WO2020186531A1 - 一种信息确定方法、装置、系统、设备及存储介质 - Google Patents

一种信息确定方法、装置、系统、设备及存储介质 Download PDF

Info

Publication number
WO2020186531A1
WO2020186531A1 PCT/CN2019/079143 CN2019079143W WO2020186531A1 WO 2020186531 A1 WO2020186531 A1 WO 2020186531A1 CN 2019079143 W CN2019079143 W CN 2019079143W WO 2020186531 A1 WO2020186531 A1 WO 2020186531A1
Authority
WO
WIPO (PCT)
Prior art keywords
configuration information
pdcch
base station
offset
time window
Prior art date
Application number
PCT/CN2019/079143
Other languages
English (en)
French (fr)
Inventor
贺传峰
Original Assignee
Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to PCT/CN2019/079143 priority Critical patent/WO2020186531A1/zh
Priority to CN201980066103.9A priority patent/CN112805937B/zh
Publication of WO2020186531A1 publication Critical patent/WO2020186531A1/zh

Links

Images

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/14Relay systems

Definitions

  • This application relates to the field of communications technology, and in particular to an information determination method, device, system, equipment and storage medium.
  • the IAB (Integrated Access and Backhaul) base station integrates the wireless access link and the wireless backhaul link.
  • the wireless access link is between the UE (User Equipment) and the IAB base station
  • the wireless backhaul link is the communication link between the IAB base station and other IAB base stations for data backhaul.
  • the UE can access the first IAB base station that provides services for the UE, and the first IAB base station can access other second IAB base stations.
  • Random access generally includes multiple processes. Take the UE accessing the first IAB base station as an example. For the downlink message sent by the first IAB base station to the UE, the UE will use the search space configuration information indicated in the system message and the time window parameters configured by the higher layer. In the time window corresponding to the time window parameter, monitor PDCCH (Physical Downlink Control Channel) in the search space indicated by the search space configuration information to receive the downlink message, thereby randomly accessing the first IAB Base station.
  • PDCCH Physical Downlink Control Channel
  • the first IAB base station not only to send downlink messages to the UE, but also to receive downlink messages sent by the second IAB base station, and in some embodiments, the first IAB base station and the second IAB base station may be equipped with the same search space At this time, due to the limitation of half-duplex, the first IAB base station cannot use the same search space to receive downlink messages sent by the second IAB base station and send downlink messages to the UE. Therefore, the first IAB base station and the second IAB base station The configured search space needs to be separated in the time domain.
  • the embodiments of the present application provide an information determination method, device, system, equipment, and storage medium, which can solve the problem that search spaces configured by the first IAB base station and the second IAB base station need to be separated in the time domain.
  • the specific technical solutions are as follows:
  • an information determination method is provided, which is applied to a first access backhaul integrated IAB base station, the method includes: determining first physical downlink control channel PDCCH configuration information, the first PDCCH configuration information is at least Used to indicate the search space of the PDCCH corresponding to the first downlink message sent during the random access process of the first IAB base station; determine the second PDCCH configuration information according to the first PDCCH configuration information, the second PDCCH configuration information At least it is used to indicate the search space of the PDCCH corresponding to the second downlink message received during the random access process of the first IAB base station.
  • the first PDCCH configuration information includes configuration information of a first time window corresponding to the first downlink message
  • the second PDCCH configuration information includes the second downlink message
  • the information includes configuration information of the first time window corresponding to the first downlink message and first search space configuration information
  • the second PDCCH configuration information includes configuration information of the second time window corresponding to the second downlink message and The second search space configuration information.
  • the determining the second PDCCH configuration information according to the first PDCCH configuration information includes: determining the second PDCCH configuration information according to the first search space configuration information and the first time domain offset The second search space configuration information; and/or, determine the configuration information of the second time window according to the configuration information of the first time window and the second time domain offset.
  • the first time domain offset includes a time slot offset and/or a symbol offset
  • the time slot offset is used to determine the number of time slots offset on the time slot.
  • the symbol offset is used to determine the number of symbols offset on the symbols in the time slot.
  • the time slot offset is a reference time slot offset
  • the reference time slot offset is greater than or equal to a parameter value of a first parameter
  • the first parameter is used to indicate a The number of consecutive time slots for monitoring the physical downlink control channel PDCCH in the period; or, the time slot offset is indicated by the second IAB base station.
  • the symbol offset is a reference symbol offset, and the reference symbol offset is greater than or equal to a parameter value of a second parameter, and the second parameter is used to indicate the monitoring of The consecutive symbol positions of the physical downlink control channel PDCCH; or, the symbol offset is indicated by the second IAB base station.
  • the determining the configuration information of the second time window according to the configuration information of the first time window and the second time domain offset includes: according to the first time window The start position and window length information of the window, and the second time domain offset, determine the start position and window length information of the second time window; or, according to the start position and window length information of the first time window The second time domain offset determines the starting position of the second time window.
  • an information determination method is provided, which is applied to a first access backhaul integrated IAB base station, the method includes: determining second search space configuration information, and/or determining configuration information of a second time window
  • the second search space configuration information is used to indicate the search space of the PDCCH corresponding to the second downlink message received during the random access process of the first IAB base station
  • the configuration information of the second time window is used to indicate all The first IAB base station receives the second downlink message in a corresponding second time window.
  • the determining the second search space configuration information includes: determining a third parameter and/or a fourth parameter in the second search space configuration information, and the third parameter is used Instructing the first IAB base station to receive the PDCCH monitoring timing corresponding to the second downlink message during the random access process, the fourth parameter is used to instruct the first IAB base station to receive the second downlink message in the same time slot Symbol position.
  • the determining the configuration information of the second time window includes: determining the start position of the second time window and/or window length information.
  • the start position of the second time window is located at least N symbols after the last symbol of the physical random access channel PRACH monitoring opportunity in the first of the nearest control resource set. Symbols, and the N is an integer greater than 1.
  • the start position of the second time window is located at the first symbol of the M-th control resource set after at least one symbol after the last symbol of the PRACH monitoring opportunity, so Said M is an integer greater than 1.
  • an information determination method is provided, which is applied to a second access backhaul integrated IAB base station.
  • the method includes: determining first physical downlink control channel PDCCH configuration information, where the first PDCCH configuration information is at least Used to indicate the search space of the PDCCH corresponding to the first downlink message sent during the random access process of the first IAB base station; determine the second PDCCH configuration information according to the first PDCCH configuration information, the second PDCCH configuration information At least it is used to indicate the search space of the PDCCH corresponding to the second downlink message received during the random access process of the first IAB base station.
  • the first PDCCH configuration information includes configuration information of a first time window corresponding to the first downlink message
  • the second PDCCH configuration information includes the second downlink message
  • the information includes configuration information of the first time window corresponding to the first downlink message and first search space configuration information
  • the second PDCCH configuration information includes configuration information of the second time window corresponding to the second downlink message and The second search space configuration information.
  • the determining the second PDCCH configuration information according to the first PDCCH configuration information includes: determining the second PDCCH configuration information according to the first search space configuration information and the first time domain offset The second search space configuration information; and/or, determine the configuration information of the second time window according to the configuration information of the first time window and the second time domain offset.
  • the first time domain offset includes a time slot offset and/or a symbol offset
  • the time slot offset is used to determine the number of time slots offset on the time slot.
  • the symbol offset is used to determine the number of symbols offset on the symbols in the time slot.
  • the time slot offset is a reference time slot offset
  • the reference time slot offset is greater than or equal to a parameter value of a first parameter
  • the first parameter is used to indicate a The number of consecutive time slots for monitoring the physical downlink control channel PDCCH in the period; or, the time slot offset is indicated by the second IAB base station.
  • the symbol offset is a reference symbol offset, and the reference symbol offset is greater than or equal to a parameter value of a second parameter, and the second parameter is used to indicate the monitoring of The consecutive symbol positions of the physical downlink control channel PDCCH; or, the symbol offset is indicated by the second IAB base station.
  • the determining the configuration information of the second time window according to the configuration information of the first time window and the second time domain offset includes: according to the first time window The start position and window length information of the window, and the second time domain offset, determine the start position and window length information of the second time window; or, according to the start position and window length information of the first time window The second time domain offset determines the starting position of the second time window.
  • an information determination method is provided, which is applied to a second access backhaul integrated IAB base station, the method includes: determining second search space configuration information, and/or determining the configuration of the second time window Information; wherein, the second search space configuration information is used to indicate the search space of the PDCCH corresponding to the second downlink message received during the random access process of the first IAB base station, and the configuration information of the second time window is used to indicate The first IAB base station receives the second downlink message in a corresponding second time window.
  • the determining the second search space configuration information includes: determining a third parameter and/or a fourth parameter in the second search space configuration information, and the third parameter is used Instructing the first IAB base station to receive the PDCCH monitoring timing corresponding to the second downlink message during the random access process, the fourth parameter is used to instruct the first IAB base station to receive the second downlink message in the same time slot Symbol position.
  • the determining the configuration information of the second time window includes: determining the start position of the second time window and/or window length information.
  • the start position of the second time window is located at least N symbols after the last symbol of the physical random access channel PRACH monitoring opportunity in the first of the nearest control resource set. Symbols, and the N is an integer greater than 1.
  • the start position of the second time window is located at the first symbol of the M-th control resource set after at least one symbol after the last symbol of the PRACH monitoring opportunity, so Said M is an integer greater than 1.
  • an information determining device is provided, the device is applied to a first IAB base station, and the device includes: a first determining module, configured to determine first physical downlink control channel PDCCH configuration information, and the first The PDCCH configuration information is used to at least indicate the search space of the PDCCH corresponding to the first downlink message sent during the random access process of the first IAB base station; the second determining module is used to determine the second PDCCH according to the first PDCCH configuration information PDCCH configuration information, where the second PDCCH configuration information is at least used to indicate the search space of the PDCCH corresponding to the second downlink message received during the random access process of the first IAB base station.
  • the first PDCCH configuration information includes configuration information of a first time window corresponding to the first downlink message
  • the second PDCCH configuration information includes the second downlink message
  • the information includes configuration information of the first time window corresponding to the first downlink message and first search space configuration information
  • the second PDCCH configuration information includes configuration information of the second time window corresponding to the second downlink message and The second search space configuration information.
  • the second determining module is configured to: determine the second search space configuration information according to the first search space configuration information and the first time domain offset; and/or , Determining the configuration information of the second time window according to the configuration information of the first time window and the second time domain offset.
  • the first time domain offset includes a time slot offset and/or a symbol offset
  • the time slot offset is used to determine the number of time slots offset on the time slot.
  • the symbol offset is used to determine the number of symbols offset on the symbols in the time slot.
  • the time slot offset is a reference time slot offset
  • the reference time slot offset is greater than or equal to a parameter value of a first parameter
  • the first parameter is used to indicate a The number of consecutive time slots for monitoring the physical downlink control channel PDCCH in the period; or, the time slot offset is indicated by the second IAB base station.
  • the symbol offset is a reference symbol offset, and the reference symbol offset is greater than or equal to a parameter value of a second parameter, and the second parameter is used to indicate the monitoring of The consecutive symbol positions of the physical downlink control channel PDCCH; or, the symbol offset is indicated by the second IAB base station.
  • the second determining module is configured to determine the first time window according to the start position and window length information of the first time window, and the second time domain offset. 2. Information on the start position and window length of the time window; or, determine the start position of the second time window according to the start position of the first time window and the second time domain offset.
  • an information determination device which is applied to a first access backhaul integrated IAB base station, the device includes: a third determination module for determining second search space configuration information, and/or, Determine the configuration information of the second time window; wherein, the second search space configuration information is used to indicate the search space of the PDCCH corresponding to the second downlink message received during the random access process of the first IAB base station, and the second time The configuration information of the window is used to instruct the first IAB base station to receive the second downlink message within the corresponding second time window.
  • the third determining module is used to determine the third parameter and/or the fourth parameter in the second search space configuration information, and the third parameter is used to indicate The PDCCH listening timing corresponding to the second downlink message received during the random access process of the first IAB base station, and the fourth parameter is used to indicate the symbol position at which the first IAB base station receives the second downlink message in the same time slot .
  • the third determining module is configured to determine the starting position of the second time window and/or window length information.
  • the start position of the second time window is located at least N symbols after the last symbol of the physical random access channel PRACH monitoring opportunity in the first of the nearest control resource set. Symbols, and the N is an integer greater than 1.
  • the start position of the second time window is located at the first symbol of the M-th control resource set after at least one symbol after the last symbol of the PRACH monitoring opportunity, so Said M is an integer greater than 1.
  • an information determining device which is applied to a second access backhaul integrated IAB base station, and the device includes: a fourth determining module configured to determine PDCCH configuration information of the first physical downlink control channel, and The first PDCCH configuration information is used to at least indicate the search space of the PDCCH corresponding to the first downlink message sent during the random access process of the first IAB base station; the fifth determining module is used to, according to the first PDCCH configuration information, Determine second PDCCH configuration information, where the second PDCCH configuration information is at least used to indicate the search space of the PDCCH corresponding to the second downlink message received during the random access process of the first IAB base station.
  • the first PDCCH configuration information includes configuration information of a first time window corresponding to the first downlink message
  • the second PDCCH configuration information includes the second downlink message
  • the information includes configuration information of the first time window corresponding to the first downlink message and first search space configuration information
  • the second PDCCH configuration information includes configuration information of the second time window corresponding to the second downlink message and The second search space configuration information.
  • the fifth determining module is configured to: determine the second search space configuration information according to the first search space configuration information and the first time domain offset; and/or , Determining the configuration information of the second time window according to the configuration information of the first time window and the second time domain offset.
  • the first time domain offset includes a time slot offset and/or a symbol offset
  • the time slot offset is used to determine the number of time slots offset on the time slot.
  • the symbol offset is used to determine the number of symbols offset on the symbols in the time slot.
  • the time slot offset is a reference time slot offset
  • the reference time slot offset is greater than or equal to a parameter value of a first parameter
  • the first parameter is used to indicate a The number of consecutive time slots for monitoring the physical downlink control channel PDCCH in the period; or, the time slot offset is indicated by the second IAB base station.
  • the symbol offset is a reference symbol offset, and the reference symbol offset is greater than or equal to a parameter value of a second parameter, and the second parameter is used to indicate the monitoring of The consecutive symbol positions of the physical downlink control channel PDCCH; or, the symbol offset is indicated by the second IAB base station.
  • the fifth determining module is configured to determine the first time window according to the start position and window length information of the first time window, and the second time domain offset. 2. Information on the start position and window length of the time window; or, determine the start position of the second time window according to the start position of the first time window and the second time domain offset.
  • an information determining device which is applied to a second access backhaul integrated IAB base station, and the device includes: a sixth determining module for determining second search space configuration information, and/or, Determine the configuration information of the second time window; wherein, the second search space configuration information is used to indicate the search space of the PDCCH corresponding to the second downlink message received during the random access process of the first IAB base station, and the second time The configuration information of the window is used to instruct the first IAB base station to receive the second downlink message within the corresponding second time window.
  • the sixth determining module is configured to determine a third parameter and/or a fourth parameter in the second search space configuration information, and the third parameter is used to indicate The PDCCH listening timing corresponding to the second downlink message received during the random access process of the first IAB base station, and the fourth parameter is used to indicate the symbol position at which the first IAB base station receives the second downlink message in the same time slot .
  • the sixth determining module is configured to determine the starting position of the second time window and/or window length information.
  • the start position of the second time window is located at least N symbols after the last symbol of the physical random access channel PRACH monitoring opportunity in the first of the nearest control resource set. Symbols, and the N is an integer greater than 1.
  • the start position of the second time window is located at the first symbol of the M-th control resource set after at least one symbol after the last symbol of the PRACH monitoring opportunity, so Said M is an integer greater than 1.
  • a communication system including a first access backhaul integrated IAB base station and a second IAB base station.
  • the first IAB base station includes the device described in any one of the fifth and sixth aspects above, and the second The IAB base station includes the device described in any one of the seventh aspect and the eighth aspect.
  • a first IAB base station in a tenth aspect, includes a processor and a memory, the memory stores at least one instruction, and the at least one instruction is used to be executed by the processor to implement the foregoing The method of any one of the first aspect and the second aspect.
  • a second IAB base station includes a processor and a memory, and the memory stores at least one instruction, and the at least one instruction is used for processing
  • the device executes to implement the method described in any one of the third aspect and the fourth aspect.
  • a computer-readable storage medium is provided, and instructions are stored on the computer-readable storage medium.
  • the instructions are characterized in that, when executed by a processor, any one of the first and second aspects is implemented. The method described.
  • a computer-readable storage medium is provided, and instructions are stored on the computer-readable storage medium.
  • the instructions are characterized in that, when the instructions are executed by a processor, any one of the foregoing third and fourth aspects is implemented. The method described.
  • a computer program product containing instructions which when run on a computer, causes the computer to execute the method described in any one of the first and second aspects.
  • a computer program product containing instructions which when run on a computer, causes the computer to execute the method described in any one of the third and fourth aspects.
  • the beneficial effects of the technical solutions provided by the embodiments of the present application include at least determining the first PDCCH configuration information, where the first PDCCH configuration is at least used to instruct the first IAB base station to search for the PDCCH corresponding to the first downlink message sent during the random access process Space, determining second PDCCH configuration information according to the first PDCCH configuration information, and the second PDCCH configuration information is at least used to indicate the search space of the PDCCH corresponding to the second downlink message received during the random access process of the first IAB base station.
  • the PDCCH configuration information used by the UE to receive the first downlink message is distinguished from the PDCCH configuration information used by the first IAB base station in the backhaul link to receive the second downlink message, so that the first IAB base station receives the second downlink message.
  • the search space of the PDCCH of the downlink message and the search space of the PDCCH of the first downlink message do not overlap in time domain, which solves the half-duplex restriction problem of the first IAB base station receiving the second downlink message and sending the first downlink message.
  • Fig. 1 is a schematic flowchart of a random access process provided by an exemplary embodiment of the present application
  • Fig. 2 is a schematic diagram of an application scenario provided by an exemplary embodiment of the present application.
  • Fig. 3 is a schematic diagram of an application scenario provided by another exemplary embodiment of the present application.
  • Fig. 4 is a flowchart of an information determination method provided by another exemplary embodiment of the present application.
  • Fig. 5 is a flowchart of an information determination method provided by another exemplary embodiment of the present application.
  • FIG. 6 is a schematic diagram of PDCCH monitoring timing provided by an exemplary embodiment of the present application.
  • FIG. 7 is a schematic diagram of PDCCH monitoring timing provided by another exemplary embodiment of the present application.
  • FIG. 8 is a flowchart of an information determination method provided by another exemplary embodiment of the present application.
  • FIG. 9 is a schematic diagram of PDCCH monitoring timing provided by an exemplary embodiment of the present application.
  • FIG. 10 is a schematic diagram of PDCCH monitoring timing provided by another exemplary embodiment of the present application.
  • FIG. 11 is a flowchart of an information determination method provided by another exemplary embodiment of the present application.
  • FIG. 12 is a flowchart of an information determination method provided by another exemplary embodiment of the present application.
  • FIG. 13 is a flowchart of an information determination method provided by another exemplary embodiment of the present application.
  • Fig. 14 is a block diagram of an information determining device provided by an exemplary embodiment of the present application.
  • FIG. 15 is a block diagram of an information determining apparatus provided by another exemplary embodiment of the present application.
  • FIG. 16 is a block diagram of an information determining apparatus provided by another exemplary embodiment of the present application.
  • FIG. 17 is a block diagram of an information determination device provided by another exemplary embodiment of the present application.
  • FIG. 18 is a structural block diagram of a first IAB base station provided by an exemplary embodiment of the present application.
  • FIG. 19 is a structural block diagram of a second IAB base station provided by an exemplary embodiment of the present application.
  • PDCCH channel A collection of a group of physical resource particles that can be used to carry DCI (Downlink Control Information).
  • DCI Downlink Control Information
  • the control information carried by the PDCCH channel includes public control information and dedicated control information.
  • Search space Defines the starting position of UE blind detection and the search method of PDCCH channel.
  • Control Resource Set It is a type of time-frequency resource set.
  • the UE performs PDCCH detection in the corresponding control resource set.
  • the control resource set is composed of a group of REG (Resource Element Group).
  • the random access process usually includes the following four steps:
  • the first step the UE sends MSG1 to the IAB base station, which is a random access preamble sequence.
  • the resource information for sending MSG1 can be obtained through RACH (Random Access Channel, random access channel) resource configuration.
  • RACH Random Access Channel, random access channel
  • the RACH resource configuration information configured for UE access is defined, including 256 types.
  • the cell can indicate the RACH resource configuration information used by itself to the UE in the system message.
  • Each kind of RACH resource configuration information includes preamble format, period, radio frame offset, subframe number in radio frame, starting symbol in subframe, number of PRACH slots in subframe, PRACH timing in PRACH slot The number of PRACH timing duration. Through this information, the time, frequency, and code information of the PRACH resource can be determined. In this way, the UE can send MSG1 on the corresponding PRACH resource according to the RACH resource configuration information indicated by the IAB base station.
  • Step 2 After detecting the MSG1 sent by the UE, the IAB base station sends a RAR (Random Access Response) (MSG2) to the UE to inform the UE of the uplink resource information that can be used when sending the next message (MSG3).
  • RAR Random Access Response
  • the IAB base station can also perform other operations, such as assigning a temporary RNTI (Radio Network Temporary Identity, wireless network temporary identity) to the UE, etc., which will not be introduced here.
  • RNTI Radio Network Temporary Identity, wireless network temporary identity
  • Step 3 The UE receives the RAR and sends MSG3 to the IAB base station on the uplink resource indicated by the RAR.
  • the UE may monitor the PDCCH in a search space within a RAR time window corresponding to the RAR to receive the RAR.
  • the RAR time window can be configured through high-level parameters, and the configuration information of the PDCCH search space can be indicated through a system message.
  • the MSG3 may carry UE-specific temporary identification information.
  • Step 4 After the IAB base station receives MSG3, it sends MSG4 to the UE.
  • the MSG4 includes a contention resolution message and also includes information on uplink transmission resources allocated to the UE.
  • the UE receives the MSG4 sent by the base station, it will detect whether the temporary identification information sent by the UE in MSG3 is included in the contention resolution message sent by the IAB base station. If it is included, it indicates that the random access process of the UE is successful. Otherwise, the random process is considered to have failed. Start the random access procedure again from the first step.
  • the message sent by the IAB base station to the UE is called a downlink message, for example, the downlink message is MSG2 or MSG4.
  • the random access process includes a four-step process.
  • the random access process may also include a two-step process.
  • the information determination method provided in the embodiment of the present application is also applicable.
  • the downlink message It is Msg B in the RACH process.
  • first downlink message and the second downlink message described below have the same principle, that is, MSG2 or MSG4 in the four-step random access process, and Msg B in the two-step random access process.
  • An IAB base station refers to a base station that provides users with wireless access, and usually requires a backhaul link to connect to the core network or other IAB base stations to facilitate data backhaul, as shown in Figure 2.
  • wireless backhaul such as microwave backhaul.
  • network capacity, complexity, and delay requirements are gradually increasing, and the number of mobile base stations is gradually increasing. Therefore, the application range of wireless backhaul is gradually expanding, making IAB base stations easier to deploy in dense and complex The scenario reduces the burden of deploying wired transmission networks.
  • the IAB base station can be called the parent node, that is, the IAB base station is the parent node of another IAB base station; Under the control of an IAB base station, the IAB base station can be called a child node, that is, the IAB base station is a child node of another IAB base station.
  • the IAB base station 1 can be called the parent node, and the IAB base station 1 is the parent node of the IAB base station 2; the IAB base station 2 can be called the parent node, and the IAB base station 2 is the parent node of the IAB base station 3. It should be understood that the IAB base station 2 is a child node of the IAB base station 1, and the IAB base station 3 is a child node of the IAB base station 2.
  • the child node is referred to as the first IAB base station, and the parent node is referred to as the second IAB base station, and the following description is based on this.
  • the first IAB base station cannot receive the second downlink message sent by the second IAB base station while sending the first downlink message to the UE, that is, Yes, in the search space for the same PDCCH, the first downlink message cannot be sent while the second downlink message is also received. Therefore, the PDCCH used to send the first downlink message to the UE and the PDCCH used to receive the second downlink message The search space needs to be separated in the time domain. For this reason, the embodiment of the present application provides an information determination method, which can make the search space for receiving the first downlink message and the PDCCH used for sending the second downlink message not overlapping in the time domain. For specific implementation, please refer to the following embodiments.
  • FIG. 3 is a schematic diagram showing an implementation environment according to an exemplary embodiment.
  • the implementation environment may include the first IAB base station 110, the second IAB base station 120, and the UE 130.
  • the UE 130 can access the IAB base station that provides services for itself.
  • the UE can access the first IAB base station 110, and the first IAB base station 110 can access the second IAB base station 120 to communicate with the second IAB base station.
  • the wireless backhaul link between the base stations 120 performs data backhaul, that is, a backhaul link is formed between the first IAB base station and the second IAB base station.
  • FIG. 4 is a flowchart of an information determination method according to an exemplary embodiment.
  • the information determination method can be applied to the implementation environment shown in FIG. 3 above.
  • the method may include the following Implementation steps:
  • Step 401 The first IAB base station determines first PDCCH configuration information, where the first PDCCH configuration information is at least used to indicate the search space of the PDCCH corresponding to the first downlink message sent by the first IAB base station during random access.
  • the first PDCCH configuration information may be sent by the second IAB base station, and used for the UE under the second IAB base station to receive the downlink message sent by the second IAB base station.
  • the first PDCCH configuration information may also be determined by the first IAB base station itself, and may be used by the UE under the first IAB base station to receive the downlink message sent by the first IAB base station. That is, in this application, the search space of the PDCCH configured by the first IAB base station and the second IAB base station for the UE to receive downlink messages is the same.
  • Step 402 The first IAB base station determines second PDCCH configuration information according to the first PDCCH configuration information.
  • the second PDCCH configuration information is at least used to indicate that the first IAB base station receives the PDCCH corresponding to the second downlink message during random access. Search space.
  • the first PDCCH configuration information cannot be used to receive the second downlink message sent by the second IAB base station. Therefore, it is necessary to re-determine according to the first PDCCH configuration information.
  • One piece of second PDCCH configuration information so that the first IAB base station uses the second PDCCH configuration information to receive the second downlink message sent by the second IAB base station.
  • the first PDCCH configuration information includes configuration information of a first time window corresponding to the first downlink message
  • the second PDCCH configuration information includes configuration information of a second time window corresponding to the second downlink message
  • the first PDCCH configuration information includes first search space configuration information
  • the second PDCCH configuration information includes second search space configuration information
  • the first PDCCH configuration information includes the first time corresponding to the first downlink message Window configuration information and first search space configuration information
  • the second PDCCH configuration information includes second time window configuration information and second search space configuration information corresponding to the second downlink message.
  • the time window corresponding to the downlink message exists periodically, including the starting position and the window length.
  • the time window corresponding to the downlink message is the RAR time window.
  • the first time window corresponding to the first downlink message is the first RAR time window
  • the second time window corresponding to the second downlink message is the second RAR time window.
  • the PDCCH may be monitored in the search space indicated by the first search space configuration information, so as to receive the first downlink message.
  • the PDCCH can be monitored in the search space indicated by the second search space configuration information within the second time window corresponding to the second downlink message, so as to receive the second downlink message.
  • the first PDCCH configuration information is also used to instruct the first IAB base station to send the first downlink message within the corresponding first time window
  • the second PDCCH configuration information is also used to instruct the first IAB base station The second downlink message is received in the corresponding second time window.
  • the first PDCCH configuration information is determined, and the first PDCCH configuration is used to at least instruct the first IAB base station to send the PDCCH search space corresponding to the first downlink message, and determine the second PDCCH configuration information according to the first PDCCH PDCCH configuration information, where the second PDCCH configuration information is at least used to indicate the search space for the first IAB base station to receive the PDCCH corresponding to the second downlink message. That is, the PDCCH configuration information used by the UE to receive the first downlink message is distinguished from the PDCCH configuration information used by the first IAB base station in the backhaul link to receive the second downlink message, so that the first IAB base station receives the second downlink message.
  • the search space of the PDCCH of the downlink message and the search space of the PDCCH of the first downlink message do not overlap in time domain, which solves the half-duplex restriction problem of the first IAB base station receiving the second downlink message and sending the first downlink message.
  • Fig. 5 is a flow chart showing a method for determining information according to an exemplary embodiment.
  • the method for determining information can be applied to the implementation environment shown in Fig. 3, where the first PDCCH configuration information includes the first search space.
  • Step 501 Determine first search space configuration information.
  • the first search space configuration information is used to configure the search space for the UE to receive the PDCCH corresponding to the first downlink message.
  • the UE monitors the corresponding PDCCH in the search space within the first time window indicated by the first time window parameter based on the first search space configuration information and the first time window parameter configured by the high-level parameters to receive The first downlink message sent by the first IAB base station.
  • the high-level parameter may be ra-ResponseWindow.
  • Step 502 Determine second search space configuration information according to the first search space configuration information and the first time domain offset.
  • a time domain offset can be added to generate new second search space configuration information used by the IAB base station to receive the second downlink message. Since the second search space configuration information is different from the first search space configuration information, that is, a time domain offset is different, it is not difficult to understand that the search spaces indicated by the two are not the same in the time domain.
  • the first time domain offset includes a slot offset
  • the slot offset is used to determine the number of slots offset on the slot. That is, the first search space configuration information may be time-domain offset at the time slot level to obtain the second search space configuration information. Further, it is also possible to extract part of the PDCCH monitoring opportunities and perform slot-level offset.
  • the time slot offset is a reference time slot offset
  • the reference time slot offset is greater than or equal to the parameter value of the first parameter
  • the first parameter is used to indicate the monitoring physical The number of consecutive time slots of the downlink control channel PDCCH.
  • the time slot offset may be a predefined reference time slot offset, and in order to ensure that there is no overlap in the time domain, it is necessary to consider the magnitude relationship between the reference time slot offset and the first parameter.
  • the reference time slot offset needs to be greater than or It is equal to 2 to ensure that the search space corresponding to the second search space configuration information and the search space corresponding to the first search space configuration information do not overlap in the time domain.
  • the reference slot offset may be introduced in the monitoringSlotPeriodicityAndOffset parameter of the search space, so as to determine the second search space configuration information different from the first search space configuration information according to the reference slot offset.
  • the monitoringSlotPeriodicityAndOffset parameter is used to indicate the monitoring timing and offset for the UE to receive the PDCCH corresponding to the first downlink message.
  • the offset is 0, and the number of consecutively monitored time slots is 1, as shown in Figure 6.
  • the reference time slot offset can be increased through the predefined time domain offset method.
  • the reference time slot offset can be an integer greater than or equal to 1. Assuming that the reference time slot offset is equal to 1, the second The listening timing corresponding to the search space configuration information is shown in Figure 7.
  • the time slot offset is indicated by the second IAB base station.
  • the time slot offset may also be indicated by the second IAB base station to the first IAB base station.
  • the second IAB base station may indicate the time slot offset through a system message.
  • Add a new parameter to the system message can be defined as ra-SearchSpace-SlotOffset-IAB, so that the new ra-SearchSpace-SlotOffset-IAB parameter indicates the time that the first IAB base station needs to use. Domain offset.
  • the new parameter can be defined in the standard as follows:
  • the slot offset takes the first parameter as the unit, that is, the parameter value of the newly added parameter is used to indicate how many durations are offset. Therefore, the slot offset and the first parameter The product of the parameter values of is used to indicate the actual time domain offset, that is, the actual time domain offset is the result of multiplying the ra-SearchSpace-SlotOffset-IAB and the duration parameter.
  • the value range of this parameter can be [1, N], and the N can be a fixed positive integer, or it can also be the time slot included in the PDCCH listening period configured in the first search space configuration information The number of.
  • the introduction of a slot-level time-domain offset parameter for the configuration of the search space of the PDCCH can simply obtain the listening timing of the PDCCH corresponding to the second downlink message received by the first IAB base station.
  • the number of messages is small, the message overhead is small, and the impact on the existing communication system is small.
  • the first PDCCH configuration information is determined, and the first PDCCH configuration is used to at least instruct the first IAB base station to send the PDCCH search space corresponding to the first downlink message, and determine the second PDCCH configuration information according to the first PDCCH PDCCH configuration information, where the second PDCCH configuration information is at least used to indicate the search space for the first IAB base station to receive the PDCCH corresponding to the second downlink message. That is, the PDCCH configuration information used by the UE to receive the first downlink message is distinguished from the PDCCH configuration information used by the first IAB base station in the backhaul link to receive the second downlink message, so that the first IAB base station receives the second downlink message.
  • the search space of the PDCCH of the downlink message and the search space of the PDCCH of the first downlink message do not overlap in time domain, which solves the half-duplex restriction problem of the first IAB base station receiving the second downlink message and sending the first downlink message.
  • Fig. 8 is a flow chart showing a method for determining information according to an exemplary embodiment.
  • the method for determining information can be applied to the implementation environment shown in Fig. 3, where the first PDCCH configuration information includes the first search space.
  • Step 801 Determine the first search space configuration information.
  • the first search space configuration information is used to configure the search space for the UE to receive the PDCCH corresponding to the first downlink message.
  • the UE monitors the corresponding PDCCH in the search space within the first time window indicated by the first time window parameter based on the first search space configuration information and the first time window parameter configured by the high-level parameters to receive The first downlink message sent by the first IAB base station.
  • the high-level parameter may be ra-ResponseWindow.
  • Step 802 Determine second search space configuration information according to the first search space configuration information.
  • a time domain offset can be added to generate new second search space configuration information used by the IAB base station to receive the second downlink message. Since the second search space configuration information is different from the first search space configuration information, that is, a time domain offset is different, it is not difficult to understand that the search spaces indicated by the two are not the same in the time domain.
  • the first time domain offset includes a symbol offset
  • the symbol offset is used to determine the number of symbols offset on a symbol in a slot. That is, the first search space configuration information can be offset in the symbol-level time domain to obtain the second search space configuration information. Further, it is also possible to extract part of the PDCCH monitoring occasions and perform symbol-level offset.
  • the symbol offset is a reference symbol offset
  • the reference symbol offset is greater than or equal to the parameter value of the second parameter
  • the second parameter is used to indicate that the physical downlink control is monitored within a period The consecutive symbol positions of the channel PDCCH.
  • the symbol offset may be a predefined reference symbol offset, and in order to ensure that there is no overlap in the time domain, the magnitude relationship between the reference symbol offset and the second parameter needs to be considered.
  • the reference symbol offset is introduced by monitoringSymbolsWithinSlot in the first search space configuration information, thereby determining the second search space configuration information different from the first search space configuration information according to the reference symbol offset, where monitoringSymbolsWithinSlot
  • the parameter is used to indicate the position of the first symbol of the PDCCH to be monitored in the time slot corresponding to the UE receiving the first downlink message.
  • the reference symbol offset can be increased through the predefined time domain offset method.
  • the reference symbol offset can be an integer greater than or equal to 2.
  • the second search space configuration can be obtained The monitoring timing corresponding to the information is shown in Figure 10.
  • the symbol offset is indicated by the second IAB base station.
  • the symbol offset may also be indicated by the second IAB base station to the first IAB base station.
  • the second IAB base station may indicate the symbol offset through a system message.
  • the symbol offset may be indicated in the system A new parameter is added to the message.
  • the new parameter can be defined as ra-SearchSpace-SlotOffset-IAB, so that the new ra-SearchSpace-SlotOffset-IAB parameter indicates the time domain offset that the first IAB base station needs to use. shift.
  • the new parameter can be defined in the standard as follows:
  • the symbol offset is in the unit of the second parameter, that is, the parameter value of the newly added parameter is used to indicate how many durations are offset. Therefore, the symbol offset is the same as the parameter of the second parameter.
  • the product between the values is used to indicate the actual time domain offset, that is, the actual time domain offset is the result of multiplying the ra-SearchSpace-SlotOffset-IAB and the duration parameter.
  • the value range of the parameter may be [1, N], and the N may be a fixed positive integer.
  • the introduction of a symbol-level time-domain offset parameter for the configuration of the PDCCH search space can simply obtain the PDCCH listening time corresponding to the second downlink message received during the random access process of the first IAB base station.
  • the number of messages added in the message is small, the message overhead is small, and the impact on the existing communication system is small.
  • the first PDCCH configuration information is determined, and the first PDCCH configuration is used to at least instruct the first IAB base station to send the PDCCH search space corresponding to the first downlink message, and determine the second PDCCH configuration information according to the first PDCCH PDCCH configuration information, where the second PDCCH configuration information is at least used to indicate the search space for the first IAB base station to receive the PDCCH corresponding to the second downlink message. That is, the PDCCH configuration information used by the UE to receive the first downlink message is distinguished from the PDCCH configuration information used by the first IAB base station in the backhaul link to receive the second downlink message, so that the first IAB base station receives the second downlink message.
  • the search space of the PDCCH of the downlink message and the search space of the PDCCH of the first downlink message do not overlap in time domain, which solves the half-duplex restriction problem of the first IAB base station receiving the second downlink message and sending the first downlink message.
  • the foregoing is only an example for performing slot-level time-domain offset or symbol-level time-domain offset for the first search space configuration information.
  • the A search space configuration information performs slot-level and symbol-level time domain offset at the same time, that is, the first time domain offset includes slot offset and symbol offset.
  • the first time domain offset includes slot offset and symbol offset.
  • Fig. 11 is a flow chart showing a method for determining information according to an exemplary embodiment.
  • the method for determining information can be applied to the implementation environment shown in Fig. 3, where the first PDCCH configuration information includes the first download The configuration information of the first time window corresponding to the line message, and the second PDCCH configuration information includes the configuration information of the second time window corresponding to the second downlink message.
  • the method may include the following implementation steps:
  • Step 1101 Determine the configuration information of the first time window.
  • the configuration information of the first time window may be configured through high-level parameters, for example, the high-level parameter may be ra-ResponseWindow.
  • the UE monitors the PDCCH in the search space within the first time window to receive the first downlink message.
  • Step 1102 Determine the configuration information of the second time window according to the configuration information of the first time window and the second time domain offset.
  • the PDCCH cannot be monitored in the first time window. Therefore, a time domain offset can be added here according to the configuration information of the first time window, thereby The configuration information of the new second time window is generated, so that the first IAB base station monitors the PDCCH in the second time window, that is, monitors the PDCCH in different time windows to ensure that there is no overlap in the time domain.
  • the search space configuration information used at this time can be obtained through system messages, that is, it can be the same as the search space configuration information used by the UE. Because the listening windows are different, it can be ensured that the time domains of the search spaces do not overlap.
  • the realization of determining the configuration information of the second time window may include: according to the start of the first time window The position and window length information, and the second time domain offset determine the starting position of the second time window and the window length information.
  • the configuration information of the time window includes the start position and window length information.
  • the start position of the first time window may be time-domain offset based on the second time-domain offset, so that The start position of the second time window is different from the start position of the first time window, thereby ensuring that the time domains do not overlap.
  • the window length of the second time window may need to be shortened, so the window length information of the second time window may also be determined according to the second time domain offset.
  • the time window length threshold can be set in advance according to actual requirements, for example, the time window length threshold can be 10 ms and so on.
  • the implementation of determining the configuration information of the second time window may include: The start position and the second time domain offset determine the start position of the second time window.
  • the start position of the first time window may be time domain offset, so that the start position of the second time window is different from the start position of the first time window , So as to ensure that the time domain does not overlap.
  • the window length of the second time window may be the same as the window length of the first time window, that is, the window length information of the first time window may be determined as the window length information of the second time window.
  • the foregoing second time domain offset may be predefined, or the second time domain offset may also be indicated by the second IAB base station.
  • the second time domain offset may be determined by The second IAB base station instructs the first IAB base station through a system message, which is not limited in the embodiment of the present application.
  • time-domain offset of the starting position of the first time window is only the time-domain offset of the starting position of the first time window as an example for description.
  • this implementation can also be combined with the foregoing embodiments, for example, It is also possible to perform time-domain and/or symbol-level time-domain offset on the first search space configuration information while performing time-domain offset on the starting position of the first time window, which is not limited in this embodiment of the application. .
  • Fig. 12 is a flowchart showing a method for determining information according to an exemplary embodiment.
  • the method for determining information may be applied to the implementation environment shown in Fig. 3 above.
  • the method may include the following implementation steps:
  • Step 1201 Determine second search space configuration information, where the second search space configuration information is used for the search space of the PDCCH corresponding to the second downlink message received during the random access process of the first IAB base station.
  • a set of search space configuration information (ie, the second search space configuration information) can be redefined to instruct the first IAB base station to receive the search space of the PDCCH corresponding to the second downlink message through the second search space configuration.
  • the search space of the PDCCH indicated by the second search space configuration information and the search space of the PDCCH indicated by the first search space configuration information do not overlap in the time domain, that is, the PDCCH monitoring timing is different.
  • the implementation of determining the second search space configuration information may include: determining a third parameter and/or a fourth parameter in the second search space configuration information, where the third parameter is used to instruct the first IAB base station to randomly access In the process, the PDCCH monitoring timing corresponding to the second downlink message is received, and the fourth parameter is used to indicate the symbol position of the first IAB base station to receive the second downlink message in the same time slot.
  • the third parameter may be the monitoringSlotPeriodicityAndOffset parameter, that is, the parameter can be used to ensure that the search space of the PDCCH corresponding to the second downlink message sent by the second IAB base station and the PDCCH corresponding to the first downlink message sent by the first IAB base station
  • the search space has different PDCCH monitoring timings, that is, the Type1-PDCCH common search space of the first IAB base station and the second IAB base station have different PDCCH monitoring timings.
  • the fourth parameter may be the monitoringSymbolsWithinSlot parameter, that is, the parameter can be used to ensure that the Type1-PDCCH common search space of the first IAB base station and the second IAB base station monitor the PDCCH on different symbols in the same time slot.
  • the embodiment of this application can configure the corresponding search space configuration information for the first IAB base station to receive the second downlink message and send the first downlink message, which can solve the problem that the first IAB base station receives the second downlink message and sends the second downlink message.
  • the half-duplex restriction of the first downlink message simplifies the modification of the standard.
  • Fig. 13 is a flowchart showing a method for determining information according to an exemplary embodiment.
  • the method for determining information may be applied to the implementation environment shown in Fig. 3 above.
  • the method may include the following implementation steps:
  • Step 1301 Determine configuration information of the second time window, where the configuration information of the second time window is used to instruct the first IAB base station to receive the second downlink message in the corresponding second time window.
  • the implementation of determining the configuration information of the second time window may include: determining the starting position of the second time window and/or window length information.
  • a second time window can be redefined.
  • the start position of the second time window and the first time window can be different.
  • the following two possible implementation manners can be used to determine the starting position of the second time window:
  • the start position of the second time window is located at least N symbols after the last symbol of the PRACH monitoring opportunity and the first symbol of the nearest control resource set, where N is an integer greater than 1.
  • the number of symbols between the last symbol of the PRACH monitoring opportunity and the first symbol of the nearest control resource set is the same as the last symbol of the PRACH monitoring opportunity when the start position of the first time window is determined.
  • the number of symbols between the first symbols of the control resource set is different, so as to ensure that the start positions of the first time window and the second time window are different.
  • the start position of the second time window is located at least 1 symbol after the last symbol of the PRACH monitoring opportunity and the first symbol of the M-th control resource set, where M is greater than 1. Integer.
  • control resource set is configured by ra-SearchSpace configuration information.
  • the window length information of the second time window can also be set.
  • the configuration of the length information of the second time window can be implemented in the following form:
  • This method does not rely on the method for determining the first time window and related configuration parameters, but defines a new starting position for determining the second time window and related configuration parameters for the first IAB base station, which can simplify the modification of the standard.
  • the second IAB base station also needs to determine the second search space configuration information in order to determine which PDCCH search space to send the second downlink message, and the second IAB base station determines the second search space configuration information
  • the implementation manner of is corresponding to and the same as the manner in which the first IAB base station determines the second search space configuration information, and the description will not be repeated here.
  • Fig. 14 shows a device for determining information according to an exemplary embodiment.
  • the device is applied to a first IAB base station.
  • the device may include:
  • the first determining module 1410 is configured to determine first physical downlink control channel PDCCH configuration information, where the first PDCCH configuration information is at least used to instruct the first IAB base station to send the PDCCH corresponding to the first downlink message during the random access process
  • the second determining module 1420 is configured to determine second PDCCH configuration information according to the first PDCCH configuration information, where the second PDCCH configuration information is at least used to instruct the first IAB base station to receive a second downlink message The search space of the corresponding PDCCH.
  • the first PDCCH configuration information includes configuration information of a first time window corresponding to the first downlink message
  • the second PDCCH configuration information includes the second downlink message
  • the information includes configuration information of the first time window corresponding to the first downlink message and first search space configuration information
  • the second PDCCH configuration information includes configuration information of the second time window corresponding to the second downlink message and The second search space configuration information.
  • the second determining module 1420 is configured to: determine the second search space configuration information according to the first search space configuration information and the first time domain offset; and/ Or, determine the configuration information of the second time window according to the configuration information of the first time window and the second time domain offset.
  • the first time domain offset includes a time slot offset and/or a symbol offset
  • the time slot offset is used to determine the number of time slots offset on the time slot.
  • the symbol offset is used to determine the number of symbols offset on the symbols in the time slot.
  • the time slot offset is a reference time slot offset
  • the reference time slot offset is greater than or equal to a parameter value of a first parameter
  • the first parameter is used to indicate a The number of consecutive time slots for monitoring the physical downlink control channel PDCCH in the period; or, the time slot offset is indicated by the second IAB base station.
  • the symbol offset is a reference symbol offset, and the reference symbol offset is greater than or equal to a parameter value of a second parameter, and the second parameter is used to indicate the monitoring of The consecutive symbol positions of the physical downlink control channel PDCCH; or, the symbol offset is indicated by the second IAB base station.
  • the second determining module 1420 is configured to: determine the first time window according to the start position and window length information of the first time window, and the second time domain offset The start position of the second time window and window length information.
  • FIG. 15 is a device for determining information according to an exemplary embodiment, which is applied to a first IAB base station, and the device may include:
  • the third determining module 1510 is configured to determine second search space configuration information, and/or determine configuration information of the second time window; wherein, the second search space configuration information is used to instruct the first IAB base station to randomly access The search space of the PDCCH corresponding to the second downlink message is received during the incoming process, and the configuration information of the second time window is used to instruct the first IAB base station to receive the second downlink message within the corresponding second time window.
  • the third determining module 1510 is configured to determine the third parameter and/or the fourth parameter in the second search space configuration information, and the third parameter is used to indicate The PDCCH listening timing corresponding to the second downlink message received during the random access process of the first IAB base station, and the fourth parameter is used to indicate the symbol for the first IAB base station to receive the second downlink message in the same time slot position.
  • the third determining module 1510 is configured to determine the starting position of the second time window and/or window length information.
  • the start position of the second time window is located at least N symbols after the last symbol of the physical random access channel PRACH monitoring opportunity in the first of the nearest control resource set. Symbols, and the N is an integer greater than 1.
  • the start position of the second time window is located at the first symbol of the M-th control resource set after at least one symbol after the last symbol of the PRACH monitoring opportunity, so Said M is an integer greater than 1.
  • FIG. 16 is a device for determining information according to an exemplary embodiment, which is applied to a second IAB base station, and the device includes:
  • the fourth determining module 1610 is configured to determine the first physical downlink control channel PDCCH configuration information, where the first PDCCH configuration information is at least used to instruct the first IAB base station to send the PDCCH corresponding to the first downlink message during the random access process
  • the search space ;
  • a fifth determining module 1620 configured to determine second PDCCH configuration information according to the first PDCCH configuration information, where the second PDCCH configuration information is at least used to instruct the first IAB base station to receive a second downlink message The search space of the corresponding PDCCH.
  • the first PDCCH configuration information includes configuration information of a first time window corresponding to the first downlink message
  • the second PDCCH configuration information includes the second downlink message
  • the information includes configuration information of the first time window corresponding to the first downlink message and first search space configuration information
  • the second PDCCH configuration information includes configuration information of the second time window corresponding to the second downlink message and The second search space configuration information.
  • the fifth determining module 1620 is configured to: determine the second search space configuration information according to the first search space configuration information and the first time domain offset; and/ Or, determine the configuration information of the second time window according to the configuration information of the first time window and the second time domain offset.
  • the first time domain offset includes a time slot offset and/or a symbol offset
  • the time slot offset is used to determine the number of time slots offset on the time slot.
  • the symbol offset is used to determine the number of symbols offset on the symbols in the time slot.
  • the time slot offset is a reference time slot offset
  • the reference time slot offset is greater than or equal to a parameter value of a first parameter
  • the first parameter is used to indicate a The number of consecutive time slots for monitoring the physical downlink control channel PDCCH in the period; or, the time slot offset is indicated by the second IAB base station.
  • the symbol offset is a reference symbol offset, and the reference symbol offset is greater than or equal to a parameter value of a second parameter, and the second parameter is used to indicate the monitoring of The consecutive symbol positions of the physical downlink control channel PDCCH; or, the symbol offset is indicated by the second IAB base station.
  • the fifth determining module 1620 is configured to: determine the first time window according to the start position and window length information of the first time window, and the second time domain offset The start position of the second time window and window length information.
  • FIG. 17 is a device for determining information according to an exemplary embodiment, which is applied to a second IAB base station, and the device includes:
  • the sixth determining module 1710 is configured to determine second search space configuration information, and/or determine configuration information of the second time window; wherein, the second search space configuration information is used to instruct the first IAB base station to randomly access The search space of the PDCCH corresponding to the second downlink message is received during the incoming process, and the configuration information of the second time window is used to instruct the first IAB base station to receive the second downlink message within the corresponding second time window.
  • the sixth determining module 1710 is configured to determine the third parameter and/or the fourth parameter in the second search space configuration information, and the third parameter is used to indicate The PDCCH monitoring timing for the first IAB base station to receive the second downlink message, and the fourth parameter is used to indicate the symbol position at which the first IAB base station receives the second downlink message in the same time slot.
  • the sixth determining module 1710 is configured to determine the starting position of the second time window and/or window length information.
  • the start position of the second time window is located at least N symbols after the last symbol of the physical random access channel PRACH monitoring opportunity in the first of the nearest control resource set. Symbols, and the N is an integer greater than 1.
  • the start position of the second time window is located at the first symbol of the M-th control resource set after at least one symbol after the last symbol of the PRACH monitoring opportunity, so Said M is an integer greater than 1.
  • FIG. 18 shows a schematic structural diagram of a first IAB base station provided by an exemplary embodiment of the present application.
  • the first IAB base station includes: a processor 1801, a receiver 1802, a transmitter 1803, a memory 1804, and a bus 1805 .
  • the processor 1801 includes one or more processing cores, and the processor 1801 executes various functional applications and information processing by running software programs and modules.
  • the receiver 1802 and the transmitter 1803 may be implemented as a communication component, and the communication component may be a communication chip.
  • the memory 1804 is connected to the processor 1801 through a bus 1805.
  • the memory 1804 may be used to store at least one instruction, and the processor 1801 is used to execute the at least one instruction, so as to implement each step executed by the first IAB base station in the foregoing method embodiments.
  • the memory 1804 can be implemented by any type of volatile or non-volatile storage device or a combination thereof.
  • the volatile or non-volatile storage device includes, but is not limited to: magnetic or optical disk, electrically erasable and programmable Read-only memory (EEPROM), erasable programmable read-only memory (EPROM), static anytime access memory (SRAM), read-only memory (ROM), magnetic memory, flash memory, programmable read-only memory (PROM) .
  • the present application provides a computer-readable storage medium in which at least one instruction is stored, and the at least one instruction is loaded and executed by the processor to implement the information determination method provided by the foregoing method embodiments.
  • the present application also provides a computer program product, which when the computer program product runs on a computer, causes the computer to execute the information determination method provided by the foregoing method embodiments.
  • FIG. 19 shows a schematic structural diagram of a second IAB base station provided by an exemplary embodiment of the present application.
  • the second IAB base station includes: a processor 1901, a receiver 1902, a transmitter 1903, a memory 1904, and a bus 1905 .
  • the processor 1901 includes one or more processing cores.
  • the processor 1901 executes various functional applications and information processing by running software programs and modules.
  • the receiver 1902 and the transmitter 1903 may be implemented as a communication component, and the communication component may be a communication chip.
  • the memory 1904 is connected to the processor 1901 through the bus 1905.
  • the memory 1904 may be used to store at least one instruction, and the processor 1901 is used to execute the at least one instruction, so as to implement each step performed by the second IAB base station in the foregoing method embodiments.
  • the memory 1904 can be implemented by any type of volatile or non-volatile storage device or a combination thereof.
  • the volatile or non-volatile storage device includes, but is not limited to: magnetic disks or optical disks, electrically erasable and programmable Read-only memory (EEPROM), erasable programmable read-only memory (EPROM), static anytime access memory (SRAM), read-only memory (ROM), magnetic memory, flash memory, programmable read-only memory (PROM) .
  • the present application provides a computer-readable storage medium in which at least one instruction is stored, and the at least one instruction is loaded and executed by the processor to implement the information determination method provided by the foregoing method embodiments.
  • the present application also provides a computer program product, which when the computer program product runs on a computer, causes the computer to execute the information determination method provided by the foregoing method embodiments.
  • Computer readable media include computer storage media and communication media, where communication media includes any media that facilitates the transfer of computer programs from one place to another.
  • the storage medium may be any available medium that can be accessed by a general-purpose or special-purpose computer.

Landscapes

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

Abstract

本申请提供了一种信息确定方法、装置、系统、设备及存储介质,涉及通信技术领域。所述方法包括:确定第一物理下行控制信道PDCCH配置信息,第一PDCCH配置信息至少用于指示第一IAB基站随机接入过程中发送第一下行消息对应的PDCCH的搜索空间;根据第一PDCCH配置信息,确定第二PDCCH配置信息,第二PDCCH配置信息至少用于指示第一IAB基站随机接入过程中接收第二下行消息对应的PDCCH的搜索空间。将UE接收第一下行消息使用的PDCCH配置信息与回传链路中第一IAB基站接收第二下行消息使用的PDCCH配置信息区分开来,使得第一IAB基站接收第二下行消息的PDCCH的搜索空间与发送第一下行消息的PDCCH的搜索空间时域不重叠,解决了第一IAB基站接收第二下行消息和发送第一下行消息的半双工限制问题。

Description

一种信息确定方法、装置、系统、设备及存储介质 技术领域
本申请涉及通信技术领域,特别涉及一种信息确定方法、装置、系统、设备及存储介质。
背景技术
IAB(Integrated Access and Backhaul,接入回传一体化)基站集成了无线接入链路和无线回传链路,其中,无线接入链路为UE(User Equipment,终端设备)与IAB基站之间的通信链路,无线回传链路为IAB基站与其他IAB基站之间的通信链路,用于数据的回传。
在随机接入过程中,UE可以接入为其提供服务的第一IAB基站,该第一IAB基站可以接入其他第二IAB基站。随机接入一般包括多个过程,以UE接入第一IAB基站为例,对于第一IAB基站发送给UE的下行消息,UE根据系统消息中指示的搜索空间配置信息和高层配置的时间窗参数,在时间窗参数对应的时间窗内,在该搜索空间配置信息指示的搜索空间中监听PDCCH(Physical Downlink Control CHannel,物理下行控制信道),以接收该下行消息,从而随机接入该第一IAB基站。
对于第一IAB基站而言不仅要向UE发送下行消息,还要接收第二IAB基站发送的下行消息,而在一些实施例中,第一IAB基站和第二IAB基站可能配有相同的搜索空间,此时,受半双工的限制,第一IAB基站无法同时使用相同的搜索空间接收第二IAB基站发送的下行消息和向UE发送下行消息,因此,该第一IAB基站和第二IAB基站配置的搜索空间在时域上需要是分开的。
发明内容
本申请实施例提供了一种信息确定方法、装置、系统、设备及存储介质,可以解决第一IAB基站和第二IAB基站配置的搜索空间在时域上需要是分开的问题。具体技术方案如下:
第一方面,提供了一种信息确定方法,应用于第一接入回传一体化IAB基站中,所述方法包括:确定第一物理下行控制信道PDCCH配置信息,所述第一PDCCH配置信息至少用于指示所述第一IAB基站随机接入过程中发送第一下行消息对应的PDCCH的搜索空间;根据所述第一PDCCH配置信息,确定第二PDCCH配置信息,所述第二PDCCH配置信息至少用于指示所述第一IAB基站随机接入过程中接收第二下行消息对应的PDCCH的搜索空间。
在本申请一种可能的实现方式中,所述第一PDCCH配置信息包括所述第一下行消息对应的第一时间窗的配置信息,所述第二PDCCH配置信息包括所述第二下行消息对应的第二时间窗的配置信息;或者,所述第一PDCCH配置信息包括第一搜索空间配置信息,所述第二PDCCH配置信息包括第二搜索空间配置信息;或者,所述第一PDCCH配置信息包括所述第一下行消息对应的第一时间窗的配置信息和第一搜索空间配置信息,所述第二PDCCH配置信息包括所述第二下行消息对应的第二时间窗的配置信息和第二搜索空间配置信息。
在本申请一种可能的实现方式中,所述根据所述第一PDCCH配置信息,确定第二PDCCH配置信息,包括:根据所述第一搜索空间配置信息和第一时域偏移,确定所述第二搜索空间配置信息;和/或,根据所述第一时间窗的配置信息和第二时域偏移,确定所述第二时间窗的 配置信息。
在本申请一种可能的实现方式中,所述第一时域偏移包括时隙偏移和/或符号偏移,所述时隙偏移用于确定在时隙上偏移的时隙数,所述符号偏移用于确定在时隙内的符号上偏移的符号数。
在本申请一种可能的实现方式中,所述时隙偏移为参考时隙偏移,所述参考时隙偏移大于或等于第一参数的参数值,所述第一参数用于指示一个周期内监听物理下行控制信道PDCCH的连续的时隙个数;或者,所述时隙偏移由所述第二IAB基站指示。
在本申请一种可能的实现方式中,所述符号偏移为参考符号偏移,所述参考符号偏移大于或等于第二参数的参数值,所述第二参数用于指示一个周期内监听物理下行控制信道PDCCH的连续的符号位置;或者,所述符号偏移由所述第二IAB基站指示。
在本申请一种可能的实现方式中,所述根据所述第一时间窗的配置信息和第二时域偏移,确定所述第二时间窗的配置信息,包括:根据所述第一时间窗的起始位置和窗口长度信息,以及所述第二时域偏移,确定所述第二时间窗的起始位置和窗口长度信息;或者,根据所述第一时间窗的起始位置和所述第二时域偏移,确定所述第二时间窗的起始位置。
第二方面,提供一种信息确定方法,应用于第一接入回传一体化IAB基站中,所述方法包括:确定第二搜索空间配置信息,和/或,确定第二时间窗的配置信息;其中,所述第二搜索空间配置信息用于指示所述第一IAB基站随机接入过程中接收第二下行消息对应的PDCCH的搜索空间,所述第二时间窗的配置信息用于指示所述第一IAB基站在对应的第二时间窗内接收所述第二下行消息。
在本申请一种可能的实现方式中,所述确定第二搜索空间配置信息,包括:确定所述第二搜索空间配置信息中的第三参数和/或第四参数,所述第三参数用于指示所述第一IAB基站随机接入过程中接收第二下行消息对应的PDCCH监听时机,所述第四参数用于指示所述第一IAB基站在相同时隙内接收所述第二下行消息的符号位置。
在本申请一种可能的实现方式中,所述确定第二时间窗的配置信息,包括:确定所述第二时间窗的起始位置和/或窗口长度信息。
在本申请一种可能的实现方式中,所述第二时间窗的起始位置位于物理随机接入信道PRACH监听时机的最后一个符号之后的至少N个符号之后的最近的控制资源集的第一个符号,所述N为大于1的整数。
在本申请一种可能的实现方式中,所述第二时间窗的起始位置位于PRACH监听时机的最后一个符号之后的至少一个符号之后的第M个的控制资源集的第一个符号,所述M为大于1的整数。
第三方面,提供了一种信息确定方法,应用于第二接入回传一体化IAB基站中,所述方法包括:确定第一物理下行控制信道PDCCH配置信息,所述第一PDCCH配置信息至少用于指示所述第一IAB基站随机接入过程中发送第一下行消息对应的PDCCH的搜索空间;根据所述第一PDCCH配置信息,确定第二PDCCH配置信息,所述第二PDCCH配置信息至少用于指示所述第一IAB基站随机接入过程中接收第二下行消息对应的PDCCH的搜索空间。
在本申请一种可能的实现方式中,所述第一PDCCH配置信息包括所述第一下行消息对应的第一时间窗的配置信息,所述第二PDCCH配置信息包括所述第二下行消息对应的第二时间窗的配置信息;或者,所述第一PDCCH配置信息包括第一搜索空间配置信息,所述第二PDCCH配置信息包括第二搜索空间配置信息;或者,所述第一PDCCH配置信息包括所 述第一下行消息对应的第一时间窗的配置信息和第一搜索空间配置信息,所述第二PDCCH配置信息包括所述第二下行消息对应的第二时间窗的配置信息和第二搜索空间配置信息。
在本申请一种可能的实现方式中,所述根据所述第一PDCCH配置信息,确定第二PDCCH配置信息,包括:根据所述第一搜索空间配置信息和第一时域偏移,确定所述第二搜索空间配置信息;和/或,根据所述第一时间窗的配置信息和第二时域偏移,确定所述第二时间窗的配置信息。
在本申请一种可能的实现方式中,所述第一时域偏移包括时隙偏移和/或符号偏移,所述时隙偏移用于确定在时隙上偏移的时隙数,所述符号偏移用于确定在时隙内的符号上偏移的符号数。
在本申请一种可能的实现方式中,所述时隙偏移为参考时隙偏移,所述参考时隙偏移大于或等于第一参数的参数值,所述第一参数用于指示一个周期内监听物理下行控制信道PDCCH的连续的时隙个数;或者,所述时隙偏移由所述第二IAB基站指示。
在本申请一种可能的实现方式中,所述符号偏移为参考符号偏移,所述参考符号偏移大于或等于第二参数的参数值,所述第二参数用于指示一个周期内监听物理下行控制信道PDCCH的连续的符号位置;或者,所述符号偏移由所述第二IAB基站指示。
在本申请一种可能的实现方式中,所述根据所述第一时间窗的配置信息和第二时域偏移,确定所述第二时间窗的配置信息,包括:根据所述第一时间窗的起始位置和窗口长度信息,以及所述第二时域偏移,确定所述第二时间窗的起始位置和窗口长度信息;或者,根据所述第一时间窗的起始位置和所述第二时域偏移,确定所述第二时间窗的起始位置。
第四方面,提供了一种信息确定方法,应用于第二接入回传一体化IAB基站中,所述方法包括:确定第二搜索空间配置信息,和/或,确定第二时间窗的配置信息;其中,所述第二搜索空间配置信息用于指示所述第一IAB基站随机接入过程中接收第二下行消息对应的PDCCH的搜索空间,所述第二时间窗的配置信息用于指示所述第一IAB基站在对应的第二时间窗内接收所述第二下行消息。
在本申请一种可能的实现方式中,所述确定第二搜索空间配置信息,包括:确定所述第二搜索空间配置信息中的第三参数和/或第四参数,所述第三参数用于指示所述第一IAB基站随机接入过程中接收第二下行消息对应的PDCCH监听时机,所述第四参数用于指示所述第一IAB基站在相同时隙内接收所述第二下行消息的符号位置。
在本申请一种可能的实现方式中,所述确定第二时间窗的配置信息,包括:确定所述第二时间窗的起始位置和/或窗口长度信息。
在本申请一种可能的实现方式中,所述第二时间窗的起始位置位于物理随机接入信道PRACH监听时机的最后一个符号之后的至少N个符号之后的最近的控制资源集的第一个符号,所述N为大于1的整数。
在本申请一种可能的实现方式中,所述第二时间窗的起始位置位于PRACH监听时机的最后一个符号之后的至少一个符号之后的第M个的控制资源集的第一个符号,所述M为大于1的整数。
第五方面,提供了一种信息确定装置,所述装置应用于第一IAB基站中,所述装置包括:第一确定模块,用于确定第一物理下行控制信道PDCCH配置信息,所述第一PDCCH配置信息至少用于指示所述第一IAB基站随机接入过程中发送第一下行消息对应的PDCCH的搜索空间;第二确定模块,用于根据所述第一PDCCH配置信息,确定第二PDCCH配置信息, 所述第二PDCCH配置信息至少用于指示所述第一IAB基站随机接入过程中接收第二下行消息对应的PDCCH的搜索空间。
在本申请一种可能的实现方式中,所述第一PDCCH配置信息包括所述第一下行消息对应的第一时间窗的配置信息,所述第二PDCCH配置信息包括所述第二下行消息对应的第二时间窗的配置信息;或者,所述第一PDCCH配置信息包括第一搜索空间配置信息,所述第二PDCCH配置信息包括第二搜索空间配置信息;或者,所述第一PDCCH配置信息包括所述第一下行消息对应的第一时间窗的配置信息和第一搜索空间配置信息,所述第二PDCCH配置信息包括所述第二下行消息对应的第二时间窗的配置信息和第二搜索空间配置信息。
在本申请一种可能的实现方式中,所述第二确定模块用于:根据所述第一搜索空间配置信息和第一时域偏移,确定所述第二搜索空间配置信息;和/或,根据所述第一时间窗的配置信息和第二时域偏移,确定所述第二时间窗的配置信息。
在本申请一种可能的实现方式中,所述第一时域偏移包括时隙偏移和/或符号偏移,所述时隙偏移用于确定在时隙上偏移的时隙数,所述符号偏移用于确定在时隙内的符号上偏移的符号数。
在本申请一种可能的实现方式中,所述时隙偏移为参考时隙偏移,所述参考时隙偏移大于或等于第一参数的参数值,所述第一参数用于指示一个周期内监听物理下行控制信道PDCCH的连续的时隙个数;或者,所述时隙偏移由所述第二IAB基站指示。
在本申请一种可能的实现方式中,所述符号偏移为参考符号偏移,所述参考符号偏移大于或等于第二参数的参数值,所述第二参数用于指示一个周期内监听物理下行控制信道PDCCH的连续的符号位置;或者,所述符号偏移由所述第二IAB基站指示。
在本申请一种可能的实现方式中,所述第二确定模块用于:根据所述第一时间窗的起始位置和窗口长度信息,以及所述第二时域偏移,确定所述第二时间窗的起始位置和窗口长度信息;或者,根据所述第一时间窗的起始位置和所述第二时域偏移,确定所述第二时间窗的起始位置。
第六方面,提供了一种信息确定装置,应用于第一接入回传一体化IAB基站中,所述装置包括:第三确定模块,用于确定第二搜索空间配置信息,和/或,确定第二时间窗的配置信息;其中,所述第二搜索空间配置信息用于指示所述第一IAB基站随机接入过程中接收第二下行消息对应的PDCCH的搜索空间,所述第二时间窗的配置信息用于指示所述第一IAB基站在对应的第二时间窗内接收所述第二下行消息。
在本申请一种可能的实现方式中,所述第三确定模块用于:确定所述第二搜索空间配置信息中的第三参数和/或第四参数,所述第三参数用于指示所述第一IAB基站随机接入过程中接收第二下行消息对应的PDCCH监听时机,所述第四参数用于指示所述第一IAB基站在相同时隙内接收所述第二下行消息的符号位置。
在本申请一种可能的实现方式中,所述第三确定模块用于:确定所述第二时间窗的起始位置和/或窗口长度信息。
在本申请一种可能的实现方式中,所述第二时间窗的起始位置位于物理随机接入信道PRACH监听时机的最后一个符号之后的至少N个符号之后的最近的控制资源集的第一个符号,所述N为大于1的整数。
在本申请一种可能的实现方式中,所述第二时间窗的起始位置位于PRACH监听时机的最后一个符号之后的至少一个符号之后的第M个的控制资源集的第一个符号,所述M为大 于1的整数。
第七方面,提供了一种信息确定装置,应用于第二接入回传一体化IAB基站中,所述装置包括:第四确定模块,用于确定第一物理下行控制信道PDCCH配置信息,所述第一PDCCH配置信息至少用于指示所述第一IAB基站随机接入过程中发送第一下行消息对应的PDCCH的搜索空间;第五确定模块,用于根据所述第一PDCCH配置信息,确定第二PDCCH配置信息,所述第二PDCCH配置信息至少用于指示所述第一IAB基站随机接入过程中接收第二下行消息对应的PDCCH的搜索空间。
在本申请一种可能的实现方式中,所述第一PDCCH配置信息包括所述第一下行消息对应的第一时间窗的配置信息,所述第二PDCCH配置信息包括所述第二下行消息对应的第二时间窗的配置信息;或者,所述第一PDCCH配置信息包括第一搜索空间配置信息,所述第二PDCCH配置信息包括第二搜索空间配置信息;或者,所述第一PDCCH配置信息包括所述第一下行消息对应的第一时间窗的配置信息和第一搜索空间配置信息,所述第二PDCCH配置信息包括所述第二下行消息对应的第二时间窗的配置信息和第二搜索空间配置信息。
在本申请一种可能的实现方式中,所述第五确定模块用于:根据所述第一搜索空间配置信息和第一时域偏移,确定所述第二搜索空间配置信息;和/或,根据所述第一时间窗的配置信息和第二时域偏移,确定所述第二时间窗的配置信息。
在本申请一种可能的实现方式中,所述第一时域偏移包括时隙偏移和/或符号偏移,所述时隙偏移用于确定在时隙上偏移的时隙数,所述符号偏移用于确定在时隙内的符号上偏移的符号数。
在本申请一种可能的实现方式中,所述时隙偏移为参考时隙偏移,所述参考时隙偏移大于或等于第一参数的参数值,所述第一参数用于指示一个周期内监听物理下行控制信道PDCCH的连续的时隙个数;或者,所述时隙偏移由所述第二IAB基站指示。
在本申请一种可能的实现方式中,所述符号偏移为参考符号偏移,所述参考符号偏移大于或等于第二参数的参数值,所述第二参数用于指示一个周期内监听物理下行控制信道PDCCH的连续的符号位置;或者,所述符号偏移由所述第二IAB基站指示。
在本申请一种可能的实现方式中,所述第五确定模块用于:根据所述第一时间窗的起始位置和窗口长度信息,以及所述第二时域偏移,确定所述第二时间窗的起始位置和窗口长度信息;或者,根据所述第一时间窗的起始位置和所述第二时域偏移,确定所述第二时间窗的起始位置。
第八方面,提供了一种信息确定装置,应用于第二接入回传一体化IAB基站中,所述装置包括:第六确定模块,用于确定第二搜索空间配置信息,和/或,确定第二时间窗的配置信息;其中,所述第二搜索空间配置信息用于指示所述第一IAB基站随机接入过程中接收第二下行消息对应的PDCCH的搜索空间,所述第二时间窗的配置信息用于指示所述第一IAB基站在对应的第二时间窗内接收所述第二下行消息。
在本申请一种可能的实现方式中,所述第六确定模块用于:确定所述第二搜索空间配置信息中的第三参数和/或第四参数,所述第三参数用于指示所述第一IAB基站随机接入过程中接收第二下行消息对应的PDCCH监听时机,所述第四参数用于指示所述第一IAB基站在相同时隙内接收所述第二下行消息的符号位置。
在本申请一种可能的实现方式中,所述第六确定模块用于:确定所述第二时间窗的起始位置和/或窗口长度信息。
在本申请一种可能的实现方式中,所述第二时间窗的起始位置位于物理随机接入信道PRACH监听时机的最后一个符号之后的至少N个符号之后的最近的控制资源集的第一个符号,所述N为大于1的整数。
在本申请一种可能的实现方式中,所述第二时间窗的起始位置位于PRACH监听时机的最后一个符号之后的至少一个符号之后的第M个的控制资源集的第一个符号,所述M为大于1的整数。
第九方面,提供了一种通信系统,包括第一接入回传一体化IAB基站和第二IAB基站,第一IAB基站包括上述第五方面和第六方面任一所述的装置,第二IAB基站包括上述第七方面和第八方面任一所述的装置。
第十方面,提供了一种第一IAB基站,所述第一IAB基站包括处理器和存储器,所述存储器存储有至少一条指令,所述至少一条指令用于被所述处理器执行以实现上述第一方面和第二方面中任一所述的方法。
第十一方面,提供了一种第二IAB基站,其特征在于,所述第二IAB基站包括处理器和存储器,所述存储器存储有至少一条指令,所述至少一条指令用于被所述处理器执行以实现上述第三方面和第四方面中任一所述的方法。
第十二方面,提供了一种计算机可读存储介质,所述计算机可读存储介质上存储有指令,其特征在于,所述指令被处理器执行时实现上述第一方面和第二方面任一所述的方法。
第十三方面,提供了一种计算机可读存储介质,所述计算机可读存储介质上存储有指令,其特征在于,所述指令被处理器执行时实现上述第三方面和第四方面任一所述的方法。
第十四方面,提供了一种包含指令的计算机程序产品,当其在计算机上运行时,使得计算机执行上述第一方面和第二方面任一所述的方法。
第十五方面,提供了一种包含指令的计算机程序产品,当其在计算机上运行时,使得计算机执行上述第三方面和第四方面任一所述的方法。
本申请实施例提供的技术方案的有益效果至少包括:确定第一PDCCH配置信息,该第一PDCCH配置至少用于指示第一IAB基站随机接入过程中发送第一下行消息对应的PDCCH的搜索空间,根据该第一PDCCH配置信息确定第二PDCCH配置信息,该第二PDCCH配置信息至少用于指示第一IAB基站随机接入过程中接收第二下行消息对应的PDCCH的搜索空间。也即是,将UE接收第一下行消息使用的PDCCH配置信息与回传链路中第一IAB基站接收第二下行消息使用的PDCCH配置信息区分开来,从而使得第一IAB基站接收第二下行消息的PDCCH的搜索空间与发送第一下行消息的PDCCH的搜索空间时域不重叠,解决了第一IAB基站接收第二下行消息和发送第一下行消息的半双工限制问题。
附图说明
为了更清楚地说明本申请实施例中的技术方案,下面将对实施例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申请的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1是本申请一个示例性实施例提供的随机接入过程的流程示意图;
图2是本申请一个示例性实施例提供的应用场景的示意图;
图3是本申请另一个示例性实施例提供的应用场景的示意图;
图4是本申请另一个示例性实施例提供的信息确定方法的流程图;
图5是本申请另一个示例性实施例提供的信息确定方法的流程图;
图6是本申请一个示例性实施例提供的PDCCH监听时机的示意图;
图7是本申请另一个示例性实施例提供的PDCCH监听时机的示意图;
图8是本申请另一个示例性实施例提供的信息确定方法的流程图;
图9是本申请一个示例性实施例提供的PDCCH监听时机的示意图;
图10是本申请另一个示例性实施例提供的PDCCH监听时机的示意图;
图11是本申请另一个示例性实施例提供的信息确定方法的流程图;
图12是本申请另一个示例性实施例提供的信息确定方法的流程图;
图13是本申请另一个示例性实施例提供的信息确定方法的流程图;
图14是本申请一个示例性实施例提供的信息确定装置的框图;
图15是本申请另一个示例性实施例提供的信息确定装置的框图;
图16是本申请另一个示例性实施例提供的信息确定装置的框图;
图17是本申请另一个示例性实施例提供的信息确定装置的框图;
图18是本申请一个示例性实施例提供的第一IAB基站的结构方框图;
图19是本申请一个示例性实施例提供的第二IAB基站的结构方框图。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚,下面将结合附图对本申请实施方式作进一步地详细描述。
首先,对本申请实施例涉及的名词进行简单介绍。
PDCCH信道:是一组物理资源粒子的集合,可以用于承载DCI(Downlink Control Information,下行控制信息),根据其作用域不同,PDCCH信道承载的控制信息包括公共控制信息和专用控制信息。
搜索空间:定义了UE盲检的开始位置和PDCCH信道的搜索方式。
控制资源集(Control Resource Set,CORESET):是一类时频资源集合,UE在对应的控制资源集进行PDCCH的检测。控制资源集由一组REG(Resource Element Group,资源粒子组)组成。
接下来以UE接入IAB基站为例,对随机接入过程进行简单介绍。请参考图1,在5G系统中,随机接入过程通常可以包括如下四步过程:
第一步:UE向IAB基站发送MSG1,该MSG1为随机接入前导序列。
作为一种示例,发送MSG1的资源信息可以通过RACH(Random Access Channel,随机接入信道)的资源配置获得。在Rel-15 NR(New Radio,新无线)技术中,定义了为UE接入配置的RACH资源配置信息,包括256种,小区可以在系统消息中将自身使用的RACH资源配置信息指示给UE。每种RACH资源配置信息包括前导码格式,周期,无线帧偏移,无线帧内的子帧编号,子帧内的起始符号,子帧内PRACH时隙的个数,PRACH时隙内PRACH时机的个数,PRACH时机持续时间。通过这些信息可以确定PRACH资源的时、频、码信息,如此,UE可以根据IAB基站指示的RACH资源配置信息,在对应的PRACH资源上发送MSG1。
第二步:IAB基站检测到UE发送的MSG1后,向UE发送RAR(Random Access Response,随机接入响应)(MSG2)以告知UE在发送下一个消息(MSG3)时可以使用的上行资源信 息。
当然,除此之外IAB基站还可以执行其它操作,比如为UE分配临时RNTI(Radio Network Temporary Identity,无线网络临时标识)等,这里不作过多介绍。
第三步:UE接收RAR,并在该RAR所指示的上行资源上向IAB基站发送MSG3。
在一些实施例中,该UE可以在该RAR对应的一个RAR时间窗口内的搜索空间中监听PDCCH,以接收该RAR。其中,该RAR时间窗口可以通过高层参数进行配置,PDCCH的搜索空间的配置信息可以通过系统消息来指示。
作为一种示例,该MSG3可以携带一个UE特定的临时标识信息。
第四步:IAB基站接收到MSG3后,向该UE发送MSG4。
作为一种示例,该MSG4包括竞争解决消息,同时包括为UE分配的上行传输资源的信息。UE接收到基站发送的MSG4时,会检测UE在MSG3发送的临时标识信息是否包含在IAB基站发送的竞争解决消息中,若包含则表明UE随机接入过程成功,否则认为随机过程失败,UE需要再次从第一步开始发起随机接入过程。
在上述随机接入过程中,将IAB基站发送给UE的消息称为下行消息,比如,该下行消息为MSG2或MSG4。
需要说明的是,上述仅是以随机接入过程包括四步过程为例进行说明。在另一实施例中,随机接入过程还可以包括两步过程,此时,本申请实施例提供的信息确定方法同样可以适用,示例性的,在两步随机接入过程中,该下行消息为RACH过程中的Msg B。
另外,下文所述的第一下行消息和第二下行消息与此同理,即在四步随机接入过程中为MSG2或MSG4,在两步随机接入过程中包括Msg B。
接下来,对本申请实施例涉及的应用场景进行简单介绍。
IAB基站是指为用户提供无线接入的基站,通常需要回传链路连接至核心网或者其他IAB基站,以便于进行数据回传,如图2所示。一般情况下,考虑到部署的复杂性和灵活性,IAB基站与其他IAB基站之间的回传链路大多数采用无线回传,比如采用微波回传。随着5G部署步伐的加快,网络容量、复杂性、时延要求逐渐提高,移动基站的数量也逐渐增加,因此,无线回传的应用范围逐渐扩大,从而使得IAB基站更容易部署在密集和复杂场景,减轻了部署有线传输网络的负担。
在一些实施例中,如果一个IAB基站可以口控制和调度另一个IAB基站,则可以将该IAB基站称为父节点,即该IAB基站为另一个IAB基站的父节点;如果一个IAB基站在另一个IAB基站的控制之下,则该IAB基站可以称为子节点,即该IAB基站为另一个IAB基站的子节点。譬如,请参考图2,IAB基站1可以称为父节点,该IAB基站1为该IAB基站2的父节点;IAB基站2可以称为父节点,该IAB基站2为IAB基站3的父节点,应当理解的是,该IAB基站2为该IAB基站1的子节点,该IAB基站3为IAB基站2的子节点。
在本申请实施例中,为了便于描述和理解,将子节点称为第一IAB基站,将父节点称为第二IAB基站,接下来以此为基础进行描述。
针对无线回传,在随机接入过程中,由于受到半双工的限制,第一IAB基站无法在向UE发送第一下行消息的同时接收第二IAB基站发送的第二下行消息,也即是,针对相同的PDCCH的搜索空间中,无法发送第一下行消息的同时还接收第二下行消息,因此,用于向UE发送第一下行消息和用于接收第二下行消息的PDCCH的搜索空间在时域上需要是分开 的。为此,本申请实施例提供了一种信息确定方法,该方法可以使得用于接收第一下行消息与用于发送第二下行消息的PDCCH的搜索空间在时域上不重叠。其具体实现请参见如下各个实施例。
此外,对本申请实施例涉及的实施环境进行简单介绍。
请参考图3,该图3是根据一示例性实施例示出的一种实施环境的示意图。该实施环境中可以包括第一IAB基站110、第二IAB基站120和UE 130。其中,UE 130可以接入为自身提供服务的IAB基站,比如UE可以接入第一IAB基站110,并且,该第一IAB基站110可以接入第二IAB基站120,以通过与该第二IAB基站120之间的无线回传链路进行数据回传,即该第一IAB基站与第二IAB基站之间形成回传链路。
需要说明的是,本申请实施例仅是以该信息确定方法应用于上述场景中为例进行说明,在另一实施例中,还可以应用于其他场景中,本申请实施例对此不作限定。
接下来将结合附图对本申请实施例提供的信息确定方法进行详细介绍。请参考图4,该图4是根据一示例性实施例示出的一种信息确定方法的流程图,该信息确定方法可以应用于上述图3所示的实施环境中,该方法可以包括如下几个实现步骤:
步骤401:第一IAB基站确定第一PDCCH配置信息,该第一PDCCH配置信息至少用于指示第一IAB基站随机接入过程中发送第一下行消息对应的PDCCH的搜索空间。
作为一种示例,该第一PDCCH配置信息可以是第二IAB基站发送的,用于第二IAB基站下的UE接收第二IAB基站发送的下行消息。或者,该第一PDCCH配置信息也可以是该第一IAB基站自身确定的,可以用于该第一IAB基站下的UE接收该第一IAB基站发送的的下行消息。也就是说,在本申请中,该第一IAB基站和该第二IAB基站为UE接收下行消息配置的PDCCH的搜索空间相同。
步骤402:第一IAB基站根据第一PDCCH配置信息,确定第二PDCCH配置信息,该第二PDCCH配置信息至少用于指示该第一IAB基站随机接入过程中接收第二下行消息对应的PDCCH的搜索空间。
对于第一IAB基站来说,由于受到半双工的限制,因此无法使用该第一PDCCH配置信息接收第二IAB基站发送的第二下行消息,因此,这里需要根据第一PDCCH配置信息,重新确定一个第二PDCCH配置信息,以使得第一IAB基站使用该第二PDCCH配置信息接收第二IAB基站发送的第二下行消息。其中,该第一PDCCH配置信息和第二PDCCH配置信息指示的PDCCH的搜索空间在时域上是分开的,即时域不重叠,从而可以解决第一IAB基站接收第二下行消息和发送第一下行消息的半双工限制问题。
作为一种示例,该第一PDCCH配置信息包括该第一下行消息对应的第一时间窗的配置信息,该第二PDCCH配置信息包括该第二下行消息对应的第二时间窗的配置信息;或者,该第一PDCCH配置信息包括第一搜索空间配置信息,该第二PDCCH配置信息包括第二搜索空间配置信息;或者,该第一PDCCH配置信息包括该第一下行消息对应的第一时间窗的配置信息和第一搜索空间配置信息,该第二PDCCH配置信息包括该第二下行消息对应的第二时间窗的配置信息和第二搜索空间配置信息。
其中,下行消息对应的时间窗是周期性存在的,包括起始位置和窗口长度。作为一种示例,当下行消息为MSG2时,该下行消息对应的时间窗为RAR时间窗,比如,当第一下行消息为MSG2时,第一下行消息对应的第一时间窗为第一RAR时间窗,同理,第二下行消 息对应的第二时间窗为第二RAR时间窗。
对于UE来说,可以在第一下行消息对应的第一时间窗内,在第一搜索空间配置信息指示的搜索空间中监听PDCCH,从而接收第一下行消息。对于该第一IAB基站而言,可以在第二下行消息对应的第二时间窗内,在第二搜索空间配置信息指示的搜索空间中监听PDCCH,从而接收第二下行消息。在该种情况下,该第一PDCCH配置信息还用于指示第一IAB基站在对应的第一时间窗内发送第一下行消息,该第二PDCCH配置信息还用于指示该第一IAB基站在对应的第二时间窗内接收第二下行消息。
在本申请实施例中,确定第一PDCCH配置信息,该第一PDCCH配置至少用于指示第一IAB基站发送第一下行消息对应的PDCCH的搜索空间,根据该第一PDCCH配置信息确定第二PDCCH配置信息,该第二PDCCH配置信息至少用于指示第一IAB基站接收第二下行消息对应的PDCCH的搜索空间。也即是,将UE接收第一下行消息使用的PDCCH配置信息与回传链路中第一IAB基站接收第二下行消息使用的PDCCH配置信息区分开来,从而使得第一IAB基站接收第二下行消息的PDCCH的搜索空间与发送第一下行消息的PDCCH的搜索空间时域不重叠,解决了第一IAB基站接收第二下行消息和发送第一下行消息的半双工限制问题。
图5是根据一示例性实施例示出的一种信息确定方法的流程图,该信息确定方法可以应用于上述图3所示的实施环境中,这里以该第一PDCCH配置信息包括第一搜索空间配置信息,第二PDCCH配置信息包括第二搜索空间配置信息为例进行说明,该方法可以包括如下几个实现步骤:
步骤501:确定第一搜索空间配置信息。
该第一搜索空间配置信息用于配置UE接收第一下行消息对应的PDCCH的搜索空间。作为一种示例,UE基于该第一搜索空间配置信息和高层参数配置的第一时间窗参数,在该第一时间窗参数指示的第一时间窗内的搜索空间中监听对应的PDCCH,以接收第一IAB基站发送的第一下行消息。作为一种示例,该高层参数可以为ra-ResponseWindow。
步骤502:根据该第一搜索空间配置信息和第一时域偏移,确定第二搜索空间配置信息。
也就是说,可以基于UE接收第一下行消息使用的第一搜索空间配置信息,增加一个时域偏移,从而生成新的用于IAB基站接收第二下行消息使用的第二搜索空间配置信息,由于该第二搜索空间配置信息与该第一搜索空间配置信息不同,即相差一个时域偏移,因此不难理解,该两者指示的搜索空间在时域上也不相同。
作为一种示例,该第一时域偏移包括时隙偏移,该时隙偏移用于确定在时隙上偏移的时隙数。也即是,可以对第一搜索空间配置信息进行时隙级的时域偏移,从而得到第二搜索空间配置信息。进一步地,还可以抽取部分PDCCH监听时机,并进行时隙级偏移。
在本申请一种可能的实现方式中,该时隙偏移为参考时隙偏移,参考时隙偏移大于或等于第一参数的参数值,该第一参数用于指示一个周期内监听物理下行控制信道PDCCH的连续的时隙个数。
也就是说,该时隙偏移可以是预定义的参考时隙偏移,并且,为了保证在时域上不重叠,需要考虑该参考时隙偏移与第一参数之间的大小关系。示例性的,该第一参数为SearchSpace信息中的duration参数,当该duration=2时,说明在一个周期内监听PDCCH时连续监听2个时隙,此时,该参考时隙偏移需要大于或等于2才能保证第二搜索空间配置信息对应的搜 索空间与第一搜索空间配置信息对应的搜索空间在时域上不重叠。
示例性的,可以在搜索空间的monitoringSlotPeriodicityAndOffset参数中引入该参考时隙偏移,从而根据该参考时隙偏移确定与第一搜索空间配置信息不同的第二搜索空间配置信息。其中,该monitoringSlotPeriodicityAndOffset参数用于指示UE接收第一下行消息对应的PDCCH的监听时机和偏移。
譬如,假设配置的第一搜索空间配置信息中的monitoringSlotPeriodicityAndOffset为sl8=0,第一参数的参数值为1,则表示UE接收第一下行消息对应的PDCCH监听时机的周期为8个时隙,偏移为0,且连续监听的时隙个数为1个,如图6所示。此时可以通过预定义的时域偏移方式增加参考时隙偏移,该参考时隙偏移可以为大于或等于1的整数,假设该参考时隙偏移等于1,则可以得到的第二搜索空间配置信息对应的监听时机如图7所示。
在本申请的另一种可能的实现方式中,该时隙偏移由第二IAB基站指示。
也就是说,该时隙偏移还可以由该第二IAB基站指示给该第一IAB基站,作为一种示例,该第二IAB基站可以通过系统消息指示该时隙偏移,进一步地,可以在系统消息中增加一个新的参数,比如该新增的参数可以定义为ra-SearchSpace-SlotOffset-IAB,从而通过该新增的ra-SearchSpace-SlotOffset-IAB参数指示第一IAB基站需要采用的时域偏移。作为一种示例,在标准中可以采用如下方式定义该新增的参数:
ra-SearchSpace-SlotOffset-IAB INTEGER(1..N-1)OPTIONAL,--Need S;
作为一种示例,该时隙偏移以第一参数为单位,也就是说,该新增的参数的参数值用于指示偏移多少个duration,所以,该时隙偏移与该第一参数的参数值之间的乘积用于指示实际的时域偏移量,即实际的时域偏移量为ra-SearchSpace-SlotOffset-IAB与duration参数的相乘的结果。
作为一种示例,该参数的取值范围可以为[1,N],该N可以为固定的正整数,或者,也可以为第一搜索空间配置信息中配置的PDCCH的监听周期包含的时隙的个数。
值得一提的是,针对PDCCH的搜索空间的配置引入一个时隙级的时域偏移参数,可以简单的获得第一IAB基站接收第二下行消息对应的PDCCH的监听时机,系统消息中增加的消息数量少,消息开销小,且对已有的通信系统影响较小。
在本申请实施例中,确定第一PDCCH配置信息,该第一PDCCH配置至少用于指示第一IAB基站发送第一下行消息对应的PDCCH的搜索空间,根据该第一PDCCH配置信息确定第二PDCCH配置信息,该第二PDCCH配置信息至少用于指示第一IAB基站接收第二下行消息对应的PDCCH的搜索空间。也即是,将UE接收第一下行消息使用的PDCCH配置信息与回传链路中第一IAB基站接收第二下行消息使用的PDCCH配置信息区分开来,从而使得第一IAB基站接收第二下行消息的PDCCH的搜索空间与发送第一下行消息的PDCCH的搜索空间时域不重叠,解决了第一IAB基站接收第二下行消息和发送第一下行消息的半双工限制问题。
图8是根据一示例性实施例示出的一种信息确定方法的流程图,该信息确定方法可以应用于上述图3所示的实施环境中,这里以该第一PDCCH配置信息包括第一搜索空间配置信息,第二PDCCH配置信息包括第二搜索空间配置信息为例进行说明,该方法可以包括如下几个实现步骤:
步骤801:确定第一搜索空间配置信息。
该第一搜索空间配置信息用于配置UE接收第一下行消息对应的PDCCH的搜索空间。作为一种示例,UE基于该第一搜索空间配置信息和高层参数配置的第一时间窗参数,在该第一时间窗参数指示的第一时间窗内的搜索空间中监听对应的PDCCH,以接收第一IAB基站发送的第一下行消息。作为一种示例,该高层参数可以为ra-ResponseWindow。
步骤802:根据第一搜索空间配置信息,确定第二搜索空间配置信息。
也就是说,可以基于UE接收第一下行消息使用的第一搜索空间配置信息,增加一个时域偏移,从而生成新的用于IAB基站接收第二下行消息使用的第二搜索空间配置信息,由于该第二搜索空间配置信息与该第一搜索空间配置信息不同,即相差一个时域偏移,因此不难理解,该两者指示的搜索空间在时域上也不相同。
作为一种示例,该第一时域偏移包括符号偏移,该符号偏移用于确定在时隙内的符号上偏移的符号数。也即是,可以对第一搜索空间配置信息进行符号级的时域偏移,从而得到第二搜索空间配置信息。进一步地,还可以抽取部分PDCCH监听时机,并进行符号级偏移。
在本申请一种可能的实现方式中,该符号偏移为参考符号偏移,该参考符号偏移大于或等于第二参数的参数值,该第二参数用于指示一个周期内监听物理下行控制信道PDCCH的连续的符号位置。
也就是说,该符号偏移可以是预定义的参考符号偏移,并且,为了保证在时域上不重叠,需要考虑该参考符号偏移与第二参数之间的大小关系。示例性的,该第二参数为ControlResourceSet信息中duration参数,当该duration=2时,说明在一个周期内监听PDCCH时连续监听2个符号,此时,该参考符号偏移需要大于或等于2才能保证第二搜索空间配置信息对应的搜索空间与第一搜索空间配置信息对应的搜索空间在时域上不重叠。
作为一种示例,通过在第一搜索空间配置信息中的monitoringSymbolsWithinSlot引入该参考符号偏移,从而根据该参考符号偏移确定与第一搜索空间配置信息不同的第二搜索空间配置信息,其中,monitoringSymbolsWithinSlot参数用于指示UE接收第一下行消息对应的时隙内监听PDCCH的第一个符号的位置。
示例性的,当配置的第一搜索空间配置信息中的monitoringSymbolsWithinSlot为“10000000000000”,第二参数duration=2时,表示PDCCH监听时机在时隙的前两个符号上,如图9所示。此时可以通过预定义的时域偏移方式增加参考符号偏移,该参考符号偏移可以为大于或等于2的整数,假设该参考符号偏移等于2,则可以得到的第二搜索空间配置信息对应的监听时机如图10所示。
在本申请的另一种可能的实现方式中,该符号偏移由第二IAB基站指示。
也就是说,该符号偏移还可以由该第二IAB基站指示给该第一IAB基站,作为一种示例,该第二IAB基站可以通过系统消息指示该符号偏移,进一步地,可以在系统消息中增加一个新的参数,比如该新增的参数可以定义为ra-SearchSpace-SlotOffset-IAB,从而通过该新增的ra-SearchSpace-SlotOffset-IAB参数指示第一IAB基站需要采用的时域偏移。作为一种示例,在标准中可以采用如下方式定义该新增的参数:
ra-SearchSpace-SlotOffset-IAB INTEGER(1..N-1)OPTIONAL,--Need S;
作为一种示例,该符号偏移以第二参数为单位,也就是说,该新增的参数的参数值用于指示偏移多少个duration,所以,该符号偏移与该第二参数的参数值之间的乘积用于指示实际的时域偏移量,即实际的时域偏移量为ra-SearchSpace-SlotOffset-IAB与duration参数的相乘的结果。
作为一种示例,该参数的取值范围可以为[1,N],该N可以为固定的正整数。
值得一提的是,针对PDCCH的搜索空间的配置引入一个符号级的时域偏移参数,可以简单的获得第一IAB基站随机接入过程中接收第二下行消息对应的PDCCH的监听时机,系统消息中增加的消息数量少,消息开销小,且对已有的通信系统影响较小。
在本申请实施例中,确定第一PDCCH配置信息,该第一PDCCH配置至少用于指示第一IAB基站发送第一下行消息对应的PDCCH的搜索空间,根据该第一PDCCH配置信息确定第二PDCCH配置信息,该第二PDCCH配置信息至少用于指示第一IAB基站接收第二下行消息对应的PDCCH的搜索空间。也即是,将UE接收第一下行消息使用的PDCCH配置信息与回传链路中第一IAB基站接收第二下行消息使用的PDCCH配置信息区分开来,从而使得第一IAB基站接收第二下行消息的PDCCH的搜索空间与发送第一下行消息的PDCCH的搜索空间时域不重叠,解决了第一IAB基站接收第二下行消息和发送第一下行消息的半双工限制问题。
需要说明的是,上述仅是以对第一搜索空间配置信息进行时隙级的时域偏移,或者进行符号级的时域偏移为例进行说明,在一些实施例中,还可以对第一搜索空间配置信息同时进行时隙级和符号级的时域偏移,即该第一时域偏移包括时隙偏移和符号偏移。也就是说,还可以即进行时隙级的时域偏移,又进行符号级的时域偏移,即可以将上述实施例5与实施例8结合实现,本申请实施例对此不做限定。
图11是根据一示例性实施例示出的一种信息确定方法的流程图,该信息确定方法可以应用于上述图3所示的实施环境中,这里以该第一PDCCH配置信息包括该第一下行消息对应的第一时间窗的配置信息,该第二PDCCH配置信息包括该第二下行消息对应的第二时间窗的配置信息为例进行说明,该方法可以包括如下几个实现步骤:
步骤1101:确定第一时间窗的配置信息。
该第一时间窗的配置信息可以通过高层参数进行配置,比如,该高层参数可以为ra-ResponseWindow。UE根据该第一时间窗的配置信息和系统消息中指示的第一搜索空间配置,在该第一时间窗内的搜索空间中监听PDCCH,以接收第一下行消息。
步骤1102:根据该第一时间窗的配置信息和第二时域偏移,确定第二时间窗的配置信息。
对于第一IAB基站来说,由于受到半双工的限制,因此不可以在该第一时间窗内监听PDCCH,所以这里可以根据该第一时间窗的配置信息,增加一个时域偏移,从而生成新的第二时间窗的配置信息,使得该第一IAB基站在该第二时间窗内监听PDCCH,即在不同的时间窗内监听PDCCH,以保证在时域上不重叠。作为一种示例,此时使用的搜索空间配置信息可以通过系统消息获得,即可以与UE使用的搜索空间配置信息相同,由于监听窗口不同,因此可以保证搜索空间的时域不重叠。
在本申请一种可能的实现方式中,根据该第一时间窗的配置信息和第二时域偏移,确定第二时间窗的配置信息的实现可以包括:根据该第一时间窗的起始位置和窗口长度信息,以及该第二时域偏移,确定该第二时间窗的起始位置和窗口长度信息。
也就是说,时间窗的配置信息包括起始位置和窗口长度信息,作为一种示例,可以基于该第二时域偏移,对该第一时间窗的起始位置进行时域偏移,使得第二时间窗的起始位置与该第一时间窗的起始位置不同,从而保证时域不重叠。另外,作为一种示例,考虑到第一时间窗和第二时间窗的总长度可能要小于某个时间窗长度阈值,因此,在对第一时间窗的起始 位置进行时域偏移后,该第二时间窗的窗口长度可能需要缩短,所以还可以根据该第二时域偏移确定该第二时间窗的窗口长度信息。
其中,该时间窗长度阈值可以根据实际需求预先进行设置,譬如,该时间窗长度阈值可以为10ms等。
在本申请另一种可能的实现方式中,根据该第一时间窗的配置信息和第二时域偏移,确定第二时间窗的配置信息的实现可以包括:根据所述第一时间窗的起始位置和所述第二时域偏移,确定所述第二时间窗的起始位置。
也就是说,可以基于该第二时域偏移,对该第一时间窗的起始位置进行时域偏移,使得第二时间窗的起始位置与该第一时间窗的起始位置不同,从而保证时域不重叠。作为一种示例,该第二时间窗的窗口长度与该第一时间窗的窗口长度可以相同,即可以将该第一时间窗的窗口长度信息确定为第二时间窗的窗口长度信息。
作为一种示例,上述第二时域偏移可以是预定义的,或者,该第二时域偏移也可以是由第二IAB基站指示的,示例的,该第二时域偏移可以由该第二IAB基站通过系统消息指示给该第一IAB基站,本申请实施例对此不作限定。
需要说明的是,这里仅是以对第一时间窗的起始位置进行时域偏移为例进行说明,在另一实施例中,该实现方式还可以与上述各个实施例进行结合,比如,还可以在对第一时间窗的起始位置进行时域偏移的同时,对第一搜索空间配置信息进行时隙级和/或符号级的时域偏移,本申请实施例对此不作限定。
图12是根据一示例性实施例示出的一种信息确定方法的流程图,该信息确定方法可以应用于上述图3所示的实施环境中,该方法可以包括如下几个实现步骤:
步骤1201:确定第二搜索空间配置信息,该第二搜索空间配置信息用于该第一IAB基站随机接入过程中接收第二下行消息对应的PDCCH的搜索空间。
也就是说,可以重新定义一套搜索空间配置信息(即第二搜索空间配置信息),以通过该第二搜索空间配置指示第一IAB基站接收第二下行消息对应的PDCCH的搜索空间。作为一种示例,该第二搜索空间配置信息指示的PDCCH的搜索空间与第一搜索空间配置信息指示的PDCCH的搜索空间在时域上不重叠,即PDCCH的监听时机不同。
作为一种示例,确定第二搜索空间配置信息的实现可以包括:确定第二搜索空间配置信息中的第三参数和/或第四参数,该第三参数用于指示第一IAB基站随机接入过程中接收第二下行消息对应的PDCCH监听时机,该第四参数用于指示第一IAB基站在相同时隙内接收第二下行消息的符号位置。
示例性的,该第三参数可以为monitoringSlotPeriodicityAndOffset参数,即可以通过该参数来保证第二IAB基站发送第二下行消息对应的PDCCH的搜索空间和第一IAB基站发送第一下行消息对应的PDCCH的搜索空间具有不同的PDCCH监听时机,即使得第一IAB基站和第二IAB基站的Type1-PDCCH common search space具有不同的PDCCH监听时机。
作为一种示例,该第四参数可以为monitoringSymbolsWithinSlot参数,即可以通过该参数来保证第一IAB基站和第二IAB基站的Type1-PDCCH common search space在相同的时隙内的不同符号上监听PDCCH。
值得一提的是,本申请实施例可以为第一IAB基站接收第二下行消息和发送第一下行消息分别配置对应的搜索空间配置信息,可以解决第一IAB基站接收第二下行消息和发送第一 下行消息的半双工限制问题,简化了标准的修改。
图13是根据一示例性实施例示出的一种信息确定方法的流程图,该信息确定方法可以应用于上述图3所示的实施环境中,该方法可以包括如下几个实现步骤:
步骤1301:确定第二时间窗的配置信息,该第二时间窗的配置信息用于指示第一IAB基站在对应的第二时间窗内接收第二下行消息。
作为一种示例,确定第二时间窗的配置信息的实现可以包括:确定第二时间窗的起始位置和/或窗口长度信息。
也就是说,可以重新定义一个第二时间窗,示例性的,该第二时间窗与第一时间窗的起始位置可以不同。在实施中,可以采用如下两种可能的实现方式来确定该第二时间窗的起始位置:
第一种实现方式:该第二时间窗的起始位置位于PRACH监听时机的最后一个符号之后的至少N个符号之后的最近的控制资源集的第一个符号,该N为大于1的整数。
在PRACH监听时机结束后,相隔至少两个符号后,确定最近的控制资源集的第一个符号,将该第一符号确定为该第二时间窗的起始位置。
需要说明的是,该PRACH监听时机的最后一个符号与最近的控制资源集的第一个符号之间相隔的符号数与确定第一时间窗的起始位置时PRACH监听时机的最后一个符号与最近的控制资源集的第一个符号之间相隔的符号数不同,从而保证第一时间窗与第二时间窗的起始位置不相同。
另外,由于下行消息对应的时间窗是周期性出现的,且每个周期内均存在控制资源集,因此,这里需要确定最近的控制资源集,从而将确定的控制资源集的第一个符号确定为第二时间窗的起始位置。
第二种实现方式:该第二时间窗的起始位置位于PRACH监听时机的最后一个符号之后的至少1个符号之后的第M个的控制资源集的第一个符号,该M为大于1的整数。
也就是说,这里确定的不是最近的控制资源集的第一个符号,而是相隔至少一个控制资源集,将第M个控制资源集的第一个符号确定为第二时间窗的起始位置,从而使得第一IAB基站接收第二下行消息和发送第一下行消息对应的PDCCH的监控时机不同。
其中,上述控制资源集由是由ra-SearchSpace配置信息配置。
进一步地,还可以设置该第二时间窗的窗口长度信息,作为一种示例,该第二时间窗的长度信息的配置可以采用如下形式实现:
ra-ResponseWindow ENUMERATED{sl1,sl2,sl4,sl8,sl10,sl20,sl40,sl80},
该方法不依赖于第一时间窗的确定方法和相关配置参数,而是为第一IAB基站定义新的确定第二时间窗的起始位置和相关配置参数,如此可以简化对标准的修改。
需要说明的是,上述仅是以重新定义搜索空间配置信息或时间窗为例进行说明,在另一实施例中,还可以既重新定义搜索空间配置信息,又重新定义下行消息时间窗,即上述图12和图13实施例可以结合,本申请实施例对此不作限定。
需要说明的是,对于第二IAB基站来说也需要确定第二搜索空间配置信息,以便于确定在哪个PDCCH的搜索空间上发送第二下行消息,该第二IAB基站确定第二搜索空间配置信息的实现方式与第一IAB基站确定第二搜索空间配置信息的方式相互对应且相同,这里不再重复介绍。
图14是根据一示例性实施例示出的一种信息确定装置,该装置应用于第一IAB基站中,该装置可以包括:
第一确定模块1410,用于确定第一物理下行控制信道PDCCH配置信息,所述第一PDCCH配置信息至少用于指示所述第一IAB基站随机接入过程中发送第一下行消息对应的PDCCH的搜索空间;第二确定模块1420,用于根据所述第一PDCCH配置信息,确定第二PDCCH配置信息,所述第二PDCCH配置信息至少用于指示所述第一IAB基站接收第二下行消息对应的PDCCH的搜索空间。
在本申请一种可能的实现方式中,所述第一PDCCH配置信息包括所述第一下行消息对应的第一时间窗的配置信息,所述第二PDCCH配置信息包括所述第二下行消息对应的第二时间窗的配置信息;或者,所述第一PDCCH配置信息包括第一搜索空间配置信息,所述第二PDCCH配置信息包括第二搜索空间配置信息;或者,所述第一PDCCH配置信息包括所述第一下行消息对应的第一时间窗的配置信息和第一搜索空间配置信息,所述第二PDCCH配置信息包括所述第二下行消息对应的第二时间窗的配置信息和第二搜索空间配置信息。
在本申请一种可能的实现方式中,所述第二确定模块1420用于:根据所述第一搜索空间配置信息和第一时域偏移,确定所述第二搜索空间配置信息;和/或,根据所述第一时间窗的配置信息和第二时域偏移,确定所述第二时间窗的配置信息。
在本申请一种可能的实现方式中,所述第一时域偏移包括时隙偏移和/或符号偏移,所述时隙偏移用于确定在时隙上偏移的时隙数,所述符号偏移用于确定在时隙内的符号上偏移的符号数。
在本申请一种可能的实现方式中,所述时隙偏移为参考时隙偏移,所述参考时隙偏移大于或等于第一参数的参数值,所述第一参数用于指示一个周期内监听物理下行控制信道PDCCH的连续的时隙个数;或者,所述时隙偏移由所述第二IAB基站指示。
在本申请一种可能的实现方式中,所述符号偏移为参考符号偏移,所述参考符号偏移大于或等于第二参数的参数值,所述第二参数用于指示一个周期内监听物理下行控制信道PDCCH的连续的符号位置;或者,所述符号偏移由所述第二IAB基站指示。
在本申请一种可能的实现方式中,所述第二确定模块1420用于:根据所述第一时间窗的起始位置和窗口长度信息,以及所述第二时域偏移,确定所述第二时间窗的起始位置和窗口长度信息。
请参考图15,该图15是根据一示例性实施例示出的一种信息确定装置,应用于第一IAB基站中,该装置可以包括:
第三确定模块1510,用于确定第二搜索空间配置信息,和/或,确定第二时间窗的配置信息;其中,所述第二搜索空间配置信息用于指示所述第一IAB基站随机接入过程中接收第二下行消息对应的PDCCH的搜索空间,所述第二时间窗的配置信息用于指示所述第一IAB基站在对应的第二时间窗内接收所述第二下行消息。
在本申请一种可能的实现方式中,所述第三确定模块1510用于:确定所述第二搜索空间配置信息中的第三参数和/或第四参数,所述第三参数用于指示所述第一IAB基站随机接入过程中接收第二下行消息对应的PDCCH监听时机,所述第四参数用于指示所述第一IAB基站在相同时隙内接收所述第二下行消息的符号位置。
在本申请一种可能的实现方式中,所述第三确定模块1510用于:确定所述第二时间窗的起始位置和/或窗口长度信息。
在本申请一种可能的实现方式中,所述第二时间窗的起始位置位于物理随机接入信道PRACH监听时机的最后一个符号之后的至少N个符号之后的最近的控制资源集的第一个符号,所述N为大于1的整数。
在本申请一种可能的实现方式中,所述第二时间窗的起始位置位于PRACH监听时机的最后一个符号之后的至少一个符号之后的第M个的控制资源集的第一个符号,所述M为大于1的整数。
请参考图16,该图16是根据一示例性实施例示出的一种信息确定装置,应用于第二IAB基站中,所述装置包括:
第四确定模块1610,用于确定第一物理下行控制信道PDCCH配置信息,所述第一PDCCH配置信息至少用于指示所述第一IAB基站随机接入过程中发送第一下行消息对应的PDCCH的搜索空间;第五确定模块1620,用于根据所述第一PDCCH配置信息,确定第二PDCCH配置信息,所述第二PDCCH配置信息至少用于指示所述第一IAB基站接收第二下行消息对应的PDCCH的搜索空间。
在本申请一种可能的实现方式中,所述第一PDCCH配置信息包括所述第一下行消息对应的第一时间窗的配置信息,所述第二PDCCH配置信息包括所述第二下行消息对应的第二时间窗的配置信息;或者,所述第一PDCCH配置信息包括第一搜索空间配置信息,所述第二PDCCH配置信息包括第二搜索空间配置信息;或者,所述第一PDCCH配置信息包括所述第一下行消息对应的第一时间窗的配置信息和第一搜索空间配置信息,所述第二PDCCH配置信息包括所述第二下行消息对应的第二时间窗的配置信息和第二搜索空间配置信息。
在本申请一种可能的实现方式中,所述第五确定模块1620用于:根据所述第一搜索空间配置信息和第一时域偏移,确定所述第二搜索空间配置信息;和/或,根据所述第一时间窗的配置信息和第二时域偏移,确定所述第二时间窗的配置信息。
在本申请一种可能的实现方式中,所述第一时域偏移包括时隙偏移和/或符号偏移,所述时隙偏移用于确定在时隙上偏移的时隙数,所述符号偏移用于确定在时隙内的符号上偏移的符号数。
在本申请一种可能的实现方式中,所述时隙偏移为参考时隙偏移,所述参考时隙偏移大于或等于第一参数的参数值,所述第一参数用于指示一个周期内监听物理下行控制信道PDCCH的连续的时隙个数;或者,所述时隙偏移由所述第二IAB基站指示。
在本申请一种可能的实现方式中,所述符号偏移为参考符号偏移,所述参考符号偏移大于或等于第二参数的参数值,所述第二参数用于指示一个周期内监听物理下行控制信道PDCCH的连续的符号位置;或者,所述符号偏移由所述第二IAB基站指示。
在本申请一种可能的实现方式中,所述第五确定模块1620用于:根据所述第一时间窗的起始位置和窗口长度信息,以及所述第二时域偏移,确定所述第二时间窗的起始位置和窗口长度信息。
请参考图17,该图17是根据一示例性实施例示出的一种信息确定装置,应用于第二IAB基站中,所述装置包括:
第六确定模块1710,用于确定第二搜索空间配置信息,和/或,确定第二时间窗的配置信息;其中,所述第二搜索空间配置信息用于指示所述第一IAB基站随机接入过程中接收第二下行消息对应的PDCCH的搜索空间,所述第二时间窗的配置信息用于指示所述第一IAB基站在对应的第二时间窗内接收所述第二下行消息。
在本申请一种可能的实现方式中,所述第六确定模块1710用于:确定所述第二搜索空间配置信息中的第三参数和/或第四参数,所述第三参数用于指示所述第一IAB基站接收第二下行消息的PDCCH监听时机,所述第四参数用于指示所述第一IAB基站在相同时隙内接收所述第二下行消息的符号位置。
在本申请一种可能的实现方式中,所述第六确定模块1710用于:确定所述第二时间窗的起始位置和/或窗口长度信息。
在本申请一种可能的实现方式中,所述第二时间窗的起始位置位于物理随机接入信道PRACH监听时机的最后一个符号之后的至少N个符号之后的最近的控制资源集的第一个符号,所述N为大于1的整数。
在本申请一种可能的实现方式中,所述第二时间窗的起始位置位于PRACH监听时机的最后一个符号之后的至少一个符号之后的第M个的控制资源集的第一个符号,所述M为大于1的整数。
请参考图18,其示出了本申请一个示例性实施例提供的第一IAB基站的结构示意图,该第一IAB基站包括:处理器1801、接收器1802、发射器1803、存储器1804和总线1805。
处理器1801包括一个或者一个以上处理核心,处理器1801通过运行软件程序以及模块,从而执行各种功能应用以及信息处理。
接收器1802和发射器1803可以实现为一个通信组件,该通信组件可以是一块通信芯片。
存储器1804通过总线1805与处理器1801相连。
存储器1804可用于存储至少一个指令,处理器1801用于执行该至少一个指令,以实现上述各个方法实施例中的第一IAB基站执行的各个步骤。
此外,存储器1804可以由任何类型的易失性或非易失性存储设备或者它们的组合实现,易失性或非易失性存储设备包括但不限于:磁盘或光盘,电可擦除可编程只读存储器(EEPROM),可擦除可编程只读存储器(EPROM),静态随时存取存储器(SRAM),只读存储器(ROM),磁存储器,快闪存储器,可编程只读存储器(PROM)。
本申请提供了一种计算机可读存储介质,所述存储介质中存储有至少一条指令,所述至少一条指令由所述处理器加载并执行以实现上述各个方法实施例提供的信息确定方法。
本申请还提供了一种计算机程序产品,当计算机程序产品在计算机上运行时,使得计算机执行上述各个方法实施例提供的信息确定方法。
请参考图19,其示出了本申请一个示例性实施例提供的第二IAB基站的结构示意图,该第二IAB基站包括:处理器1901、接收器1902、发射器1903、存储器1904和总线1905。
处理器1901包括一个或者一个以上处理核心,处理器1901通过运行软件程序以及模块,从而执行各种功能应用以及信息处理。
接收器1902和发射器1903可以实现为一个通信组件,该通信组件可以是一块通信芯片。
存储器1904通过总线1905与处理器1901相连。
存储器1904可用于存储至少一个指令,处理器1901用于执行该至少一个指令,以实现上述各个方法实施例中的第二IAB基站执行的各个步骤。
此外,存储器1904可以由任何类型的易失性或非易失性存储设备或者它们的组合实现,易失性或非易失性存储设备包括但不限于:磁盘或光盘,电可擦除可编程只读存储器(EEPROM),可擦除可编程只读存储器(EPROM),静态随时存取存储器(SRAM),只读存储器(ROM),磁存储器,快闪存储器,可编程只读存储器(PROM)。
本申请提供了一种计算机可读存储介质,所述存储介质中存储有至少一条指令,所述至少一条指令由所述处理器加载并执行以实现上述各个方法实施例提供的信息确定方法。
本申请还提供了一种计算机程序产品,当计算机程序产品在计算机上运行时,使得计算机执行上述各个方法实施例提供的信息确定方法。
本领域技术人员应该可以意识到,在上述一个或多个示例中,本申请实施例所描述的功能可以用硬件、软件、固件或它们的任意组合来实现。当使用软件实现时,可以将这些功能存储在计算机可读介质中或者作为计算机可读介质上的一个或多个指令或代码进行传输。计算机可读介质包括计算机存储介质和通信介质,其中通信介质包括便于从一个地方向另一个地方传送计算机程序的任何介质。存储介质可以是通用或专用计算机能够存取的任何可用介质。
以上所述仅为本申请的较佳实施例,并不用以限制本申请,凡在本申请的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本申请的保护范围之内。

Claims (52)

  1. 一种信息确定方法,其特征在于,应用于第一接入回传一体化IAB基站中,所述方法包括:
    确定第一物理下行控制信道PDCCH配置信息,所述第一PDCCH配置信息至少用于指示所述第一IAB基站随机接入过程中发送第一下行消息对应的PDCCH的搜索空间;
    根据所述第一PDCCH配置信息,确定第二PDCCH配置信息,所述第二PDCCH配置信息至少用于指示所述第一IAB基站随机接入过程中接收第二下行消息对应的PDCCH的搜索空间。
  2. 如权利要求1所述的方法,其特征在于,
    所述第一PDCCH配置信息包括所述第一下行消息对应的第一时间窗的配置信息,所述第二PDCCH配置信息包括所述第二下行消息对应的第二时间窗的配置信息;或者,
    所述第一PDCCH配置信息包括第一搜索空间配置信息,所述第二PDCCH配置信息包括第二搜索空间配置信息;或者,
    所述第一PDCCH配置信息包括所述第一下行消息对应的第一时间窗的配置信息和第一搜索空间配置信息,所述第二PDCCH配置信息包括所述第二下行消息对应的第二时间窗的配置信息和第二搜索空间配置信息。
  3. 如权利要求2所述的方法,其特征在于,所述根据所述第一PDCCH配置信息,确定第二PDCCH配置信息,包括:
    根据所述第一搜索空间配置信息和第一时域偏移,确定所述第二搜索空间配置信息;
    和/或,
    根据所述第一时间窗的配置信息和第二时域偏移,确定所述第二时间窗的配置信息。
  4. 如权利要求3所述的方法,其特征在于,所述第一时域偏移包括时隙偏移和/或符号偏移,所述时隙偏移用于确定在时隙上偏移的时隙数,所述符号偏移用于确定在时隙内的符号上偏移的符号数。
  5. 如权利要求3或4所述的方法,其特征在于,
    所述时隙偏移为参考时隙偏移,所述参考时隙偏移大于或等于第一参数的参数值,所述第一参数用于指示一个周期内监听物理下行控制信道PDCCH的连续的时隙个数;或者,
    所述时隙偏移由所述第二IAB基站指示。
  6. 如权利要求3或4所述的方法,其特征在于,
    所述符号偏移为参考符号偏移,所述参考符号偏移大于或等于第二参数的参数值,所述第二参数用于指示一个周期内监听物理下行控制信道PDCCH的连续的符号位置;或者,
    所述符号偏移由所述第二IAB基站指示。
  7. 如权利要求3所述的方法,其特征在于,所述根据所述第一时间窗的配置信息和第二时域偏移,确定所述第二时间窗的配置信息,包括:
    根据所述第一时间窗的起始位置和窗口长度信息,以及所述第二时域偏移,确定所述第二时间窗的起始位置和窗口长度信息;或者,
    根据所述第一时间窗的起始位置和所述第二时域偏移,确定所述第二时间窗的起始位置。
  8. 一种信息确定方法,其特征在于,应用于第一接入回传一体化IAB基站中,所述方 法包括:
    确定第二搜索空间配置信息,和/或,确定第二时间窗的配置信息;
    其中,所述第二搜索空间配置信息用于指示所述第一IAB基站随机接入过程中接收第二下行消息对应的PDCCH的搜索空间,所述第二时间窗的配置信息用于指示所述第一IAB基站在对应的第二时间窗内接收所述第二下行消息。
  9. 如权利要求8所述的方法,其特征在于,所述确定第二搜索空间配置信息,包括:
    确定所述第二搜索空间配置信息中的第三参数和/或第四参数,所述第三参数用于指示所述第一IAB基站随机接入过程中接收第二下行消息对应的PDCCH监听时机,所述第四参数用于指示所述第一IAB基站在相同时隙内接收所述第二下行消息的符号位置。
  10. 如权利要求8所述的方法,其特征在于,所述确定第二时间窗的配置信息,包括:
    确定所述第二时间窗的起始位置和/或窗口长度信息。
  11. 如权利要求10所述的方法,其特征在于,所述第二时间窗的起始位置位于物理随机接入信道PRACH监听时机的最后一个符号之后的至少N个符号之后的最近的控制资源集的第一个符号,所述N为大于1的整数。
  12. 如权利要求10所述的方法,其特征在于,所述第二时间窗的起始位置位于PRACH监听时机的最后一个符号之后的至少一个符号之后的第M个的控制资源集的第一个符号,所述M为大于1的整数。
  13. 一种信息确定方法,其特征在于,应用于第二接入回传一体化IAB基站中,所述方法包括:
    确定第一物理下行控制信道PDCCH配置信息,所述第一PDCCH配置信息至少用于指示所述第一IAB基站随机接入过程中发送第一下行消息对应的PDCCH的搜索空间;
    根据所述第一PDCCH配置信息,确定第二PDCCH配置信息,所述第二PDCCH配置信息至少用于指示所述第一IAB基站随机接入过程中接收第二下行消息对应的PDCCH的搜索空间。
  14. 如权利要求13所述的方法,其特征在于,
    所述第一PDCCH配置信息包括所述第一下行消息对应的第一时间窗的配置信息,所述第二PDCCH配置信息包括所述第二下行消息对应的第二时间窗的配置信息;或者,
    所述第一PDCCH配置信息包括第一搜索空间配置信息,所述第二PDCCH配置信息包括第二搜索空间配置信息;或者,
    所述第一PDCCH配置信息包括所述第一下行消息对应的第一时间窗的配置信息和第一搜索空间配置信息,所述第二PDCCH配置信息包括所述第二下行消息对应的第二时间窗的配置信息和第二搜索空间配置信息。
  15. 如权利要求14所述的方法,其特征在于,所述根据所述第一PDCCH配置信息,确定第二PDCCH配置信息,包括:
    根据所述第一搜索空间配置信息和第一时域偏移,确定所述第二搜索空间配置信息;
    和/或,
    根据所述第一时间窗的配置信息和第二时域偏移,确定所述第二时间窗的配置信息。
  16. 如权利要求15所述的方法,其特征在于,所述第一时域偏移包括时隙偏移和/或符号偏移,所述时隙偏移用于确定在时隙上偏移的时隙数,所述符号偏移用于确定在时隙内的 符号上偏移的符号数。
  17. 如权利要求15或16所述的方法,其特征在于,
    所述时隙偏移为参考时隙偏移,所述参考时隙偏移大于或等于第一参数的参数值,所述第一参数用于指示一个周期内监听物理下行控制信道PDCCH的连续的时隙个数;或者,
    所述时隙偏移由所述第二IAB基站指示。
  18. 如权利要求15或16所述的方法,其特征在于,
    所述符号偏移为参考符号偏移,所述参考符号偏移大于或等于第二参数的参数值,所述第二参数用于指示一个周期内监听物理下行控制信道PDCCH的连续的符号位置;或者,
    所述符号偏移由所述第二IAB基站指示。
  19. 如权利要求15所述的方法,其特征在于,所述根据所述第一时间窗的配置信息和第二时域偏移,确定所述第二时间窗的配置信息,包括:
    根据所述第一时间窗的起始位置和窗口长度信息,以及所述第二时域偏移,确定所述第二时间窗的起始位置和窗口长度信息;或者,
    根据所述第一时间窗的起始位置和所述第二时域偏移,确定所述第二时间窗的起始位置。
  20. 一种信息确定方法,其特征在于,应用于第二接入回传一体化IAB基站中,所述方法包括:
    确定第二搜索空间配置信息,和/或,确定第二时间窗的配置信息;
    其中,所述第二搜索空间配置信息用于指示所述第一IAB基站随机接入过程中接收第二下行消息对应的PDCCH的搜索空间,所述第二时间窗的配置信息用于指示所述第一IAB基站在对应的第二时间窗内接收所述第二下行消息。
  21. 如权利要求20所述的方法,其特征在于,所述确定第二搜索空间配置信息,包括:
    确定所述第二搜索空间配置信息中的第三参数和/或第四参数,所述第三参数用于指示所述第一IAB基站随机接入过程中接收第二下行消息对应的PDCCH监听时机,所述第四参数用于指示所述第一IAB基站在相同时隙内接收所述第二下行消息的符号位置。
  22. 如权利要求20所述的方法,其特征在于,所述确定第二时间窗的配置信息,包括:
    确定所述第二时间窗的起始位置和/或窗口长度信息。
  23. 如权利要求22所述的方法,其特征在于,所述第二时间窗的起始位置位于物理随机接入信道PRACH监听时机的最后一个符号之后的至少N个符号之后的最近的控制资源集的第一个符号,所述N为大于1的整数。
  24. 如权利要求22所述的方法,其特征在于,所述第二时间窗的起始位置位于PRACH监听时机的最后一个符号之后的至少一个符号之后的第M个的控制资源集的第一个符号,所述M为大于1的整数。
  25. 一种信息确定装置,其特征在于,应用于第一接入回传一体化IAB基站中,所述装置包括:
    第一确定模块,用于确定第一物理下行控制信道PDCCH配置信息,所述第一PDCCH配置信息至少用于指示所述第一IAB基站随机接入过程中发送第一下行消息对应的PDCCH的搜索空间;
    第二确定模块,用于根据所述第一PDCCH配置信息,确定第二PDCCH配置信息,所述第二PDCCH配置信息至少用于指示所述第一IAB基站随机接入过程中接收第二下行消息 对应的PDCCH的搜索空间。
  26. 如权利要求25所述的装置,其特征在于,
    所述第一PDCCH配置信息包括所述第一下行消息对应的第一时间窗的配置信息,所述第二PDCCH配置信息包括所述第二下行消息对应的第二时间窗的配置信息;或者,
    所述第一PDCCH配置信息包括第一搜索空间配置信息,所述第二PDCCH配置信息包括第二搜索空间配置信息;或者,
    所述第一PDCCH配置信息包括所述第一下行消息对应的第一时间窗的配置信息和第一搜索空间配置信息,所述第二PDCCH配置信息包括所述第二下行消息对应的第二时间窗的配置信息和第二搜索空间配置信息。
  27. 如权利要求26所述的装置,其特征在于,所述第二确定模块用于:
    根据所述第一搜索空间配置信息和第一时域偏移,确定所述第二搜索空间配置信息;
    和/或,
    根据所述第一时间窗的配置信息和第二时域偏移,确定所述第二时间窗的配置信息。
  28. 如权利要求27所述的装置,其特征在于,所述第一时域偏移包括时隙偏移和/或符号偏移,所述时隙偏移用于确定在时隙上偏移的时隙数,所述符号偏移用于确定在时隙内的符号上偏移的符号数。
  29. 如权利要求27或28所述的装置,其特征在于,
    所述时隙偏移为参考时隙偏移,所述参考时隙偏移大于或等于第一参数的参数值,所述第一参数用于指示一个周期内监听物理下行控制信道PDCCH的连续的时隙个数;或者,
    所述时隙偏移由所述第二IAB基站指示。
  30. 如权利要求27或28所述的装置,其特征在于,
    所述符号偏移为参考符号偏移,所述参考符号偏移大于或等于第二参数的参数值,所述第二参数用于指示一个周期内监听物理下行控制信道PDCCH的连续的符号位置;或者,
    所述符号偏移由所述第二IAB基站指示。
  31. 如权利要求27所述的装置,其特征在于,所述第二确定模块用于:
    根据所述第一时间窗的起始位置和窗口长度信息,以及所述第二时域偏移,确定所述第二时间窗的起始位置和窗口长度信息;或者,
    根据所述第一时间窗的起始位置和所述第二时域偏移,确定所述第二时间窗的起始位置。
  32. 一种信息确定装置,其特征在于,应用于第一接入回传一体化IAB基站中,所述装置包括:
    第三确定模块,用于确定第二搜索空间配置信息,和/或,确定第二时间窗的配置信息;
    其中,所述第二搜索空间配置信息用于指示所述第一IAB基站随机接入过程中接收第二下行消息对应的PDCCH的搜索空间,所述第二时间窗的配置信息用于指示所述第一IAB基站在对应的第二时间窗内接收所述第二下行消息。
  33. 如权利要求32所述的装置,其特征在于,所述第三确定模块用于:
    确定所述第二搜索空间配置信息中的第三参数和/或第四参数,所述第三参数用于指示所述第一IAB基站随机接入过程中接收第二下行消息对应的PDCCH监听时机,所述第四参数用于指示所述第一IAB基站在相同时隙内接收所述第二下行消息的符号位置。
  34. 如权利要求32所述的装置,其特征在于,所述第三确定模块用于:
    确定所述第二时间窗的起始位置和/或窗口长度信息。
  35. 如权利要求34所述的装置,其特征在于,所述第二时间窗的起始位置位于物理随机接入信道PRACH监听时机的最后一个符号之后的至少N个符号之后的最近的控制资源集的第一个符号,所述N为大于1的整数。
  36. 如权利要求34所述的装置,其特征在于,所述第二时间窗的起始位置位于PRACH监听时机的最后一个符号之后的至少一个符号之后的第M个的控制资源集的第一个符号,所述M为大于1的整数。
  37. 一种信息确定装置,其特征在于,应用于第二接入回传一体化IAB基站中,所述装置包括:
    第四确定模块,用于确定第一物理下行控制信道PDCCH配置信息,所述第一PDCCH配置信息至少用于指示所述第一IAB基站随机接入过程中发送第一下行消息对应的PDCCH的搜索空间;
    第五确定模块,用于根据所述第一PDCCH配置信息,确定第二PDCCH配置信息,所述第二PDCCH配置信息至少用于指示所述第一IAB基站随机接入过程中接收第二下行消息对应的PDCCH的搜索空间。
  38. 如权利要求37所述的装置,其特征在于,
    所述第一PDCCH配置信息包括所述第一下行消息对应的第一时间窗的配置信息,所述第二PDCCH配置信息包括所述第二下行消息对应的第二时间窗的配置信息;或者,
    所述第一PDCCH配置信息包括第一搜索空间配置信息,所述第二PDCCH配置信息包括第二搜索空间配置信息;或者,
    所述第一PDCCH配置信息包括所述第一下行消息对应的第一时间窗的配置信息和第一搜索空间配置信息,所述第二PDCCH配置信息包括所述第二下行消息对应的第二时间窗的配置信息和第二搜索空间配置信息。
  39. 如权利要求38所述的装置,其特征在于,所述第五确定模块用于:
    根据所述第一搜索空间配置信息和第一时域偏移,确定所述第二搜索空间配置信息;
    和/或,
    根据所述第一时间窗的配置信息和第二时域偏移,确定所述第二时间窗的配置信息。
  40. 如权利要求39所述的装置,其特征在于,所述第一时域偏移包括时隙偏移和/或符号偏移,所述时隙偏移用于确定在时隙上偏移的时隙数,所述符号偏移用于确定在时隙内的符号上偏移的符号数。
  41. 如权利要求39或40所述的装置,其特征在于,
    所述时隙偏移为参考时隙偏移,所述参考时隙偏移大于或等于第一参数的参数值,所述第一参数用于指示一个周期内监听物理下行控制信道PDCCH的连续的时隙个数;或者,
    所述时隙偏移由所述第二IAB基站指示。
  42. 如权利要求39或40所述的装置,其特征在于,
    所述符号偏移为参考符号偏移,所述参考符号偏移大于或等于第二参数的参数值,所述第二参数用于指示一个周期内监听物理下行控制信道PDCCH的连续的符号位置;或者,
    所述符号偏移由所述第二IAB基站指示。
  43. 如权利要求39所述的装置,其特征在于,所述第五确定模块用于:
    根据所述第一时间窗的起始位置和窗口长度信息,以及所述第二时域偏移,确定所述第二时间窗的起始位置和窗口长度信息;或者,
    根据所述第一时间窗的起始位置和所述第二时域偏移,确定所述第二时间窗的起始位置。
  44. 一种信息确定装置,其特征在于,应用于第二接入回传一体化IAB基站中,所述装置包括:
    第六确定模块,用于确定第二搜索空间配置信息,和/或,确定第二时间窗的配置信息;
    其中,所述第二搜索空间配置信息用于指示所述第一IAB基站随机接入过程中接收第二下行消息对应的PDCCH的搜索空间,所述第二时间窗的配置信息用于指示所述第一IAB基站在对应的第二时间窗内接收所述第二下行消息。
  45. 如权利要求44所述的装置,其特征在于,所述第六确定模块用于:
    确定所述第二搜索空间配置信息中的第三参数和/或第四参数,所述第三参数用于指示所述第一IAB基站随机接入过程中接收第二下行消息对应的PDCCH监听时机,所述第四参数用于指示所述第一IAB基站在相同时隙内接收所述第二下行消息的符号位置。
  46. 如权利要求44所述的装置,其特征在于,所述第六确定模块用于:
    确定所述第二时间窗的起始位置和/或窗口长度信息。
  47. 如权利要求46所述的装置,其特征在于,所述第二时间窗的起始位置位于物理随机接入信道PRACH监听时机的最后一个符号之后的至少N个符号之后的最近的控制资源集的第一个符号,所述N为大于1的整数。
  48. 如权利要求46所述的装置,其特征在于,所述第二时间窗的起始位置位于PRACH监听时机的最后一个符号之后的至少一个符号之后的第M个的控制资源集的第一个符号,所述M为大于1的整数。
  49. 一种通信系统,其特征在于,包括第一接入回传一体化IAB基站和第二IAB基站,第一IAB基站包括权利要求25至36任一所述的装置,第二IAB基站包括权利要求37至48任一所述的装置。
  50. 一种第一IAB基站,其特征在于,所述第一IAB基站包括处理器和存储器,所述存储器存储有至少一条指令,所述至少一条指令用于被所述处理器执行以实现上述权利要求1至12中任一所述的方法。
  51. 一种第二IAB基站,其特征在于,所述第二IAB基站包括处理器和存储器,所述存储器存储有至少一条指令,所述至少一条指令用于被所述处理器执行以实现上述权利要求13至24中任一所述的方法。
  52. 一种计算机可读存储介质,其特征在于,所述存储介质存储有至少一条指令,所述至少一条指令用于被处理器执行以实现上述权利要求1至12中任一所述的方法,或者实现上述权利要求13至24中任一所述的方法。
PCT/CN2019/079143 2019-03-21 2019-03-21 一种信息确定方法、装置、系统、设备及存储介质 WO2020186531A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2019/079143 WO2020186531A1 (zh) 2019-03-21 2019-03-21 一种信息确定方法、装置、系统、设备及存储介质
CN201980066103.9A CN112805937B (zh) 2019-03-21 2019-03-21 一种信息确定方法、装置、系统、设备及存储介质

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/079143 WO2020186531A1 (zh) 2019-03-21 2019-03-21 一种信息确定方法、装置、系统、设备及存储介质

Publications (1)

Publication Number Publication Date
WO2020186531A1 true WO2020186531A1 (zh) 2020-09-24

Family

ID=72519503

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/079143 WO2020186531A1 (zh) 2019-03-21 2019-03-21 一种信息确定方法、装置、系统、设备及存储介质

Country Status (2)

Country Link
CN (1) CN112805937B (zh)
WO (1) WO2020186531A1 (zh)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102884732A (zh) * 2010-04-05 2013-01-16 三星电子株式会社 用于在中继物理下行链路控制信道(r-pdcch)中交织数据的装置和方法
US20190342904A1 (en) * 2018-05-07 2019-11-07 Qualcomm Incorporated System information for access and backhaul

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015039351A1 (zh) * 2013-09-23 2015-03-26 华为技术有限公司 一种配置搜索空间的方法、装置及系统

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102884732A (zh) * 2010-04-05 2013-01-16 三星电子株式会社 用于在中继物理下行链路控制信道(r-pdcch)中交织数据的装置和方法
US20190342904A1 (en) * 2018-05-07 2019-11-07 Qualcomm Incorporated System information for access and backhaul

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
HUAWEI; HISILICON: "Resource Multiplexing Between Backhaul and Access in IAB", 3GPP DRAFT; R1-1901533, 1 March 2019 (2019-03-01), Athens, Greece, pages 1 - 8, XP051599230 *
OPPO: "Discussion of Resource Allocation for IAB", 3GPP DRAFT; R1-1803990, 20 April 2018 (2018-04-20), Sanya, China, pages 1 - 4, XP051413079 *

Also Published As

Publication number Publication date
CN112805937A (zh) 2021-05-14
CN112805937B (zh) 2022-08-19

Similar Documents

Publication Publication Date Title
EP3188433B1 (en) Method and device for using unlicensed carrier in transmitting and receiving signal
KR102473623B1 (ko) 업링크 신호를 송신하기 위한 방법, 사용자 장치 및 기지국
JP6732102B2 (ja) ランダムアクセスのための方法及び装置
CN110022607B (zh) 一种波束失败恢复方法、装置及设备
US10045378B2 (en) Channel monitoring method and device
EP4195600A1 (en) Method and apparatus for reporting ai network model support capability, method and apparatus for receiving ai network model support capability, and storage medium, user equipment and base station
US10506593B2 (en) Data transmission method and device in unlicensed frequency band
JP6676192B2 (ja) 制御情報処理方法、基地局、および端末
WO2017133368A1 (zh) 一种非授权频谱中prach信号的传输方法和设备
US20150223184A1 (en) Timing Advance Timer Start for Uplink Transmissions
WO2017024998A1 (zh) 一种数据传输方法及装置
WO2017025066A1 (zh) 一种数据传输方法及装置
US11394593B2 (en) Data channel transmission method, data channel receiving method, and apparatus
JP2021193801A (ja) 無線ネットワークのためのビーム固有および非ビーム固有同期信号ブロック位置
JP2021503849A (ja) ランダムアクセスための方法および装置
CN111867133B (zh) 一种随机接入方法、网络设备和终端设备
CN110972275A (zh) 一种指示信息的传输方法和装置
CN111050412B (zh) 一种随机接入方法及其装置
JP2024059890A (ja) 端末デバイス及び方法
US20220248461A1 (en) Method, device and apparatus for determining channel detection mechanism, and storage medium
EP3993542B1 (en) Transmission of configuration information for detecting multiple signals on an unlicensed frequency band
CN110035551B (zh) 一种laa调度方法和装置
CN109155990A (zh) 一种计数方法及装置
WO2020143827A1 (zh) 一种控制信息的传输方法及装置
CN113906815B (zh) 随机接入过程中的竞争解决

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19919776

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19919776

Country of ref document: EP

Kind code of ref document: A1