CN108811113B - Method for receiving downlink control channel and user equipment - Google Patents
Method for receiving downlink control channel and user equipment Download PDFInfo
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- CN108811113B CN108811113B CN201710312942.7A CN201710312942A CN108811113B CN 108811113 B CN108811113 B CN 108811113B CN 201710312942 A CN201710312942 A CN 201710312942A CN 108811113 B CN108811113 B CN 108811113B
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- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 14
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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
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
Abstract
The invention discloses a downlink control channel receiving method, which comprises the following steps: judging whether the PDSCH is received at a time domain position n; and according to the judgment result, determining the frequency domain position of the bandwidth part BP of the PDCCH received at the time domain position n+1, and receiving the PDCCH at the BP of the frequency domain position. Compared with the prior art, the invention determines the frequency domain position of the BP for receiving the PDCCH by judging whether the PDSCH is needed to be received at the time domain position before the current time domain position for receiving the PDCCH, greatly reduces or even eliminates the influence of the adjustment time interval for converting the BP by the UE on the normal received data of the UE, and ensures the receiving performance of the UE and the throughput level of the received data. In addition, the invention also discloses user equipment for receiving the downlink control channel.
Description
Technical Field
The present invention relates to the field of wireless communications technologies, and in particular, to a method for receiving a downlink control channel and a user equipment.
Background
In an NR (New Radio) air interface system, a UE (User equipment) may receive downlink control signaling and data in a part of a large frequency domain bandwidth because the frequency domain processing capability of the UE is limited and the system bandwidth is relatively large. In order to improve the frequency diversity performance of the user, the user may operate in different limited frequency bands at different times, and as shown in fig. 1, we call a limited frequency Band BP (Band Part). When the UE transitions from one BP to another BP at time domain position n+1, an adjustment time is required during which the UE cannot normally receive data, as shown in fig. 2.
When the UE is configured to be able to receive the PDCCH (Physical Downlink Control Channel ) and the PDSCH (Physical Downlink Shared Channel, physical downlink shared channel) in multiple BPs, and the UE can only receive the PDCCH and the PDSCH in one BP at a time, if the position of the BP where the UE receives the PDCCH at each time and the manner in which the UE receives the PDCCH on the BP cannot be properly set, throughput performance of system data reception will be affected.
In view of the foregoing, it is desirable to provide a method and a ue for receiving a downlink control channel that can solve the above-mentioned problems.
Disclosure of Invention
The invention aims at: the method and the user equipment for receiving the downlink control channel have the advantages of overcoming the defects of the prior art and providing the downlink control channel receiving method and the user equipment with better data receiving throughput performance.
In order to achieve the above object, the present invention provides a downlink control channel receiving method, which includes the steps of:
judging whether the PDSCH is received at a time domain position n;
and according to the judgment result, determining the frequency domain position of the bandwidth part BP of the PDCCH received at the time domain position n+1, and receiving the PDCCH at the BP of the frequency domain position.
Preferably, the determining, according to the determination result, the frequency domain position of the BP of the PDCCH received at the time domain position n+1 includes: if the result of the determination is yes, the frequency domain position of the BP receiving PDCCH at time domain position n+1 is the same as the frequency domain position of the BP receiving PDSCH at time domain position n.
Preferably, the determining, according to the determination result, the frequency domain position of the BP of the PDCCH received at the time domain position n+1 includes: if the result of the determination is negative, the frequency domain position of the BP of the PDCCH received at the time domain position n+1 is determined according to whether the PDSCH is received at the time domain position n-k preceding the time domain position n.
Preferably, the determining the frequency domain position of the BP of the PDCCH received at the time domain position n+1 according to whether the PDSCH is received at the time domain position n-k preceding the time domain position n includes: if the PDSCH is received at the time-domain position n-k, the frequency-domain position of the BP of the PDCCH received at the time-domain position n+1 is the same as the frequency-domain position of the BP of the PDSCH received at the time-domain position n-k, where the time-domain position n-k is the nearest time-domain position to the time-domain position n among the several time-domain positions of the PDSCH received.
Preferably, the determining the frequency domain position of the BP of the PDCCH received at the time domain position n+1 according to whether the PDSCH is received at the time domain position n-k preceding the time domain position n includes: if the PDSCH is not received at time domain position n-k, the frequency domain position of the BP receiving the PDCCH at time domain position n+1 is determined by the received base station signaling.
Preferably, the PDCCH is received at a plurality of time-frequency positions of the higher layer signaling configuration, the frequency domain values of the plurality of time-frequency positions of the higher layer signaling configuration are the same, the step of judging whether the PDSCH is received at the time domain position n is performed, and if the time domain value of the plurality of time-frequency positions of the higher layer signaling configuration is t, then t is not equal to n+1.
Preferably, the determining, according to the determination result, the frequency domain position of the BP of the PDCCH received at the time domain position n+1 includes: if the judgment result is yes, the frequency domain position of the BP of the PDCCH is received at the time domain position n+1, and the frequency domain position is determined by the received base station signaling.
Preferably, the determining whether to receive the PDSCH at the time domain position n includes: if PDSCH needs to be received at time domain position n, PDSCH is received at the front part of time domain position n.
Preferably, the PDSCH is received at the front part of the time domain position n, including: PDSCH is received in the first a OFDM symbols of time domain position n, which are preset by agreed rules or indicated by higher layer signaling.
Preferably, the determining, according to the determination result, a frequency domain position of the bandwidth part BP of the PDCCH received at the time domain position n+1, and receiving the PDCCH at the BP of the frequency domain position includes: according to the judgment result, the frequency domain position of the bandwidth part BP of the PDCCH received at the time domain position n+1 is determined, and the PDCCH is received on the time-frequency resource determined by the frequency domain position and the later part of the time domain position n+1.
Preferably, the determining, according to the determination result, a frequency domain position of the bandwidth part BP of the PDCCH received at the time domain position n+1, and receiving the PDCCH on a time-frequency resource determined by the frequency domain position and a later part of the time domain position n+1 includes: and according to the judgment result, determining the frequency domain position of the bandwidth part BP of the PDCCH received at the time domain position n+1, and receiving the PDCCH on a time-frequency resource determined by the frequency domain position and the following b OFDM symbols of the time domain position n+1, wherein the b OFDM symbols are preset by a convention rule or indicated by high-layer signaling.
In order to achieve the above object, the present invention also provides a ue for downlink control channel reception, including:
the judging module is used for judging whether the PDSCH is received at the time domain position n;
and the receiving module is used for determining the frequency domain position of the bandwidth part BP of the PDCCH received at the time domain position n+1 according to the judging result of the judging module, and receiving the PDCCH at the BP of the frequency domain position.
Compared with the prior art, the invention has the technical effects that: the frequency domain position of the BP for receiving the PDCCH is determined by judging whether the PDSCH is required to be received at the time domain position before the current time domain position for receiving the PDCCH, so that the influence of the adjustment time interval for converting the BP by the UE on the normal received data of the UE is greatly reduced or even eliminated, and the receiving performance of the UE and the throughput level of the received data are ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a limited frequency band for UE operation in the background of the invention;
fig. 2 is a schematic diagram of adjustment time for UE to switch BP in the background art of the present invention;
fig. 3 is a flow chart of a downlink control channel receiving method according to the present invention;
fig. 4 is a schematic diagram of a BP of a UE receiving PDCCH in method 1 according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a BP of a UE receiving PDCCH in the first case of method 2 according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a BP of a UE receiving PDCCH in the second case of method 2 according to an embodiment of the present invention;
fig. 7 is a schematic diagram of a BP of a UE receiving PDCCH in the third scenario in method 2 according to an embodiment of the present invention;
fig. 8 is a schematic diagram of a BP of a UE receiving PDCCH in method 3 according to an embodiment of the present invention;
fig. 9 is a schematic diagram of a BP of a UE receiving PDCCH in method 4 according to an embodiment of the present invention;
fig. 10 is a schematic diagram of a UE receiving PDSCH and PDCCH at the same frequency domain location according to the present invention;
fig. 11 is a schematic diagram of a UE receiving PDSCH and PDCCH at different frequency domain locations according to the present invention;
fig. 12 is a schematic diagram of a BP of a UE receiving PDCCH in method 1 according to a second embodiment of the present invention;
fig. 13 is a schematic diagram of a BP of a UE receiving PDCCH in method 2 according to a second embodiment of the present invention;
fig. 14 is a schematic diagram of a BP of a UE receiving PDCCH in method 3 according to a second embodiment of the present invention;
fig. 15 is a block diagram of a ue for downlink control channel reception according to the present invention.
Detailed Description
In order to better understand the aspects of the present disclosure, the following description will clearly and completely describe the aspects of the embodiments of the present disclosure with reference to the accompanying drawings in the embodiments of the present disclosure.
In some of the flows described in the specification and claims of this disclosure and in the foregoing figures, a number of operations are included that occur in a particular order, but it should be understood that the operations may be performed in other than the order in which they occur or in parallel, that the order of operations such as 101, 102, etc., is merely for distinguishing between the various operations, and that the order of execution does not itself represent any order of execution. In addition, the flows may include more or fewer operations, and the operations may be performed sequentially or in parallel. It should be noted that, the descriptions of "first" and "second" herein are used to distinguish different messages, devices, modules, etc., and do not represent a sequence, and are not limited to the "first" and the "second" being different types.
The following description of the embodiments of the present disclosure will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the disclosure. Based on the embodiments in this disclosure, all other embodiments that may be made by those skilled in the art without the inventive effort are within the scope of the present disclosure.
Referring to fig. 3, the downlink control channel receiving method of the present disclosure includes the following steps:
step 101, judging whether a PDSCH is received at a time domain position n;
step 102, according to the judgment result, determining the frequency domain position of the bandwidth part BP of the PDCCH received at the time domain position n+1, and receiving the PDCCH at the BP of the frequency domain position.
The downlink control channel receiving method of the present disclosure may be applied to a wireless communication system of a bandwidth capability limited UE. The downlink control channel receiving method of the present disclosure is explained below by several embodiments.
Example 1
This embodiment describes a procedure in which a UE determines to receive BP (Band Part, bandwidth Part) of PDCCH (Physical Downlink Control Channel ) for transmitting DCI (Downlink Control Information, downlink control information) and PDSCH (Physical Downlink Shared Channel ) for transmitting data.
When the UE is configured with more than one BP, and the bandwidth range of all the BP configured to the UE exceeds the bandwidth capability of the UE due to the bandwidth capability limit of the UE, and the UE cannot receive PDCCH and PDSCH in a plurality of BP at the same time; or for other reasons, when the UE cannot receive PDCCH and PDSCH in multiple BPs at the same time, the UE receives PDCCH by determining through receiving configuration information of the base station, and in the methods, BP of the UE receiving PDSCH is dynamically indicated through an information field in DCI.
Implementation of method 1
Referring to fig. 4, the ue determines to detect and receive a PDCCH on one or more configured BPs by receiving a higher layer signaling configuration. In this case, the BP of the UE detecting the received PDCCH may or may not be the same as the BP of the previous detected received PDSCH. When the BP of the UE detecting the received PDCCH is different from the BP of the previous detected received PDSCH, a time interval is required for adjusting the frequency, and during this time interval, the UE cannot correctly receive the downlink control information and data.
Implementation method 2
If the BP of the UE detecting the PDCCH is configured by the higher layer signaling, the UE needs to switch the BP frequently to detect and receive the PDSCH and the PDCCH respectively, which wastes resources. Therefore, the BP of the UE detecting the PDCCH needs to be set to be dynamically changeable.
For example, if the UE receives BP number m of PDSCH in slot n, the UE detects PDCCH in slot n+1 and BP with BP number m, so that the UE does not need an interval time to adjust frequency, which can save resources, as shown in fig. 5.
If the UE does not receive PDSCH in slot n, the UE detects PDCCH on BP with BP number p in slot n+1, p being determined by the UE receiving signaling (e.g., higher layer signaling) of the base station, as shown in fig. 6. Alternatively, if the UE does not receive the PDSCH in the slot n, the UE detects the PDCCH in the slot n+1 on the BP with BP number p, which is the BP number on the slot closest to the slot n where the UE received the PDSCH before the slot n, and if the PDSCH was not received before, the UE determines the BP number p by receiving signaling (e.g., higher layer signaling) of the base station, as shown in fig. 7.
By the design, time delay and resource consumption for converting BP by the UE can be avoided as much as possible. In this case, the BP of the UE detecting the PDCCH may be the same as the BP of the previously received PDSCH.
Implementation method 3
Please refer to fig. 8. The UE detects the received PDCCH on a BP configured by a high-layer signaling in the configured time slot. For example, the UE detects PDCCH on BP with sequence number m of one higher layer signaling configuration in a periodically distributed slot, such as the first slot of every 10 slots; in other slots, the UE detecting the BP receiving the PDCCH may be dynamically changed, for example, the UE detects the PDCCH on a BP with sequence number q indicated by physical layer or MAC (media access) layer signaling, which may be transmitted on the PDCCH of the BP configured by higher layer signaling.
Implementation method 4
The UE detects the received PDCCH on a BP configured by a high-layer signaling in the configured time slot. For example, the UE detects PDCCH on BP with sequence number m of one higher layer signaling configuration in a periodically distributed slot, such as the first slot of every 10 slots; in other slots, the BP of the UE detecting the received PDCCH may be dynamically changed, for example, the method described in embodiment one of implementation 2 is used to determine the BP of the UE detecting the PDCCH in other slots.
For example, if the UE receives BP number h of PDSCH in slot n, the UE detects PDCCH on BP with BP number h in slot n+1, so that the UE does not need an interval time to adjust frequency, which can save resources, as shown in fig. 9. If the UE does not receive PDSCH in time slot n, the UE detects PDCCH in time slot n+1 on BP with sequence number m configured by higher layer signaling. Or if the UE does not receive PDSCH in time slot n, the UE detects PDCCH in time slot n+1 on BP with BP number p, where p is the BP number on the time slot closest to time slot n where the UE received PDSCH before time slot n, and if PDSCH has not been received before, the UE determines BP number p by receiving signaling from the base station.
Implementation method 5
The BP of the UE receiving the PDCCH is changed, and the UE keeps the BP of the UE detecting the PDCCH unchanged until the UE changes the BP of the UE detecting the PDCCH in receiving the physical layer or MAC (media access) layer signaling indication, for example, the UE configures two BPs and detects the PDCCH on BP1 through higher layer signaling, if the UE does not detect the PDCCH on BP with sequence number 2 indicated by the physical layer or MAC (media access) layer signaling indication, the UE always detects the PDCCH on BP1, if the UE detects the PDCCH on BP with sequence number 2 indicated by the physical layer or MAC (media access) layer signaling indication, the UE detects the PDCCH on BP2 until receiving a new physical layer or MAC (media access) layer signaling indication. Or, the UE determines that the UE detects BP of the PDCCH through measurement and reports the BP to the base station.
Example two
When the UE detects the reception PDSCH in the slot n and detects the reception PDCCH in the slot n+1, the BP of the UE detecting the reception PDCCH may be the same as the BP of the previous reception PDSCH (as shown in fig. 10) or may be different from the BP of the previous reception PDSCH (as shown in fig. 11). When the BP of the UE detecting the PDCCH is different from the BP of the previous detected PDSCH (e.g., in the case of implementing methods 1 and 3 in embodiment one), a time interval is required for adjusting the frequency, and during this time interval, the UE cannot correctly receive the downlink control information and data. The present embodiment describes several processing methods in the above case, i.e., when the UE needs to adjust the reception frequency with a time interval between two slots.
Implementation of method 1
Please refer to fig. 12. One approach is that if the UE receives PDSCH in slot n and is to detect PDCCH in slot n+1, the UE does not receive PDSCH in the latter part of the time domain position where PDSCH is received, e.g., in the last L (L is a positive integer, configured by higher layer signaling or preset by the protocol) OFDM symbols of slot n. In this way, the modification to the prior art is small, as the position of the reference symbols of the PDSCH may be unchanged.
Implementation method 2
Please refer to fig. 13. Another processing method is that if the UE receives PDSCH in slot n and wants to detect PDCCH in slot n+1, the UE does not receive PDSCH in the latter part of the time domain position where PDSCH is received, for example in the last P (P is a positive integer, preset by higher layer signaling or by protocol) OFDM symbols of slot n, while the UE detects PDCCH in the latter part of the time domain position where PDCCH is detected, for example starting to receive PDCCH from the q+1 (Q is a positive integer, preset by higher layer signaling or by protocol) OFDM symbols in front of slot n+1. In this way, the time intervals are equally distributed over the two slots, with less impact on PDCCH and PDSCH, but the location of the reference symbols of PDCCH may need to be changed.
Implementation method 3
Please refer to fig. 14. Yet another processing method is to detect PDCCH on the latter part of the time domain position where PDCCH is detected if UE receives PDSCH in slot n, to detect PDCCH on slot n+1, for example starting to detect PDCCH from the previous q+1 (Q is a positive integer, configured by higher layer signaling or preset by protocol) OFDM symbol of slot n+1. In this way, even if the UE does not detect the PDCCH in the slot n+1, the reception of the PDSCH of the slot n is not affected, but the location of the reference symbol of the PDCCH may need to be changed.
Example III
The embodiment provides another method for receiving PDCCH by the UE.
Implementation of method 1
First, the UE determines that it is necessary to receive the PDCCH on slot n. Then, the UE determines a slot n-k that satisfies the following condition: (1) time slot n-k is closest to time slot n; (2) the UE received PDSCH on slot n-k. Finally, the UE detects PDCCH on BP with BP number p in slot n, p being the BP number of the UE receiving PDSCH on slot n-k.
Implementation method 2
First, the UE determines that it is necessary to receive the PDCCH on slot n. Then, the UE determines whether there is a slot n-k (k is a positive integer) before a slot n, and the slot n-k satisfies the following condition: (1) time slot n-k is closest to time slot n; (2) the UE received PDSCH on slot n-k. If the UE determines that there is no slot n-k, the UE detects the PDCCH on BP with BP sequence number p in slot n, p being determined by the UE receiving signaling (e.g., higher layer, MAC layer or physical layer signaling) of the base station. If the UE finds the slot n-k, the UE detects the PDCCH on BP with BP sequence number p in slot n, p being the BP sequence number of the PDSCH received by the UE on slot n-k.
Implementation method 3
The UE detects the received PDCCH on a BP configured by a high-layer signaling in the configured time slot. For example, the UE detects PDCCH on BP with sequence number m of one higher layer signaling configuration in a periodically distributed slot, such as the first slot of every 10 slots; in other slots, the BP of the UE detecting the received PDCCH may be dynamically changed, for example, the method described in implementing method 1 or 2 of embodiment three is used to determine the BP of the UE detecting the PDCCH in other slots.
Referring to fig. 15, a ue for downlink control channel reception according to the present disclosure includes:
the judging module is used for judging whether the PDSCH is received at the time domain position n;
and the receiving module is used for determining the frequency domain position of the bandwidth part BP of the PDCCH received at the time domain position n+1 according to the judging result of the judging module, and receiving the PDCCH at the BP of the frequency domain position.
The working processes of the judging module and the determining module correspond to steps 101 and 102 of the downlink control channel receiving method of the present disclosure, and are not described herein.
As can be seen from the above detailed description of the present disclosure, the present disclosure has at least the following advantageous technical effects compared to the prior art:
firstly, whether the PDSCH is needed to be received at the time domain position before the current time domain position of the received PDCCH is judged to determine the frequency domain position of the BP of the received PDCCH, so that the influence of the adjustment time interval of the conversion BP of the UE on the normal received data of the UE is greatly reduced or even eliminated, and the receiving performance of the UE and the throughput level of the received data are ensured.
Secondly, the BP position of the dynamically changed received PDCCH is set, the BP position of the received PDCCH is prevented from being different from the BP of the PDSCH received at the previous time domain position, the adjustment time interval required by the conversion of the BP by the UE is completely avoided, the integrity of received data is ensured, meanwhile, transmission resources are saved, and the communication efficiency of the system is improved.
Third, even when PDSCH is not received at the previous time domain position of PDCCH, a scheme is provided to reduce time delay and resource consumption required for UE to switch BP to a certain extent, and power consumption of UE is reduced to a certain extent.
Fourth, under the condition that BP conversion inevitably occurs, by setting the time domain position of the UE for receiving PDSCH or PDCCH, the received data is further ensured not to be affected by BP conversion adjustment time, and the reliability of the UE for receiving data is significantly increased.
In the several embodiments provided in the present disclosure, it should be understood that the disclosed systems, devices, and methods may be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown 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 may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present disclosure may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
Those of ordinary skill in the art will appreciate that all or part of the steps in the various methods of the above embodiments may be implemented by a program to instruct related hardware, the program may be stored in a computer readable storage medium, and the storage medium may include: read Only Memory (ROM), random access Memory (RAM, random Access Memory), magnetic or optical disk, and the like.
While the methods and apparatus provided by the present disclosure have been described in detail, those skilled in the art will appreciate that they may vary in specific implementations and applications based on the concepts of the embodiments of the disclosure, and in light of the foregoing, the present disclosure should not be construed as limiting.
Claims (10)
1. A method performed by a user equipment, UE, in a wireless communication system, comprising:
receiving information of a first bandwidth part of the one or more bandwidth parts through a first high layer signaling;
setting a bandwidth part for Physical Downlink Control Channel (PDCCH) monitoring and data reception related to a Physical Downlink Shared Channel (PDSCH) as the first bandwidth part;
in the case that downlink control information is received on the first bandwidth part and the downlink control information includes information of a second bandwidth part different from the first bandwidth part among the configured one or more bandwidth parts, the bandwidth part for PDCCH listening and data reception is set as the second bandwidth part.
2. The method of claim 1, wherein the one or more bandwidth portions are configured to a UE based on the first higher layer signaling.
3. The method as recited in claim 1, further comprising:
changing a bandwidth portion for PDCCH listening and data reception from the first bandwidth portion to a bandwidth portion configured by second higher layer signaling in the event that PDSCH is not received on the first bandwidth portion within a time interval; or,
and in case that the PDSCH is not received on the second bandwidth part within the time interval, changing the bandwidth part for PDCCH listening and data reception from the second bandwidth part to a bandwidth part configured by second higher layer signaling.
4. The method of claim 1, wherein the first bandwidth portion is used as the bandwidth portion for PDCCH listening and data reception until the downlink control information is received.
5. The method as recited in claim 1, further comprising: it is determined whether the UE receives the PDSCH within the time interval.
6. The method as recited in claim 1, further comprising:
judging whether the PDSCH is received in a first time slot;
determining a bandwidth part of the second time slot for PDCCH monitoring according to a result of judging whether the PDSCH is received in the first time slot; and
control information is received in a bandwidth portion for PDCCH listening.
7. The method of claim 6, wherein determining the bandwidth portion comprises:
if yes, determining the bandwidth part of the second time slot for PDCCH monitoring as the bandwidth part of the PDSCH received by the first time slot;
if the result of judging whether the PDSCH is received in the first time slot is negative, determining the bandwidth part of the second time slot for PDCCH monitoring according to whether the PDSCH is received in the third time slot before the first time slot.
8. The method as recited in claim 1, further comprising:
if a PDSCH is received on the second portion of bandwidth in a first slot, detection of a PDCCH is performed on the second portion of bandwidth in a second slot subsequent to the first slot.
9. A user equipment comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the method of any of claims 1-8 when executing the computer program.
10. A computer readable storage medium, characterized in that the computer readable storage medium has stored thereon a computer program which, when executed by a processor, implements the method of any of claims 1-8.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710312942.7A CN108811113B (en) | 2017-05-05 | 2017-05-05 | Method for receiving downlink control channel and user equipment |
| KR1020197035291A KR102498024B1 (en) | 2017-05-05 | 2018-05-04 | Method and apparatus for downlink control channel reception in wireless communication system |
| PCT/KR2018/005210 WO2018203718A1 (en) | 2017-05-05 | 2018-05-04 | Method and apparatus for receiving downlink control channel in wireless communication system |
| EP18794995.3A EP3636023B1 (en) | 2017-05-05 | 2018-05-04 | Method and apparatus for receiving downlink control channel in wireless communication system |
| EP21191735.6A EP3930402B1 (en) | 2017-05-05 | 2018-05-04 | Method and apparatus for receiving downlink control channel in wireless communication system |
| US15/972,667 US10986620B2 (en) | 2017-05-05 | 2018-05-07 | Method and apparatus for receiving downlink control channel in wireless communication system |
| US17/231,506 US11445495B2 (en) | 2017-05-05 | 2021-04-15 | Method and apparatus for receiving downlink control channel in wireless communication system |
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| WO2010094173A1 (en) * | 2009-02-18 | 2010-08-26 | 华为技术有限公司 | Method and equipment for transmitting physical uplink share channel |
| CN102378378A (en) * | 2011-11-01 | 2012-03-14 | 新邮通信设备有限公司 | Method for extending physical downlink control channels |
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| US10153812B2 (en) * | 2015-02-10 | 2018-12-11 | Qualcomm Incorporated | Techniques for supporting multiple bandwidth modes |
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| WO2010094173A1 (en) * | 2009-02-18 | 2010-08-26 | 华为技术有限公司 | Method and equipment for transmitting physical uplink share channel |
| CN102378378A (en) * | 2011-11-01 | 2012-03-14 | 新邮通信设备有限公司 | Method for extending physical downlink control channels |
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| " Flexible BW supports in NR";Samsung;《3GPP R2-1704501》;20170504;全文 * |
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