WO2018058561A1 - 指示harq进程号的方法、网络设备和用户设备 - Google Patents

指示harq进程号的方法、网络设备和用户设备 Download PDF

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Publication number
WO2018058561A1
WO2018058561A1 PCT/CN2016/101169 CN2016101169W WO2018058561A1 WO 2018058561 A1 WO2018058561 A1 WO 2018058561A1 CN 2016101169 W CN2016101169 W CN 2016101169W WO 2018058561 A1 WO2018058561 A1 WO 2018058561A1
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Prior art keywords
repetition level
channel
harq process
field
dci
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PCT/CN2016/101169
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English (en)
French (fr)
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余政
程型清
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华为技术有限公司
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Priority to PCT/CN2016/101169 priority Critical patent/WO2018058561A1/zh
Publication of WO2018058561A1 publication Critical patent/WO2018058561A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling

Definitions

  • the embodiments of the present invention relate to the field of communications, and in particular, to a method, a network device, and a user equipment for indicating a HARQ process ID.
  • downlink control information may be utilized to indicate a HARQ process number or index.
  • the number of maximum HARQ processes supported by the user equipment (UE, User Equipment) is eight
  • the DCI includes a 3-bit HARQ process number field, where the HARQ process number field is used to indicate eight HARQ process numbers.
  • the HARQ process number is the number of the HARQ process corresponding to the Physical Downlink Shared Channel (PDSCH) or the Physical Uplink Shared Channel (PUSCH) scheduled by the DCI.
  • PDSCH Physical Downlink Shared Channel
  • PUSCH Physical Uplink Shared Channel
  • the starting subframe of the PDSCH transmission scheduled by the DCI may be n+k.
  • k> 2.
  • the end subframe of the DCI transmission and the start subframe of the PDSCH transmission scheduled by the DCI are separated by at least one subframe, that is, the DCI schedules the PDSCH across the subframe.
  • the cross-subframe scheduling if the number of the maximum number of HARQ processes supported by the UE is eight, the UE can only use up to 80% of the downlink subframes to receive the PDSCH, so that the peak rate of the UE is reduced.
  • the maximum number of HARQ processes supported by the UE may be increased. For example, in Rel-14, the maximum number of HARQ processes supported by the UE can be increased from 8 to 10. When the number of the maximum number of HARQ processes supported by the UE is ten, the UE can use all the downlink subframes to receive the PDSCH, so that the peak rate of the UE does not decrease.
  • the number of maximum HARQ processes of the UE is ten, it can be indicated that the 3-bit HARQ process number field in the DCI cannot indicate 10 processes. Although more bits can be considered to indicate more process numbers, this may require the introduction of a new DCI format.
  • Embodiments of the present invention provide a method, a network device, and a user equipment that indicate a HARQ process number, which can indicate more HARQ process numbers without changing an existing DCI format.
  • the first aspect provides a method for indicating a HARQ process ID, where the network device determines a HARQ process ID, where the HARQ process ID is a number of a HARQ process corresponding to a data channel scheduled by the downlink control information DCI; and the network device sends the HARQ process number to the user equipment.
  • the DCI wherein the DCI includes a first field and indication information, the first field is a HARQ process number field, and the first field and the indication information jointly indicate the determined HARQ process number.
  • the HARQ process ID can be jointly indicated by the regular HARQ process number field and other indication information, so that the maximum number of HARQ processes supported by the UE can be made larger than the regular HARQ process number field without introducing a new DCI format.
  • the number of HARQ processes that can be indicated can be indicated.
  • embodiments of the present invention can save resources by avoiding introducing a new DCI format to indicate more HARQ process numbers. Overhead, increase the flexibility of resource indication.
  • a method for indicating a HARQ process ID including: receiving, by a user equipment, downlink control information DCI sent by a network device, where the DCI includes a first field and indication information, where the first field is a HARQ process number field, HARQ The process number field and the indication information jointly indicate the HARQ process number, and the HARQ process number is the number of the HARQ process corresponding to the data channel scheduled by the DCI; the user equipment determines the HARQ process ID according to the first field and the indication information.
  • the indication information is a throttling bit, wherein the throttling bit is a bit saved by reducing a number of bits of a field indicating a repetition level of the second channel in the DCI; or the indication information is a second indicated in the DCI The repetition level of the channel; or, the indication information is a bit status of a field in the DCI indicating the repetition level of the second channel.
  • the HARQ process number field by using the foregoing saving bit and the HARQ process number field to jointly indicate the HARQ process number, it is possible to avoid introducing a new DCI format and improve the utilization of the field for indicating the number of repetitions in the DCI. Therefore, the correspondence between some repetition times and the HARQ process can be restricted, and the HARQ process number is indicated by adopting such a correspondence without additional bit overhead, thereby optimizing resource utilization.
  • the repetition level as the indication information is the 4th repetition level of the second channel; or, the repetition level as the indication information is the maximum repetition level of the second channel; or,
  • the bit state of the indication information is 11; or, when the maximum number of repetitions of the second channel is less than or equal to 2, the throttling bit is 1 bit, and the number of repetitions is used to indicate the number of repetitions corresponding to the repetition level.
  • the bit state of the indication information of 11 can be applied to the case when the maximum number of repetitions is less than or equal to 4.
  • the HARQ process number indicated by the first field belongs to 0 to 2 M -1
  • the repetition level of the second channel belongs to the second repetition level set.
  • the HARQ process ID indicated by the first field belongs to 2 M to (N-1); or, when the repetition level of the second channel belongs to the first repetition level set, the HARQ process ID indicated by the first field belongs to 1 to 2 M
  • the HARQ process number indicated by the first field belongs to 2 M +1 to N; wherein the first repetition level set includes one or more repetition levels, and the second repetition level set includes One or more repetition levels, the intersection of the first repetition level set and the second repetition level set is empty, N>2 M , and M and N are positive integers.
  • the repetition level of the second channel includes a repetition level r1, a repetition level r2, a repetition level r3, and a repetition level r4, respectively corresponding to the number of repetitions of the second channel, wherein the maximum number of repetitions of the second channel is less than or equal to 1st, the first repetition level set includes a repetition level r1, and the second repetition level set includes a repetition level r2, a repetition level r3, and a repetition level r4; or, when the maximum repetition number of the second channel is less than or equal to 2, the first repetition level set The repetition level r1 and the repetition level r2 are included, and the second repetition level set includes a repetition level r3 and a repetition level r4; or, when the maximum repetition number of the second channel is less than or equal to 4, the first repetition level set includes a repetition level r1 and a repetition level.
  • R2 and repetition level r3, the second repetition level set includes a repetition level r4.
  • the HARQ process number indicated by the network device or the user equipment belongs to 0 to 2 M -1
  • the second channel When the combination of the repetition level and the bit state of the first field belongs to the second set, the HARQ process number indicated by the network device or the user equipment belongs to 2 M to (N-1); or the repetition level of the second channel and the first field
  • the combination of bit states belongs to the first set
  • the HARQ process number indicated by the network device or the user equipment belongs to 1 to 2 M
  • the combination of the repetition level of the second channel and the bit state of the first field belongs to the second set
  • the network device or The HARQ process ID indicated by the user equipment belongs to 2 M +1 to N; wherein the first set includes one or more combinations, and the second set includes one or more combinations, and the intersection of the first set and the second set is empty, N >2 M , M and N are positive integers.
  • the second channel is a physical downlink control channel, or a physical downlink shared channel, or a physical uplink shared channel.
  • the format of the DCI is DCI format 6-1A, DCI format 6-0A, DCI format 6-1B, or DCI format 6-0B; the first field is a 3-bit HARQ process number field in the DCI.
  • the application provides a network device.
  • the network device comprises means for performing the method of the first aspect.
  • the application provides a user terminal.
  • the user terminal comprises means for performing the method of the second aspect.
  • the present application provides a network device including: a memory, a transceiver, a processor, and a bus. Wherein the memory and the processor are connected by a bus, the memory is for storing instructions, the processor is configured to execute the instructions stored by the memory, and when the processor executes the instructions stored by the memory, the executing causes the processor to perform the first aspect Methods.
  • the present application provides a user equipment device comprising: a memory, a transceiver, a processor, and a bus. Wherein the memory and the processor are connected by a bus, the memory is for storing instructions, the processor is configured to execute the instructions stored by the memory, and when the processor executes the instructions stored by the memory, the executing causes the processor to perform the second aspect Methods.
  • a computer storage medium for storing a computer program comprising instructions for obtaining a method of the first aspect or any of the possible implementations of the first aspect.
  • a computer storage medium for storing a computer program comprising instructions for obtaining a method of any of the second aspect or any of the possible implementations of the second aspect.
  • FIG. 1 is a block diagram of a communication system in accordance with one embodiment of the present invention.
  • FIG. 2 is a schematic flow chart of a method of transmitting control information according to an embodiment of the present invention.
  • FIG. 3 is a schematic flowchart of a method of transmitting control information according to another embodiment of the present invention.
  • Figure 4 shows a schematic diagram of the HARQ process.
  • FIG. 5 is a schematic structural diagram of a network device according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a user equipment according to another embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a communication device according to another embodiment of the present invention.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband
  • Code Division Multiple Access GPRS (General Packet Radio Service)
  • LTE Long Term Evolution
  • LTE-A Advanced long term evolution
  • UMTS Universal Mobile Telecommunication System
  • TD-SCDMA Time Division-Synchronous Code Division Multiple Access
  • Embodiments of the present invention can be used in wireless networks of different standards.
  • a wireless access network may include different network elements in different systems.
  • the network elements of the radio access network in LTE and LTE-A include an eNB (eNodeB, an evolved base station), and the network elements of the radio access network in WCDMA include an RNC (Radio Network Controller) and a NodeB, similar to Other wireless networks such as WiMax (Worldwide Interoperability for Microwave Access), WiFi (Wireless High Fidelity), etc. may also use a scheme similar to the embodiment of the present invention, except that the relevant modules in the base station system may be different.
  • WiMax Worldwide Interoperability for Microwave Access
  • WiFi Wireless High Fidelity
  • the embodiments of the present invention are not limited, but for convenience of description, the following embodiments will be described by taking an eNodeB as an example.
  • user equipment includes but is not limited to a mobile station (MS, Mobile Station), a mobile terminal (Mobile Terminal), a mobile phone (Mobile Telephone), a mobile phone (handset). , machine type communication (MTC, Machine-Type Communications) equipment and portable equipment (portable equipment), etc.
  • the user equipment can Communicate with one or more core networks via a Radio Access Network (RAN), for example, the user equipment may be a mobile phone (or "cellular" phone), a computer with wireless communication function, etc.
  • RAN Radio Access Network
  • the user equipment may be a mobile phone (or "cellular" phone), a computer with wireless communication function, etc.
  • the device can also be a portable, pocket, handheld, computer built-in or in-vehicle mobile device.
  • the payload size of the new DCI format (format) and the payload size of the existing DCI format such as DCI format 6-1A. It is likely that the UE needs to monitor two DCI sizes if the random access response (RAR), the paging (Paging), and the MPDCCH (PDCCH for MTC) order are based on the DCI format 6-1A.
  • the size of the space is unchanged, which increases the number of times the UE blindly detects the control channel. If the number of times the UE blindly detects the control channel does not increase, the size of the search space of the UE is reduced, thereby reducing the flexibility of control channel transmission.
  • the two DCI sizes increase the size of the UE's cache, which also increases the cost of the UE. If the RAR, paging, and MPDCCH order are based on the new DCI format, the UE can monitor a DCI size, but if a RAR or paging message includes both the RAR of the Rel-13 UE and the RAR of the Rel-14 UE, Then the base station needs to send two control channels, which will increase the overhead of the system. Especially in the scenario of coverage enhancement, the control channel needs to be transmitted repeatedly many times, which greatly increases the resource overhead of the control channel transmission.
  • the embodiment of the present invention proposes a scheme for indicating a HARQ process number, which can indicate more HARQ process numbers without changing the existing DCI format, thereby avoiding the problem caused by introducing a new DCI format.
  • FIG. 1 is a block diagram of a communication system 100 in accordance with one embodiment of the present invention.
  • Communication system 100 can include UEs 110-160 and network devices 170.
  • Network device 170 can communicate with UEs 110-160 over air interfaces. Near-field communication is also possible between some UEs.
  • the network device 170 may refer to an entity on the network side for transmitting or receiving signals, for example, may be a base station such as a NodeB or an eNodeB, but embodiments of the present invention are not limited to the specific standard represented by the term, but may be similar. It is applied to other forms of base stations, such as access network equipment such as access points (APs).
  • the UE may be any terminal, for example, the UE may be a machine type communication (MTC) user equipment.
  • MTC machine type communication
  • the embodiments of the present invention are mainly applied to a long-term evolution LTE system or an advanced long-term evolution LTE-A (LTE Advanced) system, and embodiments of the present invention are not limited thereto, and embodiments of the present invention may also be applied to other communication systems. As long as there is an entity in the communication system that needs to be instructed with another The resource allocation of entity communication, while another entity needs to interpret resource allocation in some way.
  • a base station can transmit a scheduling message to one or more of UEs 110-160.
  • the UEs 140 to 160 may also constitute a communication system in which the UE 150 may transmit scheduling information to one or more UEs in the UE 140 and the UE 160. In this case, the UE 150 may also be equivalent to the present invention.
  • Network device of an embodiment
  • FIG. 2 is a schematic flow chart of a method of indicating a HARQ process number according to an embodiment of the present invention.
  • the method of FIG. 2 can be performed by the network device and user equipment of FIG.
  • the method of Figure 2 includes the following.
  • the network device determines a HARQ process ID, where the HARQ process ID is a number of the HARQ process corresponding to the data channel scheduled by the DCI.
  • the data channel can be a PDSCH or a PUSCH.
  • multi-process parallel transmission of data channels is adopted.
  • a 3-bit HARQ process number field is used to indicate up to 8 HARQ processes.
  • the maximum number of HARQ processes supported by the UE may exceed the maximum number of HARQ processes that the HARQ process number field can indicate.
  • the network device sends a DCI to the user equipment, where the DCI includes a first field and indication information, where the first field is a HARQ process number field, and the first field and the indication information jointly indicate the determined HARQ process ID.
  • the user equipment determines the HARQ process ID according to the first field and the indication information included in the received DCI.
  • the network device and the user equipment may pre-agreed to use the HARQ process number field and the indication information to jointly indicate the HARQ process number.
  • the network device may also notify the user equipment to use the HARQ process number field and the indication information to jointly indicate the HARQ process number, or notify the network device and the user equipment by using the high layer signaling to jointly indicate the HARQ process number by using the HARQ process number field and the indication information.
  • the network device may send the DCI including the bit status of the HARQ process ID field and some indication information to the user equipment, so that the user equipment receives the DCI. According to this, the corresponding HARQ process number can be determined.
  • the HARQ process number can be jointly indicated by a regular HARQ process number field and other indication information, thereby enabling the new DCI format to be introduced without introducing a new DCI format.
  • the maximum number of HARQ processes supported by the UE is greater than the number of HARQ processes that can be indicated by the regular HARQ process number field.
  • embodiments of the present invention can save resources by avoiding introducing a new DCI format to indicate more HARQ process numbers. Overhead, increase the flexibility of resource indication.
  • the indication information may be a throttling bit, wherein the throttling bit is a bit saved by reducing a number of bits of a field indicating a repetition level of the second channel in the DCI.
  • the repetition level can be used to indicate the corresponding repetition level, those skilled in the art should understand that the above-mentioned field for indicating the repetition level of the second channel can also be interpreted as a field for indicating the number of repetitions of the second channel. .
  • the channel may need to be repeatedly transmitted, and the DCI may include a field indicating the number of repetitions of the channel, that is, the number of times the channel needs to be repeatedly transmitted.
  • the field may be a field indicating the number of repetitions of the DCI subframe.
  • the number of repetitions corresponding to different repetition levels of the channel may be determined according to the maximum number of repetitions of the high-level configuration.
  • 2 bits can be used in DCI to indicate four repetition levels: r1, r2, r3, and r4.
  • the maximum number of repetitions is 1, the number of repetitions corresponding to r1 is 1, and the number of repetitions corresponding to other repetition levels is unavailable;
  • the maximum number of repetitions is 2, the number of repetitions corresponding to r1 is 1, and the number of repetitions corresponding to r2 It is 2, and the number of repetitions corresponding to other repetition levels is an unavailable state. Therefore, when the maximum number of repetitions of the second channel is less than or equal to 2, r1 and r2 can be indicated using 1 bit.
  • 1 bit can be saved for jointly indicating the HARQ process number with the HARQ process number field.
  • the bits on the first bit of the field may be used to indicate r1 and r2, and the bits on the second bit of the field are used in conjunction with the HARQ process number field to indicate the HARQ process number, and vice versa.
  • the foregoing saving bit and the HARQ process number field to jointly indicate the HARQ process number, it is possible to avoid introducing a new DCI format and improve the utilization of the field for indicating the number of repetitions in the DCI.
  • the indication information is a repetition level of the second channel indicated in the DCI.
  • the HARQ process number may be jointly indicated by using a specific combination of the repetition level of the second channel and the HARQ process number field. Since the UE is generally only available when it is not repeated. All HARQ processes can be used. Therefore, if the PDSCH associated with a certain HARQ process is repeatedly transmitted, the number of processes actually used by the UE is smaller than the maximum number of HARQ processes it supports. Therefore, it is contradictory to repeat the transmission and support the maximum number of HARQ processes. For example, the UE of Rel-13 supports up to 8 HARQ processes, assuming that the new UE needs to increase the HARQ process. The new UE supports a maximum of M HARQ processes, where M is greater than 8.
  • the base station allows the UE to use more than 8 HARQ processes, then the UE's wireless environment can be considered good, so the UE should not need to repeat. If the channel transmission of the UE needs to be repeated, the UE usually does not use all HARQ processes. Therefore, the correspondence between some repetition times and the HARQ process can be restricted, and the HARQ process number is indicated by adopting such a correspondence without additional bit overhead, thereby optimizing resource utilization.
  • the second channel may have four repetition levels n1, n2, n3, and n4 from small to large.
  • the repetition level may be the fourth repetition level of the second channel, or the repetition level of the indication information is the maximum repetition level of the second channel.
  • the indication information is a bit status of a field in the DCI indicating a repetition level of the second channel.
  • the bit status of the above indication information may be 11.
  • the number of repetitions corresponding to r1 is 1, the number of repetitions corresponding to r2 is 2, and the number of repetitions corresponding to r3 is 4, and the repetition level of r4 corresponds to The number of repetitions is unavailable.
  • the number of repetitions of r4 is available only when the maximum number of repetitions is greater than or equal to 8. Therefore, when the maximum number of repetitions is less than 4, the bit state of the above indication information may be 10 or 11.
  • the bit status of the indication information of 11 can be applied to the case where the maximum number of repetitions is less than or equal to four.
  • the HARQ process number indicated by the first field belongs to 0 to 2 M -1
  • the repetition level of the second channel belongs to the second repetition level set.
  • the HARQ process number indicated by the first field belongs to 2 M to (N-1).
  • the first repetition level set includes one or more repetition levels
  • the second repetition level set includes one or more repetition levels
  • the intersection of the first repetition level set and the second repetition level set is empty, N>2 M , M and N Is a positive integer.
  • the HARQ process number indicated by the first field belongs to 1 to 2 M
  • the repetition level of the second channel belongs to the second repetition level set.
  • the HARQ process number indicated by the first field belongs to 2 M +1 to N.
  • the first repetition level set includes one or more repetition levels
  • the second repetition level set includes one or more repetition levels
  • the intersection of the first repetition level set and the second repetition level set is empty, N>2 M , M and N Is a positive integer.
  • the repetition level of the second channel includes a repetition level r1, a repetition level r2, a repetition level r3, and a repetition level r4, which respectively correspond to the number of repetitions of the second channel.
  • the first repetition level set includes a repetition level r1, and the second repetition level set includes a repetition level r2, a repetition level r3, and a repetition level r4; or, the maximum repetition number of the second channel is less than
  • the first repetition level set includes a repetition level r1 and a repetition level r2, the second repetition level set includes a repetition level r3 and a repetition level r4; or, when the maximum repetition number of the second channel is less than or equal to 4, the first repetition The level set includes a repetition level r1, a repetition level r2, and a repetition level r3, and the second repetition level set includes a repetition level r4.
  • the HARQ process number indicated by the first field belongs to 0 to 2 M -1 as an example.
  • the 3-bit HARQ process number field in the DCI is 000-111.
  • the eight states indicate HARQ processes 0-7 respectively.
  • 000 indicates that the HARQ process is 8,001 indicating that the HARQ process is 9. Since the bit state can be selected from the bit states of the HARQ process number field in order when the increased HARQ process number is indicated, the design is simple.
  • the eight-bit HARQ process number fields 000 to 111 in the DCI indicate the HARQ processes 0 to 7, respectively. Since the bit state can be selected from the bit states of the HARQ process number field in order when the increased HARQ process number is indicated, the design is simple.
  • the repetition level belongs to the second repetition level set
  • 000 indicates that the HARQ process is 8
  • 111 indicates that the HARQ process is 9. Since the bit state indicating the HARQ process 8 and the state indicating 3 bits in the bit state of the HARQ process 9 are different, the false alarm probability indicating the HARQ process is low.
  • the HARQ process number indicated by the network device belongs to 0 to 2 M -1
  • the repetition level of the second channel is
  • the HARQ process number indicated by the network device belongs to 1 to 2 M
  • the combination of the repetition levels n1 to n3 and the bit states 000 to 111 belongs to the first set, and the repetition level n4 and the bit
  • the combination of states 000 and 111 belongs to the second set; alternatively, the combination of repetition levels n1 to n3 and bit states 000 to 111 belongs to the first set, and the combination of repetition level n4 and bit states 000 and 001 belongs to the second set.
  • the combination of the repetition levels n2 to n4 and the bit states 000 to 111 belongs to the first set, the combination of the repetition level n1 and the bit states 000 and 111 belongs to the second set; or, the repetition levels n2 to n4 and the bit state 000 to The combination of 111 belongs to the first set, and the combination of the repetition level n1 and the bit states 000 and 001 belongs to the second set.
  • the bit state is selected from the bit states of the HARQ process number field in order when the increased HARQ process number is indicated, the design is simple. Since the bit state indicating the HARQ process 8 and the state indicating 3 bits in the bit state of the HARQ process 9 are different, the false alarm probability indicating the HARQ process is low.
  • the second channel may be a physical downlink control channel, or a physical downlink shared channel, or a physical uplink shared channel.
  • the format of the DCI may be DCI format 6-1A, DCI format 6-0A, DCI format 6-1B, or DCI format 6-0B, and the first field may be a 3-bit HARQ process in DCI. Number field.
  • FIG. 3 is a schematic flowchart of a method of indicating a HARQ process number according to another embodiment of the present invention.
  • the method of Figure 3 is an example of the method of Figure 1.
  • the method of Figure 3 includes the following.
  • the network device receives high layer signaling.
  • the high layer signaling may carry the maximum number of repetitions of the channel, so that the network device determines the repetition level of the channel and the corresponding number of repetitions according to the high layer signaling.
  • the network device determines a HARQ process ID of the data channel, where the HARQ process ID is a number of the HARQ process corresponding to the data channel scheduled by the DCI.
  • the network device can determine the HARQ process number of the data channel according to the needs of the scheduling.
  • the network device determines the capability of the UE. If the capability of the UE indicates that the maximum number of supported HARQ processes does not exceed the preset threshold, step 350 is performed; otherwise, step 340 is performed.
  • the preset threshold may be the maximum number of HARQ processes that the HARQ process number field can indicate.
  • the preset threshold is equal to 8.
  • the network device sends a DCI to the UE, where the DCI includes a HARQ process number field and indication information, and the HARQ process number field and the indication information jointly indicate the determined HARQ process number.
  • the network device may determine a HARQ process number field and indication information for jointly indicating the HARQ process number according to the determined repetition level of the channel or the corresponding number of repetitions.
  • indication information for jointly indicating the HARQ process number according to the determined repetition level of the channel or the corresponding number of repetitions.
  • the network device sends a DCI to the UE, where the DCI includes a HARQ process number field, and the HARQ process number field indicates the determined HARQ process number.
  • DCI can be sent in accordance with the conventional method described in Rel-13, and will not be described again here.
  • step 370 is performed; otherwise, step 380 is performed.
  • the preset threshold may be the maximum number of HARQ processes that the HARQ process number field can indicate.
  • the preset threshold is equal to 8.
  • the UE determines the HARQ process ID according to the HARQ process number field and the indication information included in the received DCI.
  • the HARQ process number may be determined according to the correspondence between the bit state of the HARQ process number field and the combination of the indication information and the HARQ process number.
  • the UE performs data communication with the network device according to the determined HARQ process ID.
  • the UE determines a HARQ process ID according to the HARQ process number field included in the received DCI.
  • the number of the indicated maximum HARQ processes may be determined according to the bit status of the HARQ process number field to perform data communication with the network device according to the determined HARQ process number.
  • the embodiment of the present invention may select whether to use the HARQ process number field and the indication information to jointly indicate the HARQ process number or the HARQ process number field to indicate the HARQ process number separately according to the maximum number of HARQ processes supported by the UE, thereby improving system compatibility.
  • Figure 4 shows a schematic diagram of the HARQ process.
  • the number of the maximum number of HARQ processes supported by the conventional UE is 8.
  • the maximum number of HARQ processes supported by the UE may be increased.
  • the number of maximum HARQ processes supported by the UE is increased from 8 to 10.
  • the UE can use all downlink subframes to receive the PDSCH, so that the peak rate of the UE does not decrease.
  • the 0th subframe and the 1st subframe on the PDCCH schedule the 2nd subframe and the 3rd subframe on the PDSCH
  • the 6th subframe and the 7th subframe on the PUCCH transmit the 2nd subframe and the PD subframe
  • An acknowledgement frame of 3 subframes for example, ACK or NACK.
  • the PDCCH may be an MPDCCH.
  • the following describes how to use the HARQ process number field and indication information to jointly indicate the HARQ process number in conjunction with a specific example.
  • the UE may reuse at least one of the DCI format 6-1A, the DCI format 6-0A, the DCI format 6-1B, and the DCI format 6-0B of the Rel-13, where the HARQ process number field includes 3 bits, and the maximum Indicates 8 processes.
  • the maximum number of HARQ processes supported by the UE is 10.
  • the above indication information may be a throttling bit of a field indicating a repetition level of a channel in a DCI, a bit state of a field indicating a repetition level of a channel, or a repetition level of a channel indicated by a DCI.
  • the HARQ process ID may be jointly indicated by using a throttling bit of a field indicating a repetition level of the control channel and a HARQ process number field in the DCI indication.
  • the repetition level of the control channel is specifically used to indicate the number of repetitions of the DCI subframe.
  • the transmission of the control channel can have four repetition levels: r1, r2, r3, and r4, corresponding to the four repetitions of the control channel, for example, can correspond to four repetitions of the DCI subframe.
  • Table 1 Mapping of the maximum number of repetitions and repetition levels of the control channel
  • the repetition level of the control channel is the one of r1, r2, r3, and r4.
  • 00 refers to the repetition level r1
  • 01 refers to the repetition level r2
  • 10 refers to the repetition level r3
  • 11 refers to the repetition level r4.
  • Table 2 Mapping of Bit Status of Repeat Level and Repeat Level Fields
  • Table 3 assume that the maximum number of HARQ processes supported by the UE is 10 and 10 HARQs.
  • the process number (or index) is 0 to 9.
  • Table 3 shows four methods for indicating or mapping HARQ process numbers.
  • the throttling bits are located at the highest bit of 4 bits, and the bit state 0 of the thump bits is combined with the HARQ process number field for jointly indicating the HARQ process number originally indicated by the HARQ process number field, and the bit state of the throttling bit.
  • the throttling bits may be located anywhere in the 4 bits, and may also be bit state 0 and HARQ processes of the throttling bits.
  • the number field is combined with the HARQ process number originally indicated by the HARQ process number field, and the bit status 0 of the surplus bit is used in combination with the HARQ process number field to indicate more HARQ process numbers.
  • mapping methods 1,0000 to 0111 indicate HARQ processes 0 to 7, respectively, while 1000 indicates that the HARQ process is 8, and 1001 indicates that the HARQ process is 9.
  • the eight states respectively indicate HARQ processes 0 to 7, and 1000 indicates that the HARQ process is 8, and 1111 indicates that the HARQ process is 9.
  • the difference between the mapping method 2 and the mapping method 1 is that the bit state indicating the HARQ process 8 in the mapping method 2 is different from the state in which the bit state indicating the HARQ process 9 is 3 bits, thus indicating that the false alarm probability of the HARQ process is low.
  • the bit state indicating the HARQ process 8 and the state indicating that only one bit of the bit state of the HARQ process 9 are different, and thus, the false alarm probability indicating the HARQ process is larger than that of the mapping method 2.
  • the eight states 000 to 111 corresponding to the three bits of the HARQ process number field in the Rel-13 DCI indicate the HARQ processes 0 to 7, respectively. If the bit state of one bit saved is 1, the 3-bit 000 corresponding to the HARQ process number field in the Rel-13 DCI indicates the HARQ process 8, and the 3-bit 001 corresponding to the HARQ process number field in the Rel-13 DCI indicates the HARQ. Process 9.
  • mapping method 4 For the mapping method 4, if the bit state of one bit saved is 0, the eight states of 000 to 111 corresponding to the three bits of the HARQ process number field in the Rel-13 DCI indicate the HARQ processes 0 to 7, respectively. If the bit state of one bit saved is 1, the 3-bit 000 corresponding to the HARQ process number field in the Rel-13 DCI indicates the HARQ process 8, and the 3-bit 111 corresponding to the HARQ process number field in the Rel-13 DCI indicates the HARQ. Process 9. The difference between the mapping method 3 and the mapping method 4 is similar to the difference between the mapping method 2 and the mapping method 1, and will not be described again here.
  • Table 3 Mapping or indication of HARQ process number
  • the bit status and the HARQ process number field of the field indicating the repetition level of the control channel in the DCI indication may be used to jointly indicate the HARQ process number.
  • the repetition level of the control channel is specifically used to refer to the number of repetitions of the DCI subframe.
  • the HARQ process number can be indicated according to the bit status corresponding to r2, r3, and r4. For example, if the repetition level is r1, the 3-bit HARQ process number field in the DCI indicates the HARQ process number in 0-7. If the repetition level is any of r2, r3, and r4, then the 3-bit HARQ process number field in the DCI indicates the additional HARQ process number. The additional HARQ process number is combined with the repetition level to indicate a HARQ process number with a value greater than 7.
  • the HARQ process number can be indicated according to the bit states corresponding to r3 and r4. For example, if the repetition level is any of r1 and r2, the 3-bit HARQ process number field in the DCI indicates the HARQ process number in 0-7. If the repetition level is r3 or r4, the 3-bit HARQ process number field in the DCI indicates the additional HARQ process number.
  • the additional HARQ process number refers to the HARQ process ID with a value greater than 7.
  • the HARQ process number can be indicated according to the bit state corresponding to r4. For example, if the repetition level is any of r1, r2, and r3, the 3-bit HARQ process number field in the DCI indicates the HARQ process number in 0-7. If the repetition level is r4, the 3-bit HARQ process number field in the DCI indicates the additional HARQ process number.
  • the additional HARQ process number refers to the HARQ process ID with a value greater than 7.
  • the repetition level field in the DCI indicates a repetition level with no value
  • the number of repetitions of the control channel of the DCI is 1, that is, the control channel is mapped and transmitted only in one subframe.
  • Table 4 Mapping or indication of HARQ process number
  • Table 4 shows the method of indicating or mapping the HARQ process number.
  • the eight states of the 3-bit HARQ process number fields 000 to 111 in the DCI indicate the HARQ processes 0 to 7, respectively.
  • the DCI subframe repetition level indicates rj
  • 000 indicates that the HARQ process is 8,001 indicating that the HARQ process is 9.
  • ri and rj are different.
  • ri is the repeating level of values in Table 1
  • rj is the repeating level in Table 1 that has no value or is not applicable.
  • the eight states of the 3-bit HARQ process number fields 000 to 111 in the DCI indicate the HARQ processes 0 to 7, respectively.
  • the 3-bit HARQ process number field 000 in the DCI indicates that the HARQ process is 8
  • 111 indicates that the HARQ process is 9.
  • ri and rj are different repetition levels.
  • ri is the repeating level of values in Table 1
  • ri is the repeating level in Table 1 that has no value or is not applicable.
  • mapping method 5 The difference between the mapping method 5 and the mapping method 6 is similar to the difference between the mapping method 2 and the mapping method 1, and will not be described again here.
  • the bit state of the frequency hopping flag field in the DCI may also be fixed to reduce the false alarm probability.
  • the bit state of the frequency hopping flag field in the DCI may be fixed to zero.
  • the HARQ process ID may be jointly indicated by using the repetition level of the data channel and the HARQ process number field in the DCI indication.
  • the repetition level of the data channel may specifically refer to the number of repetitions of the data channel.
  • the HARQ process ID may be determined according to the correspondence between the repetition level of the PDSCH or the number of repetitions and the HARQ process number.
  • the present embodiment is described by taking the PDSCH as an example.
  • the embodiment of the present invention is not limited thereto, and the HARQ process ID may be determined according to the correspondence between the repetition level or the repetition number of other channels or information and the HARQ process number.
  • the channels for repeated transmission may be PUSCH, PUCCH, PDCCH, MPDCCH, etc., as long as the repetition levels of these channels have similar characteristics.
  • either the control channel or the data channel may require repeated transmissions.
  • 2 bits are used in the DCI indication to indicate the number of repetitions of the PDSCH.
  • more HARQ process numbers can be indicated by some restrictions on the number of repetitions of the channel or information or the combination of the repetition level and the HARQ process number.
  • the UE can use all HARQ processes only when no repeated transmission is performed. If the PDSCH associated with a certain HARQ process needs to be repeatedly transmitted, the number of processes actually used by the UE is smaller than the maximum supported process. number. Therefore, it is contradictory to repeat and support the maximum number of HARQ processes.
  • the Rel-13 FDD or HD-FDD UE supports up to 8 HARQ processes, assuming that the new UE needs to increase the HARQ process. For example, the new UE supports a maximum of M HARQ processes, where M is greater than 8.
  • the base station allows the UE to use more than 8 HARQ processes, the UE's wireless environment can be considered good, so the UE should not need to repeat. If the UE needs to repeat the transmission channel, the UE usually does not use all HARQ processes. Therefore, the correspondence between some repetition times and the HARQ process can be restricted, and the HARQ process number is indicated by these correspondences. This optimizes resource utilization without additional bit overhead.
  • the conventional PDSCH has 4 repetition levels, namely n1, n2, n3 and n4.
  • the DCI includes a 2-bit field to indicate the repetition level of the PDSCH. For example, 00 corresponds to n1, 01 corresponds to n2, 10 corresponds to n3, and 11 corresponds to n4.
  • each FDD or HD-FDD UE can support a maximum of 8 HARQ processes, and each HARQ process has no constraint relationship with the repetition level of the PDSCH. That is, any HARQ process may correspond to a repetition level of n1, n2, n3, n4.
  • each FDD or HD-FDD UE can support a maximum of 10 HARQ processes, and therefore, some methods of the repetition level of the PDSCH associated with certain HARQ processes can be restricted according to the method of this embodiment. In this way, the specific HARQ process number can be determined according to the repetition level of the PDSCH and the 3-bit state of the HARQ process number field in the DCI.
  • n1 to n3 may correspond to any one of the HARQ processes 0 to 7.
  • n4 may correspond to any one of the HARQ processes 1 to 6, and the 3-bit state of the HARQ process number field in the DCI is 001 to 110.
  • the HARQ process indicated by the base station for the UE is 8. If the DCI indicates that the repetition level of the PDSCH is n4 (or the 2 bit state indicating the repetition level of the PDSCH in the DCI corresponds to the bit state indicating n4), and the 3-bit state of the HARQ process number field in the DCI is 000 (or 111) Then, the HARQ process indicated by the base station for the UE is 8. If the DCI indicates that the repetition level of the PDSCH is n4 (or the 2 bit state indicating the repetition level of the PDSCH in the DCI corresponds to the bit state indicating n4), and the 3-bit state of the HARQ process number field in the DCI is 111 (or 000) Then, the HARQ process indicated by the base station for the UE is 9.
  • the HARQ process number is 8 or 9
  • the bit status indicating n4 is borrowed, and the actual repetition level of the PDSCH associated with the HARQ process 8 or 9 is not n4. Therefore, it may be specified that the PDSCH associated with the HARQ process 8 or 9 has no repeated transmission, or the value of the actual repetition level of the PDSCH associated with the HARQ process 8 or 9 is equal to one.
  • Table 5 Mapping or indication of HARQ process number
  • the above method of indicating the HARQ process number is only an example.
  • the binding relationship between the repetition level and the HARQ process number can be flexibly specified, and the actual HARQ process number is determined according to the binding relationship and the 3-bit HARQ process.
  • the following table gives another method for determining the actual HARQ process number based on the repetition level and the 3-bit HARQ process.
  • the actual HARQ process ID may also be determined according to the repetition level of the control channel and the 3-bit HARQ process number field, and the method is similar to the above table, and details are not described herein again.
  • the frequency hopping marker in the DCI can also be fixed.
  • the bit state of the field to reduce the false alarm probability For example, when the HARQ process number indicated by the base station is 8 or 9, the bit state of the frequency hopping flag field in the DCI may be fixed to zero.
  • FIG. 5 is a schematic structural diagram of a network device 500 according to an embodiment of the present invention.
  • Network device 500 can include a determination module 510 and a transmission module 520.
  • the determining module 510 is configured to determine a HARQ process ID, where the HARQ process ID is a number of a HARQ process corresponding to the data channel scheduled by the downlink control information DCI.
  • the sending module 520 is configured to send a DCI to the user equipment, where the DCI includes a first field and indication information, where the first field is a HARQ process number field, and the first field and the indication information jointly indicate the determined HARQ process number.
  • the HARQ process number may be jointly indicated by a regular HARQ process number field and other indication information, so that the maximum number of HARQ processes supported by the UE can be made larger than the regular HARQ process number field without introducing a new DCI format.
  • the number of HARQ processes that can be indicated may be jointly indicated by a regular HARQ process number field and other indication information, so that the maximum number of HARQ processes supported by the UE can be made larger than the regular HARQ process number field without introducing a new DCI format.
  • embodiments of the present invention can save resources by avoiding introducing a new DCI format to indicate more HARQ process numbers. Overhead, increase the flexibility of resource indication.
  • the indication information is a throttling bit, wherein the throttling bit is a bit saved by reducing the number of bits of the field indicating the repetition level of the second channel in the DCI.
  • the throttling bit is 1 bit, and the number of repetitions is used to indicate the number of repetitions corresponding to the repetition level.
  • the indication information is a repetition level of the second channel indicated in the DCI.
  • the repetition level as the indication information is the 4th repetition level of the second channel, or the repetition level as the indication information is the maximum repetition level of the second channel.
  • the indication information is a bit status of a field in the DCI indicating a repetition level of the second channel.
  • the bit status as the indication information is 11.
  • the HARQ process number indicated by the first field belongs to 0 to 2 M -1
  • the repetition level of the second channel belongs to the second repetition level set.
  • the HARQ process number indicated by the first field belongs to 2 M to (N-1).
  • the first repetition level set includes one or more repetition levels
  • the second repetition level set includes one or more repetition levels
  • the intersection of the first repetition level set and the second repetition level set is empty, N>2 M , M and N Is a positive integer.
  • the HARQ process number indicated by the first field belongs to 1 to 2 M
  • the repetition level of the second channel belongs to the second repetition level set.
  • the repetition level of the second channel includes a repetition level r1, a repetition level r2, a repetition level r3, and a repetition level r4, respectively corresponding to the number of repetitions of the second channel, wherein the maximum number of repetitions of the second channel is less than or equal to 1st, the first repetition level set includes a repetition level r1, and the second repetition level set includes a repetition level r2, a repetition level r3, and a repetition level r4; or, when the maximum repetition number of the second channel is less than or equal to 2, the first repetition level set The repetition level r1 and the repetition level r2 are included, and the second repetition level set includes a repetition level r3 and a repetition level r4; or, when the maximum repetition number of the second channel is less than or equal to 4, the first repetition level set includes a repetition level r1 and a repetition level.
  • R2 and repetition level r3, the second repetition level set includes a repetition level r4.
  • the HARQ process number indicated by the network device belongs to 0 to 2 M -1
  • the repetition level of the second channel is
  • the HARQ process number indicated by the network device belongs to 2 M to (N-1).
  • the first set includes one or more combinations
  • the second set includes one or more combinations
  • the intersection of the first set and the second set is empty, N>2 M
  • the HARQ process number indicated by the network device belongs to 1 to 2 M
  • the repetition level of the second channel when the combination of the bit states of the first field belongs to the second set, the HARQ process number indicated by the network device belongs to 2 M +1 to N.
  • the second channel is a physical downlink control channel, or a physical downlink shared channel, or a physical uplink shared channel.
  • the format of the DCI is DCI format 6-1A, DCI format 6-0A, DCI format 6-1B, or DCI format 6-0B, where the first field is a 3-bit HARQ process number field in the DCI .
  • FIG. 6 is a schematic structural diagram of a user equipment 600 according to an embodiment of the present invention.
  • User equipment 600 can include a receiving module 610 and a determining module 620.
  • the receiving module 610 is configured to receive downlink control information DCI sent by the network device, where the DCI includes a first field and indication information, where the first field is a HARQ process number field, the HARQ process number field and the indication information jointly indicate a HARQ process number, and the HARQ process The number is the number of the HARQ process corresponding to the data channel scheduled by the DCI.
  • the determining module 620 is configured to determine the HARQ process ID according to the first field and the indication information.
  • the HARQ process number may be jointly indicated by a regular HARQ process number field and other indication information, so that the maximum number of HARQ processes supported by the UE can be made larger than the regular HARQ process number field without introducing a new DCI format.
  • the number of HARQ processes that can be indicated may be jointly indicated by a regular HARQ process number field and other indication information, so that the maximum number of HARQ processes supported by the UE can be made larger than the regular HARQ process number field without introducing a new DCI format.
  • embodiments of the present invention can save resources by avoiding introducing a new DCI format to indicate more HARQ process numbers. Overhead, increase the flexibility of resource indication.
  • the indication information is a throttling bit, wherein the throttling bit is a bit saved by reducing the number of bits of the field indicating the repetition level of the second channel in the DCI.
  • the throttling bit is 1 bit, and the number of repetitions is used to indicate the number of repetitions corresponding to the repetition level.
  • the indication information is a repetition level of the second channel indicated in the DCI.
  • the repetition level as the indication information is the 4th repetition level of the second channel, or the repetition level as the indication information is the maximum repetition level of the second channel.
  • the indication information is a bit status of a field in the DCI indicating a repetition level of the second channel.
  • the bit status as the indication information is 11.
  • the HARQ process number indicated by the first field belongs to 0 to 2 M -1
  • the repetition level of the second channel belongs to the second repetition level set.
  • the HARQ process number indicated by the first field belongs to 2 M to (N-1).
  • the first repetition level set includes one or more repetition levels
  • the second repetition level set includes one or more repetition levels
  • the intersection of the first repetition level set and the second repetition level set is empty, N>2 M , M and N Is a positive integer.
  • the HARQ process number indicated by the first field belongs to 1 to 2 M
  • the repetition level of the second channel belongs to the second repetition level set.
  • the repetition level of the second channel includes a repetition level r1, a repetition level r2, a repetition level r3, and a repetition level r4, respectively corresponding to the number of repetitions of the second channel, wherein the maximum number of repetitions of the second channel is less than or equal to 1st, the first repetition level set includes a repetition level r1, and the second repetition level set includes a repetition level r2, a repetition level r3, and a repetition level r4; or, when the maximum repetition number of the second channel is less than or equal to 2, the first repetition level set The repetition level r1 and the repetition level r2 are included, and the second repetition level set includes a repetition level r3 and a repetition level r4; or, when the maximum repetition number of the second channel is less than or equal to 4, the first repetition level set includes a repetition level r1 and a repetition level.
  • R2 and repetition level r3, the second repetition level set includes a repetition level r4.
  • the HARQ process number indicated by the network device belongs to 0 to 2 M -1
  • the repetition level of the second channel is
  • the HARQ process number indicated by the network device belongs to 2 M to (N-1).
  • the first set includes one or more combinations
  • the second set includes one or more combinations
  • the intersection of the first set and the second set is empty, N>2 M
  • the HARQ process number indicated by the network device belongs to 1 to 2 M
  • the repetition level of the second channel when the combination of the bit states of the first field belongs to the second set, the HARQ process number indicated by the network device belongs to 2 M +1 to N.
  • the second channel is a physical downlink control channel, or a physical downlink shared channel, or a physical uplink shared channel.
  • the format of the DCI is DCI format 6-1A, DCI format 6-0A, DCI format 6-1B, or DCI format 6-0B, where the first field is a 3-bit HARQ process number field in the DCI .
  • FIG. 7 is a block diagram showing the structure of a communication device 700 according to another embodiment of the present invention.
  • Communication device 700 can be a network device or a user device.
  • Communication device 700 is shown in FIG. 7, and communication device 700 includes a processor 710, a transceiver 720, a memory 730, and a bus 740.
  • the processor 710 and the memory 730 are connected by a bus 740, where the memory 730 is used to store instructions, and the processor 710 is configured to execute instructions stored in the memory 730. To perform the method of the embodiment of Figures 5 and 6.
  • the processor 710 may be a central processing unit (“CPU"), and the processor 710 may also be other general-purpose processors, digital signal processors (DSP). ), application specific integrated circuits (ASICs), off-the-shelf programmable gate arrays (FPGAs) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, and the like.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the memory 730 can include read only memory and random access memory and provides instructions and data to the processor.
  • a portion of the memory may also include a non-volatile random access memory.
  • the memory can also store information of the device type.
  • the bus 740 may include a power bus, a control bus, a status signal bus, and the like in addition to the data bus. However, for the sake of clarity, the various buses are labeled as buses in the figure.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product.
  • the technical solution of the present invention which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
  • the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

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Abstract

提供了一种指示HARQ进程号的方法、用户设备和网络设备。该方法包括网络设备确定HARQ进程号,HARQ进程号是下行控制信息DCI所调度的数据信道对应的HARQ进程的编号;网络设备向用户设备发送DCI,其中DCI包括第一字段和指示信息,第一字段是HARQ进程编号字段,第一字段和所述指示信息联合指示了所确定的HARQ进程号。本发明的技术方案能够在不引入新的DCI格式的情况下使得UE支持的最大HARQ进程数目大于常规HARQ进程编号字段所能指示的HARQ进程数目。

Description

指示HARQ进程号的方法、网络设备和用户设备 技术领域
本发明实施例涉及通信领域,并且更具体地,涉及一种指示HARQ进程号的方法、网络设备和用户设备。
背景技术
在第三代伙伴计划协议(3GPP,3rd Generation Partnership Project)Rel-13版本中,可以利用下行控制信息(DCI,downlink control information)来指示HARQ进程号或索引。例如,用户设备(UE,User Equipment)支持的最大HARQ进程数目为8个,DCI包含一个3比特的HARQ进程编号字段,该HARQ进程编号字段用于指示8个HARQ进程号。HARQ进程号是该DCI所调度的物理下行共享信道(PDSCH,Physical Downlink Shared Channel)或物理上行共享信道(PUSCH,Physical Uplink Shared Channel)对应的HARQ进程的编号。
在Rel-13中,若DCI格式(format)6-1A的DCI传输的结束子帧的子帧时刻为子帧n,则该DCI所调度的PDSCH传输的起始子帧可以为n+k,这里k>=2。DCI传输的结束子帧与该DCI所调度的PDSCH传输的起始子帧之间至少间隔一个子帧的偏移,即DCI跨子帧调度PDSCH。由于跨子帧调度,若UE支持的最大HARQ进程数目是8个,UE只能最多使用80%的下行子帧来接收PDSCH,这样UE的峰值速率会降低。
为了使UE能利用所有的下行子帧,可以增加UE支持的最大HARQ进程数目。例如,在Rel-14中,可以将UE支持的最大HARQ进程数目从8个增加到10个。当UE支持的最大HARQ进程数目是10个时,UE就可以使用所有的下行子帧来接收PDSCH,这样UE的峰值速率不会降低。
然而,当UE的最大HARQ进程数目是10个时,能够指示DCI中的3比特的HARQ进程号字段无法指示10个进程。虽然可以考虑采用更多的比特来指示更多的进程号,但这可能需要引入新的DCI format。
因此,亟待提出一种能够指示更多HARQ进程号而不改变现有DCI格式的方案。
发明内容
本发明的实施例提供一种指示HARQ进程号的方法、网络设备和用户设备,能够指示更多HARQ进程号而不改变现有DCI格式。
第一方面,提供了一种指示HARQ进程号的方法,包括:网络设备确定HARQ进程号,HARQ进程号是下行控制信息DCI所调度的数据信道对应的HARQ进程的编号;网络设备向用户设备发送DCI,其中DCI包括第一字段和指示信息,第一字段是HARQ进程编号字段,第一字段和指示信息联合指示了所确定的HARQ进程号。
基于本申请的技术方案,可以通过常规HARQ进程编号字段和其它指示信息联合指示HARQ进程号,从而能够在不引入新的DCI格式的情况下使得UE支持的最大HARQ进程数目大于常规HARQ进程编号字段所能指示的HARQ进程数目。
另外,由于采用新的格式会降低控制信道传输的灵活性和增加控制信道传输的资源开销,因此,本发明的实施例通过避免引入新的DCI格式来指示更多的HARQ进程号,能够节省资源开销,提高资源指示的灵活性。
在第二方面,提供了一种指示HARQ进程号的方法,包括:用户设备接收网络设备发送的下行控制信息DCI,其中DCI包括第一字段和指示信息,第一字段是HARQ进程编号字段,HARQ进程编号字段和指示信息联合指示了HARQ进程号,HARQ进程号是DCI所调度的数据信道对应的HARQ进程的编号;用户设备根据第一字段和指示信息确定HARQ进程号。
在某些实施例中,指示信息为节余比特,其中节余比特是通过降低DCI中指示第二信道的重复级别的字段的比特数所节省的比特;或者,指示信息是DCI中所指示的第二信道的重复级别;或者,指示信息是DCI中指示第二信道的重复级别的字段的比特状态。
根据本发明的实施例利用上述节余比特与HARQ进程编号字段联合指示HARQ进程号,既能够避免引入新的DCI格式,又能提高DCI中用于指示重复次数的字段的利用率。因此,可以限制某些重复次数和HARQ进程的对应关系,通过采用这样的对应关系来指示HARQ进程号,而无需额外的比特开销,从而优化了资源利用。
在某些实施例中,作为指示信息的重复级别是第二信道的第4个重复级别;或者,作为指示信息的重复级别是第二信道的最大重复级别;或者,作 为指示信息的比特状态是11;或者,第二信道的最大重复次数小于等于2时,节余比特为1个比特,重复次数用于指示重复级别对应的重复次数。指示信息的比特状态为11可以应用到当最大重复次数小于等于4的情形。
在某些实施例中,第二信道的重复级别属于第一重复级别集合时,第一字段指示的HARQ进程号属于0至2M-1,第二信道的重复级别属于第二重复级别集合时,第一字段指示的HARQ进程号属于2M至(N-1);或者,第二信道的重复级别属于第一重复级别集合时,第一字段指示的HARQ进程号属于1至2M,第二信道的重复级别属于第二重复级别集合时,第一字段指示的HARQ进程号属于2M+1至N;其中,第一重复级别集合包括一个或多个重复级别,第二重复级别集合包括一个或多个重复级别,第一重复级别集合和第二重复级别集合的交集为空,N>2M,M和N为正整数。
在某些实施例中,第二信道的重复级别包括重复级别r1、重复级别r2、重复级别r3和重复级别r4,分别对应于第二信道的重复次数,其中第二信道的最大重复次数小于等于1时,第一重复级别集合包括重复级别r1,第二重复级别集合包括重复级别r2、重复级别r3和重复级别r4;或,第二信道的最大重复次数小于等于2时,第一重复级别集合包括重复级别r1和重复级别r2,第二重复级别集合包括重复级别r3和重复级别r4;或,当第二信道的最大重复次数小于等于4时,第一重复级别集合包括重复级别r1、重复级别r2和重复级别r3,第二重复级别集合包括重复级别r4。
在某些实施例中,第二信道的重复级别和第一字段的比特状态的组合属于第一集合时,网络设备或用户设备指示的HARQ进程号属于0至2M-1,第二信道的重复级别和第一字段的比特状态的组合属于第二集合时,网络设备或用户设备指示的HARQ进程号属于2M至(N-1);或者,第二信道的重复级别和第一字段的比特状态的组合属于第一集合时,网络设备或用户设备指示的HARQ进程号属于1至2M,第二信道的重复级别和第一字段的比特状态的组合属于第二集合时,网络设备或用户设备指示的HARQ进程号属于2M+1至N;其中,第一集合包括一个或多个组合,第二集合包括一个或多个组合,第一集合和第二集合的交集为空,N>2M,M和N为正整数。
在某些实施例中,M=3,N=10。
在某些实施例中,第二信道是物理下行控制信道,或物理下行共享信道,或物理上行共享信道。
在某些实施例中,DCI的格式是DCI格式6-1A、DCI格式6-0A、DCI格式6-1B、或DCI格式6-0B;第一字段是DCI中的3比特HARQ进程编号字段。
在第三方面,本申请提供了一种网络设备。该网络设备包括用于执行第一方面的方法的模块。
在第四方面,本申请提供了一种用户终端。该用户终端包括用于执行第二方面的方法的模块。
在第五方面,本申请提供了一种网络设备,包括:存储器、收发器、处理器和总线。其中,存储器和处理器通过总线相连,存储器用于存储指令,该处理器用于执行该存储器存储的指令,并且当该处理器执行该存储器存储的指令时,该执行使得该处理器执行第一方面的方法。
在第六方面,本申请提供了一种用户设备设备,包括:存储器、收发器、处理器和总线。其中,存储器和处理器通过总线相连,存储器用于存储指令,该处理器用于执行该存储器存储的指令,并且当该处理器执行该存储器存储的指令时,该执行使得该处理器执行第二方面的方法。
在第七方面,提供了一种计算机存储介质,用于存储计算机程序,该计算机程序包括用于获取第一方面或第一方面的任意可能的实现方式中的方法的指令。
在第八方面,提供了一种计算机存储介质,用于存储计算机程序,该计算机程序包括用于获取第二方面或第二方面的任意可能的实现方式中的方法的指令。
附图说明
为了更清楚地说明本发明实施例的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动性的前提下,还可以根据这些附图获得其他的附图。
图1是根据本发明一个实施例的通信系统的架构图。
图2是根据本发明一个实施例的传输控制信息的方法的示意性流程图。
图3是根据本发明另一实施例的传输控制信息的方法的示意性流程图。
图4示出了HARQ进程的示意图。
图5是根据本发明一个实施例的网络设备的结构示意图。
图6是根据本发明另一实施例的用户设备的结构示意图。
图7是根据本发明另一实施例的通信设备的结构示意图。
具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
应理解,本发明的技术方案可以应用于各种通信系统,例如:GSM(Global System of Mobile communication,全球移动通讯)系统、CDMA(Code Division Multiple Access,码分多址)系统、WCDMA(,Wideband Code Division Multiple Access,宽带码分多址)系统、GPRS(General Packet Radio Service,通用分组无线业务)、LTE(Long Term Evolution,长期演进)系统、LTE-A(Advanced long term evolution,先进的长期演进)系统、UMTS(Universal Mobile Telecommunication System,通用移动通信系统)、TD-SCDMA(Time Division-Synchronous Code Division Multiple Access,时分同步码分多址)等,本发明实施例并不限定,但为了描述方便,本发明实施例将以LTE网络为例进行说明。
本发明实施例可以用于不同的制式的无线网络。无线接入网络在不同的系统中可包括不同的网元。例如,LTE和LTE-A中无线接入网络的网元包括eNB(eNodeB,演进型基站),WCDMA中无线接入网络的网元包括RNC(Radio Network Controller,无线网络控制器)和NodeB,类似地,WiMax(Worldwide Interoperability for Microwave Access,全球微波互联接入),WiFi(无线高保真)等其它无线网络也可以使用与本发明实施例类似的方案,只是基站系统中的相关模块可能有所不同,本发明实施例并不限定,但为描述方便,下述实施例将以eNodeB为例进行说明。
还应理解,在本发明实施例中,用户设备(UE,User Equipment)包括但不限于移动台(MS,Mobile Station)、移动终端(Mobile Terminal)、移动电话(Mobile Telephone)、手机(handset)、机器类型通讯(MTC,Machine-Type Communications)设备及便携设备(portable equipment)等,该用户设备可 以经无线接入网(RAN,Radio Access Network)与一个或多个核心网进行通信,例如,用户设备可以是移动电话(或称为“蜂窝”电话)、具有无线通信功能的计算机等,用户设备还可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置。
为了指示更的HARQ进程号,虽然可以通过引入新的DCI格式来实现,但新的DCI格式(format)的净荷大小(payload size)与现有DCI格式例如DCI format 6-1A的净荷大小很可能不同,这样,如果随机接入响应(RAR,Radom Access Response)、寻呼(Paging)、MPDCCH(PDCCH for MTC)order基于DCI format 6-1A,则UE需要监测两种DCI大小,如果搜索空间大小不变,这样会增加UE盲检测控制信道的次数。如果UE盲检测控制信道的次数不增加,那么降低UE的搜索空间的大小,从而降低了控制信道传输的灵活性。两种DCI大小会增加UE的缓存的大小,这样也增加了UE的成本。如果RAR、寻呼、MPDCCH order基于新的DCI format,这样UE可以监测一种DCI大小,但是如果一个RAR或寻呼消息中既包含了Rel-13UE的RAR,也包含了Rel-14UE的RAR,那么基站需要发送两个控制信道,这样会增加系统的开销。特别是在覆盖增强的场景下,控制信道需要重复传输很多次,这样会大大增加控制信道传输的资源开销。
因此,本发明的实施例提出了一种指示HARQ进程号的方案,能够指示更多HARQ进程号而不改变现有DCI格式,从而避免引入新的DCI格式所造成的问题。
图1是根据本发明一个实施例的通信系统100的架构图。
通信系统100可以包括UE 110至160以及网络设备170。网络设备170可以通过空口与UE 110至160通信。而某些UE之间也可以进行近距离通信。网络设备170可以指网络侧的一种用来发送或接收信号的实体,例如,可以是NodeB或eNodeB之类的基站,但是本发明的实施例不限于该术语代表的具体制式,而是可以类似地应用于其他形式的基站,例如,接入点(AP)等接入网设备。UE可以是任意的终端,例如,UE可以是机器类通信(MTC)的用户设备。
本发明的实施例主要应用于长期演进LTE系统或高级的长期演进LTE-A(LTE Advanced)系统,本发明的实施例并不限于此,本发明的实施例也可以应用于其它的通信系统,只要该通信系统中存在实体需要指示与另一 个实体通信的资源分配,而另一个实体需要通过某种方式解读资源分配即可。
在通信系统100中,基站可以发送调度消息给UE 110至160中的一个或多个UE。应理解,UE140至160也可以组成一个通信系统,在该通信系统中,UE150可以发送调度信息给UE140和UE160中的一个或多个UE,在这种情况下,UE 150也可以相当于是本发明实施例的网络设备。
图2是根据本发明一个实施例的指示HARQ进程号的方法的示意性流程图。图2的方法可以由图1中的网络设备和用户设备执行。图2的方法包括如下内容。
210,网络设备确定HARQ进程号,HARQ进程号是DCI所调度的数据信道对应的HARQ进程的编号。
例如,数据信道可以是PDSCH或PUSCH。为提高通信效率,采用多进程并行传输数据信道。例如,在常规DCI中,采用3比特的HARQ进程编号字段指示最多8个HARQ进程。而在本发明的实施例中,UE支持的最大HARQ进程数目可以超过HARQ进程编号字段所能指示的最大HARQ进程数目。
220,网络设备向用户设备发送DCI,其中DCI包括第一字段和指示信息,第一字段是HARQ进程编号字段,第一字段和指示信息联合指示了所确定的HARQ进程号。
230,用户设备根据接收到DCI中包含的第一字段和指示信息确定HARQ进程号。
具体而言,网络设备和用户设备可以预先约定采用HARQ进程编号字段和指示信息联合指示HARQ进程号。也可以由网络设备通知用户设备采用HARQ进程编号字段和指示信息联合指示HARQ进程号,或者由通过高层信令通知网络设备和用户设备采用HARQ进程编号字段和指示信息联合指示HARQ进程号。这样,在HARQ进程编号字段无法指示的需要指示HARQ进程号时,网络设备可以向用户设备发送包含HARQ进程编号字段的某种比特状态和某种指示信息的DCI,使得用户设备接收到该DCI时,可以据此确定对应的HARQ进程号。
根据本发明的实施例,可以通过常规HARQ进程编号字段和其它指示信息联合指示HARQ进程号,从而能够在不引入新的DCI格式的情况下使 得UE支持的最大HARQ进程数目大于常规HARQ进程编号字段所能指示的HARQ进程数目。
另外,由于采用新的格式会降低控制信道传输的灵活性和增加控制信道传输的资源开销,因此,本发明的实施例通过避免引入新的DCI格式来指示更多的HARQ进程号,能够节省资源开销,提高资源指示的灵活性。
根据本发明的实施例,上述指示信息可以为节余比特,其中节余比特是通过降低DCI中指示第二信道的重复级别的字段的比特数所节省的比特。这里,由于重复级别可以用来表示对应的重复等级,因此,本领域技术人员应理解,上述用于指示第二信道的重复级别的字段也可以解释为用于指示第二信道的重复次数的字段。
具体而言,在增强覆盖的场景下,信道可能需要重复传输,而在DCI中可以包括用于指示信道的重复次数的字段,即指示该信道需要被重复传输的次数。例如,该字段可以是用于指示DCI子帧的重复次数的字段。进一步,可以根据高层配置的最大重复次数确定信道的不同重复级别对应的重复次数。
以Rel-13中的控制信道为例,例如,DCI中可以采用2比特来指示四种重复级别:r1、r2、r3和r4。当最大重复次数为1时,r1对应的重复次数为1,而其它重复级别对应的重复次数为不可用状态;当最大重复次数为2时,r1对应的重复次数为1,r2对应的重复次数为2,而其它重复级别对应的重复次数为不可用状态。因此,第二信道的最大重复次数小于等于2时,使用1个比特就可以指示r1和r2。这样,可以节省1个比特用于与HARQ进程编号字段联合指示HARQ进程号。例如,可以采用该字段第一位上的比特指示r1和r2,而采用该字段第二位上的比特与HARQ进程编号字段联合指示HARQ进程号,反之亦然。
根据本发明的实施例利用上述节余比特与HARQ进程编号字段联合指示HARQ进程号,既能够避免引入新的DCI格式,又能提高DCI中用于指示重复次数的字段的利用率。
可替代地,作为另一实施例,指示信息是DCI中所指示的第二信道的重复级别。
具体来说,可以利用第二信道的重复级别与HARQ进程编号字段的特定组合来联合指示HARQ进程号。由于UE一般只有在不重复的时候才有可 能使用所有的HARQ进程,因此,若某个HARQ进程关联的PDSCH被重复传输,则UE实际使用的进程数小于其所支持的最大HARQ进程数目。因此,重复传输和支持最大的HARQ进程数目是相互矛盾的。例如,Rel-13的UE支持最多8个HARQ进程,假设新的UE需要增加HARQ进程。新的UE支持最大M个HARQ进程,这里M大于8。如果基站允许UE使用超过8个HARQ进程,则可以认为UE的无线环境是好的,因此UE应该不需要重复。如果UE的信道传输需要重复,则UE通常不会使用所有的HARQ进程。因此,可以限制某些重复次数和HARQ进程的对应关系,通过采用这样的对应关系来指示HARQ进程号,而无需额外的比特开销,从而优化了资源利用。
例如,第二信道可以有从小到大四个重复级别n1、n2、n3、n4,重复级别越大,对应的重复次数也越大,即第4个重复级别n4对应的重复次数最大。由于上述重复次数与最大HARQ进程数目的矛盾,所以当最大HARQ进程数目超过HARQ进程编号字段所能指示的HARQ进程数目时,重复级别4可以理解为不用于指示重复次数,因此,上述指示信息的重复级别可以是第二信道的第4个重复级别,或者上述指示信息的重复级别是第二信道的最大重复级别。
可替代地,作为另一实施例,指示信息是DCI中指示第二信道的重复级别的字段的比特状态。例如,上述指示信息的比特状态可以为11。
仍以Rel-13中的控制信道为例,当最大重复次数为4时,r1对应的重复次数为1,r2对应的重复次数为2,r3对应的重复次数为4,而r4重复级别对应的重复次数为不可用状态。只有当最大重复次数大于或等于8时,r4的重复次数才均为可用状态。因此,当最大重复次数小于4时,上述指示信息的比特状态可以为10或11。而指示信息的比特状态为11可以应用到当最大重复次数小于等于4的情形。
根据本发明的实施例,第二信道的重复级别属于第一重复级别集合时,第一字段指示的HARQ进程号属于0至2M-1,第二信道的重复级别属于第二重复级别集合时,第一字段指示的HARQ进程号属于2M至(N-1)。第一重复级别集合包括一个或多个重复级别,第二重复级别集合包括一个或多个重复级别,第一重复级别集合和第二重复级别集合的交集为空,N>2M,M和N为正整数。
可替代地,作为另一实施例,第二信道的重复级别属于第一重复级别集合时,第一字段指示的HARQ进程号属于1至2M,第二信道的重复级别属于第二重复级别集合时,第一字段指示的HARQ进程号属于2M+1至N。第一重复级别集合包括一个或多个重复级别,第二重复级别集合包括一个或多个重复级别,第一重复级别集合和第二重复级别集合的交集为空,N>2M,M和N为正整数。
具体而言,第二信道的重复级别包括重复级别r1、重复级别r2、重复级别r3和重复级别r4,分别对应于第二信道的重复次数。第二信道的最大重复次数小于等于1时,第一重复级别集合包括重复级别r1,第二重复级别集合包括重复级别r2、重复级别r3和重复级别r4;或,第二信道的最大重复次数小于等于2时,第一重复级别集合包括重复级别r1和重复级别r2,第二重复级别集合包括重复级别r3和重复级别r4;或,当第二信道的最大重复次数小于等于4时,第一重复级别集合包括重复级别r1、重复级别r2和重复级别r3,第二重复级别集合包括重复级别r4。
以M=3,N=10且第一字段指示的HARQ进程号属于0至2M-1为例,当重复级别属于第一重复级别集合时,DCI中的3比特HARQ进程编号字段000~111八个状态分别指示了HARQ进程0~7。当重复级别属于第二重复级别集合时,在DCI中的3比特HARQ进程编号字段中,000指示了HARQ进程是8,001指示了HARQ进程是9。由于在指示增加的HARQ进程号时,可以按照顺序从HARQ进程编号字段的比特状态中选择比特状态,因此,设计简单。当重复级别属于第一重复级别集合时,DCI中的3比特HARQ进程编号字段000~111八个状态分别指示了HARQ进程0~7。由于在指示增加的HARQ进程号时,可以按照顺序从HARQ进程编号字段的比特状态中选择比特状态,因此,设计简单。
可替代地,当重复级别属于第二重复级别集合时,在DCI中的3比特HARQ进程编号字段中,000指示了HARQ进程是8,111指示了HARQ进程是9。由于指示HARQ进程8的比特状态和指示HARQ进程9的比特状态中有3个比特的状态不同,这样指示HARQ进程的虚警概率较低。
根据本发明的实施例,第二信道的重复级别和第一字段的比特状态的组合属于第一集合时,网络设备指示的HARQ进程号属于0至2M-1,第二信道的重复级别和第一字段的比特状态的组合属于第二集合时,网络设备指示 的HARQ进程号属于2M至(N-1);其中,第一集合包括一个或多个组合,第二集合包括一个或多个组合,第一集合和第二集合的交集为空,N>2M,M和N为正整数。例如,M=3,N=10。
可替代地,作为另一实施例,第二信道的重复级别和第一字段的比特状态的组合属于第一集合时,网络设备指示的HARQ进程号属于1至2M,第二信道的重复级别和第一字段的比特状态的组合属于第二集合时,网络设备指示的HARQ进程号属于2M+1至N;其中,第一集合包括一个或多个组合,第二集合包括一个或多个组合,第一集合和第二集合的交集为空,N>2M,M和N为正整数。例如,M=3,N=10。
以M=3,N=10且第一字段指示的HARQ进程号属于0至2M-1为例,重复级别n1至n3和比特状态000至111的组合属于第一集合,重复级别n4和比特状态000和111的组合属于第二集合;或者,重复级别n1至n3和比特状态000至111的组合属于第一集合,重复级别n4和比特状态000和001的组合属于第二集合。
可替代地,重复级别n2至n4和比特状态000至111的组合属于第一集合,重复级别n1和比特状态000和111的组合属于第二集合;或者,重复级别n2至n4和比特状态000至111的组合属于第一集合,重复级别n1和比特状态000和001的组合属于第二集合。
在上述实现方式中,由于在指示增加的HARQ进程号时,可以按照顺序从HARQ进程编号字段的比特状态中选择比特状态,因此,设计简单。由于指示HARQ进程8的比特状态和指示HARQ进程9的比特状态中有3个比特的状态不同,这样指示HARQ进程的虚警概率较低。
根据本发明的实施例,上述第二信道可以是物理下行控制信道,或物理下行共享信道,或物理上行共享信道。
根据本发明的实施例,上述DCI的格式可以是DCI格式6-1A、DCI格式6-0A、DCI格式6-1B、或DCI格式6-0B,第一字段可以是DCI中的3比特HARQ进程编号字段。
下面结合具体例子,更加详细地描述本发明的实施例。
图3是根据本发明另一实施例的指示HARQ进程号的方法的示意性流程图。图3的方法是图1的方法的例子。图3的方法包括如下内容。
310,网络设备接收高层信令。
例如,该高层信令可以携带信道的最大重复次数,以便网络设备根据该高层信令确定信道的重复等级和对应的重复次数。
320,网络设备确定数据信道的HARQ进程号,HARQ进程号是DCI所调度的数据信道对应的HARQ进程的编号。
例如,网络设备可以根据调度的需要确定数据信道的HARQ进程号。
330,网络设备确定UE的能力,如果UE的能力指示了支持的最大HARQ进程数目没有超过预设的阈值,执行步骤350;否则执行步骤340。
例如,该预设的阈值可以是HARQ进程编号字段所能指示的最大HARQ进程数目。例如,预设的阈值等于8。
340,网络设备向UE发送DCI,其中DCI包括HARQ进程编号字段和指示信息,HARQ进程编号字段和指示信息联合指示了所确定的HARQ进程号。
例如,网络设备可以根据确定的信道的重复等级或对应的重复次数确定用于联合指示HARQ进程号的HARQ进程编号字段和指示信息。具体描述可以参照下面的实施例一至实施例三,为了避免重复,在此不再赘述。
350,网络设备向UE发送DCI,其中DCI包括HARQ进程编号字段,HARQ进程编号字段指示了所确定的HARQ进程号。
例如,可以按照Rel-13中描述的常规方法发送DCI,这里不再赘述。
360,如果UE支持的最大HARQ进程数目超过预设的阈值,则执行步骤370;否则,执行步骤380。
例如,该预设的阈值可以是HARQ进程编号字段所能指示的最大HARQ进程数目。例如,预设的阈值等于8。
370,UE根据接收到DCI中包含的HARQ进程编号字段和指示信息确定HARQ进程号。
如果UE支持的最大HARQ进程数目超过HARQ进程编号字段所能指示的最大HARQ进程数目,则可以根据HARQ进程编号字段的比特状态和指示信息的组合与HARQ进程编号的对应关系确定HARQ进程号。UE根据确定的HARQ进程号与网络设备进行数据通信。
380,UE根据接收到DCI中包含的HARQ进程编号字段确定HARQ进程号。
如果UE支持的最大HARQ进程数目不超过HARQ进程编号字段所能 指示的最大HARQ进程数目,则可以根据HARQ进程编号字段的比特状态确定HARQ进程号,以便根据确定的HARQ进程号与网络设备进行数据通信。
本发明的实施例可以根据UE支持的最大HARQ进程数目来选择是否采用HARQ进程编号字段和指示信息联合指示HARQ进程号还是采用HARQ进程编号字段单独指示HARQ进程号,从而提高了系统的兼容性。
图4示出了HARQ进程的示意图。
常规UE支持的最大HARQ进程数目为8,为了使UE能够利用所有的下行子帧,可以增加UE支持的最大HARQ进程数目。例如,将UE支持的最大HARQ进程数目从8个增加到10个。参见图4,当UE的最大HARQ进程数目是10个时,UE就可以使用所有的下行子帧来接收PDSCH,这样UE的峰值速率不会降低。例如,PDCCH上的第0子帧和第1子帧调度PDSCH上的第2子帧和第3子帧,PUCCH上的第6子帧和第7子帧发送PDSCH上的第2子帧和第3子帧的确认帧,例如,ACK或NACK。
应理解,在版本13中,PDCCH可以为MPDCCH。
下面结合具体例子,更加详细地描述如何采用HARQ进程编号字段和指示信息来联合指示HARQ进程号。
在以下实施例中,以UE重用Rel-13的遗留(legacy)DCI为例对本发明的实施例进行详细说明。例如,UE可以重用Rel-13的DCI format 6-1A、DCI format 6-0A、DCI format 6-1B、DCI format 6-0B中的至少一个,其中该HARQ进程编号字段包括3个比特,最多可以指示8个进程,UE支持的最大HARQ进程数目为10个。上述指示信息可以是DCI中用于指示信道的重复级别的字段的节余比特、用于指示信道的重复级别的字段的比特状态或者DCI指示的信道的重复级别。
实施例一
在本实施例中,以控制信道为例,可以利用DCI指示中用于指示控制信道的重复级别的字段的节余比特和HARQ进程编号字段来联合指示HARQ进程号。这里,控制信道的重复级别具体用于指示DCI子帧的重复次数。
如下表1所示,控制信道的传输可以有4个重复级别:r1、r2、r3和r4,对应于控制信道的4种重复次数,例如,可以对应于DCI子帧的4种重复次 数。网络设备可以根据高层配置的最大重复次数rmax确定r1、r2、r3和r4的取值。针对不同的最大重复次数,同一重复级别可以对应于不同的重复次数。例如,当rmax=1时,r1=1,r2、r3和r4是没有取值的,即为不可用(non-applicable)状态。当rmax=2时,r1=1,r2=2,r3和r4为不可用状态,当rmax=4时,r1=1,r2=2,r3=4,r4为不可用状态。rmax≥8,r1=rmax/8,r2=rmax/4,r3=rmax/2,r4=rmax
表1:控制信道的最大重复次数与重复级别的映射
rmax r1 r2 r3 r4
1 1 - - -
2 1 2 - -
4 1 2 4 -
>=8 rmax/8 rmax/4 rmax/2 rmax
如下表2所示,DCI中可以有2个比特指示控制信道的重复级别是r1、r2、r3和r4中的那一个重复级别。例如,00指重复级别r1,01指重复级别r2,10指重复级别r3,11指重复级别r4。
表2:重复级别与重复级别字段的比特状态的映射
R 重复级别字段的比特状态
r1 00
r2 01
r3 10
r4 11
根据表1,当rmax小于等于2时,r3和r4实际上是没有取值的,即为不可用状态。此时,可以只用一个比特来指示DCI子帧的重复级别。相对于Rel-13DCI中的2个比特指示DCI子帧的重复级别,这样就节省出来一个比特。然后将节省出来的1个节余比特与常规DCI中原本指示HARQ进程号的3比特结合起来,构成4比特。利用这4个比特指示PDSCH的HARQ进程号。如表3举例,可以有不同的方法利用这4个比特指示PDSCH的HARQ进程号。
表3中,假设UE支持的最大HARQ进程数目为10个,且10个HARQ 进程号(或索引)为0~9。表3给出了4种指示或者映射HARQ进程号的方法。在表3中,节余比特位于4个比特的最高位,并且节余比特的比特状态0与HARQ进程编号字段结合用于联合指示原本由HARQ进程编号字段单独指示的HARQ进程号,节余比特的比特状态1与HARQ进程编号字段结合用于指示更多的HARQ进程号,但本技术人员应理解的是,节余比特可以位于4个比特的任意位置,而且也可以是节余比特的比特状态0与HARQ进程编号字段结合用于原本由HARQ进程编号字段单独指示的HARQ进程号,节余比特的比特状态0与HARQ进程编号字段结合用于指示更多的HARQ进程号。
对于映射方法1,0000~0111这八个状态分别指示了HARQ进程0~7,而1000指示了HARQ进程是8,而1001指示了HARQ进程是9。
对于映射方法2,0000~0111这八个状态分别指示了HARQ进程0~7,而1000指示了HARQ进程是8,而1111指示了HARQ进程是9。映射方法2和映射方法1的区别是:映射方法2中指示HARQ进程8的比特状态和指示HARQ进程9的比特状态中有3个比特的状态不同,这样指示HARQ进程的虚警概率较低。映射方法1中指示HARQ进程8的比特状态和指示HARQ进程9的比特状态中只有1个比特的状态不同,这样,与映射方法2相比,指示HARQ进程的虚警概率较大。
对于映射方法3,如果节省出来的一个比特的比特状态为0,则Rel-13DCI中HARQ进程编号字段对应的3比特的000~111这八个状态分别指示了HARQ进程0~7。如果节省出来的一个比特的比特状态为1,则Rel-13DCI中HARQ进程编号字段对应的3比特的000指示了HARQ进程8,Rel-13DCI中HARQ进程编号字段对应的3比特的001指示了HARQ进程9。
对于映射方法4,如果节省出来的一个比特的比特状态为0,则Rel-13DCI中HARQ进程编号字段对应的3比特的000~111这八个状态分别指示了HARQ进程0~7。如果节省出来的一个比特的比特状态为1,则Rel-13DCI中HARQ进程编号字段对应的3比特的000指示了HARQ进程8,Rel-13DCI中HARQ进程编号字段对应的3比特的111指示了HARQ进程9。映射方法3和映射方法4的区别类似于映射方法2和映射方法1的区别,这里不再赘述。
表3:HARQ进程号的映射或指示
Figure PCTCN2016101169-appb-000001
实施例二
在本实施例中,可以利用DCI指示中用于指示控制信道的重复级别的字段的比特状态和HARQ进程编号字段来联合指示HARQ进程号。这里,控制信道的重复级别具体用于指DCI子帧的重复次数。
根据表1,当rmax=1时,r1=1、r2、r3和r4为不可用(non-applicable)状态。当rmax=2时,r3和r4为不可用状态,当rmax=4时,r4为不可用状态。这样,可以根据处于不可用状态的重复级别对应的比特状态与DCI指示中的HARQ进程编号字段来联合指示HARQ进程号。
若r1=1,可以根据r2、r3和r4对应的比特状态来指示HARQ进程号。例如,若重复级别为r1时,DCI中的3比特HARQ进程编号字段指示的是0~7中的HARQ进程号。若重复级别为r2、r3和r4中的任何一个时,那么DCI中的3比特HARQ进程编号字段指示的是附加的HARQ进程号。附加的HARQ进程号与重复级别结合来指示取值大于7的HARQ进程号。
若rmax=2,可以根据r3和r4对应的比特状态来指示HARQ进程号。例如,若重复级别为r1和r2中的任何一个时,DCI中的3比特HARQ进程编号字段指示的是0~7中的HARQ进程号。若重复级别为r3或r4,那么DCI中的3比特HARQ进程编号字段指示的是附加的HARQ进程号。附加的HARQ 进程号指的是取值大于7的HARQ进程号。
若rmax=4,可以根据r4对应的比特状态来指示HARQ进程号。例如,若重复级别为r1、r2和r3中的任何一个时,DCI中的3比特HARQ进程编号字段指示的是0~7中的HARQ进程号。若重复级别为r4,那么DCI中的3比特HARQ进程编号字段指示的是附加的HARQ进程号。附加的HARQ进程号指的是取值大于7的HARQ进程号。
需要指出的是,如果DCI中的重复级别字段指示的是一个没有取值的重复级别,那么该DCI的控制信道的重复次数是1,即该控制信道只在一个子帧内映射和传输。
表4:HARQ进程号的映射或指示
Figure PCTCN2016101169-appb-000002
表4中,假设UE支持的最大HARQ进程为10个,且10个HARQ进程号(或索引)为0~9。表4给出了指示或者映射HARQ进程号的方法。
对于映射方法5,当重复级别为ri时,DCI中的3比特HARQ进程编号字段000~111这八个状态分别指示了HARQ进程0~7。当DCI子帧重复级别指示的是rj时,在DCI中的3比特HARQ进程编号字段中,000指示了HARQ进程是8,001指示了HARQ进程是9。这里ri和rj是不同的。特别地,ri是表1中有值的重复级别,rj是表1中没有值或不可应用的重复级别。
对于映射方法6,当DCI子帧重复级别指示的是ri时,DCI中的3比特HARQ进程编号字段000~111这八个状态分别指示了HARQ进程0~7。当 重复级别指示的是rj时,DCI中的3比特HARQ进程编号字段000指示了HARQ进程是8,111指示了HARQ进程是9。这里ri和rj是不同的重复级别。特别地,ri是表1中有值的重复级别,ri是表1中没有值或不可应用的重复级别。
映射方法5和映射方法6的区别类似于映射方法2和映射方法1的区别,这里不再赘述。
需要说明的是,在应用本实施例方法时,还可以固定DCI中的跳频标记字段的比特状态,以降低虚警概率。例如,当基站指示的HARQ进程号是8或9时,可以将DCI中的跳频标记字段的比特状态固定为0。
实施例三
在本实施例中,可以利用DCI指示中用于指示的数据信道的重复级别和HARQ进程编号字段来联合指示HARQ进程号。这里,数据信道的重复级别具体可以指数据信道的重复次数。
本实施例可以根据PDSCH的重复级别或重复次数与HARQ进程号的对应关系,确定HARQ进程号。
应理解,本实施例是以PDSCH为例进行说明,本发明的实施例并不限于此,也可以根据其它信道或信息的重复级别或重复次数与HARQ进程号的对应关系来确定HARQ进程号。例如,重复传输的信道可以是PUSCH、PUCCH、PDCCH、MPDCCH等,只要这些信道的重复级别具有类似的特点。
在覆盖增强下,控制信道或数据信道都可能需要重复传输。例如,在DCI指示中采用2比特指示PDSCH的重复次数。
PDSCH的重复级别(DCI Format 6-1A)
Figure PCTCN2016101169-appb-000003
本实施例通过对信道或信息的重复次数或重复级别与HARQ进程号的组合的一些限制,可以指示更多的HARQ进程号。通常,UE只有在不进行重复传输的时候才有可能使用所有的HARQ进程。若某个HARQ进程关联的PDSCH需要进行重复传输,则UE实际用的进程数小于支持的最大进程 数目。因此,重复和支持最大的HARQ进程数是相互矛盾的。Rel-13FDD或HD-FDD UE支持最多8个HARQ进程,假设新的UE需要增加HARQ进程。例如,新的UE支持最大M个HARQ进程,这里M大于8。如果基站允许UE使用超过8个HARQ进程,可以认为UE的无线环境是好的,因此UE应该不需要重复。如果UE需要重复传输信道,则UE通常不会使用所有的HARQ进程。因此,可以限制某些重复次数和HARQ进程的对应关系,通过这些对应关系来指示HARQ进程号。这样无需额外的比特开销,优化资源利用。
下面以UE可以支持最大10个HARQ进程为例进行说明。常规PDSCH有4个重复级别,即n1、n2、n3和n4。DCI包括2比特的字段用来指示PDSCH的重复级别。例如,00对应于n1,01对应于n2,10对应于n3,11对应于n4。在Rel-13中,每个FDD或HD-FDD UE可以支持最大8个HARQ进程,并且每个HARQ进程与PDSCH的重复级别没有约束关系。即,任何一个HARQ进程都可能对应n1,n2,n3,n4中的一个重复级别。在Rel-14中,每个FDD或HD-FDD UE可以支持最大10个HARQ进程,因此,可以按照本实施例的方法对某些HARQ进程所关联的PDSCH的重复级别进行一些约束。这样,可以根据PDSCH的重复级别和DCI中HARQ进程编号字段的3比特状态来确定具体的HARQ进程号。
如表5所示,假设n1~n3(即n1、n2、n3)可以对应于HARQ进程0~7中的任何一个HARQ进程。而n4可以对应于HARQ进程1~6中的任何一个HARQ进程,并且DCI中HARQ进程编号字段的3比特状态为001~110。
如果DCI指示PDSCH的重复级别是n4(或DCI中指示PDSCH的重复级别的2个比特状态对应的是指示n4的比特状态),且DCI中HARQ进程编号字段的3比特状态为000(或111),则基站为UE指示的HARQ进程是8。如果DCI指示PDSCH的重复级别是n4(或DCI中指示PDSCH的重复级别的2个比特状态对应的是指示n4的比特状态),且DCI中HARQ进程编号字段的3比特状态为111(或000),则基站为UE指示的HARQ进程是9。需要说明的是,当HARQ进程号是8或9时,只是借用了指示n4的比特状态,HARQ进程8或9关联的PDSCH的实际重复级别并不是n4。因此,可以规定HARQ进程8或9关联的PDSCH没有重复传输,或者,HARQ进程8或9关联的PDSCH的实际重复级别的值等于1。
表5:HARQ进程号的映射或指示
Figure PCTCN2016101169-appb-000004
当然,上述指示HARQ进程号的方法只是举例。可以灵活规定重复级别和HARQ进程号之间的绑定关系,进而根据这种绑定关系和3比特的HARQ进程来确定实际的HARQ进程号。例如,下表给出了另一种根据重复级别和3比特的HARQ进程来确定实际的HARQ进程号的方法。
Figure PCTCN2016101169-appb-000005
当然也可以根据控制信道的重复级别和3比特的HARQ进程编号字段来确定实际的HARQ进程号,其方法类似于上述表格,这里不再赘述。
需要说明的是,在应用本实施例方法时,还可以固定DCI中的跳频标记 字段的比特状态,以降低虚警概率。例如,当基站指示的HARQ进程号是8或9时,可以将DCI中的跳频标记字段的比特状态固定为0。
上面描述了根据本发明实施例的指示HARQ进程号的方法,下面分别结合图5至图7描述根据本发明实施例的网络设备和用户设备。
图5是根据本发明一个实施例的网络设备500的结构示意图。网络设备500可以包括确定模块510和发送模块520。
确定模块510用于确定HARQ进程号,HARQ进程号是下行控制信息DCI所调度的数据信道对应的HARQ进程的编号。发送模块520用于向用户设备发送DCI,其中DCI包括第一字段和指示信息,第一字段是HARQ进程编号字段,第一字段和指示信息联合指示了所确定的HARQ进程号。
根据本发明的实施例,可以通过常规HARQ进程编号字段和其它指示信息联合指示HARQ进程号,从而能够在不引入新的DCI格式的情况下使得UE支持的最大HARQ进程数目大于常规HARQ进程编号字段所能指示的HARQ进程数目。
另外,由于采用新的格式会降低控制信道传输的灵活性和增加控制信道传输的资源开销,因此,本发明的实施例通过避免引入新的DCI格式来指示更多的HARQ进程号,能够节省资源开销,提高资源指示的灵活性。
根据本发明的实施例,指示信息为节余比特,其中节余比特是通过降低DCI中指示第二信道的重复级别的字段的比特数所节省的比特。第二信道的最大重复次数小于等于2时,节余比特为1个比特,重复次数用于指示重复级别对应的重复次数。
可替代地,作为另一实施例,指示信息是DCI中所指示的第二信道的重复级别。作为指示信息的重复级别是第二信道的第4个重复级别,或者,作为指示信息的重复级别是第二信道的最大重复级别。
可替代地,作为另一实施例,指示信息是DCI中指示第二信道的重复级别的字段的比特状态。作为指示信息的比特状态是11。
根据本发明的实施例,第二信道的重复级别属于第一重复级别集合时,第一字段指示的HARQ进程号属于0至2M-1,第二信道的重复级别属于第二重复级别集合时,第一字段指示的HARQ进程号属于2M至(N-1)。第一重复级别集合包括一个或多个重复级别,第二重复级别集合包括一个或多个重复级别,第一重复级别集合和第二重复级别集合的交集为空,N>2M,M和 N为正整数。
可替代地,作为另一实施例,第二信道的重复级别属于第一重复级别集合时,第一字段指示的HARQ进程号属于1至2M,第二信道的重复级别属于第二重复级别集合时,第一字段指示的HARQ进程号属于2M+1至N。例如,M=3,N=10。
根据本发明的实施例,第二信道的重复级别包括重复级别r1、重复级别r2、重复级别r3和重复级别r4,分别对应于第二信道的重复次数,其中第二信道的最大重复次数小于等于1时,第一重复级别集合包括重复级别r1,第二重复级别集合包括重复级别r2、重复级别r3和重复级别r4;或,第二信道的最大重复次数小于等于2时,第一重复级别集合包括重复级别r1和重复级别r2,第二重复级别集合包括重复级别r3和重复级别r4;或,当第二信道的最大重复次数小于等于4时,第一重复级别集合包括重复级别r1、重复级别r2和重复级别r3,第二重复级别集合包括重复级别r4。
根据本发明的实施例,第二信道的重复级别和第一字段的比特状态的组合属于第一集合时,网络设备指示的HARQ进程号属于0至2M-1,第二信道的重复级别和第一字段的比特状态的组合属于第二集合时,网络设备指示的HARQ进程号属于2M至(N-1)。第一集合包括一个或多个组合,第二集合包括一个或多个组合,第一集合和第二集合的交集为空,N>2M,M和N为正整数。例如,M=3,N=10。
可替代地,作为另一实施例,第二信道的重复级别和第一字段的比特状态的组合属于第一集合时,网络设备指示的HARQ进程号属于1至2M,第二信道的重复级别和第一字段的比特状态的组合属于第二集合时,网络设备指示的HARQ进程号属于2M+1至N。
根据本发明的实施例,第二信道是物理下行控制信道,或物理下行共享信道,或物理上行共享信道。
根据本发明的实施例,DCI的格式是DCI格式6-1A、DCI格式6-0A、DCI格式6-1B、或DCI格式6-0B,其中第一字段是DCI中的3比特HARQ进程编号字段。
网络设备500的模块的操作和功能可以参考上述图2的方法,为了避免重复,在此不再赘述。
图6是根据本发明一个实施例的用户设备600的结构示意图。用户设备 600可以包括接收模块610和确定模块620。
接收模块610用于接收网络设备发送的下行控制信息DCI,其中DCI包括第一字段和指示信息,第一字段是HARQ进程编号字段,HARQ进程编号字段和指示信息联合指示了HARQ进程号,HARQ进程号是DCI所调度的数据信道对应的HARQ进程的编号。确定模块620用于根据第一字段和指示信息确定HARQ进程号。
根据本发明的实施例,可以通过常规HARQ进程编号字段和其它指示信息联合指示HARQ进程号,从而能够在不引入新的DCI格式的情况下使得UE支持的最大HARQ进程数目大于常规HARQ进程编号字段所能指示的HARQ进程数目。
另外,由于采用新的格式会降低控制信道传输的灵活性和增加控制信道传输的资源开销,因此,本发明的实施例通过避免引入新的DCI格式来指示更多的HARQ进程号,能够节省资源开销,提高资源指示的灵活性。
根据本发明的实施例,指示信息为节余比特,其中节余比特是通过降低DCI中指示第二信道的重复级别的字段的比特数所节省的比特。第二信道的最大重复次数小于等于2时,节余比特为1个比特,重复次数用于指示重复级别对应的重复次数。
可替代地,作为另一实施例,指示信息是DCI中所指示的第二信道的重复级别。作为指示信息的重复级别是第二信道的第4个重复级别,或者,作为指示信息的重复级别是第二信道的最大重复级别。
可替代地,作为另一实施例,指示信息是DCI中指示第二信道的重复级别的字段的比特状态。作为指示信息的比特状态是11。
根据本发明的实施例,第二信道的重复级别属于第一重复级别集合时,第一字段指示的HARQ进程号属于0至2M-1,第二信道的重复级别属于第二重复级别集合时,第一字段指示的HARQ进程号属于2M至(N-1)。第一重复级别集合包括一个或多个重复级别,第二重复级别集合包括一个或多个重复级别,第一重复级别集合和第二重复级别集合的交集为空,N>2M,M和N为正整数。
可替代地,作为另一实施例,第二信道的重复级别属于第一重复级别集合时,第一字段指示的HARQ进程号属于1至2M,第二信道的重复级别属于第二重复级别集合时,第一字段指示的HARQ进程号属于2M+1至N。例 如,M=3,N=10。
根据本发明的实施例,第二信道的重复级别包括重复级别r1、重复级别r2、重复级别r3和重复级别r4,分别对应于第二信道的重复次数,其中第二信道的最大重复次数小于等于1时,第一重复级别集合包括重复级别r1,第二重复级别集合包括重复级别r2、重复级别r3和重复级别r4;或,第二信道的最大重复次数小于等于2时,第一重复级别集合包括重复级别r1和重复级别r2,第二重复级别集合包括重复级别r3和重复级别r4;或,当第二信道的最大重复次数小于等于4时,第一重复级别集合包括重复级别r1、重复级别r2和重复级别r3,第二重复级别集合包括重复级别r4。
根据本发明的实施例,第二信道的重复级别和第一字段的比特状态的组合属于第一集合时,网络设备指示的HARQ进程号属于0至2M-1,第二信道的重复级别和第一字段的比特状态的组合属于第二集合时,网络设备指示的HARQ进程号属于2M至(N-1)。第一集合包括一个或多个组合,第二集合包括一个或多个组合,第一集合和第二集合的交集为空,N>2M,M和N为正整数。例如,M=3,N=10。
可替代地,作为另一实施例,第二信道的重复级别和第一字段的比特状态的组合属于第一集合时,网络设备指示的HARQ进程号属于1至2M,第二信道的重复级别和第一字段的比特状态的组合属于第二集合时,网络设备指示的HARQ进程号属于2M+1至N。
根据本发明的实施例,第二信道是物理下行控制信道,或物理下行共享信道,或物理上行共享信道。
根据本发明的实施例,DCI的格式是DCI格式6-1A、DCI格式6-0A、DCI格式6-1B、或DCI格式6-0B,其中第一字段是DCI中的3比特HARQ进程编号字段。
用户设备600的模块的操作和功能可以参考上述图2的方法,为了避免重复,在此不再赘述。
图7是根据本发明的另一实施例的通信设备700的结构示意图。通信设备700可以是网络设备或用户设备。
通信设备700如图7所示,通信设备700包括:处理器710、收发器720、存储器730和总线740。其中,处理器710和存储器730通过总线740相连,存储器730用于存储指令,该处理器710用于执行该存储器730存储的指令, 以执行图5和图6的实施例的方法。
还应理解,在本发明实施例中,该处理器710可以是中央处理单元(Central Processing Unit,简称为“CPU”),该处理器710还可以是其他通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现成可编程门阵列(FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
该存储器730可以包括只读存储器和随机存取存储器,并向处理器提供指令和数据。存储器的一部分还可以包括非易失性随机存取存储器。例如,存储器还可以存储设备类型的信息。
该总线740除包括数据总线之外,还可以包括电源总线、控制总线和状态信号总线等。但是为了清楚说明起见,在图中将各种总线都标为总线。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本发明的范围。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的系统、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
在本申请所提供的几个实施例中,应该理解到,所揭露的系统、装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本发明各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本发明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本发明各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(ROM,Read-Only Memory)、随机存取存储器(RAM,Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述,仅为本发明的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本发明的保护范围之内。因此,本发明的保护范围应以权利要求的保护范围为准。

Claims (38)

  1. 一种指示混合自动重发请求HARQ进程号的方法,其特征在于,包括:
    网络设备确定所述HARQ进程号,所述HARQ进程号是下行控制信息DCI所调度的数据信道对应的HARQ进程的编号;
    网络设备向用户设备发送所述DCI,其中所述DCI包括第一字段和指示信息,所述第一字段是HARQ进程编号字段,所述第一字段和所述指示信息联合指示了所确定的所述HARQ进程号。
  2. 根据权利要求1所述的方法,其特征在于,
    所述指示信息为节余比特,其中所述节余比特是通过降低所述DCI中指示第二信道的重复级别的字段的比特数所节省的比特;或者,
    所述指示信息是所述DCI中所指示的第二信道的重复级别;或者,
    所述指示信息是所述DCI中指示第二信道的重复级别的字段的比特状态。
  3. 根据权利要求2所述的方法,其特征在于,
    作为所述指示信息的重复级别是所述第二信道的第4个重复级别;或者,
    作为所述指示信息的重复级别是所述第二信道的最大重复级别;或者,
    作为所述指示信息的比特状态是11;或者,
    所述第二信道的最大重复次数小于等于2时,所述节余比特为1个比特,所述重复次数用于指示重复级别对应的重复次数。
  4. 根据权利要求2或3所述的方法,其特征在于,
    所述第二信道的重复级别属于第一重复级别集合时,所述第一字段指示的HARQ进程号属于0至2M-1,所述第二信道的重复级别属于第二重复级别集合时,所述第一字段指示的HARQ进程号属于2M至(N-1);或者,
    所述第二信道的重复级别属于第一重复级别集合时,所述第一字段指示的HARQ进程号属于1至2M,所述第二信道的重复级别属于第二重复级别集合时,所述第一字段指示的HARQ进程号属于2M+1至N;
    其中,所述第一重复级别集合包括一个或多个重复级别,所述第二重复级别集合包括一个或多个重复级别,所述第一重复级别集合和所述第二重复级别集合的交集为空,N>2M,M和N为正整数。
  5. 根据权利要求4所述的方法,其特征在于,所述第二信道的重复级别包括重复级别r1、重复级别r2、重复级别r3和重复级别r4,分别对应于所述第二信道的重复次数,
    其中所述第二信道的最大重复次数小于等于1时,所述第一重复级别集合包括重复级别r1,所述第二重复级别集合包括重复级别r2、重复级别r3和重复级别r4;或,
    所述第二信道的最大重复次数小于等于2时,所述第一重复级别集合包括重复级别r1和重复级别r2,所述第二重复级别集合包括重复级别r3和重复级别r4;或,
    当所述第二信道的最大重复次数小于等于4时,所述第一重复级别集合包括重复级别r1、重复级别r2和重复级别r3,所述第二重复级别集合包括重复级别r4。
  6. 根据权利要求2或3所述的方法,其特征在于:
    所述第二信道的重复级别和所述第一字段的比特状态的组合属于第一集合时,所述网络设备指示的HARQ进程号属于0至2M-1,所述第二信道的重复级别和所述第一字段的比特状态的组合属于第二集合时,所述网络设备指示的HARQ进程号属于2M至(N-1);或者,
    所述第二信道的重复级别和所述第一字段的比特状态的组合属于第一集合时,所述网络设备指示的HARQ进程号属于1至2M,所述第二信道的重复级别和所述第一字段的比特状态的组合属于第二集合时,所述网络设备指示的HARQ进程号属于2M+1至N;
    其中,第一集合包括一个或多个组合,第二集合包括一个或多个组合,第一集合和第二集合的交集为空,N>2M,M和N为正整数。
  7. 根据权利要求4或6所述的方法,其特征在于,M=3,N=10。
  8. 根据权利要求2至7中的任一项权利要求所述的方法,其特征在于,第二信道是物理下行控制信道,或物理下行共享信道,或物理上行共享信道。
  9. 根据权利要求1至8中的任一项权利要求所述的方法,其特征在于,所述DCI的格式是DCI格式6-1A、DCI格式6-0A、DCI格式6-1B、或DCI格式6-0B;
    所述第一字段是所述DCI中的3比特HARQ进程编号字段。
  10. 一种指示混合自动重发请求HARQ进程号的方法,其特征在于, 包括:
    用户设备接收网络设备发送的下行控制信息DCI,其中所述DCI包括第一字段和指示信息,所述第一字段是HARQ进程编号字段,所述HARQ进程编号字段和所述指示信息联合指示了所述HARQ进程号,所述HARQ进程号是DCI所调度的数据信道对应的HARQ进程的编号;
    所述用户设备根据所述第一字段和所述指示信息确定HARQ进程号。
  11. 根据权利要求10所述的方法,其特征在于,
    所述指示信息为节余比特,其中所述节余比特是通过降低所述DCI中指示第二信道的重复级别的字段的比特数所节省的比特;或者,
    所述指示信息是所述DCI中所指示的第二信道的重复级别;或者,
    所述指示信息是所述DCI中指示第二信道的重复级别的字段的比特状态。
  12. 根据权利要求11所述的方法,其特征在于,
    所述指示信息的重复级别是所述第二信道的第4个重复级别;或者,
    所述指示信息的重复级别是所述第二信道的最大重复级别;或者,
    所述指示信息的比特状态是11;或者,
    所述第二信道的最大重复次数小于等于2时,所述节余比特为1个比特,其中所述重复次数用于指示重复级别对应的重复次数。
  13. 根据权利要求11或12所述的方法,其特征在于:
    所述第二信道的重复级别属于第一重复级别集合时,所述第一字段指示的HARQ进程号属于0至2M-1,所述第二信道的重复级别属于第二重复级别集合时,所述第一字段指示的HARQ进程号属于2M至(N-1);或者,
    所述第二信道的重复级别属于第一重复级别集合时,所述第一字段指示的HARQ进程号属于1至2M,所述第二信道的重复级别属于第二重复级别集合时,所述第一字段指示的HARQ进程号属于2M+1至N;
    其中,所述第一重复级别集合包括一个或多个重复级别,所述第二重复级别集合包括一个或多个重复级别,所述第一重复级别集合和所述第二重复级别集合的交集为空,N>2M,M和N为正整数。
  14. 根据权利要求13所述的方法,其特征在于,所述第二信道的重复级别包括重复级别r1、重复级别r2、重复级别r3和重复级别r4,分别对应于所述第二信道的重复次数
    其中,所述第二信道的最大重复次数小于等于1时,所述第一重复级别集合包括重复级别r1,所述第二重复级别集合包括重复级别r2、重复级别r3和重复级别r4;或,
    所述第二信道的最大重复次数小于等于2时,所述第一重复级别集合包括重复级别r1和重复级别r2,所述第二重复级别集合包括重复级别r3和重复级别r4;或,
    当所述第二信道的最大重复次数小于等于4时,所述第一重复级别集合包括重复级别r1、重复级别r2和重复级别r3,所述第二重复级别集合包括重复级别r4。
  15. 根据权利要求11或12所述的方法,其特征在于,
    所述第二信道的重复级别和所述第一字段的比特状态的组合属于第一集合时,所述用户设备指示的HARQ进程号属于0至2M-1,所述第二信道的重复级别和所述第一字段的比特状态的组合属于第二集合时,所述用户设备指示的HARQ进程号属于2M至(N-1);或者,
    所述第二信道的重复级别和所述第一字段的比特状态的组合属于第一集合时,所述用户设备指示的HARQ进程号属于1至2M,所述第二信道的重复级别和所述第一字段的比特状态的组合属于第二集合时,所述用户设备指示的HARQ进程号属于2M+1至N;
    其中,第一集合包括一个或多个组合,第二集合包括一个或多个组合,第一集合和第二集合的交集为空,N>2M,M和N为正整数。
  16. 根据权利要求13或15所述的方法,其特征在于,M=3,N=10。
  17. 根据权利要求10至16任一项权利要求所述的方法,其特征在于,第二信道是物理下行控制信道,或物理下行共享信道,或物理上行共享信道。
  18. 根据权利要求10至17中的任一项权利要求所述的方法,其特征在于,所述DCI的格式是DCI格式6-1A、DCI格式6-0A、DCI格式6-1B、或DCI格式6-0B;
    所述第一字段是所述DCI中的3比特HARQ进程编号字段。
  19. 一种网络设备,其特征在于,包括:
    确定模块,用于确定所述HARQ进程号,所述HARQ进程号是下行控制信息DCI所调度的数据信道对应的HARQ进程的编号;
    发送模块,用于向用户设备发送所述DCI,其中所述DCI包括第一字段 和指示信息,所述第一字段是HARQ进程编号字段,所述第一字段和所述指示信息联合指示了所确定的所述HARQ进程号。
  20. 根据权利要求19所述的网络设备,其特征在于,
    所述指示信息为节余比特,其中所述节余比特是通过降低所述DCI中指示第二信道的重复级别的字段的比特数所节省的比特;或者,
    所述指示信息是所述DCI中所指示的第二信道的重复级别;或者,
    所述指示信息是所述DCI中指示第二信道的重复级别的字段的比特状态。
  21. 根据权利要求20所述的网络设备,其特征在于,
    所述指示信息的重复级别是所述第二信道的第4个重复级别;或者,
    所述指示信息的重复级别是所述第二信道的最大重复级别;或者,
    所述指示信息的比特状态是11;或者,
    所述第二信道的最大重复次数小于等于2时,所述节余比特为1个比特,所述重复次数用于指示重复级别对应的重复次数。
  22. 根据权利要求20或21所述的网络设备,其特征在于,
    所述第二信道的重复级别属于第一重复级别集合时,所述第一字段指示的HARQ进程号属于0至2M-1,所述第二信道的重复级别属于第二重复级别集合时,所述第一字段指示的HARQ进程号属于2M至(N-1);或者,
    所述第二信道的重复级别属于第一重复级别集合时,所述第一字段指示的HARQ进程号属于1至2M,所述第二信道的重复级别属于第二重复级别集合时,所述第一字段指示的HARQ进程号属于2M+1至N;
    其中,所述第一重复级别集合包括一个或多个重复级别,所述第二重复级别集合包括一个或多个重复级别,所述第一重复级别集合和所述第二重复级别集合的交集为空,N>2M,M和N为正整数。
  23. 根据权利要求22所述的网络设备,其特征在于,所述第二信道的重复级别包括重复级别r1、重复级别r2、重复级别r3和重复级别r4,分别对应于所述第二信道的重复次数,
    其中所述第二信道的最大重复次数小于等于1时,所述第一重复级别集合包括重复级别r1,所述第二重复级别集合包括重复级别r2、重复级别r3和重复级别r4;或,
    所述第二信道的最大重复次数小于等于2时,所述第一重复级别集合包 括重复级别r1和重复级别r2,所述第二重复级别集合包括重复级别r3和重复级别r4;或,
    当所述第二信道的最大重复次数小于等于4时,所述第一重复级别集合包括重复级别r1、重复级别r2和重复级别r3,所述第二重复级别集合包括重复级别r4。
  24. 根据权利要求20或21所述的网络设备,其特征在于:
    所述第二信道的重复级别和所述第一字段的比特状态的组合属于第一集合时,所述网络设备指示的HARQ进程号属于0至2M-1,所述第二信道的重复级别和所述第一字段的比特状态的组合属于第二集合时,所述网络设备指示的HARQ进程号属于2M至(N-1);或者,
    所述第二信道的重复级别和所述第一字段的比特状态的组合属于第一集合时,所述网络设备指示的HARQ进程号属于1至2M,所述第二信道的重复级别和所述第一字段的比特状态的组合属于第二集合时,所述网络设备指示的HARQ进程号属于2M+1至N;
    其中,第一集合包括一个或多个组合,第二集合包括一个或多个组合,第一集合和第二集合的交集为空,N>2M,M和N为正整数。
  25. 根据权利要求22或24所述的网络设备,其特征在于,M=3,N=10。
  26. 根据权利要求20至25中的任一项所述的网络设备,其特征在于,第二信道是物理下行控制信道,或物理下行共享信道,或物理上行共享信道。
  27. 根据权利要求19至26中的任一项所述的网络设备,其特征在于,所述DCI的格式是DCI格式6-1A、DCI格式6-0A、DCI格式6-1B、或DCI格式6-0B;
    所述第一字段是所述DCI中的3比特HARQ进程编号字段。
  28. 一种用户设备,其特征在于,包括:
    接收模块,用于接收网络设备发送的下行控制信息DCI,其中所述DCI包括第一字段和指示信息,所述第一字段是HARQ进程编号字段,所述HARQ进程编号字段和所述指示信息联合指示了所述HARQ进程号,所述HARQ进程号是DCI所调度的数据信道对应的HARQ进程的编号;
    确定模块,用于根据所述第一字段和所述指示信息确定HARQ进程号。
  29. 根据权利要求28所述的用户设备,其特征在于,
    所述指示信息为节余比特,其中所述节余比特是通过降低所述DCI中指 示第二信道的重复级别的字段的比特数所节省的比特;或者,
    所述指示信息是所述DCI中所指示的第二信道的重复级别;或者,
    所述指示信息是所述DCI中指示第二信道的重复级别的字段的比特状态。
  30. 根据权利要求29所述的用户设备,其特征在于,
    所述指示信息的重复级别是所述第二信道的第4个重复级别;或者,
    所述指示信息的重复级别是所述第二信道的最大重复级别;或者,
    所述指示信息的比特状态是11;或者,
    所述第二信道的最大重复次数小于等于2时,所述节余比特为1个比特,其中所述重复次数用于指示重复级别对应的重复次数。
  31. 根据权利要求29或30所述的用户设备,其特征在于:
    所述第二信道的重复级别属于第一重复级别集合时,所述第一字段指示的HARQ进程号属于0至2M-1,所述第二信道的重复级别属于第二重复级别集合时,所述第一字段指示的HARQ进程号属于2M至(N-1);或者,
    所述第二信道的重复级别属于第一重复级别集合时,所述第一字段指示的HARQ进程号属于1至2M,所述第二信道的重复级别属于第二重复级别集合时,所述第一字段指示的HARQ进程号属于2M+1至N;
    其中,所述第一重复级别集合包括一个或多个重复级别,所述第二重复级别集合包括一个或多个重复级别,所述第一重复级别集合和所述第二重复级别集合的交集为空,N>2M,M和N为正整数。
  32. 根据权利要求31所述的用户设备,其特征在于,所述第二信道的重复级别包括重复级别r1、重复级别r2、重复级别r3和重复级别r4,分别对应于所述第二信道的重复次数
    其中,所述第二信道的最大重复次数小于等于1时,所述第一重复级别集合包括重复级别r1,所述第二重复级别集合包括重复级别r2、重复级别r3和重复级别r4;或,
    所述第二信道的最大重复次数小于等于2时,所述第一重复级别集合包括重复级别r1和重复级别r2,所述第二重复级别集合包括重复级别r3和重复级别r4;或,
    当所述第二信道的最大重复次数小于等于4时,所述第一重复级别集合包括重复级别r1、重复级别r2和重复级别r3,所述第二重复级别集合包括重 复级别r4。
  33. 根据权利要求29或30所述的用户设备,其特征在于,
    所述第二信道的重复级别和所述第一字段的比特状态的组合属于第一集合时,所述用户设备指示的HARQ进程号属于0至2M-1,所述第二信道的重复级别和所述第一字段的比特状态的组合属于第二集合时,所述用户设备指示的HARQ进程号属于2M至(N-1);或者,
    所述第二信道的重复级别和所述第一字段的比特状态的组合属于第一集合时,所述用户设备指示的HARQ进程号属于1至2M,所述第二信道的重复级别和所述第一字段的比特状态的组合属于第二集合时,所述用户设备指示的HARQ进程号属于2M+1至N;
    其中,第一集合包括一个或多个组合,第二集合包括一个或多个组合,第一集合和第二集合的交集为空,N>2M,M和N为正整数。
  34. 根据权利要求31或33所述的用户设备,其特征在于,M=3,N=10。
  35. 根据权利要求28至34中的任一项所述的用户设备,其特征在于,第二信道是物理下行控制信道,或物理下行共享信道,或物理上行共享信道。
  36. 根据权利要求28至35中的任一项所述的用户设备,其特征在于,所述DCI的格式是DCI格式6-1A、DCI格式6-0A、DCI格式6-1B、或DCI格式6-0B;
    所述第一字段是所述DCI中的3比特HARQ进程编号字段。
  37. 一种网络设备,其特征在于,包括:包括
    处理器,用于确定所述HARQ进程号,所述HARQ进程号是下行控制信息DCI所调度的数据信道对应的HARQ进程的编号;
    收发器,用于向用户设备发送所述DCI,其中所述DCI包括第一字段和指示信息,所述第一字段是HARQ进程编号字段,所述第一字段和所述指示信息联合指示了所确定的所述HARQ进程号。
  38. 一种用户设备,其特征在于,包括:
    收发器,用于接收网络设备发送的下行控制信息DCI,其中所述DCI包括第一字段和指示信息,所述第一字段是HARQ进程编号字段,所述HARQ进程编号字段和所述指示信息联合指示了所述HARQ进程号,所述HARQ进程号是DCI所调度的数据信道对应的HARQ进程的编号;
    处理器,用于根据所述第一字段和所述指示信息确定HARQ进程号。
PCT/CN2016/101169 2016-09-30 2016-09-30 指示harq进程号的方法、网络设备和用户设备 WO2018058561A1 (zh)

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CN113518350A (zh) * 2020-04-09 2021-10-19 维沃移动通信有限公司 调度方法和设备
WO2022027624A1 (zh) * 2020-08-07 2022-02-10 北京小米移动软件有限公司 一种能力确定方法、能力确定装置及存储介质
CN115189807A (zh) * 2021-04-02 2022-10-14 维沃移动通信有限公司 Harq进程号的确定、指示方法、装置、终端及网络侧设备

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CN112769530A (zh) * 2019-11-05 2021-05-07 普天信息技术有限公司 Lte230系统中单子带场景下配置授权方法
CN113518350A (zh) * 2020-04-09 2021-10-19 维沃移动通信有限公司 调度方法和设备
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