WO2013007153A1 - Procédé, système et dispositif de programmation - Google Patents

Procédé, système et dispositif de programmation Download PDF

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Publication number
WO2013007153A1
WO2013007153A1 PCT/CN2012/078082 CN2012078082W WO2013007153A1 WO 2013007153 A1 WO2013007153 A1 WO 2013007153A1 CN 2012078082 W CN2012078082 W CN 2012078082W WO 2013007153 A1 WO2013007153 A1 WO 2013007153A1
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WIPO (PCT)
Prior art keywords
subframe
downlink
uplink
sif
scheduled
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Application number
PCT/CN2012/078082
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English (en)
Chinese (zh)
Inventor
林亚男
沈祖康
赵锐
Original Assignee
电信科学技术研究院
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Publication of WO2013007153A1 publication Critical patent/WO2013007153A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • 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

Definitions

  • TECHNICAL FIELD The present application relates to the field of wireless communication technologies, and in particular, to a method, system, and device for performing scheduling.
  • Background of the present LTE (Long Term Evolution) system there can be only one carrier in a cell, and the maximum bandwidth is 20 Mhz, as shown in FIG. 1A.
  • the peak rate of the LTE-A system is greatly improved compared to the LTE system.
  • the LTE-A system requires downlink lGbps and uplink 500 Mbps. Obviously, the bandwidth of 20Mhz can no longer meet this demand.
  • a Carrier Aggregation (CA) technology is introduced, that is, a plurality of carriers that are consecutive or discontinuous are grouped together in the same cell, and the UE (User Equipment) is simultaneously served when needed.
  • CA Carrier Aggregation
  • the LTE-A system is a multi-carrier system. In order to ensure that the UE of the LTE-A system can work under each aggregated carrier, each carrier does not exceed 20 Mhz at the maximum.
  • the CA technology of LTE-A is shown in Figure 1B.
  • the base station can perform data transmission with the UE on 4 carriers at the same time to improve system throughput.
  • the FDD (Frequency Division Duplex) and TDD (Time Division Duplex) modes are one radio frame 10ms, which is a subframe lms.
  • TDD uplink/downlink subframe configurations are defined, as shown in Table 1, where D represents a DL subframe, U represents a UL subframe, and S represents a special subframe of the TDD system, for example, Configuration 1 is DSUUDDSUUD.
  • TDD Up/Down Subframe Configuration In the LTE Rel-11 or later system, in order to avoid other TDD systems, LTE cells located in different Bands may use different TDD uplink/downlink subframe configurations, as shown in FIG. 1C.
  • Carrier 1 and carrier 2 are located in Band A
  • carrier 3 is located in Band B
  • cell 1 cell 2, and cell 3 are cells on carrier 1, carrier 2, and carrier 3, respectively.
  • the TDD uplink and downlink configurations of the cell 1 and the cell 2 are the same, and both are configured.
  • the TDD uplink/downlink subframe configuration of the cell 3 is different from that of the cell 1 and the cell 1. If the UE wants to use the three cells for carrier aggregation, a plurality of TDD uplink and downlink configurations may occur in all the aggregated cells of the UE.
  • the DL grant (downlink scheduling signaling) sent by the base station in the PDCCH (Physical Downlink Control Channel) in the downlink subframe n is used to indicate the PDSCH in the downlink subframe n.
  • Downlink Shared Channel the physical downlink shared channel is transmitted.
  • the UE first detects the PDCCH in the downlink subframe n. After the PDCCH is demodulated, the scheduling information corresponding to the PDSCH in the subframe n can be obtained. For the uplink scheduling, the base station will be in the downlink.
  • the uplink UL grant (uplink scheduling signaling) for scheduling the PUSCH transmission in the uplink subframe n+k is transmitted in the PDCCH in the subframe n, and the UE detects the PDCCH in the downlink subframe n, and obtains the PDCCH after performing PDCCH demodulation. Scheduling information corresponding to the PUSCH in frame n+k.
  • the values of 1 to 6, k are shown in Table 1.
  • Table 2 TDD uplink scheduling signaling timing relationship Since there are multiple TDD uplink and downlink configurations in all the aggregated cells of the UE, there are two types of subframes: 1. All the aggregated cells are numbered the same, and the transmission direction is the same. The frame is a non-overlapping subframe. 2. A subframe with the same number in all the aggregated cells and different transmission directions is used as the overlapping subframe. For the non-overlapping subframes, the current scheduling mode may be used, but for the overlapping subframes, since the transmission direction on the scheduled carrier is different from the carrier of the transmission scheduling signaling, the scheduling timing on the carrier according to the transmission scheduling signaling Relationships, overlapping subframes on the scheduled carrier will never be scheduled.
  • a method, system, and device for scheduling are provided for performing cross-carrier scheduling on overlapping subframes after carrier aggregation using different TDD uplink/downlink configurations.
  • the network side device determines, when scheduling, the user equipment that uses the carrier that uses the time division duplex TDD uplink/downlink configuration to perform aggregation, and determines the carrier that is different from the TDD uplink/downlink configuration in the carrier that carries the downlink control information DCI.
  • the subframe indicates the domain SIF;
  • the network side device sends a DCI containing the SIF to the user equipment by using a downlink subframe n in a carrier carrying the DCI;
  • n is an integer not less than 0.
  • the user equipment that is aggregated by using the carrier of the time division duplex TDD uplink/downlink configuration receives the DCI containing the SIF in the downlink subframe n in the carrier carrying the DCI, and the SIF is used to schedule the carrier with the DCI carrying the DCI. Configuring a subframe in a different carrier on the TDD/downlink;
  • the user equipment determines a scheduled subframe in the scheduled carrier according to the SIF.
  • An indication information determining module configured to determine, when scheduling, a user equipment that uses different TDD uplink/downlink configuration aggregation carriers, to schedule a SIF that is different from a carrier that carries a different TDD uplink/downlink configuration in a DCI carrier;
  • a scheduling module configured to send, by using the downlink subframe n in the carrier carrying the DC I, a DCI that includes the SIF to the user equipment;
  • n is an integer not less than 0.
  • a device for scheduling which is configured by using a carrier with different TDD uplink/downlink configurations, includes:
  • a receiving module configured to receive, in a downlink subframe n in a carrier that carries the DCI, a DCI that includes an SIF, where the SIF is configured to schedule a subframe in a carrier different from a TDD uplink/downlink configuration in the carrier that carries the DCI;
  • a subframe determining module configured to determine, according to the SIF, the scheduled subframe in the scheduled carrier.
  • a network side device configured to determine, when scheduling, a user equipment that uses a carrier that uses different time division duplex TDD uplink/downlink configurations to perform scheduling, to schedule a carrier different from a TDD uplink/downlink configuration in a carrier that carries DCI.
  • SIF sending, by the downlink subframe n in the carrier carrying the DCI, a DCI containing the SIF to the user equipment; where n is an integer not less than 0;
  • the downlink subframe n receives the DCI containing the S IF , and determines the scheduled subframe in the scheduled carrier according to the S IF .
  • FIG. 1A is a schematic diagram of a single spectrum system in the background art
  • 1B is a schematic diagram of a spectrum aggregation system in the background art
  • 1C is a schematic diagram of different TDD uplink/downlink subframe configurations in different bands in the background art
  • FIG. 2 is a schematic structural diagram of a system for scheduling according to an embodiment of the present application.
  • FIG. 3 is a schematic structural diagram of a network side device according to an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a user equipment according to an embodiment of the present application.
  • FIG. 5 is a schematic flowchart of a method for scheduling on a network side according to an embodiment of the present application
  • FIG. 6 is a schematic flowchart of a method for processing, by a user equipment, a scheduling on a network side according to an embodiment of the present disclosure
  • FIG. 7 is a schematic diagram of a first downlink scheduling according to an embodiment of the present application.
  • FIG. 8 is a schematic diagram of a second downlink scheduling according to an embodiment of the present application.
  • the network side device in the embodiment of the present application performs DCI (Downlink Control) when performing scheduling on a user equipment that needs to be aggregated by using a carrier with different time division duplex TDD uplink/downlink configurations.
  • the downlink subframe n in the carrier of the information transmits to the user equipment a DCI including an S IF (subframe indication domain) for scheduling a carrier different from the TDD uplink/downlink configuration in the carrier; wherein n is not less than 0 Integer.
  • the system performance and resource utilization are improved by performing cross-carrier scheduling on overlapping subframes after carrier aggregation using different TDD uplink/downlink configurations.
  • the embodiment of the present application may also be applied to non-overlapping subframes for cross-carrier scheduling.
  • the user equipments described below are user equipments that are aggregated using carriers with different TDD uplink/downlink configurations unless otherwise specified. The description is not repeated.
  • the system for scheduling in the embodiment of the present application includes: a network side device 10 and using different time divisions and doubles The user equipment 20 that performs aggregation on the carrier of the TDD uplink/downlink configuration.
  • the network side device 10 is configured to: when scheduling, the user equipment 20 that needs to aggregate the carriers configured with different TDD uplink/downlink configurations, determine an SIF for scheduling a carrier different from the TDD uplink/downlink configuration in the local carrier, by using the bearer
  • the downlink subframe n in the carrier of the DCI sends the DCI containing the SIF to the user equipment; where n is an integer not less than 0; and the user equipment 20 that performs aggregation using carriers of different time division duplex TDD uplink/downlink configurations is used for
  • the DCI containing the SIF is received in the downlink subframe n in the carrier carrying the DCI, and the scheduled subframe in the scheduled carrier is determined according to the SIF.
  • the network side device 10 determines the SIF for scheduling a carrier different from the TDD uplink/downlink configuration in the carrier. Several types are listed below.
  • Bitmap bitmap
  • the network side device 10 sets the value of the corresponding bit in the bi tmap of the subframe to be scheduled, and sets the set bi tmap as the SIF; wherein the bi tmap length is M bits; the DCI containing the SIF is used for scheduling At least one of the downlink sub-frame n and at least one of the M-1 downlink subframes after the downlink subframe n or the scheduling subframe n+k and the M uplink subframes after the subframe n+k Subframe; M and k are positive integers, and M is the maximum number of DCI scheduling subframes;
  • the user equipment 20 determines the scheduled subframe according to the value of the corresponding bit in the subframe in the subframe.
  • the content of the DCI may be used to determine whether to schedule an uplink subframe or a downlink subframe.
  • the TS36.212 protocol refers to the TS36.212 protocol.
  • 5 subframes can be scheduled, that is, the downlink subframe n and the 4 subframes after the downlink subframe n, or the subframes n+k and the 5 uplink subframes after the subframe n+k. .
  • k is the system processing delay.
  • k is 4.
  • the downlink subframe to be scheduled is the downlink subframe n and the fourth downlink subframe after the downlink subframe n, the bi tmap may be 10001;
  • the user equipment 20 After receiving the 10001, the user equipment 20 knows the downlink subframe n and the fourth downlink subframe after the downlink subframe n.
  • the scheduling of the uplink subframe is similar to the scheduling of the downlink subframe, and is not illustrated here.
  • bitmap can indicate multiple subframes. In other words, one DCI can schedule multiple data transfers at the same time.
  • the network side device 10 determines the subframe offset corresponding to the scheduled subframe according to the correspondence between the preset control signaling transmission subframe and the subframe out set of the scheduled subframe, and determines the determined subframe.
  • the offset is used as the SIF; wherein the subframe offset length is N bits; the DCI containing the SIF is used to schedule at least one downlink sub-frame of the downlink subframe n and the 2 N -1 downlink subframes after the downlink subframe n Frame or scheduling subframe n+k and at least one uplink subframe of 2 N uplink subframes after subframe n+k; N and k are positive integers, and 2" is 0 (the maximum number of 1 scheduling subframes;
  • the user equipment 20 determines, according to the correspondence between the DCI transmission subframe and the subframe offset of the scheduled subframe, that the subframe corresponding to the subframe offset is the scheduled subframe.
  • the content of the DCI may be used to determine whether to schedule an uplink subframe or a downlink subframe.
  • the content of the DCI may be used to determine whether to schedule an uplink subframe or a downlink subframe.
  • the TS 36.212 protocol refers to the TS 36.212 protocol.
  • the subframe offset may be an offset from the downlink subframe n; for uplink scheduling, the subframe offset may be the offset of the first uplink subframe after the downlink subframe n+k
  • the amount of the sub-frame offset is not an absolute time relationship, but a corresponding information. For details, refer to S IF mode 4, which is not illustrated here.
  • the subframe offset length is 3 bits
  • 8 subframes can be scheduled, that is, the downlink subframe n and the 7 subframes after the downlink subframe n, or the subframe n+k and the subframe 8 after the n+k Uplink subframes.
  • k is the system processing delay.
  • k is 4.
  • the subframe offset corresponding to the downlink subframe n is 1, and 1 is taken as S IF;
  • the user equipment 20 after receiving the user equipment 20, the user equipment 20 knows to schedule the downlink subframe n+1.
  • the scheduling of the uplink subframe is similar to the scheduling of the downlink subframe, and is not illustrated here.
  • the network side device 10 determines the indication information corresponding to the subframe set formed by the scheduled subframe according to the preset relationship between the preset subframe set and the indication information, and uses the determined indication information as the S IF;
  • the indication information length is Z bits, and the indication information corresponds to 2 Z subframe sets;
  • the user equipment 20 determines, according to the preset relationship between the preset subframe set and the indication information, that the subframe corresponding to the indication information is the scheduled subframe.
  • the content of the DCI may be used to determine whether to schedule an uplink subframe or a downlink subframe.
  • the content of the DCI may be used to determine whether to schedule an uplink subframe or a downlink subframe.
  • the TS 36.212 protocol refers to the TS 36.212 protocol.
  • the length of the indication information may correspond to 8 subframe sets, and there are three subframes: a downlink subframe n, a downlink subframe n+1, and a downlink subframe n+2.
  • the correspondence between the subframe set and the indication information may be
  • the downlink subframe n corresponds to 000; the downlink subframe n+1 corresponds to 001; the downlink subframe n+2 corresponds to 010; the downlink subframe n and the downlink subframe n+1 correspond to 011; the downlink subframe n and the downlink subframe n+2 Corresponding to 100; the downlink subframe n+1 and the downlink subframe n+2 correspond to 101; the downlink subframe n, the downlink subframe n+1, and the downlink subframe n+2 correspond to 111.
  • the downlink subframe n and the downlink subframe ⁇ +2 need to be scheduled, and the correspondence between the subframe set and the indication information is 100 as the S IF;
  • the user equipment 20 After receiving the 100, the user equipment 20 knows to schedule the downlink subframe n and the downlink subframe n+2.
  • the scheduling of the uplink subframe is similar to the scheduling of the downlink subframe, and is not illustrated here. There may be multiple subframes in the subframe set corresponding to one indication information. That is to say, one DCI can schedule multiple data transmissions at the same time.
  • the network side device 10 determines the subframe offset corresponding to the scheduled subframe according to the correspondence between the preset control signaling transmission subframe and the subframe offset of the scheduled subframe, and determines the subframe offset.
  • the subframe offset is used as the SIF; or the indication information corresponding to the subframe set formed by the scheduled subframe is determined according to the preset relationship between the preset subframe set and the indication information, and the determined indication information is used as the SIF.
  • the sum of the subframe offset and the length of the indication information is Y bits.
  • the fourth SIF method is to combine the SIF mode 2 and the SIF mode.
  • 00 indicates that the downlink subframe ⁇ is scheduled, or the first uplink subframe after the subframe n+k (including the subframe n+k) (that is, the first uplink subframe starting from the subframe n+k, if The subframe n+k is an uplink subframe, and the first uplink subframe is a subframe n+k);
  • 01 indicates that the first downlink subframe after the downlink subframe n is scheduled, or the second uplink subframe after the subframe n+k (including the subframe n+k) (ie, starting from the subframe n+k) The second uplink subframe);
  • 00, 01, and 10 are subframe off set, and 11 indicates indication information corresponding to the subframe combination.
  • k is the system processing delay.
  • k is 4.
  • the user equipment 20 determines the subframe to be scheduled according to the received subframe offset or indication information.
  • the network side device 10 increases at least one of the following information to
  • HARQ Hybrid Automatic Repeat ReQues t
  • the network side device 10 adds SIF to some downlink subframes. That is to say, if the transmission position of the scheduling signaling corresponding to each subframe is fixed, the SIF is only increased in the DCI in some fixed subframes.
  • one of the available downlink subframes is closest to the scheduled subframe.
  • the downlink subframe n is the closest available to the uplink subframe that needs to be scheduled.
  • the downlink subframe n is the closest available downlink subframe among the downlink subframes to be scheduled.
  • the closest available downlink subframe includes: the interval between the available downlink subframe n and the scheduled first uplink subframe is at least k subframes, and the subframe n in the scheduled carrier There is no other uplink subframe between +k and the first uplink subframe to be scheduled, where k is the system processing delay.
  • the closest available downlink subframe includes: no other downlink subframe between the available downlink subframe n and the scheduled first downlink subframe n+h in the carrier carrying the DCI, where h is not less than An integer of 0. See Figure 7 for details.
  • the scheduling signaling corresponding to the carrier in the band2 is transmitted on the carrier in the band1, and the scheduling signaling in the downlink subframes 1, 3, and 4 on the band2 is fixed in the downlink subframe 1
  • the scheduling signaling of the uplink and downlink subframes 6, 7, 8, and 9 of the band2 is fixed in the downlink subframe 6 for scheduling. Only need to be in downlink subframe 1 and downlink subframe.
  • SIF is added to the DCI of the scheduling band2 in 6.
  • the downlink subframe 0 in Band2 can be scheduled by the downlink subframe 0 in Band1; the downlink subframe 5 in Band2 can be scheduled by the downlink subframe 5 in Band1.
  • the scheduling of sub-frames in Bandl can be completely reused in the existing scheduling mode. If there are more bands, one band can also be scheduled multiple, and the specific scheduling is configured by the network side.
  • a preferred method for the DC I mode is to: use the downlink subframe 0/1/5/6 to transmit scheduling information. That is, the downlink subframe n is a downlink subframe.
  • the downlink subframe n is the downlink subframe 0 or the downlink subframe 1, and the DCI including the SIF is used to schedule at least one of the downlink subframe 3 and the downlink subframe 4 in the current radio frame; n is a downlink subframe 5 or a downlink subframe 6, and the DCI containing the SIF is used to schedule at least one of the downlink subframe 7, the downlink subframe 8, and the downlink subframe 9 in the current radio frame;
  • the downlink subframe n is the downlink subframe 0 or the downlink subframe 1, and the DCI containing the SIF is used to schedule at least one of the uplink subframe 7, the uplink subframe 8, and the uplink subframe 9 in the current radio frame;
  • the subframe n is the downlink subframe 5 or the downlink subframe 6, and the DCI containing the SIF is used to schedule at least one of the uplink subframe 3 and the uplink subframe 4 in the next radio frame; or for the uplink scheduling, the downlink subframe n Is the downlink subframe 0, the DCI containing the SIF is used to schedule the uplink subframe 4 in the current radio frame;
  • the downlink subframe n is the downlink subframe 1, and the DCI containing the SIF is used to schedule the uplink subframe 7 in the current radio frame or Upstream subframe 8;
  • downlink subframe n is downlink subframe 5, DCI containing S IF is used to schedule uplink subframe 9 in the current radio frame;
  • the bi tmap can be padded with a value indicating no scheduling, such as 0.
  • S IF mode 3 and downlink subframe 4 there are three subframe sets, namely, downlink subframe 3; downlink subframe 4; downlink subframe 3 and downlink subframe 4.
  • the downlink subframe 7, the downlink subframe 8, and the downlink subframe 9 have a 7-subframe set.
  • DCI mode 2 The network side device 10 adds S IF to all downlink subframes. That is to say, the working time range of each DCI scheduling is fixed, and the DCI in all subframes is increased by S IF.
  • the DCI containing the S IF is used to schedule the downlink subframe n and the X-1 downlink subframes after the downlink subframe n, or the scheduling subframe n+k and the X uplink subframes after the subframe n+k.
  • k is 4. See Figure 8 for details.
  • the downlink subframe 1 can schedule the downlink subframe 1, the downlink subframe 2, the downlink subframe 3, and the downlink subframe 4 of the band2.
  • the downlink subframe 4 on band2 can be scheduled by the downlink subframe 0 on band1 or the downlink subframe 1 on band1.
  • the same subframe can be scheduled, which can be due to two ways:
  • the UE always considers the last DCI on the timing relationship to be a valid schedule
  • the base station does not allow repeated scheduling. For example, if it is scheduled by the downlink subframe 0, there is also a S IF in the DCI of the downlink subframe 1, but the downlink subframe 4 on the band 2 is not scheduled.
  • FIG. 7 and FIG. 8 are described by taking TDD uplink/downlink configurations 0 and 5 as an example, and other configurations are similar to those of FIGS. 7 and 8, and are not described herein again.
  • the above-mentioned subframe n+k may be an uplink subframe or a downlink subframe.
  • the network side can determine whether to schedule the subframe n+k according to the transmission direction of the subframe n+k.
  • the S IF mode and the DCI mode which are specifically used by the network side device 10 and the user equipment 20, need to be consistent, which may be specified in the protocol, or may be notified by the network side to the S IF mode and the DCI mode used by the user equipment 20. .
  • the user equipment, the network side device, and the method for scheduling are also provided in the embodiment of the present application. Since the principles of solving the problem are similar to the system for scheduling, the implementation of the devices and methods is implemented. See the implementation of the system, and the details are not repeated here.
  • the network side device in this embodiment of the present application includes: an indication information determining module 300 and a scheduling module 310.
  • the indication information determining module 300 is configured to determine, when scheduling, a user equipment that uses different TDD uplink/downlink configuration aggregations, to schedule a S IF for using a carrier different from the TDD uplink/downlink configuration in the carrier;
  • the scheduling module 310 is configured to send, by using the downlink subframe n in the carrier that carries the DCI, the S IF to the user equipment.
  • n is an integer not less than 0.
  • the indication information determining module 300 sets the value of the corresponding bit position of the subframe to be scheduled in the bit bitmap b i tmap, and sets the set b i tmap as S IF;
  • the length of the bi tmap is M bits; the DCI containing the S IF is used to schedule at least one downlink sub-frame or the scheduling sub-frame n+k of the M-1 downlink subframes after the downlink subframe n and the downlink subframe n and At least one of the M uplink subframes after the subframe n+k; M and k are positive integers, and M is the maximum number of DCI scheduling subframes.
  • the indication information determining module 300 determines the subframe offset corresponding to the scheduled subframe according to the correspondence between the preset control signaling transmission subframe and the subframe offset Subf rame off set of the scheduled subframe. Quantity, and determine the determined subframe offset as S IF;
  • the subframe offset length is N bits; the DCI containing the S IF is used to schedule at least one downlink subframe or scheduling subframe in the downlink subframe n and the 2 N ⁇ 1 downlink subframes after the downlink subframe n n+k and at least one uplink subframe in 2" uplink subframes after subframe n+k; N and k are positive integers, and 2" is 0 (the maximum number of 1 scheduling subframes).
  • the indication information determining module 300 determines the indication information corresponding to the subframe set formed by the scheduled subframe according to the preset relationship between the preset subframe set and the indication information, and uses the determined indication information as the S IF. ;
  • the indication information length is Z bits, and the indication information corresponds to 2 Z subframe sets.
  • the indication information determining module 300 determines the subframe offset corresponding to the scheduled subframe according to the correspondence between the preset control signaling transmission subframe and the subframe offset of the scheduled subframe, and Determining the determined subframe offset as the S IF; or determining the indication information corresponding to the subframe set formed by the scheduled subframe according to the preset correspondence between the preset subframe set and the indication information, and determining the indication Information as SIF;
  • the sum of the subframe offset and the length of the indication information is Y bits.
  • the indication information determining module 300 uses at least one of a HARQ process number, redundancy version information, a modulation and coding level, and new data indication information as the S IF.
  • the indication information determining module 300 adds S IF to a portion of the downlink subframe.
  • the downlink subframe n is an available downlink subframe that is closest to the uplink subframe to be scheduled; when the downlink subframe needs to be scheduled, the downlink subframe n is a downlink subframe that needs to be scheduled. The closest available downlink subframe in the frame.
  • the closest available downlink subframe comprises: For uplink scheduling, the interval between the available downlink subframe n and the scheduled first uplink subframe is at least k subframes, and the subframe n in the scheduled carrier There is no other uplink subframe between +k and the first uplink subframe to be scheduled, where k is the system processing delay.
  • h is an integer not less than 0.
  • the downlink subframe n is one of a downlink subframe 0, a downlink subframe 1, a downlink subframe 5, and a downlink subframe 6.
  • the downlink subframe n is the downlink subframe 0 or the downlink subframe 1, and the DCI with the S IF is used.
  • the downlink subframe n is the downlink subframe 5 or the downlink subframe 6, and the DCI containing the SIF is used to schedule the downlink subframe 7 in the current radio frame.
  • the downlink subframe n is the downlink subframe 0 or the downlink subframe 1, and the DCI containing the SIF is used to schedule at least one of the uplink subframe 7, the uplink subframe 8, and the uplink subframe 9 in the current radio frame;
  • the subframe n is the downlink subframe 5 or the downlink subframe 6, and the DCI containing the SIF is used to schedule at least one of the uplink subframe 3 and the uplink subframe 4 in the next radio frame; or
  • the downlink subframe n is the downlink subframe 0
  • the DCI containing the SIF is used to schedule the uplink subframe 4 in the current radio frame
  • the downlink subframe n is the downlink subframe 1
  • the DCI containing the SIF is used to schedule the wireless
  • the downlink subframe n is the downlink subframe 5
  • the DCI containing the SIF is used to schedule the uplink subframe 9 in the current radio frame
  • the downlink subframe n is the downlink subframe 6
  • the DCI containing the SIF is used to schedule the uplink subframe 3 in the next radio frame.
  • the indication information determining module 300 adds S I F in all downlink subframes.
  • the DCI containing the SIF is used to schedule the downlink subframe n and the M-1 downlink subframes after the downlink subframe n, or the scheduling subframe n+k and the M uplink subframes after the subframe n+k. ;
  • M is the maximum number of scheduling subframes and k is the system processing delay.
  • the network side device in the embodiment of the present application may be a base station (such as a macro base station, a home base station, etc.), or may be an RN (successor) device, or may be another network side device.
  • a base station such as a macro base station, a home base station, etc.
  • RN RN (successor) device
  • the user equipment in the embodiment of the present application is aggregated by using carriers of different TDD uplink/downlink configurations, and specifically includes: a receiving module 400 and a subframe determining module 410.
  • the receiving module 400 is configured to receive the DCI containing the SIF in the downlink subframe n in the carrier carrying the DCI;
  • the subframe determining module 410 is configured to determine, according to the SIF, the scheduled subframe in the scheduled carrier.
  • the subframe determining module 410 determines the scheduled subframe according to the value of the corresponding bit of the subframe in the bi tmap.
  • the subframe determining module 410 determines, according to the correspondence between the DCI transmission subframe and the subframe offset of the scheduled subframe, that the subframe corresponding to the subframe offset is The scheduled subframe.
  • the subframe determining module 410 determines, according to the preset relationship between the preset subframe set and the indication information, that the subframe corresponding to the indication information is the scheduled subframe.
  • the method for scheduling on the network side of the embodiment of the present application includes the following steps:
  • Step 501 The network side device determines, when scheduling, user equipments that use different TDD uplink/downlink configuration carriers to schedule SIFs for scheduling carriers different from the TDD uplink/downlink configuration in the carrier;
  • Step 502 The network side device sends the DCI containing the SIF to the user equipment by using the downlink subframe n in the carrier carrying the DCI.
  • the network side device determines a method for scheduling the SIF of the carrier different from the TDD uplink/downlink configuration in the carrier, and several types are listed below.
  • the network side device sets the value of the corresponding bit in the bi tmap of the subframe to be scheduled, and sets the set bi tmap as the SIF; wherein the length of the bi tmap is M bits; the DCI with the SIF is used to schedule the downlink At least one of the M-1 downlink subframes after the subframe n and the downlink subframe n or the scheduling subframe n+k and at least one uplink subframe of the M uplink subframes after the subframe n+k M; and M are positive integers, and M is the maximum number of DCI scheduling subframes.
  • the user equipment determines the scheduled subframe according to the value of the corresponding bit in the bi tmap of the subframe.
  • the content of the DCI may be used to determine whether to schedule an uplink subframe or a downlink subframe.
  • the content of the DCI may be used to determine whether to schedule an uplink subframe or a downlink subframe.
  • the TS36.212 protocol refers to the TS36.212 protocol.
  • k is the system processing delay.
  • k is 4.
  • the scheduling of the uplink subframe is similar to the scheduling of the downlink subframe, and is not illustrated here.
  • bitmap can indicate multiple subframes. In other words, one DCI can schedule multiple data transfers at the same time.
  • the network side device determines, according to a preset correspondence between the preset control signaling transmission subframe and the subframe out set of the scheduled subframe, the subframe offset corresponding to the scheduled subframe, and offsets the determined subframe.
  • the shift amount is used as the SIF; wherein the subframe offset length is N bits; the DCI containing the SIF is used to schedule the downlink subframe n and at least one downlink subframe of the 2 N -1 downlink subframes after the downlink subframe n Or scheduling subframe n+k and at least one uplink subframe of 2 N uplink subframes after subframe n+k; N and k are positive integers, and 2" is 0 (the maximum number of 1 scheduling subframes).
  • the content of the DCI may be used to determine whether to schedule an uplink subframe or a downlink subframe.
  • the content of the DCI may be used to determine whether to schedule an uplink subframe or a downlink subframe.
  • the TS36.212 protocol refers to the TS36.212 protocol.
  • k is the system processing delay.
  • k is 4.
  • the network side device determines the indication information corresponding to the subframe set formed by the scheduled subframe according to the preset relationship between the preset subframe set and the indication information, and uses the determined indication information as the SIF;
  • the information length is Z bits, and the indication information corresponds to 2 Z subframe sets.
  • the content of the DCI may be used to determine whether to schedule an uplink subframe or a downlink subframe.
  • the content of the DCI may be used to determine whether to schedule an uplink subframe or a downlink subframe.
  • the TS36.212 protocol refers to the TS36.212 protocol.
  • a DCI can be the same Schedule multiple data transfers.
  • the network side device determines, according to a preset correspondence between the preset control signaling transmission subframe and the subframe offset of the scheduled subframe, the subframe offset corresponding to the scheduled subframe, and determines the determined The subframe offset is used as the SIF; or the indication information corresponding to the subframe set formed by the scheduled subframe is determined according to the preset relationship between the preset subframe set and the indication information, and the determined indication information is used as the SIF; The sum of the subframe offset and the length of the indication information is a ⁇ bit.
  • the network side device adds at least one of the following information to the SIF:
  • HARQ process number redundancy version information, modulation coding level, and new data indication information.
  • one of the available downlink subframes is closest to the scheduled subframe.
  • the downlink subframe n is the available downlink subframe that is closest to the uplink subframe that needs to be scheduled;
  • the downlink subframe n is the closest available downlink subframe among the downlink subframes to be scheduled.
  • the closest available downlink subframe includes: the interval between the available downlink subframe n and the scheduled first uplink subframe is at least k subframes, and the subframe n in the scheduled carrier There is no other uplink subframe between +k and the first uplink subframe to be scheduled, where k is the system processing delay.
  • the closest available downlink subframe includes: no other downlink subframe between the available downlink subframe n and the scheduled first downlink subframe n+h in the carrier carrying the DCI, where h is not less than An integer of 0. See Figure 7 for details.
  • a preferred method for the DC I mode is to: use the downlink subframe 0/1/5/6 to transmit scheduling information. That is, the downlink subframe n is a downlink subframe.
  • the downlink subframe n is the downlink subframe 0 or the downlink subframe 1, and the DCI with the SIF is used.
  • the downlink subframe n is the downlink subframe 5 or the downlink subframe 6, and the DCI containing the SIF is used to schedule the downlink subframe 7 in the current radio frame.
  • the downlink subframe n is the downlink subframe 0 or the downlink subframe 1, and the DCI containing the SIF is used to schedule at least one of the uplink subframe 7, the uplink subframe 8, and the uplink subframe 9 in the current radio frame;
  • the subframe n is the downlink subframe 5 or the downlink subframe 6, and the DCI containing the SIF is used to schedule at least one of the uplink subframe 3 and the uplink subframe 4 in the next radio frame; or for the uplink scheduling, the downlink subframe n Is the downlink subframe 0, the DCI containing the SIF is used to schedule the uplink subframe 4 in the current radio frame;
  • the downlink subframe n is the downlink subframe 1, and the DCI containing the SIF is used to schedule the uplink subframe 7 in the current radio frame or Upstream subframe 8;
  • downlink subframe n is downlink subframe 5, DCI containing S IF is used to schedule uplink subframe 9 in the current radio frame;
  • the DCI containing the SIF is used to schedule the downlink subframe n and the X-1 downlink subframes after the downlink subframe n, or the scheduling subframe n+k and the X uplink subframes after the subframe n+k.
  • X is the maximum number of scheduling subframes and k is the system processing delay.
  • k is 4. See Figure 8 for details.
  • one band can also be scheduled multiple, and the specific scheduling is configured by the network side.
  • the SIF mode and the DCI mode that are specifically used by the network side device and the user equipment need to be consistent, which may be specified in the protocol, or may be notified by the network side to the SIF mode and the DCI mode used by the user equipment.
  • the method for the user equipment to process the scheduling on the network side in the embodiment of the present application includes the following steps: Step 601: The user equipment that is aggregated by using the carrier of the time-division duplex TDD uplink/downlink configuration is in the carrier carrying the DCI. Receiving a DCI containing SIF in the downlink subframe n;
  • Step 602 The user equipment determines, according to the SIF, the scheduled subframe in the scheduled carrier.
  • the user equipment determines the scheduled subframe according to the value of the corresponding bit in the bi tma.
  • the user equipment determines, according to the correspondence between the DCI transmission subframe and the subframe offset of the scheduled subframe, the subframe corresponding to the subframe offset is The scheduled subframe.
  • the user equipment determines, according to the preset relationship between the preset subframe set and the indication information, that the subframe corresponding to the indication information is the scheduled subframe.
  • FIG. 5 and FIG. 6 can synthesize a process to form a method for transmitting feedback information, that is, performing steps first.
  • Step 501 and step 502 and then performing step 601 and step 602.
  • embodiments of the present application can be provided as a method, system, or computer program product. Therefore, the present application may employ an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. The form of the case. Moreover, the application can be in the form of a computer program product embodied on one or more computer-usable storage interfaces (including but not limited to disk storage, CD-ROM, optical storage, etc.) in which computer usable program code is embodied.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.
  • the carrier aggregation of the overlapping subframes can be performed for carrier aggregation using different TDD uplink/downlink configurations, system performance and resource utilization are improved.

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

Abstract

Dans ses modes de réalisation, la présente invention se rapporte à un procédé, à un système et à un dispositif de programmation. L'invention appartient au domaine technique de la communication sans fil. De façon plus spécifique, le procédé, le système et le dispositif de programmation selon l'invention sont adaptés pour exécuter une programmation inter-porteuses sur des sous-trames en chevauchement après que des porteuses utilisant des configurations TDD différentes sur la liaison montante/sur la liaison descendante ont été agrégées. Le procédé selon l'un des modes de réalisation de la présente invention comprend les étapes suivantes : quand un dispositif sur le côté réseau doit exécuter une programmation sur un équipement d'utilisateur qui agrège des porteuses utilisant des configurations TDD différentes sur la liaison montante/sur la liaison descendante, le dispositif sur le côté réseau détermine une SIF utilisée pour programmer une porteuse avec une configuration TDD sur la liaison montante/sur la liaison descendante qui est différente de celle de la porteuse en cours ; et le dispositif sur le côté réseau envoie à l'équipement d'utilisateur des DCI contenant la SIF par le biais d'une sous-trame n sur la liaison descendante dans une porteuse utilisée pour transporter des données de contrôle sur la liaison descendante (DCI), n étant un nombre entier supérieur ou égal à 0. Après que des porteuses utilisant des configurations TDD différentes sur la liaison montante/sur la liaison descendante ont été agrégées, une programmation inter-porteuses est exécutée sur des sous-trames en chevauchement. La solution technique de la présente invention permet ainsi d'améliorer les performances du système ainsi que l'utilisation des ressources du système.
PCT/CN2012/078082 2011-07-08 2012-07-03 Procédé, système et dispositif de programmation WO2013007153A1 (fr)

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