CN113596817A - Multi-terminal physical resource allocation method for wireless access point - Google Patents
Multi-terminal physical resource allocation method for wireless access point Download PDFInfo
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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.A transmission unit corresponding to a terminal has a plurality of grades, when the resource is allocated, if the resource conflicts, the transmission unit at the lower grade can punch the resource at the transmission unit at the higher grade to solve the conflict, and the conflict at the same grade can reallocate the transmission resource for conflict transmission. The invention controls the channel punching to reallocate the transmission resource, so that the physical resource allocation of the control channel is more flexible, which is important for reducing the collision rate in the system. The method allocates resources according to the current terminal capability and the transmission type, adapts to the capability of different channel conditions, and performs punching physical resources aiming at conflicts, thereby greatly improving the terminal capacity of the wireless access point.
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 makes the internet of things attract attention as the next strong growth point of the information industry, and the internet of things is characterized by wide area coverage, low power consumption, large connection and low cost. Aiming at the characteristics of large connection, the existing 4G and 5G-based technologies rely on large bandwidth and high complexity, so that the large connection is difficult to be considered. In the frame structure of wireless transmission, the physical resource scheme is mainly distributed by taking a time domain subframe and a time slot as a unit, in the same subframe, only data of one terminal is scheduled and transmitted, whether the scheduled data is transmitted is determined by detecting a control channel, and the transmission position is a plurality of symbols at the head of the subframe, so that the physical resource distribution mode is not flexible.
Disclosure of Invention
The invention aims to: in view of the above problems, a method for allocating physical resources of multiple terminals in a wireless access point is provided, which enables data channels and control channels of different terminals to be transmitted in the same transmission unit, thereby improving the utilization rate of wireless resources and the capacity of communication terminals in the system.
The technical scheme adopted by the invention is as follows:
a multi-terminal physical resource allocation method of a wireless access point, a transmission unit corresponding to a terminal is divided into a plurality of grades, a plurality of transmission units with one grade lower form a transmission unit with one grade higher, and the transmission unit is used as a physical resource for the terminal to transmit data; respectively configuring transmission unit types used by various types of channels of the terminal according to the transmission capability of the terminal;
and the wireless access point distributes transmission units for different terminals according to upper layer scheduling, and determines whether the current transmission unit is punched or not according to the channel type and the code rate. If the current transmission unit allocates a data channel, and adopts a modulation coding strategy under a better channel condition, and the code rate is higher, the current transmission unit cannot puncture, and for a terminal which performs puncturing transmission under the current transmission unit, resources under other peer transmission units need to be reselected or discarded. If the allocated transmission units do not conflict, the terminal completely occupies the allocated transmission units; if there is a collision of allocated transmission units: for the conflict of the transmission units with different grades, the transmission unit with the lower grade punches resources in the transmission unit with the higher grade where the conflict occurs; for the conflict of the transmission units in the same level, reallocating the transmission units for the terminal which has the conflict at the preset position according to the channel type of the terminal;
if the wireless access point schedules the transmission units, the transmission units scheduled at present are punched step by step from the grades to which the transmission units belong to the lower grades until the transmission units with the lowest grades are in the previous grade of the grade to which the transmission units with the lowest grades are in conflict; and at the transmission unit with the conflict, according to the channel type of the terminal with the conflict, re-allocating the corresponding transmission unit for the terminal with the conflict within the preset position range of the punched transmission unit.
Further, the above-mentioned collision of peer transmission units, according to the channel type of the terminal, reallocating transmission units at predetermined positions for the terminal where the collision occurs, includes: for the conflict between the data channels, other transmission units of the conflict terminal are allocated to the preset position again or discarded; for the conflict between the control channels, other transmission units in the transmission resources can be allocated or discarded by the conflict terminal; for data channel and control channel collisions, the data channel is preferentially allocated, and the control channel is reallocated to the colliding terminal to allocate other transmission units within the transmission resource or to discard.
Further, the transmission units corresponding to the terminals are classified into three classes: the transmission device comprises a first-level transmission unit, a second-level transmission unit and third-level transmission units, wherein the third-level transmission units form the second-level transmission unit, and the second-level transmission units form the first-level transmission unit.
Further, the transmission capability of the terminal is divided into two levels: a first level of transmission capability and a second level of transmission capability; the configuring the types of transmission units used by the channels of each type of the terminal respectively according to the transmission capability of the terminal includes: for a terminal with a first level transmission capacity, the types of the transmission units used are respectively configured for the data channel and the control channel of the terminal according to a first rule, and for a terminal with a second level transmission capacity, the types of the transmission units used are respectively configured for the data channel and the control channel of the terminal according to a second rule.
Further, the types of transmission units configured and used by the first rule for the data channel and the control channel of the terminal respectively are as follows: configuring a data channel of a 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 configured and used for the data channel and the control channel of the terminal by the second rule are as follows: the data channel of the terminal is configured to use a second level transmission unit, and the control channel uses a third level transmission unit.
Further, for the collision of the transmission units of different grades, the transmission unit of the lower grade punches resources in the transmission unit of the higher grade where the collision occurs, which includes the following scenarios:
A. the first level transmission unit and the second level transmission unit collide: puncturing at least one second-level transmission unit in the first-level transmission unit to transmit the second-level transmission unit of the terminal with the conflict;
B. the second level transmission unit and the third level transmission unit collide: 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 the conflicts;
C. the first level transmission unit and the third level transmission unit collide: puncturing at least one second-level transmission unit in the first-level transmission units, and puncturing at least one third-level transmission unit by each punctured second-level transmission unit to transmit the third-level transmission units of the terminals with collision;
D. the first level transmission unit and the second level transmission unit and the third level transmission unit collide: puncturing at least one second-level transmission unit in the first-level transmission unit to transmit the second-level transmission unit of the terminal with the conflict; and puncturing at least one third-level transmission unit in the punctured second-level transmission units to transmit the third-level transmission units of the terminals with the collisions.
Further, in scenario C, each punctured second level transmission unit punctures all third level transmission units to transmit the third level transmission units of the colliding terminals.
Further, if there is a conflict in scheduling of the transmission unit by the wireless access point, the currently scheduled transmission unit is punched from the subordinate level to the lower level transmission unit until the transmission unit with the lowest level where the conflict occurs is in the previous level of the subordinate level; in a transmission unit where a collision occurs, according to the channel type of the terminal where the collision occurs, allocating a corresponding transmission unit to the terminal where the collision occurs again at a predetermined position of the punctured transmission unit, including the following scenarios:
a. the current first-level transmission unit has a data channel for scheduling and transmitting 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 at a preset position in the current first-level transmission channel to be allocated to other terminals, if the allocated second-level transmission unit has scheduling conflict of a data channel and a control channel based on the length of the second-level transmission unit, reserving the data channel for transmission, and reallocating other allocable second transmission units for the control channel with conflict to perform transmission in the current first-level transmission unit;
b. the current second-level transmission unit has a data channel or a control channel for scheduling and transmitting a certain terminal, and at least one other terminal 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 in the current second-level transmission unit to distribute to other terminals;
c. the current first-level transmission unit has a data channel for scheduling and transmitting a certain terminal, and at least one control channel of other terminals based on the length of the third-level transmission unit: puncturing at least one third-level transmission unit in at least one second-level transmission unit in the current first-level transmission unit, and selecting a third-level transmission unit at a preset position from the punctured second-level transmission units to allocate to the other terminals;
d. the current first-level transmission unit has a data channel for scheduling and transmitting a certain terminal, at the same time, at least one other terminal 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 conflicts has control channel transmission based on the length of the third-level transmission unit: and puncturing at least one second-level transmission unit in the current first-level transmission units for channel transmission of the other terminals under the second-level transmission units, puncturing at least one third-level transmission unit at the positions of the punctured second-level transmission units, and selecting the third-level transmission unit at a preset position from the punctured second-level transmission units to be allocated to the control channel with the conflict.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. the invention can punch and reallocate transmission resources aiming at the transmission unit with conflict control channel, so that the physical resource allocation of the control channel is more flexible, the conflict rate of the system can be effectively reduced, the control channel and the data channel can be transmitted in the same transmission unit, and the utilization rate of wireless resources is improved.
2. The method of the invention can allocate transmission resources for the current terminal according to the transmission capability and the channel type of the terminal, adapt to the capability of different channel conditions and increase the terminal capacity in the system to the maximum extent. And the physical resources are obtained by punching aiming at the conflict, so that the redundancy of the system data can be reduced.
Drawings
The invention will now be described, by way of example, with reference to the accompanying drawings, in which:
fig. 1 is an example of puncturing by a first level transmission unit to allocate a second level transmission unit in the case of different level collisions.
Fig. 2 is an example of puncturing by a second level transmission unit to allocate a third level transmission unit in case of different level collisions.
Fig. 3 is an example of puncturing assignment of first rank transmission units to third rank transmission units in case of different rank collisions.
Fig. 4 is a nesting example of puncturing a second level transmission unit by a first level transmission unit and puncturing and allocating a third level transmission unit by a second level transmission unit in case of different level collisions.
Fig. 5 is an example of nesting and resource reallocation of a first-level transmission unit puncturing a second-level transmission unit and a second-level transmission unit puncturing and allocating a third-level transmission unit in a peer collision.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Any feature disclosed in this specification (including any accompanying claims, abstract) may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
Description of the parameters:
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 bursts each group contains;
p: the slot number contained in each burst;
IOTE: internet of things, Internet of things Equipment;
ID: identity, Identity;
CCH, Control CHannel;
DCH, Data CHannel.
The invention divides the wireless transmission resource according to frame-subframe-symbol, the embodiment of the invention takes the classification of transmission units into three levels as an example, and the rest levels are analogized in the same way. The method comprises the steps that a transmission unit corresponding to a terminal is a group-burst-slot, a plurality of slots form a burst, a plurality of burst transmissions 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 various types of the terminal according to the transmission capability of the terminal. Specifically, for each terminal with transmission capability, each type of channel (including a data channel and a control channel) uses a corresponding type of transmission unit according to a corresponding rule configuration, but the data channel cannot be punctured if the code rate of the data channel is high. The embodiment of the invention takes the transmission capability of the terminal as an example, and the other levels are analogized in the same way. The terminal transmission capacity is divided into two levels, boost1 (corresponding to a first level of transmission capacity) and boost0 (corresponding to a second level of transmission capacity). The data channel of the terminal of the boost1 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 upper layer scheduling, specifically, allocates corresponding transmission units as physical resources for transmitting data at predetermined positions according to the transmission capability and channel type of the current terminal. If there is no collision of allocated transmission units, (the data channel or the control channel of) the terminal fully occupies the allocated transmission units. If there is a collision of allocated transmission units: for the collision of the transmission units of different grades, the transmission unit of the lower grade punches resources in the transmission unit of the higher grade where the collision occurs, namely, the transmission unit of the lower grade punches resources layer by layer to the transmission unit of the higher grade no matter whether the collision transmission unit grades are adjacent or not. For the conflict of the transmission units in the same level, according to the channel type of the terminal, the transmission units are redistributed to the terminal which has the conflict in the preset position, comprising the following steps: for the conflict between the data channels, other resources are reallocated to the conflict terminal for transmission or discarding; for the conflict between the control channels, other physical resources in the transmission resources can be allocated or discarded by the conflict terminal; for data channel and control channel collisions, the data channel is preferentially allocated, and the control channel of the colliding terminal is reallocated to other physical resources within the transmission resources or discarded.
For the collision of transmission units of different grades, the following scenarios are listed for illustration in this embodiment:
group and burst conflicts: and one or more bursts are punched in the group to transmit the burst transmission unit of the conflict terminal. As shown in fig. 1, there are DCHs in the group with ID 0 for transmitting the iot 0, and there are two other ortes in this group to transmit their respective CCHs or DCHs, i.e. the collisions between the group and the burst among the collisions belonging to different classes of transmission units. Burst1 and N-3 may now be used for IOTE1 and IOTE2 transmissions, respectively.
Burst and slot collision: and one or more slots are punched in the burst to transmit slot transmission units of the collision terminals. As shown in FIG. 2, in the group with ID M-2, there is CCH or DCH for transmitting IOTE0 in burst 2, and there are CCH of other IOTEs to be transmitted in the slot in burst 2, which belongs to the conflict between burst and slot. Slot 0 may be used for iot 1 transmissions at this time.
Group and slot conflicts: one or more bursts in a group are punched, and each burst punches one or more slots to transmit slot transmission units of a collision terminal; in practical applications, all slots in the punctured burst may be punctured to allocate to the colliding terminal transmissions. As shown in fig. 3, there is a DCH in the group with ID 1 to transmit iot 0, and there are two other CCHs of iot to transmit in the slot under burst N-3, which belong to the conflict between group and slot. Slot 0 and P-2 may now be allocated to IOTE1 and IOTE2 transmissions, respectively.
Group and burst and slot collisions: and one or more bursts are punched in the group to transmit the burst transmission unit of the conflict terminal, and one or more slots are further punched in the punched bursts to transmit the slot transmission unit of the conflict terminal. As shown in fig. 4, there is a DCH in the group with ID 1 for transmitting the iot 0, and there are other iot in the burst 0 and N-2 in this group to transmit their respective CCH or DCH, and there are 2 other iot CCHs in the burst 0 and N-2 in the current group to transmit, which belong to the group's collision with the burst and slot. At this time, burst 0 and N-2 are allocated to IOTE1 and IOTE2 for transmission, while slot 0 and P-3 in burst 0 are allocated to IOTE3 and IOTE4 for transmission, and slot 1 and P-1 in burst N-2 are allocated to IOTE5 and IOTE6 for transmission, respectively. Therefore, when physical transmission resources are allocated, flexible allocation is carried out according to the terminal capacity, and when conflicts exist, punching resources can be carried out to solve the conflicts and guarantee transmission, so that the overall network capacity is improved. In this embodiment, another scenario of group and burst and slot collision is considered, as shown in fig. 5, there is a DCH for transmitting iot 0 in a group with ID 0, and there is a CCH of DCH for transmitting iot 1 and iot 2 in burst1 of the current group to be transmitted, at this time, there is an allocation collision between iot 1 and iot 2 and iot 0, and burst1 is allocated to iot 1 or iot 2, but there is a collision between iot 1 and iot 2, because DCH with burst length is preferentially allocated and CCH with burst length in the current group can flexibly allocate resources, resources of burst1 are allocated to iot 1, and burst N-3 is additionally allocated to iot 2. Not only does this, there are slots 1 and P-3 in burst1 that have other IOTEs to transmit CCH, slots 1 and P-3 can be allocated to IOTE3 and IOTE4, slot 0 of burst N-3 has CCH of 2 other IOTEs to transmit, slot 0 is allocated to one of the IOTEs, other conflicting IOTEs are allocated to other slots in this burst, slot 0 can be allocated to IOTE5, and slot P-1 can be allocated to IOTE 6. Note that: at this time, if the channel condition of the iot 1 is good and the selected transmission code rate is high, so that the redundancy of the data channel is low, puncturing cannot be performed, and at this time, CCH resources of the iot 3 and the iot 4 are alternatively transmitted or discarded. There is also a need in this scenario for a scenario that takes into account the problem of preferential allocation of data channels and control channels. Therefore, when the CCH conflicts exist, the CCH can be flexibly allocated to other transmission resources in the allocable resource range, and the conflict rate can be further reduced.
If the wireless access point schedules the transmission units, the transmission units scheduled at present are punched step by step from the grades to which the transmission units belong to the lower grades until the transmission units with the lowest grades are in the previous grade of the grade to which the transmission units with the lowest grades are in conflict; for example, if two adjacent transmission units collide with each other, the higher transmission unit is punctured, and if the transmission units collide with each other across the levels, the transmission units in the respective levels where the collision occurs are punctured, starting from the highest transmission unit, and progressively starting from the highest transmission unit, at the lowest transmission unit of the highest transmission unit and the next highest transmission unit … …. And at the transmission unit with the conflict, according to the channel type of the terminal with the conflict, re-allocating the corresponding transmission unit to the terminal with the conflict at the preset position of the punched transmission unit. Similarly, the following scenarios are listed in this embodiment to explain the response measures to the scheduling conflict:
a. a conflict scenario one: a current group has a data channel for scheduling and transmitting a certain terminal, and simultaneously one or more other terminals punch one or more bursts of the current group based on the data channel or the control channel with the burst length, if the data channel and the control channel with the burst length have conflicts, the data channel transmission is reserved, and the control channel reallocates other burst transmissions in the group;
b. a conflict scenario two: a data channel or a control channel of a certain terminal is scheduled and transmitted in the current burst, one or more slots of the current burst are punched by one or more other terminals based on the control channel with the slot length, and the slots are selected from the burst and allocated to a collision control channel;
c. a third conflict scenario: a current group has a data channel for scheduling and transmitting a certain terminal, and simultaneously has one or more control channels of other terminals based on slot length, one or more slots of one or more bursts in the current group are punched, and slots are selected from the punched bursts to be allocated to the conflict control channels;
d. and a fourth conflict scenario: the method comprises the steps that a data channel for scheduling and transmitting a certain terminal is arranged in a current group, one or more other terminals are arranged at the same time, the data channel and the control channel are based on a burst length, the control channel with the slot length is transmitted under the burst, one or more collision bursts in the current group are punched to be used for burst transmission of collision terminals, one or more slots are punched at the positions of the punched bursts, and the slots are selected at preset positions to be allocated to the collision control channels.
It should be noted that, the reallocation of the physical resources mentioned in the present invention is usually to set the reallocation position in advance, for example, to select the first idle transmission unit from front to back, or to randomly select an idle transmission unit, or to set 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 foregoing embodiments. The invention is not limited to a certain scene of communication of the internet of things, and the inventive concept can also be applied to other mobile communication systems. The invention extends to any novel feature or any novel combination of features disclosed in this specification and any novel method or process steps or any novel combination of features disclosed.
Claims (8)
1. A multi-terminal physical resource allocation method of a wireless access point is characterized in that a transmission unit corresponding to a terminal is divided into a plurality of grades, a plurality of transmission units with one grade lower form a transmission unit with one grade higher, and the transmission unit is used as a physical resource for the terminal to transmit data; selecting the type of the used transmission unit according to the transmission capability and the channel type of the terminal;
the wireless access point distributes transmission units for different terminals according to upper layer scheduling, determines whether the current transmission unit is punched or not according to the channel type and the code rate, and if the distributed transmission units have no conflict, the terminals completely occupy the distributed transmission units; if there is a collision of allocated transmission units: for the conflict of the transmission units with different grades, the transmission unit with the lower grade punches resources in the transmission unit with the higher grade where the conflict occurs; for the conflict of the transmission units at the same level, reallocating the transmission units for the terminal with the conflict at a preset position or carrying out conflict rollback according to an upper layer rule and reissuing a resource allocation application according to the channel type of the terminal;
if the wireless access point schedules the transmission units, the transmission units scheduled at present are punched step by step from the grades to which the transmission units belong to the lower grades until the transmission units with the lowest grades are in the previous grade of the grade to which the transmission units with the lowest grades are in conflict; and at the transmission unit with the conflict, according to the channel type of the terminal with the conflict, re-allocating the corresponding transmission unit for the terminal with the conflict within the preset position range of the punched transmission unit.
2. The method of claim 1, wherein the reallocating transmission units at predetermined locations for the terminals with collision according to the channel types of the terminals for the collision of peer transmission units comprises:
for the conflict between the data channels, other transmission units of the conflict terminal are allocated to the preset position again or discarded; for the conflict between the control channels, other transmission units in the transmission resources can be allocated or discarded by the conflict terminal; for data channel and control channel collisions, the data channel is preferentially allocated, and the control channel is reallocated to the colliding terminal to allocate other transmission units within the transmission resource or to discard.
3. The method of claim 1 or 2, wherein the transmission units corresponding to the terminals are classified into three classes: the transmission device comprises a first-level transmission unit, a second-level transmission unit and third-level transmission units, wherein the third-level transmission units form the second-level transmission unit, and the second-level transmission units form the first-level transmission unit.
4. The multi-terminal physical resource allocation method of a wireless access point according to claim 3, wherein the transmission capability of the terminal is classified into two classes: a first level of transmission capability and a second level of transmission capability; the configuring the types of transmission units used by the channels of each type of the terminal respectively according to the transmission capability of the terminal includes:
for a terminal with a first level transmission capacity, the types of the transmission units used are respectively configured for the data channel and the control channel of the terminal according to a first rule, and for a terminal with a second level transmission capacity, the types of the transmission units used are respectively configured for the data channel and the control channel of the terminal according to a second rule.
5. The multi-terminal physical resource allocation method of a wireless access point according to claim 4,
the types of transmission units respectively configured and used for the data channel and the control channel of the terminal by the first rule are as follows: configuring a data channel of a 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 configured and used for the data channel and the control channel of the terminal by the second rule are as follows: the data channel of the terminal is configured to use a second level transmission unit, and the control channel uses a third level transmission unit.
6. The method of claim 5, wherein for the collision of different classes of transmission units, a lower class of transmission unit punctures resources in a higher class of transmission unit where the collision occurs, comprising the following scenarios:
A. the first level transmission unit and the second level transmission unit collide: puncturing at least one second-level transmission unit in the first-level transmission unit to transmit the second-level transmission unit of the terminal with the conflict;
B. the second level transmission unit and the third level transmission unit collide: 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 the conflicts;
C. the first level transmission unit and the third level transmission unit collide: puncturing at least one second-level transmission unit in the first-level transmission units, and puncturing at least one third-level transmission unit by each punctured second-level transmission unit to transmit the third-level transmission units of the terminals with collision;
D. the first level transmission unit and the second level transmission unit and the third level transmission unit collide: puncturing at least one second-level transmission unit in the first-level transmission unit to transmit the second-level transmission unit of the terminal with the conflict; and puncturing at least one third-level transmission unit in the punctured second-level transmission units to transmit the third-level transmission units of the terminals with the collisions.
7. The multi-terminal physical resource allocation method of a wireless access point of 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 colliding terminals.
8. The method according to claim 5, wherein if there is a conflict in scheduling transmission units by the radio access point, the currently scheduled transmission unit is punctured from the subordinate level to the lower level transmission unit until the transmission unit with the lowest level where the conflict occurs is at the level immediately before the subordinate level; in a transmission unit where a collision occurs, according to the channel type of the terminal where the collision occurs, allocating a corresponding transmission unit to the terminal where the collision occurs again at a predetermined position of the punctured transmission unit, including the following scenarios:
a. the current first-level transmission unit has a data channel for scheduling and transmitting 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 at a preset position in the current first-level transmission channel to be allocated to other terminals, if the allocated second-level transmission unit has scheduling conflict of a data channel and a control channel based on the length of the second-level transmission unit, reserving the data channel for transmission, and reallocating other allocable second transmission units for the control channel with conflict to perform transmission in the current first-level transmission unit;
b. the current second-level transmission unit has a data channel or a control channel for scheduling and transmitting a certain terminal, and at least one other terminal 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 in the current second-level transmission unit to distribute to other terminals;
c. the current first-level transmission unit has a data channel for scheduling and transmitting a certain terminal, and at least one control channel of other terminals based on the length of the third-level transmission unit: puncturing at least one third-level transmission unit in at least one second-level transmission unit in the current first-level transmission unit, and selecting a third-level transmission unit at a preset position from the punctured second-level transmission units to allocate to the other terminals;
d. the current first-level transmission unit has a data channel for scheduling and transmitting a certain terminal, at the same time, at least one other terminal 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 conflicts has control channel transmission based on the length of the third-level transmission unit: and puncturing at least one second-level transmission unit in the current first-level transmission units for channel transmission of the other terminals under the second-level transmission units, puncturing at least one third-level transmission unit at the positions of the punctured second-level transmission units, and selecting the third-level transmission unit at a preset position from the punctured second-level transmission units to be allocated to the control channel with the conflict.
Priority Applications (1)
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