• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    one embodiment of this request provides a method of transmitting downlink control information and an apparatus. the method includes: receiving first dci downlink control information in search space of a first part of carrier bandwidth bwp, where if a type of resource allocation in the frequency domain of the first bwp is a type 0, a resource allocation indication in the frequency domain of lf bits in the first dci is a bitmap of lf bits, and bits in the bitmap of lf bits in descending order are corresponding respectively to the resource block groups rbg 0 to rbg ( lf-1) in a second bwp; and for a bit in the bitmap of lf bits, when a bit value is t1, an allocated resource includes an rbg corresponding to the bit. according to this method, bwp switching or cross bwp scaling can be performed when using a truncated information field.
    公开号:BR112020016565A2
    申请号:R112020016565-4
    申请日:2019-02-02
    公开日:2020-12-22
    发明作者:Junchao Li；Hao Tang；Zhenfei Tang
    申请人:Huawei Technologies Co., Ltd.；
    IPC主号:
    专利说明:

    [001] [001] This request concerns the field of communications technologies, and in particular a method of transmitting downlink control information, an apparatus and a system. BACKGROUND
    [002] [002] In a wireless communications system, a network device can send downlink control information, DCI, to a terminal device, to indicate data transmission between the network device and the terminal device. For example, the network device sends the DCI to the terminal device via a downlink control channel (physical downlink control channel, PDCCH). DCI includes scheduling information for a data channel, and scheduling information can include a data channel transmission parameter. The network device and the terminal device perform data transmission through the data channel based on the transmission parameter. DCI plays an important role in data transmission. Therefore, in the wireless communications system, DCI's design is a key research subject. SUMMARY
    [003] [003] According to a first aspect, a modality of this request provides a method of transmitting downlink control information, including: receiving the first DCI in the research space of a first BWP,
    [004] [004] In a possible implementation, the first DCI includes first information and the first information is used to determine scheduling information for a second BWP includes: if a resource allocation type in the frequency domain of the first BWP is a type 0 , an indication of resource allocation in the frequency domain of Lf bits in the first DCI is a bitmap of Lf bits, where bits in the bitmap of Lf bits in descending order are corresponding respectively to an RBG 0 to an RBG (Lf -1) in the second BWP; and for a bit in the bitmap of Lf bits, when a bit value is t1, an allocated resource includes an RBG corresponding to the bit; or when a bit value is t2 or is not t1, an allocated resource does not include an RBG corresponding to the bit; t1 and t2 can be whole numbers. For example, t1 is 1.
    [005] [005] In a possible implementation, the first DCI includes first information and the first information is used to determine scheduling information for a second BWP includes: if a type of resource allocation in the frequency domain of the first BWP is a type 1 , a resource allocation indication in the frequency domain of Lf bits in the first DCI is used to indicate an index of a starting RB allocated in the second BWP and a number of RBs allocated consecutively in the second BWP. Optionally, for the first DCI, mapping from VRB to direct PRB is pre-configured, and that frequency hopping in the frequency domain is not enabled is pre-configured.
    [006] [006] In a possible implementation, the first DCI includes first information and the first information is used to determine scheduling information for a second BWP includes: the first DCI includes an indication of resource allocation in the LT bit time domain, ⌈
    权利要求:
    Claims (29)
    [1]
    1. Downlink control (DCI) information transmission method, characterized by the fact that it comprises: receiving the first DCI when using a first part of bandwidth (BWP), in which the first DCI comprises an indication of BWP and a first indication of resource allocation in the frequency domain, and a BWP indicated by the indication of BWP is a second BWP; and if resource types of the second BWP comprise a first type and a second type, and the size of an information field of the first indication of resource allocation in the frequency domain is less than that of an information field of a second resource allocation indication in the frequency domain, the first resource allocation indication in the frequency domain indicates a resource in the frequency domain in the second BWP when using the first type, and the second resource allocation indication in the frequency domain is usable when received in the second BWP to indicate the resource in the frequency domain in the second BWP.
    [2]
    2. Method, according to claim 1, characterized by the fact that it comprises: determining the resource in the frequency domain in the second BWP based on the first indication of resource allocation in the frequency domain when using the first type.
    [3]
    3. Method according to claim 1 or 2, characterized by the fact that the first type is a type 0 and the second type is a type 1.
    [4]
    4. Method according to any one of claims 1 to 3, characterized by the fact that the first indication of resource allocation in the frequency domain indicates a resource in the frequency domain in the second BWP when using the first type comprises: the first resource allocation indication in the frequency domain comprises N bits, and the N bits are corresponding to the resource block groups (RBG) 0 to RBG (N – 1) in the second BWP, respectively, where N is an integer greater than or equal to 1; and for one of the N bits, when a value of the bit is 1, the resource in the frequency domain in the second BWP comprises an RBG corresponding to the bit; or when a bit value is not 1, the resource in the frequency domain in the second BWP does not comprise an RBG corresponding to the bit.
    [5]
    5. Method according to claim 4, characterized by the fact that N is equal to an amount of RBGs comprised in the second BWP.
    [6]
    6. Method according to any one of claims 1 to 5, characterized in that the second DCI comprises the second indication of resource allocation in the frequency domain, and the second DCI is received in the second BWP.
    [7]
    7. Downlink control (DCI) information transmission method, characterized by the fact that it comprises: sending the first DCI when using a first part of BWP bandwidth, where the first DCI comprises a BWP indication and a first resource allocation indication in the frequency domain, and a BWP indicated by the BWP indication is a second BWP; and if resource types of the second BWP comprise a first type and a second type, and the size of an information field of the first indication of resource allocation in the frequency domain is less than that of an information field of a second resource allocation indication in the frequency domain, the first resource allocation indication in the frequency domain indicates a resource in the frequency domain in the second BWP when using the first type, and the second resource allocation indication in the frequency domain is usable when being transmitted in the second BWP to indicate the resource in the frequency domain in the second BWP.
    [8]
    8. Method according to claim 7, characterized by the fact that the first type is a type 0 and the second type is a type 1.
    [9]
    9. Method according to claim 7 or 8, characterized by the fact that the first indication of resource allocation in the frequency domain indicates a resource in the frequency domain in the second BWP when using the first type comprises: the first indication of resource allocation in the frequency domain comprises N bits, and the N bits are corresponding to the resource block groups (RBG) 0 to RBG (N – 1) in the second BWP respectively, where N is an integer greater than or equal to 1; and for one of the N bits, when a value of the bit is 1, the resource in the frequency domain in the second BWP comprises an RBG corresponding to the bit; or when a bit value is not 1, the resource in the frequency domain in the second BWP does not comprise an RBG corresponding to the bit.
    [10]
    10. Method according to claim 9, characterized by the fact that N is equal to an amount of RBGs comprised in the second BWP.
    [11]
    11. Method according to any one of claims 7 to 10, characterized in that the second DCI comprises the second indication of resource allocation in the frequency domain, and the second DCI is transmitted in the second BWP.
    [12]
    12. Communications apparatus, characterized by the fact that it is configured to implement the method as defined in any of claims 1 to 6.
    [13]
    13. Communications device, characterized by the fact that it comprises a processor and a memory, in which the processor is coupled to the memory, and the processor is configured to: receive first downlink control (DCI) information when using a first part bandwidth (BWP), where the first DCI comprises a BWP indication and a first resource allocation indication in the frequency domain, and a BWP indicated by the BWP indication is a second BWP; and if resource types of the second BWP comprise a first type and a second type, and the size of an information field of the first indication of resource allocation in the frequency domain is less than that of an information field of a second resource allocation indication in the frequency domain, the first resource allocation indication in the frequency domain indicates a resource in the frequency domain in the second BWP when using the first type, and the second resource allocation indication in the frequency domain is usable when received in the second BWP to indicate the resource in the frequency domain in the second BWP.
    [14]
    14. Communications apparatus, characterized by the fact that it is configured to implement the method as defined in any of claims 7 to 11.
    [15]
    15. Communications device, characterized by the fact that it comprises a processor and a memory, in which the processor is coupled to the memory, and the processor is configured to: send first downlink control information (DCI) when using a first part bandwidth (BWP), where the first DCI comprises a BWP indication and a first resource allocation indication in the frequency domain, and a BWP indicated by the BWP indication is a second BWP; and if resource types of the second BWP comprise a first type and a second type, and the size of an information field of the first indication of resource allocation in the frequency domain is less than that of an information field of a second resource allocation indication in the frequency domain, the first resource allocation indication in the frequency domain indicates a resource in the frequency domain in the second BWP when using the first type, and the second resource allocation indication in the frequency domain is usable when being transmitted in the second BWP to indicate the resource in the frequency domain in the second BWP.
    [16]
    16. Downlink control (DCI) information transmission method, characterized by the fact that it comprises: receiving the first DCI when using a first part of bandwidth (BWP), in which the first DCI comprises a BWP indication, a BWP indicated by the BWP indication is a second BWP, the first DCI comprises an information field of a first transport block (TB) in the second BWP, and the first DCI does not comprise an information field of a second TB in the second BWP .
    [17]
    17. Downlink control (DCI) information transmission method, characterized by the fact that it comprises: receiving the first DCI when using a first part of bandwidth (BWP), in which the first DCI comprises a BWP indication, a BWP indicated by the BWP indication is a second BWP, and the first DCI comprises an information field of a first transport block TB in the second BWP; and ignore an information field, in the first DCI, of a second TB in the second BWP.
    [18]
    18. Method according to claim 16 or 17, characterized by the fact that the information field of the first TB comprises at least one of the following information fields: a modulation and coding scheme (MCS) information field, a new data indicator (NDI) information field and a redundancy version (RV) information field.
    [19]
    19. Method according to any one of claims 16 to 18, characterized in that the maximum amount of TBs in the second BWP is 2.
    [20]
    20. Downlink control (DCI) information transmission method, characterized by the fact that it comprises: sending the first DCI when using a first part of bandwidth (BWP), where the first DCI comprises a BWP indication, a BWP indicated by the BWP indication is a second BWP, the first DCI comprises an information field of a first transport block (TB) in the second BWP, and the first DCI does not comprise an information field of a second TB in the second BWP .
    [21]
    21. Method, according to claim 20, characterized by the fact that the information field of the first TB comprises at least one of the following information fields: a field of modulation and coding scheme (MCS), a field of new data indicator information (NDI) and a redundancy version information (RV) field.
    [22]
    22. Method according to claim 20 or 21, characterized in that the maximum amount of TBs in the second BWP is 2.
    [23]
    23. Communications apparatus, characterized by the fact that it is configured to implement the method as defined in any of claims 16 to 19.
    [24]
    24. Communications device, characterized by the fact that it comprises a processor and a memory, in which the processor is coupled to the memory; and the processor is configured to receive first downlink control (DCI) information when using a first bandwidth portion (BWP), where the first DCI comprises a BWP indication, a BWP indicated by the BWP indication is a second BWP, the first DCI comprises an information field of a first transport block (TB) in the second BWP, and the first DCI does not comprise an information field of a second TB in the second BWP.
    [25]
    25. Communications device, characterized by the fact that it comprises a processor and a memory, in which the processor is coupled to the memory, and the processor is configured to: receive first downlink control (DCI) information when using a first part bandwidth (BWP), where the first DCI comprises a BWP indication, a BWP indicated by the BWP indication is a second BWP, and the first DCI comprises a first transport block (TB) information field in the second BWP; and ignore an information field, in the first DCI, of a second TB in the second BWP.
    [26]
    26. Communications apparatus, characterized by the fact that it is configured to implement the method as defined in any of claims 20 to 22.
    [27]
    27. Communications device, characterized by the fact that it comprises a processor and a memory, in which the processor is coupled to the memory; and the processor is configured to send first downlink control (DCI) information when using a first bandwidth portion (BWP), where the first DCI comprises a BWP indication, a BWP indicated by the BWP indication is a second BWP, the first DCI comprises an information field of a first transport block (TB) in the second BWP, and the first DCI does not comprise an information field of a second TB in the second BWP.
    [28]
    28. Communications system, characterized by the fact that it comprises the communications apparatus as defined in any of claims 12 to 13 and the communications apparatus as defined in any of claims 14 to 15, or comprises the communications apparatus as defined in any of claims 23 to 25 and the communications apparatus as defined in any of claims 26 to
    27.
    [29]
    29. Computer-readable storage medium, characterized by the fact that it comprises an instruction, in which when the instruction is executed on a computer the computer is able to perform the method as defined in any of claims 1 to 11, or the computer is able to perform the method as defined in any of claims 16 to 22.
    类似技术:
    公开号 | 公开日 | 专利标题
    BR112020016565A2|2020-12-22|METHOD OF TRANSMISSING DOWNLIGHT CONTROL INFORMATION
    JP6377763B2|2018-08-22|Data transmission method and apparatus
    WO2019029727A1|2019-02-14|Method, terminal apparatus, and network apparatus for determining feedback information
    KR20190029648A|2019-03-20|Method and apparatus for transmitting data in next generation cellular
    ES2864022T3|2021-10-13|User terminal and radio communication method
    US9131502B2|2015-09-08|Method and apparatus for contention based uplink transmission
    JP5991918B2|2016-09-14|Method and apparatus for determining search space and candidate control channel resources
    EP2836043B1|2020-08-26|Method and device for allocating channel resources of wlan and wireless local area network communication system
    BR112020002686A2|2020-07-28|system and method to enable low latency and reliable communication
    JP2012507241A|2012-03-22|Method for transmitting control information in a wireless mobile communication system
    US10420092B2|2019-09-17|Resource allocation information indication method, base station, and user equipment
    CN103609084A|2014-02-26|Extension of physical downlink control signaling in a communication system
    JP2019208242A|2019-12-05|System and method for self-completion air interface partition
    WO2018202167A1|2018-11-08|Communication method and communication apparatus
    US20200120545A1|2020-04-16|Resource configuration method, apparatus, and system
    CA2790057A1|2011-09-01|Group resource allocation method and device in wireless access system
    WO2018028467A1|2018-02-15|Transmitting method and device and receiving method and device for transport block
    KR20170108007A|2017-09-26|Method and apparatus for transmitting instruction information
    US11258571B2|2022-02-22|Downlink control information transmission method, apparatus, and system
    US20210185672A1|2021-06-17|Time Domain Resource Configuration Method
    WO2020164014A1|2020-08-20|Multiple transmission schemes in wireless communication
    WO2020048481A1|2020-03-12|Communication method and apparatus
    WO2020169063A1|2020-08-27|Data transmission method, and communication apparatus
    KR20200114988A|2020-10-07|Method and apparatus for repetition based data transmission for network cooperative communication
    TWI746708B|2021-11-21|Method for transmitting information, network equipment, and terminal equipment
    同族专利:
    公开号 | 公开日
    EP3709740A4|2020-12-09|
    WO2019158005A1|2019-08-22|
    CN109995497A|2019-07-09|
    CN109995497B|2020-08-07|
    US20200296758A1|2020-09-17|
    JP2021507650A|2021-02-22|
    EP3709740A1|2020-09-16|
    CN110166209A|2019-08-23|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US9642126B2|2012-02-11|2017-05-02|Lg Electronics Inc.|Method for receiving downlink data channels in multicell-based wireless communication systems and apparatus for same|
    CN102595385B|2012-03-02|2014-06-18|电信科学技术研究院|Downlink transmission method and device|
    CN105099634B|2014-05-09|2019-05-07|中兴通讯股份有限公司|Distribution method and device, base station, the terminal of dynamic resource|
    US10512046B2|2016-06-09|2019-12-17|Samsung Electronics Co., Ltd.|Method and apparatus for measurement reference signal and synchronization|CA3070553A1|2018-04-05|2019-10-10|Lg Electronics Inc.|Method for transmitting and receiving downlink data channel and apparatus therefor|
    JP2021534687A|2018-09-18|2021-12-09|オッポ広東移動通信有限公司Guangdong Oppo Mobile Telecommunications Corp., Ltd.|Resource allocation method, terminal equipment and network equipment|
    US11166269B2|2019-03-28|2021-11-02|Ofinno, Llc|Interaction between power saving adaptation and bandwidth part adaptation|
    CN110546996A|2019-07-23|2019-12-06|北京小米移动软件有限公司|Direct connection communication method and device|
    CN112399627A|2019-08-14|2021-02-23|华为技术有限公司|DMRS port determination method and communication device|
    WO2021031033A1|2019-08-16|2021-02-25|华为技术有限公司|Method and device for determining offset value of minimum available time unit|
    WO2021031041A1|2019-08-16|2021-02-25|华为技术有限公司|Communication method and apparatus|
    CN112583546A|2019-09-27|2021-03-30|维沃移动通信有限公司|Resource allocation method, device, equipment and storage medium|
    CN112584470A|2019-09-30|2021-03-30|大唐移动通信设备有限公司|Energy-saving information transmission method, terminal and network side equipment|
    WO2021114060A1|2019-12-09|2021-06-17|华为技术有限公司|Communication method and related apparatus, and devices|
    CN111245586A|2020-01-10|2020-06-05|北京紫光展锐通信技术有限公司|DCI generation method, cell scheduling method, system, device and medium|
    CN113543037A|2020-04-14|2021-10-22|华为技术有限公司|Communication method and device|
    CN113677024A|2020-05-15|2021-11-19|华为技术有限公司|Resource determination method and device|
    CN113556821A|2020-08-17|2021-10-26|中兴通讯股份有限公司|Scheduling method, base station, and storage medium|
    法律状态:
    2021-12-14| B350| Update of information on the portal [chapter 15.35 patent gazette]|
    优先权:
    申请号 | 申请日 | 专利标题
    CN201810152331.5A|CN110166209A|2018-02-14|2018-02-14|Downlink control information transmission method|
    CN201810152331.5|2018-02-14|
    PCT/CN2019/074555|WO2019158005A1|2018-02-14|2019-02-02|Method for transmitting downlink control information|
    [返回顶部]