WO2011134350A1 - Method and device for determining search spaces on physical downlink control channel component carrier - Google Patents

Method and device for determining search spaces on physical downlink control channel component carrier Download PDF

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Publication number
WO2011134350A1
WO2011134350A1 PCT/CN2011/072763 CN2011072763W WO2011134350A1 WO 2011134350 A1 WO2011134350 A1 WO 2011134350A1 CN 2011072763 W CN2011072763 W CN 2011072763W WO 2011134350 A1 WO2011134350 A1 WO 2011134350A1
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Prior art keywords
pdsch
pdcch
user equipment
bit
activation state
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PCT/CN2011/072763
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French (fr)
Chinese (zh)
Inventor
赵亚利
许芳丽
谌丽
杨晓东
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电信科学技术研究院
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Publication of WO2011134350A1 publication Critical patent/WO2011134350A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method and a device for determining a PDCCH CC search space. Background technique
  • LTE Long Term Evolution
  • 3G 3rd Generation
  • the UE User Equipment
  • the maximum maximum bandwidth of the cell is 20MHz.
  • the service capacity of end users grows exponentially.
  • rate In order to meet the increasing demand of end users, it is necessary to provide more bandwidth to meet the higher peaks required by end users' services and applications. rate.
  • LTE-Advanced LTE-Advanced
  • the peak rate of the system is greatly improved compared to LTE. If only one cell with a maximum bandwidth of 20 MHz is used, the peak rate requirement cannot be achieved.
  • each aggregated cell may include a pair of uplink and downlink component carriers (Component Carriers), or may only include one unidirectional carrier.
  • Component Carriers Uplink and downlink component carriers
  • each of the aggregated Member carrier charges up to 20MHz. As shown in FIG.
  • the downlink physical channel includes: a PDSCH (Physical Downlink Shared Channel), a PBCH (Physical Broadcast Channel), a PMCH (Physical Multicast Channel), and a PCFICH ( Physical Control Format Indicator Channel, Physical Layer Control Information Format (Channel), PDCCH (Physical Layer Control Channel), PHICH (Physical Hybrid ARQ Indicator Channel).
  • PDSCH Physical Downlink Shared Channel
  • PBCH Physical Broadcast Channel
  • PMCH Physical Multicast Channel
  • PCFICH Physical Control Format Indicator Channel
  • Physical Layer Control Information Format Channel
  • PDCCH Physical Layer Control Channel
  • PHICH Physical Hybrid ARQ Indicator Channel
  • the PDCCH channel is mainly used for transmitting scheduling signaling for uplink and downlink
  • the PDSCH channel is mainly used for downlink data transmission.
  • a component carrier has both a PDCCH channel and a PDSCH channel, and both Divided by the time domain, as shown in the PDCCH and PDSCH channel diagrams shown in FIG.
  • the PDCCH on the downlink carrier corresponding to the cell can only schedule the PDSCH of the local cell.
  • the PDCCH on one cell is contaminated (as the interference on the PDCCH channel is severe), at this time, it can be configured to be cross-carrier scheduling, that is, DL (downstream allowed) through other cells
  • the PDCCH of the CC schedules uplink and downlink data transmission of the current cell. It should be noted that when configuring cross-carrier scheduling, one cell can be scheduled by one PDCCH CC at the same time. The scheduling relationship is based on semi-static configuration of the cell.
  • the scheduling relationship between the PDCCH and the PDSCH shown in FIG. 4 may be referred to as a PDSCH-only CC for a DL CC whose PDCCH is contaminated or cannot be used.
  • the PDSCH on CC2 cannot be scheduled by the PDCCH on CC2. But can be PDCCH scheduling on CC1.
  • the base station can configure a working cell set for the UE according to the sum of the maximum rates of all services requested by the UE, and the device is called a CC set.
  • the multi-carrier system selects one CC as the PCC (primary component carrier) of the UE, and the cell where the PCC is located is the PCell (Primary Cell) and configures the carrier set.
  • the other CCs are the SCC (secondary component carrier) of the UE, and the cell where the SCC is located is the SCdl (Secondary Cell).
  • the PCC of different UEs may be different.
  • the PCC of the UE is not allowed to be activated or deactivated.
  • the PCC is always activated by default, and the SCC configuration in the CC set is configured to be deactivated by default. If these SCCs are needed, the Carrier activation operation is performed on the SCC. Since the service of the UE may be volatility and bursty, that is, the traffic volume is small during a certain period of time, and the traffic volume is large during a certain period of time, when the UE traffic is relatively small, in order to better save power, it is required.
  • the CC in the CC set is configured to perform carrier activation or deactivation according to the current service condition of the UE, and for the deactivated carrier, the UE does not need to monitor the PDCCH again, so that a better power saving effect can be achieved.
  • MAC CE MAC control element
  • bitmap bit mapping
  • each bit (bit) corresponds to one CC (due to The PCC will not be activated/deactivated. There may be a separate bit for the PCC, or no. If a bit is set to 0, it means that the corresponding CC is deactivated. If a bit is set to 1, it means activation.
  • Implicit deactivation uses the deactivation timer. If the deactivation timer expires, the corresponding CC is deactivated. It should be noted that carrier activation/deactivation is for the downlink. For SCC, there is currently no carrier activation/deactivation operation for the uplink CC.
  • An embodiment of the present invention provides a method and a device for determining a PDCCH CC search space, to determine a search space of a PDCCH CC according to an activation state of a PDSCH CC when a PDSCH CC carrier is deactivated.
  • the embodiment of the present invention provides a method for determining a PDCCH CC search space, including:
  • the user equipment acquires an activation state of the PDSCH CC, and determines a search space of the PDCCH CC according to the activation state of the PDSCH CC.
  • An embodiment of the present invention provides a user equipment UE, including:
  • An obtaining module configured to acquire an activation state of the PDSCH CC
  • a determining module configured to determine a search space of the PDCCH CC according to the activation state of the PDSCH CC acquired by the acquiring module.
  • the present invention has at least the following advantages:
  • the search space of the PDCCH CC is determined according to the activation state of the PDSCH CC, and the search space can be adjusted in time to achieve the purpose of reducing the unnecessary number of PDCCH blind detections and more effectively saving power.
  • FIG. 1 is a schematic diagram of only one carrier in a cell in a prior art LTE system
  • 2 is a schematic diagram of a carrier aggregation technology in the prior art LTE-A
  • FIG. 3 is a schematic diagram of a PDCCH and a PDSCH channel in the prior art
  • FIG. 4 is a schematic diagram of a scheduling relationship between a PDCCH and a PDSCH in the prior art
  • FIG. 5 is a schematic flowchart of a method for determining a PDCCH CC search space according to Embodiment 1 of the present invention
  • FIG. 6 is a schematic flowchart of a method for determining a PDCCH CC search space according to Embodiment 2 of the present invention.
  • FIG. 7 is a schematic flowchart of a method for determining a PDCCH CC search space according to Embodiment 3 of the present invention.
  • FIG. 8 is a schematic diagram of a format of a MAC CE in Embodiment 3 of the present invention.
  • FIG. 9 is a schematic flowchart of a method for determining a PDCCH CC search space according to Embodiment 4 of the present invention.
  • FIG. 10 is a schematic diagram of a format of a MAC CE in Embodiment 4 of the present invention.
  • FIG. 11 is a block diagram of a cell number according to a cell level in the fifth embodiment of the present invention.
  • FIG. 12 is a schematic diagram of correspondence between each bit bit and CC according to UE level CC number in Embodiment 5 of the present invention.
  • 13 is a fifth embodiment of the present invention for numbering bits from low to high according to frequency
  • Figure 14 is a fifth embodiment of the present invention for numbering bits from high to low according to frequency
  • FIG. 15 is a schematic structural diagram of a user equipment according to Embodiment 6 of the present invention. detailed description
  • the UE in order to increase the peak rate, the UE can work on multiple component carriers, and the multi-carrier system allocates the UE according to the sum of the average rates of services requested by the UE.
  • a set of working carriers is set, and since the service of the UE may be volatility and bursty, when the traffic of the UE is relatively small, for better power saving, the carrier in the working carrier set configured for the UE may be further configured according to the current UE.
  • the carrier case performs a carrier deactivation operation.
  • a method for interacting between a PDCCH CC and a PDSCH CC when a carrier of a multi-carrier system is deactivated is proposed, and a search space of the PDCCH CC is determined according to an activation state of the PDSCH CC.
  • a first embodiment of the present invention provides a method for determining a PDCCH CC search space. As shown in FIG. 5, the method includes the following steps:
  • Step 501 The user equipment acquires an activation state of the PDSCH CC.
  • Step 502 The user equipment determines a search space of the PDCCH CC according to an activation state of the PDSCH CC.
  • the acquiring, by the user equipment, the activation status of the PDSCH CC includes: receiving, by the user equipment, a carrier activation/deactivation MAC CE from the network side device, and acquiring an activation status of the PDSCH CC according to the indication information in the MAC CE.
  • the acquiring, by the user equipment, the activation status of the PDSCH CC according to the indication information in the MAC CE includes: the user equipment acquiring the bit bit corresponding to the PDSCH CC, and when the bit position corresponding to the PDSCH CC is the deactivation indication, the user equipment acquires the activation of the PDSCH CC. The status is deactivated.
  • determining a search space of the PDCCH CC according to the activation state of the PDSCH CC includes: when the activation state of the PDSCH CC is deactivated, the user equipment searches for a search space corresponding to the transmission mode on the PDCCH CC and the scheduled activated PDSCH CC Performing blind detection on the control channel on the PDCCH CC.
  • the user equipment performs blind detection on the control channel on the PDCCH CC according to the search space corresponding to the transmission mode on the PDCCH CC and the scheduled activated PDSCH CC, including: when the PDCCH CC and the PDSCH CC If the search space is not independent, when the control channel on the PDCCH CC is blindly checked, if The scheduling signaling for the deactivated PDSCH CC is detected on the PDCCH CC, and the user equipment ignores the scheduling signaling for the PDSCH CC.
  • the mapping between the bit bit and the CC includes: mapping according to the CC number of the cell level; or mapping based on the CC number of the UE level; or according to the frequency of the CC Perform mapping; or signal the CC and the carrier to deactivate the correspondence of each bit in the MAC CE.
  • the method further includes: deactivating, by the user equipment, the CC according to an activation status of the PDSCH CC.
  • the user equipment deactivates the CC according to the activation state of the PDSCH CC, and specifically includes one or any of the following operations: the user equipment stops monitoring the PDCCH on the corresponding DL CC; the user equipment terminates in the corresponding DL.
  • the PDSCH is received on the CC; if there is a deactivated timer running on the CC, the user equipment stops the timer; the user equipment terminates the uplink transmission only on the UL CC scheduled by the CC; the user equipment terminates for the corresponding DL CC Downlink CQI feedback; if a certain UL CC can only be scheduled by the CC, the user equipment terminates the SRS and/or PHR transmission on the UL CC.
  • the search space of the PDCCH CC is determined according to the activation state of the PDSCH CC, and the search space can be adjusted in time to achieve the purpose of reducing unnecessary PDCCH blind detection times and more effective power saving.
  • the network side device includes, but is not limited to, an eNB (evolved Node B), a relay, and the like. It should be noted that the network side device is not limited to the foregoing device, and all devices located on the network side. All of the embodiments of the present invention are described by taking a base station as an example for convenience of description.
  • the activation state of the PDSCH CC affects the PDCCH CC Specifically, if one PDSCH CC is deactivated, the impact on the search space needs to be considered when performing blind detection on the PDCCH that can schedule the PDSCH CC.
  • the user equipment when the activation state of the PDSCH CC is deactivated, the user equipment performs blind detection on the control channel on the PDCCH CC according to the search space corresponding to the transmission mode on the PDCCH CC and the scheduled activated PDSCH CC. Further, when the search space of the PDCCH CC and the PDSCH CC are not independent, and the control channel on the PDCCH CC is blindly detected, if the scheduling signaling for the deactivated PDSCH CC is detected on the PDCCH CC, the user equipment ignores the PDSCH for the PDSCH. Scheduling signaling for CC.
  • the method includes the following steps:
  • Step 601 The network side device sends a carrier activation/deactivation MAC CE to the UE.
  • a bit bit corresponding to the PDSCH CC may be included, and the bit bit is set as a deactivation indication or an activation indication.
  • Step 602 The user equipment activates/deactivates the MAC CE according to the carrier to acquire an activation state of the PDSCH CC.
  • the active state of the PDSCH CC is deactivated; the bit corresponding to the PDSCH CC is activated.
  • the activation status of the PDSCH CC is acquired as active. For example, when the bit position is 0, the deactivation indication is indicated, and when the bit position is 1, the activation indication is displayed, when the user equipment knows that the bit is 0, the activation state of the PDSCH CC is deactivated; the user equipment knows that When the bit is 1, the activation status of the PDSCH CC is activated.
  • the carrier activation/deactivation MAC CE may not carry the bit bit corresponding to the PDSCH CC.
  • the user equipment may obtain the activation state of the PDSCH CC in other manners. I will not repeat them in detail.
  • Step 603 When the activation state of the PDSCH CC is deactivated, the user equipment determines the search space of the PDCCH CC according to the activation state of the PDSCH CC. That is, the user equipment performs blind detection on the PDCCH scheduling the PDSCH CC according to the search space of the PDCCH CC.
  • the user equipment when the activation state of the PDSCH CC is deactivated, the user equipment performs blind detection on the control channel on the PDCCH CC according to the search space corresponding to the transmission mode on the PDCCH CC and the scheduled activated PDSCH CC. Further, when the search space of the PDCCH CC and the PDSCH CC are not independent, and the control channel on the PDCCH CC is blindly detected, if the scheduling signaling for the deactivated PDSCH CC is detected on the PDCCH CC, the user equipment ignores the PDSCH for the PDSCH. Scheduling signaling for CC.
  • the user equipment needs to perform a deactivation operation on the CC, where the operation after the CC is deactivated includes at least one or any of the following operations. : Stop listening to the PDCCH on the DL CC; if there is a deactivated timer running on the CC, stop the timer; stop the PDSCH transmission on the DL CC (including initial transmission and/or retransmission); ignore the DL CC before UL scheduling (including initial transmission and/or retransmission); stopping transmitting CQI (Channel Quality Indicator) information corresponding to the DL CC on the UL CC; if a certain UL CC can only be scheduled by the DL CC Then, the SRS (Sounding Reference Signal) and/or PHR (Power headroom) transmission are stopped on the corresponding UL CC.
  • CQI Channel Quality Indicator
  • bitmap mode can be used in the carrier activation/deactivation MAC CE.
  • mapping between the bit and the CC can be at least one of the following ways.
  • each bit of the carrier activation/deactivation MAC CE corresponds to one CC.
  • PCC since the PCC will not be activated/deactivated, there may be a separate bit corresponding to the PCC, or there may be no independent bit corresponding to the PCC.
  • the method for determining the PDCCH CC search space proposed by the embodiment of the present invention is described in detail below with reference to a specific application scenario.
  • the multi-carrier system supports three DL CCs, which are recorded as CC1, CC2, and CC3.
  • CC1 and CC3 are both PDCCH CCs and CC2 is PDSCH-only CCs.
  • CC1 is configured with cross-carrier scheduling.
  • CC3 does not have cross-carrier scheduling.
  • the carrier activation/deactivation MAC CE has three reserved bits, and the lowest 5 bits correspond to 5 DL CCs in order from lower to upper respectively; “0" is activated/deactivated in MAC CE Activated, "1" indicates activation.
  • the third embodiment of the present invention provides a method for determining a PDCCH CC search space.
  • the search spaces of CC1 and CC2 are independent.
  • the method includes the following steps:
  • Step 701 At time T1, the UE performs normal data transmission on DL CC1, CC2, and CC3.
  • Step 702 At time T2, the CC1 channel quality is deteriorated or the UE data volume is decreased.
  • the network side decides to deactivate CC2, and the base station sends a carrier activation/deactivation MAC CE to the UE.
  • the format of the carrier activation/deactivation MAC CE is as shown in FIG. 8. The lowest bit represents CC1, the second last bit represents CC2, and the third last bit represents CC3.
  • Step 703 After receiving the carrier activation/deactivation MAC CE, the UE determines that CC2 should be deactivated.
  • Step 704 When the UE performs blind detection on the PDCCH on the CC1, the UE does not need to perform blind detection in the search space corresponding to the CC2 transmission mode.
  • CC1 is configured with cross-carrier scheduling
  • CC2 since CC2 is deactivated, in the process of blindly detecting the PDCCH on CC1, it is not necessary to perform blind detection in the search space corresponding to the CC2 transmission mode.
  • the fourth embodiment of the present invention provides a method for determining a PDCCH CC search space.
  • the search spaces of CC1 and CC2 are not independent.
  • the method includes the following steps:
  • Step 901 At time T1, the UE performs normal data transmission on DL CC1, CC2, and CC3.
  • Step 902 At time T2, the CC1 channel quality deteriorates or the UE data volume decreases, and the network side decides to deactivate CC2, the base station may send a carrier activation/deactivation MAC CE to the UE, and the format of the MAC CE is as shown in FIG.
  • the bit represents CC1
  • the second last bit represents CC2
  • the third last bit represents CC3.
  • Step 903 After receiving the carrier activation/deactivation MAC CE, the UE determines that CC2 should be deactivated.
  • Step 904 When performing blind detection on the PDCCH on CC1, the UE does not need to perform blind detection in the search space independently corresponding to CC2. When there is an overlapping part, if the scheduling for CC2 is detected, the scheduling is ignored.
  • CC2 is removed. If the PDCCH is blindly detected on the CC1, it is not necessary to perform blind detection in the search space independently corresponding to CC2. If there is an overlapping part, if the scheduling for CC2 is detected, the scheduling is ignored and no processing is performed. .
  • the fifth embodiment of the present invention provides a method for determining a PDCCH CC search space.
  • the MAC CE is transmitted in a bitmap manner. It is assumed that the UE aggregates five CCs, which are respectively recorded as CC1/CC2/CC3/CC4/CC5.
  • the five CCs correspond to 1, 3, 2, 4, and 5 respectively; according to the UE level CC number, the five CCs correspond to 1, 3, 5, 4, 2 respectively;
  • the low to high are CC1/CC3/CC2/CC4/CC5.
  • the carrier format of the carrier activation/deactivation MAC CE includes: (1) According to the cell level CC number, the correspondence between each bit of the carrier activation/deactivation MAC CE and the CC is as shown in FIG. 11; (2) According to the UE level CC number, the corresponding relationship between each bit of the carrier activation/deactivation MAC CE and the CC is as shown in FIG. 12; (3) The carrier activates/deactivates each bit of the MAC CE according to the frequency from low to high. The corresponding relationship with CC is shown in Fig. 13; (4) According to the frequency from high to low, the correspondence between each bit of the Bay ij carrier activation/deactivation MAC CE and CC is as shown in Fig. 14.
  • a user equipment provided in Embodiment 6 of the present invention includes:
  • the obtaining module 11 is configured to acquire an activation state of the PDSCH CC.
  • the determining module 12 is configured to determine a search space of the PDCCH CC according to the activation state of the PDSCH CC acquired by the acquiring module 11.
  • the acquiring module 11 is specifically configured to: receive a carrier activation/deactivation MAC CE from the network side device, and acquire an activation state of the PDSCH CC according to the indication information in the MAC CE.
  • the acquiring module 11 is further configured to acquire a bit corresponding to the PDSCH CC. Bit, when the bit position corresponding to the PDSCH CC is a deactivation indication, acquiring an activation state of the PDSCH CC as deactivation.
  • the determining module 12 is specifically configured to: when the activation state of the PDSCH CC is deactivated, according to a search space corresponding to a transmission mode on the PDCCH CC and the scheduled activated PDSCH CC, on the PDCCH CC
  • the control channel is blinded.
  • the determining module 12 is further configured to: when the PDCCH CC and the search space of the PDSCH CC are not independent, perform blind detection on the control channel on the PDCCH CC, if it is detected on the PDCCH CC The scheduling signaling of the activated PDSCH CC ignores the scheduling signaling for the PDSCH CC.
  • the mapping between the bit bit and the CC includes: mapping according to the CC number of the cell level; or mapping based on the CC number of the UE level; or mapping according to the frequency of the CC; or The signaling CC and the carrier are used to deactivate the correspondence between each bit in the MAC CE.
  • the user equipment further includes: a processing module 13, configured to: when the activation state of the PDSCH CC is deactivated, deactivate the CC according to an activation state of the PDSCH CC.
  • the processing module 13 is specifically configured to: perform one or any of the following operations: stop monitoring the PDCCH on the corresponding DL CC; terminate PDSCH reception on the corresponding DL CC; if there is a deactivated timer on the CC If the operation is performed, the timer is stopped; the uplink transmission on the UL CC that can only be scheduled by the CC is terminated; the downlink CQI feedback is terminated for the corresponding DL CC; if a certain UL CC can only be scheduled by the CC, the UL is terminated. SRS and/or PHR transmission on the CC.
  • modules of the device of the present invention may be integrated or integrated.
  • the above modules can be combined into one module, or can be further split into multiple sub-modules.
  • the state determines the search space of the PDCCH CC, and can adjust the search space in time to achieve the purpose of reducing unnecessary PDCCH blind detection times and more effective power saving.
  • modules in the apparatus in the embodiments may be distributed in the apparatus of the embodiment according to the description of the embodiments, or may be correspondingly changed in one or more apparatuses different from the embodiment.
  • the modules of the above embodiments may be combined into one module, or may be further split into a plurality of sub-modules.

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Abstract

A method and device for determining search spaces on a Physical Downlink Control Channel Component Carrier (PDCCH CC) are disclosed in the embodiments of the present invention. The method comprises the following steps: a user equipment obtains the activity state of a Physical Downlink Shared Channel Component Carrier (PDSCH CC), and according to the activity state of the PDSCH CC, determines the search spaces on the PDCCH CC. In the embodiments of the present invention, determining the search spaces on a PDCCH CC according to the activity state of a PDSCH CC, the search spaces can be adjusted in time, thus reducing unnecessary PDCCH blind decoding and saving power more effectively.

Description

一种 PDCCH CC搜索空间的确定方法和设备 本申请要求于 2010年 4 月 30 日提交中国专利局， 申请号为 201010164678.5 ,发明名称为 "一种 PDCCH CC搜索空间的确定方法 和设备"的中国专利申请的优先权， 其全部内容通过引用结合在本申 请中。 技术领域  Method and device for determining PDCCH CC search space The present application claims to be submitted to the Chinese Patent Office on April 30, 2010, and the application number is 201010164678.5, and the invention name is "a method and device for determining the PDCCH CC search space". Priority of the application, the entire contents of which are incorporated herein by reference. Technical field
本发明涉及通信技术领域， 尤其涉及一种 PDCCH CC搜索空间 的确定方法和设备。 背景技术  The present invention relates to the field of communications technologies, and in particular, to a method and a device for determining a PDCCH CC search space. Background technique
LTE ( Long Term Evolution, 长期演进）是 3G ( 3rd Generation, 第三代数字通信） 的演进， 在 LTE***以及以前的无线通信***中， UE ( User Equipment, 用户设备）只工作在一个小区上， 如图 1所示， 小区最大最大带宽为 20MHz。 随着移动终端用户数量的迅速增长， 终端用户的业务容量呈指数增长，为了满足持续增加的终端用户的业 务需求，需要提供更大的带宽来满足终端用户的业务和应用所需要的 更高峰值速率。 在 LTE- A ( LTE- Advanced , 高级 LTE )***中， *** 的峰值速率比 LTE有巨大的提高，如果只使用一个最大带宽为 20MHz 的小区， 显然无法达到峰值速率的要求。 因此， LTE-A***需要扩展 终端用户可以使用的带宽， 由此引入了 CA ( Carrier Aggregation, 载 波聚合）技术， 即将基站支持的多个小区聚合在一起， 同时为 UE服 务， 以提供 UE所需的塑料。 每个聚合的小区可以包含一对上下行成 员载波（ Component Carrier , 成员载波）， 也可以只包含一个单向的 载波。 为了保证 LTE-A***和 LTE***的兼容性， 要求聚合的每个 成员载波货款最大不超过 20MHz。 如图 2所示， 为一种 LTE- A下的 载波聚合技术示意图， 可以看出， LTE-A的基站下有 4个可以聚合的 小区， 基站可以同时在 4个小区上和 UE进行数据传输， 以提高*** 吞吐量。 LTE (Long Term Evolution) is an evolution of 3G (3rd Generation). In the LTE system and the previous wireless communication system, the UE (User Equipment) works only on one cell. As shown in Figure 1, the maximum maximum bandwidth of the cell is 20MHz. As the number of mobile terminal users grows rapidly, the service capacity of end users grows exponentially. In order to meet the increasing demand of end users, it is necessary to provide more bandwidth to meet the higher peaks required by end users' services and applications. rate. In the LTE-Advanced (LTE-Advanced) system, the peak rate of the system is greatly improved compared to LTE. If only one cell with a maximum bandwidth of 20 MHz is used, the peak rate requirement cannot be achieved. Therefore, the LTE-A system needs to expand the bandwidth that the terminal user can use, thereby introducing a CA (Carrier Aggregation) technology, which aggregates multiple cells supported by the base station and simultaneously serves the UE to provide the UE. Plastic. Each aggregated cell may include a pair of uplink and downlink component carriers (Component Carriers), or may only include one unidirectional carrier. In order to ensure compatibility between the LTE-A system and the LTE system, each of the aggregated Member carrier charges up to 20MHz. As shown in FIG. 2, which is a schematic diagram of a carrier aggregation technology in LTE-A, it can be seen that there are four cells that can be aggregated under the LTE-A base station, and the base station can perform data transmission with the UE on four cells at the same time. To increase system throughput.
在 LTE***中， 下行物理信道包括： PDSCH ( Physical Downlink Shared Channel , 物理层共享信道）、 PBCH ( Physical Broadcast Channel , 物理层广播信道）、 PMCH ( Physical Multicast Channel , 物 理层多播信道）、 PCFICH ( Physical Control Format Indicator Channel, 物理层控制信息格式指示信道）、 PDCCH ( Physical Downlink Control Channel, 物理层控制信道 ), PHICH ( Physical Hybrid ARQ Indicator Channel, 物理层 HARQ反馈指示信道）。  In the LTE system, the downlink physical channel includes: a PDSCH (Physical Downlink Shared Channel), a PBCH (Physical Broadcast Channel), a PMCH (Physical Multicast Channel), and a PCFICH ( Physical Control Format Indicator Channel, Physical Layer Control Information Format (Channel), PDCCH (Physical Layer Control Channel), PHICH (Physical Hybrid ARQ Indicator Channel).
在上述下行物理信道中， PDCCH信道主要用于传输针对上下行 的调度信令， PDSCH信道主要用于下行数据传输， 在一般情况下， 一个成员载波上既有 PDCCH信道， 也有 PDSCH信道， 两者通过时 域进行划分， 如图 3所示的 PDCCH和 PDSCH信道示意图。  In the foregoing downlink physical channel, the PDCCH channel is mainly used for transmitting scheduling signaling for uplink and downlink, and the PDSCH channel is mainly used for downlink data transmission. In general, a component carrier has both a PDCCH channel and a PDSCH channel, and both Divided by the time domain, as shown in the PDCCH and PDSCH channel diagrams shown in FIG.
在 LTE ***中， 由于只有一个小区， 则该小区对应的下行载波 上的 PDCCH只能调度本小区的 PDSCH。 对于多载波***来说， 会 存在如下情况： 一个小区上的 PDCCH被污染 （如该 PDCCH信道上 干扰严重）， 此时， 可以将其配置为跨载波调度， 即允许通过其它小 区的 DL (下行 ) CC的 PDCCH调度本小区的上下行数据传输。 需 要注意的是配置跨载波调度时， 同一时刻一个小区只能被一个 PDCCH CC调度， 该调度关系是基于小区半静态配置的。  In the LTE system, since there is only one cell, the PDCCH on the downlink carrier corresponding to the cell can only schedule the PDSCH of the local cell. For a multi-carrier system, there are cases where the PDCCH on one cell is contaminated (as the interference on the PDCCH channel is severe), at this time, it can be configured to be cross-carrier scheduling, that is, DL (downstream allowed) through other cells The PDCCH of the CC schedules uplink and downlink data transmission of the current cell. It should be noted that when configuring cross-carrier scheduling, one cell can be scheduled by one PDCCH CC at the same time. The scheduling relationship is based on semi-static configuration of the cell.
如图 4所示的 PDCCH和 PDSCH的调度关系， 对于 PDCCH被 污染或者不能使用的 DL CC, 可以称其为 PDSCH-only CC, 在图 4 中， CC2上的 PDSCH不能被 CC2上的 PDCCH调度， 但是可以由 CC1上的 PDCCH调度。 The scheduling relationship between the PDCCH and the PDSCH shown in FIG. 4 may be referred to as a PDSCH-only CC for a DL CC whose PDCCH is contaminated or cannot be used. In FIG. 4, the PDSCH on CC2 cannot be scheduled by the PDCCH on CC2. But can be PDCCH scheduling on CC1.
在多载波***中， 基站可以根据 UE请求的所有业务的最大速率 之和为 UE配置一个工作小区集合， 筒称配置 CC集合。 在给 UE配 置的 CC集合中， 多载波***会基于 UE选择一个 CC作为该 UE的 PCC ( primary component carrier, 主载波）， PCC所在的小区为 PCell ( Primary Cell, 主小区）并配置该载波集合中的其它 CC为该 UE的 SCC(secondary component carrier, 库前载波)， SCC所在的小区为 SCdl ( Secondary Cell, 辅小区）。 不同 UE的 PCC可能不同。  In a multi-carrier system, the base station can configure a working cell set for the UE according to the sum of the maximum rates of all services requested by the UE, and the device is called a CC set. In the CC set configured for the UE, the multi-carrier system selects one CC as the PCC (primary component carrier) of the UE, and the cell where the PCC is located is the PCell (Primary Cell) and configures the carrier set. The other CCs are the SCC (secondary component carrier) of the UE, and the cell where the SCC is located is the SCdl (Secondary Cell). The PCC of different UEs may be different.
另外， 在 LTE-A***中， UE的 PCC不允许激活或者去激活， PCC一直默认是激活的， 而配置 CC集合中的 SCC配置之后则默认 是去激活的， 如果需要使用这些 SCC, 需要先对 SCC进行载波激活 操作。 由于 UE的业务可能具有波动性和突发性， 即某段时间内业务 量很少， 而某段时间内业务量很大， 因此， 在 UE业务量比较少时， 为了更好的节电， 需要进一步对配置 CC集合内的 CC按照 UE当前 的业务情况进行载波激活或者去激活操作， 而对于去激活的载波， UE不需要再监听 PDCCH, 从而可以达到更好的节电效果。  In addition, in the LTE-A system, the PCC of the UE is not allowed to be activated or deactivated. The PCC is always activated by default, and the SCC configuration in the CC set is configured to be deactivated by default. If these SCCs are needed, the Carrier activation operation is performed on the SCC. Since the service of the UE may be volatility and bursty, that is, the traffic volume is small during a certain period of time, and the traffic volume is large during a certain period of time, when the UE traffic is relatively small, in order to better save power, it is required. Further, the CC in the CC set is configured to perform carrier activation or deactivation according to the current service condition of the UE, and for the deactivated carrier, the UE does not need to monitor the PDCCH again, so that a better power saving effect can be achieved.
现有技术中， 已经规定对多载波***中的载波进行激活 /去激活 操作， 可以采用显式方式和隐式方式。 显式激活 /去激活即使用载波 激活 /去激活 MAC CE ( MAC control element,媒体接入控制层控制单 元）， MAC CE使用 bitmap (比特映射）方式， 每个 bit (比特 )对应 一个 CC (由于 PCC不会被激活 /去激活， 对 PCC可以有单独对应的 bit, 也可以没有）， 如果某个 bit设置为 0, 则表示去激活对应的 CC, 如果某个 bit设置为 1 , 则表示激活相应的 CC。 隐式去激活即利用 deactivation timer (去激活定时器）， 。果 deactivation timer超时， 则 去激活对应的 CC。 需要注意的是， 载波激活 /去激活都是针对下行 SCC的， 目前上行 CC没有载波激活 /去激活操作。 In the prior art, activation/deactivation of carriers in a multi-carrier system has been specified, and an explicit mode and an implicit mode may be employed. Explicit activation/deactivation uses carrier activation/deactivation of MAC CE (MAC control element), MAC CE uses bitmap (bit mapping), and each bit (bit) corresponds to one CC (due to The PCC will not be activated/deactivated. There may be a separate bit for the PCC, or no. If a bit is set to 0, it means that the corresponding CC is deactivated. If a bit is set to 1, it means activation. Corresponding CC. Implicit deactivation uses the deactivation timer. If the deactivation timer expires, the corresponding CC is deactivated. It should be noted that carrier activation/deactivation is for the downlink. For SCC, there is currently no carrier activation/deactivation operation for the uplink CC.
在实现本发明的过程中，发明人发现现有技术中至少存在以下问 题： 在载波去激活的过程中， 目前协议中没有载波去激活时 PDCCH CC和 PDSCH CC如何进行交互的描述。 如果一个 PDSCH CC被去 激活， 而不对对应的 PDCCH CC的搜索空间进行处理， 则必然会导 致不必要的盲检， 并会造成不必要的费电。 发明内容  In the process of implementing the present invention, the inventors have found that at least the following problems exist in the prior art: In the process of carrier deactivation, there is no description of how the PDCCH CC and the PDSCH CC interact when there is no carrier deactivation in the current protocol. If a PDSCH CC is deactivated without processing the search space of the corresponding PDCCH CC, it will inevitably lead to unnecessary blind detection and unnecessary power consumption. Summary of the invention
本发明实施例提供一种 PDCCH CC搜索空间的确定方法和设备， 以在 PDSCH CC载波去激活时， 根据 PDSCH CC的激活状态确定 PDCCH CC的搜索空间。  An embodiment of the present invention provides a method and a device for determining a PDCCH CC search space, to determine a search space of a PDCCH CC according to an activation state of a PDSCH CC when a PDSCH CC carrier is deactivated.
为了达到上述目的， 本发明实施例提出一种 PDCCH CC搜索空 间的确定方法， 包括：  In order to achieve the above, the embodiment of the present invention provides a method for determining a PDCCH CC search space, including:
用户设备获取 PDSCH CC的激活状态， 并根据所述 PDSCH CC 的激活状态确定 PDCCH CC的搜索空间。  The user equipment acquires an activation state of the PDSCH CC, and determines a search space of the PDCCH CC according to the activation state of the PDSCH CC.
本发明实施例提出一种用户设备 UE, 包括：  An embodiment of the present invention provides a user equipment UE, including:
获取模块， 用于获取 PDSCH CC的激活状态；  An obtaining module, configured to acquire an activation state of the PDSCH CC;
确定模块， 用于根据所述获取模块获取的所述 PDSCH CC的激 活状态确定 PDCCH CC的搜索空间。  And a determining module, configured to determine a search space of the PDCCH CC according to the activation state of the PDSCH CC acquired by the acquiring module.
与现有技术相比， 本发明至少具有以下优点：  Compared with the prior art, the present invention has at least the following advantages:
根据 PDSCH CC的激活状态确定 PDCCH CC的搜索空间， 能够 及时对搜索空间进行调整， 以达到减少不必要的 PDCCH盲检次数并 且更有效的节电的目的。 附图说明  The search space of the PDCCH CC is determined according to the activation state of the PDSCH CC, and the search space can be adjusted in time to achieve the purpose of reducing the unnecessary number of PDCCH blind detections and more effectively saving power. DRAWINGS
图 1是现有技术 LTE***中一个小区中只有一个载波的示意图； 图 2是现有技术 LTE-A下的载波聚合技术示意图； 图 3是现有技术中 PDCCH和 PDSCH信道示意图； 1 is a schematic diagram of only one carrier in a cell in a prior art LTE system; 2 is a schematic diagram of a carrier aggregation technology in the prior art LTE-A; FIG. 3 is a schematic diagram of a PDCCH and a PDSCH channel in the prior art;
图 4是现有技术中 PDCCH和 PDSCH的调度关系示意图； 图 5是本发明实施例一提供的一种 PDCCH CC搜索空间的确定 方法流程示意图；  4 is a schematic diagram of a scheduling relationship between a PDCCH and a PDSCH in the prior art; FIG. 5 is a schematic flowchart of a method for determining a PDCCH CC search space according to Embodiment 1 of the present invention;
图 6是本发明实施例二提供的一种 PDCCH CC搜索空间的确定 方法流程示意图；  6 is a schematic flowchart of a method for determining a PDCCH CC search space according to Embodiment 2 of the present invention;
图 7是本发明实施例三提供的一种 PDCCH CC搜索空间的确定 方法流程示意图；  FIG. 7 is a schematic flowchart of a method for determining a PDCCH CC search space according to Embodiment 3 of the present invention;
图 8是本发明实施例三中 MAC CE的格式示意图；  8 is a schematic diagram of a format of a MAC CE in Embodiment 3 of the present invention;
图 9是本发明实施例四提供的一种 PDCCH CC搜索空间的确定 方法流程示意图；  9 is a schematic flowchart of a method for determining a PDCCH CC search space according to Embodiment 4 of the present invention;
图 10是本发明实施例四中 MAC CE的格式示意图；  10 is a schematic diagram of a format of a MAC CE in Embodiment 4 of the present invention;
图 11是本发明实施例五中按照小区级别 CC编号各个 bit位和 11 is a block diagram of a cell number according to a cell level in the fifth embodiment of the present invention.
CC的对应关系示意图； Schematic diagram of the correspondence relationship of CC;
图 12是本发明实施例五中按照 UE级别 CC编号各个 bit位和 CC 的对应关系示意图；  FIG. 12 is a schematic diagram of correspondence between each bit bit and CC according to UE level CC number in Embodiment 5 of the present invention; FIG.
图 13是本发明实施例五中按照频率从低到高编号各个 bit位和 13 is a fifth embodiment of the present invention for numbering bits from low to high according to frequency;
CC的对应关系示意图； Schematic diagram of the correspondence relationship of CC;
图 14是本发明实施例五中按照频率从高到低编号各个 bit位和 Figure 14 is a fifth embodiment of the present invention for numbering bits from high to low according to frequency;
CC的对应关系示意图； Schematic diagram of the correspondence relationship of CC;
图 15是本发明实施例六提供的一种用户设备结构示意图。 具体实施方式  FIG. 15 is a schematic structural diagram of a user equipment according to Embodiment 6 of the present invention. detailed description
在多载波***中， 为了提高峰值速率， UE可以工作在多个成员 载波上， 多载波***会根据 UE请求的业务的平均速率之和为 UE配 置一个工作载波集合， 而由于 UE的业务可能具有波动性和突发性， 在 UE业务量比较少时， 为了更好的节电， 可以进一步对配置给 UE 的工作载波集合中的载波按照 UE当前的业务情况进行载波去激活操 作。 而本发明实施例中则提出了一种在多载波***载波去激活时， PDCCH CC和 PDSCH CC进行交互方法， 并根据 PDSCH CC的激活 状态确定 PDCCH CC的搜索空间。 In a multi-carrier system, in order to increase the peak rate, the UE can work on multiple component carriers, and the multi-carrier system allocates the UE according to the sum of the average rates of services requested by the UE. A set of working carriers is set, and since the service of the UE may be volatility and bursty, when the traffic of the UE is relatively small, for better power saving, the carrier in the working carrier set configured for the UE may be further configured according to the current UE. The carrier case performs a carrier deactivation operation. In the embodiment of the present invention, a method for interacting between a PDCCH CC and a PDSCH CC when a carrier of a multi-carrier system is deactivated is proposed, and a search space of the PDCCH CC is determined according to an activation state of the PDSCH CC.
本发明实施例一提供一种 PDCCH CC搜索空间的确定方法， 如 图 5所示， 包括以下步骤：  A first embodiment of the present invention provides a method for determining a PDCCH CC search space. As shown in FIG. 5, the method includes the following steps:
步骤 501 , 用户设备获取 PDSCH CC的激活状态。  Step 501: The user equipment acquires an activation state of the PDSCH CC.
步骤 502,用户设备根据所述 PDSCH CC的激活状态确定 PDCCH CC的搜索空间。  Step 502: The user equipment determines a search space of the PDCCH CC according to an activation state of the PDSCH CC.
本发明实施例中， 用户设备获取 PDSCH CC的激活状态具体包 括： 用户设备接收来自网络侧设备的载波激活 /去激活 MAC CE, 并 根据 MAC CE中的指示信息获取所述 PDSCH CC的激活状态。其中， 根据 MAC CE中的指示信息获取所述 PDSCH CC的激活状态，包括： 用户设备获取 PDSCH CC对应的 bit位， 当 PDSCH CC对应的 bit位 置为去激活指示时， 用户设备获取 PDSCH CC的激活状态为去激活。  In the embodiment of the present invention, the acquiring, by the user equipment, the activation status of the PDSCH CC includes: receiving, by the user equipment, a carrier activation/deactivation MAC CE from the network side device, and acquiring an activation status of the PDSCH CC according to the indication information in the MAC CE. The acquiring, by the user equipment, the activation status of the PDSCH CC according to the indication information in the MAC CE, includes: the user equipment acquiring the bit bit corresponding to the PDSCH CC, and when the bit position corresponding to the PDSCH CC is the deactivation indication, the user equipment acquires the activation of the PDSCH CC. The status is deactivated.
另外， 根据所述 PDSCH CC的激活状态确定 PDCCH CC的搜索 空间包括： 当 PDSCH CC 的激活状态为去激活时， 用户设备根据 PDCCH CC及其调度的激活的 PDSCH CC上的传输模式对应的搜索 空间对所述 PDCCH CC上的控制信道进行盲检。  In addition, determining a search space of the PDCCH CC according to the activation state of the PDSCH CC includes: when the activation state of the PDSCH CC is deactivated, the user equipment searches for a search space corresponding to the transmission mode on the PDCCH CC and the scheduled activated PDSCH CC Performing blind detection on the control channel on the PDCCH CC.
进一步的， 用户设备根据所述 PDCCH CC 及其调度的激活的 PDSCH CC上的传输模式对应的搜索空间对所述 PDCCH CC上的控 制信道进行盲检， 包括： 当 PDCCH CC和所述 PDSCH CC的搜索空 间不独立， 对所述 PDCCH CC 上的控制信道进行盲检时， 如果在 PDCCH CC上检测到针对所述去激活的 PDSCH CC的调度信令， 用 户设备忽略针对所述 PDSCH CC的调度信令。 Further, the user equipment performs blind detection on the control channel on the PDCCH CC according to the search space corresponding to the transmission mode on the PDCCH CC and the scheduled activated PDSCH CC, including: when the PDCCH CC and the PDSCH CC If the search space is not independent, when the control channel on the PDCCH CC is blindly checked, if The scheduling signaling for the deactivated PDSCH CC is detected on the PDCCH CC, and the user equipment ignores the scheduling signaling for the PDSCH CC.
本发明实施例中， 当 MAC CE通过 bitmap方式进行传输时， bit 位和 CC的映射关系包括： 根据小区级别的 CC编号进行映射； 或基 于 UE级别的 CC编号进行映射； 或按照 CC的频点进行映射； 或采 用信令通知 CC和载波去激活 MAC CE中每个 bit位的对应关系。  In the embodiment of the present invention, when the MAC CE is transmitted in the bitmap mode, the mapping between the bit bit and the CC includes: mapping according to the CC number of the cell level; or mapping based on the CC number of the UE level; or according to the frequency of the CC Perform mapping; or signal the CC and the carrier to deactivate the correspondence of each bit in the MAC CE.
用户设备获取所述 PDSCH CC的激活状态为去激活之后还包括： 用户设备根据所述 PDSCH CC的激活状态对所述 CC进行去激活。  After the user equipment acquires the activation status of the PDSCH CC as deactivated, the method further includes: deactivating, by the user equipment, the CC according to an activation status of the PDSCH CC.
用户设备根据所述 PDSCH CC的激活状态对所述 CC进行去激 活， 具体包括以下操作中的一种或任意几种： 用户设备停止在对应的 DL CC上监听 PDCCH;用户设备终止在对应的 DL CC上进行 PDSCH 接收；如果所述 CC上有去激活 timer运行，则用户设备停止该 timer; 用户设备终止只能由所述 CC调度的 UL CC上的上行传输； 用户设 备终止针对相应 DL CC进行下行 CQI反馈；如果某个 UL CC只能由 所述 CC调度， 则用户设备终止该 UL CC上的 SRS和 /或 PHR发送。  The user equipment deactivates the CC according to the activation state of the PDSCH CC, and specifically includes one or any of the following operations: the user equipment stops monitoring the PDCCH on the corresponding DL CC; the user equipment terminates in the corresponding DL. The PDSCH is received on the CC; if there is a deactivated timer running on the CC, the user equipment stops the timer; the user equipment terminates the uplink transmission only on the UL CC scheduled by the CC; the user equipment terminates for the corresponding DL CC Downlink CQI feedback; if a certain UL CC can only be scheduled by the CC, the user equipment terminates the SRS and/or PHR transmission on the UL CC.
可见， 通过使用本发明提供的方法， 根据 PDSCH CC的激活状 态确定 PDCCH CC的搜索空间， 能够及时对搜索空间进行调整， 以 达到减少不必要的 PDCCH盲检次数并且更有效的节电的目的。  It can be seen that by using the method provided by the present invention, the search space of the PDCCH CC is determined according to the activation state of the PDSCH CC, and the search space can be adjusted in time to achieve the purpose of reducing unnecessary PDCCH blind detection times and more effective power saving.
为了更加清楚的说明本发明实施例提供的技术方案，以下对本发 明实施例提出的 PDCCH CC搜索空间的确定方法进行详细描述。 在 本发明实施例中， 网络侧设备包括但不限于 eNB ( evolved Node B , 演进型基站）、 Relay等， 需要说明的是， 该网络侧设备并不局限于上 述设备， 所有位于网络侧的设备均在本发明保护范围之内， 为了方便 描述， 本发明实施例中以基站为例进行说明。  In order to explain the technical solution provided by the embodiment of the present invention, the method for determining the PDCCH CC search space proposed in the embodiment of the present invention is described in detail below. In the embodiment of the present invention, the network side device includes, but is not limited to, an eNB (evolved Node B), a relay, and the like. It should be noted that the network side device is not limited to the foregoing device, and all devices located on the network side. All of the embodiments of the present invention are described by taking a base station as an example for convenience of description.
本发明实施例中， PDSCH CC的激活状态对 PDCCH CC的影响 具体为：如果一个 PDSCH CC被去激活，则对可以调度该 PDSCH CC 的 PDCCH进行盲检时需要考虑对搜索空间的影响。 In the embodiment of the present invention, the activation state of the PDSCH CC affects the PDCCH CC Specifically, if one PDSCH CC is deactivated, the impact on the search space needs to be considered when performing blind detection on the PDCCH that can schedule the PDSCH CC.
具体的， 当 PDSCH CC的激活状态为去激活时， 用户设备根据 PDCCH CC及其调度的激活的 PDSCH CC上的传输模式对应的搜索 空间对 PDCCH CC上的控制信道进行盲检。进一步的，当 PDCCH CC 和 PDSCH CC的搜索空间不独立， 对 PDCCH CC上的控制信道进行 盲检时， 如果在 PDCCH CC上检测到针对去激活的 PDSCH CC的调 度信令， 用户设备忽略针对 PDSCH CC的调度信令。  Specifically, when the activation state of the PDSCH CC is deactivated, the user equipment performs blind detection on the control channel on the PDCCH CC according to the search space corresponding to the transmission mode on the PDCCH CC and the scheduled activated PDSCH CC. Further, when the search space of the PDCCH CC and the PDSCH CC are not independent, and the control channel on the PDCCH CC is blindly detected, if the scheduling signaling for the deactivated PDSCH CC is detected on the PDCCH CC, the user equipment ignores the PDSCH for the PDSCH. Scheduling signaling for CC.
基于上述情况， 本发明实施例二提供的 PDCCH CC搜索空间的 确定方法中， 如图 6所示， 包括以下步骤：  Based on the foregoing, in the method for determining a PDCCH CC search space provided by the second embodiment of the present invention, as shown in FIG. 6, the method includes the following steps:
步骤 601 , 网络侧设备向 UE发送载波激活 /去激活 MAC CE。 其中， 在该载波激活 /去激活 MAC CE中， 可以包含对应 PDSCH CC的 bit位， 该 bit位被置为去激活指示或者激活指示。  Step 601: The network side device sends a carrier activation/deactivation MAC CE to the UE. Wherein, in the carrier activation/deactivation MAC CE, a bit bit corresponding to the PDSCH CC may be included, and the bit bit is set as a deactivation indication or an activation indication.
步骤 602, 用户设备根据该载波激活 /去激活 MAC CE 获取 PDSCH CC的激活状态。  Step 602: The user equipment activates/deactivates the MAC CE according to the carrier to acquire an activation state of the PDSCH CC.
具体的， 当载波激活 /去激活 MAC CE中， 该 PDSCH CC对应的 bit位被置为去激活指示时，则获取 PDSCH CC的激活状态为去激活； 该 PDSCH CC对应的 bit位被置为激活指示时， 则获取 PDSCH CC 的激活状态为激活。 例如， 当 bit位置为 0时表示去激活指示， bit位 置为 1时表示激活指示时， 则用户设备获知到该 bit位为 0时， 获取 PDSCH CC的激活状态为去激活； 用户设备获知到该 bit位为 1时， 获取 PDSCH CC的激活状态为激活。  Specifically, when the bit corresponding to the PDSCH CC is set to be deactivated, the active state of the PDSCH CC is deactivated; the bit corresponding to the PDSCH CC is activated. When indicated, the activation status of the PDSCH CC is acquired as active. For example, when the bit position is 0, the deactivation indication is indicated, and when the bit position is 1, the activation indication is displayed, when the user equipment knows that the bit is 0, the activation state of the PDSCH CC is deactivated; the user equipment knows that When the bit is 1, the activation status of the PDSCH CC is activated.
当然， 在实际应用中， 该载波激活 /去激活 MAC CE中也可以不 携带 PDSCH CC对应的 bit位， 此时， 用户设备还可以通过其他的方 式获取 PDSCH CC的激活状态， 本发明实施例中不再详加赘述。 步骤 603, 当 PDSCH CC的激活状态为去激活时， 用户设备根据 PDSCH CC的激活状态确定 PDCCH CC的搜索空间。 即该用户设备 根据 PDCCH CC的搜索空间对调度 PDSCH CC的 PDCCH进行盲检。 Of course, in the actual application, the carrier activation/deactivation MAC CE may not carry the bit bit corresponding to the PDSCH CC. In this case, the user equipment may obtain the activation state of the PDSCH CC in other manners. I will not repeat them in detail. Step 603: When the activation state of the PDSCH CC is deactivated, the user equipment determines the search space of the PDCCH CC according to the activation state of the PDSCH CC. That is, the user equipment performs blind detection on the PDCCH scheduling the PDSCH CC according to the search space of the PDCCH CC.
具体的， 当 PDSCH CC的激活状态为去激活时， 用户设备根据 PDCCH CC及其调度的激活的 PDSCH CC上的传输模式对应的搜索 空间对 PDCCH CC上的控制信道进行盲检。进一步的，当 PDCCH CC 和 PDSCH CC的搜索空间不独立， 对 PDCCH CC上的控制信道进行 盲检时， 如果在 PDCCH CC上检测到针对去激活的 PDSCH CC的调 度信令， 用户设备忽略针对 PDSCH CC的调度信令。  Specifically, when the activation state of the PDSCH CC is deactivated, the user equipment performs blind detection on the control channel on the PDCCH CC according to the search space corresponding to the transmission mode on the PDCCH CC and the scheduled activated PDSCH CC. Further, when the search space of the PDCCH CC and the PDSCH CC are not independent, and the control channel on the PDCCH CC is blindly detected, if the scheduling signaling for the deactivated PDSCH CC is detected on the PDCCH CC, the user equipment ignores the PDSCH for the PDSCH. Scheduling signaling for CC.
需要说明的是， 当 PDSCH CC的激活状态为去激活时， 该用户 设备还需要对该 CC执行去激活操作， 其中， CC被去激活后的操作 至少包含以下操作中的一种或者任意几种： 停止监听该 DL CC上的 PDCCH; 如果该 CC上有去激活 timer运行， 则停止该 timer; 停止该 DL CC上的 PDSCH传输（包括初传和 /或重传）； 忽略该 DL CC上之 前的 UL调度（包括初传和 /或重传）；停止在 UL CC上发馈该 DL CC 对应的 CQI ( Channel Quality Indicator, 信道质量指示）信息； 如果 某个 UL CC只能由该 DL CC调度， 则对应的 UL CC上停止 SRS ( Sounding Reference Signal , 监测参考信号) 和 /或 PHR ( Power headroom, 功率余量 )发送。  It should be noted that, when the activation state of the PDSCH CC is deactivated, the user equipment needs to perform a deactivation operation on the CC, where the operation after the CC is deactivated includes at least one or any of the following operations. : Stop listening to the PDCCH on the DL CC; if there is a deactivated timer running on the CC, stop the timer; stop the PDSCH transmission on the DL CC (including initial transmission and/or retransmission); ignore the DL CC before UL scheduling (including initial transmission and/or retransmission); stopping transmitting CQI (Channel Quality Indicator) information corresponding to the DL CC on the UL CC; if a certain UL CC can only be scheduled by the DL CC Then, the SRS (Sounding Reference Signal) and/or PHR (Power headroom) transmission are stopped on the corresponding UL CC.
另外， 在载波激活 /去激活 MAC CE中还可以采用 bitmap方式， 而在采用 bitmap方式时， bit和 CC的映射关系可以至少采用以下几 种方式中的任意一种。  In addition, the bitmap mode can be used in the carrier activation/deactivation MAC CE. In the bitmap mode, the mapping between the bit and the CC can be at least one of the following ways.
( 1 )根据小区级别的 CC编号进行映射， 即对小区内支持的所 有 CC进行统一编号，载波激活 /去激活 MAC CE的每个 bit对应一个 cc。 ( 2 )基于 UE级别的 CC编号进行映射， 即对 UE可以聚合或者 已经聚合的 CC统一编号，载波激活 /去激活 MAC CE的每个 bit对应 一个 CC。 (1) Mapping according to the CC number of the cell level, that is, uniformly all the CCs supported in the cell, and each bit of the carrier activation/deactivation MAC CE corresponds to one cc. (2) Mapping based on the CC number of the UE level, that is, the CC number that the UE can aggregate or has been aggregated, and each bit of the carrier activation/deactivation MAC CE corresponds to one CC.
( 3 )按照 CC的频点进行映射， 即按照 CC频点从低到高或者从 高到低的顺序， 载波激活 /去激活 MAC CE的每个 bit对应一个 CC。  (3) Mapping according to the frequency of the CC, that is, according to the order of CC frequency from low to high or high to low, each bit of the carrier activation/deactivation MAC CE corresponds to one CC.
( 4 )采用信令通知 CC和载波激活 /去激活 MAC CE中每个 bit 的对应关系。  (4) Signaling the CC and the carrier to activate/deactivate the correspondence of each bit in the MAC CE.
需要注意的是， 对与 PCC来说， 由于 PCC不会被激活 /去激活， 可以有独立的 bit与该 PCC对应，也可以没有独立的 bit与该 PCC对 应。  It should be noted that, for the PCC, since the PCC will not be activated/deactivated, there may be a separate bit corresponding to the PCC, or there may be no independent bit corresponding to the PCC.
为了进一步阐述本发明实施例提供的技术方案，以下结合具体的 应用场景对本发明实施例提出的 PDCCH CC搜索空间的确定方法进 行详细描述。 本应用场景下， 假设多载波***支持三个 DL CC, 记为 CC1、 CC2、 CC3 , 其中 CC1 和 CC3 均为 PDCCH CC, CC2 为 PDSCH-only CC,该 CC2的 PDCCH由于干 4尤不能使用， CC1配置了 跨载波调度功能， CC3没有配置跨载波调度功能。 另夕卜， 假设采用的 载波激活 /去激活 MAC CE有三个预留 bit, 最低的 5个 bit从低位到 高位分别按顺序对应 5个 DL CC; 激活 /去激活 MAC CE中 "0" 表 示去激活， "1" 表示激活。  To further describe the technical solution provided by the embodiment of the present invention, the method for determining the PDCCH CC search space proposed by the embodiment of the present invention is described in detail below with reference to a specific application scenario. In this application scenario, it is assumed that the multi-carrier system supports three DL CCs, which are recorded as CC1, CC2, and CC3. CC1 and CC3 are both PDCCH CCs and CC2 is PDSCH-only CCs. CC1 is configured with cross-carrier scheduling. CC3 does not have cross-carrier scheduling. In addition, it is assumed that the carrier activation/deactivation MAC CE has three reserved bits, and the lowest 5 bits correspond to 5 DL CCs in order from lower to upper respectively; "0" is activated/deactivated in MAC CE Activated, "1" indicates activation.
基于上述应用场景， 本发明实施例三提供一种 PDCCH CC搜索 空间的确定方法， 本实施例中， 假设 CC1和 CC2的搜索空间独立， 如图 7所示， 该方法包括以下步骤：  Based on the foregoing application scenario, the third embodiment of the present invention provides a method for determining a PDCCH CC search space. In this embodiment, it is assumed that the search spaces of CC1 and CC2 are independent. As shown in FIG. 7, the method includes the following steps:
步骤 701 , 在 T1时刻， UE在 DL CC1、 CC2、 CC3上均正常进 行数据传输。  Step 701: At time T1, the UE performs normal data transmission on DL CC1, CC2, and CC3.
步骤 702, 在 T2时刻， CC1信道质量恶化或者 UE数据量减少， 网络侧决定去激活 CC2, 基站向 UE发送载波激活 /去激活 MAC CE。 其中， 该载波激活 /去激活 MAC CE的格式如图 8所示， 最低位代表 CC1 , 倒数第二位代表 CC2, 倒数第三位代表 CC3。 Step 702: At time T2, the CC1 channel quality is deteriorated or the UE data volume is decreased. The network side decides to deactivate CC2, and the base station sends a carrier activation/deactivation MAC CE to the UE. The format of the carrier activation/deactivation MAC CE is as shown in FIG. 8. The lowest bit represents CC1, the second last bit represents CC2, and the third last bit represents CC3.
步骤 703, UE接收到该载波激活 /去激活 MAC CE后， 判断应该 去激活 CC2。  Step 703: After receiving the carrier activation/deactivation MAC CE, the UE determines that CC2 should be deactivated.
步骤 704, UE在对 CC1上 PDCCH进行盲检时， 不需要在 CC2 传输模式对应的搜索空间内进行盲检。  Step 704: When the UE performs blind detection on the PDCCH on the CC1, the UE does not need to perform blind detection in the search space corresponding to the CC2 transmission mode.
具体的，尽管 CC1配置了跨载波调度，但是由于 CC2被去激活， 则后续在对 CC1上的 PDCCH进行盲检的过程中， 不需要在 CC2传 输模式对应的搜索空间内进行盲检。  Specifically, although CC1 is configured with cross-carrier scheduling, since CC2 is deactivated, in the process of blindly detecting the PDCCH on CC1, it is not necessary to perform blind detection in the search space corresponding to the CC2 transmission mode.
本发明实施例四提供一种 PDCCH CC搜索空间的确定方法， 本 实施例中， 假设 CC1和 CC2的搜索空间不独立， 如图 9所示， 该方 法包括以下步骤：  The fourth embodiment of the present invention provides a method for determining a PDCCH CC search space. In this embodiment, it is assumed that the search spaces of CC1 and CC2 are not independent. As shown in FIG. 9, the method includes the following steps:
步骤 901 , 在 T1时刻， UE在 DL CC1、 CC2、 CC3上均正常进 行数据传输。  Step 901: At time T1, the UE performs normal data transmission on DL CC1, CC2, and CC3.
步骤 902, 在 T2时刻， CC1信道质量恶化或者 UE数据量减少， 网络侧决定去激活 CC2, 则基站可以向 UE发送载波激活 /去激活 MAC CE, 该 MAC CE的格式如图 10所示， 最低位代表 CC1 , 倒数 第二位代表 CC2, 倒数第三位代表 CC3。  Step 902: At time T2, the CC1 channel quality deteriorates or the UE data volume decreases, and the network side decides to deactivate CC2, the base station may send a carrier activation/deactivation MAC CE to the UE, and the format of the MAC CE is as shown in FIG. The bit represents CC1, the second last bit represents CC2, and the third last bit represents CC3.
步骤 903, UE接收到该载波激活 /去激活 MAC CE后， 判断应该 去激活 CC2。  Step 903: After receiving the carrier activation/deactivation MAC CE, the UE determines that CC2 should be deactivated.
步骤 904, UE在对 CC1上 PDCCH进行盲检时， 不需要在 CC2 独立对应的搜索空间进行盲检， 当有交叠部分时， 如果检测到针对 CC2的调度， 则忽略该调度。  Step 904: When performing blind detection on the PDCCH on CC1, the UE does not need to perform blind detection in the search space independently corresponding to CC2. When there is an overlapping part, if the scheduling for CC2 is detected, the scheduling is ignored.
具体的， 尽管在 CC1上配置了跨载波调度， 但是由于 CC2被去 激活， 在后续对 CC1上 PDCCH进行盲检时， 不需要在 CC2独立对 应的搜索空间进行盲检，如果有交叠部分， 那么如果检测到针对 CC2 的调度， 则忽略该调度， 不进行任何处理。 Specifically, although cross-carrier scheduling is configured on CC1, CC2 is removed. If the PDCCH is blindly detected on the CC1, it is not necessary to perform blind detection in the search space independently corresponding to CC2. If there is an overlapping part, if the scheduling for CC2 is detected, the scheduling is ignored and no processing is performed. .
本发明实施例五提供一种 PDCCH CC搜索空间的确定方法， 本 实施例中， MAC CE采用 bitmap的方式进行传输， 假设 UE聚合 5 个 CC, 分别记为 CC1/CC2/CC3/CC4/CC5。  The fifth embodiment of the present invention provides a method for determining a PDCCH CC search space. In this embodiment, the MAC CE is transmitted in a bitmap manner. It is assumed that the UE aggregates five CCs, which are respectively recorded as CC1/CC2/CC3/CC4/CC5.
按照小区级别 CC编号， 这五个 CC分别对应的是 1、 3、 2、 4、 5; 按照 UE级别 CC编号， 这五个 CC分别对应 1、 3、 5、 4、 2; 按 照频点从低到高分别是 CC1/CC3/CC2/CC4/CC5。  According to the cell level CC number, the five CCs correspond to 1, 3, 2, 4, and 5 respectively; according to the UE level CC number, the five CCs correspond to 1, 3, 5, 4, 2 respectively; The low to high are CC1/CC3/CC2/CC4/CC5.
基于上述情况， 载波激活 /去激活 MAC CE的 bitmap格式包括： ( 1 )按照小区级别 CC编号， 则载波激活 /去激活 MAC CE各个 bit 位和 CC的对应关系如图 11所示； （ 2 )按照 UE级别 CC编号， 则载 波激活 /去激活 MAC CE各个 bit位和 CC的对应关系如图 12所示； ( 3 )按照频率从低到高编号， 则载波激活 /去激活 MAC CE各个 bit 位和 CC的对应关系如图 13所示； （4 )按照频率从高到低编号， 贝 ij 载波激活 /去激活 MAC CE各个 bit位和 CC的对应关系如图 14所示。  Based on the above situation, the carrier format of the carrier activation/deactivation MAC CE includes: (1) According to the cell level CC number, the correspondence between each bit of the carrier activation/deactivation MAC CE and the CC is as shown in FIG. 11; (2) According to the UE level CC number, the corresponding relationship between each bit of the carrier activation/deactivation MAC CE and the CC is as shown in FIG. 12; (3) The carrier activates/deactivates each bit of the MAC CE according to the frequency from low to high. The corresponding relationship with CC is shown in Fig. 13; (4) According to the frequency from high to low, the correspondence between each bit of the Bay ij carrier activation/deactivation MAC CE and CC is as shown in Fig. 14.
基于同样的发明构思， 本发明实施例六提供的一种用户设备， 如 图 15所示， 包括：  Based on the same inventive concept, a user equipment provided in Embodiment 6 of the present invention, as shown in FIG. 15, includes:
获取模块 11 , 用于获取 PDSCH CC的激活状态；  The obtaining module 11 is configured to acquire an activation state of the PDSCH CC.
确定模块 12, 用于根据所述获取模块 11获取的所述 PDSCH CC 的激活状态确定 PDCCH CC的搜索空间。  The determining module 12 is configured to determine a search space of the PDCCH CC according to the activation state of the PDSCH CC acquired by the acquiring module 11.
所述获取模块 11具体用于， 接收来自网络侧设备的载波激活 /去 激活 MAC CE, 并根据 MAC CE中的指示信息获取所述 PDSCH CC 的激活状态。  The acquiring module 11 is specifically configured to: receive a carrier activation/deactivation MAC CE from the network side device, and acquire an activation state of the PDSCH CC according to the indication information in the MAC CE.
所述获取模块 11进一步用于， 获取所述 PDSCH CC对应的 bit 位， 当所述 PDSCH CC对应的 bit位置为去激活指示时， 则获取所述 PDSCH CC的激活状态为去激活。 The acquiring module 11 is further configured to acquire a bit corresponding to the PDSCH CC. Bit, when the bit position corresponding to the PDSCH CC is a deactivation indication, acquiring an activation state of the PDSCH CC as deactivation.
所述确定模块 12具体用于， 当所述 PDSCH CC的激活状态为去 激活时， 则根据所述 PDCCH CC及其调度的激活的 PDSCH CC上的 传输模式对应的搜索空间对所述 PDCCH CC上的控制信道进行盲检。  The determining module 12 is specifically configured to: when the activation state of the PDSCH CC is deactivated, according to a search space corresponding to a transmission mode on the PDCCH CC and the scheduled activated PDSCH CC, on the PDCCH CC The control channel is blinded.
所述确定模块 12进一步用于，当所述 PDCCH CC和所述 PDSCH CC的搜索空间不独立，对所述 PDCCH CC上的控制信道进行盲检时， 如果在 PDCCH CC上检测到针对所述去激活的 PDSCH CC的调度信 令， 则忽略针对所述 PDSCH CC的调度信令。  The determining module 12 is further configured to: when the PDCCH CC and the search space of the PDSCH CC are not independent, perform blind detection on the control channel on the PDCCH CC, if it is detected on the PDCCH CC The scheduling signaling of the activated PDSCH CC ignores the scheduling signaling for the PDSCH CC.
当 MAC CE通过 bitmap方式进行传输时， bit位和 CC的映射关 系包括： 根据小区级别的 CC编号进行映射； 或者， 基于 UE级别的 CC编号进行映射； 或者， 按照 CC的频点进行映射； 或者， 采用信 令通知 CC和载波去激活 MAC CE中每个 bit位的对应关系。  When the MAC CE is transmitted in the bitmap mode, the mapping between the bit bit and the CC includes: mapping according to the CC number of the cell level; or mapping based on the CC number of the UE level; or mapping according to the frequency of the CC; or The signaling CC and the carrier are used to deactivate the correspondence between each bit in the MAC CE.
本发明实施例中， 该用户设备还包括： 处理模块 13, 用于当所 述 PDSCH CC的激活状态为去激活时， 根据所述 PDSCH CC的激活 状态对所述 CC进行去激活。  In the embodiment of the present invention, the user equipment further includes: a processing module 13, configured to: when the activation state of the PDSCH CC is deactivated, deactivate the CC according to an activation state of the PDSCH CC.
所述处理模块 13具体用于执行以下操作中的一种或任意几种： 停止在对应的 DL CC上监听 PDCCH; 终止在对应的 DL CC上进行 PDSCH接收； 如果所述 CC上有去激活 timer运行， 则停止该 timer; 终止只能由所述 CC调度的 UL CC上的上行传输； 终止针对相应 DL CC进行下行 CQI反馈； 如果某个 UL CC只能由所述 CC调度， 则终 止该 UL CC上的 SRS和 /或 PHR发送。  The processing module 13 is specifically configured to: perform one or any of the following operations: stop monitoring the PDCCH on the corresponding DL CC; terminate PDSCH reception on the corresponding DL CC; if there is a deactivated timer on the CC If the operation is performed, the timer is stopped; the uplink transmission on the UL CC that can only be scheduled by the CC is terminated; the downlink CQI feedback is terminated for the corresponding DL CC; if a certain UL CC can only be scheduled by the CC, the UL is terminated. SRS and/or PHR transmission on the CC.
其中，本发明装置的各个模块可以集成于一体，也可以分离部署。 上述模块可以合并为一个模块， 也可以进一步拆分成多个子模块。  Wherein, the modules of the device of the present invention may be integrated or integrated. The above modules can be combined into one module, or can be further split into multiple sub-modules.
可见， 通过使用本发明提供的设备， 根据 PDSCH CC的激活状 态确定 PDCCH CC的搜索空间， 能够及时对搜索空间进行调整， 以 达到减少不必要的 PDCCH盲检次数并且更有效的节电的目的。 It can be seen that by using the device provided by the present invention, according to the activation of the PDSCH CC The state determines the search space of the PDCCH CC, and can adjust the search space in time to achieve the purpose of reducing unnecessary PDCCH blind detection times and more effective power saving.
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解 到本发明可借助软件加必需的通用硬件平台的方式来实现， 当然也可 以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解， 软件产品的形式体现出来， 该计算机软件产品存储在一个存储介质 中， 包括若干指令用以使得一台计算机设备（可以是个人计算机， 服 务器， 或者网络设备等）执行本发明各个实施例所述的方法。  Through the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be implemented by means of software plus a necessary general hardware platform, and of course, can also be through hardware, but in many cases, the former is a better implementation. the way. Based on this understanding, a form of software product is embodied, the computer software product being stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform the present invention. The method described in the examples.
本领域技术人员可以理解附图只是一个优选实施例的示意图，附 图中的模块或流程并不一定是实施本发明所必须的。  A person skilled in the art can understand that the drawings are only a schematic diagram of a preferred embodiment, and the modules or processes in the drawings are not necessarily required to implement the invention.
本领域技术人员可以理解实施例中的装置中的模块可以按照实 施例描述进行分布于实施例的装置中，也可以进行相应变化位于不同 于本实施例的一个或多个装置中。上述实施例的模块可以合并为一个 模块， 也可以进一步拆分成多个子模块。  Those skilled in the art can understand that the modules in the apparatus in the embodiments may be distributed in the apparatus of the embodiment according to the description of the embodiments, or may be correspondingly changed in one or more apparatuses different from the embodiment. The modules of the above embodiments may be combined into one module, or may be further split into a plurality of sub-modules.
上述本发明实施例序号仅仅为了描述， 不代表实施例的优劣。 以上公开的仅为本发明的几个具体实施例， 但是， 本发明并非局 限于此，任何本领域的技术人员能思之的变化都应落入本发明的保护 范围。  The serial numbers of the embodiments of the present invention are merely for the description, and do not represent the advantages and disadvantages of the embodiments. The above disclosure is only a few specific embodiments of the present invention, but the present invention is not limited thereto, and any changes that can be made by those skilled in the art should fall within the protection scope of the present invention.

Claims

权利要求 Rights request
1、 一种 PDCCH CC搜索空间的确定方法， 其特征在于， 包括： 用户设备获取 PDSCH CC的激活状态， 并根据所述 PDSCH CC 的激活状态确定 PDCCH CC的搜索空间。  A method for determining a PDCCH CC search space, comprising: acquiring, by a user equipment, an activation state of a PDSCH CC, and determining a search space of the PDCCH CC according to an activation state of the PDSCH CC.
2、 如权利要求 1所述的方法， 其特征在于， 所述用户设备获取 PDSCH CC的激活状态， 包括：  2. The method according to claim 1, wherein the acquiring, by the user equipment, an activation status of the PDSCH CC includes:
所述用户设备接收来自网络侧设备的载波激活 /去激活 MAC CE,并根据 MAC CE中的指示信息获取所述 PDSCH CC的激活状态。  The user equipment receives the carrier activation/deactivation MAC CE from the network side device, and acquires an activation status of the PDSCH CC according to the indication information in the MAC CE.
3、 如权利要求 2所述的方法， 其特征在于， 根据 MAC CE中的 指示信息获取所述 PDSCH CC的激活状态， 包括：  The method of claim 2, wherein the acquiring the activation status of the PDSCH CC according to the indication information in the MAC CE includes:
所述用户设备获取所述 PDSCH CC对应的 bit位，当所述 PDSCH CC对应的 bit位置为去激活指示时， 所述用户设备获取所述 PDSCH CC的激活状态为去激活。  The user equipment acquires a bit bit corresponding to the PDSCH CC, and when the bit position corresponding to the PDSCH CC is a deactivation indication, the user equipment acquires an activation state of the PDSCH CC as deactivation.
4、 如权利要求 1-3任一项所述的方法， 其特征在于， 根据所述 PDSCH CC的激活状态确定 PDCCH CC的搜索空间， 包括：  The method according to any one of claims 1-3, wherein determining a search space of the PDCCH CC according to an activation state of the PDSCH CC includes:
当所述 PDSCH CC的激活状态为去激活时， 所述用户设备根据 所述 PDCCH CC及其调度的激活的 PDSCH CC上的传输模式对应的 搜索空间对所述 PDCCH CC上的控制信道进行盲检。  When the activation state of the PDSCH CC is deactivated, the user equipment performs blind detection on the control channel on the PDCCH CC according to a search space corresponding to the transmission mode on the PDCCH CC and the scheduled activated PDSCH CC. .
5、 如权利要求 4所述的方法， 其特征在于， 所述用户设备根据 所述 PDCCH CC及其调度的激活的 PDSCH CC上的传输模式对应的 搜索空间对所述 PDCCH CC上的控制信道进行盲检， 包括：  The method according to claim 4, wherein the user equipment performs a control channel on the PDCCH CC according to a search space corresponding to a transmission mode on the PDCCH CC and the scheduled activated PDSCH CC. Blind inspection, including:
当所述 PDCCH CC和所述 PDSCH CC的搜索空间不独立， 对所 述 PDCCH CC上的控制信道进行盲检时， 如果在 PDCCH CC上检测 到针对所述去激活的 PDSCH CC的调度信令， 所述用户设备忽略针 对所述 PDSCH CC的调度信令。 When the search space of the PDCCH CC and the PDSCH CC is not independent, When the control channel on the PDCCH CC performs blind detection, if the scheduling signaling for the deactivated PDSCH CC is detected on the PDCCH CC, the user equipment ignores the scheduling signaling for the PDSCH CC.
6、 如权利要求 3所述的方法， 其特征在于， 当 MAC CE通过 bitmap方式进行传输时， bit位和 CC的映射关系包括：  The method according to claim 3, wherein when the MAC CE transmits in a bitmap manner, the mapping relationship between the bit bit and the CC includes:
根据小区级别的 CC编号进行映射； 或者，  Mapping according to the CC number of the cell level; or,
基于 UE级别的 CC编号进行映射； 或者，  Mapping based on the CC number of the UE level; or,
按照 CC的频点进行映射； 或者，  Map according to the frequency of the CC; or,
采用信令通知 CC和载波去激活 MAC CE中每个 bit位的对应关 系。  The CC and the carrier are signaled to deactivate the correspondence of each bit in the MAC CE.
7、 如权利要求 3所述的方法， 其特征在于， 所述用户设备获取 所述 PDSCH CC的激活状态为去激活， 之后还包括：  The method of claim 3, wherein the user equipment acquires an activation state of the PDSCH CC as deactivated, and further includes:
所述用户设备根据所述 PDSCH CC的激活状态对所述 CC进行去 激活。  The user equipment deactivates the CC according to an activation state of the PDSCH CC.
8、 如权利要求 7所述的方法， 其特征在于， 所述用户设备根据 所述 PDSCH CC的激活状态对所述 CC进行去激活，具体包括以下操 作中的一种或任意几种：  The method according to claim 7, wherein the user equipment deactivates the CC according to an activation state of the PDSCH CC, and specifically includes one or any of the following operations:
所述用户设备停止在对应的 DL CC上监听 PDCCH;  The user equipment stops listening to the PDCCH on the corresponding DL CC;
所述用户设备终止在对应的 DL CC上进行 PDSCH接收； 如果所述 CC 上有去激活 timer运行， 则所述用户设备停止该 timer;  The user equipment terminates the PDSCH reception on the corresponding DL CC; if the deactivated timer runs on the CC, the user equipment stops the timer;
所述用户设备终止只能由所述 CC调度的 UL CC上的上行传输； 所述用户设备终止针对相应 DL CC进行下行 CQI反馈； 如果某个 UL CC只能由所述 CC调度， 则所述用户设备终止该 UL CC上的 SRS和 /或 PHR发送。 The user equipment terminates uplink transmission on the UL CC that can only be scheduled by the CC; The user equipment terminates downlink CQI feedback for the corresponding DL CC; if a certain UL CC can only be scheduled by the CC, the user equipment terminates SRS and/or PHR transmission on the UL CC.
9、 一种用户设备 UE, 其特征在于， 包括：  A user equipment (UE), comprising:
获取模块， 用于获取 PDSCH CC的激活状态；  An obtaining module, configured to acquire an activation state of the PDSCH CC;
确定模块， 用于根据所述获取模块获取的所述 PDSCH CC的激 活状态确定 PDCCH CC的搜索空间。  And a determining module, configured to determine a search space of the PDCCH CC according to the activation state of the PDSCH CC acquired by the acquiring module.
10、 如权利要求 9所述的 UE, 其特征在于，  10. The UE of claim 9, wherein:
所述获取模块具体用于， 接收来自网络侧设备的载波激活 /去激 活 MAC CE, 并根据 MAC CE中的指示信息获取所述 PDSCH CC的 激活状态。  The acquiring module is specifically configured to: receive a carrier activation/deactivation MAC CE from the network side device, and acquire an activation state of the PDSCH CC according to the indication information in the MAC CE.
11、 如权利要求 10所述的 UE, 其特征在于，  11. The UE of claim 10, wherein:
所述获取模块进一步用于， 获取所述 PDSCH CC对应的 bit位， 当所述 PDSCH CC 对应的 bit位置为去激活指示时， 则获取所述 PDSCH CC的激活状态为去激活。  The acquiring module is further configured to: acquire a bit bit corresponding to the PDSCH CC, and when the bit position corresponding to the PDSCH CC is a deactivation indication, obtain an activation state of the PDSCH CC as deactivated.
12、 如权利要求 9-11任一项所述的 UE, 其特征在于， 所述确定模块具体用于， 当所述 PDSCH CC的激活状态为去激 活时， 则根据所述 PDCCH CC及其调度的激活的 PDSCH CC上的传 输模式对应的搜索空间对所述 PDCCH CC上的控制信道进行盲检。  The UE according to any one of claims 9 to 11, wherein the determining module is specifically configured to: when the activation state of the PDSCH CC is deactivated, according to the PDCCH CC and its scheduling The search space corresponding to the transmission mode on the activated PDSCH CC performs blind detection on the control channel on the PDCCH CC.
13、 如权利要求 12所述的 UE, 其特征在于，  13. The UE of claim 12, wherein:
所述确定模块进一步用于，当所述 PDCCH CC和所述 PDSCH CC 的搜索空间不独立， 对所述 PDCCH CC上的控制信道进行盲检时， 如果在 PDCCH CC上检测到针对所述去激活的 PDSCH CC的调度信 令， 则忽略针对所述 PDSCH CC的调度信令。 The determining module is further configured to: when the search space of the PDCCH CC and the PDSCH CC are not independent, perform blind detection on a control channel on the PDCCH CC, If scheduling signaling for the deactivated PDSCH CC is detected on the PDCCH CC, scheduling signaling for the PDSCH CC is ignored.
14、 如权利要求 11所述的 UE, 其特征在于， 当 MAC CE通过 bitmap方式进行传输时， bit位和 CC的映射关系包括：  The UE according to claim 11, wherein when the MAC CE transmits in the bitmap mode, the mapping relationship between the bit bit and the CC includes:
根据小区级别的 CC编号进行映射； 或者，  Mapping according to the CC number of the cell level; or,
基于 UE级别的 CC编号进行映射； 或者，  Mapping based on the CC number of the UE level; or,
按照 CC的频点进行映射； 或者，  Map according to the frequency of the CC; or,
采用信令通知 CC和载波去激活 MAC CE中每个 bit位的对应关 系。  The CC and the carrier are signaled to deactivate the correspondence of each bit in the MAC CE.
15、 如权利要求 11所述的 UE, 其特征在于， 还包括： 处理模块， 用于当所述 PDSCH CC的激活状态为去激活时， 根 据所述 PDSCH CC的激活状态对所述 CC进行去激活。  The UE according to claim 11, further comprising: a processing module, configured to: when the activation state of the PDSCH CC is deactivated, perform the CC according to an activation state of the PDSCH CC activation.
16、 如权利要求 15所述的 UE, 其特征在于，  16. The UE of claim 15 wherein:
所述处理模块具体用于执行以下操作中的一种或任意几种： 停止在对应的 DL CC上监听 PDCCH;  The processing module is specifically configured to perform one or any of the following operations: Stop listening to the PDCCH on the corresponding DL CC;
终止在对应的 DL CC上进行 PDSCH接收；  Terminating PDSCH reception on the corresponding DL CC;
如果所述 CC上有去激活 timer运行， 则停止该 timer;  If there is a deactivation timer running on the CC, the timer is stopped;
终止只能由所述 CC调度的 UL CC上的上行传输；  Terminating the uplink transmission on the UL CC that can only be scheduled by the CC;
终止针对相应 DL CC进行下行 CQI反馈；  Terminate downlink CQI feedback for the corresponding DL CC;
如果某个 UL CC只能由所述 CC调度，则终止该 UL CC上的 SRS 和 /或 PHR发送。  If a UL CC can only be scheduled by the CC, the SRS and/or PHR transmission on the UL CC is terminated.
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