CN112968757A - PDCCH resource allocation method, demodulation method and related device - Google Patents
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- H04L5/00—Arrangements affording multiple use of the transmission path
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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
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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Abstract
The application provides a PDCCH resource allocation method, a PDCCH resource demodulation method and a related device, wherein the allocation method comprises the following steps: sending configuration information of a control resource set for bearing PDCCH information to a terminal; the configuration information includes: controlling the number of OFDM symbols occupied by a resource set in a time domain and the number of frequency domain RBs of the resource set; the number of OFDM symbols is not less than 4 and not more than 13, and/or the number of frequency domain RBs is one of the values of multiples of 6 in the preset value range; filling PDCCH information on at least part of resources of a control resource set under the condition that the uplink and downlink services of the terminal are detected to obtain a target control resource set; under the condition that the frequency domain RB quantity of the target control resource set does not accord with the 235 principle, adding a target quantity redundant RB at the RB position with the maximum number of the target control resource set; and carrying out preset sending processing on the filled control resource set and sending the control resource set to the terminal. The method and the device can reduce the scheduling time delay of concurrent services of a large number of users.
Description
Technical Field
The present application relates to the field of satellite communications, and in particular, to a PDCCH resource allocation method, a demodulation method, and a related apparatus.
Background
At present, the coverage area of a cell of a ground 4G/5G system is usually within 10km, and the coverage area of the cell in a satellite communication system is wide and can reach 1000km level, which is 100 times that of the ground system. The single-cell planning of the satellite at one stage supports 1000 users, and the number of single-cell concurrent users can be expanded after the satellite is used for subsequent business. Due to the expansion of the number of the concurrent users in a single cell, the PDCCH resource required by the communication between the terminal and the base station in the satellite communication system can not meet the requirement.
Because the PDCCH resource cannot meet the requirement, the scheduling delay of a large number of concurrent services for users is long.
Disclosure of Invention
The application provides a PDCCH resource allocation method, a PDCCH resource demodulation method and a related device, and aims to solve the problem that scheduling delay of concurrent services of a large number of users is long in a satellite communication system.
In order to achieve the above object, the present application provides the following technical solutions:
the application provides a PDCCH resource allocation method, which is applied to a base station, and comprises the following steps:
sending configuration information of a control resource set for bearing PDCCH information to a terminal; the configuration information includes: the number of OFDM symbols occupied by the control resource set in a time domain and the number of frequency domain RBs of the control resource set; the number of the OFDM symbols is not less than 4 and not more than 13, and/or the number of the frequency domain RBs is one of the values of multiples of 6 in a preset value range;
under the condition that the uplink and downlink services of the terminal are detected, filling PDCCH information on at least part of resources of the control resource set to obtain a target control resource set; (ii) a
Under the condition that the frequency domain RB quantity of the target control resource set does not meet the 235 principle, adding a target quantity redundant RB at the RB position with the maximum number of the target control resource set to obtain a filled control resource set of which the frequency domain RB quantity meets the 235 principle;
and carrying out preset sending processing on the filled control resource set and sending the control resource set to a terminal.
Optionally, the method further includes:
and under the condition that the frequency domain RB quantity of the target control resource set conforms to a 235 principle, performing the sending processing on the target control resource set and sending the target control resource set to a terminal.
The application also provides a demodulation method of the PDCCH resource, which is applied to a terminal, and the method comprises the following steps:
receiving configuration information of a control resource set for carrying PDCCH information;
under the condition of receiving a PDCCH (physical Downlink control channel) information demodulation instruction, judging whether the frequency domain RB number of a control resource set in the configuration information conforms to a 235 principle;
under the condition that the frequency domain RB of the control resource set in the configuration information does not accord with the 235 principle, adding a target number of RBs at the position of the RB with the largest number in the control resource set, and receiving the control resource set of which the frequency domain RB number meets the 235 principle;
determining resources carrying PDCCH information from the received control resource set;
and acquiring the PDCCH information from resources carrying the PDCCH information.
Optionally, the determining manner of the target number value includes:
determining a value which satisfies the 235 principle at minimum in the number values of the frequency domain RBs which are larger than the control resource set as a target value;
and taking the difference between the target value and the frequency domain RB quantity as the target quantity.
Optionally, in a case that the PDCCH information demodulation instruction is received, after determining whether the number of frequency domain RBs of the control resource set in the configuration information conforms to a 235 rule, and before determining a resource carrying PDCCH information from the received control resource set, the method further includes:
and receiving the control resource set under the condition that the frequency domain RB number of the control resource set in the configuration information conforms to the 235 principle.
The present application further provides a storage medium including a stored program, wherein the program executes any one of the above methods for allocating PDCCH resources.
The application also provides a base station, which comprises at least one processor, a transmitter connected with the processor, a memory and a bus, wherein the processor, the memory and the transmitter respectively complete mutual communication through the bus;
the transmitter is configured to transmit configuration information of a control resource set for carrying PDCCH information to a terminal; the configuration information includes: the number of OFDM symbols occupied by the control resource set in a time domain and the number of frequency domain RBs of the control resource set; the number of the OFDM symbols is not less than 4 and not more than 13, and/or the number of the frequency domain RBs is one of the values of multiples of 6 in a preset value range;
the processor is configured to, when an uplink and a downlink service of a terminal are detected, fill PDCCH information in at least part of resources of the control resource set to obtain a target control resource set; under the condition that the frequency domain RB quantity of the target control resource set does not meet the 235 principle, adding a target quantity redundant RB at the RB position with the maximum number of the target control resource set to obtain a filled control resource set of which the frequency domain RB quantity meets the 235 principle;
and the transmitter is also used for carrying out preset transmission processing on the filled control resource set obtained by the processor and transmitting the control resource set to a terminal.
The present application also provides a storage medium including a stored program, wherein the program executes any one of the above-described PDCCH resource demodulation methods.
The application also provides a terminal, which comprises at least one processor, a receiver, a memory and a bus, wherein the receiver, the memory and the bus are connected with the processor, and the processor is respectively communicated with the memory and the receiver through the bus;
the receiver is configured to receive configuration information of a control resource set for carrying PDCCH information;
the processor is configured to determine whether the frequency domain RB number of the control resource set in the configuration information conforms to a 235 rule under the condition that the receiver receives the PDCCH demodulation information instruction; under the condition that the frequency domain RB of the control resource set in the configuration information does not accord with the 235 principle, the receiver is controlled to receive the control resource set of which the frequency domain RB quantity meets the 235 principle by adding a target quantity RB at the RB position with the largest number in the control resource set; determining resources carrying PDCCH information from the received control resource set; and acquiring the PDCCH information from resources carrying the PDCCH information.
Optionally, the processor is further configured to, when receiving the instruction to demodulate the PDCCH information, determine whether the number of frequency domain RBs of the control resource set in the configuration information conforms to a 235 rule, and before determining a resource carrying the PDCCH information from the received control resource set, control the receiver to receive the control resource set when the number of frequency domain RBs of the control resource set in the configuration information conforms to the 235 rule.
The PDCCH resource allocation method, the PDCCH resource demodulation method and the related device send configuration information of a control resource set for bearing PDCCH information to a terminal; wherein the configuration information includes: the number of OFDM symbols occupied by the control resource set in the time domain and the number of frequency domain RBs of the control resource set. And the number of OFDM symbols is not less than 4 and not more than 13, and/or the number of frequency domain RBs is one of the values of multiples of 6 in the preset value range. Since the number of OFDM symbols is increased compared to the maximum value of the prior art, the amount of PDCCH information that can be carried in the time domain is increased. And/or, because the frequency domain RB number of the control resource set is one of the values of the multiple of 6 in the preset value range, the maximum possible value of the frequency domain RB number of the control resource set configured in the present application is increased, compared with the frequency domain RB of the control resource set configured in the prior art, which satisfies the multiple of 6 and also needs to satisfy the principle of 235, so that the amount of PDCCH information that can be carried in the frequency domain is increased, and thus, the scheduling delay of a large number of concurrent services for a user can be reduced.
In addition, in the present application, when the frequency domain RB number allocated to the control resource set by the allocation information does not satisfy the 235 rule, the target number of redundant RBs is added at the RB position with the largest number of control resource sets, so as to obtain the post-padding control resource set whose frequency domain RB number satisfies the 235 rule, and therefore, the frequency domain RB number of the post-padding control resource set that carries the PDCCH information and is transmitted to the terminal satisfies the 235 rule.
In summary, the improvement of the present application in the time domain and/or the frequency domain increases the amount of the PDCCH information that can be carried, thereby reducing the scheduling delay of a large number of concurrent services for users.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flowchart of a method for allocating PDCCH resources disclosed in an embodiment of the present application;
FIG. 2(a) is a schematic diagram of the time-frequency distribution of an RB in the prior art;
fig. 2(b) is a schematic time-frequency distribution diagram of an RB disclosed in the embodiment of the present application;
fig. 3 is a schematic diagram illustrating a result of adding a target number of redundant RBs by a base station according to an embodiment of the present application;
fig. 4 is a flowchart of a method for demodulating PDCCH resources disclosed in the embodiments of the present application;
fig. 5 is a schematic structural diagram of a base station disclosed in the embodiment of the present application;
fig. 6 is a schematic structural diagram of a terminal disclosed in an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The inventors of the present application have found in their research that in order to increase the reliability of satellite telecommunication, a satellite communication system increases PDCCH aggregation level, 4G available aggregation level 1/2/4/8, 5G available aggregation level 1/2/4/8/16, and satellite available aggregation level 4/8/16/32. In addition, in order to reduce the peak-to-average power ratio of downlink, the frequency domain RB number of the control resource set allocated to the terminal by the PDCCH of the satellite communication system is not only a multiple of 6, but also needs to accord with the 235 principle, thereby limiting the frequency domain available RB number of the PDCCH.
Therefore, the present application improves from the time domain and/or the frequency domain, so as to increase the amount of PDCCH information that can be carried by the control resource set. Specifically, the number of OFDM symbols of the control resource set configured in the embodiment of the present application in the time domain is not less than 4 and not greater than 13, so that, compared to the number of OFDM symbols in the prior art, the maximum number of OFDM symbols of the control resource set configured in the present application in the time domain is increased, and thus, the amount of the PDCCH information that can be carried is increased in the time domain. And/or, for the same bandwidth, the maximum possible value of the frequency domain RB number of the configured control resource set is increased, so that the configured control resource set increases the amount of the PDCCH information that can be carried in the frequency domain.
Fig. 1 is a method for allocating PDCCH resources according to an embodiment of the present application, where an execution subject is a base station, and the method may include the following steps:
s101, the base station sends configuration information of a control resource set for carrying PDCCH information to the terminal.
The configuration information includes: the number of OFDM symbols occupied by the control resource set in the time domain and the number of frequency domain RBs of the control resource set. And the number of OFDM symbols is not less than 4 and not more than 13, and/or the number of frequency domain RBs is one of the values of multiples of 6 in the preset value range.
Taking the maximum symbol number of the enlarged PDCCH as 4, the frequency domain RB number corresponding to the downlink bandwidth as 264 as an example, the maximum available RB number of the downlink PDCCH is 240. When the number of OFDM symbols is set to 3, the available CCEs is 240/6 × 2 — 120, and when the number of OFDM symbols is set to 4, the available CCEs is 160, and thus it is seen that the number of CCEs increases by 34%.
In order to visually demonstrate the variation of the number of OFDM symbols in the time domain, the present embodiment provides the schematic diagrams shown in fig. 2(a) and fig. 2 (b). Fig. 2(a) is a schematic diagram of time-frequency distribution of an RB in the prior art, fig. 2(b) is a schematic diagram of time-frequency distribution of an RB in the present application, and the horizontal axis of fig. 2(a) and fig. 2(b) represents a time domain and the vertical axis represents a frequency domain. As can be seen from fig. 2(a), in the time domain, the number of OFDM symbols marked with "PDCCH" is three. As can be seen from fig. 2(b), in the time domain, the number of OFDM symbols marked with "PDCCH" is four.
In this step, the upper limit value of the preset value range is the maximum RB number in accordance with the 235 rule in the current frequency band. For example, taking downlink frequency band 264RB of the satellite communication system as an example, if the upper limit value of the preset value range is 256, the preset value range is 1 to 256. In this embodiment, the frequency domain RB of the control resource set only needs to satisfy one of the integer multiples of 6 in the preset value range.
Taking the downlink frequency band 264RB of the satellite communication system as an example, in this embodiment, the desirable value of the frequency domain RB number of the control resource set is shown in table 1 below. For the prior art, the desirable value of the number of frequency domain RBs of the control resource set is both 235 and a multiple of 6, and therefore, the desirable value of the number of frequency domain RBs of the control resource set in the prior art is the gray labeled part in table 1. Where a positive integer a follows the 235 rule, i.e. there are non-negative integers x, y, z, such that 2x 3y 5z is a.
TABLE 1
As can be seen from table 1, a maximum of 252 RBs can be allocated to the PDCCH in this embodiment, and a maximum of 240 RBs can be allocated to the PDCCH in the prior art, so that the PDCCH band utilization and the system PDCCH maximum capacity can be improved in this embodiment compared with the prior art.
S102, when detecting the uplink and downlink services of the terminal, the base station fills PDCCH information on at least part of the configured control resource set to obtain a target control resource set.
S103, judging whether the frequency domain RB number of the target control resource set meets 235 principle, if so, executing S104, and if not, executing S105.
In this embodiment, since the frequency domain RB number of the control resource set is one of the values that are multiples of 6 in the preset value range, that is, there are some values that do not satisfy the 235 rule in the desirable value of the frequency domain RB number of the control resource set. For example, the satellite communication system downlink frequency band 264RB, 252 does not satisfy the 235 criteria if the number of frequency domain RBs of the control resource set is 252.
In this embodiment, in the case that the frequency domain RB number of the control resource set does not satisfy the 235 rule, the base station needs to perform the operation of S105 so that the frequency domain RB number satisfies the 235 rule. Therefore, in this step, it is determined whether the number of frequency domain RBs of the target control resource set satisfies the 235 rule.
S104, the base station performs preset sending processing on the target control resource set and sends the target control resource set to the terminal.
In the case that the frequency domain RB number of the target control resource set conforms to the 235 rule, the operation of this step is performed.
In this step, the specific processing operation of the preset sending processing is the prior art, and is not described herein again.
S105, the base station increases the target quantity of redundant RBs at the position of the RB with the maximum number of the target control resource set, and the filled control resource set with the frequency domain RB quantity meeting the 235 principle is obtained.
The base station performs the operation of this step under the condition that the frequency domain RB number of the target control resource set does not conform to the 235 rule.
In this step, the base station adds a target number of redundant RBs at the position of the RB with the largest number of the target control resource set, and in this embodiment, for the convenience of description, the control resource set after adding the redundant RBs is referred to as a post-padding control resource set.
Assuming that the frequency domain RBs in the control resource set are RBs with the numbers of 4-255, a target number of redundant RBs are added at the position of the RB with the maximum number, namely the position of the RB with the number of 255 is added with the target number of redundant RBs.
In this step, the determination of the target number may include the following steps a1 to a 2:
and A1, determining the minimum value meeting the 235 principle in the frequency domain RB number values larger than the control resource set as a target value.
Assuming that the frequency domain RBs in the control resource set are RBs with numbers of 4-255, the number of the frequency domain RBs is 252, in this step, the minimum value that satisfies the 235 rule among values greater than 252 is 256, and the target value is 256.
A2, the difference between the target value and the frequency domain RB number is used as the target number.
Also taking the frequency domain RB number of 252 and the target value of 256 as an example, in this step, the target number is the difference between 256 and 252, i.e., the value of the target number is 4.
In order to visually demonstrate the increase of the target number of redundant RBs, the present embodiment presents a schematic diagram shown in fig. 3. The horizontal axis of fig. 3 represents the time domain, and the vertical axis represents the frequency domain. Here, fig. 3 shows that the number of RBs under the bandwidth is 264, that is, the RBs indicated by "264 RB full band" in fig. 3. The value from "4" to "255" from the vertical axis is the frequency domain RB number range of the control resource set, that is, the frequency domain RB number of the control resource set is 252. 4 redundant RBs are added starting with the RB numbered "255".
And S106, the base station performs preset sending processing on the filled control resource set and sends the control resource set to the terminal.
In this step, the transmission processing operation performed by the base station is the prior art, and is not described herein again.
Fig. 4 is a demodulation method of PDCCH resources provided in an embodiment of the present application, where an execution subject is a terminal, and the method may include the following steps:
s401, the terminal receives configuration information of a control resource set for carrying PDCCH information.
In this step, the configuration information received by the terminal is the same as the configuration information in S101, and is not described again here.
S402, under the condition that the terminal receives the instruction of the PDCCH demodulation information, the terminal judges whether the frequency domain RB quantity of the control resource set in the configuration information accords with a 235 principle, if so, S403 is executed, and if not, S404 is executed.
In this embodiment, since the terminal configures the frequency domain RB number of the control resource set in the configuration information received by the terminal, in this step, the terminal may determine whether the frequency domain RB number of the control resource set conforms to the 235 rule. Wherein,
s403, the terminal receives the control resource set.
The terminal performs the operation of this step under the condition that the number of frequency domain RBs controlling the resource set in the configuration information conforms to the 235 principle.
After the present step is executed, S405 is executed.
S404, the terminal adds the RB with the target number at the position of the RB with the maximum number in the control resource set, and receives the control resource set of which the frequency domain RB number meets the 235 principle.
The terminal performs the operation of this step in the case that the frequency domain RB of the control resource set in the configuration information does not comply with the 235 rule.
In this step, the process of determining the target number by the terminal is the same as the steps a1 to a2, and is not described herein again.
In this step, the specific implementation manner that the terminal adds the RB with the target number in the RB position with the largest number may refer to the process of adding the redundant RB by the base station, which is not described herein again.
After the terminal performs this step, the terminal performs S405.
S405, the terminal determines resources carrying PDCCH information from the received control resource set.
S406, the terminal acquires the PDCCH information from the resources carrying the PDCCH information.
In this embodiment, the specific implementation manner of S405 to S406 is the prior art, and is not described herein again.
To show the gain that can be achieved by expanding the number of different symbols of the PDCCH in the embodiment. For voice service, assuming a standard definition voice rate of 16Kbps and a packet transmission interval of 20ms, each packet has a TBsize of about 328 bits. TBSize is about N according to TBSize formulainfo＝NRE·R·QmV is estimated by taking 4 as the difference point MCS where the terminal is located, where R is 0.125, Qm is 1, and v is 1, so 328 is NRE 0.125, NRE is 2600, that is, 2600 REs are needed to transmit a voice packet once.
Table 2 shows that, in the satellite communication system suitable for voice services, when the maximum OFDM symbol extension of the optional PDCCH is 4, or 5, or 6, 1000 users performing voice services simultaneously are scheduled, and the number of TTIs used in comparison with the existing scheme (3 symbols) is greatly reduced, that is, the scheduling delay is reduced.
TABLE 2
Fig. 5 is a base station according to an embodiment of the present application, including at least one processor, and a transmitter, a memory, and a bus connected to the processor, where the processor communicates with the memory and the transmitter via the bus respectively;
the transmitter is configured to transmit configuration information of a control resource set for carrying PDCCH information to a terminal; the configuration information includes: the number of OFDM symbols occupied by the control resource set in a time domain and the number of frequency domain RBs of the control resource set; the number of the OFDM symbols is not less than 4 and not more than 13, and/or the number of the frequency domain RBs is one of the values of multiples of 6 in a preset value range;
the processor is configured to, when an uplink and a downlink service of a terminal are detected, fill PDCCH information in at least part of resources of the control resource set to obtain a target control resource set; under the condition that the frequency domain RB quantity of the target control resource set does not meet the 235 principle, adding a target quantity redundant RB at the RB position with the maximum number of the target control resource set to obtain a filled control resource set of which the frequency domain RB quantity meets the 235 principle;
and the transmitter is also used for carrying out preset transmission processing on the filled control resource set obtained by the processor and transmitting the control resource set to a terminal.
Optionally, the processor is further configured to perform the sending process on the target control resource set and control a sender to send to a terminal under the condition that the frequency domain RB number of the target control resource set conforms to a 235 principle.
Fig. 6 is a terminal according to an embodiment of the present application, including at least one processor, and a receiver, a memory, and a bus connected to the processor, where the processor communicates with the memory and the receiver via the bus respectively;
the receiver is configured to receive configuration information of a control resource set for carrying PDCCH information;
the processor is configured to determine whether the frequency domain RB number of the control resource set in the configuration information conforms to a 235 rule under the condition that the receiver receives the PDCCH demodulation information instruction; under the condition that the frequency domain RB of the control resource set in the configuration information does not accord with the 235 principle, the receiver is controlled to receive the control resource set of which the frequency domain RB quantity meets the 235 principle by adding a target quantity RB at the RB position with the largest number in the control resource set; determining resources carrying PDCCH information from the received control resource set; and acquiring the PDCCH information from resources carrying the PDCCH information.
Optionally, the processor is further configured to, when receiving the instruction to demodulate the PDCCH information, determine whether the number of frequency domain RBs of the control resource set in the configuration information conforms to a 235 rule, and before determining a resource carrying the PDCCH information from the received control resource set, control the receiver to receive the control resource set when the number of frequency domain RBs of the control resource set in the configuration information conforms to the 235 rule.
Optionally, the processor is further configured to determine a value of the target number;
the processor, configured to determine a value of the target number, includes:
the processor is specifically configured to determine, as a target value, a value that minimally satisfies a 235 criterion among the number values of the frequency domain RBs that are larger than the control resource set; and taking the difference between the target value and the frequency domain RB quantity as the target quantity.
The functions described in the method of the embodiment of the present application, if implemented in the form of software functional units and sold or used as independent products, may be stored in a storage medium readable by a computing device. Based on such understanding, part of the contribution to the prior art of the embodiments of the present application or part of the technical solution may be embodied in the form of a software product stored in a storage medium and including several instructions for causing a computing device (which may be a personal computer, a server, a mobile computing device or a network device) to execute all or part of the steps of the method described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts among the embodiments are referred to each other.
In the above description of the disclosed embodiments, features described in various embodiments in this specification can be substituted for or combined with each other to enable those skilled in the art to make or use the present application.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A method for allocating PDCCH resources is applied to a base station, and the method comprises the following steps:
sending configuration information of a control resource set for bearing PDCCH information to a terminal; the configuration information includes: the number of OFDM symbols occupied by the control resource set in a time domain and the number of frequency domain RBs of the control resource set; the number of the OFDM symbols is not less than 4 and not more than 13, and/or the number of the frequency domain RBs is one of the values of multiples of 6 in a preset value range;
under the condition that the uplink and downlink services of the terminal are detected, filling PDCCH information on at least part of resources of the control resource set to obtain a target control resource set;
under the condition that the frequency domain RB quantity of the target control resource set does not meet the 235 principle, adding a target quantity redundant RB at the RB position with the maximum number of the target control resource set to obtain a filled control resource set of which the frequency domain RB quantity meets the 235 principle;
and carrying out preset sending processing on the filled control resource set and sending the control resource set to a terminal.
2. The method of claim 1, further comprising:
and under the condition that the frequency domain RB quantity of the target control resource set conforms to a 235 principle, performing the sending processing on the target control resource set and sending the target control resource set to a terminal.
3. A method for demodulating PDCCH resources, which is applied to a terminal, comprises the following steps:
receiving configuration information of a control resource set for carrying PDCCH information;
under the condition of receiving a PDCCH (physical Downlink control channel) information demodulation instruction, judging whether the frequency domain RB number of a control resource set in the configuration information conforms to a 235 principle;
under the condition that the frequency domain RB of the control resource set in the configuration information does not accord with the 235 principle, adding a target number of RBs at the position of the RB with the largest number in the control resource set, and receiving the control resource set of which the frequency domain RB number meets the 235 principle;
determining resources carrying PDCCH information from the received control resource set;
and acquiring the PDCCH information from resources carrying the PDCCH information.
4. The method according to claim 3, wherein the determining of the target number value comprises:
determining a value which satisfies the 235 principle at minimum in the number values of the frequency domain RBs which are larger than the control resource set as a target value;
and taking the difference between the target value and the frequency domain RB quantity as the target quantity.
5. The method of claim 3, wherein after determining whether the number of frequency domain RBs of the control resource set in the configuration information conforms to the 235 rule in case of receiving the instruction for demodulating PDCCH information, and before determining the resources carrying PDCCH information from the received control resource set, further comprising:
and receiving the control resource set under the condition that the frequency domain RB number of the control resource set in the configuration information conforms to the 235 principle.
6. A storage medium comprising a stored program, wherein the program executes the PDCCH resource allocation method according to any one of claims 1-2.
7. A base station, comprising at least one processor, and a transmitter, a memory and a bus connected to the processor, wherein the processor, the memory and the transmitter respectively complete communication with each other through the bus;
the transmitter is configured to transmit configuration information of a control resource set for carrying PDCCH information to a terminal; the configuration information includes: the number of OFDM symbols occupied by the control resource set in a time domain and the number of frequency domain RBs of the control resource set; the number of the OFDM symbols is not less than 4 and not more than 13, and/or the number of the frequency domain RBs is one of the values of multiples of 6 in a preset value range;
the processor is configured to, when an uplink and a downlink service of a terminal are detected, fill PDCCH information in at least part of resources of the control resource set to obtain a target control resource set; under the condition that the frequency domain RB quantity of the target control resource set does not meet the 235 principle, adding a target quantity redundant RB at the RB position with the maximum number of the target control resource set to obtain a filled control resource set of which the frequency domain RB quantity meets the 235 principle;
and the transmitter is also used for carrying out preset transmission processing on the filled control resource set obtained by the processor and transmitting the control resource set to a terminal.
8. A storage medium comprising a stored program, wherein the program executes the method for demodulating PDCCH resources according to any one of claims 3 to 5.
9. A terminal, comprising at least one processor, and a receiver, a memory and a bus connected with the processor, wherein the processor communicates with the memory and the receiver through the bus respectively;
the receiver is configured to receive configuration information of a control resource set for carrying PDCCH information;
the processor is configured to determine whether the frequency domain RB number of the control resource set in the configuration information conforms to a 235 rule under the condition that the receiver receives the PDCCH demodulation information instruction; under the condition that the frequency domain RB of the control resource set in the configuration information does not accord with the 235 principle, the receiver is controlled to receive the control resource set of which the frequency domain RB quantity meets the 235 principle by adding a target quantity RB at the RB position with the largest number in the control resource set; determining resources carrying PDCCH information from the received control resource set; and acquiring the PDCCH information from resources carrying the PDCCH information.
10. The terminal of claim 9,
the processor is further configured to, in a case where the instruction for demodulating the PDCCH information is received, determine whether the number of frequency domain RBs of the control resource set in the configuration information conforms to a 235 rule, and, before determining a resource carrying the PDCCH information from the received control resource set, control the receiver to receive the control resource set in a case where the number of frequency domain RBs of the control resource set in the configuration information conforms to the 235 rule.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107615851A (en) * | 2015-08-14 | 2018-01-19 | 华为技术有限公司 | Sending method, method of reseptance, user equipment and the base station of ascending control information |
| WO2018095193A1 (en) * | 2016-11-22 | 2018-05-31 | 中国移动通信有限公司研究院 | Information transmission method, base station, system, and computer storage medium |
| CN109600845A (en) * | 2017-09-30 | 2019-04-09 | 华为技术有限公司 | A kind of resource regulating method, the network equipment and communication equipment |
| CN110891288A (en) * | 2018-09-10 | 2020-03-17 | 中国电信股份有限公司 | Physical downlink control channel configuration method, device, base station and storage medium |
| WO2020226406A1 (en) * | 2019-05-03 | 2020-11-12 | 엘지전자 주식회사 | Method and apparatus for transmitting and receiving wireless signals in wireless communication system |
| US20210014843A1 (en) * | 2018-03-30 | 2021-01-14 | Huawei Technologies Co., Ltd. | Resource determining method and apparatus |
-
2021
- 2021-01-29 CN CN202110130379.8A patent/CN112968757B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107615851A (en) * | 2015-08-14 | 2018-01-19 | 华为技术有限公司 | Sending method, method of reseptance, user equipment and the base station of ascending control information |
| WO2018095193A1 (en) * | 2016-11-22 | 2018-05-31 | 中国移动通信有限公司研究院 | Information transmission method, base station, system, and computer storage medium |
| CN109600845A (en) * | 2017-09-30 | 2019-04-09 | 华为技术有限公司 | A kind of resource regulating method, the network equipment and communication equipment |
| US20210014843A1 (en) * | 2018-03-30 | 2021-01-14 | Huawei Technologies Co., Ltd. | Resource determining method and apparatus |
| CN110891288A (en) * | 2018-09-10 | 2020-03-17 | 中国电信股份有限公司 | Physical downlink control channel configuration method, device, base station and storage medium |
| WO2020226406A1 (en) * | 2019-05-03 | 2020-11-12 | 엘지전자 주식회사 | Method and apparatus for transmitting and receiving wireless signals in wireless communication system |
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