CN109803317B - Communication method and device - Google Patents

Abstract

Embodiments of the present application provide a communication method and apparatus, wherein a first uplink carrier or a second uplink carrier is selected as an uplink access carrier based on the measurement and measurement threshold of a downlink reference signal, wherein the first uplink carrier and the second uplink carrier are The uplink carriers respectively correspond to their respective access control parameters; whether to allow access to the network through the uplink access carriers is determined according to the access control parameters corresponding to the uplink access carriers. With the communication method and apparatus, congestion can be avoided.

Description

A communication method and device

technical field

The embodiments of the present application relate to communication technologies, and in particular, to a communication method and apparatus.

Background technique

At present, there are various standards for communication, such as second generation (2G), third generation (3G), fourth generation (4G) communication systems and new radio (New radio, NR) access networks, such as global mobile communication (Global System) of Mobilecommunication (GSM) system, Code Division Multiple Access (CDMA) system, Time Division Multiple Access (TDMA) system, Wideband Code Division Multiple Access (WCDMA), Frequency Division Multiple Access (Frequency Division Multiple Access, FDMA) system, Orthogonal Frequency-Division Multiple Access (OFDMA) system, Single-Carrier FDMA (SC-FDMA) system, General Packet Radio Service (General Packet Radio Service, GPRS) system, Long Term Evolution (Long Term Evolution, LTE) system, Universal Mobile Telecommunications System (UMTS) and new radio access network, wherein the new radio access network allows to provide higher transmission than LTE network The new radio access network is also called 5G network, next-generation communication network, etc.

A traditional cell consists of one downlink carrier and one uplink carrier, and in the conventional cell, the frequencies of the uplink carrier and the downlink carrier are the same or similar.

The current spectrum resources have been difficult to meet the growth of users' demand for capacity. In the case of lack of frequency band resources, high-frequency frequency bands with larger available bandwidths are called candidate frequency bands for 5G systems; at the same time, in order to meet the needs of most users (especially edge users) signal transmission coverage and high communication quality requirements, in the 5G system, it is hoped to use low-frequency frequency bands for uplink transmission.

Since New Radio (NR) deploys a high-frequency cell, the operating frequency band in the high-frequency cell is high and the transmit power of the terminal is low, so that the terminal in the cell edge area can receive the signal of the base station in the cell, but the base station The signal of the terminal in the edge area cannot be received, that is, there is a problem of asymmetric uplink and downlink coverage. In order to solve this problem, an additional lower frequency uplink frequency band can be introduced in addition to the original high frequency uplink frequency band of the cell to send the uplink signal. For the convenience of description, the lower frequency uplink frequency band is called the supplementary uplink frequency band. (supplemental uplink, SUL) carrier or auxiliary uplink carrier, called the high frequency uplink frequency band as the primary uplink (PUL) carrier or non-supplemental uplink (non-SUL) carrier, because the additional lower frequency uplink frequency band has smaller signal attenuation, thus allowing the uplink coverage to be improved, making the uplink and downlink coverage consistent.

When the terminal resides in an area covered by the high frequency uplink frequency band and the lower frequency uplink frequency band, if the terminal receives a paging or the terminal itself needs to initiate a service, network congestion is likely to occur.

SUMMARY OF THE INVENTION

Various aspects of the present application provide various communication methods and communication devices, which can avoid network congestion as much as possible.

A first aspect of the present application provides a communication method, comprising: selecting a first uplink carrier or a second uplink carrier as an uplink access carrier based on a downlink reference signal measurement and measurement threshold, wherein the first uplink carrier and the The second uplink carriers respectively correspond to respective access control parameters; whether to allow access to the network through the uplink access carriers is determined according to the access control parameters corresponding to the uplink access carriers.

In a possible implementation, if the first uplink carrier is selected as the uplink access carrier and it is determined according to the access control parameter corresponding to the first uplink carrier that access through the first uplink carrier is not allowed the network, determine whether to allow access to the network through the second uplink carrier according to the access control parameter corresponding to the second uplink carrier; or,

If the second uplink carrier is selected as the uplink access carrier and it is determined according to the access control parameter corresponding to the second uplink carrier that access to the network through the second uplink carrier is not allowed, then according to the second uplink carrier An access control parameter corresponding to an uplink carrier determines whether to allow access to the network through the first uplink carrier.

In a possible implementation manner, the measurement threshold is acquired from a network device through a broadcast channel or a dedicated channel; or, the measurement threshold is preconfigured.

In a possible implementation manner, the measurement threshold is a threshold that allows selecting the first uplink carrier or the second uplink carrier as the uplink access carrier.

In a possible implementation manner, the downlink reference signal includes a synchronization signal and/or a channel state information reference signal CSI-RS, and the method further includes: receiving configuration information from the network, the configuration information indicating measure the synchronization signal and/or the CSI-RS; and measure the signal indicated by the configuration information according to the configuration information.

Another aspect of the present application provides a communication device, comprising: at least one processor and at least one memory, the at least one memory for storing one or more computer instructions or codes, when the at least one processor runs the One or more computer instructions or codes are used to execute: selecting the first uplink carrier or the second uplink carrier as the uplink access carrier based on the measurement and measurement threshold of the downlink reference signal, wherein the first uplink carrier and the The second uplink carriers respectively correspond to respective access control parameters; whether to allow access to the network through the uplink access carriers is determined according to the access control parameters corresponding to the uplink access carriers.

In a possible implementation manner, the at least one processor is further configured to: if the first uplink carrier is selected as the uplink access carrier and it is determined according to the access control parameter corresponding to the first uplink carrier that no Allow access to the network through the first uplink carrier, then determine whether to allow access to the network through the second uplink carrier according to the access control parameter corresponding to the second uplink carrier; or, if selecting the The second uplink carrier is used as the uplink access carrier, and it is determined according to the access control parameter corresponding to the second uplink carrier that access to the network through the second uplink carrier is not allowed, and then according to the corresponding access control parameters of the second uplink carrier The access control parameter determines whether to allow access to the network through the first uplink carrier.

In a possible implementation manner, the communication apparatus further includes a transceiver, configured to acquire the measurement threshold from a network device through a broadcast channel or a dedicated channel; or, the at least one processor is further configured to preconfigure the measurement threshold. Measurement threshold.

In a possible implementation manner, the measurement threshold is a threshold that allows selecting the first uplink carrier or the second uplink carrier as the uplink access carrier.

In a possible implementation manner, the downlink reference signal includes a synchronization signal and/or a channel state information reference signal CSI-RS, and the communication apparatus further includes: a transceiver configured to receive configuration information from the network, the The configuration information indicates to measure the synchronization signal and/or the CSI-RS; the at least one processor is further configured to measure the signal indicated by the configuration information according to the configuration information.

Another aspect of the present application provides a communication method, comprising: comparing a measurement result of a downlink reference signal with a carrier factor selection threshold, wherein the carrier factor selection threshold is a threshold allowing the use of the carrier selection factor; when the measurement result is greater than or equal to the carrier factor selection threshold, select the first uplink carrier or the second uplink carrier to initiate network access according to the carrier selection factor, where the carrier selection factor is used to indicate the selection of the first uplink carrier or the second uplink carrier. the threshold value of the second uplink carrier.

In one possible implementation, a system broadcast message or a dedicated message is received from the network, the system broadcast message or the dedicated message including the carrier selection factor.

In a possible implementation manner, the carrier factor selection threshold is acquired from a network device through a broadcast channel or a dedicated channel; or, the carrier factor selection threshold is preconfigured.

In a possible implementation manner, the downlink reference signal includes: a synchronization signal and/or a channel state information reference signal CSI-RS, and the method further includes: receiving configuration information from the network, the configuration information indicating a pair of The synchronization signal and/or other CSI-RS are measured; according to the configuration information, the signal indicated by the configuration information is measured.

Another aspect of the present application provides a communication device, comprising: at least one processor and at least one memory, the at least one memory for storing one or more computer instructions or codes, when the at least one processor runs the One or more computer instructions or codes are used to perform: compare the measurement result of the downlink reference signal with the carrier factor selection threshold, wherein the carrier factor selection threshold is a threshold that allows the use of the carrier selection factor; when the measurement result is greater than or equal to the carrier factor selection threshold, select the first uplink carrier or the second uplink carrier to initiate network access according to the carrier selection factor, where the carrier selection factor is used to indicate the selection of the first uplink carrier or the second uplink carrier. the threshold value of the second uplink carrier.

In a possible implementation manner, the apparatus further includes: a transceiver for receiving a system broadcast message or a dedicated message from the network, where the system broadcast message or the dedicated message includes the carrier selection factor.

In a possible implementation manner, the transceiver is further configured to acquire the carrier factor selection threshold from a network device through a broadcast channel or a dedicated channel; or, the processor is further configured to preconfigure the carrier factor selection threshold .

In a possible implementation manner, the downlink reference signal includes: a synchronization signal and/or a channel state information reference signal CSI-RS, the apparatus further includes: a transceiver, configured to receive configuration information from the network, the The configuration information indicates to measure the synchronization signal and/or other CSI-RS; the at least one processor is further configured to measure the signal indicated by the configuration information according to the configuration information.

Another aspect of the present application provides a communication method, including: receiving physical uplink control channel PUCCH resource configuration information of a first uplink carrier or a second uplink carrier from a network, wherein the first uplink carrier and the The second uplink carrier belongs to the same cell; the access is initiated from the uplink carrier corresponding to the PUCCH resource according to the access parameter configuration information corresponding to the uplink carrier.

Another aspect of the present application provides a communication device, comprising: at least one processor and at least one memory, the at least one memory for storing one or more computer instructions or codes, when the at least one processor runs the When one or more computer instructions or codes are used to execute: receiving from the network physical uplink control channel PUCCH resource configuration information of the first uplink carrier or the second uplink carrier, wherein the first uplink carrier and the The second uplink carrier belongs to the same cell; and the access is initiated on the uplink carrier corresponding to the PUCCH resource according to the access parameter configuration information corresponding to the uplink carrier.

Another aspect of the present application provides a computer-readable medium for storing a computer program comprising instructions for performing the method in any possible implementation of any of the above aspects.

Another aspect of the present application provides a computer program product comprising: computer program code, when the computer program code is used by a communication unit, a processing unit or a communication unit of a communication device (eg, a terminal device or a network device) When the transceiver and the processor run, the communication device executes the method in any possible implementation manner of any of the above aspects.

Another aspect of the present application provides a communication chip in which instructions are stored that, when executed on a communication device, cause the communication chip to perform the method in any possible implementation of any of the above aspects.

Another aspect of the present application provides a communication system, which includes the above-mentioned terminal device and network device.

The communication method and communication device described above can avoid network congestion as much as possible.

Description of drawings

FIG. 1 is a schematic structural diagram of a possible radio access network according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a communication system according to an embodiment of the present invention;

3 is a schematic diagram of a communication system provided by another embodiment of the present application;

FIG. 4 is a schematic flowchart of a communication method according to an embodiment of the application;

5 is a schematic flowchart of a communication method according to another embodiment of the present application;

6 is a schematic flowchart of a communication method according to another embodiment of the present application;

FIG. 7 is a schematic flowchart of a communication method according to another embodiment of the present application.

FIG. 8 is a schematic structural diagram of a communication system provided by another embodiment of the present application;

FIG. 9 is a schematic structural diagram of a communication device according to another embodiment of the present application;

FIG. 10 is a schematic structural diagram of a communication apparatus according to another embodiment of the present application.

Detailed ways

Some terms used in this application are described below.

References herein to "first," "second," and similar terms do not denote any order, quantity, or importance, but are merely used to distinguish the various components. Likewise, "a" or "an" and the like do not denote a quantitative limitation, but rather denote the presence of at least one. Words like "connected" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

A "module" referred to herein generally refers to a program or instruction stored in a memory that allows to implement certain functions; a "unit" referred to herein generally refers to a logically The "unit" can be realized by pure hardware, or by a combination of software and hardware.

As used herein, "plurality" refers to two or more. "And/or", which describes the association relationship of the associated objects, means that there can be three kinds of relationships, for example, A and/or B, which can mean that A exists alone, A and B exist at the same time, and B exists alone. The character "/" generally indicates that the associated objects are an "or" relationship.

FIG. 1 shows a schematic structural diagram of a possible radio access network (radio access network, RAN for short) according to an embodiment of the present invention. The RAN includes one or more network devices 20 . The radio access network may be connected to a core network (core network, CN). The network device 20 may be any device with a wireless transceiver function. The network equipment 20 includes, but is not limited to: base stations (eg, base station BS, base station NodeB, evolved base station eNodeB or eNB, base station gNodeB or gNB in the fifth generation 5G communication system, base station in future communication system, base station in WiFi system. access node, wireless relay node, wireless backhaul node), etc. The base station can be: a macro base station, a micro base station, a pico base station, a small base station, a relay station, and the like. Multiple base stations may support a network of one or more technologies mentioned above, or a future evolution network. The core network may support a network of one or more technologies mentioned above, or a future evolution network. The base station may include one or more co-sited or non-co-sited transmission receiving points (TRPs). The network device 20 may also be a wireless controller, a centralized unit (centralized unit, CU), or a distributed unit (distributed unit, DU) in a cloud radio access network (cloud radio access network, CRAN) scenario. The network device can also be a server, a wearable device, or a vehicle-mounted device. The following description will be given by taking the network device 20 as a base station as an example. The multiple network devices 20 may be base stations of the same type, or may be base stations of different types. The base station may communicate with the terminal 10, and may also communicate with the terminal 10 through a relay station. The terminal 10 can support communication with multiple base stations of different technologies. For example, the terminal can support communication with base stations supporting LTE networks, can also support communication with base stations supporting 5G networks, and can also support communication with base stations supporting LTE networks and 5G networks. Dual connectivity for base stations.

A terminal, also known as user equipment (UE), mobile station (MS), mobile terminal (MT), etc., is a device that provides voice and/or data connectivity to users. For example, handheld devices, in-vehicle devices, etc. with wireless connectivity capabilities. At present, some examples of terminals are: mobile phone (mobilephone), tablet computer, notebook computer, PDA, mobile internet device (mobile internet device, MID), wearable device, virtual reality (virtual reality, VR) device, augmented reality ( augmented reality (AR) equipment, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical surgery, and smart grids wireless terminal in transportation safety, wireless terminal in smart city, wireless terminal in smart home, etc.

A network device is a device in a wireless network, such as a radio access network (RAN) node that accesses a terminal to the wireless network. At present, some examples of RAN nodes are: gNB, transmission reception point (TRP), evolved Node B (evolved Node B, eNB), radio network controller (radio network controller, RNC), Node B (Node B, NB), base station controller (BSC), base transceiver station (BTS), home base station (for example, home evolved NodeB, or home Node B, HNB), base band unit (base band unit, BBU) , or a wireless fidelity (wirelessfidelity, Wifi) access point (access point, AP) and the like. In a network structure, a network device may include a centralized unit (centralized unit, CU) node, or a distributed unit (distributed unit, DU) node, or a RAN device including a CU node and a DU node.

The RAN may be a base station access system of a 2G network (ie, the RAN includes a base station and a base station controller), or may be a base station access system of a 3G network (ie, the RAN includes a base station and an RNC), or may be a 4G network The base station access system of the network (that is, the RAN includes the eNB and the RNC), or may be the base station access system of the 5G network. The CN may be the MME and/or the S-GW of the 4G network, or may be the SGSN or GGSN of the 3G network, or may be the next generation core network (NG-Core) of the 5G network.

The gNB generally includes the functions of at least one of the following protocol layers: a radio resource control (Radio Resource Control, RRC) layer, a packet data convergence protocol (Packet Data Convergence Protocol, PDCP) layer, and a radio link layer control (Radio Link Control, RLC) layer, media access control (Media Access Control, MAC) layer and physical layer (Physical Layer, PHY).

The gNB may adopt a centralized unit (Centralized Unit, CU) and a distributed unit (Distributed Unit, DU) architecture, the CU and the DU communicate through wired or wireless, the DU communicates with the terminal through the air interface, and the terminal is in the Different cells under the same or different DUs move.

If the gNB adopts the CU-DU architecture, there are multiple permissible divisions of CU and DU functions, one of which may be: CU includes RRC layer and PDCP layer, DU includes RLC layer, MAC layer and PHY Floor.

An example of an architecture of a communication system shown in FIG. 2, as shown in FIG. 2, a network device in a radio access network RAN is a base station (eg, gNB) with a CU and DU separation architecture. The RAN may be connected to the core network (for example, it may be the core network of LTE, or the core network of 5G, etc.). CU and DU can be understood as the division of the base station from the perspective of logical functions. CUs and DUs can be physically separated or deployed together. The functions of the RAN terminate at the CU. Multiple DUs can share one. One DU can also be connected to multiple CUs (not shown in the figure). The CU and the DU can be connected through an interface, such as an F1 interface. CU and DU can be divided according to the protocol layer of the wireless network. For example, the CU includes the functions of the RRC layer and the PDCP layer, and the DU includes the functions of the RLC layer, the MAC layer and the PHY layer. It can be understood that the division of CU and DU processing functions according to this protocol layer is only an example, and may also be divided in other ways. For example, a CU or DU may be divided into functions with more protocol layers. For example, a CU or DU can also be divided into partial processing functions with a protocol layer. In one design, some functions of the RLC layer and functions of the protocol layers above the RLC layer are placed in the CU, and the remaining functions of the RLC layer and the functions of the protocol layers below the RLC layer are placed in the DU. In another design, the functions of the CU or DU may also be divided according to service types or other system requirements. For example, according to the delay, the functions whose processing time needs to meet the delay requirements are set in the DU, and the functions that do not need to meet the delay requirements are set in the CU. The network architecture shown in Figure 2 can be applied to a 5G communication system, which can also share one or more components or resources with an LTE system. In another design, the CU may also have one or more functions of the core network. One or more CUs can be set centrally or separately. For example, the CU can be set on the network side to facilitate centralized management. The DU can have multiple radio functions, or the radio functions can be set farther away.

As shown in FIG. 3 , an example of an application scenario provided by an embodiment of the present application is shown. As shown in FIG. 3 , the network device 310 is used to connect the terminal 320 to the wireless network. The 310 may be the network device 20 in FIG. 1 or the network device in FIG. 2 , and the terminal 320 may be the terminal 10 in FIG. 1 .

In the SUL configuration, a cell has one downlink carrier and two uplink carriers, and the two uplink carriers have different frequency bands, that is, the coverage ranges are different. The range covered by the uplink carrier of the frequency band, the uplink carrier of the higher frequency band is called the first uplink carrier or the PUL carrier or the non-PUL carrier, and the uplink carrier of the lower frequency band is called the second uplink carrier or auxiliary uplink carrier or SUL carrier, when the terminal 320 resides in the coverage area of the first uplink carrier (that is, close to the central area of the network device 310), the terminal 320 may allow the selection of the first uplink carrier or the first uplink carrier. When the second uplink carrier accesses the network device 310, when the terminal 320 resides in the area ( That is, when the terminal 320 is far away from the edge area of the network device 310 , the terminal 320 accesses the network device 310 through the second uplink carrier.

As shown in FIG. 4 , it is a schematic flowchart of a communication method according to an embodiment of the present application.

In part 401, the first uplink carrier or the second uplink carrier is selected as the uplink access carrier based on the measurement and measurement threshold of the downlink reference signal, wherein the first uplink carrier and the second uplink carrier correspond to their respective access control parameter.

In an implementation manner, when a terminal enters or camps on a cell, the terminal receives carrier configuration information sent by a network device of the cell through a broadcast channel or a dedicated channel, for example, the configuration information includes the first uplink carrier and the second uplink carrier, as well as including access parameters and access control parameters corresponding to the first uplink carrier, and including access parameters and access control parameters corresponding to the second uplink carrier, the first uplink carrier includes access parameters and access control parameters corresponding to the second uplink carrier. An uplink carrier and the second uplink carrier respectively correspond to respective access control parameters, and the access control parameters of the first uplink carrier and the access control parameters of the second uplink carrier may be the same or different from each other. In another embodiment of the present application, the carrier configuration information further includes downlink carrier information.

The measurement threshold is a threshold that allows selecting a specific uplink carrier to access the network, for example, the measurement threshold is a threshold that allows selecting the first uplink carrier or the second uplink carrier as the uplink access carrier, for example, The measurement threshold is a threshold that allows selecting the first uplink carrier to access the network, for example, the measurement threshold is one or more reference values (such as a, or b or other values), can also be a value range (for example [a,b]), in another design of the present application, the measurement threshold can also be judged somewhere within the boundary of the coverage of the first uplink carrier One or more reference values (such as a, or b or other values), or a range of values (such as [a,b]). The size of the measurement threshold is specifically configured by the network device to the terminal or preset in the terminal, which is not limited in this embodiment. In one design, the terminal obtains the measurement threshold from a network device through a broadcast channel or a dedicated channel. In another design, the terminal preconfigures the measurement threshold.

In an implementation manner of the present application, the first uplink carrier and the second uplink carrier belong to the same cell.

In one design, the first uplink carrier may be referred to as a PUL carrier, and the second uplink carrier may be referred to as a supplementary uplink carrier, a SUL carrier, or an enhanced uplink carrier, etc. The names are not limited in this application. The first uplink carrier and the second uplink carrier may have different frequency bands, or may have the same or similar frequency bands. When the frequency band of the first uplink carrier and the frequency band of the second uplink carrier are different, the ranges covered by the first uplink carrier and the second uplink carrier partially overlap. If the frequency band is higher than the frequency band of the second uplink carrier, the range covered by the first uplink carrier is smaller than the range covered by the second uplink carrier, and the range covered by the first uplink carrier is located in the second uplink carrier. Within the coverage area, in the overlapping area, the terminal can either select the first uplink carrier to initiate network access, or select the second uplink carrier to initiate network access. When the frequency band of the first uplink carrier and the frequency band of the second uplink carrier are the same or similar, the ranges covered by the first uplink carrier and the second uplink carrier are the same or substantially the same.

The terminal compares the measurement result of the downlink reference signal with the measurement threshold, and selects the first uplink carrier or the second uplink carrier as the uplink access carrier according to the comparison result, for example, if the measurement result of the downlink reference signal The measurement threshold is satisfied, for example, greater than, equal to, or smaller than the measurement threshold, or the measurement threshold interval is satisfied, and the first uplink carrier is selected as the uplink access carrier. Optionally, if the measurement result of the downlink reference signal does not meet the measurement threshold, for example, is smaller than the measurement threshold, equal to the measurement threshold, or larger than the measurement threshold, or does not meet the measurement threshold interval, select the second uplink. The carrier is used as the uplink access carrier.

Part 402: Determine, according to an access control parameter corresponding to the uplink access carrier, whether to allow access to the network through the uplink access carrier.

The first uplink carrier and the second uplink carrier correspond to respective access control parameters, for example, the access control parameters corresponding to the first uplink carrier and the access control parameters corresponding to the second uplink carrier may be are different from each other, for example, the values of the respective access control parameters corresponding to the first uplink carrier and the second uplink carrier are different from each other, and the access control parameters are used to control whether the corresponding uplink carriers are Allows the terminal to initiate network access.

If the terminal selects the first uplink carrier as the uplink access carrier according to the comparison result and determines, according to the access control parameter corresponding to the first uplink carrier, to allow access to the network, the terminal initiates network access through the access parameter corresponding to the first uplink carrier, and accesses the network; if the terminal selects the first uplink carrier as the uplink according to the comparison result Accessing the carrier and determining according to the access control parameter corresponding to the first uplink carrier that access to the network through the first uplink carrier is not allowed, the terminal does not initiate network access on the first uplink carrier.

If the terminal selects the second uplink carrier as the uplink access carrier according to the comparison result and determines, according to the access control parameter corresponding to the second uplink carrier, to allow access to the network, the terminal initiates network access through the access parameter corresponding to the second uplink carrier, and accesses the network. If the terminal selects the second uplink carrier as the uplink access carrier according to the comparison result and determines according to the access control parameter corresponding to the second uplink carrier that the terminal is not allowed to access the network through the second uplink carrier the network, the terminal does not initiate network access on the second uplink carrier.

Optionally, the terminal also receives an uplink carrier replacement indication from the network device whether to allow the uplink access carrier to be replaced after access is prohibited, for example, the terminal receives from the network device whether to The uplink carrier replacement instruction that allows the uplink access carrier to be replaced after access is prohibited. If the uplink carrier replacement instruction indicates that the terminal is allowed to replace the uplink access carrier after access is prohibited, for example, the uplink carrier replacement instruction is 1, the terminal determines whether network access can be initiated on another uplink carrier after one uplink carrier is prohibited from accessing, and if the uplink carrier replacement instruction indicates that the terminal is not allowed to replace the uplink access after access is prohibited. Incoming carrier, for example, the uplink carrier replacement indication is 0, after the terminal is prohibited from accessing one uplink carrier, the process of determining whether another uplink carrier can initiate network access is not performed. For example, the details are as follows .

If the terminal selects the first uplink carrier as the uplink access carrier according to the comparison result and determines, according to the access control parameter corresponding to the first uplink carrier, that the terminal is not allowed to access the network through the first uplink carrier the network, the terminal determines whether to allow access to the network through the second uplink carrier according to the access control parameter corresponding to the second uplink carrier. The process in which the terminal determines whether to allow access to the network through the second uplink carrier according to the access control parameter corresponding to the second uplink carrier is the same as the access control parameter corresponding to the first uplink carrier by the terminal. The process of parameter determining whether to allow access to the network through the first uplink carrier is basically the same, and will not be repeated here. If the terminal determines to allow access to the network through the second uplink carrier, the terminal initiates network access through the access parameter corresponding to the second uplink carrier; The second uplink carrier accesses the network, and the terminal does not initiate network access. In yet another implementation manner, the terminal may also perform steps 401 and 402 again, that is, re-select the uplink access carrier and determine whether to allow access.

If the terminal selects the second uplink carrier as the uplink access carrier according to the comparison result and determines according to the access control parameter corresponding to the second uplink carrier that the terminal is not allowed to access the network through the second uplink carrier the network, the terminal determines whether to allow access to the network through the first uplink carrier according to the access control parameter corresponding to the first uplink carrier, wherein the terminal determines according to the access control parameter corresponding to the second uplink carrier. The access control parameter determines whether to allow access to the network through the second uplink carrier, and the terminal determines whether to allow access through the first uplink carrier according to the access control parameter corresponding to the first uplink carrier. The process of entering the network is basically the same, and will not be repeated here. If the terminal determines that it is allowed to access the network through the first uplink carrier, the terminal initiates network access through the access parameter corresponding to the first uplink carrier; if the terminal determines that it is not allowed to access the network through the first uplink carrier An uplink carrier accesses the network, and the terminal does not initiate network access. In another implementation manner, the terminal may re-execute steps 401 and 402, that is, re-select and determine the uplink access carrier Whether or not to allow access.

Therefore, when the terminal needs network access in the coverage area of the two uplink carriers, if the terminal cannot initiate network access on one of the uplink carriers, it can be determined again whether it can initiate network access through the other uplink carrier. access, which can not only solve the congestion problem of the same uplink carrier, but also enable the terminal to access the network as much as possible.

Optionally, before the terminal selects the first uplink carrier or the second uplink carrier according to the downlink reference signal measurement and the measurement threshold, the terminal further determines whether its own capability supports dual uplink carriers, that is, Whether the terminal has the ability to support SUL, if the terminal has the ability to support SUL, the terminal selects the first uplink carrier or the second uplink carrier according to the measurement threshold, if the terminal does not With the ability to support SUL, the terminal selects its configured single uplink carrier to determine whether to initiate network access.

In an implementation manner, if the terminal has the capability of supporting SUL, the terminal obtains from the network device whether the current uplink carrier and/or downlink carrier of the cell includes a combination of SUL frequency bands supported by the terminal. If the uplink carrier and/or downlink carrier of the current cell received by the terminal from the network device includes the SUL frequency band combination supported by the terminal, the terminal selects the first uplink carrier or the second uplink carrier according to the measurement threshold Uplink carrier; if the uplink carrier and/or downlink carrier of the current cell received by the terminal from the network device does not include the SUL frequency band combination supported by the terminal. Optionally, if the terminal directly selects the first uplink carrier or the second uplink carrier according to the downlink reference signal measurement result. For example, the combination of SUL frequency bands supported by the terminal is downlink BAND1 + uplink BAND2 + uplink SUL BAND3, but the uplink and downlink configuration of the current cell is: downlink BAND1 + uplink BAND4 + uplink SULBAND3, then the terminal determines that the cell does not support SUL operation.

According to the communication method described above, since the network device configures two uplink carriers for the current cell of the terminal, and the two uplink carriers respectively correspond to different access parameters and different access control parameters, different The terminal can select different uplink carriers to determine whether it can access the network, which can avoid network congestion as much as possible, so that more terminals in the current cell can access the network.

As shown in FIG. 5 , it is a schematic flowchart of a communication method according to another embodiment of the present application.

In part 501, the terminal receives the first uplink carrier and the second uplink carrier and their corresponding access parameters and access control parameters sent by the network device.

When a terminal enters or camps on a cell, the terminal receives carrier configuration information sent by a network device of the cell through a broadcast channel or a dedicated channel, for example, the configuration information includes the first uplink carrier and the second uplink carrier carrier, and access parameters and access control parameters corresponding to the first uplink carrier, and access parameters and access control parameters corresponding to the second uplink carrier, the first uplink carrier and the first uplink carrier The two uplink carriers correspond to respective access control parameters, and the access control parameters of the first uplink carrier and the access control parameters of the second uplink carrier may be the same or different from each other. In another embodiment of the present application, the carrier configuration information further includes downlink carrier information.

The first uplink carrier and the second uplink carrier may belong to the same cell.

The measurement threshold is a threshold that allows selecting a specific uplink carrier to access the network, for example, the measurement threshold is a threshold that allows selecting the first uplink carrier or the second uplink carrier as the uplink access carrier, for example, The measurement threshold is a threshold that allows selecting the first uplink carrier to access the network, for example, the measurement threshold is one or more reference values for judging the boundary of the coverage of the first uplink carrier, or a value interval, in In another embodiment of the present application, the measurement threshold may also be one or more reference values or value ranges for judging somewhere within the coverage boundary of the first uplink carrier, and the size of the measurement threshold is specifically determined by The network device is configured to the terminal or preset on the terminal, which is not limited in this embodiment. In one design, the terminal acquires the measurement threshold from a network device through a broadcast channel or a dedicated channel; or, the terminal preconfigures the measurement threshold. Regarding the measurement threshold, reference may also be made to the relevant descriptions of the foregoing embodiments.

The first uplink carrier may be referred to as a PUL carrier, the second uplink carrier may be referred to as a supplementary uplink carrier or a SUL carrier, and the first uplink carrier and the second uplink carrier may have different frequency bands or have the same or similar frequency bands. When the frequency band of the first uplink carrier and the frequency band of the second uplink carrier are different, the ranges covered by the first uplink carrier and the second uplink carrier partially overlap. If the frequency band is higher than the frequency band of the second uplink carrier, the range covered by the first uplink carrier is smaller than the range covered by the second uplink carrier, and the range covered by the first uplink carrier is located in the second uplink carrier. Within the coverage area, in the overlapping area, the terminal can either select the first uplink carrier to initiate network access, or select the second uplink carrier to initiate network access. When the frequency band of the first uplink carrier and the frequency band of the second uplink carrier are the same or similar, the ranges covered by the first uplink carrier and the second uplink carrier are the same or substantially the same.

The access parameters may include random access channel (random access channel, RACH) resources and sign-in code resources, and the access control parameters may include an access barring factor (ac-BarringFactor) and/or an access barring time (ac-BarringFactor). -BarringTime), in another embodiment of the present application, the access control parameter may further include an access class.

Optionally, the terminal may receive the measurement threshold and the uplink carrier replacement instruction sent by the network device through a broadcast channel or a dedicated channel.

The uplink carrier replacement instruction is used to indicate whether to allow the uplink access carrier to be replaced after access is prohibited. For example, the uplink carrier replacement instruction is 1, indicating that the uplink access carrier is allowed to be replaced after access is prohibited. The replacement indication is 0, which means that it is not allowed to replace the uplink access carrier after access prohibition, and vice versa. Alternatively, if the network device sends an uplink carrier replacement instruction, it means that the uplink access carrier is allowed to be replaced after access barring; if the network device does not send the instruction, it means that the uplink access carrier is not allowed to be replaced after access barring, and vice versa.

In part 502, the downlink reference signal is measured, and the uplink carrier is selected according to the measurement result and the measurement threshold.

The terminal measures the downlink reference signal, compares the measurement result of the downlink reference signal with the measurement threshold, and selects the first uplink carrier or the second uplink carrier as the uplink access carrier according to the comparison result. For example, if the measurement result of the downlink reference signal satisfies the measurement threshold, for example, is greater than or equal to the measurement threshold, or is smaller than the measurement threshold, or falls within the measurement threshold interval, the first uplink carrier is selected as the uplink connection into the carrier. Optionally, if the measurement result of the downlink reference signal does not meet the measurement threshold, for example, it is smaller than the measurement threshold, or larger than the measurement threshold, or equal to the measurement threshold, or does not belong to the measurement threshold interval, select the measurement threshold. The second uplink carrier is used as the uplink access carrier.

In another embodiment of the present application, the downlink reference signal may include a synchronization signal and/or a channel state information reference signal (CSI-RS), and the terminal further receives a configuration from the network device information, the configuration information instructs the terminal to measure the synchronization signal and/or the CSI-RS, and the terminal measures the signal indicated by the configuration information according to the configuration information.

In another embodiment of the present application, the configuration information further indicates a measurement object for measuring the synchronization signal and/or CSI-RS, for example, the measurement object includes reference signal receiving power (reference signal receiving power, RSRP), reference signal receiving quality (reference signal receiving power, RSRQ) and/or signal to interference plus noise ratio (signal to interference plus noise ratio, SINR), for example, the configuration information indicates that the RSRP or RSRQ of the synchronization signal is measurement, the terminal measures the RSRP or RSRQ of the synchronization signal. For another example, if the configuration information indicates that the RSRP or RSRQ of the CSI-RS is to be measured, the terminal measures the RSRP or RSRQ of the CSI-RS. RSRQ is measured.

The terminal selects the first uplink carrier or the second uplink carrier as the uplink access carrier according to the comparison result. For example, if the measurement result of the downlink reference signal is greater than or equal to the measurement threshold, the first uplink carrier is selected as the uplink access carrier. access carrier; if the measurement result of the downlink reference signal is less than the measurement threshold, select the second uplink carrier as the uplink access carrier. For example, when the terminal determines that the synchronization signal or the RSRP or RSRQ of the CSI-RS is greater than or equal to the corresponding measurement threshold, the terminal selects the first uplink carrier as the uplink access carrier, and the terminal determines that the synchronization signal When the RSRP or RSRQ is less than the corresponding measurement threshold, the second uplink carrier is selected as the uplink access carrier.

In one design, before the terminal selects the first uplink carrier or the second uplink carrier according to the downlink reference signal measurement and the measurement threshold, the terminal also needs to determine whether its own capability supports dual uplinks carrier, that is, whether the terminal has the ability to support SUL, if the terminal has the ability to support SUL, the terminal selects the first uplink carrier or the second uplink carrier according to the measurement threshold, if the The terminal does not have the ability to support SUL, and the terminal selects its configured single uplink carrier to determine whether to initiate network access.

In one design, if the terminal has the capability of supporting SUL, the terminal also needs to determine whether the uplink carrier and/or downlink carrier of the current cell received from the network device includes the SUL frequency band combination supported by the terminal , if the uplink carrier and/or downlink carrier of the current cell received by the terminal from the network device includes the SUL frequency band combination supported by the terminal, the terminal selects the first uplink carrier or the For the second uplink carrier, if the uplink carrier and/or downlink carrier of the current cell received by the terminal from the network device does not include the SUL frequency band combination supported by the terminal, the terminal can directly Select the first uplink carrier or the second uplink carrier. For example, the SUL frequency band combination supported by the terminal is downlink BAND1+uplink BAND2+uplink SUL BAND3, but the uplink and downlink configuration of the current cell is: downlink BAND1+uplink BAND4+uplink SULBAND3, then the terminal determines that the cell does not support SUL operation.

In part 503, whether to allow initiation of access is determined according to the access control parameter corresponding to the selected uplink carrier.

For example, the terminal determines whether to allow access to the network through the selected uplink carrier according to an access control parameter corresponding to the selected uplink carrier.

For example, the first uplink carrier and the second uplink carrier correspond to respective access control parameters, and the access control parameters include an access barring factor (ac-BarringFactor), wherein the access barring factor is a For indicating a threshold value for judging that access is not allowed, for example, the access prohibition factor indicates a value. Each terminal compares the access random number (random number'rand') generated by the terminal with the access barring factor, and determines whether to initiate network access according to the comparison result. For example, the access random number is greater than or equal to the access barring factor. , indicating that the initiation of network access is allowed, and the access random number is less than the access prohibition factor, indicating that the initiation of network access is not allowed, and vice versa.

For example, the network device is in an area (for example, the cell where the terminal resides or the coverage area of the first uplink carrier or a preset area or the overlapping area covered by the first uplink carrier and the second uplink carrier). ) configure one same access barring factor or two different access barring factors for the first uplink carrier and the second uplink carrier and send it to all terminals in the area, each terminal according to its generated access barring factor The random number is compared with the access prohibition factor corresponding to the selected uplink carrier, and whether network access is allowed to be initiated on the selected uplink carrier is determined according to the comparison result.

For example, the network device configures an area (for example, the cell where the terminal resides or the coverage area of the first uplink carrier or a preset area or the overlapping area covered by the first uplink carrier and the second uplink carrier The access control parameters corresponding to the first uplink carrier and the second uplink carrier in ) both include access barring factors of 0.5, and are sent to all terminals in the area. If the terminal selects the first uplink carrier as the uplink access carrier according to the comparison result in step 402, and the access random number generated by the terminal according to the preset rule or algorithm is 0.6, the terminal determines that Allow network access to be initiated on the first uplink carrier; if the access random number generated by the terminal according to a preset rule or algorithm is 0.4, the terminal determines that network access is not allowed to be initiated on the first uplink carrier ,vice versa. In another embodiment of the present application, if the terminal selects the second uplink carrier as the uplink access carrier according to the comparison result in step 402, the terminal determines whether to allow the second uplink carrier The method for initiating network access is the same as the method for selecting the first uplink carrier to determine whether to allow initiating network access, and details are not repeated here.

In one design, the network device configures an area (for example, the cell where the terminal resides, or the coverage area of the first uplink carrier or a preset area, or the first uplink carrier and the second uplink carrier). The access control parameter corresponding to the first uplink carrier in the overlapped area covered) includes an access prohibition factor of 0.5, and the access control parameter corresponding to the second uplink carrier includes an access prohibition factor of 0.6. and sent to all terminals in the area. If the terminal selects the first uplink carrier as the uplink access carrier according to the comparison result in step 402, and the access random number generated by the terminal according to the preset rule or algorithm is 0.6, the terminal determines that Allow network access to be initiated on the first uplink carrier; if the access random number generated by the terminal according to a preset rule or algorithm is 0.4, the terminal determines that network access is not allowed to be initiated on the first uplink carrier ,vice versa. In another embodiment of the present application, if the terminal selects the second uplink carrier as the uplink access carrier according to the comparison result in step 402, the terminal determines whether to allow the second uplink carrier The method for initiating network access is the same as the method for selecting the first uplink carrier to determine whether to allow initiating network access, and details are not repeated here.

In one design, the access barring factor (ac-BarringFactor) may correspond to an access level, and the access level corresponds to a service type for initiating network access, that is, initiating network access of different service types for different terminals , the network device is configured with different access prohibition factors. Different service types correspond to different access levels, and the service types are used to represent services that initiate network access, such as signaling network access, paged network access, video service network access, voice Network access for services, network access for IP services, network access for emergency services, etc. In another embodiment of the present application, when the terminal needs to initiate network access for a specific service, an access barring factor corresponding to the type of service that initiates network access is determined first, and then the access barring factor is determined according to the access barring factor. Determine whether to allow access.

In one design, the access control parameter includes an access barring factor and an access barring time (ac-BarringTime-r13), where the access barring time is used to indicate the time when access to the network is barred, for example, The access prohibition time may be a timer, and within the running time of the timer, network access is prohibited from being initiated. On the basis of judging that the terminal is allowed to initiate network access according to the access prohibition factor, and then according to the access prohibition time, it is judged whether the current time of the terminal is within the access prohibition time, if the terminal's current time is within the access prohibition time. If the current time is within the access prohibition time, it means that network access is not allowed to be initiated, and if the current time of the terminal is not within the access prohibition time, it means that network access is allowed to be initiated. In another embodiment of the present application, the terminal may also first determine whether the current time of the terminal is within the access prohibition time, and if the current time of the terminal is not within the access prohibition time, The terminal then judges whether to allow access according to the access barring factor.

In part 504, if network access can be initiated, a random access procedure is initiated.

According to the process of judging whether to allow the initiation of network access according to the access control parameter described in the above section 503, if the terminal selects the first uplink carrier as the uplink access carrier according to the comparison result and according to the first The access control parameter corresponding to the uplink carrier determines that access to the network through the first uplink carrier is allowed, then the terminal initiates network access through the access parameter corresponding to the first uplink carrier, and accesses the network ; if the terminal selects the first uplink carrier as the uplink access carrier according to the comparison result and determines that access through the first uplink carrier is not allowed according to the access control parameter corresponding to the first uplink carrier the network, the terminal does not initiate network access on the first uplink carrier.

According to the process of judging whether to allow initiation of network access according to the access control parameters described in the above section 503, if the terminal selects the second uplink carrier as the uplink access carrier according to the comparison result and The access control parameter corresponding to the uplink carrier determines that access to the network through the second uplink carrier is allowed, and the terminal initiates random access through the access parameter corresponding to the second uplink carrier to access the network . If the terminal selects the second uplink carrier as the uplink access carrier according to the comparison result and determines according to the access control parameter corresponding to the second uplink carrier that the terminal is not allowed to access the network through the second uplink carrier the network, the terminal does not initiate network access on the second uplink carrier.

In part 505, if network access cannot be initiated, determine whether to allow initiation of network access according to the access control parameter corresponding to another uplink carrier

Part 505 is optional, for example, the terminal also receives an uplink carrier replacement instruction from the network device whether to allow the uplink access carrier to be replaced after the access is prohibited, for example, the terminal receives from the network device through a broadcast channel or a dedicated channel. The network device receives the uplink carrier replacement instruction whether to allow the uplink access carrier to be replaced after access prohibition, and if the uplink carrier replacement instruction indicates that the terminal is allowed to replace the uplink access carrier after access prohibition, for example, the If the uplink carrier replacement indication is 1, the terminal determines whether it can initiate network access on another uplink carrier after the access of one uplink carrier is prohibited. If the uplink carrier replacement instruction indicates that the terminal is not allowed to access the network Replace the uplink access carrier after being prohibited. For example, the uplink carrier replacement indication is 0. After the terminal is prohibited from accessing one uplink carrier, the process of determining whether another uplink carrier can initiate network access is not performed, for example , as described below.

If the terminal selects the first uplink carrier as the uplink access carrier according to the comparison result and determines, according to the access control parameter corresponding to the first uplink carrier, that the terminal is not allowed to access the network through the first uplink carrier the network, the terminal determines whether to allow access to the network through the second uplink carrier according to the access control parameter corresponding to the second uplink carrier. The process in which the terminal determines whether to allow access to the network through the second uplink carrier according to the access control parameter corresponding to the second uplink carrier is the same as the access control parameter corresponding to the first uplink carrier by the terminal. The process of parameter determining whether to allow access to the network through the first uplink carrier is basically the same, and will not be repeated here. If the terminal determines to allow access to the network through the second uplink carrier, the terminal initiates network access through the access parameter corresponding to the second uplink carrier; Two uplink carriers access the network, and the terminal does not initiate network access. In one design, the terminal may also re-execute steps 502-504, that is, re-select the uplink access carrier and determine whether to allow it access.

If the terminal selects the second uplink carrier as the uplink access carrier according to the comparison result and determines according to the access control parameter corresponding to the second uplink carrier that the terminal is not allowed to access the network through the second uplink carrier the network, the terminal determines whether to allow access to the network through the first uplink carrier according to the access control parameter corresponding to the first uplink carrier, wherein the terminal determines according to the access control parameter corresponding to the second uplink carrier. The access control parameter determines whether to allow access to the network through the second uplink carrier, and the terminal determines whether to allow access through the first uplink carrier according to the access control parameter corresponding to the first uplink carrier. The process of entering the network is basically the same, and will not be repeated here. If the terminal determines that it is allowed to access the network through the first uplink carrier, the terminal initiates network access through the access parameter corresponding to the first uplink carrier; if the terminal determines that it is not allowed to access the network through the first uplink carrier An uplink carrier accesses the network, and the terminal does not initiate network access. In one design, the terminal may also re-execute steps 502-504, that is, re-select the uplink access carrier and determine whether to allow it access.

Therefore, when the terminal needs network access in the coverage area of the two uplink carriers, if the terminal cannot initiate network access on one of the uplink carriers, it can be determined again whether it can initiate network access through the other uplink carrier. access, which can not only solve the congestion problem of the same uplink carrier, but also enable the terminal to access the network as much as possible.

Therefore, according to the communication method described above, since the network device configures two uplink carriers for the current cell of the terminal, and the two uplink carriers respectively correspond to different access parameters and different access control parameters, therefore Different terminals can select different uplink carriers to determine whether they can access the network, which can avoid network congestion as much as possible, so that more terminals in the current cell can access the network.

As shown in FIG. 6 , it is a schematic flowchart of a communication method according to another embodiment of the present application.

In part 601, the measurement result of the downlink reference signal is compared with the carrier factor selection threshold.

When a terminal enters or camps on a cell, the terminal receives carrier configuration information sent by a network device of the cell through a broadcast channel or a dedicated channel, for example, the configuration information includes the first uplink carrier and the second uplink carrier carrier, and access parameters and access control parameters corresponding to the first uplink carrier, and access parameters and access control parameters corresponding to the second uplink carrier, the first uplink carrier and the first uplink carrier The two uplink carriers correspond to respective access control parameters, and the access control parameters of the first uplink carrier and the access control parameters of the second uplink carrier may be the same or different from each other. In one design, the carrier configuration information further includes downlink carrier information.

In one design, the first uplink carrier may be referred to as a PUL carrier, the second uplink carrier may be referred to as a supplementary uplink carrier or a SUL carrier, and the first uplink carrier and the second uplink carrier may both have Different frequency bands can also have the same or similar frequency bands. When the frequency band of the first uplink carrier and the frequency band of the second uplink carrier are different, the ranges covered by the first uplink carrier and the second uplink carrier partially overlap. If the frequency band is higher than the frequency band of the second uplink carrier, the range covered by the first uplink carrier is smaller than the range covered by the second uplink carrier, and the range covered by the first uplink carrier is located in the second uplink carrier. Within the coverage area, in the overlapping area, the terminal can either select the first uplink carrier to initiate network access, or select the second uplink carrier to initiate network access. When the frequency band of the first uplink carrier and the frequency band of the second uplink carrier are the same or similar, the ranges covered by the first uplink carrier and the second uplink carrier are the same or substantially the same.

In one design, the first uplink carrier and the second uplink carrier belong to the same cell.

In one design, the terminal receives the carrier factor selection threshold and the carrier selection factor sent by the network device of the cell through a broadcast channel or a dedicated channel. In another embodiment of the present application, the carrier factor selection threshold and/or the carrier selection factor may be configured on the terminal.

The carrier factor selection threshold is a threshold for allowing the use of a carrier selection factor, and the carrier selection factor is used to indicate a threshold for selecting the first uplink carrier or the second uplink carrier. For example, when the measurement result is greater than or equal to the carrier factor selection threshold, the terminal determines to use the carrier selection factor to select the first uplink carrier or the second uplink carrier; when the measurement result is less than the carrier factor selection threshold , the terminal determines not to use the carrier selection factor to select the first uplink carrier or the second uplink carrier, and the terminal can directly select the first uplink carrier or the second uplink carrier according to the measurement result of the downlink reference signal For the carrier, for example, an uplink carrier with a higher frequency band is selected in the overlapping area of the first uplink carrier and the second uplink carrier, and an uplink carrier with a lower frequency band is selected in a non-overlapping area.

In one design, the downlink reference signal may include a synchronization signal and/or a channel state information reference signal (CSI-RS), the terminal further receives configuration information from the network device, the The configuration information instructs the terminal to measure the synchronization signal and/or the CSI-RS, and the terminal measures the signal indicated by the configuration information according to the configuration information and uses the measurement result as a downlink reference signal measurement result.

In one design, the configuration information further indicates a measurement object for measuring the synchronization signal and/or CSI-RS, for example, the measurement object includes reference signal receiving power (RSRP), reference Signal reception quality (reference signal receiving power, RSRQ) and/or signal to interference plus noise ratio (signal to interference plus noise ratio, SINR), for example, the configuration information indicates that the RSRP or RSRQ of the synchronization signal is measured, then the The terminal measures the RSRP or RSRQ of the synchronization signal. For another example, if the configuration information indicates that the RSRP or RSRQ of the CSI-RS is to be measured, the terminal measures the RSRP or RSRQ of the CSI-RS.

For example, when the terminal determines that the RSRP or RSRQ of the synchronization signal or CSI-RS is greater than or equal to the corresponding carrier factor selection threshold, the terminal determines to use the carrier selection factor to select the first uplink carrier or the second uplink carrier Uplink carrier, when the terminal determines that the RSRP or RSRQ of the synchronization signal is less than the corresponding carrier factor selection threshold, the terminal determines not to use the carrier selection factor to select the first uplink carrier or the second uplink carrier.

In part 802, if the measurement result satisfies the carrier factor selection threshold (for example, greater than or equal to the carrier factor selection threshold), select the first uplink carrier or the second uplink carrier to initiate network access according to the carrier selection factor.

The carrier selection factor is used to indicate a threshold value for selecting the first uplink carrier or the second uplink carrier, and the carrier selection factor indicates a value. For example, the carrier selection factor is used to indicate a threshold value for selecting the first uplink carrier, and each terminal compares the access random number (random number'rand') generated by the terminal with the carrier selection factor, according to The comparison result determines whether to initiate network access on the first uplink carrier. For example, the access random number is greater than or equal to the carrier selection factor, indicating that network access is allowed to be initiated on the first uplink carrier, and the access random number is less than or equal to the carrier selection factor. The carrier selection factor indicates that it is not allowed to initiate network access on the first uplink carrier, and vice versa.

In an implementation manner, the carrier selection factor is used to indicate a threshold value for selecting the second uplink carrier, and each terminal selects the carrier according to an access random number (random number'rand') generated by the terminal and the carrier selection. The factors are compared, and whether to initiate network access on the second uplink carrier is determined according to the comparison result. For example, the access random number is greater than or equal to the carrier selection factor, indicating that network access is allowed to be initiated on the second uplink carrier. If the access random number is smaller than the carrier selection factor, it means that network access is not allowed to be initiated on the second uplink carrier, and vice versa.

For example, the network device is in an area (for example, the cell where the terminal resides or the coverage area of the first uplink carrier or a preset area or the overlapping area covered by the first uplink carrier and the second uplink carrier). ) Configure a carrier selection factor for the first uplink carrier or the second uplink carrier and send it to all terminals in the area, and each terminal compares the access random number generated by it with the carrier selection factor, according to The comparison result determines whether to allow network access to be initiated on the uplink carrier corresponding to the carrier selection factor.

In an implementation manner, if the terminal determines that network access cannot be initiated according to the carrier selection factor of one of the first uplink carrier and the second uplink carrier, if the other uplink carrier is not configured with the carrier selection factor , the terminal may also select another uplink carrier to initiate network access. The terminal determines that network access cannot be initiated according to the carrier selection factor of one uplink carrier of the first uplink carrier and the second uplink carrier, and the other uplink carrier is configured with a carrier selection factor, and the terminal determines again according to the The carrier selection factor of the other uplink carrier determines whether to initiate network access.

For example, the network device configures an area (for example, the cell where the terminal resides or the coverage area of the first uplink carrier or a preset area or the overlapping area covered by the first uplink carrier and the second uplink carrier The carrier selection factor of the first uplink carrier in ) is 0.5, and is sent to all terminals in the area. If the access random number generated by the terminal according to the preset rule or algorithm is 0.6, the terminal determines that it is allowed to initiate network access on the first uplink carrier; if the access random number generated by the terminal according to the preset rule or algorithm is 0.6 If the input random number is 0.4, the terminal determines that it is not allowed to initiate network access on the first uplink carrier, and vice versa. In another embodiment of the present application, if the network device configures the carrier selection factor for the second uplink carrier, the method for determining whether to allow network access on the second uplink carrier by the terminal is the same as selecting the second uplink carrier. The method for determining whether to allow the initiation of network access by the first uplink carrier is the same, which will not be repeated here.

In another implementation manner, before the terminal compares the measurement result of the downlink reference signal with the carrier factor selection threshold, the terminal also needs to determine whether its own capability supports dual uplink carriers, that is, whether the terminal has the capability to support SUL If the terminal has the ability to support SUL, the terminal compares the measurement result of the downlink reference signal with the carrier factor selection threshold and selects the first uplink carrier or the second uplink carrier according to the carrier selection factor. Uplink carrier, if the terminal does not have the capability of supporting SUL, the terminal selects a single uplink carrier configured by the terminal to determine whether to initiate network access.

In an implementation manner, if the terminal has the capability of supporting SUL, the terminal also needs to determine whether the uplink carrier and/or downlink carrier of the current cell received from the network device includes the SUL frequency band supported by the terminal combination. If the uplink carrier and/or downlink carrier of the current cell received by the terminal from the network device includes the SUL frequency band combination supported by the terminal, the terminal selects the first uplink carrier or the first uplink carrier according to the carrier selection factor. Two uplink carriers. Optionally, if the uplink carrier and/or downlink carrier of the current cell received by the terminal from the network device does not include the SUL frequency band combination supported by the terminal, the terminal directly selects according to the downlink reference signal measurement result. the first uplink carrier or the second uplink carrier. For example, if the SUL frequency band combination supported by the terminal is downlink BAND1+uplink BAND2+uplink SUL BAND3, but the current cell's uplink and downlink configuration is: downlink BAND1+uplink BAND4+uplink SUL BAND3, the terminal determines that the cell does not support SUL operation.

The process of judging whether to allow initiating access according to the access control parameter corresponding to the first uplink carrier or the access control parameter corresponding to the second uplink carrier is basically the same as the process in the foregoing embodiment in FIG. 4 or FIG. 5 , here No longer.

Therefore, in the communication method described above, the network device configures two uplink carriers for the current cell of the terminal, and different terminals select different uplink carriers according to the carrier selection factor to initiate network access, so as to prevent all terminals from passing through the same uplink carrier The carrier initiates network access, which can avoid network congestion as much as possible, and allow more terminals in the current cell to access the network.

As shown in FIG. 7 , it is a schematic flowchart of a communication method according to another embodiment of the present application.

Part 701: Receive physical uplink control channel (physical uplink control channel, PUCCH) resource configuration information of the first uplink carrier or the second uplink carrier.

For example, the terminal receives configuration information of a first uplink carrier and a second uplink carrier from a network device, the first uplink carrier and the second uplink carrier belong to the same cell, for example, the terminal uses a broadcast channel or a dedicated channel Receive carrier configuration information sent by a network device of the cell, for example, the configuration information includes the first uplink carrier and the second uplink carrier, and includes access parameters corresponding to the first uplink carrier, and includes Access parameters corresponding to the second uplink carrier. In one design, the carrier configuration information further includes downlink carrier information.

In an implementation manner, the first uplink carrier may be referred to as a PUL carrier, the second uplink carrier may be referred to as a supplementary uplink carrier or a SUL carrier, etc., the first uplink carrier and the second uplink carrier are both It can have different frequency bands, and can also have the same or similar frequency bands. When the frequency band of the first uplink carrier and the frequency band of the second uplink carrier are different, the ranges covered by the first uplink carrier and the second uplink carrier partially overlap. If the frequency band is higher than the frequency band of the second uplink carrier, the range covered by the first uplink carrier is smaller than the range covered by the second uplink carrier, and the range covered by the first uplink carrier is located in the second uplink carrier. Within the coverage area, in the overlapping area, the terminal can either select the first uplink carrier to initiate network access, or select the second uplink carrier to initiate network access.

In an implementation manner, the terminal may measure the downlink reference signal, and send the measurement result to the network device, and the network device determines to send the first uplink carrier or the second uplink carrier according to the measurement result. The PUCCH resource configuration information of the uplink carrier is sent to the terminal.

The downlink reference signal may include a synchronization signal and/or a channel state information reference signal (channel state information reference signal, CSI-RS), and the terminal further receives configuration information from the network device, where the configuration information indicates that the terminal pair The synchronization signal and/or CSI-RS are measured, and the terminal measures the signal indicated by the configuration information according to the configuration information.

Optionally, the configuration information also indicates a measurement object for measuring the synchronization signal and/or CSI-RS, for example, the measurement object includes reference signal receiving power (RSRP), reference signal Receiving quality (reference signal receiving power, RSRQ) and/or signal to interference plus noise ratio (signal to interference plus noise ratio, SINR), for example, the configuration information indicates to measure the RSRP or RSRQ of the synchronization signal, then the The terminal measures the RSRP or RSRQ of the synchronization signal. For another example, if the configuration information indicates that the RSRP or RSRQ of the CSI-RS is to be measured, the terminal measures the RSRP or RSRQ of the CSI-RS.

The network device determines whether the measurement result is greater than or equal to a first threshold and sends the PUCCH resource of the first uplink carrier or the second uplink carrier to the terminal. For example, the network device determines that the measurement result is greater than or equal to a first threshold, the network device configures and sends the PUCCH resource of the first uplink carrier to the terminal, and the network device determines that the measurement result is less than the first threshold. A threshold, the network device configures and sends the PUCCH resource of the second uplink carrier to the terminal. In another embodiment of the present application, the network device determines that the measurement result is greater than or equal to a first threshold, the network device configures and sends the PUCCH resource of the second uplink carrier to the terminal, and the network The device determines that the measurement result is less than the first threshold, and the network device configures and sends the PUCCH resource of the first uplink carrier to the terminal.

In an implementation manner, the network device determines to send the PUCCH resource of the first uplink carrier or the second uplink carrier to the terminal. For example, the terminal compares the load of the first uplink carrier and the load of the second uplink carrier, configures a PUCCH resource for the uplink carrier with a smaller load, and sends it to the terminal. In an implementation manner, if the load of the first uplink carrier is less than its corresponding load threshold and the load of the second uplink carrier is greater than or equal to its corresponding load threshold, the network device configures and sends the The PUCCH resource of the first uplink carrier is given to the terminal. When the load of the first uplink carrier is greater than or equal to its corresponding load threshold and the load of the second uplink carrier is less than its corresponding load threshold, the network device Configure and send the PUCCH resource of the second uplink carrier to the terminal.

In an implementation manner, for example, the network device determines whether the measurement result is greater than or equal to a first threshold and further determines to send the first uplink carrier according to the load of the first uplink carrier or the second uplink carrier Or the PUCCH resource of the second uplink carrier is given to the terminal. For example, according to the above description, when the network device selects one of the first uplink carrier and the second uplink carrier according to the measurement result, then according to the load of the selected uplink carrier, the corresponding The load threshold determines whether to send the PUCCH resource of the selected uplink carrier. For example, when the load of the selected uplink carrier is greater than or equal to its corresponding load threshold, the PUCCH resource of the selected uplink carrier is not sent to the terminal. The load of the selected uplink carrier is less than its corresponding load threshold, and the PUCCH resource of the selected uplink carrier is sent to the terminal.

702. Initiate access on the uplink carrier corresponding to the PUCCH resource according to the access parameter configuration information corresponding to the uplink carrier.

For example, if the terminal receives the PUCCH resource configuration information corresponding to the first uplink carrier, the terminal performs access according to the access parameters corresponding to the first carrier; if the terminal receives the second uplink carrier corresponding PUCCH resource, the terminal performs access according to the access parameter corresponding to the second carrier.

FIG. 8 provides a schematic structural diagram of a terminal. The terminal (eg, UE) can be applied to the systems shown in FIGS. 1 to 3 to implement the corresponding functions of the terminal in the foregoing embodiments. For details, refer to the descriptions in the foregoing embodiments.

For convenience of explanation, FIG. 8 only shows the main components of the terminal. As shown in FIG. 8 , the terminal 10 includes a processor, a memory, a control circuit, an antenna, and an input and output device. The processor is mainly used to process communication protocols and communication data, control the entire terminal, execute software programs, and process data of the software programs. For example, the processor may implement the corresponding functions of the terminal in FIG. 1 to FIG. 7 . The memory is mainly used to store software programs and data. The radio frequency circuit is mainly used for the conversion of the baseband signal and the radio frequency signal and the processing of the radio frequency signal. Antennas are mainly used to send and receive radio frequency signals in the form of electromagnetic waves. For example, the processor may control and implement the transceiver-related functions of the terminal shown in FIGS. 1 to 7 through the radio frequency circuit and the antenna. Input and output devices, such as touch screens, display screens, and keyboards, are mainly used to receive data input by users and output data to users.

When the user equipment is powered on, the processor can read the software program in the storage unit, interpret and execute the instructions of the software program, and process the data of the software program. When data needs to be sent wirelessly, the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit. The radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal through the antenna in the form of electromagnetic waves. When data is sent to the user equipment, the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, which converts the baseband signal into data and processes the data.

Those skilled in the art can understand that, for the convenience of description, FIG. 8 only shows one memory and a processor. In an actual terminal, there may be multiple processors and memories. The memory may also be referred to as a storage medium or a storage device, etc., which is not limited in this embodiment of the present invention.

As an optional implementation manner, the processor may include a baseband processor and a central processing unit. The baseband processor is mainly used to process communication protocols and communication data, and the central processing unit is mainly used to control the entire user equipment, execute A software program that processes data from the software program. The processor in FIG. 8 integrates the functions of the baseband processor and the central processing unit. Those skilled in the art can understand that the baseband processor and the central processing unit may also be independent processors, interconnected by technologies such as a bus. Those skilled in the art can understand that the user equipment may include multiple baseband processors to adapt to different network standards, the user equipment may include multiple central processors to enhance its processing capability, and various components of the user equipment may be connected through various buses. The baseband processor may also be expressed as a baseband processing circuit or a baseband processing chip. The central processing unit can also be expressed as a central processing circuit or a central processing chip. The function of processing the communication protocol and communication data may be built in the processor, or may be stored in the storage unit in the form of a software program, and the processor executes the software program to realize the baseband processing function.

In this embodiment of the present invention, an antenna and a control circuit with a transceiver function can be regarded as the transceiver unit 11 of the terminal 10, and a processor with a processing function can be regarded as the processing unit 12 of the terminal 10. As shown in FIG. 8 , the UE10 includes a transceiver unit 11 and a processing unit 12 . The transceiving unit may also be referred to as a transceiver, a transceiver, a transceiving device, or the like. Optionally, the device used for realizing the receiving function in the transceiver unit 11 may be regarded as a receiving unit, and the device used for realizing the sending function in the transceiver unit 11 may be regarded as a sending unit, that is, the transceiver unit 11 includes an example of a receiving unit and a sending unit. Attributes, the receiving unit may also be called a receiver, a transceiver, a receiving circuit, etc., and the sending unit may be called a transmitter, a transmitter or a transmitting circuit, and the like.

Please refer to FIG. 9 , which is another schematic structural diagram of a communication apparatus provided by the present application, and the communication apparatus is used to implement the operations of the terminal in the above embodiment. As shown in FIG. 9 , the communication device includes: an antenna 910 , a radio frequency device 920 , and a baseband device 930 . The antenna 910 is connected to the radio frequency device 920 . In the downlink direction, the radio frequency device 920 receives information sent by a network device (eg, a base station) through the antenna 910, and sends the information sent by the network device to the baseband device 930 for processing. In the uplink direction, the baseband device 930 processes the information of the terminal and sends it to the radio frequency device 920 , and the radio frequency device 920 processes the information of the terminal and sends it to the network device through the antenna 910 .

The baseband device 930 may include a modulation and demodulation subsystem, which is used for processing data at various communication protocol layers. It may also include a central processing subsystem, which is used to realize the processing of the terminal operating system and the application layer. In addition, other subsystems may also be included, such as a multimedia subsystem, a peripheral subsystem, etc., wherein the multimedia subsystem is used to realize the control of the terminal camera, screen display, etc., and the peripheral subsystem is used to realize the connection with other devices. The modulation and demodulation subsystem may be an independently provided chip, and optionally, the communication device may be implemented on the modulation and demodulation subsystem.

In one implementation, each unit shown in FIG. 9 is implemented in the form of a processing element scheduler, for example, a certain subsystem of the baseband device 930, such as a modulation and demodulation subsystem, where the modulation and demodulation subsystem includes a processing element 931 and a storage element 932, the processing element 931 calls the program stored in the storage element 932 to execute the method executed by the terminal in the above method embodiments. In addition, the baseband device 930 may further include an interface 933 for exchanging information with the radio frequency device 920 .

In another implementation, each unit shown in FIG. 9 may be one or more processing elements configured to implement the above method executed by the terminal, and these processing elements are provided on a certain subsystem of the baseband device 930, such as On the modulation and demodulation subsystem, the processing elements here may be integrated circuits, such as: one or more ASICs, or, one or more DSPs, or, one or more FPGAs. These integrated circuits can be integrated together to form chips.

For example, each unit shown in FIG. 7 may be integrated together and implemented in the form of a system-on-a-chip (SOC), for example, the baseband device 930 includes an SOC chip for implementing the above method. The processing element 931 and the storage element 932 may be integrated in the chip, and the above terminal execution method may be implemented in the form of the stored program of the storage element 932 being invoked by the processing element 931; or, at least one integrated circuit may be integrated in the chip to realize the above The method for terminal execution; or, in combination with the above implementation manners, the functions of some units are implemented in the form of calling programs by processing elements, and the functions of some units are implemented in the form of integrated circuits.

In conclusion, the above communication apparatus for a terminal includes at least one processing element and a storage element, wherein the at least one processing element is configured to execute the method performed by the terminal provided by the above method embodiments. The processing element may execute part or all of the steps performed by the terminal in the above method embodiments in the first manner: that is, by executing the program stored in the storage element; or in the second manner: that is, through the integration of hardware in the processor element The logic circuit performs some or all of the steps performed by the terminal in the above method embodiments by combining instructions; of course, some or all of the steps performed by the terminal in the above method embodiments can also be performed by combining the first method and the second method.

The processing elements here are the same as those described above, and may be a general-purpose processor, such as a central processing unit (Central Processing Unit, CPU), or may be one or more integrated circuits configured to implement the above methods, such as: one or more specific integrated circuits A circuit (Application Specific Integrated Circuit, ASIC), or, one or more microprocessors (digital singnal processor, DSP), or, or, one or more Field Programmable Gate Array (Field Programmable Gate Array, FPGA), etc.

The storage element may be one memory or a collective term for multiple storage elements.

The baseband device 930 may perform the related processing procedures of FIG. 4 to FIG. 7 . The functions of the processing unit 12 in FIG. 8 may be implemented by the baseband device 930 to execute the relevant functions of the processing unit 12 . The radio frequency device 920 may perform the related transceiving processes in FIG. 4 to FIG. 7 , or the transceiver unit 11 in FIG.

An embodiment of the present application further provides a communication apparatus, where the communication apparatus is configured to execute the method described in any of the foregoing embodiments. The communication device includes the means necessary to perform the above-described method embodiments. The means can be implemented by software and/or hardware. The communication apparatus may be a network device or a terminal in FIG. 1 and FIG. 2 .

FIG. 10 is a schematic structural diagram of a communication device. The communication apparatus 20 may be the network device 20 in FIG. 1 and FIG. 2 . The network device 20 may be used to implement the methods described in the foregoing method embodiments. For details, refer to the descriptions in the foregoing method embodiments.

The communication apparatus 20 includes one or more processors 21, and the processors 21 may be general-purpose processors or special-purpose processors. For example, it may be a baseband processor, or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control communication devices (eg, base stations, baseband chips, DUs, or CUs, etc.), execute software programs, and process data of software programs .

In an optional design, the processor 21 may also include instructions 23, and the instructions may be executed on the processor, so that the communication apparatus 20 performs the functions of the network equipment (eg, base station) in the foregoing method embodiments. . For example, the above-mentioned various thresholds (eg, measurement thresholds) and configuration messages (eg, access control parameters) are configured for the terminal.

In yet another possible design, the communication apparatus 20 may include a circuit, and the circuit may implement the function of sending or receiving in the foregoing method embodiments.

Optionally, the communication apparatus 20 may include one or more memories 22 on which instructions 24 are stored, and the instructions may be executed on the processor, so that the communication apparatus 20 executes the above method embodiments method described in . Optionally, data may also be stored in the memory. Instructions and/or data may also be stored in the optional processor. The processor and the memory can be provided separately or integrated together.

Optionally, the communication device 20 may further include a transceiver 25 and/or an antenna 26 . The processor 21 may be called a processing unit, and controls the communication device (terminal or base station). The transceiver 25 may be referred to as a transceiver unit, a transceiver, a transceiver circuit, or a transceiver, etc., and is used to implement the transceiver function of the communication device through the antenna 26 .

The processors and transceivers described in this application may be implemented in integrated circuits (ICs), analog ICs, radio frequency integrated circuits (RFICs), mixed-signal ICs, application specific integrated circuits (ASICs), printed circuit boards (printed circuit boards) circuit board, PCB), electronic equipment, etc. The processor and transceiver can also be fabricated using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), nMetal-oxide-semiconductor (NMOS), P-type Metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (Bipolar Junction Transistor, BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

The communication apparatus described in this application may be a stand-alone device or may be part of a larger device. For example the device may be:

(1) Independent integrated circuit IC, or chip;

(2) a set with one or more ICs, optionally, the IC set may also include storage components for storing data and/or instructions;

(3) ASIC, such as modem (MSM);

(4) Modules that can be embedded in other equipment;

(5) Receivers, cellular telephones, wireless devices, handsets, mobile units, network equipment, etc.;

(6) Others, etc.

In the implementation process, each step of the above-mentioned method can be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software. The steps of the methods disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware processor, or executed by a combination of hardware and software modules in the processor. The software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art. The storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware. To avoid repetition, detailed description is omitted here. Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may use different methods for implementing the described functionality for each particular application, but such implementations should not be considered beyond the scope of this application.

It should be understood that, in the various embodiments of the present application, the size of the sequence numbers of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, and should not be used in the embodiments of the present application. Implementation constitutes any limitation.

Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may use different methods for implementing the described functionality for each particular application, but such implementations should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are only illustrative. For example, the division of the unit is only a logical function allowable division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.

The unit described as a separate component may or may not be physically separated, and the component displayed as a unit may or may not be a physical unit, that is, it may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, each function permitting unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.

In the above-mentioned embodiments, it may be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented in software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions (also sometimes referred to as computer programs). When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present invention are generated. The computer may be a general purpose computer, special purpose computer, computer network, or other programmable device. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be downloaded from a website site, computer, server, or data center Transmission to another website site, computer, server, or data center is by wire (eg, coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (eg, infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that includes an integration of one or more available media. The usable media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, DVD), or semiconductor media (eg, Solid State Disk (SSD)), among others.

In this application, "threshold" may refer to a threshold value (boundary value), or a threshold interval (or a threshold range). The threshold-related comparison involved in this application may be to determine whether the threshold is met, for example, it may be greater than the boundary value, less than the boundary value, equal to the boundary value, greater than or equal to the boundary value, less than or equal to the boundary value, or within the threshold interval, etc.

The above description is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art who is familiar with the technical scope disclosed in the present application can easily think of changes or substitutions, which should cover within the scope of protection of this application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (16)

1. a communication method, is characterized in that, comprises: The first uplink carrier or the second uplink carrier is selected as the uplink access carrier based on the measurement and measurement threshold of the downlink reference signal, wherein the first uplink carrier and the second uplink carrier correspond to their respective access control parameters, The access control parameter includes an access barring factor and/or an access barring time, the access barring factor is used to indicate a threshold value for not allowing access to the network, and the access barring time is used to indicate that access is barred The time of the network; the access prohibition factor corresponds to the access level, the access level corresponds to the service type that initiates network access, different service types correspond to different access prohibition factors, and the service type represents the initiation of network access Business; Whether to allow access to the network through the uplink access carrier is determined according to the access control parameter corresponding to the uplink access carrier. 2. The method of claim 1, wherein the method further comprises: If the first uplink carrier is selected as the uplink access carrier and it is determined according to the access control parameter corresponding to the first uplink carrier that access to the network through the first uplink carrier is not allowed, then according to the first uplink carrier The access control parameter corresponding to the second uplink carrier determines whether to allow access to the network through the second uplink carrier; or, If the second uplink carrier is selected as the uplink access carrier and it is determined according to the access control parameter corresponding to the second uplink carrier that access to the network through the second uplink carrier is not allowed, then according to the second uplink carrier An access control parameter corresponding to an uplink carrier determines whether to allow access to the network through the first uplink carrier. 3. The method of claim 1, wherein the method further comprises: The measurement threshold is acquired from the network device through a broadcast channel or a dedicated channel; or, the measurement threshold is preconfigured. 4. The method according to any one of claims 1-3, wherein the measurement threshold is a threshold allowing selection of the first uplink carrier or the second uplink carrier as the uplink access carrier. 5. The method according to any one of claims 1-3, wherein the downlink reference signal comprises a synchronization signal and/or a channel state information reference signal CSI-RS, and the method further comprises: receiving configuration information from the network, the configuration information indicating that the synchronization signal and/or CSI-RS are to be measured; According to the configuration information, the signal indicated by the configuration information is measured. 6. The method according to claim 1, wherein before the first uplink carrier or the second uplink carrier is selected as the uplink access carrier based on the measurement and measurement threshold of the downlink reference signal, the method further comprises: comparing the measurement result of the downlink reference signal with a carrier factor selection threshold, wherein the carrier factor selection threshold is a threshold allowing the use of the carrier selection factor; When the measurement result is greater than or equal to the carrier factor selection threshold, select the first uplink carrier or the second uplink carrier to initiate network access according to the carrier selection factor, where the carrier selection factor is used to indicate the selection of the first uplink carrier The threshold value of the uplink carrier or the second uplink carrier. 7. The method of claim 6, wherein the method further comprises: A system broadcast message or dedicated message is received from the network, the system broadcast message or dedicated message including the carrier selection factor. 8. The method of claim 6, wherein the method further comprises: acquiring the carrier factor selection threshold from a network device through a broadcast channel or a dedicated channel; or, preconfiguring the carrier factor selection threshold. 9. A communication device, comprising: at least one processor and at least one memory, the at least one memory for storing one or more computer instructions or codes, when the at least one processor runs the one or more computer instructions or codes to execute: The first uplink carrier or the second uplink carrier is selected as the uplink access carrier based on the measurement and measurement threshold of the downlink reference signal, wherein the first uplink carrier and the second uplink carrier correspond to their respective access control parameters, The access control parameter includes an access barring factor and/or an access barring time, the access barring factor is used to indicate a threshold value for not allowing access to the network, and the access barring time is used to indicate that access is barred The time of the network; the access prohibition factor corresponds to the access level, the access level corresponds to the service type that initiates network access, different service types correspond to different access prohibition factors, and the service type represents the initiation of network access Business; Whether to allow access to the network through the uplink access carrier is determined according to the access control parameter corresponding to the uplink access carrier. 10. The communication apparatus of claim 9, wherein the at least one processor is further configured to: If the first uplink carrier is selected as the uplink access carrier and it is determined according to the access control parameter corresponding to the first uplink carrier that access to the network through the first uplink carrier is not allowed, then according to the first uplink carrier The access control parameter corresponding to the second uplink carrier determines whether to allow access to the network through the second uplink carrier; or, If the second uplink carrier is selected as the uplink access carrier and it is determined according to the access control parameter corresponding to the second uplink carrier that access to the network through the second uplink carrier is not allowed, then according to the second uplink carrier An access control parameter corresponding to an uplink carrier determines whether to allow access to the network through the first uplink carrier. 11. The communication apparatus of claim 10, wherein the communication apparatus further comprises a transceiver for obtaining the measurement threshold from a network device through a broadcast channel or a dedicated channel; or, The at least one processor is further configured to preconfigure the measurement threshold. 12. The communication device according to any one of claims 9-11, wherein the measurement threshold is a threshold that allows selecting the first uplink carrier or the second uplink carrier as the uplink access carrier. 13. The communication apparatus according to any one of claims 9-11, wherein the downlink reference signal comprises a synchronization signal and/or a channel state information reference signal CSI-RS, and the communication apparatus further comprises: a transceiver, configured to receive configuration information from the network, the configuration information indicating that the synchronization signal and/or the CSI-RS are to be measured; The at least one processor is further configured to measure the signal indicated by the configuration information according to the configuration information. 14. The communication device according to claim 10, before the at least one processor performs the measurement based on the downlink reference signal and the measurement threshold selects the first uplink carrier or the second uplink carrier as the uplink access carrier, is further configured to perform : comparing the measurement result of the downlink reference signal with a carrier factor selection threshold, wherein the carrier factor selection threshold is a threshold allowing the use of the carrier selection factor; When the measurement result is greater than or equal to the carrier factor selection threshold, select the first uplink carrier or the second uplink carrier to initiate network access according to the carrier selection factor, where the carrier selection factor is used to indicate the selection of the first uplink carrier The threshold value of the uplink carrier or the second uplink carrier. 15. The apparatus of claim 14, wherein the apparatus further comprises: A transceiver for receiving a system broadcast message or a dedicated message from the network, the system broadcast message or dedicated message including the carrier selection factor. 16. The apparatus of claim 14, wherein the apparatus further comprises: a transceiver for obtaining the carrier factor selection threshold from a network device through a broadcast channel or a dedicated channel; or the processor is further configured to The carrier factor selection threshold is preconfigured.

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