WO2010075717A1 - 用户上下行不同步切换的方法和装置 - Google Patents
用户上下行不同步切换的方法和装置 Download PDFInfo
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- WO2010075717A1 WO2010075717A1 PCT/CN2009/075211 CN2009075211W WO2010075717A1 WO 2010075717 A1 WO2010075717 A1 WO 2010075717A1 CN 2009075211 W CN2009075211 W CN 2009075211W WO 2010075717 A1 WO2010075717 A1 WO 2010075717A1
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- user
- cell
- uplink
- downlink
- configuration
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- 238000000034 method Methods 0.000 title claims abstract description 45
- 238000005259 measurement Methods 0.000 claims abstract description 62
- 238000004891 communication Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 3
- 230000008859 change Effects 0.000 description 14
- 238000012423 maintenance Methods 0.000 description 6
- 230000002776 aggregation Effects 0.000 description 5
- 238000004220 aggregation Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000012790 confirmation Methods 0.000 description 3
- 239000000969 carrier Substances 0.000 description 2
- 238000013507 mapping Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
- H04W36/0085—Hand-off measurements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
- H04W36/302—Reselection being triggered by specific parameters by measured or perceived connection quality data due to low signal strength
Definitions
- the present application claims Chinese patent application filed on December 31, 2008, the Chinese Patent Office, the application number is CN 200810189802.6, and the invention name is "user uplink and downlink asynchronous switching method and device" Priority is hereby incorporated by reference in its entirety.
- the present invention relates to the field of communications, and in particular, to a method and apparatus for user uplink and downlink asynchronous switching.
- LTE Long Term Evolution
- CoMP Coordinatd Multi-Point Transmission and Reception
- a user can send and receive data through multiple cells.
- These cells can be distributed under the same network node, such as the same eNB (Evolution NodeB, evolved network node, ie, LTE base station). ), can also be distributed under different network nodes.
- the user can independently maintain the uplink and downlink cells in the CoMP communication system. Since the user can independently maintain the uplink and downlink cells, sometimes the uplink cell of the user changes, and the downlink cell does not change, or the downlink cell of the user changes, and the uplink cell does not change.
- Carrier aggregation means that users use multiple component carriers at the same time, and each component carrier can be used by one cell. In the scenario of carrier aggregation, the uplink and downlink component carriers do not change at the same time due to different uplink and downlink capabilities of the user.
- the uplink and downlink asynchronous switching in the aggregation scenario.
- the network side sends measurement control information (Measure Control) to the user to standardize the measurement behavior of the user and measure the reporting criteria.
- the user measures the neighboring cell of the access cell and the measurement result meets the reporting criteria. It is reported to the network node in the form of a measurement report.
- the measurement report includes the cell identifier that meets the reporting criteria.
- the network node performs the user's uplink and downlink handover decision according to the measurement result reported by the user.
- the user performs uplink and downlink handover, the user's uplink cell and downlink cell are simultaneously switched.
- the inventors found that in the prior art: When the user performs the uplink and downlink handover, the user's uplink cell and the downlink cell are always converted at the same time. In some new applications, such as an aggregation scenario or a CoMP scenario, sometimes the user only changes the uplink cell or only The downlink cell changes, and the uplink and downlink signal levels of the user are not the same. Sometimes the uplink signal is poor, and sometimes the downlink signal is poor. If the uplink and downlink are simultaneously switched, the overall data performance will be degraded. In addition, if the uplink or downlink cell that does not perform data transmission is switched, the number of cells that the user needs to maintain is increased, thereby increasing the complexity of user and system maintenance.
- the embodiment of the present invention provides a method and apparatus for user uplink and downlink asynchronous switching.
- the technical solution is as follows:
- a method for uplink and downlink asynchronous switching of a user comprising:
- the uplink resource of the user is configured, and the uplink cell of the user is switched;
- the downlink resource of the user is configured, and the downlink cell of the user is switched.
- the embodiment of the present invention further provides a device for uplink and downlink asynchronous switching of a user, where the device includes: a receiving module, configured to receive a measurement report sent by a user;
- a first switching module configured to switch, according to the measurement report received by the receiving module, when the uplink cell and the downlink cell of the user need to perform handover, and then switch the uplink cell of the user;
- the second switching module is configured to switch, according to the measurement report received by the receiving module, when the downlink cell of the user needs to perform handover in the uplink cell and the downlink cell, and then switch the downlink cell of the user.
- the resource when the user performs one-way switching in the uplink or the downlink, the resource is configured in one direction, and the uplink and downlink asynchronous switching of the user is implemented, which reduces the number of cells that the user needs to maintain, and reduces the number of users. And the complexity of system maintenance.
- BRIEF DESCRIPTION OF THE DRAWINGS In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description of the drawings used in the embodiments or the prior art description will be briefly described below. The drawings are only some of the embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any inventive labor.
- FIG. 1 is a flowchart of a method for uplink and downlink asynchronous switching of a user provided in Embodiment 1 of the present invention
- FIG. 2 is a flowchart of a method for uplink and downlink asynchronous switching of a user provided in Embodiment 2 of the present invention
- Embodiment 3 is a flowchart of a method for uplink and downlink asynchronous switching of a user provided in Embodiment 3 of the present invention
- Embodiment 4 is a structural diagram of an apparatus for uplink and downlink asynchronous switching of a user provided in Embodiment 4 of the present invention.
- DETAILED DESCRIPTION OF THE EMBODIMENTS In order to make the objects, technical solutions, and advantages of the present invention more comprehensible, the embodiments of the present invention will be further described in detail with reference to the accompanying drawings. It is apparent that the described embodiments are only a part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
- Embodiment 1 In order to implement the uplink and downlink asynchronous switching of the user in the communication system, the embodiment of the present invention provides a method for user uplink and downlink asynchronous switching. Referring to FIG. 1, the method includes: 101: Receive a measurement report sent by a user.
- the uplink resource of the user is configured, and the uplink cell of the user is switched. Specifically, when only the uplink cell needs to be switched, only the uplink resource configuration in the unidirectional direction is configured for the user, and the downlink resource configuration is maintained, so that the user can perform the handover of the uplink cell in one direction.
- the downlink resource of the user is configured, and the downlink cell of the user is switched.
- the embodiment of the present invention provides a method for uplink and downlink asynchronous switching of the user.
- the user performs the uplink single-direction handover under the same network node as an example, that is, the user's uplink cell changes, and the downlink cell does not change, and the user uplink cell handover does not cross the network node.
- the process of switching the uplink cell of the user is:
- the user performs measurement on the serving cell and/or the cell adjacent to the serving cell, and obtains the identifier of the measured cell. And reporting the measurement report to the network node of the current service user, where the measurement report includes the cell identifier that satisfies the measurement condition.
- the network node After receiving the measurement report, the network node determines, according to the measurement report, whether the uplink cell or the downlink cell of the user needs to perform handover; when determining that the uplink cell of the user needs to perform handover, the uplink of the user Resources are configured. Specifically, the network node configures the uplink resource of the user, and there are two methods.
- One is: determining, according to the measurement report, the uplink configuration cell of the user; the uplink configuration cell, that is, the cell that the user needs to switch to, The uplink configuration cell configures an identifier for the user, and performs uplink radio resource configuration for the user.
- the resource correspondence relationship of the uplink configuration cell of the user in the uplink radio resource configuration is updated according to the change of the uplink configuration cell of the user, that is, according to the configuration of the uplink configuration cell of the uplink handover.
- the network node determines the uplink configuration cell of the user according to the measurement report; configures an identifier for the user on the uplink configuration cell, and performs uplink radio resource configuration for the user. .
- the network node selects, according to the measurement report, an appropriate cell from the relevant uplink cell of the user as the uplink configuration cell of the user.
- the network node can select the uplink configuration cell of the user from the cell reported by the user's measurement report according to the RRM (Radio Resource Management) algorithm according to the measurement report of the user.
- RRM Radio Resource Management
- the network node needs to send the information of the added link to the uplink configuration cell and the user.
- the appropriate uplink configuration cell is selected, the user is configured with an identifier on the uplink configuration cell, and the uplink radio resource configuration is performed on the user.
- configuring the identifier for the user may be: The user allocates the C-RNTI (the user identifier on the public transport channel), and may also be other user identifiers, such as identifying the unique identifier of the user in the access network.
- the uplink radio resource configuration for the user may be: RB (Radio Bearer, wireless carrier) configuration.
- the uplink RB configuration includes: ⁇ (network node identifier) user identifier; uplink EPS (Evolved Packet System) identifier; uplink radio bearer identifier; uplink PDCP (Packet Data Convergence Protocol) Configuration; uplink RLC (Radio Link Control) configuration; uplink logical channel configuration; uplink transport channel configuration; uplink physical channel configuration;
- the radio resource configuration includes:
- ⁇ cell scrambling information high-level identity of the cell; ⁇ downlink EPS bearer identifier; downlink radio bearer identifier; downlink PDCP configuration; Downlink RLC configuration; downlink logical channel configuration; downlink transport channel configuration; downlink physical channel configuration;
- the uplink and downlink PDCP configurations include: the setting of the drop timer, whether the RLC status report is required, the setting of the clear timer, and the SN (Service Node) of the PDCP. Size, as well as header compression algorithms and more.
- the uplink RLC configuration includes: poll related settings in AM (Affirm mode) mode, and
- the downlink RLC configuration includes: reordering settings and status prohibition settings.
- the uplink logical channel configuration includes: the priority of the logical channel, the priority bit rate, and the associated logical channel group.
- the uplink and downlink transport channel configuration that is, the configuration of the MAC (Media Access Control) layer includes: configuration of persistent scheduling, maximum number of retransmissions, setting of periodic status reporting timer, etc., including DRX (Discontinous Reception, non- Continuous reception) settings, time series timer, and PHR (Power Headroom Report) settings.
- the uplink physical channel configuration includes: PDSCH (Downlink Physical Channels) settings, PUCCH (Uplink Physical Channels) settings, uplink power control, antenna information, and scheduling request settings.
- the downlink physical channel configuration includes: PDSCH setting, PUCCH setting, antenna information, and scheduling request setting.
- the configuration of each resource remains unchanged. After the configuration of the radio resources is completed, the uplink switching of the user can be performed.
- the resource correspondence relationship of the uplink configuration cell includes a correspondence between the uplink configuration cell and the user identifier of the user, where the user identifier is an identifier allocated by the uplink configuration cell to the user; in the uplink direction of the user,
- the uplink configuration cell includes cell 1, cell 2, and cell 3.
- the id (identification) assigned to the user in cell 1 is UE id1, the identity assigned by cell 2 to the user is UE id2, and the cell 3 is assigned to the user.
- Updating the resource correspondence relationship of the uplink configuration cell is specifically: determining an uplink configuration cell of the user, obtaining a user identifier for the user on the uplink configuration cell, and updating the correspondence between the uplink cell and the identifier allocated for the user, for example, when When the user's uplink cell is handed over from cell 1 to cell 2, the identity assigned to the user on cell 2 is updated.
- each relevant cell is equal at this time, and the configuration at the physical layer needs to indicate the used cell, so each cell needs to be configured with a user ID. See Table 1 for the resource correspondence table of the uplink configuration cell.
- the physical channel distinguishes the identifier of the relevant cell, and the resource mapping table of the uplink configuration cell only needs to indicate the uplink anchor cell and the downlink anchor cell.
- the user ID may not be configured.
- For the resource correspondence table of the uplink configuration cell see Table 2.
- the uplink resource of the user is configured as an anchor, and the uplink configuration cell of the user is a cell configured by the anchor point, the user identifier allocated to the user on the uplink configuration cell configured by the anchor point is acquired, and the anchor point is configured. The correspondence between the uplink configuration cell and the identifier assigned to the user is updated.
- the uplink configuration cell of the user is not the cell configured by the anchor point, only the uplink configuration cell of the user needs to be updated in the table.
- the network node After updating the resource correspondence relationship of the uplink configuration cell of the user, the network node can maintain the user according to the situation of the relevant cell used by the user and the list of uplink and downlink cells of the user. Up and down radio bearers.
- the user accesses the uplink configuration cell by using a random access procedure according to the configuration of the network node, and after completing the uplink path update, sends a confirmation message of the completion of the handover to the network node, to notify the completion of the network node handover, and the network node After receiving the confirmation information, the uplink configuration cell is used as the user's new uplink cell. The user can then transfer data through the switched uplink cell. It is to be noted that, because the user's uplink cell changes, the network side needs to reconfigure the measurement control information for the user according to the characteristics of the new uplink cell, and the reconfigured measurement control information includes the measurement target and the measurement bandwidth.
- the user When the user performs the uplink handover, the user needs to access the uplink configuration cell to obtain the uplink resource and the uplink synchronization. At this time, the downlink path of the user is not disconnected from the source network node, so the source cell and the uplink configuration cell can be obtained through the downlink path.
- the downlink timing difference is calculated by using the downlink timing difference to adjust the transmission time by the uplink timing difference when the user sends the access information, and accessing the uplink configuration cell by using the random access method to establish the user.
- the connection to the uplink configuration cell Correspondingly, when the user's downlink cell changes, and the uplink cell does not change, the user downlink cell handover does not cross the network node.
- the downlink resource is configured for the user to implement the downlink switching of the user according to the measurement report of the user.
- the specific method is similar to the method for performing the uplink single direction switching. I will not repeat them here.
- the uplink handover is different in the access configuration of the cell.
- the uplink of the user does not switch, that is, the uplink of the user and the network node does not exist. The user does not need to access the downlink configuration cell in a random access manner, and can directly access the downlink configuration cell and use the downlink handover completion information sent by the resource of the unchanged uplink cell.
- the embodiment of the present invention when the user performs one-way switching in the uplink or the downlink, the resource is configured in one direction, and the uplink and downlink asynchronous switching of the user is implemented, which reduces the number of cells that the user needs to maintain, and reduces the number of users. And the complexity of system maintenance.
- Embodiment 3 In order to implement the uplink and downlink asynchronous switching of the user in the communication system, the embodiment of the present invention provides a method for uplink and downlink asynchronous switching of the user.
- An example of the uplink cell handover in a single direction is performed by using a cross-network node as an example, that is, the uplink cell of the user changes, and the downlink cell does not change, and the cell in which the handover occurs does not belong to the network node where the user is located, and the user crosses.
- the network node performs handover of the uplink cell.
- the process of switching the uplink cell of the user is:
- the user performs measurement on the serving cell and/or the cell adjacent to the serving cell, and obtains the identifier of the measured cell.
- the measurement report is reported to the source network node of the current service, and the measurement report includes the cell identifier that satisfies the measurement condition.
- the source network node that is accessed by the user determines, according to the measurement report, whether the uplink cell or the downlink cell of the user needs to perform handover; when determining that the uplink cell of the user needs to perform handover, The user's uplink resources are configured.
- the source network node configures the uplink resource of the user, and the method may be: the first method is: determining, according to the measurement report, an uplink configuration cell of the user; Configure the ID and configure the uplink radio resource for the user.
- the second method is: updating the resource correspondence relationship of the uplink configuration cell of the user in the uplink radio resource configuration according to the change of the uplink configuration cell of the user.
- the first method described above is similar to 202a.
- the source network node selects a suitable uplink configuration cell
- the uplink configuration cell of the user is determined according to the measurement report and the RRM algorithm; and the resource negotiation is performed with the network node where the uplink configuration cell is located.
- the radio resource configuration is performed, the method is the same as the method for configuring the radio resource in 202a, and details are not described herein.
- the second method is similar to 202b. The difference is that: when performing uplink switching of a user across a network node, the identifier of the network node needs to be added to the uplink resource of the user. For example, Table 3 and Table 4 are used to configure the cell for uplink.
- the resource correspondence table the identifier of the network node is added to the table.
- the cell list in the table is the uplink configuration of the user, and the list of the area.
- the uplink network node identifier in the table is the identifier of the network node to which the uplink configuration cell of the user belongs.
- each cell needs to be configured with a user ID. See Table 3 for the resource correspondence table of the cell.
- Updating the resource correspondence relationship of the uplink configuration cell is specifically: determining an uplink configuration cell of the user, obtaining a user identifier for the user on the uplink configuration cell, and updating the correspondence between the uplink cell and the identifier allocated for the user, for example, when When the user's uplink cell is handed over from cell 1 to cell 2, the identity assigned to the user on cell 2 is updated.
- the physical channel distinguishes the identifier of the related cell, and only the uplink anchor cell and the downlink anchor cell are required to be indicated in the resource correspondence table of the uplink configuration cell.
- the other user-related cells may not be configured with the user ID.
- For the resource correspondence table of the uplink configuration cell see Table 4.
- the uplink resource of the user is configured as an anchor
- the uplink configuration cell of the user is a cell configured by the anchor point
- the user identifier allocated to the user on the uplink configuration cell configured by the anchor point is acquired, and the anchor point is configured.
- the correspondence between the uplink configuration cell and the identifier assigned to the user is updated.
- the uplink configuration cell of the user is not the cell configured by the anchor point, only the uplink configuration cell of the user needs to be updated in the table.
- the network bearer can maintain the uplink and downlink radio bearers according to the situation of the relevant cell used by the user and the list of the uplink and downlink cells of the user.
- the user accesses the uplink configuration cell by using a random access procedure according to the configuration of the source network node, and after completing the uplink path update, sends a confirmation message of completion of the handover to the target network node, and notifies the completion of the target network node handover.
- the target network node After receiving the acknowledgement information, the target network node performs handover of the uplink cell of the user, and uses the uplink configuration cell as a new uplink cell of the user. The user can then transfer data through the switched uplink cell.
- the target network node After the handover is completed, the target network node notifies the management device of the core network of the uplink change, where the management device of the core network may be an MME (Mobility Management Entity), and the MME notifies the serving gateway of the uplink. change.
- MME Mobility Management Entity
- the network side needs to maintain multiple S1 port paths for one user, where the S1 port is a network node and a port connected by the MME. It is to be noted that, because the user's uplink cell changes, the network side needs to reconfigure the measurement control information for the user according to the characteristics of the new uplink cell, and the reconfigured measurement control information includes the measurement target and the measurement bandwidth.
- the user When the user performs the uplink handover, the user needs to access the uplink configuration cell to obtain the uplink resource and the uplink synchronization. At this time, the downlink path of the user is not disconnected from the source network node, so the source cell and the target cell can be obtained through the downlink path.
- the downlink timing difference is calculated by the downlink timing difference, and the transmission timing is adjusted by the uplink timing difference when the user transmits the access information, and the uplink configuration cell is accessed by using the random access method to establish the user and the The uplink configures the connection of the cell.
- the user downlink cell handover is switched across the network node.
- the downlink resource is configured for the user to implement the downlink switching of the user according to the measurement report of the user.
- the specific method is similar to the method for performing the uplink single direction switching. I will not repeat them here.
- the downlink handover is different from the uplink handover in the access configuration of the cell.
- the user When accessing the downlink configuration cell, the user does not need to access the downlink configuration cell in a random access manner, and can directly access the downlink configuration.
- the target network node needs to notify the core network device, such as the MME, of the downlink change, and the MME also needs to notify the service gateway of the downlink. The change of the road.
- the service network After the service network has updated the downlink, it needs feedback information to the target network node to confirm that the path update is complete.
- the resource when the user performs one-way switching in the uplink or the downlink, the resource is configured in one direction, and the uplink and downlink asynchronous switching of the user is implemented, which reduces the number of cells that the user needs to maintain, and reduces the number of users. And the complexity of system maintenance.
- an embodiment of the present invention provides an apparatus for uplink and downlink asynchronous switching of a user, where the apparatus includes: a receiving module 401, configured to receive a measurement report sent by a user; and a first switching module 402, configured to The measurement report received by the receiving module, when only the uplink cell of the user needs to perform handover in the uplink cell and the downlink cell, the uplink cell of the user is switched; the second switching module 403 is configured to receive according to the receiving module.
- the measurement report is that when only the downlink cell needs to be handed over in the uplink cell and the downlink cell of the user, the downlink cell of the user is switched.
- the first switching module 402 includes: a measuring unit, configured to determine, according to the measurement report, an uplink configuration cell of the user; a configuration unit, configured to configure an identifier for the user on the uplink configuration cell, and configure the identifier for the user
- the first switching module 402 is configured to: determine, by the measurement unit, the uplink configuration cell of the user according to the measurement report, and the updating unit, configured to configure, according to the configuration of the uplink configuration cell of the user, The resource correspondence relationship of the uplink configuration cell is updated.
- the updating unit includes: a first update subunit, configured to update a correspondence between the uplink configuration cell and the first user identifier when the uplink resource of the user is not configured with an anchor point, where the first The user identifier is an identifier assigned to the user on the uplink configuration cell of the user; the second update subunit is configured to: when the uplink resource of the user is configured as an anchor point, and the uplink configuration cell of the user is an anchor point configuration And the corresponding relationship between the uplink configuration cell and the second user identifier is updated, where the second user identifier is an identifier allocated to the user on the uplink configuration cell of the user. Further, the update unit further includes:
- the first switching module 402 includes: a connecting unit, configured to establish, according to a configuration of an uplink resource of the user, a connection between the user and the uplink configured cell; and a switching unit, configured to receive an uplink switch sent by the user After the information is completed, the uplink cell of the user is switched to the uplink configuration cell.
- the connecting unit is specifically configured to acquire a timing difference between the source cell of the user and the uplink configured cell by using a downlink of the user, and indicate that the user adjusts access to the uplink configured cell according to the timing difference. And accessing the uplink configuration cell in a random access manner to establish a connection between the user and the uplink configuration cell.
- the second switching module 403, the second switching module 403 includes: a measuring unit, configured to determine, according to the measurement report, a downlink configuration cell of the user, and a configuration unit, configured to: The user configures the identifier and configures the downlink radio resource of the user; or the second switching module 403 includes: a measuring unit, configured to determine, according to the measurement report, a downlink configuration cell of the user; and an update unit, configured to: The configuration of the downlink configuration cell of the user updates the resource correspondence relationship of the downlink configuration cell of the user.
- the updating unit includes: a first update subunit, configured to update a correspondence between the downlink configuration cell and the first user identifier when the downlink resource of the user is not configured with an anchor point, where the first The user identifier is an identifier assigned to the user on the downlink configuration cell of the user; a second update subunit, configured to: when the downlink resource of the user is configured as an anchor, and the downlink configuration cell of the user is a cell configured by the anchor point, update the correspondence between the downlink configuration cell and the second user identifier The second user identifier is an identifier assigned to the user on a downlink configuration cell of the user. Further, the update unit further includes:
- the second switching module 403 includes: a connecting unit, configured to establish, according to a configuration of a downlink resource of the user, a connection between the user and the downlink configured cell; and a switching unit, configured to receive a downlink switch sent by the user After the information is completed, the downlink cell of the user is switched to the downlink configuration cell.
- the resource when the user performs one-way switching in the uplink or the downlink, the resource is configured in one direction, and the uplink and downlink asynchronous switching of the user is implemented, which reduces the number of cells that the user needs to maintain, and reduces the number of users. And the complexity of system maintenance.
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Abstract
本发明公开了一种用户上下行不同步切换的方法和装置,属于通信领域。所述方法包括:接收用户发送的测量报告;根据所述接收的测量报告,当用户的上行小区和下行 小区中只有上行小区需要进行切换时,则对所述用户的上行小区进行切换;当所述用户的上行小区和下行小区中只有下行小区需要进行切换时, 则对所述用户的下行小区进行 切换。所述装置包括:接收模块、第一配置模块、第一切换模块、第二配置模块和第二 切换模块。本发明实施例在用户进行上行或者下行的单方向切换时,通过单方向的进行 资源配置,实现了用户的上下行不同步的切换。
Description
用户上下行不同步切换的方法和装置 本申请要求于 2008年 12月 31 日提交中国专利局、 申请号为 CN 200810189802.6、 发明名称为 "用户上下行不同步切换的方法和装置" 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 本发明涉及通信领域, 特别涉及一种用户上下行不同步切换的方法和装置。 背景技术 在 LTE ( Long Term Evolution, 长期演进) ***中, 为了提高边缘用户的使用感受, 引入了多用户联合发送和接收的技术 CoMP (Coordinated Multi-Point transmission and reception, 协作多点传输 /接收)。 在 CoMP通信***中, 一个用户可以通过多个小区来 收发数据, 这些小区可以分布在同一个网络结点下, 比如分布在同一个 eNB ( Evolution NodeB , 演进的网络结点 Β , 即 LTE的基站)下, 也可以分布在不同的网络结点下。 为 了使用户接收和发送数据的性能都达到最优,在 CoMP通信***中用户可以独立的维护 上下行小区。 由于用户可以独立的维护上下行小区, 因此有时用户的上行小区会发生变 化, 而下行小区没有发生变化, 或者用户的下行小区发生了变化, 而上行小区没有发生 变化。
在 LTE***中,为了进一步的提高***的频谱效率和用户吞吐量,还引入了载波聚 合技术。 载波聚合即用户同时使用多个成员载波, 每个成员载波可以被一个小区使用。 在载波聚合的场景下, 由于用户的上下行的能力不同, 会导致上行或下行成员载波没有 同时发生变化,
即聚合场景下的上下行不同步的切换。
在用户切换上下行小区时, 网络侧向用户下发测量控制信息( Measurement Control ) 来规范用户的测量行为以及测量上报准则, 用户对接入小区的邻小区进行测量, 将符合 上报准则的测量结果以测量报告 ( Measurement Report ) 的形式上报给网络结点, 测量 报告中包括符合上报准则的小区标识。 网络结点根据用户上报的测量结果, 进行用户的 上下行切换判决。 在用户进行上下行的切换时, 用户的上行小区和下行小区是同时进行 切换的。
在对现有技术进行研究后, 发明人发现, 在现有技术中:
在用户进行上下行的切换时, 用户的上行小区和下行小区总是同时进行转换的, 而 在一些新的应用中, 比如聚合场景或 CoMP场景中, 有时用户仅是上行小区发生了变化 或者仅下行小区发生了变化, 而用户的上行和下行的信号水平并不相同, 有时上行信号 较差,有时下行信号较差,这时如果上下行同时切换会导致数据总体性能的下降。另夕卜, 如果没有进行数据传输的上行或下行小区进行了切换,会增加用户所需维护的小区的个 数, 从而增加了用户和***维护的复杂性。
发明内容
为了在通信***中, 实现用户的上下行不同步的切换, 本发明实施例提供了一种用 户上下行不同步切换的方法和装置。 所述技术方案如下:
一种用户上下行不同步切换的方法, 该方法包括:
接收用户发送的测量报告;
根据该接收的测量报告, 当该用户的上行小区和下行小区中只有上行小区需要进行 切换时, 对该用户的上行资源进行配置, 并对该用户的上行小区进行切换;
根据该接收的测量报告, 当该用户的上行小区和下行小区中只有下行小区需要进行 切换时, 对该用户的下行资源进行配置, 并对该用户的下行小区进行切换。
本发明实施例还提供了一种用户上下行不同步切换的装置, 该装置包括: 接收模块, 用于接收用户发送的测量报告;
第一切换模块, 用于根据所述接收模块接收的测量报告, 当所述用户的上行小区和 下行小区中只有上行小区需要进行切换时, 则对所述用户的上行小区进行切换;
第二切换模块, 用于根据所述接收模块接收的测量报告, 当所述用户的上行小区和 下行小区中只有下行小区需要进行切换时, 则对所述用户的下行小区进行切换。
本发明实施例在用户进行上行或者下行的单方向切换时,通过单方向的进行资源配 置, 实现了用户的上下行不同步的切换, 减少了用户所需维护的小区的个数, 降低了用 户和***维护的复杂性。 附图说明 为了更清楚地说明本发明实施例或现有技术中的技术方案, 下面将对实施例或现有 技术描述中所需要使用的附图作一简单地介绍, 显而易见地, 下面描述中的附图仅仅是 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性的前提下, 还可以根据这些附图获得其他的附图。
图 1是本发明实施例 1中提供的用户上下行不同步切换的方法流程图; 图 2是本发明实施例 2中提供的用户上下行不同步切换的方法流程图;
图 3是本发明实施例 3中提供的用户上下行不同步切换的方法流程图;
图 4是本发明实施例 4中提供的用户上下行不同步切换的装置的结构图。 具体实施方式 为使本发明的目的、 技术方案和优点更加清楚, 下面将结合附图对本发明实施方式 作进一步地详细描述。 显然, 所描述的实施例仅仅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。
实施例 1 为了在通信***中, 实现用户的上下行不同步的切换, 本发明实施例提供了一种用 户上下行不同步切换的方法。 参见图 1 , 该方法包括: 101: 接收用户发送的测量报告。
102: 当该用户的上行小区和下行小区中只有上行小区需要进行切换时, 则对该用 户的上行资源进行配置, 并对该用户的上行小区进行切换。 具体的,在只有上行小区需要进行切换时,则只对用户进行单方向的上行资源配置, 而保持下行资源配置不变, 使用户能够进行单方向的上行小区的切换。 103: 当该用户的上行小区和下行小区中只有下行小区需要进行切换时, 则对该用 户的下行资源进行配置, 并对该用户的下行小区进行切换。 具体的,在只有下行小区需要进行切换时,则只对用户进行单方向的下行资源配置, 而保持下行资源配置不变, 使用户能够进行单方向的下行小区的切换。 本发明实施例在用户进行上行或者下行的单方向切换时,通过单方向的进行资源配 置, 实现了用户的上下行不同步的切换, 减少了用户所需维护的小区的个数, 降低了用 户和***维护的复杂性。
实施例 2 为了在通信***中, 实现用户的上下行不同步的切换, 本发明实施例提供了一种用 户上下行不同步切换的方法。 具体的, 以在同一个网络结点下用户进行上行单方向的切换为例进行说明, 即用户 的上行小区发生了变化, 而下行小区没有发生变化, 同时用户上行小区的切换没有跨网 络结点。 此时, 参见图 2, 对用户的上行小区进行切换的过程为:
201: 用户对服务小区和 /或与服务小区相邻的小区进行测量, 获取测量的小区的标 识。 并向当前服务用户的网络结点上报测量报告, 测量报告中包括满足测量条件的小区 标识。 202: 该网络结点在接收到测量报告后, 根据测量报告, 判断该用户的上行小区或 下行小区是否需要进行切换; 当判断出该用户的上行小区需要进行切换时, 则对该用户 的上行资源进行配置。 具体的, 网络结点对该用户的上行资源进行配置, 可以有两种方法, 一种为: 根据 该测量报告, 确定该用户的上行配置小区; 上行配置小区即用户需要切换到的小区, 在 该上行配置小区上为该用户配置标识, 并对该用户进行上行无线资源配置。 另一种为: 根据该用户的上行配置小区发生的变更, 即根据上行切换的上行配置小 区的配置, 对该上行无线资源配置中的该用户的上行配置小区的资源对应关系进行更 新。 下面对这两种方法进行具体说明: 202a: 网络结点根据该测量报告, 确定该用户的上行配置小区; 在该上行配置小区 上为该用户配置标识, 并对该用户进行上行无线资源配置。 具体的, 该网络结点根据测量报告, 从该用户的相关上行小区中, 选择合适的小区 作为该用户的上行配置小区。比如网络结点可以根据用户的测量报告,结合 RRM ( Radio Resource Management, 无线资源管理)算法从用户的测量报告中上报的小区中选择用户 的上行配置小区。 需要说明的是, 如果网络结点选择的小区之前并不在用户的通信列表 中的话, 那么网络结点还需要发送增加链路的信息给上行配置小区和用户。 在选出合适的上行配置小区后, 在该上行配置小区上为该用户配置标识, 并对该用 户进行上行无线资源配置。 举例说明, 为用户配置标识可以为: 在上行配置小区中为该
用户分配 C-RNTI (公共传输信道上的用户标识) , 也可以是其他用户标识, 比如标识 用户在接入网内唯一的标识等; 对用户进行上行无线资源配置可以为: 对用户进行上行 的 RB ( Radio Bearer, 无线 载) 配置。 其中, 上行的 RB配置包括: { (网络结点标识) 用户标识; 上行 EPS ( Evolved Packet System, 演进分组***) 载标识; 上行无线承载标识; 上行 PDCP ( Packet Data Convergence Protocol, 分组数据汇集协议) 配置; 上行 RLC ( Radio Link Control, 无线链路控制) 配置; 上行逻辑信道配置; 上行传输信道配置; 上行物理信道配置; }
在进行无线资源配置时可以有两种方式: 一种是只进行上行的无线资源配置, 另一 种方式是同时进行上行和下行的无线资源配置,但下行的无线资源配置保持原资源配置 不变。 仍以 RB配置为例进行说明, 下行的 RB配置包括:
{ (网络结点标识) 下行小区中用户使用的标识; 下行小区列表
{小区的扰码信息; 小区的高层标识; } 下行 EPS承载标识; 下行无线承载标识; 下行 PDCP配置;
下行 RLC配置; 下行逻辑信道配置; 下行传输信道配置; 下行物理信道配置; }
在上述资源配置中, 各项配置的主要内容为: 上下行的 PDCP配置包括: 丢弃定时器的设置, 是否需要 RLC的状态报告, 清空定 时器的设置, PDCP的 SN ( Service Node, 业务节点) 大小, 以及头压缩算法等。 上行 RLC配置包括: AM ( Affirm mode, 确认模式)模式中的 poll相关的设置, 以 及
UM ( Un-affirm mode非确认模式)模式中的 SN ( Service Node, 业务节点)长度的 设置。 下行 RLC配置包括: 重排序的设置以及状态禁止的设置。 上行的逻辑信道配置包括: 逻辑信道的优先级, 优先比特率, 以及所属的逻辑信道 组。 上下行的传输信道配置, 即 MAC ( Media Access Control, 介质访问控制)层的配置 包括: 持续调度的配置, 最大重传数, 周期状态报告定时器等的设置, 还包括 DRX ( Discontinous Reception, 非连续接收) 的设置, 时间序列定时器以及 PHR ( Power Headroom Report: 功率余额上报) 的设置等。 上行物理信道配置包括: PDSCH ( Downlink Physical Channels , 物理下行控制通道) 的设置、 PUCCH ( Uplink Physical Channels , 物理上行控制通道) 的设置、 上行功率控 制、 天线信息和调度请求设置。 下行物理信道配置包括: PDSCH的设置、 PUCCH的设置、 天线信息和调度请求设 置。 在下行的无线资源配置中, 各项资源的配置保持不变。 在无线资源的配置完成后, 就可以进行用户的上行切换。
202b: 根据该用户的上行配置小区发生的变更, 即根据上行切换的上行配置小区的 配置, 对该上行无线资源配置中的该用户的上行配置小区的资源对应关系进行更新。
具体的, 参见表 1 , 上行配置小区的资源对应关系包括该用户上行配置小区和用户 标识的对应关系, 其中用户标识为该上行配置小区分配给该用户的标识; 在表中的上行 方向, 用户的上行配置小区包括小区 1、 小区 2和小区 3, 在小区 1为该用户分配的 id (标 识)为 UE idl ,小区 2为该用户分配的标识为 UE id2 ,小区 3为该用户分配的标识为 UE id3。 更新上行配置小区的资源对应关系具体为: 确定用户的上行配置小区, 获取在上行配置 小区上为该用户分配用户标识, 并对上行小区和为用户分配的标识的对应关系进行更 新, 比如, 当用户的上行小区从小区 1切换为小区 2时, 则更新在小区 2上为用户分配的 标识。 补充说明的是, 当该用户的上行资源没有进行锚点配置时, 此时各个相关小区是平 等的, 在物理层的配置需要指明使用的小区, 因此每个小区都需要配置一个用户 ID, 此 时上行配置小区的资源对应关系表参见表 1。
当该用户的上行资源进行了锚点配置时, 此时物理信道会区分相关小区的标识, 在 上行配置小区的资源对应关系表中只需要表明上行的锚点小区和下行的锚点小区即可, 其他相关小区也可以不配置用户 ID, 此时上行配置小区的资源对应关系表参见表 2。 在用户的上行资源进行了锚点配置,并且该用户的上行配置小区为锚点配置的小区 时, 则获取在锚点配置的上行配置小区上为该用户分配的用户标识, 并对锚点配置的上 行配置小区和为用户分配的标识的对应关系进行更新。 当用户的上行配置小区不是锚点 配置的小区时, 则只需要在表中更新用户的上行配置小区即可。
小区 2 小区 5 小区 3 小区 6 表 2 网络结点在对用户的上行配置小区的资源对应关系更新后,就可以根据用户使用的 相关小区的情况, 以及用户的上行、 下行小区的列表, 维护用户上下行的无线承载。
203: 用户根据网络结点的配置, 通过随机接入过程接入到上行配置小区, 完成上 行路径更新后, 向网络结点发送切换完成的确认消息, 通知网络结点切换的完成, 该网 络结点收到确认信息后, 将该上行配置小区作为用户的新的上行小区。 之后用户就可以 通过切换后的上行小区传输数据。 补充说明的是, 由于用户的上行小区发生了变化, 网络侧需要根据新的上行小区的 特性, 为用户重新配置测量控制信息, 重新配置的测量控制信息包括测量目标和测量带 宽等。 在用户进行上行切换时, 用户需要接入到上行配置小区以获取上行资源和上行同 步, 此时用户的下行路径没有和源网络结点断开, 因此可以通过下行路径获取源小区和 上行配置小区之间的下行定时差, 通过下行定时差, 计算出上行定时差, 在用户在发送 接入信息时通过上行定时差调整发送时间, 使用随机接入的方式接入该上行配置小区, 建立该用户与该上行配置小区的连接。 相应的, 在用户的下行小区发生了变化, 而上行小区没有发生变化时, 同时用户下 行小区的切换没有跨网络结点。 此时, 在进行用户的下行小区的单方向切换时, 也同样 是根据用户的测量报告, 为该用户配置下行资源以实现用户的下行切换, 具体方法与进 行上行单方向的切换的方法类似, 此处不再赘述。 需要说明的是, 下行切换时与上行切 换在接入配置小区时有所不同, 用户在接入下行配置小区时, 由于用户的上行小区没有 发生切换, 即用户与网络结点的上行链路没有发生变化, 此时用户不需要以随机接入的 方式接入下行配置小区, 可以直接接入下行配置小区, 并使用未发生变化的上行小区的 资源发送的下行切换完成信息。 本发明实施例在用户进行上行或者下行的单方向切换时,通过单方向的进行资源配 置, 实现了用户的上下行不同步的切换, 减少了用户所需维护的小区的个数, 降低了用 户和***维护的复杂性。
实施例 3 为了在通信***中, 实现用户的上下行不同步的切换, 本发明实施例提供了一种用 户上下行不同步切换的方法。 以跨网络结点进行单方向的上行小区切换为例进行说明, 即用户的上行小区发生了 变化, 而下行小区没有发生变化, 同时发生切换的小区不属于该用户所在的网络结点, 用户跨网络结点进行上行小区的切换。 此时, 参见图 3 , 对用户的上行小区进行切换的 过程为:
301 : 用户对服务小区和 /或与服务小区相邻的小区进行测量, 获取测量的小区的标 识。 并向当前服务的源网络结点上报测量报告, 测量报告中包括满足测量条件的小区标 识。
302: 用户接入的源网络结点在接收到测量报告后, 根据测量报告, 判断该用户的 上行小区或下行小区是否需要进行切换; 当判断出该用户的上行小区需要进行切换时, 则对该用户的上行资源进行配置。 具体的, 源网络结点对该用户的上行资源进行配置, 可以有两种方法, 第一种方法 为: 根据该测量报告, 确定该用户的上行配置小区; 在该上行配置小区上为该用户配置 标识, 并对该用户进行上行无线资源配置。 第二种方法为: 根据该用户的上行配置小区的变更, 对该上行无线资源配置中的该 用户的上行配置小区的资源对应关系进行更新。 上述的第一种方法与 202a类似。 区别点在于, 当源网络结点在选择合适的上行配置 小区时,是根据测量报告和 RRM算法确定该用户的上行配置小区; 并与该上行配置小区 所在的网络结点进行资源的协商。 在进行无线资源配置时, 方法与 202a中无线资源配置 的方法相同, 不再赘述。
302b: 第二种方法与 202b类似, 区别点在于: 跨网络结点进行用户的上行切换时, 需要在用户的上行资源中增加网络结点的标识信息,参见表 3和表 4为上行配置小区的资 源对应关系表, 在表中增加了网络结点的标识。 表中的小区列表为用户的上行配置'』、区 的列表, 表中的上行网络结点标识为用户的上行配置小区所属的网络结点的标识。
其中, 当该用户的上行资源没有进行锚点配置时, 此时各个相关小区是平等的, 在 物理层的配置需要指明使用的小区, 因此每个小区都需要配置一个用户 ID, 此时上行 配置小区的资源对应关系表参见表 3。 更新上行配置小区的资源对应关系具体为: 确定 用户的上行配置小区, 获取在上行配置小区上为该用户分配用户标识, 并对上行小区和 为用户分配的标识的对应关系进行更新, 比如, 当用户的上行小区从小区 1切换为小区 2 时, 则更新在小区 2上为用户分配的标识。
当该用户的上行配置小区中有锚点配置时, 此时物理信道会区分相关小区的标识, 在上行配置小区的资源对应关系表中只需要表明上行的锚点小区和下行的锚点小区即 可,其他相关小区也可以不配置用户 ID,此时上行配置小区的资源对应关系表参见表 4。 在用户的上行资源进行了锚点配置,并且该用户的上行配置小区为锚点配置的小区 时, 则获取在锚点配置的上行配置小区上为该用户分配的用户标识, 并对锚点配置的上 行配置小区和为用户分配的标识的对应关系进行更新。 当用户的上行配置小区不是锚点 配置的小区时, 则只需要在表中更新用户的上行配置小区即可。
表 4 网络结点在对用户的上行配置小区的资源对应关系更新后,就可以根据用户使用的 相关小区的情况, 以及用户的上行、 下行小区的列表, 维护用户上下行的无线承载。
303: 用户根据源网络结点的配置, 使用随机接入过程接入到上行配置小区, 完成 上行路径更新后, 向目标网络结点发送切换完成的确认消息, 通知目标网络结点切换的 完成, 目标网络结点收到确认信息后, 执行用户的上行小区的切换, 将该上行配置小区 作为用户的新的上行小区。 之后用户就可以通过切换后的上行小区传输数据。 在切换完成后, 目标网络结点通知核心网的管理设备上行链路的变更, 其中核心网 的管理设备可以为 MME ( Mobility Management Entity, 移动性管理实体) , 由 MME通 知服务网关上行链路的变更。 此外, 由于用户通过不同的网络结点来进行上下行的数据 操作, 所以网络侧需要为一个用户维护多条 S1口的路径, 其中 S1口是网络结点和 MME 连接的端口。 补充说明的是, 由于用户的上行小区发生了变化, 网络侧需要根据新的上行小区的 特性, 为用户重新配置测量控制信息, 重新配置的测量控制信息包括测量目标和测量带 宽等。 在用户进行上行切换时, 用户需要接入到上行配置小区以获取上行资源和上行同 步, 此时用户的下行路径没有和源网络结点断开, 因此可以通过下行路径获取源小区和 目标小区之间的下行定时差, 通过下行定时差, 计算出上行定时差, 在用户在发送接入 信息时通过上行定时差调整发送时间, 使用随机接入的方式接入该上行配置小区, 建立 该用户与该上行配置小区的连接。 相应的, 在用户的下行小区发生了变化, 而上行小区没有发生变化时, 同时用户下 行小区的切换为跨网络结点的切换。 此时, 在进行用户的下行小区的单方向切换时, 也 同样是根据用户的测量报告, 为该用户配置下行资源以实现用户的下行切换, 具体方法 与进行上行单方向的切换的方法类似, 此处不再赘述。 需要说明的是, 下行切换时与上 行切换在接入配置小区时有所不同, 用户在接入下行配置小区时, 不需要以随机接入的 方式接入下行配置小区, 可以直接接入下行配置小区, 并使用未发生变化的上行小区的 资源发送的下行切换完成信息。 另外下行小区发生跨网络节点的切换后, 由于用户的下行链路所在的小区发生变 化, 目标网络节点需要向核心网设备,如 MME通知下行链路的变更, MME也需要通知服 务网关其下行链路的变化。 当服务网络已经更新完下行链路后, 需要反馈信息给目标网 络节点, 确认路径更新完成。
本发明实施例在用户进行上行或者下行的单方向切换时,通过单方向的进行资源配 置, 实现了用户的上下行不同步的切换, 减少了用户所需维护的小区的个数, 降低了用 户和***维护的复杂性。
实施例 4 参见图 4, 本发明实施例提供了一种用户上下行不同步切换的装置, 该装置包括: 接收模块 401 , 用于接收用户发送的测量报告; 第一切换模块 402, 用于根据该接收模块接收的测量报告, 当该用户的上行小区和 下行小区中只有上行小区需要进行切换时, 则对该用户的上行小区进行切换; 第二切换模块 403 , 用于根据该接收模块接收的测量报告, 当该用户的上行小区和 下行小区中只有下行小区需要进行切换时, 则对该用户的下行小区进行切换。 其中, 该第一切换模块 402, 包括: 测量单元, 用于根据该测量报告确定该用户的上行配置小区; 配置单元, 用于在该上行配置小区上为该用户配置标识, 并对该用户的上行无线资 源进行配置; 或者该第一切换模块 402, 包括: 测量单元, 用于根据该测量报告确定该用户的上行配置小区; 更新单元, 用于根据该用户的上行配置小区的配置, 对该上行配置小区的资源对应 关系进行更新。 进一步的, 该更新单元, 包括: 第一更新子单元, 用于当该用户的上行资源没有进行锚点配置时, 则更新该上行配 置小区和第一用户标识的对应关系, 其中, 该第一用户标识为在该用户的上行配置小区 上为该用户分配的标识; 第二更新子单元, 用于当该用户的上行资源进行了锚点配置时, 并且该用户的上行 配置小区为锚点配置的小区时, 则更新该上行配置小区和第二用户标识的对应关系, 其 中, 该第二用户标识为在该用户的上行配置小区上为该用户分配的标识。
进一步的, 该更新单元还包括:
第三更新子单元, 用于当所述用户的上行资源进行了锚点配置, 并且所述上行配置 小区为锚点配置的小区时, 更新所述上行配置小区和第三用户标识的对应关系, 其中, 所述第三用户标识为在锚点配置的小区上为所述用户配置的标识。 其中, 该第一切换模块 402, 包括: 连接单元, 用于根据该用户的上行资源的配置, 建立该用户与该上行配置小区的连 接; 切换单元, 用于在接收到该用户发送的上行切换完成信息后, 将该用户的上行小区 切换为该上行配置小区。 进一步的, 该连接单元, 具体用于通过该用户的下行链路获取该用户的源小区与该 上行配置小区之间的定时差; 指示该用户根据该定时差, 调整接入该上行配置小区的时 间并以随机接入的方式接入该上行配置小区, 建立该用户与该上行配置小区的连接。 其中, 该第二切换模块 403 , 包括: 该第二切换模块 403 , 包括: 测量单元, 用于根据该测量报告确定该用户的下行配置小区; 配置单元, 用于在该下行配置小区上为该用户配置标识, 并对该用户的下行无线资 源进行配置; 或者; 该第二切换模块 403 , 包括: 测量单元, 用于根据该测量报告确定该用户的下行配置小区; 更新单元, 用于根据该用户的下行配置小区的配置, 对该用户的下行配置小区的资 源对应关系进行更新。 进一步的, 该更新单元, 包括: 第一更新子单元, 用于当该用户的下行资源没有进行锚点配置时, 则更新该下行配 置小区和第一用户标识的对应关系, 其中, 该第一用户标识为在该用户的下行配置小区 上为该用户分配的标识;
第二更新子单元, 用于当该用户的下行资源进行了锚点配置时, 并且该用户的下行 配置小区为锚点配置的小区时, 则更新该下行配置小区和第二用户标识的对应关系, 其 中, 该第二用户标识为在该用户的下行配置小区上为该用户分配的标识。 进一步的, 该更新单元还包括:
第六更新子单元, 用于当所述用户的下行资源进行了锚点配置, 并且所述下行配置 小区不为锚点配置的小区时,更新所述下行配置小区和第三用户标识的对应关系,其中, 所述第三用户标识为在锚点配置的小区上为所述用户配置的标识。 其中, 该第二切换模块 403 , 包括: 连接单元, 用于根据该用户的下行资源的配置, 建立该用户与该下行配置小区的连 接; 切换单元, 用于在接收到该用户发送的下行切换完成信息后, 将该用户的下行小区 切换为该下行配置小区。 本发明实施例在用户进行上行或者下行的单方向切换时,通过单方向的进行资源配 置, 实现了用户的上下行不同步的切换, 减少了用户所需维护的小区的个数, 降低了用 户和***维护的复杂性。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分步骤是可以通 过程序来指令相关的硬件来完成, 所述程序可以存储于一计算机可读取存储介质中, 所 述存储介质为计算机的软盘、 硬盘或光盘等。 以上所述仅为本发明的较佳实施例, 并不用以限制本发明, 凡在本发明的精神和原 则之内, 所作的任何修改、 等同替换、 改进等, 均应包含在本发明的保护范围之内。
Claims
1、 一种用户上下行不同步切换的方法, 其特征在于, 所述方法包括:
接收用户发送的测量报告;
根据所述接收的测量报告, 当所述用户的上行小区和下行小区中只有上行小区或者 下行小区需要进行切换时, 只对所述用户的需要切换的小区进行切换;
2、 根据权利要求 1所述的方法, 其特征在于,
所述只对所述用户的需要切换的小区进行切换, 包括:
才艮据所述测量艮告确定所述用户的配置小区, 并对所述用户的资源进行配置; 才艮据所述用户的资源的配置, 建立所述用户与所述配置小区的连接, 并在接收到所 述用户发送的切换完成信息后, 将所述用户的需要切换的小区切换为所述配置小区; 其中, 所述需要切换的小区、 所述配置小区、 所述用户的资源、 以及所述切换完成 消息均为上行的, 或者均为下行的。
3、 根据权利要求 2所述的方法, 其特征在于,
所述对所述用户的资源进行配置, 包括:
在所述配置小区上为所述用户配置标识,并对所述用户的无线资源进行配置;或者, 根据所述配置小区的配置, 对所述配置小区的资源对应关系进行更新;
其中在所述配置小区为上行配置小区时, 所述用户的无线资源为所述用户的上行无 线资源; 在所述配置小区为下行配置小区时, 所述用户的无线资源为所述用户的下行无 线资源。
4、 根据权利要求 3所述的方法, 其特征在于,
所述资源对应关系包括: 小区承载资源和小区标识与用户标识的对应关系; 或者网 络节点的承载资源和标识与小区标识以及用户标识的对应关系。
5、根据权利要求 3或 4所述的方法, 其特征在于, 所述对所述配置小区的资源对应关 系进行更新, 包括以下之一或其任意组合:
当所述用户的资源没有进行锚点配置时, 将所述配置小区的资源对应关系更新为使 用所述配置小区时使用在所述配置小区上为所述用户配置的标识;
当所述用户的资源进行了锚点配置, 并且所述配置小区为锚点配置的小区时, 将所 述配置小区的资源对应关系更新为使用所述配置小区时使用在所述配置小区上为所述 用户配置的标识;
当所述用户的资源进行了锚点配置, 并且所述配置小区不为锚点配置的小区时, 将 所述配置小区的资源对应关系更新为使用所述配置小区时使用在锚点配置的小区上为 所述用户配置的标识;
其中所述用户的资源与所述配置小区均为上行的或者均为下行的。
6、根据权利要求 2至 4中任一项所述的方法, 其特征在于, 在所述配置小区为上行配 置小区时, 所述建立用户与所述配置小区的连接, 包括:
通过所述用户的下行链路获取所述用户的源小区与所述上行配置小区之间的定时 差;
指示所述用户根据所述定时差, 调整接入所述上行配置小区的时间并以随机接入的 方式接入所述上行配置小区, 建立所述用户与所述上行配置小区的连接。
7、根据权利要求 2至 4中任一项所述的方法, 其特征在于, 在所述配置小区为下行配 置小区时,所述用户发送的切换完成信息由所述用户使用未发生变化的上行配置小区的 资源进行发送。
8、 一种用户上下行不同步切换的装置, 其特征在于, 所述装置包括:
接收模块( 401 ) , 用于接收用户发送的测量报告;
第一切换模块(402 ) , 用于根据所述接收模块(401 )接收的测量报告, 当所述用 户的上行小区和下行小区中只有上行小区需要进行切换时,则对所述用户的上行小区进 行切换;
第二切换模块(403 ) , 用于根据所述接收模块(401 )接收的测量报告, 当所述用 户的上行小区和下行小区中只有下行小区需要进行切换时,则对所述用户的下行小区进 行切换。
9、 根据权利要求 8所述的装置, 其特征在于,
所述第一切换模块(402 ) , 包括:
第一测量单元, 用于根据所述测量报告确定所述用户的上行配置小区;
第一配置单元, 用于在所述上行配置小区上为所述用户配置标识, 并对所述用户的 上行无线资源进行配置;
第一连接单元, 用于根据所述用户的上行资源的配置, 建立所述用户与所述上行配 置小区的连接;
第一切换单元, 用于在接收到所述用户发送的上行切换完成信息后, 将所述用户的 上行小区切换为所述上行配置小区;
或者, 所述第一切换模块(402 ) , 包括:
第一测量单元, 用于根据所述测量报告确定所述用户的上行配置小区;
第一更新单元, 用于根据所述用户的上行配置小区的配置, 对所述上行配置小区的 资源对应关系进行更新;
第一连接单元, 用于根据所述用户的上行资源的配置, 建立所述用户与所述上行配 置小区的连接;
第一切换单元, 用于在接收到所述用户发送的上行切换完成信息后, 将所述用户的 上行小区切换为所述上行配置小区。
10、 根据权利要求 9所述的装置, 其特征在于, 所述第一更新单元,包括以下之一或 其任意组合:
第一更新子单元, 用于当所述用户的上行资源没有进行锚点配置时, 则更新所述上 行配置小区和第一用户标识的对应关系, 其中, 所述第一用户标识为在所述上行配置小 区上为所述用户配置的标识;
第二更新子单元, 用于当所述用户的上行资源进行了锚点配置, 并且所述上行配置 小区为锚点配置的小区时, 更新所述上行配置小区和第二用户标识的对应关系, 其中, 所述第二用户标识为在所述上行配置小区上为所述用户配置的标识;
第三更新子单元, 用于当所述用户的上行资源进行了锚点配置, 并且所述上行配置 小区为锚点配置的小区时, 更新所述上行配置小区和第三用户标识的对应关系, 其中, 所述第三用户标识为在锚点配置的小区上为所述用户配置的标识。
11、 根据权利要求 9所述的装置, 其特征在于,
所述第一连接单元, 具体用于通过所述用户的下行链路获取所述用户的源小区与所 述上行配置小区之间的定时差; 指示所述用户根据所述定时差, 调整接入所述上行配置 小区的时间并以随机接入的方式接入所述上行配置小区,建立所述用户与所述上行配置 小区的连接。
12、 根据权利要求 8所述的装置, 其特征在于,
所述第二切换模块(403 ) , 包括:
第二测量单元, 用于根据所述测量报告确定所述用户的下行配置小区;
第二配置单元, 用于在所述下行配置小区上为所述用户配置标识, 并对所述用户的 下行无线资源进行配置;
第二连接单元, 用于根据所述用户的下行资源的配置, 建立所述用户与所述下行配 置小区的连接;
第二切换单元, 用于在接收到所述用户发送的下行切换完成信息后, 将所述用户的 下行小区切换为所述下行配置小区;
或者; 所述第二切换模块(403 ) , 包括:
第二测量单元, 用于根据所述测量报告确定所述用户的下行配置小区;
第二更新单元, 用于根据所述用户的下行配置小区的配置, 对所述用户的下行配置 小区的资源对应关系进行更新;
第二连接单元, 用于根据所述用户的下行资源的配置, 建立所述用户与所述下行配 置小区的连接;
第二切换单元, 用于在接收到所述用户发送的下行切换完成信息后, 将所述用户的 下行小区切换为所述下行配置小区。
13、 根据权利要求 12所述的装置, 其特征在于, 所述第二更新单元,包括以下之一或 其任意组合:
第四更新子单元, 用于当所述用户的下行资源没有进行锚点配置时, 更新所述下行 配置小区和第一用户标识的对应关系, 其中, 所述第一用户标识为在所述下行配置小区 上为所述用户配置的标识;
第五更新子单元, 用于当所述用户的下行资源进行了锚点配置, 并且所述下行配置 小区为锚点配置的小区时, 更新所述下行配置小区和第二用户标识的对应关系, 其中, 所述第二用户标识为在所述下行配置小区上为所述用户配置的标识;
第六更新子单元, 用于当所述用户的下行资源进行了锚点配置, 并且所述下行配置 小区不为锚点配置的小区时,更新所述下行配置小区和第三用户标识的对应关系,其中, 所述第三用户标识为在锚点配置的小区上为所述用户配置的标识。
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CN102547928A (zh) * | 2010-12-31 | 2012-07-04 | 华为技术有限公司 | 服务节点选择接入方法、装置和*** |
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US9143984B2 (en) | 2012-04-13 | 2015-09-22 | Intel Corporation | Mapping of enhanced physical downlink control channels in a wireless communication network |
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EP2869656B1 (en) | 2012-07-23 | 2018-05-30 | Huawei Technologies Co., Ltd. | Data offloading method, macro base station, and small node |
US9699701B2 (en) * | 2012-08-10 | 2017-07-04 | Qualcomm Incorporated | Mobility operation in LTE |
CN104685801B (zh) * | 2012-08-28 | 2018-11-02 | Lg电子株式会社 | 在应用载波聚合技术的无线通信***中通过终端发送和接收信号的方法和装置 |
CN103716872B (zh) * | 2012-10-09 | 2017-11-10 | 中兴通讯股份有限公司 | Tdd***中上行同步调整方法及装置 |
CN105264952A (zh) * | 2014-05-08 | 2016-01-20 | 华为技术有限公司 | 一种小区切换的方法、装置及*** |
JP6672445B2 (ja) * | 2018-12-18 | 2020-03-25 | 株式会社Nttドコモ | 移動通信システム |
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EP2375809A4 (en) | 2011-12-14 |
EP2375809A1 (en) | 2011-10-12 |
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