WO2013181946A1 - 小区重选方法、资源释放方法、用户设备和基站 - Google Patents

小区重选方法、资源释放方法、用户设备和基站 Download PDF

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Publication number
WO2013181946A1
WO2013181946A1 PCT/CN2013/071293 CN2013071293W WO2013181946A1 WO 2013181946 A1 WO2013181946 A1 WO 2013181946A1 CN 2013071293 W CN2013071293 W CN 2013071293W WO 2013181946 A1 WO2013181946 A1 WO 2013181946A1
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WIPO (PCT)
Prior art keywords
user equipment
cell
module
data
target cell
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PCT/CN2013/071293
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English (en)
French (fr)
Inventor
闫坤
李秉肇
陈燕燕
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华为技术有限公司
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Publication of WO2013181946A1 publication Critical patent/WO2013181946A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/24Reselection being triggered by specific parameters

Definitions

  • the present application relates to communications technologies, and in particular, to a cell reselection method, a resource release method, a user equipment, and a base station.
  • a user equipment in an Idle state or a Cell Forward Access Channel (Cell Forward Access Channel; hereinafter referred to as Cell-FACH) state ( User Equipment; hereinafter referred to as: UE) Introduces the enhanced uplink transmission feature in the idle state or the Cell-FACH state, and uses the Enhanced Dedicated Channel (hereinafter referred to as E-DCH) instead of the random access channel (Random Access Channel; Hereinafter referred to as: RACH).
  • E-DCH Enhanced Dedicated Channel
  • RACH Random Access Channel
  • the UE in the idle state or the CELL-FACH state can use the obtained uplink common E-DCH resource and the pre-configured Transmission Time Interval (TTI) to send uplink data to the base station.
  • TTI Transmission Time Interval
  • the UE in the Cell-FACH state is allowed to perform cell reselection only when the UE in the Cell-FACH state does not use the E-DCH resource for uplink data transmission.
  • the UE in the Cell-FACH state is occupying the uplink E-DCH resource, the number of uplinks is sent.
  • the UE in the Cell-FACH state can continue to perform the same-frequency cell measurement and the cell ranking, but even if there is a target cell that satisfies the cell reselection criterion, the UE in the Cell-FACH state is not allowed to reselect the UE. Target cell.
  • the Cell-FACH state becomes normal, so the time for the UE to transmit data in the Cell-FACH state becomes longer.
  • the UE when the UE is in the Cell-FACH state and occupies the common E-DCH (common E-DCH) resource, the UE is not allowed to perform cell reselection, then, when the UE is at the cell edge, if The intra-frequency measurement of the UE has met the cell reselection criteria, but cannot be re-selected to the target cell, causing a large uplink interference to the target cell.
  • E-DCH common E-DCH
  • aspects of the present application provide a cell reselection method, a resource release method, a user equipment, and a base station, to implement a public enhanced dedicated channel of a serving cell in a cell forward access channel state using a serving cell of the user equipment.
  • cell reselection is performed to reduce interference to the target cell.
  • An aspect of the present application provides a cell reselection method, including: a user equipment in a cell forward access channel state performs measurement in a process of uplink transmission by using a public enhanced dedicated channel resource of a serving cell where the user equipment is located, And the user equipment is configured to calculate, according to the data volume in the cache of the user equipment and the transmission rate of the user equipment, the user equipment needs to send data in the cache of the user equipment. Time; if the time required by the user equipment to send data in the buffer of the user equipment is greater than a preset duration, the user equipment reselects to the target cell.
  • a cell reselection method including: a user equipment in a cell forward access channel state performs measurement in a process of uplink transmission by using a public enhanced dedicated channel resource of a serving cell where the user equipment is located. Finding a target cell that satisfies predetermined criteria; The user equipment reads a broadcast message of the target cell, and obtains configuration information required for the user equipment to perform uplink access; the user equipment sends scheduling information to the serving cell, where the scheduling information carries a resource release indication And the serving base station of the user equipment is used to release the public enhanced dedicated channel resource of the serving cell occupied by the user equipment; the user equipment sends a cell update message to the target cell according to the configuration information.
  • a further aspect of the present application provides a resource release method, including: receiving, by a base station, scheduling information sent by a user equipment served by the base station, where the scheduling information carries a resource release indication; and the base station releasing the user according to the resource release indication The public enhanced dedicated channel resource of the serving cell where the user equipment is occupied by the device.
  • a further aspect of the present application provides a user equipment, including: a measurement module, a calculation module, and a reselection module, where the measurement module is configured to: when the user equipment is in a cell forward access channel state, in the user equipment In the process of performing uplink transmission by using the public enhanced dedicated channel resource of the serving cell where the user equipment is located, performing measurement to find a target cell that meets a predetermined criterion; and the calculating module is configured to use, according to the data volume in the cache of the user equipment And calculating, by the transmission rate of the user equipment, a time required for the user equipment to send data in the cache of the user equipment; the reselection module, configured to: when the user equipment calculated by the calculation module is sent When the time required for the data in the buffer of the user equipment is greater than a preset duration, the cell is reselected to the target cell.
  • a further aspect of the present application provides a user equipment, including: a cell measurement module, a message reading module, a resource release module, and a message sending module; and the cell measurement module is configured to: when the user equipment is in a cell forward access channel In the process of performing uplink transmission by using the public enhanced dedicated channel resource of the serving cell where the user equipment is located, performing measurement to find a target cell that meets a predetermined criterion; and the message reading module is configured to read the target a broadcast message of the cell, the configuration information required for the user equipment to perform uplink access, the resource release module, configured to send scheduling information to the serving cell, where the scheduling information carries a resource release indication, And the serving base station of the user equipment is configured to release the public enhanced dedicated channel resource of the serving cell that is occupied by the user equipment; the message sending module is configured to: according to the configuration information obtained by the message reading module The target cell sends a cell update message to reselect to the target cell.
  • a further aspect of the present application provides a base station, including: a receiving module and a releasing module, where the receiving module is configured to receive scheduling information sent by a user equipment served by the base station, where the scheduling information carries a resource release indication; And a module, configured to release, according to the resource release indication received by the receiving module, a public enhanced dedicated channel resource of a serving cell where the user equipment is occupied by the user equipment.
  • the technical effect of the aspect of the present application is as follows: in the process of performing uplink transmission by using the public enhanced dedicated channel resource of the serving cell where the user equipment is located, the user equipment in the cell forward access channel state performs measurement and finds that the target meets the predetermined criterion.
  • the time required for the user equipment to send the data in the buffer of the user equipment is calculated. If the time required for the user equipment to send the data in the buffer of the user equipment is greater than a preset duration, the user The device is reselected to the target cell, so that the user equipment in the cell forward access channel state can be reselected to meet the predetermined criterion in the process of performing uplink transmission by using the public enhanced dedicated channel resource of the serving cell where the user equipment is located.
  • the target cell reduces interference to the target cell.
  • the user equipment may be reselected to the target cell, so that the user equipment in the cell forward access channel state may perform uplink transmission in the uplink using the public enhanced dedicated channel resource of the serving cell where the user equipment is located. Reselecting to the target cell that satisfies the predetermined criteria, reducing interference to the target cell.
  • FIG. 1 is a flowchart of an embodiment of a cell reselection method of the present application
  • FIG. 2 is a flowchart of another embodiment of a cell reselection method of the present application
  • FIG. 3 is a flowchart of an embodiment of a resource release method according to the present application
  • FIG. 5 is a schematic structural diagram of another embodiment of a user equipment according to the present application
  • FIG. 6 is a schematic structural diagram of another embodiment of a user equipment according to the present application
  • GSM Global System for Mobile communications
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access Wireless
  • FDMA Orthogonal Frequency-Division Multiple Access
  • SC-FDMA single carrier FDMA
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • the user equipment which may be a wireless terminal or a wired terminal, may be a device that provides voice and/or data connectivity to the user, a handheld device with wireless connectivity, or other processing device connected to the wireless modem.
  • the wireless terminal can communicate with one or more core networks via a radio access network (eg, Radio Access Network; RAN for short); the wireless terminal can be a mobile terminal, such as a mobile phone (or "cellular" phone) and has
  • the computer of the mobile terminal for example, may be a portable, pocket, handheld, computer built-in or in-vehicle mobile device that exchanges language and/or data with the wireless access network.
  • the wireless terminal may be: Personal Communication Service (PCS), a cordless telephone, a Session Initiation Protocol (SIP) telephone, and a wireless local loop (Wireless Local). Loop; hereinafter referred to as: WLL) Station, Personal Digital Assistant (hereinafter referred to as: PDA) and other equipment.
  • PCS Personal Communication Service
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • a wireless terminal may also be referred to as a system, a Subscriber Unit, a Subscriber Station, a Mobile Station, a Mobile, a Remote Station, an Access Point, Remote Terminal, Access Terminal, User Terminal, User Agent, User Device, User Equipment, etc.
  • a base station e.g., an access point
  • the base station can be used to convert the received air frame and the Internet Protocol (IP) packet into each other to be connected to the wireless terminal.
  • IP Internet Protocol
  • a router between the rest of the network, where the rest of the access network may include an IP network.
  • the base station can also coordinate attribute management of the air interface.
  • the base station may be a base station (Base Transceiver Station; BTS) in GSM or CDMA, or a base station (NodeB) in WCDMA, or an evolved base station (NodeB or eNB or e-NodeB in LTE). ), this application is not limited.
  • BTS Base Transceiver Station
  • NodeB base station
  • NodeB evolved base station
  • eNB or e-NodeB is an abbreviation of an evolved NodeB.
  • the base station controller may be a base station controller (hereinafter referred to as BSC) in GSM or CDMA, or may be a radio network controller (hereinafter referred to as RNC) in WCDMA. limited.
  • BSC base station controller
  • RNC radio network controller
  • system and “network” are often used interchangeably herein.
  • the term “and/or” in this article is merely an association describing the associated object, indicating that there can be three relationships, for example: A and / or B, which can mean: A exists separately, and both A and B exist, exist alone B These three situations.
  • the character "/" in this article generally indicates that the contextual object is an "or" relationship.
  • FIG. 1 is a flowchart of an embodiment of a cell reselection method according to the present application. As shown in FIG. 1, the cell reselection method may be as follows.
  • the UE in the Cell-FACH state performs measurement in the process of performing uplink transmission by using the common E-DCH resource of the serving cell where the UE is located, and finds a target cell that meets a predetermined criterion.
  • the predetermined criterion may be: the signal quality of the intra-frequency cell measured by the UE is higher than the signal quality of the serving cell of the UE by a predetermined threshold, and the signal quality of the same-frequency cell is higher than the signal quality of the serving cell.
  • the duration of the value is greater than or equal to the set cell reselection duration.
  • the predetermined threshold may be 3 dB.
  • the present application is not limited thereto. The present application does not limit the size of the predetermined threshold.
  • the same frequency measurement may be performed, and the measured
  • the signal quality of the cell is sorted within the evaluation time, if the signal quality of a co-frequency cell is 3 dB higher than the signal quality of the serving cell of the UE, and the signal quality of the co-frequency cell is higher than the signal quality of the serving cell of the UE. If the duration of the high 3 dB is greater than or equal to the set cell reselection duration, the intra-frequency cell is the target cell that satisfies the predetermined criterion.
  • the UE calculates, according to the amount of data in the buffer of the UE and the transmission rate of the UE, a time required for the UE to send data in the cache of the UE.
  • step 102 the UE calculates, according to the amount of data in the buffer of the UE and the transmission rate of the UE, that the time required for the UE to send the data in the cache of the UE may be: the UE calculates the data in the cache of the UE.
  • SI The value of the total E-DCH Buffer Status (hereinafter referred to as TEBS) field is equal; the transmission rate of the UE is equal to the uplink data amount transmitted by the UE in the TTI of the UE and the TTI of the UE.
  • TEBS E-DCH Buffer Status
  • the UE recalculates according to the amount of data in the buffer of the UE and the transmission rate of the UE.
  • the UE does not perform cell reselection; and if the time required for the UE to send the data in the buffer of the UE is greater than the preset duration, that is, within the preset duration, If the UE cannot send the data in the buffer of the UE, the UE reselects. Go to the above target cell.
  • the UE needs to recalculate the time required for the UE to send the data in the cache of the UE; if the recalculation time is less than Or the remaining duration of the foregoing duration, that is, the data in the buffer of the UE can be sent within the remaining duration of the duration, the UE does not perform cell reselection; and if the recalculated time is greater than the remaining duration of the duration, If the data in the buffer of the UE cannot be transmitted within the remaining duration of the duration, the UE reselects to the target cell.
  • the preset duration may be a preset duration of the timer.
  • the UE may further read a broadcast message of the serving cell of the UE, and obtain the timer and the timer. Timing time. Specifically, the timer and the timer duration of the timer are preset by the radio network controller, and are broadcast by the serving cell of the UE. Therefore, the UE can obtain the broadcast message of the serving cell of the UE. The preset timer and the timing of the timer.
  • the UE may also start the foregoing timer, so that after the UE calculates the time required for the UE to send the data in the cache of the UE according to the amount of data in the buffer of the UE and the transmission rate of the UE, The time required for the UE to send the data in the buffer of the UE is greater than the timing of the timer, and the UE reselects to the target cell.
  • the UE reselecting to the target cell may be: the UE sends an SI to the serving cell, where the SI carries a resource release indication, to indicate that the serving base station of the UE releases the public E-DCH resource of the serving cell occupied by the UE.
  • the application is not limited to this, and the application does not limit the manner in which the SI carries the resource release indication. Set.
  • the serving base station of the UE may determine that the UE requests to release the public E-DCH resource of the serving cell occupied by the UE, and then the serving base station releases.
  • the UE After the UE reselects to the target cell, the UE sends a cell update message to the target cell according to the obtained configuration information, and initiates an uplink access according to the configuration information, to access the target cell, and access the target cell. Thereafter, the UE may perform uplink data transmission in the target cell.
  • the UE in the Cell-FACH state performs measurement in the process of performing uplink transmission by using the common E-DCH resource of the serving cell where the UE is located, and after detecting the target cell that meets the predetermined criterion, calculating that the UE sends the The time required for the data in the cache of the UE.
  • FIG. 2 is a flowchart of another embodiment of a cell reselection method according to the present application. As shown in FIG. 2, the cell reselection method may be as follows.
  • the UE in the Cell-FACH state performs measurement in the process of performing uplink transmission by using the common E-DCH resource of the serving cell where the UE is located, and finds a target cell that meets a predetermined criterion.
  • the predetermined criterion may be: the signal quality of the intra-frequency cell measured by the UE is higher than the signal quality of the serving cell of the UE by a predetermined threshold, and the signal quality of the same-frequency cell is higher than the signal quality of the serving cell.
  • the duration of the value is greater than or equal to the set cell reselection duration.
  • the predetermined threshold may be 3 dB.
  • the present application is not limited thereto. The present application does not limit the size of the predetermined threshold.
  • the UE in the Cell-FACH state may perform intra-frequency measurement in the process of performing uplink transmission by using the common E-DCH resource of the serving cell where the UE is located, and perform signal quality on all measured cells in the evaluation time.
  • Sorting if the signal quality of a co-frequency cell is 3 dB higher than the signal quality of the serving cell of the UE, and the signal quality of the co-frequency cell is 3 dB higher than the signal quality of the serving cell of the UE is greater than or equal to the set time.
  • the intra-frequency cell is a target cell that satisfies a predetermined criterion.
  • the UE reads the broadcast message of the target cell, and obtains configuration information required for the UE to perform uplink access.
  • the UE sends scheduling information to the serving cell, where the scheduling information carries a resource release indication, to indicate that the serving base station of the UE releases the public E-DCH resource of the serving cell occupied by the UE.
  • the method for carrying the resource release indication by the SI is not limited. Specifically, after the serving base station of the UE receives the SI sent by the UE, if the SI is found to be 0, the serving base station may determine that the UE requests to release the public E-DCH resource of the serving cell occupied by the UE, and then the serving base station releases. The common E-DCH resource of the serving cell where the UE is occupied by the UE.
  • the UE sends a cell update message to the target cell according to the foregoing configuration information.
  • the UE may further initiate an uplink access according to the foregoing configuration information to access the target cell. After accessing the target cell, the UE may perform uplink data transmission in the target cell.
  • the UE if the UE has completed uplink data transmission in the process of reading the target cell broadcast message, the UE also needs to continue cell reselection. By The UE continues to send uplink data in the current serving cell while reading the broadcast message of the target cell, so that the time of uplink data interruption in the cell reselection process can be reduced.
  • the UE in the Cell-FACH state performs measurement in the process of performing uplink transmission by using the common E-DCH resource of the serving cell where the UE is located, and after detecting the target cell that meets the predetermined criterion, the UE reads the target.
  • the broadcast message of the cell obtains configuration information required for the UE to perform uplink access, and then the UE sends scheduling information to the serving cell, where the scheduling information carries a resource release indication, so that the serving base station of the UE releases the service occupied by the UE.
  • the public E-DCH resource of the cell Through the above process, the UE may be reselected to the target cell, so that the UE in the Cell-FACH state may be reselected to meet the predetermined criterion in the process of performing uplink transmission by using the common E-DCH resource of the serving cell where the UE is located.
  • the target cell reduces interference to the target cell.
  • FIG. 3 is a flowchart of an embodiment of a resource release method according to the present application. As shown in FIG. 3, the resource release method may be as follows.
  • the base station receives the SI sent by the UE served by the base station, where the SI carries a resource release indication.
  • the foregoing UE may be in a Cell-FACH state, where the SI may be in a Cell-FACH state, and the UE performs measurement in the process of performing uplink transmission by using the common E-DCH resource of the serving cell where the UE is located, and finds that the predetermined criterion is met. After the target cell is sent to the serving cell of the UE.
  • the predetermined criterion may be: the signal quality of the intra-frequency cell measured by the UE is higher than the signal quality of the serving cell of the UE by a predetermined threshold, and the signal quality of the same-frequency cell is higher than the signal quality of the serving cell.
  • the duration of the value is greater than or equal to the set cell reselection duration.
  • the predetermined threshold may be 3 dB.
  • the present application is not limited thereto. The present application does not limit the size of the predetermined threshold.
  • the base station releases, according to the foregoing resource release indication, a public E-DCH resource of a serving cell where the UE is occupied by the UE. Specifically, after receiving the SI sent by the UE, the base station may determine, according to the resource release indication carried by the SI, that the UE requests to release the public E-DCH resource of the serving cell where the UE is occupied by the UE.
  • the base station may determine that the UE requests to release the common E-DCH resource of the serving cell occupied by the UE, and then the base station releases the occupied by the UE.
  • the base station may release the public E-DCH resource of the serving cell of the UE that is occupied by the UE according to the resource release indication carried by the SI; During the process of selecting the target cell that meets the predetermined criterion, the public E-DCH resource of the serving cell where the UE is occupied by the UE is released.
  • FIG. 4 is a schematic structural diagram of an embodiment of a user equipment according to the present application.
  • the UE in this embodiment may implement the process of the embodiment shown in FIG. 1 .
  • the UE may include: a measurement module 41 and a calculation module. 42 and reselection module 43.
  • the measuring module 41 is configured to: when the UE is in a Cell-FACH state, perform measurement in the process of performing uplink transmission by using the common E-DCH resource of the serving cell where the UE is located, and find a target cell that meets a predetermined criterion. .
  • the predetermined criterion may be: the signal quality of the intra-frequency cell measured by the UE is higher than the signal quality of the serving cell of the UE by a predetermined threshold, and the signal quality of the same-frequency cell is higher than the foregoing.
  • the signal quality of the serving cell is higher than the predetermined threshold value for a duration greater than or equal to the set cell reselection duration.
  • the predetermined threshold may be 3 dB.
  • the present application is not limited thereto. The present application does not limit the size of the predetermined threshold.
  • the calculation module 42 is configured to calculate, according to the data volume in the cache of the UE and the transmission rate of the UE, a time required for the UE to send data in the cache of the UE.
  • the calculation module 42 may be configured according to the cache of the UE.
  • the quotient of the amount of data in the transmission rate of the UE as the time required for the UE to send the data in the buffer of the UE; wherein the amount of data in the buffer of the UE and the value of the TEBS field in the SI of the UE
  • the transmission rate of the UE is equal to the quotient of the amount of uplink data transmitted by the UE in the TTI of the UE and the TTI of the UE.
  • the reselection module 43 is configured to reselect to the target cell when the time required by the calculation module 42 to send the data in the cache of the UE is greater than a preset duration. Further, the calculating module 42 is further configured to: if the buffer of the UE receives new data within the preset duration, recalculate the foregoing according to the amount of data in the buffer of the UE and the transmission rate of the UE. The time required for the UE to send the data in the cache of the UE. The reselection module 43 is further configured to reselect to the target cell when the recalculation time of the calculation module 42 is greater than the remaining duration of the duration.
  • the reselection module 43 if the time required for the UE to transmit the data in the buffer of the UE is less than or equal to the preset duration, that is, within the preset duration, the UE can send the UE. If the data in the buffer of the UE is not, the reselection module 43 does not perform cell reselection; and if the time required for the UE to transmit the data in the buffer of the UE is greater than the preset duration, that is, the preset duration If the UE cannot send the data in the buffer of the UE, the reselection module 43 reselects to the target cell.
  • the calculation module 42 needs to recalculate the time required for the UE to send the data in the UE's cache; if the calculation module 42 recalculates The time is less than or equal to the remaining duration of the above duration, ie If the data in the cache of the UE can be sent in the remaining duration of the duration, the reselection module 43 does not perform cell reselection; and if the recalculation time of the calculation module 42 is greater than the remaining duration of the duration, that is, in the cache of the UE. The data cannot be transmitted within the remaining duration of the above duration, and the reselection module 43 reselects to the target cell.
  • the UE in the Cell-FACH state performs the uplink transmission in the process of using the common E-DCH resource of the serving cell where the UE is located, and the measurement module 41 performs measurement to find the target cell that meets the predetermined criterion, and the calculation module 42 Calculating the time required for the UE to send the data in the buffer of the UE. If the time required for the UE to send the data in the buffer of the UE is greater than the preset duration, the reselection module 43 reselects to the foregoing.
  • FIG. 5 is a schematic structural diagram of another embodiment of the user equipment of the present application, which is different from the user equipment shown in FIG. 4, and the UE shown in FIG. 5 may further include: a reading module 44 and a starting module 45.
  • the reading module 44 is configured to read a broadcast message of the serving cell before the measurement module 41 performs measurement, and obtain a preset timer and a timing duration of the timer.
  • the timer and the timer duration of the timer are preset by the radio network controller and broadcast by the serving cell of the UE. Therefore, the reading module 44 reads the broadcast message of the serving cell of the UE. You can get the preset timer and the timing of the timer.
  • the startup module 45 is configured to start a timer after the measurement module 41 performs the measurement. In this way, after the calculation module 42 calculates the time required for the UE to send the data in the cache of the UE according to the data amount in the buffer of the UE and the transmission rate of the UE, if the UE sends the data in the cache of the UE. If the required time is greater than the timing duration of the timer, the reselection module 43 reselects to the target cell.
  • the reselection module 43 may include: a message sending submodule 431 and a message reading submodule 432.
  • the message sending sub-module 431 is configured to send an SI to the serving cell, where the SI carries a resource release indication, to indicate that the serving base station of the UE releases the public E-DCH resource of the serving cell occupied by the UE, where the SI carries the resource.
  • the base station releases the public E-DCH resource of the serving cell occupied by the UE.
  • the application is not limited to this.
  • the manner in which the SI carries the resource release indication is not limited.
  • the message reading sub-module 432 is configured to read a broadcast message of the target cell, and obtain configuration information required by the UE to perform uplink access.
  • the UE shown in FIG. 5 may further include: a sending module 46, configured to send a cell update message to the target cell according to the configuration information obtained by the message reading submodule 432, and according to the configuration obtained by the message reading submodule 432 The information initiates an uplink access to access the target cell. After accessing the target cell, the UE may perform uplink data transmission in the target cell.
  • a sending module 46 configured to send a cell update message to the target cell according to the configuration information obtained by the message reading submodule 432, and according to the configuration obtained by the message reading submodule 432 The information initiates an uplink access to access the target cell. After accessing the target cell, the UE may perform uplink data transmission in the target cell.
  • the foregoing UE may implement the UE in the cell-FACH state to perform retransmission to the target cell that satisfies the cell reselection criterion in the process of performing uplink transmission by using the common E-DCH resource of the serving cell of the UE, and reduce interference to the target cell.
  • FIG. 6 is a schematic structural diagram of still another embodiment of the user equipment of the present application.
  • the UE in this embodiment may implement the process of the embodiment shown in FIG. 2 of the present application.
  • the UE may include: a cell measurement module 61.
  • the cell measurement module 61 is configured to perform measurement during the uplink transmission by using the common E-DCH resource of the serving cell of the UE when the UE is in the Cell-FACH state, and find a target cell that meets a predetermined criterion.
  • the message reading module 63 is configured to read the broadcast message of the target cell, and obtain configuration information required for the uplink access by the UE.
  • the resource release module 62 is configured to send an SI to the serving cell, where the SI carries a resource release indication, to indicate that the serving base station of the UE releases the public E-DCH resource of the serving cell occupied by the UE, where the SI carries the resource release indication.
  • the application is not limited to this.
  • the method for carrying the resource release indication by the SI is not limited.
  • the message sending module 64 is configured to send a cell update message to the target cell according to the foregoing configuration information obtained by the message reading module 63.
  • the UE may further include: an access initiation module 65, configured to initiate uplink access according to the configuration information obtained by the message reading module 63, to access the target cell. After accessing the target cell, the UE may perform uplink data transmission in the target cell.
  • the UE if the UE has completed the transmission of the uplink data in the process of the message reading module 63 reading the target cell broadcast message, the UE also needs to continue the cell reselection. Since the message reading module 63 reads the broadcast message of the target cell while continuing to transmit the uplink data in the current serving cell, the time of the uplink data interruption in the cell reselection process can be reduced.
  • the UE in the Cell-FACH state performs uplink transmission in the process of using the common E-DCH resource of the serving cell where the UE is located, and the cell measurement module 61 performs measurement to find the target cell that meets the cell reselection criteria.
  • the message reading module 63 reads the broadcast message of the target cell to obtain configuration information required for the uplink access of the UE, and then the resource release module 62 sends an SI to the serving cell, where the SI carries a resource release indication to release the UE.
  • FIG. 7 is a schematic structural diagram of an embodiment of a base station according to the present application.
  • the base station in this embodiment may implement the process of the embodiment shown in FIG. 3 of the present application.
  • the base station may include: a receiving module 71 and a releasing module 72. .
  • the receiving module 71 is configured to receive scheduling information sent by the UE served by the base station, where the scheduling information carries a resource release indication.
  • the UE may be in a Cell-FACH state, where the SI may be a UE in a Cell-FACH state.
  • the measurement is performed, and after the target cell that meets the predetermined criterion is found, it is sent to the serving cell of the UE.
  • the predetermined criterion may be: the signal quality of the intra-frequency cell measured by the UE is higher than the signal quality of the serving cell of the UE by a predetermined threshold, and the signal quality of the same-frequency cell is higher than the signal quality of the serving cell.
  • the duration of the value is greater than or equal to the set cell reselection duration.
  • the predetermined threshold may be 3 dB.
  • the present application is not limited thereto. The present application does not limit the size of the predetermined threshold.
  • the release module 72 is configured to release the public E-DCH resource of the serving cell of the UE that is occupied by the UE according to the resource release indication received by the receiving module 71. Specifically, after receiving the SI sent by the UE, the base station may determine, according to the resource release indication carried by the SI, that the UE requests to release the public E-DCH resource of the serving cell where the UE is occupied by the UE.
  • the base station may determine that the UE requests to release the public E-DCH resource of the serving cell occupied by the UE, and then, The base station releases the public E-DCH resource of the serving cell where the UE is occupied by the UE.
  • the releasing module 72 may release the public E-DCH resource of the serving cell where the UE is occupied by the UE according to the resource release indication carried by the SI;
  • the public E-DCH resource of the serving cell where the UE is occupied by the UE is released in the process of the UE reselecting to the target cell that meets the predetermined criterion.
  • modules in the apparatus in the embodiments may be distributed in the apparatus of the embodiment according to the embodiment, or may be correspondingly changed in one or more apparatuses different from the embodiment.
  • the modules of the above embodiments may be combined into one module, or may be further split into a plurality of sub-modules. It will be apparent to those skilled in the art that, for convenience and brevity of description, only the division of each functional module described above is exemplified. In practical applications, the above-mentioned function assignment can be completed by different functional modules as needed.
  • the internal structure of the device is divided into different functional modules to perform all or part of the functions described above. For the specific working process of the system, the device and the unit described above, reference may be made to the corresponding process in the foregoing method embodiments, and details are not described herein again.
  • the disclosed system, apparatus, and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the modules or units is only a logical function division.
  • there may be another division manner for example, multiple units or components may be used. Combined or can be integrated into another system, or some features can be ignored, or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit, if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application, in essence or the contribution to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium.
  • the instructions include a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to perform all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a removable hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program code. .
  • ROM read-only memory
  • RAM random access memory
  • magnetic disk or an optical disk, and the like, which can store program code.

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Abstract

本申请提供一种小区重选方法、资源释放方法、用户设备(UE)和基站,所述小区重选方法包括:处于小区前向接入信道(Cell-FACH)状态的UE在利用所述UE所在服务小区的公共增强专用信道(E-DCH)资源进行上行传输的过程中,进行测量,发现满足预定准则的目标小区(101);所述UE根据所述UE的缓存中的数据量和所述UE的传输速率计算所述UE发送完所述UE的缓存中的数据所需的时间(102);如果所述UE发送完所述UE的缓存中的数据所需的时间大于预先设定的时长,则所述UE重选到所述目标小区(103)。从而可以实现处于Cell-FACH状态的UE在利用该UE所在服务小区的公共E-DCH资源进行上行传输的过程中,重选到满足预定准则的目标小区,降低对目标小区的干扰。

Description

小区重选方法、 资源释放方法、 用户设备和基站
本申请要求于 2012 年 06 月 08 日提交中国专利局、 申请号为 201210188543.1、 发明名称为 "小区重选方法、 资源释放方法、 用户设备和 基站" 的中国专利申请的优先权, 其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术, 尤其涉及一种小区重选方法、 资源释放方法、 用户设备和基站。
背景技术
在通用移动通信系统 ( Universal Mobile Telecommunication System; 以 下简称: UMTS )中, 对于处于空闲(Idle )状态或小区前向接入信道(Cell Forward Access Channel; 以下简称: Cell— FACH )状态的用户设备( User Equipment; 以下简称: UE ) 引入了空闲状态或 Cell— FACH状态下的增强 上行传输特性,使用增强专用信道( Enhanced Dedicated Channel; 以下简称: E-DCH )代替随机接入信道( Random Access Channel; 以下简称: RACH )。 处于空闲状态或 CELL— FACH状态的 UE可以利用获得的上行公共 E-DCH 资源和预先配置的传输时间间隔 ( Transmission Time Interval; 以下简称: TTI ), 向基站发送上行数据。
现有技术中, 只有当处于 Cell-FACH状态的 UE没使用 E-DCH资源进 行上行数据的传输时, 才允许上述处于 Cell-FACH状态的 UE进行小区重 选。
如果处于 Cell-FACH状态的 UE正在占用上行 E-DCH资源发送上行数 据, 那么虽然该处于 Cell-FACH状态的 UE可以继续进行同频小区测量和 小区排序, 但是即便存在满足小区重选准则的目标小区, 也不允许该处于 Cell-FACH状态的 UE重选到该目标小区。 随着智能手机应用的增多, Cell-FACH状态会成为常态, 因此 UE在 Cell-FACH状态发送数据的时间会变长。 按照现有技术的规定, 当 UE处于 Cell-FACH状态, 并且占用公共 E-DCH ( common E-DCH )资源时, 不允许 该 UE进行小区重选, 那么, 当该 UE处于小区边缘时, 如果该 UE的同频测 量已经满足了小区重选准则, 但是又不能重选到目标小区, 会对目标小区 造成很大的上行干扰。
发明内容 本申请多个方面提供一种小区重选方法、 资源释放方法、 用户设备和 基站, 以实现处于小区前向接入信道状态的用户设备在利用该用户设备的 服务小区的公共增强专用信道资源进行上行传输的过程中, 进行小区重选, 降低对目标小区的干扰。 本申请一方面提供一种小区重选方法, 包括: 处于小区前向接入信道 状态的用户设备在利用所述用户设备所在服务小区的公共增强专用信道资 源进行上行传输的过程中, 进行测量, 发现满足预定准则的目标小区; 所 述用户设备根据所述用户设备的緩存中的数据量和所述用户设备的传输速 率计算所述用户设备发送完所述用户设备的緩存中的数据所需的时间; 如 果所述用户设备发送完所述用户设备的緩存中的数据所需的时间大于预先 设定的时长, 则所述用户设备重选到所述目标小区。 本申请另一方面提供一种小区重选方法, 包括: 处于小区前向接入信 道状态的用户设备在利用所述用户设备所在服务小区的公共增强专用信道 资源进行上行传输的过程中, 进行测量, 发现满足预定准则的目标小区; 所述用户设备读取所述目标小区的广播消息, 获得所述用户设备进行上行 接入所需的配置信息; 所述用户设备向所述服务小区发送调度信息, 所述 调度信息携带资源释放指示, 以指示所述用户设备的服务基站释放所述用 户设备占用的所述服务小区的公共增强专用信道资源; 所述用户设备根据 所述配置信息向所述目标小区发送小区更新消息。 本申请再一方面提供一种资源释放方法, 包括: 基站接收所述基站服 务的用户设备发送的调度信息, 所述调度信息携带资源释放指示; 所述基 站根据所述资源释放指示释放所述用户设备占用的所述用户设备所在服务 小区的公共增强专用信道资源。 本申请再一方面提供一种用户设备, 包括: 测量模块、 计算模块和重 选模块; 所述测量模块, 用于当所述用户设备处于小区前向接入信道状态 时, 在所述用户设备利用所述用户设备所在服务小区的公共增强专用信道 资源进行上行传输的过程中, 进行测量, 发现满足预定准则的目标小区; 所述计算模块, 用于根据所述用户设备的緩存中的数据量和所述用户设备 的传输速率计算所述用户设备发送完所述用户设备的緩存中的数据所需的 时间; 所述重选模块, 用于当所述计算模块计算的所述用户设备发送完所 述用户设备的緩存中的数据所需的时间大于预先设定的时长时, 重选到所 述目标小区。 本申请再一方面提供一种用户设备, 包括: 小区测量模块、 消息读取 模块、 资源释放模块和消息发送模块; 所述小区测量模块, 用于当所述用 户设备处于小区前向接入信道状态时, 在利用所述用户设备所在服务小区 的公共增强专用信道资源进行上行传输的过程中, 进行测量, 发现满足预 定准则的目标小区; 所述消息读取模块, 用于读取所述目标小区的广播消 息, 获得所述用户设备进行上行接入所需的配置信息; 所述资源释放模块, 用于向所述服务小区发送调度信息, 所述调度信息携带资源释放指示, 以 指示所述用户设备的服务基站释放所述用户设备占用的所述服务小区的公 共增强专用信道资源; 所述消息发送模块, 用于根据所述消息读取模块获 得的所述配置信息向所述目标小区发送小区更新消息, 以重选到所述目标 小区。 本申请再一方面提供一种基站, 包括: 接收模块和释放模块; 所述接 收模块, 用于接收所述基站服务的用户设备发送的调度信息, 所述调度信 息携带资源释放指示; 所述释放模块, 用于根据所述接收模块接收的所述 资源释放指示释放所述用户设备占用的所述用户设备所在服务小区的公共 增强专用信道资源。 本申请一方面的技术效果是: 处于小区前向接入信道状态的用户设备 在利用该用户设备所在服务小区的公共增强专用信道资源进行上行传输的 过程中, 进行测量, 发现满足预定准则的目标小区之后, 计算该用户设备 发送完所述用户设备的緩存中的数据所需的时间, 如果该用户设备发送完 该用户设备的緩存中的数据所需的时间大于预先设定的时长, 则用户设备 重选到上述目标小区; 从而可以实现处于小区前向接入信道状态的用户设 备在利用该用户设备所在服务小区的公共增强专用信道资源进行上行传输 的过程中, 重选到满足预定准则的目标小区, 降低对目标小区的干扰。 通过上述过程, 上述用户设备可以重选到上述目标小区, 从而可以实 现处于小区前向接入信道状态的用户设备在利用该用户设备所在服务小区 的公共增强专用信道资源进行上行传输的过程中, 重选到满足预定准则的 目标小区, 降低对目标小区的干扰。
附图说明 为了更清楚地说明本申请实施例或现有技术中的技术方案, 下面将对 实施例或现有技术描述中所需要使用的附图作一简单地介绍, 显而易见地, 下面描述中的附图是本申请的一些实施例, 对于本领域普通技术人员来讲, 在不付出创造性劳动性的前提下, 还可以根据这些附图获得其他的附图。
图 1为本申请小区重选方法一个实施例的流程图; 图 2为本申请小区重选方法另一个实施例的流程图; 图 3为本申请资源释放方法一个实施例的流程图; 图 4为本申请用户设备一个实施例的结构示意图; 图 5为本申请用户设备另一个实施例的结构示意图; 图 6为本申请用户设备再一个实施例的结构示意图; 图 7为本申请基站一个实施例的结构示意图。
具体实施方式
为使本申请实施例的目的、 技术方案和优点更加清楚, 下面将结合本 申请实施例中的附图, 对本申请实施例中的技术方案进行清楚、 完整地描 述, 显然, 所描述的实施例是本申请一部分实施例, 而不是全部的实施例。 基于本申请中的实施例, 本领域普通技术人员在没有作出创造性劳动前提 下所获得的所有其他实施例, 都属于本申请保护的范围。
本文中描述的各种技术可用于各种无线通信系统, 例如当前第二代移 动通信 (2nd Generation; 以下简称: 2G ) 系统、 第三代移动通信 (3rd Generation; 以下简称: 3G ) 系统和下一代通信系统; 举例来说, 上述无线 通信系统可以为: 全球移动通信 ( Global System for Mobile communications; 以下简称: GSM ) 系统、 码分多址( Code Division Multiple Access; 以下简 称: CDMA ) 系统、 时分多址(Time Division Multiple Access; 以下简称: TDMA ) 系统、 宽带码分多址 (Wideband Code Division Multiple Access Wireless; 以下简称: WCDMA )系统、频分多址( Frequency Division Multiple Addressing; 以下简称: FDMA ) 系统、 正交频分多址 ( Orthogonal Frequency-Division Multiple Access;以下简称: OFDMA )系统、单载波 FDMA ( Single Carrier-FDMA; 以下简称: SC-FDMA ) 系统、 通用分组无线业务 ( General Packet Radio Service; 以下简称: GPRS ) 系统或长期演进( Long Term Evolution; 以下简称: LTE ) 系统, 以及其他此类通信系统。 本文中结合终端和 /或基站和 /或基站控制器来描述各种方面。 用户设备, 可以是无线终端也可以是有线终端, 无线终端可以是指向 用户提供语音和 /或数据连通性的设备, 具有无线连接功能的手持式设备、 或连接到无线调制解调器的其他处理设备。无线终端可以经无线接入网(例 如: Radio Access Network; 简称: RAN )与一个或多个核心网进行通信; 无线终端可以是移动终端, 如移动电话 (或称为 "蜂窝" 电话)和具有移 动终端的计算机, 例如, 可以是便携式、 袖珍式、 手持式、 计算机内置的 或者车载的移动装置, 它们与无线接入网交换语言和 /或数据。 举例来说, 上述无线终端可以为: 个人通信业务 ( Personal Communication Service; 以 下简称: PCS )电话、 无绳电话、 会话发起协议 ( Session Initiation Protocol; 以下简称: SIP )话机、 无线本地环路 ( Wireless Local Loop; 以下简称: WLL )站、 个人数字助理( Personal Digital Assistant; 以下简称: PDA )等 设备。 无线终端也可以称为系统、 订户单元 (Subscriber Unit ), 订户站 ( Subscriber Station ), 移动站( Mobile Station )、 移动台 ( Mobile )、 远程站 ( Remote Station )、 接入点 ( Access Point )、 远程终端 ( Remote Terminal )、 接入终端 ( Access Terminal )、 用户终端 ( User Terminal )、 用户代理(User Agent )、 用户设备 ( User Device )或用户装备 ( User Equipment )等。 基站 (例如, 接入点)可以是指接入网中在空中接口上通过一个或多 个扇区与无线终端通信的设备。 基站可用于将收到的空中帧与网际协议 ( Internet Protocol; 以下简称: IP )分组进行相互转换, 作为无线终端与接 入网的其余部分之间的路由器, 其中接入网的其余部分可包括 IP网络。 基 站还可协调对空中接口的属性管理。 例如, 基站可以是 GSM或 CDMA中 的基站( Base Transceiver Station; 以下简称: BTS ), 也可以是 WCDMA中 的基站 (NodeB ), 还可以是 LTE 中的演进型基站 ( NodeB 或 eNB 或 e-NodeB ) , 本申请并不限定。 其中, eNB 或 e-NodeB 为演进型基站 ( evolutional NodeB ) 的简称。
基站控制器, 可以是 GSM或 CDMA 中的基站控制器 (Base Station Controller;以下简称: BSC ),也可以是 WCDMA中的无线网络控制器( Radio Network Controller; 以下简称: RNC ), 本申请并不限定。
另外, 本文中术语 "系统" 和 "网络" 在本文中常可被互换使用。 本 文中术语 "和 /或", 仅仅是一种描述关联对象的关联关系, 表示可以存在三 种关系, 例如: A和 /或 B, 可以表示: 单独存在 A, 同时存在 A和 B, 单 独存在 B 这三种情况。 另外, 本文中字符 "/" , 一般表示前后关联对象是 一种 "或" 的关系。
图 1为本申请小区重选方法一个实施例的流程图, 如图 1所示, 该小 区重选方法可以如下所述。
101 ,处于 Cell-FACH状态的 UE利用 UE所在服务小区的公共 E-DCH 资源进行上行传输的过程中, 进行测量, 发现满足预定准则的目标小区。
其中, 上述预定准则可以为: UE测量的同频小区的信号质量比该 UE 的服务小区的信号质量高预定阔值, 并且上述同频小区的信号质量比上述 服务小区的信号质量高上述预定阔值的时长大于或等于设定的小区重选时 长。 本实施例中, 上述预定阔值可以为 3dB , 当然本申请并不仅限于此, 本申请对预定阔值的大小不作限定。
具体地, 处于 Cell-FACH状态的 UE利用该 UE所在服务小区的公共 E-DCH资源进行上行传输的过程中, 可以进行同频测量, 并且对测量的所 有小区的信号质量在评估时间内进行排序, 如果某个同频小区的信号质量 比该 UE的服务小区的信号质量高 3dB,并且上述同频小区的信号质量比该 UE的服务小区的信号质量高 3dB的时长大于或等于设定的小区重选时长, 则上述同频小区为满足预定准则的目标小区。
102, UE根据该 UE的緩存中的数据量和该 UE的传输速率计算该 UE 发送完上述 UE的緩存中的数据所需的时间。
103 , 如果 UE发送完该 UE的緩存中的数据所需的时间大于预先设定 的时长, 则 UE重选到上述目标小区。 具体地, 步骤 102, UE根据该 UE的緩存中的数据量和该 UE的传输 速率计算该 UE发送完上述 UE的緩存中的数据所需的时间可以为: UE计 算该 UE的緩存中的数据量与上述 UE的传输速率之商, 作为 UE发送完该 UE的緩存中的数据所需的时间;其中,上述 UE的緩存中的数据量与该 UE 的调度信息 (Scheduling Information; 以下简称: SI ) 中全部增强专用信道 緩存状态 ( Total E-DCH Buffer Status; 以下简称: TEBS )字段的值相等; 上述 UE的传输速率等于该 UE在该 UE的 TTI中传输的上行数据量与该 UE的 TTI之商。 进一步地, 本实施例中, 在上述预先设定的时长内, 如果该 UE的緩存 又接收到新的数据, 则该 UE根据该 UE的緩存中的数据量和上述 UE的传 输速率, 重新计算该 UE发送完该 UE的緩存中的数据所需的时间; 如果重 新计算的时间大于上述时长的剩余时长, 则该 UE重选到上述目标小区。 也就是说, 本实施例中, 如果 UE发送完该 UE的緩存中的数据所需的 时间小于或等于上述预先设定的时长, 即在上述预先设定的时长之内, UE 能够发送完该 UE的緩存中的数据, 则该 UE不进行小区重选; 而如果 UE 发送完该 UE的緩存中的数据所需的时间大于上述预先设定的时长,即在上 述预先设定的时长内, UE不能发送完该 UE的緩存中的数据, 则 UE重选 到上述目标小区。 如果在上述预先设定的时长内,该 UE又有新的数据传输到緩存中, 则 该 UE需要重新计算该 UE发送完该 UE的緩存中的数据所需的时间; 如果 重新计算的时间小于或等于上述时长的剩余时长,即该 UE的緩存中的数据 能够在上述时长的剩余时长内发送完毕,则该 UE不进行小区重选; 而如果 重新计算的时间大于上述时长的剩余时长,即该 UE的緩存中的数据不能在 上述时长的剩余时长内发送完毕, 则该 UE重选到上述目标小区。 具体地, 上述预先设定的时长可以为预先设置的定时器的定时时长, 进一步地, 步骤 101之前, UE还可以读取该 UE的服务小区的广播消息, 获得上述定时器和上述定时器的定时时长。 具体地, 该定时器和该定时器 的定时时长是由无线网络控制器预先设置, 并由上述 UE 的服务小区广播 的, 因此, UE通过读取该 UE的服务小区的广播消息, 即可获得预先设置 的定时器和该定时器的定时时长。 在步骤 101之后, UE还可以启动上述定 时器, 这样在 UE根据该 UE的緩存中的数据量和该 UE的传输速率计算该 UE发送完上述 UE的緩存中的数据所需的时间之后, 如果该 UE发送完上 述 UE的緩存中的数据所需的时间大于该定时器的定时时长,则 UE重选到 目标小区。 本实施例中, UE重选到上述目标小区可以为: UE向上述服务小区发 送 SI, 该 SI携带资源释放指示, 以指示该 UE的服务基站释放上述 UE占 用的服务小区的公共 E-DCH资源; 然后, 上述 UE读取上述目标小区的广 播消息, 获得该 UE进行上行接入所需的配置信息。 其中, SI携带资源释放指示可以为: SI各字段的值为 0, 也就是说, UE可以向该 UE的服务小区发送一个各字段的值均为 0的 SI (即 SI = 0 ), 用于指示该 UE的服务基站释放该 UE占用的服务小区的公共 E-DCH资源。 当然, 本申请并不仅限于此, 本申请对 SI携带资源释放指示的方式不作限 定。具体地,该 UE的服务基站接收到 UE发送的 SI之后,如果发现 SI = 0, 则该服务基站可以确定 UE要求释放该 UE占用的服务小区的公共 E-DCH 资源, 然后, 该服务基站释放上述 UE 占用的该 UE所在服务小区的公共 E-DCH资源。 进一步地, UE重选到上述目标小区之后, UE根据获得的上述配置信 息向上述目标小区发送小区更新消息, 并根据上述配置信息发起上行接入, 以接入上述目标小区, 接入该目标小区之后, UE可以在该目标小区进行上 行数据传输。
上述实施例中,处于 Cell-FACH状态的 UE在利用该 UE所在服务小区 的公共 E-DCH资源进行上行传输的过程中, 进行测量, 发现满足预定准则 的目标小区之后, 计算该 UE发送完该 UE的緩存中的数据所需的时间, 如 果该 UE发送完该 UE的緩存中的数据所需的时间大于上述预先设定的时 长, 则 UE重选到上述目标小区; 从而可以实现处于 Cell-FACH状态的 UE 在利用该 UE所在服务小区的公共 E-DCH资源进行上行传输的过程中, 重 选到满足预定准则的目标小区, 降低对目标小区的干扰。 图 2为本申请小区重选方法另一个实施例的流程图, 如图 2所示, 该 小区重选方法可以如下所述。
201 , 处于 Cell-FACH状态的 UE在利用该 UE所在服务小区的公共 E-DCH资源进行上行传输的过程中, 进行测量, 发现满足预定准则的目标 小区。
其中, 上述预定准则可以为: UE测量的同频小区的信号质量比该 UE 的服务小区的信号质量高预定阔值, 并且上述同频小区的信号质量比上述 服务小区的信号质量高上述预定阔值的时长大于或等于设定的小区重选时 长。 本实施例中, 上述预定阔值可以为 3dB , 当然本申请并不仅限于此, 本申请对预定阔值的大小不作限定。 具体地,处于 Cell-FACH状态的 UE在利用该 UE所在服务小区的公共 E-DCH资源进行上行传输的过程中, 可以进行同频测量, 并且对测量的所 有小区的信号质量在评估时间内进行排序, 如果某个同频小区的信号质量 比该 UE的服务小区的信号质量高 3dB,并且上述同频小区的信号质量比该 UE的服务小区的信号质量高 3dB的时长大于或等于设定的小区重选时长, 则上述同频小区为满足预定准则的目标小区。
202, UE读取上述目标小区的广播消息, 获得该 UE进行上行接入所 需的配置信息。
203 , UE 向上述服务小区发送调度信息, 该调度信息携带资源释放指 示, 以指示该 UE的服务基站释放上述 UE占用的服务小区的公共 E-DCH 资源。
其中, SI携带资源释放指示可以为: SI各字段的值为 0, 也就是说, UE可以向该 UE的服务小区发送一个各字段的值均为 0的 SI (即 SI = 0 ), 用于指示该 UE的服务基站释放该 UE占用的服务小区的公共 E-DCH资源。 当然, 本申请并不仅限于此, 本申请对 SI携带资源释放指示的方式不作限 定。具体地,该 UE的服务基站接收到 UE发送的 SI之后,如果发现 SI = 0, 则该服务基站可以确定 UE要求释放该 UE占用的服务小区的公共 E-DCH 资源, 然后, 该服务基站释放上述 UE 占用的该 UE所在服务小区的公共 E-DCH资源。
204, UE根据上述配置信息向目标小区发送小区更新消息。
进一步地,步骤 204之后, UE还可以根据上述配置信息发起上行接入, 以接入上述目标小区。 接入该目标小区之后, UE可以在该目标小区进行上 行数据传输。
需要说明的是, 本实施例中, 如果在读取目标小区广播消息的过程中, 上述 UE已经完成上行数据的发送, 则该 UE也需要继续进行小区重选。 由 于上述 UE在读取目标小区的广播消息同时继续在当前服务小区发送上行 数据, 因此可以减少小区重选过程中上行数据中断的时间。 上述实施例中,处于 Cell-FACH状态的 UE在利用该 UE所在服务小区 的公共 E-DCH资源进行上行传输的过程中, 进行测量, 发现满足预定准则 的目标小区之后, 该 UE读取该目标小区的广播消息, 获得该 UE进行上行 接入所需的配置信息, 然后该 UE向上述服务小区发送调度信息,上述调度 信息携带资源释放指示,以指示该 UE的服务基站释放上述 UE占用的服务 小区的公共 E-DCH资源。 通过上述过程, 上述 UE可以重选到上述目标小 区,从而可以实现处于 Cell-FACH状态的 UE在利用该 UE所在服务小区的 公共 E-DCH资源进行上行传输的过程中,重选到满足预定准则的目标小区, 降低对目标小区的干扰。
图 3为本申请资源释放方法一个实施例的流程图, 如图 3所示, 该资 源释放方法可以如下所述。
301 , 基站接收该基站服务的 UE发送的 SI, 该 SI携带资源释放指示。 具体地, 上述 UE 可以处于 Cell-FACH状态, 上述 SI 可以是处于 Cell-FACH状态的 UE在利用该 UE所在服务小区的公共 E-DCH资源进行 上行传输的过程中, 进行测量, 发现满足预定准则的目标小区之后, 向该 UE的服务小区发送的。 其中, 上述预定准则可以为: UE测量的同频小区的信号质量比该 UE 的服务小区的信号质量高预定阔值, 并且上述同频小区的信号质量比上述 服务小区的信号质量高上述预定阔值的时长大于或等于设定的小区重选时 长。 本实施例中, 上述预定阔值可以为 3dB , 当然本申请并不仅限于此, 本申请对预定阔值的大小不作限定。
302, 基站根据上述资源释放指示释放该 UE占用的该 UE所在服务小 区的公共 E-DCH资源。 具体地, 基站接收到 UE发送的 SI之后, 根据该 SI携带的资源释放指 示可以确定 UE要求释放该 UE占用的该 UE所在服务小区的公共 E-DCH 资源。 其中, SI携带资源释放指示可以为: SI各字段的值为 0, 即 SI = 0。 当 然,本申请并不仅限于此,本申请对 SI携带资源释放指示的方式不作限定。 具体地, 上述基站接收到 UE发送的 SI之后, 如果发现 SI = 0, 则该基站 可以确定 UE要求释放该 UE占用的服务小区的公共 E-DCH资源, 然后, 该基站释放上述 UE占用的该 UE所在服务小区的公共 E-DCH资源。 上述实施例中, 基站接收到该基站服务的 UE发送的 SI之后, 根据该 SI携带的资源释放指示可以释放该 UE 占用的该 UE所在服务小区的公共 E-DCH资源; 从而可以实现在 UE重选到满足预定准则的目标小区的过程 中, 释放该 UE占用的该 UE所在服务小区的公共 E-DCH资源。 本领域普通技术人员可以理解: 实现上述各方法实施例的全部或部分 步骤可以通过程序指令相关的硬件来完成。 前述的程序可以存储于一计算 机可读取存储介质中。 该程序在执行时, 执行包括上述各方法实施例的步 骤; 而前述的存储介质包括: ROM、 RAM, 磁碟或者光盘等各种可以存储 程序代码的介质。 图 4 为本申请用户设备一个实施例的结构示意图, 本实施例中的 UE 可以实现本申请图 1所示实施例的流程, 如图 4所示, 该 UE可以包括: 测 量模块 41、 计算模块 42和重选模块 43。
其中, 测量模块 41 , 用于当上述 UE处于 Cell-FACH状态时, 在该 UE 利用上述 UE所在服务小区的公共 E-DCH资源进行上行传输的过程中, 进 行测量, 发现满足预定准则的目标小区。
其中, 上述预定准则可以为: UE测量的同频小区的信号质量比该 UE 的服务小区的信号质量高预定阔值, 并且上述同频小区的信号质量比上述 服务小区的信号质量高上述预定阔值的时长大于或等于设定的小区重选时 长。 本实施例中, 上述预定阔值可以为 3dB , 当然本申请并不仅限于此, 本申请对预定阔值的大小不作限定。
计算模块 42, 用于根据上述 UE的緩存中的数据量和该 UE的传输速 率计算上述 UE发送完该 UE的緩存中的数据所需的时间; 具体地, 计算模 块 42可以根据上述 UE的緩存中的数据量与上述 UE的传输速率之商, 作 为该 UE发送完该 UE的緩存中的数据所需的时间; 其中, 上述 UE的緩存 中的数据量与该 UE的 SI中 TEBS字段的值相等; 上述 UE的传输速率等 于该 UE在该 UE的 TTI中传输的上行数据量与上述 UE的 TTI之商。 重选模块 43 , 用于当计算模块 42计算的上述 UE发送完该 UE的緩存 中的数据所需的时间大于预先设定的时长时, 重选到上述目标小区。 进一步地, 计算模块 42, 还用于在上述预先设定的时长内, 如果该 UE 的緩存接收到新的数据,则根据该 UE的緩存中的数据量和该 UE的传输速 率, 重新计算上述 UE发送完该 UE的緩存中的数据所需的时间。 重选模块 43 ,还用于当计算模块 42重新计算的时间大于上述时长的剩 余时长时, 重选到目标小区。
也就是说, 本实施例中, 如果 UE发送完该 UE的緩存中的数据所需的 时间小于或等于上述预先设定的时长, 即在上述预先设定的时长之内, UE 能够发送完该 UE的緩存中的数据, 则重选模块 43不进行小区重选; 而如 果 UE发送完该 UE的緩存中的数据所需的时间大于上述预先设定的时长, 即在上述预先设定的时长内, UE不能发送完该 UE的緩存中的数据, 则重 选模块 43重选到上述目标小区。 如果在上述预先设定的时长内,该 UE的緩存又接收到新的数据,则计 算模块 42需要重新计算该 UE发送完该 UE的緩存中的数据所需的时间; 如果计算模块 42 重新计算的时间小于或等于上述时长的剩余时长, 即该 UE的緩存中的数据能够在上述时长的剩余时长内发送完毕,则重选模块 43 不进行小区重选; 而如果计算模块 42重新计算的时间大于上述时长的剩余 时长, 即该 UE的緩存中的数据不能在上述时长的剩余时长内发送完毕,则 重选模块 43重选到上述目标小区。
上述实施例中,处于 Cell-FACH状态的 UE在利用该 UE所在服务小区 的公共 E-DCH资源进行上行传输的过程中, 测量模块 41进行测量, 发现 满足预定准则的目标小区之后, 计算模块 42计算该 UE发送完该 UE的緩 存中的数据所需的时间,如果该 UE发送完该 UE的緩存中的数据所需的时 间大于上述预先设定的时长, 则重选模块 43重选到上述目标小区; 从而可 以实现处于 Cell-FACH状态的 UE在利用该 UE所在服务小区的公共 E-DCH 资源进行上行传输的过程中, 重选到满足小区重选准则的目标小区, 降低 对目标小区的干扰。 图 5为本申请用户设备另一个实施例的结构示意图, 与图 4所示的用 户设备相比, 不同之处在于, 图 5所示的 UE还可以包括: 读取模块 44和 启动模块 45。 其中, 读取模块 44, 用于在测量模块 41进行测量之前, 读取上述服务 小区的广播消息, 获得预先设置的定时器和上述定时器的定时时长。 具体 地, 该定时器和该定时器的定时时长是由无线网络控制器预先设置, 并由 上述 UE的服务小区广播的, 因此, 读取模块 44通过读取该 UE的服务小 区的广播消息, 即可获得预先设置的定时器和该定时器的定时时长。
启动模块 45 , 用于在测量模块 41进行测量之后, 启动定时器。 这样在 计算模块 42根据该 UE的緩存中的数据量和该 UE的传输速率计算该 UE 发送完上述 UE的緩存中的数据所需的时间之后, 如果该 UE发送完上述 UE 的緩存中的数据所需的时间大于该定时器的定时时长, 则重选模块 43 重选到目标小区。 本实施例中, 重选模块 43可以包括: 消息发送子模块 431和消息读取 子模块 432。 其中, 消息发送子模块 431 , 用于向上述服务小区发送 SI, 该 SI携带 资源释放指示,以指示该 UE的服务基站释放该 UE占用的服务小区的公共 E-DCH资源; 其中, SI携带资源释放指示可以为: SI各字段的值为 0, 也 就是说, UE可以向该 UE的服务小区发送一个各字段的值均为 0的 SI (即 SI = 0 ), 用于指示该 UE 的服务基站释放该 UE 占用的服务小区的公共 E-DCH资源。 当然, 本申请并不仅限于此, 本申请对 SI携带资源释放指示 的方式不作限定。
消息读取子模块 432, 用于读取上述目标小区的广播消息, 获得上述 UE进行上行接入所需的配置信息。
进一步地, 图 5所示的 UE还可以包括: 发送模块 46, 用于根据消息 读取子模块 432获得的配置信息向上述目标小区发送小区更新消息, 并根 据消息读取子模块 432获得的配置信息发起上行接入, 以接入上述目标小 区。 接入该目标小区之后, UE可以在该目标小区进行上行数据传输。
上述 UE可以实现处于 Cell-FACH状态的 UE在利用该 UE所在服务小 区的公共 E-DCH资源进行上行传输的过程中, 重选到满足小区重选准则的 目标小区, 降低对目标小区的干扰。
图 6为本申请用户设备再一个实施例的结构示意图, 本实施例中的 UE 可以实现本申请图 2所示实施例的流程, 如图 6所示, 该 UE可以包括: 小 区测量模块 61、 资源释放模块 62、 消息读取模块 63和消息发送模块 64。
其中, 小区测量模块 61 , 用于当上述 UE处于 Cell-FACH状态时, 在 利用该 UE所在服务小区的公共 E-DCH资源进行上行传输的过程中, 进行 测量, 发现满足预定准则的目标小区。 消息读取模块 63 , 用于读取上述目标小区的广播消息, 获得该 UE进 行上行接入所需的配置信息。
资源释放模块 62, 用于向上述服务小区发送 SI, 该 SI携带资源释放指 示, 以指示该 UE的服务基站释放上述 UE占用的服务小区的公共 E-DCH 资源; 其中, SI携带资源释放指示可以为: SI各字段的值为 0, 也就是说, UE可以向该 UE的服务小区发送一个各字段的值均为 0的 SI (即 SI = 0 ), 用于指示该 UE的服务基站释放该 UE占用的服务小区的公共 E-DCH资源。 当然, 本申请并不仅限于此, 本申请对 SI携带资源释放指示的方式不作限 定。
消息发送模块 64,用于根据消息读取模块 63获得的上述配置信息向目 标小区发送小区更新消息。 进一步地, 本实施例的一种实现方式中, 该 UE还可以包括: 接入发起 模块 65, 用于根据消息读取模块 63获得的上述配置信息发起上行接入, 以 接入上述目标小区。 接入该目标小区之后, UE可以在该目标小区进行上行 数据传输。
需要说明的是, 本实施例中, 如果在消息读取模块 63读取目标小区广 播消息的过程中, 上述 UE已经完成上行数据的发送, 则该 UE也需要继续 进行小区重选。 由于在消息读取模块 63读取目标小区的广播消息同时继续 在当前服务小区发送上行数据, 因此可以减少小区重选过程中上行数据中 断的时间。
上述实施例中,处于 Cell-FACH状态的 UE在利用该 UE所在服务小区 的公共 E-DCH资源进行上行传输的过程中, 小区测量模块 61进行测量, 发现满足小区重选准则的目标小区之后, 消息读取模块 63读取上述目标小 区的广播消息,获得该 UE进行上行接入所需的配置信息, 然后资源释放模 块 62向上述服务小区发送 SI, 该 SI携带资源释放指示, 以释放上述 UE 占用的服务小区的公共 E-DCH资源;从而可以实现处于 Cell-FACH状态的 UE在利用该 UE所在服务小区的公共 E-DCH资源进行上行传输的过程中, 重选到满足小区重选准则的目标小区, 降低对目标小区的干扰。 图 7 为本申请基站一个实施例的结构示意图, 本实施例中的基站可以 实现本申请图 3所示实施例的流程, 如图 7所示, 该基站可以包括: 接收 模块 71和释放模块 72。 其中, 接收模块 71 , 用于接收该基站服务的 UE发送的调度信息, 该 调度信息携带资源释放指示; 具体地, 上述 UE可以处于 Cell-FACH状态, 上述 SI可以是处于 Cell-FACH状态的 UE在利用该 UE所在服务小区的公 共 E-DCH资源进行上行传输的过程中, 进行测量, 发现满足预定准则的目 标小区之后, 向该 UE的服务小区发送的。 其中, 上述预定准则可以为: UE测量的同频小区的信号质量比该 UE 的服务小区的信号质量高预定阔值, 并且上述同频小区的信号质量比上述 服务小区的信号质量高上述预定阔值的时长大于或等于设定的小区重选时 长。 本实施例中, 上述预定阔值可以为 3dB , 当然本申请并不仅限于此, 本申请对预定阔值的大小不作限定。
释放模块 72, 用于根据接收模块 71接收的资源释放指示释放该 UE占 用的上述 UE所在服务小区的公共 E-DCH资源。 具体地, 基站接收到 UE发送的 SI之后, 根据该 SI携带的资源释放指 示可以确定 UE要求释放该 UE占用的该 UE所在服务小区的公共 E-DCH 资源。 其中, SI携带资源释放指示可以为: SI各字段的值为 0, 即 SI = 0。 当 然,本申请并不仅限于此,本申请对 SI携带资源释放指示的方式不作限定。 具体地, 上述基站接收到 UE发送的 SI之后, 如果发现 SI = 0, 则该基站 可以确定 UE要求释放该 UE占用的服务小区的公共 E-DCH资源, 然后, 该基站释放上述 UE占用的该 UE所在服务小区的公共 E-DCH资源。 上述实施例中, 接收模块 71接收到该基站服务的 UE发送的 SI之后, 释放模块 72根据该 SI携带的资源释放指示可以释放该 UE占用的该 UE所 在服务小区的公共 E-DCH资源; 从而可以实现在 UE重选到满足预定准则 的目标小区的过程中,释放该 UE占用的该 UE所在服务小区的公共 E-DCH 资源。
本领域技术人员可以理解附图只是一个优选实施例的示意图, 附图中 的模块或流程并不一定是实施本申请所必须的。
本领域技术人员可以理解实施例中的装置中的模块可以按照实施例描 述进行分布于实施例的装置中, 也可以进行相应变化位于不同于本实施例 的一个或多个装置中。 上述实施例的模块可以合并为一个模块, 也可以进 一步拆分成多个子模块。 所属领域的技术人员可以清楚地了解到, 为描述的方便和简洁, 仅以 上述各功能模块的划分进行举例说明, 实际应用中, 可以根据需要而将上 述功能分配由不同的功能模块完成, 即将装置的内部结构划分成不同的功 能模块, 以完成以上描述的全部或者部分功能。 上述描述的系统, 装置和 单元的具体工作过程, 可以参考前述方法实施例中的对应过程, 在此不再 赘述。
在本申请所提供的几个实施例中, 应该理解到, 所揭露的系统, 装置 和方法, 可以通过其它的方式实现。 例如, 以上所描述的装置实施例仅仅 是示意性的, 例如, 所述模块或单元的划分, 仅仅为一种逻辑功能划分, 实际实现时可以有另外的划分方式, 例如多个单元或组件可以结合或者可 以集成到另一个系统, 或一些特征可以忽略, 或不执行。 另一点, 所显示 或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口, 装 置或单元的间接耦合或通信连接, 可以是电性, 机械或其它的形式。 作为单元显示的部件可以是或者也可以不是物理单元, 即可以位于一个地 方, 或者也可以分布到多个网络单元上。 可以根据实际的需要选择其中的 部分或者全部单元来实现本实施例方案的目的。 另外, 在本申请各个实施例中的各功能单元可以集成在一个处理单元 中, 也可以是各个单元单独物理存在, 也可以两个或两个以上单元集成在 一个单元中。 上述集成的单元既可以釆用硬件的形式实现, 也可以釆用软 件功能单元的形式实现。 所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销 售或使用时, 可以存储在一个计算机可读取存储介质中。 基于这样的理解, 本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方 案的全部或部分可以以软件产品的形式体现出来, 该计算机软件产品存储 在一个存储介质中, 包括若干指令用以使得一台计算机设备(可以是个人 计算机, 服务器, 或者网络设备等)或处理器(processor )执行本申请各个 实施例所述方法的全部或部分步骤。 而前述的存储介质包括: U盘、 移动 硬盘、 只读存储器(ROM, Read-Only Memory )、 随机存取存储器(RAM, Random Access Memory )、磁碟或者光盘等各种可以存储程序代码的介质。 以上所述, 以上实施例仅用以说明本申请的技术方案, 而非对其限制; 尽管参照前述实施例对本申请进行了详细的说明, 本领域的普通技术人员 应当理解: 其依然可以对前述各实施例所记载的技术方案进行修改, 或者 对其中部分技术特征进行等同替换; 而这些修改或者替换, 并不使相应技 术方案的本质脱离本申请各实施例技术方案的精神和范围。

Claims

权利要求
1、 一种小区重选方法, 其特征在于, 包括: 处于小区前向接入信道状态的用户设备在利用所述用户设备所在服务 小区的公共增强专用信道资源进行上行传输的过程中, 进行测量, 发现满 足预定准则的目标小区;
所述用户设备根据所述用户设备的緩存中的数据量和所述用户设备的 传输速率计算所述用户设备发送完所述用户设备的緩存中的数据所需的时 间;
如果所述用户设备发送完所述用户设备的緩存中的数据所需的时间大 于预先设定的时长, 则所述用户设备重选到所述目标小区。
2、 根据权利要求 1所述的方法, 其特征在于, 所述预定准则包括: 所 述用户设备测量的同频小区的信号质量比所述用户设备的服务小区的信号 质量高预定阔值, 并且所述同频小区的信号质量比所述服务小区的信号质 量高所述预定阔值的时长大于或等于设定的小区重选时长。
3、 根据权利要求 1所述的方法, 其特征在于, 所述用户设备根据所述 用户设备的緩存中的数据量和所述用户设备的传输速率计算所述用户设备 发送完所述用户设备的緩存中的数据所需的时间包括:
所述用户设备计算所述用户设备的緩存中的数据量与所述用户设备的 传输速率之商, 作为所述用户设备发送完所述用户设备的緩存中的数据所 需的时间;
所述用户设备的緩存中的数据量与所述用户设备的调度信息中全部增 强专用信道緩存状态字段的值相等;
所述用户设备的传输速率等于所述用户设备在所述用户设备的传输时 间间隔中传输的上行数据量与所述用户设备的传输时间间隔之商。
4、 根据权利要求 1-3任意一项所述的方法, 其特征在于, 还包括: 在所述预先设定的时长内, 如果所述用户设备的緩存接收到新的数据, 则所述用户设备根据所述用户设备的緩存中的数据量和所述用户设备的传 输速率, 重新计算所述用户设备发送完所述用户设备的緩存中的数据所需 的时间; 如果重新计算的时间大于所述时长的剩余时长, 则所述用户设备重选 到所述目标小区。
5、 根据权利要求 1所述的方法, 其特征在于, 所述预先设定的时长包 括预先设置的定时器的定时时长; 所述进行测量之前, 还包括: 所述用户设备读取所述服务小区的广播消息, 获得所述定时器和所述 定时器的定时时长; 所述进行测量之后, 还包括: 所述用户设备启动所述定时器; 所述用户设备发送完所述用户设备的緩存中的数据所需的时间大于预 先设定的时长包括: 所述用户设备发送完所述用户设备的緩存中的数据所需的时间大于所 述定时器的定时时长。
6、 根据权利要求 1所述的方法, 其特征在于, 所述用户设备重选到所 述目标小区包括: 所述用户设备向所述服务小区发送调度信息, 所述调度信息携带资源 释放指示, 以指示所述用户设备的服务基站释放所述用户设备占用的所述 服务小区的公共增强专用信道资源; 所述用户设备读取所述目标小区的广播消息, 获得所述用户设备进行 上行接入所需的配置信息。
7、 根据权利要求 6所述的方法, 其特征在于, 所述用户设备重选到所 述目标小区之后, 还包括: 所述用户设备根据获得的所述配置信息向所述目标小区发送小区更新 消息, 并根据所述配置信息发起上行接入, 以接入所述目标小区。
8、 一种小区重选方法, 其特征在于, 包括: 处于小区前向接入信道状态的用户设备在利用所述用户设备所在服务 小区的公共增强专用信道资源进行上行传输的过程中, 进行测量, 发现满 足预定准则的目标小区; 所述用户设备读取所述目标小区的广播消息, 获得所述用户设备进行 上行接入所需的配置信息; 所述用户设备向所述服务小区发送调度信息, 所述调度信息携带资源 释放指示, 以指示所述用户设备的服务基站释放所述用户设备占用的所述 服务小区的公共增强专用信道资源; 所述用户设备根据所述配置信息向所述目标小区发送小区更新消息。
9、 根据权利要求 8所述的方法, 其特征在于, 所述预定准则包括: 所 述用户设备测量的同频小区的信号质量比所述用户设备的服务小区的信号 质量高预定阔值, 并且所述同频小区的信号质量比所述服务小区的信号质 量高所述预定阔值的时长大于或等于设定的小区重选时长。
10、 根据权利要求 8或 9所述的方法, 其特征在于, 所述根据所述配 置信息向所述目标小区发送小区更新消息之后, 还包括: 所述用户设备根据所述配置信息发起上行接入, 以接入所述目标小区。
11、 一种资源释放方法, 其特征在于, 包括: 基站接收所述基站服务的用户设备发送的调度信息, 所述调度信息携 带资源释放指示; 所述基站根据所述资源释放指示释放所述用户设备占用的所述用户设 备所在服务小区的公共增强专用信道资源。
12、 根据权利要求 11所述的方法, 其特征在于, 所述调度信息携带资 源释放指示包括: 所述调度信息各字段的值为 0。
13、 一种用户设备, 其特征在于, 包括: 测量模块、 计算模块和重选 模块;
所述测量模块, 用于当所述用户设备处于小区前向接入信道状态时, 在所述用户设备利用所述用户设备所在服务小区的公共增强专用信道资源 进行上行传输的过程中, 进行测量, 发现满足预定准则的目标小区; 所述计算模块, 用于根据所述用户设备的緩存中的数据量和所述用户 设备的传输速率计算所述用户设备发送完所述用户设备的緩存中的数据所 需的时间;
所述重选模块, 用于当所述计算模块计算的所述用户设备发送完所述 用户设备的緩存中的数据所需的时间大于预先设定的时长时, 重选到所述 目标小区。
14、 根据权利要求 13所述的用户设备, 其特征在于, 所述计算模块, 具体用于计算所述用户设备的緩存中的数据量与所述 用户设备的传输速率之商, 作为所述用户设备发送完所述用户设备的緩存 中的数据所需的时间; 所述用户设备的緩存中的数据量与所述用户设备的调度信息中全部增 强专用信道緩存状态字段的值相等; 所述用户设备的传输速率等于所述用户设备在所述用户设备的传输时 间间隔中传输的上行数据量与所述用户设备的传输时间间隔之商。
15、 根据权利要求 13-14任意一项所述的用户设备, 其特征在于, 所述计算模块, 还用于在所述预先设定的时长内, 如果所述用户设备 的緩存接收到新的数据, 则根据所述用户设备的緩存中的数据量和所述用 户设备的传输速率, 重新计算所述用户设备发送完所述用户设备的緩存中 的数据所需的时间;
所述重选模块, 还用于当所述计算模块重新计算的时间大于所述时长 的剩余时长时, 重选到所述目标小区。
16、 根据权利要求 13所述的用户设备, 其特征在于, 还包括: 读取模 块和启动模块;
所述读取模块, 用于在所述测量模块进行测量之前, 读取所述服务小 区的广播; %息, 获得预先设置的定时器和所述定时器的定时时长;
所述启动模块, 用于在所述测量模块进行测量之后, 启动所述定时器。
17、 根据权利要求 16所述的用户设备, 其特征在于, 所述重选模块包 括: 消息发送子模块和消息读取子模块;
所述消息发送子模块, 用于向所述服务小区发送调度信息, 所述调度 信息携带资源释放指示, 以指示所述用户设备的服务基站释放所述用户设 备占用的所述服务小区的公共增强专用信道资源; 所述消息读取子模块, 用于读取所述目标小区的广播消息, 获得所述 用户设备进行上行接入所需的配置信息。
18、 根据权利要求 17所述的用户设备, 其特征在于, 还包括: 发送模 块;
所述发送模块, 用于根据所述消息读取子模块获得的所述配置信息向 所述目标小区发送小区更新消息, 并根据所述消息读取子模块获得的所述 配置信息发起上行接入, 以接入所述目标小区。
19、 一种用户设备, 其特征在于, 包括: 小区测量模块、 消息读取模 块、 资源释放模块和消息发送模块;
所述小区测量模块, 用于当所述用户设备处于小区前向接入信道状态 时, 在利用所述用户设备所在服务小区的公共增强专用信道资源进行上行 传输的过程中, 进行测量, 发现满足预定准则的目标小区; 所述消息读取模块, 用于读取所述目标小区的广播消息, 获得所述用 户设备进行上行接入所需的配置信息; 所述资源释放模块, 用于向所述服务小区发送调度信息, 所述调度信 息携带资源释放指示, 以指示所述用户设备的服务基站释放所述用户设备 占用的所述服务小区的公共增强专用信道资源; 所述消息发送模块, 用于根据所述消息读取模块获得的所述配置信息 向所述目标小区发送小区更新消息, 以重选到所述目标小区。
20、 根据权利要求 19所述的用户设备, 其特征在于, 还包括: 接入发 起模块;
所述接入发起模块, 用于根据所述消息读取模块获得的所述配置信息 发起上行接入, 以接入所述目标小区。
21、 一种基站, 其特征在于, 包括: 接收模块和释放模块; 所述接收模块, 用于接收所述基站服务的用户设备发送的调度信息, 所述调度信息携带资源释放指示;
所述释放模块, 用于根据所述接收模块接收的所述资源释放指示释放 所述用户设备占用的所述用户设备所在服务小区的公共增强专用信道资
PCT/CN2013/071293 2012-06-08 2013-02-02 小区重选方法、资源释放方法、用户设备和基站 WO2013181946A1 (zh)

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