CN109845159B - Method, device and equipment for configuring HARQ (hybrid automatic repeat request) process - Google Patents
Method, device and equipment for configuring HARQ (hybrid automatic repeat request) process Download PDFInfo
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Abstract
A method, a device and equipment for configuring HARQ process relate to the technical field of communication, the method includes: configuring the HARQ process number n for the terminal; and allocating m HARQ processes in the n HARQ processes to the carrier currently supported by the terminal, wherein n is more than or equal to m and more than or equal to 1, and both n and m are positive integers. Because the network side correspondingly configures the number of HARQ processes for each terminal, each carrier aggregated by the terminal shares the configured HARQ process in a carrier aggregation scene, which is beneficial to reducing the HARQ buffering overhead of the terminal and improving the flexibility of the HARQ process configuration and scheduling; under a non-carrier aggregation scene, a carrier supported by a terminal multiplexes a plurality of different basic parameter sets, and when the basic parameter set supported by the carrier changes, a network side dynamically adjusts the number of the distributed HARQ processes for the carrier, so that the flexibility of HARQ process configuration and scheduling is improved.
Description
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to a method, a device and equipment for configuring a hybrid automatic Repeat reQuest (HARQ) process.
Background
HARQ is a technology formed by combining Forward Error Correction (FEC) and Automatic Repeat reQuest (ARQ). By adopting the HARQ technology, the receiver does not discard the received data but stores the received data and requires the sender to retransmit the data under the condition that the receiver fails to decode the received data, and the receiver combines the retransmitted data with the previously received data and then decodes the data. By the method, a certain diversity gain can exist, the retransmission times are reduced, and the data transmission delay is further reduced.
Data transmission in a Long Term Evolution (LTE) system adopts an HARQ technique. The number of HARQ processes in the terminal is configured by the network side. The number of HARQ processes refers to the number of concurrent HARQ processes. One HARQ process refers to one complete data transmission process. The HARQ process configuration scheme in the LTE system is as follows: the network side configures a fixed number of HARQ processes for carriers supported by the terminal, for example, the fixed number of HARQ processes is 8.
Taking Carrier Aggregation (CA) scenario in LTE system as an example, the related method for configuring HARQ process number at network side is as follows: the network side configures an independent HARQ entity (entity) for each carrier aggregated by the terminal, that is, each carrier aggregated by the terminal has a fixed HARQ process number and an independent HARQ scheduling. The above design is mainly adopted to consider that in the LTE system, each aggregated carrier has the same parameter set (numerology), that is, the same Transmission Time Interval (TTI), and when HARQ operation is performed on each carrier, HARQ may have the same Round Trip delay (RTT). Therefore, HARQ parameters corresponding to each carrier aggregated by the terminal are consistent, for example, a network side configures an HARQ entity including 8 HARQ processes for each carrier aggregated by the terminal.
In the HARQ process configuration scheme provided in the prior art, a network side configures a fixed number of HARQ processes for carriers supported by a terminal, and there is a problem that the flexibility of configuration and scheduling of the HARQ processes is low.
Disclosure of Invention
In order to solve the problem of low flexibility of configuration and scheduling of an HARQ process in the prior art, embodiments of the present invention provide a method, an apparatus, and a device for configuring an HARQ process. The technical scheme is as follows:
in one aspect, an embodiment of the present invention provides a method for configuring an HARQ process, where the method includes:
configuring the HARQ process number n for the terminal;
and allocating m HARQ processes in the n HARQ processes to the carrier currently supported by the terminal, wherein n is more than or equal to m and is more than or equal to 1, and both n and m are positive integers.
In one possible design, the carrier currently supported by the terminal may include multiple carriers aggregated by the terminal.
Optionally, the sum of HARQ process numbers allocated to each carrier aggregated by the terminal is the m, and the HARQ process numbers allocated to at least two carriers in each carrier aggregated by the terminal are the same or different.
Optionally, the allocating m HARQ processes of the n HARQ processes to the carrier currently supported by the terminal includes:
acquiring characteristic information of each carrier aggregated by the terminal;
and allocating m HARQ processes in the n HARQ processes to each carrier aggregated by the terminal according to the characteristic information of each carrier aggregated by the terminal.
Optionally, the characteristic information of the carrier includes at least one of: the basic parameter set adopted by the carrier, the main service type carried by the carrier and the frequency band where the carrier is located.
In one possible design, the number of carriers currently supported by the terminal is 1, and the carriers multiplex multiple different sets of basic parameters, and each set of basic parameter set includes a set of time-frequency resource configuration parameters.
Optionally, the allocating m HARQ processes of the n HARQ processes to the carrier currently supported by the terminal includes:
and allocating m HARQ processes in the n HARQ processes to the carrier currently supported by the terminal according to the basic parameter set currently adopted by the carrier currently supported by the terminal.
In one possible design, the configuring the HARQ process number n for the terminal includes:
acquiring characteristic information of the terminal;
and configuring the HARQ process number n for the terminal according to the characteristic information of the terminal.
Optionally, the characteristic information of the terminal includes at least one of: the terminal comprises the HARQ cache capacity of the terminal, the data processing capacity of the terminal, the number of each carrier aggregated by the terminal, the characteristics of each carrier aggregated by the terminal and the main service type requested by the terminal.
In one possible design, the configuring the HARQ process number n for the terminal includes:
and selecting one candidate HARQ process number from at least one predefined candidate HARQ process number to be configured to the terminal.
In one possible design, after allocating m HARQ processes of the n HARQ processes to the carrier currently supported by the terminal, the method further includes:
and when the current carrier supported by the terminal changes, adjusting the number of HARQ processes allocated to the current carrier supported by the terminal.
Optionally, after the adjusting the number of HARQ processes allocated to the carrier currently supported by the terminal, the method further includes:
and sending Downlink Control Information (DCI) to the terminal, wherein the DCI carries HARQ configuration Information, and the HARQ configuration Information is used for indicating the number of HARQ processes allocated to the current carrier supported by the terminal.
On the other hand, an embodiment of the present invention provides an access network device, where the access network device has a function of implementing the foregoing method example. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above-described functions.
In one possible design, the access network device includes a processor, a transmitter, and a receiver in its structure, and the processor is configured to support the access network device to perform the corresponding functions in the above method. The transmitter and the receiver are used for supporting communication between the access network equipment and the terminal. Further, the access network device may also include a memory for coupling with the processor that stores program instructions and data necessary for the access network device.
In yet another aspect, an embodiment of the present invention provides a computer storage medium for storing computer software instructions for an access network device, which includes a program designed to execute the above aspects.
According to the scheme provided by the embodiment of the invention, the number n of HARQ processes is configured for the terminal, and m HARQ processes in the n HARQ processes are allocated to one or more carriers currently supported by the terminal; the problem of low flexibility of the configuration and scheduling of the HARQ process in the prior art is solved. Because the network side correspondingly configures the number of the HARQ processes for each terminal, under a carrier aggregation scene, each carrier aggregated by the terminal can share the n HARQ processes, and the network side can dynamically adjust the number of the HARQ processes allocated to each carrier aggregated by the terminal, so that the flexibility of the configuration and scheduling of the HARQ processes is improved, and the reduction of the HARQ buffering overhead of the terminal is facilitated; in a non-carrier aggregation scenario, a carrier supported by a terminal may multiplex multiple groups of different basic parameter sets, where the multiple groups of different basic parameter sets can share the n HARQ processes, and when the basic parameter set supported by the carrier changes, a network side can dynamically adjust the number of HARQ processes allocated to the carrier, thereby improving flexibility of HARQ process configuration and scheduling.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of an application scenario provided by one embodiment of the present invention;
fig. 2 is a flowchart of a configuration method of a HARQ process according to an embodiment of the present invention;
fig. 3 is a block diagram of an apparatus for configuring a HARQ process according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an access network device according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
The network architecture and the service scenario described in the embodiment of the present invention are for more clearly illustrating the technical solution of the embodiment of the present invention, and do not limit the technical solution provided in the embodiment of the present invention, and it can be known by those skilled in the art that the technical solution provided in the embodiment of the present invention is also applicable to similar technical problems along with the evolution of the network architecture and the appearance of a new service scenario.
Referring to fig. 1, a schematic diagram of an application scenario provided by an embodiment of the present invention is shown. The application scenario includes: access network equipment 110 and at least one terminal 120.
As shown in fig. 1, the number of the terminals 120 is usually plural, and the plural terminals 120 are located in a cell managed by the access network device 110. The access network device 110 and the terminal 120 communicate with each other via some air interface technology, for example, via cellular technology. The technical scheme described in the embodiment of the invention can be applied to an LTE system and can also be applied to a subsequent evolution system of the LTE system, such as an LTE-A (LTE-Advanced) system, a 5th Generation (5G) system and the like.
In the embodiments of the present invention, the terms "network" and "system" are often used interchangeably, but those skilled in the art can understand the meaning. The terminal according to the embodiments of the present invention may include various handheld devices, vehicle-mounted devices, wearable devices, computing devices, or other processing devices connected to a wireless modem, and various forms of User Equipment (UE), Mobile Stations (MS), terminal devices (terminal), and the like. For convenience of description, the above-mentioned devices are collectively referred to as a terminal. The access network device according to the embodiments of the present invention is a device deployed in a wireless access network to provide a wireless communication function for a terminal, and the access network device is generally called a Base Station (BS). The base stations may include various forms of macro base stations, micro base stations, relay stations, access points, and the like. In systems using different radio access technologies, the names of devices with base station functionality may differ, for example in LTE systems, called evolved node bs (enbs or enodebs). For convenience of description, in the embodiment of the present invention, the above-mentioned apparatus for providing a wireless communication function for a terminal is collectively referred to as an access network device.
Generally, different sets of basic parameters can be distinguished by using different subcarrier spacings, for example, the subcarrier spacings corresponding to the different sets of basic parameters are respectively 15kHz, 30kHz, 60kHz, 120kHz, etc. for example, the set of basic parameters corresponding to 15kHz can be used as a reference set of basic parameters, and in the time domain, a 1ms subframe (subframe) includes two slots (slots), each slot includes 7 or 14 Orthogonal Frequency Division Multiplexing (OFDM) symbols (to be further discussed and determined by the relevant standards organization), in the Frequency domain, one Resource Block (RB) includes 12 subcarriers, and the other set of basic parameters can take a value of 15kHz spacing × 2n(n is a non-negative integer), and in the time domain, one subframe includes 2 slots whose number is equal to the number of slots corresponding to the reference base parameter setnIn the frequency domain, one resource block still contains 12 subcarriers. For example, when n is 1, the subcarrier spacing corresponding to the basic parameter set may be calculated to be 30kHz, and one subframe of the basic parameter set includes 4 slots.
For the case that the same carrier multiplexes multiple different sets of basic parameters, the corresponding Multiplexing mode may be a Time Division Multiplexing (TDM) mode or a Frequency Division Multiplexing (FDM) mode. The time division multiplexing method refers to multiplexing different basic parameter sets in a time domain, that is, using different basic parameter sets in different time periods. The frequency division multiplexing mode refers to that different basic parameter sets are multiplexed in a frequency domain, that is, different basic parameter sets are used in different frequency bands.
In the embodiment of the invention, the network side correspondingly configures an independent HARQ entity for each terminal, the HARQ entity comprises n HARQ processes, and n is a positive integer. In a carrier aggregation scenario, each carrier aggregated by the terminal can share the n HARQ processes, and the network side can dynamically adjust the number of the allocated HARQ processes for each carrier aggregated by the terminal, thereby improving the flexibility of HARQ process configuration and scheduling. In a non-carrier aggregation scenario, a carrier supported by a terminal may multiplex multiple groups of different basic parameter sets, where the multiple groups of different basic parameter sets can share the n HARQ processes, and when the basic parameter set supported by the carrier changes, a network side can dynamically adjust the number of HARQ processes allocated to the carrier, thereby improving flexibility of HARQ process configuration and scheduling.
The embodiments of the present invention will be described in further detail below based on the common aspects related to the embodiments of the present invention described above.
Referring to fig. 2, a flowchart of a configuration method of a HARQ process according to an embodiment of the present invention is shown. The method may include the steps of:
And the access network equipment configures the HARQ process number for the terminal. In this embodiment, the number of HARQ processes configured for the terminal is denoted by n. The access network equipment configures a HARQ entity for the terminal, wherein the HARQ entity comprises n HARQ processes. In a carrier aggregation scenario, each carrier aggregated by the terminal can share the n HARQ processes. In a non-carrier aggregation scenario, one carrier supported by the terminal may multiplex multiple different sets of basic parameters, and the multiple different sets of basic parameters can share the n HARQ processes.
The HARQ processes included in the HARQ entity configured for the terminal as described above may be referred to as a common HARQ process. For a carrier aggregation scenario, a common HARQ process refers to a HARQ process shared by each carrier aggregated by a terminal. For non-carrier aggregation scenarios, a common HARQ process refers to a HARQ process that is common to multiple different sets of base parameters supported by the carriers. Accordingly, the access network device configures the terminal with the number of common HARQ processes, where the number of common HARQ processes refers to the number of common HARQ processes, and is denoted by n, for example.
Optionally, the access network device configures, for the terminal, a HARQ process number during or after establishing a Radio Resource Control (RRC) connection with the terminal.
Optionally, this step includes several substeps as follows:
1. acquiring characteristic information of a terminal;
2. and configuring the HARQ process number n for the terminal according to the characteristic information of the terminal.
The feature information of the terminal refers to information indicating a feature of the terminal. Illustratively, the characteristic information of the terminal includes at least one of: the terminal comprises the HARQ cache capacity of the terminal, the data processing capacity of the terminal, the number of each carrier aggregated by the terminal, the characteristics of each carrier aggregated by the terminal and the main service type requested by the terminal.
Optionally, the access network device obtains the characteristic information of the terminal during or after establishing the RRC connection with the terminal. The characteristic information of the terminal can be actively reported to the access network equipment by the terminal, or reported after the access network equipment sends an instruction to the terminal, or automatically acquired by the access network equipment according to the configuration information of the communication system.
In one example, the characteristic information of the terminal is taken as the HARQ buffer capacity of the terminal. The HARQ buffer capacity of the terminal refers to a maximum buffer capacity corresponding to the HARQ buffer of the terminal. And the access network equipment determines the number n of the HARQ processes configured for the terminal according to the HARQ cache capacity of the terminal and the cache capacity required by each HARQ process. For example, the HARQ buffer capacity of the terminal is M (bits), the buffer capacity required by each HARQ process is N (bits), and the number N of HARQ processes configured for the terminal by the access network device may be [ M/N ]; wherein the symbol "[ ]" means rounding down. The above example only takes the example that the buffer capacity required by each HARQ process is the same, and in practical cases, the buffer capacity required by each HARQ process may be different.
In another example, the characteristic information of the terminal is taken as the data processing capability of the terminal. The data processing capability of the terminal refers to the minimum processing time from the time when the terminal receives the downlink data sent by the access network equipment to the time when the terminal feeds back a reception success or failure response to the access network equipment. And the access network equipment determines the number n of HARQ processes configured for the terminal according to the data processing capacity of the terminal and the load state of the access network equipment. For example, the minimum processing time determined according to the data processing capability of the terminal is a (ms), the retransmission processing time determined according to the load state of the access network device is b (ms), and the access network device determines the HARQ process number n configured for the terminal according to the minimum processing time a and the retransmission processing time b. Illustratively, the number of HARQ processes configured for the terminal, n ═ a + b)/TTI, where TTI denotes the TTI corresponding to the carriers aggregated by the terminal.
In still another example, the characteristic information of the terminal includes the number of individual carriers aggregated by the terminal and the characteristics of the individual carriers aggregated by the terminal. For each carrier aggregated by the terminal, the access network equipment determines the number of HARQ processes configured corresponding to the carrier according to the characteristics of the carrier, and adds the number of HARQ processes configured corresponding to each carrier to obtain the number n of HARQ processes configured for the terminal. Wherein the characteristics of the carrier include at least one of: TTI corresponding to the carrier wave and the service type carried by the carrier wave. For example, the number of carriers aggregated by the terminal is 2, a TTI corresponding to one carrier is 0.25ms, the number of HARQ processes correspondingly configured by the access network device for the carrier is 3, a TTI corresponding to another carrier is 1ms, the number of HARQ processes correspondingly configured by the access network device for the carrier is 8, and then the number of HARQ processes configured by the access network device for the terminal is 11.
In another example, the feature information of the terminal includes a main service type requested by the terminal. Illustratively, the traffic types include enhanced Mobile Broadband (eMBB) traffic, massive Machine-type Communication (mtc) traffic, high-reliability Low-Latency Communication (Ultra-relay and Low Latency Communication, URLLC) traffic, and the like. When the service type requested by the terminal is only one, the service type is the main service type requested by the terminal; when the service types requested by the terminal are multiple, the service type with the largest service volume in the multiple service types is used as the main service type requested by the terminal. For example, if the main service type requested by the terminal is a delay sensitive service (e.g., URLLC service), the access network device configures a smaller number of HARQ processes for the terminal; if the main service type requested by the terminal is a delay tolerant service (e.g., an eMBB service), the access network device configures a larger number of HARQ processes for the terminal. In practical application, the access network device may pre-store a first corresponding relationship, where the first corresponding relationship includes corresponding relationships between different service types and different HARQ process numbers, and the access network device queries the first corresponding relationship to determine the HARQ process number configured for the terminal.
The foregoing describes that the access network device configures HARQ process number n for the terminal according to the characteristic information of the terminal. In other possible embodiments, at least one number of candidate HARQ processes may be predefined (Pre-determined) in the access network equipment. For example, the access network device configures a candidate HARQ process number set, where the set includes several candidate HARQ process numbers such as 6, 8, 10, 12, etc. The access network equipment selects one candidate HARQ process number from at least one predefined candidate HARQ process number (namely the candidate HARQ process number set) to be configured to the terminal.
In addition, the access network device may send the terminal the configured HARQ process number n through DCI, or may send the terminal the configured HARQ process number n through a high-layer signaling.
For a carrier aggregation scenario, the carrier currently supported by the terminal includes multiple carriers currently aggregated by the terminal. After configuring the number of HARQ processes for the terminal, the access network device initializes and configures a corresponding number of HARQ processes for each carrier aggregated by the terminal. And the access network equipment allocates m HARQ processes in the n HARQ processes to each carrier aggregated by the terminal. That is, the sum of the number of HARQ processes allocated to each carrier aggregated by the terminal is m. In addition, in each carrier aggregated by the terminal, the number of HARQ processes allocated to at least two carriers is the same or different. For example, the number of HARQ processes configured by the access network device for the terminal is 20, the number of carriers aggregated by the terminal is 3, and the number of HARQ processes allocated by the access network device for the 3 carriers is 3, 8, and 8, respectively.
Optionally, when the HARQ process is initially allocated to each carrier aggregated by the terminal, at least one HARQ process is allocated to each carrier.
Optionally, for the carrier aggregation scenario, step 202 includes several sub-steps as follows:
1. acquiring characteristic information of each carrier aggregated by a terminal;
2. and according to the characteristic information of each carrier aggregated by the terminal, allocating m HARQ processes in the n HARQ processes to each carrier aggregated by the terminal.
The characteristic information of the carrier refers to information indicating characteristics of the carrier. Illustratively, the characteristic information of the carrier wave includes at least one of: the basic parameter set adopted by the carrier, the main service type carried by the carrier and the frequency band where the carrier is located. The characteristic information of each carrier aggregated by the terminal can be actively reported to the access network equipment by the terminal, or can be reported after the access network equipment sends an instruction to the terminal, or can be automatically acquired by the access network equipment according to the configuration information of the communication system.
In one example, the characteristic information of the carrier is taken as an example of a basic parameter set adopted by the carrier. The basic parameter set adopted by the carrier includes parameters such as TTI, subcarrier interval, number of symbols contained in each TTI, and the like. Taking TTI as an example, for each carrier aggregated by the terminal, the access network device selects at least one HARQ process from the n HARQ processes to allocate to the carrier according to the TTI corresponding to the carrier. Wherein, the HARQ process number distributed for the carrier wave and the TTI corresponding to the carrier wave are in positive correlation. That is, the longer the TTI corresponding to the carrier is, the more HARQ processes are allocated to the carrier; the shorter the TTI corresponding to the carrier, the fewer the number of HARQ processes allocated to the carrier. In practical application, the access network device may pre-store a second corresponding relationship, where the second corresponding relationship includes corresponding relationships between different TTIs and different HARQ process numbers, and the access network device queries the second corresponding relationship to determine the HARQ process number allocated to each carrier of the terminal.
In another example, the characteristic information of the carrier is taken as the main service type carried by the carrier. When the service type carried by the carrier is only one, the service type is the main service type carried by the carrier; when the service types carried by the carrier are multiple, the service type with the largest service volume in the multiple service types is used as the main service type carried by the carrier. For each carrier aggregated by the terminal, the access network device selects at least one HARQ process from the n HARQ processes to allocate to the carrier according to the main service type carried by the carrier. For example, if the main service type carried by the carrier is a delay sensitive service, the access network device allocates a smaller number of HARQ processes to the carrier; if the main service type carried by the carrier is delay tolerant service, the access network equipment allocates more HARQ process numbers for the carrier. In practical application, the access network device may pre-store a third corresponding relationship, where the third corresponding relationship includes corresponding relationships between different service types and different HARQ process numbers, and the access network device queries the third corresponding relationship to determine the HARQ process number allocated to each carrier of the terminal.
In another example, the characteristic information of the carrier is taken as the frequency band where the carrier is located. For each carrier aggregated by the terminal, the access network equipment selects at least one HARQ process from the n HARQ processes to allocate to the carrier according to the frequency band where the carrier is located. In general, the frequency size corresponding to the frequency band in which the carrier is located and the TTI corresponding to the carrier are in a negative correlation, and the number of HARQ processes allocated to the carrier and the TTI corresponding to the carrier are in a positive correlation. That is, the smaller the frequency corresponding to the frequency band of the carrier, the longer the TTI corresponding to the carrier, the more HARQ processes are allocated to the carrier; the larger the frequency size corresponding to the frequency band in which the carrier is located, the shorter the TTI corresponding to the carrier, and the smaller the number of HARQ processes allocated to the carrier. In practical application, the access network device may pre-store a fourth corresponding relationship, where the fourth corresponding relationship includes a corresponding relationship between different frequency bands and different HARQ process numbers, and the access network device queries the fourth corresponding relationship to determine the HARQ process number allocated to each carrier of the terminal.
In the foregoing, for the carrier aggregation scenario, the access network device configures, according to the characteristic information of each carrier aggregated by the terminal, a corresponding HARQ process number for each carrier. In other possible embodiments, when initially configuring the number of HARQ processes for each carrier aggregated by the terminal, the access network device averagely allocates m HARQ processes of the n HARQ processes to each carrier aggregated by the terminal.
For a non-carrier aggregation scenario, the number of carriers currently supported by the terminal is 1, and the carriers multiplex multiple different sets of basic parameters. And the access network equipment allocates m HARQ processes in the n HARQ processes to the carrier according to the basic parameter set currently adopted by the carrier.
Taking TTI as an example, the access network device selects at least one HARQ process from the n HARQ processes to allocate to the carrier according to the TTI corresponding to the carrier. Wherein, the HARQ process number distributed for the carrier wave and the TTI corresponding to the carrier wave are in positive correlation. That is, the longer the TTI corresponding to the carrier is, the more HARQ processes are allocated to the carrier; the shorter the TTI corresponding to the carrier, the fewer the number of HARQ processes allocated to the carrier. In practical application, the access network device may pre-store a second corresponding relationship, where the second corresponding relationship includes corresponding relationships between different TTIs and different HARQ process numbers, and the access network device queries the second corresponding relationship to determine the HARQ process number allocated to the carrier.
The HARQ process configured for the carrier may be referred to as a shared HARQ process, where the shared HARQ process is a HARQ process dynamically configured for the carrier, and the shared HARQ process corresponding to the carrier may dynamically change according to a situation. Correspondingly, the access network device configures the number of shared HARQ processes for the carrier, where the number of shared HARQ processes refers to the number of shared HARQ processes, and the number of shared HARQ processes corresponding to the carrier may dynamically change according to the situation.
In addition, the access network device may send, to the terminal, the HARQ process number configured for the carrier initialization currently supported by the terminal through DCI, or may send, to the terminal, the HARQ process number configured for the carrier initialization currently supported by the terminal through a high-layer signaling.
After the access network device initializes and configures the corresponding HARQ process number for the current supported carrier of the terminal, the access network device dynamically adjusts the HARQ process number allocated to the current supported carrier of the terminal according to the actual situation. The step 102 further includes the following steps: when the carrier currently supported by the terminal changes, the access network equipment adjusts the number of HARQ processes allocated to the carrier currently supported by the terminal.
For the carrier aggregation scenario, the following examples are presented for illustration.
In one example, when the characteristics of the carriers aggregated by the terminal change, the access network device adjusts the number of HARQ processes allocated to each carrier aggregated by the terminal. The characteristics of the carrier wave include at least one of: the basic parameter set adopted by the carrier, the main service type carried by the carrier and the frequency band where the carrier is located. For example, when the main service type carried by a certain carrier is changed from delay sensitive service to delay tolerant service, the access network device increases the number of HARQ processes allocated to the carrier. For another example, when the main service type carried by a certain carrier is changed from delay tolerant service to delay sensitive service, the access network device reduces the number of HARQ processes allocated to the carrier. For another example, when the TTI corresponding to a certain carrier is shortened, the access network device decreases the number of HARQ processes allocated to the carrier.
In another example, when the number of carriers aggregated by the terminal changes, the access network device adjusts the number of HARQ processes allocated to each carrier aggregated by the terminal. And for the newly added aggregated carrier of the terminal, the access network equipment allocates HARQ process number for the carrier. For newly adding aggregated carriers to the terminal, if the HARQ processes configured for the terminal have unallocated HARQ processes, selecting at least one HARQ process from the unallocated HARQ processes to allocate to the carrier; and if no unallocated HARQ process exists in the HARQ processes configured for the terminal, selecting at least one HARQ process from the HARQ processes allocated to other carriers to allocate to the carrier. For the carriers with the aggregated reduction of the terminal, the access network device may allocate the HARQ process allocated to the carrier to other carriers, and may also reclaim the HARQ process allocated to the carrier for subsequent allocation.
For the non-carrier aggregation scenario, the description is presented by the following example.
When the basic parameter set adopted by the current carrier supported by the terminal changes, the access network equipment adjusts the number of HARQ processes allocated to the carrier. Taking TTI as an example, when TTI corresponding to the carrier becomes short, the access network device reduces the number of HARQ processes allocated to the carrier; and when the TTI side corresponding to the carrier is long, the access network equipment increases the number of HARQ processes allocated to the carrier.
After adjusting the number of HARQ processes allocated to the current carrier supported by the terminal, the access network device sends HARQ configuration information to the terminal, where the HARQ configuration information is used to indicate the number of HARQ processes allocated to the current carrier supported by the terminal. Optionally, the access network device sends HARQ configuration information to the terminal through DCI. That is, the access network device sends DCI to the terminal, where the DCI carries the HARQ configuration information.
In summary, in the method provided in the embodiment of the present invention, the HARQ process number n is configured for the terminal, and m HARQ processes of the n HARQ processes are allocated to one or more carriers currently supported by the terminal; the problem of low flexibility of the configuration and scheduling of the HARQ process in the prior art is solved. Because the network side correspondingly configures the number of the HARQ processes for each terminal, under a carrier aggregation scene, each carrier aggregated by the terminal can share the n HARQ processes, and the network side can dynamically adjust the number of the HARQ processes allocated to each carrier aggregated by the terminal, so that the flexibility of the configuration and scheduling of the HARQ processes is improved, and the reduction of the HARQ buffering overhead of the terminal is facilitated; in a non-carrier aggregation scenario, a carrier supported by a terminal may multiplex multiple groups of different basic parameter sets, where the multiple groups of different basic parameter sets can share the n HARQ processes, and when the basic parameter set supported by the carrier changes, a network side can dynamically adjust the number of HARQ processes allocated to the carrier, thereby improving flexibility of HARQ process configuration and scheduling.
In addition, the number of HARQ processes allocated to the current carrier supported by the terminal is dynamically adjusted when the current carrier supported by the terminal changes, so that the HARQ processes are allocated and used as required, and the scheduling flexibility of the HARQ processes is fully improved.
In addition, the HARQ process number is configured for the terminal according to the characteristic information of the terminal, and the HARQ process number is distributed to each carrier aggregated by the terminal according to the characteristic information of each carrier aggregated by the terminal, so that the distribution of the HARQ process number is more accurate, and the actual requirement is better met.
It should be noted that the technical solution provided in the embodiment of the present invention is applicable to configuration of an uplink HARQ process, and is also applicable to configuration of a downlink HARQ process.
The following are embodiments of the apparatus of the present invention that may be used to perform embodiments of the method of the present invention. For details which are not disclosed in the embodiments of the apparatus of the present invention, reference is made to the embodiments of the method of the present invention.
Referring to fig. 3, a block diagram of an apparatus for configuring a HARQ process according to an embodiment of the present invention is shown. The device has the functions of realizing the method examples, and the functions can be realized by hardware or by hardware executing corresponding software. The apparatus may include: a processing unit 310.
A processing unit 310, configured to configure HARQ process number n for the terminal.
The processing unit 310 is further configured to allocate m HARQ processes of the n HARQ processes to a carrier currently supported by the terminal, where n is greater than or equal to m is greater than or equal to 1, and n and m are positive integers.
In summary, the apparatus provided in the embodiment of the present invention configures a HARQ process number n for a terminal, and allocates m HARQ processes of the n HARQ processes to one or more carriers currently supported by the terminal; the problem of low flexibility of the configuration and scheduling of the HARQ process in the prior art is solved. Because the network side correspondingly configures the number of the HARQ processes for each terminal, under a carrier aggregation scene, each carrier aggregated by the terminal can share the n HARQ processes, and the network side can dynamically adjust the number of the HARQ processes allocated to each carrier aggregated by the terminal, so that the flexibility of the configuration and scheduling of the HARQ processes is improved, and the reduction of the HARQ buffering overhead of the terminal is facilitated; in a non-carrier aggregation scenario, a carrier supported by a terminal may multiplex multiple groups of different basic parameter sets, where the multiple groups of different basic parameter sets can share the n HARQ processes, and when the basic parameter set supported by the carrier changes, a network side can dynamically adjust the number of HARQ processes allocated to the carrier, thereby improving flexibility of HARQ process configuration and scheduling.
In an optional embodiment provided based on the embodiment shown in fig. 3, the carrier currently supported by the terminal includes multiple carriers aggregated by the terminal.
Optionally, the sum of HARQ process numbers allocated to each carrier aggregated by the terminal is the m, and the HARQ process numbers allocated to at least two carriers in each carrier aggregated by the terminal are the same or different.
Optionally, the processing unit 310 is configured to: acquiring characteristic information of each carrier aggregated by the terminal; and allocating m HARQ processes in the n HARQ processes to each carrier aggregated by the terminal according to the characteristic information of each carrier aggregated by the terminal.
Optionally, the characteristic information of the carrier includes at least one of: the basic parameter set adopted by the carrier, the main service type carried by the carrier and the frequency band where the carrier is located.
In another optional embodiment provided based on the embodiment shown in fig. 3, the number of carriers currently supported by the terminal is 1, and the carriers multiplex multiple different sets of basic parameter sets, each set of basic parameter sets including a set of time-frequency resource configuration parameters.
Optionally, the processing unit 310 is configured to: and allocating m HARQ processes in the n HARQ processes to the carrier currently supported by the terminal according to the basic parameter set currently adopted by the carrier currently supported by the terminal.
In another alternative embodiment provided based on the embodiment shown in fig. 3, the processing unit 310 is configured to: acquiring characteristic information of the terminal; and configuring the HARQ process number n for the terminal according to the characteristic information of the terminal.
Optionally, the characteristic information of the terminal includes at least one of: the terminal comprises the HARQ cache capacity of the terminal, the data processing capacity of the terminal, the number of each carrier aggregated by the terminal, the characteristics of each carrier aggregated by the terminal and the main service type requested by the terminal.
In another alternative embodiment provided based on the embodiment shown in fig. 3, the processing unit 310 is configured to: and selecting one candidate HARQ process number from at least one predefined candidate HARQ process number to be configured to the terminal.
In another optional embodiment provided based on the embodiment shown in fig. 3, the processing unit 310 is further configured to adjust the number of HARQ processes allocated to the carrier currently supported by the terminal when the carrier currently supported by the terminal changes.
In another alternative embodiment provided based on the embodiment shown in fig. 3, as shown in fig. 3, the apparatus further includes: a sending unit 320.
A sending unit 320, configured to send DCI to the terminal, where the DCI carries HARQ configuration information, and the HARQ configuration information is used to indicate a HARQ process number allocated to a carrier currently supported by the terminal.
It should be noted that: in the above embodiment, when the device implements the functions thereof, only the division of the functional modules is illustrated, and in practical applications, the functions may be distributed by different functional modules according to needs, that is, the internal structure of the device may be divided into different functional modules to implement all or part of the functions described above. In addition, the apparatus and method embodiments provided by the above embodiments belong to the same concept, and specific implementation processes thereof are described in the method embodiments for details, which are not described herein again.
The above-mentioned scheme provided by the embodiment of the present invention is introduced mainly from the point of interaction between the access network device and the terminal. It is understood that the access network device and the terminal, in order to implement the above functions, include corresponding hardware structures and/or software modules for executing the respective functions. The elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein may be embodied in hardware or in a combination of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present teachings.
Referring to fig. 4, a schematic structural diagram of an access network device according to an embodiment of the present invention is shown.
The access network device 800 includes a transmitter/receiver 801 and a processor 802. The processor 802 may also be a controller, and is shown as "controller/processor 802" in fig. 8. The transmitter/receiver 801 is used to support information transceiving between the access network device and the terminal in the above embodiments, and to support radio communication between the terminal and other terminals. The processor 802 performs various functions for communicating with the terminals. In the uplink, uplink signals from the terminal are received via the antenna, demodulated by the receiver 801 (e.g., to demodulate high frequency signals to baseband signals), and further processed by the processor 802 to recover traffic data and signaling information sent by the terminal. On the downlink, traffic data and signaling messages are processed by processor 802 and modulated (e.g., by modulating a baseband signal to a high frequency signal) by transmitter 801 to generate a downlink signal, which is transmitted via the antenna to the terminals. It is noted that the above-described demodulation or modulation functions can also be performed by the processor 802. For example, the processor 802 is further configured to perform the steps of the method embodiments described above on the access network device side, and/or other steps of the technical solutions described in the embodiments of the present invention.
Further, the access network device 800 may also include a memory 803, the memory 803 being used to store program codes and data for the access network device 800. The access network device may further include a communication unit 804. The communication unit 804 is configured to support the access network device to communicate with other network entities (e.g., network devices in a core network, etc.). For example, in the LTE system, the communication unit 804 may be an S1-U interface for supporting an access network device to communicate with a Serving Gateway (S-GW); alternatively, the communication unit 804 may also be an S1-MME interface, configured to support the access network device to communicate with a Mobility Management Entity (MME).
It will be appreciated that fig. 8 merely illustrates a simplified design of the access network device 800. In practical applications, the access network device 800 may include any number of transmitters, receivers, processors, controllers, memories, communication units, etc., and all access network devices that may implement the embodiments of the present invention are within the scope of the embodiments of the present invention.
Referring to fig. 5, a schematic structural diagram of a terminal according to an embodiment of the present invention is shown.
The terminal 500 comprises a transmitter 501, a receiver 502 and a processor 503. The processor 503 may also be a controller, and is denoted as "controller/processor 503" in fig. 5. Optionally, the terminal 500 may further include a modem processor 505, wherein the modem processor 505 may include an encoder 506, a modulator 507, a decoder 508 and a demodulator 509.
In one example, the transmitter 501 conditions (e.g., converts to analog, filters, amplifies, and frequency upconverts, etc.) the output samples and generates an uplink signal, which is transmitted via an antenna to the access network equipment described in the embodiments above. On the downlink, the antenna receives the downlink signal transmitted by the access network device in the above embodiment. Receiver 502 conditions (e.g., filters, amplifies, downconverts, and digitizes, etc.) the received signal from the antenna and provides input samples. In modem processor 505, an encoder 506 receives traffic data and signaling messages to be sent on the uplink and processes (e.g., formats, encodes, and interleaves) the traffic data and signaling messages. A modulator 507 further processes (e.g., symbol maps and modulates) the encoded traffic data and signaling messages and provides output samples. A demodulator 509 processes (e.g., demodulates) the input samples and provides symbol estimates. A decoder 508 processes (e.g., deinterleaves and decodes) the symbol estimates and provides decoded data and signaling messages for transmission to terminal 500. The encoder 506, modulator 507, demodulator 509, and decoder 508 may be implemented by a combined modem processor 505. These elements are processed in accordance with the radio access technology employed by the radio access network (e.g., the access technologies of LTE and other evolved systems). It should be noted that, when the terminal 500 does not include the modem processor 505, the above-mentioned functions of the modem processor 505 can be performed by the processor 503.
The processor 503 controls and manages the operation of the terminal 500, and is configured to execute the processing procedure performed by the terminal 500 in the embodiment of the present invention. For example, the processor 503 is further configured to perform the steps of the terminal side in the above-mentioned method embodiments, and/or other steps of the technical solutions described in the embodiments of the present invention.
Further, terminal 500 can also include a memory 504, memory 504 for storing program codes and data for terminal 500.
The processor for executing the functions of the access network device or the terminal according to the embodiment of the present invention may be a Central Processing Unit (CPU), a general purpose processor, a Digital Signal Processor (DSP), an Application-Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or execute the various illustrative logical blocks, modules, and circuits described in connection with the embodiment disclosure. The processor may also be a combination of computing functions, e.g., comprising one or more microprocessors, DSPs, and microprocessors, among others.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied in hardware or in software executed by a processor. The software instructions may be comprised of corresponding software modules that may be stored in Random Access Memory (RAM), flash Memory, Read Only Memory (ROM), Erasable Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), registers, a hard disk, a removable disk, a compact disc Read Only Memory (CD-ROM), or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an ASIC. In addition, the ASIC may reside in an access network device or terminal. Of course, the processor and the storage medium may reside as discrete components in an access network device or terminal.
Those skilled in the art will recognize that, in one or more of the examples described above, the functions described in connection with the embodiments of the invention may be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.
An embodiment of the present invention further provides a computer storage medium, configured to store the computer software instruction for the access network device, where the computer software instruction includes a program designed to execute the method for configuring an HARQ process on the access network device side.
It should be understood that reference to "a plurality" herein means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The above description is only exemplary of the present invention and should not be taken as limiting the invention, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (36)
1. A method for configuring hybrid automatic repeat request (HARQ) process, the method comprising:
configuring the HARQ process number n for the terminal; under a carrier aggregation scene, each carrier aggregated by the terminal can share n HARQ processes; under a non-carrier aggregation scene, one carrier supported by the terminal can multiplex a plurality of groups of different basic parameter sets, and the plurality of groups of different basic parameter sets can share n HARQ processes;
according to the characteristic information of each carrier aggregated by the terminal, allocating m HARQ processes in the n HARQ processes to each carrier aggregated by the terminal; or, according to the basic parameter set currently adopted by the carrier currently supported by the terminal, allocating m HARQ processes of the n HARQ processes to the carrier currently supported by the terminal; wherein n is more than or equal to m and more than or equal to 1, and n and m are positive integers.
2. The method of claim 1, wherein the carrier currently supported by the terminal comprises a plurality of carriers aggregated by the terminal.
3. The method according to claim 2, wherein the sum of the number of HARQ processes allocated to each carrier aggregated by the terminal is m, and the number of HARQ processes allocated to at least two carriers in each carrier aggregated by the terminal is the same or different.
4. The method according to claim 2, wherein the allocating m HARQ processes of the n HARQ processes to each carrier of the terminal aggregation according to the characteristic information of each carrier of the terminal aggregation comprises:
acquiring characteristic information of each carrier aggregated by the terminal;
and allocating m HARQ processes in the n HARQ processes to each carrier aggregated by the terminal according to the characteristic information of each carrier aggregated by the terminal.
5. The method of claim 4, wherein the characteristic information of the carrier comprises at least one of the following: the basic parameter set adopted by the carrier, the main service type carried by the carrier and the frequency band where the carrier is located.
6. The method of claim 1, wherein the number of carriers currently supported by the terminal is 1, and wherein the carriers multiplex multiple different sets of basic parameter sets, and each set of basic parameter sets comprises a set of time-frequency resource configuration parameters.
7. The method according to claim 6, wherein said allocating m HARQ processes of the n HARQ processes to the carrier currently supported by the terminal according to the base parameter set currently adopted by the carrier currently supported by the terminal comprises:
and under the condition that the number of the carriers currently supported by the terminal is 1, allocating m HARQ processes in the n HARQ processes to the carriers currently supported by the terminal according to a basic parameter set currently adopted by the carriers currently supported by the terminal.
8. The method according to any of claims 1 to 7, wherein the configuring the terminal with the number of HARQ processes n comprises:
acquiring characteristic information of the terminal;
and configuring the HARQ process number n for the terminal according to the characteristic information of the terminal.
9. The method according to claim 8, wherein the characteristic information of the terminal comprises at least one of the following: the terminal comprises the HARQ cache capacity of the terminal, the data processing capacity of the terminal, the number of each carrier aggregated by the terminal, the characteristics of each carrier aggregated by the terminal and the main service type requested by the terminal.
10. The method according to any of claims 1 to 7, wherein the configuring the terminal with the number of HARQ processes n comprises:
and selecting one candidate HARQ process number from at least one predefined candidate HARQ process number to be configured to the terminal.
11. The method according to any of claims 1 to 7, wherein after said allocating m of said n HARQ processes to the carriers currently supported by said terminal, further comprising:
and when the current carrier supported by the terminal changes, adjusting the number of HARQ processes allocated to the current carrier supported by the terminal.
12. The method of claim 11, wherein after the adjusting the number of HARQ processes allocated for the carrier currently supported by the terminal, further comprising:
and sending downlink control information DCI to the terminal, wherein the DCI carries HARQ configuration information, and the HARQ configuration information is used for indicating the number of HARQ processes allocated to the current carrier supported by the terminal.
13. An apparatus for configuring a hybrid automatic repeat request (HARQ) process, the apparatus comprising:
the processing unit is used for configuring the HARQ process number n for the terminal; under a carrier aggregation scene, each carrier aggregated by the terminal can share n HARQ processes; under a non-carrier aggregation scene, one carrier supported by the terminal can multiplex a plurality of groups of different basic parameter sets, and the plurality of groups of different basic parameter sets can share n HARQ processes;
the processing unit is further configured to allocate m HARQ processes of the n HARQ processes to each carrier aggregated by the terminal according to the characteristic information of each carrier aggregated by the terminal; or, according to the basic parameter set currently adopted by the carrier currently supported by the terminal, allocating m HARQ processes of the n HARQ processes to the carrier currently supported by the terminal; wherein n is more than or equal to m and more than or equal to 1, and n and m are positive integers.
14. The apparatus of claim 13, wherein the carrier currently supported by the terminal comprises a plurality of carriers aggregated by the terminal.
15. The apparatus according to claim 14, wherein the sum of the HARQ process numbers allocated to the carriers aggregated by the terminal is m, and there are at least two carriers with the same or different HARQ process numbers allocated to the carriers aggregated by the terminal.
16. The apparatus of claim 14, wherein the processing unit is configured to:
acquiring characteristic information of each carrier aggregated by the terminal;
and allocating m HARQ processes in the n HARQ processes to each carrier aggregated by the terminal according to the characteristic information of each carrier aggregated by the terminal.
17. The apparatus of claim 16, wherein the characteristic information of the carrier comprises at least one of: the basic parameter set adopted by the carrier, the main service type carried by the carrier and the frequency band where the carrier is located.
18. The apparatus of claim 13, wherein the number of carriers currently supported by the terminal is 1, and wherein the carriers multiplex multiple different sets of basic parameter sets, and each set of basic parameter sets comprises a set of time-frequency resource configuration parameters.
19. The apparatus of claim 18, wherein the processing unit is configured to:
and under the condition that the number of the carriers currently supported by the terminal is 1, allocating m HARQ processes in the n HARQ processes to the carriers currently supported by the terminal according to a basic parameter set currently adopted by the carriers currently supported by the terminal.
20. The apparatus according to any one of claims 13 to 19, wherein the processing unit is configured to:
acquiring characteristic information of the terminal;
and configuring the HARQ process number n for the terminal according to the characteristic information of the terminal.
21. The apparatus of claim 20, wherein the characteristic information of the terminal comprises at least one of: the terminal comprises the HARQ cache capacity of the terminal, the data processing capacity of the terminal, the number of each carrier aggregated by the terminal, the characteristics of each carrier aggregated by the terminal and the main service type requested by the terminal.
22. The apparatus according to any one of claims 13 to 19, wherein the processing unit is configured to:
and selecting one candidate HARQ process number from at least one predefined candidate HARQ process number to be configured to the terminal.
23. The apparatus of any one of claims 13 to 19,
the processing unit is further configured to adjust the number of HARQ processes allocated to the current carrier supported by the terminal when the current carrier supported by the terminal changes.
24. The apparatus of claim 23, further comprising:
a sending unit, configured to send downlink control information DCI to the terminal, where the DCI carries HARQ configuration information, and the HARQ configuration information is used to indicate a HARQ process number allocated to a carrier currently supported by the terminal.
25. An access network device, characterized in that the access network device comprises:
a processor, configured to configure a HARQ process number n for a terminal; under a carrier aggregation scene, each carrier aggregated by the terminal can share n HARQ processes; under a non-carrier aggregation scene, one carrier supported by the terminal can multiplex a plurality of groups of different basic parameter sets, and the plurality of groups of different basic parameter sets can share n HARQ processes;
the processor is further configured to allocate m HARQ processes of the n HARQ processes to each carrier aggregated by the terminal according to the characteristic information of each carrier aggregated by the terminal; or, according to the basic parameter set currently adopted by the carrier currently supported by the terminal, allocating m HARQ processes of the n HARQ processes to the carrier currently supported by the terminal; wherein n is more than or equal to m and more than or equal to 1, and n and m are positive integers.
26. The access network device of claim 25, wherein the carrier currently supported by the terminal comprises a plurality of carriers aggregated by the terminal.
27. The access network device of claim 26, wherein the sum of HARQ process numbers allocated to each carrier aggregated by the terminal is m, and the HARQ process numbers allocated to at least two carriers in each carrier aggregated by the terminal are the same or different.
28. The access network device of claim 26, wherein the processor is configured to:
acquiring characteristic information of each carrier aggregated by the terminal;
and allocating m HARQ processes in the n HARQ processes to each carrier aggregated by the terminal according to the characteristic information of each carrier aggregated by the terminal.
29. The access network device of claim 28, wherein the carrier characteristic information comprises at least one of: the basic parameter set adopted by the carrier, the main service type carried by the carrier and the frequency band where the carrier is located.
30. The access network device of claim 25, wherein the number of carriers currently supported by the terminal is 1, and the carriers multiplex multiple different sets of basic parameter sets, and each set of basic parameter sets includes a set of time-frequency resource configuration parameters.
31. The access network device of claim 30, wherein the processor is configured to:
and under the condition that the number of the carriers currently supported by the terminal is 1, allocating m HARQ processes in the n HARQ processes to the carriers currently supported by the terminal according to a basic parameter set currently adopted by the carriers currently supported by the terminal.
32. The access network device of any of claims 25 to 31, wherein the processor is configured to:
acquiring characteristic information of the terminal;
and configuring the HARQ process number n for the terminal according to the characteristic information of the terminal.
33. The access network device of claim 32, wherein the characteristic information of the terminal comprises at least one of: the terminal comprises the HARQ cache capacity of the terminal, the data processing capacity of the terminal, the number of each carrier aggregated by the terminal, the characteristics of each carrier aggregated by the terminal and the main service type requested by the terminal.
34. The access network device of any of claims 25 to 31, wherein the processor is configured to:
and selecting one candidate HARQ process number from at least one predefined candidate HARQ process number to be configured to the terminal.
35. An access network device according to any one of claims 25 to 31,
the processor is further configured to adjust the number of HARQ processes allocated to the current carrier supported by the terminal when the current carrier supported by the terminal changes.
36. The access network device of claim 35, wherein the access network device further comprises:
a transmitter, configured to send downlink control information DCI to the terminal, where the DCI carries HARQ configuration information, and the HARQ configuration information is used to indicate a HARQ process number allocated to a carrier currently supported by the terminal.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1917417A (en) * | 2005-08-15 | 2007-02-21 | 大唐移动通信设备有限公司 | Mixing automatic retransmission method in accessing down going packet in high speed and multiple carriers, and application |
| CN1917416A (en) * | 2005-08-15 | 2007-02-21 | 大唐移动通信设备有限公司 | Mixing automatic retransmission method in accessing down going packet in high speed and multiple carriers |
| CN102413576A (en) * | 2011-12-21 | 2012-04-11 | 电信科学技术研究院 | Physical downlink control channel (PDCCH) transmitting and receiving methods and equipment |
| CN102447547A (en) * | 2010-09-30 | 2012-05-09 | 中兴通讯股份有限公司 | Hybrid automatic retransmission method, system and terminal in MC-HSUPA |
| CN102469022A (en) * | 2010-11-19 | 2012-05-23 | 大唐移动通信设备有限公司 | Allocation method and equipment of cache space |
| CN102892148A (en) * | 2011-07-22 | 2013-01-23 | 中兴通讯股份有限公司 | Allocation method, system and terminal for multi-carrier HSDPA (high speed downlink packet access) HARQ (hybrid automatic repeat request) cache |
| CN103391166A (en) * | 2012-05-08 | 2013-11-13 | 普天信息技术研究院有限公司 | PUSCH authorization and HARQ transmission method |
| CN103518345A (en) * | 2012-05-11 | 2014-01-15 | 华为技术有限公司 | Wireless communication method, user equipment and base station for supporting harq |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010144245A1 (en) * | 2009-06-08 | 2010-12-16 | Research In Motion Limited | Harq process management for carrier aggregation and mapping between harq processes and transmission resources |
| CN101932039B (en) * | 2009-06-22 | 2014-09-10 | 中兴通讯股份有限公司 | Semi-persistent scheduling method and system |
| US9497775B2 (en) * | 2009-07-07 | 2016-11-15 | Lg Electronics Inc. | Method and apparatus for carrier scheduling in a multi-carrier system |
| WO2011008048A2 (en) * | 2009-07-16 | 2011-01-20 | 엘지전자 주식회사 | Method and apparatus for performing harq in multiple carrier system |
| WO2012074878A2 (en) * | 2010-12-03 | 2012-06-07 | Interdigital Patent Holdings, Inc. | Methods, apparatus and systems for performing multi-radio access technology carrier aggregation |
| CN103326806B (en) * | 2012-03-19 | 2016-08-03 | 电信科学技术研究院 | The transmission method of a kind of descending control signaling and device |
| US9565140B2 (en) * | 2013-10-11 | 2017-02-07 | Mediatek, Inc. | HARQ memory space management for LTE carrier aggregation |
| CN104579603B (en) * | 2014-12-25 | 2017-12-26 | 京信通信***（中国）有限公司 | A kind of downlink dispatching method and device based on HARQ |
| WO2016187885A1 (en) * | 2015-05-28 | 2016-12-01 | Qualcomm Incorporated | Detection and reduction of delays in reverse link control data |
| US10104658B2 (en) * | 2015-06-12 | 2018-10-16 | Asustek Computer Inc. | Method and apparatus for delivery of control signaling in a wireless communication system |
| US10200904B2 (en) * | 2015-06-24 | 2019-02-05 | Qualcomm Incorporated | Techniques for transmitting on multiple carriers of a shared radio frequency spectrum band |
| WO2017007171A1 (en) * | 2015-07-06 | 2017-01-12 | Lg Electronics Inc. | Method for triggering a buffer status reporting in dual connectivity and a device therefor |
-
2017
- 2017-01-24 CN CN201780052707.9A patent/CN109845159B/en active Active
- 2017-01-24 WO PCT/CN2017/072443 patent/WO2018137130A1/en active Application Filing
-
2018
- 2018-01-15 TW TW107101452A patent/TWI751263B/en active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1917417A (en) * | 2005-08-15 | 2007-02-21 | 大唐移动通信设备有限公司 | Mixing automatic retransmission method in accessing down going packet in high speed and multiple carriers, and application |
| CN1917416A (en) * | 2005-08-15 | 2007-02-21 | 大唐移动通信设备有限公司 | Mixing automatic retransmission method in accessing down going packet in high speed and multiple carriers |
| CN102447547A (en) * | 2010-09-30 | 2012-05-09 | 中兴通讯股份有限公司 | Hybrid automatic retransmission method, system and terminal in MC-HSUPA |
| CN102469022A (en) * | 2010-11-19 | 2012-05-23 | 大唐移动通信设备有限公司 | Allocation method and equipment of cache space |
| CN102892148A (en) * | 2011-07-22 | 2013-01-23 | 中兴通讯股份有限公司 | Allocation method, system and terminal for multi-carrier HSDPA (high speed downlink packet access) HARQ (hybrid automatic repeat request) cache |
| CN102413576A (en) * | 2011-12-21 | 2012-04-11 | 电信科学技术研究院 | Physical downlink control channel (PDCCH) transmitting and receiving methods and equipment |
| CN103391166A (en) * | 2012-05-08 | 2013-11-13 | 普天信息技术研究院有限公司 | PUSCH authorization and HARQ transmission method |
| CN103518345A (en) * | 2012-05-11 | 2014-01-15 | 华为技术有限公司 | Wireless communication method, user equipment and base station for supporting harq |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201828630A (en) | 2018-08-01 |
| TWI751263B (en) | 2022-01-01 |
| WO2018137130A1 (en) | 2018-08-02 |
| CN109845159A (en) | 2019-06-04 |
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