CN111491263B - Information sending and receiving method, device and storage medium - Google Patents
Information sending and receiving method, device and storage medium Download PDFInfo
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- CN111491263B CN111491263B CN201910073828.2A CN201910073828A CN111491263B CN 111491263 B CN111491263 B CN 111491263B CN 201910073828 A CN201910073828 A CN 201910073828A CN 111491263 B CN111491263 B CN 111491263B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
- H04L5/0055—Physical resource allocation for ACK/NACK
Abstract
The invention discloses an information sending and receiving method, an information sending and receiving device and a storage medium, which are used for reducing the resource overhead in the transmission process of system information requested by UE and improving the reliability of the system information sent requested by the UE. An information receiving method, comprising: receiving a broadcast message sent by a network side, wherein the broadcast message carries system information; and feeding back the receiving state of the system information to the network side according to the obtained system information feedback parameters. The information sending method comprises the following steps: after receiving a system information sending request sent by User Equipment (UE), sending a broadcast message to the UE, wherein the broadcast message carries the system information requested by the UE; and receiving a system information receiving state fed back by the UE according to the system information sending request.
Description
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to an information sending and receiving method, an information sending and receiving apparatus, and a storage medium.
Background
The information of the NR (New Radio, New air interface) system is mainly used for system access, cell selection, and cell-level Radio parameter configuration. The System Information is divided into MIB (Master Information Block) and a plurality of SIB (System Information Blocks) messages. The existing system information may be classified into two types, one is Minimum system information (Minimum SI) that needs to be broadcast, including MIB and SIB1, and the Other is remaining system information (Other SI). The Minimum SI is sent according to periodic broadcast, the Other SI does not exist all the time periodically, if the UE (User Equipment) needs the information, it needs to trigger the information cell request process, and after receiving the request, the base station can notify the UE through two ways of broadcast or dedicated signaling. For example, the UE can request the base station to send other SI by sending Msg1 or Msg3, and for Msg1, the base station sends the system information requested by the UE in a broadcast manner. For Msg3, the base station may inform the UE in both broadcast information and dedicated signaling.
For the dedicated signaling mode, whether the UE receives correctly can be known through ACK (Acknowledgement) and NACK (packet loss retransmission) feedback of HARQ (Hybrid Automatic Repeat reQuest). However, for the broadcast method, the base station has no way to know whether the UE receives the information correctly, and for the conventional LTE (Long Term Evolution), since all the system information is periodically broadcast, the UE receives the information periodically, and a failure in receiving the information once does not have a large influence. However, for the Other SI requested by the UE, once the UE does not correctly receive the system information broadcast by the base station, the UE needs to re-apply for the system information, which may cause additional processing overhead and time overhead.
Disclosure of Invention
The embodiment of the invention provides an information sending and receiving method, an information sending and receiving device and a storage medium, which are used for reducing the resource overhead in the transmission process of system information requested by UE and improving the reliability of the system information sent requested by the UE.
In a first aspect, an information receiving method is provided, including:
receiving a broadcast message sent by a network side, wherein the broadcast message carries system information;
and feeding back the receiving state of the system information to the network side according to the obtained system information feedback parameters.
Optionally, the system information feedback parameters at least include hybrid automatic repeat request, HARQ, information and redundancy version information; and
the system information feedback parameters are obtained according to the following procedures:
receiving a Physical Downlink Control Channel (PDCCH) which is transmitted by the network side and scrambled by using a system information radio network temporary identifier (SI-RNTI), wherein the PDCCH carries the HARQ information and redundancy version information;
and descrambling the received PDCCH by using the SI-RNTI, and extracting the HARQ information and the redundancy version information from the descrambled PDCCH.
Optionally, the system information feedback parameter further includes feedback time indication information; the PDCCH carries the feedback time indication information; and
according to the obtained system information feedback parameters, feeding back the receiving state of the system information to the network side, specifically comprising:
and feeding back the receiving state of the system information to the network side at the time indicated by the feedback time indication information according to the HARQ information and the redundancy version information.
Optionally, the system information feedback parameters further include system information feedback position information; and
obtaining the system information feedback position information according to the following procedures:
receiving a system information block SIB1 sent by the network side, wherein the SIB1 carries the system information feedback position information;
extracting the system information feedback location information from the SIB 1.
Optionally, the system information feedback position information includes a physical uplink control channel PUCCH frequency domain resource for feeding back the reception state.
Optionally, the information receiving method provided in the embodiment of the present invention further includes:
and feeding back the receiving state by using a media access control element (MAC CE), wherein the MAC CE at least comprises the system information type field and a receiving state field.
In a second aspect, an information sending method is provided, including:
after receiving a system information sending request sent by User Equipment (UE), sending a broadcast message to the UE, wherein the broadcast message carries the system information requested by the UE;
and receiving a system information receiving state fed back by the UE according to the system information sending request.
Optionally, the information sending method provided in the embodiment of the present invention further includes:
if the system information is determined not to be correctly received according to the receiving state, continuing to transmit the system information within the time point and the time window of transmitting the system information;
and stopping sending the system information if the system information is determined to be correctly received according to the receiving state.
Optionally, the information receiving method provided in the embodiment of the present invention further includes:
and if the system information receiving state fed back by the UE aiming at the system information sending request is not received within the preset time length, continuing sending the system information within the sending time point and the time window of the system information.
Optionally, before sending the broadcast message to the UE, the method further includes:
and sending a system information feedback parameter to the UE.
Optionally, the system information feedback parameters at least include hybrid automatic repeat request, HARQ, information and redundancy version information; and
sending a system information feedback parameter to the UE, specifically including:
and sending a Physical Downlink Control Channel (PDCCH) scrambled by using a system information radio network temporary identifier (SI-RNTI) to the UE, wherein the PDCCH carries the HARQ information and the redundancy version information.
Optionally, the system information feedback parameter further includes feedback time indication information; the PDCCH carries the feedback time indication information; and
receiving a system information receiving state fed back by the UE in response to the system information sending request specifically includes:
and receiving the UE to feed back the receiving state of the system information to the network side at the time indicated by the feedback time indication information according to the HARQ information and the redundancy version information.
Optionally, the system information feedback parameters further include system information feedback position information; and
before transmitting the broadcast message to the UE, further comprising:
and sending the system information feedback position information to the UE.
Optionally, the system information feedback position information includes a physical uplink control channel PUCCH frequency domain resource for feeding back the reception state.
Optionally, receiving a system information receiving state fed back by the UE in response to the system information sending request specifically includes:
and receiving a system information receiving state of the UE for sending the request feedback for the system information by using a media access control element (MAC CE), wherein the MAC CE at least comprises the system information type field and a receiving state field.
In a third aspect, an information transmitting apparatus is provided, including:
a receiving unit, configured to receive a broadcast message sent by a network side, where the broadcast message carries system information;
and the feedback unit is used for feeding back the receiving state of the system information to the network side according to the obtained system information feedback parameters.
Optionally, the system information feedback parameters at least include hybrid automatic repeat request, HARQ, information and redundancy version information; and
the apparatus further comprises an extraction unit, wherein:
the receiving unit is further configured to receive a physical downlink control channel PDCCH which is sent by the network side and scrambled by using a system information radio network temporary identifier SI-RNTI, where the PDCCH carries the HARQ information and redundancy version information;
the extracting unit is configured to descramble the received PDCCH by using the SI-RNTI, and extract the HARQ information and the redundancy version information from the descrambled PDCCH.
Optionally, the system information feedback parameter further includes feedback time indication information; the PDCCH carries the feedback time indication information; and
the feedback unit is specifically configured to feed back, according to the HARQ information and the redundancy version information, a receiving state of the system information to the network side at a time indicated by the feedback time indication information.
Optionally, the system information feedback parameters further include system information feedback position information; and
the receiving unit is further configured to receive a system information block SIB1 sent by the network side, where the SIB1 carries the system information feedback location information;
the extracting unit is further configured to extract the system information feedback location information from the SIB 1.
Optionally, the system information feedback position information includes a physical uplink control channel PUCCH frequency domain resource for feeding back the reception state.
Optionally, the feedback unit is further configured to feedback the receiving status by using a media access control element MAC CE, where the MAC CE at least includes the system information type field and the receiving status field.
In a fourth aspect, an information transmitting apparatus is provided, including:
a sending unit, configured to send a broadcast message to user equipment UE after receiving a system information sending request sent by the UE, where the broadcast message carries system information requested by the UE;
a receiving unit, configured to receive a system information receiving status fed back by the UE in response to the system information sending request.
Optionally, the sending unit is further configured to continue sending the system information at a sending time point and within a time window of the system information if it is determined that the system information is not correctly received according to the receiving status; and stopping sending the system information if the system information is determined to be correctly received according to the receiving state.
Optionally, the sending unit is further configured to continue sending the system information at the sending time point and within the time window of the system information if a system information receiving state fed back by the UE for the system information sending request is not received within a preset time length.
Optionally, the sending unit is further configured to send a system information feedback parameter to the UE before sending the broadcast message to the UE.
Optionally, the system information feedback parameters at least include hybrid automatic repeat request, HARQ, information and redundancy version information; and
the sending unit is specifically configured to send, to the UE, a physical downlink control channel PDCCH scrambled by using a system information radio network temporary identifier SI-RNTI, where the PDCCH carries the HARQ information and redundancy version information.
Optionally, the system information feedback parameter further includes feedback time indication information; the PDCCH carries the feedback time indication information; and
the receiving unit is specifically configured to receive the receiving state of the system information fed back to the network side by the UE at the time indicated by the feedback time indication information according to the HARQ information and the redundancy version information.
Optionally, the system information feedback parameters further include system information feedback position information; and
the sending unit is further configured to send the system information feedback location information to the UE before sending a broadcast message to the UE.
Optionally, the system information feedback position information includes a physical uplink control channel PUCCH frequency domain resource for feeding back the reception state.
Optionally, the receiving unit is specifically configured to receive a system information receiving status of the UE sending a request feedback for the system information by using a media access control element MAC CE, where the MAC CE at least includes the system information type field and a receiving status field.
In a fifth aspect, a communication apparatus is provided, including: a processor, a memory, and a transceiver; the memory stores a computer program, and the processor is configured to read the program in the memory and execute any one of the steps of the information sending method and/or the information receiving method.
In a sixth aspect, a computer storage medium is provided, which stores computer-executable instructions for causing a computer to perform any one of the steps of the above-mentioned information transmitting method and/or information receiving method.
In the information sending and receiving method, device and storage medium provided by the embodiment of the invention, after the UE receives the broadcast message sent by the network side, the UE feeds back the receiving state of the system information to the network side according to the system information feedback parameter, so that the network side can judge whether the system information needs to be sent continuously according to the receiving state, and thus, the UE does not need to additionally apply for the network side to resend the system information, and the overhead in the transmission process of the system information requested by the UE is reduced.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and do not limit the invention. In the drawings:
fig. 1 is a schematic diagram illustrating an implementation flow of an information receiving method according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an implementation flow of an information sending method in the embodiment of the present invention;
FIG. 3 is a schematic structural diagram of an information receiving apparatus according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of an information sending apparatus according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a communication device according to an embodiment of the present invention.
Detailed Description
In order to reduce resource overhead in a process of requesting system information transmission by a UE, embodiments of the present invention provide an information sending and receiving method, an apparatus and a storage medium.
The terms "first," "second," and the like in the description and in the claims, and in the drawings, in the embodiments of the invention are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced otherwise than as specifically illustrated or described herein.
Reference herein to "a plurality or a number" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings of the specification, it being understood that the preferred embodiments described herein are merely for illustrating and explaining the present invention, and are not intended to limit the present invention, and that the embodiments and features of the embodiments in the present invention may be combined with each other without conflict.
As shown in fig. 1, which is a schematic diagram of an implementation flow of an information receiving method implemented by a UE, the method may include the following steps:
and S11, receiving a broadcast message sent by the network side, wherein the broadcast message carries system information.
In particular, the UE may request system information from the base station in two ways, i.e., Msg1 or Msg3, where the system information includes system information other than the system information periodically sent by the base station. The base station sends the system information requested by the base station to the UE through a broadcast message aiming at the request sent by the UE. For example, the base station may transmit its requested system information to the UE through a BCCH (broadcast control channel). Specifically, there may be a MAC (medium access control) entity that reads the system information transmitted by the base station from the BCCH.
And S12, feeding back the receiving state of the system information to the network side according to the obtained system information feedback parameters.
In this step, the UE may feed back a receiving state of the system information to the base station according to the obtained system information feedback parameter, where the receiving state of the system information includes two states, namely correct receiving state and incorrect receiving state.
The system information feedback parameters may include HARQ (hybrid automatic repeat request) information and redundancy version information, and in specific implementation, the HARQ information and the redundancy version information may be obtained according to the following procedures: receiving a PDCCH (physical downlink control channel) which is transmitted by a network side and scrambled by using an SI-RNTI (system information radio network temporary identifier), wherein the PDCCH carries HARQ (hybrid automatic repeat request) information and redundancy version information; and descrambling the received PDCCH by using the SI-RNTI, and extracting HARQ information and redundancy version information from the descrambled PDCCH.
In specific implementation, according to SIB scheduling information provided by a network side, a MAC entity receives a PDCCH scrambled by using SI-RNTI, descrambles the received PDCCH by using the SI-RNTI, extracts HARQ information and redundancy version information from the PDCCH, and improves the HARQ information and the redundancy version information to a physical layer, if the received system information is determined to be system information requested by UE to the network side, the physical layer feeds back the receiving state of the system information to the network side according to the HARQ information and the redundancy version information carried in the PDCCH.
In an embodiment, the system information feedback parameter may further include feedback time indication information, the PDCCH may further carry the feedback time indication information, if the PDCCH carries the feedback time indication information, the MAC entity obtains the feedback time indication information after descrambling the received PDCCH using the SI-RNTI, and the physical layer feeds back a receiving state of the system information to the network side according to the time indicated by the information. Specifically, the UE may feed back the receiving state of the system information to the network side at the time indicated by the feedback time indication information according to the HARQ information and the redundancy version information.
In one embodiment, the system information feedback parameters may further include system information feedback location information. In this embodiment, the UE may obtain the system information feedback location information according to the following procedure: receiving a system information block SIB1 sent by the network side, wherein the SIB1 carries the system information feedback position information; extracting the system information feedback location information from the SIB 1. Wherein the system information feedback position information includes PUCCH (physical uplink control channel) frequency domain resources for feeding back the reception state. Based on this, the UE may feed back the receiving state of the system information to the network side at the resource location corresponding to the system information feedback location information at the time indicated by the feedback time indication information according to the HARQ information and the redundancy version information carried in the PDCCH.
In another embodiment, if there is uplink resource allocation for the UE, in this embodiment of the present invention, a MAC CE (control element) may be further added for feeding back the receiving status of the system information. In specific implementation, the newly added MAC CE at least includes a system information Type field (SI Type) and a reception status field (ACK/NACK), where the system information Type and the Type of the system information indicating the current request of the UE indicate whether the system information requested by the UE is correctly received, and the reception status includes two statuses, namely ACK (correctly received) and NACK (incorrectly received). As shown in table 1, it is a possible data structure schematic of the MAC CE:
TABLE 1
| SI Type | ACK/NACK |
And the base station determines whether the system information requested by the UE needs to be retransmitted or not according to the system information receiving state fed back by the UE. Specifically, if it is determined that the system information is not correctly received according to the reception state, the system information is continuously transmitted within a transmission time point and a time window of the system information; and stopping sending the system information if the system information is determined to be correctly received according to the receiving state. In specific implementation, if the base station does not receive the system information receiving state fed back by the UE for the system information sending request within a preset time period, the base station continues to send the system information at the sending time point and within the time window of the system information.
Correspondingly, an embodiment of the present invention further provides an information sending method implemented by a base station side, as shown in fig. 2, the method may include the following steps:
s21, after receiving the system information sending request sent by the UE, sending the broadcast message to the UE.
The broadcast message carries system information requested by a UE (user equipment).
S22, receiving the system information receiving status of the UE for the system information transmission request feedback.
Optionally, the information sending method provided in the embodiment of the present invention may further include:
if the system information is determined not to be correctly received according to the receiving state, continuing to transmit the system information within the time point and the time window of transmitting the system information;
and stopping sending the system information if the system information is determined to be correctly received according to the receiving state.
Optionally, the information sending method provided in the embodiment of the present invention may further include:
and if the system information receiving state fed back by the UE aiming at the system information sending request is not received within the preset time length, continuing sending the system information within the sending time point and the time window of the system information.
Optionally, before sending the broadcast message to the UE, the method further includes:
and sending a system information feedback parameter to the UE.
The system information feedback parameters at least comprise hybrid automatic repeat request (HARQ) information and redundancy version information; and
sending a system information feedback parameter to the UE, which specifically includes:
and sending a Physical Downlink Control Channel (PDCCH) scrambled by using a system information radio network temporary identifier (SI-RNTI) to the UE, wherein the PDCCH carries the HARQ information and the redundancy version information.
Optionally, the system information feedback parameter further includes feedback time indication information; the PDCCH carries the feedback time indication information; and
receiving a system information receiving state fed back by the UE in response to the system information sending request specifically includes:
and receiving the UE to feed back the receiving state of the system information to the network side at the time indicated by the feedback time indication information according to the HARQ information and the redundancy version information.
Optionally, the system information feedback parameter further includes system information feedback position information; and
before transmitting the broadcast message to the UE, the method further includes:
and sending the system information feedback position information to the UE.
Optionally, the system information feedback position information includes a physical uplink control channel PUCCH frequency domain resource for feeding back the reception state.
Optionally, receiving a system information receiving state fed back by the UE in response to the system information sending request specifically includes:
and receiving a system information receiving state of the UE for sending the request feedback for the system information by using a media access control element (MAC CE), wherein the MAC CE at least comprises the system information type field and a receiving state field.
In the information sending and receiving method provided by the embodiment of the invention, a feedback mechanism of the receiving state of the system information is provided for the request type system information, so that when the UE does not correctly receive the system information requested by the UE, the UE does not need to send the request to the base station of the network side again, the resource overhead is saved, and meanwhile, the network side can determine whether the system information requested by the UE is correctly received according to the receiving state of the system information fed back by the UE, thereby improving the reliability of sending the system information.
Based on the same inventive concept, the embodiments of the present invention further provide an information sending apparatus and an information receiving apparatus, respectively, and because the principles of the apparatus for solving the problems are similar to the information sending method and the information receiving method, respectively, the implementation of the apparatus may refer to the implementation of the method, and repeated details are not repeated.
As shown in fig. 3, which is a schematic structural diagram of an information receiving apparatus according to an embodiment of the present invention, the information receiving apparatus includes:
a receiving unit 31, configured to receive a broadcast message sent by a network side, where the broadcast message carries system information;
a feedback unit 32, configured to feed back a receiving state of the system information to the network side according to the obtained system information feedback parameter.
Optionally, the system information feedback parameters at least include hybrid automatic repeat request, HARQ, information and redundancy version information; and
the apparatus further comprises an extraction unit, wherein:
the receiving unit is further configured to receive a physical downlink control channel PDCCH which is sent by the network side and scrambled by using a system information radio network temporary identifier SI-RNTI, where the PDCCH carries the HARQ information and redundancy version information;
the extracting unit is configured to descramble the received PDCCH by using the SI-RNTI, and extract the HARQ information and the redundancy version information from the descrambled PDCCH.
Optionally, the system information feedback parameter further includes feedback time indication information; the PDCCH carries the feedback time indication information; and
the feedback unit is specifically configured to feed back, according to the HARQ information and the redundancy version information, a receiving state of the system information to the network side at a time indicated by the feedback time indication information.
Optionally, the system information feedback parameters further include system information feedback position information; and
the receiving unit is further configured to receive a system information block SIB1 sent by the network side, where the SIB1 carries the system information feedback location information;
the extracting unit is further configured to extract the system information feedback location information from the SIB 1.
Optionally, the system information feedback position information includes a physical uplink control channel PUCCH frequency domain resource for feeding back the reception state.
Optionally, the feedback unit is further configured to feedback the receiving status by using a media access control element MAC CE, where the MAC CE at least includes the system information type field and the receiving status field.
As shown in fig. 4, which is a schematic structural diagram of an information sending apparatus according to an embodiment of the present invention, the information sending apparatus includes:
a sending unit 41, configured to send a broadcast message to a user equipment UE after receiving a system information sending request sent by the UE, where the broadcast message carries system information requested by the UE;
a receiving unit 42, configured to receive a system information receiving status of the UE for the system information sending request feedback.
Optionally, the sending unit is further configured to continue sending the system information at a sending time point and within a time window of the system information if it is determined that the system information is not correctly received according to the receiving status; and stopping sending the system information if the system information is determined to be correctly received according to the receiving state.
Optionally, the sending unit is further configured to continue sending the system information at the sending time point and within the time window of the system information if a system information receiving state fed back by the UE for the system information sending request is not received within a preset time length.
Optionally, the sending unit is further configured to send a system information feedback parameter to the UE before sending the broadcast message to the UE.
Optionally, the system information feedback parameters at least include hybrid automatic repeat request, HARQ, information and redundancy version information; and
the sending unit is specifically configured to send, to the UE, a physical downlink control channel PDCCH scrambled by using a system information radio network temporary identifier SI-RNTI, where the PDCCH carries the HARQ information and redundancy version information.
Optionally, the system information feedback parameter further includes feedback time indication information; the PDCCH carries the feedback time indication information; and
the receiving unit is specifically configured to receive the receiving state of the system information fed back to the network side by the UE at the time indicated by the feedback time indication information according to the HARQ information and the redundancy version information.
Optionally, the system information feedback parameters further include system information feedback position information; and
the sending unit is further configured to send the system information feedback location information to the UE before sending a broadcast message to the UE.
Optionally, the system information feedback position information includes a physical uplink control channel PUCCH frequency domain resource for feeding back the reception state.
Optionally, the receiving unit is specifically configured to receive a system information receiving status of the UE sending a request feedback for the system information by using a media access control element MAC CE, where the MAC CE at least includes the system information type field and a receiving status field.
For convenience of description, the above parts are separately described as modules (or units) according to functional division. Of course, the functionality of the various modules (or units) may be implemented in the same or in multiple pieces of software or hardware in practicing the invention.
Based on the same technical concept, the embodiment of the present application further provides a communication device, which can implement the method in the foregoing embodiment.
Referring to fig. 5, a schematic structural diagram of a communication device according to an embodiment of the present invention is shown in fig. 5, where the communication device may include: a processor 501, a memory 502, a transceiver 503, and a bus interface.
The processor 501 is responsible for managing the bus architecture and general processing, and the memory 502 may store data used by the processor 501 in performing operations. The transceiver 503 is used to receive and transmit data under the control of the processor 501.
The bus architecture may comprise any number of interconnected buses and bridges, with one or more processors, represented by processor 501, and various circuits, represented by memory 502, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The processor 501 is responsible for managing the bus architecture and general processing, and the memory 502 may store data used by the processor 501 in performing operations.
The process disclosed in the embodiment of the present invention may be applied to the processor 501, or implemented by the processor 501. In implementation, the steps of the signal processing flow may be implemented by integrated logic circuits of hardware or instructions in the form of software in the processor 501. The processor 501 may be a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof that may implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present invention. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the BWP switching method based on the downlink control signaling disclosed in the embodiments of the present invention may be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 502, and the processor 501 reads the information in the memory 502 and completes the steps of the signal processing flow in combination with the hardware thereof.
Specifically, the processor 501 is configured to read a program in a memory and execute any one of the steps of the information sending method or the information receiving method.
Based on the same technical concept, the embodiment of the application also provides a computer storage medium. The computer-readable storage medium stores computer-executable instructions for causing the computer to perform any one of the steps of the aforementioned information transmitting method or information receiving method.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (30)
1. An information receiving method, applied to a User Equipment (UE), includes:
receiving a broadcast message sent by a network side, wherein the broadcast message carries system information;
according to system information feedback parameters which are obtained from the network side and at least comprise hybrid automatic repeat request (HARQ) information, redundancy version information and feedback time indication information, the method for feeding back the receiving state of the system information to the network side specifically comprises the following steps: and feeding back the receiving state of the system information to the network side at the time indicated by the feedback time indication information according to the HARQ information and the redundancy version information.
2. The method of claim 1, wherein the system information feedback parameters are obtained according to the following procedure:
receiving downlink control information transmitted on a Physical Downlink Control Channel (PDCCH) scrambled by using a system information radio network temporary identifier (SI-RNTI) and sent by the network side, wherein the downlink control information carries the HARQ information and redundancy version information;
and descrambling the received downlink control information by using the SI-RNTI, and extracting the HARQ information and the redundancy version information from the descrambled downlink control information.
3. The method of claim 2, wherein the downlink control information carries the feedback time indication information.
4. The method of claim 2 or 3, wherein the system information feedback parameters further comprise system information feedback location information; and
obtaining the system information feedback position information according to the following procedures:
receiving a system information block SIB1 sent by the network side, wherein the SIB1 carries the system information feedback position information;
extracting the system information feedback frequency domain resource location information from the SIB 1.
5. The method of claim 4, wherein the system information feedback frequency domain resource location information comprises feeding back Physical Uplink Control Channel (PUCCH) frequency domain resources used by the reception state.
6. The method of claim 1, further comprising:
and feeding back the receiving state by using a media access control element (MAC CE), wherein the MAC CE at least comprises the system information type field and a receiving state field.
7. An information sending method is applied to a network side, and comprises the following steps:
after receiving a system information sending request sent by User Equipment (UE), sending a broadcast message to the UE, wherein the broadcast message carries the system information requested by the UE;
before sending the broadcast message to the UE, the method further includes: sending system information feedback parameters to the UE, wherein the system information feedback parameters at least comprise hybrid automatic repeat request (HARQ) information, redundancy version information and feedback time indication information;
receiving a system information receiving state fed back by the UE in response to the system information sending request specifically includes: and receiving the UE to feed back the receiving state of the system information to the network side at the time indicated by the feedback time indication information according to the HARQ information and the redundancy version information.
8. The method of claim 7, further comprising:
if the system information is determined not to be correctly received according to the receiving state, continuing to transmit the system information within the time point and the time window of transmitting the system information;
and stopping sending the system information if the system information is determined to be correctly received according to the receiving state.
9. The method of claim 7, further comprising:
and if the system information receiving state fed back by the UE aiming at the system information sending request is not received within the preset time length, continuing sending the system information within the sending time point and the time window of the system information.
10. The method of claim 7, wherein sending system information feedback parameters to the UE specifically comprises:
and sending downlink control information transmitted on a Physical Downlink Control Channel (PDCCH) scrambled by using a system information radio network temporary identifier (SI-RNTI) to the UE, wherein the downlink control information carries the HARQ information and redundancy version information.
11. The method of claim 10, wherein the downlink control information carries the feedback time indication information.
12. The method of claim 10 or 11, wherein the system information feedback parameters further include system information feedback location information; and
before transmitting the broadcast message to the UE, further comprising:
and sending the system information feedback frequency domain resource position information to the UE.
13. The method of claim 12, wherein the system information feedback frequency domain resource location information comprises feeding back Physical Uplink Control Channel (PUCCH) frequency domain resources used by the reception state.
14. The method of claim 7, wherein receiving a system information reception status of the UE for the system information transmission request feedback specifically comprises:
and receiving a system information receiving state fed back by the UE aiming at the system information sending request by using a media access control element (MAC CE), wherein the MAC CE at least comprises the system information type field and a receiving state field.
15. An information receiving apparatus, applied to a user equipment, includes:
a receiving unit, configured to receive a broadcast message sent by a network side, where the broadcast message carries system information;
a feedback unit, configured to feed back a receiving state of the system information to the network side according to a system information feedback parameter, which is obtained from the network side and at least includes HARQ information, redundancy version information, and feedback time indication information, and specifically configured to: and feeding back the receiving state of the system information to the network side at the time indicated by the feedback time indication information according to the HARQ information and the redundancy version information.
16. The apparatus of claim 15, further comprising an extraction unit, wherein:
the receiving unit is further configured to receive downlink control information transmitted on a physical downlink control channel PDCCH scrambled by using a system information radio network temporary identifier SI-RNTI and sent by the network side, where the downlink control information carries the HARQ information and redundancy version information;
the extracting unit is configured to use the SI-RNTI to descramble the received downlink control information, and extract the HARQ information and the redundancy version information from the descrambled downlink control information.
17. The apparatus of claim 16, wherein the downlink control information carries the feedback time indication information.
18. The apparatus of claim 16 or 17, wherein the system information feedback parameters further comprise system information feedback frequency domain resource location information; and
the receiving unit is further configured to receive a system information block SIB1 sent by the network side, where the SIB1 carries the system information feedback location information;
the extracting unit is further configured to extract the system information feedback frequency domain resource location information from the SIB 1.
19. The apparatus of claim 18, wherein the system information feedback frequency domain resource location information comprises feeding back Physical Uplink Control Channel (PUCCH) frequency domain resources used by the reception state.
20. The apparatus of claim 15,
the feedback unit is further configured to feedback the receiving status by using a media access control element MAC CE, where the MAC CE at least includes the system information type field and a receiving status field.
21. An information transmission apparatus, applied to a network side, includes:
a sending unit, configured to send a broadcast message to a user equipment UE after receiving a system information sending request sent by the UE, where the broadcast message carries system information requested by the UE, and send a system information feedback parameter to the UE before sending the broadcast message to the UE, where the system information feedback parameter at least includes HARQ information, redundancy version information, and feedback time indication information;
a receiving unit, configured to receive a system information receiving state that the UE sends a request feedback for the system information, and specifically, to receive that the UE feeds back the receiving state of the system information to the network side at the time indicated by the feedback time indication information according to the HARQ information and the redundancy version information.
22. The apparatus of claim 21,
the sending unit is further configured to continue sending the system information at a sending time point and within a time window of the system information if it is determined that the system information is not correctly received according to the receiving state; and stopping sending the system information if the system information is determined to be correctly received according to the receiving state.
23. The apparatus of claim 21,
the sending unit is further configured to continue sending the system information at the sending time point and within the time window of the system information if a system information receiving state fed back by the UE for the system information sending request is not received within a preset time length.
24. The apparatus according to claim 21, wherein the sending unit is specifically configured to send, to the UE, downlink control information transmitted on a physical downlink control channel PDCCH scrambled by using a system information radio network temporary identity SI-RNTI, where the downlink control information carries the HARQ information and redundancy version information.
25. The apparatus of claim 24, wherein the downlink control information carries the feedback time indication information.
26. The apparatus of claim 24 or 25, wherein the system information feedback parameters further comprise system information feedback frequency domain resource location information; and
the sending unit is further configured to send the system information feedback frequency domain resource location information to the UE before sending the broadcast message to the UE.
27. The apparatus of claim 26, wherein the system information feedback frequency domain resource location information comprises feeding back Physical Uplink Control Channel (PUCCH) frequency domain resources used by the reception state.
28. The apparatus of claim 21,
the receiving unit is specifically configured to receive a system information receiving state of the UE for the system information transmission request feedback by using a media access control element MAC CE, where the MAC CE at least includes the system information type field and a receiving state field.
29. A communications apparatus, comprising: a processor, a memory, and a transceiver; wherein the memory stores a computer program, and the processor is configured to read the program stored in the memory and execute the steps of the method according to any one of claims 1 to 14.
30. A computer-readable storage medium having stored thereon computer-executable instructions for causing a computer to perform the steps of the method of any one of claims 1 to 14.
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| CN117858027A (en) * | 2022-09-29 | 2024-04-09 | 大唐移动通信设备有限公司 | Method, device and equipment for feeding back broadcast message and acquiring public configuration information |
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| CN102104855A (en) * | 2009-12-17 | 2011-06-22 | 中兴通讯股份有限公司 | Method and system for upgrading system messages |
| CN104782185A (en) * | 2012-09-13 | 2015-07-15 | Lg电子株式会社 | Operating method for acquiring system information in wireless communication system, and apparatus for supporting same |
| CN108496404A (en) * | 2018-03-16 | 2018-09-04 | 北京小米移动软件有限公司 | System message asks method of adjustment and device and user equipment |
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| CN102104855A (en) * | 2009-12-17 | 2011-06-22 | 中兴通讯股份有限公司 | Method and system for upgrading system messages |
| CN104782185A (en) * | 2012-09-13 | 2015-07-15 | Lg电子株式会社 | Operating method for acquiring system information in wireless communication system, and apparatus for supporting same |
| CN108496404A (en) * | 2018-03-16 | 2018-09-04 | 北京小米移动软件有限公司 | System message asks method of adjustment and device and user equipment |
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