播业务执行有效的合并处理, 因此提高了广播组播业务的合并效 果, 同时也提高了广播组播业务的覆盖范围。 附图说明
图 1为本发明同频小区的识别方法的主要实现原理流程图;
图 2为本发明用户终端的主要组成结构框图;
图 3为本发明用户终端中同频小区获知单元的具体组成结构框图; 图 4为本发明广播组播业务合并方法的主要实现原理流程图;
图 5为本发明广播组播业务合并方法的实施例处理流程图;
图 6为本发明提出的另一用户终端的主要組成结构框图;
图 7为本发明用户终端中选择单元具体组成结构的第一实施例框图; 图 8为本发明用户终端中选择单元具体组成结构的笫二实施例框图; 图 9为上述图 8中选择子单元的具体组成结构框图; 图 10为本发明提出的另外一种同频小区的识别方法的主要实现原理流程 图;
图 11为本发明提出的另一种广播组播业务合并方法的主要实现原理流程 图。 具体实施方式
本发明方案为避免现有技术中用户终端不能对从同频小区接收的 MBMS PTM业务执行同频小区间有效合并处理,从而可能会造成 MBMS业务合并效 果降低和 MBMS业务覆盖范围降低的问题,提出一种用户终端在接收 MBMS PTM 业务时对同频小区进行测量识别过程中, 使用户终端对参与接收的 MBMS PTM业务合并处理的同频小区进行测量识别, 而不必考虑同频测量准 则的约束,从而基于该同频小区识别方法,可以实现用户终端对接收的 MBMS PTM业务执行有效的业务合并处理, 以有利于 MBMS业务的覆盖。
下面将结合各个附图对本发明方案的主要实现原理及其具体实现方式进 行详细的阐迷。
请参照图 1 , 该图是本发明同频小区的识别方法的主要实现原理流程图, 其主要实现过程如下:
S10, 正在处于接收广播组播业务状态的用户终端 UE首先获知可能参与 自身接收的广播组播业务合并处理的同频小区;其中 UE可以根据 UTRAN在 广播组播业务控制信道上承载的控制信息来获知参与自身接收的广播组播业 务合并处理的同频小区;
S20, UE对上述所获知的各个同频小区分别执行同频测量处理, 以在上 述获知的同频小区中识别出未识别的同频小区。
其中上迷过程中所提及的广播组播业务包括但不限于为多媒体广播组播 点到多点业务(MBMS PTM业务);所提及的用户终端 UE包括但不限于为频 分双工模式终端(FDD终端)和时分双工模式终端(TDD终端)。
本发明基于上述提出的同频小区识别方法, 对应提出了一种用户终端设 备, 请参照图 2, 该图是本发明用户终端的主要组成结构框图, 其主要組成包 括同频小区获知单元 10和测量识别单元 20,其中这两部分组成结构的主要作 用如下:
同频小区获知单元 10, 主要用于用户终端正在处在接收广播组播业务状 态下时, 获知参与接收的广播组播业务合并处理的同频小区;
测量识别单元 20,主要用于对上述同频小区获知单元 10所获知的各个同 频小区分别执行同频测量处理, 以在同频小区获知单元 10获知的同频小区中 识别出未只别的同频小区。
请参照图 3,该图是本发明用户终端中同频小区获知单元的具体组成结构 框图, 其主要组成结构包括控制信息接收子单元 110和同频小区获知子单元 120, 该两部分组成结构的主要作用如下:
控制信息接收子单元 110,主要用于接收 UTRAN在广播组播业务控制信 道上承载的控制信息;
同频小区获知子单元 120,主要用于根据上述控制信息接收子单元 110接 收到的控制信息来获知参与用户终端接收的广播组播业务合并处理的同频小 区。
其中上述在用户终端中所提及的广播组播业务包括但不限于为多媒体广 播组播点到多点业务( MBMS PTM业务;);所述用户终端 UE可以工作于频分 双工模式( FDD ), 也可以工作于时分双工模式( TDD )。
本发明结合上迷提出的同频小区识别方法, 进而提出了一种广播组播业 务合并方法,请参照图 4, 该图是本发明广播组播业务合并方法的主要实现原 理流程图, 其主要实现过程如下:
S100, 处于接收广播组播业务状态的用户终端(如 TDD终端或 FDD终 端)对参与自身接收的广播组播业务合并处理的同频小区进行同频测量; 其中用户终端可以根据 UTRAN在广播组播业务控制信道上承载的控制 信息来获知参与自身接收的广播组播业务合并处理的同频小区, 并对获知的 同频小区执行同频测量处理; 此外用户终端还可以只对满足同频测量准则条件下的参与自身接收的广 播组播业务合并处理的同频小区进行同频测量。
S200, 用户终端在上述所测量的同频小区中选择同频小区;
其中在上述测量的同频小区中选择同频小区的过程可以但不限于为下述 过程:
预先在用户终端设备中设置一个同频小区选择条件;
用户终端根据所设置的选择条件在上述测量的同频小区中选择对应的同 频小区;
其中预先设置的这个同频小区选择条件可以但不限于为:
将用户终端上述所测量的同频小区按照其各自的广播組播业务信道的接 收质量进行排序;
并根据排序结果, 选择出 N个广播组播业务信道接收质量比较高的同频 小区用于后续对接收的广播组播业务执行合并处理, 其中 N为自然数。
S300, 用户终端基于上述所选择的同频小区对自身接收的广播组播业务 执行合并处理。
如上所述尤其对于 TDD模式终端而言,对于本发明方法提出的用户终端 对从同频小区间接收的广播组播业务进行合并处理的过程与现有技术中用户 终端对接收的 MBMS PTM业务执行合并处理的过程相比, TDD终端可以直 接在测量的同频小区中选取用千后续合并处理的同频小区, 而不要求这些选 择的同频小区必须是 TDD绛端已识别出的同频小区, TDD终端可以这样处理 的主要原因是由于目前在 UMTS系统中, 对于 TDD模式承载 MBMS业务信 息的 SCCPCH信道是在某一下行时隙发送的, 接收 MBMS业务的 TDD终端 可以直接在当前服务小区来获得其在同频邻小区的发送信息; 而 TDD同频小 区间是完全同步的, 并 TDD终端已知当前服务小区的定时信息, 并且通过当 前服务小区发送的邻小区信息获知邻小区的广播信道信息, 所以就可以通过 对同频邻小区的测量, 搜索到同频邻小区承载 MBMS业务信息的信道, 以执 行 BMS业务的合并处理。 当然, 用户终端也可以在测量的同频小区中识別出未识别的同频小区, 并基于已识别出的同频小区来选取对应的同频小区来用于对自身接收的广播 组播业务执行合并处理。
即, 上述用户终端在测量的同频小区中选择同频小区的具体处理过程可 以包括:
用户终端对所测量的同频小区中未识别的同频小区进行识别处理; 并在 巳识别出的同频小区中选择对应的同频小区。 其中在巳识别出的同频小区中 选择同频小区的过程可以但不限于为如下过程:
预先在用户终端设备中设置一个同频小区选择条件;
用户终端根据所设置的选择条件在上述已识别出的同频小区中选择对应 的同频小区;
其中预先设置的这个同频小区选择条件可以但不限于为:
将用户终端上述所识别出的同频小区按照其各自的广播组播业务信道的 接收质量进行排序;
并根据排序结果, 选择出 N个广播组播业务信道接收质量比较高的同频; 小区用于后续对接收的广播组播业务执行合并处理, 其中 N为自然数。
其中在上述整个过程中所提及的广播組播业务可以但不限于为多媒体广 播組播点到多点业务( MBMS PTM业务)。
下述以 TDD终端为例说明应用本发明方案后, 对从同频小区间接收的 MBMS PTM业务执行业务合并处理的主要实施过程:
1、 TDD终端接收到 UTRAN下发的系统信息, 并对当前服务小区的接收 ^量进行测量;
2、 正处于接收 MTCH上承载的 MBMS PTM业务的 TDD终端对参与自 身接收的 MBMS PTM业务合并处理的同频小区进行测量;
3、 TDD终端将测量的同频小区按照其各自 MTCH的接收质量进行排序, 并在排序后的各个同频小区中选择几个 MTCH接收 量比较高的同频小区用 于对自身接收的 MBMS PTM业务执行合并处理。 其中在上述步骤 2和 3中, TDD终端测量用于合并处理的同频小区以用 于对自身接收的 MBMS PTM业务执行合并处理有两种实现方式,一种是将测 量的同频小区完全识别出后再从其中选择用于业务合并的同频小区, 另一种 是对参与业务合并处理的同频小区进行测量后直接选择出用于业务合并的同 频小区, 而不用完全识别出其中未识别的同频小区。
请参照图 5, 该图是本发明广播組播业务合并方法的实施例处理流程图, 其主要实现过程如下:
S110,预先在用户终端 UE中设置一个选择条件;其中所设置的选择条件 可以但不限于为:
将基于用户终端所获知的参与接收的广播組播业务合并处理的同频小区 识别出的各个同频小区按照广播组播业务信道的接收质量进行排序;
并根据上述排序结果, 选择出 N个广播组播业务信道接收质量较高的同 频小区用于对接收的广播组播业务执行合并处理(其中 N为自然数);
S120, 正在处于接收广播组播业务状态的用户终端获知参与自身接收的 广播組播业务合并处理的同频小区; 其中用户终端可以根据 UTRAN在广播 组播业务控制信道上承载的控制信息来获知参与自身接收的广播组播业务合 并处理的同频小区;
S130, 用户终端对上述所获知的各个同频小区分别执行同频测量处理, 以在上述获知的同频小区中识别出未识别的同频小区;
S140, 用户终端根据上述预先设置的选择条件在基于所获知的同频小区 识别出的同频小区中选择对应的同频小区, 即根据上述选择条件, 会将识别 出的各个同频小区按照各自广播組播业务信道的接收质量进行排序, 并在排 序结果中选取中 N个广播组播业务信道接收质量较高的同频小区用于后续对 自身接收的广播组播业务执行合并处理;
S150, 用户终端基于上迷选择出的同频小区对自身接收的广播组播业务 执行合并处理。
其中上述过程中所提及的广播組播业务包括但不限于为多媒体广播组播 点到多点业务 ( MBMS PTM业务);所提及的用户终端 UE包括但不限于为频 分双工模式终端(FDD终端)和时分双工模式终端(TDD终端)。
基于本发明上述提出的广播组播业务合并方法, 本发明这里对应的还提 出了一种用户终端设备。请参照图 6,该图是本发明提出的另一用户终端的主 要组成结构框图,主要包括同频测量单元 100、选择单元 200和业务合并单元 300, 其这几部分的主要作用如下:
同频测量单元 100,用于对参与用户终端接收的广播组播业务合并处理的 同频小区进行同频测量处理;
选择单元 200,用于在上述同频测量单元 100所测量的同频小区中选择同 频小区;
业务合并单元 300,用于基于上述选择单元 200所选择的同频小区对用户 终端接收的广播组播业务执行合并处理。
请参照图 7,该图是本发明用户终端中选择单元具体组成结构的笫一实施 例框图, 选择单元 200主要包括第一选择条件设置子单元 2001和第一选择子 单元 2002, 这两个組成部分的主要作用如下:
第一选择条件设置子单元 2001 , 用于预先设置第一选择条件; 其中第一 选择条件设置子单元 2001中预先设置的第一选择条件可以但不限于为: 将同频测量单元 100所测量的同频小区按照各自其广播组播业 言道的 接^^量进行排序;
并才艮据排序结果, 选择出 Ν个广播组播业务信道接收质量较高的同频小 区, 其中 Ν为自然数;
第一选择子单元 2002,用于根据上述第一选择条件设置子单元 2001中预 先设置的第一选择条件在同频测量单元 100所测量的同频小区中选择对应的 同频小区, 即按照上述第一选择条件设置子单元 2001预先设置的选择条件, 第一选择子单元 2002在这里会将同频测量单元 100所测量的参与用户终端接 收的广播组播业务合并处理的同频小区按照各自的广播组播业务信道的接收 质量进行排序, 并根据排序结果选择出 Ν个广播組播业务信道接收质量比较 高的同频小区用于后续业务合并单元 300对接收的广播組播业务执行合并处 理。
请参照图 8,该图是本发明用户终端中选择单元具体组成结构的第二实施 例框图,选择单元 200主要包括识别子单元 2003和选择子单元 2004,这两个 组成部分的主要作用如下:
识别子单元 2003 , 用于对上述同频测量单元 100所测量的同频小区中未 识别的同频小区进行识别;
选择子单元 2004,用于在上述识别子单元 2003已识別出的同频小区中选 择对应的同频小区用于后续业务合并单元 300对接收的广播组播业务执行合 并处理。
请参照图 9, 该图是上述图 8中选择子单元的具体组成结构框图,其中选 择子单元 2004具体包括第二选择条件设置子单元和第二选择子单元, 这两个 部分的主要作用如下:
第二选择条件设置子单元, 用于预先设置第二选择条件; 其中第二选择 条件设置子单元中预先设置的第二选择条件可以但不限于为:
将识别子单元 2003新识别出的同频小区和原来已经识别出的同频小区按 照各自其广播组播业务信道的接收质量进行排序;
并根据排序结果, 选择出 N个广播组播业务信道接收质量较高的同频小 区, 其中 N为自然数;
第二选择子单元, 用于根据上述第二选择条件设置子单元预先设置的第 二选择条件在上述识别子单元 2003新识别出的同频小区和原来已经识别出的 同频小区中选择对应的同频小区, 即按照上述第二选择条件设置子单元预先 设置的选择条件, 第二选择子单元在这里会将识别子单元 2003新识别出的同 频小区和原来已经识别出的同频小区按照各自的广播组播业务信道的接收质 量进行排序, 并根据 #序结果选择出 N个广播组播业务信道接收质量比较高 的同频小区用于后续业务合并单元 300对接收的广播组播业务执行合并处理。
其中上述在用户终端中所提及的广播组播业务包括但不限于为多媒体广 播组播点到多点业务( MBMS PTM业务);所述用户终端 UE可以工作于频分 双工模式( FDD ), 也可以工作于时分双工模式( TDD )。
实施例 1 ,本发明方案应用在 FDD终端上实现对 MTCH上承载的 MBMS PTM业务执行有效合并处理的实施过程:
1、 FDD终端正在接收 MTCH上承载的 MBMS PTM业务过程中, 根据 MCCH信道上承载的控制信息获知参与自身接收的 MBMS PTM业务合并处 理的同频小区;
2、 FDD终端对上述获知的参与自身接收的 MBMS PTM业务合并处理的 同频小区分别执行同频测量, 而不考虑所获知的同频小区是否符合同频测量 准则的要求;
3、 处于接收 MTCH上承载的 MBMS PTM业务的 FDD终端对所获知的 同频小区中未识别的同频小区进行识别处理;
4、 FDD终端将在上述所获知的同频小区中识别出的同频小区按照其各自 的 MTCH接收质量进行排序,并基于排序结果选择出 MTCH接收质量较好的' 几个同频小区用于对 MTCH上承载的 MBMS PTM业务执行合并处理。
实施例 2,本发明方案应用在 TDD终端上实现对 MTCH上承载的 MBMS PTM业务执行有效合并处理的实施过程:
10、 TDD终端正在接收 MTCH上承载的 MBMS PTM业务过程中, 根据 MCCH信道上承载的控制信息获知参与自身接收的 MBMS PT 业务合并处 理的同频小区;
20、 TDD终端对上述获知的参与自身接收的 MBMS PTM业务合并处理 的同频小区分别执行同频测量, 而不考虑所获知的同频小区是否符合同频测 量准则的要求;
30、处于接收 MTCH上承载的 MBMS PTM业务的 TDD终端对所获知的 同频小区中未识别的同频小区进行识别处理;
40、 TDD终端将在上迷所获知的同频小区中识別出的同频小区按照其各 自的 MTCH接 4«量进行排序,并基于排序结果选择出 MTCH接收质量较好 的几个同频小区用于对 MTCH上承载的 MBMS PTM业务执行合并处理。 此外, 本发明还提出了另外一种同频小区识别方法, 同样也可以达到使 用户终端处于接收广播组播业务状态下时, 能够对参与接收的广播組播业务 合并处理的同频小区进行识别, 并基于该同频小区识别方法, 本发明提出对 应的广播组播业务合并方法, 以使用户终端能够在参与接收的广播组播业务 合并处理的同频小区识别出的同频小区中选择几个合适的同频小区用于对接 收的广播组播业务执行合并处理, 已达到使用户终端对自身接收的广播組播 业务执行有效合并处理的目的, 以增强广播组播业务的覆盖范围。
请参照图 10, 该图是本发明提出的另外一种同频小区的识别方法的主要 实现原理流程图, 其主要实现过程如下:
S500, UTRAN下发确保参与用户终端接收的广播组播业务合并处理的同 频小区均符合同频测量准则的系统测量控制信息;
S510, 用户终端根据 UTRAN下发的系统测量控制信息, 对符合同频测 量准则的同频小区进行同频测量, 以在符合同频测量准则的同频小区中识别 出未识别的小区。
其中, UTRAN可以在小区分层结构(HCS )不应用时, 向用户终端的当 前服务小区发送不包含同频测量阀值 ( Sintrasearch ) 的系统测量控制信息, 就可实现确保参与用户终端接收的广播组播业务合并处理的同频小区均符合 同频测量准则。
其中, UTRAN可以在小区分层结构(HCS )应用时, 通过向用户终端的 当前服务小区发送不包含同频测量阀值(Sintrasearch ) 的系统测量控制信息, ^发送不包含小区分层结构测量岡值(SearchHCS )的系统测量控制信息, 或 ^用户终端为 FDD终端时, 发送不包含异频测量阀值( Sintersearch ) 的系统 则量控制信息, 就可实现确保参与用户终端接收的广播組播业务合并处理的 频小区均符合同频测量准则。
此外, UTRAN还可以在 HCS不应用时, 通过向用户终端的当前服务小 发送包含同频测量阀值 (Sintrasearch ) 大于对用户终端的当前服务小区进 行 s准则( s准则具体参见现有技术描述)计算得到的接收质量值的系统测量 控制信息, 就可实现确保参与用户终端接收的广播组播业务合并处理的同频 小区均符合同频测量准则。
此外, UTRAN还可以在 HCS应用时, 通过向用户终端的当前服务小区 发送包含小区分层结构测量阀值(SearchHCS )大于对用户终端的当前服务小 区进行 S准则计算得到的接收廣量值的系统测量控制信息, 或在用户终端为 FDD终端时, 发送包含异频测量阀值(Sintersearch ) 大于对用户终端的当前 服务小区进行 S准则计算得到的接收质量值的系统测量控制信息, 就可实现 确保参与用户终端接收的广播組播业务合并处理的同频小区均符合同频测量 准则。
其中上述过程中所提及的广播组播业务包括但不限于为多媒体广播组播 点到多点业务( MBMS PTM业务);所提及的用户终端 UE包括但不限于为频 分双工模式终端( FDD终端)和时分双工模式终端( TDD终端)。
基于上述本发明提出的另一种同频小区识别方法 , 这里对应又提出了一 种广播组播业务合并方法, 请参照图 11, 该图是本发明提出的另一种广播组 播业务合并方法的主要实现原理流程图 , 其主要实现过程如下:
S600, 预先在用户终端中设置一个选择条件, 其中所设置的选择条件可 以但不限于为:
将基于符合同频测量准则的同频小区识別出的各个同频小区按照广播组 播业务信道的接收质量进行排序;
并根据上述排序结果, 选择出 N个广播组播业务信道接收质量较高的同 频小区用于对接收的广播组播业务执行合并处理(其中 N为自然数);
S610, UTRA 下发确保参与用户终端接收的广播组播业务合并处理的同 频小区均符合同频测量准则的系统测量控制信息;
S620, 用户终端根据 UTRAN下发的系统测量控制信息, 对符合同频测 量准则的同频小区进行同频测量, 以在符合同频测量准则的同频小区中识别 出未识别的小区; S630, 用户终端根据上述预先设置的选择条件在基于符合同频测量准则 的同频小区识别出的同频小区中选择对应的同频小区, 即根据上述选择条件, 会将识别出的各个同频小区按照各自广播组播业务信道的接收质量进行排 序, 并在排序结果中选取中 N个广播組播业务信道接收质量较高的同频小区 用于后续对自身接收的广播組播业务执行合并处理;
S640, 用户终端基于上述选择的同频小区对自身接收的广播组播业务执 行合并处理。
其中, UTRAN可以在 HCS不应用时, 向用户终端的当前服务小区发送 不包含 Sintrasearch的系统测量控制信息, 就可实现确保参与用户终端接收的 广播组播业务合并处理的同频小区均符合同频测量准则。
其中, UTRAN可以在 HCS应用时, 通过向用户终端的当前服务小区发 送不包含 Sintmsearch的系统测量控制信息,或发送不包含 SearchHCS的系统 测量控制信息 , 或在用户终端为 FDD终端时, 发送不包含 Sintersearch的系 统测量控制信息, 就可实现确保参与用户终端接收的广播组播业务合并处理 的同频小区均符合同频测量准则。
此外, UTRAN还可以在 HCS不应用时, 通过向用户终端的当前服务小 区发送包含 Sintrasearch大于对用户终端的当前服务小区进行 S准则 ( S准则 具体参见现有技术描述)计算得到的接收质量值的系统测量控制信息, 就可 实现确保参与用户终端接收的广播组播业务合并处理的同频小区均符合同频 测量准则。
此外, UTRAN还可以在 HCS应用时, 通过向用户终端的当前服务小区 发送包含 SearchHCS大于对用户终端的当前服务小区进行 S准则计算得到的 接收质量值的系统测量控制信息, 或在用户终端为 FDD终端时, 发送包含 Sintersearch大于对用户终端的当前服务小区进行 S准则计算得到的接收质量 值的系统测量控制信息, 就可实现确保参与用户终端接收的广播组播业务合 并处理的同频小区均符合同频测量准则。
其中上述过程中所提及的广播组播业务包括但不限于为多媒体广播组播 点到多点业务(MBMS PTM业务);所提及的用户终端 UE包括但不限于为频 分双工模式终端(FDD终端)和时分双工模式终端 (TDD终端 λ
显然, 本领域的技术人员可以对本发明进行各种改动和变型而不脱离本 发明的精神和范围。 这样, 倘若本发明的这些修改和变型属于本发明权利要 求及其等同技术的范围之内, 则本发明也意图包含这些改动和变型在内。

Claims

权 利 要 求
1、 一种同频小区的识别方法, 其特征在于, 包括步骤:
处于接收广播组播业务状态的用户终端获知参与自身接收的广播組播业 务合并处理的同频小区; 以及
对所获知的各个同频小区执行同频测量处理, 以在获知的同频小区中识 别出未识别的同频小区。
2、 如权利要求 1所述的方法, 其特征在于, 所述用户终端根据广播组播 业务控制信道上承载的控制信息获知同频小区。
3、 如权利要求 1所述的方法, 其特征在于, 所述广播组播业务为多媒体 广播组播点到多点业务。
4、 如权利要求 1所述的方法, 其特征在于, 所述用户终端为: 频分双工模式终端; 或
时分双工模式终端。
5、 一种用户终端, 其特征在于, 包括:
同频小区获知单元, 用于处在接收广播组播业务状态下时, 获知参与接 收的广播组播业务合并处理的同频小区;
测量识别单元, 用于对所述同频小区获知单元所获知的各个同频小区执 行同频测量处理, 以在获知的同频小区中识别出未识别的同频小区。
6、 如权利要求 5所述的用户终端, 其特征在于, 所述同频小区获知单元 具体包括:
控制信息接收子单元, 用于接收广播组播业务控制信道上承载的控制信 息; 和
同频小区获知子单元, 用于根据所述控制信息接收子单元接收到的控制 信息获知参与接收的广播组播业务合并处理的同频小区。
7、 一种广播组播业务合并方法, 其特征在于, 包括步骤:
处于接收广播组播业务状态的用户终端对参与自身接收的广播组播业务 合并处理的同频小区进行同频测量;
用户终端在所测量的同频小区中选择同频小区; 以及
基于所选择的同频小区对自身接收的广播组播业务执行合并处理。
8、 如权利要求 7所迷的方法, 其特征在于, 所述用户终端根据广播组播 业务控制信道上承载的控制信息获知参与自身接收的广播组播业务合并处理 的同频小区。
9、 如权利要求 7所迷的方法, 其特征在于, 所述用户终端对满足同频测 量准则条件下的参与自身接收的广播組播业务合并处理的同频小区进行同频 测量。
10、 如权利要求 7所述的方法, 其特征在于, 所述在测量的同频小区中 选择同频小区的过程具体包括:
预先设置选择奈件;
所述用户终端根据所述选择条件在所测量的同频小区中选择对应的同频 小区。
11、 如权利要求 10所述的方法, 其特征在于, 所述选择条件为: 将用户终端所测量的同频小区按照广播组播业务信道的接收质量进行排 序; 以及
才艮据排序结果, 选择出 N个广播組播业务信道接收质量高的同频小区, 所迷 N为自然数。
12、 如权利要求 7所述的方法, 其特征在于, 所述在测量的同频小区中 选择同频小区的过程具体包括:
所迷用户终端对所测量的同频小区中未识別的同频小区进行识别; 以及 在已识別出的同频小区中选择同频小区。
13、 如权利要求 12所述的方法, 其特征在于, 所述在已识别出的同频小 区中选择同频小区的过程包括:
预先设置选择条件;
所迷用户终端根据所述选择条件在已识别出的同频小区中选择对应的同 频小区。
14、 如权利要求 13所述的方法, 其特征在于, 所迷选择条件为: 将用户终端已识别出的同频小区按照广播组播业务信道的接收质量进行 排序; 以及
根据排序结果, 选择出 N个广播組播业务信道接收质量高的同频小区, 所述 N为自然数。
15、 如 7 ~ 14任一权利要求所述的方法, 其特征在于, 所述广播组播业 务为多媒体广播組播点到多点业务。
16、 如 7 ~ 14任一权利要求所述的方法, 其特征在于, 所述用户终端为: 频分双工模式终端; 或
时分双工模式终端。
17、 一种用户终端, 其特征在于, 包括:
同频测量单元, 用于对参与用户终端接收的广播组播业务合并处理的同 频小区进行同频测量处理;
选择单元, 用于在所迷同频测量单元所测量的同频小区中选择同频小区; 业务合并单元, 用于基于所述选择单元所选择的同频小区对用户终端接 收的广播组播业务执行合并处理。
18、 如权利要求 17所述的用户终端, 其特征在于, 所述选择单元具体包 括:
第一选择条件设置子单元, 用于预先设置第一选择条件;
第一选择子单元, 用于根据所述第一选择奈件设置子单元中设置的第一 逸择条件在所述同频测量单元所测量的同频小区中选择对应的同频小区。
19、 如权利要求 18所述的用户终端, 其特征在于, 所述第一选择条件设 置子单元预先设置的第一选择条件为:
将所述同频测量单元所测量的同频小区按照广播组播业务信道的接收质 量进行排序; 以及
根据排序结杲, 选择出 N个广播组播业务信道接收质量高的同频小区, 所述 N为自然数。
20、 如权利要求 17所述的用户终端, 其特征在于, 所述选择单元具体包 括:
识别子单元, 用于对所述同频测量单元所测量的同频小区中未识别的同 频小区进行识别;
选择子单元, 用于在所述识别子单元已识别出的同频小区中选择同频小 区。
21、 如权利要求 20所述的用户终端, 其特征在于, 所迷选择子单元具体 包括:
第二选择条件设置子单元, 用于预先设置第二选择条件;
第二选择子单元, 用于根据所述第二选择条件设置子单元预先设置的第 二选择条件在所述识别子单元已识别出的同频小区中选择对应的同频小区。
22、 如权利要求 21所述的用户终端, 其特征在于, 所述第二选择条件设 置子单元预先设置的第二选择条件为:
将所述识别子单元已识别出的同频小区按照广播组播业务信道的接收质 量进行排序; 以及
根据排序结果, 选择出 N个广播组播业务信道接收质量高的同频小区, 所述 N为自然数。
23、 一种同频小区的识别方法, 其特征在于, 包括步骤:
UTRAN下发确保参与用户终端接收的广播组播业务合并处理的同频小 区均符合同频测量准则的系统测量控制信息;
用户终端根据 UTRAN下发的系统测量控制信息, 对符合同频测量准则 的同频小区进行同频测量, 以在符合同频测量准则的同频小区中识別出未识 别的小区。
24、 如权利要求 23所述的方法, 其特征在于, UTRAN在小区分层结构 不应用时, 向用户终端的当前服务小区发送不包含同频测量阀值的系统测量 控制信息, 实现确保参与用户终端接收的广播组播业务合并处理的同频小区 均符合同频测量准则。
25、 如权利要求 23所述的方法, 其特征在于, UTRAN在小区分层结构 应用时, 通过:
向用户终端的当前服务小区发送不包含同频测量阀值的系统测量控制信 息; 或
发送不包含小区分层结构测量阀值的系统测量控制信息; 或
在用户终端为频分默工模式终端时 , 发送不包含异频测量阀值的系统测 量控制信息;
实现确保参与用户终端接收的广播组播业务合并处理的同频小区均符合 同频测量准则。
26、 如权利要求 23所述的方法, 其特征在于, UTRAN在小区分层结构 不应用时, 向用户终端的当前服务小区发送包含同频测量阀值大于对用户终 端的当前服务小区进行 S准则计算得到的接收质量值的系统测量控制信息, 实现确保参与用户终端接收的广播組播业务合并处理的同频小区均符合同频 测量准则。
27、 如权利要求 23所述的方法, 其特征在于, UTRAN在小区分层结构 应用时, 通过:
向用户终端的当前服务小区发送包含小区分层结构测量阀值大于对用户 终端的当前服务小区进行 S准则计算得到的接收质量值的系统测量控制信息; 或在用户终端为频分双工模式终端时, 发送包含异频测量阀值大于对用 户终端的当前服务小区进行 S准则计算得到的接收质量值的系统测量控制信 实现确保参与用户终端接收的广播组播业务合并处理的同频小区均符合 同频测量准则。
28、 如 23 ~ 27任一权利要求所述的方法, 其特征在于, 所迷广播组播业 务为多媒体广播组播点到多点业务。
29、如 23 ~ 27任一权利要求所述的方法,其特征在于, 所述用户终端为: 频分双工模式终端; 或
时分双工模式终端。
30、 一种用户终端, 其特征在于, 包括:
用于接收 UTRAN下发的确保参与用户终端接收的广播組播业务合并处 理的同频小区均符合同频测量准则的系统测量控制信息的单元;
用于根据接收到的系统测量控制信息, 对符合同频测量准则的同频小区 进行同频测量, 以在符合同频测量准则的同频小区中识别出未识别的小区的 单元。
31、 一种广播组播业务合并方法, 其特征在于, 包括步骤:
UTRAN 下发确保参与用户终端接收的广播组播业务合并处理的同频小 区均符合同频测量准则的系统测量控制信息;
用户终端根据 UTRAN下发的系统测量控制信息, 对符合同频测量准则 的同频小区进行同频测量, 以在符合同频测量准则的同频小区中识别出未识 别的小区;
用户终端根据预设的选择条件在基于符合同频测量准则的同频小区识别 出的同频小区中选择对应的同频小区; 以及
基于选择的同频小区对自身接收的广播组播业务执行合并处理。
32、 如权利要求 31所述的方法, 其特征在于, 所述选择条件为: 将基于符合同频测量准则的同频小区识别出的各个同频小区按照广播组 播业务信道的接收质量进行排序; 并
才艮据排序结果, 选择出 N个广播组播业务信道接收质量高的同频小区, 所述 N为自然数。
33、 如权利要求 31或 32所述的方法, 其特征在于, UTRAN在小区分层 结构不应用时, 向用户终端的当前服务小区发送不包含同频测量阀值的系统 测量控制信息, 实现确保参与用户终端接收的广播组播业务合并处理的同频 小区均符合同频测量准则。
34、 如权利要求 31或 32所述的方法, 其特征在于, UTRA 在小区分层 结构应用时, 通过:
向用户终端的当前服务小区发送不包含同频测量阀值的系统测量控制信 息; 或
发送不包含小区分层结构测量阀值的系统测量控制信息; 或
在用户终端为频分双工模式终端时, 发送不包含异频测量阀值的系统测 量控制信息;
实现确保参与用户终端接收的广播組播业务合并处理的同频小区均符合 同频测量准则。
35、 如权利要求 31或 32所述的方法, 其特征在于, UTRAN在小区分层 结构不应用时, 向用户终端的当前服务小区发送包含同频测量阀值大于对用 户终端的当前服务小区进行 S准则计算得到的接收质量值的系统测量控制信 息, 实现确保参与用户终端接收的广播组播业务合并处理的同频小区均符合 同频测量准则。
36、 如权利要求 31或 32所述的方法, 其特征在于, UTRAN在小区分层 结构应用时, 通过:
向用户终端的当前服务小区发送包含小区分层结构测量阀值大于对用户 终端的当前服务小区进行 S准则计算得到的接收质量值的系统测量控制信息; 或在用户终端为频分双工模式终端时, 发送包含异频测量阀值大于对用 户终端的当前服务小区进行 S准则计算得到的接收质量值的系统测量控制信 息;
实现确保参与用户终端接收的广播组播业务合并处理的同频小区均符合 同频测量准则。
37、 如权利要求 31或 32所述的方法, 其特征在于, 所述广播组播业务 为多媒体广播组播点到多点业务。
38、 如权利要求 31或 32所述的方法, 其特征在于, 所述用户终端为: 频分双工模式终端; 或
时分双工模式终端。
39、 一种用户终端, 其特征在于, 包栝:
用于接收 UTRAN 下发的确保参与用户终端接收的广播组播业务合并处 理的同频小区均符合同频测量准则的系统测量控制信息的单元;
用于根据接收到的系统测量控制信息, 对符合同频测量准则的同频小区 进行同频测量, 以在符合同频测量准则的同频小区中识别出未识别的小区的 单元;
用于根据预设的选择条件在识别出的同频小区中选择对应同频小区的单 元; 和
用于基于选择的同频小区对用户终端接收的广播组播业务执行合并处理 的单元。
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