WO2012126355A1 - 定时提前值的更新处理方法、基站、用户设备及系统 - Google Patents

定时提前值的更新处理方法、基站、用户设备及系统 Download PDF

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Publication number
WO2012126355A1
WO2012126355A1 PCT/CN2012/072638 CN2012072638W WO2012126355A1 WO 2012126355 A1 WO2012126355 A1 WO 2012126355A1 CN 2012072638 W CN2012072638 W CN 2012072638W WO 2012126355 A1 WO2012126355 A1 WO 2012126355A1
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Prior art keywords
timing advance
group
advance group
cell
identifier
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PCT/CN2012/072638
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English (en)
French (fr)
Inventor
张宏平
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华为技术有限公司
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Publication of WO2012126355A1 publication Critical patent/WO2012126355A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W56/00Synchronisation arrangements
    • H04W56/004Synchronisation arrangements compensating for timing error of reception due to propagation delay
    • H04W56/0045Synchronisation arrangements compensating for timing error of reception due to propagation delay compensating for timing error by altering transmission time

Definitions

  • the method for updating the timing advance value, the base station, the user equipment, and the system The application is filed on March 21, 2011, and the application number is 201110067704.7.
  • the invention name is "the update processing method of the timing advance value, the base station, the user equipment, and the system.
  • the present invention relates to the field of communications technologies, and in particular, to an update processing method for a timing advance value, a base station, a user equipment, and a system.
  • a user equipment served by an evolved base station (Evolution Node B; hereinafter referred to as an eNB) (User Equipment;
  • the transmitted uplink signal can be synchronously arrived at the base station, such as an eNB.
  • the eNB adjusts the corresponding timing advance (TA) value for the served UE according to the offset of the uplink signal.
  • TA timing advance
  • a carrier aggregation (Carrier Aggregation) model In a communication system, such as an LTE system, there may be a carrier aggregation (Carrier Aggregation) model, and a UE may aggregate multiple cells to communicate with a base station, such as an eNB.
  • the uplink signals of the UE may be transmitted to the eNB through different cells, but the path lengths of transmission through different cells may be different. For example, it may be necessary to pass a frequency repeater (Repeater) through some cells, and may not need to pass through other cells.
  • a cell having the same TA value corresponding to the UE is referred to as a TA group.
  • the multiple cells aggregated by the UE may belong to different TA groups.
  • the TA information table of the UE is stored in the memory of the UE, where the TA information table includes each TA group identifier of the UE, and a cell identifier included in the TA group corresponding to each TA group identifier and a corresponding The TA value of each TA group.
  • Timing advance value The method for updating the timing advance value provided by the embodiment of the present invention, the base station, the user equipment, and the system are used to update the corresponding timing advance group when the timing advance group of the user equipment changes or the timing advance value of the timing advance group changes. Timing advance value.
  • a method for updating a timing advance value includes: selecting a cell from the timing advance group when a timing advance value of a timing advance group of the user equipment needs to be adjusted;
  • the timing advance command carries the adjustment information; the adjustment information is used by the user equipment to modify the timing advance of the timing advance group according to the adjustment information. value.
  • a method for updating a timing advance value includes: sending a configuration message to the user equipment, where the configuration message carries an identifier of an added cell, where the user equipment increases according to the The identifier of the cell is configured to configure the added cell for the user equipment;
  • an identifier of the timing advance group to which the added cell belongs is broadcasted in the system message of the added cell, where the user equipment acquires the identifier of the timing advance group, and according to the identifier and location of the timing advance group The identifier of the already configured timing advance group of the user equipment is obtained, and the timing advance value of the timing advance group to which the added cell belongs is obtained.
  • a method for updating a timing advance value includes: determining that a timing advance group to which a cell of a user equipment belongs is modified from a first timing advance group to a second timing advance group;
  • a method for updating a timing advance value includes: receiving a timing advance command sent by a base station on a cell in a timing advance group, where the timing is raised The pre-command carries the adjustment information;
  • a method for updating a timing advance value includes: receiving a configuration message sent by a base station, where the configuration message carries an identifier of an added cell, and configuring the increase according to the identifier of the added cell Community
  • the timing advance value of the timing advance group to which the added cell belongs is obtained according to the identifier of the timing advance group and the identifier of the already configured timing advance group.
  • a method for updating a timing advance value includes: receiving, when a timing advance group to which a cell belongs, a modification request message sent by a base station, where the modification request information is used to belong to the cell to which the cell belongs The timing advance group is modified from the first timing advance group to the second timing advance group;
  • a base station including:
  • a selecting module configured to: when the timing advance value of the timing advance group of the user equipment needs to be adjusted, select a cell from the timing advance group;
  • a sending module configured to send a timing advance command to the user equipment on the cell selected by the selecting module, where the timing advance command carries the adjustment information, where the adjustment information is used by the user equipment according to the The adjustment information modifies the timing advance value of the timing advance group.
  • a base station including:
  • a sending module configured to send, to the user equipment, a configuration message, where the configuration message carries an identifier of the added cell, where the user equipment is configured according to the identifier of the added cell User equipment configuring the added cell;
  • a broadcast module configured to broadcast, in a system message of the added cell, an identifier of a timing advance group to which the added cell belongs, where the user equipment acquires an identifier of the timing advance group, and advances according to the timing The identifier of the group and the identifier of the already configured timing advance group of the user equipment acquire the timing advance value of the timing advance group to which the added cell belongs.
  • a base station including:
  • a determining module configured to determine that the timing advance group to which the cell of the user equipment belongs is modified from the first timing advance group to the second timing advance group;
  • a sending module configured to send, according to the result determined by the determining module, a modification request message to the user equipment, where the modification request message is used by the user equipment to advance a timing of the cell according to the modification request information.
  • the group is modified from the first timing advance group to the second timing advance group, and the timing advance value of the second timing advance group is acquired.
  • a user equipment including:
  • a receiving module configured to receive a timing advance command sent by the base station in a cell in the timing advance group; the timing advance command carries the adjustment information;
  • a modifying module configured to modify, according to the adjustment information in the timing advance command received by the receiving module, a timing advance value of the timing advance group to which the cell belongs.
  • a user equipment including:
  • a receiving module configured to receive a configuration message sent by the base station, where the configuration message carries an identifier of the added cell
  • a configuration module configured to configure, according to the configuration message received by the receiving module, a cell corresponding to the identifier of the added cell as a cell of the user equipment;
  • the receiving module is further configured to receive a system message of the added cell that is broadcast by the base station, where the system message carries an identifier of a timing advance group to which the added cell belongs;
  • An acquiring module configured to acquire, according to the identifier of the timing advance group received by the receiving module and the identifier of the configured timing advance group, the timing advance group to which the added cell belongs Time advance value.
  • a user equipment including:
  • a receiving module configured to: when the timing advance group to which the cell belongs changes, the modification request sent by the receiving base station to modify the timing advance group to which the aggregated cell belongs from the first timing advance group to the second timing advance group Information
  • a modifying module configured to modify, according to the modification request information received by the receiving module, the timing advance group to which the cell belongs to the second timing advance group to the second timing advance group;
  • an obtaining module configured to modify, according to the modifying module, the timing advance group to which the cell belongs to the second timing advance group, and obtain a timing advance value of the second timing advance group.
  • a communication system including: a base station and a user equipment; and the base station is configured to: when the timing advance value of the timing advance group of the user equipment needs to be adjusted, from the timing advance group Selecting a cell; sending, on the cell, a timing advance command to the user equipment, where the timing advance command carries adjustment information;
  • the user equipment is configured to receive the timing advance command sent by the base station on the cell, and modify a timing advance value of the timing advance group to which the cell belongs according to the adjustment information.
  • a communication system including: a base station and a user equipment; the base station, configured to send a configuration message to the user equipment, where the configuration message carries an identifier of an added cell, and An identifier of a timing advance group to which the added cell belongs is broadcasted in a system message of the added cell;
  • the user equipment is configured to receive a configuration message sent by the base station, and receive a system message of the added cell that is broadcast by the base station, according to the identifier of the timing advance group and the identifier of the configured timing advance group. Obtaining a timing advance value of the timing advance group to which the added cell belongs.
  • a communication system including: a base station and a user equipment;
  • the base station is configured to determine that the timing advance group to which the cell of the user equipment belongs is modified from the first timing advance group to the second timing advance group; and send a modification request message to the user equipment;
  • the user equipment is configured to receive the modification request information sent by the base station, and modify, according to the modification request information, the timing advance group to which the cell belongs to the second timing advance group to the second timing advance group. And acquiring a timing advance value of the second timing advance group.
  • the ⁇ value in the above case may be updated by using the technical solution of the embodiment of the present invention.
  • the technical solution of the embodiment of the present invention can ensure that the signaling overhead in the process of updating the threshold is low, and the update and maintenance of the UI in the UE can be effectively implemented.
  • the drawings used in the description of the present invention or the description of the prior art are described in a single manner. It is obvious that the drawings in the following description are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without paying creative labor.
  • FIG. 1 is a flowchart of a method for updating a threshold according to Embodiment 1 of the present invention.
  • FIG. 2 is a flowchart of a method for updating a threshold value according to Embodiment 2 of the present invention.
  • FIG. 3 is a flowchart of a method for updating a threshold value according to Embodiment 3 of the present invention.
  • FIG. 6 is a flowchart of a method for updating a threshold value according to Embodiment 6 of the present invention.
  • FIG. 7 is a schematic structural diagram of a communication system according to Embodiment 7 of the present invention.
  • FIG. 8 is a schematic structural diagram of a base station according to Embodiment 8 of the present invention.
  • FIG. 9 is a schematic structural diagram of a base station according to Embodiment 9 of the present invention.
  • FIG. 10 is a schematic structural diagram of a base station according to Embodiment 10 of the present invention.
  • FIG. 11 is a schematic structural diagram of a UE according to Embodiment 11 of the present invention.
  • FIG. 12 is a schematic structural diagram of a UE according to Embodiment 12 of the present invention.
  • FIG. 13 is a schematic structural diagram of a UE according to Embodiment 13 of the present invention.
  • FIG. 14 is a schematic structural diagram of a communication system according to Embodiment 14 of the present invention.
  • FIG. 15 is a schematic structural diagram of a communication system according to Embodiment 15 of the present invention.
  • FIG. 16 is a schematic structural diagram of a communication system according to Embodiment 16 of the present invention. detailed description
  • the TA group can be divided into different cells according to the network deployment.
  • the cell belonging to one TA group is fixed, and the UE is independent of the UE.
  • FIG. 1 is a flowchart of a method for updating a TA value according to Embodiment 1 of the present invention.
  • the execution subject of the TA value update processing method of this embodiment is a base station, such as an eNB.
  • the method for updating the TA value in this embodiment may specifically include the following steps:
  • Step 100 When the TA value of the TA group of the UE needs to be adjusted, the cell is selected from the TA group.
  • Step 101 Send a TA command to the UE, where the TA command carries the adjustment information; the adjustment information is used by the UE. The TA value of the TA group is modified according to the adjustment information.
  • the base station when the base station recognizes that the TA value of the TA group of the UE changes, and needs to be adjusted, the base station selects a cell from the TA group. A TA command (Command) is then sent to the UE on the selected cell. The TA Command carries adjustment information. In this way, when the UE passes the When the cell receives the TA command, the cell can obtain the adjustment information, and tamper with the ⁇ value of the ⁇ group to which the cell belongs according to the adjustment information, so as to implement an effective update of the ⁇ value of the ⁇ group in the UE. maintain.
  • a ⁇ information table of the UE may be stored in a memory of the UE, where the ⁇ information table may include an identifier of each ⁇ group of the UE, an identifier of a cell corresponding to each ⁇ group, and each ⁇ group Corresponding devaluation and other information.
  • the UE may send an uplink signal according to related information in the UI table.
  • the UE may specifically modify the threshold value of the ⁇ group in the ⁇ information table stored in the memory according to the adjustment information, so that the UE subsequently sends an uplink signal according to the ⁇ value to ensure that the uplink signal can arrive at the base station synchronously.
  • the cell can be any one of the groups.
  • the base station may select the cell with the best signal among all the cells in the TA group as the selected cell.
  • the base station uses the TA command in the Medium Access Control (MAC) command to notify the UE to change.
  • the TA value carries the TA group identifier and the tampering TA value information to be modified in the TA Command to notify the UE to change the TA value corresponding to the TA group identifier.
  • carrying the TA group identifier that needs to be modified in the TA command increases the signaling overhead.
  • the UE in the transmission mode of the old version of R8/9 cannot recognize the TA group identifier, resulting in poor backward compatibility of the scheme.
  • the cell is selected from the TA group; and the timing advance command is sent to the UE on the cell, where the TA command carries the adjustment information;
  • the TA command is used by the UE to modify the TA value of the TA group to which the cell belongs according to the adjustment information.
  • the signaling overhead can be effectively saved while the TA value is effectively updated.
  • the technical solution of the embodiment does not need to be improved on the UE, the backward compatibility is good, and the TA value in the UE can be effectively maintained.
  • the TA group in the foregoing embodiment may also include only a small one. Zone, at this time each cell corresponds to a TA value. At this time, the cell is the only cell included in the TA group.
  • the adjustment information includes the offset value of the TA value of the TA group or the TA value after the TA group adjustment.
  • the UE may obtain the TA value corresponding to the adjustment of the TA group according to the offset value of the TA value of the TA group and the original TA value of the TA group.
  • the adjustment information is the adjusted TA value of the TA group, the UE can directly obtain the adjusted TA value of the TA group.
  • the TA group of the UE in the technical solution of the foregoing embodiment includes a TA group at the UE level or a TA group at the cell level.
  • FIG. 2 is a flowchart of a method for updating a TA value according to Embodiment 2 of the present invention.
  • the execution subject of the TA value update processing method of this embodiment is a base station, such as an eNB.
  • the method for updating the TA value in this embodiment may specifically include the following steps:
  • Step 200 Send a configuration message to the UE, where the configuration message carries the identifier of the added cell.
  • the configuration message is configured for the UE to configure the added cell according to the identifier of the added cell.
  • Step 201: In the system message of the added cell The identifier of the TA group to which the added cell belongs is broadcasted, so that the UE obtains the identifier of the TA group, and obtains the TA value of the TA group to which the added cell belongs according to the identifier of the TA group and the identifier of the TA group that has been configured by the UE. .
  • the base station when the base station receives the quality report information sent by the UE or determines to add a cell to the UE, the base station sends a configuration message to the UE to request the UE to set the second cell corresponding to the identifier of the added cell as the UE.
  • the cell enables the added cell to serve the UE.
  • the UE In addition to setting the configuration parameters of the added cell in the UE according to the prior art scheme, specifically, the UE also needs to record the identifier of the added cell, for example, adding in the TA information table stored in the memory of the UE. The identity of the added cell is recorded. In this way, the UE can know that the added cell can serve the UE.
  • the UE may receive the message sent by the base station on the corresponding cell according to the recorded identifier of the added cell, or send the uplink signal on the cell corresponding to the identifier of the added cell.
  • the base station also broadcasts the system to which the added cell belongs in the system message in the added cell.
  • the identity of the TA group when the UE can receive the system message, and obtain the identifier of the TA group to which the added cell belongs. Then, the UE may obtain the TA value of the TA group to which the added cell belongs, by using the TA group identifier and the TA group to which the UE has joined the UE.
  • the newly added cell belongs to the TA group that the UE has configured, and the TA value of the associated TA group of the added cell is compared with the UE.
  • the configured TA group has the same TA value.
  • the identifier of the TA group of the added cell is different from the identifier of all the TA groups that have been configured by the UE, it indicates that the added cell belongs to a new TA group, and the UE can initiate random access on the added cell.
  • a random access (RACH) process is performed to request a base station to acquire a TA value of a TA group corresponding to the added cell.
  • the configuration message in this embodiment may be a radio resource control (Radio Resource Control; hereinafter referred to as RRC) connection reconfiguration message in the LTE system.
  • RRC Radio Resource Control
  • step 200 may be performed before step 201 is performed, or step 201 may be performed first and then step 200 may be performed.
  • the configuration message is sent to the UE, and the identifier of the TA group to which the added cell belongs is broadcasted in the system message of the added cell, so that the UE obtains the added
  • the identifier of the TA group to which the cell belongs, and the TA value of the TA group to which the added cell belongs is obtained according to the identifier of the TA group to which the added cell belongs and the TA group to which the cell of the UE belongs.
  • the RRC connection reconfiguration cell of the newly added cell may carry the TA group identifier to which the new cell belongs, but the solution may increase the signaling overhead. Compared with the prior art solution, the technical solution of this embodiment can effectively save signaling overhead.
  • FIG. 3 is a flowchart of a method for updating a TA value according to Embodiment 3 of the present invention.
  • the execution subject of the update processing method of the TA value of the embodiment is a base station, such as an eNB.
  • the method for updating the TA value in this embodiment may specifically include:
  • Step 300 Determine that the TA group to which the UE belongs belongs to be modified from the first TA group to the second TA group.
  • Step 301 Send a modification request message to the UE, where the modification request message is used by the UE to modify the TA group to which the cell belongs from the first TA group to the second TA group according to the modification request information; and acquire the TA value of the second TA group.
  • the application scenario of this embodiment may be that the TA group of the UE is a TA group of the UE level.
  • the update processing method of the TA value in the embodiment can effectively update the TA value of the changed UE timely and accurately when the TA group of the UE changes, which greatly facilitates subsequent transmission according to the TA value.
  • the uplink signal can reach the base station.
  • the base station sends the modification request information to the UE, where the modification request information carries the identifier of the cell and the identifier of the second TA group to which the cell belongs.
  • the base station may also send the modification request information to the UE directly on the cell.
  • the modification request information does not need to carry the identifier of the cell, and may only carry the identifier of the second TA group to which the cell belongs.
  • the modification request information in this embodiment is used by the UE to modify the TA group to which the cell belongs from the first TA group to the second TA group.
  • the UE may modify the identifier of the TA group to which the cell belongs in the TA information table stored in the UE information from the identifier of the first TA group to the identifier of the second TA group, so that the UE may use the TA of the cell.
  • Group information is managed.
  • the UE when the UE recognizes that the TA group of a cell changes, for example, a cell belongs to the TA group X, and the previous repeater does not pass the repeater, the cell cannot share the TA with other cells of the same TA group, and thus belongs to The TA group X becomes a new TA group y.
  • the UE sends a quality detection report to the base station, and the base station sends a modification request message to the UE, which may also be referred to as a TA group change command.
  • the base station may send a MAC command or an RRC message to the UE to notify the UE. Changes in the TA group.
  • the TA group change command sent by the base station to the UE may be carried The identifier of the cell and the identifier of the new TA group y to which the cell belongs, for the UE to update the TA group corresponding to the cell to the TA group Y.
  • the base station sends a TA group change command to the UE, and the TA group change command may carry only the identifier of the new TA group y to which the cell belongs, so that the UE may use the in-memory TA information table.
  • the identifier of the TA group corresponding to the cell is updated to the identifier of the TA group Y, so that the TA group corresponding to the cell is updated.
  • FIG. 4 is a flowchart of a method for updating a TA value according to Embodiment 4 of the present invention.
  • the execution subject of the TA value update processing method in this embodiment is a UE.
  • the method for updating the TA value in this embodiment may specifically include the following:
  • Step 400 Receive a TA Command sent by the base station on a cell in the TA group; the TA Command carries the adjustment information;
  • Step 401 Modify, according to the adjustment information, a TA value of a TA group to which the cell belongs.
  • the UE may modify the TA value of the TA group to which the cell belongs in the TA information table stored in the UE's memory according to the adjustment information.
  • This embodiment describes the technical solution of the present invention on the UE side, and corresponds to the technical solution in the first embodiment.
  • details refer to the technical solution described in the foregoing first embodiment, and details are not described herein again.
  • the TA command sent by the base station in the cell in the TA group is received; the TA Command carries the adjustment information; and the TA value of the TA group to which the cell belongs is modified according to the adjustment information.
  • the signaling value can be effectively saved while effectively updating the TA value.
  • no improvement is needed for the UE, and backward compatibility is better.
  • the cell may be any one of the TA groups.
  • the base station may select the cell with the best signal among all the cells in the TA group as the cell.
  • the adjustment information is the offset value of the TA value of the TA group or the TA value after the TA group adjustment.
  • the UE may obtain the TA value corresponding to the adjustment of the TA group according to the offset value of the TA value of the TA group and the original TA value of the TA group.
  • the adjustment information is the adjusted TA value of the TA group, the UE can directly obtain the adjusted TA value of the TA group.
  • the TA group of the UE in the technical solution of the foregoing embodiment is a TA group at the UE level or a TA group at the cell level.
  • FIG. 5 is a flowchart of a method for updating a TA value according to Embodiment 5 of the present invention.
  • the execution subject of the update processing method of the TA value of this embodiment is the UE.
  • the method for updating the TA value in this embodiment may specifically include the following:
  • Step 500 Receive a configuration message sent by the base station, where the configuration message carries an identifier of a cell that needs to be added.
  • the UE may configure the added cell according to the identity of the added cell.
  • the base station involved in this embodiment may be, for example, an eNB.
  • Step 501 Receive a system message of an added cell broadcasted by a base station, where the system message carries an identifier of a TA group to which the added cell belongs;
  • Step 502 Obtain a TA value of the TA group to which the added cell belongs according to the identifier of the TA group and the identifier of the TA group that the UE has configured.
  • the application scenario of this embodiment may be that the TA group of the UE is a TA group at the cell level.
  • This embodiment describes the technical solution of the present invention on the UE side, and corresponds to the technical solution described in the foregoing Embodiment 2. For details, refer to the technical solution in the foregoing Embodiment 2, and details are not described herein again.
  • the method for updating the TA value in this embodiment can effectively update the TA value of the newly added cell, which greatly facilitates that the uplink signal sent according to the TA value can reach the base station.
  • the RRC connection reconfiguration cell in the newly added cell carries the TA group identifier of the new cell, and the signaling overhead can be effectively saved.
  • the identifier of the TA group and the TA group that the UE has configured may be specifically as follows:
  • the UE determines whether the identifier of the TA group corresponding to the added cell belongs to the identifier of the TA group that the UE has configured; in one embodiment, when it belongs, step (2) is performed; in one embodiment, otherwise, When it does not belong, perform step (3);
  • the TA value of the TA group that has been configured by the UE is the TA value corresponding to the TA group to which the added cell belongs;
  • the UE determines whether the identifier of the TA group corresponding to the added cell belongs to the identifier process of the TA group that has been configured by the UE, and may also be referred to as a process of determining whether the RACH needs to be initiated.
  • the UE may have aggregated multiple cells, which have been configured as cells of the UE, and multiple cells that have been configured as UEs may belong to different TA groups.
  • it is determined whether the identifier of the TA group is the same as the identifier of the TA group that the UE has configured.
  • the identifier of the TA group to which the added cell belongs is the same as the identifier of a certain TA group that the UE already exists, and has the same TA value.
  • the UE does not need to initiate the RACH process and the identifier of the TA group.
  • the TA value of the same TA group is the TA value of the second TA group.
  • the TA group to which the added cell belongs is a newly added TA group, and the RACH process is initiated to the base station to obtain the added The TA value of the TA group to which the cell belongs.
  • the method may further include:
  • the UE sets the cell corresponding to the identifier of the added cell as the cell of the UE according to the configuration message in step 500;
  • the UE sends an increase response message to the base station. Specifically, in the LTE system, the response information of the RRC connection reconfiguration is completed.
  • the UE when the UE sets the cell corresponding to the identifier of the added cell as the cell of the UE, the UE also needs to record the identifier of the added cell, for example, adding a record in the TA information table stored in the memory of the UE. The identity of the added cell. In this way, the UE can know that the added cell can serve the UE. That is, the UE may receive the message sent by the base station on the corresponding added cell according to the recorded identifier of the added cell, or send the uplink signal on the corresponding added cell in the identifier of the added cell.
  • FIG. 6 is a flowchart of a method for updating a TA value according to Embodiment 6 of the present invention.
  • the execution subject of the update processing method of the TA value of this embodiment is the UE.
  • the method for updating the TA value in this embodiment may specifically include the following:
  • Step 600 Receive, when the TA group to which the cell of the UE belongs changes, the modification request information sent by the base station;
  • the modification request information is used to modify the TA group to which the cell belongs from the first TA group to the second TA group.
  • Step 601 Modify, according to the modification request information, the TA group to which the first cell belongs from the first T A group to the second TA group;
  • Step 602 Obtain a TA value of the second TA group.
  • the application scenario of this embodiment may be that the TA group of the UE is a TA group of the UE level.
  • This embodiment describes the technical solution of the present invention on the UE side, and corresponds to the technical solution described in the foregoing Embodiment 3. For details, refer to the technical solution in the foregoing Embodiment 3, and details are not described herein again.
  • the update processing method of the TA value in the embodiment can effectively update the TA value of the changed UE timely and accurately when the TA group of the UE changes, which greatly facilitates subsequent transmission according to the TA value.
  • the uplink signal can reach the base station.
  • the UE receives the modification request information that is sent by the base station to modify the TA group to which the cell belongs from the first TA group to the second TA group, and specifically, the UE may receive the modification sent by the base station.
  • Requesting information where the modification request information carries the identifier of the first cell and the identifier of the second TA group to which the updated cell belongs, for the UE to mark the cell
  • the TA group to which the corresponding cell belongs is modified to belong to the second TA group.
  • the identifier of the TA group to which the first cell belongs in the TA information table stored in the memory of the UE may be modified to the second TA. The identity of the group.
  • the UE may receive the modification request information sent by the base station on the cell, where the modification request information carries the identifier of the second timing advance group to which the updated cell belongs.
  • the UE may be aware that the modification request information is used to modify the TA group to which the cell belongs, and the TA group to which the cell belongs is modified into the second TA group; for example, the UE may be used.
  • the identifier of the TA group to which the cell in the stored TA information table belongs is modified by the identifier of the first TA group to the identifier of the second TA group.
  • step 600 may also carry adjustment information, where the adjustment information is a TA offset value of the second TA group relative to the first TA group or a TA value of the second TA pre-group.
  • This can include the following steps:
  • the adjustment information is the TA offset value of the second TA group relative to the first TA group
  • the TA offset value of the second TA group relative to the first TA group and the TA value of the first TA group
  • the TA value of the second TA group can be obtained.
  • the adjustment information is the TA value of the second TA pre-group
  • the TA value of the second TA group can be directly obtained.
  • the following steps may be included: Initiating a RACH procedure in the cell to obtain a TA of the second TA group to which the updated cell belongs value.
  • the TA value of the changed UE is updated in time and accurately, which greatly facilitates that the uplink signal sent according to the TA value can reach the base station.
  • FIG. 7 is a schematic structural diagram of a communication system according to Embodiment 7 of the present invention.
  • the UE in this embodiment has four cells, where Celll and Cell2 share a TA value, and Celll and Cell2 belong to TA group1.
  • Cell3 and Cell4 share the TA value, and Cell3 and Cell4 belong to TA group2.
  • the TA command carries the TA to be modified.
  • the TA command carries the TA offset value of the TA group 2 that needs to be modified.
  • the TA value of the TA group to which the Cell3 belongs is modified according to the TA offset value in the TA command, that is, the TA value of all the cells in the TA group is modified.
  • the TA group 2 is modified.
  • the TA value that is, the TA value of cell3 and cell4.
  • the air interface overhead is reduced, and the current TA command structure does not need to be modified, and backward compatibility can be achieved.
  • FIG. 8 is a schematic structural diagram of a base station according to Embodiment 8 of the present invention. As shown in FIG. 8, the base station of this embodiment may specifically include: a selecting module 10 and a sending module 11.
  • the selecting module 10 is configured to select a cell from the TA group when the TA value of the TA group of the UE needs to be adjusted.
  • the sending module 11 is connected to the selecting module 10, and the sending module 11 is configured to send a TA command to the UE on the cell selected by the selecting module 10, where the TA command carries the adjusting information, where the adjusting information is used by the UE to modify the TA according to the adjusting information.
  • the TA value of the group is configured to select a cell from the TA group when the TA value of the TA group of the UE needs to be adjusted.
  • the sending module 11 is connected to the selecting module 10, and the sending module 11 is configured to send a TA command to the UE on the cell selected by the selecting module 10, where the TA command carries the adjusting information, where the adjusting information is used by the UE to modify the TA according to the adjusting information.
  • the TA value of the group is configured to select a cell from the TA group when the TA value of the
  • the method for implementing the update of the TA value by using the above-mentioned module is the same as the implementation of the related method embodiment.
  • the method for implementing the update of the TA value by using the above-mentioned module is the same as the implementation of the related method embodiment.
  • the base station in this embodiment implements the TA value of the TA group of the UE by using the foregoing module.
  • the cell is selected from the TA group; the timing advance command is sent to the UE on the cell, and the TA command carries the adjustment information; the TA command is used by the UE to modify the TA value of the TA group to which the cell belongs according to the adjustment information.
  • the signaling overhead can be effectively saved while the TA value is effectively updated.
  • the technical solution of the embodiment does not need to be improved on the UE, the backward compatibility is good, and the TA value in the UE can be effectively maintained.
  • the selection module 10 in the foregoing embodiment is specifically configured to select, as the cell, the cell with the best communication signal from the TA group when the TA value of the TA group of the UE needs to be adjusted.
  • FIG. 9 is a schematic structural diagram of a base station according to Embodiment 9 of the present invention.
  • the base station of this embodiment may specifically include: a sending module 20 and a broadcast module 21.
  • the sending module 20 is configured to send a configuration message to the UE, where the configuration message carries an identifier of the added cell, so that the UE adds the cell to the configuration of the UE according to the identifier of the added cell.
  • the broadcast module 21 is configured to broadcast, in the system message of the added cell, the identifier of the TA group to which the added cell belongs, for the UE to obtain the identifier of the TA group, and according to the identifier of the TA group and the identifier of the configured TA group of the UE. Obtain the TA value of the TA group to which the added cell belongs.
  • the TA group of the UE involved in this embodiment may be a TA group at the cell level.
  • the method for implementing the update of the TA value by using the above-mentioned module is the same as the implementation of the related method embodiment.
  • the method for implementing the update of the TA value by using the above-mentioned module is the same as the implementation of the related method embodiment.
  • the base station in this embodiment uses the foregoing module to send a configuration message to the UE when the cell is added to the UE, and broadcasts the identifier of the TA group to which the added cell belongs in the system message of the added cell, so that the UE obtains the added
  • the identifier of the TA to which the cell belongs, and the TA value of the TA group to which the added cell belongs is obtained according to the identifier of the TA group to which the added cell belongs and the identifier of the already configured TA group of the UE.
  • the TA of the newly added cell can be effectively implemented.
  • the value is updated, which greatly facilitates that the subsequent uplink signal transmitted according to the TA value can reach the base station.
  • FIG. 10 is a schematic structural diagram of a base station according to Embodiment 10 of the present invention.
  • the base station in this embodiment may specifically include: a determining module 30 and a sending module 31.
  • the determining module 30 is configured to determine that the TA group to which the UE's cell belongs is modified from the first TA group to the second TA group.
  • the sending module 31 is connected to the determining module 30, and the sending module 31 is configured to send, according to the result determined by the determining module 30, a modification request message to the UE, where the modification request message is used by the UE to set the TA group to which the cell belongs according to the modification request information.
  • the first TA group is modified to the second TA group, and the TA value of the second TA group is obtained.
  • the method for implementing the update of the TA value by using the above-mentioned module is the same as the implementation of the related method embodiment.
  • the method for implementing the update of the TA value by using the above-mentioned module is the same as the implementation of the related method embodiment.
  • the base station in this embodiment can effectively implement the timely and accurate update of the TA value of the changed UE when the TA group of the UE changes, which greatly facilitates the subsequent uplink sent according to the TA value.
  • the signal can reach the base station.
  • the sending module 31 of the present embodiment is configured to send, according to the result determined by the determining module 30, a modification request message to the UE, where the modification request message carries the identifier of the cell and the identifier of the second timing advance group; the modification request The information is used by the UE to modify the TA group to which the cell belongs from the first TA group to the second TA group according to the modification request message, and obtain the TA value of the second TA group.
  • the sending module 31 is specifically configured to send, according to the result determined by the determining module 30, the modification request information to the UE, where the modification request information carries the identifier of the second TA group; the modification request information is used by the UE according to the modification.
  • the request message modifies the TA group to which the cell belongs from the first TA group to the second TA group, and acquires the TA value of the second TA group.
  • FIG. 11 is a schematic structural diagram of a UE according to Embodiment 11 of the present invention. As shown in FIG. 11, the UE in this embodiment may specifically include: a receiving module 40 and a modifying module 41.
  • the receiving module 40 is configured to receive a TA command sent by the base station on the cell in the TA group; the TA command carries the adjustment information.
  • the modification module 41 is connected to the receiving module 40, and the modification module 41 is configured to modify the TA value of the TA group to which the cell belongs according to the adjustment information in the TA command received by the receiving module 40.
  • the method for implementing the update of the TA value by using the above-mentioned module is the same as the implementation of the related method embodiment.
  • the method for implementing the update of the TA value by using the above-mentioned module is the same as the implementation of the related method embodiment.
  • the UE in this embodiment implements the TA Command sent by the base station in the TA group in the TA group by using the foregoing module; the TA Command carries the adjustment information; and the TA value of the TA group to which the cell belongs is modified according to the adjustment information.
  • the TA value can be effectively updated, and the signaling overhead can be effectively saved.
  • no improvement is needed for the UE, and backward compatibility is better.
  • FIG. 12 is a schematic structural diagram of a UE according to Embodiment 12 of the present invention. As shown in FIG. 12, the UE in this embodiment may specifically include: a receiving module 50, a configuration module 51, and an obtaining module 52.
  • the receiving module 50 is configured to receive a configuration message sent by the base station, where the configuration message carries an identifier of the added cell.
  • the configuration module 51 is connected to the receiving module 50, and the configuration module 51 is configured to configure, according to the configuration message received by the receiving module 50, the cell corresponding to the identifier of the added cell as the cell of the UE.
  • the receiving module 50 is further configured to receive a system message of the added cell broadcast by the base station; where the system message carries the identifier of the TA group to which the added cell belongs.
  • the block 50 is connected, and the obtaining module 52 is configured to obtain, according to the identifier of the TA group received by the receiving module 50 and the identifier of the configured TA group, the TA value of the TA group to which the added cell belongs.
  • the method for implementing the update of the TA value by using the above-mentioned module is the same as the implementation of the related method embodiment.
  • the method for implementing the update of the TA value by using the above-mentioned module is the same as the implementation of the related method embodiment.
  • the UE in this embodiment can effectively update the TA value of the newly added cell by using the foregoing module, which greatly facilitates that the uplink signal sent according to the TA value can reach the base station.
  • the acquiring module 52 in the foregoing embodiment is specifically configured to determine that the identifier of the TA group received by the receiving module 50 is the identifier of the configured TA group, and the TA value of the configured TA group is used as the added cell.
  • the TA value corresponding to the TA group; or, the obtaining module 52 determines that the identifier of the TA group received by the receiving module 50 is not the identifier of the already configured TA group, and initiates a random access procedure on the added cell to acquire the added cell from the base station.
  • TA value of the TA group is specifically configured to determine that the identifier of the TA group received by the receiving module 50 is the identifier of the configured TA group, and the TA value of the configured TA group is used as the added cell.
  • the TA value corresponding to the TA group; or, the obtaining module 52 determines that the identifier of the TA group received by the receiving module 50 is not the identifier of the already configured TA group, and initiates
  • the UE in this embodiment further includes a sending module, which is triggered by the configuration module 51, and is configured to send a configuration response message to the base station after the configuration module 51 configures the cell corresponding to the identifier of the added cell as the cell of the UE.
  • a sending module which is triggered by the configuration module 51, and is configured to send a configuration response message to the base station after the configuration module 51 configures the cell corresponding to the identifier of the added cell as the cell of the UE.
  • FIG. 13 is a schematic structural diagram of a UE according to Embodiment 13 of the present invention.
  • the UE in this embodiment may specifically include: a receiving module 60, a modifying module 61, and an obtaining module 62.
  • the receiving module 60 is configured to: when the TA group to which the cell of the UE belongs changes, the receiving request information sent by the base station to modify the TA group to which the cell belongs from the first TA group to the second TA group.
  • the modification module 61 is connected to the receiving module 60.
  • the modifying module 61 is configured to modify the TA group to which the cell belongs from the first TA group to the second TA group according to the modification request information received by the receiving module 60.
  • the obtaining module 62 is connected to the modifying module 61, and the obtaining module 62 is configured to acquire the modifying module 61.
  • the modified TA value of the second TA group is configured to: when the TA group to which the cell of the UE belongs changes, the receiving request information sent by the base station to modify the TA group to which the cell belongs from the first TA group to the second TA group.
  • the modification module 61 is connected to the receiving module 60.
  • the modifying module 61 is configured to modify the TA group to which the
  • the method for implementing the update of the TA value by using the above-mentioned module is the same as the implementation of the related method embodiment.
  • the method for implementing the update of the TA value by using the above-mentioned module is the same as the implementation of the related method embodiment.
  • the UE in this embodiment can effectively update the TA value of the changed UE in time and accurately when the TA group of the UE changes, which greatly facilitates the subsequent uplink sent according to the TA value.
  • the signal can reach the base station.
  • the receiving module 60 in the foregoing embodiment is specifically configured to: when the TA group to which the cell of the UE belongs changes, receive the modification request information sent by the base station, where the modification request information carries the identifier of the cell and the cell to which the cell belongs. The identity of the second TA group.
  • the receiving module 60 is specifically configured to: when the timing advance group to which the cell of the UE belongs changes, receive the modification request information sent by the base station, where the modification request information carries the identifier of the second timing advance group to which the cell belongs .
  • the obtaining module 62 of the foregoing embodiment is specifically configured to: when the modification request information received by the receiving module 60 further carries the adjustment information, obtain the adjustment information from the modification request information; acquire the second TA according to the adjustment information.
  • the TA value of the group is specifically configured to: when the modification request information received by the receiving module 60 further carries the adjustment information, obtain the adjustment information from the modification request information; acquire the second TA according to the adjustment information. The TA value of the group.
  • the obtaining module 62 of the foregoing embodiment is specifically configured to initiate a random access procedure on the cell to obtain the TA value of the second TA group to which the cell belongs from the base station.
  • FIG. 14 is a schematic structural diagram of a communication system according to Embodiment 14 of the present invention. As shown in FIG. 14, the communication system of this embodiment may specifically include: a base station 70 and a UE 71.
  • the base station 70 is configured to: when the TA value of the TA group of the UE 71 needs to be adjusted, select a cell from the TA group; and send a TA command to the UE 71 on the selected cell, where the TA command carries the adjustment information.
  • the UE 71 is configured to receive the TA command sent by the base station 70 on the cell, and modify the TA value of the TA group to which the cell belongs according to the adjustment information.
  • the base station 70 and the UE 71 in the communication system of the present embodiment may use the update processing of the related implementation values, and the details of the foregoing related embodiments may be referred to, and details are not described herein again.
  • the communication system of the embodiment can effectively update the TA value of the updated UE in time and accurately when the TA value of the TA group of the UE is updated, which greatly facilitates the subsequent uplink sent according to the TA value.
  • the signal can reach the base station.
  • FIG. 15 is a schematic structural diagram of a communication system according to Embodiment 15 of the present invention. As shown in FIG. 15, the communication system of this embodiment may specifically include: a base station 80 and a UE 81.
  • the base station 80 is configured to send a configuration message to the UE 81, where the configuration message carries the identifier of the added cell, and broadcasts the identifier of the TA group to which the added cell belongs in the system message of the added cell.
  • the UE 81 is configured to receive the configuration message sent by the base station 80; and receive the system message of the added cell broadcasted by the base station 80; and obtain the TA group to which the added cell belongs according to the identifier of the TA group and the identifier of the configured TA group. TA value.
  • the base station 80 and the UE 81 in the communication system of the present embodiment may use the update processing of the foregoing related implementation values, and the details of the foregoing related embodiments may be referred to, and details are not described herein again.
  • the communication system of the embodiment can effectively update the TA value of the TA group of the added cell in time and accurately when the cell is added to the UE, which greatly facilitates the subsequent arrival of the uplink signal sent according to the TA value.
  • Base station can effectively update the TA value of the TA group of the added cell in time and accurately when the cell is added to the UE, which greatly facilitates the subsequent arrival of the uplink signal sent according to the TA value.
  • FIG. 16 is a schematic structural diagram of a communication system according to Embodiment 16 of the present invention. As shown in FIG. 16, the communication system of this embodiment may specifically include: a base station 90 and a UE 91.
  • the base station 90 is configured to determine that the timing advance group to which the cell of the UE 91 belongs is modified by the first TA group to The second TA group; sends a modification request message to the UE 91.
  • the UE 91 is configured to receive the modification request information sent by the base station 90, and modify the TA group to which the cell belongs from the first TA group to the second TA group according to the modification request information; and acquire the TA value of the second TA group.
  • the base station 90 and the UE 91 in the communication system of the present embodiment may use the update processing of the foregoing related implementation values, and the details of the foregoing related embodiments may be referred to, and details are not described herein.
  • the communication system of the embodiment can effectively update the TA value of the updated TA group in time and accurately when the TA group of the UE is updated, which greatly facilitates the subsequent uplink signal sent according to the TA value. Arrived at the base station.
  • the device embodiments described above are merely illustrative, wherein the units illustrated as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, ie may be located in one place. , or it can be distributed to at least two network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment. Those of ordinary skill in the art can understand and implement without deliberate labor.

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Abstract

本发明提供一种定时提前值的更新处理方法、基站、用户设备及系统。定时提前值的更新处理方法,包括:当用户设备的定时提前组的定时提前值需要调整时,从所述定时提前组中选择小区;在所述小区上向所述用户设备发送定时提前命令,所述定时提前命令中携带调整信息;所述调整信息用以供所述用户设备根据所述调整信息修改所述定时提前组的定时提前值。本实施例的技术方案,能够保证对TA值更新处理过程中信令开销较低;且能够有效地实现对UE中的TA进行更新和维护。

Description

定时提前值的更新处理方法、 基站、 用户设备及系统 本申请要求于 2011年 3月 21 日提交的, 申请号为 201110067704.7,发明 名称为 "定时提前值的更新处理方法、 基站、 用户设备及系统" 的中国申请 的优先权, 其全部内容通过引用结合在本申请中。 技术领域 本发明实施例涉及通信技术领域, 尤其涉及一种定时提前值的更新处 理方法、 基站、 用户设备及系统。
背景技术
在通信系统中, 如在长期演进 ( Long Term Evolution; 以下筒称 LTE )通 信系统中, 为了保证演进基站 ( Evolution Node B; 以下筒称 eNB )所服务的 用户设备 ( User Equipment; 以下筒称 UE )发送的上行信号能够同步到达基 站, 如 eNB, 在上行传输过程中, eNB会根据上行信号的偏移情况为所服务 的 UE调整对应的定时提前( Timing Advance; 以下筒称 TA )值。
在通信系统中, 如 LTE系统, 可以具有载波聚合 ( Carrier Aggregation; 以下筒称 CA )特性, 一个 UE可以将多个小区进行聚合以与基站, 如 eNB, 通信。 UE的上行信号可以通过不同小区发送到 eNB, 但是经过不同小区的传 输的路径长度可能不相同。 例如, 通过某些小区的时候可能需要经过频选中 继器(Repeater ), 而经过另一些小区可能不需要通过。 通常情况下, 将该 UE 对应的具有相同 TA值的小区称为是一个 TA组。 该 UE聚合的多个小区可以 属于不同的 TA组。 通常情况下, 在 UE的内存中会存储该 UE的 TA信息表, 其中该 TA信息表包括该 UE的各个 TA组标识、 以及该各个 TA组标识对应 的 TA组中包括的小区标识和对应的该各个 TA组的 TA值。
在 UE的使用过程中,在多种场景下, UE如何更新 UE的 TA组的 TA值 是现有技术中亟需解决的一个技术问题。 发明内容 本发明实施例提供的定时提前值的更新处理方法、 基站、 用户设备及 系统, 用于在用户设备的定时提前组或者定时提前组的定时提前值发生变 化时, 更新对应的定时提前组对应的定时提前值。
根据本发明的一个方面, 一种定时提前值的更新处理方法, 包括: 当用户设备的定时提前组的定时提前值需要调整时, 从所述定时提前 组中选择小区;
在所述小区上向所述用户设备发送定时提前命令, 所述定时提前命令 中携带调整信息; 所述调整信息用以供所述用户设备根据所述调整信息修 改所述定时提前组的定时提前值。
根据本发明的一个方面, 一种定时提前值的更新处理方法, 包括: 向所述用户设备发送配置消息, 所述配置消息中携带增加的小区的标 识, 以供所述用户设备根据所述增加的小区的标识为所述用户设备配置所 述增加的小区;
在所述增加的小区的系统消息中广播所述增加的小区所属的定时提前 组的标识, 以供所述用户设备获取所述定时提前组的标识, 并根据所述定 时提前组的标识和所述用户设备的已经配置的定时提前组的标识, 获取所 述增加的小区所属的定时提前组的定时提前值。
根据本发明的一个方面, 一种定时提前值的更新处理方法, 包括: 确定用户设备的小区所属的定时提前组由第一定时提前组修改为第二 定时提前组;
向所述用户设备发送修改请求消息, 所述修改请求消息以供所述用户 设备根据所述修改请求信息, 将所述小区所属的定时提前组由所述第一定 时提前组修改为所述第二定时提前组, 并获取所述第二定时提前组的定时 提前值。
根据本发明的一个方面, 一种定时提前值的更新处理方法, 包括: 接收基站在定时提前组中的小区上发送的定时提前命令, 所述定时提 前命令中携带调整信息;
根据所述调整信息修改所述小区所属的所述定时提前组的定时提前 值。
根据本发明的一个方面, 一种定时提前值的更新处理方法, 包括: 接收基站发送的配置消息, 所述配置消息中携带增加的小区的标识, 根据所述增加的小区的标识配置所述增加的小区;
接收所述基站广播的所述增加的小区的系统消息, 所述系统消息中携 带所述增加的小区所属的定时提前组的标识;
根据所述定时提前组的标识和已经配置的定时提前组的标识, 获取所 述增加的小区所属的定时提前组的定时提前值。
根据本发明的一个方面, 一种定时提前值的更新处理方法, 包括: 当小区所属的定时提前组发生变化时,接收基站发送的修改请求信息, 所述修改请求信息用于将所述小区所属的定时提前组由第一定时提前组修 改为第二定时提前组;
根据所述修改请求信息, 将所述小区所属的定时提前组由第一定时提 前组修改为第二定时提前组;
获取所述第二定时提前组的定时提前值。
根据本发明的一个方面, 提供一种基站, 包括:
选择模块, 用于当用户设备的定时提前组的定时提前值需要调整时, 从所述定时提前组中选择小区;
发送模块, 用于在所述选择模块选择的所述小区上向所述用户设备发 送定时提前命令, 所述定时提前命令中携带调整信息; 所述调整信息用以 供所述用户设备根据所述调整信息修改所述定时提前组的定时提前值。
根据本发明的一个方面, 提供一种基站, 包括:
发送模块, 用于向所述用户设备发送配置消息, 所述配置消息中携带 增加的小区的标识, 以供所述用户设备根据所述增加的小区的标识为所述 用户设备配置所述增加的小区;
广播模块, 用于在所述增加的小区的系统消息中广播所述增加的小区 所属的定时提前组的标识,以供所述用户设备获取所述定时提前组的标识, 并根据所述定时提前组的标识和所述用户设备的已经配置的定时提前组的 标识, 获取所述增加的小区所属的定时提前组的定时提前值。
根据本发明的一个方面, 提供一种基站, 包括:
确定模块, 用于确定用户设备的小区所属的定时提前组由第一定时提 前组修改为第二定时提前组;
发送模块, 用于根据所述确定模块确定的结果, 向所述用户设备发送 修改请求消息, 所述修改请求消息以供所述用户设备根据所述修改请求信 息, 将所述小区所属的定时提前组由所述第一定时提前组修改为所述第二 定时提前组, 并获取所述第二定时提前组的定时提前值。
根据本发明的一个方面, 提供一种用户设备, 包括:
接收模块, 用于接收基站在定时提前组中的小区上发送的定时提前命 令; 所述定时提前命令中携带调整信息;
修改模块, 用于根据所述接收模块接收到的所述定时提前命令中的所 述调整信息修改所述小区所属的所述定时提前组的定时提前值。
根据本发明的一个方面, 提供一种用户设备, 包括:
接收模块, 用于接收基站发送的配置消息, 所述配置消息中携带增加 的小区的标识;
配置模块, 用于根据所述接收模块接收的所述配置消息, 将所述增加 的小区的标识对应的小区配置为所述用户设备的小区;
所述接收模块, 还用于接收所述基站广播的所述增加的小区的系统消 息, 所述系统消息中携带所述增加的小区所属的定时提前组的标识;
获取模块, 用于根据所述接收模块接收的所述定时提前组的标识和已 经配置的定时提前组的标识, 获取所述增加的小区所属的定时提前组的定 时提前值。
根据本发明的一个方面, 提供一种用户设备, 包括:
接收模块, 用于当小区所属的定时提前组发生变化时, 接收基站发送 的用于将所述聚合小区所属的定时提前组由所述第一定时提前组修改为第 二定时提前组的修改请求信息;
修改模块, 用于根据所述接收模块接收的所述修改请求信息, 将所述 小区所属的定时提前组由所述第一定时提前组修改为所述第二定时提前 组;
获取模块, 用于根据所述修改模块将所述小区所属的定时提前组修改 为所述第二定时提前组, 获取所述第二定时提前组的定时提前值。
根据本发明的一个方面, 提供一种通信系统, 包括: 基站和用户设备; 所述基站, 用于当所述用户设备的定时提前组的定时提前值需要调整 时, 从所述定时提前组中选择小区; 在所述小区上向所述用户设备发送定 时提前命令, 所述定时提前命令中携带调整信息;
所述用户设备, 用于接收所述基站在所述小区上发送的所述定时提前 命令, 根据所述调整信息修改所述小区所属的所述定时提前组的定时提前 值。
根据本发明的一个方面, 提供一种通信系统, 包括: 基站和用户设备; 所述基站, 用于向所述用户设备发送配置消息, 所述配置消息中携带 增加的小区的标识, 并在所述增加的小区的系统消息中广播所述增加的小 区所属的定时提前组的标识;
所述用户设备, 用于接收所述基站发送的配置消息, 并接收所述基站 广播的所述增加的小区的系统消息, 根据所述定时提前组的标识和已经配 置的定时提前组的标识, 获取所述增加的小区所属的定时提前组的定时提 前值。
根据本发明的一个方面, 提供一种通信系统, 包括: 基站和用户设备; 所述基站, 用于确定用户设备的小区所属的定时提前组由第一定时提 前组修改为第二定时提前组; 向所述用户设备发送修改请求消息;
所述用户设备, 用于接收所述基站发送的修改请求信息, 根据所述修 改请求信息, 将所述小区所属的定时提前组由所述第一定时提前组修改为 所述第二定时提前组, 并获取所述第二定时提前组的定时提前值。
本发明实施例的定时提前值的更新处理方法、 基站、 用户设备及系统, 当 UE的 ΤΑ组的 ΤΑ值需要调整时,或者当 UE新增加一个小区时或者当 UE 的小区所属 ΤΑ组发生变化时,可以采用本发明实施例的技术方案对上述情况 下的 ΤΑ值进行更新处理。 采用本发明实施例的技术方案, 能够保证对 ΤΑ值 更新处理过程中信令开销较低,且能够有效地实现对 UE中的 ΤΑ进行更新和 维护。 附图说明 、目 、 - ;、 、 , 。- 、 、 、 、 - 、 、 ;、 施例或现有技术描述中所需要使用的附图作一筒单地介绍, 显而易见地, 下 面描述中的附图是本发明的一些实施例, 对于本领域普通技术人员来讲, 在 不付出创造性劳动性的前提下, 还可以根据这些附图获得其他的附图。
图 1为本发明实施例一提供的 ΤΑ值的更新处理方法的流程图。
图 2为本发明实施例二提供的 ΤΑ值的更新处理方法的流程图。
图 3为本发明实施例三提供的 ΤΑ值的更新处理方法的流程图。
图 6为本发明实施例六提供的 ΤΑ值的更新处理方法的流程图。
图 7为本发明实施例七提供的一种通信系统结构示意图。
图 8为本发明实施例八提供的基站的结构示意图。
图 9为本发明实施例九提供的基站的结构示意图。
图 10为本发明实施例十提供的基站的结构示意图。 图 11为本发明实施例十一提供的 UE的结构示意图。
图 12为本发明实施例十二提供的 UE的结构示意图。
图 13为本发明实施例十三提供的 UE的结构示意图。
图 14为本发明实施例十四提供的通信系统的结构示意图。
图 15为本发明实施例十五提供的通信系统的结构示意图。
图 16为本发明实施例十六提供的通信系统的结构示意图。 具体实施方式
为使本发明实施例的目的、 技术方案和优点更加清楚, 下面将结合本 发明实施例中的附图, 对本发明实施例中的技术方案进行清楚、 完整地描 述, 显然, 所描述的实施例是本发明一部分实施例, 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作出创造性劳动前提 下所获得的所有其他实施例, 都属于本发明保护的范围。
对于 TA组的划分有两种技术:一种是将 UE的小区根据该 UE当前的 小区的 TA值的相同或不同来划分 TA组, 称为 UE级的 TA组。 另一种为 小区级的 TA组, 具体可以根据网络部署等情况来为不同的小区划分 TA 组, 此时属于一个 TA组的小区是固定的, 和具体该小区是属于哪个 UE 无关。
图 1为本发明实施例一提供的 TA值的更新处理方法的流程图。 本实 施例的 TA值的更新处理方法的执行主体为基站, 例如 eNB。 如图 1所示, 本实施例的 TA值的更新处理方法, 具体可以包括如下步骤:
步骤 100、 当 UE的 TA组的 TA值需要调整时,从 TA组中选择小区; 步骤 101、 在该小区上向 UE发送 TA命令, 该 TA命令中携带调整信 息; 该调整信息用以供 UE根据该调整信息修改该 TA组的 TA值。
具体地, 当基站识别出 UE的 TA组的 TA值发生了变化, 需要调整 时,基站从该 TA组中选择小区。 然后在选择的小区上向 UE发送 TA命令 ( Command ) 。 该 TA Command中携带有调整信息。 这样, 当 UE通过该 小区接收到该 TA命令时, 便可以从中获取到调整信息, 并根据调整信息 ^ί'爹改该小区所属的 ΤΑ组的 ΤΑ值, 以实现对 UE中 ΤΑ组的 ΤΑ值的有效 的更新和维护。 具体地, 在 UE的内存中可以存储有该 UE的 ΤΑ信息表, 该 ΤΑ信息表中可以包括有该 UE的各个 ΤΑ组的标识、每个 ΤΑ组对应的 小区的标识、 以及每个 ΤΑ组对应的 ΤΑ值等信息。 UE可以根据该 ΤΑ信 息表中的相关信息来发送上行信号。 这里 UE根据调整信息具体可以修改 存储在内存中的该 ΤΑ信息表中的 ΤΑ组的 ΤΑ值, 以供 UE后续根据该 ΤΑ值发送上行信号, 以保证上行信号能够同步到达基站中。
由于 ΤΑ组中的小区分别对应相同 ΤΑ值,所以该小区可以为该 ΤΑ组 中的任意一个小区。 优选地, 为了提高 UE接收 TA Command的成功率, 基站可以选择 TA组中的所有小区中信号最好的小区作为该被选择的小 区。
现有技术中, 当 UE在使用过程中发生移动, UE对应的 TA组的 TA值 发生变化时,基站使用媒体接入控制( Medium Access Control;以下筒称 MAC ) 命令中的 TA command通知 UE更改 TA值, 在 TA Command中携带需要修改 的 TA组标识和爹改的 TA值信息 ,以通知 UE更改该 TA组标识对应的 TA值。 但是在 TA command中携带需要修改的 TA组标识会增加信令的开销。 而且在 R8/9的旧版本的传输模式下的 UE也无法识别该 TA组标识,导致该方案的后 向兼容性较差。
本实施例的 TA值的更新处理方法, 当 UE的 TA组的 TA值需要调整 时, 从 TA组中选择小区; 在小区上向 UE发送定时提前命令, 该 TA命令 中携带有调整信息; 该 TA命令用以供 UE根据调整信息修改小区所属的 TA组的 TA值。 与现有技术中相比, 在对 TA值进行有效地更新的同时, 能够有效地节省信令的开销。 而且采用本实施例的技术方案,不需要对 UE 做任何改进, 后向兼容性较好, 且能够对 UE中的 TA值进行有效地维护。
需要说明的是, 上述实施例中的 TA组中也可以仅仅包括唯——个小 区, 此时每个小区对应一个 TA值。 此时小区即为该 TA组中包括的唯一 的小区。
需要说明的是, 上述实施例中调整信息包括 TA组的 TA值的偏移值 或者 TA组调整后的 TA值。 当调整信息为 TA组的 TA值的偏移值时, UE 可以根据 TA组的 TA值的偏移值与 TA组原来的 TA值, 获取到该 TA组 调整后应该对应的 TA值。 当调整信息为 TA组调整后的 TA值时, UE便 可以直接获取到 TA组调整后的 TA值。
需要说明的是,上述实施例的技术方案中的 UE的 TA组包括 UE级的 TA组或者也可以为小区级的 TA组。
图 2为本发明实施例二提供的 TA值的更新处理方法的流程图。 本实 施例的 TA值的更新处理方法的执行主体为基站, 例如 eNB。 如图 2所示, 本实施例的 TA值的更新处理方法, 具体可以包括如下步骤:
步骤 200、 向 UE发送配置消息, 该配置消息中携带增加的小区的标 识; 该配置消息以供 UE根据增加的小区的标识为 UE配置增加的小区; 步骤 201、 在增加的小区的系统消息中广播增加的小区所属的 TA组 的标识, 以供 UE获取该 TA组的标识, 并根据该 TA组的标识和 UE的已 经配置的 TA组的标识, 获取增加的小区所属的 TA组的 TA值。
具体地, 当基站收到 UE发送的质量报告信息或者其他原因决定为该 UE增加小区时, 基站向 UE发送配置消息, 以请求 UE将该增加的小区的 标识对应的第二小区设置为该 UE的小区,使得该增加的小区能够为该 UE 服务。 除了按照现有技术的方案, 在 UE中设置一些关于该增加的小区的 配置参数之外, 具体地 UE还需要记录该增加的小区的标识, 例如在 UE 的内存中存储的 TA信息表中增加记录该增加的小区的标识。 这样, UE便 可以知道该增加的小区能够为该 UE服务。 也就是说, UE可以根据记录的 增加的小区的标识在对应的小区上接收基站发送的消息, 或者在该增加的 小区的标识对应的小区上发送上行信号。 同时基站在增加的小区中的系统消息中还广播该增加的小区所属的
TA组的标识。 这样, 当 UE可以接收系统消息, 并从中获取到该增加的小 区所属的 TA组的标识。 然后 UE可以 居 TA组标识和该 UE的已经加入 的小区所属的 TA组, 获取增加的小区所属的 TA组的 TA值。
例如当增加的小区所属的 TA组的标识与该 UE已经配置的 TA组的标 识相同, 说明新增加的小区属于该 UE已经配置该 TA组, 增加小区的所 属 TA组的 TA值与该 UE已配置的 TA组的 TA值相同。 当增加的小区的 TA组的标识与该 UE已经配置的所有 TA组的标识不相同时, 说明该增加 的小区属于一个新的 TA组, 此时 UE可以在该增加的小区上发起随机接 入( Random Access; 以下筒称 RACH )过程, 以向基站请求获取该增加的 小区对应的 TA组的 TA值。
本实施例中的配置消息具体可以为 LTE系统中的无线资源控制( Radio Resource Control; 以下筒称 RRC ) 连接重配置消息。
在本实施例中, 可以先执行步骤 200再执行步骤 201 , 也可以先执行 步骤 201再执行步骤 200。
本实施例的 TA值的更新处理方法, 当为 UE增加小区时, 向 UE发送 配置消息, 并在增加小区的系统消息中广播增加的小区所属的 TA组的标 识, 以供 UE获取该增加的小区所属的 TA组的标识, 并根据增加的小区 所属的 TA组的标识和已经设置为该 UE的小区所属的 TA组的,获取增加 的小区所属的 TA组的 TA值。 采用本实施例的技术方案, 能够有效地实 现对新增加的小区的 TA值进行更新, 极大地方便了后续根据该 TA值发 送的上行信号能够到达基站。
现有技术中也可以采用在新增小区的 RRC连接重配置小区中携带该 新增小区所属的 TA组标识, 但是采用该方案会增加信令的开销。 本实施 例的技术方案与该现有方案相比, 能够有效地节省信令开销。
图 3为本发明实施例三提供的 TA值的更新处理方法的流程图。 本实 施例的 TA值的更新处理方法的执行主体为基站, 例如 eNB。 如图 3所示, 本实施例的 TA值的更新处理方法, 具体可以包括:
步骤 300、 确定 UE的小区所属的 TA组由第一 TA组修改为第二 TA 组;
步骤 301、 向 UE发送修改请求消息, 该修改请求消息以供 UE根据修 改请求信息, 将该小区所属的 TA组由第一 TA组修改为第二 TA组; 并获 取第二 TA组的 TA值。
本实施例的应用场景可以为 UE的 TA组为 UE级的 TA组。
本实施例的 TA值的更新处理方法,能够有效地实现当 UE的 TA组发 生变化时, 及时、 准确地对变化后的 UE的 TA值进行更新, 极大地方便 了后续根据该 TA值发送的上行信号能够到达基站。
需要说明的是, 上述实施例中基站向 UE发送修改请求信息, 该修改 请求信息中携带有小区的标识和该小区所属的第二 TA组的标识。 或者基 站还可以直接在该小区上向 UE发送修改请求信息, 此时该修改请求信息 中不需要携带有小区的标识, 可以仅携带有该小区所属的第二 TA组的标 识。本实施例中的修改请求信息是供 UE将小区所属的 TA组由第一 TA组 修改为第二 TA组。 具体地, UE可以通过将存储在 UE内存中的 TA信 息表中的该小区所属的 TA组的标识由第一 TA组的标识修改为第二 TA组 的标识, 以供 UE对该小区的 TA组信息进行管理。
例如当 UE识别出一个小区的 TA组发生变化, 比如, 一个小区属于 TA组 X , 之前不经过 repeater变成经过 repeater, 则该小区不能和之前同 一个 TA组的其他小区共享 TA, 从而由属于 TA组 X变成属于一个新的 TA组y。 此时 UE向基站发送质量检测报告, 基站向 UE发送修改请求消 息, 具体地也可以称为 TA group change commando 在 LTE系统中, 可以 为基站向 UE发送的 MAC命令或 RRC消息,用于通知 UE TA组的变化情 况。具体地基站向 UE发送的 TA group change command中可以为携带有该 小区的标识和该小区所属的新的 TA组 y的标识, 以供 UE将该小区对应 的 TA组更新为 TA组 Y。 或者基站具体在该小区上向 UE发送 TA group change command, 此时 TA group change command中可以仅携带有该小区 所属的新的 TA组 y的标识,以供 UE将内存中的 TA信息表中的该小区对 应的 TA组的标识更新为 TA组 Y的标识, 以实现对该小区对应的 TA组 进行更新。
图 4为本发明实施例四提供的 TA值的更新处理方法的流程图。 如图 4所示, 本实施例的 TA值的更新处理方法的执行主体为 UE。 本实施例的 TA值的更新处理方法, 具体可以包括如下:
步骤 400、 接收基站在 TA组中的小区上发送的 TA Command; 该 TA Command中携带有调整信息;
步骤 401、 根据该调整信息修改该小区所属的 TA组的 TA值。
具体地,可以是 UE根据该调整信息修改存储在 UE的内存中的 TA信 息表中该小区所属的 TA组的 TA值。
本实施例在 UE—侧描述本发明的技术方案, 具体与上述实施例一所 述的技术方案相对应, 详细可以参考上述实施例一所述的技术方案, 在此 不再赘述。
本实施例的 TA值的更新处理方法, 通过接收基站在 TA组中的小区 上发送的 TA Command; 该 TA Command中携带有调整信息; 根据调整信 息修改小区所属的 TA组的 TA值。 与现有技术中的在 TA Command中携 带需要修改的 TA组标识和修改的 TA值信息的技术方案相比,在对 TA值 进行有效地更新的同时, 能够有效地节省信令的开销。 而且采用本实施例 的技术方案, 不需要对 UE做任何改进, 后向兼容性较好。
需要说明的是, 上述实施例中该小区可以为该 T A组中的任意一个小 区。 优选地, 为了提高 UE接收 TA Command的成功率,基站可以选择 TA 组中的所有小区中信号最好的小区作为小区。 需要说明的是, 上述实施例中调整信息为 TA组的 TA值的偏移值或 者 TA组调整后的 TA值。 当调整信息为 TA组的 TA值的偏移值时, UE 可以根据 TA组的 TA值的偏移值与 TA组原来的 TA值, 获取到该 TA组 调整后应该对应的 TA值。 当调整信息为 TA组调整后的 TA值时, UE便 可以直接获取到 TA组调整后的 TA值。
需要说明的是, 上述实施例的技术方案中的 UE的 TA组为 UE级的 TA组或者也可以为小区级的 TA组。
图 5为本发明实施例五提供的 TA值的更新处理方法的流程图。 本实 施例的 TA值的更新处理方法的执行主体为 UE。 如图 5所示, 本实施例的 TA值的更新处理方法, 具体可以包括如下:
步骤 500、 接收基站发送的配置消息, 该配置消息中携带有需要增加 的小区的标识;
UE可以根据增加的小区的标识配置增加的小区。 本实施例中涉及到 的基站例如可以为 eNB。
步骤 501、 接收基站广播的增加的小区的系统消息; 该系统消息中携 带有增加的小区所属的 TA组的标识;
步骤 502、 根据 TA组的标识和该 UE已经配置的 TA组的标识, 获取 增加的小区所属的 TA组的 TA值。
本实施例的应用场景可以为 UE 的 TA组为小区级的 TA组。 本实施 例在 UE—侧描述本发明的技术方案, 具体与上述实施例二所述的技术方 案相对应, 详细可以参考上述实施例二所述的技术方案, 在此不再赘述。
本实施例的 TA值的更新处理方法, 能够有效地实现对新增加的小区 的 TA值进行更新, 极大地方便了后续根据该 TA值发送的上行信号能够 到达基站。与现有技术中采用在新增小区的 RRC连接重配置小区中携带该 新增小区所属的 TA组标识的技术方案相比, 能够有效地节省信令开销。
可选地, 上述实施例中,根据 TA组的标识和该 UE已经配置的 TA组 的标识, 获取增加的小区所属的 TA组的 TA值, 具体可以包括如下:
( 1 ) UE判断增加的小区对应的 TA组的标识是否属于该 UE已经配 置的 TA组的标识; 在一个实施例中, 当属于时, 执行步骤(2 ) ; 在一个 实施例中, 否则, 当不属于时, 执行步骤 (3 ) ;
( 2 ) 该 UE已经配置的 TA组的 TA值为增加的小区所属的 TA组对 应的 TA值;
( 3 ) 在增加的小区上发起 RACH过程以从基站上获取增加的小区所 属的 TA组的 TA值。
具体地, UE判断增加的小区对应的 TA组的标识是否属于该 UE已经 配置的 TA组的标识过程, 也可以称为判断是否需要发起 RACH的过程。 在该增加的小区加入之前, 该 UE可能已经聚合了多个小区, 这多个小区 已经配置为 UE的小区,已经配置为 UE的多个小区可能所属不同的 TA组。 这里即是判断 TA组的标识是否与该 UE已经配置的 TA组的标识相同。当 相同时, 说明该增加的小区所属的 TA组的标识与该 UE已经存在的某一 TA组的标识相同, 具有相同的 TA值, 此时 UE不需要发起 RACH过程, 与该 TA组的标识相同的 TA组的 TA值即为该第二 TA组的 TA值。 当增 加的小区的 TA组的标识与该 UE已经配置的 TA组的标识都不相同,该增 加的小区所属的 TA组即为一个新加入的 TA组, 向基站发起 RACH过程 请求获取该增加的小区所属的 TA组的 TA值。
需要说明的是, 在上述实施例的步骤 501与步骤 502之间, 或者步骤 502之后, 还可以包括:
( a ) UE根据步骤 500中的配置消息, 将增加的小区的标识对应的小 区设置为 UE的小区;
( b ) UE向基站发送增加响应消息。 具体地在 LTE系统中是 RRC连 接重配置完成的响应信息。
具体地, UE将增加的小区的标识对应的小区设置为 UE的小区时, 除 了按照现有技术的方案, 在 UE中设置一些关于该增加的小区的配置参数 之外, UE还需要记录该增加的小区的标识, 例如在 UE的内存中存储的 TA信息表中增加记录该增加的小区的标识。 这样, UE便可以知道该增加 的小区能够为该 UE服务。 也就是说, UE可以根据记录的增加的小区的标 识在对应的增加的小区上接收基站发送的消息, 或者在该增加的小区的标 识在对应的增加的小区上发送上行信号。
图 6为本发明实施例六提供的 TA值的更新处理方法的流程图。 本实 施例的 TA值的更新处理方法的执行主体为 UE。 如图 6所示, 本实施例的 TA值的更新处理方法, 具体可以包括如下:
步骤 600、 当 UE的小区所属的 TA组发生变化时, 接收基站发送的修 改请求信息;
具体地该修改请求信息即用于将小区所属的 TA组由第一 TA组修改 为第二 TA组。
步骤 601、 根据修改请求信息, 将第一小区所属的 TA组由第一 T A 组修改为第二 TA组;
步骤 602、 获取第二 TA组的 TA值。
本实施例的应用场景可以为 UE 的 TA组为 UE级的 TA组。 本实施 例在 UE—侧描述本发明的技术方案, 具体与上述实施例三所述的技术方 案相对应, 详细可以参考上述实施例三所述的技术方案, 在此不再赘述。
本实施例的 TA值的更新处理方法,能够有效地实现当 UE的 TA组发 生变化时, 及时、 准确地对变化后的 UE的 TA值进行更新, 极大地方便 了后续根据该 TA值发送的上行信号能够到达基站。
需要说明的是, 上述实施例中, UE接收基站发送的用于将小区所属 的 TA组由第一 TA组修改为第二 TA组的修改请求信息, 具体可以为: 该 UE接收基站发送的修改请求信息, 此时该修改请求信息中携带有第一小 区的标识和更新后小区所属的第二 TA组的标识, 用以供 UE将小区的标 识对应的小区所属的 TA组由属于第一 TA组修改为属于第二 TA组;例如 可以将 UE的内存中存储的 TA信息表中的第一小区所属的 TA组的标识修 改为第二 TA组的标识。 或者也可以为该 UE在小区上接收基站发送的修 改请求信息, 此时该修改请求信息中携带有更新后小区所属的第二定时提 前组的标识。 由于 UE在小区上接收到修改请求信息, UE可以知道该修改 请求信息是用以修改该小区所属的 TA组, 具体将该小区所属的 TA组修 改为第二 T A组;例如可以将 UE的内存中存储的 T A信息表中的小区所属 的 TA组的标识由第一 TA组的标识修改为第二 TA组的标识。
需要说明的是, 上述步骤 600中同时还可以携带有调整信息, 该调整 信息为第二 TA组相对于第一 TA组的 TA偏移值或者第二 TA前组的 TA 值。 此时可以包括如下步骤:
(a)从修改请求信息中获取调整信息;
(b)根据调整信息获取 TA组的 TA值。
例如, 当该调整信息为第二 TA组相对于第一 TA组的 TA偏移值时, 根据第二 TA组相对于第一 TA组的 TA偏移值与第一 TA组的 TA值, 便 可以获取到第二 TA组的 TA值。 该调整信息为第二 TA前组的 TA值时, 便可以直接获取到该第二 TA组的 TA值。
在一个实施例中, 当上述步骤 500中未携带有调整信息时, 或携带有 调整信息时, 此时可以包括如下步骤: 在小区中发起 RACH过程获取更新 后小区所属的第二 TA组的 TA值。
采用上述技术方案, 能够有效地实现当 UE的 TA组发生变化时, 及 时、 准确地对变化后的 UE的 TA值进行更新, 极大地方便了后续根据该 TA值发送的上行信号能够到达基站。
如图 7所示为本发明实施例七提供的一种通信系统结构示意图。 如图 7所示,本实施例的 UE有 4个小区,其中 Celll和 Cell2共享 TA值, Celll 和 Cell2属于 TA groupl。 Cell3和 Cell4共享 TA值, Cell3和 Cell4属于 TA group2„ 如果 TA group2的 TA值发生变化, 则可以在 cell3和 cell4中 选择一个小区(比如选择 ce113 )发送 TA command用来供 UE修改 TA group2 的 TA值, 该 TA command携带需要修改的 TA group2的 TA偏移值, 或 者直接携带该 TA group2修改后的 TA值。 这里以 TA command携带需要 修改的 TA group2的 TA偏移值为例。 当 UE在 Cell3上接收到小区的 TA command, 然后根据 TA command中的 TA偏移值修改 Cell3所属的 TA组 的 TA值。也就是修改该 TA组下所有的小区的 TA值。如图 6, UE在 cell3 上收到 TA command,则修改 TA group2的 TA值,也就是修改 cell3和 cell4 的 TA值。
采用上述实施例的技术方案, 相对于现有技术, 减少了空口开销, 也 不需要修改当前 TA command结构, 能够实现后向兼容。
本领域普通技术人员可以理解: 实现上述方法实施例的全部或部分步 骤可以通过程序指令相关的硬件来完成, 前述的程序可以存储于一计算机 可读取存储介质中, 该程序在执行时, 执行包括上述方法实施例的步骤; 而前述的存储介质包括: ROM、 RAM, 磁碟或者光盘等各种可以存储程序 代码的介质。
图 8为本发明实施例八提供的基站的结构示意图。 如图 8所示, 本实 施例的基站, 具体可以包括: 选择模块 10和发送模块 11。
其中选择模块 10用于当 UE的 TA组的 TA值需要调整时, 从 TA组 中选择小区。发送模块 11与选择模块 10连接,发送模块 11用于在选择模 块 10选择的小区上向 UE发送 TA命令, 该 TA命令中携带有调整信息; 该调整信息用以供 UE根据调整信息修改该 TA组的 TA值。
本实施例的基站, 通过采用上述模块实现 TA值的更新处理方法与上 述相关方法实施例的实现机制相同, 详细可以参考上述相关方法实施例的 记载, 在此不再赘述。
本实施例的基站,通过采用上述模块实现当 UE的 TA组的 TA值需要 调整时, 从 TA组中选择小区; 在小区上向 UE发送定时提前命令, 该 TA 命令中携带有调整信息; 该 T A命令用以供 UE根据调整信息修改小区所 属的 TA组的 TA值。 与现有技术中相比, 在对 TA值进行有效地更新的同 时, 能够有效地节省信令的开销。 而且采用本实施例的技术方案, 不需要 对 UE做任何改进,后向兼容性较好, 且能够对 UE中的 TA值进行有效地 维护。
需要说明的是, 上述实施例中的选择模块 10具体用于当 UE的 TA组 的 TA值需要调整时, 从 TA组中选择通信信号最好的小区作为该小区。
关于该基站的其他结构和功能, 可以参见上述相应方法实施例中的描 述。
图 9为本发明实施例九提供的基站的结构示意图。 如图 9所示, 本实 施例的基站, 具体可以包括: 发送模块 20和广播模块 21。
发送模块 20用于向 UE发送配置消息,该配置消息中携带有增加的小 区的标识, 以供 UE根据增加的小区的标识为 UE的配置增加的小区。 广 播模块 21用于在增加的小区的系统消息中广播增加的小区所属的 TA组的 标识, 以供 UE获取该 TA组的标识, 并根据 TA组的标识和 UE的已经配 置的 TA组的标识, 获取增加的小区所属的 TA组的 TA值。
本实施例中所涉及到的 UE的 TA组可以为小区级的 TA组。
本实施例的基站, 通过采用上述模块实现 TA值的更新处理方法与上 述相关方法实施例的实现机制相同, 详细可以参考上述相关方法实施例的 记载, 在此不再赘述。
本实施例的基站, 通过采用上述模块实现当为 UE增加小区时, 向 UE发 送配置消息,并在增加小区的系统消息中广播增加的小区所属的 TA组的标识, 以供 UE获取该增加的小区所属的 TA的标识, 并根据增加的小区所属的 TA 组的标识和该 UE的已经配置的 TA组的标识, 获取增加的小区所属的 TA组 的 TA值。 采用本实施例的技术方案, 能够有效地实现对新增加的小区的 TA 值进行更新, 极大地方便了后续根据该 TA值发送的上行信号能够到达基站。 关于该基站的其他结构和功能, 可以参见上述相应方法实施例中的描 述。
图 10为本发明实施例十提供的基站的结构示意图。 如图 10所示, 本 实施例的基站, 具体可以包括: 确定模块 30和发送模块 31。
确定模块 30用于确定 UE的小区所属的 TA组由第一 TA组修改为第 二 TA组。 发送模块 31与确定模块 30连接, 发送模块 31用于根据确定模 块 30确定的结果, 向 UE发送修改请求消息, 所述修改请求消息以供 UE 根据该修改请求信息,将小区所属的 TA组由第一 TA组修改为第二 TA组, 并获取第二 TA组的 TA值。
本实施例的基站, 通过采用上述模块实现 TA值的更新处理方法与上 述相关方法实施例的实现机制相同, 详细可以参考上述相关方法实施例的 记载, 在此不再赘述。
本实施例的基站, 通过采用上述模块能够有效地实现当 UE的 TA组 发生变化时, 及时、 准确地对变化后的 UE的 TA值进行更新, 极大地方 便了后续根据该 TA值发送的上行信号能够到达基站。
需要说明的是, 本实施例的发送模块 31用于根据确定模块 30确定的 结果, 向 UE发送修改请求消息, 该修改请求消息中携带小区的标识和第 二定时提前组的标识; 该修改请求信息用于 UE根据 g该修改请求消息将 小区所属 TA组由第一 TA组修改为第二 TA组, 并获取第二 TA组的 TA 值。
或者该发送模块 31具体用于根据确定模块 30确定的结果, 在该小区 上向 UE发送修改请求信息, 该修改请求信息中携带第二 TA组的标识; 该修改请求信息用于 UE根据该修改请求消息将小区所属 TA组由第一 TA 组修改为第二 TA组, 并获取第二 TA组的 TA值。
关于该基站的其他结构和功能, 可以参见上述相应方法实施例中的描 述。
图 11为本发明实施例十一提供的 UE的结构示意图。 如图 11所示, 本实施例的 UE, 具体可以包括: 接收模块 40和修改模块 41。
其中接收模块 40用于收基站在 TA组中的小区上发送的 TA命令; 该 TA命令中携带调整信息。 修改模块 41与接收模块 40连接, 修改模块 41 用于根据接收模块 40接收的 TA命令中的调整信息修改小区所属的 TA组 的 TA值。
本实施例的 UE,通过采用上述模块实现 TA值的更新处理方法与上述 相关方法实施例的实现机制相同, 详细可以参考上述相关方法实施例的记 载, 在此不再赘述。
本实施例的 UE,通过采用上述模块实现通过接收基站在 TA组中的小 区上发送的 TA Command; 该 TA Command中携带有调整信息; 根据调整 信息修改小区所属的 TA组的 TA值。 与现有技术中的在 TA Command中 携带需要修改的 TA组标识和修改的 TA值信息的技术方案相比, 在对 TA 值进行有效地更新的同时, 能够有效地节省信令的开销。 而且采用本实施 例的技术方案, 不需要对 UE做任何改进, 后向兼容性较好。
关于该 UE的其他结构和功能, 可以参见上述相应方法实施例中的描 述。
图 12为本发明实施例十二提供的 UE的结构示意图。 如图 12所示, 本实施例的 UE, 具体可以包括: 接收模块 50、 配置模块 51和获取模块 52。
其中接收模块 50用于接收基站发送的配置消息,该配置消息中携带有 增加的小区的标识。 配置模块 51与接收模块 50连接, 配置模块 51用于根 据接收模块 50接收的配置消息, 将增加的小区的标识对应的小区配置为 UE的小区。 接收模块 50还用于接收基站广播的增加的小区的系统消息; 该系统消息中携带增加的小区所属的 TA组的标识。获取模块 52与接收模 块 50连接,获取模块 52用于根据接收模块 50接收的 TA组的标识和已经 配置的 TA组的标识, 获取增加的小区所属的 TA组的 TA值。
本实施例的 UE,通过采用上述模块实现 TA值的更新处理方法与上述 相关方法实施例的实现机制相同, 详细可以参考上述相关方法实施例的记 载, 在此不再赘述。
本实施例的 UE,通过采用上述模块能够有效地实现对新增加的小区的 TA 值进行更新, 极大地方便了后续根据该 TA值发送的上行信号能够到达基站。
需要说明的是, 上述实施例中的获取模块 52具体用于确定接收模块 50接收的 TA组的标识为已经配置的 TA组的标识, 将已经配置的 TA组 的 TA值作为增加的小区所属的 TA组对应的 TA值; 或, 获取模块 52确 定接收模块 50接收的 TA组的标识不是已经配置的 TA组的标识, 在增加 的小区上发起随机接入过程以从基站上获取增加的小区所属的 TA组的 TA 值。
本实施例的 UE中还包括发送模块,该发送模块受配置模块 51的触发, 用于在配置模块 51将增加的小区的标识对应的小区配置为 UE的小区之 后, 向基站发送配置响应消息。
关于该 UE的其他结构和功能, 可以参见上述相应方法实施例中的描 述。
图 13为本发明实施例十三提供的 UE的结构示意图。 如图 13所示, 本实施例的 UE, 具体可以包括: 接收模块 60、 修改模块 61和获取模块 62。
其中接收模块 60用于当 UE的小区所属的 TA组发生变化时, 接收基 站发送的用于将小区所属的 TA组由第一 TA组修改为第二 TA组的修改请 求信息。修改模块 61与接收模块 60连接,修改模块 61用于根据接收模块 60接收的修改请求信息,将小区所属的 TA组由第一 TA组修改为第二 TA 组。 获取模块 62与修改模块 61连接, 获取模块 62用于获取修改模块 61 修改后的第二 TA组的 TA值。
本实施例的 UE,通过采用上述模块实现 TA值的更新处理方法与上述 相关方法实施例的实现机制相同, 详细可以参考上述相关方法实施例的记 载, 在此不再赘述。
本实施例的 UE, 通过采用上述模块能够有效地实现当 UE的 TA组发 生变化时, 及时、 准确地对变化后的 UE的 TA值进行更新, 极大地方便 了后续根据该 TA值发送的上行信号能够到达基站。
需要说明的是,上述实施例中的接收模块 60具体用于当 UE的小区所 属的 TA组发生变化时, 接收基站发送的该修改请求信息, 该修改请求信 息中携带小区的标识和小区所属的第二 TA组的标识。
或者接收模块 60具体用于当 UE的小区所属的定时提前组发生变化 时, 在该小区上接收基站发送的修改请求信息, 该修改请求信息中携带所 述小区所属的第二定时提前组的标识。
需要说明的是, 上述实施例的获取模块 62具体用于当接收模块 60接 收的修改请求信息中还携带调整信息时, 从该修改请求信息中获取该调整 信息; 根据该调整信息获取第二 TA组的 TA值。
需要说明的是,上述实施例的获取模块 62具体用于在该小区上发起随 机接入过程以从基站上获取小区所属的第二 TA组的 TA值。
关于该 UE的其他结构和功能, 可以参见上述相应方法实施例中的描 述。
图 14为本发明实施例十四提供的通信系统的结构示意图。 如图 14所 示, 本实施例的通信系统, 具体可以包括: 基站 70和 UE71。
基站 70用于当 UE71的 TA组的 TA值需要调整时, 从 TA组中选择 小区; 在选择的小区上向 UE71发送 TA命令, 该 TA命令中携带有调整信 息。 UE71用于接收基站 70在小区上发送的 TA命令; 根据调整信息修改 小区所属的 TA组的 TA值。 本实施例的通信系统中的基站 70和 UE71分别可以采用上述相关实施 值的更新处理, 详细可以参考上述相关实施例的记载, 在此不再赘述。
本实施例的通信系统,能够有效地实现当 UE的 TA组的 TA值发生更 新时, 及时、 准确地对更新后的 UE的 TA值进行更新, 极大地方便了后 续根据该 TA值发送的上行信号能够到达基站。
关于该系统的其他结构和功能, 可以参见上述相应方法实施例中的描 述。
图 15为本发明实施例十五提供的通信系统的结构示意图。 如图 15所 示, 本实施例的通信系统, 具体可以包括: 基站 80和 UE81。
基站 80用于向 UE81发送配置消息,该配置消息中携带增加的小区的 标识; 并在该增加的小区的系统消息中广播增加的小区所属的 TA组的标 识。 UE81用于接收基站 80发送的配置消息; 并接收该基站 80广播的增 加的小区的系统消息; ^^据该 T A组的标识和已经配置的 T A组的标识, 获取增加的小区所属的 TA组的 TA值。
本实施例的通信系统中的基站 80和 UE81分别可以采用上述相关实施 值的更新处理, 详细可以参考上述相关实施例的记载, 在此不再赘述。
本实施例的通信系统, 能够有效地实现当为 UE增加小区时, 及时、 准确地对增加的小区的 TA组的 TA值进行更新, 极大地方便了后续根据 该 TA值发送的上行信号能够到达基站。
关于该系统的其他结构和功能, 可以参见上述相应方法实施例中的描 述。
图 16为本发明实施例十六提供的通信系统的结构示意图。 如图 16所 示, 本实施例的通信系统, 具体可以包括: 基站 90和 UE91。
基站 90用于确定 UE91的小区所属的定时提前组由第一 TA组修改为 第二 TA组; 向 UE91发送修改请求消息。 UE91用于接收基站 90发送的 修改请求信息; 并根据修改请求信息, 将小区所属的 TA组由第一 TA组 修改为第二 TA组; 获取第二 TA组的 TA值。
本实施例的通信系统中的基站 90和 UE91分别可以采用上述相关实施 值的更新处理, 详细可以参考上述相关实施例的记载, 在此不再赘述。
本实施例的通信系统, 能够有效地实现当为 UE的 TA组发生更新时, 及时、 准确地对更新后 TA组的 TA值进行更新, 极大地方便了后续根据 该 TA值发送的上行信号能够到达基站。
关于该系统的其他结构和功能, 可以参见上述相应方法实施例中的描 述。
以上所描述的装置实施例仅仅是示意性的, 其中作为分离部件说明的 单元可以是或者也可以不是物理上分开的, 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, 或者也可以分布到至少两 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模块来实现 本实施例方案的目的。 本领域普通技术人员在不付出创造性的劳动的情况 下, 即可以理解并实施。
最后应说明的是: 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 书
1、 一种定时提前值的更新处理方法, 其特征在于, 包括:
当用户设备的定时提前组的定时提前值需要调整时, 从所述定时提前组 中选择小区;
在所述小区上向所述用户设备发送定时提前命令, 所述定时提前命令中 携带调整信息; 所述调整信息用以供所述用户设备根据所述调整信息修改所 述定时提前组的定时提前值。
2、 根据权利要求 1所述的方法, 其特征在于, 从所述定时提前组中选择 小区, 包括: 从所述定时提前组中选择通信信号最好的小区作为所述小区。
3、 根据权利要求 1或 2所述的方法, 其特征在于, 所述调整信息包括所 述定时提前组的定时提前值的偏移值或者所述定时提前组调整后的定时提前 值。
4、根据权利要求 1或 2所述的方法, 其特征在于, 所述用户设备的定时 提前组包括用户设备级的定时提前组或者为小区级的定时提前组。
5、 一种定时提前值的更新处理方法, 其特征在于, 包括:
向所述用户设备发送配置消息,所述配置消息中携带增加的小区的标识, 以供所述用户设备根据所述增加的小区的标识为所述用户设备配置所述增加 的小区;
在所述增加的小区的系统消息中广播所述增加的小区所属的定时提前组 的标识, 以供所述用户设备获取所述定时提前组的标识, 并根据所述定时提 前组的标识和所述用户设备的已经配置的定时提前组的标识, 获取所述增加 的小区所属的定时提前组的定时提前值。
6、 一种定时提前值的更新处理方法, 其特征在于, 包括:
确定用户设备的小区所属的定时提前组由第一定时提前组修改为第二定 时提前组;
向所述用户设备发送修改请求消息, 所述修改请求消息以供所述用户设 备根据所述修改请求信息, 将所述小区所属的定时提前组由所述第一定时提 前组修改为所述第二定时提前组,并获取所述第二定时提前组的定时提前值。
7、根据权利要求 6所述的方法, 其特征在于, 向所述用户设备发送修改 请求消息, 包括:
向所述用户设备发送所述修改请求消息, 所述修改请求消息中携带所述 小区的标识和所述第二定时提前组的标识。
8、根据权利要求 6所述的方法, 其特征在于, 向所述用户设备发送修改 请求消息, 包括:
在所述小区上向所述用户设备发送所述修改请求信息, 所述修改请求信 息中携带所述第二定时提前组的标识。
9、 一种定时提前值的更新处理方法, 其特征在于, 包括:
接收基站在定时提前组中的小区上发送的定时提前命令, 所述定时提前 命令中携带调整信息;
根据所述调整信息修改所述小区所属的所述定时提前组的定时提前值。
10、 根据权利要求 9所述的方法, 其特征在于,
所述小区为所述定时提前组中通信信号最好的小区。
11、 根据权利要求 9或 10所述的方法, 其特征在于, 所述调整信息包括 所述定时提前组的定时提前值的偏移值或者所述定时提前组调整后的定时提 前值。
12、 根据权利要求 9或 10所述的方法, 其特征在于, 所述定时提前组包 括用户设备级的定时提前组或者为小区级的定时提前组。
13、 一种定时提前值的更新处理方法, 其特征在于, 包括:
接收基站发送的配置消息, 所述配置消息中携带增加的小区的标识, 根 据所述增加的小区的标识配置所述增加的小区;
接收所述基站广播的所述增加的小区的系统消息, 所述系统消息中携带 所述增加的小区所属的定时提前组的标识; 根据所述定时提前组的标识和已经配置的定时提前组的标识, 获取所述 增加的小区所属的定时提前组的定时提前值。
14、 根据权利要求 13所述的方法, 其特征在于, 根据所述定时提前组的 标识和已经配置的定时提前组的标识, 获取所述增加的小区所属的定时提前 组的定时提前值, 包括:
当所述定时提前组的标识为已经配置的定时提前组的标识时, 将所述已 经配置的定时提前组的定时提前值作为所述增加的小区所属的提前定时组的 定时提前值; 或,
当所述定时提前组的标识不是已经配置的定时提前组的标识时, 在所述 增加的小区上发起随机接入过程以从所述基站上获取所述增加的小区所属的 定时提前组的定时提前值。
15、 根据权利要求 13或 14所述的方法, 其特征在于, 还包括: 向所述基站发送配置响应消息。
16、 一种定时提前值的更新处理方法, 其特征在于, 包括:
当小区所属的定时提前组发生变化时, 接收基站发送的修改请求信息, 所述修改请求信息用于将所述小区所属的定时提前组由第一定时提前组修改 为第二定时提前组;
根据所述修改请求信息, 将所述小区所属的定时提前组由第一定时提前 组修改为第二定时提前组;
获取所述第二定时提前组的定时提前值。
17、 根据权利要求 16所述的方法, 其特征在于, 接收所述基站发送的修 改请求信息, 包括:
接收所述基站发送的所述修改请求信息, 所述修改请求信息中携带所述 小区的标识和所述第二定时提前组的标识。
18、 根据权利要求 16所述的方法, 其特征在于, 接收所述基站发送的修 改请求信息, 包括: 在所述小区上接收所述基站发送的所述修改请求信息, 所述修改请求信 息中携带所述第二定时提前组的标识。
19、 根据权利要求 16-18任一所述的方法, 其特征在于, 所述修改请求 信息中还携带调整信息;
获取所述第二定时提前组的定时提前值, 包括:
从所述修改请求信息中获取所述调整信息;
根据所述调整信息获取所述第二定时提前组的定时提前值。
20、 根据权利要求 19所述的方法, 其特征在于, 所述调整信息为所述第 二定时提前组相对于所述第一定时提前组的定时提前值的偏移值或者所述第 二定时提前组的定时提前值。
21、 根据权利要求 16-18任一所述的方法, 其特征在于, 获取所述第二 定时提前组的定时提前值, 包括:
在所述小区上发起随机接入过程以从所述基站上获取所述第二定时提前 组的定时提前值。
22、 一种基站, 其特征在于, 包括:
选择模块, 用于当用户设备的定时提前组的定时提前值需要调整时, 从 所述定时提前组中选择小区;
发送模块, 用于在所述选择模块选择的所述小区上向所述用户设备发送 定时提前命令, 所述定时提前命令中携带调整信息; 所述调整信息用以供所 述用户设备根据所述调整信息修改所述定时提前组的定时提前值。
23、 根据权利要求 22所述的基站, 其特征在于, 所述选择模块, 具体用 于当用户设备的定时提前组的定时提前值需要调整时, 从所述定时提前组中 选择通信信号最好的小区作为所述小区。
24、 一种基站, 其特征在于, 包括:
发送模块, 用于向所述用户设备发送配置消息, 所述配置消息中携带增 加的小区的标识, 以供所述用户设备根据所述增加的小区的标识为所述用户 设备配置所述增加的小区;
广播模块, 用于在所述增加的小区的系统消息中广播所述增加的小区所 属的定时提前组的标识, 以供所述用户设备获取所述定时提前组的标识, 并 根据所述定时提前组的标识和所述用户设备的已经配置的定时提前组的标 识, 获取所述增加的小区所属的定时提前组的定时提前值。
25、 一种基站, 其特征在于, 包括:
确定模块, 用于确定用户设备的小区所属的定时提前组由第一定时提前 组修改为第二定时提前组;
发送模块, 用于根据所述确定模块确定的结果, 向所述用户设备发送修 改请求消息, 所述修改请求消息以供所述用户设备根据所述修改请求信息, 将所述小区所属的定时提前组由所述第一定时提前组修改为所述第二定时提 前组, 并获取所述第二定时提前组的定时提前值。
26、 根据权利要求 25所述的基站, 其特征在于,
所述发送模块, 具体用于根据所述确定模块确定的结果, 向所述用户设 备发送所述修改请求消息, 所述修改请求消息中携带所述小区的标识和所述 第二定时提前组的标识, 所述修改请求信息用于所述用户设备根据所述修改 请求消息将所述小区所属定时提前组由所述第一定时提前组修改为所述第二 定时提前组, 并获取所述第二定时提前组的定时提前值。
27、 根据权利要求 25所述的基站, 其特征在于,
所述发送模块, 具体用于根据所述确定模块确定的结果, 在所述小区上 向所述用户设备发送所述修改请求信息, 所述修改请求信息中携带所述第二 定时提前组的标识, 所述修改请求信息用于所述用户设备根据所述修改请求 消息将所述小区所属定时提前组由所述第一定时提前组修改为所述第二定时 提前组, 并获取所述第二定时提前组的定时提前值。
28、 一种用户设备, 其特征在于, 包括:
接收模块,用于接收基站在定时提前组中的小区上发送的定时提前命令; 所述定时提前命令中携带调整信息;
修改模块, 用于根据所述接收模块接收到的所述定时提前命令中的所述 调整信息修改所述小区所属的所述定时提前组的定时提前值。
29、 一种用户设备, 其特征在于, 包括:
接收模块, 用于接收基站发送的配置消息, 所述配置消息中携带增加的 小区的标只;
配置模块, 用于根据所述接收模块接收的所述配置消息, 将所述增加的 小区的标识对应的小区配置为所述用户设备的小区;
所述接收模块,还用于接收所述基站广播的所述增加的小区的系统消息; 所述系统消息中携带所述增加的小区所属的定时提前组的标识;
获取模块, 用于根据所述接收模块接收的所述定时提前组的标识和已经 配置的定时提前组的标识, 获取所述增加的小区所属的定时提前组的定时提 前值。
30、 根据权利要求 29所述的用户设备, 其特征在于,
所述获取模块, 具体用于确定所述接收模块接收的所述定时提前组的标 识为已经配置的定时提前组的标识, 将所述已经配置的定时提前组的定时提 前值作为所述增加的小区所属的提前定时组对应的定时提前值; 或, 确定所 述接收模块接收的所述定时提前组的标识不是已经配置的定时提前组的标 识, 在所述增加的小区上发起随机接入过程以从所述基站上获取所述增加的 小区所属的定时提前组的定时提前值。
31、 一种用户设备, 其特征在于, 包括:
接收模块, 用于当小区所属的定时提前组发生变化时, 接收基站发送的 用于将所述聚合小区所属的定时提前组由所述第一定时提前组修改为第二定 时提前组的修改请求信息;
修改模块, 用于根据所述接收模块接收的所述修改请求信息, 将所述小 区所属的定时提前组由所述第一定时提前组修改为所述第二定时提前组; 获取模块, 用于根据所述修改模块将所述小区所属的定时提前组修改为 所述第二定时提前组, 获取所述第二定时提前组的定时提前值。
32、 根据权利要求 31所述的用户设备, 其特征在于,
所述接收模块, 具体用于当所述小区所属的定时提前组发生变化时, 接 收所述基站发送的所述修改请求信息, 所述修改请求信息中携带所述小区的 标识和所述小区所属的第二定时提前组的标识。
33、 根据权利要求 31所述的用户设备, 其特征在于,
所述接收模块, 具体用于当小区所属的定时提前组发生变化时, 在所述 小区上接收所述基站发送的所述修改请求信息, 所述修改请求信息中携带所 述小区所属的第二定时提前组的标识。
34、 根据权利要求 31-33任一所述的用户设备, 其特征在于,
所述获取模块, 具体用于当所述接收模块接收的所述修改请求信息中还 携带调整信息时, 从所述修改请求信息中获取所述调整信息, 根据所述调整 信息获取所述第二定时提前组的定时提前值。
35、 根据权利要求 31-33任一所述的用户设备, 其特征在于,
所述获取模块, 具体用于在所述小区上发起随机接入过程以从所述基站 上获取所述小区所属的所述第二定时提前组的定时提前值。
36、 一种通信系统, 其特征在于, 包括: 基站和用户设备;
所述基站,用于当所述用户设备的定时提前组的定时提前值需要调整时, 从所述定时提前组中选择小区; 在所述小区上向所述用户设备发送定时提前 命令, 所述定时提前命令中携带调整信息;
所述用户设备, 用于接收所述基站在所述小区上发送的所述定时提前命 令, 根据所述调整信息修改所述小区所属的所述定时提前组的定时提前值。
37、 一种通信系统, 其特征在于, 包括: 基站和用户设备;
所述基站, 用于向所述用户设备发送配置消息, 所述配置消息中携带增 加的小区的标识, 并在所述增加的小区的系统消息中广播所述增加的小区所 属的定时提前组的标识;
所述用户设备, 用于接收所述基站发送的配置消息, 并接收所述基站广 播的所述增加的小区的系统消息, 根据所述定时提前组的标识和已经配置的 定时提前组的标识, 获取所述增加的小区所属的定时提前组的定时提前值。
38、 一种通信系统, 其特征在于, 包括: 基站和用户设备;
所述基站, 用于确定用户设备的小区所属的定时提前组由第一定时提前 组修改为第二定时提前组; 向所述用户设备发送修改请求消息;
所述用户设备, 用于接收所述基站发送的修改请求信息, 根据所述修改请 求信息, 将所述小区所属的定时提前组由所述第一定时提前组修改为所述第二 定时提前组, 并获取所述第二定时提前组的定时提前值。
PCT/CN2012/072638 2011-03-21 2012-03-20 定时提前值的更新处理方法、基站、用户设备及系统 WO2012126355A1 (zh)

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