WO2011082671A1 - 支持载波汇聚的通信系统及其系统信息更新方法和设备 - Google Patents

支持载波汇聚的通信系统及其系统信息更新方法和设备 Download PDF

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Publication number
WO2011082671A1
WO2011082671A1 PCT/CN2011/070043 CN2011070043W WO2011082671A1 WO 2011082671 A1 WO2011082671 A1 WO 2011082671A1 CN 2011070043 W CN2011070043 W CN 2011070043W WO 2011082671 A1 WO2011082671 A1 WO 2011082671A1
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WO
WIPO (PCT)
Prior art keywords
information
carrier
cell
system information
terminal
Prior art date
Application number
PCT/CN2011/070043
Other languages
English (en)
French (fr)
Inventor
魏宇欣
Original Assignee
索尼公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to EP11731672.9A priority Critical patent/EP2523516B1/en
Priority to KR1020127031286A priority patent/KR101453642B1/ko
Priority to RU2012133974/07A priority patent/RU2537789C2/ru
Priority to KR1020127020670A priority patent/KR101453635B1/ko
Priority to JP2012547442A priority patent/JP5440715B2/ja
Priority to BR122013003885-0A priority patent/BR122013003885A2/pt
Priority to EP21155937.2A priority patent/EP3846542B1/en
Priority to BR112012016323-0A priority patent/BR112012016323B1/pt
Priority to CA2784435A priority patent/CA2784435C/en
Priority to AU2011204695A priority patent/AU2011204695B2/en
Priority to EP23187508.9A priority patent/EP4258745A1/en
Priority to MX2015014716A priority patent/MX346237B/es
Application filed by 索尼公司 filed Critical 索尼公司
Priority to ES11731672T priority patent/ES2720951T3/es
Priority to US13/515,328 priority patent/US8526964B2/en
Priority to EP19185487.6A priority patent/EP3576463B1/en
Priority to MX2012007650A priority patent/MX2012007650A/es
Publication of WO2011082671A1 publication Critical patent/WO2011082671A1/zh
Priority to ZA2012/04934A priority patent/ZA201204934B/en
Priority to US13/690,938 priority patent/US8825068B2/en
Priority to US14/286,111 priority patent/US8929906B2/en
Priority to US14/524,364 priority patent/US9781746B2/en
Priority to US15/679,794 priority patent/US20170347381A1/en
Priority to US16/515,048 priority patent/US11051343B2/en
Priority to US17/322,914 priority patent/US11871221B2/en
Priority to US18/525,854 priority patent/US20240098803A1/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W68/00User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access, e.g. scheduled or random access
    • H04W74/08Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
    • H04W74/0833Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0028Variable division
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0032Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/08Access restriction or access information delivery, e.g. discovery data delivery
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/08Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/10Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/52Allocation or scheduling criteria for wireless resources based on load
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/535Allocation or scheduling criteria for wireless resources based on resource usage policies
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/02Arrangements for optimising operational condition
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/08Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel

Definitions

  • the present invention relates to the field of communications supporting carrier aggregation, and in particular to a communication system supporting carrier aggregation and a system information updating method and apparatus therefor. More specifically, it relates to a method, apparatus, and communication system including the apparatus for providing and receiving system information in a communication system supporting carrier aggregation. Background technique
  • the future LTE-A (Long Term Evolution-Advanced) system will support transmission bandwidths up to 100 MHz, while the maximum transmission bandwidth that can be supported in the LTE standard is 20 MHz, so multiple carrier units need to be aggregated to achieve more High transmission bandwidth.
  • Carrier Aggregation is a technology proposed by 3GPP to aggregate and transmit multiple carrier units in order to support the higher transmission bandwidth requirements of future mobile communication systems. The introduction of carrier aggregation technology brings new opportunities and challenges to the development of communication technology.
  • a method for providing system information in a communication system supporting carrier aggregation comprising: generating, when a change in system information of the communication system is generated, First information indicating information that the system information changes; determining a first cell of the terminal involved in the change of the system information, wherein the first cell is one of the cells to which the terminal is connected, and corresponds to the terminal a carrier unit that is in use to maintain a connection with a base station of the communication system; and transmits the first information to the terminal by the first cell.
  • a communication system supporting carrier aggregation comprising: information generating means, configured to generate first information including information for indicating a change of system information when the system information of the communication system changes; Determining a first cell of a terminal involved in a change in system information, wherein the first cell is one of cells connected to the terminal, and is in connection with a base station of the communication system being used by the terminal a carrier unit; and transmitting means, configured to send the third page to the terminal by using the first cell
  • a method for receiving system information in a communication system supporting carrier aggregation comprising: receiving, by the first cell, information including a change indicating that system information is changed First information, wherein the first cell corresponds to a carrier unit that the terminal is using to maintain a connection with the base station of the communication system; and parsing the first information to obtain information for indicating that the system information changes.
  • an apparatus for receiving system information in a communication system supporting carrier aggregation comprising: receiving means for receiving, by the first cell, an indication system First information of information that changes information, wherein the first cell corresponds to a carrier unit that is in use by the device to maintain a connection with a base station of the communication system; and control means is configured to parse the first information to The information for indicating that the system information has changed is obtained.
  • a method for transmitting and receiving system information in a communication system supporting carrier aggregation comprising: generating, when a change in system information of the communication system occurs, First information indicating information that the system information changes; determining a first cell of the terminal involved in the change of the system information, wherein the first cell is one of the cells to which the terminal is connected, and corresponds to the a carrier unit that is in use by the terminal to maintain a connection with a base station of the communication system; transmitting, by the first cell, the first information to the terminal; and receiving, by the terminal, the first information by using the first cell And parsing the first information by the terminal to obtain the information for indicating that the system information changes.
  • a communication system supports carrier aggregation and includes a first device for providing system information and a second device for receiving system information.
  • the first device includes: information generating means, configured to generate first information including information for indicating that the system information changes when the system information of the communication system changes; and the cell determining means, configured to determine a change of the system information a first cell of the terminal involved, wherein the first cell is one of cells connected to the terminal Corresponding to a carrier unit that is in use by the terminal to maintain a connection with a base station of the communication system; and a transmitting device, configured to send the first information to the terminal by using the first cell.
  • the second device includes: a receiving device, configured to receive the first information by using the first cell; and a control device, configured to parse the first information to obtain the information used to indicate that the system information changes.
  • embodiments of the present invention also provide a computer program for implementing the above method.
  • embodiments of the present invention also provide a computing product in the form of at least a computer readable medium having recorded thereon computer program code for implementing the above method.
  • FIG. 1 shows an exemplary structural diagram of a communication system supporting carrier aggregation
  • FIG. 2 is a schematic flowchart showing a method of providing information to a terminal in a carrier aggregation scenario to implement updating of system information according to an embodiment of the present invention
  • FIG. 3 is a schematic illustration of a particular cell of some of the terminals in the communication system shown in FIG. 1;
  • FIG. 4 and FIG. 5 respectively show exemplary wires for transmitting first information to a terminal through a first cell
  • FIG. 6 illustrates an exemplary method of receiving information by a terminal to implement updating of system information in a communication system supporting carrier aggregation in accordance with the embodiment illustrated in FIG. 2;
  • FIG. 7 shows an example of a receiving flow corresponding to the transmission flow example shown in FIG. 4;
  • FIG. 8 shows an example of a receiving flow corresponding to the transmission flow example shown in FIG. 5;
  • FIG. 9 illustrates an exemplary method of notifying an update of system information in a communication system supporting carrier aggregation, according to an embodiment of the present invention.
  • FIG. 10 illustrates an exemplary flow of a method of receiving a notification that a change in system information is received in a communication system supporting carrier aggregation according to an embodiment of the present invention;
  • FIG. 11 and FIG. 12 respectively show an exemplary flow of transmitting notification information to a terminal through a first cell
  • FIG. 13 shows a reception example corresponding to the transmission flow example shown in FIG. 11;
  • FIG. 14 shows an example of a receiving flow corresponding to the transmission flow example shown in FIG. 12;
  • FIG. 15 shows an exemplary flow of a method of providing updated system information in a communication system supporting carrier aggregation, in accordance with one embodiment of the present invention
  • FIG. 16 shows an exemplary flow of a method of receiving updated system information in a communication system supporting carrier aggregation, in accordance with an embodiment of the present invention
  • FIG. 17 shows an exemplary flow of a method of receiving updated system information in accordance with another embodiment of the present invention.
  • FIG. 18 illustrates an exemplary flow of a method of receiving updated system information in accordance with another embodiment of the present invention
  • FIG. 19 is a diagram showing a change in notification of system information by using extended known signaling as a first broadcast in a scenario of carrier aggregation;
  • FIG. 20 is a diagram showing the use of dedicated signaling to notify changes in system information in a scenario of carrier aggregation
  • 21 shows an exemplary flow of a method of providing updated system information in a communication system supporting carrier aggregation, in accordance with one embodiment of the present invention
  • 22 and 23 respectively illustrate an exemplary flow of transmitting first information including updated system information to a terminal through a first cell
  • 24 to 26 respectively illustrate an exemplary flow of receiving updated system information by a terminal in accordance with an embodiment of the present invention
  • FIG. 27 shows an exemplary flow of a method of providing system information in a context in which a carrier unit is to be added, in accordance with one embodiment of the present invention
  • 28 shows an exemplary flow of receiving system information by a terminal corresponding to the flow shown in FIG. 27;
  • 29 is a schematic flow chart of a method of providing system information related to a carrier segment in a scenario of adding a carrier segment for a currently used carrier unit, according to another embodiment of the present invention;
  • FIG. 30 shows a schematic diagram of a method of receiving system information related to a carrier segment in a scenario of adding a carrier segment for a currently used carrier unit, corresponding to the flow of FIG. 29;
  • FIG. 31 shows a schematic block diagram of an apparatus for providing system information in a communication system supporting carrier aggregation, in accordance with one embodiment of the present invention
  • FIG. 32 shows a schematic block diagram of an apparatus for receiving system information in a communication system supporting carrier aggregation, in accordance with an embodiment of the present invention
  • FIG. 33 is a schematic block diagram of an apparatus for notifying an update of system information in a communication system supporting carrier aggregation, according to an embodiment of the present invention.
  • FIG. 34 is a schematic block diagram of an apparatus for receiving an update notification of system information in a communication system supporting carrier aggregation according to an embodiment of the present invention
  • 35 shows a schematic block diagram of an apparatus for transmitting system information in the case where a carrier unit is to be added, according to an embodiment of the present invention
  • FIG. 36 shows a schematic block diagram of an apparatus for receiving system information in a case where a carrier unit is to be added, according to an embodiment of the present invention
  • FIG. 37 is a schematic diagram showing the terminal acquiring updated system information when a carrier unit is added in a carrier aggregation scenario
  • 38 is an exemplary block diagram showing the structure of a computer for implementing the present invention.
  • FIG. 1 illustrates an exemplary communication system that supports carrier aggregation.
  • the communication system includes a base station (e.g., e-NodeB) 101 and user terminals 102, 103, 104.
  • the carrier units supported by the communication system include CC 1, CC2, and CC3.
  • the terminal 102 can use the carrier units CC 1 and CC2, the terminal 103 can support the carrier units CC2 and CC3, and the terminal 104 can support the carrier units CC 1 , CC2 and CC3, that is, the terminals 102, 103 and 104 support carrier aggregation.
  • CA-S carrier aggregation.
  • the communication system may also include a (CA-NS) terminal 105 that does not support carrier aggregation, as shown in FIG. 1, the terminal 105 may only use the carrier unit CC1.
  • carrier unit CC 1 and carrier unit CC2 are continuous, and carrier unit CC3 is discontinuous with carrier units CC 1 and CC2.
  • a terminal supporting carrier aggregation includes both a terminal supporting carrier aggregation and a terminal not supporting carrier aggregation. It should be understood that this is merely exemplary and the invention is not limited to such a communication system. For example, the present invention is also applicable to: a communication system including only a base station and a terminal supporting carrier aggregation, a communication system including a base station, a relay station, and a user terminal, or another communication system supporting carrier aggregation. Not listed here.
  • UE User Equipment
  • terminal may include, but is not limited to, a mobile device used by a user to access a communication network, such as a mobile phone. (such as 102 and 103 in Figure 1), personal digital assistant or portable computer, and so on.
  • the system information of the communication system needs to be kept up to date.
  • the primary node of the communication system (such as the base station) needs to notify the terminal in some way.
  • a terminal can communicate with a master node of a communication system through a plurality of carrier units.
  • terminal 104 shown in Figure 1 can communicate with a base station via three carrier units CC 1, CC 2, CC3.
  • Different carrier units have different propagation characteristics, resulting in different coverage of different carrier units.
  • a terminal moves outside the coverage of a supported carrier unit and the system information is updated at this time, if the carrier unit is used, The corresponding cell sends new system information, which the terminal will not receive. In this way, the system information is incorrect when the terminal re-covers the coverage area of the carrier unit, thereby causing the carrier unit to be unavailable.
  • FIG. 2 is a schematic flow chart showing a method of providing information to a terminal in a carrier aggregation scenario to implement updating of system information, according to an embodiment of the present invention.
  • the method includes steps S202, S204, and S206.
  • step S202 when the system information of the communication system changes, information for indicating that the system information has changed is generated.
  • the information in this step is hereinafter referred to as the first information.
  • the communication system described herein is a communication system that supports carrier aggregation, such as the communication system shown in FIG.
  • the system information of the communication system may be judged by the master node (for example, the base station) of the communication system.
  • the information may be obtained from the corresponding configuration file of the master node (base station) to determine the system information. Has it changed?
  • step S204 a cell to be used when the first information is transmitted to the terminal involved in the change of the system information is determined.
  • a terminal can communicate with a master node of a communication system through a plurality of carrier units, each carrier unit corresponding to one cell.
  • a special cell which can be used to provide security input and non-access stratum (NAS) mobility information, etc.
  • NAS non-access stratum
  • the special cell Corresponding to a certain carrier unit that is being used by the terminal to remain connected to the primary node (such as a base station) of the communication system.
  • the primary node such as a base station
  • Each terminal is connected to a special cell, which corresponds to a certain carrier unit that is connected to the base station, and other carrier units supported by the terminal can be used as the uplink and/or of the terminal. Or downlink resources.
  • the cell corresponding to these other carrier units may also be referred to as a serving cell.
  • Figure 3 shows a particular cell of some of the terminals in the communication system shown in Figure 1.
  • the terminal 102 (the UE 102) supports the carrier units CC1 and CC2, where the cell corresponding to CC1 is a special cell of the terminal 102;
  • the terminal 103 (the UE 103) supports the carrier units CC2 and CC3, wherein the CC2
  • the corresponding cell is a special cell of the terminal 103.
  • the terminal 104 (the UE 104) supports the carrier units CC1, CC2 and CC3, wherein the cell corresponding to the CC3 is a special cell of the terminal 104.
  • the base station determines, according to the corresponding configuration file, which terminal/terminal (ie, the terminal involved in the change) should be notified of the change, and determines a special cell of each terminal as the A cell that transmits the first information to the terminal.
  • one of the one or more cells to which the terminal is connected may be selected by the base station as a special cell.
  • the base station may according to the corresponding configuration file or according to information fed back by the terminal (such as channel quality, signal strength, terminal location, etc.), according to a certain The criterion (by the special cell maintaining the connection with the base station) is selected from the one or more cells to which the terminal is connected as a special cell.
  • the base station may select a special cell of the terminal before transmitting the first information to the terminal, and notify the terminal of the selection result.
  • the base station may perform the selecting step periodically or only as needed (for example, when the terminal moves to the edge of the coverage of a certain cell or outside), notifying the terminal of the selection result and storing the corresponding profile in the base station. In this way, when the base station needs to determine the special cell of the terminal, it can look up in the corresponding configuration file.
  • the terminal may also select its special cell and then notify the base station.
  • the terminal may determine the connection status of each cell and the base station according to its own configuration, and select one of the cells that are connected to the base station as a special cell for subsequent transmission of system information.
  • the terminal may reset or select its special cell periodically or according to its mobility (such as when it moves to the edge of or outside the coverage of a certain cell) or other information (such as channel quality, signal strength, etc.) And transmitting information about the special cell to the base station.
  • the base station can save this information in the corresponding configuration file. In this way, when the base station needs to determine the special cell of the terminal, it can directly look up from the configuration file.
  • the base station may also send a request to the terminal to request the terminal to feed back information about the special cell of the terminal.
  • the special cell determined in step S204 is one of the cells to which the terminal is connected, corresponding to the carrier unit that the terminal is using to maintain connection with the primary node of the communication system.
  • the special cell is also referred to as the first cell hereinafter.
  • step S206 the first information is sent to the terminal through the first cell.
  • 4 and 5 illustrate exemplary wires for transmitting first information to a terminal through a first cell, respectively.
  • the step of transmitting the first information to the terminal by the first cell may include sub-steps S406-1 and S406-2.
  • sub-step S406-1 the first information generated from the previous step is encapsulated in dedicated signaling (hereinafter referred to as first dedicated signaling for brevity).
  • first dedicated signaling for brevity
  • sub-step S406-2 the first cell is sent to the terminal through the first cell.
  • Dedicated signaling since the signaling generated in the sub-step S406-1 is dedicated signaling, in sub-step S406-2, the dedicated signaling is transmitted through the dedicated channel of the first cell.
  • the transmission of dedicated signaling by a cell corresponding to a certain carrier unit means that the dedicated signaling is transmitted through a dedicated channel of the cell.
  • the dedicated channel may be referred to as a Dedicated Control Channel (DCCH), such as the DCCH channel in the LTE standard (e.g., ETSI TS 136 331 V8.5.0).
  • DCCH Dedicated Control Channel
  • the first information is sent to the terminal by using dedicated signaling (that is, the first information is sent through the dedicated channel of the first cell)
  • the signaling load on the entire system will increase significantly.
  • the method flow shown in Figure 5 can be used.
  • the step of transmitting the first information to the terminal by the first cell may include sub-steps S506-1 and S506-2.
  • sub-step S506-1 the first information generated from the previous step is encapsulated in broadcast signaling (hereinafter referred to as first broadcast signaling for brevity).
  • the first broadcast signaling is transmitted to the terminal through the broadcast channel of the first cell.
  • the broadcast channel may also be referred to as a Broadcast Control Channel (BCCH), such as the BCCH channel in the LTE standard (e.g., ETSI TS 136 331 V8.5.0).
  • BCCH Broadcast Control Channel
  • the signaling signaling of FIG. 5 can effectively reduce the signaling load of the system.
  • FIG. 2 shows an exemplary flow of transmitting information from a primary node (base station) of a communication system to a terminal.
  • 6 through 8 illustrate an exemplary flow of receiving information by a terminal.
  • FIG. 6 illustrates an exemplary method of receiving information by a terminal in a communication system supporting carrier aggregation in accordance with the embodiment shown in FIG. 2 to implement updating of system information.
  • the method includes steps S607 and S609.
  • step S607 the terminal receives the first information that is sent by the base station through the first cell and includes information for indicating that the system information changes.
  • the terminal receives the first information by listening to a carrier unit (which may be referred to as a first carrier unit) corresponding to the first cell.
  • a carrier unit which may be referred to as a first carrier unit
  • the first cell described herein is the same as in the above embodiment/example and will not be repeated here.
  • step S609 the terminal parses the received first information to obtain information for indicating that the system information has changed, so as to update the system information.
  • the terminal can know the change of the system information in time. Since the first cell (e.g., a special cell) is always connected to the base station, the situation that is not received is avoided. In addition, by using the first cell, the terminal does not need to listen to the cell corresponding to all the carrier units supported by the terminal, and the power consumption of the terminal can be greatly reduced, thereby prolonging the use time of the terminal battery.
  • the first cell e.g., a special cell
  • the transmission flow shown in FIG. 2 and the reception flow shown in FIG. 6 constitute a complete method flow for updating system information in a communication system supporting carrier aggregation.
  • Fig. 7 shows an example of a receiving flow corresponding to the transmission flow example shown in Fig. 4.
  • the first information is encapsulated in the dedicated signaling (first dedicated signaling) and transmitted to the terminal through the first cell. Therefore, in step S707, the terminal receives the first dedicated signaling encapsulated with the first information through its first cell. In other words, the terminal receives the first dedicated signaling by listening to the dedicated channel of its first cell. Similar to step S609, in step S709, the terminal parses the first dedicated signaling, thereby obtaining information for indicating that the system information has changed.
  • Fig. 8 shows an example of a receiving flow corresponding to the transmission flow example shown in Fig. 5.
  • the first information is encapsulated in the broadcast (the first wide order) and transmitted to the terminal through the broadcast channel of the first cell. Therefore, in step S807, the terminal receives the first broadcast signaling encapsulated with the first information through the broadcast channel of the first cell. In other words, the terminal receives the first broadcast signaling by listening to the broadcast channel of the first cell.
  • Step S809 is similar to steps S609 and S709 and will not be repeated here.
  • FIG. 4 and the reception of FIG. 7 and the transmission flow shown in FIG. 5 and the reception flow shown in FIG. 8 respectively constitute a method flow for performing system information update according to an example of the present invention. .
  • Figure 5 and Figure 8 can effectively reduce the signaling load of the system by using a wide-ranging method.
  • the terminal does not need to monitor the cell corresponding to all the carrier units it supports, and the power consumption of the terminal can be greatly reduced, thereby prolonging the use time of the terminal battery.
  • the foregoing first information may only include information for indicating that the system information changes, in which case, on the network side, the base station may also send updated system information through a subsequent sending process. On the terminal side, the updated system information can be received through a subsequent receiving process, which will be described below.
  • the foregoing first information may further include updated system information, that is, On the network side, the base station directly sends the updated system information to the terminal through the first cell; and on the terminal side, the terminal can obtain updated system information by parsing the first information, and these processes will also be described below.
  • the first information described above may further include information (also referred to as third information) for indicating whether a change in system information affects a carrier aggregation transmission.
  • third information may indicate which part of the communication system the system information has changed, and the terminal may determine whether the change has an impact on the carrier aggregation transmission.
  • the network side e.g., base station
  • the network side notifies the terminal system that the information has changed through the first cell.
  • the first cell described herein is the same as in the above embodiment/example.
  • the method includes steps S902, S904, and S906.
  • step S906 when the system information of the communication system changes, notification information for indicating that the system information has changed is generated.
  • the notification information here only includes information for indicating that the system information has changed.
  • the notification information can be regarded as an example of the above first information.
  • the communication system described herein is a communication system supporting carrier aggregation, such as the communication system shown in Fig. 1.
  • the system information of the communication system may be determined by the master node (for example, the base station) of the communication system.
  • related information may be obtained from a corresponding configuration file of the master node (base station) to determine whether system information occurs. Change.
  • step S904 a cell to be used when transmitting the notification information to the terminal involved in the change of the system information is determined.
  • the base station determines, according to the corresponding configuration file, which terminal/terminal (ie, the terminal involved in the change) should be notified of the change, and determines a special cell of each terminal as being used to send to the terminal.
  • the cell of the first information The method in the example described above can be used to determine the special cell of the terminal, which is not repeated here.
  • the cell determined in this step 904 is one of the cells to which the terminal is connected, corresponding to the carrier unit that the terminal is using to maintain a connection with the primary node of the communication system, also referred to as the first A cell or a special cell. [89] Then, in step S906, the notification information is transmitted to the terminal through the first cell.
  • the terminal can be prevented from receiving the notification, so that the change of the system information can be notified to the terminal in time.
  • the base station does not have to send notification information to the terminal through each cell of the terminal, thereby reducing the signaling burden of the system.
  • FIG. 10 shows an exemplary flow of a method of receiving a notification that a change in system information is received in a communication system supporting carrier aggregation according to an embodiment of the present invention.
  • the terminal of the communication system receives the notification information transmitted by the base station for indicating a change in the system information by listening to the first cell.
  • the first cell described herein is the same as in the above embodiment/example.
  • the method includes steps S1007 and S1009.
  • step S1007 the terminal receives, by the base station, the notification information, which is sent by the first cell, for indicating that the system information has changed.
  • the terminal receives the notification information by listening to the carrier unit (also referred to as the first carrier unit) corresponding to the first cell.
  • step S1009 the terminal parses the received notification information to know that the system information has changed.
  • the terminal can know the change of the system information in time, thereby facilitating the update of the subsequent system information. Since the first cell (e.g., a special cell) is always connected to the base station, the case where the notification is not received is avoided. In addition, by using the first cell, the terminal does not need to listen to the cell corresponding to all the carrier units supported by the terminal, and the power consumption of the terminal can be greatly reduced, thereby prolonging the use time of the terminal battery.
  • the first cell e.g., a special cell
  • the flow of the transmission notification shown in FIG. 9 and the flow of the reception notification shown in FIG. 10 constitute a flow of a method of notifying the update of the system information in the communication system supporting the carrier aggregation.
  • 11 and 12 respectively show an exemplary flow of transmitting notification information to a terminal through a first cell.
  • the step of transmitting the notification information to the terminal by the first cell may include sub-steps S1106-1 and S1106-2.
  • sub-step S1106-1 the notification information generated from the previous step is encapsulated in dedicated signaling (hereinafter referred to as first dedicated signaling for brevity).
  • first dedicated signaling for brevity
  • sub-step S1106-2 the first dedicated signaling is sent to the terminal by the first cell.
  • the signaling generated in the sub-step S1106-1 is dedicated signaling
  • the sub-step S1106-2 the special-channel is transmitted through the dedicated channel of the first cell. Signaled.
  • the notification information is sent to the terminal by using dedicated signaling (that is, the notification information is sent through the dedicated channel of the first cell).
  • the signaling load brought by the entire system will increase significantly.
  • the method flow shown in Fig. 12 can be employed.
  • the step of transmitting the notification information to the terminal by the first cell may include sub-steps S1206-1 and S1206-2.
  • sub-step S1206-1 the notification information generated from the previous step is encapsulated in broadcast signaling (hereinafter referred to as first broadcast signaling for brevity).
  • sub-step S1206-2 the first wide command is transmitted to the terminal through the broadcast channel of the first cell.
  • the signaling load of the system can be effectively reduced by using the wide-definition method of FIG.
  • Fig. 13 shows an example of a receiving flow corresponding to the transmission flow example shown in Fig. 11.
  • the first information is encapsulated in the dedicated signaling (first dedicated signaling) and sent to the terminal through the first cell. Therefore, in step S1307, the terminal receives the first dedicated signaling encapsulated with the notification information by the carrier unit (also referred to as the first carrier unit) corresponding to the first cell. In other words, the terminal receives the first dedicated signaling by listening to the dedicated channel of its first cell. Similar to step S1009, in step S1309, the terminal analyzes the first dedicated signaling to obtain notification information for indicating that the system information has changed, thereby obtaining a change in system information.
  • the carrier unit also referred to as the first carrier unit
  • Fig. 14 shows an example of a receiving flow corresponding to the transmission flow example shown in Fig. 12.
  • the first information is sent to the terminal through the broadcast channel of the first cell in the broadcast command (first command). Therefore, in step S1407, the terminal receives the first broadcast signaling encapsulated with the notification information through the broadcast channel of the first cell. In other words, the terminal receives the first dedicated signaling by listening to the broadcast channel of the first cell.
  • Step S1409 is similar to steps S1009 and S1309 and will not be repeated here.
  • the transmission flow shown in FIG. 11 and the reception flow shown in FIG. 13, the transmission flow shown in FIG. 12, and the reception flow shown in FIG. 14 respectively constitute a flow of a method for updating notification system information according to an example of the present invention. .
  • Fig. 12 and Fig. 14 utilize an extensive manner to effectively reduce the signaling load of the system.
  • the terminal does not need to listen to the cell corresponding to all the carrier units it supports, which can greatly reduce the work of the terminal. Consumption, thereby extending the battery life of the terminal.
  • the dedicated signaling and/or broadcast signaling described above and hereinafter may be a newly defined signaling or an extension to known signaling.
  • the present invention does not limit the format thereof.
  • FIG. 15 shows an exemplary flow of a method of providing updated system information in a communication system supporting carrier aggregation, in accordance with one embodiment of the present invention.
  • the method shown in Fig. 15 is based on the method flow shown in Fig. 9, Fig. 11, or Fig. 12, except that the method shown in Fig. 15 further includes a process for transmitting updated system information.
  • the method includes steps S1502, S1504, S1506, S1512, and S1514.
  • Steps S1502, S1504, S1506 may be similar to the corresponding steps in the embodiment or example shown in Fig. 9, Fig. 11, or Fig. 12, and are not repeated here.
  • step S1512 the network side (e.g., base station) of the communication system encapsulates the updated system information in a wide order (also referred to as a second order). Then, in step S1514, the second broadcast signaling is transmitted to the terminal through the broadcast channel of the cell (also referred to as the second cell) corresponding to the carrier unit involved in the change of the system information.
  • a wide order also referred to as a second order
  • the second broadcast signaling is transmitted to the terminal through the broadcast channel of the cell (also referred to as the second cell) corresponding to the carrier unit involved in the change of the system information.
  • FIG. 16 shows an exemplary flow of a method of receiving updated system information in a communication system supporting carrier aggregation, in accordance with an embodiment of the present invention.
  • the method shown in Fig. 16 is based on the method flow shown in Fig. 10, Fig. 13, or Fig. 14, except that the method shown in Fig. 16 further includes a process for receiving updated system information.
  • the method includes steps S1607, S1609, and S1611.
  • Steps S1607, S1609 may be similar to the corresponding steps in the embodiment or example shown in Fig. 10, Fig. 13, or Fig. 14, and will not be repeated here.
  • the network side (e.g., base station) of the communication system encapsulates the updated system information in the second broadcast signaling and transmits the second broadcast signal through the broadcast channel of the second cell.
  • the process of step S1611 is performed, that is, all the carriers supported by the base station are started to be monitored.
  • Corresponding broadcast channels of all cells thereby receiving the second broadcast signaling. After receiving the second broadcast signaling, it is parsed to obtain updated system information.
  • FIG. 15 and the reception flow of FIG. 16 constitute a support for carrier aggregation The process of updating system information in the communication system.
  • the network side (base station) of the communication system transmits the updated system information through the second cell corresponding to the involved carrier unit, and the base station needs to listen to all the carrier units supported by the base station. Corresponding to all cells.
  • This method does not require sending additional information in the process of sending notification information (steps S1502-S1506). It simplifies the process of notifying system information changes.
  • FIG. 17 illustrates an exemplary flow of a method of receiving updated system information in accordance with another embodiment of the present invention.
  • the notification information may further include information (also referred to as second information) for identifying a carrier unit involved in the change of the system information.
  • the second information is obtained by analyzing the notification information in step S1709.
  • the broadcast channel of the cell corresponding to the carrier component involved is monitored according to the second information, thereby obtaining updated system information.
  • the terminal does not need to listen to the broadcast channel of all the cells corresponding to all the carrier units it supports, and the power consumption of the terminal can be greatly reduced compared with the method of FIG. 16, thereby prolonging the use time of the terminal battery.
  • FIG. 18 illustrates an exemplary flow of a method of receiving updated system information in accordance with another embodiment of the present invention.
  • information indicating whether the change in system information affects the carrier aggregation transmission may also be included in the notification information.
  • the third information may indicate which part of the communication system the system information has changed, and the terminal may determine whether it has an influence on the carrier aggregation transmission.
  • the terminal receives the notification information including the third information and the information for indicating the change of the system information in step S1807
  • the third information may be obtained by parsing the notification information in step 1809. Then in step S1810, the terminal decides whether to receive the updated system information based on the third information.
  • Step S1811 can be the same as step S1711 in the above step S1611, and is not repeated here.
  • the updated system information is encapsulated in the second broadcast signaling and transmitted/received through the broadcast channel of the second cell.
  • the updated system information may also be encapsulated in dedicated signaling (also referred to as third dedicated signaling) and transmitted/received through a dedicated channel of the second cell.
  • the notification information includes information (second information) for identifying a carrier unit involved in the change of the system information.
  • the terminal obtains the second information by parsing the notification information, and monitors the dedicated channel of the cell corresponding to the carrier component according to the second information, thereby obtaining an updated system. information.
  • the terminal does not need to listen to other cells corresponding to other carrier units supported by the terminal, which can greatly reduce the power consumption of the terminal, thereby extending the usage time of the terminal battery.
  • the above broadcast signaling or dedicated signaling may be a newly defined signaling or an extension to known signaling.
  • the first broadcast signaling may be an extension to a Paging message or a System Information Block (SIB1) message in LTE Release 8.
  • SIB1 System Information Block
  • the content of the second information and/or the third information may be added to the Paging message or the SIB1 message.
  • two indicators may be added to the Paging message and the SIB1 information, such as a first indicator (e.g., may be represented as SystemInfoUpdateCCIndicator) and a second indicator (e.g., may be represented as CriticalSystemlnfoIndicator).
  • the first indicator includes the second information, that is, the system information for identifying which specific carrier unit is changed, and the second indicator includes the third information, that is, whether the change of the system information is affected by the carrier aggregation transmission ( For example, it may indicate which part of the system information is changed, and the terminal may determine whether to affect the carrier aggregation transmission according to the information.
  • Figure 19 is a diagram showing the change of the system information using the extended Paging message or the SIB1 message as the first broadcast signaling in the scenario of carrier aggregation. As shown in FIG. 19, the extended Paging message or the SIB1 message is transmitted through the first cell of the terminal 102 (the cell corresponding to the CC 1), and then the updated system information is transmitted through the cell corresponding to the CC2.
  • the first broadcast signaling can also be a newly defined signaling.
  • the first dedicated signaling may be newly defined signaling or may be an extension to known signaling. Similar to the first broadcast signaling, the content of the second information and/or the third information may be included in the first dedicated signaling.
  • the first dedicated signaling may include two indicators, such as a first indicator (for example, it may be expressed as
  • FIG. 20 is a diagram showing the use of first dedicated signaling to notify changes in system information in a scenario of carrier aggregation. As shown in FIG.
  • the first dedicated signaling (shown as a SystemInfoUpdate message in the figure) is transmitted through a dedicated channel of the first cell (the cell corresponding to the CC 1) of the terminal 102, and then transmitted through the cell corresponding to the CC2. Updated system information.
  • FIG. 21 shows an exemplary flow of a method of providing updated system information in a communication system supporting carrier aggregation, in accordance with one embodiment of the present invention.
  • the network side (base station) of the communication system transmits updated system information to the terminal through the first cell (special cell) of the terminal.
  • the method includes steps S2102, S2104, and S2106.
  • step S2102 when the system information of the trusted system changes, the first information is generated. Unlike the embodiment shown in Fig. 2, the first information includes updated system information in addition to information for indicating changes in system information.
  • the master node eg, the base station
  • the master node eg, the base station
  • the master node may be obtained from a corresponding configuration file of the master node (base station).
  • the updated system information can also be obtained from the corresponding configuration file of the base station.
  • step S2104 a cell to be used when the first information is transmitted to the terminal involved in the change of the system information, that is, the first cell is determined.
  • the first cell described herein is the same as the previous embodiment and will not be repeated.
  • the base station determines, according to the corresponding configuration file, which terminal/terminal (ie, the terminal involved in the change) should be notified of the change, and determines a special cell of each terminal as the A cell that transmits the first information to the terminal.
  • the method in the example described above can be used to determine the particular cell of the terminal, which is not repeated here.
  • step S2106 the first information is transmitted to the terminal through the first cell.
  • the first cell is always connected to the primary node (e.g., base station) of the system, by transmitting the updated system information directly to the terminal by using the above method, it is possible to avoid the situation that the terminal cannot receive.
  • the primary node e.g., base station
  • FIG. 22 and FIG. 23 respectively show that the system including the update is transmitted to the terminal through the first cell.
  • the step of transmitting the first information to the terminal by the first cell may include sub-steps S2206-1 and S2206-2.
  • the first information including the updated system information generated in step S2102 is encapsulated in a dedicated signal (also referred to as first dedicated signaling).
  • the first dedicated signal is transmitted to the terminal through the first cell, i.e., the dedicated signaling is transmitted through the dedicated channel of the first cell.
  • the step of transmitting the first information to the terminal by the first cell may include sub-steps S2306-1 and S2306-2.
  • the first information including the updated system information generated in step S2102 is encapsulated in a broadcast signal (also referred to as first broadcast signaling).
  • the first broadcast signaling is transmitted to the terminal through the broadcast channel of the first cell.
  • the signaling load of the system can be effectively reduced by using the broadcast signaling method of FIG.
  • 24 to 26 show an exemplary flow of receiving updated system information by a terminal.
  • FIG. 24 shows an exemplary method of receiving updated system information by a terminal in a communication system supporting carrier aggregation in accordance with the embodiment shown in FIG.
  • the method includes steps S2407 and S2409.
  • step S2407 the terminal receives the first information that the base station transmits through the first cell, including information for indicating that the system information has changed and updated system information.
  • the terminal receives the first information by listening to a carrier unit (which may be referred to as a first carrier unit) corresponding to the first cell.
  • step S2409 the terminal parses the received first information to learn that the system information changes, and obtains updated system information.
  • the terminal can obtain updated system information in time. Since the first cell (e.g., a special cell) is always connected to the base station, the situation that is not received is avoided. In addition, by using the first cell, the terminal does not need to monitor the cell corresponding to other carrier units supported by the terminal, which can greatly reduce the power consumption of the terminal, thereby prolonging the use time of the terminal battery.
  • the first cell e.g., a special cell
  • FIG. 25 shows an example of a receiving flow corresponding to the transmission flow example shown in FIG. 22.
  • the first information is encapsulated in the dedicated signaling (first dedicated signaling) and sent to the terminal through the first cell. Therefore, in step S2507, the terminal receives the first dedicated signaling encapsulated with the first information through its first cell. In other words, the terminal receives the first dedicated signaling by listening to the dedicated channel of its first cell. Similar to step S2409, in step S2509, the terminal parses the first dedicated signaling, thereby obtaining updated system information.
  • Fig. 26 shows an example of a reception flow corresponding to the transmission flow example shown in Fig. 23.
  • the first information is sent to the terminal through the broadcast channel of the first cell in the block (1st command). Therefore, in step S2607, the terminal receives the first broadcast signaling encapsulated with the first information through the broadcast channel of the first cell. In other words, the terminal receives the first broadcast signaling by listening to the broadcast channel of the first cell.
  • Step S2609 is similar to steps S2409 and S2509 and will not be repeated here.
  • the transmission flow shown in FIG. 22 and the reception flow shown in FIG. 25, the transmission flow shown in FIG. 23, and the reception flow shown in FIG. 26 respectively constitute a flow of a method for performing system information update according to an example of the present invention. .
  • Fig. 23 and Fig. 26 can effectively reduce the signaling load of the system by using the wide-range command.
  • the terminal does not need to monitor the cell corresponding to other carrier units it supports, which can greatly reduce the power consumption of the terminal, thereby prolonging the use time of the terminal battery.
  • changes in system information described in the above embodiments/examples and hereinafter may include changes in any system information due to changes in the configuration and architecture of the system.
  • the changes may include, but are not limited to, adding a carrier segment, adding an extension carrier, enabling (adding) a new carrier unit, and the like to a carrier unit that is in an active state. Therefore, updated system information can include any system information related to these changes.
  • the updated system information may include configuration information related to the carrier segment; when an extension carrier is added for a terminal, the updated system information may include The extension carrier related configuration information; when the new carrier unit is enabled (added), the updated system information may include configuration information related to the carrier unit.
  • 27 shows an exemplary flow of a method of providing system information in a context in which a carrier unit is to be added, in accordance with one embodiment of the present invention.
  • the method includes steps S2702, S2704, S2706, and S2708.
  • the first information is generated.
  • the first information may include information indicating a case where a carrier unit is to be added and system information related to a carrier unit to be added.
  • step S2704 it is determined that the cell to be used for transmitting the first information to the terminal involved in the carrier unit to be added, that is, the first cell.
  • the first cell described herein is the same as the foregoing embodiment and will not be repeated.
  • the base station determines a special cell of the terminal according to the corresponding configuration file as a cell for transmitting the first information to the terminal.
  • the method in the foregoing example can be used to determine the special cell of the terminal, which is not repeated here.
  • step S2706 the first information is encapsulated in dedicated signaling (also referred to as second dedicated signaling). Then, in step S2708, the second dedicated signaling is transmitted to the terminal through the first cell, that is, the second dedicated signaling is transmitted through the dedicated channel of the first cell.
  • dedicated signaling also referred to as second dedicated signaling
  • the system information related to the carrier unit to be added is sent to the terminal in time by using the foregoing method, so that the terminal can avoid the situation that the terminal cannot receive. .
  • Fig. 28 shows an exemplary flow of receiving system information by the terminal corresponding to the transmission flow shown in Fig. 27.
  • the method includes steps S2807, S2809, and S2811.
  • step S2807 the terminal receives the second dedicated signal through the dedicated channel of the first cell.
  • step S2809 the terminal parses the received second dedicated signaling, thereby knowing that the carrier unit is to be added, and obtains system information related to the carrier unit to be added.
  • step S2811 the terminal configures the carrier unit to be added according to the received system information, thereby activating the carrier unit.
  • the terminal can obtain updated system information in time. Since the first cell (e.g., a special cell) is always connected to the base station, the situation that is not received is avoided. In addition, due to the use of dedicated signaling, terminals that do not support carrier aggregation will not receive these messages.
  • the first cell e.g., a special cell
  • the transmission flow shown in Fig. 27 and the reception flow shown in Fig. 28 constitute a method of transmitting system information in a communication system supporting carrier aggregation.
  • the carrier unit to be added may be an extension carrier.
  • step S2706 may include: encapsulating configuration information related to the extension carrier in the second dedicated signaling. And after receiving the second dedicated signaling encapsulated with the configuration information related to the extended carrier, the terminal may obtain the configuration information by parsing the second dedicated signaling, and configure the extended carrier according to the configuration information. .
  • the carrier unit to be added may further include a carrier segment attached to the carrier unit to be added.
  • the network side (base station) of the communication system can also transmit configuration information related to the carrier segment to the terminal through the first cell.
  • the configuration information associated with the carrier segment can be encapsulated in the second dedicated signaling along with the system information associated with the carrier unit to be added.
  • the terminal can receive the configuration information related to the carrier through the dedicated channel of the first cell, and configure the carrier segment according to the configuration information. If the configuration information related to the carrier segment is encapsulated in the second dedicated signaling together with the system information related to the carrier unit to be added, the terminal may further obtain configuration information related to the carrier segment by parsing the second dedicated signaling. And configuring the carrier segment according to the configuration information.
  • system information associated with a carrier unit to be added may include transmission bandwidth configuration information and frequency band indication information associated with the carrier unit to be added.
  • the system information related to the carrier unit to be added may further include the The uplink carrier frequency, the uplink transmission bandwidth, and the configuration information of each uplink channel of the carrier unit to be added; when the carrier unit to be added is used for downlink transmission, the system information related to the carrier unit to be added may further include Configuration information of each downlink channel of the carrier unit to be added.
  • the system information may take the form of system information in LTE.
  • the system information is divided into a primary information block MIB and one or more system information blocks SIB.
  • the MIB contains some of the most important information and related parameters for obtaining other important information from the cell, such as downlink bandwidth configuration, physical hybrid automatic request retransmission indication channel configuration, and so on.
  • the information included in the SIB includes whether the terminal is allowed to access a certain cell, terminal radio resource configuration information, cell reselection information, and the like.
  • the second dedicated signaling may be a newly defined signaling or an extension to known signaling.
  • the second dedicated signaling may be an extension of a radio resource control connection reconfiguration message (such as an RRCConnectionReconfiguration message).
  • step S2706 includes: encapsulating the first information in the radio resource control connection reconfiguration. In the message. With known signaling, it is possible to avoid redefining new message structures.
  • the extension of the foregoing radio resource control connection reconfiguration message may include system information such as MIB, SIB1, SIB2, and the like.
  • the MIB may include:
  • dl-Band width Transmission bandwidth configuration information, number of RBs on the downlink.
  • phich-Config PHICH (Physical Hybrid-Required Retransmission Indicator Channel) channel configuration information.
  • SIB1 may include: freqBandlndicator: band indicator
  • the SIB2 may include:
  • ul-CarrierFreq Uplink carrier frequency.
  • ul-Bandwidth The uplink transmission bandwidth, that is, the number of RBs in the uplink.
  • rach-Config RACH (Random Access C h an n el , ⁇ M : . ⁇ channel) channel configuration information.
  • prach-Config PRACH (Physical Random Access Channel:) channel configuration information.
  • pusch-Config PUSCH (Physical uplink shared channel) channel configuration information.
  • pucch-Config PUCCH (Physical uplink control channel) channel configuration information.
  • soundingRS-UL-Config SoundingRS uplink configuration information.
  • UplinkPowerControl Uplink power control.
  • ul-CyclicPrefixLength The length of the upstream cyclic prefix.
  • SIB2 may include: Mb sfn -Sub fr ameC onfigList: A subframe list reserved for MBSFN (Multimedia Broadcast Multicast Single Frequency Network).
  • bcch-Config BCCH channel configuration information.
  • PCCH Physical Control Channel
  • PDSCH Physical downlink shared channel
  • the foregoing system information may be transmitted by using incremental signaling.
  • related information of the first cell may be used as default information.
  • the ON flag "ON” may be used. Identify updates to related information. For example, when the ON flag "ON" is 1, it indicates that the related information is updated; when the ON flag "ON" is 0, it indicates that the related information is not updated.
  • the terminal may determine which parts of the system information are updated according to the open flag.
  • the second dedicated signaling, the third dedicated signaling, etc. described above and mentioned below may be transmitted in an incremental signaling manner.
  • incremental signaling can also be used.
  • the updated system information may include only the system information involved in the changed portion, and does not have to include the portion that has not changed.
  • the second dedicated signaling may include only system information related to the carrier unit or carrier segment to be added that affects the carrier aggregation transmission.
  • FIG. 37 shows a schematic diagram of a terminal acquiring updated system information (ie, system information related to a carrier unit to be added) when a carrier unit is added in a carrier aggregation scenario.
  • system information ie, system information related to a carrier unit to be added
  • the cell corresponding to the carrier unit CC1 of the terminal UE is the first cell (special cell) of the terminal, and it is assumed that the carrier unit CC2 is to be added to the terminal.
  • the terminal establishes an RRC (Radio Resource Control) connection with the CC 1 (special cell) (the RRC connection can be established by any suitable method, which is not described in detail herein), and the system of the CC2 can be carried by using the extension of the RRCConnectionReconfiguration message.
  • the information the terminal obtains the message through the cell corresponding to the CC 1, and can use the system information therein to activate the carrier unit CC2. This method speeds up the implementation of the carrier aggregation transmission.
  • Extended carrier information ie, system information
  • An extension carrier is a type of carrier that cannot be used independently. It is subordinate to a set of carrier units and contains at least one carrier that can be used independently in this set of carrier units.
  • the extension carrier must coexist with a carrier unit that can be used independently.
  • System information is usually not passed on the extended carrier.
  • the channel configuration of the extended carrier may be different from other types of carriers, for example, channels such as RACH, PDCCH, and PUCCH may not be included. Therefore, when the system information in SIB2 is transmitted, these information can be omitted, thereby further reducing the amount of information transmitted.
  • FIGs. 27 and 28 uses the dedicated signaling of the first cell to transmit/receive system information related to the extension carrier, thereby avoiding the overhead of listening to the broadcast channel.
  • a carrier segment can be understood as a data transmission extension on a backward compatible carrier unit, ie, some consecutive resource blocks are attached to the backward compatible carrier unit, so that the integrated carrier unit can be used as backward compatible.
  • the carrier unit is used by the LTE-A terminal.
  • the method of providing/receiving system information in the embodiment shown in Figs. 27-28 can be used in the case where the carrier unit to be added includes a carrier segment.
  • the method of providing/receiving system information and the method of performing system information update in the embodiment/example shown in FIGS. 2 to 26 can be applied to a carrier unit that is in use (in an active state). Increase the context of the carrier segment.
  • the first information/notification information may include information indicating that a carrier segment is to be added.
  • an indicator (referred to as a third indicator, such as may be represented as CarrierSegmentlndicator) indicates that the carrier segment is added for the currently used carrier unit. If the terminal that does not support carrier aggregation receives the information sent by the base station, it can determine whether it needs to receive the system information through the third indicator included therein. If the third indicator indicates that a carrier segment is added, the terminal may not receive system information. That is, the scenario of adding a carrier segment has no effect on a terminal that does not support carrier aggregation.
  • the base station may encapsulate the first information/notification information including the third indicator in the first In dedicated signaling, the third indicator can be asserted.
  • the broadcast channel of the corresponding cell although the system information related to the carrier segment is broadcast through the second broadcast, it is not in the second wide
  • Add an update notification to the ⁇ ft command This is compatible with LTE Release 8.
  • the changes to the system information are transparent to them. If the terminal does not support LTE-A, the terminal will not receive the first dedicated signaling and will not listen to the updated system information on the channel of the corresponding cell. After receiving the first information/update information and checking that the third indicator is valid, the terminal supporting the LTE-A listens to the broadcast channel of the corresponding cell to receive the updated system information.
  • FIG. 15 is employed to add a carrier segment to a currently used carrier unit (the first information/notification information is transmitted through a broadcast channel of the first cell, And transmitting updated system information on the broadcast channel of the corresponding cell).
  • the base station may then encapsulate the first information/notification information including the third indicator in the first dedicated signaling and may assert the third indicator.
  • the updated system information (system information related to the carrier segment) is broadcast through the second broadcast.
  • the terminal If the terminal does not support LTE-A, after receiving the first information/notification information, the terminal checks that the third indicator is valid, and then selects not to go to the broadcast channel of the corresponding cell to monitor the updated system information (or ignore the update of the subsequent broadcast). system message). After receiving the first information/update information and checking that the third indicator is valid, the terminal supporting the LTE-A listens to the channel of the corresponding cell to receive the updated system information.
  • step S2902 when a carrier segment is to be added for a currently used carrier unit, system information related to the carrier segment is generated, and information indicating that a carrier segment is to be added may also be generated.
  • the system information may be obtained through a configuration file that is controlled by a base station of the communication system.
  • step S2904 the generated information is transmitted by the cell corresponding to the currently used carrier unit.
  • system information may be encapsulated in dedicated signaling (referred to as fourth dedicated signaling) and the fourth dedicated signaling is transmitted over the dedicated channel of the cell.
  • system information may be encapsulated in broadcast signaling (referred to as third broadcast signaling) and the third broadcast signaling is transmitted over the broadcast channel of the cell.
  • FIG. 30 shows a method of receiving system information related to a carrier segment in a scenario in which a carrier segment is added for a currently used carrier unit, corresponding to the transmission flow of FIG.
  • the terminal receives system information related to the carrier segment and information indicating that the carrier segment is to be added by the cell corresponding to the currently used carrier unit.
  • the terminal configures a carrier segment according to the received system information, thereby activating the carrier segment.
  • the terminal receives the fourth dedicated signaling through the dedicated channel of the cell, parses the fourth dedicated signaling to obtain the system information, and according to the system information. Configure the carrier segment.
  • the terminal receives the third broadcast signaling by listening to the broadcast channel of the cell, parses the third broadcast signaling to obtain the system information, and according to the system information. To configure the carrier segment.
  • the device includes: an information generating device 3102, a cell determining device 3104, and a transmitting device 3106.
  • the information generating device 3102 can be configured to generate first information when the system information of the communication system changes, the first information including information indicating that the system information changes. Relevant information can be obtained through a corresponding configuration file in the base station of the communication system to determine whether the system information has changed.
  • the cell determining means 3104 may be configured to determine a first cell of the terminal involved in the change of the system information, wherein the first cell is one of the cells to which the terminal is connected, Corresponding to a carrier unit that is being used by the terminal to remain connected to a base station of the communication system.
  • the first cell (special cell) is the same as in the foregoing method embodiment/example, and is not repeated here.
  • the cell determining means 3104 can determine the special cell of the terminal by using the method in the foregoing method embodiment/example, which is not repeated here.
  • the sending device 3106 is configured to send the first information to the terminal by using the first cell.
  • the above device may be disposed on the network side of the communication system, such as in a base station of the communication system.
  • a communication system supporting carrier aggregation since the first cell is always connected to the primary node (such as a base station) of the system, by using the above method, the situation that the terminal cannot receive is avoided, and the system information can be provided or updated.
  • the base station does not have to transmit system information or notify system update of the terminal to each terminal of the terminal, thereby reducing the signaling burden of the system.
  • the information generating device 3102 is further configured to encapsulate the first information in dedicated signaling (first dedicated signaling), and the transmitting device 3106 is configured to pass the first The cell sends the first dedicated signaling to the terminal, that is, the first information is sent by using a dedicated channel of the first cell.
  • the information generating device 3102 is further configured to encapsulate the first information in a wide command (first command), and the transmitting device 3106 is configured to pass the first A broadcast channel of a cell transmits the first broadcast signaling to the terminal.
  • the apparatus includes a receiving device 3203 and a control device 3205.
  • the receiving device 3203 is configured to receive, by using the first cell, the first information.
  • the first information includes information indicating that the system information has changed.
  • the control device 3205 is configured to parse the first information to obtain the information for indicating that the system information changes.
  • the above device for receiving system information may be provided in a terminal of the communication system. Through the above device for receiving system information, the terminal can know the change of the system information in time. Since the first cell (e.g., a special cell) is always connected to the base station, the situation that is not received is avoided. In addition, by utilizing the first cell, the terminal does not need to listen to all the supports it supports. The cell corresponding to the wave unit can greatly reduce the power consumption of the terminal, thereby prolonging the use time of the terminal battery.
  • the first cell e.g., a special cell
  • the receiving device 3203 may be configured to: receive, by the first cell, the first dedicated signaling encapsulated with the first information That is, the first information is received through a dedicated channel of the first cell.
  • the receiving device 3203 may be configured to: receive, by using a broadcast channel of the first cell, a first packaged with the first information Broadcast signaling, that is, receiving the first information by listening to the broadcast channel of the first cell.
  • a communication system for supporting carrier aggregation may include the above-described apparatus for providing system information and a device for receiving system information, thereby realizing delivery and update of system information.
  • the first information may include only information (also referred to as notification information) for indicating a change in system information.
  • notification information also referred to as notification information
  • Related transmitting and receiving devices will be described below with reference to Figs. 33 and 34.
  • the first information generated by the information generating device 3102 may further include updated system information, and the transmitting device 3106 passes the first cell (eg, using the first broadcast signaling or the first dedicated signaling described above).
  • the first information including the updated system information is directly transmitted to the terminal; and on the terminal side, the control device 3205 can obtain the updated system information by parsing the first information.
  • the first information may further include information (also referred to as third information) indicating whether the change in system information affects the carrier aggregation transmission.
  • the third information may indicate which portion of the communication system the system information has changed, and the terminal (e.g., the control device) may determine whether the change has an impact on the carrier aggregation transmission.
  • the change in system information may include the case of adding a carrier segment and/or an extension carrier for a certain carrier unit currently being used.
  • the first information may include system information related to the carrier segment and/or the extension carrier.
  • the control device 3205 may learn that the carrier segment is to be added by analyzing the first information. Or the case of extending the carrier, and obtaining system information related to the carrier segment and/or the extension carrier, and configuring the carrier segment and/or the extension carrier according to the system information.
  • the device includes: a notification generating device 3302, a cell determining device 3304, and a transmitting device 3306.
  • the notification generating means 3302 can be configured to generate notification information when the system information of the communication system changes, the notification information including information for indicating that the system information has changed. It can be understood that the notification information is an example of the first information.
  • the cell determining means 3304 may be configured to determine a first cell of the terminal involved in the change of the system information, wherein the first cell is one of the cells to which the terminal is connected, corresponding to the terminal being used by the terminal A carrier unit that remains connected to a base station of the communication system.
  • the first cell (special cell) is the same as in the foregoing method embodiment/example, and is not repeated here.
  • the cell determining means 3304 can determine the special cell of the terminal by using the method in the foregoing method embodiment/example, which is not repeated here.
  • the sending device 3306 can be configured to send the notification information to the terminal by using the first cell.
  • the notification generating device 3302 is further configured to encapsulate the notification information in dedicated signaling (first dedicated signaling), and the transmitting device 3306 is configured for Transmitting, by the first cell, the first dedicated signaling to the terminal, that is, transmitting the first information by using a dedicated channel of the first cell.
  • the notification generating device 3302 is further configured to encapsulate the notification information in broadcast signaling (first broadcast signaling), and the transmitting device 3306 is configured to broadcast through the first cell The channel transmits the first broadcast signaling to the terminal.
  • the apparatus includes a notification receiving apparatus 3403 and control. Device 3405.
  • the notification receiving means 3403 is for receiving, by the first cell, notification information transmitted from the network side (base station) of the communication system.
  • the notification information includes information indicating that the system information has changed.
  • the control device 3405 is configured to parse the notification information to learn that the system information of the communication system has changed.
  • the above device for receiving system information may be disposed in a terminal of the communication system. Through The device that receives the system information can obtain the notification that the system information changes in time. Since the first cell (such as a special cell) is always connected to the base station, the case where the notification is not received is avoided. In addition, by using the first cell, the terminal does not need to listen to the cell corresponding to all the carrier units supported by the terminal, and the power consumption of the terminal can be greatly reduced, thereby prolonging the use time of the terminal battery.
  • the first cell such as a special cell
  • the receiving device 3403 may be configured to: receive, by using the first cell, the first dedicated signaling encapsulated with the notification information, that is, by using the first A dedicated channel of a cell receives notification information.
  • the receiving device 3403 may be configured to: receive, by using a broadcast channel of the first cell, the first broadcast signaling encapsulated with the notification information, that is, The broadcast channel of the first cell is monitored to receive the first information.
  • the notification generating device 3302 may also be configured to encapsulate the updated system information in a wide second order, and the transmitting device 3306 may also be configured to pass through the system
  • the wide channel of the cell (second cell) corresponding to the carrier unit involved in the change of the information transmits the second wide order to the terminal.
  • the terminal side control device 3405 knows that the system information has changed by analyzing the notification information
  • the terminal device 3405 can instruct the receiving device 3403 to listen to the wide channel of all the cells corresponding to all the carrier units supported by the terminal. Thereby receiving updated system information transmitted by the network side (base station) of the communication system.
  • the notification information generated by the notification generating means 3302 may further include information (second information) for identifying a carrier unit to which the change of the system information relates.
  • second information information for identifying a carrier unit to which the change of the system information relates.
  • the control device 3405 can obtain the second information by parsing the notification message, and can learn the carrier involved in the change of the system information according to the second information.
  • the unit thereby instructing the receiving device 3403 to receive the updated system information by listening to the broadcast channel of the cell corresponding to the carrier unit involved. This can prevent the terminal from listening to all cells, thereby reducing the power consumption of the terminal and extending the battery life of the terminal.
  • the notification information generated by the notification generating device 3302 may further include information (third information) for identifying whether the change in the system information affects the carrier aggregation transmission.
  • the control device 3405 can obtain the third information by parsing the notification message, and can decide whether to receive the updated system information based on the third information. For example, if the end The terminal supports carrier aggregation and the third message indicates that the change of the system information does not affect the carrier aggregation transmission, and the control device 3405 may opt out of receiving the updated system information, that is, does not instruct the receiving device 3403 to receive the updated system information.
  • the terminal may also abandon receiving the updated system information. If the control device 3405 determines that the change of the system information affects the carrier aggregation transmission according to the third information, thereby determining to receive the updated system information, the receiving device 3403 may be instructed to listen to the corresponding cell, thereby receiving the updated system information.
  • the notification generating means 3302 may also encapsulate the updated system information in dedicated signaling (also referred to as third dedicated signaling) and transmit/receive through a dedicated channel of the second cell.
  • the notification information includes information (second information) for identifying a carrier unit involved in the change of the system information.
  • the control device 3405 can parse the notification information to obtain the second information, and instruct the receiving device 3403 to listen to the carrier unit involved according to the second information.
  • the dedicated channel of the corresponding cell thereby obtaining updated system information.
  • the terminal does not need to listen to other cells corresponding to other carrier units it supports, which can greatly reduce the power consumption of the terminal, thereby prolonging the use time of the terminal battery.
  • the broadcast signaling and/or dedicated signaling described herein may be newly defined signaling or an extension to known signaling. I won't go into details here.
  • a communication system for supporting carrier aggregation may include an apparatus for notifying an update of system information in the above embodiment/example and a device for receiving a notification of an update of system information. , thereby realizing notification of system information update.
  • the device includes: a dedicated signaling generating device 3502, a cell determining device 3504, and a transmitting device 3506.
  • the dedicated signaling generating means 3502 may be configured to generate first information when the carrier unit is to be added, the first information including information indicating a case where a carrier unit is to be added and a carrier unit to be added system message.
  • the dedicated signaling generating means 3502 is further configured to encapsulate the first information in the second dedicated signaling.
  • the cell determining means 3504 can be used to determine the terminal involved in the change of the system information. a first cell, wherein the first cell is one of the cells to which the terminal is connected, corresponding to a carrier unit that the terminal is using to maintain a connection with a base station of the communication system.
  • the first cell (special cell) is the same as in the foregoing method embodiment/example, and is not repeated here.
  • the cell determining means 3504 can use the method in the foregoing method embodiment/example to determine the special cell of the terminal, which is not repeated here.
  • the sending device 3506 is configured to send the second dedicated signaling to the terminal by using the first cell, that is, send the first information by using a dedicated channel of the first cell.
  • the device includes a dedicated signaling receiving device 3603 and a control device 3605.
  • the signaling receiving apparatus 3603 may be configured to receive, by the first cell, second dedicated signaling encapsulated with first information including system information related to the carrier unit to be added.
  • the control device 3605 is configured to: parse the second dedicated signaling to learn that a carrier unit is to be added, and obtain system information related to the carrier unit to be added, according to the carrier to be added The unit related system information is used to configure the carrier unit to be added.
  • the terminal side Since the first cell uses dedicated signaling for system information transmission, the terminal side does not have to listen to the broadcast channels of all cells. In addition, due to the use of dedicated signaling, this information is transparent to terminals that do not support carrier aggregation.
  • the carrier unit to be added may be an extension carrier
  • the first information generated by the dedicated signal generating device 3502 further includes system information related to the extension carrier.
  • the control device 3605 may learn to add an extension carrier by parsing the second dedicated signaling, and obtain the extended carrier Relevant system information, based on which information is configured for the extension carrier.
  • the carrier unit to be added may further include a carrier segment attached to the carrier unit to be added.
  • Dedicated signaling generation device 3502 is also configured to generate system information related to the carrier segment
  • transmitting device 3506 is further configured to transmit configuration information related to the carrier segment to the terminal through the first cell.
  • system information associated with the carrier segment can be encapsulated in a second dedicated signaling.
  • the control device 3605 can learn to add a carrier segment by parsing the first information, and obtain the carrier segment. Relevant system information, based on which information is configured for carrier segments.
  • a communication system supporting carrier aggregation may include the above-described apparatus for providing and receiving system information, thereby completing the transmission of system information when a carrier unit is to be added.
  • system information, the second dedicated signaling, and the like described herein may have similar formats, similar contents, and similar transmission modes as the embodiment/example described with reference to Figs. 27 and 28, and are not repeated here.
  • a cell corresponding to a certain carrier unit (such as a special cell) is used to send or listen to a system information update notification message, thereby increasing a system update notification message.
  • the receiving accuracy rate effectively reduces the energy loss of the monitoring load and the terminal, and prolongs the use time of the terminal battery.
  • the various steps of the above method and the various constituent modules and/or units of the above apparatus may be implemented as software, firmware, hardware or a combination thereof in a master node (eg, a base station) of a communication network, and as the base station Part of the wireless resource control device.
  • a master node eg, a base station
  • the base station Part of the wireless resource control device e.g., a base station
  • the specific means or manner in which the various components and units of the above-mentioned devices are configured by software, firmware, hardware or a combination thereof are well known to those skilled in the art and will not be described herein.
  • the method and/or apparatus according to the above-described embodiments of the present invention may be implemented in an existing base station radio resource control device, wherein certain components of the existing base station radio resource control device may be modified.
  • the central processing unit (CPU) 3801 performs various processes in accordance with a program stored in the read only memory (ROM) 3802 or a program loaded from the storage portion 3808 to the random access memory (RAM) 3803.
  • ROM read only memory
  • RAM random access memory
  • data required when the CPU 3801 performs various processes and the like is also stored as needed.
  • the CPU 3801, the ROM 3802, and the RAM 3803 are linked to each other via the bus 3804.
  • Input/output interface 3805 also links to bus 3804
  • an input/output interface 3805 an input portion 3806 (including a keyboard, a mouse, etc.), an output portion 3807 (including a display such as a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and A speaker, etc.), a storage portion 3808 (including a hard disk or the like), a communication portion 3809 (including a network interface card such as a LAN card, a modem, etc.).
  • the communication section 3809 performs communication processing via a network such as the Internet.
  • the driver 3810 can also be linked to the input/output interface 3805 as needed.
  • a removable medium 3811 such as a magnetic disk, a compact disk, a magneto-optical disk, a semiconductor memory or the like is mounted on the drive 3810 as needed, so that the calculation order read therefrom is installed into the storage portion 3808 as needed.
  • a program constituting the software is installed from a network such as the Internet or a storage medium such as the detachable medium 3811.
  • such a storage medium is not limited to the removable medium 3811 shown in FIG. 38 in which a program is stored and distributed separately from the device to provide a program to the user.
  • the detachable medium 3811 include a magnetic disk (including a floppy disk (registered trademark):), an optical disk (including a compact disk read only memory (CD-ROM) and a digital versatile disk (DVD)), and a magneto-optical disk (including a mini disk (MD) (registered) Trademark)) and semiconductor memory.
  • the storage medium may be a ROM 902, a hard disk included in the storage portion 3808, or the like, in which programs are stored, and distributed to the user together with the device containing them.
  • the present invention also proposes a program product for storing a machine readable instruction code.
  • the above-described method according to an embodiment of the present invention can be performed when the instruction code is read and executed by a machine.
  • a storage medium for carrying a program product storing the above-described storage machine readable instruction code is also included in the disclosure of the present invention.
  • the storage medium includes, but is not limited to, a floppy disk, an optical disk, a magneto-optical disk, a memory card, a memory stick, and the like.
  • the method of the present invention is not limited to being executed in the chronological order described in the specification, and may be performed in other chronological order, in parallel, or independently.
  • the step of determining the first cell in some embodiments/examples may be performed prior to the step of generating the first information/notification information. Therefore, the order of execution of the methods described in the specification does not limit the technical scope of the present invention.

Description

支持载波汇聚的通信系统及其系统信息更新方法和设备
技术领域
[01] 本发明涉及支持载波汇聚的通信领域, 具体地, 涉及支持载波汇 聚的通信系统及其系统信息更新方法和设备。 更具体地, 涉及在支持 载波汇聚的通信系统中提供和接收系统信息的方法、设备以及包括所 述设备的通信系统。 背景技术
[02] 未来的 LTE-A ( Long Term Evolution -Advanced )系统将支持高 达 100MHz的传输带宽, 而在 LTE标准中可支持的最大传输带宽为 20MHz, 因此需要将多个载波单元进行汇聚以实现更高的传输带宽。 载波汇聚( Carrier Aggregation )是 3GPP为了支持未来的移动通信 系统更高的传输带宽需求而提出的将多个载波单元聚合进行联合传 输的技术。载波汇聚技术的引入为通信技术的发展带来了新的机遇和 挑战。
发明内容
[03] 在下文中给出关于本发明的简要概述,以便提供关于本发明的某 些方面的基本理解。应当理解, 这个概述并不是关于本发明的穷举性 概述。 它并不是意图确定本发明的关键或重要部分, 也不是意图限定 本发明的范围。 其目的仅仅是以简化的形式给出某些概念, 以此作为 稍后论述的更详细描述的前序。
[04] 才艮据本发明的一个方面,提供了一种支持载波汇聚的通信系统中 的提供系统信息的方法, 该方法包括: 在所述通信系统的系统信息发 生变化时, 产生包括用于指示系统信息发生变化的信息的第一信息; 确定系统信息的变化所涉及的终端的第一小区,其中所述第一小区是 所述终端连接到的小区中的一个,且对应于所述终端正在使用的与所 述通信系统的基站保持连接的载波单元; 以及通过所述第一小区向所 述终端发送所述第一信息。
[05] 才艮据本发明的另一方面,提供了一种支持载波汇聚的通信系统中 的提供系统信息的设备, 该设备包括: 信息产生装置, 用于在所述通 信系统的系统信息发生变化时产生包括用于指示系统信息发生变化 的信息的第一信息; 小区确定装置, 用于确定系统信息的变化所涉及 的终端的第一小区,其中所述第一小区是所述终端连接到的小区中的 一个,且对应于所述终端正在使用的与所述通信系统的基站保持连接 的载波单元; 以及发送装置, 用于通过所述第一小区向终端发送所述 第 Ί ο
[06] 才艮据本发明的另一方面,提供了一种支持载波汇聚的通信系统中 的接收系统信息的方法, 该方法包括: 通过第一小区接收包括用于指 示系统信息发生变化的信息的第一信息,其中所述第一小区对应于终 端正在使用的与所述通信系统的基站保持连接的载波单元;及解析所 述第一信息, 以得到用于指示系统信息发生变化的信息。
[07] 才艮据本发明的另一方面,提供了一种支持载波汇聚的通信系统中 的接收系统信息的设备, 该设备包括: 接收装置, 用于通过第一小区 接收包括用于指示系统信息发生变化的信息的第一信息,其中所述第 一小区对应于所述设备正在使用的与所述通信系统的基站保持连接 的载波单元; 及控制装置, 用于解析所述第一信息以得到所述用于指 示系统信息发生变化的信息。
[08] 才艮据本发明的另一方面,提供了一种支持载波汇聚的通信系统中 的收发系统信息的方法, 该方法包括: 在所述通信系统的系统信息发 生变化时, 产生包括用于指示系统信息发生变化的信息的第一信息; 确定系统信息的变化所涉及的终端的第一小区,其中所述第一小区是 所述终端连接到的小区中的一个,且对应于所述终端正在使用的与所 述通信系统的基站保持连接的载波单元;通过所述第一小区向所述终 端发送所述第一信息; 由所述终端通过所述第一小区接收所述第一信 息; 及由所述终端解析所述第一信息, 以得到所述用于指示系统信息 发生变化的信息。
[09] 才艮据本发明的另一方面, 提供了一种通信系统。 所述通信系统支 持载波汇聚,并且包括用于提供系统信息的第一设备以及用于接收系 统信息的第二设备。 第一设备包括: 信息产生装置, 用于在所述通信 系统的系统信息发生变化时产生包括用于指示系统信息发生变化的 信息的第一信息; 小区确定装置, 用于确定系统信息的变化所涉及的 终端的第一小区,其中所述第一小区是所述终端连接到的小区中的一 个,且对应于所述终端正在使用的与所述通信系统的基站保持连接的 载波单元; 及发送装置, 用于通过所述第一小区向终端发送所述第一 信息。 第二设备包括: 接收装置, 用于通过所述第一小区接收所述第 一信息; 及控制装置, 用于解析所述第一信息以得到所述用于指示系 统信息发生变化的信息。
[10] 另外, 本发明的实施例还提供了用于实现上述方法的计算机程 序。
[11] 此外,本发明的实施例还提供了至少计算机可读介质形式的计算 ι^序产品, 其上记录有用于实现上述方法的计算机程序代码。
附图说明
[12] 参照下面结合附图对本发明实施例的说明,会更加容易地理解本 发明的以上和其它目的、 特点和优点。 附图中的部件只是为了示出本 发明的原理。 在附图中, 相同的或类似的技术特征或部件将采用相同 或类似的附图标记来表示。
[13] 图 1示出了支持载波汇聚的通信系统示例性结构图;
[14] 图 2是示出了根据本发明一个实施例的在载波汇聚场景下向终 端提供信息从而实现系统信息的更新的方法的示意性流程图;
[15] 图 3示意性示出了图 1 所示的通信系统中的一些终端的特殊小 区;
[16] 图 4和图 5分别示出了通过第一小区向终端发送第一信息的示例 性絲;
[17] 图 6示出了根据图 2所示的实施例在支持载波汇聚的通信系统中 由终端接收信息从而实现系统信息的更新的示例性方法;
[18] 图 7示出了与图 4所示的发送流程示例对应的一个接收流程示 例;
[19] 图 8示出了与图 5所示的发送流程示例对应的一个接收流程示 例;
[20] 图 9示出了根据本发明一个实施例、在支持载波汇聚的通信系统 中通知系统信息的更新的方法的示例性 [21] 图 10示出了根据本发明实施例、 在支持载波汇聚的通信系统中 接收系统信息发生变化的通知的方法的示例性流程;
[22] 图 11和图 12分别示出了通过第一小区向终端发送通知信息的示 例性流程;
[23] 图 13示出了与图 11所示的发送流程示例对应的一个接收¾½示 例;
[24] 图 14示出了与图 12所示的发送流程示例对应的一个接收流程示 例;
[25] 图 15示出了根据本发明一个实施例、 在支持载波汇聚的通信系 统中提供更新的系统信息的方法的示例性流程;
[26] 图 16示出了根据本发明的实施例、 在支持载波汇聚的通信系统 中接收更新的系统信息的方法的示例性流程;
[27] 图 17示出了根据本发明的另一实施例的接收更新的系统信息的 方法的示例性流程;
[28] 图 18示出了根据本发明的另一实施例的接收更新的系统信息的 方法的示例性流程;
[29] 图 19示出了在载波汇聚的场景下采用扩展已知信令作为第一广 ^令来通知系统信息的变化的示意图;
[30] 图 20示出了在载波汇聚的场景下采用专用信令来通知系统信息 的变化的示意图;
[31] 图 21示出了根据本发明一个实施例、 在支持载波汇聚的通信系 统中提供更新的系统信息的方法的示例性流程;
[32] 图 22和图 23分别示出了通过第一小区向终端发送包括更新的系 统信息的第一信息的示例性流程;
[33] 图 24至图 26分别示出了根据本发明的实施例由终端接收更新的 系统信息的示例性流程;
[34] 图 27示出了根据本发明一个实施例、 在要添加载波单元的情境 下提供系统信息的方法的示例性流程;
[35] 图 28示出了与图 27所示的流程对应的由终端接收系统信息的示 例性流程; [36] 图 29示出了根据本发明另一实施例的、 在为当前使用的载波单 元添加载波片段的情景下提供与载波片段相关的系统信息的方法的 示意性流程;
[37] 图 30示出了与图 29的流程对应的、在为当前使用的载波单元添 加载波片段的情景下接收与载波片段相关的系统信息的方法的示意 性絲;
[38] 图 31示出了根据本发明的一个实施例的在支持载波汇聚的通信 系统中提供系统信息的设备的示意性框图;
[39] 图 32示出了根据本发明的实施例的在支持载波汇聚的通信系统 中接收系统信息的设备的示意性框图;
[40] 图 33示出了根据本发明一个实施例的用于在支持载波汇聚的通 信系统中通知系统信息的更新的设备的示意性框图;
[41] 图 34示出了根据本发明的实施例的在支持载波汇聚的通信系统 中接》^系统信息的更新通知的设备的示意性框图;
[42] 图 35示出了根据本发明的一个实施例用于在要添加载波单元的 情况下发送系统信息的设备的示意性框图;
[43] 图 36示出了根据本发明的实施例的、 在要添加载波单元的情况 下接收系统信息的设备的示意性框图;
[44] 图 37示出了载波汇聚场景下添加载波单元时终端获取更新的系 统信息的示意图; 以及
[45] 图 38是示出用于实现本发明的计算机的结构的示例性框图。
具体实施方式
[46] 下面参照附图来说明本发明的实施例。在本发明的一个附图或一 种实施方式中描述的元素和特征可以与一个或更多个其它附图或实 施方式中示出的元素和特征相结合。 应当注意, 为了清楚的目的, 附 图和说明中省略了与本发明无关的、本领域普通技术人员已知的部件 和处理的表示和描述。
[47] 本发明的一些实施例提供了在支持载波汇聚的通信系统中进行 系统信息更新的方法和设备以及包括上述设备的通信系统等。 [48] 图 1示出了一个支持载波汇聚的示例性通信系统。 如图 1所示, 该通信系统包括基站(如 e-NodeB ) 101以及用户终端 102、 103、 104。 在图 1 所示的示例中, 通信系统所支持的载波单元包括 CC 1、 CC2 和 CC3。 其中, 终端 102可使用载波单元 CC 1和 CC2, 终端 103可 支持载波单元 CC2和 CC3, 而终端 104可支持载波单元 CC 1、 CC2 和 CC3, 即终端 102、 103和 104均为支持载波汇聚的( CA-S )的终 端。 作为一个示例, 该通信系统还可以包括不支持载波汇聚的 ( CA-NS )终端 105,如图 1所示,该终端 105仅可使用载波单元 CC 1。 在该通信系统所支持的各个载波单元中, 载波单元 CC 1与载波单元 CC2是连续的, 而载波单元 CC3则与载波单元 CC 1和 CC2不连续。 图 1所示的通信系统既包括支持载波汇聚的终端,也包括不支持载波 汇聚的终端。应理解这仅仅是示例性的, 本发明并不局限于这样的通 信系统。 例如, 本发明还可以应用于: 仅包括基站和支持载波汇聚的 终端的通信系统, 包括基站、 中继站和用户终端的通信系统或者其他 支持载波汇聚的通信系统。 这里不一一列举。
[49] 应理解, 本说明书和权利要求书中所谓的 "用户终端 (User Equipment, UE )" 或 "终端" 可以包括但不限于用户所使用的用于 接入通信网络的移动设备, 如手机(如图 1的 102和 103等)、 个人 数字助理或便携式计算机等等。
[50] 通信系统的系统信息需要随时保持最新状态。当系统信息发生变 化时, 通信系统的主节点 (如基站)需要按照某种方式来通知终端。 在支持载波汇聚的通信系统中,终端可以通过多个载波单元与通信系 统的主节点进行通信。 例如, 图 1所示的终端 104可以通过三个载波 单元 CC 1、 CC2、 CC3 与基站进行通信。 不同载波单元的传播特性 不同, 导致不同载波单元的覆盖范围不同, 当某个终端移动到其所支 持的某个载波单元的覆盖范围外而此时系统信息发生更新时,如果通 过该载波单元所对应的小区发送新的系统信息, 终端将接收不到。 这 样, 当该终端重新 ^该载波单元的覆盖区域时系统信息的不正确, 从而导致该载波单元的不可用。
[51] 图 2是示出了根据本发明一个实施例的在载波汇聚场景下向终 端提供信息从而实现系统信息的更新的方法的示意性流程图。
[52] 如图 2所示, 该方法包括步骤 S202、 S204和 S206。 [53] 在步骤 S202中, 当所述通信系统的系统信息发生变化时, 产生 用于指示系统信息发生变化的信息。 为了简洁, 下文中将此步骤中的 信息称为第一信息。
[54] 这里所述的通信系统为支持载波汇聚的通信系统,例如图 1所示 的通信系统。 可以由该通信系统的主节点(例如基站)来判断该通信 系统的系统信息是否发生了变化, 例如, 可以从主节点(基站)的相 应的配置文件中获^ 目关信息, 从而确定系统信息是否发生了变化。
[55] 在步骤 S204中, 确定向系统信息的变化所涉及的终端发送第一 信息时将要使用的小区。
[56] 如上所述, 在支持载波汇聚的通信系统中, 终端可以通过多个载 波单元与通信系统的主节点进行通信, 每个载波单元对应于一个小 区。在每个终端所连接到的小区中,存在一个特殊小区( Special Cell ), 该特殊小区可用于提供安全输入以及非接入层 ( Non Access Stratum, NAS )移动性信息等, 其中, 该特殊小区对应于终端正在使用的与通 信系统的主节点(如基站)保持连接的某个载波单元。作为一个示例, 对于每个终端,可以仅设置一个特殊小区。换言之,可以作如下限定: 每个终端连接到一个特殊小区,该特殊小区对应于某个与基站保持连 接的载波单元, 而该终端所支持的其他载波单元可以被用作该终端的 上行和 /或下行资源。 在一个示例中, 这些其他载波单元所对应的小 区也可以称为服务小区 ( Serving Cell )。
[57] 图 3示出了图 1所示的通信系统中的一些终端的特殊小区。如图 3所示, 终端 102 ( UE 102 )支持载波单元 CC1和 CC2, 其中, CC1 所对应的小区为终端 102的特殊小区; 终端 103 ( UE 103 )支持载波 单元 CC2和 CC3,其中, CC2所对应的小区为终端 103的特殊小区; 终端 104 ( UE 104 )支持载波单元 CC 1、 CC2和 CC3, 其中, CC3 所对应的小区为终端 104的特殊小区。
[58] 当系统信息发生变化时,由基站根据相应的配置文件来判断应当 将该变化通知到哪个 /哪些终端(即该变化所涉及的终端), 确定每个 终端的特殊小区, 作为用于向该终端发送第一信息的小区。
[59] 作为一个示例,可以由基站在终端连接到的一个或多个小区中选 择一个作为特殊小区。 具体地, 基站可以根据相应的配置文件或根据 终端反馈的信息(如信道质量、 信号强度、 终端位置等), 根据一定 的准则(通过该特殊小区保持与基站的连接 )从与终端所连接到的一 个或多个小区中选择一个作为特殊小区。 例如, 基站可以在向终端发 送第一信息前选择终端的特殊小区,并将选择结果通知给终端。又如, 基站还可以定期或者才艮据需要(例如当终端移动到某个小区的覆盖范 围的边缘或者以外时)执行该选择步驟, 将选择结果通知给终端并存 储在基站的相应的配置文件中; 这样, 当基站需要确定该终端的特殊 小区时, 即可在相应的配置文件中查找。
[60] 作为另一示例,还可以由终端来选择其特殊小区,再通知给基站。 例如, 终端可以根据自身配置来判断其各个小区与基站的连接状态, 并从与基站保持连接的小区中选择一个作为特殊小区,用于后续的系 统信息的传送。 例如, 终端可以定期、 或者才艮据其移动情况(如当其 移动到某个小区的覆盖范围的边缘或以外时)或其他信息(如信道质 量、 信号强度等)重新设置或者选择其特殊小区, 并将有关特殊小区 的信息发送给基站。 基站可以将这些信息保存在相应的配置文件中。 这样, 当基站需要确定终端的特殊小区时, 可以直接从该配置文件中 查找。 替选地, 当基站需要确定终端的特殊小区时, 基站还可以向终 端发送请求, 请求终端反馈有关终端的特殊小区的信息。
[61] 如上所述, 在步骤 S204中确定的特殊小区是终端所连接到的小 区中的一个,对应于终端正在使用的与通信系统的主节点保持连接的 载波单元。 为了简洁, 下文中也将特殊小区称为第一小区。
[62] 然后, 在步骤 S206中, 通过第一小区向终端发送第一信息。
[63] 在支持载波汇聚的通信系统中, 由于第一小区始终与系统的主节 点(如基站)保持连接, 因此, 通过利用上述方法, 避免了终端接收 不到的情况, 可以实现系统信息的提供或者更新。 另外, 基站不必通 过终端的每个小区向终端发送系统信息或通知系统信息的更新,从而 能够减轻系统的信令负担。
[64] 图 4和图 5分别示出了通过第一小区向终端发送第一信息的示例 性絲。
[65] 在图 4所示的示例中,通过第一小区向终端发送第一信息的步驟 可以包括子步骤 S406-1和 S406-2。 在子步骤 S406-1中, 将从在前步 骤中产生的第一信息封装在专用信令(为了简洁, 下文称为第一专用 信令) 中。 然后在子步骤 S406-2 中, 通过第一小区向终端发送第一 专用信令。 这里, 由于子步骤 S406-1 中产生的信令为专用信令, 因 此, 在子步骤 S406-2 中, 通过第一小区的专用信道来发送该专用信 令。
[66] 在本说明书以及权利要求书中,通过某个载波单元所对应的小区 发送专用信令是指通过该小区的专用信道来发送该专用信令。下文中 不再赘述。 专用信道可以称为专用控制信道( Dedicated Control Channel, DCCH ), 例如 LTE标准(如 ETSI TS 136 331 V8.5.0 ) 中 的 DCCH信道。
[67] 当通信系统中支持载波汇聚的终端较多且配置的载波单元个数 较多时, 采用专用信令的方式向终端发送第一信息(即通过第一小区 的专用信道来发送第一信息)给整个系统带来的信令负载将明显增 加。 在这种情况下可以采用图 5所示的方法流程。 在图 5所示的示例 中,通过第一小区向终端发送第一信息的步骤可以包括子步骤 S506-1 和 S506-2。 在子步骤 S506-1中, 将从在前步骤中产生的第一信息封 装在广播信令(为了简洁, 下文称为第一广播信令)中。 然后在子步 骤 S506-2 中, 通过第一小区的广播信道向终端发送第一广播信令。 广播信道也可以称为广播控制信道 ( Broadcast Control Channel, BCCH ), 例如 LTE标准(如 ETSI TS 136 331 V8.5.0 ) 中的 BCCH 信道。与图 4所示的专用信令方式相比,利用图 5的广播信令的方式, 可以有效降低系统的信令负载。
[68] 图 2、图 4和图 5所示的实施例 /示例示出了从通信系统的主节点 (基站 )向终端发送信息的示例性流程。 图 6至图 8示出了相对应的 由终端接收信息的示例性流程。
[69] 具体地,图 6示出了根据图 2所示的实施例在支持载波汇聚的通 信系统中由终端接收信息从而实现系统信息的更新的示例性方法。
[70] 如图 6所示, 该方法包括步骤 S607和 S609。
[71] 在步骤 S607中, 终端接收基站通过第一小区发送的包括用于指 示系统信息发生变化的信息的第一信息。换言之, 终端通过监听第一 小区所对应的载波单元(可以称为第一载波单元)来接收第一信息。 这里所述的第一小区与上述实施例 /示例中的相同, 这里不再重复。
[72] 在步骤 S609中, 终端解析接收到的第一信息, 以得到用于指示 系统信息发生变化的信息, 以便进行系统信息的更新。 [73] 通过上述接收方法, 终端可以及时获知系统信息的变化。 由于始 终通过第一小区(如特殊小区)与基站保持连接, 避免了接收不到的 情况。 另夕卜, 通过利用第一小区, 终端不需要监听其所支持的所有载 波单元所对应的小区, 可以大大降低终端的功耗, 从而延长终端电池 的使用时间。
[74] 图 2所示的发送流程与图 6所示的接收流程构成了在支持载波汇 聚的通信系统中进行系统信息更新的一个完整的方法流程。
[75] 图 7示出了与图 4所示的发送流程示例对应的一个接收流程示 例。 如图 4所示, 第一信息是封装在专用信令(第一专用信令)中通 过第一小区发送给终端的。 因此, 在步骤 S707中, 终端通过其第一 小区接收封装有第一信息的第一专用信令。换言之, 终端通过监听其 第一小区的专用信道来接收第一专用信令。 与步骤 S609相似, 在步 骤 S709中, 终端解析第一专用信令, 从而得到用于指示系统信息发 生变化的信息。
[76] 图 8示出了与图 5所示的发送流程示例对应的一个接收流程示 例。 如图 5所示, 第一信息是封装在广 ^令(第一广 ^令)中通 过第一小区的广播信道发送给终端的。 因此, 在步骤 S807中, 终端 通过第一小区的广播信道接收封装有第一信息的第一广播信令。换言 之, 终端通过监听第一小区的广播信道来接收第一广播信令。 步驟 S809与步骤 S609和 S709相似, 这里不再重复。
[77] 图 4所示的发送¾½与图 7所示的接收¾½、图 5所示的发送流 程与图 8所示的接收流程分别构成了根据本发明的示例的进行系统信 息更新的方法流程。 与图 4和图 7的利用专用信令的方式相比, 图 5 和图 8利用广 ^令的方式, 可以有效降低系统的信令负载。
[78] 另外, 通过利用第一小区 (专用信道或广播信道), 终端不需要 监听其所支持的所有载波单元所对应的小区,可以大大降低终端的功 耗, 从而延长终端电池的使用时间。
[79] 作为一个实施例,上述的第一信息可以仅包括用于指示系统信息 发生变化的信息, 在这种情况下, 在网络侧, 基站还会通过后续的发 送流程来发送更新的系统信息; 而在终端侧, 可以通过后续的接收流 程来接收该更新的系统信息, 这些流程将在下文中描述。
[80] 作为另一实施例, 上述第一信息还可以包括更新的系统信息, 即 在网络侧, 基站通过第一小区直接将更新的系统信息发送给终端; 而 在终端侧, 终端通过解析第一信息即可获得更新的系统信息, 这些流 程也将在下文中描述。
[81] 作为一个示例,上述第一信息还可以包括用于指示系统信息的变 化是否影响到载波汇聚传输的信息(也称为第三信息)。 例如, 第三 信息可以指示通信系统的哪个部分的系统信息发生了变化,终端可以 据此来判断该变化是否对载波汇聚传输产生了影响。
[82] 图 9示出了根据本发明一个实施例、在支持载波汇聚的通信系统 中通知系统信息的更新的方法的示例性流程。 在该方法中, 通信系统 的网络侧(如基站)通过第一小区来通知终端系统信息发生了变化。 这里所述的第一小区与上述实施例 /示例中的相同。
[83] 如图 9所示, 该方法包括步骤 S902、 S904和 S906。
[84] 在步骤 S906中, 当通信系统的系统信息发生变化时, 产生用于 指示系统信息发生变化的通知信息。这里的通知信息仅包括用于指示 系统信息发生变化的信息。 如上所述, 该通知信息可以看作上述第一 信息的一个示例。
[85] 与上述实施例相似,这里所述的通信系统为支持载波汇聚的通信 系统, 例如图 1所示的通信系统。 可以由该通信系统的主节点(例如 基站)来判断该通信系统的系统信息是否发生了变化, 例如, 可以从 主节点(基站)的相应的配置文件中获取相关信息, 从而确定系统信 息是否发生了变化。
[86] 在步骤 S904中, 确定在向系统信息的变化所涉及的终端发送通 知信息时将务 ί吏用的小区。
[87] 具体地,由基站根据相应的配置文件来判断应当将该变化通知到 哪个 /哪些终端(即该变化所涉及的终端),确定每个终端的特殊小区, 作为用于向该终端发送第一信息的小区。可以采用上文描述的示例中 的方法来确定终端的特殊小区, 这里不再重复
[88] 与上述实施例相似,在该步骤 904中确定的小区是终端所连接到 的小区中的一个,对应于终端正在使用的与通信系统的主节点保持连 接的载波单元, 也称为第一小区或者特殊小区。 [89] 然后, 在步骤 S906中, 通过第一小区向终端发送通知信息。
[90] 由于第一小区始终与系统的基站保持连接, 因此, 通过利用上述 方法, 避免了终端接收不到通知的情况, 从而能够及时将系统信息发 生的变化通知到终端。 另外, 基站不必通过终端的每个小区向终端发 送通知信息, 从而能够减轻系统的信令负担。
[91] 图 10示出了根据本发明实施例的在支持载波汇聚的通信系统中 接收系统信息发生变化的通知的方法的示例性流程。 在该方法中, 通 信系统的终端通过监听第一小区来接收由基站发送的用于指示系统 信息发生变化的通知信息。 这里所述的第一小区与上述实施例 /示例 中的相同。
[92] 如图 10所示, 该方法包括步骤 S1007和 S1009。
[93] 在步骤 S1007中,终端接收基站通过第一小区发送的包括用于指 示系统信息发生变化的通知信息。换言之, 终端通过监听第一小区所 对应的载波单元(也称为第一载波单元)来接收通知信息。
[94] 在步骤 S1009中, 终端解析接收到的通知信息, 以获知系统信息 发生了变化。
[95] 通过上述接收方法, 终端可以及时获知系统信息发生变化, 从而 有利于后续的系统信息的更新。由于始终通过第一小区(如特殊小区) 与基站保持连接, 避免了接收不到通知的情况。 另外, 通过利用第一 小区, 终端不需要监听其所支持的所有载波单元所对应的小区, 可以 大大降低终端的功耗, 从而延长终端电池的使用时间。
[96] 图 9所示的发送通知的流程与图 10所示的接收通知的流程构成 了在支持载波汇聚的通信系统中通知系统信息更新的方法流程。
[97] 图 11和图 12分别示出了通过第一小区向终端发送通知信息的示 例性流程。
[98] 在图 11所示的示例中, 通过第一小区向终端发送通知信息的步 骤可以包括子步骤 S1106-1和 S1106-2。在子步骤 S1106-1中,将从在 前步骤中产生的通知信息封装在专用信令(为了简洁, 下文称为第一 专用信令) 中。 然后在子步骤 S1106-2中, 通过第一小区向终端发送 第一专用信令。这里,由于子步骤 S1106-1中产生的信令为专用信令, 因此, 在子步骤 S1106-2中, 是通过第一小区的专用信道来发送该专 用信令的。
[99] 当通信系统中支持载波汇聚的终端较多且配置的载波单元个数 较多时, 采用专用信令的方式向终端发送通知信息(即通过第一小区 的专用信道来发送通知信息)给整个系统带来的信令负载将明显增 加。 在这种情况下可以采用图 12所示的方法流程。 在图 12所示的示 例中, 通过第一小区向终端发送通知信息的步骤可以包括子步骤 S1206-1和 S1206-2。在子步骤 S1206-1中,将从在前步骤中产生的通 知信息封装在广播信令(为了简洁, 下文称为第一广播信令)中。 然 后在子步骤 S1206-2中, 通过第一小区的广播信道向终端发送第一广 ^ff令。 与图 11所示的专用信令方式相比, 利用图 12的广 ^ff令的 方式, 可以有效降低系统的信令负载。
[100] 图 13示出了与图 11所示的发送流程示例对应的一个接收流程示 例。 如图 11所示, 第一信息是封装在专用信令(第一专用信令) 中 通过第一小区发送给终端的。 因此, 在步骤 S1307中, 终端通过其第 一小区所对应的载波单元(也称为第一载波单元)来接收封装有通知 信息的第一专用信令。换言之, 终端通过监听其第一小区的专用信道 来接收第一专用信令。 与步骤 S1009相似, 在步骤 S1309中, 终端解 析第一专用信令, 得到用于指示系统信息发生变化的通知信息, 从而 获知系统信息发生的变化。
[101] 图 14示出了与图 12所示的发送流程示例对应的一个接收流程示 例。 如图 12所示, 第一信息是封 广 令(第一广 令) 中 通过第一小区的广播信道发送给终端的。 因此, 在步骤 S1407中, 终 端通过第一小区的广播信道接收封装有通知信息的第一广播信令。换 言之, 终端通过监听第一小区的广播信道来接收第一专用信令。 步骤 S1409与步骤 S1009和 S1309相似, 这里不再重复。
[102] 图 11所示的发送流程与图 13所示的接收流程、 图 12所示的发 送流程与图 14所示的接收流程分别构成了根据本发明的示例的通知 系统信息更新的方法流程。与图 11和图 13的利用专用信令的方式相 比, 图 12和图 14利用广 令的方式, 可以有效降低系统的信令负 载。
[103] 另外, 通过利用第一小区 (专用信道或广播信道), 终端不需要 监听其所支持的所有载波单元所对应的小区,可以大大降低终端的功 耗, 从而延长终端电池的使用时间。
[104] 应该理解, 上述以及下文中将要描述的专用信令和 /或广播信令 可以是一个新定义的信令, 也可以是对已知信令的扩展。 本发明不对 其格式作任何限定。
[105] 图 15示出了根据本发明一个实施例、 在支持载波汇聚的通信系 统中提供更新的系统信息的方法的示例性流程。 图 15所示的方法基 于图 9、 图 11或图 12所示的方法流程, 不同之处在于, 图 15所示的 方法还包括用于发送更新的系统信息的过程。
[106] 如图 15 所示, 该方法包括步骤 S1502、 S1504、 S1506、 S1512 和 S1514。
[107] 步骤 S1502、 S1504、 S1506可以与图 9、 图 11或图 12中所示实 施例或示例中的相应步骤相似, 这里不再重复。
[108] 在步骤 S1512中, 通信系统的网络侧(如基站)将更新的系统信 息封装于广 ^令(也称为第二广 ^令)中。然后在步骤 S 1514中, 通过与所述系统信息的变化所涉及的载波单元对应的小区(也称为第 二小区)的广播信道向终端发送第二广播信令。
[109] 图 16示出了根据本发明的实施例、 在支持载波汇聚的通信系统 中接收更新的系统信息的方法的示例性流程。 图 16所示的方法基于 图 10、 图 13或图 14所示的方法流程, 不同之处在于, 图 16所示的 方法还包括用于接收更新的系统信息的过程。
[110] 如图 16所示, 该方法包括步骤 S1607、 S1609和 S1611。
[111] 步骤 S1607、 S1609可以与图 10、 图 13或图 14中所示实施例或 示例中的相应步骤相似, 这里不再重复。
[112] 如图 15所示, 通信系统的网络侧(如基站)将更新的系统信息 封装于第二广播信令中,并通过第二小区的广播信道发送第二广播信 令。相对应地, 由于终端不知道基站会在哪个小区的广播信道上发送 更新的系统信息, 因此, 当终端获知系统信息发生改变后, 则执行步 骤 S1611的流程,即开始监听其所支持的所有载波所对应的所有小区 的广播信道, 从而接收到所述第二广播信令。 在接收到第二广播信令 后, 对其进行解析以获得更新后的系统信息。
[113] 图 15的发送流程和图 16的接收流程构成了用于在支持载波汇聚 的通信系统中进行系统信息更新的流程。
[114] 在上述的实施例中, 通信系统的网络侧(基站)通过所涉及的载 波单元所对应的第二小区来发送更新的系统信息,而基站则需监听其 所支持的所有载波单元所对应的所有小区。这种方式不需在发送通知 信息的过程(如步骤 S1502-S1506 ) 中发送额外的信息。 可以简化通 知系统信息变化的流程。
[115] 图 17示出了根据本发明的另一实施例的接收更新的系统信息的 方法的示例性流程。 在该实施例中, 通知信息还可以包括用于标识系 统信息的变化所涉及的载波单元的信息(也称为第二信息)。 这样, 如图 17所示, 当终端在步骤 S1707中接收到包括第二信息以及用于 指示系统信息发生变化的信息的通知信息后,在步骤 S1709中通过解 析通知信息而得到第二信息。 在步骤 S1711中, 根据第二信息来监听 所涉及的载波单元所对应的小区的广播信道,从而得到更新的系统信 息。 在该实施例中, 终端无需监听其所支持的所有载波单元所对应的 所有小区的广播信道, 与图 16的方法相比, 可以大大降低终端的功 耗, 从而延长终端电池的使用时间。
[116] 图 18示出了根据本发明的另一实施例的接收更新的系统信息的 方法的示例性流程。 在该实施例中, 在通知信息中还可以包括用于指 示系统信息的变化是否影响到载波汇聚传输的信息(也称为第三信 息)。 例如, 第三信息可以指示通信系统的哪个部分的系统信息发生 了改变, 终端可以据此来判断是否对载波汇聚传输产生了影响。 具体 地, 当终端在步骤 S1807中接收到包括第三信息以及用于指示系统信 息发生变化的信息的通知信息后, 可以在步驟 1809中通过解析通知 信息而得到第三信息。 然后在步骤 S1810中, 终端根据所述第三信息 来决定是否接收更新的系统信息。 例如, 如果终端支持载波汇聚且第 三消息指示系统信息的变化不影响载波汇聚传输,则该终端可以选择 放弃接收更新的系统信息。 另一方面, 如果终端不支持载波汇聚而第 三消息指示系统信息的变化影响到载波汇聚传输,则该终端也可以放 弃接收更新的系统信息。 如果终端决定接收更新的系统信息, 则在步 骤 S1811中通过监听相应的信道来接收更新的系统信息。 步骤 S1811 可以与上述步骤 S1611获知步骤 S1711相同 , 这里不再重复。
[117] 在图 15/图 16所示的发送 /接收流程中, 更新的系统信息被封装 于第二广播信令中, 并通过第二小区的广播信道来发送 /接收。 在另 一实施例中, 还可以将更新的系统信息封装于专用信令(也称为第三 专用信令) 中, 并通过第二小区的专用信道来发送 /接收。 在该实施 例中,通知信息包括用于标识系统信息的变化所涉及的载波单元的信 息(第二信息)。 这样, 当终端接收到包括第二信息的通知信息后, 通过解析通知信息而得到第二信息;并根据第二信息来监听所涉及的 载波单元所对应的小区的专用信道, 从而得到更新的系统信息。 在该 实施例中, 终端无需监听其所支持的其他载波单元所对应的其他小 区, 可以大大降低终端的功耗, 从而延长终端电池的使用时间。
[118] 如上文已提到的, 上述广播信令或专用信令可以是新定义的信 令, 也可以是对已知信令的扩展。
[119] 作为一个示例, 第一广播信令可以是对 LTE Release 8中的寻呼 ( Paging )消息或者系统信息块(SIB1 )消息的扩展。 例如, 可以在 Paging 消息或者 SIB1 消息中增加有关第二信息和 /或第三信息的内 容。 具体地, 可以在 Paging消息和 SIB1信息中增加两个指示符, 如 第一指示符(例如可以表示为 SystemlnfoUpdateCCIndicator )和第 二指示符(例如可以表示为 CriticalSystemlnfoIndicator )。 第一指示 符包含第二信息,即用于标识哪个具体的载波单元的系统信息发生改 变, 而第二指示符包含第三信息, 即标识该系统信息的改变是否是对 载波汇聚传输产生影响(比如可以指示是哪个部分的系统信息发生改 变, 终端可以根据此信息判断是否对载波汇聚传输产生影响)。 图 19 示出了在载波汇聚的场景下采用扩展的 Paging消息或者 SIB1消息作 为第一广播信令来通知系统信息的变化的示意图。 如图 19所示, 通 过终端 102的第一小区 (与 CC 1对应的小区)的广 送经过 扩展的 Paging消息或者 SIB1消息, 然后, 通过 CC2所对应的小区 来发送更新的系统信息。 当然, 上述仅仅是第一广播信令的示例, 本 发明并不局限于此。如上所述,第一广播信令也可以是新定义的信令。
[120] 与第一广播信令相似, 第一专用信令可以是新定义的信令, 也可 以是对已知信令的扩展。 与第一广播信令相似, 第一专用信令中可以 包括有关第二信息和 /或第三信息的内容。 例如, 第一专用信令中可 包括两个指示符, 如第一指示符 ( 例如可以表示为
SystemlnfoUpdateCCIndicator ) 和第二指示符 (例如可以表示为 CriticalSystemlnfoIndicator )。 第一指示符包含第二信息, 即用于标 识哪个具体的载波单元的系统信息发生改变,而第二指示符包含第三 信息, 即标识该系统信息的改变是否是对载波汇聚传输产生影响(比 如可以指示是哪个部分的系统信息发生改变,终端可以根据此信息判 断是否对载波汇聚传输产生影响)。图 20示出了在载波汇聚的场景下 采用第一专用信令来通知系统信息的变化的示意图。 如图 20所示, 通过终端 102的第一小区 (与 CC 1对应的小区)的专用信道发送第 一专用信令(在图中表示为 SystemlnfoUpdate 消息), 然后, 通过 CC2所对应的小区来发送更新的系统信息。
[121] 图 21示出了根据本发明一个实施例、 在支持载波汇聚的通信系 统中提供更新的系统信息的方法的示例性流程。 在图 21所示的实施 例中, 通信系统的网络侧(基站)通过终端的第一小区 (特殊小区) 向终端发送更新的系统信息。
[122] 如图 21所示, 该方法包括步骤 S2102、 S2104和 S2106。
[123] 在步骤 S2102中, 当所 信系统的系统信息发生变化时,产生 第一信息。 与图 2所示的实施例不同的是, 除了用于指示系统信息发 生变化的信息以外, 该第一信息还包括更新的系统信息。
[124] 与前述实施例相似, 可以由该通信系统的主节点(例如基站)来 判断该通信系统的系统信息是否发生了变化,例如,可以从主节点(基 站)的相应的配置文件中获取相关信息, 从而确定系统信息是否发生 了变化。 更新的系统信息也可以从基站的相应配置文件中获取。
[125] 在步骤 S2104中,确定向系统信息的变化所涉及的终端发送第一 信息时将要使用的小区, 即第一小区。 这里所述的第一小区与前述实 施例相同, 不再重复。
[126] 当系统信息发生变化时,由基站根据相应的配置文件来判断应当 将该变化通知到哪个 /哪些终端(即该变化所涉及的终端), 确定每个 终端的特殊小区, 作为用于向该终端发送第一信息的小区。 可以采用 上文描述的示例中的方法来确定终端的特殊小区, 这里不再重复。
[127] 然后, 在步骤 S2106中, 通过第一小区向终端发送第一信息。
[128] 由于第一小区始终与系统的主节点 (如基站)保持连接, 因此, 通过利用上述方法将更新的系统信息直接发送给终端,能够避免终端 接收不到的情况。
[129] 图 22和图 23分别示出了通过第一小区向终端发送包括更新的系 统信息的第一信息的示例性流程。
[130] 在图 22所示的示例中, 通过第一小区向终端发送第一信息的步 骤可以包括子步骤 S2206-1和 S2206-2。 在子步骤 S2206-1中, 将在 步骤 S2102 中产生的包括更新的系统信息的第一信息封装在专用信 令(也称为第一专用信令) 中。 然后在子步驟 S2206-2中, 通过第一 小区向终端发送第一专用信令,即通过第一小区的专用信道来发送该 专用信令。
[131] 在图 23所示的示例中, 通过第一小区向终端发送第一信息的步 骤可以包括子步骤 S2306-1和 S2306-2。 在子步骤 S2306-1中, 将在 步骤 S2102 中产生的包括更新的系统信息的第一信息封装在广播信 令(也称为第一广播信令) 中。 然后在子步驟 S2306-2中, 通过第一 小区的广播信道向终端发送第一广播信令。 与图 22所示的专用信令 方式相比, 利用图 23的广播信令的方式, 可以有效降低系统的信令 负载。
[132] 图 24至图 26示出了由终端接收更新的系统信息的示例性流程。
[133] 图 24示出了根据图 21所示的实施例在支持载波汇聚的通信系统 中由终端接收更新的系统信息的示例性方法。
[134] 如图 24所示, 该方法包括步骤 S2407和 S2409。
[135] 在步骤 S2407中,终端接收基站通过第一小区发送的包括用于指 示系统信息发生变化的信息和更新的系统信息的第一信息。 换言之, 终端通过监听第一小区所对应的载波单元(可以称为第一载波单元) 来接收第一信息。
[136] 在步骤 S2409中, 终端解析接收到的第一信息, 以获知系统信息 发生变化, 并得到更新的系统信息。
[137] 通过上述接收方法, 终端可以及时得到更新的系统信息。 由于始 终通过第一小区(如特殊小区)与基站保持连接, 避免了接收不到的 情况。 另夕卜, 通过利用第一小区, 终端不需要监听其所支持的其他载 波单元所对应的小区, 可以大大降低终端的功耗, 从而延长终端电池 的使用时间。
[138] 图 21所示的发送流程与图 24所示的接收流程构成了在支持载波 汇聚的通信系统中进行系统信息更新的方法。 [139] 图 25示出了与图 22所示的发送流程示例对应的一个接收流程示 例。 如图 22所示, 第一信息是封装在专用信令(第一专用信令) 中 通过第一小区发送给终端的。 因此, 在步驟 S2507中, 终端通过其第 一小区接收封装有第一信息的第一专用信令。换言之, 终端通过监听 其第一小区的专用信道来接收第一专用信令。 与步骤 S2409相似, 在 步骤 S2509中, 终端解析第一专用信令, 从而得到更新的系统信息。
[140] 图 26示出了与图 23所示的发送流程示例对应的一个接收流程示 例。 如图 23所示, 第一信息是封 ¾^广 ^令(第一广 ^令) 中 通过第一小区的广播信道发送给终端的。 因此, 在步骤 S2607中, 终 端通过第一小区的广播信道接收封装有第一信息的第一广播信令。换 言之, 终端通过监听第一小区的广播信道来接收第一广播信令。 步骤 S2609与步骤 S2409和 S2509相似, 这里不再重复。
[141] 图 22所示的发送流程与图 25所示的接收流程、 图 23所示的发 送流程与图 26所示的接收流程分别构成了根据本发明的示例的进行 系统信息更新的方法流程。与图 22和图 25的利用专用信令的方式相 比, 图 23和图 26利用广 ^ff令的方式, 可以有效降低系统的信令负 载。
[142] 另外, 通过利用第一小区 (专用信道或广播信道), 终端不需要 监听其所支持的其他载波单元所对应的小区,可以大大降低终端的功 耗, 从而延长终端电池的使用时间。
[143] 另外, 上述实施例 /示例中以及下文中描述的系统信息的变化可 以包括由于系统的配置和架构发生变化而导致的任何系统信息的变 化。 例如, 所述变化可以包括但不限于:为某个正处于激活状态的载 波单元增加载波片段 ( Carrier Segment )、 增加扩展载波 ( Extension Carrier )、 启用 (添加)新的载波单元等等。 因此, 更新的系统信息 可以包括与这些变化相关的任何系统信息。 例如, 当为某个正处于激 活状态的载波单元增加载波片段时,更新的系统信息可以包括与该载 波片段相关的配置信息; 当为某个终端增加扩展载波时, 更新的系统 信息可以包括与该扩展载波相关的配置信息; 当启用 (添加)新的载 波单元时, 更新的系统信息可以包括与该载波单元相关的配置信息。 这里不 列举。 [144] 图 27示出了根据本发明一个实施例、 在要添加载波单元的情境 下提供系统信息的方法的示例性流程。
[145] 如图 27所示,该方法包括步骤 S2702、 S2704 、 S2706和 S2708。
[146] 在步骤 S2702中, 当要添加载波单元时, 产生第一信息。 该第一 信息可以包括用于指示要添加载波单元这一情况的信息以及与要添 加的载波单元相关的系统信息。
[147] 在步骤 S2704中,确定向要添加的载波单元所涉及的终端发送第 一信息时将务 ί吏用的小区, 即第一小区。 这里所述的第一小区与前述 实施例相同, 不再重复。
[148] 具体地, 由基站根据相应的配置文件来确定终端的特殊小区, 作 为用于向该终端发送第一信息的小区。可以采用前述示例中的方法来 确定终端的特殊小区, 这里不再重复。
[149] 在步骤 S2706中,将所述第一信息封装在专用信令(也称为第二 专用信令)中。 然后, 在步骤 S2708中, 通过第一小区向终端发送第 二专用信令, 即通过第一小区的专用信道来发送第二专用信令。
[150] 由于第一小区始终与系统的主节点 (如基站)保持连接, 因此, 通过利用上述方法将与要添加的载波单元相关的系统信息及时发送 给终端, 能够避免终端接收不到的情况。
[151] 图 28示出了与图 27所示的发送流程对应的由终端接收系统信息 的示例性流程。
[152] 如图 28所示, 该方法包括步骤 S2807、 S2809和 S2811。
[153] 在步骤 S2807中,终端通过第一小区的专用信道接收第二专用信 令。
[154] 在步骤 S2809中, 终端解析接收到的第二专用信令,从而得知要 添加载波单元, 并得到与要添加的载波单元相关的系统信息。
[155] 在步骤 S2811中,终端根据所接收的系统信息来配置要添加的载 波单元, 从而激活该载波单元。
[156] 通过上述接收方法, 终端可以及时得到更新的系统信息。 由于始 终通过第一小区(如特殊小区)与基站保持连接, 避免了接收不到的 情况。 另外, 由于采用专用信令, 不支持载波汇聚的终端不会接收到 这些信息。
[157] 图 27所示的发送流程与图 28所示的接收流程构成了在支持载波 汇聚的通信系统中传送系统信息的方法。
[158] 在一个示例中, 所述要添加的载波单元可以是扩展载波。在这种 情况下, 步骤 S2706可以包括: 将与所述扩展载波有关的配置信息封 装在第二专用信令中。 与 应地, 终端在接收到封装有与所述扩展 载波有关的配置信息的第二专用信令后, 通过解析第二专用信令, 可 以获得该配置信息, 并根据该配置信息来配置扩展载波。
[159] 在另一示例中,所述要添加的载波单元还可以包括附加于该要添 加的载波单元上的载波片段。 在这种情况下, 通信系统的网络侧(基 站)还可以通过第一小区向终端发送与所述载波片段有关的配置信 息。作为一个示例, 与载波片段有关的配置信息可以和与要添加的载 波单元相关的系统信息一起封装于第二专用信令中。 与之对应地, 终 端可以通过第一小区的专用信道接收到与所述载波有关的配置信息, 并才艮据该配置信息来配置载波片段。如果与载波片段有关的配置信息 和与要添加的载波单元相关的系统信息一起封装于第二专用信令中, 则终端通过解析第二专用信令,还可以获得与载波片段有关的配置信 息, 并根据该配置信息来配置该载波片段。
[160] 在一个示例中,与要添加的载波单元相关的系统信息可以包括与 所述要添加的载波单元相关的传输带宽配置信息以及频带指示信息。 当所述要添加的载波单元用于上行传输或者所述要添加的载波单元 用于下行传输但需要为其配置上行信息时,所述与要添加的载波单元 相关的系统信息还可以包括所述要添加的载波单元的上行载波频率、 上行传输带宽以及各个上行信道的配置信息; 当所述要添加的载波单 元用于下行传输时,所述与要添加的载波单元相关的系统信息还可以 包括所述要添加的载波单元的各个下行信道的配置信息。
[161] 作为一个示例, 所述系统信息可以采用 LTE 中的系统信息的形 式。 系统信息分为主要信息块 MIB以及一个或多个系统信息块 SIB。 MIB 包含了一些最重要的信息以及为了从小区中获取其他重要信息 的相关参数, 如下行带宽配置、 物理混合自动请求重传指示信道配置 等。 SIB中包含的信息包括终端是否被允许接入某个小区、 终端无线 资源配置信息、 小区重选信息等。 [162] 如上所述, 第二专用信令可以是一个新定义的信令, 也可以是对 已知信令的扩展。作为一个示例, 第二专用信令可以是无线资源控制 连接重配置消息(如 RRCConnectionReconfiguration消息)的扩展, 在这种情况下, 步骤 S2706包括: 将第一信息封装于所述无线资源控 制连接重配置消息中。 采用已知的信令, 能够避免重新定义新的消息 结构。
[163] 作为一个示例, 上述无线资源控制连接重配置消息 ( RRCConnectionReconfiguration 消息) 的扩展可以包括 MIB、 SIB1、 SIB2等系统信息。 具体地, MIB可以包括:
dl-Band width: 传输带宽配置信息, 下行链路的 RB数量。 phich-Config: PHICH ( Physical hybrid-ARQ indicator channel, 物理混合自动请求重传指示信道)信道配置信息。
[164] SIB1可以包括: freqBandlndicator: 频带指示标志
[165] 当需要添加的载波单元是用于上行传输或者需要配置某下行载 波单元的上行信息时, SIB2可以包括:
ul-CarrierFreq: 上行载波频率。
ul-Bandwidth: 上行传输带宽, 即上行链路的 RB数量。 rach-Config: RACH ( Random Access C h an n el , ^M : .^ 道)信道配置信息。
prach-Config: PRACH(Physical Random Access Channel, 物理随机接入信道:)信道配置信息。
pusch-Config: PUSCH ( Physical uplink shared channel, 上行物理共享信道)信道配置信息。
pucch-Config: PUCCH ( Physical uplink control channel, 上行控制信道)信道配置信息。
soundingRS-UL-Config: SoundingRS上行配置信息。
uplinkPowerControl: 上行功率控制。
ul-CyclicPrefixLength: 上行循环前缀长度。
[166] 当需要添加的载波单元用于下行传输时, SIB2可以包括: mb sfn -Sub fr ameC onfigList: 下行链路预留给 MBSFN ( Multimedia Broadcast multicast service Single Frequency Network, 多媒体广播多波单频网络)的子帧列表。
bcch-Config: BCCH信道配置信息。
pcch-Config: PCCH ( Paging Control Channel, 寻呼控制 信道)信道配置信息。
pdsch-Config: PDSCH ( Physical downlink shared channel, 下行物理共享信道)信道配置信息。
[167] 当然, 上述系统信息的示例仅仅是示例性的, 本发明并不限于这 些示例。 另外, 当采用专用信令的方式时, 上述的系统信息可以使用 增量信令来传递, 例如, 第一小区的相关信息可以作为默认信息, 这 种情况下, 可以使用开标志 "ON" 来标识相关信息的更新。 例如, 当开标志 "ON" 为 1时, 表示相关信息有更新; 当开标志 "ON" 为 0时, 表示相关信息无更新。 终端在接收到一增量信令的方式传递的 系统信息时, 可以根据开标志来确定哪些部分的系统信息有更新。
[168] 上文所述以及下文中提及的第二专用信令、第三专用信令等均可 以采用增量信令的方式进行传输。 当采用专用信令的方式发送系统信 息或者更新的系统信息时, 也可以采用增量信令的方式。 例如, 当采 用专用信令方式传输时,更新的系统信息可以仅包括发生变化的部分 所涉及的系统信息, 而不必包括没有发生变化的部分。 又如, 第二专 用信令可以仅包括与所述要添加的载波单元或者载波片段有关的、影 响到载波汇聚传输的系统信息。
[169] 图 37示出了载波汇聚场景下添加载波单元时终端获取更新的系 统信息(即与要添加的载波单元有关的系统信息)的示意图。如图 37 所示, 假设终端 UE的载波单元 CC 1对应的小区为该终端的第一小 区 (特殊小区), 并假设要为该终端添加载波单元 CC2。 首先终端与 CC 1 (特殊小区)建立 RRC ( Radio Resource Control, 无线资源控 制)连接(可以采用任何适当的方法来建立 RRC连接,这里不详述), 可以使用 RRCConnectionReconfiguration消息的扩展来携带 CC2的 系统信息, 终端通过 CC 1对应的小区获得该消息, 即可利用其中的 系统信息来激活该载波单元 CC2, 这种方法加快载波汇聚传输的实 现。 扩展载波
[170] 扩展载波是一种不能独立使用的载波类型,它从属于一个载波单 元集合,并且在这个载波单元集合中至少包含一个可以独立使用的载 波。 扩展载波必须与能够独立使用的载波单元共存。 通常不会在扩展 载波上进行系统信息的传递。 当要为当前使用的载波单元添加扩展载 波时, 可以应用图 27、 图 28所示的实施例 /示例的发送和接收方法进 行相关系统信息的传送。
[171] 此外, 扩展载波的信道配置与其他类型的载波可能不一样, 比如 可能不包含 RACH、 PDCCH、 PUCCH等信道。 因此, 在发送 SIB2 中的系统信息时, 可以将这些信息省略, 由此可以进一步减少传输的 信息量。
[172] 采用图 27、图 28所示的实施例 /示例使用第一小区的专用信令来 发送 /接收与扩展载波有关的系统信息, 能够避免监听广播信道的开 销。
[173] 如上文所述, 系统信息发生变化可以包括需要添加扩展载波的情 况。换言之,图 2-26所示的方法流程以及下文中图 31-36所示的设备、 系统等也可用于发送和接收与扩展载波有关的系统信息。这里不再重 复。
载波片段
[174] 载波片段可以理解为在后向兼容的载波单元上的数据传输扩展, 即将一些连续的资源块附加于后向兼容的载波单元上,使得整合后的 载波单元可以作为后向不兼容的载波单元被 LTE-A终端使用。
[175] 图 27-28 所示的实施例中的提供 /接收系统信息的方法可以用于 要添加的载波单元包括载波片段的情况。
[176] 图 2至图 26所示的实施例 /示例中的提供 /接收系统信息的方法以 及进行系统信息更新的方法等均可应用于为某个正在使用中(处于激 活状态)的载波单元增加载波片段的情境。 作为一个示例, 在这种情 形下, 第一信息 /通知信息可以包括用于指示要增加载波片段的信息。 作为另一示例, 可以用指示符(称为第三指示符, 例如可以表示为 CarrierSegmentlndicator )来表示为当前使用的载波单元增加载波片 段。 如果不支持载波汇聚的终端接收到基站发送的信息, 其可以通过 其中包括的第三指示符来判断是否需要接收这些系统信息。如果第三 指示符表示添加载波片段, 则该终端可以不接收系统信息。 即增加载 波片段的场景对不支持载波汇聚的终端没有影响。
[177] 在一个示例中,如果采用图 11/图 13、图 15所示的方法来为当前 使用的载波单元添加载波片段(即通过第一小区利用专用信令发送第 一信息 /通知信息、 并在相应小区 (要添加载波片段的载波单元所对 应的小区) 的广播信道发送与载波片段相关的配置信息), 则基站可 以将包括第三指示符的第一信息 /通知信息封装在第一专用信令中, 并可将第三指示符置为有效。 在相应小区的广播信道中, 虽然通过第 二广 ^令广播的是与载波片段相关的系统信息,但是并不在第二广
^ft令中添加更新通知。 这样可以与 LTE Release 8兼容。 对于不支 持 LTE-A的终端, 该系统信息的改变对于它们是透明的。 如果终端 不支持 LTE-A,则终端不会收到第一专用信令,不会去监听相应小区 的广 道上的更新的系统信息。 支持 LTE-A的终端在收到第一信 息 /更新信息并检查第三指示符为有效后, 监听相应小区的广播信道, 以接收更新的系统信息。
[178] 在另一示例中, 如果采用图 12/图 14、 图 15所示的方法来为当 前使用的载波单元添加载波片段(通过第一小区的广播信道来发送第 一信息 /通知信息, 并在相应小区的广播信道上发送更新的系统信 息)。 则基站可以将包括第三指示符的第一信息 /通知信息封装在第一 专用信令中,并可将第三指示符置为有效。在相应小区的广播信道中, 通过第二广 ^令广播的是更新的系统信息(与载波片段相关的系统 信息)。 如果终端不支持 LTE-A, 则终端收到第一信息 /通知信息后, 检查第三指示符为有效后,选择不去相应小区的广播信道监听更新的 系统信息(或者忽略后续广播的更新的系统信息)。 支持 LTE-A的终 端在收到第一信息 /更新信息并检查第三指示符为有效后, 监听相应 小区的广 道, 以接收更新的系统信息。
[179] 图 29示出了根据本发明另一实施例的、 在为当前使用的载波单 元添加载波片段的情景下提供与载波片段相关的系统信息的方法。在 图 29所示的方法中, 可以通过所述当前使用的载波单元所对应的小 区直接向终端发^目关的系统信息。 [180] 如图 29所示, 在步骤 S2902中, 当要为当前使用的载波单元添 加载波片段时, 产生与该载波片段相关的系统信息, 还可以产生指示 要添加载波片段的信息。 具体地, 可以通过通信系统的基站 目关的 配置文件中获得所述系统信息。在步骤 S2904中, 通过所述当前使用 的载波单元所对应的小区来发送所所产生的信息。作为一个示例, 可 以将系统信息封装于专用信令(称为第四专用信令)中, 并通过该小 区的专用信道来发送第四专用信令。作为另一示例, 可以将系统信息 封装于广播信令(称为第三广播信令)中, 并通过该小区的广播信道 来发送第三广播信令。
[181] 图 30示出了与图 29的发送流程对应的、在为当前使用的载波单 元添加载波片段的情景下接收与载波片段相关的系统信息的方法。如 图 30所示, 在步骤 S3003中, 终端通过所述当前使用的载波单元所 对应的小区来接收与载波片段相关的系统信息以及指示要添加载波 片段的信息。在步骤 S3005中, 终端根据接收的系统信息来配置载波 片段, 从而激活该载波片段。 在系统信息封装于第四专用信令中的情 况下, 终端通过该小区的专用信道来接收第四专用信令, 解析第四专 用信令以得到所述系统信息, 并根据所述系统信息来配置载波片段。 在系统信息封装于第三广播信令中的情况下,终端通过监听该小区的 广播信道来接收第三广播信令,解析第三广播信令以得到所述系统信 息, 并根据所述系统信息来配置载波片段。
[182] 当为当前使用的终端添加扩展载波时, 也可以使用图 29的发送 方法和图 30的接收方法。 这里不再重复。
[183] 图 31示出了根据本发明的一个实施例的在支持载波汇聚的通信 系统中提供系统信息的设备。 如图 31所示, 该设备包括: 信息产生 装置 3102、 小区确定装置 3104和发送装置 3106。
[184] 信息产生装置 3102可以用于在所述通信系统的系统信息发生变 化时产生第一信息,该第一信息包括用于指示系统信息发生变化的信 息。 可以通过通信系统的基站中的相应的配置文件来得到相关信息, 从而确定系统信息是否发生变化。
[185] 小区确定装置 3104可以用于确定系统信息的变化所涉及的终端 的第一小区, 其中所述第一小区是该终端所连接到的小区中的一个, 对应于所述终端正在使用的与所述通信系统的基站保持连接的载波 单元。 所述的第一小区 (特殊小区)与前述方法实施例 /示例中的相 同, 这里不再重复。 小区确定装置 3104可以采用前述方法实施例 /示 例中的方法来确定终端的特殊小区, 这里不再重复。
[186] 发送装置 3106可以用于通过所述第一小区向终端发送所述第一 信息
[187] 上述设备可以设置于通信系统的网络侧,如可以设置于通信系统 的基站中。 在支持载波汇聚的通信系统中, 由于第一小区始终与系统 的主节点(如基站)保持连接, 因此, 通过利用上述方法, 避免了终 端接收不到的情况, 可以实现系统信息的提供或者更新。 另外, 基站 不必通过终端的每个小区向终端发送系统信息或通知系统信息的更 新, 从而能够减轻系统的信令负担。
[188] 在一个示例中, 信息产生装置 3102还被配置用于将所述第一信 息封装于专用信令(第一专用信令) 中, 并且发送装置 3106被配置 用于通过所述第一小区向所述终端发送所述第一专用信令,即通过第 一小区的专用信道来发送第一信息。
[189] 在另一示例中, 信息产生装置 3102还被配置用于将所述第一信 息封装于广 ^令(第一广 ^令) 中, 并且发送装置 3106被配置 用于通过所述第一小区的广播信道向所述终端发送所述第一广播信 令。
[190] 图 32示出了根据本发明的实施例的在支持载波汇聚的通信系统 中接收系统信息的设备。 如图 32所示, 该设备包括接收装置 3203和 控制装置 3205。
[191] 接收装置 3203用于通过第一小区接收包括第一信息。 第一信息 包括用于指示系统信息发生变化的信息。
[192] 控制装置 3205用于解析所述第一信息以得到所述用于指示系统 信息发生变化的信息。
[193] 上述接收系统信息的设备可以设置于通信系统的终端中。通过上 述接收系统信息的设备, 终端可以及时获知系统信息的变化。 由于始 终通过第一小区(如特殊小区)与基站保持连接, 避免了接收不到的 情况。 另夕卜, 通过利用第一小区, 终端不需要监听其所支持的所有载 波单元所对应的小区, 可以大大降低终端的功耗, 从而延长终端电池 的使用时间。
[194] 在第一信息被封装于第一专用信令的情况下,所述接收装置 3203 可以被配置用于:通过所述第一小区接收封装有所述第一信息的第一 专用信令, 即通过第一小区的专用信道来接收第一信息。
[195] 在第一信息被封装于第一广播信令的情况下,所述接收装置 3203 可以被配置用于:通过所述第一小区的广播信道接收封装有所述第一 信息的第一广播信令,即通过监听第一小区的广播信道来接收第一信 息。
[196] 根据本发明的该实施例,一种用于支持载波汇聚的通信系统可以 包括上述提供系统信息的设备和接收系统信息的设备,从而实现系统 信息的传递和更新。
[197] 与图 2至图 8中所示的实施例 /示例相似, 这里, 第一信息可以 仅包括用于指示系统信息发生变化的信息(也称为通知信息)。 相关 的发送和接收设备将在下文中参考图 33和图 34来描述。
[198] 作为另一实施例, 信息产生装置 3102产生的第一信息还可以包 括更新的系统信息, 发送装置 3106通过第一小区 (例如利用上述的 第一广播信令或者第一专用信令)直接将包括更新的系统信息的第一 信息发送给终端; 而在终端侧, 控制装置 3205通过解析第一信息即 可获得更新的系统信息。作为一个示例, 第一信息还可以包括用于指 示系统信息的变化是否影响到载波汇聚传输的信息(也称为第三信 息)。 例如, 第三信息可以指示通信系统的哪个部分的系统信息发生 了变化, 终端(如控制装置)可以据此来判断该变化是否对载波汇聚 传输产生了影响。
[199] 作为另一实施例, 系统信息的变化可以包括为当前正在使用的某 个载波单元添加载波片段和 /或扩展载波的情况。 在这种情况下, 第 一信息可以包括与该载波片段和 /或扩展载波相关的系统信息。 当接 收装置 3203通过第一小区 (例如利用上述的第一广播信令或者第一 专用信令)接收到第一信息时, 控制装置 3205可以通过解析第一信 息, 得知要添加载波片段和 /或扩展载波这一情况, 并获得与该载波 片段和 /或扩展载波有关的系统信息, 并根据该系统信息对载波片段 和 /或扩展载波进行配置。 [200] 图 33示出了根据本发明一个实施例的用于在支持载波汇聚的通 信系统中通知系统信息的更新的设备。 如图 33示, 该设备包括: 通 知产生装置 3302、 小区确定装置 3304和发送装置 3306。
[201] 通知产生装置 3302可以用于在所述通信系统的系统信息发生变 化时产生通知信息,该通知信息包括用于指示系统信息发生变化的信 息。 可以理解, 该通知信息是第一信息的一个示例。
[202] 小区确定装置 3304可以用于确定系统信息的变化所涉及的终端 的第一小区, 其中所述第一小区是该终端所连接到的小区中的一个, 对应于所述终端正在使用的与所述通信系统的基站保持连接的载波 单元。 所述的第一小区 (特殊小区)与前述方法实施例 /示例中的相 同, 这里不再重复。 小区确定装置 3304可以采用前述方法实施例 /示 例中的方法来确定终端的特殊小区, 这里不再重复。
[203] 发送装置 3306可以用于通过所述第一小区向终端发送所述通知 信息。
[204] 与前述实施例相似, 在一个示例中, 通知产生装置 3302还被配 置用于将所述通知信息封装于专用信令(第一专用信令)中, 并且发 送装置 3306被配置用于通过所述第一小区向所述终端发送所述第一 专用信令, 即通过第一小区的专用信道来发送第一信息。 在另一示例 中, 通知产生装置 3302还被配置用于将所述通知信息封装于广播信 令(第一广播信令) 中, 并且发送装置 3306被配置用于通过所述第 一小区的广播信道向所述终端发送所述第一广播信令。
[205] 图 34示出了根据本发明的实施例的在支持载波汇聚的通信系统 中接》M"系统信息的更新通知的设备。 如图 34所示, 该设备包括通 知接收装置 3403和控制装置 3405。
[206] 通知接收装置 3403用于通过第一小区接收从通信系统的网络侧 (基站 )发送的通知信息。 通知信息包括用于指示系统信息发生变化 的信息。
[207] 控制装置 3405用于解析所述通知信息, 以获知通信系统的系统 信息发生了变化。
[208] 上述接收系统信息的设备可以设置于通信系统的终端中。通过上 述接收系统信息的设备, 终端可以及时得到系统信息发生变化的通 知。 由于始终通过第一小区(如特殊小区)与基站保持连接, 避免了 接收不到通知的情况。 另外, 通过利用第一小区, 终端不需要监听其 所支持的所有载波单元所对应的小区, 可以大大降低终端的功耗, 从 而延长终端电池的使用时间。
[209] 在通知信息被封装于第一专用信令来发送的情况下, 接收装置 3403可以被配置用于:通过第一小区接收封装有所述通知信息的第一 专用信令, 即通过第一小区的专用信道来接收通知信息。
[210] 在通知信息被封装于第一广播信令的情况下, 接收装置 3403可 以被配置用于:通过第一小区的广播信道接收封装有所述通知信息的 第一广播信令, 即通过监听第一小区的广播信道来接收第一信息。
[211] 在一个示例中, 通知产生装置 3302还可以被配置用于将更新的 系统信息封装于广 第二广 令)中,并且所述发送装置 3306 还可以被配置用于通过于所述系统信息的变化所涉及的载波单元对 应的小区(第二小区)的广 道向所述终端发送所述第二广 令。 在这种情况下, 终端侧的控制装置 3405在通过解析通知信息而得知 系统信息发生变化时, 可以指示接收装置 3403监听终端所支持的所 有载波单元所对应的所有小区的广 ^ft道,从而接收通信系统的网络 侧(基站)发送的更新的系统信息。
[212] 作为另一示例, 通知产生装置 3302产生的通知信息还可以包括 用于标识所述系统信息的变化所涉及的载波单元的信息(第二信息)。 这样, 当终端侧的接收装置 3403接收到包括第二信息的通知信息时, 控制装置 3405通过解析通知消息可以获得该第二信息, 并可以根据 该第二信息获知系统信息的变化所涉及的载波单元,从而指示接收装 置 3403通过监听所涉及的载波单元所对应的小区的广播信道, 从而 接收更新的系统信息。 这样可以避免终端对所有小区进行监听, 从而 降低终端的功耗, 延长终端电池的使用时间。
[213] 作为另一示例, 通知产生装置 3302产生的通知信息还可以包括 用于标识所述系统信息的变化是否影响到载波汇聚传输的信息(第三 信息)。 这样, 当终端侧的接收装置 3403接收到包括第三信息的通知 信息时, 控制装置 3405通过解析通知消息可以获得该第三信息, 并 可以根据该第三信息来决定是否接收更新的系统信息。 例如, 如果终 端支持载波汇聚且第三消息指示系统信息的变化不影响载波汇聚传 输, 则控制装置 3405可以选择放弃接收更新的系统信息, 即不指示 接收装置 3403接收更新的系统信息。 另一方面, 如果终端不支持载 波汇聚而第三消息指示系统信息的变化影响到载波汇聚传输,则该终 端也可以放弃接收更新的系统信息。 如果控制装置 3405根据第三信 息判断系统信息的变化影响到载波汇聚传输,从而决定接收更新的系 统信息, 则可以指示接收装置 3403监听相应的小区, 从而接收更新 的系统信息。
[214] 作为另一示例, 通知产生装置 3302还可以将更新的系统信息封 装于专用信令(也称为第三专用信令)中, 并通过第二小区的专用信 道来发送 /接收。 在该实施例中, 通知信息包括用于标识系统信息的 变化所涉及的载波单元的信息(第二信息)。 这样, 当终端侧的接收 装置 3403接收到包括第二信息的通知信息后,控制装置 3405可以解 析通知信息, 从而得到第二信息, 并根据第二信息来指示接收装置 3403监听所涉及的载波单元所对应的小区的专用信道,从而得到更新 的系统信息。 在该实施例中, 终端无需监听其所支持的其他载波单元 所对应的其他小区, 可以大大降低终端的功耗, 从而延长终端电池的 使用时间。
[215] 与上述方法 /设备实施例相似, 这里所述的广播信令和 /或专用信 令可以是新定义的信令,也可以是对已知信令的扩展。这里不再赘述。
[216] 根据本发明的该实施例,一种用于支持载波汇聚的通信系统可以 包括上述实施例 /示例中的通知系统信息的更新的设备以及用于接收 对系统信息的更新的通知的设备, 从而实现系统信息更新的通知。
[217] 图 35示出了根据本发明的一个实施例用于在要添加载波单元的 情况下发送系统信息的设备。 如图 35所示, 该设备包括: 专用信令 产生装置 3502、 小区确定装置 3504和发送装置 3506。
[218] 专用信令产生装置 3502可以用于在要添加载波单元时产生第一 信息,该第一信息包括用于指示要添加载波单元这一情况的信息以及 与该要添加的载波单元有关的系统信息。 专用信令产生装置 3502还 被配置用于将所述第一信息封装在第二专用信令中。
[219] 小区确定装置 3504可以用于确定系统信息的变化所涉及的终端 的第一小区, 其中所述第一小区是所述终端所连接到的小区中的一 个,对应于所述终端正在使用的与所述通信系统的基站保持连接的载 波单元。 所述的第一小区 (特殊小区) 与前述方法实施例 /示例中的 相同, 这里不再重复。 小区确定装置 3504可以采用前述方法实施例 / 示例中的方法来确定终端的特殊小区, 这里不再重复。
[220] 发送装置 3506可以用于通过所述第一小区向终端发送第二专用 信令, 即通过第一小区的专用信道来发送第一信息。
[221] 图 36示出了与图 35所示的提供系统信息的设备对应的、在要添 加载波单元的情况下接收系统信息的设备。 如图 36所示, 该设备包 括专用信令接收装置 3603和控制装置 3605。
[222] 信令接收装置 3603可以被配置用于通过第一小区接收封装有包 括与所述要添加的载波单元相关的系统信息的第一信息的第二专用 信令。 控制装置 3605被配置用于: 解析所述第二专用信令, 以获知 要添加载波单元这一情况,并获得与所述要添加的载波单元有关的系 统信息,根据与所述要添加的载波单元有关的系统信息来配置所述要 添加的载波单元。
[223] 由于采用第一小区利用专用信令来进行系统信息的传递,终端侧 不必监听所有小区的广播信道。 另外, 由于采用专用信令, 这些信息 对于不支持载波汇聚的终端是透明的。
[224] 在一个示例中, 所述要添加的载波单元可以是扩展载波, 专用信 令产生装置 3502产生的第一信息还包括与所述扩展载波有关的系统 信息。 相应地, 当信令接收装置 3603接收到封装有该第一信息的第 二专用信令时, 控制装置 3605可以通过解析第二专用信令, 获知要 添加扩展载波, 并获得与所述扩展载波有关的系统信息, 根据该信息 对扩展载波进行配置。
[225] 在另一示例中,所述要添加的载波单元还可以包括附加于该要添 加的载波单元上的载波片段。 专用信令产生装置 3502还被配置用于 产生与该载波片段有关的系统信息, 发送装置 3506还被配置用于通 过所述第一小区向所述终端发送与所述载波片段有关的配置信息。例 如, 与该载波片段有关的系统信息可以封装于第二专用信令中。相应 地,当信令接收装置 3603接收到封装有该第一信息时,控制装置 3605 可以通过解析第一信息, 获知要添加载波片段, 获得与所述载波片段 有关的系统信息, 根据该信息对载波片段进行配置。
[226] 根据本发明的该实施例,一种支持载波汇聚的通信系统可以包括 上述提供和接收系统信息的设备,从而在要添加载波单元的情况下完 成系统信息的传递。
[227] 这里所述的系统信息、 第二专用信令等可以具有与参考图 27和 图 28描述的实施例 /示例相似的格式、 相似的内容以及相似的传输方 式, 这里不再重复。
[228] 在一些实施例 /示例中, 在传送系统信息的过程中, 使用专用信 令, 同时仅传送重要的系统信息(如更新的系统信息、 获知与载波汇 目关的重要信息), 加快了载波汇聚传输的启动过程。
[229] 在一些实施例 /示例中, 在系统信息的传送过程中, 使用某个载 波单元对应的小区(如特殊小区)来发送或监听系统信息更新通知消 息, 从而增加了系统更新通知消息的接收准确率, 有效减少了监控负 载和终端的能量损耗, 并延长了终端电池的使用时间。
[230] 应理解, 上述实施例和示例是示例性的, 而不是穷举性的, 本发 明不应被视为局限于任何具体的实施例或示例。
[231] 在上述实施例和示例中, 采用了 "第一"、 "第二"、 "第三" 等表 述(例如第一专用信令、 第二专用信令等)。 本领域的普通技术人员 应理解, 上述表述只是为了对术语作文字上的区分, 而并非表示其顺 序或任何其他限定。
[232] 作为一个示例,上述方法的各个步骤以及上述装置的各个组成模 块和 /或单元可以实施为通信网络的主节点 (例如基站) 中的软件、 固件、硬件或其组合,并作为该基站的无线资源控制设备中的一部分。 上述装置中各个组成模块、 单元通过软件、 固件、 硬件或其组合的方 式进行配置时可使用的具体手段或方式为本领域技术人员所熟知,在 此不再赘述。
[233] 作为一个示例,可以在已有基站无线资源控制设备中实施根据本 发明上述实施例的方法和 /或装置, 其中对已有基站无线资源控制设 备的各组成部分作一定修改即可。
[234] 作为一个示例, 在通过软件或固件实现的情况下, 可以从存储介 质或网络向具有专用硬件结构的计算机(例如图 38所示的通用计算 机 3800 )安装构成该软件的程序, 该计算机在安装有各种程序时, 能 够执行各种功能等。
[235] 在图 38中 ,中央处理单元 (CPU)3801根据只读存储器 (ROM)3802 中存储的程序或从存储部分 3808加载到随机存取存储器 (RAM)3803 的程序执行各种处理。在 RAM 3803中,也根据需要存储当 CPU 3801 执行各种处理等等时所需的数据。 CPU 3801、 ROM 3802和 RAM 3803 经由总线 3804彼此链路。 输入 /输出接口 3805 也链路到总线 3804„
[236] 下述部件链路到输入 /输出接口 3805:输入部分 3806 (包括键盘、 鼠标等等) 、 输出部分 3807 (包括显示器, 比如阴极射线管 (CRT)、 液晶显示器 (LCD)等, 和扬声器等)、存储部分 3808 (包括硬盘等)、 通信部分 3809 (包括网络接口卡比如 LAN卡、 调制解调器等)。 通 信部分 3809经由网络比如因特网执行通信处理。 根据需要, 驱动器 3810也可链路到输入 /输出接口 3805。可拆卸介质 3811比如磁盘、光 盘、 磁光盘、 半导体存储器等等根据需要被安装在驱动器 3810上, 使得从中读出的计算 呈序根据需要被安装到存储部分 3808中。
[237] 在通过软件实现上述系列处理的情况下,从网络比如因特网或存 储介质比如可拆卸介质 3811安装构成软件的程序。
[238] 本领域的技术人员应当理解, 这种存储介质不局限于图 38所示 的其中存储有程序、与设备相分离地分发以向用户提供程序的可拆卸 介质 3811。 可拆卸介质 3811的例子包含磁盘 (包含软盘 (注册商标):)、 光盘 (包含光盘只读存储器 (CD-ROM)和数字通用盘 (DVD))、 磁光盘 (包含迷你盘 (MD)(注册商标))和半导体存储器。 或者, 存储介质可 以是 ROM 902、 存储部分 3808中包含的硬盘等等, 其中存有程序, 并且与包含它们的设备一起被分发给用户。
[239] 本发明还提出一种存储有机器可读取的指令代码的程序产品。所 述指令代码由机器读取并执行时 ,可执行上述根据本发明实施例的方 法。
[240] 相应地,用于承载上述存储有机器可读取的指令代码的程序产品 的存储介质也包括在本发明的公开中。所述存储介质包括但不限于软 盘、 光盘、 磁光盘、 存储卡、 存储棒等等。
[241] 在上面对本发明具体实施例的描述中,针对一种实施方式描述和 /或示出的特征可以以相同或类似的方式在一个或更多个其它实施方 式中使用, 与其它实施方式中的特征相组合, 或替代其它实施方式中 的特征。
[242] 应该强调, 术语 "包括 /包含" 在本文使用时指特征、 要素、 步 骤或组件的存在, 但并不排除一个或更多个其它特征、要素、 步骤或 组件的存在或附加。
[243] 此外, 本发明的方法不限于按照说明书中描述的时间顺序来执 行, 也可以按照其他的时间顺序地、 并行地或独立地执行。 例如, 一 些实施例 /示例中确定第一小区的步骤可以在产生第一信息 /通知信息 的步骤前执行。 因此, 本说明书中描述的方法的执行顺序不对本发明 的技术范围构成限制。
[244] 尽管上面已经通过对本发明的具体实施例的描述对本发明进行 了披露, 但是, 应该理解, 上述的所有实施例和示例均是示例性的, 而非限制性的。本领域的技术人员可在所附权利要求的精神和范围内 设计对本发明的各种修改、 改进或者等同物。 这些修改、 改进或者等 同物也应当被认为包括在本发明的保护范围内。

Claims

权利 要求 书
1. 一种支持载波汇聚的通信系统中的提供系统信息的方法, 包 括 ··
在所述通信系统的系统信息发生变化时,产生包括用于指示系统 信息发生变化的信息的第一信息;
确定系统信息的变化所涉及的终端的第一小区,其中所述第一小 区是所述终端连接到的小区中的一个,且对应于所述终端正在使用的 与所述通信系统的基站保持连接的载波单元; 以及
通过所述第一小区向所述终端发送所述第一信息。
2. 如权利要求 1所述的方法,其中,通过所述第一小区向所述终 端发送所述第一信息包括:
将所述第一信息封装于第一专用信令中, 以及
通过所述第一小区向所述终端发送所述第一专用信令。
3. 如权利要求 1所述的方法,其中,通过所述第一小区向终端发 送所述第一信息包括:
将所述第一信息封装于第一广 令中; 以及
通过所述第一小区的广播信道向所述终端发送所述第一广播信 令。
4. 如权利要求 2或 3所述的方法, 还包括:
将更新的系统信息封装于第二广 令中; 以及
通过与所述系统信息的变化所涉及的载波单元对应的第二小区 的广播信道向所述终端发送所述第二广播信令。
5. 如权利要求 4所述的方法,其中,所述第一信息还包括用于标 识所述系统信息的变化所涉及的载波单元的第二信息。
6. 如权利要求 1所述的方法, 其中, 所述第一信息还包括: 用于 指示所述系统信息的变化是否影响到载波汇聚传输的第三信息。
7. 如权利要求 1所述的方法,其中, 当所述系统信息的变化包括 要为该变化所涉及的载波单元添加载波片段时,所述第一信息还包括 与所述载波片段有关的配置信息。
8. 如权利要求 1所述的方法,其中,所述第一信息还包括更新的 系统信息。
9. 如权利要求 1所述的方法,其中,所述系统信息的变化包括为 所述终端添加载波单元,所述第一信息还包括与要添加的载波单元相 关的系统信息, 并且, 通过第一小区向终端发送所述第一信息包括: 将所述第一信息封装在第二专用信令中; 以及
通过所述第一小区向将所述终端发送所述第二专用信令。
10. 如权利要求 9所述的方法, 其中, 所述要添加的载波单元为 扩展载波, 并且
其中,将与所述要添加的载波单元相关的系统信息封装在第一专 用信令中包括:将与所述扩展载波有关的配置信息封装在所述第一专 用信令中。
11. 如权利要求 9所述的方法, 其中, 所述要添加的载波单元包 括附加于该要添加的载波单元上的载波片段, 所述方法还包括:
通过所述第一小区向所述终端发送与所述载波片段有关的配置 息 o
12. 如权利要求 9所述的方法, 其中, 所述系统信息包括与所述 要添加的载波单元相关的传输带宽配置信息以及频带指示信息。
13. 如权利要求 12所述的方法, 其中,
当所述要添加的载波单元用于上行传输或者所述要添加的载波 单元用于下行传输但需要为其配置上行信息时,所述系统信息还包括 所述要添加的载波单元的上行载波频率、上行传输带宽以及各个上行 信道的配置信息;
当所述要添加的载波单元用于下行传输时,所述系统信息还包括 所述要添加的载波单元的各个下行信道的配置信息。
14. 如权利要求 9所述的方法, 其中, 所述第二专用信令为现有 的无线资源控制连接重配置消息的扩展, 并且
其中, 将所述第一信息封装在第二专用信令中的步骤包括: 将所 述第一信息封装于所述现有的无线资源控制连接重配置消息中。
15. 如权利要求 9所述的方法, 其中, 所述第二专用信令仅包括 与所述要添加的载波单元有关的、 影响到载波汇聚传输的系统信息。
16. 一种支持载波汇聚的通信系统中的提供系统信息的设备, 包 括 ··
信息产生装置,用于在所述通信系统的系统信息发生变化时产生 包括用于指示系统信息发生变化的信息的第一信息;
小区确定装置,用于确定系统信息的变化所涉及的终端的第一小 区, 其中所述第一小区是所述终端连接到的小区中的一个, 且对应于 所述终端正在使用的与所述通信系统的基站保持连接的载波单元; 以 及
发送装置, 用于通过所述第一小区向终端发送所述第一信息。
17. 如权利要求 16所述的设备, 其中,
所述信息产生装置还被配置用于将所述第一信息封装于第一专 用信令中, 以及
所述发送装置被配置用于通过所述第一小区向所述终端发送所 述第一专用信令。
18. 如权利要求 16所述的设备, 其中,
所述信息产生装置还被配置用于将所述第一信息封装于第一广 令中; 以及
所述发送装置被配置用于通过所述第一小区的广播信道向所述 终端发送所述第一广播信令。
19. 如权利要求 17或 18所述的设备, 其中,
所述信息产生装置还被配置用于将更新的系统信息封装于第二 广 ^令中; 以及
所述发送装置还被配置用于通过于所述系统信息的变化所涉及 的载波单元对应的第二小区的广播信道向所述终端发送所述第二广 令。
20. 如权利要求 19所述的设备,其中,所述第一信息还包括用于 标识所述系统信息的变化所涉及的载波单元的第二信息。
21. 如权利要求 16所述的设备, 其中, 所述第一信息还包括: 用 于指示所述系统信息的变化是否影响到载波汇聚传输的第三信息。
22. 如权利要求 16所述的设备,其中, 当系统信息的变化包括要 为该变化所涉及的载波单元添加载波片段时,所述第一信息还包括与 所述载波片段有关的配置信息。
23. 如权利要求 16所述的设备,其中,所述第一信息还包括更新 的系统信息。
24. 如权利要求 16所述的设备,其中,所述系统信息的变化包括 为所述终端添加载波单元,所述第一信息还包括与要添加的载波单元 相关的系统信息, 并且
其中,所述信息产生装置被配置用于将所述第一信息封装在第二 专用信令中;并且所述发送装置被配置用于通过所述第一小区向所述 终端发送所述第二专用信令。
25. 如权利要求 24所述的设备,其中,所述要添加的载波单元为 扩展载波, 所述第一信息还包括与所述扩展载波有关的配置信息, 并 且
其中,所述信息产生装置被配置用于将所述第一信息封装在所述 第二专用信令中。
26. 如权利要求 24所述的设备,其中,所述要添加的载波单元包 括附加于该要添加的载波单元上的载波片段, 并且
其中, 所述发送装置还被配置用于: 通过所述第一小区向所述终 端发送与所述载波片段有关的配置信息。
27. 如权利要求 24所述的设备,其中,所述系统信息包括与所述 要添加的载波单元相关的传输带宽配置信息以及频带指示信息。
28. 如权利要求 27所述的设备, 其中,
当所述要添加的载波单元用于上行传输或者所述要添加的载波 单元用于下行传输但需要为其配置上行信息时,所述系统信息还包括 所述要添加的载波单元的上行载波频率、上行传输带宽以及各个上行 信道的配置信息;
当所述要添加的载波单元用于下行传输时,所述系统信息还包括 所述要添加的载波单元的各个下行信道的配置信息。
29. 如权利要求 24所述的设备,其中,所述第二专用信令为现有 的无线资源控制连接重配置消息的扩展, 并且
其中, 所述信息产生装置被配置用于: 将所述第一信息封装于所 述现有的无线资源控制连接重配置消息中。
30. 如权利要求 24所述的设备,其中,所述第二专用信令仅包括 与所述要添加的载波单元有关的、 影响到载波汇聚传输的系统信息。
31. 一种支持载波汇聚的通信系统中的接收系统信息的方法, 包 括 ··
通过第一小区接收包括用于指示系统信息发生变化的信息的第 一信息,其中所述第一小区对应于终端正在使用的与所述通信系统的 基站保持连接的载波单元; 及
解析所述第一信息 , 以得到用于指示系统信息发生变化的信息。
32. 如权利要求 31所述的方法,其中,通过所述第一小区接收所 述第一信息包括:
通过所述第一小区接收封装有所述第一信息的第一专用信令。
33. 如权利要求 31所述的方法,其中,通过所述第一小区接收所 述第一信息包括:
通过所述第一小区的广播信道接收封装有所述第一信息的第一 广播信令。
34. 如权利要求 32或 33所述的方法, 其中, 所述第一信息还包 括用于标识所述系统信息的变化所涉及的载波单元的第二信息,所述 方法还包括:
从所述第一信息中获得用于标识所述系统信息的变化所涉及的 载波单元的第二信息; 及
通过与所涉及的载波单元对应的第二小区的广播信道来接收封 装有更新的系统信息的第二广 ^令。
35. 如权利要求 32或 33所述的方法, 还包括:
通过监听与所述终端使用的每个载波单元对应的每个小区的广 ^ίΤϋ, 来接收封装有更新的系统信息的第二广 ^令。
36. 如权利要求 31所述的方法, 其中, 所述第一信息还包括: 用 于指示所述系统信息的变化是否影响到载波汇聚传输的第三信息,所 述方法还包括:
根据所述第三信息来决定是否接收更新的系统信息。
37. 如权利要求 31所述的方法,其中,所述系统信息的变化包括 要为该变化所涉及的载波单元添加载波片段,所述第一信息还包括与 所述载波片段有关的配置信息, 并且
其中, 所述方法还包括:
从所述第一信息中获得与所述载波片段有关的配置信息, 以及 才艮据所述载波片段有关的配置信息来配置所述载波片段。
38. 如权利要求 31所述的方法,其中,所述第一信息还包括更新 的系统信息, 并且所述方法还包括:
从所述第一信息中获得所述更新的系统信息。
39. 如权利要求 31所述的方法,其中,所述系统信息的变化包括 为所述终端添加载波单元,所述第一信息还包括由要添加的载波单元 相关的系统信息, 并且, 通过所述第一小区接收所述第一信息的步骤 包括: 通过所述第一小区接收封装有所述第一信息的第二专用信令; 解析所述第一信息的步骤包括: 解析所述第二专用信令, 以从所述第 一信息中获得与所述要添加的载波单元相关的系统信息,所述方法还 包括:
根据与所述要添加的载波单元有关的系统信息来配置所述要添 加的载波单元。
40. 如权利要求 39所述的方法,其中,所述要添加的载波单元为 扩展载波, 并且
其中,通过所述第一小区接收封装有第一信息的第二专用信令包 括:通过所述第一小区接收封装有包括与所述扩展载波有关的配置信 息的第一信息的第二专用信令。
41. 如权利要求 39所述的方法,其中,所述要添加的载波单元包 括附加于该要添加的载波单元上的载波片段, 所述方法还包括: 通过所述第一小区接收与所述载波片段有关的配置信息; 及 根据与所述载波片段有关的配置信息来配置所述载波片段。
42. 如权利要求 39所述的方法,其中,所述系统信息包括与所述 要添加的载波单元相关的传输带宽配置信息以及频带指示信息。
43. 如权利要求 42所述的方法, 其中,
当所述要添加的载波单元用于上行传输或者所述要添加的载波 单元用于下行传输但需要为其配置上行信息时,所述系统信息还包括 所述要添加的载波单元的上行载波频率、上行传输带宽以及各个上行 信道的配置信息;
当所述要添加的载波单元用于下行传输时,所述系统信息还包括 所述要添加的载波单元的各个下行信道的配置信息。
44. 如权利要求 39所述的方法,其中,所述第二专用信令为现有 的无线资源控制连接重配置消息的扩展。
45. 如权利要求 39所述的方法,其中,所述第二专用信令仅包括 与所述要添加的载波单元有关的、 影响到载波汇聚传输的系统信息。
46. 一种支持载波汇聚的通信系统中的接收系统信息的设备, 包 括 ··
接收装置,用于通过第一小区接收包括用于指示系统信息发生变 化的信息的第一信息,其中所述第一小区对应于所述设备正在使用的 与所述通信系统的基站保持连接的载波单元; 及
控制装置,用于解析所述第一信息以得到所述用于指示系统信息 发生变化的信息。
47. 如权利要求 46所述的设备,其中,所述接收装置被配置用于: 通过所述第一小区接收封装有所述第一信息的第一专用信令。
48. 如权利要求 46所述的设备,其中,所述接收装置被配置用于: 通过所述第一小区的广播信道接收封装有所述第一信息的第一广播 信令。
49. 如权利要求 47或 48所述的设备, 其中, 所述第一信息还包 括用于指示所述系统信息的变化所涉及的载波单元的第二信息,并且 所述控制装置还被配置用于:从所述第一信息中获得所述系统信息的 变化所涉及的载波单元,并控制所述接收装置通过与所涉及的载波单 元对应的第二小区的广播信道来接收封装有更新的系统信息的第二 广播信令。
50. 如权利要求 47或 48所述的设备, 其中, 所述接收装置还被 配置用于:通过监听与正在使用的每个载波单元对应的每个小区的广 道, 来接收封装有更新的系统信息的第二广 ^令。
51. 如权利要求 46所述的设备,其中,所述第一信息还包括用于 指示所述系统信息的变化是否影响到载波汇聚传输的第三信息,并且 所述控制装置还被配置用于: 从所述第一信息中获得所述第三信息, 并根据所述第三信息来决定是否指示所述接收装置接收更新的系统 息 o
52. 如权利要求 46所述的设备,其中,所述系统信息的变化包括 要为该变化所涉及的载波单元添加载波片段,所述第一信息还包括与 所述载波片段有关的配置信息, 并且
其中, 所述控制装置还被配置用于: 从所述第一信息中得到与所 述载波片段有关的配置信息,以及根据与所述载波片段有关的配置信 息来配置所述载波片段。
53. 如权利要求 46所述的设备,其中,所述第一信息还包括更新 的系统信息, 并且
其中, 所述控制装置还配置用于: 从所述第一信息中获得所述更 新的系统信息。
54. 如权利要求 46所述的设备,其中,所述系统信息的变化包括 添加载波单元,所述第一信息还包括与所述要添加的载波单元相关的 系统信息, 并且
所述接收装置被配置用于通过所述第一小区接收封装有包括与 所述要添加的载波单元相关的系统信息的第一信息的第二专用信令; 所述控制装置还被配置用于: 解析所述第二专用信令, 以获得与 所述要添加的载波单元有关的系统信息,并才艮据与所述要添加的载波 单元有关的系统信息来配置所述要添加的载波单元。
55. 如权利要求 54所述的设备,其中,所述要添加的载波单元为 扩展载波, 并且 其中,所述接收装置被配置用于通过所述第一小区接收封装有与 所述扩展载波有关的配置信息的第二专用信令。
56. 如权利要求 54所述的设备,其中,所述要添加的载波单元包 括附加于该要添加的载波单元上的载波片段, 并且
其中,所述接收装置还被配置用于通过所述第一小区接收与所述 载波片段有关的配置信息,并且所述控制装置还被配置用于根据与所 述载波片段有关的配置信息来配置所述载波片段。
57. 如权利要求 54所述的设备,其中,所述系统信息包括与所述 要添加的载波单元相关的传输带宽配置信息以及频带指示信息。
58. 如权利要求 57所述的设备, 其中,
当所述要添加的载波单元用于上行传输或者所述要添加的载波 单元用于下行传输但需要为其配置上行信息时,所述系统信息还包括 所述要添加的载波单元的上行载波频率、上行传输带宽以及各个上行 信道的配置信息;
当所述要添加的载波单元用于下行传输时,所述系统信息还包括 所述要添加的载波单元的各个下行信道的配置信息。
59. 如权利要求 54所述的设备,其中,所述第二专用信令为现有 的无线资源控制连接重配置消息的扩展。
60. 如权利要求 54所述的设备,其中,所述第二专用信令仅包括 与所述要添加的载波单元有关的、 影响到载波汇聚传输的系统信息。
61. 一种支持载波汇聚的通信系统中的收发系统信息的方法, 包 括 ··
在所述通信系统的系统信息发生变化时,产生包括用于指示系统 信息发生变化的信息的第一信息;
确定系统信息的变化所涉及的终端的第一小区,其中所述第一小 区是所述终端连接到的小区中的一个,且对应于所述终端正在使用的 与所述通信系统的基站保持连接的载波单元;
通过所述第一小区向所述终端发送所述第一信息;
由所述终端通过所述第一小区接收所述第一信息; 及
由所述终端解析所述第一信息,以得到所述用于指示系统信息发 生变化的信息。
62. 一种通信系统, 其中, 所述通信系统支持载波汇聚, 并且包 括用于提供系统信息的第一设备以及用于接收系统信息的第二设备, 其中, 所述第一设备包括:
信息产生装置,用于在所述通信系统的系统信息发生变化时产生 包括用于指示系统信息发生变化的信息的第一信息;
小区确定装置,用于确定系统信息的变化所涉及的终端的第一小 区, 其中所述第一小区是所述终端连接到的小区中的一个, 且对应于 所述终端正在使用的与所述通信系统的基站保持连接的载波单元;及 发送装置, 用于通过所述第一小区向终端发送所述第一信息, 所述第二设备包括:
接收装置, 用于通过所述第一小区接收所述第一信息; 及 控制装置,用于解析所述第一信息以得到所述用于指示系统信息 发生变化的信息。
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