WO2017173594A1 - 一种信息处理方法及装置 - Google Patents

一种信息处理方法及装置 Download PDF

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Publication number
WO2017173594A1
WO2017173594A1 PCT/CN2016/078524 CN2016078524W WO2017173594A1 WO 2017173594 A1 WO2017173594 A1 WO 2017173594A1 CN 2016078524 W CN2016078524 W CN 2016078524W WO 2017173594 A1 WO2017173594 A1 WO 2017173594A1
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WIPO (PCT)
Prior art keywords
format
pcc
scc
base station
pucch
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PCT/CN2016/078524
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English (en)
French (fr)
Inventor
陈益亮
刘少飞
陈根杰
刘巍
陈浩
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP16897529.0A priority Critical patent/EP3429154B1/en
Priority to CN201680083858.6A priority patent/CN108781205B/zh
Priority to PCT/CN2016/078524 priority patent/WO2017173594A1/zh
Publication of WO2017173594A1 publication Critical patent/WO2017173594A1/zh
Priority to US16/149,527 priority patent/US10827382B2/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
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/04—Error control
    • 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
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • 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
    • H04L5/0057—Physical resource allocation for CQI
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1273—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of downlink data flows

Definitions

  • the present invention relates to the field of mobile communications technologies, and in particular, to an information processing method and apparatus.
  • CA Carrier Aggregation
  • the aggregated CC includes a primary component carrier (PCC) and at least one secondary component carrier (SCC).
  • the cell corresponding to the PCC is a primary cell (PCell), which is a cell initially accessed by the terminal, and is responsible for radio resource control (RRC) communication with the terminal; the cell corresponding to the SCC is a secondary cell (SCell). It can be added during RRC reconfiguration to provide additional radio resources.
  • the base station side can perform physical downlink shared channel (PDSCH) on the PCC and the SCC, and the terminal transmits the feedback on the PDSCH through the physical uplink control channel (PUCCH) of the PCell. Feedback is demodulated.
  • PDSCH physical downlink shared channel
  • the embodiment of the invention provides an information processing method and device to improve the downlink throughput rate of the CA terminal.
  • the first aspect provides an information processing method for use in a multi-carrier communication system
  • the terminal is configured with a PCC and at least one SCC, and the method includes:
  • the first base station transmits downlink data to the terminal by using a PDSCH on the PCC, where the first base station is a base station where the PCC is located;
  • the first base station demodulates the PUCCH on the PCC by using the first format and the second format to obtain feedback information sent by the terminal, where the first format is a PUCCH format for a single serving cell, and the second The format is a PUCCH format for a multi-serving cell.
  • the second aspect provides an information processing apparatus for a multi-carrier communication system, in which the terminal is configured with a PCC and at least one SCC, and the apparatus includes:
  • a first scheduling module configured to transmit downlink data to the terminal by using a PDSCH on the PCC;
  • a demodulation module configured to demodulate a PUCCH on the PCC by using a first format and a second format to obtain feedback information sent by the terminal, where the first format is a PUCCH format for a single serving cell, The second format is a PUCCH format for a multi-serving cell.
  • the third aspect provides an information processing apparatus for use in a multi-carrier communication system in which a terminal is configured with a PCC and at least one SCC, the apparatus including a memory and a processor,
  • the memory stores program code, the processor invoking the program code to perform the method of the first aspect.
  • the terminal is configured with a PCC and at least one SCC, and the downlink transmission of the terminal can be performed by using the PCC and the at least one SCC, but in the current network, for some reason, the base station considers that both the PCC and the SCC are on the PCC and the SCC.
  • the PDSCH is scheduled, and the terminal considers that only the PDSCH is scheduled on the PCC, which causes the base station and the terminal to adopt different PUCCH formats.
  • the base station cannot correctly demodulate the PUCCH, and thus the feedback information sent by the terminal cannot be obtained, and the downlink is continuously performed. pass.
  • the base station demodulates the PUCCH of the terminal by using the PUCCH format for the single serving cell and the PUCCH format for the multiple serving cell, regardless of whether the scheduling scenario of the multiple serving cells occurs.
  • the problem that the feedback information cannot be demodulated due to the inconsistent PUCCH format and the downlink retransmission is continuously solved is solved.
  • the SCC may be located at the same base station as the PCC, or may be located at different base stations.
  • the base station can learn whether the PDSCH scheduling on the SCC actually occurs. Therefore, the base station can reuse the dual when the PDSCH scheduling of the SCC occurs.
  • the PUCCH format demodulates the PDCCH to obtain feedback information sent by the terminal, thereby saving resources of the base station.
  • the first base station schedules the PDSCH on the SCC to perform downlink transmission, that is, sends downlink data to the terminal through the PDSCH on the SCC, and performs demodulation in the dual PUCCH format after performing the step.
  • PUCCH otherwise adopts the first format, that is, PUCCH format demodulation PUCCH for a single serving cell.
  • the base station where the PCC is located does not know the occurrence of PDSCH scheduling on the SCC.
  • the second base station where the SCC is located can notify the occurrence of PDSCH scheduling on the first base station SCC where the PCC is located.
  • the second base station where the SCC is located pre-schedules the PDSCH of the SCC, and the pre-scheduling of the SCC can be notified to the first base station where the PCC is located.
  • the first base station where the PCC is located can perform dual-format demodulation on the PUCCH after obtaining the pre-scheduling condition, so that the resources of the base station can be saved.
  • the first base station receives pre-scheduling information of the PDSCH on the SCC sent by the second base station before performing the step of demodulating the PDCCH.
  • the above feedback information when only PDSCH scheduling occurs on the PCC, the above feedback information includes feedback information of the PDSCH downlink transmission on the PCC; when PDSCH scheduling occurs on both the PCC and the SCC, the above feedback information includes the PDSCH on the PCC.
  • the terminal sends feedback information through the PUCCH, the content of the feedback information It is also possible to include both of the above.
  • the first format includes: Format 1a, Format 1b, Format 2a, or Format 2b; and the second format includes: Format 1bcs or Format 3.
  • the first format in dual carrier aggregation, may be Format 1a/1b, or Format 2a/2b, and the second format may be Format 1bcs or Format 3; in the aggregation of three carriers and above, The first format may be Format 1a/1b, or Format 2a/2b, and the second format may be Format 3.
  • the first base station transmits downlink data to the terminal through the PDSCH on the PCC, and demodulates the PUCCH on the PCC by using the first format and the second format to obtain feedback information sent by the terminal. Therefore, with respect to the prior art, the embodiment of the present invention utilizes two formats to demodulate the PUCCH. In order to obtain the feedback information, the problem that the feedback information cannot be demodulated due to the inconsistent PUCCH format and the downlink retransmission is continuously solved is solved.
  • FIG. 1 is a schematic diagram of an embodiment of a CA scenario according to an embodiment of the present invention
  • FIG. 2 is a flowchart of an embodiment of an information processing method according to an embodiment of the present invention.
  • FIG. 3 is a flowchart of another embodiment of an information processing method according to an embodiment of the present invention.
  • FIG. 4 is a flowchart of another embodiment of an information processing method according to an embodiment of the present invention.
  • FIG. 5 is a flowchart of another embodiment of an information processing method according to an embodiment of the present invention.
  • FIG. 6 is a block diagram of a block diagram of an embodiment of an information processing apparatus according to an embodiment of the present invention.
  • FIG. 7 is a block diagram of another embodiment of an information processing apparatus according to an embodiment of the present invention.
  • FIG. 8 is a hardware block diagram of an embodiment of an information processing apparatus according to an embodiment of the present invention.
  • a terminal also called a User Equipment (UE) is a device that provides voice and/or data connectivity to a user, for example, a handheld device with a wireless connection function, an in-vehicle device, and the like.
  • UE User Equipment
  • Common terminals include, for example, mobile phones, tablets, notebook computers, PDAs, mobile internet devices (MIDs), wearable devices such as smart watches, smart bracelets, pedometers, and the like.
  • MIDs mobile internet devices
  • wearable devices such as smart watches, smart bracelets, pedometers, and the like.
  • a Radio Access Network (RAN) device is a device that accesses a terminal to a wireless network, and is also referred to as a base station, including but not limited to: an evolved Node B (eNB). , radio network controller (RNC), Node B (Node B, NB), Base Station Controller (BSC), base transceiver station (Base Transceiver) Station, BTS), home base station (for example, Home evolved NodeB, or Home Node B, HNB), Base Band Unit (BBU).
  • eNB evolved Node B
  • RNC radio network controller
  • Node B Node B
  • BSC Base Station Controller
  • BTS base transceiver station
  • BTS home base station
  • home base station for example, Home evolved NodeB, or Home Node B, HNB
  • BBU Base Band Unit
  • PUCCH Physical Uplink Control Channel
  • PUCCH format for multi-serving cells refers to the PUCCH format designed after the introduction of CA, and currently includes Format 1bcs (format 1b with channel selection) or Format 3. If other PUCCH formats for multi-serving cells are introduced as needed for communication, they should also be included in the scope covered by this term.
  • Multiple means two or more. "and/or”, describing the association relationship of the associated objects, indicating that there may be three relationships, for example, A and/or B, which may indicate that there are three cases where A exists separately, A and B exist at the same time, and B exists separately.
  • the character “/” generally indicates that the contextual object is an "or” relationship.
  • First”, “second”, “third”, “fourth”, etc. (if present) are used to distinguish similar objects, and are not necessarily used to describe a particular order or order. It is to be understood that the data so used may be interchanged where appropriate so that the embodiments described herein can be implemented in a sequence other than what is illustrated or described herein.
  • LTE Long Term Evolution
  • GSM Global System for Mobile Communications
  • UMTS Universal Mobile Telecommunications System
  • CDMA Code Division Multiple Access
  • FIG. 1 is a schematic diagram of a CA scenario according to an embodiment of the present invention.
  • this embodiment takes two CCs as an example, including one PCC and one SCC.
  • the terminal 100 supports a CA, which accesses the wireless network in the cell 110, and establishes an RRC connection with the base station where the cell 110 is located.
  • the base station then configures the cell 120 to the terminal for CA.
  • the cell 120 is an SCell
  • the corresponding carrier is an SCC
  • the cell 110 is a PCell
  • the corresponding carrier is a PCC.
  • the PDs may be scheduled by the terminal 100 to transmit the data to the terminal 100 through the PDSCH of the PCell and the PDSCH of the SCell, and the terminal 100 feeds back the data of the PDSCH of the PCell and the PDSCH of the SCell.
  • the ACK is fed back when the reception is successful, and the NACK is fed back when the reception fails.
  • the ACK/NACK is usually transmitted through a Physical Uplink Control Channel (PUCCH), and the PUCCH is transmitted only on the PCell. Therefore, in the downlink CA, the terminal may need to perform ACK/NACK feedback on the PDSCH transmitted in the corresponding downlink subframe of all serving cells by using the PUCCH in the uplink subframe of the PCell.
  • PUCCH Physical Uplink Control Channel
  • the PUCCH is mainly used to carry the uplink control information (UCI) sent by the terminal, and the uplink control information mainly includes: a scheduling request (SR); a Hybrid Automatic Repeat Request (HARQ) feedback information.
  • SR scheduling request
  • HARQ Hybrid Automatic Repeat Request
  • ACK or NACK that is, performing HARQ feedback on downlink data sent on the PDSCH
  • CSI channel state information
  • CQI channel quality indicator
  • PMI precoding matrix indication
  • RI Rank Indication
  • Format 1 is used for terminal uplink transmission scheduling request; Format 1a/1b It is used to send ACK/NACK to the uplink of the terminal, and can also send a scheduling request.
  • Format 1a ACK/NACK occupies 1 bit.
  • Format 1b ACK/NACK occupies 2 bits.
  • Format 2 is used for uplink CSI transmission; Format 2a/2b is used for uplink transmission of CSI and ACK/NAK, for Format 2a, ACK/NACK occupies 1 bit, and for Format 2b, ACK/NACK occupies 2 bits.
  • PUCCH formats are designed for a single serving cell and cannot meet the needs of CA.
  • two PUCCH formats are provided to support CA, which are Format 1bcs and Format 3, respectively.
  • Format 1bcs uses the 2-bit information carried by Format 1b and indicates the ACK/NACK to be transmitted through a specific PUCCH resource, which supports a scenario of no more than 4 ACK/NACK bit information and no more than 2 serving cells.
  • Format 3 currently supports five serving cells and is configured with multiple-input multiple-output (MIMO) scenarios in each serving cell.
  • MIMO multiple-input multiple-output
  • Format 3 can also support the scenario of two serving cells. Specifically, whether Format 3 or Format 1bcs is used depends on the configuration of the base station.
  • the base station and the terminal may be inconsistent in understanding the current scenario, and different PUCCH formats are selected. For example, if the base station configures the SCC for the terminal and the PDSCH transmission is also performed on the SCC, the base station uses the PUCCH format for the multi-serving cell to demodulate the PUCCH; and the terminal may not know that the SCC is also performed for some reason.
  • the PDSCH transmission is performed, and the terminal adopts the PUCCH format for the single serving cell to perform PUCCH transmission. In this way, the base station cannot correctly demodulate the feedback information of the terminal, and even if the terminal feeds back the ACK, the base station cannot know, and then performs downlink retransmission, resulting in a decrease in the downlink throughput rate.
  • the present application provides an information processing method, in which a base station configures an SCC for a terminal, and performs dual-format demodulation on a PUCCH of the terminal, that is, demodulates the PUCCH of the terminal in two formats, where One format is a PUCCH format for a single serving cell, and the second format is a PUCCH format for a multi-serving cell.
  • One format is a PUCCH format for a single serving cell
  • the second format is a PUCCH format for a multi-serving cell.
  • FIG. 2 is a flowchart of an information processing method according to an embodiment of the present invention.
  • the method is used in a multi-carrier communication system.
  • a terminal is configured with a PCC and at least one SCC, so that downlink transmission of the terminal can be performed by using a PCC and a PDSCH of at least one SCC.
  • the method includes the following steps:
  • the base station transmits downlink data to the terminal by using the PDSCH on the PCC, that is, the base station schedules the PDSCH on the PCC to perform downlink transmission.
  • the base station demodulates the PUCCH on the PCC by using the first format and the second format to obtain feedback information sent by the terminal, where the first format is a PUCCH format for a single serving cell, and the second format is a PUCCH for a multi-serving cell. format.
  • the above base station is a base station where the PCC is located, and the SCC may be located at the same base station as the PCC, or may be located at different base stations.
  • the base station can learn whether the scheduling of the PDSCH channel on the SCC actually occurs, and adopts the above method when the real occurs, so that the SCC is configured for the terminal at the base station, but multiple services are not performed.
  • the scheduling of the cell is performed, only the scheduling on the PCC is performed, the dual-format demodulation on the PUCCH may not be performed; and when the PDSCH scheduling is performed on both the PCC and the SCC, the dual-format demodulation on the PUCCH is performed. It can save resources of the base station.
  • the base station where the PCC is located does not know the scheduling of the PDSCH on the SCC.
  • the base station where the SCC is located needs to notify the occurrence of PDSCH scheduling on the base station SCC where the PCC is located.
  • the base station where the SCC is located needs to be pre-scheduled (or referred to as early scheduling, that is, resources are allocated in advance for the PDSCH of the SCC before the real scheduling occurs), and the PDSCH of the SCC can be used for the SCC.
  • the pre-scheduling situation is notified to the base station where the PCC is located.
  • the base station where the PCC is located can perform dual-format demodulation on the PUCCH after obtaining the pre-scheduling condition, so that the resources of the base station can be saved.
  • the dual-format demodulation mode may also be adopted as long as the base station configures the SCC for the terminal regardless of whether the scheduling scenarios of the multiple serving cells actually occur. This application is not limited to this.
  • FIG. 3 is a flowchart of another information processing method according to an embodiment of the present invention.
  • This embodiment takes the two CC scenarios of LTE as an example, that is, dual-carrier aggregation, including one PCC and one SCC, respectively corresponding to PCell and SCell, and PCell and SCell are located in the same base station, that is, eNodeB0.
  • the method includes the following steps:
  • the eNodeB0 transmits downlink data to the terminal through the PDSCH on the PCC, and transmits downlink data to the terminal through the PDSCH on the SCC.
  • the terminal sends feedback information to the PCell through the PUCCH.
  • the eNodeB0 demodulates the PUCCH by using the first format and the second format.
  • the first format may be Format 2a/2b or Format 1a/1b
  • the second format may be Format 1bcs or Format 3.
  • the eNodeB0 transmits, to the terminal, the scheduling information of the scheduled PCC and the PDSCH on the SCC for downlink transmission through the Physical Downlink Control Channel (PDCCH).
  • PDCH Physical Downlink Control Channel
  • the terminal sends CSI to the eNodeB0; if the terminal receives the scheduling information, and the scheduling information includes: scheduling information of the PCell And the scheduling information of the SCell, then the terminal will abandon the CSI, and use the Format 1bcs format to send the feedback information of the PDSCH downlink transmission on the PCC and the downlink information of the PDSCH transmission on the SCC to the PCell through the PUCCH; When the scheduling information of the PCell is received, and the scheduling information of the SCell is not received, the terminal uses the Format 2a/2b and sends the feedback information of the PDSCH downlink transmission on the PCC to the PCell through the PUCCH.
  • the PCell of the eNodeB0 demodulates the PUCCH, it not only demodulates the PUCCH in the Format 1bcs format, but also demodulates the PUCCH using the Format 2a/2b.
  • the PUCCH is demodulated by two formats, and one of them is consistent with the PUCCH format adopted by the terminal, so that the feedback information of the terminal can be correctly demodulated, thereby avoiding downlink retransmission.
  • the Format 1bcs format is used for demodulation, which improves the demodulation efficiency.
  • the Format 2a/2b format can be used for demodulation first.
  • the Format 1bcs format is used for demodulation. set.
  • FIG. 4 is a flowchart of another information processing method according to an embodiment of the present invention.
  • This embodiment takes the two CC scenarios of LTE as an example.
  • the SCC and the PCC are located at different base stations.
  • the PCC corresponds to the PCell and is located on the eNodeB0.
  • the SCC corresponds to the SCell and is located on the eNodeB1.
  • the method includes the following steps:
  • the eNodeB1 sends pre-scheduling information of the PDSCH on the SCC to the eNodeB0.
  • the eNodeB1 transmits downlink data to the terminal by using a PDSCH on the SCC.
  • the eNodeB0 transmits downlink data to the terminal by using a PDSCH on the PCC.
  • the terminal sends feedback information to the PCell through the PUCCH.
  • the eNodeB0 demodulates the PUCCH by using the first format and the second format.
  • the first format may be Format 2a/2b or Format 1a/1b; the second format is Format 1bcs or Format 3.
  • the above step S420 does not necessarily occur. That is to say, although the eNodeB1 pre-schedules the PDSCH of the SCC, the real scheduling does not occur for some reason, that is, the eNodeB1 is not pre-assigned to the reason for some reasons.
  • the resources of the PDSCH of the SCC are used to transmit downlink data.
  • the terminal considers that only PDSCH scheduling occurs on the PCC, and the feedback information is sent to the PCell by using Format 2a/2b. Since the eNodeB0 receives the pre-scheduling information, the Format 1bcs or Format 3 is used to demodulate the PUCCH, resulting in a terminal.
  • the adopted PUCCH format is inconsistent, and the problem of PUCCH cannot be correctly demodulated.
  • the eNodeB0 adopts dual format demodulation for the single serving cell and the dual serving cell. There is always one format consistent with the format adopted by the terminal, so the PUCCH can be successfully demodulated to obtain the feedback information of the terminal.
  • the SCC and the PCC are located in different base stations, so the eNodeB1 where the SCC is located needs to notify the eNodeB0 where the PCC is located. Due to the existence of the inter-station delay, the eNodeB1 pre-schedules the PDSCH on the SCC and notifies the eNodeB0 of the pre-scheduling of the SCC. After knowing the pre-scheduling information of the PDSCH on the SCC scheduled by the eNodeB1, the NodeB0 demodulates the PUCCH in two formats to correctly demodulate the feedback information of the terminal, thereby avoiding downlink retransmission.
  • FIG. 5 is a flowchart of another information processing method according to an embodiment of the present invention.
  • This embodiment takes the three-CC scenario of LTE as an example, that is, three-carrier aggregation, including one PCC and two SCCs (for example, SCC0 and SCC1).
  • the terminal If the base station side schedules the PDSCH in the PCC and the at least one SCC (for example, SCC0), but for some reason, the terminal does not receive the PDCCH sent and received by the SCC (for example, SCC0), the terminal considers that only the PCC is scheduled, and then uses The PUCCH format for the single serving cell feeds back the ACK/NACK information on the PUCCH, and the base station side demodulates the ACK/NACK information of the terminal on the PUCCH using the PUCCH format (Format 3) for the multi-serving cell, due to the inconsistent format. The base station side cannot demodulate this ACK/NACK information. At this time, using the method shown in FIG. 5, the base station demodulates the PUCCH in a dual format, so that there is always one format consistent with the terminal to demodulate the ACK/NACK information of the terminal.
  • the method includes the following steps:
  • S510 The base station where the PCell is located transmits the downlink data to the terminal through the PDSCH on the PCC, and the base station where the SCell0 is located transmits the downlink data to the terminal through the PDSCH on the SCC0.
  • the terminal sends feedback information to the PCell through the PUCCH.
  • the base station where the PCell is located demodulates the PUCCH by using the first format and the second format.
  • the first format may be Format 1a/1b or Format 2a/2b, and the second format is Format 3.
  • the PCell, the SCell0, and the SCell1 may be located in the same base station, or may be located in two or three different base stations, which are not limited herein. As long as SCell0 and/or SCell1 at different base stations with the PCell transmit the pre-scheduling information to the PCell before scheduling the PDSCH.
  • the information processing method in the embodiment of the present invention has been described above.
  • the information processing apparatus in the embodiment of the present invention is described below.
  • the apparatus is used in a multi-carrier communication system in which the terminal is configured with a PCC and at least For one SCC, the downlink transmission of the terminal can be performed by the PCC and the PDSCH of at least one SCC.
  • FIG. 6 is a block diagram of an embodiment of an information processing apparatus according to an embodiment of the present invention, where an SCC and a PCC are located at the same base station. As shown in Figure 6, the device includes:
  • the first scheduling module 610 is configured to schedule a PDSCH on the PCC to perform downlink transmission, that is, transmit downlink data to the terminal by using a PDSCH on the PCC;
  • a second scheduling module 620 configured to schedule a PDSCH on the SCC for downlink transmission, that is, The PDSCH on the SCC transmits downlink data to the terminal;
  • the demodulation module 630 is configured to demodulate the PUCCH on the PCC by using the first format and the second format to obtain feedback information sent by the terminal, where the first format is a PUCCH format for a single serving cell, and the second format is used for PUCCH format of a multi-serving cell.
  • each of the above modules may be a separately set processing component, or may be integrated in one chip of the base station, or may be stored in the memory of the base station in the form of program code, and processed by one of the base stations.
  • the component calls and executes the functions of each of the above units.
  • the individual units can be integrated or implemented independently.
  • the processing component described herein may be a Central Processing Unit (CPU), or an Application Specific Integrated Circuit (ASIC), or one or more integrated circuits configured to implement the above method.
  • CPU Central Processing Unit
  • ASIC Application Specific Integrated Circuit
  • microprocessors Digital Signal Processors, DSPs
  • FPGAs Field Programmable Gate Arrays
  • FIG. 7 is a block diagram of another embodiment of an information processing apparatus according to an embodiment of the present invention.
  • the SCC and the PCC are located at different base stations.
  • the apparatus includes:
  • the interface module 710 is configured to receive pre-scheduling information of the PDSCH on the SCC sent by the second base station where the SCC is located.
  • the first scheduling module 720 is configured to schedule a PDSCH on the PCC to perform downlink transmission, that is, transmit downlink data to the terminal by using a PDSCH on the PCC;
  • the demodulation module 730 is configured to demodulate the PUCCH on the PCC by using the first format and the second format to obtain feedback information sent by the terminal, where the first format is a PUCCH format for a single serving cell, and the second format is used for PUCCH format of a multi-serving cell.
  • the feedback information includes: feedback information of the PDSCH downlink transmission on the PCC; when the terminal receives the scheduling information of the PCell and the scheduling information of the SCell, the feedback information includes: The feedback information of the downlink transmission of the PDSCH on the PCC and the feedback information of the downlink transmission of the PDSCH on the SCC.
  • the first format is: Format 1a/1b or Format 2a/2b
  • the second format is: Format 1bcs or Format 3
  • the first format is: Format 1a/1b Or Format 2a/2b
  • the second format is: Format 3.
  • the specific use of Format 1a/1b or Format 2a/2b can be determined according to the content of the uplink control information, and in the case of dual carrier aggregation, Format 1bcs or Format 3 can be configured by the base station.
  • the foregoing interface module 710 is used to implement communication with other base stations, and may be, for example, an X2 interface module.
  • the other modules may be separately set as processing elements, or may be integrated in one chip of the base station, or may be stored in the memory of the base station in the form of program code, which is called and executed by a certain processing element of the base station.
  • the individual units can be integrated or implemented independently.
  • the processing component described herein may be a Central Processing Unit (CPU), or an Application Specific Integrated Circuit (ASIC), or one or more integrated circuits configured to implement the above method.
  • CPU Central Processing Unit
  • ASIC Application Specific Integrated Circuit
  • microprocessors Digital Signal Processors
  • FPGAs Field Programmable Gate Arrays
  • FIG. 8 is a hardware block diagram of an embodiment of an information processing apparatus according to an embodiment of the present invention.
  • the apparatus 800 is located in a base station, and the base station is used in a multi-carrier communication system.
  • terminal configuration With the PCC and at least one SCC, the downlink transmission of the terminal can be performed by the PCC and the PDSCH of at least one SCC.
  • the base station includes:
  • the antenna 801 is connected to the radio frequency device 802; and the radio frequency device 802 receives feedback information on the PUCCH of the PCC through the antenna 801. And the radio frequency device 802 transmits the feedback information to the baseband device 803.
  • the baseband device 803 is configured to demodulate and process the feedback information, and determine whether to perform downlink retransmission according to the feedback information.
  • the above device 800 can be located in the baseband device 803, including the processor 8031 and the memory 8032.
  • the baseband device 803 may include, for example, at least one baseband board, and the baseband board is provided with a plurality of chips, as shown in FIG. 8, one of the chips is, for example, a processor 8031, and is connected to the memory 8032 to schedule a program in the memory 8032 to execute The operations shown in the above method embodiments.
  • the baseband device 803 can also include an interface 8033 for interacting with the radio frequency device 802, such as a common public radio interface (CPRI).
  • CPRI common public radio interface
  • the above first scheduling module 610 and second scheduling module 620 may pass through the baseband device 803.
  • the demodulation module 630 is implemented by another chip, or they are integrated together, implemented by one chip; or, their functions are stored in the memory 8032 in the form of program code, through a processor 8031 scheduling implementation.
  • the first scheduling module 720 and the demodulation module may be implemented by two chips respectively, or may be implemented by one chip; or, their functions may be stored in the memory 8032 in the form of program code, through a processor 8031.
  • Scheduling implementation; the interface 8033 can be implemented by setting an interface circuit that supports the X2 protocol.
  • the core network can also be implemented through the S1 port, and can also be implemented through the wireless interface. Do not make any restrictions.
  • the disclosed system, apparatus, and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium. Based on this understanding, this issue
  • the technical solution of the present invention, or all or part of the technical solution, may be embodied in the form of a software product stored in a storage medium, including a plurality of instructions.
  • a computer device (which may be a personal computer, server, or network device, etc.) is caused to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

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Abstract

本发明实施例公开了一种信息处理方法及装置，用于多载波通信系统中，在多载波通信系统中，终端配置有PCC和至少一个SCC，该方法包括：第一基站通过PCC上的PDSCH向所述终端传输下行数据，其中第一基站为PCC所在的基站；第一基站利用第一格式和第二格式解调PCC上的PUCCH，以得到所述终端发送的反馈信息，其中第一格式为用于单服务小区的PUCCH格式，第二格式为用于多服务小区的PUCCH格式。本发明实施例利用两种格式来解调PUCCH，以获取反馈信息，解决了因为PUCCH格式不一致而导致的反馈信息无法解调，不断进行下行重传的问题。

Description

一种信息处理方法及装置 技术领域
本发明涉及移动通信技术领域，尤其涉及一种信息处理方法及装置。
背景技术
随着移动通信技术的发展，智能终端逐渐普及，数据业务流量的爆发式增长。为了更好的应对这种增长，为移动用户提供更高速、更丰富的业务体验，移动通信系统中引入了载波聚合(Carrier Aggregation，CA)技术。CA技术通过多个连续或非连续的载波的聚合来获得更大的系统带宽，从而提高峰值速率和系统吞吐量。这些聚合的载波称为成员载波(Component Carrier，CC)，每个CC可以对应一个服务小区，这些服务小区可以位于同一基站，也可以位于不同基站。
在聚合的CC中，包括一个主成员载波(Primary Component Carrier，PCC)和至少一个辅成员载波(Secondary Component Carrier，SCC)。其中，PCC对应的小区为主小区(PCell)，是终端初始接入的小区，负责与终端之间的无线资源控制(radio resource control，RRC)通信；SCC对应的小区为辅小区(SCell)，可以在RRC重配置时添加，以提供额外的无线资源。基站侧在PCC和SCC上均可以调度物理下行共享信道(Physical Downlink Shared Channel，PDSCH)，终端对PDSCH上的传输通过PCell的物理上行控制信道(Physical Uplink Control Channel，PUCCH)进行反馈，基站对该反馈进行解调。
目前，在解调过程中，往往存在解调可靠性不高而导致的下行重传等问题，导致CA终端的下行吞吐率下降。
发明内容
本发明实施例提供了一种信息处理方法及装置，以提高CA终端的下行吞吐率。
第一方面提供一种信息处理方法，该方法用于多载波通信系统中，在所 述多载波通信系统中，终端配置有PCC和至少一个SCC，该方法包括：
第一基站通过所述PCC上的PDSCH向所述终端传输下行数据，其中所述第一基站为所述PCC所在的基站；
第一基站利用第一格式和第二格式解调所述PCC上的PUCCH，以得到所述终端发送的反馈信息，其中所述第一格式为用于单服务小区的PUCCH格式，所述第二格式为用于多服务小区的PUCCH格式。
相应的，第二方面提供一种信息处理装置，用于多载波通信系统中，在所述多载波通信系统中，终端配置有PCC和至少一个SCC，该装置包括：
第一调度模块，用于通过所述PCC上的PDSCH向终端传输下行数据；
解调模块，用于利用第一格式和第二格式解调所述PCC上的PUCCH以得到所述终端发送的反馈信息，其中所述第一格式为用于单服务小区的PUCCH格式，所述第二格式为用于多服务小区的PUCCH格式。
相应的，第三方面提供一种信息处理装置，用于多载波通信系统中，在所述多载波通信系统中，终端配置有PCC和至少一个SCC，所述装置包括存储器和处理器，所述存储器存储程序代码，所述处理器调用所述程序代码执行第一方面所述的方法。
可见，在以上方法和装置中，终端配置有PCC和至少一个SCC，则终端的下行传输可以通过PCC和至少一个SCC进行，但现网中，由于某些原因，基站认为在PCC和SCC上均调度了PDSCH，而终端认为仅PCC上调度了PDSCH，导致了基站和终端采用了不同的PUCCH格式，如此，导致基站无法正确解调PUCCH，进而无法获得终端发送的反馈信息，而不断进行下行重传。
以上方法和装置中，基站不管多个服务小区的调度场景是否真实发生，均采用用于单服务小区的PUCCH格式和用于多服务小区的PUCCH格式这两种格式对终端的PUCCH进行解调，以获取反馈信息，解决了因为PUCCH格式不一致而导致的反馈信息无法解调，不断进行下行重传的问题。
在以上各个方面，SCC可以与PCC位于同一基站，也可以位于不同基站。
当SCC与PCC位于同一基站时，基站可以获知SCC上的PDSCH调度是否真实发生，因此，基站可以在该SCC的PDSCH调度真实发生时，再利用双 PUCCH格式解调PDCCH以获得终端发送的反馈信息，从而节约基站的资源。此时第一基站在执行解调PDCCH的步骤之前，调度SCC上的PDSCH进行下行传输，即通过SCC上的PDSCH向终端发送下行数据，并在执行了该步骤之后，才用双PUCCH格式解调PUCCH，否则采用第一格式，即用于单服务小区的PUCCH格式解调PUCCH。
当SCC与PCC位于不同基站时，由于PCC所在的基站并不知道SCC上PDSCH的调度的发生。为此，SCC所在的第二基站可以通知PCC所在的第一基站SCC上PDSCH调度的发生。由于站间时延的存在，SCC所在的第二基站预调度SCC的PDSCH，且可以将对SCC的预调度情况通知给PCC所在的第一基站。PCC所在的第一基站可以在获得该预调度情况之后，才进行PUCCH上的双格式解调，如此可以节约基站的资源。此时第一基站在执行解调PDCCH的步骤之前，接收第二基站发送的SCC上的PDSCH的预调度信息。
在以上各个方面，当仅有PCC上发生了PDSCH调度时，以上反馈信息包括PCC上的PDSCH下行传输的反馈信息；当PCC和SCC上均发生了PDSCH调度时，以上反馈信息包括PCC上的PDSCH下行传输的反馈信息和SCC上的PDSCH下行传输的反馈信息。
由于复杂的无线网络环境的影响，即便基站侧的PCC和SCC上都进行了PDSCH调度，但是并不能确保终端一定能够收到调度指示，相应的，终端通过PUCCH发送反馈信息时，反馈信息的内容也就可能会包含上述两种情况。
在以上各个方面，所述第一格式包括：Format 1a、Format 1b、Format 2a或Format 2b；所述第二格式包括：Format 1bcs或Format 3。
就目前的应用场景而言，在双载波聚合中，第一格式可以为Format 1a/1b，或Format 2a/2b，第二格式可以为Format 1bcs或Format 3；在三载波及以上的聚合中，第一格式可以为Format 1a/1b，或Format 2a/2b，第二格式可以为Format 3。
以上提供的技术方案中，第一基站通过PCC上的PDSCH向终端传输下行数据，并利用第一格式和第二格式解调PCC上的PUCCH，以得到终端发送的反馈信息。因此相对于现有技术，本发明实施例利用两种格式来解调PUCCH， 以获取反馈信息，解决了因为PUCCH格式不一致而导致的反馈信息无法解调，不断进行下行重传的问题。
附图说明
图1为本发明实施例中CA场景一种实施例的示意图；
图2为本发明实施例中信息处理方法一种实施例的流程图；
图3为本发明实施例中信息处理方法另一种实施例的流程图；
图4为本发明实施例中信息处理方法另一种实施例的流程图；
图5为本发明实施例中信息处理方法另一种实施例的流程图；
图6为本发明实施例中信息处理装置一种实施例的模块框图；
图7为本发明实施例中信息处理装置另一种实施例的模块框图；
图8为本发明实施例中信息处理装置一种实施例的硬件框图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
以下，对本申请中的部分用语进行解释说明，以便于本领域技术人员理解。
1)、终端，又称之为用户设备(User Equipment，UE)，是一种向用户提供语音和/或数据连通性的设备，例如，具有无线连接功能的手持式设备、车载设备等。常见的终端例如包括：手机、平板电脑、笔记本电脑、掌上电脑、移动互联网设备(mobile internet device，MID)、可穿戴设备，例如智能手表、智能手环、计步器等。
2)、无线接入网(Radio Access Network，RAN)设备是一种将终端接入到无线网络的设备，又称之为基站，包括但不限于：演进型节点B(evolved Node B，eNB)、无线网络控制器(radio network controller，RNC)、节点B(Node B，NB)、基站控制器(Base Station Controller，BSC)、基站收发台(Base Transceiver  Station,BTS)、家庭基站(例如，Home evolved NodeB，或Home Node B，HNB)、基带单元(Base Band Unit，BBU)。
3)、用于单服务小区的物理上行控制信道(Physical Uplink Control Channel，PUCCH)格式：是指在引入CA之前针对单个服务小区所设计的PUCCH格式，可以为以下表格1中的任一种格式。
4)、用于多服务小区的PUCCH格式：是指引入CA之后设计的PUCCH格式，目前包括Format 1bcs(format 1b with channel selection)或Format 3。若随着通信需要，而引入其它用于多服务小区的PUCCH格式，也应包括在本用语所覆盖的范围之内。
5)、“多个”是指两个或两个以上。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。“第一”、“第二”、“第三”“第四”等(如果存在)是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的实施例能够以除了在这里图示或描述的内容以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于列出的那些步骤或单元，而是可包括没有列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
本领域技术人员应当知晓，本发明不仅仅适用于通用移动通信技术的长期演进(Long Term Evolution，LTE)系统，也可以适用于其他无线通信系统，例如全球移动通信系统(Global System for Mobile Communications，GSM)，通用移动通信系统(Universal Mobile Telecommunications System，UMTS)，码分多址接入(Code Division Multiple Access，CDMA)系统，以及未来不断演进的网络系统等。
请参见图1，其为本发明实施例提供的一种CA场景的示意图。为了方便描述，该实施例以两CC为例，包括一个PCC和一个SCC。对于两个以上CC(包括一个PCC和至少两个SCC)的场景，与之类似。
如图1所示，终端100支持CA，其在小区110接入无线网络，与小区110所在的基站建立RRC连接。而后，基站将小区120配置给终端以进行CA。其中小区120为SCell，对应的载波为SCC；小区110为PCell，对应的载波为PCC。在PCell和SCell上均可以对终端100进行PDSCH的调度，以通过PCell的PDSCH和SCell的PDSCH将数据发送给终端100，终端100对PCell的PDSCH和SCell的PDSCH上的数据的接收情况进行反馈，当接收成功时反馈ACK，接收失败时反馈NACK。ACK/NACK通常通过物理上行控制信道(Physical Uplink Control Channel，PUCCH)传输，且PUCCH仅在PCell上传输。因此在下行CA中，终端可能需要在PCell的上行子帧中，使用PUCCH，对所有服务小区相应的下行子帧中传输的PDSCH进行ACK/NACK反馈。
PUCCH主要用于承载终端发送的上行控制信息(Uplink Control Information，UCI)，该上行控制信息主要包括：调度请求(Scheduling Request，SR)；混合自动重传请求(Hybrid Automatic Repeat Request，HARQ)反馈信息，例如ACK或NACK，即对PDSCH上发送的下行数据进行HARQ反馈；信道状态信息(Channel State Information，CSI)，例如可以包括信道质量指示(Channel Quality Indicator，CQI)、预编码矩阵指示(Precoding Matrix Indication，PMI)，秩指示(Rank Indication，RI)中的一个或多个。
PUCCH的格式有多种，针对UCI的内容不同，所采用的格式也不同。例如，表格1给出了目前支持的PUCCH的格式以及各个格式UCI的内容。
表格1
PUCCH格式 UCI的内容
Format 1 SR
Format 1a 1bit ACK/NACK，或，1bit ACK/NACK和SR
Format 1b 2bit ACK/NACK，或，2bit ACK/NACK和SR
Format 2 CSI
Format 2a CSI和1bit ACK/NACK
Format 2b CSI和2bit ACK/NACK
从以上表格可以看出，Format 1用于终端上行发送调度请求；Format 1a/1b 用于终端上行发送ACK/NACK，且同时可以发送调度请求，对于Format 1a，ACK/NACK占用1bit，对于Format 1b，ACK/NACK占用2bit。Format 2用于上行发送CSI；Format 2a/2b用于上行发送CSI和ACK/NAK，对于Format 2a，ACK/NACK占用1bit，对于Format 2b，ACK/NACK占用2bit。
以上PUCCH的格式都是针对单个服务小区设计的，无法满足CA的需求。为此，提供了两个PUCCH格式以支持CA，这两个格式分别为Format 1bcs和Format 3。
Format 1bcs使用Format 1b携带的2bit信息，并通过特定PUCCH资源来指示所要发送的ACK/NACK，其支持不超过4个ACK/NACK bit信息且不多于2个服务小区的场景。
Format 3目前可支持5个服务小区且在每个服务小区都配置了多输入多输出(multiple-input multiple-output，MIMO)的场景。当然Format 3也能够支持2个服务小区的场景，具体是使用Format 3还是Format 1bcs取决于基站的配置。
当引入针对CA场景的PUCCH格式以后，会出现基站和终端对于当前场景理解不一致，而选用不同的PUCCH格式的情况。例如基站为终端配置了SCC，且该SCC上也进行了PDSCH传输，则基站会采用用于多服务小区的PUCCH格式来解调PUCCH；而终端可能由于某些原因，并不知道SCC上也进行了PDSCH传输，进而终端采用了用于单服务小区的PUCCH格式来进行PUCCH传输。如此基站无法正确解调终端的反馈信息，即使终端反馈了ACK，基站也无法获知，进而进行下行重传，导致下行吞吐率下降。
考虑到以上问题，本申请提供一种信息处理方法，在基站为终端配置了SCC的情况下，对终端的PUCCH进行双格式解调，即采用两种格式对终端的PUCCH进行解调，其中第一种格式为用于单服务小区的PUCCH格式，第二种格式为用于多服务小区的PUCCH格式。如此，即使终端对于当前场景的理解与基站不一致，选择了与基站不同的PUCCH格式，基站也可以利用两种格式来解调PUCCH，以获取反馈信息，解决了因为PUCCH格式不一致而导致的反馈信息无法解调，不断进行下行重传的问题。
请参见图2，其为本发明实施例所提供的一种信息处理方法的流程图。该 方法用于多载波通信系统中，在多载波通信系统中，终端配置有PCC和至少一个SCC，如此该终端的下行传输可以通过PCC和至少一个SCC的PDSCH进行。如图2所示，该方法包括如下步骤：
S210、基站通过PCC上的PDSCH向终端传输下行数据，即基站调度PCC上的PDSCH进行下行传输；
S220、基站利用第一格式和第二格式解调PCC上的PUCCH以得到终端发送的反馈信息，其中第一格式为用于单服务小区的PUCCH格式，第二格式为用于多服务小区的PUCCH格式。
以上基站为PCC所在的基站，且SCC可以与PCC位于同一个基站，也可以位于不同基站。当PCC与SCC位于同一基站时，该基站可以获知SCC上的PDSCH信道的调度是否真实发生，且在真实发生时采用以上方法，如此，在基站为终端配置了SCC，但并没有进行多个服务小区的调度，而仅仅进行了PCC上的调度时，可以不进行PUCCH上的双格式解调；而仅在PCC和SCC上都进行了PDSCH调度时，才进行PUCCH上的双格式解调，如此可以节约基站的资源。
当PCC与SCC位于不同基站时，由于PCC所在的基站并不知道SCC上PDSCH的调度的发生。要想在明确了是多个服务小区的调度场景，再进行双格式解调，需要SCC所在的基站通知PCC所在的基站SCC上PDSCH调度的发生。但是由于站间时延的存在，SCC所在的基站需要预调度(或称之为提前调度，即在真实调度发生之前，预先为SCC的PDSCH分配好资源)SCC的PDSCH，且可以将对SCC的预调度情况通知给PCC所在的基站。PCC所在的基站可以在获得该预调度情况之后，才进行PUCCH上的双格式解调，如此可以节约基站的资源。
当然，也可以在只要基站为终端配置了SCC，而不管多个服务小区的调度场景是否真实发生时，就采用双格式解调的方式。本申请不以此为限。
以下分别以2CC，3CC等场景为例，描述以上方法的具体应用，其仅用于举例，并非用于限制本发明。
请参考图3，其为本发明实施例所提供的另一种信息处理方法的流程图。 该实施例以LTE的两CC场景为例，即双载波聚合，包括一个PCC和一个SCC，分别对应PCell和SCell，且PCell和SCell位于同一个基站，即eNodeB0。如图3所示，该方法包括如下步骤：
S310、eNodeB0通过PCC上的PDSCH向终端传输下行数据，同时通过SCC上的PDSCH向终端传输下行数据；
S320、终端通过PUCCH向PCell发送反馈信息；
S330、eNodeB0利用第一格式和第二格式解调PUCCH。
上述第一格式可以为Format 2a/2b，也可以为Format 1a/1b，第二格式可以为Format 1bcs，也可以为Format 3。
例如，在传输时间间隔(Transmission Time Interval，TTI)＝N时刻，eNodeB0通过物理下行控制信道(Physical Downlink Control Channel，PDCCH)向终端发送调度PCC以及SCC上的PDSCH进行下行传输的调度信息。
在TTI＝N+4时刻，如果终端没有收到上述调度信息，且终端有CSI需要上报时，终端会向eNodeB0发送CSI；如果终端收到了上述调度信息，且该调度信息包括：PCell的调度信息和SCell的调度信息，那么此时终端会放弃发送CSI，而采用Format 1bcs格式并通过PUCCH向PCell发送PCC上的PDSCH下行传输的反馈信息和SCC上的PDSCH下行传输的反馈信息；如果终端仅收到了PCell的调度信息，而没有收到SCell的调度信息，那么终端会采用Format 2a/2b并通过PUCCH向PCell发送PCC上的PDSCH下行传输的反馈信息。
基于此，eNodeB0的PCell在解调PUCCH时，不仅会采用Format 1bcs格式解调PUCCH，而且还采用Format 2a/2b解调PUCCH。通过两种格式来解调PUCCH，总有一种是与终端采用的PUCCH格式一致的，从而可以正确解调出终端的反馈信息，从而避免下行重传。
需要说明的是，由于在eNodeB0侧是确定了PCell和SCell均调度了PDSCH，那么PCell在解调PUCCH时，较好的是，先采用Format 1bcs格式进行解调，在Format 1bcs格式解调失败的情况下，再采用Format 2a/2b格式解调，如此可以提高解调效率。当然也不排除可以先采用Format 2a/2b格式进行解调，在Format2a/2b格式解调失败的情况下，再采用Format 1bcs格式解调，具体此处不做限 定。
请参考图4，其为本发明实施例所提供的另一种信息处理方法的流程图。该实施例以LTE的两CC场景为例，与以上实施例不同的是，SCC与PCC位于不同基站，如：PCC对应于PCell，位于eNodeB0上，SCC对应于SCell，位于eNodeB1上。如图4所示，该方法包括如下步骤：
S410、eNodeB1向eNodeB0发送SCC上的PDSCH的预调度信息；
S420、eNodeB1通过SCC上的PDSCH向终端传输下行数据；
S430、eNodeB0通过PCC上的PDSCH向终端传输下行数据；
S440、终端通过PUCCH向PCell发送反馈信息；
S450、eNodeB0利用第一格式和第二格式解调PUCCH。
上述第一格式可以为Format 2a/2b，也可以为Format 1a/1b；第二格式为Format 1bcs，也可以为Format 3。
在以上方法中，以上步骤S420未必真实发生，也就是说eNodeB1虽然预调度了SCC的PDSCH，但是由于某些原因，真实调度并未发生，也就是说eNodeB1由于某些原因并没有将预先分配给该SCC的PDSCH的资源用于传输下行数据。此时，终端认为仅有PCC上发生了PDSCH调度，采用Format 2a/2b向PCell发送反馈信息；而eNodeB0由于收到了预调度信息，因此会采用Format 1bcs或Format 3来解调PUCCH，导致与终端采用的PUCCH格式不一致，而无法正确解调PUCCH的问题。采用以上方法以后，eNodeB0采用用于单服务小区和双服务小区的双格式解调，总有一种格式与终端采用的格式一致，因此可以成功解调PUCCH，以获取终端的反馈信息。
可见，与上述实施例不同的是，本实施例由于SCC与PCC位于不同基站，因此SCC所在的eNodeB1需要将SCC的调度情况通知给PCC所在的eNodeB0。由于站间时延的存在，eNodeB1预调度SCC上的PDSCH，并将SCC的预调度情况通知给eNodeB0。NodeB0在知悉了eNodeB1调度SCC上的PDSCH的预调度信息之后，会通过两种格式来解调PUCCH，以正确解调出终端的反馈信息，从而避免下行重传。
请参考图5，其为本发明实施例所提供的另一种信息处理方法的流程图。 该实施例以LTE的三CC场景为例，即三载波聚合，包括一个PCC和两个SCC(如：SCC0和SCC1)。如果基站侧在PCC和至少一个SCC(例如SCC0)调度了PDSCH，但是由于某些原因，终端没有收到SCC(例如SCC0)上下发的PDCCH，那么终端会认为当前仅PCC有调度，随后会使用用于单服务小区的PUCCH格式在PUCCH上反馈ACK/NACK信息，而基站侧会使用用于多服务小区的PUCCH格式(Format 3)在PUCCH上解调该终端的ACK/NACK信息，由于格式不一致，基站侧无法解调到这次的ACK/NACK信息。此时，采用如图5所示的方法，基站采用双格式解调PUCCH，使得总有一种格式与终端一致，以解调终端的ACK/NACK信息。
如图5所示，该方法包括如下步骤：
S510、PCell所在的基站通过PCC上的PDSCH向终端传输下行数据，同时SCell0所在的基站通过SCC0上的PDSCH向终端传输下行数据；
S520、终端通过PUCCH向PCell发送反馈信息；
S530、PCell所在的基站利用第一格式和第二格式解调PUCCH。
上述第一格式可以为Format 1a/1b，也可以为Format 2a/2b，第二格式为Format 3。
本实施例中，PCell、SCell0和SCell1是可以位于同一基站，也可以是位于两个或三个不同的基站，具体此处不做限定。只要与PCell处于不同基站的SCell0和/或SCell1在调度PDSCH之前将预调度信息发送给PCell即可。
上面对本发明实施例中信息处理方法进行了描述，下面对本发明实施例中信息处理装置进行描述，该装置用于多载波通信系统中，在所述多载波通信系统中，终端配置有PCC和至少一个SCC，则该终端的下行传输可以通过PCC和至少一个SCC的PDSCH进行。
请参见图6，图6为本发明实施例中信息处理装置一种实施例的模块框图，其中，SCC与PCC位于同一基站。如图6所示，该装置包括：
第一调度模块610，用于调度PCC上的PDSCH进行下行传输，即通过PCC上的PDSCH向终端传输下行数据；
第二调度模块620，用于调度SCC上的PDSCH进行下行传输，即通过 SCC上的PDSCH向终端传输下行数据；
解调模块630，用于利用第一格式和第二格式解调PCC上的PUCCH，以得到终端发送的反馈信息，其中第一格式为用于单服务小区的PUCCH格式，第二格式为用于多服务小区的PUCCH格式。
需要说明的是，以上各个模块可以为单独设立的处理元件，也可以集成在基站的某一个芯片中实现，此外，也可以以程序代码的形式存储于基站的存储器中，由基站的某一个处理元件调用并执行以上各个单元的功能。此外各个单元可以集成在一起，也可以独立实现。这里所述的处理元件可以是一个中央处理器(Central Processing Unit，CPU)，或者是特定集成电路(Application Specific Integrated Circuit，ASIC)，或者是被配置成实施以上方法的一个或多个集成电路，例如：一个或多个微处理器(Digital Signal Processor，DSP)，或，一个或者多个现场可编程门阵列(Field Programmable Gate Array，FPGA)等。
请参见图7，图7为本发明实施例中信息处理装置另一种实施例的模块框图，其中，SCC与PCC位于不同基站，如图7所示，该装置包括：
接口模块710，用于接收SCC所在的第二基站发送的SCC上的PDSCH的预调度信息；
第一调度模块720，用于调度PCC上的PDSCH进行下行传输,即通过PCC上的PDSCH向终端传输下行数据；
解调模块730，用于利用第一格式和第二格式解调PCC上的PUCCH，以得到终端发送的反馈信息，其中第一格式为用于单服务小区的PUCCH格式，第二格式为用于多服务小区的PUCCH格式。
当终端收到的是PCell的调度信息时，则上述反馈信息包括：PCC上的PDSCH下行传输的反馈信息；当终端收到的是PCell的调度信息和SCell的调度信息时，则上述反馈信息包括：PCC上的PDSCH下行传输的反馈信息和SCC上的PDSCH下行传输的反馈信息。
另外，当上述多载波通信系统采用的是双载波聚合时，则第一格式为：Format 1a/1b或Format 2a/2b，第二格式为：Format 1bcs或Format 3；当上述多载波通信系统采用的是三载波或以上聚合时，则第一格式为：Format 1a/1b 或Format 2a/2b，第二格式为：Format 3。具体采用Format 1a/1b或Format 2a/2b，可以根据上行控制信息的内容确定，而在双载波聚合时，采用Format 1bcs或Format 3，可以由基站配置。
需要说明的是，以上接口模块710用于实现与其它基站的通信，例如可以为X2接口模块。其它各个模块可以为单独设立的处理元件，也可以集成在基站的某一个芯片中实现，此外，也可以以程序代码的形式存储于基站的存储器中，由基站的某一个处理元件调用并执行以上各个单元的功能。此外各个单元可以集成在一起，也可以独立实现。这里所述的处理元件可以是一个中央处理器(Central Processing Unit，CPU)，或者是特定集成电路(Application Specific Integrated Circuit，ASIC)，或者是被配置成实施以上方法的一个或多个集成电路，例如：一个或多个微处理器(Digital Signal Processor，DSP)，或，一个或者多个现场可编程门阵列(Field Programmable Gate Array，FPGA)等。
请参见图8，图8为本发明实施例中信息处理装置一个实施例的硬件框图，该装置800位于基站，且该基站用于多载波通信系统中，在该多载波通信系统中，终端配置有PCC和至少一个SCC，则该终端的下行传输可以通过PCC和至少一个SCC的PDSCH进行。如图8所示，该基站包括：
天线801、射频装置802、基带装置803；
天线801与射频装置802连接；且射频装置802通过天线801接收PCC的PUCCH上的反馈信息。且射频装置802将该反馈信息发送给基带装置803。基带装置803用于解调并处理该反馈信息，并依据该反馈信息确定是否进行下行重传。
以上装置800可以位于基带装置803，包括处理器8031和存储器8032。基带装置803例如可以包括至少一个基带板，该基带板上设置有多个芯片，如图8所示，其中一个芯片例如为处理器8031，与存储器8032连接，以调度存储器8032中的程序，执行以上方法实施例中所示的操作。该基带装置803还可以包括接口8033，用于与射频装置802交互信息，该接口例如为通用公共无线接口(common public radio interface，CPRI)。
例如，以上第一调度模块610和第二调度模块620可以通过基带装置803 的一个芯片中实现，解调模块630通过另一个芯片实现，或者，将它们集成在一起，通过一个芯片实现；或者，将它们的功能通过程序代码的形式存储于存储器8032中，通过一个处理器8031调度实现。再如，以上第一调度模块720可以和解调模块分别通过两个芯片实现，也可以通过一个芯片实现；或者，将它们的功能通过程序代码的形式存储于存储器8032中，通过一个处理器8031调度实现；接口8033可以通过设置一个支持X2协议的接口电路实现，当然，当两个基站之间没有X2口时，也可以通过核心网，通过S1口实现，还可以通过无线接口实现，本申请不做任何限制。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统，装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统，装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本发明各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本发 明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以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方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，以上实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。

Claims (11)

  1. 一种信息处理方法，其特征在于，用于多载波通信系统中，在所述多载波通信系统中，终端配置有主成员载波PCC和至少一个辅成员载波SCC，所述方法包括：
    第一基站通过所述PCC上的PDSCH向所述终端传输下行数据，其中所述第一基站为所述PCC所在的基站；
    所述第一基站利用第一格式和第二格式解调所述PCC上的物理上行控制信道PUCCH，以得到所述终端发送的反馈信息，其中所述第一格式为用于单服务小区的PUCCH格式，所述第二格式为用于多服务小区的PUCCH格式。
  2. 根据权利要求1所述的方法，其特征在于，所述SCC与所述PCC位于同一基站，且所述第一基站利用第一格式和第二格式解调所述PCC上的PUCCH之前，所述方法还包括：
    所述第一基站通过所述SCC上的PDSCH向所述终端传输下行数据。
  3. 根据权利要求1所述的方法，其特征在于，所述SCC与所述PCC位于不同基站，且所述第一基站利用第一格式和第二格式解调所述PCC上的PUCCH之前，所述方法还包括：
    所述第一基站接收所述SCC所在的第二基站发送的所述SCC上的PDSCH的预调度信息。
  4. 根据权利要求2或3所述的方法，其特征在于，所述反馈信息包括：所述PCC上的PDSCH下行传输的反馈信息；
    或，
    所述反馈信息包括：所述PCC上的PDSCH下行传输的反馈信息和所述SCC上的PDSCH下行传输的反馈信息。
  5. 根据权利要求1至3任一项所述的方法，其特征在于，所述第一格式包括：Format 1a、Format 1b、Format 2a或Format 2b；
    所述第二格式包括：Format 1bcs或Format 3。
  6. 一种信息处理装置，其特征在于，用于多载波通信系统中，在所述多载波通信系统中，终端配置有主成员载波PCC和至少一个辅成员载波SCC， 所述装置包括：
    第一调度模块，用于通过所述PCC上的PDSCH向所述终端传输下行数据；
    解调模块，用于利用第一格式和第二格式解调所述PCC上的物理上行控制信道PUCCH，以得到所述终端发送的反馈信息，其中所述第一格式为用于单服务小区的PUCCH格式，所述第二格式为用于多服务小区的PUCCH格式。
  7. 根据权利要求6所述的装置，其特征在于，所述SCC与所述PCC位于同一基站，所述装置还包括：
    第二调度模块，用于通过所述SCC上的PDSCH向所述终端传输下行数据。
  8. 根据权利要求6所述的装置，其特征在于，所述SCC与所述PCC位于不同基站，所述装置还包括：
    接口模块，用于接收所述SCC所在的第二基站发送的所述SCC上的PDSCH的预调度信息。
  9. 根据权利要求7或8所述的方法，其特征在于，所述反馈信息包括：所述PCC上的PDSCH下行传输的反馈信息；
    或，
    所述反馈信息包括：所述PCC上的PDSCH下行传输的反馈信息和所述SCC上的PDSCH下行传输的反馈信息。
  10. 根据权利要求6至8任一项所述的方法，其特征在于，所述第一格式包括：Format 1a、Format 1b、Format 2a或Format 2b；
    所述第二格式包括：Format 1bcs或Format 3。
  11. 一种信息处理装置，其特征在于，用于多载波通信系统中，在所述多载波通信系统中，终端配置有主成员载波PCC和至少一个辅成员载波SCC，所述装置包括存储器和处理器，所述存储器存储程序代码，所述处理器调用所述程序代码执行如权利要求1至5任一项所述的方法。
PCT/CN2016/078524 2016-04-06 2016-04-06 一种信息处理方法及装置 WO2017173594A1 (zh)

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