CN114342496A

CN114342496A - Uplink access method, electronic device and storage medium

Info

Publication number: CN114342496A
Application number: CN201980099810.8A
Authority: CN
Inventors: 王淑坤; 石聪; 付喆
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-11-20
Filing date: 2019-11-20
Publication date: 2022-04-12
Also published as: WO2021097698A1

Abstract

The application discloses an uplink access method, which comprises the following steps: the terminal equipment determines a target carrier used for initial access or data transmission in the normal uplink carrier and at least one first supplementary uplink carrier according to the first information; the first information includes at least one of: the selection factor information of the normal uplink carrier and the selection factor information of the first supplementary uplink carrier, a Reference Signal Received Power (RSRP) threshold corresponding to the first supplementary uplink carrier, an RSRP threshold range corresponding to the first supplementary uplink carrier, a correspondence between the type of the terminal device and the normal uplink carrier, a correspondence between the type of the terminal device and the first supplementary uplink carrier, a correspondence between the service type and the normal uplink carrier, a correspondence between the service type and the first supplementary uplink carrier, and first indication information sent by a network device. The application also discloses another uplink access method, electronic equipment and a storage medium.

Description

Uplink access method, electronic device and storage medium

Technical Field

The present application relates to the field of wireless communications technologies, and in particular, to an uplink access method, an electronic device, and a storage medium.

Background

As the types and the number of access terminal devices (UE) accessing the network device increase, selection conflicts between initial access resources and transmission resources may be caused, and the success rate of random access or data transmission may be reduced.

Disclosure of Invention

The embodiment of the application provides an uplink access method, an electronic device and a storage medium, which can effectively reduce the selection conflict of initial access resources and/or transmission resources and improve the success rate of random access or data transmission.

In a first aspect, an embodiment of the present application provides an uplink access method, including: the terminal equipment determines a target carrier used for initial access or data transmission in the normal uplink carrier and at least one first supplementary uplink carrier according to the first information; the first information includes at least one of:

the selection factor information of the normal uplink carrier and the selection factor information of the first supplementary uplink carrier, a Reference Signal Receiving Power (RSRP) threshold corresponding to the first supplementary uplink carrier, an RSRP threshold range corresponding to the first supplementary uplink carrier, a correspondence between a type of the terminal device and a carrier, a correspondence between a service type and a carrier, and first indication information sent by the network device.

In a second aspect, an embodiment of the present application provides an uplink access method, including: the network equipment sends information or first indication information of at least one second supplementary uplink carrier to the terminal equipment; wherein the content of the first and second substances,

the information of the at least one second uplink supplemental carrier or the first indication information is used for the terminal device to determine a target carrier for initial access or data transmission.

In a third aspect, an embodiment of the present application provides a terminal device, where the terminal device includes: a processing unit configured to determine a target carrier for initial access or data transmission in the normal uplink carrier and the at least one first supplementary uplink carrier according to the first information; the first information includes at least one of:

the selection factor information of the normal uplink carrier and the selection factor information of the first supplementary uplink carrier, the RSRP threshold corresponding to the first supplementary uplink carrier, the RSRP threshold range corresponding to the first supplementary uplink carrier, the correspondence between the type of the terminal device and the carrier, the correspondence between the service type and the carrier, and the first indication information sent by the network device.

In a fourth aspect, an embodiment of the present application provides a network device, where the network device includes: a sending unit configured to send information of at least one second supplementary uplink carrier or first indication information to the terminal device; wherein the content of the first and second substances,

In a fifth aspect, an embodiment of the present application provides a terminal device, including a processor and a memory, where the memory is used for storing a computer program that can be executed on the processor, and the processor is configured to execute, when executing the computer program, the steps of the uplink access method executed by the terminal device.

In a sixth aspect, an embodiment of the present application provides a network device, including a processor and a memory, where the memory is used for storing a computer program that can be executed on the processor, and the processor is configured to execute the steps of the uplink access method executed by the network device when the processor executes the computer program.

In a seventh aspect, an embodiment of the present application provides a storage medium, where an executable program is stored, and when the executable program is executed by a processor, the uplink access method executed by the terminal device is implemented.

In an eighth aspect, an embodiment of the present application provides a storage medium, where an executable program is stored, and when the executable program is executed by a processor, the uplink access method executed by the network device is implemented.

In a ninth aspect, an embodiment of the present application provides a chip, including: and the processor is used for calling and running the computer program from the memory so that the terminal equipment provided with the chip executes the uplink access method.

In a tenth aspect, an embodiment of the present application provides a chip, including: and the processor is used for calling and running the computer program from the memory so that the network equipment provided with the chip executes the uplink access method.

In an eleventh aspect, an embodiment of the present application provides a computer program product, which includes computer program instructions, and the computer program instructions enable a computer to execute the uplink access method executed by the terminal device.

In a twelfth aspect, an embodiment of the present application provides a computer program product, which includes computer program instructions, where the computer program instructions enable a computer to execute the uplink access method executed by the network device.

In a thirteenth aspect, an embodiment of the present application provides a computer program, where the computer program enables a computer to execute an uplink access method executed by the terminal device.

In a fourteenth aspect, an embodiment of the present application provides a computer program, where the computer program enables a computer to execute the uplink access method executed by the network device.

The uplink access method provided by the embodiment of the application comprises the following steps: the terminal equipment determines a target carrier used for initial access or data transmission in the normal uplink carrier and at least one first supplementary uplink carrier according to the first information; the first information includes at least one of: the selection factor information of the normal uplink carrier and the selection factor information of the first supplementary uplink carrier, the RSRP threshold corresponding to the first supplementary uplink carrier, the RSRP threshold range corresponding to the first supplementary uplink carrier, the correspondence between the type of the terminal device and the carrier, the correspondence between the service type and the carrier, and the first indication information sent by the network device. Therefore, by introducing a plurality of SULs, the uplink transmission capacity of the communication system can be increased, the probability that a plurality of terminal devices select the same SUL carrier is reduced, and the success rate of random access or data transmission of the terminal devices is improved.

Drawings

Fig. 1 is a schematic structural diagram of a communication system according to an embodiment of the present application;

fig. 2 is a schematic view of an optional processing flow of an uplink access method applied to a terminal device in the embodiment of the present application;

fig. 3 is a schematic view of an optional processing flow of an uplink access method applied to a network device according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a network device according to an embodiment of the present application;

fig. 6 is a schematic diagram of a hardware component structure of an electronic device according to an embodiment of the present application.

Detailed Description

So that the manner in which the features and elements of the present embodiments can be understood in detail, a more particular description of the embodiments, briefly summarized above, may be had by reference to embodiments, some of which are illustrated in the appended drawings.

Before describing the uplink access method provided in the embodiment of the present application in detail, first, related information of the uplink access method in the related art is briefly described.

With the pursuit of speed, latency, high-speed mobility, energy efficiency, and the diversity and complexity of services in future life, the 3GPP international standards organization began to develop 5G. The main application scenarios of 5G are: enhanced Mobile Ultra wide band (eMBB), Low Latency high reliability Communications (URLLC), and Massive Machine Type Communications (mMTC).

The eMBB still targets users to obtain multimedia content, services and data, and its demand is growing very rapidly. On the other hand, because the eMBB may be deployed in different scenarios, such as indoor, urban, rural, etc., and the difference between the capabilities and the requirements is relatively large, it cannot be said in a general way, and it is necessary to analyze in detail in combination with a specific deployment scenario. Typical applications of URLLC include: industrial automation, electric power automation, remote medical operation (surgery), traffic safety, and the like. Typical characteristics of mtc include: high connection density, small data volume, insensitive time delay service, low cost and long service life of the module, etc.

A New Radio (NR) system may also be deployed independently, and a New Radio Resource Control (RRC) state, that is, an RRC-Inactive (deactivated) state is defined for reducing air interface signaling, quickly recovering Radio connection, and quickly recovering data service. In an RRC-Idle state, mobility is cell reselection based on a terminal device, a paging process is initiated by a Core Network (CN), and a paging area is configured by the CN. The network equipment side has no terminal equipment context and no RRC connection. In an RRC-Inactive state, mobility is cell reselection based on a terminal device, a connection between CN-NRs exists, a context of the terminal device exists on a certain Network device, a paging process is triggered by a Radio Access Network (RAN), a paging area based on the RAN is managed by the RAN, and the Network device can know that a location of the terminal device is based on a paging area level of the RAN. In an RRC-Connected state, an RRC connection exists, a terminal device context exists between the network device and the terminal device, and the network device knows that the location of the terminal device is at a specific cell level; mobility is network device controlled mobility, and unicast data can be transmitted between a network device and a terminal device.

The NR-light device is introduced in R17, and may be composed of three scenes, including:

1. industrial Wireless Sensors (IWS), which has relatively low latency and reliability requirements compared to URLLC devices, also has lower cost and power consumption than URLLC devices and eMBB devices.

2. Video monitoring (Video monitoring) equipment is mainly used for Video monitoring of smart cities, industrial plants and the like and data collection and processing in the smart cities, so that city resources can be monitored and controlled more effectively, and more effective service is provided for city residents.

3. Wearable devices (Wearables), which may include at least smart watches, electronic health devices, and some medical monitoring devices, among others. A common feature of wearable devices is the small size of the device.

The common requirements of the three scenarios are as follows:

1. the equipment cost is low; by reducing the bandwidth and receiving antennas, the cost and complexity of the device is reduced.

2. The size of the device; with a smaller device size.

3. Coverage rate; coverage comparable to R15 or R16 is required; if the loss of coverage is caused by lowering the receiving antenna, or lowering the bandwidth, or lowering the power level, or lowering the complexity of the terminal equipment, the loss of coverage needs to be compensated.

The non-common requirements of the above three scenarios are:

1. industrial wireless sensors: the reliability requirement is 99.99%, and the end-to-end delay requirement is 100 ms. The Bit rate requirement is 2 Mbps; the equipment is still; battery life is several years; for safety-relevant sensors, the latency requirement is 5-10 ms.

2. The Bit rate requirement of the Video Surveillance is 2-4Mbps, the delay requirement is less than 500ms, the reliability requirement is 99% -99.9%, and for some high-end Video rate requirements are 2-4Mbps, the uplink traffic volume is large.

3. Wearsables rate requirements are 150Mbps/50 Mbps.

The bandwidth Part (BWP) is briefly described as follows:

the maximum channel bandwidth supported in NR systems can be up to 400MHZ wideband carrier (wideband carrier), and if the terminal device remains operating on the wideband carrier at all times, the power consumption of the terminal device is very large. Adjusting the Radio Frequency (RF) bandwidth of the terminal device according to the actual throughput of the terminal device can optimize the power consumption of the terminal device, and further introduce BWP.

A terminal device in a connected state can only have one active downstream BWP and one active upstream BWP at most at a time. The network device may configure at most 4 uplink BWPs and at most 4 downlink BWPs for the terminal device in the connection state, and for a Frequency Division Duplex (FDD) system, there is no corresponding (association) relationship shown between the uplink BWPs and the downlink BWPs. For example, the network device may configure 4 uplink BWPs (indexes are 0, 1, 2, 3) and 4 downlink BWPs (0, 1, 2, 3), respectively, for one connected terminal device, where the currently activated uplink BWP index may be 0 and the currently activated downlink BWP index may be 1; if the Downlink BWP is switched to another BWP through Downlink Control Information (DCI), for example, the currently activated Downlink BWP 1 is switched to the Downlink BWP 2, the uplink BWP may remain unchanged.

The terminal device in the idle state and the deactivated state obtains Information of a Master Information Block (MIB) and a System Information Block (SIB 1) of a resident Cell through a Cell Defining Synchronization Signal Block (CD-SSB). The SIB1 indicates the configuration information of the initial (initial) BWP for the terminal device to initially access, which includes an initial uplink BWP and an initial downlink BWP. In the uplink BWP configuration, a network device configures a random access resource (RACH-ConfigCommon) for a terminal device initially accessed, and there is a correspondence between the random access resource and an SSB. The network device controls the selection of the random access resource of the terminal device by configuring an RSRP Threshold (RSRP-Threshold SSB), when the random access process is triggered, the terminal device selects an SSB with an RSRP measurement value meeting the RSRP Threshold, then selects a corresponding random access resource to send a preamble (preamble) according to the corresponding relation between the random access resource and the SSB, namely, sends Msg1, and receives a random access response message sent by the network device on the selected SSB, namely, receives the Msg 2.

In order to improve the upstream coverage on the NR system high frequency band, a Supplemental Upstream (SUL) frequency is introduced. Since the uplink power of the terminal device is limited and the frequency of the spectrum of the NR system is high, the uplink coverage of the terminal device may be limited. In order to improve uplink coverage of the terminal device, an LTE spectrum (relatively low frequency) is used as an uplink spectrum, and uplink coverage can be improved.

In addition, two Uplink carriers and one downlink spectrum belong to the same cell, and at most one Physical Uplink Shared Channel (PUSCH) transmission exists at the same time. And the terminal equipment judges the selection of the terminal equipment according to the measurement threshold unless the network equipment explicitly indicates which uplink carrier is used by the terminal equipment. The threshold is broadcast within the system broadcast. The two uplink carriers can be dynamically switched through DCI indication. The terminal device in the idle state or the deactivated state determines whether to use a Normal Uplink (NUL) carrier or a SUL for initial access according to the RSRP size of the serving cell.

The present application provides an uplink access method, and the uplink access method of the embodiments of the present application may be applied to various communication systems, for example: a Global System for Mobile communications (GSM) System, a Code Division Multiple Access (CDMA) System, a Wideband Code Division Multiple Access (WCDMA) System, a General Packet Radio Service (GPRS), a Long Term Evolution (Long Term Evolution, LTE) System, an LTE Frequency Division Duplex (FDD) System, an LTE Time Division Duplex (TDD), a Universal Mobile Telecommunications System (UMTS), a Worldwide Interoperability for Microwave Access (WiMAX) communication System, or a 5G System.

Illustratively, a communication system 100 applied in the embodiment of the present application is shown in fig. 1. The communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or referred to as a communication terminal, a terminal). Network device 110 may provide communication coverage for a particular geographic area and may communicate with terminal devices located within that coverage area. Optionally, the Network device 110 may be a Base Transceiver Station (BTS) in a GSM system or a CDMA system, a Base Station (NodeB, NB) in a WCDMA system, an evolved Node B (eNB or eNodeB) in an LTE system, or a wireless controller in a Cloud Radio Access Network (CRAN), or may be a Network device in a Mobile switching center, a relay Station, an Access point, a vehicle-mounted device, a wearable device, a hub, a switch, a bridge, a router, a Network-side device in a 5G Network, or a Network device in a Public Land Mobile Network (PLMN) for future evolution, or the like.

The communication system 100 further comprises at least one terminal device 120 located within the coverage area of the network device 110. As used herein, "terminal equipment" includes, but is not limited to, connections via wireline, such as Public Switched Telephone Network (PSTN), Digital Subscriber Line (DSL), Digital cable, direct cable connection; and/or another data connection/network; and/or via a Wireless interface, e.g., to a cellular Network, a Wireless Local Area Network (WLAN), a digital television Network such as a DVB-H Network, a satellite Network, an AM-FM broadcast transmitter; and/or means of another terminal device arranged to receive/transmit communication signals; and/or Internet of Things (IoT) devices. A terminal device arranged to communicate over a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal", or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; personal Communications Systems (PCS) terminals that may combine cellular radiotelephones with data processing, facsimile, and data Communications capabilities; PDAs that may include radiotelephones, pagers, internet/intranet access, Web browsers, notepads, calendars, and/or Global Positioning System (GPS) receivers; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver. Terminal Equipment may refer to an access terminal, User Equipment (UE), subscriber unit, subscriber station, mobile station, remote terminal, mobile device, User terminal, wireless communication device, User agent, or User Equipment. An access terminal may be a cellular telephone, a cordless telephone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device having Wireless communication capabilities, a computing device or other processing device connected to a Wireless modem, a vehicle mounted device, a wearable device, a terminal device in a 5G network, or a terminal device in a future evolved PLMN, etc.

Optionally, a Device to Device (D2D) communication may be performed between the terminal devices 120.

Alternatively, the 5G system or the 5G network may also be referred to as an NR system or an NR network.

Fig. 1 exemplarily shows one network device and two terminal devices, and optionally, the 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, which is not limited in this embodiment of the present application.

Optionally, the communication system 100 may further include other network entities such as a network controller, a mobility management entity, and the like, which is not limited in this embodiment.

It should be understood that a device having a communication function in a network/system in the embodiments of the present application may be referred to as a communication device. Taking the illustrated communication system 100 as an example, the communication device may include a network device 110 and a terminal device 120 having a communication function, and the network device 110 and the terminal device 120 may be the specific devices described above and are not described herein again; the communication device may also include other devices in the communication system 100, such as other network entities, for example, a network controller, a mobility management entity, and the like, which is not limited in this embodiment.

As shown in fig. 2, an optional processing flow of the uplink access method applied to the terminal device provided in the embodiment of the present application includes the following steps:

step S201, the terminal device determines a target carrier for initial access or data transmission in the normal uplink carrier and the at least one first supplementary uplink carrier according to the first information.

In some embodiments, the first information comprises at least one of: the selection factor information of the NUL carrier and the selection factor information of the first SUL carrier, an RSRP threshold value corresponding to the first SUL carrier, an RSRP threshold range corresponding to the first SUL carrier, a correspondence between the type of the terminal device and the normal uplink carrier, a correspondence between the type of the terminal device and the first SUL carrier, a correspondence between the service type and the normal uplink carrier, a correspondence between the service type and the first SUL carrier, and first indication information sent by a network device.

The uplink access method provided by the embodiment of the present application may further include:

step S200, the terminal device receives a first system message sent by the network device, wherein the first system message is used for indicating the information of the second SUL carrier.

In some embodiments, the first system message may be SIB 1; the number of the second SUL carriers is at least one.

In some embodiments, the first system message may also carry first information; namely, the network device sends the first information to the terminal device through the first system message.

Step S200', the terminal device determines information of the first SUL carrier based on information of the second SUL carrier.

In some embodiments, the terminal device determines, of the second SUL carriers, a SUL carrier supported by the terminal device to be the first SUL carrier. For example, the network device broadcasts X second SUL carriers through SIB1, where Y second SUL carriers among the X second SUL carriers are carriers that the terminal device can support according to its own wireless capability; the terminal device determines that the Y second SUL carriers are the first SUL carriers. If at least one carrier which can be supported by the terminal equipment exists in the second SUL carrier, the terminal equipment confirms that the cell is an accessible cell; if no carrier which can be supported by the terminal device exists in the second SUL carrier, the terminal device considers that the cell is forbidden to be accessed, abandons the residence of the cell, and needs to initiate a cell reselection process.

The following describes an implementation procedure for determining a target carrier for initial access or data transmission by the terminal device based on different contents included in the first information.

1. For a case that the first information includes selection factor information of the NUL carrier and selection factor information of the second SUL carrier, the terminal device may determine the selection factor information of the first SUL carrier first.

If the terminal device determines that the number of the first SUL carriers is the same as the number of the second SUL carriers, the terminal device determines that the selection factor information of the first SUL carriers is the same as the selection factor information of the second SUL carriers.

If the terminal device determines that the number of the first SUL carriers is smaller than the number of the second SUL carriers, the terminal device may recalculate the selection factor information of the first SUL carriers. For example, the terminal device determines, through the first system message, selection factor information of one NUL carrier and selection factor information of X second SUL carriers, and a sum of a selection factor value of one NUL carrier and a selection factor value of X second SUL carriers is 1; if the terminal device determines that Y second SUL carriers are the first SUL carriers from the X second SUL carriers, the terminal device may re-determine the selection factor information of one NUL carrier and the selection factor information of the Y second SUL carriers. In a specific implementation, the selection factor information of the NUL carrier and the selection factor information of the Y second SUL carriers may be normalized to obtain the selection factor information of the new NUL carrier and the selection factor information of the Y first SUL carriers. For example, if the value of X is 2, the value of Y is 1, the selection factor value of a NUL carrier is 0.2, and the selection factor information values of 2 second SUL carriers are 0.3 and 0.5, respectively, then the new NUL carrier after normalization has a selection factor value of 0.4, and the selection factor information value of a first SUL carrier has a value of 0.6.

In some embodiments, the selection factor information for the NUL carrier is the same as the selection factor information for the first SUL carrier; if there are 3 first SUL carriers, the selection factor values for both the NUL and SUL carriers are 0.25. Or the selection factor information of each first SUL carrier is the same, and the selection factor information of the NUL carrier is the difference between 1 and the sum of the selection factor information of all the first SUL carriers; for example, there are 4 first SUL carriers, and the selection factor information of each SUL carrier is a, and the selection factor information of the NUL carrier is (1-4 a). Or, the selection factor information of the NUL carrier and the selection factor information of each first SUL carrier are independent of each other; for example, the selection factor information of the NUL carrier and the selection factor information of the 3 SUL carriers are 0.2, 0.3, 0.4, and 0.1, respectively.

After determining the selection factor information of the first SUL carrier and the selection factor information of the NUL carrier, the terminal device in the Inactive or Idle state may determine a target carrier for initial access by at least the following scheme:

1) and the terminal equipment randomly determines a target carrier for initial access in the NUL carrier and all the first SUL carriers according to the same probability. For example, if there is one NUL carrier and 4 first SUL carriers, the probability that the NUL carrier and each first SUL carrier are determined to be the target carrier is 25%.

2) And the terminal equipment randomly determines a target carrier for initial access in the NUL carrier and all the first SUL carriers based on the selection factor information of the NUL carrier and the selection factor information of the first SUL carrier. For example, if the selection factor value of the NUL carrier is 0.4, the selection factor value of a first SUL carrier is 0.6, and if the random number is 0.8 and 0.8 belongs to the interval range of 0.6 to 1, the terminal device determines that the first SUL carrier is used as the target carrier for tree pool access.

3) Under the condition that the RSRP of the serving cell of the terminal equipment is larger than the RSRP threshold value corresponding to the NUL carrier, the terminal equipment determines the NUL carrier as a target carrier for initial access; for example, the first information further includes an RSRP threshold corresponding to the NUL carrier, and if the RSRP of the serving cell of the terminal device is greater than the RSRP threshold corresponding to the NUL carrier, the terminal device determines that the NUL carrier is a target carrier for initial access. When the RSRP of the serving cell of the terminal equipment is smaller than or equal to the RSRP threshold value corresponding to the NUL carrier, the terminal equipment randomly determines a target carrier for initial access in all the first supplementary uplink carriers with the same probability; or, the terminal device randomly determines a target carrier for initial access in all the first supplementary uplink carriers based on the selection factor information of the first supplementary uplink carriers.

4) And under the condition that the RSRP of the serving cell of the terminal equipment is not smaller than the RSRP threshold value corresponding to the NUL carrier, the terminal equipment determines that the NUL carrier is a target carrier for initial access. For example, if the RSRP of the serving cell of the terminal device is not less than the RSRP threshold corresponding to the NUL carrier, the terminal device determines that the NUL carrier is a target carrier for initial access. Wherein, not less is greater than or equal to; the RSRP of the serving cell of the terminal device is not less than the RSRP threshold corresponding to the NUL carrier, that is, the RSRP of the serving cell of the terminal device is greater than or equal to the RSRP threshold corresponding to the NUL carrier. When the RSRP of the serving cell of the terminal equipment is smaller than the RSRP threshold value corresponding to the normal uplink carrier, the terminal equipment randomly determines a target carrier for initial access in all the first supplementary uplink carriers with the same probability; or, the terminal device randomly determines a target carrier for initial access in all the first supplementary uplink carriers based on the selection factor information of the first supplementary uplink carriers.

In the embodiment of the application, the network device broadcasts the information of a plurality of SUL carriers to the terminal device through the first system message, and the introduction of the plurality of SUL carriers can increase the uplink capacity of the communication system; the terminal equipment selects the NUL carrier or the SUL carrier in a random mode, so that the probability that a plurality of terminal equipment select the same SUL carrier or the NUL carrier can be reduced, and the problem of limited random access resource capacity can be solved.

2. For the case that the first information includes an RSRP threshold corresponding to the first SUL carrier and/or an RSRP threshold range corresponding to the first SUL carrier, the terminal device in the Inactive or Idle state may determine a target carrier for initial access by at least the following scheme:

1) the terminal equipment determines a first SUL carrier corresponding to an RSRP threshold range to which the RSRP of a serving cell of the terminal equipment belongs, and the first SUL carrier is a candidate carrier for initial access.

In some embodiments, the RSRP threshold range comprises a first RSRP threshold and a second RSRP threshold. The RSRP threshold range to which the RSRP of the serving cell of the terminal device belongs may include any one of the following: the first RSRP threshold value is less than the second RSRP threshold value of the serving cell, the first RSRP threshold value is less than or equal to the second RSRP threshold value of the serving cell, and the first RSRP threshold value is less than or equal to the second RSRP threshold value of the serving cell.

2) And the terminal equipment receives second indication information sent by the network equipment, and determines candidate carriers for initial access according to the second indication information.

In some embodiments, the second indication information is used to instruct the terminal device to determine a policy of a carrier for initial access based on the RSRP threshold value; the terminal equipment determines a strategy of a carrier used for initial access based on the RSRP threshold value, and the strategy comprises the following steps:

and under the condition that the RSRP of the serving cell of the terminal equipment is greater than the RSRP threshold value, the first supplementary uplink carrier corresponding to the RSRP threshold value is a candidate carrier for initial access.

Or, when the RSRP of the serving cell of the terminal device is not less than the RSRP threshold, the first supplementary uplink carrier corresponding to the RSRP threshold is a candidate carrier for initial access; wherein, not less is greater than or equal to; the RSRP of the serving cell of the terminal device is not less than the RSRP threshold, that is, the RSRP of the serving cell of the terminal device is greater than or equal to the RSRP threshold.

Or, when the RSRP of the serving cell of the terminal device is smaller than the RSRP threshold, the first supplementary uplink carrier corresponding to the RSRP threshold is a candidate carrier for initial access.

Or, when the RSRP of the serving cell of the terminal device is not greater than the RSRP threshold, the first supplementary uplink carrier corresponding to the RSRP threshold is a candidate carrier for initial access; wherein, is not more than or equal to; and the RSRP of the serving cell of the terminal equipment is not greater than the RSRP threshold value, namely the RSRP of the serving cell of the terminal equipment is less than or equal to the RSRP threshold value.

In some embodiments, the number of candidate carriers determined based on the RSRP threshold value corresponding to the first SUL carrier and/or the RSRP threshold range corresponding to the first SUL carrier is 1, and the candidate carriers are target carriers for initial access.

In some embodiments, when the number of candidate carriers determined based on the RSRP threshold value corresponding to the first SUL carrier and/or the RSRP threshold range corresponding to the first SUL carrier is at least two, the terminal device may further select one of the candidate carriers as the target carrier for the initial access by using the scheme that the terminal device determines the target carrier based on the selection factor information of the NUL carrier and the selection factor information of the first SUL carrier.

The terminal device further determines a scheme of a target carrier by using the terminal device based on the selection factor information of the NUL carrier and the selection factor information of the first SUL carrier, and before selecting one carrier from a plurality of candidate carriers as the target carrier for initial access, the terminal device may first perform normalization processing on the selection factor information of all the candidate carriers to obtain new selection factor information of the candidate carriers; the new selection factor information is different from the selection factor information before normalization processing. Wherein the new selection factor information of the normal uplink carrier in the candidate carriers is the same as the new selection factor information of the first supplementary uplink carrier in the candidate carriers; or the new selection factor information of each first supplemental uplink carrier is the same, and the selection factor information of the normal uplink carrier is the difference between 1 and the sum of the new selection factor information of all the first supplemental uplink carriers; or, the new selection factor information of the normal uplink carrier and the selection factor information of each first supplemental uplink carrier are independent of each other. The terminal equipment randomly determines a target carrier used for initial access in the candidate carriers according to the same probability; or, the terminal device randomly determines a target carrier for initial access in the candidate carriers based on the new selection factor information of the normal uplink carrier and the new selection factor information of the first supplementary uplink carrier.

For example, the terminal device determines candidate carriers for initial access to be SUL carrier 1, SUL carrier 2, and SUL carrier 3 based on the RSRP threshold corresponding to the first SUL carrier and/or the RSRP threshold range corresponding to the first SUL carrier, and then the terminal device may further randomly determine one SUL carrier as a target carrier for initial access in SUL carrier 1, SUL carrier 2, and SUL carrier 3 according to the selection factor information of SUL carrier 1, the selection factor information of SUL carrier 2, and the selection factor information of SUL carrier 3; or, the terminal device may also randomly determine a target carrier for initial access among the SUL carrier 1, the SUL carrier 2, and the SUL carrier 3 with the same probability.

In the embodiment of the application, the condition of the target carrier is determined through the RSRP threshold range and/or the RSRP threshold, the condition can be realized by dividing the use area of the SUL resource, a random number mechanism of the terminal equipment does not need to be tested, and the scheme is simple to realize.

3. For a situation that the first information includes at least one of a correspondence between the type of the terminal device and the normal uplink carrier, a correspondence between the type of the terminal device and the first SUL carrier, a correspondence between the service type and the normal uplink carrier, and a correspondence between the service type and the first SUL carrier, the terminal device in the Inactive or Idle state may determine a target carrier for initial access by at least the following scheme:

1) the terminal equipment determines a second SUL carrier corresponding to the type of the terminal equipment as a candidate carrier according to the corresponding relation between the type of the terminal equipment and the second SUL carrier; and/or the terminal equipment determines the NUL carrier wave corresponding to the type of the terminal equipment as a candidate carrier wave according to the corresponding relation between the type of the terminal equipment and the NUL carrier wave.

In some embodiments, the correspondence between the type of the terminal device and the SUL carrier may be that one terminal device corresponds to a plurality of first SUL carriers. For example, an Industrial Wireless Sensor Network (IWSN) terminal device corresponds to the SUL carrier 1, a video monitoring terminal device corresponds to the SUL carrier 2 and the NUL carrier, and a wearable device corresponds to the SUL carrier 3 and the SUL carrier 2. And if the type of the terminal equipment is wearable equipment, the terminal equipment determines that the SUL carrier 3 and the SUL carrier 2 are candidate carriers.

2) And the terminal equipment determines a second NUL carrier corresponding to the service type according to the corresponding relation between the service type and the second NUL carrier, and/or determines the NUL carrier corresponding to the service type as a candidate carrier for initial access according to the corresponding relation between the service type and the NUL carrier.

In some embodiments, the correspondence between the service type and the first SUL carrier may include one service type corresponding to a plurality of first SUL carriers. For example, the eMBB service corresponds to SUL carrier 1 and SUL carrier 2, and the URLL service corresponds to SUL carrier 3 and NUL carrier.

In some embodiments, the number of candidate carriers determined based on the correspondence between the type of the terminal device and the carrier and/or the correspondence between the service type and the carrier is 1, and the candidate carriers are carriers used for initial access.

In some embodiments, based on a situation that the number of candidate carriers determined by at least one of the correspondence between the type of the terminal device and the normal uplink carrier, the correspondence between the type of the terminal device and the first supplemental uplink carrier, the correspondence between the service type and the normal uplink carrier, and the correspondence between the service type and the first supplemental uplink carrier is at least two, the terminal device may further select a target carrier for initial access among a plurality of candidate carriers by using a scheme in which the terminal device determines a target carrier based on the selection factor information of the NUL carrier and the selection factor information of the first SUL carrier; the terminal device may also select a target carrier for initial access from a plurality of candidate carriers based on a scheme of determining the target carrier based on an RSRP threshold corresponding to the first SUL carrier and/or an RSRP threshold range corresponding to the first SUL carrier.

The terminal device further determines a scheme of a target carrier by using the terminal device based on the selection factor information of the NUL carrier and the selection factor information of the first SUL carrier, or determines a scheme of a target carrier by using an RSRP threshold corresponding to the first SUL carrier and/or an RSRP threshold range corresponding to the first SUL carrier, and before selecting one carrier from a plurality of candidate carriers as a target carrier for initial access, the terminal device may first perform normalization processing on the selection factor information of all the candidate carriers to obtain new selection factor information of the candidate carriers; the new selection factor information is different from the selection factor information before normalization processing. Wherein the new selection factor information of the normal uplink carrier in the candidate carriers is the same as the new selection factor information of the first supplementary uplink carrier in the candidate carriers; or the new selection factor information of each first supplemental uplink carrier is the same, and the selection factor information of the normal uplink carrier is the difference between 1 and the sum of the new selection factor information of all the first supplemental uplink carriers; or, the new selection factor information of the normal uplink carrier and the selection factor information of each first supplemental uplink carrier are independent of each other.

After the terminal equipment obtains the new selection factor information of the candidate carriers, the terminal equipment determines a target carrier for initial access from the candidate carriers.

In specific implementation, the terminal device may randomly determine a target carrier for initial access among the candidate carriers with the same probability; if the candidate carriers for initial access are SUL carrier 1, SUL carrier 2 and SUL carrier 3, the terminal device randomly determines a target carrier for initial access among SUL carrier 1, SUL carrier 2 and SUL carrier 3 with the same probability.

The terminal device may further randomly determine a target carrier for initial access among the candidate carriers based on the new selection factor information of the normal uplink carrier and the new selection factor information of the first supplemental uplink carrier; if the candidate carriers for initial access are SUL carrier 1, SUL carrier 2 and SUL carrier 3, the terminal device further randomly determines one SUL carrier among SUL carrier 1, SUL carrier 2 and SUL carrier 3 as a target carrier for initial access according to the selection factor information of SUL carrier 1, the selection factor information of SUL carrier 2 and the selection factor information of SUL carrier 3.

The terminal device may further determine, by the terminal device, a first SUL carrier corresponding to an RSRP threshold value as a target carrier for initial access in the candidate carriers when the RSRP of a serving cell of the terminal device is greater than the RSRP threshold value of the first SUL carrier; if the candidate carriers for initial access are SUL carrier 1, SUL carrier 2, and SUL carrier 3, if the RSRP of the serving cell of the terminal device is greater than the threshold value of SUL carrier 1, the terminal device determines that SUL carrier 1 is the target carrier for initial access.

The terminal device may further determine, by the terminal device, a first supplementary uplink carrier corresponding to an RSRP threshold value as a target carrier for initial access in the candidate carriers when the RSRP of the serving cell of the terminal device is not less than the RSRP threshold value of the first SUL carrier; if the RSRP of the serving cell of the terminal device is equal to the threshold of the SUL carrier 2, that is, the RSRP of the serving cell of the terminal device is not less than the threshold of the SUL carrier 2, the terminal device determines that the SUL carrier 2 is the target carrier for initial access.

The terminal device may further determine, by the terminal device, that a first supplementary uplink carrier corresponding to an RSRP threshold is a target carrier for initial access in the candidate carriers when the RSRP of the serving cell of the terminal device is smaller than the RSRP threshold of the first SUL carrier; if the candidate carriers for initial access are SUL carrier 1, SUL carrier 2, and SUL carrier 3, if the RSRP of the serving cell of the terminal device is smaller than the threshold value of SUL carrier 3, the terminal device determines that SUL carrier 3 is the target carrier for initial access.

The terminal device may further determine, when an RSRP of a serving cell of the terminal device is not greater than the RSRP threshold, that a first supplementary uplink carrier corresponding to the RSRP threshold is a target carrier for initial access in the candidate carriers; if the RSRP of the serving cell of the terminal device is equal to the threshold of the SUL carrier 2, that is, the RSRP of the serving cell of the terminal device is not greater than the threshold of the SUL carrier 2, the terminal device determines that the SUL carrier 2 is the target carrier for initial access.

The terminal device may further determine, by the terminal device, the candidate carriers when an RSRP of a serving cell of the terminal device is greater than an RSRP threshold corresponding to the NUL carrier, where the NUL carrier is a target carrier used for initial access; if the RSRP of the serving cell of the terminal device is greater than the threshold of the NUL carrier, that is, the RSRP of the serving cell of the terminal device is greater than the threshold of the NUL carrier, the terminal device determines that the NUL carrier is the target carrier for initial access.

The terminal device may further determine, by the terminal device, the NUL carrier as a target carrier for initial access in the candidate carriers when an RSRP of a serving cell of the terminal device is not less than an RSRP threshold corresponding to the NUL carrier; if the RSRP of the serving cell of the terminal device is equal to the threshold of the NUL carrier, that is, the RSRP of the serving cell of the terminal device is not less than the threshold of the NUL carrier, the terminal device determines that the NUL carrier is the target carrier for initial access.

In the embodiment of the application, an operator can configure the SUL carrier or the NUL carrier for the terminal equipment according to the number of the terminal equipment, and the operator can configure the SUL carrier or the NUL carrier for the terminal equipment according to the service type; thereby achieving the purpose of matching the flow of various types of terminal equipment and balancing the load.

4. For the case that the first information includes first indication information, where the first indication information is carried in an RRC Release (Release) message, the terminal device in the connected state may determine a target carrier for initial access at least according to the following scheme: and the network equipment directly indicates the information of the target carrier of the cell corresponding to the network equipment initially accessed by the terminal equipment through the first indication information.

In specific implementation, the terminal device in the connected state may schedule the terminal device to perform data transmission on any NUL carrier or SUL carrier. Under the condition that the network equipment decides to Release the terminal equipment in the connection state to the Idle state or the Inactive state, the network equipment can indicate that the carrier used by the terminal equipment for triggering the random access process next time is a NUL carrier or a SUL carrier in an RRC Release message; and under the condition that the carrier used by the terminal equipment for triggering the random access process next time is the SUL carrier, further indicating the SUL carrier used by the terminal equipment for initial access. In this scenario, the first indication information is carried in an RRC Release message.

In some embodiments, the terminal device may randomly access to a cell corresponding to the network device by using the carrier indicated by the first indication information. For example, the network device a sends first indication information to the terminal device, and indicates that a carrier used in a next random access triggering process is a NUL carrier, and the terminal device only performs random access to a cell corresponding to the network device a by using the NUL carrier according to the indication in the first indication information.

In some embodiments, the first indication information is further used to indicate an effective time of a carrier used by the terminal device for triggering a random access procedure next time; in the valid time, the terminal device may use the carrier indicated in the first indication information as a target carrier initially accessed to a cell corresponding to the network device; if the effective time is exceeded, the terminal device cannot directly use the carrier indicated in the first indication information as a target carrier initially accessed to a cell corresponding to the network device.

In other embodiments, the first indication information does not indicate the effective time of a carrier used by the terminal device for triggering the random access procedure next time; in this scenario, the terminal device may confirm that the carrier indicated by the first indication information is valid until the terminal device enters a connected state.

In the embodiment of the application, the network device definitely knows the service type and the signal quality of the terminal device in a connected state, and meanwhile, the network device can acquire the load condition on the NUL carrier and/or the SUL carrier, so that the network device can direct the terminal device to the NUL carrier or the SUL carrier with light load by the control of a special signaling (such as an RRC Release message) aiming at the relatively static terminal device, and further improve the success rate of random access.

5. For the case that the first information includes first indication information, where the first indication information is carried in DCI, the terminal device in a connected state may determine a target carrier for data transmission at least according to the following scheme: and the network equipment directly indicates the index information of the target carrier wave for data transmission of the terminal equipment through the first indication information.

In specific implementation, the terminal device in the connected state may schedule the terminal device to perform data transmission on any one of the NUL carriers or the SUL carriers; when there is at least one SUL carrier, the network device may further instruct, through the DCI, which SUL or NUL the terminal device utilizes for data transmission when scheduling uplink transmission on a Physical Downlink Control Channel (PDCCH). Therefore, the index information of the first SUL carrier may be added to the DCI, and the terminal device determines, based on the correspondence between the index information of the first SUL carrier and the first SUL carrier, that the first SUL carrier corresponding to the index information of the target carrier is the target carrier for data transmission. Wherein, the corresponding relationship between the index information of the first SUL carrier and the first SUL carrier is carried in a third system message. The third system message may be SIB1, the third system message may be the same system message as the first system message, and the third system message may also be another system message other than the first system message.

In the embodiment of the application, by adding the index information of the target carrier in the DCI, which SUL is used by the network device to flexibly schedule the terminal device for data transmission can be achieved, and the utilization rate of resources is improved.

It should be noted that, in the embodiments of the present application, the terminal device may be an IoT device, and the information of the selection factor may also become a value of the selection factor.

As shown in fig. 3, an optional processing flow of the uplink access method applied to the network device provided in the embodiment of the present application includes the following steps:

step S301, the network device sends information of at least one second supplemental uplink carrier or the first indication information to the terminal device.

Wherein, the information of the at least one second uplink supplemental carrier or the first indication information is used for the terminal device to determine a target carrier for initial access or data transmission.

In some embodiments, information of the second supplemental uplink carrier is carried in a first system message; the first system message may be SIB 1.

In some embodiments, the first indication information is carried in an RRC release message; the first indication information is used for indicating the information of the target carrier of the cell corresponding to the network device initially accessed by the terminal device. Optionally, the first indication information is further used to indicate the valid time of the target carrier; the effective time is the time of the terminal equipment performing initial access based on the target carrier.

In some embodiments, the first indication information is carried in DCI transmitted by the network device; the first indication information is used for indicating index information of a target carrier for data transmission of the terminal equipment.

In some embodiments, the selection factor information of the normal uplink carrier is the same as the selection factor information of the second supplemental uplink carrier; or, when there are at least two second supplemental uplink carriers, the selection factor information of each second supplemental uplink carrier is the same, and the selection factor information of the normal uplink carrier is a difference between 1 and a sum of the selection factor information of all the second supplemental uplink carriers; or, the selection factor information of the normal uplink carrier and the selection factor information of each second supplemental uplink carrier are independent of each other.

In some embodiments, the method further comprises:

step S302, the network device sends at least one of the following items to the terminal device through a second system message: the selection factor information of the normal uplink carrier, the selection factor information of the second supplementary uplink carrier, an RSRP threshold corresponding to the second supplementary uplink carrier, an RSRP threshold range corresponding to the second supplementary uplink carrier, a correspondence between the type of the terminal device and the normal uplink carrier, a correspondence between the type of the terminal device and the second supplementary uplink carrier, a correspondence between the service type and the normal uplink carrier, and a correspondence between the service type and the second supplementary uplink carrier.

In some embodiments, the method further comprises:

step S303, the network device sends second indication information to the terminal device, where the second indication information is used to indicate that the terminal device determines a policy of a carrier for initial access based on the RSRP threshold value.

In some embodiments, the terminal device determines a policy of a carrier for initial access based on the RSRP threshold value, including: and under the condition that the RSRP of the serving cell of the terminal equipment is greater than the RSRP threshold value, the first supplementary uplink carrier corresponding to the RSRP threshold value is a candidate carrier for initial access. Or, when the RSRP of the serving cell of the terminal device is not less than the RSRP threshold, the first supplementary uplink carrier corresponding to the RSRP threshold is a candidate carrier for initial access. Or, when the RSRP of the serving cell of the terminal device is smaller than the RSRP threshold, the first supplementary uplink carrier corresponding to the RSRP threshold is a candidate carrier for initial access. Or, when the RSRP of the serving cell of the terminal device is not greater than the RSRP threshold, the first supplementary uplink carrier corresponding to the RSRP threshold is a candidate carrier for initial access.

In some embodiments, the method further comprises:

step S304, the network device sends a third system message to the terminal device, wherein the third system message carries the corresponding relation between the index information of the second supplementary uplink carrier and the first supplementary uplink carrier; the corresponding relation is used for the terminal equipment to determine a target carrier corresponding to the index information of the target carrier indicated by the first indication information.

It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

In order to implement the uplink access method, an embodiment of the present application provides a terminal device, where a structure of the terminal device 400, as shown in fig. 4, includes:

a processing unit 401, configured to determine, according to the first information, a target carrier used for initial access or data transmission in the normal uplink carrier and the at least one first supplementary uplink carrier; the first information includes at least one of:

the selection factor information of the normal uplink carrier and the selection factor information of the first supplementary uplink carrier, an RSRP threshold value corresponding to the first supplementary uplink carrier, an RSRP threshold range corresponding to the first supplementary uplink carrier, a correspondence between the type of the terminal device and the normal uplink carrier, a correspondence between the type of the terminal device and the first supplementary uplink carrier, a correspondence between the service type and the normal uplink carrier, a correspondence between the service type and the first supplementary uplink carrier, and first indication information sent by a network device.

In some embodiments, the terminal device 400 further includes:

a first receiving unit 402, configured to receive a first system message sent by the network device; the first system message is used for indicating information of a second supplementary uplink carrier;

the processing unit 401 is configured to determine information of the first supplemental uplink carrier based on the information of the second supplemental uplink carrier; the first supplemental uplink carrier is a supplemental uplink carrier supported by the terminal device in the second supplemental uplink carrier.

In some embodiments, at least one of the following is carried in the second system message:

selection factor information of the normal uplink carrier;

selection factor information of the second supplemental uplink carrier;

an RSRP threshold value corresponding to the second supplementary uplink carrier;

an RSRP threshold range corresponding to the second supplemental uplink carrier;

the type of the terminal equipment corresponds to the normal uplink carrier;

the type of the terminal equipment corresponds to the second supplementary uplink carrier;

the corresponding relation between the service type and the normal uplink carrier;

and the service type corresponds to the second supplementary uplink carrier.

In some embodiments, the processing unit 401 is configured to determine a first supplementary uplink carrier corresponding to an RSRP threshold range to which an RSRP of a serving cell of the terminal device belongs, as a candidate carrier for initial access.

In some embodiments, the terminal device 400 further includes:

a second receiving unit 403, configured to receive second indication information sent by a network device, where the second indication information is used to indicate that the terminal device determines a policy of a carrier for initial access based on the RSRP threshold value.

In some embodiments, the terminal device determines a policy of a carrier for initial access based on the RSRP threshold value, including:

when the RSRP of the serving cell of the terminal equipment is larger than the RSRP threshold value, a first supplementary uplink carrier corresponding to the RSRP threshold value is a candidate carrier for initial access;

or, when the RSRP of the serving cell of the terminal device is not less than the RSRP threshold, the first supplementary uplink carrier corresponding to the RSRP threshold is a candidate carrier for initial access;

or, when the RSRP of the serving cell of the terminal device is smaller than the RSRP threshold, the first supplementary uplink carrier corresponding to the RSRP threshold is a candidate carrier for initial access;

or, when the RSRP of the serving cell of the terminal device is not greater than the RSRP threshold, the first supplementary uplink carrier corresponding to the RSRP threshold is a candidate carrier for initial access.

In some embodiments, the processing unit 401 is configured to determine, according to a correspondence between the type of the terminal device and the normal uplink carrier, a normal uplink carrier corresponding to the type of the terminal device, and/or determine, according to the type of the terminal device and the second supplemental uplink carrier, a first supplemental uplink carrier corresponding to the type of the terminal device as a candidate carrier for initial access.

In some embodiments, the processing unit 401 is configured to determine, according to a correspondence between a service type and the normal uplink carrier, a normal uplink carrier corresponding to the service type, and/or determine, according to a correspondence between the service type and the second supplementary uplink carrier, that a first supplementary uplink carrier corresponding to the service type is a candidate carrier for initial access.

In some embodiments, in the case that the number of candidate carriers is one, the candidate carrier is a target carrier for initial access.

In some embodiments, when the number of the candidate carriers is greater than one, the processing unit 401 is further configured to perform normalization processing on the selection factor information of all the candidate carriers to obtain new selection factor information of the candidate carriers; the new selection factor information is different from the selection factor information before normalization processing.

In some embodiments, the new selection factor information for the normal uplink carrier of the candidate carriers is the same as the new selection factor information for the first supplemental uplink carrier of the candidate carriers;

or the new selection factor information of each first supplemental uplink carrier is the same, and the selection factor information of the normal uplink carrier is the difference between 1 and the sum of the new selection factor information of all the first supplemental uplink carriers;

or, the new selection factor information of the normal uplink carrier and the selection factor information of each first supplemental uplink carrier are independent of each other.

In some embodiments, the processing unit 401 is configured to randomly determine a target carrier for initial access among the candidate carriers with the same probability.

In some embodiments, the processing unit 401 is configured to randomly determine a target carrier for initial access among the candidate carriers based on the new selection factor information of the normal uplink carrier and the new selection factor information of the first supplemental uplink carrier.

In some embodiments, the processing unit 401 is configured to determine, as a target carrier for initial access, a first supplementary uplink carrier corresponding to an RSRP threshold range to which an RSRP of a serving cell of the terminal device belongs, among the candidate carriers.

In some embodiments, the processing unit 401 is configured to determine, when an RSRP of a serving cell of the terminal device is greater than the RSRP threshold, that a first supplementary uplink carrier corresponding to the RSRP threshold is a target carrier for initial access in the candidate carriers;

or, when the RSRP of the serving cell of the terminal device is not less than the RSRP threshold, determining that the first supplementary uplink carrier corresponding to the RSRP threshold is a target carrier for initial access in the candidate carriers;

or, when the RSRP of the serving cell of the terminal device is smaller than the RSRP threshold, determining that the first supplementary uplink carrier corresponding to the RSRP threshold is a target carrier for initial access in the candidate carriers;

or, when the RSRP of the serving cell of the terminal device is not greater than the RSRP threshold, determining that a first supplementary uplink carrier corresponding to the RSRP threshold in the candidate carriers is a target carrier for initial access;

or, when the RSRP of the serving cell of the terminal device is greater than the RSRP threshold corresponding to the normal uplink carrier, the terminal device determines that the normal uplink carrier is a target carrier for initial access in the candidate carriers;

or, the terminal device determines that the normal uplink carrier is a target carrier for initial access in the candidate carriers when the RSRP of the serving cell of the terminal device is not less than the RSRP threshold corresponding to the normal uplink carrier.

In some embodiments, the selection factor information of the normal uplink carrier is the same as the selection factor information of the first supplemental uplink carrier;

or, when there are at least two first supplemental uplink carriers, the selection factor information of each first supplemental uplink carrier is the same, and the selection factor information of the normal uplink carrier is a difference between 1 and a sum of the selection factor information of all the first supplemental uplink carriers;

or, the selection factor information of the normal uplink carrier and the selection factor information of each first supplemental uplink carrier are independent of each other.

In some embodiments, the processing unit 401 is configured to randomly determine, with the same probability, one target carrier for initial access in the normal uplink carrier and all of the first supplementary uplink carriers.

In some embodiments, the processing unit 401 is configured to randomly determine a target carrier for initial access in the normal uplink carrier and all of the first supplementary uplink carriers based on the selection factor information of the normal uplink carrier and the selection factor information of the first supplementary uplink carrier.

In some embodiments, the processing unit 401 is configured to determine, when an RSRP of a serving cell of the terminal device is greater than an RSRP threshold corresponding to the normal uplink carrier, that the normal uplink carrier is a target carrier for initial access;

or, determining that the normal uplink carrier is a target carrier for initial access when the RSRP of the serving cell of the terminal device is not less than the RSRP threshold corresponding to the normal uplink carrier.

In some embodiments, the processing unit 401 is configured to randomly determine, with the same probability, one target carrier for initial access in all the first supplementary uplink carriers when RSRP of a serving cell of the terminal device is smaller than an RSRP threshold corresponding to the normal uplink carrier;

or, under the condition that the RSRP of the serving cell of the terminal device is not greater than the RSRP threshold corresponding to the normal uplink carrier, randomly determining a target carrier for initial access in all the first supplementary uplink carriers with the same probability.

In some embodiments, the processing unit 401 is configured to, when an RSRP of a serving cell of the terminal device is smaller than an RSRP threshold corresponding to the normal uplink carrier, randomly determine, based on selection factor information of the first supplemental uplink carrier, one target carrier for initial access among all the first supplemental uplink carriers;

or, when the RSRP of the serving cell of the terminal device is not greater than the RSRP threshold corresponding to the normal uplink carrier, randomly determining a target carrier for initial access in all the first supplementary uplink carriers based on the selection factor information of the first supplementary uplink carriers.

In some embodiments, the first indication information is carried in an RRC release message sent by the network device; the first indication information is used for indicating the information of the target carrier of the cell corresponding to the network device initially accessed by the terminal device.

In some embodiments, the first indication information is further used for indicating the valid time of the target carrier; the effective time is the time of the terminal equipment performing initial access based on the target carrier.

In some embodiments, the processing unit 401 is configured to determine, based on a correspondence relationship between index information of the first supplemental uplink carrier and the first supplemental uplink carrier, that the first supplemental uplink carrier corresponding to the index information of the target carrier is a target carrier for data transmission.

In some embodiments, the correspondence between the index information of the first supplemental uplink carrier and the first supplemental uplink carrier is carried in a third system message.

In order to implement the uplink access method, an embodiment of the present application provides a network device, where a structure of the network device 500, as shown in fig. 5, includes:

a sending unit 501, configured to send information of at least one second supplemental uplink carrier or first indication information to a terminal device; wherein the content of the first and second substances,

In some embodiments, the information of the second supplemental uplink carrier is carried in a first system message.

In some embodiments, the sending unit 501 is further configured to send, to the terminal device through a second system message, at least one of the following:

selection factor information of the normal uplink carrier;

selection factor information of the second supplemental uplink carrier;

the type of the terminal equipment corresponds to the normal uplink carrier;

and the service type corresponds to the second supplementary uplink carrier.

In some embodiments, the sending unit 501 is further configured to send second indication information to the terminal device, where the second indication information is used to instruct the terminal device to determine a policy of carriers for initial access based on the RSRP threshold value.

In some embodiments, the policy for the carrier for initial access includes: when the RSRP of the serving cell of the terminal equipment is larger than the RSRP threshold value, a first supplementary uplink carrier corresponding to the RSRP threshold value is a candidate carrier for initial access;

In some embodiments, the first indication information is carried in an RRC release message; the first indication information is used for indicating the information of the target carrier of the cell corresponding to the network device initially accessed by the terminal device.

In some embodiments, the sending unit 501 is further configured to send a third system message to the terminal device, where the third system message carries a corresponding relationship between the index information of the second supplemental uplink carrier and the first supplemental uplink carrier; the corresponding relation is used for the terminal equipment to determine a target carrier corresponding to the index information of the target carrier indicated by the first indication information.

The embodiment of the present application further provides a terminal device, which includes a processor and a memory for storing a computer program capable of running on the processor, where the processor is configured to execute the steps of the uplink access method executed by the terminal device when running the computer program.

The embodiment of the present application further provides a network device, which includes a processor and a memory for storing a computer program capable of running on the processor, where the processor is configured to execute the steps of the uplink access method executed by the network device when running the computer program.

An embodiment of the present application further provides a chip, including: and the processor is used for calling and running the computer program from the memory so that the equipment provided with the chip executes the uplink access method executed by the terminal equipment.

An embodiment of the present application further provides a chip, including: and the processor is used for calling and running the computer program from the memory so that the equipment provided with the chip executes the uplink access method executed by the network equipment.

The embodiment of the present application further provides a storage medium, which stores an executable program, and when the executable program is executed by a processor, the uplink access method executed by the terminal device is implemented.

The embodiment of the present application further provides a storage medium, which stores an executable program, and when the executable program is executed by a processor, the uplink access method executed by the network device is implemented.

An embodiment of the present application further provides a computer program product, which includes computer program instructions, where the computer program instructions enable a computer to execute the uplink access method executed by the terminal device.

An embodiment of the present application further provides a computer program product, which includes computer program instructions, where the computer program instructions enable a computer to execute the uplink access method.

The embodiment of the present application further provides a computer program, where the computer program enables a computer to execute the uplink access method executed by the terminal device.

The embodiment of the present application further provides a computer program, where the computer program enables a computer to execute the uplink access method executed by the network device.

Fig. 6 is a schematic diagram of a hardware component structure of an electronic device (a terminal device or a network device) according to an embodiment of the present application, where the electronic device 700 includes: at least one processor 701, a memory 702, and at least one network interface 704. The various components in the electronic device 700 are coupled together by a bus system 705. It is understood that the bus system 705 is used to enable communications among the components. The bus system 705 includes a power bus, a control bus, and a status signal bus in addition to a data bus. But for clarity of illustration the various busses are labeled in figure 6 as the bus system 705.

It will be appreciated that the memory 702 can be either volatile memory or nonvolatile memory, and can include both volatile and nonvolatile memory. The non-volatile Memory may be ROM, Programmable Read-Only Memory (PROM), Erasable Programmable Read-Only Memory (EPROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), magnetic random access Memory (FRAM), Flash Memory (Flash Memory), magnetic surface Memory, optical Disc, or Compact Disc Read-Only Memory (CD-ROM); the magnetic surface storage may be disk storage or tape storage. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), Enhanced Synchronous Dynamic Random Access Memory (Enhanced DRAM), Synchronous Dynamic Random Access Memory (SLDRAM), Direct Memory (DRmb Access), and Random Access Memory (DRAM). The memory 702 described in embodiments herein is intended to comprise, without being limited to, these and any other suitable types of memory.

The memory 702 in the embodiments of the present application is used to store various types of data to support the operation of the electronic device 700. Examples of such data include: any computer program for operating on electronic device 700, such as application 7022. A program for implementing the methods according to embodiments of the present application may be included in application 7022.

The method disclosed in the embodiments of the present application may be applied to the processor 701, or implemented by the processor 701. The processor 701 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be implemented by integrated logic circuits of hardware or instructions in the form of software in the processor 701. The Processor 701 may be a general purpose Processor, a Digital Signal Processor (DSP), or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. The processor 701 may implement or perform the methods, steps, and logic blocks disclosed in the embodiments of the present application. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software modules may be located in a storage medium located in the memory 702, and the processor 701 may read the information in the memory 702 and perform the steps of the aforementioned methods in conjunction with its hardware.

In an exemplary embodiment, the electronic Device 700 may be implemented by one or more Application Specific Integrated Circuits (ASICs), DSPs, Programmable Logic Devices (PLDs), Complex Programmable Logic Devices (CPLDs), FPGAs, general purpose processors, controllers, MCUs, MPUs, or other electronic components for performing the foregoing methods.

The embodiment of the application also provides a storage medium for storing the computer program.

Optionally, the storage medium may be applied to the terminal device in the embodiment of the present application, and the computer program enables the computer to execute corresponding processes in each method in the embodiment of the present application, which is not described herein again for brevity.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

The above description is only exemplary of the present application and should not be taken as limiting the scope of the present application, as any modifications, equivalents, improvements, etc. made within the spirit and principle of the present application should be included in the scope of the present application.

Claims

An uplink access method, the method comprising:

the terminal equipment determines a target carrier used for initial access or data transmission in the normal uplink carrier and at least one first supplementary uplink carrier according to the first information; the first information includes at least one of:

the selection factor information of the normal uplink carrier and the selection factor information of the first supplementary uplink carrier, a Reference Signal Received Power (RSRP) threshold value corresponding to the first supplementary uplink carrier, an RSRP threshold range corresponding to the first supplementary uplink carrier, a corresponding relation between the type of the terminal device and the normal uplink carrier, a corresponding relation between the type of the terminal device and the first supplementary uplink carrier, a corresponding relation between the service type and the normal uplink carrier, a corresponding relation between the service type and the first supplementary uplink carrier, and first indication information sent by a network device.
The method of claim 1, wherein the method further comprises:

the terminal equipment receives a first system message sent by the network equipment; the first system message is used for indicating information of a second supplementary uplink carrier;

the terminal equipment determines the information of the first supplementary uplink carrier based on the information of the second supplementary uplink carrier;

the first supplemental uplink carrier is a supplemental uplink carrier supported by the terminal device in the second supplemental uplink carrier.
The method of claim 2, wherein at least one of the following is carried in the second system message:

selection factor information of the normal uplink carrier;

selection factor information of the second supplemental uplink carrier;

an RSRP threshold value corresponding to the second supplementary uplink carrier;

an RSRP threshold range corresponding to the second supplemental uplink carrier;

the type of the terminal equipment corresponds to the normal uplink carrier;

the type of the terminal equipment corresponds to the second supplementary uplink carrier;

the corresponding relation between the service type and the normal uplink carrier;

and the service type corresponds to the second supplementary uplink carrier.
The method according to any one of claims 1 to 3, wherein the determining, by the terminal device, one target carrier for initial access or data transmission in the normal uplink carrier and the at least one first supplementary uplink carrier according to the first information includes:

the terminal equipment determines a first supplementary uplink carrier corresponding to an RSRP threshold range to which the RSRP of a serving cell of the terminal equipment belongs, and the first supplementary uplink carrier is a candidate carrier for initial access.
The method of any of claims 1 to 3, wherein the method further comprises:

and the terminal equipment receives second indication information sent by the network equipment, wherein the second indication information is used for indicating the terminal equipment to determine a strategy of a carrier used for initial access based on the RSRP threshold value.
The method of claim 5, wherein the terminal device determining a policy of carriers for initial access based on the RSRP threshold value comprises:

when the RSRP of the serving cell of the terminal equipment is larger than the RSRP threshold value, a first supplementary uplink carrier corresponding to the RSRP threshold value is a candidate carrier for initial access;

or, when the RSRP of the serving cell of the terminal device is not less than the RSRP threshold, the first supplementary uplink carrier corresponding to the RSRP threshold is a candidate carrier for initial access;

or, when the RSRP of the serving cell of the terminal device is smaller than the RSRP threshold, the first supplementary uplink carrier corresponding to the RSRP threshold is a candidate carrier for initial access;

or, when the RSRP of the serving cell of the terminal device is not greater than the RSRP threshold, the first supplementary uplink carrier corresponding to the RSRP threshold is a candidate carrier for initial access.
The method according to any one of claims 1 to 3, wherein the determining, by the terminal device, one target carrier for initial access or data transmission in the normal uplink carrier and the at least one first supplementary uplink carrier according to the first information includes:

and the terminal equipment determines a normal uplink carrier corresponding to the type of the terminal equipment according to the corresponding relation between the type of the terminal equipment and the normal uplink carrier, and/or determines a first supplementary uplink carrier corresponding to the type of the terminal equipment as a candidate carrier for initial access according to the type of the terminal equipment and the second supplementary uplink carrier.
The method according to any one of claims 1 to 3 and 7, wherein the determining, by the terminal device, a target carrier for initial access or data transmission in the normal uplink carrier and the at least one first supplementary uplink carrier according to the first information includes:

and the terminal equipment determines a normal uplink carrier corresponding to the service type according to the corresponding relation between the service type and the normal uplink carrier, and/or determines a first supplementary uplink carrier corresponding to the service type as a candidate carrier for initial access according to the corresponding relation between the service type and the second supplementary uplink carrier.
The method according to any one of claims 4, 6, 7 and 8, wherein the candidate carrier is a target carrier for initial access in case the number of candidate carriers is one.
The method according to any one of claims 4, 6, 7 and 8, wherein in case the number of candidate carriers is greater than one, the method further comprises:

the terminal equipment normalizes the selection factor information of all the candidate carriers to obtain new selection factor information of the candidate carriers; the new selection factor information is different from the selection factor information before normalization processing.
The method of claim 10, wherein the new selection factor information for a normal uplink carrier of the candidate carriers is the same as the new selection factor information for a first supplemental uplink carrier of the candidate carriers;

or the new selection factor information of each first supplemental uplink carrier is the same, and the selection factor information of the normal uplink carrier is the difference between 1 and the sum of the new selection factor information of all the first supplemental uplink carriers;

or, the new selection factor information of the normal uplink carrier and the selection factor information of each first supplemental uplink carrier are independent of each other.
The method according to any one of claims 4, 6, 7, 8, 10 and 11, wherein the determining, by the terminal device, a target carrier for initial access or data transmission in the normal uplink carrier and the at least one first supplementary uplink carrier according to the first information comprises:

and the terminal equipment randomly determines a target carrier for initial access in the candidate carriers with the same probability.
The method according to claim 10 or 11, wherein the determining, by the terminal device, a target carrier for initial access or data transmission in the normal uplink carrier and the at least one first supplementary uplink carrier according to the first information includes:

and the terminal equipment randomly determines a target carrier used for initial access in the candidate carriers based on the new selection factor information of the normal uplink carrier and the new selection factor information of the first supplementary uplink carrier.
The method according to claim 7 or 8, wherein, in the case that the number of candidate carriers is greater than one, the determining, by the terminal device, one target carrier for initial access or data transmission in the normal uplink carrier and the at least one first supplementary uplink carrier according to the first information includes:

and the terminal equipment determines a first supplementary uplink carrier corresponding to the RSRP threshold range to which the RSRP of the serving cell of the terminal equipment belongs in the candidate carriers as a target carrier for initial access.
The method according to claim 7 or 8, wherein, in the case that the number of candidate carriers is greater than one, the determining, by the terminal device, one target carrier for initial access or data transmission in the normal uplink carrier and the at least one first supplementary uplink carrier according to the first information includes:

when the RSRP of the serving cell of the terminal equipment is larger than the RSRP threshold value, the terminal equipment determines that a first supplementary uplink carrier corresponding to the RSRP threshold value in the candidate carriers is a target carrier for initial access;

or, when the RSRP of the serving cell of the terminal device is not less than the RSRP threshold, the terminal device determines that a first supplementary uplink carrier corresponding to the RSRP threshold is a target carrier for initial access in the candidate carriers;

or, when the RSRP of the serving cell of the terminal device is smaller than the RSRP threshold, the terminal device determines that a first supplementary uplink carrier corresponding to the RSRP threshold is a target carrier for initial access in the candidate carriers;

or, when the RSRP of the serving cell of the terminal device is not greater than the RSRP threshold, the terminal device determines that a first supplementary uplink carrier corresponding to the RSRP threshold is a target carrier for initial access in the candidate carriers;

or, when the RSRP of the serving cell of the terminal device is greater than the RSRP threshold corresponding to the normal uplink carrier, the terminal device determines that the normal uplink carrier is a target carrier for initial access in the candidate carriers;

or, the terminal device determines that the normal uplink carrier is a target carrier for initial access in the candidate carriers when the RSRP of the serving cell of the terminal device is not less than the RSRP threshold corresponding to the normal uplink carrier.
The method according to any of claims 1 to 3, wherein the selection factor information of the normal uplink carrier is the same as the selection factor information of the first supplemental uplink carrier;

or, when there are at least two first supplemental uplink carriers, the selection factor information of each first supplemental uplink carrier is the same, and the selection factor information of the normal uplink carrier is a difference between 1 and a sum of the selection factor information of all the first supplemental uplink carriers;

or, the selection factor information of the normal uplink carrier and the selection factor information of each first supplemental uplink carrier are independent of each other.
The method according to any one of claims 1 to 3 and 16, wherein the determining, by the terminal device, a target carrier for initial access or data transmission in the normal uplink carrier and the at least one first supplementary uplink carrier according to the first information includes:

and the terminal equipment randomly determines a target carrier for initial access in the normal uplink carrier and all the first supplementary uplink carriers according to the same probability.
The method according to any one of claims 1 to 3 and 16, wherein the determining, by the terminal device, a target carrier for initial access or data transmission in the normal uplink carrier and the at least one first supplementary uplink carrier according to the first information includes:

and the terminal equipment randomly determines a target carrier for initial access in the normal uplink carrier and all the first supplementary uplink carriers based on the selection factor information of the normal uplink carrier and the selection factor information of the first supplementary uplink carrier.
The method according to any one of claims 1 to 3 and 16, wherein the determining, by the terminal device, a target carrier for initial access or data transmission in the normal uplink carrier and the at least one first supplementary uplink carrier according to the first information includes:

when the RSRP of the serving cell of the terminal equipment is larger than the RSRP threshold value corresponding to the normal uplink carrier, the terminal equipment determines that the normal uplink carrier is a target carrier for initial access;

or, the terminal device determines that the normal uplink carrier is a target carrier for initial access when RSRP of a serving cell of the terminal device is not less than an RSRP threshold corresponding to the normal uplink carrier.
The method according to any one of claims 1 to 3 and 16, wherein the determining, by the terminal device, a target carrier for initial access or data transmission in the normal uplink carrier and the at least one first supplementary uplink carrier according to the first information includes:

when the RSRP of the serving cell of the terminal equipment is smaller than the RSRP threshold value corresponding to the normal uplink carrier, the terminal equipment randomly determines a target carrier for initial access in all the first supplementary uplink carriers with the same probability;

or, when the RSRP of the serving cell of the terminal device is not greater than the RSRP threshold corresponding to the normal uplink carrier, the terminal device randomly determines a target carrier for initial access among all the first supplementary uplink carriers with the same probability.
The method according to any one of claims 1 to 3 and 16, wherein the determining, by the terminal device, a target carrier for initial access or data transmission in the normal uplink carrier and the at least one first supplementary uplink carrier according to the first information includes:

when the RSRP of the serving cell of the terminal equipment is smaller than the RSRP threshold value corresponding to the normal uplink carrier, the terminal equipment randomly determines a target carrier for initial access in all the first supplementary uplink carriers based on the selection factor information of the first supplementary uplink carriers;

or, when the RSRP of the serving cell of the terminal device is not greater than the RSRP threshold corresponding to the normal uplink carrier, the terminal device randomly determines a target carrier for initial access among all the first supplementary uplink carriers based on the selection factor information of the first supplementary uplink carrier.
The method according to any one of claims 1 to 3, wherein the first indication information is carried in a Radio Resource Control (RRC) release message sent by the network equipment;

the first indication information is used for indicating the information of the target carrier of the cell corresponding to the network device initially accessed by the terminal device.
The method of claim 22, wherein the first indication information is further used for indicating an effective time of the target carrier; the effective time is the time of the terminal equipment performing initial access based on the target carrier.
The method according to any one of claims 1 to 3, wherein the first indication information is carried in Downlink Control Information (DCI) sent by the network equipment;

the first indication information is used for indicating index information of a target carrier for data transmission of the terminal equipment.
The method of claim 24, wherein the determining, by the terminal device, a target carrier for initial access or data transmission in the normal uplink carrier and the at least one first supplementary uplink carrier according to the first information comprises:

and the terminal equipment determines the first supplementary uplink carrier corresponding to the index information of the target carrier as the target carrier for data transmission based on the corresponding relation between the index information of the first supplementary uplink carrier and the first supplementary uplink carrier.
The method of claim 25, wherein a correspondence of index information of the first supplemental uplink carrier to the first supplemental uplink carrier is carried in a third system message.
An uplink access method, the method comprising:

the network equipment sends information or first indication information of at least one second supplementary uplink carrier to the terminal equipment; wherein the content of the first and second substances,

the information of the at least one second uplink supplemental carrier or the first indication information is used for the terminal device to determine a target carrier for initial access or data transmission.
The method of claim 27, wherein information of the second supplemental uplink carrier is carried in a first system message.
The method of claim 27 or 28, wherein the method further comprises: the network equipment sends at least one of the following to the terminal equipment through a second system message:

selection factor information of the normal uplink carrier;

selection factor information of the second supplemental uplink carrier;

a Reference Signal Received Power (RSRP) threshold value corresponding to the second supplementary uplink carrier;

an RSRP threshold range corresponding to the second supplemental uplink carrier;

the type of the terminal equipment corresponds to the normal uplink carrier;

the type of the terminal equipment corresponds to the second supplementary uplink carrier;

the corresponding relation between the service type and the normal uplink carrier;

and the service type corresponds to the second supplementary uplink carrier.
The method of any of claims 27 to 29, wherein the method further comprises:

and the network equipment sends second indication information to the terminal equipment, wherein the second indication information is used for indicating the terminal equipment to determine a strategy of a carrier used for initial access based on the RSRP threshold value.
The method of claim 30, wherein the determining a policy for a carrier for initial access comprises:

when the RSRP of the serving cell of the terminal equipment is larger than the RSRP threshold value, a first supplementary uplink carrier corresponding to the RSRP threshold value is a candidate carrier for initial access;

or, when the RSRP of the serving cell of the terminal device is not less than the RSRP threshold, the first supplementary uplink carrier corresponding to the RSRP threshold is a candidate carrier for initial access;

or, when the RSRP of the serving cell of the terminal device is smaller than the RSRP threshold, the first supplementary uplink carrier corresponding to the RSRP threshold is a candidate carrier for initial access;

or, when the RSRP of the serving cell of the terminal device is not greater than the RSRP threshold, the first supplementary uplink carrier corresponding to the RSRP threshold is a candidate carrier for initial access.
The method of claim 29, wherein the selection factor information of the normal uplink carrier is the same as the selection factor information of the second supplemental uplink carrier;

or, when there are at least two second supplemental uplink carriers, the selection factor information of each second supplemental uplink carrier is the same, and the selection factor information of the normal uplink carrier is a difference between 1 and a sum of the selection factor information of all the second supplemental uplink carriers;

or, the selection factor information of the normal uplink carrier and the selection factor information of each second supplemental uplink carrier are independent of each other.
The method according to any of claims 27 to 32, wherein the first indication information is carried in a radio resource control, RRC, release message;

the first indication information is used for indicating the information of the target carrier of the cell corresponding to the network device initially accessed by the terminal device.
The method of claim 33, wherein the first indication information is further used for indicating an effective time of the target carrier; the effective time is the time of the terminal equipment performing initial access based on the target carrier.
The method according to any one of claims 27 to 32, wherein the first indication information is carried in downlink control information DCI sent by the network device;

the first indication information is used for indicating index information of a target carrier for data transmission of the terminal equipment.
The method of any one of claims 27 to 33, wherein the method further comprises:

the network equipment sends a third system message to the terminal equipment, wherein the third system message carries the corresponding relation between the index information of the second supplementary uplink carrier and the first supplementary uplink carrier; the corresponding relation is used for the terminal equipment to determine a target carrier corresponding to the index information of the target carrier indicated by the first indication information.
A terminal device, the terminal device comprising:

a processing unit configured to determine a target carrier for initial access or data transmission in the normal uplink carrier and the at least one first supplementary uplink carrier according to the first information; the first information includes at least one of:

the selection factor information of the normal uplink carrier and the selection factor information of the first supplementary uplink carrier, a Reference Signal Received Power (RSRP) threshold value corresponding to the first supplementary uplink carrier, an RSRP threshold range corresponding to the first supplementary uplink carrier, a corresponding relation between the type of the terminal device and the normal uplink carrier, a corresponding relation between the type of the terminal device and the first supplementary uplink carrier, a corresponding relation between the service type and the normal uplink carrier, a corresponding relation between the service type and the first supplementary uplink carrier, and first indication information sent by a network device.
The terminal device of claim 37, wherein the terminal device further comprises:

a first receiving unit configured to receive a first system message sent by the network device; the first system message is used for indicating information of a second supplementary uplink carrier;

the processing unit is configured to determine information of the first supplementary uplink carrier based on the information of the second supplementary uplink carrier;

the first supplemental uplink carrier is a supplemental uplink carrier supported by the terminal device in the second supplemental uplink carrier.
The terminal device of claim 38, wherein at least one of the following is carried in the second system message:

selection factor information of the normal uplink carrier;

selection factor information of the second supplemental uplink carrier;

an RSRP threshold value corresponding to the second supplementary uplink carrier;

an RSRP threshold range corresponding to the second supplemental uplink carrier;

the type of the terminal equipment corresponds to the normal uplink carrier;

the type of the terminal equipment corresponds to the second supplementary uplink carrier;

the corresponding relation between the service type and the normal uplink carrier;

and the service type corresponds to the second supplementary uplink carrier.
The terminal device of any one of claims 37 to 39, wherein the processing unit is configured to determine a first supplementary uplink carrier corresponding to an RSRP threshold range to which an RSRP of a serving cell of the terminal device belongs, as a candidate carrier for initial access.
The terminal device of any one of claims 37 to 39, wherein the terminal device further comprises:

a second receiving unit, configured to receive second indication information sent by a network device, where the second indication information is used to indicate that the terminal device determines a policy of a carrier for initial access based on the RSRP threshold value.
The terminal device of claim 41, wherein the terminal device determines a policy of carriers for initial access based on the RSRP threshold value, comprising:

when the RSRP of the serving cell of the terminal equipment is larger than the RSRP threshold value, a first supplementary uplink carrier corresponding to the RSRP threshold value is a candidate carrier for initial access;

or, when the RSRP of the serving cell of the terminal device is not less than the RSRP threshold, the first supplementary uplink carrier corresponding to the RSRP threshold is a candidate carrier for initial access;

or, when the RSRP of the serving cell of the terminal device is smaller than the RSRP threshold, the first supplementary uplink carrier corresponding to the RSRP threshold is a candidate carrier for initial access;

or, when the RSRP of the serving cell of the terminal device is not greater than the RSRP threshold, the first supplementary uplink carrier corresponding to the RSRP threshold is a candidate carrier for initial access.
The terminal device according to any one of claims 37 to 39, wherein the processing unit is configured to determine a normal uplink carrier corresponding to the type of the terminal device according to a correspondence between the type of the terminal device and the normal uplink carrier, and/or determine a first supplementary uplink carrier corresponding to the type of the terminal device as a candidate carrier for initial access according to the type of the terminal device and the second supplementary uplink carrier.
The terminal device according to any one of claims 37 to 39 and 43, wherein the processing unit is configured to determine a normal uplink carrier corresponding to a service type according to a correspondence between the service type and the normal uplink carrier, and/or determine a first supplementary uplink carrier corresponding to the service type as a candidate carrier for initial access according to a correspondence between the service type and the second supplementary uplink carrier.
The terminal device of any one of claims 40, 42, 43 and 44, wherein the candidate carrier is a target carrier for initial access if the number of candidate carriers is one.
The terminal device according to any one of claims 40, 42, 43, and 44, wherein in a case that the number of the candidate carriers is greater than one, the processing unit is further configured to perform normalization processing on selection factor information of all the candidate carriers to obtain new selection factor information of the candidate carriers; the new selection factor information is different from the selection factor information before normalization processing.
The terminal device of claim 46, wherein the new selection factor information for a normal uplink carrier of the candidate carriers is the same as the new selection factor information for a first supplemental uplink carrier of the candidate carriers;

or the new selection factor information of each first supplemental uplink carrier is the same, and the selection factor information of the normal uplink carrier is the difference between 1 and the sum of the new selection factor information of all the first supplemental uplink carriers;

or, the new selection factor information of the normal uplink carrier and the selection factor information of each first supplemental uplink carrier are independent of each other.
The terminal device according to any one of claims 40, 42, 43, 44, 46 and 47, wherein the processing unit is configured to randomly determine a target carrier for initial access among the candidate carriers with the same probability.
The terminal device according to claim 46 or 47, wherein the processing unit is configured to randomly determine a target carrier for initial access among the candidate carriers based on the new selection factor information of the normal uplink carrier and the new selection factor information of the first supplemental uplink carrier.
The terminal device of claim 43 or 44, wherein the processing unit is configured to determine, as a target carrier for initial access, a first supplementary uplink carrier corresponding to an RSRP threshold range to which an RSRP of a serving cell of the terminal device belongs, among the candidate carriers.
The terminal device according to claim 46 or 47, wherein the processing unit is configured to determine, in the case that an RSRP of a serving cell of the terminal device is greater than the RSRP threshold value, that a first supplementary uplink carrier corresponding to the RSRP threshold value in the candidate carriers is a target carrier for initial access;

or, when the RSRP of the serving cell of the terminal device is not less than the RSRP threshold, determining that the first supplementary uplink carrier corresponding to the RSRP threshold is a target carrier for initial access in the candidate carriers;

or, when the RSRP of the serving cell of the terminal device is smaller than the RSRP threshold, determining that the first supplementary uplink carrier corresponding to the RSRP threshold is a target carrier for initial access in the candidate carriers;

or, when the RSRP of the serving cell of the terminal device is not greater than the RSRP threshold, determining that a first supplementary uplink carrier corresponding to the RSRP threshold in the candidate carriers is a target carrier for initial access;

or, when the RSRP of the serving cell of the terminal device is greater than the RSRP threshold corresponding to the normal uplink carrier, the terminal device determines that the normal uplink carrier is a target carrier for initial access in the candidate carriers;

or, the terminal device determines that the normal uplink carrier is a target carrier for initial access in the candidate carriers when the RSRP of the serving cell of the terminal device is not less than the RSRP threshold corresponding to the normal uplink carrier.
The terminal device according to any of claims 37 to 39, wherein the selection factor information of the normal uplink carrier is the same as the selection factor information of the first supplemental uplink carrier;

or, when there are at least two first supplemental uplink carriers, the selection factor information of each first supplemental uplink carrier is the same, and the selection factor information of the normal uplink carrier is a difference between 1 and a sum of the selection factor information of all the first supplemental uplink carriers;

or, the selection factor information of the normal uplink carrier and the selection factor information of each first supplemental uplink carrier are independent of each other.
The terminal device according to any of claims 37 to 39 and 52, wherein the processing unit is configured to randomly determine a target carrier for initial access in the normal uplink carrier and all the first supplementary uplink carriers with the same probability.
The terminal device according to any one of claims 37 to 39 and 52, wherein the processing unit is configured to randomly determine a target carrier for initial access among the normal uplink carrier and all the first supplementary uplink carriers based on the selection factor information of the normal uplink carrier and the selection factor information of the first supplementary uplink carrier.
The terminal device according to any one of claims 37 to 39 and 52, wherein the processing unit is configured to determine the normal uplink carrier as a target carrier for initial access when the RSRP of the serving cell of the terminal device is greater than the RSRP threshold corresponding to the normal uplink carrier;

or, determining that the normal uplink carrier is a target carrier for initial access when the RSRP of the serving cell of the terminal device is not less than the RSRP threshold corresponding to the normal uplink carrier.
The terminal device according to any one of claims 37 to 39 and 52, wherein the processing unit is configured to randomly determine a target carrier for initial access among all the first supplementary uplink carriers with the same probability in case that the RSRP of the serving cell of the terminal device is smaller than the RSRP threshold corresponding to the normal uplink carrier;

or, under the condition that the RSRP of the serving cell of the terminal device is not greater than the RSRP threshold corresponding to the normal uplink carrier, randomly determining a target carrier for initial access in all the first supplementary uplink carriers with the same probability.
The terminal device according to any one of claims 37 to 39 and 52, wherein the processing unit is configured to randomly determine a target carrier for initial access in all the first supplementary uplink carriers based on the selection factor information of the first supplementary uplink carriers if the RSRP of the serving cell of the terminal device is smaller than the RSRP threshold corresponding to the normal uplink carrier;

or, when the RSRP of the serving cell of the terminal device is not greater than the RSRP threshold corresponding to the normal uplink carrier, randomly determining a target carrier for initial access in all the first supplementary uplink carriers based on the selection factor information of the first supplementary uplink carriers.
The terminal device according to any of claims 37 to 39, wherein the first indication information is carried in a Radio Resource Control (RRC) release message sent by the network device;

the first indication information is used for indicating the information of the target carrier of the cell corresponding to the network device initially accessed by the terminal device.
The terminal device of claim 58, wherein the first indication information is further used for indicating an effective time of the target carrier; the effective time is the time of the terminal equipment performing initial access based on the target carrier.
The terminal device according to any one of claims 37 to 39, wherein the first indication information is carried in downlink control information DCI sent by the network device;

the first indication information is used for indicating index information of a target carrier for data transmission of the terminal equipment.
The terminal device according to claim 60, wherein the processing unit is configured to determine, based on a correspondence relationship between index information of the first supplemental uplink carrier and the first supplemental uplink carrier, that the first supplemental uplink carrier corresponding to the index information of the target carrier is a target carrier for data transmission.
The terminal device of claim 61, wherein a correspondence of index information of the first supplemental uplink carrier to the first supplemental uplink carrier is carried in a third system message.
A network device, the network device comprising:

a sending unit configured to send information of at least one second supplementary uplink carrier or first indication information to the terminal device; wherein, the information of the at least one second uplink supplemental carrier or the first indication information is used for the terminal device to determine a target carrier for initial access or data transmission.
The network device of claim 63, wherein information of the second supplemental uplink carrier is carried in a first system message.
The network device of claim 63 or 64,

the sending unit is further configured to send, to the terminal device through a second system message, at least one of:

selection factor information of the normal uplink carrier;

selection factor information of the second supplemental uplink carrier;

a Reference Signal Received Power (RSRP) threshold value corresponding to the second supplementary uplink carrier;

an RSRP threshold range corresponding to the second supplemental uplink carrier;

the type of the terminal equipment corresponds to the normal uplink carrier;

the type of the terminal equipment corresponds to the second supplementary uplink carrier;

the corresponding relation between the service type and the normal uplink carrier;

and the service type corresponds to the second supplementary uplink carrier.
The network device of any of claims 63 to 65,

the sending unit is further configured to send second indication information to the terminal device, where the second indication information is used to indicate that the terminal device determines a policy of a carrier for initial access based on the RSRP threshold value.
The network device of claim 66, wherein the determining a policy for a carrier for initial access comprises:

when the RSRP of the serving cell of the terminal equipment is larger than the RSRP threshold value, a first supplementary uplink carrier corresponding to the RSRP threshold value is a candidate carrier for initial access;

or, when the RSRP of the serving cell of the terminal device is not less than the RSRP threshold, the first supplementary uplink carrier corresponding to the RSRP threshold is a candidate carrier for initial access;

or, when the RSRP of the serving cell of the terminal device is smaller than the RSRP threshold, the first supplementary uplink carrier corresponding to the RSRP threshold is a candidate carrier for initial access;

or, when the RSRP of the serving cell of the terminal device is not greater than the RSRP threshold, the first supplementary uplink carrier corresponding to the RSRP threshold is a candidate carrier for initial access.
The network device of claim 65, wherein the selection factor information for the normal uplink carrier is the same as the selection factor information for the second supplemental uplink carrier;

or, when there are at least two second supplemental uplink carriers, the selection factor information of each second supplemental uplink carrier is the same, and the selection factor information of the normal uplink carrier is a difference between 1 and a sum of the selection factor information of all the second supplemental uplink carriers;

or, the selection factor information of the normal uplink carrier and the selection factor information of each second supplemental uplink carrier are independent of each other.
The network device of any one of claims 63 to 68, wherein the first indication information is carried in a radio resource control, RRC, release message;

the first indication information is used for indicating the information of the target carrier of the cell corresponding to the network device initially accessed by the terminal device.
The network device of claim 69, wherein the first indication information is further configured to indicate a valid time of the target carrier; the effective time is the time of the terminal equipment performing initial access based on the target carrier.
The network device according to any one of claims 63 to 68, wherein the first indication information is carried in Downlink Control Information (DCI) sent by the network device;

the first indication information is used for indicating index information of a target carrier for data transmission of the terminal equipment.
The network device of any of claims 63-69, wherein,

the sending unit is further configured to send a third system message to the terminal device, where the third system message carries a correspondence between the index information of the second supplemental uplink carrier and the first supplemental uplink carrier; the corresponding relation is used for the terminal equipment to determine a target carrier corresponding to the index information of the target carrier indicated by the first indication information.
A terminal device comprising a processor and a memory for storing a computer program operable on the processor, wherein the processor is configured to perform the steps of the uplink access method of any of claims 1 to 26 when running the computer program.
A network device comprising a processor and a memory for storing a computer program operable on the processor, wherein the processor is configured to perform the steps of the uplink access method of any of claims 27 to 36 when running the computer program.
A storage medium storing an executable program which, when executed by a processor, implements the uplink access method of any one of claims 1 to 26.
A storage medium storing an executable program which, when executed by a processor, implements the uplink access method of any one of claims 27 to 36.
A computer program product comprising computer program instructions to cause a computer to perform the uplink access method of any of claims 1 to 26.
A computer program product comprising computer program instructions to cause a computer to perform the uplink access method of any of claims 27 to 36.
A computer program for causing a computer to execute the terminal device to execute the uplink access method according to any one of claims 1 to 26.
A computer program for causing a computer to execute the network device to perform the uplink access method of any one of claims 27 to 36.
A chip, comprising: a processor for calling and running a computer program from a memory so that a device in which the chip is installed performs the uplink access method according to any one of claims 1 to 26.
A chip, comprising: a processor for calling and running a computer program from a memory so that a device in which the chip is installed performs the upstream access method according to any one of claims 27 to 36.