Method used for wireless communication, and apparatus

Abstract

Disclosed in the present application are a method used for wireless communication, and an apparatus. A first transmitter sends a first message, the first message indicating a first time domain resource, the first time domain resource consisting of a plurality of time domain sub-resources, and any two of the plurality of time domain sub-resources being discontinuous in time. The message type of the first message is any candidate type in a first candidate type set, and one candidate type in the first candidate type set is RTS. The present application can reserve channel resources, thus reducing channel conflicts and improving the network efficiency.

Description

A method and device for wireless communication

[0001] This application claims priority to Chinese patent application number 202410112585.X, filed with the State Intellectual Property Office on January 26, 2024, entitled "A method and apparatus for wireless communication," the entire contents of which are incorporated herein by reference. Technical Field

[0002] The present application relates to methods and devices in wireless communication systems, and more particularly to methods and devices for reserving channel resources in a wireless local area network (WLAN), reducing channel conflicts, and improving network efficiency. Background Art

[0003] Wi-Fi (Wireless Fidelity) has become a ubiquitous technology in today's world, connecting billions of devices and becoming the preferred method for internet access for an increasing number of users. It is also poised to gradually replace wired access. Due to its relatively simple implementation, reliable communication, high flexibility, and relatively low implementation cost, Wi-Fi has become the mainstream technology standard for WLANs (Wireless Local Area Networks). To adapt to the ever-increasing number of new services and applications and narrow the gap in transmission performance with wired networks, each generation of Wi-Fi standards has focused on improving wireless transmission rates. As Wi-Fi applications continue to demand higher transmission rates, lower latency, and higher reliability, the IEEE (Institute of Electrical and Electronics Engineers) 802.11 Working Group formed the UHR (Ultra High Reliability) Study Group (SG) in 2022, initiating research on the next-generation IEEE 802.11 standard. In 2023, it formed the UHR TG (Task Group) to formally standardize the future Wi-Fi 8 protocol.

[0004] RIS (Reconfigurable Intelligent Surface) is an artificial electromagnetic surface structure with programmable electromagnetic properties, consisting of a large number of independent, low-cost, passive subwavelength resonant units. Each RIS unit has independent electromagnetic wave control capabilities, and its response to wireless signals, such as phase, amplitude, and polarization, can be controlled by changing its parameters and spatial distribution. By superimposing the wireless response signals of a large number of RIS units, specific beam propagation characteristics are formed on a macro scale, thus forming a flexible and controllable shaped beam, eliminating coverage blind spots, enhancing edge coverage, and increasing the rank of multi-stream transmission. RIS technology is considered a key technology and a core vision for future wireless communications due to its low cost, low energy consumption, programmability, ease of deployment, and high shaped gain achieved with larger antenna scales. Summary of the Invention

[0005] Deploying RIS within the existing Wi-Fi network architecture affects the behavior of access points (APs) and terminal devices. One issue is that, due to the hardware characteristics of RIS, existing channel time reservation mechanisms may no longer be applicable or may not be fully applicable for node communications within RIS coverage.

[0006] In response to the above problems, the present application discloses a solution. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be arbitrarily combined with each other. It should be noted that in the description of the present application, only the WLAN scenario is used as a typical application scenario or example; the present application is also applicable to other scenarios other than WLAN facing similar problems (such as relay networks, P2P networks, and scenarios supporting half-duplex user equipment), and can also achieve technical effects similar to those in the WLAN scenario. Furthermore, although the original intention of the present application is for WLAN, the present application can also be used in wireless networks such as WMAN (Wireless Metropolitan Area Network), WRAN (Wireless Regional Area Network), and WSN (Wireless Specialty Network). In addition, the use of a unified solution for different scenarios (including but not limited to WLAN scenarios and WMAN scenarios) can also help reduce hardware complexity and cost. In the absence of conflict, the embodiments of the first node device of the present application and the features in the embodiments can be applied to the second node device, and vice versa. In particular, the interpretation of terminology, nouns, functions, and variables in this application (unless otherwise specified) may refer to the definitions in the IEEE 802.11, IEEE 802.15, and IEEE 802.22 specifications.

[0007] The present application discloses a method in a first node used for wireless communication, characterized by comprising:

[0008] Sending a first message, where the first message indicates a first time domain resource, where the first time domain resource consists of multiple time domain sub-resources, and any two of the multiple time domain sub-resources are discontinuous in time;

[0009] The message type of the first message is any candidate type in a first candidate type set, and one candidate type in the first candidate type set is RTS (request to send).

[0010] As an embodiment, the characteristics of the above method include: multiple discontinuous time domain sub-resources can be reserved at one time through the first message.

[0011] As an embodiment, the characteristics of the above method include: any candidate type included in the first candidate type set can realize the reservation of multiple discontinuous time domain sub-resources.

[0012] As an embodiment, the benefits of the above method include: forward compatibility with the traditional RTS / CTS channel reservation mechanism, etc.

[0013] As an embodiment, the benefits of the above method include: reserving multiple time resources at one time can save signaling overhead.

[0014] As an embodiment, the benefits of the above method include: the present application is an enhancement and expansion of the existing channel time reservation mechanism combined with sectorized operation, which is conducive to accelerating the standardization process and commercial deployment.

[0015] According to one aspect of the present application, the above method is characterized in that the first node is an 802.11AP.

[0016] According to one aspect of the present application, the above method is characterized in that the first node is a user terminal.

[0017] According to one aspect of the present application, the above method is characterized in that the first node is a relay device.

[0018] According to one aspect of the present application, the above method is characterized in that the first time domain resource is one of multiple candidate time domain resources, and any two candidate time domain resources among the multiple candidate time domain resources do not overlap in time.

[0019] According to one aspect of the present application, the above method is characterized in that it includes:

[0020] Sending a second message, where the second message indicates a second time domain resource;

[0021] The message type of the second message is any candidate type in the first candidate type set, and the second time domain resource includes a first moment; the first moment is orthogonal to the first time domain resource, and the first moment is located between the start moment of the first time domain resource and the end moment of the first time domain resource.

[0022] As an embodiment, the second time domain resource is one of the multiple candidate time domain resources.

[0023] As an embodiment, the characteristics of the above method include: the second time domain resources and the first time domain resources do not overlap in time.

[0024] As an embodiment, the benefits of the above method include: facilitating the first node to flexibly schedule and allocate time domain resources.

[0025] As an embodiment, the benefits of the above method include: being helpful in avoiding channel conflicts and alleviating hidden node problems.

[0026] According to one aspect of the present application, the above method is characterized in that it includes:

[0027] Sending a first beacon at a starting time of a first time domain sub-resource, where the first time domain sub-resource is any time domain sub-resource of the multiple time domain sub-resources constituting the first time domain resource, and the first beacon includes a first identifier and a second identifier;

[0028] The first identifier indicates a first sector, which includes multiple areas; the second identifier indicates a first area, which is one of the multiple areas.

[0029] As an embodiment, the coverage of the first area is smaller than the coverage of the first sector.

[0030] As an embodiment, the characteristics of the above method include: the first time domain sub-resource is allocated to one of the multiple areas included in the first sector indicated by the first identifier and the second identifier.

[0031] As an embodiment, the characteristics of the above method include: finer beam coverage can improve the channel quality in each area and increase the system throughput.

[0032] According to one aspect of the present application, the above method is characterized in that it includes:

[0033] After the first beacon, sending data to stations within the first area in the first time domain sub-resource, or receiving data from stations within the first area;

[0034] The first beacon includes at least one group identifier; the station in the first area belongs to at least one group indicated by the at least one group identifier.

[0035] As an embodiment, the characteristics of the above method include: the group identifier can exist simultaneously with the second identifier in this application.

[0036] As an embodiment, the characteristics of the above method include: the method in this application is compatible with technologies such as group sectorization.

[0037] According to one aspect of the present application, the above method is characterized in that it includes:

[0038] Sending a sector training message; receiving a sector feedback message, wherein the sector feedback message indicates the first sector; sending an area training message in the first sector; receiving an area feedback message in the first sector, wherein the area feedback message indicates the first area.

[0039] As an embodiment, the benefits of the above method include: the sector training message and the area training message are beneficial to reducing the time of sector discovery for sites within the coverage of the first node.

[0040] As an embodiment, the benefits of the above method include: the sector training message and the area training message are beneficial for the associated stations in the BSS (basic service set) associated with the first node to wake up only at the indicated time resources to achieve energy saving.

[0041] According to one aspect of the present application, the above method is characterized in that the first message includes a first field, and the first field indicates the time interval between the start times of the multiple time domain sub-resources constituting the first time domain resource.

[0042] The present application discloses a method used in a second node of wireless communication, characterized by comprising:

[0043] receiving a first message indicating a first time domain resource, where the first time domain resource is composed of a plurality of time domain sub-resources, and any two of the plurality of time domain sub-resources are discontinuous in time;

[0044] The message type of the first message is any candidate type in a first candidate type set, and one candidate type in the first candidate type set is RTS.

[0045] According to one aspect of the present application, the above method is characterized in that the second node is an 802.11AP.

[0046] According to one aspect of the present application, the above method is characterized in that the second node is a user equipment.

[0047] According to one aspect of the present application, the above method is characterized in that the second node is a relay device.

[0048] According to one aspect of the present application, the above method is characterized in that the first time domain resource is one of multiple candidate time domain resources, and any two candidate time domain resources among the multiple candidate time domain resources do not overlap in time.

[0049] According to one aspect of the present application, the above method is characterized in that it includes:

[0050] receiving a second message, where the second message indicates a second time domain resource;

[0051] The message type of the second message is any candidate type in the first candidate type set, and the second time domain resource includes a first moment; the first moment is orthogonal to the first time domain resource, and the first moment is located between the start moment of the first time domain resource and the end moment of the first time domain resource.

[0052] According to one aspect of the present application, the above method is characterized in that a second message is received, wherein the second message indicates a second time domain resource;

[0053] The message type of the second message is any candidate type in the first candidate type set, and the second time domain resource includes a first moment; the first moment is orthogonal to the first time domain resource, and the first moment is located between the start moment of the first time domain resource and the end moment of the first time domain resource.

[0054] According to one aspect of the present application, the above method is characterized in that it includes:

[0055] receiving a first beacon at a starting time of a first time domain sub-resource, where the first time domain sub-resource is any time domain sub-resource of the multiple time domain sub-resources constituting the first time domain resource, and the first beacon includes a first identifier and a second identifier;

[0056] The first identifier indicates a first sector, which includes multiple areas; the second identifier indicates a first area, which is one of the multiple areas.

[0057] According to one aspect of the present application, the above method is characterized in that it includes:

[0058] receiving data from a station within the first area in the first time domain sub-resource after the first beacon, or sending data to a station within the first area;

[0059] The first beacon includes at least one group identifier; the station in the first area belongs to at least one group indicated by the at least one group identifier.

[0060] According to one aspect of the present application, the above method is characterized in that it includes:

[0061] receiving a sector training message; sending a sector feedback message, wherein the sector feedback message indicates the first sector; receiving an area training message in the first sector; and sending an area feedback message in the first sector, wherein the area feedback message indicates the first area.

[0062] According to one aspect of the present application, the above method is characterized in that the first message includes a first field, and the first field indicates the time interval between the start times of the multiple time domain sub-resources constituting the first time domain resource.

[0063] The present application discloses a first node used for wireless communication, characterized by comprising:

[0064] A first transmitter sends a first message, where the first message indicates a first time domain resource, where the first time domain resource consists of multiple time domain sub-resources, and any two of the multiple time domain sub-resources are discontinuous in time;

[0065] The message type of the first message is any candidate type in a first candidate type set, and one candidate type in the first candidate type set is RTS.

[0066] The present application discloses a second node used for wireless communication, characterized by comprising:

[0067] A second receiver receives a first message, where the first message indicates a first time domain resource, where the first time domain resource consists of a plurality of time domain sub-resources, and any two of the plurality of time domain sub-resources are discontinuous in time;

[0068] The message type of the first message is any candidate type in a first candidate type set, and one candidate type in the first candidate type set is RTS. BRIEF DESCRIPTION OF THE DRAWINGS

[0069] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0070] FIG1 illustrates a flow chart of signal processing in a first node according to an embodiment of the present application;

[0071] FIG2 illustrates a schematic diagram of a network architecture according to an embodiment of the present application;

[0072] FIG3 illustrates a schematic diagram of a wireless protocol stack according to an embodiment of the present application;

[0073] FIG4 illustrates a schematic diagram of hardware modules of a communication device according to an embodiment of the present application;

[0074] FIG5 illustrates a schematic diagram of a first node device supporting sector beams according to an embodiment of the present application;

[0075] FIG6 illustrates a flow chart of wireless signal transmission between a first node and a second node and a third node according to an embodiment of the present application;

[0076] FIG7 illustrates a schematic diagram of the spatial relationship between a sector and multiple areas according to an embodiment of the present application;

[0077] FIG8 illustrates a schematic diagram of the time relationship between a first time domain resource and a second time domain resource according to an embodiment of the present application;

[0078] FIG9 illustrates a flow chart of wireless signal transmission between a first node and a second node according to one embodiment of the present application;

[0079] FIG10 illustrates a flow chart of wireless signal transmission between a first node and a second node according to an embodiment of the present application;

[0080] FIG11 illustrates a schematic diagram of the time relationship between sector training and regional training according to one embodiment of the present application;

[0081] FIG12 illustrates a structural block diagram of a processing device in a first node according to an embodiment of the present application;

[0082] FIG13 illustrates a structural block diagram of a processing device in a second node according to an embodiment of the present application. DETAILED DESCRIPTION

[0083] The technical solution of the present application will be further described in detail below in conjunction with the accompanying drawings. It should be noted that, unless there is a conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

[0084] Example 1

[0085] Embodiment 1 illustrates a signal processing flow chart in a first node according to an embodiment of the present application, as shown in FIG1 . In FIG1 , each box represents a step.

[0086] In embodiment 1, the first node 100 sends a first message in step 101, where the first message indicates a first time domain resource, where the first time domain resource is composed of multiple time domain sub-resources, and any two of the multiple time domain sub-resources are not continuous in time; wherein the message type of the first message is any candidate type in a first candidate type set, and one candidate type in the first candidate type set is RTS.

[0087] As an embodiment, the first node sends the first message after determining that the channel is idle.

[0088] As an embodiment, the first node determines whether the channel is idle through CCA (Clear Channel Assessment).

[0089] As an embodiment, the first node finds that the received signal strength is less than a first threshold through energy detection, and finds that the received signal strength is less than a second threshold through carrier sensing, and determines that the channel is idle.

[0090] As an embodiment, the first threshold and the second threshold are predefined; the first threshold is greater than the second threshold.

[0091] As an embodiment, the first node is located in an OBSS (overlapping BSS, overlapping basic service set).

[0092] As an embodiment, the BSS COLOR of the first node is different from the BSS COLOR of the received signal, and the received signal strength is less than a third threshold, and the channel is judged to be idle; wherein, the third threshold is adaptive, and the third threshold is between the first threshold and the second threshold.

[0093] As an embodiment, the third threshold is used for OBSS packet detection.

[0094] As an embodiment, the first node determines whether the channel is idle by checking whether NAV (Network Allocation Vector) is zero.

[0095] As an embodiment, the NAV value of the first node is zero.

[0096] As an embodiment, the values ​​of the basic NAV timer (basic NAV timer) and the intra-BSS NAV timer (intra-BSS NAV timer) of the first node are both zero.

[0097] As an embodiment, the first node detects that the channel remains idle for a time period lasting one DIFS (distributed (coordination function) interframe space).

[0098] As an embodiment, the first node detects that the channel remains idle for a time period lasting one EIFS (extended interframe space).

[0099] As an embodiment, the first node detects that the channel remains idle for a time period lasting one AIFS (arbitration interframe space).

[0100] As an embodiment, the first node starts a backoff timer; when the value of the backoff timer is zero, the first node sends the first message.

[0101] As an embodiment, one of the candidate types included in the first candidate type set is RTS.

[0102] As an embodiment, one of the candidate types included in the first candidate type set is CTS (Clear to send).

[0103] As an embodiment, one of the candidate types included in the first candidate type set is a DMG (directional multi-gigabit) CTS frame.

[0104] As an embodiment, one of the candidate types included in the first candidate type set is a Grant frame.

[0105] As an embodiment, one of the candidate types included in the first candidate type set is a trigger frame.

[0106] As an embodiment, one of the candidate types included in the first candidate type set is a beacon frame.

[0107] As an embodiment, one of the candidate types included in the first candidate type set is an extension frame.

[0108] As an embodiment, the first candidate type set includes at least part of {RTS frame, CTS frame, DMG CTS frame, grant frame, trigger frame, beacon frame, extended frame}.

[0109] As an embodiment, the first message of a message type of RTS is an RTS frame.

[0110] As an embodiment, the first information of a message type CTS is a CTS frame.

[0111] As an embodiment, the first information of a message type CTS is a CTS-to-self frame.

[0112] As an embodiment, the first information of a message type of DMG CTS is a DMG CTS frame.

[0113] As an embodiment, the first information of a message type DMG CTS is a DMG CTS-to-self frame.

[0114] As an embodiment, the first message whose message type is a grant frame is a grant frame.

[0115] As an embodiment, the first message whose message type is a trigger frame is a MU-RTS frame, and the value of the trigger type (Trigger Type) subfield in the common information (Common Info) field included in the first message is 3.

[0116] As an embodiment, the first message whose message type is a trigger frame is a trigger frame in which the value of the trigger type subfield included in the common information field is an integer between 8 and 15.

[0117] As an embodiment, the first message whose message type is a beacon frame is a beacon frame.

[0118] As an embodiment, the first message whose message type is an extended frame is a DMG beacon frame.

[0119] As an embodiment, the first message whose message type is an extended frame is an S1G (sub-gigahertz) beacon frame.

[0120] As an embodiment, the first message whose message type is an extended frame includes a subtype (Subtype) subfield in a frame control field having a value between 0010 and 1111.

[0121] As an embodiment, the first time domain resource is not indicated by an extended schedule element.

[0122] As an embodiment, the first time domain resource is not TWT (target wake time).

[0123] As an embodiment, the first message includes a second field, and the second field indicates the first time domain resource.

[0124] As an embodiment, when the first message is one of {RTS frame, CTS frame, DMG CTS frame}, the second field is a duration field.

[0125] As an embodiment, when the first message is a grant frame, the second field is a dynamic allocation information (Dynamic Allocation Info) field; or the second field is located in the dynamic allocation information field.

[0126] As an embodiment, the second field is an extension of the duration field and / or the dynamic allocation information field.

[0127] As an embodiment, the second domain includes multiple newly added domains or sub-domains to implement the indication of the first time domain resources.

[0128] As an embodiment, when the first message is a trigger frame, the second field is a trigger-dependent common information (Trigger Dependent Common Info) subfield included in the common information field.

[0129] As a sub-embodiment of the above embodiment, the trigger-related general information sub-domain includes the newly added multiple new domains or sub-domains.

[0130] As an embodiment, when the message type of the first message is a beacon frame or an extended frame, the first message contains an element indicating the first time domain resource.

[0131] As an embodiment, the element indicating the first time domain resource includes the second domain.

[0132] As an embodiment, the value of the element identifier (Element ID) of the element indicating the first time domain resource is 255, and the value of the element identifier extension (Element ID Extension) is between 136 and 255.

[0133] As an embodiment, the element indicating the first time domain resource includes multiple domains or sub-domains used to indicate the first time domain resource.

[0134] As an embodiment, the first time domain resource includes a positive integer number of time units.

[0135] As an embodiment, each of the multiple time domain sub-resources constituting the first time domain resource includes a continuous time unit in the time domain.

[0136] As an embodiment, a time unit is a time slot.

[0137] As an embodiment, one time unit is 10 milliseconds.

[0138] As an embodiment, one time unit is 1 millisecond.

[0139] As an embodiment, a time unit is a smaller time unit.

[0140] As an embodiment, a time unit is a predefined specific time length.

[0141] As an embodiment, the first time domain resource includes multiple time domain sub-resources, and the multiple time domain sub-resources are orthogonal to each other.

[0142] As an embodiment, any two adjacent time domain sub-resources included in the multiple time domain sub-resources do not overlap and are not continuous.

[0143] As an embodiment, for two adjacent time domain sub-resources, the end time of the former is before the start time of the latter.

[0144] As an embodiment, the first message includes a first field, and the first field indicates the time interval between the start times of the multiple time domain sub-resources constituting the first time domain resource.

[0145] As an embodiment, the second domain includes the first domain, and the first domain is a subdomain of the second domain.

[0146] As an embodiment, the first domain includes multiple values, in milliseconds, indicating the time interval between the start times of any two adjacent time domain sub-resources in the multiple time domain sub-resources.

[0147] As an embodiment, the number of the multiple values ​​included in the first domain is the number of the multiple time domain sub-resources minus one.

[0148] As an embodiment, the i-th value included in the first domain indicates the time interval between the starting moment of the i-th time domain sub-resource and the starting moment of the i+1-th time domain sub-resource; where i = {1, 2,…, N-1}, and N is the number of the multiple time domain sub-resources.

[0149] As an embodiment, for any two adjacent time domain sub-resources, the first field indicates the time interval between the end time of the previous time domain sub-resource and the start time of the next time domain sub-resource.

[0150] As an embodiment, the i-th value included in the first domain indicates the time interval between the end time of the i-th time domain sub-resource and the start time of the i+1-th time domain sub-resource; where i = {1, 2,…, N-1}, and N is the number of the multiple time domain sub-resources.

[0151] As an embodiment, the time interval between the starting moment of the i-th time domain sub-resource and the starting moment of the (i+1)-th time domain sub-resource is the i-th value included in the first domain plus the duration of the i-th time domain sub-resource.

[0152] As an embodiment, the time intervals between any two adjacent time domain sub-resources among the multiple time domain sub-resources constituting the first time domain resource are the same; wherein, at least three time domain sub-resources constitute the first time domain resource.

[0153] As an embodiment, the first domain includes only one value, in milliseconds, indicating the time interval between the start times of any two adjacent time domain sub-resources.

[0154] As an embodiment, the first domain includes only one value, in milliseconds, indicating the time interval between the end time of the former and the start time of the latter in any two adjacent time domain sub-resources.

[0155] As an embodiment, the first message implicitly indicates the starting time of the first time domain resource.

[0156] As an embodiment, the sending time of the first message is the starting time of the first time domain resource.

[0157] As an embodiment, the starting time of the first time domain resource is the same as the starting time of the first time domain sub-resource constituting the first time domain resource.

[0158] As an embodiment, the first time domain sub-resource refers to the time domain sub-resource with the earliest start time among the multiple time domain sub-resources constituting the first time domain resource.

[0159] As an embodiment, the first message implicitly indicates the cut-off time of the first time domain resource.

[0160] As an embodiment, the expiration time of the first time domain resource is the same as the expiration time of the last time domain sub-resource constituting the first time domain resource.

[0161] As an embodiment, the last time domain sub-resource refers to the time domain sub-resource with the latest starting time among the multiple time domain sub-resources constituting the first time domain resource.

[0162] As an embodiment, the first message includes a third field, and the third field indicates the starting time of the first time domain resource.

[0163] As an embodiment, the second domain includes the third domain, and the third domain is a subdomain of the second domain.

[0164] As an embodiment, the starting time is based on a TSF (timing synchronization function) of the first node.

[0165] As an embodiment, the third domain includes multiple values, in milliseconds, indicating the starting moments of the multiple time domain sub-resources.

[0166] As an embodiment, the starting time of the i-th time domain sub-resource is the sending time of the first message plus the i-th value included in the third domain; where i = {1, 2,…, N-1}, and N is the number of the multiple time domain sub-resources.

[0167] As an embodiment, the third domain only includes a value in milliseconds, indicating the starting time of the first time domain sub-resource constituting the first time domain resource.

[0168] As an embodiment, the starting time of the first time domain sub-resource is the sending time of the first message plus the value of the third domain.

[0169] As an embodiment, the first message implicitly indicates the starting moments of the multiple time domain sub-resources except the first time domain sub-resource.

[0170] As an embodiment, the first message includes a fourth field, and the fourth field indicates the duration of the multiple time domain sub-resources constituting the first time domain sub-resource.

[0171] As an embodiment, the second domain includes the fourth domain, and the fourth domain is a subdomain of the second domain.

[0172] As an embodiment, the fourth domain includes multiple values, respectively indicating the durations of the multiple time domain sub-resources.

[0173] As an embodiment, each time domain sub-resource of the multiple time domain sub-resources constituting the first time domain resource includes a positive integer number of the time units.

[0174] As an embodiment, the multiple values ​​included in the fourth field respectively indicate the number of time units included in each time domain sub-resource of the multiple time domain sub-resources.

[0175] As an embodiment, the number of time units included in the first time domain resource is the sum of multiple values ​​included in the fourth domain.

[0176] As an embodiment, the durations of the multiple time domain sub-resources constituting the first time domain resource are the same.

[0177] As an embodiment, the fourth field includes only one value in milliseconds, indicating the duration of any time domain sub-resource among the multiple time domain sub-resources.

[0178] As an embodiment, the first message includes a fifth field, and the fifth field indicates the number of multiple time domain sub-resources constituting the first time domain resource, wherein the value of the fifth field is greater than 2.

[0179] As an embodiment, the second domain includes the fifth domain, and the fifth domain is a subdomain of the second domain.

[0180] As an embodiment, the number of time units included in the first time domain resource is jointly indicated by the fourth field and the fifth field.

[0181] As an embodiment, the multiple time domain sub-resources included in the first time domain resources may span a beacon interval.

[0182] As an embodiment, the first message is sent by a non-target station to update the NAV at the starting position of the multiple time domain sub-resources constituting the first time domain resource.

[0183] As an embodiment, the target sites are multiple sites indicated by the first message.

[0184] As an embodiment, the first message indicates the second identifier, and the target site is a site associated with the second identifier.

[0185] As an embodiment, the non-target station updates its NAV at the starting position of each time domain sub-resource constituting the first time domain resource.

[0186] As an embodiment, the above method has the advantage of being able to avoid interference from sites in the overlapping area.

[0187] As an embodiment, the first time domain resource is one of a plurality of candidate time domain resources, and any two of the plurality of candidate time domain resources do not overlap in time.

[0188] As an embodiment, the first node sends a second beacon to indicate the multiple candidate time domain resources.

[0189] As an embodiment, the second beacon includes an element indicating the multiple candidate time domain resources.

[0190] As an embodiment, the value of the element identifier of the element indicating multiple candidate time domain resources is 255, and the value of the element identifier extension is between 136 and 255.

[0191] As an embodiment, the multiple candidate time domain resources are indicated in an association response frame including the element indicating the multiple candidate time domain resources.

[0192] As an embodiment, the multiple candidate time domain resources are indicated in a probe response frame including the element indicating the multiple candidate time domain resources.

[0193] As an embodiment, the element indicating the multiple candidate time domain resources and the element indicating the first time domain resource are the same element.

[0194] As an embodiment, the first message indicates the first time domain resource from the multiple candidate time domain resources.

[0195] As an embodiment, the first message includes a field indicating the first time domain resource, and the value of the field indicating the first time domain resource is an index of the first time domain resource among the multiple candidate time domain resources.

[0196] As an embodiment, the first message includes a bitmap, each bit in the bitmap indicates one of the multiple candidate time domain resources, and the bit corresponding to the first time domain resource is set to 1.

[0197] As an embodiment, the bit corresponding to the first time domain resource in the bit map included in the first message is set to 0.

[0198] As an embodiment, for any two candidate time domain resources among the multiple candidate time domain resources, the start time of one candidate time domain resource is between the start time and end time of the other candidate time domain resource.

[0199] As an embodiment, for any two candidate time domain resources among the multiple candidate time domain resources, the end time of one candidate time domain resource is between the start time and the end time of the other candidate time domain resource.

[0200] As an embodiment, for any two candidate time domain resources among the multiple candidate time domain resources, the multiple time domain sub-resources included in one candidate time domain resource and the multiple time domain sub-resources included in the other candidate time domain resource appear alternately in time.

[0201] As an embodiment, for any two candidate time domain resources among the multiple candidate time domain resources, the time interval between the start moments of the two time domain sub-resources with the first index respectively included in the two candidate time domain resources is the same as the time interval between the start moments of the two time domain sub-resources with the second index respectively included in the two candidate time domain resources; wherein each candidate time domain resource of the multiple candidate time domain resources includes Q time domain sub-resources; the value of the first index is a positive integer from 1 to Q; the value of the second index is a positive integer from 1 to Q and is not equal to the first index.

[0202] Specifically, the first candidate time domain resource and the second candidate time domain resource are any two candidate time domain resources among the multiple candidate time domain resources, the first candidate time domain resource includes 5 time domain sub-resources, and the indexes corresponding to the time sequence are {1, 2, 3, 4 and 5} respectively; the second candidate time domain resource includes 5 time domain sub-resources, and the indexes corresponding to the time sequence are {0, 1, 2, 3, 4} respectively; the time interval between the starting moment of the time domain sub-resource with index q1 included in the first candidate time domain resource and the starting moment of the time domain sub-resource with index q1 included in the second candidate time domain resource is T; the time interval between the starting moment of the time domain sub-resource with index q2 included in the first candidate time domain resource and the starting moment of the time domain sub-resource with index q2 included in the second candidate time domain resource is also T; wherein, the value of q1 and the value of q2 are both a value between 1 and 4, and are different from each other.

[0203] As an embodiment, the multiple candidate time domain resources are composed of a group of time domain sub-resources, and the multiple time domain sub-resources included in the first time domain resources belong to the group of time domain sub-resources.

[0204] As an embodiment, any two adjacent time domain sub-resources in the group of time domain sub-resources are orthogonal to each other and do not overlap in time.

[0205] As an embodiment, any two adjacent time domain sub-resources in the group of time domain sub-resources are spaced at least 1 SIFS (short interframe space).

[0206] As an embodiment, each bit of the bitmap indicates a time domain sub-resource included in the group of time domain sub-resources.

[0207] As an embodiment, in the bit map included in the first message, the bits corresponding to the multiple time domain sub-resources constituting the first time domain resources are set to 1.

[0208] As an embodiment, in the bit map included in the first message, the bits corresponding to the multiple time domain sub-resources constituting the first time domain resources are set to 0.

[0209] As an embodiment, any one of the multiple candidate time domain resources includes at least a portion of the group of time domain sub-resources.

[0210] As an embodiment, any two candidate time domain resources among the multiple candidate time domain resources do not include the same time domain sub-resource.

[0211] Specifically, the multiple candidate time domain resources include a first candidate time domain resource and a second candidate time domain resource, and the group of time domain sub-resources includes 16 time domain sub-resources with indexes from 0 to 15; the indexes of the multiple time domain sub-resources included in the first candidate time domain resource are {0, 4, 8, 12}, and the indexes of the multiple time domain sub-resources included in the second candidate time domain resource are {1, 5, 9, 13}.

[0212] As an embodiment, the first node reserves the first time domain resource through the first message.

[0213] As an embodiment, the advantage of the above method is that reserving channel time can improve resource allocation efficiency and ensure QoS.

[0214] As an embodiment, the advantage of the above method is that it can reserve multiple discontinuous time domain sub-resources at one time, thereby simplifying system design and saving signaling overhead.

[0215] Example 2

[0216] Example 2 illustrates a schematic diagram of a network architecture according to an embodiment of the present application, as shown in Figure 2. Figure 2 illustrates the architecture of an IEEE 802.11 local area network. The Basic Service Set (BSS) is the basic building block that makes up the IEEE 802.11 local area network and is composed of a group of terminals that can communicate with each other. The BSS includes an independent basic service set (IBSS) and a basic basic service set; wherein, terminals in the IBSS can communicate directly with each other, and terminals in the basic basic service set are associated with a central terminal and communicate with each other through the central terminal, which is also called an access point. The basic basic service set can be interconnected with other basic basic service sets through the distribution system (DS) via the access point. Multiple basic basic service sets can be interconnected via the DS to form an extended basic service set (ESS) to extend the coverage area of ​​the network. As shown in the figure, BSS231 is an IBSS, in which the terminals 201 and 202 included therein can communicate directly. As shown in the figure, BSS232 and BSS233 are basic service sets (BSSs). Communications between terminals in these basic service sets must be forwarded through access points. For example, if terminal 203 in BSS232 needs to send data to terminal 204 in BSS233, it must first send the data to access point 211, which then forwards the data to terminal 204. The reverse is also true. As shown in the figure, BSS232 and BSS233 form ESS234. Access points 211 and 212 in the same ESS234 use the same service set identifier (SSID), and BSS232 and BSS233 typically overlap. Terminals belonging to the same ESS 234 can communicate with each other. As shown in the figure, terminal 203 located in BSS 232 can communicate with terminal 205 located in BSS 233. At this time, access point 211 and access point 212 each have a bridging function, transmitting data between different access points through the distribution system medium (DSM).

[0217] The BSS can identify itself to user terminals via its SSID and to other devices via its Basic Service Set Identifier (BSSID). The BSSID can be the MAC (Medium Access Control) address of access point 211. Access point 211 periodically broadcasts beacon frames including the BSSID, enabling any terminal within the wireless coverage area of ​​access point 211 to associate or reassociate with access point 211 to establish corresponding downlinks 223 and uplinks 224 (the uplink and downlink may be collectively referred to as Wi-Fi links) with access point 211. The beacon may include an identifier for the primary channel used by the corresponding access point 211 and a timing synchronization function for establishing or maintaining timing synchronization with access point 211.

[0218] A terminal is a single addressable instance of a MAC and a logical entity that interfaces with the physical layer (PHY) of a wireless medium (WM). In IEEE 802.11, a terminal is an addressable unit. In an IBSS, a terminal can send beacon frames to announce the presence of a WLAN. In the basic basic service set, in order to establish a Wi-Fi link with an access point 211, the terminal 203 is configured to perform passive or active scanning on frequency channels in one or more frequency bands (e.g., 2.4 GHz (gigahertz), 5 GHz, 6 GHz, or 60 GHz bands). To perform passive scanning, the terminal 203 listens for beacons periodically sent by the corresponding access point 211. To perform active scanning, the terminal 203 generates probe requests and sequentially transmits these probe requests on each channel to be scanned, and listens for probe responses from the access point 211. Terminal 203 identifies or selects an access point 211 to associate with based on scanning information obtained through passive or active scanning, and performs authentication and association operations to establish a communication link with the selected access point 211. At the end of the association operation, access point 211 assigns an association identifier (AID) to terminal 203, and access point 211 uses the AID to track terminal 203. Terminals include, but are not limited to, mobile phones, laptop computers, personal digital assistants (PDAs), media devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, drones, aircraft, narrowband Internet of Things devices, machine-type communication devices, land vehicles, cars, in-vehicle devices, in-vehicle communication units, wearable devices, or any other similar functional devices. Those skilled in the art may also refer to the terminal as a non-AP (access point) station, a non-AP multi-link device (non-AP MLD (multi-link device)), a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology.

[0219] An access point is an entity that includes terminals and provides associated terminals with access to a distribution system (DS) via a wireless medium (WM). An access point includes terminals and a distribution system access function (DSAF). An access point may be referred to as an AP multi-link device (AP MLD), a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a basic service set (BSS), an extended service set (ESS), a TRP (Transmission Reception Point), or some other appropriate term. An access point can provide terminals in a WLAN with access to external networks via corresponding WiFi links.

[0220] The distribution system (DS) is the backbone network for data transmission between access points, commonly referred to as a backbone network, typically Ethernet. The access points provide a unified interface to upper layers, such as the IP (Internet Protocol) layer, through the Logical Link Control (LLC) layer. All user IP packets are transmitted through a gateway (GW). The gateway provides IP address allocation and other functions for terminals within the corresponding network segment. The gateway, also known as an IP router, connects to the Internet service 230. Internet service 230 includes carrier-specific Internet protocol services, specifically the Internet, intranet, IMS (IP Multimedia Subsystem), and PS (Packet Switching) streaming services.

[0221] As an embodiment, the terminal 201 corresponds to the first node in this application, and the terminal 202 corresponds to the second node in this application.

[0222] As an embodiment, the access point 211 corresponds to the first node in this application, and the terminal 203 corresponds to the second node in this application.

[0223] As an embodiment, the access point 211 and the terminals 201 , 202 , and 203 all support WiFi.

[0224] As an embodiment, the access point 211 and the terminals 201, 202, 203 all support the 802.11 protocol.

[0225] As an embodiment, the access point 211 and the terminals 201, 202, and 203 are respectively one of a DMG device, an EDMG (enhanced directional multi-gigabit) device, a CDMG (China directional multi-gigabit) device, a CMMG (China millimeter-wave multi-gigabit) device, an S1G device, a HE (High Efficiency) device, an EHT (Extreme High Throughput) device, and a UHR (Ultra High Reliability) device.

[0226] As an embodiment, the access point 211 is an AP.

[0227] As an embodiment, the access point 211 is an MLD (multi-link device).

[0228] As an embodiment, the access point 211 is a base station.

[0229] As an embodiment, the access point 211 is a home base station (Femtocell).

[0230] As an embodiment, the access point 211 is a router.

[0231] As an embodiment, the access point 211 is a test device (eg, a transceiver simulating some functions of a base station, a signaling tester).

[0232] As an embodiment, the access point 211 is a vehicle-mounted device.

[0233] As an embodiment, the terminal 201 is an MLD.

[0234] As an embodiment, the terminals 202 and 203 are not MLDs.

[0235] As an embodiment, the terminal 201 is an AP.

[0236] As an embodiment, the terminal 202 is a relay device.

[0237] As an embodiment, the terminals 201, 202, and 203 are mobile phones.

[0238] As an embodiment, the terminals 201, 202, and 203 are consumer electronic products such as smart watches.

[0239] As an embodiment, the terminals 201, 202, and 203 are vehicles including cars.

[0240] As an embodiment, the wireless link from the terminal 201 to the terminal 202 is a downlink 222, the terminal 201 is a source terminal, the terminal 202 is a destination terminal, and the downlink 222 is used to perform downlink transmission.

[0241] As an embodiment, the wireless link from the terminal 202 to the terminal 201 is an uplink 221, the terminal 202 is a source terminal, the terminal 201 is a destination terminal, and the uplink 221 is used to perform uplink transmission.

[0242] As an embodiment, the wireless link from the access point 211 to the terminal 203 is a downlink 223, and the downlink 223 is used to perform downlink transmission.

[0243] As an embodiment, the wireless link from the terminal 203 to the access point 211 is an uplink 224, and the uplink 224 is used to perform uplink transmission.

[0244] As an embodiment, the sender of the first message includes the access point 211 or the terminal 201.

[0245] As an embodiment, the recipient of the first message includes terminal 203 or terminal 202.

[0246] As an embodiment, the access point 211 and the terminals 201 / 202 / 203 all support RIS deployment scenarios.

[0247] Example 3

[0248] Example 3 illustrates a schematic diagram of a wireless protocol stack according to an embodiment of the present application, as shown in Figure 3. IEEE 802.11 uses the CSMA (carrier sense multiple access) / CA (collision avoidance) protocol to control access to the transmission medium. Figure 3 shows the wireless protocol architecture with two layers: the data link layer and the physical layer, where the physical layer is the lowest layer and implements various physical layer signal processing functions, which will be referred to as PHY 301 in this article. The data link layer is above the physical layer and is responsible for the link between terminals or between terminals and access points through the physical layer. The data link layer includes MAC 302. MAC302 and PHY301 work together to complete data transmission and various management services.

[0249] MAC 302 is responsible for encapsulating MSDUs (MAC service data units) into MPDUs (MAC protocol data units), delimiting frames, achieving frame synchronization, processing destination and source MAC addresses, and handling frames in the event of transmission errors. It also implements packet fragmentation and defragmentation for data frames or larger management packets from higher layers, and performs integrity protection and cryptographic encapsulation for data requiring protection. PHY 301 is divided into two sublayers: the Physical Layer Convergence Procedure (PLCP) sublayer and the Physical Medium Dependent (PMD) sublayer. Frames received from MAC 302 are then appended with a PHY header at the PLCP sublayer to generate a PPDU (PHY protocol data unit). Typically, a PPDU contains a preamble and a PHY header to facilitate synchronization of received data and demodulate the MPDU. Then, the PMD is responsible for encoding and modulating the MPDU and transmitting it into the air via the antenna.

[0250] MAC302 implements access control. If CSMA / CA-based access is used, the distributed coordination function (DCF) controls access. If contention-free service is required, the point coordination function (PCF), built on top of the DCF, controls access. A hybrid coordination function (HCF) is also an option, somewhere between the DCF and PCF. In the DCF, carrier sensing is used to determine whether the medium is available. Physical carrier sensing is provided by PHY301, while virtual carrier sensing is provided by the network allocation vector (NAV). To ensure medium access rights and uninterrupted data transmission, terminals use the RTS (request to send) / CTS (clear to send) exchange method. IEEE 802.11 frames typically include a duration field to reserve the medium's usage time. Before attempting to transmit any data, the medium must be checked to ensure it is idle. If the medium is busy, access must be delayed and a backoff algorithm must be used to avoid collisions. If the medium remains idle for longer than the distributed interframe space (DIFS), transmission can proceed immediately. In PCF, after an access point takes over the wireless medium, it polls each connected terminal based on a polling list to determine if they have data to transmit. During the contention-free period, a terminal may not transmit data unless requested by the access point via a polling frame. MAC302 may include error recovery functionality, requiring the transmitter to retransmit each frame if an acknowledgment (ACK) is not received. MAC302 can prioritize delay-sensitive services. When there is only one transmit queue, delay-sensitive service data frames are placed at the front of the queue. When multiple transmit queues are used, one queue is dedicated to transmitting high-priority, sensitive services. To save energy, terminals can periodically enter a sleep state. In the sleep state, the access point temporarily buffers frames for each sleeping terminal. If there are buffered frames, the access point will inform the terminal in a subsequent Beacon frame. The terminal, awakened from power saving mode, can use PS (power save)-Poll (poll) frames to retrieve these buffered frames. MAC302 management functions also include channel management, connection management, quality of service, power control, security management, and time synchronization.Channel management includes channel scanning, channel measurement, and channel switching; connection management includes user authentication, association, reassociation, and disassociation, as well as point-to-point connections; quality of service includes QoS service scheduling and traffic flow management; power management includes transmit power management and adaptive transmit power control; security management includes key generation and distribution; and time synchronization includes high-layer synchronization support. Although not shown, the terminal may also have several upper layers above MAC 302, including an LLC layer.

[0251] As an embodiment, the wireless protocol architecture in FIG3 is applicable to the first node in this application.

[0252] As an embodiment, the wireless protocol architecture in FIG3 is applicable to the second node in this application.

[0253] Example 4

[0254] Embodiment 4 illustrates a hardware module diagram of a communication device according to an embodiment of the present application, as shown in FIG4. FIG4 is a block diagram of a first communication device 450 and a second communication device 410 communicating with each other in an access network.

[0255] The first communication device 450 includes a controller / processor 459 , a memory 460 , a data source 467 , a transmit processor 468 , a receive processor 456 , a multi-antenna transmit processor 457 , a multi-antenna receive processor 458 , a transmitter / receiver 454 and an antenna 452 .

[0256] The second communication device 410 includes a controller / processor 475 , a memory 476 , a data source 477 , a receive processor 470 , a transmit processor 416 , a multi-antenna receive processor 472 , a multi-antenna transmit processor 471 , a transmitter / receiver 418 and an antenna 420 .

[0257] The third communication device 490 includes a control component 491 , an information component 496 , a memory 495 , and a reflective surface 492 .

[0258] During transmission from the second communication device 410 to the first communication device 450, at the second communication device 410, upper layer data frames from the Internet or upper layer data frames from a data source 477 are provided to the controller / processor 475. The Internet and the data source 477 represent all protocol layers above the MAC layer. The controller / processor 475 implements the functionality of the MAC layer. During transmission from the second communication device 410 to the first communication device 450, the controller / processor 475 provides header compression, encryption, packet segmentation and reordering, mapping between services and links, and radio resource allocation to the first communication device 450. The controller / processor 475 is also responsible for retransmission of lost packets and signaling to the first communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the PHY layer (i.e., the physical layer). The transmit processor 416 implements coding and interleaving to facilitate forward error correction (FEC) at the second communication device 410, as well as mapping of signal constellations based on various modulation schemes (e.g., binary phase-shift keying (BPSK), quadrature phase-shift keying (QPSK), M-phase-shift keying (M-PSK), and M-quadrature amplitude modulation (M-QAM)). The multi-antenna transmit processor 471 performs digital spatial precoding and beamforming on the coded and modulated symbols to generate one or more spatial streams. The transmit processor 416 then maps each spatial stream to a subcarrier, multiplexes it with a reference signal (e.g., a pilot) in the time and / or frequency domain, and then uses an inverse fast Fourier transform (IFFT) to generate a physical channel carrying the time-domain multicarrier symbol stream. The multi-antenna transmit processor 471 then performs transmit analog precoding / beamforming operations on the time-domain multicarrier symbol stream. Each transmitter 418 converts the baseband multi-carrier symbol stream provided by the multi-antenna transmit processor 471 into a radio frequency stream, and then provides it to a different antenna 420.

[0259] During transmission from the second communications device 410 to the first communications device 450, each receiver 454 receives a signal at the first communications device 450 via its corresponding antenna 452. Each receiver 454 recovers the information modulated onto the RF carrier and converts the RF stream into a baseband multi-carrier symbol stream, which is provided to the receive processor 456. The receive processor 456 and the multi-antenna receive processor 458 implement various signal processing functions at the PHY layer. The multi-antenna receive processor 458 performs receive analog precoding / beamforming operations on the baseband multi-carrier symbol stream from the receiver 454. The receive processor 456 converts the baseband multi-carrier symbol stream, after the receive analog precoding / beamforming operations, from the time domain to the frequency domain using a fast Fourier transform (FFT). In the frequency domain, the receive processor 456 demultiplexes the physical layer data signal and reference signal, where the reference signal is used for channel estimation. The data signal undergoes multi-antenna detection in the multi-antenna receive processor 458 to recover any spatial streams destined for or addressed by the first communications device 450. The symbols on each spatial stream are demodulated and recovered in the receive processor 456, and soft decisions are generated. The receive processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals transmitted by the second communication device 410 on the physical channel. The upper layer data and control signals are then provided to the controller / processor 459. The controller / processor 459 implements the functions of the MAC layer. The controller / processor 459 may be associated with a memory 460 that stores program codes and data. The memory 460 may be referred to as a computer-readable medium. During transmission from the second communication device 410 to the first communication device 450, the controller / processor 459 provides packet fragmentation, decryption, header decompression, and control signal processing to recover the upper layer data frames from the second communication device 410. The upper layer data frames are then provided to all protocol layers above the MAC layer.

[0260] During transmission from the first communication device 450 to the second communication device 410, upper layer data frames are provided to the controller / processor 459 at the first communication device 450 using a data source 467. The data source 467 represents all protocol layers above the MAC layer. Similar to the transmission functionality at the second communication device 410 described in the transmission from the second communication device 410 to the first communication device 450, the controller / processor 459 implements header compression, encryption, packet segmentation and reordering, and mapping services to links. The controller / processor 459 is also responsible for retransmitting lost packets and signaling to the second communication device 410. The transmit processor 468 performs modulation mapping and channel coding, while the multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding and beamforming. The transmit processor 468 then modulates the resulting spatial streams into multi-carrier symbol streams, which undergo analog precoding and beamforming operations in the multi-antenna transmit processor 457 before being provided to the different antennas 452 via the transmitter 454. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a radio frequency symbol stream, and then provides it to the antenna 452.

[0261] During transmission from the first communication device 450 to the second communication device 410, the functionality at the second communication device 410 is similar to the reception functionality at the first communication device 450 described for transmission from the second communication device 410 to the first communication device 450. Each receiver 418 receives RF signals via its corresponding antenna 420, converts the received RF signals into baseband signals, and provides the baseband signals to the multi-antenna receive processor 472 and the receive processor 470. The receive processor 470 and the multi-antenna receive processor 472 collectively implement PHY layer functionality. The controller / processor 475 implements MAC layer functionality. The controller / processor 475 may be associated with a memory 476 that stores program code and data. The memory 476 may be referred to as a computer-readable medium. During transmission from the first communication device 450 to the second communication device 410, the controller / processor 475 provides packet desegmentation, decryption, header decompression, and control signal processing to recover upper layer data frames from the first communication device 450. Upper layer data frames from the controller / processor 475 may be provided to all protocol layers above the Internet or MAC layer.

[0262] The third communication device 490 can be controlled by the first communication device 410 and / or the second communication device 450 to change channel implementation in a controlled manner, improve channel diversity, and provide robustness to channel blocking / fading. The first communication device 410 or the second communication device 450 can be referred to as a control node for the third communication device 490. At least one of the transmit processor 416, receive processor 470, and controller / processor 475 of the first communication device 410 can be configured to perform various aspects in conjunction with the information component 496 or controller component 491 of the third communication device 490, or at least one of the transmit processor 468, receive processor 456, and controller / processor 459 of the second communication device 450 can be configured to perform various aspects in conjunction with the information component 496 or controller component 491 of the third communication device 490.

[0263] The first communication device 410 and / or the second communication device 450 use the third communication device 490 to perform communication, sensing, and / or positioning functions. Information about the third communication device 490 may be known to the network based on network planning, and the base station may provide the location of the third communication device 490 and other information about the third communication device 490 to other nodes (e.g., terminals in a cellular cell). For example, the base station may transmit the information about the third communication device 490 in system information. Each terminal within the coverage area of ​​the cellular cell may receive the system information to discover the existence, location, capabilities, or other information about the third communication device 490.

[0264] During transmission when the first communication device 410 and / or the second communication device 450 communicates using the third communication device 490, a plurality of resonant elements form a reflection surface 492 at the third communication device 490 to receive a downlink signal from the first communication device 410 or an uplink signal from the second communication device 450. Each resonant element can adjust (e.g., apply a phase shift to directionally reflect the received signal) the corresponding received signal. The control component 491 can configure phase or amplitude changes by applying precoding weights to each resonant element, so that the third communication device 490 can reradiate the output beam in different directions given a specific input beam.

[0265] In some cases, when the third communication device 490 operates passively to merely reflect or refract a beam from a transmitter to a receiver, the third communication device 490 can function as a nearly passive device, operating without significant power consumption. In some cases, the direction of reflection or refraction can be controlled by a control node or network controller.

[0266] In the transmission from the control node and the third communication device 490, at the third communication device 490, the information component 496 receives the signal from the control node and further processes the received signal (e.g., digitizes the received signal), and provides the processed signal to the control component 491. At the third communication device 490, the information / data of the control component 491 is provided to the information component 496 for processing and then sent or provided to the control node. The third communication device 490 may include a memory 495 configured to temporarily store the modulation configuration and corresponding time slot provided by the control node.

[0267] As an embodiment, the first communication device 450 apparatus includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor, and the first communication device 450 apparatus at least: sends a first message, the first message indicates a first time domain resource, the first time domain resource is composed of multiple time domain sub-resources, and any two time domain sub-resources of the multiple time domain sub-resources are not continuous in time; wherein the message type of the first message is any candidate type in a first candidate type set, and one candidate type in the first candidate type set is RTS.

[0268] As an embodiment, the first communication device 450 includes: a memory storing a computer-readable instruction program, wherein the computer-readable instruction program generates an action when executed by at least one processor, and the action includes: sending a first message.

[0269] As an embodiment, the second communication device 410 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor. The second communication device 410 at least: receives a first message, the first message indicating a first time domain resource, the first time domain resource consisting of multiple time domain sub-resources, any two of the multiple time domain sub-resources being discontinuous in time; wherein the message type of the first message is any candidate type in a first candidate type set, and one candidate type in the first candidate type set is RTS.

[0270] As an embodiment, the second communication device 410 apparatus includes: a memory storing a computer-readable instruction program, wherein the computer-readable instruction program generates an action when executed by at least one processor, and the action includes: receiving a first message.

[0271] As an embodiment, the first communication device 450 corresponds to the first node in this application.

[0272] As an embodiment, the second communication device 410 corresponds to the second node in this application.

[0273] As an embodiment, the first communication device 450 is an access point.

[0274] As an embodiment, the first communication device 450 is an MLD.

[0275] As an embodiment, the first communication device 450 is a base station.

[0276] As an embodiment, the first communication device 450 is a distribution unit of a base station.

[0277] As an embodiment, the first communication device 450 is a piece of code in a distributed unit of a base station.

[0278] As an embodiment, the second communication device 410 is a terminal.

[0279] As an embodiment, the second communication device 410 is a non-AP STA.

[0280] As an embodiment, the second communication device 410 is an MLD.

[0281] As an embodiment, the second communication device 410 is a relay device.

[0282] As an embodiment, at least one of the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468 or the controller / processor 459 is used to send the first message in this application; and at least one of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470 or the controller / processor 475 is used to receive the first message in this application.

[0283] As an embodiment, at least one of the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468 or the controller / processor 459 is used to send the second message in this application; and at least one of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470 or the controller / processor 475 is used to receive the second message in this application.

[0284] As an embodiment, at least one of the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468 or the controller / processor 459 is used to send the sector training message in this application; and at least one of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470 or the controller / processor 475 is used to receive the sector training message in this application.

[0285] As an embodiment, at least one of the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468 or the controller / processor 459 is used to send the regional training message in this application; and at least one of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470 or the controller / processor 475 is used to receive the regional training message in this application.

[0286] As an embodiment, at least one of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416 or the controller / processor 475 is used to send the sector feedback message in this application; and at least one of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456 or the controller / processor 459 is used to receive the sector feedback message in this application.

[0287] As an embodiment, at least one of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416 or the controller / processor 475 is used to send the regional feedback message in this application; the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456 or the controller / processor 459 is used to receive the regional feedback message in this application.

[0288] Example 5

[0289] Embodiment 5 illustrates a schematic diagram of a first node device supporting sector beams according to an embodiment of the present application, as shown in FIG5 . In FIG5 , the first node includes a multi-antenna transmit processor, which controls phased antenna array 1 and phased antenna array 2, and the first node transmits a sector beam into space.

[0290] As an embodiment, the multi-antenna transmit processor at least corresponds to the multi-antenna transmit processor 457 in FIG. 4 .

[0291] As an embodiment, a sector (Sector) is a transmitting or receiving antenna pattern corresponding to a sector identifier (Sector ID).

[0292] As an embodiment, a sector is a mode for selecting and configuring the phased antenna of the first node device.

[0293] As an embodiment, the first node includes multiple sectors.

[0294] As an embodiment, the sector identifier indicates a transmit or receive antenna mode.

[0295] As an embodiment, the sector identifier indicates a mode for selecting and configuring the phased antenna of the first node device.

[0296] As an embodiment, based on the selection and configuration of the phased antenna, the first node device may form a sector beam.

[0297] As an embodiment, the physical coverage of sector beamforming is the sector coverage.

[0298] As an embodiment, one sector is associated with one sector beam.

[0299] As an embodiment, a sector is associated with a sector beamformed physical coverage.

[0300] As an embodiment, the first node may transmit and / or receive via a sector beam.

[0301] As an embodiment, the first node may transmit or receive through multiple sector beams simultaneously.

[0302] As an embodiment, the first node device supports MU-MIMO (Multiple User-Multiple Input Multiple Output).

[0303] As an embodiment, the first node may activate multiple sectors simultaneously.

[0304] As an embodiment, the first node may form multiple sector beams simultaneously.

[0305] As an embodiment, the first node may transmit or receive simultaneously a beam included in the phased antenna array 1 and a beam included in the phased antenna array 2.

[0306] As an embodiment, the phased antenna array 1 and the phased antenna array 2 are two different DMG antennas.

[0307] As an embodiment, the DMG antenna is a phased array, a unit antenna, or a group of switched beam antennas covered by a quasi-omni antenna pattern.

[0308] Example 6

[0309] Example 6 illustrates a flowchart of wireless signal transmission between a first node and a second node and a third node according to an embodiment of the present application, as shown in Figure 6. In Figure 6, each box represents a step, and the first node N61 communicates with the second node N62 and the third node N63 via a wireless interface. It should be noted that the order in this embodiment does not limit the order of signal transmission and implementation in this application.

[0310] For the first node N61, the process includes: sending a first message in step S611; and sending a second message in step S612.

[0311] For the second node N62, the process includes: receiving a first message in step S621.

[0312] For the third node N63, the process includes: receiving a second message at step S631.

[0313] As an embodiment, the first node N61 is the first node in this application.

[0314] As an embodiment, the second node N62 is the second node in this application.

[0315] As an embodiment, the third node N63 is a node other than the first node and the second node in this application.

[0316] As an embodiment, the third node is a site located in an area outside the first area.As an embodiment, the third node is a user terminal.

[0317] As an embodiment, the third node is an 802.11AP.

[0318] As an embodiment, the third node is a relay device.

[0319] As an embodiment, the second node receives the first message, and the first message indicates the first time domain resource.

[0320] As an embodiment, the third node receives the second message, and the second message indicates the second time domain resource.

[0321] As an embodiment, the message type of the second message is any candidate type in the first candidate type set.

[0322] As an embodiment, the second message is of the same candidate type as the first message.

[0323] As an embodiment, the second message indicates the second time domain resource in the same manner as the first message indicates the first time domain resource.

[0324] As an embodiment, when the first message is a candidate type in the first candidate type set, the second message is another candidate type in the first candidate type set that is different from the message type of the first message.

[0325] As an embodiment, the second time domain resource is a candidate time domain resource among the multiple candidate time domain resources that is different from the first time domain resource.

[0326] As an embodiment, the bit map included in the first message and the bit map included in the second message do not have the same bit set to 1.

[0327] As an embodiment, the second time domain resource includes a first moment; the first moment is any moment on the second time domain resource.

[0328] As an embodiment, the first moment is orthogonal to the first time domain resource; and the first moment is located between the start moment of the first time domain resource and the end moment of the first time domain resource.

[0329] As an embodiment, between two adjacent time domain sub-resources included in the first time domain resource, there exists a time domain sub-resource belonging to the second time domain resource and including the first moment.

[0330] As an embodiment, the way in which the first message indicates the first time domain resource is different from the way in which the second message indicates the second time domain resource.

[0331] As an embodiment, the first message indicates the first time domain resource through at least part of the first domain, the third domain, the fourth domain and the fifth domain; the second message indicates the second time domain resource through the multiple candidate time domain resources and the bit map.

[0332] As an embodiment, the first message indicates the first time domain resource through the multiple candidate time domain resources and the bit map; the second message indicates the second time domain resource through at least part of the first domain, the third domain, the fourth domain and the fifth domain.

[0333] Example 7

[0334] Example 7 illustrates a schematic diagram of the spatial relationship between a sector and multiple regions according to an embodiment of the present application, as shown in Figure 7. In Figure 7, an AP transmits a wireless signal via sector beam 1. The wireless signal on sector beam 1 is forwarded by the RIS to multiple regional beams, thereby covering terminals behind obstacles.

[0335] As an embodiment, the AP is the first node in this application.

[0336] As an embodiment, the terminal is the second node in this application.

[0337] As an embodiment, the RIS forwarding refers to the behavior of RIS reflecting and / or transmitting wireless signals and changing the original propagation direction of the wireless signals.

[0338] As an embodiment, due to the obstruction of the black obstacle shown in FIG. 7 , the LOS (Line of Sight) path of the AP cannot cover the area behind the obstacle.

[0339] As an embodiment, there is a LOS path between the AP and the RIS.

[0340] As an embodiment, there is no LOS path between the AP and the terminal.

[0341] As an embodiment, sector beam 1 of the AP can cover the terminal through forwarding of the RIS.

[0342] As an embodiment, the above method has the advantage of enhancing network coverage.

[0343] As an embodiment, the RIS establishes a virtual LOS path between the AP and the terminal.

[0344] As an embodiment, the channel quality of the virtual LOS path is better than the channel quality when no LOS path exists between the AP and the terminal.

[0345] As an embodiment, the above method has the advantage of improving channel quality and network throughput.

[0346] As an embodiment, the sector beam 1 is the first sector in this application.

[0347] As an embodiment, the sector beam 1 is associated with RIS.

[0348] As an embodiment, the RIS may apply multiple configurations; the sector beam 1 may be forwarded to the physical coverage of the multiple regional beams by the RIS applying the multiple configurations.

[0349] As an embodiment, the multiple configurations applicable to the RIS refer to multiple combinations of parameters such as the switching states and phase adjustments of the RIS arrays.

[0350] As an embodiment, the RIS can only apply one configuration at a time.

[0351] As an embodiment, the multiple regional beams are associated one-to-one with the multiple configurations.

[0352] As an embodiment, the multiple regional beams cover the multiple regions; and the multiple regions at least partially do not overlap.

[0353] As an embodiment, the multiple regional beams include regional beam 1, regional beam 2, and regional beam 3.

[0354] As an embodiment, the downlink transmission of the AP is sent through the sector beam 1 and forwarded by the RIS applying the first configuration; wherein the first configuration is associated with the regional beam 1.

[0355] As an embodiment, the terminal is located in the first area included in the multiple areas; the first area is the physical coverage of the regional beam 1.

[0356] As an embodiment, the terminal receives downlink transmission from the AP forwarded via the regional beam 1.

[0357] As an embodiment, the selection of the sector beam 1 and the regional beam 1 depends on the sector training and regional training described in Example 10 of the present application.

[0358] As an embodiment, the sector beam 1 and the regional beam 1 between the AP and the terminal are reciprocal in uplink and downlink.

[0359] As an embodiment, the first message and the second message are both sent via sector beam 1.

[0360] As an embodiment, the first message and the second message are sent by the first node using the same transmit antenna configuration.

[0361] As an embodiment, the first message sent on the sector beam 1 is forwarded by the RIS to the first area via the regional beam 1.

[0362] As an embodiment, the second message sent on the sector beam 1 is forwarded by the RIS to a second area via the regional beam 2; the second area is the physical coverage of the regional beam 2.

[0363] As an embodiment, the physical coverage of the first area and the second area at least partially do not overlap.

[0364] Although the term "regional beam" is used in this application to associate multiple RIS configurations and multiple regions, any equivalent replacements and evolutions in the physical sense represented by this term should be within the scope of protection of this application.

[0365] Example 8

[0366] Embodiment 8 illustrates a schematic diagram of the time relationship between the first time domain resource and the second time domain resource according to an embodiment of the present application, as shown in Figure 8. In Figure 8, a rectangle filled with a left slash represents the first time domain resource (including multiple time domain sub-resources), a rectangle filled with a vertical line represents the second time domain resource (including multiple time domain sub-resources), and an unfilled rectangle represents other candidate time domain resources in the multiple candidate resources except the first time domain resource and the second time domain resource.

[0367] As an embodiment, the first time domain resource is indicated by the first message sent by the first node in this application.

[0368] As an embodiment, the second time domain resource is indicated by the second message sent by the first node in this application.

[0369] As an embodiment, the multiple candidate time domain resources include the first time domain resources and the second time domain resources.

[0370] As an embodiment, the multiple time domain sub-resources included in the second time domain resources are orthogonal to the multiple time domain sub-resources included in the first time domain resources.

[0371] As an embodiment, the multiple time domain sub-resources included in the second time domain resources and the multiple time domain sub-resources included in the first time domain resources are alternately distributed in time.

[0372] As an embodiment, the first moment is located on the time domain sub-resource represented by the rectangle filled with the first vertical line in FIG. 7 .

[0373] As an embodiment, the first time is located between the end time of the time domain sub-resource represented by the first rectangle filled with left slash and the start and end times of the time domain sub-resource represented by the second rectangle filled with left slash included in the first time domain resource.

[0374] As an embodiment, the distance L1 between the start time of the time domain sub-resource represented by the first rectangle filled with a left slash and the start and end time of the time domain sub-resource represented by the second rectangle filled with a left slash included in the first time domain resource, and the distance L2 between the start time of the time domain sub-resource represented by the first rectangle filled with a vertical line and the start and end time of the time domain sub-resource represented by the second rectangle filled with a vertical line included in the second time domain resource, have the relationship L1=L2.

[0375] As an embodiment, the RIS applies the first configuration in the first time domain resources and applies the second configuration in the second time domain resources; wherein the second configuration is a configuration among the multiple configurations that is different from the first configuration.

[0376] As an embodiment, downlink transmission sent by the first sector on the multiple candidate time domain resources is forwarded by the RIS to the multiple areas respectively.

[0377] As an embodiment, downlink transmission sent by the first sector on the first time domain resource is forwarded by the RIS to the first area.

[0378] As an embodiment, downlink transmission sent by the first sector on the second time domain resource is forwarded by the RIS to the second area.

[0379] As an embodiment, downlink transmission sent in the first sector is not forwarded to the first area and the second area at the same time.

[0380] As an embodiment, the second node receiving the first message sends an uplink transmission on the first time domain resource through the transmitting antenna configuration associated with the first area; the uplink transmission is forwarded by the RIS.

[0381] As an embodiment, the first node receives the uplink transmission from the second node from the RIS via the receive antenna configuration associated with the first sector on the first time domain resource.

[0382] Example 9

[0383] Example 9 illustrates a flowchart of wireless signal transmission between a first node and a second node according to an embodiment of the present application, as shown in FIG9 . In FIG9 , each box represents a step in which the first node N91 and the second node N92 communicate via a wireless interface. It should be noted that the order in this example does not limit the order of signal transmission and implementation in this application.

[0384] For the first node N91, the process includes: sending a first message in step S911; sending a first beacon in step S912; receiving a first data frame in step S913; and sending a second data frame in step S914.

[0385] For the second node N92, the process includes: receiving a first message at step S921; receiving a first beacon at step S922; sending a first data frame at step S923; and receiving a second data frame at step S924.

[0386] As an embodiment, the first node N91 is the first node in this application.

[0387] As an embodiment, the second node N92 is the second node in this application.

[0388] As an embodiment, the second node receives the first message indicating a first time domain sub-resource; the first time domain sub-resource is any time domain sub-resource among the multiple time domain sub-resources constituting the first time domain resource.

[0389] As an embodiment, the first message indicates the start time and duration of the first time domain sub-resource.

[0390] As an embodiment, the first node sends the first beacon at the starting time of the first time domain sub-resource.

[0391] As an embodiment, the first beacon indicates the duration of the first time domain sub-resource.

[0392] As an embodiment, the first beacon is used to activate the first area.

[0393] As an embodiment, the activating the first area includes: the first node adopting the antenna configuration associated with the first sector and the first configuration of the RIS associated with the first area to send, or receive.

[0394] As an embodiment, the activation of the first area includes: the first node using a group of antennas and RIS configuration for the first area to send, or receive.

[0395] As an embodiment, the activation of the first area includes: the first node adopting a set of synthetic antenna beams and RIS configuration for the first area to transmit, or receive.

[0396] As an embodiment, the group of antennas for the first area is the same as the group of antennas for the first sector.

[0397] As an embodiment, the set of synthetic antenna beams for the first area is the same as the set of synthetic antenna beams for the first sector.

[0398] As an embodiment, the first beacon includes a first identifier and a second identifier.

[0399] As an embodiment, the first identifier indicates a first sector, and the first sector includes multiple areas; the second identifier indicates a first area, and the first area is one of the multiple areas.

[0400] As an embodiment, the first identifier and the second identifier uniquely indicate the first area.

[0401] As an embodiment, the first message is sent through the first sector and forwarded to the first area by the RIS applying the first configuration; wherein the second identifier is associated with the first configuration.

[0402] As an embodiment, the second identifier is associated with the first time domain resource.

[0403] As an embodiment, the first beacon is sent through the first sector and forwarded to the first area by the RIS applying the first configuration; wherein the second identifier is associated with the first configuration.

[0404] As an embodiment, the second node is located in the first area; the second node is associated with the second identifier.

[0405] As an embodiment, the NAV of the second node is not zero at a time outside the first time domain resource.

[0406] As an embodiment, the second node resets its NAV at the expiration time of the first time domain sub-resource, and the value of the NAV is the time length between the expiration time of the first time domain sub-resource and the second time.

[0407] As an embodiment, the second moment is the starting moment of the adjacent time domain sub-resource after the first time domain sub-resource in the first time domain resource; or, the second moment is the ending moment of the multiple candidate time domain resources, whichever comes first.

[0408] As an embodiment, the NAV of the second node at the starting moment of the first time domain sub-resource is zero.

[0409] As an embodiment, the first node sends data to a station in the first area in the first time domain sub-resource after the first beacon, or receives data from a station in the first area.

[0410] As an embodiment, the first beacon includes at least one group identifier (Group ID); the station in the first area belongs to at least one group indicated by the at least one group identifier.

[0411] As an embodiment, the second node belongs to at least one group indicated by the at least one group identifier.

[0412] As an embodiment, the first node and the second node perform frame exchange in the first time domain sub-resource after the first beacon.

[0413] As an embodiment, the frame exchange includes at least the first data frame and the second data frame.

[0414] As an embodiment, the frame exchange further includes more uplink frame transmissions and downlink frame transmissions, as well as necessary confirmation messages, etc.

[0415] As an embodiment, the first beacon is used to allocate the first time domain sub-resource.

[0416] As an embodiment, at least part of the first time domain sub-resource is allocated to the second node.

[0417] As an embodiment, at least part of the first time domain sub-resource is used for contention access of the site in the first area; the site in the first area includes the second node.

[0418] As an embodiment, the first beacon is a DMG beacon frame, the DMG beacon frame includes an extended scheduling element, the extended scheduling element includes at least one allocation domain whose source AID domain is the AID (Association Identifier) ​​of the second node; the target AID of the allocation domain indicates the first node.

[0419] As an embodiment, the source AID field and the target AID field of the allocation field are both broadcast AIDs.

[0420] As an embodiment, the second node exclusively occupies the time domain resources indicated by the allocation domain and performs the frame exchange with the first node.

[0421] As an embodiment, the second node competes for a channel on the time domain resources indicated by the allocation field.

[0422] As an embodiment, after the second node successfully competes, it performs the frame exchange with the first node during the remaining time on the time domain resources indicated by the allocation domain.

[0423] As an embodiment, within the first time domain sub-resource, once selected, the first node and the second node will not change the sector beam of the first sector and the regional beam of the first area indicated by the first identifier and the second identifier.

[0424] As an embodiment, the first node cannot communicate with sites in any two or more areas among the multiple areas included in the first sector at the same time.

[0425] As an embodiment, the first node can only communicate with sites within the first area on the first time domain resources through the first sector.

[0426] Example 10

[0427] Example 10 illustrates a flowchart of wireless signal transmission between a first node and a second node according to an embodiment of the present application, as shown in Figure 10 . In Figure 10 , each box represents a step in which the first node N101 and the second node N102 communicate via a wireless interface. It should be noted that the order in this example does not limit the order of signal transmission and implementation in this application.

[0428] For the first node N101, the process includes: sending a sector training message at step S1011; receiving a sector feedback message at step S1012; sending an area training message at step S1013; and receiving an area feedback message at step S1014.

[0429] For the second node N102, the process includes: receiving a sector training message at step S1021; sending a sector feedback message at step S1022; receiving an area training message at step S1023; and sending an area feedback message at step S1024.

[0430] As an embodiment, the first node N101 is the first node in this application.

[0431] As an embodiment, the second node N102 is the second node in this application.

[0432] As an embodiment, the sector feedback message indicates the first sector.

[0433] As an embodiment, the area training message is for the multiple areas included in the first sector.

[0434] As an embodiment, the area feedback message indicates the first area.

[0435] As an embodiment, the first node and the second node have the capability of supporting sector training and area training.

[0436] As an embodiment, the first node and the second node are in an associated state; the first node exchanges the capability of supporting sector training and area training with the second node before sending the first beacon.

[0437] As an embodiment, the sector training message includes multiple sector training NDP (Null Data PPDU, Null Data Physical Layer Protocol Data Unit) CTS frames.

[0438] As an embodiment, the multiple sector training NDP CTS frames are transmitted on all sectors included in the first node.

[0439] As an embodiment, the multiple sector training NDP CTS frames are sent on different sector beams.

[0440] As an embodiment, the multiple sector training NDP CTS frames correspond one-to-one to multiple sector identifiers.

[0441] As an embodiment, the value of the NDP CMAC PPDU Type field of the sector training NDP CTS frame is 0.

[0442] As an embodiment, the sector training NDP CTS frame includes an address indication bit (Address Indication bit) whose value is 1.

[0443] As an embodiment, the sector training NDP CTS frame includes a RA / Partial BSSID (Receive address / Partial BSSID) field whose value is the partial basic service set identifier of the basic service set of the first node.

[0444] As an embodiment, the sector training message includes a +HTC frame sent before the plurality of consecutive sector training NDP CTS frames.

[0445] As an embodiment, the +HTC frame included in the sector training message and the first sector training NDP CTS frame are separated by a SIFS interval.

[0446] As an embodiment, the +HTC frame included in the sector training message is used to indicate the start of sector training.

[0447] As an embodiment, the value of the type field in the frame control field included in the +HTC frame is 01, and the value of the subtype field is 0111.

[0448] As an embodiment, the +HTC frame is a control wrapper frame.

[0449] As an embodiment, the +HTC frame includes a HT (high-throughput) control field.

[0450] As an embodiment, the value of the HT NDP announcement subfield included in the +HTC frame included in the sector training message is 1.

[0451] As an embodiment, the second node sends a sector training request frame to the first node; wherein the sector training request frame is used to request the first node to send the sector training message.

[0452] As an embodiment, the sector training request frame is a +HTC frame; the sector training request frame includes an HT variant control (HT variant Control) field, and the value of the MAI (MCS (Modulation and coding scheme) request or ASEL (antenna selection) indication, modulation and coding scheme request or antenna selection indication) subfield in the link adaptation control (Link Adaptation Control subfield) subfield included in the HT variant control field is 14.

[0453] As an embodiment, the value of the MAI subfield is 14, indicating that the MFB / ASELC (MCS feedback and antenna selection command / data, modulation and coding scheme and antenna selection command / data) subfield is interpreted as ASELC (antenna selection).

[0454] As an embodiment, the value of the antenna selection command subfield in the MFB / ASELC subfield is 1, and the value of the antenna selection data subfield is 0 or between 1 and 15.

[0455] As an embodiment, the first beacon includes an indication of a training period for sector training and a beacon interval.

[0456] As an embodiment, the sector training message includes a plurality of beacons.

[0457] As an embodiment, the frame type of the multiple beacons included in the sector training message is a traditional beacon frame, or one of a DMG beacon frame and an S1G beacon frame.

[0458] As an embodiment, the plurality of beacons included in the sector training message is used by the second node to determine the optimal sector.

[0459] As an embodiment, the multiple beacons included in the sector training message are sent periodically.

[0460] As an embodiment, the sector training message includes multiple beacons transmitted on different sector beams.

[0461] As an embodiment, any beacon of the multiple beacon frames included in the sector training message includes a sector identifier.

[0462] As an embodiment, any beacon among the multiple beacons included in the sector training message includes only one sector identifier.

[0463] As an embodiment, the sector training message includes multiple beacons including different sector identifiers.

[0464] As an embodiment, at least part of the multiple beacons included in the sector training message are associated with the multiple sectors.

[0465] As an embodiment, one of the multiple beacons included in the sector training message includes the first identifier.

[0466] As an embodiment, the plurality of beacons included in the sector training message include a sector scanning field.

[0467] As an embodiment, the sector training message includes a plurality of SSW (sector sweep) frames; the SSW frame includes a sector sweep field.

[0468] As an embodiment, the value of the direction subfield included in the sector scanning field is 0.

[0469] As an embodiment, the value of the CDOWN (down counter) subfield included in the sector scan domain is the number of the DMG beacon frames or the SSW frames remaining to be transmitted, and the initial value of the CDOWN subfield is the sum of the number of all sectors included in all DMG antennas.

[0470] As an embodiment, the sector scan field includes a sector identification field indicating a sector identification associated with the current DMG beacon frame or SSW frame.

[0471] As an embodiment, the sector scan field includes a DMG antenna identification subfield indicating a DMG antenna identification associated with the current DMG beacon frame or SSW frame.

[0472] As an embodiment, the multiple SSW frames are respectively associated with multiple DMG antennas, which are indicated by the DMG antenna identification subfield.

[0473] As an embodiment, the DMG antenna identifier and the sector identifier uniquely indicate one sector among the multiple sectors.

[0474] As an embodiment, the first node simultaneously receives sector feedback messages from multiple terminals associated with it.

[0475] As an embodiment, the first node receives a sector feedback message from the second node in the present application.

[0476] As an embodiment, the sector feedback message indicates the first sector.

[0477] As an embodiment, the sector feedback message is an SSW frame, and the SSW frame includes an SSW feedback field.

[0478] As an embodiment, the SSW feedback domain includes a sector selection subdomain, a DMG antenna selection subdomain and an SNR reporting subdomain.

[0479] As an embodiment, the sector selection subfield indicates the first sector.

[0480] As an embodiment, the DMG antenna selection subfield indicates the DMG antenna to which the first sector belongs.

[0481] As an embodiment, the SNR reporting subfield indicates an SNR (signal-to-noise radio) measured on the SSW frame of the first sector.

[0482] As an embodiment, the sector feedback message is an unprotected S1G Action frame.

[0483] As an embodiment, the value of the unprotected S1G action field included in the sector feedback message is 9.

[0484] As an embodiment, the unprotected S1G action frame includes a Sector ID Index field.

[0485] As an embodiment, the sector identifier index field includes the first identifier indicating the first sector, an SNR, and a receiving sector bitmap.

[0486] As an embodiment, the first sector is preferred.

[0487] As an embodiment, the second node selects the first sector from the multiple sectors according to the immediate CSI and provides feedback.

[0488] As an embodiment, the second node selects the first sector from the multiple sectors according to the average CSI and provides feedback.

[0489] As an embodiment, the selection of the first sector by the second node is implementation-dependent.

[0490] As an embodiment, the SNR of the first sector is a quantized value of instantaneous CSI or average CSI.

[0491] As an embodiment, the SNR of the first sector is obtained by measuring the NDP CTS frames of the multiple sector training by the second node.

[0492] As an embodiment, the SNR of the first sector is obtained by measuring the multiple beacons by the second node.

[0493] As an embodiment, the SNR of the first sector is obtained by measuring the multiple SSW frames by the second node.

[0494] As an embodiment, the SNR of the first sector is greater than a first threshold, and the first threshold is predefined.

[0495] As an embodiment, the value of the bit corresponding to the sector identifier associated with the multiple sector training NDP CTS frames in the received sector bitmap is 1.

[0496] As an embodiment, the value of the bit corresponding to the sector identifier included in the multiple beacons in the received sector bitmap is 1.

[0497] As an embodiment, the value of the bit corresponding to the sector identifier of at least the first sector in the received sector bitmap is 1.

[0498] As an embodiment, the first node determines the optimal sector for the second node based on the received sector feedback message.

[0499] As an embodiment, the selection of the first sector by the first node is implementation dependent.

[0500] As an embodiment, the first node sends an area training message in the first sector.

[0501] As an embodiment, the behavior of the first node sending an area training message is a response to the behavior of receiving a sector training feedback.

[0502] As an embodiment, the sector feedback message explicitly or implicitly indicates an area training request.

[0503] As an embodiment, the regional training message is used for RIS configuration training.

[0504] As an embodiment, the first node is configured with multiple area identifiers, and the multiple area identifiers are used to indicate multiple RIS configurations.

[0505] As an embodiment, the second identifier is an area identifier, and the second identifier indicates the first configuration.

[0506] As an embodiment, the area training message includes multiple area training NDP CTS frames.

[0507] As an embodiment, the multiple area training NDP CTS frames are associated with multiple area identifiers.

[0508] As an embodiment, each area training NDP CTS frame in the plurality of area training NDP CTS frames is associated with a combination of a sector identifier and an area identifier.

[0509] As an embodiment, one of the sector identifiers and one of the area identifiers indicates a combination of a transmit or receive antenna pattern of the first node and a RIS parameter configuration.

[0510] As an embodiment, one sector identifier and one area identifier uniquely indicate an area included in a sector of the first node.

[0511] As an embodiment, the multiple area training NDP CTS frames are sent periodically and continuously.

[0512] As an embodiment, the multiple area training NDP CTS frames are transmitted over the multiple areas of the first sector.

[0513] As an embodiment, the multiple area training NDP CTS frames are spaced apart by one SIFS.

[0514] As an embodiment, the order in which each area training NDP CTS frame in the multiple area training NDP CTS frames is sent is related to the area identifier.

[0515] As an embodiment, the order in which each area training NDP CTS frame in the multiple area training NDP CTS frames is sent is first in ascending order of the size of the area identifier, and then in ascending order of the size of the multiple sector identifiers.

[0516] As an embodiment, the advantage of the above sending order is that the overhead of indicating RIS configuration changes can be reduced.

[0517] As an embodiment, the order in which each of the plurality of area training NDP CTS frames is sent is implementation-dependent.

[0518] As an embodiment, each of the plurality of area training NDP CTS frames is transmitted on the same sector beam.

[0519] As an embodiment, each of the multiple regional training NDP CTS frames is forwarded by the RIS to the multiple regions in a different RIS configuration.

[0520] As an embodiment, the second node derives the area identifier of the area association based on the time relationship between receiving the multiple area training NDP CTS frames.

[0521] As an embodiment, the value of the NDP CMAC PPDU Type field of the area training NDP CTS frame is 0.

[0522] As an embodiment, the area training NDP CTS frame includes an address indication bit (Address Indication bit) with a value of 1.

[0523] As an embodiment, the area training NDP CTS frame includes a RA / Partial BSSID field whose value is a partial basic service set identifier of the basic service set of the first node.

[0524] As an embodiment, the area training message includes a +HTC frame that is spaced one SIFS apart from the first area training NDP CTS frame before the multiple area training NDP CTS frames.

[0525] As an embodiment, the value of the HT NDP announcement subfield included in the +HTC frame included in the area training message is 1.

[0526] As an embodiment, the +HTC frame included in the area training message is used to indicate the start of area training.

[0527] As an embodiment, the second node sends an area training request frame after step S922, where the area training request frame is used to request the first node to send an area training message.

[0528] As an embodiment, the regional training request frame is a +HTC frame; the regional training request frame includes an HT variant control field, the value of the MAI subfield in the link adaptation control subfield included in the HT variant control field is 14, and the value of the antenna selection command subfield in the MFB / ASELC subfield is 7.

[0529] As an embodiment, in response to receiving the sector training request frame, the first node sends a fifth beacon; the fifth beacon includes an indication of a training period and a beacon interval for regional training.

[0530] As an embodiment, the fifth beacon and the first beacon are the same beacon.

[0531] As an embodiment, the area training request frame and the sector training request frame are the same +HTC frame.

[0532] As an embodiment, the above method has the advantage of reducing beacon overhead and training request overhead.

[0533] As an embodiment, the area training message includes a plurality of beacons.

[0534] As an embodiment, the plurality of beacons included in the area training message is used by the second node to determine the optimal area / optimal RIS configuration.

[0535] As an embodiment, the multiple beacons included in the area training message and the multiple beacons included in the sector training message have some identical beacons.

[0536] As an embodiment, the frame type of the multiple beacons included in the area training message is a traditional beacon frame, or one of a DMG beacon frame and an S1G beacon frame.

[0537] As an embodiment, the multiple beacons included in the area training message are sent periodically.

[0538] As an embodiment, any beacon of the multiple beacons included in the area training message includes an element indicating the area identifier.

[0539] As an embodiment, the value of the element identifier of the element indicating the area identifier is 255, and the value of the element identifier extension is between 136 and 255.

[0540] As an embodiment, the element indicating the area identifier indicates both the sector identifier and the area identifier.

[0541] As an embodiment, any beacon among the multiple beacons included in the area training message indicates only one area identifier.

[0542] As an embodiment, any two beacons among the multiple beacons included in the area training message will not simultaneously indicate the same sector identifier and the same area identifier.

[0543] As an embodiment, the area training message includes multiple area training beacons with the same sector identifier and are sent on the same sector beam, but are forwarded by RIS to the multiple areas included in the first sector respectively with different RIS configurations.

[0544] As an embodiment, one of the multiple beacons included in the area training message includes the first identifier and the second identifier.

[0545] As an embodiment, the plurality of beacons included in the area training message include an area scanning domain.

[0546] As an embodiment, the area training message includes multiple SSW frames; the SSW frame includes an area scanning field.

[0547] As an embodiment, the value of the direction subfield included in the area scanning field is 0.

[0548] As an embodiment, the value of the CDOWN (down counter) subfield included in the area scan field is the number of the DMG beacon frames or the SSW frames remaining to be transmitted, and the initial value of the CDOWN subfield is the number of all areas included in the first sector.

[0549] As an embodiment, the area scan field includes an area identification field indicating an area identification associated with the current DMG beacon frame or SSW frame.

[0550] As an embodiment, the area scanning domain is included in the sector scanning domain.

[0551] As an embodiment, the DMG antenna identifier, the sector identifier and the area identifier uniquely indicate an area in the first sector.

[0552] As an embodiment, one of the multiple SSW frames included in the area training message includes both the first identifier and the second identifier.

[0553] As an embodiment, the second node sends an area feedback message to the first sector; the area feedback message includes the second identifier, and the second identifier indicates the first area.

[0554] As an embodiment, the area feedback message is an SSW frame, and the SSW frame includes an SSW feedback field; the SSW feedback field includes an area selection subfield and an SNR reporting subfield.

[0555] As an embodiment, the region selection subfield indicates the first region; the region selection subfield includes the second identifier.

[0556] As an embodiment, the SNR reporting subfield indicates an SNR (signal-to-noise radio) measured for the SSW frame of the first area.

[0557] As an embodiment, the regional feedback domain includes both the regional selection subdomain and the sector selection subdomain.

[0558] As an embodiment, the area feedback message is an unprotected S1G action frame; the unprotected S1G action frame includes an unprotected S1G action field between 12 and 255.

[0559] As an embodiment, the second node selects the second identifier based on a measurement of the area training message.

[0560] As an embodiment, the second node selects the at least one area identifier according to the immediate CSI and provides feedback.

[0561] As an embodiment, the second node selects the at least one area identifier according to the average CSI and provides feedback.

[0562] As an embodiment, the selection of the second identifier by the second node is implementation-dependent.

[0563] As an embodiment, the first node selecting the optimal area according to the area feedback message is implementation-related.

[0564] As an embodiment, the combination of the sector identifier and the area identifier indicates the optimal area of ​​the second node.

[0565] As an embodiment, the combination of a sector identifier and an area identifier indicates the optimal transmitting antenna mode and optimal RIS parameter configuration of the first node for the second node in this application.

[0566] As an embodiment, the combination of a sector identifier and an area identifier is a combination of the first identifier and the second identifier.

[0567] As an embodiment, the first node does not change its transmission power during sending the sector training message.

[0568] As an embodiment, the first node does not change its transmission power during sending the area training message.

[0569] As an embodiment, the transmission power of the sector training message and the area training message is preconfigured.

[0570] As an embodiment, the transmission power of the sector training message and the area training message is different.

[0571] As an embodiment, the receiving antenna configuration of the second node during the sector training message and the area training message is a quasi-omni mode.

[0572] Example 11

[0573] Example 11 illustrates a schematic diagram of the time relationship between sector training and regional training according to an embodiment of the present application, as shown in Figure 11. Figure 11 includes the sector training phase and the regional training phase, and the width of each rectangle along the arrow direction represents the occupied time domain resources, but does not represent the absolute occupied time.

[0574] As an embodiment, the first node includes N sectors.

[0575] As an embodiment, the first node sends a sector training message within a duration T1 of sector training.

[0576] As an embodiment, the sector training message includes N consecutive sector training NDP CTS frames respectively sent on the N sectors.

[0577] As an embodiment, the N consecutive sector training NDP CTS frames are sent on different sector beams.

[0578] As an embodiment, the order in which each sector-training NDP CTS frame in the N consecutive sector-training NDP CTS frames is sent is related to the sector identifier.

[0579] As an embodiment, the time domain position of each sector training NDP CTS frame in the N consecutive sector training NDP CTS frames corresponds to the sector identifier of the sector beam.

[0580] As an embodiment, each sector training NDP CTS frame in the N consecutive sector training NDP CTS frames is sent in ascending order according to its associated sector identifier.

[0581] As an embodiment, there is a SIFS interval between any two sector training NDP CTS frames in the N consecutive sector training NDP CTS frames.

[0582] As an embodiment, the duration T1 of the sector training is not less than the sum of the transmission time of N sector training NDP CTS frames and N-1 SIFS.

[0583] As an embodiment, the sector training message is sent within the first TXOP.

[0584] As an embodiment, the first node receives a sector training request from the second node in the present application within the first TXOP.

[0585] As an embodiment, the sector training message is sent in a sector sounding RAW (restricted access window).

[0586] As an embodiment, the first node sends a third beacon before sector training, and the third beacon is used to instruct sector detection in a subsequent beacon interval.

[0587] As an embodiment, the third beacon includes an RPS (RAW Parameter Set) element, and the RPS element includes at least one RAW allocation subfield.

[0588] As an embodiment, the first RAW allocation subdomain in the at least one RAW allocation subdomain is associated with the second node in this application.

[0589] As an embodiment, the value of the RAW type field included in the RAW control subfield included in the first RAW allocation subfield is 1, indicating sounding RAW.

[0590] As an embodiment, the value of the RAW type option subfield included in the RAW control subfield included in the first RAW allocation subfield is 2, indicating sector detection RAW.

[0591] As an embodiment, the first RAW allocation subfield indicates the start time and duration of the sector training.

[0592] As an embodiment, the sector detection RAW includes the duration T1 of the sector training.

[0593] As an embodiment, the sector training message includes N beacons respectively transmitted on the N sectors.

[0594] As an embodiment, the N beacons include an indication of a sector identifier.

[0595] As an embodiment, the N beacons are transmitted on different sector beams.

[0596] As an embodiment, the sending of some of the N beacons may overlap in the time domain.

[0597] As an embodiment, the sector training message includes N SSW frames respectively transmitted on the N sectors.

[0598] As an embodiment, the N SSW frames include an indication of a sector identifier.

[0599] As an embodiment, the N SSW frames are transmitted on different sector beams.

[0600] As an embodiment, each adjacent SSW frame in the N SSW frames is spaced one SBIFS (short beamforming interframe space).

[0601] As an embodiment, the first N1 SSW frames included in the N SSW frames are associated with the first DMG antenna, and the last N2 SSW frames are associated with the second DMG antenna.

[0602] As an embodiment, each adjacent SSW frame in the N1 SSW frames is spaced one SBIFS apart.

[0603] As an embodiment, each adjacent SSW frame in the N2 SSW frames is separated by one SBIFS.

[0604] As an embodiment, the last SSW frame among the N1 SSW frames and the first SSW frame among the N2 SSW frames are spaced apart by one LBIFS (long beamforming interframe space).

[0605] As an embodiment, the above description of the inter-frame interval during the SSW frame sector training is also applicable to the case where the sector training message consists of N DMG beacon frames.

[0606] As an embodiment, the first node receives a sector feedback message from the second node after sending the sector training message.

[0607] As an embodiment, the first TXOP includes receiving a sector feedback message sent by the second node.

[0608] As an embodiment, the sector detection RAW includes receiving the sector feedback message sent by the second node.

[0609] As an embodiment, the at least one RAW allocation subdomain includes a second RAW allocation subdomain different from the first RAW allocation subdomain; wherein the second RAW allocation subdomain is associated with the second node.

[0610] As an embodiment, the value of the RAW type field included in the RAW control subfield included in the second RAW allocation subfield is 1, indicating sounding RAW.

[0611] As an embodiment, the value of the RAW type option subfield included in the RAW control subfield included in the second RAW allocation subfield is 3, indicating a sector report RAW.

[0612] As an embodiment, the sector report RAW includes receiving the sector training message sent by the second node.

[0613] As an embodiment, the sector feedback message indicates the first sector among N sectors included in the first node.

[0614] As an embodiment, the first sector includes M areas.

[0615] As an embodiment, the first node sends an area training message within the area training duration T2.

[0616] As an embodiment, the area training message includes M consecutive area training NDP CTS frames respectively sent on the M areas.

[0617] As an embodiment, the M consecutive area training NDP CTS frames are sent on the same sector beam.

[0618] As an embodiment, the M consecutive area training NDP CTS frames are forwarded by the RIS to the M areas respectively.

[0619] As an embodiment, the M consecutive area training NDP CTS frames include a second type of identifier, and the second type of identifier is associated with the multiple areas.

[0620] As an embodiment, one area training NDP CTS frame among the M consecutive area training NDP CTS frames indicates the second identifier; wherein the second identifier belongs to the second category of identifiers.

[0621] As an embodiment, the order in which each area training NDP CTS frame in the M consecutive area training NDP CTS frames is sent is related to the second type of identifier.

[0622] As an embodiment, there is a SIFS interval between any two area training NDP CTS frames in the M consecutive area training NDP CTS frames.

[0623] As an embodiment, the area training duration T2 of the first sector is not less than the sum of the sending time of M area training NDP CTS frames and M-1 SIFS.

[0624] As an embodiment, the M consecutive area training NDP CTS frames are sent in the second TXOP.

[0625] As an embodiment, the first node receives an area training request from the second node in this application within the second TXOP.

[0626] As an embodiment, the first TXOP and the second TXOP are the same TXOP.

[0627] As an embodiment, the M consecutive area training NDP CTS frames are sent in the sector detection RAW.

[0628] As an embodiment, the first node sends a fourth beacon before sector training, and the fourth beacon is used to indicate area detection in a subsequent beacon interval; wherein the RPS element included in the fourth beacon includes at least one RAW allocation subfield.

[0629] As an embodiment, a third RAW allocation subfield in the at least one RAW allocation subfield included in the fourth beacon is associated with the second node in this application.

[0630] As an embodiment, the value of the RAW type field included in the RAW control subfield included in the third RAW allocation subfield is 1, indicating probing RAW.

[0631] As an embodiment, the value of the RAW type option subfield included in the RAW control subfield included in the third RAW allocation subfield is greater than 3, indicating area detection RAW.

[0632] As an embodiment, the third RAW allocation subfield indicates the start time and duration of the regional training.

[0633] As an embodiment, the area training message includes M sector beacons respectively transmitted on the M areas in the first sector.

[0634] As an embodiment, the M sector beacons are transmitted on the same sector beam.

[0635] As an embodiment, the transmission of the M sector beacons is orthogonal in the time domain.

[0636] As an embodiment, the area training message includes M SSW frames respectively sent on the M areas in the first sector.

[0637] As an embodiment, the M SSW frames include an indication of the area identifier.

[0638] As an embodiment, the M SSW frames are transmitted on different regional beams.

[0639] As an embodiment, each adjacent SSW frame in the M SSW frames is separated by at least one SBIFS.

[0640] As an embodiment, each adjacent SSW frame in the M SSW frames is separated by at least a predefined inter-frame space.

[0641] As an embodiment, the above description of the inter-frame interval during SSW frame area training is also applicable to the case where the area training message consists of M DMG beacon frames.

[0642] As an embodiment, there is at least one LBIFS interval between a frame included in the sector training message and the first frame of the area training message.

[0643] As an embodiment, a frame included in the sector training message is spaced from the first frame of the area training message by at least a predefined interframe space.

[0644] As an embodiment, the interval between a frame included in the sector training message and the first frame of the area training message is related to the RIS.

[0645] As an embodiment, the first node receives a regional feedback message for the first sector from the second node.

[0646] As an embodiment, the area feedback message for the first sector includes an indication of the second identifier.

[0647] As an embodiment, the second TXOP includes receiving the area feedback message for the first sector sent by the second node.

[0648] As an embodiment, the area detection RAW includes receiving the area feedback message for the first sector sent by the second node.

[0649] As an embodiment, the fourth beacon includes a fourth RAW allocation sub-field; wherein the fourth RAW allocation sub-field is associated with the second node.

[0650] As an embodiment, the value of the RAW type field included in the RAW control subfield included in the fourth RAW allocation subfield is 1, indicating probing RAW.

[0651] As an embodiment, the value of the RAW type option subfield included in the RAW control subfield included in the fourth RAW allocation subfield is greater than 3, indicating that the area reports RAW.

[0652] As an embodiment, the area report RAW includes receiving the area feedback message for the first sector sent by the second node.

[0653] As an embodiment, the fourth beacon, the third beacon, and the first beacon are the same beacon frame.

[0654] As an embodiment, the above method has the advantage of improving regional training efficiency.

[0655] As an embodiment, the advantage of the above method is that it can refine beam coverage and improve network throughput.

[0656] As an embodiment, the area training of the first sector is implementation dependent.

[0657] Example 12

[0658] Embodiment 12 illustrates a structural block diagram of a processing device in a first node according to an embodiment of the present application, as shown in FIG12. In FIG12, the processing device 1200 in the first node includes a first transmitter 1201, a first transceiver 1202, and a second transceiver 1203.

[0659] In embodiment 12, the first transmitter 1201 sends a first message, where the first message indicates a first time domain resource, where the first time domain resource is composed of multiple time domain sub-resources, and any two of the multiple time domain sub-resources are not continuous in time; wherein the message type of the first message is any candidate type in a first candidate type set, and one candidate type in the first candidate type set is RTS.

[0660] As an embodiment, the first time domain resource is one of a plurality of candidate time domain resources, and any two of the plurality of candidate time domain resources do not overlap in time.

[0661] As an embodiment, the first transmitter 1201 sends a second message, and the second message indicates a second time domain resource; wherein the message type of the second message is any candidate type in the first candidate type set, and the second time domain resource includes a first moment; the first moment is orthogonal to the first time domain resource, and the first moment is located between the start moment of the first time domain resource and the end moment of the first time domain resource.

[0662] As an embodiment, the first transmitter 1201 sends a first beacon at the starting moment of a first time domain sub-resource, and the first time domain sub-resource is any time domain sub-resource among the multiple time domain sub-resources constituting the first time domain resource, and the first beacon includes a first identifier and a second identifier; wherein the first identifier indicates a first sector, and the first sector includes multiple areas; the second identifier indicates a first area, and the first area is one of the multiple areas.

[0663] As an embodiment, the first transmitter 1201 sends a first beacon at the start time of a first time domain sub-resource, the first time domain sub-resource being any of the multiple time domain sub-resources constituting the first time domain resource, the first beacon including a first identifier and a second identifier; wherein the first identifier indicates a first sector, the first sector including multiple areas; the second identifier indicates a first area, the first area being one of the multiple areas. The first transceiver 1202 sends data to a station within the first area in the first time domain sub-resource after the first beacon, or receives data from a station within the first area; wherein the first beacon includes at least one group identifier; the station within the first area belongs to at least one group indicated by the at least one group identifier.

[0664] In one embodiment, the first transmitter 1201 transmits a first beacon at the start of a first time domain sub-resource, the first time domain sub-resource being any of the multiple time domain sub-resources comprising the first time domain resource, the first beacon including a first identifier and a second identifier, wherein the first identifier indicates a first sector, the first sector including multiple regions, and the second identifier indicates a first region, the first region being one of the multiple regions. The first transceiver 1202 transmits data to or receives data from a station within the first region in the first time domain sub-resource after the first beacon, wherein the first beacon includes at least one group identifier, and the stations within the first region belong to at least one group indicated by the at least one group identifier. The second transceiver 1203 transmits a sector training message, receives a sector feedback message, the sector feedback message indicating the first sector, transmits a region training message in the first sector, and receives a region feedback message in the first sector, the region feedback message indicating the first region.

[0665] As an embodiment, the first message includes a first field, and the first field indicates the time interval between the start times of the multiple time domain sub-resources constituting the first time domain resource.

[0666] As an embodiment, the first node 1200 is an AP.

[0667] As an embodiment, the first node 1200 is a relay device.

[0668] As an embodiment, the first node 1200 is a user terminal.

[0669] As an embodiment, the first transceiver 1202 and the second transceiver 1203 are the same transceiver.

[0670] As an embodiment, the first transceiver 1202 and the second transceiver 1203 are different transceivers.

[0671] As an embodiment, the first transmitter 1201 includes the transmitter 454 (including the antenna 452), the transmission processor 468, the multi-antenna transmission processor 457 and the controller / processor 459 in FIG. 4 of the present application.

[0672] As an embodiment, the first transmitter 1201 includes at least one of the transmitter 454 (including the antenna 452), the transmit processor 468, the multi-antenna transmit processor 457 or the controller / processor 459 in FIG. 4 of the present application.

[0673] As an embodiment, the first transceiver 1202 includes the receiver 454 (including the antenna 452 ), the receiving processor 456 , the multi-antenna receiving processor 458 and the controller / processor 459 in FIG. 4 of the present application.

[0674] As an embodiment, the first transceiver 1202 includes at least one of the receiver 454 (including the antenna 452), the receiving processor 456, the multi-antenna receiving processor 458 or the controller / processor 459 in FIG. 4 of the present application.

[0675] As an embodiment, the first transceiver 1202 includes the transmitter 454 (including the antenna 452), the transmit processor 468, the multi-antenna transmit processor 457 and the controller / processor 459 in FIG. 4 of the present application.

[0676] As an embodiment, the first transceiver 1202 includes at least one of the transmitter 454 (including the antenna 452), the transmit processor 468, the multi-antenna transmit processor 457 or the controller / processor 459 in FIG. 4 of the present application.

[0677] As an embodiment, the second transceiver 1203 includes the receiver 454 (including the antenna 452 ), the receiving processor 456 , the multi-antenna receiving processor 458 and the controller / processor 459 in FIG. 4 of the present application.

[0678] As an embodiment, the second transceiver 1203 includes at least one of the receiver 454 (including the antenna 452), the receiving processor 456, the multi-antenna receiving processor 458 or the controller / processor 459 in FIG. 4 of the present application.

[0679] As an embodiment, the second transceiver 1203 includes the transmitter 454 (including the antenna 452), the transmit processor 468, the multi-antenna transmit processor 457 and the controller / processor 459 in FIG. 4 of the present application.

[0680] As an embodiment, the second transceiver 1203 includes at least one of the transmitter 454 (including the antenna 452), the transmit processor 468, the multi-antenna transmit processor 457 or the controller / processor 459 in FIG. 4 of the present application.

[0681] Example 13

[0682] Embodiment 13 illustrates a structural block diagram of a processing device in a second node according to an embodiment of the present application, as shown in FIG13 . In FIG13 , the processing device 1300 in the second node includes a second receiver 1301 , a third transceiver 1302 , and a fourth transceiver 1303 .

[0683] In embodiment 13, the second receiver 1301 receives a first message, where the first message indicates a first time domain resource, where the first time domain resource is composed of multiple time domain sub-resources, and any two of the multiple time domain sub-resources are not continuous in time; wherein the message type of the first message is any candidate type in a first candidate type set, and one candidate type in the first candidate type set is RTS.

[0684] As an embodiment, the first time domain resource is one of a plurality of candidate time domain resources, and any two of the plurality of candidate time domain resources do not overlap in time.

[0685] As an embodiment, the second receiver 1301 receives a second message, and the second message indicates a second time domain resource; wherein the message type of the second message is any candidate type in the first candidate type set, and the second time domain resource includes a first moment; the first moment is orthogonal to the first time domain resource, and the first moment is located between the start moment of the first time domain resource and the end moment of the first time domain resource.

[0686] As an embodiment, the second receiver 1301 receives a first beacon at the starting moment of a first time domain sub-resource, and the first time domain sub-resource is any time domain sub-resource among the multiple time domain sub-resources constituting the first time domain resource, and the first beacon includes a first identifier and a second identifier; wherein the first identifier indicates a first sector, and the first sector includes multiple areas; the second identifier indicates a first area, and the first area is one of the multiple areas.

[0687] As an embodiment, the second receiver 1301 receives a first beacon at the start time of a first time domain sub-resource, the first time domain sub-resource being any of the multiple time domain sub-resources constituting the first time domain resource, the first beacon including a first identifier and a second identifier; wherein the first identifier indicates a first sector, the first sector including multiple areas; the second identifier indicates a first area, the first area being one of the multiple areas. The third transceiver 1302 receives data from a station within the first area in the first time domain sub-resource after the first beacon, or transmits data to a station within the first area; wherein the first beacon includes at least one group identifier; and the station within the first area belongs to at least one group indicated by the at least one group identifier.

[0688] In one embodiment, the second receiver 1301 receives a first beacon at the start time of a first time domain sub-resource, the first time domain sub-resource being any of the multiple time domain sub-resources comprising the first time domain resource, the first beacon including a first identifier and a second identifier, wherein the first identifier indicates a first sector, the first sector including multiple regions, and the second identifier indicates a first region, the first region being one of the multiple regions. The third transceiver 1302 receives data from a station within the first region or transmits data to a station within the first region in the first time domain sub-resource after the first beacon, wherein the first beacon includes at least one group identifier, and the stations within the first region belong to at least one group indicated by the at least one group identifier. The fourth transceiver 1303 receives a sector training message, transmits a sector feedback message, the sector feedback message indicating the first sector, receives a region training message in the first sector, and transmits a region feedback message in the first sector, the region feedback message indicating the first region.

[0689] As an embodiment, the first message includes a first field, and the first field indicates the time interval between the start times of the multiple time domain sub-resources constituting the first time domain resource.

[0690] As an embodiment, the second node 1300 is a user terminal.

[0691] As an embodiment, the second node 1300 is an 802.11 AP.

[0692] As an embodiment, the second node 1300 is a relay device.

[0693] As an embodiment, the third transceiver 1302 and the fourth transceiver 1303 are the same transceiver.

[0694] As an embodiment, the third transceiver 1302 and the fourth transceiver 1303 are different transceivers.

[0695] As an embodiment, the second receiver 1301 includes the receiver 418 (including the antenna 420 ), the receiving processor 470 , the multi-antenna receiving processor 472 and the controller / processor 475 in FIG. 4 of the present application.

[0696] As an embodiment, the second receiver 1301 includes at least one of the receiver 418 (including the antenna 420), the receiving processor 470, the multi-antenna receiving processor 472 and the controller / processor 475 in FIG. 4 of the present application.

[0697] As an embodiment, the fourth transceiver 1302 includes the transmitter 418 (including the antenna 420), the transmit processor 416, the multi-antenna transmit processor 471 and the controller / processor 475 in FIG. 4 of the present application.

[0698] As an embodiment, the fourth transceiver 1302 includes at least one of the transmitter 418 (including the antenna 420), the transmit processor 416, the multi-antenna transmit processor 471 and the controller / processor 475 in FIG. 4 of the present application.

[0699] As an embodiment, the fourth transceiver 1302 includes the receiver 418 (including the antenna 420 ), the receiving processor 470 , the multi-antenna receiving processor 472 and the controller / processor 475 in FIG. 4 of the present application.

[0700] As an embodiment, the fourth transceiver 1302 includes at least one of the receiver 418 (including the antenna 420), the receiving processor 470, the multi-antenna receiving processor 472 and the controller / processor 475 in FIG. 4 of the present application.

[0701] As an embodiment, the fourth transceiver 1303 includes the transmitter 418 (including the antenna 420), the transmit processor 416, the multi-antenna transmit processor 471 and the controller / processor 475 in FIG. 4 of the present application.

[0702] As an embodiment, the fourth transceiver 1303 includes at least one of the transmitter 418 (including the antenna 420), the transmit processor 416, the multi-antenna transmit processor 471 and the controller / processor 475 in FIG. 4 of the present application.

[0703] As an embodiment, the fourth transceiver 1303 includes the receiver 418 (including the antenna 420 ), the receiving processor 470 , the multi-antenna receiving processor 472 and the controller / processor 475 in FIG. 4 of the present application.

[0704] As an embodiment, the fourth transceiver 1303 includes at least one of the receiver 418 (including the antenna 420), the receiving processor 470, the multi-antenna receiving processor 472 and the controller / processor 475 in FIG. 4 of the present application.

[0705] Those skilled in the art will appreciate that all or part of the steps in the above method can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable storage medium, such as a read-only memory, a hard disk or an optical disk. Optionally, all or part of the steps in the above embodiment can also be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiment can be implemented in the form of hardware or in the form of a software functional module. The present application is not limited to any specific form of combination of software and hardware. The first type of communication node or UE or terminal in the present application includes but is not limited to mobile phones, tablets, notebooks, network cards, low-power devices, eMTC (enhanced Machine Type Communication) devices, NB-IoT devices, vehicle-mounted communication equipment, aircraft, airplanes, drones, remote-controlled aircraft and other wireless communication devices. The second type of communication node or base station or network-side device in the present application includes but is not limited to macrocell base stations, microcell base stations, home base stations, relay base stations, eNBs, gNBs, transmission and reception nodes TRPs (Transmission and Reception Points), relay satellites, satellite base stations, aerial base stations and other wireless communication devices.

[0706] The above description is only a preferred embodiment of the present application and is not intended to limit the scope of protection of the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A first node used for wireless communication, characterized in that, Comprising: A first transmitter that sends a first message, where the first message indicates a first time-domain resource, the first time-domain resource consists of a plurality of time-domain sub-resources, and any two of the plurality of time-domain sub-resources are not continuous in time; Wherein, the message type of the first message is any candidate type in a first candidate type set, and one candidate type in the first candidate type set is RTS.

2. The first node according to claim 1, characterized in that The first time-domain resource is one of a plurality of candidate time-domain resources, and any two of the plurality of candidate time-domain resources do not overlap in time.

3. The first node according to claim 1 or 2, characterized in that, Comprising: The first transmitter that sends a second message, where the second message indicates a second time-domain resource; Wherein, the message type of the second message is any candidate type in the first candidate type set, the second time-domain resource includes a first moment; the first moment is orthogonal to the first time-domain resource and is located between the start moment and the end moment of the first time-domain resource.

4. The first node according to any one of claims 1 to 3, characterized in that Comprising: The first transmitter that sends a first beacon at the start moment of a first time-domain sub-resource, the first time-domain sub-resource is any one of the plurality of time-domain sub-resources that make up the first time-domain resource, and the first beacon includes a first identifier and a second identifier; Wherein, the first identifier indicates a first sector, the first sector includes a plurality of regions; the second identifier indicates a first region, and the first region is one of the plurality of regions.

5. The first node according to claim 4, wherein Comprising: A first transceiver that sends data to a station within the first region in the first time-domain sub-resource after the first beacon, or receives data from a station within the first region; Wherein, the first beacon includes at least one packet identifier; the stations within the first region belong to at least one packet indicated by the at least one packet identifier.

6. The first node according to any one of claims 4 or 5, characterized in that Comprising: A second transceiver that sends a sector training message; Receives a sector feedback message that indicates the first sector; Sends a region training message in the first sector; Receives a region feedback message in the first sector, and the region feedback message indicates the first region.

7. The first node according to any one of claims 1 to 6, characterized in that, The first message includes a first field that indicates the time interval between the start moments of the plurality of time-domain sub-resources that make up the first time-domain resource.

8. A second node used for wireless communication, characterized in that, Comprising: A second receiver that receives a first message, where the first message indicates a first time-domain resource, the first time-domain resource consists of a plurality of time-domain sub-resources, and any two of the plurality of time-domain sub-resources are not continuous in time; Wherein, the message type of the first message is any candidate type in a first candidate type set, and one candidate type in the first candidate type set is RTS.

9. A method for a first node used in wireless communication, characterized in that, Comprising: Sends a first message, where the first message indicates a first time-domain resource, the first time-domain resource consists of a plurality of time-domain sub-resources, and any two of the plurality of time-domain sub-resources are not continuous in time; Wherein, the message type of the first message is any candidate type in a first candidate type set, and one candidate type in the first candidate type set is RTS.

10. A method for a second node used in wireless communication, characterized in that, Comprising: Receive a first message, where the first message indicates a first time-domain resource, and the first time-domain resource consists of a plurality of time-domain sub-resources, and any two of the plurality of time-domain sub-resources are not continuous in time; Among them, the message type of the first message is any candidate type in a first candidate type set, and one candidate type in the first candidate type set is RTS.

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