CN113452484A

CN113452484A - Method and device used in user and base station for low-delay communication

Info

Publication number: CN113452484A
Application number: CN202110647935.9A
Authority: CN
Inventors: 蒋琦
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2017-09-06
Filing date: 2017-09-06
Publication date: 2021-09-28
Anticipated expiration: 2037-09-06
Also published as: CN108323228B; CN113452483A; CN113452484B; CN108323228A; WO2019047050A1

Abstract

The application discloses a method and a device in a user and a base station used for low-delay communication. The user equipment first determines C1 first-type buffer sizes, and then receives C1 bit blocks in a first time window; the C1 bit blocks all belong to a first transport block; the time length of the first time window is equal to the first time length; { upper limit of the number of bits that the first transport block can contain, the first time length } at least one of the C1 first-type buffer sizes is determined, and the C1 first-type buffer sizes and the C1 bit blocks are in one-to-one correspondence; the first length of time is equal to one of K alternative lengths of time. By associating the first time length with the C1 first-type cache sizes, when the user equipment supports a plurality of processes with different durations, reasonable distribution of the cache sizes is achieved, and overall performance is improved.

Description

Method and device used in user and base station for low-delay communication

The present application is a divisional application of the following original applications:

application date of the original application: 2017.09.06

- -application number of the original application: 201780003872.5

The invention of the original application is named: method and device used in user and base station for low-delay communication

Technical Field

The present application relates to a transmission method and apparatus in a wireless communication system, and more particularly, to a transmission method and apparatus of a wireless signal supporting low-delay communication.

Background

In the existing LTE (Long-Term Evolution, Long Term Evolution) and LTE-a (Long Term Evolution Advanced, enhanced Long Term Evolution) systems, one Transmission corresponds to one TTI (Transmission Time Interval), and in consideration of RTT (Round Trip Time, cyclic path Time) of one interaction between the user equipment and the base station, the user needs to support 8 HARQ (Hybrid Automatic Repeat Request) processes at the same Time to ensure improvement of Transmission efficiency caused by parallel processing. Since the maximum TBS (Transmission Block Size) transmitted in each TTI is the same, the ue allocates the same buffer to each process to ensure performance when performing retransmission based on Incremental Redundancy (Incremental Redundancy).

In current Release 14 and future 5G systems, the ue will support multiple transmissions for different durations in a given time window; meanwhile, the ue will also support the HARQ process of TTI and STTI (Short Transmission Time Interval) in a given Time window; accordingly, the allocation of new buffers needs to be redesigned to ensure that transmissions for different durations can be supported simultaneously.

Disclosure of Invention

The inventor finds, through research, that a simple design method is to allocate the same buffer size to each HARQ process supported by the user equipment, i.e. a method similar to the existing LTE. However, one disadvantage of this method is that the maximum TBS for the STTI is not considered to be smaller than the maximum TBS for the TTI, and dividing the buffer size equally based on the number of HARQ processes alone results in reduced performance for the TTI and excessive buffer allocation for the STTI.

In view of the above design, the present application discloses a solution. Without conflict, embodiments and features in embodiments in the user equipment of the present application may be applied to the base station and vice versa. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

The application discloses a method in a user equipment used for low-delay communication, which is characterized by comprising the following steps:

-determining C1 first type cache sizes;

-receiving a block of C1 bits in a first time window;

wherein each of the C1 bit blocks comprises a positive integer number of bits, the C1 bit blocks each belong to a first transport block, the C1 is a positive integer; the time length of the first time window is equal to the first time length; { upper limit of the number of bits that the first transport block can contain, the first time length }, at least one of which is used to determine the C1 first-type buffer sizes, the C1 first-type buffer sizes and the C1 bit blocks have a one-to-one correspondence, and the C1 is a positive integer; the first time length is equal to one of K candidate time lengths, any two of the K candidate time lengths are different, and K is a positive integer greater than 1.

As an example, the above method has the benefits of: by establishing the relation between the first time length and the C1 first-class cache sizes, the first time length is guaranteed to be considered during cache allocation, namely the number of the multi-carrier symbol numbers occupied by the STTI is considered, so that the cache sizes are reasonably allocated among the HARQ processes corresponding to different durations, and the overall performance of the system and the utilization rate of the cache are improved.

According to one aspect of the application, the above method is characterized by comprising:

-receiving a second transport block in a second time window;

wherein a time length of the second time window is equal to a second time length, the second time length is one of the K alternative time lengths, and the second time length is different from the first time length; the first transport block and the second transport block correspond to a first size and a second size, respectively, the first size is not less than a sum of the C1 first-class buffer sizes, the first size is used to determine the C1 first-class buffer sizes; a maximum number of HARQ (Hybrid Automatic Repeat Request ) processes for the first time length is a first integer, and a maximum number of HARQ processes for the second time length is a second integer; the first size is related to at least one of { the first integer, the second integer }, and the second size is related to at least one of { the first integer, the second integer }.

As an example, the above method has the benefits of: when the user equipment supports the first time length and the second time length simultaneously, the first integer corresponding to the first time length and the second integer corresponding to the second time length are both used for determining the first size and the second size; namely, the user equipment considers the first integer and the second integer simultaneously when performing cache allocation, and then reasonably allocates the cache to ensure that the HARQ processes with two durations can work normally.

As an embodiment, characterized in that the user equipment further comprises:

-determining C2 second-type cache sizes;

wherein the second transport block comprises C2 bit blocks, each bit block of the C2 bit blocks comprises a positive integer of bits, at least one of { an upper limit of a number of bits that the second transport block can contain, the second time length } is used to determine the C2 second-class buffer sizes, the C2 second-class buffer sizes are in one-to-one correspondence with the C2 bit blocks, and the C2 is a positive integer.

According to an aspect of the application, the above method is characterized in that a first bit block is one of the C1 bit blocks, the number of bits in the first bit block stored by the user equipment is not smaller than a first storage block size when the transmission of the first bit block is not correctly received, a first buffer size is used to determine the first storage block size, and the first buffer size is the first buffer size corresponding to the first bit block among the C1 first buffer sizes.

According to one aspect of the application, the above method is characterized in that the C1 bit block generates a first radio signal, the duration of which in the time domain is equal to the first time length; the first length of time corresponds to a first clipping factor, and the first size is associated with the first clipping factor.

As an example, the above method has the benefits of: and introducing the first clipping factor, wherein the first clipping factor is related to the maximum TBS supported by the user equipment in the first time span, and further when the maximum TBS is different from the maximum TBS of a normal TTI, the first clipping factor effectively reduces the buffer allocated to the first time span to adapt to the smaller maximum TBS, so that the buffer utilization efficiency is improved.

According to an aspect of the application, the above method is characterized in that the second transport block comprises a block of C2 bits, the block of C2 bits generating a second radio signal, the duration of the second radio signal in the time domain being the second length of time; the second length of time corresponds to a second clipping factor, and the second size is associated with at least one of { the first clipping factor, the second clipping factor }.

As an example, the above method has the benefits of: when the user equipment supports the first time length and the second time length simultaneously, the cache allocation aiming at the first time length and the cache allocation aiming at the second time length are both related to the first time length and the second time length, so that the caches are reasonably allocated, and the cache utilization rate and the overall performance of the system are improved.

-receiving a first signaling;

wherein the first signaling is used to determine configuration information for the first wireless signal, the configuration information including at least one of { occupied time domain resources, occupied frequency domain resources, MCS }.

-receiving second signaling;

wherein the second signaling is used to determine configuration information for the second wireless signal, the configuration information including at least one of { occupied time domain resources, occupied frequency domain resources, MCS }.

-transmitting the first information;

wherein the first information is used to determine that the user equipment is capable of receiving the first transport block and the second transport block in a first time unit, the first time unit comprising the first time window and the second time window.

The application discloses a method in a base station used for low-delay communication, which is characterized by comprising the following steps:

-determining C1 first type cache sizes;

-transmitting a block of C1 bits in a first time window;

-transmitting a second transport block in a second time window;

wherein a time length of the second time window is equal to a second time length, the second time length is one of the K alternative time lengths, and the second time length is different from the first time length; the first transport block and the second transport block correspond to a first size and a second size, respectively, the first size is not less than a sum of the C1 first-class buffer sizes, the first size is used to determine the C1 first-class buffer sizes; the maximum number of HARQ processes for the first length of time is a first integer and the maximum number of HARQ processes for the second length of time is a second integer; the first size is related to at least one of { the first integer, the second integer }, and the second size is related to at least one of { the first integer, the second integer }.

As an embodiment, the base station further comprises:

-determining C2 second-type cache sizes;

According to one aspect of the present application, the above method is characterized in that the first bit block is one of said C1 bit blocks, the number of bits in said first bit block stored by the first terminal is not smaller than a first storage block size when the transmission of said first bit block is not correctly received, a first buffer size is used to determine said first storage block size, said first buffer size is said first buffer size corresponding to said first bit block of said C1 first buffer sizes; the first terminal belongs to a recipient of the first bit block.

-transmitting first signalling;

wherein the first signaling is used to determine configuration information for the first wireless signal, the configuration information including at least one of { occupied time domain resource, occupied frequency domain resource, and Modulation and Coding Scheme (MCS) }.

-transmitting second signaling;

-receiving first information;

wherein the first information is used to determine that a sender of the first information is capable of receiving the first transport block and the second transport block in a first time unit, the first time unit including the first time window and the second time window.

As a sub-embodiment, the sender of the first information is the first terminal.

The application discloses a user equipment used for low-delay communication, which is characterized by comprising:

-a first receiver module determining C1 first type buffer sizes and receiving C1 blocks of bits in a first time window;

As an embodiment, the user equipment used for low-latency communication described above is characterized in that the first receiver module receives a second transport block in a second time window; the time length of the second time window is equal to a second time length, the second time length is one of the K alternative time lengths, and the second time length is different from the first time length; the first transport block and the second transport block correspond to a first size and a second size, respectively, the first size is not less than a sum of the C1 first-class buffer sizes, the first size is used to determine the C1 first-class buffer sizes; the maximum number of HARQ processes for the first length of time is a first integer and the maximum number of HARQ processes for the second length of time is a second integer; the first size is related to at least one of { the first integer, the second integer }, and the second size is related to at least one of { the first integer, the second integer }.

As an embodiment, the above user equipment for low latency communication is characterized in that the first receiver module determines C2 second-type buffer sizes; the second transport block includes C2 bit blocks, each bit block of the C2 bit blocks includes a positive integer of bits, at least one of { an upper limit of a number of bits that the second transport block can contain, the second time length } is used to determine the C2 second-class buffer sizes, the C2 second-class buffer sizes are in one-to-one correspondence with the C2 bit blocks, and the C2 is a positive integer.

As an embodiment, the user equipment used for low latency communication is characterized in that a first bit block is one of the C1 bit blocks, when transmission of the first bit block is not correctly received, the number of bits in the first bit block stored by the user equipment is not less than a first storage block size, a first buffer size is used to determine the first storage block size, and the first buffer size is the first buffer size corresponding to the first bit block in the C1 first buffer sizes.

As an embodiment, the above user equipment for low latency communication is characterized in that the C1 bit blocks generate a first radio signal, the duration of the first radio signal in the time domain is equal to the first time length; the first length of time corresponds to a first clipping factor, and the first size is associated with the first clipping factor.

As an embodiment, the above user equipment for low delay communication is characterized in that the second transport block comprises a C2 bit block, the C2 bit block generating a second radio signal, the duration of the second radio signal in the time domain being the second time length; the second length of time corresponds to a second clipping factor, and the second size is associated with at least one of { the first clipping factor, the second clipping factor }.

As an embodiment, the user equipment used for low-latency communication described above is characterized in that the first receiver module receives a first signaling; the first signaling is used to determine configuration information for the first wireless signal, the configuration information including at least one of { occupied time domain resources, occupied frequency domain resources, MCS }.

As an embodiment, the user equipment used for low-latency communication described above is characterized in that the first receiver module receives a second signaling; the second signaling is used to determine configuration information for the second wireless signal, the configuration information including at least one of { occupied time domain resources, occupied frequency domain resources, MCS }.

As an embodiment, the user equipment used for low-latency communication described above is characterized by comprising:

-a first transmitter module for transmitting first information;

The application discloses a base station device used for low-delay communication, which is characterized by comprising:

-a second transmitter module determining C1 first type buffer sizes and transmitting C1 bit blocks in a first time window;

As an embodiment, the base station device used for low-delay communication described above is characterized in that the second transmitter module transmits the second transport block in a second time window; the time length of the second time window is equal to a second time length, the second time length is one of the K alternative time lengths, and the second time length is different from the first time length; the first transport block and the second transport block correspond to a first size and a second size, respectively, the first size is not less than a sum of the C1 first-class buffer sizes, the first size is used to determine the C1 first-class buffer sizes; the maximum number of HARQ processes for the first length of time is a first integer and the maximum number of HARQ processes for the second length of time is a second integer; the first size is related to at least one of { the first integer, the second integer }, and the second size is related to at least one of { the first integer, the second integer }.

As an embodiment, the base station device used for low-delay communication described above is characterized in that the second transmitter module determines C2 second-type buffer sizes; the second transport block includes C2 bit blocks, each bit block of the C2 bit blocks includes a positive integer of bits, at least one of { an upper limit of a number of bits that the second transport block can contain, the second time length } is used to determine the C2 second-class buffer sizes, the C2 second-class buffer sizes are in one-to-one correspondence with the C2 bit blocks, and the C2 is a positive integer.

As an embodiment, the above base station device used for low latency communication is characterized in that a first bit block is one of the C1 bit blocks, when transmission of the first bit block is not correctly received, the number of bits in the first bit block stored by a first terminal is not less than a first storage block size, a first buffer size is used to determine the first storage block size, and the first buffer size is the first buffer size corresponding to the first bit block from among the C1 first buffer sizes; the first terminal belongs to a recipient of the first bit block.

As an embodiment, the base station apparatus used for low-delay communication described above is characterized in that the C1 bit blocks generate a first wireless signal, and a duration of the first wireless signal in a time domain is equal to the first time length; the first length of time corresponds to a first clipping factor, and the first size is associated with the first clipping factor.

As an embodiment, the above base station apparatus for low delay communication is characterized in that the second transport block comprises a C2 bit block, the C2 bit block generating a second radio signal, the duration of the second radio signal in the time domain being the second time length; the second length of time corresponds to a second clipping factor, and the second size is associated with at least one of { the first clipping factor, the second clipping factor }.

As an embodiment, the base station device used for low-delay communication described above is characterized in that the second transmitter module transmits the first signaling; the first signaling is used to determine configuration information for the first wireless signal, the configuration information including at least one of { occupied time domain resources, occupied frequency domain resources, MCS }.

As an embodiment, the base station device used for low-delay communication described above is characterized in that the second transmitter module transmits a second signaling; the second signaling is used to determine configuration information for the second wireless signal, the configuration information including at least one of { occupied time domain resources, occupied frequency domain resources, MCS }.

As an embodiment, the above base station apparatus used for low-delay communication is characterized by comprising:

-a second receiver module receiving the first information;

As an example, compared with the conventional scheme, the method has the following advantages:

establishing a relationship between the first time length and the C1 first-class buffer sizes, so as to ensure that the first time length is considered during buffer allocation, that is, the number of multicarrier symbols occupied by the STTI is considered, and further reasonably allocate the buffer sizes among HARQ processes corresponding to different durations, thereby improving the overall performance of the system and the utilization rate of the buffer;

when the ue supports both the first time duration and the second time duration, both the first integer corresponding to the first time duration and the second integer corresponding to the second time duration are used to determine the first size and the second size; namely, the user equipment considers the first integer and the second integer simultaneously when carrying out cache allocation, and further reasonably allocates caches to ensure that HARQ processes with two durations can work normally;

introducing the first clipping factor, where the first clipping factor is related to the maximum TBS supported by the ue for the first time duration, and further when the maximum TBS is different from the maximum TBS of the normal TTI, the first clipping factor effectively reduces the buffer allocated to the first time duration to adapt to the smaller maximum TBS, thereby improving the buffer utilization efficiency.

Drawings

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 with reference to the accompanying drawings in which:

FIG. 1 illustrates a flow diagram for determining C1 first type cache sizes according to one embodiment of the present application;

FIG. 2 shows a schematic diagram of a network architecture according to an embodiment of the present application;

figure 3 shows a schematic diagram of an embodiment of a radio protocol architecture for the user plane and the control plane according to an embodiment of the present application;

figure 4 shows a schematic diagram of an evolved node and a UE according to an embodiment of the present application;

FIG. 5 shows a flow diagram for transmitting first information according to an embodiment of the application;

FIG. 6 shows a schematic diagram of a first time window and a second time window according to an embodiment of the present application;

FIG. 7 shows a schematic diagram of a first time window and a second time window according to another embodiment of the present application;

FIG. 8 illustrates a schematic diagram of C1 first-type cache sizes, according to an embodiment of the present application;

fig. 9 shows a block diagram of a processing device for use in a user equipment according to an embodiment of the present application;

fig. 10 shows a block diagram of a processing device for use 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 for determining C1 first-class cache sizes, as shown in fig. 1.

In embodiment 1, the user equipment in this application first determines C1 first-type buffer sizes, and then receives C1 bit blocks in a first time window; each of the C1 bit blocks comprises a positive integer number of bits, the C1 bit blocks each belong to a first transport block, the C1 is a positive integer; the time length of the first time window is equal to the first time length; { upper limit of the number of bits that the first transport block can contain, the first time length }, at least one of which is used to determine the C1 first-type buffer sizes, the C1 first-type buffer sizes and the C1 bit blocks have a one-to-one correspondence, and the C1 is a positive integer; the first time length is equal to one of K candidate time lengths, any two of the K candidate time lengths are different, and K is a positive integer greater than 1.

As a sub-embodiment, the first type of buffer size is not larger than K in TS 36.212 and TS 36.213_w。

As an additional embodiment of this sub-embodiment, the K_WIs the size of the maximum Circular Buffer (Circular Buffer) allocated to the bit block corresponding to the first type of Buffer size.

As a sub-embodiment, the first type of buffer size corresponds to N in TS 36.212 and TS 36.213_cb。

As a sub-embodiment, the K candidate time lengths comprise at least one of { duration of 1 multicarrier symbol, duration of 2 time-domain consecutive multicarrier symbols, duration of 4 time-domain consecutive multicarrier symbols, duration of 7 time-domain consecutive multicarrier symbols }.

As a sub-embodiment, the K alternative time lengths comprise 1ms (milliseconds).

As a sub-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 Spreading Orthogonal Frequency Division Multiplexing) symbol including CP }.

As a sub-embodiment, the C1 bit blocks correspond to C1 Code blocks (Code blocks), respectively.

As a sub-embodiment, the C1 bit Block belongs to one transport Block (Transmission Block).

As a sub-embodiment, the C1 bit blocks constitute one transport block.

As a sub-embodiment, the first type of cache size is related to a Category (Category) of the user equipment.

As a sub-embodiment, the K candidate time lengths respectively correspond to K Subcarrier spacings (Subcarrier Spacing) one by one.

As a sub-embodiment, the K candidate time lengths respectively correspond to K number of physical structures (Numerology).

Example 2

Embodiment 2 illustrates a schematic diagram of a network architecture, as shown in fig. 2.

Embodiment 2 illustrates a schematic diagram of a network architecture according to the present application, as shown in fig. 2. Fig. 2 shows a diagram of NR 5G, LTE (Long-Term Evolution) and LTE-a (Long-Term Evolution Advanced) system network architectures 200. The NR 5G or LTE network architecture 200 may be referred to as EPS (Evolved Packet System) 200 or some other suitable terminology. The EPS 200 may include one or more UEs (User Equipment) 201, NR-RANs (next generation radio access networks) 202, 5G-CNs (5G-Core networks, 5G Core networks)/EPCs (Evolved Packet cores) 210, HSS (Home Subscriber Server) 220, and internet services 230. The EPS may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown, the EPS provides packet-switched services, however those skilled in the art will readily appreciate that the various concepts presented throughout this application may be extended to networks providing circuit-switched services or other cellular networks. The NG-RAN includes NR node b (gNB)203 and other gnbs 204. The gNB203 provides user and control plane protocol termination towards the UE 201. The gnbs 203 may be connected to other gnbs 204 via an Xn interface (e.g., backhaul). The gNB203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), a TRP (point of transmission reception), or some other suitable terminology. The gNB203 provides the UE201 with an access point to the 5G-CN/EPC 210. Examples of the UE201 include a cellular phone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a Personal Digital Assistant (PDA), a satellite radio, non-terrestrial base station communications, satellite mobile communications, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a game console, a drone, an aircraft, a narrowband physical network device, a machine-type communication device, a terrestrial vehicle, an automobile, a wearable device, or any other similar functioning device. Those skilled in the art may also refer to UE201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology. The gNB203 is connected to the 5G-CN/EPC210 through an S1/NG interface. The 5G-CN/EPC210 includes MME/AMF/UPF211, other MME (Mobility Management Entity)/AMF (Authentication Management Field)/UPF (User Plane Function) 214, S-GW (Service Gateway) 212, and P-GW (Packet data Network Gateway) 213. MME/AMF/UPF211 is a control node that handles signaling between UE201 and 5G-CN/EPC 210. In general, the MME/AMF/UPF211 provides bearer and connection management. All user IP (Internet protocol) packets are transmitted through S-GW212, and S-GW212 itself is connected to P-GW 213. The P-GW213 provides UE IP address allocation as well as other functions. The P-GW213 is connected to the internet service 230. The internet service 230 includes an operator-corresponding internet protocol service, and may specifically include the internet, an intranet, an IMS (IP Multimedia Subsystem), and a PS streaming service (PSs).

As a sub-embodiment, the UE201 corresponds to the UE in the present application.

As a sub-embodiment, the gNB203 corresponds to the base station in this application.

As a sub-embodiment, the UE201 supports physical layer processing for low latency communications.

As a sub-embodiment, the gNB203 supports physical layer processing for low latency communications.

As a sub-embodiment, the UE201 is a URLLC (Ultra Reliable Low Latency Communication) terminal.

As a sub-embodiment, the gNB203 supports URLLC traffic.

Example 3

Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture for the user plane and the control plane according to the present application, as shown in fig. 3.

Fig. 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for the user plane and the control plane, fig. 3 showing the radio protocol architecture for the User Equipment (UE) and the base station equipment (gNB or eNB) in three layers: layer 1, layer 2 and layer 3. Layer 1(L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to herein as PHY301, with layer 2(L2 layer) 305 being above PHY301 and responsible for the link between the UE and the gNB through PHY 301. In the user plane, the L2 layer 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the gNB on the network side. Although not shown, the UE may have several upper layers above the L2 layer 305, including a network layer (e.g., IP layer) that terminates at the P-GW on the network side and an application layer that terminates at the other end of the connection (e.g., far end UE, server, etc.). The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides header compression for upper layer data packets to reduce radio transmission overhead, security by ciphering the data packets, and handover support for UEs between gnbs. The RLC sublayer 303 provides segmentation and reassembly of upper layer packets, retransmission of lost packets, and reordering of packets to compensate for out-of-order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in one cell among the UEs. The MAC sublayer 302 is also responsible for HARQ operations. In the control plane, the radio protocol architecture for the UE and the gNB is substantially the same for the physical layer 301 and the L2 layer 305, but without the header compression function for the control plane. The Control plane also includes an RRC (Radio Resource Control) sublayer 306 in layer 3 (layer L3). The RRC sublayer 306 is responsible for obtaining radio resources (i.e., radio bearers) and configures the lower layers using RRC signaling between the gNB and the UE.

As a sub-embodiment, the radio protocol architecture in fig. 3 is applicable to the user equipment in the present application.

As a sub-embodiment, the radio protocol architecture in fig. 3 is applicable to the base station in the present application.

As a sub-embodiment, the C1 first-type buffer sizes in this application are generated in the PHY 301.

As a sub-embodiment, the C2 second-type buffer sizes in this application are generated in the PHY 301.

As a sub-embodiment, the first size in this application is generated in the PHY 301.

As a sub-embodiment, the second size in this application is generated in the PHY 301.

As a sub-embodiment, the first information in the present application is generated in the RRC sublayer 306.

Example 4

Embodiment 4 shows a schematic diagram of a base station device and a given user equipment according to the present application, as shown in fig. 4. Fig. 4 is a block diagram of a gNB410 in communication with a UE450 in an access network.

The base station apparatus (410) includes a controller/processor 440, a memory 430, a receive processor 412, a transmit processor 415, a buffer processor 471, a transmitter/receiver 416, and an antenna 420.

User equipment (450) includes controller/processor 490, memory 480, data source 467, transmit processor 455, receive processor 452, cache processor 441, transmitter/receiver 456, and antenna 460.

In the downlink transmission, the processing related to the base station apparatus (410) includes:

upper layer packets arrive at controller/processor 440, controller/processor 440 provides packet header compression, encryption, packet segmentation concatenation and reordering, and demultiplexing of the multiplex between logical and transport channels to implement the L2 layer protocol for the user plane and control plane; the upper layer packet may include data or control information, such as DL-SCH (Downlink Shared Channel);

the controller/processor 440 is associated with a memory 430 that stores program codes and data, the memory 430 may be a computer-readable medium;

the controller/processor 440 comprises a scheduling unit to schedule air interface resources corresponding to transmission requirements;

-a buffer processor 471, determining C1 first type buffer sizes, determining C2 second type buffer sizes, determining the first size, determining the second size, determining the first storage block size; and sends the results to controller/processor 440;

a transmit processor 415, receiving the output bit stream of the controller/processor 440, implementing various signal transmission processing functions for the L1 layer (i.e., physical layer) including coding, interleaving, scrambling, modulation, power control/allocation, physical layer control signaling generation, and the like;

a transmitter 416 for converting the baseband signal provided by the transmit processor 415 into a radio frequency signal and transmitting the radio frequency signal via an antenna 420; each transmitter 416 samples a respective input symbol stream to obtain a respective sampled signal stream. Each transmitter 416 further processes (e.g., converts to analog, amplifies, filters, upconverts, etc.) the respective sample stream to obtain a downlink signal.

In the downlink transmission, the processing related to the user equipment (UE450) may include:

a receiver 456 for converting radio frequency signals received via an antenna 460 to baseband signals for provision to the receive processor 452;

receive processor 452 performs various signal receive processing functions for the L1 layer (i.e., physical layer) including decoding, deinterleaving, descrambling, demodulation, and physical layer control signaling extraction, etc.;

-the cache processor 441, determining C1 first type cache sizes, determining C2 second type cache sizes, determining the first size, determining the second size, determining the first storage block size; and sends the results to controller/processor 490;

controller/processor 490 receives the bit stream output from receive processor 452 and provides packet header decompression, decryption, packet segmentation concatenation and reordering, and multiplexing and demultiplexing between logical and transport channels to implement the L2 layer protocol for the user plane and control plane;

the controller/processor 490 is associated with a memory 480 that stores program codes and data. Memory 480 may be a computer-readable medium.

As a sub-embodiment, the UE450 apparatus comprises: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code configured to, with the at least one processor, the UE450 apparatus at least: determining C1 first-type buffer sizes, and receiving C1 bit blocks in a first time window; each of the C1 bit blocks comprises a positive integer number of bits, the C1 bit blocks each belong to a first transport block, the C1 is a positive integer; the time length of the first time window is equal to the first time length; { upper limit of the number of bits that the first transport block can contain, the first time length }, at least one of which is used to determine the C1 first-type buffer sizes, the C1 first-type buffer sizes and the C1 bit blocks have a one-to-one correspondence, and the C1 is a positive integer; the first time length is equal to one of K candidate time lengths, any two of the K candidate time lengths are different, and K is a positive integer greater than 1.

As a sub-embodiment, the UE450 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: determining C1 first-type buffer sizes, and receiving C1 bit blocks in a first time window; each of the C1 bit blocks comprises a positive integer number of bits, the C1 bit blocks each belong to a first transport block, the C1 is a positive integer; the time length of the first time window is equal to the first time length; { upper limit of the number of bits that the first transport block can contain, the first time length }, at least one of which is used to determine the C1 first-type buffer sizes, the C1 first-type buffer sizes and the C1 bit blocks have a one-to-one correspondence, and the C1 is a positive integer; the first time length is equal to one of K candidate time lengths, any two of the K candidate time lengths are different, and K is a positive integer greater than 1.

As a sub-embodiment, the gNB410 apparatus comprises: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The gNB410 apparatus at least: determining C1 first-type buffer sizes, and transmitting C1 bit blocks in a first time window; each of the C1 bit blocks comprises a positive integer number of bits, the C1 bit blocks each belong to a first transport block, the C1 is a positive integer; the time length of the first time window is equal to the first time length; { upper limit of the number of bits that the first transport block can contain, the first time length }, at least one of which is used to determine the C1 first-type buffer sizes, the C1 first-type buffer sizes and the C1 bit blocks have a one-to-one correspondence, and the C1 is a positive integer; the first time length is equal to one of K candidate time lengths, any two of the K candidate time lengths are different, and K is a positive integer greater than 1.

As a sub-embodiment, the gNB410 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: determining C1 first-type buffer sizes, and transmitting C1 bit blocks in a first time window; each of the C1 bit blocks comprises a positive integer number of bits, the C1 bit blocks each belong to a first transport block, the C1 is a positive integer; the time length of the first time window is equal to the first time length; { upper limit of the number of bits that the first transport block can contain, the first time length }, at least one of which is used to determine the C1 first-type buffer sizes, the C1 first-type buffer sizes and the C1 bit blocks have a one-to-one correspondence, and the C1 is a positive integer; the first time length is equal to one of K candidate time lengths, any two of the K candidate time lengths are different, and K is a positive integer greater than 1.

As a sub-embodiment, the UE450 corresponds to a user equipment in the present application.

As a sub-embodiment, the gNB410 corresponds to a base station in the present application.

As a sub-embodiment, at least the first two of the receiver 456, receive processor 452, and controller/processor 490 are used to receive a block of C1 bits in a first time window.

As a sub-embodiment, at least the first two of the receiver 456, receive processor 452, and controller/processor 490 are used to receive a block of C2 bits in a second time window.

As a sub-embodiment, at least the first two of the receiver 456, the receive processor 452, and the controller/processor 490 are used to receive the first signaling.

As a sub-embodiment, at least the first two of the receiver 456, the receive processor 452, and the controller/processor 490 are used to receive the second signaling.

As a sub-embodiment, at least the first two of the transmitter 456, the transmit processor 455, and the controller/processor 490 are used to transmit the first information.

As a sub-embodiment, the cache processor 441 is used to determine C1 first-type cache sizes.

As a sub-embodiment, the cache processor 441 is used to determine C2 cache sizes of the second type.

As a sub-embodiment, at least the first two of the transmitter 416, the transmit processor 415, and the controller/processor 440 are used to send a block of C1 bits in a first time window.

As a sub-embodiment, at least the first two of the transmitter 416, the transmit processor 415, and the controller/processor 440 are used to send a block of C2 bits in the second time window.

As a sub-embodiment, at least the first two of the transmitter 416, the transmit processor 415, and the controller/processor 440 are used to send the first signaling.

As a sub-embodiment, at least the first two of the transmitter 416, the transmit processor 415, and the controller/processor 440 are used to send the second signaling.

As a sub-embodiment, at least the first two of the receiver 416, the receive processor 412, and the controller/processor 440 are used to receive the first information.

As a sub-embodiment, the buffer handler 471 is used to determine C1 first type buffer sizes.

As a sub-embodiment, the buffer handler 471 is used to determine C2 buffer sizes of the second type.

Example 5

Embodiment 5 illustrates a flow chart for transmitting the first information, as shown in fig. 5. In fig. 5, base station N1 is the serving cell maintenance base station for user equipment U2. In fig. 5, the steps shown in blocks F0, F1, and F2 are optional.

For theBase station N1First information is received in step S10, C1 first-type buffer sizes are determined in step S11, C2 first-type buffer sizes are determined in step S12, first signaling is transmitted in step S13, C1 bit blocks are transmitted in a first time window in step S14, second signaling is transmitted in step S15, and C2 bit blocks are transmitted in a second time window in step S16.

For theUser equipment U2First information is transmitted in step S20, C1 first-type buffer sizes are determined in step S21, C2 first-type buffer sizes are determined in step S22, first signaling is received in step S23, C1 bit blocks are received in a first time window in step S24, second signaling is received in step S25, and C2 bit blocks are received in a second time window in step S26.

In embodiment 5, each of the C1 bit blocks includes a positive integer number of bits, the C1 bit blocks each belong to a first transport block, and the C1 is a positive integer; the time length of the first time window is equal to the first time length; { upper limit of the number of bits that the first transport block can contain, the first time length }, at least one of which is used to determine the C1 first-type buffer sizes, the C1 first-type buffer sizes and the C1 bit blocks have a one-to-one correspondence, and the C1 is a positive integer; the first time length is equal to one of K candidate time lengths, any two of the K candidate time lengths are different, and K is a positive integer greater than 1. The time length of the second time window is equal to a second time length, the second time length is one of the K alternative time lengths, and the second time length is different from the first time length; the first transport block and the second transport block correspond to a first size and a second size, respectively, the first size is not less than a sum of the C1 first-class buffer sizes, the first size is used to determine the C1 first-class buffer sizes; the maximum number of HARQ processes for the first length of time is a first integer and the maximum number of HARQ processes for the second length of time is a second integer; the first size is related to at least one of { the first integer, the second integer }, and the second size is related to at least one of { the first integer, the second integer }. The second transport block includes C2 bit blocks, each bit block of the C2 bit blocks includes a positive integer of bits, at least one of { an upper limit of a number of bits that the second transport block can contain, the second time length } is used to determine the C2 second-class buffer sizes, the C2 second-class buffer sizes are in one-to-one correspondence with the C2 bit blocks, and the C2 is a positive integer. A first bit block is one of the C1 bit blocks, the number of bits in the first bit block stored by the user equipment U2 is not less than a first storage block size when transmission of the first bit block is not correctly received, a first buffer size is used to determine the first storage block size, and the first buffer size is the first buffer size corresponding to the first bit block among the C1 first buffer sizes. The C1 bit block generating a first wireless signal having a duration in the time domain equal to the first length of time; the first length of time corresponds to a first clipping factor, and the first size is associated with the first clipping factor. The second transport block comprises a block of C2 bits, the block of C2 bits generating a second wireless signal, a duration of the second wireless signal in a time domain being the second length of time; the second length of time corresponds to a second clipping factor, and the second size is associated with at least one of { the first clipping factor, the second clipping factor }. The first signaling is used to determine configuration information for the first wireless signal, the configuration information including at least one of { occupied time domain resources, occupied frequency domain resources, MCS }. The second signaling is used to determine configuration information for the second wireless signal, the configuration information including at least one of { occupied time domain resources, occupied frequency domain resources, MCS }. The first information is used to determine that the user equipment U2 is capable of receiving the first transport block and the second transport block in a first time unit, the first time unit including the first time window and the second time window.

As a sub-embodiment, the second type of buffer size is not larger than K in TS 36.212 and TS 36.213_w。

As an additional embodiment of this sub-embodiment, the K_WIs the size of the maximum circular buffer allocated to the bit block corresponding to the second type of buffer size.

As a sub-embodiment, the second bit block is one of the C2 bit blocks, when the transmission of the second bit block is not correctly received, the number of bits in the second bit block stored by the user equipment U2 is not smaller than a second storage block size, a second buffer size is used to determine the second storage block size, and the second buffer size is the second-type buffer size corresponding to the second bit block in the C2 second-type buffer sizes.

As an additional embodiment of this sub-embodiment, the second cache size used to determine the second storage block size means: the second storage block size is equal to the smaller of { the second cache size, a product of the second size and a first coefficient }.

As an example of this subsidiary embodiment, said first coefficient is equal to a quotient of a second coefficient divided by the number of Serving cells (Serving cells) simultaneously supported by said user equipment U2.

As a special case of this example, the second coefficient is equal to a quotient of a maximum Soft Channel bit number (Soft Channel Bits) supported by the user equipment U2 and a maximum Soft Channel bit number corresponding to Category indicated by the user equipment U2.

As a special case of this example, the second coefficient is equal to 1.

As a sub-embodiment, the second type of buffer size corresponds to N in TS 36.212 and TS 36.213_cb。

As a sub-embodiment, the second time window overlaps the first time window in the time domain, and the user equipment U2 receives the first bit block and the second bit block simultaneously in the overlapping portion.

As a sub-embodiment, the second time window and the first time window do not overlap in the time domain, the second time window and the first time window belong to a first time unit, and the duration of the first time unit in the time domain is not less than 1ms and not more than 8 ms.

As a sub-embodiment, the maximum number of HARQ processes for the first time length is a first integer, which means: the first time window belongs to a first time unit in which the user equipment U2 supports at most the first integer number of processes based on the first length of time.

As a sub-embodiment, the maximum number of HARQ processes for the second time length is a second integer refers to: the second time window belongs to a first time unit in which the user equipment U2 supports at most the second integer number of processes based on the second length of time.

As a subsidiary embodiment of the two sub-embodiments described above, the duration of the first time unit in the time domain is one of {1ms, 2ms, 4ms, 8ms, 16ms }.

As a sub-embodiment, the first storage block size is n in TS 36.213_SB。

As a sub-embodiment, the first cache size used to determine the first storage block size refers to: the first storage block size is equal to the smaller of { the first cache size, a product of the first size and a first coefficient }.

As an additional embodiment of this sub-embodiment, the first coefficient is equal to a quotient obtained by dividing a second coefficient by the number of serving cells simultaneously supported by the user equipment U2.

As an example of this subsidiary embodiment, the second coefficient is equal to a quotient of a maximum Soft Channel Bits number (Soft Channel Bits) supported by the user equipment U2 and a maximum Soft Channel Bits number corresponding to Category indicated by the user equipment U2.

As an example of this subsidiary embodiment, said second coefficient is equal to 1.

As a sub-embodiment, the first clipping factor relates to a maximum TBS supported by the first wireless signal.

As a sub-embodiment, the first clipping factor is related to the first length of time.

As a sub-embodiment, the first clipping factor is configurable.

As a sub-embodiment, the first clipping factor is related to a sub-carrier spacing corresponding to the first wireless signal.

As a sub-embodiment, the first integer is equal to the maximum number of HARQ processes supported at the user equipment U2 for the first length of time.

As an additional embodiment of this sub-embodiment, the first integer is configurable.

As a subsidiary embodiment of this sub-embodiment, the duration of said first time unit is one of {1ms, 2ms, 4ms, 8ms, 16ms }.

As an additional embodiment of this sub-embodiment, the first integer is equal to one of {2,4, 8,16,32 }.

As a sub-embodiment, the user equipment U2 only receives wireless signals based on the first length of time in the first time unit in the present application, and the first size is determined by the following formula:

wherein the content of the first and second substances,

is the first size, N_softIs the maximum soft channel bit number corresponding to the Category indicated by the user equipment U2, and K is the maximum soft channel bit number corresponding to the Category indicated by the user equipment U2_CIn relation to Category indicated by the user equipment U2, the K_MIMOIs the maximum number of codewords (codewords) supported by the user equipment U2 for the user equipment U2, the

Is a first integer, said

Is the first clipping factor, the M_limitIs stationary.

As an additional embodiment of this sub-embodiment, the

Is a decimal fraction of not more than 1.

As an additional embodiment of this sub-embodiment, the user equipment U2 uses a single codeword in space division multiplexing, and K is the same as K_MIMOEqual to 1; the user equipment U2 adopts double code words in space division multiplexing, K_MIMOEqual to 2.

As an additional embodiment of this sub-embodiment, the M_limitIs one of {4,8,16,32 }.

As an additional embodiment of this sub-embodiment, the first cache size is determined by the following equation:

wherein, K is_wIs the size of the maximum circular buffer allocated to the bit block corresponding to the first type of buffer size.

As an example of this subsidiary embodiment, said first memory block size is determined by the following formula:

wherein X is the second coefficient, the

Is the number of serving cells configured downstream by the user equipment U2.

As a sub-embodiment, the Physical layer Channel corresponding to the first wireless signal is a Short Latency Physical Downlink Shared Channel (sPDSCH).

As a sub-embodiment, the second clipping factor relates to a maximum TBS supported by the second wireless signal.

As a sub-embodiment, the second clipping factor is related to the second length of time.

As a sub-embodiment, the second clipping factor is configurable.

As a sub-embodiment, the second integer is equal to the number of HARQ processes supported in the first time unit for the second time duration.

As an additional embodiment of this sub-embodiment, the second integer is configurable.

As an additional embodiment of this sub-embodiment, said second integer is equal to one of {2,4, 8,16,32 }.

As a sub-embodiment, the user equipment U2 only receives the wireless signal for the first length of time and the wireless signal for the second length of time in the first time unit in this application, the first wireless signal belongs to the wireless signal for the first length of time, the second wireless signal belongs to the wireless signal for the second length of time; the first size and the second size are respectively determined by the following formulas:

wherein N is_softIs the maximum soft channel bit number corresponding to the Category indicated by the user equipment U2, and K is the maximum soft channel bit number corresponding to the Category indicated by the user equipment U2_CIn relation to Category indicated by the user equipment U2, the K_MIMOIs the maximum number of codewords supported by the user device U2 for the user device U2, the

Is the first size, the

Is a first integer, said

Is the first clipping factor, the

Is fixed; the above-mentioned

Is the second size, the

Is a second integer, said

Is the second clipping factor, the

Is stationary.

As an additional embodiment of this sub-embodiment, the

And

are all decimal numbers not greater than 1.

As an additional embodiment of this sub-embodiment, the

Is one of {4,8,16,32 }.

As an additional embodiment of this sub-embodiment, the

Is one of {4,8,16,32 }.

As an additional embodiment of this sub-embodiment, the

Is one of {4,8,16,32 }.

As an additional embodiment of this sub-embodiment, the

Is one of {4,8,16,32 }.

As an additional embodiment of this sub-embodiment, the first length of time is 1ms, and the second length of time is 1ms

Equal to 8, said

Is equal to 1, said

Equal to 8.

As an additional embodiment of this sub-embodiment, the second length of time is 1ms, and the second length of time is longer than the first length of time

Equal to 8, said

Is equal to 1, said

Equal to 8.

wherein X is a second coefficient, the

Is the number of serving cells configured downstream by the user equipment U2.

As an additional embodiment of this sub-embodiment, the second buffer size in the present application is determined by the following formula:

wherein, K is_wIs the size of the maximum circular buffer allocated to the bit block corresponding to the second type of buffer size, and C2 is the number of bit blocks included in the second transport block in this application.

As a sub-embodiment, the user equipment U2, in the first time unit in this application, in addition to receiving the wireless signals for the first time length and the wireless signals for the second time length, also supports receiving Y types of first type wireless signals, where the Y types of first type wireless signals correspond to Y target time lengths; the Y is not greater than (K-2), and the Y target time lengths belong to the K alternative time lengths; any one of the Y target time lengths, the target time length not being equal to the first time length, any one of the Y target time lengths, the target time length not being equal to the second time length; the first wireless signal belongs to the wireless signal for the first length of time, and the second wireless signal belongs to the wireless signal for the second length of time; the Y target time lengths correspond to Y target clipping factors and Y target integers; the first size and the second size are respectively determined by the following formulas:

wherein N is_softIs the maximum soft channel bit number corresponding to the Category indicated by the user equipment U2, and K is the maximum soft channel bit number corresponding to the Category indicated by the user equipment U2_CIn relation to Category indicated by the user equipment U2, the K_MIMOIs the maximum code for the user equipment U2 supported by the user equipment U2Number of words, the

Is the first size, the

Is a first integer, said

Is the first clipping factor, the

Is fixed; the above-mentioned

Is the second size, the

Is a second integer, said

Is the second clipping factor, the

Is fixed; the above-mentioned

Is the ith said target clipping factor, said M, of said Y target clipping factors_iIs the ith said target integer of said Y target integers, said

Is stationary.

As an additional embodiment of this sub-embodiment, the

The above-mentioned

And said

Are all decimal numbers not greater than 1.

As an additional embodiment of this sub-embodiment, the

Is one of {4,8,16,32 }.

As an additional embodiment of this sub-embodiment, the

Is one of {4,8,16,32 }.

As an additional embodiment of this sub-embodiment, the

Is one of {4,8,16,32 }.

As an additional embodiment of this sub-embodiment, the

Is one of {4,8,16,32 }.

As an additional embodiment of this sub-embodiment, the

Is one of {4,8,16,32 }.

As an additional embodiment of this sub-embodiment, the

Is one of {4,8,16,32 }.

As an additional embodiment of this sub-embodimentThe first time length is 1ms, the

Equal to 8, said

Is equal to 1, said

Equal to 8.

Equal to 8, said

Is equal to 1, said

Equal to 8.

wherein X is a second coefficient, the

Is the number of serving cells configured downstream by the user equipment U2.

As a sub-embodiment, the N in this application_so_ftIs one of {35982720, 47431680, 303562752, 14616576, 19488768, 7308288, 3654144 }.

As a sub-embodiment, the first signaling is physical layer signaling.

As a sub-embodiment, the first signaling is higher layer signaling.

As a sub-embodiment, the first signaling is a downlink Grant (Grant).

As a sub-embodiment, the first signaling is a DCI (Downlink Control Information).

As a sub-embodiment, the first signaling is an sPDCCH (Short Latency Physical Downlink Control Channel).

As a sub-embodiment, the first signaling is a PDCCH (Physical Downlink Control Channel).

As a sub-embodiment, the second signaling is physical layer signaling.

As a sub-embodiment, the second signaling is higher layer signaling.

As a sub-embodiment, the second signaling is a downlink grant.

As a sub-embodiment, the second signaling is a DCI.

As a sub-embodiment, the second signaling is an sPDCCH.

As a sub-embodiment, the second signaling is a PDCCH.

As a sub-embodiment, the second time length is equal to the duration of 14 time-domain consecutive multicarrier symbols.

As a sub-embodiment, the Physical Channel corresponding to the first wireless signal is a PDSCH (Physical Downlink Shared Channel).

As a sub-embodiment, the Physical Channel corresponding to the first wireless signal is a SPDSCH (Short Latency Physical Downlink Shared Channel).

As a sub-embodiment, the physical channel corresponding to the second wireless signal is a PDSCH.

As a sub-embodiment, the physical channel corresponding to the second wireless signal is SPDSCH.

As a sub-embodiment, the duration of the first time unit in the time domain is one of {1ms, 2ms, 3ms, 4ms, 5ms, 6ms, 7ms, 8ms }.

As a sub-embodiment, the fact that the user equipment U2 is capable of receiving the first transport block and the second transport block in a first time unit means that: the first time window and the second time window overlap in the time domain, the user equipment U2 receiving the first transport block and the second transport block simultaneously in the overlapping portion of the first time window and the second time window.

As a sub-embodiment, the fact that the user equipment U2 is capable of receiving the first transport block and the second transport block in a first time unit means that: the first time window and the second time window are orthogonal in the time domain, the user equipment U2 receives the first transport block in the first time window, and the user equipment U2 receives the second transport block in the second time window.

As a sub-embodiment, the first information is used to determine Category of the user equipment U2.

As a sub-embodiment, the first information is used to determine the Capability of the user equipment U2.

As an embodiment, the C1 bit blocks are sequentially subjected to Channel Coding (Channel Coding), Rate Matching (Rate Matching), and Concatenation (Concatenation) to obtain the first wireless signal.

As an embodiment, the C2 bit blocks respectively sequentially undergo Channel Coding (Channel Coding), Rate Matching (Rate Matching), and Concatenation (Concatenation) to obtain the second wireless signal.

Example 6

Example 6 illustrates a schematic diagram of a first time window and a second time window, as shown in fig. 6. The first time window and the second time window shown in fig. 6 overlap in the time domain, and both the first time window and the second time window belong to a first time unit.

As a sub-embodiment, the duration of the first time window in the time domain is not equal to the duration of the second time window in the time domain.

As a sub-embodiment, the first time window corresponds to a first type STTI, the second time window corresponds to a second type STTI, and the number of multicarrier symbols included in the first type STTI is not equal to the number of multicarrier symbols included in the second type STTI.

As an additional embodiment of this sub-embodiment, the number of multicarrier symbols is equal to one of {1,2,4,7 }.

As a sub-embodiment, the first time window corresponds to an STTI, and the second time window corresponds to a TTI; or the first time window corresponds to one TTI, and the second time window corresponds to one STTI.

As a sub-embodiment, the first time unit is one TTI.

As a sub-embodiment, the first time unit is 8ms continuous in the time domain.

As a sub-embodiment, the first integer in this application is a maximum number of TBs of independent transmission based on the first time window that the user equipment can support in the first time unit.

As a sub-embodiment, the second integer in this application is a maximum number of TBs of independent transmission based on the second time window that the user equipment can support in the first time unit.

Example 7

Example 7 illustrates a schematic diagram of another first time window and second time window, as shown in fig. 6. The first time window and the second time window shown in fig. 7 are orthogonal in the time domain, and both the first time window and the second time window belong to a first time unit.

As a sub-embodiment, the first time unit is one TTI.

As a sub-embodiment, the first time unit is 8ms continuous in the time domain.

Example 8

Embodiment 8 illustrates a schematic diagram of C1 first-class cache sizes, as shown in fig. 8. The diagonal filled rectangular cells shown in FIG. 8 correspond to the C1 first-type cache sizes described herein, and the lattice filled rectangular cells shown correspond to the C2 second-type cache sizes described herein; the thick solid line frame rectangular grid corresponds to the first cache size in the application, and the thick dotted line frame rectangular grid corresponds to the second cache size in the application.

As a sub-embodiment, the C1 first-type buffer sizes constitute the first size in this application, and the C1 corresponds to a maximum number of code blocks supported by the ue for the TB of the first time length.

As a sub-embodiment, the C2 second-type buffer sizes form the second size in this application, and the C2 corresponds to a maximum number of code blocks supported by the ue for the TB of the second time length.

As a sub embodiment, the first cache size in this application is one of the C1 first-class cache sizes, and is the first-class cache size corresponding to the first bit block in this application.

As a sub embodiment, the second buffer size in this application is one of the C2 second-class buffer sizes, and is the second-class buffer size corresponding to the second bit block in this application.

Example 9

Embodiment 9 is a block diagram illustrating a processing apparatus in a UE, as shown in fig. 9. In fig. 9, the UE processing apparatus 900 is mainly composed of a first receiver module 901 and a first transmitter module 902.

-a first receiver module 901 determining C1 first type buffer sizes and receiving C1 blocks of bits in a first time window;

-a first transmitter module 902, transmitting first information;

in embodiment 9, each of the C1 bit blocks includes a positive integer number of bits, the C1 bit blocks each belong to a first transport block, and the C1 is a positive integer; the time length of the first time window is equal to the first time length; { upper limit of the number of bits that the first transport block can contain, the first time length }, at least one of which is used to determine the C1 first-type buffer sizes, the C1 first-type buffer sizes and the C1 bit blocks have a one-to-one correspondence, and the C1 is a positive integer; the first time length is equal to one of K alternative time lengths, any two of the K alternative time lengths are different, and K is a positive integer greater than 1; the first information is used to determine that the user equipment is capable of receiving the first transport block and the second transport block in a first time unit, the first time unit comprising the first time window and the second time window.

As a sub-embodiment, the first receiver module 901 receives a second transport block in a second time window; the time length of the second time window is equal to a second time length, the second time length is one of the K alternative time lengths, and the second time length is different from the first time length; the first transport block and the second transport block correspond to a first size and a second size, respectively, the first size is not less than a sum of the C1 first-class buffer sizes, the first size is used to determine the C1 first-class buffer sizes; the maximum number of HARQ processes for the first length of time is a first integer and the maximum number of HARQ processes for the second length of time is a second integer; the first size is related to at least one of { the first integer, the second integer }, and the second size is related to at least one of { the first integer, the second integer }.

As a sub-embodiment, the first receiver module 901 determines C2 second-type buffer sizes; the second transport block includes C2 bit blocks, each bit block of the C2 bit blocks includes a positive integer of bits, at least one of { an upper limit of a number of bits that the second transport block can contain, the second time length } is used to determine the C2 second-class buffer sizes, the C2 second-class buffer sizes are in one-to-one correspondence with the C2 bit blocks, and the C2 is a positive integer.

As a sub-embodiment, a first bit block is one of the C1 bit blocks, when a transmission of the first bit block is not correctly received, a number of bits in the first bit block stored by the user equipment is not smaller than a first storage block size, a first buffer size is used to determine the first storage block size, and the first buffer size is the first buffer size corresponding to the first bit block among the C1 first buffer sizes.

As a sub-embodiment, the C1 bit block generates a first wireless signal having a duration in the time domain equal to the first length of time; the first length of time corresponds to a first clipping factor, and the first size is associated with the first clipping factor.

As a sub-embodiment, the second transport block comprises a C2 bit block, the C2 bit block generating a second wireless signal, a duration of the second wireless signal in a time domain being the second length of time; the second length of time corresponds to a second clipping factor, and the second size is associated with at least one of { the first clipping factor, the second clipping factor }.

As a sub-embodiment, the first receiver module 901 receives a first signaling; the first signaling is used to determine configuration information for the first wireless signal, the configuration information including at least one of { occupied time domain resources, occupied frequency domain resources, MCS }.

As a sub-embodiment, the first receiver module 901 receives a second signaling; the second signaling is used to determine configuration information for the second wireless signal, the configuration information including at least one of { occupied time domain resources, occupied frequency domain resources, MCS }.

As a sub-embodiment, the first receiver module 901 includes at least three of { receiver 456, receive processor 452, buffer processor 441, controller/processor 490} in embodiment 4.

As a sub-embodiment, the first transmitter module 901 comprises at least two of { transmitter 456, transmit processor 455, controller/processor 490} in embodiment 4.

Example 10

Embodiment 10 is a block diagram illustrating a processing apparatus in a base station device, as shown in fig. 10. In fig. 10, the base station device processing apparatus 1000 is mainly composed of a second transmitter module 1001 and a second receiver module 1002.

-a second transmitter module 1001 determining C1 first type buffer sizes and transmitting C1 bit blocks in a first time window;

a second receiver module 1002 receiving the first information;

in embodiment 10, each of the C1 bit blocks includes a positive integer number of bits, the C1 bit blocks each belong to a first transport block, and the C1 is a positive integer; the time length of the first time window is equal to the first time length; { upper limit of the number of bits that the first transport block can contain, the first time length }, at least one of which is used to determine the C1 first-type buffer sizes, the C1 first-type buffer sizes and the C1 bit blocks have a one-to-one correspondence, and the C1 is a positive integer; the first time length is equal to one of K alternative time lengths, any two of the K alternative time lengths are different, and K is a positive integer greater than 1; the first information is used to determine that a sender of the first information is capable of receiving the first transport block and the second transport block in a first time unit, the first time unit including the first time window and the second time window.

As a sub-embodiment, the second transmitter module 1001 transmits a second transport block in a second time window; the time length of the second time window is equal to a second time length, the second time length is one of the K alternative time lengths, and the second time length is different from the first time length; the first transport block and the second transport block correspond to a first size and a second size, respectively, the first size is not less than a sum of the C1 first-class buffer sizes, the first size is used to determine the C1 first-class buffer sizes; the maximum number of HARQ processes for the first length of time is a first integer and the maximum number of HARQ processes for the second length of time is a second integer; the first size is related to at least one of { the first integer, the second integer }, and the second size is related to at least one of { the first integer, the second integer }.

As a sub-embodiment, the second transmitter module 1001 determines C2 second-type buffer sizes; the second transport block includes C2 bit blocks, each bit block of the C2 bit blocks includes a positive integer of bits, at least one of { an upper limit of a number of bits that the second transport block can contain, the second time length } is used to determine the C2 second-class buffer sizes, the C2 second-class buffer sizes are in one-to-one correspondence with the C2 bit blocks, and the C2 is a positive integer.

As a sub-embodiment, a first bit block is one of the C1 bit blocks, when a transmission of the first bit block is not correctly received, the number of bits in the first bit block stored by a first terminal is not smaller than a first storage block size, a first buffer size is used to determine the first storage block size, and the first buffer size is the first buffer size corresponding to the first bit block among the C1 first buffer sizes; the first terminal belongs to a recipient of the first bit block.

As a sub-embodiment, the second transmitter module 1001 includes at least three of { transmitter 416, transmission processor 415, buffer processor 471, controller/processor 440} in embodiment 4.

As a sub-embodiment, the second receiver module 1002 includes at least the first two of { receiver 416, receive processor 412, controller/processor 440} in embodiment 4.

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. User equipment, terminal and UE in this application include but not limited to unmanned aerial vehicle, Communication module on the unmanned aerial vehicle, remote control plane, the aircraft, small aircraft, the cell-phone, the panel computer, the notebook, vehicle-mounted Communication equipment, wireless sensor, network card, thing networking terminal, the RFID terminal, NB-IOT terminal, Machine Type Communication (MTC) terminal, eMTC (enhanced MTC) terminal, the data card, network card, vehicle-mounted Communication equipment, low-cost cell-phone, equipment such as low-cost panel computer. 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, a gNB (NR node B), a TRP (Transmitter Receiver Point), 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

1. A method in a user equipment used for low latency communication, comprising:

-determining C1 first type cache sizes;

-receiving a block of C1 bits in a first time window;

wherein each of the C1 bit blocks comprises a positive integer number of bits, the C1 bit blocks each belong to a first transport block, the C1 is a positive integer; the time length of the first time window is equal to the first time length; { upper limit of the number of bits that the first transport block can contain, the first time length }, at least one of which is used to determine the C1 first-type buffer sizes, the C1 first-type buffer sizes and the C1 bit blocks have a one-to-one correspondence, and the C1 is a positive integer; the first time length is equal to one of K alternative time lengths, any two of the K alternative time lengths are different, and K is a positive integer greater than 1; the first type cache size is related to a Category (Category) of the user equipment; the C1 bit blocks correspond to C1 Code blocks (Code blocks), respectively.

2. A method in a base station used for low-latency communications, comprising:

-determining C1 first type cache sizes;

-transmitting a block of C1 bits in a first time window;

3. A user equipment for use in low latency communications, comprising:

4. The UE of claim 3, wherein the first receiver module receives a second signaling and the first receiver module receives a second transmission block in a second time window; the time length of the second time window is equal to a second time length, the second time length is one of the K alternative time lengths, and the second time length is different from the first time length; the first transport block and the second transport block correspond to a first size and a second size, respectively, the first size is not less than a sum of the C1 first-class buffer sizes, the first size is used to determine the C1 first-class buffer sizes; the maximum number of HARQ processes for the first length of time is a first integer and the maximum number of HARQ processes for the second length of time is a second integer; the first size is related to at least one of { the first integer, the second integer }, and the second size is related to at least one of { the first integer, the second integer }; the second signaling is used to determine configuration information for the second wireless signal, the configuration information including at least one of { occupied time domain resources, occupied frequency domain resources, MCS }.

5. The UE of claim 3 or 4, wherein a first bit block is one of the C1 bit blocks, wherein when a transmission of the first bit block is not correctly received, a number of bits in the first bit block stored by the UE is not smaller than a first storage block size, wherein a first buffer size is used to determine the first storage block size, and wherein the first buffer size is the first buffer size corresponding to the first bit block from among the C1 first buffer sizes.

6. The UE of claim 4, wherein the C1 bit block generates a first radio signal, and wherein a duration of the first radio signal in a time domain is equal to the first time length; the first length of time corresponds to a first clipping factor, and the first size is associated with the first clipping factor.

7. The user equipment of claim 6, wherein the second transport block comprises a C2 bit block, wherein the C2 bit block generates a second wireless signal, wherein a duration of the second wireless signal in a time domain is the second length of time; the second length of time corresponds to a second clipping factor, and the second size is associated with at least one of { the first clipping factor, the second clipping factor }.

8. The user equipment according to any of claims 3 to 7, wherein the first receiver module receives first signaling; the first signaling is used to determine configuration information for the first wireless signal, the configuration information including at least one of { occupied time domain resources, occupied frequency domain resources, MCS }; the first signaling is a physical layer signaling.

9. The user equipment according to any of claims 4 to 8, characterized by comprising:

a first transmitter module that transmits first information;

10. The UE of any one of claims 3 to 9, wherein the first buffer size is not larger than K in TS 36.212 and TS 36.213_w。

11. The UE of any of claims 3 to 10, wherein the first buffer size corresponds to N in TS 36.212 and TS 36.213_cb。

12. The user equipment according to any of claims 3-11, wherein the K candidate time lengths comprise at least one of { duration of 1 multicarrier symbol, duration of 2 time-domain consecutive multicarrier symbols, duration of 4 time-domain consecutive multicarrier symbols, duration of 7 time-domain consecutive multicarrier symbols }; and the K candidate lengths of time comprise 1 millisecond.

13. The UE of any one of claims 3 to 13, wherein the UE receives only the wireless signals based on the first time duration in the first time unit, and wherein the first size is determined by the following equation:

wherein the content of the first and second substances,

is a first size, N_so_ftIs the maximum soft channel bit number corresponding to the Category indicated by the user equipment, and the K is_CIn relation to Category indicated by the user equipment, the K_MIMOIs the maximum number of codewords supported by the user equipment for the user equipment, the

Is a first integer, said

Is the first clipping factor, the M_limitIs stationary; the above-mentioned

Is a number not greater than 1.

14. The UE of claim 13, wherein the UE employs a single codeword in spatial multiplexing, and wherein K is_MIMOEqual to 1; the user equipment U2 adopts double code words in space division multiplexing, K_MIMOEqual to 2.

15. The user equipment according to claim 13 or 14, wherein the first buffer size is determined by the following formula:

16. A base station apparatus used for low-delay communication, characterized by comprising: