CN113596817B - Multi-terminal physical resource allocation method of wireless access point - Google Patents
Multi-terminal physical resource allocation method of wireless access point Download PDFInfo
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- CN113596817B CN113596817B CN202110865671.4A CN202110865671A CN113596817B CN 113596817 B CN113596817 B CN 113596817B CN 202110865671 A CN202110865671 A CN 202110865671A CN 113596817 B CN113596817 B CN 113596817B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
- H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
- H04W72/563—Allocation or scheduling criteria for wireless resources based on priority criteria of the wireless resources
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention discloses a multi-terminal physical resource allocation method of a wireless access point, wherein a transmission unit corresponding to a terminal has a plurality of grades, when resources are allocated, if resources have conflict, a transmission unit at a lower grade can punch resources in a transmission unit at a higher grade to solve the conflict, and the transmission resource is reallocated for conflict transmission when the conflict at the same grade exists. The control channel puncturing reallocates the transmission resources, so that the physical resource allocation of the control channel is more flexible, which is important to reduce the conflict rate in the system. The physical resources are punched according to conflict according to the capability of the current terminal and the capability of adapting to different channel conditions, and the terminal capacity of the wireless access point can be greatly improved.
Description
Technical Field
The invention relates to the technical field of wireless communication, in particular to a multi-terminal physical resource allocation method of a wireless access point in a wide area internet of things.
Background
The rapid development of the internet of things in recent years has led to the attention as the next strong growth point of the information industry, which is characterized by wide area coverage, low power consumption, large connections and low cost. Aiming at the characteristics of large connection, the current technology based on 4G and 5G is based on large bandwidth and high complexity, which makes the large connection difficult to be compatible. The physical resource scheme in the frame structure of wireless transmission is mainly to allocate by taking time-domain subframes and time slots as units, in the same subframe, only data of one terminal is scheduled to be transmitted, whether the scheduled data is sent or not is determined by detecting a control channel, and the transmission position is a few symbols at the head of the subframe, so that the physical resource allocation mode is inflexible.
Disclosure of Invention
The invention aims at: in order to solve the above-mentioned problems, a method for allocating physical resources of multiple terminals in a wireless access point is provided, so that data channels and control channels of different terminals can be transmitted in the same transmission unit, and the utilization rate of wireless resources and the capacity of communication terminals in the system are improved.
The technical scheme adopted by the invention is as follows:
a multi-terminal physical resource allocation method of wireless access point, the transmission unit corresponding to the terminal is divided into several grades, a plurality of transmission units of lower grade form a transmission unit of higher grade, the transmission unit is used as the physical resource of terminal transmission data; according to the transmission capability of the terminal, respectively configuring the types of transmission units used by the channels of each type of the terminal;
the wireless access point allocates transmission units for different terminals according to the upper layer scheduling, and decides whether the current transmission unit is perforated according to the channel type and the code rate. If the current transmission unit is allocated with a data channel and adopts a modulation and coding strategy under a better channel condition and the code rate is higher, the current transmission unit cannot be perforated, and the terminal for perforation transmission under the current transmission unit needs to reselect resources under other peer transmission units or discard the resources. If the allocated transmission units do not have conflict, the terminal fully occupies the allocated transmission units; if there is a collision with the allocated transmission unit, then: for the conflict of different levels of transmission units, the transmission unit with the lower level punches resources in the transmission unit with the higher level where the conflict occurs; for the collision of the same-level transmission units, reallocating the transmission units to the terminal with the collision at a preset position according to the channel type of the terminal;
if the wireless access point has conflict in the scheduling of the transmission units, the currently scheduled transmission units are punched step by step from the belonging grade to the direction of the low-grade transmission units until the transmission unit of the lowest grade where the conflict occurs belongs to the last grade; and in the transmission units with the conflict, according to the channel types of the terminals with the conflict, the corresponding transmission units are allocated to the terminals with the conflict again in the preset position range of the transmission units with the conflict.
Further, the above collision for peer transmission units, reallocating transmission units at predetermined positions for the terminal having the collision according to the channel type of the terminal, includes: for collisions between data channels, reassigning to other transmission units of the colliding terminal or discarding at a predetermined position; for control channel collision, the control channel collision is reassigned to other transmission units in the allocable transmission resource of the collision terminal or discarded; for data channel and control channel collisions, the data channel is preferentially allocated, and the control channel is reallocated to a collision terminal, so that other transmission units in the transmission resource can be allocated or discarded.
Further, the transmission units corresponding to the terminals are classified into three classes: the first level transmission unit, the second level transmission unit and the third level transmission unit, wherein a plurality of third level transmission units form a second level transmission unit, and a plurality of second level transmission units form a first level transmission unit.
Further, the transmission capability of the terminal is classified into two classes: a first level transmission capability and a second level transmission capability; the configuration of the transmission unit types used by the channels of each type of terminal according to the transmission capability of the terminal includes: for the terminal of the first level transmission capability, the first rule is used for configuring the used transmission unit types for the data channel and the control channel of the terminal respectively, and for the terminal of the second level transmission capability, the second rule is used for configuring the used transmission unit types for the data channel and the control channel of the terminal respectively.
Further, the types of transmission units configured for the data channel and the control channel of the terminal according to the first rule are as follows: configuring a data channel of the terminal to use a first-level transmission unit, and configuring a control channel to use a second-level transmission unit; the types of transmission units respectively used for the configuration of the data channel and the control channel of the terminal by the second rule are as follows: the data channel configuring the terminal uses a second level transmission unit and the control channel uses a third level transmission unit.
Further, the above conflict for transmission units of different levels, where the transmission unit of the lower level punches the resource in the transmission unit of the higher level where the conflict occurs, includes the following scenarios:
A. the first level transmission unit collides with the second level transmission unit: punching at least one second-level transmission unit in the first-level transmission units to transmit the second-level transmission units of the terminals with collision;
B. the second level transmission unit collides with the third level transmission unit: punching at least one third-level transmission unit in the second-level transmission units to transmit the third-level transmission units of the terminals with collision;
C. the first level transmission unit collides with the third level transmission unit: punching at least one second-level transmission unit in the first-level transmission units, wherein each punched second-level transmission unit punches at least one third-level transmission unit to transmit the third-level transmission units of the terminals with conflicts;
D. the first and second and third level transmission units collide: punching at least one second-level transmission unit in the first-level transmission units to transmit the second-level transmission units of the terminals with collision; and punching at least one third-level transmission unit in the punched second-level transmission units to transmit the third-level transmission units of the terminal with collision.
Further, in scenario C, each of the punctured second level transmission units punctures all third level transmission units to transmit the third level transmission units of the terminal that has collided.
Further, if the wireless access point has conflict in the scheduling of the transmission units, the currently scheduled transmission unit is punched step by step from the belonging level to the direction of the low-level transmission unit until the transmission unit of the lowest level where the conflict occurs belongs to the last level; in the transmission unit with conflict, according to the channel type of the terminal with conflict, the corresponding transmission unit is allocated again to the terminal with conflict at the preset position of the transmission unit with the conflict, which comprises the following scenes:
a. the first level transmission unit currently has a data channel for scheduling transmission of a certain terminal, and at least one other terminal has a data channel or a control channel based on the length of the second level transmission unit: punching at least one second-level transmission unit of the current first-level transmission unit, selecting a second-level transmission unit with a preset position from the current first-level transmission channel, distributing the second-level transmission unit to the other terminals, reserving data channel transmission if the distributed second-level transmission unit has a scheduling conflict between a data channel and a control channel based on the length of the second-level transmission unit, and re-distributing other distributed second transmission units for the conflicted control channel in the current first-level transmission unit for transmission;
b. the current second level transmission unit has a data channel or a control channel for scheduling transmission of a certain terminal, and at least one other terminal also has a control channel based on the third level transmission unit: punching at least one third-level transmission unit of the current second-level transmission unit, and selecting the third-level transmission unit from the current second-level transmission unit to be distributed to the other terminals;
c. the current first level transmission unit has a data channel for scheduling transmission of a certain terminal, and at least one other terminal has a control channel based on the length of the third level transmission unit: punching at least one third-level transmission unit in at least one second-level transmission unit in the current first-level transmission units, and selecting a third-level transmission unit with a preset position from the punched second-level transmission units to be distributed to the other terminals;
d. the first level transmission unit currently has a data channel for scheduling transmission of a certain terminal, and at least one other terminal also has a data channel and a control channel based on the length of the second level transmission unit, and the second level transmission unit which generates collision has a control channel transmission based on the length of the third level transmission unit: punching at least one second-level transmission unit in the current first-level transmission units so as to be used for channel transmission of other terminals under the second-level transmission units, punching at least one third-level transmission unit in the punched position of the second-level transmission unit, and selecting the third-level transmission unit with a preset position from the punched second-level transmission unit to be allocated to a control channel with collision.
In summary, due to the adoption of the technical scheme, the beneficial effects of the invention are as follows:
1. the invention punches and reallocates the transmission resources aiming at the transmission units with the control channels in conflict, so that the physical resource allocation of the control channels is more flexible, the conflict rate of the system can be effectively reduced, the control channels and the data channels can be transmitted in the same transmission unit, and the utilization rate of the wireless resources is improved.
2. The method of the invention can allocate transmission resources for the current terminal according to the transmission capacity and the channel type of the current terminal, adapt to the capacities of different channel conditions, and can increase the terminal capacity in the system to the greatest extent. Physical resources are obtained by punching the conflict, and redundancy of system data can be reduced.
Drawings
The invention will now be described by way of example and with reference to the accompanying drawings in which:
fig. 1 is an example of puncturing allocation of a second level transmission unit by a first level transmission unit in the event of a different level collision.
Fig. 2 is an example of puncturing allocation of a third level transmission unit by a second level transmission unit in the event of a different level collision.
Fig. 3 is an example of puncturing allocation of a third level transmission unit by a first level transmission unit in the event of a different level collision.
Fig. 4 is a nested example of puncturing the second level transmission unit by the first level transmission unit and puncturing the allocation of the third level transmission unit by the second level transmission unit in case of different levels of collision.
Fig. 5 is an example of nesting and resource reassignment of a first level transmission unit puncturing a second level transmission unit, a second level transmission unit puncturing an assigned third level transmission unit in a peer collision.
Detailed Description
All of the features disclosed in this specification, or all of the steps in a method or process disclosed, may be combined in any combination, except for mutually exclusive features and/or steps.
Any feature disclosed in this specification (including any accompanying claims, abstract) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. That is, each feature is one example only of a generic series of equivalent or similar features, unless expressly stated otherwise.
Parameter description:
AP: access Point, access Point;
DL: downlink, downlink transmission part;
m: the number of groups contained in the downlink transmission part;
n: the number of burst contained in each group;
p: the number of slots contained in each burst;
IOTE: internet of Thing Equipment, an internet of things device;
ID: identity, identification;
CCH, control CHannel;
DCH, data CHannel.
The invention divides the wireless transmission resources according to frames, subframes and symbols, and the embodiment of the invention takes three grades of transmission units as an example, and the rest grades are the same. The transmission unit corresponding to the terminal is a group-burst-slot, a plurality of slots form a burst, a plurality of bursts are transmitted to form a group, the group corresponds to a first-level transmission unit, the burst corresponds to a second-level transmission unit, and the slot corresponds to a third-level transmission unit.
And respectively configuring the types of transmission units used by the channels of each type of terminal according to the transmission capability of the terminal. Specifically, each type of channel (including a data channel and a control channel) of each terminal in each transmission capability uses the corresponding type of transmission unit in a corresponding regular configuration, but the code rate of the data channel is higher and cannot be punctured. In the embodiment of the invention, the transmission capability of the terminal is divided into two grades, and the rest grades are the same. Terminal transmission capabilities are classified into two levels, boost1 (corresponding to a first level transmission capability) and boost0 (corresponding to a second level transmission capability). The data channel of the boost1 terminal uses a group physical resource, and the control channel uses a burst physical resource; the data channel of the terminal of boost0 uses a burst physical resource, and the control channel uses a slot physical resource.
The AP allocates transmission resources to different terminals according to the upper layer scheduling, and particularly allocates corresponding transmission units at preset positions to serve as physical resources for transmitting data according to the transmission capacity and the channel type of the current terminal. If there is no collision of the allocated transmission units, the (data channel or control channel of the) terminal fully occupies the allocated transmission units. If there is a collision with the allocated transmission unit, then: for the conflict of different levels of transmission units, the transmission units with the lower level punch resources in the transmission units with the higher level, i.e. the transmission units with the lower level punch resources layer by layer to the transmission units with the higher level no matter whether the levels of the conflicting transmission units are adjacent or not. For collision of peer transmission units, reallocating the transmission units at a predetermined position for the terminal where the collision occurs according to the channel type of the terminal, including: for the collision among the data channels, the other resources are reassigned to the collision terminals for transmission or discarding; for control channel collision, the control channel collision is reassigned to other physical resources in the transmission resources of the collision terminal or discarded; for data channel and control channel collisions, the data channel is preferentially allocated, and the control channel is reallocated to the collision terminal, so that other physical resources in the transmission resources can be allocated or discarded.
For collisions of different levels of transmission units, the present embodiment exemplifies the following scenario:
group and burst conflict: and punching one or more burst transmission units in the group to transmit the burst transmission units of the conflict terminal. As shown in fig. 1, there is a DCH transmitting IOTE0 in a group with ID 0, while there are two other IOTEs in the group to transmit respective CCHs or DCHs, i.e. collisions of groups and bursts, which belong to different classes of transmission units. Burst1 and N-3 may be used for IOTE1 and IOTE2 transmissions, respectively, at this time.
Burst and slot collision: and punching one or more slots in the burst to transmit slot transmission units of the conflict terminal. As shown in fig. 2, burst 2 has a CCH or DCH transmitting IOTE0 in the group with ID M-2, while the slots in burst 2 have CCHs of other IOTEs to be transmitted, belonging to burst and slot collisions. Slot 0 may be used for IOTE1 transmissions at this time.
Group and slot conflict: punching one or more bursts in the group, wherein each burst punches one or more slots to transmit slot transmission units of the conflict terminal; in practice, all slots in the punctured burst may be punctured to allocate to conflicting terminal transmissions. As shown in fig. 3, there is a DCH transmitting IOTE0 in the group with ID 1, while there are two other iostes CCHs to transmit in the slot under burst N-3, belonging to the group and slot collision. Slot 0 and P-2 may be allocated to IOTE1 and IOTE2 transmissions, respectively, at this point.
Group and burst and slot collision: and punching one or more burst transmission units in the group to transmit the conflict terminal, and further punching one or more slots in the punched burst to transmit the slot transmission units of the conflict terminal. As shown in fig. 4, there is a DCH for transmitting IOTE0 in a group with ID 1, while there are other iostes in burst 0 and N-2 in the group to transmit respective CCHs or DCHs, and there are 2 CCHs of other iostes in burst 0 and N-2 in the current group to transmit, which belongs to the group collision with burst and slot. At this time, burst 0 and N-2 are allocated to IOTE1 and IOTE2 transmissions, while burst 0 and P-3 in burst 0 are allocated to IOTE3 and IOTE4 transmissions, respectively, and burst1 and P-1 in burst N-2 are allocated to IOTE5 and IOTE6 transmissions, respectively. Therefore, when physical transmission resources are allocated, flexible allocation is performed according to terminal capability, and when collision exists, punching resources can be performed to solve the collision and guarantee transmission, so that the overall network capacity is improved. In this embodiment, another scenario of collision between group and burst and slot is considered, as shown in fig. 5, there is a DCH for transmitting IOTE0 in the group with ID of 0, and at the same time, there is a DCH for transmitting IOTE1 and a CCH for transmitting IOTE2 in burst1 of the current group, at this time, allocation of IOTE1 and IOTE2 to IOTE0 collides, burst1 may be allocated to IOTE1 or IOTE2, but IOTE1 and IOTE2 also collide, and resources may be allocated to IOTE1 due to preferential allocation of the DCH with burst length and flexible reallocation of the CCH with burst length in the current group, and then burst1 resources may be allocated to IOTE1 and burst N-3 may be allocated to IOTE2. Furthermore, slot 1 and P-3 in burst1 have other IOTE to transmit CCH, slot 1 and P-3 can be allocated to IOTE3 and IOTE4, slot 0 of burst N-3 has 2 other IOTE CCH to transmit, slot 0 is allocated to one of the IOTE, other conflicting IOTE in the burst is allocated with other slots, slot 0 can be allocated to IOTE5, and slot P-1 can be allocated to IOTE6. Note that: at this time, if the channel condition of IOTE1 is good, and the selected transmission code rate is higher, so that the redundancy of the data channel is lower, then the puncturing cannot be performed, and at this time, the CCH alternative resources of IOTE3 and IOTE4 are sent or discarded. There is also a need for a scenario that considers the problem of preferential allocation of data channels and control channels. It follows that, in the presence of a collision of CCHs, the CCHs can be flexibly allocated to other transmission resources of the allocable resource range, which is advantageous for further reducing the collision rate.
If the wireless access point has conflict in the scheduling of the transmission units, the currently scheduled transmission units are punched step by step from the belonging grade to the direction of the low-grade transmission units until the transmission unit of the lowest grade where the conflict occurs belongs to the last grade; for example, if two adjacent transmission units collide, only the higher transmission unit is punctured, and the transmission units collide across the transmission units, among the transmission units of each collision, the transmission units of the highest transmission unit rank by rank are punctured, and the transmission units of the lowest rank of the highest transmission unit and the next highest transmission unit … … are punctured. And in the transmission units with the conflict, according to the channel types of the terminals with the conflict, the corresponding transmission units are allocated to the terminals with the conflict again at the preset positions of the transmission units with the punching. Similarly, this embodiment exemplifies the following scenario for responding to a scheduling conflict:
a. conflict scenario one: the current group has a data channel for scheduling transmission of a certain terminal, one or more other terminals punch one or more burst of the current group based on the data channel or control channel of the burst length, if the data channel and the control channel of the burst length have conflict, the data channel transmission is reserved, and the control channel reallocates other burst transmission in the group;
b. conflict scene two: the method comprises the steps that a data channel or a control channel of a certain terminal is scheduled to be transmitted in the current burst, one or more slots of the current burst are punched based on the control channel of the slot length by one or more other terminals, and the slots are selected to be allocated to a conflict control channel in the burst;
c. conflict scenario three: the current group has a data channel for scheduling transmission of a certain terminal, one or more other terminals punch one or more slots in the current group based on a control channel with slot length, and select slots in the punched slots to be allocated to a conflict control channel;
d. conflict scene four: the method comprises the steps that a current group is provided with a data channel for scheduling transmission of a certain terminal, one or more other terminals are provided with a data channel and a control channel based on burst length, the burst is provided with the control channel with slot length for transmission, one or more conflict bursts in the current group are punched for burst transmission of conflict terminals, one or more slots are punched at the punched burst position, and the slots are selected to be allocated to the conflict control channel at a preset position.
It should be noted that, in the present invention, the reallocated physical resource is usually set in advance, for example, the first idle transmission unit is selected from front to back, or the idle transmission unit is selected randomly, or other allocation rules, where the specific application rule is set according to the specific application scenario, network load, signal quality of the terminal, and the like.
The invention is not limited to the specific embodiments described above. The invention is not limited to a certain scene of communication of the Internet of things, and the invention concept can be applied to other mobile communication systems. The invention extends to any novel one, or any novel combination, of the features disclosed in this specification, as well as to any novel one, or any novel combination, of the steps of the method or process disclosed.
Claims (8)
1. A multi-terminal physical resource allocation method of wireless access point is characterized in that the transmission unit corresponding to the terminal is divided into a plurality of grades, a plurality of transmission units with a lower grade form a transmission unit with a higher grade, and the transmission unit is used as the physical resource of the terminal for transmitting data; selecting the type of a used transmission unit according to the transmission capability of the terminal and the type of a channel;
the wireless access point allocates transmission units for different terminals according to the upper layer scheduling, decides whether the current transmission unit is perforated according to the channel type and the code rate, and if the allocated transmission units have no conflict, the terminal fully occupies the allocated transmission units; if there is a collision with the allocated transmission unit, then: for the conflict of different levels of transmission units, the transmission unit with the lower level punches resources in the transmission unit with the higher level where the conflict occurs; for the conflict of the same-level transmission units, the transmission units are redistributed to the terminals with the conflict at the preset positions according to the channel types of the terminals or conflict back-off is carried out according to the upper layer rules, and resource allocation application is restarted;
if the wireless access point has conflict in the scheduling of the transmission units, the currently scheduled transmission units are punched step by step from the belonging grade to the direction of the low-grade transmission units until the transmission unit of the lowest grade where the conflict occurs belongs to the last grade; and in the transmission units with the conflict, according to the channel types of the terminals with the conflict, the corresponding transmission units are allocated to the terminals with the conflict again in the preset position range of the transmission units with the conflict.
2. The method for multi-terminal physical resource allocation of a wireless access point according to claim 1, wherein the re-allocating the transmission unit at a predetermined location for the terminal where the collision occurs according to the channel type of the terminal for the collision of the transmission units of the same level, comprises:
for collisions between data channels, reassigning to other transmission units of the colliding terminal or discarding at a predetermined position; for control channel collision, the control channel collision is reassigned to other transmission units in the allocable transmission resource of the collision terminal or discarded; for data channel and control channel collisions, the data channel is preferentially allocated, and the control channel is reallocated to a collision terminal, so that other transmission units in the transmission resource can be allocated or discarded.
3. The method for allocating physical resources of multiple terminals of a wireless access point according to claim 1 or 2, wherein the transmission units corresponding to the terminals are classified into three classes: the first level transmission unit, the second level transmission unit and the third level transmission unit, wherein a plurality of third level transmission units form a second level transmission unit, and a plurality of second level transmission units form a first level transmission unit.
4. The method for multi-terminal physical resource allocation of a wireless access point according to claim 3, wherein the transmission capability of the terminal is classified into two classes: a first level transmission capability and a second level transmission capability; the configuration of the transmission unit types used by the channels of each type of terminal according to the transmission capability of the terminal includes:
for the terminal of the first level transmission capability, the first rule is used for configuring the used transmission unit types for the data channel and the control channel of the terminal respectively, and for the terminal of the second level transmission capability, the second rule is used for configuring the used transmission unit types for the data channel and the control channel of the terminal respectively.
5. The method for multi-terminal physical resource allocation of a wireless access point of claim 4,
the types of transmission units respectively used for the configuration of the data channel and the control channel of the terminal according to the first rule are as follows: configuring a data channel of the terminal to use a first-level transmission unit, and configuring a control channel to use a second-level transmission unit; the types of transmission units respectively used for the configuration of the data channel and the control channel of the terminal by the second rule are as follows: the data channel configuring the terminal uses a second level transmission unit and the control channel uses a third level transmission unit.
6. The method for allocating physical resources of multiple terminals of a wireless access point according to claim 5, wherein said collision of transmission units of different levels, transmission units of a lower level, punch resources of transmission units of a higher level where the collision occurs, comprises the following scenarios:
A. the first level transmission unit collides with the second level transmission unit: punching at least one second-level transmission unit in the first-level transmission units to transmit the second-level transmission units of the terminals with collision;
B. the second level transmission unit collides with the third level transmission unit: punching at least one third-level transmission unit in the second-level transmission units to transmit the third-level transmission units of the terminals with collision;
C. the first level transmission unit collides with the third level transmission unit: punching at least one second-level transmission unit in the first-level transmission units, wherein each punched second-level transmission unit punches at least one third-level transmission unit to transmit the third-level transmission units of the terminals with conflicts;
D. the first and second and third level transmission units collide: punching at least one second-level transmission unit in the first-level transmission units to transmit the second-level transmission units of the terminals with collision; and punching at least one third-level transmission unit in the punched second-level transmission units to transmit the third-level transmission units of the terminal with collision.
7. The method for multi-terminal physical resource allocation of a wireless access point according to claim 6, wherein in scenario C, each punctured second level transmission unit punctures all third level transmission units to transmit the third level transmission units of the terminal that have collided.
8. The method for allocating multi-terminal physical resources of a wireless access point according to claim 5, wherein if there is a conflict in scheduling of transmission units by the wireless access point, the currently scheduled transmission unit is perforated step by step from the level to the direction of the low-level transmission unit until the level above the level to which the lowest-level transmission unit having the conflict belongs; in the transmission unit with conflict, according to the channel type of the terminal with conflict, the corresponding transmission unit is allocated again to the terminal with conflict at the preset position of the transmission unit with the conflict, which comprises the following scenes:
a. the first level transmission unit currently has a data channel for scheduling transmission of a certain terminal, and at least one other terminal has a data channel or a control channel based on the length of the second level transmission unit: punching at least one second-level transmission unit of the current first-level transmission unit, selecting a second-level transmission unit with a preset position from the current first-level transmission channel, distributing the second-level transmission unit to the other terminals, reserving data channel transmission if the distributed second-level transmission unit has a scheduling conflict between a data channel and a control channel based on the length of the second-level transmission unit, and re-distributing other distributed second transmission units for the conflicted control channel in the current first-level transmission unit for transmission;
b. the current second level transmission unit has a data channel or a control channel for scheduling transmission of a certain terminal, and at least one other terminal also has a control channel based on the third level transmission unit: punching at least one third-level transmission unit of the current second-level transmission unit, and selecting the third-level transmission unit from the current second-level transmission unit to be distributed to the other terminals;
c. the current first level transmission unit has a data channel for scheduling transmission of a certain terminal, and at least one other terminal has a control channel based on the length of the third level transmission unit: punching at least one third-level transmission unit in at least one second-level transmission unit in the current first-level transmission units, and selecting a third-level transmission unit with a preset position from the punched second-level transmission units to be distributed to the other terminals;
d. the first level transmission unit currently has a data channel for scheduling transmission of a certain terminal, and at least one other terminal also has a data channel and a control channel based on the length of the second level transmission unit, and the second level transmission unit which generates collision has a control channel transmission based on the length of the third level transmission unit: punching at least one second-level transmission unit in the current first-level transmission units so as to be used for channel transmission of other terminals under the second-level transmission units, punching at least one third-level transmission unit in the punched position of the second-level transmission unit, and selecting the third-level transmission unit with a preset position from the punched second-level transmission unit to be allocated to a control channel with collision.
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| CN202110865671.4A CN113596817B (en) | 2021-07-29 | 2021-07-29 | Multi-terminal physical resource allocation method of wireless access point |
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| US11863315B2 (en) * | 2017-12-04 | 2024-01-02 | Qualcomm Incorporated | Techniques and apparatuses for avoiding collisions on an uplink data channel and a cell-specific or UE-specific uplink control channel |
| US10841952B2 (en) * | 2018-01-25 | 2020-11-17 | Qualcomm Incorporated | Puncturing PT-RS based on a collision between PT-RS and coreset |
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| CN110249693A (en) * | 2017-02-06 | 2019-09-17 | 瑞典爱立信有限公司 | The uplink of mini-slot in slot transmission is punched |
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