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WO2018177230A1 - 一种调度请求的传输方法及装置 - Google Patents

一种调度请求的传输方法及装置 Download PDF

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Publication number
WO2018177230A1
WO2018177230A1 PCT/CN2018/080402 CN2018080402W WO2018177230A1 WO 2018177230 A1 WO2018177230 A1 WO 2018177230A1 CN 2018080402 W CN2018080402 W CN 2018080402W WO 2018177230 A1 WO2018177230 A1 WO 2018177230A1
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WIPO (PCT)
Prior art keywords
terminal device
resource
beam pairs
dedicated
uplink beam
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
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PCT/CN2018/080402
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English (en)
French (fr)
Inventor
向高
黄煌
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to KR1020197029749A priority Critical patent/KR20190125442A/ko
Priority to EP18777399.9A priority patent/EP3592089B1/en
Publication of WO2018177230A1 publication Critical patent/WO2018177230A1/zh
Priority to US16/588,582 priority patent/US11109402B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0695—Hybrid systems, i.e. switching and simultaneous transmission using beam selection
    • H04B7/06952—Selecting one or more beams from a plurality of beams, e.g. beam training, management or sweeping
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0695—Hybrid systems, i.e. switching and simultaneous transmission using beam selection
    • H04B7/06952—Selecting one or more beams from a plurality of beams, e.g. beam training, management or sweeping
    • H04B7/0696—Determining beam pairs
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0868—Hybrid systems, i.e. switching and combining
    • H04B7/088—Hybrid systems, i.e. switching and combining using beam selection
    • 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
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space
    • 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
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • 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
    • H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/005—Transmission of information for alerting of incoming communication
    • 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
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • 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
    • H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
    • 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
    • H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data 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
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/30—Connection release
    • H04W76/34—Selective release of ongoing connections
    • H04W76/36—Selective release of ongoing connections for reassigning the resources associated with the released connections
    • 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
    • H04L5/0078—Timing of allocation
    • H04L5/008—Timing of allocation once only, on installation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present application relates to the field of communications technologies, and in particular, to a method and an apparatus for transmitting a scheduling request.
  • the 5G communication system will adopt a higher carrier frequency than LTE (Long Term Evolution), such as 38 GHz, 72 GHz, etc., to achieve wireless communication with larger bandwidth and higher transmission rate. Due to the high carrier frequency, the wireless signal it transmits undergoes more severe fading during spatial propagation, and it is difficult to detect the wireless signal even at the receiving end.
  • LTE Long Term Evolution
  • a beamforming technique is used in a 5G communication system to obtain a beam with good directivity. As shown in FIG. 1, the terminal device communicates with the network device through a beam pair to improve the transmission direction. The power, thereby improving the Signal to Interference plus Noise Ratio (SINR) at the receiving end.
  • SINR Signal to Interference plus Noise Ratio
  • beamforming techniques are also used on the terminal device side to generate analog beams in different directions for receiving and transmitting data. Since both the base station and the user equipment use narrower analog beam communications, better communication quality is achieved only when the analog beams used for transmission and reception are aligned. Therefore, in the 3GPP determined 5G NR (New Radio), a beam sweeping process is used to determine a beam pair between the base station and the terminal device, and multiple beam pairs are monitored during the communication to improve communication. Link robustness.
  • NR-PDCCH NR-physical downlink control channel
  • the base station may configure a periodic uplink resource for the terminal device in the connected state (RRC_CONNECTED), and the terminal device sends a scheduling request (SR).
  • SR scheduling request
  • the terminal device initiates a scheduling request to the base station through the SR resource.
  • reliable communication is required when the beam of the network device and the beam of the terminal device are aligned. How to transmit SR in a multi-beam communication scenario is a problem that needs to be solved.
  • the present application provides a transmission method of a scheduling request to implement transmission of an SR in a multi-beam communication scenario.
  • a method for transmitting a scheduling request including:
  • the network device configures the SR resource carried by the uplink control channel for the terminal device; the network device configures, for the terminal device, a mapping relationship between the SR resource and the available multiple uplink beam pairs; the network device receives the terminal device A scheduling request sent by the corresponding SR resource by the plurality of uplink beam pairs.
  • a method for transmitting a scheduling request including:
  • the terminal device acquires, by the network device, the SR resource that is configured by the network device and is carried by the uplink control channel, where the terminal device acquires, by the network device, the SR resource configured by the network device and the available multiple uplink beam pairs. a mapping relationship; the terminal device sends an SR by using the corresponding SR resource by using the multiple uplink beam pairs.
  • the SR resource is used for the scheduling request, and the SR is sent by using the corresponding SR resource, that is, the SR is sent in the corresponding SR resource, and the terminal device is mapped according to the mapping relationship because the SR resource has a mapping relationship with the available uplink beam pair.
  • the SR is sent in the corresponding SR resource by the multiple uplink beam pairs.
  • the network device and/or the terminal device before configuring the mapping relationship, respectively determine a plurality of uplink beam pairs that are available; if the network device and/or the terminal device itself is known, the step is not required, and the available beam pair is used. Sometimes it can be one.
  • the network device configuring the SR resources carried by the uplink control channel for the terminal device includes: the network device allocates multiple SR resources carried by the uplink control channel to the terminal device, and notifies the terminal device, and the notification manner may be an RRC message. Order or other means.
  • the uplink control channel may be a PUCCH (physical uplink control channel), such as NR-PUCCH in 5G.
  • the SR resources are usually multiple, and the mapping, by the network device, the mapping relationship between the multiple SR resources and the multiple available uplink beam pairs for the terminal device includes: The resource is mapped to the plurality of uplink beam pairs, and the mapping relationship between the plurality of SR resources and the plurality of uplink beam pairs is notified to the terminal device; the manner of the notification may be an RRC (radio resource control) Command, MAC CE (Media Access Control control element), DCI (downlink control information) or other methods.
  • the above mapping relationship is usually one SR resource corresponding to one uplink beam pair.
  • the number of the SR resources is greater than the number of available uplink beam pairs, only a part of the SR resources may be mapped; if the number of the SR resources is less than the number of available uplink beam pairs, only a part of the available uplink beam pairs may be used, or some SR resources may be used.
  • a mapping is performed by using one SR resource corresponding to multiple uplink beam pairs.
  • one SR resource can be mapped to the multiple beam pairs. And notifying the terminal device of the mapping relationship between the SR resource and the multiple uplink beam pairs; the manner of the notification may be RRC signaling, MAC CE, DCI, or other manners.
  • the available uplink beam pairs are usually beam pairs for uplink transmission, for example, beam pairs for uplink data transmission, usually multiple or one; one beam pair includes one transmit beam and one receive beam.
  • the terminal device sends an SR on the corresponding SR resource by using the transmit beams of the multiple uplink beam pairs, and the network device receives the SR sent by the terminal device by using the receive beams of the multiple uplink beam pairs.
  • the terminal device when the multiple SRs exceed the maximum number of retransmissions, releases all SR resources; further, the terminal device may initiate random access on the available beam pairs.
  • the network device may configure a prohibit timer (sr-ProhibitTimer) for each SR resource, for prohibiting the same uplink beam pair from continuously transmitting SR. It can be delivered together with the allocated SR resources, or can be sent separately; or a forbidden timer can be configured for each available uplink beam pair, which can be delivered together with the configured mapping relationship.
  • sr-ProhibitTimer a prohibit timer for each SR resource, for prohibiting the same uplink beam pair from continuously transmitting SR. It can be delivered together with the allocated SR resources, or can be sent separately; or a forbidden timer can be configured for each available uplink beam pair, which can be delivered together with the configured mapping relationship.
  • the network device may configure a forbidden timer for each available uplink beam pair, and may be delivered together with the configured mapping relationship, or may be delivered separately; After receiving by the terminal device, each of the beam pairs is configured with a prohibition timer having the same parameters but independently used.
  • the terminal device When the terminal device sends the SR, since each SR resource or uplink beam pair corresponds to one sr-ProhibitTimer, the sr-ProhibitTimer corresponding to the SRs is started, and the corresponding counter starts working; if the terminal device receives the network device sends the SR for the SR In response to a message, such as a UL grant (uplink grant) message, the terminal device stops the sr-ProhibitTimer of all SRs and resets the counter.
  • a message such as a UL grant (uplink grant) message
  • the terminal device During the operation of the sr-ProhibitTimer corresponding to each SR resource or uplink beam pair, the terminal device is not allowed to resend the SR in the SR resource or the uplink beam pair, and the SR retransmission can be performed after the sr-ProhibitTimer stops; When the maximum number of retransmissions is exceeded, the terminal device may release all uplink control channel resources corresponding to the SR, clear the Pending state of all SRs, and further initiate random access on the available beam pairs.
  • a network device including:
  • a configuration module configured to configure, by the terminal device, an SR resource that is carried by the uplink control channel; and configured, for the terminal device, a mapping relationship between the SR resource and the available multiple uplink beam pairs; and a receiving module: configured to receive the terminal The scheduling request sent by the device by using the corresponding SR resources by the multiple uplink beam pairs.
  • the configuration module includes: a processing module: the terminal device is allocated with the SR resource carried by the uplink control channel; and the sending module is configured to notify the terminal device of the allocated SR resource;
  • the processing module is further configured to map the SR resource to the multiple uplink beam pairs, and the sending module is further configured to notify the terminal device of the SR resource and the multiple uplink beam mapping relationship.
  • the foregoing network device may only include a sending module, a receiving module, and a processing module.
  • a terminal device including:
  • a receiving module configured to acquire, by the network device, an SR resource that is configured by the uplink device, configured by the network device, and acquire the SR resource configured by the network device for the terminal device, and the multiple uplink beam pairs.
  • a mapping relationship a sending module, configured to send an SR by using the corresponding SR resource by using the multiple uplink beam pairs.
  • the terminal device may further comprise a processing module for performing steps in the method other than the transmitting/receiving operation.
  • the network device and the terminal device are completely corresponding to the network device and the terminal device in the method on the one hand, and the corresponding steps are performed by the corresponding module.
  • Other functions may refer to the description in the method, and details are not described in detail.
  • a method for transmitting a scheduling request including:
  • the terminal device acquires a network device to configure a dedicated SR resource for the terminal device; and associates the dedicated SR resource with an available plurality of uplink beam pairs; the terminal device adopts a corresponding dedicated SR by using the multiple uplink beam pairs
  • the resource sends the SR.
  • a method for transmitting a scheduling request including:
  • the network device allocates a dedicated SR resource to the terminal device, so that the terminal device associates the dedicated SR resource with an available plurality of uplink beam pairs; the network device receives the terminal device by using the multiple uplinks The pair of beams sent by the corresponding dedicated SR resource.
  • the SR resource is used for the scheduling request, and the SR is sent by using the corresponding SR resource, that is, the SR is sent in the corresponding SR resource, and the terminal device is associated with the available uplink beam pair according to the association relationship.
  • the SR is sent in the corresponding SR resource by the multiple uplink beam pairs.
  • the method further comprises the network device responding to the SR on a symbol of a downlink control channel having the same number of the dedicated SR resources.
  • the dedicated SR resource is an SR domain or a resource in a channel associated with a synchronization beam, for example, the SR domain is in the same time slot as the random access channel, and is in a frequency division multiplexing manner. Resources shared by random access channels.
  • the method prior to associating the dedicated SR resource with the available plurality of uplink beam pairs, the method further includes: the terminal device determining a plurality of available uplink beam pairs; if the terminal device itself is known, the step is not required.
  • the network device configures the dedicated SR resource for the terminal device, and the network device allocates the dedicated SR resource to the terminal device, and notifies the terminal device, and the notification manner may adopt RRC signaling, DCI, or other manners.
  • the dedicated SR resource may be one or more, and associating the dedicated SR resource with the multiple uplink beam pairs includes associating a dedicated SR resource to multiple uplink beam pairs, or A plurality of dedicated SR resources are associated to the plurality of beam pairs, wherein one SR resource corresponds to one uplink beam pair. If the number of dedicated SR resources is greater than the number of available uplink beam pairs, only a part of the SR resources may be associated. If the number of the SR resources is less than the number of available uplink beam pairs, only a part of the available uplink beam pairs may be used, or part of the SR may be used. The resource is associated with one SR resource corresponding to multiple uplink beam pairs.
  • the available uplink beam pairs are usually beam pairs for uplink transmission, for example, beam pairs for data transmission, usually multiple, sometimes one; one beam pair includes one transmit beam and one And receiving, by the terminal device, the SR by using the transmit beam of the multiple uplink beam pairs on the corresponding dedicated SR resource, and the network device receives the SR sent by the terminal by using the synchronization beam corresponding to the receive beam of the multiple uplink beam pairs.
  • the terminal device when the plurality of SRs exceeds the maximum number of retransmissions, releases all dedicated SR resources; further, the terminal device may initiate random access, for example, initiate random access on the available beam pairs.
  • the network device may configure a forbidden timer (sr-ProhibitTimer) for each dedicated SR resource. For transmitting the SRs that are consecutively transmitted by the same uplink beam pair, may be delivered together with the allocated dedicated SR resources.
  • sr-ProhibitTimer a forbidden timer for transmitting the SRs that are consecutively transmitted by the same uplink beam pair
  • the network device may configure a forbidden timer for the dedicated SR resource, and may be delivered together with the allocated dedicated SR resource, or may be sent separately; or may be received by the terminal device. Thereafter, when the terminal device associates the dedicated SR resource with a plurality of beam pairs, the terminal device configures each beam pair with an independent inhibit timer having the same parameter.
  • the terminal device When the terminal device sends the SR, since each dedicated SR resource or uplink beam pair corresponds to one sr-ProhibitTimer, the sr-ProhibitTimer corresponding to the SRs is started, and the corresponding counter starts working; if the terminal device receives the SR for the network device. In response to a message, such as a UL grant message, the terminal device stops the sr-ProhibitTimer of all SRs and resets the counter.
  • a message such as a UL grant message
  • the terminal device does not allow the SR to be resent in the SR resource or the uplink beam pair.
  • SR retransmission can be performed; when multiple SRs are used
  • the terminal device may release all uplink control channel resources corresponding to the SR, clear the Pending state of all SRs, and further initiate random access on the available beam pairs.
  • a terminal device including:
  • a receiving module configured to acquire a dedicated SR resource allocated by the network device to the terminal device; a processing module: configured to associate the dedicated SR resource with an available multiple uplink beam pair; and a sending module: used to pass the multiple The uplink beam pairs send SRs in the corresponding dedicated SR resources.
  • a network device including:
  • a configuration module configured to configure a dedicated SR resource for the terminal device, so that the terminal device associates the dedicated SR resource with the available multiple uplink beam pairs; and the receiving module is configured to receive the terminal device by using the multiple The uplink beam pairs the SRs sent in the corresponding dedicated SR resources.
  • the configuration module includes:
  • the processing module is configured to allocate a dedicated SR resource to the terminal device, and the sending module is configured to notify the terminal device of the dedicated SR resource allocated for the terminal device.
  • the foregoing network device may only include a sending module, a receiving module, and a processing module.
  • the foregoing network device and the terminal device completely correspond to the network device and the terminal device in the method on the other hand, and the corresponding steps are performed by the corresponding module, and other functions may refer to the description in the method, and are not described in detail.
  • a method for transmitting a scheduling request including:
  • the terminal device acquires a dedicated SR resource configured by the network device for the terminal device; and uses the dedicated SR resource to send the SR by using a transmit beam that does not exceed the maximum number of beams.
  • the network device configures the dedicated SR resource for the terminal device; and receives the SR that the terminal device uses the dedicated SR resource to transmit through the transmit beam that does not exceed the maximum number of beams.
  • the network device configures the dedicated SR resource for the terminal device, and the network device allocates the dedicated SR resource to the terminal device, and notifies the terminal device, and the notification manner may adopt RRC signaling or other manner.
  • the method before the sending of the SR, the method further includes: the terminal device acquiring the maximum number of beams for transmitting the SR, where the maximum number of beams may be specified by a standard, or the network device may notify the terminal device.
  • the network device may receive the scheduling request sent by the terminal device at the location of the dedicated SR resource by using a synchronization beam.
  • the above solution is similar to the solution of the other aspect.
  • the dedicated SR resource is usually one.
  • the terminal device does not need to perform an association operation, and other operations, such as a configuration prohibition timer, may refer to another aspect.
  • the solution does not require the terminal device to establish a relationship between the dedicated SR resource and the available beam pair, which is simpler and more flexible, and other aspects are similar, and reference may be made to the description of the solution of the above other aspect.
  • a terminal device including:
  • a receiving module configured to acquire a dedicated SR resource for the terminal device
  • a sending module configured to send the SR by using the dedicated SR resource by using a transmit beam that does not exceed a maximum number of beams.
  • the terminal device still further includes a processing module for performing other steps than the transmitting and receiving steps in the method.
  • a network device including:
  • the configuration module is configured to configure a dedicated SR resource for the terminal device, and the receiving module is configured to receive the SR that is sent by the terminal device by using the dedicated SR resource by using a transmit beam that does not exceed the maximum number of beams.
  • the configuration module includes: a processing module: a dedicated SR resource is allocated to the terminal device, and a sending module is configured to notify the terminal device of the allocated SR resource, and the manner of the notification may be RRC signaling or other manner.
  • the foregoing network device may only include a sending module, a receiving module, and a processing module.
  • the foregoing network device and the terminal device completely correspond to the network device and the terminal device in the method of the other aspect, and the corresponding steps are performed by the corresponding module, and other functions may refer to the description in the method, and are not detailed again.
  • 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.
  • 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.
  • the transmission method and device for scheduling request provided by the present application implements SR transmission in a multi-beam scenario.
  • FIG. 1 is a schematic structural diagram of an application scenario network according to an embodiment of the present disclosure
  • FIG. 2 is a flowchart of a method for transmitting a scheduling request according to an embodiment of the present application
  • FIG. 3 is a flowchart of a method for transmitting a scheduling request according to another embodiment of the present disclosure
  • FIG. 4 is a flowchart of a method for transmitting a scheduling request according to another embodiment of the present disclosure
  • FIG. 5 is a schematic diagram of a network device according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of a terminal device according to an embodiment of the present application.
  • FIG. 7 is a schematic diagram of a terminal device according to another embodiment of the present disclosure.
  • FIG. 8 is a schematic diagram of a network device according to another embodiment of the present disclosure.
  • FIG. 9 is a schematic diagram of another form of network device/terminal device provided by an embodiment of the present application.
  • the terminal device in this embodiment of the present application may refer to an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a user device.
  • the access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol ("SSIP") phone, a Wireless Local Loop (WLL) station, and a personal digital processing (Personal Digital) Assistant, referred to as "PDA" for short, a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal in a 5G network, and the like.
  • SSIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Processing
  • the network device in the implementation of the present application is a network side device that performs wireless communication with the terminal device, for example, a Wireless-Fidelity (Wi-Fi) access point, a base station of a next-generation communication, such as a gNB of 5G. Or a small station, a micro station, a TRP (transmission reception point), or a relay station, an access point, an in-vehicle device, a wearable device, or the like.
  • Wi-Fi Wireless-Fidelity
  • the network device allocates the SR resource carried by the uplink control channel (eg, NR-PUCCH) to the terminal device, and the terminal device sends the SR, and associates with the available uplink beam pair.
  • the uplink control channel eg, NR-PUCCH
  • Methods include:
  • the network device configures, by the network device, the SR resource carried by the uplink control channel.
  • the network device can allocate the SR resource carried by the uplink control channel to the terminal device, and notify the terminal device; for example, the uplink control channel is NR-PUCCH, and the notification mode can adopt RRC signaling.
  • the DCI may also be in other manners; the number of the SR resources may be determined by the network device, and may be multiple or multiple. For example, the terminal device capability, the cell scheduling, and the like may be determined. Similar to LTE, the relevant parameters of each SR resource include at least one parameter of its resource location, period, maximum number of retransmissions, and number of SR resources in the NR-PUCCH.
  • the multiple SR resources may be an SR set, that is, the network device configures an SR set for the terminal device, including multiple SR resources.
  • the network device may configure a prohibit timer (sr-ProhibitTimer) for each SR resource, and notify the terminal device, and may notify the RRC message together with the allocated SR resource.
  • sr-ProhibitTimer a prohibit timer for each SR resource
  • the network device and the terminal device respectively determine a plurality of uplink beam pairs that are available;
  • This step is optional. If the network device and/or the terminal device have already learned the available uplink beam pair, this step is not required.
  • the network device can perform beam management by scheduling the terminal device to determine an uplink beam pair that can be used for uplink transmission.
  • the uplink beam pair is usually a plurality of beam pairs that can be used for uplink data transmission. Of course, one can be one beam pair. Includes a transmit beam and a receive beam.
  • the network device may notify the terminal device of the determined information of the multiple uplink beam pairs; or the terminal device may determine the available uplink beam pair by itself, for example, when the uplink and downlink beam pairs are consistent, the terminal device may have observed multiple available The downstream beam pair is notified and the network device is notified, thus confirming the available upstream beam pair.
  • the number of available beam pairs is typically determined by the network device and is related to factors such as terminal equipment capabilities, cell scheduling, and the like.
  • the network device configures, by the network device, a mapping relationship between the SR resource and multiple uplink beam pairs.
  • the SR resources may be mapped to one or more uplink beam pairs respectively. If the number of SR resources is multiple, multiple SR resources may be mapped to multiple uplink beam pairs, and each uplink beam pair corresponds to One SR resource; if the number of allocated SR resources is more than the number of beam pairs, only a part of SR resources can be mapped.
  • the network device may configure a mapping relationship between the SR resource and the multiple uplink beam pairs, and notify the terminal device of the mapping relationship, for example, notify the terminal device by using MAC CE, RRC, or DCI; the mapping relationship may be an uplink beam pair identifier and the SR.
  • the network device may configure a forbidden timer (sr-ProhibitTimer) for each uplink beam pair, and notify the terminal device, and may notify the terminal device together with the mapping relationship, or may separately notify.
  • a forbidden timer sr-ProhibitTimer
  • each of the beam pairs is respectively configured with a prohibition timer having the same parameters but independently used.
  • the terminal device sends the SR by using multiple SR pairs by using corresponding SR resources.
  • the terminal device has learned the mapping relationship between the SR resource and the plurality of available uplink beam pairs.
  • the SR may be sent in the corresponding SR resource by using the multiple beam pairs according to the mapping relationship.
  • the terminal device sends multiple SRs through the plurality of uplink beam pair transmission beams, and the network device may use the corresponding ones of the multiple uplink beam pairs to receive multiple SRs sent by the terminal device.
  • each SR resource or the uplink beam pair corresponds to one sr-ProhibitTimer
  • the corresponding sr-ProhibitTimer is started, and the corresponding counter also starts to work; for example, one SR resource maps an uplink beam pair.
  • the terminal device sends the SR by using the SR resource
  • the sr-ProhibitTimer corresponding to the SR resource is started, and the corresponding counter starts to work.
  • the terminal device associates the SR resource with the SR resource.
  • the prohibit timer corresponding to the uplink beam pair is started, and the corresponding counter starts to work.
  • the terminal device During the operation of the sr-ProhibitTimer corresponding to each SR resource or uplink beam pair, the terminal device is not allowed to resend the SR in the SR resource or the uplink beam pair; when multiple SRs exceed the maximum number of retransmissions, the terminal device needs to release all
  • the NR-PUCCH resource of the SR clears the Pending state of all SRs; and further can initiate random access on the available beam pairs.
  • the terminal device If the terminal device receives the response message for the SR sent by the network device, such as the UL grant information, the terminal device stops the sr-ProhibitTimer of all the SRs, and resets the counter.
  • the foregoing sr-ProhibitTimer may also configure a forbidden timer for each beam pair, that is, each beam pair that is available to the network device, and notify the terminal device, and may notify the mapping relationship together with the mapping relationship in step 203.
  • the notification is separately performed, and after the network device determines the available multiple beam pairs, a disable timer can be assigned to each beam pair and the terminal device is notified.
  • a disable timer is typically set for the available beam pair.
  • the network device can configure a dedicated uplink control channel resource for the terminal device to send a scheduling request (SR).
  • SR scheduling request
  • this mechanism cannot be directly applied to NR multi-beam based communications. It is assumed that only the terminal device allocates SR resources on a certain beam pair, and the terminal device must wait until the beam pair appears to send the SR. When the number of beams maintained by the network device and the number of terminal devices served are large, the period of the SR is long. In order to shorten the period of SR transmission, the NR should support configuring Y ⁇ 1 SR resources for the terminal equipment and associating these SR resources to Y beam pairs, while allowing the terminal equipment to transmit SRs with multiple beam pairs.
  • the network device allocates a dedicated resource, such as an SR domain or a resource in a channel associated with the synchronization beam, for the terminal device for scheduling the request, ie, allocating dedicated SR resources, and the terminal device will use the dedicated SR
  • a dedicated resource such as an SR domain or a resource in a channel associated with the synchronization beam
  • the network device configures a dedicated SR resource for the terminal device.
  • the network device may allocate multiple dedicated SR resources to the terminal device and notify the terminal device, which may be notified by RRC signaling or DCI, or may be notified by other means.
  • the relevant parameters of each SR resource include at least one parameter of the number of the SR resource, the Preamble/Sequence, the frequency domain resource location, and the like.
  • the number of the dedicated SR resources may be determined by the network device, and may be multiple, or may be one, for example, may be determined by reference to factors such as terminal equipment capabilities, cell scheduling, and the like.
  • the multiple dedicated SR resources may be an SR set, that is, the network device configures a dedicated SR set for the terminal device, including multiple dedicated SR resources.
  • the network device may configure a disable timer (sr-ProhibitTimer) for each dedicated SR resource and notify the terminal device that it may be notified by the RRC message together with the allocated dedicated SR resource.
  • sr-ProhibitTimer a disable timer for each dedicated SR resource
  • the terminal device can learn the time-frequency location of the dedicated SR resource, so that the terminal device can determine the timing of sending the SR. For example, the terminal device can obtain the time-frequency location of the SR-specific resource by receiving the system message or according to the protocol, and The relationship between the SR resources and the synchronization beam is a prior art and will not be described in detail.
  • the terminal device determines multiple available uplink beam pairs.
  • This step is optional. If the terminal device has already learned the available uplink beam pair, this step is not required.
  • the network device may notify the terminal device of the determined information of the multiple uplink beam pairs, so that the terminal device learns the available uplink beam pair; or the terminal device may determine the available uplink beam pair by itself, for example, when the uplink and downlink beam pairs are consistent.
  • the user equipment may have observed multiple available downlink beam pairs and notified the network equipment to confirm the available uplink beam pairs. This process belongs to the prior art and will not be described in detail.
  • the uplink beam pair is usually a plurality of beam pairs that can be used for uplink data transmission. Of course, it can be one, and one beam pair includes one transmit beam and one receive beam.
  • the terminal device associates the dedicated SR resource to multiple uplink beam pairs.
  • the multiple dedicated SR resources may be associated with multiple uplink beam pairs, and each uplink beam pair corresponds to one SR resource. If the number of dedicated SR resources is more than the number of beam pairs, only the association may be associated. Part of the dedicated SR resources.
  • the dedicated SR resource may be associated with the identifier of the multiple uplink beam pairs, or the dedicated SR resource may be associated with the transmit beam identifier or the receive beam identifier of the multiple uplink beam pairs.
  • the SR resources may be mapped to multiple uplink beam pairs respectively.
  • the network device pre-configures the number of one SR associated beams and notifies the terminal device.
  • the network device may configure a forbidden timer for the dedicated SR resource, and may be delivered together with the allocated dedicated SR resource, or may be sent separately; or may be received by the terminal device. Thereafter, when the terminal device associates the dedicated SR resource with a plurality of beam pairs, the terminal device configures each beam pair with an independent inhibit timer having the same parameter.
  • the terminal device sends the SR by using a corresponding dedicated SR resource by using the transmit beam in the multiple uplink beam pairs.
  • the terminal device When the terminal device needs to initiate the scheduling request, the terminal device sends the SR by using the corresponding dedicated SR resource used by the sending beam in the uplink beam pair.
  • the terminal device receives the SR by using the multiple uplink beams to receive the synchronization signal corresponding to the corresponding receiving beam.
  • each dedicated SR resource or uplink beam pair corresponds to one sr-ProhibitTimer
  • the corresponding sr-ProhibitTimer is started, and the corresponding counter starts working; for example, a dedicated SR resource maps an uplink.
  • a dedicated SR resource maps an uplink.
  • the terminal device uses the SR.
  • the prohibition timer corresponding to the uplink beam pair is started, and the corresponding counter starts to work.
  • the terminal device During the operation of the sr-ProhibitTimer corresponding to each SR resource or uplink beam pair, the terminal device is not allowed to resend the SR in the SR resource or the uplink beam pair; when multiple SRs exceed the maximum number of retransmissions, the terminal device needs to release all
  • the dedicated resources of the SR clear the Pending state of all SRs; and further can initiate random access on the available beam pairs.
  • the terminal device If the terminal device receives the response message for the SR sent by the network device, such as the UL grant information, the terminal device stops the sr-ProhibitTimer of all the SRs, and resets the counter.
  • the network device responds to the SR, the beam information available to the terminal device is already known, which facilitates flexible beam management.
  • the foregoing sr-ProhibitTimer may also configure a forbidden timer for each beam pair, that is, each beam pair available to the network device, and notify the terminal device, and may notify before step 303, and the network device determines that the network device is available. After multiple beam pairs, a disable timer can be assigned to each beam pair and the terminal device can be notified.
  • mapping to multiple beam pairs setting a forbidden timer for the SR resources or setting a disable timer for the available beam pairs; if there is only one SR resource, mapping to multiple beam pairs respectively
  • the forbidden timer is usually set for the available beam pair, and can be configured by the network device, or the terminal device can configure each beam pair according to the prohibition timer sent by the network device.
  • the NR uses other dedicated resources, such as the SR domain, to send a scheduling request
  • SR is beneficial.
  • two SR resources are configured for the terminal device, which are respectively associated with two beam pairs.
  • the terminal device transmits the SR on both beam pairs, but because of beam blocking, only one beam pair successfully transmits the SR.
  • the network device sends uplink scheduling (UL grant) information on both PDCCH symbols with the successful beam pair in a subsequent frame.
  • UL grant uplink scheduling
  • the terminal device scans the two beam pairs for a period of time to receive the PDCCH, and thus, it can still receive the information.
  • the user terminal may miss the information because the network device transmits the information only on one PDCCH symbol at this time, and the user terminal does not determine which beam to use to receive the PDCCH. Therefore, a plurality of SR resources are configured instead of only one SR resource (may be only different resource numbers, and the actual resource cost is not increased).
  • the network device can still implement flexible response requests. The way to send, while an SR resource, needs to know the fixed location of the network device to respond to the transmission.
  • the network device allocates a dedicated SR resource to the terminal device, the terminal device acquires the maximum number of beams that can transmit the SR, and then transmits the SR with the transmission beam not exceeding the number, compared with the embodiment of FIG. 3 above. It is not necessary to establish a relationship between dedicated SR resources and available beam pairs, which is simpler and more flexible.
  • the method includes:
  • the network device configures a dedicated SR resource for the terminal device.
  • the dedicated SR resource is one.
  • a prohibit timer (sr-ProhibitTimer) may be configured for the SR resource, and the dedicated SR resource and the prohibition timer are notified to the terminal device; the process is similar to step 301, and other descriptions are provided. Reference may be made to step 301, which will not be described in detail herein;
  • the terminal device acquires a maximum number of beams for transmitting the SR.
  • the maximum number of beams that the terminal device sends the SR can be defined by the standard. Therefore, the terminal device itself knows, for example, that the protocol specifies 2, 4 or 6; in addition, the network device can also notify the maximum number of beams that send the SR.
  • the terminal device, so that the terminal device is informed, the manner of the notification may be RRC signaling, MAC CE or DCI signaling, or other notification manner, indicating the number of transmission beams that the terminal device sends the scheduling request within a certain period of time.
  • the period of time may be a PRACH (physical random access channel) subframe, a preset time window, or a duration of the prohibit timer.
  • the period of time is usually not greater than the duration of the inhibit timer.
  • the period of time may also be stipulated by the protocol, for example, the protocol specifies how many milliseconds the period of time is, or is specified as the duration of the prohibition timer.
  • the terminal device sends the SR by using the allocated dedicated SR resource by using a transmit beam that does not exceed the maximum number of beams.
  • the terminal device may send a scheduling request by using a corresponding dedicated SR resource by using a transmit beam that is less than or equal to the maximum number of beams.
  • the prohibit timer and the corresponding counter are started.
  • the same transmit beam cannot transmit the SR again, and different transmit beams can transmit the SR, that is, different transmit beam transmission SRs are not bound by the prohibit timer.
  • the same beam cannot send the scheduling request again while the timer is disabled.
  • the counter can only increment by one each time the timer is disabled/restarted or incremented by one each time the scheduling request is sent, which is related to the protocol specification.
  • the terminal device When the SR exceeds the maximum retransmission, the terminal device needs to release all the dedicated resources of the SR, clear the Pending state of all the SRs; and further may initiate random access on the available beam pairs.
  • the terminal device If the terminal device receives the response message for the SR sent by the network device, such as the UL grant information, the terminal device stops the sr-ProhibitTimer of all the SRs, and resets the counter.
  • the network device can receive the scheduling request sent by the terminal device at the location of the dedicated SR resource by using a synchronization beam.
  • This embodiment is similar to the embodiment of FIG. 3 above.
  • the main difference is that the terminal device does not need to associate the dedicated SR resource with the available beam pair, which is simpler and more flexible, the allocation of professional SR resources, the prohibition of timer setting and the sending of SR.
  • the reception is similar to the above embodiment, and the description of the corresponding steps of the embodiment of Fig. 3 can be referred to.
  • the network device allocates the SR resource and the dedicated SR resource carried by the uplink control channel (eg, NR-PUCCH) to the terminal device, and sends the SR to the terminal device, and associates with the available uplink beam pair.
  • the uplink control channel eg, NR-PUCCH
  • the network device configures, by the network device, the SR resource and the dedicated SR resource that are carried by the uplink control channel.
  • the network device to configure the SR resource carried by the uplink control channel for the terminal device refer to step 201.
  • the network device to configure the dedicated SR resource for the terminal device refer to step 301.
  • the network device may allocate the foregoing two types of SR resources to the terminal device, and notify the network device.
  • the notification mode may adopt RRC signaling or DCI, or may adopt other methods.
  • the network device may configure a prohibit timer (sr-ProhibitTimer) for each SR resource, and notify the terminal device, and may notify the RRC message together with the allocated SR resource.
  • sr-ProhibitTimer a prohibit timer for each SR resource
  • the network device and the terminal device respectively determine a plurality of uplink beam pairs that are available.
  • This step can refer to step 202 and will not be described in detail.
  • the network device configures the mapping relationship between the SR resource and the uplink beam pair that are carried by the uplink control channel, and notifies the terminal device.
  • the terminal device associates the dedicated SR resource to multiple uplink beam pairs.
  • This step can refer to step 303, and will not be described in detail.
  • the terminal device sends the SR by using the corresponding SR resource by using the multiple uplink beam pairs.
  • This step can refer to steps 204 and 304;
  • the network device receives the SR that is carried by the SR resource of the uplink control channel by using the receiving beam of the multiple uplink beam pairs, and the network device receives the SR carried by the dedicated SR resource by using the synchronization beam corresponding to the receiving beam of the multiple uplink beam pairs.
  • the foregoing method embodiment can be regarded as a combination of the foregoing two method embodiments. For specific details, reference may be made to the description in the foregoing two method embodiments.
  • the method includes:
  • the configuration module 501 is configured to: configure, for the terminal device, the SR resource that is used by the uplink control channel to be used for the scheduling request; and configure a mapping relationship between the SR resource and the available multiple uplink beam pairs for the terminal device;
  • the receiving module 502 is configured to receive a scheduling request that is sent by the terminal device by using the multiple uplink beam pairs by using corresponding SR resources.
  • the configuration module includes:
  • the terminal device is allocated an SR resource for scheduling the request carried by the uplink control channel;
  • a sending module configured to notify the terminal device of the allocated SR resource
  • the processing module is further configured to map the SR resource to the multiple uplink beam pairs;
  • the sending module is further configured to notify the terminal device of the mapping relationship between the SR resource and the multiple uplink beams.
  • the foregoing network device may only include a sending module, a receiving module, and a processing module.
  • the network device is completely corresponding to the network device in the method embodiment, and the corresponding module performs corresponding steps, for example, the sending module method performs the step of sending or notifying in the method embodiment, and the receiving module performs the steps received in the method embodiment, and the other steps.
  • the steps such as allocating the SR resource, the allocation prohibition timer, determining the available beam pair, mapping, etc., may be implemented by the processing module, and the foregoing content only lists some functions, and other functions may refer to the corresponding steps of the method embodiment and the description of the content of the invention. .
  • the method includes:
  • the receiving module 601 is configured to acquire an SR resource that is configured by the network device to be configured by the uplink device, and obtain the SR resource configured by the network device for the terminal device, and the multiple uplink beam pairs. Mapping relationship;
  • the sending module 602 is configured to send the SR by using the corresponding SR resource by using the multiple uplink beam pairs.
  • the terminal device further includes a processing module (not shown) for performing steps other than the transmitting and receiving steps of the method embodiment.
  • the terminal device completely corresponds to the network device in the method embodiment, and the corresponding module performs corresponding steps, for example, the sending module method performs the steps of sending or notifying in the method embodiment, and the receiving module performs the steps received in the method embodiment, and the other steps.
  • the steps such as determining the number of beam pairs, starting the prohibition timer, etc., may be implemented by the processing module.
  • the foregoing content only lists some functions, and other functions may refer to the corresponding steps of the method embodiment and the description of the invention content.
  • the method includes:
  • the receiving module 701 is configured to acquire a dedicated SR resource allocated by the network device to the terminal device.
  • the processing module 702 is configured to associate the dedicated SR resource with multiple available uplink beam pairs;
  • the sending module 703 is configured to send a scheduling request by using the multiple uplink beam pairs in the corresponding dedicated SR resource.
  • the terminal device completely corresponds to the network device in the method embodiment, and the corresponding module performs corresponding steps, for example, the sending module method performs the steps of sending or notifying in the method embodiment, and the receiving module performs the steps received in the method embodiment, and the other steps.
  • the steps such as determining the number of beam pairs, starting the prohibition timer, etc., may be implemented by the processing module.
  • the foregoing content only lists some functions, and other functions may refer to the corresponding steps of the method embodiment and the description of the invention content.
  • the method includes:
  • a configuration module 801 configured to configure a dedicated SR resource for the terminal device, so that the terminal device associates the dedicated SR resource with the available multiple uplink beam pairs;
  • the receiving module 802 is configured to receive an SR that is sent by the terminal device by using the multiple uplink beam pairs in a corresponding dedicated SR resource.
  • the configuration module includes:
  • Processing module configured to allocate a dedicated SR resource to the terminal device
  • the sending module is configured to notify the terminal device of the dedicated SR resource allocated for the terminal device.
  • the foregoing network device may only include a sending module, a receiving module, and a processing module.
  • the network device is completely corresponding to the network device in the method embodiment, and the corresponding module performs corresponding steps, for example, the sending module method performs the step of sending or notifying in the method embodiment, and the receiving module performs the steps received in the method embodiment, and the other steps.
  • the steps such as allocating the SR resource, the allocation prohibition timer, etc., may be implemented by the processing module.
  • the foregoing content only lists some functions, and other functions may refer to the corresponding steps of the method embodiment and the description of the content of the invention.
  • the method includes:
  • the receiving module 601 is configured to acquire a dedicated SR resource configured by the network device for the terminal device;
  • the sending module 602 is configured to send the SR by using the dedicated SR resource by using a transmit beam that does not exceed a maximum number of beams.
  • the terminal device further includes a processing module (not shown) for performing steps other than the transmitting and receiving steps of the method embodiment.
  • the method includes:
  • the configuration module 801 is configured to configure a dedicated SR resource for the terminal device.
  • the receiving module 802 is configured to receive an SR that is sent by the terminal device by using the dedicated SR resource by using a transmit beam that does not exceed a maximum number of beams.
  • the configuration module includes: a processing module: a dedicated SR resource is allocated to the terminal device; and a sending module is configured to notify the terminal device of the allocated SR resource, and the manner of the notification may be RRC signaling or other manner.
  • the foregoing network device may only include a sending module, a receiving module, and a processing module.
  • the foregoing network device and the terminal device completely correspond to the network device and the terminal device in the method of the other aspect, and the corresponding module performs corresponding steps, for example, the sending module method performs the step of sending or notifying in the method embodiment, and the receiving module performs the method.
  • the steps received in the embodiment, other steps, such as allocating the SR resource, the allocation prohibition timer, etc., may be implemented by the processing module.
  • the foregoing content only lists some functions, and other functions may refer to the corresponding steps of the method embodiment and the content of the invention. description.
  • the network device configures one or more SR resources for the terminal device, and uses the corresponding method to implement the scheduling request of the terminal device by using multiple beam pairs, which is beneficial to shortening the SR transmission period and reducing the terminal device waiting.
  • the time of the periodic SR resource At the same time, in the case of a beam failure in the NR, the beam recovery request can also be initiated by using the SR resource.
  • the multiple beam pairs are transmitted, and the probability of successful beam transmission request signal transmission can be improved.
  • the above embodiments provide an embodiment only for the transmission of the scheduling request, but in fact, other content carried by the uplink control channel, such as ACK/NACK, CQI (channel quality indicator), PMI (precoding matrix indication)
  • the pre-coding of the uplink control channel can be implemented by using multiple uplink control channel resources to implement the uplink transmission based on multiple beam pairs, so that the uplink robustness can be enhanced, and the specific manner is similar to the foregoing embodiment. No longer detailed.
  • the network device and the terminal device of the foregoing embodiments have another form of embodiment.
  • the processing module may be replaced by a processor, the sending module may be replaced by a transmitter, and the receiving module may be replaced by a receiver, respectively performing the method embodiment.
  • the transmitter and receiver can form a transceiver by transmitting operations, receiving operations, and related processing operations.
  • the processor may be a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array, or other programmable logic device.
  • the transmitter and receiver can form a transceiver. It is also possible to further include an antenna, and the number of antennas may be one or more.
  • bus includes a power bus, a control bus, and a status signal bus in addition to the data bus.
  • bus includes a power bus, a control bus, and a status signal bus in addition to the data bus.
  • the various buses are labeled as buses in the figure.
  • 9 is only a schematic diagram, and may include other components or only some components, including, for example, a transmitter and a receiver; or only a transmitter, a receiver, and a processor.
  • a memory may be further included for storing computer executable program code, wherein when the program code includes an instruction, when the processor executes In the case of an instruction, the instruction causes the network device or the terminal device to perform corresponding steps in the method embodiment.
  • the memory may also be in the processor.
  • the computer program product includes one or more computer instructions.
  • 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)).

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Abstract

本申请提供一种调度请求的传输方法及装置，包括网络设备为终端设备配置由上行控制信道承载的调度请求SR资源；所述网络设备为所述终端设备配置所述SR资源与可用的多个上行波束对的映射关系；所述网络设备接收所述终端设备通过所述多个上行波束对采用相应的SR资源发送的调度请求；本申请提供的调度请求的传输方法及装置，实现了多波束通信场景下SR的发送。

Description

一种调度请求的传输方法及装置 技术领域
本申请涉及通信技术领域，尤其涉及一种调度请求的传输方法及装置。
背景技术
5G通信系统中将会采用相对于LTE(Long Term Evolution)更高的载波频率，如38GHz、72GHz等，来实现更大带宽、更高传输速率的无线通信。由于载波频率较高，使得其发射的无线信号在空间传播过程中经历更加严重的衰落，甚至在接收端难以检测出该无线信号。为此，5G通信系统中将采用波束赋形(beamforming)技术来获得具有良好方向性的波束，如图1所示，终端设备与网络设备之间通过波束对进行通信，以提高在发射方向上的功率，从而改善接收端的信干噪比(Signal to Interference plus Noise Ratio,SINR)。
为了进一步提高通信质量，在终端设备侧也会使用波束赋形技术来产生不同方向上的模拟波束，用于接收和发送数据。由于基站和用户设备都会使用较窄的模拟波束通信，所以只有当用于发送和接收的模拟波束对准时才会获得更好的通信质量。因此，在3GPP确定5G NR(New Radio，新空口)中会用波束扫描(Beam sweeping)过程来确定基站和终端设备之间的波束对，并在通信过程中监视多个波束对，以提高通信链路的鲁棒性。
在3GPP RAN1会议讨论中，已经同意配置终端设备同时或在不同OFDM(orthogonal frequency division multiplexing，正交频分复用)符号上监视多个波束对(又称为波束对链路，Beam pair link，BPL)上的下行控制信道，如NR-PDCCH(NR-physical downlink control channel，物理下行控制信道)，以增强下行链路的鲁棒性。
LTE(Long Term Evolution，长期演进)系统中，基站可能为处于连接态(RRC_CONNECTED)的终端设备配置周期性的上行资源，用于终端设备发送调度请求(Scheduling Request,SR)。当终端设备没有足够的上行资源用于数据发送时，终端设备通过SR资源向基站发起调度请求。而5G NR中，需网络设备的波束和终端设备的波束对准时，才能进行可靠通信。如何在多波束通信场景下进行SR的传输，是目前需要解决的问题。
发明内容
本申请提供一种调度请求的传输方法，以实现多波束通信场景下SR的传输。
一方面，公开了一种调度请求的传输方法，包括：
网络设备为终端设备配置由上行控制信道承载的SR资源；所述网络设备为所述终端设备配置所述SR资源与可用的多个上行波束对的映射关系；所述网络设备接收所述终端设备通过所述多个上行波束对采用相应的SR资源发送的调度请求。
和上述一方面的终端设备对应，还公开了一种调度请求的传输方法，包括：
终端设备获取网络设备为所述终端设备配置的由上行控制信道承载的SR资源；所述终端设备获取所述网络设备为所述终端设备配置的所述SR资源与可用的多个上行波束对的映射关系；所述终端设备通过所述多个上行波束对采用相应的SR资源发送SR。
结合上述各方面，所述SR资源用于调度请求，采用相应的SR资源发送SR即在相应的SR资源发送SR，由于所述SR资源与可用的上行波束对有映射关系，终端设备根据映射关系通过所述多个上行波束对在相应的SR资源发送SR。
结合上述各方面，配置映射关系之前进一步包括：网络设备和/或终端设备分别确定可用的多个上行波束对；如果网络设备和/或终端设备本身已经获知，则不需要该步骤，可用波束对有时可能为一个。
结合上述各方面，网络设备为终端设备配置由上行控制信道承载的SR资源包括：网络设备为终端设备分配由上行控制信道承载的多个SR资源，并通知终端设备，通知的方式可以采用RRC信令或其它方式。上行控制信道可以为PUCCH(physical uplink control channel，物理上行控制信道)，例如5G中的NR-PUCCH。
结合上述各方面，所述SR资源通常为多个，所述网络设备为所述终端设备配置所述多个SR资源与所述多个可用上行波束对的映射关系包括：将所述多个SR资源映射到所述多个上行波束对，并将所述多个SR资源与所述多个上行波束对的映射关系通知终端设备；通知的方式可以采用RRC(radio resource control，无线资源控制)信令、MAC CE(Media Access Control control element，MAC控制元素)、DCI(downlink control information，下行控制信息)或其它方式。上述映射关系通常为一个SR资源对应一个上行波束对。如果SR资源的数量大于可用上行波束对的数量，则可以只映射一部分SR资源；如果SR资源的数量小于可用上行波束对的数量，则可以只使用一部分可用上行波束对，也可以将部分SR资源采用一个SR资源对应多个上行波束对的方式映射。
在另一个例子中，如果配置的SR资源只有一个，则可以将一个SR资源映射到所述多个波束对。并将所述SR资源与所述多个上行波束对的映射关系通知终端设备；通知的方式可以采用RRC信令、MAC CE、DCI或其它方式。
结合上述各方面，可用的上行波束对通常为用于上行传输的波束对，例如：上行数据传输的波束对，通常为多个，也可能为一个；一个波束对包括一个发送波束和一个接收波束， 终端设备通过所述多个上行波束对的发送波束在相应的SR资源发送SR，网络设备通过所述多个上行波束对的接收波束接收终端设备发送的SR。
结合上述各方面，当所述多个SR都超过最大重传次数时，终端设备释放所有SR资源；进一步的，终端设备可以在可用的波束对上发起随机接入。
另外，当有多个SR资源与多个上行波束对一一映射时，网络设备可以为每个SR资源配置一个禁止定时器(sr-ProhibitTimer)，用于禁止同一个上行波束对连续的发送SR，可以连同分配的SR资源一起下发，也可以分开下发；或者为每个可用的上行波束对配置一个禁止定时器，可以连同配置的映射关系一起下发，也可以分开下发。
当有一个SR资源与多个上行波束对映射时，网络设备可以为每个可用的上行波束对配置一个禁止定时器，可以连同配置的映射关系一起下发，也可以分别下发；也可以由终端设备接收后，分别为每个波束对配置有相同参数但各自独立使用的禁止定时器。
终端设备发送SR时，由于每个SR资源或上行波束对对应一个sr-ProhibitTimer，这些SR对应的sr-ProhibitTimer启动，相应的计数器也开始工作；如果终端设备收到网络设备发送的针对该SR的响应消息，如UL grant(uplink grant)信息，则终端设备停止所有SR的sr-ProhibitTimer，重置计数器。
每个SR资源或上行波束对对应的sr-ProhibitTimer在运行期间，终端设备不允许在该SR资源或该上行波束对再次发送SR，sr-ProhibitTimer停止后，可以进行SR重传；当多个SR都超过最大重传次数时，终端设备可以释放所有SR对应的上行控制信道资源，清除所有SR的Pending状态；并进一步的可以在可用的波束对上发起随机接入。
和上述一方面的方案中网络设备对应，还公开了一种网络设备，包括：
配置模块：用于为终端设备配置由上行控制信道承载的SR资源；以及为所述终端设备配置所述SR资源与可用的多个上行波束对的映射关系；接收模块：用于接收所述终端设备通过所述多个上行波束对采用相应的SR资源发送的调度请求。
结合上述方案，其中，所述配置模块包括：处理模块：将为终端设备分配由上行控制信道承载的SR资源；发送模块：用于将分配的SR资源通知所述终端设备；
所述处理模块还用于将所述SR资源映射到所述多个上行波束对；所述发送模块还用于将所述SR资源与所述多个上行波束映射关系通知所述终端设备。
另外，上述网络设备可以只包括发送模块，接收模块及处理模块。
和上述一方面的方案终端设备对应，还公开了一种终端设备，包括：
接收模块：用于获取网络设备为所述终端设备配置的由上行控制信道承载的SR资源，以及获取所述网络设备为所述终端设备配置的所述SR资源与所述多个上行波束对的映射关 系；发送模块：用于通过所述多个上行波束对采用相应的SR资源发送SR。
所述终端设备还可以包括处理模块：用于执行方法中除发送/接收操作之外的步骤。
上述网络设备和终端设备与一方面的方法中的网络设备及终端设备完全对应，由相应的模块执行相应的步骤，其它的功能可以参考方法中的描述，不再详述。
另一方面，公开了一种调度请求的传输方法，包括：
终端设备获取网络设备为所述终端设备配置专用SR资源；并将所述专用SR资源与可用的多个上行波束对进行关联；所述终端设备通过所述多个上行波束对采用相应的专用SR资源发送SR。
和上述另一方面的网络设备对应，还公开了一种调度请求的传输方法，包括：
网络设备为所述终端设备分配专用SR资源，以使得所述终端设备将所述专用SR资源与可用的多个上行波束对进行关联；所述网络设备接收所述终端设备通过所述多个上行波束对采用相应的专用SR资源发送的SR。
结合上述各方面，所述SR资源用于调度请求，采用相应的SR资源发送SR即在相应的SR资源发送SR，由于所述SR资源与可用的上行波束对有关联关系，终端设备根据关联关系通过所述多个上行波束对在相应的SR资源发送SR。
结合上述各方面，该方法进一步包括：所述网络设备在与所述专用SR资源数目相同的下行控制信道的符号上响应所述SR。
结合上述各方面，其中所述专用SR资源为SR域或与同步波束相关联的信道中的资源，例如SR域为与随机接入信道位于同一时隙，并以频分复用方式与所述随机接入信道共用的资源。
结合上述各方面，将所述专用SR资源与可用的多个上行波束对进行关联之前进一步包括：终端设备确定可用的多个上行波束对；如果终端设备本身已经获知，则不需要该步骤。
结合上述各方面，网络设备为终端设备配置专用SR资源包括：网络设备为终端设备分配专用SR资源，并通知终端设备，通知的方式可以采用RRC信令、DCI或其它方式。
结合上述各方面，专用SR资源可以一个或多个，并将所述专用SR资源与所述多个上行波束对进行关联包括：将一个专用SR资源关联到多个上行波束对，或将所述多个专用SR资源关联到所述多个波束对，其中一个SR资源对应一个上行波束对。如果专用SR资源的数量大于可用上行波束对的数量，则可以只关联一部分SR资源，如果SR资源的数量小于可用上行波束对的数量，则可以只使用一部分可用上行波束对，也可以将部分SR资源采用一个SR资源对应多个上行波束对的方式关联。
结合上述各方面，可用的上行波束对通常为用于上行传输的波束对，例如：用于数据传 输的波束对，通常为多个，有时也可能为一个；一个波束对包括一个发送波束和一个接收波束，终端设备通过所述多个上行波束对的发送波束在相应的专用SR资源发送SR，网络设备通过所述多个上行波束对的接收波束对应的同步波束接收终端发送的SR。
结合上述各方面，当所述多个SR都超过最大重传次数时，终端设备释放所有专用SR资源；进一步的，终端设备可以发起随机接入，例如在可用的波束对上发起随机接入。
另外，当有多个专用SR资源与多个上行波束对一一映射时，即一个专用SR资源关联一个上行波束对，网络设备可以为每个专用SR资源配置一个禁止定时器(sr-ProhibitTimer)，用于禁止同一个上行波束对连续的发送SR，可以连同分配的专用SR资源一起下发。
当有一个专用SR资源与多个上行波束对关联时，网络设备可以为该专用SR资源配置禁止定时器，可以连同分配的专用SR资源一起下发，也可以分开下发；也可以终端设备接收后，当终端设备将该专用SR资源与多个波束对相关联时，终端设备为每个波束对配置具有相同参数的独立的禁止定时器。
终端设备发送SR时，由于每个专用SR资源或上行波束对对应一个sr-ProhibitTimer，这些SR对应的sr-ProhibitTimer启动，相应的计数器也开始工作；如果终端设备收到网络设备发送的针对SR的响应消息，如UL grant信息，则终端设备停止所有SR的sr-ProhibitTimer，重置计数器。
每个SR资源或上行波束对对应的sr-ProhibitTimer运行期间，终端设备不允许在该SR资源或该上行波束对再次发送SR，sr-ProhibitTimer停止后，可以进行SR重传；当多个SR都超过最大重传次数时，终端设备可以释放所有SR对应的上行控制信道资源，清除所有SR的Pending状态；并进一步的可以在可用的波束对上发起随机接入。
和上述另一方面的方案对应，还公开了一种终端设备，包括：
接收模块：用于获取网络设备为所述终端设备分配的专用SR资源；处理模块：用于将所述专用SR资源与可用的多个上行波束对进行关联；发送模块：用于通过所述多个上行波束对在相应的专用SR资源发送SR。
和上述另一方面的方案对应，还公开了一种网络设备，包括：
配置模块：用于为终端设备配置专用SR资源，以使得所述终端设备将所述专用SR资源与可用的多个上行波束对进行关联；接收模块：用于接收所述终端设备通过所述多个上行波束对在相应的专用SR资源发送的SR。
结合上述方案，其中，所述配置模块包括：
处理模块：用于为终端设备分配专用SR资源；发送模块：用于将所述为终端设备分配的专用SR资源通知终端设备。
另外，上述网络设备可以只包括发送模块，接收模块及处理模块。
上述网络设备和终端设备与另一方面的方法中的网络设备及终端设备完全对应，由相应的模块执行相应的步骤，其它的功能可以参考方法中的描述，不再详述。
又一方面，公开了一种调度请求的传输方法，包括：
终端设备获取网络设备为所述终端设备配置的专用SR资源；并采用所述专用SR资源通过不超过最大波束数量的发送波束发送SR。
相应的，网络设备为终端设备配置专用SR资源；并接收所述终端设备采用所述专用SR资源通过不超过最大波束数量的发送波束发送的SR。
网络设备为终端设备配置专用SR资源包括：网络设备为终端设备分配专用SR资源，并通知终端设备，通知的方式可以采用RRC信令或其它方式。
结合上述方面，发送SR之前还包括：终端设备获取发送SR的最大波束数量，所述最大波束数量可以由标准规定，也可以由网络设备通知所述终端设备。
进一步的，网络设备可以通过同步波束在所述专用SR资源的位置接收终端设备发送的调度请求。
上述方案与上面另一方面的方案类似，专用SR资源通常为一个，区别在于终端设备不需要进行关联操作，其它操作，如配置禁止定时器等，可以参考另一方面的方案。
该方案和上面的另一方面的方案相比，不需要终端设备为专用SR资源与可用波束对建立关联关系，更加简单灵活，其它方面类似，可以参考上面另一方面的方案的描述。
和上述又一方面的方案的终端设备对应，还公开了一种终端设备，包括：
接收模块：用于获取网络设备为所述终端设备配置专用SR资源；发送模块：用于采用所述专用SR资源通过不超过最大波束数量的发送波束发送SR。
该终端设备还进一步包括处理模块：用于执行方法中发送及接收步骤之外的其它步骤。
和上述又一方面的方案的网络设备对应，还公开了一种网络设备，包括：
配置模块：用于为终端设备配置专用SR资源；接收模块：用于接收所述终端设备采用所述专用SR资源通过不超过最大波束数量的发送波束发送的SR。
其中：配置模块包括：处理模块：为终端设备分配专用SR资源，发送模块：用于将分配的SR资源通知终端设备，通知的方式可以采用RRC信令或其它方式。
另外，上述网络设备可以只包括发送模块，接收模块及处理模块。
上述网络设备和终端设备与又一方面的方法中的网络设备及终端设备完全对应，由相应的模块执行相应的步骤，其它的功能可以参考方法中的描述，不再详述。
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。
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。
本申请提供的调度请求的传输方法及装置，实现了多波束场景下SR的传输。
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图1为本申请实施例提供的应用场景网络架构示意图；
图2为本申请实施例提供的一种调度请求的传输方法流程图；
图3为本申请另一实施例提供的一种调度请求的传输方法流程图；
图4为本申请又一实施例提供的一种调度请求的传输方法流程图；
图5是本申请实施例提供的网络设备示意图；
图6是本申请实施例提供的终端设备示意图；
图7是本申请另一实施例提供的终端设备的示意图；
图8是本申请另一实施例提供的网络设备的示意图；
图9是本申请实施例提供的另一形式的网络设备/终端设备的示意图。
具体实施方式
本申请实施例中的终端设备可以指接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。接入终端可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，简称为“SIP”)电话、无线本地环路(Wireless Local Loop，简称为“WLL”)站、个人数字处理(Personal Digital Assistant，简称为“PDA”)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备，5G网络中的终端等。
本申请实施中的网络设备是与所述终端设备进行无线通信的网络侧设备，例如，无线保真(Wireless-Fidelity，Wi-Fi)的接入点、下一代通信的基站，如5G的gNB或小站、微站，TRP(transmission reception point，传输接收点)，还可以是中继站、接入点、车载设备、可穿戴设备等。
在一个实施例中，网络设备为终端设备分配由上行控制信道(如，NR-PUCCH)承载的SR资源，用于终端设备发送SR，并且与可用上行波束对建立关联关系，参考图2，该方法包括：
201、网络设备为终端设备配置由上行控制信道承载的SR资源；
终端设备成功接入网络后，网络设备，如基站，可以给终端设备分配由上行控制信道承载的SR资源，并通知终端设备；例如，上行控制信道为NR-PUCCH，通知方式可以采用RRC信令，DCI，也可以采用其它方式；SR资源的数量可以由网络设备确定，通常为多个，也可以为一个，例如可以参考终端设备能力、小区调度等因素确定。类似LTE，每个SR资源的相关参数包括了其在NR-PUCCH的资源位置、周期、最大重传次数、SR资源的编号等至少一个参数。
多个SR资源可以为一个SR set，即网络设备为终端设备配置一个SR set，其中包括多个SR资源。
另外，网络设备可以为每个SR资源配置一个禁止定时器(sr-ProhibitTimer)，并通知终端设备，可以与分配的SR资源一起通过RRC消息通知。
202、网络设备与终端设备分别确定可用的多个上行波束对；
该步骤可选，如果网络设备和/或终端设备已经获知了可用的上行波束对，则不需要执行该步骤。
网络设备可以通过调度终端设备进行波束管理，确定可用于上行传输的上行波束对，所述上行波束对通常为多个可以用于上行数据传输的波束对，当然有时候可以为一个，一个波束对包括一个发送波束及一个接收波束。
网络设备可以将确定的多个上行波束对的信息通知终端设备；或者，终端设备也可以自己确定可用的上行波束对，例如：当上下行波束对一致时，终端设备可能已经观测到了多个可用的下行波束对，并通知了网络设备，从而便确认了可用的上行波束对。
可用波束对的数量通常由网络设备确定，与终端设备能力、小区调度等因素有关。
203、网络设备为终端设备配置所述SR资源与多个上行波束对的映射关系；
如果SR数量为一个，可以将该SR资源分别映射到一个或多个上行波束对；如果SR资源数量为多个，可以将多个SR资源映射到多个上行波束对，每个上行波束对对应一个SR资源；如果分配的SR资源的数量多于波束对的数量，可以只映射一部分SR资源。
网络设备可以配置SR资源和多个上行波束对之间的映射关系，并将所述映射关系通知终端设备，例如通过MAC CE、RRC或DCI通知终端设备；映射关系可以是上行波束对标识与SR资源的映射关系，也可以是是上行波束对的发送波束标识或接收波束标识与SR资源的 映射关系。
另外，网络设备可以为每个上行波束对配置一个禁止定时器(sr-ProhibitTimer)，并通知终端设备，可以与所述映射关系一起通知终端设备，也可以分别通知。也可以由终端设备接收后，分别为每个波束对配置有相同参数但各自独立使用的禁止定时器。
204、终端设备通过多个波束对采用相应的SR资源发送SR。
终端设备已经获知所述SR资源与多个可用的上行波束对的映射关系，当需要发起调度请求时，便根据所述映射关系可通过所述多个波束对在相应的SR资源中发送SR，当然也可以只使用所述多个波束对中的一部分波束对进行SR的发送。
具体的，终端设备通过多个上行波束对中发送波束发送多个SR，网络设备可以使用多个上行波束对中相应的接收波束接收终端设备发送的多个SR。
进一步的，终端设备发送SR时，由于每个SR资源或上行波束对对应一个sr-ProhibitTimer，这些相应的的sr-ProhibitTimer启动，相应的计数器也开始工作；例如：一个SR资源映射一个上行波束对时，则终端设备用该SR资源发送SR时，该SR资源对应的sr-ProhibitTimer启动，相应的计数器也开始工作；一个SR资源映射多个上行波束对时，则终端设备用该SR资源关联的某个上行波束对发送SR时，对应该上行波束对的禁止定时器启动，相应的计数器也开始工作。
每个SR资源或上行波束对对应的sr-ProhibitTimer运行期间，终端设备不允许在该SR资源或该上行波束对再次发送SR；当多个SR都超过最大重传次数时，终端设备需释放所有SR的NR-PUCCH资源，清除所有SR的Pending状态；并进一步的可以在可用的波束对上发起随机接入。
如果终端设备收到网络设备发送的针对SR的响应消息，如UL grant信息，则终端设备停止所有SR的sr-ProhibitTimer，重置计数器。
另外，上述的sr-ProhibitTimer也可以针对每个波束对，即网络设备为可用的每个波束对配置一个禁止定时器，并通知终端设备，可以在步骤203中连同映射关系一起进行通知，也可以分开进行通知，网络设备确定了可用的多个波束对后，便可为每个波束对分配禁止定时器，并通知终端设备。
如果SR资源有多个，分别映射到多个波束对上，针对SR资源设置禁止定时器或针对可用波束对设置禁止定时器均可；如果SR资源只有一个，分别映射到多个波束对上，则通常针对可用波束对设置禁止定时器。
在LTE中，网络设备可以为终端设备配置一个专用的上行控制信道资源用于发送调度请求(Scheduling request,SR)。然而，这种机制不能直接应用于NR基于多波束的通信中。假 设NR中只为终端设备在某个波束对上分配SR资源，那么终端设备必须等到该波束对出现的时候才能发送SR。当网络设备维护的波束数目和服务的终端设备较多时，就会导致SR的周期较长。为了缩短SR发送的周期，NR应该支持为终端设备配置Y≥1个SR资源，并将这些SR资源关联到Y个波束对，同时允许终端设备用多个波束对发送SR。
在另一个实施例中，网络设备为终端设备分配专用资源，如SR域或与同步波束相关联的信道中的资源，用于调度请求，即分配专用SR资源，并且终端设备将所述专用SR资源与可用上行波束对建立关联关系；参考图3，具体过程如下：
301、网络设备为终端设备配置专用SR资源；
终端设备成功接入网络后，网络设备，如基站，可以给终端设备分配多个专用SR资源并通知终端设备，可以通过RRC信令或DCI通知，也可以采用其它方式通知。例如，每个SR资源的相关参数包括了SR资源的编号、Preamble/Sequence、频域资源位置等至少一个参数。专用SR资源的数量可以由网络设备确定，通常为多个，也可以为一个，例如可以参考终端设备能力、小区调度等因素确定。
多个专用SR资源可以为一个SR set，即网络设备为终端设备配置一个专用SR set，其中包括多个专用SR资源。
另外，网络设备可以为每个专用SR资源配置一个禁止定时器(sr-ProhibitTimer)，并通知终端设备，可以与分配的专用SR资源一起通过RRC消息通知。
该步骤之前，终端设备可以获知专用SR资源的时频位置，便于终端设备确定发送SR的时机，例如：终端设备可以通过接收系统消息或者根据协议规定，获得SR专用资源的时频位置，以及这些SR资源和与同步波束之间的关联关系，该过程属于现有技术，不再详述。
302、终端设备确定可用的多个上行波束对；
该步骤为可选，如果终端设备已经获知了可用的上行波束对，则不需要执行该步骤。
网络设备可以将确定的多个上行波束对的信息通知终端设备，从而终端设备获知可用的上行波束对；或者，终端设备也可以自己确定可用的上行波束对，例如：当上下行波束对一致时，用户设备可能已经观测到了多个可用的下行波束对，并通知了网络设备，从而便确认了可用的上行波束对。该过程属于现有技术，不再详述。
所述上行波束对通常为多个可以用于上行数据传输的波束对，当然有时候可以为一个，一个波束对包括一个发送波束及一个接收波束。
303、终端设备将所述专用SR资源关联到多个上行波束对；
如果专用SR资源数量为多个，可以将多个专用SR资源关联到多个上行波束对，每个上 行波束对对应一个SR资源，如果专用SR资源的数量多于波束对的数量，可以只关联一部分专用SR资源。建立关联时，可以将专用SR资源与多个上行波束对的标识进行关联，也可以将专用SR资源与多个上行波束对的发送波束标识或接收波束标识进行关联。
如果专用SR数量为一个，可以将该SR资源分别映射到多个上行波束对，这时网络设备预先配置一个SR关联波束的数目，并通知终端设备。
当有一个专用SR资源与多个上行波束对关联时，网络设备可以为该专用SR资源配置禁止定时器，可以连同分配的专用SR资源一起下发，也可以分开下发；也可以终端设备接收后，当终端设备将该专用SR资源与多个波束对相关联时，终端设备为每个波束对配置具有相同参数的独立的禁止定时器。
304、终端设备通过所述多个上行波束对中的发送波束采用相应的专用SR资源发送SR。
当终端设备需要发起调度请求时，终端设备通过上行波束对中的发送波束采用的相应的专用SR资源发送SR，当然也可以只使用所述多个波束对中的一部分波束对进行SR的发送；进一步的，网络设备通过所述多个上行波束对相应的接收波束对应的同步波束接收所述终端设备发送SR。
进一步的，终端设备发送SR时，由于每个专用SR资源或上行波束对对应一个sr-ProhibitTimer，这些相应的的sr-ProhibitTimer启动，相应的计数器也开始工作；例如：一个专用SR资源映射一个上行波束对时，则终端设备用该SR资源发送SR时，该SR资源对应的sr-ProhibitTimer启动，相应的计数器也开始工作；一个专用SR资源映射多个上行波束对时，则终端设备用该SR资源关联的某个上行波束对发送SR时，对应该上行波束对的禁止定时器启动，相应的计数器也开始工作。
每个SR资源或上行波束对对应的sr-ProhibitTimer运行期间，终端设备不允许在该SR资源或该上行波束对再次发送SR；当多个SR都超过最大重传次数时，终端设备需释放所有SR的专用资源，清除所有SR的Pending状态；并进一步的可以在可用的波束对上发起随机接入。
如果终端设备收到网络设备发送的针对SR的响应消息，如UL grant信息，则终端设备停止所有SR的sr-ProhibitTimer，重置计数器。
上述方案中，网络设备响应SR的时候，已经获知了终端设备可用的波束信息，便于进行灵活的波束管理。
另外，上述的sr-ProhibitTimer也可以针对每个波束对，即网络设备为可用的每个波束对配置一个禁止定时器，并通知终端设备，可以在步骤303之前进行通知，网络设备确定了可用的多个波束对后，便可为每个波束对分配禁止定时器，并通知终端设备。
如果专用SR资源有多个，分别映射到多个波束对上，针对SR资源设置禁止定时器或针 对可用波束对设置禁止定时器均可；如果SR资源只有一个，分别映射到多个波束对上，则通常针对可用波束对设置禁止定时器，可以网络设备配置，也可以终端设备根据网络设备下发的禁止定时器为每个波束对配置。
因此，当NR用其他专用资源，比如：SR域，来发送调度请求时，如果为终端设备配置Y≥1个关联到Y个波束对的SR资源，这对于允许终端设备用多个波束对发送SR是有益处的。例如，给终端设备配置了2个SR资源，分别关联到2个波束对。在某个SR域的子帧内，终端设备用在这两个波束对上都发送了SR，然而因为波束阻断，只有一个波束对成功发送了SR。接着，网络设备在后续某个帧内，用这个成功的波束对在两个PDCCH符号上都发送上行调度(UL grant)信息。终端设备则在一段时间内扫描这两个波束对接收PDCCH，因而，它仍然能接收到该信息。在同样场景下，如果只配置一个SR资源，用户终端则可能错过该信息，因为，此时网络设备只在一个PDCCH符号上发送该信息，同时用户终端也不确定用哪个波束来接收PDCCH。因此，相比只配一个SR资源，配置多个SR资源(可能只是资源编号不同，并不增加实际的资源开销)，在用多个波束对发送SR后，网络设备仍可以实现灵活的响应请求的发送，而一个SR资源的方式，需知道网络设备进行响应发送的固定位置。
在又一个实施例中，网络设备为终端设备分配专用SR资源，终端设备获取可以发送SR的最大波束数量，然后用不超过该数量的发送波束发送SR，和上面的图3实施例相比，不需要为专用SR资源与可用波束对建立关联关系，更加简单灵活。
参考图4，该方法包括：
401、网络设备为终端设备配置专用SR资源；
这里的专用SR资源为一个，进一步的可以为该SR资源配置一个禁止定时器(sr-ProhibitTimer)，并将该专用SR资源及禁止定时器通知终端设备；该过程与步骤301类似，其它的说明可以参考步骤301，这里不再详述；
402、终端设备获取发送SR的最大波束数量；
该步骤可选，终端设备发送SR的最大波束数量可以由标准来定义，因此终端设备本身就知道，例如协议规定2，4或6个；另外，网络设备也可以将发送SR的最大波束数量通知终端设备，从而终端设备获知，通知的方式可以为RRC信令、MAC CE或DCI信令，也可以为其它通知方式，指示终端设备在一段时间内发送调度请求的发送波束数目。
所述一段时间可以为一个PRACH(physical random access channel，物理随机接入信道)子帧、预设的一个时间窗口或为所述禁止定时器的时长。所述一段时间通常不大于所述禁止定时器的时长。另外，所述一段时间也可能是协议规定的，例如协议规定所述一段时间为多 少毫秒，或规定为所述禁止定时器的时长。
403、终端设备用分配的专用SR资源通过不超过最大波束数量的发送波束发送SR；
终端设备可以在上述一段时间内通过小于或等于的所述最大波束数量的发送波束采用相应的专用SR资源发送调度请求。
终端设备发送调度请求后，启动禁止定时器和相应的计数器。在所述一段时间内，相同发送波束不能再次发送SR，不同发送波束可以发送SR，即不同发送波束发送SR不受禁止定时器约束。但相同波束在禁止定时器运行期间，不能再次发送调度请求。计数器可以只在每次禁止定时器启动/重新启动时才加1或者每次发送调度请求都加1，这与协议规定相关。
当SR超过最大重传时终端设备需释放所有SR的专用资源，清除所有SR的Pending状态；并进一步的可以在可用的波束对上发起随机接入。
如果终端设备收到网络设备发送的针对SR的响应消息，如UL grant信息，则终端设备停止所有SR的sr-ProhibitTimer，重置计数器。
相应的，网络设备可以通过同步波束在所述专用SR资源的位置接收终端设备发送的调度请求。
该实施例和上面的图3的实施例类似，主要区别在于终端设备不需要将专用SR资源与可用波束对进行关联，更加简单灵活，专业SR资源的分配，禁止定时器的设置及SR的发送接收均与上面的实施例类似，可以参考图3实施例相应步骤的描述。
在下一个实施例中，网络设备为终端设备分配由上行控制信道(如，NR-PUCCH)承载的SR资源和专用SR资源，用于终端设备发送SR，并且与可用上行波束对建立关联关系，该实施例为上述两个实施例的组合，该方法包括：
501、网络设备为终端设备配置由上行控制信道承载的SR资源和专用SR资源；
网络设备为终端设备配置由上行控制信道承载的SR资源可以参考步骤201，网络设备为终端设备配置专用SR资源可以参考步骤301；网络设备可以为终端设备分配上述两种类型的SR资源，并且通知终端设备，通知方式可以采用RRC信令或DCI，也可以采用其它方式。
另外，网络设备可以为每个SR资源配置一个禁止定时器(sr-ProhibitTimer)，并通知终端设备，可以与分配的SR资源一起通过RRC消息通知。
502、网络设备与终端设备分别确定可用的多个上行波束对；
该步骤可以参考步骤202，不再详述。
503、网络设备配置所述由上行控制信道承载的SR资源与多个上行波束对的映射关系，并通知终端设备；该步骤可以参考步骤203，不再详述。
504、终端设备将所述专用SR资源关联到多个上行波束对；
该步骤可以参考步骤303，不再详述。
505、终端设备通过所述多个上行波束对采用相应的SR资源发送SR。
该步骤可参考步骤204及304；
网络设备通过所述多个上行波束对的接收波束接收由上行控制信道的SR资源承载的SR，网络设备通过所述多个上行波束对的接收波束对应的同步波束接收由专用SR资源承载的SR。
上述的方法实施例可以看做前面2个方法实施例的组合，具体的细节可以参考前面2个方法实施例中的描述。
和上述图2方法实施例中的网络设备对应，还公开了一种网络设备，参考图5，包括：
配置模块501：用于为终端设备配置由上行控制信道承载的用于调度请求的SR资源；以及为所述终端设备配置所述SR资源与可用的多个上行波束对的映射关系；
接收模块502：用于接收所述终端设备通过所述多个上行波束对采用相应的SR资源发送的调度请求。
其中，所述配置模块包括：
处理模块：将为终端设备分配由上行控制信道承载的用于调度请求的SR资源；
发送模块：用于将分配的SR资源通知所述终端设备；
所述处理模块还用于将所述SR资源映射到所述多个上行波束对；
所述发送模块还用于将所述SR资源与所述多个上行波束映射关系通知所述终端设备。
另外，上述网络设备可以只包括发送模块，接收模块及处理模块。
上述网络设备与方法实施例中的网络设备完全对应，由相应的模块执行相应的步骤，例如发送模块方法执行方法实施例中发送或通知的步骤，接收模块执行方法实施例中接收的步骤，其它步骤，如分配SR资源、分配禁止定时器、确定可用波束对、映射等，可以由处理模块实现，上述内容只列举了一部分功能，其它功能可以参考方法实施例相应的步骤及发明内容部分的描述。
和上述图2方法实施例中的终端设备对应，还公开了一种终端设备，参考图6，包括：
接收模块601：用于获取网络设备为所述终端设备配置的由上行控制信道承载的SR资源，以及获取所述网络设备为所述终端设备配置的所述SR资源与所述多个上行波束对的映射关系；
发送模块602：用于通过所述多个上行波束对采用相应的SR资源发送SR。
该终端设备还进一步包括处理模块(图中未示出)：用于执行方法实施例除发送及接收步骤之外的其它步骤。
上述终端设备与方法实施例中的网络设备完全对应，由相应的模块执行相应的步骤，例如发送模块方法执行方法实施例中发送或通知的步骤，接收模块执行方法实施例中接收的步骤，其它步骤，如确定波束对数量，启动禁止定时器等，可以由处理模块实现，上述内容只列举了一部分功能，其它功能可以参考方法实施例相应的步骤及发明内容部分的描述。
和上述图3方法实施例中的终端设备对应，还公开了一种终端设备，参考图7，包括：
接收模块701：用于获取网络设备为所述终端设备分配的专用SR资源；
处理模块702：用于将所述专用SR资源与可用的多个上行波束对进行关联；
发送模块703：用于通过所述多个上行波束对在相应的专用SR资源发送调度请求。
上述终端设备与方法实施例中的网络设备完全对应，由相应的模块执行相应的步骤，例如发送模块方法执行方法实施例中发送或通知的步骤，接收模块执行方法实施例中接收的步骤，其它步骤，如确定波束对数量，启动禁止定时器等，可以由处理模块实现，上述内容只列举了一部分功能，其它功能可以参考方法实施例相应的步骤及发明内容部分的描述。
和上述图3方法实施例中的网络设备对应，还公开了一种网络设备，参考图8，包括：
配置模块801：用于为终端设备配置专用SR资源，以使得所述终端设备将所述专用SR资源与可用的多个上行波束对进行关联；
接收模块802：用于接收所述终端设备通过所述多个上行波束对在相应的专用SR资源发送的SR。
其中，所述配置模块包括：
处理模块：用于为终端设备分配专用SR资源；
发送模块：用于将所述为终端设备分配的专用SR资源通知终端设备。
另外，上述网络设备可以只包括发送模块，接收模块及处理模块。
上述网络设备与方法实施例中的网络设备完全对应，由相应的模块执行相应的步骤，例如发送模块方法执行方法实施例中发送或通知的步骤，接收模块执行方法实施例中接收的步骤，其它步骤，如分配SR资源、分配禁止定时器等，可以由处理模块实现，上述内容只列举了一部分功能，其它功能可以参考方法实施例相应的步骤及发明内容部分的描述。
和上述图4方法实施例中的终端设备对应，还公开了一种终端设备，参考图6，包括：
接收模块601：用于获取网络设备为所述终端设备配置的专用SR资源；
发送模块602：用于采用所述专用SR资源通过不超过最大波束数量的发送波束发送SR。
该终端设备还进一步包括处理模块(图中未示出)：用于执行方法实施例除发送及接收步骤之外的其它步骤。
和上述图4方法实施例中的网络设备对应，还公开了一种网络设备，参考图8，包括：
配置模块801：用于为终端设备配置专用SR资源；
接收模块802：用于接收所述终端设备采用所述专用SR资源通过不超过最大波束数量的发送波束发送的SR。
其中：配置模块包括：处理模块：为终端设备分配专用SR资源；发送模块：用于将分配的SR资源通知终端设备，通知的方式可以采用RRC信令或其它方式。
另外，上述网络设备可以只包括发送模块，接收模块及处理模块。
上述网络设备和终端设备与又一方面的方法中的网络设备及终端设备完全对应，由相应的模块执行相应的步骤，例如发送模块方法执行方法实施例中发送或通知的步骤，接收模块执行方法实施例中接收的步骤，其它步骤，如分配SR资源、分配禁止定时器等，可以由处理模块实现，上述内容只列举了一部分功能，其它功能可以参考方法实施例相应的步骤及发明内容部分的描述。
通过上述方法及装置，网络设备为终端设备配置一个或多个SR资源，并利用相应的方法，实现终端设备能够用多个波束对进行调度请求，有利于缩短SR发送的周期，减少终端设备等待周期性SR资源的时间。同时，NR中在波束失败的情况下，也可以通过SR资源来发起波束恢复请求，结合本实施例的方法，利用多个波束对进行发送，能够提高波束恢复请求信号发送成功的概率。
上述各个实施例仅仅针对调度请求的传输给出了实施例，但事实上，对于上行控制信道承载的其他内容，比如ACK/NACK、CQI(channel quality indicator，信道质量指示)、PMI(precoding matrix indication，预编码矩阵指示)等，都可以通过配置多个上行控制信道资源的方式，实现基于多个波束对的上行传输，从而可以增强上行链路的鲁棒性，具体方式和上述实施例类似，不再详述。
上述各个实施例的网络设备与终端设备还有另一形式的实施例，处理模块可以由处理器替代，发送模块可以由发射机替代，接收模块可以由接收机替代，分别执行方法实施例中的发送操作、接收操作以及相关的处理操作，发射机及接收机可以组成收发器。
上述另一形式的装置实施例具体结构可参看图9，其中，处理器可以是通用处理器、数字信号处理器、专用集成电路、现场可编程门阵列或者其他可编程逻辑器件。
发射机和接收机可以组成收发机。还可以进一步包括天线，天线的数量可以为一个或多个。
上述各个组件可以通过总线耦合在一起，其中总线除包括数据总线之外，还包括电源总线、控制总线和状态信号总线。但是为了清楚说明起见，在图中将各种总线都标为总线。
上述图9只是示意图，还有可以包括其它元件或只包括部分元件，例如包括发射机及接收机；或者只包括发射机、接收机及处理器。
进一步的，在一种具体的实施例中，还可以包括存储器(图中未示出)，用于存储计算机可执行程序代码，其中，当所述程序代码包括指令，当所述处理器执行所述指令时，所述指令使所述网络设备或终端设备执行方法实施例中的相应步骤，另外，存储器也可以为于处理器中。
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申请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。
以上所揭露的仅为本申请实施例而已，当然不能以此来限定本申请之权利范围，因此依本申请权利要求所作的等同变化，仍属本申请所涵盖的范围。

Claims (14)

  1. 一种调度请求的传输方法，包括：
    网络设备为终端设备配置由上行控制信道承载的调度请求SR资源；
    所述网络设备为所述终端设备配置所述SR资源与可用的多个上行波束对的映射关系；
    所述网络设备接收所述终端设备通过所述多个上行波束对采用相应的SR资源发送的调度请求。
  2. 如权利要求1所述的方法，其中，所述SR资源为多个时，所述网络设备为所述终端设备配置所述SR资源与所述多个上行波束对的映射关系包括：
    将所述多个SR资源映射到所述多个上行波束对，并将所述多个SR资源与所述多个上行波束对的映射关系通知终端设备；或
    所述SR资源为一个时，所述网络设备为所述终端设备配置所述SR资源与所述多个上行波束对的映射关系包括：
    将所述一个SR资源映射到所述多个上行波束对，并将所述SR资源与所述多个上行波束对的映射关系通知终端设备。
  3. 一种调度请求的传输方法，包括：
    终端设备获取网络设备为所述终端设备配置的由上行控制信道承载的调度请求SR资源，
    所述终端设备获取所述网络设备为所述终端设备配置的所述SR资源与所述多个上行波束对的映射关系；
    所述终端设备通过所述多个上行波束对采用相应的SR资源发送调度请求。
  4. 如权利要求3所述的方法，当所述多个上行波束的SR都超过最大重传次数时，所述终端设备释放所有SR资源，并发起随机接入。
  5. 一种调度请求的传输方法，包括：
    终端设备获取网络设备为所述终端设备配置的专用调度请求SR资源；
    所述终端设备将所述专用SR资源与可用的多个上行波束对进行关联；
    终端设备通过所述多个上行波束对在相应的专用SR资源发送调度请求。
  6. 如权利要求5所述的方法，其中所述专用SR资源为一个或多个，将所述专用SR资源与所述多个上行波束对进行关联包括：
    将一个专用SR资源关联到多个上行波束对，或将所述多个专用SR资源关联到所述多个上行波束对。
  7. 一种调度请求的传输方法，包括：
    网络设备为终端设备配置专用调度请求SR资源，以使得所述终端设备将所述专用SR资 源与可用的多个上行波束对进行关联；
    网络设备接收所述终端设备通过所述多个上行波束对在相应的专用SR资源发送的SR。
  8. 如权利要求7所述的方法，其中，所述网络设备通过所述多个上行波束对的接收波束对应的同步波束接收所述终端设备发送的SR。
  9. 一种网络设备，包括：
    配置模块：用于为终端设备配置由上行控制信道承载的调度请求SR资源；以及为所述终端设备配置所述SR资源与可用的多个上行波束对的映射关系；
    接收模块：用于接收所述终端设备通过所述多个上行波束对采用相应的SR资源发送的调度请求。
  10. 如权利要求9所述的方法，其中，所述配置模块包括：
    处理模块：将为终端设备分配由上行控制信道承载的调度请求SR资源；
    发送模块：用于将分配的SR资源通知所述终端设备；
    所述处理模块还用于将所述SR资源映射到所述多个上行波束对；
    所述发送模块还用于将所述SR资源与所述多个上行波束映射关系通知所述终端设备。
  11. 一种终端设备，包括：
    接收模块：用于获取网络设备为所述终端设备配置的由上行控制信道承载的调度请求SR资源，以及获取所述网络设备为所述终端设备配置的所述SR资源与所述多个上行波束对的映射关系；
    发送模块：用于通过所述多个上行波束对采用相应的SR资源发送调度请求。
  12. 一种终端设备，包括：
    接收模块：用于获取网络设备为所述终端设备分配的专用调度请求SR资源；
    处理模块：用于将所述专用SR资源与可用的多个上行波束对进行关联；
    发送模块：用于通过所述多个上行波束对在相应的专用SR资源发送调度请求。
  13. 一种网络设备，包括：
    配置模块：用于为终端设备配置专用调度请求SR资源，以使得所述终端设备将所述专用SR资源与可用的多个上行波束对进行关联；
    接收模块：用于接收所述终端设备通过所述多个上行波束对在相应的专用SR资源发送的调度请求。
  14. 如权利要求13所述的方法，其中，所述配置模块包括：
    处理模块：用于为终端设备分配专用SR资源；
    发送模块：用于将所述为终端设备分配的专用SR资源通知终端设备。
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