WO2019100340A1 - 随机接入的方法、上报频谱的方法、终端设备和网络设备 - Google Patents

随机接入的方法、上报频谱的方法、终端设备和网络设备 Download PDF

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Publication number
WO2019100340A1
WO2019100340A1 PCT/CN2017/112941 CN2017112941W WO2019100340A1 WO 2019100340 A1 WO2019100340 A1 WO 2019100340A1 CN 2017112941 W CN2017112941 W CN 2017112941W WO 2019100340 A1 WO2019100340 A1 WO 2019100340A1
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WIPO (PCT)
Prior art keywords
terminal device
frequency band
indication information
network device
random access
Prior art date
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PCT/CN2017/112941
Other languages
English (en)
French (fr)
Inventor
杨宁
Original Assignee
Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to MX2020005216A priority Critical patent/MX2020005216A/es
Priority to EP17932725.9A priority patent/EP3703424B1/en
Priority to CN201780097197.7A priority patent/CN111386730B/zh
Priority to SG11202003993TA priority patent/SG11202003993TA/en
Priority to PCT/CN2017/112941 priority patent/WO2019100340A1/zh
Priority to AU2017440654A priority patent/AU2017440654B2/en
Priority to JP2020526034A priority patent/JP2021504994A/ja
Priority to KR1020207014560A priority patent/KR20200088817A/ko
Publication of WO2019100340A1 publication Critical patent/WO2019100340A1/zh
Priority to US16/871,536 priority patent/US20200275495A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • 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
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/51—Allocation or scheduling criteria for wireless resources based on terminal or device properties
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal

Definitions

  • the embodiments of the present invention relate to the field of communications, and more specifically, to a method for random access, a method for reporting a spectrum, a terminal device, and a network device.
  • the uplink coverage is limited, and in order to improve the uplink coverage, the LTE spectrum (relative frequency) is utilized. Lower) As the secondary uplink spectrum (ie, there is one auxiliary uplink carrier), the uplink coverage can be improved.
  • the UE since there is no configuration information about the bandwidth in the configuration information of the SUL, in the normal NR cell, the UE only obtains the frequency information of the cell from the cell search. There is no information about the downlink bandwidth of the cell.
  • SUL secondary uplink
  • the terminal device may only support one of the multiple frequency bands.
  • the terminal device does not support the frequency band in which the frequency of the NR cell is located, but supports another frequency band in which the frequency band is located. That is to say, the network device does not know the spectrum range supported by the terminal device. Therefore, if the network device schedules the terminal device beyond the frequency range supported by the terminal device, data transmission and reception failure may occur.
  • a random access method, a method for reporting a spectrum, a terminal device, and a network device are provided. It can effectively improve the accuracy of the network equipment scheduling terminal equipment.
  • a method for random access including:
  • the terminal device acquires the first frequency point by using a cell search
  • the terminal acquires a first frequency band supported by the network device by using a system broadcast message
  • the terminal device determines, in a plurality of frequency bands corresponding to the first frequency point, a second frequency band supported by the terminal device;
  • the random access procedure is initiated.
  • the terminal device when the first frequency band and the second frequency band are different frequency bands, the terminal device enables the network device to accurately determine the spectrum range that can be scheduled by the terminal device by reporting the indication information, thereby improving the scheduling of the network device. The accuracy of the terminal device.
  • the method further includes:
  • the terminal device When the first frequency band and the second frequency band are different frequency bands, the terminal device generates indication information, where the indication information is used by the network device to determine a spectrum range that the terminal device can schedule, or the indication The information is used to indicate the spectrum range; the terminal device sends the indication information to the network device.
  • the indication information is more specifically used to indicate that the frequency band supported by the terminal device is the second frequency band.
  • the spectral range is a range formed by overlapping spectra of the first frequency band and the second frequency band.
  • the method before the terminal device generates the indication information, the method further includes:
  • the terminal device receives the first mapping relationship information that is sent by the network device, where the first mapping relationship information includes: a correspondence between the multiple frequency bands and multiple resources, and each of the multiple resources includes a preamble a code and/or a physical random access control channel PRACH resource; the terminal device determines, according to the second frequency band and the first mapping relationship information, a first resource corresponding to the second frequency band; wherein the terminal device Sending the indication information to the network device, including:
  • the terminal device initiates a random access procedure by using the first resource, and indicates, by using the first resource, that a frequency band supported by the terminal device is the second frequency band.
  • the method before the terminal device generates the indication information, the method further includes:
  • the terminal device receives the second mapping relationship information that is sent by the network device, where the second mapping relationship information includes: a correspondence between multiple indexes and the multiple frequency bands, where the multiple indexes are different from each other;
  • the device determines, according to the second frequency band and the second mapping relationship information, a first index corresponding to the second frequency band, where the sending, by the terminal device, the indication information to the network device includes:
  • the terminal device sends the first index to the network device, where the first index is used to indicate that the channel supported by the terminal device is the second frequency band.
  • the sending, by the terminal device, the indication information to the network device includes:
  • the terminal device sends a media access control RRC message to the network, where the RRC message includes the indication information.
  • a method for random access including:
  • the network device sends the first frequency band supported by the network device to the terminal device by means of system broadcast;
  • the network device responds to a random access procedure initiated by the terminal device.
  • the method further includes:
  • the network device receives, by the network device, indication information that is sent by the terminal device, where the indication information is used by the network device to determine a spectrum range that the terminal device can schedule, or the indication information is used to indicate the spectrum range;
  • the network device responds to the random access procedure initiated by the terminal device, including:
  • the network device responds to the random access procedure according to the spectrum range.
  • the indication information is more specifically used to indicate that the frequency band supported by the terminal device is the second frequency band.
  • the spectral range is a range formed by overlapping spectra of the first frequency band and the second frequency band.
  • the method before the receiving, by the network device, the indication information sent by the terminal device, the method further includes:
  • the network device sends the first mapping relationship information to the terminal device, where the first mapping relationship information includes: a correspondence between the multiple frequency bands and multiple resources, and each of the multiple resources includes a preamble a code and/or a physical random access control channel, the PRACH resource, where the network device receives the indication information sent by the terminal device, including:
  • the network device Determining, by the network device, the first resource used by the terminal device to initiate a random access procedure; the network device determining, according to the first mapping relationship information, the second frequency band corresponding to the first resource as the terminal The frequency band supported by the device.
  • the method before the receiving, by the network device, the indication information sent by the terminal device, the method further includes:
  • the network device sends the second mapping relationship information to the terminal device, where the second mapping relationship information includes: a plurality of indexes and a correspondence relationship between the multiple frequency bands, where the multiple indexes are different from each other; Receiving the indication information sent by the terminal device, where the network device includes:
  • the receiving, by the network device, the indication information sent by the terminal device includes:
  • the network device receives a media access control RRC message sent by the terminal device, where the RRC message includes the indication information.
  • a method for reporting a spectrum including:
  • the terminal device acquires a first frequency point by using a cell search
  • the terminal device determines, in a plurality of frequency bands corresponding to the first frequency point, a second frequency band supported by the terminal device;
  • the terminal device generates indication information according to the second frequency band, where the indication information is used by the network device to determine a spectrum range that the terminal device can schedule, or the indication information is used to indicate the spectrum range;
  • the terminal device sends the indication information to the network device.
  • the terminal device when the first frequency band and the second frequency band are different frequency bands, the terminal device enables the network device to accurately determine the spectrum range that can be scheduled by the terminal device by reporting the indication information, thereby improving the scheduling of the network device. The accuracy of the terminal device.
  • the indication information is more specifically used to indicate that the frequency band supported by the terminal device is the second frequency band.
  • the method further includes:
  • the terminal device initiates a random access procedure to the network device according to the indication information.
  • a method for reporting a spectrum including:
  • the network device receives the indication information that is sent by the terminal device, where the indication information is used by the network device to determine a spectrum range that the terminal device can schedule, or the indication information is used to indicate the spectrum range;
  • the network device determines the spectrum range according to the indication information.
  • the indication information is more specifically used to indicate that the frequency band supported by the terminal device is the second frequency band.
  • the method further includes:
  • the network device responds to the random access procedure initiated by the terminal device according to the spectrum range.
  • a terminal device including:
  • a processing unit configured to acquire a first frequency point by using a cell search
  • a transceiver unit configured to acquire, by using a system broadcast message, a first frequency band supported by the network device
  • the processing unit is further configured to:
  • a terminal device including:
  • a processor configured to acquire a first frequency point by using a cell search
  • a transceiver configured to acquire, by using a system broadcast message, a first frequency band supported by the network device
  • the processor is further configured to:
  • a network device including:
  • a transceiver unit configured to send, by using a system broadcast, a first frequency band supported by the network device to a terminal device;
  • a processing unit configured to respond to the random access procedure initiated by the terminal device.
  • a network device including:
  • a transceiver configured to send, by using a system broadcast, a first frequency band supported by the network device to a terminal device;
  • a processor configured to respond to the random access procedure initiated by the terminal device.
  • a terminal device including:
  • processing unit is configured to:
  • the indication information is used by the network device to determine a spectrum range that the terminal device can schedule, or the indication information is used to indicate the spectrum range;
  • transceiver unit configured to send the indication information to the network device.
  • a terminal device including:
  • a processor for:
  • the indication information is used by the network device to determine a spectrum range that the terminal device can schedule, or the indication information is used to indicate the spectrum range;
  • a transceiver configured to send the indication information to the network device.
  • a network device including:
  • a transceiver unit configured to receive indication information that is sent by the terminal device, where the indication information is used by the network device to determine a spectrum range that the terminal device can schedule, or the indication information is used to indicate the spectrum range;
  • a processing unit configured to determine the spectrum range according to the indication information.
  • a network device including:
  • a transceiver configured to receive the indication information sent by the terminal device, where the indication information is used by the network device to determine a spectrum range that the terminal device can schedule, or the indication information is used to indicate the spectrum range;
  • a processor configured to determine the spectrum range according to the indication information.
  • a thirteenth aspect a computer readable medium for storing a computer program, the computer program comprising instructions for performing the method embodiment of any of the first to fourth aspects above.
  • a computer chip comprising: an input interface, an output interface, at least one processor, and a memory, wherein the processor is configured to execute code in the memory when When the code is executed, the processor may implement the various processes performed by the network device in the methods of the above first to fourth aspects.
  • a computer chip comprising: an input interface, an output interface, at least one processor, and a memory, wherein the processor is configured to execute code in the memory, when the code is executed,
  • the processor can implement the respective processes performed by the terminal device in the above first to fourth aspects.
  • a communication system comprising the network device and the terminal device described above.
  • FIG. 1 is an example of an application scenario of the present invention.
  • FIG. 2 is a schematic flowchart of a method for determining random access according to an embodiment of the present invention.
  • FIG. 3 is a schematic flowchart of a method for reporting a spectrum according to an embodiment of the present invention
  • FIG. 4 is a schematic block diagram of a terminal device according to an embodiment of the present invention.
  • FIG. 5 is a schematic block diagram of another terminal device according to an embodiment of the present invention.
  • FIG. 6 is a schematic block diagram of a network device according to an embodiment of the present invention.
  • FIG. 7 is a schematic block diagram of another network device according to an embodiment of the present invention.
  • FIG. 1 is an example of an application scenario of an embodiment of the present invention.
  • the terminal device may have one downlink carrier and two uplink carriers (as shown in FIG. 1, the first uplink carrier and the second uplink carrier).
  • the first uplink carrier and the downlink carrier may be carriers on the NR high frequency band
  • the second uplink carrier may be a carrier on the LTE low frequency band.
  • the terminal device shown in FIG. 1 has two uplink carriers, which are only exemplary descriptions, which are not specifically limited in the embodiment of the present invention.
  • the terminal device can also support three uplink carriers and the like.
  • the motivation for introducing the second uplink carrier is to improve the uplink coverage of the NR high frequency band.
  • the uplink coverage of the NR is limited, and the frequency of the NR is high.
  • the uplink coverage of the NR is limited.
  • a method of transmitting data By using the LTE spectrum (low relative frequency) as the auxiliary uplink carrier, the uplink coverage effect can be improved.
  • the first uplink carrier and the second uplink carrier combination may be similar to carrier aggregation in LTE. (CA), just the downlink without pairing. That is, from the perspective of band combination, the second uplink carrier is a cell with only uplink and no paired downlink, but its uplink is controlled by a certain downlink carrier, that is, when the second uplink carrier is configured, and the second uplink is configured.
  • the carrier is a secondary serving cell (SCell) without downlink, and the control of the second uplink carrier depends on the primary serving cell (PCell).
  • SCell secondary serving cell
  • PCell primary serving cell
  • the first communication system and the second communication system may be various communication systems, such as a Global System of Mobile communication (GSM) system, a Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, LTE Time Division Duplex (TDD) ), Universal Mobile Telecommunication System (UMTS), etc.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • the present invention describes various embodiments in connection with network devices (the first to fourth network devices) and terminal devices.
  • the network device may refer to any entity on the network side that is used to send or receive signals.
  • it may be a device communication of a machine type communication (MTC), a base station (BTS) in GSM or CDMA, a base station (NodeB) in WCDMA, an evolved base station (Evolutional Node B, eNB or eNodeB in LTE). ), base station equipment in a 5G network, and the like.
  • MTC machine type communication
  • BTS base station
  • NodeB base station
  • Evolutional Node B eNB or eNodeB in LTE
  • 5G network and the like.
  • the terminal device can be any terminal device. Specifically, the terminal device can communicate with one or more core networks (Core Network) via a Radio Access Network (RAN), and can also be referred to as an access terminal, a user equipment (User Equipment, UE), and a user. Unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device. For example, it can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), and a wireless communication function. Handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, and terminal devices in 5G networks, and the like.
  • Core Network Radio Access Network
  • RAN Radio Access Network
  • UE User Equipment
  • Unit subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication
  • the UE Since there is no configuration information about the bandwidth in the configuration information of the SUL, in the normal NR cell, the UE only obtains the frequency information of the cell from the cell search, and there is no information about the downlink bandwidth of the cell.
  • the terminal device may only support one of the multiple frequency bands.
  • the terminal device does not support the frequency band in which the frequency of the NR cell is located, but supports another frequency band in which the frequency band is located. That is to say, the network device does not know the spectrum range supported by the terminal device. Therefore, if the network device schedules the terminal device beyond the frequency range supported by the terminal device, data transmission and reception failure may occur.
  • a random access method and a method for reporting a spectrum are proposed.
  • the network device is enabled to know the frequency band or the spectrum range supported by the terminal device, thereby improving the accuracy of the network device for allocating resources to the terminal device.
  • the terminal device acquires the first frequency point and the first frequency band.
  • the terminal device initiates a random access procedure to the network device.
  • the terminal device acquires a first frequency point by using a cell search; the terminal acquires a first frequency band supported by the network device by using a system broadcast message; the terminal device determines the terminal device in multiple frequency bands corresponding to the first frequency point. The second frequency band supported; the terminal device determines that the first frequency band and the second frequency band are the same frequency band, and initiates the random access procedure.
  • the network device sends the first frequency band supported by the network device to the terminal device by means of system broadcast; and responds to the random access procedure initiated by the terminal device.
  • the terminal device if the terminal device supports the first frequency band, the terminal device normally initiates a random access procedure.
  • the network device sends the frequency band 1 supported by the network device to the terminal device by means of system broadcast. If the terminal device supports the frequency band 1, the terminal device normally initiates a random access procedure. In this case, the network device is in the frequency band 1 The terminal device is scheduled to not exceed the frequency range supported by the terminal device.
  • the network device is likely to schedule the terminal device on the first frequency band, causing the network device to exceed the terminal device support when scheduling the terminal device.
  • the frequency range which in turn causes data to fail to send and receive.
  • the terminal device indicates to the network device, by using the indication information, the spectrum range that the terminal device can schedule, or directly indicates the spectrum range.
  • the terminal device when the first frequency band and the second frequency band are different frequency bands, the terminal device generates indication information, where the indication information is used by the network device to determine a spectrum range that the terminal device can schedule, or The indication information is used to indicate the spectrum range; the terminal device sends the indication information to the network device. For the network device, the network device receives the indication information sent by the terminal device, and responds to the random access procedure according to the spectrum range.
  • the terminal device when the first frequency band and the second frequency band are different frequency bands, the terminal device enables the network device to accurately determine the spectrum range that can be scheduled by the terminal device by reporting the indication information, thereby improving the scheduling of the network device. The accuracy of the terminal device.
  • the indication information in the embodiment of the present invention is intended to enable the network device to know the spectrum range supported by the terminal device, and the specific form of the indication information is not limited in the embodiment of the present invention.
  • the indication information may be used to indicate that the frequency band supported by the terminal device is the second frequency band.
  • the terminal device may indicate, in a message (MSG3) in the random access procedure, a network device configurable bandwidth range of the terminal device in the cell.
  • the indication information may be directly used to indicate the spectrum range, and further, the spectrum range is a range formed by overlapping spectra of the first frequency band and the second frequency band.
  • the terminal device can implicitly indicate the network device.
  • the terminal device receives the network device to send the first mapping relationship information, where the first mapping relationship information includes: a correspondence between the multiple frequency bands and multiple resources, where Each resource includes a preamble and/or a physical random access control channel PRACH resource; and, when the frequency band supported by the terminal device is the second frequency band, the terminal device may determine, according to the second frequency band and the first mapping relationship information, The first resource corresponding to the second frequency band; the terminal device initiates a random access procedure by using the first resource, and indicates, by using the first resource, that the frequency band supported by the terminal device is the second frequency band.
  • the first mapping relationship information includes: a correspondence between the multiple frequency bands and multiple resources, where Each resource includes a preamble and/or a physical random access control channel PRACH resource; and, when the frequency band supported by the terminal device is the second frequency band, the terminal device may determine, according to the second frequency band and the first mapping relationship information, The first resource corresponding to the second frequency band; the terminal device initiates a random access procedure by using the first resource, and
  • the network device Determining, by the network device, the first resource used by the terminal device to initiate a random access procedure; the network device determining, according to the first mapping relationship information, the second frequency band corresponding to the first resource as the terminal The frequency band supported by the device.
  • the terminal device may indicate, in a message (MSG3) in the random access procedure, a frequency band supported by the network device by the terminal device.
  • MSG3 message
  • the terminal device may indicate, in a message (MSG3) in the random access procedure, a frequency band supported by the network device by the terminal device.
  • the terminal device receives the network device to send the second mapping relationship information, where the second mapping relationship information includes: a plurality of indexes and a correspondence relationship between the multiple frequency bands, where the multiple indexes are different from each other;
  • the terminal device can be based on the second frequency band And determining, by the second mapping relationship information, a first index corresponding to the second frequency band; the terminal device sends the first index to the network device, where the first index is used to indicate that the channel supported by the terminal device is the Second frequency band.
  • the network device receives the first index sent by the terminal device, and determines, according to the second mapping relationship information and the first index, the second frequency band corresponding to the first index, which is supported by the terminal device. frequency band.
  • the terminal device may indicate, in a message (MSG3) in the random access procedure, a frequency band supported by the network device by the terminal device.
  • MSG3 message
  • the terminal device may indicate, in a message (MSG3) in the random access procedure, a frequency band supported by the network device by the terminal device.
  • the terminal device can display the network device in a display manner.
  • the terminal device sends a media access control RRC message to the network, where the RRC message includes the indication information.
  • the foregoing terminal device sends the indication information to the network
  • the format of the indication information is an exemplary description, and the embodiment of the present invention is not limited thereto.
  • the indication information may also be used to indicate a frequency band that is not supported by the terminal device.
  • the first frequency point corresponds to the frequency band 1 and the frequency band 2
  • the frequency band supported by the network device is the frequency band 1
  • the frequency band supported by the terminal device is the frequency band 2.
  • the terminal device may indicate that the frequency band supported by the terminal device is the frequency band 1, and the terminal device may also indicate that the frequency band not supported by the terminal device is the frequency band 2.
  • the network device may determine, according to the frequency band 1 and the frequency band 2 corresponding to the first frequency point, and the indication information, the spectrum range that the terminal device can schedule.
  • FIG. 3 is a schematic flowchart of a method for reporting a spectrum according to an embodiment of the present invention.
  • the method includes:
  • the terminal device acquires the first frequency point
  • the terminal device determines, in a plurality of frequency bands corresponding to the first frequency point, a second frequency band supported by the terminal device.
  • the terminal device generates indication information according to the second frequency band.
  • the terminal device sends the indication information to the network device.
  • the terminal device acquires a first frequency point by using a cell search; the terminal device determines, in a plurality of frequency bands corresponding to the first frequency point, a second frequency band supported by the terminal device; the terminal device according to the second frequency band Generating indication information, the indication information is used by the network device to determine a spectrum range that the terminal device can schedule, or the indication information is used to indicate the spectrum range; the terminal device is to the network The device sends the indication information.
  • the network device receives the indication information sent by the terminal device, and determines the spectrum range according to the indication information.
  • the indication information is more specifically used to indicate that the frequency band supported by the terminal device is the second frequency band.
  • the terminal device initiates a random access procedure to the network device according to the indication information.
  • the network device responds to the random access procedure initiated by the terminal device according to the spectrum range.
  • FIG. 4 is a schematic block diagram of a terminal device according to an embodiment of the present invention.
  • a terminal device is provided in the embodiment of the present invention. Specifically, as shown in FIG. 4, the terminal device includes:
  • the processing unit 410 is configured to acquire a first frequency point by using a cell search.
  • the transceiver unit 420 is configured to acquire, by using a system broadcast message, a first frequency band supported by the network device;
  • the processing unit 410 is further configured to:
  • processing unit 410 is further configured to:
  • Unit 420 is also used to:
  • the indication information is sent to the network device.
  • the indication information is used to indicate that the frequency band supported by the terminal device is the second frequency band.
  • the spectrum range is a range formed by overlapping spectra of the first frequency band and the second frequency band.
  • the transceiver unit 420 is further configured to:
  • the receiving the network device sends the first mapping relationship information, where the first mapping relationship information includes: a correspondence between the multiple frequency bands and multiple resources, each of the multiple resources includes a preamble and/or a physical random access control channel PRACH resource;
  • the processing unit 410 is further configured to:
  • the terminal device Determining, by the second frequency band and the first mapping relationship information, a first resource corresponding to the second frequency band; the terminal device initiates a random access process by using the first resource, and indicates, by using the first resource, that the terminal device supports The frequency band is the second frequency band.
  • the transceiver unit 420 is further configured to:
  • the receiving the network device sends the second mapping relationship information, where the second mapping relationship information includes: a plurality of indexes and a correspondence relationship between the multiple frequency bands, the multiple indexes are different from each other;
  • the unit 410 is further configured to: determine, according to the second frequency band and the second mapping relationship information, a first index corresponding to the second frequency band;
  • the transceiver unit 420 is further configured to: send the first index to the network device, where the An index is used to indicate that the channel supported by the terminal device is the second frequency band.
  • the transceiver unit 420 is specifically configured to:
  • the terminal device includes:
  • Processing unit 410 the processing unit 410 is configured to:
  • the transceiver unit 420 is configured to send the indication information to the network device.
  • the indication information is used to indicate that the frequency band supported by the terminal device is the second frequency band.
  • processing unit 410 is further configured to:
  • the processing unit 410 can be implemented by a processor, and the transceiver unit 420 can be implemented by a transceiver.
  • the terminal device 500 can include a processor 510, a transceiver 520, and a memory 530.
  • the memory 530 can be used to store indication information, and can also be used to store code, instructions, and the like executed by the processor 510.
  • the various components in the terminal device 500 are connected by a bus system, wherein the bus system includes a power bus, a control bus, and a status signal bus in addition to the data bus.
  • the terminal device 500 shown in FIG. 5 can implement the various processes implemented by the terminal device in the foregoing method embodiments shown in FIG. 2 and FIG. 3, and details are not repeatedly described herein.
  • FIG. 6 is a schematic block diagram of a network device according to an embodiment of the present invention.
  • a network device is provided in the embodiment of the present invention. Specifically, as shown in FIG. 6, the network device includes:
  • the transceiver unit 610 is configured to send, by using a system broadcast, a first frequency band supported by the network device to the terminal device;
  • the processing unit 620 is configured to respond to the random access procedure initiated by the terminal device.
  • the transceiver unit 610 is further configured to:
  • the processing unit 620 is specifically configured to:
  • the indication information is used to indicate that the frequency band supported by the terminal device is the second frequency band.
  • the spectrum range is a range formed by overlapping spectra of the first frequency band and the second frequency band.
  • the transceiver unit 610 is specifically configured to:
  • the first mapping relationship information is sent to the terminal device, where the first mapping relationship information includes: a correspondence between the multiple frequency bands and multiple resources, and each of the multiple resources And including a preamble and/or a physical random access control channel (PRACH) resource; determining a first resource used by the terminal device to initiate a random access procedure; determining, according to the first mapping relationship information, a second frequency band corresponding to the first resource The frequency band supported by the terminal device.
  • PRACH physical random access control channel
  • the transceiver unit 610 is specifically configured to:
  • the second mapping relationship information is sent to the terminal device, where the second mapping relationship information includes: a plurality of indexes and corresponding relationships of the multiple frequency bands, the multiple indexes are different from each other; a first index sent by the terminal device; determining, according to the second mapping relationship information and the first index, a second frequency band corresponding to the first index as a frequency band supported by the terminal device.
  • the transceiver unit 610 is more specifically configured to:
  • the network device includes:
  • the transceiver unit 610 is configured to receive indication information sent by the terminal device, where the indication information is used
  • the network device determines a spectrum range that the terminal device can schedule, or the indication information is used to indicate the spectrum range;
  • the processing unit 620 is configured to determine the spectrum range according to the indication information.
  • the indication information is used to indicate that the frequency band supported by the terminal device is the second frequency band.
  • processing unit 620 is further configured to:
  • transceiving unit 610 can be implemented by a transceiver
  • processing unit 620 can be implemented by a processor.
  • network device 700 can include a processor 710, a transceiver 720, and a memory 730.
  • the memory 730 can be used to store indication information, and can also be used to store code, instructions, and the like executed by the processor 710.
  • the various components in the network device 700 are connected by a bus system, wherein the bus system includes a power bus, a control bus, and a status signal bus in addition to the data bus.
  • the network device 700 shown in FIG. 7 can implement the various processes implemented by the network device in the foregoing method embodiments shown in FIG. 2 and FIG. 3, and details are not described herein.
  • each step of the method embodiment in the embodiment of the present invention may be completed by an integrated logic circuit of hardware in a processor or an instruction in a form of software. More specifically, the steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor.
  • the software modules 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, and the processor reads the information in the memory and combines the hardware to complete the steps of the above method.
  • the processor may be an integrated circuit chip with signal processing capability, and the methods, steps, and logic blocks disclosed in the embodiments of the present invention may be implemented or executed.
  • the above processor may be a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or Other programmable logic devices, transistor logic devices, discrete hardware components, and the like.
  • the general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the memory may be a volatile memory or a non-volatile memory. Or both volatile and non-volatile memory can be included.
  • the non-volatile memory may be a read-only memory (ROM), a programmable read only memory (ROMM), an erasable programmable read only memory (erasable PROM, EPROM), or an electrical Erase programmable EPROM (EEPROM) or flash memory.
  • the volatile memory can be a random access memory (RAM) that acts as an external cache.
  • the memory in the embodiment of the present invention may also be a static random access memory (SRAM), a dynamic random access memory (DRAM), or a dynamic random access memory (DRAM).
  • SDRAM Synchronous dynamic random access memory
  • DDR double data rate synchronous dynamic random access memory
  • ESDRAM enhanced synchronous dynamic random access memory
  • SLDRAM synchronous connection Synchro link DRAM
  • DR RAM direct memory bus
  • the words “at time” as used herein may be interpreted as “if” or “if” or “when” or “in response to determining” or “in response to detecting” ".
  • the phrase “if determined” or “if detected (conditions or events stated)” may be interpreted as “when determined” or “in response to determination” or “when detected (stated condition or event) "Time” or “in response to a test (condition or event stated)”.
  • the disclosed systems, devices, and methods may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the unit is only a logical function division.
  • multiple units or components may be combined.
  • 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 objectives of the embodiments of the present invention.
  • each functional unit in the embodiment of the present invention 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 technical solution of the embodiments of the present invention may be embodied in the form of a software product stored in a storage medium.
  • the instructions include a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method of the embodiments of the present invention.
  • the foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read only memory, a random access memory, a magnetic disk, or an optical disk.

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Abstract

提供了一种随机接入的方法、上报频谱的方法、终端设备和网络设备。该方法包括：终端设备通过小区搜索获取第一频点；该终端通过系统广播消息获取网络设备支持的第一频带；该终端设备在该第一频点对应的多个频带中，确定该终端设备支持的第二频带；该终端设备确定该第一频带和该第二频带为相同的频带时，发起该随机接入过程。本发明实施例中，该第一频带和该第二频带为不同的频带时，终端设备通过上报指示信息使得网络设备能够准确确定出该终端设备可调度的频谱范围，进而提高该网络设备调度该终端设备的准确度。

Description

随机接入的方法、上报频谱的方法、终端设备和网络设备 技术领域
本发明实施例涉及通信领域，并且更具体地，涉及随机接入的方法、上报频谱的方法、终端设备和网络设备。
背景技术
随着人们对速率、延迟、高速移动性、能效的追求以及未来生活中业务的多样性、复杂性。第三代合作伙伴计划(The 3rd Generation Partnership Project，3GPP)国际标准组织开始研发第五代移动通信技术(5-Generation，5G)。在新空口(New Radio,NR)早期部署时，完整的NR覆盖很难获取，所以典型的网络覆盖是广域的长期演进(Long Term Evolution，LTE)覆盖和NR的孤岛覆盖模式。而且由于大量的LTE部署在6吉赫(GHz)以下，可用于5G的6GHz以下频谱很少。因此，NR必须研究6GHz以上的频谱应用，而高频段覆盖有限、信号衰落快。
现有技术中，由于终端设备上行功率受限，而且NR的频谱(频率高，传播损失高)的频率又较高，所以上行覆盖会受限，为了提高上行覆盖，利用LTE频谱(相对频率较低)作为辅助上行频谱(即，存在一个辅助上行链路载波)，可以提高上行覆盖。
但是，针对具有辅助上行链路(SUL)的场景下，由于SUL的配置信息里面没有关于带宽的配置信息，同样，在正常的NR小区里面，UE只是从小区搜索中获取到小区的频点信息，并没有关于小区下行带宽的信息。
而且，目前的频带配置，可能出现某两个频带之间的频率范围有重叠，即，一个频点对应多个频带的情况，而终端设备可能只支持该多个频带中的其中一个。例如，终端设备不支持该NR小区的频点所在的频带，而是支持该频带所在的另一个频带。也就是说，网络设备并不知道终端设备支持的频谱范围，由此，如果网络设备调度终端设备时超过该终端设备支持的频率范围，就会导致数据收发失败。
发明内容
提供了一种随机接入的方法、上报频谱的方法、终端设备和网络设备。 能够有效提高网络设备调度终端设备的准确度。
第一方面，提供了一种随机接入的方法，包括：
终端设备通过小区搜索获取第一频点；
所述终端通过系统广播消息获取网络设备支持的第一频带；
所述终端设备在所述第一频点对应的多个频带中，确定所述终端设备支持的第二频带；
所述终端设备确定所述第一频带和所述第二频带为相同的频带时，发起所述随机接入过程。
本发明实施例中，该第一频带和该第二频带为不同的频带时，终端设备通过上报指示信息使得网络设备能够准确确定出该终端设备可调度的频谱范围，进而提高该网络设备调度该终端设备的准确度。
在一些可能的实现方式中，所述方法还包括：
所述第一频带和所述第二频带为不同的频带时，所述终端设备生成指示信息，所述指示信息用于所述网络设备确定所述终端设备可调度的频谱范围，或者所述指示信息用于指示所述频谱范围；所述终端设备向所述网络设备发送所述指示信息。
在一些可能的实现方式中，所述指示信息更具体的用于指示所述终端设备支持的频带为所述第二频带。
在一些可能的实现方式中，所述频谱范围为所述第一频带和所述第二频带的重叠频谱形成的范围。
在一些可能的实现方式中，所述终端设备生成指示信息之前，所述方法还包括：
所述终端设备接收所述网络设备发送第一映射关系信息，所述第一映射关系信息包括：所述多个频带与多个资源的对应关系，所述多个资源中的每个资源包括前导码和/或物理随机接入控制信道PRACH资源；所述终端设备根据所述第二频带和所述第一映射关系信息，确定所述第二频带对应的第一资源；其中，所述终端设备向所述网络设备发送所述指示信息，包括：
所述终端设备通过所述第一资源发起随机接入过程，并通过所述第一资源指示所述终端设备支持的频带为所述第二频带。
在一些可能的实现方式中，所述终端设备生成指示信息之前，所述方法还包括：
所述终端设备接收所述网络设备发送第二映射关系信息，所述第二映射关系信息包括：多个索引和所述多个频带的对应关系，所述多个索引互不相同；所述终端设备根据所述第二频带和所述第二映射关系信息，确定所述第二频带对应的第一索引；其中，所述终端设备向所述网络设备发送所述指示信息，包括：
所述终端设备向所述网络设备发送所述第一索引，所述第一索引用于指示所述终端设备支持的频道为所述第二频带。
在一些可能的实现方式中，所述终端设备向所述网络设备发送所述指示信息，包括：
所述终端设备向所述网络发送媒体接入控制RRC消息，所述RRC消息包括所述指示信息。
第二方面，提供了一种随机接入的方法，包括：
网络设备通过系统广播的方式向终端设备发送所述网络设备支持的第一频带；
所述网络设备响应所述终端设备发起的随机接入过程。
在一些可能的实现方式中，所述方法还包括：
所述网络设备接收所述终端设备发送的指示信息，所述指示信息用于网络设备确定所述终端设备可调度的频谱范围，或者所述指示信息用于指示所述频谱范围；其中，所述网络设备响应所述终端设备发起的随机接入过程，包括：
所述网络设备根据所述频谱范围响应所述随机接入过程。
在一些可能的实现方式中，所述指示信息更具体的用于指示所述终端设备支持的频带为所述第二频带。
在一些可能的实现方式中，所述频谱范围为所述第一频带和所述第二频带的重叠频谱形成的范围。
在一些可能的实现方式中，所述网络设备接收所述终端设备发送的指示信息之前，所述方法还包括：
所述网络设备向所述终端设备发送第一映射关系信息，所述第一映射关系信息包括：所述多个频带与多个资源的对应关系，所述多个资源中的每个资源包括前导码和/或物理随机接入控制信道PRACH资源；其中，所述网络设备接收所述终端设备发送的指示信息，包括：
所述网络设备确定所述终端设备发起随机接入过程时使用的第一资源；所述网络设备根据所述第一映射关系信息，将所述第一资源对应的第二频带确定为所述终端设备支持的频带。
在一些可能的实现方式中，所述网络设备接收所述终端设备发送的指示信息之前，所述方法还包括：
所述网络设备向所述终端设备发送第二映射关系信息，所述第二映射关系信息包括：多个索引和所述多个频带的对应关系，所述多个索引互不相同；其中，所述网络设备接收所述终端设备发送的指示信息，包括：
所述网络设备接收所述终端设备发送的第一索引；所述网络设备根据所述第二映射关系信息和所述第一索引，将所述第一索引对应的第二频带确定为所述终端设备支持的频带。
在一些可能的实现方式中，所述网络设备接收所述终端设备发送的指示信息，包括：
所述网络设备接收所述终端设备发送的媒体接入控制RRC消息，所述RRC消息包括所述指示信息。
第三方面，提供了一种上报频谱的方法，包括：
所述终端设备通过小区搜索获取第一频点；
所述终端设备在所述第一频点对应的多个频带中，确定所述终端设备支持的第二频带；
所述终端设备根据所述第二频带生成指示信息，所述指示信息用于网络设备确定所述终端设备可调度的频谱范围，或者所述指示信息用于指示所述频谱范围；
所述终端设备向所述网络设备发送所述指示信息。
本发明实施例中，该第一频带和该第二频带为不同的频带时，终端设备通过上报指示信息使得网络设备能够准确确定出该终端设备可调度的频谱范围，进而提高该网络设备调度该终端设备的准确度。
在一些可能的实现方式中，所述指示信息更具体的用于指示所述终端设备支持的频带为所述第二频带。
在一些可能的实现方式中，所述方法还包括：
所述终端设备根据所述指示信息向所述网络设备发起随机接入过程。
第四方面，提供了一种上报频谱的方法，包括：
网络设备接收所述终端设备发送的指示信息，所述指示信息用于网络设备确定所述终端设备可调度的频谱范围，或者所述指示信息用于指示所述频谱范围；
所述网络设备根据所述指示信息，确定所述频谱范围。
在一些可能的实现方式中，所述指示信息更具体的用于指示所述终端设备支持的频带为所述第二频带。
在一些可能的实现方式中，所述方法还包括：
所述网络设备根据所述频谱范围，响应所述终端设备发起的随机接入过程。
第五方面，提供了一种终端设备，包括：
处理单元，用于通过小区搜索获取第一频点；
收发单元，用于通过系统广播消息获取网络设备支持的第一频带；
所述处理单元还用于：
在所述第一频点对应的多个频带中，确定所述终端设备支持的第二频带；确定所述第一频带和所述第二频带为相同的频带时，发起所述随机接入过程。
第六方面，提供了一种终端设备，包括：
处理器，用于通过小区搜索获取第一频点；
收发器，用于通过系统广播消息获取网络设备支持的第一频带；
所述处理器还用于：
在所述第一频点对应的多个频带中，确定所述终端设备支持的第二频带；确定所述第一频带和所述第二频带为相同的频带时，发起所述随机接入过程。
第七方面，提供了一种网络设备，包括：
收发单元，用于通过系统广播的方式向终端设备发送所述网络设备支持的第一频带；
处理单元，用于响应所述终端设备发起的随机接入过程。
第八方面，提供了一种网络设备，包括：
收发器，用于通过系统广播的方式向终端设备发送所述网络设备支持的第一频带；
处理器，用于响应所述终端设备发起的随机接入过程。
第九方面，提供了一种终端设备，包括：
处理单元，所述处理单元用于：
通过小区搜索获取第一频点；
在所述第一频点对应的多个频带中，确定所述终端设备支持的第二频带；
根据所述第二频带生成指示信息，所述指示信息用于网络设备确定所述终端设备可调度的频谱范围，或者所述指示信息用于指示所述频谱范围；
收发单元，用于向所述网络设备发送所述指示信息。
第十方面，提供了一种终端设备，包括：
处理器，所述处理器用于：
通过小区搜索获取第一频点；
在所述第一频点对应的多个频带中，确定所述终端设备支持的第二频带；
根据所述第二频带生成指示信息，所述指示信息用于网络设备确定所述终端设备可调度的频谱范围，或者所述指示信息用于指示所述频谱范围；
收发器，用于向所述网络设备发送所述指示信息。
第十一方面，提供了一种网络设备，包括：
收发单元，用于接收所述终端设备发送的指示信息，所述指示信息用于网络设备确定所述终端设备可调度的频谱范围，或者所述指示信息用于指示所述频谱范围；
处理单元，用于根据所述指示信息，确定所述频谱范围。
第十二方面，提供了一种网络设备，包括：
收发器，用于接收所述终端设备发送的指示信息，所述指示信息用于网络设备确定所述终端设备可调度的频谱范围，或者所述指示信息用于指示所述频谱范围；
处理器，用于根据所述指示信息，确定所述频谱范围。
第十三方面，提供了一种计算机可读介质，用于存储计算机程序，该计算机程序包括用于执行上述第一方面至第四方面中任一方面的方法实施例的指令。
第十四方面，提供了一种计算机芯片，包括：输入接口、输出接口、至少一个处理器、存储器，所述处理器用于执行所述存储器中的代码，当所述 代码被执行时，所述处理器可以实现上述第一方面至第四方面中的方法中由网络设备执行的各个过程。
第十五方面，提供了一种计算机芯片，包括：输入接口、输出接口、至少一个处理器、存储器，所述处理器用于执行所述存储器中的代码，当所述代码被执行时，所述处理器可以实现上述的第一方面至第四方面中由终端设备执行的各个过程。
第十六方面，提供了一种通信系统，包括前述所述的网络设备和终端设备。
附图说明
图1是本发明应用场景的示例。
图2是本发明实施例的确定随机接入的方法的示意性流程图。
图3是本发明实施例的上报频谱的方法的示意性流程图
图4是本发明实施例的终端设备的示意性框图。
图5是本发明实施例的另一终端设备的示意性框图。
图6是本发明实施例的网络设备的示意性框图。
图7是本发明实施例的另一网络设备的示意性框图。
具体实施方式
图1是本发明实施例的应用场景的示例。
如图1所示，终端设备可以具有一个下行载波和两个上行载波(如图1所示，第一上行载波和第二上行载波)。具体的，该第一上行载波和下行载波可以是NR高频带上的载波，该第二上行载波可以是LTE低频带上的载波。应理解，图1所示的终端设备具有两个上行载波仅为示例性描述，本发明实施例不作具体限定。例如，该终端设备也可以支持三个上行载波等等。
应理解，引入第二上行载波的动机是为了提高NR高频带的上行覆盖。
具体地，由于终端设备上行功率受限，而且NR的频谱(频率高，传播损失高)的频率又较高，所以NR的上行覆盖会受限，为了提高上行覆盖，本发明实施例中，提出了一种传输数据的方法。通过利用LTE频谱(相对频率较低)作为辅助上行载波，能够提高上行覆盖效果。
例如，第一上行载波和第二上行载波组合可以类似于LTE中的载波聚合 (CA)，只是没有配对的下行。即，从频带(band)组合的角度看，第二上行载波是个只有上行没有配对下行的小区，但是它的上行受控于某个下行载波，也就是当配置了第二上行载波，第二上行载波就是一个没有下行的辅助服务小区(SCell)，对于第二上行载波的控制依赖于主服务小区(PCell)。
应理解，本发明实施例可以适用于任何包括多个上行的通信系统。例如，该第一通信系统和该第二通信系统可以是各种通信系统，例如：全球移动通讯(Global System of Mobile communication，GSM)系统、码分多址(Code Division Multiple Access，CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)系统、通用分组无线业务(General Packet Radio Service，GPRS)、长期演进(Long Term Evolution，LTE)系统、LTE时分双工(Time Division Duplex，TDD)、通用移动通信系统(Universal Mobile Telecommunication System，UMTS)等。
此外，本发明结合网络设备(该第一网络设备至第四网络设备)和终端设备描述了各个实施例。
其中，网络设备可以指网络侧的任一种用来发送或接收信号的实体。例如，可以是机器类通信(MTC)的用户设备、GSM或CDMA中的基站(Base Transceiver Station，BTS)、WCDMA中的基站(NodeB)、LTE中的演进型基站(Evolutional Node B，eNB或eNodeB)、5G网络中的基站设备等。
终端设备可以是任意终端设备。具体地，终端设备可以经无线接入网(Radio Access Network，RAN)与一个或多个核心网(Core Network)进行通信，也可称为接入终端、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。例如，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、可穿戴设备以及5G网络中的终端设备等。
结合随机接入过程可以发现：
由于SUL的配置信息里面没有关于带宽的配置信息，同样，在正常的NR小区里面，UE只是从小区搜索中获取到小区的频点信息，并没有关于小区下行带宽的信息。
而且，目前的频带配置，可能出现某两个频带之间的频率范围有重叠，即，一个频点对应多个频带的情况，而终端设备可能只支持该多个频带中的其中一个。例如，终端设备不支持该NR小区的频点所在的频带，而是支持该频带所在的另一个频带。也就是说，网络设备并不知道终端设备支持的频谱范围，由此，如果网络设备调度终端设备时超过该终端设备支持的频率范围，就会导致数据收发失败。
因此，本发明实施例中，提出了一种随机接入的方法和一种上报频谱的方法。使得网络设备能够知道该终端设备支持的频带或者频谱范围，进而提高网络设备为终端设备分配资源的准确度。
下面结合图2对本发明实施例的随机接入进行说明。
210，终端设备获取第一频点和第一频带。
220，终端设备向网路设备发起随机接入过程。
具体而言，终端设备通过小区搜索获取第一频点；该终端通过系统广播消息获取网络设备支持的第一频带；该终端设备在该第一频点对应的多个频带中，确定该终端设备支持的第二频带；该终端设备确定该第一频带和该第二频带为相同的频带时，发起该随机接入过程。相应地，网络设备通过系统广播的方式向终端设备发送该网络设备支持的第一频带；并响应该终端设备发起的随机接入过程。
更具体地，针对终端设备来说，如果终端设备支持该第一频带，则该终端设备正常发起随机接入过程。
例如，网络设备通过系统广播的方式向终端设备发送该网络设备支持的频带1，如果终端设备支持该频带1，则终端设备正常发起随机接入过程，这种情况下，网络设备在该频带1上调度该终端设备，并不会超过该终端设备支持的频率范围。
但是，如果该终端设备不支持该第一频带，如果终端设备不向网络设备说明情况，网络设备很有可能在该第一频带上调度终端设备，导致网络设备调度终端设备时超过该终端设备支持的频率范围，进而导致数据收发失败。
本发明实施例中，为了解决上述问题，终端设备向网络设备通过指示信息向网络设备指示该终端设备可调度的频谱范围或者直接指示该频谱范围。
具体地，该第一频带和该第二频带为不同的频带时，该终端设备生成指示信息，该指示信息用于该网络设备确定该终端设备可调度的频谱范围，或 者该指示信息用于指示该频谱范围；该终端设备向该网络设备发送该指示信息。对于网络设备来说，该网络设备接收该终端设备发送的指示信息，并根据该频谱范围响应该随机接入过程。
本发明实施例中，该第一频带和该第二频带为不同的频带时，终端设备通过上报指示信息使得网络设备能够准确确定出该终端设备可调度的频谱范围，进而提高该网络设备调度该终端设备的准确度。
应理解，本发明实施例中的指示信息旨在使得网络设备知道终端设备支持的频谱范围，本发明实施例对该指示信息的具体形式不做限定。
例如，该指示信息可以更具体的用于指示该终端设备支持的频带为该第二频带。具体地，该终端设备可以在随机接入过程中的消息(MSG3)中指示网络设备该终端设备在该小区内可调度的带宽范围。
又例如，该指示信息可以直接用于指示该频谱范围，进一步地，该频谱范围为该第一频带和该第二频带的重叠频谱形成的范围。
下面对本发明实施例中终端设备向网络设备发送该指示信息的实现方式进行说明：
在一个实施例中，终端设备可以隐式地指示该网络设备。
例如，该终端设备生成指示信息之前，该终端设备接收该网络设备发送第一映射关系信息，该第一映射关系信息包括：该多个频带与多个资源的对应关系，该多个资源中的每个资源包括前导码和/或物理随机接入控制信道PRACH资源；由此，终端设备支持的频带为第二频带时，该终端设备可以根据该第二频带和该第一映射关系信息，确定该第二频带对应的第一资源；由此，该终端设备通过该第一资源发起随机接入过程，并通过该第一资源指示该终端设备支持的频带为该第二频带。
针对网络设备来说，该网络设备确定该终端设备发起随机接入过程时使用的第一资源；该网络设备根据该第一映射关系信息，将该第一资源对应的第二频带确定为该终端设备支持的频带。
具体地，该终端设备可以在随机接入过程中的消息(MSG3)中指示网络设备该终端设备支持的频带。
又例如，该终端设备接收该网络设备发送第二映射关系信息，该第二映射关系信息包括：多个索引和该多个频带的对应关系，该多个索引互不相同；由此，终端设备支持的频带为第二频带时，该终端设备可以根据该第二频带 和该第二映射关系信息，确定该第二频带对应的第一索引；由此，该终端设备向该网络设备发送该第一索引，该第一索引用于指示该终端设备支持的频道为该第二频带。
针对网络设备来说，该网络设备接收该终端设备发送的第一索引；并根据该第二映射关系信息和该第一索引，将该第一索引对应的第二频带确定为该终端设备支持的频带。
具体地，该终端设备可以在随机接入过程中的消息(MSG3)中指示网络设备该终端设备支持的频带。
在另一个实施例中，该终端设备可以显示地指示该网络设备。
例如，该终端设备向该网络发送媒体接入控制RRC消息，该RRC消息包括该指示信息。
应理解，本发明实施例中，上述终端设备向网络发送指示信息，该指示信息的形式为示例性描述，本发明实施例不限于此。
例如，该指示信息也可以用于指示该终端设备不支持的频带。
举例来说，本发明实施例中第一频点对应频带1和频带2，该网络设备支持的频带为频带1，该终端设备支持的频带为频带2。则，该终端设备可以指示该终端设备支持的频带为频带1，该终端设备也可以指示该终端设备不支持的频带为频带2。
网络设备在接收到该指示信息后，可根据该第一频点对应的频带1和频带2，以及该指示信息，确定出该终端设备可调度的频谱范围。
图3是本发明实施例的上报频谱的方法的示意性流程图。
如图3所示，该方法包括：
310，终端设备获取第一频点
320，该终端设备在该第一频点对应的多个频带中，确定该终端设备支持的第二频带
330，该终端设备根据该第二频带生成指示信息
340，该终端设备向该网络设备发送指示信息
具体而言，该终端设备通过小区搜索获取第一频点；该终端设备在该第一频点对应的多个频带中，确定该终端设备支持的第二频带；该终端设备根据该第二频带生成指示信息，该指示信息用于网络设备确定该终端设备可调度的频谱范围，或者该指示信息用于指示该频谱范围；该终端设备向该网络 设备发送该指示信息。换句话说，网络设备接收该终端设备发送的指示信息，并根据该指示信息，确定该频谱范围。
进一步地，该指示信息更具体的用于指示该终端设备支持的频带为该第二频带。
可选地，该终端设备根据该指示信息向该网络设备发起随机接入过程。该网络设备根据该频谱范围，响应该终端设备发起的随机接入过程。
图4是本发明实施例的终端设备的示意性框图。
本发明实施例中提供了一种终端设备，具体地，如图4所示，该终端设备包括：
处理单元410，用于通过小区搜索获取第一频点；
收发单元420，用于通过系统广播消息获取网络设备支持的第一频带；
该处理单元410还用于：
在该第一频点对应的多个频带中，确定该终端设备支持的第二频带；确定该第一频带和该第二频带为相同的频带时，发起该随机接入过程。
可选地，该处理单元410还用于：
该第一频带和该第二频带为不同的频带时，生成指示信息，该指示信息用于该网络设备确定该终端设备可调度的频谱范围，或者该指示信息用于指示该频谱范围；该收发单元420还用于：
向该网络设备发送该指示信息。
可选地，该指示信息更具体的用于指示该终端设备支持的频带为该第二频带。
可选地，该频谱范围为该第一频带和该第二频带的重叠频谱形成的范围。
可选地，该收发单元420还用于：
该处理单元410生成指示信息之前，接收该网络设备发送第一映射关系信息，该第一映射关系信息包括：该多个频带与多个资源的对应关系，该多个资源中的每个资源包括前导码和/或物理随机接入控制信道PRACH资源；
该处理单元410还用于：
根据该第二频带和该第一映射关系信息，确定该第二频带对应的第一资源；该终端设备通过该第一资源发起随机接入过程，并通过该第一资源指示该终端设备支持的频带为该第二频带。
可选地，该收发单元420还用于：
该处理单元410生成指示信息之前，接收该网络设备发送第二映射关系信息，该第二映射关系信息包括：多个索引和该多个频带的对应关系，该多个索引互不相同；该处理单元410还用于：根据该第二频带和该第二映射关系信息，确定该第二频带对应的第一索引；该收发单元420还用于：向该网络设备发送该第一索引，该第一索引用于指示该终端设备支持的频道为该第二频带。
可选地，该收发单元420具体用于：
向该网络发送媒体接入控制RRC消息，该RRC消息包括该指示信息。
本发明实施例中提供了另一种终端设备，具体地，如图4所示，该终端设备包括：
处理单元410，该处理单元410用于：
通过小区搜索获取第一频点；在该第一频点对应的多个频带中，确定该终端设备支持的第二频带；根据该第二频带生成指示信息，该指示信息用于网络设备确定该终端设备可调度的频谱范围，或者该指示信息用于指示该频谱范围；
收发单元420，用于向该网络设备发送该指示信息。
可选地，该指示信息更具体的用于指示该终端设备支持的频带为该第二频带。
可选地，该处理单元410还用于：
根据该指示信息向该网络设备发起随机接入过程。
应注意，处理单元410可以由处理器实现，收发单元420可由收发器实现。如图5所示，终端设备500可以包括处理器510、收发器520和存储器530。其中，存储器530可以用于存储指示信息，还可以用于存储处理器510执行的代码、指令等。终端设备500中的各个组件通过总线系统相连，其中，总线系统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。
图5所示的终端设备500能够实现前述图2和图3所示的方法实施例中由终端设备所实现的各个过程，为避免重复，这里不再赘述。
图6是本发明实施例的网络设备的示意性框图。
本发明实施例中提供了一种网络设备，具体地，如图6所示，该网络设备包括：
收发单元610，用于通过系统广播的方式向终端设备发送该网络设备支持的第一频带；
处理单元620，用于响应该终端设备发起的随机接入过程。
可选地，该收发单元610还用于：
接收该终端设备发送的指示信息，该指示信息用于网络设备确定该终端设备可调度的频谱范围，或者该指示信息用于指示该频谱范围；其中，该处理单元620具体用于：
根据该频谱范围响应该随机接入过程。
可选地，该指示信息更具体的用于指示该终端设备支持的频带为该第二频带。
可选地，该频谱范围为该第一频带和该第二频带的重叠频谱形成的范围。
可选地，该收发单元610具体用于：
接收该终端设备发送的指示信息之前，向该终端设备发送第一映射关系信息，该第一映射关系信息包括：该多个频带与多个资源的对应关系，该多个资源中的每个资源包括前导码和/或物理随机接入控制信道PRACH资源；确定该终端设备发起随机接入过程时使用的第一资源；根据该第一映射关系信息，将该第一资源对应的第二频带确定为该终端设备支持的频带。
可选地，该收发单元610具体用于：
接收该终端设备发送的指示信息之前，向该终端设备发送第二映射关系信息，该第二映射关系信息包括：多个索引和该多个频带的对应关系，该多个索引互不相同；接收该终端设备发送的第一索引；根据该第二映射关系信息和该第一索引，将该第一索引对应的第二频带确定为该终端设备支持的频带。
可选地，该收发单元610更具体用于：
接收该终端设备发送的媒体接入控制RRC消息，该RRC消息包括该指示信息。
本发明实施例中提供了另一种网络设备，具体地，如图4所示，该网络设备包括：
收发单元610，用于接收该终端设备发送的指示信息，该指示信息用于 网络设备确定该终端设备可调度的频谱范围，或者该指示信息用于指示该频谱范围；
处理单元620，用于根据该指示信息，确定该频谱范围。
可选地，该指示信息更具体的用于指示该终端设备支持的频带为该第二频带。
可选地，该处理单元620还用于：
根据该频谱范围，响应该终端设备发起的随机接入过程。
应注意，收发单元610可由收发器实现，处理单元620可以由处理器实现。如图7所示，网络设备700可以包括处理器710、收发器720和存储器730。其中，存储器730可以用于存储指示信息，还可以用于存储处理器710执行的代码、指令等。网络设备700中的各个组件通过总线系统相连，其中，总线系统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。
图7所示的网络设备700能够实现前述图2和图3所示的方法实施例中由网络设备所实现的各个过程，为避免重复，这里不再赘述。
应理解，本发明实施例中的方法实施例可以应用于处理器中，或者由处理器实现。
在实现过程中，本发明实施例中的方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。更具体地，结合本发明实施例公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码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、寄存器等本领域的成熟的存储介质中。该存储介质位于存储器，处理器读取存储器中的信息，结合其硬件完成上述方法的步骤。
其中，处理器可能是一种集成电路芯片，具有信号的处理能力，可以实现或者执行本发明实施例中的公开的各方法、步骤及逻辑框图。例如，上述的处理器可以是通用处理器、数字信号处理器(digital signal processor，DSP)、专用集成电路(application specific integrated circuit，ASIC)、现成可编程门阵列(field programmable gate array，FPGA)或者其他可编程逻辑器件、晶体管逻辑器件、分立硬件组件等等。此外，通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
此外，本发明实施例中，存储器可以是易失性存储器或非易失性存储器， 或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(read-only memory，ROM)、可编程只读存储器(programmable ROM，PROM)、可擦除可编程只读存储器(erasable PROM，EPROM)、电可擦除可编程只读存储器(electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory，RAM)，其用作外部高速缓存。应理解，上述存储器为示例性但不是限制性说明，例如，本发明实施例中的存储器还可以是静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(dynamic RAM，DRAM)、同步动态随机存取存储器(synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(synch link DRAM，SLDRAM)以及直接内存总线随机存取存储器(Direct Rambus RAM，DR RAM)等等。也就是说，本文描述的系统和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
最后，需要注意的是，在本发明实施例和所附权利要求书中使用的术语是仅仅出于描述特定实施例的目的，而非旨在限制本发明实施例。
例如，在本发明实施例和所附权利要求书中所使用的单数形式的“一种”、“所述”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。
又例如，取决于语境，如在此所使用的词语“在……时”可以被解释成为“如果”或“若”或“当……时”或“响应于确定”或“响应于检测”。类似地，取决于语境，短语“如果确定”或“如果检测(陈述的条件或事件)”可以被解释成为“当确定时”或“响应于确定”或“当检测(陈述的条件或事件)时”或“响应于检测(陈述的条件或事件)”。
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发明实施例的范围。
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。
在本申请提供的几个实施例中，应该理解到，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发明实施例的目的。
另外，在本发明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。
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，本发明实施例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该技术方案的部分可以以软件产品的形式体现出来，该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)执行本发明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、随机存取存储器、磁碟或者光盘等各种可以存储程序代码的介质。
以上内容，仅为本发明实施例的具体实施方式，但本发明实施例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发明实施例揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明实施例的保护范围之内。因此，本发明实施例的保护范围应以权利要求的保护范围为准。

Claims (40)

  1. 一种随机接入的方法，其特征在于，包括：
    终端设备通过小区搜索获取第一频点；
    所述终端通过系统广播消息获取网络设备支持的第一频带；
    所述终端设备在所述第一频点对应的多个频带中，确定所述终端设备支持的第二频带；
    所述终端设备确定所述第一频带和所述第二频带为相同的频带时，发起所述随机接入过程。
  2. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    所述第一频带和所述第二频带为不同的频带时，所述终端设备生成指示信息，所述指示信息用于所述网络设备确定所述终端设备可调度的频谱范围，或者所述指示信息用于指示所述频谱范围；
    所述终端设备向所述网络设备发送所述指示信息。
  3. 根据权利要求2所述的方法，其特征在于，所述指示信息更具体的用于指示所述终端设备支持的频带为所述第二频带。
  4. 根据权利要求2所述的方法，其特征在于，所述频谱范围为所述第一频带和所述第二频带的重叠频谱形成的范围。
  5. 根据权利要求2所述的方法，其特征在于，所述终端设备生成指示信息之前，所述方法还包括：
    所述终端设备接收所述网络设备发送第一映射关系信息，所述第一映射关系信息包括：所述多个频带与多个资源的对应关系，所述多个资源中的每个资源包括前导码和/或物理随机接入控制信道PRACH资源；
    所述终端设备根据所述第二频带和所述第一映射关系信息，确定所述第二频带对应的第一资源；
    其中，所述终端设备向所述网络设备发送所述指示信息，包括：
    所述终端设备通过所述第一资源发起随机接入过程，并通过所述第一资源指示所述终端设备支持的频带为所述第二频带。
  6. 根据权利要求2所述的方法，其特征在于，所述终端设备生成指示信息之前，所述方法还包括：
    所述终端设备接收所述网络设备发送第二映射关系信息，所述第二映射 关系信息包括：多个索引和所述多个频带的对应关系，所述多个索引互不相同；
    所述终端设备根据所述第二频带和所述第二映射关系信息，确定所述第二频带对应的第一索引；
    其中，所述终端设备向所述网络设备发送所述指示信息，包括：
    所述终端设备向所述网络设备发送所述第一索引，所述第一索引用于指示所述终端设备支持的频道为所述第二频带。
  7. 根据权利要求2至6中任一项所述的方法，其特征在于，所述终端设备向所述网络设备发送所述指示信息，包括：
    所述终端设备向所述网络发送媒体接入控制RRC消息，所述RRC消息包括所述指示信息。
  8. 一种随机接入的方法，其特征在于，包括：
    网络设备通过系统广播的方式向终端设备发送所述网络设备支持的第一频带；
    所述网络设备响应所述终端设备发起的随机接入过程。
  9. 根据权利要求8所述的方法，其特征在于，所述方法还包括：
    所述网络设备接收所述终端设备发送的指示信息，所述指示信息用于网络设备确定所述终端设备可调度的频谱范围，或者所述指示信息用于指示所述频谱范围；
    其中，所述网络设备响应所述终端设备发起的随机接入过程，包括：
    所述网络设备根据所述频谱范围响应所述随机接入过程。
  10. 根据权利要求9所述的方法，其特征在于，所述指示信息更具体的用于指示所述终端设备支持的频带为所述第二频带。
  11. 根据权利要求9所述的方法，其特征在于，所述频谱范围为所述第一频带和所述第二频带的重叠频谱形成的范围。
  12. 根据权利要求9所述的方法，其特征在于，所述网络设备接收所述终端设备发送的指示信息之前，所述方法还包括：
    所述网络设备向所述终端设备发送第一映射关系信息，所述第一映射关系信息包括：所述多个频带与多个资源的对应关系，所述多个资源中的每个资源包括前导码和/或物理随机接入控制信道PRACH资源；
    其中，所述网络设备接收所述终端设备发送的指示信息，包括：
    所述网络设备确定所述终端设备发起随机接入过程时使用的第一资源；
    所述网络设备根据所述第一映射关系信息，将所述第一资源对应的第二频带确定为所述终端设备支持的频带。
  13. 根据权利要求9所述的方法，其特征在于，所述网络设备接收所述终端设备发送的指示信息之前，所述方法还包括：
    所述网络设备向所述终端设备发送第二映射关系信息，所述第二映射关系信息包括：多个索引和所述多个频带的对应关系，所述多个索引互不相同；
    其中，所述网络设备接收所述终端设备发送的指示信息，包括：
    所述网络设备接收所述终端设备发送的第一索引；
    所述网络设备根据所述第二映射关系信息和所述第一索引，将所述第一索引对应的第二频带确定为所述终端设备支持的频带。
  14. 根据权利要求9至13中任一项所述的方法，其特征在于，所述网络设备接收所述终端设备发送的指示信息，包括：
    所述网络设备接收所述终端设备发送的媒体接入控制RRC消息，所述RRC消息包括所述指示信息。
  15. 一种上报频谱的方法，其特征在于，包括：
    所述终端设备通过小区搜索获取第一频点；
    所述终端设备在所述第一频点对应的多个频带中，确定所述终端设备支持的第二频带；
    所述终端设备根据所述第二频带生成指示信息，所述指示信息用于网络设备确定所述终端设备可调度的频谱范围，或者所述指示信息用于指示所述频谱范围；
    所述终端设备向所述网络设备发送所述指示信息。
  16. 根据权利要求15所述的方法，其特征在于，所述指示信息更具体的用于指示所述终端设备支持的频带为所述第二频带。
  17. 根据权利要求15或16所述的方法，其特征在于，所述方法还包括：
    所述终端设备根据所述指示信息向所述网络设备发起随机接入过程。
  18. 一种上报频谱的方法，其特征在于，包括：
    网络设备接收所述终端设备发送的指示信息，所述指示信息用于网络设备确定所述终端设备可调度的频谱范围，或者所述指示信息用于指示所述频谱范围；
    所述网络设备根据所述指示信息，确定所述频谱范围。
  19. 根据权利要求18所述的方法，其特征在于，所述指示信息更具体的用于指示所述终端设备支持的频带为所述第二频带。
  20. 根据权利要求18或19所述的方法，其特征在于，所述方法还包括：
    所述网络设备根据所述频谱范围，响应所述终端设备发起的随机接入过程。
  21. 一种终端设备，其特征在于，包括：
    处理单元，用于通过小区搜索获取第一频点；
    收发单元，用于通过系统广播消息获取网络设备支持的第一频带；
    所述处理单元还用于：
    在所述第一频点对应的多个频带中，确定所述终端设备支持的第二频带；确定所述第一频带和所述第二频带为相同的频带时，发起所述随机接入过程。
  22. 根据权利要求21所述的终端设备，其特征在于，所述处理单元还用于：
    所述第一频带和所述第二频带为不同的频带时，生成指示信息，所述指示信息用于所述网络设备确定所述终端设备可调度的频谱范围，或者所述指示信息用于指示所述频谱范围；
    所述收发单元还用于：
    向所述网络设备发送所述指示信息。
  23. 根据权利要求22所述的终端设备，其特征在于，所述指示信息更具体的用于指示所述终端设备支持的频带为所述第二频带。
  24. 根据权利要求22所述的终端设备，其特征在于，所述频谱范围为所述第一频带和所述第二频带的重叠频谱形成的范围。
  25. 根据权利要求22所述的终端设备，其特征在于，所述收发单元还用于：
    所述处理单元生成指示信息之前，接收所述网络设备发送第一映射关系信息，所述第一映射关系信息包括：所述多个频带与多个资源的对应关系，所述多个资源中的每个资源包括前导码和/或物理随机接入控制信道PRACH资源；
    所述处理单元还用于：
    根据所述第二频带和所述第一映射关系信息，确定所述第二频带对应的第一资源；
    通过所述第一资源发起随机接入过程，并通过所述第一资源指示所述终端设备支持的频带为所述第二频带。
  26. 根据权利要求22所述的终端设备，其特征在于，所述收发单元还用于：
    所述处理单元生成指示信息之前，接收所述网络设备发送第二映射关系信息，所述第二映射关系信息包括：多个索引和所述多个频带的对应关系，所述多个索引互不相同；
    所述处理单元还用于：根据所述第二频带和所述第二映射关系信息，确定所述第二频带对应的第一索引；
    所述收发单元还用于：向所述网络设备发送所述第一索引，所述第一索引用于指示所述终端设备支持的频道为所述第二频带。
  27. 根据权利要求22至26中任一项所述的终端设备，其特征在于，所述收发单元具体用于：
    向所述网络发送媒体接入控制RRC消息，所述RRC消息包括所述指示信息。
  28. 一种网络设备，其特征在于，包括：
    收发单元，用于通过系统广播的方式向终端设备发送所述网络设备支持的第一频带；
    处理单元，用于响应所述终端设备发起的随机接入过程。
  29. 根据权利要求28所述的网络设备，其特征在于，所述收发单元还用于：
    接收所述终端设备发送的指示信息，所述指示信息用于网络设备确定所述终端设备可调度的频谱范围，或者所述指示信息用于指示所述频谱范围；
    其中，所述处理单元具体用于：
    根据所述频谱范围响应所述随机接入过程。
  30. 根据权利要求29所述的网络设备，其特征在于，所述指示信息更具体的用于指示所述终端设备支持的频带为所述第二频带。
  31. 根据权利要求29所述的网络设备，其特征在于，所述频谱范围为所述第一频带和所述第二频带的重叠频谱形成的范围。
  32. 根据权利要求29所述的网络设备，其特征在于，所述收发单元具体用于：
    接收所述终端设备发送的指示信息之前，向所述终端设备发送第一映射关系信息，所述第一映射关系信息包括：所述多个频带与多个资源的对应关系，所述多个资源中的每个资源包括前导码和/或物理随机接入控制信道PRACH资源；
    确定所述终端设备发起随机接入过程时使用的第一资源；
    根据所述第一映射关系信息，将所述第一资源对应的第二频带确定为所述终端设备支持的频带。
  33. 根据权利要求29所述的网络设备，其特征在于，所述收发单元具体用于：
    接收所述终端设备发送的指示信息之前，向所述终端设备发送第二映射关系信息，所述第二映射关系信息包括：多个索引和所述多个频带的对应关系，所述多个索引互不相同；
    接收所述终端设备发送的第一索引；
    根据所述第二映射关系信息和所述第一索引，将所述第一索引对应的第二频带确定为所述终端设备支持的频带。
  34. 根据权利要求29至33中任一项所述的网络设备，其特征在于，所述收发单元更具体用于：
    接收所述终端设备发送的媒体接入控制RRC消息，所述RRC消息包括所述指示信息。
  35. 一种终端设备，其特征在于，包括：
    处理单元，所述处理单元用于：
    通过小区搜索获取第一频点；
    在所述第一频点对应的多个频带中，确定所述终端设备支持的第二频带；
    根据所述第二频带生成指示信息，所述指示信息用于网络设备确定所述终端设备可调度的频谱范围，或者所述指示信息用于指示所述频谱范围；
    收发单元，用于向所述网络设备发送所述指示信息。
  36. 根据权利要求35所述的终端设备，其特征在于，所述指示信息更具体的用于指示所述终端设备支持的频带为所述第二频带。
  37. 根据权利要求35或36所述的终端设备，其特征在于，所述处理单元还用于：
    根据所述指示信息向所述网络设备发起随机接入过程。
  38. 一种网络设备，其特征在于，包括：
    收发单元，用于接收所述终端设备发送的指示信息，所述指示信息用于网络设备确定所述终端设备可调度的频谱范围，或者所述指示信息用于指示所述频谱范围；
    处理单元，用于根据所述指示信息，确定所述频谱范围。
  39. 根据权利要求38所述的网络设备，其特征在于，所述指示信息更具体的用于指示所述终端设备支持的频带为所述第二频带。
  40. 根据权利要求38或39所述的网络设备，其特征在于，所述处理单元还用于：
    根据所述频谱范围，响应所述终端设备发起的随机接入过程。
PCT/CN2017/112941 2017-11-24 2017-11-24 随机接入的方法、上报频谱的方法、终端设备和网络设备 WO2019100340A1 (zh)

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