WO2013082950A1 - 一种定时参考小区的去激活管理方法和设备 - Google Patents

一种定时参考小区的去激活管理方法和设备 Download PDF

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Publication number
WO2013082950A1
WO2013082950A1 PCT/CN2012/079842 CN2012079842W WO2013082950A1 WO 2013082950 A1 WO2013082950 A1 WO 2013082950A1 CN 2012079842 W CN2012079842 W CN 2012079842W WO 2013082950 A1 WO2013082950 A1 WO 2013082950A1
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Prior art keywords
group
cell
timing reference
reference cell
base station
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PCT/CN2012/079842
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English (en)
French (fr)
Inventor
赵亚利
许芳丽
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电信科学技术研究院
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Publication of WO2013082950A1 publication Critical patent/WO2013082950A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/02Arrangements for optimising operational condition

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a deactivation management method and device for a timing reference cell. Background technique
  • the LTE-A (LTE-Advanced, Advanced LTE) system requires a higher peak rate than the LTE (Long Term Evolution) system, and the LTE-A system requires compatibility with the LTE system.
  • CA Carrier Aggregation
  • the CA technology means that the terminal can simultaneously aggregate one or more cells, and can work simultaneously on these cells; the number of cells aggregated by the terminal is configured by the base station according to the service requirements of the terminal; the cells configured for one terminal can be classified into PCell (Primary Cell) , primary cell) and SCdl (secondary cell).
  • a terminal has only one cell as a PCell, and the terminal establishes an RRC (Radio Resource Control) connection with the base station on the PCell, and the PCell is responsible for transmitting the uplink control information of all carriers of the terminal.
  • the SCdl is used as the resource to transmit the service data of the user, and the SCell configured by the base station is deactivated by default, that is, the uplink/downlink data transmission cannot be performed. If you need to perform uplink/downlink data transmission, you need to activate these SCdl first.
  • the activation/deactivation mechanism is introduced in order to enable the terminal to save power.
  • the activation/deactivation in the LTE-A system is performed for a single cell.
  • the specific implementation is explicit or implicit. Mode; It should be noted that the implicit method only applies to the deactivation operation.
  • Explicit activation/deactivation mechanism that is, the base station controls the activation state of the aggregation cell of the terminal by sending a MAC (Media Access Control) (Control Element) (as shown in Figure 1). / Deactivate the MAC CE format.
  • the length of the MAC CE is 8 bits, and each bit corresponds to one cell. The rightmost bit corresponds to PCdl. Since PCdl is not deactivated, the position is R.
  • the other bits correspond to one SCdl. That is, Ci corresponds to the SCdl numbered i, when Ci takes " ⁇ , it means that the SCdl is activated, and when Ci takes "0", it means that the SCell is deactivated.
  • Implicit deactivation mechanism which is a way of implicit deactivation by introducing a deactivation timer.
  • the deactivation timer is configured based on the terminal and is maintained based on the cell. If the base station does not configure the deactivation timer, the deactivation timer length is infinite by default.
  • the maintenance mode of the deactivation timer includes: when the terminal receives the activation signaling for a certain cell, starts/restarts the deactivation timer corresponding to the cell; and during the operation of the deactivation timer, once the cell is received, The scheduling signaling of the uplink or downlink data transmission restarts the deactivation timer of the cell.
  • the scheduling signaling for the uplink or downlink data transmission of the cell passes the PDCCH (Physical Control Channel).
  • PDCCH Physical Control Channel
  • the terminal needs to adjust the uplink transmission time, and the adjustment amount is
  • a terminal has only one uplink carrier, so only one uplink TA needs to be maintained.
  • the number of uplink carriers aggregated by the terminal may be more than one, so to ensure different uplink carrier transmissions.
  • the data can arrive at the base station at the same time, and it is necessary to consider different uplinks using different uplinks, that is, multiple TAs.
  • the multi-TA scenario to be considered includes: The uplink carriers aggregated by the terminal belong to different bands (bands); the data transmitted on the uplink carriers aggregated by the terminal arrives at different nodes passing through the base station, and some of them are relayed, and some do not pass.
  • the cells that use the same or approximate uplink TA may be divided into a group, which is called a TA group, and the TA of each cell is maintained based on the TA group;
  • the initial TA of each TA group is obtained by random access in a certain cell in the TA group.
  • the downlink carrier corresponding to the cell that initiates random access in the TA group will be used as the subsequent uplink transmission of all cells in the TA group.
  • the timing reference that is, the cell that initiates random access is a timing reference cell.
  • the timing reference cell If there is no data transmission requirement on the SCdl as the timing reference cell, the timing reference cell will be deactivated; if other cells belonging to the same TA group have uplink data transmission requirements at this time, the timing reference cell is deactivated, Obtaining the downlink timing of the timing reference cell accurately, the other cells in the TA group with the reference cell as the timing cannot accurately perform the uplink data transmission. Summary of the invention
  • the embodiment of the invention provides a deactivation management method and device for a timing reference cell, To ensure that the timing reference cell is not deactivated.
  • an embodiment of the present invention provides a deactivation management method for a timing reference cell, including: performing, by a terminal device, that a timing reference cell in a TA group is a cell with the longest activation time in the TA group. deal with.
  • the embodiment of the present invention provides a deactivation management method for a timing reference cell, including: performing, by the base station device, a timing advance cell in which the timing reference cell in the TA group is the cell with the longest activation time in the TA group.
  • the embodiment of the present invention provides a terminal device, including: a processing module, configured to perform a process of making a timing reference cell in a TA group that is the longest activation time in the TA group.
  • the embodiment of the present invention provides a base station device, including: a processing module, configured to perform a process of making a timing reference cell in a TA group that is the longest activation time in the TA group.
  • the embodiment of the present invention has at least the following advantages: It can be ensured that if any cell in the TA group has uplink data transmission requirements, the timing reference cell in the TA group will not be deactivated, which can ensure The downlink timing of the timing reference cell is accurately obtained, thereby ensuring that the uplink transmission can reach the base station device at the time desired by the base station device.
  • FIG. 1 is a schematic diagram of a format of activating/deactivating a MAC CE in the prior art
  • FIG. 2A and FIG. 2B are schematic diagrams showing a flow of a deactivation management method of a timing reference cell according to Embodiment 1 of the present invention
  • 3 is a schematic structural diagram of a base station device according to Embodiment 6 of the present invention
  • FIG. 4 is a schematic structural diagram of a terminal device according to Embodiment 7 of the present invention.
  • the downlink carrier of the cell that initiates random access in the TA group is used as a timing reference for uplink transmission of all cells in the TA group, so as long as any If a cell has an uplink data transmission requirement, the timing reference cell (ie, the cell that initiates random access in the TA group) cannot be deactivated.
  • the PCdl as the timing reference cell is directly active, so there is no need to consider introducing a special mechanism; but for the TA group composed of all SCdls, if there is no data transmission requirement on the SCdl as the timing reference, then SCdl may be deactivated, and other cells belonging to the same TA group may have uplink data transmission requirements. Therefore, it is necessary to provide a method for avoiding deactivation of the timing reference cell.
  • the first embodiment of the present invention provides a deactivation management method for a timing reference cell (which may also be referred to as a timing reference carrier, where a timing reference cell is taken as an example), and the terminal device performs a timing reference cell in the TA group.
  • a timing reference cell which may also be referred to as a timing reference carrier, where a timing reference cell is taken as an example
  • the terminal device performs a timing reference cell in the TA group.
  • the timing reference cell in the TA group is prevented from being deactivated.
  • FIG. 2A and FIG. 2B respectively, a preferred processing flow of the base station device side and A preferred processing flow on the terminal device side.
  • the processing method on the device side of the base station includes the following steps: Step 201A: The base station device determines that the terminal device needs to transmit uplink data in a cell in the TA group.
  • the base station device may determine, according to the scheduling situation of the scheduler and/or the HARQ (Hybrid Auto Repeat Request) feedback condition, that the terminal device needs to transmit uplink data in the TA group.
  • HARQ Hybrid Auto Repeat Request
  • Step 202A The base station apparatus performs a process of making the timing reference cell in the TA group the cell with the longest activation time in the TA group.
  • the base station device determines that the terminal device needs to transmit uplink data in the TA group, the base station device needs to perform related processing, so that the timing reference cell in the TA group is the cell with the longest activation time in the TA group.
  • the processing method on the terminal device side includes the following steps: Step 201B: The terminal device determines that a cell needs to transmit uplink data in the TA group. Step 202B: The terminal device performs a process of making the timing reference cell in the TA group the cell with the longest activation time in the TA group.
  • the terminal device determines that there is a cell in the TA group that needs to transmit uplink data, the terminal device needs to perform related processing, so that the timing reference cell in the TA group is the cell with the longest activation time in the TA group.
  • the base station device performs the process of making the timing reference cell in the TA group the cell with the longest activation time in the TA group, including: the base station device determines that it does not deactivate the timing reference cell in the TA group by using an explicit deactivation mechanism, so that the TA The timing reference cell in the group is the cell with the longest activation time in the TA group; or, when the base station device is in the active state in any of the non-timed reference cells in the TA group, the base station device does not send the display to the timing reference cell in the TA group.
  • Deactivation signaling is such that the timing reference cell within the TA group is the cell with the longest activation time in the TA group.
  • the timing reference cell in the TA group needs to be reconfigured first, and the timing reference cell reconfiguration mode can be triggered by the base station sending the PDCCH order (command) Other cells in the TA group initiate random access implementation.
  • the processing by the terminal device to enable the timing reference cell in the TA group to be the cell with the longest activation time in the TA group includes: after the terminal device receives the explicit deactivation signaling for the TA group, if the signaling indication is explicitly deactivated Deactivating the timing reference cell, ignoring the explicit deactivation signaling, so that the timing reference cell in the TA group is the cell with the longest activation time in the TA group; or, if the explicit deactivation signaling indicates any one in the TA group When the non-timing reference cell is in an active state, the reserved timing reference cell is also in an active state, so that the timing reference cell in the TA group is the cell with the longest activation time in the TA group.
  • Timer 2 In order to prevent the timing reference cell from being implicitly deactivated, the timing reference cell can be implicitly deactivated by the scheduling of the base station device.
  • the processing performed by the base station device to enable the timing reference cell in the TA group to be the cell with the longest activation time in the TA group includes: the base station device in the TA group before the deactivation timer of the timing reference cell in the TA group times out Sending PDCCH scheduling signaling on the reference reference cell or transmitting PDCCH scheduling signaling for the timing reference cell in the TA group, The transmitting terminal device restarts the deactivation timer of the timing reference cell, so that the timing reference cell in the TA group is the cell with the longest activation time in the TA group.
  • the base station device when the base station device determines that the terminal device has an uplink data transmission requirement in a certain TA group, the base station device needs to ensure that the timing reference cell in the TA group is the cell with the longest activation time in the TA group. That is, the base station device needs to ensure that at least one PDCCH scheduling signaling for the uplink or downlink is sent to the timing reference cell or the timing reference cell before the deactivation timer of the timing reference cell times out.
  • the processing performed by the terminal device to enable the timing reference cell in the TA group to be the cell with the longest activation time in the TA group includes: the terminal device receives the base station device before the timeout period of the timing reference cell in the TA group expires
  • the timing reference cell is sent to the PDCCH scheduling signaling sent by the cell or the PDCCH scheduling signaling sent by the base station device to the timing reference cell is restarted, and then the deactivation timer of the timing reference cell is restarted, so that the timing reference cell in the TA group is in the TA group.
  • the cell with the longest activation time includes: the terminal device receives the base station device before the timeout period of the timing reference cell in the TA group expires
  • the timing reference cell is sent to the PDCCH scheduling signaling sent by the cell or the PDCCH scheduling signaling sent by the base station device to the timing reference cell is restarted, and then the deactivation timer of the timing reference cell is restarted, so that the timing reference cell in the TA group
  • the implicit reference cell may be implicitly deactivated by disabling the implicit deactivation mechanism for the timing reference cell in the TA group, and the timing reference cell may be disabled by displaying the signaling configuration. Implicit deactivation mechanism, then:
  • the base station device performs a process of making the timing reference cell in the TA group the cell with the longest activation time in the TA group, including: the base station device determines not to configure the deactivation timing for the terminal device, or the TA group, or the timing reference cell in the TA group.
  • the length of the device is such that the timing reference cell in the TA group is the cell with the longest activation time in the TA group; or, when the base station device determines that the terminal device has uplink data transmission requirements in the TA group, if the terminal device or the TA group or the TA
  • the timing reference cell in the group is configured with a deactivation timer, and the deactivation timer of the terminal device or the deactivation timer of the TA group is performed through RRC signaling or MAC signaling. Or the deactivation timer of the timing reference cell in the TA group is deconfigured so that the timing reference cell in the TA group is the cell with the longest activation time in the TA group.
  • the terminal device performs a process of making the timing reference cell in the TA group the cell with the longest activation time in the TA group, including: configuring the deactivation timing in the base station device not in the terminal device, or in the TA group, or the timing reference cell in the TA group.
  • the deactivation timer of the terminal device, or the deactivation timer of the TA group, or the deactivation timer of the timing reference cell in the TA group is performed by RRC signaling or MAC signaling.
  • the deactivation timer of the timing reference cell in the default TA group of the terminal device is infinite (that is, the value is infinity), so that the timing reference cell in the TA group is the cell with the longest activation time in the TA group.
  • the length of the deactivation timer can be based on the configuration of the terminal device, and can also be considered based on the TA group or the cell configuration.
  • the implicit deactivation mechanism may be disabled by the timing reference cell in the TA group to prevent the timing reference cell from being implicitly deactivated, and the random access procedure may be initiated on the cell. Automatically stop the implicit deactivation timer on the cell, Bay ij:
  • the processing performed by the base station device to enable the timing reference cell in the TA group to be the cell with the longest activation time in the TA group includes: when the base station device sends the PDCCH order to the terminal device to trigger a cell in the TA group to initiate random access (the A certain cell is a timing reference cell, and the base station device stops the deactivation timer of the random access initiating cell, so that the timing reference cell in the TA group is the cell with the longest activation time in the TA group.
  • the base station device restarts the random access initiation cell.
  • the processing performed by the terminal device to enable the timing reference cell in the TA group to be the cell with the longest activation time in the TA group includes: receiving, by the terminal device, a PDCCH order of a cell initiated by the base station device to initiate random access in the TA group
  • the terminal device stops the deactivation timer of the random access initiating cell, so that the timing reference cell in the TA group is the cell with the longest activation time in the TA group.
  • the terminal device restarts the random access.
  • the deactivation timer of the initiating cell is a certain cell in the TA group.
  • Timer 5 In order to prevent the timing reference cell from being implicitly deactivated, the timing reference cell may be implicitly deactivated by restarting the deactivation timer on the reference cell.
  • the processing performed by the base station device to enable the timing reference cell in the TA group to be the cell with the longest activation time in the TA group includes: the base station device sends PDCCH scheduling signaling on any cell in the TA group of the terminal device or sends the PDCCH scheduling signaling to the terminal device. After the PDCCH scheduling signaling is performed on any one of the cells in the TA group, the base station device restarts the cell, its scheduling cell (cross-carrier scheduling), and the deactivation timer on the timing reference cell in the TA group corresponding to the cell and its scheduling cell.
  • the timing reference cell in the TA group is the cell with the longest activation time in the TA group.
  • the process of the terminal device performing the cell with the longest activation time in the TA group in the TA group includes: receiving, by the terminal device, the PDCCH scheduling signaling or receiving sent by the base station device on a certain cell in the TA group.
  • the deactivation timer on the cell is such that the timing reference cell in the TA group is the cell with the longest activation time in the TA group.
  • the deactivation timer needs to be stopped when it receives the PDCCH order.
  • the terminal device may restart the deactivation timer corresponding to the cell.
  • the embodiments of the present invention are described in detail below in conjunction with specific application scenarios.
  • the application scenario is as follows: Assume that there are three cells that can be aggregated by the terminal device, namely Cdll, Cell2, and Cell3, where Celll belongs to a TA group (denoted as TAG1), and Cell2 and Cell3 belong to a TA group (recorded as TAG2).
  • TAG1 TA group
  • TAG2 TA group
  • TAG2 and Cell3 belong to a TA group
  • the second embodiment of the present invention provides a deactivation management method for a timing reference cell, so as to ensure that the timing reference cell is not deactivated by scheduling, the method includes the following steps:
  • Step 1 Assume that the terminal device first establishes an RRC connection with the base station device on Celll, and Celll is the PCell of the terminal device.
  • Step 2 As the data transmission requirements of the terminal device increase, the base station device adds Cell2 and Cell3 to the terminal device.
  • Step 3 Since Cdl2 and Cdl3 and Celll do not belong to a TA group, in order to establish uplink synchronization on Cdl2 and Cdl3, the base station device needs to enable the terminal device to initiate random access on Cell2 or Cdl3, and specifically select which cell depends on the base station device. For a specific implementation, it is assumed that the base station device selects to send a PDCCH order for Cell3, and triggers the terminal device to initiate random access on Cell3, that is, Cell3 will serve as a downlink timing reference cell used for subsequent uplink transmission of all cells in TAG2.
  • Step 4 As the data volume of the terminal device changes, the base station device may determine whether there is an uplink data transmission requirement in the TA group according to the scheduling situation of the scheduler and/or the reception condition of the uplink transmission in the TA group; if there is no data transmission on the Cdl3 Demand, but there is on Cell2
  • the base station device needs to ensure that the timing reference cell or the PDCCH of the timing reference cell is successfully succeeded before the deactivation timer of the timing reference cell expires.
  • An uplink or downlink scheduling signaling is sent; thus, it can be ensured that when any one of the cells in the TA group has uplink data transmission, Cell3, which is a timing reference, is in an active state.
  • Step 5 Optionally, if the base station device determines, according to the received scheduling signaling and/or the HARQ feedback information, that there is no uplink data transmission requirement in the TA group, the base station device may choose not to send the scheduling information for the timing reference cell.
  • the scheduling signaling is sent or not on the PDCCH of the timing reference cell, and the timing reference cell may be explicitly or implicitly deactivated.
  • the third embodiment of the present invention provides a deactivation management method for a timing reference cell to ensure that it is in an active state by disabling the implicit deactivation mechanism for the timing reference cell.
  • the method includes the following steps:
  • Step 1 Assume that the terminal device first establishes an RRC connection with the base station device on the Cdll, and the Cdll is the PCell of the terminal device.
  • Step 2 As the data transmission requirements of the terminal device increase, the base station device adds Cell2 and Cell3 to the terminal device.
  • Step 3 The base station device sends RRC reconfiguration signaling to the terminal device, where the deactivation timer is deconfigured in the reconfiguration signaling. This step may also be in the RRC connection reconfiguration process after the terminal device establishes an RRC connection with the base station device in step 1. Executed in.
  • Step 4 Since Cdl2 and Cdl3 and Celll do not belong to a TA group, in order to establish uplink synchronization on Cdl2 and Cdl3, the base station device needs to enable the terminal device to initiate random access on Cell2 or Cdl3, and specifically select which cell depends on the base station device.
  • the specific implementation if the base station device chooses to send the PDCCH order for Cell3, triggers The terminal device initiates random access on Cell3, that is, Cell3 will serve as a downlink timing reference cell used for subsequent uplink transmission of all cells in TAG2.
  • Step 5 As the data volume of the terminal device changes, the base station device may determine, according to the scheduling situation of the scheduler and/or the receiving condition of the uplink transmission in the TA group, whether there is an uplink data transmission requirement in the TA group; if there is no data transmission on the Cdl3 Demand, but there is data transmission requirement on Cell2 (that is, there is uplink data transmission requirement on any cell in the TA group), in order to ensure that the timing reference cell Cdl3 is still active, the base station device cannot send an explicit deactivation signal for Cell3. Therefore, at this time, the implicit deactivation timer on Cdl3 takes the value of infinity, so it is not implicitly deactivated, so that Cell3 will not be deactivated when there is uplink data transmission demand in its home TA group. .
  • Step 6 Optionally, if the base station device determines, according to the received scheduling signaling and/or the HARQ feedback information, that there is no uplink data transmission requirement in the TA group, the base station device may send explicit deactivation signaling to the Cdl3 or The reconfiguration deactivation timer length is used to explicitly or implicitly deactivate the timing reference cell.
  • the fourth embodiment of the present invention provides a deactivation management method for a timing reference cell to ensure that it is in an active state by disabling the implicit deactivation mechanism for the timing reference cell.
  • the method includes the following steps:
  • Step 1 Assume that the terminal device first establishes an RRC connection with the base station device on the Cdll, and the Cdll is the PCell of the terminal device.
  • Step 2 As the data transmission requirements of the terminal device increase, the base station device adds Cell2 and Cell3 to the terminal device.
  • Step 3 Since Cdl2 and Cdl3 and Celll do not belong to a TA group, in order to establish uplink synchronization on Cdl2 and Cdl3, the base station device needs to enable the terminal device to initiate random access on Cell2 or Cdl3, and specifically select which cell depends on the base station device. With for example, the base station device selects to send a PDCCH order for Cell3, and triggers the terminal device to initiate random access on Cell3, that is, Cell3 will serve as a downlink timing reference cell used for subsequent uplink transmission of all cells in TAG2.
  • Step 4 Once the terminal device receives the PDCCH order for Cell3, if the deactivation timer on the cell is in the running state, the deactivation timer is stopped.
  • Step 5 As the data volume of the terminal device changes, the base station device may determine, according to the scheduling situation of the scheduler and/or the receiving condition of the uplink transmission in the TA group, whether there is an uplink data transmission requirement in the TA group; if there is no data transmission on the Cdl3 Demand, but there is data transmission requirement on Cell2 (that is, there is uplink data transmission requirement on any cell in the TA group), in order to ensure that the timing reference cell Cdl3 is still active, the base station device cannot send an explicit deactivation signal for Cell3.
  • the implicit deactivation timer on Cdl3 is not running at this time, so it will not be implicitly deactivated, so that Cdl3 will not be deactivated when there is uplink data transmission demand in its home TA group.
  • the base station device also needs to use the same maintenance mode for the deactivation timer of each cell in the TA group.
  • Step 6 Optionally, if the terminal device determines, according to the received scheduling signaling and/or the HARQ feedback information, that there is no uplink data transmission requirement in the TA group, the terminal device may choose to restart the deactivation timer on the Cdl3, according to The deactivation timer implicitly deactivates the timing reference cell or explicitly deactivates the cell according to explicit deactivation signaling sent by the base station device.
  • the fifth embodiment of the present invention provides a deactivation management method for a timing reference cell, so that the timing reference cell is activated by using a reasonable maintenance mode for the deactivation timer, and the method includes the following steps:
  • Step 1 Assume that the terminal device first establishes an RRC connection with the base station device on the Cdll, and the Cdll is the PCell of the terminal device.
  • Step 2 As the data transmission requirement of the terminal device increases, the base station device adds Cell2 and Cell3 to the terminal device.
  • Step 3 Since Cdl2 and Cdl3 and Celll do not belong to a TA group, in order to establish uplink synchronization on Cdl2 and Cdl3, the base station device needs to enable the terminal device to initiate random access on Cell2 or Cdl3, and specifically select which cell depends on the base station device. For a specific implementation, it is assumed that the base station device selects to send a PDCCH order for Cell3, and triggers the terminal device to initiate random access on Cell3, that is, Cell3 will serve as a downlink timing reference cell used for subsequent uplink transmission of all cells in TAG2.
  • Step 4 Once the terminal device receives the PDCCH order for Cell3, the UE's terminal device stops the deactivation timer on the cell; after the terminal device receives the scheduling signaling for any one of the cells in the TA group again, Then restart the deactivation timer on Cdl3.
  • Step 5 As the data volume of the terminal device changes, the base station device may determine, according to the scheduling situation of the scheduler and/or the receiving condition of the uplink transmission in the TA group, whether there is an uplink data transmission requirement in the TA group; if there is no data transmission on the Cdl3 Demand, but there is data transmission requirement on Cell2 (that is, there is uplink data transmission requirement on any cell in the TA group), in order to ensure that the timing reference cell Cdl3 is still active, as long as the terminal device receives any one of the TA groups.
  • the scheduling signaling of the cell when starting the deactivation timer on the cell and its scheduling cell (cross-carrier scheduling only), also needs to restart the deactivation timer on Cdl3, thereby ensuring that Cell3 is at its home.
  • the TA group will not be deactivated when it has uplink data transmission requirements.
  • the restart of the deactivation timer may also consider the HARQ feedback information. For example, when the feedback information is NACK, the cell that receives the NACK feedback, its scheduling cell, and the deactivation timer of the restart timing reference cell are also required to be restarted. Of course, the deactivation timer of each cell in the TA group on the base station device side is also performed in the same manner. Protection.
  • Step 6 Optionally, if the terminal device determines, according to the received scheduling signaling and/or the HARQ feedback information, that there is no uplink data transmission requirement in the TA group, the timing reference cell Cdl3 in the TA group may be explicitly or implicitly Deactivated.
  • the embodiment of the present invention further provides a terminal device.
  • the terminal device includes:
  • the processing module 11 is configured to perform a process of making the timing reference cell in the TA group in the TA group the cell with the longest activation time in the TA group.
  • the terminal device further includes: a determining module 12, configured to determine, by the terminal device, that the cell in the TA group needs to transmit uplink data;
  • the processing module 11 is specifically configured to: when a cell in the TA group needs to transmit uplink data, perform a process of making a timing reference cell in the TA group the cell with the longest activation time in the TA group.
  • the processing module 11 is specifically configured to: after receiving the explicit deactivation signaling for the TA group, if the explicit deactivation signaling indicates that the timing reference cell is deactivated, the explicit mode is ignored. Deactivating signaling such that the timing reference cell within the TA group is the cell with the longest activation time in the TA group; or if the explicit deactivation signaling indicates any non-timing within the TA group When the reference cell is in an active state, the timing reference cell is kept in an active state, so that the timing reference cell in the TA group is the cell with the longest activation time in the TA group.
  • the processing module 11 is specifically configured to: before receiving a deactivation timer of a timing reference cell in the TA group, if receiving a physical layer control channel PDCCH scheduling signal sent by the base station device on the timing reference cell Or receiving or receiving the PDCCH scheduling signaling sent by the base station device for the timing reference cell, restarting the timing parameter
  • the deactivation timer of the cell is tested such that the timing reference cell in the TA group is the cell with the longest activation time in the TA group.
  • the processing module 11 is specifically configured to: when the base station device is not configured as a terminal device, or the TA group, or a timing reference cell in the TA group, to deactivate a timer length, or in the base station device Performing, by radio resource control RRC signaling or media access control MAC signaling, a deactivation timer of the terminal device, or a deactivation timer of the TA group, or a deactivation timer of the timing reference cell in the TA group
  • the deactivation timer of the timing reference cell in the TA group is infinite, so that the timing reference cell in the TA group is the cell with the longest activation time in the TA group.
  • the processing module 11 is configured to stop the deactivation timing of the random access initiating cell when receiving a PDCCH order order triggered by the base station device to trigger a random access in a cell in the TA group. So that the timing reference cell in the TA group is the cell with the longest activation time in the TA group.
  • the processing module 11 is further configured to: after the random access initiated by a cell in the TA group ends, or receive another cell in the TA group triggered by the base station device to initiate random access When the PDCCH order is used, the deactivation timer of the random access initiating cell is restarted.
  • the processing module 11 is specifically configured to: when receiving the PDCCH scheduling signaling sent by the base station device on a certain cell in the TA group, or receiving the PDCCH scheduling signaling sent by the base station device for the TA group
  • the PDCCH scheduling signaling of the cell restarts the deactivation timer on the certain cell, its scheduling cell, and the timing reference cell in the TA group corresponding to the certain cell and its scheduling cell, so that the TA group
  • the timing reference cell within is the cell with the longest activation time in the TA group.
  • modules of the device of the present invention may be integrated or integrated.
  • the above modules can be combined into one module, or can be further split into multiple sub-modules.
  • Example 7
  • the embodiment of the present invention further provides a base station device.
  • the base station device includes:
  • the processing module 21 is configured to perform a process of making the timing reference cell in the TA group of the timing advancement a cell with the longest activation time in the TA group.
  • the base station device further includes: a determining module 22, configured to determine, by the terminal device, that the cell in the TA group needs to transmit uplink data;
  • the processing module 21 is specifically configured to: when determining that the terminal device needs to transmit uplink data in the TA group, perform processing of making the timing reference cell in the TA group the cell with the longest activation time in the TA group. .
  • the processing module 21 is specifically configured to determine that the timing reference cell in the TA group is not activated by the explicit deactivation mechanism, so that the timing reference cell in the TA group is the most activated time in the TA group. a long cell; or, if any one of the non-timing reference cells in the TA group is in an active state, does not send explicit deactivation signaling to the timing reference cell in the TA group, so that the TA The timing reference cell within the group is the cell with the longest activation time in the TA group.
  • the processing module 21 is specifically configured to: before the deactivation timer of the timing reference cell in the TA group times out, send a physical layer control channel PDCCH scheduling signaling or send the signaling on the timing reference cell in the TA group.
  • the PDCCH scheduling signaling of the timing reference cell in the TA group triggers the terminal device to restart the deactivation timer of the timing reference cell, so that the timing reference cell in the TA group is the activation time in the TA group. The longest cell.
  • the processing module 21 is specifically configured to determine that a deactivation timer length is not configured for the terminal device, or the TA group, or the timing reference cell in the TA group, so that the The timing reference cell in the TA group is the cell with the longest activation time in the TA group; or the deactivation timer or the location of the terminal device by using RRC signaling or media access control MAC signaling Deactivating a deactivation timer of the TA group or a deactivation timer of the timing reference cell in the TA group, so that the timing reference cell in the TA group is the longest activation time in the TA group Community.
  • the processing module 21 is configured to: when a PDCCH command order is sent to the terminal device, triggering a cell in the TA group to initiate random access, stopping the deactivation timer of the random access initiating cell,
  • the timing reference cell in the TA group is the cell with the longest activation time in the TA group.
  • the processing module 21 is further configured to: after the random access initiated by a cell in the TA group ends, send a PDCCH order to the terminal device to trigger another cell in the TA group to initiate random access. And restarting the deactivation timer of the random access initiating cell.
  • the processing module 21 is specifically configured to: after sending PDCCH scheduling signaling on a certain cell in the TA group or transmitting PDCCH scheduling signaling for a cell in the TA group, restarting the certain cell, a scheduling cell and a deactivation timer on the timing reference cell in the TA group corresponding to the certain cell and the scheduling cell, so that the timing reference cell in the TA group is the longest activation time in the TA group. Community.
  • modules of the device of the present invention may be integrated or integrated.
  • the above modules can be combined into one module, or can be further split into multiple sub-modules.
  • the present invention can be implemented by means of software plus a necessary general hardware platform, and of course, can also be through hardware, but in many cases, the former is a better implementation. the way.
  • the form of the software product is embodied, the computer software product is stored in a storage medium
  • a number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform the methods described in various embodiments of the present invention.
  • modules in the apparatus in the embodiments may be distributed in the apparatus of the embodiment according to the description of the embodiments, 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.

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Abstract

本发明公开了一种定时参考小区的去激活管理方法和设备,该方法包括:终端设备执行使定时提前量TA组内的定时参考小区是所述TA组内激活时间最长的小区的处理。本发明实施例中,可以保证在TA组内任何一个小区有上行数据传输需求的情况下,该TA组内的定时参考小区不会被去激活,能够保证准确获得定时参考小区的下行定时,从而保证上行传输能够在基站设备期望的时刻到达基站设备。

Description

一种定时参考小区的去激活管理方法和设备 本申请要求于 2011 年 12 月 07 日提交中国专利局, 申请号为 201110403386.7, 发明名称为 "一种定时参考小区的去激活管理方 法和设备"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,尤其涉及一种定时参考小区的去激活 管理方法和设备。 背景技术
( 1 )载波聚合技术。
LTE-A ( LTE- Advanced, 高级 LTE ) 系统要求的峰值速率比 LTE ( Long Term Evolution, 长期演进 ) 系统有较大的提高, 且 LTE-A系 统要求和 LTE系统很好的兼容。 基于提高峰值速率、 与 LTE系统兼 容、 充分利用频率资源的需要, 在 LTE-A系统中引入了 CA ( Carrier Aggregation, 载波聚合)技术。 CA技术指终端可同时聚合一个或多 个小区, 在这些小区上可以同时工作; 终端聚合的小区个数由基站根 据终端的业务需求进行配置; 为一个终端配置的小区可以分为 PCell ( Primary Cell, 主小区)和 SCdl ( Secondary Cell, 辅小区)。
在 CA的场景下, 一个终端只有一个小区作为 PCell, 终端在该 PCell上建立和基站的 RRC ( Radio Resource Control, 无线资源控制 ) 连接, 该 PCell负责承载终端所有载波上行控制信息的传输。 在 CA 的场景下, SCdl主要作为资源用于传输用户的业务数据, 且基站配 置的 SCell默认处于去激活状态, 即不能进行上 /下行数据传输, 如果 需要进行上 /下行数据传输, 则需要先激活这些 SCdl。
( 2 ) CA下的激活 /去激活机制。
在 CA的场景下,为了使终端可以更好的节电, 引入了激活 /去激 活机制; LTE-A 系统中的激活 /去激活是针对单个小区进行的, 具体 实施方式为显式方式或隐式方式; 需要注意的是, 隐式方式只适用于 去激活操作。
显式激活 /去激活机制,即基站通过发送激活 /去激活 MAC( Media Access Control, 媒体访问控制) CE ( Control Element, 控制单元) 控制终端聚合小区的激活状态;如图 1所示,为激活 /去激活 MAC CE 的格式示意图, MAC CE的长度为 8bit, 每个 bit对应一个小区; 最 右侧 bit对应 PCdl, 由于 PCdl不会被去激活, 因此该位置为 R; 其 它 bit分别对应一个 SCdl, 即 Ci对应编号为 i的 SCdl, 当 Ci取 " Γ 时, 表示激活该 SCdl, 当 Ci取 "0" 时, 表示去激活该 SCell。
隐式去激活机制,即通过引入去激活定时器来进行隐式去激活的 方式。 去激活定时器基于终端进行配置, 且基于小区进行维护。 如果 基站没有配置该去激活定时器,则默认该去激活定时器长度取值无穷 大。 去激活定时器的维护方式包括: 当终端接收到针对某个小区的激 活信令时, 启动 /重启该小区对应的去激活定时器; 在去激活定时器 运行期间, 一旦收到针对该小区的上行或下行数据传输的调度信令, 则会重启该小区的去激活定时器。
需要注意的是,针对小区的上行或下行数据传输的调度信令通过 PDCCH ( Physical Control Channel, 物理层控制信道)? 载; 此外, 如果是跨载波调度,则需要同时启动调度和被调度小区的去激活定时 器; 此外, 在去激活定时器超时后, 终端需要去激活该小区。
( 3 ) LTE-A系统的 Multi-TA ( Multiple Time Alignment, 多定时 提前量)。
为了保证不同终端或同一个终端聚合的不同小区传输的上行数 据能够同时到达基站, 终端需要对上行传输时刻做调整, 该调整量为
TA。 在 LTE R10以及之前版本中, 一个终端只有一个上行载波, 因 此只需要维持一个上行 TA; 而对于 LTE R10之后的版本, 终端聚合 的上行载波数可能多于 1个,因此为了保证不同上行载波传输的数据 能够同时到达基站,需要考虑不同载波使用不同的上行 TA,即多 TA。 需要考虑到的多 TA 场景包括: 终端聚合的上行载波属于不同 band (频带); 终端聚合的上行载波上传输的数据到达基站途经的节点不 同, 如某些经过中继, 某些不经过。
如果终端聚合的多个小区有部分小区具有相同 TA, 则可将使用 相同或近似上行 TA的若干个小区划分为一组, 称为一个 TA组, 每 个小区的 TA基于该 TA组进行维护; 每个 TA组初始的 TA通过在 TA组内某个小区做随机接入获得; 需要注意的是, TA组内发起随机 接入的小区对应的下行载波将作为该 TA组内所有小区后续上行传输 的定时参考, 即发起随机接入的小区为定时参考小区。
在实现本发明的过程中,发明人发现现有技术中至少存在以下问 题:
如果作为定时参考小区的 SCdl上没有数据传输需求, 则定时参 考小区会被去激活; 如果此时归属于同一 TA组的其它小区有上行数 据传输需求, 则由于定时参考小区被去激活, 导致无法准确获得定时 参考小区的下行定时, 导致以其为定时参考小区的 TA组内的其它小 区无法准确的进行上行数据传输。 发明内容
本发明实施例提供一种定时参考小区的去激活管理方法和设备, 以保证定时参考小区不被去激活。
为了达到上述目的,本发明实施例提供一种定时参考小区的去激 活管理方法, 包括: 终端设备执行使定时提前量 TA组内的定时参考 小区是所述 TA组内激活时间最长的小区的处理。
本发明实施例提供一种定时参考小区的去激活管理方法, 包括: 基站设备执行使定时提前量 TA组内的定时参考小区是所述 TA组内 激活时间最长的小区的处理。
本发明实施例提供一种终端设备, 包括: 处理模块, 用于执行使 定时提前量 TA组内的定时参考小区是所述 TA组内激活时间最长的 小区的处理。
本发明实施例提供一种基站设备, 包括: 处理模块, 用于执行使 定时提前量 TA组内的定时参考小区是所述 TA组内激活时间最长的 小区的处理。
与现有技术相比, 本发明实施例至少具有以下优点: 可以保证在 TA组内任何一个小区有上行数据传输需求的情况下, 该 TA组内的 定时参考小区不会被去激活,能够保证准确获得定时参考小区的下行 定时, 从而保证上行传输能够在基站设备期望的时刻到达基站设备。 附图说明
为了更清楚地说明本发明的技术方案,下面将对实施例描述中所 需要使用的附图作筒单地介绍, 显而易见地, 下面描述中的附图仅仅 是本发明的一些实施例, 对于本领域普通技术人员来讲, 在不付出创 造性劳动的前提下, 还可以根据这些附图获得其他的附图。
图 1是现有技术中激活 /去激活 MAC CE的格式示意图; 图 2A和图 2B是本发明实施例一提供的一种定时参考小区的去 激活管理方法流程示意图; 图 3是本发明实施例六提供的一种基站设备结构示意图; 图 4是本发明实施例七提供的一种终端设备结构示意图。 具体实施方式
下面将结合本发明中的附图, 对本发明中的技术方案进行清楚、 完整地描述, 显然, 所描述的实施例仅仅是本发明的一部分实施例, 而不是全部的实施例。基于本发明中的实施例, 本领域普通技术人员 在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发 明保护的范围。
实施例一
在支持 Multi-TA的系统中, 针对每个 TA组, 会使用该 TA组内 发起随机接入的小区的下行载波作为该 TA组内所有小区上行传输的 定时参考, 因此只要该 TA组内任何一个小区有上行数据传输需求, 则该定时参考小区 (即 TA组内发起随机接入的小区)就不能被去激 活。 对于 PCdl所在的 TA组, 作为定时参考小区的 PCdl—直处于 激活状态, 因此无需考虑引入特殊机制; 但是对于全部由 SCdl组成 的 TA组,如果作为定时参考的 SCdl上没有数据传输需求,则该 SCdl 可能会被去激活, 而归属于同一个 TA组内的其它小区可能有上行数 据传输需求, 因此需要提供一种避免定时参考小区被去激活的方法。
基于上述分析, 本发明实施例一提供一种定时参考小区(还可以 称为定时参考载波, 这里以定时参考小区为例) 的去激活管理方法, 由终端设备执行使 TA组内的定时参考小区是该 TA组内激活时间最 长的小区的处理; 以及, 由基站设备执行使 TA组内的定时参考小区 是该 TA组内激活时间最长的小区的处理; 从而在 TA组内任何一个 小区有上行数据传输需求时, 避免该 TA组内的定时参考小区被去激 活, 如图 2A和 2B所示, 分别为基站设备侧的一种优选处理流程和 终端设备侧的一种优选处理流程。
如图 2A所示, 该基站设备侧的处理方法包括以下步骤: 步骤 201A, 基站设备确定终端设备在 TA组内有小区需要传输 上行数据。
具体的, 基站设备可以根据调度器的调度情况和 /或 HARQ ( Hybrid Auto Repeat request, 混合自动重传请求 )反馈情况确定终 端设备在 TA组内有小区需要传输上行数据。
步骤 202A,基站设备执行使 TA组内的定时参考小区是 TA组内 激活时间最长的小区的处理。
具体的, 当基站设备确定终端设备在 TA组内有小区需要传输上 行数据时, 该基站设备需要执行相关处理, 以使 TA组内的定时参考 小区是 TA组内激活时间最长的小区。
如图 2B所示, 该终端设备侧的处理方法包括以下步骤: 步骤 201B, 终端设备确定在 TA组内有小区需要传输上行数据。 步骤 202B,终端设备执行使 TA组内的定时参考小区是 TA组内 激活时间最长的小区的处理。
具体的,当终端设备确定在 TA组内有小区需要传输上行数据时, 该终端设备需要执行相关处理, 以使 TA组内的定时参考小区是 TA 组内激活时间最长的小区。
需要说明的是, 上述图 2A的处理与图 2B的处理之间并没有顺 序关系。
以下对基站设备执行使 TA组内的定时参考小区是 TA组内激活 时间最长的小区的处理、 以及终端设备执行使 TA组内的定时参考小 区是 TA组内激活时间最长的小区的处理的具体处理方式进行详细说 明。 方式一、 为了避免定时参考小区被显式去激活, 贝' J :
基站设备执行使 TA组内的定时参考小区是 TA组内激活时间最 长的小区的处理, 包括: 基站设备确定自身不通过显式去激活机制去 激活 TA组内的定时参考小区, 以使 TA组内的定时参考小区是 TA 组内激活时间最长的小区; 或者, 基站设备在 TA组内任何一个非定 时参考小区处于激活状态的情况下, 不会向 TA组内的定时参考小区 发送显式去激活信令, 以使 TA组内的定时参考小区是 TA组内激活 时间最长的小区。
进一步的,如果基站设备需要去激活该 TA组内的定时参考小区, 则需要先对该 TA组内的定时参考小区进行重配, 定时参考小区重配 方式可以通过基站发送 PDCCH order (命令 )触发 TA组内其它小区 发起随机接入实现。
终端设备执行使 TA组内的定时参考小区是 TA组内激活时间最 长的小区的处理包括: 当终端设备接收到针对 TA组的显式去激活信 令后, 如果显式去激活信令指示去激活定时参考小区, 则忽略显式去 激活信令, 以使 TA组内的定时参考小区是 TA组内激活时间最长的 小区; 或者, 如果显式去激活信令指示 TA组内任何一个非定时参考 小区处于激活状态, 则保持定时参考小区同样处于激活状态, 以使 TA组内的定时参考小区是 TA组内激活时间最长的小区。
方式二、 为了避免定时参考小区被隐式去激活, 可以通过基站设 备的调度避免定时参考小区被隐式去激活, 贝' J :
基站设备执行使 TA组内的定时参考小区是 TA组内激活时间最 长的小区的处理, 包括: 基站设备在 TA组内的定时参考小区的去激 活定时器超时之前, 在该 TA组内的定时参考小区上发送 PDCCH调 度信令或者发送针对 TA组内定时参考小区的 PDCCH调度信令, 触 发终端设备重启定时参考小区的去激活定时器, 以使 TA组内的定时 参考小区是 TA组内激活时间最长的小区。
具体的, 当基站设备判断出终端设备在某个 TA组内有上行数据 传输需求时, 则基站设备需要通过调度保证该 TA组内的定时参考小 区是该 TA组中处于激活时间最长的小区, 即基站设备需要保证在定 时参考小区的去激活定时器超时前,至少能成功的针对该定时参考小 区或者在该定时参考小区上发送一条针对上行或者下行的 PDCCH调 度信令。
终端设备执行使 TA组内的定时参考小区是 TA组内激活时间最 长的小区的处理, 包括: 终端设备在 TA组内的定时参考小区的去激 活定时器超时之前, 如果接收到基站设备在定时参考小区上发送的 PDCCH 调度信令或者接收到基站设备针对定时参考小区发送的 PDCCH调度信令, 则重启定时参考小区的去激活定时器, 以使 TA 组内的定时参考小区是 TA组内激活时间最长的小区。
方式三、 为了避免定时参考小区被隐式去激活, 可以通过对 TA 组内定时参考小区禁用隐式去激活机制避免定时参考小区被隐式去 激活, 可以通过显示信令配置禁用定时参考小区上的隐式去激活机 制, 则:
基站设备执行使 TA组内的定时参考小区是 TA组内激活时间最 长的小区的处理, 包括: 基站设备确定不为终端设备、 或 TA组、 或 TA组内的定时参考小区配置去激活定时器长度, 以使 TA组内的定 时参考小区是 TA组内激活时间最长的小区; 或者, 基站设备判断出 终端设备在 TA组内有上行数据传输需求时, 如果终端设备或 TA组 或 TA组内的定时参考小区配置有去激活定时器, 则通过 RRC信令 或 MAC信令对终端设备的去激活定时器、或 TA组的去激活定时器、 或 TA组内的定时参考小区的去激活定时器进行去配置, 以使 TA组 内的定时参考小区是 TA组内激活时间最长的小区。
终端设备执行使 TA组内的定时参考小区是 TA组内激活时间最 长的小区的处理, 包括: 在基站设备不为终端设备、 或 TA组、 或 TA 组内的定时参考小区配置去激活定时器长度时, 或者, 在基站设备通 过 RRC信令或 MAC信令对终端设备的去激活定时器、或 TA组的去 激活定时器、 或 TA组内的定时参考小区的去激活定时器进行去配置 时, 终端设备默认 TA组内的定时参考小区的去激活定时器取值无穷 大(即取值为 infinity ), 以使 TA组内的定时参考小区是 TA组内激 活时间最长的小区。
需要注意的是, 为了更灵活使用去激活定时器, 则去激活定时器 的长度可以基于终端设备配置, 还可以考虑基于 TA组或者基于小区 配置的方式。
方式四、 为了避免定时参考小区被隐式去激活, 可以通过对 TA 组内定时参考小区禁用隐式去激活机制避免定时参考小区被隐式去 激活, 可以当小区上发起随机接入过程, 则自动停止该小区上的隐式 去激活定时器, 贝 ij :
基站设备执行使 TA组内的定时参考小区是 TA组内激活时间最 长的小区的处理, 包括: 当基站设备向终端设备发送 PDCCH order 触发 TA组内的某个小区发起随机接入时(该某个小区即为定时参考 小区), 基站设备停止随机接入发起小区的去激活定时器, 以使 TA 组内的定时参考小区是 TA组内激活时间最长的小区。优选的, 当 TA 组内的某个小区发起的随机接入结束后,或基站设备向终端设备发送 PDCCH order触发 TA组内的另一个小区发起随机接入时, 基站设备 重启随机接入发起小区的去激活定时器。 终端设备执行使 TA组内的定时参考小区是 TA组内激活时间最 长的小区的处理, 包括: 当终端设备接收到基站设备发送的触发 TA 组内的某个小区发起随机接入的 PDCCH order时, 终端设备停止随 机接入发起小区的去激活定时器,以使 TA组内的定时参考小区是 TA 组内激活时间最长的小区。 优选的, 当 TA组内的某个小区发起的随 机接入结束后, 或终端设备接收到基站设备发送的触发 TA组内的另 一个小区发起随机接入的 PDCCH order时, 终端设备重启随机接入 发起小区的去激活定时器。
方式五、 为了避免定时参考小区被隐式去激活, 可以通过重启定 时参考小区上的去激活定时器避免定时参考小区被隐式去激活, 贝' J :
基站设备执行使 TA组内的定时参考小区是 TA组内激活时间最 长的小区的处理, 包括: 基站设备在终端设备的 TA组内的任何一个 小区上发送 PDCCH调度信令或者向终端设备发送针对 TA组内任何 一个小区的 PDCCH调度信令后, 基站设备重启该小区、 其调度小区 (跨载波调度)以及该小区和其调度小区对应的 TA组内定时参考小 区上的去激活定时器, 以使 TA组内的定时参考小区是 TA组内激活 时间最长的小区。
终端设备执行使 TA组内的定时参考小区是 TA组内激活时间最 长的小区的处理, 包括: 当终端设备接收到基站设备在 TA组内的某 个小区上发送的 PDCCH调度信令或者接收到基站设备发送的针对 TA组内的某个小区的 PDCCH调度信令, 则终端设备重启某个小区、 其调度小区 (跨载波调度) 以及某个小区和其调度小区对应的 TA组 内定时参考小区上的去激活定时器, 以使 TA组内的定时参考小区是 TA组内激活时间最长的小区。
需要注意的是,为了避免定时参考小区随机接入过程中该小区的 去激活定时器超时, 则在其收到 PDCCH order时, 需要停止该去激 活定时器。 可选的, 如果随机接入结束或者终端设备接收到基站设备 发送的针对该 TA组内另一个小区的 PDCCH order, 则终端设备可以 重启该小区对应的去激活定时器。
以下结合具体的应用场景对本发明实施例进行详细说明。应用场 景为: 假设终端设备可以聚合的小区有 3个, 分别为 Cdll、 Cell2、 Cell3, 其中 Celll属于一个 TA组(记为 TAG1 ), Cell2和 Cell3属于 一个 TA组(记为 TAG2 ) , 则本发明的实施例具体为:
实施例二
基于上述应用场景,本发明实施例二提供一种定时参考小区的去 激活管理方法, 以通过调度保证定时参考小区不会被去激活, 该方法 包括以下步骤:
步骤 1、假设终端设备首先在 Celll上和基站设备建立 RRC连接, 则 Celll为该终端设备的 PCell。
步骤 2、 随着终端设备数据传输需求的增加, 基站设备为终端设 备新增 Cell2和 Cell3。
步骤 3、 由于 Cdl2和 Cdl3与 Celll不属于一个 TA组, 则为了 建立 Cdl2和 Cdl3上的上行同步, 基站设备需要让终端设备在 Cell2 或者 Cdl3上发起随机接入, 具体选择哪个小区取决于基站设备的具 体实现, 假设基站设备选择发送针对 Cell3的 PDCCH order, 则触发 终端设备在 Cell3上发起随机接入, 即 Cell3将作为 TAG2内所有小 区后续上行传输使用的下行定时参考小区。
步骤 4、 随着终端设备数据量变化, 基站设备可以根据调度器的 调度情况和 /或 TA组内上行传输的接收情况, 判断 TA组内是否还有 上行数据传输需求; 如果 Cdl3上没有数据传输需求, 但 Cell2上有 数据传输需求, 则为了保证定时参考小区 Cdl3仍处于激活状态, 基 站设备需要保证在定时参考小区的去激活定时器超时前,至少能成功 的针对该定时参考小区或者在该定时参考小区的 PDCCH上发送一条 上行或者下行调度信令;从而可以保证在该 TA组内任何一个 Cell有 上行数据传输时, 作为定时参考的 Cell3—定处于激活状态。
步骤 5、 可选的, 如果基站设备根据接收到的调度信令和 /或 HARQ反馈信息判断 TA组内没有上行数据传输需求了, 则基站设备 可以选择不再发送针对该定时参考小区的调度信令或者不在该定时 参考小区的 PDCCH上发送调度信令, 当然也可以显式或者隐式去激 活该定时参考小区。
实施例三
基于上述应用场景,本发明实施例三提供一种定时参考小区的去 激活管理方法,以通过对定时参考小区禁用隐式去激活机制保证其处 于激活状态, 该方法包括以下步骤:
步骤 1、假设终端设备首先在 Cdll上和基站设备建立 RRC连接, 则 Cdll为该终端设备的 PCell。
步骤 2、 随着终端设备数据传输需求的增加, 基站设备为终端设 备新增 Cell2和 Cell3。
步骤 3、 基站设备向终端设备发送 RRC重配信令, 该重配信令 中对去激活定时器进行去配置;本步骤也可以在步骤 1终端设备和基 站设备建立 RRC连接之后的 RRC连接重配过程中执行。
步骤 4、 由于 Cdl2和 Cdl3与 Celll不属于一个 TA组, 则为了 建立 Cdl2和 Cdl3上的上行同步, 基站设备需要让终端设备在 Cell2 或者 Cdl3上发起随机接入, 具体选择哪个小区取决于基站设备的具 体实现, 假设基站设备选择发送针对 Cell3的 PDCCH order, 则触发 终端设备在 Cell3上发起随机接入, 即 Cell3将作为 TAG2内所有小 区后续上行传输使用的下行定时参考小区。
步骤 5、 随着终端设备数据量变化, 基站设备可以根据调度器的 调度情况和 /或 TA组内上行传输的接收情况, 判断 TA组内是否还有 上行数据传输需求; 如果 Cdl3上没有数据传输需求, 但 Cell2上有 数据传输需求(即该 TA组内任何一个小区上有上行数据传输需求 ), 则为了保证定时参考小区 Cdl3仍处于激活状态, 基站设备不能发送 针对 Cell3的显式去激活信令, 而此时 Cdl3上隐式去激活定时器取 值又取 infinity, 因此也不会被隐式去激活, 从而可以保证 Cell3在其 归属 TA组内有上行数据传输需求时不会被去激活。
步骤 6、 可选的, 如果基站设备根据接收到的调度信令和 /或 HARQ反馈信息判断 TA组内没有上行数据传输需求了, 则基站设备 可以针对 Cdl3 发送显式去激活信令或者为其重配去激活定时器长 度, 以显式或者隐式去激活该定时参考小区。
实施例四
基于上述应用场景,本发明实施例四提供一种定时参考小区的去 激活管理方法,以通过对定时参考小区禁用隐式去激活机制保证其处 于激活状态, 该方法包括以下步骤:
步骤 1、假设终端设备首先在 Cdll上和基站设备建立 RRC连接, 则 Cdll为该终端设备的 PCell。
步骤 2、 随着终端设备数据传输需求的增加, 基站设备为终端设 备新增 Cell2和 Cell3。
步骤 3、 由于 Cdl2和 Cdl3与 Celll不属于一个 TA组, 则为了 建立 Cdl2和 Cdl3上的上行同步, 基站设备需要让终端设备在 Cell2 或者 Cdl3上发起随机接入, 具体选择哪个小区取决于基站设备的具 体实现, 假设基站设备选择发送针对 Cell3的 PDCCH order, 则触发 终端设备在 Cell3上发起随机接入, 即 Cell3将作为 TAG2内所有小 区后续上行传输使用的下行定时参考小区。
步骤 4、 一旦终端设备收到针对 Cell3的 PDCCH order, 如果该 小区上去激活定时器处于运行状态, 则停止该去激活定时器运行。
步骤 5、 随着终端设备数据量变化, 基站设备可以根据调度器的 调度情况和 /或 TA组内上行传输的接收情况, 判断 TA组内是否还有 上行数据传输需求; 如果 Cdl3上没有数据传输需求, 但 Cell2上有 数据传输需求(即该 TA组内任何一个小区上有上行数据传输需求 ), 则为了保证定时参考小区 Cdl3仍处于激活状态, 基站设备不能发送 针对 Cell3的显式去激活信令, 而此时 Cdl3上隐式去激活定时器处 于未运行状态, 因此也不会被隐式去激活, 从而可以保证 Cdl3在其 归属 TA组内有上行数据传输需求时不会被去激活。 当然, 基站设备 也需要对 TA组内各个小区的去激活定时器采用相同的维护方式。
步骤 6、 可选的, 如果终端设备根据接收到的调度信令和 /或 HARQ反馈信息判断 TA组内没有上行数据传输需求了, 则终端设备 可以选择重启 Cdl3上的去激活定时器, 以根据去激活定时器隐式去 激活该定时参考小区或者根据基站设备发送的显式去激活信令显式 去激活该小区。
实施例五
基于上述应用场景,本发明实施例五提供一种定时参考小区的去 激活管理方法,以通过对去激活定时器采用合理的维护方式保证定时 参考小区处于激活状态, 该方法包括以下步骤:
步骤 1、假设终端设备首先在 Cdll上和基站设备建立 RRC连接, 则 Cdll为该终端设备的 PCell。 步骤 2、 随着终端设备数据传输需求的增加, 基站设备为终端设 备新增 Cell2和 Cell3。
步骤 3、 由于 Cdl2和 Cdl3与 Celll不属于一个 TA组, 则为了 建立 Cdl2和 Cdl3上的上行同步, 基站设备需要让终端设备在 Cell2 或者 Cdl3上发起随机接入, 具体选择哪个小区取决于基站设备的具 体实现, 假设基站设备选择发送针对 Cell3的 PDCCH order, 则触发 终端设备在 Cell3上发起随机接入, 即 Cell3将作为 TAG2内所有小 区后续上行传输使用的下行定时参考小区。
步骤 4、 一旦终端设备接收到针对 Cell3上的 PDCCH order, 贝' J 终端设备停止该小区上的去激活定时器; 当终端设备再次接收到针对 该 TA组内任何一个 Cell的调度信令后, 则重启 Cdl3上的去激活定 时器。
步骤 5、 随着终端设备数据量变化, 基站设备可以根据调度器的 调度情况和 /或 TA组内上行传输的接收情况, 判断 TA组内是否还有 上行数据传输需求; 如果 Cdl3上没有数据传输需求, 但 Cell2上有 数据传输需求(即该 TA组内任何一个小区上有上行数据传输需求 ), 则为了保证定时参考小区 Cdl3仍处于激活状态, 只要终端设备接收 到针对该 TA组内任何一个小区的调度信令, 则在启动该小区及其调 度小区(仅限跨载波调度情况)上的去激活定时器的同时, 也需要重 启 Cdl3上的去激活定时器,从而可以保证 Cell3在其归属 TA组内有 上行数据传输需求时不会被去激活。
此外可选的, 去激活定时器的重启还可以考虑 HARQ反馈信息, 例如反馈信息为 NACK时, 也需要重启接收到 NACK反馈的小区、 其调度小区以及重启定时参考小区的去激活定时器。 当然, 基站设备 侧的 TA组内各个小区的去激活定时器也要按照同样的方式进行维 护。
步骤 6、 可选的, 如果终端设备根据接收到的调度信令和 /或 HARQ反馈信息判断 TA组内没有上行数据传输需求了, 则该 TA组 内的定时参考小区 Cdl3可以被显式或者隐式去激活。
实施例六
基于与上述方法同样的发明构思,本发明实施例中还提供了一种 终端设备, 如图 3所示, 该终端设备包括:
处理模块 11 ,用于执行使定时提前量 TA组内的定时参考小区是 所述 TA组内激活时间最长的小区的处理。
本发明实施例中, 该终端设备还包括: 确定模块 12, 用于确定 终端设备在所述 TA组内有小区需要传输上行数据;
所述处理模块 11具体用于当在所述 TA组内有小区需要传输上 行数据时, 执行使 TA组内的定时参考小区是所述 TA组内激活时间 最长的小区的处理。
所述处理模块 11 ,具体用于当接收到针对所述 TA组的显式去激 活信令后, 如果所述显式去激活信令指示去激活所述定时参考小区, 则忽略所述显式去激活信令, 以使所述 TA组内的定时参考小区是所 述 TA组内激活时间最长的小区; 或者, 如果所述显式去激活信令指 示所述 TA组内任何一个非定时参考小区处于激活状态, 则保持所述 定时参考小区同样处于激活状态, 以使所述 TA组内的定时参考小区 是所述 TA组内激活时间最长的小区。
所述处理模块 11 ,具体用于在所述 TA组内的定时参考小区的去 激活定时器超时前,如果接收到所述基站设备在所述定时参考小区上 发送的物理层控制信道 PDCCH调度信令或者接收到所述基站设备发 送的针对所述定时参考小区的 PDCCH调度信令, 则重启所述定时参 考小区的去激活定时器,以使所述 TA组内的定时参考小区是所述 TA 组内激活时间最长的小区。
所述处理模块 11 , 具体用于在所述基站设备不为终端设备、 或 所述 TA组、 或所述 TA组内的定时参考小区配置去激活定时器长度 时, 或者, 在所述基站设备通过无线资源控制 RRC信令或媒体访问 控制 MAC信令对终端设备的去激活定时器、 或所述 TA组的去激活 定时器、 或所述 TA组内的定时参考小区的去激活定时器进行去配置 时, 默认所述 TA组内的定时参考小区的去激活定时器取值无穷大, 以使所述 TA组内的定时参考小区是所述 TA组内激活时间最长的小 区。
所述处理模块 11 , 具体用于当接收到所述基站设备发送的触发 所述 TA组内的某个小区发起随机接入的 PDCCH命令 order时, 停 止所述随机接入发起小区的去激活定时器, 以使所述 TA组内的定时 参考小区是所述 TA组内激活时间最长的小区。
所述处理模块 11 ,进一步用于当所述 TA组内的某个小区发起的 随机接入结束后, 或接收到所述基站设备发送的触发所述 TA组内的 另一个小区发起随机接入的 PDCCH order时, 重启所述随机接入发 起小区的去激活定时器。
所述处理模块 11 ,具体用于当接收到所述基站设备在所述 TA组 内的某个小区上发送的 PDCCH调度信令或者接收到所述基站设备发 送的针对所述 TA组内的某个小区的 PDCCH调度信令, 则重启所述 某个小区、 其调度小区以及所述某个小区和其调度小区对应的 TA组 内定时参考小区上的去激活定时器, 以使所述 TA组内的定时参考小 区是所述 TA组内激活时间最长的小区。
其中,本发明装置的各个模块可以集成于一体,也可以分离部署。 上述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。 实施例七
基于与上述方法同样的发明构思,本发明实施例中还提供了一种 基站设备, 如图 4所示, 该基站设备包括:
处理模块 21 ,用于执行使定时提前量 TA组内的定时参考小区是 所述 TA组内激活时间最长的小区的处理。
本发明实施例中, 该基站设备还包括: 确定模块 22, 用于确定 终端设备在所述 TA组内有小区需要传输上行数据;
所述处理模块 21 ,具体用于当确定终端设备在所述 TA组内有小 区需要传输上行数据时, 执行使 TA组内的定时参考小区是所述 TA 组内激活时间最长的小区的处理。
所述处理模块 21 , 具体用于确定自身不通过显式去激活机制去 激活所述 TA组内的定时参考小区, 以使所述 TA组内的定时参考小 区是所述 TA组内激活时间最长的小区; 或者, 在所述 TA组内任何 一个非定时参考小区处于激活状态的情况下, 不会向所述 TA组内的 定时参考小区发送显式去激活信令, 以使所述 TA组内的定时参考小 区是所述 TA组内激活时间最长的小区。
所述处理模块 21 ,具体用于在所述 TA组内的定时参考小区的去 激活定时器超时前, 在所述 TA组内的定时参考小区上发送物理层控 制信道 PDCCH调度信令或者发送针对所述 TA组内定时参考小区的 PDCCH调度信令, 触发所述终端设备重启所述定时参考小区的去激 活定时器, 以使所述 TA组内的定时参考小区是所述 TA组内激活时 间最长的小区。
所述处理模块 21 , 具体用于确定不为所述终端设备、 或所述 TA 组、 或所述 TA组内的定时参考小区配置去激活定时器长度, 以使所 述 TA组内的定时参考小区是所述 TA组内激活时间最长的小区; 或 者, 通过无线资源控制 RRC信令或媒体访问控制 MAC信令对所述 终端设备的去激活定时器、或所述 TA组的去激活定时器、或所述 TA 组内的定时参考小区的去激活定时器进行去配置, 以使所述 TA组内 的定时参考小区是所述 TA组内激活时间最长的小区。
所述处理模块 21 , 具体用于当向所述终端设备发送 PDCCH命 令 order触发所述 TA组内的某个小区发起随机接入时, 停止所述随 机接入发起小区的去激活定时器, 以使所述 TA组内的定时参考小区 是所述 TA组内激活时间最长的小区。
所述处理模块 21 ,进一步用于当所述 TA组内的某个小区发起的 随机接入结束后, 或向所述终端设备发送 PDCCH order触发所述 TA 组内的另一个小区发起随机接入时,重启所述随机接入发起小区的去 激活定时器。
所述处理模块 21 , 具体用于在所述 TA组内的某个小区上发送 PDCCH调度信令或者发送针对所述 TA组内某个小区的 PDCCH调度 信令后, 重启所述某个小区、 其调度小区以及所述某个小区和其调度 小区对应的 TA组内定时参考小区上的去激活定时器, 以使所述 TA 组内的定时参考小区是所述 TA组内激活时间最长的小区。
其中,本发明装置的各个模块可以集成于一体,也可以分离部署。 上述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。
通过以上的实施方式的描述,本领域的技术人员可以清楚地了解 到本发明可借助软件加必需的通用硬件平台的方式来实现, 当然也可 以通过硬件,但很多情况下前者是更佳的实施方式。基于这样的理解, 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)执行本发明各个实施例所述的方法。
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发明所必须的。
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。
上述本发明实施例序号仅仅为了描述, 不代表实施例的优劣。 以上公开的仅为本发明的几个具体实施例, 但是, 本发明并非局 限于此,任何本领域的技术人员能思之的变化都应落入本发明的保护 范围。

Claims

权利要求
1、 一种定时参考小区的去激活管理方法, 其特征在于, 包括: 终端设备执行使定时提前量 TA组内的定时参考小区是所述 TA 组内激活时间最长的小区的处理。
2、 如权利要求 1所述的方法, 其特征在于, 所述终端设备执行 使 TA组内的定时参考小区是所述 TA组内激活时间最长的小区的处 理, 包括:
当所述终端设备确定自身在所述 TA组内有小区需要传输上行数 据时, 所述终端设备执行使 TA组内的定时参考小区是所述 TA组内 激活时间最长的小区的处理。
3、 如权利要求 1或 2所述的方法, 其特征在于, 所述终端设备 执行使 TA组内的定时参考小区是所述 TA组内激活时间最长的小区 的处理, 包括:
当所述终端设备接收到针对所述 TA组的显式去激活信令后, 如 果所述显式去激活信令指示去激活所述定时参考小区,则忽略所述显 式去激活信令, 以使所述 TA组内的定时参考小区是所述 TA组内激 活时间最长的小区; 或者,
如果所述显式去激活信令指示所述 TA组内任何一个非定时参考 小区处于激活状态, 则保持所述定时参考小区同样处于激活状态, 以 使所述 TA组内的定时参考小区是所述 TA组内激活时间最长的小区。
4、 如权利要求 1或 2所述的方法, 其特征在于, 所述终端设备 执行使 TA组内的定时参考小区是所述 TA组内激活时间最长的小区 的处理, 包括:
所述终端设备在所述 TA组内的定时参考小区的去激活定时器超 时前,如果接收到所述基站设备在所述定时参考小区上发送的物理层 控制信道 PDCCH调度信令或者接收到所述基站设备发送的针对所述 定时参考小区的 PDCCH调度信令, 则重启所述定时参考小区的去激 活定时器, 以使所述 TA组内的定时参考小区是所述 TA组内激活时 间最长的小区。
5、 如权利要求 1或 2所述的方法, 其特征在于, 所述终端设备 执行使 TA组内的定时参考小区是所述 TA组内激活时间最长的小区 的处理, 包括:
在所述基站设备不为所述终端设备、 或所述 TA组、 或所述 TA 组内的定时参考小区配置去激活定时器长度时, 或者,
在所述基站设备通过无线资源控制 RRC 信令或媒体访问控制 MAC信令对所述终端设备的去激活定时器、 或所述 TA组的去激活 定时器、 或所述 TA组内的定时参考小区的去激活定时器进行去配置 时,
所述终端设备默认所述 TA组内的定时参考小区的去激活定时器 取值无穷大, 以使所述 TA组内的定时参考小区是所述 TA组内激活 时间最长的小区。
6、 如权利要求 1或 2所述的方法, 其特征在于, 所述终端设备 执行使 TA组内的定时参考小区是所述 TA组内激活时间最长的小区 的处理, 包括: 当所述终端设备接收到所述基站设备发送的触发所述 TA组内的 某个小区发起随机接入的 PDCCH命令 order时, 所述终端设备停止 所述随机接入发起小区的去激活定时器, 以使所述 TA组内的定时参 考小区是所述 TA组内激活时间最长的小区。
7、 如权利要求 6所述的方法, 其特征在于, 所述方法进一步包 括:
当所述 TA组内的某个小区发起的随机接入结束后, 或所述终端 设备接收到所述基站设备发送的触发所述 TA组内的另一个小区发起 随机接入的 PDCCH order时, 所述终端设备重启所述随机接入发起 小区的去激活定时器。
8、 如权利要求 1或 2所述的方法, 其特征在于, 所述终端设备 执行使 TA组内的定时参考小区是所述 TA组内激活时间最长的小区 的处理, 包括:
当所述终端设备接收到所述基站设备在所述 TA组内的某个小区 上发送的 PDCCH调度信令或者接收到所述基站设备发送的针对所述 TA组内的某个小区的 PDCCH调度信令, 则所述终端设备重启所述 某个小区、 其调度小区以及所述某个小区和其调度小区对应的 TA组 内定时参考小区上的去激活定时器, 以使所述 TA组内的定时参考小 区是所述 TA组内激活时间最长的小区。
9、 一种定时参考小区的去激活管理方法, 其特征在于, 包括: 基站设备执行使定时提前量 TA组内的定时参考小区是所述 TA 组内激活时间最长的小区的处理。
10、 如权利要求 9所述的方法, 其特征在于, 所述基站设备执行 使 TA组内的定时参考小区是所述 TA组内激活时间最长的小区的处 理, 包括:
当所述基站设备确定终端设备在所述 TA组内有小区需要传输上 行数据时, 所述基站设备执行使 TA组内的定时参考小区是所述 TA 组内激活时间最长的小区的处理。
11、 如权利要求 9或 10所述的方法, 其特征在于, 所述基站设 备执行使 TA组内的定时参考小区是所述 TA组内激活时间最长的小 区的处理, 包括:
所述基站设备确定自身不通过显式去激活机制去激活所述 TA组 内的定时参考小区, 以使所述 TA组内的定时参考小区是所述 TA组 内激活时间最长的小区; 或者,
所述基站设备在所述 TA组内任何一个非定时参考小区处于激活 状态的情况下, 不会向所述 TA组内的定时参考小区发送显式去激活 信令, 以使所述 TA组内的定时参考小区是所述 TA组内激活时间最 长的小区。
12、 如权利要求 9或 10所述的方法, 其特征在于, 所述基站设 备执行使 TA组内的定时参考小区是所述 TA组内激活时间最长的小 区的处理, 包括:
所述基站设备在所述 TA组内的定时参考小区的去激活定时器超 时前,在所述 TA组内的定时参考小区上发送物理层控制信道 PDCCH 调度信令或者发送针对所述 TA组内定时参考小区的 PDCCH调度信 令, 触发所述终端设备重启所述定时参考小区的去激活定时器, 以使 所述 TA组内的定时参考小区是所述 TA组内激活时间最长的小区。
13、 如权利要求 9或 10所述的方法, 其特征在于, 所述基站设 备执行使 TA组内的定时参考小区是所述 TA组内激活时间最长的小 区的处理, 包括:
所述基站设备确定不为所述终端设备、或所述 TA组、或所述 TA 组内的定时参考小区配置去激活定时器长度, 以使所述 TA组内的定 时参考小区是所述 TA组内激活时间最长的小区; 或者,
所述基站设备通过无线资源控制 RRC信令或媒体访问控制 MAC 信令对所述终端设备的去激活定时器、或所述 TA组的去激活定时器、 或所述 TA组内的定时参考小区的去激活定时器进行去配置, 以使所 述 TA组内的定时参考小区是所述 TA组内激活时间最长的小区。
14、 如权利要求 9或 10所述的方法, 其特征在于, 所述基站设 备执行使 TA组内的定时参考小区是所述 TA组内激活时间最长的小 区的处理, 包括:
当所述基站设备向所述终端设备发送 PDCCH命令 order触发所 述 TA组内的某个小区发起随机接入时, 所述基站设备停止所述随机 接入发起小区的去激活定时器, 以使所述 TA组内的定时参考小区是 所述 TA组内激活时间最长的小区。
15、 如权利要求 14所述的方法, 其特征在于, 所述方法进一步 包括:
当所述 TA组内的某个小区发起的随机接入结束后, 或所述基站 设备向所述终端设备发送 PDCCH order触发所述 TA组内的另一个小 区发起随机接入时,所述基站设备重启所述随机接入发起小区的去激 活定时器。
16、 如权利要求 9或 10所述的方法, 其特征在于, 所述基站设 备执行使 TA组内的定时参考小区是所述 TA组内激活时间最长的小 区的处理, 包括:
所述基站设备在所述 TA组内的某个小区上发送 PDCCH调度信 令或者发送针对所述 TA组内某个小区的 PDCCH调度信令后, 所述 基站设备重启所述某个小区、其调度小区以及所述某个小区和其调度 小区对应的 TA组内定时参考小区上的去激活定时器, 以使所述 TA 组内的定时参考小区是所述 TA组内激活时间最长的小区。
17、 一种终端设备, 其特征在于, 包括:
处理模块, 用于执行使定时提前量 TA组内的定时参考小区是所 述 TA组内激活时间最长的小区的处理。
18、 如权利要求 17所述的终端设备, 其特征在于, 还包括: 确定模块, 用于确定终端设备在所述 TA组内有小区需要传输上 行数据;
所述处理模块, 具体用于当在所述 TA组内有小区需要传输上行 数据时, 执行使 TA组内的定时参考小区是所述 TA组内激活时间最 长的小区的处理。
19、 如权利要求 17或 18所述的终端设备, 其特征在于, 所述处理模块, 具体用于当接收到针对所述 TA组的显式去激活 信令后, 如果所述显式去激活信令指示去激活所述定时参考小区, 则 忽略所述显式去激活信令, 以使所述 TA组内的定时参考小区是所述 TA组内激活时间最长的小区; 或者, 如果所述显式去激活信令指示 所述 TA组内任何一个非定时参考小区处于激活状态, 则保持所述定 时参考小区同样处于激活状态 , 以使所述 TA组内的定时参考小区是 所述 TA组内激活时间最长的小区。
20、 如权利要求 17或 18所述的终端设备, 其特征在于, 所述处理模块, 具体用于在所述 TA组内的定时参考小区的去激 活定时器超时前,如果接收到所述基站设备在所述定时参考小区上发 送的物理层控制信道 PDCCH调度信令或者接收到所述基站设备发送 的针对所述定时参考小区的 PDCCH调度信令, 则重启所述定时参考 小区的去激活定时器, 以使所述 TA组内的定时参考小区是所述 TA 组内激活时间最长的小区。
21、 如权利要求 17或 18所述的终端设备, 其特征在于, 所述处理模块, 具体用于在所述基站设备不为终端设备、 或所述 TA组、 或所述 TA组内的定时参考小区配置去激活定时器长度时, 或者, 在所述基站设备通过无线资源控制 RRC信令或媒体访问控制 MAC信令对终端设备的去激活定时器、 或所述 TA组的去激活定时 器、 或所述 TA组内的定时参考小区的去激活定时器进行去配置时, 默认所述 TA组内的定时参考小区的去激活定时器取值无穷大, 以使 所述 TA组内的定时参考小区是所述 TA组内激活时间最长的小区。
22、 如权利要求 17或 18所述的终端设备, 其特征在于, 所述处理模块,具体用于当接收到所述基站设备发送的触发所述
TA组内的某个小区发起随机接入的 PDCCH命令 order时, 停止所 述随机接入发起小区的去激活定时器, 以使所述 TA组内的定时参考 小区是所述 TA组内激活时间最长的小区。
23、 如权利要求 22所述的终端设备, 其特征在于,
所述处理模块, 进一步用于当所述 TA组内的某个小区发起的随 机接入结束后, 或接收到所述基站设备发送的触发所述 TA组内的另 一个小区发起随机接入的 PDCCH order时, 重启所述随机接入发起 小区的去激活定时器。
24、 如权利要求 17或 18所述的终端设备, 其特征在于, 所述处理模块, 具体用于当接收到所述基站设备在所述 TA组内 的某个小区上发送的 PDCCH调度信令或者接收到所述基站设备发送 的针对所述 TA组内的某个小区的 PDCCH调度信令, 则重启所述某 个小区、 其调度小区以及所述某个小区和其调度小区对应的 TA组内 定时参考小区上的去激活定时器, 以使所述 TA组内的定时参考小区 是所述 TA组内激活时间最长的小区。
25、 一种基站设备, 其特征在于, 包括:
处理模块, 用于执行使定时提前量 TA组内的定时参考小区是所 述 TA组内激活时间最长的小区的处理。
26、 如权利要求 25所述的基站设备, 其特征在于, 还包括: 确定模块, 用于确定终端设备在所述 TA组内有小区需要传输上 行数据; 所述处理模块, 具体用于当确定终端设备在所述 ΤΑ组内有小区 需要传输上行数据时, 执行使 ΤΑ组内的定时参考小区是所述 ΤΑ组 内激活时间最长的小区的处理。
27、 如权利要求 25或 26所述的基站设备, 其特征在于, 所述处理模块,具体用于确定自身不通过显式去激活机制去激活 所述 ΤΑ组内的定时参考小区, 以使所述 ΤΑ组内的定时参考小区是 所述 ΤΑ组内激活时间最长的小区; 或者, 在所述 ΤΑ组内任何一个 非定时参考小区处于激活状态的情况下, 不会向所述 ΤΑ组内的定时 参考小区发送显式去激活信令, 以使所述 ΤΑ组内的定时参考小区是 所述 ΤΑ组内激活时间最长的小区。
28、 如权利要求 25或 26所述的基站设备, 其特征在于, 所述处理模块, 具体用于在所述 ΤΑ组内的定时参考小区的去激 活定时器超时前, 在所述 ΤΑ组内的定时参考小区上发送物理层控制 信道 PDCCH调度信令或者发送针对所述 ΤΑ组内定时参考小区的 PDCCH调度信令, 触发所述终端设备重启所述定时参考小区的去激 活定时器, 以使所述 ΤΑ组内的定时参考小区是所述 ΤΑ组内激活时 间最长的小区。
29、 如权利要求 25或 26所述的基站设备, 其特征在于, 所述处理模块,具体用于确定不为所述终端设备、或所述 ΤΑ组、 或所述 ΤΑ组内的定时参考小区配置去激活定时器长度,以使所述 ΤΑ 组内的定时参考小区是所述 ΤΑ组内激活时间最长的小区; 或者, 通过无线资源控制 RRC信令或媒体访问控制 MAC信令对所述 终端设备的去激活定时器、或所述 TA组的去激活定时器、或所述 TA 组内的定时参考小区的去激活定时器进行去配置, 以使所述 TA组内 的定时参考小区是所述 TA组内激活时间最长的小区。
30、 如权利要求 25或 26所述的基站设备, 其特征在于, 所述处理模块, 具体用于当向所述终端设备发送 PDCCH命令 order触发所述 TA组内的某个小区发起随机接入时,停止所述随机接 入发起小区的去激活定时器, 以使所述 TA组内的定时参考小区是所 述 TA组内激活时间最长的小区。
31、 如权利要求 30所述的基站设备, 其特征在于,
所述处理模块, 进一步用于当所述 TA组内的某个小区发起的随 机接入结束后,或向所述终端设备发送 PDCCH order触发所述 TA组 内的另一个小区发起随机接入时,重启所述随机接入发起小区的去激 活定时器。
32、 如权利要求 25或 26所述的基站设备, 其特征在于, 所述处理模块, 具体用于在所述 TA 组内的某个小区上发送 PDCCH调度信令或者发送针对所述 TA组内某个小区的 PDCCH调度 信令后, 重启所述某个小区、 其调度小区以及所述某个小区和其调度 小区对应的 TA组内定时参考小区上的去激活定时器, 以使所述 TA 组内的定时参考小区是所述 TA组内激活时间最长的小区。
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