CN117880964A - Method for dynamically adjusting receiving bandwidth of user equipment and user equipment - Google Patents
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Abstract
The invention provides a method for dynamically adjusting the receiving bandwidth of user equipment and the user equipment, wherein one radio frequency receiving frequency point is selected from the central frequency point of an initial bandwidth part and the central frequency point of a control resource set to be used as the radio frequency receiving frequency point of the user equipment; and fixing the radio frequency receiving frequency point, and dynamically adjusting the receiving bandwidth by the user equipment according to the target information required to be received so that the receiving bandwidth covers the bandwidth of the frequency domain resource used for transmitting the target information. The RF frequency points are not required to be switched when different channels are received, so that the switching operation of the frequency points is reduced, the processing time and resources of the UE are greatly saved, and the receiving efficiency is improved; the stability of signal receiving is improved, so that the UE can receive different channels simultaneously in an idle state or an inactive state, and the performance and efficiency of the network are further optimized.
Description
Technical Field
The present invention relates to the field of new wireless communication technologies, and in particular, to a method for dynamically adjusting a receiving bandwidth of a user equipment and the user equipment.
Background
In current 5G communication systems, a redcap UE (reduced capability user equipment) and a non-redcap UE can access the same cell of the same network. The maximum bandwidth supported by the redcap UE is 20M, however, the initial BWP (bandwidth deployment) bandwidth of the cell may exceed 20M, which exceeds the processing capability of the UE. In this regard, the network may specifically configure a dedicated redcap initial BWP for the redcap UE, and this BWP may not include coreset0 or may include coreset0 in part. In this configuration scenario, the redcap UE needs to receive and measure the NCD SSB (undefined SSB) channel on redcap initial BWP, and also needs to switch to CORESET0 for receiving broadcast channel traffic such as PAGING.
However, since redcap initial BWP may not contain coreset0 and the center frequency points may not be uniform, this may result in the UE needing to frequently switch frequency points between receiving SSB measurement channels and receiving PAGING broadcast channels. This requires a lot of initialization and hardware setup in the frequency point handover process for Radio Frequency (RF) systems, and requires a long GAP time to complete the handover, which has a great impact on power consumption and also a great stress on the processing capability of the UE.
Disclosure of Invention
Based on the above problems, the present invention provides a method for dynamically adjusting a receiving bandwidth of a user equipment and the user equipment, so as to achieve the purpose of reducing frequency point switching as much as possible.
A method of dynamically adjusting a user equipment reception bandwidth, comprising:
a1, selecting a radio frequency receiving frequency point serving as user equipment from a central frequency point with frequency domain resources being an initial bandwidth part and a central frequency point with frequency domain resources being a control resource set;
and step A2, fixing the radio frequency receiving frequency point, and dynamically adjusting the receiving bandwidth by the user equipment according to the target information required to be received so that the receiving bandwidth covers the bandwidth of the frequency domain resource used for transmitting the target information.
Further, before the step A1, the method further includes:
step A01, calculating the total bandwidth size of the initial bandwidth part and the bandwidth size of the control resource set;
step A02, judging whether the total bandwidth exceeds the maximum receiving bandwidth supported by the user equipment:
if yes, executing the step A03;
if not, executing the step A1;
step a03, receiving target information transmitted on the control resource set using the first antenna portion and receiving target information transmitted on the initial bandwidth portion using the second antenna portion.
Further, step A1 includes:
step A11, obtaining a receiving period of the target information transmitted on the control resource set as a first receiving period, and obtaining a receiving period of the target information transmitted on the initial bandwidth part as a second receiving period;
step a12, comparing the first reception period with the second reception period,
if the second receiving period is greater than the first receiving period, executing the step A13;
if the second receiving period is smaller than the first receiving period, executing the step A14;
if the second receiving period is the same as the first receiving period, executing step A15;
step A13, taking a central frequency point of the control resource set as a radio frequency receiving frequency point of the user equipment;
step A14, taking the central frequency point of the initial bandwidth part as the radio frequency receiving frequency point of the user equipment;
and step A15, randomly selecting one radio frequency receiving frequency point from the central frequency point of the initial bandwidth part and the central frequency point of the control resource set as the radio frequency receiving frequency point of the user equipment.
Further, step A2 includes:
when only the target information transmitted on the control resource set needs to be received, the receiving bandwidth is enabled to cover the bandwidth of the control resource set;
when only the target information transmitted on the initial bandwidth part needs to be received, making the received bandwidth to cover the bandwidth of the initial bandwidth part;
when it is required to simultaneously receive the target information transmitted on the control resource set and the initial bandwidth part, the reception bandwidth is made to simultaneously cover the bandwidth of the initial bandwidth part and the bandwidth of the control resource set.
Further, the user equipment is a reduced capability device.
A ue, configured to implement a method for dynamically adjusting a reception bandwidth of the ue, where the method includes:
the frequency point decision module is used for selecting one of a central frequency point with the frequency domain resource being an initial bandwidth part and a central frequency point with the frequency domain resource being a control resource set as a radio frequency receiving frequency point;
the dynamic adjustment module is connected with the frequency point decision module and is used for fixing the radio frequency receiving frequency point, and dynamically adjusting the receiving bandwidth according to the target information required to be received so that the receiving bandwidth covers the bandwidth of the frequency domain resource used for transmitting the target information.
Further, the method further comprises the following steps:
a bandwidth calculation module for calculating a total bandwidth size of both a bandwidth size of the initial bandwidth portion and a bandwidth size of the control resource set;
the capacity judging module is connected with the bandwidth calculating module and is used for judging whether the total bandwidth exceeds the maximum receiving bandwidth supported by the user equipment or not to obtain a judging result;
the frequency point decision module is also connected with the capacity judgment module and is used for selecting one of the central frequency point of the initial bandwidth part and the central frequency point of the control resource set as a radio frequency receiving frequency point when the total bandwidth is not more than the maximum receiving bandwidth supported by the user equipment as a judgment result;
and the antenna selection module is used for receiving the target information transmitted on the control resource set by using the first antenna part and receiving the target information transmitted on the initial bandwidth part by using the second antenna part when the total bandwidth exceeds the maximum receiving bandwidth supported by the user equipment as a judgment result.
Further, the frequency point decision module includes:
a period acquisition unit configured to acquire a reception period of the target information transmitted on the control resource set as a first reception period, and acquire a reception period of the target information transmitted on the initial bandwidth portion as a second reception period;
the period comparing unit is connected with the period obtaining unit and is used for comparing the first receiving period with the second receiving period to obtain a comparison result;
the frequency point selection unit is connected with the period comparison unit and is used for:
when the comparison result is that the second receiving period is larger than the first receiving period, taking the central frequency point of the control resource set as the radio frequency receiving frequency point of the user equipment;
when the comparison result is that the second receiving period is smaller than the first receiving period, taking the central frequency point of the initial bandwidth part as the radio frequency receiving frequency point of the user equipment;
and when the comparison result shows that the second receiving period is equal to the first receiving period, arbitrarily selecting one radio frequency receiving frequency point from the central frequency point of the initial bandwidth part and the central frequency point of the control resource set as the radio frequency receiving frequency point of the user equipment.
Further, the dynamic adjustment module is configured to perform:
when only the target information transmitted on the control resource set needs to be received, enabling the receiving bandwidth to cover the bandwidth of the control resource set;
when only the target information transmitted on the initial bandwidth part needs to be received, enabling the receiving bandwidth to cover the bandwidth of the initial bandwidth part;
when it is required to simultaneously receive the target information transmitted on the control resource set and the initial bandwidth part, the reception bandwidth is made to simultaneously cover the bandwidth of the initial bandwidth part and the bandwidth of the control resource set.
Further, the user equipment is a reduced capability device.
The beneficial technical effects of the invention are as follows: because the RF frequency points do not need to be switched when different channels are received, the switching operation of the frequency points is reduced, the processing time and resources of the UE are greatly saved, and the receiving efficiency is improved; by simultaneously receiving different channel information on the same RF frequency point, the problem of unstable signal reception possibly caused by frequency point switching is reduced, the stability of signal reception is improved, the UE can simultaneously receive different channels in an idle or inactive state, and the performance and efficiency of the network are further optimized.
Drawings
FIGS. 1-3 are flow charts of steps of a method for dynamically adjusting a reception bandwidth of a user equipment according to the present invention;
fig. 4 is a schematic block diagram of a ue according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
The invention is further described below with reference to the drawings and specific examples, which are not intended to be limiting.
Referring to fig. 1, the present invention provides a method for dynamically adjusting a receiving bandwidth of a user equipment, including:
a1, selecting a radio frequency receiving frequency point serving as user equipment from a central frequency point with frequency domain resources being an initial bandwidth part and a central frequency point with frequency domain resources being a control resource set;
and step A2, fixing the radio frequency receiving frequency point, and dynamically adjusting the receiving bandwidth by the user equipment according to the target information required to be received so that the receiving bandwidth covers the bandwidth of the frequency domain resource used for transmitting the target information.
The radio frequency receiving frequency point and the receiving bandwidth are two important parameters in wireless communication, and the radio frequency receiving frequency point refers to the frequency point of a wireless receiving device for receiving a wireless signal in the air, namely the receiving frequency. Different receiving frequencies may receive different wireless signals. Reception bandwidth this refers to the frequency range that a wireless receiving device can receive at a particular reception frequency, i.e. what we say is a bandwidth. The greater the bandwidth, the more signals the wireless receiving device can receive.
Further, the user equipment is a reduced capability device. RedCap is a class of devices defined by 3GPP, collectively Reduced Capability Devices, i.e., reduced performance devices. The power consumption and cost of such devices are relatively low, but also relatively weak in performance, typically supporting only a narrow bandwidth and a low data rate.
Specifically, the initial bandwidth portion is redcap initial BWP. In the 5G communication technology, BWP (Bandwidth Part) is an abbreviation of bandwidth portion, which is an important concept in the 5G NR (New Radio) system. BWP is a proposed concept to improve spectrum utilization and system performance and reduce device complexity. And redcap initial BWP is BWP designated for initial access. The configuration of this BWP is known to the device before it has access to the network, and the device may use this BWP to complete the initial access procedure. The RedCap device may only support a narrower bandwidth, e.g., 5MHz, and therefore the initial BWP needs to be configured to such a narrower bandwidth to ensure that the RedCap device can access the network.
Specifically, the control resource set is CORESET0.CORESET0 (Control Resource Set 0) is an important concept in 5G NR (new radio) which is a predefined, fixed set of control resources for the transmission of downlink control information. CORESET0 is mainly used for transmitting system information and Paging information, and transmitting PDCCH information in an initial access procedure. In 5G NR, CORESET is a set of OFDM (orthogonal frequency division multiplexing) symbols and REs (resource elements) for PDCCH (physical downlink control channel) transmission. CORESET0 is a special case of these CORESETs whose location and configuration are fixed throughout the system so that the UE (user equipment) can find it without receiving any dedicated or common signal configuration. This enables the UE to receive important system information and Paging information during initial access, or without any active connection
Specifically, the target information transmitted on the control resource set is Paging information (Paging information). Paging is a signal transmission method in wireless communication, and is mainly used for informing UE (User Equipment) that new data needs to be received. When the UE is in Idle mode, the UE will wake up periodically to listen for Paging messages in order to save power. The Paging message is typically transmitted through the PDCCH, which in turn is carried through the physical resources of CORESET.
Specifically, the target information transmitted on the initial bandwidth portion is a non-cell-defined SSB, i.e., NCD-SSB, non cell defined SSB refers to SSB that is not explicitly defined in the system information.
Redcap initial BWP for a redcap UE, the bandwidth of the initial BWP may exceed the maximum capability supported by the UE, and if a large number of redcap UEs reside in the initial BWP, the frequency domain resource of the portion may be congested, so the protocol introduces the concept of Redcap initial BWP, repartitioning the redcap UE with a BWP that may not include CORESET0 or that may partially include CORESET0; in idle or inactive state, the radio frequency receiving frequency point of the redcap UE is generally consistent with the center frequency point of redcap initial BWP. For the redcap UE, in the prior art, if the current RF receiving frequency point of the UE is at the center frequency point of redcap initial BWP, when the UE needs to receive paging, the RF needs to switch the RF receiving center frequency point to the center position of CORESET0. If the NCD-SSB is subsequently received, then the center frequency of the RF is switched back to redcap initial BWP, which results in frequent RF switching. For the radio frequency hardware, the switching of the radio frequency point is complicated, a large amount of initialization work is needed for the radio frequency hardware, according to different UE capabilities, the protocol is required to be 35us/140us/210us for the radio frequency switching time, the redcap UE is the reduced-capability 5G UE, and the radio frequency switching time of most manufacturers is more than 140 us. Not only is power consumption wasted, but also when the paging and NCS-SSB reception of CORESET0 schedule overlap in time, the radio frequency has no way to receive at the same time, but can only select 1 from 2, which may drop the paging message to make the call impossible.
For radio frequency hardware, the cost of switching frequency points is very high, but the cost of dynamically changing the receiving bandwidth is very low, so that the invention realizes that the radio frequency receiving frequency points are fixed without switching the radio frequency points when receiving different channels, thereby greatly saving the processing time and resources of UE and improving the receiving efficiency. By simultaneously receiving NCD-SSB and paging information on the same RF frequency point, the problem of unstable signal reception possibly caused by frequency point switching is reduced, and the stability of signal reception is improved. And the UE can receive different channel information at the same time in an idle or inactive state, so that the performance and efficiency of the network are further optimized. Thus, the use experience of the user is finally improved.
Referring to fig. 2, further, step A1 further includes:
step A01, calculating the total bandwidth size of the initial bandwidth part and the bandwidth size of the control resource set;
step A02, judging whether the total bandwidth exceeds the maximum receiving bandwidth supported by the user equipment:
if yes, executing the step A03;
if not, executing the step A1;
step a03, receiving target information transmitted on the control resource set using the first antenna portion and receiving target information transmitted on the initial bandwidth portion using the second antenna portion.
Specifically, the first antenna portion and the second antenna portion do not overlap when it is desired to receive both the target information transmitted on the set of control resources and the target information transmitted on the initial bandwidth portion.
According to the protocol characteristics, two antennas of the UE can be used for respectively receiving paging information on CORESET0 and NCD-SSB on Redcap initial BWP, diversity receiving gain of a bit 2 antenna is lost by about 1-2 db, and the problems of power consumption caused by frequent switching of radio frequency hardware and packet loss caused by switching of frequency points in a collision scene are greatly improved.
Referring to fig. 3, further, step A1 includes:
step A11, obtaining a receiving period of the target information transmitted on the control resource set as a first receiving period, and obtaining a receiving period of the target information transmitted on the initial bandwidth part as a second receiving period;
step a12, comparing the first receiving period with the second receiving period:
if the second receiving period is greater than the first receiving period, executing the step A13;
if the second receiving period is smaller than the first receiving period, executing the step A14;
if the second receiving period is the same as the first receiving period, executing step A15;
step A13, taking a central frequency point of the control resource set as a radio frequency receiving frequency point of the user equipment;
step A14, taking the central frequency point of the initial bandwidth part as the radio frequency receiving frequency point of the user equipment;
and step A15, randomly selecting one radio frequency receiving frequency point from the central frequency point of the initial bandwidth part and the central frequency point of the control resource set as the radio frequency receiving frequency point of the user equipment.
Firstly, judging the paging receiving period on CORESET0 and the NCD-SSB receiving period on redcap initial BWP, wherein the period is smaller, the receiving density is higher, and the radio frequency receiving frequency points are aligned to the receiving period. For example, the receiving density of CORESET0 is greater than the receiving density of NCD-SSB on redcap initial BWP, so that the radio frequency receiving frequency point of the UE is fixed at the center frequency point of CORESET0, and the frequency of dynamic amplification of bandwidth can be reduced as much as possible.
Further, step A2 includes:
when only the target information transmitted on the control resource set needs to be received, enabling the receiving bandwidth to cover the bandwidth of the control resource set;
when only the target information transmitted on the initial bandwidth part needs to be received, enabling the receiving bandwidth to cover the bandwidth of the initial bandwidth part;
when it is required to simultaneously receive the target information transmitted on the control resource set and the initial bandwidth part, the reception bandwidth is made to simultaneously cover the bandwidth of the initial bandwidth part and the bandwidth of the control resource set.
Specifically, the need to simultaneously receive the target information transmitted on the control resource set and the target information transmitted on the initial bandwidth portion means that the target information reception time point transmitted on the control resource set and the target information reception time point transmitted on the initial bandwidth portion at least partially coincide.
If the radio frequency receiving frequency point of the user equipment is at the central frequency point of the control resource set:
when only Paging information transmitted on CORESET0 is received, the reception bandwidth of the UE is aligned with the bandwidth of CORESET0.
When only the redcap initial BWP bandwidth-associated NCD-SSB is received or the Paging information and the NCD-SSB are required to be received simultaneously, the receiving bandwidth of the UE is adjusted, and the redcap initial BWP bandwidth is covered. It is also necessary to tell the physical layer of the user equipment the actual frequency domain location of the NCD-SSB.
If the radio frequency receiving frequency point of the user equipment is at the center frequency point of redcap initial BWP:
when only NCD-SSB is received, the reception bandwidth of the UE is aligned with the bandwidth of redcap initial BWP.
When only Paging information is needed to be received or when the Paging information and NCD-SSB are needed to be received at the same time, the receiving bandwidth of the UE is adjusted, and the bandwidth of CORESET0 is covered.
Referring to fig. 4, the present invention further provides a ue, configured to implement a method for dynamically adjusting a receiving bandwidth of the ue, where the method includes:
the frequency point decision module (1) is used for selecting one of a central frequency point with frequency domain resources being an initial bandwidth part and a central frequency point with frequency domain resources being a control resource set as a radio frequency receiving frequency point;
the dynamic adjustment module (2) is connected with the frequency point decision module (1) and is used for fixing the radio frequency receiving frequency point, and dynamically adjusting the receiving bandwidth according to the target information required to be received, so that the receiving bandwidth covers the bandwidth of the frequency domain resource used for transmitting the target information.
The invention realizes that the RF frequency point is not required to be switched when different channels are received by fixing the RF frequency point, thereby greatly saving the processing time and resources of the UE and improving the receiving efficiency. By simultaneously receiving NCD-SSB and paging information on the same RF frequency point, the problem of unstable signal reception possibly caused by frequency point switching is reduced, and the stability of signal reception is improved. And the UE can receive different channel information at the same time in an idle or inactive state, so that the performance and efficiency of the network are further optimized. Thus, the use experience of the user is finally improved.
Further, the method further comprises the following steps:
a bandwidth calculation module (3) for calculating a total bandwidth size of both the bandwidth size of the initial bandwidth portion and the bandwidth size of the control resource set;
the capacity judging module (4) is connected with the bandwidth calculating module (3) and is used for judging whether the total bandwidth exceeds the maximum receiving bandwidth supported by the user equipment or not to obtain a judging result;
the frequency point decision module (1) is also connected with the capacity judgment module (4) and is used for selecting one from the central frequency point of the initial bandwidth part and the central frequency point of the control resource set as a radio frequency receiving frequency point when the total bandwidth is not more than the maximum receiving bandwidth supported by the user equipment as a judgment result;
an antenna selection module (5), a connection capability judging module (4), configured to receive, when the total bandwidth exceeds the maximum receiving bandwidth supported by the ue as a result of the judgment, the target information transmitted on the control resource set using the first antenna portion, and to receive the target information transmitted on the initial bandwidth portion using the second antenna portion.
Further, the frequency point decision module (1) includes:
a period acquisition unit (11) for acquiring a reception period of the target information transmitted on the control resource set as a first reception period and a reception period of the target information transmitted on the initial bandwidth portion as a second reception period;
the period comparison unit (12) is connected with the period acquisition unit (11) and is used for comparing the first receiving period with the second receiving period to obtain a comparison result;
a frequency point selection unit (13) connected with the period comparison unit (12) and used for:
when the comparison result is that the second receiving period is larger than the first receiving period, taking the central frequency point of the control resource set as the radio frequency receiving frequency point of the user equipment;
when the comparison result is that the second receiving period is smaller than the first receiving period, taking the central frequency point of the initial bandwidth part as the radio frequency receiving frequency point of the user equipment;
and when the comparison result shows that the second receiving period is equal to the first receiving period, arbitrarily selecting one radio frequency receiving frequency point from the central frequency point of the initial bandwidth part and the central frequency point of the control resource set as the radio frequency receiving frequency point of the user equipment.
Further, the dynamic adjustment module (2) is configured to perform:
when only the target information transmitted on the control resource set needs to be received, enabling the receiving bandwidth to cover the bandwidth of the control resource set;
when only the target information transmitted on the initial bandwidth part needs to be received, enabling the receiving bandwidth to cover the bandwidth of the initial bandwidth part;
when it is required to simultaneously receive the target information transmitted on the control resource set and the initial bandwidth part, the reception bandwidth is made to simultaneously cover the bandwidth of the initial bandwidth part and the bandwidth of the control resource set.
Further, the user equipment is a capability reduction device, i.e. a RedCap device.
The RedCap is a 5G lightweight user terminal type proposed by 3GPP Rel-17, and the cost of a 5G chip, a module and a terminal is greatly reduced by means of reducing the bandwidth of the terminal, reducing the number of transmitting and receiving antennas, reducing the modulation order and the like. The RedCap devices include video surveillance classes, internet of vehicles (including T-BOX), wearable, etc., as well as devices with low cost communication appeal for power, petrochemical, industrial control, etc.
The foregoing is merely illustrative of the preferred embodiments of the present invention and is not intended to limit the embodiments and scope of the present invention, and it should be appreciated by those skilled in the art that equivalent substitutions and obvious variations may be made using the description and illustrations of the present invention, and are intended to be included in the scope of the present invention.
Claims (10)
1. A method for dynamically adjusting a reception bandwidth of a user device, comprising:
a1, selecting a radio frequency receiving frequency point serving as user equipment from a central frequency point with frequency domain resources being an initial bandwidth part and a central frequency point with frequency domain resources being a control resource set;
and step A2, fixing the radio frequency receiving frequency point, and dynamically adjusting the receiving bandwidth by the user equipment according to the target information required to be received so that the receiving bandwidth covers the bandwidth of the frequency domain resource used for transmitting the target information.
2. The method for dynamically adjusting a receiving bandwidth of a ue according to claim 1, wherein before step A1, further comprises:
step A01, calculating the total bandwidth size of the initial bandwidth part and the bandwidth size of the control resource set;
step a02, determining whether the total bandwidth exceeds the maximum receiving bandwidth supported by the ue:
if yes, executing the step A03;
if not, executing the step A1;
step a03, receiving target information transmitted on the control resource set using a first antenna portion and receiving target information transmitted on the initial bandwidth portion using a second antenna portion.
3. The method for dynamically adjusting the receiving bandwidth of a ue according to claim 1, wherein said step A1 comprises:
step A11, obtaining a receiving period of the target information transmitted on the control resource set as a first receiving period, and obtaining a receiving period of the target information transmitted on the initial bandwidth part as a second receiving period;
step a12, comparing the first receiving period and the second receiving period,
if the second receiving period is greater than the first receiving period, executing the step A13;
if the second receiving period is smaller than the first receiving period, executing the step A14;
if the second receiving period is the same as the first receiving period, executing step A15;
step A13, taking the central frequency point of the control resource set as the radio frequency receiving frequency point of the user equipment;
step A14, taking the central frequency point of the initial bandwidth part as the radio frequency receiving frequency point of the user equipment;
and step A15, selecting one radio frequency receiving frequency point from the central frequency point of the initial bandwidth part and the central frequency point of the control resource set as the radio frequency receiving frequency point of the user equipment.
4. The method for dynamically adjusting the receiving bandwidth of a ue according to claim 1, wherein said step A2 comprises:
when only the target information transmitted on the control resource set needs to be received, enabling the receiving bandwidth to cover the bandwidth of the control resource set;
when only the target information transmitted on the initial bandwidth part needs to be received, making the received bandwidth to cover the bandwidth of the initial bandwidth part;
when the target information transmitted on the control resource set and the initial bandwidth part needs to be received simultaneously, the receiving bandwidth is caused to cover the bandwidth of the initial bandwidth part and the bandwidth of the control resource set simultaneously.
5. The method for dynamically adjusting a receiving bandwidth of a user equipment according to claim 1, wherein the user equipment is a capacity reduction device.
6. A user equipment, characterized by a method for implementing a dynamic adjustment of the reception bandwidth of the user equipment according to any of claims 1-5, comprising:
the frequency point decision module is used for selecting one of a central frequency point with the frequency domain resource being an initial bandwidth part and a central frequency point with the frequency domain resource being a control resource set as a radio frequency receiving frequency point;
the dynamic adjustment module is connected with the frequency point decision module and is used for fixing the radio frequency receiving frequency point and dynamically adjusting the receiving bandwidth according to the target information required to be received so that the receiving bandwidth covers the bandwidth of the frequency domain resource used for transmitting the target information.
7. The user equipment of claim 6, further comprising:
a bandwidth calculation module for calculating a total bandwidth size of both a bandwidth size of the initial bandwidth portion and a bandwidth size of the control resource set;
the capacity judging module is connected with the bandwidth calculating module and is used for judging whether the total bandwidth exceeds the maximum receiving bandwidth supported by the user equipment or not to obtain a judging result;
the frequency point decision module is further connected with the capability judgment module and is used for selecting one of a central frequency point of an initial bandwidth part and a central frequency point of a control resource set as a radio frequency receiving frequency point when the total bandwidth is not more than the maximum receiving bandwidth supported by the user equipment as a result of the judgment;
and the antenna selection module is connected with the capability judging module and is used for receiving the target information transmitted on the control resource set by using a first antenna part and receiving the target information transmitted on the initial bandwidth part by using a second antenna part when the judging result is that the total bandwidth exceeds the maximum receiving bandwidth supported by the user equipment.
8. The user equipment of claim 6, wherein the frequency point decision module comprises:
a period acquisition unit configured to acquire a reception period of the target information transmitted on the control resource set as a first reception period, and acquire a reception period of the target information transmitted on the initial bandwidth portion as a second reception period;
the period comparing unit is connected with the period obtaining unit and is used for comparing the first receiving period with the second receiving period to obtain a comparison result;
the frequency point selection unit is connected with the period comparison unit and is used for:
when the comparison result is that the second receiving period is larger than the first receiving period, taking the central frequency point of the control resource set as the radio frequency receiving frequency point of the user equipment;
when the comparison result is that the second receiving period is smaller than the first receiving period, taking the central frequency point of the initial bandwidth part as the radio frequency receiving frequency point of the user equipment;
and when the comparison result is that the second receiving period is equal to the first receiving period, arbitrarily selecting one radio frequency receiving frequency point from the central frequency point of the initial bandwidth part and the central frequency point of the control resource set as the radio frequency receiving frequency point of the user equipment.
9. The user device of claim 6, wherein the dynamic adjustment module is configured to perform:
when only the target information transmitted on the control resource set needs to be received, enabling the receiving bandwidth to cover the bandwidth of the control resource set;
when only the target information transmitted on the initial bandwidth part needs to be received, enabling the receiving bandwidth to cover the bandwidth of the initial bandwidth part;
when the target information transmitted on the control resource set and the initial bandwidth part needs to be received simultaneously, the receiving bandwidth is caused to cover the bandwidth of the initial bandwidth part and the bandwidth of the control resource set simultaneously.
10. The user equipment of claim 6, wherein the user equipment is a reduced capability device.
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