CN114040513B - Link establishment method, device, terminal equipment and computer readable storage medium - Google Patents

Abstract

The present application relates to a link establishment method, device, terminal equipment and computer-readable storage medium. The baseband processor in the terminal equipment receives the instruction information sent by the network equipment; based on the above instruction information, the baseband processor performs link resource module Parameter configuration, establishing the first link; wherein, the link resource module is a module related to establishing the first link in the terminal device. Using the above method can avoid the signaling interaction between the digital baseband system and the system where the other link resource modules are located during the link establishment process, reducing the establishment delay of the first link; further, the terminal device completes the process through the baseband processor The parameter configuration of other link resource modules enables link resource modules such as radio frequency modules to be simplified to pure hardware circuits, reduces the complexity of the circuit structure and the size of other link resource modules, and improves system integration.

Description

Link establishment method, device, terminal device and computer-readable storage medium

technical field

The present application relates to the technical field of communications, and in particular to a link establishment method, device, terminal equipment and computer-readable storage medium.

Background technique

In a 5G system, in order to improve uplink throughput and reduce latency, terminal devices can perform uplink switching in different scenarios. For example, the uplink of the terminal device in one of the scenarios may include the uplink of the N3 frequency band and the uplink of the N78 frequency band. When switching to another scenario, the uplink of the terminal device may include two The uplink of the N78 frequency band. The bandwidth of the N78 frequency band is wider, which can bring higher uplink throughput.

When a terminal device performs uplink switching in different scenarios, it needs to reassign or reset all transmission paths, which include radio frequency units, baseband units, and antenna front-end units. The above-mentioned link switching process involves the interaction between multiple system units, resulting in a long link switching delay and affecting system performance.

Contents of the invention

Embodiments of the present application provide a link establishment method, device, terminal equipment, and computer-readable storage medium, which can reduce link establishment delay.

In the first aspect, a method for establishing a link is applied to a baseband processor in a terminal device, including:

The baseband processor receives instruction information sent by the network device; the instruction information is used to instruct the terminal device to establish the first link;

The baseband processor configures the parameters of the link resource module to establish the first link; the link resource module is a module related to the establishment of the first link in the terminal device.

In the second aspect, a link establishment device is applied to a baseband processor in a terminal device, including:

A receiving module, configured to receive instruction information sent by the network device; the instruction information is used to instruct the terminal device to establish the first link;

The configuration module is configured to configure parameters of the link resource module to establish the first link; the link resource module is a module related to the establishment of the first link in the terminal device.

In a third aspect, a terminal device includes a memory and a processor, wherein a computer program is stored in the memory, and when the computer program is executed by the processor, the processor is made to execute the steps of the method in the first aspect.

In a fourth aspect, a computer-readable storage medium stores a computer program thereon, wherein the computer program implements the steps of the method in the first aspect when executed by a processor.

The above-mentioned link establishment method, device, terminal equipment and computer-readable storage medium, the baseband processor in the terminal equipment receives the indication information sent by the network equipment; based on the above indication information, the baseband processor configures the parameters of the link resource module, and establishes The first link; wherein, the aforementioned link resource module is a module related to establishing the first link in the terminal device. Since the receiving network device in the terminal device sends the instruction information for establishing the first link, and the steps such as configuring the parameters of the link resource module are all completed in the baseband processor, the establishment process of the first link in this application can be avoided. The signaling interaction between the digital baseband system and the system where other link resource modules are located reduces the establishment delay of the first link; further, the terminal device completes the parameter configuration of other link resource modules through the baseband processor, so that Link resource modules such as radio frequency modules can be simplified to pure hardware circuits, reducing circuit structure complexity and reducing the size of other link resource modules, improving system integration.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present application. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

FIG. 1 is an application environment diagram of a link establishment method in an embodiment of the present application;

FIG. 2 is a flowchart of a link establishment method in an embodiment of the present application;

FIG. 3 is a schematic diagram of a hardware link architecture in an embodiment of the present application;

FIG. 4 is a flowchart of a link establishment method in an embodiment of the present application;

FIG. 5 is a schematic diagram of receiving indication information in an embodiment of the present application;

FIG. 6 is a schematic diagram of link switching in an embodiment of the present application;

FIG. 7 is a flowchart of a link establishment method in an embodiment of the present application;

FIG. 8 is a flowchart of a link establishment method in an embodiment of the present application;

FIG. 9 is a flowchart of a link establishment method in an embodiment of the present application;

FIG. 10 is a structural block diagram of a link establishment device in an embodiment of the present application;

FIG. 11 is a structural block diagram of a link establishment device in an embodiment of the present application;

FIG. 12 is a structural block diagram of a link establishment device in an embodiment of the present application;

Fig. 13 is a schematic structural diagram of a terminal device in an embodiment of the present application.

Detailed ways

In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

It can be understood that the terms "first", "second" and the like used in this application may be used to describe various elements herein, but these elements are not limited by these terms. These terms are only used to distinguish one element from another element. For example, a first resource module could be termed a second resource module, and, similarly, a second resource module could be termed a first resource module, without departing from the scope of the present application. Both the first resource module and the second resource module are resource modules, but they are not the same resource module.

Fig. 1 is a schematic diagram of an application environment of a link establishment method in an embodiment. As shown in FIG. 1 , the application environment includes a communication-connected terminal device 102 and a network device 104 . The above-mentioned network device 104 may be any device with wireless transceiver function, including but not limited to: base station NodeB, evolved base station eNodeB, base station in the fifth generation (the fifth generation, 5G) communication system, and base station in the future communication system Or network devices, access nodes in WiFi systems, wireless relay nodes, wireless backhaul nodes, etc. The network device may also be a wireless controller in a cloud radio access network (cloud radio access network, CRAN) scenario. The network device may also be a small station, a transmission reference point (transmission reference point, TRP), a road side unit (road side unit, RSU), and the like. The embodiments of the present application do not limit the specific technology and specific device form adopted by the foregoing network devices. The above-mentioned terminal device 102 may be a device with a wireless transceiver function, and may be, but not limited to, a handheld, wearable, or vehicle-mounted device. The terminal device can be a mobile phone, a tablet computer, a computer with a wireless transceiver function, a virtual reality (virtual reality, VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal in industrial control (industrial control), wireless Wireless terminals in self-driving, wireless terminals in remote medical, wireless terminals in smart grid, wireless terminals in transportation safety, smart city ), a wireless terminal in a smart home (smarthome), and the like. The embodiments of the present application do not limit the application scenarios.

Fig. 2 is a flowchart of a link establishment method in an embodiment. The method for establishing a link in this embodiment is described by taking the terminal device running on the terminal device in FIG. 1 as an example. As shown in Figure 2, the above method package:

S101. The baseband processor receives indication information sent by a base station; the indication information is used to instruct a terminal device to establish a first link.

The aforementioned baseband processor may be a processor in a digital baseband system. The above-mentioned digital baseband system may be a system that performs signal modulation and demodulation functions in terminal equipment. The above-mentioned digital baseband system may include a plurality of baseband modules, and the above-mentioned baseband module may be an uplink digital channel or a downlink digital channel; the above-mentioned uplink digital channel may send a digital baseband signal to the radio frequency module, and process the digital baseband signal through the radio frequency module After that, it is sent to the network device by the antenna. The above-mentioned downlink digital channel can receive the downlink data sent by the radio frequency module, and demodulate the downlink data.

The above-mentioned baseband processor can demodulate the downlink data sent by the network device, and obtain the indication information sent by the network device. The above indication information may be sent through downlink control signaling (Downlink Control Information, DCI for short).

The foregoing indication information may be used to instruct the terminal device to establish the first link. Wherein, the above-mentioned first link may be an uplink or a downlink, which is not limited here. The foregoing first link may include one link channel, or may include multiple link channels, which is not limited here. The above-mentioned first link can support 4G/5G dual connectivity (EUTRA-NRDual Connectivity, referred to as ENDC), can also support 5G/5G dual connectivity (NR-NR Dual Connectivity, referred to as NNDC), and can also support supplementary uplink (Supplementary Uplink, SUL for short) combined communication connections; the communication scenarios supported by the above-mentioned first link are not limited here. Optionally, the foregoing first link may be used to implement carrier aggregation (Carrier Aggregation, CA for short).

After registering with the network, the terminal device may receive the instruction information sent by the network device to establish the first link; or, the above terminal device may receive the above instruction information when the link connection with the network device has been established, so as to establish the first link. The current link is switched to the first link. That is to say, the above indication information may be used to instruct the terminal device to create a first link, or to instruct the terminal device to switch the current link to the first link. The network device may determine whether to send indication information according to the service requirements of the terminal device, so as to instruct the terminal device to perform link switching.

The above indication information may include the carrier information of the first link to be established, the link identifier of the first link, the communication scene identifier corresponding to the first link, and the corresponding The communication frequency band identifier of , and the content in the above indication information is not limited here. The above-mentioned carrier information of the first link may include a center frequency point corresponding to the first link, link bandwidth, subcarrier spacing, and the like. Taking the first link used for uplink carrier aggregation in the NR system as an example, the above carrier aggregation can support multiple scenarios, as shown in the following table:

scene number scene description Scenario A N78 single carrier single stream Scenario B N78 single carrier dual stream Scenario C N3 single carrier single stream Scenario D N78 single flow + N3 single flow

Among them, the above-mentioned N78 is a frequency band of 3.3GHz-3.8GHz, and the above-mentioned N3 is a frequency band of 1710MHz-1785MHz. N78 has a large frequency bandwidth and can meet high throughput requirements; the above-mentioned N3 supports FDD carriers and can meet low latency requirements. The uplinks corresponding to the foregoing scenario A and scenario C may include one link channel; the uplinks corresponding to the foregoing scenario B and scenario D may include two link channels. Taking establishing an uplink in scenario B as an example, the above indication information may include a communication scenario identifier, that is, scenario B, and may also include a communication frequency band identifier, such as N78.

S102. The baseband processor configures parameters for the link resource module to establish the first link; the link resource module is a module related to establishing the first link in the terminal device.

After the baseband processor in the terminal device receives the above indication information, it can configure the parameters of the link resource module based on the indication information. The above-mentioned link resource module may include a baseband module, a radio frequency module, a local oscillator module, a power amplifier module, an antenna switch module, and an antenna module.

When the above-mentioned first link completes uplink data or downlink data transmission, the modules to be used may include a baseband module, a radio frequency module, a local oscillator module, a power amplifier module, an antenna switch module, and an antenna module. Wherein, the radio frequency module can complete signal frequency conversion, the local oscillator module can provide a local oscillator signal to the radio frequency module, the power amplifier module can amplify the signal, the antenna switch module can control the connection between the radio frequency module and the antenna through a switch, the antenna module Used to receive signals or send signals output by the power amplifier to network devices. Modules in terminal equipment may have the capability to support multiple link paths. Taking the uplink hardware architecture diagram shown in Figure 3 as an example, the digital baseband system in the terminal device may include 3 uplink digital channels, corresponding to 3 baseband modules; the RF analog system in the terminal device includes 3 RF modules and 2 The local oscillator module; the front-end antenna system in the above-mentioned uplink hardware architecture includes 3 power amplifier modules, 2 antenna switch modules and 2 antenna modules.

The aforementioned link resource module may be a module related to establishing the first link in the terminal device. The modules related to establishing the first link may include modules required to establish the first link, and may also include modules required to release resources after the first link is established. Taking the uplink hardware architecture diagram in Figure 3 as an example, if the indication information is used to create a first link, and the first link is an N78 single-stream link, the link resource module may include a baseband module, an N78 A matching radio frequency module, an N78 matching power amplifier module, a local oscillator module, an antenna switch module and an antenna module. If the indication information is used to switch the current link to the first link, taking the current link as an N3 single-stream link and the first link as an N78 single-stream link as an example, the above-mentioned link resource module may include 2 basebands module, a radio frequency module corresponding to N78 and 1 radio frequency module corresponding to N3, a power amplifier module corresponding to N78 and a power amplifier module corresponding to N3, 2 local oscillator modules, 2 antenna switch modules and 2 antenna modules.

The baseband processor can perform parameter configuration on the above-mentioned link resource module. The baseband processor can control each link resource module separately. The configuration parameters corresponding to different types of link resource modules may be different. For example, the configuration parameters of the above-mentioned baseband module may include the signal frequency output by the baseband module, carrier bandwidth, carrier spacing, etc.; the configuration parameters of the above-mentioned radio frequency module may include intermediate frequency frequency, link attenuation, etc. Vibration frequency, etc., the configuration parameters of the power amplifier module may include attenuation, static parameters, temperature compensation coefficient, etc. In addition, the configuration parameters of the above-mentioned link resource modules may also include the connection relationship between each module, for example, which radio frequency module is connected to the baseband module used in the first link, and which local oscillator is connected to the radio frequency module used in the first link. Module connection, the conduction direction of the above-mentioned antenna switch module, that is, which power amplifier module is connected to the antenna module by the antenna switch module.

After the baseband processor in the terminal device configures the parameters of the link resource module, the first link can complete data transmission in the corresponding working frequency band.

The baseband processor may include one processing unit, or may include multiple processing units. In the case where the above-mentioned baseband processor includes a processing unit, in the above-mentioned link establishment process, steps such as receiving indication information and completing parameter configuration can be completed by the processing unit. Optionally, the above-mentioned baseband processor may include three processing units, namely a central link control unit (Central Link Control Unit, CLCU for short), a resource management unit (Central LinkResource Unit, CLRU for short), and a drive configuration unit (Central Link Driver Unit). , referred to as CLDU). Wherein, the above-mentioned CLCU is mainly used for collecting applications for link resource modules, including receiving indication information sent by network equipment, and scheduling CLDUs and CLRUs according to the indication information. The above CLDU can be used to configure parameters of each link resource module. The above-mentioned CLRU is used to manage the link resource module and the configuration parameters corresponding to the link resource module.

In the above link establishment method, the baseband processor in the terminal device receives the instruction information sent by the network device; based on the above instruction information, the baseband processor performs parameter configuration on the link resource module to establish the first link; wherein, the above link resource The module is a module related to establishing the first link in the terminal device. Since the receiving network device in the terminal device sends the instruction information for establishing the first link, and the steps such as configuring the parameters of the link resource module are all completed by the baseband processor, the establishment process of the first link in this application can avoid digital The signaling interaction between the baseband system and the system where other link resource modules are located reduces the establishment delay of the first link; further, the terminal device completes the parameter configuration of other link resource modules through the baseband module, so that the radio frequency module The other link resource modules can be simplified to pure hardware circuits, reducing the complexity of the circuit structure and the size of other link resource modules, and improving the system integration.

Fig. 4 is a schematic flowchart of a link establishment method in an embodiment. This embodiment involves the process of switching a terminal device from the current link to the first link. On the basis of the above embodiment, as shown in Fig. 4, the above S102 include:

S201. The baseband processor acquires resource configuration parameters related to the first link.

The above indication information is used to instruct the terminal device to switch from the current link to the first link. Taking the NR system as an example, in order to improve the uplink throughput and reduce the system delay, the terminal device can perform uplink switching within the capability range. The terminal device may receive the DCI message sent by the network device, and obtain the above indication information by parsing the DCI message. The above indication information may also include a time requirement for link switching, for example, the network device may require the terminal device to complete the link switching within a time period T. Taking the handover schematic diagram in Figure 5 as an example, the current link of the terminal device can be an N3 single-stream link plus an N78 dual-stream link; the terminal device can receive a DCI message in slot1, and analyze and obtain the instruction information, instructing the terminal device to switch from the current The link is switched to the N78 dual-stream link; the shaded part in the figure can be the time period T of the link switch. The terminal device can start link switching at slot3, and can start uplink transmission through the N78 dual-stream link at slot4.

The above link switching time period may be 35 microseconds or 140 microseconds. The uplink data sent by the terminal device within the time period T is invalid data. The above-mentioned time period T may be a parameter reported by the terminal device to the base station according to its own system capability, and the shorter the above-mentioned time period T, the shorter the corresponding uplink pair switching delay.

The foregoing resource configuration parameters refer to configuration parameters corresponding to the first resource module used by the first link under the first link. After receiving the indication information, the baseband processor calculates which resource modules are related link resource modules in the process of switching to the first link, and then determines configuration parameters corresponding to the link resource modules. Optionally, after receiving the indication information, the baseband processor can query the identifier of the first resource module in the preset resource configuration relationship; then, query the parameter matching the identifier in the preset configuration parameter list to obtain the resource configuration parameters.

Alternatively, the above-mentioned baseband processor may also obtain pre-configured parameters, and the above-mentioned pre-configured parameters may be link resource modules related to the first link determined in advance before receiving the indication information, and configuration parameters of the above-mentioned link resource modules . Optionally, before receiving the indication information, the baseband processor may query the identifier of the first resource module in the preset resource configuration relationship; and then query the preset configuration parameter list that matches the identifier of the first resource module. Parameters, generate pre-configured parameters. The terminal device may call the above-mentioned preconfigured parameters in a preset storage area, and determine them as resource configuration parameters. The manner of obtaining the above resource configuration parameters is not limited here.

In an implementation manner, the baseband processor may determine whether the current link supports link switching according to the capability of the terminal device; if so, execute the step of generating preconfigured parameters. If the current link of the terminal device does not support link switching, then the step of generating preconfigured parameters is not performed.

The above resource configuration relationship may include module identifiers required by different links. The link corresponding to each carrier aggregation scenario shown in the above table is taken as an example. The above resource configuration relationship can be shown in the following table:

Taking the terminal device switching from the uplink of scenario D to the uplink of scenario B as an example, the link resource modules involved in the link switching of the terminal device may include baseband modules 0-2, radio frequency modules 0-2, local vibration modules 0~1, power amplifier modules 0~2, antenna switch modules 0~1, and antenna modules 0~1. The first resource modules used by the first link may include a baseband module 1-2, a radio frequency module 1-2, a local oscillator module 1, a power amplifier module 1-2, an antenna switch module 0-1, and an antenna module 0-1.

The terminal device can use the CLRU in the baseband module to calculate which modules are the first resource modules according to the control instructions of the CLCU, and further determine the configuration parameters of each first resource module according to the preset configuration parameter list. The above configuration parameter list includes parameters corresponding to each resource module under different links.

It should be noted that the current link may be capable of being switched to a different link, that is to say, the current link may be switched to a different link. For example, the current link is a link corresponding to scene D, and the above-mentioned current link may be switched to a link corresponding to scene D, or may be switched to a link corresponding to scene C.

When determining the preconfiguration parameters, the baseband processor may determine the corresponding preconfiguration parameters when the current link is switched to a different link. The CLRU can query the resource modules used by each candidate switching link in the resource configuration relationship stored in the non-volatile random-access memory (Non-Volatile Random-Access Memory, referred to as NVRAM), and query the corresponding After marking the candidate handover link, each preconfigured parameter is stored in a semi-static manner. For example, if the current link is an N3 single-stream link plus an N78 single-stream link, the resource module corresponding to the N3 frequency band in the current link may be switched to the N78 frequency band; the baseband processor can query based on the resource configuration relationship under the current link The resource configuration corresponding to N78 is stored in the following table:

After the CLCU in the baseband processor receives the instruction information, it can send a scheduling instruction to the CLRU according to the first link corresponding to the above instruction information, so that the CLRU can send the preconfigured parameters corresponding to the first link to the CLDU; the CLDU can Write the preconfigured parameters corresponding to the first link into the DRAM in the form of registers, and use the above preconfigured parameters to perform parameter configuration on the first resource module after receiving the scheduling instruction from the CLCU.

S202. The baseband processor uses resource configuration parameters to set parameters for the first resource module; the first resource module is a module used in the first link.

The baseband processor can use the above resource configuration parameters to set parameters for each first resource module, so that the set first resource modules can perform data transmission under the first link.

The baseband processor may set parameters for each first resource module in a random order; it may also set parameters for each first resource module in a preset order, which is not limited here.

S203. The baseband processor performs resource release on the second resource module; wherein, the second resource module is used by the current link and not used by the first link.

After the parameter setting of the first resource module is completed, the baseband processor may perform resource release on the second resource module used by the current link and not used in the first link.

In the above link establishment method, the baseband processor completes the establishment of the first link by configuring the parameters of the first resource module and releasing the resources of the second resource module; In the case of parameter configuration of the first resource module, before the terminal device receives the instruction information, the calculation of the first resource module in the handover process and the parameter acquisition of the first resource module can be completed, so that the baseband processor receives the instruction After information, the first resource module can be configured with pre-configured parameters directly, which further reduces the link switching delay; further, the baseband processor performs unified management of each resource module through the resource configuration relationship and configuration parameter list, Not only can it reduce the signaling interaction during link establishment, but it can also improve the scalability of link establishment. When the terminal device supports links in other scenarios, it only needs to optimize the resource configuration relationship.

In one embodiment, the above-mentioned resource configuration parameters include a first parameter of a shared resource module and a second parameter of a non-shared resource module; wherein, the shared resource module is a module used by both the first link and the current link; The shared resource module is used by the first link and not used by the current link.

The baseband processor can query the identifier of the first resource module used by the first link in the preset resource configuration relationship, and query the identifier of the link resource module used by the current link in the preset resource configuration relationship; further , determining the shared resource module and the non-shared resource module in the first resource module by comparing the identifier of the link resource module used by the current link with the identifier of the first resource module.

Take the current link including a single-stream link of the first frequency band (such as N3) and a single-stream link of the second frequency band (such as N78); the first link includes a dual-stream link of the second frequency band (such as N78) as an example , referring to the uplink hardware architecture in FIG. 3 , the above link switching process may be shown in FIG. 6 . In FIG. 6 , each module is connected by a solid line to form a current link; each module is connected by a dotted line to form a switched first link. It can be seen from FIG. 6 that the shared resource modules of the current link and the first link may include a digital baseband module 2 , a radio frequency module 2 , a power amplifier module 2 , an antenna switch module 0 , an antenna switch module 1 , an antenna module 1 and an antenna module 0 . The non-shared resource modules may include a digital baseband module 1 , a radio frequency module 1 and a power amplifier module 1 .

The baseband processor can determine the first parameter used by the shared module and the second parameter used by the non-shared module according to the preset configuration parameter list. Further, the baseband module may configure the parameter of the non-shared resource module as the second parameter; then, modify the current parameter of the shared resource module to the first parameter.

FIG. 7 is a schematic flowchart of a method for establishing a link in an embodiment. This embodiment involves the process of creating a first link for a terminal device. On the basis of the above embodiment, as shown in FIG. 7, the above S102 includes:

S301. The baseband processor queries an identifier of a first resource module used by a first link in a preset resource configuration relationship.

S302. Query parameters matching the identifier of the first resource module in the preset configuration parameter list, and obtain resource configuration parameters.

S303. Configure the first link resource module by using resource configuration parameters.

The above process of creating the first link is different from the process of switching from the current link to the first link in that, after receiving the indication information, the baseband processor in the terminal device directly uses the resource configuration relationship and the configuration parameter list to The resource configuration parameters corresponding to the first link are obtained instead of pre-configured parameters. In addition, for the case of creating a new first link, the link resource module associated with the first link is the first resource module used by the first link, excluding modules not used by the first link; therefore, the baseband processing The controller does not need to release resources for unused modules of the first link.

In the above link establishment method, in the process of establishing the first link of the terminal device, the baseband processor completes the parameter configuration of the first resource module, so as to avoid the signaling interaction between the digital baseband system and the system where other link resource modules are located , reducing the establishment delay of the first link.

In one embodiment, as shown in FIG. 8, the link establishment method includes:

S401. The network device sends instruction information for establishing a first frequency band single-stream link to the terminal device.

S402. The baseband processor in the terminal device queries the identifier of the first resource module used by the first frequency band single-stream link in the preset resource configuration relationship.

S403. The baseband processor in the terminal device searches the preset configuration parameter list for parameters that match the identifier of the first resource module used by the first frequency band single-stream link, and obtains the resource configuration corresponding to the first frequency band single-stream link parameter.

S404. The baseband processor in the terminal device configures the first link resource module used by the first frequency band single stream link by using the resource configuration parameters corresponding to the first frequency band single stream link.

Taking the NR system as an example, when a terminal device accesses an N3 cell, the network device can notify the terminal device to establish an N3 single-flow link through a DCI message, and requires the link establishment to be completed after TimeA.

The CLCU in the baseband processing can schedule the CLRU to query link resources according to the carrier information such as the N3 center frequency point, bandwidth, and subcarrier spacing configured by the network equipment. CLRU will find the N3 single-carrier link resource information from the resource configuration relationship stored in NVRAM according to the carrier information, and then store it in the memory space allocated by the system. The CLRU will mark the first resource module used by the N3 link with a link number, as shown in the table below, and return the link number to the CLCU.

Further, the CLRU may send a parameter query instruction to the CLDU to instruct the CLDU to query the configuration parameters of the resource modules used by the N3 link. According to the number of each module, CLDU searches the configuration parameter list for parameters that match the identifier of the first resource module used by the first frequency band single-stream link, then formats each configuration parameter and stores it in DRAM in the form of a register . The CLCU may send a parameter configuration instruction to the CLDU according to the TimeA indicated by the network device and the link number of the N3 link. CLDU can configure configuration parameters already stored in DRAM to each resource module. CLDU can complete parameter configuration before Time A-D0-TD. Wherein, the above TD is the digital interface transmission delay, and D0 is greater than the link switching period T. During the establishment process of the above-mentioned N3 link, the interaction between various processing units in the baseband processor can be referred to in FIG. 9 .

S405. The network device sends instruction information for establishing a single-stream link in the second frequency band to the terminal device.

S406. The baseband processor in the terminal device queries the identifier of the first resource module used by the single-stream link in the second frequency band in the preset resource configuration relationship.

S407. The baseband processor in the terminal device searches the preset configuration parameter list for parameters that match the identifier of the first resource module used by the second frequency band single-stream link, and obtains the resource configuration corresponding to the second frequency band single-stream link parameter.

S408. The baseband processor in the terminal device configures the first link resource module used by the single-stream link in the second frequency band by using the resource configuration parameters corresponding to the single-stream link in the second frequency band.

Continuing to take the above-mentioned NR system as an example, when a terminal device accesses an N78 cell, the terminal device can notify the terminal device to establish an N78 single-flow link through a DCI message, and form uplink carrier aggregation with the N3 single-flow link. The network device may notify the terminal device to complete link establishment after TimeB.

The establishment process of the above N78 single-stream link is similar to the establishment process of the above-mentioned N3 single-stream link. As shown in Figure 9, the CLDU can complete the parameter configuration of the N78 single-stream link before Time B-D1-TD.

After S405, it also includes:

S409. The baseband processor in the terminal device queries the identifier of the first resource module used by the dual-stream link in the second frequency band in the preset resource configuration relationship.

S410. The baseband processor in the terminal device searches a preset configuration parameter list for parameters matching the identifier of the first resource module, and generates pre-configured parameters.

Continuing to take the NR system as an example, the CLCU can determine whether the combination of the N3 single-stream link and the N78 single-stream link supports link switching after receiving the instruction information for establishing the N78 single-stream link. If not supported, the baseband processor can complete the establishment of the N78 single-stream link according to the above steps; if supported, it means that the switched N78 dual-stream link may use the resource module used by the N3 single-stream link. The CLRU needs to query the identifier of the first resource module to be used by the N78 dual-stream link in the resource configuration relationship, and after labeling the N78 dual-stream link, send it to the CLDU. The CLDU can determine the shared resource modules of the current link and the switched N78 dual-stream link based on the above-mentioned link identifier, and store the configuration parameters of the shared resource module in the N78 dual-stream link in the DRAM in the form of registers to form pre-configured parameters.

S411. The network device sends instruction information to switch to the dual-stream link in the second frequency band to the terminal device.

S412. The baseband processor of the terminal device acquires preconfigured parameters; the preconfigured parameters include a second parameter corresponding to a non-shared resource module and a first parameter corresponding to a shared resource module.

S413. The baseband processor of the terminal device configures the parameter of the non-shared resource module as a second parameter.

S414. The baseband processor of the terminal device modifies the current parameter of the shared resource module to the first parameter.

S415. The baseband processor of the terminal device releases resources for the second resource module.

Continuing to take the above-mentioned NR system as an example, after the baseband processor in the terminal device receives the DCI, it obtains the instruction information to switch to the N78 dual-stream link through analysis. The above instruction information requires the terminal device to switch to the N78 dual-stream link from Time C for data transfer.

When the baseband processor in the terminal device obtains the pre-configured parameters in advance, the CLCU only needs to schedule the CLDU for parameter configuration, and the CLDU can sequentially complete the configuration of the non-shared resource modules used by the N78 dual-stream link based on the pre-configured parameters stored in the DRAM. Parameter configuration, parameter configuration of the shared resource module used by the N78 dual-stream link, and resource release of the second resource module used by the N3. As shown in Figure 9, the CLDU can complete the parameter configuration of the N78 dual-stream link before TimeC-D1-TD. CLDU can complete the parameter configuration of the non-shared resource module in the N78 dual-stream link before Time C-T-TD (T is the minimum link switching period reported by the terminal), so that the data transmission of the N3 single-stream link will not be affected. Then complete the parameter configuration of the shared resource module of the N78 dual-stream link before Time C-D2-TD (D2<T), and release the resources of the second resource module used by the N3 single-stream link; on this basis, the N78 The dual-stream link can transmit data after Time C, and stop transmitting data on the N3 single-stream link.

The link establishment method above requires disclosure of the link switching cycle time of the terminal equipment, which can reserve more time for data transmission and improve the throughput of the terminal equipment. For example, it takes 140 microseconds to switch an N3 single-stream link plus an N78 dual-stream link to an N78 dual-stream link in the traditional method, but using the method in this embodiment, the link switching time can be compressed to 35 microseconds, and the link The switching period is shortened by 75%. In addition, multiple processing units in the baseband processor jointly complete link establishment, and can perform parallel processing on link establishment tasks, further improving link switching efficiency and reducing link switching delay.

It should be understood that although the various steps in the flow charts in FIGS. 2-9 are shown sequentially as indicated by the arrows, these steps are not necessarily executed sequentially in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and these steps can be executed in other orders. Moreover, at least some of the steps in Figures 2-9 may include a plurality of sub-steps or stages, these sub-steps or stages are not necessarily performed at the same time, but may be performed at different times, these sub-steps or stages The order of execution is not necessarily performed sequentially, but may be performed alternately or alternately with at least a part of other steps or sub-steps or stages of other steps.

Fig. 10 is a structural block diagram of an apparatus for establishing a link according to an embodiment. As shown in Figure 10, the above-mentioned devices include:

The receiving module 10 is configured to receive instruction information sent by the network device; the instruction information is used to instruct the terminal device to establish the first link;

The configuration module 20 is configured to configure parameters of the link resource module to establish the first link; the link resource module is a module related to the establishment of the first link in the terminal device.

In one embodiment, on the basis of the above embodiments, the instruction information is used to instruct the terminal device to create the first link, or to instruct the terminal device to switch the current link to the first link .

In one embodiment, on the basis of the foregoing embodiments, as shown in FIG. 11 , when the indication information is used to instruct the terminal device to switch the current link to the first link, the configuration module 20 includes:

An obtaining unit 201, configured to obtain resource configuration parameters related to the first link;

A setting unit 202, configured to use the resource configuration parameters to set parameters for the first resource module; the first resource module is a module used in the first link;

The release unit 203 is configured to perform resource release on the second resource module; wherein, the second resource module is used by the current link and not used by the first link.

In one embodiment, on the basis of the above embodiment, as shown in FIG. 12 , the above device further includes a generation module 30, configured to: before receiving the indication information, query all The identifier of the first resource module; query the parameters matching the identifier of the first resource module in the preset configuration parameter list to generate pre-configured parameters; correspondingly, the above-mentioned acquisition unit 201 is used for Determine the configuration parameters for the resource.

In one embodiment, on the basis of the above-mentioned embodiments, the above-mentioned acquisition unit 201 is specifically configured to: query the identifier of the first resource module in the preset resource configuration relationship; query the identity of the first resource module in the preset configuration parameter list The parameter matching the identifier is used to obtain the resource configuration parameter.

In one embodiment, on the basis of the above embodiments, the resource configuration parameters include the first parameter of the shared resource module and the second parameter of the non-shared resource module; wherein, the shared resource module is the first parameter A module used by both a link and the current link; the non-shared resource module used by the first link and not used by the current link.

In one embodiment, on the basis of the above embodiment, the generating module 30 is further configured to: query the identifier of the link resource module used by the current link in the preset resource configuration relationship; The identification of the link resource module used by the road is compared with the identification of the first resource module, and the shared resource module and the non-shared resource module in the first resource module are determined.

In one embodiment, on the basis of the above embodiment, the above setting unit 202 is specifically configured to: configure the parameter of the non-shared resource module as the second parameter; modify the current parameter of the shared resource module as the first parameter.

In one embodiment, on the basis of the above embodiments, the generating module 30 is further configured to: determine whether the current link supports link switching according to the capability of the terminal device; if so, execute the step of generating preconfigured parameters.

In one embodiment, on the basis of the above embodiments, the current link includes a single-stream link in the first frequency band and a single-stream link in the second frequency band; the first link includes the second Band dual-stream link.

In one embodiment, on the basis of the above embodiments, the configuration module 20 is specifically configured to: in the preset resource configuration relationship, query the identifier of the first resource module used by the first link; Querying the parameters matching the identifier of the first resource module in the configuration parameter list to obtain the resource configuration parameters; using the resource configuration parameters to configure the first link resource module.

In an embodiment, based on the foregoing embodiments, the first link is used to implement carrier aggregation.

In one embodiment, on the basis of the foregoing embodiments, the link resource module includes a baseband module, a radio frequency module, a local oscillator module, a power amplifier module, an antenna switch module, and an antenna module.

For the above-mentioned link establishment device, its implementation principle and technical effect refer to the above-mentioned method embodiment, and details are not described here.

The division of each module in the above link establishment device is only for illustration. In other embodiments, the link establishment device can be divided into different modules according to needs, so as to complete all or part of the functions of the above link establishment device.

For specific limitations on the link establishment device, refer to the above limitation on the link establishment method, which will not be repeated here. Each module in the above-mentioned link establishment device can be fully or partially realized by software, hardware and a combination thereof. The above-mentioned modules can be embedded in or independent of the processor in the computer device in the form of hardware, and can also be stored in the memory of the computer device in the form of software, so that the processor can invoke and execute the corresponding operations of the above-mentioned modules.

Fig. 13 is a schematic diagram of the internal structure of a terminal device in an embodiment. The terminal device may be any terminal device such as a mobile phone, a tablet computer, a notebook computer, a desktop computer, a PDA (Personal Digital Assistant, personal digital assistant), a POS (Point of Sales, sales terminal), a vehicle-mounted computer, or a wearable device. The terminal device includes a processor and a memory connected by a system bus. Wherein, the processor may include one or more processing units. The processor may be a CPU (Central Processing Unit, central processing unit) or a DSP (Digital Signal Processing, digital signal processor), etc. The memory may include non-volatile storage media and internal memory. Nonvolatile storage media store operating systems and computer programs. The computer program can be executed by a processor, so as to implement a method for establishing a link provided in each of the following embodiments. The internal memory provides a high-speed running environment for the operating system computer program in the non-volatile storage medium.

The implementation of each module in the link establishing apparatus provided in the embodiment of the present application may be in the form of a computer program. The computer program can run on a terminal or a server. The program modules constituted by the computer program can be stored on the memory of the terminal device. When the computer program is executed by the processor, the steps of the methods described in the embodiments of the present application are realized.

The embodiment of the present application also provides a computer-readable storage medium. One or more non-transitory computer-readable storage media containing computer-executable instructions that, when executed by one or more processors, cause the processors to perform the steps of the link establishment method.

The embodiment of the present application also provides a computer program product including instructions, which, when running on a computer, causes the computer to execute the link establishment method.

Any reference to memory, storage, database, or other medium as used herein may include non-volatile and/or volatile memory. Non-volatile memory can include ROM (Read-Only Memory, read-only memory), PROM (Programmable Read-only Memory, programmable read-only memory), EPROM (Erasable Programmable Read-Only Memory, erasable programmable read-only memory ), EEPROM (Electrically Erasable Programmable Read-only Memory, Electrically Erasable Programmable Read-Only Memory) or flash memory. The volatile memory may include RAM (Random Access Memory), which is used as an external cache memory. By way of illustration and not limitation, RAM is available in various forms, such as SRAM (Static Random Access Memory, Static Random Access Memory), DRAM (Dynamic Random Access Memory, Dynamic Random Access Memory), SDRAM (Synchronous Dynamic Random Access Memory , synchronous dynamic random access memory), double data rate DDRSDRAM (Double Data Rate Synchronous Dynamic Random Access memory, double data rate synchronous dynamic random access memory), ESDRAM (Enhanced Synchronous Dynamic Random Access memory, enhanced synchronous dynamic random access memory), SLDRAM (Sync Link Dynamic Random Access Memory, synchronous link dynamic random access memory), RDRAM (Rambus Dynamic Random Access Memory, bus dynamic random access memory), DRDRAM (Direct Rambus Dynamic Random Access Memory, interface dynamic random access memory ).

The above-mentioned embodiments only express several implementation modes of the present application, and the description thereof is relatively specific and detailed, but should not be construed as limiting the patent scope of the present application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the scope of protection of the patent application should be based on the appended claims.

Claims (12)

1. A method for establishing a link, characterized in that it is applied to a baseband processor in a terminal device, comprising: The baseband processor receives the instruction information sent by the network device; the instruction information is used to instruct the terminal device to create a first link, or to instruct the terminal device to switch the current link to the first link; The baseband processor performs parameter configuration on the link resource module to establish the first link; the link resource module is a module related to establishing the first link in the terminal device; the link resource Modules include baseband module, radio frequency module, local oscillator module, power amplifier module, antenna switch module and antenna module; Wherein, when the indication information is used to instruct the terminal device to switch the current link to the first link, the baseband processor performs parameter configuration on the link resource module, including: the baseband processor obtains the first link A link-related resource configuration parameter; the baseband processor uses the resource configuration parameter to set parameters for the first resource module; the first resource module is a module used in the first link, and the The first resource module is a link resource module related to the process of switching to the first link; the baseband processor releases resources for the second resource module; wherein, the second resource module is the current link A module that is used by the first link and not used in the first link; The instruction information is used to instruct the terminal device to create the first link, the baseband processor configures the parameters of the link resource module, including: the baseband processor is in a preset resource configuration relationship, Querying the identity of the first resource module used by the first link; the first resource module is a link resource module associated with the first link; querying the first resource module associated with the first link in the preset configuration parameter list A parameter matching the identifier of a resource module is used to obtain the resource configuration parameter; and the resource configuration parameter is used to configure the first link resource module. 2. The method according to claim 1, wherein, before the baseband processor acquires resource configuration parameters related to the first link, further comprising: Before receiving the indication information, query the identifier of the first resource module in a preset resource configuration relationship; Querying parameters matching the identifier of the first resource module in the preset configuration parameter list to generate pre-configured parameters; Correspondingly, the baseband processor acquires resource configuration parameters related to the first link, including: The pre-configuration parameter is determined as the resource configuration parameter. 3. The method according to claim 1, wherein the baseband processor acquires resource configuration parameters related to the first link, comprising: Querying the identifier of the first resource module in a preset resource configuration relationship; Query the parameters matching the identifier in the preset configuration parameter list to obtain the resource configuration parameters. 4. The method according to claim 2 or 3, wherein the resource configuration parameters include a first parameter of a shared resource module and a second parameter of a non-shared resource module; wherein, the shared resource module is A module used by both the first link and the current link; the non-shared resource module used by the first link and not used by the current link. 5. The method according to claim 4, characterized in that, after querying the identifier of the first resource module in the preset resource configuration relationship, further comprising: Query the identifier of the link resource module used by the current link in the preset resource configuration relationship; Comparing the identifier of the link resource module used by the current link with the identifier of the first resource module to determine a shared resource module and a non-shared resource module in the first resource module. 6. The method according to claim 4, wherein the baseband processor uses the resource configuration parameters to set parameters for the first resource module, including: Configuring parameters of the non-shared resource module as the second parameter; Modifying the current parameter of the shared resource module to the first parameter. 7. The method according to claim 2, wherein, before generating the preconfigured parameters, further comprising: Determine whether the current link supports link switching according to the capability of the terminal device; If yes, execute the step of generating pre-configured parameters. 8. The method according to claim 2, wherein the current link includes a single-stream link in the first frequency band and a single-stream link in the second frequency band; the first link includes the second Two-band dual-stream link. 9. The method according to claim 1, wherein the first link is used to implement carrier aggregation. 10. A link establishment device, characterized in that it is applied to a baseband processor in a terminal device, comprising: The receiving module is configured to receive indication information sent by the network device; the indication information is used to instruct the terminal device to create a first link, or to instruct the terminal device to switch the current link to the first link; A configuration module, configured to configure parameters of a link resource module to establish the first link; the link resource module is a module related to establishing the first link in the terminal device; the link resource Modules include baseband module, radio frequency module, local oscillator module, power amplifier module, antenna switch module and antenna module; Wherein, when the indication information is used to instruct the terminal device to switch the current link to the first link, the baseband processor performs parameter configuration on the link resource module, including: the baseband processor obtains the first link A link-related resource configuration parameter; the baseband processor uses the resource configuration parameter to set parameters for the first resource module; the first resource module is a module used in the first link, and the The first resource module is a link resource module related to the process of switching to the first link; the baseband processor releases resources for the second resource module; wherein, the second resource module is the current link A module that is used by the first link and not used in the first link; The instruction information is used to instruct the terminal device to create the first link, the baseband processor configures the parameters of the link resource module, including: the baseband processor is in a preset resource configuration relationship, Querying the identity of the first resource module used by the first link; the first resource module is a link resource module associated with the first link; querying the first resource module associated with the first link in the preset configuration parameter list A parameter matching the identifier of a resource module is used to obtain the resource configuration parameter; and the resource configuration parameter is used to configure the first link resource module. 11. A terminal device, comprising a memory and a processor, wherein a computer program is stored in the memory, wherein, when the computer program is executed by the processor, the processor is executed as claimed in claims 1-9. The step of any described method. 12. A computer-readable storage medium, on which a computer program is stored, wherein, when the computer program is executed by a processor, the steps of the method according to any one of claims 1-9 are realized.