CN112654097B - Resource sharing method, terminal and network equipment - Google Patents

Resource sharing method, terminal and network equipment Download PDF

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CN112654097B
CN112654097B CN201910968487.5A CN201910968487A CN112654097B CN 112654097 B CN112654097 B CN 112654097B CN 201910968487 A CN201910968487 A CN 201910968487A CN 112654097 B CN112654097 B CN 112654097B
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random access
terminal
cot
resource
share
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CN112654097A (en
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姜蕾
吴凯
贺子健
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/02—Selection of wireless resources by user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0866—Non-scheduled access, e.g. ALOHA using a dedicated channel for access
    • H04W74/0875—Non-scheduled access, e.g. ALOHA using a dedicated channel for access with assigned priorities based access

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  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention provides a resource sharing method, a terminal and network equipment, wherein the resource sharing method applied to the terminal comprises the following steps: selecting random access resources; wherein the random access resource is used for indicating whether the network equipment is allowed to share the channel occupation time COT of the terminal. In the embodiment of the invention, the terminal with random access can share own COT to the network equipment, thereby reducing the time delay of the network equipment for sending information and improving the random access efficiency.

Description

Resource sharing method, terminal and network equipment
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a resource sharing method, a terminal, and a network device.
Background
On the unlicensed band, when a terminal such as a User Equipment (UE) initially accesses, a type 4 (category 4) listen-before-talk (listen before talk, LBT) is used to listen to a channel, and then when the channel is detected to be empty, random access is performed. When the network device sends the corresponding response information, the network device also needs to intercept the channel by adopting the LBT type 4, and then sends the response information when the intercepted channel is empty. As such, the network device may not be able to send the response information in time, resulting in low random access efficiency.
Disclosure of Invention
The embodiment of the invention provides a resource sharing method, a terminal and network equipment, which are used for solving the problem of low efficiency of the existing random access process in an unlicensed frequency band.
In order to solve the technical problems, the embodiment of the invention is realized as follows:
in a first aspect, an embodiment of the present invention provides a resource sharing method, which is applied to a terminal, and includes:
selecting random access resources;
wherein the random access resource is used for indicating whether the network equipment is allowed to share the COT of the terminal.
In a second aspect, an embodiment of the present invention provides a resource sharing method, applied to a network device, including:
and determining whether to share COT of the terminal according to the random access resource used by the terminal.
In a third aspect, an embodiment of the present invention provides a terminal, including:
a selection module for selecting random access resources;
wherein the random access resource is used for indicating whether the network equipment is allowed to share the COT of the terminal.
In a fourth aspect, an embodiment of the present invention provides a network device, including:
and the determining module is used for determining whether to share the COT of the terminal according to the random access resource used by the terminal.
In a fifth aspect, an embodiment of the present invention provides a communications device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, where the computer program when executed by the processor implements the steps of the resource sharing method described above.
In a sixth aspect, an embodiment of the present invention provides a computer readable storage medium having a computer program stored thereon, where the computer program when executed by a processor performs the steps of the above-described resource sharing method.
In the embodiment of the invention, whether the network equipment is allowed to share the COT of the terminal is indicated by the selected random access resource, so that the terminal can implicitly indicate whether the COT is shared by using different resources, and the terminal which is subjected to random access can share the COT of the terminal to the network equipment, thereby reducing the time delay of the network equipment for sending information and improving the random access efficiency.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort to a person skilled in the art.
FIG. 1 is a flow chart of a method for sharing resources according to an embodiment of the present invention;
FIG. 2 is a flow chart of another resource sharing method according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a terminal according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a network device according to an embodiment of the present invention;
FIG. 5 is a second schematic diagram of a terminal according to an embodiment of the present invention;
fig. 6 is a second schematic diagram of a network device according to an embodiment of the present invention.
Detailed Description
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort to a person skilled in the art.
In order to facilitate understanding of the embodiments of the present invention, the following is first described.
Unlicensed bands (unlicensed bands) may be used as a complement to licensed bands (licensed bands) to help operators expand services. To keep pace with New Radio (NR) deployments and maximize as much as possible unlicensed access based on NR, unlicensed bands may operate in the 5GHz, 37GHz and 60GHz bands. The large bandwidth (80 MHz or 100 MHz) of the unlicensed band can reduce the implementation complexity of the base station and the UE. Since unlicensed bands are shared by multiple technologies (RATs), such as WiFi, radar, LTE-LAA, etc., in some countries or regions, unlicensed bands must be used in compliance with rules (regulations) to ensure that all devices can use the resources fairly, such as LBT (listen before talk), rules for maximum channel occupancy time (Maximum Channel Occupancy Time, MCOT), etc. When the transmission node needs to send information, LBT needs to be performed first, power detection (ED) is performed on surrounding nodes, and when the detected power is lower than a threshold, the channel is considered to be empty (idle), and the transmission node can send. Otherwise, the channel is considered as busy, and the transmission node cannot transmit. The transmission node may be a base station, a UE, a WiFi Access Point (AP), etc. After the transmission node starts transmission, the occupied channel time COT cannot exceed MCOT.
Among them, the type (category) of the LBT may be classified into category1, category 2, and category4.Category1LBT is that the transmitting node does not make LBT, i.e., no LBT or directly transmit (immediate transmission). And the Category 2LBT is one-shot LBT, namely the transmission node makes one LBT before transmission, and the transmission is carried out when the channel is empty, and the transmission is not carried out when the channel is busy. The Category 4LBT is a channel interception mechanism based on back-off, and when the transmission node detects that the channel is busy, the transmission node performs back-off, and continues interception until the channel is empty. Category 4LBT contains multiple priorities, with the maximum channel occupation time being different for each priority. As shown in tables 1 and 2 below.
TABLE 1 channel Access priority (Channel Access Priority Class)
Figure BDA0002231290180000031
Table 2 uplink channel access priority
Figure BDA0002231290180000041
Wherein T in Table 1 above mcot,p Indicating the maximum channel occupation time of the downlink transmission of the corresponding priority p. T in Table 2 above ulmcot,p Representing the maximum channel occupation time of the uplink transmission of the corresponding priority p. m is m p Representing the coefficient corresponding to the respective priority p. CW (continuous wave) p Representing the value of the contention window corresponding to the respective priority p. CW (continuous wave) min,p Representing the minimum value of the contention window corresponding to the respective priority p. CW (continuous wave) max,p Representing the maximum of the contention window corresponding to the respective priority pValues.
Various different types of physical random access channel (physical random access channel, PRACH) preamble formats (PRACH preamble format) are defined in the NR, the different formats corresponding to different preamble sequence lengths, interval CP lengths, time domain lengths, etc., adapted to different coverage ranges. Wherein the total duration of PRACH in the various formats is different. For each PRACH preamble format, the protocols may agree on the priority of their corresponding channel access. For each cell, the network may configure one PRACH preamble format,64 preamble sequences, 64 preambles corresponding to different cyclic shift values, and the same or different root sequence number values.
The wireless communication system of the embodiment of the invention comprises a terminal and network equipment. The terminal may also be referred to as a terminal Device or a User Equipment (UE), and the terminal may be a terminal-side Device such as a mobile phone, a tablet (Tablet Personal Computer), a Laptop (Laptop Computer), a personal digital assistant (Personal Digital Assistant, PDA), a mobile internet Device (Mobile Internet Device, MID), a Wearable Device (weardable Device), or a vehicle-mounted Device, which is not limited to a specific type of the terminal in the embodiment of the present invention. The network device may be a base station or a core network, where the base station may be a 5G or later version base station (e.g., a gNB, 5G NR NB, etc.), or a base station in other communication systems (e.g., an eNB, WLAN access point, or other access point, etc.), which may be referred to as a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a node B, an evolved node B (eNB), a home node B, a home evolved node B, a WLAN access point, a WiFi node, or some other suitable terminology in the field, provided that the same technical effect is achieved, not limited to a particular technical vocabulary.
Referring to fig. 1, fig. 1 is a flowchart of a resource sharing method provided in an embodiment of the present invention, where the method is applied to a terminal, as shown in fig. 1, and the method includes the following steps:
step 101: random access resources are selected.
In this embodiment, the random access resource is used to indicate whether the network device is allowed to share the channel occupation time (Channel Occupancy Time, COT) of the terminal. Specifically, the random access resource is used to implicitly indicate whether or not the network device is allowed to share the COT of the terminal.
Optionally, the process of selecting the random access resource by the terminal may be: firstly, determining whether to allow network equipment to share COT of the network equipment or not to obtain a determination result; wherein, the determination result may be that the network device is allowed to share its own COT or the network device is not allowed to share its own COT; then, a random access resource corresponding to the determination result is selected, which implicitly indicates whether or not the network device is allowed to share the COT of the terminal. After selecting the random access resource, the terminal may perform random access according to the random access resource.
Optionally, the random access resource may include any one of the following: a random access preamble (preamble), a random access occasion (RACH occision, RO), and the like.
According to the resource sharing method provided by the embodiment of the invention, whether the network equipment is allowed to share the COT of the terminal is indicated through the selected random access resource, so that the terminal can implicitly indicate whether COT sharing is carried out by using different resources, and the terminal which carries out random access can share the COT of the terminal to the network equipment, thereby reducing the time delay of information transmission of the network equipment and improving the random access efficiency.
In the embodiment of the invention, in order to enable the selected random access resource to indicate (implicitly) whether the network equipment is allowed to share the COT of the terminal, the random access resource can be grouped, and whether COT sharing is performed or not is indicated by selecting different groups of resources.
Alternatively, when the random access resources are grouped, the random access resources may be divided into two resource groups, namely a first resource group and a second resource group, which respectively represent the COTs of allowing the network devices to share the terminal and the COTs of not allowing the network devices to share the terminal. In this way, the random access resource, in case it belongs to the first resource group, may indicate a COT allowing the network device to share the terminal; alternatively, the random access resource may indicate that the network device is not allowed to share the COT of the terminal in case it belongs to the second resource group.
It will be appreciated that the above-mentioned "first" and "second" of the first and second resource groups are used to distinguish resource groups, and have no specific meaning, and that the first resource group may also represent the COTs that do not allow the network devices to share the terminal, while the second resource group represents the COTs that allow the network devices to share the terminal, where appropriate.
In one embodiment, taking a random access resource as a preamble as an example, the preamble may be divided into two groups, namely, a preamble group 1 and a preamble group 2, where the preamble group 1 indicates that the UE allows the gNB to share its own COT, and the preamble group 2 indicates that the UE does not allow the gNB to share its own COT. The UE implicitly indicates whether the gNB is allowed to share the COT of the UE by selecting the preamble in the different group. Thus, when the gNB detects that the UE uses the preamble in preamble group 2, the gNB does not share the COT of the UE. And when the gNB detects that the UE uses the preamble in the preamble group 1, the gNB can share the COT of the UE according to the convention and send downlink data.
In another embodiment, taking a random access resource as an example of RO, the RO may be divided into two groups, namely RO group 1 and RO group 2, where RO group 1 indicates that the gNB is allowed to share its own COTs by the UE, and RO group 2 indicates that the gNB is not allowed to share its own COTs by the UE. The UE implicitly indicates whether the gNB is allowed to share the COT of the UE by selecting ROs in different groups. Thus, when the gNB detects that the UE uses the RO in RO group 2, the gNB does not share the COT of the UE. And when the gNB detects that the UE uses the RO in the RO group 1, the gNB can share COT of the UE according to the convention and send downlink data.
Alternatively, in the case that the random access resource includes a random access preamble (preamble), the different resource groups may be distinguished by any one of the following:
different random access preamble (preamble) indexes;
different cyclic shift values;
different root sequence numbers.
Optionally, the grouping manner of the resource groups may be determined according to any one of the following:
1) Predefined rules
This 1), the grouping mode can be implicitly determined.
For example, taking a preamble as an example, it may be predefined that an odd-numbered preamble corresponds to one resource group, indicating that the COT is allowed to be shared, and an even-numbered preamble corresponds to another resource group, indicating that the COT is not allowed to be shared; alternatively, it may be predefined that the first X (X is an integer greater than 0) preambles correspond to one resource group, indicating that COT is allowed to be shared, while the last 64-X preambles correspond to another resource group, indicating that COT is not allowed to be shared.
For another example, taking RO as an example, it may be predefined that an odd-numbered RO corresponds to one resource group, indicating that sharing of COT is allowed, while an even-numbered RO corresponds to another resource group, indicating that sharing of COT is not allowed. In this way, if the gNB detects the PRACH on the odd-numbered RO, it is considered that the COT of the UE can be shared; alternatively, if the gNB detects PRACH on an even numbered RO, it is considered that the COT of the UE cannot be shared.
2) Indication of network devices
This 2), the grouping mode can be determined explicitly.
For example, taking a preamble as an example, the network device may respectively indicate whether the preamble set corresponding to the COT can be shared.
For another example, taking RO as an example, the gNB may explicitly configure which PRACH preamble implicit indicators sent on RO may share the COT of the UE, and which PRACH preamble implicit indicators sent on RO may not share the COT of the UE.
In the embodiment of the present invention, when the terminal shares the remaining COT to the network device, the terminal cannot explicitly send the COT related information to the network device, such as the priority (priority class) of LBT performed by the terminal, the remaining time of COT (remaining COT) of the terminal, the end time of COT of the terminal, and the like, so the above COT related information may be implicitly indicated by the configured PRACH (Physical Random Access Channel ) preamble format (PRACH preamble format). Specifically, it may be agreed that each PRACH preamble format corresponds to a priority (priority class value) of channel access, which is the highest priority that a terminal configured with the PRACH preamble format is allowed to use. That is, for each PRACH preamble format, the protocol agrees with the highest priority of its corresponding channel access. The priority of the channel access selected by the terminal during random access cannot be higher than the highest priority of the channel access corresponding to the configured PRACH preamble format, so that the network equipment obtains COT related information.
Optionally, when the terminal in the embodiment of the present invention accesses randomly, according to the configured PRACH preamble format, the terminal may adopt the priority of the corresponding channel access to intercept the channel, and when the intercepted channel is empty, the terminal performs random access.
For example, for PRACH preamble format1 or PRACH preamble format2, the highest priority of channel access that the UE is allowed to use is priority class 2; while for the other PRACH preamble format, the highest priority for which the UE is permitted to use for channel access is priority class 1. Therefore, when the UE is randomly accessed, if PRACH preamble format1 or PRACH preamble format2 is configured, the priority that can be adopted is priority class2, 3 or 4; alternatively, if other PRACH preamble format is configured, the priority class1, 2, 3, or 4 may be employed.
Referring to fig. 2, fig. 2 is a flowchart of a resource sharing method according to an embodiment of the present invention, where the method is applied to a network device, as shown in fig. 2, and the method includes the following steps:
step 201: and determining whether to share COT of the terminal according to the random access resource used by the terminal.
In this embodiment, the random access resource is used to indicate (implicitly) whether to allow the network device to share the COT of the terminal, and is a resource selected for use by the terminal when performing random access. When the network device detects a resource used by the terminal in random access (such as initial access), it can decide whether to share the COT of the terminal based on the content implicitly indicated by the resource.
Optionally, the random access resource may include any one of the following: a random access preamble (preamble), a random access opportunity (RO), etc.
According to the resource sharing method provided by the embodiment of the invention, the network equipment can determine whether to share the COT of the terminal according to the resources used when the terminal performs random access, so that the network equipment can send information based on the shared terminal COT, the time delay of the network equipment for sending the information is reduced, and the random access efficiency is improved.
In the embodiment of the invention, in order to enable the random access resource selected by the terminal to implicitly indicate whether the network equipment is allowed or not to share the COT of the terminal, the random access resource can be grouped, and whether COT sharing is performed or not is indicated by different groups of resources.
Alternatively, when the random access resources are grouped, the random access resources may be divided into two resource groups, namely a first resource group and a second resource group, which respectively represent the COTs of allowing the network devices to share the terminal and the COTs of not allowing the network devices to share the terminal. The step 201 may include:
determining COT sharing the terminal under the condition that the random access resource belongs to a first resource group;
or in case that the random access resource belongs to the second resource group, determining not to share the COT of the terminal.
Optionally, in the case of determining the COT of the shared terminal, the duration of the COT of the terminal shared by the network device may be a fixed duration, for example, the fixed duration may be agreed by a protocol; or, determining by a maximum channel occupation time (Maximum Channel Occupancy Time, MCOT) of the terminal, wherein a sum of a duration of a COT of the terminal shared by the network device and a PRACH transmission duration of the terminal is less than or equal to (i.e., not more than) the duration of the MCOT; for example, the MCOT may be agreed upon by a protocol.
For example, in future enhanced licensed assisted access (Further enhanced Licensed Assisted Access, feLAA) autonomous uplink (Autonomous Uplink, AUL), the duration of the COT of a UE that an eNB can share is no more than 2 symbols. In NR-U, the fixed duration of COT for the gNB shared UE may be agreed by the protocol.
Alternatively, in the case of being decided by the terminal MCOT, the duration of the COT of the terminal shared by the network device may be decided by the MCOT obtained according to the highest priority of channel access corresponding to the PRACH preamble format of the terminal, for example, may be decided by the minimum MCOT (minimum MCOT) obtained according to the highest priority, that is, the sum of the transmission duration of the terminal and the duration that the network device can share does not exceed the duration of the minimum MCOT.
The highest priority of channel access corresponding to the PRACH preamble format may be agreed by a protocol. That is, in the embodiment of the present invention, for each PRACH preamble format, the protocol may agree on the highest priority of its corresponding channel access.
In one embodiment, it is assumed that the gNB configures PRACH preamble format1 for the UE, and the protocol agrees that the highest priority of the channel access corresponding to PRACH preamble format is priority class2, and the channel access priority table based on the existing uplink UL is as shown in the above table 2, where the MCOT corresponding to the priority class2 is 4ms, i.e. the minimum MCOT is 4ms. At this time, even if the UE selects the priority class 3 for channel access, the MCOT corresponding to the priority class 3 is 6ms, and the sum of the duration of UE transmission and the duration of COT of the UE that the gNB can share is also limited to 4ms. That is, the duration of the COT of the gNB shared UE is determined from 4ms, which is equal to 4ms minus the duration of the corresponding PRACH. In this way, it can be ensured that the sum of the UE's transmission time and the gNB's transmission time (shared by the UEs) never exceeds the UE's MCOT.
In the embodiment of the invention, when the network equipment shares the COT of the terminal, uplink and downlink conversion occurs in the COT of the terminal, namely, the network equipment converts the initial uplink transmission into the downlink transmission. To meet the requirements of the uplink/downlink transition in the COT, the interval (gap) between the downlink transmission end time and the uplink transmission start time may be agreed by the protocol. For example, the gap may be selected to be less than 16us, equal to 16us, or approximately equal to 25us.
Optionally, in the case of determining the COT of the shared terminal, the LBT type adopted by the network device in the shared COT may be any one of the following: type 1, type 2.
Among them, type 1 (category 1) is direct transfer (immediate transmission), i.e. no LBT. The type 2 (category 2) is a one-time LBT (one-shot LBT), and may be selected as a type 2 of a preset duration, such as 16us LBT or 25us LBT.
Optionally, the LBT type employed by the network device in the shared COT may be determined according to any one of the following:
protocol conventions;
implicit indication of COT;
the PRACH preamble format is implicitly indicated.
For example, suppose the UE configures PRACH preamble format1, the PRACH preamble format implicitly indicates that the type of LBT employed by the network device is type 1. Alternatively, assuming that the UE is configured with PRACH preamble format2, this PRACH preamble format implicitly indicates that the network device employs an LBT of type 16 us.
The above embodiments illustrate the resource sharing method of the present invention, and the terminal and the network device of the present invention will be described with reference to the embodiments and the accompanying drawings.
Referring to fig. 3, fig. 3 is a schematic structural diagram of a terminal according to an embodiment of the present invention, as shown in fig. 3, the terminal 30 includes:
a selection module 31, configured to select a random access resource;
wherein the random access resource is used for indicating whether the network equipment is allowed to share the COT of the terminal.
Optionally, the random access resource indicates that the network device is allowed to share the COT of the terminal in the case of belonging to the first resource group;
or, the random access resource indicates that the network device is not allowed to share the COT of the terminal in the case of belonging to the second resource group.
Optionally, the random access resource includes any one of the following:
a random access preamble;
random access opportunities.
Optionally, in the case that the random access resource includes a random access preamble, the different resource groups are distinguished by any one of:
different random access preamble indexes;
different cyclic shift values;
different root sequence numbers.
Optionally, the terminal 30 may further include:
the processing module is used for intercepting the channel by adopting the corresponding priority of channel access according to the PRACH preamble format; when the channel is detected to be empty, random access is performed.
The terminal 30 according to the embodiment of the present invention may implement each process implemented in the embodiment of the method shown in fig. 1 and achieve the same beneficial effects, and in order to avoid repetition, a detailed description is omitted here.
Referring to fig. 4, fig. 4 is a schematic structural diagram of a network device according to an embodiment of the present invention, and as shown in fig. 4, the network device 40 includes:
a determining module 41, configured to determine whether to share the COT of the terminal according to the random access resource used by the terminal.
Optionally, the determining module 41 is specifically configured to:
determining COT sharing the terminal under the condition that the random access resource belongs to a first resource group;
or in case that the random access resource belongs to the second resource group, determining not to share the COT of the terminal.
Optionally, the random access resource includes any one of the following:
a random access preamble;
random access opportunities.
Optionally, under the condition that the COT of the terminal is determined to be shared, the COT duration of the terminal shared by the network equipment is a fixed duration; or, the sum of the duration of the COT of the terminal shared by the network device and the duration of the PRACH transmission of the terminal is less than or equal to (i.e. not more than) the duration of the MCOT.
Optionally, in the case of being determined by the MCOT of the terminal, the duration of the COT of the terminal shared by the network device is determined by the MCOT obtained according to the highest priority of channel access corresponding to the PRACH preamble format of the terminal.
Optionally, the highest priority of the channel access corresponding to the PRACH preamble format is agreed by a protocol.
Optionally, in the case of determining the COT of the terminal to be shared, the listen before talk LBT type adopted by the network device in the shared COT is any one of the following:
type 1, type 2;
wherein, the type 1 is direct transmission, and the type 2 is 16us LBT or 25us LBT.
Optionally, the LBT type is determined according to any one of the following:
protocol conventions;
implicit indication of COT;
the PRACH preamble format is implicitly indicated.
The network device 40 according to the embodiment of the present invention may implement each process implemented in the method embodiment shown in fig. 2 and achieve the same beneficial effects, and in order to avoid repetition, a detailed description is omitted here.
The embodiment of the invention also provides a communication device, which comprises a processor and a memory, and a computer program stored in the memory and capable of running on the processor, wherein the computer program can realize each process of the method embodiment shown in fig. 1 or fig. 2 and achieve the same technical effect when being executed by the processor, and the repetition is avoided. Alternatively, the communication device may be a terminal or a network device.
Referring to fig. 5, fig. 5 is a schematic hardware structure of a terminal implementing various embodiments of the present invention, and a terminal 500 includes, but is not limited to: radio frequency unit 501, network module 502, audio output unit 503, input unit 504, sensor 505, display unit 506, user input unit 507, interface unit 508, memory 509, processor 510, and power source 511. It will be appreciated by those skilled in the art that the terminal structure shown in fig. 5 is not limiting of the terminal and that the terminal may include more or fewer components than shown, or may combine certain components, or a different arrangement of components. In the embodiment of the invention, the terminal comprises, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer and the like.
Wherein the processor 510 is configured to select a random access resource; the random access resource is used to indicate whether or not the network device is allowed to share the COT of the terminal 500.
The terminal 500 according to the embodiment of the present invention may implement each process implemented in the embodiment of the method shown in fig. 1 and achieve the same beneficial effects, and in order to avoid repetition, a detailed description is omitted here.
It should be understood that, in the embodiment of the present invention, the radio frequency unit 501 may be used to receive and send information or signals during a call, specifically, receive downlink data from a base station, and then process the downlink data with the processor 510; and, the uplink data is transmitted to the base station. Typically, the radio frequency unit 501 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 501 may also communicate with networks and other devices through a wireless communication system.
The terminal provides wireless broadband internet access to the user through the network module 502, such as helping the user to send and receive e-mail, browse web pages, access streaming media, etc.
The audio output unit 503 may convert audio data received by the radio frequency unit 501 or the network module 502 or stored in the memory 509 into an audio signal and output as sound. Also, the audio output unit 503 may also provide audio output (e.g., a call signal reception sound, a message reception sound, etc.) related to a specific function performed by the terminal 500. The audio output unit 503 includes a speaker, a buzzer, a receiver, and the like.
The input unit 504 is used for receiving an audio or video signal. The input unit 504 may include a graphics processor (Graphics Processing Unit, GPU) 5041 and a microphone 5042, the graphics processor 5041 processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 506. The image frames processed by the graphics processor 5041 may be stored in the memory 509 (or other storage medium) or transmitted via the radio frequency unit 501 or the network module 502. Microphone 5042 may receive sound and may be capable of processing such sound into audio data. The processed audio data may be converted into a format output that can be transmitted to the mobile communication base station via the radio frequency unit 501 in case of a phone call mode.
The terminal 500 further comprises at least one sensor 505, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor and a proximity sensor, wherein the ambient light sensor can adjust the brightness of the display panel 5061 according to the brightness of ambient light, and the proximity sensor can turn off the display panel 5061 and/or backlight when the terminal 500 moves to the ear. As one of the motion sensors, the accelerometer sensor can detect the acceleration in all directions (generally three axes), and can detect the gravity and direction when the accelerometer sensor is stationary, and can be used for recognizing the terminal gesture (such as horizontal and vertical screen switching, related games, magnetometer gesture calibration), vibration recognition related functions (such as pedometer and knocking), and the like; the sensor 505 may further include a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, an infrared sensor, etc., which are not described herein.
The display unit 506 is used to display information input by a user or information provided to the user. The display unit 506 may include a display panel 5061, and the display panel 5061 may be configured in the form of a liquid crystal display (Liquid Crystal Display, LCD), an Organic Light-Emitting Diode (OLED), or the like.
The user input unit 507 may be used to receive input numeric or character information and to generate key signal inputs related to user settings and function control of the terminal. Specifically, the user input unit 507 includes a touch panel 5071 and other input devices 5072. Touch panel 5071, also referred to as a touch screen, may collect touch operations thereon or thereabout by a user (e.g., operations of the user on touch panel 5071 or thereabout using any suitable object or accessory such as a finger, stylus, etc.). Touch panel 5071 may include two parts, a touch detection device and a touch controller. The touch detection device detects the touch azimuth of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch detection device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 510, and receives and executes commands sent by the processor 510. In addition, the touch panel 5071 may be implemented in various types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch panel 5071, the user input unit 507 may include other input devices 5072. In particular, other input devices 5072 may include, but are not limited to, physical keyboards, function keys (e.g., volume control keys, switch keys, etc.), trackballs, mice, joysticks, and so forth, which are not described in detail herein.
Further, the touch panel 5071 may be overlaid on the display panel 5061, and when the touch panel 5071 detects a touch operation thereon or thereabout, the touch operation is transmitted to the processor 510 to determine a type of touch event, and then the processor 510 provides a corresponding visual output on the display panel 5061 according to the type of touch event. Although in fig. 5, the touch panel 5071 and the display panel 5061 are provided as two separate components to implement the input and output functions of the terminal, in some embodiments, the touch panel 5071 may be integrated with the display panel 5061 to implement the input and output functions of the terminal, which is not limited herein.
The interface unit 508 is an interface through which an external device is connected to the terminal 500. For example, the external devices may include a wired or wireless headset port, an external power (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 508 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the terminal 500 or may be used to transmit data between the terminal 500 and an external device.
The memory 509 may be used to store software programs as well as various data. The memory 509 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, phonebook, etc.) created according to the use of the handset, etc. In addition, the memory 509 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage device.
The processor 510 is a control center of the terminal, connects various parts of the entire terminal using various interfaces and lines, and performs various functions of the terminal and processes data by running or executing software programs and/or modules stored in the memory 509 and calling data stored in the memory 509, thereby performing overall monitoring of the terminal. Processor 510 may include one or more processing units; preferably, the processor 510 may integrate an application processor that primarily handles operating systems, user interfaces, applications, etc., with a modem processor that primarily handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 510.
The terminal 500 may further include a power source 511 (e.g., a battery) for powering the various components, and preferably the power source 511 may be logically connected to the processor 510 via a power management system that performs functions such as managing charging, discharging, and power consumption.
In addition, the terminal 500 may further include some functional modules, which are not shown, and are not described herein.
Referring to fig. 6, fig. 6 is a schematic hardware structure of a network device implementing various embodiments of the present invention, where the network device 60 includes, but is not limited to: bus 61, transceiver 62, antenna 63, bus interface 64, processor 65, and memory 66.
In an embodiment of the present invention, the network device 60 further includes: a computer program stored on the memory 66 and executable on the processor 65. Optionally, the computer program may, when executed by the processor 65, implement the steps of:
and determining whether to share COT of the terminal according to the random access resource used by the terminal.
The network device 60 according to the embodiment of the present invention may implement each process implemented in the method embodiment shown in fig. 2 and achieve the same beneficial effects, and in order to avoid repetition, a detailed description is omitted here.
A transceiver 62 for receiving and transmitting data under the control of a processor 65.
In fig. 6, a bus architecture (represented by bus 61), the bus 61 may comprise any number of interconnected buses and bridges, with the bus 61 linking together various circuits, including one or more processors, represented by processor 65, and memory, represented by memory 66. The bus 61 may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. Bus interface 64 provides an interface between bus 61 and transceiver 62. The transceiver 62 may be one element or may be a plurality of elements, such as a plurality of receivers and transmitters, providing a means for communicating with various other apparatus over a transmission medium. The data processed by the processor 65 is transmitted over a wireless medium via the antenna 63, and further, the antenna 63 receives data and transmits the data to the processor 65.
The processor 65 is responsible for managing the bus 61 and general processing and may also provide various functions including timing, peripheral interfaces, voltage regulation, power management, and other control functions. And memory 66 may be used to store data used by processor 65 in performing operations.
Alternatively, the processor 65 may be CPU, ASIC, FPGA or a CPLD.
The embodiment of the present invention further provides a computer readable storage medium, where a computer program is stored, where the computer program when executed by a processor can implement each process of the method embodiment shown in fig. 1 or fig. 2 and achieve the same technical effects, and in order to avoid repetition, a detailed description is omitted here. The computer readable storage medium is, for example, read-Only Memory (ROM), random access Memory (Random Access Memory RAM), magnetic disk or optical disk.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present invention.
The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the claims, which are to be protected by the present invention.

Claims (12)

1. The resource sharing method is applied to the terminal and is characterized by comprising the following steps:
selecting random access resources;
wherein the random access resource is used for indicating whether the network equipment is allowed to share the channel occupation time COT of the terminal;
wherein, under the condition that the random access resource belongs to a first resource group, the COT allowing the network equipment to share the terminal is indicated;
or, if the random access resource belongs to the second resource group, indicating that the network device is not allowed to share the COT of the terminal;
wherein the random access resource comprises any one of the following:
a random access preamble;
random access opportunity;
wherein in case the random access resource comprises a random access preamble, the different resource groups are distinguished by any one of:
different random access preamble indexes;
different cyclic shift values;
different root sequence numbers.
2. The method according to claim 1, wherein the method further comprises:
according to the PRACH preamble format, adopting the corresponding channel access priority to intercept the channel;
when the channel is detected to be empty, random access is performed.
3. A method for sharing resources, applied to a network device, comprising:
determining whether to share COT of the terminal according to random access resources used by the terminal;
wherein, the determining whether to share the COT of the terminal according to the random access resource used by the terminal includes:
determining COT sharing the terminal under the condition that the random access resource belongs to a first resource group;
or determining not to share the COT of the terminal in the case that the random access resource belongs to the second resource group;
wherein the random access resource comprises any one of the following:
a random access preamble;
random access opportunity;
wherein in case the random access resource comprises a random access preamble, the different resource groups are distinguished by any one of:
different random access preamble indexes;
different cyclic shift values;
different root sequence numbers.
4. A method according to claim 3, characterized in that in case it is determined that the COTs of the terminals are shared, the duration of the COTs of the terminals shared by the network device is: a fixed duration; or, determining by the maximum channel occupation time MCOT of the terminal, where the sum of the duration of the COT of the terminal and the duration of the PRACH transmission of the terminal shared by the network device is less than or equal to the duration of the MCOT.
5. The method according to claim 4, wherein the duration of the COT of the terminal shared by the network device is determined by the MCOT obtained according to the highest priority of channel access corresponding to the PRACH preamble format of the terminal in case of being determined by the MCOT.
6. The method of claim 5, wherein the highest priority for the channel access for which the PRACH preamble format corresponds is agreed upon by a protocol.
7. A method according to claim 3, characterized in that in case the COT of the terminal is determined to be shared, the type of listen before talk LBT employed by the network device in the shared COT is any one of the following:
type 1, type 2;
wherein, the type 1 is direct transmission, and the type 2 is 16us LBT or 25us LBT.
8. The method of claim 7, wherein the LBT type is determined according to any one of:
protocol conventions;
implicit indication of COT;
the PRACH preamble format is implicitly indicated.
9. A terminal, comprising:
a selection module for selecting random access resources;
wherein, the random access resource is used for indicating whether the network equipment is allowed to share the COT of the terminal;
wherein, under the condition that the random access resource belongs to a first resource group, the COT allowing the network equipment to share the terminal is indicated;
or, if the random access resource belongs to the second resource group, indicating that the network device is not allowed to share the COT of the terminal;
wherein the random access resource comprises any one of the following:
a random access preamble;
random access opportunity;
wherein in case the random access resource comprises a random access preamble, the different resource groups are distinguished by any one of:
different random access preamble indexes;
different cyclic shift values;
different root sequence numbers.
10. A network device, comprising:
a determining module, configured to determine whether to share a COT of a terminal according to a random access resource used by the terminal;
the determining module is specifically configured to: determining COT sharing the terminal under the condition that the random access resource belongs to a first resource group; or determining not to share the COT of the terminal in the case that the random access resource belongs to the second resource group;
wherein the random access resource comprises any one of the following:
a random access preamble;
random access opportunity;
wherein in case the random access resource comprises a random access preamble, the different resource groups are distinguished by any one of:
different random access preamble indexes;
different cyclic shift values;
different root sequence numbers.
11. A communication device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the computer program when executed by the processor implements the steps of the resource sharing method as claimed in claim 1 or 2 or the steps of the resource sharing method as claimed in any of claims 3 to 8.
12. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the resource sharing method as claimed in claim 1 or 2, or the steps of the resource sharing method as claimed in any one of claims 3 to 8.
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Publication number Priority date Publication date Assignee Title
CN117560783A (en) * 2022-08-01 2024-02-13 维沃移动通信有限公司 Side link channel occupation time COT sharing method and terminal

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107534535A (en) * 2015-05-08 2018-01-02 华为技术有限公司 Subframe timing with variable initial time
KR20180062956A (en) * 2016-12-01 2018-06-11 한국전자통신연구원 Method for random access in wireless communication system and apparatus for the same

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105636178A (en) * 2014-11-07 2016-06-01 中兴通讯股份有限公司 Unlicensed carrier occupation method and device
CN105682232B (en) * 2016-01-08 2018-03-16 宇龙计算机通信科技(深圳)有限公司 Resource allocation method, device for allocating resources and base station
US11139925B2 (en) * 2016-10-21 2021-10-05 Telefonaktiebolaget Lm Ericsson (Publ) HARQ feedback for unscheduled uplink
CN109309961B (en) * 2017-07-28 2023-06-02 华为技术有限公司 Method for configuring random access, network equipment and terminal equipment
CN110291835B (en) * 2019-05-17 2023-03-10 北京小米移动软件有限公司 Method, system and equipment for acquiring random access configuration information

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107534535A (en) * 2015-05-08 2018-01-02 华为技术有限公司 Subframe timing with variable initial time
KR20180062956A (en) * 2016-12-01 2018-06-11 한국전자통신연구원 Method for random access in wireless communication system and apparatus for the same

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Channel Access Procedure;MediaTek Inc.;《R1-1906543_Discussion on channel access procedure_final》;20190504;正文的第3节 *
R1-1812356 "Channel access procedure in NR-U";MediaTek Inc.;《3GPP tsg_ran\wg1_rl1》;20181103;全文 *

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