WO2012146211A1 - 控制信令的发送和接收方法及设备 - Google Patents
控制信令的发送和接收方法及设备 Download PDFInfo
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- WO2012146211A1 WO2012146211A1 PCT/CN2012/074921 CN2012074921W WO2012146211A1 WO 2012146211 A1 WO2012146211 A1 WO 2012146211A1 CN 2012074921 W CN2012074921 W CN 2012074921W WO 2012146211 A1 WO2012146211 A1 WO 2012146211A1
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- dci
- dci format
- transmission mode
- format
- downlink transmission
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- 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
- H04L1/0078—Avoidance of errors by organising the transmitted data in a format specifically designed to deal with errors, e.g. location
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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- 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
- H04L1/0025—Transmission of mode-switching indication
Definitions
- the present application claims to be Chinese patent application filed on April 29, 2011, the Chinese Patent Office, the application number is CN 201110111367.7, and the invention is entitled "Method and device for transmitting and receiving control signaling" Priority is hereby incorporated by reference in its entirety.
- TECHNICAL FIELD The present invention relates to mobile communication technologies, and in particular, to a method and a device for transmitting and receiving control signaling.
- LTE Long Term Evolution
- the specific transmission method includes a transmission mode (TM), resource scheduling information, and a modulation and coding method.
- TM transmission mode
- Some transmission methods are notified by a semi-static method, for example, TM is notified by higher layer signaling; some transmission methods are notified by dynamic methods, for example, resource scheduling information, modulation and coding methods, etc. are downlink control information through the physical layer. (Downlink Control Information, DCI) Notified.
- DCI Downlink Control Information
- DCI formats For the uplink or downlink, there are different DCI formats corresponding to different TMs. For example, for the uplink or downlink, there are different DCI formats corresponding to different TMs. For example, for the uplink or downlink, there are different DCI formats corresponding to different TMs. For example, for the uplink or downlink, there are different DCI formats corresponding to different TMs. For example, for the uplink or downlink, there are different DCI formats corresponding to different TMs. For example, for the uplink or downlink, there are different DCI formats corresponding to different TMs. For example, for the uplink or downlink, there are different DCI formats corresponding to different TMs. For example, for the uplink or downlink, there are different DCI formats corresponding to different TMs. For example, for the uplink or downlink, there are different DCI formats corresponding to different TMs. For example, for the uplink or downlink, there are different DCI formats corresponding to different TMs. For example, for
- the corresponding DCI format for the notification transmission method is format 1A or format 2.
- the corresponding DCI format for notifying the transmission method is format 0 or format 4.
- the terminal needs to detect the possible DCI format in the Physical Downlink Control Channel (PDCCH) by using the blind detection method.
- the DCI format 1A or the format 2 may exist; for the uplink TM2, the DCI format is 0. Or format 4 may exist.
- the base station configures TM4 for downlink transmission and TM2 for uplink transmission, DCI format 1A, format 2, format 0 or format 4 may all exist.
- the blind detection of the DCI format performed by the terminal is to distinguish the DCI format according to the size of the DCI format. For example, it is assumed that in the current configuration, the format 1A size is 30 bits, the format 2 size is 34 bits, the format 4 size is 34 bits, and the terminal is blind.
- the embodiments of the present invention provide a method and a device for transmitting and receiving control signaling, which can distinguish each DCI format, so that the DCI format can be correctly detected blindly, and the generated overhead is small and simple to implement.
- the embodiment of the invention provides a method for sending control signaling, including:
- a set of DCI formats is different in size from the second set of DCI formats;
- An embodiment of the present invention provides a method for receiving control signaling, including:
- the determining the size of the DCI format 4 includes:
- Format 4 adds bits such that the DCI format 4 of the added bit is different from the DCI format corresponding to the downlink transmission mode;
- the size of the DCI format 4 is the original size of the DCI format 4 plus the added bits.
- An embodiment of the present invention provides a sending device for control signaling, including:
- a first determining module configured to determine an original size of the first group of DCI formats used by the downlink control information DCI to be sent;
- a second determining module configured to determine, according to a configuration of the current transmission, a second group of DCI formats that can be adopted in the currently transmitted configuration, and determine a size of the second group of DCI formats; a processing module, configured to compare, by the second determining module, a size of the second group of DCI formats with an original size of the first group of DCI formats determined by the first determining module, if the second The DCI format of the DCI format having the same size as the first DCI format adds bits to the DCI format of the first DCI format having the same size as the second DCI format, so that the bit is increased.
- a set of DCI formats is different in size from the second set of DCI formats;
- a sending module configured to send the DCI to be sent according to the first group of DCI formats after the added bit obtained by the processing module.
- An embodiment of the present invention provides a receiving device for control signaling, including:
- a determining module configured to determine a size of the downlink control information DCI format 4, including: determining an original size of the DCI format 4; determining, according to a current downlink transmission mode, a DCI format corresponding to the downlink transmission mode; The DCI format corresponding to the mode is compared with the original size of the DCI format 4, and if the DCI format corresponding to the downlink transmission mode has the same DCI format as the DCI format 4, the bit is added to the DCI format 4, The DCI format 4 of the added bit is different in size from the DCI format corresponding to the downlink transmission mode; determining that the size of the DCI format 4 is an original size of the DCI format 4 plus an added bit; and a detecting module, configured to The size of the DCI format 4 determined by the determining module detects DCI using DCI format 4.
- the embodiment of the present invention determines a second group of DCI formats used in the current transmission configuration according to the currently transmitted configuration, and compares the size of the second group of DCI formats with the original size of the first group of DCI formats.
- bit processing is performed on the corresponding DCI format in the first group of DCI formats, so that the second group of DCI formats are different from the size of the first group of DCI formats to be compared, and the current transmission configuration is adopted.
- the DCI format has different sizes, instead of making the DCI formats different in all transmission configurations, and can distinguish the DCI formats in the current transmission configuration, so that the DCI format can be correctly detected blindly, and the generated overhead is small and the processing situation is simple.
- 1 is a schematic flow chart of a method according to a first embodiment of the present invention
- 2 is a schematic flow chart of a method according to a second embodiment of the present invention
- FIG. 3 is a schematic flow chart of a method according to a third embodiment of the present invention.
- FIG. 4 is a schematic flow chart of a method according to a fourth embodiment of the present invention.
- FIG. 5 is a schematic structural diagram of a device according to a fifth embodiment of the present invention.
- FIG. 6 is a schematic structural diagram of a device according to a sixth embodiment of the present invention.
- the specific embodiments of the present invention will be more clearly described in the following embodiments.
- the technical solutions in the embodiments of the present invention will be clearly and completely described.
- the described embodiments are a part of the embodiments of the invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts are included in the protection of the present invention.
- FIG. 1 is a schematic flowchart of a method according to a first embodiment of the present invention. Includes:
- Step 11 The base station determines an original size of the first group of DCI formats used by the DCI to be sent;
- the original size of the first group of DCI formats used by the DCI to be sent may be determined according to at least one of the following items: an uplink and downlink duplex configuration, such as a frequency division duplex (FDD), a system bandwidth, Cross-carrier scheduling configuration, number of transmit antennas, single cell or multi-cell transmission.
- FDD frequency division duplex
- Cross-carrier scheduling configuration number of transmit antennas, single cell or multi-cell transmission.
- Tables 1 ⁇ 3 show the size of format 2, format 2C and format 4 in various configurations in the case of FDD and 1.4M bandwidth respectively.
- the first set of DCI formats is format 4, and its original size is 34 bits in FDD, 1.4 M bandwidth, cross-carrier scheduling, downlink multi-cell and uplink 2 transmit antenna configurations.
- Step 12 The base station determines, according to the current transmission configuration, a second group of DCI formats that can be adopted in the current transmission configuration.
- the transmission mode may be at least one of an uplink transmission mode and a downlink transmission mode.
- the uplink transmission mode may include at least one of the following: TM1 and TM2; the downlink transmission mode includes at least one of the following: TM3, TM4, TM8, and BTM9.
- the second set of DCI formats may include DCI format 1A and DCI format 2; for uplink TM2, the second set of DCI formats may include: DCI format 0 and DCI format 4.
- the foregoing first group of DCI formats may be: a DCI format used to notify an uplink transmission mode
- the second group of DCI cells may be: a DCI format used to notify a downlink transmission mode
- the first group of DCI formats may be:
- the second group of DCI cells may be: a DCI format for notifying the uplink transmission mode.
- the first group of DCI formats includes: format 4, and the second group of DCI formats includes: format 2, format 2A, format 2B, or format 2C; or, the first group of DCI formats includes: The format 2A, the format 2B, or the format 2C, the second group of DCI formats includes: format 4.
- Step 13 The base station compares the size of the second group of DCI formats with the original size of the first group of DCI formats, if the second group of DCI formats and the first group of DCI formats have the same size DCI format. , Adding a bit to the DCI format of the first group of DCI formats having the same size as the second group of DCI formats, so that the first group of DCI formats of the added bits are different from the second group of DCI formats;
- the case of adding a bit may be: adding one bit to a DCI format of the first group of DCI formats having the same size as the second group of DCI formats, if adding a bit, the first group of DCI formats and the first The two groups of DCI formats further have the same size DCI format, and then add one more bit to the DCI format of the first group of DCI formats having the same size as the second group of DCI formats, until the first group of DCIs after adding bits The format does not have the same size DCI format as the second set of DCI formats.
- the first group of DCI formats includes DCI format X
- the size of the DCI format X is n0
- the second group of DCI formats includes a DCI format of size ⁇
- the size of the DCI format X is increased by 1, that is, DCI at this time
- the size of the format X is ⁇ 0+1.
- the size of the DCI format X is further increased by 1, that is, the size of the DCI format X is n+2. . And so on until the second set of DCIs and the first set of DCIs do not have the same DCI format.
- the above added bits may be 0 or 1, and if more bits are added, the increased bits may be all 0s or all 1s or portions 0s.
- the base station and the terminal know in advance the value of the added bit, for example, in a pre-configured manner, or in a signaling manner.
- the second set of DCI formats does not have the same size of the DCI format as the first set of DCI formats, no bits are added to the first set of DCI formats.
- Step 14 The base station sends the DCI to be sent according to the first group of DCI formats after the bit is added.
- the second group of DCI formats used in the current transmission configuration are determined according to the current transmission configuration, and the size of the second group of DCI formats is compared with the original size of the first group of DCI formats, and the same size DCI format exists. Adding bit processing to the corresponding DCI format in the first group of DCI formats, so that the second group of DCI formats are different in size from the first group of DCI formats to be compared, and the size of the DCI format used in the current transmission configuration is different. Rather than making the DCI formats different in all transmission configurations, the additional overhead can be generated and the processing situation is simple, based on the ability to distinguish the DCI formats in the current transmission configuration.
- Step 21 The base station determines the original size of the DCI format 4 used by the DCI to be transmitted; for example, in the FDD, 1.4M bandwidth, cross-carrier scheduling, downlink multi-cell, and uplink 2 transmit antenna configurations, the original size of the DCI format 4 is 34 bits.
- Step 22 The base station determines, according to the current downlink transmission mode, a DCI format corresponding to the downlink transmission mode used by the current transmission.
- the DCI format corresponding to the downlink transmission mode used by the current transmission is DCI format 2A; if the current downlink transmission mode is TM4, the current transmission adopts The DCI format corresponding to the downlink transmission mode is DCI format 2; if the current downlink transmission mode is TM8, the DCI format corresponding to the downlink transmission mode is DCI format 2B; if the current downlink transmission mode is TM9, The DCI format corresponding to the downlink transmission mode is DCI format 2C.
- Step 23 The base station compares the DCI format corresponding to the downlink transmission mode with the original size of the DCI format 4, if the DCI format corresponding to the downlink transmission mode is the same as the DCI format 4 a DCI format of size, adding 1 bit to the DCI format 4;
- the DCI format corresponding to the downlink transmission mode is DCI format 2X
- the DCI format 2X is one of DCI format 2, DCI format 2A, DCI format 2B, and DCI format 2C, if DCI format 2X and DCI format 4
- the original size is the same, and the size of the DCI format 4 is increased by 1 bit.
- the bit is not added to the size of the DCI format 4.
- the current transmission mode is TM9
- the currently existing DCI format 2C may be the same size as the DCI format 4
- the DCI format 2C exists and the DCI format 2C is the same as the original size of the DCI format 4 in the current configuration.
- 1 bit is added after DCI format 4; if DCI format 2C does not exist or the original size of DCI format 2C and DCI format 4 is different under the current configuration, no additional bits are added to DCI format 4.
- Step 24 If the DCI format 4 is increased by one bit, the base station transmits the DCI to be transmitted according to the DCI format 4 after adding one bit.
- the DCI format having the same size as the second group DCI format in the first group of DCI formats is added by one. Bits, the DCI format can be distinguished, so that the terminal can correctly process the downlink or uplink data.
- the DCI format is distinguished from the DCI format in the current transmission configuration, instead of the DCI format in all transmission modes and transmission configurations. Effectively reduce the number of extra bits added, reduce the number of comparisons of different format sizes, The processing complexity of low base stations and terminals.
- a first group of DCI format is used as a DCI format for informing a downlink transmission method
- a second group of DCI format is a DCI format for notifying an uplink transmission method.
- this embodiment includes:
- Step 31 The base station determines the original size of the DCI format adopted by the DCI corresponding to the downlink transmission mode.
- the DCI format used by the DCI corresponding to the downlink transmission mode may be DCI format 2X, and DCI format 2X is DCI format 2.
- Step 32 The base station determines, according to the current uplink transmission mode, a DCI format corresponding to the uplink transmission mode used by the current transmission.
- the DCI format corresponding to the uplink transmission mode is TM2
- the DCI format Y specifically the DCI format ⁇ can be DCI format 4.
- Step 33 The base station compares the DCI format ⁇ with the original size of the DCI format 2 ⁇ . If the DCI format ⁇ is the same size as the DCI format 2 ⁇ , one bit is added to the DCI format 2 ⁇ .
- the bit is not added to the DCI format 2 ⁇ .
- the current DCI format 2 is format 2, and according to the current uplink transmission mode, it is assumed that the uplink is ⁇ 2, and it is judged that the DCI format 4 is currently present. If DCI format 4 is the same as the original size of DCI format 2, 1 bit is added after DCI format 2. Assuming that the uplink transmission mode is the uplink TM1, it is determined that there is currently no DCI format that may be the same as the original size of the DCI format 2, or the original size of the DCI format 4 and the DCI format 2 are different under the current transmission configuration, and no extra bits are added to the format 2 .
- Step 34 If the DCI format 2 ⁇ is increased by one bit, the base station sends the DCI to be transmitted according to the DCI format 2 ⁇ after adding one bit.
- the DCI format having the same size as the second group DCI format in the first group of DCI formats is added by one. Bits, the DCI format can be distinguished, so that the terminal can correctly process the downlink or uplink data.
- the DCI format is distinguished from the DCI format in the current transmission configuration, instead of the DCI format in all transmission modes and transmission configurations. Effectively reduce the number of extra bits added, reduce the number of comparisons of different format sizes, and reduce the processing complexity of base stations and terminals.
- FIG. 4 is a schematic flow chart of a method according to a fourth embodiment of the present invention, including:
- Step 41 The terminal determines the size of the DCI format 4;
- the determining the size of the DCI format 4 includes:
- Step 1 Determine the original size of the DCI format 4
- the second step determining, according to the current downlink transmission mode, the DCI format corresponding to the downlink transmission mode; for example, if the current downlink transmission mode is TM3, the DCI format corresponding to the downlink transmission mode used by the current transmission is DCI format 2A; if the current downlink transmission mode is TM4, the DCI format corresponding to the downlink transmission mode used by the current transmission is DCI format 2; if the current downlink transmission mode is TM8, the current transmission is adopted.
- the DCI format corresponding to the downlink transmission mode is DCI format 2B. If the current downlink transmission mode is TM9, the DCI format corresponding to the downlink transmission mode used by the current transmission is DCI format 2C.
- the DCI format corresponding to the downlink transmission mode includes: format 2, format 2A, format 2B, or format 2C.
- the third step comparing the DCI format corresponding to the downlink transmission mode with the original size of the DCI format 4, if the DCI format corresponding to the downlink transmission mode has the same DCI format as the DCI format 4, Adding a bit to the DCI format 4, so that the DCI format 4 of the added bit is different from the DCI format corresponding to the downlink transmission mode; determining that the size of the DCI format 4 is the original size of the DCI format 4 plus an increase Bits.
- the adding a bit to the DCI format 4, so that the DCI format 4 of the added bit is different from the DCI format corresponding to the downlink transmission mode may be, adding one bit to the DCI format 4 format, respectively, until The bit-increasing DCI format 4 is different in size from the DCI format corresponding to the downlink transmission mode.
- a bit with a value of 0 is added to the DCI format 4, or a bit with a value of 1 is added.
- Step 42 The terminal detects the DCI adopting the DCI format 4 according to the determined size of the DCI format 4; for example, detecting and formatting in the downlink control signaling by using a blind detection method according to the size of the configured DCI format 4 4 corresponding DCI.
- the second group of DCI formats used in the current transmission configuration are determined according to the current transmission configuration, and the size of the second group of DCI formats is compared with the original size of the first group of DCI formats, and the same size DCI format exists. Adding bit processing to the corresponding DCI format in the first group of DCI formats, so that the second group of DCI formats are different in size from the first group of DCI formats to be compared, and the size of the DCI format used in the current transmission configuration is different. Rather than making the DCI formats different in all transmission configurations, the additional overhead can be generated and the processing situation is simple, based on the ability to distinguish the DCI formats in the current transmission configuration.
- FIG. 5 is a schematic structural diagram of a device according to a fifth embodiment of the present invention.
- the device includes a first determining module 51, a second determining module 52, a processing module 53, and a sending module 54.
- the first determining module 51 is configured to determine a DCI to be sent.
- the second size determining module 52 is configured to determine, according to the current transmission configuration, a second group of DCI formats that can be adopted in the currently transmitted configuration, and determine the size of the second group of DCI formats.
- the module 53 is configured to compare the size of the second group of DCI formats determined by the second determining module 52 with the original size of the first group of DCI formats determined by the first determining module 51, if The second group of DCI formats and the first group of DCI formats have the same size of the DCI format, and the bits of the first group of DCI formats having the same size as the second group of DCI formats are added, so that the bits are increased.
- the first group of DCI formats is different from the second group of DCI formats.
- the sending module 54 is configured to send the DCI to be sent according to the first group of DCI formats of the added bits obtained by the processing module 53.
- the second determining module 52 may be specifically configured to: determine, according to the transmission mode, a second group of DCI formats that can be used in the current transmission mode, where the transmission mode is at least one of an uplink transmission mode and a downlink transmission mode.
- the first determining module 51 may be specifically configured to determine, according to at least one of the following items, an original size of the first group of DCI formats adopted by the DCI to be sent: uplink and downlink duplex configuration, system bandwidth, and cross-carrier scheduling configuration. , number of transmit antennas, single cell or multi-cell transmission.
- the processing module 53 may be specifically configured to: specifically add, to the first set of DCI formats, a DCI format having the same size as the second group of DCI formats, with a value of 0, or increase the value to 1. Bit.
- the processing module 53 may be specifically configured to: compare a size of the second group of DCI formats with an original size of the first group of DCI formats, if the second group of DCI formats and the first group of DCI formats And having the same size of the DCI format, adding a bit to the DCI format of the first group of DCI formats having the same size as the second group of DCI formats, until the first group of DCI formats and the second group of bits are added.
- the DCI format has a different DCI format size.
- the processing module 53 is further configured to: if the second group of DCI formats do not have the same size DCI format as the first group of DCI formats, do not add bits to the first group of DCI formats.
- the first determining module 51 is specifically configured to: determine an original size of the DCI format 4 used by the DCI to be sent; the second determining module 52 is specifically configured to: determine the downlink according to the current downlink transmission mode. a DCI format corresponding to the transmission mode; the processing module 53 is specifically configured to: compare a DCI format corresponding to the downlink transmission mode with an original size of the DCI format 4, if the downlink transmission mode corresponds to a DCI format and The DCI format 4 has the DCI format of the same size, and the bit is added to the DCI format 4, so that the DCI format 4 of the added bit is different from the DCI format corresponding to the downlink transmission mode.
- the sending module 54 is specifically used for : transmitting the DCI to be transmitted according to the DCI format 4 of the added bit.
- the second determining module 52 may be specifically configured to: determine a second group of DCI formats that can be adopted in the currently transmitted configuration, including: format 2, format 2A, format 2B, or format 2C.
- the second determining module 52 may be specifically configured to: if the current downlink transmission mode is TM3, the DCI format corresponding to the downlink transmission mode is DCI format 2A; if the current downlink transmission mode is TM4, the downlink transmission The DCI format corresponding to the mode is DCI format 2; if the current downlink transmission mode is TM8, the DCI format corresponding to the downlink transmission mode is DCI format 2B; if the current downlink transmission mode is TM9, the downlink transmission mode corresponds to The DCI format is DCI format 2C.
- the second group of DCI formats used in the current transmission configuration are determined according to the current transmission configuration, and the size of the second group of DCI formats is compared with the original size of the first group of DCI formats, and the same size DCI format exists. Adding bit processing to the corresponding DCI format in the first group of DCI formats, so that the second group of DCI formats are different in size from the first group of DCI formats to be compared, and the size of the DCI format used in the current transmission configuration is different. Rather than making the DCI formats different in all transmission configurations, the additional overhead can be generated and the processing situation is simple, based on the ability to distinguish the DCI formats in the current transmission configuration.
- FIG. 6 is a schematic structural diagram of a device according to a sixth embodiment of the present invention, including a determining module 61 and a detecting module 62.
- the determining module 61 is configured to determine the size of the DCI format 4, and includes: determining an original size of the DCI format 4; a downlink transmission mode, the DCI format corresponding to the downlink transmission mode is determined, and a DCI format corresponding to the downlink transmission mode is compared with an original size of the DCI format 4, if a DCI format corresponding to the downlink transmission mode is The DCI format 4 has the DCI format of the same size, and the bit is added to the DCI format 4, so that the DCI format 4 of the added bit is different from the DCI format corresponding to the downlink transmission mode; and the size of the DCI format 4 is determined. Adding an added bit to the original size of the DCI format 4; the detecting module 62 is configured to detect the DCI adopting the DCI format 4 according to the size of the DCI format 4 determined by
- the determining module 61 is specifically configured to add a bit with an added value of 0 to the DCI format 4, or increase a bit with a value of 1.
- the determining module is specifically configured to determine that the DCI format corresponding to the downlink transmission mode includes: format 2, format 2A, format 2B, or format 2C.
- the determining module 61 may include a first unit for adding a bit to the original size of the DCI format 4, such that the DCI format 4 of the added bit is different from the size of the DCI format corresponding to the downlink transmission mode, the first The unit is configured to add one bit each time to the DCI format 4 format until the DCI format 4 of the added bit is different from the size of the DCI format corresponding to the downlink transmission mode.
- the determining module 61 may include a second unit for determining a DCI format corresponding to the downlink transmission mode according to a current downlink transmission mode, where the second unit is configured to: if the downlink transmission mode is the transmission mode TM3, The DCI format corresponding to the downlink transmission mode is DCI format 2A; if the downlink transmission mode is The DCI format corresponding to the downlink transmission mode is DCI format 2; if the downlink transmission mode is TM8, the DCI format corresponding to the downlink transmission mode is DCI format 2B; if the downlink transmission mode is TM9, Then, the DCI format corresponding to the downlink transmission mode is DCI format 2C.
- the second group of DCI formats used in the current transmission configuration are determined according to the current transmission configuration, and the size of the second group of DCI formats is compared with the original size of the first group of DCI formats, and the same size DCI format exists. Adding bit processing to the corresponding DCI format in the first group of DCI formats, so that the second group of DCI formats are different in size from the first group of DCI formats to be compared, and the size of the DCI format used in the current transmission configuration is different. Rather than making the DCI formats different in all transmission configurations, the additional overhead can be generated and the processing situation is simple, based on the ability to distinguish the DCI formats in the current transmission configuration.
- the foregoing program may be stored in a computer readable storage medium, and when executed, the program includes The foregoing steps of the method embodiment; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.
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Description
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Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR112013022130-5A BR112013022130B1 (pt) | 2011-04-29 | 2012-04-28 | Método e dispositivo para a transmissão e o recebimento de sinalização de controle |
EP12777281.2A EP2675198B1 (en) | 2011-04-29 | 2012-04-28 | Method and device for sending and receiving control signalling |
EP16183920.4A EP3179752B1 (en) | 2011-04-29 | 2012-04-28 | Method and device for transmitting and receiving control signaling |
AU2012247877A AU2012247877B2 (en) | 2011-04-29 | 2012-04-28 | Method and device for sending and receiving control signalling |
US13/856,338 US20130223378A1 (en) | 2011-04-29 | 2013-04-03 | Method and device for transmitting and receiving control signaling |
AU2016200204A AU2016200204B2 (en) | 2011-04-29 | 2016-01-13 | Method and device for transmitting and receiving control signaling |
Applications Claiming Priority (2)
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CN108712239B (zh) * | 2013-09-30 | 2022-02-01 | 华为技术有限公司 | 控制信息的传输方法、用户设备和基站 |
CN104640210B (zh) * | 2013-11-15 | 2019-04-30 | 深圳市中兴微电子技术有限公司 | 一种基带数据存储控制方法和装置 |
EP3125460B1 (en) * | 2014-03-27 | 2019-08-28 | LG Electronics Inc. | Method for transmitting and receiving downlink signal in wireless communication system, and device therefor |
KR102279483B1 (ko) | 2017-03-24 | 2021-07-20 | 삼성전자 주식회사 | 무선 통신 시스템에서 하향링크 제어신호 검출 방법 및 장치 |
CN113783671B (zh) * | 2018-05-11 | 2022-12-27 | 华为技术有限公司 | 通信方法、终端设备和网络设备 |
US10911177B2 (en) * | 2018-06-13 | 2021-02-02 | Qualcomm Incorporated | Channel state information measurement and feedback for transmission mode switching |
CN112787750B (zh) * | 2019-11-08 | 2023-09-22 | 维沃移动通信有限公司 | Dci大小的对齐处理方法、终端设备和网络设备 |
US11558144B2 (en) * | 2019-11-18 | 2023-01-17 | Qualcomm Incorporated | Resolving downlink control information ambiguity |
WO2024021122A1 (zh) * | 2022-07-29 | 2024-02-01 | 北京小米移动软件有限公司 | 下行控制信息dci接收、发送方法及装置、存储介质 |
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CN101605375A (zh) * | 2008-06-11 | 2009-12-16 | 大唐移动通信设备有限公司 | 一种下行控制信道上的信令发送方法 |
WO2010050784A2 (en) * | 2008-10-31 | 2010-05-06 | Samsung Electronics Co., Ltd. | Device and method for transmitting downlink controlinformation in a wireless communication system |
CN101764642A (zh) * | 2009-12-30 | 2010-06-30 | 中兴通讯股份有限公司 | 一种下行控制信息的传输方法及传输系统 |
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CN101594205B (zh) * | 2009-06-22 | 2014-08-06 | 中兴通讯股份有限公司南京分公司 | 一种高级长期演进系统的下行控制信令发送方法 |
US8379536B2 (en) * | 2009-10-08 | 2013-02-19 | Qualcomm Incorporated | Downlink control information for efficient decoding |
US9055576B2 (en) * | 2009-10-08 | 2015-06-09 | Qualcomm Incorporated | Uplink resource allocation for LTE advanced |
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CN101605375A (zh) * | 2008-06-11 | 2009-12-16 | 大唐移动通信设备有限公司 | 一种下行控制信道上的信令发送方法 |
WO2010050784A2 (en) * | 2008-10-31 | 2010-05-06 | Samsung Electronics Co., Ltd. | Device and method for transmitting downlink controlinformation in a wireless communication system |
CN101764642A (zh) * | 2009-12-30 | 2010-06-30 | 中兴通讯股份有限公司 | 一种下行控制信息的传输方法及传输系统 |
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AU2016200204B2 (en) | 2017-02-23 |
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US20130223378A1 (en) | 2013-08-29 |
EP3179752A1 (en) | 2017-06-14 |
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CN102448037A (zh) | 2012-05-09 |
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EP3179752B1 (en) | 2020-06-17 |
EP2675198B1 (en) | 2016-11-02 |
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