WO2011140715A1 - 一种多载波系统中的调度处理方法和用户设备 - Google Patents

一种多载波系统中的调度处理方法和用户设备 Download PDF

Info

Publication number
WO2011140715A1
WO2011140715A1 PCT/CN2010/072769 CN2010072769W WO2011140715A1 WO 2011140715 A1 WO2011140715 A1 WO 2011140715A1 CN 2010072769 W CN2010072769 W CN 2010072769W WO 2011140715 A1 WO2011140715 A1 WO 2011140715A1
Authority
WO
WIPO (PCT)
Prior art keywords
data
carrier
scheduling
adjusted
base station
Prior art date
Application number
PCT/CN2010/072769
Other languages
English (en)
French (fr)
Inventor
施小娟
张健
Original Assignee
中兴通讯股份有限公司
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 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to PCT/CN2010/072769 priority Critical patent/WO2011140715A1/zh
Publication of WO2011140715A1 publication Critical patent/WO2011140715A1/zh

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling

Definitions

  • the present invention relates to the field of communications, and in particular to a scheduling processing method and user equipment (UE) in a multi-carrier system.
  • UE user equipment
  • LTE-A Long Term Evolution Advance
  • CA Carrier Aggregation
  • UE User Equipment
  • CA Carrier Aggregation
  • the maximum transmission bandwidth supported by the system is 20 MHz.
  • Carrier aggregation is to aggregate two or more component carriers (CC, which can be simply referred to as carriers) to support more than 20 MHz.
  • CC component carriers
  • the LTE-A system using carrier aggregation technology is a multi-carrier system with a transmission bandwidth of up to 100 MHz.
  • the individual component carriers performing carrier aggregation may be continuous or discontinuous in the frequency domain, as shown in FIG.
  • the UE For discontinuous component carriers, the UE needs to have multiple radio transceivers to transmit and receive data on multiple discontinuous component carriers simultaneously; for component carriers that are continuous in the frequency domain, relative to the largest in a single carrier system For a radio transceiver with a bandwidth of 20 MHz, the UE needs to have a radio transceiver with a maximum bandwidth of more than 20 MHz to transmit and receive data on multiple consecutive component carriers at the same time, or if the UE has multiple radio transceivers, the UE can use the multiple radios.
  • the transceiver device simultaneously transmits and receives data on the plurality of consecutive component carriers.
  • the UE In a multi-carrier system, the UE operates on multiple carriers, and needs to use a radio transceiver device with a bandwidth exceeding 20 MHz or use multiple radio transceiver devices, which will greatly increase the battery power consumption of the UE. Therefore, considering the bursty characteristics of the service, although the UE works at the highest rate, it is possible to use up to 5 carriers at most, but in the burst gap, the actual traffic of the UE is rarely or close to zero, and if the UE continues to Waiting to receive data on multiple carriers will result in higher power overhead.
  • the radio transceiver device that is not required to be turned on is turned off,
  • the necessary battery consumption, the concept of carrier activation deactivation is introduced in the LTE-A system.
  • the UE performs data reception only on the activated downlink carrier, such as physical downlink control channel (PDCCH); and for temporarily unused carriers, the base station deactivates these carriers by displaying command notification or implicit rules.
  • the UE does not monitor the PDCCH channel, nor does it receive data on the Physical Downlink Shared Channel (PDSCH), thereby achieving power saving.
  • the base station configures up to five downlink/uplink component carriers for the UE by using Radio Resource Control (RRC) signaling.
  • RRC Radio Resource Control
  • the base station configures a downlink primary carrier for the UE through explicit configuration or according to the protocol.
  • Downlink Primary Component Carrier DL PCC
  • U PCC Uplink Primary Component Carrier
  • PCC Downlink Primary Component Carrier
  • Other working carriers other than PCC are called Secondary Component Carrier (SCO).
  • SCO Secondary Component Carrier
  • PCC configuration is activated, that is, the data transmission can be performed on the PCC after configuration, the PCC will never be deactivated.
  • the DL SCC configuration is not activated, the base station must The base station and the UE can perform the DL SCC on the DL SCC after the UE is activated by the RRC explicit signaling or the implicit rule, or the medium access control (MAC) layer signaling is used to notify the UE to activate. Data transmission; Correspondingly, the base station can notify the UE to activate the DL SCC by using RRC signaling or implicit rules or MAC layer signaling. After configuration, the base station may use a similar activation DL SCC is deactivated activate deactivated UL SCC, i.e. configured UL SCC or activate, depending on the network decision.
  • MAC medium access control
  • the technical problem to be solved by the present invention is to provide a scheduling processing method and user equipment in a multi-carrier system, which avoids the reliability and stability of data transmission in a scheduling gap.
  • the present invention provides a scheduling processing method in a multi-carrier system, including: in a scheduling gap, a user equipment (UE) stops receiving and transmitting data on all carriers; or Within the scheduling gap, the UE stops receiving and transmitting data on the carrier being adjusted, and receives and/or transmits data on one or more carriers other than the carrier being adjusted.
  • UE user equipment
  • the scheduling gap refers to: a process in which the related radio transceiver device starts to adjust until the adjustment ends after the UE receives the command to configure the secondary carrier (SCC), delete the SCC, activate the SCC, or deactivate the SCC.
  • the duration of the scheduling gap is pre-agreed by the base station and the UE or configured by the base station.
  • the UE stops receiving and transmitting data on all carriers according to an agreement with the base station or an indication of its own capabilities or a base station.
  • the UE receives and/or transmits data according to its own capabilities or an indication by the base station.
  • the method further includes: the information that the base station sends, configures, deletes, activates, or deactivates the SCC to the UE to carry the information of the activated carrier that does not need to be adjusted; and receives and/or sends the information according to the indication of the base station by the UE.
  • the UE receives and/or transmits data on the activated carrier that does not need to be adjusted according to the received information of the activated carrier that does not need to be adjusted; or, the configuration that the base station sends to the UE And deleting, activating, or deactivating the SCC command carries the information of the activated carrier that needs to be adjusted; in the step of receiving, and/or transmitting data by the UE according to the indication of the base station, the UE performs according to the received requirement
  • the adjusted active carrier information is received and/or transmitted on the active carrier that does not require adjustment.
  • the information of the activated carrier that does not need to be adjusted includes a carrier index and/or a carrier absolute carrier frequency number; and the information of the activated carrier that needs to be adjusted includes a carrier index and/or a carrier absolute carrier frequency number.
  • the stopping receiving data includes: stopping listening to a physical downlink control channel (PDCCH), and receiving data on a pre-configured downlink shared channel (DL-SCH);
  • the stopping transmission of data includes: not transmitting data on an uplink shared channel (UL-SCH), and stopping transmission of channel quality indication (CQI), precoding matrix indication (PMI), rank indication (RI), hybrid adaptive retransmission (HARQ) feedback, uplink scheduling request (SR) and sounding reference signal (SRS).
  • CQI channel quality indication
  • PMI precoding matrix indication
  • RI rank indication
  • HARQ hybrid adaptive retransmission
  • SRS sounding reference signal
  • the stopping the sending of the data further comprises: not transmitting a buffer status report (BSR) and a power headroom report (PHR) within the scheduling gap.
  • BSR buffer status report
  • PHR power headroom report
  • the UE stops receiving on all carriers in the scheduling gap.
  • the UE processes the uplink grant but does not send data to be sent on the UL-SCH.
  • the method further includes: performing subsequent adaptation on the data to be sent after scheduling the gap Retransmitting; if the UE receives the uplink grant before the scheduling gap, and the data to be sent on the UL-SCH according to the uplink grant is just within the scheduling gap, the UE stops the carrier being adjusted in the scheduling gap.
  • the UE processes the uplink grant, but does not send data to be sent on the UL-SCH of the carrier being adjusted; in addition to the carrier being adjusted or
  • the UE sends the to-be-neutral on the UL-SCH on one or more carriers other than the carrier being adjusted Data sent.
  • the present invention provides a user equipment (UE), including a control module and a processing module; the control module is configured to: within a scheduling gap, the control processing module stops receiving and transmitting data on all carriers; or Controlling the module to stop receiving and transmitting data on the carrier being adjusted, and receiving and/or transmitting data on one or more carriers other than the carrier being adjusted; the processing module is configured to: Control of the control module stops receiving and transmitting data, or receives and/or transmits data in accordance with control of the control module.
  • the control module is further configured to: control the processing module to stop receiving and transmitting data on all carriers according to an agreement with the base station in advance or an indication of the UE's own capabilities or the base station.
  • the control module is further configured to: control, according to the UE's own capability or an indication of the base station, the processing module to receive and/or transmit data on one or more carriers other than the carrier being adjusted.
  • the stopping receiving data comprises: stopping monitoring a physical downlink control channel (PDCCH), and receiving data on a pre-configured downlink shared channel (DL-SCH); the stopping sending data includes: not in an uplink shared channel (UL) -SCH) transmits data, and stops transmitting channel quality indication (CQI), precoding matrix indication (PMI), rank indication (RI), hybrid adaptive retransmission (HARQ) feedback, uplink scheduling request (SR), and sounding reference Signal (SRS).
  • the stopping the sending of the data further comprises: not transmitting a buffer status report (BSR) and a power headroom report (PHR) within the scheduling gap.
  • BSR buffer status report
  • PHR power headroom report
  • the invention prevents data loss in the scheduling gap and avoids the reliability and stability of data transmission in the scheduling gap. In addition, it is also ensured that the data transmission of the UE in the scheduling gap is not interrupted.
  • FIG. 2 is a schematic diagram of adjustment time of a UE-side related radio transceiver device when configuring/deleting/deactivating/deactivating an SCC according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of an embodiment of the present invention. The radio transceiver of the UE.
  • the UE If the UE is configuring/activating the SCC on a separate radio transceiver, ie there is no other active CC (including PCC and SCC) on the radio transceiver before configuring/activating the SCC, the UE needs to turn on the radio transceiver , to obtain the frequency offset on each activated SCC, etc., the process also needs to be maintained for a period of time. Configuration (simultaneous activation during configuration) SCC, deletion of SCC, activation of SCC, or deactivation of SCC, the relevant radio transceiver equipment on the UE needs to be adjusted.
  • the relevant radio transceiver equipment will not be able to The UE sends and receives data, if other relevant modules other than the radio transceiver device in the UE, such as the MAC layer processing module responsible for data transmission scheduling, are improperly operated, the UE will perform the above-mentioned radio transceiver adjustment process caused by configuration/deletion/activation/deactivation. The reliability and stability of data transmission are reduced.
  • the present invention proposes that, within a scheduling gap, the UE stops receiving and transmitting data on all carriers, or, preferably, the UE stops receiving and transmitting data on the carrier being adjusted, except for the carrier being adjusted. Data is received and/or transmitted on one or more carriers other than the one. Wherein, the carrier being adjusted is that the carrier related radio transceiver is in the process of adjustment.
  • the UE may stop receiving and transmitting data on all carriers according to the agreement with the base station or the capability of the base station or the indication of the base station, or may be one or more of the UE in addition to the carrier being adjusted according to the capability of the UE or the indication of the base station. Receive and/or transmit data on multiple carriers. That is, the UE may pre-arrange with the base station to stop the uplink and downlink data transmission and reception in the scheduling gap; or, the UE stops the uplink and downlink data transmission and reception in the scheduling gap according to its own capability or the indication of the base station, or continues in the scheduling gap. Data is transmitted and received on the carrier that does not need to be adjusted, and data transmission and reception on the carrier that needs to be adjusted is stopped.
  • the carrier that does not need to be adjusted refers to that the carrier-related radio transceiver device is not in the adjustment process.
  • the scheduling gap refers to: a process in which the related radio transceiver device starts to adjust until the adjustment ends after the UE receives the command to configure, delete, activate, or deactivate the SCC.
  • the duration of the scheduling gap is pre-agreed by the base station and the UE or configured by the base station to the UE.
  • Stop receiving data includes: stopping monitoring the PDCCH, and not receiving data on the pre-configured downlink shared channel (DL-SCH); stopping the transmitting data includes: not transmitting data on the uplink shared channel (UL-SCH), and stopping transmitting the channel Quality indication (CQI), precoding matrix indication (PMI), rank indication (RI), hybrid adaptive retransmission (HARQ) feedback, uplink scheduling request (SR), and sounding reference signal (SRS), and may also include: The Transmit Buffer Status 4 Report (BSR) and Power Headroom Report (PHR) are not triggered within the scheduling gap.
  • CQI channel Quality indication
  • PMI precoding matrix indication
  • RI rank indication
  • HARQ hybrid adaptive retransmission
  • SRS sounding reference signal
  • BSR Buffer Status 4 Report
  • PHR Power Headroom Report
  • the UE stops receiving and transmitting data on all carriers in the scheduling gap If the UE receives the uplink grant before the scheduling gap, the data to be sent on the UL-SCH according to the uplink grant is just in the scheduling gap. The UE may process the uplink grant in the scheduling gap, but not send the data to be sent on the UL-SCH; after the scheduling gap, perform subsequent adaptive retransmission on the data to be sent; The UE stops receiving and transmitting data on the carrier being adjusted within the scheduling gap, and receives and/or transmits data on one or more carriers other than the carrier being adjusted: if the UE is before the scheduling gap Receiving an uplink grant, and the data to be sent on the UL-SCH according to the uplink grant is in the scheduling gap, and the UE may process the uplink grant in the scheduling gap, but not in the UL of the carrier being adjusted. The data to be transmitted is sent on the SCH, and the data to be transmitted is transmitted on the UL-SCH on one or more carriers other than the carrier being adjusted.
  • FIG. 2 is a schematic diagram of adjustment time of a UE-side related radio transceiver device when configuring/deleting/deactivating/deactivating an SCC according to the related art.
  • the UE receives the command to configure/delete/activate/deactivate the SCC at time T1.
  • the UE-related radio transceiver device starts to adjust until the T3 time adjustment ends, and the UE's radio transceiver device adjusts the process from T2 to T3. , called the scheduling gap, or the scheduling restriction time, or the interruption time.
  • the UE's radio transceivers are in a steady state. It should be noted that, according to different policies for turning on the radio transceiver, the above T1 and T2 may also coincide, that is, the UE receives the configuration/delete/activate/deactivate SCC command to turn on the adjustment of the radio transceiver.
  • the SCC and PCC that need to be configured/deleted/activated/deactivated operate on different radio transceivers, that is, the SCC operates on the radio transceiver 1, and the PCC operates on the radio transceiver 2. Since the feedback of the configuration/deletion/activation/deactivation SCC command is sent on the PCC, the UE can directly start to adjust the radio transceiver device 1 after receiving the configuration/deletion/activation/deactivation SCC command at time T1.
  • the scheduling gap the following processing modes are available: Mode 1: In the scheduling gap, the UE stops receiving and transmitting data on all carriers according to the agreement with the base station in advance: different UE capabilities are different, so the scheduling gap is on different UEs. The implementation may be different in duration. In order to shield different UE capabilities, the protocol specification may conservatively specify a maximum scheduling gap, or the base station may configure a unified scheduling gap in the configuration information sent to the UE.
  • the UE After the UE receives the command to configure/delete/activate/deactivate the SCC, or the UE receives the command to configure/delete/activate/deactivate the SCC, and sends feedback to the command, enable scheduling ga to achieve the above configuration time. Or stop scheduling ga after the specified time.
  • the UE receives the command to configure/delete/activate/deactivate the SCC or the UE receives the command to configure/delete/activate/deactivate the SCC, and sends feedback to the command, start a T-scheduling
  • the timer is the length of the scheduling gap specified by the protocol specification or the scheduling gap length configured by the base station to the UE.
  • the UE stops receiving and transmitting on all carriers according to its own capability or the indication of the base station.
  • the base station may notify the UE whether configuration/deletion/activation/deactivation is received by the capability information of the UE.
  • the SCC command or the UE receives the command to configure/delete/activate/deactivate the SCC, and sends feedback to the command, enable the scheduling ga or start the T-scheduling timer (for convenience of description, in the following embodiment) Unified is called enabling the scheduling gap).
  • the base station may also notify the UE of the duration of the scheduling ga in the above-mentioned command of configuring/deleting/deactivating/deactivating the SCC according to the UE capability. If the scheduling gap does not need to be enabled, the base station may also notify the UE of the activation carrier information that does not need to enable the scheduling gap in the above configuration/deletion/activation/deactivation of the SCC, such as carrier index (CC index) information or carrier color mapping.
  • CC index carrier index
  • carrier color mapping carrier color mapping
  • the base station may notify the UE of the information of the activation carrier that needs to enable the scheduling gap in the above-mentioned command to configure/delete/activate/deactivate the SCC.
  • the UE receives the command to configure/delete/activate/deactivate the SCC, decide whether to enable the scheduling gap or not to enable the scheduling gap, notify the base station of the decision, and then configure/delete/activate/go by the base station.
  • the command to activate the SCC notifies whether the decision of the UE is accepted.
  • At least one radio transceiver device of the UE needs to be adjusted, that is, the scheduling gap of the UE radio module is always required, and the scheduling scheme is enabled if there is no special description. Or the scheduling ga is not enabled for other processing modules of the UE, such as the MAC layer processing module of the UE, and the RRC layer processing module.
  • the carrier that needs to enable the scheduling gap means that the carrier-related radio transceiver device is in the process of adjustment; the carrier that does not need to enable the scheduling gap means that the carrier-related radio transceiver device is not in the adjustment process.
  • the base station may carry an information bit (referred to as a scheduling gap information bit in the present invention) in the command to configure/delete/activate/deactivate the SCC, and the information bit is set to 1 (or TRUE), indicating that the UE receives the configuration/ After the command to delete/activate/deactivate the SCC, or the UE receives the command to configure/delete/activate/deactivate the SCC, and send feedback to the command, enable the scheduling gap, otherwise the information bit is set to 0 (or FALSE) ), indicating that the UE has received configuration/delete/activate/ After the SCC command is deactivated, or the UE receives the command to configure/delete/activate/deactivate the SCC and sends feedback to the command, the scheduling gap is not enabled.
  • a scheduling gap information bit in the command to configure/delete/activate/deactivate the SCC
  • the specific basis for setting the foregoing information bits by the base station may be: when the base station determines, by using the capability information of the UE, that the UE receives the command to configure/delete/activate/deactivate the SCC, the UE does not need other than the radio transceiver device that needs to be adjusted.
  • the radio transceiver device that performs the adjustment and is in the on state ie, the activated carrier has activated carriers
  • the base station sets the scheduling gap information bit to 1; otherwise, if the UE has other radio transceivers that need to be adjusted, there are other
  • the radio transceiver device that needs to be adjusted and is in the on state the base station sets the scheduling gap information bit to zero. As shown in FIG.
  • the UE has two radio transceivers.
  • the UE works on carrier 1 (CC1), and the radio transceiver device 1 is responsible for data transmission and reception on CC1, and the radio transceiver device 2 is in an unopened state.
  • the base station needs to activate carrier 2 (CC2) for the UE.
  • the base station determines, according to the UE capability information or the decision of the UE to report according to its own capability, that the UE can enable the radio transceiver device 2 to be responsible for data transmission and reception on the CC2, that is, after the UE receives the activation command. It is only necessary to turn on the radio transceiver device 2, and the radio transceiver device 1 does not need to make adjustments, and the base station sets the scheduling gap information bit to zero.
  • the UE of the embodiment of the present invention includes a control module and a processing module; the control module is configured to: within the scheduling gap, the control processing module stops receiving and transmitting data on all carriers; or, the control processing module stops at Receiving and transmitting data on the adjusted carrier, receiving and/or transmitting data on one or more carriers other than the carrier being adjusted; the processing module is a radio transceiver device, a MAC layer processing module, and an RRC layer processing A general term for a module or the like, which is set to: stop receiving and transmitting data according to control of the control module, or receive and/or transmit data according to control of the control module.
  • the control module may be further configured to: control the processing module to stop receiving and transmitting data on all carriers according to an agreement with the base station in advance or an indication of the UE's own capability or the base station, and may also be configured to: Controlling the processing mode by the UE's own capabilities or an indication of the base station
  • the block receives and/or transmits data on one or more carriers other than the carrier being adjusted.
  • the following is an application example of downlink data reception and uplink data transmission, respectively, and details a scheduling processing method under the multi-carrier system in the adjustment process of the radio transceiver device.
  • Application Example 1 Downlink data reception In the LTE system, the downlink data (that is, the data sent by the base station to the UE) is received. For the dynamic scheduling (Dynamic Scheduling) data, the base station allocates the downlink on the PDSCH for the UE on the PDCCH.
  • Dynamic Scheduling Dynamic Scheduling
  • the channel receives downlink data on the Downlink Shared Channel, DL-SCH, and downlink shared channel resources.
  • the base station allocates a PDSCH resource (configured downlink assignment) for receiving the downlink SPS data to the UE in advance, and the UE may use the base station according to the base station.
  • the configuration periodically receives data on these configured PDSCH resources.
  • Manner 1 According to the processing mode of the scheduling gap, since at least one radio transceiver device of the UE is in an adjustment state, in order to avoid unnecessary data loss, the base station and the UE may uniformly agree (through protocol specification) that the UE stops in the scheduling gap. Monitor the scheduling on the downlink PDCCH. In particular, if there is exactly a pre-configured downlink assignment within the scheduling gap, the UE does not receive data on the DL-SCH.
  • Manner 2 Preferably, for the processing mode 2 of the scheduling gap, the UE determines, according to the scheduling gap information bit carried in the received configuration/delete/activate/deactivate SCC command, whether the scheduling gap is enabled, and the scheduling is enabled. Gap, the behavior of the UE in the scheduling gap is the same as that in the above manner. If the scheduling gap is not enabled, the UE can continue to listen to the downlink PDCCH on the activated carrier that does not need to enable the scheduling gap according to its own capabilities.
  • the above-mentioned activation carrier that does not need to enable the scheduling gap is responsible for the number of radio transceivers that do not need to be adjusted. According to receiving and receiving.
  • the UE continues to listen on the carrier that is notified by the base station that does not need to enable the scheduling gap.
  • Downstream PDCCH if there is a pre-configured downlink assignment on the carrier that does not need to enable the scheduling gap within the scheduling gap, the UE receives data on the DL-SCH according to the pre-configured downlink assignment.
  • the behavior of the UE on other carriers is the same as that of the above manner. As shown in FIG.
  • CC2 is activated, and the UE continues to listen to CC1 in the scheduling gap according to its own capability or according to the information of the carrier (CC1) that the base station does not need to enable the scheduling gap carried in the activation command.
  • the PDCCH stops listening to the PDCCH on CC2.
  • the UE continues to receive downlink data on the carrier that does not need to enable the scheduling ga, but stops receiving downlink data on other carriers, thereby effectively preventing the scheduling gap.
  • Loss of internal and downlink data try to ensure that the data transmission of the UE in the scheduling gap is not interrupted, thereby ensuring the reliability and stability of data transmission within the scheduling gap.
  • the uplink data (that is, the data sent by the UE to the base station) is sent.
  • the base station allocates the physical uplink shared channel to the UE on the PDCCH (Physical Uplink Shared).
  • PDCCH Physical Uplink Shared
  • Channel, PUSCH Physical Uplink Shared
  • the UE monitors the scheduling of the PDCCH, and according to the scheduling on the PDCCH, the corresponding PUSCH (the corresponding transmission channel is Uplink Shared Channel, UL-SCH, uplink) Shared channel) Sends upstream data on the resource.
  • the base station allocates a PUSCH resource (configured uplink grant) for transmitting the uplink SPS data to the UE in advance, and the UE may periodically perform the configuration according to the configuration of the base station. Send data on a good PUSCH resource.
  • PUSCH resource Configured uplink grant
  • the base station and the UE may be unified.
  • the UE stops the interception of the scheduling on the downlink PDCCH within the scheduling gap.
  • the UE since the UE receives the uplink grant (UPlink grant) of the PDCCH dynamic scheduling to the UE to actually send data on the UL-SCH allocated by the uplink grant, there is a delay (4 ms in LTE), so if the UE is in the scheduling gap The uplink grant is received before, but the UE sends the UL-SCH data according to the uplink grant just in the scheduling gap, and the UE does not send data on the UL-SCH in the scheduling gap, and waits for subsequent adaptive retransmission.
  • the UE processes the pre-configured uplink grant, that is, processes and saves the HARQ-related information, including the value of the New Data Indicator (NDI), that is, if If the original NDI is 0, it is set to 1. If the original NDI is 1, it is set to 0.
  • NDI New Data Indicator
  • the HARQ entity is notified that there is pre-configured uplink grant and HARQ related information at this moment, but the UE does not send data on the pre-configured UL-SCH.
  • the trigger process is special.
  • a special method may be used for processing, that is, the UE adds a judgment condition based on the condition that the existing judgment triggers the BSR and the PHR transmission:
  • the UE does not trigger the transmission of the BSR and the PHR in the scheduling gap.
  • the UE can normally send the BSR and the PHR after the scheduling gap, thereby ensuring the reliability of the BSR and PHR transmission.
  • Manner 2 Preferably, for the processing mode 2 of the scheduling gap, the UE determines, according to the scheduling gap information bit carried in the received configuration/delete/activate/deactivate SCC command, whether the scheduling gap is enabled, and the scheduling gap is enabled. Then, the behavior of the UE in the scheduling gap is the same as that of the above manner. If the scheduling gap is not enabled, the UE monitors the PDCCH in the same manner as in the first embodiment.
  • the UE receives the uplink grant before the scheduling gap, but the UE sends the UL-SCH data according to the uplink grant, which is in the scheduling gap, the UE normally sends the UL according to the uplink grant on the carrier that does not need the scheduling gap.
  • SCH data Specifically, if the UE is in the scheduling gap and does not need to enable the scheduling authorization on the carrier of the scheduling ga, the UE sends data on the UL-SCH according to the pre-configured uplink grant.
  • the behavior of the UE on other carriers is the same as that of the above manner. It should be noted that the manners of processing the uplink data scheduling in the foregoing manners 1 and 2 also apply.
  • the UE In the uplink data scheduling processing method of the second mode, in the scheduling gap, the UE continues to send uplink data on the carrier that does not need to enable the scheduling ga, but stops transmitting uplink data on other carriers, thereby effectively preventing the scheduling gap.
  • the loss of intra-uplink data on the other hand, tries to ensure that the data transmission of the UE in the scheduling gap is not interrupted, thereby ensuring the reliability and stability of data transmission within the scheduling gap.
  • Application Example 3 Uplink Control Information Transmission In carrier aggregation, Channel Status Indication (CSI), including Channel Quality Indication (CQI), recoding matrix indicator (PMI), rank The indication ( Rank Indication, RI ), etc. can only be sent on the PUCCH of the UL PCC.
  • CSI Channel Status Indication
  • CQI Channel Quality Indication
  • PMI recoding matrix indicator
  • rank Indication Rank Indication, RI
  • Uplink HARQ feedback if sent on the PUCCH, can only be sent on the PUCCH of the UL PCC.
  • the Scheduling Request (SR) can also be sent only on the PUCCH of the UL PCC.
  • the uplink Sounding Reference Signal (SRS) can be transmitted on all activated carriers according to the configuration of the base station. For convenience of description, this embodiment refers to the above information as uplink control information. According to the different processing modes of the scheduling gap, there are two different ways to schedule the uplink control information.
  • Manner 1 According to the processing mode of the scheduling gap, since at least one radio transceiver device of the UE is in an adjusted state, in order to avoid unnecessary loss of uplink control information, the base station and the UE may uniformly agree (through protocol specification) that the UE is in the scheduling gap. Stop sending CQI/PMI/RI/HARQ feedback/SR/SRS.
  • Manner 2 Preferably, for the processing mode 2 of the scheduling gap, the UE determines, according to the scheduling gap information bit carried in the received configuration/delete/activate/deactivate SCC command, whether the scheduling gap is enabled, and the scheduling is enabled. Gap, the behavior of the UE in the scheduling gap is the same as that in the above manner.
  • the UE may continue to send the SRS on the uplink carrier that does not need to enable the scheduling gap according to its own capabilities. If the PCC does not need to enable the scheduling gap, the UE continues to send the CQI/PMI/RI on the UL PCC. /HARQ feedback / SR/SRS.
  • the present invention provides a scheduling processing method and user equipment in a multi-carrier system, which can prevent data loss in a scheduling gap and avoid reliability and stability degradation of data transmission in a scheduling gap. In addition, it is also ensured that the data transmission of the UE in the scheduling gap is not interrupted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

本发明公开了一种多载波系统中的调度处理方法和用户设备,其中,所述方法包括:在调度间隙内,用户设备(UE)停止在所有载波上接收和发送数据;或者,在调度间隙内,UE停止在正在进行调整的载波上接收和发送数据,在除正在进行调整的载波之外的一个或多个载波上接收和/或发送数据。本发明能够防止在调度间隙内数据的丢失,避免了调度间隙内数据传输的可靠性及稳定性降低。另外,又尽量保证UE在调度间隙内的数据传输不被中断。

Description

一种多载波系统中的调度处理方法和用户设备
技术领域 本发明涉及通信领域, 具体而言, 涉及一种多载波系统中的调度处理方 法和用户设备 ( User Equipment, UE ) 。
背景技术 为向移动用户提供更高的数据速率, 高级长期演进系统 (Long Term Evolution Advance , LTE-A )提出了载波聚合技术( Carrier aggregation , CA ) , 其目的是为具有相应能力的用户设备(User Equipment, UE )提供更大宽带, 提高 UE的峰值速率。 长期演进系统( Long Term Evolution, LTE )中, 系统 支持的最大传输带宽为 20MHz , 载波聚合是将两个或者更多的分量载波 ( Component Carriers, CC, 可以简称为载波) 聚合起来支持大于 20MHz, 最大不超过 100MHz的传输带宽,釆用载波聚合技术的 LTE-A系统是一种多 载波系统。 进行载波聚合的各个分量载波在频域上可以是连续的, 也可以是不连续 的, 如图 1 所示。 对于不连续的分量载波, UE需要有多个无线电收发设备 ( transceiver )才能同时在多个不连续的分量载波上的收发数据; 对于在频域 上连续的分量载波, 相对于单载波系统中最大带宽为 20MHz 的无线电收发 设备, UE需要有一个最大带宽超过 20MHz的无线电收发设备才能同时在多 个连续的分量载波上收发数据,或者如果 UE有多个无线电收发设备, UE可 以使用该多个无线电收发设备同时在该多个连续分量载波上收发数据。 在多载波系统中, UE工作在多个载波上, 需要使用带宽超过 20MHz的 无线电收发设备或者使用多个无线电收发设备, 将大大增加 UE的电池耗电 量。 因此考虑业务的突发特点, 虽然 UE工作在最高速率最多可能使用多至 5个载波的带宽, 但是在突发间隙, UE的实际业务流量很少或者接近于零, 此时如果 UE还继续在多个载波上等待接收数据,将会导致较高的功率开销。 因此为了延长 UE的工作时间, 关闭不必要开启的无线电收发设备, 减少不 必要的电池消耗, LTE-A系统中引入了载波激活去激活的概念。 UE只在激 活的下行载波上进行数据接收, 如物理下行控制信道 ( Physical Downlink Control Channel, PDCCH ) 的监听; 而对于暂时不用的载波, 基站通过显示 命令通知或隐式规则去激活这些载波,在去激活的载波上,UE不监听 PDCCH 信道, 也不接收物理下行共享信道 ( Physical Downlink Shared Channel, PDSCH )上的数据, 从而达到省电的目的。 基站通过无线资源控制( Radio Resource Control, RRC )信令为 UE配置 至多 5个下行 /上行分量载波, 基站为 UE配置载波时, 会通过显式的配置或 者按照协议约定为 UE配置一个下行主载波(Downlink Primary Component Carrier, DL PCC )和上行主载波 ( Uplink Primary Component Carrier, UL PCC ) , DL PCC和 UL PCC统称为 PCC, PCC之外的其他工作载波称为辅 载波(Secondary Component Carrier, SCO , 包括下行辅载波(DL SCO 和上行辅载波(UL SCO 。 PCC配置即激活, 也即配置好后就可以在 PCC 上进行数据传输, PCC永远不会被去激活。 DL SCC配置并非激活, 基站必 须在配置时或配置后通过 RRC显式信令或者隐式规则通知 UE激活,或者通 过媒体接入控制 ( Medium Access Control, MAC )层信令通知 UE激活后, 基站和 UE才能在 DL SCC上进行数据传输; 相应的,基站可以使用 RRC信 令或者隐式规则或者 MAC层信令通知 UE去激活 DL SCC。 UL SCC被配置 后, 基站可以使用类似激活去激活 DL SCC的方式激活去激活 UL SCC, 或 者 UL SCC配置即激活, 取决于网络决策。
发明内容 本发明所要解决的技术问题是, 提供一种多载波系统中的调度处理方法 和用户设备, 避免调度间隙内数据传输的可靠性及稳定性降低。 为了解决上述技术问题,本发明提供一种多载波系统中的调度处理方法, 包括: 在调度间隙内, 用户设备( UE )停止在所有载波上接收和发送数据; 或 者, 在调度间隙内, UE停止在正在进行调整的载波上接收和发送数据, 在 除正在进行调整的载波之外的一个或多个载波上接收和 /或发送数据。 优选地, 所述调度间隙是指: 所述 UE接收到配置辅载波(SCC ) 、 删 除 SCC、 激活 SCC或去激活 SCC的命令后, 相关的无线电收发设备从开始 进行调整直到调整结束的过程。 优选地, 所述调度间隙的时长由基站和 UE预先约定或者由基站配置给
UE。 优选地, 在 UE停止在所有载波上接收和发送数据的步骤中, 所述 UE 根据预先与基站的约定或自身能力或基站的指示, 停止在所有载波上接收和 发送数据。 优选地,在除正在进行调度的载波之外的一个或多个载波上接收和 /或发 送数据的步骤中,所述 UE根据自身能力或基站的指示,接收和 /或发送数据。 优选地, 所述方法还包括: 基站发送给 UE的配置、 删除、 激活或去激 活 SCC的命令携带不需要进行调整的激活载波的信息; 在所述 UE根据基站 的指示, 接收和 /或发送数据的步骤中, 所述 UE根据接收到的所述不需要进 行调整的激活载波的信息,在所述不需要进行调整的激活载波上接收和 /或发 送数据; 或者, 基站发送给 UE的配置、 删除、 激活或去激活 SCC的命令携带需要进行 调整的激活载波的信息; 在所述 UE根据基站的指示, 接收和 /或发送数据的 步骤中, 所述 UE根据接收到的所述需要进行调整的激活载波的信息, 在不 需要进行调整的激活载波上接收和 /或发送数据。 优选地,所述不需要进行调整的激活载波的信息包括载波索引和 /或载波 绝对载频号; 所述需要进行调整的激活载波的信息包括载波索引和 /或载波绝对载频 号。 优选地,所述停止接收数据包括:停止监听物理下行控制信道( PDCCH ), 以及不在预配置的下行共享信道(DL-SCH )上接收数据; 所述停止发送数据包括: 不在上行共享信道(UL-SCH )上发送数据, 以及停止发送信道质量指示( CQI )、预编码矩阵指示( PMI )、秩指示( RI ) 、 混合自适应重传( HARQ )反馈、上行调度请求( SR )和探测参考信号( SRS )。 优选地, 所述停止发送数据还包括: 在调度间隙内不触发发送緩冲区状 态报告 ( BSR )和功率余量报告 ( PHR ) 。 优选地, 若在调度间隙之前, 所述 UE接收到上行授权, 根据所述上行 授权在 UL-SCH上待发送的数据正好在调度间隙内, 则在调度间隙内 UE停 止在所有载波上接收和发送数据的步骤中, 所述 UE处理所述上行授权, 但 不在 UL-SCH上发送待发送的数据; 所述方法还包括: 在调度间隙之后, 对 所述待发送的数据进行后续的自适应重传; 若在调度间隙之前, 所述 UE接收到上行授权, 根据所述上行授权在 UL-SCH上待发送的数据正好在调度间隙内, 则在调度间隙内 UE停止在正 在进行调整的载波上接收和发送数据的步骤中,所述 UE处理所述上行授权, 但不在所述正在进行调整的载波的 UL-SCH上发送待发送的数据; 在除正在 进行调整的载波之外的一个或多个载波上接收和 /或发送数据的步骤中,所述 UE在除正在进行调整的载波之外的一个或多个载波上的 UL-SCH上发送所 述待发送的数据。 为了解决上述技术问题, 本发明提供一种用户设备(UE ) , 包括控制模 块和处理模块; 所述控制模块设置成: 在调度间隙内, 控制处理模块停止在所有载波上 接收和发送数据; 或者, 控制处理模块停止在正在进行调整的载波上接收和 发送数据,在除正在进行调整的载波之外的一个或多个载波上接收和 /或发送 数据; 所述处理模块设置成: 根据所述控制模块的控制停止接收和发送数据, 或根据所述控制模块的控制接收和 /或发送数据。 优选地, 所述控制模块还设置成: 根据预先与基站的约定或所述 UE的 自身能力或基站的指示, 控制所述处理模块停止在所有载波上接收和发送数 据。 优选地, 所述控制模块还设置成: 根据所述 UE的自身能力或基站的指 示, 控制所述处理模块在除正在进行调整的载波之外的一个或多个载波上接 收和 /或发送数据。 优选地,所述停止接收数据包括:停止监听物理下行控制信道( PDCCH ), 以及不在预配置的下行共享信道(DL-SCH )上接收数据; 所述停止发送数据包括: 不在上行共享信道(UL-SCH )上发送数据, 以及停止发送信道质量指示( CQI )、预编码矩阵指示( PMI )、秩指示( RI ) 、 混合自适应重传( HARQ )反馈、上行调度请求( SR )和探测参考信号( SRS )。 优选地, 所述停止发送数据还包括: 在调度间隙内不触发发送緩冲区状 态报告 ( BSR )和功率余量报告 ( PHR ) 。
本发明防止在调度间隙内数据的丟失, 避免了调度间隙内数据传输的可 靠性及稳定性降低。 另外, 又尽量保证 UE在调度间隙内的数据传输不被中 断。
附图概述 此处所说明的附图用来提供对本发明的进一步理解, 构成本申请的一部 分, 本发明的示意性实施例及其说明用于解释本发明, 并不构成对本发明的 不当限定。 在附图中: 图 1是载波聚合示意图; 图 2是本发明实施例的配置 /删除 /激活 /去激活 SCC时 UE侧相关无线电 收发设备调整时间示意图; 图 3 是本发明实施例的一种 UE的无线电收发设备。
本发明的较佳实施方式
在配置 (配置时同时激活, 包括 PCC重配置到去激活的 SCC上或未配 置的 SCC上) SCC, 删除 SCC, 激活 SCC (包括 RRC信令激活或者 MAC 信令激活) , 去激活 SCC时, 如果在配置 /激活之前或者删除 /去激活之后, UE负责该 SCC数据传输的无线电收发设备上还有其他处于激活状态的 CC (包括 PCC和 SCC ) , 则 UE需要调整该无线电收发设备的中心频点, 调整 该无线电收发设备的滤波器设置, 获取各个激活 SCC上的频率偏移等, 该过 程需要维持一段时间, 比如好几个毫秒。 如果 UE是在一个独立的无线电收 发设备上配置 /激活 SCC, 即在配置 /激活 SCC前该无线电收发设备上没有其 他处于激活状态的 CC (包括 PCC和 SCC ) , 则 UE需要开启该无线电收发 设备, 获取各个激活 SCC上的频率偏移等, 该过程同样需要维持一段时间。 配置(配置时同时激活 ) SCC, 删除 SCC, 激活 SCC, 或者去激活 SCC 时, UE 上相关的无线电收发设备需要进行调整, 在相关无线电收发设备进 行调整的过程中, 相关无线电收发设备将无法为 UE收发数据, 如果 UE中 无线电收发设备之外的其他相关模块, 比如负责数据传输调度的 MAC层处 理模块操作不当, 将导致 UE在配置 /删除 /激活 /去激活引起的上述无线电收 发设备调整过程中的数据传输可靠性及稳定性降低。 本发明提出, 在调度间隙 (scheduling gap ) 内, UE停止在所有载波上 接收和发送数据, 或者, 优选地, UE停止在正在进行调整的载波上接收和 发送数据,在除正在进行调整的载波之外的一个或多个载波上接收和 /或发送 数据。 其中, 正在进行调整的载波是指所述载波相关的无线电收发设备正处于 调整过程中。
UE 可以根据预先与基站的约定或自身能力或基站的指示, 停止在所有 载波上接收和发送数据, 也可以 UE根据自身能力或基站的指示, 在除正在 进行调整的载波之外的一个或多个载波上接收和 /或发送数据。 也就是说, UE 可以与基站预先约定, 在调度间隙内停止上下行数据收 发; 或者, UE根据自身能力, 或者基站的指示, 在调度间隙内停止上下行 数据收发, 或者在调度间隙内继续在不需要调整的载波上进行数据收发, 停 止在需要调整的载波上的数据收发。 其中, 不需要进行调整的载波是指所述载波相关的无线电收发设备未处 于调整过程中。 其中, 调度间隙是指: 所述 UE接收到配置、 删除、 激活或去激活 SCC 的命令后, 相关的无线电收发设备从开始进行调整直到调整结束的过程。 调度间隙的时长由基站和 UE预先约定或者由基站配置给 UE。 停止接收数据包括: 停止监听 PDCCH, 以及不在预配置的下行共享信 道(DL-SCH )上接收数据; 所述停止发送数据包括: 不在上行共享信道(UL-SCH )上发送数据, 以及停止发送信道质量指示( CQI )、预编码矩阵指示( PMI )、秩指示( RI ) 、 混合自适应重传( HARQ )反馈、上行调度请求( SR )和探测参考信号( SRS ) , 以及, 还可以包括: 在调度间隙内不触发发送緩冲区状态 4艮告 (BSR )和功 率余量报告( PHR ) 。 若釆用在调度间隙内 UE停止在所有载波上接收和发送数据的方式: 若 在调度间隙之前, UE接收到上行授权, 根据所述上行授权在 UL-SCH上待 发送的数据正好在调度间隙内,则在调度间隙内 UE可以处理所述上行授权, 但不在 UL-SCH上发送待发送的数据; 在调度间隙之后, 对所述待发送的数 据进行后续的自适应重传; 若釆用在调度间隙内 UE 停止在正在进行调整的载波上接收和发送数 据,在除正在进行调整的载波之外的一个或多个载波上接收和 /或发送数据的 方式:若在调度间隙之前, UE接收到上行授权,根据所述上行授权在 UL-SCH 上待发送的数据正好在调度间隙内, 则在调度间隙内 UE可以处理所述上行 授权, 但不在所述正在进行调整的载波的 UL-SCH上发送待发送的数据, 在 除正在进行调整的载波之外的一个或多个载波上的 UL-SCH上发送所述待发 送的数据。
下文中将参考附图并结合实施例来详细说明本发明。 需要说明的是, 在 不冲突的情况下, 本申请中的实施例及实施例中的特征可以相互组合。 图 2是根据相关技术的配置 /删除 /激活 /去激活 SCC时 UE侧相关无线电 收发设备调整时间示意图。
UE在 T1时刻接收到配置 /删除 /激活 /去激活 SCC的命令,在 T2时刻 UE 相关的无线电收发设备开始进行调整, 直到 T3时刻调整结束, T2到 T3时 刻 UE的无线电收发设备进行调整的过程, 称为调度间隙( scheduling gap ) , 或者调度限制时间 ( scheduling restriction time ) , 或者中断时间 ( interruption time )。在调度间隙之外的其他时间, UE的无线电收发设备都处于稳定状态。 需要说明的是, 根据开启无线电收发设备调整的不同策略, 上述 T1 和 T2也可以重合,即 UE—接收到配置 /删除 /激活 /去激活 SCC的命令即开启无 线电收发设备的调整。 比如需要配置 /删除 /激活 /去激活的 SCC与 PCC工作 在不同的无线电收发设备上, 即该 SCC工作在无线电收发设备 1 上, PCC 工作在无线电收发设备 2上。 因为对配置 /删除 /激活 /去激活的 SCC命令的反 馈在 PCC上发送, 因此 UE在 T1时刻接收到配置 /删除 /激活 /去激活的 SCC 命令后, 可以直接开始调整无线电收发设备 1。 对于调度间隙, 可以有以下处理方式: 方式一, 在调度间隙内, UE根据预先与基站的约定, 停止在所有载波 上接收和发送数据: 不同的 UE能力不同, 因此调度间隙在不同的 UE上实现时可能时长不 同, 为了屏蔽 UE能力的不同, 协议规范可以保守规定最大的调度间隙, 或 者基站可以在发送给 UE的配置信息中配置统一的调度间隙。
UE接收到配置 /删除 /激活 /去激活 SCC的命令后, 或者 UE接收到配置 / 删除 /激活 /去激活 SCC的命令, 并发送对该命令的反馈后, 启用 scheduling ga , 达到上述配置的时间或规定的时候后停止 scheduling ga 。 也可以是, UE接收到配置 /删除 /激活 /去激活 SCC的命令后, 或者 UE 接收到配置 /删除 /激活 /去激活 SCC的命令, 并发送对该命令的反馈后, 启动 一个 T— scheduling定时器, 该定时器时长为协议规范规定的调度间隙时长或 者基站配置给 UE的调度间隙时长。 方式二, UE根据自身能力或基站的指示, 停止在所有载波上接收和发 送数据, 或者, 在除正在进行调整的载波之外的一个或多个载波上接收和 / 或发送数据: 基站通过 UE的能力信息, 可以通知 UE是否在接收到配置 /删除 /激活 / 去激活 SCC的命令后, 或者 UE接收到配置 /删除 /激活 /去激活 SCC的命令, 并发送对该命令的反馈后, 启用 scheduling ga 或者启动上述 T— scheduling 定时器(为描述方便, 以下实施例中统一称为启用 scheduling gap )。 如果需 要启用 scheduling gap, 基站还可以根据 UE能力, 在上述配置 /删除 /激活 /去 激活 SCC的命令中通知 UE scheduling ga 的时长。如果不需要启用 scheduling gap,基站还可以在上述配置 /删除 /激活 /去激活 SCC的命令中通知 UE不需要 启用 scheduling gap的激活载波的信息, 比如载波索引 ( CC index )信息或者 载波色对载频号 ( Absolute Radio Frequency Channel Number, ARFCN ); 或 者相反的, 基站可以在上述配置 /删除 /激活 /去激活 SCC的命令中通知 UE需 要启用 scheduling gap的激活载波的信息。 或者, UE根据自身能力决定接收到配置 /删除 /激活 /去激活 SCC的命令 后, 决定是否启用 scheduling gap或者不启用 scheduling gap, 将该决定告知 基站, 再由基站通过配置 /删除 /激活 /去激活 SCC的命令通知是否釆纳该 UE 的决定。 需要说明的是, 接收到配置 /删除 /激活 /去激活 SCC的命令, UE至少有 一个无线电收发设备需要进行调整, 即 UE射频模块的调度间隙始终需要, 如无特殊说明发明所述启用 scheduling ga 或者不启用 scheduling ga 均针对 UE的其他处理模块而言, 比如 UE的 MAC层处理模块, RRC层处理模块。 所述需要启用 scheduling gap的载波是指所述载波相关的无线电收发设备正 处于调整过程中; 所述不需要启用 scheduling gap的载波是指所述载波相关 的无线电收发设备未处于调整过程中。 基站可以在配置 /删除 /激活 /去激活 SCC的命令中携带一个信息位 (本发 明中称其为调度间隙信息位) , 该信息位设置成 1 (或者 TRUE ) , 则表示 UE接收到配置 /删除 /激活 /去激活 SCC的命令后, 或者 UE接收到配置 /删除 / 激活 /去激活 SCC的命令, 并发送对该命令的反馈后, 启用 scheduling gap, 否则该信息位设置成 0 (或者 FALSE ) , 则表示 UE接收到配置 /删除 /激活 / 去激活 SCC的命令后, 或者 UE接收到配置 /删除 /激活 /去激活 SCC的命令, 并发送对该命令的反馈后, 不启用 scheduling gap。 基站设置上述信息位的具体依据可以是, 基站通过 UE的能力信息判断 UE接收到配置 /删除 /激活 /去激活 SCC的命令时, UE除了需要进行调整的无 线电收发设备外, 不存在其他不需要进行调整且处于开启状态 (即这些无线 电设备上有激活的载波) 的无线电收发设备, 则基站把调度间隙信息位设置 成 1 ; 否则如果 UE除了需要进行调整的无线电收发设备外, 还存在其他不 需要进行调整且处于开启状态的无线电收发设备, 则基站把调度间隙信息位 设置成 0。 如图 3所示, UE —共有两个无线电收发设备, T1 时刻, UE工作在载 波 1 ( CC1 )上, 无线电收发设备 1负责 CC1上的数据收发, 无线电收发设 备 2处于未开启状态。 T2时刻基站需要为 UE激活载波 2 ( CC2 ) , 基站根 据 UE能力信息或 UE根据自身的能力上报的决定判断 UE可以启用无线电收 发设备 2来负责 CC2上的数据收发, 即 UE接收到激活命令后只需要开启无 线电收发设备 2, 无线电收发设备 1不需要进行调整, 则基站把调度间隙信 息位设置成 0。
相应地, 本发明实施例的 UE, 包括控制模块和处理模块; 所述控制模块设置成: 在调度间隙内, 控制处理模块停止在所有载波上 接收和发送数据; 或者, 控制处理模块停止在正在进行调整的载波上接收和 发送数据,在除正在进行调整的载波之外的一个或多个载波上接收和 /或发送 数据; 所述处理模块是无线电收发设备、 MAC层处理模块和 RRC层处理模块 等的总称, 其设置成: 根据所述控制模块的控制停止接收和发送数据, 或根 据所述控制模块的控制接收和 /或发送数据。 所述控制模块还可设置成: 根据预先与基站的约定或所述 UE的自身能 力或基站的指示, 控制所述处理模块停止在所有载波上接收和发送数据, 以 及, 还可设置成: 根据所述 UE的自身能力或基站的指示, 控制所述处理模 块在除正在进行调整的载波之外的一个或多个载波上接收和 /或发送数据。
以下分别就下行数据接收和上行数据发送的应用示例, 详细说明在无线 电收发设备调整过程中多载波系统下的调度处理方法。 应用示例一、 下行数据接收 在 LTE系统中, 下行数据 (即基站发送给 UE的数据 ) 的接收过程为, 对于动态调度( Dynamic Scheduling ) 的数据, 基站在 PDCCH上为 UE分配 在 PDSCH上接收下行数据的下行物理资源, 及相关的调度信息, 如混合自 适应重传( Hybrid Automatic Repeat Request, HARQ )相关的信息, UE监听 PDCCH的调度, 根据 PDCCH上的调度在相应的 PDSCH (所对应的传输信 道为 Downlink Shared Channel, DL-SCH, 下行共享信道)资源上接收下行数 据。 特殊的, 对于釆用半持久调度(Semi-Persistent Scheduling, SPS ) 的数 据, 基站会预先为 UE分配好接收下行 SPS数据的 PDSCH资源 (configured downlink assignment, 预配置的下行指派) , UE可以根据基站的配置, 周期 性地在这些配置好的 PDSCH资源上接收数据。 根据调度间隙的不同处理方式, 对于下行数据的调度处理也有两种不同 的方式。 方式一、 根据调度间隙的处理方式一, 由于 UE的至少一个无线电收发 设备正处于调整状态, 为了避免不必要的数据丟失, 基站和 UE可以统一约 定(通过协议规范约定 ) UE在调度间隙内停止监听下行 PDCCH上的调度。 特殊的, 如果在调度间隙内正好有预配置的下行指派, UE不在 DL-SCH上 接收数据。 方式二、 优选的, 对于调度间隙的处理方式二, UE根据所接收到的配 置 /删除 /激活 /去激活 SCC 的命令中携带的调度间隙信息位, 判断是否启用 scheduling gap, ¾口果启用 scheduling gap, 则 UE在调度间隙内的行为同上述 方式一的处理。 如果不启用 scheduling gap, 则 UE可以根据自身的能力, 继 续在不需要启用 scheduling gap的激活载波上监听下行 PDCCH。 上述不需要 启用 scheduling gap的激活载波由不需要进行调整的无线电收发设备负责数 据收发。或者如果不启用 scheduling gap且基站在配置 /删除 /激活 /去激活 SCC 的命令中还携带了不需要启用 scheduling gap的载波的信息,则 UE继续在基 站通知的不需要启用 scheduling gap的载波上监听下行 PDCCH。 特殊的, 如 果在调度间隙内, 不需要启用 scheduling gap的载波上有预配置的下行指派, UE根据预配置的下行指派在 DL-SCH上接收数据。 UE在其他载波上的行为 同上述方式一的处理。 以图 3为例, T2时刻, CC2被激活, UE根据自身的能力, 或者根据基 站在激活命令中携带的不需要启用 scheduling gap的载波(CC1 )的信息, 在 调度间隙内继续监听 CC1上的 PDCCH, 停止监听 CC2上的 PDCCH。 釆用方式二的下行数据调度处理方法, 在调度间隙内, UE 继续在不需 要启用 scheduling ga 的载波上接收下行数据, 但停止在其他载波上接收下 行数据, 一方面有效的防止了在调度间隙内下行数据的丟失, 另一方面又尽 量保证 UE在调度间隙内的数据传输不被中断, 从而保证了调度间隙内数据 传输的可靠性及稳定性。 应用示例二、 上行数据发送 在 LTE系统中, 上行数据 (即 UE发送给基站的数据 ) 的发送过程为, 对于动态调度的数据, 基站在 PDCCH 上为 UE 分配在物理上行共享信道 ( Physical Uplink Shared Channel, PUSCH )上发送上行数据的上行物理资源, 及相关的调度信息, UE监听 PDCCH的调度, 根据 PDCCH上的调度在相应 的 PUSCH (所对应的传输信道为 Uplink Shared Channel, UL-SCH, 上行共 享信道) 资源上发送上行数据。 特殊的, 对于釆用半持久调度的数据, 基站 会预先为 UE分配好发送上行 SPS数据的 PUSCH资源 ( configured uplink grant, 预配置的上行授权) , UE 可以根据基站的配置周期性的在这些配置 好的 PUSCH资源上发送数据。 根据调度间隙的不同处理方式, 对上行数据的调度处理也有两种不同的 方式。 方式一、 根据调度间隙的处理方式一, 由于 UE的至少一个无线电收发 设备正处于调整状态, 为了避免不必要的数据丟失, 基站和 UE可以统一约 定(通过协议规范约定) UE在调度间隙内停止监听下行 PDCCH上的调度。 此外由于 UE接收到 PDCCH动态调度的上行授权 ( Uplink grant )到 UE真 正在上行授权所分配的 UL-SCH上发送数据会存在一段时间的延迟( LTE中 一般为 4ms ) , 因此如果 UE在调度间隙之前接收到上行授权, 但是 UE根 据该上行授权发送 UL-SCH数据正好在在调度间隙内, 则 UE在调度间隙内 不在 UL-SCH上发送数据, 等待后续的自适应重传。 特殊的, 如果在调度间 隙内正好有预配置的上行授权, UE 处理该预配置上行授权, 即处理并保存 HARQ相关的信息, 包括翻转新数据指示( New Data Indicator , NDI )的值, 即若原来 NDI为 0, 则设置成 1 , 原来 NDI为 1 , 则设置成 0; 通知 HARQ 实体该时刻有预配置的上行授权及 HARQ相关的信息, 但 UE不在预配置的 UL-SCH上发送数据。 特别的, 对于两种特殊的上行数据的传输, 即 UE的上行緩冲区状态报 告( Buffer Status Report , BSR )和功率余量 4艮告 ( Power Headroom Report , PHR ) , 由于其触发过程比较特殊, 除了按照上述普通上行数据的发送方法 处理之外, 还可以釆用特殊的方法进行处理, 即 UE 在现有判断是否触发 BSR, PHR发送的条件基础上, 增加判断条件:
UE在调度间隙内不触发 BSR, PHR的发送。 根据 BSR, PHR的发送机 制, UE可以在调度间隙后正常发送 BSR, PHR, 从而保证了 BSR, PHR发 送的可靠性。 方式二、 优选的, 对于调度间隙的处理方式二, UE根据所接收到的配 置 /删除 /激活 /去激活 SCC 的命令中携带的调度间隙信息位, 判断是否启用 scheduling gap, 口果启用 scheduling gap, 则 UE在调度间隙内的行为同上述 方式一的处理。 如果不启用 scheduling gap, 则 UE监听 PDCCH的行为同实 施例一。 特殊的, 如果 UE在调度间隙之前接收到上行授权, 但是 UE根据 该上行授权发送 UL-SCH 数据正好在在调度间隙内, 则 UE 在不需要 scheduling gap的载波上根据该上行授权正常发送 UL-SCH数据。特殊的,如 果 UE在调度间隙内,不需要启用 scheduling ga 的载波上有预配置的上行授 权, UE根据预配置的上行授权在 UL-SCH上发送数据。 UE在其他载波上的 行为同上述方式一的处理。 需要说明的是, 上述方式一和方式二处理上行数据调度的方式, 也适用
釆用方式二的上行数据调度处理方法, 在调度间隙内, UE 继续在不需 要启用 scheduling ga 的载波上发送上行数据, 但停止在其他载波上发送上 行数据, 一方面有效的防止了在调度间隙内上行数据的丟失, 另一方面又尽 量保证 UE在调度间隙内的数据传输不被中断, 从而保证了调度间隙内数据 传输的可靠性及稳定性。 应用示例三、 上行控制信息发送 在载波聚合中, 上行信道状态指示 ( Channel Status Indication, CSI ) , 包括信道质量指示 (Channel Quality Indication, CQI ) , 预编码矩阵指示 ( recoding matrix indicator, PMI ) , 秩指示 ( Rank Indication, RI )等只能 在 UL PCC的 PUCCH上发送。 上行 HARQ反馈如果在 PUCCH上发送, 也 只能在 UL PCC的 PUCCH上发送。 上行调度请求( Scheduling Request, SR ) 也只能在 UL PCC 的 PUCCH上发送。 而上行的探测参考信号 (Sounding reference signal, SRS )根据基站的配置, 可以在所有激活载波上发送。 为描 述方便, 本实施例称以上信息为上行控制信息。 根据调度间隙的不同处理方式, 对上行控制信息的调度处理也有两种不 同的方式。 方式一、 根据调度间隙的处理方式一, 由于 UE的至少一个无线电收发 设备正处于调整状态, 为了避免不必要的上行控制信息丟失, 基站和 UE可 以统一约定 (通过协议规范约定 ) UE 在调度间隙内停止发送 CQI/PMI/RI/HARQ反馈 /SR/SRS。 方式二、 优选的, 对于调度间隙的处理方式二, UE根据所接收到的配 置 /删除 /激活 /去激活 SCC 的命令中携带的调度间隙信息位, 判断是否启用 scheduling gap, ¾口果启用 scheduling gap, 则 UE在调度间隙内的行为同上述 方式一的处理。 如果不启用 scheduling gap, 则 UE可以根据自身的能力, 继 续在不需要启用 scheduling gap的上行载波上发送 SRS, 如果 PCC也不需要 启用 scheduling gap, 则 UE继续在 UL PCC上发送 CQI/PMI/RI/HARQ反馈 / SR/SRS。
尽管本发明结合特定实施例进行了描述, 但是对于本领域的技术人员来 说, 可以在不背离本发明的精神或范围的情况下进行修改和变化。 这样的修 改和变化被视作在本发明的范围和附加的权利要求书范围之内。
工业实用性 本发明提供一种多载波系统中的调度处理方法和用户设备, 能够防止在 调度间隙内数据的丟失,避免了调度间隙内数据传输的可靠性及稳定性降低。 另外, 又尽量保证 UE在调度间隙内的数据传输不被中断。

Claims

权 利 要 求 书
1、 一种多载波系统中的调度处理方法, 包括: 在调度间隙内, 用户设备( UE )停止在所有载波上接收和发送数据; 或 者,
在调度间隙内, UE停止在正在进行调整的载波上接收和发送数据, 在 除正在进行调整的载波之外的一个或多个载波上接收和 /或发送数据。
2、 如权利要求 1所述的方法, 其中: 所述调度间隙是指: 所述 UE接收到配置辅载波(SCC ) 、 删除 SCC、 激活 SCC或去激活 SCC的命令后, 相关的无线电收发设备从开始进行调整 直到调整结束的过程。
3、 如权利要求 2所述的方法, 其中: 所述调度间隙的时长由基站和 UE预先约定或者由基站配置给 UE。
4、 如权利要求 1所述的方法, 其中: 在 UE停止在所有载波上接收和发送数据的步骤中, 所述 UE根据预先 与基站的约定或自身能力或基站的指示,停止在所有载波上接收和发送数据。
5、 如权利要求 1所述的方法, 其中: 在除正在进行调度的载波之外的一个或多个载波上接收和 /或发送数据 的步骤中, 所述 UE根据自身能力或基站的指示, 接收和 /或发送数据。
6、 如权利要求 5所述的方法, 其中: 所述方法还包括: 基站发送给 UE的配置、 删除、 激活或去激活 SCC的 命令携带不需要进行调整的激活载波的信息; 在所述 UE根据基站的指示, 接收和 /或发送数据的步骤中, 所述 UE根据接收到的所述不需要进行调整的 激活载波的信息, 在所述不需要进行调整的激活载波上接收和 /或发送数据; 或者, 基站发送给 UE的配置、 删除、 激活或去激活 SCC的命令携带需要进行 调整的激活载波的信息; 在所述 UE根据基站的指示, 接收和 /或发送数据的 步骤中, 所述 UE根据接收到的所述需要进行调整的激活载波的信息, 在不 需要进行调整的激活载波上接收和 /或发送数据。
7、 如权利要求 6所述的方法, 其中: 所述不需要进行调整的激活载波的信息包括载波索引和 /或载波绝对载 频号; 所述需要进行调整的激活载波的信息包括载波索引和 /或载波绝对载频 号。
8、 如权利要求 1所述的方法, 其中: 所述停止接收数据包括: 停止监听物理下行控制信道(PDCCH ) , 以及 不在预配置的下行共享信道(DL-SCH )上接收数据; 所述停止发送数据包括: 不在上行共享信道(UL-SCH )上发送数据, 以及停止发送信道质量指示( CQI )、预编码矩阵指示( PMI )、秩指示( RI ) 、 混合自适应重传( HARQ )反馈、上行调度请求( SR )和探测参考信号( SRS )。
9、 如权利要求 8所述的方法, 其中: 所述停止发送数据还包括: 在调度间隙内不触发发送緩冲区状态报告 ( BSR )和功率余量报告 ( PHR ) 。
10、 如权利要求 8所述的方法, 其中: 若在调度间隙之前, 所述 UE接收到上行授权, 根据所述上行授权在 UL-SCH上待发送的数据正好在调度间隙内, 则在调度间隙内 UE停止在所 有载波上接收和发送数据的步骤中, 所述 UE 处理所述上行授权, 但不在 UL-SCH上发送待发送的数据; 所述方法还包括: 在调度间隙之后, 对所述 待发送的数据进行后续的自适应重传; 若在调度间隙之前, 所述 UE接收到上行授权, 根据所述上行授权在 UL-SCH上待发送的数据正好在调度间隙内, 则在调度间隙内 UE停止在正 在进行调整的载波上接收和发送数据的步骤中,所述 UE处理所述上行授权, 但不在所述正在进行调整的载波的 UL-SCH上发送待发送的数据; 在除正在 进行调整的载波之外的一个或多个载波上接收和 /或发送数据的步骤中,所述
UE在除正在进行调整的载波之外的一个或多个载波上的 UL-SCH上发送所 述待发送的数据。
11、 一种用户设备(UE ) , 包括控制模块和处理模块; 所述控制模块设置成: 在调度间隙内, 控制处理模块停止在所有载波上 接收和发送数据; 或者, 控制处理模块停止在正在进行调整的载波上接收和 发送数据,在除正在进行调整的载波之外的一个或多个载波上接收和 /或发送 数据;
所述处理模块设置成: 根据所述控制模块的控制停止接收和发送数据, 或根据所述控制模块的控制接收和 /或发送数据。
12、 如权利要求 11所述的 UE, 其中: 所述控制模块还设置成: 根据预先与基站的约定或所述 UE的自身能力 或基站的指示, 控制所述处理模块停止在所有载波上接收和发送数据。
13、 如权利要求 11所述的 UE, 其中: 所述控制模块还设置成: 根据所述 UE的自身能力或基站的指示, 控制 所述处理模块在除正在进行调整的载波之外的一个或多个载波上接收和 /或 发送数据。
14、 如权利要求 11所述的 UE, 其中: 所述停止接收数据包括: 停止监听物理下行控制信道(PDCCH ) , 以及 不在预配置的下行共享信道(DL-SCH )上接收数据; 所述停止发送数据包括: 不在上行共享信道(UL-SCH )上发送数据, 以及停止发送信道质量指示( CQI )、预编码矩阵指示( PMI )、秩指示( RI ) 、 混合自适应重传( HARQ )反馈、上行调度请求( SR )和探测参考信号( SRS )。
15、 如权利要求 14所述的 UE, 其中: 所述停止发送数据还包括: 在调度间隙内不触发发送緩冲区状态报告
( BSR )和功率余量报告 ( PHR ) 。
PCT/CN2010/072769 2010-05-14 2010-05-14 一种多载波系统中的调度处理方法和用户设备 WO2011140715A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2010/072769 WO2011140715A1 (zh) 2010-05-14 2010-05-14 一种多载波系统中的调度处理方法和用户设备

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2010/072769 WO2011140715A1 (zh) 2010-05-14 2010-05-14 一种多载波系统中的调度处理方法和用户设备

Publications (1)

Publication Number Publication Date
WO2011140715A1 true WO2011140715A1 (zh) 2011-11-17

Family

ID=44913847

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2010/072769 WO2011140715A1 (zh) 2010-05-14 2010-05-14 一种多载波系统中的调度处理方法和用户设备

Country Status (1)

Country Link
WO (1) WO2011140715A1 (zh)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112533255A (zh) * 2019-09-17 2021-03-19 中兴通讯股份有限公司 一种终端切换控制方法、基站、存储介质
US20210385903A1 (en) * 2018-11-27 2021-12-09 Google Llc User-Equipment-Initiated Cancelation of a Base Station Downlink Transmission
US11889322B2 (en) 2019-03-12 2024-01-30 Google Llc User-equipment coordination set beam sweeping
US11956850B2 (en) 2019-05-22 2024-04-09 Google Llc User-equipment-coordination set for disengaged mode

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101594682A (zh) * 2008-05-29 2009-12-02 大唐移动通信设备有限公司 移动通信系统及其下行反馈方法
CN101784075A (zh) * 2009-01-21 2010-07-21 大唐移动通信设备有限公司 一种配置测量间隙的方法、基站和终端
CN101873646A (zh) * 2009-04-27 2010-10-27 大唐移动通信设备有限公司 一种多载波聚合系统的测量间隙的配置方法及装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101594682A (zh) * 2008-05-29 2009-12-02 大唐移动通信设备有限公司 移动通信系统及其下行反馈方法
CN101784075A (zh) * 2009-01-21 2010-07-21 大唐移动通信设备有限公司 一种配置测量间隙的方法、基站和终端
CN101873646A (zh) * 2009-04-27 2010-10-27 大唐移动通信设备有限公司 一种多载波聚合系统的测量间隙的配置方法及装置

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210385903A1 (en) * 2018-11-27 2021-12-09 Google Llc User-Equipment-Initiated Cancelation of a Base Station Downlink Transmission
US11889322B2 (en) 2019-03-12 2024-01-30 Google Llc User-equipment coordination set beam sweeping
US11956850B2 (en) 2019-05-22 2024-04-09 Google Llc User-equipment-coordination set for disengaged mode
CN112533255A (zh) * 2019-09-17 2021-03-19 中兴通讯股份有限公司 一种终端切换控制方法、基站、存储介质
CN112533255B (zh) * 2019-09-17 2023-11-14 中兴通讯股份有限公司 一种终端切换控制方法、基站、存储介质

Similar Documents

Publication Publication Date Title
US11064407B2 (en) Method and device for performing handover in mobile communication system
TWI758351B (zh) 無線傳輸/接收單元及由其實施的方法
KR101598529B1 (ko) 요소 반송파를 모니터링하고 처리하는 방법 및 장치
JP2020065312A (ja) キャリア・アグリゲーションを使用する不連続受信モードにおける動作
JP2024050868A (ja) 異なる信頼度を有するデータを転送するための方法、システム、およびデバイス
KR102037493B1 (ko) 이동통신 시스템에서 복수의 캐리어를 이용해서 데이터를 송수신하는 방법 및 장치
WO2019062837A1 (zh) 通信方法、装置和设备
JP2018186506A (ja) 無線通信システムにおいて、制御要素送信のためにリソースを要求するための方法及び装置
EP3982580A1 (en) Method and apparatus for transmitting and receiving data using plurality of carriers in mobile communication system
JP2017055442A (ja) 間欠受信における再チューニングギャップおよびスケジューリングギャップ
WO2011147263A1 (zh) Uci信息传输的配置方法和设备
WO2012071888A1 (zh) 基站及其通知非周期信道状态信息报告的触发模式的方法
WO2022147186A1 (en) Methods for data transmission and user equipment using the same
WO2011079662A1 (zh) 一种随机接入方法、设备和系统
WO2011134350A1 (zh) 一种pdcchcc搜索空间的确定方法和设备
WO2011140715A1 (zh) 一种多载波系统中的调度处理方法和用户设备
WO2012142898A1 (zh) 一种在多载波系统中更改小区的方法及装置
KR20120115956A (ko) 이동통신 시스템에서 배터리 세이빙 모드의 단말이 역방향 제어 신호를 전송하는 방법 및 장치
WO2011160289A1 (zh) 一种多载波管理、多载波激活/去激活的方法及装置
WO2012071705A1 (zh) 触发功率剩余量报告的方法和用户设备

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10851222

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 10851222

Country of ref document: EP

Kind code of ref document: A1