CN114040513B - Link establishment method, device, terminal equipment and computer readable storage medium - Google Patents
Link establishment method, device, terminal equipment and computer readable storage medium Download PDFInfo
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- 238000004220 aggregation Methods 0.000 claims description 8
- 230000009977 dual effect Effects 0.000 claims description 8
- 230000003993 interaction Effects 0.000 abstract description 7
- 230000011664 signaling Effects 0.000 abstract description 6
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/11—Allocation or use of connection identifiers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/0231—Traffic management, e.g. flow control or congestion control based on communication conditions
- H04W28/0236—Traffic management, e.g. flow control or congestion control based on communication conditions radio quality, e.g. interference, losses or delay
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
Abstract
The application relates to a link establishment method, a device, a terminal device and a computer readable storage medium, wherein a baseband processor in the terminal device receives indication information sent by network equipment; based on the indication information, the baseband processor performs parameter configuration on the link resource module to establish a first link; the link resource module is a module related to the establishment of the first link in the terminal equipment. By adopting the method, signaling interaction between the digital baseband system and the system where other link resource modules are located in the link establishment process can be avoided, and the establishment time delay of the first link is reduced; further, parameter configuration of other link resource modules is completed in the terminal equipment through the baseband processor, so that the link resource modules such as the radio frequency module and the like can be simplified to a pure hardware circuit, the complexity of a circuit structure is reduced, the size of the other link resource modules is reduced, and the system integration level is improved.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a link establishment method, a link establishment device, a terminal device, and a computer readable storage medium.
Background
In the 5G system, in order to improve uplink throughput and reduce delay, the terminal device may perform uplink handover in different scenarios. For example, the uplink of the terminal device in one scenario may include an uplink of an N3 band and an uplink of an N78 band, and when handover to another scenario is required, the uplink of the terminal device may include two uplinks of the N78 band. The N78 band is wider in bandwidth, and can bring higher uplink throughput rate.
When the terminal device performs uplink switching in different scenarios, it needs to reallocate or reset all transmission paths, where the transmission paths include a radio frequency unit, a baseband unit, and an antenna front end unit. The link switching process involves interaction among a plurality of system units, so that the link switching time delay is longer, and the system performance is affected.
Disclosure of Invention
The embodiment of the application provides a link establishment method, a device, terminal equipment and a computer readable storage medium, which can reduce the link establishment time delay.
In a first aspect, a link establishment method, applied to a baseband processor in a terminal device, includes:
the baseband processor receives indication information sent by the network equipment; the indication information is used for indicating the terminal equipment to establish a first link;
The baseband processor performs parameter configuration on the link resource module to establish a first link; the link resource module is a module in the terminal equipment related to the establishment of the first link.
In a second aspect, a link establishment apparatus, applied to a baseband processor in a terminal device, includes:
the receiving module is used for receiving the indication information sent by the network equipment; the indication information is used for indicating the terminal equipment to establish a first link;
the configuration module is used for carrying out parameter configuration on the link resource module so as to establish a first link; the link resource module is a module in the terminal equipment related to the establishment of the first link.
In a third aspect, a terminal device comprises a memory and a processor, the memory storing a computer program which, when executed by the processor, causes the processor to perform the steps of the method of the first aspect.
In a fourth aspect, a computer-readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method as in the first aspect.
The link establishment method, the device, the terminal equipment and the computer readable storage medium, wherein a baseband processor in the terminal equipment receives indication information sent by the network equipment; based on the indication information, the baseband processor performs parameter configuration on the link resource module to establish a first link; the link resource module is a module related to the establishment of the first link in the terminal equipment. The steps of receiving the indication information of establishing the first link sent by the network equipment, carrying out parameter configuration on the link resource module and the like in the terminal equipment are completed in the baseband processor, so that the establishment process of the first link can avoid signaling interaction between a digital baseband system and a system where other link resource modules are located, and the establishment time delay of the first link is reduced; further, parameter configuration of other link resource modules is completed in the terminal equipment through the baseband processor, so that the link resource modules such as the radio frequency module and the like can be simplified to a pure hardware circuit, the complexity of a circuit structure is reduced, the size of the other link resource modules is reduced, and the system integration level is improved.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a diagram of an application environment for a link establishment method in one embodiment of the present application;
fig. 2 is a flow chart of a link establishment method according to an embodiment of the present application;
FIG. 3 is a schematic diagram of a hardware link architecture according to an embodiment of the present application;
fig. 4 is a flow chart of a link establishment method according to an embodiment of the present application;
FIG. 5 is a schematic diagram showing information reception in accordance with one embodiment of the present application;
FIG. 6 is a schematic diagram of a link switch in an embodiment of the application;
fig. 7 is a flow chart of a link establishment method according to an embodiment of the present application;
fig. 8 is a flow chart of a link establishment method according to an embodiment of the present application;
fig. 9 is a flowchart of a link establishment method according to an embodiment of the present application;
fig. 10 is a block diagram illustrating a link establishment apparatus according to an embodiment of the present application;
Fig. 11 is a block diagram illustrating a link establishment apparatus according to an embodiment of the present application;
fig. 12 is a block diagram illustrating a link establishment apparatus according to an embodiment of the present application;
fig. 13 is a schematic structural diagram of a terminal device according to an embodiment of the present application.
Detailed Description
The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
It will be understood that the terms first, second, etc. as used herein may be used to describe various elements, 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 may be referred to as a second resource module, and similarly, a second resource module may be referred to as a first resource module, without departing from the scope of the 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 view of an application environment of a link establishment method in one embodiment. As shown in fig. 1, the application environment includes a communicatively coupled terminal device 102 and a network device 104. The network device 104 may be any device with wireless transceiver functions, including but not limited to: base stations NodeB, evolved base stations eNodeB, base stations in a fifth generation (the fifth generation, 5G) communication system, base stations or network equipment in a future communication system, access nodes in a WiFi system, wireless relay nodes, wireless backhaul nodes, etc. The network device may also be a wireless controller in the context of a cloud wireless access network (cloud radio access network, CRAN). The network device may also be a small station, a transmission node (transmission reference point, TRP), a Road Side Unit (RSU), etc. The embodiment of the application does not limit the specific technology and the specific equipment form adopted by the network equipment. The 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 may be a mobile phone, a tablet computer, a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal in an industrial control (industrial control), a wireless terminal in a self-driving (self-driving), a wireless terminal in a remote medical (remote medical), a wireless terminal in a smart grid (smart grid), a wireless terminal in transportation security (transportation safety), a wireless terminal in a smart city (smart city), a wireless terminal in a smart home (smart home), or the like. The embodiment of the application does not limit the application scene.
Fig. 2 is a flow chart of a method of link establishment in one embodiment. The link establishment method in this embodiment will be described by taking the terminal device in fig. 1 as an example. As shown in fig. 2, the method includes:
s101, a baseband processor receives indication information sent by a base station; the indication information is used for indicating the terminal equipment to establish the first link.
The baseband processor may be a processor in a digital baseband system. The digital baseband system may be a system for performing a signal modulation and demodulation function in a terminal device. The digital baseband system may include a plurality of baseband modules, where the baseband modules may be uplink digital channels or downlink digital channels; the uplink digital channel can send digital baseband signals to the radio frequency module, and the digital baseband signals are sent to the network equipment through the antenna after being processed by the radio frequency module. The downlink data channel can receive downlink data sent by the radio frequency module and demodulate the downlink data.
The baseband processor can demodulate downlink data sent by the network equipment to obtain indication information sent by the network equipment. The indication information may be sent through downlink control signaling (Downlink Control Information, abbreviated DCI).
The indication information may be used to instruct the terminal device to establish the first link. The first link may be an uplink or a downlink, and is not limited herein. The first link may include one link channel or multiple link channels, which is not limited herein. The first link may support 4G/5G dual connectivity (EUTRA-NR Dual Connectivity, abbreviated ENDC), may support 5G/5G dual connectivity (NR-NR Dual Connectivity, abbreviated NNDC), and may support communication connection under a supplementary uplink (Supplementary Uplink, abbreviated SUL) combination; the communication scenario supported by the first link is not limited herein. Alternatively, the first link may be used to implement carrier aggregation (Carrier Aggregation, CA for short).
After registering the network, the terminal device may receive the indication information sent by the network device to establish a first link; alternatively, the terminal device may receive the indication information when a link connection is established with the network device, so as to switch the current link to the first link. That is, the above indication information may be used to instruct the terminal device to newly establish the first link, or instruct the terminal device to switch the current link to the first link. The network device may determine, according to a service requirement of the terminal device, whether to send indication information to instruct the terminal device to perform link switching.
The indication information may include carrier information of the first link to be established, may include a link identifier of the first link, may further include a communication scene identifier corresponding to the first link, and may further include a communication frequency band identifier corresponding to the first link, where the content of the indication information is not limited herein. The carrier information of the first link may include a center frequency point, a link bandwidth, a subcarrier interval, and the like, which correspond to the first link. Taking the first link for uplink carrier aggregation in the NR system as an example, the carrier aggregation may support a variety of scenarios, as shown in the following table:
| scene numbering | Scene description |
| Scene A | N78 single carrier single stream |
| Scene B | N78 single carrier double flow |
| Scene C | N3 single carrier single stream |
| Scene D | N78 uniflow+N3 uniflow |
Wherein, the N78 is the frequency band of 3.3GHz-3.8GHz, and the N3 is the frequency band of 1710MHz-1785MHz. N78 has a larger frequency bandwidth, and can meet the requirement of high throughput; the above N3 supports FDD carriers, which can meet the low latency requirement. The uplink corresponding to the scenario a and the scenario C may include 1 link channel; the uplink corresponding to the scenario B and the scenario D may include 2 link channels. Taking the uplink under scenario B as an example, the indication information may include a communication scenario identifier, that is, scenario B, and may also include a communication frequency band identifier, for example, N78.
S102, the baseband processor performs parameter configuration on the link resource module to establish a first link; the link resource module is a module in the terminal equipment related to the establishment of the first link.
After receiving the indication information, the baseband processor in the terminal device can perform parameter configuration on the link resource module based on the indication information. The 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 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. The radio frequency module can complete signal frequency conversion, the local oscillation module can provide local oscillation signals for the radio frequency module, the power amplification module can amplify the signals, the antenna switch module can control connection between the radio frequency module and an antenna through a switch, and the antenna module is used for receiving the signals or sending the signals output by the power amplification to network equipment. Modules in the terminal device may be capable of supporting multiple link paths. Taking the uplink hardware architecture diagram shown in fig. 3 as an example, the digital baseband system in the terminal device may include 3 uplink digital channels, corresponding to 3 baseband modules; the radio frequency simulation system in the terminal equipment comprises 3 radio frequency modules and 2 local oscillation modules; the front-end antenna system in the uplink hardware architecture comprises 3 power amplifier modules, 2 antenna switch modules and 2 antenna modules.
The above-mentioned link resource module may be a module in the terminal device related to establishing the first link. The module related to the establishment of the first link may include a module that needs to be used for establishing the first link, and may also include a module that needs to perform resource release after the establishment of the first link. Taking the uplink hardware architecture diagram in fig. 3 as an example, if the indication information is used to create a first link, where the first link is an N78 single-stream link, the link resource module may include a baseband module, an N78 matched radio frequency module, an N78 matched 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 link resource module may include 2 baseband modules, one radio frequency module corresponding to N78, 1 radio frequency module corresponding to N3, a power amplifier module corresponding to N78, a power amplifier module corresponding to N3, 2 local oscillator modules, 2 antenna switch modules, and 2 antenna modules.
The baseband processor may perform parameter configuration on the link resource module. The baseband processor may 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 baseband module may include signal frequency, carrier bandwidth, carrier interval, etc. output by the baseband module; the configuration parameters of the radio frequency module can comprise intermediate frequency, link attenuation and the like, the configuration parameters of the local oscillation module can comprise local oscillation frequency and the like, and the configuration parameters of the power amplification module can comprise attenuation, static parameters, wen Bu coefficients and the like. In addition, the configuration parameters of the link resource modules may further include a connection relationship between each module, for example, a baseband module used by the first link is connected with which radio frequency module, a radio frequency module used by the first link is connected with which local oscillator module, and a conducting direction of the antenna switch module, that is, which power amplifier module is conducted by the antenna switch module with the antenna module.
After the baseband processor in the terminal equipment performs parameter configuration on 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 a plurality of processing units. In the case that the baseband processor includes a processing unit, the steps of receiving the indication information, completing the parameter configuration, and the like in the link establishment process may be completed by the processing unit. Optionally, the baseband processor may include 3 processing units, which are respectively an overall unit (Central Link Control Unit, abbreviated to CLCU), a resource management unit (Central Link Resource Unit, abbreviated to CLRU), and a drive configuration unit (Central Link Driver Unit, abbreviated to CLDU). The CLCU is mainly configured to collect an application for a link resource module, and includes receiving indication information sent by a network device, and scheduling the CLCU and the CLRU according to the indication information. The CLDU may be used to configure parameters for each link resource module. The CLRU is configured to manage configuration parameters corresponding to the link resource module.
In the link establishment method, a baseband processor in the terminal equipment receives the indication information sent by the network equipment; based on the indication information, the baseband processor performs parameter configuration on the link resource module to establish a first link; the link resource module is a module related to the establishment of the first link in the terminal equipment. The steps of receiving the indication information of the first link from the network equipment, carrying out parameter configuration on the link resource module and the like in the terminal equipment are all completed by the baseband processor, so that the signaling interaction between a digital baseband system and a system where other link resource modules are located can be avoided in the process of establishing the first link, and the time delay of establishing the first link is reduced; further, parameter configuration of other link resource modules is completed in the terminal equipment through the baseband module, so that the link resource modules such as the radio frequency module and the like can be simplified to a pure hardware circuit, the complexity of a circuit structure is reduced, the size of the other link resource modules is reduced, and the system integration level is improved.
Fig. 4 is a flow chart of a link establishment method in an embodiment, where the embodiment relates to a process of switching a terminal device from a current link to a first link, and on the basis of the embodiment, as shown in fig. 4, the step S102 includes:
s201, a baseband processor acquires resource configuration parameters related to a first link.
The indication information is used for indicating the terminal equipment to switch from the current link to the first link. Taking the NR system as an example, in order to improve uplink throughput and reduce system delay, a terminal device may perform uplink handover within a capability range. The terminal equipment can receive the DCI message sent by the network equipment, and acquire the indication information by analyzing the DCI message. The indication information may further include a time requirement for link switching, for example, the network device may require the terminal device to complete link switching in the time period T. Taking the handover diagram in fig. 5 as an example, the current link of the terminal device may be an N3 single-flow link plus an N78 dual-flow link; the terminal equipment can receive the DCI message in slot1 and analyze and obtain indication information to indicate the terminal equipment to switch from the current link to the N78 double-flow link; in the figure, the shaded part may be a time period T of link switching, and the terminal device may start to perform link switching at slot3, and may start to perform uplink transmission through the N78 dual-flow link at slot 4.
The time period of the link switching may be 35 microseconds or 140 microseconds. The uplink data sent by the terminal equipment in the time period T is invalid data. The time period T may be a parameter reported by the terminal device to the base station according to its own system capability, where the shorter the time period T, the shorter the corresponding uplink handover delay.
The resource configuration parameter refers to a configuration parameter corresponding to a first resource module used by a 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 further determines configuration parameters corresponding to the link resource modules. Optionally, after receiving the indication information, the baseband processor may query the identifier of the first resource module in a preset resource configuration relationship; and then, inquiring parameters matched with the identifiers in a preset configuration parameter list to obtain resource configuration parameters.
Alternatively, the baseband processor may obtain a pre-configuration parameter, where the pre-configuration parameter may be a link resource module related to the first link and a configuration parameter of the link resource module that are determined in advance before receiving the indication information. Optionally, before receiving the indication information, the baseband processor may query the identifier of the first resource module in a preset resource configuration relationship; and then inquiring parameters matched with the identification of the first resource module in a preset configuration parameter list to generate preset parameters. The terminal device may call the above-mentioned pre-configuration parameter in a preset storage area, and determine it as a resource configuration parameter. The method for obtaining the resource allocation parameters is not limited herein.
In one implementation, the baseband processor may determine whether the current link supports link switching based on terminal device capabilities; if yes, executing the step of generating the pre-configuration parameters. If the current link of the terminal device does not support the link switch, the step of generating the pre-configuration parameters is not performed.
The resource allocation relationship may include module identifiers required by different links. For example, the links corresponding to the carrier aggregation scenarios shown in the above table may be the following table:
taking the uplink of the terminal device from the uplink of the scene D to the uplink of the scene B as an example, the link resource modules involved in the link switching of the terminal device may include a baseband module 0-2, a radio frequency module 0-2, a local oscillation module 0-1, a power amplifier module 0-2, an antenna switch module 0-1 and an antenna module 0-1. The first resource module 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 calculate which modules are the first resource modules according to the control instruction of the CLCU through the CLRU in the baseband module, and further determine the configuration parameters of each first resource module according to a preset configuration parameter list. The configuration parameter list includes parameters corresponding to each resource module under different links.
It should be noted that the current link may have the capability of switching to a different link, that is, the current link may be switched to a different link. For example, the current link is a link corresponding to the scene D, and the current link may be switched to a link corresponding to the scene D or to a link corresponding to the scene C.
When determining the pre-configuration parameters, the baseband processor may determine the pre-configuration parameters corresponding to the current link when switching to a different link. The CLRU may query a resource module used by each alternative switching link in a resource configuration relation stored in a Non-Volatile Random-Access Memory (NVRAM) and query a pre-configured parameter corresponding to each alternative switching link, and after marking the alternative switching link, store each pre-configured parameter in a semi-static manner. For example, the current link is an N3 single stream link plus an N78 single stream link, and a resource module corresponding to the N3 frequency band in the current link may be switched to the N78 frequency band; the baseband processor may query the resource configuration corresponding to N78 based on the resource configuration relationship under the current link, and store the resource configuration in the following table manner:
after receiving the indication information, the CLCU in the baseband processor may send a scheduling instruction to the CLRU according to the first link corresponding to the indication information, so that the CLRU may send the preconfigured parameters corresponding to the first link to the CLDU; the CLDU may write the preconfiguration parameter corresponding to the first link into the DRAM in a register form, and after receiving the scheduling instruction of the CLCU, perform parameter configuration on the first resource module by using the preconfiguration parameter.
S202, a baseband processor adopts resource configuration parameters to set parameters of a first resource module; the first resource module is a module used in the first link.
The baseband processor may set parameters for each first resource module by using the above resource configuration parameters, so that the set first resource module may perform data transmission under the first link.
The baseband processor can set parameters of each first resource module according to a random sequence; the parameter setting may also be performed according to the preset sequence of each first resource module, which is not limited herein.
S203, the baseband processor releases resources of the second resource module; wherein the second resource module is a module that is used by the current link and is not used in the first link.
After completing the parameter setting of the first resource module, the baseband processor may perform resource release for the second resource module that is used by the current link and is not used in the first link.
According to the link establishment method, the baseband processor completes the establishment of the first link by carrying out parameter configuration on the first resource module and carrying out resource release on the second resource module; further, under the condition that the baseband processor performs parameter configuration on the first resource module through the pre-configuration parameters, calculation of the first resource module and parameter acquisition of the first resource module in the switching process can be completed before the terminal equipment receives the indication information, so that the baseband processor can directly perform parameter configuration on the first resource module through the pre-configuration parameters after receiving the indication information, and the link switching time delay is further reduced; furthermore, the baseband processor performs unified management on each resource module through the resource configuration relation and the configuration parameter list, so that signaling interaction in the link establishment process can be reduced, the expandability of link establishment can be improved, and when the terminal equipment supports links in other scenes, only the resource configuration relation needs to be optimized.
In one embodiment, the above-mentioned resource configuration parameters include a first parameter of a shared resource module and a second parameter of an unshared resource module; the shared resource module is a module used by both the first link and the current link; the non-shared resource module is a module that is used by the first link and is not used by the current link.
The baseband processor can inquire the identification of a first resource module used by a first link in a preset resource configuration relation and inquire the identification of a link resource module used by a current link in the preset resource configuration relation; further, the shared resource module and the non-shared resource module in the first resource module are determined by comparing the identification of the link resource module used by the current link with the identification of the first resource module.
The current link comprises a single stream link of a first frequency band (such as N3) and a single stream link of a second frequency band (such as N78); for example, the first link includes a dual-stream link of a second frequency band (e.g., N78), and referring to the uplink hardware architecture in fig. 3, the above-mentioned link switching procedure may be as shown in fig. 6. In fig. 6, the modules are connected by solid lines to form a current link; the modules are connected by a broken line to form a switched first link. As can be seen from fig. 6, 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 may determine, according to a preset configuration parameter list, a first parameter used by the shared module and a second parameter used by the non-shared module. Further, the baseband module may configure parameters of the non-shared resource module as the second parameters; then, the current parameter of the shared resource module is modified to the first parameter.
Fig. 7 is a flow chart of a link establishment method in an embodiment, where the embodiment relates to a process of creating a first link by a terminal device, and on the basis of the above embodiment, as shown in fig. 7, the step S102 includes:
s301, the baseband processor queries the identification of a first resource module used by a first link in a preset resource configuration relation.
S302, inquiring parameters matched with the identification of the first resource module in a preset configuration parameter list to obtain resource configuration parameters.
S303, configuring the first link resource module by adopting the resource configuration parameters.
The 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 obtains the resource configuration parameters corresponding to the first link through the resource configuration relation and the configuration parameter list, instead of obtaining the resource configuration parameters through the pre-configuration parameters. In addition, aiming at the condition of newly establishing a first link, the link resource module associated with the first link is the first resource module used by the first link, and does not comprise a module unused by the first link; therefore, the baseband processor does not need to perform resource release on the unused module of the first link.
According to the link establishment method, the base band processor completes the parameter configuration of the first resource module in the process of establishing the first link, so that signaling interaction between a digital base band system and a system where other link resource modules are located is avoided, and the establishment time delay of the first link is reduced.
In one embodiment, as shown in fig. 8, the above-mentioned link establishment method includes:
s401, the network equipment sends indication information for establishing a first frequency band single-stream link to the terminal equipment.
S402, a baseband processor in the terminal equipment queries an identifier of a first resource module used by a first frequency band single-stream link in a preset resource configuration relation.
S403, the baseband processor in the terminal equipment queries parameters matched with the identification of the first resource module used by the first frequency band single-stream link in a preset configuration parameter list to obtain the resource configuration parameters corresponding to the first frequency band single-stream link.
S404, a baseband processor in the terminal equipment adopts a resource configuration parameter corresponding to the first frequency band single-stream link to configure a first link resource module used by the first frequency band single-stream link.
Taking an NR system as an example, in the case where a terminal device accesses an N3 cell, a network device may notify the terminal device to establish an N3 single-flow link through a DCI message, and require that link establishment be completed after time a.
The CLCU in the baseband processing may schedule the CLRU to query the link resource according to carrier information such as the N3 center frequency point, the bandwidth, the subcarrier interval, etc. configured by the network device. The CLRU finds N3 single carrier link resource information from the resource allocation relationship stored in the NVRAM according to the carrier information, and then stores the information in the allocated memory space of the system. The CLRU will label 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 lookup instruction to the CLDU to instruct the CLDU to lookup configuration parameters of the resource module used by the N3 link. And inquiring parameters matched with the identification of the first resource module used by the first frequency band single-stream link in a configuration parameter list according to the number of each module, formatting each configuration parameter, and storing the configuration parameters in a DRAM in a register mode. The CLCU may send a parameter configuration indication to the CLCU according to the time a indicated by the network device and the link number of the N3 link. The CLDU may configure configuration parameters already stored in the DRAM to the various resource modules. The CLDU may complete the parameter configuration before Time a-D0-TD. Wherein, the TD is a transmission delay of the digital interface, and D0 is greater than the link switching period T. In the above-mentioned N3 link establishment process, the interaction between the processing units in the baseband processor may be seen in fig. 9.
S405, the network equipment sends indication information for establishing the second frequency band single-stream link to the terminal equipment.
S406, the baseband processor in the terminal equipment queries the identification of the first resource module used by the second frequency band single-stream link in a preset resource configuration relation.
S407, the baseband processor in the terminal equipment queries parameters matched with the identification of the first resource module used by the second frequency band single-stream link in a preset configuration parameter list to obtain the resource configuration parameters corresponding to the second frequency band single-stream link.
S408, the baseband processor in the terminal equipment adopts the resource configuration parameters corresponding to the second frequency band single stream link to configure the first link resource module used by the second frequency band single stream link.
Continuing to take the above NR system as an example, in the case that the terminal device accesses the N78 cell, the terminal device may notify the terminal device to establish an N78 single-stream link through a DCI message, and form uplink carrier aggregation with the N3 single-stream link. The network device may inform the terminal device to complete the link setup after TimeB.
Similar to the above-mentioned N78 single stream link establishment procedure, the above-mentioned N3 single stream link establishment procedure, as shown in fig. 9, the CLDU may complete parameter configuration of the N78 single stream link before Time B-D1-TD.
After S405, further includes:
s409, a baseband processor in the terminal equipment queries the identification of a first resource module used by the second frequency band double-flow link in a preset resource configuration relation.
S410, the baseband processor in the terminal equipment queries parameters matched with the identification of the first resource module in a preset configuration parameter list to generate preset parameters.
Continuing with the NR system as an example, after receiving the indication information for establishing the N78 single stream link, the CLCU may determine whether the combination of the N3 single stream link and the N78 single stream link supports link switching. If not, the baseband processor can complete the establishment of the N78 single-stream link according to the steps; if supported, it means that the N78 dual stream link after handover may use the resource module used by the N3 single stream link. The CLRU needs to query the resource configuration relation for the identification of the first resource module that needs to be used by the N78 dual-flow link, and send the identification to the CLDU after performing link label on the N78 dual-flow link. The CLDU may determine the shared resource module of the current link and the switched N78 dual-stream link based on the above link identifier, and store the configuration parameters of the shared resource module in the N78 dual-stream link in the DRAM in a register form to form the preconfiguration parameters.
S411, the network device sends indication information of the double-flow link switched to the second frequency band to the terminal device.
S412, a baseband processor of the terminal equipment acquires a pre-configuration parameter; the pre-configuration parameters comprise second parameters corresponding to the non-shared resource modules and first parameters corresponding to the shared resource modules.
S413, the baseband processor of the terminal equipment configures the parameters of the non-shared resource module as second parameters.
S414, the baseband processor of the terminal equipment modifies the current parameter of the shared resource module into the first parameter.
S415, the baseband processor of the terminal equipment releases the resources of the second resource module.
Continuing taking the above NR system as an example, after receiving DCI, the baseband processor in the terminal device obtains, by parsing, indication information for switching to the N78 dual-stream link, where the indication information requests the terminal device to switch from Time C to the N78 dual-stream link for data transmission.
Under the condition that the baseband processor in the terminal equipment acquires the pre-configuration parameters in advance, the CLCU only needs to schedule the CLDU to carry out parameter configuration, and the CLDU can sequentially complete the parameter configuration of the non-shared resource module used by the N78 double-flow link, the parameter configuration of the shared resource module used by the N78 double-flow link and the resource release of the second resource module used by the N3 based on the pre-configuration parameters stored in the DRAM. As shown in fig. 9, the CLDU may complete the parameter configuration of the N78 dual-flow link before TimeC-D1-TD. The CLDU can complete the parameter configuration of the non-shared resource module in the N78 dual-flow link before the Time C-T-TD (T is the minimum link switching period supported by the terminal), so that the data transmission of the N3 single-flow link is not affected. Then completing parameter configuration of a shared resource module of an N78 double-flow link before Time C-D2-TD (D2 < T), and releasing resources of a second resource module used by an N3 single-flow link; on this basis, the N78 dual stream link may perform data transmission after Time C and stop transmitting data on the N3 single stream link.
According to the link establishment method, the time requirements of the link switching period of the terminal equipment are met, more time can be reserved for data transmission, and the throughput rate of the terminal equipment is improved. For example, in the conventional method, 140 microseconds is required to switch the N3 single-stream link and the N78 double-stream link to the N78 double-stream link, but with the method in this embodiment, the link switching time can be compressed to 35 microseconds, and the link switching period is shortened by 75%. In addition, the link establishment is completed through the plurality of processing units in the baseband processor, so that the link establishment task can be processed in parallel, the link switching efficiency is further improved, and the link switching time delay is reduced.
It should be understood that, although the steps in the flowcharts of fig. 2-9 are shown in order as indicated by the arrows, these steps are not necessarily performed in order as indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in fig. 2-9 may include multiple sub-steps or stages that are not necessarily performed at the same time, but may be performed at different times, nor does the order in which the sub-steps or stages are performed necessarily occur in sequence, but may be performed alternately or alternately with at least a portion of the sub-steps or stages of other steps or other steps.
Fig. 10 is a block diagram of a link establishment apparatus of an embodiment. As shown in fig. 10, the above-mentioned apparatus includes:
a receiving module 10, configured to receive indication information sent by a network device; the indication information is used for indicating the terminal equipment to establish a first link;
a configuration module 20, configured to perform parameter configuration on 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 equipment.
In an embodiment, on the basis of the foregoing embodiment, the indication information is used to instruct the terminal device to newly establish the first link, or is used to instruct the terminal device to switch the current link to the first link.
In an embodiment, on the basis of the above embodiment, as shown in fig. 11, the instruction information is used to instruct the terminal device to switch the current link to the first link, where the configuration module 20 includes:
an obtaining unit 201, configured to obtain a resource configuration parameter related to the first link;
a setting unit 202, configured to set parameters for the first resource module by using the resource configuration parameters; the first resource module is a module used in the first link;
A releasing unit 203, configured to release resources of the second resource module; wherein the second resource module is a module that is used by the current link and is not used in the first link.
In an embodiment, on the basis of the foregoing embodiment, as shown in fig. 12, the foregoing apparatus further includes a generating module 30, configured to: before receiving the indication information, inquiring the identification of the first resource module in a preset resource configuration relation; inquiring parameters matched with the identification of the first resource module in a preset configuration parameter list to generate preset parameters; accordingly, the obtaining unit 201 is configured to determine the preconfiguration parameter as the resource configuration parameter.
In one embodiment, on the basis of the above embodiment, the above acquisition unit 201 is specifically configured to: inquiring the identification of the first resource module in a preset resource configuration relation; and inquiring parameters matched with the identification in a preset configuration parameter list to obtain the resource configuration parameters.
In an embodiment, on the basis of the foregoing embodiment, the resource configuration parameters include a first parameter of a shared resource module and a second parameter of an unshared resource module; the shared resource module is a module used by the first link and the current link; the non-shared resource module is a module that is used by the first link and is not used by the current link.
In one embodiment, on the basis of the above embodiment, the generating module 30 is further configured to: inquiring the identification of a link resource module used by the current link in a preset resource configuration relation; comparing the identification of the link resource module used by the current link with the identification of the first resource module, and determining the shared resource module and the non-shared resource module in the first resource module.
In one embodiment, on the basis of the above embodiment, the setting unit 202 is specifically configured to: configuring parameters of the non-shared resource module as the second parameters; and modifying the current parameter of the shared resource module into the first parameter.
In one embodiment, on the basis of the above embodiment, the generating module 30 is further configured to: determining whether the current link supports link switching according to the capability of the terminal equipment; if yes, executing the step of generating the pre-configuration parameters.
In an embodiment, on the basis of the above embodiment, the current link includes a single-stream link of a first frequency band and a single-stream link of a second frequency band; the first link includes a dual stream link of the second frequency band.
In one embodiment, based on the above embodiment, the configuration module 20 is specifically configured to: inquiring the identification of a first resource module used by the first link in a preset resource configuration relation; inquiring parameters matched with the identification of the first resource module in a preset configuration parameter list to obtain the resource configuration parameters; and configuring the first link resource module by adopting the resource configuration parameters.
In an embodiment, on the basis of the foregoing embodiment, the first link is used to implement carrier aggregation.
In an embodiment, on the basis of the foregoing embodiment, 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.
The implementation principle and technical effects of the link establishment device refer to the above method embodiments, and are not described herein.
The division of the individual modules in the above-described link establishment apparatus is for illustration only, and in other embodiments, the link establishment apparatus may be divided into different modules as needed to accomplish all or part of the functions of the above-described link establishment apparatus.
For specific limitations of the link establishment means, reference may be made to the above limitations of the link establishment method, and no further description is given here. The respective modules in the above-described link establishment apparatus may be implemented in whole or in part by software, hardware, and combinations thereof. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute operations corresponding to the above modules.
Fig. 13 is a schematic diagram of an internal structure of a terminal device in one 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 ), a POS (Point of Sales), a car-mounted computer, and a wearable device. The terminal device includes a processor and a memory connected by a system bus. Wherein the processor may comprise one or more processing units. The processor may be a CPU (Central Processing Unit ) or DSP (Digital Signal Processing, digital signal processor), etc. The memory may include a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The computer program is executable by a processor for implementing a link establishment method as provided in the following embodiments. The internal memory provides a cached operating environment for operating system computer programs in the non-volatile storage medium.
The implementation of each module in the link establishment apparatus provided in the embodiment of the present application may be in the form of a computer program. The computer program may run on a terminal or a server. Program modules of the computer program may be stored in the memory of the terminal device. Which when executed by a processor, performs the steps of the method described in the embodiments of the application.
The embodiment of the 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 a link establishment method.
Embodiments of the present application also provide a computer program product containing instructions that, when run on a computer, cause the computer to perform a link establishment method.
Any reference to memory, storage, database, or other medium used in the present application may include non-volatile and/or volatile memory. The nonvolatile Memory may include a ROM (Read-Only Memory), a PROM (Programmable Read-Only Memory ), an EPROM (Erasable Programmable Read-Only Memory, erasable programmable Read-Only Memory), an EEPROM (Electrically Erasable Programmable Read-Only Memory), or a flash Memory. Volatile memory can include RAM (Random Access Memory ), which acts as external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as SRAM (Static Random Access Memory ), DRAM (Dynamic Random Access Memory, dynamic random access memory), SDRAM (Synchronous Dynamic Random Access Memory ), double data rate DDR SDRAM (Double Data Rate Synchronous Dynamic Random Access memory, double data rate synchronous dynamic random access memory), ESDRAM (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 foregoing examples illustrate only a few embodiments of the application and are described in detail herein without thereby limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.
Claims (12)
1. A method for link establishment, applied to a baseband processor in a terminal device, comprising:
the baseband processor receives indication information sent by the network equipment; the indication information is used for indicating the terminal equipment to establish a first link or indicating the terminal equipment to switch the current link to the first link;
the baseband processor performs parameter configuration on a 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 equipment; the link resource module comprises a baseband module, a radio frequency module, a local oscillator module, a power amplifier module, an antenna switch module and an antenna module;
The indication information is used for indicating the base band processor to perform parameter configuration on the link resource module under the condition that the terminal equipment switches the current link to the first link, and the method comprises the following steps: the baseband processor acquires the resource configuration parameters related to the first link; the baseband processor adopts the resource configuration parameters to set parameters of the first resource module; the first resource module is a module used in the first link, and the first resource module is a related link resource module in the process of switching to the first link; the baseband processor releases resources of the second resource module; wherein the second resource module is a module that is used by the current link and is not used in the first link;
the indication information is used for indicating the terminal equipment to newly establish the first link, and the baseband processor performs parameter configuration on a link resource module, including: the baseband processor queries the identification of a first resource module used by the first link in a preset resource configuration relation; the first resource module is a link resource module associated with the first link; inquiring parameters matched with the identification of the first resource module in a preset configuration parameter list to obtain the resource configuration parameters; and configuring the first link resource module by adopting the resource configuration parameters.
2. The method of claim 1, wherein prior to the baseband processor obtaining the first link-related resource configuration parameters, further comprising:
before receiving the indication information, inquiring the identification of the first resource module in a preset resource configuration relation;
inquiring parameters matched with the identification of the first resource module in a preset configuration parameter list to generate preset parameters;
correspondingly, the baseband processor acquires the resource configuration parameters related to the first link, including:
and determining the pre-configuration parameters as the resource configuration parameters.
3. The method of claim 1, wherein the baseband processor obtaining the first link-related resource configuration parameter comprises:
inquiring the identification of the first resource module in a preset resource configuration relation;
and inquiring parameters matched with the identification in a preset configuration parameter list to obtain the resource configuration parameters.
4. A 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; the shared resource module is a module used by the first link and the current link; the non-shared resource module is a module that is used by the first link and is not used by the current link.
5. The method of claim 4, wherein after querying the identifier of the first resource module in the preset resource configuration relationship, further comprising:
inquiring the identification of a link resource module used by the current link in a preset resource configuration relation;
comparing the identification of the link resource module used by the current link with the identification of the first resource module, and determining the shared resource module and the non-shared resource module in the first resource module.
6. The method of claim 4, wherein the baseband processor parameter setting the first resource module using the resource configuration parameter comprises:
configuring parameters of the non-shared resource module as the second parameters;
and modifying the current parameter of the shared resource module into the first parameter.
7. The method of claim 2, wherein prior to generating the preconfigured parameters, further comprising:
determining whether the current link supports link switching according to the capability of the terminal equipment;
if yes, executing the step of generating the pre-configuration parameters.
8. The method of claim 2, wherein the current link comprises a single stream link of a first frequency band and a single stream link of a second frequency band; the first link includes a dual stream link of the second frequency band.
9. The method of claim 1, wherein the first link is used to implement carrier aggregation.
10. A link establishment apparatus, characterized by being applied to a baseband processor in a terminal device, comprising:
the receiving module is used for receiving the indication information sent by the network equipment; the indication information is used for indicating the terminal equipment to establish a first link or indicating the terminal equipment to switch the current link to the first link;
the configuration module is used for carrying out parameter configuration on the link resource module so as to establish the first link; the link resource module is a module related to the establishment of the first link in the terminal equipment; the link resource module comprises a baseband module, a radio frequency module, a local oscillator module, a power amplifier module, an antenna switch module and an antenna module;
the indication information is used for indicating the base band processor to perform parameter configuration on the link resource module under the condition that the terminal equipment switches the current link to the first link, and the method comprises the following steps: the baseband processor acquires the resource configuration parameters related to the first link; the baseband processor adopts the resource configuration parameters to set parameters of the first resource module; the first resource module is a module used in the first link, and the first resource module is a related link resource module in the process of switching to the first link; the baseband processor releases resources of the second resource module; wherein the second resource module is a module that is used by the current link and is not used in the first link;
The indication information is used for indicating the terminal equipment to newly establish the first link, and the baseband processor performs parameter configuration on a link resource module, including: the baseband processor queries the identification of a first resource module used by the first link in a preset resource configuration relation; the first resource module is a link resource module associated with the first link; inquiring parameters matched with the identification of the first resource module in a preset configuration parameter list to obtain the resource configuration parameters; and configuring the first link resource module by adopting the resource configuration parameters.
11. A terminal device comprising a memory and a processor, the memory having stored therein a computer program which, when executed by the processor, causes the processor to perform the steps of the method according to any of claims 1-9.
12. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method according to any of claims 1-9.
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