CN108811138B - Method and equipment for transmitting control information - Google Patents

Method and equipment for transmitting control information Download PDF

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Publication number
CN108811138B
CN108811138B CN201710454748.2A CN201710454748A CN108811138B CN 108811138 B CN108811138 B CN 108811138B CN 201710454748 A CN201710454748 A CN 201710454748A CN 108811138 B CN108811138 B CN 108811138B
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pucch
pucch resources
resources
uci
resource
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CN108811138A (en
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李迎阳
王轶
张世昌
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Samsung Electronics Co Ltd
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Samsung Electronics Co Ltd
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Priority to US16/494,944 priority Critical patent/US11122527B2/en
Priority to PCT/KR2018/003526 priority patent/WO2018174677A1/en
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Priority to US17/470,482 priority patent/US11917561B2/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055Physical resource allocation for ACK/NACK
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0057Physical resource allocation for CQI
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling
    • H04W72/1263Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1268Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/21Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network

Abstract

The application provides a method for transmitting control information, which comprises the following steps: the User Equipment (UE) detects a Physical Downlink Control Channel (PDCCH) on a configured control resource set (CORESET); the UE analyzes the detected PDCCH, correspondingly receives a physical downlink shared channel PDSCH, and determines physical uplink control channel PUCCH resources for feeding back uplink control information UCI; and the UE transmits feedback UCI and scheduled PUSCH on the determined PUCCH resource. The method of the application provides a method for controlling PDCCH blind detection, reduces the complexity of UE and improves the transmission performance of PDCCH, provides a method for allocating PUCCH resources, optimizes the transmission performance of uplink control information, and optimally supports the frequency hopping operation of an uplink data channel.

Description

Method and equipment for transmitting control information
Technical Field
The present application relates to wireless communication system technologies, and in particular, to a method and apparatus for transmitting control information.
Background
In a wireless communication system, downlink transmission refers to transmitting a signal from a base station to a user equipment UE. The downlink signals include data signals, control signals, and reference signals (pilots). Here, the base station transmits downlink data in a Physical Downlink Shared Channel (PDSCH) or transmits downlink control information in a downlink control channel. Uplink transmission refers to transmitting a signal from a user equipment to a base station. The uplink signals also include data signals, control signals and reference signals. Here, the UE transmits uplink data in a Physical Uplink Shared Channel (PUSCH) or transmits uplink control information in a Physical Uplink Control Channel (PUCCH). The base station may dynamically schedule PDSCH transmissions and PUSCH transmissions for the UE through a Physical Downlink Control Channel (PDCCH).
In the 3GPP LTE system, as shown in fig. 1, the length of each radio frame is 10ms, equally divided into 10 subframes. Each downlink subframe includes two slots, each slot containing 7 OFDM symbols for a general CP length. The granularity of the resource allocation is a physical resource block PRB, one PRB containing 12 consecutive subcarriers in frequency, corresponding in time to one slot. The Resource Element (RE) is the minimum unit of time-frequency resource, i.e. one subcarrier in frequency and one OFDM symbol in time.
In the LTE system, DCIs transmitted to different UEs or different in function are independently encoded and transmitted. In physical resource mapping of PDCCHs, control Channel Elements (CCEs) are used as units, that is, modulation symbols of one PDCCH may be mapped onto L CCEs, where L is equal to 1, 2, 4 or 8, and L is also referred to as an aggregation level of the PDCCH. In the LTE system, the UE is configured to detect PDCCHs in a plurality of possible locations, which is called a search space of the UE. The base station transmits PDCCH to the UE at a position in the search space configured for UE detection, and the UE obtains control information transmitted by the base station through blind detection of the search space configured for the base station. For downlink data transmission based on HARQ, after the UE detects the PDCCH and correspondingly receives the PDSCH, the corresponding HARQ-ACK information can be fed back on the PUCCH.
The 3GPP standards organization is standardizing new access network technologies (NR), which remain OFDM-based systems. The problem to be solved is that of efficiently supporting the transmission of uplink and downlink control channels in NR systems.
Disclosure of Invention
The application provides a method and equipment for distributing PUCCH resources, and provides a mechanism for improving the utilization rate of upper limit resources and reducing the bit overhead of downlink DCI.
In order to achieve the above purpose, the present application adopts the following technical scheme:
a method of transmitting control information, comprising:
the User Equipment (UE) detects a Physical Downlink Control Channel (PDCCH) on a configured control resource set (CORESET);
the UE analyzes the detected PDCCH, correspondingly receives a physical downlink shared channel PDSCH, and determines physical uplink control channel PUCCH resources for feeding back uplink control information UCI;
and the UE transmits feedback UCI and scheduled PUSCH on the determined PUCCH resource.
Preferably, the method comprises the steps of,
the method further comprises at least one of:
determining a starting point of the second PUCCH format mapped to the channel according to the end point of the channel of the mapping of the first PUCCH format;
from obtaining parameters by higher-layer signallingAccording to the OS number and +.>Get parameters->According to the parameters- >Determining a starting PRB mapped by a second PUCCH format;
according to the number of OS carrying PUCCH resourcesDetermining PUCCH resource offset
Preferably, the determining the PUCCH resource of the feedback UCI includes one of:
receiving configuration information of N PUCCH resources configured by high-level signaling, then adjusting the N PUCCH resources configured according to the number of OFDM Symbol (OS) used for PUCCH, and determining one of the N PUCCH resources as a PUCCH resource for feeding back UCI according to HARQ-ACK Resource Indication (ARI);
respectively receiving N PUCCH resources configured by high-level signaling under different conditions of the number of the OSs carrying the PUCCH resources, obtaining corresponding N PUCCH resources according to the number of the OSs carrying the PUCCH, and obtaining one of the N PUCCH resources as a PUCCH resource for feeding back UCI according to ARI;
receiving a plurality of groups of PUCCH resources configured by a high-level signaling, wherein each group of PUCCH resources comprises N PUCCH resources, and one PUCCH resource in a group of N PUCCH resources is obtained according to ARI and is used as a PUCCH resource for feeding back UCI;
and receiving a plurality of groups of PUCCH resources configured by the high-level signaling, wherein each group of PUCCH resources comprises N PUCCH resources, and combining the number of the OSs carrying the PUCCH and the ARI to obtain one PUCCH resource in the N PUCCH resources as a PUCCH resource for feeding back the UCI.
Preferably, when there are a plurality of PUCCH formats, PUCCH resources are determined separately for each PUCCH format.
Preferably, when there are a plurality of PUCCH formats, determining the employed PUCCH format according to the UCI bit number and the OS number for PUCCH; or determining the adopted PUCCH format according to UCI bit number and ARI; or determining the adopted PUCCH format according to UCI bit number, OS number used for bearing the PUCCH and ARI.
Preferably, the determining the PUCCH resource of the feedback UCI includes one of:
receiving configuration information of a group of PUCCH resources configured by high-level signaling, then adjusting the configured group of PUCCH resources according to the number of OFDM Symbols (OS) used for PUCCH, and determining the adjusted group of PUCCH resources as PUCCH resources for feeding back UCI;
and respectively receiving a group of PUCCH resources configured by the high-level signaling under different conditions of the number of the OSs carrying the PUCCH resources, and determining the group of PUCCH resources as the PUCCH resources for feeding back UCI according to the number of the OSs carrying the PUCCH.
Preferably, when there are a plurality of PUCCH formats, one PUCCH resource to be employed is determined according to the UCI bit number and the OS number for PUCCH, or the PUCCH format to be employed and one PUCCH resource are determined according to the UCI bit number and the OS number for PUCCH.
Preferably, the number of physical resource blocks PRB that are not available for frequency hopping operation of the uplink data channel varies with the number of OS carrying PUCCH resources.
Preferably, the number of PRBs unavailable for frequency hopping operation of the uplink data channel is,
a value of the higher layer signaling configuration;
or, a value configured by the high-level signaling is adjusted according to the number of the OSs carrying the PUCCH resources;
or, according to different situations of the number of the OSs carrying the PUCCH resources, respectively using the values configured by the high-layer signaling.
Preferably, the configured CORESET includes:
CORESET respectively configured by the downlink control information DCI format is distinguished;
or, further configuring the DCI format of the bearer for one configured CORESET.
Preferably, CORESET carrying the regressive DCI format is thinner than CORESET carrying the transmission mode related DCI format.
Preferably, the UE detecting the PDCCH includes:
for one timing position, adjusting the PDCCH blind detection times to enable the total blind detection times to be equal to or approximate to the allowed maximum blind detection times;
alternatively, the blind detection times are adjusted so that the total blind detection times are equal to or close to the allowed maximum blind detection times only when the PDCCH total blind detection times at one timing position exceeds the allowed maximum blind detection times.
Alternatively, the blind detection times are adjusted so that the total blind detection times are equal to or close to the allowed maximum blind detection times only when the total blind detection times at one timing position exceeds the allowed maximum blind detection times.
Preferably, the adjusting the blind detection times includes one of the following ways: the processing is combined for all the configured CCs, respectively processed for each CC and combined for each group of CORESET.
Preferably, in the PDCCH, the scheduling carrier and BWP are indicated with one joint field;
alternatively, in the PDCCH, the scheduling carrier, BWP and time unit TU are indicated with one joint field.
Preferably, when the determined PUCCH resource transmits feedback UCI and transmits scheduled PUSCH, power control is performed on PUCCH and/or PUSCH, where parameters of power control are configured in one of the following manners:
respectively configuring power control parameters for each BWP;
respectively configuring power control parameters for each carrier wave, wherein each BWP on each carrier wave adopts the same configuration power control parameters;
the power control parameters are respectively configured for each group of BWP.
The device for transmitting control information comprises a PDCCH detection and analysis module, a PDSCH receiving module, a PUCCH generating module and a receiving and transmitting module, wherein:
The PDCCH detection and analysis module is used for detecting DCI of the scheduling PDSCH on the configured control resource set by the UE and analyzing the detected DCI;
a PDSCH receiving module configured to receive a PDSCH according to the detected DCI;
the PUCCH generation module is used for generating a PUCCH signal to be fed back;
and the transceiver module is used for receiving the downlink signal from the base station and transmitting the PUCCH signal.
The method of the invention provides a method for distributing PUCCH resources, improves the utilization rate of the upper limit resources, provides a method for indicating the PUCCH resources in DCI, and reduces the bit cost of the DCI.
Drawings
Fig. 1 is a frame structure of an LTE system;
FIG. 2 is a flow chart of the present invention;
fig. 3 is a schematic diagram of resource allocation for two PUCCH formats;
fig. 4 is a schematic diagram of an uplink data channel frequency hopping operation according to the present invention;
FIG. 5 is a schematic diagram of the present invention for configuring DCI format and CORESET;
fig. 6 is a diagram of the apparatus of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below by referring to the accompanying drawings and examples.
A flow chart of the present invention is shown in fig. 2.
Step 201: the UE detects the PDCCH on the configured set of control resources.
The time resources may be divided by a certain Time Unit (TU), which may refer to a subframe (subframe), a slot (slot), or a mini-slot. One slot may be divided into a plurality of mini slots, one mini slot containing one or more OFDM Symbols (OS). Within one downlink TU, a base station may configure one or more control resource sets (CORESETs) for a UE. One PDCCH is mapped onto one CORESET.
Step 202: the UE analyzes the detected PDCCH, correspondingly receives the PDSCH, and determines PUCCH resources for feeding back the HARQ-ACK information.
For downlink data transmission based on HARQ, after receiving data transmitted by a base station, the UE correspondingly needs to feed back HARQ-ACK information and correspondingly needs to determine PUCCH resources for feeding back the HARQ-ACK information.
Step 203: and the UE transmits feedback HARQ-ACK information on the determined PUCCH resource and transmits the scheduled PUSCH.
Here, when the uplink data channel supports a frequency hopping operation, PRBs for data channel frequency hopping may be to avoid collision with resources for PUCCH transmission as much as possible
The method for processing uplink and downlink control channels according to the present invention will be described with reference to the embodiments.
Example 1
The UE may transmit various types of Uplink Control Information (UCI) in an uplink direction, for example, periodic CSI (P-CSI), scheduling Request (SR), and HARQ-ACK information. PUCCH formats for carrying different types of UCI are generally different. The PUCCH resource may be defined on part or all of the uplink OS within one TU, or may be defined on a plurality of TUs, thereby increasing coverage. The number of OFDM Symbols (OS) available to carry PUCCH resources within one TU may vary depending on the uplink and downlink structure of the TU. For example, note that one TU includes 7 OSs, and one TU may be entirely used for uplink transmission, so that the OS number of PUCCH resources is 7; one TU may be to contain one downlink region for transmitting PDCCH and the remaining part for uplink transmission, assuming that 2 OSs are used to carry PDCCH, the OS number of PUCCH resources is 5. In the case of multiplexing a plurality of PUCCH channels on a unit time-frequency resource, for example, one PRB of one TU, by Code Division Multiplexing (CDM), when the OS number of PUCCH resources in one TU changes, the number of PUCCH channels that can be multiplexed on the unit time-frequency resource may also change.
For one PUCCH format, the base station determines which PUCCH resources within the PRB are actually allocated by the base station implementation, assuming that PUCCH resources are defined on all PRBs that can be used for PUCCH transmission. The number of PUCCH resources multiplexed in one unit time-frequency resource is A, PRB which can be used for PUCCH transmission can divide B units time-frequency resources, the total number of the supported PUCCH resources is A multiplied by B, and the index range is the index rangeFor example, in the LTE system, for PUCCH format 3, 5 channels may be multiplexed within one PRB, and then the index of PUCCH format 3 resource may be from 0 to 549 corresponding to a maximum bandwidth of 110 PRBs. According to the above analysis, when the number of OS used for PUCCH transmission in one TU varies, the number of PUCCH channels that can be multiplexed in the above unit time-frequency resource may also vary, for example, from a to a, and the total number of PUCCH resources that can be supported at this time correspondingly becomes a×b, whose index range ∈>The number of PUCCH resources multiplexed in one of the above units of time-frequency resources may be predefined for different values of the number of OS applied to PUCCH transmission, may be calculated from the number of OS used for PUCCH transmission, or may be configured with higher layer signaling. For one UE, the PUCCH resource index allocated thereto is noted as n, and the allocated index n may not change with the number of OS used for PUCCH transmission. With this approach, there is always a PUCCH resource allocated to this UE as long as n.ltoreq.min (A×B-1 ) is satisfied. As long as the base station schedule ensures that the PUCCH resource index n allocated by each UE does not collide, the allocated PUCCH resources still do not collide when the number of OS used for PUCCH transmission varies.
For one PUCCH format, when the OS number of the PUCCH resource in one TU changes, the number of PUCCH channels that can be multiplexed in the unit time-frequency resource may also change. The ratio of the change in the number of the multiplexed PUCCH channels may be different for different PUCCH formats. As shown in fig. 3 (a), it is assumed that b PRBs are allocated for PUCCH format 1 channels starting from PRB index 0, and several PUCCH format 2 channels are allocated next from PRB index b. Since the resources of the two PUCCH formats are allocated consecutive PRBs, the PUCCH regions are consecutive and the remaining resources are used for data transmission. As shown in fig. 3 (b), when the number of PUCCH resources in one TU changes, assuming that the ratio of the changes in the number of PUCCH resources multiplexed in two PUCCH formats is the same, for example, halving, the coefficient of increasing the number of occupied PRBs is 2 in order to carry the same number of PUCCH resources. I.e. 2b PRBs need to be allocated for PUCCH format 1 and starting from PRB index 2b for PUCCH format 2. Since the resources of the two PUCCH formats are still allocated consecutive PRBs, the PUCCH regions are consecutive and the remaining resources are used for data transmission. As shown in fig. 3 (c), when the number of OS of PUCCH resources within one TU is changed, assuming that the ratio of change in the number of PUCCH resources multiplexed within one PRB is different, for example, 2/3 and 1/3, the coefficient by which the number of PRBs occupied by PUCCH format 1 increases is 1.5 and the coefficient by which the number of PRBs occupied by PUCCH format 2 increases is 3 in order to carry the same number of PUCCH resources. The number of PRBs occupied by PUCCH format 1 is about 1.5b, while starting from PRB index 3b for PUCCH format 2, there is a spacing of about 1.5b PRBs between the two PUCCH formats. The partially spaced PRBs are discontinuous from other PRBs used for the data channel, thereby affecting the flexibility of resource allocation.
According to the analysis of fig. 3, when the OS number of PUCCH resources within one TU is changed, assuming that the ratio of the change in the number of PUCCH resources multiplexed within one PRB is different for two PUCCH formats, if the time-frequency resources to which the PUCCH resources are mapped are independently determined according to each PUCCH format, fragmentation of the data channel may be caused.
In order to avoid the above, when the number of OSs of the PUCCH resource within one TU varies, and it is necessary to adjust the time-frequency resource to which the PUCCH resource is mapped, the starting point of mapping to the channel of the second PUCCH format is determined according to the end point of the channel of the mapping of the first PUCCH format. For example, it is noted that the last PUCCH resource of the first PUCCH format is mapped to PRB x, and PUCCH resources of the second PUCCH format should be mapped from PRB x or x+1, thereby avoiding fragmentation. The PUCCH resource with index 0 of the second PUCCH format may be determined according to the above starting point.
Alternatively, the parameters may be configured with higher layer signalingWhen the OS number of PUCCH resources in one TU is changed, according to the OS number L and the parameter +.>Get parameters->Parameter->The ending PRB of the first PUCCH format mapping may be indicated, and the starting PRB of the second PUCCH format mapping may be a next PRB of the ending PRB; alternatively, the starting PRB of the second PUCCH format mapping may be indicated. The initial PRB includes a PUCC with index 0 of the second PUCCH format H resources. For example, according to the OS number L for PUCCH of one TU, the reference value of the OS number for PUCCH resources is L 0 The rate of change of the number of PUCCH resources multiplexed within one PRB of the first PUCCH format is found to be p=f (L, L 0 ) For example, p=l/L 0 Alternatively, the ratio p is calculated based on the number of PUCCH resources multiplexed on one of the unit time-frequency resources corresponding to the number of OSs of the PUCCH. Further, according to the ratio p and the parameter +.>Get parameters->For example, a->Or->
Alternatively, for one PUCCH format, an offset to configure PUCCH resource index may be Depending on the number of OS carrying one PUCCH resource. For one PUCCH format, the OS number of each different bearer PUCCH resource can be respectively configured with +>Alternatively, the OS numbers of PUCCH resources may be grouped, for example, each group contains some similar OS numbers, and +.>Assuming PUCCH resource index n configured by higher layer signaling, PUCCH resource index of actually configured UE within one TU is +.>It is assumed that the ARI-based mechanism indicates PUCCH resources, N PUCCH resources are configured with higher layer signaling, and one of the N PUCCH resources is indicated with ARI. Let the above N PUCCH resources be N k K=0, 1,..n-1, the PUCCH resource index of the actually configured UE within one TU is +. >With this method, PUCCH resource index 0 may be fixedly mapped to one PRB, for example, PRB index 0.
Example two
For downlink data transmission based on HARQ, after receiving downlink data, the UE may feed back HARQ-ACK information through PUCCH resources. In addition, the UE also needs to report periodic CSI (P-CSI) information to the base station through PUCCH resources. The PUCCH resource may be defined on part or all of the uplink OS within one TU, or may be defined on a plurality of TUs, thereby increasing coverage. The number of OFDM Symbols (OS) available to carry PUCCH resources within one TU may vary depending on the uplink and downlink structure of the TU. For example, note that one TU includes 7 OSs, and one TU may be entirely used for uplink transmission, so that the OS number of PUCCH resources is 7; one TU may be to contain one downlink region for transmitting PDCCH and the remaining part for uplink transmission, assuming that 2 OSs are used to carry PDCCH, the OS number of PUCCH resources is 5. When the number of the OSs of the PUCCH resources in one TU is reduced under the condition of bearing a certain uplink control information UCI payload, the number of PRBs occupied by the PUCCH resources can be correspondingly increased, so that the transmission performance of the PUCCH resources is ensured.
For each PUCCH resource, PRB resources occupied by the PUCCH, for example, a starting PRB occupied by the PUCCH resource and the number of continuously occupied PRBs may be configured, and other parameters of the PUCCH resource may be configured. Alternatively, assuming that the number of PRBs occupied by one PUCCH resource is fixed, for example, 1 PRB, when the number of OS for carrying PUCCH resources is changed, the total number of PRBs for carrying PUCCH resources may be changed accordingly according to the change in the number of multiplexed PUCCH resources within one PRB. It is assumed that there are multiple PUCCH formats, which can carry different numbers of payload bits. The plurality of PUCCH formats may include PUCCHs mapped to a relatively small number of OSs, for example, 1 or 2 OSs, which are called short PUCCHs; and PUCCHs mapped to a comparatively large number of OSs, for example, 4 or more OSs, which are called long PUCCHs. Alternatively, the plurality of PUCCH formats may refer to only different formats of a long PUCCH. The number of OSs in the plurality of PUCCH formats may be variable, or OS data in one portion of PUCCH formats may be variable, and OS data in another portion of PUCCH formats may be fixed. For example, PUCCH format 3 in LTE carries 22 bits or less, and PUCCH format 4 may carry more bits, so that PUCCH format 3 or PUCCH format 4 is selected for transmitting UCI according to the number of bits of UCI.
For HARQ-based downlink data transmission, PUCCH resources may be indicated by an ARI-based mechanism. That is, a set of alternative PUCCH resources is configured by a higher layer, and one PUCCH resource of the set is dynamically indicated in the PDCCH by an ARI. The following describes a method of configuring PUCCH resources indicated by ARI according to the present invention.
The first method for configuring PUCCH resources is to configure N PUCCH resources with higher layer signaling regardless of the number of OS carrying the PUCCH resources, and then adjust the configured N PUCCH resources according to the number of OS used for PUCCH. Starting PRB index of configured nth PUCCH resource is S n The number of occupied PRBs is R n N=0, 1,..n-1, with the number of OSs currently used for PUCCH resources being L, the nth PUCCH resource configured as described above may be adjusted from the starting PRB index S n Start to continuously occupy R' n =f(R n ,L,L 0 ) PRBs, L 0 Is the reference OS number. For example, suppose that PUCCH resources are mapped into one TU, and that one TU contains 7 OSs, L 0 It may be that it is equal to 7,or->When there are a plurality of PUCCH formats,PUCCH resources may be configured for each PUCCH format. When the configured N PUCCH resources are adjusted according to the number of OS used for PUCCH, the number of payload bits that the N PUCCH resources can carry correspondingly changes, and PUCCH formats suitable for UCI transmission may also change. That is, the PUCCH format to be employed may be determined according to the UCI bit number and the OS number for PUCCH, and thus the available N PUCCH resources may be determined. The ARI indicates one of the N PUCCH resources.
The second method for configuring the PUCCH resources is to configure a group of PUCCH resources with higher layer signaling according to different conditions of the number of OS carrying the PUCCH resources, where each group of PUCCH resources includes N PUCCH resources. The above-described one set of PUCCH resources may be respectively allocated to the OS numbers of each of the different PUCCH resources, or may be grouped, for example, each group contains a plurality of similar OS numbers, and the above-described one set of PUCCH resources may be respectively allocated to each group of OS numbers. When there are a plurality of PUCCH formats, PUCCH resources may be configured for each PUCCH format. The number of payload bits that can be carried by the PUCCH resource of each PUCCH format is determined according to the number of OS used to carry the PUCCH, and the PUCCH format suitable for UCI transmission may also be changed. That is, a PUCCH format to be employed may be determined according to the UCI bit number and the OS number for PUCCH. And obtaining a corresponding group of PUCCH resources according to the number of the OSs carrying the PUCCH currently, so as to indicate one of the N PUCCH resources of the group by ARI.
The third method for configuring PUCCH resources is to configure multiple groups of PUCCH resources with higher layer signaling, where each group of PUCCH resources includes N PUCCH resources. For example, each set of PUCCH resources may be one OS number or a part of the OS number corresponding to the bearer PUCCH resource. The ARI indicates a set of PUCCH resources that need to be employed. With this approach, the ARI actually carries information about the number of OS carrying PUCCH resources. For example, assuming that the structure of one TU is dynamically indicated by a common DCI, when the UE generates UCI and needs to process, the UE has not received the common DCI of the TU where the PUCCH resource is located, and may not know the number of OSs of the TU that are available for PUCCH transmission. By adopting the method, the UE can know the number of the OSs carrying the PUCCH resources through the ARI, so that UCI processing is started.
The number of OS carrying the PUCCH resource obtained by ARI may be different from the information indicated by the common DCI of the TU where the PUCCH resource is located. In particular, the ARI may be a range indicating only the number of OS for carrying PUCCH resources. The UE may process UCI according to the number of OS indicated by the ARI. The number of OS actually available for carrying PUCCH resources may be obtained from information indicated by the common DCI. The UE may transmit the PUCCH according to the number of OS actually available to carry the PUCCH resource. Or, when the number of OSs actually available for carrying PUCCH resources is equal to or greater than the number of OSs indicated by ARI, the UE may transmit PUCCH only according to the number of OSs indicated by ARI; otherwise, the UE transmits the PUCCH according to the number of OS actually available to carry the PUCCH resource.
When there are a plurality of PUCCH formats, PUCCH resources may be configured for each PUCCH format. The number of OS used to carry PUCCH is determined according to ARI, and further the number of payload bits that can be carried for PUCCH resources of each PUCCH format is determined, and PUCCH formats suitable for UCI transmission may also be changed. That is, the PUCCH format to be employed may be determined according to the UCI bit number and ARI. The ARI indicates a set of PUCCH resources and further indicates one PUCCH resource of the set of PUCCHs.
In a third method of configuring PUCCH resources, the ARI indicates both a group of PUCCH resources and one of N resources within the group. Alternatively, a set of PUCCH resources to be used may be indicated in DCI by a field that actually carries information about the number of OS carrying the PUCCH resources; and uses another and indicates one of the N resources within one PUCCH group.
The fourth method for configuring PUCCH resources is to configure multiple groups of PUCCH resources with higher layer signaling, where each group of PUCCH resources includes N PUCCH resources, and the number of OS and ARI indication information of the jointly carried PUCCH resources can determine which group of PUCCH resources to use. For one case of the number of OS carrying PUCCH resources, the one case may be one or a part of the number of OS, and the set of PUCCH resources is further determined by ARI. When there are a plurality of PUCCH formats, PUCCH resources may be configured for each PUCCH format. The number of payload bits that can be carried by the PUCCH resources of each PUCCH format is determined according to the number of OS and ARI used to carry the PUCCH, and the PUCCH format suitable for UCI transmission may also be changed. That is, the PUCCH format to be employed may be determined according to the UCI bit number, the OS number for carrying the PUCCH, and the ARI. The number of OS and ARI of the joint bearer PUCCH may indicate a set of PUCCH resources and further indicate one PUCCH resource of the set of PUCCHs.
For P-CSI, a set of alternative PUCCH resources may be configured by a higher layer, where the set may include one or more PUCCH resources, and the PUCCH resources may belong to the same or multiple PUCCH formats, so that an appropriate PUCCH resource may be selected according to the current UCI bit number in combination with other information.
The first method for configuring PUCCH resources is to configure a set of PUCCH resources with higher layer signaling, which may include one or more PUCCH resources, which may be the same or different PUCCH formats, regardless of the number of OS carrying the PUCCH resources, and then adjust the configured set of PUCCH resources according to the number of OS used for PUCCH. Starting PRB index of configured nth PUCCH resource is S n The number of occupied PRBs is R n N=0, 1,.., N-1, N is the number of PUCCH resources of the above-described group of PUCCH resources, and the N-th PUCCH resource configured as described above may be adjusted from the starting PRB index S, with the number of OS currently used for the PUCCH resources being L n Start to continuously occupy R' n =f(R n ,L,L 0 ) PRBs, L 0 Is the reference OS number. For example, suppose that PUCCH resources are mapped into one TU, and that one TU contains 7 OSs, L 0 It may be that it is equal to 7,or alternativelyWhen the set of PUCCH resources configured as described above is adjusted according to the number of OS used for PUCCH, the number of payload bits that the set of PUCCH resources can carry varies accordingly. When the above-described group of PUCCH resources belong to the same PUCCH format, one PUCCH resource to be employed may be determined according to the UCI bit number and the OS number for PUCCH. When (when) When the group of PUCCH resources may belong to a plurality of PUCCH formats, PUCCH formats suitable for UCI transmission may also be changed, that is, a PUCCH format and one PUCCH resource to be adopted may be determined according to the UCI bit number and the OS number for PUCCH.
The second method for configuring PUCCH resources is to configure a group of PUCCH resources with higher layer signaling according to different OS numbers carrying PUCCH resources, where the group of PUCCH resources may include one or more PUCCH resources, and may be in the same or different PUCCH formats. The PUCCH resources may be configured as a group of the OS numbers of each different PUCCH resource, or may be grouped as the OS numbers of the PUCCH resources, for example, each group contains some similar OS numbers, and a group of the PUCCH resources may be configured as a group of the OS numbers for each group. A set of PUCCH resources is determined according to the number of OS for carrying PUCCH, and when the set of PUCCH resources belong to the same PUCCH format, one PUCCH resource to be employed may be determined according to the number of UCI bits and the number of OS for PUCCH. When a set of PUCCH resources is determined according to the number of OSs for carrying PUCCH, the PUCCH format suitable for UCI transmission may also be changed when the set of PUCCH resources may belong to a plurality of PUCCH formats, that is, the PUCCH format and one PUCCH resource to be adopted may be determined according to the number of UCI bits and the number of OSs for PUCCH.
Example III
According to the slot of the first embodiment, the number of OFDM Symbols (OS) available for carrying PUCCH within one TU may be varied depending on the uplink and downlink structure of the TU. In the case of carrying a certain UCI payload, when the number of the PUCCH OS in one TU decreases, the number of PRBs occupied by the PUCCH may be increased in order to achieve the same PUCCH transmission performance. That is, the number of PRBs actually used to carry UCI within one TU may vary with the number of OS used for PUCCH resources within this TU.
For uplink data transmission, frequency diversity gain may be obtained by supporting frequency hopping. In general, the larger the spacing of PRBs occupied by an uplink channel, the larger the frequency diversity gain. When a part of resources of the uplink bandwidth is allocated for PUCCH, for example, PRB resources at both ends of the uplink bandwidth are used to carry PUCCH, uplink dataThe frequency hopping operation of the channel needs to avoid occupying PRBs allocated for PUCCH as much as possible. According to the above analysis, the number of PRBs for PUCCH resources varies with the number of OS for PUCCH resources within this TU, and in order to avoid collision with the frequency hopping operation of the uplink data channel, the number of PRBs unavailable for the frequency hopping operation of the uplink data channel varies with the number of OS for PUCCH resources within this TU. As shown in fig. 4, according to the variation of the OS number of the PUCCH in one TU, the number of PRBs used for the PUCCH is varied, and accordingly, the number of PRGs which are not available for the frequency hopping operation of the uplink data channel And changes 401-403 accordingly. The present invention does not limit whether the number of PRBs for PUCCH resources is equal to the number of PRBs not available for frequency hopping operation of an uplink data channel.
In one TU, the number of PRBs unavailable for frequency hopping operation of an uplink data channel is recorded asA value that may be configured for higher layer signaling is independent of the number of TUs' OS and the number of PRBs for PUCCH resources. Or (F)>A value that can be configured by higher layer signaling, for a TU, adjusting +.>ObtainingRecording the OS number of one TU carrying PUCCH resource as L,>L 0 is the reference OS number. For example, suppose that PUCCH resources are mapped into one TU, and that one TU contains 7 OSs, L 0 Can be equal to 7 +>Or->Alternatively, different values of the number of OSs carrying PUCCH resources may be configured with higher layer signaling to correspond to ++>Alternatively, the OS numbers carrying PUCCH resources may be grouped, for example, each group contains some similar OS numbers, and corresponding +_s are respectively configured for each group of OS numbers>
Example IV
Both the base station and the UE may be capable of supporting broadband transmission capabilities. For example, the bandwidth of one carrier may reach 100MHz. Alternatively, the bandwidth capabilities of the base station and the UE may be different. For example, the base station supports a wideband 100MHz bandwidth to operate as one carrier, whereas the UE has only 20MHz of single carrier capability, but can get 100MHz by aggregating 5 carriers. In order to support the case where the UE bandwidth capability is relatively low, 3GPP introduced the concept of bandwidth part (BWP). For example, a carrier with a bandwidth of 100MHz may be divided into 5 BWP with a bandwidth of 20MHz, so that each BWP may carry UEs with relatively low bandwidth capabilities. In general, by configuring BWP, one UE may operate only on one or more sub-bands of the entire carrier, and the UE may be a UE with small bandwidth capability or may include a UE with large bandwidth capability.
On one carrier, when a plurality of BWP is configured for the UE, it may be a BWP scheduled in the PDCCH. In addition, when a plurality of carriers are configured for the UE, a scheduled carrier may be indicated in the PDCCH. In general, it is assumed that a UE is configured with multiple carriers and one or more CWP is configured on each carrier, it may be that a scheduled carrier and a scheduled BWP are indicated in the PDCCH. In the DCI format, the information indicating the carrier and the information indicating the BWP may be separate domains or may be one combined domain indicating the carrier and the BWP. The carrier and BWP corresponding to each codeword of the above-mentioned joint domain may be configured with higher layer signaling. With this approach, the overhead of indicating carriers and BWP can be reduced as much as possible.
The PDCCH transmitted within one TU may also be scheduling data transmissions within one or more TUs. In the DCI format, the information indicating TU and the information indicating BWP may be separate domains or may be one combined domain indicating TU and BWP. The TU and BWP corresponding to each codeword of the above-mentioned joint domain may be configured with higher layer signaling. With this approach, the overhead of indicating TU and BWP can be reduced as much as possible. Further, in the DCI format, the information indicating the carrier, the information indicating the TU and the information indicating the BWP may be separate domains, or may be one combined domain indicating the carrier, the TU and the BWP. The carriers, TUs, and BWP corresponding to each codeword of the above-mentioned joint domain may be configured with higher layer signaling. With this approach, the overhead of indicating carriers, TUs and BWP can be reduced as much as possible.
Example five
The base station may configure one or more sets of control resources (CORESET) for carrying the PDCCH. One of the CORESETs corresponds to a set of time-frequency resources. For example, frequency resources are allocated with PRB granularity and time resources are allocated with TU granularity, which may refer to a subframe, a slot, or a mini-slot. One PDCCH is mapped onto one CORESET. One CORESET may typically carry multiple PDCCH candidates with the same or different aggregation levels. To reduce the number of blind detections, the UE may detect only a portion of the PDCCH candidates of one CORESET.
The UE generally detects two DCI formats, i.e., a regression DCI format, during data transmission, for enhancing DCI transmission reliability; and a transmission mode related DCI format for matching channel characteristics using a certain transmission mode to thereby improve downlink transmission performance. For one UE, to reduce the blind detection overhead, a search space for the UE to detect PDCCH may be defined. The configuration of the search space comprises the step of respectively configuring the number of the candidate PDCCHs corresponding to each CORESET. Alternatively, the configuration of the search space includes the number of candidate PDCCHs corresponding to each possible aggregation level. Alternatively, the configuration of the search space may further include allocating a number of candidate PDCCHs corresponding to each possible aggregation level to each different DCI format.
For one UE, the core may be configured separately for DCI formats. That is, for one DCI format or a portion of DCI formats, one or more CORESETs carrying the DCI formats may be configured. For a configured CORESET, the number of blind detections for each aggregation level of the DCI format on this CORESET may be further configured. Alternatively, the number of blind detections for each aggregation level of a DCI format on a CORESET is predefined, e.g. the number of blind detections for each aggregation level of a DCI format is predefined according to the total number of time-frequency resources of the CORESET. The above-described multiple CORESETs configured for different DCI formats may be overlapping or partially overlapping, thereby reducing the overhead of channel estimation and demodulation for the UE. In particular, the COREST for one DCI format may be a subset of the CORESET for another DCI format.
Alternatively, for a UE, for a configured CORESET, the DCI format that can be carried by the CORESET is further configured. One core is used only to carry one DCI format, a portion of the DCI formats, or all DCI formats of this UE. The DCI format carried above may be blind detection times further configured for each aggregation level. Alternatively, the number of blind detections for each aggregation level of a DCI format on a CORESET is predefined, e.g. the number of blind detections for each aggregation level of a DCI format is predefined according to the total number of time-frequency resources of the CORESET. The above configuration carries multiple CORESETs of different DCI formats may be overlapping or partially overlapping, thereby reducing the overhead of channel estimation and demodulation for the UE. In particular, one COREST may be a subset of another CORESET.
By adopting the method, the CORESET carrying the regression DCI format can be thinner than the CORESET carrying the transmission mode related DCI format, for example, a subset, so that blind detection overhead is reduced on the premise that the regression DCI format can still be transmitted. Alternatively, the reduced blind detection capability of detecting the regression DCI format may be used to detect more transmission mode related DCI formats, improving the flexibility of the base station to allocate PDCCHs carrying the transmission mode related DCI formats. As shown in fig. 5, assuming that two CORESETs are configured for the UE, a CORESET 1 may be used to carry the transmission mode related DCI format, and CORESET 2 may be used to carry the regression DCI format; alternatively, CORESET 1 carries the regressive DCI format and the transmission mode related DCI format, but CORESET 2 carries only the transmission mode related DCI format.
Depending on the base station's CORESET configuration, the CORESET configuration and number of base station configured UEs may vary at one timing location, e.g., within one slot, and accordingly the number of times the UE needs to perform blind detection of PDCCH may also vary. With the above method of the present invention, the number of blind detections of CORESET and/or DCI formats at one timing location may be configured or predefined with higher layer signaling, irrespective of the effects of the above-described variations in CORESET at different timing locations. Alternatively, for a timing position, the number of blind detections in each CORESET and/or DCI format in the timing position may be adjusted such that the total number of blind detections is equal to or close to the allowed maximum number of blind detections. Alternatively, the blind detection times are adjusted so that the total blind detection times are equal to or close to the allowed maximum blind detection times only when the total blind detection times of the respective CORESET and/or DCI formats at one timing position exceeds the allowed maximum blind detection times. The above-described adjustment of the number of blind detections of individual CORESET and/or DCI formats may be a UE-specific search space (USS) only treatment.
For USS, it may be to determine the maximum number of blind detections for all CORESET for each CC. Accordingly, the above operation of adjusting the blind detection times of each CORESET and/or DCI format may be joint processing of all CORESETs of each CC, so that the total blind detection times are equal to or close to the maximum blind detection times; or, only when the total blind detection times exceeds the maximum blind detection times, the blind detection times are adjusted so that the total blind detection times are equal to or close to the maximum blind detection times. The maximum blind detection times can be configured by high-layer signaling, predefined, dynamically indicated by a public PDCCH, or calculated according to some other parameters. For example, for USS, assuming that the reference blind detection number of each CC is N, the maximum blind detection number of C CCs is n·c; alternatively, assuming that the total number of BWP configured on C CCs is B and that the reference blind detection number of each BWP is M, the maximum blind detection number is m·b. The above parameters N and/or M may be high-level signaling configured or predefined.
Alternatively, the maximum blind detection number may be determined for each CC for USS. Accordingly, the above operation of adjusting the blind detection times of each CORESET and/or DCI format may be performed separately for each CC. For each CC, making the total blind detection times of the CC equal to or close to the maximum blind detection times; alternatively, the blind detection times are adjusted so that the total blind detection times are equal to or close to the maximum blind detection times only when the total blind detection times of this CC exceeds the maximum blind detection times. The maximum blind detection times can be configured by high-layer signaling, predefined, dynamically indicated by a public PDCCH, or calculated according to some other parameters. For example, for USS, assuming that the reference blind detection number of each CORESET is N, and that C CORESETs are configured on one CC, the maximum blind detection number of this CC is n·c; alternatively, on one CC, assuming that B BWPs are configured and assuming that the reference blind detection number of each BWP is M, the maximum blind detection number of this CC is m·b. The above parameters N and/or M may be high-level signaling configured or predefined.
Alternatively, for USS, or for a set of CORESETs, the maximum number of blind detections for this set of CORESETs is determined. Correspondingly, the operation of adjusting the blind detection times of each CORESET and/or DCI format may be to perform a set of CORESETs, so that the total blind detection times of the set of CORESETs is equal to or close to the maximum blind detection times; the blind detection times are adjusted so that the total blind detection times are equal to or close to the maximum blind detection times only when the total blind detection times of the set of CORESET exceeds the maximum blind detection times. The maximum blind detection times can be configured by high-layer signaling, predefined, dynamically indicated by a public PDCCH, or calculated according to some other parameters. For example, for USS, assuming that the reference blind detection number of each CORESET is N, and noting that the above group includes C CORESETs, the maximum blind detection number of the CORESETs is n·c; alternatively, assuming that the set of CORESETs is used to schedule B BWP and assuming that the reference blind detection number of each BWP is M, the maximum blind detection number of this CC is m·b. The above parameters N and/or M may be high-level signaling configured or predefined.
When the number of blind detections in a timing position needs to be adjusted, the number of blind detections of one or more coreets may be preferentially adjusted according to a specific priority, where the priority may be configured or predefined by higher layer signaling. Alternatively, the number of blind detections of one or more DCI formats may be preferentially adjusted according to a specific priority, which may be configured or predefined by higher layer signaling. Alternatively, the number of blind detections of one or more aggregation levels may be prioritized according to a particular prioritization, which may be high-level signaling configured or predefined.
Note that the number of blind detections of one aggregation level of one DCI format of one CORESET at one timing position is x, and note that the coefficient c of the number of blind detections is adjusted, the number of blind detections after adjustment may be round (c·x). The parameter c may be the number of blind detections used only to adjust USS.
The above parameter c may be for all CCs. c may be configured by higher layer signaling, for example, may be a correspondence between the number of activated CCs and c; or, the corresponding relation between the number of CORESET and c at one timing position can be configured; alternatively, the number of activated BWP may be associated with c. Alternatively, c may be dynamically indicated on the common PDCCH. Alternatively, c may be obtained based on another parameter, for example, if the maximum number of blind detections of the UE at a timing position is denoted by N and the total number of blind detections before adjustment of the timing position is denoted by N, then c=n/N.
The parameter c may be determined for each CC. c may be configured by higher layer signaling, for example, for each CC, the corresponding relationship between the number of CORESETs in a timing position and c may be configured. Alternatively, c may be dynamically indicated on the common PDCCH. Alternatively, c may be obtained based on another parameter, for example, for one CC, the maximum blind detection number of UE at one timing position is denoted as N, and the total blind detection number before adjustment of this timing position is denoted as N, where c=n/N.
The parameter c may be determined separately for each set of CORESET. c may be configured by higher layer signaling, for example, for each set of CORESETs, the number of CORESETs at a timing position may be configured to correspond to c. Alternatively, c may be dynamically indicated on the common PDCCH. Alternatively, c may be obtained based on another parameter, for example, for a set of CORESET, the maximum number of blind detections of the UE at a timing position is denoted as N, and the total number of blind detections before adjustment of the timing position is denoted as N, where c=n/N.
Example six
When one uplink wideband carrier (CC) is divided into a plurality of BWPs, interference scenarios on different BWPs may be different depending on a resource allocation policy of a base station. For uplink control/data transmission, the difference in interference scenarios results in a change in the uplink transmission power of the appropriate UE. The UE may process the upper transmission power control separately for each BWP; alternatively, the UE may process uplink transmission power control for a set of BWP; alternatively, the UE may still process uplink transmission power control in CC units. For one UE, on one CC, different BWP may configure different services, and by differentiating the BWP to process uplink transmission power, transmission power processing with respect to different reliability requirements of different services is achieved. On one CC, different BWP may configure OFDM (DFT-S-OFDM) with different waveforms, i.e., OFDM or discrete fourier transform spread, so that transmission power processing for different waveforms is achieved by differentiating the BWP processing uplink transmission power. On one CC, different BWP may be configured to use different system parameters, such as subcarrier spacing and/or slot length, so that by differentiating the BWP processing uplink transmission power, transmission power processing for different system parameters is achieved.
For BWP, the uplink transmission power P of the UE in TU i p (i) It can be determined according to the following formula,
P p (i)=P O,pp ·PL p +f p (i)+g(others), (1)
wherein P is O,p Is a power offset parameter, which may further comprise two parts, namely P O,p Is a cell-specific parameter P O_NOMINAL,p And UE-specific parameter P O_UE,p Sum, P O,p =P O_NOMINAL,p +P O_UE,p 。α p Is a parameter controlling the path loss PL p Partially or fully compensated. f (f) p (i) May refer to accumulating power control commands (TPC) to achieve closed loop power control, or f p (i) Or may be a dynamically indicated absolute power adjustment value. g (other) is used to refer to other parameters affecting power control, and the invention is not limited. The above parameters may be configured and processed for an uplink control channel (PUCCH) and an uplink data channel (PUSCH), respectively.
The above parameter P O,p 、P O_NOMINAL,p 、P O_UE,p And/or alpha p May be separately configured for each BWP. Alternatively, the above parameter P may be configured by distinguishing carriers O,p 、P O_NOMINAL,p 、P O_UE,p And/or alpha p And for each BWP of this carrier. Alternatively, the above parameter P may be configured O,p 、P O_NOMINAL,p 、P O_UE,p And/or alpha p And is used for a set of BWP, which may belong to only one carrier or may belong to multiple carriers.
The above parameter f p (i) May be processed separately for each BWP. Alternatively, the above parameter f may be processed by distinguishing carriers p (i) And is used for each BWP of this carrier, for example, accumulating TPC for control and data transmission of each BWP of one carrier. Alternatively, the parameter f may be configured p (i) And is used for a set of BWP, which may belong to only the same carrier, or may belong to multiple carriers, for example, TPC for control and data transmission of the set of BWP is accumulated.
For the above parameter PL p It is necessary to determine the measurement PL p Reference downlink of (2)A signal. The measurement PL may be configured separately for each BWP p Is referred to in (2). Alternatively, it may be a differentiated carrier configuration measurement PL p And for each BWP of this carrier. Alternatively, configuration measurement PL may be p And for a set of BWP, which may belong to only one carrier or may belong to multiple carriers. For one carrier, the above measurement PL p The reference to (a) may be a downlink signal in BWP, e.g., one of the above for measuring PL p May be higher-layer configured or the UE receives BWP of the synchronization channel and/or the broadcast channel. Alternatively, the measurement PL p The reference to (a) may also be based on downlink signal measurements within a set of BWP, which may belong to only one carrier or may belong to multiple carriers. For example, the above group is used for measuring PL p May be configured higher layer or may be individual BWPs within one carrier.
The transmission power determined according to the above formula (1) needs to be further limited by the maximum allowed transmission power.
The first method is that the total power of PUCCH and PUSCH on each BWP on one carrier c cannot exceed the maximum transmission power P CMAX,c (i) A. The invention relates to a method for producing a fibre-reinforced plastic composite The total transmission power of the PUCCH of the UE on each BWP of the carrier c may be Is a BWP-on-PUCCH transmission power P p,c (i) The BWP that can simultaneously transmit the PUCCH on one carrier c may be one or more. When the UE does not transmit PUCCH on carrier c, the total transmission power of PUSCH of the UE on each BWP of carrier c described above +.> Is the transmission power P of the PUSCH on BWP p,d (i) Is a linear value of (c). When UE transmits PUCCH on carrier c, the total transmission power of PUSCH of UE on each BWP of carrier c described above +.> Is P CMAX,c (i) Linear value>Is the linear value of the sum of the power of the PUCCH of each BWP on carrier c for the UE.
The UE may report PHR separately for each BWP. For a BWP, the UE may be based on the PUCCH and PUSCH transmission power on the BWP and the maximum transmission power P of carrier c CMAX,c (i) To obtain PHR. For one BWP, PHR is P when there is no PUCCH CMAX,c (i) With PUSCH transmission power P p,d (i) Is a difference in (c). For a BWP, when there is PUCCH, one type of PHR isWith PUSCH transmission power P p,d (i) Difference of->Maximum transmission power without considering the influence of PUCCH transmission; another type of PHR is P CMAX,c (i) Total transmission power with PUCCH and PUSCH +.>Is a difference in (c). For BWP not transmitting PUSCH, the UE may report virtual PHR, i.e. generate the transmission power of PUCCH and PUSCH according to some configured or predefined parameters, and calculate PHR. In particular, this method may be used in the case where each BWP on carrier c configures the above-mentioned power control parameters separately.
The UE may also report PHR only for carrier c. The UE may be based on PUCCH and PUSC on carrier cH transmission power and maximum transmission power P of carrier c CMAX,c (i) To obtain PHR. When there is no PUCCH, PHR is P CMAX,c (i) With PUSCH transmission powerIs a difference in (c). When there is PUCCH, one type of PHR is +.>Transmit power +.>Difference of->Maximum transmission power without considering the influence of PUCCH transmission; another type of PHR is P CMAX,c (i) Total transmission power with PUCCH and PUSCH>Is a difference in (c). When the PUSCH is not scheduled by carrier c, the UE may report the virtual PHR, i.e. generate the transmission power of PUCCH and PUSCH according to some configured or predefined parameters, and calculate the PHR. / >Is the sum of the transmission powers of the PUSCH scheduled on the respective BWP of carrier c. />Is the sum of the transmission powers of PUCCHs scheduled on the respective BWPs of carrier c. In particular, this method may be used to configure carrier c with a set of the above-described power control parameters, and for the case of individual BWP of carrier c.
The second method is to configure the maximum transmission power P of the UE on each BWP CMAX,p (i) So that the total power of control and data transmission over BWP cannot exceed the maximum transmission power P CMAX,p (i) A. The invention relates to a method for producing a fibre-reinforced plastic composite The transmission power of the PUCCH of the UE on BWP may beP p,c (i) Is the control channel transmission power calculated according to equation (1). When the UE does not transmit the control channel in BWP, the transmission power of PUSCH of the UE on BWP +.>P p,d (i) Is the PUSCH transmission power calculated according to equation (1). When the UE transmits the control channel in BWP, the transmission power of PUSCH of the UE on BWP +.> Is P CMAX,p (i) Linear value>Is a linear value of the power of the UE in the control channel of BWP.
With this approach, PHR may be reported separately for each BWP. For one BWP, PHR is P when there is no PUCCH CMAX,p (i) With PUSCH transmission power P p,d (i) Is a difference in (c). For a BWP, when there is PUCCH, one type of PHR isWith PUSCH transmission power P p,d (i) Difference of- >Maximum transmission power without considering the influence of PUCCH transmission; another type of PHR is P CMAX,p (i) With PUCCH transmission power P p,c (i) And PUSCH transmission power P p,d (i) Is a difference in (c). For BWP not transmitting PUSCH, the UE may report virtual PHR, i.e. generate the transmission power of PUCCH and PUSCH according to some configured or predefined parameters, and calculate PHR.
The third method is to configure a set of BWPs, where the UE is in the set of BWsThe total power of control and data transmission over P cannot exceed the maximum transmission power P CMAX,g (i) A. The application relates to a method for producing a fibre-reinforced plastic composite The total transmission power of the control channel of the UE on the set of BWP may beP p,c (i) Is the transmission power of the control channel on a BWP. When the UE does not transmit control channels on the set of BWP, the total transmission power of the data transmission of the UE on the set of BWP +.>P p,d (i) Is the transmission power of the data channel on a BWP. When the UE transmits a control channel on the set of BWP, the total transmission power of the data transmission of the UE on the set of BWP is +.> Is P CMAX,g (i) Linear value>Is the linear value of the sum of the powers of the control channels of the set of BWP.
Corresponding to the method, the application also discloses a device which can be used for realizing the method, as shown in fig. 6, the device comprises a PDCCH detection and analysis module, a PDSCH receiving module, a PUCCH generating module and a transceiver module, wherein:
The PDCCH detection and analysis module is used for detecting DCI of the scheduling PDSCH on the configured control resource set by the UE and analyzing the detected DCI;
a PDSCH receiving module configured to receive a PDSCH according to the detected DCI;
the PUCCH generation module is used for generating a PUCCH signal to be fed back;
and the transceiver module is used for receiving the downlink signal from the base station and transmitting the PUCCH signal.
Those of ordinary skill in the art will appreciate that all or a portion of the steps carried out in the method of the above-described embodiments may be implemented by a program to instruct related hardware, where the program may be stored in a computer readable storage medium, and where the program, when executed, includes one or a combination of the steps of the method embodiments.
In addition, each functional unit in the embodiments of the present application may be integrated in one processing module, or each unit may exist alone physically, or two or more units may be integrated in one module. The integrated modules may be implemented in hardware or in software functional modules. The integrated modules may also be stored in a computer readable storage medium if implemented in the form of software functional modules and sold or used as a stand-alone product.
The above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, or the like.
The foregoing description of the preferred embodiments of the application is not intended to be limiting, but rather to enable any modification, equivalent replacement, improvement or the like to be made within the spirit and principles of the application.

Claims (28)

1. A method performed by a user equipment, UE, in a wireless communication system, comprising:
detecting a physical downlink control channel PDCCH on a configured control resource set CORESET;
analyzing the detected PDCCH, receiving a physical downlink shared channel PDSCH, and determining physical uplink control channel PUCCH resources for transmitting uplink control information UCI;
transmitting the UCI and transmitting the scheduled PUSCH at the determined PUCCH resource;
the CORESET is configured for downlink control information DCI formats, and CORESET corresponding to different DCI formats are overlapped or partially overlapped;
alternatively, the CORESET is configured with DCI formats that can be carried, CORESETs carrying different DCI formats being overlapping or partially overlapping.
2. The method of claim 1, further comprising at least one of:
Determining a starting point of the second PUCCH format mapped to the channel according to the end point of the channel of the mapping of the first PUCCH format;
acquiring parameters from higher layer signalingAccording to the OS number and +.>Get parameters->According to the parameter->Determining a starting PRB mapped by a second PUCCH format;
determining PUCCH resource offset according to the number of OSs carrying PUCCH resources
3. The method of claim 1, the determining PUCCH resources to transmit UCI comprising one of:
receiving configuration information of N PUCCH resources configured by high-level signaling, then adjusting the N PUCCH resources configured according to the number of OFDM Symbol (OS) used for PUCCH, and determining one of the N PUCCH resources as the PUCCH resource for transmitting UCI according to HARQ-ACK Resource Indication (ARI);
respectively receiving N PUCCH resources configured by high-level signaling under different conditions of the number of the OSs carrying the PUCCH resources, obtaining corresponding N PUCCH resources according to the number of the OSs carrying the PUCCH, and obtaining one of the N PUCCH resources as the PUCCH resource for transmitting UCI according to ARI;
receiving a plurality of groups of PUCCH resources configured by a high-level signaling, wherein each group of PUCCH resources comprises N PUCCH resources, and one PUCCH resource in a group of N PUCCH resources is obtained according to ARI and is used as a PUCCH resource for transmitting UCI;
And receiving a plurality of groups of PUCCH resources configured by the high-level signaling, wherein each group of PUCCH resources comprises N PUCCH resources, and combining the number of the OSs carrying the PUCCH and the ARI to obtain one PUCCH resource in the N PUCCH resources as the PUCCH resource for transmitting the UCI.
4. A method according to claim 3, wherein when there are a plurality of PUCCH formats, PUCCH resources are determined separately for each PUCCH format.
5. The method of claim 3, wherein when there are a plurality of PUCCH formats, the employed PUCCH format is determined according to the UCI bit number and the OS number for PUCCH; or determining the adopted PUCCH format according to UCI bit number and ARI; or determining the adopted PUCCH format according to UCI bit number, OS number used for bearing the PUCCH and ARI.
6. The method of claim 1, the determining PUCCH resources for feedback UCI comprising one of:
receiving configuration information of a group of PUCCH resources configured by high-level signaling, then adjusting the configured group of PUCCH resources according to the number of OFDM Symbols (OS) used for PUCCH, and determining the adjusted group of PUCCH resources as PUCCH resources for transmitting UCI;
and respectively receiving a group of PUCCH resources configured by the high-level signaling under different conditions of the number of the OSs carrying the PUCCH resources, and determining the group of PUCCH resources as PUCCH resources for transmitting UCI according to the number of the OSs carrying the PUCCH.
7. The method of claim 6, wherein when there are a plurality of PUCCH formats, one PUCCH resource to be employed is determined according to the UCI bit number and the OS number for PUCCH, or the PUCCH format to be employed and the one PUCCH resource are determined according to the UCI bit number and the OS number for PUCCH.
8. The method of claim 1, wherein the number of physical resource blocks PRBs unavailable for frequency hopping operation of the uplink data channel varies with the number of OSs carrying PUCCH resources, wherein the number of PRBs unavailable for frequency hopping operation of the uplink data channel is,
a value of the higher layer signaling configuration;
or, a value configured by the high-level signaling is adjusted according to the number of the OSs carrying the PUCCH resources;
or, according to different situations of the number of the OSs carrying the PUCCH resources, respectively using the values configured by the high-layer signaling.
9. The method of claim 1 wherein CORESET carrying the regressive DCI format is less dense than CORESET carrying the transmission mode related DCI format.
10. The method of claim 1, the UE detecting PDCCH comprising:
for one timing position, adjusting the PDCCH blind detection times to enable the total blind detection times to be equal to or approximate to the allowed maximum blind detection times;
Alternatively, the blind detection times are adjusted so that the total blind detection times are equal to or close to the allowed maximum blind detection times only when the PDCCH total blind detection times at one timing position exceeds the allowed maximum blind detection times.
11. The method of claim 10, the adjusting the number of blind detections comprising one of: joint processing is carried out on all the configured CCs; processing each CC respectively; each set of CORESETs was co-processed.
12. The method of claim 1, wherein the step of determining the position of the substrate comprises,
in the PDCCH, scheduling carriers and BWP are indicated with one joint domain;
alternatively, in the PDCCH, the scheduling carrier, BWP and time unit TU are indicated with one joint field.
13. The method of claim 1, wherein the power control is performed on the PUCCH and/or PUSCH when the determined PUCCH resource transmits the UCI and the scheduled PUSCH, wherein a parameter of the power control is configured in one of the following manners:
respectively configuring power control parameters for each BWP;
respectively configuring power control parameters for each carrier wave, wherein each BWP on each carrier wave adopts the same configuration power control parameters;
the power control parameters are respectively configured for each group of BWP.
14. A user equipment, UE, comprising:
The PDCCH detection and analysis module is used for detecting a physical downlink control channel PDCCH on the configured control resource set CORESET; analyzing the detected PDCCH;
the PDSCH receiving module is used for receiving a physical downlink shared channel PDSCH;
the PUCCH generation module is used for determining Physical Uplink Control Channel (PUCCH) resources for transmitting Uplink Control Information (UCI);
a transceiver module, configured to transmit UCI and transmit scheduled PUSCH on the determined PUCCH resource;
the CORESET is configured for downlink control information DCI formats, and CORESET corresponding to different DCI formats are overlapped or partially overlapped;
alternatively, the CORESET is configured with DCI formats that can be carried, CORESETs carrying different DCI formats being overlapping or partially overlapping.
15. The user equipment of claim 14, wherein the PUCCH generation module is further configured to:
determining a starting point of the second PUCCH format mapped to the channel according to the end point of the channel of the mapping of the first PUCCH format;
acquiring parameters from higher layer signalingAccording to the OS number and +.>Get parameters->According to the parameter->Determining a starting PRB mapped by a second PUCCH format;
determining PUCCH resource offset according to the number of OSs carrying PUCCH resources
16. The user equipment of claim 14, wherein the PUCCH generation module is specifically configured to:
receiving configuration information of N PUCCH resources configured by high-level signaling, then adjusting the N PUCCH resources configured according to the number of OFDM Symbol (OS) used for PUCCH, and determining one of the N PUCCH resources as the PUCCH resource for transmitting UCI according to HARQ-ACK Resource Indication (ARI);
respectively receiving N PUCCH resources configured by high-level signaling under different conditions of the number of the OSs carrying the PUCCH resources, obtaining corresponding N PUCCH resources according to the number of the OSs carrying the PUCCH, and obtaining one of the N PUCCH resources as the PUCCH resource for transmitting UCI according to ARI;
receiving a plurality of groups of PUCCH resources configured by a high-level signaling, wherein each group of PUCCH resources comprises N PUCCH resources, and one PUCCH resource in a group of N PUCCH resources is obtained according to ARI and is used as a PUCCH resource for transmitting UCI;
and receiving a plurality of groups of PUCCH resources configured by the high-level signaling, wherein each group of PUCCH resources comprises N PUCCH resources, and combining the number of the OSs carrying the PUCCH and the ARI to obtain one PUCCH resource in the N PUCCH resources as the PUCCH resource for transmitting the UCI.
17. The user equipment according to claim 16, wherein the PUCCH generating module is specifically configured to determine PUCCH resources for each PUCCH format when there are multiple PUCCH formats.
18. The user equipment according to claim 16, wherein the PUCCH generating module is specifically configured to determine, when there are a plurality of PUCCH formats, the PUCCH format to be employed according to the UCI bit number and the OS number for PUCCH; or determining the adopted PUCCH format according to UCI bit number and ARI; or determining the adopted PUCCH format according to UCI bit number, OS number used for bearing the PUCCH and ARI.
19. The user equipment of claim 14, wherein the PUCCH generation module is specifically configured to:
receiving configuration information of a group of PUCCH resources configured by high-level signaling, then adjusting the configured group of PUCCH resources according to the number of OFDM Symbols (OS) used for PUCCH, and determining the adjusted group of PUCCH resources as PUCCH resources for transmitting UCI;
and respectively receiving a group of PUCCH resources configured by the high-level signaling under different conditions of the number of the OSs carrying the PUCCH resources, and determining the group of PUCCH resources as PUCCH resources for transmitting UCI according to the number of the OSs carrying the PUCCH.
20. The user equipment according to claim 19, wherein the PUCCH generating module is specifically configured to determine, when there are a plurality of PUCCH formats, one PUCCH resource to be used according to the UCI bit number and the OS number for PUCCH, or determine, according to the UCI bit number and the OS number for PUCCH, the PUCCH format to be used and the one PUCCH resource to be used.
21. The user equipment of claim 14, wherein the number of physical resource blocks PRBs unavailable for frequency hopping operation of the uplink data channel varies with the number of OSs carrying PUCCH resources, wherein the number of PRBs unavailable for frequency hopping operation of the uplink data channel is,
a value of the higher layer signaling configuration;
or, a value configured by the high-level signaling is adjusted according to the number of the OSs carrying the PUCCH resources;
or, according to different situations of the number of the OSs carrying the PUCCH resources, respectively using the values configured by the high-layer signaling.
22. The user equipment of claim 14, wherein CORESET carrying the regressive DCI format is less dense than CORESET carrying the transmission mode related DCI format.
23. The user equipment of claim 14, wherein the PDCCH detection and analysis module is specifically configured to:
for one timing position, adjusting the PDCCH blind detection times to enable the total blind detection times to be equal to or approximate to the allowed maximum blind detection times;
alternatively, the blind detection times are adjusted so that the total blind detection times are equal to or close to the allowed maximum blind detection times only when the PDCCH total blind detection times at one timing position exceeds the allowed maximum blind detection times.
24. The user equipment of claim 23, the PDCCH detection and analysis module is specifically configured to:
joint processing is carried out on all the configured CCs;
processing each CC respectively;
each set of CORESETs was co-processed.
25. The user equipment of claim 14, wherein the scheduling carrier and BWP are indicated with one joint domain in the PDCCH; alternatively, in the PDCCH, the scheduling carrier, BWP and time unit TU are indicated with one joint field.
26. The ue of claim 14, wherein the transceiver module is specifically configured to perform power control on the PUCCH and/or PUSCH when the determined PUCCH resource transmits UCI and transmits the scheduled PUSCH, where a parameter of the power control is configured in one of the following manners:
respectively configuring power control parameters for each BWP;
respectively configuring power control parameters for each carrier wave, wherein each BWP on each carrier wave adopts the same configuration power control parameters;
the power control parameters are respectively configured for each group of BWP.
27. A user equipment, UE, comprising: a processor, a memory;
the memory is used for storing a computer program;
the processor being adapted to perform the method of any of the preceding claims 1-13 by invoking the computer program.
28. A computer readable medium, characterized in that a computer program is stored for implementing the method according to any one of claims 1-13 when being executed by a processor.
CN201710454748.2A 2017-03-24 2017-06-15 Method and equipment for transmitting control information Active CN108811138B (en)

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US17/470,482 US11917561B2 (en) 2017-03-24 2021-09-09 Method and apparatus for performing data transmission based on multiple transmission time intervals, for transmitting control information, and for transmitting data by employing multiple ports

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