US20130107800A1 - Mobile communication method and mobile station - Google Patents

Mobile communication method and mobile station Download PDF

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Publication number
US20130107800A1
US20130107800A1 US13/643,553 US201113643553A US2013107800A1 US 20130107800 A1 US20130107800 A1 US 20130107800A1 US 201113643553 A US201113643553 A US 201113643553A US 2013107800 A1 US2013107800 A1 US 2013107800A1
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Prior art keywords
mobile station
measobject
measid
pcc
present
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Inventor
Mikio Iwamura
Anil Umesh
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NTT Docomo Inc
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NTT Docomo Inc
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/06—Reselecting a communication resource in the serving access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0057—Physical resource allocation for CQI
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0096—Indication of changes in allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0058—Transmission of hand-off measurement information, e.g. measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/30—Connection release
    • H04W76/34—Selective release of ongoing connections
    • H04W76/36—Selective release of ongoing connections for reassigning the resources associated with the released connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L12/5602—Bandwidth control in ATM Networks, e.g. leaky bucket
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/15—Flow control; Congestion control in relation to multipoint traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/0085—Hand-off measurements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/0085—Hand-off measurements
    • H04W36/0094—Definition of hand-off measurement parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/04—Network layer protocols, e.g. mobile IP [Internet Protocol]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/08—Trunked mobile radio systems

Definitions

  • the present invention relates to a mobile communication method and a mobile station.
  • a radio base station eNB is configured to transmit “MeasConfig” including “MeasObject”, “ReportConfig”, and “MeasID” to a mobile station UE.
  • the “MeasObject” is information for designating a measurement object carrier based on RAT and a frequency
  • the “ReportConfig” is information for designating an event such as A 1 to A 5 or B 1 and B 2 , or a transmission trigger of “Measurement Report” such as “Periodical”.
  • the “MeasId” is information for linking the “MeasObject” to the “ReportConfig” as shown in FIG. 7 .
  • the mobile station UE is configured to perform only measurement of the “MeasObject” associated with the “ReportConfig” based on the “MeasId”.
  • the mobile station UE when “Inter-frequency Handover (different frequency handover)” or “Inter-frequency Re-establishment (different frequency re-establishment)” has been generated, the mobile station UE is configured to autonomously switch a “MeasId” link destination.
  • the mobile station UE when a serving cell (Serving) is changed from a cell in “F 1 ” designated by “MeasObject# 1 ” to a cell in “F 2 ” designated by “MeasObject# 2 ” by the “Inter-frequency Handover” or the “Inter-frequency Re-establishment”, the mobile station UE is configured to change a link destination of “MeasId# 1 ” and “MeasId# 2 ” from the “MeasObject# 1 ” to the “MeasObject# 2 ”, and change a link destination of “MeasId# 3 ” and “MeasId# 4 ” from the “MeasObject# 2 ” to the “MeasObject# 1 ”.
  • the mobile station UE when the serving cell (Serving) is changed from the cell in the “F 1 ” designated by the “MeasObject# 1 ” to a cell in “F 4 ”, in which the “MeasObject” has not been set, by the “Inter-frequency Handover” or the “Inter-frequency Re-establishment”, the mobile station UE is configured to release the “MeasId# 1 ” and the “MeasId# 2 ” linked to the “MeasObject# 1 ”.
  • a radio base station eNB is configured to add “MeasObject# 4 ” for designating the “F 4 ” and link the “MeasId” to the “MeasObject# 4 ” by “RRC Connection Reconfiguration” immediately after “Handover Command” or “Re-establishment”.
  • the mobile station UE is configured to be able to perform CA (Carrier Aggregation) communication with the radio base station eNB by using PCC (a Primary Component Carrier) and one or a plurality of SCCs (Secondary Component Carriers) having different carrier frequencies (EARFCN: E-UTRA Absolute Radio Frequency Channel Number).
  • CA Carrier Aggregation
  • SCC Secondary Component Carriers
  • Such a CA communication has a problem that since a serving cell exists in each PCC and each SCC, it is not possible to apply a method of switching and a method of releasing the aforementioned “MeasId”.
  • the present invention has been achieved in view of the above-described problems, and an object thereof is to provide a mobile communication method and a mobile station, by which it is possible to appropriately switch and release “MeasId” in CA communication.
  • a first aspect of the present invention is summarized as a mobile communication method in which a mobile station communicates with a radio base station by using a primary carrier and one or a plurality of secondary carriers having different carrier frequencies, the method including the steps of: (A) transmitting, from the mobile station to the radio base station, a measurement report including a measurement result of a measurement object carrier, when the mobile station links and manages a measurement ID, the measurement object carrier, and a report condition, and when the mobile station determines that the report condition is satisfied; and (B) determining, at the mobile station, whether or not to release the measurement ID according to a type of a carrier designated by the measurement object carrier, when a change has occurred in a combination of the primary carrier and the secondary carriers.
  • a second aspect of the present invention is summarized as a mobile station, which is configured to communicate with a radio base station by using a primary carrier and one or a plurality of secondary carriers having different carrier frequencies, including: a transmission unit configured to transmit a measurement report including a measurement result of a measurement object carrier to the radio base station, when a measurement ID, the measurement object carrier, and a report condition are linked and managed, and when it is determined that the report condition is satisfied; and a measurement processing unit configured to determine whether or not to release the measurement ID according to a type of a carrier designated by the measurement object carrier, when a change has occurred in a combination of the primary carrier and the secondary carriers.
  • a third aspect of the present invention is summarized as a mobile communication method, in which a mobile station communicates with a radio base station by using a primary carrier and one or a plurality of secondary carriers having different carrier frequencies, including: a step of releasing, at the mobile station, configuration information related to the secondary carriers when a change has occurred in the combinations of the primary carrier and the secondary carriers.
  • a fourth aspect of the present invention is summarized as a mobile station, which is configured to be able to communicate with a radio base station by using a primary carrier and one or a plurality of secondary carriers having different carrier frequencies, is configured to release configuration information related to the secondary carriers when a change has occurred in the combinations of the primary carrier and the secondary carriers.
  • FIG. 1 is a diagram showing the entire configuration of a mobile communication system according to a first embodiment of the present invention.
  • FIG. 2 is a functional block diagram of a mobile station according to the first embodiment of the present invention.
  • FIG. 3 is a flowchart illustrating an operation of the mobile station according to the first embodiment of the present invention.
  • FIG. 4 is a diagram for explaining a state in which measurement configuration is changed in the mobile station according to the first embodiment of the present invention.
  • FIG. 5 is a diagram for explaining a state in which measurement configuration is changed in the mobile station according to the first embodiment of the present invention.
  • FIG. 6 is a flowchart illustrating an operation of a mobile station according to a second embodiment of the present invention.
  • FIG. 7 is a diagram for explaining a state in which measurement configuration is changed in a mobile station in the conventional art.
  • FIG. 8 is a diagram for explaining a state in which measurement configuration is changed in a mobile station in the conventional art.
  • FIG. 9 is a diagram for explaining a state in which measurement configuration is changed in a mobile station in the conventional art.
  • the mobile communication system according to the present embodiment is an LTE-Advanced (LTE Release-10) mobile communication system.
  • a mobile station UE is configured to be able to perform CA communication by using PCC and one or a plurality of SCCs having different carrier frequencies (EARFCN).
  • the mobile communication system is configured to be able to use CCs of EARFCN # 1 through EARFCN # 5 during the CA communication.
  • the mobile station UE performs CA communication by setting the CC of EARFCN # 1 as “PCC”, the CC of EARFCN # 2 as “SCC # 1 ”, and the CC of EARFCN # 3 as “SCC # 2 ”.
  • the serving cell in the PCC of the mobile station UE is “Pcell”
  • the serving cell in the SCC # 1 of the mobile station UE is “Scell # 1 ”
  • the serving cell in the SCC # 2 of the mobile station UE is “Scell # 2 ”.
  • the mobile station UE includes a re-establishment processing unit 11 , a handover processing unit 12 , a measurement processing unit 13 , and a transmission unit 14 .
  • the re-establishment processing unit 11 is configured to perform a process related to reconnection (for example, Inter-frequency Re-establishment) of the mobile station UE.
  • the handover processing unit 12 is configured to perform a process related to handover (for example, Inter-frequency Handover) of the mobile station UE.
  • the measurement processing unit 13 is configured to perform a measurement process of a measurement object carrier, which has been designated by a “MeasObject”, when a “MeasId”, the “MeasObject”, and a “ReportConfig” are linked and managed.
  • the measurement processing unit 13 is configured to determine whether or not to release the “MeasId” according to the type of CC designated by the “MeasObject”, when a change has occurred in the combinations of the PCC and the SCCs. A detailed determination method will be described later.
  • the transmission unit 14 is configured to transmit a “Measurement Report” including a measurement result of the “MeasObject” to a radio base station eNB, when the “MeasId”, the “MeasObject”, and the “ReportConfig” are linked and managed and it is determined that the “ReportConfig” is satisfied.
  • step S 101 the mobile station UE releases all “MeasIds” linked to the “ReportConfig” with a “trigger type” of “Periodical”.
  • step S 102 the mobile station UE determines whether or not the “MeasObject” for designating PCC (T-PCC) after change is managed.
  • step S 103 A When it is determined that the “MeasObject” is managed, the present operation proceeds to step S 103 A. When it is determined that the “MeasObject” is not managed, the present operation proceeds to step S 103 B.
  • step S 103 A the mobile station UE determines whether or not the “MeasObject”, to which a corresponding “MeasId” has been linked, designates PCC (S-PCC) before the change.
  • step S 104 A When it is determined that the “MeasObject” designates the PCC (S-PCC) before the change, the present operation proceeds to step S 104 A. When it is determined that the “MeasObject” does not designate the PCC (S-PCC) before the change, the present operation proceeds to step S 105 A.
  • step S 104 A the mobile station UE changes a link destination of the “MeasId” from the “MeasObject” having designated the S-PCC to the “MeasObject” having designated the T-PCC.
  • step S 105 A the mobile station UE determines whether or not the “MeasObject”, to which the corresponding “MeasId” has been linked, designates the SCC before the change.
  • step S 106 A When it is determined that the “MeasObject” designates the SCC, the present operation proceeds to step S 106 A. When it is determined that the “MeasObject” does not designate the SCC, the present operation proceeds to step S 107 A.
  • step S 106 A the mobile station UE releases the “MeasId”.
  • step S 107 A the mobile station UE maintains the link destination of the “MeasId” without a change. In addition, instep S 107 A, the mobile station UE may release the “MeasId”.
  • step S 108 A the mobile station UE determines whether or not the processes of steps S 103 A to S 107 A have been performed for all “MeasIds”.
  • the mobile station UE When it is determined that the processes of steps S 103 A to S 107 A have been performed, the present operation is completed. When it is determined that the processes of steps S 103 A to S 107 A have not been performed, the mobile station UE returns to step S 103 A and performs the processes of steps S 103 A to S 107 A for a subsequent “MeasId”.
  • step S 103 B the mobile station UE determines whether or not the “MeasObject”, to which the corresponding “MeasId” has been linked, designates the PCC (S-PCC) before the change.
  • step S 104 B When it is determined that the “MeasObject” designates the PCC (S-PCC) before the change, the present operation proceeds to step S 104 B. When it is determined that the “MeasObject” does not designate the PCC (S-PCC) before the change, the present operation proceeds to step S 105 B.
  • step S 104 B the mobile station UE releases the “MeasId”.
  • step S 105 B the mobile station UE determines whether or not the “MeasObject”, to which the corresponding “MeasId” has been linked, designates the SCC before the change.
  • step S 106 B When it is determined that the “MeasObject” designates the SCC, the present operation proceeds to step S 106 B. When it is determined that the “MeasObject” does not designate the SCC, the present operation proceeds to step S 107 B.
  • step S 106 B the mobile station UE releases the “MeasId”.
  • step S 107 B the mobile station UE maintains the link destination of the “MeasId” without a change. In addition, in step S 107 B, the mobile station UE may release the “MeasId”.
  • step S 108 B the mobile station UE determines whether or not the processes of steps S 103 B to S 107 B have been performed for all “MeasIds”.
  • the mobile station UE When it is determined that the processes of steps S 103 B to S 107 B have been performed, the present operation is completed. When it is determined that the processes of steps S 103 B to S 107 B have not been performed, the mobile station UE returns to step S 103 B and performs the processes of steps S 103 B to S 107 B for a subsequent “MeasId”.
  • the mobile station UE since “MeasObject# 1 ”, to which the “MeasId# 1 ” has been linked, designates the PCC (S-PCC) before the change, the mobile station UE changes the link destination of the “MeasId# 1 ” from the “MeasObject# 1 ” having designated the S-PCC to the “MeasObject# 3 ” having designated the T-PCC.
  • S-PCC PCC
  • the mobile station UE changes the link destination of the “MeasId# 2 ” from the “MeasObject# 1 ” having designated the S-PCC to the “MeasObject# 3 ” having designated the T-PCC.
  • the mobile station UE may release the “MeasId# 7 ”.
  • the mobile station UE applies the “MeasConfig” after performing the procedure described above in detail.
  • the mobile station UE when a change has occurred in the combinations of the PCC and the SCCs by the “Inter-frequency Handover”, the “Inter-frequency Re-establishment” and the like, it is possible for the mobile station UE to appropriately switch and release the “MeasId” based on the type of CC of the link destination of the “MeasId”.
  • the mobile communication system according to a second embodiment of the present invention will be described while focusing on the difference from the mobile communication system according to the above-mentioned first embodiment.
  • step S 201 the mobile station UE releases all “MeasIds” linked to the “ReportConfig” with a “trigger type” of “Periodical”.
  • step S 202 the mobile station UE determines whether or not the “MeasObject” for designating PCC (T-PCC) after change is managed.
  • step S 203 A When it is determined that the “MeasObject” is managed, the present operation proceeds to step S 203 A. When it is determined that the “MeasObject” is not managed, the present operation proceeds to step S 203 B.
  • step S 203 A the mobile station UE determines whether or not the “MeasObject”, to which a corresponding “MeasId” has been linked, designates PCC (S-PCC) before the change.
  • step S 204 A When it is determined that the “MeasObject” designates the PCC (S-PCC) before the change, the present operation proceeds to step S 204 A. When it is determined that the “MeasObject” does not designate the PCC (S-PCC) before the change, the present operation proceeds to step S 205 A.
  • step S 204 A the mobile station UE changes a link destination of the “MeasId” from the “MeasObject” having designated the S-PCC to the “MeasObject” having designated the T-PCC.
  • step S 205 A the mobile station UE determines whether or not CC designated by the “MeasObject”, to which the corresponding “MeasId” has been linked, has been changed from SCC to Non-configured CC.
  • step S 206 A When it is determined that the CC has been changed from the SCC to the Non-configured CC, the present operation proceeds to step S 206 A. When it is determined that the CC has not been changed from the SCC to the Non-configured CC, the present operation proceeds to step S 207 A.
  • step S 206 A the mobile station UE releases the “MeasId”.
  • step S 207 A the mobile station UE determines whether or not the CC designated by the “MeasObject”, to which the corresponding “MeasId” has been linked, has been changed from the Non-configured CC to the SCC.
  • step S 208 A When it is determined that the CC has been changed from the Non-configured CC to the SCC, the present operation proceeds to step S 208 A. When it is determined that the CC has not been changed from Non-configured CC to the SCC, the present operation proceeds to step S 209 A.
  • step S 208 A the mobile station UE releases the “MeasId”.
  • step S 209 A the mobile station UE maintains the link destination of the “MeasId” without a change. In addition, in step S 209 A, the mobile station UE may release the “MeasId”.
  • step S 210 A the mobile station UE determines whether or not the processes of steps S 203 A to S 210 A have been performed for all “MeasIds”.
  • the mobile station UE When it is determined that the processes of steps S 203 A to S 210 A have been performed, the present operation is completed. When it is determined that the processes of steps S 203 A to S 210 A have not been performed, the mobile station UE returns to step S 203 A and performs the processes of steps S 203 A to S 210 A for a subsequent “MeasId”.
  • step S 203 B the mobile station UE determines whether or not the “MeasObject”, to which the corresponding “MeasId” has been linked, designates the PCC (S-PCC) before the change.
  • step S 204 B When it is determined that the “MeasObject” designates the PCC (S-PCC) before the change, the present operation proceeds to step S 204 B. When it is determined that the “MeasObject” does not designate the PCC (S-PCC) before the change, the present operation proceeds to step S 205 B.
  • step S 204 B the mobile station UE releases the “MeasId”.
  • step S 205 B the mobile station UE determines whether or not the CC designated by the “MeasObject”, to which the corresponding “MeasId” has been linked, has been changed from the SCC to the Non-configured CC.
  • step S 206 B When it is determined that the CC has been changed from the SCC to the Non-configured CC, the present operation proceeds to step S 206 B. When it is determined that the CC has not been changed from the SCC to the Non-configured CC, the present operation proceeds to step S 207 B.
  • step S 206 B the mobile station UE releases the “MeasId”.
  • step S 207 B the mobile station UE determines whether or not the CC designated by the “MeasObject”, to which the corresponding “MeasId” has been linked, has been changed from the Non-configured CC to the SCC.
  • step S 208 B When it is determined that the CC has been changed from the Non-configured CC to the SCC, the present operation proceeds to step S 208 B. When it is determined that the CC has not been changed from Non-configured CC to the SCC, the present operation proceeds to step S 209 B.
  • step S 208 B the mobile station UE releases the “MeasId”.
  • step S 209 B the mobile station UE maintains the link destination of the “MeasId” without a change. In addition, in step S 209 B, the mobile station UE may release the “MeasId”.
  • step S 210 B the mobile station UE determines whether the processes of steps S 203 B to S 210 B have been performed for all “MeasIds”.
  • the mobile station UE When it is determined that the processes of steps S 203 B to S 210 B have been performed, the present operation is completed. When it is determined that the processes of steps S 203 B to S 210 B have not been performed, the mobile station UE returns to step S 203 B and performs the processes of steps S 203 B to S 210 B for a subsequent “MeasId”.
  • the mobile station UE applies the “MeasConfig” after performing the procedure described above in detail.
  • the mobile station UE when a change has occurred in the combinations of the PCC and the SCCs by “Inter-frequency Handover”, “Inter-frequency Re-establishment” and the like, the mobile station UE is configured to release other types of configuration information related to the SCCs.
  • the mobile station UE releases configuration information related to the changed SCCs, such as configuration information “RadioResourceConfigDedicated” or “RadioResourceConfigCommon” of L1/L2 related to the SCCs, or broadcast information “SystemInformation” related to the SCCs.
  • configuration information “RadioResourceConfigDedicated” or “RadioResourceConfigCommon” of L1/L2 related to the SCCs or broadcast information “SystemInformation” related to the SCCs.
  • the mobile station UE may be configured to release all types of configuration information related to the SCCs.
  • the first aspect of the present embodiment is summarized as a mobile communication method, in which a mobile station UE performs CA communication with a radio base station eNB by using PCC (a primary carrier) and one or a plurality of SCCs (secondary carriers) having different carrier frequencies, including the steps of: (A) transmitting, from the mobile station UE to the radio base station eNB, “Measurement Report” including a measurement result of “MeasObject (a measurement object carrier)”, when “MeasId (a measurement ID)”, the “MeasObject”, and “ReportConfig (a report condition)” are linked and managed, and when it is determined that the “ReportConfig” is satisfied; and (B) determining, at the mobile station UE, whether or not to release the “MeasId” according to the type of CC designated by the “MeasObject”, when a change has occurred in the combinations of the PCC and the SCCs.
  • PCC primary carrier
  • SCCs secondary carriers
  • the mobile station UE when the mobile station UE links and manages “MeasId# 1 (a first measurement ID)”, “MeasObject# 1 (a first measurement object carrier)” for designating “F 1 (a first carrier)”, and “ReportConfig# 1 (a first report condition)”, when the PCC is changed from the “F 1 ” to “F 3 (a second carrier)”, and when the mobile station UE manages “MeasObject# 3 (a second measurement object carrier)” for designating the “F 3 ”, the mobile station UE may change the link destination of the “MeasId# 1 ” from the “MeasObject# 1 ” to “MeasObject# 3 ”.
  • step (B) when the mobile station UE links and manages the “MeasId# 1 ”, the “MeasObject# 1 ” for designating the “F 1 ”, and the “ReportConfig# 1 ”, when the PCC is changed from the “F 1 ” to the “F 3 ”, and when the mobile station UE does not manage the “MeasObject# 3 ” for designating the “F 3 ”, the mobile station UE may release the “MeasId# 1 ”.
  • the mobile station UE may release the “MeasId# 5 /# 6 ”.
  • the mobile station UE may maintain the link destination of the “MeasId” linked to the “MeasObject” without a change.
  • the mobile station UE may maintain the link destination of the “MeasId# 7 ” without a change.
  • the mobile station UE may release the “MeasId” linked to the “MeasObject”.
  • the second aspect of the present embodiment is summarized as a mobile station UE, which is configured to be able to perform CA communication with a radio base station eNB by using PCC and one or a plurality of SCCs having different carrier frequencies, including: a transmission unit 14 configured to transmit “Measurement Report” including a measurement result of “MeasObject” to the radio base station eNB, when “MeasId”, the “MeasObject”, and “ReportConfig” are linked and managed, and when it is determined that the “ReportConfig” is satisfied; and a measurement processing unit 13 configured to determine whether or not to release the “MeasId” according to the type of CC designated by the “MeasObject”, when a change has occurred in the combinations of the PCC and the SCCs.
  • a transmission unit 14 configured to transmit “Measurement Report” including a measurement result of “MeasObject” to the radio base station eNB, when “MeasId”, the “
  • the measurement process unit 13 may be configured to change the link destination of the “MeasId# 1 ” from the “MeasObject# 1 ” to “MeasObject# 3 ”.
  • the measurement processing unit 13 may be configured to release the “MeasId# 1 ”.
  • the measurement processing unit 13 may be configured to release the “MeasId# 5 /# 6 ”.
  • the measurement processing unit 13 may be configured to maintain the link destination of the “MeasId” linked to the “MeasObject” without a change.
  • the measurement processing unit 13 may be configured to maintain the link destination of the “MeasId# 7 ” without a change.
  • the measurement processing unit 13 may be configured to release the “MeasId” linked to the “MeasObject”.
  • the third aspect of the present embodiment is summarized as a mobile communication method, in which a mobile station UE performs CA communication with a radio base station eNB by using PCC and one or a plurality of SCCs having different carrier frequencies, including: a step of releasing, at the mobile station UE, configuration information related to the SCCs, when a change has occurred in the combinations of the PCC and the SCCs.
  • the fourth aspect of the present embodiment is summarized as a mobile station UE, which is configured to be able to perform CA communication with a radio base station eNB by using PCC and one or a plurality of SCCs having different carrier frequencies, configured to release configuration information related to the SCCs, when a change has occurred in the combinations of the PCC and the SCCs.
  • the operation of the mobile station UE or the radio base station eNB may be performed by hardware, a software module performed by a processor, or a combination thereof.
  • the software module may be arranged in a storage medium of an arbitrary format such as a RAM (Random Access Memory), a flash memory, a ROM (Read Only Memory), an EPROM (Erasable Programmable ROM), an EEPROM (Electronically Erasable and Programmable ROM), a register, a hard disk, a removable disk, or a CD-ROM.
  • a RAM Random Access Memory
  • flash memory a ROM (Read Only Memory)
  • EPROM Erasable Programmable ROM
  • EEPROM Electrically Erasable and Programmable ROM
  • the storage medium is connected to the processor so that the processor can write and read information into and from the storage medium.
  • a storage medium may also be accumulated in the processor.
  • Such storage medium and processor may be arranged in an ASIC.
  • the ASIC may be arranged in the mobile station UE or the radio base station eNB.
  • such storage medium and processor may be arranged in the mobile station UE or the radio base station eNB as discrete components.
US13/643,553 2010-04-30 2011-04-28 Mobile communication method and mobile station Abandoned US20130107800A1 (en)

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BR112012027812A2 (pt) 2019-09-24
CN102870453B (zh) 2015-04-29
KR101346749B1 (ko) 2014-01-15
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US20130070680A1 (en) 2013-03-21
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