WO2014008795A1 - Procédé et terminal pour l'établissement de rapports csi périodiques - Google Patents

Procédé et terminal pour l'établissement de rapports csi périodiques Download PDF

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Publication number
WO2014008795A1
WO2014008795A1 PCT/CN2013/076996 CN2013076996W WO2014008795A1 WO 2014008795 A1 WO2014008795 A1 WO 2014008795A1 CN 2013076996 W CN2013076996 W CN 2013076996W WO 2014008795 A1 WO2014008795 A1 WO 2014008795A1
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Prior art keywords
csi information
periodic csi
bit threshold
priority
conflicting
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PCT/CN2013/076996
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English (en)
Chinese (zh)
Inventor
陈文洪
彭莹
高秋彬
张然然
倪浩
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电信科学技术研究院
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Publication of WO2014008795A1 publication Critical patent/WO2014008795A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0027—Scheduling of signalling, e.g. occurrence thereof

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a periodic CSI method and a terminal. Background technique
  • LTE-A Long-Term Evolution-Advanced
  • the terminal User Equipment
  • the CoMP Coordinatd Multiple Point
  • the current multi-point coordinated transmission scheme can be roughly divided into: DPS (Dynamic Point Selection), CBF (Coordinated Beam Forming), JT (Joint Transmission), or the above three types of transmission.
  • DPS Dynamic Point Selection
  • CBF Coordinatd Beam Forming
  • JT Joint Transmission
  • a hybrid solution for the program For example, in combination with DPS and CBF, the primary transmission point is determined by dynamic selection, and cooperative beamforming is achieved by joint scheduling with coordinated transmission points outside the primary transmission point. At the same time, it is also possible to reduce the interference to other transmission points by allowing some transmission points to be vacated on certain time-frequency resources, thereby achieving flexible frequency-domain interference coordination. This type of technology is called DB (Dynamic). Blanking, dynamic blank).
  • a transmission mode may include multiple transmission schemes to support mode switching between various transmission schemes. In order to better ensure transmission performance and system stability, transmission modes supporting CoMP transmission often need to support switching to single-point transmission.
  • the system can configure different CSI-RS (Channel State Information-Reference Signals) so that the terminal can measure the downlink channels of each transmission point.
  • CSI-RS Channel State Information-Reference Signals
  • Each transmission point corresponds to one CSI-RS resource. It is worth noting that the transmission point can be a physical transmission point, but can be a virtual transmission point, and each virtual transmission point is composed of one or more physical transmission points.
  • CSI Channel State Information
  • Various transmission schemes require corresponding channel state information support.
  • the DPS transmission scheme requires channel state information of multiple transmission points, or channel state information of a certain transmission point and CSI-RS index information corresponding to the transmission point.
  • the DPS transmission scheme combined with DB technology requires a variety of channel shields under the assumption of interference Information.
  • the JT transmission scheme requires multiple transmission points to feed back channel state information of the same Rank (rank) and the like.
  • LTE Long-Term Evolution
  • two types of CSI feedback modes are supported. That is, periodic CSI feedback based on PUCCH (Physical Uplink Control Channel) and aperiodic CSI feedback based on PUSCH (Physical Uplink Shared Channel).
  • PUCCH-based periodic CSI feedback includes four types of reporting modes: mode 1-0, mode 2-0, mode 1-1, and mode 2-1.
  • PUCCH-based periodic CSI feedback includes 1, la, 2, 2a, 2b, 2c, 3, 4, 5, and 6 total of 10 reporting types.
  • Modes 1-1 and 2-1 support CSI feedback including PMI (Precoding Matrix Indicator), and modes 1-0 and 2-0 support CSI feedback without PMI feedback.
  • PMI Precoding Matrix Indicator
  • Type 2 For configurations with 2 or 4 antenna ports, there are 2 reporting types, Type 2 and Type 3.
  • Type2 is used for Wideband (Phase Broadband) PMI/CQI (Channel Quality Indicator).
  • Tpye3 is used for RI (Lead Indicator).
  • mode 1-1 includes two sub-modes, sub-mode 1 and sub-mode 2.
  • Mode 1-1 Submode 1 There are 2 reporting types, namely Type 2b and Type 5. Among them, Type2b is used for feedback wideband CQI/wideband second PMI, and Type5 is used for feedback RI/broadband first PMI.
  • Mode 1-1 Submode 2 there are 2 reporting types, namely Type 2c and Type 3. Among them, Type2c is used for feedback broadband CQI/broadband first PMI/broadband second PMI. Type 3 is used to feed back the RI.
  • Type 1 is used for Sub-band (feedback subband) CQI
  • Type 2 is used for feedback wideband PMI/CQI
  • Type 3 is used for feedback RI.
  • the reporting type is different according to the PTI (Precoder Type Indicator). Specifically:
  • Type 2b is used for feedback wideband CQI/wideband second PMI
  • Type 2a is used for feedback broadband first PMI
  • Type 6 is used for feedback RI/PTI
  • Type la is used for feedback subband CQI/subband second PMI
  • Type 2b is used for feedback wideband CQI/wideband second PMI
  • Type6 is used for feedback RI/PTI
  • Type 4 There is a reporting type, ie, Type 4, which is used to feed back broadband CQI, where the moment is:
  • the frame number, the slot number, ⁇ and ⁇ d are high-level configuration parameters, which respectively represent the subframe offset and the last 4 ⁇ period at 4 ⁇ on the wideband CQI.
  • Type1 is used for feedback subband CQI
  • Type4 is used for feedback wideband CQI.
  • the terminal configures the reporting period for the CSIs of different transmission points or the interference assumptions, and independently reports them according to their respective reporting periods. If the CSIs of different transmission points or interference assumptions are reported at the same time, the PUCCH resources used by them will collide.
  • the existing solution is to combine these conflicting CSIs according to the reporting type priority within the maximum load range that the PUCCH can bear. If the combined load of all CSIs is greater than the maximum load that the PUCCH can bear, the CSI with lower reporting type priority is not fed back.
  • the bit threshold is the maximum load that the PUCCH can withstand.
  • the demodulation threshold and transmission performance requirements of CSI information for different periods of combined transmission are different. If the CSI information of different periods is combined according to the maximum number of bits that can be carried by the PUCCH, the transmission performance requirement of the periodic CSI information with high accuracy requirements cannot be met, and the base station may not be able to obtain accurate periodic CSI information. Summary of the invention
  • An object of the present invention is to provide a periodic CSI reporting method and a terminal to solve the problem that the base station cannot obtain accurate periodic CSI information because the transmission performance requirement of the periodic CSI information cannot be met.
  • a periodic CSI reporting method if at least two periods of CSI information need to be reported at the same reporting time, the at least two periodic CSI information conflicts, the method includes:
  • the terminal #> determines the bit threshold of the periodic CSI information combining according to the CSI information of the conflicting period; the terminal is in a predetermined priority rule, and sorts the CSI information of the conflicting period;
  • the terminal is in descending order of priority of the CSI information of the conflicting period Selecting at least one period CSI information from the conflicting periodic CSI information;
  • the terminal selects the selected period CSI information at the last 4 ⁇ time.
  • a terminal if at least two periods of CSI information need to be reported at the same reporting time, the at least two periodic CSI information conflicts, the terminal includes:
  • a bit threshold determining module configured to calculate the period CSI information of the conflicting period, and determine a bit threshold of the periodic CSI information combining
  • a periodic CSI information sorting module configured to sort the conflicting CSI information according to a predetermined priority rule
  • a selection module configured to select at least one period CSI information from the conflicting period CSI information according to the priority descending order of the conflicting period CSI information within the range of the bit threshold;
  • the periodic CSI information reporting module is configured to report the selected periodic CSI information at the reporting time.
  • the determined bit threshold of the combined periodic CSI information is determined by the periodic CSI information of the conflicting, and the uplink CSI information of the combined transmission can satisfy the transmission requirement, and as many as possible.
  • CSI information is determined by the periodic CSI information of the conflicting.
  • FIG. 1 is a flowchart of a method according to a first embodiment of the present invention
  • FIG. 2 is a flowchart of a method according to a second embodiment of the present invention.
  • FIG. 3 is a flowchart of a method according to a third embodiment of the present invention.
  • FIG. 4 is a flowchart of a method according to a fourth embodiment of the present invention.
  • FIG. 5 is a flowchart of a method according to a fifth embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of another terminal according to an embodiment of the present invention. detailed description
  • Embodiments of the present invention provide a periodic CSI method and a terminal.
  • the UE determines the bit threshold of the periodic CSI information combining according to the conflicting periodic CSI information. And sorting the periodic CSI information of the conflict according to the predetermined priority rule; and further, in the range of the bit threshold, selecting the partial periodic CSI information according to the priority descending order of the conflicting periodic CSI information for the combined reporting.
  • the determined bit threshold of the combined CSI information is determined according to the conflicting periodic CSI information, and the CSI information can satisfy the transmission in the period of ensuring the combined transmission. On the premise of the request, report the periodic CSI information as much as possible.
  • the multiple periodic CSI information is combined and reported at the same reporting time, that is, the multiple periodic CSI information is merged in the PUCCH in the same subframe.
  • the periodic CSI reporting method is implemented as shown in FIG. 1 .
  • the indication includes the following operations:
  • Step 100 The UE determines a bit threshold for combining the periodic CSI information according to the periodic CSI information of the collision.
  • Step 120 The UE follows the period in which the collision occurs within the range of the bit threshold of the period CSI information combination.
  • the priority descending order of the CSI information selects at least one period CSI information from the above-mentioned conflicting period CSI information.
  • the UE selects the most periodic CSI information in the range of the bit threshold of the combined CSI information from the conflicting periodic CSI information according to the priority descending order of the conflicting CSI information.
  • the total size of the first N periods of CSI information exceeds the bit threshold of the periodic CSI information combination, and the first N-1 period CSI information is selected.
  • Step 130 The UE reports the selected period CSI information at the reporting time.
  • the UE If the selected period CSI information exceeds one, the UE combines the selected periodic CSI information in descending order of priority and reports the result at the reporting time.
  • the combined period CSI information is not longer than the bit threshold of the periodic CSI information merge.
  • a plurality of bit thresholds and bit threshold determination rules are preset on the UE side by using a pre-agreed agreement between the UE and the base station, or a configuration of the UE by the base station or a high-level signaling indication.
  • the UE can determine the specific implementation manner of the bit threshold of the periodic CSI information combining according to the periodic CSI information of the collision, and the following are exemplified.
  • the UE side presets the first bit threshold and the second bit threshold, and presets the corresponding bit threshold to determine the following rules: If the conflicting periodic CSI information includes RI information, the first bit threshold is used; If the RI information is not included in the periodic CSI information, the second bit threshold is used.
  • the first bit threshold is smaller than the second bit threshold, and the values of the first bit threshold and the second bit threshold may be set according to actual requirements of the system, which is not limited in the embodiment of the present invention.
  • the value of the first bit threshold may be set according to the transmission performance requirement of the RI information, and the second bit threshold is determined according to the maximum number of bits that the PUCCH can carry.
  • the UE determines a bit threshold for combining the periodic CSI information according to whether the RI information is included in the CSI information of the period in which the collision occurs. specifically: Determining, by the UE, whether the RI information is included in the periodic CSI information of the conflict;
  • the UE determines that the first bit threshold is a bit threshold for combining the periodic CSI information; if the RI information is not included, the UE determines that the second bit threshold is a bit threshold for combining the periodic SCI information.
  • the UE side presets multiple bit thresholds, and each bit threshold corresponds to a different reporting type priority.
  • the preset bit threshold is determined according to the correspondence between the bit threshold and the reporting type priority.
  • the bit threshold for the CSI information merge.
  • the UE determines the bit threshold of the periodic CSI information combining according to the priority of the reporting type of the CSI information in each period of the CSI information in which the collision occurs.
  • the bit threshold preset on the UE side, and the different reporting type priority corresponding to each bit threshold are as follows: According to the agreement between the UE side and the base station side, or the configuration on the base station side, or the high layer signaling indication, reporting type 1, la, 2, 2a, 2b, 2c, 3, 4, 5, and 6 are divided into three reporting type priority levels. Among them, the highest reporting type priority includes: reporting type 3, 5, 6, and 2a, and the second highest reporting type priority includes: reporting type 2, 2b, 2c, and 4. The lowest reporting type priority includes reporting type 1 and la.
  • the highest reporting type priority corresponds to the bit threshold A
  • the second highest reporting type priority corresponds to the bit threshold B
  • the lowest reporting type priority corresponds to the bit threshold C.
  • the bit threshold of the CSI information combination specifically includes:
  • the UE determines that the bit threshold A is the bit threshold of the periodic CSI information combining.
  • the UE determines that the bit threshold B is a periodic CSI information merge. Bit threshold.
  • the UE determines that the bit threshold C is the bit threshold of the periodic CSI information combining.
  • the UE side presets the third bit threshold and the fourth bit threshold, and presets the corresponding bit threshold to determine the following rules: If the periodic CSI information of the conflict has the periodic CSI information corresponding to the primary transmission point, the corresponding Three-bit threshold. If there is no periodic CSI information corresponding to the primary transmission point in the CSI information of the collision period, the fourth bit threshold is corresponding.
  • the third bit threshold is smaller than the fourth bit threshold, and the values of the third bit threshold and the fourth bit threshold may be set according to actual requirements of the system, which is not limited by the present invention.
  • the value of the third bit threshold may be set according to the transmission performance requirement of the periodic CSI information corresponding to the primary transmission point, and the fourth bit threshold is determined according to the maximum number of bits that the PUCCH can carry.
  • the UE determines a bit threshold for combining the periodic CSI information according to the transmission point corresponding to the period CSI information in which the collision occurs. specifically: The UE determines whether there is periodic CSI information corresponding to the primary transmission point in the CSI information that conflicts; if yes, the UE determines that the third bit threshold is a bit threshold of the periodic CSI information combination;
  • the UE determines that the fourth bit threshold is a bit threshold for the periodic CSI information combining.
  • the UE side is preset with a fifth bit threshold and a sixth bit threshold, and the rule for determining the corresponding bit threshold is as follows: If the periodic CSI information of the conflict has the periodic CSI information corresponding to the serving cell of the UE, Corresponds to the fifth bit threshold. If there is no periodic CSI information corresponding to the serving cell of the UE in the CSI information of the collision, the sixth bit threshold is corresponding.
  • the fifth bit threshold is smaller than the sixth bit threshold, and the values of the fifth bit threshold and the sixth bit threshold may be set according to actual requirements of the system, which is not limited in the present invention.
  • the value of the fifth bit threshold may be set according to the transmission performance requirement of the periodic CSI information corresponding to the serving cell of the UE, and the sixth bit threshold is determined according to the maximum number of bits that the PUCCH can carry.
  • the UE determines a bit threshold for combining the periodic CSI information according to the serving cell corresponding to the CSI information of the period in which the collision occurs. specifically:
  • the UE determines whether there is periodic CSI information corresponding to the serving cell of the UE in the conflicting CSI information;
  • the UE determines that the fifth bit threshold is a bit threshold for combining the periodic CSI information
  • the UE determines the sixth bit threshold as the bit threshold for the periodic CSI information combining.
  • the UE side presets the seventh bit threshold and the eighth bit threshold, and presets the corresponding bit threshold to determine the following rules: If there is a periodic CSI information corresponding to the primary carrier in the CSI information of the conflicting period, the corresponding Seven-bit threshold. If there is no periodic CSI information corresponding to the primary carrier in the CSI information of the conflicting period, the eighth bit threshold is corresponding.
  • the seventh bit threshold is less than the eighth bit threshold, and the values of the seventh bit threshold and the eighth bit threshold may be set according to actual requirements of the system, which is not limited by the present invention.
  • the value of the seventh bit threshold may be set in the transmission performance requirement of the periodic CSI information corresponding to the primary carrier, and the eighth bit threshold is determined according to the maximum number of bits that the PUCCH can carry.
  • the UE determines the bit threshold of the CSI information combining period according to the carrier corresponding to the CSI information. specifically:
  • the UE determines whether there is periodic CSI information corresponding to the primary carrier in the conflicting CSI information
  • the UE determines that the seventh bit threshold is a bit threshold for combining the periodic CSI information
  • the UE determines that the eighth bit threshold is a bit threshold for the periodic CSI information combining.
  • the actual requirements of the system are selected to determine the bit threshold of the periodic CSI information combination.
  • the periodic CSI information can also be determined according to other rules. It suffices to select one of a plurality of preset bit thresholds as the bit threshold used for the current period CSI information combining according to the periodic CSI information of the collision, and all fall within the protection scope of the present invention. If the first or second manner described above is used, the bit threshold of the periodic CSI information combination is determined. Then, the specific implementation manner of the step 110 may be: the UE sorts the conflicting periodic CSI information according to the reporting type priority rule of the predetermined periodic CSI information.
  • the reporting type priority rule of the predetermined periodic CSI information may be: for the periodic CSI information corresponding to the same transmission point (or interference assumption, or carrier), the reporting type 3, 5, 6 has a high priority.
  • reporting type 1 la, 2, 2a, 2b, 2c, 4.
  • reporting types3, 5, 6, 2a have the highest priority
  • reporting type 2, 2b, 2c, 4 has the highest priority
  • reporting type 1 La has the lowest priority.
  • the UE sorts the CSI information of the conflicting period according to the feedback type priority rule of the CSI information of the predetermined period, and further includes:
  • the periodic CSI information having the same collision priority and the same priority of the feedback type is sorted according to the transmission point priority rule corresponding to the predetermined period CSI information.
  • the periodic CSI information with the same collision priority and the same feedback priority is sorted according to the carrier type priority rule corresponding to the CSI information in the predetermined period.
  • the specific implementation of the foregoing step 110 may be: the UE sorts the conflicting CSI information according to the transmission point priority rule corresponding to the predetermined periodic CSI information. .
  • the UE sorts the CSI information of the conflicting period according to the transmission point priority rule corresponding to the predetermined periodic CSI information, and further includes:
  • the periodic CSI information with the same priority of the corresponding transmission point is sorted according to the feedback type priority rule of the CSI information in the predetermined period.
  • the periodic CSI information with the same priority of the corresponding transmission point is sorted according to the carrier type priority rule corresponding to the CSI information in the predetermined period.
  • the periodic CSI information with the same priority of the corresponding transmission point is sorted according to the preemptive assumption priority rule of the CSI information of the predetermined period.
  • the current mode may be: the UE sorts the conflicting periodic CSI information according to the interference assumption priority rule corresponding to the predetermined periodic CSI information.
  • the UE sorts the conflicting CSI information according to the interference criterion of the predetermined periodic CSI information, and further includes:
  • the periodic CSI information having the same collision priority and corresponding to the interference assumption is sorted.
  • the periodic CSI information with the same conflict and corresponding priority of the interference assumption is sorted.
  • the periodic CSI information having the same collision priority and corresponding to the interference assumption is sorted.
  • the specific implementation manner of the foregoing step 110 may be: the UE sorts the conflicting periodic CSI information according to the carrier priority rule corresponding to the predetermined periodic CSI information.
  • the terminal sorts the CSI information of the conflicting period according to the carrier priority rule corresponding to the predetermined periodic CSI information, and further includes:
  • the periodic CSI information having the same collision priority and the same carrier priority is sorted according to the interference estimation priority rule corresponding to the predetermined period CSI information.
  • the UE needs to feed back the CSI corresponding to the three different interference assumptions (represented by CSI report 1, CSI report 2, and CSI report 3), and the reporting period of each CSI is configured by the base station;
  • the upper 4 ⁇ period is in the PUCCH according to the respective reporting type.
  • the UE and the base station agree that when the reporting type is the same, the lower the CSI report index value, the higher the priority of the periodic CSI information; when the reporting type is different, the priority of the different reporting type is as follows:
  • the reporting types 3, 5, 6 in the same CSI report have higher priority than reporting type 1, la, 2, 2a, 2b, 2c,
  • Second highest priority reporting type 2, 2b, 2c, 4;
  • the UE and the base station agree that if the periodic CSI information includes the RI, the bit threshold of the periodic CSI information combination is 10 bits; otherwise, the bit threshold is 20 bits.
  • the UE needs to simultaneously report the RI (2 bits, reporting type 3) of the CSI report 1, the wideband PMI/CQ 11 bits of the CSI report 2, the reporting type 2 ) and the RI of the CSI report 3 (2 bits, reporting type 3) ).
  • the implementation manner of the periodic CSI reporting is as shown in Figure 2, which specifically includes the following operations:
  • Step 200 The UE determines that the conflicting period CSI information includes RI information.
  • Step 210 The UE determines that the bit threshold of the periodic CSI information combination is 10 bits at the time of the last time.
  • Step 220 The UE sorts the conflicting CSI information according to the priority rule agreed with the base station.
  • the conflicting CSI information ranking result is ⁇ RI of CSI report 1, RI of CSI report3, and broadband PMI/CQI of CSI report2.
  • the order is the descending order of priority of the periodic CSI information.
  • Step 230 In the 10-bit range, the UE selects the RI of the CSI report 1 and the RI of the CSI report 3 in descending order of priority of the conflicting period CSI information.
  • Step 240 The UE combines the RI of the CSI report 1 and the RI of the CSI report3, and then uploads it in the PUCCH of the last time.
  • the UE can only report the first two RI information, and cannot report the wideband PMI/CQI information of the CSI report2. Therefore, the information actually reported in the PUCCH at the reporting time is ⁇ CSI report 1 RI, CSI report3 RI ⁇ .
  • the RI information when the RI information is included in the CSI information of the conflicting period, the RI information is preferentially reported, and the transmission threshold performance of the RI information is ensured by selecting the bit threshold corresponding to the RI information.
  • the UE needs to feed back the CSI corresponding to the three different interference assumptions (represented by CSI report 1, CSI report 2, and CSI report 3), and the reporting period of each CSI is configured by the base station;
  • the upper 4 ⁇ period is in the PUCCH according to the respective reporting type.
  • the UE and the base station agree that when the reporting type is the same, the lower the CSI report index value, the higher the priority of the periodic CSI information; when the reporting type is different, the priority of different reporting types is as follows:
  • reporting types 3, 5, 6 in the same CSI report have higher priority than reporting type 1, la, 2, 2a, 2b, 2c, 4.
  • Second highest priority reporting type 2, 2b, 2c, 4;
  • the UE and the base station agree that: if the conflicting periodic CSI information includes the CSI information of the reporting type with the highest priority, the bit threshold of the periodic CSI information is 10 bits; if the conflicting periodic CSI information does not include the highest priority The periodic CSI information of the reporting type, but the periodic CSI information of the reporting type with the second highest priority, the bit threshold of the periodic CSI information combination is 15 bits; if the conflicting periodic CSI information only includes the period of the lowest priority reporting type For CSI information, the bit threshold for combining the periodic CSI information is 20 bits.
  • Step 300 The UE determines that the periodic CSI information of the conflicting period does not include the periodic CSI information of the reporting type with the highest priority, but includes the second highest priority. Periodic CSI information of the reporting type;
  • Step 310 The UE determines the reporting time, and the bit threshold of the combined CSI information is 15 bits.
  • Step 320 The UE sorts the CSI information of the conflicting period according to the priority rule agreed with the base station. Specifically, according to the above agreement, the conflicting CSI information ranking result is ⁇ CSI report2 broadband PMI/CQI, CSI report3 broadband PMI/CQI, CSI reportl narrowband CQI ⁇ . The order is the descending order of priority of the periodic CSI information.
  • Step 330 In the 15-bit range, the UE selects the broadband PMI/CQI of the CSI report2 according to the priority descending order of the conflicting period CSI information.
  • Step 340 The UE reports the broadband PMI/CQI of the CSI report2 in the PUCCH of the reporting time.
  • the UE can only report the broadband PMI/CQI information of the CSI report2, and cannot report two pieces of information with lower priority. Therefore, the information actually reported in the PUCCH at the reporting time is ⁇ the broadband PMI of the CSI report2/ CQI ⁇ .
  • the reporting of periodic CSI information with a higher priority of the reporting type can be ensured, and the transmission performance requirement of the CSI information of the periodic period can be satisfied.
  • the UE needs to feed back the CSI corresponding to each of the three different transmission points (represented by CSI report1, CSI report2, CSI report3), and the reporting period of each CSI is configured by the base station;
  • the upper ⁇ cycle is in the PUCCH according to the respective reporting type.
  • the UE and the base station agree on the priorities of different transmission points, and the higher the priority of the transmission point, the higher the priority of the corresponding period CSI information. Assume that the priority is CSI report1> CSI report2> CSI report3, where the transmission point corresponding to CSI report 1 is the primary transmission point.
  • the UE and the base station agree that if the conflicting periodic CSI information includes the feedback information of the primary transmission point, the phase threshold of the combined CSI information is 15 bits; otherwise, the bit threshold is 20 bits.
  • Step 400 The UE determines the period in which the collision occurs.
  • the CSI information includes the periodic CSI information corresponding to the primary transmission point.
  • Step 410 The UE determines that the bit threshold of the periodic CSI information combination is 15 bits at the time of the last.
  • Step 420 The UE sorts the CSI information of the conflicting period according to the priority rule agreed with the base station. Specifically, according to the above agreement, the conflicting CSI information ranking result is ⁇ RI of CSI report 1, PMI/CQI of CSI report2, and broadband RI of CSI report3. The order is the descending order of priority of the periodic CSI information.
  • Step 430 In the 15-bit range, the UE selects the RI of the CSI report 1 and the PMI/CQL of the CSI report 2 in descending order of priority of the conflicting CSI information.
  • Step 440 The UE combines the RI of the CSI report 1 and the PMI/CQI of the CSI report 2 at the time of the last 4
  • the UE can only report the first two CSI information with the highest priority, and cannot report the last information. Therefore, the information actually reported in the PUCCH at the reporting time is ⁇ CSI report 1 RI, CSI report 2 PMI. /CQI ⁇ .
  • the UE and the base station agree that the primary transmission point has the highest priority, thereby ensuring the reporting of the periodic CSI information corresponding to the primary transmission point, and meeting the transmission performance requirement of the CSI information corresponding to the primary transmission point.
  • the UE needs to feed back the corresponding CSKs of the three different carriers to be represented by CSI report 1, CSI report2, and CSI report3, and the reporting period of each CSI is configured by the base station; the UE reports the periodicity according to the configured period in the PUCCH.
  • Each of the CSI information is updated according to the respective reporting type.
  • the UE and the base station agree on the priorities of different carriers, and the higher the priority of the carrier, the higher the priority of the corresponding period CSI information. Assume that the priority is CSI report 1> CSI report2> CSI report3, where the carrier corresponding to CSI report 1 is the primary carrier.
  • the UE and the base station agree: if the conflicting period CSI information includes feedback information of the primary carrier, the period
  • the bit threshold for CSI information combining is 15 bits; otherwise the bit threshold is 20 bits. If the UE needs to report the RI (2 bits, reporting type 3) of CSI report 1 at the same time,
  • Step 500 The UE determines the period in which the collision occurs.
  • the CSI information includes the periodic CSI information corresponding to the primary carrier.
  • Step 510 The UE determines that the time threshold of the combined CSI information is 15 bits at the time of the last.
  • Step 520 The UE sorts the CSI information of the conflicting period according to the priority rule agreed with the base station. Specifically, according to the above agreement, the conflicting CSI information ranking result is ⁇ RI of CSI report 1, PMI/CQI of CSI report2, and broadband RI of CSI report3.
  • Step 530 In the 15-bit range, the UE selects the RI of the CSI report 1 in descending order of priority of the conflicting period CSI information.
  • Step 540 The UE uploads the RI of the CSI report 1 to the PUCCH at the last time.
  • the UE can only report the first CSI information with the highest priority, and cannot report the latter two CSI information. Therefore, the information actually reported in the PUCCH at the reporting time is RI ⁇ of the CSI report 1.
  • the UE and the base station agree that the primary carrier has the highest priority, so as to ensure the reporting of the periodic CSI information corresponding to the primary carrier, and can meet the transmission performance requirement of the CSI information corresponding to the primary carrier.
  • the embodiment of the present invention further provides a terminal, and the implementation structure thereof is as follows. As shown in Figure 6, the specific includes:
  • the bit threshold determining module 60 is configured to determine a bit threshold of the combined period CSI information according to the periodic CSI information of the collision.
  • the periodic CSI information sorting module 61 is configured to sort the conflicting periodic CSI information according to a predetermined priority rule.
  • the CSI information selection module 62 is configured to select at least one period CSI information from the conflicting period CSI information according to the priority descending order of the CSI information in the range of the above-mentioned bit threshold.
  • the periodic CSI information reporting module 63 is configured to report the selected periodic CSI information at the reporting time.
  • the periodic CSI information reporting module 63 is specifically configured to combine the selected periodic CSI information in descending order of priority and report the report at the reporting time.
  • bit threshold determination module 60 is specifically configured to:
  • determining that the first bit threshold is a bit threshold for combining the periodic CSI information
  • the second bit threshold is a bit threshold for combining the periodic CSI information, where The one bit threshold is less than the second bit threshold.
  • bit threshold determination module 60 is specifically configured to:
  • the bit threshold of the combined CSI information is determined according to the priority of the feedback type of the CSI information of each period in the conflicting period CSI information.
  • the periodic CSI information sorting module 61 is specifically configured to:
  • the periodic CSI information of the conflict is sorted according to the feedback type priority rule of the CSI information of the predetermined period.
  • the periodic CSI information sorting module 61 when sorting the conflicting periodic CSI information according to the feedback type priority rule of the predetermined periodic CSI information, is further used for:
  • the periodic CSI information with the same collision priority and the same feedback priority is sorted according to the carrier type priority rule corresponding to the CSI information in the predetermined period.
  • bit threshold determination module 60 is specifically configured to:
  • the fourth bit threshold is determined to be a bit threshold for combining the periodic CSI information, wherein the third bit threshold is less than the fourth bit threshold.
  • the periodic CSI information sorting module 61 is specifically configured to:
  • the CSI information of the period in which the collision occurs is sorted according to the transmission point priority rule corresponding to the predetermined period CSI information.
  • the periodic CSI information sorting module 61 when sorting the conflicting periodic CSI information according to the transmission point priority rule corresponding to the predetermined periodic CSI information, is further used for:
  • the periodic CSI information with the same priority of the corresponding transmission point is sorted according to the interference assumption priority rule of the predetermined period CSI information.
  • bit threshold determination module 60 is specifically configured to:
  • the fifth bit threshold is a bit threshold for combining the periodic CSI information
  • the sixth bit threshold is determined to be a bit threshold for periodic CSI information combining, wherein the fifth bit threshold is less than the sixth bit threshold.
  • the periodic CSI information sorting module 61 is specifically configured to:
  • the CSI information of the period in which the collision occurs is sorted according to the interference assumption priority rule corresponding to the predetermined period CSI information.
  • the periodic CSI information sorting module 61 when sorting the conflicting periodic CSI information according to the predetermined interference priority rule corresponding to the predetermined period CSI information, is further used for:
  • the periodic CSI information having the same collision priority and corresponding to the interference assumption is sorted.
  • bit threshold determination module 60 is specifically configured to:
  • the seventh bit threshold is a bit threshold for combining the periodic CSI information
  • the eighth bit threshold is determined to be the bit threshold of the periodic CSI information combining, wherein the seventh bit threshold is less than the eighth bit threshold.
  • the periodic CSI information sorting module 61 is specifically configured to:
  • the periodic CSI information of the collision is sorted according to the carrier priority rule corresponding to the predetermined period CSI information.
  • the periodic CSI information sorting module 61 sorts the conflicting periodic CSI information according to the carrier priority rule corresponding to the predetermined periodic CSI information, and is specifically used to:
  • the collision occurs and the corresponding carrier has the same priority Periodic CSI information ordering
  • the periodic CSI information having the same collision priority and the same carrier priority is sorted according to the interference estimation priority rule corresponding to the predetermined period CSI information.
  • another terminal provided by the embodiment of the present invention includes: a processor 70 and a transmitter 71.
  • the processor 70 is configured to: when multiple (at least two) periodic CSI information needs to be reported at the same reporting time, that is, multiple periodic CSI information conflicts at the same reporting time, and determine a period according to the conflicting periodic CSI information.
  • the bit threshold of the CSI information combination according to a predetermined priority rule, sorting the CSI information of the conflicting period, within the range of the above-mentioned bit threshold, according to the priority of the conflicting period CSI information, descending from the conflicting period CSI information Select at least one period of CSI information;
  • the transmitter 71 is configured to report the selected period CSI information at the reporting time.
  • the transmitter 71 is specifically configured to combine the selected period CSI information in descending order of priority and report the report at the reporting time.
  • the processor 70 is specifically configured to:
  • determining that the first bit threshold is a bit threshold for combining the periodic CSI information
  • the second bit threshold is determined to be a bit threshold for combining the periodic CSI information, wherein the first bit threshold is smaller than the second bit threshold.
  • the processor 70 is specifically configured to:
  • the bit threshold of the combined CSI information is determined according to the priority of the feedback type of the CSI information of each period in the conflicting period CSI information.
  • the processor 70 is specifically configured to:
  • the periodic CSI information of the conflict is sorted according to the feedback type priority rule of the CSI information of the predetermined period.
  • the processor 70 when sorting the conflicting period CSI information according to the feedback type priority rule of the predetermined period CSI information, is further used for:
  • the periodic CSI information with the same collision priority and the same feedback priority is sorted according to the carrier type priority rule corresponding to the CSI information in the predetermined period.
  • the processor 70 is specifically configured to:
  • the fourth bit threshold is determined to be a bit threshold for combining the periodic CSI information, wherein the third bit threshold is less than the fourth bit threshold.
  • the processor 70 is specifically configured to:
  • the CSI information of the period in which the collision occurs is sorted according to the transmission point priority rule corresponding to the predetermined period CSI information.
  • the processor 70 sorts the conflicting period CSI information according to the transmission point priority rule corresponding to the predetermined period CSI information, the processor 70 is further configured to:
  • the periodic CSI information with the same priority of the corresponding transmission point is sorted according to the preemptive assumption priority rule of the CSI information of the predetermined period.
  • the processor 70 is specifically configured to:
  • the fifth bit threshold is a bit threshold for combining the periodic CSI information
  • the sixth bit threshold is determined to be a bit threshold for periodic CSI information combining, wherein the fifth bit threshold is less than the sixth bit threshold.
  • the processor 70 is specifically configured to:
  • the periodic CSI information of the collision is sorted according to the interference assumption priority rule corresponding to the predetermined period CSI information.
  • the processor 70 when sorting the conflicting periodic CSI information according to the interference assumption priority rule corresponding to the predetermined periodic CSI information, is further used for:
  • the periodic CSI information having the same collision priority and corresponding to the interference assumption is sorted.
  • the processor 70 is specifically configured to:
  • the seventh bit threshold is a bit threshold for combining the periodic CSI information
  • the eighth bit threshold is determined to be the bit threshold of the periodic CSI information combining, wherein the seventh bit threshold is less than the eighth bit threshold.
  • the processor 70 is specifically configured to:
  • the periodic CSI information of the collision is sorted according to the carrier priority rule corresponding to the predetermined period CSI information.
  • the processor 70 sorts the conflicting periodic CSI information according to the carrier priority rule corresponding to the predetermined periodic CSI information, the processor 70 is specifically configured to:
  • the periodic CSI information having the same collision priority and the same carrier priority is sorted according to the interference estimation priority rule corresponding to the predetermined period CSI information.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the present invention is applicable to computer programs implemented 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 included. The form of the product.
  • 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.

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

Abstract

Le présent modèle d'utilité concerne un procédé et un terminal pour l'établissement de rapports sur les informations CSI périodiques . Lorsqu'au moins deux informations CSI périodiques doivent être rapportées simultanément, un conflit surgit. Pour y remédier on prévoit un procédé consistant à : déterminer le seuil binaire de fusion pour les informations CSI périodiques conformément aux informations CSI périodiques conflictuelles ; trier les informations CSI périodiques conflictuelles conformément aux règles de priorité prédéterminées ; sélectionner dans les informations CSI périodiques conflictuelles au moins une information CSI périodique dans la plage du seuil binaire selon l'ordre prioritaire des informations CSI périodiques conflictuelles ; et établir un rapport sur les informations CSI périodiques selon le temps notifié. Pour répondre aux besoins de transmission des informations CSI périodiques, il faut, autant que possible, une pluralité d'informations CSI périodiques transmises garantissant la fusion.
PCT/CN2013/076996 2012-07-09 2013-06-08 Procédé et terminal pour l'établissement de rapports csi périodiques WO2014008795A1 (fr)

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CN107889230B (zh) * 2016-09-29 2022-11-29 中兴通讯股份有限公司 信号发送、接收发送及装置
CN108631911B (zh) * 2017-03-23 2021-11-30 中兴通讯股份有限公司 周期性子带上报方法和装置
WO2018201489A1 (fr) * 2017-05-05 2018-11-08 Zte Corporation Transmission de rapport d'informations d'état de canal
CN109391344B (zh) 2017-08-03 2021-04-23 维沃移动通信有限公司 上报信息的传输方法、用户侧设备和网络侧设备

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