WO2018201846A1 - 资源指示方法及通信设备 - Google Patents

资源指示方法及通信设备 Download PDF

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Publication number
WO2018201846A1
WO2018201846A1 PCT/CN2018/082126 CN2018082126W WO2018201846A1 WO 2018201846 A1 WO2018201846 A1 WO 2018201846A1 CN 2018082126 W CN2018082126 W CN 2018082126W WO 2018201846 A1 WO2018201846 A1 WO 2018201846A1
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WO
WIPO (PCT)
Prior art keywords
link
time domain
domain resource
time
indication information
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Ceased
Application number
PCT/CN2018/082126
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English (en)
French (fr)
Inventor
秦熠
栗忠峰
任毅
李知航
纪刘榴
罗健
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to EP18794893.0A priority Critical patent/EP3611984B1/en
Publication of WO2018201846A1 publication Critical patent/WO2018201846A1/zh
Priority to US16/670,188 priority patent/US11463226B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
    • H04L5/0092—Indication of how the channel is divided
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/155—Ground-based stations
    • H04B7/15528—Control of operation parameters of a relay station to exploit the physical medium
    • H04B7/15542—Selecting at relay station its transmit and receive resources
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/155—Ground-based stations
    • H04B7/15528—Control of operation parameters of a relay station to exploit the physical medium
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/52—Allocation or scheduling criteria for wireless resources based on load
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/53—Allocation or scheduling criteria for wireless resources based on regulatory allocation policies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK

Definitions

  • the present application relates to the field of communications and, more particularly, to a resource indication method and a communication device.
  • the relay system includes three types of nodes: a base station, a relay, and a user.
  • the link between the base station and the relay is a backhaul (BH), and the link between the relay and the user is an access link (AC).
  • BH backhaul
  • AC access link
  • a time domain resource of a backhaul link or an access link is a periodic time domain resource configured by high layer signaling, and a configuration change of a high layer signaling is slow.
  • LTE Long Term Evolution
  • the present application provides a resource indication method and a communication device, which can improve the resource allocation flexibility of the link, thereby facilitating the solution of the transmission bottleneck problem.
  • a resource indication method comprising:
  • the first device to the second device means transmits the first information indicating the n-th time, the first indication information for indicating a first n + k 0 through n + k 1 of the first link or the second time unit chain a first time domain resource of the path, the first link is a link between the first device and the second device, and the second link is between the second device and a third device
  • the link k 0 is an integer greater than or equal to 0 and less than or equal to k 1
  • k 1 is an integer.
  • the first link may be a backhaul link between the first device and the second device.
  • the second link may be a backhaul link or an access link between the second device and the third device.
  • the third link is a user equipment, the second link is an access link.
  • the first link and the second link are different links, and in the subsequently evolved communication system, the first link and the second link may have other names.
  • the backhaul link or the access link k 1 time unit can be dynamic and flexible for the backhaul link or the access link Allocate time domain resources, which helps to solve the transmission bottleneck problem of the backhaul link or access link in time.
  • the method further includes:
  • the first device sends second indication information to the second device, where the second indication information is used to indicate a second time domain resource of the first link and/or the second link. Or the first domain resource when the first link of the second link.
  • the first indication information indicates the second in said n + k 0 through n + k 1 the time unit A location other than the second time domain resource.
  • the first device to the second device may also indicate k and / or a value of 0 k 1, indicating the type or n + n + k range of 0 to k. 1 unit of time, indicating that the first indication information or The indicated location of the first time domain resource of the first link or the second link.
  • the first device may further indicate, to the second device, that the resource is not used by the first indication information, and the second device determines, according to the resource that is not used by the first indication information, the k 0 and / K or the value 1 or 0 of the first through n + k n + k range of 1 time unit, or the first indication of the first link or second link information indicated by the first time domain The location of the resource.
  • the time domain resource of the second link includes a first type of time domain resource and a second type of time domain resource of the second link, and the first class of the second link
  • the location of the time domain resource and the second type of time domain resource of the second link in the time domain meets a preset relationship, and the second type of time domain resource of the second link is used to transmit feedback information, and the feedback The information is feedback of information and/or reference signals transmitted on some or all of the time domain resources of the first type of time domain resources of the second link.
  • the first device sends third indication information to the second device, where the third indication information is used to indicate the first time domain resource set and the second time domain resource set, where the first a time domain resource within the time domain resource set for the uplink of the first link and a downlink of the second link, the second time domain resource set being used for the downlink of the first link and the The uplink of the second link.
  • the handover between the first link and the second link may not require the protection time, that is, the second device is either transmitting or receiving.
  • the first indication information is further used to indicate a type of the first time domain resource of the first link or the second link, where the first time of the first link is The type of the domain resource is an uplink or downlink time domain resource for the first link, and the type of the first time domain resource of the second link is an uplink or downlink for the second link Time domain resources.
  • the first indication information includes one of the following information: an identifier of the first time domain resource of the first link or the second link in multiple sets of candidate time domain resources, the first link or the second link of the first time domain resource in said first through n + k 0 k 1 n ratio information in units of time occupied by +, the first link and the the first time domain resource of said second link of said first through n + k 0 n + k 1 time unit switching position.
  • the first indication information indicates said first through n + k 0 n + k 1 time unit time of the first link unit or the second link The first time domain resource.
  • the first indication information may indicate the first time domain resource of the first link or the second link in a bitmap manner.
  • the method further includes: the first device receiving status information of the first link and/or the second link sent by the second device, the status information Includes channel state information and/or load information.
  • the first device can determine the time-frequency resource of the link according to the state information of the link, which is beneficial to improving the reliability of the link transmission, and is also beneficial to improving resource utilization.
  • a resource indication method includes:
  • the second device receives the first indication information that is sent by the first device in the nth time unit, where the first indication information is used to indicate the first link or the second one of the n+k 0th to the n+k 1th time units a first time domain resource of the link, the first link is a link between the first device and the second device, and the second link is a second device and a third device
  • the interlink k 0 is an integer greater than or equal to 0 and less than or equal to k 1 , and k 1 is an integer.
  • the method further includes:
  • the second device receives the second indication information that is sent by the first device, where the second indication information is used to indicate a second time domain resource of the first link and/or the second link, where the first indication is said first information indicating a first link or the second link time domain resource is located at the position 0 through n + k. 1 time unit than the second time domain resource of n + k .
  • the time domain resource of the second link includes a first type of time domain resource of the second link and a second type of time domain resource of the second link, where the second link The location of the first type of the time domain resource and the second type of the time domain resource of the second link in the time domain meets a preset relationship, and the second type of time domain resource of the second link is used to transmit feedback information.
  • the feedback information is feedback of information transmitted on some or all of the time domain resources of the first type of time domain resources of the second link.
  • the first indication information is further used to indicate a type of the first time domain resource of the first link or the second link, where the first time of the first link is The type of the domain resource is an uplink or downlink time domain resource for the first link, and the type of the first time domain resource of the second link is an uplink or downlink for the second link Time domain resources.
  • the first indication information includes one of the following information: an identifier of the first time domain resource of the first link or the second link in multiple sets of candidate time domain resources, the first time domain resource link in the second to n 0 k 1 scale information in units of time occupied by said first n + k +, the first link of the first link or the a first time-domain time domain resource and said second resource link in said first through n + k 0 n + k 1 time unit switching position.
  • the first indication information indicates said first through n + k 0 n + k 1 time unit time of the first link unit or the second link The first time domain resource.
  • the method further includes:
  • the second device sends status information of the first link and/or the second link to the first device, where the status information includes channel status information and/or load information.
  • a communication device comprising:
  • a processor for generating a first indication information, the first indication information for indicating a first n + k 0 through n + k 1 of the first time domain resource unit in time a first link or the second link
  • the first link is a link between the first device and the second device
  • the second link is a link between the second device and a third device, where k 0 is An integer greater than or equal to 0 and less than or equal to k 1 , k 1 being an integer;
  • a transceiver configured to send the first indication information in an nth time unit.
  • the backhaul link or the access link k 1 time unit can be dynamic and flexible for the backhaul link or the access link Allocate time domain resources, which helps to solve the transmission bottleneck problem of the backhaul link or access link in time.
  • the processor is further configured to generate second indication information, where the second indication information is used to indicate a second time domain of the first link and/or the second link or the first domain resource when the first link of the second link resources indicated by the first indication information in said first through n + k 0 n + k 1 in the second time unit a location outside of the time domain resource;
  • the transceiver is further configured to send the second indication information.
  • the time domain resource of the second link includes a first type of time domain resource and a second type of time domain resource of the second link, and the first class of the second link
  • the location of the time domain resource and the second type of time domain resource of the second link in the time domain meets a preset relationship, and the second type of time domain resource of the second link is used to transmit feedback information, and the feedback The information is feedback of information transmitted on some or all of the time domain resources of the first type of time domain resources of the second link.
  • the transceiver is further configured to send third indication information, where the third indication information is used to indicate a first time domain resource set and a second time domain resource set, where the first time domain resource set The time domain resource is used for the uplink of the first link and the downlink of the second link, and the second time domain resource set is used for the downlink of the first link and the second link Upward.
  • the first indication information is further used to indicate a type of the first time domain resource of the first link or the second link, where the first time of the first link is The type of the domain resource is an uplink or downlink time domain resource for the first link, and the type of the first time domain resource of the second link is an uplink or downlink for the second link Time domain resources.
  • the first indication information includes one of the following information: an identifier of the first time domain resource of the first link or the second link in multiple sets of candidate time domain resources, said first link or the second link of the first time domain resource in said first through n + k 0 k 1 n ratio information in units of time occupied by +, the first link and the the first time domain resource of said second link of said first through n + k 0 n + k 1 time unit switching position.
  • the first indication information indicates said first through n + k 0 n + k 1 time unit time of the first link unit or the second link The first time domain resource.
  • the transceiver is further configured to receive status information of the first link and/or the second link sent by the second device, where the status information includes channel status information. And / or load information.
  • a communication device comprising:
  • a transceiver for receiving a first indication information, the first indication information for indicating a first n + k 0 to the n + first time domain resources first link k 1 time unit or the second link
  • the first link is a link between the first device and the second device
  • the second link is a link between the second device and a third device, where k 0 is An integer greater than or equal to 0 and less than or equal to k 1 , and k 1 is an integer.
  • the transceiver is further configured to receive second indication information, where the second indication information is used to indicate a second time domain resource of the first link and/or the second link, the first indication information indicates the first link or the second link of the first time domain resource is the resource in the second time domain of the second n + k 0 through n + k 1 time unit Outside location.
  • the time domain resource of the second link includes a first type of time domain resource of the second link and a second type of time domain resource of the second link, where the second link The location of the first type of the time domain resource and the second type of the time domain resource of the second link in the time domain meets a preset relationship, and the second type of time domain resource of the second link is used to transmit feedback information.
  • the feedback information is feedback of information transmitted on some or all of the time domain resources of the first type of time domain resources of the second link.
  • the first indication information is further used to indicate a type of the first time domain resource of the first link or the second link, where the first time of the first link is The type of the domain resource is an uplink or downlink time domain resource for the first link, and the type of the first time domain resource of the second link is an uplink or downlink for the second link Time domain resources.
  • the first indication information includes one of the following information: an identifier of the first time domain resource of the first link or the second link in multiple sets of candidate time domain resources, the first time domain resource link in the second to n 0 k 1 scale information in units of time occupied by said first n + k +, the first link of the first link or the a first time-domain time domain resource and said second resource link in said first through n + k 0 n + k 1 time unit switching position.
  • the first indication information indicates said first through n + k 0 n + k 1 time unit time of the first link unit or the second link The first time domain resource.
  • the transceiver is further configured to send status information of the first link and/or the second link, where the status information includes channel status information and/or load information.
  • the network device provided by the present application may include a module for performing the corresponding behavior of the network device in the above method design.
  • the module can be software and/or hardware.
  • the terminal provided by the present application may include a module for performing a terminal behavior in the above method design.
  • the module can be software and/or hardware.
  • Yet another aspect of the present application provides a computer readable storage medium having instructions stored therein that, when executed on a computer, cause the computer to perform the methods described in the above aspects.
  • Yet another aspect of the present application provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the methods described in the various aspects above.
  • FIG. 1 is a schematic structural diagram of a system according to an embodiment of the present invention.
  • FIG. 2 is a schematic flowchart of a resource indication method according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of access link resources according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of resource grouping according to an embodiment of the present invention.
  • FIG. 5 is another schematic diagram of resource grouping according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of another system according to an embodiment of the present invention.
  • FIG. 7 is a schematic flowchart of a resource indication method according to another embodiment of the present invention.
  • FIG. 8 is a schematic flowchart of a resource indication method according to another embodiment of the present invention.
  • FIG. 9 is a schematic diagram of link grouping according to another embodiment of the present invention.
  • FIG. 10 is a schematic diagram of link grouping according to another embodiment of the present invention.
  • FIG. 11 is a schematic structural diagram of a network device according to an embodiment of the present invention.
  • FIG. 12 is a schematic structural diagram of a terminal according to another embodiment of the present invention.
  • FIG. 1 shows a possible system network diagram of the present application.
  • a network device such as a base station
  • a user equipment such as a base station
  • FIG. 1 shows a possible system network diagram of the present application.
  • a network device such as a base station
  • a user equipment such as a base station
  • FIG. 1 shows a possible system network diagram of the present application.
  • a network device such as a base station
  • a user equipment For the sake of clarity, only one relay node is shown in the figure. To facilitate understanding, some of the terms related to this application are described below.
  • UE User Equipment
  • UE is a terminal device with communication function, which may also be called a terminal, and may include a handheld device with wireless communication function, an in-vehicle device, a wearable device, a computing device, or other connected to a wireless modem. Processing equipment, etc.
  • User equipment can be called different names in different networks, such as: terminals, mobile stations, subscriber units, stations, cellular phones, personal digital assistants, wireless modems, wireless communication devices, handheld devices, laptops, cordless phones, Wireless local loop station, etc.
  • the present application is simply referred to as a user equipment UE or a terminal.
  • the network device may be a base station (BS), a wireless access device in a cloud network, or a relay station or the like having a wireless transceiver function.
  • a base station which may also be referred to as a base station device, is a device deployed in a wireless access network to provide wireless communication functions.
  • the name of the base station may be different in different wireless access systems, for example, in a Universal Mobile Telecommunications System (UMTS) network, the base station is called a Node B, and the base station in the LTE network is called An evolved Node B (e.g., eNB or eNodeB) may be referred to as a Transmission Reception Point (TRP) network node or a g-Node B (gNB) in a future 5G system.
  • TRP Transmission Reception Point
  • gNB g-Node B
  • the time unit may be a symbol, a mini-slot, a slot, a subframe, a frame, a set of symbols, a set of mini-slots, a time slot.
  • the set of the subframes, the set of the subframes, or the set of the frames, etc. are not limited in this embodiment of the present invention.
  • the first device may also indicate the type of the time unit to the second device, for example, indicating that the time unit is a symbol, a subframe or a time slot, and the like.
  • the type of the time unit can also be preset.
  • first and “second” and the like in the specification and claims of the present application and the drawings are used to distinguish different objects, and are not intended to describe a particular order.
  • the term “and/or” is merely an association describing the associated object, indicating that there may be three relationships. For example, A and/or B may indicate that A exists separately, and A and B exist simultaneously, and B cases exist alone.
  • the character "/" in this article generally indicates that the contextual object is an "or" relationship.
  • the time domain resources of the backhaul link or the access link in the prior art are statically configured periodic time domain resources, the resource allocation of the backhaul link or the access link is not flexible enough, so when the backhaul chain When there is a bottleneck in the transmission of any link in the path and the access link, the link cannot be flexibly allocated resources, which may result in the failure to solve the transmission bottleneck problem in time.
  • Example embodiments provide a communication method of the present invention, by indicating the n-th unit of the n + k 0 to the n + time domain resources the backhaul link or the access link k 1 time unit, can be dynamic and flexible
  • the time domain resource is allocated for the backhaul link or the access link, thereby helping to solve the transmission bottleneck problem of the backhaul link or the access link in time.
  • the relay system shown in FIG. 1 may include one relay node, and may also include multiple relay nodes.
  • a relay system includes a plurality of relay nodes, a link between two adjacent relay nodes is also referred to as a backhaul link.
  • method 200 is a schematic flow diagram of a communication method 200 in accordance with an embodiment of the present invention. As shown in FIG. 2, method 200 includes the following.
  • the n-th device information to the second device means transmits the first indication, the first indication information for indicating a first n + k 0 through n + k 1 of the first link or the second time unit chain
  • the first time domain resource of the path, the first link is a link between the first device and the second device, and the second link is a link between the second device and the third device, where k 0 is greater than or equal to 0 and an integer less than or equal to k 1 , and k 1 is an integer.
  • the second device receives the first indication information, and according to the first indication information, communicates with the first device on the first time domain resource of the first link, or the first time of the second link Communicate with the third device on the domain resource.
  • the first indication information indicating if the first n + k 0 through n + k 1 time domain resource unit in time a first link, the first n + k 0 through n + k 1 unit of time
  • the resource other than the time domain resource of the first link is the time domain resource of the second link.
  • the first indication information indicates that the first through n + k 0 n + k 1 times time domain resource unit of the second link, the first through n + k 0 k 1 n +, in addition to the second unit of time
  • the resources outside the time domain resource of the link are the time domain resources of the first link. Therefore, the second device may determine the time domain resource of the first link and the time domain resource of the second link according to the first indication information.
  • the first device may be a network device (such as a base station), and may also be a relay node in the link.
  • the second device may be a relay node in the link or a user equipment. It should be noted that the relay node in the link may also be a network device (such as a base station), a UE, or other device that implements a relay function.
  • the first link may be a backhaul link between the first device and the second device.
  • the second link may be a backhaul link or an access link between the second device and the third device.
  • the third link is a user equipment, the second link is an access link.
  • Embodiments of the present invention by indicating the n-th unit of the n + k 0 to the n + time domain resources the backhaul link or the access link k 1 time unit, can be dynamic and flexible chain for return
  • the road or access link allocates time domain resources, which helps to solve the transmission bottleneck problem of the backhaul link or the access link in time.
  • the values of k 0 and k 1 may be predefined, may be configured by a base station, or may be configured by higher layer signaling. In some embodiments, k 1 is greater than or equal to 2*k 0 . In some embodiments, k 0 is greater than or equal to the maximum scheduled time of the first link.
  • the second device may report the value of k 0 and/or k 1 or the request of the range of the n+k 0 to n+k 1 time unit, or the first link or the second link The request of the location of the first time domain resource, the second device reports the scheduling processing capability of the second device by reporting the above information.
  • the first device may also allocate the frequency domain resource and/or the code domain resource to the second device, which may be referred to the prior art.
  • the first indication information may be carried in high-level signaling or Downlink Control Information (DCI), and may also be carried in a combination of high-level signaling and DCI.
  • the high layer signaling may configure multiple sets of candidate time domain resources, and the DCI indicates a set of candidate time domain resources of the multiple sets of candidate time domain resources.
  • a high-level signaling is used to configure a plurality of candidate time-domain resource sets, and another high-level signaling is used to configure one of the candidate time-domain resource sets, where the DCI is used to indicate a candidate time in the candidate time-domain resource set. Domain resource.
  • the high layer signaling may include any one of the following: Radio Resource Control (RRC) signaling, system message, broadcast message, and Media Access Control Control Element (MAC CE).
  • RRC Radio Resource Control
  • MAC CE Media Access Control Control Element
  • the DCI may be scrambled by using a Radio Network Tempory Identity (RNTI) of the second device, so that the second device can correctly receive the DCI according to the RNTI.
  • RNTI Radio Network Tempory Identity
  • the RNTI is configured for the base station to the second device.
  • the RNTI is configured for the second device group, and the second device in the second device group has the same RNTI.
  • the RNTI of the user equipment with the relay function is the same as that configured or preset by the RNTI, for example, the RNTI is configured by a broadcast message/system message, or predefined by a communication protocol.
  • the DCI may be carried on a downlink control channel specific to the relay node, or used for a pre-configured downlink control channel, or a user-specific downlink control channel.
  • the DCI or RNTI is dedicated to a second device having a relay function, and is used when the second device has a relay function.
  • the first indication information may be carried in a newly added domain or field in the DCI of the existing format, or carried in the DCI of the new format.
  • the first indication information may be used to indicate a time domain resource of the access link in the nth time unit. That is to say, the first indication information can also be used to indicate the time domain resource of the access link in the current time unit.
  • the time domain resource of the access link indicated by the first indication information may be a downlink time domain resource for the access link.
  • time domain resources for uplink feedback such as a time domain resource of a Negative-Acknowledgment (NACK)/Acknowledgment (ACK) may be determined.
  • NACK Negative-Acknowledgment
  • ACK Acknowledgment
  • the time domain resource for the uplink feedback of the access link and the downlink time domain resource for the access link may be located on different time units (such as a slot).
  • the time domain resource of the second link includes a first type of time domain resource of the second link and a second type of time domain resource of the second link, and the first type of time domain resource of the second link and the first The location of the second type of time domain resource of the second link in the time domain satisfies the preset relationship.
  • a second type of time domain resource of the second link is separated from a first type of time domain resource of the second link by a predetermined number of time units.
  • the preset relationship that the first type of time domain resource of the second link and the second type of time domain resource of the second link meet in the time domain may be predefined or configured by higher layer signaling.
  • the second type of time domain resource of the second link and the first type of time domain resource of the second link may be different time unit types, for example, the first type of time domain resource of the second link is one or more time slots.
  • the second type of time domain resource of the second link is one or more symbols.
  • the second type of time domain resource of the second link is used to transmit feedback information, which is feedback of information transmitted on some or all of the time domain resources in the first type of time domain resources of the second link.
  • the first type of time domain resource of the second link is used for downlink transmission of the access link
  • the second type of time domain resource of the second link is used for uplink feedback of the access link, such as for transmitting NACK/ ACK.
  • the first indication information includes indication information of the first type of time domain resource of the second link and the second type of time domain resource of the second link.
  • the first indication information includes indication information of the first type of time domain resource of the second link, and the UE may be configured according to the first type of time domain resource of the second link and the second type of time domain resource of the second link A second type of time domain resource of the second link is determined by a preset relationship that the location on the time domain satisfies.
  • the length of the second type of time domain resource of the second link in the time domain is predefined or configured by higher layer signaling.
  • the time domain resource of the first link includes a first type of time domain resource of the first link and a second type of time domain resource of the first link, and the first type of time domain resource of the first link and the first The location of the second type of time domain resource of a link in the time domain satisfies a preset relationship.
  • a second type of time domain resource of the first link is separated from a first type of time domain resource of the first link by a predetermined number of time units.
  • the preset relationship that the first type of time domain resource of the first link and the second type of time domain resource of the first link meet in the time domain may be predefined or configured by higher layer signaling.
  • the second type of time domain resource of the first link and the first type of time domain resource of the first link may be different time unit types, for example, the first type of time domain resource of the first link is one or more time slots.
  • the second type of time domain resource of the first link is one or more symbols.
  • the second type of time domain resource of the first link is used to transmit feedback information, which is feedback of information transmitted on some or all of the time domain resources in the first type of time domain resources of the first link.
  • the first type of time domain resource of the first link is used for downlink transmission of the back link
  • the second type of time domain resource of the first link is used for uplink feedback of the back link, such as for transmitting NACK/ ACK, CQI information feedback, beam scanning information feedback.
  • the first indication information may further include indication information of the first type of time domain resource of the first link and the second type of time domain resource of the first link.
  • the first indication information includes indication information of the first type of time domain resource of the first link, and the UE may be configured according to the first type of time domain resource of the first link and the second type of time domain resource of the first link.
  • a second type of time domain resource of the first link is determined by a preset relationship that the location on the time domain satisfies.
  • the length of the second type of time domain resource of the first link in the time domain is predefined or configured by higher layer signaling.
  • the first indication information is further used to indicate a type of the first time domain resource of the first link or the second link, where the type of the first time domain resource of the first link is used for the first link.
  • the uplink or downlink time domain resource, the type of the second link resource is an uplink or downlink time domain resource for the second link.
  • the first device may allocate the time domain resource for the second device, and indicate whether the time domain resource allocated for the second device is used for uplink transmission or downlink transmission of the link.
  • the uplink of the first link and the downlink of the second link are both The second device sends that the downlink of the first link and the uplink of the second link are both received by the second device.
  • the time domain resources can be divided into two groups for the transmission and reception of the second device:
  • Resource group 1 Downtime time domain resources available for uplink and second links of the first link;
  • Resource Group 2 Upstream time domain resources available for the downlink and second links of the first link.
  • time domain resources can be divided into two types for sending and receiving of the second device:
  • Type 1 Downtime time domain resources available for the uplink and second links of the first link;
  • Type 2 Uplink time domain resources available for the downlink and second links of the first link.
  • the first indication information may further include an identifier of the resource group or a type of the time domain resource, so that the second device may determine that the time domain resource indicated by the first indication information is used according to the identifier of the resource group or the type of the time domain resource. Which transmission scenario.
  • the switching between the first link and the second link in the same resource group or the same resource type may not require protection time, that is, the second Devices are either sent or received. Specifically, the switching between the uplink of the first link and the downlink of the second link does not require a guard time, and the switching between the downlink of the first link and the uplink of the second link does not require a guard time.
  • the specific form of resource division in the resource group is not limited.
  • the time domain resources used for uplink transmission or downlink transmission of the same link in the resource group may be continuous.
  • the time domain resources for the uplink or downlink transmission of the same link in the resource group may also be discontinuous.
  • the Guard Period (GAP) may indicate the guard interval.
  • the first indication information includes an identifier of the first time domain resource of the first link or the second link in the group of candidate time domain resources.
  • a plurality of sets of candidate time domain resources may be pre-configured for the second device, such that the second device may identify the first time domain resource of the first link or the second link in the multiple sets of candidate time domain resources. Determining a first time domain resource of the first link or the second link.
  • time domain resource of the first link and the time domain resource of the second link in the time domain may be pre-defined or configured by the base station, for example, the time domain resource of the first link is earlier than the second link.
  • the time domain resource, or the time domain resource of the second link is earlier than the time domain resource of the first link.
  • the first indication information may comprise one of the following: a first time domain resource is the first link or the second link at the n + 0 to n k 1 scale information occupied time unit k + the first time domain resources first and second links of n + k 0 through n + k 1 time unit in the switching position.
  • the second device may determine the time domain resource of the first link or the time domain resource of the second link according to the first indication information.
  • a guard interval may be set between the first time domain resource of the first link and the first time domain resource of the second link in the n+k 0 to the n+k 1 time unit, and the length of the guard interval may be Configured or pre-defined by higher layer signaling.
  • the length of the guard interval may be a reference subcarrier interval, or 2 times a reference subcarrier interval, or 4 times a reference subcarrier interval, etc.
  • the reference subcarrier interval is a subcarrier interval used for pre-switch transmission, or a base station.
  • a subcarrier spacing configured.
  • the guard interval is located at the last of the last time units in the first time domain resource of the first link. At least one symbol.
  • the guard interval is located at least last of the last time unit in the first time domain resource of the second link. On a symbol.
  • the first indication information for indicating a first n + k 0 a first time domain resources through n + k 1 time unit or time unit is a first link of the second link.
  • the first indication information may indicate the first time domain resource of the first link or the second link in a bitmap manner. For example, assume that the first n + k 0 through n + k 1 unit of time is 10 time units and the bit map corresponding to a time represented by a first time domain resource unit is the first link, the bitmap 0010100101 Indicates that the third, fifth, eighth, and tenth time units of the ten time units are the first time domain resources of the first link.
  • the method 200 may further include: 220: The second device sends the state information of the first link and/or the state information of the second link to the first device.
  • the first device receives status information of the first link and/or the second link.
  • the status information may include channel status information and/or load information.
  • the first device can determine the time-frequency resource of the link according to the state information of the link, which is beneficial to improving the reliability of the link transmission, and is also beneficial to improving resource utilization. For example, the first device may determine the time-frequency resource of the link according to the status information of the link, such as optimizing the cell throughput rate.
  • the method 200 may further include:
  • the first device sends the second indication information to the second device, where the second indication information indicates the second time domain resource of the first link and/or the second link, and the first link or the first indication indicated by the first indication information
  • the first time domain resource of the two links is located at a location other than the second time domain resource in the n+k 0 through n+k 1 time units.
  • the second device receives the second indication information.
  • the second indication information may further indicate a period of the specified time domain resource.
  • the second indication information may be carried in higher layer signaling or DCI.
  • the second indication information is carried in the high layer signaling
  • the first indication information is carried in the DCI, so that the partial time domain can be semi-statically configured for the first link and/or the second link by using the high layer signaling.
  • Resources, and dynamically configuring another part of the time domain resource for the first link or the second link through dynamic signaling, such a configuration is more flexible, and is beneficial for timely solving the transmission bottleneck problem of the back link or the access link.
  • the resources indicated by the second signaling may be used to transmit some periodic reference signals or channels.
  • the resources that are partially fixed for the second link or the first link may also be predefined, in which case the first device does not need to send the second indication information to the second device.
  • the time unit in which the synchronization signal of the first link is located is fixed for use by the first link.
  • the second indication information indicates the second time domain resource of the first link, the second time domain resource cannot be used for the transmission of the first link; if the second indication information indicates the second link of the second link The time domain resource, the second time domain resource cannot be used for the transmission of the first link.
  • the first device may also indicate to the second device time domain resources that are not available for the first link and/or the second link.
  • the method 200 may further include:
  • the first device sends the third indication information to the second device, where the third indication information is used to indicate the first time domain resource set and the second time domain resource set, where the time domain resource in the first time domain resource set is used for The uplink of the one link and the downlink of the second link, the second time domain resource set is used for the downlink of the first link and the uplink of the second link.
  • the second device receives the third indication information.
  • the division of the first time domain resource set and the second time domain resource set herein may refer to the division of resource group 1 and resource group 2 in the foregoing, or the division of type 1 and type of the time domain resource. Therefore, the second device in the same time domain resource set does not need to perform the transceiving handover.
  • the third indication information may be carried in the higher layer signaling and/or in the DCI.
  • the second device may determine, according to the third indication, an uplink transmission for the first link or the second link of the first time domain resource of the first link or the second link indicated by the first indication information, or is used for the first Downlink transmission of a link or a second link.
  • the second device by configuring two sets of time domain resources for the second device in advance, the second device can determine whether the allocated time domain resource is used for uplink transmission or downlink transmission of the link, and The two devices do not need to stay guard time between the switching of the first link and the second link.
  • the downlink direction in the embodiment of the present invention refers to the direction of DCI transmission.
  • the first device sends the DCI to the second device, and the first device transmits the downlink transmission to the second device, and the second device transmits the uplink transmission to the first device.
  • the method 200 may further include: 250.
  • the second device sends a first resource request message to the first device, where the first resource request message is used to request a time frequency of the first link or the second link. Resources.
  • the first device receives the first resource request message.
  • the first device may send the first indication information to the second device according to the received first resource request message.
  • 220, 230, 240, and 250 are all optional processes. In the embodiment of the present invention, any one of 220 to 250 may not be performed, and some or all of the processes may be performed. .
  • the second device is also in communication with the fourth device, and the fourth device may also allocate time domain resources for the second link.
  • the second device may notify the first device of the time domain resource allocated by the fourth device for the second link, and the first device may allocate the time domain resource to the second link according to the time-frequency resource allocated by the fourth device, which is helpful.
  • the second device cannot determine which time domain resources to use for the second link transmission because the time domain resources of the second link allocated by the first device and the fourth device are different.
  • the first resource request message may be used to indicate a time domain resource allocated by the fourth device for the second link; or the first resource request message is used to indicate a time domain resource required by the second link.
  • the time domain resource required for the second link may be determined by the second device according to the time-frequency resource allocated by the fourth device for the second link.
  • first indication information, the second indication information, and the third indication information in the foregoing embodiments may be separately sent, or may be sent simultaneously.
  • first indication information, the second indication information, and the third indication information may be carried in different signaling or configuration information, or may be carried in different fields of the same signaling or configuration information.
  • FIG. 7 is a schematic flowchart of a communication method 700 according to another embodiment of the present invention. As shown in FIG. 7, method 700 can include the following.
  • the second device sends the report information to the first device, where the report information is used to indicate a space division multiplexing (SDM) or a frequency division multiplexing (FDM) type supported by the second device.
  • the first device receives the report information.
  • the SDM type supported by the second device includes at least one of the following combinations of at least two: a first link uplink and a second link downlink SDM, a first link downlink and a second link uplink SDM, and a first link Uplink and second link uplink SDM, first link downlink and second link downlink SDM, and do not support SDM. As shown in Table 1 below.
  • the FDM type supported by the second device includes at least one of the following combinations of at least two: a first link uplink and a second link downlink FDM, a first link downlink and a second link uplink FDM, and a first link Uplink and second link uplink FDM, first link downlink and second link downlink FDM, and FDM are not supported. As shown in Table 1 below.
  • the first link is a link between the first device and the second device
  • the second link is a link between the second device and the third device.
  • the downlink direction in the embodiment of the present invention refers to the direction of DCI transmission.
  • the first device sends the DCI to the second device, and the first device transmits the downlink transmission to the second device, and the second device transmits the uplink transmission to the first device.
  • space division multiplexing refers to using the same time-frequency resource and the same or non-orthogonal code domain resources, and transmitting in different spatial directions, or adopting different receiving precoding and/or sending.
  • Precoding is transmitted or transmitted using different receive beams and/or transmit beams.
  • frequency division multiplexing refers to using the same time domain resource and the same or non-orthogonal code domain resources, and transmitting on different frequency domain resources.
  • the first device may allocate a suitable SDM or FDM mode to the second device according to the type of SDM or FDM supported by the second device, and may also allocate link resources more reasonably.
  • the first device is a base station
  • the second device is a relay node.
  • the relay node does not support space division multiplexing
  • the base station needs to allocate resources of the backhaul link and the access link in time division and/or frequency division; If the relay node supports space division multiplexing, the base station can allocate most of the resources for the first link and the second link air separation transmission. For example, if the relay node only supports spatial multiplexing multiplexing that is simultaneously or simultaneously transmitted, that is, only SDM types 1 to 2 are supported, the base station can allocate resources for the first link and the second link type 1 to 2. The multiplexed transmission; if the relay node supports the type 1 to 4 spatial division multiplexing modes, the base station can allocate resources for space division multiplexing transmission of the first link and the second link type 1 to 4.
  • the SDM or FDM capability supported by the second device such as the SDM or FDM type, is reported to the first device, which is beneficial for the first device to allocate resources to the link more reasonably.
  • the method 700 may further include: 720:
  • the first device sends the first indication information to the second device, where the first indication information is used to indicate an SDM or FDM type used by the second device.
  • the second device after receiving the first indication information, performs space division multiplexing transmission according to the space division multiplexing type indicated by the first indication information, or performs frequency division according to the frequency division multiplexing type indicated by the first indication information. Multiplexed transmission.
  • the first device may determine the type of space division multiplexing used by the second device according to the characteristics of the information transmitted on the first link and the second link. For example, if the information on the first link is transmitted with high reliability, such as a PDCCH, the first device may instruct the second device to only enable space division multiplexing of the uplink transmission. This is beneficial to improve the reliability of link transmission and reduce interference between links.
  • the first indication information may be carried in higher layer signaling and/or DCI.
  • the method 700 may further include: the first device sends the second indication information to the second device, where the second indication information is used to indicate one of the following information: applicable to the air separation between the first link and the second link.
  • the resources used are resources for frequency division multiplexing between the first link and the second link, and are not available for space division multiplexing and/or frequency division multiplexing between the first link and the second link.
  • the second device receives the second indication information. By indicating to the second device resources that can be used for space division multiplexing or not for space division multiplexing, this helps to reduce interference between links.
  • the second indication information may be carried in higher layer signaling and/or DCI.
  • the method 700 may further include: the first device sends third indication information to the second device, where the third indication information is used to indicate the following at least one resource set: cannot be used for the first link or the second link. a set of resources, a reference signal of the second link, a set of candidate resources of the control channel and/or the shared channel, and a set of candidate resources of the reference signal, the control channel, and/or the shared channel of the first link.
  • the second device receives the third indication information.
  • the second device may determine the at least one resource set according to the third indication information.
  • the third indication information may be carried in higher layer signaling and/or DCI.
  • the at least one resource set has a corresponding relationship with the link type
  • the second device may further determine the at least one resource set according to the link type.
  • the second device transmits according to the at least one resource set, which is beneficial to avoid interference between the control channel of one link and the shared channel or reference signal of another link.
  • the resources of the pilot or control channel transmitted by one link are orthogonal to the resources of the other link. This can prevent another link from interfering with the control channel or pilot that the current link is transmitting.
  • resources corresponding to different link types may also be predefined, so that the second device can determine the resources of the link according to the link type.
  • the link type here refers to the access link or the backhaul link.
  • the resources in the embodiment of the present invention refer to time domain, frequency domain, and/or code domain resources.
  • the resources in the embodiment of the present invention refer to the time domain and/or the code domain resource.
  • first indication information, the second indication information, and the third indication information in the foregoing embodiments may be separately sent, or may be sent simultaneously.
  • first indication information, the second indication information, and the third indication information may be carried in different signaling or configuration information, or may be carried in different fields of the same signaling or configuration information.
  • FIG. 8 is a schematic flow diagram of a communication method 800 in accordance with another embodiment of the present invention. As shown in FIG. 8, method 800 can include the following.
  • the first device determines multiple link packets of the link where the second device is located, and determines resources of the backhaul link and the access link according to the multiple link packets, and uses the link in the same link group. Different beams are transmitted, and links in the same link packet do not include the same transmission node.
  • the link in link packet 1 or link packet 2 does not include the same transmission node.
  • the links in the link packet 1 and the link packet 2 do not interfere with each other, and can be simultaneously transmitted.
  • the backhaul link 1 and the access link belonging to the link group 1 having the completely non-overlapping node can perform SDM transmission, and the backhaul link 1 and the backhaul link 2 with overlapping nodes , or return link 2 and access link need to perform TDM transmission.
  • all relay nodes perform SDM transmission.
  • Control/RS represents a control signal or a reference signal
  • DL Control/RS represents a downlink control signal or a reference signal
  • UL Control/RS represents an uplink control signal or a reference signal.
  • the first device sends indication information to the second device, where the indication information is used to indicate resources of the backhaul link and the access link.
  • the second device receives the indication information, performs backhaul link transmission according to resources of the backhaul link, and performs access link transmission according to resources of the access link.
  • the first device may be a network device (such as a base station) or a relay node.
  • the second device can be a relay node or a UE.
  • the links in the same link group are transmitted by using different beams, and the resources of the backhaul link and the access link are determined according to the grouping condition of the link, so that the back link and the access link are implemented.
  • the resource allocation of the road is more flexible and helps to improve the utilization of resources.
  • the links in the same link packet do not include the same transit node, the links in the same link packet can reuse the same resources for SDM transmission, thereby facilitating the utilization of resources.
  • Embodiments of the present invention further provide an apparatus embodiment for implementing the steps and methods in the foregoing method embodiments.
  • the method, the steps, the technical details, the technical effects and the like of the foregoing method embodiments are also applicable to the device embodiments, and will not be described in detail later.
  • FIG. 11 shows a schematic structural diagram of a network device 10 which can be applied to the system shown in FIG. 1.
  • Network device 10 includes one or more remote radio unit (RRU) 101 and one or more baseband units (BBUs) 102.
  • the RRU 101 may be referred to as a transceiver unit, a transceiver, a transceiver circuit or a transceiver, etc., which may include at least one antenna 1011 and a radio frequency unit 1012.
  • the RRU 101 is mainly used for transmitting and receiving radio frequency signals and converting radio frequency signals with baseband signals, for example, for transmitting signaling indications in the above embodiments to another device such as a relay node or a terminal.
  • the BBU 102 section is mainly used for baseband processing, device control, and the like.
  • the RRU 101 and the BBU 102 may be physically disposed together or physically separated, that is, distributed base stations.
  • the BBU 102 is a control center of a network device, and may also be referred to as a processing unit, and is mainly used to perform baseband processing functions such as channel coding, multiplexing, modulation, and spreading.
  • the BBU 102 may be composed of one or more boards, and multiple boards may jointly support a single access system radio access network (such as a 5G network), or may support different access modes of the wireless connection. Network access.
  • the BBU 102 also includes a memory 1021 and a processor 1022.
  • the memory 1021 is used to store necessary instructions and data.
  • the processor 1022 is configured to control the network device to perform necessary actions.
  • the memory 1021 and the processor 1022 can serve one or more boards. That is, the memory and processor can be individually set on each board. It is also possible that multiple boards share the same memory and processor.
  • the necessary circuits are also provided on each board.
  • the foregoing network device may be used to implement the method performed by the first device in the foregoing method embodiment shown in FIG. 2, specifically:
  • a processor for generating a first indication information, the first indication information for indicating a first n + k 0 to the n + first time domain resources first link k 1 time unit or the second link, the first One link is a link between the first device and the second device, the second link is a link between the second device and the third device, and k 0 is an integer greater than or equal to 0 and less than or equal to k 1 , k 1 is an integer;
  • a transceiver configured to send the first indication information
  • the transceiver is further configured to send the second indication information, where the second indication information indicates the second time domain resource of the first link and/or the second link, and the first link or the first indication indicated by the first indication information the first two-link time domain resource is located at the first position to the second n + k 0 n + k 1 time unit than the second time domain resource;
  • the transceiver is further configured to send third indication information, where the third indication information is used to indicate the first time domain resource set and the second time domain resource set, where the time domain resource in the first time domain resource set is used for The uplink of the one link and the downlink of the second link, the second time domain resource set is used for the downlink of the first link and the uplink of the second link.
  • the network device may be used to implement the method performed by the second device in the foregoing method embodiment shown in FIG. 2, specifically:
  • a processor for controlling transceiver transceiver signals for controlling transceiver transceiver signals.
  • a transceiver for receiving a first indication information, the first indication information for indicating a first n + k 0 to the n + first time domain resources first link k 1 time unit or the second link, the first One link is a link between the first device and the second device, the second link is a link between the second device and the third device, and k 0 is an integer greater than or equal to 0 and less than or equal to k 1 , k 1 is an integer.
  • the transceiver is further configured to send status information of the first link and/or a status information of the second link.
  • the transceiver is further configured to receive the second indication information, where the second indication information indicates the second time domain resource of the first link and/or the second link, and the first link or the first indication indicated by the first indication information
  • the first time domain resource of the two links is located at a location other than the second time domain resource in the n+k 0 through n+k 1 time units.
  • the transceiver is further configured to receive the third indication information, where the third indication information is used to indicate the first time domain resource set and the second time domain resource set, where the time domain resource in the first time domain resource set is used for The uplink of the one link and the downlink of the second link, the second time domain resource set is used for the downlink of the first link and the uplink of the second link.
  • the network device may be used to implement the method performed by the first device in the foregoing method embodiment shown in FIG. 7, specifically:
  • a transceiver configured to receive report information, where the report information is used to indicate a type of space division multiplexing supported by the second device;
  • a processor configured to determine, according to the reporting information, a space division multiplexing type supported by the second device.
  • the transceiver is further configured to send the first indication information, where the first indication information is used to indicate a type of space division multiplexing used by the second device.
  • the transceiver is further configured to send the second indication information, where the second indication information is used to indicate one of the following information: a resource that can be used for space division multiplexing between the first link and the second link, and is applicable to the first The frequency division multiplexed resources between the link and the second link are not available for the space division multiplexing and frequency division multiplexing resources between the first link and the second link.
  • the transceiver is further configured to send third indication information, where the third indication information is used to indicate at least one resource set: a resource set that cannot be used for the access link, a reference signal of the second link, and a control channel. And/or a set of candidate resources of the shared channel, and a set of candidate resources of the reference signal, the control channel, and/or the shared channel of the first link.
  • the network device may be used to implement the method performed by the first device in the foregoing method embodiment shown in FIG.
  • a processor configured to determine a plurality of link packets of a link where the second device is located, and determine resources of the backhaul link and the access link according to the multiple link packets;
  • the transceiver is configured to send indication information, where the indication information is used to indicate resources of the backhaul link and the access link.
  • FIG. 12 provides a schematic structural diagram of a terminal 20.
  • the terminal can be adapted for use in the system shown in FIG.
  • FIG. 12 shows only the main components of the terminal 20.
  • the terminal 20 includes a processor, a memory, a control circuit or an antenna, and an input and output device.
  • the processor is mainly used for processing communication protocols and communication data, and controlling the entire terminal, executing software programs, and processing data of the software programs.
  • the memory is primarily used to store software programs and data, such as the codebooks described in the above embodiments.
  • the control circuit is mainly used for converting baseband signals and radio frequency signals and processing radio frequency signals.
  • the control circuit together with the antenna can also be called a transceiver, and is mainly used for transmitting and receiving RF signals in the form of electromagnetic waves.
  • the input and output device such as a touch screen, a display screen or a keyboard, is mainly used for receiving data input by a user and outputting data to the user.
  • the processor can read the software program in the storage unit, interpret and execute the instructions of the software program, and process the data of the software program.
  • the processor performs baseband processing on the data to be sent, and then outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit performs radio frequency processing on the baseband signal, and then sends the radio frequency signal to the outside through the antenna in the form of electromagnetic waves.
  • the RF circuit receives the RF signal through the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to the processor, which converts the baseband signal into data and processes the data.
  • FIG. 12 shows only one memory and processor for ease of illustration. In an actual terminal, there may be multiple processors and memories.
  • the memory may also be referred to as a storage medium or a storage device, and the like.
  • the processor may include a baseband processor and a central processing unit, and the baseband processor is mainly used to process communication protocols and communication data, and the central processing unit is mainly used to control the entire terminal and execute the software.
  • the processor in FIG. 12 integrates the functions of the baseband processor and the central processing unit.
  • the baseband processor and the central processing unit can also be independent processors and interconnected by technologies such as a bus.
  • the terminal may include multiple baseband processors to accommodate different network standards.
  • the terminal may include multiple central processors to enhance its processing capabilities, and various components of the terminal may be connected through various buses.
  • the baseband processor can also be expressed as a baseband processing circuit or a baseband processing chip.
  • the central processing unit can also be expressed as a central processing circuit or a central processing chip.
  • the functions of processing the communication protocol and the communication data may be built in the processor, or may be stored in the storage unit in the form of a software program, and the processor executes the software program to implement the baseband processing function.
  • the antenna and control circuit having the transceiving function can be regarded as the transceiving unit 201 of the terminal 20, and the processor having the processing function is regarded as the processing unit 202 of the terminal 20.
  • the terminal 20 includes a transceiver unit 201 and a processing unit 202.
  • the transceiver unit can also be referred to as a transceiver, a transceiver, or a transceiver.
  • the device for implementing the receiving function in the transceiver unit 201 can be regarded as a receiving unit, and the device for implementing the sending function in the transceiver unit 201 is regarded as a sending unit, that is, the transceiver unit 201 includes a receiving unit and a sending unit.
  • the receiving unit may also be referred to as a receiver, a receiver or a receiving circuit, etc.
  • the transmitting unit may be referred to as a transmitter, a transmitter, or a transmitting circuit or the like.
  • the foregoing terminal may be used to implement the method performed by the second device in the foregoing method embodiment shown in FIG. 2, specifically:
  • a processor for controlling transceiver transceiver signals for controlling transceiver transceiver signals.
  • a transceiver for receiving a first indication information, the first indication information for indicating a first n + k 0 to the n + first time domain resources first link k 1 time unit or the second link, the first One link is a link between the first device and the second device, the second link is a link between the second device and the third device, and k 0 is an integer greater than or equal to 0 and less than or equal to k 1 , k 1 is an integer.
  • the transceiver is further configured to send status information of the first link and/or status information of the second link.
  • the transceiver is further configured to receive the second indication information, where the second indication information indicates the second time domain resource of the first link and/or the second link, and the first link or the first indication indicated by the first indication information
  • the first time domain resource of the two links is located at a location other than the second time domain resource in the n+k 0 through n+k 1 time units.
  • the transceiver is further configured to receive the third indication information, where the third indication information is used to indicate the first time domain resource set and the second time domain resource set, where the time domain resource in the first time domain resource set is used for The uplink of the one link and the downlink of the second link, the second time domain resource set is used for the downlink of the first link and the uplink of the second link.
  • the foregoing terminal may be used to implement the method performed by the second device in the foregoing method embodiment shown in FIG. 7, specifically:
  • a processor configured to generate report information, where the report information is used to indicate a type of space division multiplexing supported by the terminal;
  • the transceiver is configured to send the reporting information.
  • the transceiver is further configured to receive the first indication information, where the first indication information is used to indicate a type of space division multiplexing used by the second device.
  • the transceiver is further configured to receive the second indication information, where the second indication information is used to indicate one of the following information: a resource that can be used for space division multiplexing between the first link and the second link, and is applicable to the first The frequency division multiplexed resources between the link and the second link are not available for the space division multiplexing and frequency division multiplexing resources between the first link and the second link.
  • the transceiver is further configured to receive third indication information, where the third indication information is used to indicate at least one resource set: a resource set that cannot be used for the access link, a reference signal of the second link, and a control channel. And/or a set of candidate resources of the shared channel, and a set of candidate resources of the reference signal, the control channel, and/or the shared channel of the first link.
  • the network device may be used to implement the method performed by the second device in the foregoing method embodiment shown in FIG.
  • a transceiver configured to receive indication information, where the indication information is used to indicate resources of a backhaul link and an access link;
  • the processor is configured to control the transceiver to send and receive signals according to resources of the backhaul link and the access link.
  • the above embodiments it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions.
  • the computer program instructions When the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present invention are generated in whole or in part.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transfer to another website site, computer, server, or data center by wire (eg, coaxial cable, fiber optic, digital subscriber line (DSL), or wireless (eg, infrared, wireless, microwave, etc.).
  • the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media.
  • the usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (such as a Solid State Disk (SSD)) or the like.
  • a magnetic medium eg, a floppy disk, a hard disk, a magnetic tape
  • an optical medium eg, a DVD
  • a semiconductor medium such as a Solid State Disk (SSD)

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Abstract

本申请提供了一种资源指示方法及通信设备，该方法包括：第一设备在第n时间单元向第二设备发送第一指示信息，第一指示信息用于指示第n+k 0至第n+k 1时间单元中的第一链路或第二链路的第一时域资源，第一链路为第一设备与第二设备之间的链路，第二链路为第二设备和第三设备之间的链路，k 0为大于或等于0且小于或等于k 1的整数，k 1为整数。本发明实施例中，通过在第n时间单元指示第n+k 0至第n+k 1时间单元中的回传链路或接入链路的时域资源，能够动态灵活地为回传链路或接入链路分配时域资源，从而有助于及时解决回传链路或接入链路的传输瓶颈问题。

Description

资源指示方法及通信设备
本申请要求于2017年05月02日提交中国专利局、申请号为201710301485.1、申请名称为“资源指示方法及通信设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信领域，并且更具体地，涉及资源指示方法及通信设备。
背景技术
在中继系统中包括基站、中继和用户三类节点。其中基站和中继间的链路为回传链路(backhaul，BH)，中继和用户间的链路为接入链路(access，AC)。在长期演进(Long Term Evolution，LTE)系统中，回传链路或接入链路的时域资源是由高层信令配置的周期性的时域资源，高层信令的配置变化速度较慢，当回传链路和接入链路中的任一链路的传输出现瓶颈时，无法及时地解决传输瓶颈问题。
发明内容
本申请提供了一种资源指示方法及通信设备，能够提高链路的资源分配灵活性，从而有利于解决传输瓶颈问题。
第一方面，提供了一种资源指示方法，所述方法包括：
第一设备在第n时间单元向第二设备发送第一指示信息，所述第一指示信息用于指示第n+k 0至第n+k 1时间单元中的第一链路或第二链路的第一时域资源，所述第一链路为所述第一设备与所述第二设备之间的链路，所述第二链路为所述第二设备和第三设备之间的链路，k 0为大于或等于0且小于或等于k 1的整数，k 1为整数。
第一链路可以为第一设备与第二设备之间的回传链路。第二链路可以为第二设备和第三设备之间的回传链路或接入链路。当第三链路为用户设备时，第二链路为接入链路。第一链路和第二链路为不同的链路，在后续演进的通信系统中，第一链路和第二链路还可以有其他的名称。
通过在第n时间单元指示第n+k 0至第n+k 1时间单元中的回传链路或接入链路的时域资源，能够动态灵活地为回传链路或接入链路分配时域资源，从而有助于及时解决回传链路或接入链路的传输瓶颈问题。
在一些可能的实现方式中，所述方法还包括：
所述第一设备向所述第二设备发送第二指示信息，所述第二指示信息用于指示所述第一链路和/或所述第二链路的第二时域资源。可选的，所述第一指示信息指示的所述第一链路或所述第二链路的第一时域资源位于所述第n+k 0至第n+k 1时间单元中所述第二时域资源之外的位置。
可选的，第一设备还可以向第二设备指示k 0和/或k 1的值，或指示所述第n+k 0至第n+k 1时间单元的范围，或指示第一指示信息所指示的第一链路或第二链路的第一时域资源的位置。可选的，第一设备还可以向第二设备指示不用于被第一指示信息所指示的资源，第二设备根据所述不用于被第一指示信息所指示的资源，确定所述k 0和/或k 1的值，或所述第n+k 0至第n+k 1时间单元的范围，或所述第一指示信息所指示的第一链路或第二链路的第一时域资源的位置。
在一些可能的实现方式中，所述第二链路的时域资源包括第一类时域资源和所述第二链路的第二类时域资源，所述第二链路的第一类时域资源和所述第二链路的第二类时域资源在时域上的位置满足预设关系，所述第二链路的第二类时域资源用于传输反馈信息，所述反馈信息是对所述第二链路的第一类时域资源中的部分或全部时域资源上传输的信息和/或参考信号的反馈。
在一些可能的实现方式中，所述第一设备向所述第二设备发送第三指示信息，第三指示信息用于指示第一时域资源集合和第二时域资源集合，所述第一时域资源集合内的时域资源用于所述第一链路的上行和所述第二链路的下行，所述第二时域资源集合用于所述第一链路的下行和所述第二链路的上行。
由于在同一资源组内第二设备无需进行收发切换，因此第一链路和第二链路之间的切换可以不需要保护时间，即第二设备都是发送或都是接收。
在一些可能的实现方式中，所述第一指示信息还用于指示所述第一链路或所述第二链路的第一时域资源的类型，所述第一链路的第一时域资源的类型为用于所述第一链路的上行或下行的时域资源，所述第二链路的第一时域资源的类型为用于所述第二链路的上行或下行的时域资源。
在一些可能的实现方式中，所述第一指示信息包括以下信息之一：所述第一链路或所述第二链路的第一时域资源在多组候选时域资源中的标识，所述第一链路或所述第二链路的第一时域资源在所述第n+k 0至第n+k 1时间单元中所占的比例信息，所述第一链路和所述第二链路的第一时域资源在所述第n+k 0至第n+k 1时间单元中的切换位置。
在一些可能的实现方式中，所述第一指示信息用于指示所述第n+k 0至第n+k 1时间单元中的时间单元为所述第一链路或所述第二链路的第一时域资源。具体地，第一指示信息可以采用位图的方式指示第一链路或第二链路的第一时域资源。
在一些可能的实现方式中，所述方法还包括：所述第一设备接收所述第二设备发送的所述第一链路和/或所述第二链路的状态信息，所述状态信息包括信道状态信息和/或负载信息。
这样，第一设备可以根据链路的状态信息确定该链路的时频资源，有利于提高链路传输的可靠性，还有利于提高资源的利用率。
第二方面，提供了一种资源指示方法，所述方法包括：
第二设备接收第一设备在第n时间单元发送的第一指示信息，所述第一指示信息用于指示第n+k 0至第n+k 1时间单元中的第一链路或第二链路的第一时域资源，所述第一链路为所述第一设备与所述第二设备之间的链路，所述第二链路为所述第二设备和第三设备之间的链路，k 0为大于或等于0且小于或等于k 1的整数，k 1为整数。
这样可以动态灵活地为回传链路或接入链路分配时域资源，从而有助于及时解决回传 链路或接入链路的传输瓶颈问题。
在一些可能的实现方式中，所述方法还包括：
所述第二设备接收所述第一设备发送的第二指示信息，所述第二指示信息用于指示第一链路和/或第二链路的第二时域资源，所述第一指示信息指示的所述第一链路或所述第二链路的第一时域资源位于所述第n+k 0至第n+k 1时间单元中所述第二时域资源之外的位置。
在一些可能的实现方式中，所述第二链路的时域资源包括第二链路的第一类时域资源和第二链路的第二类时域资源，所述第二链路的第一类时域资源和所述第二链路的第二类时域资源在时域上的位置满足预设关系，所述第二链路的第二类时域资源用于传输反馈信息，所述反馈信息是对所述第二链路的第一类时域资源中的部分或全部时域资源上传输的信息的反馈。
在一些可能的实现方式中，所述第一指示信息还用于指示所述第一链路或所述第二链路的第一时域资源的类型，所述第一链路的第一时域资源的类型为用于所述第一链路的上行或下行的时域资源，所述第二链路的第一时域资源的类型为用于所述第二链路的上行或下行的时域资源。
在一些可能的实现方式中，所述第一指示信息包括以下信息之一：所述第一链路或所述第二链路的第一时域资源在多组候选时域资源中的标识，所述第一链路或所述第二链路的第一时域资源在所述第n+k 0至第n+k 1时间单元中所占的比例信息，所述第一链路的第一时域资源和所述第二链路的第一时域资源在所述第n+k 0至第n+k 1时间单元中的切换位置。
在一些可能的实现方式中，所述第一指示信息用于指示所述第n+k 0至第n+k 1时间单元中的时间单元为所述第一链路或所述第二链路的第一时域资源。
在一些可能的实现方式中，所述方法还包括：
所述第二设备向所述第一设备发送所述第一链路和/或所述第二链路的状态信息，所述状态信息包括信道状态信息和/或负载信息。
第三方面，提供了一种通信设备，所述通信设备包括：
处理器，用于生成第一指示信息，所述第一指示信息用于指示第n+k 0至第n+k 1时间单元中的第一链路或第二链路的第一时域资源，所述第一链路为所述第一设备与所述第二设备之间的链路，所述第二链路为所述第二设备和第三设备之间的链路，k 0为大于或等于0且小于或等于k 1的整数，k 1为整数；
收发器，用于在第n时间单元发送所述第一指示信息。
通过在第n时间单元指示第n+k 0至第n+k 1时间单元中的回传链路或接入链路的时域资源，能够动态灵活地为回传链路或接入链路分配时域资源，从而有助于及时解决回传链路或接入链路的传输瓶颈问题。
在一些可能的实现方式中，所述处理器还用于生成第二指示信息，所述第二指示信息用于指示所述第一链路和/或所述第二链路的第二时域资源，所述第一指示信息指示的所述第一链路或所述第二链路的第一时域资源位于所述第n+k 0至第n+k 1时间单元中所述第二时域资源之外的位置；
所述收发器还用于发送所述第二指示信息。
在一些可能的实现方式中，所述第二链路的时域资源包括第一类时域资源和所述第二链路的第二类时域资源，所述第二链路的第一类时域资源和所述第二链路的第二类时域资源在时域上的位置满足预设关系，所述第二链路的第二类时域资源用于传输反馈信息，所述反馈信息是对所述第二链路的第一类时域资源中的部分或全部时域资源上传输的信息的反馈。
在一些可能的实现方式中，所述收发器还用于发送第三指示信息，第三指示信息用于指示第一时域资源集合和第二时域资源集合，所述第一时域资源集合内的时域资源用于所述第一链路的上行和所述第二链路的下行，所述第二时域资源集合用于所述第一链路的下行和所述第二链路的上行。
在一些可能的实现方式中，所述第一指示信息还用于指示所述第一链路或所述第二链路的第一时域资源的类型，所述第一链路的第一时域资源的类型为用于所述第一链路的上行或下行的时域资源，所述第二链路的第一时域资源的类型为用于所述第二链路的上行或下行的时域资源。
在一些可能的实现方式中，所述第一指示信息包括以下信息之一：所述第一链路或所述第二链路的第一时域资源在多组候选时域资源中的标识，所述第一链路或所述第二链路的第一时域资源在所述第n+k 0至第n+k 1时间单元中所占的比例信息，所述第一链路和所述第二链路的第一时域资源在所述第n+k 0至第n+k 1时间单元中的切换位置。
在一些可能的实现方式中，所述第一指示信息用于指示所述第n+k 0至第n+k 1时间单元中的时间单元为所述第一链路或所述第二链路的第一时域资源。
在一些可能的实现方式中，所述收发器还用于接收所述第二设备发送的所述第一链路和/或所述第二链路的状态信息，所述状态信息包括信道状态信息和/或负载信息。
第四方面，提供了一种通信设备，所述通信设备包括：
收发器，用于接收第一指示信息，所述第一指示信息用于指示第n+k 0至第n+k 1时间单元中的第一链路或第二链路的第一时域资源，所述第一链路为所述第一设备与所述第二设备之间的链路，所述第二链路为所述第二设备和第三设备之间的链路，k 0为大于或等于0且小于或等于k 1的整数，k 1为整数。
这样可以，动态灵活地为回传链路或接入链路分配时域资源，从而有助于及时解决回传链路或接入链路的传输瓶颈问题。
在一些可能的实现方式中，所述收发器还用于接收第二指示信息，所述第二指示信息用于指示第一链路和/或第二链路的第二时域资源，所述第一指示信息指示的所述第一链路或所述第二链路的第一时域资源位于所述第n+k 0至第n+k 1时间单元中所述第二时域资源之外的位置。
在一些可能的实现方式中，所述第二链路的时域资源包括第二链路的第一类时域资源和第二链路的第二类时域资源，所述第二链路的第一类时域资源和所述第二链路的第二类时域资源在时域上的位置满足预设关系，所述第二链路的第二类时域资源用于传输反馈信息，所述反馈信息是对所述第二链路的第一类时域资源中的部分或全部时域资源上传输的信息的反馈。
在一些可能的实现方式中，所述第一指示信息还用于指示所述第一链路或所述第二链路的第一时域资源的类型，所述第一链路的第一时域资源的类型为用于所述第一链路的上 行或下行的时域资源，所述第二链路的第一时域资源的类型为用于所述第二链路的上行或下行的时域资源。
在一些可能的实现方式中，所述第一指示信息包括以下信息之一：所述第一链路或所述第二链路的第一时域资源在多组候选时域资源中的标识，所述第一链路或所述第二链路的第一时域资源在所述第n+k 0至第n+k 1时间单元中所占的比例信息，所述第一链路的第一时域资源和所述第二链路的第一时域资源在所述第n+k 0至第n+k 1时间单元中的切换位置。
在一些可能的实现方式中，所述第一指示信息用于指示所述第n+k 0至第n+k 1时间单元中的时间单元为所述第一链路或所述第二链路的第一时域资源。
在一些可能的实现方式中，所述收发器还用于发送所述第一链路和/或所述第二链路的状态信息，所述状态信息包括信道状态信息和/或负载信息。
在一些可能的设计中，本申请提供的网络设备可以包含用于执行上述方法设计中网络设备行为相对应的模块。所述模块可以是软件和/或是硬件。
在一些可能的设计中，本申请提供的终端可以包含用于执行上述方法设计中终端行为相对应的模块。所述模块可以是软件和/或是硬件。
本申请的又一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中存储有指令，当其在计算机上运行时，使得计算机执行上述各方面所述的方法。
本申请的又一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各方面所述的方法。
附图说明
图1是本发明实施例的一种系统结构示意图；
图2是根据本发明实施例的资源指示方法的示意性流程图；
图3是根据本发明实施例的接入链路资源的示意图；
图4是根据本发明实施例的资源分组的示意图；
图5是根据本发明实施例的资源分组的另一示意图；
图6是本发明实施例的另一种系统结构示意图；
图7是根据本发明另一实施例的资源指示方法的示意性流程图；
图8是根据本发明另一实施例的资源指示方法的示意性流程图；
图9是根据本发明另一实施例的链路分组的示意图；
图10是根据本发明另一实施例的链路分组的示意图；
图11是根据本发明实施例的网络设备的结构示意图；
图12是根据本发明另一实施例的终端的结构示意图。
具体实施方式
下面将结合附图，对本申请中的技术方案进行描述。
图1示出了本申请的一种可能的系统网络示意图。如图1所示，网络设备(如基站)与用户设备之间的链路中包括至少一个中继节点，为清楚起见，图中只示出一个中继节点。为便于理解下面对本申请中涉及到的一些名词做些说明。
本申请中，名词“网络”和“系统”经常交替使用，但本领域的技术人员可以理解其含义。用户设备(User Equipment，UE)是一种具有通信功能的终端设备，也可以称为终端，可以包括具有无线通信功能的手持设备、车载设备、可穿戴设备、计算设备或连接到无线调制解调器的其它处理设备等。在不同的网络中用户设备可以叫做不同的名称，例如：终端，移动台，用户单元，站台，蜂窝电话，个人数字助理，无线调制解调器，无线通信设备，手持设备，膝上型电脑，无绳电话，无线本地环路台等。为描述方便，本申请中简称为用户设备UE或终端。网络设备可以是基站(base station，BS)、云网络中的无线接入设备或中继站等具有无线收发功能的设备。基站也可称为基站设备，是一种部署在无线接入网用以提供无线通信功能的设备。在不同的无线接入系统中基站的名称可能有所不同，例如在而在通用移动通讯系统(Universal Mobile Telecommunications System，UMTS)网络中基站称为节点B(NodeB),在LTE网络中的基站称为演进的节点B(evolved NodeB，简称：eNB或者eNodeB)，在未来5G系统中可以称为收发节点(Transmission Reception Point，TRP)网络节点或g节点B(g-NodeB，gNB)。
应理解，时间单元可以为符号(symbol)、迷你时隙(mini-slot)、时隙(slot)、子帧(subframe)、帧(frame)、符号的集合、迷你时隙的集合、时隙的集合、子帧的集合或帧的集合等，本发明实施例对此并不限定。当系统中存在多种类型的时间单元时，第一设备还可以向第二设备指示时间单元的类型，例如，指示时间单元为符号、子帧或时隙等。该时间单元的类型也可以是预设的。
本申请的说明书和权利要求书及附图中的术语“第一”和“第二”等是用于区别不同对象，而不是用于描述特定顺序。术语“和/或”仅仅是一种描述关联对象的关联关系，表示可以存在三种关系。例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
由于现有技术中回传链路或接入链路的时域资源是静态配置的周期性的时域资源，导致回传链路或接入链路的资源分配不够灵活，因此当回传链路和接入链路中的任一链路的传输出现瓶颈时，无法为该链路灵活分配资源，进而导致无法及时的解决传输瓶颈问题。本发明实施例提供了一种通信方法，通过在第n时间单元指示第n+k 0至第n+k 1时间单元中的回传链路或接入链路的时域资源，能够动态灵活地为回传链路或接入链路分配时域资源，从而有助于及时解决回传链路或接入链路的传输瓶颈问题。
应注意，本发明实施例中，图1所示中继系统中可以包括一个中继节点，也可以包括多个中继节点。当中继系统中包括多个中继节点时，两个相邻中继节点之间的链路也称为回传链路。
图2是根据本发明实施例的通信方法200的示意性流程图。如图2所示，方法200包括如下内容。
210、第一设备在第n时间单元向第二设备发送第一指示信息，第一指示信息用于指示第n+k 0至第n+k 1时间单元中的第一链路或第二链路的第一时域资源，第一链路为第一设备与第二设备之间的链路，第二链路为第二设备和第三设备之间的链路，k 0为大于或等于0且小于或等于k 1的整数，k 1为整数。
相应地，第二设备接收该第一指示信息，并根据该第一指示信息，在第一链路的第一时域资源上与第一设备进行通信，或在第二链路的第一时域资源上与第三设备进行通信。
在一些实施例中，如果第一指示信息指示第n+k 0至第n+k 1时间单元中的第一链路的时域资源，则第n+k 0至第n+k 1时间单元中除第一链路的时域资源之外的资源为第二链路的时域资源。或者，如果第一指示信息指示第n+k 0至第n+k 1时间单元中的第二链路的时域资源，则第n+k 0至第n+k 1时间单元中除第二链路的时域资源之外的资源为第一链路的时域资源。因此，第二设备根据第一指示信息可以确定第一链路的时域资源和第二链路的时域资源。
第一设备可以为网络设备(如基站)，还可以为链路中的中继节点。第二设备可以为链路中的中继节点，也可以为用户设备。需要说明的是，链路中的中继节点也可以是实现中继功能的网络设备(如基站)、UE或其他设备。
第一链路可以为第一设备与第二设备之间的回传链路。第二链路可以为第二设备和第三设备之间的回传链路或接入链路。当第三链路为用户设备时，第二链路为接入链路。
本发明实施例中，通过在第n时间单元指示第n+k 0至第n+k 1时间单元中的回传链路或接入链路的时域资源，能够动态灵活地为回传链路或接入链路分配时域资源，从而有助于及时解决回传链路或接入链路的传输瓶颈问题。
需要说明的是，k 0和k 1的取值可以是预定义的，也可以是由基站配置的，也可以是由高层信令配置的。在一些实施例中，k 1大于或等于2*k 0。在一些实施例中，k 0大于或等于第一链路的最大调度时间。可选的，第二设备可以上报k 0和/或k 1的值，或所述第n+k 0至第n+k 1时间单元的范围的请求，或第一链路或第二链路的第一时域资源的位置的请求，第二设备通过上报上述信息来上报第二设备的调度处理能力。
还需要说明的是，第一设备还可以为第二设备分配频域资源和/或码域资源，具体可以参考现有技术，本发明实施例对此不做限定。
可选地，第一指示信息可以承载于高层信令或下行控制信息(Downlink Control Information，DCI)中，还可以承载于高层信令和DCI的组合中。例如，高层信令可以配置多组候选时域资源，DCI指示该多组候选时域资源中的一组候选时域资源。或者，一高层信令用于配置多个候选时域资源集合，另一高层信令用于配置其中的一个候选时域资源集合，DCI用于指示该候选时域资源集合中的一组候选时域资源。其中，高层信令可以包括以下任一种：无线资源控制(Radio Resource Control，RRC)信令、系统消息、广播消息和媒体接入控制控制单元(Media Access Control Control Element，MAC CE)。可选地，DCI可以使用第二设备的无线网络临时标识(Radio Network Tempory Identity，RNTI)加扰，这样第二设备根据RNTI可以正确接收DCI。
该RNTI为基站配置给第二设备的。或者，该RNTI为基站配置给第二设备组的，第二设备组内的第二设备具有相同的RNTI。或者，具有中继功能的用户设备的RNTI相同该RNTI为基站配置的或预设的，例如该RNTI为通过广播消息/系统消息配置的，或通信协议预定义的。
该DCI可以承载于中继节点特定的下行控制信道，或用于预配置的下行控制信道，或用户特定下行控制信道。可选地，该DCI或RNTI为具有中继功能的第二设备专用的，当第二设备具有中继功能时才会使用。第一指示信息可以承载于现有格式的DCI中的新增域或字段，或承载于新格式的DCI中。
可选地，当k0＝k1＝0时，第一指示信息可以用于指示第n时间单元中的接入链路的时 域资源。也就是说，第一指示信息还可以用于指示本时间单元中接入链路的时域资源。例如，第一指示信息指示的接入链路的时域资源可以是用于接入链路的下行的时域资源。相应地，用于接入链路的上行反馈的时域资源与用于接入链路的下行的时域资源在时域上的位置可以满足预定义的或配置的关系，则UE在接收到第一指示信息之后，可以确定用于上行反馈的时域资源，如否定应答(Negative-Acknowledgment，NACK)/肯定应答(Acknowledgment，ACK)的时域资源。可选地，如图3所示，用于接入链路的上行反馈的时域资源与用于接入链路的下行的时域资源可以位于不同的时间单元(如slot)上。
可选地，第二链路的时域资源包括第二链路的第一类时域资源和第二链路的第二类时域资源，第二链路的第一类时域资源和第二链路的第二类时域资源在时域上的位置满足预设关系。例如，第二链路的第二类时域资源与第二链路的第一类时域资源之间间隔预设数量的时间单元。第二链路的第一类时域资源和第二链路的第二类时域资源在时域上的位置满足的预设关系可以是预定义的或通过高层信令配置的。第二链路的第二类时域资源与第二链路的第一类时域资源可以为不同的时间单元类型，例如第二链路的第一类时域资源为一个或多个时隙，第二链路的第二类时域资源为一个或多个符号。
第二链路的第二类时域资源用于传输反馈信息，该反馈信息是对第二链路的第一类时域资源中的部分或全部时域资源上传输的信息的反馈。例如，第二链路的第一类时域资源用于接入链路的下行传输，第二链路的第二类时域资源用于接入链路的上行反馈，如用于传输NACK/ACK。
可选地，第一指示信息包括第二链路的第一类时域资源和第二链路的第二类时域资源的指示信息。或者，第一指示信息包括第二链路的第一类时域资源的指示信息，UE可以根据第二链路的第一类时域资源和第二链路的第二类时域资源之间在时域上的位置满足的预设关系，确定第二链路的第二类时域资源。
可选地，第二链路的第二类时域资源的在时域上的长度为预定义的或通过高层信令配置的。
可选地，第一链路的时域资源包括第一链路的第一类时域资源和第一链路的第二类时域资源，第一链路的第一类时域资源和第一链路的第二类时域资源在时域上的位置满足预设关系。例如，第一链路的第二类时域资源与第一链路的第一类时域资源之间间隔预设数量的时间单元。第一链路的第一类时域资源和第一链路的第二类时域资源在时域上的位置满足的预设关系可以是预定义的或通过高层信令配置的。第一链路的第二类时域资源与第一链路的第一类时域资源可以为不同的时间单元类型，例如第一链路的第一类时域资源为一个或多个时隙，第一链路的第二类时域资源为一个或多个符号。
第一链路的第二类时域资源用于传输反馈信息，该反馈信息是对第一链路的第一类时域资源中的部分或全部时域资源上传输的信息的反馈。例如，第一链路的第一类时域资源用于回传链路的下行传输，第一链路的第二类时域资源用于回传链路的上行反馈，如用于传输NACK/ACK，CQI信息反馈，波束扫描信息反馈。
可选地，第一指示信息还可以包括第一链路的第一类时域资源和第一链路的第二类时域资源的指示信息。或者，第一指示信息包括第一链路的第一类时域资源的指示信息，UE可以根据第一链路的第一类时域资源和第一链路的第二类时域资源之间在时域上的位置满足的预设关系，确定第一链路的第二类时域资源。
可选地，第一链路的第二类时域资源的在时域上的长度为预定义的或通过高层信令配置的。可选地，第一指示信息还用于指示第一链路或第二链路的第一时域资源的类型，第一链路的第一时域资源的类型为用于第一链路的上行或下行的时域资源，第二链路资源的类型为用于第二链路的上行或下行的时域资源。换句话说，本发明实施例中，第一设备可以在为第二设备分配时域资源的同时，指示为第二设备分配的时域资源是用于链路的上行传输还是下行传输。
在第一链路的上行、第一链路的下行、第二链路的上行、第二链路的下行这4种传输场景中，第一链路的上行和第二链路的下行均为第二设备发送，第一链路的下行和第二链路的上行均为第二设备接收。
因此，可以将时域资源分为两组，分别用于第二设备的发送和接收：
资源组1：可用于第一链路的上行和第二链路的下行的时域资源；
资源组2：可用于第一链路的下行和第二链路的上行的时域资源。
或者，还可以将时域资源分成两种类型，分别用于第二设备的发送和接收：
类型1：可用于第一链路的上行和第二链路的下行的时域资源；
类型2：可用于第一链路的下行和第二链路的上行的时域资源。
相应地，第一指示信息还可以包括资源组的标识或时域资源的类型，这样第二设备根据资源组的标识或时域资源的类型可以确定第一指示信息指示的时域资源是用于哪种传输场景。
由于在同一资源组或同一资源类型内第二设备无需进行收发切换，因此在同一资源组或同一资源类型内第一链路和第二链路之间的切换可以不需要保护时间，即第二设备都是发送或都是接收。具体地，第一链路的上行和第二链路的下行之间的切换不需要保护时间，第一链路的下行和第二链路的上行之间的切换不需要保护时间。
需要说明的是，本发明实施例对资源组中的资源划分的具体形式不做限定，如图4所示资源组内用于同一链路的上行传输或下行传输的时域资源可以是连续的；或者，如图5所示，资源组内用于同一链路的上行传输或下行传输的时域资源也可以是不连续的，图中GAP(Guard Period)可以表示保护间隔。
可选地，第一指示信息包括第一链路或第二链路的第一时域资源在多组候选时域资源中的标识。例如，可以为第二设备预先配置多组候选时域资源，这样第二设备根据第一链路或第二链路的第一时域资源在该多组候选时域资源中的标识，即可确定第一链路或第二链路的第一时域资源。
应理解，可以预定义或由基站配置k 0和k 1的取值，这样第二设备可以获知第一指示信息指示的是第n+k 0至第n+k 1时间单元内的时域资源。还可以预定义或由基站配置第一链路的时域资源与第二链路的时域资源在时域上的先后关系，例如，第一链路的时域资源早于第二链路的时域资源，或第二链路的时域资源早于第一链路的时域资源。
可选地，第一指示信息可以包括以下信息之一：第一链路或第二链路的第一时域资源在第n+k 0至第n+k 1时间单元中所占的比例信息，第一链路和第二链路的第一时域资源在第n+k 0至第n+k 1时间单元中的切换位置。这样，第二设备根据第一指示信息可以确定第一链路的时域资源或第二链路的时域资源。
在第n+k 0至第n+k 1时间单元中第一链路的第一时域资源和第二链路的第一时域资源 之间可以设置保护间隔，该保护间隔的长度可以是由高层信令配置的或预定义的。例如，该保护间隔的长度可以为参考子载波间隔，或2倍的参考子载波间隔，或4倍的参考子载波间隔等，参考子载波间隔为切换前传输所采用的子载波间隔，或基站配置的一种子载波间隔。例如，当第一链路的第一时域资源切换为第二链路的第一时域资源时，该保护间隔位于第一链路的第一时域资源中的最后一个时间单元中的最后至少一个符号上。或者，第二链路的第一时域资源切换为第一链路的第一时域资源时，该保护间隔位于第二链路的第一时域资源中的最后一个时间单元中的最后至少一个符号上。
可选地，第一指示信息用于指示第n+k 0至第n+k 1时间单元中的时间单元为第一链路或第二链路的第一时域资源。具体地，第一指示信息可以采用位图的方式指示第一链路或第二链路的第一时域资源。例如，假设第n+k 0至第n+k 1时间单元为10个时间单元，且在位图中用1表示对应的时间单元为第一链路的第一时域资源，则位图0010100101表示这10个时间单元中的第3个、第5个、第8个和第10时间单元为第一链路的第一时域资源。
可选地，在210之前，方法200还可以包括：220、第二设备向第一设备发送第一链路的状态信息和/或第二链路的状态信息。相应地，第一设备接收该第一链路和/第二链路的状态信息。
其中，该状态信息可以包括信道状态信息和/或负载信息。第一设备可以根据链路的状态信息确定该链路的时频资源，这样有利于提高链路传输的可靠性，还有利于提高资源的利用率。例如，第一设备可以根据链路的状态信息以最优化小区吞吐率等原则，确定该链路的时频资源。
可选地，在210之前，方法200还可以包括：
230、第一设备向第二设备发送第二指示信息，第二指示信息指示第一链路和/或第二链路的第二时域资源，第一指示信息指示的第一链路或第二链路的第一时域资源位于第n+k 0至第n+k 1时间单元中第二时域资源之外的位置。相应地，第二设备接收第二指示信息。
可选地，第二指示信息还可以指示该指定时域资源的周期。第二指示信息可以承载于高层信令或DCI中。
在一些实施例中，第二指示信息承载于高层信令中，第一指示信息承载于DCI中，这样可以通过高层信令为第一链路和/或第二链路半静态配置部分时域资源，并通过动态信令为第一链路或第二链路动态配置另一部分时域资源，这样的配置更加灵活，有利于及时解决回传链路或接入链路的传输瓶颈问题。
在一些实施例中，第二信令指示的资源可以用于传输一些周期性的参考信号或信道。
在一些实施例中，部分固定用于第二链路或第一链路的资源还可以是预定义的，这种情况下，第一设备无需向第二设备发送第二指示信息。比如，第一链路的同步信号所在的时间单元就固定为第一链路使用。
应注意，若第二指示信息指示第一链路的第二时域资源，则该第二时域资源不能用于第一链路的传输；若第二指示信息指示第二链路的第二时域资源，则该第二时域资源不能用于第一链路的传输。
还应注意，第一设备还可以向第二设备指示不能用于第一链路和/或第二链路的时域资源。
可选地，在210之前，方法200还可以包括：
240、第一设备向第二设备发送第三指示信息，第三指示信息用于指示第一时域资源集合和第二时域资源集合，第一时域资源集合内的时域资源用于第一链路的上行和第二链路的下行，第二时域资源集合用于第一链路的下行和第二链路的上行。相应地，第二设备接收该第三指示信息。需要说明的是，这里的第一时域资源集合和第二时域资源集合的划分可以参考前文中资源组1和资源组2的划分，或者时域资源的类型1和类型的划分。因此，同一时域资源集合内第二设备无需进行收发切换。
第三指示信息可以承载于高层信令中和/或DCI中。
第二设备根据第三指示可以确定第一指示信息指示的第一链路或第二链路的第一时域资源的用于第一链路或第二链路的上行传输，还是用于第一链路或第二链路的下行传输。
换句话说，本发明实施例中，通过为第二设备预先配置两种的时域资源集合，使得第二设备能够确定分配的时域资源是用于链路的上行传输还是下行传输，同时第二设备在第一链路和第二链路的切换之间还不需要停留保护时间。
需要说明的是，本发明实施例中的下行方向指的是DCI传输的方向。例如，第一设备向第二设备发送DCI，则第一设备向第二设备传输为下行传输，第二设备向第一设备传输为上行传输。
可选地，在210之前，方法200还可以包括：250、第二设备向第一设备发送第一资源请求消息，第一资源请求消息用于请求第一链路或第二链路的时频资源。相应地，第一设备接收该第一资源请求消息。在210中，第一设备可以根据接收到的第一资源请求消息向第二设备发送第一指示信息。
应理解，图2所示方法200中，220、230、240和250均为可选过程，本发明实施例中可以不执行220～250中的任一过程，也可以执行其中的部分或全部过程。
在一些实施例中，如图6所示，第二设备还与第四设备进行通信，第四设备也可以为第二链路分配时域资源。第二设备可以将第四设备为第二链路分配的时域资源通知第一设备，第一设备可以根据第四设备分配的时频资源为第二链路分配时域资源，这样有助于避免由于第一设备和第四设备各自分配的第二链路的时域资源不同，使得第二设备无法确定使用哪些时域资源进行第二链路传输。具体地，第一资源请求消息还可以用于指示第四设备为第二链路分配的时域资源；或者，第一资源请求消息用于指示第二链路所需的时域资源。第二链路所需的时域资源可以是第二设备根据第四设备为第二链路分配的时频资源确定的。
需要说明的是，上述实施例中的第一指示信息、第二指示信息和第三指示信息可以是分开发送的，也可以是同时发送的。例如，第一指示信息、第二指示信息和第三指示信息可以承载于不同的信令或配置信息中，也可以承载于同一信令或配置信息的不同字段中。
图7是根据本发明另一实施例的通信方法700的示意性流程图。如图7所示，方法700可以包括如下内容。
710、第二设备向第一设备发送上报信息，上报信息用于指示第二设备支持的空分复用(Space Division Multiplexing，SDM)或频分复用(Frequency Division Multiplexing，FDM)类型。相应地，第一设备接收该上报信息。
第二设备支持的SDM类型包括以下至少一种或以下至少两种的组合：第一链路上行与第二链路下行SDM，第一链路下行与第二链路上行SDM，第一链路上行与第二链路上行SDM，第一链路下行与第二链路下行SDM，以及不支持SDM。如下表1所示。
第二设备支持的FDM类型包括以下至少一种或以下至少两种的组合：第一链路上行与第二链路下行FDM，第一链路下行与第二链路上行FDM，第一链路上行与第二链路上行FDM，第一链路下行与第二链路下行FDM，以及不支持FDM。如下表1所示。
表1
Figure PCTCN2018082126-appb-000001
第一链路为第一设备与第二设备之间的链路，第二链路为第二设备和第三设备之间的链路。
需要说明的是，本发明实施例中的下行方向指的是DCI传输的方向。例如，第一设备向第二设备发送DCI，则第一设备向第二设备传输为下行传输，第二设备向第一设备传输为上行传输。
本发明实施例中，空分复用是指采用相同的时频资源以及相同或非正交的码域资源，并在不同的空间方向上进行传输，或采用不同的接收预编码和/或发送预编码进行传输，或采用不同的接收波束和/或发送波束进行传输。
本发明实施例中，频分复用是指采用相同的时域资源以及相同或非正交的码域资源，并在不同的频域资源上进行传输。
根据第二设备支持的SDM或FDM的类型，第一设备可以为第二设备分配合适的SDM或FDM方式，还可以更加合理地分配链路资源。
例如，第一设备为基站，第二设备为中继节点，如果中继节点不支持空分复用，则基站需要时分和/或频分地分配回传链路和接入链路的资源；如果中继节点支持空分复用，则基站可以分配大部分资源用于第一链路和第二链路空分传输。例如，如果中继节点仅支持同时接收或同时发送的空分复用，即仅支持SDM类型1～2，则基站可以分配资源用于第一链路和第二链路类型1～2的空分复用传输；如果中继节点支持类型1～4种空分复用方式，则基站可以分配资源用于第一链路和第二链路类型1～4的空分复用传输。
因此，本发明实施例中，通过第二设备向第一设备上报自身支持的SDM或FDM能力，如SDM或FDM类型，有利于第一设备更加合理地为链路分配资源。
可选地，方法700还可以包括：720、第一设备向第二设备发送第一指示信息，第一指示信息用于指示第二设备使用的SDM或FDM类型。相应地，第二设备接收到该第一指示信息之后，根据第一指示信息指示的空分复用类型进行空分复用传输，或者根据第一指示信息指示的频分复用类型进行频分复用传输。
例如，第一设备可以根据第一链路和第二链路上传输的信息的特点，确定第二设备使用的空分复用类型。例如，如果第一链路上传输的是可靠性要求较高的信息，如PDCCH，则第一设备可以指示第二设备仅开启上行传输的空分复用。这样有利于提高链路传输的可靠性，减少链路之间的干扰。
第一指示信息可以承载于高层信令和/或DCI中。
可选地，方法700还可以包括：第一设备向第二设备发送第二指示信息，第二指示信息用于指示以下信息之一：可用于第一链路和第二链路间空分复用的资源，可用于第一链路和第二链路间频分复用的资源，不可用于第一链路和第二链路间空分复用和/或频分复用的资源。相应地，第二设备接收该第二指示信息。通过向第二设备指示能够用于空分复用或不能用空分复用的资源，这样有利于减少链路之间的干扰。
第二指示信息可以承载于高层信令和/或DCI中。
可选地，方法700还可以包括：第一设备向第二设备发送第三指示信息，第三指示信息用于指示以下至少一种资源集合：不能用于第一链路或第二链路的资源集合，第二链路的参考信号、控制信道和/或共享信道的候选资源集合，以及第一链路的参考信号、控制信道和/或共享信道的候选资源集合。相应地，第二设备接收到第三指示信息。第二设备可以根据该第三指示信息确定上述至少一种资源集合。第三指示信息可以承载于高层信令和/或DCI中。
或者，上述至少一种资源集合与链路类型具有对应关系，第二设备还可以根据链路类型确定上述至少一种资源集合。
第二设备根据上述至少一种资源集合进行传输，有利于避免一条链路的控制信道与另一条链路的共享信道或参考信号之间的干扰。
需要说明的是，第一链路和第二链路进行空分复用或频分复用传输时，其中一条链路传输的导频或控制信道的资源与另一条链路的资源正交，这样能够避免另一条链路对当前链路正在传输的控制信道或导频造成干扰。
可选地，还可以预定义不同的链路类型对应的资源，这样第二设备根据链路类型即可确定链路的资源。这里的链路类型指的是接入链路还是回传链路。
上报信息用于指示第二设备支持的SDM类型时，本发明实施例中的资源指的是时域、频域和/或码域资源。上报信息用于指示第二设备支持的FDM类型时，本发明实施例中的资源指的是时域和/或码域资源。
需要说明的是，上述实施例中的第一指示信息、第二指示信息和第三指示信息可以是分开发送的，也可以是同时发送的。例如，第一指示信息、第二指示信息和第三指示信息可以承载于不同的信令或配置信息中，也可以承载于同一信令或配置信息的不同字段中。
图8是根据本发明另一实施例的通信方法800的示意性流程图。如图8所示，方法800可以包括如下内容。
810、第一设备确定第二设备所在链路的多个链路分组，并根据该多个链路分组，确定回传链路和接入链路的资源，同一链路分组中的链路使用不同的波束进行传输，同一链路分组中的链路不包括相同的传输节点。
如图9和图10所示，链路分组1或链路分组2中的链路不包括相同的传输节点。这样链路分组1和链路分组2中的链路互不干扰，可以同时进行传输。图9所示例子中，属 于链路分组1中的具有完全无重叠节点的回传链路1和接入链路可以进行SDM传输，有重叠节点的回传链路1和回传链路2，或者回传链路2和接入链路需要进行TDM传输。图10所示例子中，所有的中继节点都进行SDM传输。另外，图中Control/RS表示控制信号或参考信号，DL Control/RS表示下行控制信号或参考信号，UL Control/RS表示上行控制信号或参考信号。
820、第一设备向第二设备发送指示信息，该指示信息用于指示回传链路和接入链路的资源。
相应地，第二设备接收该指示信息，并根据回传链路的资源进行回传链路传输，根据接入链路的资源进行接入链路传输。
这里的资源指的是时域、频域和/或码域资源。第一设备可以为网络设备(如基站)或中继节点。第二设备可以为中继节点或UE。
本发明实施例中，同一链路分组中的链路使用不同的波束进行传输，并根据链路的分组情况确定回传链路和接入链路的资源，使得回传链路和接入链路的资源分配更加灵活，并有利于提高资源的利用率。
由于同一链路分组中的链路不包括相同的传输节点，则同一链路分组中的链路可以复用相同的资源进行SDM传输，从而有利于提高资源的利用率。
还应理解，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本发明实施例的实施过程构成任何限定。
本发明实施例进一步给出实现上述方法实施例中各步骤及方法的装置实施例。前述方法实施例的方法、步骤、技术细节以及技术效果等同样适用于装置实施例，后续不再详细说明。
图11示出了一种网络设备10的结构示意图，该网络设备可应用于如图1所示的系统。网络设备10包括一个或多个远端射频单元(remote radio unit,RRU)101和一个或多个基带单元(baseband unit，BBU)102。RRU 101可以称为收发单元、收发机、收发电路或者收发器等等，其可以包括至少一个天线1011和射频单元1012。RRU 101分主要用于射频信号的收发以及射频信号与基带信号的转换，例如用于向另一设备(如中继节点或终端)发送上述实施例中的信令指示。BBU 102部分主要用于进行基带处理，对设备进行控制等。RRU 101与BBU 102可以是物理上设置在一起，也可以物理上分离设置的，即分布式基站。
BBU 102为网络设备的控制中心，也可以称为处理单元，主要用于完成基带处理功能，如信道编码，复用，调制，扩频等等。在一个示例中，BBU 102可以由一个或多个单板构成，多个单板可以共同支持单一接入制式的无线接入网(如5G网络)，也可以分别支持不同接入制式的无线接入网。BBU 102还包括存储器1021和处理器1022。存储器1021用以存储必要的指令和数据。处理器1022用于控制网络设备进行必要的动作。存储器1021和处理器1022可以服务于一个或多个单板。也就是说，可以每个单板上单独设置存储器和处理器。也可以是多个单板公用相同的存储器和处理器。此外每个单板上还设置有必要的电路。
上述网络设备可以用于实现前述图2所示方法实施例中由第一设备执行的方法，具体的：
处理器，用于生成第一指示信息，第一指示信息用于指示第n+k 0至第n+k 1时间单元中的第一链路或第二链路的第一时域资源，第一链路为第一设备与第二设备之间的链路，第二链路为第二设备和第三设备之间的链路，k 0为大于或等于0且小于或等于k 1的整数，k 1为整数；
收发器，用于发送所述第一指示信息；
可选地，收发器还用于发送第二指示信息，第二指示信息指示第一链路和/或第二链路的第二时域资源，第一指示信息指示的第一链路或第二链路的第一时域资源位于第n+k 0至第n+k 1时间单元中第二时域资源之外的位置；
可选地，收发器还用于发送第三指示信息，第三指示信息用于指示第一时域资源集合和第二时域资源集合，第一时域资源集合内的时域资源用于第一链路的上行和第二链路的下行，第二时域资源集合用于第一链路的下行和第二链路的上行。
或者，上述网络设备还可以用于实现前述图2所示方法实施例中由第二设备执行的方法，具体的：
处理器，用于控制收发器收发信号。
收发器，用于接收第一指示信息，第一指示信息用于指示第n+k 0至第n+k 1时间单元中的第一链路或第二链路的第一时域资源，第一链路为第一设备与第二设备之间的链路，第二链路为第二设备和第三设备之间的链路，k 0为大于或等于0且小于或等于k 1的整数，k 1为整数。
可选地，收发器还用于发送第一链路的状态信息和/或第二链路的状态信。
可选地，收发器还用于接收第二指示信息，第二指示信息指示第一链路和/或第二链路的第二时域资源，第一指示信息指示的第一链路或第二链路的第一时域资源位于第n+k 0至第n+k 1时间单元中第二时域资源之外的位置。
可选的，收发器还用于接收第三指示信息，第三指示信息用于指示第一时域资源集合和第二时域资源集合，第一时域资源集合内的时域资源用于第一链路的上行和第二链路的下行，第二时域资源集合用于第一链路的下行和第二链路的上行。
或者，上述网络设备还可以用于实现前述图7所示方法实施例中由第一设备执行的方法，具体的：
收发器，用于接收上报信息，该上报信息用于指示第二设备支持的空分复用类型；
处理器，用于根据上报信息确定第二设备支持的空分复用类型。
可选地，收发器还用于发送第一指示信息，第一指示信息用于指示第二设备使用的空分复用类型。
可选地，收发器还用于发送第二指示信息，第二指示信息用于指示以下信息之一：可用于第一链路和第二链路间空分复用的资源，可用于第一链路和第二链路间频分复用的资源，不可用于第一链路和第二链路间空分复用和频分复用的资源。
可选地，收发器还用于发送第三指示信息，第三指示信息用于指示以下至少一种资源集合：不能用于接入链路的资源集合，第二链路的参考信号、控制信道和/或共享信道的候选资源集合，以及第一链路的参考信号、控制信道和/或共享信道的候选资源集合。
或者，上述网络设备还可以用于实现前述图8所示方法实施例中由第一设备执行的方法，具体的：
处理器，用于确定第二设备所在链路的多个链路分组，并根据该多个链路分组，确定回传链路和接入链路的资源；
收发器，用于发送指示信息，该指示信息用于指示回传链路和接入链路的资源。
图12提供了一种终端20的结构示意图。该终端可适用于图1所示出的系统中。为了便于说明，图12仅示出了终端20的主要部件。如图12所示，终端20包括处理器、存储器、控制电路或天线以及输入输出装置。处理器主要用于对通信协议以及通信数据进行处理，以及对整个终端进行控制，执行软件程序，处理软件程序的数据。存储器主要用于存储软件程序和数据，例如存储上述实施例中所描述的码本。控制电路主要用于基带信号与射频信号的转换以及对射频信号的处理。控制电路和天线一起也可以叫做收发器，主要用于收发电磁波形式的射频信号。具输入输出装置，例如触摸屏、显示屏或键盘等主要用于接收用户输入的数据以及对用户输出数据。
当终端开机后，处理器可以读取存储单元中的软件程序，解释并执行软件程序的指令，处理软件程序的数据。当需要通过无线发送数据时，处理器对待发送的数据进行基带处理后，输出基带信号至射频电路，射频电路将基带信号进行射频处理后将射频信号通过天线以电磁波的形式向外发送。当有数据发送到终端时，射频电路通过天线接收到射频信号，将射频信号转换为基带信号，并将基带信号输出至处理器，处理器将基带信号转换为数据并对该数据进行处理。
本领域技术人员可以理解，为了便于说明，图12仅示出了一个存储器和处理器。在实际的终端中，可以存在多个处理器和存储器。存储器也可以称为存储介质或者存储设备等，本发明实施例对此不做限制。
作为一种可选的实现方式，处理器可以包括基带处理器和中央处理器，基带处理器主要用于对通信协议以及通信数据进行处理，中央处理器主要用于对整个终端进行控制，执行软件程序，处理软件程序的数据。图12中的处理器集成了基带处理器和中央处理器的功能，本领域技术人员可以理解，基带处理器和中央处理器也可以是各自独立的处理器，通过总线等技术互联。本领域技术人员可以理解，终端可以包括多个基带处理器以适应不同的网络制式，终端可以包括多个中央处理器以增强其处理能力，终端的各个部件可以通过各种总线连接。基带处理器也可以表述为基带处理电路或者基带处理芯片。中央处理器也可以表述为中央处理电路或者中央处理芯片。对通信协议以及通信数据进行处理的功能可以内置在处理器中，也可以以软件程序的形式存储在存储单元中，由处理器执行软件程序以实现基带处理功能。
示例性的，在发明实施例中，可以将具有收发功能的天线和控制电路视为终端20的收发单元201，将具有处理功能的处理器视为终端20的处理单元202。如图12所示，终端20包括收发单元201和处理单元202。收发单元也可以称为收发器、收发机或收发装置等。可选的，可以将收发单元201中用于实现接收功能的器件视为接收单元，将收发单元201中用于实现发送功能的器件视为发送单元，即收发单元201包括接收单元和发送单元。示例性的，接收单元也可以称为接收机、接收器或接收电路等，发送单元可以称为发射机、发射器或者发射电路等。
上述终端可以用于实现前述图2所示方法实施例中由第二设备执行的方法，具体的：
处理器，用于控制收发器收发信号。
收发器，用于接收第一指示信息，第一指示信息用于指示第n+k 0至第n+k 1时间单元中的第一链路或第二链路的第一时域资源，第一链路为第一设备与第二设备之间的链路，第二链路为第二设备和第三设备之间的链路，k 0为大于或等于0且小于或等于k 1的整数，k 1为整数。
可选的，收发器还用于发送第一链路的状态信息和/或第二链路的状态信息。
可选地，收发器还用于接收第二指示信息，第二指示信息指示第一链路和/或第二链路的第二时域资源，第一指示信息指示的第一链路或第二链路的第一时域资源位于第n+k 0至第n+k 1时间单元中第二时域资源之外的位置。
可选的，收发器还用于接收第三指示信息，第三指示信息用于指示第一时域资源集合和第二时域资源集合，第一时域资源集合内的时域资源用于第一链路的上行和第二链路的下行，第二时域资源集合用于第一链路的下行和第二链路的上行。
或者，上述终端可以用于实现前述图7所示方法实施例中由第二设备执行的方法，具体的：
处理器，用于生成上报信息，该上报信息用于指示终端支持的空分复用类型；
收发器，用于发送该上报信息。
可选地，收发器还用于接收第一指示信息，第一指示信息用于指示第二设备使用的空分复用类型。
可选地，收发器还用于接收第二指示信息，第二指示信息用于指示以下信息之一：可用于第一链路和第二链路间空分复用的资源，可用于第一链路和第二链路间频分复用的资源，不可用于第一链路和第二链路间空分复用和频分复用的资源。
可选地，收发器还用于接收第三指示信息，第三指示信息用于指示以下至少一种资源集合：不能用于接入链路的资源集合，第二链路的参考信号、控制信道和/或共享信道的候选资源集合，以及第一链路的参考信号、控制信道和/或共享信道的候选资源集合。
或者，上述网络设备还可以用于实现前述图8所示方法实施例中由第二设备执行的方法，具体的：
收发器，用于接收指示信息，该指示信息用于指示回传链路和接入链路的资源；
处理器，用于根据回传链路和接入链路的资源，控制收发器收发信号。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本发明实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘(Solid State Disk，SSD))等。

Claims (28)

  1. 一种资源指示方法，其特征在于，包括：
    第一设备在第n时间单元向第二设备发送第一指示信息，所述第一指示信息用于指示第n+k 0至第n+k 1时间单元中的第一链路或第二链路的第一时域资源，所述第一链路为所述第一设备与所述第二设备之间的链路，所述第二链路为所述第二设备和第三设备之间的链路，k 0为大于或等于0且小于或等于k 1的整数，k 1为整数。
  2. 根据权利要求1所述的方法，其特征在于，还包括：
    所述第一设备向所述第二设备发送第二指示信息，所述第二指示信息用于指示所述第一链路和/或所述第二链路的第二时域资源，所述第一指示信息指示的所述第一链路或所述第二链路的第一时域资源位于所述第n+k 0至第n+k 1时间单元中所述第二时域资源之外的位置。
  3. 根据权利要求1或2所述的方法，其特征在于，
    所述第二链路的时域资源包括第一类时域资源和所述第二链路的第二类时域资源，所述第二链路的第一类时域资源和所述第二链路的第二类时域资源在时域上的位置满足预设关系，所述第二链路的第二类时域资源用于传输反馈信息，所述反馈信息是对所述第二链路的第一类时域资源中的部分或全部时域资源上传输的信息的反馈。
  4. 根据权利要求1至3中任一项所述的方法，其特征在于，还包括：
    所述第一设备向所述第二设备发送第三指示信息，第三指示信息用于指示第一时域资源集合和第二时域资源集合，所述第一时域资源集合内的时域资源用于所述第一链路的上行和所述第二链路的下行，所述第二时域资源集合用于所述第一链路的下行和所述第二链路的上行。
  5. 根据权利要求1至4中任一项所述的方法，其特征在于，
    所述第一指示信息包括以下信息之一：所述第一链路或所述第二链路的第一时域资源在多组候选时域资源中的标识，所述第一链路或所述第二链路的第一时域资源在所述第n+k 0至第n+k 1时间单元中所占的比例信息，所述第一链路和所述第二链路的第一时域资源在所述第n+k 0至第n+k 1时间单元中的切换位置。
  6. 根据权利要求1至5中任一项所述的方法，其特征在于，
    所述第一指示信息用于指示所述第n+k 0至第n+k 1时间单元中的时间单元为所述第一链路或所述第二链路的第一时域资源。
  7. 根据权利要求1至6中任一项所述的方法，其特征在于，还包括：
    所述第一设备接收所述第二设备发送的所述第一链路和/或所述第二链路的状态信息，所述状态信息包括信道状态信息和/或负载信息。
  8. 一种资源指示方法，其特征在于，包括：
    第二设备接收第一设备在第n时间单元发送的第一指示信息，所述第一指示信息用于指示第n+k 0至第n+k 1时间单元中的第一链路或第二链路的第一时域资源，所述第一链路为所述第一设备与所述第二设备之间的链路，所述第二链路为所述第二设备和第三设备之间的链路，k 0为大于或等于0且小于或等于k 1的整数，k 1为整数。
  9. 根据权利要求8所述的方法，其特征在于，还包括：
    所述第二设备接收所述第一设备发送的第二指示信息，所述第二指示信息用于指示第一链路和/或第二链路的第二时域资源，所述第一指示信息指示的所述第一链路或所述第二链路的第一时域资源位于所述第n+k 0至第n+k 1时间单元中所述第二时域资源之外的位置。
  10. 根据权利要求8或9所述的方法，其特征在于，
    所述第二链路的时域资源包括第二链路的第一类时域资源和第二链路的第二类时域资源，所述第二链路的第一类时域资源和所述第二链路的第二类时域资源在时域上的位置满足预设关系，所述第二链路的第二类时域资源用于传输反馈信息，所述反馈信息是对所述第二链路的第一类时域资源中的部分或全部时域资源上传输的信息的反馈。
  11. 根据权利要求8至10中任一项所述的方法，其特征在于，
    所述第一指示信息还用于指示所述第一链路或所述第二链路的第一时域资源的类型，所述第一链路的第一时域资源的类型为用于所述第一链路的上行或下行的时域资源，所述第二链路的第一时域资源的类型为用于所述第二链路的上行或下行的时域资源。
  12. 根据权利要求8至11中任一项所述的方法，其特征在于，
    所述第一指示信息包括以下信息之一：所述第一链路或所述第二链路的第一时域资源在多组候选时域资源中的标识，所述第一链路或所述第二链路的第一时域资源在所述第n+k 0至第n+k 1时间单元中所占的比例信息，所述第一链路的第一时域资源和所述第二链路的第一时域资源在所述第n+k 0至第n+k 1时间单元中的切换位置。
  13. 根据权利要求8至11中任一项所述的方法，其特征在于，
    所述第一指示信息用于指示所述第n+k 0至第n+k 1时间单元中的时间单元为所述第一链路或所述第二链路的第一时域资源。
  14. 根据权利要求8至13中任一项所述的方法，其特征在于，还包括：
    所述第二设备向所述第一设备发送所述第一链路和/或所述第二链路的状态信息，所述状态信息包括信道状态信息和/或负载信息。
  15. 一种通信设备，其特征在于，包括：
    处理器，用于生成第一指示信息，所述第一指示信息用于指示第n+k 0至第n+k 1时间单元中的第一链路或第二链路的第一时域资源，所述第一链路为所述第一设备与所述第二设备之间的链路，所述第二链路为所述第二设备和第三设备之间的链路，k 0为大于或等于0且小于或等于k 1的整数，k 1为整数；
    收发器，用于在第n时间单元发送所述第一指示信息。
  16. 根据权利要求15所述的通信设备，其特征在于，
    所述处理器还用于生成第二指示信息，所述第二指示信息用于指示所述第一链路和/或所述第二链路的第二时域资源，所述第一指示信息指示的所述第一链路或所述第二链路的第一时域资源位于所述第n+k 0至第n+k 1时间单元中所述第二时域资源之外的位置；
    所述收发器还用于发送所述第二指示信息。
  17. 根据权利要求15或16所述的通信设备，其特征在于，
    所述第二链路的时域资源包括第一类时域资源和所述第二链路的第二类时域资源，所述第二链路的第一类时域资源和所述第二链路的第二类时域资源在时域上的位置满足预 设关系，所述第二链路的第二类时域资源用于传输反馈信息，所述反馈信息是对所述第二链路的第一类时域资源中的部分或全部时域资源上传输的信息的反馈。
  18. 根据权利要求15至17中任一项所述的通信设备，其特征在于，
    所述收发器还用于发送第三指示信息，第三指示信息用于指示第一时域资源集合和第二时域资源集合，所述第一时域资源集合内的时域资源用于所述第一链路的上行和所述第二链路的下行，所述第二时域资源集合用于所述第一链路的下行和所述第二链路的上行。
  19. 根据权利要求15至18中任一项所述的通信设备，其特征在于，
    所述第一指示信息包括以下信息之一：所述第一链路或所述第二链路的第一时域资源在多组候选时域资源中的标识，所述第一链路或所述第二链路的第一时域资源在所述第n+k 0至第n+k 1时间单元中所占的比例信息，所述第一链路和所述第二链路的第一时域资源在所述第n+k 0至第n+k 1时间单元中的切换位置。
  20. 根据权利要求15至19中任一项所述的通信设备，其特征在于，
    所述第一指示信息用于指示所述第n+k 0至第n+k 1时间单元中的时间单元为所述第一链路或所述第二链路的第一时域资源。
  21. 根据权利要求15至20中任一项所述的通信设备，其特征在于，
    所述收发器还用于接收所述第二设备发送的所述第一链路和/或所述第二链路的状态信息，所述状态信息包括信道状态信息和/或负载信息。
  22. 一种通信设备，其特征在于，包括：
    收发器，用于接收第一指示信息，所述第一指示信息用于指示第n+k 0至第n+k 1时间单元中的第一链路或第二链路的第一时域资源，所述第一链路为所述第一设备与所述第二设备之间的链路，所述第二链路为所述第二设备和第三设备之间的链路，k 0为大于或等于0且小于或等于k 1的整数，k 1为整数。
  23. 根据权利要求22所述的通信设备，其特征在于，
    所述收发器还用于接收第二指示信息，所述第二指示信息用于指示第一链路和/或第二链路的第二时域资源，所述第一指示信息指示的所述第一链路或所述第二链路的第一时域资源位于所述第n+k 0至第n+k 1时间单元中所述第二时域资源之外的位置。
  24. 根据权利要求22或23所述的通信设备，其特征在于，
    所述第二链路的时域资源包括第二链路的第一类时域资源和第二链路的第二类时域资源，所述第二链路的第一类时域资源和所述第二链路的第二类时域资源在时域上的位置满足预设关系，所述第二链路的第二类时域资源用于传输反馈信息，所述反馈信息是对所述第二链路的第一类时域资源中的部分或全部时域资源上传输的信息的反馈。
  25. 根据权利要求22至24中任一项所述的通信设备，其特征在于，
    所述第一指示信息还用于指示所述第一链路或所述第二链路的第一时域资源的类型，所述第一链路的第一时域资源的类型为用于所述第一链路的上行或下行的时域资源，所述第二链路的第一时域资源的类型为用于所述第二链路的上行或下行的时域资源。
  26. 根据权利要求22至25中任一项所述的通信设备，其特征在于，
    所述第一指示信息包括以下信息之一：所述第一链路或所述第二链路的第一时域资源在多组候选时域资源中的标识，所述第一链路或所述第二链路的第一时域资源在所述第n+k 0至第n+k 1时间单元中所占的比例信息，所述第一链路的第一时域资源和所述第二链 路的第一时域资源在所述第n+k 0至第n+k 1时间单元中的切换位置。
  27. 根据权利要求22至25中任一项所述的通信设备，其特征在于，
    所述第一指示信息用于指示所述第n+k 0至第n+k 1时间单元中的时间单元为所述第一链路或所述第二链路的第一时域资源。
  28. 根据权利要求22至27中任一项所述的通信设备，其特征在于，
    所述收发器还用于发送所述第一链路和/或所述第二链路的状态信息，所述状态信息包括信道状态信息和/或负载信息。
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