WO2013113230A1 - 发送数据的方法及终端 - Google Patents

发送数据的方法及终端 Download PDF

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Publication number
WO2013113230A1
WO2013113230A1 PCT/CN2012/084498 CN2012084498W WO2013113230A1 WO 2013113230 A1 WO2013113230 A1 WO 2013113230A1 CN 2012084498 W CN2012084498 W CN 2012084498W WO 2013113230 A1 WO2013113230 A1 WO 2013113230A1
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WO
WIPO (PCT)
Prior art keywords
cell
virtual set
virtual
unit
metric value
Prior art date
Application number
PCT/CN2012/084498
Other languages
English (en)
French (fr)
Inventor
李秉肇
陈燕燕
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP20120867496 priority Critical patent/EP2811782A4/en
Publication of WO2013113230A1 publication Critical patent/WO2013113230A1/zh
Priority to US14/449,962 priority patent/US20140342741A1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/38—TPC being performed in particular situations
    • H04W52/40—TPC being performed in particular situations during macro-diversity or soft handoff
    • 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
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0016—Hand-off preparation specially adapted for end-to-end data sessions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/38—TPC being performed in particular situations
    • H04W52/50—TPC being performed in particular situations at the moment of starting communication in a multiple access environment
    • 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
    • H04W36/00835—Determination of neighbour cell lists
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/241—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account channel quality metrics, e.g. SIR, SNR, CIR, Eb/lo

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method and a terminal for transmitting data. Background technique
  • the terminal in the state of the Cell Dedicated Channel (Cell DCH) is almost always in the soft handover state, and the soft handover is that the terminal is in a cell.
  • the soft handover is that the terminal is in a cell.
  • When entering another cell first establish communication with the new base station, and then switch off the communication mode with the original base station when receiving the original base station signal below a threshold, and the terminal in the soft handover state, and multiple The base station or the cell maintains communication, and these cells together constitute an active set of the terminal, and all cells in the active set are all-frequency cells.
  • the communication quality between the base station and the base station changes continuously.
  • the activation set of the terminal In order to ensure the quality of the received signal of the terminal, the activation set of the terminal also needs to be updated accordingly, that is, the cell with poor centralized signal quality is deleted from the active set. And the cell with the better out-of-set signal is activated to join the active set.
  • the UE For the maintenance of the active set, the UE needs to report the measurement.
  • the RNC performs maintenance according to the measurement result.
  • the commonly used active set maintenance events are: (1) The quality of a cell signal is good to a certain extent, and it is courage to join the active set; (2) the signal quality of the cell If the difference is to a certain extent, it is deleted from the active set; (3) the quality of one cell outside the active set is better than the quality of one cell in the active set.
  • the active set reaches the preset number, the active set is replaced by the cell with good signal quality outside the active set. A cell with poor internal signal quality.
  • the active set In the Cell DCH state, the active set only exists on the same frequency point, and the virtual frequency is configured on the different frequency points.
  • the active set, the terminal configured with the inter-frequency virtual active set inherits the active set update principle of the same frequency measurement, such as the update principle of (1), (2), (3), and maintains a virtual difference on the measured different frequency points.
  • the virtual activation set measurement event When the virtual activation set measurement event is triggered, the UE does not report the measurement result to the network, and the UE internally uses these events to update the activation set, and the updated result is not reported to the network measurement, and the inter-frequency event is performed.
  • the overall quality of the virtual active set is compared with the quality of the same-frequency serving cell to perform handover decisions.
  • the inventors of the present invention found that in the forward access channel connection state (Cell Forward Access Channel), the terminal does not maintain the active set, and the terminal only keeps connected with the serving cell. Therefore, when the terminal works in the Cell FACH state, the neighboring cell cannot be considered, causing interference to the cell. Summary of the invention
  • aspects of the present invention provide a method for transmitting data, a method for cell reselection, and a terminal, which can establish and use a cell virtual set in a forward access channel connection state, so that when the terminal works in a forward access channel connection state , can reduce interference to neighboring cells.
  • a method of transmitting data including:
  • a cell virtual set directly or according to a signal metric value of a neighboring cell, where the cell virtual set includes at least a serving cell;
  • a method for cell reselection including:
  • a cell virtual set directly or according to a signal metric value of a neighboring cell, where the cell virtual set includes at least a serving cell;
  • Cell reselection is performed according to the system virtual information of the cell virtual set and the stored cell in the cell virtual set.
  • a terminal comprising:
  • a first virtual set establishing unit configured to establish a cell virtual set directly or according to a signal metric value of the neighboring cell in a forward access channel connection state
  • a monitoring unit configured to monitor a public relative grant channel of the non-serving cell in the cell virtual set established by the first virtual set establishing unit
  • a first reading unit configured to read indication information in a common relative authorization channel monitored by the monitoring unit
  • An adjusting unit configured to adjust power of data to be sent according to the indication information read by the first reading unit
  • a terminal comprising:
  • a second virtual set establishing unit configured to establish a cell virtual set directly or according to a signal metric value of the neighboring cell in a forward access channel connection state
  • a second reading unit configured to read a system information broadcast of a cell in a cell virtual set established by the second virtual set establishing unit
  • a storage unit configured to store the system information broadcast read by the second reading unit;
  • a reselecting unit configured to broadcast a system information broadcast according to the cell virtual set and the storage unit established by the second virtual set establishing unit Perform cell reselection.
  • FIG. 1 is a schematic diagram of an embodiment of a method for transmitting data in an embodiment of the present invention
  • FIG. 2 is a schematic diagram of an embodiment of a method for sending cell reselection according to an embodiment of the present invention
  • 3 is a schematic diagram of an embodiment of a terminal in an embodiment of the present invention
  • FIG. 4 is a schematic diagram of another embodiment of a terminal in an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of another embodiment of a terminal according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of another embodiment of a terminal in an embodiment of the present invention. detailed description
  • GSM Global System for Mobile Communications
  • CDMA Code Division Multiple Access
  • CDMA Code Division Multiple
  • TDMA Time Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency OFDMA (Orthogonal Frequency-Division Multiple Access) system
  • SC-FDMA single carrier FDMA
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • a wireless terminal which may be a device that provides voice and/or data connectivity to the user, a handheld device with wireless connectivity, or other processing device that is connected to the wireless modem.
  • the wireless terminal can communicate with one or more core networks via a radio access network (eg, RAN, Radio Access Network), and the wireless terminal can be a mobile terminal.
  • a radio access network eg, RAN, Radio Access Network
  • PCS Personal Communication Service
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • a wireless terminal may also be called 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, or User Equipment.
  • a base station can refer to a device in an access network that communicates with a wireless terminal over one or more sectors over an air interface.
  • the base station can be used to convert the received air frame to the IP packet as a router between the wireless terminal and the rest of the access network, wherein the remainder of the access network can include an Internet Protocol (IP) network.
  • IP Internet Protocol
  • the base station can also coordinate attribute management of the air interface.
  • the base station may be a base station (BTS, Base Transceiver Station) in GSM or CDMA, or a base station (NodeB) in WCDMA, or an evolved base station in LTE (NodeB or eNB or e-NodeB, evolutional Node B), the invention is not limited.
  • the base station controller may be a base station controller (BSC) in GSM or CDMA, or may be a radio network controller (RNC) in WCDMA, which is not limited by the present invention.
  • BSC base station controller
  • RNC radio network controller
  • FIG. 1 is a schematic flowchart of a method for transmitting data according to an embodiment of the present invention. 101. The terminal establishes a cell virtual set directly or according to a signal metric value of the neighboring cell in a forward access channel connection state.
  • the terminal directly establishes the cell virtual set in the forward access channel connection state: after detecting the signal of the serving cell and the neighboring cell, the terminal adds all the measured cells to the cell virtual set, and the cell virtual set includes at least the serving cell.
  • the signal metric may be a signal quality, a signal strength, a corresponding S value or an R value of the cell, and the S value includes a signal strength S value Srxlev and a signal quality S value Squal; the calculation formula of the R value depends on whether it is a serving cell or a partial cell; For:
  • Qrxlevmeas is the measured current serving cell receiving power, which refers to the RSCP value of the P-CCPCH channel;
  • Qrxlevmin is the minimum receiving power of the serving cell;
  • the parameter is read from the system broadcast message of the serving cell, and the general terminal needs to do certain after reading.
  • Arithmetic conversion; Pcompensation is the compensation value;
  • Qqualmeas represents the measured quality level value of the cell
  • Qqualmin represents the minimum required quality level value of the serving cell
  • Rn Qmeans, n+Qoffset, n+ Qoffmbms-TO nx(l-Ln);
  • Rs represents the R value of the serving cell
  • Rn represents the R value of the neighboring cell
  • Qmeans, s represents the measured value of the serving cell
  • Qmeans, n identifies the measured value of the neighboring cell
  • Qhyst s represents the amount of hysteresis
  • Qoffset n represents the serving cell
  • the offset from the neighboring cell, Qoffmbms represents the offset.
  • the S value and the R value are calculated according to the above formula; in fact, this is a prior art, and will not be described in detail herein.
  • the signal metric value is used to establish a cell virtual set, and includes: comparing a signal metric value of the neighboring cell with a preset threshold, and adding a neighboring cell whose signal metric value is greater than a preset threshold to the cell virtual set.
  • all cells measured by the terminal may be added to the cell virtual in another
  • a preset number is configured for a cell that is added to the virtual set, and the configured preset quantity is greater than or equal to the measured number of cells, all the measured cells are added to the cell virtual set.
  • the neighboring cells when the preset number of the cell virtual set configuration is less than the measured number of cells, the neighboring cells are sorted according to the size of the signal metric value; The neighboring cell with the largest number of signal metrics is added to the cell virtual set; for example, the preset number of cell virtual set configuration is 5, when a serving cell and 7 neighboring cells are detected, then the neighboring cell is sized according to the signal metric value. Sorting, adding the serving cell and the four neighboring cells to the cell virtual set, of course, the number of neighboring cells may be 4 or 1, 2, 3.
  • the cell virtual set provided by the embodiment of the present invention is a connection state of the terminal in the forward access channel (Cell
  • the cell virtual set provided by the embodiment of the present invention is a set of all cells detected by the terminal;
  • the cell virtual set provided by the embodiment of the present invention is a set of all cells detected by the terminal;
  • the preset threshold is set, the cell virtual set provided by the embodiment of the present invention is a set of the serving cell and the neighboring cell that is smaller than the preset number of signal metrics;
  • the cell virtual set is a set consisting of a serving cell and a neighboring cell whose signal metric value is greater than a preset threshold.
  • the neighboring cell added to the cell virtual set may be an intra-frequency neighboring cell of the serving cell or an inter-frequency neighboring cell of the serving cell, or a different system neighboring cell.
  • the signal metric value of the cell in the cell virtual set may be In order to keep the signal metric value of the cell of the cell virtual set as best as possible, the cell in the virtual set is updated, and the cell update in the virtual set has a certain update rule, and the update rule generally includes the addition and deletion of the cell. Or replace, as described below.
  • a preset threshold is set for a cell that is added to a cell virtual set, and when a signal metric value of the first cell outside the cell virtual set is always higher than the preset threshold within a preset time, Adding the first cell to the cell virtual set; when the second cell in the virtual set is lower than the preset threshold in a preset time, the second cell lower than the preset threshold is The virtual set is deleted.
  • the preset threshold is not set for the cell that joins the virtual set, and may be updated by the weighted average of the cells in the virtual set.
  • the calculation formula of the weighted average is:
  • T is a weighted average
  • W is a weighting parameter
  • S1 and S2 are signal metric values of two cells in the virtual set.
  • S1 represents the serving cell signal quality
  • S2 represents the non-serving cell signal quality average
  • the preset threshold is not set for the cell that is added to the cell virtual set
  • when the signal metric value of the cell outside the virtual set is always higher than the weighted average of the cell in the virtual set within the preset time. Adding a cell outside the virtual set to the cell virtual set.
  • the cell in the cell virtual set when the cell in the cell virtual set is always lower than the cell weighted average in the cell virtual set within the preset time, the cell below the preset threshold is taken from The virtual set is deleted.
  • the cell virtual set when the cell virtual set reaches a preset number, when the cell in the cell virtual set reaches a preset number, the first cell signal metric value outside the cell virtual set is within a preset time.
  • the second cell in the virtual set is replaced by the first cell, and the second cell is the cell with the lowest signal metric in the virtual set.
  • Preset threshold, preset time, preset quantity, and per-cell of the virtual set used by the terminal The configuration parameters such as the preset weight value are configured by the radio network controller to the terminal, and the terminal receives the configuration parameter sent by the radio network controller.
  • the terminal monitors a common relative grant channel of the non-serving cell in the cell virtual set, and reads indication information in the common relative grant channel.
  • C-RGCH Common Relative Grant Channel
  • the terminal adjusts the power of the data to be sent according to the read indication information, and sends the to-be-sent data with the adjusted power.
  • the indication information read by the terminal is sent by the neighboring cell, and is generally an indication information that requires the terminal to reduce the transmission power.
  • the terminal After the terminal reads the indication information in the public relative authorization channel, the terminal adjusts the data to be sent according to the indication of the indication information. The power is then sent to the data to be transmitted with the adjusted power, so that interference to neighboring cells can be effectively avoided.
  • the terminal sends data with a transmit power, and the terminal can adjust the transmit power.
  • the terminal reads the indication information for reducing the transmit data power in the common relative grant channel
  • the terminal reduces the power of the data to be sent according to the indication information, if After the power is reduced, the indication information for reducing the power of the transmitted data is also read, and then the terminal further reduces the transmission power under the condition that the data to be transmitted can be effectively transmitted to the receiver. To avoid interference to neighboring cells.
  • a cell virtual set in a forward access channel connection state, a cell virtual set is established according to a signal metric value of a neighboring cell; a common relative grant channel of the non-serving cell in the cell virtual set is monitored, and the public relative is read. And indicating the information to be sent according to the read indication information, and transmitting the to-be-sent data with the adjusted power.
  • the method for transmitting data provided by the embodiment of the present invention controls the public relative grant channel of the neighboring cell in the forward access channel connection state, and controls the sending of the data according to the indication information of the common relative grant channel of the neighboring cell.
  • the interference of the terminal to the neighboring cell can be avoided.
  • the terminal when the reporting condition is met, the terminal reports the virtual set to a network side device, such as a Radio Network Controller (RNC), and the reporting condition includes at least one of the following:
  • RNC Radio Network Controller
  • the message sent by the terminal carries the virtual set information of the terminal in the FACH state.
  • UTRAN UMTS Terrestrial Radio Access Network
  • the terminal receives a request on the network virtual set of the network side; the request message on the cell virtual set may be a Radio Resource Control Protocol (RRC) message.
  • RRC Radio Resource Control Protocol
  • the interference level of any one of the cells in the virtual set of the cell reaches the specified interference level value, and the terminal finds the interference level of the serving cell or the interference level of the neighboring cell by reading the broadcast message of the system, and the specified interference level value is a threshold value.
  • the terminal reports the cell virtual set to the radio network controller.
  • the predefined reporting conditions may be: a) the virtual set adds a different system or an inter-frequency cell; or b) periodically reports, and reports the condition at a certain interval.
  • the terminal reports the cell virtual set to the network side device, such as the radio network controller.
  • the radio network controller can use the cell virtual set as a reference when the RNC establishes an active set when the terminal transits to the Cell DCH state; the terminal is in the Cell DCH state, and multiple The cell maintains communication, and the set of cells that are simultaneously in communication with the terminal is called an active set.
  • the RNC After receiving the cell virtual set reported by the terminal, the RNC knows that there are four cells in the cell virtual set, including the serving cell A and three neighboring cells ⁇ C, D; if the RNC decides to let the terminal switch from the Cell FACH state to the Cell DCH state Then, the RNC needs to establish an activation set for the terminal, and the RNC uses the cell in the virtual group of the cell as the cell that establishes the active set for the terminal to use. When the terminal leaves the Cell FACH state and switches to the Cell DCH state, or the terminal is in the Cell FACH state, after the uplink connection is released, the terminal clears the cell virtual set.
  • the cell virtual set reporting may be independent of the process of sending data.
  • the terminal may report the virtual set of the cell to the network side device, and the network side device determines that the terminal is forwarded. A reference to the state of the access channel into the state of the dedicated channel.
  • FIG. 2 is a schematic flowchart of a method for cell reselection according to another embodiment of the present invention.
  • the terminal establishes a cell virtual set directly or according to a signal metric value of the neighboring cell in a forward access channel connection state.
  • the terminal directly establishes the cell virtual set in the forward access channel connection state: after detecting the signal of the serving cell and the neighboring cell, the terminal adds all the measured cells to the cell virtual set, and the cell virtual set includes at least the serving cell.
  • the signal metric may be a signal quality, a signal strength, a corresponding S value or an R value of the cell, and the S value includes a signal strength S value Srxlev and a signal quality S value Squal; the calculation formula of the R value depends on whether it is a serving cell or a partial cell; For:
  • Qrxlevmeas is the measured received power of the current serving cell, which refers to the RSCP value of the P-CCPCH channel;
  • Qrxlevmin is the minimum received power of the serving cell;
  • the parameter is read from the system broadcast message, and the general terminal needs to perform certain arithmetic conversion after reading. ;
  • Pcompensation is the compensation value;
  • Qqualmeas represents the measured quality level value of the cell
  • Qqualmin represents the minimum required quality level value of the serving cell
  • Rn Qmeans, n+Qoffset, n+ Qoffmbms-TO nx(l-Ln);
  • Rs represents the R value of the serving cell
  • Rn represents the R value of the neighboring cell
  • Qmeans, s represents the measured value of the serving cell
  • Qmeans, n identifies the measured value of the neighboring cell
  • Qhyst s represents the amount of hysteresis
  • Qoffset n Indicates the offset between the serving cell and the neighboring cell
  • Qoffmbms represents the offset.
  • the S value and the R value are calculated according to the above formula; in fact, this is a prior art, and will not be described in detail herein.
  • the signal metric of the serving cell cannot be considered.
  • the cell virtual set is established according to the signal metric value of the neighboring cell, including: The signal metric value of the neighboring cell is compared with a preset threshold, and the neighboring cell whose signal metric value is greater than the preset threshold is added to the cell virtual set.
  • all cells measured by the terminal may be added to the cell virtual set.
  • the neighboring cells when the preset number of the cell virtual set configuration is less than the measured number of cells, the neighboring cells are sorted according to the size of the signal metric value; The neighboring cell with the largest number of signal metrics is added to the cell virtual set; for example, the preset number of cell virtual set configuration is 5, when a serving cell and 7 neighboring cells are detected, then the neighboring cell is sized according to the signal metric value. Sorting, adding the serving cell and the four neighboring cells to the cell virtual set, of course, the number of neighboring cells may be 4 or 1, 2, 3.
  • the cell virtual set provided by the embodiment of the present invention is a set of cells established by the terminal in a Cell Forward Access Channel (Cell Forward Access Channel).
  • Cell Forward Access Channel Cell Forward Access Channel
  • the provided cell virtual set is a set of all the cells detected by the terminal.
  • the preset number is set, and the preset quantity is greater than or equal to the measured number of cells
  • the cell virtual set provided by the embodiment of the present invention is detected by the terminal.
  • the cell virtual set provided by the embodiment of the present invention is a set consisting of a serving cell and a neighboring cell whose signal metric value is greater than a preset threshold.
  • the neighboring cell added to the cell virtual set may be an intra-frequency neighboring cell of the serving cell or an inter-frequency neighboring cell of the serving cell, or an inter-system neighboring cell.
  • the update rule generally includes the addition, deletion or replacement of the cell, as described below.
  • a preset threshold is set for a cell that is added to a cell virtual set, and when a signal metric value of the first cell outside the cell virtual set is always higher than the preset threshold within a preset time, Adding the first cell to the cell virtual set; when the second cell in the virtual set is lower than the preset threshold in a preset time, the second cell lower than the preset threshold is The virtual set is deleted.
  • the preset threshold is not set for the cell that joins the virtual set, and may be updated by the weighted average of the cells in the virtual set.
  • the calculation formula of the weighted average is:
  • T is a weighted average
  • W is a weighting parameter
  • S1 and S2 are signal metric values of two cells in the virtual set.
  • S1 represents the serving cell signal quality
  • S2 represents the non-serving cell signal quality average
  • the preset threshold is not set for the cell that is added to the cell virtual set
  • when the signal metric value of the cell outside the virtual set is always higher than the weighted average of the cell in the virtual set within the preset time. Adding a cell outside the virtual set to the cell virtual set.
  • the cell in the cell virtual set when the cell in the cell virtual set is always lower than the cell weighted average in the cell virtual set within the preset time, the cell below the preset threshold is taken from The virtual set is deleted.
  • the cell virtual set when the cell virtual set reaches a preset number, when the small number When the cell in the virtual set of the area reaches the preset number, the first cell signal metric value outside the cell virtual set is always higher than the second cell signal metric value in the cell virtual set in the preset time, and the first cell is replaced by the first cell.
  • the second cell in the virtual set is the cell with the lowest signal metric in the virtual set.
  • the configuration parameters such as the preset threshold, the preset time, the preset quantity, and the preset weight value of each cell in the virtual set are configured by the radio network controller to the terminal, and the terminal receives the configuration parameter sent by the radio network controller. .
  • the terminal reads a system information broadcast of a cell in the cell virtual set, and stores the system information broadcast.
  • the system information broadcast may indicate, in the cell virtual set, which cells are forbidden cells or reserved cells. After the terminal reads the system information broadcast, the forbidden cell or the reserved cell in the virtual set may be removed from the virtual set, or The forbidden cell or the reserved cell in the virtual set is set to prohibit the access flag.
  • the system information broadcast Since the system information broadcast is always changing, the system information broadcast is periodically read so that the stored system information broadcast is consistent with the latest broadcast message of the virtual centralized cell.
  • the terminal performs cell reselection according to the cell virtual set and the system information broadcast of the stored cell in the cell virtual set.
  • the virtual centralized cell is used as the candidate cell of the reselected target cell, and is reselected to a certain cell in the virtual according to the reselection criterion (S-criteria R criterion) described above.
  • the system information broadcast indicates that there is a reserved cell or a forbidden cell in the virtual set, the reserved cell or the forbidden cell is excluded at the time of reselection according to the indication of the system information broadcast.
  • the cells set with the access prohibition flag are excluded before the cell reselection, and these settings are prohibited from accessing the flag.
  • the cell does not become the target cell; then the remaining cells are sorted according to the reselection parameters, the neighboring cell with the largest reselection parameter is selected as the target cell, and the cell is switched from the serving cell to the target cell.
  • the cell reselection method provided by the embodiment of the present invention establishes a cell virtual set directly or according to a signal metric value of a neighboring cell in a forward access channel connection state; and reads a system information broadcast of a cell in the cell virtual set, And storing from the system information broadcast; performing cell reselection according to system information broadcast according to the cell virtual set and the stored cell in the cell virtual set. After the terminal switches from the serving cell to the target cell, interference to the neighboring cell can be avoided. Moreover, the speed of cell reselection can be accelerated.
  • the terminal when the reporting condition is met, reports the virtual set to a network side device, such as a Radio Network Controller (RNC), and the reporting condition includes at least one of the following:
  • RNC Radio Network Controller
  • the message sent by the terminal carries the virtual set information of the terminal in the FACH state.
  • UTRAN UMTS Terrestrial Radio Access Network
  • the terminal receives a request on the network virtual set of the network side; the request message on the cell virtual set may be a Radio Resource Control Protocol (RRC) message.
  • RRC Radio Resource Control Protocol
  • the interference level of any one of the cells in the virtual set of the cell reaches the specified interference level value, and the terminal finds the interference level of the serving cell or the interference level of the neighboring cell by reading the broadcast message of the system, and the specified interference level value is a threshold value.
  • the terminal reports the cell virtual set to the radio network controller.
  • the predefined reporting conditions may be: a) the virtual set adds a different system or an inter-frequency cell; or b) periodically reports, and reports the condition at a certain interval.
  • the terminal reports the cell virtual set to the network side device, such as the radio network controller.
  • the radio network controller can use the cell virtual set as the RNC to establish an active set when the terminal transits to the Cell DCH state.
  • Time reference The terminal is in the Cell DCH state, and maintains communication with multiple cells at the same time, and the set of cells that simultaneously communicate with the terminal is called an active set.
  • the RNC After receiving the cell virtual set reported by the terminal, the RNC knows that there are four cells in the cell virtual set, including the serving cell A and three neighboring cells ⁇ C, D; if the RNC decides to let the terminal switch from the Cell FACH state to the Cell DCH state Then, the RNC needs to establish an activation set for the terminal, and the RNC uses the cell in the virtual group of the cell as the cell that establishes the active set for the terminal to use.
  • the terminal When the terminal leaves the Cell FACH state and switches to the Cell DCH state, or the terminal is in the Cell FACH state, after the uplink connection is released, the terminal clears the cell virtual set.
  • the cell virtual set can be independent of the cell reselection process. After the terminal establishes the cell virtual set in the Cell FACH state, the cell virtual set can be reported to the network side for the network side as the Cell FACH state. Switch to the Cell DCH Status Reference.
  • the terminal includes: a first virtual set establishing unit 301, a listening unit 302, a first reading unit 303, an adjusting unit 304, and a transmitting unit 305.
  • the first virtual set establishing unit 301 is configured to establish a cell virtual set directly or according to a signal metric value of the neighboring cell in a forward access channel connection state.
  • the monitoring unit 302 is configured to monitor a public relative grant channel of the non-serving cell in the cell virtual set established by the first virtual set establishing unit 301.
  • the first reading unit 303 is configured to read the indication information in the public relative authorization channel monitored by the monitoring unit 302.
  • the adjusting unit 304 is configured to adjust power of the data to be sent according to the indication information read by the first reading unit 303.
  • the sending unit 305 is configured to send the to-be-sent data by using the adjusted power of the adjusting unit 304.
  • the first virtual set establishing unit 301 establishes a cell virtual set directly or according to the signal metric value of the neighboring cell in the forward access channel connection state; the listening unit 302 monitors the first a common relative grant channel of the non-serving cell in the cell virtual set established by the virtual set establishing unit 301; the first reading unit 303 reads the indication information in the common relative grant channel monitored by the intercepting unit 302; The indication information read by the first reading unit 303 adjusts the power of the data to be transmitted; the sending unit 305 transmits the data to be transmitted with the power adjusted by the adjustment unit 304.
  • the terminal provided by the embodiment of the present invention can avoid interference of the terminal to the neighboring cell.
  • the first virtual set establishing unit 301 is configured to: when the preset number of the virtual set of the cell is not configured, or the preset number of the virtual set of the cell is greater than or equal to the measured number of cells, the measured All cells join the community virtual set.
  • the first virtual set establishing unit 301 is configured to compare the signal metric value of the neighboring cell with a preset threshold; and add the serving cell and the neighboring cell whose signal metric value is greater than the preset threshold to the cell virtual set.
  • the first virtual set establishing unit 301 is configured to: when the preset number of the virtual set of the cell is smaller than the measured number of cells, sort the neighboring cells according to the size of the signal metric value; A neighboring cell with a preset number of signal metrics is added to the cell.
  • FIG. 4 is a schematic structural diagram of a terminal according to another embodiment of the present invention.
  • the terminal further includes an update unit 306 and an upper unit 307.
  • the updating unit 306 is configured to update the cell virtual set according to an update rule.
  • the updating unit 306 is configured to: when a signal metric value of the first cell outside the cell virtual set is higher than the preset threshold in a preset time, or a signal of the first cell outside the cell virtual set When the metric value is always higher than the weighted average of the cells in the virtual set within the preset time, the first 'J, the area is added to the virtual set; or,
  • the updating unit 306 is configured to: when the cell in the virtual group of the cell reaches a preset number, the first cell signal metric value outside the cell virtual set is always higher than the second cell signal in the cell virtual set in the preset time. a metric value, replacing the second cell in the virtual set with the first cell.
  • the reporting unit 307 is configured to report the virtual cell collection to the network side when the reporting condition is met, and the satisfying reporting condition includes at least one of the following: sending an arbitrary message to the network side, and receiving a virtual set reporting request on the network side
  • the interference level of any one of the cells in the virtual set reaches a specified interference level value and satisfies a predefined reporting condition.
  • FIG. 5 is a schematic structural diagram of a terminal according to another embodiment of the present invention.
  • the terminal further includes a receiving unit 308, a state converting unit 309, and an emptying unit 310.
  • the receiving unit 308 is configured to receive a state transition indication sent by the network side.
  • the state transition unit 309 is configured to leave the forward access channel connection state or release the uplink connection after the receiving unit 308 receives the state transition indication.
  • the clearing unit 310 is configured to clear the cell virtual set after the state transition unit 309 completes the state transition.
  • FIG. 6 is a schematic structural diagram of a terminal according to another embodiment of the present invention.
  • the terminal includes:
  • the second virtual set establishing unit 311 is configured to establish a cell virtual set directly or according to a signal metric value of the neighboring cell in a forward access channel connection state.
  • the second reading unit 312 is configured to read system information broadcast of the cell in the cell virtual set established by the second virtual set establishing unit 311.
  • the storage unit 313 is configured to store the system information broadcast read by the second reading unit 312.
  • the reselecting unit 314 is configured to perform cell reselection according to the cell virtual set established by the second virtual set establishing unit 311 and the system information broadcast stored by the storage unit 313.
  • the second virtual set establishing unit 311 is in the forward access channel connection state, The cell virtual set is established directly or according to the signal metric value of the neighboring cell; the second reading unit 312 reads the system information broadcast of the cell in the cell virtual set established by the second virtual set establishing unit 311; the storage unit 313 stores the first The system information broadcast read by the second reading unit 312; the reselecting unit 314 performs cell reselection according to the cell virtual set established by the second virtual set establishing unit 311 and the system information broadcast stored by the storage unit 313.
  • the terminal provided in the embodiment of the present invention can avoid interference of the terminal to the neighboring cell, and can speed up the cell reselection.
  • the disclosed systems, devices, and methods may be implemented in other ways.
  • 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 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 electrical, mechanical or otherwise.
  • the components displayed as units may or may not be physical units, i.e., may be located in one place, or may be distributed over multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention 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 soft. The form of the functional unit is implemented.
  • 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.
  • 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 invention.
  • 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 codes. .

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Abstract

本发明公开了一种发送数据的方法，在前向接入信道连接状态，直接或根据邻小区的信号度量值建立小区虚拟集，所述小区虚拟集中至少包括服务小区；监听所述小区虚拟集内非服务小区的公共相对授权信道，并读取所述公共相对授权信道中的指示信息；根据读取到的所述指示信息调整待发送数据的功率，以调整后的功率发送所述待发送数据。本发明实施例还公开了一种小区重选的方法，并提供相应的终端。本发明技术方案由于在前向接入信道连接状态，直接或根据邻小区的信号度量值建立小区虚拟集，可以降低对邻小区的干扰。

Description

发送数据的方法及终端 本申请要求于 2012 年 02 月 02 日提交中国专利局、 申请号为 201210023347.9、发明名称为"发送数据的方法及终端"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
本发明涉及通信技术领域， 具体涉及一种发送数据的方法及终端。 背景技术
在宽带码分多址（WCDMA, Wideband Code Division Multiple Access ) 系统中， 处于专用信道连接（Cell DCH, Cell Dedicated Channel )状态的终 端几乎一直处在软切换状态下， 软切换就是终端在从一个小区进入另一个 小区时， 先建立与新基站的通信， 直到接收到原基站信号低于一个门限值 时再切断与原基站的通信的切换方式， 处在软切换状态的终端， 同时和多 个基站或小区保持通信， 这些小区一并构成了该终端的激活集， 激活集内 的所有小区都是同频小区。 随着终端的移动， 它与各基站间的通信质量不 断发生变化， 为了保证终端接收信号的质量， 终端的激活集也要进行相应 的更新， 即将激活集中信号质量较差的小区从激活集中删除， 而将激活集 外信号较好的小区加入激活集。 激活集的维护， 需要 UE上报测量， RNC 根据测量结果进行维护， 常用的激活集维护事件有： （1 )一个小区信号质 量好到一定程度， 勇于加入激活集； （2 )—个小区信号质量差到一定程度， 从激活集中删除； （3 )激活集外一个小区质量好于激活集内一个小区质量， 当激活集达到预置数量时， 用激活集外的信号质量好的小区替换激活集内 信号质量差的小区。
在 Cell DCH状态， 激活集仅存在同频频点上， 异频频点上配置虚拟激 活集， 配置了异频虚拟激活集的终端会继承同频测量的激活集更新原则， 比如（1 ), ( 2 ), ( 3 )的更新原则， 在测量的异频频点上维护一个虚拟异频 的激活集,虚拟激活集测量事件触发时， UE 不向网络测上报测量结果， UE 内部会利用这些事件进行激活集的更新， 更新后的结果也不上报给网络测， 在进行异频事件判决的时候,釆用该虚拟激活集的综合质量和同频服务小区 质量进行比较,以进行切换判决。
在对现有技术的研究和实践过程中， 本发明的发明人发现， 在前向接 入信道连接状态（ Cell FACH, Cell Forward Access Channel ) , 终端不维护 激活集， 终端仅与服务小区保持连接， 这样终端在 Cell FACH态工作时， 无 法顾及到邻小区， 给部小区造成了干扰。 发明内容
本发明多个方面提供一种发送数据的方法、 小区重选的方法及终端， 可以在前向接入信道连接状态建立并使用小区虚拟集， 从而使终端在前向 接入信道连接状态工作时， 可以降低对邻小区的干扰。
一种发送数据的方法， 包括：
在前向接入信道连接状态， 直接或根据邻小区的信号度量值建立小区 虚拟集， 所述小区虚拟集中至少包括服务小区；
监听所述小区虚拟集内非服务小区的公共相对授权信道， 并读取所述 公共相对授权信道中的指示信息；
根据读取到的所述指示信息调整待发送数据的功率， 以调整后的功率 发送所述待发送数据。
一种小区重选的方法， 包括：
在前向接入信道连接状态， 直接或根据邻小区的信号度量值建立小区 虚拟集， 所述小区虚拟集中至少包括服务小区；
读取所述小区虚拟集内小区的系统信息广播， 并存储所述系统信息广 播；
根据所述小区虚拟集和存储的小区虚拟集内小区的系统信息广播进行 小区重选。
一种终端， 包括：
第一虚拟集建立单元， 用于在前向接入信道连接状态， 直接或根据邻 小区的信号度量值建立小区虚拟集；
监听单元， 用于监听所述第一虚拟集建立单元建立的小区虚拟集内非 服务小区的公共相对授权信道；
第一读取单元， 用于读取所述监听单元监听的公共相对授权信道中的 指示信息；
调整单元， 用于根据所述第一读取单元读取到的所述指示信息调整待 发送数据的功率；
发送单元， 用于以所述调整单元调整后的功率发送所述待发送数据。 一种终端， 包括：
第二虚拟集建立单元， 用于在前向接入信道连接状态， 直接或根据邻 小区的信号度量值建立小区虚拟集；
第二读取单元， 用于读取所述第二虚拟集建立单元建立的小区虚拟集 内小区的系统信息广播；
存储单元， 用于存储所述第二读取单元读取的所述系统信息广播； 重选单元， 用于根据所述第二虚拟集建立单元建立的小区虚拟集和存 储单元存储的系统信息广播进行小区重选。
上述多个方面描述的技术方案， 可以避免终端对邻小区的干扰。 附图说明
图 1是本发明实施例中发送数据的方法的一实施例示意图；
图 2是本发明实施例中发送小区重选的方法的一实施例示意图； 图 3是本发明实施例中终端的一实施例示意图；
图 4是本发明实施例中终端的另一实施例示意图；
图 5是本发明实施例中终端的另一实施例示意图；
图 6是本发明实施例中终端的另一实施例示意图。 具体实施方式
以下描述中， 为了说明而不是为了限定， 提出了诸如特定系统结构、 接口、 技术之类的具体细节， 以便透切理解本发明。 然而， 本领域的技术 人员应当清楚， 在没有这些具体细节的其它实施例中也可以实现本发明。 在其它情况中， 省略对众所周知的装置、 电路以及方法的详细说明， 以免 不必要的细节妨碍本发明的描述。
本文中描述的技术可用于各种通信系统， 例如当前 2G, 3G通信系统 和下一代通信系统，例如全球移动通信系统（ GSM, Global System for Mobile communications ),码分多址 ( CDMA, Code Division Multiple Access )系统, 时分多址（TDMA, Time Division Multiple Access ) 系统， 宽带码分多址 ( WCDMA, Wideband Code Division Multiple Access Wireless ), 频分多址 ( FDMA, Frequency Division Multiple Addressing ) 系统, 正交频分多址 ( OFDMA, Orthogonal Frequency-Division Multiple Access ) 系统, 单载波 FDMA ( SC-FDMA )系统，通用分组无线业务（ GPRS, General Packet Radio Service ) 系统， 长期演进（LTE, Long Term Evolution ) 系统， 以及其他此 类通信系统。
本文中结合用户设备和 /或基站和 /或基站控制器来描述各种方面。
用户设备， 指的是无线终端， 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， RAN, Radio Access Network )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。 例如， 个人通信业务 （PCS , Personal Communication Service ) 电话、 无绳电话、 会话发起协议 ( SIP )话机、 无 线本地环路 ( WLL , Wireless Local Loop )站、个人数字助理（ PDA, Personal Digital Assistant )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 )。
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 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 的其余部分可包括网际协议（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 （BTS , Base Transceiver Station ), 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 , evolutional Node B ),本发明并不限定。
基站控制器，可以是 GSM或 CDMA中的基站控制器（ BSC , base station controller ) ,也可以是 WCDMA中的无线网络控制器（ RNC , Radio Network Controller ), 本发明并不限定。
另外， 本文中术语"系统，，和"网络"在本文中常被可互换使用。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。 参阅图 1 , 为本发明一实施例提供的一种发送数据的方法流程示意图。 101、 终端在前向接入信道连接状态， 直接或根据邻小区的信号度量值 建立小区虚拟集。
终端在前向接入信道连接状态直接建立小区虚拟集是指： 终端检测到 服务小区和邻小区的信号后， 将所有测量到的小区都加入到小区虚拟集中， 小区虚拟集中至少包括服务小区。
信号度量值可以是信号质量、 信号强度、 小区对应的 S值或 R值， S值包 括信号强度 S值 Srxlev和信号质量 S值 Squal; R值的计算公式取决于是服务小 区还是部小区； 具体的为：
Srxlev=Qrxlevmeas-Qrxlevmin-Pcompensation;
其中， Qrxlevmeas为测量的当前服务小区接收功率， 指 P-CCPCH信道 的 RSCP值； Qrxlevmin为服务小区最小接收功率； 该参数从服务小区的系统 广播消息中读出， 一般终端读出后需做一定的算术转换； Pcompensation为 补偿值；
Squal=Qqualmeas-Qqualmin;
其中 Qqualmeas表示所测量到的小区的质量电平值； Qqualmin表示服务 小区最小所需的质量电平值；
Rs=Qmeans,s+Qhyst, s+Qoffmbms;
Rn= Qmeans,n+Qoffset,n+ Qoffmbms-TO nx(l-Ln);
其中 Rs表示服务小区的 R值， Rn表示邻小区的 R值， Qmeans,s表示服务 小区的测量值， Qmeans,n标识邻小区的测量值， Qhyst,s表示滞后量， Qoffset,n 表示服务小区与邻小区的偏移量， Qoffmbms表示偏移量。
终端在前向接入信道连接状态启动测量后， 会根据上述公式计算出 S 值与 R值； 实际上这都属于现有技术， 此处不做详细赘述。
因为服务小区是一定要加入小区虚拟集的， 所以不能考虑服务小区的 信号度量值， 当对加入小区虚拟集的小区设置预置门限时， 根据邻小区的 信号度量值建立小区虚拟集， 包括： 将邻小区的信号度量值与预置门限进 行比较， 将信号度量值大于预置门限的邻小区加入小区虚拟集。
在本发明的另一实施例中， 当没有设定预置门限， 又没有对加入虚拟 集的小区的数量进行限制时， 可以将终端测量到的所有小区都加入小区虚 在本发明的另一实施例中， 当对加入虚拟集的小区配置预置数量时， 并且配置的预置数量大于等于测量到的小区数时， 将测量到的所有小区都 加入到小区虚拟集。
在本发明的另一实施例中， 当所述小区虚拟集配置的预置数量小于测 量到的小区数时， 将邻小区按照所述信号度量值的大小进行排序； 将服务 小区和小于预置数量的信号度量值最大的邻小区加入到小区虚拟集； 如小 区虚拟集配置的预置数量是 5 , 当检测到有服务小区和 7个邻小区时， 那么 将邻小区按照信号度量值的大小进行排序， 将服务小区和 4个邻小区加入小 区虚拟集， 当然邻小区的数量可以是 4 , 也可以是 1、 2、 3。
本发明实施例提供的小区虚拟集是终端在前向接入信道连接状态（ Cell
FACH, Cell Forward Access Channel )建立的小区集合， 当不设定预置数量 和预置门限时， 本发明实施例提供的小区虚拟集是由终端检测到的所有小 区组成的集合； 当设定预置数量， 并且预置数量大于等于测量到的小区数 时， 本发明实施例提供的小区虚拟集是由终端检测到的所有小区组成的集 合； 当设定预置数量并且测量到的小区的数量大于预置门限时， 本发明实 施例提供的小区虚拟集是由服务小区和小于预置数量的信号度量值最大的 邻小区组成的集合； 当设定预置门限时， 本发明实施例提供的小区虚拟集 是由服务小区和信号度量值大于预置门限的邻小区组成的集合。 加入到小 区虚拟集的邻小区可以是服务小区的同频邻小区或服务小区的异频邻小 区， 或者异系统邻小区。
建立小区虚拟集后， 由于小区虚拟集内的小区的信号度量值可能随时 发生变化， 为了保持小区虚拟集的小区的信号度量值尽量最好， 就要对虚 拟集内的小区进行更新， 虚拟集内的小区更新有一定的更新规则， 更新规 则一般包括小区的添加、 删除或替换， 具体如下所述。
本发明的一个实施例中， 对加入小区虚拟集的小区设置有预置门限， 当小区虚拟集外的第一小区的信号度量值在预置时间内一直高于所述预置 门限时， 将所述第一小区加入所述小区虚拟集； 当所述虚拟集内的第二小 区在预置时间内一直低于所述预置门限时， 将所述低于预置门限的第二小 区从所述虚拟集内删除。
在本发明的另一实施例中， 对加入虚拟集的小区没有设置预置门限， 可以通过虚拟集内小区的加权平均值进行更新， 加权平均值的计算公式为：
T=W*S1+(1-W)*S2
T为加权平均值， W是加权参数， S1和 S2是虚拟集内两个小区的信号度 量值， 例如， S1表示服务小区信号质量， S2表示非服务小区信号质量平均 值， 如果 Sl=l表示门限仅受 S1信号的影响。
在本发明的另一实施例中， 对加入小区虚拟集的小区没有设置预置门 限时， 当虚拟集外的小区的信号度量值在预置时间内一直高于虚拟集内小 区加权平均值时， 将所述虚拟集外的小区加入所述小区虚拟集。
在本发明的另一实施例中， 当所述小区虚拟集内的小区在预置时间内 一直低于所述小区虚拟集内小区加权平均值时， 将所述低于预置门限的小 区从所述虚拟集内删除。
在本发明的另一实施例中， 当小区虚拟集达到预置数量时， 当所述小 区虚拟集中的小区达到预置数量时， 小区虚拟集外的第一小区信号度量值 在预置时间内一直高于小区虚拟集内的第二小区信号度量值， 用所述第一 小区替换所述虚拟集内的第二小区， 所述第二小区为虚拟集内信号度量值 最低的小区。
终端所使用的预置门限、 预置时间、 预置数量、 虚拟集内每个小区的 预置权重值等配置参数是无线网络控制器配置给终端的， 终端接收无线网 络控制器发送的配置参数。
102、 终端监听所述小区虚拟集内非服务小区的公共相对授权信道， 并 读取所述公共相对授权信道中的指示信息。
公共相对授权信道（ C-RGCH, Common Relative Grant Channel ) 为加 入到小区虚拟集的服务小区与所有非服务小区之间的公用信道， 非服务小 区受到干扰后可发送指示信息到公共相对授权信道中， 终端一直监听这条 公共相对授权信道， 就可以读取到公共相对授权信道中的指示信息。
103、 终端根据读取到的所述指示信息调整待发送数据的功率， 以调整 后的功率发送所述待发送数据。
终端读取到的所述指示信息是邻小区发送的， 一般为要求终端降低发 送功率的指示信息； 终端读取到公共相对授权信道中的指示信息后， 根据 指示信息的指示调整待发送数据的功率， 然后以调整后的功率发送所述待 发送数据， 这样可以有效避免对邻小区的干扰。
终端发送数据会有一个发射功率， 终端可以调整该发射功率， 当终端 在公共相对授权信道中读取到了降低发送数据功率的指示信息， 终端会根 据该指示信息将待发送数据的功率降低， 如果功率降低后还会读取到降低 发送数据功率的指示信息， 那么终端在保证待发送数据能够有效发送给接 收方的条件下， 再进一步降低发射功率。 以避免对邻小区造成干扰。
本发明实施例中， 在前向接入信道连接状态， 根据邻小区的信号度量 值建立小区虚拟集； 监听所述小区虚拟集内非服务小区的公共相对授权信 道， 并读取所述公共相对授权信道中的指示信息； 根据读取到的所述指示 信息调整待发送数据的功率， 以调整后的功率发送所述待发送数据。 与现 有技术相比， 本发明实施例提供的发送数据的方法， 在前向接入信道连接 状态， 监听邻小区的公共相对授权信道， 根据邻小区公共相对授权信道的 指示信息控制数据的发送， 可以避免终端对邻小区的干扰。 在本发明的另一实施例中， 当满足上报条件时， 终端上报所述虚拟集 给网络侧设备， 如无线网络控制器（RNC, Radio Network Controller ), 所 述上报条件包括如下至少之一：
A )终端发送任何消息给网络侧的同时； 比如， 终端发送测量报告小区 更新或者 UMTS 陆地无线接入网 （UTRAN, UMTS Terrestrial Radio Access Network )注册区域更新消息， 或者上行直传信令的时候， 终端发送的消息 携带终端在 FACH态的下去虚拟集信息。
B )终端收到网络侧的小区虚拟集上 ^艮请求； 所述小区虚拟集上 4艮请求 消息可以是无线资源控制协议（ RRC , Radio Resource Control ) 消息。
C ) 小区虚拟集内的任意一个小区的干扰水平达到规定的干扰水平值， 终端通过读取系统广播消息后发现服务小区干扰水平值或者邻区干扰水平 值， 规定的干扰水平值是一个阔值， 当服务小区干扰水平值或者邻区干扰 水平值超过该阔值时， 终端就会上报小区虚拟集给无线网络控制器。
D )预定义的上报条件， 该预定义的上报条件可以是： a )虚拟集中增 加了异系统或者异频小区； 或 b)周期性上报， 间隔一定时间上报一次等条 件。
当满足上述 A、 B、 C、 D中的任意一种情况时， 终端都上报小区虚拟集 给网络侧设备， 如无线网络控制器。
无线网络控制器（ RNC, Radio Network Controller )接收到小区虚拟集 后， 可以利用小区虚拟集作为在终端转入 Cell DCH状态时 RNC建立激活集 时的参考； 终端在 Cell DCH状态， 同时和多个小区保持通信， 这些同时与 终端保持通信的小区组成的集合称为激活集。 如 RNC接收到终端上报的小 区虚拟集后， 获知小区虚拟集中有 4个小区， 其中包括服务小区 A和 3个邻小 区^ C、 D; 如果 RNC决定让终端从 Cell FACH状态切换到 Cell DCH状态， 那么 RNC要为终端建立激活集， RNC会将小区虚拟集中的小区作为建立激 活集的小区供终端使用。 当终端离开 Cell FACH状态切换到 Cell DCH状态， 或终端在 Cell FACH 状态， 上行连接释放之后， 终端清除小区虚拟集。
实际上小区虚拟集上报也可以独立于发送数据的过程， 可以是终端在 Cell FACH状态建立小区虚拟集后， 就可以将小区虚拟集上报给网络侧设 备， 供网络侧设备决定让终端由前向接入信道状态转入专用信道状态的参 考。
参阅图 2, 为本发明另一实施例的一种小区重选的方法的流程示意图。 201、 终端在前向接入信道连接状态， 直接或根据邻小区的信号度量值 建立小区虚拟集。
终端在前向接入信道连接状态直接建立小区虚拟集是指： 终端检测到 服务小区和邻小区的信号后， 将所有测量到的小区都加入到小区虚拟集中， 小区虚拟集中至少包括服务小区。
信号度量值可以是信号质量、 信号强度、 小区对应的 S值或 R值， S值包 括信号强度 S值 Srxlev和信号质量 S值 Squal; R值的计算公式取决于是服务小 区还是部小区； 具体的为：
Srxlev=Qrxlevmeas-Qrxlevmin-Pcompensation;
其中， Qrxlevmeas为测量的当前服务小区接收功率， 指 P-CCPCH信道 的 RSCP值； Qrxlevmin为服务小区最小接收功率； 该参数从系统广播消息中 读出， 一般终端读出后需做一定的算术转换； Pcompensation为补偿值；
Squal=Qqualmeas-Qqualmin;
其中 Qqualmeas表示所测量到的小区的质量电平值； Qqualmin表示服务 小区最小所需的质量电平值；
Rs=Qmeans,s+Qhyst, s+Qoffmbms;
Rn= Qmeans,n+Qoffset,n+ Qoffmbms-TO nx(l-Ln);
其中 Rs表示服务小区的 R值， Rn表示邻小区的 R值， Qmeans,s表示服务 小区的测量值， Qmeans,n标识邻小区的测量值， Qhyst,s表示滞后量， Qoffset,n 表示服务小区与邻小区的偏移量， Qoffmbms表示偏移量。
终端在前向接入信道连接状态启动测量后， 会根据上述公式计算出 S 值与 R值； 实际上这都属于现有技术， 此处不做详细赘述。
因为服务小区是一定要加入小区虚拟集的， 所以不能考虑服务小区的 信号度量值， 当对加入小区虚拟集的小区设置预置门限时， 根据邻小区的 信号度量值建立小区虚拟集， 包括： 将邻小区的信号度量值与预置门限进 行比较， 将信号度量值大于预置门限的邻小区加入小区虚拟集。
在本发明的另一实施例中， 当没有设定预置门限， 又没有对加入虚拟 集的小区的数量进行限制时， 可以将终端测量到的所有小区都加入小区虚 拟集。
在本发明的另一实施例中， 当对加入虚拟集的小区配置预置数量时， 并且配置的预置数量大于等于测量到的小区数时， 将测量到的所有小区都 加入到小区虚拟集。
在本发明的另一实施例中， 当所述小区虚拟集配置的预置数量小于测 量到的小区数时， 将邻小区按照所述信号度量值的大小进行排序； 将服务 小区和小于预置数量的信号度量值最大的邻小区加入到小区虚拟集； 如小 区虚拟集配置的预置数量是 5 , 当检测到有服务小区和 7个邻小区时， 那么 将邻小区按照信号度量值的大小进行排序， 将服务小区和 4个邻小区加入小 区虚拟集， 当然邻小区的数量可以是 4 , 也可以是 1、 2、 3。
本发明实施例提供的小区虚拟集是终端在前向接入信道连接状态（ Cell FACH, Cell Forward Access Channel )建立的小区集合， 当不设定预置数量 和预置门限时， 本发明实施例提供的小区虚拟集是由终端检测到的所有小 区组成的集合； 当设定预置数量， 并且预置数量大于等于测量到的小区数 时， 本发明实施例提供的小区虚拟集是由终端检测到的所有小区组成的集 合； 当设定预置数量并且测量到的小区的数量大于预置门限时， 本发明实 施例提供的小区虚拟集是由服务小区和小于预置数量的信号度量值最大的 邻小区组成的集合； 当设定预置门限时， 本发明实施例提供的小区虚拟集 是由服务小区和信号度量值大于预置门限的邻小区组成的集合。 加入到小 区虚拟集的邻小区可以是服务小区的同频邻小区或服务小区的异频邻小 区， 或者异系统邻小区。
建立小区虚拟集后， 由于小区虚拟集内的小区的信号度量值可能随时 发生变化， 为了保持小区虚拟集的小区的信号度量值尽量最好， 就要对虚 拟集内的小区进行更新， 虚拟集内的小区更新有一定的更新规则， 更新规 则一般包括小区的添加、 删除或替换， 具体如下所述。
本发明的一个实施例中， 对加入小区虚拟集的小区设置有预置门限， 当小区虚拟集外的第一小区的信号度量值在预置时间内一直高于所述预置 门限时， 将所述第一小区加入所述小区虚拟集； 当所述虚拟集内的第二小 区在预置时间内一直低于所述预置门限时， 将所述低于预置门限的第二小 区从所述虚拟集内删除。
在本发明的另一实施例中， 对加入虚拟集的小区没有设置预置门限， 可以通过虚拟集内小区的加权平均值进行更新， 加权平均值的计算公式为：
T=W*S1+(1-W)*S2
T为加权平均值， W是加权参数， S1和 S2是虚拟集内两个小区的信号度 量值， 例如， S1表示服务小区信号质量， S2表示非服务小区信号质量平均 值， 如果 Sl=l表示门限仅受 S1信号的影响。
在本发明的另一实施例中， 对加入小区虚拟集的小区没有设置预置门 限时， 当虚拟集外的小区的信号度量值在预置时间内一直高于虚拟集内小 区加权平均值时， 将所述虚拟集外的小区加入所述小区虚拟集。
在本发明的另一实施例中， 当所述小区虚拟集内的小区在预置时间内 一直低于所述小区虚拟集内小区加权平均值时， 将所述低于预置门限的小 区从所述虚拟集内删除。
在本发明的另一实施例中， 当小区虚拟集达到预置数量时， 当所述小 区虚拟集中的小区达到预置数量时， 小区虚拟集外的第一小区信号度量值 在预置时间内一直高于小区虚拟集内的第二小区信号度量值， 用所述第一 小区替换所述虚拟集内的第二小区， 所述第二小区为虚拟集内信号度量值 最低的小区。
终端所使用的预置门限、 预置时间、 预置数量、 虚拟集内每个小区的 预置权重值等配置参数是无线网络控制器配置给终端的， 终端接收无线网 络控制器发送的配置参数。
202、 终端读取所述小区虚拟集内小区的系统信息广播， 并存储所述系 统信息广播。
系统信息广播会指示小区虚拟集内的哪些小区为禁止小区或预留小 区， 终端读取该系统信息广播后， 可将虚拟集内的禁止小区或预留小区移 除所述虚拟集， 或者为所述虚拟集内的禁止小区或预留小区设置禁止接入 标志。
因为系统信息广播是一直变化的， 所以要周期性读取所述系统信息广 播， 使存储的系统信息广播中与虚拟集中小区的最新广播消息保持一致。
203、 终端根据所述小区虚拟集和存储的小区虚拟集内小区的系统信息 广播进行小区重选。
终端进行小区重选的时候， 将虚拟集中小区作为重选目标小区的候选 小区， 才艮据前面所述的重选准则（S准则 R准则）重选到虚拟中的某个小区， 当所述系统信息广播指示所述虚拟集中有预留小区或禁止小区时， 根据所 述系统信息广播的指示在重选时排除预留小区或禁止小区。
在本发明的另一实施例中， 当小区虚拟集内有小区设置禁止接入标志 时， 在小区重选前要将这些设置有禁止接入标志的小区排除， 这些设置有 禁止接入标志的小区不会成为目标小区； 然后将剩余的小区按照所述重选 参数进行排序， 选择重选参数最大的邻小区作为目标小区， 并从服务小区 切换到目标小区。 本发明实施例提供的小区重选的方法， 在前向接入信道连接状态， 直 接或根据邻小区的信号度量值， 建立小区虚拟集； 读取所述小区虚拟集内 小区的系统信息广播， 并存储从所述系统信息广播； 根据根据所述小区虚 拟集和存储的小区虚拟集内小区的系统信息广播进行小区重选。 终端从服 务小区切换到目标小区后， 可以避免对邻小区的干扰。 而且可以加快小区 重选的速度。
在本发明的另一实施例中， 当满足上报条件时， 终端上报所述虚拟集 给网络侧设备， 如无线网络控制器（RNC, Radio Network Controller ), 所 述上报条件包括如下至少之一：
A )终端发送任何消息给网络侧的同时； 比如， 终端发送测量报告小区 更新或者 UMTS 陆地无线接入网 （UTRAN, UMTS Terrestrial Radio Access Network )注册区域更新消息， 或者上行直传信令的时候， 终端发送的消息 携带终端在 FACH态的下去虚拟集信息。
B )终端收到网络侧的小区虚拟集上 ^艮请求； 所述小区虚拟集上 4艮请求 消息可以是无线资源控制协议（ RRC , Radio Resource Control ) 消息。
C ) 小区虚拟集内的任意一个小区的干扰水平达到规定的干扰水平值， 终端通过读取系统广播消息后发现服务小区干扰水平值或者邻区干扰水平 值， 规定的干扰水平值是一个阔值， 当服务小区干扰水平值或者邻区干扰 水平值超过该阔值时， 终端就会上报小区虚拟集给无线网络控制器。
D )预定义的上报条件， 该预定义的上报条件可以是： a )虚拟集中增 加了异系统或者异频小区； 或 b)周期性上报， 间隔一定时间上报一次等条 件。
当满足上述 A、 B、 C、 D中的任意一种情况时， 终端都上报小区虚拟集 给网络侧设备， 如无线网络控制器。
无线网络控制器（ RNC, Radio Network Controller )接收到小区虚拟集 后， 可以利用小区虚拟集作为在终端转入 Cell DCH状态时 RNC建立激活集 时的参考； 终端在 Cell DCH状态， 同时和多个小区保持通信， 这些同时与 终端保持通信的小区组成的集合称为激活集。 如 RNC接收到终端上报的小 区虚拟集后， 获知小区虚拟集中有 4个小区， 其中包括服务小区 A和 3个邻小 区^ C、 D; 如果 RNC决定让终端从 Cell FACH状态切换到 Cell DCH状态， 那么 RNC要为终端建立激活集， RNC会将小区虚拟集中的小区作为建立激 活集的小区供终端使用。
当终端离开 Cell FACH状态切换到 Cell DCH状态， 或终端在 Cell FACH 状态， 上行连接释放之后， 终端清除小区虚拟集。
实际上小区虚拟集上 4艮也可以独立于小区重选的过程， 可以在终端在 Cell FACH状态建立小区虚拟集后， 就可以将小区虚拟集上报给网络侧， 供 网络侧作为由 Cell FACH状态切换到 Cell DCH状态参考。
参阅图 3 , 为本发明另一实施例的一种终端的结构示意图。 所述终端包 括： 第一虚拟集建立单元 301 , 监听单元 302, 第一读取单元 303、 调整单元 304和发送单元 305。
第一虚拟集建立单元 301 , 用于在前向接入信道连接状态， 直接或根据 邻小区的信号度量值建立小区虚拟集。
监听单元 302, 用于监听所述第一虚拟集建立单元 301建立的小区虚拟 集内非服务小区的公共相对授权信道。
第一读取单元 303 , 用于读取所述监听单元 302监听的公共相对授权信 道中的指示信息。
调整单元 304, 用于根据所述第一读取单元 303读取到的所述指示信息 调整待发送数据的功率。
发送单元 305， 用于以所述调整单元 304调整后的功率发送所述待发送 数据。
本发明实施例中， 第一虚拟集建立单元 301在前向接入信道连接状态， 直接或根据邻小区的信号度量值建立小区虚拟集； 监听单元 302监听所述第 一虚拟集建立单元 301建立的小区虚拟集内非服务小区的公共相对授权信 道； 第一读取单元 303读取所述监听单元 302监听的公共相对授权信道中的 指示信息； 调整单元 304根据所述第一读取单元 303读取到的所述指示信息 调整待发送数据的功率； 发送单元 305以所述调整单元 304调整后的功率发 送所述待发送数据。 与现有技术相比， 本发明实施例提供的终端， 可以避 免终端对邻小区的干扰。
上述图 3对应的实施例中：
所述第一虚拟集建立单元 301， 用于当所述小区虚拟集没有配置预置数 量， 或者所述小区虚拟集配置的预置数量大于等于测量到的小区数时， 将 所述测量到的所有小区加入到小区虚拟集。
所述第一虚拟集建立单元 301 , 用于将邻小区的信号度量值与预置门限 进行比较； 将服务小区和信号度量值大于预置门限的邻小区加入所述小区 虚拟集。
所述第一虚拟集建立单元 301， 用于当所述小区虚拟集配置的预置数量 小于测量到的小区数时， 将邻小区按照所述信号度量值的大小进行排序； 将服务小区和小于预置数量的信号度量值最大的邻小区加入到小区虚拟 参阅图 4 , 为本发明另一实施例的一种终端的结构示意图。 所述终端还 包括更新单元 306和上 ^艮单元 307。
更新单元 306 , 用于根据更新规则， 更新所述小区虚拟集。
所述更新单元 306 , 用于当所述小区虚拟集外的第一小区的信号度量值 在预置时间内一直高于所述预置门限， 或所述小区虚拟集外的第一小区的 信号度量值在预置时间内一直高于虚拟集内小区加权平均值时， 将所述第 一' J、区加入所述虚拟集； 或，
当所述小区虚拟集内的第二小区在预置时间内一直低于所述预置门 限， 或所述小区虚拟集内的第二小区在预置时间内一直低于虚拟集内小区 加权平均值时， 将所述低于预置门限的第二小区从所述虚拟集内删除。 所述更新单元 306 , 用于当所述小区虚拟集中的小区达到预置数量时， 小区虚拟集外的第一小区信号度量值在预置时间内一直高于小区虚拟集内 的第二小区信号度量值， 用所述第一小区替换所述虚拟集内的第二小区。
上报单元 307 ,用于当满足上报条件时，上报所述虚小区拟集给网络侧， 所述满足上报条件包括下述至少一个： 发送任意消息给网络侧， 收到网络 侧的虚拟集上报请求， 虚拟集内的任意一个小区的干扰水平达到规定的干 扰水平值和满足预定义的上报条件。
参阅图 5 , 为本发明另一实施例的一种终端的结构示意图。 所述终端还 包括接收单元 308、 状态转换单元 309和清空单元 310。
接收单元 308, 用于接收网络侧发送的状态转换指示。
状态转换单元 309 , 用于在所述接收单元 308接收到所述状态转换指示 后， 离开前向接入信道连接状态或释放上行连接。
清空单元 310 , 用于在状态转换单元 309完成状态转换后清空所述小区 虚拟集。
参阅图 6, 为本发明另一实施例的一种终端的结构示意图。 所述终端包 括：
第二虚拟集建立单元 311 , 用于在前向接入信道连接状态， 直接或根据 邻小区的信号度量值建立小区虚拟集。
第二读取单元 312 , 用于读取所述第二虚拟集建立单元 311建立的小区 虚拟集内小区的系统信息广播。
存储单元 313 , 用于存储所述第二读取单元 312读取的所述系统信息广 播。
重选单元 314 , 用于根据所述第二虚拟集建立单元 311建立的小区虚拟 集和存储单元 313存储的系统信息广播进行小区重选。
本发明实施例中， 第二虚拟集建立单元 311在前向接入信道连接状态， 直接或根据邻小区的信号度量值建立小区虚拟集； 第二读取单元 312读取所 述第二虚拟集建立单元 311建立的小区虚拟集内小区的系统信息广播； 存储 单元 313存储所述第二读取单元 312读取的所述系统信息广播； 重选单元 314 根据所述第二虚拟集建立单元 311建立的小区虚拟集和存储单元 313存储的 系统信息广播进行小区重选。 本发明实施例中提供的终端， 可以避免终端 对邻小区的干扰， 而且可以加快小区重选的速度。
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， 在本发明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， 本发明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 )执行本发明各个 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发明的技术方案， 而非对其限制； 尽管参照前述实施例对本发明进行了详细的说明， 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发明各实施例技术方案的精神和范围。

Claims

权利要求
1、 一种发送数据的方法， 其特征在于， 包括：
在前向接入信道连接状态， 直接或根据邻小区的信号度量值建立小区 虚拟集， 所述小区虚拟集中至少包括服务小区；
监听所述小区虚拟集内非服务小区的公共相对授权信道， 并读取所述 公共相对授权信道中的指示信息；
根据读取到的所述指示信息调整待发送数据的功率， 以调整后的功率 发送所述待发送数据。
2、 根据权利要求 1所述的方法， 其特征在于： 所述直接建立小区虚拟 集包括：
当所述小区虚拟集没有配置预置数量， 或者所述小区虚拟集配置的预 置数量大于等于测量到的小区数时， 将所述测量到的所有小区加入到小区 虚拟集。
3、 根据权利要求 1所述的方法， 其特征在于： 所述根据邻小区的信号 度量值建立小区虚拟集， 包括：
将邻小区的信号度量值与预置门限进行比较；
将服务小区和信号度量值大于预置门限的邻小区加入所述小区虚拟
4、 根据权利要求 1所述的方法， 其特征在于： 所述根据邻小区的信号 度量值建立小区虚拟集， 包括：
当所述小区虚拟集配置的预置数量小于测量到的小区数时， 将邻小区 按照所述信号度量值的大小进行排序；
将服务小区和小于预置数量的信号度量值最大的邻小区加入到小区虚 拟集。
5、 根据权利要求 3所述的方法， 其特征在于： 所述建立小区虚拟集后， 还包括： 根据更新规则， 更新所述小区虚拟集；
所述根据更新规则， 更新所述小区虚拟集包括：
当所述小区虚拟集外的第一小区的信号度量值在预置时间内一直高于 所述预置门限， 或所述小区虚拟集外的第一小区的信号度量值在预置时间 内一直高于虚拟集内小区加权平均值时， 将所述第一小区加入所述虚拟集； 或，
当所述小区虚拟集内的第二小区在预置时间内一直低于所述预置门 限， 或所述小区虚拟集内的第二小区在预置时间内一直低于虚拟集内小区 加权平均值时， 将所述低于预置门限的第二小区从所述虚拟集内删除。
6、 根据权利要求 2或 4所述的方法， 其特征在于： 所述建立小区虚拟集 后， 还包括：
根据更新规则， 更新所述小区虚拟集；
所述根据更新规则， 更新所述小区虚拟集包括：
当所述小区虚拟集中的小区达到预置数量时， 小区虚拟集外的第一小 区信号度量值在预置时间内一直高于小区虚拟集内的第二小区信号度量 值， 用所述第一小区替换所述虚拟集内的第二小区。
7、 根据权利要求 1~4任意一项所述的方法， 其特征在于： 还包括： 当满足上报条件时， 上报所述小区虚拟集给网络侧。
8、 根据权利要求 7所述的方法， 其特征在于： 所述满足上报条件包括 下述至少一个： 发送任意消息给网络侧， 收到网络侧的小区虚拟集上报请 求， 虚拟集内的任意一个小区的干扰水平达到规定的干扰水平值和满足预 定义的上报条件。
9、 根据权利要求 7所述的方法， 其特征在于： 还包括：
接收网络侧发送的状态转换指示， 离开前向接入信道连接状态或释放 上行连接；
清空所述小区虚拟集。
10、 一种小区重选的方法， 其特征在于， 包括：
在前向接入信道连接状态， 直接或根据邻小区的信号度量值建立小区 虚拟集， 所述小区虚拟集中至少包括服务小区；
读取所述小区虚拟集内小区的系统信息广播， 并存储所述系统信息广 播；
根据所述小区虚拟集和存储的小区虚拟集内小区的系统信息广播进行 小区重选。
11、 根据权利要求 10所述的方法， 其特征在于， 所述根据所述小区虚 拟集和存储的小区虚拟集内小区的系统信息广播进行小区重选， 包括： 将虚拟集中小区作为重选目标小区的候选小区， 当所述系统信息广播 指示所述虚拟集中有预留小区或禁止小区时， 根据所述系统信息广播的指 示在重选时排除预留小区或禁止小区。
12、 根据权利要求 10所述的方法， 其特征在于： 所述直接建立小区虚 拟集包括：
当所述小区虚拟集没有配置预置数量， 或者所述小区虚拟集配置的预 置数量大于等于测量到的小区数时， 将所述测量到的所有小区加入到小区 虚拟集。
13、 根据权利要求 10所述的方法， 其特征在于， 所述根据邻小区的信 号度量值建立小区虚拟集， 包括：
将邻小区的信号度量值与预置门限进行比较；
将服务小区和信号度量值大于预置门限的邻小区加入小区虚拟集。
14、 根据权利要求 11所述的方法， 其特征在于： 所述根据邻小区的信 号度量值建立小区虚拟集， 包括：
当所述小区虚拟集配置的预置数量小于测量到的小区数时， 将邻小区 按照所述信号度量值的大小进行排序；
将服务小区和小于预置数量的信号度量值最大的邻小区加入到小区虚 拟集。
15、 根据权利要求 13任意一项所述的方法， 其特征在于： 所述建立小 区虚拟集后， 还包括：
根据更新规则， 更新所述小区虚拟集；
所述根据更新规则， 更新所述小区虚拟集包括：
当所述小区虚拟集外的第一小区的信号度量值在预置时间内一直高于 所述预置门限， 或所述小区虚拟集外的第一小区的信号度量值在预置时间 内一直高于虚拟集内小区加权平均值时， 将所述第一小区加入所述虚拟集； 或，
当所述小区虚拟集内的第二小区在预置时间内一直低于所述预置门 限， 或所述小区虚拟集内的第二小区在预置时间内一直低于虚拟集内小区 加权平均值时， 将所述低于预置门限的第二小区从所述虚拟集内删除。
16、 根据权利要求 12或 14所述的方法， 其特征在于： 所述建立小区虚 拟集后， 还包括：
根据更新规则， 更新所述小区虚拟集；
所述根据更新规则， 更新所述小区虚拟集包括：
当所述小区虚拟集中的小区达到预置数量时， 小区虚拟集外的第一小 区信号度量值在预置时间内一直高于小区虚拟集内的第二小区信号度量 值， 用所述第一小区替换所述虚拟集内的第二小区。
17、 根据权利要求 10~14任意一项所述的方法， 其特征在于： 还包括： 定期更新存储的系统信息广播。
18、 根据权利要求 10~14任意一项所述的方法， 其特征在于： 还包括： 根据所述系统信息广播的指示， 将小区虚拟集内的禁止小区或预留小 区移除所述虚拟集， 或者为所述小区虚拟集内的禁止小区或预留小区设置 禁止接入标志。
19、 根据权利要求 10~14任意一项所述的方法， 其特征在于： 还包括： 当满足上报条件时， 上报所述小区虚拟集给网络侧。
20、 根据权利要求 19所述的方法， 其特征在于： 所述满足上报条件包 括下述至少一个： 发送任意消息给网络侧， 收到网络侧的小区虚拟集上报 请求， 虚拟集内的任意一个小区的干扰水平达到规定的干扰水平值和满足 预定义的上报条件。
21、 根据权利要求 19任意一项所述的方法， 其特征在于： 还包括 接收网络侧发送的状态转换指示， 离开前向接入信道连接状态或释放 上行连接；
清空所述小区虚拟集。
22、 一种终端， 其特征在于， 包括：
第一虚拟集建立单元， 用于在前向接入信道连接状态， 直接或根据邻 小区的信号度量值建立小区虚拟集；
监听单元， 用于监听所述第一虚拟集建立单元建立的小区虚拟集内非 服务小区的公共相对授权信道；
第一读取单元， 用于读取所述监听单元监听的公共相对授权信道中的 指示信息；
调整单元， 用于根据所述第一读取单元读取到的所述指示信息调整待 发送数据的功率；
发送单元， 用于以所述调整单元调整后的功率发送所述待发送数据。
23、 根据权利要求 22所述的终端， 其特征在于， 还包括：
更新单元， 用于根据更新规则， 更新所述第一虚拟集建立单元建立的 小区虚拟集。
24、 根据权利要求 22或 23所述的终端， 其特征在于， 还包括： 上报单元， 用于当满足上报条件时， 上报所述虚小区拟集给网络侧， 所述满足上报条件包括下述至少一个： 发送任意消息给网络侧， 收到网络 侧的虚拟集上报请求， 虚拟集内的任意一个小区的干扰水平达到规定的干 扰水平值和满足预定义的上报条件。
25、 根据权利要求 24所述的终端， 其特征在于， 还包括：
接收单元， 用于接收网络侧发送的状态转换指示；
状态转换单元， 用于在所述接收单元接收到所述状态转换指示后， 离 开前向接入信道连接状态或释放上行连接；
清空单元， 用于在状态转换单元完成状态转换后清空所述小区虚拟集。
26、 一种终端， 其特征在于， 包括：
第二虚拟集建立单元， 用于在前向接入信道连接状态， 直接或根据邻 小区的信号度量值建立小区虚拟集；
第二读取单元， 用于读取所述第二虚拟集建立单元建立的小区虚拟集 内小区的系统信息广播；
存储单元， 用于存储所述第二读取单元读取的所述系统信息广播； 重选单元， 用于根据所述第二虚拟集建立单元建立的小区虚拟集和存 储单元存储的系统信息广播进行小区重选。
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