CN110690944A - Method and device for transmitting and determining priority of channel state information, storage medium and user equipment - Google Patents
Method and device for transmitting and determining priority of channel state information, storage medium and user equipment Download PDFInfo
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- CN110690944A CN110690944A CN201910918889.4A CN201910918889A CN110690944A CN 110690944 A CN110690944 A CN 110690944A CN 201910918889 A CN201910918889 A CN 201910918889A CN 110690944 A CN110690944 A CN 110690944A
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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
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
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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
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0026—Transmission of channel quality indication
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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
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
Abstract
A method and device for transmitting and determining the priority of channel state information, a storage medium and a user device are provided, the method for transmitting the priority of the channel state information comprises the following steps: determining priority information of the channel state information; and sending control information, wherein the control information comprises priority information of the channel state information. The technical scheme of the invention can realize the determination of the priority of the channel state information after the CSI is introduced.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for transmitting and determining a priority of channel state information, a storage medium, and a user equipment.
Background
Vehicle-to-evolution (V2X) is a key technology of future intelligent transportation systems, and mainly studies Vehicle data transmission schemes based on 3rd Generation Partnership Project (3 GPP) communication protocols. V2X communication includes Vehicle to Vehicle communication (V2V), Vehicle to roadside Infrastructure communication (V2I), and Vehicle to pedestrian communication (V2P). The application of V2X will improve driving safety, reduce congestion and vehicle energy consumption, improve traffic efficiency and vehicle-mounted entertainment information, etc.
In V2X communication, V2V communication is a different communication mode from that of ordinary wireless cellular network communication, in the traditional cellular network, user equipment communicates with base station equipment, and in V2V communication, user equipment directly communicates with user equipment, and a link between the user equipment and the user equipment is called a direct link (SL). Although the direct link is a direct communication between the user equipment and the user equipment, the transmission on the direct link is still controlled in whole or in part by the base station equipment. That is, there is still a portion of the control information that needs to be transmitted between the base station and the user equipment. In the 4G Long Term Evolution (LTE) communication system, V2X sidelink communication is based on broadcast communication, and adopts a "one-to-all" communication mode. In a New Radio (NR) communication system of 5G, unicast V2X communication is introduced, and a one-to-one communication mode is adopted. In this case, in order to improve the transmission efficiency of the sending device, the receiving device may feed back Channel State Information (CSI) to the sending device to assist the sending device to adjust the sending parameters according to the Channel condition between the sending device and the receiving device. The CSI may be carried by a Control Element (CE) of a Media Access Control (MAC) layer, and a final result is referred to as CSI MAC CE. CSI may also be carried directly through physical layer control signaling.
Generally, there may be multiple services of data to be transmitted by a sending device, and after the sending device obtains a block of transmission resources, the next step is to consider placing the data belonging to different services on the block of resources, and this procedure is called logical channel priority procedure (LCP) in the 3GPP protocol. In V2Xsidelink, different services are embodied by different logical channels (local channels), source addresses (source addresses) and destination addresses (destination addresses). There may be several logic channels under the combination of the same group of source address and destination address, each logic channel has a priority, and the essence of the LCP process is to put the service data carried by the logic channel onto a transmission resource according to the priority of the logic channel and a certain rule. In the LTE system, the LCP procedure of V2X can be described simply as follows:
step 0: firstly, the logical channel screening is completed, and the logical channel participating in the LCP process is screened out according to the parameters of the transmission resources and the configuration and the parameters of the logical channel. For example, in V2X, a logical channel may only be transmitted on some carriers, and if the carrier where the current transmission resource is located is not the carrier that the logical channel allows transmission, the logical channel is excluded from the LCP procedure; step 1: selecting a source address and/or a target address corresponding to a logical channel with the highest priority from the logical channels to be transmitted; step 2: allocating transmission resources for the logical channel with the highest priority to be transmitted in the source address and/or the target address determined by Step 1; step 3: if the residual resources exist, the transmission resources are allocated to the logical channels under the target address according to the priority from high to low until the transmission resources are exhausted or the data of the logical channels are exhausted.
In addition, on the direct link, there is also a sensing (sending) process, when sending user equipment to send data to be transmitted, if sending resources are not allocated by the base station, the sending user equipment needs to execute the sensing process, so as to preempt and reserve the sending resources, the sensing process also needs to consider the priority of the data to be transmitted, and the parameters of the data with different priorities, such as the size of resources allowed to be preempted, the occupied resource ratio, the transmission power, and the like, may be different, for example, for data with high priority, under certain circumstances, transmission is allowed on resources already occupied by low priority.
However, in the current V2X LCP procedure and sensing procedure, the problem of how to determine the priority of the channel state information after the introduction of the CSI feedback is not considered.
Disclosure of Invention
The technical problem solved by the invention is how to realize the determination of the priority of the channel state information after the introduction of the CSI.
In order to solve the above technical problem, an embodiment of the present invention provides a priority sending method for channel state information, where the priority sending method for channel state information includes: determining priority information of the channel state information; and sending control information, wherein the control information comprises priority information of the channel state information.
Optionally, the determining the priority information of the channel state information includes: determining a reference logical channel, and adding the identification information of the reference logical channel into the priority information; determining a ratio of the priority of the channel state information to the priority of the reference logical channel to add the priority information.
Optionally, the determining the priority information of the channel state information includes: determining a reference logical channel, and adding the identification information of the reference logical channel into the priority information; determining a difference between the priority of the channel state information and the priority of the reference logical channel to add the priority information.
Optionally, the determining the reference logical channel includes: determining the reference logical channel from logical channels in the same transmission link as the signaling carrying the channel state information, the transmission link being defined by a source address and a destination address of the signaling carrying the channel state information.
Optionally, the determining the priority information of the channel state information includes: and determining the priority information as the identification information of the reference logical channel, so that the receiving user equipment determines that the priority of the channel state information is the priority of the reference logical channel indicated by the identification information of the reference logical channel.
Optionally, the priority information includes a priority of the channel state information.
Optionally, the sending control information includes: and sending control information for triggering CSI reporting.
Optionally, the sending control information includes: transmitting physical layer signaling, the physical layer signaling comprising DCI or SCI; or sending high-layer signaling, wherein the high-layer signaling comprises RRC signaling.
In order to solve the above technical problem, an embodiment of the present invention further discloses a method for determining a priority of channel state information, where the method for determining a priority of channel state information includes: receiving control information, wherein the control information comprises priority information of channel state information; and determining the priority of the channel state information at least according to the control information.
Optionally, the priority information includes a ratio of a priority of the channel state information to a priority of the reference logical channel, and identification information of the reference logical channel, and the determining the priority of the channel state information at least according to the control information includes: determining the ratio and a reference logical channel according to the control information; and calculating the product of the priority of the reference logical channel and the ratio, and determining the priority of the channel state information according to the calculation result.
Optionally, the priority information includes a difference between a priority of the channel state information and a priority of a reference logical channel, and the reference logical channel refers to identification information of the reference logical channel, and the determining the priority of the channel state information at least according to the control information includes: determining the difference value and a reference logical channel according to the control information; and calculating the sum of the priority of the reference logical channel and the difference value, and determining the priority of the channel state information according to the calculation result.
Optionally, the determining the priority of the channel state information according to the calculation result includes: if the calculation result is between the lowest priority value and the highest priority value, directly determining that the calculation result is the priority of the channel state information; or if the calculation result is smaller than the lowest priority value, determining that the lowest priority is the priority of the channel state information; or, if the calculation result is greater than the highest priority value, determining that the highest priority is the priority of the channel state information.
Optionally, the priority information includes identification information of a reference logical channel, and the determining the priority of the channel state information according to at least the control information includes: and determining the priority of the reference logical channel indicated by the identification information of the reference logical channel in the control information as the priority of the channel state information.
Optionally, the priority information includes a priority of the channel state information, and the determining the priority of the channel state information at least according to the control information includes: and determining the priority indicated in the control information as the priority of the channel state information.
The embodiment of the invention also discloses a priority sending device of the channel state information, which comprises: the priority information determining module is used for determining the priority information of the channel state information; and the control information sending module is used for sending control information, and the control information comprises priority information of the channel state information.
The embodiment of the invention also discloses a device for determining the priority of the channel state information, which comprises the following components: the control information receiving module is used for receiving control information, wherein the control information comprises priority information of channel state information; and the priority determining module is used for determining the priority of the channel state information at least according to the control information.
The embodiment of the invention also discloses a storage medium, wherein a computer instruction is stored on the storage medium, and the computer instruction executes the steps of the method for determining the priority of the channel state information or the steps of the method for determining the priority when running.
The embodiment of the invention also discloses user equipment, which comprises a memory and a processor, wherein the memory is stored with computer instructions capable of running on the processor, and the processor executes the steps of the priority determination method of the channel state information or the steps of the priority determination method when running the computer instructions.
The embodiment of the invention also discloses a resource allocation method, which comprises the following steps: when the CSIMAC CE needs to be sent, determining a transmission link according to a source address and/or a target address of a signaling carrying the channel state information; and allocating transmission resources for the CSI MAC CE on the transmission link.
Optionally, the resource allocation method further includes: when the CSI MAC CE needing to be sent does not exist, determining a source address and/or a target address corresponding to the logic channel to be transmitted with the highest priority iteratively to be used for determining a transmission link, and allocating transmission resources for each logic channel to be transmitted according to the priority of each logic channel to be transmitted on the transmission link until all the transmission resource allocation is completed or all the logic channels to be transmitted are allocated.
Compared with the prior art, the technical scheme of the embodiment of the invention has the following beneficial effects:
in the technical scheme of the invention, the sending user equipment can determine the priority information of the channel state information; and sending control information, wherein the control information comprises priority information of the channel state information. In the technical scheme of the invention, because the CSI is usually related to the service data to be sent by the sending user equipment, and only the sending user equipment and/or the base station have the service data characteristic information to be sent, the priority of the channel state information can be indicated to the receiving user equipment by the sending user equipment or the base station, namely, the sending user equipment or the base station can indicate through the control information, so that the receiving user equipment can determine the priority of the channel state information through the control information, and the convenience of determining the priority of the channel state information is realized.
Further, determining a reference logical channel, and adding identification information of the reference logical channel to the priority information; determining a difference or ratio of the priority of the channel state information and the priority of the reference logical channel to add the priority information. According to the technical scheme, the priority of the channel state information is indirectly indicated by the reference logical channel and the difference value or the ratio of the priority of the channel state information to the priority of the reference logical channel, so that the priority of the channel state information can be shared with the priority of the logical channel.
Further, the priority information includes a priority of the channel state information. The technical scheme of the invention indicates the priority of the channel state information by directly carrying the priority of the channel state information in the control information, and can realize that the priority of the channel state information can be independent of the priority of the logic channel.
Drawings
Fig. 1 is a flowchart of a method for transmitting priority of csi according to an embodiment of the present invention;
fig. 2 is a flowchart of a method for determining a priority of channel state information according to an embodiment of the present invention;
FIG. 3 is a flowchart of one embodiment of step S202 shown in FIG. 2;
FIG. 4 is a flowchart of another embodiment of step S202 shown in FIG. 2;
fig. 5 is a schematic structural diagram of an apparatus for transmitting priority of channel state information according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of an apparatus for determining priority of channel state information according to an embodiment of the present invention.
Detailed Description
As described in the background, the current V2X LCP and sending procedures do not consider the issue of how to determine the priority of the channel state information after the introduction of CSI feedback.
In the technical scheme of the invention, because the CSI is usually related to the service data to be sent by the sending user equipment, and only the sending user equipment and/or the base station have the service data characteristic information to be sent, the priority of the channel state information can be indicated to the receiving user equipment by the sending user equipment or the base station, namely, the sending user equipment or the base station can indicate through the control information, so that the receiving user equipment can determine the priority of the channel state information through the control information, and the convenience of determining the priority of the channel state information is realized.
The technical scheme of the invention can be applied to 5G (5Generation) communication systems, 4G and 3G communication systems, and various future new communication systems such as 6G and 7G.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Fig. 1 is a flowchart of a method for sending priority of csi according to an embodiment of the present invention.
The priority sending method of the channel state information may be used for sending a user equipment side, where the sending user equipment refers to a user equipment that sends V2X data; i.e. the various steps shown in fig. 1 may be performed by the transmitting user equipment. The priority sending method of the channel state information can also be used on the base station side; i.e. the various steps described in fig. 1 may be performed by the base station.
The priority transmission method of the channel state information shown in fig. 1 may include the following steps:
step S101: determining priority information of the channel state information;
step S102: and sending control information, wherein the control information comprises priority information of the channel state information.
It should be noted that the sequence numbers of the steps in this embodiment do not represent a limitation on the execution sequence of the steps.
In a specific implementation of step S101, the sending ue may first determine priority Information of Channel State Information (CSI). The priority information can indicate a priority of the CSI. Specifically, the priority information of the CSI may directly indicate the priority of the CSI or indirectly indicate the priority of the CSI. For example, the priority information may include a priority of the CSI or a calculation manner of the priority of the CSI.
When the priority information of the CSI directly indicates the priority of the CSI, the receiving user equipment may determine the priority of the CSI directly according to the priority information of the CSI. When the priority information of the CSI indirectly indicates the priority of the CSI, the receiving user equipment needs to calculate the priority of the CSI according to the calculation method of the priority of the CSI in the priority information of the CSI.
Specifically, when the CSI is carried by a Control Element (CE) of a Media Access Control (MAC) layer, the priority of the CSI may be the priority of a CSI MAC CE. When the CSI is directly carried by the physical layer control signaling, the priority of the CSI is the priority of a physical resource block carrying the CSI. The CSI may also be carried by any other implementable control signaling, which is not limited in this embodiment of the present invention.
It should be noted that the priority of the CSI may be used to allocate transmission resources for the CSI in the LCP process. Specifically, a logical channel priority process may be performed according to the priority of the CSI and the priority of each logical channel to allocate transmission resources for each logical channel and the CSI MAC CE. The priority of the CSI may also be used to preempt transmission resources for CSI transmission in the sending process, and the sending process may be performed according to the priority of the CSI and the priority of the logical channel corresponding to the data to be transmitted. The priority of the CSI may also be used in any process that needs to consider the characteristics of the transmission data or the control signaling, which is not limited in the embodiment of the present invention.
Further, in the specific implementation of step S102, the sending ue may send the CSI priority information carried in the control information. Specifically, the control information may be a higher layer signaling or a physical layer signaling.
In a specific embodiment, step S102 shown in fig. 1 may include the following steps: and sending control information for triggering CSI reporting.
In this embodiment, the control information is control information for triggering CSI reporting. That is to say, the priority information of the CSI is carried by multiplexing the control information triggering the CSI report, so that the signaling overhead of the user equipment can be saved.
Specifically, the control information triggering CSI reporting may be physical layer signaling.
Specifically, the control information for triggering CSI reporting may trigger the reporting of CSI explicitly or implicitly. When the CSI report is triggered in a display manner, a special physical layer signaling may be designed for triggering the CSI report, or an indication field is added to the existing physical layer signaling, where the indication field indicates whether the CSI report is needed. When the CSI report is triggered in an implicit manner, whether to trigger the CSI report may be determined by whether the physical layer signaling schedules a reference signal for measuring the CSI. The embodiment of the present invention does not limit the specific CSI triggering method.
It should be noted that the control information triggering CSI reporting may also have other functions, for example, the control information triggering CSI reporting may also be used to schedule data transmission, and since the control information of data scheduling in the direct link may also carry the priority of actually sending data, at this time, the priority information of CSI carried in the control information triggering CSI reporting may multiplex the priority of sending data carried in the control information.
In the embodiment of the present invention, since the CSI is usually related to the service data to be transmitted by the transmitting user equipment, and only the transmitting user equipment and/or the base station has the service data characteristic information to be transmitted, the priority of the channel state information may be indicated to the receiving user equipment by the transmitting user equipment or the base station, that is, may be indicated by the transmitting user equipment or the base station through the control information, so that the receiving user equipment can determine the priority of the channel state information through the control information, thereby achieving convenience in determining the priority of the channel state information.
In one non-limiting embodiment of the present invention, step S101 shown in fig. 1 may include the following steps:
determining a reference logical channel, and adding the identification information of the reference logical channel into the priority information; determining a ratio of the priority of the channel state information to the priority of the reference logical channel to add the priority information.
In this embodiment, the priority information may indirectly indicate the priority of the CSI, that is, the priority information may include identification information of the reference logical channel and a ratio, so that the receiving user equipment may find the reference logical channel by referring to the identification information of the reference logical channel, and further calculate a product of the priority of the reference logical channel and the ratio to obtain the priority of the CSI.
Specifically, the identification information of the reference logical channel in the priority information may be represented by a single bit, for example, bit 0 or bit 1, where bit 0 represents that the reference logical channel is the highest priority logical channel, bit 1 represents that the reference logical channel is the lowest priority logical channel, or bit 1 represents that the reference logical channel is the highest priority logical channel, and bit 0 represents that the reference logical channel is the lowest priority logical channel.
Still alternatively, the identification information of the reference logical channel in the priority information may be a logical channel identification of the reference logical channel, and for example, when it is determined that logical channel 2 is the reference logical channel, logical channel identification 2 is indicated in the priority information.
In another non-limiting embodiment of the present invention, step S101 shown in fig. 1 may include the following steps:
determining a reference logical channel, and adding the identification information of the reference logical channel into the priority information; determining a difference between the priority of the channel state information and the priority of the reference logical channel to add the priority information.
Unlike the foregoing embodiments, in the present embodiment, the priority information includes not a ratio but a difference. Thus, the receiving user equipment can obtain the priority of the CSI by calculating the sum of the priority of the reference logical channel and the difference.
In this embodiment, the difference may be a positive integer, a negative integer smaller than 0, or 0.
Further, in determining the reference logical channel, the reference logical channel may be determined from a logical channel in the same transmission link as the signaling carrying the channel state information, and a transmission link is defined by a source address and/or a destination address of the signaling carrying the channel state information.
Specifically, the signaling carrying the channel state information may be a MAC CE. In this case, the reference logical channel may be determined from logical channels in the same transmission link as the CSI MAC CE.
In particular, the signaling carrying the channel state information may be physical layer signaling. In this case, the reference logical channel may be determined from logical channels in the same transmission link as the physical layer signaling carrying the CSI.
For example, for a direct link between user equipment 1 and user equipment 2, there are logical channel 1, logical channel 2, and logical channel 3, which have priorities of 2, 4, and 5, respectively, where a smaller value indicates a higher priority. In this case, it may be determined that the reference logical channel is the highest priority logical channel on the direct link, i.e. logical channel 1, and the priority is 2. If the ratio is 3 in the priority information at this time, it may be determined that the priority of the CSI is 2 × 3 — 6. If the difference value is 3 included in the priority information at this time, it may be determined that the priority of the CSI is 2+3 — 5.
For another example, for a direct link between the user equipment 1 and the user equipment 2, there are logical channel 1, logical channel 2, and logical channel 3, and the priorities are 2, 4, and 5, respectively, where a smaller value indicates a higher priority. In this case, it may be determined that the reference logical channel is the logical channel with logical channel identifier 2 on the direct link, that is, logical channel 2, and the priority is 4. If the ratio is 0.5 included in the priority information at this time, it may be determined that the priority of the CSI is 4 × 0.5 — 2. If the difference value is-2 included in the priority information at this time, it may be determined that the priority of the CSI is-2 + 4-2.
For another example, for a direct link between the user equipment 1 and the user equipment 2, there are logical channel 1, logical channel 2, and logical channel 3, and the priorities are 2, 4, and 5, respectively, where a smaller value indicates a higher priority. In this case, it may be determined that the reference logical channel is the highest priority logical channel on the direct link, i.e. logical channel 1, and the priority is 2. If the ratio is 1 included in the priority information at this time, it may be determined that the priority of the CSI is 2. If the difference value is 0 included in the priority information at this time, it may be determined that the priority of the CSI is 2. At this time, the priority of the CSI on the direct link between the user equipment 1 and the user equipment 2 is actually the priority of the highest logical channel on the direct link between the user equipment 1 and the user equipment 2.
For another example, for a direct link between the user equipment 1 and the user equipment 2, there are logical channel 1, logical channel 2, and logical channel 3, and the priorities are 2, 4, and 5, respectively, where a smaller value indicates a higher priority. In this case, it may be determined that the reference logical channel is the logical channel identified as 2 on the unicast link, that is, the logical channel 2, and the priority thereof is 4. If the ratio is 1 included in the priority information at this time, it may be determined that the priority of the CSI is 4. If the difference value is 0 included in the priority information at this time, it may be determined that the priority of the CSI is 4. At this time, the priority of the CSI on the unicast link between the user equipment 1 and the user equipment 2 is actually the priority of the logical channel 2 on the direct link between the user equipment 1 and the user equipment 2.
Optionally, when determining the reference logical channel, the reference logical channel may also be determined from logical channels having data.
For example, for user equipment 1, and one or more user equipments, there are logical channel 1, logical channel 2, and logical channel 3 with priorities of 2, 4, and 5, respectively, wherein a smaller value indicates a higher priority, and logical channel 2 and logical channel 3 currently have data to transmit. In this case, it may be determined that the reference logical channel is a logical channel with the highest priority among logical channels to which data is to be transmitted, that is, a logical channel 2, and the priority thereof is 4. If the ratio is 0.5 included in the priority information at this time, it may be determined that the priority of the CSI is 4 × 0.5 — 2. If the difference value is-2 included in the priority information at this time, it may be determined that the priority of the CSI is-2 + 4-2.
In one non-limiting embodiment of the present invention, step S101 shown in fig. 1 may include the following steps: and determining the priority information as the identification information of the reference logical channel, so that the receiving user equipment determines that the priority of the channel state information is the priority of the reference logical channel indicated by the identification information of the reference logical channel.
In this embodiment, the priority information may indirectly indicate the priority of the CSI. Specifically, the priority information includes identification information of a reference logical channel, and the identification information of the reference logical channel can indicate the reference logical channel, and the reference logical channel has priority. Thus, the receiving user equipment may determine the priority of the CSI as the priority of the reference logical channel indicated by the identification of the reference logical channel.
Specifically, the identification information of the reference logical channel in the priority information may be represented by a single bit, for example, bit 0 or bit 1, where bit 0 represents that the logical channel with the highest priority is the reference logical channel, bit 1 represents that the logical channel with the lowest priority is the reference logical channel, or bit 1 represents that the logical channel with the highest priority is the reference logical channel, and bit 0 represents that the logical channel with the lowest priority is the reference logical channel.
Still alternatively, the identification information of the reference logical channel in the priority information may be a logical channel identification, for example, may indicate that the reference channel is a logical channel with a logical channel identification of 2.
Optionally, when determining the reference logical channel, the reference logical channel may be determined from a logical channel in the same transmission link as the signaling carrying the channel state information, and a transmission link is defined by a source address and/or a destination address of the signaling carrying the channel state information.
Alternatively, when determining the reference logical channel, the reference logical channel may be determined from logical channels having data.
For more detailed implementation of the present embodiment, reference may be made to the foregoing embodiments, which are not described herein again.
In one non-limiting embodiment of the present invention, the priority information includes a priority of the channel state information.
Unlike the previous embodiments, the priority information in the embodiments of the present invention may directly indicate the priority of the CSI, that is, the priority information includes the priority of the CSI.
Further, the priority of the channel state information included in the priority information may be a specific priority value, for example, if the priority carries priority 5, it may be determined that the priority of the CSI is 5, or may indicate that the priority of the CSI is higher than the priority of the logical channel carrying data, or is lower than the priority of the logical channel carrying data.
For example, when the priority of the channel state information included in the channel state information indicates that the priority of CSI is higher than the priority of a logical channel carrying data, in the LCP performing process, when CSI needs to be sent, a transmission link is determined according to a source address and/or a destination address of signaling carrying the channel state information; and allocating transmission resources for the CSI MACCE on the transmission link, namely preferentially allocating the transmission resources for the CSI. And when the CSI which needs to be sent does not exist, determining a source address and/or a target address corresponding to the logical channel to be transmitted of the highest priority data which is allowed to be sent, so as to be used for determining a transmission link.
For another example, when the priority of the channel state information included in the channel state information indicates that the priority of the CSI is lower than the priority of the logical channel carrying the data, when the LCP process is performed, and when the data to be transmitted is required and allowed to be transmitted, a source address and/or a target address corresponding to the logical channel to be transmitted with the highest priority allowing the data to be transmitted is determined, so as to be used for determining a transmission link, and when the data to be transmitted is not required or not required to be transmitted and the CSI is required to be transmitted, the transmission link is determined according to the source address and/or the target address of the signaling carrying the channel state information; and allocating transmission resources for the CSIMAC CEs on the transmission link.
In one non-limiting embodiment of the present invention, step S102 shown in fig. 1 may include the following steps: transmitting a physical layer signaling, wherein the physical layer signaling includes Downlink Control Information (DCI) or direct link Control Information (SCI); or transmitting a high layer signaling, wherein the high layer signaling comprises Radio Resource Control (RRC) signaling. It should be noted that, in the method shown in fig. 1 and all the embodiments of the related invention, all or part of the content in the priority information of the channel state information in the control information may be determined by pre-configuration, so that it is not required to be carried in the control information.
For example, when the reference logical channel is predefined as the highest priority logical channel and the CSI priority is predefined as the product of the priority of the reference logical channel and the ratio of the priority of the channel state information to the priority of the reference logical channel, the priority information of the channel state information may include only the ratio of the priority of the channel state information to the priority of the reference logical channel, so that the priority of the CSI is determined according to the priority of the highest priority logical channel and the ratio of the priority of the channel state information to the priority of the reference logical channel.
For another example, when the reference logical channel is predefined to be the lowest priority logical channel in the logical channels of the same transmission link as the signaling carrying the channel state information, and the priority of the CSI is predefined to be the priority of the reference logical channel, the priority information of the channel state information does not need to be carried in the control information, and the priority of the CSI can still be determined to be the priority of the lowest priority logical channel in the logical channels of the same transmission link as the signaling carrying the channel state information.
For another example, when the priority of the CSI is lower than the priority of the logical channel carrying the data, it is not necessary to carry the priority information of the channel state information in the control information, and it may still be determined that the priority of the CSI is lower than the priority of the logical channel carrying the data.
Referring to fig. 2, the method for determining the priority of the channel state information may be used on the receiving user equipment side, where the receiving user equipment refers to a user equipment that receives V2X data. Specifically, the receiving user equipment may perform each step of the method shown in fig. 2:
step S201: receiving control information, wherein the control information comprises priority information of channel state information;
step S202: and determining the priority of the channel state information at least according to the control information.
In this embodiment, since the control information carries the priority information of the channel state information, the receiving user equipment may determine the priority of the channel state information at least according to the priority information in the control information.
Specifically, when the priority information of the CSI directly indicates the priority of the CSI, the receiving user equipment may determine the priority of the CSI directly according to the priority information of the CSI. When the priority information of the CSI indirectly indicates the priority of the CSI, the receiving user equipment needs to calculate the priority of the CSI according to the calculation method of the priority of the CSI in the priority information of the CSI.
For more detailed implementation of the present embodiment, reference may be made to the foregoing embodiments, which are not described herein again.
In one non-limiting embodiment of the present invention, the priority information includes a ratio of a priority of the channel state information to a priority of the reference logical channel, and identification information of the reference logical channel. Referring to fig. 3, step S202 shown in fig. 2 may specifically include the following steps:
step S301: determining the ratio and a reference logical channel according to the control information;
step S302: and calculating the product of the priority of the reference logical channel and the ratio, and determining the priority of the channel state information according to the calculation result.
In this embodiment, the receiving user equipment may calculate a product of the priority of the reference logical channel and the ratio, and may directly use the calculation result as the priority of the CSI.
In another non-limiting embodiment of the present invention, the priority information includes a difference between a priority of the channel state information and a priority of the reference logical channel, and identification information of the reference logical channel. Referring to fig. 4, step S202 shown in fig. 2 may specifically include the following steps:
step S401: determining the difference value and a reference logical channel according to the control information;
step S402: and calculating the sum of the priority of the reference logical channel and the difference value, and determining the priority of the channel state information according to the calculation result.
In this embodiment, the receiving user equipment may calculate a product of the priority of the reference logical channel and the difference, and may directly use the calculation result as the priority of the CSI.
Further, step S302 shown in fig. 3 or step S402 shown in fig. 4 may specifically include the following steps:
if the calculation result is between the lowest priority value and the lowest priority value, directly determining that the calculation result is the priority of the channel state information; or if the calculation result is smaller than the lowest priority value, determining that the lowest priority is the priority of the channel state information; or, if the calculation result is greater than the highest priority value, determining that the highest priority is the priority of the channel state information.
In one embodiment, the priority has a range of values, i.e., the lowest priority value and the highest priority value, e.g., 0 to 7. The finally determined priority of the CSI should also be within the value range to ensure validity of the CSI priority.
For example, the logical channel priority has a value ranging from 0 to 7. For the unicast link between user equipment 1 and user equipment 2, there are logical channel 1, logical channel 2 and logical channel 3 with priorities of 2, 4 and 5, respectively, where a smaller value indicates a higher priority. In this case, it may be determined that the reference logical channel is the logical channel with the highest priority on the unicast link, i.e., logical channel 1, and the priority thereof is 2. If the ratio is 4 in the priority information at this time, it may be determined that the priority of the CSI is 2 × 4 — 8. Since 8 is significantly larger than the highest priority value of 7 for the logical channel, it can be determined that the priority of CSI is 7.
For another example, for a unicast link between user equipment 1 and user equipment 2, there are logical channel 1, logical channel 2, and logical channel 3, with priorities of 4, 5, and 6, respectively. In this case, it may be determined that the reference logical channel is the logical channel with the highest priority on the unicast link, i.e., logical channel 1, and the priority thereof is 4. If the difference value is-5 is included in the priority information at this time, it may be determined that the priority of the CSI is 4+ (-5) — 1. Since-1 significantly exceeds the lowest priority value of 0 for the logical channel, the priority of CSI may be determined to be 0.
In a non-limiting embodiment of the present invention, the priority information includes identification information of a reference logical channel, and step S202 shown in fig. 2 may include the following steps: and determining the priority of the reference logical channel indicated by the identification information of the reference logical channel in the control information as the priority of the channel state information.
Specifically, the identification information of the reference logical channel may indicate a logical channel with the highest priority or a logical channel with the lowest priority, in which case, the identification information of the reference logical channel may be represented by a single bit, for example, bit 0 or bit 1, bit 0 representing the logical channel with the highest priority, bit 1 representing the logical channel with the lowest priority, or bit 1 representing the logical channel with the highest priority, and bit 0 representing the logical channel with the lowest priority.
The identity of the reference logical channel may also indicate the specific logical channel. For example, the priority information indicates that logical channel 2 is a reference logical channel, and the priority of logical channel 2 is used as the priority of CSI, then the identification of the reference logical channel may be ID ═ 2.
In a non-limiting embodiment of the present invention, the priority information includes a priority of the channel state information, and step S202 shown in fig. 2 may include the following steps: and determining the priority indicated in the control information as the priority of the channel state information.
In this embodiment, since the priority information directly indicates the priority of the CSI, the receiving user equipment may directly determine that the priority in the priority information is the priority of the CSI.
Specifically, the channel state information included in the priority information may be a specific priority, for example, if the priority is 5, the priority of the CSI may be determined to be 5, or the priority of the CSI may be indicated to be higher than a logical channel carrying data, or lower than a logical channel carrying data.
It should be noted that, in the method shown in fig. 2 and all the embodiments of the related invention, all or part of the content in the priority information of the channel state information in the control information may be determined by pre-configuration, so that it is not required to be carried in the control information.
The detailed description of the embodiments can refer to the embodiment described in fig. 1, and will not be repeated herein. Referring to fig. 5, an embodiment of the present invention further discloses a priority sending device 50 for channel state information, where the priority sending device 50 may include:
a priority information determining module 501, configured to determine priority information of channel state information;
a control information sending module 502, configured to send control information, where the control information includes priority information of channel state information.
In the embodiment of the present invention, since the CSI is usually related to the service data to be transmitted by the transmitting user equipment, and only the transmitting user equipment and/or the base station has the service data characteristic information to be transmitted, the priority of the channel state information may be indicated to the receiving user equipment by the transmitting user equipment or the base station, that is, may be indicated by the transmitting user equipment or the base station through the control information, so that the receiving user equipment can determine the priority of the channel state information through the control information, thereby achieving convenience in determining the priority of the channel state information.
For more details of the operation principle and the operation mode of the priority level sending apparatus 50, reference may be made to the relevant descriptions in fig. 1 to fig. 4, which are not described herein again.
Referring to fig. 5, an embodiment of the present invention further discloses a priority determining apparatus 60 for channel state information, where the priority determining apparatus 60 may include:
a control information receiving module 601, configured to receive control information, where the control information includes priority information of channel state information;
a priority determining module 602, configured to determine a priority of the channel state information according to at least the control information.
For more details of the operation principle and the operation mode of the priority determination apparatus 60, reference may be made to the relevant descriptions in fig. 1 to fig. 4, which are not described herein again.
The embodiment of the invention also discloses a storage medium which is a computer readable storage medium and stores computer instructions, and the computer instructions can execute the steps of the method shown in fig. 1 to fig. 4 when running. The storage medium may include ROM, RAM, magnetic or optical disks, etc. The storage medium may further include a non-volatile memory (non-volatile) or a non-transitory memory (non-transient), and the like.
The embodiment of the invention also discloses user equipment which can comprise a memory and a processor, wherein the memory is stored with computer instructions capable of running on the processor. The processor, when executing the computer instructions, may perform the steps of the methods shown in fig. 1-4. The user equipment includes, but is not limited to, terminal equipment such as a mobile phone, a computer, a tablet computer, and a vehicle-mounted smart device.
The embodiment of the invention also discloses a base station which can comprise a memory and a processor, wherein the memory is stored with computer instructions capable of running on the processor. The processor, when executing the computer instructions, may perform the steps of the method of fig. 1.
The ue in the embodiments of the present invention may be any implementable access terminal, subscriber unit, subscriber station, mobile station (mobile station, MS), remote station, remote terminal, mobile device, user terminal, terminal device (terminal equipment), wireless communication device, user agent, or user equipment. The user equipment may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with a Wireless communication function, a computing device or other processing devices connected to a Wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G Network or a terminal device in a future evolved Public Land Mobile Network (PLMN), and the like, which is not limited in this embodiment.
A Base Station (BS) in the embodiment of the present application, which may also be referred to as a base station device, is a device deployed in a Radio Access Network (RAN) to provide a wireless communication function. For example, the device providing the base station function in the 2G network includes a Base Transceiver Station (BTS), the device providing the base station function in the 3G network includes a node B (nodeb), the device providing the base station function in the 4G network includes an evolved node B (eNB), the device providing the base station function in the Wireless Local Area Network (WLAN) is an Access Point (AP), the device providing the base station function in the 5G New Radio (NR) is a gbb (eNB) providing the base station function, and the node B (ng-eNB) continues to evolve, where the gbb and the terminal communicate with each other by using an NR technique, the ng-eNB and the terminal communicate with each other by using an E-utra (evolved Universal Radio access) technique, and both the gbb and the ng-eNB may be connected to the 5G core network. The base station in the embodiment of the present application also includes a device and the like that provide a function of the base station in a future new communication system. It should be understood that the term "and/or" herein is merely one type of association relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" in this document indicates that the former and latter related objects are in an "or" relationship.
The "plurality" appearing in the embodiments of the present application means two or more.
It should be understood that, in the embodiment of the present application, the processor may be a Central Processing Unit (CPU), and the processor may also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
It will also be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The nonvolatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash memory. Volatile memory can be Random Access Memory (RAM) which acts as external cache memory. By way of example and not limitation, many forms of Random Access Memory (RAM) are available, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), Enhanced SDRAM (ESDRAM), synchlink DRAM (SLDRAM), and direct bus RAM (DR RAM).
The embodiments described above in this application may be implemented in whole or in part by software, hardware, firmware, or any other combination. When implemented in software, the above-described embodiments may be implemented in whole or in part in the form of a computer program product. The computer program product comprises one or more computer instructions or computer programs. The procedures or functions according to the embodiments of the present application are wholly or partially generated when the computer instructions or the computer program are loaded or executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire or wirelessly. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains one or more collections of available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium. The semiconductor medium may be a solid state disk.
It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.
In the several embodiments provided in the present application, it should be understood that the disclosed method, apparatus and system may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative; for example, the division of the unit is only a logic function division, and there may be another division manner in actual implementation; for example, various elements or components may be combined or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be physically included alone, or two or more units may be integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute some steps of the methods according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (19)
1. A priority transmission method of channel state information is characterized by comprising the following steps:
determining priority information of the channel state information;
and sending control information, wherein the control information comprises priority information of the channel state information.
2. The priority transmission method according to claim 1, wherein the determining the priority information of the channel state information comprises:
determining a reference logical channel, and adding the identification information of the reference logical channel into the priority information;
determining a ratio of the priority of the channel state information to the priority of the reference logical channel to add the priority information.
3. The priority transmission method according to claim 1, wherein the determining the priority information of the channel state information comprises:
determining a reference logical channel, and adding the identification information of the reference logical channel into the priority information;
determining a difference between the priority of the channel state information and the priority of the reference logical channel to add the priority information.
4. The priority transmission method according to claim 2 or 3, wherein the determining that the reference logical channel is the highest priority logical channel or the lowest priority logical channel comprises:
determining the reference logical channel from logical channels in the same transmission link as the signaling carrying the channel state information, the transmission link being defined by a source address and/or a destination address of the signaling carrying the channel state information.
5. The priority transmission method according to claim 1, wherein the determining the priority information of the channel state information comprises:
and determining the priority information as the identification information of the reference logical channel, so that the receiving user equipment determines that the priority of the channel state information is the priority of the reference logical channel indicated by the identification information of the reference logical channel.
6. The priority transmission method according to claim 1, wherein the priority information comprises a priority of channel state information or a size relationship between the priority of the channel state information and a priority of a logical channel carrying data.
7. The priority transmission method according to claim 1, wherein the transmission control information includes:
and sending control information for triggering CSI reporting.
8. The priority transmission method according to claim 1, wherein the transmission control information includes:
transmitting physical layer signaling, the physical layer signaling comprising DCI or SCI;
or sending high-layer signaling, wherein the high-layer signaling comprises RRC signaling.
9. A method for prioritizing channel state information, comprising:
receiving control information, wherein the control information comprises priority information of channel state information;
and determining the priority of the channel state information at least according to the control information.
10. The priority determination method according to claim 9, wherein the priority information includes a ratio of a priority of channel state information to a priority of a reference logical channel, and identification information of the reference logical channel, and the determining the priority of the channel state information at least according to the control information includes:
determining the ratio and a reference logical channel according to the control information;
and calculating the product of the priority of the reference logical channel and the ratio, and determining the priority of the channel state information according to the calculation result.
11. The priority determination method according to claim 9, wherein the priority information includes a difference between a priority of the channel state information and a priority of a reference logical channel, and identification information of the reference logical channel, and the determining the priority of the channel state information at least according to the control information includes:
determining the difference value and a reference logical channel according to the control information;
and calculating the sum of the priority of the reference logical channel and the difference value, and determining the priority of the channel state information according to the calculation result.
12. The method according to claim 10 or 11, wherein the determining the priority of the channel state information according to the calculation result comprises:
if the calculation result is between the lowest priority value and the highest priority value, directly determining that the calculation result is the priority of the channel state information;
or if the calculation result is smaller than the lowest priority value, determining that the lowest priority is the priority of the channel state information;
or, if the calculation result is greater than the highest priority value, determining that the highest priority is the priority of the channel state information.
13. The priority determination method of claim 9, wherein the priority information includes identification information of a reference logical channel, and wherein the determining the priority of the channel state information at least according to the control information comprises:
and determining the priority of the reference logical channel indicated by the identification information of the reference logical channel in the control information as the priority of the channel state information.
14. The method of claim 9, wherein the priority information comprises a priority of channel state information, and wherein the determining the priority of channel state information based at least on the control information comprises:
and determining the priority indicated in the control information as the priority of the channel state information.
15. An apparatus for transmitting priority of channel state information, comprising:
the priority information determining module is used for determining the priority information of the channel state information;
and the control information sending module is used for sending control information, and the control information comprises priority information of the channel state information.
16. An apparatus for prioritizing channel state information, comprising:
the control information receiving module is used for receiving control information, wherein the control information comprises priority information of channel state information;
and the priority determining module is used for determining the priority of the channel state information at least according to the control information.
17. A storage medium having stored thereon computer instructions, wherein the computer instructions are operable to perform the steps of the method for priority transmission of channel state information according to any of claims 1 to 8 or the steps of the method for priority determination according to any of claims 9 to 14.
18. A user equipment comprising a memory and a processor, the memory having stored thereon computer instructions executable on the processor, wherein the processor when executing the computer instructions performs the steps of the method for priority transmission of channel state information according to any of claims 1 to 8 or the steps of the method for priority determination according to any of claims 9 to 14.
19. A base station comprising a memory and a processor, the memory having stored thereon computer instructions executable on the processor, wherein the processor when executing the computer instructions performs the steps of the priority transmission method of channel state information according to any one of claims 1 to 8.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910918889.4A CN110690944B (en) | 2019-09-26 | 2019-09-26 | Method and device for transmitting and determining priority of channel state information, storage medium and user equipment |
| PCT/CN2020/115502 WO2021057564A1 (en) | 2019-09-26 | 2020-09-16 | Method and apparatus for transmitting priority of channel state information, method and apparatus for determining priority of channel state information, storage medium, and user equipment |
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| CN201910918889.4A CN110690944B (en) | 2019-09-26 | 2019-09-26 | Method and device for transmitting and determining priority of channel state information, storage medium and user equipment |
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| CN113329376A (en) * | 2020-02-28 | 2021-08-31 | 大唐移动通信设备有限公司 | Information processing method, device, equipment and computer readable storage medium |
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| WO2021057564A1 (en) | 2021-04-01 |
| CN110690944B (en) | 2022-04-26 |
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