WO2019183966A1 - 用于随机接入的方法和设备 - Google Patents

用于随机接入的方法和设备 Download PDF

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Publication number
WO2019183966A1
WO2019183966A1 PCT/CN2018/081459 CN2018081459W WO2019183966A1 WO 2019183966 A1 WO2019183966 A1 WO 2019183966A1 CN 2018081459 W CN2018081459 W CN 2018081459W WO 2019183966 A1 WO2019183966 A1 WO 2019183966A1
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WO
WIPO (PCT)
Prior art keywords
bwp
downlink
uplink
mapping relationship
terminal device
Prior art date
Application number
PCT/CN2018/081459
Other languages
English (en)
French (fr)
Inventor
石聪
Original Assignee
Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to BR112020019126-4A priority Critical patent/BR112020019126A2/pt
Priority to EP18912134.6A priority patent/EP3720234B1/en
Priority to MX2020010296A priority patent/MX2020010296A/es
Priority to CN201880067572.8A priority patent/CN111247865A/zh
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to JP2020549582A priority patent/JP2021521665A/ja
Priority to CA3095493A priority patent/CA3095493A1/en
Priority to PCT/CN2018/081459 priority patent/WO2019183966A1/zh
Priority to AU2018415389A priority patent/AU2018415389A1/en
Priority to RU2020133846A priority patent/RU2761597C1/ru
Priority to KR1020207026949A priority patent/KR20200138212A/ko
Priority to SG11202009630QA priority patent/SG11202009630QA/en
Priority to CN202010505218.8A priority patent/CN111757393B/zh
Publication of WO2019183966A1 publication Critical patent/WO2019183966A1/zh
Priority to US16/932,598 priority patent/US11140721B2/en
Priority to ZA2020/06069A priority patent/ZA202006069B/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access, e.g. scheduled or random access
    • H04W74/08Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
    • H04W74/0833Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure
    • H04W74/0841Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure with collision treatment
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/16Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18Negotiating wireless communication parameters
    • H04W28/20Negotiating bandwidth
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453Resources in frequency domain, e.g. a carrier in FDMA
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access, e.g. scheduled or random access
    • H04W74/08Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
    • H04W74/0833Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • Embodiments of the present application relate to the field of communications and, more particularly, to methods and apparatus for random access.
  • BWP Bandwidth Part
  • the network device may configure one or more uplink BWPs for the terminal device, and may also configure one or more downlink BWPs for the terminal device, but only one active downlink BWP and one active uplink BWP may be at a time.
  • a method for random access where a terminal device determines a target uplink bandwidth portion BWP and/or a target downlink BWP for random access;
  • the terminal device initiates a contention random access on the target uplink and/or downlink BWP.
  • the target uplink bandwidth portion BWP and/or the target downlink BWP for random access may be determined, so that the uplink BWP and the downlink BWP that the terminal device can use for random access are A pair of BWPs in which the terminal device and the network device can reach a consensus can improve the power of the terminal device to successfully receive the RAR, thereby improving the probability of successful random access.
  • the terminal device may determine not to perform downlink BWP handover, or if the currently activated downlink BWP is an initial downlink BWP, in this case, the terminal The device may also not perform BWP switching. Or if the currently activated uplink BWP is the initial uplink BWP, and the currently activated downlink BWP is not the initial downlink BWP, the terminal device may switch the currently activated downlink BWP to the initial downlink BWP.
  • the terminal device determines the target downlink BWP according to the currently activated first uplink BWP.
  • the terminal device may also re-determine a group of uplink and downlink BWPs with the mapping relationship as the target uplink BWP and the target downlink BWP, that is, the current activation
  • the uplink and downlink BWPs are switched to a set of uplink and downlink BWPs with mapping relationships, and then random access is initiated.
  • the terminal device determines the target downlink BWP according to the currently activated first uplink BWP, including:
  • the terminal device determines that the initial downlink BWP is the target downlink BWP.
  • the determining, by the terminal device, the target downlink BWP according to the first uplink BWP and the first mapping relationship including:
  • the terminal device determines that The first downlink BWP is the target downlink BWP.
  • the determining, by the terminal device, the target downlink BWP according to the first uplink BWP and the first mapping relationship including:
  • the terminal device determines a target uplink bandwidth part BWP and/or a target downlink BWP for random access, including:
  • the terminal device determines that the currently activated downlink BWP is the target downlink BWP.
  • the terminal device determines a target uplink bandwidth part BWP and/or a target downlink BWP for random access, including:
  • the terminal device determines that the currently activated uplink BWP or the initial uplink BWP is the target uplink BWP.
  • the method further includes:
  • the terminal device switches the currently activated first uplink BWP to the second uplink BWP, and switches the currently activated downlink BWP to the second uplink BWP mapped downlink BWP.
  • the method further includes:
  • the terminal device switches the currently activated first downlink BWP to the second downlink BWP, and switches the currently activated uplink BWP to an uplink BWP mapped with the second downlink BWP.
  • the uplink and downlink BWPs can be simultaneously switched according to the first mapping relationship, so that the simultaneously activated uplink BWP and the downlink BWP are the BWPs with the mapping relationship, and the probability of successful RAR reception is improved.
  • the first mapping relationship is a mapping relationship between an uplink BWP and a downlink BWP.
  • the first mapping relationship is a mapping relationship between a BWP index of the uplink BWP and a BWP index of the downlink BWP.
  • the BWP index K of the uplink BWP is mapped to the BWP index k of the downlink BWP, where K, k are integers, and k is K to M.
  • M is the number of downlink BWPs configured by the network device.
  • the first mapping relationship is a mapping relationship between a random access resource and a downlink BWP configured on the uplink BWP.
  • the first mapping relationship is a mapping relationship between a random access resource and a BWP index of the downlink BWP.
  • the terminal device initiates contention random access on the target uplink and/or downlink BWP, including:
  • the terminal device receives the random access response RAR sent by the network device on the target downlink BWP.
  • the method further includes:
  • the terminal device switches the currently activated downlink BWP to the target downlink BWP.
  • a method for random access comprising:
  • the terminal device simultaneously switches the uplink BWP and the downlink BWP that are currently activated by the terminal device according to the first mapping relationship, where the first mapping relationship is used to determine the BWP of the second BWP mapping.
  • the uplink and downlink BWPs can be simultaneously switched according to the first mapping relationship, so that the simultaneously activated uplink BWP and the downlink BWP are the BWPs with the mapping relationship, and the probability of successful RAR reception is improved.
  • the terminal device simultaneously switches the uplink BWP and the downlink BWP that are currently activated by the terminal device according to the first mapping relationship, including:
  • the terminal device switches the currently activated uplink BWP from the first BWP to the second BWP, and switches the currently activated downlink BWP to the The downlink BWP of the second BWP mapping.
  • the terminal device simultaneously switches the uplink BWP and the downlink BWP that are currently activated by the terminal device according to the first mapping relationship, including:
  • the terminal device switches the currently activated downlink BWP from the first BWP to the second BWP, and switches the currently activated uplink BWP to the The uplink BWP of the second BWP mapping.
  • the first mapping relationship is a mapping relationship between an uplink BWP and a downlink BWP.
  • the first mapping relationship is a mapping relationship between a BWP index of the uplink BWP and a BWP index of the downlink BWP.
  • the BWP index K of the uplink BWP is mapped to the BWP index k of the downlink BWP, where K, k are integers, and k is K to M.
  • M is the number of downlink BWPs configured by the network device.
  • the first mapping relationship is a mapping relationship between a random access resource and a downlink BWP configured on the uplink BWP.
  • the first mapping relationship is a mapping relationship between a random access resource and a BWP index of the downlink BWP.
  • an apparatus for random access for performing the method of any of the first aspect or the first aspect of the first aspect.
  • the apparatus comprises means for performing the method of any of the above-described first aspect or any of the possible implementations of the first aspect.
  • an apparatus for random access comprising: a memory, a processor, an input interface, and an output interface.
  • the memory, the processor, the input interface, and the output interface are connected by a bus system.
  • the memory is for storing instructions for executing the memory stored instructions for performing the method of any of the first aspect or the first aspect of the first aspect.
  • an apparatus for random access for performing the method of any of the above-described second aspect or any of the possible implementations of the second aspect.
  • the apparatus comprises means for performing the method of any of the possible implementations of the second aspect or the second aspect described above.
  • an apparatus for random access comprising: a memory, a processor, an input interface, and an output interface.
  • the memory, the processor, the input interface, and the output interface are connected by a bus system.
  • the memory is for storing instructions for executing the memory stored instructions for performing the method of any of the possible implementations of the second aspect or the second aspect above.
  • a computer storage medium for storing computer software instructions for performing the method of any of the above first aspect or any of the possible implementations of the first aspect, comprising program.
  • a computer program product comprising instructions, when executed on a computer, causes the computer to perform the method of any of the above-described first aspect or any of the alternative implementations of the first aspect.
  • a ninth aspect a computer storage medium for storing computer software instructions for performing the method of any of the above second aspect or any of the possible implementations of the second aspect, comprising program.
  • a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of any of the alternative aspects of the second aspect or the second aspect.
  • FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present application.
  • FIG. 2 is a schematic flowchart of a method for random access according to an embodiment of the present application.
  • FIG. 3 is a schematic diagram showing an example of a first mapping relationship in the embodiment of the present application.
  • FIG. 4 is a schematic diagram showing another example of the first mapping relationship in the embodiment of the present application.
  • FIG. 5 is a schematic flowchart of a method for random access according to another embodiment of the present application.
  • FIG. 6 shows a schematic block diagram of an apparatus for random access according to an embodiment of the present application.
  • FIG. 7 shows a schematic block diagram of a device for random access according to another embodiment of the present application.
  • FIG. 8 shows a schematic block diagram of an apparatus for random access according to an embodiment of the present application.
  • FIG. 9 is a schematic block diagram of an apparatus for random access according to another embodiment of the present application.
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • FIG. 1 shows a wireless communication system 100 to which an embodiment of the present application is applied.
  • the wireless communication system 100 can include a network device 110.
  • Network device 100 can be a device that communicates with a terminal device.
  • Network device 100 can provide communication coverage for a particular geographic area and can communicate with terminal devices (e.g., UEs) located within the coverage area.
  • the network device 100 may be an evolved base station (Evolutional Node B, eNB or eNodeB) in an LTE system, or a wireless controller in a Cloud Radio Access Network (CRAN), or the network.
  • the device may be a relay station, an access point, an in-vehicle device, a wearable device, a network side device in a future 5G network, or a network device in a future evolved Public Land Mobile Network (PLMN).
  • PLMN Public Land Mobile Network
  • the wireless communication system 100 also includes at least one terminal device 120 located within the coverage of the network device 110.
  • Terminal device 120 can be mobile or fixed.
  • the terminal device 120 may refer to an access terminal, a user equipment (User Equipment, UE), 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, and a wireless communication.
  • the access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), with wireless communication.
  • the 5G system or network may also be referred to as a New Radio (NR) system or network.
  • NR New Radio
  • the wireless communication system 100 may further include other network entities, such as a network controller, a mobility management entity, and the like.
  • network entities such as a network controller, a mobility management entity, and the like.
  • FIG. 1 exemplarily shows one network device and two terminal devices.
  • the wireless communication system 100 may include a plurality of network devices and may include other numbers of terminal devices within the coverage of each network device. The application embodiment does not limit this.
  • the random access technology is the primary content of communication between the terminal device and the network device in the mobile communication system.
  • the terminal device in the wireless cellular network can initiate a connection request to the network side through a random access procedure.
  • the random access process mainly includes the following steps:
  • S1 is firstly used for the transmission of a random access preamble.
  • the network device can be used to correctly estimate the transmission delay of the terminal device, and solve the conflict problem that multiple terminal devices simultaneously initiate an access request.
  • the random access preamble may also be referred to as Msg1.
  • the network device sends a random access response (RAR) to the terminal device, where the RAR includes a transmission delay required for uplink synchronization, and an access overload condition of the current system.
  • RAR random access response
  • the network device may also feed back the uplink resource location information allocated to the terminal device to the terminal device.
  • the terminal device sends a message corresponding to the random access event and the terminal device identifier of the terminal device itself on the specified uplink resource.
  • the network device feeds back the conflict resolution information to the terminal device.
  • FIG. 2 is a schematic flowchart of a method 200 for random access provided by an embodiment of the present application.
  • the method 200 may be performed by a terminal device in a communication system. As shown in FIG. 2, the method 200 includes:
  • the terminal device determines a target uplink bandwidth part BWP and/or a target downlink BWP for random access.
  • the terminal device initiates a contention random access on the target uplink and/or downlink BWP.
  • the target uplink bandwidth part BWP and/or the target downlink BWP for random access may be determined.
  • the terminal device is used for random access.
  • the uplink BWP and the downlink BWP may be a pair of BWPs that the terminal device and the network device can reach a consensus. Therefore, the random access resource (ie, the physical random access channel (Physical Random Access channel) configured by the terminal device through the certain uplink BWP.
  • the network device can reply to the RAR on the corresponding downlink BWP. Accordingly, the terminal device can receive the RAR on the corresponding downlink BWP, so that the terminal device can be successfully received.
  • the power of the RAR can further increase the probability of successful random access.
  • the uplink BWP and the downlink BWP may be in a mapping relationship. Therefore, the terminal device may determine the target downlink BWP for random access according to the currently activated uplink BWP. For example, the current determination may be determined.
  • the downlink BWP mapped by the activated uplink BWP is the target downlink BWP; or the terminal device may re-determine a set of uplink and downlink BWPs with the mapping relationship as the target uplink BWP and the target downlink BWP, that is, the currently activated uplink and downlink BWP switching. Go to a set of uplink and downlink BWPs with mapping relationship, and then initiate random access.
  • the uplink BWP currently activated by the terminal device is the uplink BWP1
  • the currently activated downlink BWP is the downlink BWP0
  • the downlink BWP mapped by the uplink BWP1 is the downlink BWP1
  • the currently activated uplink BWP and the downlink BWP do not have a mapping relationship.
  • the terminal device can switch the currently activated downlink BWP to the downlink BWP1, and then initiate random access, or the terminal device can also switch the currently activated uplink BWP to the uplink BWP2, and switch the currently activated downlink BWP to Downstream BWP2, and then initiate random access, wherein the uplink BWP2 and the downlink BWP2 are BWPs having a mapping relationship.
  • the target downlink BWP may be a downlink BWP of the uplink BWP mapping currently activated by the terminal device, or an initial downlink BWP, or may also be a currently activated downlink BWP. Not limited.
  • the terminal device may determine not to perform downlink BWP handover; or, if the currently activated downlink BWP is an initial downlink BWP, this In this case, the terminal device may not perform the BWP handover.
  • the terminal device may switch the currently activated downlink BWP to the initial. Downstream BWP and so on.
  • the target uplink BWP may be an initial uplink BWP, or a currently activated uplink BWP, which is not limited in this embodiment of the present application.
  • the terminal device may determine that the uplink BWP is not to be switched, or if the currently activated uplink BWP is the initial uplink BWP, in this case, The terminal device may also not perform BWP switching. Or if the currently activated downlink BWP is the initial downlink BWP, and the currently activated uplink BWP is not the initial uplink BWP, the terminal device may switch the currently activated uplink BWP to the initial uplink BWP and the like.
  • the S210 may specifically include:
  • the terminal device can determine that the first downlink BWP is the target downlink BWP, and further, The currently activated downlink BWP can be switched to the first downlink BWP. In this case, the active uplink BWP and the downlink BWP are mapped, and the terminal device sends the Msg1 on the first uplink BWP.
  • the RAR is received on the first downlink BWP of the first uplink BWP mapping.
  • the RAR may be sent on the first downlink BWP corresponding to the first uplink BWP, that is, the downlink BWP where the terminal device and the network device send the RAR.
  • a consensus can be reached to improve the probability that the terminal device successfully receives the RAR.
  • the terminal device may determine that the initial downlink BWP is the target downlink BWP, or may also determine that the downlink BWP is not to be switched, that is, keep the currently activated downlink BWP. Random access is performed on it.
  • the determining, by the terminal device, the target downlink BWP according to the currently activated first uplink BWP including:
  • the target downlink BWP according to the first uplink BWP and the first mapping relationship, where the first mapping relationship is used to determine a downlink BWP of the first uplink BWP mapping.
  • the uplink BWP and the downlink BWP may have a certain mapping relationship.
  • the mapping relationship between the uplink BWP and the downlink BWP may be one-to-one, or one-to-many, or many-to-one, or multiple pairs.
  • the embodiment of the present application does not limit this.
  • one downlink BWP may correspond to one uplink BWP, or one downlink BWP may correspond to multiple uplink BWPs, or some uplink BWPs may not correspond to any downlink BWP, or some downlink BWPs may not correspond to any uplink BWP, etc., the present application.
  • the embodiment does not limit this.
  • the first mapping relationship may be a mapping relationship between a BWP index (index) of the uplink BWP and a BWP index of the downlink BWP.
  • the uplink BWP 1 is mapped to the downlink BWP 1
  • the upstream BWP 2 is mapped to the downlink BWP 2, and the like.
  • the uplink BWP 1 maps to the downlink BWP M
  • the uplink BWP 2 maps to the downlink BWP M-1 and the like.
  • the BWP index K of the uplink BWP is mapped to the BWP index k of the downlink BWP, where K, k are integers, and k is a result of modulo K and M, M is the number of downlink BWPs configured for the network device.
  • the number of the downlink BWPs configured by the network device may include the initial downlink BWP, and may not include the initial downlink BWP. If the initial downlink BWP is included, the non-initial uplink BWP may be mapped to the initial downlink BWP after modulo; if the initial downlink BWP is not included, the non-initial uplink BWP will not be mapped to the initial downlink BWP after modulo.
  • the uplink BWP includes BWP0 to BWP3 and the initial uplink BWP
  • the downlink BWP includes BWP0, BWP1, and the initial downlink BWP
  • the number of downlink BWPs is 2 (excluding the initial downlink BWP)
  • the uplink BWP0 can be mapped to the downlink BWP0
  • the uplink BWP1 is mapped to the downlink BWP1
  • the uplink BWP2 is mapped to the downlink BWP0
  • the uplink BWP3 is mapped to the downlink BWP1.
  • the initial uplink BWP may be mapped to the initial downlink BWP.
  • the uplink BWP includes BWP1 - BWP3 and the initial uplink BWP (the index of the initial downlink BWP is recorded as 0), the downlink BWP includes BWP1, BWP2, and the initial downlink BWP, and the number of downlink BWPs is 3 (including the initial downlink BWP, The index of the initial downlink BWP is recorded as 0), according to the above mapping rule, the uplink BWP1 may be mapped to the downlink BWP1, the uplink BWP2 is mapped to the downlink BWP2, the uplink BWP3 is mapped to the initial downlink BWP, and the initial uplink BWP is also mapped to the initial downlink BWP.
  • the first mapping relationship is a mapping relationship between a random access resource and a downlink BWP configured on the uplink BWP.
  • the terminal device can determine which downlink BWP is mapped according to the PRACH resource configured on the currently activated uplink BWP, so that the downlink BWP of the mapping can be determined as the target downlink BWP, and correspondingly, the network device uses the PRACH used by the terminal device to send the Msg1.
  • the resource is combined with the first mapping relationship to determine that the RAR is sent on the downlink BWP mapped by the PRACH resource, so that the terminal device and the network device can reach a consensus on the downlink BWP where the RAR is sent, which is beneficial to improving the probability that the terminal device successfully receives the RAR. .
  • the first mapping relationship is a mapping relationship between a random access resource and a BWP index of the downlink BWP.
  • the random access resource may be used to indicate the corresponding uplink BWP, so that the first mapping relationship may be used to indirectly indicate the mapping relationship between the uplink BWP and the downlink BWP.
  • mapping relationship between the uplink BWP and the downlink BWP is only an example.
  • the uplink BWP and the downlink BWP may also be other mapping relationships.
  • the downlink BWP of the uplink BWP mapping may be determined, or the downlink may be determined.
  • the uplink BWP of the BWP mapping may be used, which is not limited in this embodiment of the present application.
  • the currently activated uplink BWP does not correspond to the currently activated downlink BWP, that is, the currently activated uplink and downlink BWP is not an uplink BWP having a mapping relationship (indicated as case 1), or The currently activated uplink BWP does not correspond to any downlink BWP (denoted as case 2).
  • This case 2 can also be considered as one of the cases 1. For convenience of description, it is recorded as two cases. In both cases, for the terminal device In terms of network equipment, it is necessary to reach a consensus on which downlink BWP to perform RAR transmission.
  • the determining, by the terminal device, the target downlink BWP according to the first uplink BWP and the first mapping relationship including:
  • the terminal device determines that The first downlink BWP is the target downlink BWP.
  • the terminal device may determine that the downlink BWP of the first uplink BWP mapping is the target downlink BWP, and further The currently activated downlink BWP may be switched to the target downlink BWP, and the first downlink BWP and the target downlink BWP initiate random access.
  • the determining, by the terminal device, the target downlink BWP according to the first uplink BWP and the first mapping relationship including:
  • the terminal device determines the initial downlink.
  • the BWP is the target downstream BWP.
  • the terminal device may determine that the initial downlink BWP is the target downlink BWP, and further, the current The activated downlink BWP is switched to the initial downlink BWP, and the first uplink BWP and the initial downlink BWP are randomly accessed.
  • the RAR may be returned in the initial downlink BWP, so that the terminal device receives the RAR on the initial downlink BWP.
  • the terminal device may also switch the currently activated first uplink BWP to the initial uplink BWP, and initiate random access on the initial uplink BWP and the target downlink BWP. This is not limited.
  • the currently activated uplink BWP is the uplink BWP2
  • the currently activated downlink BWP is the downlink BWP1, that is, the uplink BWP and the downlink BWP do not have a mapping relationship.
  • the terminal device can switch the currently activated downlink BWP1 to the downlink BWP0 mapped by the uplink BWP2, so that the switched downlink BWP0 and the currently activated uplink BWP2 have a mapping relationship, and then the terminal device can be in the uplink BWP2. And performing random access on the downlink BWP0, so that when the network device receives the Msg1 on the uplink BWP2, the RAR may be sent on the downlink BWP0 mapped by the uplink BWP2, so that the terminal device can receive the RAR on the downlink BWP0.
  • the terminal device may switch the currently activated downlink BWP1 to the initial downlink BWP, and then the terminal device may perform random access on the uplink BWP2 and the initial downlink BWP, so that when the network device receives the Msg1 on the uplink BWP2, The RAR is sent on the initial downlink BWP, so that the terminal device can receive the RAR on the initial downlink BWP.
  • the uplink BWP2 and the initial downlink BWP can be considered to have a mapping relationship.
  • the determining, by the terminal device, the target downlink BWP according to the first uplink BWP and the first mapping relationship including:
  • the terminal device determines that the initial downlink BWP is the target downlink BWP.
  • the network device receives the Msg1 on the first uplink BWP, and determines that the first uplink BWP is not mapped to any downlink BWP, the RAR may be replied to the initial downlink BWP, so that the terminal device is in the initial downlink BWP. Receive RAR on.
  • the first mapping relationship is as shown in FIG. 4, where the uplink BWP0 is mapped to the downlink BWP0, the uplink BWP1 is mapped to the downlink BWP1, the uplink BWP2 and the uplink BWP3 are not mapped to any downlink BWP, and the initial uplink BWP is mapped to the initial downlink. BWP.
  • the currently activated uplink BWP is the uplink BWP2
  • the currently activated downlink BWP is the downlink BWP1, that is, the uplink BWP and the downlink BWP do not have a mapping relationship.
  • the terminal device when the terminal device determines to switch the currently activated downlink BWP to the initial downlink BWP, the terminal device may also determine to switch the currently activated uplink BWP to the initial uplink BWP, and further, Random access may be initiated on the initial uplink BWP and the initial downlink BWP.
  • the terminal device may determine to switch the currently activated downlink BWP to the first.
  • the downlink BWP of the uplink BWP mapping may also be switched to the initial downlink BWP, and then the random access is initiated on the first uplink BWP and the downlink BWP mapped by the first uplink BWP, or the first uplink BWP and the initial downlink BWP. Random access is initiated on.
  • the terminal device may also switch the currently activated first uplink BWP to the initial uplink BWP, that is, the terminal device may initiate random access on the initial uplink BWP and the downlink BWP mapped by the first uplink BWP, or the terminal device Random access may be initiated on the initial uplink BWP and the initial downlink BWP.
  • the method 200 may further include:
  • the terminal device switches the currently activated first uplink BWP to the second uplink BWP, and switches the currently activated downlink BWP to the second uplink BWP mapped downlink BWP.
  • the method 200 further includes:
  • the terminal device switches the currently activated first downlink BWP to the second downlink BWP, and switches the currently activated uplink BWP to an uplink BWP mapped with the second downlink BWP.
  • the uplink and downlink BWPs can be simultaneously switched according to the first mapping relationship, so that the simultaneously activated uplink BWP and the downlink BWP are the BWPs with the mapping relationship, and the probability of successful RAR reception is improved.
  • the network device instructs the terminal device to switch the uplink BWP to the uplink BWP2, and the uplink BWP2 is mapped to the downlink BWP0, the terminal device may use the uplink BWP2. Switching from the uplink BWP1 to the uplink BWP2, and simultaneously switching the downlink BWP from the downlink BWP1 to the downlink BWP0.
  • FIG. 5 is a schematic flowchart of a method 500 for random access according to another embodiment of the present application.
  • the method 500 may be performed by a terminal device in the communication system shown in FIG. 1, as shown in FIG.
  • Method 500 includes the following:
  • the terminal device receives a handover instruction sent by the network device, where the handover instruction is used to indicate that the currently activated first bandwidth part BWP is switched to a second BWP, where the first BWP and the second BWP are Upstream BWP or down BWP;
  • S520 The terminal device simultaneously switches the uplink BWP and the downlink BWP that are currently activated by the terminal device according to the first mapping relationship, where the first mapping relationship is used to determine the BWP of the second BWP mapping.
  • the network device 700 instructs the terminal device to switch the uplink BWP to the uplink BWP2, and the uplink BWP2 is mapped to the downlink BWP0, the terminal device may uplink.
  • the BWP switches from the uplink BWP1 to the uplink BWP2, and simultaneously switches the downlink BWP from the downlink BWP1 to the downlink BWP0.
  • the terminal device can perform the switching of the uplink and downlink BWPs according to the first mapping relationship, so that the uplink and downlink BWPs after the handover can be the uplink and downlink BWPs with the mapping relationship, so that the terminal device and the network device reach a consensus on the downlink BWP for transmitting the RAR. It is beneficial to improve the probability that the terminal device successfully receives the RAR.
  • S520 may include:
  • the terminal device switches the currently activated uplink BWP from the first BWP to the second BWP, and switches the currently activated downlink BWP to the The downlink BWP of the second BWP mapping.
  • S520 may include:
  • the terminal device switches the currently activated downlink BWP from the first BWP to the second BWP, and switches the currently activated uplink BWP to the The uplink BWP of the second BWP mapping.
  • the first mapping relationship is a mapping relationship between an uplink BWP and a downlink BWP.
  • the first mapping relationship is a mapping relationship between a BWP index of the uplink BWP and a BWP index of the downlink BWP.
  • the BWP index K of the uplink BWP is mapped to the BWP index k of the downlink BWP, where K, k are integers, and k is a K pair.
  • M is the number of downlink BWPs configured by the network device.
  • the first mapping relationship is a mapping relationship between a random access resource and a downlink BWP configured on the uplink BWP.
  • the first mapping relationship is a mapping relationship between a random access resource and a BWP index of the downlink BWP.
  • first mapping relationship may be the first mapping relationship described in the foregoing, and may be specifically referred to in the foregoing description of the foregoing embodiments, and details are not described herein again.
  • the embodiment of the method of the present application is described in detail below with reference to FIG. 2 to FIG. 5 .
  • the device embodiment of the present application is described in detail below with reference to FIG. 6 to FIG. 9 . It should be understood that the device embodiment and the method embodiment correspond to each other, similarly. The description of the method can be referred to the method embodiment.
  • FIG. 6 shows a schematic block diagram of an apparatus 600 for random access in accordance with an embodiment of the present application.
  • the device 600 includes:
  • a determining module 610 configured to determine a target uplink bandwidth portion BWP and/or a target downlink BWP for random access;
  • the communication module 620 is configured to initiate contention random access on the target uplink and/or downlink BWP.
  • the determining module 610 is further configured to:
  • the target downlink BWP is determined according to the currently activated first uplink BWP.
  • the determining module 610 is further configured to:
  • the determining module 610 is further configured to:
  • the determining module 610 is further configured to:
  • the determining module 610 is further configured to:
  • the first uplink BWP is mapped to the first downlink BWP according to the first mapping relationship, and the first downlink BWP is not the downlink BWP currently activated by the device, determining that the initial downlink BWP is the target Downstream BWP.
  • the determining module 610 is further configured to:
  • the determining module 610 is further configured to:
  • the communication module 620 is further configured to:
  • the determining module 610 is further configured to: determine, according to the first mapping relationship, a downlink BWP of the second uplink BWP mapping;
  • the device 600 further includes:
  • a switching module configured to switch the currently activated first uplink BWP to the second uplink BWP, and switch the currently activated downlink BWP to the second uplink BWP mapped downlink BWP.
  • the communication module 620 is further configured to:
  • the determining module 610 is further configured to: determine, according to the first mapping relationship, an uplink BWP of the second downlink BWP mapping;
  • the device 600 further includes:
  • a switching module configured to switch the currently activated first downlink BWP to the second downlink BWP, and switch the currently activated uplink BWP to an uplink BWP mapped with the second downlink BWP.
  • the first mapping relationship is a mapping relationship between an uplink BWP and a downlink BWP.
  • the first mapping relationship is a mapping relationship between a BWP index of the uplink BWP and a BWP index of the downlink BWP.
  • the BWP index K of the uplink BWP is mapped to the BWP index k of the downlink BWP, where K, k are integers, and k is a K pair.
  • M is the number of downlink BWPs configured by the network device.
  • the first mapping relationship is a mapping relationship between a random access resource and a downlink BWP configured on the uplink BWP.
  • the first mapping relationship is a mapping relationship between a random access resource and a BWP index of the downlink BWP.
  • the communication module 620 is specifically configured to:
  • the device 600 further includes:
  • a switching module configured to switch the currently activated downlink BWP to the target downlink BWP if the downlink BWP currently activated by the device is different from the target downlink BWP.
  • the apparatus 600 for random access may correspond to the terminal apparatus in the method embodiment of the present application, and the foregoing and other operations and/or functions of the respective units in the apparatus 600 are respectively implemented for The corresponding flow of the terminal device in the method 200 shown in FIG. 2 is not described here for brevity.
  • FIG. 7 is a schematic block diagram of an apparatus for random access according to an embodiment of the present application.
  • the device 700 of Figure 7 includes:
  • the communication module 710 is configured to receive a handover instruction sent by the network device, where the handover instruction is used to indicate that the currently activated first bandwidth part BWP is switched to the second BWP, where the first BWP and the second BWP are Upstream BWP or down BWP;
  • the switching module 720 is configured to switch, according to the first mapping relationship, the uplink BWP and the downlink BWP that are currently activated by the device, where the first mapping relationship is used to determine the BWP of the second BWP mapping.
  • the switching module is specifically configured to:
  • first BWP and the second BWP are uplink BWPs, switching the currently activated uplink BWP from the first BWP to the second BWP, and switching the currently activated downlink BWP to the second BWP The downstream BWP of the map.
  • the switching module is specifically configured to:
  • first BWP and the second BWP are downlink BWPs, switch the currently activated downlink BWP from the first BWP to the second BWP, and switch the currently activated uplink BWP to the second BWP The mapped upstream BWP.
  • the first mapping relationship is a mapping relationship between an uplink BWP and a downlink BWP.
  • the first mapping relationship is a mapping relationship between a BWP index of the uplink BWP and a BWP index of the downlink BWP.
  • the BWP index K of the uplink BWP is mapped to the BWP index k of the downlink BWP, where K, k are integers, and k is a K pair.
  • M is the number of downlink BWPs configured by the network device.
  • the first mapping relationship is a mapping relationship between a random access resource and a downlink BWP configured on the uplink BWP.
  • the first mapping relationship is a mapping relationship between a random access resource and a BWP index of the downlink BWP.
  • the embodiment of the present application further provides a device 800 for random access, which may be the device 600 in FIG. 6 , which can be used to perform the method corresponding to the method 200 in FIG. 2 .
  • the device 800 includes an input interface 810, an output interface 820, a processor 830, and a memory 840, and the input interface 810, the output interface 820, the processor 830, and the memory 840 can be connected by a bus system.
  • the memory 840 is configured to store programs, instructions or code.
  • the processor 830 is configured to execute a program, an instruction or a code in the memory 840 to control the input interface 810 to receive a signal, control the output interface 820 to send a signal, and complete the operations in the foregoing method embodiments.
  • the processor 830 may be a central processing unit (“CPU"), and the processor 830 may also be other general-purpose processors, digital signal processors ( DSP), application specific integrated circuit (ASIC), off-the-shelf programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • each content of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 830 or an instruction in a form of software.
  • the content of the method disclosed in the embodiments of the present application may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory 840, and the processor 830 reads the information in the memory 840 and completes the contents of the above method in combination with its hardware. To avoid repetition, it will not be described in detail here.
  • the determining module 610 and the switching module included in the device 600 in FIG. 6 may be implemented by the processor 830 of FIG. 8.
  • the communication module 620 included in the device 600 of FIG. 6 may use the input interface 810 of FIG. And the output interface 820 is implemented.
  • the embodiment of the present application further provides a device 900 for random access, which may be the device 700 in FIG. 7, which can be used to execute a terminal corresponding to the method 500 of FIG.
  • the content of the device includes an input interface 910, an output interface 920, a processor 930, and a memory 940, and the input interface 910, the output interface 920, the processor 930, and the memory 940 can be connected by a bus system.
  • the memory 940 is for storing programs, instructions or code.
  • the processor 930 is configured to execute a program, an instruction, or a code in the memory 940 to control the input interface 910 to receive a signal, control the output interface 920 to transmit a signal, and complete the operations in the foregoing method embodiments.
  • the processor 930 may be a central processing unit (“CPU"), and the processor 930 may also be other general-purpose processors, digital signal processors ( DSP), application specific integrated circuit (ASIC), off-the-shelf programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the memory 940 can include read only memory and random access memory and provides instructions and data to the processor 930. A portion of the memory 940 can also include a non-volatile random access memory. For example, the memory 940 can also store information of the device type.
  • each content of the above method may be completed by an integrated logic circuit of hardware in the processor 930 or an instruction in the form of software.
  • the content of the method disclosed in the embodiments of the present application may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory 940, and the processor 930 reads the information in the memory 940 and completes the contents of the above method in combination with its hardware. To avoid repetition, it will not be described in detail here.
  • the switching module 710 included in the device 700 of FIG. 7 can be implemented by the processor 930 of FIG. 9.
  • the communication module 720 included in the device 700 of FIG. 7 can use the input interface 910 of FIG.
  • the output interface 920 is implemented.
  • the embodiment of the present application also proposes a computer program comprising instructions which, when executed by a computer, enable the computer to execute the corresponding flow of the method of the embodiment shown in Figures 2 to 5.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product. Based on such understanding, the technical solution of the present application, which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product stored in a storage medium. A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

Abstract

本申请实施例公开了一种用于随机接入的方法和设备,该方法包括:终端设备确定用于随机接入的目标上行带宽部分 BWP 和/或目标下行 BWP;所述终端设备在所述目标上行和/或下行 BWP 上,发起竞争随机接入。

Description

用于随机接入的方法和设备 技术领域
本申请实施例涉及通信领域,并且更具体地,涉及用于随机接入的方法和设备。
背景技术
在5G新无线(New Radio,NR)系统讨论中,确定NR系统支持的系统带宽远大于长期演进(Long Term Evolution,LTE)系统的系统带宽。但是对于某些终端设备,由于其能力有限,并不能支持全部的系统带宽,因此,在NR系统中引入了带宽部分(Bandwidth Part,BWP)的概念,每个BWP的带宽小于或等于最大的系统带宽。
网络设备可以给终端设备配置一个或多个上行BWP,同时还可以给终端设备配置一个或多个下行BWP,但是,一个时刻最多只能有一个激活的下行BWP和一个激活的上行BWP。
终端设备在当前激活的上行BWP上发起随机接入后,但是网络设备不一定在当前激活的下行BWP上发送随机接入响应(Random Access Response,RAR),因此,如何进行随机接入是一项值得研究的问题。
发明内容
提供了一种用于随机接入的方法和设备,有利于提升随机接入成功的概率。
第一方面,提供了一种用于随机接入的方法,终端设备确定用于随机接入的目标上行带宽部分BWP和/或目标下行BWP;
所述终端设备在所述目标上行和/或下行BWP上,发起竞争随机接入。
因此,在终端设备想要随机接入时,可以确定用于随机接入的目标上行带宽部分BWP和/或目标下行BWP,从而能够使得该终端设备用于随机接入的上行BWP和下行BWP为终端设备和网络设备能够达成共识的一对BWP,有利于提升终端设备成功接收RAR的功率,进而能够提升随机接入成功的概率。
可选地,所述目标下行BWP可以为终端设备当前激活的上行BWP映射的下行BWP,或初始下行BWP,或者也可以为当前激活的下行BWP,本申请实施例对此不作限定。
例如,若当前激活的上行BWP和下行BWP为具有映射关系的BWP,此情况下,终端设备可以确定不进行下行BWP切换,或者若该当前激活的下行BWP为初始下行BWP,此情况下,终端设备也可以不进行BWP切换。或若当前激活的上行BWP为初始上行BWP,当前激活的下行BWP不为初始下行BWP,则该终端设备可以将当前激活的下行BWP切换至初始下行BWP。
可选地,所述目标上行BWP可以为初始上行BWP,或者当前激活的上行BWP,本申请实施例对此不作限定。
例如,若当前激活的上行BWP和下行BWP为具有映射关系的BWP,此情况下,终端设备可以确定不进行上行BWP的切换,或者若该当前激活的上行BWP为初始上行BWP,此情况下,终端设备也可以不进行BWP切换。或若当前激活的下行BWP为初始下行BWP,当前激活的上行BWP不为初始上行BWP,则该终端设备可以将当前激活的上行BWP切换至初始上行BWP。
在一种可能的实现方式中,所述终端设备确定用于随机接入的目标上行带宽部分BWP和/或目标下行BWP,包括:
所述终端设备根据当前激活的第一上行BWP,确定所述目标下行BWP。
例如,可以确定当前激活的上行BWP所映射的下行BWP为所述目标下行BWP;或者该终端设备也可以重新确定一组具有映射关系的上下行BWP作为目标上行BWP和 目标下行BWP,即将当前激活的上下行BWP切换到一组具有映射关系的上下行BWP上,然后再发起随机接入。
在一种可能的实现方式中,所述终端设备根据当前激活的第一上行BWP,确定所述目标下行BWP,包括:
所述终端设备根据所述第一上行BWP以及第一映射关系,确定所述目标下行BWP,其中,所述第一映射关系用于确定所述第一上行BWP映射的下行BWP。
在一种可能的实现方式中,所述终端设备根据所述第一上行BWP以及第一映射关系,确定所述目标下行BWP,包括:
若根据所述第一映射关系确定所述第一上行BWP不映射到任一下行BWP,所述终端设备确定初始下行BWP为所述目标下行BWP。
在一种可能的实现方式中,所述终端设备根据所述第一上行BWP以及第一映射关系,确定所述目标下行BWP,包括:
若根据所述第一映射关系确定所述第一上行BWP映射到第一下行BWP,并且所述第一下行BWP不为所述终端设备当前激活的下行BWP,所述终端设备确定所述第一下行BWP为所述目标下行BWP。
在一种可能的实现方式中,所述终端设备根据所述第一上行BWP以及第一映射关系,确定所述目标下行BWP,包括:
若根据所述第一映射关系确定所述第一上行BWP映射到第一下行BWP,并且所述第一下行BWP不为所述终端设备当前激活的下行BWP,所述终端设备确定初始下行BWP为所述目标下行BWP。
在一种可能的实现方式中,所述终端设备确定用于随机接入的目标上行带宽部分BWP和/或目标下行BWP,包括:
所述终端设备确定当前激活的下行BWP为所述目标下行BWP。
在一种可能的实现方式中,所述终端设备确定用于随机接入的目标上行带宽部分BWP和/或目标下行BWP,包括:
所述终端设备确定当前激活的上行BWP或初始上行BWP为所述目标上行BWP。
在一种可能的实现方式中,所述方法还包括:
所述终端设备接收网络设备发送的第一切换指令,所述第一切换指令用于指示所述终端设备将当前激活的第一上行BWP切换为第二上行BWP;
所述终端设备根据第一映射关系,确定所述第二上行BWP映射的下行BWP;
所述终端设备将当前激活的所述第一上行BWP切换至所述第二上行BWP,并且将当前激活的下行BWP切换至所述第二上行BWP映射的下行BWP。
在一种可能的实现方式中,所述方法还包括:
所述终端设备接收网络设备发送的第二切换指令,所述第二切换指令用于指示将当前激活的第一下行BWP切换为第二下行BWP;
所述终端设备根据第一映射关系,确定所述第二下行BWP映射的上行BWP;
所述终端设备将当前激活的所述第一下行BWP切换至所述第二下行BWP,并且将当前激活的上行BWP切换至与所述第二下行BWP映射的上行BWP。
因此,终端设备进行BWP切换时,即可根据该第一映射关系同时进行上下行BWP的切换,以保持同时激活的上行BWP和下行BWP为具有映射关系的BWP,提升RAR接收成功的概率。
在一种可能的实现方式中,所述第一映射关系为上行BWP和下行BWP的映射关系。
在一种可能的实现方式中,所述第一映射关系为上行BWP的BWP索引和下行BWP的BWP索引的映射关系。
在一种可能的实现方式中,若上行BWP的数量和下行BWP的数量相等,上行BWP的BWP索引K映射到下行BWP的BWP索引k,其中,K,k都为整数,且K=k。
在一种可能的实现方式中,若上行BWP的数量大于下行BWP的数量,上行BWP的BWP索引K映射到下行BWP的BWP索引k,其中,K,k都为整数,且k为K对M取模的结果,M为网络设备配置的下行BWP的数量。
在一种可能的实现方式中,所述第一映射关系为上行BWP上配置的随机接入资源和下行BWP的映射关系。
在一种可能的实现方式中,所述第一映射关系为随机接入资源和下行BWP的BWP索引的映射关系。
在一种可能的实现方式中,所述终端设备在所述目标上行和/或下行BWP上,发起竞争随机接入,包括:
所述终端设备在所述目标上行BWP上,通过所述目标上行BWP上的配置的随机接入资源,发送随机接入前导码;
所述终端设备在所述目标下行BWP上,接收网络设备发送的随机接入响应RAR。
在一种可能的实现方式中,所述方法还包括:
若所述终端设备当前激活的下行BWP与所述目标下行BWP不同,所述终端设备将当前激活的下行BWP切换至所述目标下行BWP。
第二方面,提供了一种用于随机接入的方法,所述方法还包括:
所述终端设备接收网络设备发送的切换指令,所述切换指令用于指示将当前激活的第一带宽部分BWP切换为第二BWP,其中,所述第一BWP和所述第二BWP为上行BWP或下行BWP;
所述终端设备根据第一映射关系,同时切换所述终端设备当前激活的上行BWP和下行BWP,其中,所述第一映射关系用于确定所述第二BWP映射的BWP。
因此,终端设备进行BWP切换时,即可根据该第一映射关系同时进行上下行BWP的切换,以保持同时激活的上行BWP和下行BWP为具有映射关系的BWP,提升RAR接收成功的概率。
在一种可能的实现方式中,所述终端设备根据第一映射关系,同时切换所述终端设备当前激活的上行BWP和下行BWP,包括:
若所述第一BWP和所述第二BWP为上行BWP,所述终端设备将当前激活的上行BWP从所述第一BWP切换至所述第二BWP,并且将当前激活的下行BWP切换至所述第二BWP映射的下行BWP。
在一种可能的实现方式中,所述终端设备根据第一映射关系,同时切换所述终端设备当前激活的上行BWP和下行BWP,包括:
若所述第一BWP和所述第二BWP为下行BWP,所述终端设备将当前激活的下行BWP从所述第一BWP切换至所述第二BWP,并且将当前激活的上行BWP切换至所述第二BWP映射的上行BWP。
在一种可能的实现方式中,所述第一映射关系为上行BWP和下行BWP的映射关系。
在一种可能的实现方式中,所述第一映射关系为上行BWP的BWP索引和下行BWP的BWP索引的映射关系。
在一种可能的实现方式中,若上行BWP的数量和下行BWP的数量相等,上行BWP的BWP索引K映射到下行BWP的BWP索引k,其中,K,k都为整数,且K=k。
在一种可能的实现方式中,若上行BWP的数量大于下行BWP的数量,上行BWP的BWP索引K映射到下行BWP的BWP索引k,其中,K,k都为整数,且k为K对M取模的结果,M为网络设备配置的下行BWP的数量。
在一种可能的实现方式中,所述第一映射关系为上行BWP上配置的随机接入资源和下行BWP的映射关系。
在一种可能的实现方式中,所述第一映射关系为随机接入资源和下行BWP的BWP索引的映射关系。
第三方面,提供了一种用于随机接入的设备,用于执行上述第一方面或第一方面的任意可能的实现方式中的方法。具体地,该设备包括用于执行上述第一方面或第一方面的任一可能的实现方式中的方法的单元。
第四方面,提供了一种用于随机接入的设备,该设备包括:存储器、处理器、输入接口和输出接口。其中,存储器、处理器、输入接口和输出接口通过总线系统相连。该存储器用于存储指令,该处理器用于执行该存储器存储的指令,用于执行上述第一方面或第一方面的任一可能的实现方式中的方法。
第五方面,提供了一种用于随机接入的设备,用于执行上述第二方面或第二方面的任意可能的实现方式中的方法。具体地,该设备包括用于执行上述第二方面或第二方面的任一可能的实现方式中的方法的单元。
第六方面,提供了一种用于随机接入的设备,该设备包括:存储器、处理器、输入接口和输出接口。其中,存储器、处理器、输入接口和输出接口通过总线系统相连。该存储器用于存储指令,该处理器用于执行该存储器存储的指令,用于执行上述第二方面或第二方面的任一可能的实现方式中的方法。
第七方面,提供了一种计算机存储介质,用于储存为执行上述第一方面或第一方面的任意可能的实现方式中的方法所用的计算机软件指令,其包含用于执行上述方面所设计的程序。
第八方面,提供了一种包括指令的计算机程序产品,当其在计算机上运行时,使得计算机执行上述第一方面或第一方面的任一可选的实现方式中的方法。
第九方面,提供了一种计算机存储介质,用于储存为执行上述第二方面或第二方面的任意可能的实现方式中的方法所用的计算机软件指令,其包含用于执行上述方面所设计的程序。
第十方面,提供了一种包括指令的计算机程序产品,当其在计算机上运行时,使得计算机执行上述第二方面或第二方面的任一可选的实现方式中的方法。
附图说明
图1示出了本申请实施例一个应用场景的示意图。
图2示出了本申请实施例的用于随机接入的方法的示意性流程图。
图3示出了本申请实施例的第一映射关系的一例示意图。
图4示出了本申请实施例的第一映射关系的另一例示意图。
图5示出了本申请另一实施例的用于随机接入的方法的示意性流程图。
图6示出了本申请实施例的用于随机接入的设备的示意性框图。
图7示出了本申请另一实施例的用于随机接入的设备的示意性框图。
图8示出了本申请实施例的用于随机接入的设备的示意性框图。
图9示出了本申请另一实施例的用于随机接入的设备的示意性框图。
具体实施方式
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行描述。
本申请实施例的技术方案可以应用于各种通信系统,例如:长期演进(Long Term Evolution,简称为“LTE”)系统、LTE频分双工(Frequency Division Duplex,简称为“FDD”)系统、LTE时分双工(Time Division Duplex,简称为“TDD”)、通用移动通信系统(Universal Mobile Telecommunication System,简称为“UMTS”)、全球互联微波接入(Worldwide Interoperability for Microwave Access,简称为“WiMAX”)通信系统或未来的5G系统等。
图1示出了本申请实施例应用的无线通信系统100。该无线通信系统100可以包括网络设备110。网络设备100可以是与终端设备通信的设备。网络设备100可以为特定的地 理区域提供通信覆盖,并且可以与位于该覆盖区域内的终端设备(例如UE)进行通信。可选地,该网络设备100可以LTE系统中的演进型基站(Evolutional Node B,eNB或eNodeB),或者是云无线接入网络(Cloud Radio Access Network,CRAN)中的无线控制器,或者该网络设备可以为中继站、接入点、车载设备、可穿戴设备、未来5G网络中的网络侧设备或者未来演进的公共陆地移动网络(Public Land Mobile Network,PLMN)中的网络设备等。
该无线通信系统100还包括位于网络设备110覆盖范围内的至少一个终端设备120。终端设备120可以是移动的或固定的。可选地,终端设备120可以指接入终端、用户设备(User Equipment,UE)、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,SIP)电话、无线本地环路(Wireless Local Loop,WLL)站、个人数字处理(Personal Digital Assistant,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、未来5G网络中的终端设备或者未来演进的PLMN中的终端设备等。
可选地,5G系统或网络还可以称为新无线(New Radio,NR)系统或网络。
可选地,该无线通信系统100还可以包括网络控制器、移动管理实体等其他网络实体,本申请实施例对此不作限定。
图1示例性地示出了一个网络设备和两个终端设备,可选地,该无线通信系统100可以包括多个网络设备并且每个网络设备的覆盖范围内可以包括其它数量的终端设备,本申请实施例对此不做限定。
随机接入技术是移动通信系统中终端设备与网络设备进行通信的首要内容。无线蜂窝网络中的终端设备可以通过随机接入过程向网络侧发起连接请求。
为了便于理解,简单介绍随机接入过程。随机接入过程主要包括以下几个步骤:
S1、首先是随机接入前导码((random access preamble)的发送。主要用于网络设备可以对终端设备的传输时延进行正确估计,并且解决多个终端设备同时发起接入请求的冲突问题,该随机接入前导码也可以称为Msg1。
S2、网络设备向终端设备发送随机接入响应(Random Access Response,RAR),该RAR中包括上行同步所需的传输时延,以及当前系统的接入过载状况。除此之外,网络设备还可以将为终端设备分配的上行资源位置信息反馈给终端设备。
S3、终端设备在指定的上行资源上发送与随机接入事件对应的消息以及终端设备本身的终端设备标识。
S4、网络设备将冲突解决信息反馈给终端设备。
图2是本申请实施例提供的用于随机接入的方法200的示意性流程图,该方法200可以由通信系统中的终端设备来执行,如图2所示,该方法200包括:
S210,终端设备确定用于随机接入的目标上行带宽部分BWP和/或目标下行BWP;
S220,所述终端设备在所述目标上行和/或下行BWP上,发起竞争随机接入。
在本申请实施例中,当终端设备想要发起随机接入时,可以确定用于随机接入的目标上行带宽部分BWP和/或目标下行BWP,可选地,该终端设备用于随机接入的上行BWP和下行BWP可以是终端设备和网络设备能够达成共识的一对BWP,因此,在终端设备通过该某个上行BWP上配置的随机接入资源(即物理随机接入信道(Physical Random Access Channel,PRACH)资源)发送随机接入前导码时,网络设备可以在对应的下行BWP上回复RAR,相应地,终端设备可以在该对应的下行BWP上接收RAR,因此,能够提升终端设备成功接收RAR的功率,进而能够提升随机接入成功的概率。
可选地,在一些实施例中,上行BWP和下行BWP可以是具有映射关系的,因此,终端设备可以根据当前激活的上行BWP确定用于随机接入的该目标下行BWP,例如, 可以确定当前激活的上行BWP所映射的下行BWP为所述目标下行BWP;或者该终端设备也可以重新确定一组具有映射关系的上下行BWP作为目标上行BWP和目标下行BWP,即将当前激活的上下行BWP切换到一组具有映射关系的上下行BWP上,然后再发起随机接入。
例如,若所述终端设备当前激活的上行BWP为上行BWP1,当前激活的下行BWP为下行BWP0,该上行BWP1映射的下行BWP为下行BWP1,即当前激活的上行BWP和下行BWP不具有映射关系,那么该终端设备可以将当前激活的下行BWP切换至下行BWP1上,然后再发起随机接入,或者该终端设备也可以将当前激活的上行BWP切换至上行BWP2,将当前激活的下行BWP都切换至下行BWP2,然后再发起随机接入,其中,该上行BWP2和下行BWP2为具有映射关系的BWP。
可选地,在一些实施例中,所述目标下行BWP可以为终端设备当前激活的上行BWP映射的下行BWP,或初始下行BWP,或者也可以为当前激活的下行BWP,本申请实施例对此不作限定。
例如,若当前激活的上行BWP和下行BWP为具有映射关系的BWP,此情况下,终端设备可以确定不进行下行BWP切换;或者,若该当前激活的下行BWP为初始(initial)下行BWP,此情况下,终端设备也可以不进行BWP切换;或者,若当前激活的上行BWP为初始上行BWP,当前激活的下行BWP不为初始下行BWP,则该终端设备可以将当前激活的下行BWP切换至初始下行BWP等。
可选地,在一些实施例中,所述目标上行BWP可以为初始上行BWP,或者当前激活的上行BWP,本申请实施例对此不作限定。
例如,若当前激活的上行BWP和下行BWP为具有映射关系的BWP,此情况下,终端设备可以确定不进行上行BWP的切换,或者若该当前激活的上行BWP为初始上行BWP,此情况下,终端设备也可以不进行BWP切换。或若当前激活的下行BWP为初始下行BWP,当前激活的上行BWP不为初始上行BWP,则该终端设备可以将当前激活的上行BWP切换至初始上行BWP等。
以下,结合具体实施例,说明该目标下行BWP的确定方式。
可选地,在一些实施例中,所述S210可以具体包括:
所述终端设备根据当前激活的第一上行BWP,确定所述目标下行BWP。
例如,若当前激活的上行BWP为该第一上行BWP,该第一上行BWP可以映射到第一下行BWP,则该终端设备可以确定该第一下行BWP为该目标下行BWP,进一步的,可以将当前激活的下行BWP切换为该第一下行BWP,此时,同时激活的上行BWP和下行BWP是具有映射关系的,则终端设备在该第一上行BWP上发送Msg1,就可以在该第一上行BWP映射的第一下行BWP上接收RAR。对于网络设备而言,若在该第一上行BWP上接收到Msg1,就可以在该第一上行BWP对应的第一下行BWP上发送RAR,即终端设备和网络设备对于发送RAR所在的下行BWP可以达成共识,有利于提升终端设备成功接收RAR的概率。
再例如,若当前激活的第一上行BWP为初始上行BWP,则该终端设备可以确定初始下行BWP为该目标下行BWP,或者也可以确定不进行下行BWP的切换,即保持在当前激活的下行BWP上进行随机接入。
应理解,所述第一上行BWP对应的该第一下行BWP可以为初始下行BWP,或者也可以为非初始下行BWP,本申请实施例对此不作限定。
可选地,在一些实施例中,所述终端设备根据当前激活的第一上行BWP,确定所述目标下行BWP,包括:
所述终端设备根据所述第一上行BWP以及第一映射关系,确定所述目标下行BWP,其中,所述第一映射关系用于确定所述第一上行BWP映射的下行BWP。
在本申请实施例中,上行BWP和下行BWP可以具有一定的映射关系,可选地,上 行BWP和下行BWP的映射关系可以是一对一,或一对多,或多对一,或多对多等,本申请实施例对此不作限定。
例如,可以是一个下行BWP对应一个上行BWP,或一个下行BWP对应多个上行BWP,或者也可以有部分上行BWP不对应任一下行BWP,或部分下行BWP不对应任一上行BWP等,本申请实施例对此不作限定。
可选地,在本申请实施例中,所述第一映射关系可以是通信系统规定的,或网络设备配置的,或预设在所述终端设备上的等,本申请实施例对此不作限定。
在本申请实施例中,该第一映射关系可以用于确定上行BWP和下行BWP的映射关系,即根据该第一映射关系可以确定某个上行BWP映射的下行BWP,或确定某个下行BWP映射的上行BWP。
可选地,在一具体实施例中,所述第一映射关系为上行BWP和下行BWP的映射关系,即第一映射关系可以直接指示上行BWP和下行BWP的映射关系。
例如,所述第一映射关系可以为上行BWP的标识和下行BWP的标识的映射关系,可选地,该BWP的标识可以为BWP索引,或者其他能够唯一标识该BWP的标识信息,本申请实施例对此不作限定。
可选地,该第一映射关系可以为上行BWP的BWP索引(index)和下行BWP的BWP索引的映射关系。
可选地,若上行BWP的数量和下行BWP的数量相等,则上行BWP的BWP K可以映射到下行BWP的BWP k,其中,K,k都为整数,且K=k。
例如,上行BWP 1映射到下行BWP 1,上行BWP 2映射到下行BWP 2等。
可选地,若上行BWP的数量和下行BWP的数量相等,该第一映射关系可以为上行BWP的BWP K映射到下行BWP的BWP k,其中,K,k都为整数,且K=M-k,其中,M为上行BWP或下行BWP的数量。
例如,上行BWP 1映射到下行BWP M,上行BWP 2映射到下行BWP M-1等。
可选地,若上行BWP的数量大于下行BWP的数量,上行BWP的BWP索引K映射到下行BWP的BWP索引k,其中,K,k都为整数,且k为K对M取模的结果,M为网络设备配置的下行BWP的数量。
应理解,网络设备配置的下行BWP的数量M可以包括初始下行BWP,也可以不包括初始下行BWP,本申请实施例对此不作限定。若包括初始下行BWP,则取模后,非初始上行BWP有可能映射到初始下行BWP;若不包括初始下行BWP,则取模后,非初始上行BWP不会映射到初始下行BWP。
例如,如图3所示,若上行BWP包括BWP0~BWP3和初始上行BWP,下行BWP包括BWP0、BWP1和初始下行BWP,下行BWP的数量为2(不包括初始下行BWP),则根据上述映射规则,上行BWP0可以映射到下行BWP0,上行BWP1映射到下行BWP1,上行BWP2映射到下行BWP0,上行BWP3映射到下行BWP1。可选地,初始上行BWP可以映射到初始下行BWP。
再例如,若上行BWP包括BWP1~BWP3和初始上行BWP(将初始下行BWP的索引记为0),下行BWP包括BWP1、BWP2和初始下行BWP,下行BWP的数量为3(包括初始下行BWP,将初始下行BWP的索引记为0),则根据上述映射规则,上行BWP1可以映射到下行BWP1,上行BWP2映射到下行BWP2,上行BWP3映射到初始下行BWP,初始上行BWP也映射到初始下行BWP。
可选地,在一些实施例中,所述第一映射关系为上行BWP上配置的随机接入资源和下行BWP的映射关系。
因此,终端设备根据当前激活的上行BWP上配置的PRACH资源可以确定映射到哪个下行BWP,从而可以确定该映射的下行BWP为目标下行BWP,对应地,网络设备根据终端设备发送Msg1所使用的PRACH资源结合该第一映射关系可以确定在该 PRACH资源所映射的下行BWP上发送RAR,从而,终端设备和网络设备对于发送RAR所在的下行BWP可以达成共识,有利于提升终端设备成功接收RAR的概率。
可选地,所述第一映射关系为随机接入资源和下行BWP的BWP索引的映射关系。
即随机接入资源可以用于指示对应的上行BWP,从而该第一映射关系可以用于间接指示上行BWP和下行BWP的映射关系。
应理解,以上,上行BWP和下行BWP的映射关系仅为示例,当然上行BWP和下行BWP也可以为其他映射关系,只要根据该第一映射关系,可以确定上行BWP映射的下行BWP,或确定下行BWP映射的上行BWP即可,本申请实施例对此不作限定。
可选地,若根据该第一映射关系,确定当前激活的上行BWP与当前激活的下行BWP不对应,即当前激活的上下行BWP不为具有映射关系的上行BWP(记为情况1),或当前激活的上行BWP不对应任一下行BWP(记为情况2),该情况2也可以认为情况1的一种,为便于描述,记为两种情况,在该两种情况下,对于终端设备和网络设备而言,在哪个下行BWP上进行RAR传输需要达成共识。
情况1:
可选地,在一些实施例中,所述终端设备根据所述第一上行BWP以及第一映射关系,确定所述目标下行BWP,包括:
若根据所述第一映射关系确定所述第一上行BWP映射到第一下行BWP,并且所述第一下行BWP不为所述终端设备当前激活的下行BWP,所述终端设备确定所述第一下行BWP为所述目标下行BWP。
也就是说,当终端设备当前激活的第一下行BWP不是当前激活的第一上行BWP所映射的下行BWP时,该终端设备可以确定该第一上行BWP映射的下行BWP为目标下行BWP,进一步的,可以将当前激活的下行BWP切换至该目标下行BWP,在该第一下行BWP和该目标下行BWP发起随机接入。
对应地,若该网络设备在第一上行BWP上接收到Msg1时,可以在该第一上行BWP映射的第一下行BWP回复RAR,以便于终端设备在该第一下行BWP上接收RAR。
可选地,在另一些实施例中,所述终端设备根据所述第一上行BWP以及第一映射关系,确定所述目标下行BWP,包括:
若根据所述第一映射关系确定所述第一上行BWP映射到第一下行BWP,并且所述第一下行BWP不为所述终端设备当前激活的下行BWP,所述终端设备确定初始下行BWP为所述目标下行BWP。
也就是说,当终端设备当前激活的第一下行BWP不是当前激活的第一上行BWP所映射的下行BWP时,该终端设备可以确定该初始下行BWP为目标下行BWP,进一步的,可以将当前激活的下行BWP切换至该初始下行BWP,在该第一上行BWP和该初始下行BWP进行随机接入。
对应地,若该网络设备在第一上行BWP上接收到Msg1时,可以在初始下行BWP回复RAR,以便于终端设备在该初始下行BWP上接收RAR。
可选地,在一些实施例中,该终端设备也可以将当前激活的第一上行BWP切换至初始上行BWP,在该初始上行BWP和该目标下行BWP上发起随机接入,本申请实施例对此不作限定。
例如,若该第一映射关系如图3所示,当前激活的上行BWP为上行BWP2,当前激活的下行BWP为下行BWP1,即上行BWP和下行BWP不具有映射关系。
此情况下,终端设备可以将当前激活的下行BWP1切换至该上行BWP2映射的下行BWP0,这样,切换后的下行BWP0和当前激活的上行BWP2是具有映射关系的,然后终端设备可以在该上行BWP2和下行BWP0上进行随机接入,这样,当网络设备在上行BWP2上接收到Msg1时,可以在该上行BWP2映射的下行BWP0上发送RAR,从而终端设备可以在该下行BWP0上接收RAR。
或者,终端设备可以将当前激活的下行BWP1切换至初始下行BWP,然后终端设备可以在该上行BWP2和初始下行BWP上进行随机接入,这样,当网络设备在上行BWP2上接收到Msg1时,可以在该初始下行BWP上发送RAR,从而终端设备可以在该初始下行BWP上接收RAR,此情况下,可以认为上行BWP2和初始下行BWP是具有映射关系的。
情况2:
可选地,在一些实施例中,所述终端设备根据所述第一上行BWP以及第一映射关系,确定所述目标下行BWP,包括:
若根据所述第一映射关系确定所述第一上行BWP不映射到任一下行BWP,所述终端设备确定初始下行BWP为所述目标下行BWP。
也就是说,当前激活的第一上行BWP没有映射到任一下行BWP,此情况也可以认为当前激活的上行BWP和下行BWP是不具有映射关系的,可选地,终端设备可以确定该初始下行BWP为目标下行BWP,从而可以将当前激活的下行BWP切换至该初始下行BWP,在该第一上行BWP和该初始下行BWP上进行随机接入。
对应地,若该网络设备在第一上行BWP上接收到Msg1,并且确定该第一上行BWP不映射到任一下行BWP时,可以在初始下行BWP回复RAR,以便于终端设备在该初始下行BWP上接收RAR。
例如,若该第一映射关系如图4所示,其中,上行BWP0映射到下行BWP0,上行BWP1映射到下行BWP1,上行BWP2和上行BWP3不映射到任一下行BWP,初始上行BWP映射到初始下行BWP。
若当前激活的上行BWP为上行BWP2,当前激活的下行BWP为下行BWP1,即上行BWP和下行BWP不具有映射关系。
此情况下,终端设备可以将当前激活的下行BWP1切换至初始下行BWP,然后终端设备可以在该上行BWP2和初始下行BWP上进行随机接入,这样,当网络设备在上行BWP2上接收到Msg1时,可以在该初始下行BWP上发送RAR,从而终端设备可以在该初始下行BWP上接收RAR,此情况下,可以认为上行BWP2和初始下行BWP是具有映射关系的。
可选地,在本申请实施例中,当该终端设备确定将当前激活的下行BWP切换至初始下行BWP时,该终端设备也可以确定将当前激活的上行BWP切换至初始上行BWP,进一步地,可以在该初始上行BWP和初始下行BWP上发起随机接入。
综上,当终端设备当前激活的第一上行BWP和当前激活的第一下行BWP不对应时(例如,情况1和情况2),终端设备可以确定将当前激活的下行BWP切换至该第一上行BWP映射的下行BWP,或者也可以切换至初始下行BWP,然后在该第一上行BWP和该第一上行BWP映射的下行BWP上发起随机接入,或在该第一上行BWP和初始下行BWP上发起随机接入。或者,终端设备也可以将当前激活的第一上行BWP切换至初始上行BWP,即该终端设备可以在该初始上行BWP和该第一上行BWP映射的下行BWP上发起随机接入,或该终端设备可以在该初始上行BWP和初始下行BWP上发起随机接入。
可选地,在一些实施例中,所述方法200还可以包括:
所述终端设备接收网络设备发送的第一切换指令,所述第一切换指令用于指示所述终端设备将当前激活的第一上行BWP切换为第二上行BWP;
所述终端设备根据第一映射关系,确定所述第二上行BWP映射的下行BWP;
所述终端设备将当前激活的所述第一上行BWP切换至所述第二上行BWP,并且将当前激活的下行BWP切换至所述第二上行BWP映射的下行BWP。
可选地,在一些实施例中,所述方法200还包括:
所述终端设备接收网络设备发送的第二切换指令,所述第二切换指令用于指示将当 前激活的第一下行BWP切换为第二下行BWP;
所述终端设备根据第一映射关系,确定所述第二下行BWP映射的上行BWP;
所述终端设备将当前激活的所述第一下行BWP切换至所述第二下行BWP,并且将当前激活的上行BWP切换至与所述第二下行BWP映射的上行BWP。
因此,终端设备进行BWP切换时,即可根据该第一映射关系同时进行上下行BWP的切换,以保持同时激活的上行BWP和下行BWP为具有映射关系的BWP,提升RAR接收成功的概率。
例如,若当前激活的上行BWP为上行BWP1,当前激活的下行BWP为下行BWP1,网络设备指示终端设备将上行BWP切换至上行BWP2,该上行BWP2映射到下行BWP0,则该终端设备可以将上行BWP从上行BWP1切换至上行BWP2,同时将下行BWP从下行BWP1切换至下行BWP0。
图5是根据本申请另一实施例的用于随机接入的方法500的示意性流程图,该方法500可以由图1所示的通信系统中的终端设备执行,如图5所示,该方法500包括如下内容:
S510,所述终端设备接收网络设备发送的切换指令,所述切换指令用于指示将当前激活的第一带宽部分BWP切换为第二BWP,其中,所述第一BWP和所述第二BWP为上行BWP或下行BWP;
S520,所述终端设备根据第一映射关系,同时切换所述终端设备当前激活的上行BWP和下行BWP,其中,所述第一映射关系用于确定所述第二BWP映射的BWP。
例如,若当前激活的上行BWP为上行BWP1,当前激活的下行BWP为下行BWP1,网络设备700指示终端设备将上行BWP切换至上行BWP2,该上行BWP2映射到下行BWP0,则该终端设备可以将上行BWP从上行BWP1切换至上行BWP2,同时将下行BWP从下行BWP1切换至下行BWP0。
即终端设备可以根据第一映射关系,同时进行上下行BWP的切换,从而能够保证切换后的上下行BWP为具有映射关系的上下行BWP,从而终端设备和网络设备对于传输RAR的下行BWP达成共识,有利于提升终端设备成功接收RAR的概率。
可选地,在一些实施例中,S520可以包括:
若所述第一BWP和所述第二BWP为上行BWP,所述终端设备将当前激活的上行BWP从所述第一BWP切换至所述第二BWP,并且将当前激活的下行BWP切换至所述第二BWP映射的下行BWP。
可选地,在一些实施例中,S520可以包括:
若所述第一BWP和所述第二BWP为下行BWP,所述终端设备将当前激活的下行BWP从所述第一BWP切换至所述第二BWP,并且将当前激活的上行BWP切换至所述第二BWP映射的上行BWP。
可选地,在一些实施例中,所述第一映射关系为上行BWP和下行BWP的映射关系。
可选地,在一些实施例中,所述第一映射关系为上行BWP的BWP索引和下行BWP的BWP索引的映射关系。
可选地,在一些实施例中,若上行BWP的数量和下行BWP的数量相等,上行BWP的BWP索引K映射到下行BWP的BWP索引k,其中,K,k都为整数,且K=k。
可选地,在一些实施例中,若上行BWP的数量大于下行BWP的数量,上行BWP的BWP索引K映射到下行BWP的BWP索引k,其中,K,k都为整数,且k为K对M取模的结果,M为网络设备配置的下行BWP的数量。
可选地,在一些实施例中,所述第一映射关系为上行BWP上配置的随机接入资源和下行BWP的映射关系。
可选地,在一些实施例中,所述第一映射关系为随机接入资源和下行BWP的BWP索引的映射关系。
应理解,该第一映射关系可以为前文所述的第一映射关系,具体可参加前述实施例的相关描述,这里不再赘述。
上文结合图2至图5,详细描述了本申请的方法实施例,下文结合图6至图9,详细描述本申请的装置实施例,应理解,装置实施例与方法实施例相互对应,类似的描述可以参照方法实施例。
图6示出了根据本申请实施例的用于随机接入的设备600的示意性框图。如图6所示,该设备600包括:
确定模块610,用于确定用于随机接入的目标上行带宽部分BWP和/或目标下行BWP;
通信模块620,用于在所述目标上行和/或下行BWP上,发起竞争随机接入。
可选地,在一些实施例中,所述确定模块610还用于:
根据当前激活的第一上行BWP,确定所述目标下行BWP。
可选地,在一些实施例中,所述确定模块610还用于:
根据所述第一上行BWP以及第一映射关系,确定所述目标下行BWP,其中,所述第一映射关系用于确定所述第一上行BWP映射的下行BWP。
可选地,在一些实施例中,所述确定模块610还用于:
若根据所述第一映射关系确定所述第一上行BWP不映射到任一下行BWP,确定初始下行BWP为所述目标下行BWP。
可选地,在一些实施例中,所述确定模块610还用于:
若根据所述第一映射关系确定所述第一上行BWP映射到第一下行BWP,并且所述第一下行BWP不为所述设备当前激活的下行BWP,确定所述第一下行BWP为所述目标下行BWP。
可选地,在一些实施例中,所述确定模块610还用于:
若根据所述第一映射关系确定所述第一上行BWP映射到第一下行BWP,并且所述第一下行BWP不为所述设备当前激活的下行BWP,确定初始下行BWP为所述目标下行BWP。
可选地,在一些实施例中,所述确定模块610还用于:
确定当前激活的下行BWP为所述目标下行BWP。
可选地,在一些实施例中,所述确定模块610还用于:
确定当前激活的上行BWP或初始上行BWP为所述目标上行BWP。
可选地,在一些实施例中,所述通信模块620还用于:
接收网络设备发送的第一切换指令,所述第一切换指令用于指示所述设备将当前激活的第一上行BWP切换为第二上行BWP;
所述确定模块610还用于:根据第一映射关系,确定所述第二上行BWP映射的下行BWP;
所述设备600还包括:
切换模块,用于将当前激活的所述第一上行BWP切换至所述第二上行BWP,并且将当前激活的下行BWP切换至所述第二上行BWP映射的下行BWP。
可选地,在一些实施例中,所述通信模块620还用于:
接收网络设备发送的第二切换指令,所述第二切换指令用于指示将当前激活的第一下行BWP切换为第二下行BWP;
所述确定模块610还用于:根据第一映射关系,确定所述第二下行BWP映射的上行BWP;
所述设备600还包括:
切换模块,用于将当前激活的所述第一下行BWP切换至所述第二下行BWP,并且将当前激活的上行BWP切换至与所述第二下行BWP映射的上行BWP。
可选地,在一些实施例中,所述第一映射关系为上行BWP和下行BWP的映射关系。
可选地,在一些实施例中,所述第一映射关系为上行BWP的BWP索引和下行BWP的BWP索引的映射关系。
可选地,在一些实施例中,若上行BWP的数量和下行BWP的数量相等,上行BWP的BWP索引K映射到下行BWP的BWP索引k,其中,K,k都为整数,且K=k。
可选地,在一些实施例中,若上行BWP的数量大于下行BWP的数量,上行BWP的BWP索引K映射到下行BWP的BWP索引k,其中,K,k都为整数,且k为K对M取模的结果,M为网络设备配置的下行BWP的数量。
可选地,在一些实施例中,所述第一映射关系为上行BWP上配置的随机接入资源和下行BWP的映射关系。
可选地,在一些实施例中,所述第一映射关系为随机接入资源和下行BWP的BWP索引的映射关系。
可选地,在一些实施例中,所述通信模块620具体用于:
在所述目标上行BWP上,通过所述目标上行BWP上的配置的随机接入资源,发送随机接入前导码;
在所述目标下行BWP上,接收网络设备发送的随机接入响应RAR。
可选地,在一些实施例中,所述设备600还包括:
切换模块,用于在所述设备当前激活的下行BWP与所述目标下行BWP不同的情况下,将当前激活的下行BWP切换至所述目标下行BWP。
应理解,根据本申请实施例的用于随机接入的设备600可对应于本申请方法实施例中的终端设备,并且设备600中的各个单元的上述和其它操作和/或功能分别为了实现图2所示方法200中终端设备的相应流程,为了简洁,在此不再赘述。
图7是根据本申请实施例的用于随机接入的设备的示意性框图。图7的设备700包括:
通信模块710,用于接收网络设备发送的切换指令,所述切换指令用于指示将当前激活的第一带宽部分BWP切换为第二BWP,其中,所述第一BWP和所述第二BWP为上行BWP或下行BWP;
切换模块720,用于根据第一映射关系,同时切换所述设备当前激活的上行BWP和下行BWP,其中,所述第一映射关系用于确定所述第二BWP映射的BWP。
可选地,在一些实施例中,所述切换模块具体用于:
若所述第一BWP和所述第二BWP为上行BWP,将当前激活的上行BWP从所述第一BWP切换至所述第二BWP,并且将当前激活的下行BWP切换至所述第二BWP映射的下行BWP。
可选地,在一些实施例中,所述切换模块具体用于:
若所述第一BWP和所述第二BWP为下行BWP,将当前激活的下行BWP从所述第一BWP切换至所述第二BWP,并且将当前激活的上行BWP切换至所述第二BWP映射的上行BWP。
可选地,在一些实施例中,所述第一映射关系为上行BWP和下行BWP的映射关系。
可选地,在一些实施例中,所述第一映射关系为上行BWP的BWP索引和下行BWP的BWP索引的映射关系。
可选地,在一些实施例中,若上行BWP的数量和下行BWP的数量相等,上行BWP的BWP索引K映射到下行BWP的BWP索引k,其中,K,k都为整数,且K=k。
可选地,在一些实施例中,若上行BWP的数量大于下行BWP的数量,上行BWP的BWP索引K映射到下行BWP的BWP索引k,其中,K,k都为整数,且k为K对M取模的结果,M为网络设备配置的下行BWP的数量。
可选地,在一些实施例中,所述第一映射关系为上行BWP上配置的随机接入资源 和下行BWP的映射关系。
可选地,在一些实施例中,所述第一映射关系为随机接入资源和下行BWP的BWP索引的映射关系。
具体地,该设备700可以对应(例如,可以配置于或本身即为)上述方法500中描述的终端设备,并且,该设备700中的各模块或单元分别用于执行上述方法500中终端设备所执行的各动作或处理过程,这里,为了避免赘述,省略其详细说明。
如图8所示,本申请实施例还提供了一种用于随机接入的设备800,所述设备800可以为图6中的设备600,其能够用于执行与图2中方法200对应的终端设备的内容。所述设备800包括:输入接口810、输出接口820、处理器830以及存储器840,所述输入接口810、输出接口820、处理器830和存储器840可以通过总线系统相连。所述存储器840用于存储包括程序、指令或代码。所述处理器830,用于执行所述存储器840中的程序、指令或代码,以控制输入接口810接收信号、控制输出接口820发送信号以及完成前述方法实施例中的操作。
应理解,在本申请实施例中,所述处理器830可以是中央处理单元(Central Processing Unit,简称为“CPU”),所述处理器830还可以是其他通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现成可编程门阵列(FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者所述处理器也可以是任何常规的处理器等。
所述存储器840可以包括只读存储器和随机存取存储器,并向处理器830提供指令和数据。存储器840的一部分还可以包括非易失性随机存取存储器。例如,存储器840还可以存储设备类型的信息。
在实现过程中,上述方法的各内容可以通过处理器830中的硬件的集成逻辑电路或者软件形式的指令完成。结合本申请实施例所公开的方法的内容可以直接体现为硬件处理器执行完成,或者用处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器,闪存、只读存储器,可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。所述存储介质位于存储器840,处理器830读取存储器840中的信息,结合其硬件完成上述方法的内容。为避免重复,这里不再详细描述。
一个具体的实施方式中,图6中设备600包括的确定模块610和切换模块可以用图8的处理器830实现,图6中设备600包括的通信模块620可以用图8的所述输入接口810和所述输出接口820实现。
如图9所示,本申请实施例还提供了一种用于随机接入的设备900,所述设备900可以为图7中的设备700,其能够用于执行与图5方法500对应的终端设备的内容。所述设备900包括:输入接口910、输出接口920、处理器930以及存储器940,所述输入接口910、输出接口920、处理器930和存储器940可以通过总线系统相连。所述存储器940用于存储包括程序、指令或代码。所述处理器930,用于执行所述存储器940中的程序、指令或代码,以控制输入接口910接收信号、控制输出接口920发送信号以及完成前述方法实施例中的操作。
应理解,在本申请实施例中,所述处理器930可以是中央处理单元(Central Processing Unit,简称为“CPU”),所述处理器930还可以是其他通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现成可编程门阵列(FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者所述处理器也可以是任何常规的处理器等。
所述存储器940可以包括只读存储器和随机存取存储器,并向处理器930提供指令和数据。存储器940的一部分还可以包括非易失性随机存取存储器。例如,存储器940还可以存储设备类型的信息。
在实现过程中,上述方法的各内容可以通过处理器930中的硬件的集成逻辑电路或 者软件形式的指令完成。结合本申请实施例所公开的方法的内容可以直接体现为硬件处理器执行完成,或者用处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器,闪存、只读存储器,可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。所述存储介质位于存储器940,处理器930读取存储器940中的信息,结合其硬件完成上述方法的内容。为避免重复,这里不再详细描述。
一个具体的实施方式中,图7中设备700包括的切换模块710可以用图9的处理器930实现,图7中设备700包括的通信模块720可以用图9的所述输入接口910和所述输出接口920实现。
本申请实施例还提出了一种计算机可读存储介质,该计算机可读存储介质存储一个或多个程序,该一个或多个程序包括指令,该指令当被包括多个应用程序的便携式电子设备执行时,能够使该便携式电子设备执行图2至图5所示实施例的方法。
本申请实施例还提出了一种计算机程序,该计算机程序包括指令,当该计算机程序被计算机执行时,使得计算机可以执行图2至图5所示实施例的方法的相应流程。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的系统、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
在本申请所提供的几个实施例中,应所述理解到,所揭露的系统、装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本申请各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分或者所述技术方案的部分可以以软件产品的形式体现出来,所述计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(ROM,Read-Only Memory)、随机存取存储器(RAM,Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本申请揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应所述以权利要求的保护范围为准。

Claims (54)

  1. 一种用于随机接入的方法,其特征在于,包括:
    终端设备确定用于随机接入的目标上行带宽部分BWP和/或目标下行BWP;
    所述终端设备在所述目标上行和/或下行BWP上,发起竞争随机接入。
  2. 根据权利要求1所述的方法,其特征在于,所述终端设备确定用于随机接入的目标上行带宽部分BWP和/或目标下行BWP,包括:
    所述终端设备根据当前激活的第一上行BWP,确定所述目标下行BWP。
  3. 根据权利要求2所述的方法,其特征在于,所述终端设备根据当前激活的第一上行BWP,确定所述目标下行BWP,包括:
    所述终端设备根据所述第一上行BWP以及第一映射关系,确定所述目标下行BWP,其中,所述第一映射关系用于确定所述第一上行BWP映射的下行BWP。
  4. 根据权利要求3所述的方法,其特征在于,所述终端设备根据所述第一上行BWP以及第一映射关系,确定所述目标下行BWP,包括:
    若根据所述第一映射关系确定所述第一上行BWP不映射到任一下行BWP,所述终端设备确定初始下行BWP为所述目标下行BWP。
  5. 根据权利要求3所述的方法,其特征在于,所述终端设备根据所述第一上行BWP以及第一映射关系,确定所述目标下行BWP,包括:
    若根据所述第一映射关系确定所述第一上行BWP映射到第一下行BWP,并且所述第一下行BWP不为所述终端设备当前激活的下行BWP,所述终端设备确定所述第一下行BWP为所述目标下行BWP。
  6. 根据权利要求3所述的方法,其特征在于,所述终端设备根据所述第一上行BWP以及第一映射关系,确定所述目标下行BWP,包括:
    若根据所述第一映射关系确定所述第一上行BWP映射到第一下行BWP,并且所述第一下行BWP不为所述终端设备当前激活的下行BWP,所述终端设备确定初始下行BWP为所述目标下行BWP。
  7. 根据权利要求1至3中任一项所述的方法,其特征在于,所述终端设备确定用于随机接入的目标上行带宽部分BWP和/或目标下行BWP,包括:
    所述终端设备确定当前激活的下行BWP为所述目标下行BWP。
  8. 根据权利要求1至7中任一项所述的方法,其特征在于,所述终端设备确定用于随机接入的目标上行带宽部分BWP和/或目标下行BWP,包括:
    所述终端设备确定当前激活的上行BWP或初始上行BWP为所述目标上行BWP。
  9. 根据权利要求1至8中任一项所述的方法,其特征在于,所述方法还包括:
    所述终端设备接收网络设备发送的第一切换指令,所述第一切换指令用于指示所述终端设备将当前激活的第一上行BWP切换为第二上行BWP;
    所述终端设备根据第一映射关系,确定所述第二上行BWP映射的下行BWP;
    所述终端设备将当前激活的所述第一上行BWP切换至所述第二上行BWP,并且将当前激活的下行BWP切换至所述第二上行BWP映射的下行BWP。
  10. 根据权利要求1至9中任一项所述的方法,其特征在于,所述方法还包括:
    所述终端设备接收网络设备发送的第二切换指令,所述第二切换指令用于指示将当前激活的第一下行BWP切换为第二下行BWP;
    所述终端设备根据第一映射关系,确定所述第二下行BWP映射的上行BWP;
    所述终端设备将当前激活的所述第一下行BWP切换至所述第二下行BWP,并且将当前激活的上行BWP切换至与所述第二下行BWP映射的上行BWP。
  11. 根据权利要求3至10中任一项所述的方法,其特征在于,所述第一映射关系为上行BWP和下行BWP的映射关系。
  12. 根据权利要求11所述的方法,其特征在于,所述第一映射关系为上行BWP的 BWP索引和下行BWP的BWP索引的映射关系。
  13. 根据权利要求12所述的方法,其特征在于,若上行BWP的数量和下行BWP的数量相等,上行BWP的BWP索引K映射到下行BWP的BWP索引k,其中,K,k都为整数,且K=k。
  14. 根据权利要求12所述的方法,其特征在于,若上行BWP的数量大于下行BWP的数量,上行BWP的BWP索引K映射到下行BWP的BWP索引k,其中,K,k都为整数,且k为K对M取模的结果,M为网络设备配置的下行BWP的数量。
  15. 根据权利要求3至10中任一项所述的方法,其特征在于,所述第一映射关系为上行BWP上配置的随机接入资源和下行BWP的映射关系。
  16. 根据权利要求15所述的方法,其特征在于,所述第一映射关系为随机接入资源和下行BWP的BWP索引的映射关系。
  17. 根据权利要求1至16中任一项所述的方法,其特征在于,所述终端设备在所述目标上行和/或下行BWP上,发起竞争随机接入,包括:
    所述终端设备在所述目标上行BWP上,通过所述目标上行BWP上的配置的随机接入资源,发送随机接入前导码;
    所述终端设备在所述目标下行BWP上,接收网络设备发送的随机接入响应RAR。
  18. 根据权利要求1至17中任一项所述的方法,其特征在于,所述方法还包括:
    若所述终端设备当前激活的下行BWP与所述目标下行BWP不同,所述终端设备将当前激活的下行BWP切换至所述目标下行BWP。
  19. 一种用于随机接入的方法,其特征在于,所述方法还包括:
    所述终端设备接收网络设备发送的切换指令,所述切换指令用于指示将当前激活的第一带宽部分BWP切换为第二BWP,其中,所述第一BWP和所述第二BWP为上行BWP或下行BWP;
    所述终端设备根据第一映射关系,同时切换所述终端设备当前激活的上行BWP和下行BWP,其中,所述第一映射关系用于确定所述第二BWP映射的BWP。
  20. 根据权利要求19所述的方法,其特征在于,所述终端设备根据第一映射关系,同时切换所述终端设备当前激活的上行BWP和下行BWP,包括:
    若所述第一BWP和所述第二BWP为上行BWP,所述终端设备将当前激活的上行BWP从所述第一BWP切换至所述第二BWP,并且将当前激活的下行BWP切换至所述第二BWP映射的下行BWP。
  21. 根据权利要求19所述的方法,其特征在于,所述终端设备根据第一映射关系,同时切换所述终端设备当前激活的上行BWP和下行BWP,包括:
    若所述第一BWP和所述第二BWP为下行BWP,所述终端设备将当前激活的下行BWP从所述第一BWP切换至所述第二BWP,并且将当前激活的上行BWP切换至所述第二BWP映射的上行BWP。
  22. 根据权利要求19至21中任一项所述的方法,其特征在于,所述第一映射关系为上行BWP和下行BWP的映射关系。
  23. 根据权利要求22所述的方法,其特征在于,所述第一映射关系为上行BWP的BWP索引和下行BWP的BWP索引的映射关系。
  24. 根据权利要求23所述的方法,其特征在于,若上行BWP的数量和下行BWP的数量相等,上行BWP的BWP索引K映射到下行BWP的BWP索引k,其中,K,k都为整数,且K=k。
  25. 根据权利要求23所述的方法,其特征在于,若上行BWP的数量大于下行BWP的数量,上行BWP的BWP索引K映射到下行BWP的BWP索引k,其中,K,k都为整数,且k为K对M取模的结果,M为网络设备配置的下行BWP的数量。
  26. 根据权利要求19至21中任一项所述的方法,其特征在于,所述第一映射关系 为上行BWP上配置的随机接入资源和下行BWP的映射关系。
  27. 根据权利要求26所述的方法,其特征在于,所述第一映射关系为随机接入资源和下行BWP的BWP索引的映射关系。
  28. 一种用于随机接入的设备,其特征在于,包括:
    确定模块,用于确定用于随机接入的目标上行带宽部分BWP和/或目标下行BWP;
    通信模块,用于在所述目标上行和/或下行BWP上,发起竞争随机接入。
  29. 根据权利要求28所述的设备,其特征在于,所述确定模块还用于:
    根据当前激活的第一上行BWP,确定所述目标下行BWP。
  30. 根据权利要求29所述的设备,其特征在于,所述确定模块还用于:
    根据所述第一上行BWP以及第一映射关系,确定所述目标下行BWP,其中,所述第一映射关系用于确定所述第一上行BWP映射的下行BWP。
  31. 根据权利要求30所述的设备,其特征在于,所述确定模块还用于:
    若根据所述第一映射关系确定所述第一上行BWP不映射到任一下行BWP,确定初始下行BWP为所述目标下行BWP。
  32. 根据权利要求30所述的设备,其特征在于,所述确定模块还用于:
    若根据所述第一映射关系确定所述第一上行BWP映射到第一下行BWP,并且所述第一下行BWP不为所述设备当前激活的下行BWP,确定所述第一下行BWP为所述目标下行BWP。
  33. 根据权利要求30所述的设备,其特征在于,所述确定模块还用于:
    若根据所述第一映射关系确定所述第一上行BWP映射到第一下行BWP,并且所述第一下行BWP不为所述设备当前激活的下行BWP,确定初始下行BWP为所述目标下行BWP。
  34. 根据权利要求28至30中任一项所述的设备,其特征在于,所述确定模块还用于:
    确定当前激活的下行BWP为所述目标下行BWP。
  35. 根据权利要求28至34中任一项所述的设备,其特征在于,所述确定模块还用于:
    确定当前激活的上行BWP或初始上行BWP为所述目标上行BWP。
  36. 根据权利要求28至35中任一项所述的设备,其特征在于,所述通信模块还用于:
    接收网络设备发送的第一切换指令,所述第一切换指令用于指示所述设备将当前激活的第一上行BWP切换为第二上行BWP;
    所述确定模块还用于:根据第一映射关系,确定所述第二上行BWP映射的下行BWP;
    所述设备还包括:
    切换模块,用于将当前激活的所述第一上行BWP切换至所述第二上行BWP,并且将当前激活的下行BWP切换至所述第二上行BWP映射的下行BWP。
  37. 根据权利要求28至36中任一项所述的设备,其特征在于,所述通信模块还用于:
    接收网络设备发送的第二切换指令,所述第二切换指令用于指示将当前激活的第一下行BWP切换为第二下行BWP;
    所述确定模块还用于:根据第一映射关系,确定所述第二下行BWP映射的上行BWP;
    所述设备还包括:
    切换模块,用于将当前激活的所述第一下行BWP切换至所述第二下行BWP,并且将当前激活的上行BWP切换至与所述第二下行BWP映射的上行BWP。
  38. 根据权利要求30至37中任一项所述的设备,其特征在于,所述第一映射关系为上行BWP和下行BWP的映射关系。
  39. 根据权利要求38所述的设备,其特征在于,所述第一映射关系为上行BWP的BWP索引和下行BWP的BWP索引的映射关系。
  40. 根据权利要求39所述的设备,其特征在于,若上行BWP的数量和下行BWP的数量相等,上行BWP的BWP索引K映射到下行BWP的BWP索引k,其中,K,k都为整数,且K=k。
  41. 根据权利要求39所述的设备,其特征在于,若上行BWP的数量大于下行BWP的数量,上行BWP的BWP索引K映射到下行BWP的BWP索引k,其中,K,k都为整数,且k为K对M取模的结果,M为网络设备配置的下行BWP的数量。
  42. 根据权利要求30至37中任一项所述的设备,其特征在于,所述第一映射关系为上行BWP上配置的随机接入资源和下行BWP的映射关系。
  43. 根据权利要求42所述的设备,其特征在于,所述第一映射关系为随机接入资源和下行BWP的BWP索引的映射关系。
  44. 根据权利要求28至43中任一项所述的设备,其特征在于,所述通信模块具体用于:
    在所述目标上行BWP上,通过所述目标上行BWP上的配置的随机接入资源,发送随机接入前导码;
    在所述目标下行BWP上,接收网络设备发送的随机接入响应RAR。
  45. 根据权利要求28至44中任一项所述的设备,其特征在于,所述设备还包括:
    切换模块,用于在所述设备当前激活的下行BWP与所述目标下行BWP不同的情况下,将当前激活的下行BWP切换至所述目标下行BWP。
  46. 一种用于随机接入的设备,其特征在于,包括:
    通信模块,用于接收网络设备发送的切换指令,所述切换指令用于指示将当前激活的第一带宽部分BWP切换为第二BWP,其中,所述第一BWP和所述第二BWP为上行BWP或下行BWP;
    切换模块,用于根据第一映射关系,同时切换所述设备当前激活的上行BWP和下行BWP,其中,所述第一映射关系用于确定所述第二BWP映射的BWP。
  47. 根据权利要求46所述的设备,其特征在于,所述切换模块具体用于:
    若所述第一BWP和所述第二BWP为上行BWP,将当前激活的上行BWP从所述第一BWP切换至所述第二BWP,并且将当前激活的下行BWP切换至所述第二BWP映射的下行BWP。
  48. 根据权利要求46所述的设备,其特征在于,所述切换模块具体用于:
    若所述第一BWP和所述第二BWP为下行BWP,将当前激活的下行BWP从所述第一BWP切换至所述第二BWP,并且将当前激活的上行BWP切换至所述第二BWP映射的上行BWP。
  49. 根据权利要求46至48中任一项所述的设备,其特征在于,所述第一映射关系为上行BWP和下行BWP的映射关系。
  50. 根据权利要求49所述的设备,其特征在于,所述第一映射关系为上行BWP的BWP索引和下行BWP的BWP索引的映射关系。
  51. 根据权利要求50所述的设备,其特征在于,若上行BWP的数量和下行BWP的数量相等,上行BWP的BWP索引K映射到下行BWP的BWP索引k,其中,K,k都为整数,且K=k。
  52. 根据权利要求50所述的设备,其特征在于,若上行BWP的数量大于下行BWP的数量,上行BWP的BWP索引K映射到下行BWP的BWP索引k,其中,K,k都为整数,且k为K对M取模的结果,M为网络设备配置的下行BWP的数量。
  53. 根据权利要求46至48中任一项所述的设备,其特征在于,所述第一映射关系为上行BWP上配置的随机接入资源和下行BWP的映射关系。
  54. 根据权利要求53所述的设备,其特征在于,所述第一映射关系为随机接入资源和下行BWP的BWP索引的映射关系。
PCT/CN2018/081459 2018-03-30 2018-03-30 用于随机接入的方法和设备 WO2019183966A1 (zh)

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