WO2014113963A1 - 上行资源分配方法、ue及基站 - Google Patents

上行资源分配方法、ue及基站 Download PDF

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Publication number
WO2014113963A1
WO2014113963A1 PCT/CN2013/070963 CN2013070963W WO2014113963A1 WO 2014113963 A1 WO2014113963 A1 WO 2014113963A1 CN 2013070963 W CN2013070963 W CN 2013070963W WO 2014113963 A1 WO2014113963 A1 WO 2014113963A1
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WO
WIPO (PCT)
Prior art keywords
logical channel
cell
target cell
channel group
uplink
Prior art date
Application number
PCT/CN2013/070963
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English (en)
French (fr)
Inventor
李明超
熊新
宋巍巍
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2013/070963 priority Critical patent/WO2014113963A1/zh
Priority to CN201380001404.6A priority patent/CN104081856B/zh
Publication of WO2014113963A1 publication Critical patent/WO2014113963A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02Power saving arrangements
    • H04W52/0209Power saving arrangements in terminal devices
    • H04W52/0212Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
    • H04W52/0216Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02Power saving arrangements
    • H04W52/0209Power saving arrangements in terminal devices
    • H04W52/0225Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0229Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to an uplink resource allocation method, a user equipment (UE), and a base station.
  • UE user equipment
  • the available bandwidth can be extended for the UE by the carrier aggregation technology, that is, the bandwidth of the same base station (e B) is narrow and continuous. Or a discontinuous carrier is aggregated, where each carrier corresponds to one cell, and a plurality of cells serving the UE may be configured with one primary serving cell (Primary Serving Cell), and the remaining cells are secondary serving cells (Secondary Serving Cell) ).
  • Primary Serving Cell Primary Serving Cell
  • Secondary Serving Cell secondary serving cells
  • the UE transmits services with different Quality of Service (QoS) requirements through different logical channels.
  • QoS Quality of Service
  • a UE equipped with Carrier Aggregation (CA) when the UE has uplink service transmission but no uplink transmission resources, the UE needs to send a scheduling request (Scheduling Request) to the Pcell before sending a buffer status report (Buffer Status Report).
  • BSR buffer Status Report
  • the base station selects an Scell for the UE, the logical channel group identifier included in the BSR and the uplink buffer data volume in the buffer area of the logical channel group are forwarded to the deactivated Scell, so that the Scell allocates the uplink transmission to the UE.
  • the Pcell sends a Medium Access Control (MAC) control element (Control Element, CE) to the UE, and the UE activates the corresponding Scell according to the Scell identifier, and monitors the uplink allocated by the Scell for the UE.
  • MAC Medium Access Control
  • CE Control Element
  • the inventor discovered during the research on the prior art that the UE needs to acquire uplink transmission resources.
  • an uplink resource allocation method is provided, where the method includes:
  • the user equipment UE acquires a target cell corresponding to a logical channel of the uplink service, where the target cell is in a deactivated state;
  • the UE activates the target cell
  • the UE And receiving, by the UE, the uplink transmission resource allocated by the target cell according to the identifier of the logical channel group where the logical channel is located and the amount of uplink buffer data of the logical channel group.
  • the method before the UE activates the target cell, the method further includes:
  • the UE sends a buffer status report BSR to the first cell, so that the first cell forwards the identifier of the logical channel group and the uplink buffer data volume of the logical channel group included in the BSR to the target cell.
  • the UE After the UE sends the BSR to the first cell, the UE monitors the physical downlink control channel PDCCH of the target cell; or
  • the UE After receiving the feedback message sent by the first cell and successfully receiving the BSR, the UE listens to the PDCCH of the target cell.
  • the method further includes: sending, by the UE, a scheduling request SR to the first cell by using a physical uplink control channel, the PUCCH, to request the first cell to allocate an uplink transmission resource for transmitting the BSR to the UE;
  • the method further includes: returning, between the UE and the first cell, to a state before sending the SR.
  • the first cell Before the UE sends the SR, the first cell is in a discontinuous reception DRX state, and after the UE sends a BSR to the first cell, returns to the DRX state;
  • the first cell is in a deactivated state, and after the UE sends a BSR to the first cell, the first cell is deactivated.
  • the UE is out of synchronization with the target cell, and after the UE activates the target cell, the method further includes: When the UE randomly accesses the target cell, the UE sends a message 3 carrying a BSR to the target cell, where the BSR includes an identifier of the logical channel group and an uplink buffer data volume of the logical channel group.
  • the method further includes: the UE saves the correspondence between the logical channel of the service and the cell Relationship
  • the acquiring, by the UE, the target cell corresponding to the logical channel of the uplink service is: the UE acquiring the target cell corresponding to the logical channel of the uplink service by searching for the corresponding relationship.
  • the second aspect provides an uplink resource allocation method, where the method includes:
  • the first base station obtains, by the first base station, an identifier of a logical channel group where the logical channel of the uplink service of the UE is located, and an amount of the uplink buffer data of the logical channel group, where the first base station is a base station where the target cell corresponding to the logical channel of the uplink service is located
  • the target cell is in a deactivated state
  • the first base station allocates an uplink transmission resource to the UE according to the identifier of the logical channel group and the uplink buffer data volume of the logical channel group;
  • the first base station After the UE activates the target cell, the first base station sends an uplink transmission resource allocated to the UE to the UE.
  • the identifier of the logical channel group in which the first base station acquires the logical channel of the uplink service of the UE and the uplink buffer data volume of the logical channel group include :
  • the amount of the buffered data is information included in the BSR that is sent by the UE to the second base station, and the second base station is a base station where the first cell of the UE is located.
  • the identifier of the logical channel group in which the first base station acquires the logical channel of the uplink service of the UE and the uplink buffer data volume of the logical channel group include :
  • the first base station When the UE is out of synchronization with the target cell, the first base station receives a message 3 of the BSR that is sent to the target cell when the UE randomly accesses the target cell, where the BSR is in the BSR.
  • the identifier of the logical channel group and the amount of uplink buffer data of the logical channel group are included.
  • a UE in a third aspect, includes:
  • An acquiring unit configured to acquire a target cell corresponding to a logical channel of an uplink service, where the target cell is located Deactivated state;
  • An activation unit configured to activate the target cell acquired by the acquiring unit
  • a receiving unit configured to receive, by the target unit, an uplink transmission resource allocated by the target cell to the UE according to an identifier of a logical channel group where the logical channel is located and an uplink buffer data volume of the logical channel group.
  • the UE further includes: a first sending unit, configured to send a BSR to the first cell, to enable the first cell to use the BSR
  • a first sending unit configured to send a BSR to the first cell, to enable the first cell to use the BSR
  • the identifier of the logical channel group included in the logical channel group and the uplink buffer data volume of the logical channel group are forwarded to the target cell acquired by the acquiring unit.
  • the activating unit is specifically configured to: after the first sending unit sends a BSR to the first cell, And listening to the PDCCH of the target cell, or after receiving the feedback message that is successfully received by the first cell and receiving the BSR, listening to the PDCCH of the target cell.
  • the first sending unit is further used Sending, by the PUCCH, the SR to the first cell, to request the first cell to allocate, to the UE, an uplink transmission resource for transmitting the BSR;
  • the UE further includes: a recovery unit, configured to: after the first sending unit sends a BSR to the first cell, restore the UE and the first cell to the first sending unit before sending the SR status.
  • a recovery unit configured to: after the first sending unit sends a BSR to the first cell, restore the UE and the first cell to the first sending unit before sending the SR status.
  • the method further includes:
  • a second sending unit configured to: when the UE is out of synchronization with the target cell, when the target cell is randomly accessed, send a message 3 carrying a BSR to the target cell, where the BSR includes the logical channel group The identifier and the amount of upstream buffer data of the logical channel group.
  • the UE further includes:
  • a saving unit configured to save a correspondence between a logical channel and a cell of the service
  • the acquiring unit is specifically configured to obtain a target cell corresponding to the logical channel of the uplink service by searching the corresponding relationship saved by the saving unit.
  • a UE in a fourth aspect, includes: a processor and a wireless transceiver,
  • the processor is configured to acquire a target cell corresponding to a logical channel of an uplink service, where the target cell is located In the deactivated state, the target cell is activated;
  • the wireless transceiver is configured to receive an uplink transmission resource allocated by the target cell to the UE according to an identifier of a logical channel group where the logical channel is located and an uplink buffer data volume of the logical channel group.
  • the wireless transceiver is further configured to: before the processor activates the target cell, send a BSR to the first cell, so that the first cell identifies the logical channel group included in the BSR And the amount of uplink buffer data of the logical channel group is forwarded to the target cell.
  • the processor is specifically configured to: after the wireless transceiver sends a BSR to the first cell, listen to a physical downlink control channel PDCCH of the target cell, or receive the foregoing at the wireless transceiver. After successfully receiving the feedback message of the BSR, the PDCCH of the target cell is monitored by a cell.
  • the wireless transceiver is further configured to send an SR to the first cell by using a PUCCH, to request the first cell to allocate, by the first cell, an uplink transmission resource for transmitting the BSR;
  • the processor is further configured to resume the state before the sending of the SR between the first cell and the first cell after the wireless transceiver sends a BSR to the first cell.
  • the wireless transceiver is further configured to: when the UE randomly accesses the target cell, send a message 3 carrying a BSR to the target cell, where the BSR includes the identifier of the logical channel group and the The amount of upstream cached data for the logical channel group.
  • the UE further includes: a memory, configured to store a correspondence between a logical channel and a cell of the service; and the processor is configured to obtain a logical channel with the uplink service by searching the corresponding relationship saved by the memory Corresponding target cell.
  • a base station is provided, where the base station is used as the first base station, and includes:
  • An acquiring unit configured to acquire an identifier of a logical channel group where a logical channel of the uplink service of the UE is located, and an amount of uplink buffer data of the logical channel group, where the first base station is a target corresponding to the logical channel of the uplink service
  • the base station where the cell is located, the target cell is in a deactivated state
  • An allocating unit configured to allocate an uplink transmission resource to the UE according to the identifier of the logical channel group acquired by the acquiring unit and the amount of uplink buffer data of the logical channel group;
  • a sending unit configured to send the uplink transmission resource allocated by the allocation unit to the UE to the UE after the UE activates the target cell.
  • the acquiring unit includes at least one of the following units:
  • a first acquiring subunit configured to receive an identifier of a logical channel group where the logical channel of the uplink service sent by the second base station is located, and an amount of uplink buffer data of the logical channel group, where the identifier of the logical channel group and the The amount of the uplink buffer data of the logical channel group is the information included in the BSR sent by the UE to the second base station, and the second base station is the base station where the first cell of the UE is located;
  • a second acquiring sub-unit configured to receive, when the UE is out of synchronization with the target cell, a message carrying the BSR sent to the target cell when the UE randomly accesses the target cell, where
  • the BSR includes an identifier of the logical channel group and an uplink buffer data amount of the logical channel group.
  • a base station is provided, where the base station is a first base station, and includes: a processor and a transceiver, where the processor is configured to acquire an identifier of a logical channel group where a logical channel of an uplink service of the UE is located, and the The amount of uplink buffer data of the logical channel group, the first base station is a base station where the target cell corresponding to the logical channel of the uplink service is located, and the target cell is in a deactivated state, according to the identifier and the location of the logical channel group An amount of uplink buffer data of the logical channel group, where the UE allocates an uplink transmission resource;
  • the transceiver is configured to send an uplink transmission resource allocated to the UE to the UE after the UE activates the target cell.
  • the processor is configured to receive, by using the transceiver, an identifier of a logical channel group where the logical channel of the uplink service sent by the second base station is located, and an amount of uplink buffer data of the logical channel group, where the logical channel is
  • the identifier of the group and the amount of the uplink buffer data of the logical channel group are information included in the BSR sent by the UE to the second base station, where the second base station is a base station where the first cell of the UE is located; or Specifically, when the UE is out of synchronization with the target cell, receiving, by the transceiver, a message carrying the BSR sent by the UE to the target cell when the UE accesses the target cell randomly.
  • the BSR includes an identifier of the logical channel group and an uplink buffer data amount of the logical channel group.
  • the UE acquires a target cell corresponding to the logical channel of the uplink service, the target cell is in a deactivated state, the UE activates the target cell, and receives the logical channel where the target cell is located according to the logical channel.
  • the UE can directly activate the target cell according to the correspondence between the logical channel and the target cell, so that the base station does not need to notify the UE to activate the cell by using an activation command such as a MAC CE, thereby saving transmission resources of the system and reducing The delay in obtaining the downlink transmission resource by the UE.
  • an activation command such as a MAC CE
  • FIG. 1A is a flowchart of an embodiment of an uplink resource allocation method according to the present invention.
  • FIG. 1B is a flowchart of another embodiment of an uplink resource allocation method according to the present invention.
  • FIG. 2 is a flowchart of another embodiment of an uplink resource allocation method according to the present invention.
  • FIG. 3 is a flowchart of another embodiment of an uplink resource allocation method according to the present invention.
  • FIG. 4 is a block diagram of an embodiment of a UE according to the present invention.
  • FIG. 5 is a block diagram of another embodiment of a UE according to the present invention.
  • FIG. 6 is a block diagram of another embodiment of a UE according to the present invention.
  • FIG. 7 is a block diagram of another embodiment of a UE according to the present invention.
  • FIG. 8 is a block diagram of another embodiment of a UE according to the present invention.
  • FIG. 9 is a block diagram of an embodiment of a base station according to the present invention.
  • FIG. 10 is a block diagram of another embodiment of a base station of the present invention. detailed description
  • the following embodiments of the present invention provide an uplink resource allocation method, a UE, and a base station.
  • a scenario of small cell deployment has been added to existing communication systems. For example, in a place with a large number of UEs, a cell with a small coverage area is deployed at a high density. These cells may be referred to as small cells, and base stations corresponding to these small cells are called small e Bs, usually in one. Within the coverage of the macro base station (Macro eNB), there may be multiple small bases Station.
  • macro base station Micro eNB
  • two typical applications in a small cell deployment scenario are as follows:
  • Separating the control plane from the transmission plane of the UE Maintaining the control plane of the UE, that is, the Radio Resource Control (RRC) connection, on the macro base station, and maintaining the user plane transmission of the UE on the small base station, thereby making the UE
  • the data transmission can be performed by using a wide bandwidth of the small base station, and the macro base station performs unified control and management, thereby simplifying mobility management when the UE moves between small base stations.
  • RRC Radio Resource Control
  • the UE can transmit different services through different cells according to different service QoS requirements. For example, a voice over Internet Protocol (VoIP) service with a higher delay and a lower transmission bandwidth is transmitted through a macro base station, and a file transfer protocol with lower delay requirements and higher transmission bandwidth requirements is required ( File Transfer Protocol, FTP) Traffic is transmitted through small base stations.
  • VoIP voice over Internet Protocol
  • FTP File Transfer Protocol
  • FIG. 1A is a flowchart of an embodiment of an uplink resource allocation method according to the present invention.
  • the embodiment describes an uplink resource allocation process from a UE side:
  • Step 101 The UE acquires a target cell corresponding to a logical channel of the uplink service, where the target cell is in a deactivated state.
  • the application may be applied to a small cell deployment scenario as described above.
  • a logical channel of each service is mapped to a specific cell and transmitted in the mapped cell. Therefore, the UE can obtain the cell corresponding to the logical channel of the uplink service as the target cell when there is an uplink service to be transmitted according to the one-to-one correspondence between the different logical channels and the cell.
  • the uplink resource allocation process when the target cell is in the deactivated state.
  • Step 102 The UE activates the target cell.
  • the UE may send the BSR to the first cell, so that the first cell sets the logical channel of the uplink service included in the BSR.
  • the identifier of the logical channel group and the amount of the uplink buffer data of the logical channel group are forwarded to the target cell, and after the BSR is sent to the first cell, the physical downlink control channel (PDCCH) of the target cell is monitored, or received.
  • the first cell listens to the PDCCH of the target cell.
  • the UE if the UE is still out of synchronization with the target cell, the UE starts to monitor the target.
  • the PDCCH of the target cell and the UE needs to randomly access the target cell to implement uplink synchronization.
  • the UE sends a message 3 carrying the BSR to the target cell, where the BSR includes the logical channel group where the logical channel of the uplink service is located.
  • the UE may further transmit uplink data according to the allocated uplink transmission resource on the uplink shared channel (UL-SCH) of the target cell. And transmitting a Sounding Reference Signal (SRS) to the target cell, and reporting a Channel Quality Indicator (CQI), a Precoding Matrix Index (PMI), and a Rank Indicator to the target cell.
  • SRS Sounding Reference Signal
  • CQI Channel Quality Indicator
  • PMI Precoding Matrix Index
  • Rank Indicator to the target cell.
  • the RI), the Precoding Type Indicator (PTI), and the like are not limited in this embodiment of the present invention.
  • Step 103 The UE receives an uplink transmission resource allocated by the target cell according to the identifier of the logical channel group and the uplink buffer data volume of the logical channel group.
  • the process in which the base station where the target cell is located allocates the uplink transmission resource to the UE according to the identifier of the logical channel group where the logical channel of the uplink service is located and the amount of the uplink buffer data of the logical channel group is consistent with the prior art. Let me repeat.
  • FIG. 1B it is a flowchart of another embodiment of an uplink resource allocation method according to the present invention.
  • the embodiment describes an uplink resource allocation process from a base station side:
  • Step 111 The first base station acquires an identifier of a logical channel group in which the logical channel of the uplink service of the UE is located, and an uplink buffer data amount of the logical channel group, where the first base station is a base station where the target cell corresponding to the logical channel of the uplink service is located, The target cell is in a deactivated state.
  • the first base station receives the identifier of the logical channel group where the logical channel of the uplink service of the UE sent by the second base station is located, and the amount of the uplink buffer data of the logical channel group, and the identifier of the logical channel group.
  • the amount of the uplink buffer data of the logical channel group is information included in the BSR sent by the UE to the second base station, where the second base station is the base station where the first cell of the UE is located.
  • the first base station when the UE is out of synchronization with the target cell, the first base station receives the BSR-carrying message 3 that is sent to the target cell when the UE is in the random access target cell, where the BSR includes the UE.
  • Step 112 The first base station according to the identifier of the logical channel group and the amount of uplink buffer data of the logical channel group, Allocate uplink transmission resources for the UE.
  • the process in which the first base station where the target cell is located is configured to allocate the uplink transmission resource to the UE according to the identifier of the logical channel group and the uplink buffer data of the logical channel group is consistent with the prior art, and details are not described herein again.
  • Step 113 After the UE activates the target cell, the first base station sends the uplink transmission resource allocated to the UE to the UE.
  • the UE can directly activate the target cell according to the corresponding relationship between the logical channel and the target cell, so that the base station does not need to notify the UE to activate the cell by using an activation command such as a MAC CE, thereby saving the transmission resource of the system and reducing the transmission resource.
  • the UE obtains the delay of the downlink transmission resource.
  • FIG. 2 it is a flowchart of another embodiment of an uplink resource allocation method according to the present invention. In this embodiment, a target cell is assumed to be in a deactivated state:
  • Step 201 The UE saves a correspondence between a logical channel of the service and the cell.
  • This embodiment can be applied to a scenario in which a small cell is deployed.
  • the logical channel of each service is mapped to a specific cell and transmitted in the mapped cell. Therefore, the UE can pre-store the correspondence between logical channels and cells of different services, and usually one logical channel corresponds to one cell.
  • Step 202 When the UE has an uplink service transmission, the target cell corresponding to the logical channel for obtaining the uplink service is the cell 2, and the cell 2 is in the deactivated state.
  • Step 203 The UE sends a BSR to the base station 1 where the cell 1 to which the uplink transmission resource is allocated and allocated to the UE, where the BSR includes the identifier of the logical channel group where the logical channel of the uplink service is located and the uplink buffer data of the logical channel group. the amount.
  • the UE needs to first pass the physical uplink control channel (Physical Uplink Control Channel, PUCCH) before transmitting the BSR to the base station 1.
  • PUCCH Physical Uplink Control Channel
  • SR Scheduling Request
  • the UE and the cell 1 can be restored to the state before the SR is sent.
  • the cell 1 is in the discontinuous reception (DRX) state, and after the UE sends the BSR to the cell 1, the UE returns to the DRX state; before the UE sends the SR, the cell 1 is in the deactivated state. After the UE sends the BSR to the cell 1, the cell 1 is deactivated.
  • DRX discontinuous reception
  • Step 204 The base station 1 forwards the identifier of the logical channel group where the logical channel of the uplink service is located and the amount of the uplink buffer data of the logical channel group to the base station 2 where the cell 2 is located.
  • the base station 1 when the BSR includes only the identifier of the logical channel group where the logical channel of the uplink service is located, When the amount of data of the logical channel group is buffered, the base station 1 directly forwards the identifier of the logical channel group in which the logical channel of the uplink service is located and the amount of the uplink buffer data of the logical channel group to the base station 2; When the identifiers of the plurality of logical channel groups and the corresponding uplink buffer data amount of the plurality of logical channel groups, the base station 1 may determine, according to the prior art, a target cell corresponding to each logical channel group of the plurality of logical channel groups, thereby The identifier of the logical channel group in which the logical channel of the uplink service is located and the amount of the uplink buffer data of the logical channel group are forwarded to the base station 2 where the target cell is located, or the UE may also increase the BSR when transmitting the BSR to the base station 1.
  • the indication IE is used to notify the base station 1 of the identifier of the target cell corresponding to the logical channel group in which the logical channel of the uplink service is located, so that the base station 1 can set the identifier of the logical channel group and the uplink of the logical channel group according to the indication of the IE.
  • the amount of buffered data is forwarded to the base station 2 corresponding to the target cell.
  • Step 205 The UE monitors the PDCCH of the cell 2.
  • the UE may start to monitor the PDCCH of the cell 2 immediately after transmitting the BSR to the cell 1, and may also monitor the PDCCH of the cell 2 after receiving the feedback message of the BSR successfully received by the cell 1.
  • Step 206 The base station 2 allocates an uplink transmission resource to the UE according to the identifier of the logical channel group where the logical channel of the uplink service is located and the amount of the uplink buffer data of the logical channel group.
  • the process in which the base station 2 allocates the uplink transmission resource to the UE according to the identifier of the logical channel and the data volume of the uplink service is consistent with the prior art, and details are not described herein again.
  • Step 207 The base station 2 sends an uplink grant for indicating the uplink transmission resource to the UE.
  • Step 208 The UE transmits an uplink service according to the uplink transmission resource.
  • the UE can directly activate the target cell according to the corresponding relationship between the logical channel and the target cell, so that the base station does not need to notify the UE to activate the cell by using an activation command such as a MAC CE, thereby saving the transmission resource of the system and reducing the transmission resource.
  • the UE obtains the delay of the downlink transmission resource.
  • FIG. 3 it is a flowchart of another embodiment of an uplink resource allocation method according to the present invention. In this embodiment, assuming that a target cell is in a deactivated state, and the UE and the target cell are out of synchronization:
  • Step 301 The UE saves a correspondence between a logical channel of the service and the cell.
  • This embodiment can be applied to a scenario in which a small cell is deployed.
  • the logical channel of each service is mapped to a specific cell and transmitted in the mapped cell. Therefore, the UE can pre-store the correspondence between logical channels and cells of different services, and usually one logical channel corresponds to one cell.
  • Step 302 When the UE has an uplink service transmission, the target cell corresponding to the logical channel of the uplink service is obtained by searching for the corresponding relationship, and the cell 2 is in a deactivated state, and the UE and the cell 2 are out of synchronization.
  • the UE after the UE searches for the cell 2 corresponding to the logical channel of the uplink service to be transmitted, the UE starts monitoring the PDCCH of the cell 2 to activate the cell 2.
  • Step 304 The UE initiates a random access to the base station 2 where the cell 2 is located to implement the uplink synchronization with the cell 2.
  • the UE sends a message 3 carrying the BSR to the cell 2, where the BSR includes the uplink service.
  • the UE is required to initiate a random access procedure to the cell 2, and the random access process is consistent with the prior art, and details are not described herein again.
  • the message carries the BSR in the message 3.
  • the BSR includes the identifier of the logical channel group where the logical channel of the uplink service is located and the amount of the uplink buffer data of the logical channel group. .
  • Step 305 The base station 2 allocates an uplink transmission resource to the UE according to the identifier of the logical channel group where the logical channel of the uplink service included in the message 3 is located and the amount of the uplink buffer data of the logical channel group.
  • the process in which the base station 2 allocates the uplink transmission resource to the UE according to the identifier of the logical channel group in which the logical channel of the uplink service is located and the amount of the uplink buffer data of the logical channel group is consistent with the prior art, and details are not described herein again.
  • Step 306 The base station 2 sends an uplink grant for indicating the uplink transmission resource to the UE.
  • Step 307 The UE transmits an uplink service according to the uplink transmission resource.
  • the UE can directly activate the target cell according to the corresponding relationship between the logical channel and the target cell, so that the base station does not need to notify the UE to activate the cell by using an activation command such as a MAC CE, thereby saving the transmission resource of the system and reducing the transmission resource.
  • the UE obtains the delay of the downlink transmission resource.
  • the present invention also provides an embodiment of the UE and the base station.
  • FIG. 4 it is a block diagram of an embodiment of a UE according to the present invention:
  • the UE includes: an obtaining unit 410, an activating unit 420, and a receiving unit 430.
  • the obtaining unit 410 is configured to acquire a target cell corresponding to the logical channel of the uplink service, where the target cell is in a deactivated state;
  • the activation unit 420 is configured to activate the target cell acquired by the acquiring unit 410.
  • the receiving unit 430 is configured to receive, by the target cell activated by the activation unit 420, an uplink transmission allocated to the UE according to an identifier of a logical channel group where the logical channel is located and an uplink buffer data volume of the logical channel group. Resources.
  • FIG. 5 it is a block diagram of another embodiment of a UE according to the present invention.
  • the UE includes: an obtaining unit 510, a first transmitting unit 520, an activating unit 530, and a receiving unit 540.
  • the acquiring unit 510 is configured to acquire a target cell corresponding to the logical channel of the uplink service, where the target cell is in a deactivated state;
  • the first sending unit 520 is configured to send a BSR to the first cell, so that the first cell forwards the identifier of the logical channel group included in the BSR and the uplink buffer data volume of the logical channel group to the first cell.
  • An activation unit 530 configured to activate the target cell acquired by the acquiring unit 520;
  • the receiving unit 540 is configured to receive, by the target unit activated by the activation unit 530, an uplink transmission allocated to the UE according to an identifier of a logical channel group where the logical channel is located and an uplink buffer data volume of the logical channel group. Resources.
  • the activation unit 530 may be specifically configured to: after the first sending unit 520 sends a BSR to the first cell, monitor the PDCCH of the target cell, or receive the success of sending by the first cell. After receiving the feedback message of the BSR, the PDCCH of the target cell is monitored.
  • the first sending unit 520 is further configured to send, by using a PUCCH, an SR to the first cell, to request the first cell to allocate, by the first cell, an uplink transmission resource that transmits the BSR;
  • the UE may further include: (not shown in FIG. 5): a recovery unit, configured to: after the first sending unit 520 sends a BSR to the first cell, between the UE and the first cell Reverting to the state before the first transmitting unit 520 transmits the SR.
  • a recovery unit configured to: after the first sending unit 520 sends a BSR to the first cell, between the UE and the first cell Reverting to the state before the first transmitting unit 520 transmits the SR.
  • 6 is a block diagram of another embodiment of a UE according to the present invention.
  • the UE includes: an obtaining unit 610, an activating unit 620, a second transmitting unit 630, and a receiving unit 640.
  • the acquiring unit 610 is configured to acquire a target cell corresponding to the logical channel of the uplink service, where the target cell is in a deactivated state;
  • the activation unit 620 is configured to activate the target cell acquired by the acquiring unit 610;
  • the second sending unit 630 is configured to: when the UE is out of synchronization with the target cell, when the target cell is randomly calculated, send a message 3 carrying the BSR to the target cell acquired by the acquiring unit 610, where the BSR is in the BSR. And including an identifier of the logical channel group and an uplink buffer data amount of the logical channel group;
  • the receiving unit 640 is configured to receive, by the activation unit 620, the target cell that is allocated to the UE according to an identifier of a logical channel group where the logical channel is located and an uplink buffer data volume of the logical channel group. Uplink transmission resources.
  • FIG. 7 a block diagram of another embodiment of a UE according to the present invention.
  • the UE includes: a saving unit 710, an obtaining unit 720, an activating unit 730, and a receiving unit 740.
  • the saving unit 710 is configured to save a correspondence between a logical channel and a cell of the service;
  • the obtaining unit 720 is configured to obtain a target cell corresponding to the logical channel of the uplink service by searching the corresponding relationship saved by the saving unit 710.
  • An activation unit 730 configured to activate the target cell acquired by the acquiring unit 720;
  • the receiving unit 740 is configured to receive, by the activation unit 730, the uplink cell that is allocated to the UE according to the identifier of the logical channel group where the logical channel is located and the uplink buffer data volume of the logical channel group. Resources.
  • FIG. 8 it is a block diagram of another embodiment of a UE according to the present invention.
  • the UE includes: a processor 810 and a wireless transceiver 820.
  • the processor 810 is configured to acquire a target cell corresponding to a logical channel of an uplink service, where the target cell is in a deactivated state, and the target cell is activated;
  • the radio transceiver 820 is configured to receive, by the target cell, an uplink transmission resource allocated to the UE according to an identifier of a logical channel group where the logical channel is located and an uplink buffer data volume of the logical channel group.
  • the wireless transceiver 820 is further configured to: before the processor activates the target cell, send a BSR to the first cell, so that the first cell includes the location included in the BSR.
  • the identifier of the logical channel group and the amount of uplink buffer data of the logical channel group are forwarded to the target cell.
  • the processor 810 is specifically configured to: after the wireless transceiver 820 sends a BSR to the first cell, monitor a physical downlink control channel PDCCH of the target cell, or After receiving the feedback message sent by the first cell and successfully receiving the BSR, the 820 may monitor the PDCCH of the target cell.
  • the wireless transceiver 820 is further configured to send to the first cell by using a PUCCH.
  • the processor 810 is further configured to resume the state before the sending of the SR between the first cell and the first cell after the wireless transceiver 820 sends the BSR to the first cell.
  • the wireless transceiver 810 is further configured to: when the UE randomly accesses the target cell, send a message 3 carrying a BSR to the target cell, where the BSR includes the logical channel.
  • the UE may further include: (not shown in FIG. 8): a memory, configured to save a correspondence between a logical channel and a cell of the service; and correspondingly, the processor 810 may be specifically configured to search through the Determining the correspondence stored in the memory, and acquiring a target cell corresponding to the logical channel of the uplink service.
  • FIG. 9 a block diagram of an embodiment of a base station according to the present invention.
  • the base station serves as a first base station, and includes: an obtaining unit 910, an allocating unit 920, and a sending unit 930.
  • the acquiring unit 910 is configured to obtain an identifier of a logical channel group where the logical channel of the uplink service of the UE is located, and an amount of uplink buffer data of the logical channel group, where the first base station is corresponding to the logical channel of the uplink service.
  • the allocating unit 920 is configured to allocate an uplink transmission resource to the UE according to the identifier of the logical channel group acquired by the acquiring unit 910 and the amount of uplink buffer data of the logical channel group.
  • the sending unit 930 is configured to send the uplink transmission resource allocated by the allocating unit 920 to the UE to the UE after the UE activates the target cell.
  • the obtaining unit 910 may include at least one of the following units (not shown in FIG. 9): a first acquiring subunit, configured to receive a logical channel where the logical channel of the uplink service sent by the second base station is located.
  • the identifier of the group and the amount of uplink buffer data of the logical channel group, the identifier of the logical channel group and the amount of uplink buffer data of the logical channel group are information included in a BSR sent by the UE to the second base station
  • the second base station is a base station where the first cell of the UE is located;
  • a second acquiring sub-unit configured to receive, when the UE is out of synchronization with the target cell, a message carrying the BSR sent to the target cell when the UE randomly accesses the target cell, where
  • the BSR includes an identifier of the logical channel group and an uplink buffer data amount of the logical channel group.
  • the base station serves as a first base station, and includes: a processor 1010 and a transceiver 1020.
  • the processor 1010 is configured to obtain an identifier of a logical channel group where the logical channel of the uplink service of the UE is located, and an amount of uplink buffer data of the logical channel group, where the first base station is a logical channel with the uplink service. And corresponding to the base station where the target cell is located, the target cell is in a deactivated state, and allocates an uplink transmission resource to the UE according to the identifier of the logical channel group and the uplink buffer data volume of the logical channel group;
  • the transceiver 1020 is configured to send an uplink transmission resource allocated to the UE to the UE after the UE activates the target cell.
  • the processor 1010 is specifically configured to receive, by using the transceiver, a second base station to send
  • the identifier of the logical channel group in which the logical channel of the uplink service is located and the amount of uplink buffer data in the logical channel group, the identifier of the logical channel group and the amount of uplink buffer data of the logical channel group are the UE direction
  • the amount of upstream cache data is specifically configured to receive, by using the transceiver, a second base station to send The identifier of the logical channel group in
  • the UE obtains the target cell corresponding to the logical channel of the uplink service, the target cell is in the deactivated state, the UE activates the target cell, and receives the identifier of the logical channel group where the target cell is located according to the logical channel of the uplink service.
  • the amount of uplink buffer data of the logical channel group is an uplink transmission resource allocated by the UE.
  • the UE can directly activate the target cell according to the correspondence between the logical channel and the target cell, so that the base station does not need to notify the UE to activate the cell by using an activation command such as a MAC CE, thereby saving transmission resources of the system and reducing The delay in obtaining the downlink transmission resource by the UE.
  • the techniques in the embodiments of the present invention can be implemented by means of software plus a necessary general hardware platform. Based on such understanding, the technical solution in the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product, which may be stored in a storage medium such as a ROM/RAM. , a disk, an optical disk, etc., including instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform the methods described in various embodiments of the present invention or portions of the embodiments.
  • a computer device which may be a personal computer, server, or network device, etc.

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Abstract

上行资源分配方法、UE及基站,所述方法包括:用户设备UE获取与上行业务的逻辑信道对应的目标小区,所述目标小区处于去激活状态;UE激活所述目标小区;UE接收所述目标小区根据所述逻辑信道所在的逻辑信道组的标识和所述逻辑信道组的上行缓存数据量,为所述UE分配的上行传输资源。本发明实施例中,UE可以根据逻辑信道与目标小区的对应关系,直接激活目标小区,从而无需基站通过例如MAC CE等激活命令通知UE所要激活的小区,因此节省了系统的传输资源,减少了UE获取到下行传输资源的时延。

Description

上行资源分配方法、 UE及基站
技术领域 本发明涉及通信技术领域, 特别涉及上行资源分配方法、 用户设备 (User Equipment, UE) 及基站。 背景技术
在演进的长期演进(Long Term Evolution- Advanced, LTE-A)系统中, 可以通过 载波聚合技术为 UE扩展可使用的带宽, 即将同一个基站 (e B) 下的多个带宽较窄 的连续, 或者不连续的载波聚合在一起, 其中, 每个载波对应一个小区, 为 UE提供 服务的多个小区中, 可以配置一个主服务小区(Primary Serving Cell), 其余小区为辅 助服务小区 (Secondary Serving Cell)。
现有技术中, UE通过不同的逻辑信道传输具有不同服务质量(Quality of Service, QoS) 需求的业务。 对于配备了载波聚合 (Carrier Aggregation, CA) 的 UE, 当 UE 有上行业务传输, 但没有上行传输资源时, UE 需要先向 Pcell 发送调度请求 ( Scheduling Request)后再发送缓冲状态报告(Buffer Status Report , BSR), 若基站 为 UE选择一个 Scell, 需将 BSR中包含的逻辑信道组标识和该逻辑信道组的缓存区 中的上行缓存数据量转发给去激活的 Scell, 以便 Scell为 UE分配上行传输资源, 同 时 Pcell向 UE发送包含该 Scell标识的介质访问控制层(Medium Access Control, MAC) 控制元素(Control Element, CE), UE根据 Scell标识激活相应的 Scell,并监听该 Scell 为 UE分配的上行传输资源 (UL grant)。
发明人在对现有技术的研究过程中发现, 由于 UE在获取上行传输资源时, 需要
Pcell向 UE发送作为显示激活命令的 MAC CE后, UE才能监听为该 UE分配上行传 输资源的去激活的 Scell。但是, 现有技术中, 对于 UE可以确定逻辑信道与小区间映 射关系的应用场景来说, 如果仍然通过 MAC CE通知 UE所要监听的小区, 则会浪 费系统传输资源, 增加 UE获取到下行传输资源的时延。 发明内容 本发明实施例提供了上行资源分配方法、 UE及基站, 以解决现有技术中 UE获 取下行传输资源的时延较长, 且浪费系统传输资源的问题。 为了解决上述技术问题, 本发明实施例公开了如下技术方案: 第一方面, 提供一种上行资源分配方法, 所述方法包括:
用户设备 UE获取与上行业务的逻辑信道对应的目标小区, 所述目标小区处于去 激活状态;
UE激活所述目标小区;
UE接收所述目标小区根据所述逻辑信道所在的逻辑信道组的标识和所述逻辑信 道组的上行缓存数据量, 为所述 UE分配的上行传输资源。
结合第一方面, 在第一方面的第一种可能的实现方式中, 所述 UE激活所述目标 小区之前, 还包括:
UE向第一小区发送缓冲状态报告 BSR,以使所述第一小区将所述 BSR中包含的 所述逻辑信道组的标识和所述逻辑信道组的上行缓存数据量转发给所述目标小区。
结合第一方面的第一种可能的实现方式, 在第一方面的第二种可能的实现方式 中, 所述 UE激活所述目标小区包括:
UE 向所述第一小区发送 BSR 后, 监听所述目标小区的物理下行控制信道 PDCCH; 或者,
UE接收到所述第一小区发送的成功接收所述 BSR的反馈消息后,监听所述目标 小区的 PDCCH。
结合第一方面的第一种可能的实现方式, 或者第一方面的第二种可能的实现方 式, 在第一方面的第三种可能的实现方式中, 所述 UE向第一小区发送 BSR之前, 还包括: 所述 UE通过物理上行控制信道 PUCCH向所述第一小区发送调度请求 SR, 以请求所述第一小区为所述 UE分配传输所述 BSR的上行传输资源;
所述 UE向第一小区发送 BSR后,还包括: 所述 UE与所述第一小区之间恢复到 发送所述 SR之前的状态。
结合第一方面的第三种可能的实现方式, 在第一方面的第四种可能的实现方式 中, 所述 UE与所述第一小区之间恢复到发送所述 SR之前的状态包括:
当所述 UE发送所述 SR之前, 对所述第一小区处于非连续接收 DRX状态, 则 所述 UE向第一小区发送 BSR后, 返回所述 DRX状态;
当所述 UE发送所述 SR之前, 所述第一小区处于去激活状态, 则所述 UE向第 一小区发送 BSR后, 去激活所述第一小区。
结合第一方面, 在第一方面的第五种可能的实现方式中, 所述 UE与所述目标小 区上行失步, 所述 UE激活所述目标小区后, 还包括: UE在随机接入所述目标小区时, 向所述目标小区发送携带 BSR的消息 3, 所述 BSR中包含所述逻辑信道组的标识和所述逻辑信道组的上行缓存数据量。
结合第一方面, 或者第一方面的第一种可能的实现方式, 或者第一方面的第二种 可能的实现方式, 或者第一方面的第三种可能的实现方式, 或者第一方面的第四种可 能的实现方式, 或者第一方面的第五种可能的实现方式,在第一方面的第六种可能的 实现方式中, 所述方法还包括: UE保存业务的逻辑信道与小区的对应关系;
所述 UE获取与上行业务的逻辑信道对应的目标小区具体为: 所述 UE通过查找 所述对应关系, 获取与所述上行业务的逻辑信道对应的目标小区。
第二方面, 提供一种上行资源分配方法, 所述方法包括:
第一基站获取 UE上行业务的逻辑信道所在的逻辑信道组的标识和所述逻辑信道 组的上行缓存数据量,所述第一基站是与所述上行业务的逻辑信道对应的目标小区所 在的基站, 所述目标小区处于去激活状态;
第一基站根据所述逻辑信道组的标识和所述逻辑信道组的上行缓存数据量,为所 述 UE分配上行传输资源;
第一基站在所述 UE激活所述目标小区后, 将为所述 UE分配的上行传输资源发 送给所述 UE。
结合第二方面, 在第二方面的第一种可能的实现方式中, 所述第一基站获取 UE 上行业务的逻辑信道所在的逻辑信道组的标识和所述逻辑信道组的上行缓存数据量 包括:
第一基站接收第二基站发送的所述上行业务的逻辑信道所在的逻辑信道组的标 识和所述逻辑信道组的上行缓存数据量,所述逻辑信道组的标识和所述逻辑信道组的 上行缓存数据量为所述 UE向所述第二基站发送的 BSR中包含的信息, 所述第二基 站为所述 UE的第一小区所在的基站。
结合第二方面, 在第二方面的第二种可能的实现方式中, 所述第一基站获取 UE 上行业务的逻辑信道所在的逻辑信道组的标识和所述逻辑信道组的上行缓存数据量 包括:
当所述 UE与所述目标小区上行失步时, 所述第一基站接收所述 UE在随机接入 所述目标小区时, 向所述目标小区发送的携带 BSR的消息 3, 所述 BSR中包含所述 逻辑信道组的标识和所述逻辑信道组的上行缓存数据量。
第三方面, 提供一种 UE, 所述 UE包括:
获取单元, 用于获取与上行业务的逻辑信道对应的目标小区, 所述目标小区处于 去激活状态;
激活单元, 用于激活所述获取单元获取的所述目标小区;
接收单元,用于接收所述激活单元激活的所述目标小区根据所述逻辑信道所在的 逻辑信道组的标识和所述逻辑信道组的上行缓存数据量, 为所述 UE分配的上行传输 资源。
结合第三方面, 在第三方面的第一种可能的实现方式中, 所述 UE还包括: 第一发送单元, 用于向第一小区发送 BSR, 以使所述第一小区将所述 BSR中包 含的所述逻辑信道组的标识和所述逻辑信道组的上行缓存数据量转发给所述获取单 元获取的目标小区。
结合第三方面的第一种可能的实现方式, 在第三方面的第二种可能的实现方式 中, 所述激活单元, 具体用于所述第一发送单元向所述第一小区发送 BSR后, 监听 所述目标小区的 PDCCH,或者接收到所述第一小区发送的成功接收所述 BSR的反馈 消息后, 监听所述目标小区的 PDCCH。
结合第三方面的第一种可能的实现方式, 或者第三方面的第二种可能的实现方 式,在第三方面的第三种可能的实现方式中,所述第一发送单元,还用于通过 PUCCH 向所述第一小区发送 SR, 以请求所述第一小区为所述 UE分配传输所述 BSR的上行 传输资源;
所述 UE还包括: 恢复单元, 用于所述第一发送单元向第一小区发送 BSR后, 将所述 UE与所述第一小区之间恢复到所述第一发送单元发送所述 SR之前的状态。
结合第三方面, 在第三方面的第四种可能的实现方式中, 还包括:
第二发送单元, 用于当 UE与所述目标小区上行失步, 在随机接入所述目标小区 时, 向所述目标小区发送携带 BSR的消息 3, 所述 BSR中包含所述逻辑信道组的标 识和所述逻辑信道组的上行缓存数据量。
结合第三方面, 或第三方面的第一种可能的实现方式, 或第三方面的第二种可能 的实现方式, 或第三方面的第三种可能的实现方式, 或第三方面的第四种可能的实现 方式, 在第三方面的第五种可能的实现方式中, 所述 UE还包括:
保存单元, 用于保存业务的逻辑信道与小区的对应关系;
所述获取单元, 具体用于通过查找所述保存单元保存的所述对应关系, 获取与所 述上行业务的逻辑信道对应的目标小区。
第四方面, 提供一种 UE, 所述 UE包括: 处理器及无线收发信机,
所述处理器, 用于获取与上行业务的逻辑信道对应的目标小区, 所述目标小区处 于去激活状态, 激活所述目标小区;
所述无线收发信机,用于接收所述目标小区根据所述逻辑信道所在的逻辑信道组 的标识和所述逻辑信道组的上行缓存数据量, 为所述 UE分配的上行传输资源。
结合第四方面, 在第四方面的第一种可能的实现方式中,
所述无线收发信机, 还用于在所述处理器激活所述目标小区之前, 向第一小区发 送 BSR, 以使所述第一小区将所述 BSR中包含的所述逻辑信道组的标识和所述逻辑 信道组的上行缓存数据量转发给所述目标小区。
结合第四方面的第一种可能的实现方式, 在第四方面的第二种可能的实现方式 中,
所述处理器, 具体用于在所述无线收发信机向所述第一小区发送 BSR后, 监听 所述目标小区的物理下行控制信道 PDCCH, 或者在所述无线收发信机接收到所述第 一小区发送的成功接收所述 BSR的反馈消息后, 监听所述目标小区的 PDCCH。
结合第四方面的第一种可能的实现方式, 或者第四方面的第二种可能的实现方 式, 在第四方面的第三种可能的实现方式中,
所述无线收发信机, 还用于通过 PUCCH向所述第一小区发送 SR, 以请求所述 第一小区为所述 UE分配传输所述 BSR的上行传输资源;
所述处理器, 还用于在所述无线收发信机向第一小区发送 BSR后, 与所述第一 小区之间恢复到发送所述 SR之前的状态。
结合第四方面, 在第四方面的第四种可能的实现方式中,
所述无线收发信机, 还用于在所述 UE随机接入所述目标小区时, 向所述目标小 区发送携带 BSR的消息 3, 所述 BSR中包含所述逻辑信道组的标识和所述逻辑信道 组的上行缓存数据量。
结合第四方面, 或者第四方面的第一种可能的实现方式, 或者第四方面的第二种 可能的实现方式, 或者第四方面的第三种可能的实现方式, 或者第四方面的第四种可 能的实现方式, 在第四方面的第五种可能的实现方式中,
所述 UE还包括: 存储器, 用于保存业务的逻辑信道与小区的对应关系; 所述处理器, 具体用于通过查找所述存储器保存的所述对应关系, 获取与所述上 行业务的逻辑信道对应的目标小区。
第五方面, 提供一种基站, 所述基站作为第一基站, 包括:
获取单元, 用于获取 UE上行业务的逻辑信道所在的逻辑信道组的标识和所述逻 辑信道组的上行缓存数据量,所述第一基站是与所述上行业务的逻辑信道对应的目标 小区所在的基站, 所述目标小区处于去激活状态;
分配单元,用于根据所述获取单元获取的所述逻辑信道组的标识和所述逻辑信道 组的上行缓存数据量, 为所述 UE分配上行传输资源;
发送单元, 用于在所述 UE激活所述目标小区后, 将所述分配单元为所述 UE分 配的上行传输资源发送给所述 UE。
结合第五方面, 在第五方面的第一种可能的实现方式中, 所述获取单元包括至少 一个下述单元:
第一获取子单元,用于接收第二基站发送的所述上行业务的逻辑信道所在的逻辑 信道组的标识和所述逻辑信道组的上行缓存数据量,所述逻辑信道组的标识和所述逻 辑信道组的上行缓存数据量为所述 UE向所述第二基站发送的 BSR中包含的信息, 所述第二基站为所述 UE的第一小区所在的基站;
第二获取子单元, 用于当所述 UE与所述目标小区上行失步时, 接收所述 UE在 随机接入所述目标小区时, 向所述目标小区发送的携带 BSR的消息 3, 所述 BSR中 包含所述逻辑信道组的标识和所述逻辑信道组的上行缓存数据量。
第六方面, 提供一种基站, 所述基站作为第一基站, 包括: 处理器及收发信机, 所述处理器, 用于获取 UE上行业务的逻辑信道所在的逻辑信道组的标识和所述 逻辑信道组的上行缓存数据量,所述第一基站是与所述上行业务的逻辑信道对应的目 标小区所在的基站,所述目标小区处于去激活状态,根据所述逻辑信道组的标识和所 述逻辑信道组的上行缓存数据量, 为所述 UE分配上行传输资源;
所述收发信机, 用于在所述 UE激活所述目标小区后, 将为所述 UE分配的上行 传输资源发送给所述 UE。
结合第六方面, 在第六方面的第一种可能的实现方式中,
所述处理器,具体用于通过所述收发信机接收第二基站发送的所述上行业务的逻 辑信道所在的逻辑信道组的标识和所述逻辑信道组的上行缓存数据量,所述逻辑信道 组的标识和所述逻辑信道组的上行缓存数据量为所述 UE向所述第二基站发送的 BSR 中包含的信息, 所述第二基站为所述 UE的第一小区所在的基站; 或者, 具体用于当 所述 UE与所述目标小区上行失步时, 通过所述收发信机接收所述 UE在随机接入所 述目标小区时, 向所述目标小区发送的携带 BSR的消息 3, 所述 BSR中包含所述逻 辑信道组的标识和所述逻辑信道组的上行缓存数据量。
本发明实施例中, UE获取与上行业务的逻辑信道对应的目标小区, 目标小区处 于去激活状态, UE激活目标小区, 并接收目标小区根据该逻辑信道所在的逻辑信道 组的标识和该逻辑信道组的上行缓存数据量, 为 UE分配的上行传输资源。 由于本发 明实施例中, UE可以根据逻辑信道与目标小区的对应关系, 直接激活目标小区, 从 而无需基站通过例如 MAC CE等激活命令通知 UE所要激活的小区, 因此节省了系 统的传输资源, 减少了 UE获取到下行传输资源的时延。 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 1A为本发明上行资源分配方法的一个实施例流程图;
图 1B为本发明上行资源分配方法的另一个实施例流程图;
图 2为本发明上行资源分配方法的另一个实施例流程图;
图 3为本发明上行资源分配方法的另一个实施例流程图;
图 4为本发明 UE的一个实施例框图;
图 5为本发明 UE的另一个实施例框图;
图 6为本发明 UE的另一个实施例框图;
图 7为本发明 UE的另一个实施例框图;
图 8为本发明 UE的另一个实施例框图;
图 9为本发明基站的一个实施例框图;
图 10为本发明基站的另一个实施例框图。 具体实施方式
本发明如下实施例提供了上行资源分配方法、 UE及基站。
为了使本技术领域的人员更好地理解本发明实施例中的技术方案,并使本发明实 施例的上述目的、特征和优点能够更加明显易懂, 下面结合附图对本发明实施例中技 术方案作进一步详细的说明。
随着移动通信技术的发展, 为了应对移动数据业务流量的增长,在现有通信系统 中增加了小小区部署的场景。 例如, 在 UE较多的地点, 高密度部署覆盖面积较小的 小区, 这些小区可以称为小小区 (Small cell) , 对应这些小小区的基站称为小基站 ( Small e B), 通常在一个宏基站 (Macro eNB) 的覆盖范围内, 可能存在多个小基 站。 本发明实施例中, 小小区部署场景下的两种典型应用如下:
UE 的控制面与传输面分离场景: 将 UE 的控制面, 即无线资源控制 (Radio Resource Control, RRC)连接维持在宏基站上,将 UE的用户面传输维持在小基站上, 由此使得 UE可以利用小基站较宽的带宽进行数据传输, 并由宏基站统一进行控制管 理, 从而简化 UE在小基站间移动时的移动性管理。
多流传输场景: UE根据业务 QoS需求的不同, 可以将不同业务通过不同小区进 行传输。例如,对于时延要求较高、传输带宽较低的基于互联网协议的语音(Voice over Internet Protocol, VoIP) 业务通过宏基站传输, 将时延要求较低、 传输带宽要求较高 的文件传输协议 (File Transfer Protocol, FTP) 业务通过小基站传输。
在上述小小区部署场景下, UE能够预先获知传输每种业务的逻辑信道, 以及每 个逻辑信道与小区之间的对应关系。 因此, 可以利用上述对应关系, 缩短请求基站分 配上行传输资源的时延。下面通过具体实施例对本发明中的上行资源分配实施例进行 描述。 参见图 1A, 为本发明上行资源分配方法的一个实施例流程图, 该实施例从 UE 侧描述了上行资源分配过程:
步骤 101 : UE获取与上行业务的逻辑信道对应的目标小区, 该目标小区处于去 激活状态。
本实施例中, 可以应用在如前所述的小小区部署的场景下, 在小小区部署的应用 场景中, 每个业务的逻辑信道映射到特定的小区, 并在所映射的小区中传输。 因此, UE可以根据不同逻辑信道与小区之间的一一对应关系, 当有上行业务要传输时, 获 取该上行业务的逻辑信道对应的小区, 作为目标小区。本实施例中, 针对目标小区处 于去激活状态时的上行资源分配过程。
步骤 102: UE激活该目标小区。
在一种可选的实现方式中, 如果 UE分配有第一小区上的上行传输资源, 则 UE 可以向第一小区发送 BSR, 以使第一小区将 BSR中包含的上行业务的逻辑信道所在 的逻辑信道组的标识和该逻辑信道组的上行缓存数据量转发给目标小区,并且在向第 一小区发送 BSR后, 监听目标小区的物理下行控制信道 (Physical Downlink Control Channel, PDCCH), 或者接收到第一小区发送的成功接收 BSR的反馈消息后, 监听 目标小区的 PDCCH。
在二种可选的实现方式中, 如果 UE还与目标小区上行失步, 则 UE开始监听目 标小区的 PDCCH, 同时 UE需要随机接入目标小区以实现上行同步, 在随机接入过 程中, UE向目标小区发送携带 BSR的消息 3, 该 BSR中包含上行业务的逻辑信道 所在的逻辑信道组的标识和该逻辑信道组的上行缓存数据量。
本实施例中, UE激活目标小区后, 除了开始监听目标小区的 PDCCH外, 后续 还可以在该目标小区的上行共享信道 (UpLink Shared Channel, UL-SCH) 上根据分 配的上行传输资源传输上行数据, 向目标小区发送探测参考信号(Sounding Reference Signal, SRS), 以及向目标小区报告信道质量指示(Channel Quality Indicator, CQI)、 预编码矩阵指示器 (Precoding Matrix Index, PMI)、 秩指示 (Rank Indicator, RI)、 预编码类型指示(Precoding Type Indicator, PTI)等, 对此本发明实施例不进行限制。
步骤 103 : UE接收目标小区根据逻辑信道组的标识和该逻辑信道组的上行缓存 数据量, 为该 UE分配的上行传输资源。
本实施例中, 目标小区所在的基站根据上行业务的逻辑信道所在的逻辑信道组的 标识和该逻辑信道组的上行缓存数据量为 UE分配上行传输资源的过程与现有技术一 致, 在此不再赘述。
由上述实施例可见, UE可以根据逻辑信道与目标小区的对应关系, 直接激活目 标小区, 从而无需基站通过例如 MAC CE等激活命令通知 UE所要激活的小区, 因 此节省了系统的传输资源, 减少了 UE获取到下行传输资源的时延。 参见图 1B, 为本发明上行资源分配方法的另一个实施例流程图, 该实施例从基 站侧描述了上行资源分配过程:
步骤 111 : 第一基站获取 UE上行业务的逻辑信道所在的逻辑信道组的标识和该 逻辑信道组的上行缓存数据量,该第一基站是与上行业务的逻辑信道对应的目标小区 所在的基站, 该目标小区处于去激活状态。
在第一种可选的实现方式中, 第一基站接收第二基站发送的 UE上行业务的逻辑 信道所在的逻辑信道组的标识和该逻辑信道组的上行缓存数据量,该逻辑信道组的标 识和该逻辑信道组的上行缓存数据量为 UE向第二基站发送的 BSR中包含的信息, 该第二基站为 UE的第一小区所在的基站。
在第二种可选的实现方式中, 当 UE与目标小区上行失步时, 第一基站接收 UE 在随机接入目标小区时, 向目标小区发送的携带 BSR的消息 3, 该 BSR中包含 UE 上行业务的逻辑信道所在的逻辑信道组的标识和该逻辑信道组的上行缓存数据量。
步骤 112:第一基站根据该逻辑信道组的标识和该逻辑信道组的上行缓存数据量, 为 UE分配上行传输资源。
本实施例中, 目标小区所在的第一基站根据逻辑信道组的标识和该逻辑信道组的 上行缓存数据量为 UE分配上行传输资源的过程与现有技术一致, 在此不再赘述。
步骤 113 : 第一基站在 UE激活目标小区后, 将为 UE分配的上行传输资源发送 给 UE。
由上述实施例可见, UE可以根据逻辑信道与目标小区的对应关系, 直接激活目 标小区, 从而无需基站通过例如 MAC CE等激活命令通知 UE所要激活的小区, 因 此节省了系统的传输资源, 减少了 UE获取到下行传输资源的时延。 参见图 2, 为本发明上行资源分配方法的另一个实施例流程图, 该实施例中假设 目标小区处于去激活状态:
步骤 201 : UE保存业务的逻辑信道与小区的对应关系。
本实施例可以应用在小小区部署的场景中,每个业务的逻辑信道映射到特定的小 区, 并在所映射的小区中传输。 因此, UE可以预先保存不同业务的逻辑信道与小区 之间的对应关系, 通常一个逻辑信道对应一个小区。
步骤 202: UE有上行业务传输时, 通过查找对应关系获取该上行业务的逻辑信 道对应的目标小区为小区 2, 小区 2处于去激活状态。
步骤 203 : UE向已激活且为 UE分配过上行传输资源的小区 1所在的基站 1发 送 BSR, 该 BSR中包含上行业务的逻辑信道所在的逻辑信道组的标识和该逻辑信道 组的上行缓存数据量。
本实施例中, 如果小区 1配置有 PUCCH, 且 UE未配有可用于发送 BSR的上行 传输资源,则 UE向基站 1发送 BSR之前,还需要先通过上行物理控制信道(Physical Uplink Control Channel, PUCCH) 向小区 1发送调度请求( Scheduling Request, SR), 以便请求小区 1为 UE分配传输该 BSR的上行传输资源。
其中, 当 UE向小区 1发送 BSR后, UE与小区 1之间可以恢复到发送 SR之前 的状态。例如,当 UE发送 SR之前,对小区 1处于非连续接收(Discontinuous Reception, DRX) 状态, 则 UE向小区 1发送 BSR后, 返回 DRX状态; 当 UE发送 SR之前, 小区 1处于去激活状态, 则 UE向小区 1发送 BSR后, 去激活该小区 1。
步骤 204: 基站 1将该上行业务的逻辑信道所在的逻辑信道组的标识和该逻辑信 道组的上行缓存数据量转发给小区 2所在的基站 2。
本步骤中, 当 BSR中仅包含该上行业务的逻辑信道所在的逻辑信道组的标识和 该逻辑信道组的上行缓存数据量时,则基站 1直接将该上行业务的逻辑信道所在的逻 辑信道组的标识和该逻辑信道组的上行缓存数据量转发给基站 2即可; 当 BSR中包 含多个逻辑信道组的标识和对应的多个逻辑信道组的上行缓存数据量时, 则基站 1 可以按照现有技术,确定多个逻辑信道组中每个逻辑信道组对应的目标小区, 从而将 该上行业务的逻辑信道所在的逻辑信道组的标识和该逻辑信道组的上行缓存数据量 转发对应的目标小区所在的基站 2, 或者 UE也可以在向基站 1发送 BSR时, 在该 BSR中增加指示 IE, 用于告知基站 1该上行业务的逻辑信道所在的逻辑信道组对应 的目标小区的标识, 以使基站 1可以根据该 IE的指示将该逻辑信道组的标识和该逻 辑信道组的上行缓存数据量转发给与该目标小区对应的基站 2。
步骤 205: UE监听小区 2的 PDCCH。
本实施例中, UE可以在向小区 1发送 BSR后,立刻开始监听小区 2的 PDCCH, 也可以在接收到小区 1 发送的成功接收所述 BSR 的反馈消息后, 监听小区 2 的 PDCCH。
步骤 206: 基站 2根据上行业务的逻辑信道所在的逻辑信道组的标识和该逻辑信 道组的上行缓存数据量, 为 UE分配上行传输资源。
本实施例中,基站 2根据逻辑信道的标识和上行业务的数据量为 UE分配上行传 输资源的过程与现有技术一致, 在此不再赘述。
步骤 207: 基站 2向 UE发送用于指示上行传输资源的上行授权。
步骤 208: UE根据上行传输资源传输上行业务。
由上述实施例可见, UE可以根据逻辑信道与目标小区的对应关系, 直接激活目 标小区, 从而无需基站通过例如 MAC CE等激活命令通知 UE所要激活的小区, 因 此节省了系统的传输资源, 减少了 UE获取到下行传输资源的时延。 参见图 3, 为本发明上行资源分配方法的另一个实施例流程图, 该实施例中假设 目标小区处于去激活状态, 且 UE与目标小区上行失步:
步骤 301 : UE保存业务的逻辑信道与小区的对应关系。
本实施例可以应用在小小区部署的场景中,每个业务的逻辑信道映射到特定的小 区, 并在所映射的小区中传输。 因此, UE可以预先保存不同业务的逻辑信道与小区 之间的对应关系, 通常一个逻辑信道对应一个小区。
步骤 302: UE有上行业务传输时, 通过查找对应关系获取该上行业务的逻辑信 道对应的目标小区为小区 2, 小区 2处于去激活状态, 且 UE与小区 2上行失步。 步骤 303 : UE监听小区 2的 PDCCH。
本实施例中, UE查找待传输的上行业务的逻辑信道对应的小区 2后, 就开始监 听小区 2的 PDCCH, 以便激活小区 2。
步骤 304: UE向小区 2所在的基站 2发起随机接入以实现与小区 2之间的上行 同步, 在随机接入过程中 UE向小区 2发送携带 BSR的消息 3, 该 BSR中包含上行 业务的逻辑信道所在的逻辑信道组的标识和该逻辑信道组的上行缓存数据量。
本实施例中, 由于 UE与小区 2之间上行失步, 因此 UE需要向小区 2发起随机 接入过程, 该随机接入过程与现有技术一致, 在此不再赘述。 其中, UE在随机接入 过程中发送消息 3 (Message3 ) 时, 在消息 3中携带 BSR, 该 BSR中包含上行业务 的逻辑信道所在的逻辑信道组的标识和该逻辑信道组的上行缓存数据量。
步骤 305: 基站 2根据消息 3中包含的上行业务的逻辑信道所在的逻辑信道组的 标识和该逻辑信道组的上行缓存数据量, 为 UE分配上行传输资源。
本实施例中,基站 2根据上行业务的逻辑信道所在的逻辑信道组的标识和该逻辑 信道组的上行缓存数据量为 UE分配上行传输资源的过程与现有技术一致,在此不再 赘述。
步骤 306: 基站 2向 UE发送用于指示上行传输资源的上行授权。
步骤 307: UE根据该上行传输资源传输上行业务。
由上述实施例可见, UE可以根据逻辑信道与目标小区的对应关系, 直接激活目 标小区, 从而无需基站通过例如 MAC CE等激活命令通知 UE所要激活的小区, 因 此节省了系统的传输资源, 减少了 UE获取到下行传输资源的时延。 与本发明方法上行资源分配方法的实施例相对应,本发明还提供了 UE及基站的 实施例。
参见图 4, 为本发明 UE的一个实施例框图:
该 UE包括: 获取单元 410、 激活单元 420和接收单元 430。
其中, 获取单元 410, 用于获取与上行业务的逻辑信道对应的目标小区, 所述目 标小区处于去激活状态;
激活单元 420, 用于激活所述获取单元 410获取的所述目标小区;
接收单元 430, 用于接收所述激活单元 420激活的所述目标小区根据所述逻辑信 道所在的逻辑信道组的标识和所述逻辑信道组的上行缓存数据量, 为所述 UE分配的 上行传输资源。 参见图 5, 为本发明 UE的另一个实施例框图;
该 UE包括: 获取单元 510、 第一发送单元 520、 激活单元 530和接收单元 540。 其中, 获取单元 510, 用于获取与上行业务的逻辑信道对应的目标小区, 所述目 标小区处于去激活状态;
第一发送单元 520, 用于向第一小区发送 BSR, 以使所述第一小区将所述 BSR 中包含的所述逻辑信道组的标识和所述逻辑信道组的上行缓存数据量转发给所述获 取单元获取的目标小区。
激活单元 530, 用于激活所述获取单元 520获取的所述目标小区;
接收单元 540, 用于接收所述激活单元 530激活的所述目标小区根据所述逻辑信 道所在的逻辑信道组的标识和所述逻辑信道组的上行缓存数据量, 为所述 UE分配的 上行传输资源。
可选的, 所述激活单元 530, 可以具体用于所述第一发送单元 520向所述第一小 区发送 BSR后, 监听所述目标小区的 PDCCH, 或者接收到所述第一小区发送的成功 接收所述 BSR的反馈消息后, 监听所述目标小区的 PDCCH。
可选的, 所述第一发送单元 520, 还可以用于通过 PUCCH向所述第一小区发送 SR, 以请求所述第一小区为所述 UE分配传输所述 BSR的上行传输资源;
相应的, 所述 UE还可以包括 (图 5中未示出): 恢复单元, 用于所述第一发送 单元 520向第一小区发送 BSR后, 将所述 UE与所述第一小区之间恢复到所述第一 发送单元 520发送所述 SR之前的状态。 参见图 6, 为本发明 UE的另一个实施例框图;
该 UE包括: 获取单元 610、 激活单元 620、 第二发送单元 630和接收单元 640。 其中, 获取单元 610, 用于获取与上行业务的逻辑信道对应的目标小区, 所述目 标小区处于去激活状态;
激活单元 620, 用于激活所述获取单元 610获取的所述目标小区;
第二发送单元 630, 用于当 UE与所述目标小区上行失步, 在随机计入所述目标 小区时, 向所述获取单元 610获取的目标小区发送携带 BSR的消息 3, 所述 BSR中 包含所述逻辑信道组的标识和所述逻辑信道组的上行缓存数据量;
接收单元 640, 用于接收所述激活单元 620激活的所述目标小区根据所述逻辑信 道所在的逻辑信道组的标识和所述逻辑信道组的上行缓存数据量, 为所述 UE分配的 上行传输资源。 参见图 7, 为本发明 UE的另一个实施例框图;
该 UE包括: 保存单元 710、 获取单元 720、 激活单元 730和接收单元 740。 其中, 保存单元 710, 用于保存业务的逻辑信道与小区的对应关系;
获取单元 720, 用于通过查找所述保存单元 710保存的所述对应关系, 获取与所 述上行业务的逻辑信道对应的目标小区;
激活单元 730, 用于激活所述获取单元 720获取的所述目标小区;
接收单元 740, 用于接收所述激活单元 730激活的所述目标小区根据所述逻辑信 道所在的逻辑信道组的标识和所述逻辑信道组的上行缓存数据量, 为所述 UE分配的 上行传输资源。
参见图 8, 为本发明 UE的另一个实施例框图;
该 UE包括: 处理器 810和无线收发信机 820。
其中, 所述处理器 810, 用于获取与上行业务的逻辑信道对应的目标小区, 所述 目标小区处于去激活状态, 激活所述目标小区;
所述无线收发信机 820, 用于接收所述目标小区根据所述逻辑信道所在的逻辑信 道组的标识和所述逻辑信道组的上行缓存数据量, 为所述 UE分配的上行传输资源。
可选的, 所述无线收发信机 820, 还可以用于在所述处理器激活所述目标小区之 前, 向第一小区发送 BSR, 以使所述第一小区将所述 BSR中包含的所述逻辑信道组 的标识和所述逻辑信道组的上行缓存数据量转发给所述目标小区。
可选的, 所述处理器 810, 可以具体用于在所述无线收发信机 820向所述第一小 区发送 BSR后, 监听所述目标小区的物理下行控制信道 PDCCH, 或者在所述无线收 发信机 820接收到所述第一小区发送的成功接收所述 BSR的反馈消息后, 监听所述 目标小区的 PDCCH。
可选的, 所述无线收发信机 820, 还可以用于通过 PUCCH向所述第一小区发送
SR, 以请求所述第一小区为所述 UE分配传输所述 BSR的上行传输资源;
所述处理器 810, 还可以用于在所述无线收发信机 820向第一小区发送 BSR后, 与所述第一小区之间恢复到发送所述 SR之前的状态。
可选的, 所述无线收发信机 810, 还可以用于在所述 UE随机接入所述目标小区 时, 向所述目标小区发送携带 BSR的消息 3, 所述 BSR中包含所述逻辑信道组的标 识和所述逻辑信道组的上行缓存数据量。 可选的, 所述 UE还可以包括 (图 8中未示出): 存储器, 用于保存业务的逻辑 信道与小区的对应关系; 相应的, 所述处理器 810, 可以具体用于通过查找所述存储 器保存的所述对应关系, 获取与所述上行业务的逻辑信道对应的目标小区。 参见图 9, 为本发明基站的一个实施例框图;
该基站作为第一基站, 包括: 获取单元 910、 分配单元 920和发送单元 930。 其中, 获取单元 910, 用于获取 UE上行业务的逻辑信道所在的逻辑信道组的标 识和所述逻辑信道组的上行缓存数据量,所述第一基站是与所述上行业务的逻辑信道 对应的目标小区所在的基站, 所述目标小区处于去激活状态;
分配单元 920, 用于根据所述获取单元 910获取的所述逻辑信道组的标识和所述 逻辑信道组的上行缓存数据量, 为所述 UE分配上行传输资源;
发送单元 930, 用于在所述 UE激活所述目标小区后, 将所述分配单元 920为所 述 UE分配的上行传输资源发送给所述 UE。
可选的, 所述获取单元 910可以包括至少一个下述单元 (图 9中未示出): 第一获取子单元,用于接收第二基站发送的所述上行业务的逻辑信道所在的逻辑 信道组的标识和所述逻辑信道组的上行缓存数据量,所述逻辑信道组的标识和所述逻 辑信道组的上行缓存数据量为所述 UE向所述第二基站发送的 BSR中包含的信息, 所述第二基站为所述 UE的第一小区所在的基站;
第二获取子单元, 用于当所述 UE与所述目标小区上行失步时, 接收所述 UE在 随机接入所述目标小区时, 向所述目标小区发送的携带 BSR的消息 3, 所述 BSR中 包含所述逻辑信道组的标识和所述逻辑信道组的上行缓存数据量。 参见图 10, 为本发明基站的另一个实施例框图。
该基站作为第一基站, 包括: 处理器 1010和收发信机 1020。
其中,所述处理器 1010,用于获取 UE上行业务的逻辑信道所在的逻辑信道组的 标识和所述逻辑信道组的上行缓存数据量,所述第一基站是与所述上行业务的逻辑信 道对应的目标小区所在的基站,所述目标小区处于去激活状态,根据所述逻辑信道组 的标识和所述逻辑信道组的上行缓存数据量, 为所述 UE分配上行传输资源;
所述收发信机 1020, 用于在所述 UE激活所述目标小区后, 将为所述 UE分配的 上行传输资源发送给所述 UE。
可选的, 所述处理器 1010, 可以具体用于通过所述收发信机接收第二基站发送 的所述上行业务的逻辑信道所在的逻辑信道组的标识和所述逻辑信道组的上行缓存 数据量,所述逻辑信道组的标识和所述逻辑信道组的上行缓存数据量为所述 UE向所 述第二基站发送的 BSR中包含的信息, 所述第二基站为所述 UE的第一小区所在的 基站; 或者, 具体用于当所述 UE与所述目标小区上行失步时, 通过所述收发信机接 收所述 UE在随机接入所述目标小区时, 向所述目标小区发送的携带 BSR的消息 3, 所述 BSR中包含所述逻辑信道组的标识和所述逻辑信道组的上行缓存数据量。 由上述实施例可见, UE获取与上行业务的逻辑信道对应的目标小区, 目标小区 处于去激活状态, UE激活目标小区, 并接收目标小区根据该上行业务的逻辑信道所 在的逻辑信道组的标识和该逻辑信道组的上行缓存数据量, 为 UE分配的上行传输资 源。 由于本发明实施例中, UE可以根据逻辑信道与目标小区的对应关系, 直接激活 目标小区, 从而无需基站通过例如 MAC CE等激活命令通知 UE所要激活的小区, 因此节省了系统的传输资源, 减少了 UE获取到下行传输资源的时延。
本领域的技术人员可以清楚地了解到本发明实施例中的技术可借助软件加必需 的通用硬件平台的方式来实现。基于这样的理解,本发明实施例中的技术方案本质上 或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来,该计算机软件产 品可以存储在存储介质中, 如 ROM/RAM、磁碟、光盘等, 包括若干指令用以使得一 台计算机设备(可以是个人计算机, 服务器, 或者网络设备等)执行本发明各个实施 例或者实施例的某些部分所述的方法。
本说明书中的各个实施例均采用递进的方式描述,各个实施例之间相同相似的部 分互相参见即可, 每个实施例重点说明的都是与其他实施例的不同之处。尤其, 对于 系统实施例而言, 由于其基本相似于方法实施例, 所以描述的比较简单, 相关之处参 见方法实施例的部分说明即可。
以上所述的本发明实施方式, 并不构成对本发明保护范围的限定。任何在本发明 的精神和原则之内所作的修改、等同替换和改进等,均应包含在本发明的保护范围之 内。

Claims

权 利 要 求
1、 一种上行资源分配方法, 其特征在于, 所述方法包括:
用户设备 UE获取与上行业务的逻辑信道对应的目标小区, 所述目标小区处 于去激活状态;
UE激活所述目标小区;
UE接收所述目标小区根据所述逻辑信道所在的逻辑信道组的标识和所述逻 辑信道组的上行缓存数据量, 为所述 UE分配的上行传输资源。
2、 根据权利要求 1所述的方法, 其特征在于, 所述 UE激活所述目标小区 之前, 还包括:
UE向第一小区发送缓冲状态报告 BSR,以使所述第一小区将所述 BSR中包 含的所述逻辑信道所在的逻辑信道组的标识和所述逻辑信道组的上行缓存数据 量转发给所述目标小区。
3、 根据权利要求 2所述的方法, 其特征在于, 所述 UE激活所述目标小区 包括:
UE 向所述第一小区发送 BSR后, 监听所述目标小区的物理下行控制信道 PDCCH; 或者,
UE接收到所述第一小区发送的成功接收所述 BSR的反馈消息后,监听所述 目标小区的 PDCCH。
4、 根据权利要求 2或 3所述的方法, 其特征在于, 所述 UE向第一小区发 送 BSR之前,还包括:所述 UE通过物理上行控制信道 PUCCH向所述第一小区 发送调度请求 SR, 以请求所述第一小区为所述 UE分配传输所述 BSR的上行传 输资源;
所述 UE向第一小区发送 BSR后,还包括: 所述 UE与所述第一小区之间恢 复到发送所述 SR之前的状态。
5、 根据权利要求 4所述的方法, 其特征在于, 所述 UE与所述第一小区之 间恢复到发送所述 SR之前的状态包括:
当所述 UE发送所述 SR之前, 对所述第一小区处于非连续接收 DRX状态, 则所述 UE向第一小区发送 BSR后, 返回所述 DRX状态;
当所述 UE发送所述 SR之前, 所述第一小区处于去激活状态, 则所述 UE 向第一小区发送 BSR后, 去激活所述第一小区。
6、 根据权利要求 1所述的方法, 其特征在于, 所述 UE与所述目标小区上 行失步, 所述 UE激活所述目标小区后, 还包括:
UE在随机接入所述目标小区时, 向所述目标小区发送携带 BSR的消息 3, 所述 BSR中包含所述逻辑信道组的标识和所述逻辑信道组的上行缓存数据量。
7、 根据权利要求 1至 6任意一项所述的方法, 其特征在于, 所述方法还包 括: UE保存业务的逻辑信道与小区的对应关系;
所述 UE获取与上行业务的逻辑信道对应的目标小区具体为: 所述 UE通过 查找所述对应关系, 获取与所述上行业务的逻辑信道对应的目标小区。
8、 一种上行资源分配方法, 其特征在于, 所述方法包括:
第一基站获取 UE上行业务的逻辑信道所在的逻辑信道组的标识和所述逻辑 信道组的上行缓存数据量,所述第一基站是与所述上行业务的逻辑信道对应的目 标小区所在的基站, 所述目标小区处于去激活状态;
第一基站根据所述逻辑信道组的标识和所述逻辑信道组的上行缓存数据量, 为所述 UE分配上行传输资源;
第一基站在所述 UE激活所述目标小区后, 将为所述 UE分配的上行传输资 源发送给所述 UE。
9、 根据权利要求 8所述的方法, 其特征在于, 所述第一基站获取 UE上行 业务的逻辑信道所在的逻辑信道组的标识和所述逻辑信道组的上行缓存数据量 包括:
第一基站接收第二基站发送的所述上行业务的逻辑信道所在的逻辑信道组 的标识和所述逻辑信道组的上行缓存数据量,所述逻辑信道组的标识和所述逻辑 信道组的上行缓存数据量为所述 UE向所述第二基站发送的 BSR中包含的信息, 所述第二基站为所述 UE的第一小区所在的基站。
10、 根据权利要求 8所述的方法, 其特征在于, 所述第一基站获取 UE上行 业务的逻辑信道所在的逻辑信道组的标识和所述逻辑信道组的上行缓存数据量 包括:
当所述 UE与所述目标小区上行失步时, 所述第一基站接收所述 UE在随机 接入所述目标小区时, 向所述目标小区发送的携带 BSR的消息 3, 所述 BSR中 包含所述逻辑信道组的标识和所述逻辑信道组的上行缓存数据量。
11、 一种 UE, 其特征在于, 所述 UE包括:
获取单元, 用于获取与上行业务的逻辑信道对应的目标小区, 所述目标小区 处于去激活状态;
激活单元, 用于激活所述获取单元获取的所述目标小区;
接收单元,用于接收所述激活单元激活的所述目标小区根据所述逻辑信道所 在的逻辑信道组的标识和所述逻辑信道组的上行缓存数据量, 为所述 UE分配的 上行传输资源。
12、 根据权利要求 11所述的 UE, 其特征在于, 所述 UE还包括: 第一发送单元, 用于向第一小区发送 BSR, 以使所述第一小区将所述 BSR 中包含的所述逻辑信道组的标识和所述逻辑信道组的上行缓存数据量转发给所 述获取单元获取的目标小区。
13、 根据权利要求 12所述的 UE, 其特征在于,
所述激活单元, 具体用于所述第一发送单元向所述第一小区发送 BSR后, 监听所述目标小区的 PDCCH, 或者接收到所述第一小区发送的成功接收所述 BSR的反馈消息后, 监听所述目标小区的 PDCCH。
14、 根据权利要求 12或 13所述的 UE, 其特征在于,
所述第一发送单元, 还用于通过 PUCCH向所述第一小区发送 SR, 以请求 所述第一小区为所述 UE分配传输所述 BSR的上行传输资源;
所述 UE还包括: 恢复单元, 用于所述第一发送单元向第一小区发送 BSR 后, 将所述 UE与所述第一小区之间恢复到所述第一发送单元发送所述 SR之前 的状态。
15、 根据权利要求 11所述的 UE, 其特征在于, 还包括: 第二发送单元, 用于当 UE与所述目标小区上行失步, 在随机接入所述目标 小区时, 向所述目标小区发送携带 BSR的消息 3, 所述 BSR中包含所述逻辑信 道组的标识和所述逻辑信道组的上行缓存数据量。
16、 根据权利要求 11至 15任意一项所述的 UE, 其特征在于, 所述 UE还 包括:
保存单元, 用于保存业务的逻辑信道与小区的对应关系;
所述获取单元, 具体用于通过查找所述保存单元保存的所述对应关系, 获取 与所述上行业务的逻辑信道对应的目标小区。
17、 一种 UE, 其特征在于, 所述 UE包括: 处理器及无线收发信机, 所述处理器, 用于获取与上行业务的逻辑信道对应的目标小区, 所述目标小 区处于去激活状态, 激活所述目标小区;
所述无线收发信机,用于接收所述目标小区根据所述逻辑信道所在的逻辑信 道组的标识和所述逻辑信道组的上行缓存数据量, 为所述 UE分配的上行传输资 源。
18、 根据权利要求 17所述的 UE, 其特征在于,
所述无线收发信机, 还用于在所述处理器激活所述目标小区之前, 向第一小 区发送 BSR, 以使所述第一小区将所述 BSR中包含的所述逻辑信道组的标识和 所述逻辑信道组的上行缓存数据量转发给所述目标小区。
19、 根据权利要求 18所述的 UE, 其特征在于,
所述处理器, 具体用于在所述无线收发信机向所述第一小区发送 BSR后, 监听所述目标小区的物理下行控制信道 PDCCH, 或者在所述无线收发信机接收 到所述第一小区发送的成功接收所述 BSR的反馈消息后, 监听所述目标小区的 PDCCH。
20、 根据权利要求 18或 19所述的 UE, 其特征在于,
所述无线收发信机, 还用于通过 PUCCH向所述第一小区发送 SR, 以请求 所述第一小区为所述 UE分配传输所述 BSR的上行传输资源;
所述处理器, 还用于在所述无线收发信机向第一小区发送 BSR后, 与所述 第一小区之间恢复到发送所述 SR之前的状态。
21、 根据权利要去 17所述的 UE, 其特征在于,
所述无线收发信机, 还用于在所述 UE随机接入所述目标小区时, 向所述目 标小区发送携带 BSR的消息 3, 所述 BSR中包含所述逻辑信道组的标识和所述 逻辑信道组的上行缓存数据量。
22、 根据权利要求 17至 21任意一项所述的 UE, 其特征在于, 所述 UE还 包括: 存储器, 用于保存业务的逻辑信道与小区的对应关系;
所述处理器, 具体用于通过查找所述存储器保存的所述对应关系, 获取与所 述上行业务的逻辑信道对应的目标小区。
23、 一种基站, 其特征在于, 所述基站作为第一基站, 包括:
获取单元, 用于获取 UE上行业务的逻辑信道所在的逻辑信道组的标识和所 述逻辑信道组的上行缓存数据量,所述第一基站是与所述上行业务的逻辑信道对 应的目标小区所在的基站, 所述目标小区处于去激活状态;
分配单元,用于根据所述获取单元获取的所述逻辑信道组的标识和所述逻辑 信道组的上行缓存数据量, 为所述 UE分配上行传输资源;
发送单元, 用于在所述 UE激活所述目标小区后, 将所述分配单元为所述 UE分配的上行传输资源发送给所述 UE。
24、 根据权利要求 23所述的基站, 其特征在于, 所述获取单元包括至少一 个下述单元:
第一获取子单元,用于接收第二基站发送的所述上行业务的逻辑信道所在的 逻辑信道组的标识和所述逻辑信道组的上行缓存数据量,所述逻辑信道组的标识 和所述逻辑信道组的上行缓存数据量为所述 UE向所述第二基站发送的 BSR中 包含的信息, 所述第二基站为所述 UE的第一小区所在的基站;
第二获取子单元, 用于当所述 UE 与所述目标小区上行失步时, 接收所述 UE在随机接入所述目标小区时, 向所述目标小区发送的携带 BSR的消息 3, 所 述 BSR中包含所述逻辑信道组的标识和所述逻辑信道组的上行缓存数据量。
25、 一种基站, 其特征在于, 所述基站作为第一基站, 包括: 处理器及收发 信机,
所述处理器, 用于获取 UE上行业务的逻辑信道所在的逻辑信道组的标识和 所述逻辑信道组的上行缓存数据量,所述第一基站是与所述上行业务的逻辑信道 对应的目标小区所在的基站, 所述目标小区处于去激活状态, 根据所述逻辑信道 组的标识和所述逻辑信道组的上行缓存数据量, 为所述 UE分配上行传输资源; 所述收发信机, 用于在所述 UE激活所述目标小区后, 将为所述 UE分配的 上行传输资源发送给所述 UE。
26、 根据权利要求 25所述的基站, 其特征在于,
所述处理器,具体用于通过所述收发信机接收第二基站发送的所述上行业务 的逻辑信道所在的逻辑信道组的标识和所述逻辑信道组的上行缓存数据量,所述 逻辑信道组的标识和所述逻辑信道组的上行缓存数据量为所述 UE向所述第二基 站发送的 BSR中包含的信息, 所述第二基站为所述 UE的第一小区所在的基站; 或者, 具体用于当所述 UE与所述目标小区上行失步时, 通过所述收发信机接收 所述 UE在随机接入所述目标小区时,向所述目标小区发送的携带 BSR的消息 3, 所述 BSR中包含所述逻辑信道组的标识和所述逻辑信道组的上行缓存数据量。
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