CN107959557B - Method and equipment in UE (user equipment) supporting multi-carrier communication and base station - Google Patents

Method and equipment in UE (user equipment) supporting multi-carrier communication and base station Download PDF

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CN107959557B
CN107959557B CN201610899277.1A CN201610899277A CN107959557B CN 107959557 B CN107959557 B CN 107959557B CN 201610899277 A CN201610899277 A CN 201610899277A CN 107959557 B CN107959557 B CN 107959557B
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target
signaling
time
carrier
frequency resource
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CN107959557A (en
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蒋琦
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Shanghai Langbo Communication Technology Co Ltd
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Shanghai Langbo Communication Technology Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/121—Wireless traffic scheduling for groups of terminals or users
    • 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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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention discloses a method and a device for supporting multi-carrier communication in UE and a base station. The UE receives a first signaling in a first time-frequency resource pool of a first carrier, then receives L target signaling in L target time-frequency resource pools, and operates L wireless signals firstly. The first signaling and the target signaling are physical layer signaling, respectively. The L target signaling are used to determine L configuration information, respectively, where the L configuration information and the L wireless signals are in one-to-one correspondence. The L target signaling and the first signaling are used to determine the L configuration information. The L target time frequency resource pools are positioned on carriers in a target carrier set, and the first carrier is a carrier outside the target carrier set. The first signaling and the L target signaling are sent on different carriers, so that different delay requirements are met, the transmission of the control signaling is flexibly configured, and the overall system performance and the spectrum efficiency are improved.

Description

Method and equipment in UE (user equipment) supporting multi-carrier communication and base station
Technical Field
The present application relates to transmission schemes for wireless signals in wireless communication systems, and more particularly, to methods and apparatus for supporting multi-carrier communication.
Background
In a conventional wireless communication system based on a digital modulation scheme, for example, in a 3GPP (3rd Generation Partner Project) cellular system, Downlink and uplink wireless signals are transmitted based on scheduling of a base station, and Control Information related to the scheduling is transmitted to a UE through DCI (Downlink Control Information). A New generation of Radio access technologies (NR) is currently discussed in 3 GPP. Among them, an important application scenario is URLLC (Ultra-Reliable and Low latency communications). Another important scenario is that in a high-frequency carrier, a narrow Beam is formed to point in a specific direction by Beam Forming (Beam Forming) of large-scale (Massive) MIMO, so as to improve communication quality, thereby resisting severe path loss in a high frequency. Besides, scheduling transmission of the same block data by a plurality of DCIs (downlink control Information) has been introduced in the Study Item (research topic) related to reduction of delay of Rel-14, and is also mentioned and discussed in the latest NR discussion.
Disclosure of Invention
In the NR system, the UE faces services with different BLER (Block Error Rate) requirements and different delay requirements, and needs to transmit simultaneously in different frequency bands. Due to the different physical characteristics of the carriers generated by transmission, different path losses are caused per unit distance, and the path loss is more serious the higher the carrier frequency is. Multi-DCI for one data transmission has been discussed in 3GPP for the characteristics of different fields (fields) in one DCI. An intuitive way is to put Multi-DCI on one carrier for transmission. However, when this approach is applied to URLLC under high frequency Massive-MIMO, it would be difficult to satisfy both high transmission robustness and low delay.
The present application provides a solution to the above problems. It should be noted that the embodiments and features of the embodiments of the present application may be arbitrarily combined with each other without conflict. For example, embodiments and features in embodiments in the UE of the present application may be applied in a base station and vice versa.
The application discloses a method in UE supporting multi-carrier communication, which comprises the following steps:
-step a. receiving first signalling in a first pool of time-frequency resources of a first carrier;
-step b. receiving L target signalling in L target time frequency resource pools;
a first operation of L radio signals.
Wherein the first signaling and the target signaling are physical layer signaling, respectively. The first operation is a reception or the first operation is a transmission. The L target signaling are respectively used for determining L configuration information, the L configuration information and the L wireless signals are in one-to-one correspondence, and the first signaling is used for determining the L configuration information. The configuration information includes { corresponding time domain resource occupied by the wireless signal, corresponding frequency domain resource occupied by the wireless signal, at least one of MCS (Modulation and Coding Status), NDI (New Data Indicator), RV (Redundancy Version), HARQ (Hybrid Automatic Repeat reQuest) process number }. The L target time-frequency resource pools are located on carriers in a target carrier set, the target carrier set comprises K target carriers, and the first carrier is a carrier other than the K target carriers. The L is a positive integer, and the K is a positive integer not greater than the L.
As an embodiment, the method is characterized in that the same data transmission is scheduled through a plurality of DCIs, and in low-delay communication and URLLC scenarios, the same scheduling information corresponding to a plurality of UEs may be transmitted in the first signaling, and different scheduling information corresponding to a plurality of UEs may be transmitted in the second signaling, so that overhead of control signaling may be reduced.
As an embodiment, the method has the advantages that when data scheduling is performed on a high-frequency carrier in a Multi-DCI manner, the scheduling information corresponding to data transmission can be more important, and control information which is not fast to change is transmitted on a low-frequency carrier, so that the performance of the carrier is ensured under the condition of low signaling overhead; and the control information which changes more quickly is put on a high-frequency carrier wave for transmission so as to meet the requirement of low delay.
As an embodiment, the target signaling and the corresponding wireless signal are transmitted on the same carrier.
As an example, L is equal to 1.
As an embodiment, the L is greater than 1, and the L target signaling and the L wireless signals are both transmitted on a second carrier.
As a sub-embodiment of this embodiment, K is equal to 1, and the target carrier set only includes the second carrier.
As a sub-embodiment of this embodiment, the second Carrier is indicated by a CIF (Carrier Indicator Field) Field in the first signaling.
As a sub-embodiment of this embodiment, the L wireless signals are transmitted on the second carrier, or the L wireless signals are transmitted on a carrier paired with the second carrier.
As a sub-embodiment of this embodiment, the above three sub-embodiments have the advantage that no new control signaling domain is introduced, and the transmissions for the same performance requirement (such as urccc) can all be put on one carrier (such as the second carrier).
For one embodiment, the first time-frequency resource pool includes K1 time intervals in the time domain. The K1 is a positive integer.
For one embodiment, the target time-frequency resource pool includes K2 time intervals in the time domain. The K2 is a positive integer.
As a sub-embodiment of the two above embodiments, the K1 is less than the K2.
As a sub-embodiment of the two above embodiments, the K1 time intervals and the K2 time intervals are orthogonal. Wherein, the being orthogonal means: there is not one time instant belonging to both the K1 time intervals and the K2 time intervals.
As a sub-embodiment of the two above embodiments, said K1 is equal to 1.
As a sub-embodiment of the two above embodiments, said K2 is equal to 1.
As an embodiment, the first time-frequency resource pool and the L target time-frequency resource pools both belong to a first time window in the time domain.
As a sub-embodiment of this embodiment, the duration of the first time window is one of {0.5ms (milliseconds), 1ms }.
As an embodiment, the first time-frequency resource pool belongs to a first time window in the time domain, and the L target time-frequency resource pools all belong to a second time window in the time domain. The first time window precedes the second time window in the time domain.
As a sub-embodiment of this embodiment, the duration of the first time window is one of {0.5ms, 1ms }.
As a sub-embodiment of this embodiment, the duration of the second time window is one of {0.5ms, 1ms }.
As an embodiment, the first time-frequency Resource pool occupies a positive integer number of RUs (Resource units).
As an embodiment, the target time-frequency resource pool occupies a positive integer number of RUs.
As an embodiment, an RU in the present application occupies one subcarrier in the frequency domain and occupies the duration of one multicarrier symbol in the time domain.
As an embodiment, the multi-Carrier symbol in the present application is one of { OFDM (Orthogonal Frequency Division Multiplexing) symbol, SC-FDMA (Single-Carrier Frequency Division Multiplexing Access) symbol, FBMC (Filter Bank multi-Carrier) symbol, OFDM symbol including CP (Cyclic Prefix), DFT-s-OFDM (Discrete Fourier Transform spread Orthogonal Frequency Division Multiplexing) symbol including CP }.
As a sub-embodiment of the above two embodiments, the duration of the one multicarrier symbol is equal to the inverse of the corresponding subcarrier spacing of the RU, the unit of the duration of the one multicarrier symbol is seconds, and the unit of the corresponding subcarrier spacing of the RU is hertz.
As a sub-embodiment of the two embodiments described above, the duration of the one multicarrier symbol does not include the duration of the CP.
As an embodiment, the time interval in this application occupies a positive integer number of consecutive multicarrier symbols in the time domain.
As a sub-embodiment of this embodiment, the time interval comprises at least one of { class I, class II, class III, class IV }. Wherein the category I is for a time interval in which the number of multicarrier symbols occupied in the time domain is equal to 1, the category II is for a time interval in which the number of multicarrier symbols occupied in the time domain is equal to 2, the category III is for a time interval in which the number of multicarrier symbols occupied in the time domain is equal to 3, and the category IV is for a time interval in which the number of multicarrier symbols occupied in the time domain is equal to 7.
As an embodiment, a Cyclic Redundancy Check (CRC) of the physical layer control signaling corresponding to the target signaling is scrambled by a Radio Network Temporary Identity (RNTI) specific to the UE.
As an embodiment, CRC of physical layer control signaling corresponding to the target signaling is scrambled by C-RNTI (Cell-RNTI, Cell radio network temporary identity).
As an embodiment, the CRC of the physical layer control signaling corresponding to the first signaling is scrambled by the UE-specific RNTI.
As an embodiment, CRC of physical layer control signaling corresponding to the first signaling is scrambled by C-RNTI.
As an embodiment, the CRC of the physical layer control signaling corresponding to the first signaling is scrambled by a UE group-specific RNTI.
As a sub-embodiment of this embodiment, the UEs included in the UE group are UEs performing URLLC service transmission.
As a sub-embodiment of this embodiment, the UEs included in the UE group are UEs performing low-delay communication.
As an embodiment, the CRC of the physical layer control signaling corresponding to the first signaling is scrambled by a cell-specific RNTI.
As an embodiment, the CRC of the physical layer control signaling corresponding to the first signaling is scrambled by a default RNTI.
As a sub-embodiment of this embodiment, the default RNTI is used to determine the first time-frequency resource pool.
As a sub-embodiment of this embodiment, the default RNTI corresponds to a SI-RNTI (System Information RNTI).
As one embodiment, the first time-frequency resource pool includes a Search Space (Search Space) of the first signaling.
As an embodiment, the L target time-frequency resource pools respectively include search spaces of the L target signaling.
For one embodiment, the wireless signal includes physical layer data.
As an embodiment, a center frequency point of the first carrier is less than 6 GHz.
As an embodiment, the center frequency points of the carriers in the target carrier set are all greater than 6 GHz.
Specifically, according to one aspect of the present application, the method is characterized in that the step a further includes the following steps:
step A0. receives the second signaling.
Wherein the second signaling is used to determine the first carrier.
As an embodiment, the method has the advantage of indicating the first carrier through the second signaling, thereby more flexibly configuring a carrier for sending control information.
As an embodiment, the second signaling contains given indication information indicating at least one of { bandwidth, center frequency point } of the first carrier.
As an embodiment, the second signaling includes given indication information indicating an index to which the first carrier corresponds in a given carrier set.
As a sub-embodiment of this embodiment, the given set of carriers is higher layer configured or the given set of carriers is default.
As an embodiment, the second signaling is RRC (Radio Resource Control) signaling.
As an embodiment, the second signaling is system information.
As one embodiment, the second signaling is Cell-specific.
As an embodiment, the second signaling is specific to a TRP (Transmission Reception Point).
Specifically, according to an aspect of the present application, the method is characterized in that the step B further includes the steps of:
step B0. receives the third signaling.
Wherein the third signaling is used to determine at least one of { the target set of carriers, time-frequency resources occupied by the L target pools of time-frequency resources }.
As an embodiment, the above method has an advantage that the carrier for sending the control information and the corresponding time-frequency resource pool are flexibly configured by at least one of the third signaling configuration { the target carrier set, the time-frequency resources occupied by the L target time-frequency resource pools }, so that the load of the control signaling is effectively reduced, and the spectrum efficiency is improved.
As an embodiment, the third signaling includes given indication information, where the given indication information indicates at least one of { bandwidth, center frequency point } of a given target carrier, and the given target carrier is any target carrier in the target carrier set.
As an embodiment, the third signaling contains given indication information indicating an index to which a given target carrier corresponds in a given carrier set. The given target carrier is any target carrier in the set of target carriers.
As a sub-embodiment of this embodiment, the given set of carriers is higher layer configured or the given set of carriers is default.
As an embodiment, the third signaling includes given indication information indicating a time domain resource location and a frequency domain resource location occupied by the L target time-frequency resource pools.
As a sub-embodiment of this embodiment, the time domain resource location occupied by the target time frequency resource pool refers to a location of a positive integer number of multicarrier symbols occupied by the target time frequency resource pool in a given time interval. The given time interval is the time interval in which the target pool of time-frequency resources is located.
As an additional embodiment of this sub-embodiment, the positive integer number of multicarrier symbols is consecutive in the time domain.
As a sub-embodiment of this embodiment, the frequency domain resource position occupied by the target time-frequency resource pool refers to a frequency domain position of a positive integer number of RU sets occupied by the target time-frequency resource pool in a carrier corresponding to the target time-frequency resource pool.
As an adjunct embodiment to this sub-embodiment, the RU set occupies a positive integer number of consecutive subcarriers in the frequency domain.
As an embodiment, the third signaling is used to determine K target carriers included in the target carrier set.
As a sub-embodiment of this embodiment, the third signaling is further used to determine correspondence between the K target carriers and the L target time-frequency resource pools.
As an auxiliary embodiment of the sub-embodiment, K is equal to L, and the K target carriers correspond to the L target time-frequency resource pools one to one.
As a sub-embodiment of this embodiment, K is equal to 1, and the target carrier set only includes one target carrier, and the target carrier corresponds to the second carrier.
As an additional embodiment of the sub-embodiment, the L target time-frequency resource pools belong to a given time-frequency resource set, time-frequency resources occupied by the given time-frequency resource set are continuous, and frequency-frequency resources occupied by the given time-frequency resource set are also continuous.
As an example of this subsidiary embodiment, said third signalling comprises given indication information used to indicate time and frequency domain resources occupied by said given set of time-frequency resources.
In particular, according to an aspect of the present application, the above method is characterized in that the first signaling is used to determine at least the former of { the target carrier set, the time-frequency resources occupied by the L target time-frequency resource pools }.
As an embodiment, the above method has the advantages that at least the former of the first signaling indication { the target carrier set, the time frequency resources occupied by the L target time frequency resource pools } is directly used, so that the signaling overhead is saved, and the method can be dynamically changed and is more flexible than a mode of adopting high-layer information configuration.
As an embodiment, the first signaling is used to determine K target carriers included in the target carrier set.
As a sub-embodiment of this embodiment, the first signaling includes given indication information, where the given indication information indicates at least one of { bandwidth, center frequency point } of a given target carrier, and the given target carrier is any target carrier in the target carrier set.
As a sub-embodiment of this embodiment, the first signaling contains given indication information indicating an index corresponding to a given target carrier in a given carrier set. The given target carrier is any target carrier in the set of target carriers.
As a sub-embodiment of this embodiment, the first signaling is further used to determine correspondence between the K target carriers and the L target time-frequency resource pools.
As an auxiliary embodiment of the sub-embodiment, K is equal to L, and the K target carriers correspond to the L target time-frequency resource pools one to one.
As a sub-embodiment of this embodiment, K is equal to 1, and the target carrier set only includes one target carrier, and the target carrier corresponds to the second carrier.
As an additional embodiment of this sub-embodiment, the second carrier is determined by the CIF field of the first signaling.
As an additional embodiment of the sub-embodiment, the L target time-frequency resource pools belong to a given time-frequency resource set, time-frequency resources occupied by the given time-frequency resource set are continuous, and frequency-frequency resources occupied by the given time-frequency resource set are also continuous.
As an example of this subsidiary embodiment, said first signalling is further used for determining time domain resources and frequency domain resources occupied by said given set of time frequency resources.
As an embodiment, the first signaling is used to determine the target carrier set and the third signaling is used to determine the time-frequency resources occupied by the L target pools of time-frequency resources.
As a sub-embodiment of this embodiment, the target carrier set only includes one target carrier, and the target carrier corresponds to the second carrier. The L target time-frequency resource pools belong to a given set of time-frequency resources. The third signaling is used to determine time-frequency resources occupied by the given set of time-frequency resources in the second carrier.
As a sub-embodiment of this embodiment, the target carrier set includes L target carriers, and the L target carriers correspond to the L target time-frequency resource pools one to one. The third signaling comprises L pieces of sub information, and a given sub information in the L pieces of sub information is used for confirming the time frequency resources occupied by a given target time frequency resource pool in a given target carrier. The given sub-information is any one of the L sub-information, the given target time-frequency resource pool is a target time-frequency resource pool corresponding to the given sub-information, and the given target carrier is a carrier where the given target time-frequency resource pool is located.
Specifically, according to an aspect of the present application, the method is characterized in that the step C further includes the steps of:
step c1. first perform L HARQ-ACK (hybrid automatic repeat request Acknowledgement) information.
Wherein the first operation is receive and the first execution is transmit, or the first operation is transmit and the first execution is receive. The L HARQ-ACK information is used to determine whether the L wireless signals are decoded correctly, respectively.
As an embodiment, at least one of { the first time-frequency resource pool, the target time-frequency resource pool occupied by the target signaling corresponding to the wireless signal } is used to determine the time-frequency resources occupied by the HARQ-ACK information.
As an embodiment, the above embodiment has the advantage that the configuration of the time-frequency resource pool is linked with the time-frequency resources occupied by the HARQ-ACK information, so as to save the overhead of the related indication information and improve the spectrum efficiency.
As an embodiment, the HARQ-ACK information includes 1 information bit, and the corresponding wireless signal includes one Transport Block (TB).
As an embodiment, at least one of the L HARQ-ACK messages includes P information bits, where P is greater than 1, and the corresponding wireless signal includes P TBs, where the P information bits are respectively used to indicate whether the P TBs are decoded correctly.
As an embodiment, the L HARQ-ACK information are located in different time intervals in the time domain.
As an embodiment, a given HARQ-ACK information occupies M multicarrier symbols in a time domain, where M is a positive integer, and a value of M is related to a number of multicarrier symbols occupied by a wireless signal corresponding to the given HARQ-ACK information. The given HARQ-ACK information is one of the L HARQ-ACK information.
As an embodiment, in the L HARQ-ACK information, there are first HARQ-ACK information and second HARQ-ACK information, where the first HARQ-ACK information occupies a first time interval, the second HARQ-ACK information occupies a second time interval, and the number of included multicarrier symbols of the first time interval and the number of included multicarrier symbols of the second time interval are different.
The application discloses a method in a base station supporting multi-carrier communication, which comprises the following steps:
-step a. transmitting first signalling in a first pool of time-frequency resources of a first carrier;
step B, sending L target signaling in L target time frequency resource pools;
-step c. second manipulation of L radio signals.
Wherein the first signaling and the target signaling are physical layer signaling, respectively. The second operation is transmitting or the second operation is receiving. The L target signaling are respectively used for determining L configuration information, the L configuration information and the L wireless signals are in one-to-one correspondence, and the first signaling is used for determining the L configuration information. The configuration information includes at least one of { time domain resource occupied by the corresponding wireless signal, frequency domain resource occupied by the corresponding wireless signal, MCS, NDI, RV, HARQ process number }. The L target time-frequency resource pools are located on carriers in a target carrier set, the target carrier set comprises K target carriers, and the first carrier is a carrier other than the K target carriers. The L is a positive integer, and the K is a positive integer not greater than the L.
Specifically, according to one aspect of the present application, the method is characterized in that the step a further includes the following steps:
step A0. sends the second signaling.
Wherein the second signaling is used to determine the first carrier.
Specifically, according to an aspect of the present application, the method is characterized in that the step B further includes the steps of:
step B0. sends the third signaling.
Wherein the third signaling is used to determine at least one of { the target set of carriers, time-frequency resources occupied by the L target pools of time-frequency resources }.
In particular, according to an aspect of the present application, the above method is characterized in that the first signaling is used to determine at least the former of { the target carrier set, the time-frequency resources occupied by the L target time-frequency resource pools }.
Specifically, according to an aspect of the present application, the method is characterized in that the step C further includes the steps of:
-step c1. second performing L HARQ-ACK information.
Wherein the second operation is a transmit and the second execution is a receive, or the second operation is a receive and the second execution is a transmit. The L HARQ-ACK information is used to determine whether the L wireless signals are decoded correctly, respectively.
The application discloses a user equipment supporting multi-carrier communication, which comprises the following modules:
-a first receiving module: means for receiving first signaling in a first time-frequency resource pool of a first carrier;
-a second receiving module: receiving L target signaling in L target time frequency resource pools;
-a first processing module: for the first operation L wireless signals.
Wherein the first signaling and the target signaling are physical layer signaling, respectively. The first operation is a reception or the first operation is a transmission. The L target signaling are respectively used for determining L configuration information, the L configuration information and the L wireless signals are in one-to-one correspondence, and the first signaling is used for determining the L configuration information. The configuration information includes at least one of { time domain resource occupied by the corresponding wireless signal, frequency domain resource occupied by the corresponding wireless signal, MCS, NDI, RV, HARQ process number }. The L target time-frequency resource pools are located on carriers in a target carrier set, the target carrier set comprises K target carriers, and the first carrier is a carrier other than the K target carriers. The L is a positive integer, and the K is a positive integer not greater than the L.
As an embodiment, the first receiving module is further configured to receive second signaling, where the second signaling is used to determine the first carrier.
As an embodiment, the second receiving module is further configured to receive a third signaling. The third signaling is used to determine at least one of { the target set of carriers, time-frequency resources occupied by the L target pools of time-frequency resources }.
As an embodiment, the first processing module is further configured to perform first L HARQ-ACK messages. The first operation is receive and the first execution is send, or the first operation is send and the first execution is receive. The L HARQ-ACK information is used to determine whether the L wireless signals are decoded correctly, respectively.
In particular, according to an aspect of the present application, the above apparatus is characterized in that the first signaling is used to determine at least the former one of { the target carrier set, the time-frequency resources occupied by the L target time-frequency resource pools }.
The application discloses a base station device supporting multi-carrier communication, which comprises the following modules:
-a first sending module: the first signaling is sent in a first time-frequency resource pool of a first carrier;
-a second sending module: the system comprises a time frequency resource pool, a target time frequency resource pool and a target signaling pool, wherein the time frequency resource pool is used for sending L target signaling;
-a second processing module: for a second operation L wireless signals.
Wherein the first signaling and the target signaling are physical layer signaling, respectively. The second operation is transmitting or the second operation is receiving. The L target signaling are respectively used for determining L configuration information, the L configuration information and the L wireless signals are in one-to-one correspondence, and the first signaling is used for determining the L configuration information. The configuration information includes at least one of { time domain resource occupied by the corresponding wireless signal, frequency domain resource occupied by the corresponding wireless signal, MCS, NDI, RV, HARQ process number }. The L target time-frequency resource pools are located on carriers in a target carrier set, the target carrier set comprises K target carriers, and the first carrier is a carrier other than the K target carriers. The L is a positive integer, and the K is a positive integer not greater than the L.
As an embodiment, the first sending module is further configured to send second signaling, where the second signaling is used to determine the first carrier.
As an embodiment, the second sending module is further configured to send a third signaling. The third signaling is used to determine at least one of { the target set of carriers, time-frequency resources occupied by the L target pools of time-frequency resources }.
As an embodiment, the second processing module is further configured to perform L HARQ-ACK messages in a second manner. The second operation is a transmit and the second execution is a receive, or the second operation is a receive and the second execution is a transmit. The L HARQ-ACK information is used to determine whether the L wireless signals are decoded correctly, respectively.
In particular, according to an aspect of the present application, the above apparatus is characterized in that the first signaling is used to determine at least the former one of { the target carrier set, the time-frequency resources occupied by the L target time-frequency resource pools }.
Compared with the prior art, the method has the following technical advantages:
sending the first signaling and the L target signaling on different carriers, so as to flexibly configure control signaling transmission while meeting different delay requirements and transmission performance, thereby improving overall system performance and spectral efficiency.
Sending the first signaling and the L target signaling on different carriers, so as to more flexibly configure the control signaling transmission of the system when the URLLC application scenario and the carrier aggregation scenario are applied in combination.
And designing the first time-frequency resource pool and the target time-frequency resource pool to facilitate control of signaling blind detection and improve system efficiency.
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Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
fig. 1 shows a flow diagram of a first signaling transmission according to an embodiment of the application;
fig. 2 shows a flow diagram of a first signaling transmission according to another embodiment of the present application;
FIG. 3 shows a schematic diagram of a first time-frequency resource pool and L target time-frequency resource pools according to an embodiment of the present application;
FIG. 4 shows a schematic diagram of a first pool of time-frequency resources and L pools of target time-frequency resources according to another embodiment of the present application;
FIG. 5 shows a schematic diagram of a first pool of time-frequency resources and L pools of target time-frequency resources according to yet another embodiment of the present application;
FIG. 6 shows a block diagram of a processing device in a UE according to an embodiment of the present application;
fig. 7 shows a block diagram of a processing means in a base station according to an embodiment of the present application;
Detailed Description
The technical solutions of the present application will be further described in detail with reference to the accompanying drawings, and it should be noted that the embodiments and features of the embodiments of the present application can be arbitrarily combined with each other without conflict.
Example 1
Embodiment 1 illustrates a flow chart of a first signaling transmission according to the present application, as shown in fig. 1. In fig. 1, base station N1 is a serving cell maintaining base station for UE U2. The steps identified by blocks F0 and F1 are optional.
For theBase station N1In step S10, the second signaling is sent, in step S11, the third signaling is sent, in step S12, the first signaling is sent in the first time-frequency resource pool of the first carrier, in step S13, the L target signaling are sent in the L target time-frequency resource pools, in step S14, the L radio signals are sent, and in step S15, the L HARQ-ACK information is received.
For theUE U2In step S20, the second signaling is received, in step S21, the third signaling is received, in step S22, the first signaling is received in the first time-frequency resource pool of the first carrier, in step S23, the L target signaling are received in the L target time-frequency resource pools, in step S24, the L radio signals are received, and in step S25, the L HARQ-ACK information is transmitted.
As a sub-embodiment, the Physical layer Channel corresponding to the first signaling is one of a PDCCH (Physical Downlink Control Channel), an EPDCCH (Enhanced Physical Downlink Control Channel), and a Short Latency Physical Downlink Control Channel (Short PDCCH).
As a sub-embodiment, the physical layer channel corresponding to the target signaling is sPDCCH.
As a sub-embodiment, the Physical layer Channel corresponding to the wireless signal is one of { PDSCH (Physical Downlink Shared Channel) } and sPDSCH (Short Latency Physical Downlink Shared Channel).
As a sub-embodiment, the transmission Channel corresponding to the wireless signal is DL-SCH (Downlink Shared Channel).
As a sub-embodiment, the first carrier is default or predefined.
As a sub-embodiment, the first pool of time-frequency resources is default or predefined.
As a sub-embodiment, the L target time-frequency resource pools are default or predefined.
Example 2
Embodiment 2 illustrates a flow chart of another first signaling transmission according to the present application, as shown in fig. 2. In fig. 2, base station N3 is the serving cell maintaining base station for UE U4. The steps identified by blocks F2 and F3 are optional.
For theBase station N3In step S30, the second signaling is sent, in step S31, the third signaling is sent, in step S32, the first signaling is sent in the first time-frequency resource pool of the first carrier, in step S33, L target signaling are sent in L target time-frequency resource pools, in step S34, L wireless signals are received, and in step S35, L HARQ-ACK information is sent.
For theUE U4In step S40, the second signaling is received, in step S41, the third signaling is received, in step S42, the first signaling is received in the first time-frequency resource pool of the first carrier, in step S43, L target signaling are received in L target time-frequency resource pools, in step S44, L radio signals are transmitted, and in step S45, L HARQ-ACK information is received.
As a sub-embodiment, the Physical layer Channel corresponding to the wireless signal is one of a PUSCH (Physical Uplink Shared Channel) and a Short Latency Physical Uplink Shared Channel (Short Physical Uplink Shared Channel).
As a sub-embodiment, the transmission Channel corresponding to the wireless signal is UL-SCH (Uplink Shared Channel).
As a sub-embodiment, the first carrier is default or predefined.
As a sub-embodiment, the first pool of time-frequency resources is default or predefined.
As a sub-embodiment, the L target time-frequency resource pools are default or predefined.
Example 3
Embodiment 3 illustrates a schematic diagram of a first time-frequency resource pool and L target time-frequency resource pools. As shown in fig. 3, the first time-frequency resource pool is located in a first carrier in a frequency domain, and all the L target time-frequency resource pools are second carriers in the frequency domain. The first carrier and the second carrier are orthogonal in the frequency domain. The first time-frequency resource pool belongs to a given time interval in the time domain, and the L target time-frequency resource pools respectively belong to a target time interval #1 to a target time interval # L in the time domain.
As a sub-embodiment, that the first carrier and the second carrier are orthogonal in the frequency domain means that: there is not one subcarrier belonging to both the first carrier and the second carrier.
As a sub-embodiment, the given time interval occupies a positive integer number of multicarrier symbols.
As a sub-embodiment, the target time interval # i occupies a positive integer number of multicarrier symbols. Wherein i is a positive integer not less than and not more than L.
As a sub-embodiment, the given time interval belongs to a first time window in the time domain, and the target time interval #1 to the target time interval # L belong to the first time window in the time domain.
As a subsidiary embodiment of this sub-embodiment, the duration of said first time window is equal to one of {0.5ms, 1ms }.
As a sub-embodiment, the given time interval belongs to a first time window in the time domain, and the target time interval #1 to the target time interval # L belong to a second time window in the time domain.
As a sub-embodiment of this embodiment, the duration of the first time window is equal to one of {0.5ms, 1ms }.
As a sub-embodiment of this embodiment, the duration of the second time window is equal to one of {0.5ms, 1ms }.
As a sub-embodiment of this embodiment, the first time window precedes the second time window in the time domain.
As a sub-embodiment, the starting time of the first time-frequency resource pool in the time domain is the same as the starting time of the given time interval in the time domain.
As a sub-embodiment, the starting time of the target time-frequency resource pool # i in the time domain is the same as the starting time of the target time interval # i in the time domain. The i is a positive integer not less than 1 and not more than L.
Example 4
Embodiment 4 illustrates another schematic diagram of the first time-frequency resource pool and L target time-frequency resource pools. As shown in fig. 4, the first time-frequency resource pool is located in the first carrier in the frequency domain, and the L target time-frequency resource pools are located in the target carrier #1 to the target carrier # L in the frequency domain, respectively. The first carrier and the target carrier # i are orthogonal in the frequency domain. The first time-frequency resource pool belongs to a given time interval in the time domain, and the L target time-frequency resource pools respectively belong to a target time interval #1 to a target time interval # L in the time domain. The i is a positive integer not less than 1 and not more than L.
As a sub-embodiment, the first carrier and the target carrier # i are orthogonal in the frequency domain means that: there is no one subcarrier belonging to both the first carrier and the target carrier # i.
As a sub-embodiment, the given time interval occupies a positive integer number of multicarrier symbols.
As a sub-embodiment, the target time interval # i occupies a positive integer number of multicarrier symbols. Wherein i is a positive integer not less than and not more than L.
As a sub-embodiment, the given time interval belongs to a first time window in the time domain, and the target time interval #1 to the target time interval # L belong to the first time window in the time domain.
As a subsidiary embodiment of this sub-embodiment, the duration of said first time window is equal to one of {0.5ms, 1ms }.
As a sub-embodiment, the given time interval belongs to a first time window in the time domain, and the target time interval #1 to the target time interval # L belong to a second time window in the time domain.
As a subsidiary embodiment of this sub-embodiment, the duration of said first time window is equal to one of {0.5ms, 1ms }.
As a sub-embodiment of this sub-embodiment, the duration of the second time window is equal to one of {0.5ms, 1ms }.
As a subsidiary embodiment of this sub-embodiment, said first time window precedes said second time window in the time domain.
As a sub-embodiment, the starting time of the first time-frequency resource pool in the time domain is the same as the starting time of the given time interval in the time domain.
As a sub-embodiment, the starting time of the target time-frequency resource pool # i in the time domain is the same as the starting time of the target time interval # i in the time domain. The i is a positive integer not less than 1 and not more than L.
Example 5
Embodiment 5 illustrates a further schematic diagram of a first time-frequency resource pool and L target time-frequency resource pools. As shown in fig. 5, the first time-frequency resource pool is located in a first carrier in the frequency domain, and the L target time-frequency resource pools are located in a second carrier in the frequency domain. The first carrier and the second carrier are orthogonal in the frequency domain. The first time-frequency resource pool belongs to a given time interval in a time domain, and the L target time-frequency resource pools all belong to a given time-frequency resource set. The given time frequency resource set occupies continuous positive integer number of subcarriers in the frequency domain, and the given time frequency resource set occupies continuous positive integer number of multicarrier symbols in the time domain. The given set of time-frequency resources belongs to a third time interval in the time domain.
As a sub-embodiment, that the first carrier and the second carrier are orthogonal in the frequency domain means that: there is not one subcarrier belonging to both the first carrier and the second carrier.
As a sub-embodiment, the given time interval occupies a positive integer number of multicarrier symbols.
As a sub-embodiment, the third time interval occupies a positive integer number of multicarrier symbols.
As a sub-embodiment, the given time interval and the third time interval both belong to a first time window in the time domain.
As a subsidiary embodiment of this sub-embodiment, the duration of said first time window is equal to one of {0.5ms, 1ms }.
As a sub-embodiment, the given time interval belongs to a first time window in the time domain, and the third time interval belongs to a second time window in the time domain.
As a subsidiary embodiment of this sub-embodiment, the duration of said first time window is equal to one of {0.5ms, 1ms }.
As a sub-embodiment of this sub-embodiment, the duration of the second time window is equal to one of {0.5ms, 1ms }.
As a subsidiary embodiment of this sub-embodiment, said first time window precedes said second time window in the time domain.
As a sub-embodiment, the starting time of the first time-frequency resource pool in the time domain is the same as the starting time of the given time interval in the time domain.
As a sub-embodiment, the start time of the given set of time-frequency resources in the time domain is the same as the start time of the third time interval in the time domain.
Example 6
Embodiment 6 is a block diagram illustrating a processing apparatus in a UE, as shown in fig. 6. In fig. 6, the UE processing apparatus 100 mainly comprises a first receiving module 101, a second receiving module 102 and a first processing module 103.
The first receiving module 101: means for receiving first signaling in a first time-frequency resource pool of a first carrier;
-the second receiving module 102: receiving L target signaling in L target time frequency resource pools;
the first processing module 103: for the first operation L wireless signals.
In embodiment 6, the first signaling and the target signaling are physical layer signaling, respectively. The first operation is a reception or the first operation is a transmission. The L target signaling are respectively used for determining L configuration information, the L configuration information and the L wireless signals are in one-to-one correspondence, and the first signaling is used for determining the L configuration information. The configuration information includes at least one of { time domain resource occupied by the corresponding wireless signal, frequency domain resource occupied by the corresponding wireless signal, MCS, NDI, RV, HARQ process number }. The L target time-frequency resource pools are located on carriers in a target carrier set, the target carrier set comprises K target carriers, and the first carrier is a carrier other than the K target carriers. The L is a positive integer, and the K is a positive integer not greater than the L.
As a sub-embodiment, the first receiving module 101 is further configured to receive a second signaling, where the second signaling is used to determine the first carrier.
As a sub embodiment, the second receiving module 102 is further configured to receive a third signaling. The third signaling is used to determine at least one of { the target set of carriers, time-frequency resources occupied by the L target pools of time-frequency resources }.
As a sub-embodiment, the first processing module 103 is further configured to perform L HARQ-ACK messages in the first instance. The first operation is receive and the first execution is send, or the first operation is send and the first execution is receive. The L HARQ-ACK information is used to determine whether the L wireless signals are decoded correctly, respectively.
Example 7
Embodiment 7 exemplifies a block diagram of a processing device in a base station apparatus, as shown in fig. 7. In fig. 7, the base station device processing apparatus 200 mainly comprises a first sending module 201, a second sending module 202 and a second processing module 203.
The first sending module 201: the first signaling is sent in a first time-frequency resource pool of a first carrier;
the second sending module 202: the system comprises a time frequency resource pool, a target time frequency resource pool and a target signaling pool, wherein the time frequency resource pool is used for sending L target signaling;
the second processing module 203: for a second operation L wireless signals.
In embodiment 7, the first signaling and the target signaling are physical layer signaling, respectively. The second operation is transmitting or the second operation is receiving. The L target signaling are respectively used for determining L configuration information, the L configuration information and the L wireless signals are in one-to-one correspondence, and the first signaling is used for determining the L configuration information. The configuration information includes at least one of { time domain resource occupied by the corresponding wireless signal, frequency domain resource occupied by the corresponding wireless signal, MCS, NDI, RV, HARQ process number }. The L target time-frequency resource pools are located on carriers in a target carrier set, the target carrier set comprises K target carriers, and the first carrier is a carrier other than the K target carriers. The L is a positive integer, and the K is a positive integer not greater than the L.
As a sub-embodiment, the first sending module 201 is further configured to send a second signaling, where the second signaling is used to determine the first carrier.
As a sub embodiment, the second sending module 202 is further configured to send a third signaling. The third signaling is used to determine at least one of { the target set of carriers, time-frequency resources occupied by the L target pools of time-frequency resources }.
As a sub-embodiment, the second processing module 203 is further configured to perform L HARQ-ACK messages. The second operation is a transmit and the second execution is a receive, or the second operation is a receive and the second execution is a transmit. The L HARQ-ACK information is used to determine whether the L wireless signals are decoded correctly, respectively.
It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a hard disk or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented by using one or more integrated circuits. Accordingly, the module units in the above embodiments may be implemented in a hardware form, or may be implemented in a form of software functional modules, and the present application is not limited to any specific form of combination of software and hardware. The UE and the terminal in the present application include, but are not limited to, a mobile phone, a tablet computer, a notebook, a vehicle-mounted Communication device, a wireless sensor, a network card, an internet of things terminal, an RFID terminal, an NB-IOT terminal, a Machine Type Communication (MTC) terminal, an enhanced MTC terminal, a data card, a network card, a vehicle-mounted Communication device, a low-cost mobile phone, a low-cost tablet computer, and other wireless Communication devices. The base station in the present application includes, but is not limited to, a macro cell base station, a micro cell base station, a home base station, a relay base station, and other wireless communication devices.
The above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (20)

1. A method in a user equipment supporting multi-carrier communication, comprising the steps of:
-step a. receiving first signalling in a first pool of time-frequency resources of a first carrier;
-step b. receiving L target signalling in L target time frequency resource pools;
-a step c. first operating L radio signals;
wherein the first signaling and the target signaling are physical layer signaling respectively; the first operation is a receive or the first operation is a transmit; the L target signaling are respectively used for determining L configuration information, the L configuration information and the L wireless signals are in one-to-one correspondence, and the first signaling is used for determining the L configuration information; the configuration information includes at least one of time domain resources occupied by the corresponding wireless signal, frequency domain resources occupied by the corresponding wireless signal, MCS, NDI, RV, or HARQ process number; the L target time-frequency resource pools are positioned on carriers in a target carrier set, the target carrier set comprises K target carriers, and the first carrier is a carrier other than the K target carriers; the L is a positive integer, and the K is a positive integer not greater than the L.
2. The method of claim 1, wherein step a further comprises the steps of:
-step A0. receiving the second signaling;
wherein the second signaling is used to determine the first carrier.
3. The method according to claim 1 or 2, wherein said step B further comprises the steps of:
-step B0. receiving the third signaling;
wherein the third signaling is used to determine at least one of the target set of carriers or time-frequency resources occupied by the L target pools of time-frequency resources.
4. The method according to claim 1, wherein the first signaling is used for determining the target carrier set or the first signaling is used for determining the time-frequency resources occupied by the L target time-frequency resource pools.
5. The method of claim 1, wherein step C further comprises the steps of:
-step c1. first perform L HARQ-ACK information;
wherein the first operation is receive and the first execution is transmit, or the first operation is transmit and the first execution is receive; the L HARQ-ACK information is used to determine whether the L wireless signals are decoded correctly, respectively.
6. A method in a base station supporting multi-carrier communication, comprising the steps of:
-step a. transmitting first signalling in a first pool of time-frequency resources of a first carrier;
step B, sending L target signaling in L target time frequency resource pools;
-step c. a second operation of L radio signals;
wherein the first signaling and the target signaling are physical layer signaling respectively; the second operation is a transmission or the second operation is a reception; the L target signaling are respectively used for determining L configuration information, the L configuration information and the L wireless signals are in one-to-one correspondence, and the first signaling is used for determining the L configuration information; the configuration information includes at least one of time domain resources occupied by the corresponding wireless signal, frequency domain resources occupied by the corresponding wireless signal, MCS, NDI, RV, or HARQ process number; the L target time-frequency resource pools are positioned on carriers in a target carrier set, the target carrier set comprises K target carriers, and the first carrier is a carrier other than the K target carriers; the L is a positive integer, and the K is a positive integer not greater than the L.
7. The method of claim 6, wherein step A further comprises the steps of:
step A0. sending a second signaling;
wherein the second signaling is used to determine the first carrier.
8. The method according to claim 6 or 7, wherein the step B further comprises the steps of:
step B0. sending a third signaling;
wherein the third signaling is used to determine at least one of the target set of carriers or time-frequency resources occupied by the L target pools of time-frequency resources.
9. The method according to claim 6, wherein the first signaling is used for determining the target carrier set or the first signaling is used for determining the time-frequency resources occupied by the L target time-frequency resource pools.
10. The method of claim 6, wherein step C further comprises the steps of:
-step c1. second performing L HARQ-ACK information;
wherein the second operation is a transmit and the second execution is a receive, or the second operation is a receive and the second execution is a transmit; the L HARQ-ACK information is used to determine whether the L wireless signals are decoded correctly, respectively.
11. A user equipment supporting multi-carrier communication, comprising the following modules:
-a first receiving module: means for receiving first signaling in a first time-frequency resource pool of a first carrier;
-a second receiving module: receiving L target signaling in L target time frequency resource pools;
-a first processing module: l wireless signals for a first operation;
wherein the first signaling and the target signaling are physical layer signaling respectively; the first operation is a receive or the first operation is a transmit; the L target signaling are respectively used for determining L configuration information, the L configuration information and the L wireless signals are in one-to-one correspondence, and the first signaling is used for determining the L configuration information; the configuration information includes at least one of time domain resources occupied by the corresponding wireless signal, frequency domain resources occupied by the corresponding wireless signal, MCS, NDI, RV, or HARQ process number; the L target time-frequency resource pools are positioned on carriers in a target carrier set, the target carrier set comprises K target carriers, and the first carrier is a carrier other than the K target carriers; the L is a positive integer, and the K is a positive integer not greater than the L.
12. The UE of claim 11, wherein the first receiving module is further configured to receive a second signaling, and wherein the second signaling is used to determine the first carrier.
13. The UE of claim 11 or 12, wherein the second receiving module is further configured to receive a third signaling; the third signaling is used to determine at least one of the target set of carriers or time-frequency resources occupied by the L target pools of time-frequency resources.
14. The UE of claim 11, wherein the first processing module is further configured to perform L HARQ-ACK information for a first time, wherein the first operation is reception and the first performance is transmission, or wherein the first operation is transmission and the first performance is reception, and wherein the L HARQ-ACK information is used to determine whether the L radio signals are correctly decoded.
15. The UE of claim 11, wherein the first signaling is used to determine the target carrier set or the first signaling is used to determine the time-frequency resources occupied by the L target time-frequency resource pools.
16. A base station device supporting multi-carrier communication, comprising the following modules:
-a first sending module: the first signaling is sent in a first time-frequency resource pool of a first carrier;
-a second sending module: the system comprises a time frequency resource pool, a target time frequency resource pool and a target signaling pool, wherein the time frequency resource pool is used for sending L target signaling;
-a second processing module: for a second operation of the L wireless signals;
wherein the first signaling and the target signaling are physical layer signaling respectively; the second operation is a transmission or the second operation is a reception; the L target signaling are respectively used for determining L configuration information, the L configuration information and the L wireless signals are in one-to-one correspondence, and the first signaling is used for determining the L configuration information; the configuration information includes at least one of time domain resources occupied by the corresponding wireless signal, frequency domain resources occupied by the corresponding wireless signal, MCS, NDI, RV, or HARQ process number; the L target time-frequency resource pools are positioned on carriers in a target carrier set, the target carrier set comprises K target carriers, and the first carrier is a carrier other than the K target carriers; the L is a positive integer, and the K is a positive integer not greater than the L.
17. The base station device of claim 16, wherein the first sending module is further configured to send a second signaling, and wherein the second signaling is used for determining the first carrier.
18. The base station device of claim 16 or 17, wherein the second sending module is further configured to send a third signaling; the third signaling is used to determine the target set of carriers or the third signaling is used to determine the time-frequency resources occupied by the L target pools of time-frequency resources.
19. The base station device of claim 16, wherein the second processing module is further configured to perform L HARQ-ACK information for the second time; the second operation is a send and the second execution is a receive, or the second operation is a receive and the second execution is a send; the L HARQ-ACK information is used to determine whether the L wireless signals are decoded correctly, respectively.
20. The base station device of claim 16, wherein the first signaling is used to determine the target carrier set or the first signaling is used to determine the time-frequency resources occupied by the L target time-frequency resource pools.
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